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Sample records for 12-month time point

  1. Developmental milestones record - 12 months

    MedlinePlus

    Normal childhood growth milestones - 12 months; Growth milestones for children - 12 months; Childhood growth milestones - 12 months ... care provider. PHYSICAL AND MOTOR SKILLS A 12-month-old child is expected to: Be 3 times ...

  2. Patient and program predictors of 12-month outcomes for homeless veterans following discharge from time-limited residential treatment.

    PubMed

    McGuire, James; Rosenheck, Robert A; Kasprow, Wesley J

    2011-05-01

    The U.S. Department of Veterans Affairs provides transitional residential treatment to homeless veterans through three types of programs: VA-staffed Domiciliary care, and two types of community-based treatment (one funded through locally managed contracts and the other through national grants). This study compared treatment process and outcomes in these three programs and also sought to identify differences in outcome between dually diagnosed veterans, veterans with substance abuse problems or psychiatric problems alone, and those with no psychiatric diagnoses. Altogether, 1,338 veterans admitted to the 3 types of program were recruited to participate in a prospective naturalistic study which evaluated housing, clinical and community adjustment outcomes during the year following discharge. Data on 1,003 veterans for whom psychiatric diagnostic, social climate and length of stay data were available were used to compare participants in the three program types at baseline. Regression models were used to compare outcomes across program and diagnostic types net of baseline differences between study participants, and of differences in social climate and length of stay. The overall follow-up rate across all time points was 72%. Significant differences across programs were observed on only 2 baseline measures as well as on several baseline values of the outcome measures, length of stay and a measure of social climate. Adjusting for veteran baseline differences alone there were no differences in outcomes by program after correction for multiple comparisons. Dually diagnosed veterans had poorer mental health and overall quality of life outcomes. Longer length of stay and more positive social climate were associated with superior outcomes on several measures. The adjusted mean estimate of the proportion of veterans housed at 12 months follow-up was 78%, similar to published outcomes for supported housing. Length of stay, rather than program funding configuration or

  3. Your Child's Development: 1 Year (12 Months)

    MedlinePlus

    ... Year-Old Your Child’s Development: 1 Year (12 Months) KidsHealth > For Parents > Your Child’s Development: 1 Year (12 Months) A A A Your little one is now ... THIS TOPIC Your Child's Checkup: 1 Year (12 Months) Your Baby's Growth: 12 Months Your Baby's Hearing, ...

  4. BRAVISSIMO: 12-month results from a large scale prospective trial.

    PubMed

    Bosiers, M; Deloose, K; Callaert, J; Maene, L; Beelen, R; Keirse, K; Verbist, J; Peeters, P; Schroë, H; Lauwers, G; Lansink, W; Vanslembroeck, K; D'archambeau, O; Hendriks, J; Lauwers, P; Vermassen, F; Randon, C; Van Herzeele, I; De Ryck, F; De Letter, J; Lanckneus, M; Van Betsbrugge, M; Thomas, B; Deleersnijder, R; Vandekerkhof, J; Baeyens, I; Berghmans, T; Buttiens, J; Van Den Brande, P; Debing, E; Rabbia, C; Ruffino, A; Tealdi, D; Nano, G; Stegher, S; Gasparini, D; Piccoli, G; Coppi, G; Silingardi, R; Cataldi, V; Paroni, G; Palazzo, V; Stella, A; Gargiulo, M; Muccini, N; Nessi, F; Ferrero, E; Pratesi, C; Fargion, A; Chiesa, R; Marone, E; Bertoglio, L; Cremonesi, A; Dozza, L; Galzerano, G; De Donato, G; Setacci, C

    2013-04-01

    The BRAVISSIMO study is a prospective, non-randomized, multi-center, multi-national, monitored trial, conducted at 12 hospitals in Belgium and 11 hospitals in Italy. This manuscript reports the findings up to the 12-month follow-up time point for both the TASC A&B cohort and the TASC C&D cohort. The primary endpoint of the study is primary patency at 12 months, defined as a target lesion without a hemodynamically significant stenosis on Duplex ultrasound (>50%, systolic velocity ratio no greater than 2.0) and without target lesion revascularization (TLR) within 12 months. Between July 2009 and September 2010, 190 patients with TASC A or TASC B aortoiliac lesions and 135 patients with TASC C or TASC D aortoiliac lesions were included. The demographic data were comparable for the TASC A/B cohort and the TASC C/D cohort. The number of claudicants was significantly higher in the TASC A/B cohort, The TASC C/D cohort contains more CLI patients. The primary patency rate for the total patient population was 93.1%. The primary patency rates at 12 months for the TASC A, B, C and D lesions were 94.0%, 96.5%, 91.3% and 90.2% respectively. No statistical significant difference was shown when comparing these groups. Our findings confirm that endovascular therapy, and more specifically primary stenting, is the preferred treatment for patients with TASC A, B, C and D aortoiliac lesions. We notice similar endovascular results compared to surgery, however without the invasive character of surgery.

  5. Perceptual learning: 12-month-olds' discrimination of monkey faces.

    PubMed

    Fair, Joseph; Flom, Ross; Jones, Jacob; Martin, Justin

    2012-11-01

    Six-month-olds reliably discriminate different monkey and human faces whereas 9-month-olds only discriminate different human faces. It is often falsely assumed that perceptual narrowing reflects a permanent change in perceptual abilities. In 3 experiments, ninety-six 12-month-olds' discrimination of unfamiliar monkey faces was examined. Following 20 s of familiarization, and two 5-s visual-paired comparison test trials, 12-month-olds failed to show discrimination. However, following 40 s of familiarization and two 10-s test trials, 12-month-olds showed reliable discrimination of novel monkey faces. A final experiment was performed demonstrating 12-month-olds' discrimination of the monkey face was due to the increased familiarization rather than increased time of visual comparison. Results are discussed in the context of perceptual narrowing, in particular the flexible nature of perceptual narrowing.

  6. Breastfeeding beyond 12 months. An historical perspective.

    PubMed

    Piovanetti, Y

    2001-02-01

    A decade ago, child psychiatrist Coello-Novello, in her term as Surgeon General of the United States, said, "It's the lucky baby, I feel, who continues to nurse until he's two." The accumulated evidence supports her statement. The understanding of the benefits of breastfeeding beyond 12 months should support the cultural change in which eventually prolonged breastfeeding becomes normal.

  7. Mindfulness meditation and cognitive behavioral therapy for insomnia: a naturalistic 12-month follow-up.

    PubMed

    Ong, Jason C; Shapiro, Shauna L; Manber, Rachel

    2009-01-01

    A unique intervention combining mindfulness meditation with cognitive behavioral therapy for insomnia (CBT-I) has been shown to have acute benefits at posttreatment in an open label study. The aim of the present study was to examine the long-term effects of this integrated intervention on measures of sleep and sleep-related distress in an attempt to characterize the natural course of insomnia following this treatment and to identify predictors of poor long-term outcome. Analyses were conducted on 21 participants, who provided follow-up data at six and 12 months posttreatment. At each time point, participants completed one week of sleep and meditation diaries and questionnaires related to mindfulness, sleep, and sleep-related distress, including the Pre-Sleep Arousal Scale, the Glasgow Sleep Effort Scale, the Kentucky Inventory of Mindfulness Skills, and the Insomnia Episode Questionnaire. Analyses examining the pattern of change across time (baseline, end of treatment, six months, and 12 months) revealed that several sleep-related benefits were maintained during the 12-month follow-up period. Participants who reported at least one insomnia episode (>or=1 month) during the follow-up period had higher scores on the Pre-Sleep Arousal Scale (P < .05) and the Glasgow Sleep Effort Scale (P < .05) at end of treatment compared with those with no insomnia episodes. Correlations between mindfulness skills and insomnia symptoms revealed significant negative correlations (P < .05) between mindfulness skills and daytime sleepiness at each of the three time points but not with nocturnal symptoms of insomnia. These results suggest that most sleep-related benefits of an intervention combining CBT-I and mindfulness meditation were maintained during the 12-month follow-up period, with indications that higher presleep arousal and sleep effort at end of treatment constitute a risk for occurrence of insomnia during the 12 months following treatment.

  8. Recovery 3 and 12 months after hysterectomy

    PubMed Central

    Theunissen, Maurice; Peters, Madelon L.; Schepers, Jan; Maas, Jacques W.M.; Tournois, Fleur; van Suijlekom, Hans A.; Gramke, Hans-Fritz; Marcus, Marco A.E.

    2016-01-01

    Abstract Chronic postsurgical pain (CPSP) is 1 important aspect of surgical recovery. To improve perioperative care and postoperative recovery knowledge on predictors of impaired recovery is essential. The aim of this study is to assess predictors and epidemiological data of CPSP, physical functioning (SF-36PF, 0–100), and global surgical recovery (global surgical recovery index, 0–100%) 3 and 12 months after hysterectomy for benign indication. A prospective multicenter cohort study was performed. Sociodemographic, somatic, and psychosocial data were assessed in the week before surgery, postoperatively up to day 4, and at 3- and 12-month follow-up. Generalized linear model (CPSP) and linear-mixed model analyses (SF-36PF and global surgical recovery index) were used. Baseline data of 468 patients were collected, 412 (88%) patients provided data for 3-month evaluation and 376 (80%) patients for 12-month evaluation. After 3 and 12 months, prevalence of CPSP (numeric rating scale ≥ 4, scale 0–10) was 10.2% and 9.0%, respectively, SF-36PF means (SD) were 83.5 (20.0) and 85.9 (20.2), global surgical recovery index 88.1% (15.6) and 93.3% (13.4). Neuropathic pain was reported by 20 (5.0%) patients at 3 months and 14 (3.9%) patients at 12 months. Preoperative pain, surgery-related worries, acute postsurgical pain on day 4, and surgery-related infection were significant predictors of CPSP. Baseline level, participating center, general psychological robustness, indication, acute postsurgical pain, and surgery-related infection were significant predictors of SF-36PF. Predictors of global surgical recovery were baseline expectations, surgery-related worries, American Society of Anesthesiologists classification, type of anesthesia, acute postsurgical pain, and surgery-related infection. Several predictors were identified for CPSP, physical functioning, and global surgical recovery. Some of the identified factors are modifiable and optimization of patients’ preoperative

  9. Senses and Your 8- to 12-Month-Old

    MedlinePlus

    ... TOPIC Feeding Your 8- to 12-Month-Old Sleep and Your 8- to 12-Month-Old Your Child's Vision Communication and Your 8- to 12-Month-Old Movement, Coordination, and Your 8- to 12-Month-Old Your Baby's Growth: 8 Months Your Child's Growth Learning, Play, and ...

  10. Medical Care and Your 8- to 12-Month-Old

    MedlinePlus

    ... Old Medical Care and Your 8- to 12-Month-Old KidsHealth > For Parents > Medical Care and Your 8- to 12-Month-Old A A A What's in this article? ... baby visits during this period, once at 9 months and again at 12 months . If you have ...

  11. 6 Minute Walk Test in Duchenne MD Patients with Different Mutations: 12 Month Changes

    PubMed Central

    Pane, Marika; Mazzone, Elena S.; Sormani, Maria Pia; Messina, Sonia; Vita, Gian Luca; Fanelli, Lavinia; Berardinelli, Angela; Torrente, Yvan; D'Amico, Adele; Lanzillotta, Valentina; Viggiano, Emanuela; D'Ambrosio, Paola; Cavallaro, Filippo; Frosini, Silvia; Bello, Luca; Bonfiglio, Serena; Scalise, Roberta; De Sanctis, Roberto; Rolle, Enrica; Bianco, Flaviana; Van der Haawue, Marlene; Magri, Francesca; Palermo, Concetta; Rossi, Francesca; Donati, Maria Alice; Alfonsi, Chiara; Sacchini, Michele; Arnoldi, Maria Teresa; Baranello, Giovanni; Mongini, Tiziana; Pini, Antonella; Battini, Roberta; Pegoraro, Elena; Previtali, Stefano C.; Napolitano, Sara; Bruno, Claudio; Politano, Luisa; Comi, Giacomo P.; Bertini, Enrico; Morandi, Lucia; Gualandi, Francesca; Ferlini, Alessandra; Goemans, Nathalie; Mercuri, Eugenio

    2014-01-01

    Objective In the last few years some of the therapeutical approaches for Duchenne muscular dystrophy (DMD) are specifically targeting distinct groups of mutations, such as deletions eligible for skipping of individual exons. The aim of this observational study was to establish whether patients with distinct groups of mutations have different profiles of changes on the 6 minute walk test (6MWT) over a 12 month period. Methods The 6MWT was performed in 191 ambulant DMD boys at baseline and 12 months later. The results were analysed using a test for heterogeneity in order to establish possible differences among different types of mutations (deletions, duplications, point mutations) and among subgroups of deletions eligible to skip individual exons. Results At baseline the 6MWD ranged between 180 and 560,80 metres (mean 378,06, SD 74,13). The 12 month changes ranged between −325 and 175 (mean −10.8 meters, SD 69.2). Although boys with duplications had better results than those with the other types of mutations, the difference was not significant. Similarly, boys eligible for skipping of the exon 44 had better baseline results and less drastic changes than those eligible for skipping exon 45 or 53, but the difference was not significant. Conclusions even if there are some differences among subgroups, the mean 12 month changes in each subgroup were all within a narrow Range: from the mean of the whole DMD cohort. This information will be of help at the time of designing clinical trials with small numbers of eligible patients. PMID:24421885

  12. Maternal Antenatal Depression and Infant Disorganized Attachment at 12 months

    PubMed Central

    Hayes, Lisa J.; Goodman, Sherryl H.; Carlson, Elizabeth

    2012-01-01

    Although high rates of attachment disorganization have been observed in infants of depressed mothers, little is known about the role of antenatal depression as a precursor to infant attachment disorganization. The primary aim of this study was to examine associations between maternal antenatal depression and infant disorganization at 12 months in a sample of women (N = 79) at risk for perinatal depression. A secondary aim was to test the roles of maternal postpartum depression and maternal parenting quality as potential moderators of this predicted association. Among women with histories of major depressive episodes, maternal depressive symptoms were assessed at multiple times during pregnancy and the first year postpartum, maternal parenting quality was measured at 3 months postpartum, and attachment disorganization was assessed at 12 months postpartum. Results revealed that infants classified as disorganized had mothers with higher levels of depressive symptoms during pregnancy compared to infants classified as organized. Maternal parenting quality moderated this association, as exposure to higher levels of maternal depressive symptoms during pregnancy was only associated with higher rates of infant disorganized attachment when maternal parenting at 3 months was less optimal. These findings suggest that enhancing maternal parenting behaviors during this early period in development has the potential to alter pathways to disorganized attachment among infants exposed to antenatal maternal depressive symptoms, which could have enduring consequences for child wellbeing. PMID:23216358

  13. Learning, Play, and Your 8- to 12-Month-Old

    MedlinePlus

    ... Old Learning, Play, and Your 8- to 12-Month-Old KidsHealth > For Parents > Learning, Play, and Your 8- to 12-Month-Old A A A What's in this article? ... baby becomes more mobile during these next few months. What Is My Child Learning? Your little one ...

  14. Feeding Your 8- to 12-Month-Old

    MedlinePlus

    ... 2-Year-Old Feeding Your 8- to 12-Month-Old KidsHealth > For Parents > Feeding Your 8- to 12-Month-Old A A A What's in this article? ... a 12 meses de edad By about 8 months old, most babies are pros at handling the ...

  15. Feeding Your 8- to 12-Month-Old

    MedlinePlus

    ... 2-Year-Old Feeding Your 8- to 12-Month-Old KidsHealth > For Parents > Feeding Your 8- to 12-Month-Old Print A A A What's in this ... a 12 meses de edad By about 8 months old, most babies are pros at handling the ...

  16. Learning, Play, and Your 8- to 12-Month-Old

    MedlinePlus

    ... Old Learning, Play, and Your 8- to 12-Month-Old KidsHealth > For Parents > Learning, Play, and Your 8- to 12-Month-Old Print A A A What's in this ... baby becomes more mobile during these next few months. What Is My Child Learning? Your little one ...

  17. Early Time Points Perfusion Imaging

    PubMed Central

    Kwong, Kenneth K.; Reese, Timothy G.; Nelissen, Koen; Wu, Ona; Chan, Suk-Tak; Benner, Thomas; Mandeville, Joseph B.; Foley, Mary; Vanduffel, Wim; Chesler, David A.

    2010-01-01

    The aim was to investigate the feasibility of making relative cerebral blood flow (rCBF) maps from MR images acquired with short TR by measuring the initial arrival amount of Gd-DTPA evaluated within a time window before any contrast agent has a chance to leave the tissue. We named this rCBF measurement technique utilizing the early data points of the Gd-DTPA bolus the “early time points” method (ET), based on the hypothesis that early time point signals were proportional to rCBF. Simulation data were used successfully to examine the ideal behavior of ET while monkey’s MRI results offered encouraging support to the utility of ET for rCBF calculation. A better brain coverage for ET could be obtained by applying the Simultaneous Echo Refocusing (SER) EPI technique. A recipe to run ET was presented, with attention paid to the noise problem around the time of arrival (TOA) of the contrast agent. PMID:20851196

  18. Safety for Your Child: 6 to 12 Months

    MedlinePlus

    ... Share Safety for Your Child: 6 to 12 Months Page Content Article Body ​ Did you know that ... may climb before walking, or walk with support months before you expect. Your child will grasp at ...

  19. Effects of Miniscalpel-Needle Release on Chronic Neck Pain: A Retrospective Analysis with 12-Month Follow-Up

    PubMed Central

    Li, Shuming; Shen, Tong; Liang, Yongshan; Zhang, Ying; Bai, Bo

    2015-01-01

    Objective Chronic neck pain is a highly prevalent condition, and is often treated with non-steroidal anti-inflammatory drugs. Limited clinical studies with short-term follow-up have shown promising efficacy of acupuncture as well as miniscalpel-needle (MSN) release. In this retrospective study, we examined whether MSN release could produce long-lasting relief in patients with chronic neck pain. Methods We retrieved the medical records of all patients receiving weekly MSN release treatment for chronic neck pain at this institution during a period from May 2012 to December 2013. Only cases with the following information at prior to, and 1, 6, and 12 months after the treatment, were included in the analysis: neck disability index (NDI), numerical pain rating scale (NPRS), and active cervical range of motion (CROM). The primary analysis of interest is comparison of the 12-month measures with the baseline. Patients who took analgesic drugs or massage within 2 weeks prior to assessment were excluded from the analysis. For MSN release, tender points were identified manually by an experienced physician, and did not necessarily follow the traditional acupuncture system. MSN was inserted vertically (parallel to the spine) until breaking through resistance and patient reporting of distention, soreness or heaviness. The depth of the needling ranged from 10 to 50 mm. The release was carried out by moving the MSN up and down 3–5 times without rotation. Results A total of 559 cases (patients receiving weekly MSN release treatment for chronic neck pain) were screened. The number of cases with complete information (NDI, NPRS, and CROM at baseline, 1, 6 and 12 months after last treatment) was 180. After excluding the cases with analgesic treatment or massage within 2 weeks of assessment (n = 53), a total of 127 cases were included in data analysis. The number of MSN release session was 7 (range: 4–11). At 12 months after the treatment, both NPRS and NDI were significantly lower

  20. Walking and Eating Behavior of Toddlers at 12 Months Old

    ERIC Educational Resources Information Center

    Koda, Naoko; Akimoto, Yuko; Hirose, Toshiya; Hinobayashi, Toshihiko; Minami, Tetsuhiro

    2004-01-01

    Locomotive and eating behavior of 52 toddlers was observed at 12 months old in a nursery school and investigated in relation to the acquisition of independent walking. The toddlers who acquired walking ate more by themselves using the hands than the toddlers who did not start walking. This suggested that acquisition of walking was associated with…

  1. Perceptual Learning: 12-Month-Olds' Discrimination of Monkey Faces

    ERIC Educational Resources Information Center

    Fair, Joseph; Flom, Ross; Jones, Jacob; Martin, Justin

    2012-01-01

    Six-month-olds reliably discriminate different monkey and human faces whereas 9-month-olds only discriminate different human faces. It is often falsely assumed that perceptual narrowing reflects a permanent change in perceptual abilities. In 3 experiments, ninety-six 12-month-olds' discrimination of unfamiliar monkey faces was examined. Following…

  2. 12-Month-Olds Produce Others' Intended but Unfulfilled Acts

    ERIC Educational Resources Information Center

    Nielsen, Mark

    2009-01-01

    Following Meltzoff's (1995) behavioral reenactment paradigm, this study investigated the ability of 12-month-olds (N = 44) to reproduce a model's attempted-but-failed actions on objects. Testing was conducted using a novel set of objects designed to enable young infants to readily identify the potential outcome of the model's actions. Infants who…

  3. Wideband acoustic immittance measures: developmental characteristics (0 to 12 months).

    PubMed

    Kei, Joseph; Sanford, Chris A; Prieve, Beth A; Hunter, Lisa L

    2013-07-01

    Rapid developmental changes of the peripheral auditory system in normal infants occur in the first year of life. Specifically, the postnatal development of the external and middle ear affects all measures of external and middle ear function including wideband acoustic immittance(WAI). This article provides an overview of WAI studies in newborns and infants from a developmental perspective. Normative WAI data in newborns are fairly consistent across studies. However, there are discrepancies in some WAI measures between studies, possibly due to differences in sampling, methodology, and instrumentation. Accuracy of WAI measurements is compromised when a good probe seal cannot be maintained during testing or an inaccurate estimate of the cross-sectional area of the ear canal of newborns occurs. Comparison of WAI data between age groups from 0 to 12 months reveals maturation effects. Additional age-specific longitudinal and cross-sectional normative WAI data for infants from birth to 12 months are required to validate and consolidate existing data.

  4. Auditory Temporal Pattern Perception in 6- and 12-Month-Old Infants.

    ERIC Educational Resources Information Center

    Morrongiello, Barbara A.

    1984-01-01

    A go/no-go conditioned head-turn paradigm was used to examine the abilities of 6- and 12-month-olds to discriminate changes in temporal grouping and their perception of absolute and relative timing information when listening to patterns of white-noise bursts. (Author/RH)

  5. Metacognitive functioning predicts positive and negative symptoms over 12 months in first episode psychosis.

    PubMed

    McLeod, Hamish J; Gumley, Andrew I; Macbeth, Angus; Schwannauer, Matthias; Lysaker, Paul H

    2014-07-01

    The negative symptoms of schizophrenia are a major source of impairment and distress but both pharmacological and psychological treatment options provide only modest benefit. Developing more effective psychological treatments for negative symptoms will require a more sophisticated understanding of the psychological processes that are implicated in their development and maintenance. We extended previous work by demonstrating that metacognitive functioning is related to negative symptom expression across the first 12 months of first episode psychosis (FEP). Previous studies in this area have either been cross-sectional or have used much older participants with long-standing symptoms. In this study, forty-five FEP participants were assessed three times over 12 months and provided data on PANSS rated symptoms, premorbid adjustment, metacognitive functioning, and DUP. Step-wise linear regression showed that adding metacognition scores to known predictors of negative symptoms (baseline symptom severity, gender, DUP, and premorbid academic and social adjustment) accounted for 62% of the variance in PANSS negative symptom scores at six months and 38% at 12 months. The same predictors also explained 47% of the variance in positive symptoms at both six and 12 months. However, exploration of the simple correlations between PANSS symptom scores and metacognition suggests a stronger univariate relationship between metacognition and negative symptoms. Overall, the results indicate that problems with mental state processing may be important determinants of negative symptom expression from the very early stages of psychosis. These results provide further evidence that metacognitive functioning is a potentially relevant target for psychological interventions.

  6. Language development at 18 months is related to multimodal communicative strategies at 12 months.

    PubMed

    Igualada, Alfonso; Bosch, Laura; Prieto, Pilar

    2015-05-01

    The present study investigated the degree to which an infants' use of simultaneous gesture-speech combinations during controlled social interactions predicts later language development. Nineteen infants participated in a declarative pointing task involving three different social conditions: two experimental conditions (a) available, when the adult was visually attending to the infant but did not attend to the object of reference jointly with the child, and (b) unavailable, when the adult was not visually attending to neither the infant nor the object; and (c) a baseline condition, when the adult jointly engaged with the infant's object of reference. At 12 months of age measures related to infants' speech-only productions, pointing-only gestures, and simultaneous pointing-speech combinations were obtained in each of the three social conditions. Each child's lexical and grammatical output was assessed at 18 months of age through parental report. Results revealed a significant interaction between social condition and type of communicative production. Specifically, only simultaneous pointing-speech combinations increased in frequency during the available condition compared to baseline, while no differences were found for speech-only and pointing-only productions. Moreover, simultaneous pointing-speech combinations in the available condition at 12 months positively correlated with lexical and grammatical development at 18 months of age. The ability to selectively use this multimodal communicative strategy to engage the adult in joint attention by drawing his attention toward an unseen event or object reveals 12-month-olds' clear understanding of referential cues that are relevant for language development. This strategy to successfully initiate and maintain joint attention is related to language development as it increases learning opportunities from social interactions.

  7. Hypoglossal nerve stimulation improves obstructive sleep apnea: 12-month outcomes.

    PubMed

    Kezirian, Eric J; Goding, George S; Malhotra, Atul; O'Donoghue, Fergal J; Zammit, Gary; Wheatley, John R; Catcheside, Peter G; Smith, Philip L; Schwartz, Alan R; Walsh, Jennifer H; Maddison, Kathleen J; Claman, David M; Huntley, Tod; Park, Steven Y; Campbell, Matthew C; Palme, Carsten E; Iber, Conrad; Eastwood, Peter R; Hillman, David R; Barnes, Maree

    2014-02-01

    Reduced upper airway muscle activity during sleep is a key contributor to obstructive sleep apnea pathogenesis. Hypoglossal nerve stimulation activates upper airway dilator muscles, including the genioglossus, and has the potential to reduce obstructive sleep apnea severity. The objective of this study was to examine the safety, feasibility and efficacy of a novel hypoglossal nerve stimulation system (HGNS; Apnex Medical, St Paul, MN, USA) in treating obstructive sleep apnea at 12 months following implantation. Thirty-one subjects (35% female, age 52.4 ± 9.4 years) with moderate to severe obstructive sleep apnea and unable to tolerate positive airway pressure underwent surgical implantation and activation of the hypoglossal nerve stimulation system in a prospective single-arm interventional trial. Primary outcomes were changes in obstructive sleep apnea severity (apnea-hypopnea index, from in-laboratory polysomnogram) and sleep-related quality of life [Functional Outcomes of Sleep Questionnaire (FOSQ)]. Hypoglossal nerve stimulation was used on 86 ± 16% of nights for 5.4 ± 1.4 h per night. There was a significant improvement (P < 0.001) from baseline to 12 months in apnea-hypopnea index (45.4 ± 17.5 to 25.3 ± 20.6 events h(-1) ) and Functional Outcomes of Sleep Questionnaire score (14.2 ± 2.0 to 17.0 ± 2.4), as well as other polysomnogram and symptom measures. Outcomes were stable compared with 6 months following implantation. Three serious device-related adverse events occurred: an infection requiring device removal; and two stimulation lead cuff dislodgements requiring replacement. There were no significant adverse events with onset later than 6 months following implantation. Hypoglossal nerve stimulation demonstrated favourable safety, feasibility and efficacy.

  8. Evaluation of tumor-derived MRI-texture features for discrimination of molecular subtypes and prediction of 12-month survival status in glioblastoma

    PubMed Central

    Yang, Dalu; Rao, Ganesh; Martinez, Juan; Veeraraghavan, Ashok; Rao, Arvind

    2015-01-01

    Purpose: Glioblastoma multiforme (GBM) is the most common and aggressive primary brain cancer. Four molecular subtypes of GBM have been described but can only be determined by an invasive brain biopsy. The goal of this study is to evaluate the utility of texture features extracted from magnetic resonance imaging (MRI) scans as a potential noninvasive method to characterize molecular subtypes of GBM and to predict 12-month overall survival status for GBM patients. Methods: The authors manually segmented the tumor regions from postcontrast T1 weighted and T2 fluid-attenuated inversion recovery (FLAIR) MRI scans of 82 patients with de novo GBM. For each patient, the authors extracted five sets of computer-extracted texture features, namely, 48 segmentation-based fractal texture analysis (SFTA) features, 576 histogram of oriented gradients (HOGs) features, 44 run-length matrix (RLM) features, 256 local binary patterns features, and 52 Haralick features, from the tumor slice corresponding to the maximum tumor area in axial, sagittal, and coronal planes, respectively. The authors used an ensemble classifier called random forest on each feature family to predict GBM molecular subtypes and 12-month survival status (a dichotomized version of overall survival at the 12-month time point indicating if the patient was alive or not at 12 months). The performance of the prediction was quantified and compared using receiver operating characteristic (ROC) curves. Results: With the appropriate combination of texture feature set, image plane (axial, coronal, or sagittal), and MRI sequence, the area under ROC curve values for predicting different molecular subtypes and 12-month survival status are 0.72 for classical (with Haralick features on T1 postcontrast axial scan), 0.70 for mesenchymal (with HOG features on T2 FLAIR axial scan), 0.75 for neural (with RLM features on T2 FLAIR axial scan), 0.82 for proneural (with SFTA features on T1 postcontrast coronal scan), and 0.69 for 12

  9. Gist extraction and sleep in 12-month-old infants.

    PubMed

    Konrad, Carolin; Herbert, Jane S; Schneider, Silvia; Seehagen, Sabine

    2016-10-01

    Gist extraction is the process of excerpting shared features from a pool of new items. The present study examined sleep and the consolidation of gist in 12-month-old infants using a deferred imitation paradigm. Sixty infants were randomly assigned to a nap, a no-nap or a baseline control condition. In the nap and no-nap conditions, infants watched demonstrations of the same target actions on three different hand puppets that shared some features. During a 4-h delay, infants in the nap condition took a naturally scheduled nap while infants in the no-nap condition naturally stayed awake. Afterwards, infants were exposed to a novel forth hand puppet that combined some of the features from the previously encountered puppets. Only those infants who took a nap after learning produced a significantly higher number of target actions than infants in the baseline control condition who had not seen any demonstrations of target actions. Infants in the nap condition also produced significantly more target actions than infants in the no-nap condition. Sleep appears to support the storage of gist, which aids infants in applying recently acquired knowledge to novel circumstances.

  10. Post-thoracotomy pain syndrome and sensory disturbances following thoracotomy at 6- and 12-month follow-ups

    PubMed Central

    Hetmann, Fredrik; Kongsgaard, Ulf E; Sandvik, Leiv; Schou-Bredal, Inger

    2017-01-01

    Background Persistent pain affects a large proportion of patients after thoracotomy and is associated with sensory disturbances. The objective of this prospective study was to investigate the time course of pain and sensory disturbances over a 12-month period. Methods Patients scheduled for thoracotomy were recruited. Data were collected on the day before surgery, including baseline characteristics and the presence of any preoperative pain. At 6- and 12-month follow-ups, data on pain were collected using the Brief Pain Inventory-Short Form, and perceived sensory disturbances around the thoracotomy scar were recorded from a self-exploration test. Results At 12 months after surgery, 97 patients had complete data including baseline and 6-and 12-month measurements. Almost half of the patients reported post-thoracotomy pain at the follow-ups. However, 20% of the patients not reporting post-thoracotomy pain at 6 months did report it at 12 months. Between 40% and 60% of patients experienced some kind of sensory disturbance at 6 months. A small decline in some kind of sensory disturbance was reported by 20%–50% of patients at 12 months. Conclusion A proportion of patients experienced either resolved or delayed onset of pain. Sensory changes were strongly associated with post-thoracotomy pain syndrome, but were also present in a large proportion of patients without it. PMID:28356766

  11. Factors that can predict pain with walking, 12 months after total knee arthroplasty

    PubMed Central

    Lindberg, Maren Falch; Miaskowski, Christine; RustøEn, Tone; Rosseland, Leiv Arne; Cooper, Bruce A; Lerdal, Anners

    2016-01-01

    Background and purpose — Functional limitations after total knee arthroplasty (TKA) are common. In this longitudinal study, we wanted to identify subgroups of patients with distinct trajectories of pain-related interference with walking during the first year after TKA and to determine which demographic, clinical, symptom-related, and psychological characteristics were associated with being part of this subgroup. Patients and methods — Patients scheduled for primary TKA for osteoarthritis (n = 202) completed questionnaires that evaluated perception of pain, fatigue, anxiety, depression, and illness on the day before surgery. Clinical characteristics were obtained from the medical records. Interference of pain with walking was assessed preoperatively, on postoperative day 4, and at 6 weeks, 3 months, and 12 months after TKA. Results — Using growth mixture modeling, 2 subgroups of patients were identified with distinct trajectories of pain-related interference with walking over time. Patients in the Continuous Improvement class (n = 157, 78%) had lower preoperative interference scores and reported a gradual decline in pain-related interference with walking over the first 12 months after TKA. Patients in the Recurrent Interference class (n = 45, 22%) reported a high degree of preoperative pain-related interference with walking, initial improvement during the first 3 months after TKA, and then a gradual increase—returning to preoperative levels at 12 months. Patients in the Recurrent Interference class had higher preoperative pain, fatigue, and depression scores, and poorer perception of illness than the Continuous Improvement class. Interpretation — 1 in 5 patients did not improve in pain-related interference with walking at 12 months after TKA. Future studies should test the efficacy of interventions designed to modify preoperative characteristics. PMID:27658970

  12. Factors that can predict pain with walking, 12 months after total knee arthroplasty.

    PubMed

    Lindberg, Maren Falch; Miaskowski, Christine; RustøEn, Tone; Rosseland, Leiv Arne; Cooper, Bruce A; Lerdal, Anners

    2016-12-01

    Background and purpose - Functional limitations after total knee arthroplasty (TKA) are common. In this longitudinal study, we wanted to identify subgroups of patients with distinct trajectories of pain-related interference with walking during the first year after TKA and to determine which demographic, clinical, symptom-related, and psychological characteristics were associated with being part of this subgroup. Patients and methods - Patients scheduled for primary TKA for osteoarthritis (n = 202) completed questionnaires that evaluated perception of pain, fatigue, anxiety, depression, and illness on the day before surgery. Clinical characteristics were obtained from the medical records. Interference of pain with walking was assessed preoperatively, on postoperative day 4, and at 6 weeks, 3 months, and 12 months after TKA. Results - Using growth mixture modeling, 2 subgroups of patients were identified with distinct trajectories of pain-related interference with walking over time. Patients in the Continuous Improvement class (n = 157, 78%) had lower preoperative interference scores and reported a gradual decline in pain-related interference with walking over the first 12 months after TKA. Patients in the Recurrent Interference class (n = 45, 22%) reported a high degree of preoperative pain-related interference with walking, initial improvement during the first 3 months after TKA, and then a gradual increase-returning to preoperative levels at 12 months. Patients in the Recurrent Interference class had higher preoperative pain, fatigue, and depression scores, and poorer perception of illness than the Continuous Improvement class. Interpretation - 1 in 5 patients did not improve in pain-related interference with walking at 12 months after TKA. Future studies should test the efficacy of interventions designed to modify preoperative characteristics.

  13. Beneficial effects of multisensory and cognitive stimulation in institutionalized elderly: 12-months follow-up.

    PubMed

    de Macedo, Liliane Dias E Dias; De Oliveira, Thaís Cristina Galdino; Soares, Fernanda Cabral; Bento-Torres, João; Bento-Torres, Natáli Valim Oliver; Anthony, Daniel Clive; Picanço-Diniz, Cristovam Wanderley

    2015-01-01

    We previously demonstrated the beneficial effects of a multisensory and cognitive stimulation program, consisting of 48 sessions, twice a week, to improve the cognition of elderly subjects living either in long-term care institutions (institutionalized - I) or in communities with their families (noninstitutionalized - NI). In the present study, we evaluated these subjects after the end of the intervention and compared the rate of age-related cognitive decline of those living in an enriched community environment (NI group, n=15, 74.1±3.9 years old) with those living in the impoverished environment of long-term care institutions (I group, n=20, 75.1±6.8 years old). Both groups participated fully in our stimulation program. Over 1 year, we conducted revaluations at five time points (2 months, 4 months, 6 months, 8 months, and 12 months) after the completion of the intervention. Both elderly groups were evaluated with the mini-mental state examination and selected language tests. Progressive cognitive decline was observed in both groups over the period. Indeed, it took only 4-6 months after the end of the stimulation program for significant reductions in language test scores to become apparent. However, earlier reductions in test scores were mainly associated with I group, and linguistic prosody test scores were significantly affected by institutionalization and time, two variables that interacted and reduced these scores. Moreover, I group reduced the Montréal cognitive assessment battery language tests scores 4 months before NI group. It remains to be investigated what mechanisms may explain the earlier and more intense language losses in institutionalized elderly.

  14. Beneficial effects of multisensory and cognitive stimulation in institutionalized elderly: 12-months follow-up

    PubMed Central

    Dias E Dias de Macedo, Liliane; De Oliveira, Thaís Cristina Galdino; Soares, Fernanda Cabral; Bento-Torres, João; Bento-Torres, Natáli Valim Oliver; Anthony, Daniel Clive; Picanço-Diniz, Cristovam Wanderley

    2015-01-01

    We previously demonstrated the beneficial effects of a multisensory and cognitive stimulation program, consisting of 48 sessions, twice a week, to improve the cognition of elderly subjects living either in long-term care institutions (institutionalized – I) or in communities with their families (noninstitutionalized – NI). In the present study, we evaluated these subjects after the end of the intervention and compared the rate of age-related cognitive decline of those living in an enriched community environment (NI group, n=15, 74.1±3.9 years old) with those living in the impoverished environment of long-term care institutions (I group, n=20, 75.1±6.8 years old). Both groups participated fully in our stimulation program. Over 1 year, we conducted revaluations at five time points (2 months, 4 months, 6 months, 8 months, and 12 months) after the completion of the intervention. Both elderly groups were evaluated with the mini-mental state examination and selected language tests. Progressive cognitive decline was observed in both groups over the period. Indeed, it took only 4–6 months after the end of the stimulation program for significant reductions in language test scores to become apparent. However, earlier reductions in test scores were mainly associated with I group, and linguistic prosody test scores were significantly affected by institutionalization and time, two variables that interacted and reduced these scores. Moreover, I group reduced the Montréal cognitive assessment battery language tests scores 4 months before NI group. It remains to be investigated what mechanisms may explain the earlier and more intense language losses in institutionalized elderly. PMID:26316730

  15. Postoperative stability for surgery-first approach using intraoral vertical ramus osteotomy: 12 month follow-up.

    PubMed

    Kim, Jun-Young; Jung, Hwi-Dong; Kim, Sang Yoon; Park, Hyung-Sik; Jung, Young-Soo

    2014-07-01

    The aim of this study was to evaluate the postoperative stability of the surgery-first approach using intraoral vertical ramus osteotomy (IVRO). We retrospectively studied a sample derived from the patients who were treated by the surgery-first approach using a LeFort I osteotomy and IVRO for correction of class III dentofacial deformity from 2008 to 2012. Lateral cephalograms taken preoperatively and 2 days, 6 months, and 12 months postoperatively were traced, and the skeletal and dental variables at different time points were analysed. The study sample comprised 37 subjects, mean (SD) age 23 (4) years. The mean (SD) total duration of treatment including postoperative orthodontics was 14 (6) months, and surgical movement of the maxillary A point was 0.75 (1.3)mm anteriorly, and 0.21 (1.79)mm superiorly. The surgical change in the position of the maxillary first molar was 1.01 (1.57)mm superiorly. The mean (SD) movement of mandible was 11.15 (5.4)mm posteriorly at pogonion and 1.02 (1.79)mm inferiorly at menton. There were no significant change in maxillary skeletal variables during the first year postoperative period. The surgical relapse of mandible at pogonion was 0.63 (2.31) mm anteriorly (p=0.01), however, the relapse in superior direction at menton was 2.86 (1.39) mm with statistical significance (p=0.01). The total duration of orthodontic treatment with surgery-first was roughly 5 months shorter than conventional preoperative and postoperative orthodontic treatment. The surgery-first approach using IVRO is effective and predictable, and shortens the overall duration of treatment. Anterior relapse of the mandible was less than 1mm, and increased superior relapse can be compensated for with appropriate preoperative planning to provide a reliable outcome. This study was limited to 12 months' follow-up, and a long term follow-up study is indicated.

  16. Validity of 12-Month Falls Recall in Community-Dwelling Older Women Participating in a Clinical Trial.

    PubMed

    Sanders, Kerrie M; Stuart, Amanda L; Scott, David; Kotowicz, Mark A; Nicholson, Geoff C

    2015-01-01

    Objectives. To compare 12-month falls recall with falls reported prospectively on daily falls calendars in a clinical trial of women aged ≥70 years. Methods. 2,096 community-dwelling women at high risk of falls and/or fracture completed a daily falls calendar and standardised interviews when falls were recorded, for 12 months. Data were compared to a 12-month falls recall question that categorised falls status as "no falls," "a few times," "several," and "regular" falls. Results. 898 (43%) participants reported a fall on daily falls calendars of whom 692 (77%) recalled fall(s) at 12 months. Participants who did not recall a fall were older (median 79.3 years versus 77.8 years, P = 0.028). Smaller proportions of fallers who sustained an injury or accessed health care failed to recall a fall (all P < 0.04). Among participants who recalled "no fall," 85% reported zero falls on daily calendars. Few women selected falls categories of "several times" or "regular" (4.1% and 0.4%, resp.) and the sensitivity of these categories was low (30% to 33%). Simply categorising participants into fallers or nonfallers had 77% sensitivity and 94% specificity. Conclusion. For studies where intensive ascertainment of falls is not feasible, 12-month falls recall questions with fewer responses may be an acceptable alternative.

  17. Effects of a 12-Month Pedometer-Based Walking Intervention in Women of Low Socioeconomic Status

    PubMed Central

    Hornbuckle, Lyndsey M.; Kingsley, J. Derek; Kushnick, Michael R.; Moffatt, Robert J.; Haymes, Emily M.; Miles, Rebecca; Toole, Tonya; Panton, Lynn B.

    2016-01-01

    This study examined the effects of a 12-month walking intervention in overweight/obese, low socioeconomic women. Forty-six women (48.2 ± 8.0 years) entered the study. Outcomes included weight, waist and hip circumferences, body mass index (BMI), blood pressure, glycosylated hemoglobin, blood lipids, fibrinogen, and high-sensitivity C-reactive protein (hsCRP). Both intention-to-treat analyses in all participants and group analyses in study completers only (3K group = increased steps/day by ≥3,000; No Δ group = did not increase steps/day by ≥3,000) were conducted. Group × time ANOVA was used. In study completers, 3K significantly increased steps/day (6,903 ± 3,328 to 12,323 ± 5,736) compared to No Δ (4,926 ± 3,374 to 5,174 ± 3,095) from baseline to 12 months. There was a significant time effect for weight (P = 0.030), BMI (P = 0.029), and hsCRP (P = 0.044). Low socioeconomic women who adhere to a long-term, pedometer-based walking intervention significantly increased steps/day and may improve body weight, BMI, and hsCRP. This could help reduce health disparities in this population over time. PMID:27746679

  18. Laser Pulpotomy–An Effective Alternative to Conventional Techniques: A 12 Months Clinicoradiographic Study

    PubMed Central

    Rana, Vivek; Srivastava, Nikhil; Chandna, Preetika

    2015-01-01

    ABSTRACT Background: Vital pulpotomy is a single-stage procedure of surgical amputation of the coronal portion of exposed vital pulp, usually as a means of preserving the vitality and function of the remaining radicular portion. Aims and objectives: The aim of this study was to compare the clinical and radiographic success rates for ferric sulfate (FS), electrosurgery (ES) and laser pulpotomy in human primary molars. Materials and methods: In a randomized clinical trial, 30 primary molars indicated for pulpotomy in children aged 4 to 10 years were treated using either a FS (10 teeth), ES technique (10 teeth) and laser (10 teeth). Following the pulpotomy, the teeth were evaluated for clinical and radiographic success at 3, 6, 9 and 12 months on the basis of the presence of pain, sinus, mobility, internal and external resorption, periapical radiolucency, calcification in the canal and bone loss. Statistical analysis: The data were assessed with Chi-square test. Results: After 12 months of follow-up, both clinical and radiographic success rates were 100% in the laser group but only 80% in both ES and FS groups. There was statistically significant difference between the success rates of three groups (p < 0.05). Conclusion: Laser pulpotomy showed better clinical as well as radiographical results than ES and FS pulpotomy. Laser pulpotomy was also found superior in terms of operating time, patient cooperation, ease of use and pain. Although results of the study showed the failure rates for electrosurgical pulpotomy to be equal to those for FS pulpotomy, electrosurgical pulpotomy being a nonpharmacological technique considered more favorable. Further studies using larger sample size and longer evaluation periods are suggested. How to cite this article: Gupta G, Rana V, Srivastava N, Chandna P. Laser Pulpotomy–An Effective Alternative to Conventional Techniques: A 12 Months Clinicoradiographic Study. Int J Clin Pediatr Dent 2015;8(1):18-21. PMID:26124576

  19. 76 FR 62213 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the Mohave...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-06

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the Mohave ground squirrel (Spermophilus mohavensis) as endangered or threatened under the Endangered Species Act of 1973, as amended (Act). After review of the best available scientific and commercial information, we find that listing the Mohave ground squirrel is not warranted at this time.......

  20. Video Analysis of Sensory-Motor Features in Infants with Fragile X Syndrome at 9-12 Months of Age

    ERIC Educational Resources Information Center

    Baranek, Grace T.; Danko, Cassandra D.; Skinner, Martie L.; Donald B., Jr.; Hatton, Deborah D.; Roberts, Jane E.; Mirrett, Penny L.

    2005-01-01

    This study utilized retrospective video analysis to distinguish sensory-motor patterns in infants with fragile X syndrome (FXS) (n=11) from other infants [i.e., autism (n=11), other developmental delay (n=10), typical (n=11)] at 9-12 months of age. Measures of development, autistic features, and FMRP were assessed at the time of entry into the…

  1. Infant Development: Milestones from 10 to 12 Months

    MedlinePlus

    ... did the first time. Turn on the tunes. Music can help soothe, entertain and teach your baby. Try calming lullabies, upbeat children's songs, classical music or your own favorites. Help your baby handle ...

  2. Cost of Living with Parkinson's Disease over 12 Months in Australia: A Prospective Cohort Study

    PubMed Central

    Abimanyi-Ochom, Julie; Lane, Lisa; Murphy, Anna T.; Morris, Meg E.; Iansek, Robert

    2017-01-01

    Background. Parkinson disease (PD) is a costly chronic condition in terms of managing both motor and nonmotor symptoms. The burden of disease is high for individuals, caregivers, and the health system. The aim of this study is to estimate the annual cost of PD from the household, health system, and societal perspectives. Methods. A prospective cohort study of newly referred people with PD to a specialist PD clinic in Melbourne, Australia. Participants completed baseline and monthly health resource use questionnaires and Medicare data were collected over 12 months. Results. 87 patients completed the 12-month follow-up assessments. The mean annual cost per person to the health care system was $32,556 AUD. The burden to society was an additional $45,000 per annum per person with PD. The largest component of health system costs were for hospitalisation (69% of total costs). The costs for people with moderate to severe disease were almost 4 times those with mild PD ($63,569 versus $17,537 p < 0.001). Conclusion. PD is associated with significant costs to individuals and to society. Costs escalated with disease severity suggesting that the burden to society is likely to grow with the increasing disease prevalence that is associated with population ageing. PMID:28352490

  3. Cost of Living with Parkinson's Disease over 12 Months in Australia: A Prospective Cohort Study.

    PubMed

    Bohingamu Mudiyanselage, Shalika; Watts, Jennifer J; Abimanyi-Ochom, Julie; Lane, Lisa; Murphy, Anna T; Morris, Meg E; Iansek, Robert

    2017-01-01

    Background. Parkinson disease (PD) is a costly chronic condition in terms of managing both motor and nonmotor symptoms. The burden of disease is high for individuals, caregivers, and the health system. The aim of this study is to estimate the annual cost of PD from the household, health system, and societal perspectives. Methods. A prospective cohort study of newly referred people with PD to a specialist PD clinic in Melbourne, Australia. Participants completed baseline and monthly health resource use questionnaires and Medicare data were collected over 12 months. Results. 87 patients completed the 12-month follow-up assessments. The mean annual cost per person to the health care system was $32,556 AUD. The burden to society was an additional $45,000 per annum per person with PD. The largest component of health system costs were for hospitalisation (69% of total costs). The costs for people with moderate to severe disease were almost 4 times those with mild PD ($63,569 versus $17,537 p < 0.001). Conclusion. PD is associated with significant costs to individuals and to society. Costs escalated with disease severity suggesting that the burden to society is likely to grow with the increasing disease prevalence that is associated with population ageing.

  4. Sibling Interaction of Children with Autism: Development over 12 Months

    ERIC Educational Resources Information Center

    Knott, Fiona; Lewis, Charlie; Williams, Tim

    2007-01-01

    While deficits in social interaction are central to autism, the sibling relationship has been found to provide a key medium for the development of such skills. Naturalistic observations of sibling pairs including children with autism and controls with Down syndrome were made across two time periods, twelve months apart. Consistent with the…

  5. Health-related quality of life and functional changes in DMD: A 12-month longitudinal cohort study

    PubMed Central

    Messina, Sonia; Vita, Gian Luca; Sframeli, Maria; Mondello, Stefania; Mazzone, Elena; D'Amico, Adele; Berardinelli, Angela; La Rosa, Matteo; Bruno, Claudio; Distefano, Maria Grazia; Baranello, Giovanni; Barcellona, Costanza; Scutifero, Marianna; Marcato, Sonia; Palmieri, Arianna; Politano, Luisa; Morandi, Lucia; Mongini, Tiziana; Pegoraro, Elena; D'Angelo, Maria Grazia; Pane, Marika; Rodolico, Carmelo; Minetti, Carlo; Bertini, Enrico; Vita, Giuseppe; Mercuri, Eugenio

    2016-01-01

    In Duchenne muscular dystrophy (DMD) little has been reported on the association between clinical outcome measures and patient health-related quality of life (HRQOL) tools. Our study evaluated the relationship between 12 month changes on the Generic Core Scales (GCS), the Multidimensional Fatigue Scale and the Neuromuscular Module of the PedsQLTM with several outcome measures (6 minute walk test, North Star Ambulatory Assessment and timed items) in ambulatory DMD. Ninety-eight ambulatory DMD in a multicentric setting were included in the study. At baseline, the PedsQLTM inventories correlated with almost all the functional measures On the Child Self-Report there was a significant decrease between baseline and 12 months on the PedsQLTM GCS and its first domain, in parallel with the decrement in the functional outcome measures. Correlation between the 12 month changes on the PedsQLTM inventories and functional measures were almost all negligible. Similar results were obtained on the Parent Proxy-Report. In conclusion, PedsQLTM correlates with the level of impairment at baseline, but this does not hold true when 12 month changes are considered. Further studies comparing different tools are needed to better elucidate the complexity of the relationship between HRQOL and functional performances. PMID:26916554

  6. Weight loss effects from vegetable intake: a 12-month randomised controlled trial

    PubMed Central

    Tapsell, L C; Batterham, M J; Thorne, R L; O'Shea, J E; Grafenauer, S J; Probst, Y C

    2014-01-01

    Background/Objectives: Direct evidence for the effects of vegetable intake on weight loss is qualified. The study aimed to assess the effect of higher vegetable consumption on weight loss. Subjects/Methods: A single blind parallel controlled trial was conducted with 120 overweight adults (mean body mass index=29.98 kg/m2) randomised to two energy deficit healthy diet advice groups differing only by doubling the serving (portion) sizes of vegetables in the comparator group. Data were analysed as intention-to-treat using a linear mixed model. Spearmans rho bivariate was used to explore relationships between percentage energy from vegetables and weight loss. Results: After 12 months, the study sample lost 6.5±5.2 kg (P<0.001 time) with no difference between groups (P>0.05 interaction). Both groups increased vegetable intake and lost weight in the first 3 months, and the change in weight was significantly correlated with higher proportions of energy consumed as vegetables (rho=–0.217, P=0.024). Fasting glucose, insulin and triglyceride levels decreased (P<0.001 time) and high-density lipoprotein cholesterol levels increased (P<0.001 time), with no difference between groups. Weight loss was sustained for 12 months by both groups, but the comparator group reported greater hunger satisfaction (P=0.005). Conclusions: Advice to consume a healthy low-energy diet leads to sustained weight loss, with reductions in cardiovascular disease risk factors regardless of an emphasis on more vegetables. In the short term, consuming a higher proportion of the dietary energy as vegetables may support a greater weight loss and the dietary pattern appears sustainable. PMID:24667750

  7. 26 CFR 1.443-1 - Returns for periods of less than 12 months.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... the short period is as follows: Taxable income exclusive of net long-term capital gain $40,000 Net long-term capital gain 10,000 Taxable income for short period before annualizing 50,000 Taxable income... term “12-month period” means the 12-month period ending at the close of the last day of the...

  8. The Development of Rational Imitation in 9- and 12-Month-Old Infants

    ERIC Educational Resources Information Center

    Zmyj, Norbert; Daum, Moritz M.; Aschersleben, Gisa

    2009-01-01

    Studies on rational imitation have provided evidence for the fact that infants as young as 12 months of age engage in rational imitation. However, the developmental onset of this ability is unclear. In this study, we investigated whether 9- and 12-month-olds detect voluntary and implicit as well as nonvoluntary and explicit constraints in the head…

  9. The Origins of 12-Month Attachment: A Microanalysis of 4-Month Mother-Infant Interaction

    PubMed Central

    Beebe, Beatrice; Jaffe, Joseph; Markese, Sara; Buck, Karen; Chen, Henian; Cohen, Patricia; Bahrick, Lorraine; Andrews, Howard; Feldstein, Stanley

    2013-01-01

    A detailed microanalysis of 4-month mother-infant face-to-face communication revealed a fine-grained specification of essential communication processes that predicted 12-month insecure attachment outcomes, particularly resistant and disorganized classifications. An urban community sample of 84 dyads were videotaped at 4 months during a face-to-face interaction, and at 12 months during the Ainsworth Strange Situation. Four-month mother and infant communication modalities of attention, affect, touch, and spatial orientation were coded from split-screen videotape on a 1s time base; mother and infant facial-visual “engagement” variables were constructed. We used contingency measures (multi-level time-series modeling) to examine the dyadic temporal process over time, and specific rates of qualitative features of behavior to examine the content of behavior. Self-contingency (auto-correlation) measured the degree of stability/lability within an individual’s own rhythms of behavior; interactive contingency (lagged cross-correlation) measured adjustments of the individual’s behavior that were correlated with the partner’s previous behavior. We documented that both self- and interactive contingency, as well as specific qualitative features, of mother and infant behavior were mechanisms of attachment formation by 4 months, distinguishing 12-month insecure, resistant, and disorganized attachment classifications from secure; avoidant were too few to test. All communication modalities made unique contributions. The separate analysis of different communication modalities identified intermodal discrepancies or conflict, both intrapersonal and interpersonal, that characterized insecure dyads. Contrary to dominant theories in the literature on face-to-face interaction, measures of maternal contingent coordination with infant yielded the fewest associations with 12-month attachment, whereas mother and infant self-contingency, and infant contingent coordination with mother

  10. The origins of 12-month attachment: a microanalysis of 4-month mother-infant interaction.

    PubMed

    Beebe, Beatrice; Jaffe, Joseph; Markese, Sara; Buck, Karen; Chen, Henian; Cohen, Patricia; Bahrick, Lorraine; Andrews, Howard; Feldstein, Stanley

    2010-01-01

    A microanalysis of 4-month mother-infant face-to-face communication revealed a fine-grained specification of communication processes that predicted 12-month insecure attachment outcomes, particularly resistant and disorganized classifications. An urban community sample of 84 dyads were videotaped at 4 months during a face-to-face interaction, and at 12 months during the Ainsworth Strange Situation. Four-month mother and infant communication modalities of attention, affect, touch, and spatial orientation were coded from split-screen videotape on a 1 s time base; mother and infant facial-visual "engagement" variables were constructed. We used contingency measures (multi-level time-series modeling) to examine the dyadic temporal process over time, and specific rates of qualitative features of behavior to examine the content of behavior. Self-contingency (auto-correlation) measured the degree of stability/lability within an individual's own rhythms of behavior; interactive contingency (lagged cross-correlation) measured adjustments of the individual's behavior that were correlated with the partner's previous behavior. We documented that both self- and interactive contingency, as well as specific qualitative features, of mother and infant behavior were mechanisms of attachment formation by 4 months, distinguishing 12-month insecure, resistant, and disorganized attachment classifications from secure; avoidant were too few to test. All communication modalities made unique contributions. The separate analysis of different communication modalities identified intermodal discrepancies or conflict, both intrapersonal and interpersonal, that characterized insecure dyads. Contrary to dominant theories in the literature on face-to-face interaction, measures of maternal contingent coordination with infant yielded the fewest associations with 12-month attachment, whereas mother and infant self-contingency, and infant contingent coordination with mother, yielded comparable numbers

  11. Outcome of anthroposophic medication therapy in chronic disease: A 12-month prospective cohort study

    PubMed Central

    Hamre, Harald J; Witt, Claudia M; Glockmann, Anja; Ziegler, Renatus; Kienle, Gunver S; Willich, Stefan N; Kiene, Helmut

    2008-01-01

    Background Anthroposophic medications (AMED) are prescribed in 56 countries. Objective To study clinical outcomes in patients prescribed AMED for chronic disease. Design Prospective cohort study. Setting 110 medical practices in Germany. Participants 665 consecutive outpatients aged 1–71 years, prescribed AMED for mental, respiratory, musculoskeletal, neurological, genitourinary, and other chronic diseases. Main outcomes Disease and Symptom Scores (physicians’ and patients’ assessment, 0–10) and SF-36. Results During the first six months, an average of 1.5 AMED per patient was used, in total 652 different AMED. Origin of AMED was mineral (8.0% of 652 AMED), botanical (39.0%), zoological (7.2%), chemically defined (13.0%), and mixed (33.0%). From baseline to six-month-follow-up, all outcomes improved significantly: Disease Score improved by mean 3.15 points (95% confidence interval 2.97–3.34, p < 0.001), Symptom Score by 2.43 points (2.23–2.63, p < 0.001), SF-36 Physical Component Summary by 3.04 points (2.16–3.91, p < 0.001), and SF-36 Mental Component Summary by 5.75 points (4.59–6.92, p < 0.001). All improvements were maintained at 12-month follow-up. Improvements were similar in adult men and women, in children, and in patients not using adjunctive therapies. Conclusion Outpatients using AMED for chronic disease had long-term reduction of disease severity and improvement of quality of life. PMID:19920891

  12. Early adolescents' perceptions of their mother's anxious parenting as a predictor of anxiety symptoms 12 months later.

    PubMed

    Rapee, Ronald M

    2009-11-01

    Parental overprotection and modeling of fearful behaviors have been proposed to play a central role in the development of anxiety. Yet there have been few longitudinal examinations of these relationships and virtually none focusing on the adolescent period. The current study measured adolescent perceptions of maternal anxious parenting (a combination of overprotection and expression of anxiety), mothers' levels of anxiousness, and adolescents' anxiety symptoms in 421 girls in grade 7 and their mothers. Measures were repeated 12 months later. When the adolescent's self report of anxiety was used as the outcome, the adolescent's perception of maternal anxious parenting significantly predicted adolescent anxiety 12 months later. When the mother's report of adolescent anxiety was used as the outcome adolescent anxiety significantly predicted adolescent perceptions of maternal anxious parenting 12 months later. Maternal anxiousness predicted the adolescent's perception of anxious parenting, but meditational relationships were not significant in either model. The data are partly consistent with reciprocal influence models of parent/child relationships but point to the importance of informant perspectives in determining relationships between these complex variables.

  13. 76 FR 61895 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-05

    ...We, the U.S. Fish and Wildlife Service, announce a 12-month finding on a petition to list the northern leopard frog (Lithobates (=Rana) pipiens) under the Endangered Species Act of 1973, as amended (Act). After review of the best scientific and commercial information, we find that listing the northern leopard frog is not warranted at this time. However, we ask the public to submit to us any......

  14. Unexpected Arrest-Related Deaths in America: 12 Months of Open Source Surveillance

    PubMed Central

    Ho, Jeffrey D.; Heegaard, William G.; Dawes, Donald M.; Natarajan, Sridhar; Reardon, Robert F.; Miner, James R.

    2009-01-01

    Introduction: Sudden, unexpected arrest-related death (ARD) has been associated with drug abuse, extreme delirium or certain police practices. There is insufficient surveillance and causation data available. We report 12 months of surveillance data using a novel data collection methodology. Methods: We used an open-source, prospective method to collect 12 consecutive months of data, including demographics, behavior, illicit substance use, control methods used, and time of collapse after law enforcement contact. Descriptive analysis and chi-square testing were applied. Results: There were 162 ARD events reported that met inclusion criteria. The majority were male with mean age 36 years, and involved bizarre, agitated behavior and reports of drug abuse just prior to death. Law enforcement control techniques included none (14%); empty-hand techniques (69%); intermediate weapons such as TASER® device, impact weapon or chemical irritant spray (52%); and deadly force (12%). Time from contact to subject collapse included instantaneous (13%), within the first hour (53%) and 1–48 hours (35%). Significant collapse time associations occurred with the use of certain intermediate weapons. Conclusion: This surveillance report can be a foundation for discussing ARD. These data support the premise that ARDs primarily occur in persons with a certain demographic and behavior profile that includes middle-aged males exhibiting agitated, bizarre behavior generally following illicit drug abuse. Collapse time associations were demonstrated with the use of TASER devices and impact weapons. We recommend further study in this area to validate our data collection method and findings. PMID:19561821

  15. Effect of vertebroplasty on pain relief, quality of life, and the incidence of new vertebral fractures: a 12-month randomized follow-up, controlled trial.

    PubMed

    Blasco, Jordi; Martinez-Ferrer, Angeles; Macho, Juan; San Roman, Luis; Pomés, Jaume; Carrasco, Josep; Monegal, Ana; Guañabens, Nuria; Peris, Pilar

    2012-05-01

    Uncertainty regarding the benefits of vertebroplasty (VP) for the treatment of acute osteoporotic vertebral fractures has recently arisen. A prospective, controlled, randomized single-center trial (ClinicalTrials.gov registration number NCT00994032) was designed to compare the effects of VP versus conservative treatment on the quality of life and pain in patients with painful osteoporotic vertebral fractures, new fractures and secondary adverse effects were also analyzed during a 12-month follow-up period. A total of 125 patients were randomly assigned to receive conservative treatment or VP. The primary end point was to compare the evolution of the quality of life (Quality of Life Questionnaire of the European Foundation for Osteoporosis [Qualeffo-41] and pain (Visual Analogue Scale [VAS]) during a 12 month follow-up. Secondary outcomes included comparison of analgesic consumption, clinical complications, and radiological vertebral fractures at the same time points. Both arms showed significant improvement in VAS scores at all time points, with greater improvement (p = 0.035) in the VP group at the 2-month follow-up. Significant improvement in Qualeffo total score was seen in the VP group throughout the study, whereas this was not seen in the conservative treatment arm until the 6-month follow-up. VP treatment was associated with a significantly increased incidence of vertebral fractures (odds ratio [OR], 2 · 78; 95% confidence interval [CI], 1.02-7.62, p = 0.0462). VP and conservative treatment are both associated with significant improvement in pain and quality of life in patients with painful osteoporotic vertebral fractures over a 1-year follow-up period. VP achieved faster pain relief with significant improvement in the pain score at the 2-month follow-up but was associated with a higher incidence in vertebral fractures.

  16. MINOS Timing and GPS Precise Point Positioning

    DTIC Science & Technology

    2012-01-01

    Minos Timing Spec • Neutrinos created in bunches separated by 19 ns • ~ 1 neutrino /day detected in Soudan Mine – 2 milliseconds travel time...Must know which bunch created the observed neutrino • Bunches are about 6 ns wide – To become 3.5 ns wide after planned upgrade in 2013

  17. Arctic tipping points: governance in turbulent times.

    PubMed

    Young, Oran R

    2012-02-01

    Interacting forces of climate change and globalization are transforming the Arctic. Triggered by a non-linear shift in sea ice, this transformation has unleashed mounting interest in opportunities to exploit the region's natural resources as well as growing concern about environmental, economic, and political issues associated with such efforts. This article addresses the implications of this transformation for governance, identifies limitations of existing arrangements, and explores changes needed to meet new demands. It advocates the development of an Arctic regime complex featuring flexibility across issues and adaptability over time along with an enhanced role for the Arctic Council both in conducting policy-relevant assessments and in promoting synergy in interactions among the elements of the emerging Arctic regime complex. The emphasis throughout is on maximizing the fit between the socioecological features of the Arctic and the character of the governance arrangements needed to steer the Arctic toward a sustainable future.

  18. Parents’ perceived treatment match and treatment retention over 12 months among youth in the LAMS study

    PubMed Central

    Young, Andrea S.; Horwitz, Sarah M.; Findling, Robert L.; Youngstrom, Eric A.; Arnold, L. Eugene; Fristad, Mary A.

    2015-01-01

    Objective The goal of these analyses was to describe the 12-month prevalence and identify predictors of mental health services retention for youth, ages 6–12 years, using data from the Longitudinal Assessment of Manic Symptoms (LAMS) study. Methods In a longitudinal cohort study, 416 children and their parents completed measures of mental health services use and parents’ perception of the services and semi-structured psychodiagnostic interviews at a baseline and 12-month assessment. Logistic regression analyses examined the effects of demographic and clinical variables and parents’ perception of how well their children’s treatment matched their needs on 12-month treatment retention. Results Sixty-nine percent of youth (n=289) continued to use services at 12 months. White race (p<.001) and greater functional impairment (p=.024) were associated with treatment retention; greater perceived treatment match at baseline significantly predicted retention above and beyond the effects of sociodemographic and clinical variables (p=.001). Conclusions White race and parents’ perceptions about appropriateness of treatment predict 12-month treatment retention. PMID:26522675

  19. Spatial Habitat Features Derived from Multiparametric Magnetic Resonance Imaging Data Are Associated with Molecular Subtype and 12-Month Survival Status in Glioblastoma Multiforme

    PubMed Central

    Lee, Joonsang; Narang, Shivali; Martinez, Juan; Rao, Ganesh; Rao, Arvind

    2015-01-01

    One of the most common and aggressive malignant brain tumors is Glioblastoma multiforme. Despite the multimodality treatment such as radiation therapy and chemotherapy (temozolomide: TMZ), the median survival rate of glioblastoma patient is less than 15 months. In this study, we investigated the association between measures of spatial diversity derived from spatial point pattern analysis of multiparametric magnetic resonance imaging (MRI) data with molecular status as well as 12-month survival in glioblastoma. We obtained 27 measures of spatial proximity (diversity) via spatial point pattern analysis of multiparametric T1 post-contrast and T2 fluid-attenuated inversion recovery MRI data. These measures were used to predict 12-month survival status (≤12 or >12 months) in 74 glioblastoma patients. Kaplan-Meier with receiver operating characteristic analyses was used to assess the relationship between derived spatial features and 12-month survival status as well as molecular subtype status in patients with glioblastoma. Kaplan-Meier survival analysis revealed that 14 spatial features were capable of stratifying overall survival in a statistically significant manner. For prediction of 12-month survival status based on these diversity indices, sensitivity and specificity were 0.86 and 0.64, respectively. The area under the receiver operating characteristic curve and the accuracy were 0.76 and 0.75, respectively. For prediction of molecular subtype status, proneural subtype shows highest accuracy of 0.93 among all molecular subtypes based on receiver operating characteristic analysis. We find that measures of spatial diversity from point pattern analysis of intensity habitats from T1 post-contrast and T2 fluid-attenuated inversion recovery images are associated with both tumor subtype status and 12-month survival status and may therefore be useful indicators of patient prognosis, in addition to providing potential guidance for molecularly-targeted therapies in

  20. Eccentric decline squat protocol offers superior results at 12 months compared with traditional eccentric protocol for patellar tendinopathy in volleyball players

    PubMed Central

    Young, M; Cook, J; Purdam, C; Kiss, Z; Alfredson, H

    2005-01-01

    Background: Conservative treatment of patellar tendinopathy has been minimally investigated. Effective validated treatment protocols are required. Methods: This was a prospective randomised controlled trial of 17 elite volleyball players with clinically diagnosed and imaging confirmed patellar tendinopathy. Participants were randomly assigned to one of two treatment groups: a decline group and a step group. The decline group were required to perform single leg squats on a 25° decline board, exercising into tendon pain and progressing their exercises with load. The step group performed single leg squats on a 10 cm step, exercising without tendon pain and progressing their exercises with speed then load. All participants completed a 12 week intervention programme during their preseason. Outcome measures used were the Victorian Institute of Sport Assessment (VISA) score for knee function and 100 mm visual analogue scale (VAS) for tendon pain with activity. Measures were taken throughout the intervention period and at 12 months. Results: Both groups had improved significantly from baseline at 12 weeks and 12 months. Analysis of the likelihood of a 20 point improvement in VISA score at 12 months revealed a greater likelihood of clinical improvements in the decline group than the step group. VAS scores at 12 months did not differ between the groups. Conclusions: Both exercise protocols improved pain and sporting function in volleyball players over 12 months. This study indicates that the decline squat protocol offers greater clinical gains during a rehabilitation programme for patellar tendinopathy in athletes who continue to train and play with pain. PMID:15665207

  1. Change in sexual activity 12 months after ART initiation among HIV-positive Mozambicans.

    PubMed

    Pearson, Cynthia R; Cassels, Susan; Kurth, Ann E; Montoya, Pablo; Micek, Mark A; Gloyd, Stephen S

    2011-05-01

    We assessed sexual behaviors before and 12-months after ART initiation among 277 Mozambicans attending an HIV clinic. Measured behaviors included the number of sexual partners, condom use, concurrent relationships, disclosure of HIV status, alcohol use, and partners' serostatus. Compared to before ART initiation, increases were seen 12 months after ART in the proportion of participants who were sexually active (48% vs. 64% respondents, P < 0.001) and the proportion of participants with HIV-negative or unknown serostatus partners (45% vs. 80%, P < 0.001). Almost all (96%) concurrent partnerships reported at 12 months formed after ART initiation. Although reported correct and consist condom use increased, the number of unprotected sexual relationships remained the same (n = 45). Non-disclosure of HIV-serostatus to sexual partners was the only significant predictor of practicing unprotected sex with partners of HIV-negative or unknown serostatus. Sexual activity among HIV-positive persons on ART increased 12 months after ART initiation. Ongoing secondary transmission prevention programs addressing sexual activity with multiple partners, disclosure to partners and consistent condom use with serodisconcordant partners must be incorporated throughout HIV care programs.

  2. FedEx Express Gasoline Hybrid Electric Delivery Truck Evaluation: 12-Month Report

    SciTech Connect

    Barnitt, R.

    2011-01-01

    This report summarizes the data obtained in a 12-month comparison of three gasoline hybrid electric delivery vehicles with three comparable diesel vehicles. The data show that there was no statistical difference between operating cost per mile of the two groups of vehicles. As expected, tailpipe emissions were considerably lower across all drive cycles for the gHEV than for the diesel vehicle.

  3. Change in Sexual Activity 12 Months After ART Initiation Among HIV-Positive Mozambicans

    PubMed Central

    Cassels, Susan; Kurth, Ann E.; Montoya, Pablo; Micek, Mark A.; Gloyd, Stephen S.

    2012-01-01

    We assessed sexual behaviors before and 12-months after ART initiation among 277 Mozambicans attending an HIV clinic. Measured behaviors included the number of sexual partners, condom use, concurrent relationships, disclosure of HIV status, alcohol use, and partners’ serostatus. Compared to before ART initiation, increases were seen 12 months after ART in the proportion of participants who were sexually active (48% vs. 64% respondents, P < 0.001) and the proportion of participants with HIV-negative or unknown serostatus partners (45% vs. 80%, P < 0.001). Almost all (96%) concurrent partnerships reported at 12 months formed after ART initiation. Although reported correct and consist condom use increased, the number of unprotected sexual relationships remained the same (n = 45). Non-disclosure of HIV-serostatus to sexual partners was the only significant predictor of practicing unprotected sex with partners of HIV-negative or unknown serostatus. Sexual activity among HIV-positive persons on ART increased 12 months after ART initiation. Ongoing secondary transmission prevention programs addressing sexual activity with multiple partners, disclosure to partners and consistent condom use with serodisconcordant partners must be incorporated throughout HIV care programs. PMID:21082338

  4. Case Study Analyses of Play Behaviors of 12-Month-Old Infants Later Diagnosed with Autism

    ERIC Educational Resources Information Center

    Mulligan, Shelley

    2015-01-01

    Case study research methodology was used to describe the play behaviors of three infants at 12 months of age, who were later diagnosed with an autism spectrum disorder. Data included standardized test scores, and analyses of video footage of semi-structured play sessions from infants identified as high risk for autism, because of having a sibling…

  5. Vowel Production in 7- to 12-Month-Old Infants with Hearing Loss

    ERIC Educational Resources Information Center

    Nelson, Rebecca; Yoshinaga-Itano, Christine; Rothpletz, Ann; Sedey, Allison

    2007-01-01

    The purpose of this study was to examine vowel production in 7- to 12-month-old infants with hearing loss. Fifty-four infants were divided into three groups according to degree of hearing loss (mild-to-moderate, moderately severe-to-severe, profound), and their vocalizations were phonetically transcribed from 30-minute videotaped samples. These…

  6. Atypical Object Exploration at 12 Months of Age Is Associated with Autism in a Prospective Sample

    ERIC Educational Resources Information Center

    Ozonoff, Sally; Macari, Suzanne; Young, Gregory S.; Goldring, Stacy; Thompson, Meagan; Rogers, Sally J.

    2008-01-01

    This prospective study examined object exploration behavior in 66 12-month-old infants, of whom nine were subsequently diagnosed with an autism spectrum disorder. Previous investigations differ on when the repetitive behaviors characteristic of autism are first present in early development. A task was developed that afforded specific opportunities…

  7. Suicide Attempts within 12 Months of Treatment for Substance Use Disorders

    ERIC Educational Resources Information Center

    Britton, Peter C.; Conner, Kenneth R.

    2010-01-01

    There are limited prospective data on suicide attempts (SA) during the months following treatment for substance use disorders (SUD), a period of high risk. In an analysis of the Drug Abuse Treatment Outcomes Study, a longitudinal naturalistic multisite study of treated SUDs, variables associated with SA in the 12 months following SUD treatment…

  8. Upper limb module in non-ambulant patients with spinal muscular atrophy: 12 month changes.

    PubMed

    Sivo, Serena; Mazzone, Elena; Antonaci, Laura; De Sanctis, Roberto; Fanelli, Lavinia; Palermo, Concetta; Montes, Jacqueline; Pane, Marika; Mercuri, Eugenio

    2015-03-01

    Recent studies have suggested that in non-ambulant patients affected by spinal muscular atrophy the Upper Limb Module can increase the range of activities assessed by the Hammersmith Functional Motor Scale Expanded. The aim of this study was to establish 12-month changes in the Upper Limb Module in a cohort of non-ambulant spinal muscular atrophy patients and their correlation with changes on the Hammersmith Functional Motor Scale Expanded. The Upper Limb Module scores ranged between 0 and 17 (mean 10.23, SD 4.81) at baseline and between 1 and 17 at 12 months (mean 10.27, SD 4.74). The Hammersmith Functional Motor Scale Expanded scores ranged between 0 and 34 (mean 12.43, SD 9.13) at baseline and between 0 and 34 at 12 months (mean 12.08, SD 9.21). The correlation betweeen the two scales was 0.65 at baseline and 0.72 on the 12 month changes. Our results confirm that the Upper Limb Module can capture functional changes in non-ambulant spinal muscular atrophy patients not otherwise captured by the other scale and that the combination of the two measures allows to capture changes in different subgroups of patients in whom baseline scores and functional changes may be influenced by several variables such as age.

  9. Physical outcomes of patients with burn injuries--a 12 month follow-up.

    PubMed

    Jarrett, Mark; McMahon, Margaret; Stiller, Kathy

    2008-01-01

    There is only limited research documenting functional ability, physical fitness, and health related quality of life after burn injury. The objective of this study was to measure a comprehensive range of physiotherapy-related outcomes over a 12-month period for patients with significant burn injuries. A prospective study was performed on consecutive patients admitted to the Royal Adelaide Hospital over a 12-month period. Outcomes were measured at admission and discharge from hospital and at 1, 3, 6, and 12 months, and comprised the: Medical Outcomes Study 36-Item Short Form Health Survey, Quick Disabilities of the Arm, Shoulder and Hand questionnaire, Lower Extremity Functional Scale questionnaire, shuttle walk test, grip strength and scar appearance using the Matching Assessment with Photographs of Scars. A total of 86 patients (74 male, mean age 38 years) participated. There was a significant deterioration in all outcomes in the first few months after burn injury, with most outcomes improving towards baseline levels by 6 months. However, lower limb function (Lower Extremity Functional Scale) remained significantly reduced at 12 months and functional exercise capacity (shuttle walk test) was still markedly reduced at 6 months compared with predicted normal values. The total burn surface area significantly affected many of the outcomes. In conclusion, for this sample of patients after burn injury, there was an acceptable rate of recovery for physiotherapy-related outcomes, in that most measures had returned to near baseline levels by 6 months postinjury, with the exception of lower limb function and functional exercise capacity.

  10. 12-Month Follow-Up of Fluoxetine and Cognitive Behavioral Therapy for Binge Eating Disorder

    ERIC Educational Resources Information Center

    Grilo, Carlos M.; Crosby, Ross D.; Wilson, G. Terence; Masheb, Robin M.

    2012-01-01

    Objective: The longer term efficacy of medication treatments for binge-eating disorder (BED) remains unknown. This study examined the longer term effects of fluoxetine and cognitive behavioral therapy (CBT) either with fluoxetine (CBT + fluoxetine) or with placebo (CBT + placebo) for BED through 12-month follow-up after completing treatments.…

  11. Evidence for a Unitary Goal Concept in 12-Month-Old Infants

    ERIC Educational Resources Information Center

    Biro, Szilvia; Verschoor, Stephan; Coenen, Lot

    2011-01-01

    We investigated whether infants can transfer their goal attribution between situations that contain different types of information about the goal. We found that 12-month-olds who had attributed a goal based on the causal efficacy of a means-end action generated expectations about the actor's action in another scenario in which the actor could…

  12. Class Matters: 12-Month-Olds' Word-Object Associations Privilege Content over Function Words

    ERIC Educational Resources Information Center

    MacKenzie, Heather; Curtin, Suzanne; Graham, Susan A.

    2012-01-01

    A fundamental step in learning words is the development of an association between a sound pattern and an element in the environment. Here we explore the nature of this associative ability in 12-month-olds, examining whether it is constrained to privilege particular word forms over others. Forty-eight infants were presented with sets of novel…

  13. The Flexibility of 12-Month-Olds' Preferences for Phonologically Appropriate Object Labels

    ERIC Educational Resources Information Center

    MacKenzie, Heather K.; Graham, Susan A.; Curtin, Suzanne; Archer, Stephanie L.

    2014-01-01

    We explored 12-month-olds' flexibility in accepting phonotactically illegal or ill-formed word forms in a modified associative-learning task. Sixty-four English-learning infants were presented with a training phase that either clarified the purpose of a sound--object association task or left the task ambiguous. Infants were then habituated to sets…

  14. Speech Production in 12-Month-Old Children with and without Hearing Loss

    ERIC Educational Resources Information Center

    McGowan, Richard S.; Nittrouer, Susan; Chenausky, Karen

    2008-01-01

    Purpose: The purpose of this study was to compare speech production at 12 months of age for children with hearing loss (HL) who were identified and received intervention before 6 months of age with those of children with normal hearing (NH). Method: The speech production of 10 children with NH was compared with that of 10 children with HL whose…

  15. Adherence to Glaucoma Medications Over 12 Months in Two US Community Pharmacy Chains

    PubMed Central

    Feehan, Michael; Munger, Mark A.; Cooper, Daniel K.; Hess, Kyle T.; Durante, Richard; Jones, Gregory J.; Montuoro, Jaime; Morrison, Margaux A.; Clegg, Daniel; Crandall, Alan S.; DeAngelis, Margaret M.

    2016-01-01

    This study determined the degree of adherence to medications for glaucoma among patients refilling prescriptions in community pharmacies. Methods: Data abstracted from the dispensing records for 3615 adult patients (18 years or older, predominantly over 45) receiving glaucoma medications from two retail pharmacy chains (64 stores in total) were analyzed. From a 24-month historic data capture period, the 12-month levels of adherence were determined using standard metrics, the proportion of days covered (PDC) and the medication possession ratio (MPR). The overall 12-month mean PDC was only 57%, and the mean MPR was 71%. Using a criterion by which 80% coverage was considered satisfactory adherence, only 30% had satisfactory overall 12-month PDC coverage, and only 37% had satisfactory overall 12-month MPR coverage. Refill adherence increased with age and was highest in the 65-and-older age group (p < 0.001). Differential adherence was found across medication classes, with the highest satisfactory coverage seen for those taking alpha2-adrenergic agonists (PDC = 36.0%; MPR = 47.6%) down to those taking direct cholinergic agonists (PDC = 25.0%; MPR = 31.2%) and combination products (PDC = 22.7%; MPR = 31.0%). Adherence to glaucoma medications in the community setting, as measured by pharmacy refill data, is very poor and represents a critical target for intervention. Community pharmacists are well positioned to monitor and reinforce adherence in this population. PMID:27618115

  16. Skeletal findings in the first 12 months following initiation of glucocorticoid therapy for pediatric nephrotic syndrome

    PubMed Central

    Phan, V; Blydt-Hansen, T; Feber, J; Alos, N; Arora, S; Atkinson, S; Bell, L; Clarson, C; Couch, R; Cummings, EA; Filler, G; Grant, RM; Grimmer, J; Hebert, D; Lentle, B; Ma, J; Matzinger, M; Midgley, J; Pinsk, M; Rodd, C; Shenouda, N; Stein, R; Stephure, D; Taback, S; Williams, K; Rauch, F; Siminoski, K; Ward, LM

    2014-01-01

    Introduction Vertebral fracture (VF) incidence following glucocorticoid (GC) initiation has not been previously reported in pediatric nephrotic syndrome. Methods VF were assessed on radiographs (Genant method); lumbar spine bone mineral density (LS BMD) was evaluated by dual-energy x-ray absorptiometry. Results Sixty-five children were followed to 12 months post-GC initiation (median age: 5.4 years, range 2.3 to 17.9). Three of 54 children with radiographs (6%, 95% CI 2 to 15%) had incident VF at 1 year. The mean LS BMD Z-score was below the healthy average at baseline (mean ± SD −0.5 ± 1.1 p=0.001) and at 3 months (−0.6 ± 1.1 p<0.001), but not at 6 months (−0.3 ± 1.3, p=0.066) or 12 months (−0.3 ± 1.2, p=0.066). Mixed effect modeling showed a significant increase in LS BMD Z-scores between 3 and 12 months (0.22 SD, 95% CI 0.08 to 0.36, p=0.003). A sub-group (N=16; 25%) had LS BMD Z-scores that were ≤ −1.0 at 12 months. In these children, each additional 1000 mg/m2 of GC received in the first 3 months was associated with a decrease in LS BMD Z-score by 0.39 at 12 months (95% CI, −0.71 to −0.07; p=0.017). Conclusions The incidence of VF at 1 year was low and LS BMD Z-scores improved by 12 months in the majority. Twenty-five percent of children had LS BMD Z-scores ≤ −1.0 at 12 months. In these children, LS BMD Z-scores were inversely associated with early GC exposure, despite similar GC exposure compared to the rest of the cohort. PMID:23948876

  17. The Closed Equilibrated Biological Aquatic System: A 12 months Test of an Artificial Aquatic Ecosystem

    NASA Astrophysics Data System (ADS)

    Blüm, V.; Andriske, M.; Ludwig, Ch.; Paaßen, U.; Voeste, D.

    1999-01-01

    The ``Closed Equilibrated Biological Aquatic System'' (C.E.B.A.S.) is finally disposed for long-term multi-generation experiments with aquatic organisms in a space station. Therefore a minimum operation time of three month is required. It is verified in three versions of laboratory prototypes. The third one passed successfully a 12 months mid-term test in 1995/96 thus demonstrating its high biological stability. The third version of the C.E.B.A.S. consists of a 100 l animal tank, two plant cultivators with a volume of 15 l each with independent illuminations, a 3.0 l semibiological ``mechanical'' filter, a 3.0 l bacteria filter, a heating/cooling device and a dummy filter unit. The live-bearing teleost Xiphophorus helleri is the vertebrate and the pulmonate water snail Biomphalaria glabrata the invertebrate experimental animal in the system. The rootless higher water plant Ceratophyllum demersum is the producer organism. Ammonia oxidizing bacteria and other microorganisms settle in the filters. A simple data acquisition is combined with temperature and plant illumination control. Besides of the space aspects the C.E.B.A.S. proved to be an extremely suitable tool to investigate the organism and subcomponent interactions in a well defined terrestrial aquatic closed ecosystem by providing physical, chemical and biological data which allow an approach to a comprehensive system analysis. Moreover the C.E.B.A.S. is the base for the development of innovative combined animal-plant aquaculture systems for human nutrition on earth which could be implemented into bioregenerative life support systems with a higher degree of complexity suitable for lunar or planetary bases.

  18. Randomized Controlled Trial of Minimally Invasive Sacroiliac Joint Fusion Using Triangular Titanium Implants vs Nonsurgical Management for Sacroiliac Joint Dysfunction: 12-Month Outcomes

    PubMed Central

    Polly, David W.; Wine, Kathryn D.; Whang, Peter G.; Frank, Clay J.; Harvey, Charles F.; Lockstadt, Harry; Glaser, John A.; Limoni, Robert P.; Sembrano, Jonathan N.

    2015-01-01

    BACKGROUND: Sacroiliac joint (SIJ) dysfunction is a prevalent cause of chronic, unremitting lower back pain. OBJECTIVE: To concurrently compare outcomes after surgical and nonsurgical treatment for chronic SIJ dysfunction. METHODS: A total of 148 subjects with SIJ dysfunction were randomly assigned to minimally invasive SIJ fusion with triangular titanium implants (n = 102) or nonsurgical management (n = 46). Pain, disability, and quality-of-life scores were collected at baseline and at 1, 3, 6, and 12 months. Success rates were compared using Bayesian methods. Crossover from nonsurgical to surgical care was allowed after the 6-month study visit was complete. RESULTS: Six-month success rates were higher in the surgical group (81.4% vs 26.1%; posterior probability of superiority > 0.9999). Clinically important (≥ 15 point) Oswestry Disability Index improvement at 6 months occurred in 73.3% of the SIJ fusion group vs 13.6% of the nonsurgical management group (P < .001). At 12 months, improvements in SIJ pain and Oswestry Disability Index were sustained in the surgical group. Subjects who crossed over had improvements in pain, disability, and quality of life similar to those in the original surgical group. Adverse events were slightly more common in the surgical group (1.3 vs 1.1 events per subject; P = .31). CONCLUSION: This Level 1 study showed that minimally invasive SIJ fusion using triangular titanium implants was more effective than nonsurgical management at 1 year in relieving pain, improving function, and improving quality of life in patients with SIJ dysfunction caused by degenerative sacroiliitis or SIJ disruptions. Pain, disability, and quality of life also improved after crossover from nonsurgical to surgical treatment. ABBREVIATIONS: EQ-5D, EuroQoL-5D INSITE, Investigation of Sacroiliac Fusion Treatment MCS, mental component summary NSM, nonsurgical management ODI, Oswestry Disability Index PCS, physical component summary RFA, radiofrequency ablation SF

  19. Bridging the Gap across the Transition to Coparenthood: Triadic Interactions and Coparenting Representations from Pregnancy through 12 Months Postpartum

    PubMed Central

    Kuersten-Hogan, Regina

    2017-01-01

    Most family researchers agree that the coparenting relationship emerges some time during the transition to parenthood, though it is unclear whether it originates in pregnancy. Previous studies demonstrated that couples' positive representations of their future coparenting relationship and harmonious coparenting behaviors observed during prenatal triadic interactions predicted better postpartum functioning. However, previous studies did not simultaneously assess prenatal coparenting behaviors and representations as predictors of postpartum coparenting. If the coparenting relationship originates during pregnancy, these behavioral and cognitive aspects of prenatal coparenting should show associations with their postpartum counterparts. Based on family systems-, attachment-, and social-learning theory, the first aim in this study was to explore whether prenatal coparenting representations and behaviors are associated with postpartum coparenting, which would suggest that both cognitive and behavioral aspects of the coparenting relationship emerge during pregnancy. A second aim was to determine whether parental coparenting representations are consistent with concurrently observed coparenting behaviors. A sample of 55 couples expecting their first child was observed during triadic interactions during pregnancy and at 3- and 12-months postpartum. Observations were coded using the Coparenting and Family Rating System. Composite scores were formed to reflect harmonious and antagonistic coparenting behaviors. Parents' representations of harmonious and antagonistic coparenting were assessed via interviews and questionnaires during pregnancy and at 3- and 12-months postpartum. Results indicated that prenatal representations of harmonious and antagonistic coparenting were associated with and predicted unique variance in respective postpartum coparenting representations. Prenatal coparenting behaviors were also associated with coparenting behaviors observed during 3-months

  20. Factors Associated with Suicide Outcomes 12-months After Screening Positive for Suicide Risk in the Emergency Department

    PubMed Central

    Arias, Sarah A.; Miller, Ivan; Camargo, Carlos A.; Sullivan, Ashley F.; Goldstein, Amy B.; Allen, Michael H.; Manton, Anne P.; Boudreaux, Edwin D.

    2016-01-01

    Objective The main objective is to identify which patient characteristics have the strongest association with suicide outcomes during the 12-months after the index emergency department (ED) visit. Methods Data were analyzed from the first two phases of the Emergency Department Safety Assessment and Follow-up Evaluation (ED-SAFE). The ED-SAFE study, a quasi-experimental, interrupted time series design, involved participation from eight general medical EDs across the United States. Participants included adults presenting to the ED with active suicidal ideation or an attempt in the last week. Data collection included baseline interview; 6- and 12-month chart reviews; and 6-, 12-, 24-, 36-, and 52-week telephone follow-up assessments. Regression analyses were conducted. Results Among 874 participants, the median age was 37 years (interquartile range 27–47) with 56% female (n=488), 74% white (n=649), and 13% Hispanic (n=113). At baseline, 577 (66%) had suicidal ideation only while 297 (34%) had a suicide attempt in the past week. Data sufficient to determine outcomes were available for 782 (90%). In the 12-months after the index ED visit, 195 (25%) had documentation of at least one suicide attempt or suicide. High school education or less, an ED visit in the preceding 6 months, prior non-suicidal self-injury (NSSI), current alcohol misuse, and intent or plan were predictive of future suicidal behavior. Conclusions and Relevance Continuing to build an understanding of the factors associated with future suicide behaviors for this population will help guide design and implementation of improved suicide screening and interventions in the ED and allocation of scarce resources. PMID:26620285

  1. MOTHER-INFANT INTERACTION AT 12 MONTHS IN PRENATALLY COCAINE-EXPOSED CHILDREN

    PubMed Central

    Ukeje, Ikechukwu; Bendersky, Margaret; Lewis, Michael

    2006-01-01

    This study examined mother-infant interactions of 12-month-old African-American prenatally cocaine-exposed infants and their mothers. Videotaped observations were made during a free-play dyadic interaction, a brief separation, and a reunion period. Videotapes were coded for maternal and child behaviors during each phase of the procedure. Although there were few differences in interactive behaviors between prenatally cocaine-exposed and nonexposed children and their mothers, children who were prenatally exposed to cocaine ignored their mother’s departure (odds ratio [OR] = 3.0, p < .05) during separation significantly more often than nonexposed subjects. In addition, mothers who abused cocaine engaged in significantly more verbal behavior (F(2,104) = 7.00, p < .001) with their children than mothers of nonexposed children. These findings indicate that women who used cocaine during pregnancy may not differ from nonusers in their interactions with their 12-month-old infants. PMID:11417936

  2. Language Differences at 12 Months in Infants Who Develop Autism Spectrum Disorder.

    PubMed

    Lazenby, DeWayne C; Sideridis, Georgios D; Huntington, Noelle; Prante, Matthew; Dale, Philip S; Curtin, Suzanne; Henkel, Lisa; Iverson, Jana M; Carver, Leslie; Dobkins, Karen; Akshoomoff, Natacha; Tagavi, Daina; Nelson, Charles A; Tager-Flusberg, Helen

    2016-03-01

    Little is known about early language development in infants who later develop autism spectrum disorder (ASD). We analyzed prospective data from 346 infants, some of whom were at high risk for developing ASD, to determine if language differences could be detected at 12 months of age in the infants who later were diagnosed with ASD. Analyses revealed lower receptive and expressive language scores in infants who later were diagnosed with ASD. Controlling for overall ability to understand and produce single words, a Rasch analysis indicated that infants who later developed ASD had a higher degree of statistically unexpected word understanding and production. At 12 months of age, quantitative and qualitative language patterns distinguished infants who later developed ASD from those who did not.

  3. Lifetime and 12-Month Nonsuicidal Self-Injury and Academic Performance in College Freshmen.

    PubMed

    Kiekens, Glenn; Claes, Laurence; Demyttenaere, Koen; Auerbach, Randy P; Green, Jennifer G; Kessler, Ronald C; Mortier, Philippe; Nock, Matthew K; Bruffaerts, Ronny

    2016-10-01

    We examined whether nonsuicidal self-injury (NSSI) is associated with academic performance in college freshmen, using census-based web surveys (N = 7,527; response = 65.4%). NSSI was assessed with items from the Self-Injurious Thoughts and Behaviors Interview and subsequently linked with the administratively recorded academic year percentage (AYP). Freshmen with lifetime and 12-month NSSI showed a reduction in AYP of 3.4% and 5.9%, respectively. The college environment was found to moderate the effect of 12-month NSSI, with more strongly reduced AYPs in departments with higher-than-average mean departmental AYPs. The findings suggest that overall stress and test anxiety are underlying processes between NSSI membership and academic performance.

  4. Atypical object exploration at 12 months of age is associated with autism in a prospective sample.

    PubMed

    Ozonoff, Sally; Macari, Suzanne; Young, Gregory S; Goldring, Stacy; Thompson, Meagan; Rogers, Sally J

    2008-09-01

    This prospective study examined object exploration behavior in 66 12-month-old infants, of whom nine were subsequently diagnosed with an autism spectrum disorder. Previous investigations differ on when the repetitive behaviors characteristic of autism are first present in early development. A task was developed that afforded specific opportunities for a range of repetitive uses of objects and was coded blind to outcome status. The autism/ASD outcome group displayed significantly more spinning, rotating, and unusual visual exploration of objects than two comparison groups. The average unusual visual exploration score of the autism/ASD group was over four standard deviations above the mean of the group with no concerns at outcome. Repetitive behaviors at 12 months were significantly related to cognitive and symptomatic status at 36 month outcome. These results suggest that repetitive or stereotyped behaviors may be present earlier than initially thought in very young children developing the autism phenotype.

  5. The relationship between attention and deferred imitation in 12-month-old infants.

    PubMed

    Zmyj, Norbert; Schölmerich, Axel; Daum, Moritz M

    2017-03-01

    Imitation is a frequent behavior in the first years of life, and serves both a social function (e.g., to interact with others) and a cognitive function (e.g., to learn a new skill). Infants differ in their temperament, and temperament might be related to the dominance of one function of imitation. In this study, we investigated whether temperament and deferred imitation are related in 12-month-old infants. Temperament was measured via the Infant Behavior Questionnaire Revised (IBQ-R) and parts of the Laboratory Temperament Assessment Battery (Lab-TAB). Deferred imitation was measured via the Frankfurt Imitation Test for 12-month-olds (FIT-12). Regression analyses revealed that the duration of orienting (IBQ-R) and the latency of the first look away in the Task Orientation task (Lab-TAB) predicted the infants' imitation score. These results suggest that attention-related processes may play a major role when infants start to imitate.

  6. Suicide attempts within 12 months of treatment for substance use disorders.

    PubMed

    Britton, Peter C; Conner, Kenneth R

    2010-02-01

    There are limited prospective data on suicide attempts (SA) during the months following treatment for substance use disorders (SUD), a period of high risk. In an analysis of the Drug Abuse Treatment Outcomes Study, a longitudinal naturalistic multisite study of treated SUDs, variables associated with SA in the 12 months following SUD treatment were examined. Participants included 2,966 patients with one or more SUDs. By 12 months, 77 (2.6%) subjects had attempted suicide. Multivariate logistic regression analyses were used to identify variables associated with SA. Variables collected at baseline that were associated with SA included lifetime histories of SA, suicidal ideation (SI), depression, cocaine as primary substance of use, outpatient methadone treatment, and short-term inpatient treatment. Male sex, older age, and minority race or ethnicity were associated with lower likelihood of SA. After controlling for baseline predictors, variables assessed at 12 months associated with SA included SI during follow-up and daily or more use of cocaine. The data contribute to a small but growing literature of prospective studies of SA among treated SUDs, and suggest that SUDs with cocaine use disorders in particular should be a focus of prevention efforts.

  7. Does the Organization of Emotional Expression Change over Time? Facial Expressivity from 4 to 12 Months

    ERIC Educational Resources Information Center

    Bennett, David S.; Bendersky, Margaret; Lewis, Michael

    2005-01-01

    Differentiation models contend that the organization of facial expressivity increases during infancy. Accordingly, infants are believed to exhibit increasingly specific facial expressions in response to stimuli as a function of development. This study tested this hypothesis in a sample of 151 infants (83 boys and 68 girls) observed in 4 situations…

  8. Stressful life events, perceived stress, and 12-month course of geriatric depression: direct effects and moderation by the 5-HTTLPR and COMT Val158Met polymorphisms.

    PubMed

    Zannas, Anthony S; McQuoid, Douglas R; Steffens, David C; Chrousos, George P; Taylor, Warren D

    2012-07-01

    Although the relation between stressful life events (SLEs) and risk of major depressive disorder is well established, important questions remain about the effects of stress on the course of geriatric depression. Our objectives were (1) to examine how baseline stress and change in stress is associated with course of geriatric depression and (2) to test whether polymorphisms of serotonin transporter (5-HTTLPR) and catechol-O-methyltransferase (COMT Val158Met) genes moderate this relation. Two-hundred and sixteen depressed subjects aged 60 years or older were categorized by remission status (Montgomery-Asberg depression rating scale≤6) at 6 and 12 months. At 6 months, greater baseline numbers of self-reported negative and total SLEs and greater baseline perceived stress severity were associated with lower odds of remission. At 12 months, only baseline perceived stress predicted remission. When we examined change in stress, 12-month decrease in negative SLEs and level of perceived stress were associated with improved odds of 12-month remission. When genotype data were included, COMT Val158Met genotype did not influence these relations. However, when compared with 5-HTTLPR L/L homozygotes, S allele carriers with greater baseline numbers of negative SLEs and with greater decrease in negative SLEs were more likely to remit at 12 months. This study demonstrates that baseline SLEs and perceived stress severity may influence the 12-month course of geriatric depression. Moreover, changes in these stress measures over time correlate with depression outcomes. 5-HTTLPR S carriers appear to be more susceptible to both the effects of enduring stress and the benefit of interval stress reduction.

  9. Searching for periodicity in weighted time point series.

    NASA Astrophysics Data System (ADS)

    Jetsu, L.; Pelt, J.

    1996-09-01

    Consistent statistics for two methods of searching for periodicity in a series of weighted time points are formulated. An approach based on the bootstrap method to estimate the accuracy of detected periodicity is presented.

  10. Gastrointestinal tract development in red deer (Cervus elaphus) calves from 1 to 12 months of age.

    PubMed

    Hammond, K J; Hoskin, S O; Jopson, N B; Mackintosh, C G; Hofstra, G; Thompson, B R; Stevens, D R

    2013-11-01

    This study provides a detailed description of the development of the gastrointestinal tract (GIT) of farmed red deer (Cervus elaphus) calves over the first 12 months of age. GIT development was measured using a combination of computerised tomography (CT) scanning and traditional slaughter plus dissection techniques. Red deer calves of a known birth date were randomly assigned to two treatment groups. A group of five animals were repeatedly CT scanned at 31, 63, 92, 135, 207, 275 and 351 days of age to identify GIT organs and determine their volume. From a group of 20 animals, subsets of four individuals were also scanned at corresponding ages (except 135 days of age). They were immediately euthanised and dissected after CT scanning to compare CT-scanned results with actual anatomical measurements. Individual organ weights were compared with their respective organ volumes determined by CT scanning and were found to have a strong, positive relationship. The combined rumen and reticulum (RR) CT-scanned volume was compared with its volume determined by the water-displacement technique and this also showed good correlation between the two techniques (R = 0.92). The allometric growth rates of organs, relative to animal live weight gains, in descending order, were the rumen, omasum, reticulum, abomasum, caecum blind sac, kidneys, spleen and liver. The red deer GIT was continuing to grow and develop when the last measurement was taken at 351 days of age. The greatest growth of the RR, when expressed in terms of empty weight, was between 31 and 92 days of age. Compared with sheep and cattle, it appears that the red deer have a similar or greater rate of RR development up until approximately 60 to 90 days of age; however, the final increments of GIT maturity in deer may take longer to complete, with the empty weight of the RR gaining 7.5 g/day between 275 and 351 days of age. CT scanning was validated in this study as a viable technique to follow GIT development in the same

  11. Dietary Pattern Trajectories from 6 to 12 Months of Age in a Multi-Ethnic Asian Cohort

    PubMed Central

    Lim, Geraldine Huini; Toh, Jia Ying; Aris, Izzuddin M.; Chia, Ai-Ru; Han, Wee Meng; Saw, Seang Mei; Godfrey, Keith M.; Gluckman, Peter D.; Chong, Yap-Seng; Yap, Fabian; Lee, Yung Seng; Kramer, Michael S.; Chong, Mary Foong-Fong

    2016-01-01

    Little is known about the dietary patterns of Asian infants in the first year of life, nor of their associations with maternal socio-demographic factors. Based on the Growing Up in Singapore towards healthy Outcomes (GUSTO) mother-offspring cohort, cross-sectional dietary patterns were derived by factor analysis using 24-h recalls and food diaries of infants at 6-, 9- and 12-months of age. Dietary pattern trajectories were modeled by mapping similar dietary patterns across each age using multilevel mixed models. Associations with maternal socio-demographic variables, collected through questionnaires during pregnancy, were assessed using general linear models. In n = 486 infants, four dietary pattern trajectories were established from 6- to 12-months. Predominantly breastmilk: mainly breastmilk and less formula milk, Guidelines: rice porridge, vegetables, fruits and low-fat fish and meat, Easy-to-prepare foods: infant cereals, juices, cakes and biscuits and Noodles (in soup) and seafood: noodle and common accompaniments. In adjusted models, higher maternal education attainment was correlated with higher start scores on Predominantly breastmilk, but lowest education attainment increased its adherence over time. Older mothers had higher start scores on Easy-to-prepare foods, but younger mothers had increased adherence over time. Chinese mothers had higher start scores on Predominantly breastmilk but greater adherence to Guidelines over time, while Indian mothers had higher start scores on Easy-to-prepare foods but greater adherence to Predominantly breastmilk with time (p < 0.05 for all). Changes in trajectories over time were small. Hence, dietary patterns established during weaning are strongly influenced by maternal socio-demographic factors and remain stable over the first year of life. PMID:27314387

  12. Time optimal robotic manipulator motions and work places for point to point tasks

    NASA Technical Reports Server (NTRS)

    Dubowsky, S.; Blubaugh, T. D.

    1985-01-01

    High productivity requires that manipulators perform complex tasks quickly. Recently, optimal control algorithms have been developed which enable manipulators to move quickly, but only for simple motions. A method is presented here which combines simple time optimal motions in an optimal manner to yield the minimum time motions for an important class of complex manipulator tasks composed of point to point moves, such as assembly, electronic component insertion and spot welding. This method can also be used to design manipulator actions and work places so that tasks can be completd in minimum time. The method has been implemented in a CAD software package. Examples are presented which show the methods effectiveness.

  13. Planning time-optimal robotic manipulator motions and work places for point-to-point tasks

    NASA Technical Reports Server (NTRS)

    Dubowsky, S.; Blubaugh, T. D.

    1989-01-01

    A method is presented which combines simple time-optimal motions in an optimal manner to yield the minimum-time motions for an important class of complex manipulator tasks composed of point-to-point moves such as assembly, electronic component insertion, and spot welding. This method can also be used to design manipulator actions and work places so that tasks can be completed in minimum time. The method has been implemented in a computer-aided design software system. Several examples are presented. Experimental results show the method's validity and utility.

  14. Effectiveness of a 12-month randomized clinical trial to increase physical activity in multiethnic postpartum women: Results from Hawaii’s Nā Mikimiki Project

    PubMed Central

    Albright, Cheryl L.; Steffen, Alana D.; Wilkens, Lynne R.; White, Kami K.; Novotny, Rachel; Nigg, Claudio R.; Saiki, Kara; Brown, Wendy J.

    2015-01-01

    Objective Few postpartum ethnic minority women perform leisure-time moderate-to-vigorous physical activity (MVPA). The study tested the effectiveness of a 12-month tailored intervention to increase MVPA in women with infants 2–12 months old. Methods From 2008–2011, women (n=311) with infants (average age = 5.7 months) from Honolulu, Hawaii were randomly assigned to receive tailored telephone calls and access to a mom-centric website (n=154) or access to a standard PA website (n=157). MVPA was measured at baseline, 6, and 12 months using self-report and acclerometers. Results Controlling for covariates, the tailored condition significantly increased self-reported MVPA from an average of 44 to 246 minutes/week compared with 46 to 156 minutes/week for the standard condition (p=0.027). Mothers with ≥ 2 children had significantly greater increases in MVPA in response to the tailored intervention than those with one child (p=0.016). Accelerometer-measured MVPA significantly increased over time (p=0.0001), with no condition differences. There was evidence of reactivity to initially wearing accelerometers; the tailored intervention significantly increased MVPA among women with low baseline accelerometer MVPA minutes, but not among those with high minutes (pinteraction=0.053). Conclusion A tailored intervention effectively increased MVPA over 12 months in multiethnic women with infants, particularly those with more than one child. PMID:25285751

  15. Supporting One-Time Point Annotations for Gesture Recognition.

    PubMed

    Nguyen-Dinh, Long-Van; Calatroni, Alberto; Troester, Gerhard

    2016-12-08

    This paper investigates a new annotation technique that reduces significantly the amount of time to annotate training data for gesture recognition. Conventionally, the annotations comprise the start and end times, and the corresponding labels of gestures in sensor recordings. In this work, we propose a one-time point annotation in which labelers do not have to select the start and end time carefully, but just mark a one-time point within the time a gesture is happening. The technique gives more freedom and reduces significantly the burden for labelers. To make the one-time point annotations applicable, we propose a novel BoundarySearch algorithm to find automatically the correct temporal boundaries of gestures by discovering data patterns around their given one-time point annotations. The corrected annotations are then used to train gesture models. We evaluate the method on three applications from wearable gesture recognition with various gesture classes (10-17 classes) recorded with different sensor modalities. The results show that training on the corrected annotations can achieve performances close to a fully supervised training on clean annotations (lower by just up to 5% F1-score on average). Furthermore, the BoundarySearch algorithm is also evaluated on the ChaLearn 2014 multi-modal gesture recognition challenge recorded with Kinect sensors from computer vision and achieves similar results.

  16. Ethosuximide, Valproic Acid and Lamotrigine in Childhood Absence Epilepsy: Initial Monotherapy Outcomes at 12 months

    PubMed Central

    Glauser, Tracy A.; Cnaan, Avital; Shinnar, Shlomo; Hirtz, Deborah G.; Dlugos, Dennis; Masur, David; Clark, Peggy O.; Adamson, Peter C.

    2012-01-01

    Purpose Determine the optimal initial monotherapy for children with newly diagnosed childhood absence epilepsy based on 12 months of double blind therapy. Methods A double-blind, randomized controlled clinical trial compared the efficacy, tolerability and neuropsychological effects of ethosuximide, valproic acid and lamotrigine in children with newly diagnosed childhood absence epilepsy. Study medications were titrated to clinical response and subjects remained in the trial unless they reached a treatment failure criterion. Maximal target doses were ethosuximide 60 mg/kg/day or 2000 mg/day, valproic acid 60 mg/kg/day or 3000 mg/day and lamotrigine 12 mg/kg/day or 600 mg/day. Original primary outcome was at 16–20 weeks and included a video EEG assessment. For this report, the main effectiveness outcome was the freedom from failure rate 12 months after randomization and included a video EEG assessment; differential drug effects were determined by pairwise comparisons. The main cognitive outcome was the percentage of subjects experiencing attentional dysfunction at the Month 12 visit. Key Findings A total of 453 children were enrolled and randomized; seven were deemed ineligible and 446 subjects comprised the overall efficacy cohort. There were no demographic differences between the three cohorts. By 12 months after starting therapy, only 37% of all enrolled subjects were free from treatment failure on their first medication. At the Month 12 visit, the freedom-from-failure rates for ethosuximide and valproic acid were similar (45% and 44%, respectively; odds ratio with valproic acid vs. ethosuximide, 0.94; 95% confidence interval [CI], 0.60 to 1.48; P = 0.82) and were higher than the rate for lamotrigine (21%; odds ratio with ethosuximide vs. lamotrigine, 3.09; 95% CI, 1.86 to 5.13; odds ratio with valproic acid vs. lamotrigine, 2.90; 95% CI, 1.74 to 4.83; P<0.001 for both comparisons). The frequency of treatment failures due to lack of seizure control (p < 0

  17. CUMULATIVE TRAUMAS AND RISK THRESHOLDS: 12-MONTH PTSD IN THE WORLD MENTAL HEALTH (WMH) SURVEYS

    PubMed Central

    Karam, Elie G.; Friedman, Matthew J.; Hill, Eric D.; Kessler, Ronald C.; McLaughlin, Katie A.; Petukhova, Maria; Sampson, Laura; Shahly, Victoria; Angermeyer, Matthias C.; Bromet, Evelyn J.; de Girolamo, Giovanni; de Graaf, Ron; Demyttenaere, Koen; Ferry, Finola; Florescu, Silvia E.; Haro, Josep Maria; He, Yanling; Karam, Aimee N.; Kawakami, Norito; Kovess-Masfety, Viviane; Medina-Mora, María Elena; Browne, Mark A. Oakley; Posada-Villa, José A.; Shalev, Arieh Y.; Stein, Dan J.; Viana, Maria Carmen; Zarkov, Zahari; Koenen, Karestan C.

    2014-01-01

    Background Clinical research suggests that posttraumatic stress disorder (PTSD) patients exposed to multiple traumatic events (TEs) rather than a single TE have increased morbidity and dysfunction. Although epidemiological surveys in the United States and Europe also document high rates of multiple TE exposure, no population-based cross-national data have examined this issue. Methods Data were analyzed from 20 population surveys in the World Health Organization World Mental Health Survey Initiative (n 51,295 aged 18+). The Composite International Diagnostic Interview (3.0) assessed 12-month PTSD and other common DSM-IV disorders. Respondents with 12-month PTSD were assessed for single versus multiple TEs implicated in their symptoms. Associations were examined with age of onset (AOO), functional impairment, comorbidity, and PTSD symptom counts. Results 19.8% of respondents with 12-month PTSD reported that their symptoms were associated with multiple TEs. Cases who associated their PTSD with four or more TEs had greater functional impairment, an earlier AOO, longer duration, higher comorbidity with mood and anxiety disorders, elevated hyper-arousal symptoms, higher proportional exposures to partner physical abuse and other types of physical assault, and lower proportional exposure to unexpected death of a loved one than cases with fewer associated TEs. Conclusions A risk threshold was observed in this large-scale cross-national database wherein cases who associated their PTSD with four or more TEs presented a more “complex” clinical picture with substantially greater functional impairment and greater morbidity than other cases of PTSD. PTSD cases associated with four or more TEs may merit specific and targeted intervention strategies. Depression and Anxiety 31:130–142, 2014. PMID:23983056

  18. Risks and Benefits of Dual Antiplatelet Therapy Beyond 12 Months After Coronary Stenting

    PubMed Central

    Dadjou, Yahya; Safavi, Salar; Kojuri, Javad

    2016-01-01

    Abstract The optimal duration of dual antiplatelet therapy (DAT) after coronary stenting remains poorly define. The aim of this study was to evaluate the impact of longer than 24 months DAT in patients who received drug-eluting and bare-metal stents. A total of 1010 individuals who underwent elective, urgent or emergency coronary angioplasty with intended stent implantation at reference or specialized cardiac hospitals were randomized to receive long-term and short-term DAT to determine the benefits and adverse effects of long-term DAT. Total of 508 patients were randomized to long-term and 502 patients to <1 year DAT, and all of them were followed for more than 36 months for major adverse cardiac and cerebvascular events and bleeding major adverse cardiac and cerebvascular events (MACCE) Mean age of the 1010 patients (364 women and 646 men) was 60 years. Stent reocclusion occurred in 15 patients. Mean Syntax score was 23.00 ± 5.08 for whole samples, 25.00 ± 5.27 in 28 patients with MACCE and 23 ± 5.00 in 982 patients without MACCE (P = 0.057). According to all specified bleeding definitions, clopidogrel therapy for >12 months was not associated with a greater risk of hemorrhage. A regimen of >12 months of clopidogrel therapy in patients who had received drug-eluting or bare-metal stents did not differ significantly from a regimen of <12 months on clopidogrel with regard to MACCE. Long-term DAT might not significantly affect the reduction in the risk of death from any cause, myocardial infarction, or stroke, and not associated with minor or major bleeding events. PMID:27258494

  19. Socio-demographic inequalities and teeth extraction in the last 12 months in Italy

    PubMed Central

    La Torre, Giuseppe; Romeo, Umberto; Iarocci, Gianluca; Brugnoletti, Orlando; Semyonov, Leda; Galanakis, Alexandros; Barbato, Ersilia

    2014-01-01

    Summary Aims Teeth loss represents a major concern for the global oral health status of a population. The aim of this study was to describe the prevalence of teeth extraction among the Italian adult population, analyzing the association between teeth extraction in the last 12 months and socio-demographic characteristics. Methods This cross-sectional study is based on the national survey ‘Health Conditions and Healthcare Services Use’, carried out by the Italian National Centre of Statistics (ISTAT) in 2005. A univariate analysis was performed to investigate the association between the dependent and the independent variables (teeth extraction Vs socio-demographic characteristics). Multiple logistic regression analysis was conducted to assess the influence on the outcome (teeth extraction Yes/No). Results The present study highlights the relationship between teeth extraction and socio-demographic factors. Out of 128,040 individuals, the sampled population consisted of 124,677 subjects, representing 56,400,323 individuals in the Italian population. The prevalence of teeth extraction in the last 12 months was 8.2%. Subjects who underwent teeth extraction in the last 12 months were prevalent female (8.6%), smokers (10.4%), with a primary education (9.2%), married (9.2%), in poor health conditions (9.3%), age category of 55–64 years (11.1%), from Northeast of Italy (8.5%), with scarce household income (8.4%). The multivariate analysis confirmed most of the results of the univariate analysis. Conclusions Inequalities in health among groups of various socioeconomic status constitute one of the main challenges for public health; these inequalities might be reduced by improving educational opportunities, income distribution, health-related behaviour, or accessibility to health care. PMID:25774248

  20. Effects of a 12-month educational intervention on outpatient clinicians’ attitudes and behaviors concerning spiritual practices with patients

    PubMed Central

    Koenig, Harold G; Perno, Kathleen; Hamilton, Ted

    2017-01-01

    Objective We report here the impact of an educational training program on attitudes and practices of physicians (MDs) and mid-level practitioners (MLPs) toward controversial spiritual practices, such as practitioner-led prayer, sharing personal religious beliefs, and encouraging patients’ religious beliefs. Methods In this single-group experimental study, 427 physicians and 93 MLPs affiliated with the Adventist Health System agreed to complete a questionnaire assessing demographics, practice characteristics, religiosity, and attitudes and behaviors at baseline, 1 month, and 12 months. Changes in attitudes and practices over time were examined and baseline predictors were identified using mixed-effects regression models. Results For the most part, attitudes regarding praying with patients, sharing faith with patients, and encouraging patients’ own religious faith did not change much during the 12-month educational training program. However, significant increases were found in frequency of praying with patients (MDs and MLPs), willingness to pray with patients (MDs), sharing their faith with patients (MDs), and encouraging patient’s own religious faith (MDs and MLPs). Among physicians, predictors of praying with patients across time were older age, Christian affiliation, and importance of religion, and among MLPs, they were older age, non-White race, and importance of religion. No interaction between time and religiosity was found. Conclusion Although attitudes toward these mostly controversial practices were largely unaffected, the frequency of praying with patients, sharing faith, and supporting patient’s own religious faith increased over time in both religious and nonreligious clinicians. Educational programs of this type may be important in changing clinicians’ behaviors regarding appropriate and sensitive engagement in such activities with patients. PMID:28210172

  1. High-load strength training improves outcome in patients with plantar fasciitis: A randomized controlled trial with 12-month follow-up.

    PubMed

    Rathleff, M S; Mølgaard, C M; Fredberg, U; Kaalund, S; Andersen, K B; Jensen, T T; Aaskov, S; Olesen, J L

    2015-06-01

    The aim of this study was to investigate the effectiveness of shoe inserts and plantar fascia-specific stretching vs shoe inserts and high-load strength training in patients with plantar fasciitis. Forty-eight patients with ultrasonography-verified plantar fasciitis were randomized to shoe inserts and daily plantar-specific stretching (the stretch group) or shoe inserts and high-load progressive strength training (the strength group) performed every second day. High-load strength training consisted of unilateral heel raises with a towel inserted under the toes. Primary outcome was the foot function index (FFI) at 3 months. Additional follow-ups were performed at 1, 6, and 12 months. At the primary endpoint, at 3 months, the strength group had a FFI that was 29 points lower [95% confidence interval (CI): 6-52, P = 0.016] compared with the stretch group. At 1, 6, and 12 months, there were no differences between groups (P > 0.34). At 12 months, the FFI was 22 points (95% CI: 9-36) in the strength group and 16 points (95% CI: 0-32) in the stretch group. There were no differences in any of the secondary outcomes. A simple progressive exercise protocol, performed every second day, resulted in superior self-reported outcome after 3 months compared with plantar-specific stretching. High-load strength training may aid in a quicker reduction in pain and improvements in function.

  2. Parametric time delay modeling for floating point units

    NASA Astrophysics Data System (ADS)

    Fahmy, Hossam A. H.; Liddicoat, Albert A.; Flynn, Michael J.

    2002-12-01

    A parametric time delay model to compare floating point unit implementations is proposed. This model is used to compare a previously proposed floating point adder using a redundant number representation with other high-performance implementations. The operand width, the fan-in of the logic gates and the radix of the redundant format are used as parameters to the model. The comparison is done over a range of operand widths, fan-in and radices to show the merits of each implementation.

  3. Effect of Improving Dietary Quality on Arterial Stiffness in Subjects with Type 1 and Type 2 Diabetes: A 12 Months Randomised Controlled Trial

    PubMed Central

    Petersen, Kristina S.; Clifton, Peter M.; Lister, Natalie; Keogh, Jennifer B.

    2016-01-01

    People with diabetes have accelerated arterial stiffening. The aim of this study was to determine the effect of increasing fruit, vegetable and dairy intake for 12 months on carotid femoral pulse wave velocity (cfPWV), augmentation index (AIx), and central blood pressure (cBP), compared to a usual diet control, in people with type 1 and type 2 diabetes. In a 12 months randomised controlled trial, cfPWV, AIx and cBP were measured every 3 months. The intervention group received dietary counselling to increase consumption of fruit (+1 serving/day; 150 g/day), vegetables (+2 servings/day; 150 g/day) and dairy (+1 serving/day; 200–250 g/day) at baseline, 1, 3, 6 and 9 months. The control group continued on their usual diet. One hundred and nine participants were randomised and 92 (intervention n = 45; control n = 47) completed. At 3 months, fruit (184 g/day; p = 0.001) and dairy (83 g/day; p = 0.037) intake increased in the intervention group compared with the control group but this increase was not maintained at 12 months. After adjustment for baseline measurements there was no time by treatment effect for central systolic or diastolic BP, AIx or cfPWV. A time effect existed for AIx which modestly increased over time. Peripheral diastolic BP and central pulse pressure were improved in the intervention group compared with the control group at 12 months. In the cohort with type 1 and type 2 diabetes, improving dietary quality by increasing consumption of fruit, vegetables and dairy did not improve cBP, AIx or cfPWV, compared with a control group continuing on their usual diet, after 12 months. PMID:27338467

  4. Return times at periodic points in random dynamics

    NASA Astrophysics Data System (ADS)

    Haydn, Nicolai; Todd, Mike

    2017-01-01

    We prove a quenched limiting law for random measures on subshifts at periodic points. We consider a family of measures {≤ft\\{{{μω}\\right\\}}ω \\in Ω } , where the ‘driving space’ Ω is equipped with a probability measure which is invariant under a transformation θ. We assume that the fibred measures {μω} satisfy a generalised invariance property and are ψ-mixing. We then show that for almost every ω the return times to cylinders A n at periodic points are in the limit compound Poisson distributed for a parameter ϑ which is given by the escape rate at the periodic point.

  5. Development of frontal electroencephalogram (EEG) and heart rate (ECG) responses to affective musical stimuli during the first 12 months of post-natal life.

    PubMed

    Schmidt, Louis A; Trainor, Laurel J; Santesso, Diane L

    2003-06-01

    We examined the development of infants' regional electrocortical (EEG) and heart rate (ECG) responses to affective musical stimuli during the first 12 months of post-natal life. Separate groups of infants were seen at 3 (n=33), 6 (n=42), 9 (n=52), and 12 (n=40) months of age at which time regional EEG and ECG responses were continuously recorded during a baseline condition and during the presentation of three orchestral pieces that were known to vary in affective valence and intensity (happy, sad, fear). Overall, there were two important findings. First, we found that although the overall amount of EEG 4-8 Hz power increased between 3 and 12 months, the distribution of EEG power changed across age, with the younger infants (3- and 6-month-olds) showing no difference between frontal and parietal regions, but the older infants (9- and 12-month-olds) showing relatively more activation at frontal than at parietal sites. This development likely reflects the maturation of frontal lobe function. Second, we found that the presentation of affective music significantly increased brain activity at 3 months of age, had seemingly little effect at 6 and 9 months, and significantly attenuated brain activity at 12 months. Findings suggest that there is a clear developmental change in the effect of music on brain activity in the first year, with music having a "calming" influence on infants by the end of the first year of life.

  6. Do patients with bipolar disorder and subsyndromal symptoms benefit from functional remediation? A 12-month follow-up study.

    PubMed

    Sanchez-Moreno, Jose; Bonnín, Caterina; González-Pinto, Ana; Amann, Benedikt L; Solé, Brisa; Balanzá-Martínez, Vicent; Arango, Celso; Jimenez, Esther; Tabarés-Seisdedos, Rafael; Garcia-Portilla, M Paz; Ibáñez, Angela; Crespo, Jose Manuel; Ayuso-Mateos, Jose Luis; Vieta, Eduard; Martinez-Aran, Anabel; Torrent, Carla

    2017-01-23

    We analyzed the efficacy of functional remediation, in a sample of patients with bipolar disorder who presented with subsyndromal symptoms. From a total sample of 239 patients with bipolar I and II disorder, according to DSM-IV-TR diagnostic criteria, entering a randomized clinical trial, those patients who presented with subsyndromal symptoms were selected based on a method already described by Berk and colleagues was applied. It consists of using the Clinical Global Impression-Bipolar version (CGI-BP) to establish the scores of the Hamilton Depression Rating Scale (HAM-D) and of the Young Mania Rating Scale (YMRS) that correspond with 1 in the CGI-BP. Functional outcome and mood symptoms were assessed at 6 and at 12-month follow-up. A total of 99 patients were selected for this post-hoc analysis, allocated as follows: functional remediation (n=33); psychoeducation (n=37) and treatment as usual (TAU,n=29). The repeated-measures analyses at 12-month follow-up revealed a significant group x time interaction in favour of the patients who received functional remediation when compared to psychoeducation and TAU (F=2.93; p=0.02) at improving psychosocial functioning. Finally, mood symptoms did not significantly change in any of the three groups at any time of follow-up, as shown by the non-significant group x time interaction effect in HAM-D scores (F=1.57; p=0.18) and YMRS scores (F=1.51; p=0.20). Bipolar patients with subsyndromal symptoms improve their functional outcome when exposed to functional remediation regardless of the persistence of mood symptomatology.

  7. 20 CFR 404.251 - Subsequent entitlement to benefits less than 12 months after entitlement to disability benefits...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Subsequent entitlement to benefits less than 12 months after entitlement to disability benefits ended. 404.251 Section 404.251 Employees' Benefits... Subsequent entitlement to benefits less than 12 months after entitlement to disability benefits ended....

  8. The 12-Month Prevalence of DSM-IV Anxiety Disorders among Nigerian Secondary School Adolescents Aged 13-18 Years

    ERIC Educational Resources Information Center

    Adewuya, Abiodun O.; Ola, Bola A.; Adewumi, Tomi A.

    2007-01-01

    Aims: To estimate the 12-month prevalence of DSM-IV-specific anxiety disorders among Nigerian secondary school adolescents aged 13-18 years. Method: A representative sample of adolescents (n=1090) from senior secondary schools in a semi-urban town in Nigeria was assessed for the 12-month prevalence of DSM-IV-specific anxiety. Results: The 12-month…

  9. Identification of Infants at Risk for Autism Spectrum Disorder and Developmental Language Delay Prior to 12 Months

    ERIC Educational Resources Information Center

    Samango-Sprouse, Carole A.; Stapleton, Emily J.; Aliabadi, Farhad; Graw, Robert; Vickers, Rebecca; Haskell, Kathryn; Sadeghin, Teresa; Jameson, Robert; Parmele, Charles L.; Gropman, Andrea L.

    2015-01-01

    Studies have shown an increased head circumference and the absence of the head tilt reflex as possible risk factors for autism spectrum disorder, allowing for early detection at 12 months in typically developing population of infants. Our aim was to develop a screening tool to identify infants prior to 12 months at risk for autism spectrum…

  10. 77 FR 27386 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-10

    ... Fish and Wildlife Service 50 CFR Part 17 Endangered and Threatened Wildlife and Plants; 12-Month... Wildlife and Plants. Upon publication of this 12-month petition finding, we will add the Arapahoe snowfly... to revise the Federal Lists of Threatened and Endangered Wildlife and Plants that...

  11. Docosahexaenoic Acid Status in Pregnancy Determines the Maternal Docosahexaenoic Acid Status 3-, 6- and 12 Months Postpartum. Results from a Longitudinal Observational Study

    PubMed Central

    Markhus, Maria Wik; Rasinger, Josef Daniel; Malde, Marian Kjellevold; Frøyland, Livar; Skotheim, Siv; Braarud, Hanne Cecilie; Stormark, Kjell Morten; Graff, Ingvild Eide

    2015-01-01

    Background Essential fatty acid status as well as docosahexaenoic acid (DHA, 22:6n-3) declines during pregnancy and lactation. As a result, the DHA status may not be optimal for child development and may increase the risk for maternal postpartum depression. The objective of this study was to assess changes in the maternal fatty acid status from pregnancy to 12 months postpartum, and to study the impact of seafood consumption on the individual fatty acid status. Methods Blood samples and seafood consumption habits (gestation week 28, and three-, six- and 12 months postpartum) were collected in a longitudinal observational study of pregnant and postpartum women (n = 118). Multilevel linear modeling was used to assess both changes over time in the fatty acid status of red blood cells (RBC), and in the seafood consumption. Results Six fatty acids varied the most (>80%) across the four time points analyzed, including the derivative of the essential α-linoleic acid (ALA, 18:3n-3), DHA; the essential linoleic acid (LA, 18:2 n-6); and the LA derivative, arachidonic acid (AA, 20:4n-6). Over all, a large variation in individuals’ DHA- and AA status was observed; however, over the 15-month study period only small inter-individual differences in the longitudinal trajectory of DHA- and AA abundance in the RBC were detected. The median intake of seafood was lower than recommended. Regardless, the total weekly frequency of seafood and eicosapentaenoic acid (EPA, 20:5n-3)/DHA-supplement intake predicted the maternal level of DHA (μg/g RBC). Conclusion The period of depletion of the maternal DHA status during pregnancy and lactation, seem to turn to repletion from about six months postpartum towards one year after childbirth, irrespective of RBC concentration of DHA during pregnancy. Seafood and EPA/DHA-supplement intake predicted the DHA levels over time. Trial Registration www.helseforskning.etikkom.no 2009/570/REC, project number: 083.09 PMID:26331947

  12. Psychosocial and neurocognitive functioning in unipolar and bipolar depression: a 12-month prospective study.

    PubMed

    Godard, Julie; Baruch, Philippe; Grondin, Simon; Lafleur, Martin F

    2012-03-30

    Previous studies have revealed psychosocial and cognitive impairments in patients during unipolar and bipolar depression, which persist even in subsyndromal and euthymic states. Currently, little is known about the nature and the extent of psychosocial and cognitive deficits during depression. The aim of the present study was to characterize psychosocial and cognitive profiles among unipolar (MDD) and bipolar (BD) patients during a major depressive episode and to compare the profiles of the patient groups. Depressed patients with MDD (n=13) and BD (n=11) were followed over a period of 12 months. Clinical, psychosocial and neuropsychological assessments were conducted at baseline and at 6-week, 4-month, 8-month and 12-month follow-ups. In the case of severe mood disorders, psychosocial and neurocognitive functioning seem similar among MDD and BD patients during a depressive episode. All MDD and BD patients had global psychosocial dysfunction, characterized by occupational and relational impairments. Furthermore, the neurocognitive profile was heterogeneous with regard to the nature and extent of cognitive deficits but attentional processes were frequently compromised. After 1 year of treatment, occupational and relational impairments, as well as neurocognitive dysfunction, persisted sufficiently to alter daily functioning.

  13. Does contingency in adults' responding influence 12-month-old infants' social referencing?

    PubMed

    Stenberg, Gunilla

    2016-12-07

    In two experiments we examined the influence of contingent versus non-contingent responding on infant social referencing behavior. EXPERIMENT 1: Forty 12-month-old infants were exposed to an ambiguous toy in a social referencing situation. In one condition an unfamiliar adult who in a previous play situation had responded contingently to the infant's looks gave the infant positive information about the toy. In the other condition an unfamiliar adult who previously had not responded contingently delivered the positive information. EXPERIMENT 2: Forty-eight 12-month-old infants participated in Experiment 2. In this experiment it was examined whether the familiarity of the adult influences infants' reactions to contingency in responding. In one condition a parent who previously had responded contingently to the infant's looks provided positive information about the ambiguous toy, and in the other condition a parent who previously had not responded contingently provided the positive information. The infants looked more at the contingent experimenter in Experimenter 1, and also played more with the toy after receiving positive information from the contingent experimenter. No differences in looking at the parent and in playing with the toy were found in Experiment 2. The results indicate that contingency in responding, as well as the familiarity of the adult, influence infants' social referencing behavior.

  14. Long-term memory, forgetting, and deferred imitation in 12-month-old infants

    PubMed Central

    Klein, Pamela J.; Meltzoff, Andrew N.

    2013-01-01

    Long-term recall memory, as indexed by deferred imitation, was assessed in 12-month-old infants. Independent groups of infants were tested after retention intervals of 3 min, 1 week and 4 weeks. Deferred imitation was assessed using the ‘observation-only’ procedure in which infants were not allowed motor practice on the tasks before the delay was imposed. Thus, the memory could not have been based on re-accessing a motor habit, because none was formed in the first place. After the delay, memory was assessed either in the same or a different environmental context from the one in which the adult had originally demonstrated the acts. In Experiments 1 and 3, infants observed the target acts while in an unusual environment (an orange and white polka-dot tent), and recall memory was tested in an ordinary room. In Experiment 2, infants observed the target acts in their homes and were tested for memory in a university room. The results showed recall memory after all retention intervals, including the 4 week delay, with no effect of context change. Interestingly, the forgetting function showed that the bulk of the forgetting occurred during the first week. The findings of recall memory without motor practice support the view that infants as young as 12 months old use a declarative (nonprocedural) memory system to span delay intervals as long as 4 weeks. PMID:25147475

  15. Replicating Reducing the Risk: 12-Month Impacts of a Cluster Randomized Controlled Trial

    PubMed Central

    Blocklin, Michelle; Layzer, Jean; Price, Cristofer; Juras, Randall; Freiman, Lesley

    2016-01-01

    Objectives. To test the effectiveness of Reducing the Risk, an evidence-based sexual health curriculum designed to help prevent adolescent pregnancy and sexually transmitted infections, on youth sexual behavior and intermediate outcomes thought to lead to these behaviors. Methods. Classes within schools in St. Louis, Missouri; Austin, Texas; and San Diego, California; were randomly assigned to receive Reducing the Risk or “business as usual.” Youths completed Web-based surveys at baseline (preintervention, August 2012–January 2014) and 12 months later (August 2013–January 2015). Intent-to-treat analyses were conducted across sites; we tested for differences in impacts between sites and other subgroups. Results. The program had no overall impact on sexual behaviors. However, at 1 site, program participants were significantly less likely to have engaged in recent sexual intercourse than were control group members. There were positive overall impacts on intermediate outcomes (e.g., knowledge, attitudes). Conclusions. After 12 months, Reducing the Risk was unsuccessful at changing sexual behaviors. Other results were mixed, but promising evidence (e.g., behavioral impacts at 1 site, impacts on intermediate outcomes) suggests potential for more widespread behavioral impacts over a longer term. PMID:27689492

  16. Northern Eurasia Earth Science Partnership Initiative in the past 12 months: An Update

    NASA Astrophysics Data System (ADS)

    Groisman, Pavel; Lowford, Richard

    2013-04-01

    Eight years ago Northern Eurasia Earth Science Partnership Initiative (NEESPI) was launched with the release of its Science Plan (http://neespi.org). Gradually, the Initiative was joined by numerous international projects launched in EU, Russia, the United States, Canada, Japan, and China. Throughout its duration, NEESPI served and is serving as an umbrella for more than 155 individual international research projects. Currently, the total number of the ongoing NEESPI projects (as on January 2013) is 48 and has changed but slightly compared to its peak (87 in 2008). The past 12 months (from the previous EGU Assembly) were extremely productive in the NEESPI outreach. We organized three Open Science Sessions at the three major Geoscience Unions/Assembly Meetings (JpGU, AGU, and this EGU Session) and three International NEESPI Workshops. The programs of two of these Workshops (in Yoshkar Ola and Irkutsk, Russia) included Summer Schools for early career scientists. More than 150 peer-reviewed papers, books, and/or book chapters were published in 2012 or are in press (this list was still incomplete at the time of preparation of this abstract). In particular, a suite of 25 peer-reviewed NEESPI articles was published in the Forth Special NEESPI Issue of "Environmental Research Letters" (ERL) http://iopscience.iop.org/1748-9326/focus/NEESPI3 (this is the third ERL Issue). In December 2012, the next Special ERL NEESPI Issue was launched http://iopscience.iop.org/1748-9326/focus/NEESPI4. Northern Eurasia is a large study domain. Therefore, it was decided to describe the latest findings related to its environmental changes in several regional monographs in English. Three books on Environmental Changes in the NEESPI domain were published by the University of Helsinki (Groisman et al. 2012), "Akademperiodyka" (Groisman and Lyalko 2012), and Springer Publishing House (Groisman and Gutman 2013) being devoted to the high latitudes of Eurasia, to Eastern Europe, and to Siberia

  17. Accessing the exceptional points of parity-time symmetric acoustics

    PubMed Central

    Shi, Chengzhi; Dubois, Marc; Chen, Yun; Cheng, Lei; Ramezani, Hamidreza; Wang, Yuan; Zhang, Xiang

    2016-01-01

    Parity-time (PT) symmetric systems experience phase transition between PT exact and broken phases at exceptional point. These PT phase transitions contribute significantly to the design of single mode lasers, coherent perfect absorbers, isolators, and diodes. However, such exceptional points are extremely difficult to access in practice because of the dispersive behaviour of most loss and gain materials required in PT symmetric systems. Here we introduce a method to systematically tame these exceptional points and control PT phases. Our experimental demonstration hinges on an active acoustic element that realizes a complex-valued potential and simultaneously controls the multiple interference in the structure. The manipulation of exceptional points offers new routes to broaden applications for PT symmetric physics in acoustics, optics, microwaves and electronics, which are essential for sensing, communication and imaging. PMID:27025443

  18. Severity of 12-Month DSM-IV Disorders in the National Comorbidity Survey Replication Adolescent Supplement

    PubMed Central

    Kessler, Ronald C.; Avenevoli, Shelli; Costello, Jane; Green, Jennifer Greif; Gruber, Michael J.; McLaughlin, Katie A.; Petukhova, Maria; Sampson, Nancy A.; Zaslavsky, Alan M.; Merikangas, Kathleen Ries

    2012-01-01

    Context Estimates of DSM-IV disorder prevalence are high; stringent criteria to define need for services are desired. Objective To present US national data on the prevalence and sociodemographic correlates of 12-month serious emotional disturbance (SED), defined by the US Substance Abuse and Mental Health Services Administration, from the National Comorbidity Survey Replication Adolescent Supplement. Design The National Comorbidity Survey Replication Adolescent Supplement is a national survey of DSM-IV anxiety, mood, behavior, and substance disorders among US adolescents. Setting Dual-frame household and school samples of US adolescents. Participants Total of 6483 pairs of adolescents aged 13 to 17 (interviews) and parents (questionnaires). Main Outcome Measures The DSM-IV disorders were assessed with the World Health Organization Composite International Diagnostic Interview and validated with blinded clinical interviews based on the Schedule for Affective Disorders and Schizophrenia for School-Age Children. Serious emotional disturbance was operationalized as a DSM-IV/Composite International Diagnostic Interview disorder with a score of 50 or less on the Children’s Global Assessment Scale (ie, moderate impairment in most areas of functioning or severe impairment in at least 1 area). Concordance of Composite International Diagnostic Interview SED diagnoses with blinded Schedule for Affective Disorders and Schizophrenia for School-Age Children diagnoses was good. Results The estimated prevalence of SED was 8.0%. Most SEDs were due to behavior (54.5%) or mood (31.4%) disorders. Although respondents with 3 or more disorders made up only 29.0% of those with 12-month DSM-IV/Composite International Diagnostic Interview disorders, they constituted 63.5% of SEDs. Predictive effects of high comorbidity were significantly greater than the product of their disorder-specific odds ratios and consistent across disorder types. Associations of sociodemographic variables with SED

  19. Prevalence, correlates, and comorbidity of 12-Month tobacco dependence among ever-smokers in South Korea, during 1984-2001.

    PubMed

    Jeon, Hong Jin; Hahm, Bong-Jin; Lee, Hae-Woo; Hong, Jin Pyo; Bae, Jae-Nam; Park, Jong Ik; Kim, Jang-Kyu; Bae, Ahn; Park, Jong Han; Chung, Eun-Kee; Shin, Jong-Ho; Choi, Yong-Seoung; Chung, In-Won; Lee, Hyo Jung; Cho, Maeng Je

    2008-04-01

    The rate of dependence among ever-users of a drug indicates the risk of developing dependence once an individual has been exposed to the drug. This is the first study to investigate 12-month tobacco dependence (TD) among ever-smokers in a community-based population. Analyses were based on two national studies of representative samples aged 18-64 in 1984 (n=5,025) and in 2001 (n=6,275), conducted with household visits and face-to-face interviews. The rates of 12-month TD among ever-smokers in men showed no significant difference between 51.6% in 1984 and 50.6% in 2001. On the contrary, the rates in women significantly increased from 33.3% in 1984 to 52.8% in 2001. After adjusting for the sociodemographic variables, 'male gender' was significantly associated with 12-month TD among eversmokers in 1984, but not in 2001. 'Unmarried' was significantly associated in 2001 but not in 1984. 'Alcohol dependence' was the only psychiatric disorder associated with 12-month TD in both study years. In conclusion, 12-month TD was found in about 50% of ever-smokers, and gender differences between the rates of 12-month TD which was observed in 1984 disappeared in 2001. Individuals with 12-month TD showed higher comorbidity with alcohol dependence than ever-smokers without TD.

  20. Gender and discipline in 5-12-month-old infants: a longitudinal study.

    PubMed

    Ahl, Richard Evan; Fausto-Sterling, Anne; García-Coll, Cynthia; Seifer, Ronald

    2013-04-01

    We examined the effects of infant age and gender on the behaviors of infants and mothers during discipline interactions using longitudinal, naturalistic, home-based, taped observations of 16 mother-infant dyads (eight males and eight females). These observations were conducted between the child ages of 5 and 12 months and used a devised Maternal Discipline Coding System to code for the occurrence of discipline events. During discipline interactions, mothers vocalized longer, used harsher tones, and used more explanations with older compared to younger infants. Male infants were more likely than female infants to cry or whine during discipline events. Mothers of male infants used longer vocalizations, more words, and more affectionate terms than mothers of female infants. Male infants were more difficult during discipline interactions than female infants, but it appeared that mothers of males responded to this difficulty by using milder discipline techniques.

  1. Proteomic characterization of human milk fat globule membrane proteins during a 12 month lactation period.

    PubMed

    Liao, Yalin; Alvarado, Rudy; Phinney, Brett; Lönnerdal, Bo

    2011-08-05

    The milk fat globule membrane (MFGM) contains proteins which have been implicated in a variety of health benefits. Milk fat globule membrane proteins were isolated from human milk during a 12 month lactation period and subjected to in-solution digestion and liquid chromatography tandem mass spectrometry analysis. Data were pooled, and our results showed that 191 proteins were identified. Relative quantification of the identified MFGM proteins during the course of lactation was performed by label free spectral counting and differentiation expression analysis, which showed some proteins decreasing during the course of lactation whereas some increased or remained at a relatively constant level. The human MFGM proteins are distributed between intracellular, extracellular, and membrane-associated proteins, and they are mainly involved in cell communication and signal transduction, immune function, metabolism and energy production. This study provides more insights into the dynamic composition of human MFGM proteins, which in turn will enhance our understanding of the physiological significance of MFGM proteins.

  2. The role of verbal labels on flexible memory retrieval at 12-months of age.

    PubMed

    Taylor, Gemma; Liu, Hao; Herbert, Jane S

    2016-11-01

    The provision of verbal labels enhances 12-month-old infants' memory flexibility across a form change in a puppet imitation task (Herbert, 2011), although the mechanisms for this effect remain unclear. Here we investigate whether verbal labels can scaffold flexible memory retrieval when task difficulty increases and consider the mechanism responsible for the effect of language cues on early memory flexibility. Twelve-month-old infants were provided with English, Chinese, or empty language cues during a difficult imitation task, a combined change in the puppet's colour and form at the test (Hayne et al., 1997). Imitation performance by infants in the English language condition only exceeded baseline performance after the 10-min delay. Thus, verbal labels facilitated flexible memory retrieval on this task. There were no correlations between infants' language comprehension and imitation performance. Thus, it is likely that verbal labels facilitate both attention and categorisation during encoding and retrieval.

  3. Factors associated with parental perception of child vulnerability 12 months after abnormal newborn screening results.

    PubMed

    Tluczek, Audrey; McKechnie, Anne Chevalier; Brown, Roger L

    2011-10-01

    We identified factors associated with elevated parental perceptions of child vulnerability (PPCV) 12 months after newborn screening (NBS) of 136 children: healthy, normal results (H, n = 37), cystic fibrosis carriers (CF-C, n = 40), congenital hypothyroidism (CH, n = 36), and cystic fibrosis (CF, n = 23). Controlling for infant and parent characteristics, mixed logit structural equation modeling showed direct paths to elevated PPCV included parent female sex, CF diagnosis, and high documented illness frequency. PPCV was positively associated with maternal parenting stress. Infants with CF and CF carriers had significantly more documented illness frequency than H group infants. The CH group did not differ significantly from the H group and had no paths to PPCV. Unexpectedly high documented illness frequency among infants who are CF carriers warrants further investigation.

  4. Factors associated with recurrent tuberculosis more than 12 months after treatment completion

    PubMed Central

    Kim, Lindsay; Moonan, Patrick K.; Heilig, Charles M.; Yelk Woodruff, Rachel S.; Kammerer, J. Steve; Haddad, Maryam B.

    2016-01-01

    SUMMARY Setting Even in persons with complete treatment of their first tuberculosis (TB) episode, patients with a TB history are at higher risk for having TB. Objective Describe factors from the initial TB episode associated with recurrent TB among patients who completed treatment and remained free of TB for at least 12 months. Design US TB cases, stratified by birth origin, during 1993–2006 were examined. Cox proportional hazards regression was employed to assess the association of factors during the initial episode with recurrence at least 12 months after treatment completion. Results Among 632 US-born patients, TB recurrence was associated with age 25–44 (adjusted hazard ratio [aHR] 1.77, 99% confidence interval [CI] 1.02–3.09, attributable fraction [AF] 1%–34%), substance use (aHR 1.57, 99%CI 1.23–2.02, AF 8%–22%), and treatment supervised by health departments (aHR 1.42, 99%CI 1.03–1.97, AF 2%–28%). Among 211 foreign-born patients, recurrence was associated with HIV infection (aHR 2.24, 99%CI 1.27–3.98, AF 2%–9%) and smear-positive TB (aHR 1.56, 99%CI 1.06–2.30, AF 3%–33%). Conclusion Factors associated with recurrence differed by birth origin and might be useful for anticipating greater risk for recurrent TB among certain patients with a TB history. PMID:26688528

  5. Mild pituitary phenotype in 3- and 12-month-old Aip-deficient male mice.

    PubMed

    Lecoq, Anne-Lise; Zizzari, Philippe; Hage, Mirella; Decourtye, Lyvianne; Adam, Clovis; Viengchareun, Say; Veldhuis, Johannes D; Geoffroy, Valérie; Lombès, Marc; Tolle, Virginie; Guillou, Anne; Karhu, Auli; Kappeler, Laurent; Chanson, Philippe; Kamenický, Peter

    2016-10-01

    Germline mutations in the aryl hydrocarbon receptor-interacting protein (AIP) gene predispose humans to pituitary adenomas, particularly of the somatotroph lineage. Mice with global heterozygous inactivation of Aip (Aip(+/-)) also develop pituitary adenomas but differ from AIP-mutated patients by the high penetrance of pituitary disease. The endocrine phenotype of these mice is unknown. The aim of this study was to determine the endocrine phenotype of Aip(+/-) mice by assessing the somatic growth, ultradian pattern of GH secretion and IGF1 concentrations of longitudinally followed male mice at 3 and 12 months of age. As the early stages of pituitary tumorigenesis are controversial, we also studied the pituitary histology and somatotroph cell proliferation in these mice. Aip(+/-) mice did not develop gigantism but exhibited a leaner phenotype than wild-type mice. Analysis of GH pulsatility by deconvolution in 12-month-old Aip(+/-) mice showed a mild increase in total GH secretion, a conserved GH pulsatility pattern, but a normal IGF1 concentration. No pituitary adenomas were detected up to 12 months of age. An increased ex vivo response to GHRH of pituitary explants from 3-month-old Aip(+/-) mice, together with areas of enlarged acini identified on reticulin staining in the pituitary of some Aip(+/-) mice, was suggestive of somatotroph hyperplasia. Global heterozygous Aip deficiency in mice is accompanied by subtle increase in GH secretion, which does not result in gigantism. The absence of pituitary adenomas in 12-month-old Aip(+/-) mice in our experimental conditions demonstrates the important phenotypic variability of this congenic mouse model.

  6. Association Between Blood Transfusions and 12-Month Mortality After Transcatheter Aortic Valve Implantation.

    PubMed

    Kleczynski, Pawel; Dziewierz, Artur; Bagienski, Maciej; Rzeszutko, Lukasz; Sorysz, Danuta; Trebacz, Jaroslaw; Sobczynski, Robert; Tomala, Marek; Stapor, Maciej; Dudek, Dariusz

    2017-02-07

    Blood transfusions are considered as an important predictor of adverse outcome in patients with severe aortic (AS) undergoing transcatheter aortic valve implantation (TAVI). We sought to investigate the association between blood transfusions and mortality after TAVI. We enrolled 101 consecutive patients with severe AS undergoing TAVI. Patients who required transfusion were defined as patients in whom at least one unit of packed red blood cells (PRBCs) was transfused in the perioperative period. Twelve-month outcomes were assessed based on Valve Academic Research Consortium definitions. A total of 28 (27.7%) patients required blood transfusion after TAVI. Baseline characteristics of the patients with and without a transfusion were similar. Median amount of PRBCs was 2 (interquartile range, 2-4). Twelvemonth all-cause mortality was higher in patients with than without a blood transfusion (39.3% versus 9.6%; P = 0.001). Importantly, the need for a blood transfusion after TAVI was an independent predictor of higher mortality rates after 12 months (hazard ratio (HR) 2.84 95%CI (1.06-7.63); P = 0.039; (HR for incomplete coronary revascularization 10.86, 95%CI 3.72-31.73; P < 0.001; HR for a history of stroke/TIA 3.93, 95%CI 1.39-11.07; P < 0.001). The duration of inhospital stay was longer in patients requiring transfusion (16.0 (14.0-22.0) versus 7.0 (7.0-11.5) days; P = 0.014). In conclusion, blood transfusions after TAVI were associated with higher mortality rates after 12 months, longer in-hospital stay, and were identified as an independent predictor of impaired clinical outcome.

  7. Ospemifene 12-month safety and efficacy in postmenopausal women with vulvar and vaginal atrophy

    PubMed Central

    2014-01-01

    Objective Assessment of 12-month safety of ospemifene 60 mg/day for treatment of postmenopausal women with vulvar and vaginal atrophy (VVA). Methods In this 52-week, randomized, double-blind, placebo-controlled, parallel-group study, women 40–80 years with VVA and an intact uterus were randomized 6 : 1 to ospemifene 60 mg/day or placebo. The primary objective was 12-month safety, particularly endometrial; 12-week efficacy was assessed. Safety assessments included endometrial histology and thickness, and breast and gynecological examinations. Efficacy evaluations included changes from baseline to week 12 in percentage of superficial and parabasal cells and vaginal pH. Results Of 426 randomized subjects, 81.9% (n = 349) completed the study with adverse events the most common reason for discontinuation (ospemifene 9.5%; placebo 3.9%). Most (88%) treatment-emergent adverse events with ospemifene were considered mild or moderate. Three cases (1.0%) of active proliferation were observed in the ospemifene group. For one, active proliferation was seen at end of study week 52, and diagnosed as simple hyperplasia without atypia on follow-up biopsy 3 months after the last dose. This subsequently resolved with progestogen treatment and dilatation and curettage. In six subjects (five ospemifene (1.4%), one placebo (1.6%)) endometrial polyps were found (histopathology); however, only one (ospemifene) was confirmed as a true polyp during additional expert review. Endometrial histology showed no evidence of carcinoma. Statistically significant improvements were seen for all primary and secondary efficacy measures and were sustained through week 52 with ospemifene vs. placebo. Conclusions The findings of this 52-week study confirm the tolerance and efficacy of oral ospemifene previously reported in short- and long-term studies. PMID:23984673

  8. 3-D analysis of breast morphology changes after inverted T-scar and vertical-scar reduction mammaplasty over 12 months.

    PubMed

    Eder, Maximilian; Klöppel, Markus; Müller, Daniel; Papadopulos, Nikolaos A; Machens, Hans-Günther; Kovacs, Laszlo

    2013-06-01

    One major objective of all types of breast reduction procedures is to achieve a long-lasting, stable and aesthetically pleasing three-dimensional (3-D) breast shape, but current surgical outcome evaluation is limited. This study compares the extent of soft-tissue oedema and breast tissue migration related to 3-D breast morphology changes after inverted T-scar and vertical-scar breast reduction over 12 months. 3-D breast surface scans of patients undergoing inverted T-scar (n=52 breasts) and vertical-scar (n=44 breasts) reduction mammaplasty were obtained preoperatively and 2-3 days, 1 week, 1 month, 3 months, 6 months, 9 months and 12 months postoperatively. 3-D images were analysed at each time point comparing distances, 3-D breast contour deviations (%), breast surface (cm2) and volume (cc) measurements including volumetric distribution between the upper portion (UP) and the lower portion (LP) of the breast (%). Total postoperative breast volume decreased by 11.7% (T-scar) and by 7.8% (vertical-scar) during the first 3 months (both p<0.001) without relevant changes in the following months, indicating that soft-tissue oedema is resolved after 3 months. The T-scar (vertical-scar) group showed a preoperative UP to LP volumetric distribution of 43:57% (45:55%) versus 86:14% (91:9%) immediately after surgery. Breast tissue significantly redistributes (both p=0.001) from the UP to the LP during the first postoperative year by 16.5% (T-scar) and 21% (vertical-scar), resulting in a final UP to LP ratio of 70:30% for both techniques, without further breast contour deviations (both p>0.05) after 6 months (T-scar) and 9 months (vertical-scar). Breast morphological changes after reduction mammaplasty are completed after a period of 3-6 months in the T-scar group and 6-9 months in the vertical-scar group.

  9. The influence of maternal optimality and infant temperament on parenting stress at 12 months among mothers with substance abuse and psychiatric problems.

    PubMed

    Siqveland, Torill S; Olafsen, Kåre S; Moe, Vibeke

    2013-10-01

    The present prospective longitudinal study aimed to investigate the long-term impact of maternal optimality assessed during pregnancy on parenting stress at infant age 12 months. In this study the concept of optimality was utilized to investigate maternal variations regarding resources during pregnancy in relation to later parenting stress, among three different groups of mothers that were recruited from substance abuse treatment, psychiatric outpatient treatment and well-baby clinics respectively. The influence of infant temperament on parenting stress was also examined. All mothers were interviewed during pregnancy. At 12 months, infant temperament (Colorado Childhood Temperament Inventory; Rowe & Plomin, 1977) and stress in the parent and child domain (Parenting Stress Index; Abidin, 1955) were assessed. Results demonstrated higher levels of parenting stress among mothers in the clinical groups, compared to the non-clinical group. Furthermore, it was the maternal psychiatric optimality index in combination with child temperament characteristics (child emotionality) that contributed uniquely to stress in the parent domain, while stress in the child domain was significantly associated only with child temperament characteristics (both child emotionality and soothability). The association between maternal psychiatric optimality assessed in pregnancy, infant temperament and parenting stress when the infants were 12 months old, points to the importance of simultaneously addressing the mothers' own psychological distress, and to support positive mother-infant interactions. Each woman's individual optimality profile may be used to display needs of follow-up in order to prevent enduring effects of non-optimality on parenting stress.

  10. African American community members sustain favorable blood pressure outcomes through 12-month telephone motivational interviewing (MI) maintenance

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Community approaches offer promise for addressing disparities experienced by African Americans in hypertension prevalence, treatment, and control. HUB City Steps, a community-based participatory research lifestyle intervention, tracked participants through a 12-month MI maintenance phase following a...

  11. A Randomized Trial of Computerized vs. In-person Brief Intervention for Illicit Drug Use in Primary Care: Outcomes through 12 months

    PubMed Central

    Gryczynski, Jan; Mitchell, Shannon Gwin; Gonzales, Arturo; Moseley, Ana; Peterson, Thomas R.; Ondersma, Steven J.; O'Grady, Kevin E.; Schwartz, Robert P.

    2014-01-01

    This study examined outcomes through 12 months from a randomized trial comparing computerized brief intervention (CBI) vs. in-person brief intervention (IBI) delivered by behavioral health counselors for adult community health center patients with moderate-level drug misuse (N= 360). Data were collected at baseline, 3-, 6-, and 12-month follow-up, and included the Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST) and laboratory analysis of hair samples. Repeated measures analyses examined differential change over time. There were no significant differences in drug-positive hair tests over time or by condition. Global ASSIST scores decreased in both conditions (p< .001), but there were no significant differences between conditions in overall change across 12 months of follow-up (p= .13). CBI produced greater overall reductions in alcohol (p= .04) and cocaine (p= .02) ASSIST scores than IBI, with initial differences dissipating over time. Computerized brief interventions present a viable alternative to traditional in-person brief interventions. PMID:25282578

  12. The use of actigraphy for assessment of the development of sleep/wake patterns in infants during the first 12 months of life.

    PubMed

    So, Kevin; Adamson, T Michael; Horne, Rosemary S C

    2007-06-01

    Maturation of sleep/wake patterns is one of the most important physiological developments during the first year of life. In this study, we aimed to compare the use of actigraphy and parental sleep diaries (SD) for recording the development of sleep/wake patterns longitudinally in term infants in their own home environments over the first 12 months of life. Twenty healthy term infants (7F/13M) were studied for 3 days each month in their own homes over the first 12 months of life. Sleep/wake patterns were recorded using both SD and actigraphy (AW) (AW64, Mini Mitter Co. Inc., Sunriver, OR, USA). The development of sleep and wake was analysed over 24 h, during the day (08:00-20:00 hours) and during the night (20:00-08:00 hours). A total of 186 studies had complete data sets for both analysis methods. Overall, there was no difference between methods of measurement for determination of the total percentage of sleep or wake over 24 h, or for the total percentage of sleep or wake during the day. However, at night, AW scored less time asleep (73.3 +/- 0.9%) and more time awake (26.7 +/- 0.9%) compared with the SD (80.7 +/- 1.04% and 19 +/- 1.0%, respectively, P < 0.001). Mean percentage sleep during the day decreased from 51% at 1 month to 28% at 12 months with the 1-month values being significantly higher than all other ages, while mean percentage sleep at night was only different between 1 month and 11 and 12 months. In conclusion actigraphy provides a useful tool for assessing the development infant sleep.

  13. Day Hospital Treatment for Anorexia Nervosa: A 12-Month Follow-up Study.

    PubMed

    Abbate-Daga, Giovanni; Marzola, Enrica; De-Bacco, Carlotta; Buzzichelli, Sara; Brustolin, Annalisa; Campisi, Stefania; Amianto, Federico; Migliaretti, Giuseppe; Fassino, Secondo

    2015-09-01

    Day hospitals (DHs) represent a treatment option for anorexia nervosa (AN), a mental disorder that is difficult to treat and has no evidence-based treatments available. We aimed to determine the effectiveness of a DH treatment that was specifically focused on the emotions of severe AN patients. Body mass index and eating psychopathology were the primary outcome measures. Fifty-six adult patients with AN were assessed upon admission, at the end of treatment (EOT) and at a 12-month follow-up evaluation (T18) using Eating Disorders Inventory-2, Beck Depression Inventory, Hamilton Rating Scale for Anxiety and Brief Social Phobia Scale. All participants received a multidisciplinary treatment programme that focused on psychodynamic psychotherapy. Seventy-eight per cent of participants reported positive outcomes at EOT and 68% at T18. Moreover, 82.1% and 65.4% of long-standing patients showed positive outcomes at EOT and T18, respectively. All measures of psychopathology were significantly improved at EOT and were maintained at follow-up. Our DH was effective at treating severe AN patients; however, further investigations of the processes of change are warranted.

  14. Determinants of return to work 12 months after total hip and knee arthroplasty.

    PubMed

    Leichtenberg, C S; Tilbury, C; Kuijer, Ppfm; Verdegaal, Shm; Wolterbeek, R; Nelissen, Rghh; Frings-Dresen, Mhw; Vliet Vlieland, Tpm

    2016-07-01

    Introduction A substantial number of patients undergoing total hip or knee arthroplasty (THA or TKA) do not or only partially return to work. This study aimed to identify differences in determinants of return to work in THA and TKA. Methods We conducted a prospective, observational study of working patients aged <65 years undergoing THA or TKA for osteoarthritis. The primary outcome was full versus partial or no return to work 12 months postoperatively. Factors analysed included preoperative sociodemographic and work characteristics, alongside the Hip Disability and Osteoarthritis Outcome Score (HOOS)/Knee Injury and Osteoarthritis Outcome Score (KOOS), and Oxford Hip and Knee Scores. Results Of 67 THA and 56 TKA patients, 9 (13%) and 10 (19%), respectively, returned partially and 5 (7%) and 6 (11%), respectively, did not return to work 1 year postoperatively. Preoperative factors associated with partial or no return to work in THA patients were self-employment, absence from work and a better HOOS Activities of Daily Living (ADL) subscale score, whereas only work absence was relevant in TKA patients. Type of surgery modified the impact of ADL scores on return to work. Conclusions In both THA and TKA, absence from work affected return to work, whereas self-employment and better preoperative ADL subscale scores were also associated in THA patients. The impact of ADL scores on return to work was modified by type of surgery. These results suggest that strategies aiming to influence modifiable factors should consider THA and TKA separately.

  15. UNC-Emory Infant Atlases for Macaque Brain Image Analysis: Postnatal Brain Development through 12 Months

    PubMed Central

    Shi, Yundi; Budin, Francois; Yapuncich, Eva; Rumple, Ashley; Young, Jeffrey T.; Payne, Christa; Zhang, Xiaodong; Hu, Xiaoping; Godfrey, Jodi; Howell, Brittany; Sanchez, Mar M.; Styner, Martin A.

    2017-01-01

    Computational anatomical atlases have shown to be of immense value in neuroimaging as they provide age appropriate reference spaces alongside ancillary anatomical information for automated analysis such as subcortical structural definitions, cortical parcellations or white fiber tract regions. Standard workflows in neuroimaging necessitate such atlases to be appropriately selected for the subject population of interest. This is especially of importance in early postnatal brain development, where rapid changes in brain shape and appearance render neuroimaging workflows sensitive to the appropriate atlas choice. We present here a set of novel computation atlases for structural MRI and Diffusion Tensor Imaging as crucial resource for the analysis of MRI data from non-human primate rhesus monkey (Macaca mulatta) data in early postnatal brain development. Forty socially-housed infant macaques were scanned longitudinally at ages 2 weeks, 3, 6, and 12 months in order to create cross-sectional structural and DTI atlases via unbiased atlas building at each of these ages. Probabilistic spatial prior definitions for the major tissue classes were trained on each atlas with expert manual segmentations. In this article we present the development and use of these atlases with publicly available tools, as well as the atlases themselves, which are publicly disseminated to the scientific community. PMID:28119564

  16. Extracorporeal shock wave lithotripsy in infants less than 12-month old.

    PubMed

    Turna, Burak; Tekin, Ali; Yağmur, İsmail; Nazlı, Oktay

    2016-10-01

    There is a lack of literature on children compared to adults regarding the long-term effects of extracorporeal shock wave lithotripsy (SWL), specifically in infants. The aim of the present study was to analyze the efficacy and safety of SWL in infants and also evaluate its potential adverse effects in the mid-term. Between May 1999 and December 2013, 36 infants with 39 renal units underwent SWL treatment for kidney stones with an electrohydraulic lithotripter (Dornier MPL 9000/ELMED Multimed Classic). All children were less than 12-month old. The mid-term effects of SWL were examined at the last follow-up by measuring arterial blood pressure, random blood glucose level and ipsilateral kidney size. Evaluation of treatment and its consequences was based on clinical examination, blood tests and conventional imaging (plain abdominal radiography and ultrasound). Overall stone-free rate was 84.6 % after 3-month follow-up without any major complications. Mid-term follow-up was available in 20 of 36 children with a mean follow-up of 3.2 ± 2.8 years (range 0.5-15.3). None of the infants were found to develop new onset of hypertension or diabetes. All treated infant kidneys' sizes were in the normal percentile range. SWL for management of infant kidney stones is effective and safe in the mid-term.

  17. Determinants of return to work 12 months after total hip and knee arthroplasty

    PubMed Central

    Tilbury, C; Kuijer, PPFM; Verdegaal, SHM; Wolterbeek, R; Nelissen, RGHH; Frings-Dresen, MHW; Vliet Vlieland, TPM

    2016-01-01

    Introduction A substantial number of patients undergoing total hip or knee arthroplasty (THA or TKA) do not or only partially return to work. This study aimed to identify differences in determinants of return to work in THA and TKA. Methods We conducted a prospective, observational study of working patients aged <65 years undergoing THA or TKA for osteoarthritis. The primary outcome was full versus partial or no return to work 12 months postoperatively. Factors analysed included preoperative sociodemographic and work characteristics, alongside the Hip Disability and Osteoarthritis Outcome Score (HOOS)/Knee Injury and Osteoarthritis Outcome Score (KOOS), and Oxford Hip and Knee Scores. Results Of 67 THA and 56 TKA patients, 9 (13%) and 10 (19%), respectively, returned partially and 5 (7%) and 6 (11%), respectively, did not return to work 1 year postoperatively. Preoperative factors associated with partial or no return to work in THA patients were self-employment, absence from work and a better HOOS Activities of Daily Living (ADL) subscale score, whereas only work absence was relevant in TKA patients. Type of surgery modified the impact of ADL scores on return to work. Conclusions In both THA and TKA, absence from work affected return to work, whereas self-employment and better preoperative ADL subscale scores were also associated in THA patients. The impact of ADL scores on return to work was modified by type of surgery. These results suggest that strategies aiming to influence modifiable factors should consider THA and TKA separately. PMID:27138849

  18. A pandemic influenza vaccine in India: from strain to sale within 12 months.

    PubMed

    Dhere, Rajeev; Yeolekar, Leena; Kulkarni, Prasad; Menon, Ravi; Vaidya, Vivek; Ganguly, Milan; Tyagi, Parikshit; Barde, Prajakt; Jadhav, Suresh

    2011-07-01

    In the event of a highly pathogenic influenza pandemic, the Indian subcontinent would need 1.2 billion doses of vaccine to immunize its entire population, double if two doses were required to assure immunity. Serum Institute of India Limited (SII) thus became one of six initial grantees of the World Health Organization (WHO) technology transfer initiative to create capacity in developing countries to manufacture H5N1 pandemic influenza vaccine. At the outbreak of the A(H1N1) 2009 influenza pandemic, experience gained from the H5N1 project was used to develop a live attenuated influenza vaccine (LAIV), since this was the only option for the level of surge capacity required for a large-scale immunization campaign in India. SII took <12 months to develop and market its LAIV intranasal vaccine from receipt of the seed strain from WHO. As of November 2010, over 2.5 million persons have been vaccinated with Nasovac(®) with no serious adverse reactions or vaccine failure after 3 months' post-marketing surveillance. The product has been submitted for prequalification by WHO for purchase by United Nations agencies. In parallel, SII also developed an inactivated influenza vaccine, and is currently looking to ensure the sustainability of its influenza vaccine manufacturing capacity.

  19. Social Looking, Social Referencing and Humor Perception in 6-and-12-month-old Infants

    PubMed Central

    Mireault, Gina C.; Crockenberg, Susan C.; Sparrow, John E.; Pettinato, Christine A.; Woodard, Kelly C.; Malzac, Kirsten

    2014-01-01

    Social referencing refers to infants' use of caregivers as emotional referents in ambiguous situations (Walden, 1993). Studies of social referencing typically require ambulation, thereby over-looking younger, non-ambulatory infants (i.e., ≤ 8-mos) and resulting in a widespread assumption that young infants do not employ this strategy. Using a novel approach that does not require mobility, we found that when parents provided unsolicited affective cues during an ambiguous-absurd (i.e., humorous) event, 6-month-olds employ one component of social referencing, social looking Additionally, 6-month-olds who did not laugh at the event were significantly more likely to look toward parents than their counterparts who found the event funny. Sequential analyses revealed that, following a reference to a smiling parent, 6-month olds were more likely to smile at the parent, but by 12 months were more likely to smile at the event suggesting that older infants are influenced by parental affect in humorous situations. The developmental implications of these findings are discussed, as well as the usefulness of studying humor for understanding important developmental phenomena. PMID:25061893

  20. Social looking, social referencing and humor perception in 6- and-12-month-old infants.

    PubMed

    Mireault, Gina C; Crockenberg, Susan C; Sparrow, John E; Pettinato, Christine A; Woodard, Kelly C; Malzac, Kirsten

    2014-11-01

    Social referencing refers to infants' use of caregivers as emotional referents in ambiguous situations (Walden, 1993). Studies of social referencing typically require ambulation, thereby over-looking younger, non-ambulatory infants (i.e., ≤8-months) and resulting in a widespread assumption that young infants do not employ this strategy. Using a novel approach that does not require mobility, we found that when parents provided unsolicited affective cues during an ambiguous-absurd (i.e., humorous) event, 6-month-olds employ one component of social referencing, social looking Additionally, 6-month-olds who did not laugh at the event were significantly more likely to look toward parents than their counterparts who found the event funny. Sequential analyses revealed that, following a reference to a smiling parent, 6-month olds were more likely to smile at the parent, but by 12 months were more likely to smile at the event suggesting that older infants are influenced by parental affect in humorous situations. The developmental implications of these findings are discussed, as well as the usefulness of studying humor for understanding important developmental phenomena.

  1. A 12 month clinical study of bond failures of recycled versus new stainless steel orthodontic brackets.

    PubMed

    Cacciafesta, Vittorio; Sfondrini, Maria Francesca; Melsen, Birte; Scribante, Andrea

    2004-08-01

    The purpose of this prospective longitudinal randomized study was to compare the clinical performance of recycled brackets with that of new stainless steel brackets (Orthos). Twenty patients treated with fixed appliances were included in the investigation. Using a 'split-mouth' design, the dentition of each patient was divided into four quadrants. In 11 randomly selected patients, the maxillary left and mandibular right quadrants were bonded with recycled brackets, and the remaining quadrants with new stainless steel brackets. In the other nine patients the quadrants were inverted. Three hundred and ten stainless steel brackets were examined: 156 were recycled and the remaining 154 were new. All the brackets were bonded with a self-cured resin-modified glass ionomer (GC Fuji Ortho). The number, cause, and date of bracket failures were recorded over 12 months. Statistical analysis was performed by means of a paired t-test, Kaplan-Meier survival estimates, and the log-rank test. No statistically significant differences were found between: (a) the total bond failure rate of recycled and new stainless steel brackets; (b) the upper and lower arches; (c) the anterior and posterior segments. These findings demonstrate that recycling metallic orthodontic brackets can be of benefit to the profession, both economically and ecologically, as long as the orthodontist is aware of the various aspects of the recycling methods, and that patients are informed about the type of bracket that will be used for their treatment.

  2. Greater Efficiency Observed 12 Months Post-Implementation of an Automatic Tube Sorting and Registration System in a Core Laboratory

    PubMed Central

    Erden, Gonul; Taslipinar, Mine Yavuz; Ozturk, Gulfer; Ginis, Zeynep; Bulut, Erdem; Delibas, Namik

    2016-01-01

    Summary Background Sample classification and registration have been recognized as important and time-consuming processes in laboratories. There is increasing pressure on laboratories to automate processes due to intense workload and reduce manual procedures and errors. The aim of the present study was to evaluate the positive effects of an automatic tube registration and sorting system on specimen processing. Methods An automatic tube registration and sorting system (HCTS2000 MK2, m-u-t AG, Wedel, Germany) was evaluated. Turnaround time (TAT), rate of sample rejection and unrealized tests were examined 12 months pre- and post-implementation of the automatic tube sorting and registration system. Results The mean TAT of routine chemistry immunoassay, complete blood cell count (CBC) and coagulation samples were significantly improved (P<0.001). The number of rejected samples and unrealized tests was insignificantly decreased post-implementation of the system (0.4% to 0.2% and 4.5% to 1.4%, respectively) (P>0.05). Conclusions By reducing delays and errors in the preanalytical processing and sorting of samples, significant improvements in specimen processing were observed after implementation of the system. These results suggest that an automatic tube registration and sorting system may also be used to improve specimen processing in a higher-volume core laboratory. PMID:28356858

  3. Breastfeeding practices in military families: a 12-month prospective population-based study in the national capital region.

    PubMed

    Mao, Chad Y; Narang, Sandeep; Lopreiato, Joseph

    2012-02-01

    Breastfeeding practices in military families have not been widely investigated. The objective of this study was to measure the prevalence and duration of breastfeeding among uniformed families and identify factors associated with breastfeeding. We conducted a prospective study of 253 mothers of new infants from July to December 2004. Initial information gathered included demographic data, feeding choices, and intended duration of breastfeeding. Follow-up surveys were conducted until 12 months postpartum. 51% of mothers were breastfeeding at 6 months and 25% at 1 year. Mothers on active duty were equally likely to breastfeed than non-active duty mothers. Officer mothers were 3 times more likely to breastfeed compared to enlisted mothers (p = 0.005). Mothers with higher education were twice as likely to breastfeed longer (p = 0.015). Families participating in Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) were 2.5 times less likely to breastfed at 1 year (p < 0.001). Our study shows a higher percentage of women initiating and maintaining breastfeeding compared to national data, but still less than current American Academy of Pediatrics guidelines. Our study suggests that to improve breastfeeding rates among uniformed families, more attention may need to be directed to younger, enlisted mothers and those families in a lower socioeconomic status or receiving WIC assistance.

  4. 12 month changes in dietary intake of adolescent girls attending schools in low-income communities following the NEAT Girls cluster randomized controlled trial.

    PubMed

    Collins, Clare E; Dewar, Deborah L; Schumacher, Tracy L; Finn, Tara; Morgan, Philip J; Lubans, David R

    2014-02-01

    Poor dietary habits and obesity are more prevalent in lower socio-economic status (SES) communities. The NEAT Girls cluster randomized controlled trial was a school-based obesity prevention program targeting adolescent girls in low SES schools in NSW, Australia. The aim was to evaluate the 12-month impact of key nutrition program messages on dietary intake and food behaviors. Diet was assessed using a validated semi-quantitative food frequency questionnaire (FFQ). Individual foods were categorized into nutrient-dense or energy-dense, nutrient-poor food groups and the percentage contribution to total energy intake calculated. Participants were aged 13.2±0.5years (n=330). There were no statistically significant group-by-time effects for dietary intake or food related behaviors, with 12-month trends suggesting more intervention group girls had improved water intakes (59% consuming⩽three glasses per day to 54% at 12 months vs. 50% to 61% in controls, p=0.052), with a greater proportion consuming < one sweetened beverage per day (24-41% vs. 34-37% in controls, p=0.057). Further research including more intensive nutrition intervention strategies are required to evaluate whether dietary intake in adolescent girls attending schools in low SES communities can be optimized.

  5. The timing of control signals underlying fast point-to-point arm movements.

    PubMed

    Ghafouri, M; Feldman, A G

    2001-04-01

    It is known that proprioceptive feedback induces muscle activation when the facilitation of appropriate motoneurons exceeds their threshold. In the suprathreshold range, the muscle-reflex system produces torques depending on the position and velocity of the joint segment(s) that the muscle spans. The static component of the torque-position relationship is referred to as the invariant characteristic (IC). According to the equilibrium-point (EP) hypothesis, control systems produce movements by changing the activation thresholds and thus shifting the IC of the appropriate muscles in joint space. This control process upsets the balance between muscle and external torques at the initial limb configuration and, to regain the balance, the limb is forced to establish a new configuration or, if the movement is prevented, a new level of static torques. Taken together, the joint angles and the muscle torques generated at an equilibrium configuration define a single variable called the EP. Thus by shifting the IC, control systems reset the EP. Muscle activation and movement emerge following the EP resetting because of the natural physical tendency of the system to reach equilibrium. Empirical and simulation studies support the notion that the control IC shifts and the resulting EP shifts underlying fast point-to-point arm movements are gradual rather than step-like. However, controversies exist about the duration of these shifts. Some studies suggest that the IC shifts cease with the movement offset. Other studies propose that the IC shifts end early in comparison to the movement duration (approximately, at peak velocity). The purpose of this study was to evaluate the duration of the IC shifts underlying fast point-to-point arm movements. Subjects made fast (hand peak velocity about 1.3 m/s) planar arm movements toward different targets while grasping a handle. Hand forces applied to the handle and shoulder/elbow torques were, respectively, measured from a force sensor placed

  6. Low-dose budesonide for maintenance of clinical remission in collagenous colitis: a randomised, placebo-controlled, 12-month trial

    PubMed Central

    Münch, Andreas; Bohr, Johan; Miehlke, Stephan; Benoni, Cecilia; Olesen, Martin; Öst, Åke; Strandberg, Lars; Hellström, Per M; Hertervig, Erik; Armerding, Peter; Stehlik, Jiri; Lindberg, Greger; Björk, Jan; Lapidus, Annika; Löfberg, Robert; Bonderup, Ole; Avnström, Sören; Rössle, Martin; Dilger, Karin; Mueller, Ralph; Greinwald, Roland; Tysk, Curt; Ström, Magnus

    2016-01-01

    Objective This 1-year study aimed to assess low-dose budesonide therapy for maintenance of clinical remission in patients with collagenous colitis. Design A prospective, randomised, placebo-controlled study beginning with an 8-week open-label induction phase in which patients with histologically confirmed active collagenous colitis received budesonide (Budenofalk, 9 mg/day initially, tapered to 4.5 mg/day), after which 92 patients in clinical remission were randomised to budesonide (mean dose 4.5 mg/day; Budenofalk 3 mg capsules, two or one capsule on alternate days) or placebo in a 12-month double-blind phase with 6 months treatment-free follow-up. Primary endpoint was clinical remission throughout the double-blind phase. Results Clinical remission during open-label treatment was achieved by 84.5% (93/110 patients). The median time to remission was 10.5 days (95% CI (9.0 to 14.0 days)). The maintenance of clinical remission at 1 year was achieved by 61.4% (27/44 patients) in the budesonide group versus 16.7% (8/48 patients) receiving placebo (treatment difference 44.5% in favour of budesonide; 95% CI (26.9% to 62.7%), p<0.001). Health-related quality of life was maintained during the 12-month double-blind phase in budesonide-treated patients. During treatment-free follow-up, 82.1% (23/28 patients) formerly receiving budesonide relapsed after study drug discontinuation. Low-dose budesonide over 1 year resulted in few suspected adverse drug reactions (7/44 patients), all non-serious. Conclusions Budesonide at a mean dose of 4.5 mg/day maintained clinical remission for at least 1 year in the majority of patients with collagenous colitis and preserved health-related quality of life without safety concerns. Treatment extension with low-dose budesonide beyond 1 year may be beneficial given the high relapse rate after budesonide discontinuation. Trial registration numbers http://www.clinicaltrials.gov (NCT01278082) and http

  7. Antiretroviral treatment and quality of life in Africans living with HIV: 12-month follow-up in Burkina Faso

    PubMed Central

    Jaquet, Antoine; Garanet, Franck; Balestre, Eric; Ekouevi, Didier K.; Azani, Jean Claude; Bognounou, René; Dah, Elias; Kondombo, Jean Charlemagne; Dabis, François; Drabo, Joseph

    2013-01-01

    Introduction The scale-up of highly active antiretroviral therapy (HAART) has led to a significant improvement in survival of the HIV-positive patient but its effects on health-related quality of life (HRQOL) are less known and context-dependent. Our aim was to assess the temporal changes and factors associated with HRQOL among HIV-positive adults initiating HAART in Burkina Faso. Methods HIV-positive people initiating HAART were prospectively included and followed over a one-year period in three HIV clinics of Ouagadougou. HRQOL was assessed at baseline and at each follow-up visit using physical (PHS) and mental (MHS) summary scores derived from the Medical Outcome Study 36-Item short-form health survey (MOS SF-36) questionnaire. Toxicity related to HAART modification and self-reported symptoms were recorded during follow-up visits. Determinants associated with baseline and changes in both scores over a one-year period were assessed using a mixed linear model. Results A total of 344 patients were included. Their median age at baseline was 37 years [interquartile range (IQR) 30–44] and their median CD4 count was 181 cells/mm3 (IQR 97–269). The mean [standard deviation (SD)] PHS score increased from 45.4 (11.1) at baseline to 60.0 (3.1) at 12 months (p<10−4) and the mean (SD) MHS score from 42.2 (8.7) to 43.9 (3.4) (p<10−2). After one year of treatment, patients that experienced on average two symptoms during follow-up presented with significantly lower PHS (63.9) and MHS (43.8) scores compared to patients that presented no symptoms with PHS and MHS of 68.2 (p<10−4) and 45.3 (p<10−3), respectively. Discussion The use of HAART was associated with a significant increase in both physical and mental aspects of the HRQOL over a 12-month period in this urban African population. Perceived symptoms experienced during follow-up visits were associated with a significant impairment in HRQOL. The appropriate and timely management of reported symptoms during the

  8. Three-dimensional analysis of cranial growth from 6 to 12 months of age.

    PubMed

    Meyer-Marcotty, P; Böhm, H; Linz, C; Kochel, J; Stellzig-Eisenhauer, A; Schweitzer, T

    2014-10-01

    The aim of this study was to generate three-dimensional data of the physiological growth of the infant's cranium in the significant growth phase from 6 to 12 months of age. In a longitudinal observational study non-invasive 3D data using an optical surface scanner were generated of the entire head of 52 Caucasian infants (27 females and 25 males) between the ages of 6 (T1) and 12 (T2) months. The circumference of the head increased by 6.51 per cent (from 43.50 to 46.33cm). Analysis of width and length showed that the head grows 2.84 per cent more in length, resulting in a decrease in the cranial index of 2.52 per cent (from 83.87 to 81.76 per cent). The highest increment observed was in the total volume of the cranium, with an increase of 18.76 per cent (from 1229.01 to 1459.57cm(3)). Comparison of the left and right sides of the head by measuring the diagonal symmetry difference showed a difference of only 0.37cm. Overall, the symmetry-related parameters showed an almost symmetric development of the cranium in infants. The findings should provide valuable information on physiological growth and development of the infant's cranium. Therefore the high growth rate of the cranium in the first year of life suggests that this period is a critical period in which the disruption of developmental processes may have long-lasting effects on the morphology of the cranium with a prognostically unfavourable effect of the further growth of the viscerocranium.

  9. Postpartum Varicose Veins: Supplementation with Pycnogenol or Elastic Compression-A 12-Month Follow-Up.

    PubMed

    Belcaro, Gianni; Dugall, Mark; Luzzi, Roberta; Ippolito, Edmondo; Cesarone, M Rosaria

    2017-03-01

    This open registry aimed to evaluate the clinical evolution of postpartum varicose veins (VVs), in healthy women after the second pregnancy, how these veins regain shape and competence, and possible treatments. The registry included two groups of women: (1) those who used elastic compression stockings, and (2) who used an oral venotonic agent (Pycnogenol, 100 mg/d). A total of 12 evaluation targets were established. Minor symptoms were scored in an analogue scale line. A visual analogue scale line evaluated the overall satisfaction relative to elastic compression or Pycnogenol. Overall 133 women completed the registry evaluation with at least 3 months of follow-up. The resulting two registry groups were comparable. At 3 and 6 months in the Pycnogenol group the number of veins and incompetent sites were lower. At 6 months there were 13.3% of patients with edema in controls versus 3.2% in the Pycnogenol group. Spider veins decreased in Pycnogenol patients. Cramps and other minor symptoms were less common in the Pycnogenol group. In both groups there was a significant improvement at 6 months with better results in the Pycnogenol group. The need for treatment was limited with a decreased need for sclerotherapy, surgery, and conservative treatments in the Pycnogenol group. The overall satisfaction was higher among Pycnogenol patients, and compliance was optimal. Re-evaluation at 12 months indicated that the variations in VVs and spider vein clusters and the associated symptoms did not change. Most remodeling appeared to happen within 6 months after the pregnancy. It was concluded that the use of Pycnogenol improves signs/symptoms of postpartum VVs, and venous function and shape seem to return faster to prepartum, physiological pattern with its use.

  10. Performance of a pilot scale microbial electrolysis cell fed on domestic wastewater at ambient temperatures for a 12 month period.

    PubMed

    Heidrich, Elizabeth S; Edwards, Stephen R; Dolfing, Jan; Cotterill, Sarah E; Curtis, Thomas P

    2014-12-01

    A 100-L microbial electrolysis cell (MEC) was operated for a 12-month period fed on raw domestic wastewater at temperatures ranging from 1°C to 22°C, producing an average of 0.6 L/day of hydrogen. Gas production was continuous though decreased with time. An average 48.7% of the electrical energy input was recovered, with a Coulombic efficiency of 41.2%. COD removal was inconsistent and below the standards required. Limitations to the cell design, in particular the poor pumping system and large overpotential account for many of the problems. However these are surmountable hurdles that can be addressed in future cycles of pilot scale research. This research has established that the biological process of an MEC will to work at low temperatures with real wastewater for prolonged periods. Testing and demonstrating the robustness and durability of bioelectrochemical systems far beyond that in any previous study, the prospects for developing MEC at full scale are enhanced.

  11. The management of lichen sclerosus in a genitourinary medicine setting: a 12-month retrospective case-notes review.

    PubMed

    Challenor, Rachel

    2015-04-01

    A retrospective case-notes review was undertaken of all women with lichen sclerosus seen during a 12-month period to review their characteristics and care. A total of 273 case-notes were reviewed. The mean age was 61 years (range, 14-94), and the mean duration of symptoms was 6.4 years (range, 1-50). The mean age at diagnosis was 55 years (range, 7-92). Sixty-two (23%) had at least one other autoimmune condition. Autoimmune conditions were seven times more frequent overall compared with United Kingdom prevalences. On-going symptoms were reported as none/minimal in 196 (72%), moderate in 65 (24%) and severe in 12 (4%). A total of 233 women (85%) had on-going treatment with clobetasol propionate (Dermovate) ointment with a mode of eight applications per month (range, 0-30). Forty-three women (16%) reported sexual dysfunction and 13 (5%) had needed at least one surgical procedure to restore sexual function. Eighty-six (32%) had undergone at least one biopsy. Nine squamous cell cancers (3%) had been diagnosed in six women (2%). These patients were managed in line with all current guidance. It is surprising that there is still no evidence to direct long-term management.

  12. Plasma arc versus halogen light curing of orthodontic brackets: a 12-month clinical study of bond failures.

    PubMed

    Sfondrini, Maria Francesca; Cacciafesta, Vittorio; Scribante, Andrea; Klersy, Catherine

    2004-03-01

    The purpose of this randomized clinical trial was to evaluate the clinical performance of brackets cured with 2 different light-curing units (conventional halogen light and plasma arc light); 83 patients treated with fixed appliances were included in the study. With the "split-mouth" design, each patient's mouth was divided into 4 quadrants. In 42 randomly selected patients, the maxillary left and mandibular right quadrants were cured with the halogen light, and the remaining quadrants were cured with the plasma arc light. In the other 41 patients, the quadrants were inverted. A total of 1434 stainless steel brackets were examined: 717 were cured with a conventional halogen light for 20 seconds; the remaining 717 were cured with the plasma arc light for 5 seconds. The number, cause, and date of bracket failures were recorded for each light-curing unit over 12 months. Statistical analysis was performed with the Fisher exact test, the Kaplan-Meier survival estimates, and the log-rank test. No statistically significant differences were found between the total bond failure rates of the brackets cured with the halogen light and those cured with the plasma arc light. Neither were significant differences found when the clinical performances of the maxillary versus mandibular arches or the anterior versus posterior segments were compared. These findings demonstrate that plasma arc lights are an advantageous alternative to conventional light curing, because they significantly reduce the curing time of orthodontic brackets without affecting the bond failure rate.

  13. Finasteride in the treatment of Taiwanese men with androgenetic alopecia: a 12-month open-label study.

    PubMed

    Lin, Jeng-Hsien; Chen, Wen-Chieh

    2002-08-01

    Finasteride 1 mg/day is effective in the treatment of androgenetic alopecia (AGA). Our open-label study assessed the efficacy and safety of finasteride for the treatment of Taiwanese men with AGA. We enrolled 34 Taiwanese men (aged 18-40 yr) with AGA of modified Norwood/Hamilton scale (MNHS) grade II-V. In investigator assessments at 12 months, five of 21 subjects (23.8%) had two-grade improvement in MNHS grade and 12 of 21 subjects (57.1%) had one-grade improvement; the others remained at the same grade. In global photographic evaluation, five of 31 subjects (15.1%) had observable hair growth at 6 months and 11 of 21 subjects (52.4%) had observable hair growth at 12 months. Patient self-assessment of hair growth was favorable across all questions in the treatment course, more significantly at 12 months than at 6 months; nine of 21 subjects (42.9%) were satisfied with their overall appearance at 12 months. Serum prostate specific antigen levels had decreased by 23.4% at 12 months. Adverse effects, including abnormal liver function (5/34), were minimal, and the causal relationship with finasteride could not be established. Thus, in Taiwanese men with AGA, finasteride 1 mg/day for 1 year slowed the progression of hair loss and increased hair growth.

  14. High Chance of Late Recovery of Urinary and Erectile Function Beyond 12 Months After Radical Prostatectomy.

    PubMed

    Mandel, Philipp; Preisser, Felix; Graefen, Markus; Steuber, Thomas; Salomon, Georg; Haese, Alexander; Michl, Uwe; Huland, Hartwig; Tilki, Derya

    2016-10-12

    Urinary incontinence (UI) and erectile dysfunction (ED) after radical prostatectomy (RP) can impose a strong burden. While most studies focus on certain time points after RP when analyzing functional outcome, there is paucity of evidence on late functional recovery in patients with UI or ED at 12 mo after RP. Using longitudinal patient data from a large European single-center, we show that the chance of regaining continence among patients (n=974) with UI (≥1 pad/24h) at 12 mo after RP was 38.6% after 24 mo and 49.7% after 36 mo. The corresponding rates for patients (n=1115) with ED (defined as International Index of Erectile Function-5 score <18) at 12 mo after RP were 30.8% at 24 mo and 36.5% at 36 mo after RP. Patients with postoperative UI or ED 12 mo after RP should be counseled about their good chance of achieving continence or potency in the course of time.

  15. Taming the Exceptional Points of Parity-Time Symmetric Acoustics

    NASA Astrophysics Data System (ADS)

    Dubois, Marc; Shi, Chengzhi; Chen, Yun; Cheng, Lei; Ramezani, Hamidreza; Wang, Yuan; Zhang, Xiang

    Parity-time (PT) symmetric concept and development lead to a wide range of applications including coherent perfect absorbers, single mode lasers, unidirectional cloaking and sensing, and optical isolators. These new applications and devices emerge from the existence of a phase transition in PT symmetric complex-valued potential obtained by balancing gain and loss materials. However, the systematic extension of such devices is adjourned by the key challenge in the management of the complex scattering process within the structure in order to engineer PT phase and exceptional points. Here, based on active acoustic elements, we experimentally demonstrate the simultaneous control of complex-valued potentials and multiple interference inside the structure at any given frequency. This method broadens the scope of applications for PT symmetric devices in many fields including optics, microwaves, electronics, which are crucial for sensing, imaging, cloaking, lasing, absorbing, etc.

  16. Analysis of correlation between initial alveolar bone density and apical root resorption after 12 months of orthodontic treatment without extraction

    PubMed Central

    Scheibel, Paula Cabrini; Ramos, Adilson Luiz; Iwaki, Lilian Cristina Vessoni; Micheletti, Kelly Regina

    2014-01-01

    OBJECTIVE: The aim of the present study was to investigate the correlation between initial alveolar bone density of upper central incisors (ABD-UI) and external apical root resorption (EARR) after 12 months of orthodontic movement in cases without extraction. METHODS: A total of 47 orthodontic patients 11 years old or older were submitted to periapical radiography of upper incisors prior to treatment (T1) and after 12 months of treatment (T2). ABD-UI and EARR were measured by means of densitometry. RESULTS: No statistically significant correlation was found between initial ABD-UI and EARR at T2 (r = 0.149; p = 0.157). CONCLUSION: Based on the present findings, alveolar density assessed through periapical radiography is not predictive of root resorption after 12 months of orthodontic treatment in cases without extraction. PMID:25715722

  17. Storage Life of Fully Compounded Rubber Stocks. Part 2: 12 Months’ Storage Testing. Part 3: Subsequent Ageing Behaviour

    DTIC Science & Technology

    1973-04-01

    AD-AO08 566 STORAGE LIFE OF FULLY COMPOUNDED RUBBER STOCKS. PART 2: 12 MONTHS" STORAGE TESTING. PART 3: SUBSEQUENT AGEING BEHAVIOUR K. J. Ledbury, et...Compounded Rubber Stocks Part 2. 12 Months’ Storage Testing Part 3. Subsequent Ageing Behaviour K. J. Ledbury R. W. Richards A. L. Stokoo April 1973 DDC I...Agency’s 6a.Sponsoring Agency (Contract Authority) me and Location Code (if known) 7. Title 3TORAGE LIFE OF FULLY COMPOUIDED RUBBER STOCKS PART Z: 12

  18. Associating spatial diversity features of radiologically defined tumor habitats with epidermal growth factor receptor driver status and 12-month survival in glioblastoma: methods and preliminary investigation

    PubMed Central

    Lee, Joonsang; Narang, Shivali; Martinez, Juan J.; Rao, Ganesh; Rao, Arvind

    2015-01-01

    Abstract. We analyzed the spatial diversity of tumor habitats, regions with distinctly different intensity characteristics of a tumor, using various measurements of habitat diversity within tumor regions. These features were then used for investigating the association with a 12-month survival status in glioblastoma (GBM) patients and for the identification of epidermal growth factor receptor (EGFR)-driven tumors. T1 postcontrast and T2 fluid attenuated inversion recovery images from 65 GBM patients were analyzed in this study. A total of 36 spatial diversity features were obtained based on pixel abundances within regions of interest. Performance in both the classification tasks was assessed using receiver operating characteristic (ROC) analysis. For association with 12-month overall survival, area under the ROC curve was 0.74 with confidence intervals [0.630 to 0.858]. The sensitivity and specificity at the optimal operating point (threshold=0.5) on the ROC were 0.59 and 0.75, respectively. For the identification of EGFR-driven tumors, the area under the ROC curve (AUC) was 0.85 with confidence intervals [0.750 to 0.945]. The sensitivity and specificity at the optimal operating point (threshold=0.166) on the ROC were 0.76 and 0.83, respectively. Our findings suggest that these spatial habitat diversity features are associated with these clinical characteristics and could be a useful prognostic tool for magnetic resonance imaging studies of patients with GBM. PMID:26835490

  19. 12-month intravascular ultrasound observations from BiOSS® first-in-man studies.

    PubMed

    Gil, Robert J; Bil, Jacek; Costa, Ricardo A; Gil, Katarzyna E; Vassiliev, Dobrin

    2016-09-01

    The aim of this study was to analyze the difference in neointima pattern assessed by intravascular ultrasound (IVUS) between two dedicated bifurcation stents, BiOSS® Expert and BiOSS® LIM at 12-month follow-up. This manuscript reports IVUS findings obtained from the analysis of patients enrolled into first-in-man registries initially assessing the BiOSS Expert® (paclitaxel) and BiOSS LIM® (sirolimus) stents. Quantitative angiographic analysis was performed pre, post-stenting, and at follow-up. IVUS examination was performed at 12 months. There were analyzed 34 cases (BiOSS Expert® 11 patients, BiOSS LIM® 23 patients). Procedural characteristics in the two groups were similar, except for rates of main vessel predilatation and FKB/POT, which were higher in BiOSS® LIM group, 54.5 % vs 73.9 % (P < 0.05) and 0 % vs 39.1 % (P < 0.05), respectively. When comparing late lumen loss (LLL) for both stents there were significantly bigger values for main vessel and main branch in the BiOSS® Expert group, but not in side branch. Intravascular ultrasound examination showed that in the BiOSS LIM® group comparing with the BiOSS Expert® group there was lower neointima burden in the whole stent (24.7 ± 7.5 % vs 19.4 ± 8.6 %, P < 0.05) as well as in main vessel (22.8 ± 5.6 % vs 16.9 ± 6.1 %, P < 0.05) and main branch (36.1 ± 6.5 % vs 27.6 ± 8.7 %, P < 0.05), but not at the level of bifurcation (15.1 ± 3.8 % vs 13.6 ± 5.4 %, P = NS). In addition, we found that final kissing balloon/proximal optimization technique (FKB/POT) was associated with significantly smaller value of LLL in main vessel (0.24 ± 0.09 mm vs 0.32 ± 0.14 mm, P < 0.05), which in IVUS analysis resulted in smaller neointima burden in main vessel (13.7 ± 3.9 % vs 18.9 ± 4.45 %, P < 0.05) as well as at the bifurcation site (12.6 ± 4.1 % vs 14.1 ± 2.4 %, P < 0.05). The

  20. 77 FR 57921 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List 14 Aquatic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-18

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the basalt juga (Juga new species (n. sp.) 2), canary duskysnail (Colligyrus convexus), cinnamon juga (Juga n. sp. 3), Columbia duskysnail (Colligyrus n. sp. 1), Fredenburg pebblesnail (Fluminicola n. sp. 11), Goose Valley pebblesnail (Fluminicola anserinus), Hat Creek pebblesnail (Fluminicola......

  1. 12-Month and Lifetime Prevalence of Suicide Attempts among Black Adolescents in the National Survey of American Life

    ERIC Educational Resources Information Center

    Joe, Sean; Baser, Raymond S.; Neighbors, Harold W.; Caldwell, Cleopatra H.; Jackson, James S.

    2009-01-01

    The data from the National Survey of American life on the suicidal behavior of 1,170 African American and Caribbean black adolescents aged 13 to 17 shows that black adolescents report having a lifetime prevalence of 7.5 percent for suicidal ideation and 2.7 percent for attempts. The 12-month prevalence of suicidal ideation is 3.2 percent and…

  2. 77 FR 52650 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the Platte...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-30

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the Platte River caddisfly (Ironoquia plattensis) as an endangered or threatened species and to designate critical habitat under the Endangered Species Act of 1973, as amended. After review of all available scientific and commercial information, we find that listing the Platte River caddisfly as......

  3. Correlation of serum KL-6 and CC16 levels with neurodevelopmental outcome in premature infants at 12 months corrected age

    PubMed Central

    Zhang, Zhiqun; Lu, Hui; Zhu, Yunxia; Xiang, Junhua; Huang, Xianmei

    2015-01-01

    The aim of this study was to evaluate KL-6 and CC16 levels and their correlation with neurodevelopmental outcome among very low birth weight pre-term infants at 12 months corrected age. This prospective cohort study was performed from 2011 to 2013 by enrolling pre-term neonates of gestational age ≤ 32 weeks and birth weight ≤ 1500 g. Serum KL-6 and CC16 levels were determined 7 days after birth and their correlation with neurodevelopment was evaluated using Gesell Mental Developmental Scales. Of the 86 eligible pre-term infants, 63 completed follow-up, of which 15 had bronchopulmonary dysplasia. At 12 months corrected age, 49 infants had favorable outcomes and 14 infants had poor neurodevelopmental outcome. KL-6 levels were higher and CC16 levels were lower in infants with poor neurodevelopmental outcome compared with those infants who had favourable neurodevelopmental outcome. Serum KL-6 levels less than 90.0 ng/ml and CC16 levels greater than 320.0 pg/ml at 7 days of life were found to be predictive of a favourable outcome at 12 months corrected age. These biological markers could predict neurodevelopmental outcome at 12 months corrected age in very low birth weight premature infants, and help the clinician plan early therapeutic interventions to minimize or avoid poor neurodevelopmental outcome. PMID:25631862

  4. Iron deficiency anemia among Jewish and Arab infants at 6 and 12 months of age in Hadera, Israel.

    PubMed

    Lavon, B; Tulchinsky, T H; Preger, M; Said, R; Kaufman, S

    1985-02-01

    Infants attending six Family Health Centers of the Israel Ministry of Health in various Jewish and Arab localities in the Hadera subdistrict were examined for hemoglobin levels at 6 and 12 months of age. The prevalence of anemia (hemoglobin less than 11 g/dl) among Jewish infants rose from a total of 44.7 to 60% from 6 to 12 months. For the Arab infants, the prevalence of anemia increased from a total of 43.7% at 6 months to 71.0% at 12. The prevalence of severe anemia (less than 10 g/dl) for the Jewish infants rose from 4.5 to 13.1% and for the Arab infants from 7.7 to 19.6%. Of the Jewish infants with a hemoglobin level less than 10 g/dl at 6 months, 50% were still less than 10 g/dl at 12 months. Of the Arab infants less than 10 g/dl at 6 months, 36.4% were still at that level at 12 months. The lack of routine iron supplementation as a preventive procedure and the routine use of cow's milk for infant feeding are the probable causes of this high prevalence of iron deficiency anemia.

  5. 77 FR 19597 - Listing Endangered and Threatened Species; 12-Month Finding on a Petition To List Chinook Salmon...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-02

    ...We, NMFS, announce a 12-month finding on a petition to list the Chinook salmon (Oncorhynchus tshawytscha) in the Upper Klamath and Trinity Rivers Basin (UKTR) as threatened or endangered and designate critical habitat under the Endangered Species Act (ESA). We have reviewed the status of the UKTR Chinook salmon Evolutionarily Significant Unit (ESU) and considered the best scientific and......

  6. Validity of the Fine Motor Area of the 12-Month Ages and Stages Questionnaire in Infants Following Major Surgery

    ERIC Educational Resources Information Center

    Smith, Cally; Wallen, Margaret; Walker, Karen; Bundy, Anita; Rolinson, Rachel; Badawi, Nadia

    2012-01-01

    The Ages and Stages Questionnaires (ASQ) are parent-report screening tools to identify infants at risk of developmental difficulties. The purpose of this study was to examine validity and internal reliability of the fine motor developmental area of the ASQ, 2nd edition (ASQ2-FM) for screening 12-month-old infants following major surgery. The…

  7. 76 FR 42631 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List Pinus...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-19

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list Pinus albicaulis (whitebark pine) as threatened or endangered and to designate critical habitat under the Endangered Species Act of 1973, as amended (Act). After review of all available scientific and commercial information, we find that listing P. albicaulis as threatened or endangered is......

  8. The First Year Inventory: A Longitudinal Follow-Up of 12-Month-Old to 3-Year-Old Children

    ERIC Educational Resources Information Center

    Turner-Brown, Lauren M.; Baranek, Grace T.; Reznick, J Steven; Watson, Linda R.; Crais, Elizabeth R.

    2013-01-01

    The First Year Inventory is a parent-report measure designed to identify 12-month-old infants at risk for autism spectrum disorder. First Year Inventory taps behaviors that indicate risk in the developmental domains of sensory--regulatory and social--communication functioning. This longitudinal study is a follow-up of 699 children at 3 years of…

  9. 76 FR 44547 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the Giant...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-26

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the giant Palouse earthworm (Driloleirus americanus) as threatened or endangered as petitioned, and to designate critical habitat under the Endangered Species Act of 1973, as amended (Act). After review of all available scientific and commercial information, we find that listing the giant......

  10. 75 FR 57720 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition to List Agave...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-22

    ...We, the Fish and Wildlife Service (Service), announce a 12- month finding on a petition to list the plant Agave eggersiana (no common name) as endangered under the Endangered Species Act of 1973, as amended (Act). After review of all available scientific and commercial information, we find that listing A. eggersiana is warranted. Currently, however, listing A. eggersiana is precluded by higher......

  11. 75 FR 78029 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the North...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-14

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the North American wolverine (Gulo gulo luscus) as an endangered or threatened species under the Endangered Species Act of 1973, as amended (Act). After review of all available scientific and commercial information, we find that the North American wolverine occurring in the contiguous United......

  12. 75 FR 67925 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition to List Cirsium...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-04

    ...We, the U.S. Fish and Wildlife Service, announce a 12-month finding on a petition to list Cirsium wrightii (Wright's marsh thistle) as endangered or threatened and to designate critical habitat under the Endangered Species Act of 1973, as amended. After review of all available scientific and commercial information, we find that listing C. wrightii as endangered or threatened throughout its......

  13. 75 FR 56028 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition to List Sprague's...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-15

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the Sprague's pipit (Anthus spragueii) as endangered or threatened and to designate critical habitat under the Endangered Species Act of 1973, as amended (ESA). After review of all available scientific and commercial information, we find that listing the Sprague's pipit as endangered or......

  14. 75 FR 78093 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the Sonoran...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-14

    ...We, the U.S. Fish and Wildlife Service, announce a 12-month finding on a petition to list the Sonoran population of the desert tortoise (Gopherus agassizii) as endangered or threatened and to designate critical habitat under the Endangered Species Act of 1973, as amended (Act). After review of all available scientific and commercial information, we find that listing the Sonoran population of......

  15. Disruptions in Brain Networks of Older Fallers Are Associated with Subsequent Cognitive Decline: A 12-Month Prospective Exploratory Study

    PubMed Central

    Hsu, Chun Liang; Voss, Michelle W.; Handy, Todd C.; Davis, Jennifer C.; Nagamatsu, Lindsay S.; Chan, Alison; Bolandzadeh, Niousha; Liu-Ambrose, Teresa

    2014-01-01

    Cognitive impairment and impaired mobility are major public health concerns. There is growing recognition that impaired mobility is an early biomarker of cognitive impairment and dementia. The neural basis for this association is currently unclear. We propose disrupted functional connectivity as a potential mechanism. In this 12-month prospective exploratory study, we compared functional connectivity of four brain networks– the default mode network (DMN), fronto-executive network (FEN), fronto-parietal network (FPN), and the primary motor sensory network (SMN) – between community-dwelling older adults with ≥ two falls in the last 12 months and their non-falling counterparts (≤ one fall in the last 12 months). Functional connectivity was examined both at rest and during a simple motor tapping task. Compared with non-fallers, fallers showed more connectivity between the DMN and FPN during right finger tapping (p = 0.04), and significantly less functional connectivity between the SMN and FPN during rest (p≤0.05). Less connectivity between the SMN and FPN during rest was significantly associated with greater decline in both cognitive function and mobility over the12-month period (r = −0.32 and 0.33 respectively; p≤0.04). Thus, a recent history of multiple falls among older adults without a diagnosis of dementia may indicate sub-clinical changes in brain function and increased risk for subsequent decline. PMID:24699668

  16. 75 FR 30757 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition to Delist Cirsium...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-02

    ...We, the U.S. Fish and Wildlife Service, announce a 12-month finding on a petition to remove Cirsium vinaceum (Sacramento Mountains thistle) from the Federal List of Threatened and Endangered Plants under the Endangered Species Act. After reviewing the best scientific and commercial information available, we find that delisting C. vinaceum is not warranted. However, we ask the public to submit......

  17. 76 FR 61855 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the Cactus...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-05

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the cactus ferruginous pygmy-owl (Glaucidium brasilianum cactorum) as threatened or endangered and to designate critical habitat under the Endangered Species Act of 1973, as amended (Act). Additionally, the petition requested that we recognize and list a western subspecies of the cactus......

  18. 78 FR 61763 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List Kittlitz's...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-03

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the Kittlitz's murrelet (Brachyramphus brevirostris) as an endangered or threatened species and to designate critical habitat under the Endangered Species Act of 1973, as amended (Act). After a review of the best available scientific and commercial information, we find that listing the......

  19. 75 FR 13909 - Endangered and Threatened Wildlife and Plants; 12-Month Findings for Petitions to List the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-23

    ...We, the U.S. Fish and Wildlife Service (Service), announce three 12-month findings on petitions to list three entities of the greater sage-grouse (Centrocercus urophasianus) as threatened or endangered under the Endangered Species Act of 1973, as amended (Act). We find that listing the greater sage-grouse (rangewide) is warranted, but precluded by higher priority listing actions. We will......

  20. 76 FR 7633 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition to List the Pacific...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-10

    ...We, the U.S. Fish and Wildlife Service, announce a 12-month finding on a petition to list the Pacific walrus (Odobenus rosmarus divergens) as endangered or threatened and to designate critical habitat under the Endangered Species Act of 1973, as amended. After review of all the available scientific and commercial information, we find that listing the Pacific walrus as endangered or threatened......

  1. Immunogenicity and safety of a trivalent inactivated 2010-2011 influenza vaccine in Taiwan infants aged 6-12 months.

    PubMed

    Hwang, Kao-Pin; Hsu, Yu-Lung; Hsieh, Tsung-Hsueh; Lin, Hsiao-Chuan; Yen, Ting-Yu; Wei, Hsiu-Mei; Lin, Hung-Chih; Chen, An-Chyi; Chow, Julie Chi; Huang, Li-Min

    2014-05-01

    This prospective study aimed to investigate the immune responses and safety of an influenza vaccine in vaccine-naïve infants aged 6-12 months, and was conducted from November 2010 to May 2011. Fifty-nine infants aged 6-12 months received two doses of trivalent inactivated influenza vaccine 4 weeks apart. Hemagglutination inhibition titers were measured 4 weeks after the two doses of study vaccine. Based on the assumption that a hemagglutination inhibition titer of 1:40 or greater against the antigen would be protective in adults, two doses of the study vaccine generated a protective immune response of 63.2% against influenza A(H1N1), 82.5% against influenza A(H3N2) and 38.6% against influenza B viruses in infants aged 6-12 months. The geometric mean fold rises against influenza type A and B viruses also met the European Medicines Agency criteria for flu vaccines. The solicited events within 7 days after vaccination were mild in intensity. No deaths or adverse events such as optic neuritis, cranial neuropathy, and brachial neuropathy or Guillain-Barre syndrome were reported. Two doses of inactivated influenza vaccine were well tolerated and induced a protective immune response against influenza in infants aged 6-12 months.

  2. 77 FR 61375 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on Petitions To List the Mexican...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-09

    ... Fish and Wildlife Service 50 CFR Part 17 Endangered and Threatened Wildlife and Plants; 12-Month Finding on Petitions To List the Mexican Gray Wolf as an Endangered Subspecies or Distinct Population... two petitions to list the Mexican gray wolf (Canis lupus baileyi) (Mexican wolf) as an...

  3. Airport Activity Statistics of Certificated Route Air Carriers, 12 Months Ending December 31, 1984.

    DTIC Science & Technology

    1984-12-31

    influence a Convenience and Necessity issued by the Department of community’s ability to generate air carrier or general aviation Transportation (DOT...the hub . c ft GENERAL NOTES CwrDATA MINNG t - ’rd This publication don not include complete yearly data for the Horzon A r Dec. 164 following list of...in a certificated point, and a point may be served as a single community. through more than one airport.) Interlcopoerl operatios. In general

  4. Pixel timing correction in time-lapsed calcium imaging using point scanning microscopy.

    PubMed

    Boiroux, Dimitri; Oke, Yoshihiko; Miwakeichi, Fumikazu; Oku, Yoshitaka

    2014-11-30

    In point scanning imaging, data are acquired by sequentially scanning each pixel of a predetermined area. This way of scanning leads to time delays between pixels, especially for lower scanning speed or large scanned areas. Therefore, experiments are often performed at lower framerates in order to ensure a sufficient signal-to-noise ratio, even though framerates above 30 frames per second are technically feasible. For these framerates, we suggest that it becomes crucial to correct the time delay between image pixels prior to analyses. In this paper, we apply temporal interpolation (or pixel timing correction) for calcium imaging in two-photon microscopy as an example of fluorescence imaging. We present and compare three interpolation methods (linear, Lanczos and cubic B-spline). We test these methods on a simulated network of coupled bursting neurons at different framerates. In this network, we introduce a time delay to simulate a scanning by point scanning microscopy. We also assess these methods on actual microscopic calcium imaging movies recorded at usual framerates. Our numerical results suggest that point scanning microscopy imaging introduces statistically significant time delays between image pixels at low frequency. However, we demonstrate that pixel timing correction compensates for these time delays, regardless of the used interpolation method.

  5. Parent-assessed quality of life among adolescents undergoing orthodontic treatment: a 12-month follow-up

    PubMed Central

    Abreu, Lucas Guimarães; Melgaço, Camilo Aquino; Abreu, Mauro Henrique Nogueira Guimaraes; Lages, Elizabeth Maria Bastos; Paiva, Saul Martins

    2015-01-01

    Objective: To assess parents' and caregivers' view of the first twelve months of adolescents' orthodontic treatment with fixed appliances and to assess the evaluative properties of the Brazilian version of the Parental-Caregiver Perceptions Questionnaire (P-CPQ) in the orthodontic setting. Methods: Data from a sample of 96 parents and caregivers of adolescents undergoing orthodontic treatment with fixed appliances were collected by means of P-CPQ. Assessments were performed before banding and bracket bonding (T1) and 12 months after placement of fixed appliances (T2). Statistical analysis included Wilcoxon signed-rank test for the overall P-CPQ score and Bonferroni correction for P-CPQ subscales. The evaluative properties of the P-CPQ were assessed through responsiveness calculation and the minimally clinical important difference (MCID). Results: Among the 96 participants, 76 were mothers of patients, 16 were fathers, and four were other family members. Adolescents' mean age was 11.49 ± 0.50 years. Most families earned equal to or less than three times the Brazilian monthly minimum wage. There was significant improvement in the emotional and social well-being subscales (p < 0.001), which contributed to improve patient's overall quality of life (p< 0.001). Reductions in scores were associated with clinically meaningful moderate changes in the overall score as well as in the emotional and social well-being subscales. The MCID was 6.16 for the P-CPQ overall score. Conclusion: Parents and caregivers reported significant improvement in the quality of life of adolescents undergoing orthodontic treatment with fixed appliances. PMID:26560827

  6. Controlled clinical trial addressing teeth whitening with hydrogen peroxide in adolescents: a 12-month follow-up

    PubMed Central

    Pinto, Marcelo Mendes; Gonçalves, Marcela Leticia Leal; da Mota, Ana Carolina Costa; Deana, Alessandro Melo; Olivan, Silvia Regina; Bortoletto, Carolina; de Godoy, Camila Haddad Leal; Vergilio, Katia Lumi Tanikawa; Altavista, Olga Maria; Motta, Lara J; Bussadori, Sandra Kalil

    2017-01-01

    OBJECTIVES: To evaluate the colorimetric change in incisors and canines of adolescents aged 12 to 20 years submitted to at-home whitening and to evaluate satisfaction, sensitivity and discomfort during the procedures through a questionnaire. METHOD: Thirty adolescents were randomly assigned to the following groups: 1) 6.0% hydrogen peroxide (White Class with calcium – FGM); 2) 7.5% hydrogen peroxide (White Class with calcium - FGM); 3) 10% hydrogen peroxide (Oral B 3D White – Oral-B); 4) Control group – placebo. Assessments were performed prior to treatment as well as at 7, 30, 180 and 360 days after treatment. Friedman’s ANOVA was used to analyze color. The Kruskal-Wallis test followed by Dunn’s post hoc test was used to compare the groups at the different evaluation times. Answers on the questionnaires were ranked, and non-parametrical tests were employed. The groups were compared in each period using the Kruskal-Wallis test followed by the Student-Newman-Keuls test. Categorical data were analyzed using Fisher's exact test, and the Wilcoxon test was used for the analysis of different periods. P-values were corrected using the Hyan-Holm step-down Bonferroni procedure. Clinicaltrials.gov: NCT01998386. RESULTS: Similar results were obtained one month after treatment with both tooth whitening gels and whitening strips. Patients were partially satisfied with the treatment after the first and second weeks and would recommend it. All products demonstrated color stability after 12 months of follow-up. CONCLUSIONS: The bleaching procedure was efficient, and the patients could perceive its result. Further investigations are needed to determine the effects of bleaching on young teeth. PMID:28355362

  7. Patterns of mother-infant interaction from 3 to 12 months among dyads with substance abuse and psychiatric problems.

    PubMed

    Siqveland, Torill S; Haabrekke, Kristin; Wentzel-Larsen, Tore; Moe, Vibeke

    2014-11-01

    The aim of this study was to investigate the development of mother-infant interaction patterns from 3 to 12 months among three groups of mother-baby pairs recruited during pregnancy: one group from residential substance abuse treatment (n=28), a second group from psychiatric outpatient treatment (n=22), and a third group from well-baby clinics (n=30). The mother-infant interaction at 3 and 12 months was assessed by the Parent-Child Early Relational Assessment (PCERA), which consists of maternal, child and dyadic subscales (Clark, 2006). Linear mixed effects models were used to analyze group differences and the changes in mother-infant interaction from 3 to 12 months. At 3 months, pairwise comparisons showed that the group with psychiatric problems had significantly more difficulties in the mother-infant interaction than the two other groups. The group with substance abuse problems was not significantly different from the two other groups. At 12 months, the mother-infant pairs in the substance abuse group showed significantly more relational disturbances than the non-clinical pairs, as well as a poorer affective quality of interaction than the dyads in the group with psychiatric problems. Analysis of change from 3 to 12 months showed that difficulties in the interaction increased among the mother-baby pairs in the substance abuse group, while improvements were displayed in the two other groups. These results underline that mother-infant pairs at double risk due to maternal substance abuse and other non-optimal factors, are in need for long-term follow up in order to prevent the development of negative interactional patterns.

  8. Predicting the Onset of Anxiety Syndromes at 12 Months in Primary Care Attendees. The PredictA-Spain Study

    PubMed Central

    Moreno-Peral, Patricia; Luna, Juan de Dios; Marston, Louise; King, Michael; Nazareth, Irwin; Motrico, Emma; GildeGómez-Barragán, María Josefa; Torres-González, Francisco; Montón-Franco, Carmen; Sánchez-Celaya, Marta; Díaz-Barreiros, Miguel Ángel; Vicens, Catalina; Muñoz-Bravo, Carlos; Bellón, Juan Ángel

    2014-01-01

    Background There are no risk algorithms for the onset of anxiety syndromes at 12 months in primary care. We aimed to develop and validate internally a risk algorithm to predict the onset of anxiety syndromes at 12 months. Methods A prospective cohort study with evaluations at baseline, 6 and 12 months. We measured 39 known risk factors and used multilevel logistic regression and inverse probability weighting to build the risk algorithm. Our main outcome was generalized anxiety, panic and other non-specific anxiety syndromes as measured by the Primary Care Evaluation of Mental Disorders, Patient Health Questionnaire (PRIME-MD-PHQ). We recruited 3,564 adult primary care attendees without anxiety syndromes from 174 family physicians and 32 health centers in 6 Spanish provinces. Results The cumulative 12-month incidence of anxiety syndromes was 12.2%. The predictA-Spain risk algorithm included the following predictors of anxiety syndromes: province; sex (female); younger age; taking medicines for anxiety, depression or stress; worse physical and mental quality of life (SF-12); dissatisfaction with paid and unpaid work; perception of financial strain; and the interactions sex*age, sex*perception of financial strain, and age*dissatisfaction with paid work. The C-index was 0.80 (95% confidence interval = 0.78–0.83) and the Hedges' g = 1.17 (95% confidence interval = 1.04–1.29). The Copas shrinkage factor was 0.98 and calibration plots showed an accurate goodness of fit. Conclusions The predictA-Spain risk algorithm is valid to predict anxiety syndromes at 12 months. Although external validation is required, the predictA-Spain is available for use as a predictive tool in the prevention of anxiety syndromes in primary care. PMID:25184313

  9. Hyponatremia at discharge as a predictor of 12-month clinical outcomes in hospital survivors after acute myocardial infarction.

    PubMed

    Bae, Myung Hwan; Kim, Jae Hee; Jang, Se Yong; Park, Sun Hee; Lee, Jang Hoon; Yang, Dong Heon; Park, Hun Sik; Cho, Yongkeun; Chae, Shung Chull

    2017-02-01

    Hyponatremia in the early phase of acute myocardial infarction (AMI) is a well-known predictor of poor prognosis. However, little is known about the clinical implication of sodium levels at discharge in hospital survivors after AMI. The study included 1290 consecutive patients (64 ± 12 years; 877 men) who survived the index hospitalization after AMI. We determined the 12-month mortality rates of these patients. Patients who died during the 12-month follow-up had lower sodium levels at discharge than those who had survived (137 ± 6 vs. 139 ± 4 mmol/L; P < 0.014). Hyponatremia at discharge, defined as a serum sodium level ≤135 mmol/L, was present in 210 patients (16.3 %). In the Cox-proportional hazard model, hyponatremia at discharge (hazard ratio, 2.264; 95 % confidence interval, 1.119-4.579; P = 0.023) was an independent predictor of 12-month mortality. Moreover, hyponatremia at discharge had an incremental prognostic value over conventional risk factors (χ (2) = 7, P = 0.007), and conventional risk factors and log N-terminal Pro-B-type natriuretic peptide combined (χ (2) = 5, P = 0.021). In the subgroup analysis, the 12-month mortality of patients with hyponatremia at discharge was significantly higher than in those without, irrespective of age, Killip class, left ventricular ejection fraction, percutaneous coronary intervention at index hospitalization, and prescription of diuretics at discharge. Hyponatremia at discharge is an independent predictor of 12-month mortality in hospital survivors after AMI.

  10. High Incidence of Vertebral Fractures in Children with Acute Lymphoblastic Leukemia 12 Months After the Initiation of Therapy

    PubMed Central

    Alos, Nathalie; Grant, Ronald; Ramsay, Timothy; Halton, Jacqueline; Cummings, Elizabeth A.; Miettunen, Paivi M.; Abish, Sharon; Atkinson, Stephanie; Barr, Ronald; Cabral, David A.; Cairney, Elizabeth; Couch, Robert; Dix, David B.; Fernandez, Conrad V.; Hay, John; Israels, Sara; Laverdière, Caroline; Lentle, Brian; Lewis, Victor; Matzinger, MaryAnn; Rodd, Celia; Shenouda, Nazih; Stein, Robert; Stephure, David; Taback, Shayne; Wilson, Beverly; Williams, Kathryn; Rauch, Frank; Siminoski, Kerry; Ward, Leanne M.

    2014-01-01

    Purpose Vertebral fractures due to osteoporosis are a potential complication of childhood acute lymphoblastic leukemia (ALL). To date, the incidence of vertebral fractures during ALL treatment has not been reported. Patient and Methods We prospectively evaluated 155 children with ALL during the first 12 months of leukemia therapy. Lateral thoracolumbar spine radiographs were obtained at baseline and 12 months. Vertebral bodies were assessed for incident vertebral fractures using the Genant semi-quantitative method, and relevant clinical indices such as spine bone mineral density (BMD), back pain and the presence of vertebral fractures at baseline were analyzed for association with incident vertebral fractures. Results Of the 155 children, 25 (16%, 95% Confidence Interval (CI) 11% to 23%) had a total of 61 incident vertebral fractures, of which 32 (52%) were moderate or severe. Thirteen of the 25 children with incident vertebral fractures (52%) also had fractures at baseline. Vertebral fractures at baseline increased the odds of an incident fracture at 12 months by an odds ratio of 7.3 (95% CI 2.3 to 23.1, p = 0.001). In addition, for every one standard deviation reduction in spine BMD Z-score at baseline, there was 1.8-fold increased odds of incident vertebral fracture at 12 months (95% CI 1.2 to 2.7, p = 0.006). Conclusion Children with ALL have a high incidence of vertebral fractures after 12 months of chemotherapy, and the presence of vertebral fractures and reductions in spine BMD Z-scores at baseline are highly associated clinical features. PMID:22734031

  11. What barriers thwart postpartum women's physical activity goals during a 12-month intervention? A process evaluation of the Nā Mikimiki Project.

    PubMed

    Albright, Cheryl L; Saiki, Kara; Steffen, Alana D; Woekel, Erica

    2015-01-01

    Approximately 70% of new mothers do not meet national guidelines for moderate-to-vigorous physical activity (MVPA). The Nā Mikimiki ("the active ones") Project (2008-2011) was designed to increase MVPA among women with infants 2-12 months old. Participants' barriers to exercising and achievement of specific MVPA goals were discussed during telephone counseling calls over 12 months. Healthy, inactive women (n = 115, mean age = 31 ± 5 years, infants' mean age = 5.5 ± 3 months; 80% racial/ethnic minorities) received a total of 17 calls over 12 months in three phases. During Phase 1 weekly calls were made for a month, in Phase 2 biweekly calls were made for 2 months, and in Phase 3 monthly calls were made for 9 months. Across all phases, the most frequent barriers to achieving MVPA goals were: time/too busy (25%), sick child (11%), and illness (10%). Goals for MVPA minutes per week were achieved or surpassed 40.6% of the time during weekly calls, 39.9% during biweekly calls, and 42.0% during monthly calls. The least likely MVPA goals to be achieved (p < 0.04) were those which the woman encountered and for which she failed to overcome the barriers she had previously anticipated would impair her improvement of MVPA. This process evaluation demonstrated that telephone counseling somewhat facilitated the resolution of barriers and achievement of MVPA goals; thus, if clinical settings adopted such methods, chronic disease risks could be reduced in this vulnerable population of new mothers.

  12. 77 FR 60509 - Endangered and Threatened Wildlife and Plants; 12-Month Finding for the Lemmon Fleabane...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-03

    ... coordinates or plot points or both from which the critical habitat maps are generated are included in the...) permanent monitoring plots were established in 1977, with the aim of investigating growth, mortality, and recruitment of this species. Between 1977 and 1981, there was 31 percent mortality in the plots (Phillips...

  13. The effects of different levels of calcium supplementation on the bone mineral status of postpartum lactating Chinese women: a 12-month randomised, double-blinded, controlled trial.

    PubMed

    Zhang, Zhe-Qing; Chen, Yu-Ming; Wang, Ruo-Qin; Huang, Zhen-Wu; Yang, Xiao-Guang; Su, Yi-Xiang

    2016-01-14

    Increasing dietary Ca intake may prevent the excessive mobilisation of bone mineral in nursing mothers. We aimed to investigate whether higher Ca intake could positively modulate the bone mineral changes in Chinese postpartum lactating women. The study was a 12-month randomised, double-blinded, parallel group trial conducted over 12 months. A total of 150 postpartum women were randomly selected to receive either 40 g of milk powder containing 300 mg of Ca and 5 μg of vitamin D (Low-Ca group) or same milk powder additionally fortified with 300 mg of Ca (Mid-Ca group) or 600 mg of Ca (High-Ca group). Bone mineral density (BMD) for the whole body, the lumbar spine, the total left hip and its sub-regions was measured using dual-energy X-ray absorptiometry. A total of 102 subjects completed the whole trial. The duration of total lactating time was 7·9 (SD 2·8) months on average. The intention-to-treat analysis yielded the following mean percentage changes in BMD for the whole body, the lumbar spine and the total left hip, respectively: -0·93 (SD 1·97), 2·11 (SD 4·90) and -1·60 (SD 2·65)% for the Low-Ca group; -0·56 (SD 1·89), 2·21 (SD 3·77) and -1·43 (SD 2·30)% for the Mid-Ca group; and -0·44 (SD 1·67), 2·32 (SD 4·66) and -0·95 (SD 4·08)% for the High-Ca group. The differences between the groups were not statistically significant (P: 0·5-0·9). The results of the complete case analysis were similar. In sum, we found no significant differences in the bone mineral changes from baseline to 12 months in postpartum lactating women consuming milk powder fortified with different levels of Ca.

  14. Outcomes of ≤6-month versus 12-month dual antiplatelet therapy after drug-eluting stent implantation

    PubMed Central

    Villablanca, Pedro A.; Massera, Daniele; Mathew, Verghese; Bangalore, Sripal; Christia, Panagiota; Perez, Irving; Wan, Ningxin; Schulz-Schüpke, Stefanie; Briceno, David F.; Bortnick, Anna E.; Garcia, Mario J.; Lucariello, Richard; Menegus, Mark; Pyo, Robert; Wiley, Jose; Ramakrishna, Harish

    2016-01-01

    Abstract Background: The benefit of ≤6-month compared with 12-month dual antiplatelet therapy (DAPT) after percutaneous coronary intervention (PCI) with drug-eluting stent (DES) placement remains controversial. We performed a meta-analysis and meta-regression of ≤6-month versus 12-month DAPT in patients undergoing PCI with DES placement. Methods: We conducted electronic database searches of randomized controlled trials (RCTs) comparing DAPT durations after DES placement. For studies with longer follow-up, outcomes at 12 months were identified. Odds ratios and 95% confidence intervals were computed with the Mantel–Haenszel method. Fixed-effect models were used; if heterogeneity (I2) > 40 was identified, effects were obtained with random models. Results: Nine RCTs were included with total n = 19,224 patients. No significant differences were observed between ≤6-month compared with 12-month DAPT in all-cause mortality (OR 0.87; 95% confidence interval (CI): 0.69–1.11), cardiovascular (CV) mortality (OR 0.89; 95% CI: 0.66–1.21), non-CV mortality (OR 0.85; 95% 0.58–1.24), myocardial infarction (OR 1.10; 95% CI: 0.89–1.37), stroke (OR 0.97; 95% CI: 0.67–1.42), stent thrombosis (ST) (OR 1.37; 95% CI: 0.89–2.10), and target vessel revascularization (OR 0.95; 95% CI: 0.77–1.18). No significant difference in major bleeding (OR 0.72; 95% CI: 0.49–1.05) was observed, though the all-bleeding event rate was significantly lower in the ≤6-month DAPT group (OR 0.76; 95% CI: 0.59–0.96). In the meta-regression analysis, a significant association between bleeding events and non-CV mortality with 12-month DAPT was found, as well as between ST and mortality in addition to MI with ≤6-month DAPT. Conclusion: DAPT for ≤6 months is associated with similar mortality and ischemic outcomes but less bleeding events compared with 12-month DAPT after PCI with DES. PMID:28033306

  15. Improved Magnetic STAR Methods for Real-Time, Point-by-Point Localization of Unexploded Ordnance and Buried Mines

    DTIC Science & Technology

    2008-09-01

    portable STAR Gradiometer was designed and constructed at NSWC PCD to provide a completely portable and user-friendly technology for real-time DLC...r-values between the target and the respective CT-measurement points. Thus, if CT is measured at multiple points within a STAR gradiometer array...geometrical design of the gradiometer . b) The triangulation baselines, their respective end-point CT values and (3) can be used in a STAR Algorithm

  16. Cluster-randomized, controlled 12-month trial to evaluate the effect of a parental psychoeducation program on medication persistence in children with attention-deficit/hyperactivity disorder

    PubMed Central

    Montoya, Alonso; Hervás, Amaia; Fuentes, Joaquín; Cardo, Esther; Polavieja, Pepa; Quintero, Javier; Tannock, Rosemary

    2014-01-01

    Background This multicenter, cluster-randomized, nonblinded study evaluated the effect of parental psychoeducation on medication persistence among children and adolescents with newly diagnosed attention-deficit/hyperactivity disorder (ADHD). Methods Patients received standard medication alone or medication plus a parental psychoeducation program, and were followed for 12 months. The primary endpoint was time to withdrawal or termination of medication due to any cause. Secondary endpoints included change in ADHD symptom severity, functional outcome, program satisfaction, and safety. Results A total of 208 patients completed the study, which was terminated early because recruitment had ceased. At 12 months, there was no significant difference between the psychoeducation and control groups in the proportion of patients who discontinued pharmacologic treatment (13.2% versus 14.3%, respectively; size effect −0.3, P=0.34; hazard ratio 0.72, 95% confidence interval 0.36–1.43). Psychoeducation was associated with a significantly greater improvement in ADHD symptoms but not in functional outcome. Parental satisfaction with psychoeducation was high, and satisfaction with pharmacologic treatment was significantly greater in the psychoeducation group. There were no safety concerns. Conclusion No significant advantage for parental psychoeducation plus medication over medication alone in terms of time to medication withdrawal was observed. Psychoeducation had inconsistent but interesting effects on other outcomes. PMID:24966679

  17. Screening for Autism Spectrum Disorders in 12-Month-Old High-Risk Siblings by Parental Report

    PubMed Central

    Macari, Suzanne; Chen, Grace; Campbell, Daniel; Leventhal, John M.; Weitzman, Carol; Chawarska, Katarzyna

    2014-01-01

    This study examines whether parental report of social-communicative and repetitive behaviors at 12 months can be helpful in identifying autism spectrum disorder (ASD) in younger siblings of children with ASD [high-risk (HR)-siblings]. Parents of HR-siblings and infants without a family history of ASD completed the First Year Inventory at 12 months. Developmental outcomes were based on 24- or 36-month assessments. HR-siblings later diagnosed with ASD showed greater impairments in social communication than those with other developmental outcomes based on parental and clinician ratings. Parental report of decline in play and communication and impaired vocal imitation correctly classified a majority of ASD cases with high specificity. These preliminary findings have important implications for the development of early screening instruments for ASD in HR-siblings. PMID:25149178

  18. Efficacy and safety of dienogest in patients with endometriosis: A single-center observational study over 12 months

    PubMed Central

    Park, So Yun; Chae, Hee Dong; Kim, Chung-Hoon; Kang, Byung Moon

    2016-01-01

    Objective To evaluate the efficacy and safety of dienogest treatment in patients who had received dienogest for 12 months or more to treat endometriosis. Methods We analyzed the clinical data of 188 women with endometriosis who had been treated with 2 mg of dienogest once a day for 12 months or more at a single institute. We evaluated changes in endometriosis-associated pain and endometrioma size, recurrence rate, and adverse events following dienogest administration. Bone mineral density (BMD) was measured in patients who were prescribed dienogest for more than 18 months. Results Pain was significantly reduced at 12 months after dienogest medication. In those treated with dienogest due to recurrent endometrioma, the size of the endometrioma was significantly decreased at the 12-month and 18-month follow-ups. We found only one case of sonographic recurrence during dienogest administration among those who were treated postoperatively to prevent recurrence (1 of 114, 0.9%). The most common adverse drug reaction was uterine bleeding (3.2%), and other adverse events were generally tolerable and associated with low discontinuation rates (5.2%). Among the 50 patients in whom BMD was measured, 10 patients (20%) had a Z-score below the expected range for age. Conclusion The administration of dienogest for a year or more seems to be highly effective in preventing recurrence after surgery, reducing endometriosis-associated pain, and decreasing the size of recurrent endometrioma, with a favorable safety and tolerability profile. However, BMD should be checked in patients on long-term medication due to possible bone loss in some women. PMID:28090460

  19. Improving Physical Health in Patients with Chronic Mental Disorders: 12-Month Results from a Randomized Controlled Collaborative Care Trial

    PubMed Central

    Kilbourne, Amy M.; Barbaresso, Michelle M.; Lai, Zongshan; Nord, Kristina M.; Bramlet, Margretta; Goodrich, David E.; Post, Edward P.; Almirall, Daniel; Bauer, Mark S.

    2015-01-01

    Objective Persons with chronic mental disorders are disproportionately burdened with physical health conditions. We determined whether Life Goals Collaborative Care compared to usual care improves physical health in patients with mental disorders within 12 months. Method This single-blind randomized controlled effectiveness study of a collaborative care model was conducted at a mid-western Veterans Affairs urban outpatient mental health clinic. Patients (N=293 out of 474 eligible approached) with an ICD-9-CM diagnosis of schizophrenia, bipolar disorder, or major depressive disorder and at least one cardiovascular disease risk factor were consented and randomized (02/24/10 to 04/29/15) to Life Goals (N=146) or usual care (N=147). A total of 287 completed baseline assessments and 245 completed 12-month follow-up assessments. Life Goals included five weekly sessions that provided semi-structured guidance on managing physical and mental health symptoms through healthy behavior changes, augmented by ongoing care coordination. The primary outcome was change in physical health-related quality of life score (VR-12 physical health component score). Secondary outcomes included control of cardiovascular risk factors from baseline to 12 months (blood pressure, lipids, weight), mental health-related quality of life, and mental health symptoms. Results Among patients completing baseline and 12-month outcomes assessments (N=245), the mean age was 55.3 (SD=10.8; range 28-75 years) and 15.4% were female. Intent-to-treat analysis revealed that compared to those in usual care, patients randomized to Life Goals had slightly increased VR-12 physical health scores (coefficient=3.21;p=0.01). Conclusion Patients with chronic mental disorders and cardiovascular disease risk who received Life Goals had improved physical health-related quality of life. PMID:27780336

  20. 77 FR 19755 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition to List the San...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-02

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the San Francisco Bay-Delta distinct population segment (Bay Delta DPS) of longfin smelt as endangered or threatened and to designate critical habitat under the Endangered Species Act of 1973, as amended (Act). After review of the best available scientific and commercial information, we find......

  1. 76 FR 55169 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on Five Petitions To List Seven...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-06

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on five petitions to list seven species of Hawaiian yellow-faced bees (Hylaeus anthracinus, H. assimulans, H. facilis, H. hilaris, H. kuakea, H. longiceps, and H. mana) as endangered and to designate critical habitat under the Endangered Species Act of 1973, as amended (Act). After review of all available scientific......

  2. 76 FR 45129 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the Gopher...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-27

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the gopher tortoise (Gopherus polyphemus) in the eastern portion of its range (east of the Mobile and Tombigbee Rivers) as threatened and to designate critical habitat under the Endangered Species Act of 1973, as amended. In this finding, we also evaluate whether the status of the gopher......

  3. 75 FR 17352 - Endangered and Threatened Wildlife and Plants; 12-month Finding on a Petition To List the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-06

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the mountain whitefish (Prosopium williamsoni) in the Big Lost River, Idaho, as endangered or threatened under the Endangered Species Act of 1973, as amended. After review of all available scientific and commercial information, we find that the mountain whitefish in the Big Lost River does not......

  4. Incident Vertebral Fractures among Children with Rheumatic Disorders 12 Months Post-Glucocorticoid Initiation: a National Observational Study

    PubMed Central

    Rodd, Celia; Lang, Bianca; Ramsay, Timothy; Alos, Nathalie; Huber, Adam M.; Cabral, David A.; Scuccimarri, Rosie; Miettunen, Paivi M.; Roth, Johannes; Atkinson, Stephanie A.; Couch, Robert; Cummings, Elizabeth A.; Dent, Peter B.; Ellsworth, Janet; Hay, John; Houghton, Kristin; Jurencak, Roman; Larché, Maggie; LeBlanc, Claire; Oen, Kiem; Saint-Cyr, Claire; Stein, Robert; Stephure, David; Taback, Shayne; Lentle, Brian; Matzinger, MaryAnn; Shenouda, Nazih; Moher, David; Rauch, Frank; Siminoski, Kerry; Ward, Leanne M.

    2014-01-01

    Objectives To determine the frequency of incident vertebral fractures (IVF) 12 months after glucocorticoid (GC) initiation in children with rheumatic diseases and to identify children at higher risk. Methods Children with rheumatic diseases initiating GC were enrolled in a prospective observational study. Annual spine radiographs were evaluated using the Genant semi-quantitative method. Spine areal bone mineral density (aBMD) was measured every 6 months. Clinical features, including cumulative GC dose, back pain, disease and physical activity, calcium and vitamin D intake, and spine aBMD Z-scores were analyzed for association with IVF. Results Seven (6%) of 118 children (95% Confidence Interval 2.9 to 11.7) had IVF. Their diagnoses were: juvenile dermatomyositis (n = 2), systemic lupus erythematosus (n = 3), systemic vasculitis (n = 1) and mixed connective tissue disease (n = 1). One child was omitted from the analyses after 4 months because of osteoporosis treatment for symptomatic IVF. Children with IVF received on average 50% more GC than those without (p=0.030), had a greater increase in body mass index (BMI) at 6 months (p=0.010), and had greater decrements in spine aBMD Z-scores in the first 6 months (p=0.048). Four (67%) of 6 children with IVF and data to 12 months had spine aBMD Z-scores less than −2.0 at 12 months compared to 16% of children without IVF (p=0.011). Conclusions The incidence of VF 12 months following GC initiation was 6%; most children were asymptomatic. Children with IVF received more GC, had greater increases in BMI and greater declines in spine aBMD Z-scores in the first 6 months. PMID:22213727

  5. Clinical evaluation of fiber-reinforced composite crowns in pulp-treated primary molars: 12-month results

    PubMed Central

    Mohammadzadeh, Zahra; Parisay, Iman; Mehrabkhani, Maryam; Madani, Azam Sadat; Mazhari, Fatemeh

    2016-01-01

    Objective: The aim of this study was to evaluate the clinical performance of tooth-colored fiber-reinforced composite (FRC) crowns in pulp-treated second primary mandibular teeth. Materials and Methods: This split-mouth randomized, clinical trial performed on 67 children between 3 and 6 years with two primary mandibular second molars requiring pulp treatment. After pulp therapy, the teeth were randomly assigned to stainless steel crown (SSC) or FRC crown groups. Modified United States Public Health Service criteria were used to evaluate marginal integrity, marginal discoloration, and secondary caries in FRC crowns at intervals of 3, 6, and 12 months. Retention rate and gingival health were also compared between the two groups. The data were analyzed using Friedman, Cochran, and McNemar's tests at a significance level of 0.05. Results: Intact marginal integrity in FRC crowns at 3, 6, and 12 months were 93.2%, 94.8%, and 94.2%, respectively. Marginal discoloration and secondary caries were not found at any of the FRC crowns. The retention rates of the FRC crowns were 100%, 98.3%, and 89.7% at 3, 6 and 12 months, respectively, whereas all the SSCs were found to be present and intact after 12 months (P = 0.016). There was no statistically significant difference between the two groups in gingival health. Conclusion: According to the results of this study, it seems that when esthetics is a concern, in cooperative patients with good oral hygiene, FRC crowns can be considered as a valuable procedure. PMID:28042269

  6. 77 FR 29077 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To Downlist Three...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-16

    ...We, the U.S. Fish and Wildlife Service, announce our 12-month findings on a petition to reclassify San Clemente Island lotus, and San Clemente Island paintbrush under the Endangered Species Act are warranted and we propose to change the status of these two species from endangered to threatened. We also propose to correct the scientific and common names of San Clement Island lotus. We are also......

  7. 76 FR 63479 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List Two South...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-12

    ...We, the U.S. Fish and Wildlife Service, announce a status review (12-month finding) on a petition to list the blue-headed macaw (Primolius couloni) and grey-cheeked parakeet (Brotogeris pyrrhoptera) as threatened or endangered under the Endangered Species Act of 1973, as amended (Act). After review of all available scientific and commercial information, we find that listing the blue-headed......

  8. 75 FR 6437 - Endangered and Threatened Wildlife and Plants; 12-month Finding on a Petition to List the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-09

    ...We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the American pika (Ochotona princeps) as threatened or endangered under the Endangered Species Act of 1973, as amended. After review of all available scientific and commercial information, we find that listing the American pika, at the species level or any of the five recognized subspecies (O.......

  9. Reinforcement-based therapy: 12-month evaluation of an outpatient drug-free treatment for heroin abusers.

    PubMed

    Jones, Hendree E; Wong, Conrad J; Tuten, Michelle; Stitzer, Maxine L

    2005-08-01

    This controlled study examined the efficacy of reinforcement-based therapy (RBT) for producing enhanced abstinence outcomes over 12 months in opioid-dependent patients exiting a brief residential detoxification. Patients were randomly assigned upon completing their medically managed taper (i.e., detoxification) to RBT (N=66) or usual care (N=64) referral to community treatment programs. The 6-month RBT program offered an array of abstinence-based incentives including rent payment for recovery housing, program-led recreational activities and skills training for procuring employment. RBT produced significantly higher self-report and urinalysis-confirmed rates of abstinence from opioids and cocaine relative to usual care at 1 (42% versus 15%) and 3 (38% versus 17%) months during treatment but not at 6 or 12 months after enrollment. The RBT but not the usual care group showed significant increases in the number of days worked and the amount of legal income earned at 3, 6 and 12 months. The results of this randomized study suggest that an intensive reinforcement-based therapy that includes abstinence-based recovery housing is a promising approach; however, further research is needed to determine the role of treatment intensity and the specific efficacy of RBT's component parts.

  10. Social cognition in schizophrenia, Part 2: 12-month stability and prediction of functional outcome in first-episode patients.

    PubMed

    Horan, William P; Green, Michael F; DeGroot, Michael; Fiske, Alan; Hellemann, Gerhard; Kee, Kimmy; Kern, Robert S; Lee, Junghee; Sergi, Mark J; Subotnik, Kenneth L; Sugar, Catherine A; Ventura, Joseph; Nuechterlein, Keith H

    2012-06-01

    This study evaluated the longitudinal stability and functional correlates of social cognition during the early course of schizophrenia. Fifty-five first-episode schizophrenia patients completed baseline and 12-month follow-up assessments of 3 key domains of social cognition (emotional processing, theory of mind, and social/relationship perception), as well as clinical ratings of real-world functioning and symptoms. Scores on all 3 social cognitive tests demonstrated good longitudinal stability with test-retest correlations exceeding .70. Higher baseline and 12-month social cognition scores were both robustly associated with significantly better work functioning, independent living, and social functioning at the 12-month follow-up assessment. Furthermore, cross-lagged panel analyses were consistent with a causal model in which baseline social cognition drove later functional outcome in the domain of work, above and beyond the contribution of symptoms. Social cognitive impairments are relatively stable, functionally relevant features of early schizophrenia. These results extend findings from a companion study, which showed stable impairments across patients in prodromal, first-episode, and chronic phases of illness on the same measures. Social cognitive impairments may serve as useful vulnerability indicators and early clinical intervention targets.

  11. Identification of infants at risk for autism spectrum disorder and developmental language delay prior to 12 months.

    PubMed

    Samango-Sprouse, Carole A; Stapleton, Emily J; Aliabadi, Farhad; Graw, Robert; Vickers, Rebecca; Haskell, Kathryn; Sadeghin, Teresa; Jameson, Robert; Parmele, Charles L; Gropman, Andrea L

    2015-04-01

    Studies have shown an increased head circumference and the absence of the head tilt reflex as possible risk factors for autism spectrum disorder, allowing for early detection at 12 months in typically developing population of infants. Our aim was to develop a screening tool to identify infants prior to 12 months at risk for autism spectrum disorder and developmental learning delay, not affected by literacy or primary parental language, and provide immediate determination of risk for autism spectrum disorder. An abrupt head circumference acceleration and the absence of head tilt reflex by 9 months were used to identify infants at risk for autism spectrum disorder. Stability of early findings was then investigated when compared to comprehensive standardized neurodevelopmental assessment results and complete neurological and genetics evaluations. A total of 1024 typically developing infants were enrolled by 9 months, with 14 identified as at risk for autism spectrum disorder and 33 for developmental learning delay. There was a good positive predictive value for the identification of autism spectrum disorder prior to 12 months. This study demonstrates an efficient means to identify infants at risk for autism spectrum disorder by 9 months of age and serves to alert primary care providers of infants who are vulnerable for autism spectrum disorder before symptoms are discernible by clinical judgment of primary care providers, parental concerns, or by screening questionnaires.

  12. A comparison of the carcass and meat quality of Martina Franca donkey foals aged 8 or 12 months.

    PubMed

    Polidori, Paolo; Pucciarelli, Stefania; Ariani, Ambra; Polzonetti, Valeria; Vincenzetti, Silvia

    2015-08-01

    The effects of slaughter age (8 vs 12 months) were investigated on meat and carcass quality obtained from Martina Franca donkey foals. Sixteen male foals were used, eight were slaughtered at 8 months of age with a mean (±s.e.) final body weight of 101±18kg and the remaining 8 foals slaughtered at 12 months of age with a mean final body weight of 122±13kg. Carcass weight and dressing percentage were higher (P<0.05) in older foals. Shear force value was lower (P<0.05) in donkeys slaughtered at 8 months of age (54.03N) compared to the same muscle Longissimus Thoracis et Lumborum (LTL) collected in older animals (62.66N). Muscle glycogen content was higher (P<0.05) in foals slaughtered at 12months of age. Donkey foal meat showed an interesting content of essential amino acids and a notable percentage of unsaturated fatty acids in both groups of animals, giving a high nutritional value to this alternative red meat.

  13. Effects of 12 Months Continuous Positive Airway Pressure on Sympathetic Activity Related Brainstem Function and Structure in Obstructive Sleep Apnea

    PubMed Central

    Henderson, Luke A.; Fatouleh, Rania H.; Lundblad, Linda C.; McKenzie, David K.; Macefield, Vaughan G.

    2016-01-01

    Muscle sympathetic nerve activity (MSNA) is greatly elevated in patients with obstructive sleep apnea (OSA) during normoxic daytime wakefulness. Increased MSNA is a precursor to hypertension and elevated cardiovascular morbidity and mortality. However, the mechanisms underlying the high MSNA in OSA are not well understood. In this study we used concurrent microneurography and magnetic resonance imaging to explore MSNA-related brainstem activity changes and anatomical changes in 15 control and 15 OSA subjects before and after 6 and 12 months of continuous positive airway pressure (CPAP) treatment. We found that following 6 and 12 months of CPAP treatment, resting MSNA levels were significantly reduced in individuals with OSA. Furthermore, this MSNA reduction was associated with restoration of MSNA-related brainstem activity and structural changes in the medullary raphe, rostral ventrolateral medulla, dorsolateral pons, and ventral midbrain. This restoration occurred after 6 months of CPAP treatment and was maintained following 12 months CPAP. These findings show that continual CPAP treatment is an effective long-term treatment for elevated MSNA likely due to its effects on restoring brainstem structure and function. PMID:27013952

  14. Maternal prenatal felt security and infant health at birth interact to predict infant fussing and crying at 12 months postpartum.

    PubMed

    Sawada, Natsumi; Gagné, Faby M; Séguin, Louise; Kramer, Michael S; McNamara, Helen; Platt, Robert W; Goulet, Lise; Meaney, Michael J; Lydon, John E

    2015-08-01

    Infants born with medical problems are at risk for less optimal developmental outcomes. This may be, in part, because neonatal medical problems are associated with maternal distress, which may adversely impact infants. However, the reserve capacity model suggests that an individual's bank of psychosocial resources buffers the adverse effects of later-encountered stressors. This prospective longitudinal study examined whether preexisting maternal psychosocial resources, conceptualized as felt security in close relationships, moderate the association between neonatal medical problems and infant fussing and crying 12 months postpartum. Maternal felt security was measured by assessing its indicators in 5,092 pregnant women. At birth, infants were classified as healthy or having a medical problem. At 12 months, experience sampling was used to assess daily maternal reports of fussing and crying in 135 mothers of infants who were healthy or had medical problems at birth. Confirmatory factor analyses revealed that attachment, relationship quality, self-esteem, and social support can be conceptualized as indicators of a single felt security factor. Multiple regression analyses revealed that prenatal maternal felt security interacts with infant health at birth to predict fussing and crying at 12 months. Among infants born with medical problems, higher felt security predicted decreased fussing and crying. Maternal felt security assessed before birth dampens the association between neonatal medical problems and subsequent infant behavior. This supports the hypothesis that psychosocial resources in reserve can be called upon in the face of a stressor to reduce its adverse effects on the self or others.

  15. Miniscalpel-Needle versus Steroid Injection for Plantar Fasciitis: A Randomized Controlled Trial with a 12-Month Follow-Up

    PubMed Central

    Li, Shuming; Shen, Tong; Liang, Yongshan; Zhang, Ying; Bai, Bo

    2014-01-01

    Plantar fasciitis is the most common cause of heel pain in adults. A novel alternative medical instrument, the miniscalpel-needle (MSN), which is based on an acupuncture needle, has been recently developed in China. The objective of this study was to evaluate the effectiveness of the MSN release treatment versus that of traditional steroid injection for plantar fasciitis. Patients with plantar fasciitis were randomly assigned to 2 groups and followed up for 12 months, with 29 receiving MSN treatment and 25 receiving steroid injection treatment. The results showed that visual analog scale scores for morning pain, active pain, and overall heel pain all were decreased significantly in the MSN group from 1 to 12 months after treatment. In contrast, treatment with steroid injection showed a significant effect only at the 1-month follow-up but not at 6 or 12 months after treatment. Moreover, the MSN group achieved more rapid and sustained improvements than the steroid group throughout the duration of this study. No severe side effects were observed with MSN treatment. Our data suggest that the MSN release treatment is safe and has a significant benefit for plantar fasciitis compared to steroid injection. PMID:25114704

  16. Evaluation of the pressure-redistributing properties of prefabricated foot orthoses in older people after at least 12 months of wear.

    PubMed

    Cronkwright, Dean G; Spink, Martin J; Landorf, Karl B; Menz, Hylton B

    2011-10-01

    Foot problems are highly prevalent in older people. To treat such problems in this age-group prefabricated ('off-the-shelf') foot orthoses are frequently prescribed. However, such devices are susceptible to material compression and deformation, which may reduce their effectiveness over time. Therefore, the aim of this study was to compare the pressure-redistributing properties of new prefabricated orthoses to orthoses worn for at least 12 months. Thirty-one adults (10 males, 21 females) aged over 65 years (mean 75.4, SD 5.2) participated. Plantar pressure data were collected under the rearfoot, midfoot and forefoot using the Pedar(®) in-shoe system while participants walked along an 8m walkway wearing shoes only, new orthoses and old orthoses (orthoses were full length, dual-density prefabricated Formthotic™ devices). Compared to the shoe-only condition, both the new and old orthoses produced significant reductions in peak pressure and maximum force in the rearfoot with corresponding increases in force and contact area in the midfoot. Compared to the new orthoses, the old orthoses exhibited small but significant increases in peak pressure in the rearfoot (6%, p=0.001) and maximum force in the rearfoot (5%, p<0.001) and forefoot (2%, p=0.032). These findings indicate that the prefabricated orthoses evaluated in this study are only slightly less effective at redistributing plantar pressure after at least 12 months of wear.

  17. Longitudinal study of pesticide residue levels in human milk from Western Australia during 12 months of lactation: Exposure assessment for infants

    NASA Astrophysics Data System (ADS)

    Du, Jian; Gridneva, Zoya; Gay, Melvin C. L.; Lai, Ching T.; Trengove, Robert D.; Hartmann, Peter E.; Geddes, Donna T.

    2016-12-01

    The presence of pesticides in human milk (HM) is of great concern due to the potential health effects for the breastfed infant. To determine the relationships between HM pesticides and infant growth and development, a longitudinal study was conducted. HM samples (n = 99) from 16 mothers were collected at 2, 5, 9 and 12 months of lactation. A validated QuEChERS method and Gas chromatography-tandem mass spectrometry (GC-MS/MS) were used for the analysis of 88 pesticides in HM. Only p,p’-DDE, p,p’-DDT and β-HCH were detected with a mean concentration (±SD) of 52.25 ± 49.88 ng/g fat, 27.67 ± 20.96 ng/g fat and 48.00 ± 22.46 ng/g fat respectively. The concentrations of the detected pesticides decreased significantly throughout the first year of lactation. No significant relationships between HM p,p’-DDE and infant growth outcomes: weight, length, head circumference and percentage fat mass were detected. The actual daily intake (ADI) of total DDTs in this cohort was 14–1000 times lower than the threshold reference and significantly lower than the estimated daily intake (EDI). Further, the ADI decreased significantly throughout the first 12 months of lactation.

  18. Longitudinal study of pesticide residue levels in human milk from Western Australia during 12 months of lactation: Exposure assessment for infants

    PubMed Central

    Du, Jian; Gridneva, Zoya; Gay, Melvin C. L.; Lai, Ching T.; Trengove, Robert D.; Hartmann, Peter E.; Geddes, Donna T.

    2016-01-01

    The presence of pesticides in human milk (HM) is of great concern due to the potential health effects for the breastfed infant. To determine the relationships between HM pesticides and infant growth and development, a longitudinal study was conducted. HM samples (n = 99) from 16 mothers were collected at 2, 5, 9 and 12 months of lactation. A validated QuEChERS method and Gas chromatography-tandem mass spectrometry (GC-MS/MS) were used for the analysis of 88 pesticides in HM. Only p,p’-DDE, p,p’-DDT and β-HCH were detected with a mean concentration (±SD) of 52.25 ± 49.88 ng/g fat, 27.67 ± 20.96 ng/g fat and 48.00 ± 22.46 ng/g fat respectively. The concentrations of the detected pesticides decreased significantly throughout the first year of lactation. No significant relationships between HM p,p’-DDE and infant growth outcomes: weight, length, head circumference and percentage fat mass were detected. The actual daily intake (ADI) of total DDTs in this cohort was 14–1000 times lower than the threshold reference and significantly lower than the estimated daily intake (EDI). Further, the ADI decreased significantly throughout the first 12 months of lactation. PMID:27924835

  19. Asymmetrical motor behaviour as a window to early leg preference: a longitudinal study in infants 7-12 months of age.

    PubMed

    Atun-Einy, Osnat

    2016-01-01

    This longitudinal study explored leg preference in infancy during half-kneel pulling-to-stand (PTS) and asymmetrical four-point kneeling, which is part of the typical motor repertoire of infants. The special characteristics of the half-kneel PTS as a discrete task, performed in a bilateral context provide the opportunity to explore leg preference during an asymmetrical behaviour. Twenty-seven infants were observed in their homes, every 3 weeks between the ages of 7-12 months. Leg preference was determined by the "lead-out" limb used as the infants pulled to stand from the half-kneeling position (half-kneel PTS). As a complementary measure, the leading leg during asymmetrical four-point kneeling and crawling ("asymmetrical four-point patterns") was used in the 10 infants who developed these patterns. The infants studied showed a general preference for using a leading leg during half-kneel PTS, which was mostly consistent over the study period. A strong correlation was found between leg preferences during half-kneel PTS and asymmetrical four-point patterns. The findings documented functional asymmetry in infant lower limbs during half-kneel PTS and asymmetrical four-point patterns, highlighting the importance of the tasks used to define leg preference.

  20. A 12-Month Study of Food Crops Contaminated by Heavy Metals, Lusaka, Zambia

    NASA Astrophysics Data System (ADS)

    Holden, J. A.; Malamud, B. D.; Chishala, B. H.; Kapungwe, E.; Volk, J.; Harpp, K. S.

    2009-04-01

    We investigate heavy-metal contamination of irrigation water used for urban agriculture and subsequent contamination of food crops in Chunga, NW Lusaka, the capital of Zambia. Inhabitants of the Chunga area rely on urban agriculture as both a major source of income and food. From August 2004 to July 2005, monthly samples of irrigation water used and edible portions of food crops were taken from a farmer's plot at Chunga. The food crops (cabbage, Chinese cabbage, pumpkin leaves, rape, sweet potato leaves and tomatoes) are grown using irrigation throughout the year. Irrigation water samples and digested food crop samples were analysed using ICP-MS at the Department of Geology, Colgate University, USA for Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Cd, Ba, Hg, Tl, Pb, and U. We find heavy-metal concentrations present in both irrigation water and food crop samples. Zambian sample concentrations were compared to Zambian and international legislative and guideline limits for concentrations of heavy metals in industrial effluent, heavy metals in irrigation water and heavy metals in foods. In irrigation water samples recommended national and/or international legislative limits for Al, Cr, Mn, Fe, Cu, Hg, Pb and U were exceeded. Limits for Hg were exceeded by up to 130 times. There were heavy-metal concentrations above recommended limits in food crops for Cr, Fe, Ni, Cu, Zn, Cd, Hg and Pb throughout the different food crops grown and throughout the year. In all 14 samples recommended limits for Cr, Fe and Hg were exceeded. Zambian legislated limits for food crops were exceeded by up to 16 times for Pb and 58 times for Hg. The results of this study show that heavy metal contamination is present in irrigation water used and food crops grown in urban agriculture in Chunga, Lusaka, Zambia. Recommended maximum limits for heavy metals in irrigation water and food are exceeded in some samples indicating there may be a risk to health.

  1. Course of Depressive Symptoms Following a Workplace Injury: A 12-Month Follow-Up Update.

    PubMed

    Carnide, Nancy; Franche, Renée-Louise; Hogg-Johnson, Sheilah; Côté, Pierre; Breslin, F Curtis; Severin, Colette N; Bültmann, Ute; Krause, Niklas

    2016-06-01

    Introduction To estimate the prevalence, incidence and course of depressive symptoms, their relationship with return-to-work, and prevalence of depression diagnosis/treatment 12 months following a lost-time workplace musculoskeletal injury. Methods In a prospective cohort study, 332 workers' compensation claimants with a back or upper extremity musculoskeletal disorder completed interviews at 1, 6 and 12 months post-injury. Participants self-reported they had not received a depression diagnosis 1 year pre-injury. Cutoff of 16 on the CES-D defined a high level of depressive symptoms. Self-reported data on depression diagnosis and treatment and work status since injury were collected. Results Cumulative incidence of high depressive symptom levels over 12 months was 50.3 % (95 % CI 44.9-55.7 %). At 12 months, 24.7 % (95 % CI 20.1-29.3 %) of workers exhibited high levels. Over 12 months, 49.7 % (95 % CI 44.3-55.1 %) had low levels at all 3 interviews, 14.5 % (95 % CI 10.7-18.2 %) had persistently high levels, and 25.6 % (95 % CI 20.9-30.3 %) demonstrated improvements. Among workers with low baseline levels, incidence of high levels at 12 months was 6.0 % (95 % CI 2.7-9.3 %). For workers with high baseline levels, 36.1 % (95 % CI 27.9-44.3 %) exhibited persistent high symptoms at 6 and 12 months, while 38.4 % (95 % CI 30.1-46.6 %) experienced low levels at 6 and 12 months. Problematic RTW outcomes were common among workers with a poor depressive symptom course. Among workers with persistent high symptoms, 18.8 % (95 % CI 7.7-29.8 %) self-reported receiving a depression diagnosis by 12 months and 29.2 % (95 % CI 16.3-42.0 %) were receiving treatment at 12 months. Conclusions Depressive symptoms are common in the first year following a lost-time musculoskeletal injury and a poor depressive symptom course is associated with problematic RTW outcomes 12 months post-injury. While symptoms appear to improve over time, the first 6

  2. Cumulative time statistics of surface-point rainfall rates

    NASA Technical Reports Server (NTRS)

    Rice, P. L.; Holmberg, N. R.

    1973-01-01

    Statistics on rainfall rates near and above the earth's surface are needed in order to estimate the percentage of time of absorption, or scattering of radio waves that affect radio system design and electrospace management. The most useful averaging time for computing such rates is on the order of 1 min or less. This paper extrapolates excessive short-duration precipitation data to provide such statistics from data routinely reported by the National Weather Service. For the 8766 h in an average year, and for a median or random location in any part of the world, the model described here estimates the fraction of time during which t-minute average rainfall rates exceed any given value.

  3. TVT-Secur mini-sling for stress urinary incontinence: a review of outcomes at 12 months.

    PubMed

    Walsh, Colin A

    2011-09-01

    • Synthetic mid-urethral slings (MUSs) are considered the first choice surgical procedure for stress urinary incontinence. Recent publications have raised concerns about the efficacy of third generation single-incision mini-slings. The present paper is a systematic review of studies reporting 12-month outcomes after the TVT-Secur (TVT-S) procedure. • Pubmed/Medline online databases, abstracts from recent International Continence Society and International Urogynecological Association annual scientific meetings and the Clinicaltrials.gov and Controlled-trials.com online trial registries were searched for English-language articles containing the terms 'TVT-Secur', 'TVT Secur' or 'mini-sling'. The primary outcomes were objective and subjective cure rates at 12 months. Secondary outcomes included peri-operative (vaginal perforation, urinary retention, urinary tract infection [UTI]) and postoperative (mesh exposure, de novo overactive bladder (OAB), dyspareunia and return to theatre) complication rates. • Among 1178 women undergoing the TVT-S procedure, from 10 studies, both objective and subjective cure rate at 12 months was 76%, with objective cure significantly higher in women undergoing the 'U-type' approach. Vaginal perforation was a complication in 1.5% of cases, with a 2.4% incidence of mesh exposure in the first year. The incidence of de novo OAB symptoms was 10%. Rates of urinary retention (2.3%), UTI (4.4%), dyspareunia (1%) and return to theatre for complications (0.8%) were low. In the first year after a TVT-S procedure 5% of women required repeat continence surgery. • Longer-term studies and randomized comparisons with more established MUSs are required before TVT-S should be routinely used in the surgical treatment of stress urinary incontinence.

  4. Correlation of EEG, CT, and MRI Brain with Neurological Outcome at 12 Months in Term Newborns with Hypoxic Ischemic Encephalopathy

    PubMed Central

    Jose, Annu; Matthai, John; Paul, Sarah

    2013-01-01

    Objective: To correlate electroencephalogram (EEG), computed tomography (CT), and magnetic resonance imaging (MRI) brain with neurological outcome at 12 months in term neonates with hypoxic ischemic encephalopathy. Design: Prospective observational study. Setting: Neonatal intensive care unit (NICU) in a tertiary care teaching hospital. Materials and Methods: The study was conducted between June 2010 and November 2011. Consecutive term neonates with perinatal asphyxia and hypoxic ischemic encephalopathy were the subjects. All babies were managed as per standard protocol. EEG was done as soon as the baby was stable and CT brain within 7 days. MRI was done at 3 months. Neurodevelpmental assessment was done at 12 months. Results: Of the 31 babies, four died and one was lost to follow-up. Neurodevelopmental at 12 months of age was normal in 15 babies. EEG was normal in six babies and all of them had a normal neurodevelopment. Thirteen of the 14 babies with burst suppression pattern were abnormal (P<0.001). CT brain was normal in 14 and all of them had normal neurodevelopment (P<0.001), while 11 of the 12 with cerebral edema had abnormal outcome (P<0.001). Of the 16 babies with normal MRI, 14 were normal, while all six babies with abnormal signals in the cortex and thalamus had abnormal outcome (P=0.002). Conclusions: A normal EEG and CT brain in a term newborn with hypoxic ischemic encephalopathy (HIE) is associated with good neurological outcome. Burst suppression pattern in EEG, bleeds, or hypodensities in the CT and involvement of basal ganglia/thalamus in the MRI are predictors of abnormal outcome. PMID:24251256

  5. Risk factors associated with high thyroglobulin level following radioactive iodine ablation, measured 12 months after treatment for papillary thyroid carcinoma

    PubMed Central

    Kim, Eun Young; Hyun, Kee Hoon; Park, Yong Lai; Park, Chan Heun

    2017-01-01

    Purpose The measurement of serum thyroglobulin (Tg) of papillary thyroid carcinoma patients, 12 months after total thyroidectomy and radioactive iodine (RAI) ablation following thyroxine hormone withdrawal (T4-off Tg) or recombinant human thyroid-stimulating hormone stimulation (rhTSH-Tg), is standard method for monitoring disease status. The aim of this study was to find predictive factors for detectable T4-off Tg during follow-up. Methods A retrospective review was conducted of 329 patients who underwent total thyroidectomy and RAI ablation between October 2008 and August 2012. Subjects were assigned to high (>1 ng/mL, n = 53) and low (≤1 ng/mL, n = 276) groups, based on T4-off Tg measured 12 months postoperatively. Demographic and clinicopathological characteristics at diagnosis and follow-up were compared between the 2 groups. Results The low and high T4-off Tg groups differed with respect to tumor size, preoperative Tg, ablative Tg, cervical lymph node metastasis, thyroglobulinemia out of proportion to results of diagnostic whole body scan, and American Thyroid Association 3-level stratification and restratification. Multivariate analysis confirmed that ablative Tg > 1.0 ng/mL (odds ratio [OR], 10.801; P = 0.001), more than 5 cervical lymph node metastasis (OR, 6.491; P = 0.003), and thyroglobulinemia out of proportion (OR, 9.221; P = 0.000) were risk factors. Conclusion Ablative Tg >1.0 ng/mL, more than 5 cervical lymph node metastasis, and thyroglobulinemia out of proportion were independent factors for T4-off Tg >1 ng/mL 12 months postoperative. In low-risk patients without these risk factors, the possible omission of Tg measurements could be considered during follow-up. PMID:28090499

  6. Prevalence and Health Outcomes of Functional Gastrointestinal Symptoms in Infants From Birth to 12 Months of Age

    PubMed Central

    Vandenplas, Yvan; Abkari, Abdelhak; Bellaiche, Marc; Benninga, Marc; Chouraqui, Jean Pierre; ÇokuÐraþ, FügenÇullu; Harb, Tracy; Hegar, Badriul; Lifschitz, Carlos; Ludwig, Thomas; Miqdady, Mohamed; de Morais, Mauro Batista; Osatakul, Seksit; Salvatore, Silvia; Shamir, Raanan; Staiano, Annamaria; Szajewska, Hania; Thapar, Nikhil

    2015-01-01

    ABSTRACT Objectives: The aim of the study was to review published evidence and the opinion of practising clinicians on the prevalence and long-term health consequences of functional gastrointestinal symptoms in infants younger than 12 months. Methods: PubMed was searched from inception to November 2014 to find articles reporting the prevalence and long-term health outcomes of infantile colic, regurgitation, functional constipation, functional diarrhoea, and dyschezia in infants younger than <12 months. A questionnaire was sent to practising clinicians worldwide, and a group of 15 international experts met to discuss the likely frequency and longer-term consequences of these symptoms. Results: The literature search identified 30 studies reporting the prevalence of infantile colic (2%–73%), 13 that of regurgitation (3%–87%), 8 that of functional constipation (0.05%–39.3%), 2 that of functional diarrhoea (2%–4.1%), and 3 that of dyschezia (0.9%–5.6%). The studies varied in design, populations investigated, and definition of the symptoms. Questionnaires were received from 369 respondents. The experts agreed that the likely prevalences for colic, regurgitation, and functional constipation were 20%, 30%, and 15%, respectively. The limited data in the literature for functional diarrhoea and dyschezia suggest prevalences <10%. Infantile colic may be associated with future health problems in a subset of infants. Conclusions: Functional gastrointestinal symptoms appear to occur in a significant proportion of infants younger than 12 months and may have an impact on future health outcomes. Prospective collection of data according to agreed criteria is needed to obtain more accurate estimates of the prevalence and consequences of these symptoms. PMID:26308317

  7. The Influence of Back Pain and Urinary Incontinence on Daily Tasks of Mothers at 12 Months Postpartum

    PubMed Central

    McDonald, Sheila W.; Tough, Suzanne C.

    2015-01-01

    Objective The present study examined back pain (BP) and/or urinary incontinence (UI) impact on the ability to perform daily tasks at 12 months after childbirth in healthy reproductive women who sought maternity care in community based family practice clinics. Methods This study is a secondary analysis from the All Our Babies Study, a prospective, community-based pregnancy cohort in Calgary, Alberta. Maternal self-reported information on demographics, lifestyle, experiences with pregnancy and childbirth, occurrence of BP, UI and consequent impairment of daily tasks were collected by questionnaires administered before 25 weeks, at 34-36 weeks gestation and at 4 and 12 months postpartum. The occurrence and severity of BP and UI at one year after childbirth was assessed using descriptive and bivariate analyses. Logistic regression models examined the association between demographic and obstetrical variables and the severity of functional impairment due to UI and BP. Results From 1574 women with singleton pregnancies included in the study, 1212 (77%) experienced BP, 773 (49%) UI, and 620 (40%) both BP and UI. From the 821 women reporting impairment of daily tasks due to BP, 199 (24 %) were moderately and 90 (11%) severely affected with the remainder, 532 (64%) being mildly affected. From 267 women with functional impairment due to UI, 52 (19%) reported moderately to severe impairment in their ability to perform daily tasks. Obesity and parity were risk factors for impairment of daily functioning due to BP, whereas obesity and vaginal delivery increased the risk of moderate to severe impairment due to UI. Conclusions BP and UI are common occurrences 1 year after childbirth. Maternal performance of daily tasks and women’s health and quality of life are more often impaired due to BP than UI. Our study brings new evidence of the risk factors that predict severity and impact of these conditions on women functioning at 12 months postpartum. PMID:26083252

  8. Higher maternal serum concentrations of nicotinamide and related metabolites in late pregnancy are associated with a lower risk of offspring atopic eczema at age 12 months

    PubMed Central

    El-Heis, S; Crozier, SR; Robinson, SM; Harvey, NC; Cooper, C; Inskip, HM; Godfrey, KM

    2016-01-01

    Background Evidence that atopic eczema partly originates in utero is increasing, with some studies linking the risk of developing the condition with aspects of maternal diet during pregnancy. Nicotinamide, a naturally occurring nutrient that is maintained through the dietary intakes of vitamin B3 and tryptophan has been used in the treatment of some skin conditions including atopic eczema. Objective To examine the relation of maternal serum concentrations of nicotinamide and related tryptophan metabolites to the risk of atopic eczema in the offspring. Methods Within the UK Southampton Women Survey, infantile atopic eczema at ages 6 and 12 months was ascertained (modified UK Working Party Criteria for the Definition of Atopic Dermatitis). Maternal serum levels of kynurenine, kynurenic acid, anthranilic acid, tryptophan, nicotinamide and N1-methylnicotinamide were measured in late pregnancy by mass spectrometry, n=497 and related to the odds ratio of infantile atopic eczema. Results Maternal nicotinamide and related metabolite concentrations were not associated with offspring atopic eczema at age 6 months. Higher concentrations of nicotinamide and anthranilic acid were, however, associated with a lower risk of eczema at age 12 months (odds ratios 0.69, 95% CI 0.53-0.91 /SD change, p=0.007 and 0.63, 0.48-0.83, p=0.001, respectively). The associations were robust to adjustment for potentially confounding variables. Conclusion and clinical relevance This is the first study linking maternal serum concentrations of nicotinamide and related metabolites to the risk of atopic eczema in the offspring. The findings point to potentially modifiable maternal influences on this complex and highly prevalent condition. PMID:27517618

  9. Improving district facility readiness: a 12-month evaluation of a data-driven health systems strengthening intervention in rural Rwanda

    PubMed Central

    Iyer, Hari S.; Kamanzi, Emmanuel; Mugunga, Jean Claude; Finnegan, Karen; Uwingabiye, Alice; Shyaka, Edward; Niyonzima, Saleh; Hirschhorn, Lisa R.; Drobac, Peter C.

    2015-01-01

    Background While health systems strengthening (HSS) interventions are recommended by global health policy experts to improve population health in resource-limited settings, few examples exist of evaluations of HSS interventions conducted at the district level. In 2009, a partnership between Partners In Health (PIH), a non-governmental organization, and the Rwandan Ministry of Health (RMOH) was provided funds to implement and evaluate a district-level HSS intervention in two rural districts of Rwanda. Design The partnership provided limited funds to 14 health centers for targeted systems support in 2010; six others received support prior to the intervention (reference). RMOH health systems norms were mapped across the WHO HSS framework, scored from 0 to 10 and incorporated into a rapid survey assessing 11 domains of facility readiness. Stakeholder meetings allowed partnership leaders to review results, set priorities, and allocate resources. Investments included salary support, infrastructure improvements, medical equipment, and social support for patients. We compared facility domain scores from the start of the intervention to 12 months and tested for correlation between change in score and change in funding allocation to assess equity in our approach. Results We found significant improvements among intervention facilities from baseline to 12 months across several domains [infrastructure (+4, p=0.0001), clinical services (+1.2, p=0.03), infection and sanitation control (+0.6, p=0.03), medical equipment (+1.0, p=0.02), information use (+2, p=0.002)]. Composite score across domains improved from 6.2 at baseline to 7.4 at 12 months (p=0.002). Across facilities, 50% had composite scores greater than the average score among reference facilities (7.4) at 12 months compared to none at baseline. Conclusions Rapid facility surveys, stakeholder engagement, and information feedback can be used for gap analysis and resource allocation. This approach can achieve effective use

  10. Non-pharmacological, multicomponent group therapy in patients with degenerative dementia: a 12-month randomzied, controlled trial

    PubMed Central

    2011-01-01

    Background Currently available pharmacological and non-pharmacological treatments have shown only modest effects in slowing the progression of dementia. Our objective was to assess the impact of a long-term non-pharmacological group intervention on cognitive function in dementia patients and on their ability to carry out activities of daily living compared to a control group receiving the usual care. Methods A randomized, controlled, single-blind longitudinal trial was conducted with 98 patients (follow-up: n = 61) with primary degenerative dementia in five nursing homes in Bavaria, Germany. The highly standardized intervention consisted of motor stimulation, practice in activities of daily living, and cognitive stimulation (acronym MAKS). It was conducted in groups of ten patients led by two therapists for 2 hours, 6 days a week for 12 months. Control patients received treatment as usual. Cognitive function was assessed using the cognitive subscale of the Alzheimer's Disease Assessment Scale (ADAS-Cog), and the ability to carry out activities of daily living using the Erlangen Test of Activities of Daily Living (E-ADL test) at baseline and after 12 months. Results Of the 553 individuals screened, 119 (21.5%) were eligible and 98 (17.7%) were ultimately included in the study. At 12 months, the results of the per protocol analysis (n = 61) showed that cognitive function and the ability to carry out activities of daily living had remained stable in the intervention group but had decreased in the control patients (ADAS-Cog: adjusted mean difference: -7.7, 95% CI -14.0 to -1.4, P = 0.018, Cohen's d = 0.45; E-ADL test: adjusted mean difference: 3.6, 95% CI 0.7 to 6.4, P = 0.015, Cohen's d = 0.50). The effect sizes for the intervention were greater in the subgroup of patients (n = 50) with mild to moderate disease (ADAS-Cog: Cohen's d = 0.67; E-ADL test: Cohen's d = 0.69). Conclusions A highly standardized, non-pharmacological, multicomponent group intervention conducted

  11. Disturbed intracortical excitability in early Parkinson's disease is l-DOPA dose related: a prospective 12-month paired TMS study.

    PubMed

    Bares, Martin; Kanovský, Petr; Rektor, Ivan

    2007-12-01

    We were interested to know if chronic l-DOPA treatment in Parkinson's disease (PD) patients could restore impairment of the intracortical excitability, when this difference could occur, and if it was related to the total daily dose of l-DOPA. Twelve patients with early PD were studied using paired transcranial magnetic stimulation before the administration of l-DOPA, and then after 3, 6, and 12 months of l-DOPA treatment. The level of disturbed intracortical excitability strongly correlated with the total daily dose of l-DOPA. The level of cortical excitability in PD patients seems to be indirectly related to the nigro-striatal functioning.

  12. Peak Oxygen Uptake after Cardiac Rehabilitation: A Randomized Controlled Trial of a 12-Month Maintenance Program versus Usual Care

    PubMed Central

    Madssen, Erik; Arbo, Ingerid; Granøien, Ingrid; Walderhaug, Liv; Moholdt, Trine

    2014-01-01

    Background Exercise capacity is a strong predictor of survival in patients with coronary artery disease (CAD). Exercise capacity improves after cardiac rehabilitation exercise training, but previous studies have demonstrated a decline in peak oxygen uptake after ending a formal rehabilitation program. There is a lack of knowledge on how long-term exercise adherence can be achieved in CAD patients. We therefore assessed if a 12-month maintenance program following cardiac rehabilitation would lead to increased adherence to exercise and increased exercise capacity compared to usual care. Materials and Methods Two-centre, open, parallel randomized controlled trial with 12 months follow-up comparing usual care to a maintenance program. The maintenance program consisted of one monthly supervised high intensity interval training session, a written exercise program and exercise diary, and a maximum exercise test every third month during follow-up. Forty-nine patients (15 women) on optimal medical treatment were included following discharge from cardiac rehabilitation. The primary endpoint was change in peak oxygen uptake at follow-up; secondary endpoints were physical activity level, quality of life and blood markers of cardiovascular risk. Results There was no change in peak oxygen uptake from baseline to follow-up in either group (intervention group 27.9 (±4.7) to 28.8 (±5.6) mL·kg (-1) min (−1), control group 32.0 (±6.2) to 32.8 (±5.8) mL·kg (−1) min (−1), with no between-group difference, p = 0.22). Quality of life and blood biomarkers remained essentially unchanged, and both self-reported and measured physical activity levels were similar between groups after 12 months. Conclusions A maintenance exercise program for 12 months did not improve adherence to exercise or peak oxygen uptake in CAD patients after discharge from cardiac rehabilitation compared to usual care. This suggests that infrequent supervised high intensity interval training sessions are

  13. Retrofit Weight-Loss Outcomes at 6, 12, and 24 Months and Characteristics of 12-Month High Performers: A Retrospective Analysis

    PubMed Central

    Hanson, Nicholas Buck; Kachin, Kevin; Berger, Jan

    2016-01-01

    Background Obesity is the leading cause of preventable death costing the health care system billions of dollars. Combining self-monitoring technology with personalized behavior change strategies results in clinically significant weight loss. However, there is a lack of real-world outcomes in commercial weight-loss program research. Objective Retrofit is a personalized weight management and disease-prevention solution. This study aimed to report Retrofit’s weight-loss outcomes at 6, 12, and 24 months and characterize behaviors, age, and sex of high-performing participants who achieved weight loss of 10% or greater at 12 months. Methods A retrospective analysis was performed from 2011 to 2014 using 2720 participants enrolled in a Retrofit weight-loss program. Participants had a starting body mass index (BMI) of >25 kg/m² and were at least 18 years of age. Weight measurements were assessed at 6, 12, and 24 months in the program to evaluate change in body weight, BMI, and percentage of participants who achieved 5% or greater weight loss. A secondary analysis characterized high-performing participants who lost ≥10% of their starting weight (n=238). Characterized behaviors were evaluated, including self-monitoring through weigh-ins, number of days wearing an activity tracker, daily step count average, and engagement through coaching conversations via Web-based messages, and number of coaching sessions attended. Results Average weight loss at 6 months was −5.55% for male and −4.86% for female participants. Male and female participants had an average weight loss of −6.28% and −5.37% at 12 months, respectively. Average weight loss at 24 months was −5.03% and −3.15% for males and females, respectively. Behaviors of high-performing participants were assessed at 12 months. Number of weigh-ins were greater in high-performing male (197.3 times vs 165.4 times, P=.001) and female participants (222 times vs 167 times, P<.001) compared with remaining participants

  14. Maladaptive cognitions predict changes in problematic gaming in highly-engaged adults: A 12-month longitudinal study.

    PubMed

    Forrest, Cameron J; King, Daniel L; Delfabbro, Paul H

    2017-02-01

    Understanding the role of maladaptive gaming-related cognitions may assist in screening and interventions for problematic gaming, including Internet gaming disorder (IGD). Cognitive-behavioural interventions that target specific cognitions related to gaming may be more effective than more general approaches that focus only on preoccupation with games. Although past research has identified cross-sectional associations between maladaptive cognitions and problematic gaming, it is less clear whether these cognitions can predict future changes in problematic gaming behaviour. The present study employed an 18-item measure of gaming cognition, assessing perfectionism, cognitive salience, regret, and behavioural salience, to investigate potential changes in problematic gaming over a 12-month period. The sample included 465 Australian adults (84% male, Mage=26.2years). It was found that individuals who became problematic gamers over 12months had higher baseline scores on perfectionism (d=1.20), cognitive salience (d=0.74) and regret (d=0.69) than those who remained non-problematic gamers. Problematic gamers who became non-problematic gamers had lower baseline perfectionism scores (d=0.62) than those who remained problematic gamers. Cognitive change accounted for an additional 28% of variance in problematic gaming scores beyond gender, age, and frequency of gaming. These findings suggest that maladaptive gaming-related cognitions could be screened in clinical trials to aid in case formulation and inform decisions on needed interventions to deliver optimal client outcomes.

  15. Social and Behavioral Outcomes following Childhood Traumatic Brain Injury: What Predicts Outcome at 12 Months Post-Insult?

    PubMed

    Catroppa, Cathy; Hearps, Stephen; Crossley, Louise; Yeates, Keith; Beauchamp, Miriam; Fusella, Jessica; Anderson, Vicki

    2017-04-01

    This study sought to investigate social and behavioral outcomes 12 months following childhood traumatic brain injury (TBI) and to identify predictors of these outcomes. The study also compared rates of impairment in social and behavioral outcomes at 12 months post-injury between children with TBI and a typically developing (TD) control group. The study comprised 114 children ages 5.5 to 16.0 years, 79 with mild, moderate, or severe TBI and 35 TD children, group-matched for age, sex and socio-economic status. Children with TBI were recruited via consecutive hospital admissions and TD children from the community. Social and behavioral outcomes were measured via parent-rated questionnaires. Analysis of covariance models identified a significant mean difference between the mild and moderate groups for social problems only, but the moderate and severe TBI groups showed a higher rate of impairment, particularly in externalizing problems. Pre-injury function, injury severity, parent mental health, and child self-esteem all contributed significantly to predicting social and behavioral outcomes. Both injury and non-injury factors should be considered when identifying children at risk for long-term difficulties in social and behavioral domains.

  16. Food and Nutrient Intake among 12-Month-Old Norwegian-Somali and Norwegian-Iraqi Infants

    PubMed Central

    Grewal, Navnit Kaur; Andersen, Lene Frost; Kolve, Cathrine Solheim; Kverndalen, Ingrid; Torheim, Liv Elin

    2016-01-01

    The aim of the present paper was to describe food and nutrient intake among 12-month-old Norwegian-Somali and Norwegian-Iraqi infants, with a focus on iron and vitamin D intake. A cross-sectional survey was conducted from August 2013 through September 2014. Eighty-nine mothers/infants of Somali origin and 77 mothers/infants of Iraqi origin residing in Eastern Norway participated in the study. Data were collected using two 24-h multiple-pass recalls. Forty percent of the Norwegian-Somali infants and 47% of the Norwegian-Iraqi infants were breastfed at 12 months of age (p = 0.414). Median energy percentages (E%) from protein, fat and carbohydrates were within the recommended intake ranges, except the level of saturated fats (12–13 E%). Median intakes of almost all micronutrients were above the recommended daily intakes. Most of the infants consumed iron-enriched products (81%) and received vitamin D supplements (84%). The median intakes of iron and vitamin D were significantly higher among infants receiving iron-enriched products and vitamin D supplements compared to infants not receiving such products (p < 0.001). The findings indicate that the food and nutrient intake of this group of infants in general seems to be in accordance with Norwegian dietary recommendations. Foods rich in iron and vitamin D supplements were important sources of the infants’ intake of iron and vitamin D and should continue to be promoted. PMID:27690092

  17. Employment-based reinforcement of adherence to oral naltrexone in unemployed injection drug users: 12-month outcomes.

    PubMed

    Dunn, Kelly; DeFulio, Anthony; Everly, Jeffrey J; Donlin, Wendy D; Aklin, Will M; Nuzzo, Paul A; Leoutsakos, Jeannie-Marie S; Umbricht, Annie; Fingerhood, Michael; Bigelow, George E; Silverman, Kenneth

    2015-06-01

    Oral naltrexone could be a promising relapse-prevention pharmacotherapy for recently detoxified opioid-dependent patients; however, interventions are often needed to promote adherence with this treatment approach. We recently conducted a study to evaluate a 26-week employment-based reinforcement intervention of oral naltrexone in unemployed injection drug users (Dunn et al., 2013). Participants were randomly assigned into a contingency (n = 35) group required to ingest naltrexone under staff observation to gain entry into a therapeutic workplace or a prescription (n = 32) group given a take-home supply of oral naltrexone and access to the workplace without observed ingestion. Monthly urine samples were collected and analyzed for evidence for naltrexone adherence, opioid use, and cocaine use. As previously reported, contingency participants provided significantly more naltrexone-positive urine samples than prescription participants during the 26-week intervention period. The goal of this current study is to report the 12-month outcomes, which occurred 6 months after the intervention ended. Results at the 12-month visit showed no between-groups differences in naltrexone-positive, opioid-negative, or cocaine-negative urine samples and no participant self-reported using naltrexone at the follow-up visit. These results show that even after a period of successfully reinforced oral naltrexone adherence, longer-term naltrexone use is unlikely to be maintained after reinforcement contingencies are discontinued. (PsycINFO Database Record

  18. The association between self-reported racial discrimination and 12-month DSM-IV mental disorders among Asian Americans nationwide

    PubMed Central

    Spencer, Michael; Chen, Juan; Yip, Tiffany; Takeuchi, David T.

    2007-01-01

    Growing research finds that reports of discrimination are associated with mental health. However, many US studies are focused on regional samples and do not control for important confounders such as other stressors and health conditions. The present study examines the association between self-reported racial discrimination and DSM-IV defined mental disorders among Asian respondents to the 2002–2003 US National Latino and Asian American Study (n=2,047). Logistic regression analyses indicated that self-reported racial discrimination was associated with greater odds of having any DSM-IV disorder, depressive disorder, or anxiety disorder within the past 12 months -- controlling for sociodemographic characteristics, acculturative stress, family cohesion, poverty, self-rated health, chronic physical conditions, and social desirability. Further, multinomial logistic regression found that individuals who reported discrimination were at a twofold greater risk of having one disorder within the past 12 months, and a threefold greater risk of having two or more disorders. Thus, self-reported discrimination was associated with increased risk of mental disorders among Asian Americans across the United States and this relationship was not explained by social desirability, physical health, other stressors, and sociodemographic factors. Should these associations ultimately be shown enduring and causal, they suggest that policies designed to reduce discrimination may help improve mental health. PMID:17374553

  19. Early Therapeutic Alliance, Treatment Retention, and 12-Month Outcomes in a Healthy Lifestyles Intervention for People with Psychotic Disorders.

    PubMed

    Andrews, Michelle; Baker, Amanda L; Halpin, Sean A; Lewin, Terry J; Richmond, Robyn; Kay-Lambkin, Frances J; Filia, Sacha L; Castle, David; Williams, Jill M; Clark, Vanessa; Callister, Robin

    2016-12-01

    Engaging and retaining individuals with psychotic disorders in psychosocial treatments is difficult. Early therapeutic alliance, treatment retention, and 12-month outcomes were examined in a subsample of smokers with a psychotic disorder (N = 178) participating in a healthy lifestyles study comparing a telephone versus face-to-face delivered intervention. Therapeutic alliance was assessed using the Agnew Relationship Measure; primary outcomes were treatment retention and changes in symptoms and health behaviors. Contrary to expectations, early alliance did not predict treatment retention. However, elements of both client- and therapist-rated alliance predicted some clinical outcomes (e.g., higher confidence in the therapeutic alliance at session 1 predicted improvements in 12-month depression). Some modest interactions between early alliance and intervention condition were also identified (e.g., clients initially with lower self-perceived initiative, or higher therapist-perceived bonding benefited preferentially from the telephone-delivered intervention), highlighting the need to further examine the interplay between therapeutic alliance and treatment modality.

  20. Stable Cognitive Deficits in Schizophrenia Patients With Comorbid Obsessive-Compulsive Symptoms: A 12-Month Longitudinal Study

    PubMed Central

    Schirmbeck, Frederike

    2013-01-01

    Background: Amongst schizophrenia patients, a large subgroup of up to 25% also suffers from comorbid obsessive-compulsive symptoms (OCSs). The association between comorbid OCSs in these patients and neuropsychological impairment remains unclear and somewhat contradictory. Longitudinal approaches investigating the stability of OCS-associated cognitive deficits are missing. Methods: Thirty-seven patients with schizophrenia and comorbid OCSs and 43 schizophrenia patients without OCS were assessed with a comprehensive cognitive test battery and compared at baseline and, again, 12 months later. Results: Schizophrenia patients with comorbid OCSs showed significant pronounced deficits, with increasing effect sizes over the 12-month assessment period in specific cognitive areas such as visuospatial perception and visual memory (WAIS-R block design, Rey–Osterrieth Complex Figure Test), executive functioning (perseveration in the Wisconsin Card Sorting test), and cognitive flexibility (Trail Making test B). These cognitive domains are correlated with OCS severity and are known to be candidate cognitive domains in obsessive-compulsive disorder (OCD). Conclusions: OCSs in schizophrenia is associated with specific and longitudinally stable cognitive deficits, strongly arguing for at least partially overlapping neurobiological mechanisms with OCD. Prospective studies involving patients with at-risk mental states for psychosis are necessary to decipher the interaction of cognitive impairment and the clinical manifestations of schizophrenia and OCSs. This might facilitate the definition of patients at high risk for OCSs, an early detection of subclinical levels, therapeutic interventions, and clinical monitoring. PMID:23104864

  1. Employment-based Reinforcement of Adherence to Oral Naltrexone in Unemployed Injection Drug Users: 12-month Outcomes

    PubMed Central

    Dunn, Kelly; DeFulio, Anthony; Everly, Jeffrey J.; Donlin, Wendy D.; Aklin, Will M.; Nuzzo, Paul A.; Leoutsakos, Jeannie-Marie S.; Umbricht, Annie; Fingerhood, Michael; Bigelow, George E.; Silverman, Kenneth

    2015-01-01

    Oral naltrexone could be a promising relapse prevention pharmacotherapy for recently detoxified opioid-dependent patients, however interventions are often needed to promote adherence with this treatment approach. We recently conducted a study to evaluate a 26-week employment-based reinforcement intervention of oral naltrexone in unemployed injection drug users (Dunn et al., 2013). Participants were randomly assigned into a Contingency (n=35) group required to ingest naltrexone under staff observation to gain entry into a therapeutic workplace, or a Prescription (n=32) group given a take-home supply of oral naltrexone and access to the workplace without observed ingestion. Monthly urine samples were collected and analyzed for evidence for naltrexone adherence, opioid use, and cocaine use. As previously reported, Contingency participants provided significantly more naltrexone-positive urine samples than Prescription participants during the 26-week intervention period. The goal of this current study is to report the 12-month outcomes, which occurred 6 months after the intervention ended. Results at the 12-month visit showed no between-group differences in naltrexone-positive, opioid-negative, or cocaine-negative urine samples, and no participant self-reported using naltrexone at the follow-up visit. These results show that even after a period of successfully reinforced oral naltrexone adherence longer-term naltrexone use is unlikely to be maintained after reinforcement contingencies are discontinued. PMID:25134047

  2. Parental stress and child behavioral outcomes following substance abuse residential treatment. Follow-up at 6 and 12 months.

    PubMed

    Killeen, T; Brady, K T

    2000-07-01

    Residential treatment programs specifically designed for alcohol/drug-addicted women and their children have become a popular treatment modality across the United States. Outcome evaluation of these programs are beginning to show promising results. In this article, outcome data from a study of a residential substance abuse treatment program for women and young children in rural South Carolina will be presented. Data from 35 women and 23 children in the area of addiction severity, parenting and child emotional and behavioral development at 6 and 12 months following discharge from a substance abuse residential treatment program is examined. Results showed that women who completed treatment had better scores on addiction severity and parental stress, and their children had improved behavioral and emotional functioning at 6 and 12 months after discharge from the program. These results suggest that residential treatment has benefits for mothers and their children. This data adds to the growing body of evidence supporting intensive and inclusive care for certain groups of individuals with substance use disorders during critical periods.

  3. MAPT and PAICE: Tools for time series and single time point transcriptionist visualization and knowledge discovery

    PubMed Central

    Hosseini, Parsa; Tremblay, Arianne; Matthews, Benjamin F; Alkharouf, Nadim W

    2012-01-01

    With the advent of next-generation sequencing, -omics fields such as transcriptomics have experienced increases in data throughput on the order of magnitudes. In terms of analyzing and visually representing these huge datasets, an intuitive and computationally tractable approach is to map quantified transcript expression onto biochemical pathways while employing datamining and visualization principles to accelerate knowledge discovery. We present two cross-platform tools: MAPT (Mapping and Analysis of Pathways through Time) and PAICE (Pathway Analysis and Integrated Coloring of Experiments), an easy to use analysis suite to facilitate time series and single time point transcriptomics analysis. In unison, MAPT and PAICE serve as a visual workbench for transcriptomics knowledge discovery, data-mining and functional annotation. Both PAICE and MAPT are two distinct but yet inextricably linked tools. The former is specifically designed to map EC accessions onto KEGG pathways while handling multiple gene copies, detection-call analysis, as well as UN/annotated EC accessions lacking quantifiable expression. The latter tool integrates PAICE datasets to drive visualization, annotation, and data-mining. Availability The database is available for free at http://sourceforge.net/projects/paice/http://sourceforge.net/projects/mapt/ PMID:22493539

  4. Cytology and Human Papillomavirus Testing 6 to 12 Months after ASCUS or LSIL Cytology in Organized Screening To Predict High-Grade Cervical Neoplasia between Screening Rounds

    PubMed Central

    Sjøborg, Katrine D.; Nygård, Mari; Røysland, Kjetil; Campbell, Suzanne; Alfsen, G. Cecilie; Jonassen, Christine M.

    2012-01-01

    We carried out a prospective study comparing the performance of human papillomavirus (HPV) E6/E7 mRNA (PreTect HPV-Proofer; NorChip, Klokkarstua, Norway) and DNA (Amplicor HPV test; Roche Diagnostics, Basel, Switzerland) triage testing of women 6 to 12 months after atypical-squamous-cells-of-undetermined-significance (ASCUS) or low-grade-squamous-intraepithelial-lesion (LSIL) cytology in organized screening to predict high-grade cervical intraepithelial neoplasia of grade 2 or worse (CIN2+) between screening rounds. Between January 2005 and April 2008, 692 study women with screening-detected ASCUS/LSIL cytology 6 to 12 months earlier returned for HPV mRNA and DNA testing and repeat cytology. The median follow-up time was 3 years, using existing health care facilities. Follow-up test results were available for 625 women. Of the 145 CIN2+ cases detected during the study period, 95 (65.5%) were HPV mRNA positive 6 to 12 months after screening-detected ASCUS/LSIL, 44 (30.4%) were HPV mRNA negative, and 6 (4.1%) were invalid. The corresponding HPV DNA results were 139 (95.9%), 5 (3.4%), and 1 (0.7%), respectively. The cumulative incidences of CIN2+ 3 years after a negative HPV mRNA and DNA test were 10.3% (95% confidence interval [CI], 7.2 to 13.3%) and 1.8% (95% CI, 0.0 to 3.6%), respectively. The cumulative incidences of CIN2+ 3 years after positive HPV mRNA and DNA tests were 52.8% (95% CI, 40.1 to 60.1%) and 41.3% (95% CI, 35.5 to 46.6%), respectively. In conclusion, both positive HPV mRNA and DNA test results have a high enough long-term prediction of CIN2+ risk to consider referral to colposcopy as good practice when performed in delayed triage of women with ASCUS/LSIL cytology. In addition, the low CIN2+ risk among women with a negative Amplicor HPV test in our study confirms its safe use in a clinical setting. PMID:22518869

  5. Bifurcated method and apparatus for floating point addition with decreased latency time

    DOEpatents

    Farmwald, Paul M.

    1987-01-01

    Apparatus for decreasing the latency time associated with floating point addition and subtraction in a computer, using a novel bifurcated, pre-normalization/post-normalization approach that distinguishes between differences of floating point exponents.

  6. Testosterone replacement therapy does not promote priapism in hypogonadal men with sickle cell disease: 12-month safety report.

    PubMed

    Morrison, B F; Reid, M; Madden, W; Burnett, A L

    2013-07-01

    Hypogonadism, which is highly prevalent in men with sickle cell disease (SCD), affects quality of life and causes great morbidity. The safety of testosterone replacement therapy (TRT) in SCD in relation to priapism episodes is relatively unknown. Our aim was to monitor the safety of TRT in a cohort of seven hypogonadal men with SCD. Testosterone undecanoate (Nebido) 1 g was administered intramuscularly to adult men with homozygous SCD (Hb SS) having hypogonadism [serum total testosterone ≤12.0 nmol/L (346 ng/dL), reference range 12.5-38.1 nmol/L (360-1098 ng/dL)] for 12 months. Serum total testosterone, haemoglobin, haematocrit, renal and liver function tests, glucose and PSA measurements were done at baseline and 12-month follow-up. Trough serum total testosterone, haemoglobin and haematocrit were measured three monthly. Priapism events and adverse drug events were assessed every 3 months. International Index of Erectile Function (IIEF), Androgen Deficiency in the Ageing Male (ADAM) and World Health Organization Quality of Life (WHOQOL) questionnaires were administered at baseline, 6 and 12 months. Seven men with a mean age of 34.4 years were treated. Median total testosterone increased from 10.6 to 11.2 nmol/L (p = 0.46). Median serum lactate dehydrogenase levels decreased from 1445 to 1143.5 IU/L (p < 0.05), while all other laboratory indices remained stable. Injection site pain was the most frequently reported adverse event, with no increases in painful crises, hypersensitivity or oedema. After TRT, there was no significant increase in priapism frequency. Median questionnaire scores were increased for the IIEF (46-68, p = 0.018), reduced for ADAM (5.0-2.0, p = 0.016) and unchanged for WHOQOL (98-103, p = 0.086). TRT using testosterone undecanoate with eugonadal intent for hypogonadism appears to be safe in men with SCD. This treatment does not appear to promote priapism occurrences and rather it possibly improves sexual function. Future prospective

  7. Acculturation dimensions and 12-month mood and anxiety disorders across US Latino subgroups in the National Epidemiologic Survey of Alcohol and Related Conditions

    PubMed Central

    Wang, S.; Duarte, C. S.; Aggarwal, N. K.; Sánchez-Lacay, J. A.; Blanco, C.

    2016-01-01

    Background Individual-level measures of acculturation (e.g. age of immigration) have a complex relationship with psychiatric disorders. Fine-grained analyses that tap various acculturation dimensions and population subgroups are needed to generate hypotheses regarding the mechanisms of action for the association between acculturation and mental health. Method Study participants were US Latinos (N = 6359) from Wave 2 of the 2004–2005 National Epidemiologic Survey of Alcohol and Related Conditions (N = 34 653). We used linear χ2 tests and logistic regression models to analyze the association between five acculturation dimensions and presence of 12-month DSM-IV mood/anxiety disorders across Latino subgroups (Mexican, Puerto Rican, Cuban, ‘Other Latinos’). Results Acculturation dimensions associated linearly with past-year presence of mood/anxiety disorders among Mexicans were: (1) younger age of immigration (linear χ12=11.04, p < 0.001), (2) longer time in the United States (linear χ12=10.52, p < 0.01), (3) greater English-language orientation (linear χ12=14.57, p < 0.001), (4) lower Latino composition of social network (linear χ12=15.03, p < 0.001), and (5) lower Latino ethnic identification (linear χ12=7.29, p < 0.01). However, the associations were less consistent among Cubans and Other Latinos, and no associations with acculturation were found among Puerto Ricans. Conclusions The relationship between different acculturation dimensions and 12-month mood/anxiety disorder varies across ethnic subgroups characterized by cultural and historical differences. The association between acculturation measures and disorder may depend on the extent to which they index protective or pathogenic adaptation pathways (e.g. loss of family support) across population subgroups preceding and/or following immigration. Future research should incorporate direct measures of maladaptive pathways and their relationship to various acculturation dimensions. PMID:27087570

  8. Enzyme replacement therapy with alglucosidase alfa in 44 patients with late-onset glycogen storage disease type 2: 12-month results of an observational clinical trial.

    PubMed

    Strothotte, S; Strigl-Pill, N; Grunert, B; Kornblum, C; Eger, K; Wessig, C; Deschauer, M; Breunig, F; Glocker, F X; Vielhaber, S; Brejova, A; Hilz, M; Reiners, K; Müller-Felber, W; Mengel, E; Spranger, M; Schoser, Benedikt

    2010-01-01

    Late-onset glycogen storage disease type 2 (GSD2)/Pompe disease is a progressive multi-system disease evoked by a deficiency of lysosomal acid alpha-glucosidase (GAA) activity. GSD2 is characterized by respiratory and skeletal muscle weakness and atrophy, resulting in functional disability and reduced life span. Since 2006 alglucosidase alfa has been licensed as a treatment in all types of GSD2/Pompe disease. We here present an open-label, investigator-initiated observational study of alglucosidase alfa enzyme replacement therapy (ERT) in 44 late-onset GSD2 patients with various stages of disease severity. Alglucosidase alfa was given i.v. at the standard dose of 20 mg/kg every other week. Assessments included serial arm function tests (AFT), Walton Gardner Medwin scale (WGMS), timed 10-m walk tests, four-stair climb tests, modified Gowers' maneuvers, 6-min walk tests, MRC sum score, forced vital capacities (FVC), creatine kinase (CK) levels and SF-36 self-reporting questionnaires. All tests were performed at baseline and every 3 months for 12 months of ERT. We found significant changes from baseline in the modified Gowers' test, the CK levels and the 6-min walk test (341 +/- 149.49 m, median 342.25 m at baseline; 393 +/- 156.98 m; median 411.50 m at endpoint; p = 0.026), while all other tests were unchanged. ERT over 12 months revealed minor allergic reactions in 10% of the patients. No serious adverse events occurred. None of the patients died or required de novo ventilation. Our clinical outcome data imply stabilization of neuromuscular deficits over 1 year with mild functional improvement.

  9. Patient-reported outcomes 3 months after spine surgery: is it an accurate predictor of 12-month outcome in real-world registry platforms?

    PubMed

    Parker, Scott L; Asher, Anthony L; Godil, Saniya S; Devin, Clinton J; McGirt, Matthew J

    2015-12-01

    OBJECT The health care landscape is rapidly shifting to incentivize quality of care rather than quantity of care. Quality and outcomes registry platforms lie at the center of all emerging evidence-driven reform models and will be used to inform decision makers in health care delivery. Obtaining real-world registry outcomes data from patients 12 months after spine surgery remains a challenge. The authors set out to determine whether 3-month patient-reported outcomes accurately predict 12-month outcomes and, hence, whether 3-month measurement systems suffice to identify effective versus noneffective spine care. METHODS All patients undergoing lumbar spine surgery for degenerative disease at a single medical institution over a 2-year period were enrolled in a prospective longitudinal registry. Patient-reported outcome instruments (numeric rating scale [NRS], Oswestry Disability Index [ODI], 12-Item Short Form Health Survey [SF-12], EQ-5D, and the Zung Self-Rating Depression Scale) were recorded prospectively at baseline and at 3 months and 12 months after surgery. Linear regression was performed to determine the independent association of 3- and 12-month outcome. Receiver operating characteristic (ROC) curve analysis was performed to determine whether improvement in general health state (EQ-5D) and disability (ODI) at 3 months accurately predicted improvement and achievement of minimum clinical important difference (MCID) at 12 months. RESULTS A total of 593 patients undergoing elective lumbar surgery were included in the study. There was a significant correlation between 3-month and 12-month EQ-5D (r = 0.71; p < 0.0001) and ODI (r = 0.70; p < 0.0001); however, the authors observed a sizable discrepancy in achievement of a clinically significant improvement (MCID) threshold at 3 versus 12 months on an individual patient level. For postoperative disability (ODI), 11.5% of patients who achieved an MCID threshold at 3 months dropped below this threshold at 12 months; 10

  10. Relief of postural post dural puncture headache by an epidural blood patch 12 months after dural puncture.

    PubMed

    Klepstad, P

    1999-10-01

    A 20-year-old previously healthy male presented at the pain clinic with chronic headache of about one year duration. Clinical examination revealed no pathological manifestations. During the consultation the patient was drinking Coca-Cola. On direct questioning he told that drinking Coca-Cola gave partial relief from the headache, and that the headache started after he had received two spinal anaesthetics for treatment of a lower leg fracture. Postural post dural puncture headache was now suspected and an epidural blood patch performed. Despite an interval of nearly 12 months since the dural punctures, a single epidural blood patch completely relieved the headache. This case history demonstrates that an epidural blood patch should be tried if a chronic post dural puncture headache is suspected.

  11. LiDAR-IMU Time Delay Calibration Based on Iterative Closest Point and Iterated Sigma Point Kalman Filter.

    PubMed

    Liu, Wanli

    2017-03-08

    The time delay calibration between Light Detection and Ranging (LiDAR) and Inertial Measurement Units (IMUs) is an essential prerequisite for its applications. However, the correspondences between LiDAR and IMU measurements are usually unknown, and thus cannot be computed directly for the time delay calibration. In order to solve the problem of LiDAR-IMU time delay calibration, this paper presents a fusion method based on iterative closest point (ICP) and iterated sigma point Kalman filter (ISPKF), which combines the advantages of ICP and ISPKF. The ICP algorithm can precisely determine the unknown transformation between LiDAR-IMU; and the ISPKF algorithm can optimally estimate the time delay calibration parameters. First of all, the coordinate transformation from the LiDAR frame to the IMU frame is realized. Second, the measurement model and time delay error model of LiDAR and IMU are established. Third, the methodology of the ICP and ISPKF procedure is presented for LiDAR-IMU time delay calibration. Experimental results are presented that validate the proposed method and demonstrate the time delay error can be accurately calibrated.

  12. LiDAR-IMU Time Delay Calibration Based on Iterative Closest Point and Iterated Sigma Point Kalman Filter

    PubMed Central

    Liu, Wanli

    2017-01-01

    The time delay calibration between Light Detection and Ranging (LiDAR) and Inertial Measurement Units (IMUs) is an essential prerequisite for its applications. However, the correspondences between LiDAR and IMU measurements are usually unknown, and thus cannot be computed directly for the time delay calibration. In order to solve the problem of LiDAR-IMU time delay calibration, this paper presents a fusion method based on iterative closest point (ICP) and iterated sigma point Kalman filter (ISPKF), which combines the advantages of ICP and ISPKF. The ICP algorithm can precisely determine the unknown transformation between LiDAR-IMU; and the ISPKF algorithm can optimally estimate the time delay calibration parameters. First of all, the coordinate transformation from the LiDAR frame to the IMU frame is realized. Second, the measurement model and time delay error model of LiDAR and IMU are established. Third, the methodology of the ICP and ISPKF procedure is presented for LiDAR-IMU time delay calibration. Experimental results are presented that validate the proposed method and demonstrate the time delay error can be accurately calibrated. PMID:28282897

  13. Similar immunogenicity of measles-mumps-rubella (MMR) vaccine administrated at 8 months versus 12 months age in children.

    PubMed

    He, Hanqing; Chen, Enfu; Chen, Haiping; Wang, Zhifang; Li, Qian; Yan, Rui; Guo, Jing; Zhou, Yang; Pan, Jinren; Xie, Shuyun

    2014-06-30

    Two doses of measles-mumps-rubella (MMR) strategy has been recommended by World Health Organization and is also widely adopted in many countries. In order to provide the evidence for perfecting the immunization strategy of MMR, this study evaluated the safety and immunogenicity of MMR with different two-dose schedule in infants. 280 participants were enrolled and randomly allocated to Group 1 (first dose at 8 months) or Group 2 (first dose at 12 months), and both groups administered the second dose at 10 months later. Solicited local and general symptoms after each vaccination with MMR were mild and infrequent in all participants of two groups. After administration of the first dose of MMR, seropositive rates were 100% in both groups for measles, 89.3% in Group 1 and 87.1% in Group 2 for mumps (P=0.578), 92.0% in Group 1 and 92.9% in Group 2 (P=0.393). The seropositive rates of mumps decreased significantly (from >86% to <65%) both in two groups (P<0.001) 10 months after the first dose of MMR, but no significant change was found in measles and rubella. All children get the positive titer for three vaccines in two groups after given the second dose MMR, higher seroconversion rate was found for mumps both in two groups (71.7% vs 77.2%, P=0.370). In conclusion, this study indicated that the MMR was well tolerated and immunogenic against measles, mumps and rubella with schedule of first dose both at 8 months and 12 months age. Our findings strongly supported that two doses of MMR can be introduced by replacing the first dose of MR in current EPI with MMR at 8 months age and the second dose at 18 months in China.

  14. Oral hygiene and gingival health in patients with fixed prosthodontic appliances--a 12-month follow-up.

    PubMed

    Ortolan, Sladana Milardović; Viskić, Josko; Stefancić, Sanja; Sitar, Ksenija Rener; Vojvodić, Denis; Mehulić, Ketij

    2012-03-01

    The aim of this study was to assess and observe the oral hygiene and gingival condition in patients before and after fixed prosthodontic therapy through a 12-month period in combination with oral hygiene instructions. It was also analysed how factors, such as type of fixed prosthodontic appliance, constructive material, the position of a fixed partial denture (FPD) in the mouth, age and gender influenced oral hygiene. The dental arches were divided into three segments each and teeth and gingiva were examined using the Plaque and Gingiva Index by Silness and Löe, and for the mineralized deposits assessment the Calculus Index by Green and Vermillion was employed. The preliminary examination was conducted before the prosthodontic therapy, and the reexaminations were carried out 14 days, 1, 6 and 12 months after crown and/or FPD placement. A total of 93 subjects from the original study group of 146 patients attended all clinical examinations, while the rest was excluded. The sample consisted of 60 women, 33 men at age between 21 and 95 (average 51.8). A total of 39 patients had single crowns (C), 50 FPDs and 5 C+FPD. The frequency of plaque found during the preliminary visit was higher than that found in the other periods (p < 0.001). Patients with C showed better oral hygiene levels than patients with FPDs or C+FPDs (p = 0.001). Our results revealed no significant difference in oral hygiene status among patients with FPDs made of different materials (p = 0.083). The worst hygiene levels were found in patients with fixed prosthodontic appliances in both jaws (p = 0.012). Younger patients showed better hygiene levels than the older ones (p = 0.002). Our research showed that appropriate educational and motivational measures can lead to improved oral hygiene, even after FPD placement. Presumably, the oral health in a group of adult patients can be kept acceptable by providing a prophylactic oral hygiene program.

  15. Fixed-point vs. floating-point arithmetic comparison for adaptive optics real-time control computation

    NASA Astrophysics Data System (ADS)

    Martín-Hernando, Yolanda; Rodríguez-Ramos, Luis F.; Garcia-Talavera, Marcos R.

    2008-07-01

    Most computers in the past have been equipped with floating point processing capabilities, allowing an easy and brute-force solution for the machine computation errors, not requiring any specific tailoring of the computation in nearly hundred percent of situations. However, the computation needed for the adaptive optics real-time control in 30-50 meter telescopes is big enough to cause trouble to conventional von-Neumann processors, even if Moore's Law is valid for the next years. Field Programmable Gate Array (FPGAs) have been proposed as a viable alternative to cope with such computation needs[1,2], but--at least today's chips--will require fixed-point arithmetic to be used instead. It is then important to evaluate up to what point the accuracy and stability of the control system will be affected by this limitation. This paper presents the simulation and laboratory results of the comparison between both arithmetics, specifically evaluated in an adaptive optics system. The real-time controller has been modeled as black box having as input the wavefront sensor camera digital output data, providing a digital output to the actuators of the deformable mirror, and with the task of internally computing all outputs from the inputs. MATLAB fixed-point library has been used to evaluate the effect of different precision lengths (5-10 fractional bits) in the computation of the Shack-Hartmann subaperture centroid, in comparison with the reference 64-bit floating-point arithmetic and with the noise floor of the real system, concluding that the effect of the limited precision can be overcome by adequately selecting the number of fractional bits used in the representation, and tailoring that number with the needs at every step of the algorithm.

  16. Plasticity after perceptual narrowing for voice perception: reinstating the ability to discriminate monkeys by their voices at 12 months of age

    PubMed Central

    Friendly, Rayna H.; Rendall, Drew; Trainor, Laurel J.

    2013-01-01

    Differentiating individuals by their voice is an important social skill for infants to acquire. In a previous study, we demonstrated that the ability to discriminate individuals by voice follows a pattern of perceptual narrowing (Friendly et al., 2013). Specifically, we found that the ability to discriminate between two foreign-species (rhesus monkey) voices decreased significantly between 6 and 12 months of age. Also during this period, there was a trend for the ability to discriminate human voices to increase. Here we investigate the extent to which plasticity remains at 12 months, after perceptual narrowing has occurred. We found that 12-month-olds who received 2 weeks of monkey-voice training were significantly better at discriminating between rhesus monkey voices than untrained 12-month-olds. Furthermore, discrimination was reinstated to a level slightly better than that of untrained 6-month-olds, suggesting that voice-processing abilities remain considerably plastic at the end of the first year. PMID:24130540

  17. Influence of chlorhexidine concentration on the durability of etch-and-rinse dentin bonds: a 12-month in vitro study

    PubMed Central

    Breschi, Lorenzo; Cammelli, Federica; Visintini, Erika; Mazzoni, Annalisa; Vita, Francesca; Carrilho, Marcela; Cadenaro, Milena; Foulger, Stephen; Tay, Franklin R; Pashley, David; Di Lenarda, Roberto

    2013-01-01

    Objective To investigate the effect of 0.2% and 2% chlorhexidine (CHX) used as a therapeutic primer on the long-term bond strengths of two etch-and-rinse adhesive systems. Methods Adper Scotchbond 1XT (SB1) and XP-Bond (XPB) were evaluated. Etched dentin substrates were assigned to six treatment groups: (1) 0.2% CHX + SB1; (2) 2% CHX + SB1; (3) SB1 (control); (4) 0.2% CHX + XPB; (5) 2% CHX + XPB; (6) XPB (control). Composite build-ups were made and beams prepared for microtensile bond strength test. Beams were divided in three subgroups and either immediately pulled to failure or stored in artificial saliva for 6 or 12 months prior to testing. Data were evaluated by three-way ANOVA. Additional adhesive interfaces were prepared to investigate nanoleakage expression by TEM. Results SB1 and XPB showed similar immediate bond strength values with or without CHX pre-treatment (p>0.05). After 12 months, bonds fell from 43.9 ± 9.5 MPa to 20.1 ± 5.4 MPa and from 39.6 ± 9.4 MPa to 14.2 ± 5.0 MPa in control specimens for SB1 and XPB respectively, while bond fell only from 41.9±9.6MPa to 33.2 ± 8.3 MPa and 38.3 ± 8.9 MPa to 26.5 ± 10.9 (for SB1 and XPB respectively) when 0.2% CHX was previously used. CHX concentration did not affect bond strength values (0.2% vs 2%, p>.05). Nanoleakage increased during aging in controls, but reduced silver deposits were found in CHX-treated specimens. Conclusions Chlorhexidine significantly reduced the loss of bond strength seen in control bonds. Since no bacterial growth was present in the aging conditions, the results of this study suggest that endogenous factors thought to degrade the adhesive interface can be inhibited by CHX. Further in vivo trials should confirm the role of CHX in bond durability. PMID:19603582

  18. The TeleGuard trial of additional telemedicine care in CAD patients. 2 Morbidity and mortality after 12 months.

    PubMed

    Waldmann, Annika; Katalinic, Alexander; Schwaab, Bernhard; Richardt, Gert; Sheikhzadeh, Abdolhamid; Raspe, Heiner

    2008-01-01

    In the TeleGuard trial, 1500 patients with established coronary artery disease (CAD) were recruited and randomized to control or intervention groups. Patients in the intervention group were equipped with a 12-lead event recorder and could contact a call centre and transmit an ECG whenever they wished. In a 12-month study, the composite endpoint (all-cause mortality, myocardial infarction, re-hospitalization or re-vascularization) was seen in 40% of the intervention patients and in 38% of the control patients. In both groups, approximately 40% were re-hospitalized. In total, 73 patients experienced re-vascularization, 75 showed an infarction and 33 died. Equipping CAD patients with a 12-lead ECG device and providing a telemedicine centre with 24-hour availability did not decrease risk for the composite endpoint (re-hospitalization, re-vascularization, (subsequent) myocardial infarction and/or death). It is likely that the clinical pathway used in the telemedicine centre led to an increased hospital admission rate in the intervention group.

  19. Comparison of Bone Loss around Bone Platform Shift and Non-Bone Platform Shift Implants After 12 Months

    PubMed Central

    Rokn, Amir Reza; Badri, Samareh; Rasouli Ghahroudi, Amir Alireza; Manasheof, Rebeca; Kharazi Fard, Mohamad Javad; Barikani, Hamidreza

    2015-01-01

    Objectives: The aim of the present randomized clinical trial was to evaluate marginal bone loss around two types of implants modified at the neck area: Nobel Active and Nobel Replace Groovy, both manufactured by Nobel Biocare. Materials and Methods: A total of 25 Nobel Active and 21 Nobel Replace Groovy implants were included in the present study. The implants were placed based on the relevant protocol and patient inclusion and exclusion criteria. The amount of bone loss around implants was compared at 6 and 12-month intervals using digital periapical radiographs. Results: The mean bone loss values in the Nobel Active and Nobel Replace Groovy groups were 0.682 mm and 0.645 mm, respectively, with no statistically significant difference based on the results of independent t-test (P=0.802). Conclusion: Use of both implant types yielded favorable results, with high durability. The two implant types exhibited no superiority over each other in terms of bone loss. PMID:26622270

  20. 12-months metabolic changes among gender dysphoric individuals under cross-sex hormone treatment: a targeted metabolomics study

    PubMed Central

    Auer, Matthias K.; Cecil, Alexander; Roepke, Yasmin; Bultynck, Charlotte; Pas, Charlotte; Fuss, Johannes; Prehn, Cornelia; Wang-Sattler, Rui; Adamski, Jerzy; Stalla, Günter K.; T’Sjoen, Guy

    2016-01-01

    Metabolomic analyses in epidemiological studies have demonstrated a strong sexual dimorphism for most metabolites. Cross-sex hormone treatment (CSH) in transgender individuals enables the study of metabolites in a cross-gender setting. Targeted metabolomic profiling of serum of fasting transmen and transwomen at baseline and following 12 months of CSH (N = 20/group) was performed. Changes in 186 serum metabolites and metabolite ratios were determined by targeted metabolomics analysis based on ESI-LC-MS/MS. RandomForest (RF) analysis was applied to detect metabolites of highest interest for grouping of transwomen and transmen before and after initiation of CSH. Principal component analysis (PCA) was performed to check whether group differentiation was achievable according to these variables and to see if changes in metabolite levels could be explained by a priori gender differences. PCA predicted grouping of individuals-determined by the citrulline/arginine-ratio and the amino acids lysine, alanine and asymmetric dimethylarginine - in addition to the expected grouping due to changes in sex steroids and body composition. The fact that most of the investigated metabolites did, however, not change, indicates that the majority of sex dependent differences in metabolites reported in the literature before may primarily not be attributable to sex hormones but to other gender-differences. PMID:27833161

  1. Advertisements for medicines in leading medical journals in 18 countries: a 12-month survey of information content and standards.

    PubMed

    Herxheimer, A; Lundborg, C S; Westerholm, B

    1993-01-01

    The information content of 6,710 advertisements for medicines in medical journals was surveyed to provide a baseline for monitoring the effect of WHO's Ethical Criteria for Medicinal Drug Promotion. The advertisements (ads) appeared during 12 months (1987-1988) in 23 leading national medical journals in 18 countries. Local participants, mostly doctors or pharmacists, examined them. The presence or absence in each ad of important information was noted. In most ads the generic name appeared in smaller type than the brand name. Indications were mentioned more often than the negative effects of medicines. The ads gave less pharmacological than medical information. However, important warnings and precautions were missing in half, and side effects and contraindications in about 40 percent. Prices tended to be given only in countries where a social security system pays for the medicines. The information content of ads in the developing countries differed surprisingly little from that in the industrialized countries. Almost all the ads (96 percent) included one or more pictures; 58 percent of these were considered irrelevant. The authors believe it is a mistake to regard ads as trivial. If they are not considered seriously they will influence the use of medicines as they are intended to do, but read critically they can provide useful information.

  2. The Primary Prevention of PTSD in Firefighters: Preliminary Results of an RCT with 12-Month Follow-Up

    PubMed Central

    Rees, Clare S.; Mazzucchelli, Trevor G.; Kane, Robert T.

    2016-01-01

    Aim To develop and evaluate an evidence-based and theory driven program for the primary prevention of Post-traumatic Stress Disorder (PTSD). Design A pre-intervention / post-intervention / follow up control group design with clustered random allocation of participants to groups was used. The “control” group received “Training as Usual” (TAU). Method Participants were 45 career recruits within the recruit school at the Department of Fire and Emergency Services (DFES) in Western Australia. The intervention group received a four-hour resilience training intervention (Mental Agility and Psychological Strength training) as part of their recruit training school curriculum. Data was collected at baseline and at 6- and 12-months post intervention. Results We found no evidence that the intervention was effective in the primary prevention of mental health issues, nor did we find any significant impact of MAPS training on social support or coping strategies. A significant difference across conditions in trauma knowledge is indicative of some impact of the MAPS program. Conclusion While the key hypotheses were not supported, this study is the first randomised control trial investigating the primary prevention of PTSD. Practical barriers around the implementation of this program, including constraints within the recruit school, may inform the design and implementation of similar programs in the future. Trial Registration Australian New Zealand Clinical Trials Registry (ANZCTR) ACTRN12615001362583 PMID:27382968

  3. Comparative effectiveness of switching antipsychotic drug treatment to aripiprazole or ziprasidone for improving metabolic profile and atherogenic dyslipidemia: a 12-month, prospective, open-label study.

    PubMed

    Chen, Yuejin; Bobo, William V; Watts, Kara; Jayathilake, Karuna; Tang, Tinlai; Meltzer, Herbert Y

    2012-09-01

    We studied the effects of switching antipsychotic drug-treated patients with schizophrenia or bipolar disorder who evidenced adverse metabolic side effects as indicated by a triglyceride/high-density lipoprotein ratio (TG/HDL) ≥ 3.5 to aripiprazole (ARIP; 5-30 mg/day, n = 24) or ziprasidone (ZIP; 40-160 mg/day, n = 28). Anthropometric and metabolic measures, psychopathology, quality of life and motor adverse effects were assessed over a 52-week period with evaluations at baseline, 6, 12, 26 and 52 weeks. There were statistically significant improvements in body weight, body mass index (BMI), TG, HDL and TG/HDL which did not differ between treatments. However, numerous secondary measures including weight and BMI, and the proportion of patients who lost ≥ 7% or who no longer met criteria for obesity, favored ZIP over ARIP. Decreases in total cholesterol and increases in HDL-cholesterol also favored ZIP. On the other hand, decreases in TG/HDL ratio and reduction in HgbA1c favored ARIP. There were no significant time or group × time interaction effects for most psychopathology measures; however, Global Assessment of Functioning Scores favored ARIP at 6 and 12 months. We conclude that switching patients with evidence of metabolic side effects to either ARIP or ZIP may be beneficial for some, but not all metabolic measures, with minimal risk of worsening of psychopathology and possibly some benefit in that regard as well.

  4. Dorsal root ganglion stimulation yielded higher treatment success rate for complex regional pain syndrome and causalgia at 3 and 12 months: a randomized comparative trial

    PubMed Central

    Deer, Timothy R.; Levy, Robert M.; Kramer, Jeffery; Poree, Lawrence; Amirdelfan, Kasra; Grigsby, Eric; Staats, Peter; Burton, Allen W.; Burgher, Abram H.; Obray, Jon; Scowcroft, James; Golovac, Stan; Kapural, Leonardo; Paicius, Richard; Kim, Christopher; Pope, Jason; Yearwood, Thomas; Samuel, Sam; McRoberts, W. Porter; Cassim, Hazmer; Netherton, Mark; Miller, Nathan; Schaufele, Michael; Tavel, Edward; Davis, Timothy; Davis, Kristina; Johnson, Linda; Mekhail, Nagy

    2016-01-01

    Abstract Animal and human studies indicate that electrical stimulation of dorsal root ganglion (DRG) neurons may modulate neuropathic pain signals. ACCURATE, a pivotal, prospective, multicenter, randomized comparative effectiveness trial, was conducted in 152 subjects diagnosed with complex regional pain syndrome or causalgia in the lower extremities. Subjects received neurostimulation of the DRG or dorsal column (spinal cord stimulation, SCS). The primary end point was a composite of safety and efficacy at 3 months, and subjects were assessed through 12 months for long-term outcomes and adverse events. The predefined primary composite end point of treatment success was met for subjects with a permanent implant who reported 50% or greater decrease in visual analog scale score from preimplant baseline and who did not report any stimulation-related neurological deficits. No subjects reported stimulation-related neurological deficits. The percentage of subjects receiving ≥50% pain relief and treatment success was greater in the DRG arm (81.2%) than in the SCS arm (55.7%, P < 0.001) at 3 months. Device-related and serious adverse events were not different between the 2 groups. Dorsal root ganglion stimulation also demonstrated greater improvements in quality of life and psychological disposition. Finally, subjects using DRG stimulation reported less postural variation in paresthesia (P < 0.001) and reduced extraneous stimulation in nonpainful areas (P = 0.014), indicating DRG stimulation provided more targeted therapy to painful parts of the lower extremities. As the largest prospective, randomized comparative effectiveness trial to date, the results show that DRG stimulation provided a higher rate of treatment success with less postural variation in paresthesia intensity compared to SCS. PMID:28030470

  5. Change in sense of coherence (SOC) and symptoms of depression among old non-demented persons 12 months after hospitalization.

    PubMed

    Helvik, Anne-Sofie; Engedal, Knut; Selbaek, Geir

    2013-01-01

    We studied whether SOC of older adults (≥65 years) without cognitive impairment had changed 1-year after medical hospitalization (T2) and to examine what factors were associated with the change. At baseline (T1) and (T2), the 13-item version of the SOC scale assessed coping, and the Hospital Anxiety and Depression (HAD) Scale assessed symptoms of depression and anxiety. The cognitive state was assessed by means of the mini-mental state examination (MMSE). Physical health was measured with the Charlson Index and functional status with Lawton and Brody's scales for physical self-maintenance (PSMS) and the instrumental activities of daily living (I-ADL). In all, 97 (51 men) persons with a mean age of 75.3 (SD 6.3) years and Mini Mental State Evaluation (MMSE) score of 28.0 (SD 1.6) participated. The SOC improved significantly from baseline to 1-year later (mean 76.5, SD 11.4 vs. mean 79.1, SD 9.1, p≤0.01). Improved SOC was associated with a low SOC at baseline and living without assistance during the study period. The prevalence of depression (HAD-D≥8) and the mean depression (HAD-D) score did not change between the first and second data collection (HAD-D≥8: 3.1% vs. 4.1% and HAD-D score: mean 1.8, SD 2.3 vs. mean 2.4, SD 2.4). However, an improved SOC and reduced anxiety symptoms at the second time point were associated with reduced HAD-D. The mean SOC improved 1-year after hospitalization. The symptoms of depression did not change, but reduction of symptoms of depression at the second time point was associated with improved SOC.

  6. Increase in the heart rate variability with deep breathing in diabetic patients after 12-month exercise training.

    PubMed

    Sridhar, Bhagyalakshmi; Haleagrahara, Nagaraja; Bhat, Ramesh; Kulur, Anupama Bangra; Avabratha, Sridhar; Adhikary, Prabha

    2010-02-01

    Autonomic neuropathy in diabetes leads to impaired regulation of blood pressure and heart rate variability (HRV), which is due to a shift in cardiac autonomic balance towards sympathetic dominance. Lower HRV has been considered a predictor of cardiac mortality and morbidity. Deep breathing test is a simple method to measure HRV and it provides a sensitive measure of cardiac autonomic function. The effect of long-term physical activity on HRV in type-2 diabetes mellitus is inconclusive. We aimed to evaluate the effects of regular physical exercise on HRV with deep breathing in type 2 diabetes (n = 105). Thirty normotensive diabetic patients and 25 hypertensive diabetic patients underwent physical exercise program for 12 months, and the other 50 patients (22 normotensive and 28 hypertensive diabetic patients) were considered the non-exercised group. Electrocardiogram was recorded during deep breathing and HRV was measured. Regular exercise significantly increased HRV in diabetic patients with and without hypertension. The degree of the increase in HRV was greater in hypertensive diabetic patients (p < 0.01) than in normotensive diabetic patients (p < 0.05). After exercise, glycosylated hemoglobin levels were decreased in both groups of diabetic patients. Moreover, the hypertensive diabetic patients showed a decrease (p < 0.05) in blood pressure after regular exercise. Thus, regular exercise training increases HRV, suggesting that there is a shift in the cardiac sympathovagal balance in favor of parasympathetic dominance in diabetic patients. Long-term physical training may be an effective means to reverse the autonomic dysregulation seen in type 2 diabetes.

  7. A review of the revised Functional Capacity Index as a predictor of 12 month outcomes following injury.

    PubMed

    Palmer, Cameron S; Cameron, Peter A; Gabbe, Belinda J

    2017-03-01

    The measurement of functional outcomes following severe trauma has been widely recognised as a priority for countries with developed trauma systems. In this respect, the Functional Capacity Index (FCI), a multi-attribute index which has been incorporated into the most recent Abbreviated Injury Scale (AIS) dictionary, is potentially attractive as it offers 12-month functional outcome predictions for patients captured by existing AIS-coded datasets. This review paper outlines the development, construction and validation of the predictive form of the FCI (termed the pFCI), the modifications made which produced the currently available 'revised' pFCI, and the extent to which the revised pFCI has been validated and used. The original pFCI performed poorly in validation studies. The revised pFCI does not address many of the identified limitations of the original version, and despite the ready availability of a truncated version in the AIS dictionary, it has only been used in a handful of studies since its introduction several years ago. Additionally, there is little evidence for its validity. It is suggested that the pFCI should be better validated, whether in the narrow population group of young, healthy individuals for which it was developed, or in the wider population of severely injured patients. Methods for accounting for the presence of multiple injures (of which two have currently been used) should also be evaluated. Many factors other than anatomical injury are known to affect functional outcomes following trauma. However, it is intuitive that any model which attempts to predict the ongoing morbidity burden in a trauma population should consider the effects of the injuries sustained. Although the revised pFCI potentially offers a low-cost assessment of likely functional limitations resulting from anatomical injury, it must be more rigorously evaluated before more comprehensive predictive tools can be developed from it.

  8. Disease concurrence in diabetes mellitus: a study of concurrent morbidity over 12 months using diabetes mellitus as an example.

    PubMed Central

    Fleming, D M; Crombie, D L; Cross, K W

    1991-01-01

    STUDY OBJECTIVE--The aim was to examine disease concurrence, using diabetes mellitus as an ullustrative example. DESIGN--The study involved a general practice morbidity survey, conducted over 12 months in 1981-82. All patients who consulted their general practitioners with a diagnosis of diabetes mellitus (type 1 or type 2) were identified and the number of these who consulted with additional morbidities were counted for each rubric of the Royal College of General Practitioners' modification of the International Classification of Disease. These observed numbers were then compared with expected numbers calculated from the total non-diabetic population after standardisation by age. Standardised person consulting ratios (SPCR) were derived and the 99% confidence intervals (CI) surrounding these values calculated. SETTING--This was a national survey involving the whole of England and Wales. PATIENTS--The study involved 280,000 patients from selected general practices, of whom 953 males and 1035 females consulted their general practitioners with diabetes. MEASUREMENTS AND MAIN RESULTS--In an examination of 80 disease rubrics in the diabetic population in which there were at least 20 observed or expected cases, there were 34 among males and 28 among females in which there were increased values of the SPCR, and none in which the SPCR was decreased. SPCRs were high for infections generally (bacterial, fungal, and viral) and particularly so for cardiovascular disorders and for hypothyroidism in males. Though SPCRs for upper respiratory infections were increased, those for asthma and hay fever were not. SPCRs for neoplasms as a group were not raised. CONCLUSION--By confirming other work and widely held clinical opinion, this study has shown the potential of this data base for the examination of disease concurrence. PMID:2045750

  9. Detecting shifts in gene regulatory networks during time-course experiments at single-time-point temporal resolution.

    PubMed

    Takenaka, Yoichi; Seno, Shigeto; Matsuda, Hideo

    2015-10-01

    Comprehensively understanding the dynamics of biological systems is one of the greatest challenges in biology. Vastly improved biological technologies have provided vast amounts of information that must be understood by bioinformatics and systems biology researchers. Gene regulations have been frequently modeled by ordinary differential equations or graphical models based on time-course gene expression profiles. The state-of-the-art computational approaches for analyzing gene regulations assume that their models are same throughout time-course experiments. However, these approaches cannot easily analyze transient changes at a time point, such as diauxic shift. We propose a score that analyzes the gene regulations at each time point. The score is based on the information gains of information criterion values. The method detects the shifts in gene regulatory networks (GRNs) during time-course experiments with single-time-point resolution. The effectiveness of the method is evaluated on the diauxic shift from glucose to lactose in Escherichia coli. Gene regulation shifts were detected at two time points: the first corresponding to the time at which the growth of E. coli ceased and the second corresponding to the end of the experiment, when the nutrient sources (glucose and lactose) had become exhausted. According to these results, the proposed score and method can appropriately detect the time of gene regulation shifts. The method based on the proposed score provides a new tool for analyzing dynamic biological systems. Because the score value indicates the strength of gene regulation at each time point in a gene expression profile, it can potentially infer hidden GRNs from time-course experiments.

  10. Type of sport is related to injury profile: a study on cross country skiers, swimmers, long-distance runners and soccer players. A retrospective 12-month study.

    PubMed

    Ristolainen, L; Heinonen, A; Turunen, H; Mannström, H; Waller, B; Kettunen, J A; Kujala, U M

    2010-06-01

    This 12-month retrospective questionnaire compared the occurrence of sports injuries in 149 cross country skiers, 154 swimmers, 143 long-distance runners and 128 soccer players aged 15-35 years. Soccer had significantly more injuries (5.1 injuries/1000 exposure hour) than other sports (2.1-2.8, P<0.001). More runners than soccer players reported overuse injuries (59% vs 42%, P=0.005), locating typically in the foot in runners, soccer players and skiers. Swimmers reported overuse injuries in the shoulder more commonly than skiers (40% vs 1%, P<0.001), who also intensively load shoulders. Acute injuries in skiers (80%) and in swimmers (58%), and overuse injuries in skiers (61%), occurred during exercise other than own event. In soccer and running the absence time from sport because of injuries was significantly longer than in skiing and swimming. No severe permanent disabilities occurred due to injury but seven women quit sports because of injury. In conclusion, type of loading is strictly associated with the anatomical location of an overuse injury as shown by the difference in shoulder injury incidence between swimmers and cross country skiers. In some sports, a significant proportion of acute injuries occur in other than the main event.

  11. Oral administration of polymer hyaluronic acid alleviates symptoms of knee osteoarthritis: a double-blind, placebo-controlled study over a 12-month period.

    PubMed

    Tashiro, Toshiyuki; Seino, Satoshi; Sato, Toshihide; Matsuoka, Ryosuke; Masuda, Yasunobu; Fukui, Naoshi

    2012-01-01

    This study was conducted to investigate the efficacy of oral hyaluronic acid (HA) administration for osteoarthritis (OA) in knee joints. Sixty osteoarthritic subjects (Kellgren-Lawrence grade 2 or 3) were randomly assigned to the HA or placebo group. The subjects in the HA group were given 200 mg of HA once a day everyday for 12 months, while the subjects in the placebo group were given placebo. The subjects in both groups were requested to conduct quadriceps strengthening exercise everyday as part of the treatment. The subjects' symptoms were evaluated by the Japanese Knee Osteoarthritis Measure (JKOM) score. The symptoms of the subjects as determined by the JKOM score improved with time in both the HA and placebo groups. This improvement tended to be more obvious with the HA group, and this trend was more obvious with the subjects aged 70 years or less. For these relatively younger subjects, the JKOM score was significantly better than the one for the placebo group at the 2nd and 4th months after the initiation of administration. Oral administration of HA may improve the symptoms of knee OA in patients aged 70 years or younger when combined with the quadriceps strengthening exercise.

  12. Plasma arc versus halogen light-curing of adhesive-precoated orthodontic brackets: a 12-month clinical study of bond failures.

    PubMed

    Cacciafesta, Vittorio; Sfondrini, Maria Francesca; Scribante, Andrea

    2004-08-01

    The purpose of this randomized clinical trial was to evaluate the performance of adhesive-precoated brackets cured with 2 different light-curing units (conventional halogen light and plasma arc light). Thirty patients treated with fixed appliances were included in the investigation. Each patient's mouth was divided by the split-mouth design into 4 quadrants. In 15 randomly selected patients, the maxillary left and mandibular right quadrants were cured with the halogen light, and the remaining quadrants were cured with the plasma arc light. In the other 15 patients, the quadrants were inverted. A total of 600 adhesive precoated stainless steel brackets were examined: 300 were cured with a conventional halogen light for 20 seconds, and the others were cured with the plasma arc light for 5 seconds. The number, cause, and date of bracket failures were recorded for each light-curing unit over 12 months. Statistical analysis was performed with the Fisher exact test, Kaplan-Meier survival estimates, and the log-rank test. No statistically significant differences in bond failure rates were found between the adhesive-precoated brackets cured with the halogen light and those cured with the plasma arc light; neither were any significant differences in performance found with each light-curing unit between the maxillary and mandibular arches. Plasma arc lights can be considered an advantageous alternative to conventional light curing, because they enable the clinician to reduce the curing time of adhesive-precoated orthodontic brackets without significantly affecting their bond failure rate.

  13. Staff perceptions of job satisfaction and life situation before and 6 and 12 months after increased information technology support in dementia care.

    PubMed

    Engström, Maria; Ljunggren, Birgitta; Lindqvist, Ragny; Carlsson, Marianne

    2005-01-01

    We measured staff members' satisfaction with their work before and after increased information technology (IT) support in dementia care. Comparisons were also performed of perceived life satisfaction and sense of coherence. Data were collected before, and 6 and 12 months after implementation of the first part of an IT support project. Instruments used were the Satisfaction with Work Questionnaires, the Life Satisfaction Questionnaire (LSQ) and the Sense of Coherence (SOC) scale. The study was performed in a residential home for persons with dementia. The participants were 33 staff members. The IT technology included general and individualized passage alarms, sensor-activated night-time illumination, fall detectors and Internet communication. Results showed that staff members' job satisfaction and perceived quality of care improved in comparison with the control group. Personal development, workload, expectations and demands, internal motivation and documentation, as well as the total scores for "psychosocial aspects of job satisfaction" and "quality of care aspects", increased in the experimental group. There were significant interaction effects for the factors family relation, close friend relation (LSQ), the total SOC scale and the meaningfulness subscale. The study showed that IT support in dementia care increased staff members' satisfaction with their work in several ways.

  14. Development of category formation for faces differing by age in 9- to 12-month-olds: An effect of experience with infant faces.

    PubMed

    Damon, Fabrice; Quinn, Paul C; Heron-Delaney, Michelle; Lee, Kang; Pascalis, Olivier

    2016-11-01

    We examined category formation for faces differing in age in 9- and 12-month-olds, and the influence of exposure to infant faces on such ability. Infants were familiarized with adult or infant faces, and then tested with a novel exemplar from the familiarized category paired with a novel exemplar from a novel category (Experiment 1). Both age groups formed discrete categories of adult and infant faces, but exposure to infant faces in everyday life did not modulate performance. The same task was conducted with child versus infant faces (Experiment 2). Whereas 9-month-olds preferred infant faces after familiarization with child faces, but not child faces after familiarization with infant faces, 12-month-olds formed discrete categories of child and infant faces. Moreover, more exposure to infant faces correlated with higher novel category preference scores when infants were familiarized with infant faces in 12-month-olds, but not 9-month-olds. The 9-month-old asymmetry did not reflect spontaneous preference for infant over child faces (Experiment 3). These findings indicate that 9- and 12-month-olds can form age-based categories of faces. The ability of 12-month-olds to form separate child and infant categories suggests that they have a more exclusive representation of face age, one that may be influenced by prior experience with infant faces.

  15. Is overweight at 12 months associated with differences in eating behaviour or dietary intake among children selected for inappropriate bottle use?

    PubMed

    Bonuck, Karen; Avraham, Sivan Ben; Hearst, Mary; Kahn, Richard; Hyden, Christel

    2014-04-01

    Bottle feeding beyond the recommended weaning age of 12 months is a risk factor for childhood obesity. This paper describes a sample of toddlers at high risk for obesity: prolonged bottle users from a low-income multi-ethnic community. We report here baseline mealtime and feeding behaviour, 24 h dietary recall and bottle intake data for Feeding Young Children Study (FYCS) participants, by overweight (≥85% weight-for-length) status. FYCS enrolled 12-13-month-olds from urban nutrition programmes for low-income families in the United States who were consuming ≥2 bottles per day. Our sample was predominately Hispanic (62%), 44% of mothers were born outside of the United States and 48% were male. Overall, 35% were overweight. Overweight status was not associated with mealtime/feeding behaviours, bottle use or dietary intake. Most (90%) children ate enough, were easily satisfied and did not exhibit negative (e.g. crying, screaming) mealtime behaviours, per parent report. The sample's median consumption of 4 bottles per day accounted for 50% of their total calories; each bottle averaged 7 ounces and contained 120 calories. Mean daily energy intake, 1098.3 kcal day(-1) (standard deviation = 346.1), did not differ by weight status, nor did intake of fat, saturated fat, protein or carbohydrates. Whole milk intake, primarily consumed via bottles, did not differ by weight status. Thus, overweight 12-13-month-olds in FYCS were remarkably similar to their non-overweight peers in terms of several obesity risk factors. Findings lend support to the set-point theory and prior work finding that weight and intake patterns in the first year of life alter subsequent obesity risk.

  16. Effects of 12-month, 2000IU/day vitamin D supplementation on treatment naïve and vitamin D deficient Saudi type 2 diabetic patients

    PubMed Central

    Al-Shahwan, May A.; Al-Othman, Abdulaziz M.; Al-Daghri, Nasser M.; Sabico, Shaun B.

    2015-01-01

    Objectives: To determine whether 12-month, 2000IU/day vitamin D supplementation cardiometabolically improves treatment naïve type 2 diabetes mellitus (T2DM) Saudi patients with vitamin D deficiency. Methods: This 12-month interventional study was conducted at primary health centers in 5 different residential areas in Riyadh, Saudi Arabia between January 2013 and January 2014. Forty-five Saudi T2DM patients were enrolled. Baseline anthropometrics, glycemic, and lipid profiles were measured and repeated after 6 and 12 months. All subjects were provided with 2000IU vitamin D supplements for one year. Results: Vitamin D deficiency at baseline was 46.7%, 31.8% after 6 months, and 35.6% after 12 months, indicating an overall improvement in the vitamin D status in the entire cohort. Insulin and homeostatic model assessment-insulin resistance (HOMA-IR) after 12 months were significantly lower than a 6 months (p<0.05), but comparable to baseline values. Mean levels of triglycerides increased overtime from baseline (1.9±0.01 mmol/l) to 12 months (2.1±0.2 mmol). This modest increase in serum triglycerides was parallel to the insignificant decrease in circulating high-density lipoprotein -cholesterol levels. Conclusion: Twelve-month vitamin D supplementation of 2000IU per day in a cohort of treatment naïve Saudi patients with T2DM resulted in improvement of several cardiometabolic parameters including systolic blood pressure, insulin, and HOMA-IR. Further studies that include a placebo group are suggested to reinforce findings. PMID:26620985

  17. Investigation of the infertile couple: a basic fertility work-up performed within 12 months of trying to conceive generates costs and complications for no particular benefit.

    PubMed

    van der Steeg, Jan W; Steures, Pieternel; Hompes, Peter G A; Eijkemans, Marinus J C; van der Veen, Fulco; Mol, Ben W J

    2005-10-01

    The current approach of the basic fertility work-up has been questioned recently in this journal. Based on new data on human fecundity, the authors advocated starting the fertility work-up after just 6 months of trying to conceive instead of the usual 12 months. In women younger than 39 years and with a regular cycle, there are several arguments why the basic fertility work-up should not be done earlier than after 12 months of child wish. Firstly, 50% of couples who have tried to conceive for 6 months without success will conceive in the next 6 months without any treatment. Secondly, the prevalence of fertility diseases is lower in couples who have been trying to conceive for 6 months as compared with those who have been trying for 12 months. Performance of a fertility work-up at this stage will lead to an increase in false-positive diagnoses compared with performing them at 12 months of subfertility. Thirdly, fertility treatment will have fewer additional effects in couples with good spontaneous conception prospects (6-12 months child wish), compared with subfertile couples who have poor prospects. At present, none of the available fertility treatments have success rates comparable with no intervention in these women, and postponement of treatment in such couples will prevent complications such as ovarian hyperstimulation syndrome and multiple pregnancies. We argue that the fertility work-up should not be offered to couples with a duration of child wish of <12 months, except for women with ovulation disorders and women of 39 years and older.

  18. Catheter-based renal denervation for resistant hypertension: 12-month results of the EnligHTN I first-in-human study using a multielectrode ablation system.

    PubMed

    Papademetriou, Vasilios; Tsioufis, Costas P; Sinhal, Ajay; Chew, Derek P; Meredith, Ian T; Malaiapan, Yuvi; Worthley, Matthew I; Worthley, Stephen G

    2014-09-01

    Renal denervation has emerged as a novel approach for the treatment of patients with drug-resistant hypertension. To date, only limited data have been published using multielectrode radiofrequency ablation systems. In this article, we present the 12-month data of EnligHTN I, a first-in-human study using a multielectrode ablation catheter. EnligHTN I enrolled 46 patients (average age, 60±10 years; on average 4.7±1.0 medications) with drug-resistant hypertension. Eligible patients were on ≥3 antihypertensive medications and had a systolic blood pressure (BP) ≥160 mm Hg (≥150 mm Hg for diabetics). Bilateral renal artery ablation was performed using a percutaneous femoral approach and standardized techniques. The average baseline office BP was 176/96 mm Hg, average 24-hour ambulatory BP was 150/83 mm Hg, and average home BP was 158/90 mm Hg. The average reductions (mm Hg) at 1, 3, 6, and 12 months were as follows: office: -28/-10, -27/-10, -26/-10, and -27/-11 mm Hg (P<0.001 for all); 24-hour ambulatory: -10/-5, -10/-5, -10/-6 (P<0.001 for all), and -7/-4 for 12 months (P<0.0094). Reductions in home measurements (based on 2-week average) were -9/-4, -8/-5,-10/-7, and -11/-6 mm Hg (P<0.001 at 12 months). At 12 months, there were no signals of worsening renal function and no new serious or life-threatening adverse events. One patient with baseline nonocclusive renal artery stenosis progressed to 75% diameter stenosis, requiring renal artery stenting. The 12-month data continue to demonstrate safety and efficacy of the EnligHTN ablation system in patients with drug-resistant hypertension. Home BP measurements parallel measurements obtained with 24-hour ambulatory monitoring.

  19. Effects of Duchenne muscular dystrophy on muscle stiffness and response to electrically-induced muscle contraction: A 12-month follow-up.

    PubMed

    Lacourpaille, Lilian; Gross, Raphaël; Hug, François; Guével, Arnaud; Péréon, Yann; Magot, Armelle; Hogrel, Jean-Yves; Nordez, Antoine

    2017-03-01

    The present study aimed to assess the ability of muscle stiffness (shear modulus) and response to electrically-induced muscle contraction to detect changes in muscle properties over a 12-month period in children with Duchenne muscular dystrophy (DMD). Ten children with DMD and nine age-matched healthy male controls participated in two experimental sessions (T0 and T+12months) separated by 12.4 ± 0.9 months. Two contractions of the biceps brachii were electrically-induced during which an ultrasound probe was placed over the muscle. The resting shear modulus was measured using elastography from six muscles. Evoked maximal torque was increased at T+12months in controls (+11.2 ± 7.6%, P <0.001) but was not modified in children with DMD (P = 0.222). Electromechanical delay (+12.9 ± 11.3%, P <0.001) and its force transmission component (+10.1 ± 21.6%, P = 0.003) were significantly longer at T+12months than T0 for children with DMD. The results revealed an increase in muscle stiffness at T+12months in children with DMD for tibialis anterior (+75.1 ± 93.5%, P= 0.043), gastrocnemius medialis (+144.8 ± 180.6%, P= 0.050) and triceps brachii (+35.5 ± 32.2%, P= 0.005). This 12-month follow-up study demonstrates that electromechanical delay and elastography may help detect subtle muscle impairments in patients with DMD. These sensitive outcomes may improve the follow-up of innovative therapeutic interventions within the field of DMD.

  20. Kick-Off, Half-Time, and Over-Time: Flexible Scheduling Scores Points

    ERIC Educational Resources Information Center

    McLeod, Jade

    2005-01-01

    When faculty members at Furman Middle School in Sumter, South Carolina, expressed concern about the lack of time in each day to provide the interventions, remediation, and enrichment the students needed to be prepared for state testing, their principal devised a creative flexible schedule to meet student needs. These include: (1) a morning…

  1. Knee Point Search Using Cascading Top-k Sorting with Minimized Time Complexity

    PubMed Central

    Tseng, Shian-Shyong

    2013-01-01

    Anomaly detection systems and many other applications are frequently confronted with the problem of finding the largest knee point in the sorted curve for a set of unsorted points. This paper proposes an efficient knee point search algorithm with minimized time complexity using the cascading top-k sorting when a priori probability distribution of the knee point is known. First, a top-k sort algorithm is proposed based on a quicksort variation. We divide the knee point search problem into multiple steps. And in each step an optimization problem of the selection number k is solved, where the objective function is defined as the expected time cost. Because the expected time cost in one step is dependent on that of the afterwards steps, we simplify the optimization problem by minimizing the maximum expected time cost. The posterior probability of the largest knee point distribution and the other parameters are updated before solving the optimization problem in each step. An example of source detection of DNS DoS flooding attacks is provided to illustrate the applications of the proposed algorithm. PMID:24068888

  2. A Well-Clear Volume Based on Time to Entry Point

    NASA Technical Reports Server (NTRS)

    Narkawicz, Anthony J.; Munoz, Cesar A.; Upchurch, Jason M.; Chamberlain, James P.; Consiglio, Maria C.

    2014-01-01

    A well-clear volume is a key component of NASA's Separation Assurance concept for the integration of UAS in the NAS. This paper proposes a mathematical definition of the well-clear volume that uses, in addition to distance thresholds, a time threshold based on time to entry point (TEP). The mathematical model that results from this definition is more conservative than other candidate definitions of the wellclear volume that are based on range over closure rate and time to closest point of approach.

  3. Anomalous parity-time-symmetry transition away from an exceptional point

    NASA Astrophysics Data System (ADS)

    Ge, Li

    2016-07-01

    Parity-time (PT ) symmetric systems have two distinguished phases, e.g., one with real-energy eigenvalues and the other with complex-conjugate eigenvalues. To enter one phase from the other, it is believed that the system must pass through an exceptional point, which is a non-Hermitian degenerate point with coalesced eigenvalues and eigenvectors. Here we reveal an anomalous PT transition that takes place away from an exceptional point in a nonlinear system: as the nonlinearity increases, the original linear system evolves along two distinct PT -symmetric trajectories, each of which can have an exceptional point. However, the two trajectories collide and vanish away from these exceptional points, after which the system is left with a PT -broken phase. We first illustrate this phenomenon using a coupled-mode theory and then exemplify it using paraxial wave propagation in a transverse periodic potential.

  4. Selecting the most appropriate time points to profile in high-throughput studies

    PubMed Central

    Kleyman, Michael; Sefer, Emre; Nicola, Teodora; Espinoza, Celia; Chhabra, Divya; Hagood, James S; Kaminski, Naftali; Ambalavanan, Namasivayam; Bar-Joseph, Ziv

    2017-01-01

    Biological systems are increasingly being studied by high throughput profiling of molecular data over time. Determining the set of time points to sample in studies that profile several different types of molecular data is still challenging. Here we present the Time Point Selection (TPS) method that solves this combinatorial problem in a principled and practical way. TPS utilizes expression data from a small set of genes sampled at a high rate. As we show by applying TPS to study mouse lung development, the points selected by TPS can be used to reconstruct an accurate representation for the expression values of the non selected points. Further, even though the selection is only based on gene expression, these points are also appropriate for representing a much larger set of protein, miRNA and DNA methylation changes over time. TPS can thus serve as a key design strategy for high throughput time series experiments. Supporting Website: www.sb.cs.cmu.edu/TPS DOI: http://dx.doi.org/10.7554/eLife.18541.001 PMID:28124972

  5. Mycobacterium ulcerans Ecological Dynamics and Its Association with Freshwater Ecosystems and Aquatic Communities: Results from a 12-Month Environmental Survey in Cameroon

    PubMed Central

    Garchitorena, Andrés; Roche, Benjamin; Kamgang, Roger; Ossomba, Joachim; Babonneau, Jérémie; Landier, Jordi; Fontanet, Arnaud; Flahault, Antoine

    2014-01-01

    Background Mycobacterium ulcerans (MU) is the agent responsible for Buruli Ulcer (BU), an emerging skin disease with dramatic socioeconomic and health outcomes, especially in rural settings. BU emergence and distribution is linked to aquatic ecosystems in tropical and subtropical countries, especially to swampy and flooded areas. Aquatic animal organisms are likely to play a role either as host reservoirs or vectors of the bacilli. However, information on MU ecological dynamics, both in space and time, is dramatically lacking. As a result, the ecology of the disease agent, and consequently its mode of transmission, remains largely unknown, which jeopardizes public health attempts for its control. The objective of this study was to gain insight on MU environmental distribution and colonization of aquatic organisms through time. Methodology/Principal Findings Longitudinal sampling of 32 communities of aquatic macro-invertebrates and vertebrates was conducted from different environments in two BU endemic regions in Cameroon during 12 months. As a result, 238,496 individuals were classified and MU presence was assessed by qPCR in 3,084 sample-pools containing these aquatic organisms. Our study showed a broad distribution of MU in all ecosystems and taxonomic groups, with important regional differences in its occurrence. Colonization dynamics fluctuated along the year, with the highest peaks in August and October. The large variations observed in the colonization dynamics of different taxonomic groups and aquatic ecosystems suggest that the trends shown here are the result of complex ecological processes that need further investigation. Conclusion/Perspectives This is the largest field study on MU ecology to date, providing the first detailed description of its spatio-temporal dynamics in different aquatic ecosystems within BU endemic regions. We argue that coupling this data with fine-scale epidemiological data through statistical and mathematical models will provide a

  6. Technology-assisted balance and gait training reduces falls in patients with Parkinson's disease: a randomized controlled trial with 12-month follow-up.

    PubMed

    Shen, Xia; Mak, Margaret K Y

    2015-02-01

    Objective. To examine the effects of technology-assisted balance and gait training on reducing falls in patients with Parkinson's disease (PD). Methods. Eligible subjects were randomly allocated to an experimental group given technology-assisted balance and gait training (BAL, n = 26) and an active control group undertaking strengthening exercises (CON, n = 25). The training in each group lasted for 3 months. The number of fallers and fall rate were used as primary outcomes, and single-leg-stance-time, latency of postural response to perturbation, self-selected gait velocity, and stride length as secondary outcomes. Fall incidence was recorded over 15 months after the baseline assessment (Pre). Other tests were performed at Pre, after 3-month intervention (Post(3m)), at 3 months (Post(6m)), and 12 months (Post(15m)) after treatment completion. Results. Forty-five subjects who completed the 3-month training were included in the data analysis. There were fewer fallers in the BAL than in the CON group at Post(3m), Post(6m), and Post(15m) (P < .05). In addition, the BAL group had lower fall rate than the CON group at Post(3m) and Post(6m) (incidence rate ratio: 0.111-0.188, P < .05), and marginally so at Post(15m) (incidence rate ratio: 0.407, P = .057). Compared with the CON subjects, the BAL subjects demonstrated greater reduction in the postural response latency and increase in the stride length against baseline at each assessment interval (P < .05), and marginally more increases of single-leg-stance-time at Post(3m) (P = .064), Post(6m) (P = .041) and Post(15m) (P = .087). Conclusions. Our positive findings provide evidence for the clinical use of technology-assisted balance and gait training in reducing falls in people with PD.

  7. Robust Optimization of Fixed Points of Nonlinear Discrete Time Systems with Uncertain Parameters

    NASA Astrophysics Data System (ADS)

    Kastsian, Darya; Monnigmann, Martin

    2010-01-01

    This contribution extends the normal vector method for the optimization of parametrically uncertain dynamical systems to a general class of nonlinear discrete time systems. Essentially, normal vectors are used to state constraints on dynamical properties of fixed points in the optimization of discrete time dynamical systems. In a typical application of the method, a technical dynamical system is optimized with respect to an economic profit function, while the normal vector constraints are used to guarantee the stability of the optimal fixed point. We derive normal vector systems for flip, fold, and Neimark-Sacker bifurcation points, because these bifurcation points constitute the stability boundary of a large class of discrete time systems. In addition, we derive normal vector systems for a related type of critical point that can be used to ensure a user-specified disturbance rejection rate in the optimization of parametrically uncertain systems. We illustrate the method by applying it to the optimization of a discrete time supply chain model and a discretized fermentation process model.

  8. Face-Scanning Behavior to Silently-Talking Faces in 12-Month-Old Infants: The Impact of Pre-Exposed Auditory Speech

    ERIC Educational Resources Information Center

    Kubicek, Claudia; de Boisferon, Anne Hillairet; Dupierrix, Eve; Loevenbruck, Helene; Gervain, Judit; Schwarzer, Gudrun

    2013-01-01

    The present eye-tracking study aimed to investigate the impact of auditory speech information on 12-month-olds' gaze behavior to silently-talking faces. We examined German infants' face-scanning behavior to side-by-side presentation of a bilingual speaker's face silently speaking German utterances on one side and French on the other side, before…

  9. Is Chronic Otitis Media Associated with Differences in Parental Input at 12 Months of Age? An Analysis of Joint Attention and Directives.

    ERIC Educational Resources Information Center

    Yont, Kristine M.; Snow, Catherine E.; Vernon-Feagans, Lynne

    2003-01-01

    Argues that parental input is an important factor often neglected in research that may mediate language outcomes. Investigated how parents interact with their 12-month-old children, who suffer from otitis media status. Results indicate that parents of chronically affected children direct attention more often and engage in fewer joint attentional…

  10. Comparison of bone mineral loss by combined androgen block agonist versus GnRH in patients with prostate cancer: A 12 month-prospective observational study.

    PubMed

    Kim, Sung Han; Joung, Jae Young; Kim, Sohee; Rha, Koon Ho; Kim, Hyeong Gon; Kwak, Cheol; Lee, Ji Youl; Jeon, Seong Soo; Hong, Sung Kyu; Jeong, Hyeon; Jo, Moon Ki; You, Dalsan; Jeong, In Gab; Hong, Jun Hyuk; Kim, Choung-Soo

    2017-03-06

    The multi-centre, prospective, observational study was designed to examine the efficacy of continuous combined androgen block (CAB) vs. GnRH agonist monotherapy in terms of bone mineral density (BMD) change during 12 months post-androgen deprivation therapy (ADT) in Asian prostate cancer patients. Multiple regression analysis and estimated the 10-year probability of major fractures among the patients with Fracture Risk Assessment Tool were conducted to investigate the underlying factors affecting BMD. Paired t-test to evaluate the change of BMD from baseline to 12 month, and two sample t-test to examine the difference of BMD changes were used between two groups. BMD significantly decreased in both the CAB and GnRH groups, with no group wise differences. The proportion of osteopenia or osteoporosis was slightly increased after the 12-month post-ADT. Ten-year probability of hip fracture and major osteoporotic fracture was approximately 3% and 5%, respectively. In conclusion, a significant decrease of BMD by 12-month ADT was observed without any differences between the two groups, whereas ADT-related BMD loss did not induce detrimental effects on bone health in terms of increased bone fracture risk. This was the first prospective study on BMD changes as a predictor of fracture during ADT in an Asian population.

  11. Description of the Motor Development of 3-12 Month Old Infants with Down Syndrome: The Influence of the Postural Body Position

    ERIC Educational Resources Information Center

    Tudella, Eloisa; Pereira, Karina; Basso, Renata Pedrolongo; Savelsbergh, Geert J. P.

    2011-01-01

    The purpose of the present study was to describe the rate of motor development in infants with Down syndrome in the age range of 3-12 months and identify the difficulties both in performance and acquiring motor skills in prone, supine, sitting and standing positions. Nineteen infants with Down syndrome and 25 healthy full term typical infants were…

  12. A 12-Month Prospective, Observational Study of Treatment Regimen and Quality of Life Associated with ADHD in Central and Eastern Europe and Eastern Asia

    ERIC Educational Resources Information Center

    Goetz, Michal; Yeh, Chin-Bin; Ondrejka, Igor; Akay, Aynur; Herczeg, Ilona; Dobrescu, Iuliana; Kim, Boong Nyun; Jin, Xingming; Riley, Anne W.; Martenyi, Ferenc; Harrison, Gavan; Treuer, Tamas

    2012-01-01

    Objectives: This prospective, observational, non-randomized study aimed to describe the relationship between treatment regimen prescribed and the quality of life (QoL) of ADHD patients in countries of Central and Eastern Europe (CEE) and Eastern Asia over 12 months. Methods: 977 Male and female patients aged 6-17 years seeking treatment for…

  13. Comparison of bone mineral loss by combined androgen block agonist versus GnRH in patients with prostate cancer: A 12 month-prospective observational study

    PubMed Central

    Kim, Sung Han; Joung, Jae Young; Kim, Sohee; Rha, Koon Ho; Kim, Hyeong Gon; Kwak, Cheol; Lee, Ji Youl; Jeon, Seong Soo; Hong, Sung Kyu; Jeong, Hyeon; Jo, Moon Ki; You, Dalsan; Jeong, In Gab; Hong, Jun Hyuk; Kim, Choung-Soo

    2017-01-01

    The multi-centre, prospective, observational study was designed to examine the efficacy of continuous combined androgen block (CAB) vs. GnRH agonist monotherapy in terms of bone mineral density (BMD) change during 12 months post-androgen deprivation therapy (ADT) in Asian prostate cancer patients. Multiple regression analysis and estimated the 10-year probability of major fractures among the patients with Fracture Risk Assessment Tool were conducted to investigate the underlying factors affecting BMD. Paired t-test to evaluate the change of BMD from baseline to 12 month, and two sample t-test to examine the difference of BMD changes were used between two groups. BMD significantly decreased in both the CAB and GnRH groups, with no group wise differences. The proportion of osteopenia or osteoporosis was slightly increased after the 12-month post-ADT. Ten-year probability of hip fracture and major osteoporotic fracture was approximately 3% and 5%, respectively. In conclusion, a significant decrease of BMD by 12-month ADT was observed without any differences between the two groups, whereas ADT-related BMD loss did not induce detrimental effects on bone health in terms of increased bone fracture risk. This was the first prospective study on BMD changes as a predictor of fracture during ADT in an Asian population. PMID:28262724

  14. The Effects of Irlen Colored Lenses on Students' Specific Reading Skills and Their Perception of Ability: A 12-Month Validity Study.

    ERIC Educational Resources Information Center

    Robinson, Gregory L. W.; Conway, Robert N. F.

    1990-01-01

    The study examined the effectiveness of the use of nonoptical tinted (Irlen) lenses with 44 children (ages 9-16) with reading disabilities. Evaluation after 6 and 12 months indicated a significant improvement in attitude to school and to basic academic skills. Reading comprehension and accuracy, but not rate, were also significantly improved.…

  15. On the Relationship between Solar Wind Speed, Earthward-Directed Coronal Mass Ejections, Geomagnetic Activity, and the Sunspot Cycle Using 12-Month Moving Averages

    NASA Technical Reports Server (NTRS)

    Wilson, Robert M.; Hathaway, David H.

    2008-01-01

    For 1996 .2006 (cycle 23), 12-month moving averages of the aa geomagnetic index strongly correlate (r = 0.92) with 12-month moving averages of solar wind speed, and 12-month moving averages of the number of coronal mass ejections (CMEs) (halo and partial halo events) strongly correlate (r = 0.87) with 12-month moving averages of sunspot number. In particular, the minimum (15.8, September/October 1997) and maximum (38.0, August 2003) values of the aa geomagnetic index occur simultaneously with the minimum (376 km/s) and maximum (547 km/s) solar wind speeds, both being strongly correlated with the following recurrent component (due to high-speed streams). The large peak of aa geomagnetic activity in cycle 23, the largest on record, spans the interval late 2002 to mid 2004 and is associated with a decreased number of halo and partial halo CMEs, whereas the smaller secondary peak of early 2005 seems to be associated with a slight rebound in the number of halo and partial halo CMEs. Based on the observed aaM during the declining portion of cycle 23, RM for cycle 24 is predicted to be larger than average, being about 168+/-60 (the 90% prediction interval), whereas based on the expected aam for cycle 24 (greater than or equal to 14.6), RM for cycle 24 should measure greater than or equal to 118+/-30, yielding an overlap of about 128+/-20.

  16. Temperament and Behaviour of Infants Aged 4-12 Months on Admission to a Private Mother-Baby Unit and at 1- and 6-Month Follow-Up

    ERIC Educational Resources Information Center

    Fisher, Jane; Rowe, Heather; Feekery, Colin

    2004-01-01

    While infant behaviour is influenced by maternal care, infant crying and dysregulated sleep can reciprocally affect maternal mood. The temperament and behaviour of two 4-12-months-old infant cohorts admitted with their mothers to a residential parenting program were examined using behaviour charts and the Short Infant Temperament Questionnaire…

  17. A proxy method for real-time 3-DOF haptic rendering of streaming point cloud data.

    PubMed

    Rydén, Fredrik; Chizeck, Howard Jay

    2013-01-01

    This paper presents a new haptic rendering method for streaming point cloud data. It provides haptic rendering of moving physical objects using data obtained from RGB-D cameras. Thus, real-time haptic interaction with moving objects can be achieved using noncontact sensors. This method extends "virtual coupling"-based proxy methods in a way that does not require preprocessing of points and allows for spatial point cloud discontinuities. The key ideas of the algorithm are iterative motion of the proxy with respect to the points, and the use of a variable proxy step size that results in better accuracy for short proxy movements and faster convergence for longer movements. This method provides highly accurate haptic interaction for geometries in which the proxy can physically fit. Another advantage is a significant reduction in the risk of "pop through" during haptic interaction with dynamic point clouds, even in the presence of noise. This haptic rendering method is computationally efficient; it can run in real time on available personal computers without the need for downsampling of point clouds from commercially available depth cameras.

  18. Survival analysis of banding and bonding molar tubes in adult patients over a 12-month period: a split-mouth randomized clinical trial.

    PubMed

    Oeiras, Valéria Jacques; Silva, Valéria Assis Almeida E; Azevedo, Leidiana Aguiar; Lobato, Vanessa Soares; Normando, David

    2016-12-22

    This split-mouth randomized clinical trial aimed to compare the survival rate of bonding and banding molar tubes in adult orthodontic patients. Eligibility criteria included adults (aged >18 years), no active caries, restorations, or fractures in the upper and lower molars. The main outcome was any type of first-time failure in molar tubes. A computer-generated randomization scheme was used in a 1:1 ratio. The survival rate was estimated for 32 adult patients, in whom a tube was bonded to a molar tooth using composite resin on one side and a band was cemented with glass ionomer onto the same tooth in the contralateral arch. A total of 59 banded and 59 bonded molars were followed up for 12 months. Blinding was not applicable. Survival analysis including Cox regression was used at p < 0.05. The survival rate of bonded molars was not statistically different from that of banded molars (log-rank test, p = 0.97). Hazard ratio (HR) was 0.72 (95%CI, 0.38-1.31). Bonded upper molars yielded a survival rate of 81.25% (26 out of 32) compared to 71.87% (23 out of 32) for banded upper molars. The survival rate was 66.66% (18 out of 27) for banded lower molars and 59.25% for bonded lower molars (16 out of 27). The HR for lower vs. upper arch was 2.16 (95%CI, 1.18-3.98). No serious problem was observed other than gingivitis associated with plaque accumulation. In contrast to previous studies in young patients, in adults, bonding orthodontic tubes to molars is similar to molar banding. However, both procedures had a high failure rate in the lower arch.

  19. Mother’s Emotional and Posttraumatic Reactions after a Preterm Birth: The Mother-Infant Interaction Is at Stake 12 Months after Birth

    PubMed Central

    Petit, Anne-Cécile; Eutrope, Julien; Thierry, Aurore; Bednarek, Nathalie; Aupetit, Laurence; Saad, Stéphanie; Vulliez, Lauriane; Sibertin-Blanc, Daniel; Nezelof, Sylvie; Rolland, Anne-Catherine

    2016-01-01

    Objectives Very preterm infants are known to be at risk of developmental disabilities and behavioural disorders. This condition is supposed to alter mother-infant interactions. Here we hypothesize that the parental coping with the very preterm birth may greatly influence mother-infant interactions. Methods 100 dyads were included in 3 university hospitals in France. Preterm babies at higher risk of neurodevelopmental sequelae (PRI>10) were excluded to target the maternal determinants of mother-infant interaction. We report the follow-up of this cohort during 1 year after very preterm birth, with regular assessment of infant somatic state, mother psychological state and the assessment of mother-infant interaction at 12 months by validated scales (mPPQ, HADS, EPDS, PRI, DDST and PIPE). Results We show that the intensity of post-traumatic reaction of the mother 6 months after birth is negatively correlated with the quality of mother-infant interaction at 12 months. Moreover, the anxious and depressive symptoms of the mother 6 and 12 months after birth are also correlated with the quality of mother-infant interaction at 12 months. By contrast, this interaction is not influenced by the initial affective state of the mother in the 2 weeks following birth. In this particular population of infants at low risk of sequelae, we also show that the quality of mother-infant interaction is not correlated with the assessment of the infant in the neonatal period but is correlated with the fine motor skills of the baby 12 months after birth. Conclusions This study suggests that mothers’ psychological condition has to be monitored during the first year of very preterm infants’ follow-up. It also suggests that parental interventions have to be proposed when a post-traumatic, anxious or depressive reaction is suspected. PMID:27022953

  20. The effect of a micronutrient-fortified complementary food on micronutrient status, growth and development of 6- to 12-month-old disadvantaged urban South African infants.

    PubMed

    Oelofse, A; Van Raaij, J M A; Benade, A J S; Dhansay, M A; Tolboom, J J M; Hautvast, J G A J

    2003-09-01

    The study was conducted to look at the effectiveness of a multimicronutrient-fortified complementary food on the micronutrient status, linear growth and psychomotor development of 6- to 12-month-old infants from a black urban disadvantaged community in the Western Cape, South Africa. The study was designed as an intervention study. In both the experimental and control groups, serum retinol concentration showed a decline over the intervention period of 6 months. The decline was less pronounced in the experimental group. This resulted in a significantly (P<005) higher serum retinol concentration at 12 months in the experimental group (26.8+/-5.8 microg/dl) compared with the control group (21.4+/-5 microg/dl). Serum iron concentration also declined over the intervention period. The decline was less pronounced in the experimental group. No difference was observed in haemoglobin levels between the groups at 12 months. Serum zinc concentration did not differ significantly between the two groups at follow up. Weight gain over the 6 months period did not differ significantly between the experimental (2.1+/-0.9 kg) and control groups (2.1+/-1.2 kg). There was no difference in linear growth between the experimental (10.0+/-1.5 cm) and control group (10.1+/-2.1 cm) at the end of the follow-up period. Weight and length at 6 months significantly predicted weight and length at 12 months. No difference was observed in psychomotor developmental scores between the two groups after 6 months of intervention. Introducing a multimicronutrient-fortified complementary food into the diet of 6- to 12-month-old infants seemed to have an arresting effect on declining serum retinol and iron concentration in the experimental group. No benefit was observed in serum zinc concentration, linear growth and psychomotor development.

  1. Cognitive status is a determinant of health resource utilization among individuals with a history of falls: a 12-month prospective cohort study

    PubMed Central

    Davis, Jennifer C.; Dian, Larry; Khan, Karim M.; Bryan, Stirling; Marra, Carlo A.; Hsu, Chun Liang; Jacova, Patrizio; Chiu, Bryan K; Liu-Ambrose, Teresa

    2016-01-01

    Introduction Although falls are costly there are no prospective data examining factors among fallers that drive health care resource utilization. We identified key determinants of health resource utilization (HRU) at 6 and 12 months among older adults with a history of falls. Specifically, with the increasing recognition that cognitive impairment is associated with increased falls risk, we investigated cognition as a potential driver of health resource utilisation. Methods This 12-month prospective cohort study at the Vancouver Falls Prevention Clinic (n=319) included participants with a history of at least one fall in the previous 12 months. Based on their cognitive status, participants were divided into two groups: 1) No Mild Cognitive Impairment (MCI) and 2) MCI. We constructed two linear regression models with HRU at 6 and 12 months as the dependent variables for each model, respectively. Predictors relating to mobility, global cognition, executive functions and cognitive status (MCI versus no MCI) were examined. Age, sex, comorbidities, depression status and activities of daily living were included regardless of statistical significance. Results Global cognition, comorbidities, working memory and cognitive status (MCI versus no MCI ascertained using the MoCA) were significant determinants of total HRU at 6 months. The number of medical comorbidities and global cognition were significant determinants of total HRU at 12 months. Conclusion MCI status was a determinant of HRU at 6 months among older adults with a history of falls. As such, efforts to minimize health care resource use related to falls, it is important to tailor future interventions to be effective for people with MCI who fall. Trial Registration ClinicalTrials.gov Identifier: NCT01022866 PMID:26449355

  2. Two-point time-series measurementsof hydroxyl concentration in a turbulent nonpremixed flame.

    PubMed

    Zhang, Jiayao; King, Galen B; Laurendeau, Normand M; Renfro, Michael W

    2007-08-10

    Quantitative two-point hydroxyl time-series measurements have been performed in a turbulent nonpremixed flame by using two-point picosecond time-resolved laser-induced fluorescence. The current diagnostic system has been improved from its preliminary version to address optical aberrations and fluorescence lifetime fluctuations. In particular, with a newly designed collection system, the aberration-limited blur spot is reduced from 6 mm to 180 microm. Additional photon-counting channels enable the recovery of absolute OH concentrations through a triple-bin integration method. The present research represents what we believe to be the first application of this two-point technique to turbulent flames. Two independent schemes have been applied to remove uncorrelated noise in the derived two-point statistics. We show that optical aberrations can have a significant effect on space-time correlations. However, the sampling rate and fluctuations in the fluorescence lifetime barely affect the spatial autocorrelation function and thus the integral length scale. Such length scales for hydroxyl are found to rise linearly with increasing axial distance at peak [OH] locations. Along the jet centerline, the integral length scale varies slightly below the flame tip but increases rapidly above the flame tip. In addition, the OH length scale demonstrates the same trend as the OH time scale along the jet centerline, but the opposite trend at peak [OH] locations.

  3. Effects of repetitive loading on the growth-induced changes in bone mass and cortical bone geometry: a 12-month study in pre/peri- and postmenarcheal tennis players.

    PubMed

    Ducher, Gaele; Bass, Shona L; Saxon, Leanne; Daly, Robin M

    2011-06-01

    Pre- and early puberty may be the most opportune time to strengthen the female skeleton, but there are few longitudinal data to support this claim. Competitive female premenarcheal (pre/peri, n = 13) and postmenarcheal (post, n = 32) tennis players aged 10 to 17 years were followed over 12 months. The osteogenic response to loading was studied by comparing the playing and nonplaying humeri for dual-energy X-ray absorptiometry (DXA) bone mineral content (BMC) and magnetic resonance imaging (MRI) total bone area (ToA), medullary area (MedA), cortical area (CoA), and muscle area (MCSA) at the humerus. Over 12 months, growth-induced gains (nonplaying arm) in BMC, ToA, and CoA were greater in pre/peri (10% to 19%, p < .001) than in post (3% to 5%, p < .05 to .001) players. At baseline, BMC, ToA, CoA, and MCSA were 8% to 18% greater in the playing versus nonplaying arms in pre/peri and post players (all p < .001); MedA was smaller in the playing versus nonplaying arms in post only players (p < .05). When comparing the annual gains in the playing arm relative to changes in the nonplaying arm, the increases in ToA and CoA were greater in pre/peri than post players (all p < .05). The smaller the side-to-side differences in BMC and CoA at baseline, the larger the exercise benefits at 12 months (r = -0.39 to -0.48, p < .01). The exercise-induced change in MCSA was predictive of the exercise benefits in BMC in pre/peri players only (p < .05). In conclusion, both pre/peri- and postmenarcheal tennis players showed significant exercise-induced skeletal benefits within a year, with greater benefits in cortical bone geometry in pre/perimenarcheal girls.

  4. Portable Dew Point Mass Spectrometry System for Real-Time Gas and Moisture Analysis

    NASA Technical Reports Server (NTRS)

    Arkin, C.; Gillespie, Stacey; Ratzel, Christopher

    2010-01-01

    A portable instrument incorporates both mass spectrometry and dew point measurement to provide real-time, quantitative gas measurements of helium, nitrogen, oxygen, argon, and carbon dioxide, along with real-time, quantitative moisture analysis. The Portable Dew Point Mass Spectrometry (PDP-MS) system comprises a single quadrupole mass spectrometer and a high vacuum system consisting of a turbopump and a diaphragm-backing pump. A capacitive membrane dew point sensor was placed upstream of the MS, but still within the pressure-flow control pneumatic region. Pressure-flow control was achieved with an upstream precision metering valve, a capacitance diaphragm gauge, and a downstream mass flow controller. User configurable LabVIEW software was developed to provide real-time concentration data for the MS, dew point monitor, and sample delivery system pressure control, pressure and flow monitoring, and recording. The system has been designed to include in situ, NIST-traceable calibration. Certain sample tubing retains sufficient water that even if the sample is dry, the sample tube will desorb water to an amount resulting in moisture concentration errors up to 500 ppm for as long as 10 minutes. It was determined that Bev-A-Line IV was the best sample line to use. As a result of this issue, it is prudent to add a high-level humidity sensor to PDP-MS so such events can be prevented in the future.

  5. Time-point and dosage of gene inactivation determine the tumor spectrum in conditional Ptch knockouts.

    PubMed

    Zibat, Arne; Uhmann, Anja; Nitzki, Frauke; Wijgerde, Mark; Frommhold, Anke; Heller, Tanja; Armstrong, Victor; Wojnowski, Leszek; Quintanilla-Martinez, Leticia; Reifenberger, Julia; Schulz-Schaeffer, Walter; Hahn, Heidi

    2009-06-01

    Mutations in Patched (PTCH) have been associated with tumors characteristic both for children [medulloblastoma (MB) and rhabdomyosarcoma (RMS)] and for elderly [basal cell carcinoma (BCC)]. The determinants of the variability in tumor onset and histology are unknown. We investigated the effects of the time-point and dosage of Ptch inactivation on tumor spectrum using conditional Ptch-knockout mice. Ptch heterozygosity induced prenatally resulted in the formation of RMS, which was accompanied by the silencing of the remaining wild-type Ptch allele. In contrast, RMS was observed neither after mono- nor biallelic postnatal deletion of Ptch. Postnatal biallelic deletion of Ptch led to BCC precancerous lesions of the gastrointestinal epithelium and mesenteric tumors. Hamartomatous gastrointestinal cystic tumors were induced by monoallelic, but not biallelic Ptch mutations, independently of the time-point of mutation induction. These data suggest that the expressivity of Ptch deficiency is largely determined by the time-point, the gene dose and mode of Ptch inactivation. Furthermore, they point to key differences in the tumorigenic mechanisms underlying adult and childhood tumors. The latter ones are unique among all tumors since their occurrence decreases rather than increases with age. A better understanding of mechanisms underlying this ontological restriction is of potential therapeutic value.

  6. Lifetime and 12-month prevalence, severity and unmet need for treatment of common mental disorders in Japan: results from the final dataset of World Mental Health Japan Survey

    PubMed Central

    Ishikawa, H.; Kawakami, N.; Kessler, R. C.

    2016-01-01

    Background The aim of this study is to estimate the lifetime and 12-month prevalence, severity, and treatment of Diagnostic and Statistical Manual of Mental Disorders 4th ed. (DSM-IV) mental disorders in Japan based on the final data set of the World Mental Health Japan Survey conducted in 2002–2006. Methods Face-to-face household interviews of 4,130 respondents who were randomly selected from Japanese-speaking residents aged 20 years or older were conducted from 2002 to 2006 in 11 community populations in Japan (overall response rate, 56%). The World Mental Health version of the World Health Organization Composite International Diagnostic Interview (WMH-CIDI), a fully structured lay administered psychiatric diagnostic interview, was used for diagnostic assessment. Results Lifetime/12-month prevalence of any DSM-IV common mental disorders in Japan was estimated to be 20.3/7.6%. Rank-order of four classes of mental disorders was anxiety disorders (8.1/4.9%), substance disorders (7.4/1.0%), mood disorders (6.5/2.3%), and impulse control disorders (2.0/0.7%). The most common individual disorders were alcohol abuse/dependence (7.3/0.9%), major depressive disorder (6.1/2.2%), specific phobia (3.4/2.3%), and generalized anxiety disorder (2.6/1.3%). While the lifetime prevalence of any mental disorder was greater for males and the middle-aged, the persistence (proportion of 12-month cases among lifetime cases) of any mental disorder was greater for females and younger respondents. Among those with any 12-month disorder, 15.3% were classified as severe, 44.1% moderate, and 40.6% mild. Although a strong association between severity and service use was found, only 21.9% of respondents with any 12-month disorder sought treatment within the last 12 months; only 37.0% of severe cases received medical care. The mental health specialty sector was the most common resource used in Japan. Although the prevalence of mental disorders were quite low, mental disorders were the second

  7. Minimum time solar sailing from geosynchronous orbit to the sun-earth L2 point

    NASA Astrophysics Data System (ADS)

    Hur, Sun H.; Bryson, Arthur E., Jr.

    1992-08-01

    An approximate time-optimal of a solar sail from a geosynchronous orbit to the sun-earth L2 libration point is found using a combined method of local optimization and single shooting. The local optimization strategy is based on maximizing the time rate of change of an energy variable at each time. This strategy overcomes the numerical difficulties associated with solving optimal control problems of long duration like the solar sail transfer problem. The single shooting portion of the method is employed to meet the terminal constraints. The combined method can be applied to other optimal low thrust transfer problems of long duration.

  8. A point implicit time integration technique for slow transient flow problems

    SciTech Connect

    Kadioglu, Samet Y.; Berry, Ray A.; Martineau, Richard C.

    2015-05-01

    We introduce a point implicit time integration technique for slow transient flow problems. The method treats the solution variables of interest (that can be located at cell centers, cell edges, or cell nodes) implicitly and the rest of the information related to same or other variables are handled explicitly. The method does not require implicit iteration; instead it time advances the solutions in a similar spirit to explicit methods, except it involves a few additional function(s) evaluation steps. Moreover, the method is unconditionally stable, as a fully implicit method would be. This new approach exhibits the simplicity of implementation of explicit methods and the stability of implicit methods. It is specifically designed for slow transient flow problems of long duration wherein one would like to perform time integrations with very large time steps. Because the method can be time inaccurate for fast transient problems, particularly with larger time steps, an appropriate solution strategy for a problem that evolves from a fast to a slow transient would be to integrate the fast transient with an explicit or semi-implicit technique and then switch to this point implicit method as soon as the time variation slows sufficiently. We have solved several test problems that result from scalar or systems of flow equations. Our findings indicate the new method can integrate slow transient problems very efficiently; and its implementation is very robust.

  9. Incremental Real-Time Bundle Adjustment for Multi-Camera Systems with Points at Infinity

    NASA Astrophysics Data System (ADS)

    Schneider, J.; Läbe, T.; Förstner, W.

    2013-08-01

    This paper presents a concept and first experiments on a keyframe-based incremental bundle adjustment for real-time structure and motion estimation in an unknown scene. In order to avoid periodic batch steps, we use the software iSAM2 for sparse nonlinear incremental optimization, which is highly efficient through incremental variable reordering and fluid relinearization. We adapted the software to allow for (1) multi-view cameras by taking the rigid transformation between the cameras into account, (2) omnidirectional cameras as it can handle arbitrary bundles of rays and (3) scene points at infinity, which improve the estimation of the camera orientation as points at the horizon can be observed over long periods of time. The real-time bundle adjustment refers to sets of keyframes, consisting of frames, one per camera, taken in a synchronized way, that are initiated if a minimal geometric distance to the last keyframe set is exceeded. It uses interest points in the keyframes as observations, which are tracked in the synchronized video streams of the individual cameras and matched across the cameras, if possible. First experiments show the potential of the incremental bundle adjustment w.r.t. time requirements. Our experiments are based on a multi-camera system with four fisheye cameras, which are mounted on a UAV as two stereo pairs, one looking ahead and one looking backwards, providing a large field of view.

  10. A real-time recursive filter for the attitude determination of the Spacelab instrument pointing subsystem

    NASA Technical Reports Server (NTRS)

    West, M. E.

    1992-01-01

    A real-time estimation filter which reduces sensitivity to system variations and reduces the amount of preflight computation is developed for the instrument pointing subsystem (IPS). The IPS is a three-axis stabilized platform developed to point various astronomical observation instruments aboard the shuttle. Currently, the IPS utilizes a linearized Kalman filter (LKF), with premission defined gains, to compensate for system drifts and accumulated attitude errors. Since the a priori gains are generated for an expected system, variations result in a suboptimal estimation process. This report compares the performance of three real-time estimation filters with the current LKF implementation. An extended Kalman filter and a second-order Kalman filter are developed to account for the system nonlinearities, while a linear Kalman filter implementation assumes that the nonlinearities are negligible. The performance of each of the four estimation filters are compared with respect to accuracy, stability, settling time, robustness, and computational requirements. It is shown, that for the current IPS pointing requirements, the linear Kalman filter provides improved robustness over the LKF with less computational requirements than the two real-time nonlinear estimation filters.

  11. Two Time Point MS Lesion Segmentation in Brain MRI: An Expectation-Maximization Framework

    PubMed Central

    Jain, Saurabh; Ribbens, Annemie; Sima, Diana M.; Cambron, Melissa; De Keyser, Jacques; Wang, Chenyu; Barnett, Michael H.; Van Huffel, Sabine; Maes, Frederik; Smeets, Dirk

    2016-01-01

    Purpose: Lesion volume is a meaningful measure in multiple sclerosis (MS) prognosis. Manual lesion segmentation for computing volume in a single or multiple time points is time consuming and suffers from intra and inter-observer variability. Methods: In this paper, we present MSmetrix-long: a joint expectation-maximization (EM) framework for two time point white matter (WM) lesion segmentation. MSmetrix-long takes as input a 3D T1-weighted and a 3D FLAIR MR image and segments lesions in three steps: (1) cross-sectional lesion segmentation of the two time points; (2) creation of difference image, which is used to model the lesion evolution; (3) a joint EM lesion segmentation framework that uses output of step (1) and step (2) to provide the final lesion segmentation. The accuracy (Dice score) and reproducibility (absolute lesion volume difference) of MSmetrix-long is evaluated using two datasets. Results: On the first dataset, the median Dice score between MSmetrix-long and expert lesion segmentation was 0.63 and the Pearson correlation coefficient (PCC) was equal to 0.96. On the second dataset, the median absolute volume difference was 0.11 ml. Conclusions: MSmetrix-long is accurate and consistent in segmenting MS lesions. Also, MSmetrix-long compares favorably with the publicly available longitudinal MS lesion segmentation algorithm of Lesion Segmentation Toolbox. PMID:28066162

  12. Two Time Point MS Lesion Segmentation in Brain MRI: An Expectation-Maximization Framework.

    PubMed

    Jain, Saurabh; Ribbens, Annemie; Sima, Diana M; Cambron, Melissa; De Keyser, Jacques; Wang, Chenyu; Barnett, Michael H; Van Huffel, Sabine; Maes, Frederik; Smeets, Dirk

    2016-01-01

    Purpose: Lesion volume is a meaningful measure in multiple sclerosis (MS) prognosis. Manual lesion segmentation for computing volume in a single or multiple time points is time consuming and suffers from intra and inter-observer variability. Methods: In this paper, we present MSmetrix-long: a joint expectation-maximization (EM) framework for two time point white matter (WM) lesion segmentation. MSmetrix-long takes as input a 3D T1-weighted and a 3D FLAIR MR image and segments lesions in three steps: (1) cross-sectional lesion segmentation of the two time points; (2) creation of difference image, which is used to model the lesion evolution; (3) a joint EM lesion segmentation framework that uses output of step (1) and step (2) to provide the final lesion segmentation. The accuracy (Dice score) and reproducibility (absolute lesion volume difference) of MSmetrix-long is evaluated using two datasets. Results: On the first dataset, the median Dice score between MSmetrix-long and expert lesion segmentation was 0.63 and the Pearson correlation coefficient (PCC) was equal to 0.96. On the second dataset, the median absolute volume difference was 0.11 ml. Conclusions: MSmetrix-long is accurate and consistent in segmenting MS lesions. Also, MSmetrix-long compares favorably with the publicly available longitudinal MS lesion segmentation algorithm of Lesion Segmentation Toolbox.

  13. Point-of-care diagnostics: will the hurdles be overcome this time?

    PubMed

    Huckle, David

    2006-07-01

    Point-of-care diagnostics have been proposed as the latest development in clinical diagnostics several times in the last 30 years; however, they have not yet fully developed into a business sector to match the projections. This perspective examines the reasons for past failures and the failure of technology to meet user needs. Advances have taken place in the last few years that effectively remove technology as a barrier to the development of point-of-care testing. Even regulatory issues regarding how products are developed and claims supported have been absorbed, understood and now accepted. The emphasis here is on the possible favorable aspects that are novel this time around. These changes have arisen as a result of the situation with global healthcare economics and the pressure from patients to be treated more like customers. The final hurdles relate to the conflict between diagnosis with the patient present and treated as soon as the point-of-care result is available and the entrenched positions of the central laboratory, the suppliers and their established distribution chains, and the way in which healthcare budgets are allocated. The ultimate hurdle that encapsulates all of these issues is reimbursement, which is the final barrier to a significant point-of-care diagnostics market--without reimbursement there will be no market.

  14. Long-term effects of a single course of nicotine treatment in acute ulcerative colitis: remission maintenance in a 12-month follow-up study.

    PubMed

    Guslandi, M

    1999-11-01

    Patients with mild to moderate active colitis who are treated with mesalazine plus transdermal nicotine reportedly suffer fewer relapses than patients treated with mesalazine plus oral prednisone. A long-term follow-up period was carried out to confirm this. Thirty patients with remission of distal colitis after therapy with the above treatment schedules were monitored for 12 months (Rachmilewitz' activity index plus endoscopy). Relapsed patients were retreated in a cross-over fashion. After 12 months recurrences were observed in 14 of 15 patients initially treated with steroids and in 7 of 15 subjects who were had received transdermal nicotine (P = 0.007, Fisher's test). A higher proportion of relapsed patients from the prednisone group, after successful retreatment with nicotine patches, remained in remission after 6 months (20%) than relapsed patients who switched to steroid treatment (57%). Our present results confirm the concept that nicotine-induced remission of ulcerative colitis lasts longer than that obtained by oral corticosteroids.

  15. Effects of a 12-Month Complex Proprioceptive-Coordinative Training Program on Soccer Performance in Prepubertal Boys Aged 10-11 Years.

    PubMed

    Boraczyński, Michał; Sozański, Henryk; Boraczyński, Tomasz

    2017-03-31

    The aim was to examine the effects of a series of on-field proprioceptive-coordinative (P-C) exercises on motor performance (MP) in prepubertal soccer players. Fifty-three male soccer players aged 10.1-11.8 years were randomized among two experimental programs receiving P-C training (P-CT; n = 26) or regular training (RT; n = 27). A control group (C; n = 22) consisted of age-matched (10.3-11.9 years) cohorts not involved in any regular physical activity. Both experimental groups completed an identical 12-month comprehensive soccer program except training in P-CT was modified to substitute small-sided conditioning games with 24 multi-mode P-C exercises with modulated exercise intensity (every 8-9 weeks based on predicted HRmax). Pre-, peri-, and post-training measures included anthropometry and five tests assessing soccer-specific MP: movement rhythm (turning the ball backwards - T1), motor adaptation (running with the ball around poles - T2), spatial orientation (running to sequentially numbered balls - T3), balance (single-leg static balance - T4), and kinesthetic differentiation of movement (landing the ball on a 2 × 2 m sector - T5). Repeated measures ANOVA revealed no significant between-group differences for age, anthropometry and BF% at baseline. Significant main effects for group (P-CT vs. RT) were found in all tests (T1-T5) and main effects for time (group P-CT) in T3-T5, while a significant group × time interaction was observed only in T4 (F = 2.98, p = 0.0204). Post-hoc tests indicated that P-CT attained significantly better results than RT at peri-training (by 26.4%; p < 0.01) and post-training (by 31.9%, p < 0.01). Modulated exercise intensity had little effect on soccer performance (T1-T3, T5). Based on the results, it is recommended that the training of young soccer players be supplemented with the bilateral balance exercises and games employed in the study. Furthermore, the suitability of monitoring HR in P-C exercises targeting the analyzed MP

  16. Improved asthma control in patients with severe, persistent allergic asthma after 12 months of nightly temperature-controlled laminar airflow: an observational study with retrospective comparisons

    PubMed Central

    Schauer, Uwe; Bergmann, Karl-Christian; Gerstlauer, Michael; Lehmann, Sylvia; Gappa, Monika; Brenneken, Amelie; Schulz, Christian; Ahrens, Peter; Schreiber, Jens; Wittmann, Michael; Hamelmann, Eckard

    2015-01-01

    Introduction Continuous or episodic allergen exposure is a major risk factor of frequent symptoms and exacerbations for patients with allergic asthma. It has been shown that temperature-controlled laminar airflow (TLA) significantly reduced allergen exposure and airway inflammation and improved quality of life of patients with poorly controlled allergic asthma. Objective The objective was to evaluate the effects of nighttime TLA when used during real-life conditions for 12 consecutive months in addition to the patients’ regular medication. Methods This multicenter, pre- and postretrospective observational study included patients with inadequately controlled moderate-to-severe allergic asthma who received add-on treatment with TLA for 12 consecutive months. Data on medication use, asthma control, asthma symptoms, lung function, use of hospital resources, and exacerbations were collected after 4 and 12 months and compared with corresponding data collected retrospectively from medical records during the year prior to inclusion in the study. Results Data from 30 patients (mean age 28; range 8–70) completing 4 months and 27 patients completing 12 months of TLA use are presented. The mean number of exacerbations was reduced from 3.6 to 1.3 (p<0.0001), and the ratio of asthma-related emergency room visits or hospitalizations diminished from 72.4 to 23.3% (p=0.001) or from 44.8 to 20.0% (p<0.05), respectively, after 12 months of TLA use. The Asthma Control Test index increased from 14.1 to 18.5 (p<0.0001). After 4 months of TLA use, clear improvements can be shown for most variables in line with the data collected after 12 months. Conclusions The addition of TLA to the patients’ regular medication significantly reduced exacerbations, asthma symptoms, and the utilization of hospital resources. The data support that TLA may be an important new non-pharmacological approach in the management of poorly controlled allergic asthma. PMID:26557252

  17. The Impact of Screening, Brief Intervention and Referral for Treatment in Emergency Department Patients’ Alcohol Use: A 3-, 6- and 12-month Follow-up

    PubMed Central

    2010-01-01

    Aims: This study aims to determine the impact of Screening, Brief Intervention and Referral for Treatment (SBIRT) in reducing alcohol consumption in emergency department (ED) patients at 3, 6, and 12 months following exposure to the intervention. Methods: Patients drinking above the low-risk limits (at-risk to dependence), as defined by National Institute of Alcohol Abuse and Alcoholism (NIAAA), were recruited from 14 sites nationwide from April to August 2004. A quasi-experimental comparison group design included sequential recruitment of intervention and control patients at each site. Control patients received a written handout. The Intervention group received the handout and participated in a brief negotiated interview with direct referral for treatment if indicated. Follow-up surveys were conducted at 3, 6, and 12 months by telephone using an Interactive Voice Response (IVR) system. Results: Of the 1132 eligible patients consented and enrolled (581 control, 551 intervention), 699 (63%), 575 (52%) and 433 (38%) completed follow-up surveys via IVR at 3, 6, and 12 months, respectively. Regression analysis adjusting for the clustered sampling design and using multiple imputation procedures to account for subject attrition revealed that those receiving SBIRT reported roughly three drinks less per week than controls (B = −3.00, SE = 1.06, P < 0.05) and the level of maximum drinks per occasion was approximately three-fourths of a drink less than controls (B = -0.76, SE = 0.29, P < 0.05) at 3 months. At 6 and 12 months post-intervention, these effects had weakened considerably and were no longer statistically or substantively significant. Conclusion: SBIRT delivered by ED providers appears to have short-term effectiveness in reducing at-risk drinking, but multi-contact interventions or booster programs may be necessary to maintain long-term reductions in risky drinking. PMID:20876217

  18. Meta-Analysis of Effect Sizes Reported at Multiple Time Points Using General Linear Mixed Model

    PubMed Central

    Musekiwa, Alfred; Manda, Samuel O. M.; Mwambi, Henry G.; Chen, Ding-Geng

    2016-01-01

    Meta-analysis of longitudinal studies combines effect sizes measured at pre-determined time points. The most common approach involves performing separate univariate meta-analyses at individual time points. This simplistic approach ignores dependence between longitudinal effect sizes, which might result in less precise parameter estimates. In this paper, we show how to conduct a meta-analysis of longitudinal effect sizes where we contrast different covariance structures for dependence between effect sizes, both within and between studies. We propose new combinations of covariance structures for the dependence between effect size and utilize a practical example involving meta-analysis of 17 trials comparing postoperative treatments for a type of cancer, where survival is measured at 6, 12, 18 and 24 months post randomization. Although the results from this particular data set show the benefit of accounting for within-study serial correlation between effect sizes, simulations are required to confirm these results. PMID:27798661

  19. Effect on Insulin, Glucose and Lipids in Overweight/Obese Australian Adults of 12 Months Consumption of Two Different Fibre Supplements in a Randomised Trial

    PubMed Central

    Pal, Sebely; Ho, Suleen; Gahler, Roland J.; Wood, Simon

    2017-01-01

    Higher fibre intakes are associated with risk reduction for chronic diseases. This study investigated the effects of supplementation with PolyGlycopleX® (PGX), a complexed polysaccharide, on insulin, glucose and lipids in overweight and obese individuals. In this double-blind 12 months study, participants were randomised into three groups: control (rice flour); PGX or psyllium (PSY). Participants followed their usual lifestyle and diet but consumed 5 g of their supplement before meals. Insulin was significantly lower in the PGX and PSY groups compared to control at 3 and 6 months and in the PSY group compared to control at 12 months. Serum glucose was significantly lower in the PGX group at 3 months compared to control. Total cholesterol was significantly lower in the PGX and PSY groups compared to control at 3 and 6 months. High density lipoprotein (HDL) cholesterol was significantly increased in the PGX group compared to control at 12 months. low density lipoprotein (LDL) cholesterol was significantly lower in the PGX group at 3 and 6 months compared to control and in the PSY group at 3 months compared to control. A simple strategy of fibre supplementation may offer an effective solution to glucose, insulin and lipid management without the need for other nutrient modification. PMID:28146065

  20. Reducing child conduct disordered behaviour and improving parent mental health in disadvantaged families: a 12-month follow-up and cost analysis of a parenting intervention.

    PubMed

    McGilloway, Sinead; NiMhaille, Grainne; Bywater, Tracey; Leckey, Yvonne; Kelly, Paul; Furlong, Mairead; Comiskey, Catherine; O'Neill, Donal; Donnelly, Michael

    2014-09-01

    The effectiveness of the Incredible Years Basic parent programme (IYBP) in reducing child conduct problems and improving parent competencies and mental health was examined in a 12-month follow-up. Pre- to post-intervention service use and related costs were also analysed. A total of 103 families and their children (aged 32-88 months), who previously participated in a randomised controlled trial of the IYBP, took part in a 12-month follow-up assessment. Child and parent behaviour and well-being were measured using psychometric and observational measures. An intention-to-treat analysis was carried out using a one-way repeated measures ANOVA. Pairwise comparisons were subsequently conducted to determine whether treatment outcomes were sustained 1 year post-baseline assessment. Results indicate that post-intervention improvements in child conduct problems, parenting behaviour and parental mental health were maintained. Service use and associated costs continued to decline. The results indicate that parent-focused interventions, implemented in the early years, can result in improvements in child and parent behaviour and well-being 12 months later. A reduced reliance on formal services is also indicated.

  1. A Time-Domain CMOS Oscillator-Based Thermostat with Digital Set-Point Programming

    PubMed Central

    Chen, Chun-Chi; Lin, Shih-Hao

    2013-01-01

    This paper presents a time-domain CMOS oscillator-based thermostat with digital set-point programming [without a digital-to-analog converter (DAC) or external resistor] to achieve on-chip thermal management of modern VLSI systems. A time-domain delay-line-based thermostat with multiplexers (MUXs) was used to substantially reduce the power consumption and chip size, and can benefit from the performance enhancement due to the scaling down of fabrication processes. For further cost reduction and accuracy enhancement, this paper proposes a thermostat using two oscillators that are suitable for time-domain curvature compensation instead of longer linear delay lines. The final time comparison was achieved using a time comparator with a built-in custom hysteresis to generate the corresponding temperature alarm and control. The chip size of the circuit was reduced to 0.12 mm2 in a 0.35-μm TSMC CMOS process. The thermostat operates from 0 to 90 °C, and achieved a fine resolution better than 0.05 °C and an improved inaccuracy of ± 0.6 °C after two-point calibration for eight packaged chips. The power consumption was 30 μW at a sample rate of 10 samples/s. PMID:23385403

  2. A time-domain CMOS oscillator-based thermostat with digital set-point programming.

    PubMed

    Chen, Chun-Chi; Lin, Shih-Hao

    2013-01-29

    This paper presents a time-domain CMOS oscillator-based thermostat with digital set-point programming [without a digital-to-analog converter (DAC) or external resistor] to achieve on-chip thermal management of modern VLSI systems. A time-domain delay-line-based thermostat with multiplexers (MUXs) was used to substantially reduce the power consumption and chip size, and can benefit from the performance enhancement due to the scaling down of fabrication processes. For further cost reduction and accuracy enhancement, this paper proposes a thermostat using two oscillators that are suitable for time-domain curvature compensation instead of longer linear delay lines. The final time comparison was achieved using a time comparator with a built-in custom hysteresis to generate the corresponding temperature alarm and control. The chip size of the circuit was reduced to 0.12 mm2 in a 0.35-mm TSMC CMOS process. The thermostat operates from 0 to 90 °C, and achieved a fine resolution better than 0.05 °C and an improved inaccuracy of ± 0.6 °C after two-point calibration for eight packaged chips. The power consumption was 30 µW at a sample rate of 10 samples/s.

  3. Outcome and clinical changes in patients 3, 6, 12 months after a severe or major hand injury - can sense of coherence be an indicator for rehabilitation focus?

    PubMed Central

    2010-01-01

    Background Our objective was to explore outcome and clinical changes in hand function, satisfaction in daily occupations, sleep disturbances, health and quality of life in consecutive patients after a severe or major hand injury. Our objective was also to investigate possible differences between groups according to severity of injury, presence of peripheral nerve injury and the patients' sense of coherence. Methods A postal questionnaire, including demographic data, disabilities of the arm, shoulder and hand (DASH), QoL (SF-36), EuroQol (EQ-5D VAS), hand function (VAS), satisfaction in daily occupation (SDO), was sent out 3, 6 and 12 months after injury to 45 consecutive patients with a severe or major hand injury. Sense of coherence (SOC) was evaluated at 6 months. For the descriptive study, non-parametric tests were used since almost all results were measured with ordinal scales, the study sample was small, and most variables not normally distributed. Results Almost all self-assessed aspects of hand function, satisfaction in daily occupations, health (DASH), and physical QoL (SF-36) improved statistically for the whole group over time. Large clinical improvement was seen for physical QoL and health, while a low or no improvement was observed for mental QoL, and cold sensitivity. Few differences were found between participants with a severe or major of hand injury or with or without a major nerve injury. No significant differences in demographic data were observed between participants with high or low SOC, but participants with low SOC showed significantly lower satisfaction in daily occupations, higher DASH scores, lower mental QoL, more sleep disturbances, and bodily pain. Correlation was found between SOC, and QoL, health and satisfaction in daily occupations. Conclusions SOC had a significant influence on patients with a severe or major traumatic hand injury. Patients with lower SOC would probably benefit from extra support and help to master their daily life

  4. 75 FR 1574 - Endangered and Threatened Wildlife and Plants; 12-month Finding on a Petition To Revise Critical...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-12

    ..., p. 1). Although manatees occupy different habitats during various times of the year (Deutsch et al..., and return once again when water temperatures are too cold (Hartman 1979, p. 26; Deutsch et al. 2000... winter months, based on data from telemetry (Reid et al. 1991, p. 185; Weigle et al. 2001, p. 18;...

  5. Detecting space-time alternating biological signals close to the bifurcation point.

    PubMed

    Jia, Zhiheng; Bien, Harold; Entcheva, Emilia

    2010-02-01

    Time-alternating biological signals, i.e., alternans, arise in variety of physiological states marked by dynamic instabilities, e.g., period doubling. Normally, a sequence of large-small-large transients, they can exhibit variable patterns over time and space, including spatial discordance. Capture of the early formation of such alternating regions is challenging because of the spatiotemporal similarities between noise and the small-amplitude alternating signals close to the bifurcation point. We present a new approach for automatic detection of alternating signals in large noisy spatiotemporal datasets by exploiting quantitative measures of alternans evolution, e.g., temporal persistence, and by preserving phase information. The technique specifically targets low amplitude, relatively short alternating sequences and is validated by combinatorics-derived probabilities and empirical datasets with white noise. Using high-resolution optical mapping in live cardiomyocyte networks, exhibiting calcium alternans, we reveal for the first time early fine-scale alternans, close to the noise level, which are linked to the later formation of larger regions and evolution of spatially discordant alternans. This robust method aims at quantification and better understanding of the onset of cardiac arrhythmias and can be applied to general analysis of space-time alternating signals, including the vicinity of the bifurcation point.

  6. Analysis of the kinetics of lipid peroxidation in terms of characteristic time-points.

    PubMed

    Pinchuk, Ilya; Lichtenberg, Dov

    2014-02-01

    Measuring peroxidation of aggregated lipids in model systems (liposomes, micelles, emulsions or microemulsions) as well as in samples of biological origin ex vivo (isolated lipoproteins, blood sera or plasma) is widely used in medical and biological investigations, to evaluate the oxidative stress, antioxidants' efficiency and lipid oxidizability in different pathophysiological states. To avoid possible artifacts, such investigations must be based on the time course of peroxidation (i.e. on kinetic studies). To be able to compare complex kinetic profiles, it is important to characterize them in terms of mechanistically meaningful and experimentally unequivocal parameters. In this review, we characterize the typically observed continuous kinetic profiles in terms of a limited number of characteristic time-points (both commonly used and additional time-points and their combinations) that can be derived from experimental time-dependencies. The meaning of each of the experimentally observed characteristic parameters is presented in terms of rate constants and concentrations, derived on the basis of mechanistic considerations. Theoretical expressions for these characteristic parameters are based on a model that includes both the inhibited peroxidation and the uninhibited peroxidation occurring after consumption of the antioxidant(s). Comparison between theoretically predicted dependencies and experimental data support our treatment considered with special emphasis on transition metals-induced peroxidation of lipoproteins.

  7. Motion data classification on the basis of dynamic time warping with a cloud point distance measure

    NASA Astrophysics Data System (ADS)

    Switonski, Adam; Josinski, Henryk; Zghidi, Hafedh; Wojciechowski, Konrad

    2016-06-01

    The paper deals with the problem of classification of model free motion data. The nearest neighbors classifier which is based on comparison performed by Dynamic Time Warping transform with cloud point distance measure is proposed. The classification utilizes both specific gait features reflected by a movements of subsequent skeleton joints and anthropometric data. To validate proposed approach human gait identification challenge problem is taken into consideration. The motion capture database containing data of 30 different humans collected in Human Motion Laboratory of Polish-Japanese Academy of Information Technology is used. The achieved results are satisfactory, the obtained accuracy of human recognition exceeds 90%. What is more, the applied cloud point distance measure does not depend on calibration process of motion capture system which results in reliable validation.

  8. Levodopa-Carbidopa Intestinal Gel in Advanced Parkinson'd Disease: Final 12-Month, Open-Label Results

    PubMed Central

    Fernandez, Hubert H; Standaert, David G; Hauser, Robert A; Lang, Anthony E; Fung, Victor SC; Klostermann, Fabian; Lew, Mark F; Odin, Per; Steiger, Malcolm; Yakupov, Eduard Z; Chouinard, Sylvain; Suchowersky, Oksana; Dubow, Jordan; Hall, Coleen M; Chatamra, Krai; Robieson, Weining Z; Benesh, Janet A; Espay, Alberto J

    2015-01-01

    Motor complications in Parkinson's disease (PD) are associated with long-term oral levodopa treatment and linked to pulsatile dopaminergic stimulation. l-dopa-carbidopa intestinal gel (LCIG) is delivered continuously by percutaneous endoscopic gastrojejunostomy tube (PEG-J), which reduces l-dopa-plasma–level fluctuations and can translate to reduced motor complications. We present final results of the largest international, prospective, 54-week, open-label LCIG study. PD patients with severe motor fluctuations (>3 h/day “off” time) despite optimized therapy received LCIG monotherapy. Additional PD medications were allowed >28 days post-LCIG initiation. Safety was the primary endpoint measured through adverse events (AEs), device complications, and number of completers. Secondary endpoints included diary-assessed off time, “on” time with/without troublesome dyskinesia, UPDRS, and health-related quality-of-life (HRQoL) outcomes. Of 354 enrolled patients, 324 (91.5%) received PEG-J and 272 (76.8%) completed the study. Most AEs were mild/moderate and transient; complication of device insertion (34.9%) was the most common. Twenty-seven (7.6%) patients withdrew because of AEs. Serious AEs occurred in 105 (32.4%), most commonly complication of device insertion (6.5%). Mean daily off time decreased by 4.4 h/65.6% (P < 0.001). On time without troublesome dyskinesia increased by 4.8 h/62.9% (P < 0.001); on time with troublesome dyskinesia decreased by 0.4 h/22.5% (P = 0.023). Improvements persisted from week 4 through study completion. UPDRS and HRQoL outcomes were also improved throughout. In the advanced PD population, LCIG's safety profile consisted primarily of AEs associated with the device/procedure, l-dopa/carbidopa, and advanced PD. LCIG was generally well tolerated and demonstrated clinically significant improvements in motor function, daily activities, and HRQoL sustained over 54 weeks. © 2014 The Authors. Movement Disorders published by Wiley

  9. New real-time-PCR method to identify single point mutations in hepatitis C virus

    PubMed Central

    Chen, Qian; Belmonte, Irene; Buti, Maria; Nieto, Leonardo; Garcia-Cehic, Damir; Gregori, Josep; Perales, Celia; Ordeig, Laura; Llorens, Meritxell; Soria, Maria Eugenia; Esteban, Rafael; Esteban, Juan Ignacio; Rodriguez-Frias, Francisco; Quer, Josep

    2016-01-01

    AIM To develop a fast, low-cost diagnostic strategy to identify single point mutations in highly variable genomes such as hepatitis C virus (HCV). METHODS In patients with HCV infection, resistance-associated amino acid substitutions within the viral quasispecies prior to therapy can confer decreased susceptibility to direct-acting antiviral agents and lead to treatment failure and virological relapse. One such naturally occurring mutation is the Q80K substitution in the HCV-NS3 protease gene, which confers resistance to PI inhibitors, particularly simeprevir. Low-cost, highly sensitive techniques enabling routine detection of these single point mutations would be useful to identify patients at a risk of treatment failure. LightCycler methods, based on real-time PCR with sequence-specific probe hybridization, have been implemented in most diagnostic laboratories. However, this technique cannot identify single point mutations in highly variable genetic environments, such as the HCV genome. To circumvent this problem, we developed a new method to homogenize all nucleotides present in a region except the point mutation of interest. RESULTS Using nucleotide-specific probes Q, K, and R substitutions at position 80 were clearly identified at a sensitivity of 10% (mutations present at a frequency of at least 10% were detected). The technique was successfully applied to identify the Q80K substitution in 240 HCV G1 serum samples, with performance comparable to that of direct Sanger sequencing, the current standard procedure for this purpose. The new method was then validated in a Catalonian population of 202 HCV G1-infected individuals. Q80K was detected in 14.6% of G1a patients and 0% of G1b in our setting. CONCLUSION A fast, low-cost diagnostic strategy based on real-time PCR and fluorescence resonance energy transfer probe melting curve analysis has been successfully developed to identify single point mutations in highly variable genomes such as hepatitis C virus. This

  10. Calculation of power spectrums from digital time series with missing data points

    NASA Technical Reports Server (NTRS)

    Murray, C. W., Jr.

    1980-01-01

    Two algorithms are developed for calculating power spectrums from the autocorrelation function when there are missing data points in the time series. Both methods use an average sampling interval to compute lagged products. One method, the correlation function power spectrum, takes the discrete Fourier transform of the lagged products directly to obtain the spectrum, while the other, the modified Blackman-Tukey power spectrum, takes the Fourier transform of the mean lagged products. Both techniques require fewer calculations than other procedures since only 50% to 80% of the maximum lags need be calculated. The algorithms are compared with the Fourier transform power spectrum and two least squares procedures (all for an arbitrary data spacing). Examples are given showing recovery of frequency components from simulated periodic data where portions of the time series are missing and random noise has been added to both the time points and to values of the function. In addition the methods are compared using real data. All procedures performed equally well in detecting periodicities in the data.

  11. Time reversal ultrasound focusing to a point away from the beacon location

    NASA Astrophysics Data System (ADS)

    Sinelnikov, Yegor; Sutin, Alexander; Gandhi, Gaurav; Sarvazyan, Armen

    2012-10-01

    In percutaneous procedures there is often a need to focus therapeutic ultrasound to a predefined area without affecting surrounding tissues. Focusing based on Time Reversal Acoustics (TRA) principles constitutes a promising approach for generating high intensity ultrasound field tailored to the shape of the predefined area. Conventional TRA technique enables ultrasound focusing only at a site, where there is an ultrasound beacon, e.g. piezo-transducer mounted at the tip of a catheter. We developed a method of steering the focus away from the beacon location. The method is based on the measurements of impulse response (IR) in several reference points and calculating virtual IRs for the points outside the reference beacon location. The IR for the point away from the beacon is constructed based on mathematical extrapolation of the measured reference IRs frequency spectra, particularly phases. The effectiveness of extrapolated TRA focusing is explored experimentally and by computer simulation. Potential applications include ultrasounda-ssisted drug delivery, artery recanalization and tumor ablation.

  12. Prediction model for outcome after low-back surgery: individualized likelihood of complication, hospital readmission, return to work, and 12-month improvement in functional disability.

    PubMed

    McGirt, Matthew J; Sivaganesan, Ahilan; Asher, Anthony L; Devin, Clinton J

    2015-12-01

    OBJECT Lumbar spine surgery has been demonstrated to be efficacious for many degenerative spine conditions. However, there is wide variability in outcome after spine surgery at the individual patient level. All stakeholders in spine care will benefit from identification of the unique patient or disease subgroups that are least likely to benefit from surgery, are prone to costly complications, and have increased health care utilization. There remains a large demand for individual patient-level predictive analytics to guide decision support to optimize outcomes at the patient and population levels. METHODS One thousand eight hundred three consecutive patients undergoing spine surgery for various degenerative lumbar diagnoses were prospectively enrolled and followed for 1 year. A comprehensive patient interview and health assessment was performed at baseline and at 3 and 12 months after surgery. All predictive covariates were selected a priori. Eighty percent of the sample was randomly selected for model development, and 20% for model validation. Linear regression was performed with Bayesian model averaging to model 12-month ODI (Oswestry Disability Index). Logistic regression with Bayesian model averaging was used to model likelihood of complications, 30-day readmission, need for inpatient rehabilitation, and return to work. Goodness-of-fit was assessed via R(2) for 12-month ODI and via the c-statistic, area under the receiver operating characteristic curve (AUC), for the categorical endpoints. Discrimination (predictive performance) was assessed, using R(2) for the ODI model and the c-statistic for the categorical endpoint models. Calibration was assessed using a plot of predicted versus observed values for the ODI model and the Hosmer-Lemeshow test for the categorical endpoint models. RESULTS On average, all patient-reported outcomes (PROs) were improved after surgery (ODI baseline vs 12 month: 50.4 vs 29.5%, p < 0.001). Complications occurred in 121 patients (6

  13. Patients with angina with normal and near normal coronary arteries: clinical and psychosocial state 12 months after angiography.

    PubMed Central

    Bass, C; Wade, C; Hand, D; Jackson, G

    1983-01-01

    The clinical and psychosocial states of 46 patients (26 men and 20 women) who had undergone cardiac catheterisation were examined prospectively. All of the patients had insignificant (less than 50%) coronary lesions and had been told that no limitation of activity was necessary. Twelve months after angiography 19 of the patients continued to complain of chest pain. Twenty one reported phobic symptoms, and 13 were found by standardised clinical interview to have psychiatric morbidity. This had been evident at the time of catheterisation in 28. Twenty three patients had evidence of unexplained breathlessness, 13 were taking psychotropic drugs, 29 were continuing to consult a doctor, and 11 were unable to work because of their symptoms. Patients initially assessed as having high levels of psychiatric morbidity and raised neuroticism scores were more likely to complain of chest pain one year after angiography. The 19 patients with persistent pain also had significantly higher levels of psychiatric and social morbidity at one year than the 27 patients whose chest pain had lessened during the follow up period. Those patients who fail to improve after being told that they have normal or nearly normal coronary arteries tend to be a chronically neurotic and socially maladjusted group in whom psychiatric disorder presents with predominantly somatic symptoms. PMID:6416475

  14. The effects of anti-depressants on depression symptom scores at 12 months follow-up in patients with cardiometabolic disease: Results from a large primary care cohort

    PubMed Central

    Jani, Bhautesh Dinesh; Purves, David; Barry, Sarah J. E.; McCowan, Colin; Cavanagh, Jonathan; Mair, Frances S.

    2015-01-01

    Background: Evidence on the long-term usefulness of anti-depressants in managing depression in cardiometabolic disease is limited. Aim: We examined the effects of anti-depressant prescribing on depressive symptoms at 12 months follow-up in patients with cardiometabolic disease and a positive depression screening result at baseline. Design and Setting: We retrospectively reviewed routine UK primary care data for patients with coronary heart disease, diabetes and previous stroke for the year 2008–2009. 35,537 patients with one of the three above diseases underwent depression screening using the Hospital Anxiety and Depression Scale (HADS-D). Of 7080 patients with a positive screening result (HADS-D ≥ 8), 3933 (55.5%) patients had a repeat HADS-D recorded at 12 months follow-up. Methods: We compared the change in HADS-D at follow-up and remission rate in those who were prescribed anti-depressants (n = 223) against those who were not (n = 3710). Results: The mean change in HADS-D from baseline, for the nonprescribed group was similar to the reduction observed in patients who were continuously prescribed (n = 93) with anti-depressants during follow-up. Patients who were prescribed intermittently (n = 72) or only one (n = 58) prescription during follow-up had a lower reduction in HADS-D compared to the nonprescribed group. There was no difference in remission rates between continuously prescribed and the nonprescribed group, but remission was lower in patients prescribed intermittently and single prescription. Conclusion: Improvement in depressive symptoms in patients with cardiometabolic disease at 12 months was not any better in patients prescribed with anti-depressants compared to the nonprescribed group. The role of anti-depressants in the management of depression in cardiometabolic disease merits further investigation. PMID:26286616

  15. Oral administration of a curcumin-phospholipid delivery system for the treatment of central serous chorioretinopathy: a 12-month follow-up study

    PubMed Central

    Mazzolani, Fabio; Togni, Stefano

    2013-01-01

    Background The therapeutic effects of Meriva®, a curcumin-phospholipid (lecithin) delivery system (formulated as Norflo® tablets), on visual acuity and retinal thickness in patients with acute and chronic central serous chorioretinopathy was previously investigated in a six-month open-label study. Methods In this follow-up study, visual acuity was again assessed by ophthalmologic evaluation and retinal thickness by optical coherence tomography (OCT). Norflo tablets were administered twice daily to patients with central serous chorioretinopathy. The study group consisted of 12 patients (total 18 eyes) who completed 12 months of follow-up. The primary endpoint was change in visual acuity before and after treatment with Norflo, and change in neuroretinal or retinal pigment epithelium detachment on OCT was the secondary endpoint. Results After 12 months of therapy, no eyes showed further reduction in visual acuity, 39% showed stabilization, and 61% showed statistically significant improvement (P = 0.0001 by Student’s t-test and P = 0.0005 by Wilcoxon signed rank test). Ninety-five percent of eyes showed a reduction in neuroretinal or retinal pigment epithelium detachment and 5% showed stabilization. The difference in retinal thickness after 12 months was statistically significant (P = 0.0001 by Student’s t-test and P = 0.0004 by Wilcoxon signed rank test). Conclusion These results, albeit preliminary, confirm our previous finding that this curcumin delivery system is effective in the management of central serous chorioretinopathy. When administered in a bioavailable formulation, curcumin is worth considering as a therapeutic agent for the management of inflammatory and degenerative eye conditions involving activation of retinal microglial cells. PMID:23723686

  16. Physical therapy plus general practitioners' care versus general practitioners' care alone for sciatica: a randomised clinical trial with a 12-month follow-up.

    PubMed

    Luijsterburg, Pim A J; Verhagen, Arianne P; Ostelo, Raymond W J G; van den Hoogen, Hans J M M; Peul, Wilco C; Avezaat, Cees J J; Koes, Bart W

    2008-04-01

    A randomised clinical trial in primary care with a 12-months follow-up period. About 135 patients with acute sciatica (recruited from May 2003 to November 2004) were randomised in two groups: (1) the intervention group received physical therapy (PT) added to the general practitioners' care, and (2) the control group with general practitioners' care only. To assess the effectiveness of PT additional to general practitioners' care compared to general practitioners' care alone, in patients with acute sciatica. There is a lack of knowledge concerning the effectiveness of PT in patients with sciatica. The primary outcome was patients' global perceived effect (GPE). Secondary outcomes were severity of leg and back pain, severity of disability, general health and absence from work. The outcomes were measured at 3, 6, 12 and 52 weeks after randomisation. At 3 months follow-up, 70% of the intervention group and 62% of the control group reported improvement (RR 1.1; 95% CI 0.9-1.5). At 12 months follow-up, 79% of the intervention group and 56% of the control group reported improvement (RR 1.4; 95% CI 1.1; 1.8). No significant differences regarding leg pain, functional status, fear of movement and health status were found at short-term or long-term follow-up. At 12 months follow-up, evidence was found that PT added to general practitioners' care is only more effective regarding GPE, and not more cost-effective in the treatment of patients with acute sciatica than general practitioners' care alone. There are indications that PT is especially effective regarding GPE in patients reporting severe disability at presentation.

  17. [Prevalence of experience of physical and psychological violence in the general population in the past 12 months. Results of the German Health Interview and Examination Survey for Adults (DEGS1)].

    PubMed

    Lange, Cornelia; Starker, Anne; von der Lippe, Elena; Hölling, Heike

    2016-01-01

    Experiences of violence may have considerable psychosocial and health implications. A violence screening tool was implemented in the German Health Interview and Examination Survey for Adults (DEGS1) to depict the perpetrators' and victims' point of view. The study participants were between 18 and 64 years old (n = 5939). The aim of this article is to assess the percentage of people who experienced physical and psychological violence in the last 12 months or who suffered negative effects on their quality of life as a consequence or who were perpetrators of multiple acts of violence. The characteristics of victims, offenders, and their conflict partners are described. Furthermore, specific constellations of violence experience with regard to health-related quality of life are described. Finally, the association between being a victim of violence and different factors is estimated. In total, 2.7% of women and 4.3% of men reported multiple experiences of physical violence in the last 12 months or having their lives negatively impacted as a consequence of violence. Experience of psychological violence was reported by 18.9% of women and 15.4% of men. Women are more likely than men to be both perpetrator and victim within the family. Men are more likely than women to be both the perpetrator and victim outside of the family environment. Regardless of whether they are the victim or perpetrator of violence, the psychological well-being is significantly worse than those of people who did not experience violence. Experience of violence in childhood and adolescence increases the risk of becoming victim or perpetrator of violence later on in life. The findings presented here describe the psychological and physical experience of violence as one part of violence committed in the whole population. Some prevention advice is also presented.

  18. Bone Mass Outcomes in Patients With Osteoporosis Treated With Risedronate After Alendronate Failure: a 12-Month Follow-Up Study.

    PubMed

    Mendonça, Leonardo Teixeira; Pinheiro, Marcelo Medeiros; Szejnfeld, Vera Lúcia; Castro, Charlles Heldan de Moura

    Oral bisphosphonates are the drugs most frequently used for the treatment of osteoporosis. Clinicians usually switch between these drugs in clinical practice based on differences in efficacy. We aim to investigate the reasons associated with switching between oral bisphosphonates and to evaluate bone mass response and the incidence of fractures 12 mo after the exchange in a cohort of patients with osteoporosis seen at a tertiary hospital. Patients with osteoporosis who switched between oral bisphosphonates between January 2007 and December 2014 were included. Bone mass measured by dual-energy X-ray absorptiometry and the incidence of fracture were evaluated. A total of 112 patients (73.1 yr old on average, 95.5% women, 98% postmenopausal) were included. All patients were taking alendronate at the time of the switch to risedronate. In 91 patients (81.3%), the following reasons for the exchange of medication were identified: bone loss (59.8%), adverse events (11.6%), and recent fragility fracture (10.7%). One year after the switch, bone densitometry revealed bone loss in 51 patients (45.5%), bone mass maintenance in 34 (30.4%), and bone mass gain in 27 (24.1%). No new vertebral fracture was detected and no nonvertebral fracture was reported in 12 mo of follow-up. Bone mass outcomes (gain, loss, or maintenance) were not associated with the reason for switching between oral bisphosphonates. Similarly, none of the parameters evaluated could predict good densitometric response (gain or maintenance) in this scenario. Our findings suggest that the use of risedronate should not be recommended in the scenario of treatment failure or adverse events following the use of alendronate.

  19. Real-time IP-hologram conversion hardware based on floating point DSPs

    NASA Astrophysics Data System (ADS)

    Oi, Ryutaro; Mishina, Tomoyuki; Yamamoto, Kenji; Okui, Makoto

    2009-02-01

    Holography is a 3-D display method that fully satisfies the visual characteristics of the human eye. However, the hologram must be developed in a darkroom under laser illumination. We attempted hologram generation under white light by adopting an integral photography (IP) technique as the input. In this research, we developed a hardware converter to convert IP input (with 120×66 elemental images) to a hologram with high definition television (HDTV) resolution (approximately 2 million pixels). This conversion could be carried out in real time. In this conversion method, each elemental image can be independently extracted and processed. Our hardware contains twenty 300-MHz floating-point digital signal processors (DSPs) operating in parallel. We verified real-time conversion operations by the implemented hardware.

  20. Time delay of critical images in the vicinity of cusp point of gravitational-lens systems

    NASA Astrophysics Data System (ADS)

    Alexandrov, A.; Zhdanov, V.

    2016-12-01

    We consider approximate analytical formulas for time-delays of critical images of a point source in the neighborhood of a cusp-caustic. We discuss zero, first and second approximations in powers of a parameter that defines the proximity of the source to the cusp. These formulas link the time delay with characteristics of the lens potential. The formula of zero approximation was obtained by Congdon, Keeton & Nordgren (MNRAS, 2008). In case of a general lens potential we derived first order correction thereto. If the potential is symmetric with respect to the cusp axis, then this correction is identically equal to zero. For this case, we obtained second order correction. The relations found are illustrated by a simple model example.

  1. Repair of Physiologic Time Series: Replacement of Anomalous Data Points to Preserve Fractal Exponents

    PubMed Central

    Shelhamer, Mark; Lowen, Steven B.

    2017-01-01

    Extraction of fractal exponents via the slope of the power spectrum is common in the analysis of many physiological time series. The fractal structure thus characterized is a manifestation of long-term correlations, for which the temporal order of the sample values is crucial. However, missing data points due to artifacts and dropouts are common in such data sets, which can seriously disrupt the computation of fractal parameters. We evaluated a number of methods for replacing missing data in time series to enable reliable extraction of the fractal exponent and make recommendations as to the preferred replacement method depending on the proportion of missing values and any a priori estimate of the fractal exponent. PMID:28271060

  2. Additive effects of nutritional supplementation, together with bisphosphonates, on bone mineral density after hip fracture: a 12-month randomized controlled study

    PubMed Central

    Flodin, Lena; Sääf, Maria; Cederholm, Tommy; Al-Ani, Amer N; Ackermann, Paul W; Samnegård, Eva; Dalen, Nils; Hedström, Margareta

    2014-01-01

    Background After a hip fracture, a catabolic state develops, with increased bone loss during the first year. The aim of this study was to evaluate the effects of postoperative treatment with calcium, vitamin D, and bisphosphonates (alone or together) with nutritional supplementation on total hip and total body bone mineral density (BMD). Methods Seventy-nine patients (56 women), with a mean age of 79 years (range, 61–96 years) and with a recent hip fracture, who were ambulatory before fracture and without severe cognitive impairment, were included. Patients were randomized to treatment with bisphosphonates (risedronate 35 mg weekly) for 12 months (B; n=28), treatment with bisphosphonates along with nutritional supplementation (40 g protein, 600 kcal daily) for the first 6 months (BN; n=26), or to controls (C; n=25). All participants received calcium (1,000 mg) and vitamin D3 (800 IU) daily. Total hip and total body BMD were assessed with dual-energy X-ray absorptiometry at baseline, 6, and 12 months. Marker of bone resorption C-terminal telopeptide of collagen I and 25-hydroxy vitamin D were analyzed in serum. Results Analysis of complete cases (70/79 at 6 months and 67/79 at 12 months) showed an increase in total hip BMD of 0.7% in the BN group, whereas the B and C groups lost 1.1% and 2.4% of BMD, respectively, between baseline and 6 months (P=0.071, between groups). There was no change in total body BMD between baseline and 12 months in the BN group, whereas the B group and C group both lost BMD, with C losing more than B (P=0.009). Intention-to-treat analysis was in concordance with the complete cases analyses. Conclusion Protein-and energy-rich supplementation in addition to calcium, vitamin D, and bisphosphonate therapy had additive effects on total body BMD and total hip BMD among elderly hip fracture patients. PMID:25045257

  3. Sonidegib for the treatment of advanced basal cell carcinoma: a comprehensive review of sonidegib and the BOLT trial with 12-month update.

    PubMed

    Chen, Leon; Silapunt, Sirunya; Migden, Michael R

    2016-09-01

    The Hedgehog inhibitors are promising alternative for patients with advanced basal cell carcinoma that are not amenable to radiotherapy or surgery. Sonidegib, also known as LDE225, is an orally available SMO antagonist that was recently approved by the US FDA for the treatment of patients with locally advanced basal cell carcinoma. This article will provide an overview of the pharmacology and pharmacokinetics of sonidegib and in-depth analysis of the BOLT trial with additional data from the 12-month update. The present challenges associated with Hedgehog inhibitors will also be discussed.

  4. Effect of recent spinal cord injury on wnt signaling antagonists (sclerostin and dkk-1) and their relationship with bone loss. A 12-month prospective study.

    PubMed

    Gifre, Laia; Vidal, Joan; Carrasco, Josep L; Filella, Xavier; Ruiz-Gaspà, Silvia; Muxi, Africa; Portell, Enric; Monegal, Ana; Guañabens, Nuria; Peris, Pilar

    2015-06-01

    Spinal cord injury (SCI) has been associated with a marked increase in bone loss and bone remodeling, especially short-term after injury. The absence of mechanical load, mediated by osteocyte mechanosensory function, seems to be a causative factor related to bone loss in this condition. However, the pathogenesis and clinical management of this process remain unclear. Therefore, the aim of the study was to analyze the effect of recent SCI on the Wnt pathway antagonists, sclerostin and Dickkopf (Dkk-1), and their relationship with bone turnover and bone mineral density (BMD) evolution. Forty-two patients (aged 35 ± 14yrs) with a recent (<6months) complete SCI were prospectively included. Sclerostin and Dkk-1, bone turnover markers (bone formation: PINP, bone ALP; resorption: sCTx) and BMD (lumbar spine, proximal femur, total body and lower extremities [DXA]) were assessed at baseline and at 6 and 12 months. The results were compared with a healthy control group. 22/42 patients completed the 12-month follow-up. At baseline, SCI patients showed a marked increase in bone markers (PINP and sCTx), remaining significantly increased at up to 6 months of follow-up. Additionally, they presented significantly increased Dkk-1 values throughout the study, whereas sclerostin values did not significantly change. BMD markedly decreased at the proximal femur (-20.2 ± 5.4%, p < 0.01), total body (-5.7 ± 2.2%, p = 0.02) and lower extremities (-13.1 ± 4.5%, p = 0.01) at 12 months. Consequently, 59% of patients developed densitometric osteoporosis at 12 months. Patients with higher Dkk-1 values (>58 pmol/L) at baseline showed higher sublesional BMD loss. In conclusion, this study shows that short-term after SCI there is a marked increase in bone turnover and bone loss, the latter associated with an increase in Dkk-1 serum levels. The persistence of increased levels of this Wnt antagonist throughout the study and their relationship with the magnitude of

  5. A Novel Method for Fast Change-Point Detection on Simulated Time Series and Electrocardiogram Data

    PubMed Central

    Qi, Jin-Peng; Zhang, Qing; Zhu, Ying; Qi, Jie

    2014-01-01

    Although Kolmogorov-Smirnov (KS) statistic is a widely used method, some weaknesses exist in investigating abrupt Change Point (CP) problems, e.g. it is time-consuming and invalid sometimes. To detect abrupt change from time series fast, a novel method is proposed based on Haar Wavelet (HW) and KS statistic (HWKS). First, the two Binary Search Trees (BSTs), termed TcA and TcD, are constructed by multi-level HW from a diagnosed time series; the framework of HWKS method is implemented by introducing a modified KS statistic and two search rules based on the two BSTs; and then fast CP detection is implemented by two HWKS-based algorithms. Second, the performance of HWKS is evaluated by simulated time series dataset. The simulations show that HWKS is faster, more sensitive and efficient than KS, HW, and T methods. Last, HWKS is applied to analyze the electrocardiogram (ECG) time series, the experiment results show that the proposed method can find abrupt change from ECG segment with maximal data fluctuation more quickly and efficiently, and it is very helpful to inspect and diagnose the different state of health from a patient's ECG signal. PMID:24690633

  6. Scattering experiments with microwave billiards at an exceptional point under broken time-reversal invariance.

    PubMed

    Bittner, S; Dietz, B; Harney, H L; Miski-Oglu, M; Richter, A; Schäfer, F

    2014-03-01

    Scattering experiments with microwave cavities were performed and the effects of broken time-reversal invariance (TRI), induced by means of a magnetized ferrite placed inside the cavity, on an isolated doublet of nearly degenerate resonances were investigated. All elements of the effective Hamiltonian of this two-level system were extracted. As a function of two experimental parameters, the doublet and the associated eigenvectors could be tuned to coalesce at a so-called exceptional point (EP). The behavior of the eigenvalues and eigenvectors when encircling the EP in parameter space was studied, including the geometric amplitude that builds up in the case of broken TRI. A one-dimensional subspace of parameters was found where the differences of the eigenvalues are either real or purely imaginary. There, the Hamiltonians were found to be PT invariant under the combined operation of parity (P) and time reversal (T) in a generalized sense. The EP is the point of transition between both regions. There a spontaneous breaking of PT occurs.

  7. ICESAT Laser Altimeter Pointing, Ranging and Timing Calibration from Integrated Residual Analysis

    NASA Technical Reports Server (NTRS)

    Luthcke, Scott B.; Rowlands, D. D.; Carabajal, C. C.; Harding, D. H.; Bufton, J. L.; Williams, T. A.

    2003-01-01

    On January 12, 2003 the Ice, Cloud and land Elevation Satellite (ICESat) was successfully placed into orbit. The ICESat mission carries the Geoscience Laser Altimeter System (GLAS), which has a primary measurement of short-pulse laser- ranging to the Earth s surface at 1064nm wavelength at a rate of 40 pulses per second. The instrument has collected precise elevation measurements of the ice sheets, sea ice roughness and thickness, ocean and land surface elevations and surface reflectivity. The accurate geolocation of GLAS s surface returns, the spots from which the laser energy reflects on the Earth s surface, is a critical issue in the scientific application of these data. Pointing, ranging, timing and orbit errors must be compensated to accurately geolocate the laser altimeter surface returns. Towards this end, the laser range observations can be fully exploited in an integrated residual analysis to accurately calibrate these geolocation/instrument parameters. ICESat laser altimeter data have been simultaneously processed as direct altimetry from ocean sweeps along with dynamic crossovers in order to calibrate pointing, ranging and timing. The calibration methodology and current calibration results are discussed along with future efforts.

  8. Social behavior in a genetic model of dopamine dysfunction at different neurodevelopmental time points.

    PubMed

    Kabitzke, P A; Simpson, E H; Kandel, E R; Balsam, P D

    2015-09-01

    Impairments in social behavior characterize many neurodevelopmental psychiatric disorders. In fact, the temporal emergence and trajectory of these deficits can define the disorder, specify their treatment and signal their prognosis. The sophistication of mouse models with neurobiological endophenotypes of many aspects of psychiatric diseases has increased in recent years, with the necessity to evaluate social behavior in these models. We adapted an assay for the multimodal characterization of social behavior at different development time points (juvenile, adolescent and adult) in control mice in different social contexts (specifically, different sex pairings). Although social context did not affect social behavior in juvenile mice, it did have an effect on the quantity and type of social interaction as well as ultrasonic vocalizations in both adolescence and adulthood. We compared social development in control mice to a transgenic mouse model of the increase in postsynaptic striatal D2R activity observed in patients with schizophrenia (D2R-OE mice). Genotypic differences in social interactions emerged in adolescence and appeared to become more pronounced in adulthood. That vocalizations emitted from dyads with a D2R-OE subject were negatively correlated with active social behavior while vocalizations from control dyads were positively correlated with both active and passive social behavior also suggest social deficits. These data show that striatal dopamine dysfunction plays an important role in the development of social behavior and mouse models such as the one studied here provide an opportunity for screening potential therapeutics at different developmental time points.

  9. Real-time gesture recognition by learning and selective control of visual interest points.

    PubMed

    Kirishima, Toshiyuki; Sato, Kosuke; Chihara, Kunihiro

    2005-03-01

    For the real-time recognition of unspecified gestures by an arbitrary person, a comprehensive framework is presented that addresses two important problems in gesture recognition systems: selective attention and processing frame rate. To address the first problem, we propose the Quadruple Visual Interest Point Strategy. No assumptions are made with regard to scale or rotation of visual features, which are computed from dynamically changing regions of interest in a given image sequence. In this paper, each of the visual features is referred to as a visual interest point, to which a probability density function is assigned, and the selection is carried out. To address the second problem, we developed a selective control method to equip the recognition system with self-load monitoring and controlling functionality. Through evaluation experiments, we show that our approach provides robust recognition with respect to such factors as type of clothing, type of gesture, extent of motion trajectories, and individual differences in motion characteristics. In order to indicate the real-time performance and utility aspects of our approach, a gesture video system is developed that demonstrates full video-rate interaction with displayed image objects.

  10. Social behavior in a genetic model of dopamine dysfunction at different neurodevelopmental time points

    PubMed Central

    Kabitzke, P. A.; Simpson, E. H.; Kandel, E. R.; Balsam, P. D.

    2016-01-01

    Impairments in social behavior characterize many neurodevelopmental psychiatric disorders. In fact, the temporal emergence and trajectory of these deficits can define the disorder, specify their treatment and signal their prognosis. The sophistication of mouse models with neurobiological endophenotypes of many aspects of psychiatric diseases has increased in recent years, with the necessity to evaluate social behavior in these models. We adapted an assay for the multimodal characterization of social behavior at different development time points (juvenile, adolescent and adult) in control mice in different social contexts (specifically, different sex pairings). Although social context did not affect social behavior in juvenile mice, it did have an effect on the quantity and type of social interaction as well as ultrasonic vocalizations in both adolescence and adulthood. We compared social development in control mice to a transgenic mouse model of the increase in postsynaptic striatal D2R activity observed in patients with schizophrenia (D2R-OE mice). Genotypic differences in social interactions emerged in adolescence and appeared to become more pronounced in adulthood. That vocalizations emitted from dyads with a D2R-OE subject were negatively correlated with active social behavior while vocalizations from control dyads were positively correlated with both active and passive social behavior also suggest social deficits. These data show that striatal dopamine dysfunction plays an important role in the development of social behavior and mouse models such as the one studied here provide an opportunity for screening potential therapeutics at different developmental time points. PMID:26176662

  11. Northern Eurasia Earth Science Partnership Initiative (NEESPI) during the past 12 months: An Overview of the Current Status

    NASA Astrophysics Data System (ADS)

    Groisman, P. Ya.; Kattsov, V. M.; Lawford, R. G.

    2009-04-01

    Four years ago NEESPI was launched with the release of its Science Plan (http://neespi.org). Gradually, the Initiative was joined by numerous international projects launched in EU, Russia, the United States, Canada, Japan, and China. Currently, serving as an umbrella for more than 130 individual research projects (always with an international participation) with a budget close to 15M US dollars annually, the Initiative is in full swing. Several NEESPI Workshops and Sessions at the International Meetings were held since April 2008 when we presented our Status Report to the Assembly the last time. The Workshops strengthen the NEESPI grasp on climatic and hydrological modeling and regional NEESPI components in the Arctic and Eastern Europe. Two volumes of the NEESPI Workshop Proceedings have been published recently (Groisman and Reissell 2009; Groisman and Ivanov 2009), one book (Gutman 2009) is currently in press, and the Initiative progress overview paper is scheduled to appear in the May issue of The Bulletin of the American Meteorological Society. Following the recommendations of the Aspen Global Change Institute Workshop (http://neespi.org/meetings/Aspen2007_Workshop_Report_web.pdf), the NEESPI research focus has begun to shift from organizing improved environmental monitoring of the region and studying of individual environmental processes towards modeling and its ability to project the future state of climate, environment, and societies in the NEESPI domain. Soon after the past EGU Meeting in April 2008, this focus within NEESPI, received an intergovernmental level of support being included in a Memorandum of Understanding for Collaboration in the Fields of Meteorology, Hydrology, and Oceanography between the U.S. National Oceanic and Atmospheric Administration and the Russian Federal Service for Hydrometeorology and Environmental Monitoring. The new focus will require a higher level of integration of observation programs, process studies, and modeling, and

  12. Real-Time Single Frequency Precise Point Positioning Using SBAS Corrections

    PubMed Central

    Li, Liang; Jia, Chun; Zhao, Lin; Cheng, Jianhua; Liu, Jianxu; Ding, Jicheng

    2016-01-01

    Real-time single frequency precise point positioning (PPP) is a promising technique for high-precision navigation with sub-meter or even centimeter-level accuracy because of its convenience and low cost. The navigation performance of single frequency PPP heavily depends on the real-time availability and quality of correction products for satellite orbits and satellite clocks. Satellite-based augmentation system (SBAS) provides the correction products in real-time, but they are intended to be used for wide area differential positioning at 1 meter level precision. By imposing the constraints for ionosphere error, we have developed a real-time single frequency PPP method by sufficiently utilizing SBAS correction products. The proposed PPP method are tested with static and kinematic data, respectively. The static experimental results show that the position accuracy of the proposed PPP method can reach decimeter level, and achieve an improvement of at least 30% when compared with the traditional SBAS method. The positioning convergence of the proposed PPP method can be achieved in 636 epochs at most in static mode. In the kinematic experiment, the position accuracy of the proposed PPP method can be improved by at least 20 cm relative to the SBAS method. Furthermore, it has revealed that the proposed PPP method can achieve decimeter level convergence within 500 s in the kinematic mode. PMID:27517930

  13. Six-month functional recovery of stroke patients: a multi-time-point study

    PubMed Central

    Lee, Kyoung Bo; Lim, Seong Hoon; Kim, Kyung Hoon; Kim, Ki Jeon; Kim, Yang Rae; Chang, Woo Nam; Yeom, Jun Woo; Kim, Young Dong

    2015-01-01

    The aim of this study is to compare the time-course changes in neurologic impairments (trunk control, motor function, sensory, and cognition) and recovery in functional impairments (activity of daily livings and gait) simultaneously from initiating rehabilitation to 6 months after stroke. Consecutive stroke patients were recruited from the department of nervous surgery, and transferred into the department of rehabilitation medicine and continued on treatment during the acute stage. Outcome measures were examined at the initial rehabilitation baseline, 1, 2, and 4 weeks after rehabilitation treatment, and 3, 4, 5, and 6 months after stroke. Patients were assessed using the Trunk Impairment Scale, the Fugl-Meyer Motor and Sensory Assessments for the upper and lower limbs, Mini-Mental State Examination, Functional Ambulation Category, and Modified Barthel Index. Twenty consecutive patients were analyzed in the study with complete assessments. The recovery was relatively rapid during the 4 weeks after treatment (P value ranges from <0.001 to <0.007) and then to a lesser extent decelerated between 3 and 6 months after stroke (P value between <0.001 and 0.080). Statistical comparison by repeated measures analysis showed a significant interaction between time points and measures of all recovery variables (P<0.001). Significant differences in level of impairments and functional recovery were found at the different time points. In comparison with the lower leg and trunk control, the upper arm showed less recovery, with a significant difference. All variables except for leg motor function improved continuously over 6 months after stroke. Nevertheless, this study confirms the importance of the period within 3 months for recovery after stroke, during which most of the recovery occurred, ranging from 48 to 91%. Therefore, intensive treatment targeting motor and sensory functions early after stroke may be beneficial for recovery of impairments and functional performance. PMID

  14. A 12-month clinical investigation with a 24-day regimen containing 15 microg ethinylestradiol plus 60 microg gestodene with respect to hemostasis and cycle control.

    PubMed

    Fruzzetti, F; Genazzani, A R; Ricci, C; De Negri, F; Bersi, C; Carmassi, F

    2001-06-01

    The effects of a 24-day regimen containing 15 microg ethinyl estradiol (EE) plus 60 microg gestodene on cycle control and on hemostasis, were evaluated in 58 healthy women (age 19-47 years). All women received the pill for 12 months. Withdrawal bleeding at every cycle during the tablet-free interval was experienced by 84.5% of the women. The overall incidence of irregular bleedings was 19.3%. Hemostasis was evaluated in 20 women. No changes in plasma fibrinogen concentrations, nor in prothrombin fragment F1+2 were observed. A slight increase in thrombin-antithrombin III complexes was observed after 6 and 12 months of oral contraceptive use. Antithrombin III activity significantly increased after one-year of pill intake. The concentrations of tissue plasminogen activator and plasminogen activator inhibitor, both antigen and activity, did not change. These results show that very low doses of EE, such as 15 microg, do not impair hemostasis in healthy females. However, the reduction for the EE dose is responsible of some of the effects on cycle control.

  15. A 12-month, open-label, comparative study of quetiapine and risperidone in the acute and long-term treatment of schizophrenia.

    PubMed

    Perez, Victor; Cañas, Fernando; Tafalla, Monica

    2008-05-01

    This multicentre, observational, prospective, nonrandomized study compared the effectiveness and tolerability of quetiapine and risperidone in the acute and long-term treatment of schizophrenia in a clinical setting. Patients admitted to an acute unit with schizophrenia, schizophreniform or schizoaffective disorder (DSM-IV), who were prescribed quetiapine or risperidone (3 : 1 ratio) within the first week of treatment, according to the physician's usual practice, were recruited. In total, 492 patients (quetiapine: 367; risperidone: 125) were followed up at weeks 1 and 2, discharge and 6 and 12 months thereafter. Mean doses at 12 months were: quetiapine 718.5 mg/day and risperidone 7.0 mg/day. Efficacy measures (Brief Psychiatric Rating Scale, Clinical Global Impression Severity of Illness and Improvement) indicated similar results for both agents. No difference was found in rehospitalization rate with either drug. In terms of tolerability, orthostatic hypotension was more frequent with quetiapine, but extrapyramidal symptoms and male sexual dysfunction were more frequent with risperidone. In conclusion, quetiapine and risperidone had comparable effectiveness, but there were differences between treatments in their side effect profile.

  16. Mid- and long-term effects of family constellation seminars in a general population sample: 8- and 12-month follow-up.

    PubMed

    Hunger, Christina; Weinhold, Jan; Bornhäuser, Annette; Link, Leoni; Schweitzer, Jochen

    2015-06-01

    In a previous randomized controlled trial (RCT), short-term efficacy of family constellation seminars (FCSs) in a general population sample was demonstrated. In this article, we examined mid- and long-term stability of these effects. Participants were 104 adults (M = 47 years; SD = 9; 84% female) who were part of the intervention group in the original RCT (3-day FCS; 64 active participants and 40 observing participants). FCSs were carried out according to manuals. It was predicted that FCSs would improve psychological functioning (Outcome Questionnaire OQ-45.2) at 8- and 12-month follow-up. Additionally, we assessed the effects of FCSs on psychological distress, motivational incongruence, individuals' experience in their personal social systems, and overall goal attainment. Participants yielded significant improvement in psychological functioning (d = 0.41 at 8-month follow-up, p = .000; d = 0.40 at 12-month follow-up, p = .000). Results were confirmed for psychological distress, motivational incongruence, the participants' experience in their personal social systems, and overall goal attainment. No adverse events were reported. This study provides first evidence for the mid- and long-term efficacy of FCSs in a nonclinical population. The implications of the findings are discussed.

  17. The Pattern of Fatty Acids Displaced by EPA and DHA Following 12 Months Supplementation Varies between Blood Cell and Plasma Fractions.

    PubMed

    Walker, Celia G; West, Annette L; Browning, Lucy M; Madden, Jackie; Gambell, Joanna M; Jebb, Susan A; Calder, Philip C

    2015-08-03

    Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are increased in plasma lipids and blood cell membranes in response to supplementation. Whilst arachidonic acid (AA) is correspondingly decreased, the effect on other fatty acids (FA) is less well described and there may be site-specific differences. In response to 12 months EPA + DHA supplementation in doses equivalent to 0-4 portions of oily fish/week (1 portion: 3.27 g EPA+DHA) multinomial regression analysis was used to identify important FA changes for plasma phosphatidylcholine (PC), cholesteryl ester (CE) and triglyceride (TAG) and for blood mononuclear cells (MNC), red blood cells (RBC) and platelets (PLAT). Dose-dependent increases in EPA + DHA were matched by decreases in several n-6 polyunsaturated fatty acids (PUFA) in PC, CE, RBC and PLAT, but were predominantly compensated for by oleic acid in TAG. Changes were observed for all FA classes in MNC. Consequently the n-6:n-3 PUFA ratio was reduced in a dose-dependent manner in all pools after 12 months (37%-64% of placebo in the four portions group). We conclude that the profile of the FA decreased in exchange for the increase in EPA + DHA following supplementation differs by FA pool with implications for understanding the impact of n-3 PUFA on blood lipid and blood cell biology.

  18. Randomized study on the effect of single-implant versus two-implant retained overdentures on implant loss and muscle activity: a 12-month follow-up report.

    PubMed

    Alqutaibi, A Y; Kaddah, A F; Farouk, M

    2017-02-22

    The objective was to evaluate and compare single- and two-implant retained overdentures for the rehabilitation of the edentulous mandible. Fifty-six edentulous subjects were eligible for inclusion. Using a random sampling system, a single implant or two implants were placed in the mandible. After 3 months, locator attachments were connected to the implants and the denture delivered with the retentive components incorporated in the denture base. Implant failure and muscle activity were evaluated at the 3-, 6-, and 12-month follow-up examinations. The study sample comprised 56 patients (32 male, 24 female), with a mean age of 58.2 years. A total of 84 implants were placed (28 in the single-implant group and 56 in the two-implant group). All patients completed the 12 months of follow-up. No significant differences were found between subjects in the two groups with respect to implant failure. With regard to improvements in muscle activity, the two-implant group showed statistically significant but perhaps not clinically important differences. Single-implant mandibular overdentures may be suggested as an alternative treatment modality for the rehabilitation of edentulous patients who cannot afford the cost of a two-implant overdenture.

  19. Double point source W-phase inversion: Real-time implementation and automated model selection

    USGS Publications Warehouse

    Nealy, Jennifer; Hayes, Gavin

    2015-01-01

    Rapid and accurate characterization of an earthquake source is an extremely important and ever evolving field of research. Within this field, source inversion of the W-phase has recently been shown to be an effective technique, which can be efficiently implemented in real-time. An extension to the W-phase source inversion is presented in which two point sources are derived to better characterize complex earthquakes. A single source inversion followed by a double point source inversion with centroid locations fixed at the single source solution location can be efficiently run as part of earthquake monitoring network operational procedures. In order to determine the most appropriate solution, i.e., whether an earthquake is most appropriately described by a single source or a double source, an Akaike information criterion (AIC) test is performed. Analyses of all earthquakes of magnitude 7.5 and greater occurring since January 2000 were performed with extended analyses of the September 29, 2009 magnitude 8.1 Samoa earthquake and the April 19, 2014 magnitude 7.5 Papua New Guinea earthquake. The AIC test is shown to be able to accurately select the most appropriate model and the selected W-phase inversion is shown to yield reliable solutions that match published analyses of the same events.

  20. Double Point Source W-phase Inversion: Real-time Implementation and Automated Model Selection

    NASA Astrophysics Data System (ADS)

    Nealy, J. L.; Hayes, G. P.

    2015-12-01

    Rapid and accurate characterization of an earthquake source is an extremely important and ever-evolving field of research. Within this field, source inversion of the W-phase has recently been shown to be an effective technique, which can be efficiently implemented in real-time. An extension to the W-phase source inversion is presented in which two point sources are derived to better characterize complex earthquakes. A single source inversion followed by a double point source inversion with centroid locations fixed at the single source solution location can be efficiently run as part of earthquake monitoring network operational procedures. In order to determine the most appropriate solution, i.e., whether an earthquake is most appropriately described by a single source or a double source, an Akaike information criterion (AIC) test is performed. Analyses of all earthquakes of magnitude 7.5 and greater occurring since January 2000 were performed with extended analyses of the September 29, 2009 magnitude 8.1 Samoa and the April 19, 2014 magnitude 7.5 Papua New Guinea earthquakes. The AIC test is shown to be able to accurately select the most appropriate model and the selected W-phase inversion is shown to yield reliable solutions that match previously published analyses of the same events.

  1. Double point source W-phase inversion: Real-time implementation and automated model selection

    NASA Astrophysics Data System (ADS)

    Nealy, Jennifer L.; Hayes, Gavin P.

    2015-12-01

    Rapid and accurate characterization of an earthquake source is an extremely important and ever evolving field of research. Within this field, source inversion of the W-phase has recently been shown to be an effective technique, which can be efficiently implemented in real-time. An extension to the W-phase source inversion is presented in which two point sources are derived to better characterize complex earthquakes. A single source inversion followed by a double point source inversion with centroid locations fixed at the single source solution location can be efficiently run as part of earthquake monitoring network operational procedures. In order to determine the most appropriate solution, i.e., whether an earthquake is most appropriately described by a single source or a double source, an Akaike information criterion (AIC) test is performed. Analyses of all earthquakes of magnitude 7.5 and greater occurring since January 2000 were performed with extended analyses of the September 29, 2009 magnitude 8.1 Samoa earthquake and the April 19, 2014 magnitude 7.5 Papua New Guinea earthquake. The AIC test is shown to be able to accurately select the most appropriate model and the selected W-phase inversion is shown to yield reliable solutions that match published analyses of the same events.

  2. Single-point position and transition defects in continuous time quantum walks

    PubMed Central

    Li, Z. J.; Wang, J. B.

    2015-01-01

    We present a detailed analysis of continuous time quantum walks (CTQW) with both position and transition defects defined at a single point in the line. Analytical solutions of both traveling waves and bound states are obtained, which provide valuable insight into the dynamics of CTQW. The number of bound states is found to be critically dependent on the defect parameters, and the localized probability peaks can be readily obtained by projecting the state vector of CTQW on to these bound states. The interference between two bound states are also observed in the case of a transition defect. The spreading of CTQW probability over the line can be finely tuned by varying the position and transition defect parameters, offering the possibility of precision quantum control of the system. PMID:26323855

  3. Implementation of a Point Algorithm for Real-Time Convex Optimization

    NASA Technical Reports Server (NTRS)

    Acikmese, Behcet; Motaghedi, Shui; Carson, John

    2007-01-01

    The primal-dual interior-point algorithm implemented in G-OPT is a relatively new and efficient way of solving convex optimization problems. Given a prescribed level of accuracy, the convergence to the optimal solution is guaranteed in a predetermined, finite number of iterations. G-OPT Version 1.0 is a flight software implementation written in C. Onboard application of the software enables autonomous, real-time guidance and control that explicitly incorporates mission constraints such as control authority (e.g. maximum thrust limits), hazard avoidance, and fuel limitations. This software can be used in planetary landing missions (Mars pinpoint landing and lunar landing), as well as in proximity operations around small celestial bodies (moons, asteroids, and comets). It also can be used in any spacecraft mission for thrust allocation in six-degrees-of-freedom control.

  4. Undergraduate Consent Form Reading in Relation to Conscientiousness, Procrastination, and the Point-of-Time Effect.

    PubMed

    Theiss, Justin D; Hobbs, William B; Giordano, Peter J; Brunson, Olivia M

    2014-07-01

    Informed consent is central to conducting ethical research with human participants. The present study investigated differences in consent form reading in relation to conscientiousness, procrastination, and the point-of-time (PT) effect among undergraduate participants at a U.S. university. As hypothesized, conscientious participants and those who signed up to participate in a research study more days in advance and for earlier sessions (PT effect) read the consent form more thoroughly. However, procrastination was not related to consent form reading. Most importantly, consent form reading in general was poor, with 80% of participants demonstrating that they had not read the consent form. Conscientious participants were more likely to self-report reading the consent form, irrespective of their measured consent form reading. The article closes with suggestions to improve the process of obtaining informed consent with undergraduate participants.

  5. Travel Time Estimation Using Freeway Point Detector Data Based on Evolving Fuzzy Neural Inference System.

    PubMed

    Tang, Jinjun; Zou, Yajie; Ash, John; Zhang, Shen; Liu, Fang; Wang, Yinhai

    2016-01-01

    Travel time is an important measurement used to evaluate the extent of congestion within road networks. This paper presents a new method to estimate the travel time based on an evolving fuzzy neural inference system. The input variables in the system are traffic flow data (volume, occupancy, and speed) collected from loop detectors located at points both upstream and downstream of a given link, and the output variable is the link travel time. A first order Takagi-Sugeno fuzzy rule set is used to complete the inference. For training the evolving fuzzy neural network (EFNN), two learning processes are proposed: (1) a K-means method is employed to partition input samples into different clusters, and a Gaussian fuzzy membership function is designed for each cluster to measure the membership degree of samples to the cluster centers. As the number of input samples increases, the cluster centers are modified and membership functions are also updated; (2) a weighted recursive least squares estimator is used to optimize the parameters of the linear functions in the Takagi-Sugeno type fuzzy rules. Testing datasets consisting of actual and simulated data are used to test the proposed method. Three common criteria including mean absolute error (MAE), root mean square error (RMSE), and mean absolute relative error (MARE) are utilized to evaluate the estimation performance. Estimation results demonstrate the accuracy and effectiveness of the EFNN method through comparison with existing methods including: multiple linear regression (MLR), instantaneous model (IM), linear model (LM), neural network (NN), and cumulative plots (CP).

  6. Real-time Precise Point Positioning with Ambiguity Resolution for Geosciences

    NASA Astrophysics Data System (ADS)

    Geng, J.; Meng, X.; Teferle, F. N.; Dodson, A. H.; Ge, M.; Shi, C.; Liu, J.

    2009-04-01

    Real-time provision of information on large scale crustal deformation during an earthquake can be crucial in assessing property damage and managing relief operations. Moreover, such a real-time monitoring system may even lead to the accurate prediction of earthquakes in future and help the subsequent studies on the mechanism involved. During the past two decades, Global Positioning System (GPS) measurements have been extensively applied to investigate such processes in the geosciences. Precise point positioning (PPP) using GPS based on single stations can achieve comparable accuracies to conventional relative positioning, when precise satellite orbits and clocks, and Earth rotation products are used. Thus, PPP does not need any reference stations to achieve high positioning accuracy, e.g. at the millimetre level in static and centimetre level in kinematic applications. This has both technical and economic advantages and may be the only feasible option in some specific applications such as Tsunami early warning systems. However, unlike relative positioning, PPP suffers from unresolved integer ambiguities, which prevented further accuracy improvements within short observation periods or in real-time. On account of the great potential of PPP, we developed a prototype real-time PPP system which also employs ambiguity resolution at a single station. This development is based on the PANDA (Positioning And Navigation Data Analyst) software, which was originally developed at Wuhan University in China, and has been significantly refined by the authors. To assess this system, about 30 stations from the EUREF Permanent Network Internet Protocol (EUREF-IP) pilot project are used to produce the real-time satellite clocks, with satellite orbits and Earth rotation parameters (ERP) fixed to the predicted part of the IGS (International GNSS Service) ultra-rapid products. This is followed by the estimation of the uncalibrated hardware delays (UHD), which are crucial in resolving the

  7. Impact of telavancin on prothrombin time and activated partial thromboplastin time as determined using point-of-care coagulometers.

    PubMed

    Ero, Michael P; Harvey, Nathaniel R; Harbert, Jack L; Janc, James W; Chin, Kay H; Barriere, Steven L

    2014-01-01

    Telavancin is approved in the United States, Canada, and Europe (At the time of submission, the telavancin European marketing authorization for nosocomial pneumonia was suspended until Theravance provides evidence of a new European Medicines Agency approved supplier) as an antibiotic to treat certain Gram-positive bacterial skin infections. Telavancin has been shown to prolong plasmatic prothrombin (PT) and activated partial thromboplastin (aPTT) clotting times in clinical diagnostic lab-based assays. In this study, we evaluated the potential for telavancin to prolong whole blood PT/International Normalized Ratio (INR) and aPTT tests on point-of-care (POC) instruments. Whole blood collected from 8 healthy subjects was supplemented with telavancin to final concentrations of 0, 10, 20, and 100 μg/ml. Final concentrations were selected to match trough, twice trough, and peak plasma levels following the approved 10 mg/kg dose. Four widely employed POC coagulation instruments were chosen to be representative of the POC platforms currently in use.. These systems were the Roche Coaguchek XS, the Abbott iSTAT, the ITC Hemochron SIG+, and the Alere INRatio2 POC devices. The PT/INR measured by the Coaguchek XS showed the greatest sensitivity to the presence of telavancin. The PT/INR measured by the Hemochron SIG+ and iSTAT were sensitive to telavancin but to a lesser extent. The INRatio2 was the least sensitive to the presence of telavancin when testing the whole blood PT/INR. Only the Hemochron SIG+ device was capable of measuring aPTT and showed a concentration-dependent increase in aPTT. This study supports the current recommendation that PT and aPTT monitoring be conducted immediately to the next dose of telavancin when coagulation parameters are tested using POC instrumentation.

  8. Factor Analysis of Changes in Hemoglobin A1c After 12 Months of Sitagliptin Therapy in Patients With Type 2 Diabetes

    PubMed Central

    Yuasa, Shouhei; Sato, Kazuyoshi; Takai, Masahiko; Ishikawa, Masashi; Umezawa, Shinichi; Kubota, Akira; Maeda, Hajime; Kanamori, Akira; Miyakawa, Masaaki; Tanaka, Yasushi; Terauchi, Yasuo; Matsuba, Ikuro

    2016-01-01

    Background Sitagliptin, a dipeptidyl peptidase-4 inhibitor, is an effective oral antidiabetic agent as both monotherapy and when combined with insulin. Data from three observational studies performed in patients with type 2 diabetes receiving sitagliptin therapy in the routine clinical setting were integrated to conduct factor analysis of the changes in hemoglobin A1c (HbA1c), body weight, and estimated glomerular filtration rate (eGFR) over 12 months. Methods Among patients with type 2 diabetes attending medical institutions affiliated with Kanagawa Physicians Association, those using sitagliptin were followed for 1 year. In the ASSET-K and ASSIST-K studies, patients were managed by diabetologists, while they were managed by non-diabetologists in the ATTEST-K study. Patients were not administered insulin in ASSET-K, whereas insulin was administered in ASSIST-K. HbA1c (National Glycohemoglobin Standardization Program), blood glucose (fasting/postprandial), body weight, and renal function (serum creatinine and eGFR) were the efficacy endpoints. Factor analysis was performed by analysis of variance using the magnitude of the change in HbA1c, body weight, and eGFR after 12 months of sitagliptin therapy as response variables, and the study, sex, and age as explanatory variables. Results Of 1,327 patients registered in ASSET-K (diabetologists/without insulin), 1,167 patients in ASSIST-K (diabetologists/with insulin), and 530 patients in ATTEST-K (non-diabetologists), statistical analysis was carried out on 1,074, 854, and 411 patients, respectively. There were significant inter-study differences in patient characteristics (complications, duration of diabetes, and baseline HbA1c), the sitagliptin dose, and the use of other antidiabetic agents. HbA1c decreased significantly in all three studies. According to factor analysis, the magnitude of the change in HbA1c over 12 months showed significant inter-study differences and was also significantly influenced by the age

  9. Terahertz time domain interferometry of a SIS tunnel junction and a quantum point contact

    SciTech Connect

    Karadi, Chandu

    1995-09-01

    The author has applied the Terahertz Time Domain Interferometric (THz-TDI) technique to probe the ultrafast dynamic response of a Superconducting-Insulating-Superconducting (SIS) tunnel junction and a Quantum Point Contact (QPC). The THz-TDI technique involves monitoring changes in the dc current induced by interfering two picosecond electrical pulses on the junction as a function of time delay between them. Measurements of the response of the Nb/AlOxNb SIS tunnel junction from 75--200 GHz are in full agreement with the linear theory for photon-assisted tunneling. Likewise, measurements of the induced current in a QPC as a function of source-drain voltage, gate voltage, frequency, and magnetic field also show strong evidence for photon-assisted transport. These experiments together demonstrate the general applicability of the THz-TDI technique to the characterization of the dynamic response of any micron or nanometer scale device that exhibits a non-linear I-V characteristic.

  10. Two Point Space-Time Correlation of Density Fluctuations Measured in High Velocity Free Jets

    NASA Technical Reports Server (NTRS)

    Panda, Jayanta

    2006-01-01

    Two-point space-time correlations of air density fluctuations in unheated, fully-expanded free jets at Mach numbers M(sub j) = 0.95, 1.4, and 1.8 were measured using a Rayleigh scattering based diagnostic technique. The molecular scattered light from two small probe volumes of 1.03 mm length was measured for a completely non-intrusive means of determining the turbulent density fluctuations. The time series of density fluctuations were analyzed to estimate the integral length scale L in a moving frame of reference and the convective Mach number M(sub c) at different narrow Strouhal frequency (St) bands. It was observed that M(sub c) and the normalized moving frame length scale L*St/D, where D is the jet diameter, increased with Strouhal frequency before leveling off at the highest resolved frequency. Significant differences were observed between data obtained from the lip shear layer and the centerline of the jet. The wave number frequency transform of the correlation data demonstrated progressive increase in the radiative part of turbulence fluctuations with increasing jet Mach number.

  11. Travel Time Estimation Using Freeway Point Detector Data Based on Evolving Fuzzy Neural Inference System

    PubMed Central

    Tang, Jinjun; Zou, Yajie; Ash, John; Zhang, Shen; Liu, Fang; Wang, Yinhai

    2016-01-01

    Travel time is an important measurement used to evaluate the extent of congestion within road networks. This paper presents a new method to estimate the travel time based on an evolving fuzzy neural inference system. The input variables in the system are traffic flow data (volume, occupancy, and speed) collected from loop detectors located at points both upstream and downstream of a given link, and the output variable is the link travel time. A first order Takagi-Sugeno fuzzy rule set is used to complete the inference. For training the evolving fuzzy neural network (EFNN), two learning processes are proposed: (1) a K-means method is employed to partition input samples into different clusters, and a Gaussian fuzzy membership function is designed for each cluster to measure the membership degree of samples to the cluster centers. As the number of input samples increases, the cluster centers are modified and membership functions are also updated; (2) a weighted recursive least squares estimator is used to optimize the parameters of the linear functions in the Takagi-Sugeno type fuzzy rules. Testing datasets consisting of actual and simulated data are used to test the proposed method. Three common criteria including mean absolute error (MAE), root mean square error (RMSE), and mean absolute relative error (MARE) are utilized to evaluate the estimation performance. Estimation results demonstrate the accuracy and effectiveness of the EFNN method through comparison with existing methods including: multiple linear regression (MLR), instantaneous model (IM), linear model (LM), neural network (NN), and cumulative plots (CP). PMID:26829639

  12. Integrity monitoring in real-time precise point positioning in the presence of ionospheric disturbances

    NASA Astrophysics Data System (ADS)

    Wezka, K.; Galas, R.

    2013-12-01

    Ionospheric disturbances are characterized as fast and random variability in the ionosphere. Those phenomena are difficult to predict, detect and model. Occurrence of some strong ionospheric disturbances can cause, inter alia degradation and interruption of GNSS signals. Therefore they are especially harmful for real-time applications, as for example Precise Point Positioning (PPP) in real time, where one of the most important requirements is to ensure the high level of reliability. In such applications verification and confirmation of a high trust degree towards the estimated coordinates is a very critical issue. In one of the previous papers (K. Wezka, 2012 -Identification of system performance parameters and their usability) two sets of parameters have been proposed for enhance reliability of the PPP. The first one for data quality control (QC) of the raw GNSS observations and the second one for examination of the quality, robustness and performance of various processing approaches (strategies). To the second group the following parameters has been proposed: accuracy, precision, availability, integrity and convergence time. In consideration of perturbation of GNSS signal resulting from sudden ionospheric disturbances, one of the most important demands is effective autonomous integrity monitoring. The poster presents first preliminary results of the applicability of the proposed parameters in order to ensure the high level of reliability/integrity of GNSS observations and positioning results under the presence of strong ionospheric anomalies. The data-set from continuously operated GNSS station located at high latitude, where ionospheric disturbances occur more frequently, were used for the analysis. Various selected Receiver Autonomous Integrity Monitoring (RAIM) approaches for quality control of the GNSS observables are applied to the data sets recorded under different (low/quite and high) ionospheric activities. Based on those analyses the usability of the

  13. Integrating a Career Planning and Development Program into the Baccalaureate Nursing Curriculum. Part II. Outcomes for New Graduate Nurses 12 Months Post-Graduation.

    PubMed

    Waddell, Janice; Spalding, Karen; Navarro, Justine; Jancar, Sonya; Canizares, Genevieve

    2015-11-28

    New graduate nurses' (NGNs) transition into the nursing workforce is characterized as stressful and challenging. Consequently, a high percentage of them leave their first place of employment or the profession entirely within one year of graduation. Nursing literature describes this complicated shift from student to registered nurse, however, limited attention has focused on strategies that could be implemented during students' academic programs to prepare them for this difficult transition period. Therefore, a longitudinal intervention study was conducted to examine the influence of a career planning and development (CPD) program on the development of career resilience in baccalaureate nursing students and at 12 months post-graduation (NGN). The findings support including structured and progressive curriculum-based CPD opportunities in academic programs, not only for the positive outcomes that accrue to students, but also because of the benefits they extend to NGNs as they make the transition to their first professional nursing role.

  14. Neural correlates of face processing in etiologically-distinct 12-month-old infants at high-risk of autism spectrum disorder.

    PubMed

    Guy, Maggie W; Richards, John E; Tonnsen, Bridgette L; Roberts, Jane E

    2017-03-16

    Neural correlates of face processing were examined in 12-month-olds at high-risk for autism spectrum disorder (ASD), including 21 siblings of children with ASD (ASIBs) and 15 infants with fragile X syndrome (FXS), as well as 21 low-risk (LR) controls. Event-related potentials were recorded to familiar and novel face and toy stimuli. All infants demonstrated greater N290 amplitude to faces than toys. At the Nc component, LR infants showed greater amplitude to novel stimuli than to their mother's face and own toy, whereas infants with FXS showed the opposite pattern of responses and ASIBs did not differentiate based on familiarity. These results reflect developing face specialization across high- and low-risk infants and reveal neural patterns that distinguish between groups at high-risk for ASD.

  15. Regulatory competence and social communication in term and preterm infants at 12 months corrected age. Results from a randomized controlled trial.

    PubMed

    Olafsen, Kåre S; Rønning, John A; Handegård, Bjørn Helge; Ulvund, Stein Erik; Dahl, Lauritz Bredrup; Kaaresen, Per Ivar

    2012-02-01

    Temperamental regulatory competence and social communication in term and preterm infants at 12 months corrected age was studied in a randomized controlled intervention trial aimed at enhancing maternal sensitive responsiveness. Surviving infants <2000 g from a geographically defined area were randomized to an intervention (71) or a control group (69), and compared with term infants (74). The intervention was a modified version of the "Mother-Infant Transaction Program". Regulatory competence was measured with the Infant Behavior Questionnaire, and social communication with the Early Social Communication Scales. Preterm intervention infants with low regulatory competence had higher responding to joint attention than preterm control infants. A sensitizing intervention may moderate the association between temperament and social communication, and thus allow an alternative functional outlet for preterm infants low in regulatory competence. The finding may have implications for conceptualizations of the role of early sensitizing interventions in promoting important developmental outcomes for premature infants.

  16. Efficacy and safety of concentration-controlled everolimus with reduced-dose cyclosporine in Japanese de novo renal transplant patients: 12-month results

    PubMed Central

    2013-01-01

    Background No study to date has evaluated the efficacy and safety of everolimus with reduced-exposure cyclosporine in Japanese de-novo renal transplant (RTx) patients. Methods This 12-month, multicenter, open-label study randomized (1:1) 122 Japanese de-novo RTx patients to either an everolimus regimen (1.5 mg/day starting dose (target trough: 3 to 8 ng/ml) + reduced-dose cyclosporine) or a mycophenolate mofetil (MMF) regimen (2 g/day + standard dose cyclosporine). All patients received basiliximab and corticosteroids. Key endpoints at month 12 were composite efficacy failure (treated biopsy-proven acute rejection, graft loss, death, or loss to follow-up) and renal function (estimated glomerular filtration rate; Modification of Diet in Renal Disease-4). Results Clear cyclosporine exposure reduction was achieved in the everolimus group throughout the study (52% reduction at month 12). Month 12 efficacy failure rates showed everolimus 1.5 mg to be non-inferior to MMF (11.5% vs. 11.5%). The median estimated glomerular filtration rate at month 12 was 58.00 ml/minute/1.73 m2 in the everolimus group versus 55.25 ml/minute/1.73 m2 in the MMF group (P = 0.063). Overall, the incidence of adverse events was comparable between the groups with some differences in line with the known safety profile of the treatments. The everolimus group had a higher incidence of wound healing events and edema, whereas a higher rate of cytomegalovirus infections was reported in the MMF group. Conclusions This study confirmed the efficacy of everolimus 1.5 mg/day (target trough: 3 to 8 ng/ml) in Japanese RTx patients for preventing acute rejection, while allowing for substantial cyclosporine sparing. Renal function and safety findings were comparable with previous reports from other RTx populations. Trial registration ClinicalTrials.gov number: NCT00658320 PMID:23866828

  17. Significance of Cardiac Rehabilitation on Visit-to-Visit Variability of Blood Pressure in Patients With Cardiovascular Disease in a 12-Month Follow-Up

    PubMed Central

    Ishida, Toshihisa; Miura, Shin-ichiro; Fujimi, Kanta; Futami, Makito; Ueda, Yoko; Ueda, Takashi; Arimura, Tadaaki; Koyoshi, Rie; Shiga, Yuhei; Kitajima, Ken; Saku, Keijiro

    2017-01-01

    Background Visit-to-visit variability (VVV) in blood pressure (BP) has been shown to be a strong predictor of cardiovascular disease (CVD). However, the long-term effect of comprehensive cardiac rehabilitation (CR) with exercise training on VVV in BP has not yet been established. Therefore, we evaluated the long-term effects of CR on VVV in BP in patients with CVD. Methods Twenty-two CVD patients in a 12-month CR program who had at least six clinic visits per month to measure BP were enrolled. We determined VVV in BP expressed as the standard deviation of average BP every month for 12 months. Results The mean age was 70 ± 8 years and the body mass index was 24.4 ± 4.9 kg/m2. In addition, the percentage (%) of males, % heart failure and % ischemic heart disease were 77%, 55% and 27%, respectively. Patients who had uncontrolled BP at baseline showed a significant reduction of both systolic BP (SBP) and diastolic BP (DBP). VVV in SBP in the first month was significantly less than that in the last month, although there was no difference in VVV in DBP. Patients were divided into larger (L-) and smaller (S-) VVV in SBP groups according to the average value of VVV in SBP as a cut-off. The L-VVV in SBP group, but not the S-VVV in SBP group, showed a significant reduction of VVV in SBP. Conclusion Comprehensive CR may improve VVV in SBP in CVD patients who have larger VVV in SBP. PMID:28270895

  18. Dyadic co-regulation, affective intensity and infant's development at 12 months: A comparison among extremely preterm and full-term dyads.

    PubMed

    Sansavini, Alessandra; Zavagli, Veronica; Guarini, Annalisa; Savini, Silvia; Alessandroni, Rosina; Faldella, Giacomo

    2015-08-01

    Extremely low gestational age children (ELGA, born below 28 weeks of GA) represent the most at-risk preterm group in terms of survival, developmental sequelae and rates of impairment and cognitive delays. However, the impact of an extremely preterm birth on mother-infant co-regulation and affective intensity which may affect early infant's development has not been investigated. Based on a relational dynamic system approach, our study aimed to investigate the quality of co-regulation and affective intensity during spontaneous play interaction in 20 mother-infant ELGA dyads compared to 20 full-term (FT) dyads at 12 months (corrected age for ELGA infants). Relationships between the quality of dyadic co-regulation and the infant's level of cognitive, motor and language development were also investigated. The quality of dyadic co-regulation was assessed using the Revised Relational Coding System (R-RCS) by Fogel et al. (2003), the mothers' and infants' affective intensity was coded using a coding system by Lunkenheimer, Olson, Hollenstein, Sameroff, and Winter (2011). Infants' development was assessed using the Bayley Scales (BSID-III, 2006). With respect to FT dyads, ELGA dyads were characterised by less frequent symmetric and more frequent unilateral co-regulation patterns and by less positive and more neutral affective intensity of both infants and mothers. Cognitive, motor and language scores were lower in ELGA infants than in FT infants. Symmetrical co-regulation was related to motor scores in ELGA infants, and to cognitive scores in FT infants. Our findings contribute to the literature by demonstrating the difficulties of ELGA mother-infant dyads at 12 months in sharing the symmetric co-regulation and positive affective intensity and how symmetric co-regulation is strictly related to motor development in ELGA infants. Based on these findings, intervention programmes to foster joint attention, active involvement and positive affective intensity in ELGA dyads and

  19. Long Term Effects on Risk Factors for Cardiovascular Disease after 12-Months of Aerobic Exercise Intervention - A Worksite RCT among Cleaners

    PubMed Central

    Korshøj, Mette; Lidegaard, Mark; Krustrup, Peter; Jørgensen, Marie Birk; Søgaard, Karen; Holtermann, Andreas

    2016-01-01

    Objectives Occupational groups exposed to high occupational physical activity have an increased risk for cardiovascular disease (CVD). This may be explained by the high relative aerobic workload. Enhanced cardiorespiratory fitness reduces the relative aerobic workload. Thus, the aim was to evaluate the 12-months effects of worksite aerobic exercise on risk factors for CVD among cleaners. Methods One hundred and sixteen cleaners aged 18–65 years were randomized to a group performing aerobic exercise and a reference group receiving lectures. Outcomes were collected at baseline and after 12-months. A repeated measures 2×2 multi-adjusted mixed-model design was applied to compare the between-group differences using intention-to-treat analysis. Results Between-group differences (p<0.05) were found favouring the aerobic exercise group: cardiorespiratory fitness 2.15 (SE 1.03) mlO2/min/kg, aerobic workload -2.15 (SE 1.06) %HRR, resting HR -5.31 (SE 1.61) beats/min, high sensitive C-reactive protein -0.65 (SE 0.24) μg/ml. The blood pressure was unaltered. Stratified analyses on relative aerobic workload at baseline revealed that those with relative aerobic workloads ≥30% of HRR seems to impose a notable adverse effect on resting and ambulatory blood pressure. Conclusion This long-term worksite aerobic exercise intervention among cleaners led to several beneficial effects, but also potential adverse effects among those with high relative aerobic workloads. Trial Registration Controlled-Trials.com ISRCTN86682076 PMID:27513932

  20. Bimatoprost 0.01% vs bimatoprost 0.03%: a 12-month prospective trial of clinical and in vivo confocal microscopy in glaucoma patients

    PubMed Central

    Figus, M; Nardi, M; Piaggi, P; Sartini, M; Guidi, G; Martini, L; Lazzeri, S

    2014-01-01

    Purpose To evaluate the safety of two commercially available formulations of bimatoprost eye drops: 0.03 and 0.01% ophthalmic solutions. Methods This was a randomized, prospective, parallel-group, open-label, cohort study. A total of 60 glaucoma patients (60 eyes) under bimatoprost 0.03% monotherapy since at least 1 year were enrolled. Selected patients were randomized to receive a single drop of bimatoprost 0.01% (n=30) or bimatoprost 0.03% (n=30) ophthalmic solutions for 12 months. Statistical analysis was performed using paired t-test and repeated measures ANOVA test. Results Global clinical score (the sum of pruritus, stinging/burning, blurred vision, sticky eye sensation, eye dryness sensation, and foreign body sensation) significantly decreased in the bimatoprost 0.01% group from baseline 4.7±3.8 to 2.9±2.3 (P<0.001) and 2.5±2.0 (P<0.001) at 6-month and 12-month follow-ups, respectively. Comparison between groups showed differences at both follow-up visits (P=0.003 and P<0.001, respectively). In vivo confocal microscopy revealed a significant increase in goblet cell density in the bimatoprost 0.01% group compared with the bimatoprost 0.03% group (P<0.001 at both follow-up visits). All functional parameters and conjunctival hyperemia improved in the bimatoprost 0.01% group at each follow-up visit (P<0.05) and in comparison with bimatoprost 0.03% (P<0.05). Conclusion The results of this trial suggest that bimatoprost 0.01% eye drops seem to decrease the ocular discomfort with respect to bimatoprost 0.03% eye drops. PMID:24434659

  1. The B-cell response to a primary and booster course of MenACWY-CRM₁₉₇ vaccine administered at 2, 4 and 12 months of age.

    PubMed

    Blanchard-Rohner, Geraldine; Snape, Matthew D; Kelly, Dominic F; O'Connor, Daniel; John, Tessa; Clutterbuck, Elizabeth A; Ohene-Kena, Brigitte; Klinger, Chaam L; Odrljin, Tatjana; Pollard, Andrew J

    2013-05-07

    A quadrivalent meningococcal vaccine conjugated to CRM197 (MenACWY-CRM197) is immunogenic in young infants. We assessed the memory B-cell and antibody responses after a primary and booster course of MenACWY-CRM197 in children. At 5 months of age, following primary immunisation, serogroup-specific memory B-cells were detectable in fewer than 25% of children, although protective antibody titres (hSBA ≥ 4) were detectable in 69% of children against serogroup A and more than 95% against the other serogroups. At 12 months, before booster immunisation the percentages with hSBA ≥ 4 were 5% for serogroup A, and between 44 and 70% for the other serogroups. One month after booster immunisation with MenACWY-CRM197 over 50% of children had detectable memory B-cells, and 91% had hSBA ≥ 4 against serogroup A and more than 99% against the other serogroups. These data show that few antigen-specific anticapsular memory B-cells can be detected after two-doses priming with MenACWY-CRM197. For MenC and CRM197, the antigens with the highest number of B-cells at 5 months, there was a definite (p ≤0 .02) but weak correlation with antibody persistence at 12 months. Although previous studies suggest that measuring memory B-cell responses after priming immunisations in infancy can be used to predict antibody persistence and memory responses, this may not be suitable for all antigens in young children.

  2. Real Time Precise Point Positioning: Preliminary Results for the Brazilian Region

    NASA Astrophysics Data System (ADS)

    Marques, Haroldo; Monico, João.; Hirokazu Shimabukuro, Milton; Aquino, Marcio

    2010-05-01

    GNSS positioning can be carried out in relative or absolute approach. In the last years, more attention has been driven to the real time precise point positioning (PPP). To achieve centimeter accuracy with this method in real time it is necessary to have available the satellites precise coordinates as well as satellites clocks corrections. The coordinates can be used from the predicted IGU ephemeris, but the satellites clocks must be estimated in a real time. It can be made from a GNSS network as can be seen from EUREF Permanent Network. The infra-structure to realize the PPP in real time is being available in Brazil through the Brazilian Continuous Monitoring Network (RBMC) together with the Sao Paulo State GNSS network which are transmitting GNSS data using NTRIP (Networked Transport of RTCM via Internet Protocol) caster. Based on this information it was proposed a PhD thesis in the Univ. Estadual Paulista (UNESP) aiming to investigate and develop the methodology to estimate the satellites clocks and realize PPP in real time. Then, software is being developed to process GNSS data in the real time PPP mode. A preliminary version of the software was called PPP_RT and is able to process GNSS code and phase data using precise ephemeris and satellites clocks. The PPP processing can be accomplished considering the absolute satellite antenna Phase Center Variation (PCV), Ocean Tide Loading (OTL), Earth Body Tide, among others. The first order ionospheric effects can be eliminated or minimized by ion-free combination or parameterized in the receiver-satellite direction using a stochastic process, e.g. random walk or white noise. In the case of ionosphere estimation, a pseudo-observable is introduced in the mathematical model for each satellite and the initial value can be computed from Klobuchar model or from Global Ionospheric Map (GIM). The adjustment is realized in the recursive mode and the DIA (Detection Identification and Adaptation) is used for quality control. In

  3. The Way Point Planning Tool: Real Time Flight Planning for Airborne Science

    NASA Technical Reports Server (NTRS)

    He, Yubin; Blakeslee, Richard; Goodman, Michael; Hall, John

    2012-01-01

    Airborne real time observation are a major component of NASA's Earth Science research and satellite ground validation studies. For mission scientist, planning a research aircraft mission within the context of meeting the science objective is a complex task because it requires real time situational awareness of the weather conditions that affect the aircraft track. Multiple aircraft are often involved in the NASA field campaigns the coordination of the aircraft with satellite overpasses, other airplanes and the constantly evolving dynamic weather conditions often determine the success of the campaign. A flight planning tool is needed to provide situational awareness information to the mission scientist and help them plan and modify the flight tracks successfully. Scientists at the University of Alabama Huntsville and the NASA Marshal Space Flight Center developed the Waypoint Planning Tool (WPT), an interactive software tool that enables scientist to develop their own flight plans (also known as waypoints), with point and click mouse capabilities on a digital map filled with time raster and vector data. The development of this Waypoint Planning Tool demonstrates the significance of mission support in responding to the challenges presented during NASA field campaigns. Analyses during and after each campaign helped identify both issues and new requirements, initiating the next wave of development. Currently the Waypoint Planning Tool has gone through three rounds of development and analysis processes. The development of this waypoint tool is directly affected by the technology advances on GIS/Mapping technologies. From the standalone Google Earth application and simple KML functionalities to the Google Earth Plugin and Java Web Start/Applet on web platform, as well as to the rising open source GIS tools with new JavaScript frameworks, the Waypoint planning Tool has entered its third phase of technology advancement. The newly innovated, cross-platform, modular designed

  4. Quantum percolation and transition point of a directed discrete-time quantum walk

    PubMed Central

    Chandrashekar, C. M.; Busch, Th.

    2014-01-01

    Quantum percolation describes the problem of a quantum particle moving through a disordered system. While certain similarities to classical percolation exist, the quantum case has additional complexity due to the possibility of Anderson localisation. Here, we consider a directed discrete-time quantum walk as a model to study quantum percolation of a two-state particle on a two-dimensional lattice. Using numerical analysis we determine the fraction of connected edges required (transition point) in the lattice for the two-state particle to percolate with finite (non-zero) probability for three fundamental lattice geometries, finite square lattice, honeycomb lattice, and nanotube structure and show that it tends towards unity for increasing lattice sizes. To support the numerical results we also use a continuum approximation to analytically derive the expression for the percolation probability for the case of the square lattice and show that it agrees with the numerically obtained results for the discrete case. Beyond the fundamental interest to understand the dynamics of a two-state particle on a lattice (network) with disconnected vertices, our study has the potential to shed light on the transport dynamics in various quantum condensed matter systems and the construction of quantum information processing and communication protocols. PMID:25301394

  5. Brachytherapy in cancer cervix: Time to move ahead from point A?

    PubMed Central

    Srivastava, Anurita; Datta, Niloy Ranjan

    2014-01-01

    Brachytherapy forms an integral part of the radiation therapy in cancer cervix. The dose prescription for intracavitary brachytherapy (ICBT) in cancer cervix is based on Tod and Meredith’s point A and has been in practice since 1938. This was proposed at a time when accessibility to imaging technology and dose computation facilities was limited. The concept has been in practice worldwide for more than half a century and has been the fulcrum of all ICBT treatments, strategies and outcome measures. The method is simple and can be adapted by all centres practicing ICBT in cancer cervix. However, with the widespread availability of imaging techniques, clinical use of different dose-rates, availability of a host of applicators fabricated with image compatible materials, radiobiological implications of dose equivalence and its impact on tumour and organs at risk; more and more weight is being laid down on individualised image based brachytherapy. Thus, computed tomography, magnetic-resonance imaging and even positron emission computerized tomography along with brachytherapy treatment planning system are being increasingly adopted with promising outcomes. The present article reviews the evolution of dose prescription concepts in ICBT in cancer cervix and brings forward the need for image based brachytherapy to evaluate clinical outcomes. As is evident, a gradual transition from “point” based brachytherapy to “profile” based image guided brachytherapy is gaining widespread acceptance for dose prescription, reporting and outcome evaluation in the clinical practice of ICBT in cancer cervix. PMID:25302176

  6. Bayesian inference of whole-organ deformation dynamics from limited space-time point data.

    PubMed

    Morishita, Yoshihiro; Suzuki, Takayuki

    2014-09-21

    To understand the morphogenetic mechanisms of organ development and regeneration, it is essential to clarify the inter-hierarchical relationship between microscopic, molecular/cellular activities and organ-level tissue deformation dynamics. While the former have been studied for several decades, the latter - macroscopic geometrical information about physical tissue deformation - is often missing, especially for many vertebrates. This is mainly because live recording of detailed cell behaviors in whole tissues during vertebrate organogenesis is technically difficult. In this study, we have developed a novel method that combines snapshot lineage tracing with Bayesian statistical estimation to construct whole-organ deformation maps from landmark data on limited numbers of space-time points. Following the validation of the method using artificially generated data sets, we applied it to the analysis of tissue deformation dynamics in chick limb development. A quantitative tissue deformation map for St.23-St.24 has been constructed, and its precision has been proven by evaluating its predictive performance. Geometrical analyses of the map have revealed a spatially heterogeneous volume growth pattern that is consistent with the expression pattern of a major morphogen and anisotropic tissue deformation along an axis. Thus, our method enables deformation dynamics analysis in organogenesis using practical lineage marking techniques.

  7. Improving BeiDou real-time precise point positioning with numerical weather models

    NASA Astrophysics Data System (ADS)

    Lu, Cuixian; Li, Xingxing; Zus, Florian; Heinkelmann, Robert; Dick, Galina; Ge, Maorong; Wickert, Jens; Schuh, Harald

    2017-02-01

    Precise positioning with the current Chinese BeiDou Navigation Satellite System is proven to be of comparable accuracy to the Global Positioning System, which is at centimeter level for the horizontal components and sub-decimeter level for the vertical component. But the BeiDou precise point positioning (PPP) shows its limitation in requiring a relatively long convergence time. In this study, we develop a numerical weather model (NWM) augmented PPP processing algorithm to improve BeiDou precise positioning. Tropospheric delay parameters, i.e., zenith delays, mapping functions, and horizontal delay gradients, derived from short-range forecasts from the Global Forecast System of the National Centers for Environmental Prediction (NCEP) are applied into BeiDou real-time PPP. Observational data from stations that are capable of tracking the BeiDou constellation from the International GNSS Service (IGS) Multi-GNSS Experiments network are processed, with the introduced NWM-augmented PPP and the standard PPP processing. The accuracy of tropospheric delays derived from NCEP is assessed against with the IGS final tropospheric delay products. The positioning results show that an improvement in convergence time up to 60.0 and 66.7% for the east and vertical components, respectively, can be achieved with the NWM-augmented PPP solution compared to the standard PPP solutions, while only slight improvement in the solution convergence can be found for the north component. A positioning accuracy of 5.7 and 5.9 cm for the east component is achieved with the standard PPP that estimates gradients and the one that estimates no gradients, respectively, in comparison to 3.5 cm of the NWM-augmented PPP, showing an improvement of 38.6 and 40.1%. Compared to the accuracy of 3.7 and 4.1 cm for the north component derived from the two standard PPP solutions, the one of the NWM-augmented PPP solution is improved to 2.0 cm, by about 45.9 and 51.2%. The positioning accuracy for the up component

  8. Ultra-Wideband Time-Difference-of-Arrival Two-Point-Tracking System

    NASA Technical Reports Server (NTRS)

    Ni, Jianjun David; Arndt, Dickey; Ngo, Phong; Phan, Chau; Dekome, Kent; Dusl, John

    2009-01-01

    A UWB TDOA Two-Point-Tracking System has been conceived and developed at JSC. This system can provide sub-inch tracking capability of two points on one target. This capability can be applied to guide a docking process in a 2D space. Lab tests demonstrate the feasibility of this technology.

  9. Common conversion point stacking of receiver functions versus passive source reverse time migration and wavefield regularization

    NASA Astrophysics Data System (ADS)

    Shang, Xuefeng; de Hoop, Maarten V.; van der Hilst, Robert D.

    2017-02-01

    We demonstrate with synthetic and field data that with sufficiently dense sampling wave-equation based methods such as reverse time migration (RTM), implicitly forming array receiver functions (ARFs), perform better resolution-wise than migration of common conversion point (CCP) stacks of traditional receiver functions. However, even with modern array deployments the sampling requirement is typically not met for teleseismic (earthquake) data. To enable RTM imaging with sparsely (and irregularly) sampled wavefields at the surface we use an intermediate reconstruction based on sparsity promoting optimization using a curvelet (or wave packet) representation of the data, as an important and necessary preprocessing step. To suppress artifacts, the curvelet coefficients are constrained to represent the range of known directions present in the data. We show that our proposed preprocessing procedure (which may be viewed as generating 'missing' traces) can produce artifact-free data for RTM even if only 20% of the necessary data is available in the original data set. With synthetic data we also demonstrate that if sampling criteria are not met, CCP can produce results that are superior over wave-equation methods such as RTM. As a proof-of-concept with field data we image the structure of the crust beneath the Himalayas with passive-source RTM of teleseismic data from the Hi-CLIMB project (Nábělek et al., 2005). For Hi-CLIMB data the CCP and RTM results are similar because sampling is still too sparse for RTM and because the structure is simple enough for successful CCP. Both results are both improved by wavefield regularization and reveal that the Moho is continuous beneath most of the array, and not fragmented as suggested by some earlier studies.

  10. Universal GFR determination based on two time points during plasma iohexol disappearance.

    PubMed

    Ng, Derek K S; Schwartz, George J; Jacobson, Lisa P; Palella, Frank J; Margolick, Joseph B; Warady, Bradley A; Furth, Susan L; Muñoz, Alvaro

    2011-08-01

    An optimal measurement of glomerular filtration rate (GFR) should minimize the number of blood draws, and reduce procedural invasiveness and the burden to study personnel and cost, without sacrificing accuracy. Equations have been proposed to calculate GFR from the slow compartment separately for adults and children. To develop a universal equation, we used 1347 GFR measurements from two diverse groups consisting of 527 men in the Multicenter AIDS Cohort Study and 514 children in the Chronic Kidney Disease in Children cohort. Both studies used nearly identical two-compartment (fast and slow) protocols to measure GFR. To estimate the fast component from markers of body size and of the slow component, we used standard linear regression methods with the log-transformed fast area as the dependent variable. The fast area could be accurately estimated from body surface area by a simple parameter (6.4/body surface area) with no residual dependence on the slow area or other markers of body size. Our equation measures only the slow iohexol plasma disappearance curve with as few as two time points and was normalized to 1.73 m2 body surface area. It is of the form: GFR=slowGFR/[1+0.12(slowGFR/100)]. In a random sample utilizing a third of the patients for validation, there was excellent agreement between the calculated and measured GFR with low root mean square errors being 4.6 and 1.5 ml/min per 1.73 m2 for adults and children, respectively. Thus, our proposed simple equation, developed in a combined patient group with a broad range of GFRs, may be applied universally and is independent of the injected amount of iohexol.

  11. GNSS related periodic signals in coordinate time-series from Precise Point Positioning

    NASA Astrophysics Data System (ADS)

    Abraha, K. E.; Teferle, F. N.; Hunegnaw, A.; Dach, R.

    2017-03-01

    In Global Navigation Satellite System (GNSS) coordinate time-series unrecognized errors and unmodelled (periodic) effects may bias nonlinear motions induced by geophysical signals. Hence, understanding and mitigating these errors is vital to reducing biases and on revealing subtle geophysical signals. To assess the nature of periodic signals in coordinate time-series Precise Point Positioning (PPP) solutions for the period 2008-2015 are generated. The solutions consider Global Positioning System (GPS), GLObalnaya NAvigatsionnaya Sputnikovaya Sistema (GLONASS) or combined GPS+GLONASS (GNSS) observations. We assess the periodic signals of station coordinates computed using the combined International GNSS Service (IGS) and four of its Analysis Centers (ACs) products. Furthermore, we make use of different filtering methods to investigate the sources of the periodic signals. A faint fortnightly signal in our PPP solution based on Jet Propulsion Laboratory (JPL) products and the existence of an 8 d period for those ACs generating combined GPS+GLONASS products are the main features in the GPS-only solutions. The existence of the 8 d period in the GPS-only solution indicates that GPS orbits computed in a combined GNSS solution contain GLONASS-specific signals. The GLONASS-only solution shows highly elevated powers at the third draconitic harmonic (˜120 d period), at the 8 d period and its harmonics (4 d, 2.67 d) besides the well-known annual, semi-annual and other draconitic harmonics. We show that the GLONASS constellation gaps before December 2011 contribute to the power at some of the frequencies. However, the well-known fortnightly signal in GPS-only solutions is not discernible in the GLONASS-only solution. The combined GNSS solution contains periodic signals from both systems, with most of the powers being reduced when compared to the single-GNSS solutions. A 52 per cent reduction for the horizontal components and a 36 per cent reduction for the vertical component

  12. Application of Balanced Scorecard in the Evaluation of a Complex Health System Intervention: 12 Months Post Intervention Findings from the BHOMA Intervention: A Cluster Randomised Trial in Zambia

    PubMed Central

    Mutale, Wilbroad; Stringer, Jeffrey; Chintu, Namwinga; Chilengi, Roma; Mwanamwenge, Margaret Tembo; Kasese, Nkatya; Balabanova, Dina; Spicer, Neil; Lewis, James; Ayles, Helen

    2014-01-01

    Introduction In many low income countries, the delivery of quality health services is hampered by health system-wide barriers which are often interlinked, however empirical evidence on how to assess the level and scope of these barriers is scarce. A balanced scorecard is a tool that allows for wider analysis of domains that are deemed important in achieving the overall vision of the health system. We present the quantitative results of the 12 months follow-up study applying the balanced scorecard approach in the BHOMA intervention with the aim of demonstrating the utility of the balanced scorecard in evaluating multiple building blocks in a trial setting. Methods The BHOMA is a cluster randomised trial that aims to strengthen the health system in three rural districts in Zambia. The intervention aims to improve clinical care quality by implementing practical tools that establish clear clinical care standards through intensive clinic implementations. This paper reports the findings of the follow-up health facility survey that was conducted after 12 months of intervention implementation. Comparisons were made between those facilities in the intervention and control sites. STATA version 12 was used for analysis. Results The study found significant mean differences between intervention(I) and control (C) sites in the following domains: Training domain (Mean I:C; 87.5.vs 61.1, mean difference 23.3, p = 0.031), adult clinical observation domain (mean I:C; 73.3 vs.58.0, mean difference 10.9, p = 0.02 ) and health information domain (mean I:C; 63.6 vs.56.1, mean difference 6.8, p = 0.01. There was no gender differences in adult service satisfaction. Governance and motivation scores did not differ between control and intervention sites. Conclusion This study demonstrates the utility of the balanced scorecard in assessing multiple elements of the health system. Using system wide approaches and triangulating data collection methods seems to be key to successful

  13. A New Look at Infant Pointing

    ERIC Educational Resources Information Center

    Tomasello, Michael; Carpenter, Malinda; Liszkowski, Ulf

    2007-01-01

    The current article proposes a new theory of infant pointing involving multiple layers of intentionality and shared intentionality. In the context of this theory, evidence is presented for a rich interpretation of prelinguistic communication, that is, one that posits that when 12-month-old infants point for an adult they are in some sense trying…

  14. Stochastic modelling for biodosimetry: Predicting the chromosomal response to radiation at different time points after exposure

    NASA Astrophysics Data System (ADS)

    Deperas-Standylo, Joanna; Gudowska-Nowak, Ewa; Ritter, Sylvia

    2014-07-01

    Cytogenetic data accumulated from the experiments with peripheral blood lymphocytes exposed to densely ionizing radiation clearly demonstrate that for particles with linear energy transfer (LET) >100 keV/ μm the derived relative biological effectiveness (RBE) will strongly depend on the time point chosen for the analysis. A reasonable prediction of radiation-induced chromosome damage and its distribution among cells can be achieved by exploiting Monte Carlo methodology along with the information about the radius of the penetrating ion-track and the LET of the ion beam. In order to examine the relationship between the track structure and the distribution of aberrations induced in human lymphocytes and to clarify the correlation between delays in the cell cycle progression and the aberration burden visible at the first post-irradiation mitosis, we have analyzed chromosome aberrations in lymphocytes exposed to Fe-ions with LET values of 335 keV/ μm and formulated a Monte Carlo model which reflects time-delay in mitosis of aberrant cells. Within the model the frequency distributions of aberrations among cells follow the pattern of local energy distribution and are well approximated by a time-dependent compound Poisson statistics. The cell-division cycle of undamaged and aberrant cells and chromosome aberrations are modelled as a renewal process represented by a random sum of (independent and identically distributed) random elements S N = ∑ N i=0 X i . Here N stands for the number of particle traversals of cell nucleus, each leading to a statistically independent formation of X i aberrations. The parameter N is itself a random variable and reflects the cell cycle delay of heavily damaged cells. The probability distribution of S N follows a general law for which the moment generating function satisfies the relation Φ S N = Φ N ( Φ X i ). Formulation of the Monte Carlo model which allows to predict expected fluxes of aberrant and non-aberrant cells has been based

  15. Effects of teriparatide on bone mineral density and bone turnover markers in Japanese subjects with osteoporosis at high risk of fracture in a 24-month clinical study: 12-month, randomized, placebo-controlled, double-blind and 12-month open-label phases.

    PubMed

    Miyauchi, Akimitsu; Matsumoto, Toshio; Sugimoto, Toshitsugu; Tsujimoto, Mika; Warner, Margaret R; Nakamura, Toshitaka

    2010-09-01

    This multicenter study assessed the safety and efficacy of teriparatide 20 microg/day in Japanese men and women with osteoporosis at high risk of fracture during a 12-month, randomized, double-blind, placebo-controlled treatment period followed by second and third treatment periods (to 18 and 24 months, respectively,) in which all subjects received open-label teriparatide. Subjects (93% female; median age 70 years) were randomized 2:1 to teriparatide versus placebo (randomized at baseline, teriparatide n=137, placebo-teriparatide n=70; entering the second period, teriparatide n=119, placebo-teriparatide n=59; entering the third period, teriparatide n=102, placebo-teriparatide n=50). For subjects with measurements at 12 months, teriparatide significantly increased bone mineral density (BMD) at the lumbar spine L2-L4 (mean percent change+/-SD, teriparatide 10.04+/-5.23% versus placebo-teriparatide 0.19+/-4.33%), the femoral neck (teriparatide 2.01+/-4.63% versus placebo-teriparatide 0.44+/-3.97%), and the total hip (teriparatide 2.72+/-4.04% versus placebo-teriparatide -0.26+/-3.42%). In the placebo-teriparatide group at 24 months (12-month teriparatide dosing) BMD increased by 9.11+/-5.14% at the lumbar spine, 2.19+/-4.81% at the femoral neck and 2.46+/-3.54% at the total hip. In the teriparatide group at 18 and 24 months, BMD increased from baseline at the lumbar spine by 11.93+/-5.79% and 13.42+/-6.12%, respectively; at the femoral neck by 2.68+/-4.45% and 3.26+/-4.25%, respectively; and at the total hip by 3.02+/-3.79% and 3.67+/-3.98%, respectively. Serum procollagen I N-terminal pro-peptide (PINP) increased rapidly with teriparatide treatment (P<0.001 versus placebo at 1 month) and changed from baseline in the teriparatide and placebo-teriparatide groups at 12 months by a median of 78.95% and -17.23%, respectively, (P<0.001) and at 24 months by 49.24% and 76.12%, respectively. The incidence of treatment-emergent adverse events (TEAEs), serious TEAEs, and

  16. Repeated diffusion MRI reveals earliest time point for stratification of radiotherapy response in brain metastases

    NASA Astrophysics Data System (ADS)

    Mahmood, Faisal; Johannesen, Helle H.; Geertsen, Poul; Hansen, Rasmus H.

    2017-04-01

    An imaging biomarker for early prediction of treatment response potentially provides a non-invasive tool for better prognostics and individualized management of the disease. Radiotherapy (RT) response is generally related to changes in gross tumor volume manifesting months later. In this prospective study we investigated the apparent diffusion coefficient (ADC), perfusion fraction and pseudo diffusion coefficient derived from diffusion weighted MRI as potential early biomarkers for radiotherapy response of brain metastases. It was a particular aim to assess the optimal time point for acquiring the DW-MRI scan during the course of treatment, since to our knowledge this important question has not been addressed directly in previous studies. Twenty-nine metastases (N  =  29) from twenty-one patients, treated with whole-brain fractionated external beam RT were analyzed. Patients were scanned with a 1 T MRI system to acquire DW-, T2*W-, T2W- and T1W scans, before start of RT, at each fraction and at follow up two to three months after RT. The DW-MRI parameters were derived using regions of interest based on high b-value images (b  =  800 s mm‑2). Both volumetric and RECIST criteria were applied for response evaluation. It was found that in non-responding metastases the mean ADC decreased and in responding metastases it increased. The volume based response proved to be far more consistently predictable by the ADC change found at fraction number 7 and later, compared to the linear response (RECIST). The perfusion fraction and pseudo diffusion coefficient did not show sufficient prognostic value with either response assessment criteria. In conclusion this study shows that the ADC derived using high b-values may be a reliable biomarker for early assessment of radiotherapy response for brain metastases patients. The earliest response stratification can be achieved using two DW-MRI scans, one pre-treatment and one at treatment day 7–9 (equivalent to 21

  17. Radioisotopic Tie Points of the Quaternary Geomagnetic Instability Time Scale (GITS): How Accurate and Precise?

    NASA Astrophysics Data System (ADS)

    Singer, B. S.

    2014-12-01

    Reversals and excursions of the geomagnetic field are recorded globally by sedimentary and volcanic rocks. These geodynamo instabilities provide a rich set of chronostratigraphic tie points for the Quaternary period that can provide tests of age models central to paleoclimate studies. Radioisotopic dating of volcanic rocks, mainly 40Ar/39Ar dating of lava flows, coupled with astronomically-dated deep sea sediments, reveals 10 polarity reversals and 27 field excursions during the Quaternary (Singer, 2014). A key question concerns the uncertainties associated with radioisotopic dates of those geodynamo instabilities that have been identified both in terrestrial volcanic rocks and in deep sea sediments. These particular features offer the highest confidence in linking 40Ar/39Ar dates to the global marine climate record. Geological issues aside, for rocks in which the build-up of 40Ar by decay of 40K may be overwhelmed by atmospheric 40Ar at the time of eruption, the uncertainty in 40Ar/39Ar dates derives from three sources: (1) analytical uncertainty associated with measurement of the isotopes; this is straightforward to estimate; (2) systematic uncertainties stemming from the age of standard minerals, such as the Fish Canyon sanidine, and in the 40K decay constant; and (3) systematic uncertainty introduced during analysis, mainly the size and reproducibility of procedural blanks. Whereas 1 and 2 control the precision of an age determination, 2 and 3 also control accuracy. In parallel with an astronomical calibration of 28.201 Ma for the Fish Canyon sanidine standard, awareness of the importance of procedural blanks, and a new generation multi-collector mass spectrometer capable of exceptionally low-blank and isobar-free analysis, are improving both accuracy and precision of 40Ar/39Ar dates. Results from lavas recording the Matuyama-Brunhes reversal, the Santa Rosa excursion, and the reversal at the top of the Cobb Mtn subchron demonstrate these advances. Current best

  18. [Inhospital and 12-months results of percutaneous coronary interventions with implantation of Paclitaxel eluting stents in patients with long de novo coronary artery lesions].

    PubMed

    Batyraliev, T A; Fettser, D V; Sidorenko, B A; Preobrazhenskiĭ, D V; Niyazova-Karben, Z A; Abdramanov, K A; Belenkov, Iu N

    2010-01-01

    We implanted 59 paclitaxel eluting Apollo stents to 48 patients with ischemic heart disease (IHD) and long de novo coronary artery lesions in 2007 with 100% immediate success rate without inhospital major cardiac complications. One patient developed hematoma at femoral artery puncture site. There were no cases of restenosis among 18 patients subjected to control angiography after 6 months. One patient had acute myocardial infarction in area supplied by nontarget artery. Control angiography after 12 months was carried out in 81.3% of patients while 14.6% of patients who refused angiography were examined with stress tests. Restenosis of stented segments was found in 3 (5.3%) patients, diameter loss was 0.32+/-0.45 mm. All these patients were subjected to repeat PCI. During follow up myocardial infarctions were registered in 4.2% of patients, overall rate of serious cardiac complications was 11.6%. PCI with implantation of paclitaxel was safe and effective with acceptable rate of major cardiac complications. Our results evidence in favor of further use of these stents.

  19. Nutritional status of breastfed infants in rural Zambia: comparison of the National Center for Health Statistics growth reference versus the WHO 12-month breastfed pooled data set.

    PubMed Central

    Hautvast, J. L.; Pandor, A.; Burema, J.; Tolboom, J. J.; Chishimba, N.; Monnens, L. A.; van Staveren, W. A.

    2000-01-01

    Cross-sectional data for breastfed infants in rural Zambia were used to evaluate the effect of applying two different data sets as a reference, i.e. the WHO 12-month breastfed pooled data set and the National Center for Health Statistics (NCHS) growth reference in terms of prevalence of malnutrition (stunting, underweight, and wasting). A total of 518 infants who were attending mother-and-child health clinics were included. Age, weight and length were recorded. Anthropometric Z-scores were calculated in two ways: by applying the NCHS growth reference and by using the WHO breastfed data set. Anthropometric Z-scores calculated using the breastfed data set were lower during the first 6-7 months of life compared with those calculated by applying the NCHS growth reference. This resulted in a higher proportion of children aged 0-6 months being classified as stunted and underweight using the breastfed data set versus the NCHS growth reference. After the age of 7 months, similar prevalences of stunting or underweight were observed. Relatively few infants were classified as wasted. In order to adequately assess the prevalence of stunting and underweight in breastfed infants, it is recommended that a new growth reference be developed, as has been initiated by WHO. PMID:10885182

  20. Impact of dose reductions on efficacy outcome in heart transplant patients receiving enteric-coated mycophenolate sodium or mycophenolate mofetil at 12 months post-transplantation.

    PubMed

    Segovia, Javier; Gerosa, Gino; Almenar, Luis; Livi, Ugolino; Viganò, Mario; Arizón, Jose Maria; Yonan, Nizar; Di Salvo, Thomas G; Renlund, Dale G; Kobashigawa, Jon A

    2008-01-01

    Mycophenolic acid (MPA) dose reduction is associated with increased risk of rejection and graft loss in renal transplantation. This analysis investigated the impact of MPA dose changes with enteric-coated mycophenolate sodium (EC-MPS) or mycophenolate mofetil (MMF) in de novo heart transplant recipients. In a 12-month, single-blind trial, 154 patients (EC-MPS, 78; MMF, 76) were randomized to either EC-MPS (1080 mg bid) or MMF (1500 mg bid) in combination with cyclosporine and steroids. The primary efficacy variable was the incidence of treatment failure, comprising a composite of biopsy-proven (BPAR) and treated acute rejection, graft loss or death. Significantly fewer patients receiving EC-MPS required > or =2 dose reductions than patients on MMF (26.9% vs. 42.1% of patients, p = 0.048). Accordingly, the average daily dose of EC-MPS as a percentage of the recommended dose was significantly higher than for MMF (88.4% vs. 79.0%, p = 0.016). Among patients requiring > or =1 dose reduction, the incidence of treated BPAR grade > or =3A was significantly lower with EC-MPS compared with MMF (23.4% vs. 44.0%, p = 0.032). These data suggest that EC-MPS-treated heart transplant patients are less likely to require multiple dose reductions than those on MMF which may be associated with a significantly lower risk of treated BPAR > or =3A.

  1. Coping and Parenting: Mediators of 12-Month Outcomes of a Family Group Cognitive-Behavioral Preventive Intervention with Families of Depressed Parents

    PubMed Central

    Compas, Bruce E.; Champion, Jennifer E.; Forehand, Rex; Cole, David A.; Reeslund, Kristen L.; Fear, Jessica; Hardcastle, Emily J.; Keller, Gary; Rakow, Aaron; Garai, Emily; Merchant, Mary Jane; Roberts, Lorinda

    2011-01-01

    In a randomized clinical trial with 111 families of parents with a history of major depressive disorder (86% mothers; 86% Caucasian), changes in adolescents’ (mean age 11 years; 42% female) coping and parents’ parenting skills were examined as mediators of the effects of a family group cognitive behavioral preventive intervention on adolescents’ internalizing and externalizing symptoms. Changes in hypothesized mediators were assessed at 6-months and changes in adolescents’ symptoms were measured at 12-month follow-up. Significant differences favoring the family intervention as compared with a written information comparison condition were found for changes in composite measures of parent-adolescent reports of adolescents’ use of secondary control coping skills and direct observations of parents’ positive parenting skills. Changes in adolescents’ secondary control coping and positive parenting mediated the effects of the intervention on depressive, internalizing and externalizing symptoms accounting for approximately half of the effect of the intervention on the outcomes. Further, reciprocal relations between children’s internalizing symptoms and parenting were found from baseline to 6-month follow-up. Implications for the prevention of psychopathology in offspring of depressed parents are highlighted. PMID:20873898

  2. Nutritional status of breastfed infants in rural Zambia: comparison of the National Center for Health Statistics growth reference versus the WHO 12-month breastfed pooled data set.

    PubMed

    Hautvast, J L; Pandor, A; Burema, J; Tolboom, J J; Chishimba, N; Monnens, L A; van Staveren, W A

    2000-01-01

    Cross-sectional data for breastfed infants in rural Zambia were used to evaluate the effect of applying two different data sets as a reference, i.e. the WHO 12-month breastfed pooled data set and the National Center for Health Statistics (NCHS) growth reference in terms of prevalence of malnutrition (stunting, underweight, and wasting). A total of 518 infants who were attending mother-and-child health clinics were included. Age, weight and length were recorded. Anthropometric Z-scores were calculated in two ways: by applying the NCHS growth reference and by using the WHO breastfed data set. Anthropometric Z-scores calculated using the breastfed data set were lower during the first 6-7 months of life compared with those calculated by applying the NCHS growth reference. This resulted in a higher proportion of children aged 0-6 months being classified as stunted and underweight using the breastfed data set versus the NCHS growth reference. After the age of 7 months, similar prevalences of stunting or underweight were observed. Relatively few infants were classified as wasted. In order to adequately assess the prevalence of stunting and underweight in breastfed infants, it is recommended that a new growth reference be developed, as has been initiated by WHO.

  3. Protective effects of astragalosides on dexamethasone and Aβ25-35 induced learning and memory impairments due to decrease amyloid precursor protein expression in 12-month male rats.

    PubMed

    Li, Wei-Zu; Wu, Wang-Yang; Huang, Da-Ke; Yin, Yan-Yan; Kan, Hong-Wei; Wang, Xin; Yao, Yu-You; Li, Wei-Ping

    2012-06-01

    Alzheimer's disease (AD) is a chronic neurodegenerative disorder of the elderly characterized by learning and memory impairment. Stress level glucocorticoids (GCs) and β-amyloid (Aβ) peptide deposition are found to be correlated with dementia progression in patients with AD. The astragalosides (AST) was extracted from traditional Chinese herb Astragalus membranaceous. In this study, 12 months male rats were treated with Aβ(25-35) (10 μg/rat, hippocampal CA1 injection) and dexamethasone (DEX, 1.5mg/kg, ig) and AST (8, 16 and 32 mg/kg, ig) or ginsenoside Rg1 (Rg1, 5 mg/kg, ig) for 14 days. We investigated the protective effect of AST against DEX+Aβ(25-35) injury in rats and its mechanisms of action. Our results indicate that DEX+Aβ(25-35) can induce learning and memory impairments and increase APP and Aβ(1-40) expression. AST (16, 32 mg/kg) or Rg1 (5mg/kg) treatment significantly improve learning and memory, down-regulate the mRNA levels of APP and β-secretase, decrease expression of APP and Aβ(1-40) in hippocampus. The results indicated that DEX might increase hippocampal vulnerability to Aβ(25-35) and highlight the potential neuronal protection of AST.

  4. Immunogenicity of reduced dose priming schedules of serogroup C meningococcal conjugate vaccine followed by booster at 12 months in infants: open label randomised controlled trial

    PubMed Central

    Khatami, Ameneh; McKenna, Jennifer; Campbell, Danielle; Attard-Montalto, Simon; Birks, Jacqueline; Voysey, Merryn; White, Catherine; Finn, Adam; Macloed, Emma; Faust, Saul N; Kent, Alison Louise; Heath, Paul T; Borrow, Ray; Snape, Matthew D; Pollard, Andrew J

    2015-01-01

    Objective To determine whether the immunogenicity of a single dose infant priming schedule of serogroup C meningococcal (MenC) conjugate vaccine is non-inferior to a two dose priming schedule when followed by a booster dose at age 12 months. Design Phase IV open label randomised controlled trial carried out from July 2010 until August 2013 Setting Four centres in the United Kingdom and one centre in Malta. Participants Healthy infants aged 6-12 weeks followed up until age 24 months. Interventions In the priming phase of the trial 509 infants were randomised in a 10:10:7:4 ratio into four groups to receive either a single MenC-cross reacting material 197 (CRM) dose at 3 months; two doses of MenC-CRM at 3 and 4 months; a single MenC-polysaccharide-tetanus toxoid (TT) dose at 3 months; or no MenC doses, respectively. Haemophilus influenzae type b (Hib)-MenC-TT vaccine was administered to all infants at 12 months of age. All infants also received the nationally routinely recommended vaccines. Blood samples were taken at age 5, 12, 13, and 24 months. Main outcome measure MenC serum bactericidal antibody assay with rabbit complement (rSBA) one month after the Hib-MenC-TT vaccine. Non-inferiority was met if the lower 95% confidence limit of the difference in the mean log10 MenC rSBA between the single dose MenC-CRM and the two dose MenC-CRM groups was >−0.35. Results The primary objective was met: after a Hib-MenC-TT booster dose at 12 months of age the MenC rSBA geometric mean titres induced in infants primed with a single MenC-CRM dose were not inferior to those induced in participants primed with two MenC-CRM doses in infancy (660 (95% confidence interval 498 to 876) v 295 (220 to 398)) with a corresponding difference in the mean log10 MenC rSBA of 0.35 (0.17 to 0.53) that showed superiority of the single over the two dose schedule). Exploration of differences between the priming schedules showed that one month after Hib-MenC-TT vaccination, MenC rSBA ≥1:8 was

  5. Is selective attention the basis for selective imitation in infants? An eye-tracking study of deferred imitation with 12-month-olds.

    PubMed

    Kolling, Thorsten; Oturai, Gabriella; Knopf, Monika

    2014-08-01

    Infants and children do not blindly copy every action they observe during imitation tasks. Research demonstrated that infants are efficient selective imitators. The impact of selective perceptual processes (selective attention) for selective deferred imitation, however, is still poorly described. The current study, therefore, analyzed 12-month-old infants' looking behavior during demonstration of two types of target actions: arbitrary versus functional actions. A fully automated remote eye tracker was used to assess infants' looking behavior during action demonstration. After a 30-min delay, infants' deferred imitation performance was assessed. Next to replicating a memory effect, results demonstrate that infants do imitate significantly more functional actions than arbitrary actions (functionality effect). Eye-tracking data show that whereas infants do not fixate significantly longer on functional actions than on arbitrary actions, amount of fixations and amount of saccades differ between functional and arbitrary actions, indicating different encoding mechanisms. In addition, item-level findings differ from overall findings, indicating that perceptual and conceptual item features influence looking behavior. Looking behavior on both the overall and item levels, however, does not relate to deferred imitation performance. Taken together, the findings demonstrate that, on the one hand, selective imitation is not explainable merely by selective attention processes. On the other hand, notwithstanding this reasoning, attention processes on the item level are important for encoding processes during target action demonstration. Limitations and future studies are discussed.

  6. In situ heart valve tissue engineering using a bioresorbable elastomeric implant - From material design to 12 months follow-up in sheep.

    PubMed

    Kluin, Jolanda; Talacua, Hanna; Smits, Anthal I P M; Emmert, Maximilian Y; Brugmans, Marieke C P; Fioretta, Emanuela S; Dijkman, Petra E; Söntjens, Serge H M; Duijvelshoff, Renée; Dekker, Sylvia; Janssen-van den Broek, Marloes W J T; Lintas, Valentina; Vink, Aryan; Hoerstrup, Simon P; Janssen, Henk M; Dankers, Patricia Y W; Baaijens, Frank P T; Bouten, Carlijn V C

    2017-05-01

    The creation of a living heart valve is a much-wanted alternative for current valve prostheses that suffer from limited durability and thromboembolic complications. Current strategies to create such valves, however, require the use of cells for in vitro culture, or decellularized human- or animal-derived donor tissue for in situ engineering. Here, we propose and demonstrate proof-of-concept of in situ heart valve tissue engineering using a synthetic approach, in which a cell-free, slow degrading elastomeric valvular implant is populated by endogenous cells to form new valvular tissue inside the heart. We designed a fibrous valvular scaffold, fabricated from a novel supramolecular elastomer, that enables endogenous cells to enter and produce matrix. Orthotopic implantations as pulmonary valve in sheep demonstrated sustained functionality up to 12 months, while the implant was gradually replaced by a layered collagen and elastic matrix in pace with cell-driven polymer resorption. Our results offer new perspectives for endogenous heart valve replacement starting from a readily-available synthetic graft that is compatible with surgical and transcatheter implantation procedures.

  7. Exact solution for a random walk in a time-dependent 1D random environment: the point-to-point Beta polymer

    NASA Astrophysics Data System (ADS)

    Thiery, Thimothée; Le Doussal, Pierre

    2017-01-01

    We consider the Beta polymer, an exactly solvable model of directed polymer on the square lattice, introduced by Barraquand and Corwin (BC) (2016 Probab. Theory Relat. Fields 1-16). We study the statistical properties of its point to point partition sum. The problem is equivalent to a model of a random walk in a time-dependent (and in general biased) 1D random environment. In this formulation, we study the sample to sample fluctuations of the transition probability distribution function (PDF) of the random walk. Using the Bethe ansatz we obtain exact formulas for the integer moments, and Fredholm determinant formulas for the Laplace transform of the directed polymer partition sum/random walk transition probability. The asymptotic analysis of these formulas at large time t is performed both (i) in a diffusive vicinity, x˜ {{t}1/2} , of the optimal direction (in space-time) chosen by the random walk, where the fluctuations of the PDF are found to be Gamma distributed; (ii) in the large deviations regime, x˜ t , of the random walk, where the fluctuations of the logarithm of the PDF are found to grow with time as t 1/3 and to be distributed according to the Tracy-Widom GUE distribution. Our exact results complement those of BC for the cumulative distribution function of the random walk in regime (ii), and in regime (i) they unveil a novel fluctuation behavior. We also discuss the crossover regime between (i) and (ii), identified as x˜ {{t}3/4} . Our results are confronted to extensive numerical simulations of the model.

  8. FUSING POINT AND AREAL LEVEL SPACE-TIME DATA WITH APPLICATION TO WET DEPOSITION

    EPA Science Inventory

    Motivated by the problem of predicting annual wet chemical deposition in the eastern United States, this paper develops a framework for joint modeling of point and grid referenced spatio-temporal data. The proposed hierarchical model is able to provide accurate spatial interpolat...

  9. Free-time and fixed end-point optimal control theory in quantum mechanics: application to entanglement generation.

    PubMed

    Mishima, K; Yamashita, K

    2009-01-21

    We have constructed free-time and fixed end-point optimal control theory for quantum systems and applied it to entanglement generation between rotational modes of two polar molecules coupled by dipole-dipole interaction. The motivation of the present work is to solve optimal control problems more flexibly by extending the popular fixed time and fixed end-point optimal control theory for quantum systems to free-time and fixed end-point optimal control theory. As a demonstration, the theory that we have constructed in this paper will be applied to entanglement generation in rotational modes of NaCl-NaBr polar molecular systems that are sensitive to the strength of entangling interactions. Our method will significantly be useful for the quantum control of nonlocal interaction such as entangling interaction, which depends crucially on the strength of the interaction or the distance between the two molecules, and other general quantum dynamics, chemical reactions, and so on.

  10. Free-time and fixed end-point optimal control theory in quantum mechanics: Application to entanglement generation

    NASA Astrophysics Data System (ADS)

    Mishima, K.; Yamashita, K.

    2009-01-01

    We have constructed free-time and fixed end-point optimal control theory for quantum systems and applied it to entanglement generation between rotational modes of two polar molecules coupled by dipole-dipole interaction. The motivation of the present work is to solve optimal control problems more flexibly by extending the popular fixed time and fixed end-point optimal control theory for quantum systems to free-time and fixed end-point optimal control theory. As a demonstration, the theory that we have constructed in this paper will be applied to entanglement generation in rotational modes of NaCl-NaBr polar molecular systems that are sensitive to the strength of entangling interactions. Our method will significantly be useful for the quantum control of nonlocal interaction such as entangling interaction, which depends crucially on the strength of the interaction or the distance between the two molecules, and other general quantum dynamics, chemical reactions, and so on.

  11. Use of localized human growth hormone and testosterone injections in addition to manual therapy and exercise for lower back pain: a case series with 12-month follow-up

    PubMed Central

    Dubick, Marc N; Ravin, Thomas H; Michel, Yvonne; Morrisette, David C

    2015-01-01

    Objective The objective of this case series was to investigate the feasibility and safety of a novel method for the management of chronic lower back pain. Injections of recombinant human growth hormone and testosterone to the painful and dysfunctional areas in individuals with chronic lower back pain were used. In addition, the participants received manual therapies and exercise addressing physical impairments such as motor control, strength, endurance, pain, and loss of movement. Pain ratings and self-rated functional outcomes were assessed. Study design This is a case series involving consecutive patients with chronic lower back pain who received the intervention of injections of recombinant human growth hormone and testosterone, and attended chiropractic and/or physical therapy. Outcomes were measured at 12 months from the time of injection. Setting A community based hospital affiliated office, and a private practice block suite. Participants A total of 60 consecutive patients attending a pain management practice for chronic lower back pain were recruited for the experimental treatment. Most participants were private pay. Interventions Participants who provided informed consent and were determined not to have radicular pain received diagnostic blocks. Those who responded favorably to the diagnostic blocks received injections of recombinant human growth hormone and testosterone in the areas treated with the blocks. Participants also received manipulation- and impairment-based exercises. Outcome measures Outcomes were assessed at 12 months through pain ratings with the Mankowski Pain Scale and the Oswestry Disability Index. Results Of the 60 patients recruited, 49 provided informed consent, and 39 completed all aspects of the study. Those patients receiving the intervention reported a significant decrease in pain ratings (P<0.01) and a significant improvement in self-rated Oswestry Disability Index scores (P<0.01). In addition, in the Oswestry Disability Index

  12. Validation of a Single-Time-Point Measurement of Total Abdominal Counts to Simplify Small Bowel and Colon Transit Analyses.

    PubMed

    Maurer, Alan H; Parupalli, Rahul; Orthey, Perry; Parkman, Henry P

    2016-12-01

    The Society of Nuclear Medicine and Molecular Imaging and European Association of Nuclear Medicine procedure guide on gastrointestinal transit currently indicates that the mean of total abdominal counts of 7 time points (0-360 min) is used to define the total abdominal counts for bowel transit studies. The purpose of this study was to investigate the variability of total abdominal counts during the initial 6 h of bowel transit and to determine whether a simplified, single-time-point measurement can be used.

  13. Different RAN Components Relate to Reading at Different Points in Time

    ERIC Educational Resources Information Center

    Georgiou, George K.; Papadopoulos, Timothy C.; Kaizer, Eleni L.

    2014-01-01

    The present 10-year longitudinal study examined how rapid automatized naming (RAN) components--articulation time and pause time--relate to reading fluency. Seventy-five Greek-speaking children were followed from Grade 1 to Grade 10 and were assessed five times (in Grades 1, 2, 4, 6, and 10) on RAN (digits and objects) and reading fluency (word…

  14. Atypical late-time singular regimes accurately diagnosed in stagnation-point-type solutions of 3D Euler flows

    NASA Astrophysics Data System (ADS)

    Mulungye, Rachel M.; Lucas, Dan; Bustamante, Miguel D.

    2016-02-01

    We revisit, both numerically and analytically, the finite-time blowup of the infinite-energy solution of 3D Euler equations of stagnation-point-type introduced by Gibbon et al. (1999). By employing the method of mapping to regular systems, presented in Bustamante (2011) and extended to the symmetry-plane case by Mulungye et al. (2015), we establish a curious property of this solution that was not observed in early studies: before but near singularity time, the blowup goes from a fast transient to a slower regime that is well resolved spectrally, even at mid-resolutions of $512^2.$ This late-time regime has an atypical spectrum: it is Gaussian rather than exponential in the wavenumbers. The analyticity-strip width decays to zero in a finite time, albeit so slowly that it remains well above the collocation-point scale for all simulation times $t < T^* - 10^{-9000}$, where $T^*$ is the singularity time. Reaching such a proximity to singularity time is not possible in the original temporal variable, because floating point double precision ($\\approx 10^{-16}$) creates a `machine-epsilon' barrier. Due to this limitation on the \\emph{original} independent variable, the mapped variables now provide an improved assessment of the relevant blowup quantities, crucially with acceptable accuracy at an unprecedented closeness to the singularity time: $T^*- t \\approx 10^{-140}.$

  15. Side Effects in Time Discounting Procedures: Fixed Alternatives Become the Reference Point

    PubMed Central

    2016-01-01

    Typical research on intertemporal choice utilizes a two-alternative forced choice (2AFC) paradigm requiring participants to choose between a smaller sooner and larger later payoff. In the adjusting-amount procedure (AAP) one of the alternatives is fixed and the other is adjusted according to particular choices made by the participant. Such a method makes the alternatives unequal in status and is speculated to make the fixed alternative a reference point for choices, thereby affecting the decision made. The current study shows that fixing different alternatives in the AAP influences discount rates in intertemporal choices. Specifically, individuals’ (N = 283) choices were affected to just the same extent by merely fixing an alternative as when choices were preceded by scenarios explicitly imposing reference points. PMID:27768759

  16. Side Effects in Time Discounting Procedures: Fixed Alternatives Become the Reference Point.

    PubMed

    Sawicki, Przemysław; Białek, Michał

    2016-01-01

    Typical research on intertemporal choice utilizes a two-alternative forced choice (2AFC) paradigm requiring participants to choose between a smaller sooner and larger later payoff. In the adjusting-amount procedure (AAP) one of the alternatives is fixed and the other is adjusted according to particular choices made by the participant. Such a method makes the alternatives unequal in status and is speculated to make the fixed alternative a reference point for choices, thereby affecting the decision made. The current study shows that fixing different alternatives in the AAP influences discount rates in intertemporal choices. Specifically, individuals' (N = 283) choices were affected to just the same extent by merely fixing an alternative as when choices were preceded by scenarios explicitly imposing reference points.

  17. Real-time 2D floating-point fast Fourier transforms for seeker simulation

    NASA Astrophysics Data System (ADS)

    Chamberlain, Richard; Lord, Eric; Shand, David J.

    2002-07-01

    The floating point Fast Fourier Transform (FFT) is one of the most useful basic functions available to the image and signal processing engineer allowing many complex and detailed special functions to be implemented more simply in the frequency domain. In the Hardware-in-the-Loop field an image transformed using FFT would allow the designer to think about accurate frequency based simulation of seeker lens effects, motion blur, detector transfer functions and much more. Unfortunately, the transform requires many hundreds of thousands or millions of floating point operations on a single modest sized image making it impractical for realtime Hardware-in-the-Loop systems. .until now. This paper outlines the development, by Nallatech, of an FPGA based IEEE floating point core. It traces the subsequent use of this core to develop a full 256 X 256 FFT and filter process implemented on COTS hardware at frame rates up to 150Hz. This transform can be demonstrated to model optical transfer functions at a far greater accuracy than the current spatial models. Other applications and extensions of this technique will be discussed such as filtering for image tracking algorithms and in the simulation of radar processing in the frequency domain.

  18. Brain reorganization as a function of walking experience in 12-month-old infants: implications for the development of manual laterality

    PubMed Central

    Corbetta, Daniela; Friedman, Denise R.; Bell, Martha Ann

    2014-01-01

    Hand preference in infancy is marked by many developmental shifts in hand use and arm coupling as infants reach for and manipulate objects. Research has linked these early shifts in hand use to the emergence of fundamental postural–locomotor milestones. Specifically, it was found that bimanual reaching declines when infants learn to sit; increases if infants begin to scoot in a sitting posture; declines when infants begin to crawl on hands and knees; and increases again when infants start walking upright. Why such pattern fluctuations during periods of postural–locomotor learning? One proposed hypothesis is that arm use practiced for the specific purpose of controlling posture and achieving locomotion transfers to reaching via brain functional reorganization. There has been scientific support for functional cortical reorganization and change in neural connectivity in response to motor practice in adults and animals, and as a function of crawling experience in human infants. In this research, we examined whether changes in neural connectivity also occurred as infants coupled their arms when learning to walk and whether such coupling mapped onto reaching laterality. Electroencephalogram (EEG) coherence data were collected from 43 12-month-old infants with varied levels of walking experience. EEG was recorded during quiet, attentive baseline. Walking proficiency was laboratory assessed and reaching responses were captured using small toys presented at mid-line while infants were sitting. Results revealed greater EEG coherence at homologous prefrontal/central scalp locations for the novice walkers compared to the prewalkers or more experienced walkers. In addition, reaching laterality was low in prewalkers and early walkers but high in experienced walkers. These results are consistent with the interpretation that arm coupling practiced during early walking transferred to reaching via brain functional reorganization, leading to the observed developmental changes in

  19. Brain reorganization as a function of walking experience in 12-month-old infants: implications for the development of manual laterality.

    PubMed

    Corbetta, Daniela; Friedman, Denise R; Bell, Martha Ann

    2014-01-01

    Hand preference in infancy is marked by many developmental shifts in hand use and arm coupling as infants reach for and manipulate objects. Research has linked these early shifts in hand use to the emergence of fundamental postural-locomotor milestones. Specifically, it was found that bimanual reaching declines when infants learn to sit; increases if infants begin to scoot in a sitting posture; declines when infants begin to crawl on hands and knees; and increases again when infants start walking upright. Why such pattern fluctuations during periods of postural-locomotor learning? One proposed hypothesis is that arm use practiced for the specific purpose of controlling posture and achieving locomotion transfers to reaching via brain functional reorganization. There has been scientific support for functional cortical reorganization and change in neural connectivity in response to motor practice in adults and animals, and as a function of crawling experience in human infants. In this research, we examined whether changes in neural connectivity also occurred as infants coupled their arms when learning to walk and whether such coupling mapped onto reaching laterality. Electroencephalogram (EEG) coherence data were collected from 43 12-month-old infants with varied levels of walking experience. EEG was recorded during quiet, attentive baseline. Walking proficiency was laboratory assessed and reaching responses were captured using small toys presented at mid-line while infants were sitting. Results revealed greater EEG coherence at homologous prefrontal/central scalp locations for the novice walkers compared to the prewalkers or more experienced walkers. In addition, reaching laterality was low in prewalkers and early walkers but high in experienced walkers. These results are consistent with the interpretation that arm coupling practiced during early walking transferred to reaching via brain functional reorganization, leading to the observed developmental changes in

  20. Development of rotational movements, hand shaping, and accuracy in advance and withdrawal for the reach-to-eat movement in human infants aged 6-12 months.

    PubMed

    Sacrey, Lori-Ann R; Karl, Jenni M; Whishaw, Ian Q

    2012-06-01

    The reach-to-eat movement, transport of a hand to grasp an object that is withdrawn and placed in the mouth, is amongst the earliest developing functional movements of human infants. The present longitudinal study is the first description of the maturation of hand-rotation, hand shaping, and accuracy associated with the advance and withdrawal phases of the movement. Eight infants, aged 6-12 months, and eight adults, were video recorded as they reached for familiar objects or food items. Hand, arm, and trunk movements were assessed frame-by-frame with the Skilled Reaching Rating Scale, previously developed for the assessment of adult reaching, and supplementary kinematic analysis. Reach-to-eat maturation was characterized by three changes. First, for advance, a simple open hand transport gradually matured to a movement associated with pronation and hand shaping of the digits for precision grasping. Second, for withdrawal to the mouth, a direct withdrawal movement gradually became associated with hand supination that oriented the target object to the mouth. Third, associated with the maturation of rotational movements, inaccurate and fragmented hand transport and withdrawal movements developed into precise targeting of the hand-to-object and object-to-mouth. Across the age range, there was a decrease in bimanual reaching and an increase in right handed reaching. The results are discussed in relation to the idea that the maturation of the reach-to-eat movement involves the development of rotational and shaping movements of the hand and visual and somatosensory guidance of a preferred hand.

  1. Dexamethasone and Aβ₂₅-₃₅ accelerate learning and memory impairments due to elevate amyloid precursor protein expression and neuronal apoptosis in 12-month male rats.

    PubMed

    Li, Wei-Zu; Li, Wei-Ping; Huang, Da-Ke; Kan, Hong-Wei; Wang, Xin; Wu, Wang-Yang; Yin, Yan-Yan; Yao, Yu-You

    2012-02-01

    Alzheimer's disease (AD) is an irreversible, progressive brain disorder of the elderly characterized by learning and memory impairment. Stress level glucocorticoids (GCs) and β-amyloid (Aβ) peptides deposition are found to be correlated with dementia progression in patients with AD. However, little is known about the simultaneous effects of glucocorticoids and Aβ on learning and memory impairment and its mechanism. In this study, 12-month-old male rats were chronically treated with Aβ(25-35) (10 μg/rat, hippocampal CA1 injection) and dexamethasone (DEX, 1.5mg/kg) for 14 days to investigate the effects of DEX and Aβ(25-35) treatment on learning and memory impairments, pathological changes, neuronal ultrastructure, amyloid precursor protein (APP) processing and neuronal cell apoptosis. Our results showed that DEX or Aβ(25-35) treatment alone for 14 days had caused slight damage on learning and memory impairments and hippocampal neurons, but damages were significantly increased with DEX+Aβ(25-35) treatment. And the mRNA levels of the APP, β-secretase and caspase 3 were significantly increased after DEX+Aβ(25-35) treatment. The immunohistochemistry demonstrated that APP, Aβ(1-40), caspase 3 and cytochrome c in hippocampus CA1 were significantly increased. Furthermore, Hoechst 33258 staining and Aβ(1-40) ELISA results showed that DEX+Aβ(25-35) treatment induced hippocampus CA1 neuron apoptosis and increased the level of Aβ(1-40). The results suggest that the simultaneous effects of GCs and Aβ may have important roles in the etiopathogenesis of AD, and demonstrate that stressful life events and GC therapy may increase the toxicity of Aβ and have cumulative impacts on the course of AD development and progression.

  2. Hospital Utilisation in Indigenous and Non-Indigenous Infants under 12 Months of Age in Western Australia, Prospective Population Based Data Linkage Study

    PubMed Central

    McAullay, Daniel; Strobel, Natalie A.; Marriott, Rhonda; Atkinson, David N.; Marley, Julia V.; Stanley, Fiona J.

    2016-01-01

    Background Indigenous infants (infants aged under 12 months) have the highest hospital admission and emergency department presentation risks in Australia. However, there have been no recent reports comparing hospital utilisation between Indigenous and non-Indigenous infants. Methods Our primary objective was to use a large prospective population-based linked dataset to assess the risk of all-cause hospital admission and emergency department presentation in Indigenous compared to non-Indigenous infants in Western Australia (WA). Secondary objectives were to assess the effect of socio-economic status (Index of Relative Socio-Economic Disadvantage [IRSD]) on hospital utilisation and to understand the causes of hospital utilisation. Findings There were 3,382 (5.4%) Indigenous and 59,583 (94.6%) non-Indigenous live births in WA from 1 January 2010 to 31 December 2011. Indigenous infants had a greater risk of hospital admission (adjusted odds ratio [aOR] 1.90, 95% confidence interval [95% CI] 1.77–2.04, p = <0.001) and emergency department presentation (aOR 2.15, 95% CI 1.98–2.33, p = <0.001) compared to non-Indigenous infants. Fifty nine percent (59.0%) of admissions in Indigenous children were classified as preventable compared to 31.2% of admissions in non-Indigenous infants (aOR 2.12, 95% CI 1.88–2.39). The risk of hospital admission in the most disadvantaged (IRSD 1) infants in the total cohort (35.7%) was similar to the risk in the least disadvantaged (IRSD 5) infants (30.6%) (aOR 1.04, 95% CI 0.96–1.13, p = 0.356). Interpretation WA Indigenous infants have much higher hospital utilisation than non Indigenous infants. WA health services should prioritise Indigenous infants regardless of their socio economic status or where they live. PMID:27120331

  3. External Beam Radiotherapy for Clinically Localized Hormone-Refractory Prostate Cancer: Clinical Significance of Nadir Prostate-Specific Antigen Value Within 12 Months

    SciTech Connect

    Ogawa, Kazuhiko Nakamura, Katsumasa; Sasaki, Tomonari; Onishi, Hiroshi; Koizumi, Masahiko; Shioyama, Yoshiyuki; Araya, Masayuki; Mukumoto, Nobutaka M.S.; Mitsumori, Michihide; Teshima, Teruki

    2009-07-01

    Purpose: To analyze retrospectively the results of external beam radiotherapy for clinically localized hormone-refractory prostate cancer and investigate the clinical significance of nadir prostate-specific antigen (PSA) value within 12 months (nPSA12) as an early estimate of clinical outcomes after radiotherapy. Methods and Materials: Eighty-four patients with localized hormone-refractory prostate cancer treated with external beam radiotherapy were retrospectively reviewed. The total radiation doses ranged from 30 to 76 Gy (median, 66 Gy), and the median follow-up period for all 84 patients was 26.9 months (range, 2.7-77.3 months). Results: The 3-year actuarial overall survival, progression-free survival (PFS), and local control rates in all 84 patients after radiotherapy were 67%, 61%, and 93%, respectively. Although distant metastases and/or regional lymph node metastases developed in 34 patients (40%) after radiotherapy, local progression was observed in only 5 patients (6%). Of all 84 patients, the median nPSA12 in patients with clinical failure and in patients without clinical failure was 3.1 ng/mL and 0.5 ng/mL, respectively. When dividing patients according to low (<0.5 ng/mL) and high ({>=}0.5 ng/mL) nPSA12 levels, the 3-year PFS rate in patients with low nPSA12 and in those with high nPSA12 was 96% and 44%, respectively (p < 0.0001). In univariate analysis, nPSA12 and pretreatment PSA value had a significant impact on PFS, and in multivariate analysis nPSA12 alone was an independent prognostic factor for PFS after radiotherapy. Conclusions: External beam radiotherapy had an excellent local control rate for clinically localized hormone-refractory prostate cancer, and nPSA12 was predictive of clinical outcomes after radiotherapy.

  4. Automated 3D mapping of baseline and 12-month associations between three verbal memory measures and hippocampal atrophy in 490 ADNI subjects.

    PubMed

    Apostolova, Liana G; Morra, Jonathan H; Green, Amity E; Hwang, Kristy S; Avedissian, Christina; Woo, Ellen; Cummings, Jeffrey L; Toga, Arthur W; Jack, Clifford R; Weiner, Michael W; Thompson, Paul M

    2010-05-15

    We used a previously validated automated machine learning algorithm based on adaptive boosting to segment the hippocampi in baseline and 12-month follow-up 3D T1-weighted brain MRIs of 150 cognitively normal elderly (NC), 245 mild cognitive impairment (MCI) and 97 Dementia of the Alzheimer's type (DAT) ADNI subjects. Using the radial distance mapping technique, we examined the hippocampal correlates of delayed recall performance on three well-established verbal memory tests--ADAScog delayed recall (ADAScog-DR), the Rey Auditory Verbal Learning Test -DR (AVLT-DR) and Wechsler Logical Memory II-DR (LM II-DR). We observed no significant correlations between delayed recall performance and hippocampal radial distance on any of the three verbal memory measures in NC. All three measures were associated with hippocampal volumes and radial distance in the full sample and in the MCI group at baseline and at follow-up. In DAT we observed stronger left-sided associations between hippocampal radial distance, LM II-DR and ADAScog-DR both at baseline and at follow-up. The strongest linkage between memory performance and hippocampal atrophy in the MCI sample was observed with the most challenging verbal memory test-the AVLT-DR, as opposed to the DAT sample where the least challenging test the ADAScog-DR showed strongest associations with the hippocampal structure. After controlling for baseline hippocampal atrophy, memory performance showed regionally specific associations with hippocampal radial distance in predominantly CA1 but also in subicular distribution.

  5. Factors affecting the seroconversion rate of 12-month-old babies after the first injection of measles vaccine in the southeast of Iran.

    PubMed

    Zahraei, Seyed Mohsen; Izadi, Shahrokh; Mokhtari-Azad, Talat

    2016-12-01

    Within the past few years, several measles outbreaks have occurred in the southeast of Iran. To learn about the effectiveness of the immunization services for producing a serologic response against measles, this follow-up study was designed and implemented in the southeast of Iran. In Iran, all routine immunization services provided by the public sector are free of charge. The follow-up study was designed and implemented in 5 Urban Health Centers located in 3 districts of Sistan-va-BaluchestanProvince, Iran. In the pre-vaccination phase, 270 12-month-old babies were blood sampled; and in the post-vaccination phase, 4 to 7 weeks after Measles, Mumps, Rubella (MMR) vaccination, 236 of them were blood sampled (34 dropouts), and their sera were tested for IgG anti-measles antibodies, using indirect ELISA, in the National Reference Measles Laboratory. Out of the 236 participants, who had been blood sampled in the post-vaccination phase, 10 (3.7%) were excluded from the calculations of seroconversion rate, because they had protective levels of antibody before the vaccination. The seroconversion rate for the remaining 226 participants was 91.2% (95% confidence interval: 86.7 to 94.5). Among the variables studied, stunting (height-for-age z-score < -2) showed a strong relationship with the remaining seronegative after the vaccination (odds ratio = 5.6; 95% confidence interval: 1.7-18.2). The chance of seroconversion was inversely related to the mothers' levels of education (up to 9 y of education vs. above nine years) (odds ratio = 0.2; 95% confidence interval: 0.06-0.4). In the study population, the seroconversion rates for anti-measles antibodies after MMR vaccination are acceptable, even though in order to achieve the elimination goal, higher standards need to be achieved.

  6. Updates on the Epidemiology and Pattern of Traumatic Maxillofacial Injuries in a Nigerian University Teaching Hospital: A 12-Month Prospective Cohort In-Hospital Outcome Study

    PubMed Central

    Olusanya, Adeola Adenike; Adeleye, Amos Olufemi; Aladelusi, Timothy Olukunle; Fasola, Abiodun Olubayo

    2014-01-01

    Many studies have been undertaken in Nigeria on maxillofacial trauma. However, only a few have considered both the skeletal and soft tissue injuries (in general) involving all the aspects of the maxillofacial region or considered other etiological sources of trauma apart from road traffic crashes. Fewer still have reviewed the outcome of management of facial injuries in our low-resource environment. This study sets out to examine the recent trends in both the clinical and epidemiological patterns of all facial injuries from all causes seen in a low-resource practice of a developing country. It also assessed the in-hospital treatment outcomes, and the levels of the patients' satisfaction with treatment received in this setting. Over a 12-month period, the clinical records of consecutive patients who were evaluated and treated for maxillofacial injuries in our unit were prospectively acquired, entered into predesigned forms and subsequently analyzed. There were 259 patients (79.5% males) during the study period. The mean age was 32.21( ± 16.588) years. Overall, motor bike crashes, 42.1%, were the commonest source of these traumas; and armed robbery was the commonest form (69.0%) of assault. Mandibular fractures were the commonest maxillofacial fractures (37.8%) whereas head injury had the highest frequency among the associated injuries (71.4%). Closed reduction and immobilization was deployed in 88.0% of those who had treatment and majority was satisfied with the esthetic outcome of the treatment received. Mean length of hospital stay was 12.6 ( ± 4.423) days. Maxillofacial trauma poses a significant socioeconomic burden on affected individuals in this study population. This is made worse by the presence of associated injuries in the other body systems. More local studies on the outcome of management of maxillofacial trauma will improve the available literature in this region. PMID:25709753

  7. Concurrent Heroin Use and Correlates among Methadone Maintenance Treatment Clients: A 12-Month Follow-up Study in Guangdong Province, China

    PubMed Central

    Luo, Xiaofeng; Zhao, Peizhen; Gong, Xiao; Zhang, Lei; Tang, Weiming; Zou, Xia; Chen, Wen; Ling, Li

    2016-01-01

    Objective: To assess concurrent heroin use and correlates among Methadone Maintenance Treatment (MMT) clients in Guangdong Province, China. Method: Demographic and drug use data were collected with a structured questionnaire, and MMT information was obtained from the MMT clinic registration system in Guangdong. Human immunodeficiency virus (HIV-) and hepatitis C virus (HCV) infected status and urine morphine results were obtained from laboratory tests. Logistic regressions were employed to investigate the factors associated with concurrent heroin use. Results: Among the 6848 participants, 75% continued using heroin more than once during the first 12 months after treatment initiation. Concurrent heroin use was associated with inharmonious family relationship (OR (odds ratio) = 1.49, 95% CI (confidence intervals): 1.24–1.78), HIV positivity (OR = 1.25, 95% CI: 1.01–1.55), having multiple sex partners (OR = 1.34, 95% CI: 1.07–1.69), having ever taken intravenous drugs (OR = 0.81, 95% CI: 0.69–0.95), higher maintenance dose (OR = 1.13, 95% CI: 1.01–1.28) and poorer MMT attendance (OR<20% = 1.32, 95% CI: 1.13–1.53; OR20%– = 1.33, 95% CI: 1.14–1.54; OR50%– = 1.69, 95% CI: 1.44–2.00). Among those who used heroin concurrently, the same factors, and additionally being older (OR35– = 1.26, 95% CI: 1.11–1.43; OR≥45 = 1.63, 95% CI: 1.30–2.05) and female (OR = 1.60, 95% CI: 1.28–2.00), contribute to a greater frequency of heroin use. Conclusions: Concurrent heroin use was prevalent among MMT participants in Guangdong, underscoring the urgent needs for tailored interventions and health education programs for this population. PMID:27005649

  8. Report of 12-months efficacy and safety of intravitreal fluocinolone acetonide implant for the treatment of chronic diabetic macular oedema: a real-world result in the United Kingdom.

    PubMed

    Alfaqawi, F; Lip, P L; Elsherbiny, S; Chavan, R; Mitra, A; Mushtaq, B

    2017-04-01

    PurposeTo report the 12-months visual and anatomical outcomes of chronic diabetic macular oedema (DMO) treated with ILUVIEN in a real-world clinical practice in a single tertiary referral centre.MethodRetrospective data collection and analysis of consecutive 28 eyes of 23 diabetic patients received ILUVIEN implant for refractory DMO. Standard assessment included visual acuity (VA), central retinal thickness (CRT), slit-lamp biomicroscopy, and Goldmann tonometry for intraocular pressure (IOP) at 1, 6, and 12 months.ResultsBaseline mean VA was 47 (SD 18) letters improved to 55 (SD 17) letters (P=0.004) at 12 months. VA was improved in 16 eyes (57%), stabilised in 9 eyes (32%), and decreased in 3 eyes (11%). Seven eyes (25%) gained ≥15 letters, and 10 eyes (36%) gained >10 letters from baseline. The percentage of eyes achieved driving vision (≥70 Early Treatment Diabetic Retinopathy Study letters) was doubled from baseline 18 to 36% at 6 months and 32% at 12 months. Mean CRT decreased by 198 μm from baseline 494 μm (SD 191) to 296 μm (SD 121) at 12 months (P<0.001). Two eyes received additional anti-vascular endothelial growth factor injections after 10 months.

  9. Temperature dependence of the point defect properties of GaN thin films studied by terahertz time-domain spectroscopy

    NASA Astrophysics Data System (ADS)

    Fang, HeNan; Zhang, Rong; Liu, Bin; Li, YeCao; Fu, DeYi; Li, Yi; Xie, ZiLi; Zhuang, Zhe; Zheng, YouDou; Wu, JingBo; Jin, BiaoBing; Chen, Jian; Wu, PeiHeng

    2013-11-01

    The dielectric functions of GaN for the temperature and frequency ranges of 10-300 K and 0.3-1 THz are obtained using terahertz time-domain spectroscopy. It is found that there are oscillations of the dielectric functions at various temperatures. Physically, the oscillation behavior is attributed to the resonance states of the point defects in the material. Furthermore, the dielectric functions are well fitted by the combination of the simple Drude model together with the classical damped oscillator model. According to the values of the fitting parameters, the concentration and electron lifetime of the point defects for various temperatures are determined, and the temperature dependences of them are in accordance with the previously reported result. Therefore, terahertz time-domain spectroscopy can be considered as a promising technique for investigating the relevant characteristics of the point defects in semiconductor materials.

  10. Time Series Discord Detection in Medical Data using a Parallel Relational Database [PowerPoint

    SciTech Connect

    Woodbridge, Diane; Wilson, Andrew T.; Rintoul, Mark Daniel; Goldstein, Richard H.

    2015-11-01

    Recent advances in sensor technology have made continuous real-time health monitoring available in both hospital and non-hospital settings. Since data collected from high frequency medical sensors includes a huge amount of data, storing and processing continuous medical data is an emerging big data area. Especially detecting anomaly in real time is important for patients’ emergency detection and prevention. A time series discord indicates a subsequence that has the maximum difference to the rest of the time series subsequences, meaning that it has abnormal or unusual data trends. In this study, we implemented two versions of time series discord detection algorithms on a high performance parallel database management system (DBMS) and applied them to 240 Hz waveform data collected from 9,723 patients. The initial brute force version of the discord detection algorithm takes each possible subsequence and calculates a distance to the nearest non-self match to find the biggest discords in time series. For the heuristic version of the algorithm, a combination of an array and a trie structure was applied to order time series data for enhancing time efficiency. The study results showed efficient data loading, decoding and discord searches in a large amount of data, benefiting from the time series discord detection algorithm and the architectural characteristics of the parallel DBMS including data compression, data pipe-lining, and task scheduling.

  11. Time-Transient Characteristics of a Point-Contact-Type Peltier Device

    NASA Astrophysics Data System (ADS)

    Anzai, Toru; Yamaguchi, Shigeo

    We proposed a new type of Peltier device, and succeeded in the fabrication of the device, which we call a point-contact-type sandwich-structure (PCS). A micro-object can be cooled or heated using our fabricated device. The tip was cooled through the Peltier effect, and a tip temperature of -36.3°C was achieved at a current of 28 A. When current was reversed, the tip was heated and the maximum tip temperature was 251.5°C at a current of 20 A. The PCS Peltier device can be useful in medical treatment and bioelectronics.

  12. Multiple length and time scales of dynamic heterogeneities in model glass-forming liquids: a systematic analysis of multi-point and multi-time correlations.

    PubMed

    Kim, Kang; Saito, Shinji

    2013-03-28

    We report an extensive and systematic investigation of the multi-point and multi-time correlation functions to reveal the spatio-temporal structures of dynamic heterogeneities in glass-forming liquids. Molecular dynamics simulations are carried out for the supercooled states of various prototype models of glass-forming liquids such as binary Kob-Andersen, Wahnström, soft-sphere, and network-forming liquids. While the first three models act as fragile liquids exhibiting super-Arrhenius temperature dependence in their relaxation times, the last is a strong glass-former exhibiting Arrhenius behavior. First, we quantify the length scale of the dynamic heterogeneities utilizing the four-point correlation function. The growth of the dynamic length scale with decreasing temperature is characterized by various scaling relations that are analogous to the critical phenomena. We also examine how the growth of the length scale depends upon the model employed. Second, the four-point correlation function is extended to a three-time correlation function to characterize the temporal structures of the dynamic heterogeneities based on our previous studies [K. Kim and S. Saito, Phys. Rev. E 79, 060501(R) (2009); and J. Chem. Phys. 133, 044511 (2010)]. We provide comprehensive numerical results obtained from the three-time correlation function for the above models. From these calculations, we examine the time scale of the dynamic heterogeneities and determine the associated lifetime in a consistent and systematic way. Our results indicate that the lifetime of the dynamical heterogeneities becomes much longer than the α-relaxation time determined from a two-point correlation function in fragile liquids. The decoupling between the two time scales is remarkable, particularly in supercooled states, and the time scales differ by more than an order of magnitude in a more fragile liquid. In contrast, the lifetime is shorter than the α-relaxation time in tetrahedral network-forming strong

  13. The Effects of Part-Time Employment on High School Students' Grade Point Averages and Rate of School Attendance.

    ERIC Educational Resources Information Center

    Heffez, Jack

    To determine what effects employment will have on high school students' grade point averages and rate of school attendance, the author involved fifty-six students in an experiment. Twenty-eight students were employed part-time under the Youth Incentive Entitlement Project (YIEP). The twenty-eight students in the control group were eligible for…

  14. The Use and Abuse of Part-Time Faculty: The Part-Timers' Point of View.

    ERIC Educational Resources Information Center

    Wilson, Wendy L.

    Problems faced by part-time faculty members are identified, and suggestions to avoid mistreatment of these teachers are offered. Disadvantages of part-time teaching include the lack of equitable pay and benefits. Since most institutions have a standard pay rate for part-timers, it is suggested that teaching excellence be recognized by creating…

  15. Prothrombin time and activated partial thromboplastin time using a point-of-care analyser (Abaxis VSpro®) in Bennett's wallabies (Macropus rufogriseus).

    PubMed

    Nevitt, B N; Chinnadurai, S K; Watson, M K; Langan, J N; Adkesson, M J

    2016-10-01

    There are few reports of coagulation times in marsupial species. Blood samples collected from 14 Bennett's wallabies (Macropus rufogriseus) under anaesthesia during routine health assessments were analysed for prothrombin time (PT) and activated partial thromboplastin time (aPTT) using a point-of-care analyser (POC) (Abaxis VSPro®). The wallabies had an aPTT mean of 78.09 s and median of 78.1 s. The PT for all wallabies was greater than 35 s, exceeding the longest time measured on the POC. Although PT was significantly longer, aPTT was similar to the manufacturer's domestic canine reference range.

  16. A zero-crossing point locking system in the time-of-flight measurement of femtosecond pulsed laser

    NASA Astrophysics Data System (ADS)

    Li, Shuyi; Zhao, Chunbo; Wu, Tengfei; Han, Jibo

    2016-10-01

    The background and principle of zero-crossing point locking technology are introduced in this paper. An experimental locking system is designed to realize fast locking of zero-crossing point, and the results of locking is studied by analyzing zero-crossing point locking signal. In the distance measurement of femtosecond pulsed laser, a crystal produces the balanced cross-correlation (BCC) signal, which signifies the time offset of the target pulses with respect to the reference pulses. By continuously pulling this signal to zero-crossing point, the locking system provides a closed loop control process, which ensures the stability of the zero-crossing point and the precision of measurement. This locking system is mainly made up by five sections. As a core section of system, P-I circuit can optimize the locking state by changing parameters. A frequency counter referenced to the rubidium atomic clock is used to measure the pulse repetition rate with a stability of 10-12 in the sampling rate of 10s in 24 hours, which is helpful to analyze the measurement precision. In the experiment, the result of zero-crossing point lock can reach to 15mV, in other words, the range of amplitude variation can be reduced to less than 15mV after locking. With the repetition rate data evaluated, the jitter of the pulse repetition rate is within 25Hz in the sampling time of 15s after locking the zero-crossing point. It is proved that the locking system designed has a high practical value in the distance and vibration measurement of femtosecond pulsed laser.

  17. GPS Carrier-Phase Time and Frequency Transfer With Different Versions of Precise Point Positioning Software

    DTIC Science & Technology

    2008-12-01

    standards at PTB. For this reason, a Dicom GTR50 time and frequency transfer receiver has been combined with a transportable passive hydrogen maser...comparisons described in this paper have been done with Dicom GTR50 time and frequency transfer receivers. The receiver is based on the Javad GGD...software. Figure 1. The Dicom GTR50 receiver and its mode of operation. In this setup, the precision of the results is limited by the

  18. A hierarchical model combining distance sampling and time removal to estimate detection probability during avian point counts

    USGS Publications Warehouse

    Amundson, Courtney L.; Royle, J. Andrew; Handel, Colleen M.

    2014-01-01

    Imperfect detection during animal surveys biases estimates of abundance and can lead to improper conclusions regarding distribution and population trends. Farnsworth et al. (2005) developed a combined distance-sampling and time-removal model for point-transect surveys that addresses both availability (the probability that an animal is available for detection; e.g., that a bird sings) and perceptibility (the probability that an observer detects an animal, given that it is available for detection). We developed a hierarchical extension of the combined model that provides an integrated analysis framework for a collection of survey points at which both distance from the observer and time of initial detection are recorded. Implemented in a Bayesian framework, this extension facilitates evaluating covariates on abundance and detection probability, incorporating excess zero counts (i.e. zero-inflation), accounting for spatial autocorrelation, and estimating population density. Species-specific characteristics, such as behavioral displays and territorial dispersion, may lead to different patterns of availability and perceptibility, which may, in turn, influence the performance of such hierarchical models. Therefore, we first test our proposed model using simulated data under different scenarios of availability and perceptibility. We then illustrate its performance with empirical point-transect data for a songbird that consistently produces loud, frequent, primarily auditory signals, the Golden-crowned Sparrow (Zonotrichia atricapilla); and for 2 ptarmigan species (Lagopus spp.) that produce more intermittent, subtle, and primarily visual cues. Data were collected by multiple observers along point transects across a broad landscape in southwest Alaska, so we evaluated point-level covariates on perceptibility (observer and habitat), availability (date within season and time of day), and abundance (habitat, elevation, and slope), and included a nested point

  19. Reaction time and movement duration influence on end point accuracy in a fast reaching task.

    PubMed

    Skurvidas, A; Mickevichiene, D; Cesnavichiene, V; Gutnik, B; Nash, D

    2012-01-01

    In labor and sport physiology a great deal of interest concerns the conceptual model of governance of both rapid and precise target-directed movements. Widely known in the theory of motor control, Fitts' paradigm determines the time of motion, calculated from the distance to the target and the diameter of the target. However this paradigm does not take into account the time of preparation for movement, which can have a significant impact on accuracy. In addition, the literature highlights little evidence of temporal and spatial asymmetry in the production of fast and accurate movements. The aim of our work was to investigate the influence of the duration of the preparatory phase (reaction time - T(R)) and duration of protractile motion of the arm (T(M)) on the speed and accuracy of movement. Also, the in-dividual asymmetry of the temporal characteristics and accuracy of performance of movements were studied. We measured three aspects of translational motion of the arm to the computerized target: reaction time (T(R), s), time of motion of the arm (T(M), s), and error in the achievement of the target (deltaL, mm). The group of participants consisted of 12 healthy, right-handed, untrained girls, each of whom completed 5 series of 10 discrete movements by each of the left and right arms. Mathematical analysis of the results revealed the existence of five models of performance. Each model was represented in the participant's performance with different probability. The combination of high speed and high precision when the arm moved towards the target was found only in model 5, which combines a long period of preparation for the movement (T(R)) and a short time of motion (T(M)). The probability of its occurrence in the untrained subjects was very low (2-3%). We suggest that it may be possible to develop special methods of training, geared towards the ability to increase the probability of appearance of this model. Asymmetry of motor action appeared clearly evident only in

  20. Atmospheric plume progression as a function of time and distance from the release point for radioactive isotopes

    SciTech Connect

    Eslinger, Paul W.; Bowyer, Ted W.; Cameron, Ian M.; Hayes, James C.; Miley, Harry S.

    2015-10-01

    The International Monitoring System contains up to 80 stations around the world that have aerosol and xenon monitoring systems designed to detect releases of radioactive materials to the atmosphere from nuclear tests. A rule of thumb description of plume concentration and duration versus time and distance from the release point is useful when designing and deploying new sample collection systems. This paper uses plume development from atmospheric transport modeling to provide a power-law rule describing atmospheric dilution factors as a function of distance from the release point.

  1. Timing readout in paper device for quantitative point-of-use hemin/G-quadruplex DNAzyme-based bioassays.

    PubMed

    Zhang, Yun; Fan, Jinlong; Nie, Jinfang; Le, Shangwang; Zhu, Wenyuan; Gao, Dong; Yang, Jiani; Zhang, Songbai; Li, Jianping

    2015-11-15

    This work describes a quantitative point-of-use hemin/G-quadruplex DNAzyme-based assay that integrates a simple timing detection motif with low-cost, portable microfluidic paper-based analytical devices (μPADs). The timing readout is based on the selective DNAzyme-mediated wettability change of paper from hydrophilicity to hydrophobicity. Its utility is well demonstrated with sensitive, specific detection of K(+) ion as a model analyte in artificial samples as well as real human serum samples. This new method only requires a ubiquitous cheap timer (or a cell phone with a timing function) to provide quantitative results. It could offer new opportunities for the development of more peroxidase-mimicking DNAzyme-based bioassays that are simple, affordable, portable, and operable by minimally-trained users for broad point-of-use applications especially in resource-poor settings.

  2. Drive time to cardiac rehabilitation: at what point does it affect utilization?

    PubMed Central

    2010-01-01

    Background A 30 minute drive time threshold has often been cited as indicative of accessible health services. Cardiac rehabilitation (CR) is a chronic disease management program designed to enhance and maintain cardiovascular health, and geographic barriers to utilization are often cited. The purpose of this study was to empirically test the drive time threshold for CR utilization. Methods A prospective study, using a multi-level design of coronary artery disease outpatients nested within 97 cardiologists. Participants completed a baseline sociodemographic survey, and reported CR referral, enrollment and participation in a second survey 9 months later. CR utilization was verified with CR sites. Geographic information systems were used to generate drive times at 60, 80 and 100% of the speed limit to the closest CR site from participants' homes, to take into consideration various traffic conditions. Bivariate analysis was used to test for differences in CR referral, enrollment and degree of participation by drive time. Logistic regression was used to test drive time increments where significant differences were found. Results Drive times were generated for 1209 outpatients. Overall, CR referral was verified for 523 (43.3%) outpatients, with verified enrollment for 444 (36.7%) participating in a mean of 86.4 ± 25.7% of prescribed sessions. There were significant differences in CR referral and enrollment by drive time (ps < .01), but not degree of participation. Logistic regression analysis (ps < .001) revealed that the drive time threshold at 80% of the posted speed limit for physician referral may be 60 minutes (OR = .26, 95% CI: 0.13-0.55), and the threshold for patient CR enrollment may also be 60 minutes (OR = .11, 95% CI: 0.04-0.33). Conclusions Physicians may be taking geography into consideration when referring patients to CR. Empirical consideration also reveals that patients are significantly less likely to enroll in CR where they must drive 60 minutes or

  3. Time delay of critical images of a point source near the gravitational lens fold-caustic

    NASA Astrophysics Data System (ADS)

    Alexandrov, A.; Zhdanov, V.

    2016-06-01

    Within the framework of the analytical theory of the gravitational lensing we derive asymptotic formula for the time delay of critical images of apoint source, which is situated near a fold-caustic. We found corrections of the first and second order in powers of a parameter, which describescloseness of the source to the caustic. Our formula modifies earlier result by Congdon, Keeton &Nordgren (MNRAS, 2008) obtained in zero-orderapproximation. We have proved the hypothesis put forward by these authors that the first-order correction to the relative time delay of two criticalmages is identically zero. The contribution of the corrections is illustrated in model example by comparison with exact expression.

  4. [Forestalling policy as a strategic objective of space biology and medicine at the present time point].

    PubMed

    Ushakov, I B

    2011-01-01

    The article ushers into the acrimonious debates about paths of innovative development and criticality of fundamental sciences in technological progress for Russia security, and breakthrough potential. Among the alternative routes of technical development are different forms of priority boost of growing points in which Russia has attained and held steadily the leading position occupying a prominent segment in the international division of labor. Space effort of Russia gives a model example of successful implementation of the national program and demonstrates leadership in this area of human activities. The article presents analysis of the factors and circumstances that predetermined the winning in the early, Gagarin's period of piloted space flights of the forefront position of the country as well as the vector of cosmonautics' advance for many years ahead Despite the host of issues with implementation of the ISS utilization program and planning of exploration missions to the Moon and Mars, the unique experience of preparations and carrying out investigations and tests with humans in space, the enormous groundwork in fundamental biomedical researches over the past 50 years of piloted flights allow optimistic prognosis of gaining headway with essentially new ambitious space projects. The key question is whether the forestalling policy of priority development of piloted cosmonautics as the most integrated and science intensive sector of innovation techniques will be realized. The answer will guide near- and long-term future of the space industry and, consequently, the fortune of national fundamental space sciences, space biomedicine being its part and parcel.

  5. The cryptococcal antigen lateral flow assay: A point-of-care diagnostic at an opportune time.

    PubMed

    Tang, Michele W; Clemons, Karl V; Katzenstein, David A; Stevens, David A

    2016-08-01

    Cryptococcal meningitis is a devastating HIV-related opportunistic infection, affecting nearly 1 million individuals and causing over 500 000 deaths each year. The burden of disease is greatest in sub-Saharan Africa and Southeast Asia, where cryptococcal disease is the most common cause of meningitis. Rapid, accurate and affordable diagnosis of cryptococcal disease has been lacking in many of the most heavily affected areas. Here, we review a point-of-care assay for cryptococcal disease, the dipstick-formatted cryptococcal antigen lateral flow assay (LFA) (IMMY, Norman, OK). In comparison to culture, the assay is 99.5% sensitive and 98% specific. In comparison to other commercially available tests for cryptococcal antigen, the LFA has equal or superior sensitivity and specificity in CSF, plasma and serum samples. We discuss potential applications for the use of the assay in resource-limited settings, including what is likely to be an important role of the LFA in screening for early cryptococcal infection before clinical disease and in evaluating pre-emptive treatment.

  6. Breast Health Intervention Effects on Knowledge and Beliefs Over Time Among Chinese American Immigrants--a Randomized Controlled Study.

    PubMed

    Lee-Lin, Frances; Pedhiwala, Nisreen; Nguyen, Thuan; Menon, Usha

    2015-09-01

    Chinese American immigrant women, nonadherent with mammography in the past 12 months, (N = 300) were enrolled in a randomized controlled trial designed to change knowledge and beliefs and increase mammogram use. This report describes intervention effects on changes in knowledge and beliefs between the control and educational groups over four time points (baseline and 3, 6, and 12 months). Variables measured included knowledge, perceived susceptibility, perceived general barriers to mammography, perceived benefits to mammography, and four cultural barriers to mammography (crisis orientation, modesty, use of Eastern medicine, reliance on others). At all three post-intervention time points, women in the education group had significantly higher knowledge scores than those in the control group, regardless of whether they had completed a mammogram during the study. Women in the education group reported higher perceived susceptibility to breast cancer at 3-month post-intervention. At 3- and 6-month post-intervention, regardless of mammogram screening completion, women reported lower concerns about modesty related to mammography when compared to the control group. By the 12-month post-intervention, women in the education group reported significantly fewer perceived barriers than the control group. A targeted breast health program successfully changed breast health knowledge and beliefs that were sustained for up to 6-12 months. Education targeted to women's knowledge and beliefs has significant potential for decreasing disparity in mammogram use among Chinese American immigrant women.

  7. [Multiple time scales analysis of spatial differentiation characteristics of non-point source nitrogen loss within watershed].

    PubMed

    Liu, Mei-bing; Chen, Xing-wei; Chen, Ying

    2015-07-01

    Identification of the critical source areas of non-point source pollution is an important means to control the non-point source pollution within the watershed. In order to further reveal the impact of multiple time scales on the spatial differentiation characteristics of non-point source nitrogen loss, a SWAT model of Shanmei Reservoir watershed was developed. Based on the simulation of total nitrogen (TN) loss intensity of all 38 subbasins, spatial distribution characteristics of nitrogen loss and critical source areas were analyzed at three time scales of yearly average, monthly average and rainstorms flood process, respectively. Furthermore, multiple linear correlation analysis was conducted to analyze the contribution of natural environment and anthropogenic disturbance on nitrogen loss. The results showed that there were significant spatial differences of TN loss in Shanmei Reservoir watershed at different time scales, and the spatial differentiation degree of nitrogen loss was in the order of monthly average > yearly average > rainstorms flood process. TN loss load mainly came from upland Taoxi subbasin, which was identified as the critical source area. At different time scales, land use types (such as farmland and forest) were always the dominant factor affecting the spatial distribution of nitrogen loss, while the effect of precipitation and runoff on the nitrogen loss was only taken in no fertilization month and several processes of storm flood at no fertilization date. This was mainly due to the significant spatial variation of land use and fertilization, as well as the low spatial variability of precipitation and runoff.

  8. Free-Time and Fixed End-Point Optimal Control Theory in Quantum Mechanics: Application to Entanglement Generation

    NASA Astrophysics Data System (ADS)

    Mishima, Kenji; Yamashita, Koichi

    2009-03-01

    We have constructed free-time and fixed end-point optimal control theory for quantum systems and applied it to entanglement generation between rotational modes of two polar molecules coupled by dipole-dipole interaction. The motivation of the present work is to solve optimal control problems more flexibly by extending the popular fixed-time and fixed end-point optimal control theory for quantum systems to free-time and fixed end-point optimal control theory. Our theory can not only achieve high transition probabilities but also determine exact temporal duration of the laser pulses. As a demonstration, our theory is applied to entanglement generation in rotational modes of NaCl-NaBr polar molecular systems that are sensitive to the strength of entangling interactions. Using the tailored laser pulses, we discuss the fidelity of entanglement distillation and quantum teleportation. Our method will significantly be useful for the quantum control of non-local interaction such as entangling interaction, and other time-sensitive general quantum dynamics, chemical reactions.

  9. Joint transfer of time and frequency signals and multi-point synchronization via fiber network

    NASA Astrophysics Data System (ADS)

    Nan, Cheng; Wei, Chen; Qin, Liu; Dan, Xu; Fei, Yang; You-Zhen, Gui; Hai-Wen, Cai

    2016-01-01

    A system of jointly transferring time signals with a rate of 1 pulse per second (PPS) and frequency signals of 10 MHz via a dense wavelength division multiplex-based (DWDM) fiber is demonstrated in this paper. The noises of the fiber links are suppressed and compensated for by a controlled fiber delay line. A method of calibrating and characterizing time is described. The 1PPS is synchronized by feed-forward calibrating the fiber delays precisely. The system is experimentally examined via a 110 km spooled fiber in laboratory. The frequency stabilities of the user end with compensation are 1.8×10-14 at 1 s and 2.0×10-17 at 104 s average time. The calculated uncertainty of time synchronization is 13.1 ps, whereas the direct measurement of the uncertainty is 12 ps. Next, the frequency and 1PPS are transferred via a metropolitan area optical fiber network from one central site to two remote sites with distances of 14 km and 110 km. The frequency stabilities of 14 km link reach 3.0×10-14 averaged in 1 s and 1.4×10-17 in 104 s respectively; and the stabilities of 110 km link are 8.3×10-14 and 1.7×10-17, respectively. The accuracies of synchronization are estimated to be 12.3 ps for the 14 km link and 13.1 ps for the 110 km link, respectively. Project supported by the National Natural Science Foundation of China (Grant No. 61405227).

  10. Real-time performance analysis of wireless multimedia networks based on partially observed multivariate point processes

    NASA Astrophysics Data System (ADS)

    Hortos, William S.

    2000-07-01

    Third-generation (3G) wireless networks will support integrated multimedia services based on a cellular extension of a packet-switched architecture using variants of the Internet protocol (IP). Services can be categorized as real- time and delay-sensitive, or non-real-time and delay- insensitive. Each call, arriving to or active within the network, carries demand for one or more services in parallel; each service type with a guaranteed quality of service (QoS). Admission of new calls to the wireless IP network (WIN) from the gateway of a wired network or from a mobile subscriber (MS) is allowed by call admission control procedures. Roaming of the MSs among the nodes of the WIN is controlled by handoff procedures between base stations (BSs), or BS controllers, and the MSs. Metrics such as the probabilities of call blocking and dropping, handoff transition time, processing latency of a call, throughput, and capacity are used to evaluate the performance of network control procedures. The metrics are directly related to the network resources required to provide the QoS for the integrated services.

  11. Deparaffination time: a crucial point in histochemical detection of tissue copper.

    PubMed

    Nemolato, Sonia; Serra, S; Saccani, S; Faa, G

    2008-01-01

    The search for a sensitive histochemical method for revealing tissue copper has been the object of many workers in the past. In spite of multiple methods available, the occurrence in clinical practice of negative histochemical stains, even in cases with high copper levels demonstrated by quantitative methods is very high.This study was aimed at verifying the role of technical variations in the sensitivity of the Timm method and, in particular, the role of the dewaxing time of paraffin sections. To this end, 15 liver specimens, 10 from patients affected by Wilson's disease and 5 newborn livers were fixed in 10% formalin, paraffin embedded and routinaly processed. Four 4-micron sections from each case were rinsed in xylene for 10, 20, 60 min, and for 24 hrs. All sections were stained with Timm's method. In 13 out of the 15 liver biopsies utilized in this study, the sensitivity of Timm's method in revealing copper deposits in liver cells appeared to be dependent on the dewaxing time. In two other cases, reactivity of copper granules to Timm solution did not change significantly with the different deparaffination times. The best results were obtained by rinsing sections in xylene for 24 hrs, the worst in sections treated with xylen for 10 minutes. In particular, in five cases of Wilson's disease, Timm stain applied to sections following ten minutes of xylene were completely negative, while copper granules were clearly evidenced in the same section following an overnight bath in xylene. Our data show that an overnight bath of paraffin sections in xylene may completely change the sensitivity of Timm stain in revealing copper deposits in the liver, relaunching copper histochemistry in the diagnosis of copper-related liver diseases.

  12. Solar glare hazard analysis tool on account of determined points of time

    SciTech Connect

    Ho, Clifford K; Sims, Cianan Alexander

    2014-09-23

    Technologies pertaining to determining when glare will be perceived by a hypothetical observer from a glare source and the intensity of glare that will be perceived by the hypothetical observer from the glare source are described herein. A first location of a potential source of solar glare is received, and a second location of the hypothetical observer is received. Based upon such locations, including respective elevations, and known positions of the sun over time, a determination as to when the hypothetical observer will perceive glare from the potential source of solar glare is made. Subsequently, an amount of irradiance entering the eye of the hypothetical observer is calculated to assess potential ocular hazards.

  13. Real-Time Point Positioning Performance Evaluation of Single-Frequency Receivers Using NASA's Global Differential GPS System

    NASA Technical Reports Server (NTRS)

    Muellerschoen, Ronald J.; Iijima, Byron; Meyer, Robert; Bar-Sever, Yoaz; Accad, Elie

    2004-01-01

    This paper evaluates the performance of a single-frequency receiver using the 1-Hz differential corrections as provided by NASA's global differential GPS system. While the dual-frequency user has the ability to eliminate the ionosphere error by taking a linear combination of observables, the single-frequency user must remove or calibrate this error by other means. To remove the ionosphere error we take advantage of the fact that the magnitude of the group delay in range observable and the carrier phase advance have the same magnitude but are opposite in sign. A way to calibrate this error is to use a real-time database of grid points computed by JPL's RTI (Real-Time Ionosphere) software. In both cases we evaluate the positional accuracy of a kinematic carrier phase based point positioning method on a global extent.

  14. Spinodals and critical point using short-time dynamics for a simple model of liquid.

    PubMed

    Loscar, Ernesto S; Ferrara, C Gastón; Grigera, Tomás S

    2016-04-07

    We have applied the short-time dynamics method to the gas-liquid transition to detect the supercooled gas instability (gas spinodal) and the superheated liquid instability (liquid spinodal). Using Monte Carlo simulation, we have obtained the two spinodals for a wide range of pressure in sub-critical and critical conditions and estimated the critical temperature and pressure. Our method is faster than previous approaches and allows studying spinodals without needing equilibration of the system in the metastable region. It is thus free of the extrapolation problems present in other methods, and in principle could be applied to systems such as glass-forming liquids, where equilibration is very difficult even far from the spinodal. We have also done molecular dynamics simulations, where we find the method again able to detect the both spinodals. Our results are compared with different previous results in the literature and show a good agreement.

  15. Postsecondary Institutions and Price of Attendance in the United States: Fall 2009, Degrees and Other Awards Conferred: 2008-09, and 12-Month Enrollment: 2008-09. First Look. NCES 2010-161

    ERIC Educational Resources Information Center

    Knapp, Laura G.; Kelly-Reid, Janice E.; Ginder, Scott A.

    2010-01-01

    This "First Look" presents findings from the Integrated Postsecondary Education Data System (IPEDS) fall 2009 data collection, which included three survey components: Institutional Characteristics for the 2009-10 academic year, Completions covering the period July 1, 2008, through June 30, 2009, and 12-Month Enrollment covering academic…

  16. The shift from high to low turnover bone disease after parathyroidectomy is associated with the progression of vascular calcification in hemodialysis patients: A 12-month follow-up study.

    PubMed

    Hernandes, Fabiana Rodrigues; Canziani, Maria Eugênia Fernandes; Barreto, Fellype Carvalho; Santos, Rodrigo Oliveira; Moreira, Valéria de Melo; Rochitte, Carlos Eduardo; Carvalho, Aluizio Barbosa

    2017-01-01

    Parathyroidectomy (PTX) may cause low levels of PTH, leading to an excessive reduction of bone turnover, which is associated with poor outcomes in dialysis patients, including vascular calcification (VC). We aimed to prospectively investigate the impact of PTX on bone remodeling and its potential consequence on the progression of VC in hemodialysis patients. In this prospective study, 19 hemodialysis patients with severe secondary hyperparathyroidism (sHPT) were evaluated. All patients underwent laboratorial tests and coronary tomography at baseline and, 6 and 12 months after PTX; bone biopsy was performed at baseline and 12-month. At baseline, all patients had increased PTH levels up to 2500 pg/mL and high turnover bone disease in their bone biopsies. Fourteen (74%) patients had VC. During the follow-up, there was a significant decrease of PTH at 6 and 12-month. At 12-month, 90% of the patients evolved to low turnover bone disease. During the period of the hungry bone syndrome (first 6 months), no change of coronary calcium score was observed. However, calcium score increased significantly thereafter (12th month). There was an association between VC progression and the severity of low turnover bone disease. In conclusion, the shift from high to low turnover bone disease after PTX occurs in parallel to VC progression, contributing to the understanding of the complex pathophysiology involving mineral metabolism and cardiovascular disease in hemodialysis patients.

  17. Multiple Time Courses of Vestibular Set-Point Adaptation Revealed by Sustained Magnetic Field Stimulation of the Labyrinth.

    PubMed

    Jareonsettasin, Prem; Otero-Millan, Jorge; Ward, Bryan K; Roberts, Dale C; Schubert, Michael C; Zee, David S

    2016-05-23

    A major focus in neurobiology is how the brain adapts its motor behavior to changes in its internal and external environments [1, 2]. Much is known about adaptively optimizing the amplitude and direction of eye and limb movements, for example, but little is known about another essential form of learning, "set-point" adaptation. Set-point adaptation balances tonic activity so that reciprocally acting, agonist and antagonist muscles have a stable platform from which to launch accurate movements. Here, we use the vestibulo-ocular reflex-a simple behavior that stabilizes the position of the eye while the head is moving-to investigate how tonic activity is adapted toward a new set point to prevent eye drift when the head is still [3, 4]. Set-point adaptation was elicited with magneto-hydrodynamic vestibular stimulation (MVS) by placing normal humans in a 7T MRI for 90 min. MVS is ideal for prolonged labyrinthine activation because it mimics constant head acceleration and induces a sustained nystagmus similar to natural vestibular lesions [5, 6]. The MVS-induced nystagmus diminished slowly but incompletely over multiple timescales. We propose a new adaptation hypothesis, using a cascade of imperfect mathematical integrators, that reproduces the response to MVS (and more natural chair rotations), including the gradual decrease in nystagmus as the set point changes over progressively longer time courses. MVS set-point adaptation is a biological model with applications to basic neurophysiological research into all types of movements [7], functional brain imaging [8], and treatment of vestibular and higher-level attentional disorders by introducing new biases to counteract pathological ones [9].

  18. Stable long-time semiclassical description of zero-point energy in high-dimensional molecular systems.

    PubMed

    Garashchuk, Sophya; Rassolov, Vitaly A

    2008-07-14

    Semiclassical implementation of the quantum trajectory formalism [J. Chem. Phys. 120, 1181 (2004)] is further developed to give a stable long-time description of zero-point energy in anharmonic systems of high dimensionality. The method is based on a numerically cheap linearized quantum force approach; stabilizing terms compensating for the linearization errors are added into the time-evolution equations for the classical and nonclassical components of the momentum operator. The wave function normalization and energy are rigorously conserved. Numerical tests are performed for model systems of up to 40 degrees of freedom.

  19. Multiple length and time scales of dynamic heterogeneities in model glass-forming liquids: A systematic analysis of multi-point and multi-time correlations

    NASA Astrophysics Data System (ADS)

    Kim, Kang; Saito, Shinji

    2013-03-01

    We report an extensive and systematic investigation of the multi-point and multi-time correlation functions to reveal the spatio-temporal structures of dynamic heterogeneities in glass-forming liquids. Molecular dynamics simulations are carried out for the supercooled states of various prototype models of glass-forming liquids such as binary Kob-Andersen, Wahnström, soft-sphere, and network-forming liquids. While the first three models act as fragile liquids exhibiting super-Arrhenius temperature dependence in their relaxation times, the last is a strong glass-former exhibiting Arrhenius behavior. First, we quantify the length scale of the dynamic heterogeneities utilizing the four-point correlation function. The growth of the dynamic length scale with decreasing temperature is characterized by various scaling relations that are analogous to the critical phenomena. We also examine how the growth of the length scale depends upon the model employed. Second, the four-point correlation function is extended to a three-time correlation function to characterize the temporal structures of the dynamic heterogeneities based on our previous studies [K. Kim and S. Saito, Phys. Rev. E 79, 060501-R (2009), 10.1103/PhysRevE.79.060501; K. Kim and S. Saito, J. Chem. Phys. 133, 044511 (2010), 10.1063/1.3464331]. We provide comprehensive numerical results obtained from the three-time correlation function for the above models. From these calculations, we examine the time scale of the dynamic heterogeneities and determine the associated lifetime in a consistent and systematic way. Our results indicate that the lifetime of the dynamical heterogeneities becomes much longer than the α-relaxation time determined from a two-point correlation function in fragile liquids. The decoupling between the two time scales is remarkable, particularly in supercooled states, and the time scales differ by more than an order of magnitude in a more fragile liquid. In contrast, the lifetime is shorter

  20. Maternal–Fetal Transfer of Domoic Acid in Rats at Two Gestational Time Points

    PubMed Central

    Maucher, Jennifer M.; Ramsdell, John S.

    2007-01-01

    Background and objectives Prenatal exposure to asymptomatic doses of domoic acid (DA) causes learning and memory deficits later in life; therefore, we sought to measure distribution of DA in maternal plasma and brain, prenatal brain, and amniotic fluid 1 hr after exposure, a time frame that normally encompasses acute seizure behavior. Methods Pregnant rats were given a single intravenous dose of DA (0.6 or 1.6 mg/kg body weight) at either gestational day (GD) 13 or GD20, which correspond to the beginning of rat embryo neurogenesis and the last day of gestation, respectively. Using a direct ELISA, dose-dependent levels of DA were detected in each sample matrix tested. Results An average of 6.6 and 14 ng DA/g brain tissue was found in GD13 and GD20 prenatal rats, respectively. Brain concentrations of DA in the GD13 prenates were identical to amniotic fluid levels, consistent with no restriction for DA to enter the GD13 prenatal brain. At GD20 the prenatal brain contained half the concentration of DA in the amniotic fluid, and was approximately half that found in the brain of the dams. After 1 hr, fetal brain and amniotic fluid contained between 1 and 5% of DA found in the maternal circulation. The amniotic fluid levels of DA in this study were also within the same range measured in stranded California sea lions that showed reproductive failure. Conclusions DA crosses the placenta, enters brain tissue of prenates, and accumulates in the amniotic fluid. Amniotic fluid appears to be a useful fluid to monitor DA exposure. PMID:18087593

  1. Adaptive marker-free registration using a multiple point strategy for real-time and robust endoscope electromagnetic navigation.

    PubMed

    Luo, Xiongbiao; Wan, Ying; He, Xiangjian; Mori, Kensaku

    2015-02-01

    Registration of pre-clinical images to physical space is indispensable for computer-assisted endoscopic interventions in operating rooms. Electromagnetically navigated endoscopic interventions are increasingly performed at current diagnoses and treatments. Such interventions use an electromagnetic tracker with a miniature sensor that is usually attached at an endoscope distal tip to real time track endoscope movements in a pre-clinical image space. Spatial alignment between the electromagnetic tracker (or sensor) and pre-clinical images must be performed to navigate the endoscope to target regions. This paper proposes an adaptive marker-free registration method that uses a multiple point selection strategy. This method seeks to address an assumption that the endoscope is operated along the centerline of an intraluminal organ which is easily violated during interventions. We introduce an adaptive strategy that generates multiple points in terms of sensor measurements and endoscope tip center calibration. From these generated points, we adaptively choose the optimal point, which is the closest to its assigned the centerline of the hollow organ, to perform registration. The experimental results demonstrate that our proposed adaptive strategy significantly reduced the target registration error from 5.32 to 2.59 mm in static phantoms validation, as well as from at least 7.58 mm to 4.71 mm in dynamic phantom validation compared to current available methods.

  2. Timed Rise from Floor as a Predictor of Disease Progression in Duchenne Muscular Dystrophy: An Observational Study

    PubMed Central

    Mazzone, Elena S.; Coratti, Giorgia; Sormani, Maria Pia; Messina, Sonia; Pane, Marika; D'Amico, Adele; Colia, Giulia; Fanelli, Lavinia; Berardinelli, Angela; Gardani, Alice; Lanzillotta, Valentina; D’Ambrosio, Paola; Petillo, Roberta; Cavallaro, Filippo; Frosini, Silvia; Bello, Luca; Bonfiglio, Serena; De Sanctis, Roberto; Rolle, Enrica; Forcina, Nicola; Magri, Francesca; Vita, Gianluca; Palermo, Concetta; Donati, Maria Alice; Procopio, Elena; Arnoldi, Maria Teresa; Baranello, Giovanni; Mongini, Tiziana; Pini, Antonella; Battini, Roberta; Pegoraro, Elena; Torrente, Yvan; Previtali, Stefano C.; Bruno, Claudio; Politano, Luisa; Comi, Giacomo P.; D’Angelo, Maria Grazia; Bertini, Enrico; Mercuri, Eugenio

    2016-01-01

    Background The role of timed items, and more specifically, of the time to rise from the floor, has been reported as an early prognostic factor for disease progression and loss of ambulation. The aim of our study was to investigate the possible effect of the time to rise from the floor test on the changes observed on the 6MWT over 12 months in a cohort of ambulant Duchenne boys. Subjects and methods A total of 487 12-month data points were collected from 215 ambulant Duchenne boys. The age ranged between 5.0 and 20.0 years (mean 8.48 ±2.48 DS). Results The results of the time to rise from the floor at baseline ranged from 1.2 to 29.4 seconds in the boys who could perform the test. 49 patients were unable to perform the test at baseline and 87 at 12 month The 6MWT values ranged from 82 to 567 meters at baseline. 3 patients lost the ability to perform the 6mwt at 12 months. The correlation between time to rise from the floor and 6MWT at baseline was high (r = 0.6, p<0.01). Conclusions Both time to rise from the floor and baseline 6MWT were relevant for predicting 6MWT changes in the group above the age of 7 years, with no interaction between the two measures, as the impact of time to rise from the floor on 6MWT change was similar in the patients below and above 350 m. Our results suggest that, time to rise from the floor can be considered an additional important prognostic factor of 12 month changes on the 6MWT and, more generally, of disease progression. PMID:26982196

  3. Real time, TV-based, point-image quantizer and sorter

    DOEpatents

    Case, Arthur L.; Davidson, Jackson B.

    1976-01-01

    A device is provided for improving the vertical resolution in a television-based, two-dimensional readout for radiation detection systems such as are used to determine the location of light or nuclear radiation impinging a target area viewed by a television camera, where it is desired to store the data indicative of the centroid location of such images. In the example embodiment, impinging nuclear radiation detected in the form of a scintillation occurring in a crystal is stored as a charge image on a television camera tube target. The target is scanned in a raster and the image position is stored according to a corresponding vertical scan number and horizontal position num