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Sample records for roland chin ting-chuen

  1. Chin augmentation.

    PubMed

    Choe, K S; Stucki-McCormick, S U

    2000-01-01

    The primary goal of facial aesthetic surgery is to restore, enhance, and rejuvenate the aging face to a more youthful appearance, achieving balance and harmony. The mental area must be addressed in order to have a complete synthesis of the face. The concept of augmenting the mental area with implants has evolved so significantly that it now stands by itself as an important procedure. Various autogenous implants for chin augmentation have been in use for over 100 years but have complications. The advent of synthetic materials has given rise to various types of alloplastic implants: Gore-Tex, Medpor, Supramid, Silastic, and Mersilene. No one implant is perfect for every face. This article overviews several alloplastic implants--their advantages, disadvantages, and complications, in addition to the different techniques of preparing and delivering the implants. PMID:11802346

  2. Numb Chin Syndrome.

    PubMed

    Smith, Ryan M; Hassan, Anhar; Robertson, Carrie E

    2015-09-01

    "Numb chin syndrome" (NCS) refers to new-onset numbness of the lower lip and chin within the distribution of the mental or inferior alveolar nerves. While this focal numbness may be downplayed or even overlooked by patients and clinicians, in the right clinical scenario this may be the presenting symptom of an underlying malignancy. In the absence of any obvious, temporally related dental cause, there are certain conditions that clinicians should consider including orofacial and systemic malignancies as well as several inflammatory disorders. Thorough diagnostic evaluation should always be performed when no clear cause is evident. This paper will discuss the differential, recommended evaluations, and the prognosis, for a patient presenting with NCS. PMID:26210355

  3. Autosomal dominant rolandic epilepsy with speech dyspraxia.

    PubMed

    Scheffer, I E

    2000-01-01

    Autosomal Dominant Rolandic Epilepsy with Speech Dyspraxia (ADRESD) is a rare disorder which highlights the relationship between Benign Rolandic Epilepsy (BRE) and speech and language disorders. Subtle speech and language disorders have recently been well characterised in BRE. ADRESD is associated with long term, more severe speech and language difficulties. The time course of rolandic epilepsy in ADRESD is typical of that of BRE. ADRESD is inherited in an autosomal dominant manner with anticipation. It is postulated that the anticipation may be due to an, as yet unidentified, triplet repeat expansion in a gene for rolandic epilepsy. BRE follows complex inheritance but it is possible that ADRESD may hold some valuable clues to the pathogenesis of BRE. PMID:11231219

  4. Chin force in violin playing.

    PubMed

    Obata, Satoshi; Kinoshita, Hiroshi

    2012-06-01

    Force generated between the left mandible of violinists and the chinrest of the violin was examined using a force-sensing chinrest developed in this study. A strain-gauge force sensor was built, and it was fixed between the violin's top plate and a chin cup. Fifteen professional/amateur violinists held the violin statically, played musical scales with different sound properties and sounding techniques, as well as an excerpt from a Max Bruch concerto. Peak and mean forces were evaluated for each task. In a separate experiment, lateral movement of the lower teeth due to different levels of voluntary chin force exertion was measured. Static holding forces observed were 15 and 22 N with and without the help of the left hand, respectively. Peak force increased from 16 N at soft dynamics to 20 N at strong dynamics during scales. The force further increased to 29 N with the use of vibrato technique and 35 N during shifts. Tempo and hand position did not affect the force. Playing a Bruch concerto induced a mean peak force of 52 N, ranging from 31 to 82 N among the violinists. The developed force-sensing chinrest could accurately record the generated chin force. Typical chin force to stabilize the violin during ordinary musical performance was less than 30 N, but it could momentarily exceed 50 N when technically demanding musical pieces were performed. The lateral shift of the mandible was fairly small (<0.4 mm) even with high chin-force exertion, possibly due to clenching of the molars. PMID:21952980

  5. Academic Performance in Children with Rolandic Epilepsy

    ERIC Educational Resources Information Center

    Piccinelli, P.; Borgatti, R.; Aldini, A.; Bindelli, D.; Ferri, M.; Perna, S.; Pitillo, G.; Termine, C.; Zambonin, F.; Balottin, U.

    2008-01-01

    The aim of this study was to investigate the frequency of reading, writing, and calculation disabilities in children with typical rolandic epilepsy (RE) and healthy control children. We also aimed to define the possible electroclinical markers of specific cognitive dysfunctions in RE. School abilities were evaluated and compared in 20 children…

  6. Obituary: Roland Svensson, 1950-2003

    NASA Astrophysics Data System (ADS)

    Björnsson, Claes-Ingvar

    2003-12-01

    Roland Svensson was found dead on 8 April 2003. He succumbed to the complications arising from diabetes. His contribution to the understanding of the basic properties of relativistic plasmas remains a cornerstone when studying radiation processes in many astrophysical contexts. Roland was born on 6 May 1950 in Karlshamn, Sweden. At a young age he moved with his family to Skåne, the southernmost part of Sweden. This is where he received his early education including a BS in Physics at the University of Lund in 1973. For the rest of his life, this region was home for Roland. His mother and father are Linnea Martinsson (d. 1984) and Sune Svensson. The two younger brothers are Lennart and Peter. Lennart works as a machine engineer in Sweden while Peter has settled in California as a biology professor. Roland started graduate studies in theoretical physics in Lund before receiving a Fulbright Scholarship in 1976. He then moved to the University of California in Santa Cruz and enrolled in the astronomy and astrophysics graduate program. Although his interest in astronomy had been raised during the time in Lund, it was the stimulating environment in Santa Cruz that convinced Roland to concentrate on research in astronomy. With Roland's attitude of never accepting anything unless he understood its roots, his extended background in physics served him well throughout his astronomy career; in particular, it influenced his choice of a thesis topic. At the time, the importance of relativistic temperatures attained by accreting matter in the immediate vicinity of neutron stars and black holes was becoming clear. Roland set out to make a detailed description of the physical effects electron-positron pair production and annihilation would have on such plasmas. In 1981 Roland defended his thesis titled ``Physical Properties in Relativistic Plasmas" and completed his PhD under the supervision of Bill Mathews. Roland extended the results of his thesis during two post-docs, first at

  7. 21 CFR 878.3550 - Chin prosthesis.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Chin prosthesis. 878.3550 Section 878.3550 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3550 Chin prosthesis....

  8. 21 CFR 878.3550 - Chin prosthesis.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Chin prosthesis. 878.3550 Section 878.3550 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3550 Chin prosthesis....

  9. 21 CFR 878.3550 - Chin prosthesis.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Chin prosthesis. 878.3550 Section 878.3550 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3550 Chin prosthesis....

  10. 21 CFR 878.3550 - Chin prosthesis.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Chin prosthesis. 878.3550 Section 878.3550 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3550 Chin prosthesis....

  11. 21 CFR 878.3550 - Chin prosthesis.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Chin prosthesis. 878.3550 Section 878.3550 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3550 Chin prosthesis....

  12. Numb chin syndrome in Ewing sarcoma.

    PubMed

    Antunes, N L; Gorlick, R; Callaja, E; Lis, E

    2000-01-01

    The numb chin syndrome consists of unilateral hypesthesia of the chin and lower lip. In adults, it is often associated with metastatic disease to the mandible, base of the skull, or leptomeninges. In children, it has been associated with infiltration of the inferior alveolar nerve by leukemic cells. We describe two cases of numb chin syndrome in children with Ewing sarcoma. In a child with a solid tumor, this symptom seems to have an ominous meaning and should lead to the investigation of progressive skeletal involvement. PMID:11132220

  13. [Bifocal atypical rolandic epilepsy with speech dyspraxia].

    PubMed

    Karlov, V A; Baiarrnaa Dondovyn; Gnezditskiĭ, V V

    2004-01-01

    Clinical and neurophysiological analysis of a case of a 7 year old patient with typical benign partial seizures with rolandic spikes and speech disorder, differing from those in Landau-Kleffner syndrome and in typical benign partial epilepsy of childhood presenting as speech dyspraxia. Two independent foci (in the premotor cortex of the left front lobe (dominant hemisphere) and in the temporal lobe of the right hemisphere were found. Significant clinical improvement and electrographical positive effect in EEG were achiered after prednisolone and sodium valproate treatment. PMID:15849864

  14. Estimating implant size in chin augmentation: A simplified approach

    PubMed Central

    Fanous, Nabil; Yoskovitch, Adi

    2003-01-01

    A receding chin, colloquially known as a weak chin, is a significant aesthetic impediment to a pleasing face. Multiple techniques exist to evaluate the poorly projecting chin, but most are imprecise when it comes to choosing the proper implant size. This choice is further complicated by the impracticality of commercially available chin implants. Most implant manufacturers offer only three to four categories of implants (small, medium, large, etc) that differ in size from one company to another, making the choice of the proper implant size a real challenge. The present paper discusses a new approach to precise sizing of the chin implant, based primarily on the degree of chin convexity (curvature of the chin pad) in the profile view. Examples of mentoplasties performed using the chin convexity principle are presented. PMID:24115862

  15. Sleep and behavioral problems in rolandic epilepsy.

    PubMed

    Samaitienė, Rūta; Norkūnienė, Jolita; Tumienė, Birutė; Grikinienė, Jurgita

    2013-02-01

    Although patients with benign childhood epilepsy with centrotemporal spikes exhibit a benign course of the disease, some of them display sleep and behavioral problems. Sixty-one patients with rolandic epilepsy, aged 6-11 years, were included in this study. The patients were divided into two subgroups according to the presence of seizures over the preceding 6 months. The control group comprised 25 patients without epilepsy and with similar characteristics in terms of age and sex. All patients underwent evaluation of sleep (Sleep Disturbance Scale for Children) and behavior (Lithuanian version of the Child Behaviour Checklist). Only patients who had had seizures over the preceding 6 months displayed significantly higher scores for sleep problems (disorders of excessive daytime sleepiness, disorders of sleep-wake transition, and scores for total sleep problems), worse sleep quality (longer sleep-onset latency), and behavioral problems (anxiety/depression, social problems, thought problems, attention problems, and aggressive behavior) than the patients of the control group. Our data add to evidence that active epilepsy has an impact on sleep and behavior. Clinically significant sleep problems were related to the higher risk of behavioral problems. Parents' ratings for existing sleep problems were sensitive to Sleep Disturbance Scale for Children scores above normal values. PMID:23337004

  16. Biomechanical impact response of the human chin and manubrium.

    PubMed

    Stammen, Jason A; Bolte, John H; Shaw, Joshua

    2012-03-01

    Chin-to-chest impact commonly occurs in frontal crash simulations with restrained anthropomorphic test devices (ATDs) in non-airbag situations. This study investigated the biofidelity of this contact by evaluating the impact response of both the chin and manubrium of adult post-mortem human subjects (PMHSs). The adult PMHS data were scaled to a 10-year-old (YO) human size and then compared with the Hybrid III 10YO child (HIII-10C) ATD response with the same test configurations. For both the chin and manubrium, the responses of the scaled PMHS had different characteristics than the HIII-10C ATD responses. Elevated energy impact tests to the PMHS mandible provided a mean injury tolerance value for chin impact force. Chin contact forces in the HIII-10C ATD were calculated in previously conducted HYGE sled crash simulation tests, and these contact forces were strongly correlated with the Head Injury Criterion (HIC(36 ms)). The mean injurious force from the PMHS tests corresponded to a HIC(36 ms) value that would predict an elevated injury risk if it is assumed that fractures of the chin and skull are similarly correlated with HIC(36 ms). Given the rarity of same occupant-induced chin injury in booster-seated occupants in real crash data and the disparity in chin and manubrium stiffnesses between scaled PMHS and HIII-10C ATD, the data from this study can be made use of to improve biofidelity of chin-to-manubrium contact in ATDs. PMID:21971966

  17. Roland Barthes and Decomposing/Deterritorializing the Writing Classroom.

    ERIC Educational Resources Information Center

    Richmond, Joan L.

    Roland Barthes points out in his pedagogical essays that, although students have been filled with horror stories of professorial expectations, at the same time they have expectations of their own. Barthes' points should be considered as a way of examining the classroom space and common writing teaching practices and opening them up to different…

  18. Superculture? Thoughts Prompted by Roland S. Persson's Essay

    ERIC Educational Resources Information Center

    Tebbs, Trevor J.

    2012-01-01

    The author finds Roland S. Persson's (2012a) paper to be timely, fascinating, important and powerful. At risk of mixing metaphors, it provides much food for thought and a penetrating lens through which all those vested in the optimal realisation of human potential would be prudent to review their own perceptions, boundaries of belief and…

  19. A Flipped Spoon and Chin Prompt to Increase Mouth Clean

    ERIC Educational Resources Information Center

    Dempsey, Jack; Piazza, Cathleen C.; Groff, Rebecca A.; Kozisek, Jennifer M.

    2011-01-01

    We treated the liquid refusal of a 15-month-old girl using 2 antecedent manipulations: flipped spoon and chin prompt. Use of the chin prompt in the absence of the flipped spoon failed to produce increases in mouth clean (a product measure of swallowing). By contrast, modest increases in mouth clean resulted from the implementation of the flipped…

  20. [An infected necrosis of the chin].

    PubMed

    Muller, B S; van Goor, H F; Rosenberg, A J W P

    2016-07-01

    A 51-year-old man was referred by his dentist to a maxillofacial surgeon with complaints of illness and pain in the mandible, associated with a rapidly expanding area of black gingiva and mucosa surrounding the lower front teeth. Clinically and radiographically there was evidence of an infected necrosis of the chin and floor of mouth. Following debridement at the operating room, the patient was treated at the intensive care unit for septic shock leading to prolonged hospitalisation. Investigation of the bone marrow did not provide an explanation for pancytopenia or the severity of the illness. In addition, genetic investigation of thiopurine S-methyltransferase gene showed no mutations. This gene codes for an identically named protein enzyme that contributes in the metabolising of the medicine azathioprine, used daily for an autoimmune disease. A combination of the use of azathioprine, a folic acid deficiency and sepsis led to this exceptional course of illness. Therapeutic intervention consisted of surgical debridement and treatment of the bacteraemia. Afterwards several corrective surgeries were necessary to restore oral functions. PMID:27430038

  1. Phylogeography and taxonomy of White-chinned and Spectacled Petrels.

    PubMed

    Mareile Techow, N M S; Ryan, Peter G; O'Ryan, Colleen

    2009-07-01

    The genus Procellaria traditionally consists of four species, two restricted to New Zealand and two widespread in the Southern Ocean. All four are threatened because of incidental mortality on longlines and other fishing gear. The White-chinned Petrel P. aequinoctialis is the seabird killed in largest numbers by fisheries in the Southern Ocean. A spectacled form recently has been elevated to species status, Spectacled Petrel P. conspicillata, based on differences in morphometrics, vocalisations and breeding phenology. Cytochrome b sequences support species status for the Spectacled Petrel and show that the White-chinned Petrel has two regional populations, one around New Zealand and one throughout the South Atlantic and Indian Oceans. White-chinned and Spectacled Petrels segregated approximately 0.90 million years ago by allopatric fragmentation, and the two populations within White-chinned Petrels diverged approximately 0.35 million years ago. Climate changes and corresponding changes in ocean currents are most likely responsible for these patterns. PMID:19364537

  2. Ak-Chin Indian Community Biomass Feasiiblity Study

    SciTech Connect

    Mark A. Moser, RCM Digesters, Inc.; Mark Randall, Daystar Consulting, LLC; Leonard S. Gold, Ak-Chin Energy Services & Utility Strategies Consulting Group

    2005-12-31

    Study of the conversion of chicken litter to biogas for the production of energy. There was an additional requirement that after extracting the energy from the chicken litter the nutrient value of the raw chicken litter had to be returned to the Ak-Chin Farms for use as fertilizer in a form and delivery method acceptable to the Farm.

  3. Mechanisms of Airway Protection during Chin-Down Swallowing

    ERIC Educational Resources Information Center

    Macrae, Phoebe; Anderson, Cheryl; Humbert, Ianessa

    2014-01-01

    Purpose: This study examined the effects of chin-down swallowing on laryngeal vestibule closure. It also investigated the technique's rehabilitative impact, by assessing the stability of effects across multiple trials and aftereffects in neutral swallows on cessation of the technique. Method: Duration of laryngeal vestibule closure (dLVC) was…

  4. Localized Pseudoxanthoma Elasticum-like Changes on the Chin

    PubMed Central

    Lee, Joong Sun; Kim, You Chan

    2008-01-01

    Pseudoxanthoma elasticum (PXE) is a rare, inherited, multisystem disorder characterized by progressive calcification and fragmentation of elastic fibers. Typically, small, yellowish papules are located on the neck and flexural areas; however, localized acquired cutaneous PXE has been proposed as a non-heritable form of the disorder. We report a patient who had normal appearing skin on the chin with an itching sensation and had PXE-like changes by skin biopsy. PMID:27303205

  5. Odontogenic sinus tract to the chin: a diagnostic dilemma.

    PubMed

    Magliocca, Kelly R; Minehart, Stephen J; Brown, David L; Ward, Brent B

    2010-07-01

    Sinus tracts of odontogenic origin most commonly open into the oral cavity but occasionally may drain extraorally. The diagnosis is more difficult when necrosis of the tooth occurs in the absence of dental caries. We report a 23-year-old man with a long-standing chronic wound on the inferior aspect of the chin that was refractory to treatment. This case demonstrates the use of a simple technique to identify a necrotic mandibular incisor tooth as the source of infection. PMID:21049765

  6. Chin augmentation using minimally invasive technique and bioplastique.

    PubMed

    Ersek, R A; Stovall, R B; Vazquez-Salisbury, A

    1995-05-01

    The plethora of problematic techniques for improving minor chin recessions has left the plastic surgeon inevitably uncertain of the most effective remedy. Research we began in 1968 has led us to the development of a new biphasic polymer and minimally invasive implantation techniques aimed at solving the soft-tissue deficiency dilemma. Bioplastique consists of inert, textured particles of critical dimension dispersed within a bioexcretable gel vehicle. Previous experimentation in rabbit ears has shown that the gel component is rapidly phagocytosed, excreted, and replaced by a fibrin matrix within 3 days. The matrix is then replaced by host collagen, gradually forming a stable encasement around each microparticle. Further evaluation has revealed that the implant resists migration and absorption. Based on these encouraging results, a clinical phase was initiated. Thirteen patients lacking chin prominence have subsequently been improved with Bioplastique implants. The infection rate was 0 percent, and other complications were minor. At 26 months, no evidence of migration or absorption has been observed, and the aesthetic results remain. PMID:7732146

  7. Incidental rolandic spikes: long-term outcomes and impact of treatment.

    PubMed

    McNally, Melanie A; Kossoff, Eric H

    2015-02-01

    We describe a group of 26 children with no prior history of seizures consistent with benign rolandic epilepsy who had rolandic spikes found coincidentally on EEG. A retrospective chart review as well as phone and email follow-ups with families were completed to assess long-term outcomes. A subset of this group (n=7) with reported comorbid language or learning difficulties was then given an empiric trial of levetiracetam. Seven (27%) children eventually developed seizures, with a median of 14months after the abnormal EEG. Of the 7 children ever treated with levetiracetam, 5 exhibited beneficial effects on learning, speech, or behavior. Side effects reported were mild and included irritability and headache. Incidental rolandic spikes may represent a discrete neurologic condition, with approximately one-quarter of the patients later developing epilepsy. Some of these children may experience improved intellectual functioning with levetiracetam. PMID:25623811

  8. Autosomal dominant rolandic epilepsy and speech dyspraxia: a new syndrome with anticipation.

    PubMed

    Scheffer, I E; Jones, L; Pozzebon, M; Howell, R A; Saling, M M; Berkovic, S F

    1995-10-01

    We describe a family of 9 affected individuals in three generations with nocturnal oro-facio-brachial partial seizures, secondarily generalized partial seizures, and centro-temporal epileptiform discharges, associated with oral and speech dyspraxia and cognitive impairment. The speech disorder was prominent, but differed from that of Landau-Kleffner syndrome and of epilepsy with continuous spike and wave during slow-wave sleep. The electroclinical features of this new syndrome of autosomal dominant rolandic epilepsy resemble those of benign rolandic epilepsy, a common inherited epilepsy of childhood. This family shows clinical anticipation of the seizure disorder, the oral and speech dyspraxia, and cognitive dysfunction, suggesting that the genetic mechanism could be expansion of an unstable triplet repeat. Molecular studies on this syndrome, where the inheritance pattern is clear, could also be relevant to identifying a gene for benign rolandic epilepsy where anticipation does not occur and the mode of inheritance is uncertain. PMID:7574460

  9. Voice and Valence-Altering Operations in Falam Chin: A Role and Reference Grammar Approach

    ERIC Educational Resources Information Center

    King, Deborah

    2010-01-01

    This dissertation describes and analyzes voice and valence-altering operations in Falam Chin, a Tibeto-Burman language of Burma. The data is explained within the framework of Role and Reference Grammar (RRG), which supplies several key concepts particularly useful for generalizing the behavior of the Falam Chin operations. The first is RRG's…

  10. Harm and the Ideal of the Educated Person: Response to Jane Roland Martin.

    ERIC Educational Resources Information Center

    Roemer, Eleanor Kallman

    1981-01-01

    This paper analyses and comments on an article by Jane Roland Martin (Educational Theory, v31 n2) concerning a masculine bias in the teaching of the intellectual disciplines. Roemer supports Martin's major arguments, including the idea that women are forced to accommodate to norms established for men. (PP)

  11. "Profound Levels of Learning" through Brain-Based Teaching: A Tribute to Roland Barth

    ERIC Educational Resources Information Center

    Shore, Rebecca Ann

    2012-01-01

    This article is a tribute to the writings of Dr. Roland Barth through a personal story spanning over two decades. It explores Dr. Barth's personal vision of an effective school through recent brain-based principles. It revisits Barth's axioms and uses recent implications from the neurosciences as new supporting evidence for their success in…

  12. Policy, Practice in Giftedness, and Research Methodologies: Response to Roland S. Persson's Article

    ERIC Educational Resources Information Center

    Matthews, Dona J.

    2012-01-01

    The author finds the target article "Cultural Variation and Dominance in a Globalised Knowledge Economy" to be a thoughtful exploration of an important topic for all social scientists, certainly including those who study gifted development and education. Roland S. Persson (2012a) raises many questions about policy and practice in giftedness…

  13. Static test of a fan-powered chin nozzle for V/STOl applications

    NASA Technical Reports Server (NTRS)

    Salemann, V.

    1981-01-01

    The performance of a "chin" nozzle which diverts flow in a downward direction immediately downstream of a fan typical of designs suitable for V/STOL A applications was evaluated. Back pressure distortion to the fan and fan discharge pressure distortion were also measured. Results show that the distortion is significant at the closest spacing between the fan exit and cascade entrance tested, and that the chin nozzle performance deteriorates with increased flow diversion to the chin nozzle. Color oil flow visualization on video tape and still photos were also obtained. Tests were conducted behind a 12" model fan in the NASA-Lewis fan calibration facility.

  14. Reduced Structural Connectivity between Sensorimotor and Language Areas in Rolandic Epilepsy

    PubMed Central

    Besseling, René M. H.; Jansen, Jacobus F. A.; Overvliet, Geke M.; van der Kruijs, Sylvie J. M.; Ebus, Saskia C. M.; de Louw, Anton; Hofman, Paul A. M.; Vles, Johannes S. H.; Aldenkamp, Albert P.; Backes, Walter H.

    2013-01-01

    Introduction Rolandic epilepsy (RE) is a childhood epilepsy with centrotemporal (rolandic) spikes, that is increasingly associated with language impairment. In this study, we tested for a white matter (connectivity) correlate, employing diffusion weighted MRI and language testing. Methods Twenty-three children with RE and 23 matched controls (age: 8–14 years) underwent structural (T1-weighted) and diffusion-weighted MRI (b = 1200 s/mm2, 66 gradient directions) at 3T, as well as neuropsychological language testing. Combining tractography and a cortical segmentation derived from the T1-scan, the rolandic tract were reconstructed (pre- and postcentral gyri), and tract fractional anisotropy (FA) values were compared between patients and controls. Aberrant tracts were tested for correlations with language performance. Results Several reductions of tract FA were found in patients compared to controls, mostly in the left hemisphere; the most significant effects involved the left inferior frontal (p = 0.005) and supramarginal (p = 0.004) gyrus. In the patient group, lower tract FA values were correlated with lower language performance, among others for the connection between the left postcentral and inferior frontal gyrus (p = 0.043, R = 0.43). Conclusion In RE, structural connectivity is reduced for several connections involving the rolandic regions, from which the epileptiform activity originates. Most of these aberrant tracts involve the left (typically language mediating) hemisphere, notably the pars opercularis of the inferior frontal gyrus (Broca’s area) and the supramarginal gyrus (Wernicke’s area). For the former, reduced language performance for lower tract FA was found in the patients. These findings provide a first microstructural white matter correlate for language impairment in RE. PMID:24376719

  15. Follicular keratosis of the chin treated with 1.24R-dihydroxyvitamin D3 ointment.

    PubMed

    Yanagihara, Makoto; Takeda, Kiminobu; Tanabe, Hiroshi; Abe, Shinya; Ishizaki, Hiroshi

    2007-01-01

    In follicular keratosis of the chin, keratotic follicular papules occur on the chin and jaw due to localized prolonged pressure and friction on the naked skin. We present one patient with this disorder. The dermatoscopic examination revealed many well-demarcated yellow spindle bodies in the patchy lesion. Therapy with 1.24R-dihydroxyvitamin D3 ointment was effective during the treatment but had no residual positive effect. PMID:17845168

  16. The ontogeny of the chin: an analysis of allometric and biomechanical scaling.

    PubMed

    Holton, N E; Bonner, L L; Scott, J E; Marshall, S D; Franciscus, R G; Southard, T E

    2015-06-01

    The presence of a prominent chin in modern humans has been viewed by some researchers as an architectural adaptation to buttress the anterior corpus from bending stresses during mastication. In contrast, ontogenetic studies of mandibular symphyseal form suggest that a prominent chin results from the complex spatial interaction between the symphysis and surrounding soft tissue and skeletal anatomy during development. While variation in chin prominence is clearly influenced by differential growth and spatial constraints, it is unclear to what degree these developmental dynamics influence the mechanical properties of the symphysis. That is, do ontogenetic changes in symphyseal shape result in increased symphyseal bending resistance? We examined ontogenetic changes in the mechanical properties and shape of the symphysis using subjects from a longitudinal cephalometric growth study with ages ranging from 3 to 20+ years. We first examined whether ontogenetic changes in symphyseal shape were correlated with symphyseal vertical bending and wishboning resistance using multivariate regression. Secondly, we examined ontogenetic scaling of bending resistance relative to bending moment arm lengths. An ontogenetic increase in chin prominence was associated with decreased vertical bending resistance, while wishboning resistance was uncorrelated with ontogenetic development of the chin. Relative to bending moment arm lengths, vertical bending resistance scaled with significant negative allometry whereas wishboning resistance scaled isometrically. These results suggest a complex interaction between symphyseal ontogeny and bending resistance, and indicate that ontogenetic increases in chin projection do not provide greater bending resistance to the mandibular symphysis. PMID:25865897

  17. Short Faces, Big Tongues: Developmental Origin of the Human Chin

    PubMed Central

    Coquerelle, Michael; Prados-Frutos, Juan Carlos; Rojo, Rosa; Mitteroecker, Philipp; Bastir, Markus

    2013-01-01

    During the course of human evolution, the retraction of the face underneath the braincase, and closer to the cervical column, has reduced the horizontal dimension of the vocal tract. By contrast, the relative size of the tongue has not been reduced, implying a rearrangement of the space at the back of the vocal tract to allow breathing and swallowing. This may have left a morphological signature such as a chin (mental prominence) that can potentially be interpreted in Homo. Long considered an autopomorphic trait of Homo sapiens, various extinct hominins show different forms of mental prominence. These features may be the evolutionary by-product of equivalent developmental constraints correlated with an enlarged tongue. In order to investigate developmental mechanisms related to this hypothesis, we compare modern 34 human infants against 8 chimpanzee fetuses, whom development of the mandibular symphysis passes through similar stages. The study sets out to test that the shared ontogenetic shape changes of the symphysis observed in both species are driven by the same factor – the space restriction at the back of the vocal tract and the associated arrangement of the tongue and hyoid bone. We apply geometric morphometric methods to extensive three-dimensional anatomical landmarks and semilandmarks configuration, capturing the geometry of the cervico-craniofacial complex including the hyoid bone, tongue muscle and the mandible. We demonstrate that in both species, the forward displacement of the mental region derives from the arrangement of the tongue and hyoid bone, in order to cope with the relative horizontal narrowing of the oral cavity. Because humans and chimpanzees share this pattern of developmental integration, the different forms of mental prominence seen in some extinct hominids likely originate from equivalent ontogenetic constraints. Variations in this process could account for similar morphologies. PMID:24260566

  18. Short faces, big tongues: developmental origin of the human chin.

    PubMed

    Coquerelle, Michael; Prados-Frutos, Juan Carlos; Rojo, Rosa; Mitteroecker, Philipp; Bastir, Markus

    2013-01-01

    During the course of human evolution, the retraction of the face underneath the braincase, and closer to the cervical column, has reduced the horizontal dimension of the vocal tract. By contrast, the relative size of the tongue has not been reduced, implying a rearrangement of the space at the back of the vocal tract to allow breathing and swallowing. This may have left a morphological signature such as a chin (mental prominence) that can potentially be interpreted in Homo. Long considered an autopomorphic trait of Homo sapiens, various extinct hominins show different forms of mental prominence. These features may be the evolutionary by-product of equivalent developmental constraints correlated with an enlarged tongue. In order to investigate developmental mechanisms related to this hypothesis, we compare modern 34 human infants against 8 chimpanzee fetuses, whom development of the mandibular symphysis passes through similar stages. The study sets out to test that the shared ontogenetic shape changes of the symphysis observed in both species are driven by the same factor--space restriction at the back of the vocal tract and the associated arrangement of the tongue and hyoid bone. We apply geometric morphometric methods to extensive three-dimensional anatomical landmarks and semilandmarks configuration, capturing the geometry of the cervico-craniofacial complex including the hyoid bone, tongue muscle and the mandible. We demonstrate that in both species, the forward displacement of the mental region derives from the arrangement of the tongue and hyoid bone, in order to cope with the relative horizontal narrowing of the oral cavity. Because humans and chimpanzees share this pattern of developmental integration, the different forms of mental prominence seen in some extinct hominids likely originate from equivalent ontogenetic constraints. Variations in this process could account for similar morphologies. PMID:24260566

  19. Semiology of typical and atypical Rolandic epilepsy: a video-EEG analysis.

    PubMed

    Saint-Martin, A D; Carcangiu, R; Arzimanoglou, A; Massa, R; Thomas, P; Motte, J; Marescaux, C; Metz-Lutz, M N; Hirsch, E

    2001-12-01

    Since the first descriptions of Rolandic Epilepsy or benign epilepsy with centrotemporal spikes (BECTS), typical and atypical forms have been reported. Indeed, classical focal seizures are sometimes associated with various atypical ictal symptoms and cognitive or behavioural disorders. In an effort to define early clinical and EEG criteria allowing early distinction between typical and atypical forms, we recently conducted a prospective study in a cohort of children with Rolandic Epilepsy. The results of this study have been reported elsewhere. We now discuss the semiological characteristics, and comment on the video-EEG data collected during this study. Symptoms were classified into three major categories: "classical focal seizures"; "spike and wave related symptoms"; and "paraictal symptoms". Classical focal seizures constitute the electroclinical expression of the development and the propagation of a focal cortical neuronal discharge. "Spike and wave related symptoms" are brief neurological or neuropsychological phenomena having a relatively strict temporal relation with individual components of isolated focal or generalized spikes and waves. "Paraictal symptoms" consist of acquired progressive and fluctuating motor or cognitive deficits and are not directly correlated with Todd paralysis. We present detailed video-EEG material of selected cases and discuss the usefulness of such distinctions in terminology. We suggest that variability in clinical expression probably reflects the implication of different pathophysiological mechanisms, which in turn could explain differences in sensitivity to treatment. (Published with videosequences.) PMID:11844712

  20. Resting state Rolandic mu rhythms are related to activity of sympathetic component of autonomic nervous system in healthy humans.

    PubMed

    Triggiani, Antonio Ivano; Valenzano, Anna; Del Percio, Claudio; Marzano, Nicola; Soricelli, Andrea; Petito, Annamaria; Bellomo, Antonello; Başar, Erol; Mundi, Ciro; Cibelli, Giuseppe; Babiloni, Claudio

    2016-05-01

    We tested the hypothesis of a relationship between heart rate variability (HRV) and Rolandic mu rhythms in relaxed condition of resting state. Resting state eyes-closed electroencephalographic (EEG) and electrocardiographic (ECG) data were recorded (10-20 System) in 42 healthy adults. EEG rhythms of interest were high-frequency alpha (10.5-13Hz) and low-frequency beta (13-20Hz), which are supposed to form Rolandic mu rhythms. Rolandic and occipital (control) EEG sources were estimated by LORETA software. Results showed a statistically significant (p<0.05, corrected) negative correlation across all subjects between Rolandic cortical sources of low-frequency beta rhythms and the low-frequency band power (LF, 0.04-0.15Hz) of tachogram spectrum as an index of HRV. The lower the amplitude of Rolandic sources of low-frequency beta rhythms (as a putative sign of activity of somatomotor cortex), the higher the LF band power of tachogram spectrum (as a putative sign of sympathetic activity). This effect was specific as there was neither a similar correlation between these EEG rhythms and high-frequency band power of tachogram spectrum (as a putative sign of parasympathetic vagal activity) neither between occipital sources of low-frequency beta rhythms (as a putative sign of activity of visual cortex) and LF band power of tachogram spectrum. These results suggest that Rolandic low-frequency beta rhythms are related to sympathetic activity regulating heart rate, as a dynamic neurophysiologic oscillatory mechanism sub-serving the interaction between brain neural populations involved in somatomotor control and brain neural populations regulating ANS signals to heart for on-going homeostatic adaptations. PMID:25660308

  1. A Dialogue with Lisa Chin: An Asian-American Feminist Perspective.

    ERIC Educational Resources Information Center

    McLaren, Peter

    1994-01-01

    The terms "Asian" and "Pacific Islanders" capture diverse historical relationships and a powerful cultural/linguistic diversity. Many Asian-Pacific Americans have succeeded despite monumental prejudices and obstacles, including the "model minority" myth promoted by conservatives to limit affirmative action. Chin's research explores a feminist…

  2. Seismic detections of the 15 February 2013 Chelyabinsk meteor from the dense ChinArray

    NASA Astrophysics Data System (ADS)

    Li, Lu; Wang, Baoshan; Peng, Zhigang; Wang, Weitao

    2016-07-01

    ChinArray is a dense portable broadband seismic network to cover the entire continental China, and the Phase I is deployed along the north-south seismic belt in southwest China. In this study, we analyze seismic data recorded on the ChinArray following the February 15, 2013 Chelyabinsk (Russia) meteor. This was the largest known object entering the Earth's atmosphere since the 1908 Tunguska meteor. The seismic energy radiated from this event was recorded by seismic stations worldwide including the dense ChinArray that are more than 4000 km away. The weak signal from the meteor event was contaminated by a magnitude 5.8 Tonga earthquake occurred ~20 min earlier. To test the feasibility of detecting the weak seismic signals from the meteor event, we compute vespagram and perform F-K analysis to the surface-wave data. We identify a seismic phase with back azimuth (BAZ) of 329.7° and slowness of 34.73 s/deg, corresponding to the surface wave from the Russian meteor event (BAZ ~325.97°). The surface magnitude (M S) of the meteor event is 3.94 ± 0.18. We also perform similar analysis on the data from the broadband array F-net in Japan, and find the BAZ of the surface waves to be 316.61°. With the different BAZs of ChinArray and F-net, we locate the Russian meteor event at 58.80°N, 58.72°E. The relatively large mislocation (~438 km as compared with 55.15°N, 61.41°E by others) may be a result of the bending propagation path of surface waves, which deviates from the great circle path. Our results suggest that the dense ChinArray and its subarrays could be used to detect weak signals at teleseismic distances.

  3. Fiddler's neck: Chin rest-associated irritant contact dermatitis and allergic contact dermatitis in a violin player.

    PubMed

    Caero, Jennifer E; Cohen, Philip R

    2012-09-01

    Fiddler's neck refers to an irritant contact dermatitis on the submandibular neck of violin and viola players and an allergic contact dermatitis to nickel from the bracket attaching the violin to the chin rest on the violinist's supraclavicular neck. A 26-year-old woman developed submandibular and supraclavicular left neck lesions corresponding to the locations of the chin rest and bracket that was attached to her violin that held it against her neck when she played. Substitution of a composite chin rest, which did not contain nickel, and the short-term application of a low potency topical corticosteroid cream, resulted in complete resolution of the allergic contact dermatitis supraclavicular neck lesion. The irritant contact dermatitis submandibular neck lesion persisted. In conclusion, violin players are predisposed to developing irritant contact dermatitis or allergic contact dermatitis from the chin rest. We respectfully suggest that the submandibular neck lesions from contact with the chin rest be referred to as 'fiddler's neck - type 1,' whereas the supraclavicular neck lesions resulting from contact of the bracket holding the chin rest in place be called 'fiddler's neck - type 2.' A composite chin rest should be considered in patients with a preceding history of allergic contact dermatitis to nickel. PMID:23031377

  4. Chinrest pressure in violin playing: type of music, chin rest, and shoulder pad as possible mediators.

    PubMed

    Okner, M; Kernozek, T

    1997-04-01

    INTRODUCTION:: This study was conducted to determine if there are differences in pressure on a violin chin rest during performance due to changes in shoulder pads, chin rests, or pieces of music performed. It was also hypothesized that these differences would correlate with anthropometric measurements made of the subjects' necks and shoulders. METHODS::: A Novel EMED pad was used over the chin rest, containing 120 sensors, each one centimetre squared. The sampling rate was 50 Hz. A total of ten subjects, all professional violinists, performed excerpts from a Bruch violin concerto and a Handel sonata. Anthropometric measurements were made of the subjects' necks and shoulders. Each subject began by using his own violin with his usual shoulder pad and chin rest set-up, and then with the author's violin. Two different shoulder pads and three different chin rests were placed on the violin, in all possible combinations, for both pieces of music. This resulted in a total of fourteen conditions given in randomized order for each subject. Subjects were asked to give verbal feedback regarding the comfort and ease of playing of each shoulder pad and chin rest. Data was collected for three trials of each condition, and a mean for the three trials was obtained for each dependent variable. The five dependent variables were: peak pressure, maximum force, pressure/time integral and force/time integral, and total contact area. Intraclass coefficients of reliability were calculated for the dependent variables. Pearson's correlation coefficients were computed to determine if there were significant relationships between the five dependent variables and violin height, shoulder width, and neck length. RESULTS:: Pressure/time integral achieved the highest reliability with a coefficient of 0.9310, followed by peak pressure at 0.9152, force/time integral at 0.8817, maximum force at 0.8685, and total area at 0.8571. Multivariate analysis of variance detected significant differences in

  5. Numb Chin Syndrome as First Symptom of Diffuse Large B-Cell Lymphoma

    PubMed Central

    Carbone, Mario; Della Ferrera, Francesco; Carbone, Lucio; Gatti, Gaia; Carrozzo, Marco

    2014-01-01

    Numb chin syndrome is a rare sensory neuropathy of the mental nerve characterized by numbness, hypoesthesia, paraesthesia, and very rarely pain. Dental causes, especially iatrogenic ones, maxillofacial trauma, or malignant neoplasm are etiologic factors for this rare syndrome. Many malignant and metastatic neoplasms are causing this syndrome, like primary osteosarcoma, squamous cell carcinoma, and mandibular metastasis of primary carcinoma of breast, lung, thyroid, kidney, prostate, and nasopharynx. Haematological malignancies like acute lymphocytic leukaemia, Hodgkin and non-Hodgkin lymphoma, and myeloma can cause this neuropathy. The authors report a case of a 71-year-old woman in which the numb chin syndrome was the first symptom of the diffuse large B-cell lymphoma, which caused infiltration and reabsorption of the alveolar ridge and lower mandibular cortex. A biopsy of the mass was performed on fragments of tissue collected from the mandibular periosteum, medullary and cortical mandibular bone, and inferior alveolar nerve. PMID:25580308

  6. Method of induction could affect emotional outcomes: comment on markey, chin, vanepps, and loewenstein (2014 ).

    PubMed

    Bench, Shane W; Yaugher, Ashley C; Lench, Heather C

    2015-04-01

    Markey, Chin, Vanepps, and Loewenstein (2014) demonstrated six methods for the induction of boredom. However, a clear and testable definition of boredom should be established prior to experimental manipulation of the construct. Defining boredom from a functional emotion perspective is one approach that affords a definition separable from the outcomes associated with boredom and insight into which manipulations may effectively target the construct. PMID:25730196

  7. The effectiveness of the head-turn-plus-chin-down maneuver for eliminating vallecular residue.

    PubMed

    Nagy, Ahmed; Peladeau-Pigeon, Melanie; Valenzano, Teresa Josephine; Namasivayam, Ashwini Marini; Steele, Catriona Margaret

    2016-04-01

    Purpose When swallowing efficiency is impaired, residue accumulates in the pharynx. Cued or spontaneous swallows in the head neutral position do not always successfully clear residue. We investigated the impact of a novel maneuver on residue clearance by combining a head turn with the chin down posture. Methods Data were collected from 26 participants who demonstrated persistent vallecular residue after an initial head neutral clearance swallow in videofluoroscopy. Participants were cued to perform a head-turn-plus-chin-down swallow, with the direction of head turn randomized. Pixel-based measures of residue in the vallecular space before and after the maneuver were made on still frame lateral images using ImageJ software. Measures of % full and the Normalized Residue Ratio Scale (NRRS) were extracted. Univariate analyses of variance were used to detect significant reductions in residue. Results On average, pre-maneuver measures showed residue filling 56-73% of the valleculae, depending on stimulus consistency (NRRS scores: 0.2-0.4). More than 80% of pre-swallow measures displayed NRRS ratios > 0.06, a threshold previously linked to increased risk of post-swallow aspiration. Conclusion The head-turn-plus-chin-down maneuver achieved significant reductions in residue for thin and nectar-thick fluids, suggesting that this maneuver can be effective in reducing persistent vallecular residue with these consistencies. PMID:27191873

  8. Modulation of Rolandic Beta-Band Oscillations during Motor Simulation of Joint Actions

    PubMed Central

    Ménoret, Mathilde; Bourguignon, Mathieu; Hari, Riitta

    2015-01-01

    Successful joint actions require precise temporal and spatial coordination between individuals who aim to achieve a common goal. A growing number of behavioral data suggest that to efficiently couple and coordinate a joint task, the actors have to represent both own and the partner’s actions. However it is unclear how the motor system is specifically recruited for joint actions. To find out how the goal and the presence of the partner’s hand can impact the motor activity during joint action, we assessed the functional state of 16 participants’ motor cortex during observation and associated motor imagery of joint actions, individual actions, and non-goal-directed actions performed with either 1 or 2 hands. As an indicator of the functional state of the motor cortex, we used the reactivity of the rolandic magnetoencephalographic (MEG) beta rhythm following median-nerve stimulation. Motor imagery combined with action observation was associated with activation of the observer’s motor cortex, mainly in the hemisphere contralateral to the viewed (and at the same time imagined) hand actions. The motor-cortex involvement was enhanced when the goal of the actions was visible but also, in the ipsilateral hemisphere, when the partner’s hand was visible in the display. During joint action, the partner’s action, in addition to the participant’s own action, thus seems to be represented in the motor cortex so that it can be triggered by the mere presence of an acting hand in the peripersonal space. PMID:26151634

  9. Alveolar and Skeletal Chin Dimensions Associated with Lower Facial Height Among Different Divergent Patterns

    PubMed Central

    Khan, MD Yaser Ahmed; Kishore, M.S.V; Rachala, Madhukar Reddy; Sashidhar, Nagam Reddy

    2016-01-01

    Introduction Alveolar and skeletal chin dimensions with facial height have an impact on diagnosis and treatment planning in orthodontic patients and serves as a reference landmark for facial aesthetics. Aim To evaluate the alveolar and skeleton chin dimensions among different divergent patterns, to evaluate the lower face height in different divergent growth patterns, to give an estimate to the oral surgeon for any adjunctive procedure. Materials and Methods The study includes a total sample of 45 non-growing individuals (26 males and 19 females) from the archival records of the Orthodontic Department with age ranging between 18-25 years, classified into different divergent patterns based on the mandibular plane angle. The sample was divided into three groups, of which 15 patients in each group were evaluated: Group-1: Normodivergent, Group-2: Hypodivergent and Group-3: Hyperdivergent patterns respectively. Standardized digital lateral cephalograms and antero-posterior cephalograms of these patients were obtained in Natural Head Position (NHP). Results The results of the retrospective cephalometeric study were statistically analyzed by using ANOVA and Tukey’s multiple post hoc test which showed that hard tissue chin measurement were greater in hypodivergent group (13.7mm) and the increased lower facial height showed statistically significant difference in high mandibular plane angle group (59.6mm). In antero-posterior cephalograms the transverse width showed statistically significant difference in normodivergent group (32.60mm). Conclusion The anterio-posterior width of the symphysis was higher in hypodivergent growth pattern, whereas vertical height of the symphysis was greater in hyperdivergent group. The lower facial height among three groups showed statistically significant difference among hyperdivergent group. In comparison of all the three groups in Anterio-Posterior (AP) cephalograms, statistically significant difference was noted in normodivergent group

  10. Augmentation of the cheeks, chin and pre-jowl sulcus, and nasolabial folds.

    PubMed

    Romo, T; Baskin, J Z; Sclafani, A P

    2001-02-01

    The demand for augmentation of central and lower facial features continues to increase. There are several safe and effective materials available for this purpose, and techniques have become highly refined. The relative strengths and weaknesses of silicone, expanded polytetrafluoroethylene (ePTFE), high-density polyethylene (HDPE), and merseline mesh are discussed for augmentation of the chin/pre-jowl sulcus and cheek. Materials for augmentation of the nasolabial folds (NLF) are also discussed. There are various forms of solid ePTFE that have been developed for soft tissue augmentation. These are particularly well suited for the NLF. Techniques for facial skeletal and soft tissue augmentation are presented. PMID:11518979

  11. 16p11.2 600 kb Duplications confer risk for typical and atypical Rolandic epilepsy.

    PubMed

    Reinthaler, Eva M; Lal, Dennis; Lebon, Sebastien; Hildebrand, Michael S; Dahl, Hans-Henrik M; Regan, Brigid M; Feucht, Martha; Steinböck, Hannelore; Neophytou, Birgit; Ronen, Gabriel M; Roche, Laurian; Gruber-Sedlmayr, Ursula; Geldner, Julia; Haberlandt, Edda; Hoffmann, Per; Herms, Stefan; Gieger, Christian; Waldenberger, Melanie; Franke, Andre; Wittig, Michael; Schoch, Susanne; Becker, Albert J; Hahn, Andreas; Männik, Katrin; Toliat, Mohammad R; Winterer, Georg; Lerche, Holger; Nürnberg, Peter; Mefford, Heather; Scheffer, Ingrid E; Berkovic, Samuel F; Beckmann, Jacques S; Sander, Thomas; Jacquemont, Sebastien; Reymond, Alexandre; Zimprich, Fritz; Neubauer, Bernd A

    2014-11-15

    Rolandic epilepsy (RE) is the most common idiopathic focal childhood epilepsy. Its molecular basis is largely unknown and a complex genetic etiology is assumed in the majority of affected individuals. The present study tested whether six large recurrent copy number variants at 1q21, 15q11.2, 15q13.3, 16p11.2, 16p13.11 and 22q11.2 previously associated with neurodevelopmental disorders also increase risk of RE. Our association analyses revealed a significant excess of the 600 kb genomic duplication at the 16p11.2 locus (chr16: 29.5-30.1 Mb) in 393 unrelated patients with typical (n = 339) and atypical (ARE; n = 54) RE compared with the prevalence in 65,046 European population controls (5/393 cases versus 32/65,046 controls; Fisher's exact test P = 2.83 × 10(-6), odds ratio = 26.2, 95% confidence interval: 7.9-68.2). In contrast, the 16p11.2 duplication was not detected in 1738 European epilepsy patients with either temporal lobe epilepsy (n = 330) and genetic generalized epilepsies (n = 1408), suggesting a selective enrichment of the 16p11.2 duplication in idiopathic focal childhood epilepsies (Fisher's exact test P = 2.1 × 10(-4)). In a subsequent screen among children carrying the 16p11.2 600 kb rearrangement we identified three patients with RE-spectrum epilepsies in 117 duplication carriers (2.6%) but none in 202 carriers of the reciprocal deletion. Our results suggest that the 16p11.2 duplication represents a significant genetic risk factor for typical and atypical RE. PMID:24939913

  12. Delayed convergence between brain network structure and function in rolandic epilepsy

    PubMed Central

    Besseling, René M. H.; Jansen, Jacobus F. A.; Overvliet, Geke M.; van der Kruijs, Sylvie J. M.; Ebus, Saskia C. M.; de Louw, Anton J. A.; Hofman, Paul A. M.; Aldenkamp, Albert P.; Backes, Walter H.

    2014-01-01

    Introduction: Rolandic epilepsy (RE) manifests during a critical phase of brain development, and has been associated with language impairments. Concordant abnormalities in structural and functional connectivity (SC and FC) have been described before. As SC and FC are under mutual influence, the current study investigates abnormalities in the SC-FC synergy in RE. Methods: Twenty-two children with RE (age, mean ± SD: 11.3 ± 2.0 y) and 22 healthy controls (age 10.5 ± 1.6 y) underwent structural, diffusion weighted, and resting-state functional magnetic resonance imaging (MRI) at 3T. The probabilistic anatomical landmarks atlas was used to parcellate the (sub)cortical gray matter. Constrained spherical deconvolution tractography and correlation of time series were used to assess SC and FC, respectively. The SC-FC correlation was assessed as a function of age for the non-zero structural connections over a range of sparsity values (0.01–0.75). A modularity analysis was performed on the mean SC network of the controls to localize potential global effects to subnetworks. SC and FC were also assessed separately using graph analysis. Results: The SC-FC correlation was significantly reduced in children with RE compared to healthy controls, especially for the youngest participants. This effect was most pronounced in a left and a right centro-temporal network, as well as in a medial parietal network. Graph analysis revealed no prominent abnormalities in SC or FC network organization. Conclusion: Since SC and FC converge during normal maturation, our finding of reduced SC-FC correlation illustrates impaired synergy between brain structure and function. More specifically, since this effect was most pronounced in the youngest participants, RE may represent a developmental disorder of delayed brain network maturation. The observed effects seem especially attributable to medial parietal connections, which forms an intermediate between bilateral centro-temporal modules of

  13. Effect of Addition of Chin Strap on PAP Compliance, Nightly Duration of Use, and Other Factors

    PubMed Central

    Knowles, Shelley R.; O'Brien, Daniel T.; Zhang, Shiling; Devara, Anupama; Rowley, James A.

    2014-01-01

    Study Objectives: A chinstrap is potentially useful to reduce unintentional air leak by preventing mouth opening during PAP treatment. This study examines whether the addition of a chinstrap to PAP therapy has any effect on adherence, nightly duration of use, air leak, and residual AHI. Methods: This was a retrospective study performed at an AASM-accredited VAMC sleep center. Clinical sleep data of veterans (n = 124) prescribed PAP therapy for sleep apnea was evaluated, and the effect of chinstrap use vs non-use on the above parameters was assessed. Results: Chinstrap users had significantly greater PAP adherence, longer nightly duration of PAP use, lower residual AHI and lower leak compared to chinstrap non-users at first follow up visit. Conclusions: The addition of a chin strap to PAP therapy is a simple and inexpensive method of increasing PAP adherence. Citation: Knowles SR; O'Brien DT; Zhang S; Devara A; Rowley JA. Effect of addition of chin strap on PAP compliance, nightly duration of use, and other factors. J Clin Sleep Med 2014;10(4):377-383. PMID:24733982

  14. Fracture in the chin area: an unusual case of mandibular torus fracture.

    PubMed

    Saura-Ingles, A; Garcia-Ballesta, C; Pérez-Lajarin, L; López-Jornet, P

    2005-07-01

    Mandibular torus fracture as a result of accidental trauma has not been reported to date in the dental literature. This study describes the case of a young adult male who suffered multiple fractures affecting the teeth and mandibular torus secondary to chin area trauma due to a bicycle accident; the first manifestation of bone damage being left unilateral paraesthesia of the lip. An occlusal x-ray study of the affected area was made to evaluate possible fracture, as unlike centred periapical x-rays and orthopantomography, it is able to reveal the existence of a fracture line of the alveolar wall. In the associated presence of paraesthesia, a computed tomographic study is advisable. PMID:16003417

  15. Children with Multiple Disabilities and Minimal Motor Behavior Using Chin Movements to Operate Microswitches to Obtain Environmental Stimulation

    ERIC Educational Resources Information Center

    Lancioni, Giulio E.; O'Reilly, Mark F.; Singh, Nirbhay N.; Sigafoos, Jeff; Tota, Alessia; Antonucci, Massimo; Oliva, Doretta

    2006-01-01

    In these two studies, two children with multiple disabilities and minimal motor behavior were assessed to see if they could use chin movements to operate microswitches to obtain environmental stimulation. In Study I, we applied an adapted version of a recently introduced electronic microswitch [Lancioni, G. E., O'Reilly, M. F., Singh, N. N.,…

  16. GM2 gangliosidosis associated with a HEXA missense mutation in Japanese Chin dogs: a potential model for Tay Sachs disease.

    PubMed

    Sanders, Douglas N; Zeng, Rong; Wenger, David A; Johnson, Gary S; Johnson, Gayle C; Decker, Jared E; Katz, Martin L; Platt, Simon R; O'Brien, Dennis P

    2013-01-01

    GM2 gangliosidosis is a fatal lysosomal storage disease caused by a deficiency of β-hexosaminidase (EC 3.2.1.52). There are two major isoforms of the enzyme: hexosaminidase A composed of an α and a β subunit (encoded by HEXA and HEXB genes, respectively); and, hexosaminidase B composed of two β subunits. Hexosaminidase A requires an activator protein encoded by GM2A to catabolize GM2 ganglioside, but even in the absence of the activator protein, it can hydrolyze the synthetic substrates commonly used to assess enzyme activity. GM2 gangliosidosis has been reported in Japanese Chin dogs, and we identified the disease in two related Japanese Chin dogs based on clinical signs, histopathology and elevated brain GM2 gangliosides. As in previous reports, we found normal or elevated hexosaminidase activity when measured with the synthetic substrates. This suggested that the canine disease is analogous to human AB variant of G(M2) gangliosidosis, which results from mutations in GM2A. However, only common neutral single nucleotide polymorphisms were found upon sequence analysis of the canine ortholog of GM2A from the affected Japanese Chins. When the same DNA samples were used to sequence HEXA, we identified a homozygous HEXA:c967G>A transition which predicts a p.E323K substitution. The glutamyl moiety at 323 is known to make an essential contribution to the active site of hexosaminidase A, and none of the 128 normal Japanese Chins and 92 normal dogs of other breeds that we tested was homozygous for HEXA:c967A. Thus it appears that the HEXA:c967G>A transition is responsible for the GM2 gangliosidosis in Japanese Chins. PMID:23266199

  17. Revealing Additional Dimensions of Globalisation and Cultural Hegemony: A Response to Roland S. Persson's Call for Cultural Sensitivity in Gifted Studies

    ERIC Educational Resources Information Center

    Ambrose, Don

    2012-01-01

    In this commentary, the author finds the interdisciplinary approach of Roland S. Persson's (2012a) target article refreshing. Persson's (2012a) additional emphases on ethnocentricity, cultural bias and strong threads of influence from the global economy also are helpful. They shed light on some strong contextual influences that shape the…

  18. Gender Anarchy as Social Justice: An Analytic Reconstruction of the Idea of Epistemic Equality in Jane Roland Martin's "Reclaiming a Conversation"

    ERIC Educational Resources Information Center

    Seals, Greg

    2006-01-01

    Jane Roland Martin's later work, especially as represented in "The Schoolhome: Rethinking Schools for Changing Families," has been attacked as vague, essentialistic, and a formula for the (re)feminization of education. This paper does not attempt to defend Martin against these criticisms because such a defense seems impossible for…

  19. Nightblindness-associated transient tonic downgaze (NATTD) in infant boys with chin-up head posture.

    PubMed

    Simonsz, H J; Florijn, R J; van Minderhout, H M; Bergen, A A B; Kamermans, M

    2009-01-01

    Eleven infant boys presented with chin-up head posture, tonic downgaze and, on attempted upgaze, large-amplitude upward saccades with deceleration during the slow phase downward. The gaze-evoked upward saccades disappeared at the age of 2 or 3 years. In addition, they had high-frequency, small-amplitude horizontal pendular nystagmus that remained. Among these infant boys were 2 pairs of maternally related half-brothers, 2 cousins, and 2 siblings. Visual acuity ranged from 0.1 to 0.6, ERG-amplitudes (both A- and B-wave) were reduced, and severe myopia was found in 5 cases. Eight boys had CACNA1F mutations, and 1 boy had a NYX mutation, compatible with incomplete or complete congenital stationary nightblindness (iCSNB or cCSNB), respectively. This points to a defective synapse between the rod and the ON-bipolar cell causing the motility disorder: CACNA1F is located on the rod side of this synapse, whereas NYX is located on the side of the ON-bipolar cell. The coexistence of horizontal and vertical nystagmus has been previously described in dark-reared cats. PMID:20001510

  20. Intractable Facial Pain and Numb Chin due to Metastatic Esophageal Adenocarcinoma.

    PubMed

    Elahi, Foad; Luke, Whitney; Elahi, Fazel

    2014-01-01

    The etiologies of facial pain are innumerable, thus facial pain misdiagnosis and resultant mismanagement is common. Numb chin syndrome presents with hypoesthesia and/or anesthesia in the dermatomal distribution of the inferior alveolar or the mental nerve. In this case report, we will discuss a case of intractable facial pain in a 57-year-old male with a history of esophageal adenocarcinoma who was initially misdiagnosed and treated as trigeminal neuralgia. During clinical examination, the loss of sensation in the inferior alveolar nerve distribution was identified and led to the diagnosis of mandibular metastasis. The details of the clinical presentation will be discussed in the context of accurate identification and diagnosis. Focal radiation to the metastatic location along with sphenopalatine ganglion radiofrequency ablation and medication management provided significant pain relief. This case report provides additional information to the current medical knowledge and it enhances the clinical vigilance of the clinicians when they encounter similar cases. We concluded that patients with a history of neoplasms who present with atypical symptoms of facial pain should undergo further investigation with advanced imaging. Targeted treatment based on an accurate diagnosis is the foundation of pain management. PMID:25606033

  1. Orbital and Subcutaneous Emphysema Following Enucleation and Respiratory Distress in a Japanese Chin.

    PubMed

    Gornik, Kara R; Pirie, Christopher G; Alario, Anthony F

    2015-01-01

    A 7 yr old, neutered male Japanese chin presented to the Cummings School of Veterinary Medicine at Tufts University (CSVMTU) for evaluation of chronic unilateral orbital swelling that worsened following an episode of respiratory distress. The left eye had been enucleated 5 yr previously. Intermittent mild-to-moderate left orbital swelling had been noted by the owner since the initial surgery. Examination demonstrated a moderate-to-severe, soft, fluctuant swelling involving the left orbit with erythema of the overlying skin. Crepitus was noted over the occipital tuberosity. Computed tomography revealed a large volume of gas involving the left orbit. The gas extended caudally within the subcutaneous tissues to both hemimandibles, dorsal to the cranium, and partially surrounded the cranial neck. The presence of a mucosa-lined, air-filled space with a patent nasolacrimal duct was noted on orbital exploration. The lining was removed and the duct closed. Histopathology confirmed the presence of an epithelial lining. No recurrence of the swelling was observed on examination 8 wk after surgery. This is the first report documenting acute worsening of orbital swelling following an episode of respiratory distress. This case highlights the importance of addressing the nasolacrimal duct while performing an enculeation in a brachycephalic dog. PMID:26535462

  2. Cytodiagnosis of a Cutaneous Clear Cell Malignancy: Metastatic Renal Cell Carcinoma on Chin

    PubMed Central

    Mohan, Gyanendra; Chaturvedi, Sunanda; Khan, Shakir Ali

    2016-01-01

    Clear cell type of renal cell carcinoma (RCC) is most common urological malignancy. Several diagnostic challenges arise when it presents as a cutaneous nodule, being an uncommon presentation. Fine needle aspiration cytology (FNAC) of a cutaneous nodule is crucial for distinguishing primary tumours from metastatic tumours because cutaneous metastases represent a terminal stage of illness. Due to considerable overlap of cytomorphological features determination of primary warrants need of detailed clinical history and close inspection of every cytological detail. We report here a case of cutaneous metastasis of RCC on chin in a patient 11 years after nephrectomy. Though there are reports of RCC metastases diagnosed on histology, there are fewer cytology case reports. Cytological differential diagnosis has been discussed for arriving at the final diagnosis in case of clear cell tumours. Early and accurate diagnosis is mandatory for optimal treatment. Cytodiagnosis of cutaneous metastasis of RCC is uncommon due to its low suspicion index in cutaneous nodules. More so, it presents late and an unusual sites due to its resemblance to common dermatological diseases. PMID:26894079

  3. Vertical chin augmentation with interpositional porous polyethylene implants: a histologic study in monkeys.

    PubMed

    Magro-Filho, O; Kallal, R; Rangel-Garcia Júnior, I; Magro-Ernica, N

    1999-01-01

    The objective of this paper was to evaluate histologically the tissue reaction in the chin after a vertical augmentation using interpositional porous polyethylene (PPE) implants in monkeys. Six monkeys (Cebus apella) underwent an anterior horizontal mandibular osteotomy with implantation of an interpositional PPE implant to increase the vertical height. The animals were sacrificed 5 months postoperatively. Histologic preparations were stained with hematoxylin and eosin. The perimeter of the interface between the implant and the bone, the implant and the trabecular space, and the implant and the fibrous capsule were quantified using the NIH Image Analysis System (Image 1.60/PPC). In addition, the Tukey test was done. The study demonstrated that bone growth takes place within the pores of the implant; a fibrous capsule exists in some animals, where the implant has contact with the periosteum and mentalis muscle with few chronic inflammatory cells; and the 3 different tissues responded in statistically different manners. Perimeter analysis revealed 68.9% implant-bone contact, 22.9% implant-fibrous tissue contact, and 8.2% implant-trabecular space contact. PMID:10686842

  4. Lithospheric Structure in the southeastern margin of Tibetan Plateau by using ChinArray Data

    NASA Astrophysics Data System (ADS)

    Ding, Zhifeng

    2016-04-01

    The China Seismic Array Program (ChinArray) is to understand the deep structures and their relationship to seismic activity in the continent of China. The first phase of the program was carried out in the region of Yunnan, in the southeastern margin of the Tibetan Plateau. How is the relationship between the Plateau and surroundings blocks? How is the characteristics of the deep structures, especially along the faults we observed on the surface? We also want to know more about deep background structures where the strong earthquake occurred. The seismic array includes 350 broadband portable seismic stations, with the average interval of 35km. By using the seismic inversion methods, we obtained the 3-D seismic velocity structure, the shape of the Moho discontinuities, the seismic anisotropy of the lithospheric medium. These results could be used to build the 3-D model of the lithospheric structures. The low velocity zone in low crust was founded inside the Plateau area. Moho depth distribution was obtained from the seismic receiver function. They showed the different margins of the extension materials of Tibetan Plateau in deep from that on the surface. The Red River fault is the border of the blocks in crust. While it has no remarkable variation in mantle beneath the Red River fault. The seismic anisotropy figure showed that the directions of the splitted fast S waves are different in northern and southern part of the Yunnan area. We deduced that the extrusion of Tibetan Plateau was obstructed below the crust around the latitude of 26°N.

  5. Seismic Observations of the 15 February 2013 Chelyabinsk Meteor from Dense ChinArray

    NASA Astrophysics Data System (ADS)

    LI, L.; Wang, B.; Peng, Z.; Wang, W.

    2014-12-01

    Since the 1908 Tunguska event, the largest meteor was reported on 15 February 2013 around 03:20:00 UTC. The fireball exploded and dropped near Chelyabinsk, Russia. Massive energy released by meteor crash was recorded by the 500-station ChinArray deployed in southwest China at distances more than 4000 kilometers from the meteor event. About 20 minutes before the meteor event, an M5.8 event occurred in Tonga, and produced seismic waves that overlapped with the seismic signals from the meteor event. Here we separate the seismic phases from the two events using standard array processing techniques such as F-K analysis, beam-forming, and vespagram in the Generic Array Processing (GAP) code (Koper, 2005). F-K analysis provides an effective way to calculate the back azimuth and slowness of a seismic phase. With this method, we identify a phase with back azimuth of 339.1°and slowness of 37.46sec/deg as surface wave from meteor. Beam-forming technique can be used to amplify the signal of meteor generated surface wave and suppress incoherent noise and phases with different slowness from the Tonga event. Vespagram shows the appropriate slowness of ~35sec/deg at arrival of meteor's phase, confirming the F-K detection of surface wave. From the surface wave observation, we conclude that the seismic source of meteor is located on 61.39N 58.70E, which is ~700km away from the USGS location (55.15N 61.41E). Using the Praha relation [Karnik et al., 1962], we estimate a magnitude of Ms=3.94±0.18 in accordance with that of Ms~3.7 [Benoit Tauzin et al., 2013]. Our result is comparable to other observations with shorter epicentral distances, suggesting that dense seismic arrays can be used to detect weak seismic signals at long-range distances.

  6. Neuropsychological disorders related to interictal epileptic discharges during sleep in benign epilepsy of childhood with centrotemporal or Rolandic spikes.

    PubMed

    Baglietto, M G; Battaglia, F M; Nobili, L; Tortorelli, S; De Negri, E; Calevo, M G; Veneselli, E; De Negri, M

    2001-06-01

    Nine children (five males, four females; age range 6 years 1 month to 11 years 1 month) affected by benign epilepsy of childhood with centrotemporal or Rolandic spikes (BECRS) with EEG evidence of marked activation of interictal epileptic discharges (IEDs) during sleep, and nine unaffected control children matched for age, sex, and socioeconomic status, were enrolled in a prospective study. At the time of detection of IED activation during sleep, patients showed a mean Full-Scale IQ score within the normal range, but significantly below that of control participants; neuropsychological assessment revealed disorders in visuospatial short-term memory (Corsi's Block Tapping Test), attention, and cognitive flexibility (Trail Making Test and Stroop Color-Word Test), picture naming, and fluency (Benton's Naming Test and Word Fluency), visuoperceptual skill (Ghent-Poppelreuter and Street Gestalt Completion Tests) and visuomotor coordination (Bender Test). After detection of IED activation during sleep, children were followed up for 2 years. At the time of IED remission (T1), neuropsychological re-evaluation showed a notable increase in IQ score and a significant improvement (t-test: p<0.007) in visuomotor coordination, non-verbal short-term memory, sustained attention and mental flexibility, picture naming, and visual-perceptual performance. At T1, patients' performance did not differ from the controls (Mann-Whitney U test). PMID:11409830

  7. Health and Human Rights in Chin State, Western Burma: A Population-Based Assessment Using Multistaged Household Cluster Sampling

    PubMed Central

    Sollom, Richard; Richards, Adam K.; Parmar, Parveen; Mullany, Luke C.; Lian, Salai Bawi; Iacopino, Vincent; Beyrer, Chris

    2011-01-01

    Background The Chin State of Burma (also known as Myanmar) is an isolated ethnic minority area with poor health outcomes and reports of food insecurity and human rights violations. We report on a population-based assessment of health and human rights in Chin State. We sought to quantify reported human rights violations in Chin State and associations between these reported violations and health status at the household level. Methods and Findings Multistaged household cluster sampling was done. Heads of household were interviewed on demographics, access to health care, health status, food insecurity, forced displacement, forced labor, and other human rights violations during the preceding 12 months. Ratios of the prevalence of household hunger comparing exposed and unexposed to each reported violation were estimated using binomial regression, and 95% confidence intervals (CIs) were constructed. Multivariate models were done to adjust for possible confounders. Overall, 91.9% of households (95% CI 89.7%–94.1%) reported forced labor in the past 12 months. Forty-three percent of households met FANTA-2 (Food and Nutrition Technical Assistance II project) definitions for moderate to severe household hunger. Common violations reported were food theft, livestock theft or killing, forced displacement, beatings and torture, detentions, disappearances, and religious and ethnic persecution. Self reporting of multiple rights abuses was independently associated with household hunger. Conclusions Our findings indicate widespread self-reports of human rights violations. The nature and extent of these violations may warrant investigation by the United Nations or International Criminal Court. Please see later in the article for the Editors' Summary PMID:21346799

  8. Availability of ground water on Federal land near the Ak-Chin Indian Reservation, Arizona: a reconnaissance study

    USGS Publications Warehouse

    Wilson, Richard P.

    1979-01-01

    Sufficient ground water to provide about 2.1 million acre-feet in a 25-year period is available for delivery to the Ak-Chin Indian Reservation from Federal land in the Vekol Valley, Waterman Wash area, and Bosque area in south-central Arizona. Withdrawal of 85,000 acre-feet per year as required by the Ak-Chin water-supply act--Public Law 95-328--will greatly deplete the amount of water in storage and may cause land subsidence in the areas. Study concurrent with well-field development will enable design changes to minimize pumping costs , water-level declines, movement of poor-quality water into the well fields, and potential land subsidence and associated earth fissures. Surface and bore-hole geophysical testing, aquifer tests, and the development of simulative mathematical models will accomplish these goals and permit quantitative evaluations of the potential deleterious effects resulting from development of the water supply. (Woodard-USGS)

  9. Tales of Recombinant Femininity: "The Reincarnation of Golden Lotus," the "Chin P'ing Mei," and the Politics of Melodrama in Hong Kong.

    ERIC Educational Resources Information Center

    Fore, Steve

    1993-01-01

    Examines the film "The Reincarnation of Golden Lotus" and the text upon which it is loosely based, the "Chin P'ing Mei," and the relationship between it and modern Chinese culture. States that the film's screenplay is much less an adaptation of the source novel than it is a female-centered reworking of a particular narrative and thematic elements.…

  10. Reliability and Validity of Simplified Chinese Version of Roland-Morris Questionnaire in Evaluating Rural and Urban Patients with Low Back Pain

    PubMed Central

    Chen, Ziqiang; Wang, Xinhui; Zhu, Xiaodong; Zhang, Wei; Chen, Jiayu; Zhang, Diqing; Li, Ming

    2012-01-01

    Objective The causes of low back pain in China and Western countries are extremely different. We attempted to analyze the risk factors of low back pain in urban and rural patients under the dual economy with the simplified Chinese version of Roland-Morris disability questionnaire (SC-RMDQ) to demonstrate that SC-RMDQ could evaluate patients with low back pain arising from different causes. Methods Roland-Morris disability questionnaire was translated into SCRMDQ according to international guidelines for questionnaire adaptation. In this study, causes of low back pain of 187 outpatients and inpatients (99 urban patients and 88 rural patients) were analyzed. All patients underwent simplified Chinese version of Roland-Morris disability questionnaire (SC-RMDQ), simplified Chinese Oswestry disability index (SCODI) and visual analogue scale (VAS). Reliability was tested using reproducibility (intraclass coefficient of correlation – ICC) and internal consistency (Cronbach's alpha). Validity was tested using Pearson correlation analysis. Results The leading causes for low back pain were sedentariness (38.4%) and vibration (18.1%) in urban patients and waist bending (48.9%) and spraining (25%) in rural patients. Although causes of low back pain in the two groups of population were completely different, SCRMDQ had high internal consistency (Cronbach's α value of 0.874 in urban patients and 0.883 in rural patients) and good reproducibility (ICC value of .952 in urban patients and 0.949 in rural patients, P<0.01). SCRMDQ also showed significant correlation with Simplified Chinese version of Oswestry disability index (SCODI) and visual analogue scale (VAS) in rural areas (SCRMDQ-SCODI r = 0.841; SCRMDQ -VAS: r = 0.685, P<0.01) and in urban areas (SCRMDQ-SCODI: r = 0.818, P<0.01; SCRMDQ –VAS: r = 0.666, P<0.01). Conclusions Although causes of low back pain are completely different in rural and urban patients, SCRMDQ has a good reliability and validity, which

  11. Growth data of underprivileged children living in rural areas of Chin State, Burma/Myanmar, compared to the WHO reference growth standards: an observational study

    PubMed Central

    Prenkert, Malin; Ehnfors, Margareta

    2016-01-01

    Objectives To explore growth data (height-for-age, weight-for-age and BMI-for-age) of children living in poor socioeconomic conditions in rural areas of Chin State, Burma/Myanmar; and to compare these data with the growth and development z-score (GDZ) values for school-aged children and adolescents, provided by the WHO. Setting A support and educational programme, run by the Swedish association Chin Development and Research Society (CDRS), was carried out among underprivileged school-aged children, unable to attend school without economic and practical support, living in villages and remote areas in Chin State. Participants Community leaders who were well familiar with the citizens in the community identified children in need of this support. Other community members could also suggest or apply for this. The sample includes all participating children in the CDRS programme at the time of the data collection in six townships. The children were placed in host families, close to a suitable school. Two samples with a total of 639 children from 144 villages and remote areas were obtained: 1. Children in the CDRS Chin Programme (CCP) (2007–2010) comprised 558 children: 50% girls and boys. 2. Children in the Chin Society (CCS) (2010) comprised 81 children: 44% girls and 56% boys. Primary outcome measures Growth data. Results All growth data from both groups deviated significantly from the WHO standard references (p≤0.001). The prevalence of stunting (height-for-age ≤–2SD) was 52% among girls and 68% among boys. High levels of wasting (weight-for-age ≤–2SD) were found among girls 29% and boys 36% aged 5–10 years. In addition, severe thinness (BMI-for-age ≤–2SD) was found among girls 31% and boys 44%, all results to be compared to the expected 2.27%. Conclusions Many more than expected—according to the WHO reference values—in CCP and CCS suffered from stunting, wasting and thinness. PMID:26787249

  12. Comparative Analysis of Reproductive Traits in Black-Chinned Tilapia Females from Various Coastal Marine, Estuarine and Freshwater Ecosystems

    PubMed Central

    Kantoussan, Justin; Ndiaye, Papa; Thiaw, Omar Thiom; Albaret, Jean-Jacques

    2012-01-01

    The black-chinned tilapia Sarotherodon melanotheron is a marine teleost characterised by an extreme euryhalinity. However, beyond a certain threshold at very high salinity, the species exhibits impaired growth and precocious reproduction. In this study, the relationships between reproductive parameters, environmental salinity and condition factor were investigated in wild populations of this species that were sampled in two consecutive years (2003 and 2004) from three locations in Senegal with different salinities: Guiers lake (freshwater, 0 psu), Hann bay (seawater, 37 psu) and Saloum estuary (hypersaline water, 66–127 psu). The highest absolute fecundity and spawning weight were recorded in seawater by comparison to either freshwater or hypersaline water whereas the poorest condition factors were observed in the most saline sampling site. These results reflect higher resource allocation to the reproduction due to the lowest costs of adaptation to salinity in seawater (the natural environment of this species) rather than differences in food resources at sites and/or efficiency at foraging and prey availability. Fecundities, oocyte size as well as spawning weight were consistent from year to year. However, the relative fecundity in the Saloum estuary varied significantly between the dry and rainy raisons with higher values in the wet season, which seems to reflect seasonal variations in environmental salinity. Such a reproductive tactic of producing large amounts of eggs in the rainy season when the salinity in the estuary was lower, would give the fry a better chance at survival and therefore assures a high larval recruitment. An inverse correlation was found between relative fecundity and oocyte size at the two extreme salinity locations, indicating that S. melanotheron has different reproductive strategies in these ecosystems. The adaptive significance of these two reproductive modes is discussed in regard to the heavy osmotic constraint imposed by extreme

  13. Chin augmentation - slideshow

    MedlinePlus

    ... Go to slide 5 out of 5 Normal anatomy Overview The mandible, or lower jaw, determines much ... M. is among the first to achieve this important distinction for online health information and services. Learn ...

  14. Tribute to Christine Chin

    ERIC Educational Resources Information Center

    Teo, Tang Wee; Tan, Aik-Ling

    2015-01-01

    It has been more than 3 years since Christine left us. She has left a lasting legacy of her academic brilliance among the science education community. This paper pays tribute to Christine's fine research work that has shaped and continues to shape science education research in the field of questioning and argumentation.

  15. Tribute to Christine Chin

    NASA Astrophysics Data System (ADS)

    Teo, Tang Wee; Tan, Aik-Ling

    2015-09-01

    It has been more than 3 years since Christine left us. She has left a lasting legacy of her academic brilliance among the science education community. This paper pays tribute to Christine's fine research work that has shaped and continues to shape science education research in the field of questioning and argumentation.

  16. Mystery behind Non-Healing Wound at Chin Region - Myiasis due to Neglected Trauma - A Case Report with Review of Literature.

    PubMed

    Khandelwal, Pulkit; Hajira, Neha

    2016-06-01

    Myiasis is the infestation of human beings with fly larvae which feed on host's living or dead tissue. Diagnosis of this condition is made by the presence of larvae in affected body parts. The standard treatment is the mechanical removal of the maggots from the lesion and management of the general systemic condition. This paper report a case of myiasis at the chin region in a 45-year-old male managed by manual removal of larvae after topical application of turpentine oil, surgical debridement of necrotic tissues and antimicrobial therapy. PMID:27504426

  17. Comment on “A Quantum Network System of QSS-QDC Using χ-Type Entangled States" [Chin. Phys. Lett. 29 (2012) 050303

    NASA Astrophysics Data System (ADS)

    Liu, Zhi-Hao; Chen, Han-Wu; Liu, Wen-Jie; Xu, Juan

    2013-03-01

    Two quantum secret sharing (QSS) protocols in a multiuser quantum direct communication (QDC) network system were put forward by Hong et al. [Chin. Phys. Lett. 29 (2012) 050303]. However, we find that either agent (Bob or Charlie) alone can obtain half the information about the sender's secret without collaboration with the other, which does not satisfy the security requirement of QSS. Moreover, the secret message sent by Alice in the second protocol can be eavesdropped on or its communication can be disturbed by the builder of quantum channels (Trent).

  18. Mystery behind Non-Healing Wound at Chin Region - Myiasis due to Neglected Trauma – A Case Report with Review of Literature

    PubMed Central

    Hajira, Neha

    2016-01-01

    Myiasis is the infestation of human beings with fly larvae which feed on host’s living or dead tissue. Diagnosis of this condition is made by the presence of larvae in affected body parts. The standard treatment is the mechanical removal of the maggots from the lesion and management of the general systemic condition. This paper report a case of myiasis at the chin region in a 45-year-old male managed by manual removal of larvae after topical application of turpentine oil, surgical debridement of necrotic tissues and antimicrobial therapy. PMID:27504426

  19. Chin shield osteotomy--a new genioplasty technique avoiding a deep mento-labial fold in order to increase the labial competence.

    PubMed

    Triaca, A; Furrer, T; Minoretti, R

    2009-11-01

    The authors report a genioplasty technique in which the advancement of an anterior mandibular segment is executed with a specific osteotomy form that helps to avoid a deep mentolabial fold and improves labial competence. The osteotomy presented achieves this by creating a 'chin shield' where the mandibular segment advanced is relatively high on the side of the buccal cortex and lower on the lingual side and where the osteotomy or down-fracture in between is in an oblique angle in the sagittal plane. PMID:19640681

  20. Evaluating the Training Effects of Two Swallowing Rehabilitation Therapies Using Surface Electromyography-Chin Tuck Against Resistance (CTAR) Exercise and the Shaker Exercise.

    PubMed

    Sze, Wei Ping; Yoon, Wai Lam; Escoffier, Nicolas; Rickard Liow, Susan J

    2016-04-01

    In this study, the efficacy of two dysphagia interventions, the Chin Tuck against Resistance (CTAR) and Shaker exercises, were evaluated based on two principles in exercise science-muscle-specificity and training intensity. Both exercises were developed to strengthen the suprahyoid muscles, whose contractions facilitate the opening of the upper esophageal sphincter, thereby improving bolus transfer. Thirty-nine healthy adults performed two trials of both exercises in counter-balanced order. Surface electromyography (sEMG) recordings were simultaneously collected from suprahyoid muscle group and sternocleidomastoid muscle during the exercises. Converging results using sEMG amplitude analyses suggested that the CTAR was more specific in targeting the suprahyoid muscles than the Shaker exercise. Fatigue analyses on sEMG signals further indicated that the suprahyoid muscle group were equally or significantly fatigued (depending on metric), when participants carried out CTAR compared to the Shaker exercise. Importantly, unlike during Shaker exercise, the sternocleidomastoid muscles were significantly less activated and fatigued during CTAR. Lowering the chin against resistance is therefore sufficiently specific and intense to fatigue the suprahyoid muscles. PMID:26837612

  1. Evaluation of a neurotherapy program for a child with ADHD with Benign Partial Epilepsy with Rolandic Spikes (BPERS) using event-related potentials

    PubMed Central

    Pąchalska, Maria; Kropotov, Iurii D.; Mańko, Grzegorz; Lipowska, Małgorzata; Rasmus, Anna; Łukaszewska, Beata; Bogdanowicz, Marta; Mirski, Andrzej

    2012-01-01

    Summary Background We hypothesized that there would be a good response to relative beta training, applied to regulate the dynamics of brain function in a patient with benign partial epilepsy with Rolandic Spikes (BPERS), associated with neuropsychiatric deficits resembling the symptoms of attention deficit-hyperactivity disorder (ADHD). Case Report The patient, E.Z., age 9.3, was suffering from neuropsychiatric symptoms, cognitive dysfunction, especially attention deficits, and behavioral changes, rendering him unable to function independently in school and in many situations of everyday life. He was treated for epilepsy, but only slight progress was made. The patient took part in 20 sessions of relative beta training combined with behavioral training. We used standardized neuropsychological testing, as well as ERPs before the experiment and after the completion of the neurotherapy program. Neuropsychological testing at baseline showed multiple cognitive deficits. Over the course of neurotherapy, E.Z.’s verbal and non-verbal IQ increased significantly. His cognitive functions also improved, including immediate and delayed logical and visual recall on the WMS-III, maintaining attention on the WMS-III, and executive functions, but remained below norms. Physiologically, the patient showed substantial changes after neurotherapy, including fewer spikes and an increased P300 NOGO component. Conclusions The cognitive deficits characteristic for ADHD in a child with BPERS may be unresponsive to antiepileptic treatment, but are reversible after a carefully selected neurotherapy program, combined with antiepileptic treatment. Event Related Potentials (ERPs) in the GO/NOGO task can be used to assess functional brain changes induced by neurotherapeutical programs. PMID:23111748

  2. Polybrominated diphenyl ethers in fat samples from White-chinned Petrels (Procellaria aequinoctialis) and Spectacled Petrels (P. conspicillata) off southern Brazil.

    PubMed

    Cipro, Caio V Z; Colabuono, Fernanda I; Taniguchi, Satie; Montone, Rosalinda C

    2013-12-15

    Polybrominated diphenyl ethers (PBDEs) have been gaining much visibility in environmental chemical studies due to their similarity to PCBs and growing reports of harmful effects. The fact that these contaminants have not yet undergone bans or restrictions on the global level underscores the need for data on their occurrence. In the present study, fat samples from 26 White-chinned Petrels (Procellaria aequinoctialis) and 3 Spectacled Petrels (P. conspicillata) collected dead ashore or as bycatch of longline fisheries in southern Brazil were analyzed to determine concentrations of seven congeners (IUPAC #28, 47, 99, 100, 153, 154 and 183). Concentrations of ΣPBDEs ranged from not detectable to 72.70 ng g(-1) (wet weight), comparatively lower than concentrations reported for seabird samples in northern hemisphere. The most detected congeners were 153, 154 and 183. This pattern is close to that previously reported for birds of the same group, but not those from the same region. PMID:24143957

  3. Influence of environmental factors on abundance and temporal variation of benthic fauna resources in the eutrophic Tha Chin estuary, Samut Sakhon province, Thailand.

    PubMed

    Ritnim, Nittaya; Meksumpun, Charumas

    2011-01-01

    The influence of environmental factors on the abundance and temporal variation of benthic fauna resources was studied in the eutrophic Tha Chin estuary located in Samut Sakhon province. The objectives were to analyze the status of abundance and temporal variation of the benthic fauna and to clarify the impacts from environmental factors (water and sediment quality). Field surveys were conducted monthly from August 2007 to March 2008 at 11 sampling stations in the estuary. Based on freshwater runoff volumes, the high-, medium-, and low-loading periods were categorized to be from August to October 2007, November to December 2007, and January to March 2008, respectively. The benthic fauna resources were composed of 57 species in eight phyla. Annelids were the dominant species (with the maximum density being 19,885 individuals/m2), followed by the mollusks. Both densities decreased during the low-loading period in 2008. Water quality deteriorated during the high-loading period. Land-based wastewater discharges decreased the levels of salinity and dissolved oxygen but dramatically increased various nutrients. Consequently, the sediment quality deteriorated during the medium-loading period. Bottom deposits during this time depicted high accumulation of acid volatile sulfides (more than 0.76 mg/g dry weight). Analyzing the environmental relationships, deposit feeders (for example, Nereis sp. and Prionospio sp.) and a clam (Arcuatula sp.) showed potential as bio-indicators for environmental monitoring. The overall results revealed the importance of changes in the water and sediment qualities that had an influence on related benthic resources. The increase in the level of NH4(+)-N had a negative impact on the economic clam species, while the sedimentary TOM showed positive correlation (P < 0.05) with this increase. The succession of groups based on feeding behavior seemed to correspond with stress in eutrophication along the salinity gradient and in different estuarine

  4. Integration of aquatic ecology and biological oceanographic knowledge for development of area-based eutrophication assessment criteria leading to water resource remediation and utilization management: a case study in Tha Chin, the most eutrophic river of Thailand.

    PubMed

    Meksumpun, Charumas; Meksumpun, Shettapong

    2008-01-01

    This research was carried out in Tha Chin Watershed in the central part of Thailand with attempts to apply multidisciplinary knowledge for understanding ecosystem structure and response to anthropogenic pollution and natural impacts leading to a proposal for an appropriate zonation management approach for sustainable utilization of the area. Water quality status of the Tha Chin River and Estuary had been determined by analyzing ecological, hydrological, and coastal oceanographic information from recent field surveys (during March 2006 to November 2007) together with secondary data on irrigation, land utilization, and socio-economic status.Results indicated that the Tha Chin River and Estuary was eutrophic all year round. Almost 100% of the brackish to marine areas reflected strongly hypertrophic water condition during both dry and high-loading periods. High NH(4)(+) and PO(4)(3-) loads from surrounding agricultural land use, agro-industry, and community continuously flew into the aquatic environment. Deteriorated ecosystem was clearly observed by dramatically low DO levels (ca 1 mg/l) in riverine to coastal areas and Noctiluca and Ceratium red tide outbreaks occurred around tidal front closed to the estuary. Accordingly, fishery resources were significantly decreased. Some riverine benthic habitats became dominated by deposit-feeding worms e.g. Lumbriculus, Branchiura, and Tubifex, while estuarine benthic habitats reflected succession of polychaetes and small bivalves. Results on analysis on integrated ecosystem responses indicated that changing functions were significantly influenced by particulates and nutrients dynamics in the system.Based on the overall results, the Tha Chin River and Estuary should be divided into 4 zones (I: Upper freshwater zone; II: Middle freshwater zone; III Lower freshwater zone; and IV: Lowest brackish to marine zone) for further management schemes on water remediation. In this study, the importance of habitat morphology and water flow

  5. Identification of Reliable Sulcal Patterns of the Human Rolandic Region.

    PubMed

    Mellerio, Charles; Lapointe, Marie-Noël; Roca, Pauline; Charron, Sylvain; Legrand, Laurence; Meder, Jean-François; Oppenheim, Catherine; Cachia, Arnaud

    2016-01-01

    A major feature of the human cortex is its huge morphological variability. Although a comprehensive literature about the sulco-gyral pattern of the central region is available from post-mortem data, a reliable and reproducible characterization from in vivo data is still lacking. The aim of this study is to test the reliability of morphological criteria of the central region sulci used in post-mortem data, when applied to in vivo magnetic resonance imaging (MRI) data. Thirty right-handed healthy individuals were included in the study. Automated segmentation and three dimensional (3D) surface-based rendering were obtained from clinical 3D T1-weighted MRI. Two senior radiologists labeled the three sulci composing the central region (precentral [PreCS], central [CS] and postcentral [PostCS]) and analyzed their morphological variations using 47 standard criteria derived from Ono's atlas based on post-mortem data. For each criterion, inter-rater concordance and comparison with the occurrence frequency provided in Ono's atlas were estimated. Overall, the sulcal pattern criteria derived from MRI data were highly reproducible between the raters with a high mean inter-rater concordance in the three sulci (CS: κ = 0.92 in left hemisphere/κ = 0.91 in right hemisphere; PreCS: κ = 0.91/κ = 0.93; PostCS: κ = 0.84/0.79). Only a very limited number of sulcal criteria significantly differed between the in vivo and the post-mortem data (CS: 2 criteria in the left hemisphere/3 criteria in the right hemisphere; PreCS: 3 in the left and right hemispheres; PostCS: 3 in the left hemisphere and 5 in the right hemisphere). Our study provides a comprehensive description of qualitative sulcal patterns in the central region from in vivo clinical MRI with high agreement with previous post-mortem data. Such identification of reliable sulcal patterns of the central region visible with standard clinical MRI data paves the way for the detection of subtle variations of the central sulcation associated with variations of normal or pathological functioning. PMID:27582700

  6. The Roland Maze Project — Cosmic Ray Registration at Schools

    NASA Astrophysics Data System (ADS)

    Feder, J.; JȨDRZEJCZAK, K.; Karczmarczyk, J.; Lewandowski, R.; Swarzyński, J.; Szabelska, B.; Szabelski, J.; Tokarski, P.; Wibig, T.

    Experimental studies of cosmic rays at the highest energies (above 1018 eV) are the main scientific goal of the projected large area network of extensive air shower detectors. Placing the detectors on the roofs of high school buildings will lower the cost by using the existing urban infrastructure (INTERNET, power supply, etc.), and can be a very efficient way of science popularisation by engaging high school students in the research program. 30 high schools in Łódź are already involved in the project. The project has recently obtained some financial support from the City Council of Łódź. The donation enabled us to start experimental work on detector construction details. A cycle of lectures and seminars devoted to different aspects of project realization (detector construction, on-line data acquisition system, C++ programming) has been organized for students at our Institute and at schools.

  7. Identification of Reliable Sulcal Patterns of the Human Rolandic Region

    PubMed Central

    Mellerio, Charles; Lapointe, Marie-Noël; Roca, Pauline; Charron, Sylvain; Legrand, Laurence; Meder, Jean-François; Oppenheim, Catherine; Cachia, Arnaud

    2016-01-01

    A major feature of the human cortex is its huge morphological variability. Although a comprehensive literature about the sulco-gyral pattern of the central region is available from post-mortem data, a reliable and reproducible characterization from in vivo data is still lacking. The aim of this study is to test the reliability of morphological criteria of the central region sulci used in post-mortem data, when applied to in vivo magnetic resonance imaging (MRI) data. Thirty right-handed healthy individuals were included in the study. Automated segmentation and three dimensional (3D) surface-based rendering were obtained from clinical 3D T1-weighted MRI. Two senior radiologists labeled the three sulci composing the central region (precentral [PreCS], central [CS] and postcentral [PostCS]) and analyzed their morphological variations using 47 standard criteria derived from Ono’s atlas based on post-mortem data. For each criterion, inter-rater concordance and comparison with the occurrence frequency provided in Ono’s atlas were estimated. Overall, the sulcal pattern criteria derived from MRI data were highly reproducible between the raters with a high mean inter-rater concordance in the three sulci (CS: κ = 0.92 in left hemisphere/κ = 0.91 in right hemisphere; PreCS: κ = 0.91/κ = 0.93; PostCS: κ = 0.84/0.79). Only a very limited number of sulcal criteria significantly differed between the in vivo and the post-mortem data (CS: 2 criteria in the left hemisphere/3 criteria in the right hemisphere; PreCS: 3 in the left and right hemispheres; PostCS: 3 in the left hemisphere and 5 in the right hemisphere). Our study provides a comprehensive description of qualitative sulcal patterns in the central region from in vivo clinical MRI with high agreement with previous post-mortem data. Such identification of reliable sulcal patterns of the central region visible with standard clinical MRI data paves the way for the detection of subtle variations of the central sulcation associated with variations of normal or pathological functioning. PMID:27582700

  8. Burkitt leukemia with numb chin syndrome and cavernous sinus involvement.

    PubMed

    Seixas, Daniela Vasconcelos; Lobo, Ana Luísa; Farinha, Nuno Jorge; Cavadas, Laurentina; Campos, Maria Manuel; Ayres-Basto, Margarida; Pimenta, Maria Teresa Lavandeira

    2006-05-01

    Cavernous sinus syndrome is a rare event. Non-Hodgkin lymphomas, are one possible cause. Neurological presentation of these lymphomas is also exceptional. We report the case of an 11-year-old boy that developed a right third cranial nerve palsy and numbness in the distribution of the right mental nerve, with normal CSF, and enlargement of cavernous sinus on the same side, who was diagnosed Burkitt leukemia. PMID:16621630

  9. The Roland Maze Project school-based extensive air shower network

    NASA Astrophysics Data System (ADS)

    Feder, J.; Jȩdrzejczak, K.; Karczmarczyk, J.; Lewandowski, R.; Swarzyński, J.; Szabelska, B.; Szabelski, J.; Wibig, T.

    2006-01-01

    We plan to construct the large area network of extensive air shower detectors placed on the roofs of high school buildings in the city of Łódź. Detection points will be connected by INTERNET to the central server and their work will be synchronized by GPS. The main scientific goal of the project are studies of ultra high energy cosmic rays. Using existing town infrastructure (INTERNET, power supply, etc.) will significantly reduce the cost of the experiment. Engaging high school students in the research program should significantly increase their knowledge of science and modern technologies, and can be a very efficient way of science popularisation. We performed simulations of the projected network capabilities of registering Extensive Air Showers and reconstructing energies of primary particles. Results of the simulations and the current status of project realisation will be presented.

  10. Language in Benign Childhood Epilepsy with Centro-Temporal Spikes Abbreviated Form: Rolandic Epilepsy and Language

    ERIC Educational Resources Information Center

    Monjauze, C.; Tuller, L.; Hommet, C.; Barthez, M.A.; Khomsi, A.

    2005-01-01

    Although Benign Childhood Epilepsy with Centrotemporal Spikes (BECTS) has a good prognosis, a few studies have suggested the existence of language disorders relating to the interictal dysfunction of perisylvian language areas. In this study, we focused on language assessment in 16 children aged 6-15 currently affected by BECTS or in remission. An…

  11. Atypical hemispheric asymmetries for the processing of phonological features in children with rolandic epilepsy.

    PubMed

    Bedoin, Nathalie; Ferragne, Emmanuel; Lopez, Céline; Herbillon, Vania; De Bellescize, J; des Portes, Vincent

    2011-05-01

    We assessed language lateralization in 177 healthy 4- to 11-year-old children and adults and atypical asymmetries associated with unilateral epileptic foci in 18 children with benign epilepsy with centrotemporal spikes (BECTS). Dichotic listening results revealed two indices of immature functional asymmetry when the focus was left-sided (BECTS-L). First, children with BECTS-L did not show left hemisphere dominance for the processing of place of articulation, which was recorded in children with BECTS-R and control children. On the contrary, healthy children exhibited a gradual increase in left hemisphere dominance for place processing during childhood, which is consistent with the shift from global to finer-grained acoustic analysis predicted by the Developmental Weighting Shift model. Second, children with BECTS-L showed atypical left hemisphere involvement in the processing of the voiced value (+V), associated with a long acoustic event in French stop consonants, whereas right hemisphere dominance increased with age for +V processing in healthy children. BECTS-L, therefore, interferes with the development of left hemisphere dominance for specific phonological mechanisms. PMID:21470917

  12. Eötvös, Baron Lóránd [Roland] von (1848-1919)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Hungarian physicist, born in Pest (now part of Budapest), became professor of experimental physics there. Worked on wide range of physical problems including gravitation, and invented the Eötvös balance, a torsion balance. With it, he tested (in what became known as the Eötvös experiment) the equivalence principle that gravitational mass and inertial mass are equivalent; he found that they were i...

  13. "The Source of Learning Is Thought" Reading the "Chin-ssu lu" (???) with a "Western Eye"

    ERIC Educational Resources Information Center

    Reichenbach, Roland

    2016-01-01

    The contribution focuses on Neo-Confucian texts as collected by Zhu Xi (?? 1130-1200) and Lü Zuqian (1137-1181) and is a look from the "outside", from the perspective of German theories of Bildung ("self-cultivation"). It aims at demonstrating that among other insights that today's readers may gather from Neo-Confucian…

  14. Sleep-related, low voltage Rolandic and vertex spikes: an EEG marker of benignity in infancy-onset focal epilepsies.

    PubMed

    Bureau, Michelle; Cokar, Ozlem; Maton, Bruno; Genton, Pierre; Dravet, Charlotte

    2002-03-01

    Although benign forms of epilepsies with onset in infancy have recently been recognized, the occurrence of seizures in an infant or very young child is very often an event of great significance and the prognosis concerning both epilepsy and neuropsychological development must be guarded. No reliable clinical or electroencephalographic (EEG) markers that can predict the outcome have been described. In a retrospective series of 10 patients, we found a peculiar EEG pattern seen across sleep stages, but not in the waking state in infants whose first seizures appeared before the age of 1 year, and which were mostly complex focal. In all cases, follow-up showed a favourable outcome with complete seizure remission and no cognitive impairment. The specificity of these EEG changes was 100%, but the sensitivity was lower, since they were not seen in some of the infants with the same favourable outcome. We discuss the clinical similarities between our patients and those cases reported earlier by other authors as benign, non-familial or familial focal epilepsies, in whom, however, no interictal abnormalities had been seen on the EEG. Such EEG changes are probably specific to benign, self-limited, early onset focal epilepsies. PMID:11967175

  15. Purely cutaneous Langerhans cell histiocytosis presenting as an ulcer on the chin in an elderly man successfully treated with thalidomide

    PubMed Central

    Subramaniyan, Radhakrishnan; Ramachandran, Rajagopal; Rajangam, Gnanasekaran; Donaparthi, Navya

    2015-01-01

    Langerhans cell histiocytosis (LCH) is a rare, clonal proliferative disorder of Langerhans’ cells of unknown etiology. Although the clinical presentation and therapeutic approach to the disease in children have been well established; limited data is available about the disease in adults. Purely cutaneous involvement of LCH in a man older than 70 years has rarely been described. Herein we report the case of a 71-year-old man with cutaneous LCH confined to the perioral region, scalp, and flexures successfully treated with thalidomide. PMID:26753141

  16. Holocene left-slip rate determined by cosmogenic surface dating on the Xidatan segment of the Kunlun Fault (Qinghai, Chin

    SciTech Connect

    Guoguang, Z; Caffee, M; Finkel, R; G,; demer, Y; Meriaux, A S; Qunlu,; Ryerson, F J; Tapponnier, P; Van der Woerd, J

    1998-09-01

    Cosmogenic dating, using in-situ 26A1 and 10Be in quartz pebbles from alluvial terrace surfaces, constrains the late Holocene slip rate on the Xidatan segment of the Kuniun fault in northeastern Tibet. Two terrace risers offset by 24 ± 3 and 33 f± 4m, having respective ages of 1788 ± 388 and 2914 ± 471 yr, imply a slip rate of 12.1 ± 2.6 mm/yr. The full range of ages obtained ((less than or equal to) 22.8 k.y., most of them between 6.7 and 1.4 k.y.) confirm that terrace deposition and incision, hence landform evolution, are modulated by post-glacial climate change. Coupled with minimum offsets of 9-12 m, this slip rate implies that great earthquakes (M-8) with a recurrence time of 800-1000 yr. rupture the Kunlun fault n

  17. Alveolar ridge augmentation using chin bone graft, bovine bone mineral, and titanium mesh: Clinical, histological, and histomorphomtric study

    PubMed Central

    Khamees, Jihad; Darwiche, Mohammad Atef; Kochaji, Nabil

    2012-01-01

    Background: Resorption of the alveolar ridge often leaves insufficient bone volume. Very few studies have investigated the quantity and quality of bone formation in humans, following alveolar ridge augmentation, using autogenous bone and bovine bone mineral (BBM) under titanium mesh. Materials and Methods: Sixteen alveolar bone defects divided into two groups; control group with symphyseal autogenous bone covered by titanium mesh; and test group with symphyseal autogenous bone mixed with BBM in 1: 1 ratio and covered by titanium mesh. The outcomes were evaluated clinically, histologically, and histomorphometrically. Results: Clinical measurements showed that the horizontal bone gain was 3.44±0.54 mm and 2.88±0.57 mm, on average, for control group and test group, respectively. While graft absorption was 2.66±0.98 mm (43.62%) and 1.67±1.00 mm (36.65%), on average, for control group and test group, respectively. In the test group, BBM particles were still recognizable, on histologic analysis. They were surrounded completely or partly by newly formed bone. Clear signs of resorption of the BBM were found, with osteoclast cell noticed in the area. Histomorphometrically, the newly formed bone was 78.40%±13.97% and 65.58%±6.59%, whereas connective tissue constituted 21.60%±13.97% and 23.87%±4.79% for control group and test group, respectively. The remaining BBM particles occupied 10.55%±1.80%. All differences between the control and test groups were not significant (P>.05). Conclusion: This investigation suggests that horizonal ridge augmentation with titanium mesh and autogenous bone alone or mixed with BBM are predictable and ridges were augmented even if mesh exposure occurs. PMID:23055591

  18. The Role of Selenium in HIV Infection Cosby A Stone, Kosuke Kawai, Roland Kupka, Wafaie W Fawzi Harvard School of Public Health

    PubMed Central

    Stone, Cosby A; Kawai, Kosuke; Kupka, Roland; Fawzi, Wafaie W.

    2010-01-01

    HIV infection is a global disease that disproportionately burdens populations with nutritional vulnerabilities. Laboratory experiments have shown that selenium has an inhibitory effect on HIV in vitro through antioxidant effects of glutathione peroxidase and other selenoproteins. Numerous studies have reported low selenium status in HIV-infected individuals, and serum selenium concentration declines with disease progression. Some cohort studies have shown an association between selenium deficiency and progression to AIDS or mortality. In several randomized controlled trials, selenium supplementation has reduced hospitalizations, diarrheal morbidity, and improved CD4 cell counts, but the evidence remains mixed. Additional trials are recommended to study the effect of selenium supplementation on opportunistic infections, and other HIV disease related comorbidities in the context of highly active antiretroviral therapy in both developing and developed countries. PMID:20961297

  19. 9. GATEHOUSE, INTERIOR, COUNTERSHAFT WHICH HELD BELT ATTACHED TO ENGINE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    9. GATEHOUSE, INTERIOR, COUNTERSHAFT WHICH HELD BELT ATTACHED TO ENGINE FOR HYPOCHLORITE MIXER, VIEW EAST - Lake Roland Dam, Gatehouse, Spanning outlet of Lake Roland near Woodbridge Road, Towson, Baltimore County, MD

  20. Acquired Language Disorders.

    ERIC Educational Resources Information Center

    Raymer, Anastasia M.

    2001-01-01

    This article discusses advances in structural and functional neuroimaging that indicate that, in general, nonfluent aphasias are associated with left pre-rolandic lesions and fluent aphasias occur with left post-rolandic lesions that spare pre-rolandic areas. However, functional neuroimaging studies have also shown that neural dysfunction often…

  1. Deoxycholic Acid Injection

    MedlinePlus

    ... severe submental fat ('double chin'; fatty tissue located under the chin). Deoxycholic acid injection is in a ... as a liquid to be injected subcutaneously (just under the skin) by a doctor. Your doctor will ...

  2. Deoxycholic Acid Injection

    MedlinePlus

    Deoxycholic acid injection is used to improve the appearance and profile of moderate to severe submental fat ('double chin'; fatty tissue located under the chin). Deoxycholic acid injection is in a class of medications called ...

  3. Football acne--an acneiform eruption.

    PubMed

    Farber, G A; Burks, J W; Hegre, A M; Brown, G R

    1977-09-01

    Football acne is a peculiar form of localized acneiform eruption of the chin that occurs in acne-prone individuals, as a result of the use of a protective chin strap under conditions of physical and emotional stress. Perhaps it is a locus minoris resistentiae phenomenon. The condition responds favorably to the removal of the chin strap and to the usual topical and systemic acne therapies. PMID:142615

  4. Aping our ancestors

    NASA Astrophysics Data System (ADS)

    Ennos, Roland

    2014-08-01

    Roland Ennos argues that the abilities of the great apes to cope in the dangerous mechanical environment of the forest canopy are part of the human species' intellectual inheritance and are intimately connected with our abilities as physicists.

  5. How Exercise Can Help

    MedlinePlus Videos and Cool Tools

    ... be active. That is, they need to improve muscle tone around the joint -- it actually protects the joint. Dr. Roland Moskowitz: If you strengthen the muscles and stabilize the joint, you decrease the instability ...

  6. 42 CFR 84.122 - Breathing resistance test; minimum requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...-mounted (without particulate filter) 60 75 20 Front-mounted or back-mounted (with approved particulate filter) 70 85 20 Chin-style (without particulate filter) 40 55 20 Chin-style (with approved particulate filter) 65 80 20 Escape (without particulate filter) 60 75 20 Escape (with approved particulate...

  7. 42 CFR 84.122 - Breathing resistance test; minimum requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...-mounted (without particulate filter) 60 75 20 Front-mounted or back-mounted (with approved particulate filter) 70 85 20 Chin-style (without particulate filter) 40 55 20 Chin-style (with approved particulate filter) 65 80 20 Escape (without particulate filter) 60 75 20 Escape (with approved particulate...

  8. 42 CFR 84.122 - Breathing resistance test; minimum requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...-mounted (without particulate filter) 60 75 20 Front-mounted or back-mounted (with approved particulate filter) 70 85 20 Chin-style (without particulate filter) 40 55 20 Chin-style (with approved particulate filter) 65 80 20 Escape (without particulate filter) 60 75 20 Escape (with approved particulate...

  9. 42 CFR 84.122 - Breathing resistance test; minimum requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...-mounted (without particulate filter) 60 75 20 Front-mounted or back-mounted (with approved particulate filter) 70 85 20 Chin-style (without particulate filter) 40 55 20 Chin-style (with approved particulate filter) 65 80 20 Escape (without particulate filter) 60 75 20 Escape (with approved particulate...

  10. 42 CFR 84.122 - Breathing resistance test; minimum requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...-mounted (without particulate filter) 60 75 20 Front-mounted or back-mounted (with approved particulate filter) 70 85 20 Chin-style (without particulate filter) 40 55 20 Chin-style (with approved particulate filter) 65 80 20 Escape (without particulate filter) 60 75 20 Escape (with approved particulate...

  11. The Scholarship of Teaching and Learning in Teaching Sociology: 1973-2009

    ERIC Educational Resources Information Center

    Paino, Maria; Blankenship, Chastity; Grauerholz, Liz; Chin, Jeffrey

    2012-01-01

    This article updates and extends research by Baker and Chin, who tracked changes in studies published in Teaching Sociology from 1973 to 1983 (Baker) and 1984 to 1999 (Chin). The current study traces manuscripts published in "Teaching Sociology" from 2000 to 2009. We examine both who publishes in the journal and what gets published. In particular,…

  12. 75 FR 43199 - Alaska Native Claims Selection

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-23

    ... approving the conveyance of surface estate for certain lands to Beaver Kwit'chin Corporation, pursuant to... Doyon, Limited when the surface estate is conveyed to Beaver Kwit'chin Corporation. The lands are in the vicinity of Beaver, Alaska, and are located in: Fairbanks Meridian, Alaska T. 16 N., R. 1 E., Secs. 1 to...

  13. A new design of CAD/CAM surgical template system for two-piece narrowing genioplasty.

    PubMed

    Li, B; Shen, S G; Yu, H; Li, J; Xia, J J; Wang, X

    2016-05-01

    The purpose of this study was to develop and validate a new chin template system for a two-piece narrowing genioplasty. Nine patients with wide chin deformities were enrolled. Surgeries were planned with the computer-aided surgical simulation (CASS) planning method. Surgical splints and chin templates were designed in a computer and fabricated using a three-dimensional printing technique. The chin template system included a cutting guide and a repositioning guide for a two-piece narrowing genioplasty. These guides were also designed to avoid the mental foramen area and inferior alveolar nerve loops during the osteotomy, for nerve protection. After surgery, the outcome evaluation was completed by first superimposing the postoperative computed tomography model onto the planned model, and then measuring the differences between the planned and actual outcomes. All surgeries were completed successfully using the chin template system. No inferior alveolar nerve damage was seen in this study. With the use of the chin templates, the largest linear root mean square deviation (RMSD) between the planned and the postoperative chin segments was 0.7mm and the largest angular RMSD was 4.5°. The results showed that the chin template system provides a reliable method of transfer for two-piece osseous narrowing genioplasty planning. PMID:26725914

  14. Oscillatory brain states interact with late cognitive components of the somatosensory evoked potential.

    PubMed

    Reinacher, Matthias; Becker, Robert; Villringer, Arno; Ritter, Petra

    2009-09-30

    The question of interaction between ongoing neuronal activity and evoked responses has been addressed for different species, sensory systems and measurement modalities. Among other findings, there is converging evidence for an interaction of occipital alpha-rhythm amplitude with the visual evoked potential. Here, we test the hypothesis that the modulatory role of an ongoing rhythm might not be confined to the visual system and the occipital alpha rhythm, but instead may be generalized to other sensory systems. Using an online EEG analysis approach, we investigated the influence of the Rolandic alpha-rhythm on the somatosensory evoked potential (SEP). We triggered vibrotactile stimulation during periods of high Rolandic alpha-rhythm amplitude. Analysis revealed significant effects of pre-stimulus Rolandic alpha amplitude on the amplitude of the N140 and P260 components of the SEP, known to be linked to cognitive processing, but not on early sensory components. The N140-P260 complex shows a different focus in topography than the early sensory components and the pre-stimulus Rolandic alpha rhythm. These results indicate an involvement of Rolandic alpha-rhythm in higher cognitive processing. In more general terms--and in the context of similar studies in the visual system--our findings suggest that modulation of late EP components by ongoing rhythms might be a characteristic and possibly universal feature of sensory systems. PMID:19589356

  15. Continuous Tracking of Behavioral Development in Infants

    ERIC Educational Resources Information Center

    Roberts, Mark; And Others

    1978-01-01

    Reports on a strategy of continuous measurement of the frequency of the same infant behavior over time, which was applied to measuring infant development in the prone position, namely, chin lifting, chest lifting, and a creeping response. (BD/BR)

  16. Genioplasty.

    PubMed

    Abadi, Mohammad; Pour, Omid Barahmand

    2015-10-01

    With increasing aesthetic awareness, in addition to the forehead, nose, and cheekbone prominence, the chin nowadays is seen as one of the most important parts of the facial skeleton. The size and location of these areas of the skeleton in relation to the skull base and their three-dimensional positional relationship to each other are essential and contribute the individuality of a human face. The position of the chin has a strong influence on the assessment of the facial harmony; its different types and forms dominate the appearance. Furthermore, the expression of the chin is equated with character traits and thus it is an important component of the profile forms. Genioplasty is a routine procedure for the correction of aesthetic and functional deformity of the chin region. It is therefore one of the contour-enhancing surgical methods. PMID:26579866

  17. Rosacea (image)

    MedlinePlus

    Rosacea is a condition where the area of the cheeks, nose, chin, forehead, or eyelids become inflamed. ... vessels, swelling, or skin eruptions similar to acne. Rosacea occurs most often in fair skinned people, particularly ...

  18. CPAP Devices for Sleep Apnea

    MedlinePlus

    ... CPAP nose masks. In this case, a full-face mask that covers both the nose and the mouth ... could help. Types of CPAP Devices Nasal pillows Face mask Face mask with chin strap Written by familydoctor. ...

  19. 29 CFR Appendix A to Subpart I of... - Non-Mandatory Guidelines for Hazard Assessment, Personal Protective Equipment (PPE) Selection...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... officer should observe: (1) Sources of motion; for example, machinery or processes where any movement of... to keep the hard hat on an employee's head. (Chin straps should break at a reasonably low force...

  20. Ian Wallace (Profile).

    ERIC Educational Resources Information Center

    Stott, Jon C.

    1989-01-01

    Interviews Canadian children's author-illustrator Ian Wallace. Discusses the development of several of Wallace's books, including "Chin Chiang and the Dragon's Dance" and "The Sparrow's Song," as well as his development as an artist. (MM)

  1. 21 CFR 878.3500 - Polytetrafluoroethylene with carbon fibers composite implant material.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ..., DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES... material intended to be implanted during surgery of the chin, jaw, nose, or bones or tissue near the eye...

  2. 1. Historic American Buildings Survey E. W. Russell, Photographer, September ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Historic American Buildings Survey E. W. Russell, Photographer, September 15, 1936 GATE IN FRONT OF 201 GOVERNMENT STREET - 201 Government Street (Iron Gate), Moved to Spring Hill Avenue & Riviere du Chin Road, Mobile, Mobile County, AL

  3. Bitter Melon

    MedlinePlus

    African Cucumber, Ampalaya, Balsam Pear, Balsam-Apple, Balsambirne, Balsamo, Bitter Apple, Bitter Cucumber, Bitter Gourd, Bittergurke, Carilla Fruit, Carilla Gourd, Cerasee, Chinli-Chih, Cundeamor, Fructus Mormordicae Grosvenori, Karavella, Kathilla, ...

  4. The role of the right hemisphere in the control of speech prosody in propositional and affective contexts.

    PubMed

    Shapiro, B E; Danly, M

    1985-05-01

    Sixteen right-handed adult males with localized insult to either the right or left hemisphere and five control subjects without brain damage read aloud target sentences embedded in paragraphs, while intoning their voices in either a declarative, interrogative, happy, or sad mode. Acoustical analysis of the speech wave was performed. Right-anterior (pre-Rolandic) and right-central (pre- and post-Rolandic) brain-damaged patients spoke with less pitch variation and restricted intonational range across emotional and nonemotional domains, while patients with right posterior (post-Rolandic) damage had exaggerated pitch variation and intonational range across both domains. No such deficits were found in patients with left posterior damage, whose prosody was similar to that of normal control subjects. It is suggested that damage to the right hemisphere alone may result in a primary disturbance of speech prosody that may be independent of the disturbances in affect often noted in right-brain-damaged populations. PMID:4027566

  5. Dynamic Opposition of Clustered Proteins Stabilizes Cortical Polarity in the C. elegans Zygote.

    PubMed

    Sailer, Anne; Anneken, Alexander; Li, Younan; Lee, Sam; Munro, Edwin

    2015-10-12

    Dynamic maintenance of cell polarity is essential for development and physiology. Here we combine experiments and modeling to elucidate mechanisms that maintain cortical polarity in the C. elegans zygote. We show that polarity is dynamically stabilized by two coupled cross-inhibitory feedback loops: one involves the oligomeric scaffold PAR-3 and the kinase PAR-1, and the other involves CDC-42 and its putative GAP CHIN-1. PAR-3 and CDC-42 are both required locally to recruit PAR-6/PKC-3, which inhibits PAR-1 (shown previously) and inhibits local growth/accumulation of CHIN-1 clusters. Conversely, PAR-1 inhibits local accumulation of PAR-3 oligomers, while CHIN-1 inhibits CDC-42 (shown previously), such that either PAR-1 or CHIN-1 can prevent recruitment of PAR-6/PKC-3, but loss of both causes complete loss of polarity. Ultrasensitive dependence of CHIN-1 cluster growth on PAR-6/PKC-3 endows this core circuit with bistable dynamics, while transport of CHIN-1 clusters by cortical flow can stabilize the AP boundary against diffusive spread of PAR-6/PKC-3. PMID:26460948

  6. Goals and Objectives of National Science Policy. Science Policy Study--Hearings Volume 1. Hearings before the Task Force on Science Policy of the Committee on Science and Technology, House of Representatives, Ninety-Ninth Congress, First Session (February 28; March 7, 21, 28; April 4, 1985). No. 46.

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Committee on Science and Technology.

    These hearings, which focused on the goals and objectives of national science policy, include discussions, questions and answers for the record, and, when applicable, prepared statements. Individuals appearing during the hearings include: (1) George C. Pimentel; (2) Alex Roland; (3) John S. Foster, Jr.; (4) James B. Wyngaarden; and (5) Lewis M.…

  7. Wallace Stevens: A Collection of Critical Essays. Twentieth Century Views Series.

    ERIC Educational Resources Information Center

    Borroff, Marie, Ed.

    One of a series of works aimed at presenting contemporary critical opinion on major authors, this collection includes essays by Marie Borroff, Wallace Stevens, Joseph N. Riddle, Hi Simons, Sister M. Bernetta Quinn, C. Roland Wagner, Harold Bloom, Ralph J. Mills, Jr., Roy Harvey Pearce, Louis L. Martz, Morton Dauwen Zabel, and Northrop Frye--all…

  8. The Myth in the Discourse.

    ERIC Educational Resources Information Center

    Breen, Myles; Corcoran, Farrel

    Reflecting the ideas of Roland Barthes, this paper examines the nature and importance of myth as a type of speech. The investigation proceeds by discussing myth from the perspectives of both traditional and contemporary disciplines, then considers the universality of myth, its religious impulse, and its functions. Using examples from television…

  9. Keys to Success

    ERIC Educational Resources Information Center

    Viadero, Debra

    2004-01-01

    This article discusses how Roland G. Tharp and his colleagues from the Center for Research on Education, Diversity, & Excellence, a federal research center at the University of California, identify methods to help "nonmainstream" pupils make academic gains. Tharp has identified five standards that he says mark effective instruction in classrooms…

  10. 78 FR 23522 - Idaho Roadless Rule

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-19

    ...Pursuant to 36 CFR 294.27 the Forest Service, U.S. Department of Agriculture (USDA), is proposing to modify Idaho Roadless Area boundaries for the Big Creek, Grandmother Mountain, Pinchot Butte, Roland Point, Wonderful Peak Idaho Roadless Areas on the Idaho Panhandle National Forests to reflect lands acquired within and/or adjacent to these roadless areas. In addition, modifications to correct......

  11. Planning and Implementing Augmentative Communication Service Delivery, 2: Proceedings of the National Planners Conference on Assistive Device Service Delivery.

    ERIC Educational Resources Information Center

    Coston, Caroline A., Ed.

    The document consists of 30 author contributed chapters concerned with augmentative communication service delivery. Chapter titles and authors are: "Communication Options for Persons Who Cannot Speak: Planning for Service Delivery" (David Beukelman); "Planning Service Delivery Systems" (Roland Hahn II); "Planning Ohio's Augmentative Communication…

  12. On Universals, Cultural Variations and Individual Uniqueness: Throwing down the Gauntlet in Giftedness Research

    ERIC Educational Resources Information Center

    Garces-Bacsal, Rhoda Myra

    2012-01-01

    Roland S. Persson's (2012a) piece is extremely comprehensive, timely and very relevant especially in light of a growing appreciation of cultural diversity and the emergence of a global community--which is an inevitable offshoot of globalisation that goes beyond world economy and international markets. It covers multiple themes; ranging from…

  13. The Time Is Ripe (Again)

    ERIC Educational Resources Information Center

    Barth, Roland S.

    2013-01-01

    "It's always been a promising time for teacher leadership. It's just never been a successful time," writes noted educator Roland Barth. Why? Barth points to five obstacles: administrator resistance, the taboo in teaching against elevating oneself higher than one's peers, the fact that teachers' plates are full, the…

  14. 76 FR 19765 - Toutant Hydropower Inc.; Notice of Application Accepted for Filing, Soliciting Comments, Motions...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-08

    ... Energy Regulatory Commission Toutant Hydropower Inc.; Notice of Application Accepted for Filing... Hydropower Inc. e. Name of Project: M.S.C. (Toutant) Hydroelectric Project. f. Location: The project is..., 16 U.S.C. 791a-825r. h. Applicant Contact: Roland Toutant, Toutant Hydropower, Inc., 80 Bungay...

  15. Philosophy, Children and Liberal Education.

    ERIC Educational Resources Information Center

    Reed, T. M.; Hanna, Patricia

    1981-01-01

    Remarks directed to Peter Augustine Lawler and an earlier article are presented. The rationale for a program of philosophy for children developed at Montclair State College is compared with Roland Garrett's conception of philosophy. Distortions in Lawler's perception of current philosophical practice and teaching are indicated. (MLW)

  16. Constructing an Ethical Writer for the Postmodern Scene.

    ERIC Educational Resources Information Center

    Hassett, Michael J.

    The advent of postmodern criticism has brought about numerous changes in the way those in the academy read and teach the reading of texts. From Michel Foucault's "What is an Author?" to Roland Barthes'"The Death of the Author" and beyond, critics and theorists have sought to decrease the author-ity of the material that is read. In doing so, these…

  17. Comet Bennett 1970 II.

    NASA Technical Reports Server (NTRS)

    Sekanina, Z.; Miller, F. D.

    1973-01-01

    The model for dust comets, formulated by Finson and Probstein, which had previously been tested only on Comet Arend-Roland 1957 III, has been successfully applied to three calibrated photographic plates of Comet Bennett. The size distribution, emission rate, and initial velocities of dust particles emitted from the comet's nucleus are given.

  18. A Path to Academic Excellence

    ERIC Educational Resources Information Center

    Grizzard, Clare; Woerner, Georgia K.

    2010-01-01

    Educators in Roland Park Elementary/Middle School in Baltimore recognize the essential role that the arts play in education. This K-8 urban public school, which serves a highly diverse population, focuses on academic excellence and high standards for students and faculty. They believe that teaching "in and through the arts" helps to achieve those…

  19. Bibliographic Annual in Speech Communication: 1974. Volume 5.

    ERIC Educational Resources Information Center

    Kennicott, Patrick C., Ed.

    This annotated bibliography is an annual volume devoted to maintaining a record of graduate work in speech communication, providing abstracts of doctoral dissertations, and making subject area bibliographies available. The contents of this volume include "Studies in Mass Communication: A Selected Bibliography, 1973" by Roland C. Johnson and…

  20. 76 FR 63677 - Excepted Service

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-13

    ... Federal Register at http://www.gpoaccess.gov/fr/ . A consolidated listing of all authorities as of June 30... MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM). ACTION: Notice. SUMMARY: This... excepted service as required by 5 CFR 213.103. FOR FURTHER INFORMATION CONTACT: Roland Edwards,...

  1. 75 FR 67408 - Excepted Service

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-02

    ....gpoaccess.gov/fr/ . A consolidated listing of all authorities as of June 30 is also published each year. The... MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM). ACTION: Notice. SUMMARY: This... excepted service as required by 5 CFR 213.103. FOR FURTHER INFORMATION CONTACT: Roland Edwards,...

  2. 76 FR 31644 - Excepted Service

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-01

    ... MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM). ACTION: Notice. SUMMARY: This... excepted service as required by 5 CFR 213.103. FOR FURTHER INFORMATION CONTACT: Roland Edwards, Senior.../2011 Secretary. Projects. Farm Service Agency... Special Assistant.... DA110042 3/24/2011 Department...

  3. 75 FR 35095 - Excepted Service

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    2010-06-21

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    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-10

    ....gpoaccess.gov/fr/ . A consolidated listing of all authorities as of June 30 is also published each year. The... MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM). ACTION: Notice. SUMMARY: This... excepted service as required by 5 CFR 213.103. FOR FURTHER INFORMATION CONTACT: Roland Edwards,...

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    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-27

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    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-20

    ....gpoaccess.gov/fr/ fr/. A consolidated listing of all authorities as of June 30 is also published each year... MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM). ACTION: Notice. SUMMARY: This... excepted service as required by 5 CFR 213.103. FOR FURTHER INFORMATION CONTACT: Roland Edwards,...

  7. 76 FR 38709 - Excepted Service

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-01

    ... MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM). ACTION: Notice. SUMMARY: This... excepted service as required by 5 CFR 213.103. FOR FURTHER INFORMATION CONTACT: Roland Edwards, Senior.......... DA110040 4/4/2011 Secretary Farm and Foreign Agricultural Service. Rural Utilities Senior...

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    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-18

    ....gpoaccess.gov/fr/ . A consolidated listing of all authorities as of June 30 is also published each year. The... MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM). ACTION: Notice. SUMMARY: This... excepted service as required by 5 CFR 213.103. FOR FURTHER INFORMATION CONTACT: Roland Edwards,...

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    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-24

    ....gpoaccess.gov/fr/ . A consolidated listing of all authorities as of June 30 is also published each year. The... MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM). ACTION: Notice. SUMMARY: This... excepted service as required by 5 CFR 213.103. FOR FURTHER INFORMATION CONTACT: Roland Edwards,...

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    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

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    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-25

    ....gpoaccess.gov/ fr/. A consolidated listing of all authorities as of June 30 is also published each year. The... MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM). ACTION: Notice. SUMMARY: This... excepted service as required by 5 CFR 213.103. FOR FURTHER INFORMATION CONTACT: Roland Edwards,...

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    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-17

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    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-25

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    2011-12-16

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    2010-05-03

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  20. 75 FR 47031 - Excepted Service

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-04

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  1. Discovery of the Self through the Writing Process: Autobiography as a Heuristic of Identity.

    ERIC Educational Resources Information Center

    Pitts, Mary Ellen

    Although the recent thrust toward writing as interaction with a text has led to de-emphasis of personal-experience writing per se, autobiography, if approached in the context of textuality (in Roland Barthes's sense), can provide a model for writing as a means of discovering one's identity--of interacting with life as text and with the written…

  2. No Such Thing as a Consensus: Olive Banks and the Sociology of Education

    ERIC Educational Resources Information Center

    Delamont, Sara

    2008-01-01

    The title of this article comes from the editorial written for this journal by Olive Banks, Len Barton, Roger Dale, David Hargreaves, Roland Meighan, Ivan Reid and Graham Vulliamy (Banks et al. 1980, 4) that appeared in its first issue, and set out its remit. The seven scholars who wrote that editorial pledged to "publish high quality work of any…

  3. The Aims of Education and the Leap of Freedom

    ERIC Educational Resources Information Center

    Yun, SunInn

    2014-01-01

    This paper considers the place of freedom in discussions of the aims of education. Bearing in mind remarks of R.S. Peters to the affect that the singling out of aims can "fall into the hands of rationalistically minded curriculum planners", it begins by considering the views of Roland Reichenbach regarding Bildung and his account of this…

  4. Some Thoughts on "Cultural Variation and Dominance in a Globalised Knowledge-Economy"

    ERIC Educational Resources Information Center

    Yang, Yang; Gentry, Marcia

    2012-01-01

    To view giftedness research in a global context is an important and desirable attempt. Roland S. Persson (2012a), in the target article entitled Cultural Variation and Dominance in a Globalised Knowledge-Economy: Towards a Cultural-Sensitive Research Paradigm in the Science of Giftedness, delivers thought-provoking views in the cultural influences…

  5. The Proper Place of Theory in Educational History?

    ERIC Educational Resources Information Center

    Urban, Wayne J.

    2011-01-01

    In this article, the author talks about the proper place of theory in educational history and shares his comments on the essays by Eileen Tamura, Carolyn Eick, and Roland Coloma. Eileen Tamura's positing of most educational historians as practitioners of narrative history is surely on the mark. She invites historians of education to investigate…

  6. A Catalyst for Charting a Path to Research Validity in the Field of Gifted Education

    ERIC Educational Resources Information Center

    Sisk, Dorothy A.

    2012-01-01

    Roland S. Persson's (2012a) article addresses a concern that many educators have stressed in their theoretical models, namely the importance of the interaction between the individual and the environment, and the impact of culture on not only values and beliefs, but on behaviour. As Persson (2012a) points out these models all have merit, but he…

  7. European Consciousness: Towards Defining a Complex Concept and Its Educational Significance (Europaisches Bewusstsein: Zur Definition Eines Vielschichtigen Begriffes und Seiner Bildungstheoretischen Bedeutung)

    ERIC Educational Resources Information Center

    Jobst, Solvejg

    2005-01-01

    The present study aims at a definition of "European consciousness". In particular, it draws on Henri Tajfel's theory of social identity as well as Roland Wakenhut's and Jutta Gallenmuller's moral determination of national consciousness. European consciousness is then defined as a sense of belonging which, depending on certain identification…

  8. No Child Left Behind and the Spectacle of Failing Schools: The Mythology of Contemporary School Reform

    ERIC Educational Resources Information Center

    Granger, David A.

    2008-01-01

    This article discusses what David Berliner (2005) has called the perverse "spectacle of fear" (208) surrounding issues of teacher quality and accountability in contemporary school reform. Drawing principally on the critical semiotics of Roland Barthes' essay, "The World of Wrestling" (1957), it examines the way that this spectacle works to…

  9. What's Foucault Got to Do with It? History, Theory, and Becoming Subjected

    ERIC Educational Resources Information Center

    Butchart, Ronald E.

    2011-01-01

    The three essays that make up this issue on theory in educational history by Eileen Tamura, Caroline Eick, and Roland Sintos Coloma constitute an indictment of the field of the history of education for its neglect of theory. Read linearly, from the Introduction through Coloma, the indictment becomes increasingly strident, moving from a gentle call…

  10. 41 CFR 50-201.2 - Administration of the Act.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 10 of the Portal-to-Portal Act of 1947 (61 Stat. 84, 29 U.S.C. 251, et seq., discussed in 29 CFR part.... (“Skidmore v. Swift & Co.”, 323 U.S. 134 (1944), “Roland Co. v. Walling”, 326 U.S. 657 (1946);...

  11. 41 CFR 50-201.2 - Administration of the Act.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 10 of the Portal-to-Portal Act of 1947 (61 Stat. 84, 29 U.S.C. 251, et seq., discussed in 29 CFR part.... (“Skidmore v. Swift & Co.”, 323 U.S. 134 (1944), “Roland Co. v. Walling”, 326 U.S. 657 (1946);...

  12. 41 CFR 50-201.2 - Administration of the Act.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 10 of the Portal-to-Portal Act of 1947 (61 Stat. 84, 29 U.S.C. 251, et seq., discussed in 29 CFR part.... (“Skidmore v. Swift & Co.”, 323 U.S. 134 (1944), “Roland Co. v. Walling”, 326 U.S. 657 (1946);...

  13. 29 CFR 4.101 - Official rulings and interpretations in this subpart.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... incorrect. See for example, Skidmore v. Swift & Co., 323 U.S. 134 (1944); Roland Co. v. Walling, 326 U.S... responsibilities of administration and enforcement (Skidmore v. Swift & Co., 323 U.S. 134 (1944)). In order that... informed judgment to which courts and litigants may properly resort for guidance” (Skidmore v. Swift &...

  14. 41 CFR 50-201.2 - Administration of the Act.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 10 of the Portal-to-Portal Act of 1947 (61 Stat. 84, 29 U.S.C. 251, et seq., discussed in 29 CFR part.... (“Skidmore v. Swift & Co.”, 323 U.S. 134 (1944), “Roland Co. v. Walling”, 326 U.S. 657 (1946);...

  15. 29 CFR 4.101 - Official rulings and interpretations in this subpart.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... incorrect. See for example, Skidmore v. Swift & Co., 323 U.S. 134 (1944); Roland Co. v. Walling, 326 U.S... responsibilities of administration and enforcement (Skidmore v. Swift & Co., 323 U.S. 134 (1944)). In order that... informed judgment to which courts and litigants may properly resort for guidance” (Skidmore v. Swift &...

  16. 41 CFR 50-201.2 - Administration of the Act.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 10 of the Portal-to-Portal Act of 1947 (61 Stat. 84, 29 U.S.C. 251, et seq., discussed in 29 CFR part.... (“Skidmore v. Swift & Co.”, 323 U.S. 134 (1944), “Roland Co. v. Walling”, 326 U.S. 657 (1946);...

  17. 29 CFR 4.101 - Official rulings and interpretations in this subpart.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... incorrect. See for example, Skidmore v. Swift & Co., 323 U.S. 134 (1944); Roland Co. v. Walling, 326 U.S... responsibilities of administration and enforcement (Skidmore v. Swift & Co., 323 U.S. 134 (1944)). In order that... informed judgment to which courts and litigants may properly resort for guidance” (Skidmore v. Swift &...

  18. 29 CFR 4.101 - Official rulings and interpretations in this subpart.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... incorrect. See for example, Skidmore v. Swift & Co., 323 U.S. 134 (1944); Roland Co. v. Walling, 326 U.S... responsibilities of administration and enforcement (Skidmore v. Swift & Co., 323 U.S. 134 (1944)). In order that... informed judgment to which courts and litigants may properly resort for guidance” (Skidmore v. Swift &...

  19. Literary Theory and the Notion of Difficulty. Report Series 4.7.

    ERIC Educational Resources Information Center

    Touponce, William

    The works of French literary theorists Jacques Lacan, Jacques Derrida, and Roland Barthes reflect a view of the text as the primary object of investigation for any discipline in the human sciences. Each of the three has been involved with pedagogical reforms within French cultural institutions: Derrida with the teaching of philosophy, Lacan with…

  20. Black Superintendents of Selected American Cities.

    ERIC Educational Resources Information Center

    Negro History Bulletin, 1980

    1980-01-01

    Presents photographs of 12 Black superintendents of urban school districts. They are: J. Jerome Harris, Ronald Lewis, Willie W. Herenton, Robert R. Wheeler, Alonzo A. Crim, Roland N. Patterson, Jean Franklin Emmons, Charles R. Thomas, Richard C. Hunter, Arthur Jefferson, Ulysses Byas, and Howard E. White, Sr. (GC)

  1. The Debate on Dominant Culture and Cultural Imperialism

    ERIC Educational Resources Information Center

    Anchan, John P.

    2012-01-01

    In this commentary, the author reviews in depth Roland S. Persson's (2012a) target article. According to him Persson (2012a) presents a convincing argument as he wove through examples and explanations. The idea of superculture connects well with the established neocolonial literature and the North-South/Centre-Periphery debate. From general to…

  2. The Role of the State and the Social Partners: Mechanisms and Spheres of Influence.

    ERIC Educational Resources Information Center

    Vocational Training, 1992

    1992-01-01

    This serial issue is devoted to clarifying the attitudes of the various parties or "social partners" to vocational training in the Member States of the European Community. Following an editorial introducing the topic are these articles: "The Community Social Dialogue" (Roland Tavitian); "From the Market Jungle to the Social Dialogue: Vocational…

  3. Expression of Self-Concept and Adjustment against Repeated Aggressions: The Case of a Longitudinal Study on School Bullying

    ERIC Educational Resources Information Center

    Houbre, Barbara; Tarquinio, Cyril; Lanfranchi, Jean-Baptiste

    2010-01-01

    Bullying between students in the school setting is an increasing problem. Bullying can be defined as any form of repeated mental or physical violence carried out by one or several individuals on a person who is not capable of defending himself (Roland and Idsoe, "Aggress Behav" 27:446-462, 2001). The aim of this paper is to observe the expression…

  4. Educational Studies of Cosmic Rays with a Telescope of Geiger-Muller Counters

    ERIC Educational Resources Information Center

    Wibig, T.; Kolodziejczak, K.; Pierzynski, R.; Sobczak, R.

    2006-01-01

    A group of high school students (XII Liceum) in the framework of the Roland Maze Project has built a compact telescope of three Geiger-Muller counters. The connection between the telescope and a PC computer was also created and programmed by students involved in the Project. This has allowed students to use their equipment to perform serious…

  5. Benign Childhood Focal Epilepsies: Assessment of Established and Newly Recognized Syndromes

    ERIC Educational Resources Information Center

    Panayiotopoulos, Chrysostomos P.; Michael, Michael; Sanders, Sue; Valeta, Thalia; Koutroumanidis, Michael

    2008-01-01

    A big advance in epileptology has been the recognition of syndromes with distinct aetiology, clinical and EEG features, treatment and prognosis. A prime and common example of this is rolandic epilepsy that is well known by the general paediatricians for over 50 years, thus allowing a precise diagnosis that predicts an excellent prognosis. However,…

  6. 1967: The Birth of "The Death of the Author"

    ERIC Educational Resources Information Center

    Logie, John

    2013-01-01

    Roland Barthes's "The Death of the Author" is a foundational text for scholars who are addressing questions of authorship and textual ownership in English studies and its neighboring disciplines. Barthes's essay is typically presented without significant attention to the circumstances and context surrounding its initial English publication in 1967…

  7. Empire: An Analytical Category for Educational Research

    ERIC Educational Resources Information Center

    Coloma, Roland Sintos

    2013-01-01

    In this article Roland Sintos Coloma argues for the relevance of empire as an analytical category in educational research. He points out the silence in mainstream studies of education on the subject of empire, the various interpretive approaches to deploying empire as an analytic, and the importance of indigeneity in research on empire and…

  8. The Scenic Route Is Not Always the Most Informative

    ERIC Educational Resources Information Center

    Freeman, Joan

    2012-01-01

    Roland S. Persson's (2012a) argument is that there is a dominant research culture in the field of gifts and talents, which must of necessity distort research and practice in cultures which are different. He ties this to the dominance of the global economy and points to the need for more cross-cultural studies. In this commentary, the author points…

  9. Recombinant chimeric Japanese encephalitis virus/tick-borne encephalitis virus is attenuated and protective in mice.

    PubMed

    Wang, Hong-Jiang; Li, Xiao-Feng; Ye, Qing; Li, Shi-Hua; Deng, Yong-Qiang; Zhao, Hui; Xu, Yan-Peng; Ma, Jie; Qin, E-De; Qin, Cheng-Feng

    2014-02-12

    Tick-borne encephalitis virus (TBEV) represents one of the most dangerous human pathogens circulating in Europe and East Asia. No effective treatment for TBEV infection currently exists, and vaccination is the primary preventive measure. Although several inactivated vaccines have been licensed, the development of novel vaccines against TBEV remains a high priority in disease-endemic countries. In the present study, a live chimeric recombinant TBEV (ChinTBEV) was created by substituting the major structural genes of TBEV for the corresponding regions of Japanese encephalitis virus (JEV) live vaccine strain SA14-14-2. The resulting chimera had a small-plaque phenotype, replicated efficiently in both mammalian and mosquito cells. The preliminary data from in vitro passaging indicated the potential for stability of ChinTBEV. ChinTBEV also exhibited significantly attenuated neuroinvasiveness in mice upon either intraperitoneal or subcutaneous inoculation in comparison with its parental TBEV. Importantly, a single immunisation with ChinTBEV elicited TBEV-specific IgG and neutralising antibody responses in a dose-dependent manner, providing significant protection against lethal TBEV challenge in mice. Taken together, the results of this proof-of-concept study indicate that ChinTBEV can be further developed as a potential vaccine candidate against TBEV infection. Moreover, the construction of this type of flavivirus chimera using a JEV vaccine strain as the genetic backbone represents a universal vaccine approach. PMID:24394443

  10. Osseous genioplasty in conjunction with bimaxillary orthognathic surgery: a review of 262 consecutive cases.

    PubMed

    Posnick, J C; Choi, E; Chang, R P

    2016-07-01

    The purpose of this study was to evaluate the results of osseous genioplasty with bimaxillary orthognathic surgery. A retrospective consecutive case series of patients treated by a single surgeon between 2004 and 2013 was studied. All underwent Le Fort I, sagittal ramus osteotomies, septoplasty, inferior turbinate reduction, and osseous genioplasty. The outcome variables included the presenting chin dysmorphology, complications, and assessment of morphologic change. A Steiner analysis was completed for each subject's interval cephalogram. Two hundred sixty-two subjects met the inclusion criteria. Their mean age at operation was 25 (range 13-63) years. Chin osteotomy complications included one wound infection (0.4%), and two of the 1572 mandibular anterior teeth at risk sustained a pulpal injury. None of the subjects required revision. For subjects undergoing chin advancement, the mean change was +3.5 (range +3 to +6) mm. A majority also underwent counterclockwise rotation of the mandible (62%). For those undergoing chin lengthening, the mean change was +5 (range +3 to +12mm) mm, and for those undergoing vertical shortening, the mean change was -3.5 (range -3 to -7) mm. Osseous genioplasty is confirmed to be a safe method to reshape the chin. When osseous genioplasty is performed in conjunction with bimaxillary orthognathic surgery, only a modest horizontal change is required to achieve the preferred pogonion projection. PMID:26972157

  11. Gradient Symplectic Algorithms for Solving Quantum Dynamical Problems

    NASA Astrophysics Data System (ADS)

    Chin, Siu A.; Chen, C. R.; Auer, J.; Krotscheck, E.

    2002-03-01

    Recent advances[1] in factorizing the classical and quantum evolution operator to fourth order with purely positive coefficients have produce a new class of Monte Carlo[2,3] and quantum dynamical algorithms[4,5] that are at least two orders of magnitude better than existing algorithms of comparble order. This talk will focus on solving the Schrodinger equation in real and imaginary time for the extraction of dynamical information and for the determination of eigenvalue-function pairs from large 3-D grids. References: [1]S. A. Chin, ``Symplectic Integrators From Composite Operator Factorizations" Phys. Lett. A226, 344 (1997). [2]H. A. Forbert and S. A. Chin ``Fourth-order algorithms for solving the multivariable Langevin equation and the Kramers equation", Phys. Rev. E63, 016703 (2001). [3]H. A. Forbert and S. A. Chin, ``Fourth-order diffusion Monte Carlo algorithms for solving quantum many-body problems", Phys. Rev. B63, 144518 (2001). [4]S. A. Chin and C. R. Chen, ``Fourth order gradient symplectic integrator methods for solving the time-dependent Schrodinger equation", J. Chem. Phys. 114, 7338 (2001). [5]J. Auer, E. Krotscheck, and S. A. Chin, ``A fourth-order real-space algorithm for solving local Schrodinger equations", J. Chem. Phys. 115, 6841 (2001).

  12. Common Errors in Digital Panoramic Radiographs of Patients with Mixed Dentition and Patients with Permanent Dentition

    PubMed Central

    Peretz, Benjamin; Gotler, Maya; Kaffe, Israel

    2012-01-01

    Purpose. To compare errors in digital panoramic radiographs of permanent and mixed dentitions. Methods. 143 and 146 digital radiographs of mixed and permanent dentitions were examined. Results. Significantly fewer errors presented in the mixed dentition. Positioning too forward significantly prevalent in the mixed dentition; slumped position and nonpositioning of chin properly were significantly prevailed in the permanent dentition. Blurred or shortened upper incisors were significantly more prevalent in the mixed dentition. Diagnostic ability could be improved by manipulating the brightness or contrast in nearly 45% of all radiographs. In the mixed dentition, tilting the chin down and a slumped position made the lower incisors significantly nondiagnostic. In the permanent dentition, tilting the chin down made the lower incisors to be significantly nondiagnostic. Conclusions. More errors were prevalent in panoramic radiographs of permanent dentitions. Properly positioning the patient is the most important factor in preventing a cascade of errors. PMID:22505905

  13. Augmentation mentoplasty using Mersilene mesh.

    PubMed

    McCollough, E G; Hom, D B; Weigel, M T; Anderson, J R

    1990-10-01

    Many different materials are available for augmentation mentoplasty. However, the optimal implant material for chin implantation has yet to be found. During the past several years, a number of experienced surgeons have turned to the use of Mersilene mesh. Mersilene mesh is a non-absorbable Dacron polyester fiber that can be conformed easily into layers to achieve tailored dimensions and shape. At the McCollough Plastic Surgery Clinic PA, Birmingham, Ala, 277 patients over a 10-year period underwent chin augmentation with Mersilene mesh implants. The material provides excellent tensile strength, durability, and surgical adaptability. The overall complication rate was 3.2% (nine patients); infection rate, 2.5% (seven patients); and removal secondary to infection, 1.7% (five patients). Based on this 10-year experience, Mersilene mesh remains our material of choice for chin augmentation. PMID:2206500

  14. A Chimeric Dengue Virus Vaccine using Japanese Encephalitis Virus Vaccine Strain SA14-14-2 as Backbone Is Immunogenic and Protective against Either Parental Virus in Mice and Nonhuman Primates

    PubMed Central

    Li, Xiao-Feng; Deng, Yong-Qiang; Yang, Hui-Qiang; Zhao, Hui; Jiang, Tao; Yu, Xue-Dong; Li, Shi-Hua; Ye, Qing; Zhu, Shun-Ya; Wang, Hong-Jiang; Zhang, Yu; Ma, Jie; Yu, Yong-Xin; Liu, Zhong-Yu; Qin, E-De; Shi, Pei-Yong

    2013-01-01

    The development of a safe and efficient dengue vaccine represents a global challenge in public health. Chimeric dengue viruses (DENV) based on an attenuated flavivirus have been well developed as vaccine candidates by using reverse genetics. In this study, based on the full-length infectious cDNA clone of the well-known Japanese encephalitis virus live vaccine strain SA14-14-2 as a backbone, a novel chimeric dengue virus (named ChinDENV) was rationally designed and constructed by replacement with the premembrane and envelope genes of dengue 2 virus. The recovered chimeric virus showed growth and plaque properties similar to those of the parental DENV in mammalian and mosquito cells. ChinDENV was highly attenuated in mice, and no viremia was induced in rhesus monkeys upon subcutaneous inoculation. ChinDENV retained its genetic stability and attenuation phenotype after serial 15 passages in cultured cells. A single immunization with various doses of ChinDENV elicited strong neutralizing antibodies in a dose-dependent manner. When vaccinated monkeys were challenged with wild-type DENV, all animals except one that received the lower dose were protected against the development of viremia. Furthermore, immunization with ChinDENV conferred efficient cross protection against lethal JEV challenge in mice in association with robust cellular immunity induced by the replicating nonstructural proteins. Taken together, the results of this preclinical study well demonstrate the great potential of ChinDENV for further development as a dengue vaccine candidate, and this kind of chimeric flavivirus based on JE vaccine virus represents a powerful tool to deliver foreign antigens. PMID:24109223

  15. Cone-Beam Computed Tomography Assessment of Lower Facial Asymmetry in Unilateral Cleft Lip and Palate and Non-Cleft Patients with Class III Skeletal Relationship

    PubMed Central

    Lin, Yifan; Chen, Gui; Fu, Zhen; Ma, Lian; Li, Weiran

    2015-01-01

    Introduction To evaluate, using cone-beam computed tomography (CBCT), both the condylar-fossa relationships and the mandibular and condylar asymmetries between unilateral cleft lip and palate (UCLP) patients and non-cleft patients with class III skeletal relationship, and to investigate the factors of asymmetry contributing to chin deviation. Methods The UCLP and non-cleft groups consisted of 30 and 40 subjects, respectively, in mixed dentition with class III skeletal relationships. Condylar-fossa relationships and the dimensional and positional asymmetries of the condyles and mandibles were examined using CBCT. Intra-group differences were compared between two sides in both groups using a paired t-test. Furthermore, correlations between each measurement and chin deviation were assessed. Results It was observed that 90% of UCLP and 67.5% of non-cleft subjects had both condyles centered, and no significant asymmetry was found. The axial angle and the condylar center distances to the midsagittal plane were significantly greater on the cleft side than on the non-cleft side (P=0.001 and P=0.028, respectively) and were positively correlated with chin deviation in the UCLP group. Except for a larger gonial angle on the cleft side, the two groups presented with consistent asymmetries showing shorter mandibular bodies and total mandibular lengths on the cleft (deviated) side. The average chin deviation was 1.63 mm to the cleft side, and the average absolute chin deviation was significantly greater in the UCLP group than in the non-cleft group (P=0.037). Conclusion Compared with non-cleft subjects with similar class III skeletal relationships, the subjects with UCLP showed more severe lower facial asymmetry. The subjects with UCLP presented with more asymmetrical positions and rotations of the condyles on axial slices, which were positively correlated with chin deviation. PMID:26237311

  16. Efficient quantum secret sharing scheme with two-particle entangled states

    NASA Astrophysics Data System (ADS)

    Zhu, Zhen-Chao; Zhang, Yu-Qing; Fu, An-Min

    2011-04-01

    This paper proposes a protocol for multi-party quantum secret sharing utilizing four non-orthogonal two-particle entangled states following some ideas in the schemes proposed by Liu et al. (2006 Chin. Phys. Lett. 23 3148) and Zhang et al. (2009 Chin. Phys. B 18 2149) respectively. The theoretical efficiency for qubits of the new protocol is improved from 50% to approaching 100%. All the entangled states can be used for generating the private key except those used for the eavesdropping check. The validity of a probable attack called opaque cheat attack to this kind of protocols is considered in the paper for the first time.

  17. Pedagogy Journal, 1996.

    ERIC Educational Resources Information Center

    Marashio Paul, Ed.; And Others

    1996-01-01

    This annual serial volume contains 19 articles offering practical pedagogical ideas from faculty at New Hampshire technical colleges. The following articles are presented: (1) "Goodbye Mr. Desrochers or What I Learned While Teaching My First Lit. Course," by Diane Chin; (2) "A Teacher Learns: Building a Fly Rod," by Walter Ryan; (3) "A Teacher in…

  18. English Teaching & Learning, 2002-2003.

    ERIC Educational Resources Information Center

    English Teaching & Learning, 2003

    2003-01-01

    These four issues contain the following articles: "A Case Documentation of English Instruction at the Elementary School Level: The Cross-Cultural Impact of Native Speaker Teachers" (Hsien-Chin Liou) [written in Chinese]; "A Collaborative Tale with Two Taiwanese EFL College Groups" (Feng-Ming Chi); "A Developmental Study on Phonological Awareness…

  19. Identification of Physically Underdeveloped Pupils: Activities to Improve Their Performance.

    ERIC Educational Resources Information Center

    President's Council on Physical Fitness and Sports, Washington, DC.

    Screening tests consisting of observation procedures and simple physical exercises requiring only a chinning bar, stopwatch, and record forms are suggested for identifying pupils aged ten to seventeen who are underdeveloped in strength, flexibility, agility, or cardiorespiratory endurance. Classes should be divided into pairs with one pupil acting…

  20. Descriptions of four species of grenadier fishes of the genera Hymenocephalus and Hymenogadus (Teleostei, Gadiformes, Macrouridae) from the New Zealand region and Tasman Sea, including two new species of Hymenocephalus.

    PubMed

    McMillan, Peter; Iwamoto, Tomio

    2014-01-01

    Two new species of Hymenocephalus are described from the New Zealand region and Tasman Sea. Hymenocephalus fuscus sp. n. has 11-12 pelvic fin rays, is darkly pigmented, with enlarged bony ridges on the dorsal aspects of head, lacks a chin barbel, has few (16-19) gill rakers on inner side of first arch and is similar to other species in the H. aterrimus species group. Hymenocephalus maculicaudus sp. n. has 8 pelvic fin rays, a mid-lateral line of melanophores on body and tail that extends about a head length posterior to anal fin origin, a short (7-16 % HL) chin barbel and is similar to other species in the H. megalops species group. Hymenocephalus nascens has 12-14 pelvic fin rays, lacks a chin barbel, has a mid-lateral stripe of silvery (fresh) or brownish (preserved) pigment running along trunk and tail. Hymenogadus gracilis has a serrated (weak, near tip) first dorsal fin spine, 7-9 pelvic fin rays, long (20-30% HL) chin barbel, and one row of enlarged melanophores along lateral mid-line of the tail. Hymenocephalus nascens and Hymenogadus gracilis are recorded for the first time from the New Zealand region. A key to the known New Zealand species of Hymenocephalus and Hymenogadus is provided.  PMID:25284648

  1. Dermatitis artefacta in a 12-year-old girl mimicking cutaneous T-cell lymphoma.

    PubMed

    Angus, Janet; Affleck, Andrew G; Croft, Jane C Ravens; Leach, Iain H; Slater, David N; Millard, Leslie G

    2007-01-01

    Dermatitis artefacta or factitious disease may be unrecognized in children. We present a 12-year-old girl who had an unusual facial lesion on the chin, which was self-inflicted but histologically mimicked cutaneous T-cell lymphoma. Our report emphasizes both the potential diagnostic pitfalls and the importance of clinicopathologic correlation. PMID:17542895

  2. Are We Ready to #MeetTheMoment?

    ERIC Educational Resources Information Center

    Chin, Maisie

    2015-01-01

    CADRE, an organization led by Maisie Chin, is a Human Right to Education Campaign. Between 2005 and 2013, CADRE played a lead role in using grassroots organizing and leadership development to create a seismic shift in public policy, debate, and narrative around school discipline, racial disparities, parents' roles, school climate, and closing the…

  3. Babesia sp. in Colombian bats (Microchiroptera).

    PubMed

    Marinkelle, C J

    1996-07-01

    Two leaf-chinned bats (Mormoops megalophylla) collected in 1963 in central Colombia were heavily infected with Babesia sp., probably Babesia vesperuginis. Both bats had pronounced splenomegaly. This is the first report of a Babesia sp. infection of a bat in the Americas. PMID:8827683

  4. Tracking Speech Sound Acquisition

    ERIC Educational Resources Information Center

    Powell, Thomas W.

    2011-01-01

    This article describes a procedure to aid in the clinical appraisal of child speech. The approach, based on the work by Dinnsen, Chin, Elbert, and Powell (1990; Some constraints on functionally disordered phonologies: Phonetic inventories and phonotactics. "Journal of Speech and Hearing Research", 33, 28-37), uses a railway idiom to track gains in…

  5. Identification of wheat-Thinopyrum intermedium alien disomic addition lines conferring resistance to stripe rust

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Thinopyrum intermedium carries many useful traits for wheat genetic improvement. To identify genes conferring resistance to stripe rust caused by Puccinia striiformis f. sp. tritici in Zhong 4 (Z4) derived from a cross between common wheat and Th. intermedium, a cross was made between Z4 and a ‘Chin...

  6. ALTERATION OF CARDIAC ELECTRICAL ACTIVITY BY WATER-LEACHABLE COMPONENTS OF RESIDUAL OIL FLY ASH (ROFA)

    EPA Science Inventory

    Alteration of cardiac electrical activity by water-leachable components
    of residual oil fly ash (ROFA)

    Desuo Wang, Yuh-Chin T. Huang*, An Xie, Ting Wang

    *Human Studies Division, NHEERL, US EPA
    104 Mason Farm Road, Chapel Hill, NC 27599
    Department of Basic ...

  7. High-Resolution Global Modeling of the Effects of Subgrid-Scale Clouds and Turbulence on Precipitating Cloud Systems

    SciTech Connect

    Bogenschutz, Peter; Moeng, Chin-Hoh

    2015-10-13

    The PI’s at the National Center for Atmospheric Research (NCAR), Chin-Hoh Moeng and Peter Bogenschutz, have primarily focused their time on the implementation of the Simplified-Higher Order Turbulence Closure (SHOC; Bogenschutz and Krueger 2013) to the Multi-scale Modeling Framework (MMF) global model and testing of SHOC on deep convective cloud regimes.

  8. An Emergent Curriculum in China: Collaborative Tolerance

    ERIC Educational Resources Information Center

    Farrell, Lynn

    2004-01-01

    The concept for the piloting of a contemporary early childhood kindergarten in China was visualised by the chief executive officer of TMC Academy, Dr Chin, in July 2002 when he participated in a Singaporean-led mission to Liaoning Province in China. Shenyang Creative Kindergarten is the result of that concept. It opened for children in September…

  9. Fundreds in Arkansas: An Interdisciplinary Collaboration

    ERIC Educational Resources Information Center

    La Porte, Angela M.

    2010-01-01

    This article discusses Fundreds in Arkansas, an interactive cooperative in Arkansas to promote and support Mel Chin's nationwide interdisciplinary artwork, Operation Paydirt (The Fundred Dollar Bill Project). The artwork involves communities and educational institutions across the country, healthcare professionals, engineers, urban planners, and…

  10. Revisiting the Authoritative-Dialogic Tension in Inquiry-Based Elementary Science Teacher Questioning

    ERIC Educational Resources Information Center

    Van Booven, Christopher D.

    2015-01-01

    Building on the "questioning-based discourse analytical" framework developed by Singapore-based science educator and discourse analyst, Christine Chin, this study investigated the extent to which fifth-grade science teachers' use of questions with either an authoritative or dialogic orientation differentially restricted or expanded the…

  11. Factor Structure of the Multidimensional Orientation toward Dying and Death Inventory among Hong Kong College Students: A Preliminary Study

    ERIC Educational Resources Information Center

    Wittkowski, Joachim; Ho, Samuel M. Y.; Chan, Wallace C. H.

    2011-01-01

    This study examines the factor structures of the Chinese version of the Multidimensional Orientation Toward Dying and Death Inventory (MODDI-F/chin), originally established in German language, in a sample of Hong Kong college students (n = 256). Both confirmatory factor analysis and exploratory factor analysis were performed to examine the factor…

  12. Comment on 'Quantum teleportation of an arbitrary two-qubit state and its relation to multipartite entanglement'

    SciTech Connect

    Deng Fuguo

    2005-09-15

    The multipartite state in the Rigolin's protocol [Phys. Rev. A 71, 032303 (2005)] for teleporting an arbitrary two-qubit state is just a product state of N Einstein-Podolsky-Rosen pairs in essence, not a genuine multipartite entangled state, and this protocol in principle is equivalent to the Yang-Guo protocol [Chin. Phys. Lett. 17, 162 (2000)].

  13. Comparison of gene expression profiles in cultivated peanut (Arachis hypogaea) under strong artificial selection

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Over the past five decades, cultivated peanut in China has been subjected to strong artificial selection in breeding programs. To investigate the impact of artificial selection on expression diversity, we compared gene expression profiles in pod and leaf of five widespread cultivars in Southern Chin...

  14. Gradient Shifts with Naturally Occurring Human Face Stimuli

    ERIC Educational Resources Information Center

    Derenne, Adam; Breitstein, R. Michael

    2006-01-01

    The present research examined stimulus generalization and gradient shifts on a dimension involving human faces. Twenty undergraduates were instructed to examine the proportion of the total face length that lay between the tip of the nose and the end of the chin. The face stimuli were images of actual people shown on a computer screen; no face was…

  15. Investigation of Primary Students' Motivation Levels towards Science Learning

    ERIC Educational Resources Information Center

    Sevinc, Betul; Ozmen, Haluk; Yigit, Nevzat

    2011-01-01

    The present research was conducted with 518 students enrolled at the 6th, 7th and 8th classes of primary schools. A likert-type scale developed by Tuan, Chin and Shieh (2005) and translated into Turkish by Yilmaz and Cavas (2007) was used to examine the motivation levels of students towards science learning. Research findings revealed that gender,…

  16. Lightweight Helmet For Eye/Balance Studies

    NASA Technical Reports Server (NTRS)

    Mcstravick, M. Catherine; Proctor, David R.; Wood, Scott J.

    1988-01-01

    Lightweight helmet serves as mounting platform for stimulus and sensor modules in experiments on role of vestibulo-ocular reflex in motion sickness and space-adaptation syndrome. Fitted liner and five inflatable air bladders stabilize helmet with respect to subject's head. Personal bite board attached to chin-bar assembly makes hard palate in subject's mouth serve as final position reference for helmet.

  17. 42 CFR 84.110 - Gas masks; description.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... as follows: (1) Front-mounted or back-mounted gas mask. A gas mask which consists of a full facepiece.... (2) Chin-style gas mask. A gas mask which consists of a full facepiece, a canister which is usually attached to the facepiece, and associated connections. (3) Escape gas mask. A gas mask designed for...

  18. Studies Presented to Robert B. Lees by His Students. Papers in Linguistics.

    ERIC Educational Resources Information Center

    Sadock, Jerrold M.; Vanek, Anthony L.

    This volume, dedicated to Professor Robert B. Lees on the occasion of his departure from the University of Illinois, contains 15 papers on a variety of linguistic topics: C. L. Baker, "Problems of Polarity in Counterfactuals"; Lawrence F. Bouton, "Do So: Do+Adverb"; Chin-chuan Cheng, "Domains of Phonological Rule Application"; Joseph F. Foster,…

  19. Myanmar, Southeast Asia as seen from STS-59

    NASA Technical Reports Server (NTRS)

    1994-01-01

    View westward from Burma across a finger of India into the Ganges Delta in Bangladesh. The meandering stream in the foreground is the Chindwin River about 100 miles northwest of Mandalay; the stream having tiny meanders is the Myittha; and the stream in sunglint is the Manipur River flowing through the Chin Hills. Extensive hillside fires fill the valleys of Burma with smoke.

  20. Polyhydramnios and cerebellar atrophy: a prenatal presentation of mitochondrial encephalomyopathy caused by mutations in the FBXL4 gene.

    PubMed

    van Rij, Maartje C; Jansen, Fenna A R; Hellebrekers, Debby M E I; Onkenhout, W; Smeets, Hubert J M; Hendrickx, Alexandra T; Gottschalk, Ralph W H; Steggerda, Sylke J; Peeters-Scholte, Cacha M P C D; Haak, Monique C; Hilhorst-Hofstee, Yvonne

    2016-04-01

    Severe recessive mitochondrial myopathy caused by FBXL4 gene mutations may present prenatally with polyhydramnios and cerebellar hypoplasia. Characteristic dysmorphic features are: high and arched eyebrows, triangular face, a slight upslant of palpebral fissures, and a prominent pointed chin. Metabolic investigations invariably show increased serum lactate and pyruvate levels. PMID:27099744

  1. The Grapefruit Race: Demonstrating the Influence of Competition on Gender Differences in Intimacy

    ERIC Educational Resources Information Center

    Hebl, Mikki R.; King, Eden B.; McGuire, Julie; Turchin, Melissa

    2008-01-01

    We present an interactive demonstration of factors that mitigate gender differences. Male and female volunteers pass a grapefruit from one classmate to the next using only their chins. The speed of task completion depends on its framing; when the volunteers believe the task is an exercise, women tend to be faster than men, whereas the opposite…

  2. URBAN PARTICLE-INDUCED PULMONARY ARTERY CONSTRUCTION IS MEDIATED BY SUPEROXIDE PRODUCTION

    EPA Science Inventory

    URBAN PARTICLE-INDUCED PULMONARY ARTERY CONSTRICTION IS MEDIATED BY SUPEROXIDE PRODUCTION.Jacqueline D. Carter, Zhuowei Li, Lisa A. Dailey, Yuh-Chin T. Huang. CEMALB, University of North Carolina, and ORD, US EPA, Chapel Hill, North Carolina.

    Exposure to particulate matter...

  3. Insecure Commitment and Resistance: An Examination of Change Leadership, Self-Efficacy, and Trust on the Relationship between Job Insecurity, Employee Commitment, and Resistance to Organizational Change

    ERIC Educational Resources Information Center

    Smith, Robert Elijah

    2013-01-01

    This study was designed to examine the mediation role of self-efficacy and the moderating roles of change leadership strategy and trust on the change attitudes of job insecure employees. Using job insecurity theory (Greenhalgh, 1983), Chin & Benne's (1961) seminal classification of change leadership strategies and the tripartite model of…

  4. A Randomized Study of Three Interventions for Aspiration of Thin Liquids in Patients with Dementia or Parkinson's Disease

    ERIC Educational Resources Information Center

    Logemann, Jeri A.; Gensler, Gary; Robbins, JoAnne; Lindblad, Anne S.; Brandt, Diane; Hind, Jacqueline A.; Kosek, Steven; Dikeman, Karen; Kazandjian, Marta; Gramigna, Gary D.; Lundy, Donna; McGarvey-Toler, Susan; Miller Gardner, Patricia J.

    2008-01-01

    Purpose: This study was designed to identify which of 3 treatments for aspiration on thin liquids--chin-down posture, nectar-thickened liquids, or honey-thickened liquids--results in the most successful immediate elimination of aspiration on thin liquids during the videofluorographic swallow study in patients with dementia and/or Parkinson's…

  5. CALL Environments: Research, Practice, and Critical Issues.

    ERIC Educational Resources Information Center

    Egbert, Joy, Ed.; Hanson-Smith, Elizabeth, Ed.

    Essays on computer-assisted language learning (CALL) include: "Computer-Enhanced Language Learning Environments" (Joy Egbert, Chin-chi Chao, Elizabeth Hanson-Smith); "Theory and Research Interaction via Computers" (Joy Kreeft Peyton); "Classroom Practice: Creating Interactive CALL Activities" (Joy Egbert); "CALL Issues: Building a…

  6. A new bite block for panoramic radiographs of anterior edentulous patients: A technical report

    PubMed Central

    Park, Jong-Woong; Symkhampha, Khanthaly; Huh, Kyung-Hoe; Yi, Won-Jin; Lee, Sam-Sun; Choi, Soon-Chul

    2015-01-01

    Purpose Panoramic radiographs taken using conventional chin-support devices have often presented problems with positioning accuracy and reproducibility. The aim of this report was to propose a new bite block for panoramic radiographs of anterior edentulous patients that better addresses these two issues. Materials and Methods A new panoramic radiography bite block similar to the bite block for dentulous patients was developed to enable proper positioning stability for edentulous patients. The new bite block was designed and implemented in light of previous studies. The height of the new bite block was 18 mm and to compensate for the horizontal edentulous space, its horizontal width was 7 mm. The panoramic radiographs using the new bite block were compared with those using the conventional chin-support device. Results Panoramic radiographs taken with the new bite block showed better stability and bilateral symmetry than those taken with the conventional chin-support device. Patients also showed less movement and more stable positioning during panoramic radiography with the new bite block. Conclusion Conventional errors in panoramic radiographs of edentulous patients could be caused by unreliability of the chin-support device. The newly proposed bite block for panoramic radiographs of edentulous patients showed better reliability. Further study is required to evaluate the image quality and reproducibility of images with the new bite block. PMID:26125007

  7. 29 CFR Appendix B to Subpart I to... - Non-mandatory Compliance Guidelines for Hazard Assessment and Personal Protective Equipment...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...: (a) sources of motion; i.e., machinery or processes where any movement of tools, machine elements or.... (Chin straps should break at a reasonably low force, however, so as to prevent a strangulation hazard... caps and full brimmed hats. Beginning in 1997, Type I designated helmets designed to reduce the...

  8. Aesthetic plastic correction of incomplete testicular feminization.

    PubMed

    Hinderer, U T

    1979-12-01

    Surgery was performed for feminization of ambiguous (male) external genitalia in 1973 on a patient with incomplete testicular feminization (familial male hermaphroditism of mixed variety). Rhinoplasty and augmentation of the chin, the malar region, the breasts were also performed not only to improve the patient's sexual role but to enhance the aesthetic appearance, as an aid in better phychosocial adaptation. PMID:24173991

  9. 42 CFR 84.1130 - Respirators; description.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... respective vapors, or from the chemical reaction between their respective vapors and gases. (3) Air-purifying... reaction with sorbent material in the canister. (c) Pesticide respirators, including all completely...) Front-mounted or back-mounted gas masks; (2) Chin-style gas mask; (3) Chemical cartridge; (4)...

  10. 42 CFR 84.1130 - Respirators; description.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... respective vapors, or from the chemical reaction between their respective vapors and gases. (3) Air-purifying... reaction with sorbent material in the canister. (c) Pesticide respirators, including all completely...) Front-mounted or back-mounted gas masks; (2) Chin-style gas mask; (3) Chemical cartridge; (4)...

  11. 42 CFR 84.1130 - Respirators; description.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... respective vapors, or from the chemical reaction between their respective vapors and gases. (3) Air-purifying... reaction with sorbent material in the canister. (c) Pesticide respirators, including all completely...) Front-mounted or back-mounted gas masks; (2) Chin-style gas mask; (3) Chemical cartridge; (4)...

  12. 42 CFR 84.1130 - Respirators; description.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... respective vapors, or from the chemical reaction between their respective vapors and gases. (3) Air-purifying... reaction with sorbent material in the canister. (c) Pesticide respirators, including all completely...) Front-mounted or back-mounted gas masks; (2) Chin-style gas mask; (3) Chemical cartridge; (4)...

  13. The Evaluation and Treatment of Aggression Maintained by Attention and Automatic Reinforcement.

    ERIC Educational Resources Information Center

    Thompson, Rachel H.; Fisher, Wayne W.; Piazza, Cathleen C.; Kuhn, David E.

    1998-01-01

    A study used direct and indirect methods to assess and treat several topographies of the aggression of a 7-year-old boy with severe mental retardation and pervasive personality disorder. Functional communication training with extinction reduced all forms of aggression except chin grinding, which was reduced by an alternative treatment. (Author/CR)

  14. Movement Activity Levels on Traditional and Contemporary Playground Structures.

    ERIC Educational Resources Information Center

    Gabbard, Carl P.; LeBlanc, Elizabeth

    This study investigated playground activity levels of children in grades K-4 and compared levels of use of traditional and creative playground apparatus. The traditional playground area consisted of climbing bars, slides, ladders, chin bars, swings, see saws, and a merry-go-round. The creative playground contained tire hurdles, tire walk, tire…

  15. On Developing an Art and Ecology Curriculum.

    ERIC Educational Resources Information Center

    Hollis, Cynthia L.

    1997-01-01

    Surveys the work of several ecological artists, describes their work, and includes a brief rational for their activity. Examines the artwork of Joseph Beuys in Germany, Andy Goldsworthy in Scotland, as well as Mierle Ukeles, Mel Chin, David Hanson, Ana Mendieta, and Helen and Newton Harrison in the United States. (MJP)

  16. Sovereignty and Inter-governmental Relations with Arizona Indian Tribes--A Report on the Indian Town Hall (2nd, White Mountain Apache Reservation, August 20-22, 1974).

    ERIC Educational Resources Information Center

    Arizona Commission of Indian Affairs, Phoenix.

    Established by the Arizona legislature in 1953 and serving as official link between tribal autonomies and State government, the Arizona Commission of Indian Affairs has recently sponsored its second conference, the proceedings of which constituted this report. Conference participants, forming two panel discussion groups, represented the Ak-Chin,…

  17. In vitro and in vivo characterization of chimeric duck Tembusu virus based on Japanese encephalitis live vaccine strain SA14-14-2.

    PubMed

    Wang, Hong-Jiang; Liu, Long; Li, Xiao-Feng; Ye, Qing; Deng, Yong-Qiang; Qin, E-De; Qin, Cheng-Feng

    2016-07-01

    Duck Tembusu virus (DTMUV), a newly identified flavivirus, has rapidly spread to China, Malaysia and Thailand. The potential threats to public health have been well-highlighted; however its virulence and pathogenesis remain largely unknown. Here, by using reverse genetics, a recombinant chimeric DTMUV based on Japanese encephalitis live vaccine strain SA14-14-2 was obtained by substituting the corresponding prM and E genes (named ChinDTMUV). In vitro characterization demonstrated that ChinDTMUV replicated efficiently in mammalian cells with small-plaque phenotype in comparison with its parental viruses. Mouse tests showed ChinDTMUV exhibited avirulent phenotype in terms of neuroinvasiveness, while it retained neurovirulence from its parental virus DTMUV. Furthermore, immunization with ChinDTMUV was evidenced to elicit robust IgG and neutralizing antibody responses in mice. Overall, we successfully developed a viable chimeric DTMUV, and these results provide a useful platform for further investigation of the pathogenesis of DTMUV and development of a live attenuated DTMUV vaccine candidate. PMID:27100268

  18. International Symposium on Chinese Languages and Linguistics Proceedings (4th, Taipei, Taiwan, July 18-20, 1994).

    ERIC Educational Resources Information Center

    Ho, Dah-an, Ed.; Tseng, Chiu-yu, Ed.

    This publication of proceedings, most in English and some in Chinese, of a conference on Chinese languages and linguistics include the following papers: "On Rule Effect and Dialect Classification" (Chin-Chuan Cheng); "Cross-Linguistic Typological Variation, Grammatical Relations, and the Chinese Language" (Bernard Comrie); "Is Chinese a Pragmatic…

  19. Periodontal Side Effect During Orthopedic Face Mask Therapy.

    PubMed

    Incerti-Parenti, Serena; Checchi, Vittorio; Molinari, Camilla; Alessandri-Bonetti, Giulio

    2015-01-01

    A 7-year-old patient exhibited gingival recession of tooth #41 and severe plaque accumulation after 3 months of face mask therapy. The recession improved only slightly after appropriate oral hygiene instructions and motivation. Decisive improvement began when the vertical chin pad extension was reduced to avoid pressure on the affected area. PMID:27029093

  20. Comprehension Questioning Small Group Reading Instruction for Urban Students with Learning Disabilities

    ERIC Educational Resources Information Center

    Jones, Valerie

    2012-01-01

    It is evident from reading research that students with learning disabilities (LD) greatly benefit from teacher-student interactions during small group comprehension instruction (e.g., Berkeley, Scruggs, & Mastropieri, 2010). Given that questioning takes up the vast majority of instructional interactions between teachers and students (Chin,…

  1. Can longer forest harvest intervals increase summer streamflow for salmon recovery?

    EPA Science Inventory

    The Mashel Streamflow Modeling Project in the Mashel River Basin, Washington, is using a watershed-scale ecohydrological model to assess whether longer forest harvest intervals can remediate summer low flow conditions that have contributed to sharply reduced runs of spawning Chin...

  2. First report of graft-transmission and PCR detection of Candidatus Liberibacter asiaticus from Atalantia buxifolia in Guangdong, China

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Atalantia buxifolia (Jiubingle), syn. Severinia buxifolia, is a common landscape plant and a popular Chinese medicinal herb known as Dongfengjie. It is unclear if this Rutaceous plant is a host for Candidatus Liberibacter asiaticus, the pathogen of citrus Huanglongbing (HLB) in Guangdong, P. R. Chin...

  3. 1. Historic American Buildings Survey E. W. Russell, Photographer, February ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Historic American Buildings Survey E. W. Russell, Photographer, February 6, 1936 WROUGHT IRON GATE WITH CAST IRON ORNAMENTATION, 456 SO. CONCEPTION STREET - 456 South Conception Street (Iron Fence & Gate), (moved to 1802 Old Govt. & 3333 Riviere du Chin), Mobile, Mobile County, AL

  4. feature - Office of Cancer Clinical Proteomics Research

    Cancer.gov

    "Cancer is a disease of the genome," noted Lynda Chin, M.D., professor of dermatology, Harvard Medical School and Dana-Farber Cancer Institute. "And understanding the impact of genomic changes in the proteome is critically important for converting genomic knowledge into something that a clinician can use on their patients."

  5. Adaptation of the Students' Motivation towards Science Learning (SMTSL) Questionnaire in the Greek Language

    ERIC Educational Resources Information Center

    Dermitzaki, Irini; Stavroussi, Panayiota; Vavougios, Denis; Kotsis, Konstantinos T.

    2013-01-01

    The present study aimed at adapting in the Greek language the Students' Motivation Towards Science Learning (SMTSL) questionnaire developed by Tuan, Chin, and Shieh ("INT J SCI EDUC" 27(6): 639-654, 2005a) into a different cultural context, a different age group, that is, in university students and with a focus on physics learning.…

  6. VANADL SULFATE INHIBITS NO PRODUCTION BY DIFFERENTIALLY REGULATING SERINE/THREONINE PHOSPHORYLATION OF ENOS

    EPA Science Inventory

    VANADYL SULFATE INHIBITS NO PRODUCTION BY DIFFERENTIALLY REGULATING SERINE/THREONINE PHOSPHORYLATION OF eNOS. Zhuowei Li, Jacqueline D. Carter, Lisa A. Dailey, Joleen Soukup, Yuh-Chin T. Huang. CEMALB, University of North Carolina and ORD, US EPA, Chapel Hill, North Carolina
    V...

  7. VANADYL SULFATE INHIBITS NO PRODUCTION BY DIFFERENTIALLY REGULATING SERINE/THREONINE PHOSPHORYLATION OF ENOS

    EPA Science Inventory

    VANADYL SULFATE INHIBITS NO PRODUCTION BY DIFFERENTIALLY REGULATING SERINE/THREONINE PHOSPHORYLATION OF eNOS.

    Zhuowei Li, Jacqueline D. Carter, Lisa A. Dailey, Joleen Soukup, Yuh-Chin T. Huang. CEMALB, University of North Carolina and NHEERL, US EPA, Chapel Hill, North Ca...

  8. Modified triaca-style wing osteotomy to correct facial asymmetry in a patient with horizontal growth-type condylar hyperplasia.

    PubMed

    Wenghoefer, Matthias; Peters, Armin; Reich, Rudolf Hermann

    2013-01-01

    In this short communication, we suggest a slight modification of Albino Triaca's chin-wing osteotomy to vertically correct the inferior border of the mandible in a patient with horizontal growth-type facial asymmetry due to condylar hyperplasia. PMID:24036777

  9. NITROTYROSINATION OF A TUBULIN INDUCES EPITHELIAL BARRIER DYSFUNCTION

    EPA Science Inventory

    Nitrotyrosination of a-Tubulin Induces Epithelial Transport Dysfunction. Yuh-Chin Huang, Lisa Dailey, Wen-Li Zhang and Ilona Jaspers. ORD, Environmental Protection Agency and CEMLB, University of North Carolina

    a-Tubulin undergoes a cyclic removal and readdition of tyrosin...

  10. NITROTYROSINE ATTENUATES RSV-INDUCED INFLAMMATION IN AIRWAY EPITHELIAL CELLS

    EPA Science Inventory

    Nitrotyrosine attenuates RSV-induced inflammation in airway epithelial cells. Joleen Soukup, Zuowei Li, Susanne Becker and Yuh-Chin Huang. NHEERL, ORD, USEPA, RTP, North Carolina, CEMALB, University of North Carolina, Chapel Hill, North Carolina

    Nitrotyrosine (NO2Tyr) is a...

  11. Session: Reservoir Technology

    SciTech Connect

    Renner, Joel L.; Bodvarsson, Gudmundur S.; Wannamaker, Philip E.; Horne, Roland N.; Shook, G. Michael

    1992-01-01

    This session at the Geothermal Energy Program Review X: Geothermal Energy and the Utility Market consisted of five papers: ''Reservoir Technology'' by Joel L. Renner; ''LBL Research on the Geysers: Conceptual Models, Simulation and Monitoring Studies'' by Gudmundur S. Bodvarsson; ''Geothermal Geophysical Research in Electrical Methods at UURI'' by Philip E. Wannamaker; ''Optimizing Reinjection Strategy at Palinpinon, Philippines Based on Chloride Data'' by Roland N. Horne; ''TETRAD Reservoir Simulation'' by G. Michael Shook

  12. The Cortical Connectivity of the Prefrontal Cortex in the Monkey Brain

    PubMed Central

    Yeterian, Edward H.; Pandya, Deepak N.; Tomaiuolo, Francesco; Petrides, Michael

    2011-01-01

    One dimension of understanding the functions of the prefrontal cortex is knowledge of cortical connectivity. We have surveyed three aspects of prefrontal cortical connections: local projections (within the frontal lobe), the termination patterns of long association (post-Rolandic) projections, and the trajectories of major fiber pathways. The local connections appear to be organized in relation to dorsal (hippocampal origin) and ventral (paleocortical origin) architectonic trends. According to the proposal of a dual origin of the cerebral cortex, cortical areas can be traced as originating from archicortex (hippocampus) on the one hand, and paleocortex, on the other hand, in a stepwise manner (e.g., Sanides, 1969; Pandya and Yeterian, 1985). Prefrontal areas within each trend are connected with less architectonically differentiated areas, and, on the other hand, with more differentiated areas. Such organization may allow for the systematic exchange of information within each architectonic trend. The long connections of the prefrontal cortex with post-Rolandic regions seem to be organized preferentially in relation to dorsal and ventral prefrontal architectonic trends. Prefrontal areas are connected with post-Rolandic auditory, visual and somatosensory association areas, and with multimodal and paralimbic regions. This long connectivity likely works in conjunction with local connections to serve prefrontal cortical functions. The afferent and efferent connections of the prefrontal cortex with post-Rolandic regions are conveyed by specific long association pathways. These pathways as well appear to be organized in relation to dorsal and ventral prefrontal architectonic trends. Finally, although prefrontal areas have preferential connections in relation to dual architectonic trends, it is clear that there are interconnections between and among areas in each trend, which may provide a substrate for the overall integrative function of the prefrontal cortex. Prefrontal

  13. Atypical "benign" partial epilepsy of childhood or pseudo-lennox syndrome. Part II: family study.

    PubMed

    Doose, H; Hahn, A; Neubauer, B A; Pistohl, J; Stephani, U

    2001-02-01

    Atypical benign partial epilepsy of childhood (ABPE = Pseudo-Lennox syndrome) shows semiologic parallels to Lennox-Gastaut syndrome, however--besides the lack of tonic seizures--it has an entirely different etiology and prognosis. Recently Hahn et al [17] investigated the long-term evolution of 43 cases with ABPE. Symptomatology, EEG findings, and course were found to overlap with Rolandic epilepsy, Landau-Kleffner syndrome and ESES. The incidence of seizures in relatives was determined in the whole series investigated by Hahn et al [17]. Five of 56 siblings suffered from seizures (3 Rolandic seizures; one febrile convulsions; one unclassified). Three fathers reported grand mal. In 29 families of the series of Hahn et al EEG recordings were performed: 22 brothers, 19 sisters and 16 pairs of parents. In 29% of the siblings a sharp wave focus was demonstrable. The rate rose to 40% when only siblings investigated at the age of maximum expression (3 to 10 years) were considered. Sharp wave foci were mostly multifocal and indistinguishable from those observed in siblings of children with Rolandic epilepsy. Photoparoxysmal response and generalized spikes and waves during rest and hyperventilation were also found to be significantly elevated (26% and 13% respectively). We conclude that ABPE is a subgroup of idiopathic partial epilepsy of childhood (representing a less benign part of a spectrum) that has to be ranked in a continuum with Rolandic epilepsy. The different clinical phenotype might be caused by a higher expressivity of the identical genetic trait, possibly facilitated by other genetic or acquired factors. Genetic heterogeneity represents another possibility. PMID:11315204

  14. Fireworks under the microscope: a spectacular new species of Zodiomyces from the Thaxter collection.

    PubMed

    Rossi, Walter; Haelewaters, Danny; Pfister, Donald H

    2016-01-01

    A new species of Zodiomyces (Ascomycota, Laboulbeniales) is described, Z. rhizophorus, parasitic on a hydrophilid beetle (Coleoptera, Hydrophilidae) from Trinidad. This species was discovered during the examination of the slides of Laboulbeniales made by Roland Thaxter. It is characterized by numerous long, slender, multicellular and multiseriate outgrowths at the base of the receptacle. Thaxter's outstanding illustrations have set a standard in the field of mycology; we provide a review of the methods he employed in the preparation of these illustrations. PMID:27055574

  15. Data-Based Methods for AB Initio Protein Structure Prediction

    SciTech Connect

    Dr Keith L. Frost

    2002-11-07

    OAK 270 - Per the DOE Project Officer ''Roland Hirsh'' Germantown, Md. The required final report for this award has been waived due to the fact Dr Keith Frost who was the P.I. on the research took a leave of absence at the end of March 2000, and left the university without an approval. The University adjusted their records to reflect this early termination; no further funding applied.

  16. 737 Windshear Tests, Orlando

    NASA Technical Reports Server (NTRS)

    1992-01-01

    NASA researchers evaluating wind shear sensor displays in the experimental flight deck at NASA's Boeing 737 research aircraft. During this flight test program, over 75 microbursts were penetrated at altitudes from 800-1100 ft to test the performance of radar, lidar and infrared wind shear sensors. Pictured from left to right are Wind Shear Program Manager Roland Bowles, NASA research pilot Lee Person, Wind Shear Program Deputy Manager Michael Lewis, NASA research engineer David Hinton, NASA research engineer Emedio Bracalante.

  17. Language and central temporal auditory processing in childhood epilepsies.

    PubMed

    Boscariol, Mirela; Casali, Raquel L; Amaral, M Isabel R; Lunardi, Luciane L; Matas, Carla G; Collela-Santos, M Francisca; Guerreiro, Marilisa M

    2015-12-01

    Because of the relationship between rolandic, temporoparietal, and centrotemporal areas and language and auditory processing, the aim of this study was to investigate language and central temporal auditory processing of children with epilepsy (rolandic epilepsy and temporal lobe epilepsy) and compare these with those of children without epilepsy. Thirty-five children aged between eight and 14 years old were studied. Two groups of children participated in this study: a group with childhood epilepsy (n=19), and a control group without epilepsy or linguistic changes (n=16). There was a significant difference between the two groups, with the worst performance in children with epilepsy for the gaps-in-noise test, right ear (p<0.001) and left ear (p<0.001) tests, and duration pattern test--naming (p=0.002) and humming (p=0.002). In auditory P300, there was no significant difference in latency (p=0.343) and amplitude (p=0.194) between the groups. There was a significant difference between the groups, with the worst performance in children with epilepsy, for the auditory-receptive vocabulary (PPVT) (p<0.001) and phonological working memory (nonwords repetition task) tasks (p=0.001). We conclude that the impairment of central temporal auditory processing and language skills may be comorbidities in children with rolandic epilepsy and temporal lobe epilepsy. PMID:26580215

  18. Effect of white matter disease on functional connections in the aging brain.

    PubMed Central

    Leuchter, A F; Dunkin, J J; Lufkin, R B; Anzai, Y; Cook, I A; Newton, T F

    1994-01-01

    Periventricular white matter hyperintensities (PVHs) seen on T2 weighted MRI studies are common in elderly people and often represent demyelination of fibres. Damage to these fibres could lead to functional disconnection between brain regions. Electroencephalographic coherence, a measure of shared electrical activity between regions, was examined to determine if there was evidence for such disconnection. Twenty two subjects with clinically diagnosed dementia of the Alzheimer's type, 16 with multi-infarct dementia, and 18 normal controls were studied. It was hypothesised that coherence between areas presumably linked by fibres that traverse the periventricular region would be decreased in subjects with PVHs, and that PVHs would have a stronger association with decreased coherence than clinical diagnosis. It was also hypothesised that coherence between areas presumably connected by long corticocortical tracts that are neuroanatomically separated from the ventricles would be low in patients with Alzheimer's disease because of pyramidal cell death in this group, but would not be affected by the presence of PVHs. Patients with PVHs in fact had lower coherence than those without PVHs in the pre-Rolandic and post-Rolandic areas, where connecting fibres traverse the periventricular region. There was no effect of PVHs, however, on coherence between areas separated by the Rolandic fissure that were connected by long corticocortical tracts; this coherence was lowest among the patients with Alzheimer's disease. These patterns of association suggest that coherence may detect different types of neurophysiological "disconnection," and may be sensitive to selective damage to different fibre pathways. Images PMID:7964810

  19. Positron computed tomography studies of cerebral metabolic responses to complex motor tasks

    SciTech Connect

    Phelps, M.E.; Mazziotta, J.C.

    1984-01-01

    Human motor system organization was explored in 8 right-handed male subjects using /sup 18/F-fluorodeoxyglucose and positron computed tomography to measure cerebral glucose metabolism. Five subjects had triple studies (eyes closed) including: control (hold pen in right hand without moving), normal size writing (subject repeatedly writes name) and large (10-15 X normal) name writing. In these studies normal and large size writing had a similar distribution of metabolic responses when compared to control studies. Activations (percent change from control) were in the range of 12-20% and occurred in the striatum bilaterally > contralateral Rolandic cortex > contralateral thalamus. No significant activations were observed in the ipsilateral thalamus, Rolandic cortex or cerebellum (supplementary motor cortex was not examined). The magnitude of the metabolic response in the striatum was greater with the large versus normal sized writing. This differential response may be due to an increased number and topographic distribution of neurons responding with the same average activity between tasks or an increase in the functional activity of the same neuronal population between the two tasks (present spatial resolution inadequate to differentiate). When subjects (N=3) performed novel sequential finger movements, the maximal metabolic response was in the contralateral Rolandic cortex > striatum. Such studies provide a means of exploring human motor system organization, motor learning and provide a basis for examining patients with motor system disorders.

  20. One-trial object recognition memory in the domestic rabbit (Oryctolagus cuniculus) is disrupted by NMDA receptor antagonists.

    PubMed

    Hoffman, Kurt Leroy; Basurto, Enrique

    2013-08-01

    The spontaneous response to novelty is the basis of one-trial object recognition tests for the study of object recognition memory (ORM) in rodents. We describe an object recognition task for the rabbit, based on its natural tendency to scent-mark ("chin") novel objects. The object recognition task comprised a 15min sample phase in which the rabbit was placed into an open field arena containing two similar objects, then removed for a 5-360min delay, and then returned to the same arena that contained one object similar to the original ones ("Familiar") and one that differed from the original ones ("Novel"), for a 15min test phase. Chin-marks directed at each of the objects were registered. Some animals received injections (sc) of saline, ketamine (1mg/kg), or MK-801 (37μg/kg), 5 or 20min before the sample phase. We found that chinning decreased across the sample phase, and that this response showed stimulus specificity, a defining characteristic of habituation: in the test phase, chinning directed at the Novel, but not Familiar, object was increased. Chinning directed preferentially at the novel object, which we interpret as novelty-induced sensitization and the behavioral correlate of ORM, was promoted by tactile/visual and spatial novelty. ORM deficits were induced by pre-treatment with MK-801 and, to a lesser extent, ketamine. Novel object discrimination was not observed after delays longer than 5min. These results suggest that short-term habituation and sensitization, not long-term memory, underlie novel object discrimination in this test paradigm. PMID:23651879

  1. Ethnic and Gender Considerations in the Use of Facial Injectables: Male Patients.

    PubMed

    de Maio, Mauricio

    2015-11-01

    The contemporary male look includes sharp contours of the face with strong nose, significant malar-midface structure, and a powerful chin with well-defined jawline. Neurotoxins in the upper facial lines should preserve a lower position of the brows and flatter arch in men. Excessive lifting of the eyebrows and full correction of forehead and periorbital lines are not desirable. The use of dermal fillers is fully accepted into the nasolabial. Male patients with sagginess and hollowness related or not related to acquired lipodystrophies are candidates for cheek correction with volumizers. Female attractiveness lies in the cheekbones, and for men, it lies in the chin. The use of volumizers in the chin is very much appreciated by male patients, especially when it is recessed. A strong and masculine appearance is obtained by creating a square chin. Men present slight thinner lips, especially the upper one. Lip reshape in male patients is very much rejected. It requires expertise both in communication and in technical skills to convince male patients to undergo lip treatments with fillers. The use of injectables in male patients is growing. Neurotoxins in the upper facial lines and the use of dermal fillers in the nasolabial folds are widely accepted. The use of volumizers in the chin is highly appreciated. There is clear need of volumizers in the cheek to correct sagginess and hollowness in men. However, proper communication and technique are required. The same applies for the lips. Cheek and lip reshape is still considered a taboo for most patients and injectors. PMID:26441109

  2. Photographic Facial Soft Tissue Analysis by Means of Linear and Angular Measurements in an Adolescent Persian Population

    PubMed Central

    Moshkelgosha, Vahid; Fathinejad, Sheida; Pakizeh, Zeinab; Shamsa, Mohammad; Golkari, Ali

    2015-01-01

    Objective : To obtain objective average measurements of the profile and frontal facial soft tissue to be used as a guide for aesthetic treatment goals. Methods and Materials : This observational study included 110 females and 130 males high school students aged 16-18 years. None of the subjects had any facial deformities. All of them and their parents gave consent to take part in this study. In each case, two standard photographs of profile and frontal views were taken 27 landmarks were digitized on photographs. The mean, standard deviation, and range for a total of 43 facial indices were calculated digitally by computer software. The Student’s t-test was used to compare males and females. Results : The ratio between the lower and middle facial thirds was one to one, but the height of the upper facial third was proportionally smaller than the other two-thirds in both sexes. Boys had greater nasal length, depth, and prominence than girls with statistically significant differences. Both upper and lower lips were more prominent in girls than in boys. All measurements of the chin showed sexual dimorphism characterized by greater chin height and prominence and deeper mentolabial sulcus. Boys had greater facial dimensions than girls. Mouth width, nasal base width, and intercanthal distance were significantly greater in boys. Conclusion : The labial, nasal, and chin areas showed sexual dimorphism in most of the parameters used in this study. Boys had larger faces, greater facial heights, longer nasal, labial, and chin lengths, and greater nasal, labial, and chin prominence. PMID:26464606

  3. [Facial femalization in transgenders].

    PubMed

    Yahalom, R; Blinder, D; Nadel, S

    2015-07-01

    Transsexualism is a gender identity disorder in which there is a strong desire to live and be accepted as a member of the opposite sex. In male-to-female transsexuals with strong masculine facial features, facial feminization surgery is performed as part of the gender reassignment. A strong association between femininity and attractiveness has been attributed to the upper third of the face and the interplay of the glabellar prominence of the forehead. Studies have shown that a certain lower jaw shape is characteristic of males with special attention to the strong square mandibular angle and chin and also suggest that the attractive female jaw is smaller with a more round shape mandibular angles and a pointy chin. Other studies have shown that feminization of the forehead through cranioplasty have the most significant impact in determining the gender of a patient. Facial feminization surgeries are procedures aimed to change the features of the male face to that of a female face. These include contouring of the forehead, brow lift, mandible angle reduction, genioplasty, rhinoplasty and a variety of soft tissue adjustments. In our maxillofacial surgery department at the Sheba Medical Center we perform forehead reshaping combining with brow lift and at the same surgery, mandibular and chin reshaping to match the remodeled upper third of the face. The forehead reshaping is done by cranioplasty with additional reduction of the glabella area by burring of the frontal bone. After reducing the frontal bossing around the superior orbital rims we manage the soft tissue to achieve the brow lift. The mandibular reshaping, is performed by intraoral approach and include contouring of the angles by osteotomy for a more round shape (rather than the manly square shape angles), as well as reshaping of the bone in the chin area in order to make it more pointy, by removing the lateral parts of the chin and in some cases performing also genioplasty reduction by AP osteotomy. PMID

  4. Effects of asymmetric sitting on spinal balance

    PubMed Central

    Woo, Hee Soon; Oh, Jong Chi; Won, Sung Yoon

    2016-01-01

    [Purpose] To investigate the effects of two common asymmetric sitting positions on spinal balance. [Subjects and Methods] Thirty-seven healthy subjects in their twenties were enrolled and randomly divided into two groups. Asymmetric positions of resting the chin on a hand and crossing the legs were performed by each group for 1 hour. After 1 hour, the subjects lay in the supine position again and spinal imbalance was measured using a device. [Results] After 1 hour of resting with the chin on a hand, sagittal imbalance, coronal imbalance, pelvic obliquity and lordosis angle presented spinal imbalance worsening of 1 hour of crossing legs, sagittal imbalance, pelvic torsion showed in mainly learned spinal imbalance living. [Conclusion] Good posture could be an innate ability, however it through habits. So this study is meaningful from the perspective of the importance of good posture. PMID:27065291

  5. Enhancement of the results of neck liposuction with the FAMI technique.

    PubMed

    Butterwick, Kimberly J

    2003-10-01

    Submental liposuction is an excellent procedure for improving the aging neck by reducing the cervicomental angle and increasing the definition of the mandibular border. However, it does not address the loss of volume of the chin and perioral areas caused by atrophy of hard and soft tissues. In this study, thirty patients underwent concomitant submental tumescent liposuction and fat augmentation with the FAMI (fat autograft muscle injection) technique in order to assess short-term results and complications associated with these two relatively noninvasive procedures. All patients had improvement in the cervicomental border, a smoother mandibular border, and a more proportioned chin following 3-5 days of swelling. Patients followed for 6 months to one year had long term retention of fat. There were no significant complications. In this preliminary series, submental tumescent liposuction with FAMI provided enhanced aesthetic results with little downtime and minimal complications. PMID:14558395

  6. Sex and age identification of palila

    USGS Publications Warehouse

    Jeffrey, J.J.; Fancy, S.G.; Lindsey, G.D.; Banko, P.C.; Pratt, T.K.; Jacobi, J.D.

    1993-01-01

    Methods to sex and age Palila (Loxioides bailleui), an endangered Hawaiian finch restricted to subalpine woodlands on Hawai'i, were identified on the basis of measurements and plumage characteristics of 17 museum specimens and 96 known-age, live Palila. Palila undergo a single annual molt during September-December following the breeding season. Presence of a complete or partial wingbar distinguishes hatch-year and second-year Palila from after-second-year birds. Adult male Palila are distinguished from females by a distinct napeline and lt 30% gray feathers intermixed with yellow feathers on the head. The black or gray feathers of the lores and chin of males are darker than those on the back, whereas the lores and chin of females are lighter or of the same shade as back feathers.

  7. Orocutaneous Fistula or Traumatic Infectious Skin Lesion: A Diagnostic Dilemma

    PubMed Central

    Vermani, Mayank; Kalia, Vimal; Singh, Sumita; Garg, Sunny; Aggarwal, Shweta; Khurana, Richa; Kalra, Geeta

    2015-01-01

    Orocutaneous fistula (OCF) (of dental origin) is an uncommon but well-described condition in the literature. These are often misdiagnosed by physicians and dentists. Careful selection of investigating modality is important in case of diagnostically challenging cases. A 19-year-old female came with a complaint of a lesion on the chin reported with h/o trauma with the impact on chin presented as diagnostic dilemma because of unusual case history and clinical examination. Commonly used radiographic investigations like IOPA and orthopantomograph did not resolve the dilemma whereas advanced imaging modality like CT scan, 3D volume imaging, and contrast enhanced CT played an important role in the diagnosis of OCF and selecting the treatment plan. PMID:26618009

  8. Review of rapid eye movement behavior sleep disorders.

    PubMed

    Abad, Vivien C; Guilleminault, Christian

    2004-03-01

    The spectrum of rapid eye movement behavior disorders (RBD) spans various age groups, with the greatest prevalence in elderly men. Major diagnostic features include harmful or potentially harmful sleep behaviors that disrupt sleep continuity and dream enactment during rapid eye movement sleep. In RBD patients, the polysomnogram during rapid eye movement sleep demonstrates excessive augmentation of chin electromyogram or excessive chin or limb phasic electromyogram twitching. RBD may be associated with various neurodegenerative disorders, such as multiple system atrophy, Parkinson's disease, and dementia with Lewy bodies. Other co-morbid conditions may include narcolepsy, agrypnia excitata, sleepwalking, and sleep terrors. RBD is hypothesized to be caused by primary dysfunction of the pedunculo-pontine nucleus or other key brainstem structures associated with basal ganglia pathology or, alternatively, from abnormal afferent signals in the basal ganglia leading to dysfunction in the midbrain extrapyramidal area/ pedunculo-pontine nucleus regions. PMID:14984689

  9. Tracking cohesive subgroups over time in inferred social networks

    NASA Astrophysics Data System (ADS)

    Chin, Alvin; Chignell, Mark; Wang, Hao

    2010-04-01

    As a first step in the development of community trackers for large-scale online interaction, this paper shows how cohesive subgroup analysis using the Social Cohesion Analysis of Networks (SCAN; Chin and Chignell 2008) and Data-Intensive Socially Similar Evolving Community Tracker (DISSECT; Chin and Chignell 2010) methods can be applied to the problem of identifying cohesive subgroups and tracking them over time. Three case studies are reported, and the findings are used to evaluate how well the SCAN and DISSECT methods work for different types of data. In the largest of the case studies, variations in temporal cohesiveness are identified across a set of subgroups extracted from the inferred social network. Further modifications to the DISSECT methodology are suggested based on the results obtained. The paper concludes with recommendations concerning further research that would be beneficial in addressing the community tracking problem for online data.

  10. Penning trap mass measurement of 72Br

    NASA Astrophysics Data System (ADS)

    Valverde, A. A.; Bollen, G.; Cooper, K.; Eibach, M.; Gulyuz, K.; Izzo, C.; Morrissey, D. J.; Ringle, R.; Sandler, R.; Schwarz, S.; Sumithrarachchi, C. S.; Villari, A. C. C.

    2015-03-01

    The Low Energy Beam and Ion Trap (LEBIT) Penning trap mass spectrometer was used to perform an improved-precision mass measurement of 72Br and the low-lying isomeric state, Brm72, giving mass excesses of -59 062.2 (1.0 )keV and -58 960.9 (1.2 )keV , respectively. These values are consistent with the values from the 2012 atomic mass evaluation [Chin. Phys. C 36, 1603 (2012), 10.1088/1674-1137/36/12/003] and the Nubase2012 evaluation of nuclear properties [Chin. Phys. C 36, 1157 (2012), 10.1088/1674-1137/36/12/001]. The uncertainties on the mass of the ground state and isomeric state have been reduced by a factor of seven.

  11. Lightweight device to stimulate and monitor human vestibulo-ocular reflex

    NASA Technical Reports Server (NTRS)

    McStravick, M. Catherine (Inventor); Proctor, David R. (Inventor); Wood, Scott J. (Inventor)

    1989-01-01

    A helmet formed of a rigid shell is disclosed. The shell is lined with several air filled bladders to contact firmly the head of a user. The shell has a rigid chin bar supporting a bite bar connected fixedly to a mouthpiece bearing against the teeth and hard palate to firmly anchor the helmet without movement. The outer shell surface supports various air pumping bulbs and accelerometers. Separate left and right visor pivot on the side guided in a central tongue and groove track to move optical lens mounts into the user's field of vision. The chin bar is connected to the shell by a pair of releasable clasps. A safety lanyard connects to the clasps to quickly pull pins from the clasps to enable quick release in case of motion sickness.

  12. [Investigation of the effect of functional treatment in skeletal Class III cases on the profile facial esthetics].

    PubMed

    Altuğ, Z; Erdem, D; Rübendüz, M

    1990-04-01

    In this study, effects of chin-cap therapy on profile facial esthetics were investigated. 30 patients indicating skeletal and dental Cl III anomalies were divided into two groups. The first group, including 21 patients with the average age of 11 was treated by chin-cap therapy, average treatment time being 0.7 years. This group involved 10 females and 11 males. The second group involved 9 persons, 5 females and 4 males, with the average age of 9.7, average control period being 2 years. The investigation was carried out on the 60 lateral cephalometric films taken from both groups. 2 angular and 9 soft tissue cephalometric measurements were made on each film. The comparisons between the groups indicated that the treatment affected the soft tissue measurements positively. PMID:2101659

  13. Local ICA for the Most Wanted face recognition

    NASA Astrophysics Data System (ADS)

    Guan, Xin; Szu, Harold H.; Markowitz, Zvi

    2000-04-01

    Facial disguises of FBI Most Wanted criminals are inevitable and anticipated in our design of automatic/aided target recognition (ATR) imaging systems. For example, man's facial hairs may hide his mouth and chin but not necessarily the nose and eyes. Sunglasses will cover the eyes but not the nose, mouth, and chins. This fact motivates us to build sets of the independent component analyses bases separately for each facial region of the entire alleged criminal group. Then, given an alleged criminal face, collective votes are obtained from all facial regions in terms of 'yes, no, abstain' and are tallied for a potential alarm. Moreover, and innocent outside shall fall below the alarm threshold and is allowed to pass the checkpoint. Such a PD versus FAR called ROC curve is obtained.

  14. Combined Treatment with Botulinum Toxin and 595-nm Pulsed Dye Laser for Traumatic Scarring.

    PubMed

    Lee, Sang Ju; Jeong, Se Yeong; No, Yeon A; Park, Kui Young; Kim, Beom Joo

    2015-12-01

    Traumatic scars on skin covering areas of high movement, especially areas on the face, can be stressful for patients. We report two cases of traumatic scars that occurred on the chin, and that were successfully treated with a combined therapy of 595-nm pulsed dye laser (PDL) and intramuscular injection of botulinum toxin. After the treatment, good cosmetic results were achieved in both patients. The only adverse effect during and after the treatments was mild pain, which resolved within several days without any additional treatment. In conclusion, the combination of 595-nm PDL and intramuscular botulinum toxin injection was shown to be a safe and effective treatment for traumatic scars on the mobile chin area in Korean patients. PMID:26719648

  15. Longitudinal study of combined orthodontic and surgical treatment of Class II malocclusion with deep overbite.

    PubMed

    Jäger, A; Kubein-Meesenburg, D; Luhr, H G

    1991-01-01

    Twenty-one patients who had undergone orthodontic treatment in combination with mandibular advancement surgery to treat Class II malocclusion and deep overbite were followed up. Median vertical relapse at the bony chin (after a mean followup of 16 months) was found to be 2.9 mm (44%). Sagittal advancement was found to have good stability; most of the patients exhibited some additional anterior movement of the chin during the follow-up period. At the same time, the entire mandible rotated counterclockwise and the gonial angle increased. Individual response to treatment varied greatly; two patients exhibited major horizontal relapse. Controlling the position of the mandibular proximal segment seemed to be the most important factor in posttreatment stability of this sample. PMID:1940537

  16. ASK Magazine. No. 9

    NASA Technical Reports Server (NTRS)

    Post, Todd (Editor)

    2002-01-01

    Most of this issue is about ACE (Advanced Composition Explorer). We've collected stories by four members of the ACE management team: Don Margolies, the mission manager from Goddard Space Flight Center; Frandsen, science payloads manager from the Caltech Jet Propulsion Laboratory; Mary Chin, project manager in charge of spacecraft development at the Johns Hopkins Applied Physics Laboratory; and Frank Snow, operations and ground systems manager at Goddard.

  17. Vertical Localization of the Malar Prominence

    PubMed Central

    Kaptein, John S.; Markarian, Alexander

    2015-01-01

    Background: During reconstruction or augmentation, it is important to localize the malar complex in a symmetrical and aesthetically pleasing position. Few studies have determined the location of this feature and none related the location to gender, age, or ethnicity. Some of these have attempted to relate the position to the aesthetically pleasing Golden Ratio φ. Methods: We assessed the vertical location of the malar prominence relative to other facial landmarks, determined consistency among individuals, and compared this with values used in artistry. Study population consisted of a convenience sample of 67 patients taken from an otolaryngology practice at a large urban medical center. Coordinates of the malar prominence were referenced to distinct facial landmarks from which the ratio of chin-to-malar prominence to chin-to-eye canthus was determined. Results: Average chin-to-malar prominence distance was 0.793 ± 0.023 (SD) of the chin-to-eye canthus distance. Variability due to the specific image chosen [coefficient of variation (CV) = 1.19%] and combined inter/intrareader variability (CV = 1.71%) validate the methodology. Variability among individuals (CV = 2.84%) indicates population consistency. No difference was found between gender and age groups or between whites and Hispanics. Individuals of other/unknown ethnicities were within the range common to whites and Hispanics. Our population’s value is not different from the value of 0.809 used in artistry, which is based on the Golden Ratio φ. Conclusions: The vertical position of the malar prominence is consistent among individuals, is clinically well-approximated by the value based on the Golden Ratio, and may be useful as a reference for surgical reconstruction or augmentation. PMID:26180712

  18. Immediate 3-dimensional ridge augmentation after extraction of periodontally hopeless tooth using chinblock graft

    PubMed Central

    Desai, Ankit; Thomas, Raison; A. Baron, Tarunkumar; Shah, Rucha; Mehta, Dhoom-Singh

    2015-01-01

    Background The aim of the present study was to evaluate clinically and radiographically, the efficacy of immediate ridge augmentation to reconstruct the vertical and horizontal dimensions at extraction sites of periodontally hopeless tooth using an autogenous chin block graft. Material and Methods A total of 11 patients (7 male & 4 female) with localized advanced bone loss around single rooted teeth having hopeless prognosis and indicated for extraction were selected for the study. The teeth were atraumatically extracted and deficient sites were augmented using autogenous chin block graft. Parameters like clinically soft tissue height - width and also radiographic ridge height -width were measured before and 6 months after augmentation. Obtained results were tabulated and analysed statistically. Results After 6 months of immediate ridge augmentation, the mean gain in radiographic vertical height and horizontal width was 7.64 + 1.47 mm (P = 0.005) and 5.28 + 0.46 mm (P = 0.007) respectively which was found to be statistically significant (P < 0.05). Mean change of width gain of 0.40mm and height loss of 0.40mm of soft tissue parameters, from the baseline till completion of the study at 6 months was observed. Conclusions The present study showed predictable immediate ridge augmentation with autogenous chin block graft at periodontally compromised extraction site. It can provide adequate hard and soft tissue foundation for perfect 3-Dimensional prosthetic positioning of implant in severely deficient ridges. Key words:Immediate ridge augmentation, periondontally hopeless tooth, autogenous chin graft, dental implant. PMID:26644832

  19. Acute arginine supplementation fails to improve muscle endurance or affect blood pressure responses to resistance training.

    PubMed

    Greer, Beau K; Jones, Brett T

    2011-07-01

    Dietary supplement companies claim that arginine supplements acutely enhance skeletal muscular endurance. The purpose of this study was to determine whether acute arginine α-ketoglutarate supplementation (AAKG) will affect local muscle endurance of the arm and shoulder girdle or the blood pressure (BP) response to anaerobic exercise. Twelve trained college-aged men (22.6 ± 3.8 years) performed 2 trials of exercise separated by at least 1 week. At 4 hours before, and 30 minutes before exercise, a serving of an AAKG supplement (3,700 mg arginine alpha-ketoglutarate per serving) or placebo was administered. Resting BP was assessed pre-exercise after 16 minutes of seated rest, and 5 and 10 minutes postexercise. Three sets each of chin-ups, reverse chin-ups, and push-ups were performed to exhaustion with 3 minutes of rest between each set. Data were analyzed using repeated-measures analysis of variance and paired t-tests. The AAKG supplementation did not improve muscle endurance or significantly affect the BP response to anaerobic work. Subjects performed fewer total chin-ups (23.75 ± 6.38 vs. 25.58 ± 7.18) and total trial repetitions (137.92 ± 28.18 vs. 141.08 ± 28.57) in the supplement trial (p ≤ 0.05). Subjects executed fewer reverse chin-ups (5.83 ± 1.85 vs. 6.75 ± 2.09) during set 2 after receiving the supplement as compared to the placebo (p < 0.05). Because AAKG supplementation may hinder muscular endurance, the use of these supplements before resistance training should be questioned. PMID:21399536

  20. [Progress of study on the demodex blepharitis].

    PubMed

    Zhang, X Y; Sun, X G

    2016-04-11

    Demodex blepharitis is an infectious ocular disease which is common, but always to be neglected. There were a few related reports about this disease in China. The pathogenic mechanism of demodex blepharitis is not clear at present. Literatures held different ideas about its diagnosis, therapeutic methods and curative effect. This review will summarize the new development of demodex blepharitis in order to provide references for its basic and clinical researches.(Chin J Ophthalmol, 2016, 52: 315-320). PMID:27094071

  1. Illusions in rhinoplasty.

    PubMed

    Younger, R A

    1999-08-01

    A good rhinoplasty surgeon attempts to enhance nasal performance through airway and appearance improvement. The great rhinoplasty surgeon routinely improves not only nasal performance but endeavors to achieve a higher level of overall facial aesthetic enhancement by manipulating the surgical illusions of the face. This cohesive interplay of science between the eyes, cheeks, nose, lips, and chin is known all to well by the master facial plastic surgeon who defines the art of rhinoplasty. PMID:10433660

  2. [The pros and cons of femtosecond laser-assisted cataract surgery].

    PubMed

    Li, Z H; Ye, Z

    2016-02-11

    Femtosecond laser-assisted cataract surgery (FLACS) is known as an innovative new technology. Compared with traditional surgical approach, FLACS is more accurate, more predictable and less energy used. However, in the current stage of development, there still may be intraoperative and postoperative complications, or even serious complications. FLACS has obvious advantages in certain surgical steps, but there are still clear disadvantages, so it still cannot completely replace the traditional phacoemulsification surgery. (Chin J Ophthalmol, 2016, 52: 89-92). PMID:26906702

  3. 42 CFR 84.110 - Gas masks; description.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... front-mounted or back-mounted gas mask: Acid gas 1,2,3 Ammonia Carbon monoxide Organic Vapor 1,2,3 Other... of acid gas, ammonia, carbon monoxide, and organic vapors. 1,2,3 Type of chin-style gas mask: Acid... or more of the above gases and vapors. 1,2,3 Type of escape gas mask: Acid gas 1,2,3,4 Ammonia...

  4. Double aneuploidy: partial trisomy 21 and XO/XXX in a family with 12/21 translocation.

    PubMed

    Chen, H; Tyrkus, M; Woolley, P V

    1978-09-01

    A female patient with mild mental retardation with spatial perceptual difficulties, microcephaly, depressed nasal root, receding chin, webbed neck, low hairline, shield chest, cubitus valgus, scoliosis and dermatoglyphic findings not characteristic of Down's syndrome is reported. In addition to X/XXX, she had a partial trisomy 21 of the short arm-centromere-proximal long arm segment due to maternal t(12;21) translocation. Two phenotypically normal siblings carried the balanced translocation. PMID:315194

  5. Condylar hyperplasia.

    PubMed

    Shankar, Uma; Chandra, Subhash; Raju, B H V Rama Krishnam; Anitha, G; Srikanth, K Venkata; Laheji, Afshan

    2012-01-01

    Condylar hyperplasia (CH), as the name suggests, affects mandibular condyle producing overgrowth of condyle, which is characterized by a slowly progressive, usually unilateral enlargement of the mandible, facial asymmetry and deviation of chin to the unaffected side. The condition is known to be self-limiting, usually begins around puberty, but may not be recognized until later in life. This paper reports a case of severe facial asymmetry secondary to CH, which was successfully treated by high condylectomy only. PMID:23404027

  6. Interorganizational health care systems implementations: an exploratory study of early electronic commerce initiatives.

    PubMed

    Payton, F C; Ginzberg, M J

    2001-01-01

    Changing business practices, customers needs, and market dynamics have driven many organizations to implement interorganizational systems (IOSs). IOSs have been successfully implemented in the banking, cotton, airline, and consumer-goods industries, and recently attention has turned to the health care industry. This article describes an exploratory study of health care IOS implementations based on the voluntary community health information network (CHIN) model. PMID:11293008

  7. Cryptanalysis of fair quantum blind signatures

    NASA Astrophysics Data System (ADS)

    He, Li-Bao; Huang, Liu-Sheng; Yang, Wei; Xu, Rui

    2012-03-01

    We investigate the fair quantum blind signature scheme proposed by Wang and Wen [Wang T Y and Wen Q Y 2010 Chin. Phys. B 19 060307], which uses the fundamental properties of quantum mechanics and the availability of a trusted arbitrator. However, in this paper, we find that the protocol cannot satisfy the property of non-forgeability even under the condition that the trusted arbitrator is totally credible. Moreover, a simple feasible suggestion for improving the protocol is proposed.

  8. Epidermal electronics for electromyography: An application to swallowing therapy.

    PubMed

    Constantinescu, Gabriela; Jeong, Jae-Woong; Li, Xinda; Scott, Dylan K; Jang, Kyung-In; Chung, Hyun-Joong; Rogers, John A; Rieger, Jana

    2016-08-01

    Head and neck cancer treatment alters the anatomy and physiology of patients. Resulting swallowing difficulties can lead to serious health concerns. Surface electromyography (sEMG) is used as an adjuvant to swallowing therapy exercises. sEMG signal collected from the area under the chin provides visual biofeedback from muscle contractions and is used to help patients perform exercises correctly. However, conventional sEMG adhesive pads are relatively thick and difficult to effectively adhere to a patient's altered chin anatomy, potentially leading to poor signal acquisition in this population. Here, the emerging technology of epidermal electronics is introduced, where ultra-thin geometry allows for close contouring of the chin. The two objectives of this study were to (1) assess the potential of epidermal electronics technology for use with swallowing therapy and (2) assess the significance of the reference electrode placement. This study showed comparative signals between the new epidermal sEMG patch and the conventional adhesive patches used by clinicians. Furthermore, an integrated reference yielded optimal signal for clinical use; this configuration was more robust to head movements than when an external reference was used. Improvements for future iterations of epidermal sEMG patches specific to day-to-day clinical use are suggested. PMID:27255865

  9. Facial profile changes with various orthodontic premolar extraction sequences during growth.

    PubMed

    Steyn, C L; Maritz, J S; du Preez, R J; Harris, A M P

    2004-05-01

    The Visual Treatment Objective (VTO) is an extremely valuable tool in the process of working out the treatment plan for the individual. This is especially true for the inexperienced operator. Often it becomes clear that extractions are indicated, but there remains uncertainty as to which teeth should be chosen for extractions to give the best results. As it is necessary to express the expected change in profile due to growth of the nose and also of the chin, VTO construction is helpful in determining the extraction decision. Clinical experience and research projects have indicated that the use of mean values has definite limitations when constructing a VTO for an individual. The primary objective of this investigation was to provide formulae by means of which anteroposterior changes in the facial profile of growing individuals for whom four premolar extraction treatment is proposed can be predicted with a greater measure of certainty. The records of 248 growing Caucasian orthodontic patients (120 males and 128 females) were selected and divided into Group 44 (four first premolar extractions), Group 45 (upper first premolar and lower second premolar extractions) and Group 55 (four second premolar extractions). Formulae are presented for the prediction of the amount of incisor retraction, anteroposterior nose growth and for chin growth. The formulae were derived by regression of incisor retraction, anteroposterior nose growth and chin growth on various predictors, and could be used in the construction of VTO's for selected cases. PMID:15279088

  10. Simultaneous implant placement with ridge augmentation using an autogenous bone ring transplant.

    PubMed

    Omara, M; Abdelwahed, N; Ahmed, M; Hindy, M

    2016-04-01

    The severely defective socket, in which implant placement within the remaining bone will result in a significantly off-axis implant position, precludes immediate implant placement and requires bone grafting as an initial surgical intervention. The aims of this study were to evaluate autogenous chin bone ring consolidation after the augmentation of severely defective sockets and the clinical application of these rings in the premolar-molar region with simultaneous implant placement in a one-stage procedure. Ten patients with 12 defective sockets were included. Sockets were prepared with a trephine bur. Bone rings with a tapped implant osteotomy were harvested from the chin with a larger trephine bur. Bone rings were fitted in the prepared sockets. An implant drill was used to prepare the bone apical to the ring through its central osteotomy. Implants were screwed through the rings and the apical bone. Patients were examined clinically and radiographically immediately and at 6 months postoperative. Crestal bone changes were measured and evaluated statistically. All grafted sockets showed bone healing with no significant crestal bone resorption and no infection; only one ring showed dehiscence, which healed during the follow-up period. All implants showed radiographic evidence of osseointegration. The autogenous chin bone ring augmentation technique was found to be a reliable alternative method for the management of severely defective sockets. PMID:26644216

  11. Estimation of Delta Wave by Mutual Information of Heartbeat During Sleep

    NASA Astrophysics Data System (ADS)

    Kurihara, Yosuke; Watanabe, Kajiro; Kobayashi, Kazuyuki; Tanaka, Hiroshi

    The quality of sleep is evaluated based on the sleep stages judged by R-K method or the manual of American Academy of Sleep Medicine. The brainwaves, eye movements, and chin EMG of sleeping subjects are used for the judgment. These methods above, however, require some electrodes to be attached to the head and the face to obtain the brainwaves, eye movements, and chin EMG, thus making the measurements troublesome to be held on a daily basis. If non-invasive measurements of brainwaves, eye movements, and chin EMG are feasible, or their equivalent data can be estimated through other bio-signals, the monitoring of the quality of daily sleeps, which influences the health condition, will be easy. In this paper, we discuss the appearance rate of delta wave occurrences, which is deeply related with the depth of sleep, can be estimated based on the average amount of mutual information calculated by pulse wave signals and body movements measured non-invasively by the pneumatic method. As a result, the root mean square error between the appearance rate of delta wave occurrences measured with a polysomnography and the estimated delta pulse was 14.93%.

  12. Effects of mop handle height on shoulder muscle activity and perceived exertion during floor mopping using a figure eight method

    PubMed Central

    WALLIUS, Mari-Anne; RISSANEN, Saara M.; BRAGGE, Timo; VARTIAINEN, Paavo; KARJALAINEN, Pasi A.; RÄSÄNEN, Kimmo; JÄRVELIN-PASANEN, Susanna

    2015-01-01

    The aim of this study was to investigate effects of mop handle height on electromyographic (EMG) activities of the shoulder muscles and perceived exertion for the shoulder area during floor mopping using a figure eight method. An experimental study with 13 cleaners was conducted using surface EMG and category ratio (CR-10) scale. EMG activity was recorded unilaterally from the upper trapezius, infraspinatus, anterior and middle deltoid muscles. Each subject performed four trials of mopping and each trial consisted of using a different mop handle height (mop adjustment at the level of shoulder, chin, nose and eye) in randomized order. EMG data were normalized to a percentage of maximal voluntary contraction (%MVC). The muscle activities were assessed by estimating the 10th, 50th and 90th percentiles of the amplitude probability distribution function (APDF) of the EMG signals and analysed by linear mixed model analysis. Results showed that shoulder muscle activity was significantly lower when the mop handle height was adjusted to shoulder level or chin level as compared to eye level. These findings were supported by subjective ratings of exertion. It seems that mop handle height adjustment between shoulder and chin level may be recommended as a basis for figure eight mopping. PMID:26423328

  13. Effects of mop handle height on shoulder muscle activity and perceived exertion during floor mopping using a figure eight method.

    PubMed

    Wallius, Mari-Anne; Rissanen, Saara M; Bragge, Timo; Vartiainen, Paavo; Karjalainen, Pasi A; Räsänen, Kimmo; Järvelin-Pasanen, Susanna

    2016-01-01

    The aim of this study was to investigate effects of mop handle height on electromyographic (EMG) activities of the shoulder muscles and perceived exertion for the shoulder area during floor mopping using a figure eight method. An experimental study with 13 cleaners was conducted using surface EMG and category ratio (CR-10) scale. EMG activity was recorded unilaterally from the upper trapezius, infraspinatus, anterior and middle deltoid muscles. Each subject performed four trials of mopping and each trial consisted of using a different mop handle height (mop adjustment at the level of shoulder, chin, nose and eye) in randomized order. EMG data were normalized to a percentage of maximal voluntary contraction (%MVC). The muscle activities were assessed by estimating the 10th, 50th and 90th percentiles of the amplitude probability distribution function (APDF) of the EMG signals and analysed by linear mixed model analysis. Results showed that shoulder muscle activity was significantly lower when the mop handle height was adjusted to shoulder level or chin level as compared to eye level. These findings were supported by subjective ratings of exertion. It seems that mop handle height adjustment between shoulder and chin level may be recommended as a basis for figure eight mopping. PMID:26423328

  14. Understanding the statistical persistence of dual-axis swallowing accelerometry signals.

    PubMed

    Sejdić, Ervin; Steele, Catriona M; Chau, Tom

    2010-01-01

    Swallowing accelerometry is a biomechanical approach for the assessment of difficulties during deglutition. However, the effects of various swallowing tasks and different anthropometric/demographic variables on the statistical behavior of these accelerometric signals are unknown. In particular, to understand the statistical persistence of these signals, we used detrended fluctuation analysis (DFA) to analyze accelerometric data collected from 408 healthy participants during dry, wet and wet chin tuck swallowing tasks. The results of DFA were then examined for potential influences of age, gender or body mass index. Several important conclusions were reached. First, the strongest persistence was observed for the wet chin tuck swallows. Second, the vibrations in the superior-inferior (S-I) direction generally have stronger temporal dependencies than those in the anterior-posterior (A-P) direction. Both of these phenomena can be attributed to the dominating influence of head movements on the amplitude of vibrations in the S-I direction. Third, gender, age and body mass index of the participants did not impact the observed persistence for dry and wet chin tuck swallows, while a gender effect was identified for wet swallows. In particular, male participants experienced more Brownian-like statistical dependencies in their swallowing signals. Future developments in the field should attempt to remove signal components associated with strong statistical persistence, as they tend to be associated with non-swallowing phenomena. PMID:21035113

  15. Brain activity varies with modulation of dynamic pitch variance in sentence melody.

    PubMed

    Meyer, Martin; Steinhauer, Karsten; Alter, Kai; Friederici, Angela D; von Cramon, D Yves

    2004-05-01

    Fourteen native speakers of German heard normal sentences, sentences which were either lacking dynamic pitch variation (flattened speech), or comprised of intonation contour exclusively (degraded speech). Participants were to listen carefully to the sentences and to perform a rehearsal task. Passive listening to flattened speech compared to normal speech produced strong brain responses in right cortical areas, particularly in the posterior superior temporal gyrus (pSTG). Passive listening to degraded speech compared to either normal or flattened speech particularly involved fronto-opercular and subcortical (Putamen, Caudate Nucleus) regions bilaterally. Additionally the Rolandic operculum (premotor cortex) in the right hemisphere subserved processing of neat sentence intonation. As a function of explicit rehearsing sentence intonation we found several activation foci in the left inferior frontal gyrus (Broca's area), the left inferior precentral sulcus, and the left Rolandic fissure. The data allow several suggestions: First, both flattened and degraded speech evoked differential brain responses in the pSTG, particularly in the planum temporale (PT) bilaterally indicating that this region mediates integration of slowly and rapidly changing acoustic cues during comprehension of spoken language. Second, the bilateral circuit active whilst participants receive degraded speech reflects general effort allocation. Third, the differential finding for passive perception and explicit rehearsal of intonation contour suggests a right fronto-lateral network for processing and a left fronto-lateral network for producing prosodic information. Finally, it appears that brain areas which subserve speech (frontal operculum) and premotor functions (Rolandic operculum) coincidently support the processing of intonation contour in spoken sentence comprehension. PMID:15068910

  16. Who Pioneered the Use of Antipsychotics in North America?

    PubMed Central

    Stip, Emmanuel

    2015-01-01

    Objective: Neuroleptics were introduced into North America 60 years ago. The credit for this advance is generally accorded to Heinz Lehmann. I sought to explore whether Lehmann really was the first North American psychiatrist to study the effects of chlorpromazine (CPZ) and to provide a more balanced view of its application in a clinical context. Method: I searched for historical documents and published articles in several libraries and interviewed psychiatrists active from 1952–1970. Results: The first article in English was published in the July volume of the Archives of Neurology and Psychiatry in 1954 (n = 71). Another article, written in French by Roland Saucier and published in a journal called Le Saguenay Médical, also described the effects of CPZ on a Canadian psychiatric population in August 1954 (n > 200). However, the first prescription for CPZ was written by Roland Saucier, who brought the product back from Paris after a fellowship there. Ruth Kajander, in Ontario, was also one of the first prescribers of this drug, following her study of its use in anesthesia and a publication in the proceedings of a symposium. Conclusion: The contents of the 2 naturalistic studies were compared. Lehmann’s study started 1 month before that of Saucier. Lehmann was the first North American psychiatrist to publish an article on CPZ, but Roland Saucier nevertheless made an important contribution, being the first to prescribe this drug in North America and reporting results for a study with a sample size 3 times that of Lehmann’s study. PMID:25886681

  17. Evaluation of Clear Sky Models for Satellite-Based Irradiance Estimates

    SciTech Connect

    Sengupta, M.; Gotseff, P.

    2013-12-01

    This report describes an intercomparison of three popular broadband clear sky solar irradiance model results with measured data, as well as satellite-based model clear sky results compared to measured clear sky data. The authors conclude that one of the popular clear sky models (the Bird clear sky model developed by Richard Bird and Roland Hulstrom) could serve as a more accurate replacement for current satellite-model clear sky estimations. Additionally, the analysis of the model results with respect to model input parameters indicates that rather than climatological, annual, or monthly mean input data, higher-time-resolution input parameters improve the general clear sky model performance.

  18. On the nature of the anti-tail of Comet Kohoutek /1973f/. I - A working model

    NASA Technical Reports Server (NTRS)

    Sekanina, Z.

    1974-01-01

    The model derived for the anti-tail of Comet Kohoutek describes it as a flat formation, confined essentially to the comet's orbit plane and composed of relatively heavy particles (mostly in the size range 0.1-1 mm) whose motions are controlled by solar gravity and solar radiation pressure. Almost all the material was produced by the comet before perihelion at a rate about an order of magnitude higher than for Comets Arend-Roland and Bennett. The latent heat of vaporization of the particle material is estimated at 40-45 kcal/mole or higher.

  19. Galaxy Velocity Dispersions Using a Cross-Correlation Method: Erratum

    NASA Astrophysics Data System (ADS)

    Dalle Ore, Cristina; Faber, S. M.; Gonzalez, J. Jesus; Stoughton, Roland; Burstein, David

    1991-07-01

    In the paper "Galaxy Velocity Dispersions Using a Cross-Correlation Method" by Cristina Dalle Ore, S. M. Faber, J. Jesus Gonzalez, Roland Stoughton, and David Burstein (ApJ, 366,38 [1991]), the following corrections should be made: 1. The full name of the third author is J. Jesus Gonzalez. 2. The last line of equation (3) should read: [(t x t)*v|d], instead of [(t x t) * v|]. 3. Line 7 of the second paragraph on page 40 should read "...matches the observed FWHM of t x g. Equation (3) is more..."

  20. A quasi-Newton acceleration for high-dimensional optimization algorithms

    PubMed Central

    Alexander, David; Lange, Kenneth

    2010-01-01

    In many statistical problems, maximum likelihood estimation by an EM or MM algorithm suffers from excruciatingly slow convergence. This tendency limits the application of these algorithms to modern high-dimensional problems in data mining, genomics, and imaging. Unfortunately, most existing acceleration techniques are ill-suited to complicated models involving large numbers of parameters. The squared iterative methods (SQUAREM) recently proposed by Varadhan and Roland constitute one notable exception. This paper presents a new quasi-Newton acceleration scheme that requires only modest increments in computation per iteration and overall storage and rivals or surpasses the performance of SQUAREM on several representative test problems. PMID:21359052

  1. Molecules and Clusters in Intense Laser Fields

    NASA Astrophysics Data System (ADS)

    Posthumus, Jan

    2009-09-01

    Preface; 1. Ultra-high intensity based on Ti:Sapphire Philip F. Taday and Andrew J. Langley; 2. Diatomic molecules in intense laser fields Jan H. Posthumus and James F. McCann; 3. Small polyatomic molecules in intense laser fields C. Cornaggia; 4. Coherent control in intense laser fields Eric Charron and Brian Sheehy; 5. Experimental studies of laser-heated rare gas clusters M. Lezius and M. Schmidt; 6. Single cluster explosions and high harmonic generation John W. G. Tisch and Emma Springate; 7. Intense laser interaction with extended cluster media Roland A. Smith and Todd Ditmire.

  2. Molecules and Clusters in Intense Laser Fields

    NASA Astrophysics Data System (ADS)

    Posthumus, Jan

    2001-06-01

    Preface; 1. Ultra-high intensity based on Ti:Sapphire Philip F. Taday and Andrew J. Langley; 2. Diatomic molecules in intense laser fields Jan H. Posthumus and James F. McCann; 3. Small polyatomic molecules in intense laser fields C. Cornaggia; 4. Coherent control in intense laser fields Eric Charron and Brian Sheehy; 5. Experimental studies of laser-heated rare gas clusters M. Lezius and M. Schmidt; 6. Single cluster explosions and high harmonic generation John W. G. Tisch and Emma Springate; 7. Intense laser interaction with extended cluster media Roland A. Smith and Todd Ditmire.

  3. Air resistance measurements on actual airplane parts

    NASA Technical Reports Server (NTRS)

    Weiselsberger, C

    1923-01-01

    For the calculation of the parasite resistance of an airplane, a knowledge of the resistance of the individual structural and accessory parts is necessary. The most reliable basis for this is given by tests with actual airplane parts at airspeeds which occur in practice. The data given here relate to the landing gear of a Siemanms-Schuckert DI airplane; the landing gear of a 'Luftfahrzeug-Gesellschaft' airplane (type Roland Dlla); landing gear of a 'Flugzeugbau Friedrichshafen' G airplane; a machine gun, and the exhaust manifold of a 269 HP engine.

  4. Astronomy-Connected Scientific Works in Early Transylvania and Banat

    NASA Astrophysics Data System (ADS)

    Farkas, Ladislau

    2008-09-01

    Baron Roland von Eötvös: physicist who demonstrated the proportionality of the inertial and gravitational mass and carried out research on the spatial changes in gravitation. Some of his experiments was made on the territory of Banat and Crisana (south-easter Transylvania). Count Luigi Ferdinando Marsigli: a very complex personality: engineer, diplomat, spy, scientist (geograph, historian, biologist, astronomer), who made the first astronomical observations in Banat and published them. Maximilian Hell: a mathematician and astronomer who founded the first astronomical observatory in Cluj and made observations on a very interesting natural phenomenon: the transit of the planet Venus.

  5. A soft-tissue cephalometric analysis and its use in orthodontic treatment planning. Part II.

    PubMed

    Holdaway, R A

    1984-04-01

    To summarize, the soft-tissue profile can vary in many ways and still be in balance and harmony. There is a wide range of acceptability regarding soft-tissue chin position in the profile. Both the lips and the chin should line up near the H line, but we need to look at the upper lip from a different perspective or in its relation to a line perpendicular to the Frankfort plane and tangent to the vermilion border to be certain that we are planning the best possible lip support for the case at hand. The H angle, allowing a few degrees for soft-tissue thickness variability, must increase as the basic skeletal convexity increases, and as the convexity increases, the lower incisors will need to be left farther forward than in a straight or concave skeletal profile. A thick integumental covering in the chin area can also effectively align the lower facial profile where lower incisors are farther forward than we are accustomed to seeing them. This principle can also be applied by surgically moving the bony chin forward until the three key soft-tissue points line up. Because there are wide variations in skeletal convexity, standardizing the position of the lower incisor to its apical base support as measured in the Frankfort mandibular incisor angle fails to recognize that upper incisors can be retracted too far, leaving a "streamlined" upper lip which is not esthetically pleasing. Locating the lower incisor in relation to the expected point A to pogonion line is somewhat better but still fails to recognize the wide range of variability in the thickness of the lips and soft-tissue chin. We must also guard against "dishing" those cases having good facial balance with quite normal skeletal convexity and only 5 mm or 6 mm of lower arch length discrepancy. Finally, it is completely practical as a treatment-planning procedure to approach the proposed orthodontic changes from a soft-tissue analysis perspective, making changes only to the point where the best possible soft

  6. Disrupted White Matter Network and Cognitive Decline in Type 2 Diabetes Patients.

    PubMed

    Zhang, Junying; Liu, Zhen; Li, Zixiao; Wang, Yunxia; Chen, Yaojing; Li, Xin; Chen, Kewei; Shu, Ni; Zhang, Zhanjun

    2016-05-01

    Type 2 diabetes mellitus is accompanied by cognitive impairment and is associated with an increased risk of dementia. Damage to brain structures such as white matter network disruption may underlie this cognitive disturbance. In the present study, 886 non-diabetic and 163 type 2 diabetic participants completed a battery of neuropsychological tests. Among them, 38 diabetic patients and 34 non-diabetic participants that matched the patients for age/sex/education received a magnetic resonance imaging-based diffusion tensor imaging. Then we calculated the topological properties of the white matter network using a graph theoretical method to investigate network efficiency differences between groups. We found that type 2 diabetic patients had inferior performances compared to the non-diabetic controls, in several cognitive domains involving executive function, spatial processing, memory, and attention. We also found that diabetic patients exhibited a disrupted topological organization of the white matter network (including the global network properties, i.e., network strength, global efficiency, local efficiency and shortest path length, and the nodal efficiency of the right rolandic operculum) in the brain. Moreover, those global network properties and the nodal efficiency of the right rolandic operculum both had positive correlations with executive function in the patient group. The results suggest that type 2 diabetes mellitus leads to an alteration in the topological organization of the cortical white matter network and this alteration may account for the observed cognitive decline. PMID:27163818

  7. Probing of structural relaxation times in the glassy state of sucrose and trehalose based on dynamical properties of two secondary relaxation processes

    SciTech Connect

    Kaminski, K.; Adrjanowicz, K.; Paluch, M.; Kaminska, E.

    2011-06-15

    Time-dependent isothermal dielectric measurements were carried out deeply in the glassy state on two very important saccharides: sucrose and trehalose. In both compounds two prominent secondary relaxation processes were identified. The faster one is an inherent feature of the whole family of carbohydrates. The slower one can also be detected in oligo- and polysaccharides. It was shown earlier that the {beta} process is the Johari-Goldstein (JG) relaxation coupled to motions of the glycosidic linkage, while the {gamma} relaxation originates from motions of the exocyclic hydroxymethyl unit. Recently, it was shown that the JG relaxation process can be used to determine structural relaxation times in the glassy state [R. Casalini and C. M. Roland, Phys. Rev. Lett. 102, 035701 (2009)]. In this paper we present the results of an analysis of the data obtained during aging using two independent approaches. The first was proposed by Casalini and Roland, and the second one is based on the variation of the dielectric strength of the secondary relaxation process during aging [J. K. Vij and G. Power, J. Non-Cryst. Solids 357, 783 (2011)]. Surprisingly, we found that the estimated structural relaxation times in the glassy state of both saccharides are almost the same, independent of the type of secondary mode. This finding calls into question the common view that secondary modes of intramolecular origin do not provide information about the dynamics of the glassy state.

  8. Can clinical and radiological findings predict surgery for lumbar disc herniation? A systematic literature review

    PubMed Central

    White, Andrew P.; Harrop, James; Dettori, Joseph R.

    2012-01-01

    Study design: Systematic review. Objective or clinical question: What clinical and radiological findings in patients with lumbar-herniated nucleus pulposus can serve as predictors of surgical intervention? Methods: Articles published between January 1975 and August 2011 were systematically reviewed using Pubmed, Cochrane, National Guideline Clearinghouse Databases, and bibliographies of key articles. Each article was subject to quality rating and was analyzed by two independent reviewers. Results: From 123 citations, 21 underwent full-text review. Four studies met inclusion criteria. Only baseline disability as measured by the Roland Disability Index (RDI) or the Oswestry Disability Index (ODI) was consistently associated with a greater likelihood of having discectomy surgery across multiple studies. With the current literature, we were not able to find an association between surgery and several characteristics including smoking status, body mass index, neurological deficit, positive straight leg testing, and level of herniation. Conclusions: From the limited data available, it appears that individual radiographic and clinical features are not able to predict the likelihood of surgical intervention. Higher baseline disability measurements (Oswestry and Roland) did correlate, however, with surgical treatment. PMID:23236305

  9. Epidemiological study of low back pain and occupational risk factors among taxi drivers.

    PubMed

    Miyamoto, Masabumi; Konno, Shunsuke; Gembun, Yoshikazu; Liu, Xinyu; Minami, Kazufumi; Ito, Hiromoto

    2008-04-01

    A survey of taxi drivers was conducted to determine the actual situation of drivers' low back pain (LBP). The survey was carried out in October 2002, the target drivers were asked to complete a questionnaire which contains questions regarding physique of drivers, demographic features, working conditions, office environment, health conditions, the presence of low back pain, the level of low back pain based on Visual Analogue Scale and Roland-Morris Disability Questionnaire score. As a result, the total number of valid responses was 1,334 and the response rate was 71 percent, and the 1-wk prevalence of LBP was 20.5 percent of respondents. Regarding 275 subjects with LBP, Visual Analogue Scale (VAS) averaged 4.3. There was a positive weak correlation between VAS and Roland-Morris Disability Questionnaire score (R=0.41). And Logistic regression analysis was performed to examine the relationship between LBP and occupational factors, the results suggested following items as risk factors; such as history of LBP, suffering from fatigue, diseases other than LBP and smoking habit. PMID:18413963

  10. An fMRI Study of Obesity, Food Reward, and Perceived Caloric Density: Does a Low-Fat Label Make Food Less Appealing?

    PubMed Central

    Ng, Janet; Stice, Eric; Yokum, Sonja; Bohon, Cara

    2011-01-01

    We tested the hypothesis that obese individuals experience greater activation of the gustatory and somatosensory cortex, but weaker activation of the striatum, in response to intake and anticipated intake of high-fat chocolate milkshake versus an isocaloric milkshake labeled low-fat and a tasteless solution using functional magnetic resonance imaging (fMRI) with 17 obese and 17 lean young women. Obese relative to lean women showed greater activation in somatosensory (Rolandic operculum), gustatory (frontal operculum), and reward valuation regions (amgydala, ventralmedial prefrontal cortex (vmPFC) in response to intake and anticipated intake of milkshake versus tasteless solution, though there was little evidence of reduced striatal activation. Obese relative to lean women also showed greater activation in the Rolandic operculum, frontal operculum, and vmPFC in response to isocaloric milkshakes labeled regular versus lowfat. Results suggest that hyper-responsivity of somatosensory, gustatory, and reward valuation regions may be related to overeating and that top-down processing influence reward encoding, which could further contribute to weight gain. PMID:21497628

  11. Cortical gamma-oscillations modulated by visuomotor tasks -Intracranial recording in patients with epilepsy-

    PubMed Central

    Nagasawa, Tetsuro; Rothermel, Robert; Juhász, Csaba; Nishida, Masaaki; Sood, Sandeep; Asano, Eishi

    2010-01-01

    SUMMARY We determined how visuomotor tasks modulated gamma-oscillations on electrocorticography in epileptic patients who underwent epilepsy surgery. Each visual-cue consisted of either a sentence or hand gesture instructing the subject to press or not to press the button. Regardless of the recorded hemisphere, viewing sentence and gesture cues elicited gamma-augmentation sequentially in the lateral-polar occipital and inferior occipital-temporal areas; subsequently, button-press movement elicited gamma-augmentation in the Rolandic area. The magnitudes of gamma-augmentation in the Rolandic and inferior occipital-temporal areas were larger when the hand contralateral to the recorded hemisphere was used for motor responses. A double dissociation was found in the left inferior occipital-temporal cortex in one subject; the lateral portion had greater gamma-augmentation elicited by a sentence-cue, whereas the medial portion had greater gamma-augmentation elicited by a gesture-cue. The present study has increased our understanding of the physiology of the human visuomotor system. PMID:20580900

  12. Voxel-Wise Meta-Analysis of Gray Matter Changes in Amyotrophic Lateral Sclerosis

    PubMed Central

    Shen, Dongchao; Cui, Liying; Fang, Jia; Cui, Bo; Li, Dawei; Tai, Hongfei

    2016-01-01

    Background: Increasing neuroimaging studies have revealed gray matter (GM) anomalies of several brain regions by voxel-based morphometry (VBM) studies in patients with amyotrophic lateral sclerosis (ALS). A voxel-wise meta-analysis was conducted to integrate the reported studies to determine the consistent GM alterations in ALS based on VBM methods. Methods: Ovid Medline, Pubmed, Emabase, and BrainMap database were searched for relevant studies.Data were extracted by two independent researchers. Voxel-wise meta-analysis was performed using the effect-size signed differential mapping (ES-SDM) software. Results: Twenty-nine VBM studies comprising 638 subjects with ALS and 622 healthy controls (HCs) met inclusion criteria.The global GM volumes of ALS patients were significantly decreased compared with those of HCs. GM reductions in patients were mainly located in the right precentral gyrus, the left Rolandic operculum, the left lenticular nucleus and the right anterior cingulate/paracingulate gyri. The right precentral gyrus and the left inferior frontal gyrus might be potential anatomical biomarkers to evaluate the severity of the disease, and longer disease duration was associated with more GM atrophy in the left frontal aslant tract and the right precentral gyrus in ALS patients. Conclusion: The results support that ALS is a complex degenerative disease involving multisystems besides the motor system.The mechanism of asymmetric atrophy of the motor cortex and the implication of Rolandic operculum involvement in ALS need to be further elucidated in future studies. PMID:27065078

  13. Dysfunction of the Heteromeric KV7.3/KV7.5 Potassium Channel is Associated with Autism Spectrum Disorders

    PubMed Central

    Gilling, Mette; Rasmussen, Hanne B.; Calloe, Kirstine; Sequeira, Ana F.; Baretto, Marta; Oliveira, Guiomar; Almeida, Joana; Lauritsen, Marlene B.; Ullmann, Reinhard; Boonen, Susanne E.; Brondum-Nielsen, Karen; Kalscheuer, Vera M.; Tümer, Zeynep; Vicente, Astrid M.; Schmitt, Nicole; Tommerup, Niels

    2012-01-01

    Heterozygous mutations in the KCNQ3 gene on chromosome 8q24 encoding the voltage-gated potassium channel KV7.3 subunit have previously been associated with rolandic epilepsy and idiopathic generalized epilepsy (IGE) including benign neonatal convulsions. We identified a de novo t(3;8) (q21;q24) translocation truncating KCNQ3 in a boy with childhood autism. In addition, we identified a c.1720C > T [p.P574S] nucleotide change in three unrelated individuals with childhood autism and no history of convulsions. This nucleotide change was previously reported in patients with rolandic epilepsy or IGE and has now been annotated as a very rare SNP (rs74582884) in dbSNP. The p.P574S KV7.3 variant significantly reduced potassium current amplitude in Xenopus laevis oocytes when co-expressed with KV7.5 but not with KV7.2 or KV7.4. The nucleotide change did not affect trafficking of heteromeric mutant KV7.3/2, KV7.3/4, or KV7.3/5 channels in HEK 293 cells or primary rat hippocampal neurons. Our results suggest that dysfunction of the heteromeric KV7.3/5 channel is implicated in the pathogenesis of some forms of autism spectrum disorders, epilepsy, and possibly other psychiatric disorders and therefore, KCNQ3 and KCNQ5 are suggested as candidate genes for these disorders. PMID:23596459

  14. Spatial alexia.

    PubMed

    Ardila, A; Rosselli, M

    1994-05-01

    Twenty-one patients with right hemisphere damage were studied (11 men, 10 women; average age = 41.33; range = 19-65). Patients were divided in two groups: pre-Rolandic (six patients) and retro-Rolandic (15 patients) right hemisphere damage. A special reading test was given to each patient. The observed errors included: literal errors (substitutions, additions, and omissions of letters), substitutions of syllables and pseudowords for meaningful words, left hemispatial neglect, confabulation, splitting of words, verbal errors (substitutions, additions, and omission of words), grouping of letters belonging to two different words, misuse of punctuation marks, and errors in following lines. It was proposed that spatial alexia is characterized by: (1) some difficulties in the recognition of the spatial orientation in letters; (2) left hemispatial neglect; (3) tendency to "complete" the sense of words and sentences; (4) inability to follow lines when reading texts, and sequentially explore the spatial distribution of the written material; and (5) grouping and fragmentation of words, most likely as a consequence of the inability to interpret the relative value of spaces between letters correctly. PMID:7960468

  15. Sensorimotor activation related to speaker vs. listener role during natural conversation

    PubMed Central

    Mandel, Anne; Bourguignon, Mathieu; Parkkonen, Lauri; Hari, Riitta

    2016-01-01

    Although the main function of speech is communication, the brain bases of speaking and listening are typically studied in single subjects, leaving unsettled how brain function supports interactive vocal exchange. Here we used whole-scalp magnetoencephalography (MEG) to monitor modulation of sensorimotor brain rhythms related to the speaker vs. listener roles during natural conversation. Nine dyads of healthy adults were recruited. The partners of a dyad were engaged in live conversations via an audio link while their brain activity was measured simultaneously in two separate MEG laboratories. The levels of ∼10-Hz and ∼20-Hz rolandic oscillations depended on the speaker vs. listener role. In the left rolandic cortex, these oscillations were consistently (by ∼20%) weaker during speaking than listening. At the turn changes in conversation, the level of the ∼10 Hz oscillations enhanced transiently around 1.0 or 2.3 s before the end of the partner’s turn. Our findings indicate left-hemisphere-dominant involvement of the sensorimotor cortex during own speech in natural conversation. The ∼10-Hz modulations could be related to preparation for starting one’s own turn, already before the partner’s turn has finished. PMID:26742643

  16. Eye-rima oris distance and its relation to the vertical dimension of occlusion measured by two methods: Anthropometric study in a sample of Yemeni dental students

    PubMed Central

    Alhajj, Mohammed Nasser; Khalifa, Nadia; Amran, Abdullah

    2016-01-01

    Objective: This study was conducted to evaluate the relationship between the distance measured from the distal outer of the eye to the parting line of the lips and the occlusal vertical dimension (OVD) measured by two methods. Methods: One hundred and fourteen dental students (76 males and 38 females) were recruited for this study with mean age (22.34 ± 1.83) years. The distance from distal canthus of the eye to rima oris (eye-RO) was compared with two different measurements of the OVD (nasal [N] to gnathion [Gn], and subnasal [Sn] to menton [Me]). All distances were measured using modified digital caliper. Results: Pearson correlation coefficient test for correlations and paired samples t-test for differences were used with a significant level of (P < 0.05). There was a positive significant correlation between the eye-RO distance and the two measurements of the OVD. However, this correlation was stronger between eye-RO and the distance from the tip of the nose to the tip of the chin than that between eye-RO and the distance from the septum of the nose to the under of the chin (r = 0.313 with P = 0.0007, r = 0.296 with P = 0.0014), respectively. Conclusion: The distance from the outer canthus of the eye to the parting of the lips seems to be a reliable method in predicting the OVD and should relate to the distance from the tip of the nose to the tip of the chin. PMID:27011736

  17. Functional foveae in an electrosensory system.

    PubMed

    Bacelo, Joao; Engelmann, Jacob; Hollmann, Michael; von der Emde, Gerhard; Grant, Kirsty

    2008-11-20

    Several species of Mormyrid weakly electric fish have a mobile chin protuberance that serves as a mobile antenna during prey detection, tracking behaviors, and foraging for food. It has been proposed that it constitutes a fovea of the electrosensory system. The distribution of the three types of receptor organs involved in active imaging of the local surroundings, prey detection, and passive electroreception, and their central projection to the electrosensory lobe (ELL), have been studied in Gnathonemus petersii. Density distributions were compared for different body regions. Primary afferent projections were labeled with biocytin or biotinylated dextrans. This showed that there is considerable central "over-representation" of the mandibular and nasal regions of the sensory surface involved in electrolocation, at the expense of the other body regions investigated. This over-representation is not a mere effect of the very high density of receptor organs in these areas, but is found to be due to central magnification. This magnification differs between the subclasses of electroreceptors, suggesting a functional segregation in the brain. We conclude that the chin protuberance and the nasal region are the regions of greatest sensitivity for the resistive, capacitive, and low-frequency characteristics of the environment, and are probably most important in prey detection, whereas other regions of the skin with a lesser resolution and sensitivity to phase distortion of the EOD, in particular the trunk, are probably designed for imaging larger, inanimate features of the environment. Our data support the hypothesis that the chin appendage and nasal region are functionally distinct electrosensory foveae. PMID:18803238

  18. ECBS & ICBS 2015 Joint Meeting: Bringing Chemistry to Life.

    PubMed

    Varon Silva, Daniel

    2016-03-15

    The European Chemical Biology Society (ECBS) and the International Chemical Biology Society (ICBS) recently organized a joint meeting in Berlin. This meeting had more than 250 participants. Four keynote lectures were given by Timothy Mitchison, David Tirrell, Carolyn Bertozzi and Jason Chin; in addition there were 13 invited speakers, 20 selected oral talks and 30 talks selected from 90 posters. The meeting was divided into six topics: chemoproteomics, epigenetics, conjugates for target delivering, anti-infectives, molecular imaging and probing the structure, and function of post-translational modifications. The highlights of the meeting are presented in this report. PMID:26710339

  19. [The immunomodulatory role of retinal microglial cells in age-related macular degeneration].

    PubMed

    Zhang, P F; Sun, X D

    2016-05-11

    Age-related macular degeneration (AMD) is one of the major causes of visual impairment in the elder population. Recent studies have revealed that retinal microgliacytes may play an important role in the pathogenesis of AMD, and the activation of retinal microglia could regulate the progress of AMD. The immunomodulatory role of retinal microglial cells is reviewed in this article, so as to investigate the mechanism and provide new insight for prevention and treatment of AMD.(Chin J Ophthalmol, 2016, 52: 386-390). PMID:27220713

  20. Deep-level diversity and leadership.

    PubMed

    Klein, Kristen M; Wang, Mo

    2010-12-01

    In the special issue on Diversity and Leadership (April 2010), the authors made a strong case for the importance of diversity in workplace leadership, rejected premature declarations that workplace discrimination is obsolete, and called for leadership theories that acknowledge and promote the value of diversity. We appreciate all authors' stressing that the glass ceiling still exists, not only for women but for other historically low-power groups as well. We also agree that modern theories of leadership can benefit immensely from increased participation by scholars and practitioners who are not Western, White, upper-class men (Chin, 2010). PMID:21133527

  1. Hypersonic airbreathing missile concepts under study at NASA Langley Research Center

    NASA Technical Reports Server (NTRS)

    Hunt, J. L.; Johnston, P. J.; Cubbage, J. M.; Dillon, J. L.; Richie, C. B.; Marcum, D. C., Jr.; Carlson, C. H.

    1982-01-01

    The design and performance of several tactical and strategic hypersonic airbreathing missile concepts under study at the NASA Langley Research Center are discussed from an evolutionary perspective. A mid- and chin inlet missile design, constrained to the Navy's vertical box launcher, was investigated; a performance comparison is presented that is favorable to the mid-inlet approach. Parasol wing, confined flow field, and spatula-like cruise missile configurations were examined with strategic applications in mind. The preliminary results are encouraging with respect to aerodynamic and volumetric efficiency and choice of engine integration schemes.

  2. [Surgical strategy for neck burns and their sequelae].

    PubMed

    Pradier, J-P; Duhamel, P; Brachet, M; Dantzer, E; Vourey, G; Bey, E

    2011-10-01

    Burns of the neck are common and expose them to functional and aesthetic complications which are sometimes very serious. Care in the acute stage and treatment of sequelae contribute to a common goal of restoration: Maintain or recreate a chin-neck angle and get a quality skin as close as possible to the original skin, in terms of flexibility, texture, thickness and color. The wide variety of cases encountered requires knowing the armamentarium available to us today, and the anatomical basis and clinical underlying indications. PMID:21899941

  3. Do you know this syndrome?*

    PubMed Central

    Gontijo, Gabriela Maria Abreu

    2013-01-01

    The Bourneville-Pringle syndrome is an autosomal dominant neurocutaneous disorder characterized by the development of multiple hamartomas in various systems, especially brain, skin, retina, kidney, heart and lung. The case of a patient with brownish plaques on the forehead and temporal region, pink malar and chin papules, and hypopigmented macules on the back and trunk is described. The diagnosis of the Bourneville-Pringle syndrome is based on clinical criteria. Presence of two major criteria, such as facial angiofibromas, forehead fibrous plaques, three or more hypomelanotic macules establish the definitive diagnosis. The diagnosis should be made as early as possible in order to assess and treat the associated complications. PMID:23739690

  4. Comparison of eye movements over faces in photographic positives and negatives.

    PubMed

    Luria, S M; Strauss, M S

    1978-01-01

    Eye movements were recorded while subjects viewed ordinary portraits and photographic negatives of those portraits. Under both conditions they first studied sixteen portraits and then tried to decide which of forty-eight portraits they had just seen. They made more errors of recognition while viewing negatives, and their fixation patterns were significantly altered: there was a decrease in the percentage of fixations directed to the eyes, nose, and mouth, and an increase for such details as the ears, cheeks, chin, cap, and necktie. There was also a decrease in the ratio of fixations to the most fixated detail compared to the least fixated detail. PMID:693234

  5. Comparison of eye movements over faces in photographic positives and negatives.

    PubMed

    Luria, Saul M; Strauss, Mark S

    2013-01-01

    Eye movements were recorded while subjects viewed ordinary portraits and photographic negatives of those portraits. Under both conditions they first studied sixteen portraits and then tried to decide which of forty-eight portraits they had just seen. They made more errors of recognition while viewing negatives, and their fixation patterns were significantly altered: there was a decrease in the percentage of fixations directed to the eyes, nose, and mouth, and an increase for such details as the ears, cheeks, chin, cap, and necktie. There was also a decrease in the ratio of fixations to the most fixated detail compared to the least fixated detail. PMID:24601026

  6. PubMed Central

    ALDIANO, C.; PENTENERO, M.; BERRONE, S.

    2015-01-01

    SUMMARY This study describes an unusual case of mandibular asymmetry after fibula free flap reconstruction in a young man following major facial trauma that was corrected using a custom-made polyetheretherketone prosthesis. There is little information in the literature on the use of alloplasts to correct mandibular asymmetry as interest in 'aesthetic re-modelling' has traditionally focused on nasal, zygomatic and chin regions. This report demonstrates that this technique can be used successfully to address selected cases of mandibular asymmetry. PMID:26824216

  7. A New Brace for Maintaining the Neck in a Suitable Position Following Tracheal Reconstruction

    PubMed Central

    Ziaian, Bizhan; Foroutan, Ali; Tahamtan, Maryam; Moslemi, Sam

    2014-01-01

    Segmental resection and end-to-end anastomosis is the treatment of choice for patients suffering from tracheal stenosis for whom conservative management is not planned. A complication of this procedure is tension-induced anastomotic failure. To prevent this complication, maintaining the neck in full flexion by means of a suture between the chin and upper chest is a traditional approach. We have designed a new brace (Shiraz brace) that securely supports the neck in this position and decreases the bothersome use of the suture alone. PMID:24850991

  8. A new brace for maintaining the neck in a suitable position following tracheal reconstruction.

    PubMed

    Ziaian, Bizhan; Foroutan, Ali; Tahamtan, Maryam; Moslemi, Sam

    2014-05-01

    Segmental resection and end-to-end anastomosis is the treatment of choice for patients suffering from tracheal stenosis for whom conservative management is not planned. A complication of this procedure is tension-induced anastomotic failure. To prevent this complication, maintaining the neck in full flexion by means of a suture between the chin and upper chest is a traditional approach. We have designed a new brace (Shiraz brace) that securely supports the neck in this position and decreases the bothersome use of the suture alone. PMID:24850991

  9. [Research advances of retinal nerve fiber layer thickness and its association with myopia].

    PubMed

    Kang, M T; Ran, A R; Wang, N L; Li, S M

    2016-05-11

    Recently, the distribution characteristics of retinal nerve fiber layer thickness in myopic population have raised scholars' attention. The retinal nerve fiber layer thickness is varied with different refractive statuses, and is correlated to many factors like age, eye elongation, and fundus changes. Further exploration of the relationship between myopia and retinal structure and function will promote our understanding and knowledge of the pathogenesis of myopia. The article reviews the structure characteristics of the retinal nerve fiber layer, its associations with demographic characteristics, its characteristics in myopia, and the structural-functional relationship.(Chin J Ophthalmol, 2016, 52: 396-400). PMID:27220715

  10. Atypical rosacea in a male patient: case study.

    PubMed

    Debroy Kidambi, A; Tiffin, N J; Ramsay, H M

    2016-01-01

    Rosacea fulminans is a rare disorder of unknown cause, almost exclusively affecting women. There are only a few reported cases in men. The condition is characterized by the abrupt onset of pustules and nodules predominantly affecting the cheeks or chin without any systemic upset. We report the case of a 37-year-old man who presented with papulopustules, predominantly localized to his nose. Histopathological features were consistent with rosacea fulminans. The patient was managed with treatments including oral prednisolone, isotretinoin, and trimethioprim. PMID:27267199

  11. Revisiting Deng et al.'s Multiparty Quantum Secret Sharing Protocol

    NASA Astrophysics Data System (ADS)

    Hwang, Tzonelih; Hwang, Cheng-Chieh; Yang, Chun-Wei; Li, Chuan-Ming

    2011-09-01

    The multiparty quantum secret sharing protocol [Deng et al. in Chin. Phys. Lett. 23: 1084-1087, 2006] is revisited in this study. It is found that the performance of Deng et al.'s protocol can be much improved by using the techniques of block-transmission and decoy single photons. As a result, the qubit efficiency is improved 2.4 times and only one classical communication, a public discussion, and two quantum communications between each agent and the secret holder are needed rather than n classical communications, n public discussions, and 3n/2 quantum communications required in the original scheme.

  12. Congenital muscular torticollis.

    PubMed

    Nilesh, Kumar; Mukherji, Srijon

    2013-07-01

    Congenital muscular torticollis (CMT) is a rare congenital musculoskeletal disorder characterized by unilateral shortening of the sternocleidomastoid muscle (SCM). It presents in newborn infants or young children with reported incidence ranging from 0.3% to 2%. Owing to effective shortening of SCM on the involved side there is ipsilateral head tilt and contralateral rotation of the face and chin. This article reports a case of CMT in a 3½-year-old male child successfully managed by surgical release of the involved SCM followed by physiotherapy. PMID:24205484

  13. Neutrino Tunneling from NUT Kerr Newman de Sitter Black Hole

    NASA Astrophysics Data System (ADS)

    Yang, Nan; Yang, Juan; Li, Jin

    2013-08-01

    In this paper, the method of semi-classical is applied to explore the Hawking radiation of a NUT-Kerr-Newman de Sitter Black Hole from tunneling point of view. The Hamilton-Jacobi equation in NUT-Kerr-Newman de Sitter space time is derived by the method presented by Lin and Yang (Chin. Phys. B, 20:110403, 2011). We obtain the Hawking temperatures at the event horizon and cosmological horizon and we also obtain the tunneling probability of neutrino following the semi-classical quantum equation. The results show the common features of NUT-Kerr-Newman de Sitter Black Hole.

  14. All-on-4 concept implantation for mandibular rehabilitation of an edentulous patient with Parkinson disease: A clinical report.

    PubMed

    Liu, Fang-Chun; Su, Wei-Chia; You, Chia-Hsun; Wu, Aaron Yu-Jen

    2015-12-01

    Parkinson disease (PD) is a progressive neurologic disorder. Compromised voluntary and involuntary muscle control of the orofacial-pharyngeal muscles of patients with PD may lead to difficulty in mastication, dysphagia, and tremor of the mouth and chin. All of these problems represent major challenges for the clinician with respect to the oral rehabilitation. This clinical report describes the use of the All-on-4 concept implantation for mandibular rehabilitation with a fixed detachable dental prosthesis in an edentulous patient with PD. The treatment steps, outcome, and limitations are discussed. PMID:26409584

  15. ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS: Alternative Scheme for Generation of Atomic Schrödinger Cat States and Entangled Coherent States in an Optical Cavity

    NASA Astrophysics Data System (ADS)

    Lin, Xiu

    2010-05-01

    We propose an alternative scheme for generation of atomic Schrödinger cat states in an optical cavity. In the scheme the atoms are always populated in the two ground states and the cavity remains in the vacuum state. Therefore, the scheme is insensitive to the atomic spontaneous emission and cavity decay. The scheme may be generalized to the deterministic generation of entangled coherent states for two atomic samples. In contrast with the previously proposed schemes of [Commun. Theor. Phys. 40 (2003) 103 and Chin. Phys. B 18 (2009) 1045], the required interaction time in our scheme is greatly shortened and thus the decoherence can be effectively suppressed.

  16. Practical lessons in remote connectivity.

    PubMed Central

    Kouroubali, A.; Starren, J.; Barrows, R. C.; Clayton, P. D.

    1997-01-01

    Community Health Information Networks (CHINs) require the ability to provide computer network connections to many remote sites. During the implementation of the Washington Heights and Inwood Community Health Management Information System (WHICHIS) at the Columbia-Presbyterian Medical Center (CPMC), a number of remote connectivity issues have been encountered. Both technical and non-technical issues were significant during the installation. We developed a work-flow model for this process which may be helpful to any health care institution attempting to provide seamless remote connectivity. This model is presented and implementation lessons are discussed. PMID:9357643

  17. Chemical composition effects on the crazing of PS-PMMA block copolymers

    NASA Astrophysics Data System (ADS)

    Kim, Won; Han, Junwon; Yang, Hoichang; Ryu, Chang

    2006-03-01

    Using a large scale separation technique adopting interaction chromatography, we have fractionated as-synthesized PS-PMMA block copolymers in terms of the average chemical composition difference, while maintaining the same average molecular weight. Copper grid technique with optical, atomic force and transmission electron microscopy has been employed for the fracture study to reveal how the composition-dependent morphology affect the crazing of the glassy-glassy block copolymers, while maintaining the same level of Chi*N. In addition, we study how the thermal annealing affects the median strains for crazing and catastrophic failure.

  18. Paraliparis hawaiiensis, a new species of snailfish (Scorpaeniformes: Liparidae) and the first described from the Hawaiian Archipelago.

    PubMed

    Stein, D L; Drazen, J C

    2014-05-01

    Paraliparis hawaiiensis n.sp. is described from the north-western Hawaiian Islands from two specimens collected at 2196 and 3055 m. It differs from other North Pacific Ocean species in its chin pore arrangement, tooth pattern and body proportions. Although liparid specimens have previously been collected from Hawaii, they were undescribed and are now lost. Therefore, this is the first liparid species described from the archipelago. In situ photographs of Hawaiian snailfishes are also shown and discussed here. PMID:24697612

  19. Nonadiabatic production of spinor condensates with a QUIC trap

    NASA Astrophysics Data System (ADS)

    Zhang, Peng; Xu, Zhan; You, Li

    2006-05-01

    A recent experiment [Xiu-Quan Ma et al., Chin. Phys. Lett. 22, 1106 (2005)] reported the observation of a multi-component spinor condensate when the magnetic field of a QUIC trap containing a spin polarized condensate was switched off. Our theoretical study show that this phenomena can be described within a general framework of the nonadiabatic Landau-Zener transition theory. We will discuss the population transfers at the zero field level crossing for this interesting case involving more than two levels, and provide a detailed understanding of the relevant nonadiabatic behavior.

  20. Determination of hydraulic characteristics and yield of aquifers underlying Vekol Valley, Arizona, using several classical and current methods

    USGS Publications Warehouse

    Marie, James R.; Hollett, Kenneth J.

    1996-01-01

    Investigations were conducted in Arizona during the early 1980's to obtain hydrologic data in order to deliver 30,000 acre-feet of water annually to the Ak-Chin Indian Reservation. A recharge experiment produced infiltration rates for an ephemeral stream channel that ranged from 0.64 to 1.09 cubic feet per second per 1,000 feet of channel length. Water moved vertically through the 330-foot-thick unsaturated zone to the water table in less than 5 days.

  1. Body sculpture: the words become reality.

    PubMed

    Budo, J A

    1996-01-01

    The last decade has been marked by the development of liposuction. A better knowledge of the anatomy of fat tissue, together with an improvement in different devices, has made our results more predictable. However, such areas as the chin, anterior and inner thigh, and knee have remained "difficult." This is especially true when large volumes of fat need to be removed. Blood loss has remained a problem as well. The development of ultrasound (U.S.) liposuction is a big step toward even more predictable results and to where blood loss can be negligible. PMID:8929325

  2. A Dysmorphic Child with a Pericentric Inversion of Chromosome 8

    PubMed Central

    Ananthapur, Venkateshwari; Avvari, Srilekha; Madireddi, Sujatha; Nallari, Pratibha; Akka, Jyothy

    2012-01-01

    An 8-year-old boy was referred to our institute with dysmorphic features such as mild lupus, micrognathia, low hair line, hypoplasia, hemi atrophy of left side of the face, abnormal size of ears, hypothenar, hypoplasia of chin, and tongue tie. MRI scan was found to be normal and EEG suggestive of generalized seizure disorder. Cytogenetic evaluation of the proband revealed a pericentric inversion of chromosome 8 with 46, XY, and inv 8 (p11.2; q21.2) karyotype. PMID:22606536

  3. A dysmorphic child with a pericentric inversion of chromosome 8.

    PubMed

    Ananthapur, Venkateshwari; Avvari, Srilekha; Madireddi, Sujatha; Nallari, Pratibha; Akka, Jyothy

    2012-01-01

    An 8-year-old boy was referred to our institute with dysmorphic features such as mild lupus, micrognathia, low hair line, hypoplasia, hemi atrophy of left side of the face, abnormal size of ears, hypothenar, hypoplasia of chin, and tongue tie. MRI scan was found to be normal and EEG suggestive of generalized seizure disorder. Cytogenetic evaluation of the proband revealed a pericentric inversion of chromosome 8 with 46, XY, and inv 8 (p11.2; q21.2) karyotype. PMID:22606536

  4. [When and how to perform the superior oblique tucking surgery].

    PubMed

    Zhang, W

    2016-08-01

    Either superior oblique weakening or strengthening surgery is the most complicated and most difficult to perform in the field of strabismus surgery. The effect of superior oblique surgery is also unpredictable. In addition, improper superior oblique strengthening surgery may produce limited elevation in adduction (iatrogenic Brown syndrome). In this article, we reviewed the history of superior oblique surgery, especially on when and how to perform the superior oblique strengthening surgery for providing reference to the clinicians in the field of strabismus and pediatric ophthalmology. (Chin J Ophthalmol, 2016, 52: 565-567). PMID:27562275

  5. Congenital muscular torticollis

    PubMed Central

    Nilesh, Kumar; Mukherji, Srijon

    2013-01-01

    Congenital muscular torticollis (CMT) is a rare congenital musculoskeletal disorder characterized by unilateral shortening of the sternocleidomastoid muscle (SCM). It presents in newborn infants or young children with reported incidence ranging from 0.3% to 2%. Owing to effective shortening of SCM on the involved side there is ipsilateral head tilt and contralateral rotation of the face and chin. This article reports a case of CMT in a 3½-year-old male child successfully managed by surgical release of the involved SCM followed by physiotherapy. PMID:24205484

  6. Maritime Aerosol Network (MAN) as a Component of AERONET

    NASA Technical Reports Server (NTRS)

    Smirnov, A.; Holben, B. N.; Slutsker, I.; Giles, D. M.; McClain, C. R.; Eck, T. F.; Sakerin, S. M.; Macke, A.; Croot, P.; Zibordi, G.; Quinn, P. K.

    2008-01-01

    The World Ocean produces a large amount of natural aerosols that have all impact on the Earth's albedo and climate. Sea-salt is the major contributor to aerosol optical depth over the oceans. [Mahowald et al. 2006; Chin et al. 2002; Satheesh et al. 1999; Winter and Chylek, 1997] and therefore affects the radiative balance over the ocean through the direct [Haywood et al. 1999] and indirect aerosol effect [O'Dowd et al. 1999]. Aerosols over the oceans (produced marine and advected from land sources) are important for various atmospheric processes [Lewis and Schwartz, 2004] and remote sensing studies [Gordon, 1997].

  7. Twelve months of experience with Bioplastique.

    PubMed

    Mladick, R A

    1992-01-01

    Over a 12-month period, 40 patients were treated for various facial defects using a new, injectable microimplant material--Bioplastique. Areas treated included cheeks, chins, lips, nasolabial lines, nasoglabellar lines, infraoral lines, noses, and miscellaneous depressions. Patients were observed for overcorrection, inflammation, morbidity, allergic reaction, or other complications. Both patient and physician satisfaction were recorded. Use of Bioplastique was found to offer permanent results by means of a quick, simple procedure administered under local anesthesia without scarring. With proper training and a good "eye," subtle corrections are possible. The author anticipates wide application of Bioplastique for the treatment of numerous soft tissue deficiencies. PMID:1734634

  8. Cryptanalysis and Improvement on "Robust EPR-Pairs-Based Quantum Secure Communication with Authentication Resisting Collective Noise"

    NASA Astrophysics Data System (ADS)

    Yue, Qiu-Ling; Yu, Chao-Hua; Liu, Bin; Wang, Qing-Le

    2016-05-01

    Recently, Chang et al. [Sci Chin-Phys Mech Astron. 57(10), 1907-1912, 2014] proposed two robust quantum secure communication protocols with authentication based on Einstein-Podolsky-Rosen (EPR) pairs, which can resist collective noise. In this paper, we analyze the security of their protocols, and show that there is a kind of security flaw in their protocols. By a kind of impersonation attack, the eavesdropper can obtain half of the message on average. Furthermore, an improved method of their protocols is proposed to close the security loophole.

  9. Surgical orthodontic correction of mandibular laterognathism

    PubMed Central

    Singh, Harpreet; Srivastava, Dhirendra; Kapoor, Pranav; Sharma, Poonam

    2016-01-01

    This case report describes the successful treatment of a patient with mandibular laterognathism and associated facial asymmetry with combined surgical orthodontic approach. After 7 months of presurgical orthodontic treatment, intraoral vertical ramus osteotomy, and straightening genioplasty were performed as two step surgeries to reposition the deviated mandible and chin, respectively. The total active treatment period was 14 months. After surgical orthodontic treatment, significant improvement in occlusion, masticatory function, and facial appearance was discernible. Posttreatment records at 3 years showed stable results with good occlusion. PMID:27127755

  10. An Apparently Classical Case Report of Sturge-Weber Syndrome.

    PubMed

    Giannantoni, Nadia Mariagrazia; Della Marca, Giacomo; Vollono, Catello

    2015-10-01

    Sturge-Weber syndrome is a rare, sporadic, congenital neurocutaneous syndrome, likely due to abnormal development of the cephalic microvasculature. Symptoms and signs depend on the extent and location of the venous dysplasia. We describe a case of a 33-year-old woman presenting with drug-resistant epilepsy, chronic headache, and recurring nonepileptic seizures. Computed tomography and magnetic resonance imaging scans showed severe frontoparietal right hemisphere atrophy, prevalent right frontoparietal leptomeningeal enhancement, circumscribed angioma of the left rolandic sulcus, and prominent deep venous system. We report an apparently classical Sturge-Weber syndrome and hypothesize a shared pathophysiologic mechanism for clinical symptoms. We speculate that all the main symptoms observed in our patient could be the expression of a functional imbalance between the atrophic right hemisphere and the hyperexcitable left cortex. PMID:25392004

  11. [Adélaïde Hautval (1906-1988): An exemplary medical personality].

    PubMed

    Halioua, Bruno; Hauptmann, Georges

    2015-12-01

    Adélaïde Hautval (1906-1988), psychiatrist, was arrested in April 1942 having defended a Jewish family abused by German soldiers. She was imprisoned in Bourges and in several camps in France (Pithiviers, Beaune-la-Rolande, Orléans, Romainville) before being deported as a "Friend of the Jews" at Auschwitz in the convoy of 23 January 1943, said 31,000 convoy with 229 other resistant women, Marie-Claude Vaillant-Couturier, Charlotte Delbo, Danielle Casanova. She refused to participate in the "medical" experience of Nazi doctors Clauberg, Schumann, Wirths and Mengele at Birkenau. She was then deported to Ravensbrück. During her deportation, she illustrated her dedication in the medical management of the deportees. She testified repeatedly on her experience of remote doctor. Hautval Adélaïde was the first French woman doctor named Righteous among the Nations in 1965. PMID:26411305

  12. At Home in the Universe

    NASA Astrophysics Data System (ADS)

    Wheeler, John A.

    Colleague and confidant of Einstein and Bohr and pioneer of nuclear fission -- John A. Wheeler is one of our most original and profound thinkers. In engaging essays formed of reminiscence, science, and conjecture, Wheeler writes of debates and discussions with Bohr, long talks with Einstein in his study at Princeton, and the eloquence and nobility of Hermann Weyl. With simple delight in "the machinery of existence" Wheeler exudes an enthusiasm that illuminates this collection. John Wheeler is one of the 20th century's most notable nuclear physicists and relativity theorists. In addition, he has played a leading role in research on pulsars, black holes, and nuclear reactor safety. Dr. Wheeler is Jan and Roland Blumberg Professor Emeritus at the University of Texas, Austin and Joseph Henry Professor of Physics Emeritus at Princeton University.

  13. [Verbal auditory agnosia: SPECT study of the brain].

    PubMed

    Carmona, C; Casado, I; Fernández-Rojas, J; Garín, J; Rayo, J I

    1995-01-01

    Verbal auditory agnosia are rare in clinical practice. Clinically, it characterized by impairment of comprehension and repetition of speech but reading, writing, and spontaneous speech are preserved. So it is distinguished from generalized auditory agnosia by the preserved ability to recognize non verbal sounds. We present the clinical picture of a forty-years-old, right handed woman who developed verbal auditory agnosic after an bilateral temporal ischemic infarcts due to atrial fibrillation by dilated cardiomyopathie. Neurophysiological studies by pure tone threshold audiometry: brainstem auditory evoked potentials and cortical auditory evoked potentials showed sparing of peripheral hearing and intact auditory pathway in brainstem but impaired cortical responses. Cranial CT-SCAN revealed two large hypodenses area involving both cortico-subcortical temporal lobes. Cerebral SPECT using 99mTc-HMPAO as radiotracer showed hypoperfusion just posterior in both frontal lobes nect to Roland's fissure and at level of bitemporal lobes just anterior to Sylvian's fissure. PMID:8556589

  14. Hydrodynamic simulations of microjetting from shock-loaded grooves

    NASA Astrophysics Data System (ADS)

    Roland, Caroline; de Resseguier, Thibaut; Sollier, Arnaud; Lescoute, Emilien; Soulard, Laurent; Loison, Didier

    2015-06-01

    The interaction of a shock wave with a free surface presenting geometrical defects, such as cavities or grooves, may lead to the ejection of micrometric debris at velocities of km/s order. This process can be involved in many applications, like pyrotechnics or industrial safety. Laser shock experiments reported in this conference (T. de Resseguier, C. Roland et al., abstract ref.000066) provide insight into jet formation and peak velocities for various groove angles and shock pressures. Here, we present hydrodynamic simulations of these experiments, in both 2D and 3D geometries, using both finite element method and smoothed particles hydrodynamics. Numerical results are compared to several theoretical predictions including the Richtmyer-Meshkov instabilities. The role of the elastic-plastic behavior on jet formation is investigated. Finally, the possibility to simulate the late stages of jet expansion and fragmentation is explored, to evaluate the mass distribution of the ejecta and their ballistic properties, still essentially unknown in the experiments.

  15. Airborne Wind Shear Detection and Warning Systems. Fourth Combined Manufacturers' and Technologists' Conference, part 2

    NASA Technical Reports Server (NTRS)

    Vicroy, Dan D. (Compiler); Bowles, Roland L. (Compiler); Passman, Robert H. (Compiler)

    1992-01-01

    The Fourth Combined Manufacturers' and Technologists' Conference was hosted jointly by NASA Langley Research Center (LaRC) and the Federal Aviation Administration (FAA) in Williamsburg, Virginia, on April 14-16, 1992. The meeting was co-chaired by Dr. Roland Bowles of LaRC and Bob Passman of the FAA. The purpose of the meeting was to transfer significant ongoing results of the NASA/FAA Joint Airborne Wind Shear Program to the technical industry and to pose problems of current concern to the combined group. It also provided a forum for manufacturers to review forward-look technology concepts and for technologists to gain an understanding of the problems encountered by the manufacturers during the development of airborne equipment and the FAA certification requirements. The present document has been compiled to record the essence of the technology updates and discussions which follow each.

  16. Neural mechanisms underlying auditory feedback control of speech

    PubMed Central

    Reilly, Kevin J.; Guenther, Frank H.

    2013-01-01

    The neural substrates underlying auditory feedback control of speech were investigated using a combination of functional magnetic resonance imaging (fMRI) and computational modeling. Neural responses were measured while subjects spoke monosyllabic words under two conditions: (i) normal auditory feedback of their speech, and (ii) auditory feedback in which the first formant frequency of their speech was unexpectedly shifted in real time. Acoustic measurements showed compensation to the shift within approximately 135 ms of onset. Neuroimaging revealed increased activity in bilateral superior temporal cortex during shifted feedback, indicative of neurons coding mismatches between expected and actual auditory signals, as well as right prefrontal and Rolandic cortical activity. Structural equation modeling revealed increased influence of bilateral auditory cortical areas on right frontal areas during shifted speech, indicating that projections from auditory error cells in posterior superior temporal cortex to motor correction cells in right frontal cortex mediate auditory feedback control of speech. PMID:18035557

  17. Benign nocturnal alternating hemiplegia of childhood: two cases with positive evolution.

    PubMed

    Villéga, Frédéric; Picard, Fabienne; Espil-Taris, Caroline; Husson, Marie; Michel, Véronique; Pedespan, Jean-Michel

    2011-06-01

    Benign nocturnal alternating hemiplegia (BNAH) of childhood is distinct from the classic form of malignant alternating hemiplegia of childhood [1]. It is characterized by hemiplegic attacks occurring exclusively during sleep [2]. It can be misdiagnosed as migraine, nocturnal frontal lobe epilepsy, benign rolandic epilepsy, Panayiotopoulos syndrome, or sleep-related movement disorder [1-4]. Only nine patients have been described to date, with typically, a normal development [1,5-7]. In order to insist about the benignity of the affection, we report two cases: a new three-year-old boy suffering from BNAH and a patient already published to show positive evolution at fourteen years of age. BNAH is a rare disorder but may be underdiagnosed. Making an early diagnosis can help to describe to the parents the good prognosis without treatment. PMID:20817433

  18. Historical photogrammetry: Bird's Paluxy River dinosaur chase sequence digitally reconstructed as it was prior to excavation 70 years ago.

    PubMed

    Falkingham, Peter L; Bates, Karl T; Farlow, James O

    2014-01-01

    It is inevitable that some important specimens will become lost or damaged over time, conservation is therefore of vital importance. The Paluxy River dinosaur tracksite is among the most famous in the world. In 1940, Roland T. Bird described and excavated a portion of the site containing associated theropod and sauropod trackways. This excavated trackway was split up and housed in different institutions, and during the process a portion was lost or destroyed. We applied photogrammetric techniques to photographs taken by Bird over 70 years ago, before the trackway was removed, to digitally reconstruct the site as it was prior to excavation. The 3D digital model offers the opportunity to corroborate maps drawn by R.T. Bird when the tracksite was first described. More broadly, this work demonstrates the exciting potential for digitally recreating palaeontological, geological, or archaeological specimens that have been lost to science, but for which photographic documentation exists. PMID:24695537

  19. Five benefits of call recording for medical practices.

    PubMed

    Murphy, Roland

    2010-01-01

    Despite documentation's essential positioning in medical practices of all sizes and specialties, one aspect of patient and insurance provider interaction remains overlooked in the majority of practices: telephone-based communication. In many cases, patient and payment information exchanged via telephone is logged with little more than a note typed or written in the patient file. This leads to "he said/she said" disagreements with regard to patient service, consultations, and coding; reduced payments from insurance providers; incomplete patient records; liability exposure; and a host of other problems. In this article, call recording professional Roland Murphy explains how a call recording solution can fill the gaps in documentation, increase practice revenues, and improve patient care without excessive investment costs and while protecting patient confidentiality. PMID:20480782

  20. Historical Photogrammetry: Bird's Paluxy River Dinosaur Chase Sequence Digitally Reconstructed as It Was prior to Excavation 70 Years Ago

    PubMed Central

    Falkingham, Peter L.; Bates, Karl T.; Farlow, James O.

    2014-01-01

    It is inevitable that some important specimens will become lost or damaged over time, conservation is therefore of vital importance. The Paluxy River dinosaur tracksite is among the most famous in the world. In 1940, Roland T. Bird described and excavated a portion of the site containing associated theropod and sauropod trackways. This excavated trackway was split up and housed in different institutions, and during the process a portion was lost or destroyed. We applied photogrammetric techniques to photographs taken by Bird over 70 years ago, before the trackway was removed, to digitally reconstruct the site as it was prior to excavation. The 3D digital model offers the opportunity to corroborate maps drawn by R.T. Bird when the tracksite was first described. More broadly, this work demonstrates the exciting potential for digitally recreating palaeontological, geological, or archaeological specimens that have been lost to science, but for which photographic documentation exists. PMID:24695537

  1. International Program and Local Organizing Committees

    NASA Astrophysics Data System (ADS)

    2012-12-01

    International Program Committee Dionisio Bermejo (Spain) Roman Ciurylo (Poland) Elisabeth Dalimier (France) Alexander Devdariani (Russia) Milan S Dimitrijevic (Serbia) Robert Gamache (USA) Marco A Gigosos (Spain) Motoshi Goto (Japan) Magnus Gustafsson (Sweden) Jean-Michel Hartmann (France) Carlos Iglesias (USA) John Kielkopf (USA) John C Lewis (Canada) Valery Lisitsa (Russia) Eugene Oks (USA) Christian G Parigger (USA) Gillian Peach (UK) Adriana Predoi-Cross (Canada) Roland Stamm (Germany) Local Organizing Committee Nikolay G Skvortsov (Chair, St Petersburg State University) Evgenii B Aleksandrov (Ioffe Physico-Technical Institute, St Petersburg) Vadim A Alekseev (Scientific Secretary, St Petersburg State University) Sergey F Boureiko (St.Petersburg State University) Yury N Gnedin (Pulkovo Observatory, St Petersburg) Alexander Z Devdariani (Deputy Chair, St Petersburg State University) Alexander P Kouzov (Deputy Chair, St Petersburg State University) Nikolay A Timofeev (St Petersburg State University)

  2. The acute effect of music on interictal epileptiform discharges.

    PubMed

    Turner, Robert P

    2004-10-01

    This study was a prospective, randomized, single-blinded, crossover, placebo-controlled, pilot clinical trial investigating the effect of Mozart's Sonata for Two Pianos (K448) on the frequency of interictal epileptiform discharges (IEDs) from the EEGs of children with benign childhood epilepsy with centrotemporal spikes, or "rolandic" epilepsy. The goal was to demonstrate decreased frequency of IEDs with exposure to K448. Four subjects were recruited and 4-hour awake EEG recordings performed. IED frequency per minute was averaged over each of three epochs per hour. Mean IED count per epoch, standard deviations, and variance were calculated. Only complete waking epochs were analyzed. Two subjects demonstrated sufficient waking IEDs for statistical analysis, consisting of three epochs of K448-related effects. Significant decreases in IEDs per minute (33.7, 50.6, and 33.9%) were demonstrated comparing baseline with exposure to K448, but not to control music (Beethoven's Für Elise). PMID:15380117

  3. Langevin Simulation of Microstructure in Martensitic Transformations

    NASA Astrophysics Data System (ADS)

    Wu, Y.; Lookman, T.; Shenoy, S. R.; Saxena, A.; Bishop, A. R.

    1996-03-01

    We present a dynamical model to simulate microstructure in martensitic transformations within the context of shape memory alloys. The Hamiltonian of the system includes a triple-well potential (φ^6 model) in local shear strain, (2) strain gradient terms up to second order in strain and fourth order in gradient, and (3) all symmetry allowed compositional fluctuation induced strain gradient terms. We show the formation of twinned martensite below the transformation temperature and tweed precursors above the transformation temperature, as well as indications of hierarchical structures near the habit plane. These phases result from a competition between short range attraction and long range elastic repulsive forces. The long range interaction is incorporated via Fourier spectral methods as discussed by C. Roland and R.C.Desai [Phys. Rev. B 42, 6658 (1990)].

  4. Position specificity in Chitonomyces (Ascomycota, Laboulbeniomycetes) on Laccophilus (Coleoptera, Dytiscidae): a molecular approach resolves a century-old debate.

    PubMed

    Goldmann, Lauren; Weir, Alex

    2012-01-01

    The occurrence of Laboulbeniomycete species consistently on a precise portion of beetle integument was investigated in 13 species of Chitonomyces ectoparasitic on the aquatic diving beetle Laccophilus maculosus (Coleoptera, Dytiscidae). The phenomenon was called "position specificity" by Roland Thaxter in 1896, yet the mechanism has remained unknown. By using molecular analysis of the nucSSU rRNA gene and the 5.8S and partial ITS1 rRNA regions, 13 species of Chitonomyces reported to exhibit position specificity on Laccophilus maculosus were placed neatly into pairs of morphotypes, resulting in synonomies and recognition of six phylogenetic species (one species is a triplet). Each phylogenetic species was located at corresponding positions on male and female beetles that make contact during mating. In addition, ecological data and video footage of the mating behaviors of Laccophilus confirmed that sexual transmission is the mechanism behind this enigmatic phenomenon. PMID:22684291

  5. Benign idiopathic partial epilepsy and brain lesion.

    PubMed

    Stephani, U; Doose, H

    1999-03-01

    A 14-year-old girl had severe head trauma from a dog bite at the age of 9 days. This resulted in extensive brain damage, tetraplegia, mental retardation, and epilepsy. The seizures were of rolandic type, and the EEG showed multifocal sharp waves. The course was benign. The initial diagnosis of a pure symptomatic epilepsy was revised after demonstrating typical benign focal sharp waves in the EEG of the healthy sister. Thus a phenocopy of a benign partial epilepsy by the brain lesion could be excluded with sufficient certainty. This observation allows the conclusion that the genetic disposition underlying the sharp-wave trait characteristic of benign partial epilepsies can be involved also in the pathogenesis of seemingly pure symptomatic epilepsies. EEG studies on siblings of such patients are needed to exclude possible phenocopies. PMID:10080522

  6. Airborne Wind Shear Detection and Warning Systems. Second Combined Manufacturers' and Technologists' Conference, part 2

    NASA Technical Reports Server (NTRS)

    Spady, Amos A., Jr. (Compiler); Bowles, Roland L. (Compiler); Schlickenmaier, Herbert (Compiler)

    1990-01-01

    The Second Combined Manufacturers' and Technologists' Conference was hosted jointly by NASA Langley (LaRC) and the Federal Aviation Administration (FAA) in Williamsburg, Virginia, on October 18 to 20, 1988. The meeting was co-chaired by Dr. Roland Bowles of LaRC and Herbrt Schlickenmaier of the FAA. The purpose of the meeting was to transfer significant, ongoing results gained during the second year of the joint NASA/FAA Airborne Wind Shear Program to the technical industry and to pose problems of current concern to the combined group. It also provided a forum for manufacturers to review forward-look technology concepts and for technologists to gain an understanding of the problems encountered by the manufacturers during the development of airborne equipment and the FAA certification requirements.

  7. And to end on a poetic note: Galen’s authorial strategies in the pharmacological books

    PubMed Central

    Totelin, Laurence M.V.

    2012-01-01

    This paper examines the authorial strategies deployed by Galen in his two main pharmacological treatises devoted to compound remedies: Composition of Medicines according to Types and Composition of Medicines according to Places. Some of Galen’s methods of self assertion (use of the first person; writing of prefaces) are conventional. Others have not received much attention from scholars. Thus, here, I examine Galen’s borrowing of his sources’ ‘I’; his use of the phrase ‘in these words’; and his recourse to Damocrates’ verse to conclude pharmacological books. I argue that Galen’s authorial persona is very different from that of the modern author as defined by Roland Barthes. Galen imitates and impersonates his pharmacological sources. This re-enactment becomes a way to gain experience (peira) of remedies and guarantees their efficacy.

  8. Session: Program Review X Wrap-Up

    SciTech Connect

    1992-01-01

    This wrap-up session at the Geothermal Energy Program Review X: Geothermal Energy and the Utility Market consisted of Closing Remarks by Roland R. Kessler and six NGA Industry Critique Panel presentations: ''Summary of Comments on DOE-Industry Cooperation by Geothermal Industry Panel'' by James B. Koenig, GeothermEx, Inc.; ''NGA Industry Critique of the Exploration Component'' by Joe L. Iovenitti, Weiss Associates; ''Critique of Drilling Research'' by Jerry Hamblin, UNOCAL Geothermal; ''Critique Panel Comments on Reservoir Engineering, DOE Geothermal Technology Development'' by Dennis Kaspereit, California Energy Company, Inc.; ''DOE Geothermal Program Review - Critique on Production'' by Douglas B. Jung, Two-Phase Engineering and Research; ''Comments on the DOE Hydrothermal Energy Conversion R&D Program'' by David L. Mendive, Geothermal Development Associates.

  9. Cognitive Expertise: An ALE Meta-Analysis.

    PubMed

    Neumann, Nicola; Lotze, Martin; Eickhoff, Simon B

    2016-01-01

    Expert performance constitutes the endpoint of skill acquisition and is accompanied by widespread neuroplastic changes. To reveal common mechanisms of reorganization associated with long-term expertise in a cognitive domain (mental calculation, chess, language, memory, music without motor involvement), we used activation likelihood estimation meta-analysis and compared brain activation of experts to nonexperts. Twenty-six studies matched inclusion criteria, most of which reported an increase and not a decrease of activation foci in experts. Increased activation occurred in the left rolandic operculum (OP 4) and left primary auditory cortex and in bilateral premotor cortex in studies that used auditory stimulation. In studies with visual stimulation, experts showed enhanced activation in the right inferior parietal cortex (area PGp) and the right lingual gyrus. Experts' brain activation patterns seem to be characterized by enhanced or additional activity in domain-specific primary, association, and motor structures, confirming that learning is localized and very specialized. PMID:26467981

  10. Recurrent head and neck desmoplastic melanoma with perineural spread along the nervus mandibularis revealed by 18F-FDG PET/CT.

    PubMed

    Balink, H; de Visscher, J G A M; van der Meij, E H

    2014-08-01

    This report describes a rare case of recurrent head and neck desmoplastic neurotropic melanoma with perineural spread along the nervus mandibularis. An 87-year-old male presented with a rapidly growing mass on the right side of the chin, 4 years after surgical excision of a desmoplastic non-melanotic melanoma of the tip of the chin, with lymphadenectomy of the right side submental and submandibular areas. A panoramic X-ray showed extensive widening of the mandibular canal compatible with perineural tumour growth. (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) images revealed intense pathological uptake in the recurrent tumour mass located in the right lower buccal fold, and linear pathological uptake in the mandibular canal. Although magnetic resonance imaging is considered the standard of reference, recognition of perineural spread on (18)F-FDG PET/CT is important, as it usually leads to a change in patient management from cure to palliation and may avert further diagnostic procedures. PMID:24811290

  11. Dietary Exposure of Nigerians to Mutagens and Estrogen-Like Chemicals

    PubMed Central

    Omoruyi, Iyekhoetin Matthew; Ahamioje, Derek; Pohjanvirta, Raimo

    2014-01-01

    Food and drinking water are poorly delineated sources of human exposure to chemical food mutagens and endocrine-disrupting chemicals. In this study, we investigated the presence of mutagens and chemicals exhibiting estrogenic activity in the daily diet of Nigerians, using in vitro assays. Commercially processed foods or snacks and various brands of pure water sachets were extracted by solid-phase extraction and liquid-liquid extraction, respectively. Mutagenicity was determined by the conventional Ames test and two complementary assays on two strains of Salmonella (TA 100 and TA 98), while the estrogenic activity was assessed by a yeast bioluminescent assay, using two recombinant yeast strains (Saccharomyces cerevisiae BMAEREluc/ERα and S. cerevisiae BMA64/luc). A third of the food varieties investigated (chin-chin, hamburger, suya and bean cake) were mutagenic in all three assays, either in the presence or absence of S9 mix. Of the packed water samples, five out of the sixteen investigated (31%), were found to be estrogenic, with estradiol and bisphenol A equivalents ranging from 0.79 to 44.0 ng/L and 124.2 to 1,000.8 ng/L, respectively. Hence, although the current situation in Nigeria does not appear to be substantially worse than, e.g., in Europe, regular monitoring is warranted in the future. PMID:25153465

  12. A genome-wide association scan implicates DCHS2, RUNX2, GLI3, PAX1 and EDAR in human facial variation

    PubMed Central

    Adhikari, Kaustubh; Fuentes-Guajardo, Macarena; Quinto-Sánchez, Mirsha; Mendoza-Revilla, Javier; Camilo Chacón-Duque, Juan; Acuña-Alonzo, Victor; Jaramillo, Claudia; Arias, William; Lozano, Rodrigo Barquera; Pérez, Gastón Macín; Gómez-Valdés, Jorge; Villamil-Ramírez, Hugo; Hunemeier, Tábita; Ramallo, Virginia; Silva de Cerqueira, Caio C.; Hurtado, Malena; Villegas, Valeria; Granja, Vanessa; Gallo, Carla; Poletti, Giovanni; Schuler-Faccini, Lavinia; Salzano, Francisco M.; Bortolini, Maria- Cátira; Canizales-Quinteros, Samuel; Cheeseman, Michael; Rosique, Javier; Bedoya, Gabriel; Rothhammer, Francisco; Headon, Denis; González-José, Rolando; Balding, David; Ruiz-Linares, Andrés

    2016-01-01

    We report a genome-wide association scan for facial features in ∼6,000 Latin Americans. We evaluated 14 traits on an ordinal scale and found significant association (P values<5 × 10−8) at single-nucleotide polymorphisms (SNPs) in four genomic regions for three nose-related traits: columella inclination (4q31), nose bridge breadth (6p21) and nose wing breadth (7p13 and 20p11). In a subsample of ∼3,000 individuals we obtained quantitative traits related to 9 of the ordinal phenotypes and, also, a measure of nasion position. Quantitative analyses confirmed the ordinal-based associations, identified SNPs in 2q12 associated to chin protrusion, and replicated the reported association of nasion position with SNPs in PAX3. Strongest association in 2q12, 4q31, 6p21 and 7p13 was observed for SNPs in the EDAR, DCHS2, RUNX2 and GLI3 genes, respectively. Associated SNPs in 20p11 extend to PAX1. Consistent with the effect of EDAR on chin protrusion, we documented alterations of mandible length in mice with modified Edar funtion. PMID:27193062

  13. Mandibular incisive canal in Han Chinese using cone beam computed tomography.

    PubMed

    Kong, N; Hui, M; Miao, F; Yuan, H; Du, Y; Chen, N

    2016-09-01

    The aim of this study was to provide reference information for implantology and chin bone harvesting in people of Han Chinese ethnicity by studying the mandibular incisive canal (MIC) using cone beam computed tomography (CBCT). Fifty subjects were included in the study. CBCT scans were obtained for all subjects, and 22 also underwent panoramic radiography to evaluate the visibility of the MIC. The CBCT data of the 50 subjects were reconstructed to measure MIC diameter, length, and location within the mandible. A MIC was identified in 38.6% of panoramic radiographs, with good clarity in 13.6%, while a MIC was identified in 100% of CBCT images, with good clarity in 63.6%. The diameter of the MIC decreased from origin to end. The left and right average MIC lengths were 17.84mm and 17.73mm, respectively. The MIC was close to the buccal cortical border and lower margin of the mandible. In conclusion, the MIC is an anatomical structure in the mandible that can be identified reliably with CBCT. On insertion, implants should be inclined slightly towards the lingual aspect of the anterior mandible to protect the MIC. The chin bone harvesting depth should be limited to 4mm; the harvesting site can be adjusted to the region above or below the MIC. PMID:27184354

  14. Taiwanese Political Parties can be Categorized by Face, by Those Who Reported Making Face-To-Trait Inferences

    PubMed Central

    Hu, Shun-Fu; Chang, Chien-Kai; Chen, Yu-Chen; Chien, Sarina Hui-Lin

    2016-01-01

    The present study aims to replicate and extend Rule and Ambady (2010a)'s findings that Republicans and Democrats could be differentiated by face. In Experiment 1, undergraduates categorized 50 gray-scale full-face photos of candidates of the two major political parties in Taiwan, the Kuomingtang (KMT) and the Democratic Progressive Party (DPP). Using identical stimuli and procedure, Experiment 2 tested 25- to 57-year-olds. Experiment 3 tested undergraduates with cropped photos, Experiment 4, with photos devoid of the mouth and chin area. At the end of each Experiment, we interviewed the participants about the strategies used. Results showed that undergraduates could categorize KMT and DPP with accuracies significantly higher than chance in full-face photos (Experiment 1), M = 0.524, p = 0.045, cropped photos (Experiment 3), M = 0.534, p = 0.016, and photos devoid of the mouth-and-chin area (Experiment 4), M = 0.530, p = 0.048. Adults aged between 25 and 57 could also categorize full-face photos (Experiment 2), M = 0.557, p < 0.001. Analysis on strategy use revealed that the better-than-chance performance may be a unique contribution of those who reported making face-to-trait inferences. In sum, we replicated Rule and Ambady's (2010a) results in East Asian and found that face-to-trait inferences may be essential. PMID:26793130

  15. Possible Interbreeding in Late Italian Neanderthals? New Data from the Mezzena Jaw (Monti Lessini, Verona, Italy)

    PubMed Central

    Condemi, Silvana; Mounier, Aurélien; Giunti, Paolo; Lari, Martina; Caramelli, David; Longo, Laura

    2013-01-01

    In this article we examine the mandible of Riparo Mezzena a Middle Paleolithic rockshelter in the Monti Lessini (NE Italy, Verona) found in 1957 in association with Charentian Mousterian lithic assemblages. Mitochondrial DNA analysis performed on this jaw and on other cranial fragments found at the same stratigraphic level has led to the identification of the only genetically typed Neanderthal of the Italian peninsula and has confirmed through direct dating that it belongs to a late Neanderthal. Our aim here is to re-evaluate the taxonomic affinities of the Mezzena mandible in a wide comparative framework using both comparative morphology and geometric morphometrics. The comparative sample includes mid-Pleistocene fossils, Neanderthals and anatomically modern humans. This study of the Mezzena jaw shows that the chin region is similar to that of other late Neanderthals which display a much more modern morphology with an incipient mental trigone (e.g. Spy 1, La Ferrassie, Saint-Césaire). In our view, this change in morphology among late Neanderthals supports the hypothesis of anatomical change of late Neanderthals and the hypothesis of a certain degree of interbreeding with AMHs that, as the dating shows, was already present in the European territory. Our observations on the chin of the Mezzena mandible lead us to support a non abrupt phylogenetic transition for this period in Europe. PMID:23544098

  16. Mathematical modelling of slow pyrolysis of a particle of treated wood waste.

    PubMed

    Ratte, J; Marias, F; Vaxelaire, J; Bernada, P

    2009-10-30

    Low-temperature pyrolysis is a possible method for the disposal of wood waste treated with chromated copper arsenic (CCA). A mathematical model (heat and mass transfer) including chemical reactions of the thermal degradation of a particle of wood is presented. A spherical particle is heated by a convective nitrogen flow. The progress of the pyrolysis process is characterized by three main steps: (1) drying of the wet sample; (2) heating of the sample until ignition of pyrolysis reactions; (3) pyrolysis and subsequent production of char and volatiles. The mathematical model is based on the volume averaging concept and it uses Shafizadeh and Chin [F. Shafizadeh, P.S. Chin, Thermal deterioration of wood, wood technology: chemical aspects, ACS Symposium Series 43 (1977) 57-81] pyrolysis model to describe the reaction pathway. It is solved by the line method, taking time as the preferred variable. Our model predicts intra-particle profiles for several variables (temperature, moisture content, concentration of wood). Simulations are presented with a spherical particle of 1cm radius. PMID:19535204

  17. Honest sexual signaling in turtles: experimental evidence of a trade-off between immune response and coloration in red-eared sliders Trachemys scripta elegans

    NASA Astrophysics Data System (ADS)

    Ibáñez, Alejandro; Polo-Cavia, Nuria; López, Pilar; Martín, José

    2014-10-01

    Sexual signals can be evolutionarily stable if they are honest and condition dependent or costly to the signaler. One possible cost is the existence of a trade-off between maintaining the immune system and the elaboration of ornaments. This hypothesis has been experimentally tested in some groups of animals but not in others such as turtles. We experimentally challenged the immune system of female red-eared sliders Trachemys scripta elegans, with a bacterial antigen (lipopolysaccharide (LPS)) without pathogenic effects to explore whether the immune activation affected visual colorful ornaments of the head. The LPS injection altered the reflectance patterns of color ornaments. In comparison to the control animals, the yellow chin stripes of injected animals exhibited (1) reduced brightness, (2) lower long wavelength (>470 nm) reflectance, and (3) lower values for carotenoid chroma. The postorbital patches of injected individuals also showed reduced very long wavelength (>570 nm) reflectance but did not change in carotenoid chroma. Thus, experimental turtles showed darker and less "yellowish" chin stripes and less "reddish" postorbital patches at the end of the experiment, whereas control turtles did not change their coloration. This is the first experimental evidence supporting the existence of a trade-off between the immune system and the expression of visual ornaments in turtles. We suggest that this trade-off may allow turtles to honestly signal individual quality via characteristics of coloration, which may have an important role in intersexual selection processes.

  18. Comment on ``Adiabatic quantum computation with a one-dimensional projector Hamiltonian''

    NASA Astrophysics Data System (ADS)

    Kay, Alastair

    2013-10-01

    The partial adiabatic search algorithm was introduced in Tulsi's paper [Phys. Rev. APLRAAN1050-294710.1103/PhysRevA.80.052328 80, 052328 (2009)] as a modification of the usual adiabatic algorithm for a quantum search with the idea that most of the interesting computation only happens over a very short range of the adiabatic path. By focusing on that restricted range, one can potentially gain an advantage by reducing the control requirements on the system, enabling a uniform rate of evolution. In this Comment, we point out an oversight in Tulsi's paper [Phys. Rev. APLRAAN1050-294710.1103/PhysRevA.80.052328 80, 052328 (2009)] that invalidates its proof. However, the argument can be corrected, and the calculations in Tulsi's paper [Phys. Rev. APLRAAN1050-294710.1103/PhysRevA.80.052328 80, 052328 (2009)] are then sufficient to show that the scheme still works. Nevertheless, subsequent works [Phys. Rev. APLRAAN1050-294710.1103/PhysRevA.82.034304 82, 034304 (2010), Chin. Phys. BCPBHAJ1674-105610.1088/1674-1056/20/4/040309 20, 040309 (2011), Chin. Phys. BCPBHAJ1674-105610.1088/1674-1056/21/1/010306 21, 010306 (2012), AASRI Procedia 1, 5862 (2012), and Quantum Inf. Process.10.1007/s11128-013-0557-1 12, 2689 (2013)] cannot all be recovered in the same way.

  19. Cervical Spondylotic Myelopathy Secondary to Dropped Head Syndrome: Report of a Case and Review of the Literature

    PubMed Central

    Soufiani, Housain F.; Rahimizadeh, Saghayegh

    2016-01-01

    The dropped head syndrome (DHS) is a disabling condition caused by severe weakness of the neck extensor muscles causing progressive reducible kyphosis of the cervical spine and the inability to hold the head up. Weakness can occur in isolation or in association with a generalized neuromuscular disorder. Isolated cases are owed to the late onset of noninflammatory myopathy designated as INEM, where persistent chin to chest deformity may gradually cause or aggravate preexisting degenerative changes of the cervical spine and ultimately result in myelopathy. In review of the literature, we could find only 5 cases, with no unique guidelines to address the management of these two concomitant pathologies. Herein, a 69-year-old man who had developed cervical myelopathy 2 years after being affected by isolated dropped head syndrome is presented. Chin to chest deformity and cervical myelopathy were managed through three-level anterior cervical discectomy and fusion (ACDF) combined with decompressive cervical laminectomy and stabilization with C2 to C7 pedicle screw-rod construct. At 4-month follow-up, despite recovery in patient's neurological status, flexion deformity reappeared with recurrence of dropped head due to C7 pedicle screws pull-out. However, this was successfully managed with extension of the construct to the upper thoracic levels. PMID:27034870

  20. Particle size-dependent leakage and losses of aerosols in respirators.

    PubMed

    Holton, P M; Tackett, D L; Willeke, K

    1987-10-01

    Measuring particle size-dependent leakage into and losses inside a respirator reveals the deposition mechanisms occurring at the leak site and the flow dynamics inside the respirator. This study investigated particle size-dependent leakage and deposition within the mask by examining the leakage into the mask for different hole locations, probe locations, hole shapes, hole lengths and hole sizes. The shape of the leak has an effect on particle size-dependent leakage. Probe and leak location tests indicated that not only does the total measured leakage change but also the size-dependence of the leakage changes depending on the leak and probe locations. When the leak site is in the chin area, the clean air entering through the filters at the chin helps to carry the inward leakage into the breathing zone. Particle size-dependent leakage does occur and is due to both inertial entry losses at the leak site and within the mask, and diffusional losses within the mask and leak site. Particle size-dependent curves change shape as the hole size changes with relatively more larger particles entering through the small hole size. PMID:3687729

  1. Craniofacial morphometric analysis of individuals with X-linked hypohidrotic ectodermal dysplasia

    PubMed Central

    Goodwin, Alice F; Larson, Jacinda R; Jones, Kyle B; Liberton, Denise K; Landan, Maya; Wang, Zhifeng; Boekelheide, Anne; Langham, Margaret; Mushegyan, Vagan; Oberoi, Snehlata; Brao, Rosalie; Wen, Timothy; Johnson, Ramsey; Huttner, Kenneth; Grange, Dorothy K; Spritz, Richard A; Hallgrímsson, Benedikt; Jheon, Andrew H; Klein, Ophir D

    2014-01-01

    Hypohidrotic ectodermal dysplasia (HED) is the most prevalent type of ectodermal dysplasia (ED). ED is an umbrella term for a group of syndromes characterized by missing or malformed ectodermal structures, including skin, hair, sweat glands, and teeth. The X-linked recessive (XL), autosomal recessive (AR), and autosomal dominant (AD) types of HED are caused by mutations in the genes encoding ectodysplasin (EDA1), EDA receptor (EDAR), or EDAR-associated death domain (EDARADD). Patients with HED have a distinctive facial appearance, yet a quantitative analysis of the HED craniofacial phenotype using advanced three-dimensional (3D) technologies has not been reported. In this study, we characterized craniofacial morphology in subjects with X-linked hypohidrotic ectodermal dysplasia (XLHED) by use of 3D imaging and geometric morphometrics (GM), a technique that uses defined landmarks to quantify size and shape in complex craniofacial morphologies. We found that the XLHED craniofacial phenotype differed significantly from controls. Patients had a smaller and shorter face with a proportionally longer chin and midface, prominent midfacial hypoplasia, a more protrusive chin and mandible, a narrower and more pointed nose, shorter philtrum, a narrower mouth, and a fuller and more rounded lower lip. Our findings refine the phenotype of XLHED and may be useful both for clinical diagnosis of XLHED and to extend understanding of the role of EDA in craniofacial development. PMID:25333067

  2. Comparison of Cyberware PX and PS 3D human head scanners

    NASA Astrophysics Data System (ADS)

    Carson, Jeremy; Corner, Brian D.; Crockett, Eric; Li, Peng; Paquette, Steven

    2008-02-01

    A common limitation of laser line three-Dimensional (3D) scanners is the inability to scan objects with surfaces that are either parallel to the laser line or that self-occlude. Filling in missing areas adds some unwanted inaccuracy to the 3D model. Capturing the human head with a Cyberware PS Head Scanner is an example of obtaining a model where the incomplete areas are difficult to fill accurately. The PS scanner uses a single vertical laser line to illuminate the head and is unable to capture data at top of the head, where the line of sight is tangent to the surface, and under the chin, an area occluded by the chin when the subject looks straight forward. The Cyberware PX Scanner was developed to obtain this missing 3D head data. The PX scanner uses two cameras offset at different angles to provide a more detailed head scan that captures surfaces missed by the PS scanner. The PX scanner cameras also use new technology to obtain color maps that are of higher resolution than the PS Scanner. The two scanners were compared in terms of amount of surface captured (surface area and volume) and the quality of head measurements when compared to direct measurements obtained through standard anthropometry methods. Relative to the PS scanner, the PX head scans were more complete and provided the full set of head measurements, but actual measurement values, when available from both scanners, were about the same.

  3. Clinical efficacy of facial masks containing yoghurt and Opuntia humifusa Raf. (F-YOP).

    PubMed

    Yeom, Gyoseon; Yun, Dae-Myoung; Kang, Yun-Won; Kwon, Ji-Sook; Kang, In-Oh; Kim, Sun Yeou

    2011-01-01

    Facial packs or masks are popular beauty treatments that are thought to improve skin quality. We formulated a yoghurt pack using natural ingredients (F-YOP), with consideration of skin affinity, safety, health, and beauty. Then, we performed an in vitro assessment of biological activity and in vivo assessments of moisture, TEWL, melanin content, and elasticity. Facial areas treated with F-YOP showed increased moisture compared to control regions: 89±6.26% (forehead), 140.72±10.19% (cheek), and 123.29±6.67% (chin). Transepidermal water loss (TEWL) values were decreased in the treated areas compared to control: 101.38±6.95% (forehead), 50.37±5.93% (cheek), and l57.81±10.88% (chin). Elasticity was decreased in the control region, whereas the treatment region did not change. The initial elasticity was maintained in the cheek. F-YOP exhibited activity on DPPH radical scavenging, SOD-like activity, and lipoxygenase activity. F-YOP treatment successfully improved the moisture, brightness, and elasticity of treated skin. PMID:22152494

  4. Comparison of the reproducibility of panoramic radiographs between dentulous and edentulous patients

    PubMed Central

    Park, Jong-Woong; Huh, Kyung-Hoe; Yi, Won-Jin; Lee, Sam-Sun; Choi, Soon-Chul

    2014-01-01

    Purpose This study was performed to evaluate the reproducibility of panoramic radiographs of dentulous and edentulous patients. Materials and Methods The reproducibility of panoramic radiographs was evaluated using the panoramic radiographs acquired from 30 anterior dentulous patients by using a common biting positioning device (dentulous group) and 30 anterior edentulous patients by using chin-support devices to take a panoramic radiograph (edentulous group), respectively; these patients had undergone 3 or more panoramic radiographs. The widths and angles between the designated landmarks were measured on the panoramic radiographs, and the reproducibility was evaluated using the intraclass correlation coefficient (ICC) and the coefficient of variation. Results In the dentulous and edentulous groups, the ICCs of the mandibular ramus and mandibular angle areas were higher than the condylar head and zygomatic areas. The mandibular ramus and angle areas showed statistically lower mean coefficients of variation than the condylar head and zygomatic areas in the dentulous group. The mandibular angle area showed a significantly lower mean coefficient of variation than the zygomatic area in the edentulous group. By comparing the two groups, each ICC of the edentulous group was lower than that of the dentulous group, and the mean coefficients of variation of the mandibular ramus area, zygomatic area, left condylar inclination, and ramus ratio between the right and the left in the edentulous group were significantly higher than those in the dentulous group. Conclusion Biting positioning for dentulous patients provided better positioning reproducibility than chin-support positioning when performing panoramic radiography for edentulous patients. PMID:24944958

  5. Autoimmunity in connection with a metal implant: a case of autoimmune/autoinflammatory syndrome induced by adjuvants.

    PubMed

    Loyo, Esthela; Jara, Luis J; López, Persio David; Puig, Ana Carolina

    2013-04-01

    Autoimmune/autoinflammatory syndrome induced by adjuvants (ASIA) has been recently proposed by Shoenfeld and Agmon-Levin as a new entity that comprises several conditions: the macrophagic-myofasciitis syndrome, the Gulf War syndrome, silicosis and post-vaccination phenomena, autoimmunity related to infectious fragments, hormones, aluminum, silicone, squalene oil, and pristane. We report the case of a 23-year-old woman who developed serial episodes of high fever, extreme fatigue, transient thrombocytopenia, multiple cervical adenopathies, hepatosplenomegaly, anemia, neutropenia, severe proteinuria and urine sediment abnormalities, elevated serum ferritin levels, and transient low positive antinuclear antibodies 1 year after she had a nickel-titanium chin implant for cosmetic reasons. The clinical picture simulated a variety of probable diseases: systemic lupus erythematosus, Kikuchi-Fujimoto syndrome, adult onset Still's disease, antiphospholipid syndrome, and hemophagocytic syndrome, among others, so she underwent an extensive medical investigation including two lymph node biopsies. She received treatment accordingly with steroids, methotrexate, and mofetil mycophenolate, with initial improvement of her symptoms, which recurred every time the dose was reduced. Two and a half years later the patient decided to retire the chin implant and afterwards all her systemic symptoms have disappeared. She remains in good health, without recurrence of any symptom and off medications until today. Albeit this patient fulfills proposed major ASIA criteria, to our knowledge it would be the first description of systemic features of autoinflammation in connection with a metal implant. PMID:26000140

  6. Frequency Distribution and Association of some Morpho- and Physiological Traits in Patients with Lung Diseases in Kosova.

    PubMed

    Alija, Avdulla J; Bajraktari, Ismet D; Bresgen, Nikolaus; Hadziselimovic, Rifat; Beqiraj, Valentina; Selimi, Mimoza; Salihu, Hyrzeme; Mikullovci, Besime; Eckl, Peter M

    2015-12-01

    The aim of this study was to investigate the distribution of specific phenotypes in patients with lung diseases as well as their eventual association with the risk of developing lung diseases. For this purpose 2777 patients with lung diseases and 2778 healthy individuals from all over Kosova were examined for the appearance of the following selected phenotypes: ear lobe free (ELF)/ear lobe attached, normal chin (NC)/cleft chin, tongue roller (TR)/non roller, hand clasping right thumb over (HC)/hand clasping left thumb over, righthanded (RH)/lefthanded. In addition, the blood group from ABO system and the presence or absence of the Rhesus factor asphenotypical markers were observed. The results obtained show significant differences between control and lung disease patients for NC (p ≤ 0.05) and TR (p ≤ 0.005) as well as for blood groups AB (p ≤ 0.05) and O (p ≤ 0.005). These results point to eventually increased levels of genetic load as a result of the increased homozygosity in some gene loci causing an increased frequency of some recessive phenotypes in patients with lung diseases. Together with the specific associations observed, these preliminary findings could serve as a basis for further in depth investigations with respect to the types of lung diseases, occupational exposure and dietary habits, and thus is expected to contribute to an understanding of predispositions and susceptibility to lung diseases. PMID:26987159

  7. Congenital muscular torticollis in adult patients: literature review and a case report using a harmonic scalpel.

    PubMed

    Pombo Castro, María; Luaces Rey, Ramón; Vázquez Mahía, Inés; López-Cedrún Cembranos, José Luís

    2014-02-01

    Congenital torticollis is characterized by shortening and fibrosis of the sternocleidomastoid (SCM) muscle detected at birth or shortly after birth. This leads to a lateral inclination of the head to the ipsilateral shoulder and chin deviation to the opposite side. When diagnosed early, most cases can be conservatively managed with excellent results. In neglected adult cases, the treatment of this entity is more controversial. A review of the different treatment options in neglected adult cases of congenital torticollis is presented, and a case successfully treated by SCM bipolar release is reported. A 35-year-old woman diagnosed with congenital torticollis was referred to the authors' department. She had been diagnosed at 32 years of age and had been conservatively treated, with no success. Physical examination showed a posterior region of the left SCM muscle hard to palpation, with head tilt to the same side and chin deviation to the right. Bipolar release of the SCM muscle was performed under general anesthesia using the harmonic scalpel. Immobilization with a brace was applied during the first 2 weeks and manual stretching was performed after removal of the brace. Head tilt and movement limitation were resolved, achieving good functional and cosmetic results. Although the best treatment results in congenital torticollis are achieved during the first years of childhood, bipolar release of the SCM muscle followed by postsurgical physical therapy can be effective in neglected adult cases. PMID:24139297

  8. Anatomical differences in response to treatment of port-wine stains by the pulsed dye laser

    NASA Astrophysics Data System (ADS)

    Renfro, Lisa; Geronemus, Roy G.

    1992-06-01

    Two-hundred and fifty-seven patients (136 adults and 121 children) with port-wine stains of the head and neck were treated with the flashlamp-pumped pulsed dye laser. The head and neck was subdivided into 8 anatomical regions (forehead/temple, periorbital, medial cheek, nose, upper cutaneous lip, lateral cheek, chin and neck) which were independently evaluated for response. Response to treatment was found to be associated with the anatomical location of the lesion; in both adults and children the mid-facial region (medial cheek, nose and upper cutaneous lip) responded less favorably to treatment than the other regions of the head and neck (periorbital, forehead/temple, lateral cheek, neck and chin). In adults and children, mean percent lesional lightening of the mid-facial regions was 70.7% compared to 82.3% of the other regions of the head and neck with an estimated difference of 11.6% (95% confidence interval: 8.7% - 14.6%). The mean number of treatments for adults was 3.7, while this number in children was 3.9. All side effects were transient, and included cutaneous depressions, hypopigmentation and hyperpigmentation.

  9. Monitored anesthesia care for great saphenous vein stripping surgery with target controlled infusion of propofol and remifentanil: a prospective study

    PubMed Central

    Cho, Sooyoung; Baik, Hee Jung; Kim, Dong Yeon; Chun, Eun Hee

    2016-01-01

    Background The aim of this study was to determine the appropriate target concentrations at the effect site of propofol and remifentanil when deep sedation was achieved by monitored anesthesia care (MAC) anesthesia and related respiratory depression during vein stripping surgery for varicose veins. Methods In total, 51 adult patients who were scheduled for varicose vein stripping surgery were sedated with propofol and remifentanil during the surgery, after administration of midazolam. Target concentrations at the effect site of the two drugs were changed based on the patient's status. Respiratory support was applied in the order of oxygen supply, chin lift, and assisted mask ventilation. Target concentrations at the effect site of propofol and remifentanil, the need for respiratory support, and a six-point rating scale satisfaction score were the outcome measurements. Results Only one patient did not require oxygen, eight patients needed oxygen alone, 22 patients required use of the chin lift technique, and 20 patients were assisted with mask ventilation. There was no significant difference in the target concentration of propofol or remifentanil between the patients who required mask ventilation and those who did not. Fifty of the 51 patients reported a satisfaction score of 6. Conclusions Although MAC using low target concentrations of propofol and remifentanil during vein stripping surgery was satisfactory to patients, close observation regarding the need for respiratory assistance was necessary. PMID:27066207

  10. Differences in facial expressions of four universal emotions.

    PubMed

    Kohler, Christian G; Turner, Travis; Stolar, Neal M; Bilker, Warren B; Brensinger, Colleen M; Gur, Raquel E; Gur, Ruben C

    2004-10-30

    The facial action coding system (FACS) was used to examine recognition rates in 105 healthy young men and women who viewed 128 facial expressions of posed and evoked happy, sad, angry and fearful emotions in color photographs balanced for gender and ethnicity of poser. Categorical analyses determined the specificity of individual action units for each emotion. Relationships between recognition rates for different emotions and action units were evaluated using a logistic regression model. Each emotion could be identified by a group of action units, characteristic to the emotion and distinct from other emotions. Characteristic happy expressions comprised raised inner eyebrows, tightened lower eyelid, raised cheeks, upper lip raised and lip corners turned upward. Recognition of happy faces was associated with cheek raise, lid tightening and outer brow raise. Characteristic sad expressions comprised furrowed eyebrow, opened mouth with upper lip being raised, lip corners stretched and turned down, and chin pulled up. Only brow lower and chin raise were associated with sad recognition. Characteristic anger expressions comprised lowered eyebrows, eyes wide open with tightened lower lid, lips exposing teeth and stretched lip corners. Recognition of angry faces was associated with lowered eyebrows, upper lid raise and lower lip depression. Characteristic fear expressions comprised eyes wide open, furrowed and raised eyebrows and stretched mouth. Recognition of fearful faces was most highly associated with upper lip raise and nostril dilation, although both occurred infrequently, and with inner brow raise and widened eyes. Comparisons are made with previous studies that used different facial stimuli. PMID:15541780

  11. Dietary exposure of Nigerians to mutagens and estrogen-like chemicals.

    PubMed

    Omoruyi, Iyekhoetin Matthew; Ahamioje, Derek; Pohjanvirta, Raimo

    2014-08-01

    Food and drinking water are poorly delineated sources of human exposure to chemical food mutagens and endocrine-disrupting chemicals. In this study, we investigated the presence of mutagens and chemicals exhibiting estrogenic activity in the daily diet of Nigerians, using in vitro assays. Commercially processed foods or snacks and various brands of pure water sachets were extracted by solid-phase extraction and liquid-liquid extraction, respectively. Mutagenicity was determined by the conventional Ames test and two complementary assays on two strains of Salmonella (TA 100 and TA 98), while the estrogenic activity was assessed by a yeast bioluminescent assay, using two recombinant yeast strains (Saccharomyces cerevisiae BMAEREluc/ERα and S. cerevisiae BMA64/luc). A third of the food varieties investigated (chin-chin, hamburger, suya and bean cake) were mutagenic in all three assays, either in the presence or absence of S9 mix. Of the packed water samples, five out of the sixteen investigated (31%), were found to be estrogenic, with estradiol and bisphenol A equivalents ranging from 0.79 to 44.0 ng/L and 124.2 to 1,000.8 ng/L, respectively. Hence, although the current situation in Nigeria does not appear to be substantially worse than, e.g., in Europe, regular monitoring is warranted in the future. PMID:25153465

  12. Revisiting the Authoritative-Dialogic Tension in Inquiry-Based Elementary Science Teacher Questioning

    NASA Astrophysics Data System (ADS)

    Van Booven, Christopher D.

    2015-05-01

    Building on the 'questioning-based discourse analytical' framework developed by Singapore-based science educator and discourse analyst, Christine Chin, this study investigated the extent to which fifth-grade science teachers' use of questions with either an authoritative or dialogic orientation differentially restricted or expanded the quality and complexity of student responses in the USA. The author analyzed approximately 10 hours of classroom discourse from elementary science classrooms organized around inquiry-based science curricula and texts. Teacher questions and feedback were classified according to their dialogic orientation and contextually inferred structural purpose, while student understanding was operationalized as a dynamic interaction between cognitive process, syntacto-semantic complexity, and science knowledge type. The results of this study closely mirror Chin's and other scholars' findings that the fixed nature of authoritatively oriented questioning can dramatically limit students' opportunities to demonstrate higher order scientific understanding, while dialogically oriented questions, by contrast, often grant students the discursive space to demonstrate a greater breadth and depth of both canonical and self-generated knowledge. However, certain teacher questioning sequences occupying the 'middle ground' between maximal authoritativeness and dialogicity revealed patterns of meaningful, if isolated, instances of higher order thinking. Implications for classroom practice are discussed along with recommendations for future research.

  13. The effect of violin playing on the bony facial structures in adolescents.

    PubMed

    Kovero, O; Könönen, M; Pirinen, S

    1997-08-01

    Holding a violin between shoulder and chin needs a special kind of muscle function. The purpose of this investigation was to determine whether this kind of muscular activity is a modifying factor for facial growth in adolescence. The bony facial dimensions of 24 adolescent violin students attending colleges of music with a playing history of 5-11 years were measured from lateral and posteroanterior cephalograms and panoramic tomograms of the jaws. The dimensions were compared with those of sex- and age-matched controls. Significant differences were found between violin players and controls. The players had higher faces, especially on the right side of the lower face and in the right mandibular ramus. The players also had more proclined upper and lower incisors than the controls. It is concluded that the overall greater facial height in violinists reflects the increased face muscle activity and the higher bony dimensions of the right side of the face are due to the muscular activity produced on that side to balance the load caused by the violin on the left. The greater proclination of the incisors is the result of an altered balance of muscular activity between tongue and lip, and the pressure of the violin to the chin. PMID:9308257

  14. A genome-wide association scan implicates DCHS2, RUNX2, GLI3, PAX1 and EDAR in human facial variation.

    PubMed

    Adhikari, Kaustubh; Fuentes-Guajardo, Macarena; Quinto-Sánchez, Mirsha; Mendoza-Revilla, Javier; Camilo Chacón-Duque, Juan; Acuña-Alonzo, Victor; Jaramillo, Claudia; Arias, William; Lozano, Rodrigo Barquera; Pérez, Gastón Macín; Gómez-Valdés, Jorge; Villamil-Ramírez, Hugo; Hunemeier, Tábita; Ramallo, Virginia; Silva de Cerqueira, Caio C; Hurtado, Malena; Villegas, Valeria; Granja, Vanessa; Gallo, Carla; Poletti, Giovanni; Schuler-Faccini, Lavinia; Salzano, Francisco M; Bortolini, Maria-Cátira; Canizales-Quinteros, Samuel; Cheeseman, Michael; Rosique, Javier; Bedoya, Gabriel; Rothhammer, Francisco; Headon, Denis; González-José, Rolando; Balding, David; Ruiz-Linares, Andrés

    2016-01-01

    We report a genome-wide association scan for facial features in ∼6,000 Latin Americans. We evaluated 14 traits on an ordinal scale and found significant association (P values<5 × 10(-8)) at single-nucleotide polymorphisms (SNPs) in four genomic regions for three nose-related traits: columella inclination (4q31), nose bridge breadth (6p21) and nose wing breadth (7p13 and 20p11). In a subsample of ∼3,000 individuals we obtained quantitative traits related to 9 of the ordinal phenotypes and, also, a measure of nasion position. Quantitative analyses confirmed the ordinal-based associations, identified SNPs in 2q12 associated to chin protrusion, and replicated the reported association of nasion position with SNPs in PAX3. Strongest association in 2q12, 4q31, 6p21 and 7p13 was observed for SNPs in the EDAR, DCHS2, RUNX2 and GLI3 genes, respectively. Associated SNPs in 20p11 extend to PAX1. Consistent with the effect of EDAR on chin protrusion, we documented alterations of mandible length in mice with modified Edar funtion. PMID:27193062

  15. Dilatancy Strengthening As a Mechanism for Earthquake Rupture Barriers and Aseismic Creep Transients on Oceanic Transform Faults

    NASA Astrophysics Data System (ADS)

    Liu, Y.; McGuire, J. J.; Behn, M. D.

    2014-12-01

    Ocean bottom seismometer deployments along the Gofar, Quebrada and Discovery transform faults on the East Pacific Rise (EPR) have revealed strong along-strike variation in M6 earthquake rupture extents and earthquake swarm activity. An active-source refraction survey along the ~ 100-km-long western segment of Gofar found a ~ 10-km-long zone of ~ 10-20% P wave velocity reduction, which extends from the surface to the Moho and acted as a "barrier" to previous cycles of M6 ruptures [McGuire et al., 2012; Roland et al., 2012]. The low velocity zone is interpreted to result primarily from enhanced fault zone porosity. That this region appears to behave as a rupture barrier is interesting from a fault frictional point of view because it nucleates intense microseismicity and hence has velocity-weakening (unstable slip) characteristics. In this study, we use a 3D strike-slip fault model with rate-state friction to investigate how the presence of a high-porosity, strong dilatancy zone embedded in a velocity-weakening transform fault could lead to a persistent earthquake rupture barrier. Rate-state frictional parameters are based on experimental results on gabbro gouge under hydrothermal conditions, and constrained by the tomoDD relocation of seismicity on Gofar [Froment et al., 2014]. Our modeling results reproduce the ~ 5 year recurrence interval of M6 earthquakes on two ~ 20-km-long fault segments separated by a ~ 10 km zone with effective dilatancy strengthening. A stronger dilatancy effect leads to a lower seismic coupling coefficient in the barrier zone. The release of energy in the barrier zone is manifested in various forms of aseismic deformation, including postseismic slip and interseismic slow slip events. The modeled slow slip migration speed and equivalent stress drop are comparable to those estimated from earthquake swarms on transform faults [Roland and McGuire, 2009], and suggests that such swarm activity is primarily driven by aseismic transient slip events.

  16. The 27-item Coping Strategies Questionnaire – Revised: Confirmatory factor analysis, reliability and validity in Italian-speaking subjects with chronic pain

    PubMed Central

    Monticone, Marco; Ferrante, Simona; Giorgi, Ines; Galandra, Caterina; Rocca, Barbara; Foti, Calogero

    2014-01-01

    BACKGROUND: Increasing attention is being devoted to cognitive-behavioural measures to improve interventions for chronic pain. OBJECTIVE: To develop an Italian version of the Coping Strategies Questionnaire – Revised (CSQ-R), and to validate it in a study involving 345 Italian subjects with chronic pain. METHODS: The questionnaire was developed following international recommendations. The psychometric analyses included confirmatory factor analysis; reliability, assessed by internal consistency (Cronbach’s alpha) and test-retest reliability (intraclass correlation coefficients); and construct validity, assessed by calculating the correlations between the subscales of the CSQ-R and measures of pain (numerical rating scale), disability (Sickness Impact Profile – Roland Scale), depression (Center for Epidemiological Studies – Depression Scale) and coping (Chronic Pain Coping Inventory) (Pearson’s correlation). RESULTS: Confirmatory factor analysis revealed that the CSQ-R model had an acceptable data-model fit (comparative fit index and normed fit index ≤0.90, root mean square error of approximation ≥0.08). Cronbach’s alpha was satisfactory (CSQ-R 0.914 to 0.961), and the intraclass correlation coefficients were good/excellent (CSQ-R 0.850 to 0.918). As expected, the correlations with the numerical rating scale, Sickness Impact Profile – Roland Scale, Center for Epidemiological Studies – Depression Scale and Chronic Pain Coping Inventory highlighted the adaptive and maladaptive properties of most of the CSQ-R subscales. CONCLUSION: The CSQ-R was successfully translated into Italian. The translation proved to have good factorial structure, and its psychometric properties are similar to those of the original and other adapted versions. Its use is recommended for clinical and research purposes in Italy and abroad. PMID:24761430

  17. The usefulness of ICG video angiography in the surgical treatment of superior cluneal nerve entrapment neuropathy: technical note.

    PubMed

    Kim, Kyongsong; Isu, Toyohiko; Chiba, Yasuhiro; Morimoto, Daijiro; Ohtsubo, Seiji; Kusano, Mitsuo; Kobayashi, Shiro; Morita, Akio

    2013-11-01

    Superior cluneal nerve (SCN) entrapment neuropathy is a known cause of low back pain. Although surgical release at the entrapment point of the osteofibrous orifice is effective, intraoperative identification of the thin SCN in thick fat tissue and confirmation of sufficient decompression are difficult. Intraoperative indocyanine green video angiography (ICG-VA) is simple, clearly demonstrates the vascular flow dynamics, and provides real-time information on vascular patency and flow. The peripheral nerve is supplied from epineurial vessels around the nerve (vasa nervorum), and the authors now present the first ICG-VA documentation of the technique and usefulness of peripheral nerve neurolysis surgery to treat SCN entrapment neuropathy in 16 locally anesthetized patients. Clinical outcomes were assessed with the Roland-Morris Disability Questionnaire before surgery and at the latest follow-up after surgery. Indocyanine green video angiography was useful for identifying the SCN in fat tissue. It showed that the SCN penetrated and was entrapped by the thoracolumbar fascia through the orifice just before crossing over the iliac crest in all patients. The SCN was decompressed by dissection of the fascia from the orifice. Indocyanine green video angiography visualized the SCN and its termination at the entrapment point. After sufficient decompression, the SCN was clearly visualized on ICG-VA images. Low back pain improved significantly, from a preoperative Roland-Morris Questionnaire score of 13.8 to a postoperative score of 1.3 at the last follow-up visit (p < 0.05). The authors suggest that ICG-VA is useful for the inspection of peripheral nerves such as the SCN and helps to identify the SCN and to confirm sufficient decompression at surgery for SCN entrapment. PMID:24053371

  18. Seventeenth workshop on geothermal reservoir engineering: Proceedings

    SciTech Connect

    Ramey, H.J. Jr.; Kruger, P.; Miller, F.G.; Horne, R.N.; Brigham, W.E.; Cook, J.W.

    1992-01-31

    PREFACE The Seventeenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 29-31, 1992. There were one hundred sixteen registered participants which equaled the attendance last year. Participants were from seven foreign countries: Italy, Japan, United Kingdom, France, Belgium, Mexico and New Zealand. Performance of many geothermal fields outside the United States was described in the papers. The Workshop Banquet Speaker was Dr. Raffaele Cataldi. Dr. Cataldi gave a talk on the highlights of his geothermal career. The Stanford Geothermal Program Reservoir Engineering Award for Excellence in Development of Geothermal Energy was awarded to Dr. Cataldi. Dr. Frank Miller presented the award at the banquet. Thirty-eight papers were presented at the Workshop with two papers submitted for publication only. Dr. Roland Horne opened the meeting and the key note speaker was J.E. ''Ted'' Mock who discussed the DOE Geothermal R. & D. Program. The talk focused on aiding long-term, cost effective private resource development. Technical papers were organized in twelve sessions concerning: geochemistry, hot dry rock, injection, geysers, modeling, and reservoir mechanics. Session chairmen were major contributors to the program and we thank: Sabodh Garg., Jim Lovekin, Jim Combs, Ben Barker, Marcel Lippmann, Glenn Horton, Steve Enedy, and John Counsil. The Workshop was organized by the Stanford Geothermal Program faculty, staff, and graduate students. We wish to thank Pat Ota, Ted Sumida, and Terri A. Ramey who also produces the Proceedings Volumes for publication. We owe a great deal of thanks to our students who operate audiovisual equipment and to Francois Groff who coordinated the meeting arrangements for the Workshop. Henry J. Ramey, Jr. Roland N. Horne Frank G. Miller Paul Kruger William E. Brigham Jean W. Cook -vii

  19. Efficacy and safety of tanezumab in the treatment of chronic low back pain.

    PubMed

    Katz, Nathaniel; Borenstein, David G; Birbara, Charles; Bramson, Candace; Nemeth, Mary Anne; Smith, Mike D; Brown, Mark T

    2011-10-01

    Increased nerve growth factor levels are associated with chronic pain conditions, including chronic low back pain (LBP). This study examined safety and analgesic efficacy of tanezumab, a humanized anti-nerve growth factor antibody, in adults with chronic LBP. Patients received intravenous tanezumab 200 μg/kg plus oral placebo (n=88), intravenous placebo plus oral naproxen 500 mg twice a day (n=88), or intravenous placebo plus oral placebo (n=41). Primary outcome was average LBP intensity (aLBPI) at Week 6. Secondary outcomes were proportion of patients with ≥30% or ≥50% reduction in aLBPI, Roland-Morris Disability Questionnaire and Brief Pain Inventory-short form scores, Patients' Global Assessment of LBP, Patients' Global Evaluation of study medication, and rescue medication use. Mean aLBPI change from baseline to Week 6 was greater with tanezumab vs naproxen (P=0.004) and placebo (P<0.001). Greater proportions of patients reported ≥30% and ≥50% reduction in aLBPI with tanezumab vs naproxen (P≤0.013) and placebo (P<0.001), and greater improvements in Roland-Morris Disability Questionnaire (P<0.001) and other secondary outcomes except rescue medication use. Tanezumab was associated with adverse events (AEs) of abnormal peripheral sensation that were generally mild and resolved before study completion; however, there were no serious AEs. Nine patients (4 of whom were tanezumab-treated) discontinued due to AEs. In conclusion, tanezumab resulted in analgesic efficacy that was clinically and statistically superior to placebo and naproxen in patients with chronic LBP. Tanezumab clinical development is on regulatory hold due to AEs in osteoarthritis patients. PMID:21696889

  20. Surface and interface structure of diblock copolymer brushes

    NASA Astrophysics Data System (ADS)

    Akgun, Bulent

    The main objective of the work presented in this thesis is to understand the surface and interface structure and dynamics of diblock copolymer brushes (DCBs). DCBs are stimuli-responsive materials and the surface properties of a DCB can be changed from those characteristic of one polymer block to those characteristic of the other one by treating the DCB with a solvent selective for one of its blocks. For this purpose, polystyrene- block-polyacrylate or polyacrylate-block-polystyrene brushes were synthesized using the "grafting from" technique in combination with atom transfer radical polymerization (ATRP). In the first part of this project the internal structure of DCBs after the synthesis and surface rearrangement were investigated using neutron reflectivity (NR) and grazing incidence small angle X-ray scattering (GISAXS). It was found that the internal brush structure depends strongly on the synthesis sequence of polymer blocks and the value of chiN. For small values of chiN (chiN ≤ 11), a model of two layers with an interfacial region of finite width provides a good description of the data. The interface width is found to be larger for DCBs which have the polymer block with the lower surface energy synthesized next to the substrate. A three layer model must be used to describe the structure of DCBs of larger chiN values (chiN ≤ 23) and of sufficiently asymmetric composition. The necessity of including a third layer is consistent with the presence of a lateral ordering of some type in the center of the brush, as evidenced by correlation peaks in the GISAXS data. The spacing of the in-plane ordering varies with the thickness of the poly(methyl acrylate) (PMA) block. After a DCB is treated with a selective solvent, Bragg rods appear in the GISAXS pattern. The appearance of Bragg rods indicates the formation of a new 2D structure which has a lateral spacing on the order of the total thickness of the brush. The Bragg rods disappear upon heating to 80

  1. Evaluation of the 2008 Predictions of Run-Timing and Survival of Wild Migrant Yearling Chinook and Steelhead on the Columbia and Snake Rivers.

    SciTech Connect

    Beer, W. Nicholas; Iltis, Susannah; Anderson, James J.

    2009-01-01

    Columbia Basin Research uses the COMPASS model on a daily basis during the outmigration of Snake River Chinook and steelhead smolts to predict downstream passage and survival. Fish arrival predictions and observations from program RealTime along with predicted and observed environmental conditions are used to make in-season predictions of arrival and survival to various dams in the Columbia and Snake Rivers. For 2008, calibrations of travel and survival parameters for two stocks of fish-Snake River yearling PIT-tagged wild chinook salmon (chin1pit) and Snake River PIT-tagged steelhead (lgrStlhd)-were used to model travel and survival of steelhead and chinook stocks from Lower Granite Dam (LWG) or McNary Dam (MCN) to Bonneville Dam (BON). This report summarizes the success of the COMPASS/RealTime process to model these migrations as they occur. We compared model results on timing and survival to data from two sources: stock specific counts at dams and end-of-season control survival estimates (Jim Faulkner, NOAA, pers. comm. Dec. 16, 2008). The difference between the predicted and observed day of median passage and the Mean Absolute Deviation (MAD) between predicted and observed arrival cumulative distributions are measures of timing accuracy. MAD is essentially the average percentage error over the season. The difference between the predicted and observed survivals is a measure of survival accuracy. Model results and timing data were in good agreement from LWG to John Day Dam (JDA). Predictions of median passage days for the chin1pit and lgrStlhd stocks were 0 and 2 days (respectively) later than observed. MAD for chin1pit and lgrStlhd stocks at JDA were 2.3% and 5.9% (respectively). Between JDA and BON modeling and timing data were not as well matched. At BON, median passage predictions were 6 and 10 days later than observed and MAD values were 7.8% and 16.0% respectively. Model results and survival data were in good agreement from LWG to MCN. COMPASS predicted

  2. Hormonal and behavioral changes induced by acute and chronic experimental infestation with Psoroptes cuniculi in the domestic rabbit Oryctolagus cuniculus

    PubMed Central

    2013-01-01

    Background Parasitic diseases are important in animal production because they cause high economic losses. Affected animals often exhibit stereotypical behavioral alterations such as anorexia and inactivity, among others. Among the diseases that commonly affect domestic rabbits is mange, which is caused by the mite Psoroptes cuniculi. Therefore, within the context of the host-parasite relationship, it is critical to understand the mechanisms involved in the alteration of host behavior, in order to better utilize sick animal behavior as a strategy for diagnosis and treatment of disease. Methods Rabbits were infested placing mites in the ear conduct. We characterized changes in exploratory behavior and scent marking evoked by acute (1-9 days) and chronic (25-33 days) experimental infestation. Behavior was recorded during ten minutes while the animals were in a 120 cm × 120 cm open field arena divided into 9 squares. Serum cortisol was measured individually using radioimmunoassay kits. Locomotor activity, chinning, rearing and body weight were compared using a Friedman test, the effect of treatment (infested versus non-infested) across time was analyzed using a repeated measures ANOVA, and the Pearson test was used to determine whether chinning and ambulation scores were significantly correlated. Serum cortisol levels and food consumption were analyzed with a Kruskal-Wallis test and body temperature was analyzed with an ANOVA test. Results We observed a significant decrease in rearing behavior as early as two days post-infestation, while chinning and locomotor activity were significantly decreased four days post-infestation. Chronic infestation was associated with decreased food intake, significant weight loss, and a trend toward increased serum cortisol levels, while no changes were observed in body temperature. Conclusions The presence of visible lesions within the ear canal is commonly used to detect mite infestation in rabbits, but this is possible only after

  3. IR/UV laser spectroscopy of secondary structures in isolated peptide chains: an original insight onto the non-covalent interactions that shape proteins

    NASA Astrophysics Data System (ADS)

    Gloaguen, Eric

    2009-03-01

    Protein shape and flexibility is governed by non-covalent interactions that need to be accurately described by molecular structure simulations. However, the computational methods adapted for large molecules like proteins have difficulties to reproduce precisely these non-covalent interactions and cannot reach the level of structural details required to address many biological relevant issues. Special efforts are currently done to document these interactions by carrying out experiments on simple model systemsootnotetextJ.-P. Schermann, Spectroscopy and modeling of biomolecular building blocks. (Elsevier, 2007). in order to help the development of reliable DFT-D calculationsootnotetextP. Jurecka, J. Cerny, P. Hobza, and D. R. Salahub, J. Comput. Chem. 28 (2), 555 (2007); S. Grimme, J. Comput. Chem. 27 (15), 1787 (2006). and polarisable force fields explorations.ootnotetextN. Gresh, G. A. Cisneros, T. A. Darden, and J. P. Piquemal, Journal of Chemical Theory and Computation 3 (6), 1960 (2007). The selectivity of the IR/UV double resonance spectroscopy of gas phase isolated peptides (less than 10 residues) laser desorbed and cooled in a molecular beam enables us to discriminate the spectral signature of the several H-bonds shaping the molecular conformation. This can be carried out for each conformation detected in the molecular beam, providing a precise IR fingerprint of the intramolecular hydrogen bond network of these moleculesootnotetextW. Chin, F. Piuzzi, I. Dimicoli, and M. Mons, Phys. Chem. Chem. Phys. 8, 1 (2006); W. Chin, M. Mons, J.-P. Dognon, F. Piuzzi, B. Tardivel, and I. Dimicoli, Phys. Chem. Chem. Phys. 6, 2700 (2004); E. Gloaguen, F. Pagliarulo, V. Brenner, W. Chin, F. Piuzzi, B. Tardivel, and M. Mons, PCCP 9, 4491 (2007).^ and references therein These IR frequencies are directly compared to the calculated frequencies of selected conformations of the isolated molecule for assignment purpose. Once the experimentally observed conformations are known, the

  4. Intracortical and Thalamocortical Connections of the Hand and Face Representations in Somatosensory Area 3b of Macaque Monkeys and Effects of Chronic Spinal Cord Injuries.

    PubMed

    Chand, Prem; Jain, Neeraj

    2015-09-30

    Brains of adult monkeys with chronic lesions of dorsal columns of spinal cord at cervical levels undergo large-scale reorganization. Reorganization results in expansion of intact chin inputs, which reactivate neurons in the deafferented hand representation in the primary somatosensory cortex (area 3b), ventroposterior nucleus of the thalamus and cuneate nucleus of the brainstem. A likely contributing mechanism for this large-scale plasticity is sprouting of axons across the hand-face border. Here we determined whether such sprouting takes place in area 3b. We first determined the extent of intrinsic corticocortical connectivity between the hand and the face representations in normal area 3b. Small amounts of neuroanatomical tracers were injected in these representations close to the electrophysiologically determined hand-face border. Locations of the labeled neurons were mapped with respect to the detailed electrophysiological somatotopic maps and histologically determined hand-face border revealed in sections of the flattened cortex stained for myelin. Results show that intracortical projections across the hand-face border are few. In monkeys with chronic unilateral lesions of the dorsal columns and expanded chin representation, connections across the hand-face border were not different compared with normal monkeys. Thalamocortical connections from the hand and face representations in the ventroposterior nucleus to area 3b also remained unaltered after injury. The results show that sprouting of intrinsic connections in area 3b or the thalamocortical inputs does not contribute to large-scale cortical plasticity. Significance statement: Long-term injuries to dorsal spinal cord in adult primates result in large-scale somatotopic reorganization due to which chin inputs expand into the deafferented hand region. Reorganization takes place in multiple cortical areas, and thalamic and medullary nuclei. To what extent this brain reorganization due to dorsal column injuries

  5. Efficacy, patient-reported outcomes and safety profile of ATX-101 (deoxycholic acid), an injectable drug for the reduction of unwanted submental fat: results from a phase III, randomized, placebo-controlled study

    PubMed Central

    Ascher, B; Hoffmann, K; Walker, P; Lippert, S; Wollina, U; Havlickova, B

    2014-01-01

    Background Unwanted submental fat (SMF) may result in an unattractive chin profile and dissatisfaction with appearance. An approved and rigorously tested non-surgical method for SMF reduction is lacking. Objective To evaluate the efficacy and safety of ATX-101 for the pharmacological reduction of unwanted SMF in a phase III randomized, double-blind, placebo-controlled study. Methods Patients (n = 360) with moderate or severe SMF were randomized to receive ATX-101 1 or 2 mg/cm2 or placebo injected into their SMF for up to four treatments ∼28 days apart, with a 12-week follow-up. Coprimary efficacy endpoints were the proportions of treatment responders, defined as a ≥1-point reduction in SMF on the Clinician-Reported Submental Fat Rating Scale (CR-SMFRS), and those satisfied with their appearance in association with their face and chin after treatment on the Subject Self-Rating Scale (SSRS score ≥4). Secondary efficacy endpoints included a ≥1-point improvement in SMF on the Patient-Reported Submental Fat Rating Scale (PR-SMFRS) and changes in the Patient-Reported Submental Fat Impact Scale (PR-SMFIS). Additional patient-reported outcomes and changes in the Skin Laxity Rating Scale were recorded. Adverse events (AEs) and laboratory test results were monitored. Results Compared with placebo, a greater proportion of patients treated with ATX-101 1 and 2 mg/cm2 showed a ≥1-point improvement in CR-SMFRS (58.3% and 62.3%, respectively, vs. 34.5% with placebo; P < 0.001) and patient satisfaction (SSRS score ≥4) with the appearance of their face and chin (68.3% and 64.8%, respectively, vs. 29.3%; P < 0.001). Patient-reported secondary efficacy endpoints showed significant improvements in SMF severity (PR-SMFRS; P = 0.009 for ATX-101 1 mg/cm2, P < 0.001 for ATX-101 2 mg/cm2 vs. placebo) and emotions and perceived self-image (PR-SMFIS; P < 0.001). No overall worsening of skin laxity was observed. AEs were mostly transient, mild to moderate in

  6. Convolution and non convolution Perfectly Matched Layer techniques optimized at grazing incidence for high-order wave propagation modelling

    NASA Astrophysics Data System (ADS)

    Martin, Roland; Komatitsch, Dimitri; Bruthiaux, Emilien; Gedney, Stephen D.

    2010-05-01

    by 40% in 2D comparing to the GFPML split formulation of [4]. Examples of waves propagating in heterogeneous thin slices in presence of free surface are shown. We also applied this CPML technique to more complex models like poroelastic [5] or viscoelastic [6] media based on a fourth-order staggered finite-difference method. For the two-dimensional Biot poroelastic equations we show its efficiency for both non dissipative and dissipative Biot porous models. For the three-dimensional viscoelastic seismic wave equation, the time marching equations of the standard linear solid mechanisms used do not need to be split and only the memory variables associated with velocity derivatives are stored at each time step. In the case of more than one damping mechanism, we are able to reduce memory storage by more than 70% in the PML regions in 3D simulations compared to split PMLs optimized at grazing incidence. Benchmarks of the CPML technique have been validated in poroelastic or viscoelastic thin mesh slices. These unsplit CPMLs are usually computed based on a second-order finite-difference time scheme. However, in many situations like very long time simulations, it is of interest to increase the accuracy of the method by increasing the order of the time marching and spatial discretizations. The CPML is not able to be increased at high orders because of its convolution formulation. In [7] we study then how to build a new unsplit PML (ADE-PML/Auxiliary Differential Equations PML) that remains optimized at grazing incidence based on a high-order time scheme like the fourth-order Runge-Kutta scheme. At second order in time we demonstrate that CPML and ADE-PML are equivalent. At second or high order discretization in time, explicit and semi-implicit solutions can be obtained with very good accuracy. References [1]Dimitri Komatitsch and Roland Martin. An unsplit convolutional Perfectly Matched Layer improved at grazing incidence for the differential anisotropic elastic wave equation

  7. Suspected wood poisoning caused by Simarouba amara (marupá/caixeta) shavings in two dogs with erosive stomatitis and dermatitis.

    PubMed

    Declercq, Jan

    2004-06-01

    Two male Labrador retrievers developed bleeding erosions/ulcerations involving the oral mucosa, mucocutaneous junctions of the lips, nose, prepuce and anus, ulcerated nodules on the chin, and crusting lesions on the elbows, hocks and scrotum. One of the dogs was anorexic and depressed, had haematological abnormalities consistent with damage to the liver and signs of neurological disease. As these dogs had recently been exposed to bedding containing Simarouba amara shavings and because of the striking similarities of clinical signs to those described for horses, a probable diagnosis of wood poisoning was made. This assumption was supported by the clinical course as healing of skin lesions occurred when the dogs were no longer exposed to the bedding. PMID:15214956

  8. Effect of Hydrogen-Bonding Junctions on Microphase Separation in Block Copolymers

    NASA Astrophysics Data System (ADS)

    Stone, Greg; Hedrick, Jim; Nederberg, Fredrik; Balsara, Nitash

    2008-03-01

    The morphology of poly(styrene-block- trimethylene carbonate) (PS-PTMC) copolymers with and without thiourea groups at the junction between the blocks was studied by a combination of small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). The thiourea groups are known to exhibit inter-molecular hydrogen bonding. We demonstrate that the presence of thiourea groups results in increased segregation between PS and PTMC blocks. We focus on symmetric systems with total molecular weights in the 5 kg/mol range. In conventional block copolymers without hydrogen bonding groups it is difficult to obtain strong segregation in low molecular weight systems because the product chi*N controls segregation (chi is the Flory-Huggins interaction parameter and N is the number of monomers per chain). The incorporation of hydrogen bonding groups may provide a route for the generation of patterns with small, sharply defined features using block copolymers.

  9. Extrapolated gradientlike algorithms for molecular dynamics and celestial mechanics simulations.

    PubMed

    Omelyan, I P

    2006-09-01

    A class of symplectic algorithms is introduced to integrate the equations of motion in many-body systems. The algorithms are derived on the basis of an advanced gradientlike decomposition approach. Its main advantage over the standard gradient scheme is the avoidance of time-consuming evaluations of force gradients by force extrapolation without any loss of precision. As a result, the efficiency of the integration improves significantly. The algorithms obtained are analyzed and optimized using an error-function theory. The best among them are tested in actual molecular dynamics and celestial mechanics simulations for comparison with well-known nongradient and gradient algorithms such as the Störmer-Verlet, Runge-Kutta, Cowell-Numerov, Forest-Ruth, Suzuki-Chin, and others. It is demonstrated that for moderate and high accuracy, the extrapolated algorithms should be considered as the most efficient for the integration of motion in molecular dynamics simulations. PMID:17025782

  10. Conservative treatment of patients with periapical lesions associated with extraoral sinus tracts.

    PubMed

    Soares, Janir Alves; de Carvalho, Fabíola Bastos; Pappen, Fernanda Geraldes; Araújo, Gustavo Sivieri; de Pontes Lima, Regina K; Rodrigues, Vivian M Tellaroli; de Toledo Leonardo, Renato

    2007-12-01

    This paper describes the clinical courses of three cases with extra-oral sinus tract formation, from diagnosis and treatment to short-term follow-up and evaluation. All teeth involved had periradicular radiolucent areas noted on radiographic examination and extra-oral sinus tracts appearing on the chin with exudation and unpleasant aesthetic appearance. The adopted treatment protocol included treating the sinus tract surface simultaneously with the root canal therapy. After root canal shaping using 5.25% sodium hypochlorite solution, calcium hydroxide-based pastes associated with different vehicles were inserted into the root canal for 4 months, and were changed monthly. All the sinus tracts healed in 7 to 10 days. The apical lesions were completely repaired in a maximum period of 24 months. The treatment adopted provided a complete healing of the periapical lesions in a short follow-up period. Surgical repair of the cutaneous sinus tract was therefore unnecessary. PMID:18076581

  11. Anomalous effect in a hydrogenic impurity in a spherical quantum dot under the influence of parallel electric and magnetic fields

    NASA Astrophysics Data System (ADS)

    Ho, Y. K.; Lin, Y. C.; Sahoo, S.

    2004-03-01

    We will present calculations for the energy levels and the resonance widths of the quasi-bound states of a confined hydrogenic impurity in an isolate quantum dot subjected to external electric and magnetic fields in parallel directions. A method of complex absorbing potential [1] is used in our present investigation. Resonance positions and widths are reported for a wide range of dot sizes to demonstrate that Stark resonances in a confined hydrogen atom leads to a new phenomenon as a consequence of the quantum confinement of the atom, contrary to the Stark effect on a free atom. * This work was supported by the National Science Council of ROC. [1] S. Sahoo and Y. K. Ho, Chin. J. Phys. 38, 127 (2000); J. Phys. B 33, 2195 (2000); J. Phys. B 33, 5151 (2000); Phys. Rev. A 65, 015403 (2001);

  12. Direct Measurement of the Mass Difference of 163Ho and 163Dy Solves the Q -Value Puzzle for the Neutrino Mass Determination

    NASA Astrophysics Data System (ADS)

    Eliseev, S.; Blaum, K.; Block, M.; Chenmarev, S.; Dorrer, H.; Düllmann, Ch. E.; Enss, C.; Filianin, P. E.; Gastaldo, L.; Goncharov, M.; Köster, U.; Lautenschläger, F.; Novikov, Yu. N.; Rischka, A.; Schüssler, R. X.; Schweikhard, L.; Türler, A.

    2015-08-01

    The atomic mass difference of 163 and 163Dy has been directly measured with the Penning-trap mass spectrometer SHIPTRAP applying the novel phase-imaging ion-cyclotron-resonance technique. Our measurement has solved the long-standing problem of large discrepancies in the Q value of the electron capture in 163Ho determined by different techniques. Our measured mass difference shifts the current Q value of 2555(16) eV evaluated in the Atomic Mass Evaluation 2012 [G. Audi et al., Chin. Phys. C 36, 1157 (2012)] by more than 7 σ to 2833 (30stat)(15sys) eV /c2 . With the new mass difference it will be possible, e.g., to reach in the first phase of the ECHo experiment a statistical sensitivity to the neutrino mass below 10 eV, which will reduce its present upper limit by more than an order of magnitude.

  13. [Craniosynostosis and strabismus].

    PubMed

    Wang, A K; Kang, X L

    2016-08-01

    Craniosynostosis(CS), the premature fusion of cranial sutures leading to an abnormal shape and precocious maturity of skull, is classified into Non-syndromic Craniosynostosis (NSC) and Syndromic Craniosynostoses(SC).NCS only has different abnormality of skull according to which cranial suture is involved while extra malformation of midface and limbs present in SCS. Common SCS contains Crouzon Syndrome, Apert Syndrome, Pfeiffer Sydrome, and etc. The clinical manifestation of CS includes malformation of skull, intracranial hypertension, brain hernia, developmental disorder of cerebral function, strabismus, and etc, while SCS has more complex manifestation. Along with the improvement of multidisciplinary cooperation, the ophthalmic complication of CS, like strabismus, is recognised by oculists gradually. This review is summarizing the clinical manifestation, complicated strabismus, pathogenesis and multidisciplinary cure of CS. (Chin J Ophthalmol, 2016, 52: 626-630). PMID:27562283

  14. A new species of Satyrichthys (Teleostei: Peristediidae) from the Maldives Archipelago (Indian Ocean).

    PubMed

    Pogoreutz, Claudia; Vitecek, Simon; Ahnelt, Harald

    2013-01-01

    A new species of the genus Satyrichthys, Satyrichthys kikingeri sp. nov., is described from the Rasdhoo Atoll, Maldives Archipelago. The new species is placed in a group of Satyrichthys with at least three lip barbels and unequal parietal bones. It differs from its congeners in the combination of the following characters: (1) 3/3 lip and 1/0 chin barbels, (2) 15 fin rays in the second dorsal fin, 13 fin rays in the anal fin, (3) 25 bony plates in the dorsal, 29 in the upper lateral and 20 in the lower lateral rows, (4) 21st to 28th bony plates in the upper lateral row with forward directed spines and (5) parietal bones unequal in size on midline. Satyrichthys kikingeri sp. nov. is the first Satyrichthys species reported from the Republic of the Maldives. PMID:26312277

  15. Follicular mucinosis: an important differential diagnosis of leprosy in an endemic area*

    PubMed Central

    Westphal, Danielle Cristine; Pennini, Silmara Navarro; de Souza, Petra Pereira; Maquiné, Gustavo Ávila; Schettini, Antônio Pedro Mendes; Santos, Mônica

    2015-01-01

    Primary follicular mucinosis is a rare dermatosis characterized by the accumulation of mucin in the follicular epithelium and sebaceous glands. Clinically, it is characterized by the presence of papules or well-circumscribed and infiltrated plaques. In this paper, we report the case of a female patient, seven years old, evolving for three months with an asymptomatic, erythematous and infiltrated plaque located in the chin region. The research of thermal, pain and tactile sensitivity was inconclusive. Histological findings confirmed the diagnosis of follicular mucinosis. There was regression of the lesion with the use of medium potency topical corticosteroids for 20 days. The pathogenesis of follicular mucinosis remains unknown, being in some cases associated with lymphoproliferative disorders. In endemic areas of leprosy, isolated and infiltrated follicular mucinosis lesions should be further differentiated from leprosy. PMID:26312699

  16. SplitRFLab: A MATLAB GUI toolbox for receiver function analysis based on SplitLab

    NASA Astrophysics Data System (ADS)

    Xu, Mijian; Huang, Hui; Huang, Zhouchuan; Wang, Liangshu

    2016-02-01

    We add new modules for receiver function (RF) analysis in SplitLab toolbox, which includes the manual RF analysis module, automatic RF analysis and related quality control modules, and H- k stacking module. The updated toolbox (named SplitRFLab toolbox), especially its automatic RF analysis module, could calculate the RFs quickly and efficiently, which is very useful in RF analysis with huge amount of seismic data. China is now conducting the ChinArray project that plans to deploy thousands of portable stations across Chinese mainland. Our SplitRFLab toolbox may obtain reliable RF results quickly at the first time, which provide essentially new constraint to the crustal and mantle structures.

  17. Applications of coronoid process as a bone graft in maxillofacial surgery.

    PubMed

    Sabhlok, Samrat; Waknis, Pushkar P; Gadre, Kiran S

    2014-03-01

    The coronoid process can be easily harvested as a donor bone by an intraoral approach during many maxillofacial surgery procedures. The purpose of this study was to evaluate the utility of autogenous coronoid process bone grafts for maxillofacial reconstructive surgery. Twelve patients, who underwent coronoid process grafts for reconstruction of maxillofacial deformities due to trauma, alveolar atrophy, or temporomandibular joint ankylosis, were included in the study. There were 3 orbital defects after extended maxillectomy, 1 blowout fracture of the orbit, 2 cases of reconstruction after temporomandibular joint ankylosis surgery, 1 case of additional chin augmentation following horizontal flip genioplasty, 1 defect of anterior wall of maxilla due to trauma, 2 mandibular defects, and 2 cases of bone augmentation for implants.We recommend the use of coronoid process of the mandible as a source for autogenous bone graft as it can provide sufficient bone in quantity and quality for selected maxillofacial reconstructions. PMID:24621702

  18. Prevalence of milia and palatal and gingival cysts in Spanish newborns.

    PubMed

    Monteagudo, Benigno; Labandeira, Javier; Cabanillas, Miguel; Acevedo, Antonio; León-Muiños, Elvira; Toribio, Jaime

    2012-01-01

    We performed a descriptive survey of 1,000 consecutive newborns cared for in the first 3 days of life in the health area of Ferrol (in northwest Spain) to assess the prevalence and most-frequent locations of oral cysts and milia and to study the influence of different maternal and neonatal parameters in the development of these lesions. Prevalence of palatal, gingival, and cutaneous cysts was 53.7%, 13.4%, and 16.6%, respectively. Milia were predominantly located on the cheeks, chin, and forehead. We found a frequent association between palatal and gingival cysts but not between oral cysts and milia. Neonatal factors such as sex, weight at birth, and gestational age can significantly influence the development of palatal and gingival cysts. PMID:21995277

  19. KSC-04PD-0165

    NASA Technical Reports Server (NTRS)

    2004-01-01

    KENNEDY SPACE CENTER, FLA. A black racer snake slithers away through a patch of dry grass on the grounds of Kennedy Space Center. The Black Racer Snake is one of the fastest, non-venomous snakes in North America. It has a slender body with a slender oval-shaped head and white patch on its chin. It lives in brushy areas, rocky hillsides and meadows, and underneath boards or tin around old buildings. Black Racers feed on insects, eggs, mice, frogs and lizards. Kennedy shares a boundary with the Merritt Island National Wildlife Refuge, home to some of the nations rarest and most unusual species of wildlife. In addition, the Refuge supports 19 endangered or threatened wildlife species on Federal or State lists, more than any other single refuge in the U.S.

  20. Redetermination of 2-methyl-4-nitro­pyridine N-oxide

    PubMed Central

    Peukert, Max; Seichter, Wilhelm; Weber, Edwin

    2014-01-01

    An improved crystal structure of the title compound, C6H6N2O3, is reported. The structure, previously solved [Li et al. (1987 ▶). Jiegou Huaxue (Chin. J. Struct. Chem.), 6, 20–24] in the ortho­rhom­bic space group Pca21 and refined to R = 0.067, has been solved in the ortho­rhom­bic space group Pbcm with data of enhanced quality, giving an improved structure (R = 0.0485). The mol­ecule adopts a planar conformation with all atoms lying on a mirror plane. The crystal structure is composed of mol­ecular sheets extending parallel to the ab plane and connected via C—H⋯O contacts involving ring H atoms and O atoms of the N-oxide and nitro groups, while van der Waals forces consolidate the stacking of the layers. PMID:24826136

  1. Some psychological considerations on the behavior of the human eye in the case of an irradiation from a monochromatic optical device

    NASA Astrophysics Data System (ADS)

    Reidenbach, Hans-Dieter

    2005-04-01

    In investigations of the eye blink reflex it was found that there exists a dependence on the wavelength of the applied laser device considering the frequency of this physiological reaction. The experimentally acquired correlation shows a much weaker association with the V(λ)-curve than it is normally valid for photobic vision. The experimentally obtained results might be explained by the well-known fundamental WEBER-FECHNER-law of psychophysics and will be given as a blink reflex function in accordance with the STEVENS power law. The results of 788 measurements at 670 nm, 635 nm and 532 nm in lab and field trials in which the head of the tested volunteers was fixed on a chin rest were confirmed in two additionally performed studies with 516 volunteers with an unrestrained head in which either a direct intrabeam viewing or an eye-tracking method was applied in order to simulate typical irradiation situations.

  2. The Burmese medic: an international physician assistant analogue.

    PubMed

    Pedersen, Donald M; Pedersen, Kathy J; Santitamrongpan, Verapan

    2012-01-01

    Although there have been recent democratic reforms in Myanmar (formerly known as Burma), for nearly 60 years there has been a consistent history of human rights violations as part of a civil war waged by the Myanmar military, known as the Tatmadaw. Approximately 3,500 villages have been destroyed by the Tatmadaw during the half-century of civil war. Oppression against minority groups, including the Karen, Karenni, Kachin, Mon, Shan, Chin, and Muslims has adversely affected the health outcomes of these vulnerable populations. Since the mid 1990s, medics have been providing care for the ethnic minorities who were displaced from their homes by the civil war and who live in the jungles of eastern Burma as well as in the refugee camps and towns in the border areas of Thailand. This article will look at how these medics are providing care similar to that provided by physician assistants in the United States. PMID:23072072

  3. Realization of the ergonomics design and automatic control of the fundus cameras

    NASA Astrophysics Data System (ADS)

    Zeng, Chi-liang; Xiao, Ze-xin; Deng, Shi-chao; Yu, Xin-ye

    2012-12-01

    The principles of ergonomics design in fundus cameras should be extending the agreeableness by automatic control. Firstly, a 3D positional numerical control system is designed for positioning the eye pupils of the patients who are doing fundus examinations. This system consists of a electronically controlled chin bracket for moving up and down, a lateral movement of binocular with the detector and the automatic refocusing of the edges of the eye pupils. Secondly, an auto-focusing device for the object plane of patient's fundus is designed, which collects the patient's fundus images automatically whether their eyes is ametropic or not. Finally, a moving visual target is developed for expanding the fields of the fundus images.

  4. Bilateral patellar tendon-bearing Symes-type prostheses in a severe case of Freeman-Sheldon syndrome in a 21-year-old woman presenting with uncorrectable equinovarus.

    PubMed

    McCormick, Rodger J; Poling, Mikaela I; Chamberlain, Robert L

    2015-01-01

    Described is the use of bilateral patellar tendon-bearing Symes-type prostheses in a severe case of Freeman-Sheldon syndrome (FSS) in a 21-year-old woman presenting with uncorrectable equinovarus and multiple surgical sequela of the lower extremities. FSS is considered a type of myopathic distal arthrogryposis; diagnosis requires the following: microstomia, whistling-face appearance, H-shaped chin dimpling, nasolabial folds, and multiple contractures of the hands and feet. Spinal deformities, metabolic and gastroenterological problems, other dysmorphic craniofacial characteristics, and visual and auditory impairments, are frequent findings. We highlight what we believe to be a unique approach to enhancing the patient's ability to ambulate and engage in physical activity, particularly critical determinates of wellness and long-term functional outcome in FSS, when the feet are non-correctable but not amputated. Important implications exist for physiatrists, other rehabilitation providers and surgeons regarding this likely under-diagnosed syndrome. PMID:26178231

  5. Bilateral multicystic renal dysplasia with potter sequence. A case with penile agenesis.

    PubMed

    Dursun, Ahmet; Ermis, Bahri; Numanoglu, Varim; Bahadir, Burak; Seckiner, Ilker

    2006-11-01

    Hereditary renal adysplasia (HRA) is a rare autosomal dominant condition. Patients have several other anomalies including Potter facies, thoracic, cardiac, and extremity deformities. The case present dysmorphic facial features such as hypertelorism, prominent epicanthic folds, a flat and broad nose, choanal stenosis, low-set ears, and a receding chin. He had femoral bowing, hypoplastic right tibia and agenesis of the right foot. He had rich and thick skin. He had also a dysplastic empty scrotum, penile agenesis, and anal atresia. The autopsy revealed pulmonary hypoplasia, ventricular septal defect, bilateral multicystic renal dysplasia, agenesis of both ureter and bladder, intraabdominal testicles, and a single umbilical artery. The penile agenesis was first reported, and including the consanguinity in the parents might further delineate the bilateral multicystic HRA. Vater/caudal regression anomalies, Mullerian duct/aplasia, unilateral renal agenesis, and cervicothoracic somite anomalies association, and Coloboma, heart anomaly, choanal atresia, retardation, genital and ear anomalies syndrome has been considered in differential diagnosis. PMID:17106555

  6. Theory for Neutrino Mixing

    NASA Astrophysics Data System (ADS)

    He, Xiao-Gang

    2016-07-01

    Since the discovery of neutrino oscillations, for which Takaaki Kajita and Arthur B. McDonald were awarded the 2015 Nobel prize in physics, tremendous progresses have been made in measuring the mixing angles which determine the oscillation pattern. A lot of theoretical efforts have been made to understand how neutrinos mix with each other. Present data show that in the standard parameterization of the mixing matrix, θ23 is close to π/4 and the CP violating phase is close to ‑ π/2. In this talk I report results obtained in arXiv:1505.01932 (Phys. Lett. B750(2015)620) and arXive:1404.01560 (Chin. J. Phys.53(2015)100101) and discuss some implications for theoretical model buildings for such mixing pattern. Specific examples for neutrino mixing based on A4 family symmetry are given.

  7. Thermal Testing and Analysis of an Efficient High-Temperature Multi-Screen Internal Insulation

    NASA Technical Reports Server (NTRS)

    Weiland, Stefan; Handrick, Karin; Daryabeigi, Kamran

    2007-01-01

    Conventional multi-layer insulations exhibit excellent insulation performance but they are limited to the temperature range to which their components reflective foils and spacer materials are compatible. For high temperature applications, the internal multi-screen insulation IMI has been developed that utilizes unique ceramic material technology to produce reflective screens with high temperature stability. For analytical insulation sizing a parametric material model is developed that includes the main contributors for heat flow which are radiation and conduction. The adaptation of model-parameters based on effective steady-state thermal conductivity measurements performed at NASA Langley Research Center (LaRC) allows for extrapolation to arbitrary stack configurations and temperature ranges beyond the ones that were covered in the conductivity measurements. Experimental validation of the parametric material model was performed during the thermal qualification test of the X-38 Chin-panel, where test results and predictions showed a good agreement.

  8. Searching arousals: A fuzzy logic approach.

    PubMed

    Chaparro-Vargas, Ramiro; Ahmed, Beena; Penzel, Thomas; Cvetkovic, Dean

    2015-08-01

    This paper presents a computational approach to detect spontaneous, chin tension and limb movement-related arousals by estimating neuronal and muscular activity. Features extraction is carried out by Time Varying Autoregressive Moving Average (TVARMA) models and recursive particle filtering. Classification is performed by a fuzzy inference system with rule-based decision scheme based upon the AASM scoring rules. Our approach yielded two metrics: arousal density and arousal index to comply with standardised clinical benchmarking. The obtained statistics achieved error deviation around ±1.5 to ±30. These results showed that our system can differentiate amongst 3 different types of arousals, subject to inter-subject variability and up-to-date scoring references. PMID:26736862

  9. Dysphagia Management in Acute and Sub-acute Stroke

    PubMed Central

    Vose, Alicia; Nonnenmacher, Jodi; Singer, Michele L.; González-Fernández, Marlís

    2014-01-01

    Swallowing dysfunction is common after stroke. More than 50% of the 665 thousand stroke survivors will experience dysphagia acutely of which approximately 80 thousand will experience persistent dysphagia at 6 months. The physiologic impairments that result in post-stroke dysphagia are varied. This review focuses primarily on well-established dysphagia treatments in the context of the physiologic impairments they treat. Traditional dysphagia therapies including volume and texture modifications, strategies such as chin tuck, head tilt, head turn, effortful swallow, supraglottic swallow, super-supraglottic swallow, Mendelsohn maneuver and exercises such as the Shaker exercise and Masako (tongue hold) maneuver are discussed. Other more recent treatment interventions are discussed in the context of the evidence available. PMID:26484001

  10. An Unusual Method of Suicidal Ligature Strangulation.

    PubMed

    Pramanik, Parthasarathi

    2016-01-01

    This article reports a case of suicidal strangulation by ligature of a 51-year-old woman with a psychiatric disorder. She had been suffering from depression with a history of previous suicidal attempt. The deceased accomplished self-strangulation using two ligatures, with one placed above the other and consisting of a satin fabric and a shoelace. The underlying shoelace ligature was fastened by a secure fixed square knot at the back of the neck. The overlying fabric piece was tied with a half-knot under the chin and was tightened around the neck manually. A detailed investigation and autopsy examination strongly suggests suicide. The case is of interest due to its rarity and uncommon method of execution. PMID:26211537

  11. Direct Measurement of the Mass Difference of (163)Ho and (163)Dy Solves the Q-Value Puzzle for the Neutrino Mass Determination.

    PubMed

    Eliseev, S; Blaum, K; Block, M; Chenmarev, S; Dorrer, H; Düllmann, Ch E; Enss, C; Filianin, P E; Gastaldo, L; Goncharov, M; Köster, U; Lautenschläger, F; Novikov, Yu N; Rischka, A; Schüssler, R X; Schweikhard, L; Türler, A

    2015-08-01

    The atomic mass difference of (163)Ho and (163)Dy has been directly measured with the Penning-trap mass spectrometer SHIPTRAP applying the novel phase-imaging ion-cyclotron-resonance technique. Our measurement has solved the long-standing problem of large discrepancies in the Q value of the electron capture in (163)Ho determined by different techniques. Our measured mass difference shifts the current Q value of 2555(16) eV evaluated in the Atomic Mass Evaluation 2012 [G. Audi et al., Chin. Phys. C 36, 1157 (2012)] by more than 7σ to 2833(30(stat))(15(sys)) eV/c(2). With the new mass difference it will be possible, e.g., to reach in the first phase of the ECHo experiment a statistical sensitivity to the neutrino mass below 10 eV, which will reduce its present upper limit by more than an order of magnitude. PMID:26296112

  12. Traumatic bone cyst of mandible.

    PubMed

    Surej Kumar, L K; Kurien, Nikhil; Thaha, Khaleel Ahamed

    2015-06-01

    The traumatic bone cyst, an uncommon lesion of the jaws, belongs to the category of 'pseudocyst' owing to its lack of a lining epithelial membrane. It is an asymptomatic lesion, which is often diagnosed accidentally during routine radiological examination commonly present in the posterior mandible as a unilocular radiolucency with scalloping borders. The exact etiopathogenesis of the lesion is still debated, though the role of trauma is often associated. Here we report a rare case of traumatic bone cyst in the anterior mandible, in a 16-year-old female patient with a previous history of trauma to chin; diagnosed and treated successfully in our surgical unit. The case is discussed in relation to its clinical presentation, etiopathogenesis, diagnosis, management and prognosis. PMID:26028875

  13. Study of shockwave method for diagnosing the radiation fields of laser-driven gold hohlraums

    NASA Astrophysics Data System (ADS)

    Li, Yongsheng; Lan, Ke; Huo, Wenyi; Lai, Dongxian; Gao, Yaoming; Pei, Wenbing

    2013-11-01

    Besides the routinely used broad-band x-ray spectrometer (Dante or SXS), ablative shock-wave method is often used to diagnose the radiation fields of laser-driven Hohlraums. The x-ray ablation process of Aluminum and Titanium is studied numerically with a 1-D radiation hydrodynamic code RDMG [F. Tinggui et al., Chin. J. Comput. Phys. 16, 199 (1999)], based on which a new scaling relation of the equivalent radiation temperature with the ablative shock velocity in Aluminum plates is proposed, and a novel method is developed for determining simultaneously the radiation temperature and the M-band (2-4 keV) fraction in laser-driven gold Hohlraums.

  14. New useful special function in quantum optics theory

    NASA Astrophysics Data System (ADS)

    Chen, Feng; Fan, Hong-Yi

    2016-08-01

    By virtue of the operator Hermite polynomial method [Fan H Y and Zhan D H 2014 Chin. Phys. B 23 060301] we find a new special function which is useful in quantum optics theory, whose expansion involves both power-series and Hermite polynomials, i.e., By virtue of the operator Hermite polynomial method and the technique of integration within ordered product of operators (IWOP) we derive its generating function. The circumstance in which this new special function appears and is applicable is considered. Project supported by the Natural Science Fund of Education Department of Anhui Province, China (Grant No. KJ2016A590), the Talent Foundation of Hefei University, China (Grant No. 15RC11), and the National Natural Science Foundation of China (Grant Nos. 11247009 and 11574295).

  15. How to use a self-inflating bag and face mask.

    PubMed

    Parry, Andrew; Higginson, Ray

    2016-01-01

    Rationale and key points This article aims to help nurses to open and maintain an adult's airway while providing breaths using a self-inflating bag and face mask. Maintaining a patient's airway is vital in the management of acute, life-threatening illnesses and injuries. ▶ The nurse should address airway compromise immediately since it is a major factor in acute deterioration and may develop rapidly. ▶ The nurse should perform the head tilt and chin lift manoeuvre, or the jaw thrust manoeuvre for patients with suspected cervical spine injury, to maintain airway opening. Reflective activity Clinical skills articles can help update your practice and ensure it remains evidence based. Apply this article to your practice. Reflect on and write a short account of: 1. What you have gained from this article. 2. How this article will influence your practice. Subscribers can upload their reflective accounts at: rcni.com/portfolio . PMID:26938418

  16. The Effects of Taxi on Traffic Flow

    NASA Astrophysics Data System (ADS)

    Tang, Tie-Qiao; Li, Yan; Huang, Hai-Jun

    Taxi will come to one complete halt during the boarding/alighting period and might produce stop-and-go without passengers, so it often produces traffic interruption on the single-lane system. Tang et al. pointed out that the traffic flow model [Chin. Phys. 18, 975 (2009)] can be used to directly describe various micro phenomena resulted by traffic interruption on the single-lane system, if we properly define the traffic interruption probability, so in this paper we adopt this model to study the micro phenomena resulted by taxi on the single-lane system. The numerical results show that this model can describe the effects that taxi has on the trails of each vehicle's motion and the evolutions of the flow and the density on the single-lane system, but that these effects are relevant to the initial conditions of the whole system.

  17. [Williams-Beuren syndrome in Norway].

    PubMed

    Bjørnstad, P G

    1994-01-10

    The author describes the Williams-Beuren syndrome and the cases of 57 patients in an attempt to increase awareness of the syndrome, which probably is underdiagnosed. Its characteristic features are a combination of a special facial appearance and a mental condition: The face typically shows a broad, flattened upper lip, small chin, and hypoplasia of teeth, often strabism, flattened nasal bridge and fullness around the eyes. Mentally the patients appear to be happy, talkative, pleasant children, who are indiscriminatingly friendly and have serious difficulties in concentrating. Only 53% of the patients have an affected heart, of whom 93% have supravalvular aortic stenosis, peripheral pulmonic stenoses or combinations of the two. Nine patients have had heart operations. The facial features in children of different age groups and races are depicted. PMID:8296277

  18. The supracerebellar infratentorial approach to the dorsal midbrain.

    PubMed

    Kalani, M Yashar S; Martirosyan, Nikolay L; Nakaji, Peter; Spetzler, Robert F

    2016-01-01

    The supracerebellar infratentorial approach provides access to the dorsal midbrain, pineal region, and tentorial incisura. This approach can be used with the patient in a sitting, prone, park-bench, or supine position. For a patient with a supple neck and favorable anatomy, we prefer the supine position. The ipsilateral shoulder is elevated, the head turned to the contralateral side, the chin is tucked, and the neck extended toward the floor to open the craniocervical angle for added working room. Care must be taken to place the craniotomy laterally to make use of the ascending angle of the tentorium for ease of access to deep-seated lesions. The video can be found here: https://youtu.be/BZh6ljmE23k . PMID:26722694

  19. MEAN FIELD AND MONTE CARLO MODELING OF MULTIBLOCK COPOLYMERS

    SciTech Connect

    K. RASMUSSEN; ET AL

    2001-01-01

    The authors discuss and apply extensions needed to treat multiblock copolymers within the mean field theoretical framework for microphase separation in diblock copolymer metals, originally due to Leibler. The mean field calculations are complemented by lattice Monte Carlo realizations using the bond fluctuation model. They find that the microphase separation transition occurs at larger {sub {chi}}N as the number of blocks in increased beyond two (i.e., beyond diblock), and that the characteristic length scale of the emerging morphology decreases as the number of blocks increases. The latter prediction is in qualitative agreement with published experimental results due to Sontak and co-workers for model multiblock poly(styrene-isoprene) systems and recent results due to Hjelm and co-workers for a segmented poly(ester-urethane) relevant to Los Alamos interests. Additionally, the mean field predictions and bond fluctuation realizations yield consistent results.

  20. [Fiddler's neck].

    PubMed

    Knierim, C; Goertz, W; Reifenberger, J; Homey, B; Meller, S

    2013-10-01

    The fiddler's neck is an uncommon variant of acne mechanica in violinists and violists. It is a single firm red-brown dermal nodule usually on the left side of neck. This special form of acne mechanica represents a therapeutic challenge since the triggering mechanical factors persist, unless they can be corrected by changes in positioning or modifications of the chin pad. A 72-year-old woman who had played the violin since childhood presented with a red-brown nodule on her neck for 18 months. Cushioning provided no relief. Excision of the affected area with primary closure represented one therapeutic option. Further supportive measures include improved posture to reduce the pressure between skin and instrument and interposing a neck cloth. PMID:23989244

  1. Information leakage in three-party simultaneous quantum secure direct communication with EPR pairs

    NASA Astrophysics Data System (ADS)

    Wang, Lian-Ying; Chen, Xiu-Bo; Xu, Gang; Yang, Yi-Xian

    2011-04-01

    In 2007, Wang et al. [M. Y. Wang and F. L. Yan, Chin. Phys. Lett. 24 (2007) 2486] proposed a three-party simultaneous quantum secure direct communication (3P-SQSDC) scheme with EPR pairs. Recently, Chong et al. [S. K. Chong and T. Hwang, Opt. Commun. OPTICS-15438 (2010(online))] proposed an enhancement on Wang et al.'s scheme. The communications in Chong et al.'s 3P-SQSDC can be paralleled and thus their scheme has higher efficiency. However, we find that both of the schemes have the information leakage, because the legitimate parties' secret messages have a strong correlation. This kind of security loophole leads to the consequence that any eavesdropper (Eve) can directly conjecture some information about the secrets without any active attack.

  2. Spectroscopic analysis of femtosecond laser plasma filament in air

    NASA Astrophysics Data System (ADS)

    Bernhardt, J.; Liu, W.; Théberge, F.; Xu, H. L.; Daigle, J. F.; Châteauneuf, M.; Dubois, J.; Chin, S. L.

    2008-03-01

    We report a spectroscopic analysis of a filament generated by a femtosecond laser pulse in air. In the filament spectra, the characteristic Stark broadened atomic oxygen triplet centered at 777.4 nm has been observed. The measured electron impact Stark broadening parameter of the triplet is larger than the theoretical value by Griem [H.R. Griem, Plasma Spectroscopy, McGraw Hill, New York, 1964] by a factor 6.7 . Using the experimental value 0.0166nm , the plasma densities derived from Stark broadening agree well with those most recently obtained from Théberge et al.'s measurement of the nitrogen fluorescence calibrated by longitudinal diffraction [F. Théberge, W. Liu, P.T. Simard, A. Becker, S. L. Chin, Phys. Rev. E 74 (2006) 036406]. However, the Stark broadening approach is much simpler and can be used to non-invasively measure the filament plasma density distribution in air under different propagation conditions.

  3. First direct determination of the 48Ca double-β decay Q value

    NASA Astrophysics Data System (ADS)

    Bustabad, S.; Bollen, G.; Brodeur, M.; Lincoln, D. L.; Novario, S. J.; Redshaw, M.; Ringle, R.; Schwarz, S.; Valverde, A. A.

    2013-08-01

    The low-energy beam and ion trap Penning trap mass spectrometer was used for an improved determination of the 48Ca double-β decay Q value: Qββ=4268.121(79)keV. The new value is 1.2 keV greater than the value in the 2012 atomic mass evaluation [Chin. Phys. CCPCHCQ1674-113710.1088/1674-1137/36/12/003 36, 1603 (2012)], a shift of three σ, and is a factor of 5 more precise. Accurate knowledge of this Q value is important for experimental searches to observe neutrinoless double-β decay (0νββ) in 48Ca and is essential for extracting the effective mass of the electron neutrino if the 48Ca half-life of 0νββ was experimentally determined.

  4. Examination of the possible enhancement of neutrinoless double-electron capture in 78Kr

    NASA Astrophysics Data System (ADS)

    Bustabad, S.; Bollen, G.; Brodeur, M.; Lincoln, D. L.; Novario, S. J.; Redshaw, M.; Ringle, R.; Schwarz, S.

    2013-09-01

    Penning-trap mass spectrometry was used at the Low-Energy Beam and Ion Trap (LEBIT) facility at the National Superconducting Cyclotron Laboratory (NSCL) to investigate 78Kr, a candidate for resonantly enhanced neutrinoless double-electron capture (0νECEC). The newly determined Q value of 2847.75 (27) keV is 1.4 keV greater than the value from the most recent atomic mass evaluation [Chin. Phys. C1674-113710.1088/1674-1137/36/12/003 36, 1603 (2012)], a change of two sigma, and the uncertainty has been reduced by a factor of three. The change in the Q value shifts allowed 0νECEC in 78Kr further from resonant enhancement. With the improved determination of the Q value, all known excited states can now be confidently excluded from possible 78Se candidates that could lead to resonantly enhanced 0νECEC.

  5. High Precision Determination of the β Decay QEC Value of 11C and Implications on the Tests of the Standard Model

    NASA Astrophysics Data System (ADS)

    Gulyuz, K.; Bollen, G.; Brodeur, M.; Bryce, R. A.; Cooper, K.; Eibach, M.; Izzo, C.; Kwan, E.; Manukyan, K.; Morrissey, D. J.; Naviliat-Cuncic, O.; Redshaw, M.; Ringle, R.; Sandler, R.; Schwarz, S.; Sumithrarachchi, C. S.; Valverde, A. A.; Villari, A. C. C.

    2016-01-01

    We report the determination of the QEC value of the mirror transition of 11C by measuring the atomic masses of 11C and 11B using Penning trap mass spectrometry. More than an order of magnitude improvement in precision is achieved as compared to the 2012 Atomic Mass Evaluation (Ame2012) [Chin. Phys. C 36, 1603 (2012)]. This leads to a factor of 3 improvement in the calculated F t value. Using the new value, QEC=1981.690 (61 ) keV , the uncertainty on F t is no longer dominated by the uncertainty on the QEC value. Based on this measurement, we provide an updated estimate of the Gamow-Teller to Fermi mixing ratio and standard model values of the correlation coefficients.

  6. Apollo Project

    NASA Technical Reports Server (NTRS)

    1966-01-01

    From Spaceflight Revolution: 'Top NASA officials listen to a LOPO briefing at Langley in December 1966. Sitting to the far right with his hand on his chin is Floyd Thompson. To the left sits Dr. George Mueller, NASA associate administrator for Manned Space Flight. On the wall is a diagram of the sites selected for the 'concentrated mission.' 'The most fundamental issue in the pre-mission planning for Lunar Orbiter was how the moon was to be photographed. Would the photography be 'concentrated' on a predetermined single target, or would it be 'distributed' over several selected targets across the moon's surface? On the answer to this basic question depended the successful integration of the entire mission plan for Lunar Orbiter.' The Lunar Orbiter Project made systematic photographic maps of the lunar landing sites. Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, (Washington: NASA, 1995), p. 337.

  7. Osteosarcoma of the mandible--second cancer in a case of Hodgkin's lymphoma post-chemotherapy.

    PubMed

    De, Sumitava; Ghosh, Suparna; Mondal, Dodul; Sur, Prabir K

    2010-01-01

    Osteosarcoma as a second cancer occurring in an adolescent male previously treated with only chemotherapy for Hodgkin's lymphoma is rare. A 14 year old male presented with gradual swelling of right jaw and numbness of lip and chin for last three months. He was treated with only chemotherapy for Hodgkin's lymphoma four years back. Incisional biopsy was taken from mandibular swelling, histopathology suggesting osteosarcoma. Right hemimandibulectomy and reconstruction with metallic implant were done along with excision of right parotid lymph node. Chemotherapy was started with cisplatin and doxorubicin regimen. Absence of radiation as a risk factor and very young age of the patient presenting with a second cancer made this case a rarity and hence the case is being reported. PMID:21119269

  8. DATING: A computer code for determining allowable temperatures for dry storage of spent fuel in inert and nitrogen gases

    SciTech Connect

    Simonen, E.P.; Gilbert, E.R.

    1988-12-01

    The DATING (Determining Allowable Temperatures in Inert and Nitrogen Gases) code can be used to calculate allowable initial temperatures for dry storage of light-water-reactor spent fuel. The calculations are based on the life fraction rule using both measured data and mechanistic equations as reported by Chin et al. (1986). The code is written in FORTRAN and utilizes an efficient numerical integration method for rapid calculations on IBM-compatible personal computers. This report documents the technical basis for the DATING calculations, describes the computational method and code statements, and includes a user's guide with examples. The software for the DATING code is available through the National Energy Software Center operated by Argonne National Laboratory, Argonne, Illinois 60439. 5 refs., 8 figs., 5 tabs.

  9. Central venous catheter malposition in the azygos vein and difficult endotracheal intubation in severe ankylosing spondylitis: a case report

    PubMed Central

    Moon, Eunjin; Jeong, Hyungmo; Chung, Junyoung; Yi, Jaewoo

    2015-01-01

    Ankylosing spondylitis (AS) can be challenging for anesthesiologists because central venous access can be difficult, and the airway can be blocked due to the fixed flexion deformity of the spine. In this case, we attempted central access via the right subclavian vein, but the catheter was repeatedly inserted into the azygos vein, which was confirmed by radiology. After several attempts, the catheter position was corrected at the superior vena cava-atrial junction. Although several useful devices have been developed to address difficult intubation, in this case, fiberoptic bronchoscopy was the only applicable safe alternative because of the patient’s extremely severe chin on chest deformity and temporomandibular joint disease. We report a successful awake fiberoptic bronchoscopic intubation in a patient with extremely severe AS and recommend that the catheter placement should be confirmed with radiology to ensure proper positioning for severe AS patients. PMID:26885138

  10. [Polysomnography].

    PubMed

    Sato, Masako; Sasanabe, Ryujiro; Yamaguchi, Takehiro; Shiomi, Toshiaki

    2015-06-01

    Polysomnography (PSG) is performed under monitoring each parameters include EEG derivations, EOG derivations, chin EMG, leg EMG derivations, airflow signals, respiratory effort signals, oxygen saturation, body position and EGG and checking digital video and audio. From these recordings, the sleep quality, sleep-disordered breathing, circulatory status and presence of parasomnia were evaluated. PSGs were based on the criteria "The AASM Manual for the Scoring of Sleep and Associated Events" published in 2007 detailed about technical specification and scoring rules for adult and pediatric. However, there are no specific criteria for the elderly. There already have been known about characteristics for the elderly such as lower amplitude of Δ wave in slow-wave sleep stage, PLMS and RWA in PSG. PMID:26065129

  11. Face representation in the human primary somatosensory cortex.

    PubMed

    Nguyen, Binh T; Tran, Tuan D; Hoshiyama, Minoru; Inui, Koji; Kakigi, Ryusuke

    2004-10-01

    To investigate the representation of facial skin areas in the primary somatosensory cortex (SI), we recorded magnetic fields evoked by air pressure-induced tactile stimulation applied to six points on the face, lower lip and thumb. The thumb area in the SI was located more medial and superior to the lip area, which was consistent with Penfield's homunculus. However, the representations of all skin-covered areas including forehead, cheek, nose and chin in the SI were located between the thumb and lower lip area. There was no significant difference in location among the six facial points. Our results imply that lips occupy a large area of the face representation in the SI, whereas only a small area located between the thumb and lip areas is devoted to skin-covered surfaces. This is the first study showing that the facial skin areas in the human SI are located between the thumb and lower lip areas and close together. PMID:15380330

  12. Fukien region, China (summary): terrain intelligence

    USGS Publications Warehouse

    U.S. Geological Survey Military Geology Branch

    1944-01-01

    Population of the Fukien region is estimated from census figures (1928-1935) for Fukien, Kiangsi, Chekiang, and Kwangtung Pro vlnces at 15 to 20 ipillion. At the coast are several important cities: Min-hou (390,363 inhabitants), Ssu-ming (219,974), Pfu-tlien, Chin-chiang, and Lung-chfi. Nmerous towns and villages are scattered throughout the region. - B. Climate is wann humid temperate in the north and hmid subtropical in the south. Typhoons occur in late summer, especially in the area from Min-hu north. Precipitation averages 40 to 80 inches per year; It is generally highest in the interior. Mean monthly tamperature range is 55O to 850 F at coast; greater range inland

  13. Circulating cytotoxic CD8+ CD28- T cells in ankylosing spondylitis

    PubMed Central

    Schirmer, Michael; Goldberger, Christian; Würzner, Reinhard; Duftner, Christina; Pfeiffer, Karl-P; Clausen, Johannes; Neumayr, Günther; Falkenbach, Albrecht

    2002-01-01

    Circulating CD8+ CD28- T cells were found to be expanded more in patients with ankylosing spondylitis than in an age-matched healthy population (41.2 ± 17.7% versus 18.6 ± 7.6%). The level of CD8+CD28- T cells was dependent on the disease status, but was independent of age. Most of the CD8+ CD28- T cells produced perforin after stimulation in vitro, in contrast to their CD8+CD28+ counterparts. From the clinical perspective, the percentage of the cytotoxic CD8+ CD28- T cells reflected a more severe course of disease, as it correlated with distinct movement restrictions, as well as the metrology score summarizing cervical rotation (in sitting position), chin-to-jugulum distance, thoracic Schober, chest expansion, and fingers-to-floor distance (P = 0.032). PMID:11879540

  14. [Impact of age-related cataract on regulation of circadian rhythm in elderly].

    PubMed

    Wang, M S; Liu, M Y; Dong, X R; Wang, W

    2016-04-11

    This review presented an introduction of the visual pathway related circadian rhythm regulation system: the intrinsically photosensitive retinal ganglion cells-suprachiasmatic nucleus-pineal gland-melatonin axis, and discussed the impact of light with different wave length and irradiation received by retina on circadian rhythm and sleep habit. A hypothesis was proposed consequently that the high morbidity of sleep disorder in elderly might be partially attributable to the long-term blue light blocking status induced by age-related cataract. A number of relative literatures were reviewed and a novel research direction was advanced on improving circadian rhythm and sleep condition in elderly based on the current knowledge. (Chin J Ophthalmol, 2016, 52: 309-314). PMID:27094070

  15. Morbid obesity in a child with monosomy 1p36 syndrome

    PubMed Central

    Zagalo, Ana; Dias, Patricia; Pereira, Carla; Sampaio, Maria de Lurdes

    2012-01-01

    The monosomy 1p36 syndrome is a cause of syndromic obesity. It is characterised by psychomotor delay, hypotonia and typical craniofacial dysmorphism. Other features commonly associated are behavioural anomalies including hyperphagia and self-injuring, seizures, congenital heart disease and hypothyroidism. The authors report the case of a 9-year and 5-month-boy referred to the paediatric endocrinology clinics for morbid obesity. Clinical findings were generalised obesity with a body mass index >95th centile, acanthosis nigricans of the neck, arms with self inflicted lesions, deep-set eyes, straight eyebrows, broad nasal bridge and pointed chin. He was unable to walk and had no expressive language. Cytogenetic analysis identified 1p36.33-pter deletion (~139 Mb terminal deletion in chromosome 1 short arm) and Y chromosome duplication. The blood analysis showed insulin resistance and dyslipidaemia. The authors emphasise the need to consider monosomy 1p36 as a cause of severe psychomotor delay and obesity. PMID:22605691

  16. Novel, resistant microalgal polyethers: An important sink of organic carbon in the marine environment?

    SciTech Connect

    Gelin, F.; Boogers, I.; Noordeloos, A.A.M.

    1996-04-01

    Five out of seven marine microalgal species investigated were found to biosynthesize nonhydrolysable, mainly aliphatic, biomacromolecules (algaenans). The molecular structure of the algaenan isolated from the microalga Nannochloropsis salina of the class Eustigmatophyceae was determined by solid state {sup 13}C NMR spectroscopy, Curie point pyrolysis-gas chromatography-mass spectrometry, and chemical degradations with HI and RuO{sub 4}. The structure is predominantly composed of C{sub 28}-C{sub 34} linear chins linked by ether bridges. The algaenan isolated from a second eustigmatophyte (Nannochloropsis sp.) was structurally similar. Algaenans isolated from two chlorophytes also possess a strongly aliphatic nature, as revealed by the dominance of alkenes/alkanes in their pyrolysates. Accordingly, we proposed that the aliphatic character of numerous Recent and ancient marine kerogens reflects selectively preserved algaenans and that these algaenans may act as a source of n-alkanes in marine crude oils.

  17. Mixed Form of Hirsutism in an Adolescent Female and Laser Therapy

    PubMed Central

    Gacaferri Lumezi, Besa; Goci, Aferdita; Lokaj, Violeta; Latifi, Hatixhe; Karahoda, Natyra; Minci, Ganimete; Telaku, Drita; Gercari, Antigona; Kocinaj, Allma

    2014-01-01

    Introduction: Hirsutism is a common disorder of excess growth of terminal hair in an androgen-dependent male distribution in women, including the chin, upper lip, breasts, back, and abdomen. It is very important to identify the etiology of hirsutism and adequate treat is prior to any cosmetic therapy. Case Presentation: The case was a 17-year-old female with severe hirsutism, oligomenorrhea, and obesity. She was evaluated to identify the etiology and diagnosed as a case of polycystic ovarian syndrome (PCOS), nonclassic congenital adrenal hyperplasia (NC-CAH), and hyperandrogenic insulin-resistant acanthosis nigricans (HAIR-AN) syndrome, which is a rare combination of hirsutism etiology. She was successfully treated according to the underlying pathology, and laser photoepilation was used as the preferred hair removal method. Discussion: Establishing the etiology, using the evidence–based strategies to improve hirsutism, and treating the underlying disorder, are essential for proper management of women with hirsutism. PMID:25068069

  18. A permutationally invariant full-dimensional ab initio potential energy surface for the abstraction and exchange channels of the H + CH{sub 4} system

    SciTech Connect

    Li, Jun E-mail: zhangdh@dicp.ac.cn; Chen, Jun; Zhao, Zhiqiang; Zhang, Dong H. E-mail: zhangdh@dicp.ac.cn; Xie, Daiqian; Guo, Hua

    2015-05-28

    We report a permutationally invariant global potential energy surface (PES) for the H + CH{sub 4} system based on ∼63 000 data points calculated at a high ab initio level (UCCSD(T)-F12a/AVTZ) using the recently proposed permutation invariant polynomial-neural network method. The small fitting error (5.1 meV) indicates a faithful representation of the ab initio points over a large configuration space. The rate coefficients calculated on the PES using tunneling corrected transition-state theory and quasi-classical trajectory are found to agree well with the available experimental and previous quantum dynamical results. The calculated total reaction probabilities (J{sub tot} = 0) including the abstraction and exchange channels using the new potential by a reduced dimensional quantum dynamic method are essentially the same as those on the Xu-Chen-Zhang PES [Chin. J. Chem. Phys. 27, 373 (2014)].

  19. Epiblepharon-induced head tilt masquerading as torticollis.

    PubMed

    Erickson, Benjamin P; Lee, Wendy W

    2015-01-01

    A 10-month-old girl presented for ocular evaluation carrying a provisional diagnosis of torticollis. Her family reported that for the past 5 months, she consistently tilted her head to the left while twisting her chin toward the right shoulder. Her adnexal examination was notable for epiblepharon, with greater ciliary-corneal contact in the OS. It was therefore hypothesized that this posture was adopted to minimize ocular irritation. Her symptoms resolved immediately following a Hotz-Celsus procedure. To the best of the authors' knowledge, this is the first report of asymmetric ciliary-corneal contact from epiblepharon, resulting in preference for a head position mimicking a musculoskeletal abnormality such as torticollis. PMID:25569166

  20. [Recent studies on corneal epithelial barrier function].

    PubMed

    Liu, F F; Li, W; Liu, Z G; Chen, W S

    2016-08-01

    Corneal epithelium, the outermost layer of eyeball, is the main route for foreign materials to enter the eye. Under physiological conditions, the corneal epithelial superficial cells form a functionally selective permeability barrier. Integral corneal epithelial barrier function not only ensures the enrolling of nutrients which is required for regular metabolism, but also prevents foreign bodies, or disease-causing microorganism invasion. Recently, a large number of clinical and experimental studies have shown that abnormal corneal epithelial barrier function is the pathological basis for many ocular diseases. In addition, some study found that corneal epithelial barrier constitutes a variety of proteins involved in cell proliferation, differentiation, apoptosis, and a series of physiological and pathological processes. This paper reviewed recent studies specifically on the corneal epithelial barrier, highlights of its structure, function and influence factors. (Chin J Ophthalmol, 2016, 52: 631-635). PMID:27562284

  1. Visualizing superconductivity in FeSe nanoflakes on SrTiO3 by scanning tunneling microscopy

    NASA Astrophysics Data System (ADS)

    Li, Zhi; Peng, Jun-Ping; Zhang, Hui-Min; Song, Can-Li; Ji, Shuai-Hua; Wang, Lili; He, Ke; Chen, Xi; Xue, Qi-Kun; Ma, Xu-Cun

    2015-02-01

    Scanning tunneling microscopy and spectroscopy have been employed to investigate the superconductivity in single unit-cell FeSe nanoflakes on SrTiO3 substrates. We find that the differential conductance d I /d V spectra are spatially nonuniform and fluctuate within the flakes as their area is reduced to below ˜150 nm2 . An enhancement in the superconductivity-related gap size as large as 25 % is observed. The superconductivity behavior disappears when the FeSe nanoflakes reduce to ˜40 nm2 . Compared to a previous report [Wang et al., Chin. Phys. Lett. 29, 037402 (2012), 10.1088/0256-307X/29/3/037402], the gap is asymmetric relative to the Fermi energy EF. All the features, particularly the fluctuating gap and quenched superconductivity, could be accounted for by quantum size effects. Our study helps to understand nanoscale superconductivity in low-dimensional systems.

  2. Singular Limits of Voigt Models in Fluid Dynamics

    NASA Astrophysics Data System (ADS)

    Coti Zelati, Michele; Gal, Ciprian G.

    2015-06-01

    We investigate the long-term behavior, as a certain regularization parameter vanishes, of the three-dimensional Navier-Stokes-Voigt model of a viscoelastic incompressible fluid. We prove the existence of global and exponential attractors of optimal regularity. We then derive explicit upper bounds for the dimension of these attractors in terms of the three-dimensional Grashof number and the regularization parameter. Finally, we also prove convergence of the (strong) global attractor of the 3D Navier-Stokes-Voigt model to the (weak) global attractor of the 3D Navier-Stokes equation. Our analysis improves and extends recent results obtained by Kalantarov and Titi (Chin Ann Math Ser B 30:697-714, 2009).

  3. [Ocular immune reconstitution inflammatory syndrome].

    PubMed

    Ma, N; Ye, J J

    2016-02-11

    Immune reconstitution inflammatory syndrome (IRIS) is a collection of inflammatory disorders associated with paradoxical worsening of preexisting infectious processes or emerging diseases or even dead after the initiation of highly active antiretroviral therapy (HAART) in human immunodeficiency virus (HIV) infected individuals in a period of recovery of immune function. Ocular immune reconstitution inflammatory syndrome is mainly caused by cytomegalovirus which performing a series of ocular inflammation accompanied with the increase of CD4+ T lymphocytes, such as cytomegalovirus retinitis, after HAART. With HAART widely used, the patients of IRIS gradually increased. But the clinical presentations of IRIS were various because of different pathogens. This review summarized the clinical manifestations, risk factors, diagnosis and treatment of ocular IRIS.(Chin J Ophthalmol, 2016, 51: 150-153). PMID:26906710

  4. Clinically silent seizures in a neonate with tuberous sclerosis.

    PubMed

    Ikeno, Mitsuru; Okumura, Akihisa; Abe, Shinpei; Igarashi, Ayuko; Hisata, Ken; Shoji, Hiromichi; Shimizu, Toshiaki

    2016-01-01

    Although seizures during infancy in patients with tuberous sclerosis complex are common, seizures in neonates are infrequent. Here, we report the clinical course and electroencephalography (EEG) findings of a neonate with tuberous sclerosis complex associated with clinically silent seizures. The patient was a girl in whom cardiac tumors were detected on fetal ultrasonography. Brain magnetic resonance imaging during the neonatal period showed subependymal and cortical tubers. Routine EEG indicated unexpected ictal changes with no noticeable clinical symptoms. Ictal EEG was associated with a subtle increase in heart rate and a brief increase in chin electromyogram. These changes were difficult to identify clinically. The patient later developed focal seizures and epileptic spasms and had severe psychomotor delay. The present case suggests the occurrence of clinically silent seizures before the appearance of epileptic spasms in infants with tuberous sclerosis, and that EEG is an option for neonates with a prenatal diagnosis. PMID:26712128

  5. High Precision Determination of the β Decay Q(EC) Value of (11)C and Implications on the Tests of the Standard Model.

    PubMed

    Gulyuz, K; Bollen, G; Brodeur, M; Bryce, R A; Cooper, K; Eibach, M; Izzo, C; Kwan, E; Manukyan, K; Morrissey, D J; Naviliat-Cuncic, O; Redshaw, M; Ringle, R; Sandler, R; Schwarz, S; Sumithrarachchi, C S; Valverde, A A; Villari, A C C

    2016-01-01

    We report the determination of the Q(EC) value of the mirror transition of (11)C by measuring the atomic masses of (11)C and (11)B using Penning trap mass spectrometry. More than an order of magnitude improvement in precision is achieved as compared to the 2012 Atomic Mass Evaluation (Ame2012) [Chin. Phys. C 36, 1603 (2012)]. This leads to a factor of 3 improvement in the calculated Ft value. Using the new value, Q(EC)=1981.690(61)  keV, the uncertainty on Ft is no longer dominated by the uncertainty on the Q(EC) value. Based on this measurement, we provide an updated estimate of the Gamow-Teller to Fermi mixing ratio and standard model values of the correlation coefficients. PMID:26799013

  6. Redetermination of 2-methyl-4-nitro-pyridine N-oxide.

    PubMed

    Peukert, Max; Seichter, Wilhelm; Weber, Edwin

    2014-04-01

    An improved crystal structure of the title compound, C6H6N2O3, is reported. The structure, previously solved [Li et al. (1987 ▶). Jiegou Huaxue (Chin. J. Struct. Chem.), 6, 20-24] in the ortho-rhom-bic space group Pca21 and refined to R = 0.067, has been solved in the ortho-rhom-bic space group Pbcm with data of enhanced quality, giving an improved structure (R = 0.0485). The mol-ecule adopts a planar conformation with all atoms lying on a mirror plane. The crystal structure is composed of mol-ecular sheets extending parallel to the ab plane and connected via C-H⋯O contacts involving ring H atoms and O atoms of the N-oxide and nitro groups, while van der Waals forces consolidate the stacking of the layers. PMID:24826136

  7. Hirsutism following the use of bimatoprost eyedrops for glaucoma

    PubMed Central

    Kaliaperumal, Subashini; Govindaraj, Indu; Kopparapu, Praveen Kumar; Ahuja, Shashi

    2014-01-01

    Prostaglandin F2 alpha (PGF2α) analogues including bimatoprost are often the first line drugs used in the treatment of glaucoma. We present a case of a 62-year-old female patient who was started on bimatoprost in both the eyes for primary open angle glaucoma. The intraocular pressures reached the target level but she developed hair growth over the chin and upper lip after six months of commencing of the treatment. The regional hypertrichosis did not reduce much after stopping the drug. Hirsutism is a potential side effect of prostaglandin analogues which has rarely been reported. Doctors and patients need to be aware of this noticeable and unwanted side effect. The effect seems to occur in patients already having few non-vellus hairs in these areas. PMID:25210403

  8. The costs of recruiting: reflections of bean counter.

    PubMed

    Cole, Catherine S; Doan, Cathy; Ballinger, Nola; Brown, Ginger

    2009-10-01

    Although information on the costs of participant recruitment for large-scale clinical trials has been published, the information may not be applicable to small feasibility studies. To determine the most effective recruitment strategy for a feasibility study that sought to adapt laboratory measurement of simple reaction times of individuals with Alzheimer's disease (AD) to the home, we adapted a metric developed by Chin Feman et al. We recruited individuals with mild to moderate dementia from (a) enrollees in a Memory Research Center, (b) AD support groups, (c) the senior clinic at our university, and (d) senior citizen housing units. We compared costs and enrollment rates associated with various recruitment strategies and found that recruitment through the Memory Research Center was most effective (enrollment rate = 66.7%, salary costs = $49.47 per participant). These findings have implications for investigators preparing budgets for small feasibility studies involving populations with dementia. PMID:20077980

  9. [Piezoelectric osteotomy: applications in periodontal and implant surgery].

    PubMed

    Peivandi, A; Bugnet, R; Debize, E; Gleizal, A; Dohan, D M

    2007-11-01

    Reverse piezoelectricity is currently used in Dentistry for ultrasonic scaling devices. Using this technology, increasingly more powerful ultrasonic surgical lancets were developed within a few years, and these new tools have provided many practical solutions in oral and maxillofacial surgery. This article reviews the basic principles of piezosurgery, and its numerous clinical applications: in oral surgery (atraumatic extractions, wisdom teeth exposure, periapical cyst debridement, pre-prosthetic surgery), more specifically in periodontal (root planning and bone remodeling, crown lengthening) and implant surgery (sinus lift, removal of fractured implants, bone ridge augmentation, bone graft harvesting (crestal, retromolar, chin or tori)). The recent increased power of these instruments allows emphasizing a much wider range of clinical applications, extending to all surgical fields. PMID:17919670

  10. Cutaneous silica granuloma with generalized involvement of lymph nodes.

    PubMed

    Hou, Maihua; Zhu, Wenyuan; Ye, Yuda

    2011-07-01

    We report a case of cutaneous silica granuloma with generalized involvement of distal lymph nodes; no similar case has been reported in the published work. The 45-year-old man was a stonemason who had been incidentally sprayed with rock dust from a saw 22 years ago. The subject presented with nodules and erythematous areas on his face and chin. In addition, there was swelling in the cervical and inguinal lymph nodes. An excised lymph node had normal architecture with numerous non-caseating epithelioid cell granuloma and silicotic nodules which contained scattered, multinucleated, giant cells. There were particles in the granuloma exhibiting birefringence under polarized light microscopy. Elemental X-ray spectra of these lesions showed the presence of silica in these granulomas. PMID:21545493

  11. Sodium Deoxycholate for Submental Contouring.

    PubMed

    Humphrey, S; Beleznay, K; Beleznay, J D A

    2016-09-01

    The chin and jaw line are integral parts of an individual's aesthetic profile, and the presence of submental fat detracts from this and can lead to displeasure with one's facial appearance. While liposuction and cosmetic surgery are regarded as the gold standard in treating submental fat, surgical intervention is not appealing to all patients and has potential surgical complications including longer recovery, and contour irregularities. Despite ample advances in aesthetic medicine to enhance the appearance of the face, very little is available in non-invasive options to reduce submental fat that has been supported by robust evidence. ATX-101, a proprietary formulation of deoxycholic acid that is synthetically derived, has been extensively explored in a vigorous clinical development program that has established the safety and efficacy of the injectable. It has recently received approval by regulatory authorities in Canada (Belkyra™) and the US (Kybella®) for the treatment of submental fat. PMID:27603325

  12. Intellectual disability, unusual facial morphology and hand anomalies in sibs.

    PubMed

    Sousa, Sérgio B; Venâncio, Margarida; Chanudet, Estelle; Palmer, Rodger; Ramos, Lina; Beales, Philip L; Moore, Gudrun E; Saraiva, Jorge M; Hennekam, Raoul C

    2013-10-01

    Here we report on a Portuguese family with three sisters who shared moderate intellectual disability, unusual facial morphology (short palpebral fissures; broad nasal tip; thin upper and lower vermillion; broad and pointed chin) and hand anomalies in two of them (short left third and fifth right metacarpals in one case; marked syndactyly between the third and fourth fingers in another). One of the sisters had microcephaly and short stature, and the other two were obese. Obesity and somewhat similar facial features were also present in the otherwise healthy mother. Despite the overlap with several known syndromes (Albright osteodystrophy; Filippi syndrome; Rubinstein-Taybi syndrome; microdeletion 2q37), we suggest this condition is previously unreported, and most likely displays an autosomal recessive pattern of inheritance. © 2013 Wiley Periodicals, Inc. PMID:23949889

  13. Vocalization removal for improved automatic segmentation of dual-axis swallowing accelerometry signals.

    PubMed

    Sejdić, Ervin; Falk, Tiago H; Steele, Catriona M; Chau, Tom

    2010-07-01

    Automatic segmentation of dual-axis swallowing accelerometry signals can be severely affected by strong vocalizations. In this paper, a method based on periodicity detection is proposed to detect and remove such vocalizations. Periodic signal components are detected using conventional speech processing techniques and information from both axes are combined to improve vocalization detection accuracy. Experiments with 408 healthy subjects performing dry, wet, and wet chin tuck swallows show that the proposed method attains an average 95.3% sensitivity and 96.3% specificity. When applied in conjunction with an automatic segmentation algorithm, it is observed that segmentation accuracy improves by approximately 55%. These results encourage further development of medical devices for the detection of swallowing difficulties. PMID:20483652

  14. A Simulation Study of Multi-Beam Altimetry for Lunar Reconnaissance Orbiter and Other Planetary Missions

    NASA Technical Reports Server (NTRS)

    Rowlands, D. D.; Lemoine, F. G.; Chinn, D. S.; Luthcke, S. B.

    2009-01-01

    The combined use of altimetry, Earth-based Doppler and Earth-based range measurements in the lunar reconnaissance orbiter (LRO) mission (Chin et al. in Space Sci Rev 129:391-419, 2007) has been examined in a simulation study. It is found that in the initial phases of the mission orbit and altimeter geolocation accuracies should be better than 10m in the radial component and 60m overall. It is demonstrated that LRO's precise 1-way laser range measurement from Earth-based stations (Smith et al. in Proceedings of the 15th International Laser Ranging Workshop, Canberra, Australia, October 15-20, 2006) will be useful for gravity recovery. The advantages of multiple laser beams are demonstrated for altimeter calibration, orbit determination and gravity recovery in general planetary settings as well as for LRO.

  15. [Pathogenesis, clinical picture, and current therapy of rosacea].

    PubMed

    Gonser, L I; Gonser, C E; Schaller, M

    2016-01-01

    Rosacea is a common chronic inflammatory disease, especially in patients with fair skin and positive family history. Typical locations are forehead, nose, cheeks and chin; the periorbital region is usually not involved. Clinical features can be very heterogeneous. Besides different subtypes (erythematotelangiectatic rosacea, papulopustular rosacea, phymatous rosacea), which often overlap, various special forms of rosacea exist. Up to 60% of patients with cutaneous rosacea suffer from ocular rosacea. In Germany, brimonidine, metronidazol, azelaic acid, and ivermectin are approved for topical therapy of rosacea; for systemic therapy, doxycycline at a subantimicrobial dose (40 mg/day) is the only approved substance. In case of resistance to this therapy, contraindications or side effects, various alternative therapies are available, however off-label. PMID:26669873

  16. Automatic landmark extraction from image data using modified growing neural gas network.

    PubMed

    Fatemizadeh, Emad; Lucas, Caro; Soltanian-Zadeh, Hamid

    2003-06-01

    A new method for automatic landmark extraction from MR brain images is presented. In this method, landmark extraction is accomplished by modifying growing neural gas (GNG), which is a neural-network-based cluster-seeking algorithm. Using modified GNG (MGNG) corresponding dominant points of contours extracted from two corresponding images are found. These contours are borders of segmented anatomical regions from brain images. The presented method is compared to: 1) the node splitting-merging Kohonen model and 2) the Teh-Chin algorithm (a well-known approach for dominant points extraction of ordered curves). It is shown that the proposed algorithm has lower distortion error, ability of extracting landmarks from two corresponding curves simultaneously, and also generates the best match according to five medical experts. PMID:12834162

  17. Prosthetic rehabilitation of hemimandibular hyperplasia: five-year follow-up.

    PubMed

    Gokce, Bulent; Ozpinar, Birgul; Ozgur, Levent; Comlekoglu, M Erhan; Aladag, Akin; Akar, Gulcan Coskun

    2010-01-01

    Hemimandibular hyperplasia is a rare asymmetrical mandibular malformation, characterized by enlargement of the condyle, the condylar neck, the ramus, and the body of the mandible. This condition results in laterognathia, dental articulation disorders, and functional defects. Therapy largely depends on the patient's age and the desired esthetic and functional results. This clinical report describes the prosthetic rehabilitation of a 50-year-old woman with hemimandibular hyperplasia. During the diagnostic phase, facial asymmetry was observed, as was the chin midline shifting to the unaffected side and three-dimensional enlargement of one side of the mandible, the condyle, the condylar neck, and the ramus. No biomechanical or functional problems were seen at a five-year follow-up visit, except for physiological wear to the artificial teeth. PMID:20236910

  18. Unilateral condylar hyperplasia: a treatment strategy.

    PubMed

    Ferreira, Sabrina; da Silva Fabris, André Luis; Ferreira, Gabriel Ramalho; Faverani, Leonardo Perez; Francisconi, Giovanna Barbosa; Souza, Francisley Avila; Garcia, Idelmo Rangel

    2014-05-01

    Condylar hyperplasia (CH) is a pathologic condition that causes overdevelopment of the condylar head and neck as well as the mandible. Slowly progressive unilateral enlargement of the head and the neck of the condyle causes crossbite malocclusion, facial asymmetry, and shifting of the midpoint of the chin to the unaffected side. The etiology and the pathogenesis of CH remain uncertain. The diagnosis is made by clinical and radiologic examinations and bone scintigraph. A difference in uptake of 10% or more between condyles is regarded as indicative of CH, and the affected condyles had a relative uptake of 55% or more. When the diagnosis of active CH is established, the treatment consists of removal of the growth center by a partial condylectomy. The authors present the case of a 46-year-old male patient with right active type II CH or hemimandibular hyperplasia who underwent a high condylectomy. PMID:24820728

  19. [Diagnosis and treatment of ocular hypertension].

    PubMed

    Sun, Y Y; Chen, W W; Wang, N L

    2016-07-01

    Ocular hypertension is popular among people, with a prevalence of 3% to 10% in those older than 40 years old. Without proper intervention, over 10% of the patients with ocular hypertension would develop glaucoma in the following 5 to 10 years. Glaucoma has become one of the leading causes of blindness all over the world, which makes it essential for us to pay enough attention to the prevention and treatment of ocular hypertension. However, it is not cost-effective to treat all the patients with ocular hypertension. Certain side effects may also be caused with long-term medical treatment. Therefore, it is of great importance for ophthalmologists to identify the right time and use appropriate therapeutic methods. To introduce the knowledge of ocular hypertension, the definition, epidemiology, diagnosis, risk factors and treatment of ocular hypertension are reviewed in this article. (Chin J Ophthalmol, 2016, 52: 542-546). PMID:27531115

  20. A new fish species of the subfamily Serraninae (Perciformes, Serranidae) from the Philippines.

    PubMed

    Williams, Jeffrey T; Carpenter, Kent E

    2015-01-01

    A new species of serranine fish is described from the Philippine Islands. A single specimen of a new species, Chelidoperca santosi, captured by fishermen working in Palawan waters was discovered in the public fish market in Iloilo City, Panay, Philippines. Two additional specimens of the new species, also from the Philippines, were subsequently discovered in the collections of the Museum Victoria, Australia. The new species is currently known only from the Philippines and is characterized by its distinctive coloration with a row of four small dark spots on the snout (two in front of each eye) and two dark spots on the chin (one on each side of the symphysis of the dentaries), a white anal fin with six large yellow spots separated by broad white interspaces and a narrow yellow distal border, caudal fin with narrow yellow bars and a yellowish distal margin and no dark spots, and a combination of meristic and morphological characters.  PMID:25661613

  1. Bifocal orbital and nasopharyngeal amyloidomas presenting as Graves disease.

    PubMed

    Wu, Albert Y; Chapman, William B; Witterick, Ian J; Deangelis, Dan D

    2011-01-01

    A 72-year-old man presented with a slowly progressive left hyperglobus, left infraduction deficit, bilateral lower eyelid retraction, and dysphagia. He had a notable chin-down head position, diplopia in primary position, and 3 mm of left proptosis. He had been diagnosed with Graves disease 3 years before presentation. CT scans showed enlargement of the left inferior and medial rectus muscles with associated stranding of the retrobulbar fat and a low-density heterogeneous mass in the left aspect of the neck protruding in the nasopharynx. Biopsies of the orbit and nasopharynx revealed focal areas of amyloid. This represents the first report of bifocal amyloidomas of the orbit and nasopharynx. PMID:21178798

  2. Multiple aphthoid syphilitic chancres of the oral cavity.

    PubMed

    Veraldi, S; Lunardon, L; Persico, M C; Francia, C; Bottini, S

    2008-07-01

    We describe the case of a 31-year-old man who was affected by three asymptomatic, aphthoid, syphilitic chancres of the oral cavity. These lesions were accompanied by right latero-cervical and chin lymphadenopathy. The infection was previously diagnosed as aphthous stomatitis. The search for Treponema pallidum by means of darkfield microscope examination was positive. The patient was successfully treated with oral erythromycin ethylsuccinate. To our knowledge, this is the first case of multiple aphthoid syphilitic chancres of the oral cavity reported in the literature. We suggest that all patients with a recent history of painless ulcers in the oral cavity, accompanied by regional lymphadenopathy in which the clinical diagnosis has not been confirmed, should undergo a darkfield microscope examination. PMID:18574125

  3. Ultrasonic measurement of facial tissue depth in a Northern Chinese Han population.

    PubMed

    Jia, Linpei; Qi, Baiyu; Yang, Jingyan; Zhang, Weiguang; Lu, Yingqiang; Zhang, Hong-Liang

    2016-02-01

    In forensic anthropology, facial soft tissue depth measurement is crucial for craniofacial reconstruction technology, which is based on the morphological features of human faces to rebuild appearances of decedents, helps forensic scientists to identify the nameless bone. We measured the facial tissue depth of 135 young subjects from northern China whereby revealing the relationship among tissue depth, sex and BMI as well as providing data for craniofacial reconstruction in forensic science. All the volunteers are healthy medical students including 64 males and 71 females. Ultrasound was used to measure 19 points across the face evenly distributed in 6 regions including the eye, nose, mouth, cheek, jaw and chin. Our results indicate that tissue thickness at 11 points of females and 11 points of males are related to BMI. A majority of points are thicker in females than those of males. Further comparisons with data of American and European population show an apparent diversity in both genders. PMID:26778588

  4. Nonsurgical Treatment of Hemifacial Microsomia: A Case Report

    PubMed Central

    Nouri, Mahtab; Farzan, Arash

    2015-01-01

    Introduction: Hemifacial microsomia (HFM) is a birth defect involving craniofacial structures derived from the first and second branchial arches. Although it is a relatively uncommon malformation, it is the second most common craniofacial birth defect after cleft lip and palate (CL/P). Case Presentation: This is a case report about the successful orthodontic treatment of a patient with mild hemifacial microsomia (HFM), using a non-surgical orthopedic and orthodontic treatment approach. The aim of this approach was to make the best noninvasive modality to treat HFM. A 7-year-old boy with a mild HFM presented with a convex profile and slight chin deviation. Orthopedic treatment performed using a hybrid functional and high pulls headgear. Treatment continued by fixed orthodontic straight wire appliance to achieve perfect occlusion. Conclusions: Excellent esthetic and functional results achieved; total treatment duration was about 72 months. PMID:26734473

  5. Bold Colors in a Cryptic Lineage: Do Eastern Indigo Snakes Exhibit Color Dimorphism?

    PubMed Central

    Deitloff, Jennifer; Johnson, Valerie M.; Guyer, Craig

    2013-01-01

    Many species exhibit variation in the color of their scales, feathers, or fur. Various forms of natural selection, such as mimicry, crypsis, and species recognition, as well as sexual selection, can influence the evolution of color. Eastern Indigo Snakes (Drymarchon couperi), a federally threatened species, have coloration on the sides of the head and the chin that can vary from black to red or cream. Despite significant conservations efforts for this species, little is known about its biology in the field. Past researchers have proposed that the color variation on the head and chin is associated with the sex of the individual. Alternatively, color might vary among individuals because it is controlled by genes that are under natural selection or neutral evolution. We tested these alternative hypotheses by examining whether coloration of the sublabial, submaxillary, and ventral scales of this species differed by sex or among clutches. We used color spectrometry to characterize important aspects of color in two ways: by examining overall color differences across the entire color spectrum and by comparing differences within the ultraviolet, yellow, and red colorbands. We found that Eastern Indigo Snakes do not exhibit sexual dichromatism, but their coloration does vary among clutches; therefore, the pattern of sexual selection leading to sexual dichromatism observed in many squamates does not appear to play a role in the evolution and maintenance of color variation in Eastern Indigo Snakes. We suggest that future studies should focus on determining whether color variation in these snakes is determined by maternal effects or genetic components and if color is influenced by natural selection or neutral evolutionary processes. Studying species that exhibit bright colors within lineages that are not known for such coloration will contribute greatly to our understanding of the evolutionary and ecological factors that drive these differences. PMID:23691245

  6. Changes in selected biochemical, muscular strength, power, and endurance measures during deliberate overreaching and tapering in rugby league players.

    PubMed

    Coutts, A; Reaburn, P; Piva, T J; Murphy, A

    2007-02-01

    The purpose of this study was to examine the influence of overreaching on muscle strength, power, endurance and selected biochemical responses in rugby league players. Seven semi-professional rugby league players (.VO(2max) = 56.1 +/- 1.7 mL . kg (-1) . min (-1); age = 25.7 +/- 2.6 yr; BMI = 27.6 +/- 2.0) completed 6 weeks of progressive overload training with limited recovery periods. A short 7-day stepwise reduction taper immediately followed the overload period. Measures of muscular strength, power and endurance and selected biochemical parameters were taken before and after overload training and taper. Multistage fitness test running performance was significantly reduced (12.3 %) following the overload period. Although most other performance measures tended to decrease following the overload period, only peak hamstring torque at 1.05 rad . s (-1) was significantly reduced (p < 0.05). Following the taper, a significant increase in peak hamstring torque and isokinetic work at both slow (1.05 rad . s (-1)) and fast (5.25 rad . s (-1)) movement velocities were observed. Minimum clinically important performance decreases were measured in a multistage fitness test, vertical jump, 3-RM squat and 3-RM bench press and chin-up (max) following the overload period. Following the taper, minimum clinically important increases in the multistage fitness test, vertical jump, 3-RM squat and 3-RM bench press and chin-up (max) and 10-m sprint performance were observed. Compared to resting measures, the plasma testosterone to cortisol ratio, plasma glutamate, plasma glutamine to glutamate ratio and plasma creatine kinase activity demonstrated significant changes at the end of the overload training period (p < 0.05). These results suggest that muscular strength, power and endurance were reduced following the overload training, indicating a state of overreaching. The most likely explanation for the decreased performance is increased muscle damage via a decrease in the anabolic

  7. Antimalarial potential of China 30 and Chelidonium 30 in combination therapy against lethal rodent malaria parasite: Plasmodium berghei.

    PubMed

    Rajan, Aswathy; Bagai, Upma

    2013-01-01

    Homeopathy is a therapeutic method based on the application of similia principle, utilizing ultra-low doses of medicinal substances made from natural products. The present study has been designed to evaluate the efficacy of Cinchona officinalis (Chin.) 30C and Chelidonium majus (Chel.) 30C in combination therapy against lethal murine malaria. Five groups having twelve BALB/c mice each were administered orally with 0.2 ml/mouse/day of different drugs, and their antimalarial potential was evaluated by Peter's 4-day test. The combination of Chin. 30 and Chel. 30 exhibited complete parasite clearance by the 28th day post-inoculation which was similar to the positive control [artesunate (4 mg/kg)+sulphadoxine-primethamine (1.2 mg/kg)] group. Both the groups exhibited enhanced mean survival time (MST) 28±0 days,whereas, the mice of infected control group survived up to 7.6±0.4 days only. The preventive and curative activities of the combination in comparison to the positive controls [pyrimethamine (1.2 mg/Kg) and chloroquine (20 mg/Kg), respectively] were also evaluated. The combination had a significant preventive activity (p<0.0005), with 89.2% chemosuppression which was higher than the standard drug, pyrimethamine (83.8%). It also showed a moderate curative activity with complete clearance of parasite in 50% of surviving mice, and enhancing the MST of mice up to 26.8±2.8 days. These findings point to the significant antiplasmodial efficacy of the combination of these homeopathic drugs against Plasmodium berghei. PMID:23652641

  8. Standardization of surgical techniques used in facial bone contouring.

    PubMed

    Lee, Tae Sung

    2015-12-01

    Since the introduction of facial bone contouring surgery for cosmetic purposes, various surgical methods have been used to improve the aesthetics of facial contours. In general, by standardizing the surgical techniques, it is possible to decrease complication rates and achieve more predictable surgical outcomes, thereby increasing patient satisfaction. The technical strategies used by the author to standardize facial bone contouring procedures are introduced here. The author uses various pre-manufactured surgical tools and hardware for facial bone contouring. During a reduction malarplasty or genioplasty procedure, double-bladed reciprocating saws and pre-bent titanium plates customized for the zygomatic body, arch and chin are used. Various guarded oscillating saws are used for mandibular angloplasty. The use of double-bladed saws and pre-bent plates to perform reduction malarplasty reduces the chances of post-operative asymmetry or under- or overcorrection of the zygoma contours due to technical faults. Inferior alveolar nerve injury and post-operative jawline asymmetry or irregularity can be reduced by using a guarded saw during mandibular angloplasty. For genioplasty, final placement of the chin in accordance with preoperative quantitative analysis can be easily performed with pre-bent plates, and a double-bladed saw allows more procedural accuracy during osteotomies. Efforts by the surgeon to avoid unintentional faults are key to achieving satisfactory results and reducing the incidence of complications. The surgical techniques described in this study in conjunction with various in-house surgical tools and modified hardware can be used to standardize techniques to achieve aesthetically gratifying outcomes. PMID:26346781

  9. Content Validity Index and Intra- and Inter-Rater Reliability of a New Muscle Strength/Endurance Test Battery for Swedish Soldiers.

    PubMed

    Larsson, Helena; Tegern, Matthias; Monnier, Andreas; Skoglund, Jörgen; Helander, Charlotte; Persson, Emelie; Malm, Christer; Broman, Lisbet; Aasa, Ulrika

    2015-01-01

    The objective of this study was to examine the content validity of commonly used muscle performance tests in military personnel and to investigate the reliability of a proposed test battery. For the content validity investigation, thirty selected tests were those described in the literature and/or commonly used in the Nordic and North Atlantic Treaty Organization (NATO) countries. Nine selected experts rated, on a four-point Likert scale, the relevance of these tests in relation to five different work tasks: lifting, carrying equipment on the body or in the hands, climbing, and digging. Thereafter, a content validity index (CVI) was calculated for each work task. The result showed excellent CVI (≥0.78) for sixteen tests, which comprised of one or more of the military work tasks. Three of the tests; the functional lower-limb loading test (the Ranger test), dead-lift with kettlebells, and back extension, showed excellent content validity for four of the work tasks. For the development of a new muscle strength/endurance test battery, these three tests were further supplemented with two other tests, namely, the chins and side-bridge test. The inter-rater reliability was high (intraclass correlation coefficient, ICC2,1 0.99) for all five tests. The intra-rater reliability was good to high (ICC3,1 0.82-0.96) with an acceptable standard error of mean (SEM), except for the side-bridge test (SEM%>15). Thus, the final suggested test battery for a valid and reliable evaluation of soldiers' muscle performance comprised the following four tests; the Ranger test, dead-lift with kettlebells, chins, and back extension test. The criterion-related validity of the test battery should be further evaluated for soldiers exposed to varying physical workload. PMID:26177030

  10. Content Validity Index and Intra- and Inter-Rater Reliability of a New Muscle Strength/Endurance Test Battery for Swedish Soldiers

    PubMed Central

    Larsson, Helena; Tegern, Matthias; Monnier, Andreas; Skoglund, Jörgen; Helander, Charlotte; Persson, Emelie; Malm, Christer; Broman, Lisbet; Aasa, Ulrika

    2015-01-01

    The objective of this study was to examine the content validity of commonly used muscle performance tests in military personnel and to investigate the reliability of a proposed test battery. For the content validity investigation, thirty selected tests were those described in the literature and/or commonly used in the Nordic and North Atlantic Treaty Organization (NATO) countries. Nine selected experts rated, on a four-point Likert scale, the relevance of these tests in relation to five different work tasks: lifting, carrying equipment on the body or in the hands, climbing, and digging. Thereafter, a content validity index (CVI) was calculated for each work task. The result showed excellent CVI (≥0.78) for sixteen tests, which comprised of one or more of the military work tasks. Three of the tests; the functional lower-limb loading test (the Ranger test), dead-lift with kettlebells, and back extension, showed excellent content validity for four of the work tasks. For the development of a new muscle strength/endurance test battery, these three tests were further supplemented with two other tests, namely, the chins and side-bridge test. The inter-rater reliability was high (intraclass correlation coefficient, ICC2,1 0.99) for all five tests. The intra-rater reliability was good to high (ICC3,1 0.82–0.96) with an acceptable standard error of mean (SEM), except for the side-bridge test (SEM%>15). Thus, the final suggested test battery for a valid and reliable evaluation of soldiers’ muscle performance comprised the following four tests; the Ranger test, dead-lift with kettlebells, chins, and back extension test. The criterion-related validity of the test battery should be further evaluated for soldiers exposed to varying physical workload. PMID:26177030

  11. Investigation of the Acoustics of Plucked String Tones Based on the Analysis of Their Time-Varying Spectra.

    NASA Astrophysics Data System (ADS)

    Chen, Kwok-Ping John

    This research investigates two aspects of the time-varying vibration patterns of plucked string tones of classical guitar, Chinese pipa and Chinese ch'in. First, the assumption that horizontal and vertical frequencies and decay rates may be different is used as a basis for classifying the partial amplitude envelopes into four types. It is found that the partial envelopes of the tones produced by the three instruments, using the finger tip excitation method, on a single undamped string, can be described in terms of these four types. The results show that ch'in tones contain Type III, and IV, guitar tones contain Type I, II and III, and pipa tones contain all four types with a higher percentage of Type III and IV. Second, the theories of "missing modes" (Young, 1800), (Benade, 1976) and delayed generation of these modes (Fletcher, 1984), (Hall, 1987) are re-examined experimentally. The edge of a conventional guitar pick is used to excite a single undamped string on a classical guitar at nodal position N which is L/N from the bridge. As a result, it is a consistent feature that any mode whose index n is a multiple of N is attenuated during the attack phase but subsequently rises with a more gradual attack to reach a significant peak amplitude, except for the first multiple of locations L/3 to L/7. This amplitude envelope pattern, Type V, which is only applicable when the pick-edge excitation method is used, is distinct from the other four types mentioned above.

  12. Markerless three-dimensional tracking of masticatory movement.

    PubMed

    Tanaka, Yuto; Yamada, Takafumi; Maeda, Yoshinobu; Ikebe, Kazunori

    2016-02-01

    Conventional methods for measuring mandibular movement are expensive and require headgear and a marker attached to the mandibular incisors. These make assessment of normal chewing difficult. The aim of the present study was to test the validity of a markerless three-dimensional system for tracking masticatory movement by comparing it with a conventional method using an incisal marker. The study investigated 100 chewing cycles in 10 participants. The jaw tracking system consisted of a camera capable of recording depth and red, green, and blue data simultaneously, a laptop computer, and data analysis software. Depth data for each participant's face, tracked in real time, produced a computed 3D mask. The most prominent point of the soft tissue under the lip was defined as the chin point. A dental clasp cemented to the labial surface of the mandibular incisors was defined as the incisal point. The movement of these two measuring points was simultaneously recorded during mastication of chewing gum for 20s. To conduct the same analysis on each cycle from the two measuring points, all cycles were normalized by dividing by the corresponding vertical displacement because of their size variation. The findings showed excellent intramethod correlation for normalized horizontal displacement at every level (>0.9; except for 2 out of 19 levels; 0.896 and 0.898), and a lack of proportional bias. These findings suggest a correlation between the chewing cycles from two measuring points, the incisor and the chin, further suggesting the feasibility of a markerless system for tracking masticatory movement. PMID:26827172

  13. Origin of the facial long latency responses elicited by magnetic stimulation.

    PubMed

    Rimpiläinen, I

    1994-04-01

    With magnetic stimulation (MS) it is possible to elicit bilateral long latency facial motor responses (LLRs). Due to a relatively wide magnetic field, the site of neural activation may take place in many different structures. The purpose of this study was to determine the site of origin of facial LLRs. The motor long latency responses were recorded bilaterally on the naso-labial folds (NLFs) with reference electrodes on the nose, and on some subjects also with reference electrodes on the chin. The stimulating coil was placed in the right parietal area. LLRs obtained with MS were compared to LLRs elicited electrically at the right stylomastoid foramen, supraorbital foramen, as well as cutaneous sensory area V1 of the trigeminal nerve. In addition, right sided high intensity electrical stimuli, paired magnetic stimulation and electrical stimulation with interstimulus intervals ranging from 0 to 80 msec were also applied for comparison. LLRs recorded with reference to the nose were always elicitable with MS as well as with the other stimulation procedures. The responses elicited with MS did not differ from those elicited electrically at various extracranial stimulation sites. With paired stimuli the second LLRs were inhibited by the preceding stimulation, whether given magnetically or electrically. In subjects with elicitable LLRs with chin references, the responses were always bilateral. Based on the similar characteristics with extracranial electrical stimuli, bilateral distribution of the responses, and inhibition of the second response with paired stimuli, it is concluded that the neural origin of LLRs to MS is in the extracranial trigeminal or facial nerve branches. PMID:7512918

  14. Effect of head position on cephalometric evaluation of the soft-tissue facial profile

    PubMed Central

    Hoogeveen, RC; Sanderink, GCH; Berkhout, WER

    2013-01-01

    Objectives: During a cone beam CT scan, the patient is in an upright or supine position. This position depends on the brand and type of the scanner. The aims of this study are: (1) to investigate if the head position has an effect on cephalometric evaluation of the soft-tissue facial profile, comparing the recordings in natural head position (NHP) and supine head position (SHP) and (2) to investigate if age, gender and body mass index (BMI) are contributing factors to the effect of the head position. Methods: 90 subjects were photographed in profile both in NHP and in SHP. 12 soft-tissue angular and linear cephalometric values were calculated. Two-way random intraclass correlation coefficients were calculated to determine observer reliability. Paired t-tests and linear regression analyses were performed to investigate the differences between the head positions and the influence of age, gender and BMI. Results: Intraobserver reliability was generally high. Paired t-tests showed significant changes as a result of head positioning (p < 0.0001) in 9 of the 12 measurements. These differences were small and clinically not relevant, except for the “lower face—throat angle”. Regression analysis revealed no relevant influence of age, gender and BMI. Conclusions: Cephalometric soft-tissue evaluation from a recording in SHP is generally reliable, except for the throat–chin area where a clinically relevant difference was found. The contour of the submandibular tissues in SHP causes the chin to appear more prominently. This can cause incorrect orthodontic diagnosis and treatment planning. PMID:23412462

  15. Assessing Patient-Reported Outcomes Following Orthognathic Surgery and Osseous Genioplasty.

    PubMed

    Schwitzer, Jonathan A; Albino, Frank P; Mathis, Ryan K; Scott, Amie M; Gamble, Laurie; Baker, Stephen B

    2015-11-01

    Primary outcomes for orthognathic surgery and genioplasty patients include satisfaction with appearance, improved motor function, and enhanced quality of life. The goal of this study was to assess outcomes among patients undergoing these procedures, and to highlight the potential use of FACE-Q instrument for use in patients with dentofacial deformities. A total of 56 patients presenting for orthognathic surgery and/or osseous genioplasty completed the FACE-Q during preoperative and/or at postoperative visits. FACE-Q scores increased following surgery in satisfaction with facial appearance overall (+24.5, P < 0.01), satisfaction with lower face and jawline (+40.7, P < 0.01), and in all satisfaction with chin items (profile, prominence, shape, and overall). Patients also demonstrated increased social confidence (+8.9, P = 0.29). There was no improvement in psychologic well-being (-0.8, P = 0.92). All 3 surgical groups of patients experienced gains in satisfaction with appearance following surgery. Patients who underwent orthognathic surgery either alone or in combination with genioplasty demonstrated statistically significant improvements in satisfaction with facial appearance overall (P < 0.01 for both groups), whereas patients who underwent genioplasty alone did not (P = 0.13). In addition, patients who underwent orthognathic surgery combined with genioplasty demonstrated greater improvement in satisfaction with chin than patients who underwent genioplasty alone. In conclusion, patients who underwent orthognathic surgery and/or genioplasty demonstrated improvement in appearance and social confidence. The use of this model supports the successful outcomes possible for patients undergoing these procedures. PMID:26501967

  16. Perceived Intelligence Is Associated with Measured Intelligence in Men but Not Women

    PubMed Central

    Kleisner, Karel; Chvátalová, Veronika; Flegr, Jaroslav

    2014-01-01

    Background The ability to accurately assess the intelligence of other persons finds its place in everyday social interaction and should have important evolutionary consequences. Methodology/Principal Findings We used static facial photographs of 40 men and 40 women to test the relationship between measured IQ, perceived intelligence, and facial shape. Both men and women were able to accurately evaluate the intelligence of men by viewing facial photographs. In addition to general intelligence, figural and fluid intelligence showed a significant relationship with perceived intelligence, but again, only in men. No relationship between perceived intelligence and IQ was found for women. We used geometric morphometrics to determine which facial traits are associated with the perception of intelligence, as well as with intelligence as measured by IQ testing. Faces that are perceived as highly intelligent are rather prolonged with a broader distance between the eyes, a larger nose, a slight upturn to the corners of the mouth, and a sharper, pointing, less rounded chin. By contrast, the perception of lower intelligence is associated with broader, more rounded faces with eyes closer to each other, a shorter nose, declining corners of the mouth, and a rounded and massive chin. By contrast, we found no correlation between morphological traits and real intelligence measured with IQ test, either in men or women. Conclusions These results suggest that a perceiver can accurately gauge the real intelligence of men, but not women, by viewing their faces in photographs; however, this estimation is possibly not based on facial shape. Our study revealed no relation between intelligence and either attractiveness or face shape. PMID:24651120

  17. Range of Motion Improvement in Ankylosing Spondylitis Patient with Persian Traditional Medicine; Case Report

    PubMed Central

    Gorji, Narjes; Moeini, Reihaneh

    2016-01-01

    Background: Ankylosing spondylitis (AS) is a chronic inflammatory disease of the skeletal system without definitive treatment. Nowadays, the aim of therapeutic interventions is preventing disease progression, but eventually many patients have different degrees of decreased range of motion, especially in the spine accompanied by pain and fatigue. Methods: A 44-year-old man with AS from 22 years ago was treated with NSAIDs and sulfasalazine. He visited for developed pain and stiffness in spine from 7 years ago. He did not confer with the rheumatologist from 2012 due to the lack of treatment satisfaction and maintained his treatment with 75 mg indomethacin daily. The patient was assessed in the Iranian traditional medicine clinic and other problems were chronic fatigue, interrupted sleep, and extreme dry skin. Diagnosis was general dryness and treatment started with oral and tropical moisture and nutritional advice. Results: In the third month of treatment, joint pain, morning stiffness and sleep disturbance improved. After 8 months, in addition to complete improvement of skin dryness, sleep disturbance and joint pain, range of motion in cervical and lumbar spine were increased. In cervical rotation, distance from the chin to acromion decreased from 24 to 15 cm in right rotation and 20 to 13 cm in left rotation. Additionally, in cervical flexion distance from the chin to sternal notch decreased from 16 to 8 cm after treatment. In the lumbar spine, an increased Schober’s index was seen. Conclusion: The use of Persian traditional medicine’s viewpoints and treatment strategies can be effective in improving Ankylosing spondylitis prognosis and proposed for future clinical research.

  18. What's behind the mask? A look at blood flow changes with prolonged facial pressure and expression using laser Doppler imaging.

    PubMed

    Van-Buendia, Lan B; Allely, Rebekah R; Lassiter, Ronald; Weinand, Christian; Jordan, Marion H; Jeng, James C

    2010-01-01

    Clinically, the initial blanching in burn scar seen on transparent plastic face mask application seems to diminish with time and movement requiring mask alteration. To date, studies quantifying perfusion with prolonged mask use do not exist. This study used laser Doppler imaging (LDI) to assess perfusion through the transparent face mask and movement in subjects with and without burn over time. Five subjects fitted with transparent face masks were scanned with the LDI on four occasions. The four subjects without burn were scanned in the following manner: 1) no mask, 2) mask on while at rest, 3) mask on with alternating intervals of sustained facial expression and rest, and 4) after mask removal. Images were acquired every 3 minutes throughout the 85-minute study period. The subject with burn underwent a shortened scanning protocol to increase comfort. Each face was divided into five regions of interest for analysis. Compared with baseline, mask application decreased perfusion significantly in all subjects (P < .0001). Perfusion did not change during the rest period. There were no significant differences with changing facial expression in any of the regions of interest. On mask removal, all regions of the face demonstrated a hyperemic effect with the chin (P = .05) and each cheek (P < .0001) reaching statistical significance. Perfusion levels did not return to baseline in the chin and cheeks after 30 minutes of mask removal. Perfusions remain constantly low while wearing the face mask, despite changing facial expressions. Changing facial expressions with the mask on did not alter perfusion. Hyperemic response occurs on removal of the mask. This study exposed methodology and statistical issues worth considering when conducting future research with the face, pressure therapy, and with LDI technology. PMID:20453735

  19. Establishing the customized occlusal plane in systemized surgical treatment objectives of class III.

    PubMed

    Baek, Seung-Hak; Ahn, Hyo-Won; Yang, Sang-Duck; Choi, Jin-Young

    2011-09-01

    The purpose of this study was to present a new approach for establishing the customized occlusal plane for an individual patient in systemized surgical treatment objective of class III cases. After the correction of incisor inclination to occlusal planes (U1-MxOP and L1-MnOP), the intermaxillary relationship can be established with normal overbite/overjet and maximum intercuspation. The anterior limits of the maxilla and the mandible can be positioned according to A to N perpendicular, Frankfort horizontal (FH) to AB plane angle, and upper incisor display. The vertical level of the upper first molar can then be determined in relation to the Y plane (an imaginary arch drawn using the distance between the lower incisor edge point and the rotation center point of the condylar head as a radius) and a triangle projected by the upper and lower limits of the FH to the occlusal plane (FH-OP triangle). Soft-tissue facial balance can be checked with the lip/chin projection in relation to the true vertical line at subnasale and the lower third facial height ratio. Appropriate superior impaction of the posterior part of the maxilla in relation to the Y plane and FH-OP triangle in case 1 produced significant improvement of the facial profile and occlusion. However, case 2 showed that the amount of superior impaction of the posterior part of the maxilla was not enough to produce a significant setback of the mandible and retraction of the lip and chin. The systemized surgical treatment objective flowchart that could set the customized occlusal plane for an individual patient might provide a useful guideline for obtaining optimal aesthetics and functional occlusion in class III cases. PMID:21959417

  20. 3D model of radionuclide dispersion in coastal areas with multifraction cohesive and non-cohesive sediments

    NASA Astrophysics Data System (ADS)

    Brovchenko, Igor; Maderich, Vladimir; Jung, Kyung Tae

    2015-04-01

    We developed new radionuclide dispersion model that may be used in coastal areas, rivers and estuaries with non-uniform distribution of suspended and bed sediments both cohesive and non-cohesive types. Model describes radionuclides concentration in dissolved phase in water column, particulated phase on suspended sediments on each sediment class types, bed sediments and pore water. The transfer of activity between the water column and the pore water in the upper layer of the bottom sediment is governed by diffusion processes. The phase exchange between dissolved and particulate radionuclides is written in terms of desorption rate a12 (s-1) and distribution coefficient Kd,iw and Kd,ib (m3/kg) for water column and for bottom deposit, respectively. Following (Periáñez et al., 1996) the dependence of distribution coefficients is inversely proportional to the sediment particle size. For simulation of 3D circulation, turbulent diffusion and wave fields a hydrostatic model SELFE (Roland et. al. 2010) that solves Reynolds-stress averaged Navier-Stokes (RANS) equations and Wave Action transport equation on the unstructured grids was used. Simulation of suspended sediment concentration and bed sediments composition is based on (L. Pinto et. al., 2012) approach that originally was developed for non-cohesive sediments. In present study we modified this approach to include possibility of simulating mixture of cohesive and non-cohesive sediments by implementing parameterizations for erosion and deposition fluxes for cohesive sediments and by implementing flocculation model for determining settling velocity of cohesive flocs. Model of sediment transport was calibrated on measurements in the Yellow Sea which is shallow tidal basin with strongly non-uniform distribution of suspended and bed sediments. Model of radionuclide dispersion was verified on measurements of 137Cs concentration in surface water and bed sediments after Fukushima Daiichi nuclear accident. References Peri