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Sample records for roland chin ting-chuen

  1. Chin augmentation - slideshow

    MedlinePlus

    ... page: //medlineplus.gov/ency/presentations/100009.htm Chin augmentation - series—Normal anatomy To use the sharing features ... Bethesda, MD 20894 U.S. Department of Health and Human Services National Institutes of Health Page last updated: ...

  2. Redox pioneer: professor Roland Stocker.

    PubMed

    Hunt, Nicholas H

    2011-12-15

    Dr. Roland Stocker (Ph.D. 1985) is recognized here as a Redox Pioneer, because he has published one article on antioxidant/redox biology as first author that has been cited over 1000 times and has published another 32 articles, each cited over 100 times. Dr. Stocker received his undergraduate education at the Federal Institute of Technology Zürich, Switzerland (1975-1981), followed by postgraduate training at the Australian National University Canberra, Australia (1982-1985) and postdoctoral training at the University of California, Berkeley (1986-1987), and the University of Berne, Switzerland (1987-1988). Dr. Stocker's top scientific contributions are in the following areas: (i) molecular action and interaction of nonproteinaceous antioxidants, particularly bilirubin, α-tocopherol, and ubiquinol-10; (ii) lipoprotein lipid oxidation and its inhibition, with a particular focus on how α-tocopherol affects these processes; (iii) the role of arterial lipoprotein lipid oxidation in atherosclerosis and related diseases; (iv) modes of antiatherosclerotic action of probucol and the involvement of heme oxygenase-1 in vascular protection; and (v) the regulation of indoleamine 2,3-dioxygenase and its contribution to vascular tone and blood pressure in inflammatory diseases.

  3. Rasch analysis of the Roland disability questionnaire.

    PubMed

    Garratt, Andrew M

    2003-01-01

    A cross-sectional survey using patient questionnaires was conducted. OBJECTIVE To assess whether the Roland Disability Questionnaire satisfies the Rasch model including unidimensionality and item separation. The Roland Disability Questionnaire, the most widely used patient-assessed measure of health outcome for back pain, has undergone several evaluations for its measurement properties including reliability, validity, and responsiveness. However, there is no published work relating to the underlying dimensionality of the instrument and the extent to which individual items contribute to the construct of physical disability resulting from low back pain. Patients entering a randomized controlled trial of exercise, manipulation, and usual management for back pain completed a questionnaire that included the Roland Disability Questionnaire. The Winsteps program was used to assess whether the Roland Disability Questionnaire fits the Rasch model. Item fit was assessed using the Infit and Outfit statistics. The Roland Disability Questionnaire was completed by 1008 (90%) of the patients taking part in the trial. Most of the items in the Roland Disability Questionnaire contribute to a single underlying construct. However, four items had poor Outfit statistics, suggesting that they do not contribute sufficiently to the scale hierarchy. Several items positioned around the middle of the hierarchy are not sufficiently distinct in terms of difficulty. There were very few items positioned at the extremes of the hierarchy. The Roland Disability Questionnaire largely satisfies the Rasch model for unidimensionality. However, the instrument could be improved through the removal of poorly fitting items and the addition of items at the upper and lower points of the scale hierarchy. The distribution of Roland Disability Questionnaire scores should be carefully considered before statistical testing is undertaken. Rasch transformed scores can be used to deal with deficiencies in the scale

  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.

  5. 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

  6. Hereditary chin tremor in Parkinson's disease.

    PubMed

    Erer, Sevda; Jankovic, Joseph

    2007-11-01

    Hereditary chin tremor (HCT) is characterized by rhythmical, involuntary movements of the chin muscles usually inherited in an autosomal dominant pattern. We describe a 74-year old man with familial, childhood-onset chin tremor, and a 3-year history of progressive hand tremor, gait difficulty, and other parkinsonian features. Since chin tremor often occurs in Parkinson's disease (PD), a coexistent HCT may not be recognized unless past and family history of tremor is carefully explored.

  7. 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…

  8. 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…

  9. 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....

  10. 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....

  11. 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....

  12. 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....

  13. 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. (a...

  14. DETAIL OF PLAQUE DESCRIBING LION SCULPTURES BY ROLAND HINTON PERRY, ...

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

    DETAIL OF PLAQUE DESCRIBING LION SCULPTURES BY ROLAND HINTON PERRY, NORTHWEST ABUTMENT - Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Connecticut Avenue, Washington, District of Columbia, DC

  15. Health Information in Hakha Chin (Laiholh)

    MedlinePlus

    ... Someone You Love - English No One Has the Right to Hurt You, Even Someone You Love - Laiholh (Hakha Chin) MP3 California Department of Health Services Refugee Health Section E Expand Section Emergency Medical Services ...

  16. A Neurocognitive Endophenotype Associated with Rolandic Epilepsy

    PubMed Central

    Smith, Anna B; Kavros, Peregrine M; Clarke, Tara; Dorta, Nelson J; Tremont, Geoffrey; Pal, Deb K

    2011-01-01

    Purpose Children with Rolandic Epilepsy (RE) experience difficulties in reading, language and attention. Their siblings are at high risk of dyslexia but are not otherwise known to have neurocognitive deficits. We therefore sought evidence for a RE-associated neurocognitive endophenotype. Methods Thirteen probands (male:female 9:4) and 11 epilepsy-free siblings (male:female 5:6) completed a neurocognitive evaluation within the domains of reading, language and attention. Frequencies of impairment were compared, and mean standardized scores of children with RE and their siblings were each compared against population means. Key findings Frequency of impairment in each domain was comparable for siblings and probands: 9% of siblings and 31% of probands were reading impaired; 36% of siblings and 54% of probands were language impaired; 70% of siblings and 67% of probands had attention impairments. Comparison of differences between sample and population means revealed evidence of a similar pattern of language deficits in both groups, specifically for picture naming and attention to competing words. For measures of attention, both groups made significantly higher omission errors and were impaired in their ability to sustain attention. Significance Children with RE and unaffected siblings demonstrate neurocognitive impairments in the domains of language and attention that are likely to remain undetected with general clinical protocols. Neurocognitively impaired probands and siblings showed a remarkably similar profile of deficits in language and attention that could explain poor academic performance. Early evaluation and intervention may benefit these children academically. PMID:22220688

  17. 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.

  18. Chin Ptosis: Classification, Anatomy, and Correction

    PubMed Central

    Garfein, Evan S.; Zide, Barry M.

    2008-01-01

    For years, the notion of chin ptosis was somehow integrated with the concept of witch's chin. That was a mistake on many levels because chin droop has four major causes, all different and with some overlap. With this article, the surgeon can quickly diagnose which type and which therapeutic modality would work best. In some cases the problem is a simple fix, in others the droop can only be stabilized, and in the final two, definite corrective procedures are available. Of note, in certain situations two types of chin ptosis may overlap because both the patient and the surgeon may each contribute to the problems. For example, in dynamic ptosis, a droop that occurs with smile in the unoperated patient can be exacerbated and further produced by certain surgical methods also. This paper classifies the variations of the problems and explains the anatomy with the final emphasis on long-term surgical correction, well described herein. This article is the ninth on this subject and a review of them all would be helpful (greatly) for understanding the enigmas of the lower face. PMID:22110784

  19. 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…

  20. Roland: A Case for or Against NATO Standardization?

    DTIC Science & Technology

    1980-05-01

    Western Europe, as for example, CROTALE (France), RAPIER (UK), INDIGO (Italy), ROLAND (France/Germany). 8 Colonel Ott’s article was particularly...For example, in one of the European plants, two Turkish girls had the task of adjusting spin rates on some gyros-they did it by listening to the pitch

  1. 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…

  2. 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…

  3. Estimating mandibular motion based on chin surface targets during speech.

    PubMed

    Green, Jordan R; Wilson, Erin M; Wang, Yu-Tsai; Moore, Christopher A

    2007-08-01

    The movement of the jaw during speech and chewing has frequently been studied by tracking surface landmarks on the chin. However, the extent to which chin motions accurately represent those of the underlying mandible remains in question. In this investigation, the movements of a pellet attached to the incisor of the mandible were compared with those of pellets attached to different regions of the chin. Ten healthy talkers served as participants. Three speaking contexts were recorded from each participant: word, sentence, and paragraph. Chin position errors were estimated by computing the standard distance between the mandibular incisor pellet and the chin pellets. Relative to the underlying mandible, chin pellets moved with an average absolute and relative error of 0.81 mm and 7.30%, respectively. The movements of chin and mandibular pellets were tightly coupled in time. The chin tracking errors observed in this investigation are considered acceptable for descriptive studies of oromotor behavior, particularly in situations where mandibular placements are not practical (e.g., young children or edentulous adults). The observed amount of error, however, may not be tolerable for fine-grained analyses of mandibular biomechanics. Several guidelines are provided for minimizing error associated with tracking surface landmarks on the chin.

  4. 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.

  5. Estimating Mandibular Motion Based on Chin Surface Targets During Speech

    PubMed Central

    Green, Jordan R.; Wilson, Erin M.; Wang, Yu-Tsai; Moore, Christopher A.

    2009-01-01

    Purpose The movement of the jaw during speech and chewing has frequently been studied by tracking surface landmarks on the chin. However, the extent to which chin motions accurately represent those of the underlying mandible remains in question. In this investigation, the movements of a pellet attached to the incisor of the mandible were compared with those of pellets attached to different regions of the chin. Method Ten healthy talkers served as participants. Three speaking contexts were recorded from each participant: word, sentence, and paragraph. Chin position errors were estimated by computing the standard distance between the mandibular incisor pellet and the chin pellets. Results Relative to the underlying mandible, chin pellets moved with an average absolute and relative error of 0.81 mm and 7.30%, respectively. The movements of chin and mandibular pellets were tightly coupled in time. Conclusion The chin tracking errors observed in this investigation are considered acceptable for descriptive studies of oromotor behavior, particularly in situations where mandibular placements are not practical (e.g., young children or edentulous adults). The observed amount of error, however, may not be tolerable for fine-grained analyses of mandibular biomechanics. Several guidelines are provided for minimizing error associated with tracking surface landmarks on the chin. PMID:17675597

  6. Modified technique of chin augmentation with MEDPOR for Asian patients.

    PubMed

    Lin, Jinde; Chen, Xiaoping

    2012-09-01

    Commonly used chin implants are made of silicone, expanded polytetrafluoroethylene (e-PTFE), or high-density porous polyethylene (MEDPOR). Although MEDPOR is an effective implant for chin augmentation, modification of the external aspect of the implant is recommended, particularly for Asian patients, to create an appropriate shape for the new chin. It is often difficult to contour the inner aspect of the implant to conform to the patient's mandible. Without modification, a gap may exist between the implant and mandible. To address this problem, a modified augmentation technique was developed. The authors describe their modified technique for MEDPOR chin augmentation, which includes removal of the genial tubercles and, if necessary, the mental protuberance. Ninety-five patients underwent the modified MEDPOR technique of chin augmentation. Before placement of the contoured implant, a drill was used to remove the patient's genial tubercles. If the mental protuberance was deemed too prominent, it was removed as well. The implant was inserted and fixed to the mandible with 2 titanium screws. Results were satisfactory in 90 cases. Chin shape was too "strong" in 4 patients, and another patient had poor transition between the implant and mandible. Complications were minimal. The most common complication in this modified technique was lower lip numbness, which was transient in all cases. The MEDPOR chin implant can be effectively contoured to the mandible by removing the genial tubercle and/or mental protuberance. This technique is less invasive than chin osteotomy. Successful results can be achieved with minimal risks.

  7. 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…

  8. Importance of the chin in achieving a feminine lower face: narrowing the chin by the "mini V-line" surgery.

    PubMed

    Lee, Tae Sung; Kim, Hye Young; Kim, Takho; Lee, Ji Hyuck; Park, Sanghoon

    2014-11-01

    Surgery to narrow the chin is usually combined with mandible reduction, both of which may greatly improve the aesthetics of the lower face. However, some patients have a disproportionately wide chin without an excessive mandible angle. In these cases, it is possible to achieve a harmonic and well-balanced lower face by simply narrowing the anterior portion of the mandible, including the chin, and leaving the posterior part of the mandible untouched. Patients with a wide chin not willing to undergo mandible angle reduction or those with no indications for mandible reduction were considered primary candidates for the surgery. Patients with unsatisfactory results after previous mandible contouring surgeries were also considered eligible for this procedure. Narrowing genioplasty was performed by the T-osteotomy technique followed by further reduction of the bony steps at the chin-mandible junction. Among the 248 patients, 64.9% were primary cases that had a wide lower face mainly because of prominence in the chin region. The other 35.1% of the cases were patients with a prior surgical history of mandible reduction with dissatisfactory results, especially from the frontal view. All patients showed improved lower face contours after surgery, and patients were satisfied with their surgical outcomes. Balance between the chin and the lower face is essential to obtain an aesthetically pleasing face. Surgeons planning lower face contouring surgery should consider their options carefully, as chin narrowing surgery alone without mandible angle reduction can be used to achieve aesthetically pleasing results in selected cases.

  9. Massive expanding hematoma of the chin following blunt trauma

    PubMed Central

    Niazi, K. Thanvir Mohamed; Raja, Dharmesh Kumar; Prakash, R.; Balaji, V. R.; Manikandan, D.; Ulaganathan, G.; Yoganandha, R.

    2016-01-01

    Posttraumatic hematoma of the face is common and usually self-limiting in nature. We report an unusual massive expanding hematoma of the chin within 9 h following a blunt trauma with no associated injuries or fracture. PMID:27829776

  10. CHINs in the context of an evolving health care system.

    PubMed Central

    Duncan, K. A.

    1996-01-01

    Community Health Information Network (CHIN) developments have slowed, due to the chaotic change in the health care system and stakeholders' attendant short-sighted focus. CHINs are a long-term investment that is necessary for the health care system's evolution to maturity. Several arenas of essential CHIN activity are given that would be characteristic of a mature, goal-directed health care system Lack of enterprise-wide computer-based patient record systems is a major barrier. Even in the short term, however, trends and incentives exist that are likely to push stakeholders toward CHIN development. Some of these trends include changes in organizational structure and political pressures. Practical incentives include the need for stakeholder cooperation to achieve healthy communities, the prospects for telemedicine, and the demand for greater quality assurance. PMID:8947737

  11. 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.

  12. MAP Estimation of Chin and Cheek Contours in Video Sequences

    NASA Astrophysics Data System (ADS)

    Kampmann, Markus

    2004-12-01

    An algorithm for the estimation of chin and cheek contours in video sequences is proposed. This algorithm exploits a priori knowledge about shape and position of chin and cheek contours in images. Exploiting knowledge about the shape, a parametric 2D model representing chin and cheek contours is introduced. Exploiting knowledge about the position, a MAP estimator is developed taking into account the observed luminance gradient as well as a priori probabilities of chin and cheek contours positions. The proposed algorithm was tested with head and shoulder video sequences (image resolution CIF). In nearly 70% of all investigated video frames, a subjectively error free estimation could be achieved. The 2D estimate error is measured as on average between 2.4 and[InlineEquation not available: see fulltext.].

  13. Massive expanding hematoma of the chin following blunt trauma.

    PubMed

    Niazi, K Thanvir Mohamed; Raja, Dharmesh Kumar; Prakash, R; Balaji, V R; Manikandan, D; Ulaganathan, G; Yoganandha, R

    2016-10-01

    Posttraumatic hematoma of the face is common and usually self-limiting in nature. We report an unusual massive expanding hematoma of the chin within 9 h following a blunt trauma with no associated injuries or fracture.

  14. A flipped spoon and chin prompt to increase mouth clean.

    PubMed

    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 spoon alone. The greatest increases in mouth clean resulted from the combination of the 2 manipulations.

  15. Dual Plane Augmentation Genioplasty Using Gore-Tex Chin Implants

    PubMed Central

    Kim, Byung Jun; Lim, Jong Woo; Park, Ji Hoon

    2014-01-01

    Background The chin shape and position is important in determining the general shape of the face, and augmentation genioplasty is performed alone or in combination with other aesthetic procedures. However, augmentation genioplasty using osteotomy is an invasive and complex procedure with the potential to damage mentalis muscle and mental nerve, to affect chin growth, and prolonged recovery. Our aim was to present our experience with a modified augmentation genioplasty procedure for hypoplastic chins using a Gore-Tex implant. Methods Two vertical slit incisions were made at the canine level to create a supraperiosteal pocket between the incisions, preserving the periosteum and mentalis muscle. Minimal sub-periosteal dissection was performed lateral to the incisions along the mandibular border. The both wings of implant were inserted under the periosteum to achieve a stable dual plane implantation. Results In total, 47 patients underwent dual plane chin augmentation using a Gore-Tex implant between January 2008 and May 2013. The mean age at operation was 25.77 years (range, 15-55 years). There were 3 cases of infection; one patient was treated with antibiotics, the others underwent implant removal. Additionally, two patients complained of postoperative parasthesia that spontaneously improved without any additional treatment. Most patients were satisfied with the postoperative outcomes, and no chin growth problems were observed among the younger patients. Conclusion Dual plane Gore-Tex chin augmentation is a minimally-invasive operation that is simple and safe. All implants yielded satisfactory results with no significant complications such as mental nerve injury, lower lip incompetence, or chin growth limitation.

  16. Numb chin syndrome: a nonmetastatic neurological manifestation of malignancy.

    PubMed

    Smith, Samantha Fleur; Blackman, Glen; Hopper, Colin

    2008-03-01

    Numb chin syndrome, sometimes called numb lip syndrome, is an uncommon but well-recognized symptom in medical oncology. It may be a nonmetastatic neurological manifestation of malignancy, often with no clinically visible pathology. We report a case of a 79-year-old woman with widespread metastatic disease secondary to breast carcinoma who presented with a left-sided numb lip and chin. The patient had no clinical or radiographic pathology within the head and neck region. Numb chin syndrome is almost unknown within the dental and oral and maxillofacial community, despite being well reported in the medical literature. We urge all general dentists, oral medicine specialists, and oral and maxillofacial surgeons to consider metastatic cancer in patients with unexplained facial hypoesthesia.

  17. Characteristics of Dry Chin-Tuck Swallowing Vibrations and Sounds

    PubMed Central

    Dudik, Joshua M; Jestrović, Iva; Luan, Bo; Coyle, James L.; Sejdić, Ervin

    2015-01-01

    Objective The effects of the chin-tuck maneuver, a technique commonly employed to compensate for dysphagia, on cervical auscultation are not fully understood. Characterizing a technique that is known to affect swallowing function is an important step on the way to developing a new instrumentation-based swallowing screening tool. Methods In this study, we recorded data from 55 adult participants who each completed five saliva swallows in a chin-tuck position. The resulting data was processed using previously designed filtering and segmentation algorithms. We then calculated 9 time, frequency, and time-frequency domain features for each independent signal. Results We found that multiple frequency and time domain features varied significantly between male and female subjects as well as between swallowing sounds and vibrations. However, our analysis showed that participant age did not play a significant role on the values of the extracted features. Finally, we found that various frequency features corresponding to swallowing vibrations did demonstrate statistically significant variation between the neutral and chin-tuck positions but sounds showed no changes between these two positions. Conclusion The chin-tuck maneuver affects many facets of swallowing vibrations and sounds and its effects can be monitored via cervical auscultation. Significance These results suggest that a subject’s swallowing technique does need to be accounted for when monitoring their performance with cervical auscultation based instrumentation. PMID:25974926

  18. 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.

  19. 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…

  20. 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…

  1. The Clinical Implications of Todd Paralysis in Children With Benign Rolandic Epilepsy.

    PubMed

    Dai, Alper I; Demiryürek, Seniz

    2016-03-01

    The aim of this study was to describe the clinical and electroencephalographic (EEG) findings of postictal Todd paralysis in benign rolandic epilepsy of childhood and find out the possible correlation with migraine. Based on International Headache Society pediatric migraine criteria, patients were investigated for migraine, and 12 of the 108 patients with benign rolandic epilepsy (6 girls and 6 boys, 11.1%) were found to have postictal Todd paralysis. Ten of these 12 patients (83.3%) had pediatric migraine based on the diagnostic criteria. We showed comorbidity of migraine and benign rolandic epilepsy with postictal Todd paralysis in children. Increased incidence of migraine in the present study suggest that children who have benign rolandic epilepsy and postictal Todd paralysis are more likely to have migraines.

  2. Numb chin syndrome secondary to leptomeningeal carcinomatosis from gastric adenocarcinoma

    PubMed Central

    Riesgo, Vincent J.; Poveda, Julio; Rammohan, Kottil

    2015-01-01

    Numb chin syndrome (NCS) can be a sign of malignancy. Its association with gastric adenocarcinoma is rare. We report a case of a 27-year-old Hispanic female that presented with complaint of left sided headache associated with numbness of the left side of chin and lower gingiva. Initial brain MRI, whole body gallium scan, high resolution CT of chest and elevated protein in the CSF were suggestive of sarcoidosis. She was treated with IV steroids with transient clinical improvement. Two weeks later, her symptoms worsened and further evaluation revealed the diagnosis of a poorly differentiated metastatic gastric adenocarcinoma with leptomeningeal involvement. This case report aims to emphasize the importance of identifying NCS as a possible indication of an underlying malignant condition. Reported cases of NCS associated with metastatic gastric adenocarcinoma are very rare. PMID:25830044

  3. 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

  4. Risk factors for reading disability in families with rolandic epilepsy.

    PubMed

    Vega, Yaiza Hernández; Smith, Anna; Cockerill, Hannah; Tang, Shan; Agirre-Arrizubieta, Zaloa; Goyal, Sushma; Pina, Marisa; Akman, Cigdem I; Jolleff, Nicola; McGinnity, Colm; Gomez, Kumudini; Gupta, Rajesh; Hughes, Elaine; Jackman, John; McCormick, David; Oren, Caroline; Scott, David; Taylor, Jacqueline; Trounce, John; Clarke, Tara; Kugler, Steven; Mandelbaum, David E; McGoldrick, Patricia; Wolf, Steven; Strug, Lisa J; Pal, Deb K

    2015-12-01

    The high prevalence and impact of neurodevelopmental comorbidities in childhood epilepsy are now well known, as are the increased risks and familial aggregation of reading disability (RD) and speech sound disorder (SSD) in rolandic epilepsy (RE). The risk factors for RD in the general population include male sex, SSD, and ADHD, but it is not known if these are the same in RE or whether there is a contributory role of seizure and treatment-related variables. An observational study of 108 probands with RE (age range: 3.6-22 years) and their 159 siblings (age range: 1-29 years; 83 with EEG data) were singly ascertained in the US or UK through a proband affected by RE. We used a nested case-control design, multiple logistic regression, and generalized estimating equations to test the hypothesis of an association between RD and seizure variables or antiepileptic drug treatment in RE; we also assessed an association between EEG focal sharp waves and RD in siblings. Reading disability was reported in 42% of probands and 22% of siblings. Among probands, RD was strongly associated with a history of SSD (OR: 9.64, 95% CI: 2.45-37.21), ADHD symptoms (OR: 10.31, 95% CI: 2.15-49.44), and male sex (OR: 3.62, 95% CI: 1.11-11.75) but not with seizure or treatment variables. Among siblings, RD was independently associated only with SSD (OR: 4.30, 95% CI: 1.42-13.0) and not with the presence of interictal EEG focal sharp waves. The principal risk factors for RD in RE are SSD, ADHD, and male sex, the same risk factors as for RD without epilepsy. Seizure or treatment variables do not appear to be important risk factors for RD in probands with RE, and there was no evidence to support interictal EEG focal sharp waves as a risk factor for RD in siblings. Future studies should focus on the precise neuropsychological characterization of RD in families with RE and on the effectiveness of standard oral-language and reading interventions. Copyright © 2015 Elsevier Inc. All rights reserved.

  5. Risk factors for reading disability in rolandic epilepsy families

    PubMed Central

    Vega, Yaiza Hernández; Smith, Anna; Cockerill, Hannah; Tang, Shan; Agirre-Arrizubieta, Zaloa; Goyal, Sushma; Pina, Marisa; Akman, Cigdem I; Jolleff, Nicola; McGinnity, Colm; Gomez, Kumudini; Gupta, Rajesh; Hughes, Elaine; Jackman, John; McCormick, David; Oren, Caroline; Scott, David; Taylor, Jacqueline; Trounce, John; Clarke, Tara; Kugler, Steven; Mandelbaum, David E; McGoldrick, Patricia; Wolf, Steven; Strug, Lisa J; Pal, Deb K

    2015-01-01

    OBJECTIVE The high prevalence and impact of neurodevelopmental comorbidities in childhood epilepsy are now well known, as are the increased risks and familial aggregation of reading disability (RD) and speech sound disorder (SSD) in rolandic epilepsy (RE). The risk factors for RD in the general population include male sex, SSD and ADHD but it is not known if these are the same in RE or whether there is a contributory role of seizure and treatment related variables. METHODS An observational study of 108 RE probands (age range 3.6–22 years) and their 159 siblings (age range 1–29 years; 83 with EEG data) singly ascertained in the US or UK through an affected RE proband. We used a nested case-control design, multiple logistic regression and generalized estimating equations to test the hypothesis of association between RD and seizure variables or antiepileptic drug treatment in RE; we also assessed an association between EEG focal sharp waves and RD in siblings. RESULTS RD was reported in 42% of probands and 22% of siblings. Among probands, RD was strongly associated with a history of SSD (OR 9.64, 95% CI: 2.45–37.21), ADHD symptoms (OR 10.31, 95% CI: 2.15–49.44), and male sex (OR 3.62, 95% CI: 1.11–11.75), but not with seizure or treatment variables. Among siblings, RD was independently associated only with SSD (OR 4.30, 95%CI: 1.42–13.0) and not with the presence of interictal EEG focal sharp waves. SIGNIFICANCE The principal risk factors for RD in RE are SSD, ADHD and male sex, the same risk factors as for RD without epilepsy. Seizure or treatment variables do not appear to be important risk factors for RD in RE probands, and there was no evidence to support interictal EEG focal sharp waves as a risk factor for RD in siblings. Future studies should focus on the precise neuropsychological characterisation of RD in RE families, and on the effectiveness of standard oral-language and reading interventions. PMID:26580214

  6. 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. Copyright © 2014 Elsevier Inc. All rights reserved.

  7. Chin development as a result of differential jaw growth.

    PubMed

    Marshall, Steven D; Low, Laura E; Holton, Nathan E; Franciscus, Robert G; Frazier, Mike; Qian, Fang; Mann, Kyle; Schneider, Galen; Scott, Jill E; Southard, Thomas E

    2011-04-01

    During facial growth, the maxilla and mandible translate downward and forward. Although the forward displacement of the maxilla is less than that of the mandible, the interarch relationship of the teeth in the sagittal view during growth remains essentially unchanged. Interdigitation is thought to provide a compensatory (tooth movement) mechanism for maintaining the pattern of occlusion during growth: the maxillary teeth move anteriorly relative to the maxilla while the mandibular teeth move posteriorly relative to the basilar mandible. The purpose of this study was to investigate the hypothesis that the human chin develops as a result of this process. Twenty-five untreated subjects from the Iowa Facial Growth Study with Class I normal occlusion were randomly selected based on availability of cephalograms at T1 (mean = 8.32 yr) and T2 (mean = 19.90 yr). Measurements of growth (T2 minus T1) parallel to the Frankfort horizontal (FH) for the maxilla, maxillary dentition, mandible, mandibular dentition, and pogonion (Pg) were made. Relative to Pg (a stable bony landmark), B-point moved posteriorly, on average 2.34 mm during growth, and bony chin development (B-point to Pg) increased concomitantly. Similarly, the mandibular and maxillary incisors moved posteriorly relative to Pg 2.53 mm and 2.76 mm, respectively. A-point, relative to Pg, moved posteriorly 4.47 mm during growth. Bony chin development during facial growth occurs, in part, from differential jaw growth and compensatory dentoalveolar movements. Copyright © 2011 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.

  8. Morbidity of harvesting of chin grafts: a prospective study.

    PubMed

    Nkenke, E; Schultze-Mosgau, S; Radespiel-Tröger, M; Kloss, F; Neukam, F W

    2001-10-01

    In a prospective study, 20 patients who underwent harvesting of chin grafts as outpatients, were followed up for 12 months (3 further patients with incomplete follow-up data were excluded from the study). Preoperatively and 7 days, 1, 3, 6 and 12 months postoperatively, follow-up data were assessed. Evaluation of the superficial sensory function of the inferior alveolar nerve was determined by the Pointed-Blunt Test and the Two-Point-Discrimination Test. Sensory disturbances were objectively assessed by testing thermal sensitivity with the "Pain and Thermal Sensitivity" Test (PATH Test). In addition, evaluation of the pulp sensitivity of teeth 35-45 was carried out by cold vitality testing. One week postoperatively, 8 patients were affected by superficial sensory impairment. 8 nerve territories showed hypoaesthetic reactions and 5 showed hyperaesthetic reactions. After 12 months, two patients still suffered from hypoaesthesia of one side of the chin. There was a statistically significant sensitivity impairment of the chin for all patients comparing the preoperative data of the Two-Point-Discrimination Test (left/right median: 8.17/8.17 mm, interquartile range (IQR) 1.00/2.00 mm) with the first postoperative measurement (left/right median 9.00/8.33 mm, IQR 1.67/2.66 mm). Comparing the latter to the last postoperative measurement there was significant tendency for regeneration of a nerve function (left/right median 8.00/7.84 mm, IQR 0.66/2.00 mm). In the PATH Test all hypoaesthetic areas could be identified by a reduction of thermal sensitivity. After the first postoperative examination 21.6% (n=38/176) of the examined teeth had lost their pulp sensitivity. After 12 postoperative months 11.4% (n=20/176) still did not react sensitively. Many of these were canines (n=8/20). Comparing the preoperative to the first postoperative examination, there was a significant reduction of pulp sensitivity. However, statistically significant recovery until the last postoperative

  9. Autogenous Fat Grafting for Chin Augmentation: A Preliminarily Clinical Study of Cosmetic Outcome.

    PubMed

    Wang, Qianwen; Guo, Xin; Wang, Jiaqi

    2015-10-01

    Preoperative evaluation and surgical details of chin fat augmentation aiming at increasing the projection of the original mentum are scarcely reported. Herein, the authors systematically reviewed the application of fat grafting for chin augmentation in our institution from 2010 to 2014. This percutaneously multilayered fat-injection technology can be applied for chin augmentation for a subset of patients after strict selection, and the details of lipofilling technology and fat distribution vary depending on each individual patient's condition. Mentum can be augmented in the sagittal plane in different degrees, whereas the chin height seems unable to be effectively prolonged by lipofilling.

  10. The application of rapid prototyping technique in chin augmentation.

    PubMed

    Li, Min; Lin, Xin; Xu, Yongchen

    2010-04-01

    This article discusses the application of computer-aided design and rapid prototyping techniques in prosthetic chin augmentation for mild microgenia. Nine cases of mild microgenia underwent an electrobeam computer tomography scan. Then we performed three-dimensional reconstruction and operative design using computer software. According to the design, we determined the shape and size of the prostheses and made an individualized prosthesis for each chin augmentation with the rapid prototyping technique. With the application of computer-aided design and a rapid prototyping technique, we could determine the shape, size, and embedding location accurately. Prefabricating the individual prosthesis model is useful in improving the accuracy of treatment. In the nine cases of mild microgenia, three received a silicone implant, four received an ePTFE implant, and two received a Medpor implant. All patients were satisfied with the results. During follow-up at 6-12 months, all patients remained satisfied. The application of computer-aided design and rapid prototyping techniques can offer surgeons the ability to design an individualized ideal prosthesis for each patient.

  11. Item response theory analysis of the modified Roland-Morris Disability Questionnaire in a population-based study.

    PubMed

    Mielenz, Thelma J; Carey, Timothy S; Edwards, Michael C

    2015-03-15

    This is a secondary analysis of a cross-sectional population-based survey. Shorten the modified 23-item Roland (mRoland) scale using item response theory (IRT) methods and describe where in the functional disability range each scale is the most precise. The Roland-Morris Disability Questionnaire is recommended for a functional disability outcome measure in patients with low back pain (LBP). One commonly used version is the Roland. It is unknown where in the functional disability range the Roland measures. One candidate individual with LBP in randomly selected households was interviewed, identifying 694 adults with chronic LBP. To justify the use of a unidimensional 2-parameter logistic IRT model, we performed both exploratory and confirmatory factor analysis. Exploratory factor analysis revealed one dominant eigenvalue. Confirmatory factor analysis results indicate that the 1-factor model fit well. IRT analysis revealed variability in the slopes, in the range from 1.07 to 3.10. The marginal reliability, an IRT-based analog to coefficient α, was 0.88. The mRoland produces reliable scores (i.e., with a standard error <0.3) from 1.4 standard deviations below the mean to roughly 0.2 above the mean. The mRoland measures one construct. The mRoland seems to be an excellent tool for measuring just-below-average levels of functional disability. The mRoland measures high levels of functional disability with relatively poor reliability and may be more appropriate for a less-disabled population with LBP. We demonstrate that the mRoland can be shortened to 11 items with minimal loss of information. We show that there are different ways to go about selecting the set of 11 items that yield short forms with different strengths. 3.

  12. "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…

  13. "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…

  14. Kinesigenic reflex epilepsy associated with a glioma in the lateral peri-rolandic region.

    PubMed

    Hoque, Romy; Gonzalez-Toledo, Edouardo; Korniychuk, Elena; Dellabadia, John; Jaffe, Stephen L

    2009-03-01

    A patient with kinesigenic focal motor seizures induced by tongue-jaw movement had a grade III astrocytoma clearly co-localizing with the epileptic network in the appropriate peri-rolandic, motor-sensory, lingual-jaw cortical area. The clinical seizure phenomena were time-locked with the EEG epileptic activity. [Published with video sequences].

  15. Wavelet entropy of BOLD time series: An application to Rolandic epilepsy.

    PubMed

    Gupta, Lalit; Jansen, Jacobus F A; Hofman, Paul A M; Besseling, René M H; de Louw, Anton J A; Aldenkamp, Albert P; Backes, Walter H

    2017-03-11

    To assess the wavelet entropy for the characterization of intrinsic aberrant temporal irregularities in the time series of resting-state blood-oxygen-level-dependent (BOLD) signal fluctuations. Further, to evaluate the temporal irregularities (disorder/order) on a voxel-by-voxel basis in the brains of children with Rolandic epilepsy. The BOLD time series was decomposed using the discrete wavelet transform and the wavelet entropy was calculated. Using a model time series consisting of multiple harmonics and nonstationary components, the wavelet entropy was compared with Shannon and spectral (Fourier-based) entropy. As an application, the wavelet entropy in 22 children with Rolandic epilepsy was compared to 22 age-matched healthy controls. The images were obtained by performing resting-state functional magnetic resonance imaging (fMRI) using a 3T system, an 8-element receive-only head coil, and an echo planar imaging pulse sequence ( T2*-weighted). The wavelet entropy was also compared to spectral entropy, regional homogeneity, and Shannon entropy. Wavelet entropy was found to identify the nonstationary components of the model time series. In Rolandic epilepsy patients, a significantly elevated wavelet entropy was observed relative to controls for the whole cerebrum (P = 0.03). Spectral entropy (P = 0.41), regional homogeneity (P = 0.52), and Shannon entropy (P = 0.32) did not reveal significant differences. The wavelet entropy measure appeared more sensitive to detect abnormalities in cerebral fluctuations represented by nonstationary effects in the BOLD time series than more conventional measures. This effect was observed in the model time series as well as in Rolandic epilepsy. These observations suggest that the brains of children with Rolandic epilepsy exhibit stronger nonstationary temporal signal fluctuations than controls. 2 J. Magn. Reson. Imaging 2017. © 2017 International Society for Magnetic Resonance in Medicine.

  16. Choosing the Best Procedure to Augment the Chin: Is Anything Better than an Implant?

    PubMed

    Sykes, Jonathan M; Fitzgerald, Rebecca

    2016-10-01

    The chin plays a very important role in overall facial appearance, and aesthetic procedures to augment the chin in patients with microgenia can improve overall facial balance. Many procedures exist to enhance the appearance of a small chin. Procedures include surgeries such as placement of an alloplast implant and bony osteotomy of the mentum (sliding genioplasty). The advantages and disadvantages of each surgical technique are well documented. Although surgical augmentation of the chin has been the gold standard of therapy, recent development of injectable filler products with lifting capacity has changed the way that many practitioners alter chin shape and size. Filler agents allow augmentation of the chin in horizontal (projection), vertical, and transverse dimensions. Injectable fillers are a simple, noninvasive procedure that causes minimal to no downtime, incurs minimal risks, and allows the practitioner to shape the chin in three dimensions. This procedure allows patients to enhance their chin size without requiring an operative visit. As more and varied filler products become FDA-approved, the versatility and application of these agents will increase.

  17. What is the chin-down posture? A questionnaire survey of speech language pathologists in Japan and the United States.

    PubMed

    Okada, Sumiko; Saitoh, Eiichi; Palmer, Jeffrey B; Matsuo, Koichiro; Yokoyama, Michio; Shigeta, Ritsuko; Baba, Mikoto

    2007-07-01

    The "chin-down" or "chin-tuck" maneuver is a postural technique widely used in dysphagia treatment. The posture, however, does not have a precise anatomical definition. We studied the current practice of 42 speech-language pathologists (SLPs) in Japan and the U.S. with a questionnaire survey regarding the chin-down posture. The main findings were that (1) three of five of the pictures were selected by respondents both in Japan and in the U.S. as depicting the chin-down posture; (2) 23% of Japanese and 58% of the U.S. SLPs made a distinction between chin down and chin tuck; and (3) the use of anatomical terminology by SLPs differed between the two countries. This study showed that there is poor agreement among SLPs about the meaning of the chin-down and chin-tuck postures. Developing a precise definition is important because various postures may have differing physiologic effects.

  18. Kinematic and electromyographic comparisons between chin-ups and lat-pull down exercises.

    PubMed

    Doma, Kenji; Deakin, Glen B; Ness, Kevin F

    2013-09-01

    The purpose of this study was to compare kinematics and muscle activity between chin-ups and lat-pull down exercises and between muscle groups during the two exercises. Normalized electromyography (EMG) of biceps brachii (BB), triceps brachii (TB), pectoralis major (PM), latissimus dorsi (LD), rectus abdominus (RA), and erector spinae (ES) and kinematics of back, shoulder, and seventh cervical vertebrae (C7) was analysed during chin-ups and lat-pull down exercises. Normalized EMG of BB and ES and kinematics of shoulder and C7 for chin-ups were greater than lat-pull down exercises during the concentric phase (p < 0.05). For the eccentric phase, RA during lat-pull down exercises was greater than chin-ups and the kinematics of C7 during chin-ups was greater than lat-pull down exercises (p < 0.05). For chin-ups, BB, LD, and ES were greater than PM during the concentric phase, whereas BB and LD were greater than TB, and LD was greater than RA during the eccentric phase (p < 0.05). For lat-pull down exercise, BB and LD were greater than PM, TB, and ES during the concentric phase, whereas LD was greater than PM, TB, and BB during the eccentric phase (p < 0.05). Subsequently, chin-ups appears to be a more functional exercise.

  19. Assessing the influence of chin prominence on perceived attractiveness in the orthognathic patient, clinician and layperson.

    PubMed

    Naini, F B; Donaldson, A N A; McDonald, F; Cobourne, M T

    2012-07-01

    The purpose of this investigation was to undertake an objective and quantitative evaluation of how the degree of chin prominence influences perceived attractiveness. The chin prominence of an idealized profile image was altered in 2 mm increments from -24 to 12 mm, in order to represent retrusion and protrusion of the chin, respectively. These images were rated on a 7-point Likert scale by a pre-selected group of pre-treatment orthognathic patients, clinicians and laypeople. In treatment planning to alter the sagittal prominence of the chin in an individual with an otherwise normal soft tissue facial profile, an 'ideal' sagittal position with soft tissue pogonion on or just behind a true vertical line through subnasale may be used. Chin retrusion or protrusion up to 4mm is essentially unnoticeable. Surgery is desired for chin protrusions greater than 6mm and retrusions greater than 10mm. The overall direction of aesthetic opinion appears to be the same for all the observer groups; the greater the retrusion or prominence of the chin, the less the rating of the perceived attractiveness and the greater the desire for surgical correction. Copyright © 2012 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  20. 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

  1. A meta-analysis of literacy and language in children with rolandic epilepsy.

    PubMed

    Smith, Anna B; Bajomo, Omotomilola; Pal, Deb K

    2015-11-01

    Rolandic epilepsy is the most common childhood epilepsy, often presenting with neuropsychological impairments. The aim of the study was to formally assimilate the findings of existing studies varying widely in methodology, thereby confirming the nature and prevalence of impairments in literacy and language. Using meta-analytical techniques, we evaluated 22 studies of literacy and/or language skills in children with rolandic epilepsy, published after 2000, among participants with IQs>70 and in which effect sizes could be acquired. Diagnosis required the presence of classical centrotemporal spikes arising from a normal background on electroencephalograms; a clinical history including at least one seizure; and no additional neurological condition. Overall effect size and heterogeneity were measured for single-word reading, phonological processing, and expressive and receptive language. Mean effect sizes (Cohen's d) ranged from 0.50 (95% confidence interval [CI] 0.23-0.78) for phonological processing, through 0.71 (95% CI 0.52-0.90) for word reading and 0.72 (95% CI 0.34-1.1) for receptive language, to 0.75 (95% CI 0.45-1.05) for expressive language. While group differences for reading measures were consistent, those for language were heterogeneous and varied across studies explained by age and IQ of samples. The presence of reading and phonological processing deficits in children with rolandic epilepsy highlights the importance of early literacy and language assessment in this population. © 2015 Mac Keith Press.

  2. Altered Regional Homogeneity in Rolandic Epilepsy: A Resting-State fMRI Study

    PubMed Central

    Tang, Ye-Lei; Ji, Gong-Jun; Yu, Yang; Wang, Jue; Wang, Zhong-Jin; Zang, Yu-Feng; Liao, Wei; Ding, Mei-Ping

    2014-01-01

    Children with rolandic epilepsy (RE) are often associated with cognitive deficits and behavioral problems. Findings from neurophysiological and neuroimaging studies in RE have now demonstrated dysfunction not only in rolandic focus, but also in distant neuronal circuits. Little is known, however, about whether there is distributed abnormal spontaneous brain activity in RE. Using resting-state functional magnetic resonance imaging (RS-fMRI), the present study aimed to determine whether children with RE show abnormal local synchronization during resting state and, if so, whether these changes could be associated with the behavioral/clinical characteristics of RE. Regional homogeneity (ReHo) in children with RE (n = 30) and healthy children (n = 20) was computed on resting-state functional MRI data. In comparison with healthy children, children with RE showed increased ReHo in the central, premotor, and prefrontal regions, while they showed decreased ReHo in bilateral orbitofrontal cortex and temporal pole. In addition, the ReHo value in the left orbitofrontal cortex negatively was corrected with performance intelligence quotient in the children with RE. The aberrant local synchronization, not strictly related to primary site of the typical rolandic focus, indicates the neuropathophysiological mechanism of RE. The study findings may shed new light on the understanding of neural correlation of neuropsychological deficiencies in the children with RE. PMID:25247197

  3. Combined treatment with botulinum toxin and hyaluronic acid to correct unsightly lateral-chin depression*

    PubMed Central

    Braz, André Vieira; Louvain, Dailana; Mukamal, Luana Vieira

    2013-01-01

    With aging, anatomical changes are observed in the face. In the lower third, these changes are expressed as ptosis of the angle of the mouth, lip enhancement groove mentalis; decrease in concavity between the jaw and neck and very noticeable platysmal banding. The repeated contraction of muscles of the lateral-chin together with the band platysmal side form what are called a marionette groove. Treating the whole lateral-chin area can result in a more harmonious aspect of the face when compared with treatment of a marionette groove in isolation. In this paper we describe combined treatment of the lateral chin area using botulinum toxin and fillers. PMID:23539022

  4. 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.

  5. Orthopedic Effect of Chin Cup during Mixed Dentition Stage.

    PubMed

    Al-Khalifa, Hussein N; Hashem, Mohamed I; Alanazi, Khalid J; Anil, Sukumaran

    2017-05-01

    Chin cup (CC) therapy has been used as the traditional appliance for treating class III malocclusion during mixed dentition period. The aim of this study was to investigate the effect of CC on the improvement of skeletal and dentoalveo-lar skeletal changes in class III patients during mixed dentition stage. A total of 30 patients (7-9 years old) with skeletal class III malocclusion were selected based on clinical and cephalometric examination. Out of 30 patients, 20 underwent CC therapy. All orthodontic records and measurements were taken before and after treatment. Similar records were collected from the control group. The lateral cephalometric films were traced before and after treatment and analyzed. There was a significant improvement in maxillary and the mandibular skeletal measurements after CC therapy. Improvement of ANB angle and an increase in Wits appraisal have been detected in the treated group according to intermaxillary skeletal variables. The study concluded that the CC therapy is effective for correcting skeletal class III malocclusion along with positive changes in the dentoskeletal variables during the mixed dentition stage.

  6. Neurosurgical management of intractable rolandic epilepsy in children: role of resection in eloquent cortex. Clinical article.

    PubMed

    Benifla, Mony; Sala, Francesco; Jane, John; Otsubo, Hiroshi; Ochi, Ayako; Drake, James; Weiss, Shelly; Donner, Elizabeth; Fujimoto, Ayataka; Holowka, Stephanie; Widjaja, Elysa; Snead, O Carter; Smith, Mary Lou; Tamber, Mandeep S; Rutka, James T

    2009-09-01

    The authors undertook this study to review their experience with cortical resections in the rolandic region in children with intractable epilepsy. The authors retrospectively reviewed the medical records obtained in 22 children with intractable epilepsy arising from the rolandic region. All patients underwent preoperative electroencephalography (EEG), MR imaging, prolonged video-EEG recordings, functional MR imaging, magnetoencephalography, and in some instances PET/SPECT studies. In 21 patients invasive subdural grid and depth electrode monitoring was performed. Resection of the epileptogenic zones in the rolandic region was undertaken in all cases. Seizure outcome was graded according to the Engel classification. Functional outcome was determined using validated outcome scores. There were 10 girls and 12 boys, whose mean age at seizure onset was 3.2 years. The mean age at surgery was 10 years. Seizure duration prior to surgery was a mean of 7.4 years. Nine patients had preoperative hemiparesis. Neuropsychological testing revealed impairment in some domains in 19 patients in whom evaluation was possible. Magnetic resonance imaging abnormalities were identified in 19 patients. Magnetoencephalography was performed in all patients and showed perirolandic spike clusters on the affected side in 20 patients. The mean duration of invasive monitoring was 4.2 days. The mean number of seizures during the period of invasive monitoring was 17. All patients underwent resection that involved primary motor and/or sensory cortex. The most common pathological entity encountered was cortical dysplasia, in 13 children. Immediately postoperatively, 20 patients had differing degrees of hemiparesis, from mild to severe. The hemiparesis improved in all affected patients by 3-6 months postoperatively. With a mean follow-up of 4.1 years (minimum 2 years), seizure outcome in 14 children (64%) was Engel Class I and seizure outcome in 4 (18%) was Engel Class II. In this series, seizure

  7. Total lower lip and chin reconstruction with radial forearm free flap: A novel approach.

    PubMed

    Dewey, Eliza H; Roche, Ansley M; Lazarus, Cathy L; Urken, Mark L

    The management of large chin and lower lip defects is challenging due to this facial subunit's tremendous functional and aesthetic importance. Specific methods for total lower lip and mentum reconstruction are not well chronicled. Aesthetic and functional goals of this reconstruction include restoration of oral competence by maintaining lower lip height, vermilion reestablishment, color-matched skin introduction to the chin, sensation restoration, and ideally restoration of dynamic activity to the lower lip. Literature review performed. Presentation of novel, two-stage technique for lower lip and chin reconstruction with a submental flap and a radial forearm free flap, suspension of the lower lip and chin with a tensor fascia lata graft, and vermilion reconstruction with a buccal mucosal flap. This procedure meets all goals of total lower lip reconstruction with the exception of the introduction of dynamic tissue and represents a novel solution to a challenging reconstructive problem. Copyright © 2017 Elsevier Inc. All rights reserved.

  8. Chin prompt plus re-presentation as treatment for expulsion in children with feeding disorders.

    PubMed

    Wilkins, Jonathan W; Piazza, Cathleen C; Groff, Rebecca A; Vaz, Petula C M

    2011-01-01

    Expulsion (spitting out food) is a problem behavior observed in many children with feeding disorders. In the current investigation, we identified 4 children diagnosed with a feeding disorder who exhibited high rates of expulsion. Treatment with re-presentation (placing expelled liquids or solids back into the child's mouth) was not effective in reducing expulsion. Therefore, we added a chin-prompt procedure (the feeder applied gentle upward pressure to the child's chin and lower lip) for the initial presentation and the re-presentation. Chin prompt plus re-presentation resulted in low rates of expulsion for all 4 children. The results are discussed in terms of the potential underlying mechanisms behind the effectiveness of the chin-prompt procedure.

  9. 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.

  10. The Sequence of Swallowing Events During the Chin-Down Posture

    PubMed Central

    Young, Jennifer L.; Macrae, Phoebe; Anderson, Cheryl; Taylor-Kamara, Isha

    2015-01-01

    Purpose This study investigated the effect of the chin-down posture on the sequence of swallowing events in healthy adults. Method Sixteen healthy participants performed 45 5-ml thin liquid swallows during videofluoroscopy: 5 neutral head position, 30 chin-down posture, and then 10 neutral head position. Eight swallowing events were measured: the time of hyoid burst, bolus head in the pharynx, bolus tail in the pharynx, laryngeal vestibule closure (LVC), upper esophageal sphincter (UES) opening, bolus head in the UES, bolus tail exiting the pharynx, and laryngeal vestibule opening (LVO). Results Our key finding is that LVC was one of the first 3 swallowing events in 69% of neutral swallows and in 78% of chin-down swallows (p = .006). Also, LVO occurred last in 14% of chin-down swallows but never occurred last in the preceding neutral swallows (p ≤ .001). Thus, in chin-down swallows, LVC occurred earlier and LVO occurred later. Conclusions The chin-down posture may be beneficial for individuals with delayed onset of LVC and reduced duration of the LVC. Future studies are needed to examine this effect in individuals with dysphagia. PMID:26225454

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

    PubMed Central

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

    2015-01-01

    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

  12. 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.

  13. 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

  14. Bilateral Rolandic operculum processing underlying heartbeat awareness reflects changes in bodily self-consciousness.

    PubMed

    Blefari, Maria Laura; Martuzzi, Roberto; Salomon, Roy; Bello-Ruiz, Javier; Herbelin, Bruno; Serino, Andrea; Blanke, Olaf

    2017-05-01

    Exteroceptive bodily signals (including tactile, proprioceptive and visual signals) are important information contributing to self-consciousness. Moreover, prominent theories proposed that visceral signals about internal bodily states are equally or even more important for self-consciousness. Neuroimaging studies have described several brain regions which process signals related to bodily self-consciousness (BSC) based on the integration of exteroceptive signals (e.g. premotor cortex, angular gyrus, supramarginal gyrus and extrastriate body area), and that another brain region, the insula/operculum which is involved in interoception and interoceptive awareness, processes signals critical for self-awareness. Providing evidence for the integration of exteroceptive and interoceptive bodily signals, recent behavioral experiments have demonstrated that the manipulation of interoceptive (e.g. cardiac) signals, coupled with exteroceptive (e.g. visual) signals, also modulates BSC. Does this integration occur within or outside the structures described above? To this end, we adapted a recently designed protocol that uses cardio-visual stimulation to induce altered states of BSC to fMRI. Additionally, we measured neural activity in a classical interoceptive task. We found six brain regions (bilateral Rolandic operculum, bilateral supramarginal gyrus, right frontal inferior operculum and left temporal superior gyrus) that were activated differently during the interoception task as opposed to a control task. The brain regions which showed the highest selectivity for BSC based on our cardio-visual manipulation were found in the bilateral Rolandic operculum. Given our findings, we propose that the Rolandic operculum processes integrated exteroceptive-interoceptive signals that are necessary for interoceptive awareness as well as BSC. © 2017 Federation of European Neuroscience Societies and John Wiley & Sons Ltd.

  15. [In memory of Roland Kuhn (1912-2005) and 50 years of imipramine].

    PubMed

    Bossong, F

    2008-09-01

    Based on his clinical experience and knowledge in the humanities, phenomenology, and natural sciences, the Swiss psychiatrist and Rorschach expert Roland Kuhn discovered the specific antidepressant effect of imipramine in the treatment of vital depressive disorder. This discovery of the first tricyclic antidepressant drug shows how an education covering the various fields of psychiatry facilitates therapeutic and scientific achievements. Kuhn's methods as a psychiatrist and his papers can show present and future generations of psychiatrist ways to make new discoveries in the field of psychiatry, psychotherapy, and psychopharmacology.

  16. Tongue contractions during speech may have led to the development of the bony geometry of the chin following the evolution of human language: a mechanobiological hypothesis for the development of the human chin.

    PubMed

    Ichim, Ionut; Kieser, Jules; Swain, Michael

    2007-01-01

    One of the most fundamental yet unanswered questions of human evolution is that of the development of the chin. Whereas it is known that the chin, or mentum osseum, is an unique anatomical feature of modern humans that emerged during the Middle and Late Pleistocene, its origin and biomechanical significance are the subjects of intense controversy. Theories range from the suggestion that the chin evolved as a result of progressive reduction of the dental arch, which left it as a protrusion, to the hypothesis that it provided resistance to mandibular bending during mastication. Until now however, no accepted functional explanation of the human chin has emerged. Here, we develop the hypothesis that the actions of the tongue and non-masticatory orofacial muscles may have played a significant role on the development of the human chin. We report numerical simulations of the forces and resultant stresses developed in hypothetical chinned and non-chinned mandibles. Using empirical data and estimates of the forces generated by the human tongue during speech, our hypothesis suggests that the chin might in fact have developed as a result of the actions of the tongue and perioral muscles, rather than as a buttress to withstand masticatory induced stress. This provides a new perspective on the generation of the chin and importantly, suggests that its appearance may be causally related to the development of the human language.

  17. Comparison of the functional rating index and the 18-item Roland-Morris Disability Questionnaire: responsiveness and reliability.

    PubMed

    Chansirinukor, Wunpen; Maher, Christopher G; Latimer, Jane; Hush, Julia

    2005-01-01

    Retrospective design. To compare the responsiveness and test-retest reliability of the Functional Rating Index and the 18-item version of the Roland-Morris Disability Questionnaire in detecting change in disability in patients with work-related low back pain. Many low back pain-specific disability questionnaires are available, including the Functional Rating Index and the 18-item version of the Roland-Morris Disability Questionnaire. No previous study has compared the responsiveness and reliability of these questionnaires. Files of patients who had been treated for work-related low back pain at a physical therapy clinic were reviewed, and those containing initial and follow-up Functional Rating Index and 18-item Roland-Morris Disability Questionnaires were selected. The responsiveness of both questionnaires was compared using two different methods. First, using the assumption that patients receiving treatment improve over time, various responsiveness coefficients were calculated. Second, using change in work status as an external criterion to identify improved and nonimproved patients, Spearman's rho and receiver operating characteristic curves were calculated. Reliability was estimated from the subset of patients who reported no change in their condition over this period and expressed with the intraclass correlation coefficient and the minimal detectable change. One hundred and forty-three patient files were retrieved. The responsiveness coefficients for the Functional Rating Index were greater than for the 18-item Roland-Morris Disability Questionnaire. The intraclass correlation coefficient values for both questionnaires calculated from 96 patient files were similar, but the minimal detectable change for the Functional Rating Index was less than for the 18-item Roland-Morris Disability Questionnaire. The Functional Rating Index seems preferable to the 18-item Roland-Morris Disability Questionnaire for use in clinical trials and clinical practice.

  18. Effectiveness of Chin-tuck Maneuver to Facilitate Swallowing in Neurologic Dysphagia.

    PubMed

    Saconato, Mariana; Chiari, Brasilia Maria; Lederman, Henrique Manoel; Gonçalves, Maria Inês Rebelo

    2016-01-01

    Introduction The chin-tuck maneuver is the most frequently employed postural maneuver in the treatment of neurogenic oropharyngeal dysphagia caused by encephalic vascular strokes and degenerative diseases. Objective The purpose of this study was to investigate the effectiveness of this maneuver in patients with neurogenic dysphagia and factors that could interfere in it. Methods In this retrospective cohort, we analyzed the medical files and videofluoroscopy exams of 35 patients (19 male - 54% and 16 female - 46%; age range between 20 and 89 years old; mean = 69 years). Results The results suggest that the effectiveness of chin-tuck maneuver is related to the overall degree of dysphagia: the more severe the dysphagia, the less effective the maneuver. Conclusion Chin-tuck maneuver should benefit dysphagic patients with delay in the swallowing trigger, reduced laryngeal elevation, and difficulties to swallow liquids, but is not the best compensatory strategy for patients with severe dysphagia.

  19. Reconstruction of the chin using an expanded deltopectoral flap following multiple recurrences of oral cancer

    PubMed Central

    Balakrishnan, Chenicheri; Hackenson, David; Balakrishnan, Anila; Elliott, David; Careaga, Daniel

    2012-01-01

    An important alternative to free tissue transfer in patients requiring correction of soft tissue chin defects are local and regional flaps, such as the pectoralis major myocutaneous flap and deltopectoral flap. With predictable vascular supply, potential for large size, and good aesthetic match for facial and cervical skin, the deltopectoral flap can offer the reconstructive surgeon additional options in patients who lack vessels suitable for free tissue transfer. The use of an expanded deltopectoral flap for a staged reconstruction of the chin in a patient with cancer recurrences, concomitant resections, radiation and multiple reconstructions is reported. PMID:23997595

  20. [Cortical mapping and neurophysiological monitoring during resection of an arteriovenous malformation in the rolandic region].

    PubMed

    Vega-Zelaya, Lorena; Pedrosa-Sánchez, Manuel; Pastor, Jesús

    2014-07-01

    INTRODUCTION. Surgery of arteriovenous malformations of eloquent areas has a significant risk of causing severe neurological deficits. CASE REPORT. A 39 years old woman having a headache, showed an arteriovenous malformation in right rolandic region. During resection, performed under general anesthesia, a neurophysiological mapping and subsequently intraoperative neurophysiological monitoring of motor and somatosensory functions was performed. The temporary closure of an artery resulted in a severe motor impairment, reversible after remove the clipping, so that artery had to be respected during the intervention. After resection, the motor and sensory responses were normal. The patient was discharged without any neurological deficits. CONCLUSION. Functional mapping and intraoperative neurophysiological monitoring were very helpful for the identification and protection of eloquent areas. The use of these techniques for resection of arteriovenous malformations located in functionally relevant areas, allows a safely surgery in patients under general anesthesia.

  1. Rolandic beta-band activity correlates with decision time to move.

    PubMed

    Jo, Han-Gue; Hinterberger, Thilo; Wittmann, Marc; Schmidt, Stefan

    2016-03-11

    Research findings link rolandic beta-band activity to voluntary movements, but a linkage with the decision time to move remains unknown. We found that beta-band (16-28Hz) activity shortly before the movement onset is relevant for the decision time to move: the more pronounced the decrease in beta-band synchronization, the earlier the subjective experience of the decision to move. The linkage was relevant regarding 'decision', but not regarding 'intention' timing that has been often applied in the study of free will. Our findings suggest that oscillatory neural activity in the beta-band is an important neural signature pertaining to the subjective experience of making a decision to move.

  2. Epilepsy surgery of the rolandic and immediate perirolandic cortex: surgical outcome and prognostic factors.

    PubMed

    Delev, Daniel; Send, Knut; Wagner, Jan; von Lehe, Marec; Ormond, D Ryan; Schramm, Johannes; Grote, Alexander

    2014-10-01

    Herein we present a single-center retrospective study of patients who underwent epilepsy surgery for seizures arising from the sensorimotor (rolandic) cortex. The goal was to find prognostic factors associated with better seizure outcome and to evaluate both surgical and neurologic outcomes. A total of 66 patients fulfilled eligibility criteria and were included in the study. Patients were divided into two groups for analysis: patients with resections within rolandic cortex (RO group; n = 46), and patients with resections in immediate perirolandic cortex and simultaneous sensorimotor multiple subpial transections (IPR group; n = 20). Favorable postoperative seizure outcome (International League Against Epilepsy [ILAE]; ILAE1-ILAE3) was achieved in 42 patients (64%), 39 (59%) of whom were completely seizure-free (ILAE1). The favorable seizure outcome in the RO group (72%) was better than in the IPR group (45%) (p = 0.04, relative risk [RR] 0.51 [0.28-0.94, 95% CI]). Eighteen patients (34%) had a postoperative permanent neurologic deficit. Independent predictors for excellent seizure outcome (ILAE1) after multivariate regression analysis were complete resection of the lesion (p < 0.001), pathology (p = 0.009), age at surgery (p = 0.03), and the absence of preoperative simple partial seizures (p = 0.01). With a 64% favorable seizure outcome, surgery for intractable epilepsy arising from sensorimotor cortex is possible and can be worthwhile. The increased risk for postoperative neurologic deficits is higher than in other locations, and this must be discussed with patients in detail prior to surgery. Best postoperative results can be achieved in cases in which a complete resection is possible without damaging eloquent cortical areas. Wiley Periodicals, Inc. © 2014 International League Against Epilepsy.

  3. Reliability, validity, sensitivity and specificity of Guajarati version of the Roland-Morris Disability Questionnaire.

    PubMed

    Nambi, S Gopal

    2013-01-01

    The most common instruments developed to assess the functional status of patients with Non specific low back pain is the Roland-Morris Disability Questionnaire (RMDQ). Clinical and epidemiological research related to low back pain in the Gujarati population would be facilitated by the availability of well-established outcome measures. To find the reliability, validity, sensitivity and specificity of the Gujarati version of the RMDQ for use in Non Specific Chronic low back pain. A reliability, validity, sensitivity and specificity study of Gujarati version of the Roland-Morris Disability Questionnaire (RMDQ). Thirty out patients with Non Specific Chronic low back pain were assessed by the RMDQ. Reliability is assessed by using internal consistency and the intra-class correlation coefficient (ICC). Internal construct validity is assessed by RASCH Analysis and external construct validity is assessed by association with pain and spinal movement. Clinical calculator was used to determine the sensitivity and specificity. Internal consistency of the RMDQ is found to be adequate (> 0.65) at both times, with high ICC's also at both time points. Internal construct validity of the scale is good, indicating a single underlying construct. Expected associations with pain and spinal movement confirm external construct validity. The Sensitivity and Specificity at cut off point of 0.5 was 80% and 84% with respectively positive predictive value (PPV) of 83.33% and negative predictive value (NPV) of 80.76%. The Questionnaire is at the ordinal level. The RMDQ is a one-dimensional, ordinal measure, which works well in the Gujarati population.

  4. Spatial changes of the chin in the vertical and sagittal planes after superior repositioning of the maxilla.

    PubMed

    Arabion, Hamidreza; Tabrizi, Reza; Fattahi, Hamidreza; Khaghaninezhad, Mohammadsaleh; Bahramnia, Fatemeh

    2015-05-01

    The mandible autorotates after maxillary superior repositioning. The aim of this study was to address the changes in chin position in the vertical and sagittal planes after maxillary superior repositioning. This cross-sectional study assessed participants who had class I occlusion with vertical maxillary excess and underwent maxillary superior repositioning. Two lateral cephalograms were taken in central occlusion and natural head position. The amount of maxillary superior repositioning was documented for every participant according to lateral cephalometric indices. The distance between the most prominent point of the chin and a perpendicular line from N to the Frankfort line was used to determine the sagittal changes of the chin before and after surgery. The distance from the N point to Me was used to assess the vertical changes of the chin before and after operation. The Pearson correlation test was used to determine the correlation between the amount of maxillary superior repositioning and the vertical and horizontal changes of the chin. The linear regression model was applied to predict the changes of the chin (dependent factor) according to the vertical change of the maxilla (predictive factor). The occlusal plane angle change, mandibular length, and mandibular plane angle were considered as variable factors. Twenty participants were studied. Analysis of the data demonstrated a significant correlation between the maxillary superior repositioning (predictive factor) and the horizontal and vertical changes of the chin. For every 1  mm of vertical change in the maxilla, the chin could be expected to move 0.21  mm horizontally. For a standard deviation increase of 1 in the maxillary position, the chin advanced by 0.753 of the standard deviation (β = 0.753). For every 1-mm change of the maxilla vertically, it could be estimated that the chin moved 0.71  mm vertically when the amount of maxillary impaction was 8  mm or less. For an increase in standard

  5. Nest site selection in native and exotic trees by Black-chinned Hummingbirds

    Treesearch

    Deborah M. Finch; Jeffrey Kelly

    2002-01-01

    We studied nest site selection and nesting success in Black-chinned Hummingbirds (Archilochus alexandri) along the middle Rio Grande, New Mexico. The study was conducted in association with an exotic woody plant removal program to determine whether the removal of exotic plants would affect wildlife populations and nesting success, either positively or negatively. Point...

  6. Videomanometric analysis of supraglottic swallow, effortful swallow, and chin tuck in healthy volunteers.

    PubMed

    Bülow, M; Olsson, R; Ekberg, O

    1999-01-01

    Simultaneous videoradiography and solid-state manometry (videomanometry) was applied in eight healthy volunteers (four women, four men; age range 25-64 years, mean age 41 years) without swallowing problems. Three different swallowing techniques were tested; supraglottic swallow, effortful swallow, and chin tuck. Seven videoradiographic variables and six manometric variables were analyzed. The supraglottic swallowing technique did not differ significantly from that of the control swallows. The effortful swallow had a significantly (p = 0.0001) reduced hyoid-mandibular distance preswallow due to an elevation of the hyoid and the larynx, which caused a significantly (p = 0.007) reduced maximal hyoid movement and a significantly (p = 0.009) reduced laryngeal elevation during swallow. The chin tuck swallow had a significantly (p = 0. 001) reduced laryngohyoid distance and also a significantly (p = 0. 004) reduced hyoid-mandibular distance. The chin tuck swallow also displayed significantly (p = 0.003) weaker pharyngeal contractions. Videomanometry allows for analysis of bolus transport, movement of anatomical structures, and measurement of intraluminal pressures. These variables are important when evaluating swallowing techniques. In the present study, we made a few observations that never have been reported before. When healthy volunteers performed supraglottic swallow, they performed the technique somewhat differently. Therefore, we assume dysphagic patients would need a substantial period of training to perform a technique efficiently. Chin tuck could impair protection of the airways in dysphagic patients with weak pharyngeal constrictor muscles.

  7. [Hole fracture of the base of the skull following a fall on the chin].

    PubMed

    Metzner, G; Stichnoth, E; Brinkmann, B

    1984-01-01

    A 26-year-old healthy female died a few hours after having fallen on her chin. Death had been caused by an epidural hematoma which originated from a hole fracture following impression of the condyle of the mandible through the socket of the temporo mandibular joint.

  8. [Analysis of articles published in Chin J Surg since founded in 1951].

    PubMed

    Xia, Shuang; Li, Jing

    2016-01-01

    To discuss the characteristics of the articles published in Chin J Surg from 1951 to 2015. The journals and articles of Acad Surg from 1951 to 1952 and Chin J Surg from 1953 to 2015 were analyzed. The subjects, foundation, basic medical study, international cooperation of the articles were recorded. In 65 years, there were 20 090 academic articles published in Chin J Surg. The proportions of general surgery, orthopedic surgery, thoracocardiac surgery, urology surgery and neurosurgery articles were 34.08%, 17.96%, 13.09%, 11.91% and 5.85%, respectively. There were 14.83% (1 728/11 653) articles receiving foundation, and 9.42% (1 817/19 290) articles reporting basic medical study. There were 14.8% articles from international authors and 119 articles with international cooperation. From 2000 to 2003, 29 articles in original English were published. The coverage of Chin J Surg contains all the fields of surgery. It tends to publish the studies focus on clinical issues.Through reinforcing the content plan and optimizing the show form, the more Chinese surgical research achievements could be shared by the surgeons worldwide.

  9. 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.

  10. Papular Acne Scars of the Nose and Chin: An Under-recognised Variant of Acne Scarring

    PubMed Central

    Ali, Faisal R; Kirk, Michael; Madan, Vishal

    2016-01-01

    Background: Scarring following acne vulgaris is common and can be of profound psychosocial consequence. Aims and Objectives: We have clinically noted a variant of acne scarring, overlooked by previous categorisation schemes, which we have denominated as papular acne scars of the nose and chin. We sought to characterise these novel entities further. Materials and Methods: Initially, we identified 14 patients with papular acne scars of the nose and chin in a cosmetic dermatology clinic, of whom two were female and rest were male. We then prospectively evaluated 100 consecutive patients attending our tertiary referral acne isotretinoin clinic and 49 patients attending a general dermatology clinic. Results: Amongst 149 patients, from a general dermatology and tertiary acne clinic, soft papular scars were noted in four patients, distributed on the nose and chin. Three of the four patients were male, three patients had additional acne scars and the median age was 23.5. Conclusions: We have identified 18 patients with papular acne scars of the nose and chin and propose that this new category should be added to acne scarring classification schemes. Future work should be directed at corroborating the epidemiology of such lesions and describing effective treatment modalities. PMID:28163455

  11. 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

    2016-08-01

    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.

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

    PubMed

    Caero, Jennifer E; Cohen, Philip R

    2012-09-15

    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.

  13. Effectiveness of chin-down posture to prevent tracheal aspiration in dysphagia secondary to acquired brain injury. A videofluoroscopy study.

    PubMed

    Terré, R; Mearin, F

    2012-05-01

    The chin-down posture is generally recommended in patients with neurogenic dysphagia to prevent tracheal aspiration; however, its effectiveness has not been demonstrated. To videofluoroscopically (VDF) assess the effectiveness of chin-down posture to prevent aspiration in patients with neurogenic dysphagia secondary to acquired brain injury. Randomized, alternating, cross-over study (with and without the chin-down posture) in 47 patients with a VDF diagnosis of aspiration [31 stroke, 16 traumatic brain injury (TBI)] and 25 controls without aspiration (14 stroke, 11 TBI). During the chin-down posture, 55% of patients avoided aspiration (40% preswallow aspiration and 60% aspiration during swallow). The percentage was similar in both etiologies (58% stroke and 50% TBI). Fifty-one percent of patients had silent aspiration; of these, 48% persisted with aspiration while in the chin-down posture. A statistically significant relationship was found between the existence of pharyngeal residue, cricopharyngeal dysfunction, pharyngeal delay time and bolus volume with the persistence of aspiration. The chin-down posture did not change swallow biomechanics in patients without aspiration. Only half the patients with acquired brain injury avoided aspiration during cervical flexion; 48% of silent aspirators continued to aspire during the maneuver. Several videofluoroscopic parameters were related to inefficiency of the maneuver. Therefore, the indication for chin-down posture should be evaluated by videofluoroscopic examination. © 2012 Blackwell Publishing Ltd.

  14. Psychiatric and Neurocognitive Evaluation Focused on Frontal Lobe Functions in Rolandic Epilepsy

    PubMed Central

    AYAZ, Muhammed; KARAKAYA, Işık; AYAZ, Ayşe Burcu; KARA, Bülent; KUTLU, Mahire

    2013-01-01

    Introduction In this study, we aimed to assess the behavioral problems, psychiatric disorders and neurocognitive functions focusing on frontal lobe functions in children with rolandic epilepsy (RE) and compare them with a control group. Method 31 children with RE, aged between 8 and 13,5 years were compared with a control group matched for age, sex and socioeconomic status. Behavioral problems were assessed by the Child Behavior Checklist (CBCL) and psychiatric diagnoses were established by using the Kiddie Schedule for Affective Disorders and Schizophrenia Present and Lifetime Version. The Wechsler Intelligence Scale for Children-Revised (WISC-R), Wisconsin Card Sorting Test (WCST) and the Stroop Color and Word Test (SCWT) were applied in both groups of children. Result The RE group presented more psychiatric disorders than the control group. Verbal and total IQ scores in the RE group were lower than in the control group. Although the groups did not differ from each other in WCST scores, children with RE displayed lower performance in SCWT. The RE group had a higher externalizing score and higher total scores in CBCL. Conclusion It was concluded that RE did not affect basic frontal lobe functions significantly, had negative effects on attention and IQ performance and increased behavioral problems and psychiatric disorders.

  15. 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

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

    PubMed

    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.

  17. Psychometric properties of a modified version of the Roland-Morris disability questionnaire (M-RMDQ).

    PubMed

    Asghari, Ali

    2011-09-01

    Chronic pain can be associated with limitations in patient function. Assessment of pain-related limitations is one of the important outcome domains that should be considered when designing chronic pain clinical trials. Although a validated instrument for the assessment of pain-related disability in Iranian chronic low back pain (CLBP) patients exists, to date there is no psychometrically sound instrument to measure pain-related physical disability amongst Iranian chronic pain patients suffering from pain in other parts of their bodies. Six hundred chronic pain patients completed the Modified version of the Roland-Morris disability questionnaire (M-RMDQ) in addition to questionnaires on demographic variables, pain intensity and depression. Internal consistency, test-retest reliability, and concurrent and predictive validity were calculated for the M-RMDQ. Internal consistency of the M-RMDQ items was acceptable (Cronbach's alpha=0.88). Test-retest reliability with a mean 36-day interval between assessments in 76 chronic pain patients was high (ICC=0.90). Concurrent validity was confirmed via significant correlations between the scores of M-RMDQ, depression and pain intensity. Predictive validity of the M-RMDQ was confirmed as it successfully differentiated pain clinic chronic pain patients from the non-pain clinic chronic pain population. The M-RMDQ has adequate reliability and validity and can be used as a sound measure of physical disability associated with chronic pain among the Iranian population.

  18. Are dyslexia and dyscalculia associated with Rolandic epilepsy? A short report on ten Italian patients.

    PubMed

    Canavese, Carlotta; Rigardetto, Roberto; Viano, Vilma; Vittorini, Roberta; Bassi, Bianca; Pieri, Ilaria; Capizzi, Giorgio

    2007-12-01

    Rolandic epilepsy (RE) is the most common childhood epilepsy syndrome with a good, long-term outcome. Nevertheless, some studies indicate that children with RE have more scholastic and neuropsychological problems than controls. The purpose of this study was to describe neuropsychological findings in a small group of Italian children with RE, focusing on dyslexia and dyscalculia. Possible correlations between these findings and the age-at-onset of seizures, duration of active epilepsy, frequency, type and localization of epileptic discharges were examined. Children affected by RE, aged nine to eleven years were selected from patients admitted to the outpatient service of our Clinic. They underwent cognitive evaluation, specific evaluation for dyslexia and dyscalculia, and awake and sleep EEG recordings. We found two patients out of the ten with dyscalculia, one of whom also had characteristics of dyslexia. This small study suggests that dyscalculia and dyslexia might be more frequent than expected in children with RE. No significant correlations between this finding and EEG, seizure-frequency or age-at-onset of epilepsy were found in our patients.

  19. Fitting the CHIN (community health information network) to the customer: three case studies.

    PubMed

    Rabunski, J S; Weil, J P

    1995-01-01

    Each of the case studies described above is typical of many health care organizations in the northeastern United States. The reasons each of these three organizations seeks to form or participate in a CHIN varies-from establishing the loyalty of practicing physicians in a community hospital's struggle to survive, through sharing of real-time patient care data in a successful community-wide effort to avoid expensive duplication of services, to driving the transition from a multihospital integrated delivery system to a full-risk accountable health plan. While the need to reduce costs, by taking advantage of economies of scale and prospectively monitoring utilization, is common to all three organizations, selecting the type of CHIN that best fits each scenario, with particular emphasis on aspects of control, is the key success factor.

  20. Numb chin syndrome as a manifestation of jaw metastasis diagnosed in a bone scan.

    PubMed

    Noriega, E; Sabaté-Llobera, A; Benítez, A; Martínez, G A; Rodríguez-Rubio, J; Mora, J

    2016-01-01

    In many cases, numb chin syndrome (NCS) may represent a banal pathology. However, as it can be associated with malignant processes, its presence should alert the clinician of a possible occult disease. In patients already diagnosed with cancer, it often represents an ominous sign that indicates poor prognosis, due to the rapid progress of the disease. The case is presented of a 62-year-old man diagnosed with synchronous lung and bladder cancer, who suddenly complained of numbness in the chin. The bone scan confirmed the suspicion of metastastic bone disease, and the patient died two months after the appearance of this sign. Copyright © 2015 Elsevier España, S.L.U. y SEMNIM. All rights reserved.

  1. Bone resorption under chin implants: The orthodontist's role in its diagnosis and management.

    PubMed

    Polo, Mario

    2017-01-01

    Alloplastic chin implants have been a valuable treatment modality for the correction of microgenia. Their use has provided satisfactory esthetic results by improving facial balance. However, bone resorption under these implants can occur. Case reports of 4 patients with the incidental radiographic finding of the presence of chin implants are presented. All 4 subjects had lateral cephalograms and panoramic x-rays taken as part of their orthodontic evaluation. One had a normal mandibular symphyseal contour, and 3 had bone resorption under the implants. One subject had severe resorption. In addition to panoramic and cephalometric x-rays, the subject with severe resorption also had magnetic resonance imaging and computerized tomography as part of the evaluation workup.

  2. The Effect of Chin-cup Therapy in Class III Malocclusion: A Systematic Review

    PubMed Central

    Mousoulea, Sophia; Tsolakis, Ioannis; Ferdianakis, Efstratios; Tsolakis, Apostolos I.

    2016-01-01

    Background: The treatment of Class III malocclusion has been challenging for orthodontists. Among a plethora of treatment modalities, the chin-cup is considered a traditional appliance for early orthopedic intervention. Objective: The present study aims to investigate the current scientific evidence regarding the effectiveness of chin-cup therapy in Class III malocclusion of prognathic growing patients. Method: A systematic review of the literature was conducted using PubMed/Medline and the Cochrane Central Register of Controlled Trials from January 1954 to October 2015. Articles were selected based on established inclusion/ exclusion criteria. Results: The search strategy resulted in 3285 articles.14 studies were selected for the final analysis. They were all CCTs, 13 of retrospective and 1 of prospective design. Methodological quality was evaluated by a risk of bias assessment, as suggested by the Cochrane Risk of Bias Assessment Tool for Non-Randomized Studies on Interventions. The reported evidence presented favorable short-term outcomes both in hard and soft tissues improving the Class III profile, as well as desirable dento-alveolar changes, positively affecting the Class III malocclusion. Conclusion: There is considerable agreement between studies that chin-cup therapy can be considered for the short-term treatment of growing patients with Class III malocclusion, as indicated by favorable changes both in the hard and soft tissues. The existence of considerable risk of bias in all selected studies and the unclear long-term effectiveness of chin-cup therapy highlight the need for further investigation to draw reliable conclusions. PMID:28077971

  3. Geographic variation in chin shape challenges the universal facial attractiveness hypothesis.

    PubMed

    Thayer, Zaneta M; Dobson, Seth D

    2013-01-01

    The universal facial attractiveness (UFA) hypothesis proposes that some facial features are universally preferred because they are reliable signals of mate quality. The primary evidence for this hypothesis comes from cross-cultural studies of perceived attractiveness. However, these studies do not directly address patterns of morphological variation at the population level. An unanswered question is therefore: Are universally preferred facial phenotypes geographically invariant, as the UFA hypothesis implies? The purpose of our study is to evaluate this often overlooked aspect of the UFA hypothesis by examining patterns of geographic variation in chin shape. We collected symphyseal outlines from 180 recent human mandibles (90 male, 90 female) representing nine geographic regions. Elliptical Fourier functions analysis was used to quantify chin shape, and principle components analysis was used to compute shape descriptors. In contrast to the expectations of the UFA hypothesis, we found significant geographic differences in male and female chin shape. These findings are consistent with region-specific sexual selection and/or random genetic drift, but not universal sexual selection. We recommend that future studies of facial attractiveness take into consideration patterns of morphological variation within and between diverse human populations.

  4. 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

  5. 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. © The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  6. Antiepileptic drug treatment of rolandic epilepsy and Panayiotopoulos syndrome: clinical practice survey and clinical trial feasibility

    PubMed Central

    Mellish, Louise C; Dunkley, Colin; Ferrie, Colin D; Pal, Deb K

    2015-01-01

    Background The evidence base for management of childhood epilepsy is poor, especially for the most common specific syndromes such as rolandic epilepsy (RE) and Panayiotopoulos syndrome (PS). Considerable international variation in management and controversy about non-treatment indicate the need for high quality randomised controlled trials (RCT). The aim of this study is, therefore, to describe current UK practice and explore the feasibility of different RCT designs for RE and PS. Methods We conducted an online survey of 590 UK paediatricians who treat epilepsy. Thirty-two questions covered annual caseload, investigation and management practice, factors influencing treatment, antiepileptic drug preferences and hypothetical trial design preferences. Results 132 responded (22%): 81% were paediatricians and 95% at consultant seniority. We estimated, annually, 751 new RE cases and 233 PS cases. Electroencephalography (EEG) is requested at least half the time in approximately 70% of cases; MRI brain at least half the time in 40%–65% cases and neuropsychological evaluation in 7%–8%. Clinicians reported non-treatment in 40%: main reasons were low frequency of seizures and parent/child preferences. Carbamazepine is the preferred older, and levetiracetam the preferred newer, RCT arm. Approximately one-half considered active and placebo designs acceptable, choosing seizures as primary and cognitive/behavioural measures as secondary outcomes. Conclusions Management among respondents is broadly in line with national guidance, although with possible overuse of brain imaging and underuse of EEG and neuropsychological assessments. A large proportion of patients in the UK remains untreated, and clinicians seem amenable to a range of RCT designs, with carbamazepine and levetiracetam the preferred active drugs. PMID:25202134

  7. Chin augmentation

    MedlinePlus

    ... Swelling Other possible complications include: Damage to the teeth Loss of feeling Rare side effects include: Blood clots Infection, sometimes the implant will have to be removed Pain that does ...

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

    PubMed

    Khan, Md Yaser Ahmed; Kishore, M S V; Bukhari, Syed Abid Altaf; Rachala, Madhukar Reddy; Sashidhar, Nagam Reddy

    2016-05-01

    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. 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. 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). 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). 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 when compared with the other two groups.

  9. [Valentin's nerve, its role in the innervation of the chin region. Preliminary report].

    PubMed

    Guyot, L; Cheynet, F; Faissal, A; Gola, R

    1998-06-01

    The mylo-hyoid nerve, a branch of the inferior alveolar nerve, gives rise to many motor and sensory branches. Motor branches innervate the anterior belly of the digastric muscle. Sensitive branches innervate the submandibular gland and also the skin just under the bony chin. Valentin's nerve, the terminal cutaneous branch of the myo-hyoid nerve (described by Valentin in 1843), can be damaged by horizontal mentoplasty (sliding-mentoplasty). Sensory disorders (hypoesthesia, anesthesia) can occur in case of Valentin's nerve injury without lesions to the mental nerve.

  10. Directional scattering from the glossy flower of Ranunculus: how the buttercup lights up your chin.

    PubMed

    Vignolini, Silvia; Thomas, Meredith M; Kolle, Mathias; Wenzel, Tobias; Rowland, Alice; Rudall, Paula J; Baumberg, Jeremy J; Glover, Beverley J; Steiner, Ullrich

    2012-06-07

    The bright and glossy appearance of the flowers of Ranunculus repens was investigated spectroscopically and the optical results were correlated with the layered anatomy of the petal. The highly directional reflected light arises from the partially transparent, pigment-bearing epidermal layer, while a more diffused yellow colour is the result of scattering from the lower starch layer. This directionality of the light reflections causes the unusually intense gloss of the buttercup flower and the strong yellow reflection evident when holding the flower under the chin.

  11. Directional scattering from the glossy flower of Ranunculus: how the buttercup lights up your chin

    PubMed Central

    Vignolini, Silvia; Thomas, Meredith M.; Kolle, Mathias; Wenzel, Tobias; Rowland, Alice; Rudall, Paula J.; Baumberg, Jeremy J.; Glover, Beverley J.; Steiner, Ullrich

    2012-01-01

    The bright and glossy appearance of the flowers of Ranunculus repens was investigated spectroscopically and the optical results were correlated with the layered anatomy of the petal. The highly directional reflected light arises from the partially transparent, pigment-bearing epidermal layer, while a more diffused yellow colour is the result of scattering from the lower starch layer. This directionality of the light reflections causes the unusually intense gloss of the buttercup flower and the strong yellow reflection evident when holding the flower under the chin. PMID:22171065

  12. Displacement of avulsed tooth into soft tissue of chin resulting from epileptic attack trauma.

    PubMed

    Karasu, Hakan Alpay; Uyanik, Lokman Onur; Koçyiğit, Ismail Doruk

    2005-04-01

    Maxillofacial trauma is the main cause of emergency admittance to dental clinics. Mental retardation and epileptic status are important factors in an increase in the risk of dental injuries. Tooth avulsion, which is the total displacement of a tooth out of its socket, is an infrequently observed entity. Maxillary central incisors are the most commonly affected teeth. The case of a patient with severe dental injury resulting from an epileptic attack is presented. He had several teeth avulsed and displacement of a tooth into the soft tissue of the chin.

  13. Mapping between the Roland Morris Questionnaire and generic preference-based measures.

    PubMed

    Khan, Kamran A; Madan, Jason; Petrou, Stavros; Lamb, Sarah E

    2014-09-01

    The Roland Morris Questionnaire (RMQ) is a widely used health status measure for low back pain (LBP). It is not preference-based, and there are currently no established algorithms for mapping between the RMQ and preference-based health-related quality-of-life measures. Using data from randomized controlled trials of treatment for LBP, we sought to develop algorithms for mapping between RMQ scores and health utilities derived using either the EuroQol five-dimensional questionnaire (EQ-5D) or the six-dimensional health state short form (derived from Medical Outcomes Study 36-Item Short-Form Health Survey) (SF-6D). This study is based on data from the Back Skills Training Trial in which data were collected from 701 patients at baseline and subsequently at 3, 6, and 12 months postrandomization using a range of outcome measures, including the RMQ, the EQ-5D, and the Short Form 12 item Health Survey (SF-12) (from which SF-6D utilities can be derived). We used baseline trial data to estimate models using both direct and response mapping approaches to predict EQ-5D and SF-6D health utilities and dimension responses. A multistage model selection process was used to assess the predictive accuracy of the models. We then explored different techniques and mapping models that made use of repeated follow-up observations in the data. The estimated mapping algorithms were validated using external data from the UK Back Pain Exercise and Manipulation trial. A number of models were developed that accurately predict health utilities in this context. The best performing model for RMQ to EQ-5D mapping was a beta regression with Bayesian quasi-likelihood estimation that included 24 dummy variables for RMQ responses, age, and sex as covariates (mean squared error 0.0380) based on repeated data. The model selected for RMQ to SF-6D mapping was a finite mixture model that included the overall RMQ score, age, sex, RMQ score squared, age squared, and an interaction term for age and RMQ score as

  14. Optimization of the Chin Bar of a Composite-Shell Helmet to Mitigate the Upper Neck Force

    NASA Astrophysics Data System (ADS)

    Farajzadeh Khosroshahi, S.; Galvanetto, U.; Ghajari, M.

    2016-11-01

    The chin bar of motorcycle full-face helmets is the most likely region of the helmet to sustain impacts during accidents, with a large percentage of these impacts leading to basilar skull fracture. Currently, helmet chin bars are designed to mitigate the peak acceleration at the centre of gravity of isolated headforms, as required by standards, but they are not designed to mitigate the neck force, which is probably the cause of basilar skull fracture, a type of head injury that can lead to fatalities. Here we test whether it is possible to increase the protection of helmet chin bars while meeting standard requirements. Fibre-reinforced composite shells are commonly used in helmets due to their lightweight and energy absorption characteristics. We optimize the ply orientation of a chin bar made of fibre-reinforced composite layers for reduction of the neck force in a dummy model using a computational approach. We use the finite element model of a human head/neck surrogate and measure the neck axial force, which has been shown to be correlated with the risk of basilar skull fracture. The results show that by varying the orientation of the chin bar plies, thus keeping the helmet mass constant, the neck axial force can be reduced by approximately 30% while ensuring that the helmet complies with the impact attenuation requirements prescribed in helmet standards.

  15. Optimization of the Chin Bar of a Composite-Shell Helmet to Mitigate the Upper Neck Force

    NASA Astrophysics Data System (ADS)

    Farajzadeh Khosroshahi, S.; Galvanetto, U.; Ghajari, M.

    2017-08-01

    The chin bar of motorcycle full-face helmets is the most likely region of the helmet to sustain impacts during accidents, with a large percentage of these impacts leading to basilar skull fracture. Currently, helmet chin bars are designed to mitigate the peak acceleration at the centre of gravity of isolated headforms, as required by standards, but they are not designed to mitigate the neck force, which is probably the cause of basilar skull fracture, a type of head injury that can lead to fatalities. Here we test whether it is possible to increase the protection of helmet chin bars while meeting standard requirements. Fibre-reinforced composite shells are commonly used in helmets due to their lightweight and energy absorption characteristics. We optimize the ply orientation of a chin bar made of fibre-reinforced composite layers for reduction of the neck force in a dummy model using a computational approach. We use the finite element model of a human head/neck surrogate and measure the neck axial force, which has been shown to be correlated with the risk of basilar skull fracture. The results show that by varying the orientation of the chin bar plies, thus keeping the helmet mass constant, the neck axial force can be reduced by approximately 30% while ensuring that the helmet complies with the impact attenuation requirements prescribed in helmet standards.

  16. Ectoparasites of the black-chinned siskin Spinus barbatus (Passeriformes: Fringillidae) in Chile.

    PubMed

    Fuentes-Castillo, Danny; Cicchino, Armando; Mironov, Sergey; Moreno, Lucila; Landaeta-Aqueveque, Carlos; Barrientos, Carlos; González-Acuña, Daniel

    2016-01-01

    Despite being a bird with a broad and extensive distribution in Chile, the black-chinned siskin, Spinus barbatus Molina, 1782 is not well studied in relation to its parasites. This paper aims to describe the ectoparasite fauna of S. barbatus in central and southern Chile. A total of 125 individuals caught with mist nets were examined alive; a total of 22 parasites were found dead and were exposed to parasit autopsy. The extracted parasites were preserved in 70% alcohol for subsequent mounting and identification. Ectoparasites were found in 56 black-chinned siskins (38%); 48 of them (33%) had 870 mites - 680 feather mites (Astigmata: Analgoidea) were identified as Proctophyllodes spini, 167 as Knemidokoptes jamaicensis, 19 as Strelkoviacarus critesi, and one as Analges passerinus. Moreover, three mites were chiggers belonging to the tribe Schoengastiini (Prostigmata: Trombiculidae). In 21 birds (14%), 54 lice were found, 21 of which were identified as Philopterus roehreri, 18 as Myrsidea serini, and 15 as Ricinus carolynae. Endoparasites were not found in the necropsied individuals. All of the parasites that were found represent new records for Chile, and they also serve as new records of host-parasite associations for S. barbatus.

  17. Numb chin syndrome with vagal and hypoglossal paralysis: an initial sign of an uncommon diagnosis.

    PubMed

    García-Álvarez, Sheila M; Olondo-Zulueta, Lourdes; Pericás, Juan Manuel; Colomo, Lluis; Bosch, Xavier

    2012-09-01

    In this study, the case of a 58-year-old man with a 2-month history of left chin paresthesia with difficulty swallowing and chewing, and dysphonia is reported. He had an absence of the gag reflex, unilateral palatal palsy and deviation of the tongue upon attempted protrusion with unilateral atrophy. Magnetic resonance imaging of the skull base revealed a tumoral infiltration of the left side of Meckel's cave, involvement of the clivus with extension into the cavernous sinus and signs of focal leptomeningeal infiltration. The patient was eventually diagnosed with generalized Burkitt's lymphoma. In this study, the authors suggest an initial diagnostic workup that includes a computed tomography scan of the mandible and a magnetic resonance imaging of the skull base searching for malignancy in patients with isolated numb chin syndrome, a rare disorder often associated with cancer, especially breast cancer and lymphoma, with mandibular metastases, leptomeningeal seeding and metastases of the base of the skull explaining the origin of the syndrome in most cases.

  18. Treatment effects of chin cup appliance on mandible in Class III malocclusion: strain tensor analysis. A pilot study.

    PubMed

    Liu, Pao-Hsin; Chang, Chih-Han; Chang, Hong-Po; Chang, Hsin-Fu

    2004-09-01

    The effects of chin cup therapy on the mandible in Class III malocclusions have been investigated extensively via cephalometric analyses. However, the actual sites of mandibular skeletal change are not detectable with conventional cephalometric analysis. It is important to elucidate the association between remodeling of the mandible with the mechanical stress applied with chin cup therapy. In this study, the geometric morphometric changes in the mandible from chin cup force and/or growth were investigated using strain tensor analysis. This geometric morphometric analysis reveals that mandibular deformation arises partly due to a size change and partly due to a shape change. The direction and magnitude of principal vectors of the strain tensors may provide more information about this deformation. Strain tensor analysis may show the degree of transformation within the mandibular geometric configuration due to treatment effects and/or growth changes as seen on lateral cephalometric radiographs.

  19. A systematic review on soft-to-hard tissue ratios in orthognathic surgery part II: Chin procedures.

    PubMed

    San Miguel Moragas, Joan; Oth, Olivier; Büttner, Michael; Mommaerts, Maurice Y

    2015-10-01

    Precise soft-to-hard tissue ratios in orthofacial chin procedures are not well established. The aim of this study was to determine useful soft-to-hard tissue ratios for planning the magnitude of sliding genioplasty (chin osteotomy), osseous chin recontouring and alloplastic chin augmentation. A systematic review of English and non-English articles using PubMed central, ProQuest Dissertations and Theses, Science Citation Index, Elsevier Science Direct Complete, Highwire Press, Springer Standard Collection, SAGE premier 2011, DOAJ Directory of Open Access Journals, Sweetswise, Free E-Journals, Ovid Lippincott Williams & Wilkins total Access Collection, Wiley Online Library Journals, and Cochrane Plus databases from their onset until July 2014. Additional studies were identified by searching the references. Search terms included soft tissue, ratios, genioplasty, mentoplasty, chin, genial AND advancement, augmentation, setback, retrusion, impaction, reduction, vertical deficit, widening, narrowing, and expansion. Study selection criteria were as follows: only academic publications; human patients; no reviews; systematic reviews or meta-analyses; no cadavers; no syndromic patients; no pathology at the chin or mandible region; only articles of level of evidence from I to IV; number of patients must be cited in the articles; hard-to-soft tissue ratios must be cited in the articles or at least are able to be calculated with the quantitative data available in the article; if all patients of one article have had bilateral sagittal split osteotomy (BSSO) performed along with chin osteotomy, there should be an independent group evaluation of the data concerning to the chin; and no restriction regarding the size of the group. Independent extraction of articles by two authors using predefined data fields, including study quality indicators (level of evidence). The search identified 22 articles. Eleven additional articles were found in their reference sections. Of these, two were

  20. Not by the Red on My Chinny Chin Chin: A Case of Mandibular Osteomyelitis in a 5-Year-Old Girl.

    PubMed

    Wallin, Dina; Kienstra, Andrew J

    2016-05-01

    Osteomyelitis is not an uncommon emergency department diagnosis in pediatric patients, and most cases are in the lower extremities. Children can present with acute, subacute, or chronic erythema, pain, swelling, or decreased use of the extremity; some patients will also have fever or elevated serum inflammatory markers, or both. We present the case of a healthy 5-year-old girl who presented to the emergency department with 3 weeks of painless chin swelling and 2 days of erythema and pain. While laboratory testing was normal, magnetic resonance imaging demonstrated osteomyelitis of the mandible, later confirmed by biopsy. After 4 weeks of intravenous antibiotics and an additional 2 weeks of oral antibiotics, the patient recovered completely without any residual findings. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: This case demonstrates that osteomyelitis can develop in previously healthy, fully vaccinated children with competent immune systems. Systemic findings (ie, fever and elevated serum inflammatory markers) may be absent, and osteomyelitis should always be considered in the differential diagnosis for a child presenting with subacute to chronic cutaneous findings without other clear explanation. Copyright © 2016 Elsevier Inc. All rights reserved.

  1. Simulation study comparing the helmet-chin PET with a cylindrical PET of the same number of detectors

    NASA Astrophysics Data System (ADS)

    Ahmed, Abdella M.; Tashima, Hideaki; Yoshida, Eiji; Nishikido, Fumihiko; Yamaya, Taiga

    2017-06-01

    There is a growing interest in developing brain PET scanners with high sensitivity and high spatial resolution for early diagnosis of neurodegenerative diseases and studies of brain functions. Sensitivity of the PET scanner can be improved by increasing the solid angle. However, conventional PET scanners are designed based on a cylindrical geometry, which may not be the most efficient design for brain imaging in terms of the balance between sensitivity and cost. We proposed a dedicated brain PET scanner based on a hemispheric shape detector and a chin detector (referred to as the helmet-chin PET), which is designed to maximize the solid angle by increasing the number of lines-of-response in the hemisphere. The parallax error, which PET scanners with a large solid angle tend to have, can be suppressed by the use of depth-of-interaction detectors. In this study, we carry out a realistic evaluation of the helmet-chin PET using Monte Carlo simulation based on the 4-layer GSO detector which consists of a 16  ×  16  ×  4 array of crystals with dimensions of 2.8  ×  2.8  ×  7.5 mm3. The purpose of this simulation is to show the gain in imaging performance of the helmet-chin PET compared with the cylindrical PET using the same number of detectors in each configuration. The sensitivity of the helmet-chin PET evaluated with a cylindrical phantom has a significant increase, especially at the top of the (field-of-view) FOV. The peak-NECR of the helmet-chin PET is 1.4 times higher compared to the cylindrical PET. The helmet-chin PET provides relatively low noise images throughout the FOV compared to the cylindrical PET which exhibits enhanced noise at the peripheral regions. The results show the helmet-chin PET can significantly improve the sensitivity and reduce the noise in the reconstructed images.

  2. Investigation of the optimal detector arrangement for the helmet-chin PET - A simulation study

    NASA Astrophysics Data System (ADS)

    Ahmed, Abdella M.; Tashima, Hideaki; Yoshida, Eiji; Yamaya, Taiga

    2017-06-01

    High sensitivity and high spatial resolution dedicated brain PET scanners are in high demand for early diagnosis of neurodegenerative diseases and studies of brain functions. To meet the demand, we have proposed the helmet-chin PET geometry which has a helmet detector and a chin detector. Our first prototype scanner used 54 4-layer depth-of-interaction (DOI) detectors. The helmet detector of the scanner had three detector rings with different radii arranged on a surface of a hemisphere (with a radius of 126.5 mm) and a top cover detector. Therefore, in this study, for our next development, we propose a spherical arrangement, in which the central axis of each detector points toward the center of the hemisphere, and we optimize the size of the detector crystal block to be arranged on the helmet detector. We simulate the spherical arrangement with the optimized crystal block size and compare its imaging performance with the multi-ring arrangement, which has a similar detector arrangement to that of our first prototype. We conduct Monte Carlo simulation to model the scanners having the 4-layer DOI detectors which consist of LYSO crystals. A dead space of 2 mm is assumed on each side of the crystal blocks such as for wrapping. The size of the crystal block is varied from 4×4 mm2 to 54×54 mm2 while fixing the thickness of the crystal block to 20 mm. We find that the crystal block sized at 42×42 mm2 has the highest sensitivity for a hemispherical phantom. The comparison of the two arrangements with the optimized crystal blocks show that, for the same number of crystal blocks, the spherical arrangement has 17% higher sensitivity for the hemispherical phantom than the multi-ring arrangement. We conclude that the helmet-chin PET with the spherical arrangement constructed from the crystal block sized at 42×42×20 mm3 has better imaging performance especially at the upper part of the brain compared to the multi-ring arrangement while keeping similar spatial resolution

  3. Reconstructive surgery with chin block graft and esthetic rehabilitation of missing anterior tooth

    PubMed Central

    Bansal, Preetika; Bansal, Pardeep

    2014-01-01

    The complete and predictable restoration of the periodontium following infection or trauma remains a critical objective in regenerative therapy. Bone grafts remain among the most widely used therapeutic strategies for the correction of periodontal osseous defects. For periodontally compromised anterior teeth, reconstruction of the ridge along with natural tooth pontic serves both the purpose of regeneration and esthetics. The right lower central incisor of a 28-year-old male that was periodontally compromised was extracted. Autogenous chin grafting followed by retrograde surgery of the extracted tooth and replacement by natural tooth pontic was done. After 6 months, there was significant improvement in clinical picture and bone fill. This procedure provided excellent regenerative and esthetic results for the periodontally compromised lost anterior tooth. PMID:24872642

  4. Province-based self-remediation efficiency of the Tha Chin river basin, Thailand.

    PubMed

    Thaipichitburapa, P; Meksumpun, C; Meksumpun, S

    2010-01-01

    The Tha Chin River Basin located in the great central basin of Thailand is used for water supply, aquaculture, transportation, and recreation as well as a sink for wastewater discharges. Because of gradual deterioration of water quality and fishery resources, this study aimed to explain recent status of the river self-remediation efficiency that was influenced by nutrient inputs and outputs from the river system. Field surveys were carried out during May 2007 (early rainy season) and October 2007 (late rainy season) within the Tha Chin River located in 4 provinces; Chainat, Suphan Buri, Nakhon Pathom, and Samut Sakhon. The nutrient budgets in each province section were analyzed. Results indicated that the river was in eutrophic condition all year round. High nitrogen and phosphorus loads from surrounding agricultural land use, agro-industry, and community continuously flew into the river system. Those nutrient concentrations were higher in the early rainy season than the late rainy season. The lowest river zone (in Samut Sakhon province) indicated highest dissolved inorganic nitrogen (DIN) and orthophosphate phosphorus (P) discharges of 145.54 and 36.14 tons/day, respectively. The highest remediation efficiency of the river (ca 60% of the total input) was found in the uppermost area of Suphan Buri province. The lowest remediation efficiency (ca 12%) was found in Samut Sakhon province. From the overall view, long term monitoring of river and estuarine DIN and P should be conducted. To make better condition of aquatic environment and fishery resource in each province-based section, the controls of DIN and P remediation efficiencies (e.g. by effective management of flow speed) at 20 and 50%, respectively, were recommended.

  5. Comparison of modified chin lift technique with EC technique for mask ventilation in adult apneic patients

    PubMed Central

    Rajappa, Geetha C.; Parate, Leena Harshad; Tejesh, C. A.; Prathima, P. T.

    2016-01-01

    Background: Mask ventilation (MV) is an essential basic life support skill. We used chin lift maneuver for MV and named as modified chin lift technique (MCL). EC technique is most common technique used for MV. Aims: The aim of this study is to compare the efficacy of both techniques for MV in term of expired tidal volume (TV). Secondarily, we also assessed the effect of experience on the performance of these both techniques. Settings and Design: The study area was operation theater of our hospital. This was a prospective, randomized, crossover study. Methods: A total 108 adults undergoing elective surgery under general anesthesia were recruited. In all patients, operators (novice/anesthesiologist) randomly performed both techniques either to start with EC or MCL technique. Expired TV was measured for one minute for each technique. Statistical Analysis: Paired t-test was used to compare TV. Results and Conclusion: The mean TV was significantly higher in MCL group than EC group (528.08 [104.96] ml vs. 483.39 [103] ml; P < 0.001). The novice (521.89 [117.9] ml vs. 478.70 [130.29] ml; P < 0.001) as well as anesthesiologists (534.27 [110.85] ml vs. 488.08 [111.6] ml; P < 0.001) was able to generate significantly more TV with MCL technique than EC technique. The TV did not differ significantly between novice and anesthesiologist for EC technique (P = 0.474) or MCL technique (P = 0.187). Novices as well as anesthesiologist felt MCL technique more satisfactory (70%). Clinical Trial Registration: CTRI/2016/04/006874. PMID:27746566

  6. Comparison of modified chin lift technique with EC technique for mask ventilation in adult apneic patients.

    PubMed

    Rajappa, Geetha C; Parate, Leena Harshad; Tejesh, C A; Prathima, P T

    2016-01-01

    Mask ventilation (MV) is an essential basic life support skill. We used chin lift maneuver for MV and named as modified chin lift technique (MCL). EC technique is most common technique used for MV. The aim of this study is to compare the efficacy of both techniques for MV in term of expired tidal volume (TV). Secondarily, we also assessed the effect of experience on the performance of these both techniques. The study area was operation theater of our hospital. This was a prospective, randomized, crossover study. A total 108 adults undergoing elective surgery under general anesthesia were recruited. In all patients, operators (novice/anesthesiologist) randomly performed both techniques either to start with EC or MCL technique. Expired TV was measured for one minute for each technique. Paired t-test was used to compare TV. The mean TV was significantly higher in MCL group than EC group (528.08 [104.96] ml vs. 483.39 [103] ml; P < 0.001). The novice (521.89 [117.9] ml vs. 478.70 [130.29] ml; P < 0.001) as well as anesthesiologists (534.27 [110.85] ml vs. 488.08 [111.6] ml; P < 0.001) was able to generate significantly more TV with MCL technique than EC technique. The TV did not differ significantly between novice and anesthesiologist for EC technique (P = 0.474) or MCL technique (P = 0.187). Novices as well as anesthesiologist felt MCL technique more satisfactory (70%). CTRI/2016/04/006874.

  7. 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.,…

  8. Why do humans have chins? Testing the mechanical significance of modern human symphyseal morphology with finite element analysis.

    PubMed

    Gröning, Flora; Liu, Jia; Fagan, Michael J; O'Higgins, Paul

    2011-04-01

    The modern human mandibular symphysis differs from those of all other primates in being vertically orientated and possessing a chin, but the functional significance of this unique morphology is not well understood. Some hypotheses propose that it is an adaptation to specific loads occurring during masticatory function. This study uses finite element analysis to examine these symphyseal loads in a model of a modern human mandible. By modifying the symphyseal cross-sectional form, the mechanical significance of the presence of the chin and symphyseal orientation is tested, and modern human and Neanderthal symphyseal cross-sections are compared with regard to their ability to withstand different loads. The results show that changes in symphyseal form have profound effects on the strains. The presence of a chin leads to lower symphyseal strains overall, whereas a vertical orientation of the symphysis results in higher strains under wishboning, but not under vertical bending in the coronal plane and dorsoventral shear. Compared to Neanderthals, the modern human symphysis shows higher strains during dorsoventral shear and wishboning, but is as effective as the Neanderthal symphysis in resisting vertical bending in the coronal plane and the loads resulting from simulated incision and unilateral molar biting. In general, the results of this study corroborate prior hypotheses about the mechanical effects of the human chin and vertical symphyseal orientation and support the idea that the relative importance of wishboning and vertical bending in the coronal plane might have played a role in the evolution of modern human symphyseal morphology.

  9. Effect on the contour of bone and soft tissue one year after harvesting chin bone for alveolar cleft repair.

    PubMed

    Dik, E A; de Ruiter, A P; van der Bilt, A; Koole, R

    2010-10-01

    In this study the authors evaluate and quantify the residual bony defect in the mandibular symphysis and its effect on the soft tissue contour a minimum of 1 year after harvesting chin bone. 59 ASA I cleft lip and palate patients, aged 8-19 years were included. In all patients an autologous bone graft from the mandibular symphysis was harvested for transplantation to the alveolar cleft. Lateral cephalograms were used to measure the donor site defects, and the effects on the soft tissue contour. An evident residual defect was measured at the donor site 1 year after harvesting chin bone. A significant relation was seen between age at time of surgery and size of the defect 1 year postoperatively. In older patients a larger defect remained. Using the current surgical technique of harvesting chin bone, complete bony repair of the defect was not achieved. This study shows postoperatively persisting defects that comprise on average 14% of the original peroperative defects. A significant increase in soft tissue thickness was seen at the mandibular symphysis at a minimum of 1 year postoperatively. These changes in the soft tissue chin contour 1 year after harvesting bone are similar to normal growth changes. Copyright © 2010 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  10. Functional connectivity patterns of normal human swallowing: difference among various viscosity swallows in normal and chin-tuck head positions.

    PubMed

    Jestrović, Iva; Coyle, James L; Perera, Subashan; Sejdić, Ervin

    2016-12-01

    Consuming thicker fluids and swallowing in the chin-tuck position has been shown to be advantageous for some patients with neurogenic dysphagia who aspirate due to various causes. The anatomical changes caused by these therapeutic techniques are well known, but it is unclear whether these changes alter the cerebral processing of swallow-related sensorimotor activity. We sought to investigate the effect of increased fluid viscosity and chin-down posture during swallowing on brain networks. 55 healthy adults performed water, nectar-thick, and honey thick liquid swallows in the neutral and chin-tuck positions while EEG signals were recorded. After pre-processing of the EEG timeseries, the time-frequency based synchrony measure was used for forming the brain networks to investigate whether there were differences among the brain networks between the swallowing of different fluid viscosities and swallowing in different head positions. We also investigated whether swallowing under various conditions exhibit small-world properties. Results showed that fluid viscosity affects the brain network in the Delta, Theta, Alpha, Beta, and Gamma frequency bands and that swallowing in the chin-tuck head position affects brain networks in the Alpha, Beta, and Gamma frequency bands. In addition, we showed that swallowing in all tested conditions exhibited small-world properties. Therefore, fluid viscosity and head positions should be considered in future swallowing EEG investigations. Copyright © 2016 Elsevier B.V. All rights reserved.

  11. 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…

  12. Do numerical rating scales and the Roland-Morris Disability Questionnaire capture changes that are meaningful to patients with persistent back pain?

    PubMed

    Hush, Julia M; Refshauge, Kathryn M; Sullivan, Gerard; De Souza, Lorraine; McAuley, James H

    2010-07-01

    To investigate patients' views about two common outcome measures used for back pain: Numerical Rating Scales for pain and the Roland-Morris Disability Questionnaire. Thirty-six working adults who had previously sought primary care for back pain and who could speak and read English. Eight focus groups were conducted to explore participants' views about the 11-point Numerical Rating Scales and the 24-item Roland-Morris Disability Questionnaire. Each group was led by a facilitator and an interview topic guide was used. Audio recordings of focus groups were transcribed verbatim. Framework analysis was used to chart participants' views and an interpretive analysis performed to explain the findings. Participants reported that neither the Roland-Morris nor the Numerical Rating Scales captured the complex personal experience of pain or relevant changes in their condition. The time-frame of assessment was identified as particularly problematic and the Roland-Morris did not capture relevant functional domains. This study provides empirical data that working adults with persistent back pain consider these clinical outcome measures largely inadequate. These measures currently used for back pain may contribute to misleading conclusions about treatment efficacy and patient recovery.

  13. 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…

  14. A comparison of single-handed chin lift and two-handed jaw thrust for tracheal intubation using a lightwand.

    PubMed

    Yang, Seong-Mi; Kim, Hyerim; Chang, Jee-Eun; Min, Seong-Won; Lee, Jung-Man; Hwang, Jin-Young

    2017-02-01

    In the present study, we evaluated the effects of single-handed chin lift and two-handed jaw thrust on lightwand-guided intubation and postoperative sore throat. Sixty adult patients were included in the study. After induction of anesthesia, intubation was performed using a lightwand under single-handed chin lift or two-handed jaw thrust. In the single-handed chin lift group, the lightwand was inserted with the right hand after the mandible was lifted by placing the thumb of the left hand into the mouth. In the two-handed jaw thrust group, the lightwand was inserted while jaw thrust was achieved by an assistant using two hands. Lightwand search time, number of intubation attempts, and time to achieve intubation were assessed. Heart rate and mean arterial pressure were measured before and after intubation. Postoperative sore throat was evaluated at 1 and 24 h after surgery. Lightwand search time was significantly shorter in the two-handed jaw thrust group compared to the single-handed chin lift group (7.2 ± 4.6 vs. 12.1 ± 9.1 s, respectively; p = 0.016). The two-handed jaw thrust group had shorter intubation time than the single-handed chin lift group (21.0 ± 6.6 vs. 27.9 ± 9.9 s, respectively; p = 0.004). The number of intubation attempts and hemodynamic changes during intubation were similar between the two groups. The incidence and severity of postoperative sore throat were lower at 24 h after surgery in the two-handed jaw thrust group compared with the single-handed chin lift group (p = 0.011). The two-handed jaw thrust facilitated lightwand-guided intubation, and reduced the incidence and severity of postoperative sore throat compared to the single-handed chin lift.

  15. 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.

  16. Grafts and implants in nasal and chin augmentation. A rational approach to material selection.

    PubMed

    Adams, J S

    1987-11-01

    considered. A good example is the nose. Its mobility and thin soft-tissue coverage lead to extrusion of firm implants such as Silastic. By contrast, Silastic works well for chin augmentation. Also, consider present or future bacterial contamination in the area. This is especially important in nasal augmentation, where infection and extrusion can lead to unacceptable deformities. In general, nasal augmentation is best achieved in most circumstances by cartilage. If this is unavailable, then Supramid has a proven record for good tissue compatibility and resistance to infection. For the chin, Silastic (either rubber- or gel-filled prostheses) produces the most pleasing and long-lasting results.

  17. Localized ridge augmentation with chin grafts and resorbable pins: case reports.

    PubMed

    Urbani, G; Lombardo, G; Santi, E; Tarnow, D

    1998-08-01

    Six block grafts harvested from the mandibular symphysis were used to augment partially atrophied ridges. Three maxillary defects and three mandibular defects were treated in five patients. Autologous bone grafts from the chin were stabilized in the recipient sites with resorbable pins and no membranes were used over the grafts. Healing proceeded without complications. At 3 to 4 months the external cortical surface of the grafts progressively resorbed and the profiles of the pins protruded from underneath the buccal tissue that covered the augmented areas. However, the pins never perforated the tissue and they were resorbed macroscopically within 4 to 6 months. At 6 months the areas treated showed successful ridge augmentation and when exposed for stage 2 surgery, remnants of the pin holes on the external surface of the repaired defects were detected. Radiographic evaluation of the block grafts was performed at 3 and 6 months and histologic specimens were obtained at 6 months; the specimens demonstrated incomplete pin resorption and encapsulation. A severe foreign-body reaction was detected in one case. The presence of an acellular bone matrix in certain sections and a normal bone pattern with a cellular component in others was a consistant finding. ITI endosseous Implants were placed with excellent primary stability in all treated cases.

  18. Prostate adenocarcinoma mandibular metastasis associated with numb chin syndrome: a case report

    PubMed Central

    2016-01-01

    The purpose of this study is to report a rare case of mandibular adenocarcinoma that was diagnosed due to metastasis from the prostate. Numb chin syndrome (NCS), which was associated with this case, is also discussed. Computed tomography (CT) and an intraoral incisional biopsy of the left mandibular area were performed. Urology consultation, hormone therapy, chemotherapy and follow-up radiographic images were administered. Histological examination of the incised specimen revealed moderately differentiated adenocarcinoma. The Gleason score was 8 (primary 4/secondary 4). Immunohistochemical features and radiographic results confirmed the diagnosis of metastasis from prostate adenocarcinoma, moderately differentiated. The patient's prostate-specific antigen (PSA) level was very high. After hormone treatment, the patient's PSA levels dropped gradually. Seventeen months later, in May 2015, the PSA level was elevated. The 18-month follow-up CT image indicated that the patient's condition was aggravated. Docetaxel chemotherapy was started in June 2015 (18 months later), and the sixth cycle of the therapy is in progress. Oral metastases that originate from prostate adenocarcinoma are rare and can induce various periosteal reactions. Hormone therapy, chemotherapy and close follow-up could be additional, appropriate treatment, and were applied in this case. Finally, NCS is a valuable indicator of metastatic disease in the mandible. PMID:27847740

  19. 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.

  20. Teaghrelins, unique acylated flavonoid tetraglycosides in Chin-shin oolong tea, are putative oral agonists of the ghrelin receptor.

    PubMed

    Lo, Yuan-Hao; Chen, Ying-Jie; Chang, Chi-I; Lin, Yi-Wen; Chen, Chung-Yu; Lee, Maw-Rong; Lee, Viola S Y; Tzen, Jason T C

    2014-06-04

    Chin-shin oolong tea, a popular tea in Taiwan, was empirically perceived to induce hunger and accelerate gastric emptying in a manner similar to the physiological effects of ghrelin, an endogenous acylated peptide known as the hunger hormone. Two unique acylated flavonoid tetraglycosides previously identified in Chin-shin oolong tea were demonstrated to induce hunger of rats in a food intake assay and, thus, named teaghrelin-1 and teaghrelin-2. Similar to GHRP-6, a synthetic analogue of ghrelin, teaghrelin-1 stimulated growth hormone secretion of rat primary anterior pituitary cells in a dose-dependent manner, and the stimulation was inhibited by [D-Arg(1),D-Phe(5),D-Trp(7,9),Leu(11)]-substance P, an antagonist of the ghrelin receptor. While teaghrelin-2 remained unmodified, a meta-O-methylated metabolite of teaghrelin-1 was detected in bile of rats after intravenous injection. Presumably, teaghrelins are promising oral agonists of the ghrelin receptor.

  1. The Genetics of Reading Disability in an Often Excluded Sample: Novel Loci Suggested for Reading Disability in Rolandic Epilepsy

    PubMed Central

    Strug, Lisa J.; Addis, Laura; Chiang, Theodore; Baskurt, Zeynep; Li, Weili; Clarke, Tara; Hardison, Huntley; Kugler, Steven L.; Mandelbaum, David E.; Novotny, Edward J.; Wolf, Steven M.; Pal, Deb K.

    2012-01-01

    Background Reading disability (RD) is a common neurodevelopmental disorder with genetic basis established in families segregating “pure” dyslexia. RD commonly occurs in neurodevelopmental disorders including Rolandic Epilepsy (RE), a complex genetic disorder. We performed genomewide linkage analysis of RD in RE families, testing the hypotheses that RD in RE families is genetically heterogenenous to pure dyslexia, and shares genetic influences with other sub-phenotypes of RE. Methods We initially performed genome-wide linkage analysis using 1000 STR markers in 38 US families ascertained through a RE proband; most of these families were multiplex for RD. We analyzed the data by two-point and multipoint parametric LOD score methods. We then confirmed the linkage evidence in a second US dataset of 20 RE families. We also resequenced the SEMA3C gene at the 7q21 linkage locus in members of one multiplex RE/RD pedigree and the DISC1 gene in affected pedigrees at the 1q42 locus. Results In the discovery dataset there was suggestive evidence of linkage for RD to chromosome 7q21 (two-point LOD score 3.05, multipoint LOD 3.08) and at 1q42 (two-point LOD 2.87, multipoint LOD 3.03). Much of the linkage evidence at 7q21 derived from families of French-Canadian origin, whereas the linkage evidence at 1q42 was well distributed across all the families. There was little evidence for linkage at known dyslexia loci. Combining the discovery and confirmation datasets increased the evidence at 1q42 (two-point LOD = 3.49, multipoint HLOD = 4.70), but decreased evidence at 7q21 (two-point LOD = 2.28, multipoint HLOD  = 1.81), possibly because the replication sample did not have French Canadian representation. Discussion Reading disability in rolandic epilepsy has a genetic basis and may be influenced by loci at 1q42 and, in some populations, at 7q21; there is little evidence of a role for known DYX loci discovered in “pure” dyslexia pedigrees. 1q42 and 7q21 are

  2. The genetics of reading disability in an often excluded sample: novel loci suggested for reading disability in Rolandic epilepsy.

    PubMed

    Strug, Lisa J; Addis, Laura; Chiang, Theodore; Baskurt, Zeynep; Li, Weili; Clarke, Tara; Hardison, Huntley; Kugler, Steven L; Mandelbaum, David E; Novotny, Edward J; Wolf, Steven M; Pal, Deb K

    2012-01-01

    Reading disability (RD) is a common neurodevelopmental disorder with genetic basis established in families segregating "pure" dyslexia. RD commonly occurs in neurodevelopmental disorders including Rolandic Epilepsy (RE), a complex genetic disorder. We performed genomewide linkage analysis of RD in RE families, testing the hypotheses that RD in RE families is genetically heterogenenous to pure dyslexia, and shares genetic influences with other sub-phenotypes of RE. We initially performed genome-wide linkage analysis using 1000 STR markers in 38 US families ascertained through a RE proband; most of these families were multiplex for RD. We analyzed the data by two-point and multipoint parametric LOD score methods. We then confirmed the linkage evidence in a second US dataset of 20 RE families. We also resequenced the SEMA3C gene at the 7q21 linkage locus in members of one multiplex RE/RD pedigree and the DISC1 gene in affected pedigrees at the 1q42 locus. In the discovery dataset there was suggestive evidence of linkage for RD to chromosome 7q21 (two-point LOD score 3.05, multipoint LOD 3.08) and at 1q42 (two-point LOD 2.87, multipoint LOD 3.03). Much of the linkage evidence at 7q21 derived from families of French-Canadian origin, whereas the linkage evidence at 1q42 was well distributed across all the families. There was little evidence for linkage at known dyslexia loci. Combining the discovery and confirmation datasets increased the evidence at 1q42 (two-point LOD = 3.49, multipoint HLOD = 4.70), but decreased evidence at 7q21 (two-point LOD = 2.28, multipoint HLOD  = 1.81), possibly because the replication sample did not have French Canadian representation. Reading disability in rolandic epilepsy has a genetic basis and may be influenced by loci at 1q42 and, in some populations, at 7q21; there is little evidence of a role for known DYX loci discovered in "pure" dyslexia pedigrees. 1q42 and 7q21 are candidate novel dyslexia loci.

  3. Assessment of the suitability of using a forehead EEG electrode set and chin EMG electrodes for sleep staging in polysomnography.

    PubMed

    Myllymaa, Sami; Muraja-Murro, Anu; Westeren-Punnonen, Susanna; Hukkanen, Taina; Lappalainen, Reijo; Mervaala, Esa; Töyräs, Juha; Sipilä, Kirsi; Myllymaa, Katja

    2016-12-01

    Recently, a number of portable devices designed for full polysomnography at home have appeared. However, current scalp electrodes used for electroencephalograms are not practical for patient self-application. The aim of this study was to evaluate the suitability of recently introduced forehead electroencephalogram electrode set and supplementary chin electromyogram electrodes for sleep staging. From 31 subjects (10 male, 21 female; age 31.3 ± 11.8 years), sleep was recorded simultaneously with a forehead electroencephalogram electrode set and with a standard polysomnography setup consisting of six recommended electroencephalogram channels, two electrooculogram channels and chin electromyogram. Thereafter, two experienced specialists scored each recording twice, based on either standard polysomnography or forehead recordings. Sleep variables recorded with the forehead electroencephalogram electrode set and separate chin electromyogram electrodes were highly consistent with those obtained with the standard polysomnography. There were no statistically significant differences in total sleep time, sleep efficiency or sleep latencies. However, compared with the standard polysomnography, there was a significant increase in the amount of stage N1 and N2, and a significant reduction in stage N3 and rapid eye movement sleep. Overall, epoch-by-epoch agreement between the methods was 79.5%. Inter-scorer agreement for the forehead electroencephalogram was only slightly lower than that for standard polysomnography (76.1% versus 83.2%). Forehead electroencephalogram electrode set as supplemented with chin electromyogram electrodes may serve as a reliable and simple solution for recording total sleep time, and may be adequate for measuring sleep architecture. Because this electrode concept is well suited for patient's self-application, it may offer a significant advancement in home polysomnography. © 2016 European Sleep Research Society.

  4. Health and human rights in Chin State, Western Burma: a population-based assessment using multistaged household cluster sampling.

    PubMed

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

    2011-02-08

    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. 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. 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.

  5. The patient-specific functional scale is more responsive than the Roland Morris disability questionnaire when activity limitation is low.

    PubMed

    Hall, Amanda M; Maher, Chris G; Latimer, Jane; Ferreira, Manuela L; Costa, Leonardo O P

    2011-01-01

    The primary objective of this study was to determine which questionnaire, the Roland Morris disability questionnaire (RMDQ) or the patient-specific functional scale (PSFS), was better at detecting change in activity limitation in a large cohort of patients with low back pain undergoing rehabilitation. A secondary aim was to determine if the responsiveness of the questionnaires was influenced by the patient's level of activity limitation at baseline. Responsiveness statistics, including effect size statistics, Pearson's r correlations and receiver operative characteristic (ROC) curve analysis were used to determine ability to detect change in activity limitation on 831 patients with low back pain. Data were analysed at two time points; directly after treatment (termed short-term) and several weeks post-treatment (termed mid-term). The data were subsequently re-analysed on sub-sets of the full cohort according to the level of activity limitation from RMDQ baseline scores. In the total cohort we found that the PSFS was more responsive than the RMDQ; however, in the subgroup with high activity limitation this pattern was not observed. This is true for time points up to 6 months post-treatment. In conclusion, the RMDQ and PSFS both demonstrate good responsiveness according to the definitions given in previous guidelines. The PSFS is more responsive than the RMDQ for patients with low levels of activity limitation but not for patients with high levels of activity limitation.

  6. A Roland Morris Disability Questionnaire Target Value to Distinguish between Functional and Dysfunctional States in People with Low Back Pain

    PubMed Central

    Riddle, Daniel L.

    2016-01-01

    Purpose: To estimate a threshold Roland Morris Disability Questionnaire (RMQ) value that could be used to classify patients with low back pain (LBP) as functional or dysfunctional. Methods: In this secondary analysis of data from a study that estimated clinically important RMQ change scores, participants were adults with LBP attending one of three physical therapy clinics. Diagnostic test methodology and a reference standard of goals met were applied to estimate a threshold RMQ value that best distinguished between participants with a functional status and those whose status was dysfunctional. Results: Of 143 participants, 104 (73%) met their goals. An RMQ threshold value of 4/24 best distinguished between those who met their goals and those who did not. Sensitivity and specificity for a threshold score of 4 were 94% (95% CI, 88–98) and 69% (95% CI, 52–83), respectively. Conclusions: A threshold value of 4 RMQ points provided a reasonably accurate classification of patients. Further research is necessary to cross-validate this estimate and to examine the stability of the estimated value in people with diverse functional demands. PMID:27504045

  7. 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.

  8. 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.

  9. Effect of frontal facial type and sex on preferred chin projection

    PubMed Central

    Choi, Jin-Young; Kim, Taeyun; Kim, Hyung-Mo; Lee, Sang-Hoon; Cho, Il-sik

    2017-01-01

    Objective To investigate the effects of frontal facial type (FFT) and sex on preferred chin projection (CP) in three-dimensional (3D) facial images. Methods Six 3D facial images were acquired using a 3D facial scanner (euryprosopic [Eury-FFT], mesoprosopic [Meso-FFT], and leptoprosopic [Lepto-FFT] for each sex). After normal CP in each 3D facial image was set to 10° of the facial profile angle (glabella–subnasale-pogonion), CPs were morphed by gradations of 2° from normal (moderately protrusive [6°], slightly protrusive [8°], slightly retrusive [12°], and moderately retrusive [14°]). Seventy-five dental students (48 men and 27 women) were asked to rate the CPs (6°, 8°, 10°, 12°, and 14°) from the most to least preferred in each 3D image. Statistical analyses included the Kolmogorov-Smirnov test, Kruskal-Wallis test, and Bonferroni correction. Results No significant difference was observed in the distribution of preferred CP in the same FFT between male and female evaluators. In Meso-FFT, the normal CP was the most preferred without any sex difference. However, in Eury-FFT, the slightly protrusive CP was favored in male 3D images, but the normal CP was preferred in female 3D images. In Lepto-FFT, the normal CP was favored in male 3D images, whereas the slightly retrusive CP was favored in female 3D images. The mean preferred CP angle differed significantly according to FFT (Eury-FFT: male, 8.7°, female, 9.9°; Meso-FFT: male, 9.8°, female, 10.7°; Lepto-FFT: male, 10.8°, female, 11.4°; p < 0.001). Conclusions Our findings might serve as guidelines for setting the preferred CP according to FFT and sex. PMID:28337420

  10. Single stage surgery for contouring the prominent mandibular angle with a broad chin deformity: en-bloc Mandibular Angle-Body-Chin Curved Ostectomy (MABCCO) and Outer Cortex Grinding (OCG).

    PubMed

    Zhang, Chao; Teng, Li; Chan, Fuan Chiang; Xu, Jia-Jie; Lu, Jian-Jian; Xie, Fang; Zhao, Jing-Yi; Xu, Mei-Bang; Jin, Xiao-Lei

    2014-10-01

    Various surgical options are reported to address the Asian 'squared face', characterized by a prominent mandibular angle (PMA) associated with an oversized chin deformity; but shortcomings lie in the requirement of multi-stage procedures with the risk of further revision surgery. We have developed a single-stage "Mandibular Angle-Body-Chin Curved Ostectomy (MABCCO) and Outer Cortex Grinding (OCG)" surgical technique to shorten the period of the surgical treatment and minimize the inherent surgical risks in the multi-staged procedures. A retrospective study involving patients (n = 36) presented with prominent mandibular angle and an oversized chin who underwent the operation described from 2010 to 2012 with at least 12 months of follow-up. The surgical and aesthetic outcomes were evaluated through clinical assessment, photography, imaging analysis including preoperative and post-operative patient satisfaction rates. All the patients were satisfied with the improvement in their appearance following surgery; specifically the 'smoothness' of the mandibular inferior border with no 'second mandibular angle'. The width of the mandible was reduced with G-G distance reduced from 119.9 mm ± 3.9-109.7 mm ± 3.5 (p < 0.05). A significant preoperative and post-operative gonial angle (G-A) was found at the left (110.7° ± 9.6 vs 139.9° ± 11.5, p < 0.05) and right side of mandible (111.3° ± 10.7 vs 140.7° ± 11.8, p < 0.05). There was no iatrogenic inferior alveolar nerve or mental nerve injury and a stable aesthetic outcome beyond the first year. We demonstrated favourable surgical and aesthetic outcomes with our single-stage en-bloc curved osteotomy surgical technique to reshape the prominent mandibular angle with a broad chin deformity with no increased in surgical risks but a high satisfaction rate and stable outcomes. Copyright © 2014 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

  11. Comparison of navigated transcranial magnetic stimulation and functional magnetic resonance imaging for preoperative mapping in rolandic tumor surgery.

    PubMed

    Coburger, Jan; Musahl, Christian; Henkes, Hans; Horvath-Rizea, Diana; Bittl, Markus; Weissbach, Claudia; Hopf, Nikolai

    2013-01-01

    Navigated transcranial magnetic stimulation (nTMS) is a novel tool for preoperative functional mapping. It detects eloquent cortical areas directly, comparable to intraoperative direct cortical stimulation (DCS). The aim of this study was to evaluate the advantage of nTMS in comparison with functional magnetic resonance imaging (fMRI) in the clinical setting. Special focus was placed on accuracy of motor cortex localization in patients with rolandic lesions. Thirty consecutive patients were enrolled in the study. All patients received an fMRI and nTMS examination preoperatively. Feasibility of the technique and spatial resolution of upper and lower extremity cortical mapping were compared with fMRI. Consistency of preoperative mapping with intraoperative DCS was assessed via the neuronavigation system. nTMS was feasible in all 30 patients. fMRI was impossible in 7 out of 30 patients with special clinical conditions, pediatric patients, central vascular lesions, or compliance issues. The mean accuracy to localize motor cortex of nTMS was higher than in fMRI. In the subgroup of intrinsic tumors, nTMS produced statistically significant higher accuracy scores of the lower extremity localization than fMRI. fMRI failed to localize hand or leg areas in 6 out of 23 cases. Using nTMS, a preoperative localization of the central sulcus was possible in all patients. Verification of nTMS motor cortex localization with DCS was achieved in all cases. The fMRI localization of the hand area proved to be postcentral in one case. nTMS has fewer restrictions for preoperative functional mapping than fMRI and requires only a limited level of compliance. nTMS scores higher on the accuracy scale than fMRI. nTMS represents a highly valuable supplement for the preoperative functional planning in the clinical routine.

  12. [Cognitive Development in Children with Benign Rolandic Epilepsy of Childhood with Centrotemporal Spikes - Results of a Current Systematic Database Search].

    PubMed

    Neumann, H; Helmke, F; Thiels, C; Polster, T; Selzer, L M; Daseking, M; Petermann, F; Lücke, T

    2016-10-01

    Benign Rolandic Epilepsy (BRE) is one of the most common epilepsy syndromes in childhood. Although global intellectual performance is typically normal in BRE-patients, problems were found in specific cognitive domains. To summarize recent empirical findings concerning cognitive development in children with BRE a systematic literature search of clinical studies published between 2009 and 2015 was performed. 19 studies of relevance were found.In most recent studies children with BRE consistently showed general intellectual performance within the normal range. However, in two of the studies patients showed a significantly poorer (but still normal) performance in comparison to controls. The studies provide clear indications for a high prevalence of impairments in language (10 out of 12 studies) and academic performance (6 out of 8 studies) in children with BRE. Regarding deficits in other cognitive domains (attention, memory, visual/auditory perception, executive functions) current findings are inconsistent. In addition, no clear results are found in studies examining cognitive development after remission of BRE. Studies on the relationship between selected clinical/electroencephalographic characteristics (e. g. EEG-patterns, focus lateralization) and cognitive performance and studies on potential benefits of anti-epileptic therapy for cognitive functions also have not yielded consistent results. Studies using fMRI and evoked potentials provide evidence for functional reorganization of neural networks in BRE.Due to the developmental risks in children with BRE early cognitive assessment, early treatment and follow-up assessments are important. © Georg Thieme Verlag KG Stuttgart · New York.

  13. 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

  14. Benefit from the Chin-Down Maneuver in the Swallowing Performance and Self-Perception of Parkinson's Disease Patients

    PubMed Central

    Jotz, Geraldo Pereira

    2017-01-01

    Aims. To verify the effectiveness of the maneuver application in swallowing therapy with PD. Materials and Method. We performed an open-label trial, with three groups compounds by PD individuals: the experimental group, control group, and orientation group. The study included PD patients with dysphagia. A cognitive screening, through a questionnaire about depression and quality of life, was conducted. Swallowing assessment was performed through (1) fiberoptic endoscopic evaluation of swallowing (FEES); (2) clinical evaluation and Functional Oral Intake Scale (FOIS); and (3) assessment of the quality life related to swallowing (SWALQOL). A therapeutic program, which consisted of chin-down postural maneuver and orientations on feeding, was applied. Both groups (EG and OG) received on-month therapeutic program. Results. A significant improvement in swallowing, evaluated by clinical assessment, was observed in solid (p < 0.001) and liquid (p = 0.022) consistencies in EG when compared to OG and CG. Patients in EG presented improvement in QoL, with the significant difference in comparison with the other groups, about domain frequency of symptoms (p = 0.029) in SWALQOL questionnaire. Conclusion. The postural maneuver chin-down improved swallowing performance and self-perception, but not the laryngeal signs. This trial is registered with registration number NCT02973698. PMID:28203475

  15. Chin tuck against resistance (CTAR): new method for enhancing suprahyoid muscle activity using a Shaker-type exercise.

    PubMed

    Yoon, Wai Lam; Khoo, Jason Kai Peng; Rickard Liow, Susan J

    2014-04-01

    For patients with dysphagia resulting from upper esophageal sphincter dysfunction, strengthening the suprahyoid muscles through therapeutic exercise has proved effective in restoring oral feeding. The aim of this study was to compare the maximum and mean surface electromyography (sEMG) activity of the suprahyoid muscles during the Chin Tuck Against Resistance (CTAR) exercise and the Shaker exercise for both isokinetic and isometric tasks. During the CTAR exercises, the participant is seated while tucking the chin to compress an inflatable rubber ball, whereas during the Shaker exercise, the participant is lay supine while lifting the head to look at the feet. Forty healthy participants (20 males, 20 females) aged 21-39 years completed all four tasks in counterbalanced order, with measures of resting activation taken prior to each exercise. Although subjective feedback suggested that the sitting position for CTAR is less strenuous than the supine position for Shaker, the results of separate analyses showed significantly greater maximum sEMG values during the CTAR isokinetic and isometric exercises than during the equivalent Shaker exercises, and significantly greater mean sEMG values were observed for the CTAR isometric exercise than for the Shaker isometric exercise. Clinical trials are now needed, but the CTAR exercises appear effective in exercising the suprahyoid muscles, and they could achieve therapeutic effects comparable to those of Shaker exercises, with the potential for greater compliance by patients.

  16. Molecular evolution of the human SRPX2 gene that causes brain disorders of the Rolandic and Sylvian speech areas

    PubMed Central

    Royer, Barbara; Soares, Dinesh C; Barlow, Paul N; Bontrop, Ronald E; Roll, Patrice; Robaglia-Schlupp, Andrée; Blancher, Antoine; Levasseur, Anthony; Cau, Pierre; Pontarotti, Pierre; Szepetowski, Pierre

    2007-01-01

    Background The X-linked SRPX2 gene encodes a Sushi Repeat-containing Protein of unknown function and is mutated in two disorders of the Rolandic/Sylvian speech areas. Since it is linked to defects in the functioning and the development of brain areas for speech production, SRPX2 may thus have participated in the adaptive organization of such brain regions. To address this issue, we have examined the recent molecular evolution of the SRPX2 gene. Results The complete coding region was sequenced in 24 human X chromosomes from worldwide populations and in six representative nonhuman primate species. One single, fixed amino acid change (R75K) has been specifically incorporated in human SRPX2 since the human-chimpanzee split. The R75K substitution occurred in the first sushi domain of SRPX2, only three amino acid residues away from a previously reported disease-causing mutation (Y72S). Three-dimensional structural modeling of the first sushi domain revealed that Y72 and K75 are both situated in the hypervariable loop that is usually implicated in protein-protein interactions. The side-chain of residue 75 is exposed, and is located within an unusual and SRPX-specific protruding extension to the hypervariable loop. The analysis of non-synonymous/synonymous substitution rate (Ka/Ks) ratio in primates was performed in order to test for positive selection during recent evolution. Using the branch models, the Ka/Ks ratio for the human branch was significantly different (p = 0.027) from that of the other branches. In contrast, the branch-site tests did not reach significance. Genetic analysis was also performed by sequencing 9,908 kilobases (kb) of intronic SRPX2 sequences. Despite low nucleotide diversity, neither the HKA (Hudson-Kreitman-Aguadé) test nor the Tajima's D test reached significance. Conclusion The R75K human-specific variation occurred in an important functional loop of the first sushi domain of SRPX2, indicating that this evolutionary mutation may have

  17. Reconstruction of the bony chin using sagittal split osteotomies of the remaining mandible - A new technique for a special indication: Case report.

    PubMed

    Hell, Berthold H

    2017-09-01

    There are several indications for resecting the bony chin, such as squamous cell carcinoma, sarcoma, or benign tumors of the jaw such as ameloblastoma. Several techniques for reconstruction of the bony chin, such as the use of metal plates and also revascularized free bone grafts of the iliac crest, fibula, or scapula, are common. In the case of poor vascular supply, however, alternative techniques may be necessary. In this report, a new technique is described using pedicled bone flaps from both sagittally split mandibular stumps following chin resection. These flaps were pedicled on the mylohyoid muscles and advanced to restore the continuity of the mandible. An advantage of this procedure was minimization of the soft tissue defect, making repair easier. Morbidity of the resection and reconstruction was thus reduced, and recovery of the patient was very quick. Copyright © 2017. Published by Elsevier Ltd.

  18. Ingestion of marine debris by the White-chinned Petrel (Procellaria aequinoctialis): Is it increasing over time off southern Brazil?

    PubMed

    Petry, Maria V; Benemann, Victória R F

    2017-04-15

    Seabirds are amongst the most affected organisms by plastic pollution worldwide. Ingestion of marine debris has been reported in at least 122 species, and owing to the increasing global production and persistence of these anthropogenic materials within the marine environment, it is expected to be a growing problem to the marine fauna. Here we report evidence of an increasing frequency in marine debris ingestion and a decrease in the amount of plastic pellets ingested by White-chinned Petrels attending south Brazilian waters during the last three decades. Future studies comprising large temporal scales and large sample sizes are needed to better understand the trends of marine debris ingestion by seabirds. We expect our findings to highlight the need for prevention policies and mitigation measures to reduce the amount of solid litter in the oceans. Copyright © 2017 Elsevier Ltd. All rights reserved.

  19. 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…

  20. Bilateral Numb Chin Syndrome as the Initial Presentation of Burkitt's Lymphoma/Leukemia: A Report of Two Cases and Review of the Literature.

    PubMed

    Algahtani, Hussein; Shirah, Bader; Bassuni, Wafaa; Adas, Reem

    2016-01-01

    Numb chin syndrome, also known as mental nerve neuropathy, is a rare sensory neuropathy characterized by paresthesia and hypoesthesia in the area supplied by the mental nerve and its branches. This syndrome may be the first symptom of underlying malignancy or the first sign of recurrence and metastasis in patients with preexisting cancer. In this article, we present two cases with bilateral numb chin syndrome as the first manifestation of Burkitt's lymphoma/leukemia and review the relevant literature. Numb chin syndrome should be considered as a warning sign and raise the suspicion for an underlying malignancy. Bilateral involvement is especially hazardous and must not be underestimated. In fact, an astute neurologist and internist who realizes that chin numbness is a potentially significant symptom can then exclude serious underlying malignancies. Standard diagnostic protocol with different modalities of imaging based on the availability and experience of the radiology team should be mandatory. High index of suspicion should be practiced to avoid delay in diagnosis and progression of the underlying malignancy.

  1. 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…

  2. Black-chinned hummingbird nest-site selection and nest survival in response to fuel reduction in a southwestern riparian forest

    Treesearch

    D. Max Smith; Deborah M. Finch; David L. Hawksworth

    2009-01-01

    Despite widespread efforts to avert wildfire by reducing the density of flammable vegetation, little is known about the effects of this practice on the reproductive biology of forest birds. We examined nest-site selection and nest survival of the Black-chinned Hummingbird (Archilochus alexandri) in New Mexico riparian forests treated or not for fuel...

  3. Bilateral Numb Chin Syndrome as the Initial Presentation of Burkitt's Lymphoma/Leukemia: A Report of Two Cases and Review of the Literature

    PubMed Central

    Bassuni, Wafaa; Adas, Reem

    2016-01-01

    Numb chin syndrome, also known as mental nerve neuropathy, is a rare sensory neuropathy characterized by paresthesia and hypoesthesia in the area supplied by the mental nerve and its branches. This syndrome may be the first symptom of underlying malignancy or the first sign of recurrence and metastasis in patients with preexisting cancer. In this article, we present two cases with bilateral numb chin syndrome as the first manifestation of Burkitt's lymphoma/leukemia and review the relevant literature. Numb chin syndrome should be considered as a warning sign and raise the suspicion for an underlying malignancy. Bilateral involvement is especially hazardous and must not be underestimated. In fact, an astute neurologist and internist who realizes that chin numbness is a potentially significant symptom can then exclude serious underlying malignancies. Standard diagnostic protocol with different modalities of imaging based on the availability and experience of the radiology team should be mandatory. High index of suspicion should be practiced to avoid delay in diagnosis and progression of the underlying malignancy. PMID:27882251

  4. Bone quality at the implant site after reconstruction of a local defect of the maxillary anterior ridge with chin bone or deproteinised cancellous bovine bone.

    PubMed

    Meijndert, L; Raghoebar, G M; Schüpbach, P; Meijer, H J A; Vissink, A

    2005-12-01

    The purpose of this study was to investigate the quality of bone at grafted implant sites in the anterior maxilla. Grafting of these sites was necessary because of insufficient bone volume in a buccopalatinal direction (width at the top of the crest 1-3mm). Reconstruction was performed with chin bone (N=5), chin bone and a resorbable Bio-Gide GBR membrane (N=5) or Bio-Oss spongiosa granules in combination with a Bio-Gide GBR membrane (N=5). Biopsies were taken prior to implantation, i.e. 3 months after grafting with chin bone, and 6 months after grafting with Bio-Oss. Evaluation was done by assessing the histological and histomorphometric characteristics of full-length biopsies taken from the actual implant site. Both areas with non-vital bone and areas with apposition of bone and remodelling phenomena were observed in the chin bone group at the time of placement of the implants. Similar results were observed at implant sites reconstructed with a chin bone graft covered by a membrane. In the chin bone group without and with a GBR membrane, the mean total bone volume (TBV) was 55.2+/-6.8% and 57.7+/-11.5%, respectively; the marrow connective tissue volume (MCTV) was 44.8+/-6.8% and 42.3+/-11.5%, respectively. Remnants of the resorbable GBR membrane were not detected. In the Bio-Oss((R)) group, at implant placement some newly formed bone was observed in the connective tissue surrounding the Bio-Oss((R)) particles (mean TBV (newly formed bone) 17.6+/-14.5%), but most particles were surrounded by connective tissue. No convincing signs of remodelling were observed (mean remaining Bio-Oss volume 40.5+/-9.3%; mean MCTV 41.9+/-13.1%). No implants were lost during follow up (12 months). At the time of placement of the implants the grafting material (either chin bone or Bio-Oss is still not fully replaced by new vital bone. In case of Bio-Oss, most of the grafting material is even still present. Despite these differences, the 1-year clinical results were very good and

  5. Letting the CAT out of the Bag: Comparing Computer Adaptive Tests and an Eleven-Item Short Form of the Roland-Morris Disability Questionnaire

    PubMed Central

    Cook, Karon F.; Choi, Seung W.; Crane, Paul K.; Deyo, Richard A.; Johnson, Kurt L.; Amtmann, Dagmar

    2009-01-01

    Study Design A post-hoc simulation of a computer adaptive administration of the items of a modified version of the Roland Morris Disability Questionnaire. Objective To evaluate the effectiveness of adaptive administration of back pain-related disability items compared to a fixed 11-item short form. Summary of Background Data Short form versions of the Roland Morris Disability Questionnaire have been developed. An alternative to paper-and -pencil short forms is to administer items adaptively so that items are presented based on a person’s responses to previous items. Theoretically, this allows precise estimation of back pain disability with administration of only a few items. Materials and Methods Data were gathered from two previously conducted studies of persons with back pain. An item response theory model was used to calibrate scores based on all items, items of a paper-and-pencil short form, and several computer adaptive tests (CATs). Results Correlations between each CAT condition and scores based on a 23-item version of the Roland Morris Disability Questionnaire ranged from 0.93 to 0.98. Compared to an 11-item short form, an 11-item CAT produced scores that were significantly more highly correlated with scores based on the 23-item scale. CATs with even fewer items also produced scores that were highly correlated with scores based on all items. For example, scores from a five-item CAT had a correlation of 0.93 with full scale scores. Seven- and nine-item CATs correlated at 0.95 and 0.97, respectively. A CAT with a standard-error-based stopping rule produced scores that correlated at 0.95 with full scale scores. Conclusions A CAT-based back pain-related disability measure may be a valuable tool for use in clinical and research contexts. Use of CAT for other common measures in back pain research, such as other functional scales or measures of psychological distress, may offer similar advantages. PMID:18496352

  6. Effect of combined mouth closure and chin lift on upper airway dimensions during routine magnetic resonance imaging in pediatric patients sedated with propofol.

    PubMed

    Reber, A; Wetzel, S G; Schnabel, K; Bongartz, G; Frei, F J

    1999-06-01

    In pediatric patients, obstruction of the upper airway is a common problem during general anesthesia. Chin lift is a commonly used technique to improve upper airway patency. However, little is known about the mechanism underlying this technique. The authors studied the effect of the chin lift maneuver on airway dimensions in 10 spontaneously breathing children (aged 2-11 yr) sedated with propofol during routine magnetic resonance imaging. The minimal anteroposterior and corresponding transverse diameters of the pharynx were determined at the levels of the soft palate, dorsum of the tongue, and tip of the epiglottis before and during the chin lift maneuver. Additionally, cross-sectional areas were calculated at these sites, including tracheal areas 2 cm below the glottic level. Minimal anteroposterior diameter of the pharynx increased significantly during chin lift at all three levels in all patients. The diameters of the soft palate, tongue, and epiglottis increased from 6.7+/-2.8 mm (SD) to 9.9+/-3.6 mm, from 9.6+/-3.6 mm to 16.5+/-3.1 mm, and from 4.6+/-2.5 mm to 13.1+/-2.8 mm, respectively. The corresponding transverse diameter of the pharynx also increased significantly at all three levels in all patients but without significant predominance. The diameters at the levels of the soft palate, tongue, and epiglottis increased from 15.8+/-5.1 mm to 22.8+/-4.5 mm, from 13.5+/-4.9 mm to 18.7+/-5.3 mm, and from 17.2+/-3.9 mm to 21.2+/-3.7 mm, respectively. Cross-sectional pharyngeal areas increased significantly at all levels (soft palate, from 0.88+/-0.58 cm2 to 1.79+/-0.82 cm2; tongue, from 1.15+/-0.45 cm2 to 2.99+/-1.30 cm2; epiglottis, from 1.17+/-0.70 cm2 to 3.04+/-0.99 cm2), including the subglottic level (from 0.44+/-0.15 cm2 to 0.50+/-0.14 cm2). This study shows that all children had a preserved upper airway at all measured sites during propofol sedation. Chin lift caused a widening of the entire pharyngeal airway that was most pronounced between the tip of the

  7. Clinical effectiveness of chin cup treatment for the management of Class III malocclusion in pre-pubertal patients: a systematic review and meta-analysis.

    PubMed

    Chatzoudi, Maria I; Ioannidou-Marathiotou, Ioulia; Papadopoulos, Moschos A

    2014-12-02

    Chin cup is regarded as the oldest orthodontic appliance for the management of Class III malocclusion. To assess its clinical effectiveness in pre-pubertal patients, a meta-analysis on specific cephalometric values is attempted. Detailed electronic and hand searches with no restrictions were performed up to July 2014. Only randomized controlled trials (RCTs) and cohort studies, i.e. prospective controlled trials (pCCTs) and (retrospective) observational studies (OS), were included. Analyses were performed by calculating the standard difference in means and the corresponding 95% confidence intervals, using the random effects model. Data heterogeneity and risk of bias assessment of the included studies were also performed. Study selection, data extraction and risk of bias assessment were performed twice. The level of significance was set at P ≤ 0.05 for all tests, except for heterogeneity (P ≤ 0.1). Seven treated groups from five studies (no RCTs, four pCCTs, one OS) were eligible for inclusion, assessing only the short-term occipital pull chin cup effects. In total, 120 treated patients (mean age: 8.5 to 11 years) compared with 64 untreated individuals (mean age: 7.3 to 9.89 years) were assessed by means of 13 cephalometric variables. The overall quality of these studies was low to medium. In comparison to untreated individuals, the SNB and gonial angles decreased significantly following chin cup use, whereas ANB, Wits appraisal, SN-ML, N-Me and overjet increased. For the rest of the variables, no statistically significant differences were detected. Although the occipital chin cup affects significantly a number of skeletal and dentoalveolar cephalometric variables, indicating an overall positive effect for the treatment of Class III malocclusion, data heterogeneity and between-studies variance impose precaution in the interpretation of the results.

  8. A Systematic Review of Head-to-Head Comparison Studies of the Roland-Morris and Oswestry Measures' Abilities to Assess Change.

    PubMed

    Newman, Anastasia N L; Stratford, Paul W; Letts, Lori; Spadoni, Gregory

    2013-01-01

    Objectif : Déterminer si la sensibilité au changement des résultats au questionnaire Roland-Morris (Roland-Morris Questionnaire, RMQ) et au questionnaire d'incapacité d'Oswestry (Oswestry Disability Index, ODI) diffèrent lorsqu'on les applique aux patients qui souffrent de lombalgie. Comme objectif secondaire, réaliser une analyse critique de la rigueur méthodologique des études comparatives directes sélectionnées. Méthode : Une revue systématique de cinq bases de données en ligne a été réalisée pour rechercher des études comparatives directes du RMQ et de l'ODI qui évaluaient la sensibilité au changement de ces deux mesures. Les études étaient retenues si elles satisfaisaient à un ensemble de critères d'inclusion préétabli. Un formulaire de critères de qualité nouvellement élaboré a été utilisé pour évaluer la rigueur méthodologique des études comparatives directes. Résultats : Neuf articles satisfaisaient aux critères d'inclusion. Bien que pour deux études, on ait constaté une différence statistique appréciable favorable au RQM, il n'y avait aucun avantage apparent commun pour une mesure plutôt que pour l'autre. Les lacunes méthodologiques fréquentes étaient notamment l'absence de calcul formel de la taille de l'échantillon, l'absence de critère pour la comparaison des mesures et le fait qu'il n'y avait aucune norme de référence indépendante. Conclusion : Il n'y a aucun élément probant commun permettant de privilégier une mesure plutôt qu'une autre. Plusieurs études comportaient des lacunes sur le plan méthodologique.

  9. Evaluation of the effectiveness of short-term rehabilitation of women with chronic low back pain using the Oswestry and Roland-Morris Disability Scales.

    PubMed

    Topolska, Marta; Sapuła, Rafał; Topolski, Adam; Marczewski, Krzysztof

    2011-01-01

    60-80% of the population experience chronic low back pain at some point in their lives [1], with women suffering more frequently [2]. Low back pain-related ailments lead to long-term or recurrent disability [3, 4]. Rehabilitation based on physiotherapy provides a viable alternative and is rightly regarded as safer for patients. However, finding an effective method of rehabilitation is a difficult task [5, 6]. The aim of this study was to compare the outcomes of rehabilitation in women with chronic low back pain using the Oswestry and Roland-Morris Disability Scales and to identify factors influencing the degree of functional disability in patients with chronic low back pain. The study involved 319 women aged 18-75 years (mean age = 45 years, SD ± 16. 3). The participants were undergoing treatment at the Rehabilitation Centre of Zamość University of Management and Administration on account of chronic low back pain, following two or more episodes lasting longer than three months. The outcomes of rehabilitation were assessed with ODI and RMDQ. We obtained comparable results with the ODI and RMDQ and found statistically significant improvement in functional status after rehabilitation (ODI: p <0.001, RMDQ: p <0.001). In both cases there was a statistically significant relationship between the degree of functional disability and age (ODI: p <0.001, RMDQ: p <0.001), education (ODI: p <0.004, RMDQ: p <0.004), BMI (ODI: p <0.001, RMDQ : p <0.001), WHR (ODI: p <0.001, RMDQ: p <0.001), and hypertension (ODI: p <0.001, RMDQ: p <0.001). There were no statically significant differences between the degree of disability vs. place of residence (ODI: p <0.5, RMDQ: p <0.867) or the presence of type 2 diabetes (ODI: p <0.321, RMDQ: p <0.06). 1.The programme for rehabilitation of patients with low back pain proved effective in reducing the degree of disability, as demonstrated both by the Oswestry Disability Index and the Roland-Morris Disability Questionnaire. 2. The relationship

  10. 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

  11. 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

  12. Comparative analysis of reproductive traits in black-chinned tilapia females from various coastal marine, estuarine and freshwater ecosystems.

    PubMed

    Guèye, Moussa; Tine, Mbaye; 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. 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.

  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. Effects of chin tuck against resistance exercise versus Shaker exercise on dysphagia and psychological state after cerebral infarction.

    PubMed

    Gao, Jing; Zhang, Hui-Jun

    2017-06-01

    The incidence of stroke is high in China. The dysphagia caused by cerebral infarction (CI), seriously affects patients' life quality, and even endangers patients' lives. It is necessary to explore how to improve dysphagia caused by CI. To compare the effects of rehabilitation training on dysphagia and psychological state after CI between Shaker exercise and chin tuck against resistance (CTAR) exercise. Control study. Blind. Inpatients. A total of 90 patients with dysphagia after CI were divided into CTAR group, Shaker group and control group by random digit table (each group with 30 patients). Video fluoroscopic swallowing study (VFSS) and Self-Rating Depression Scale (SDS) were performed on all patients before intervention. VFSS was evaluated based on Penetration-Aspiration Scale. All patients received routine treatments including internal medicine, traditional rehabilitation training and routine nursing. The patients in control group only receive the routine treatments. Besides the routine treatments, the patients in CTAR group also received CTAR exercise, and the patients in Shaker group also received Shaker exercise. VFSS was performed again on all patients, respectively, 2, 4, and 6 weeks after exercise. SDS was performed again on all patients 6 weeks after exercise. There were no statistical differences amongst the three groups in VFSS and SDS before intervention (P>0.05). After intervention, all patients had various degrees of improvement for dysphagia in the three groups, especially between 2 and 4 weeks in CTAR and Shaker groups. The total effective rate was significantly higher in CTAR group (86.67%) and Shaker group (76.67%) than in control group (43.33%) (all P<0.05). The scores of SDS was significantly lower in CTAR group than in Shaker group and control group 6 weeks after intervention (all P<0.05). For the patients with dysphagia after CI, CTAR exercise can significantly relieve depression and has the similar effect on improving swallowing function

  16. Comparison between an automatic and a visual scoring method of the chin muscle tone during rapid eye movement sleep.

    PubMed

    Ferri, Raffaele; Gagnon, Jean-François; Postuma, Ronald B; Rundo, Francesco; Montplaisir, Jacques Y

    2014-06-01

    To compare two different methods, one visual and the other automatic, for the quantification of rapid eye movement (REM) sleep without atonia (RSWA) in the diagnosis of REM sleep behavior disorder (RBD). Seventy-four RBD patients (mean age, 62.14±9.67 years) and 75 normal controls (mean age, 61.04±12.13 years) underwent one night video-polysomnographic recording. The chin electromyogram (EMG) during REM sleep was analyzed by means of a previously published visual method quantifying the percentage of 30s epochs scored as tonic (abnormal, > or =30%) and that of 2s mini-epochs containing phasic EMG events (abnormal, > or =15%). For the computer quantitative analysis we used the automatic scoring algorithm known as the atonia index (abnormal, <0.8). The percentage correct classification, sensitivity, specificity, and Cohen kappa were calculated. The atonia index correctly classified 82.6% of subjects, similar to the percentage of correct classifications with individual components of the visual analysis (83.2% each for tonic and phasic), and the combined visual parameters (85.9%). The sensitivity and specificity of automatic analysis (84% and 81%) was similar to the combined visual analysis (89% and 83%). The correlation coefficient between the automatic atonia index and the percentage of visual tonic EMG was high (r = -0.886, P<0.00001), with moderately high correlation with the percentage of phasic EMG (r = -0.690, P<0.00001). The agreement between atonia index and the visual parameters (individual or combined) was approximately 85% with Cohen's kappa, ranging from 0.638 to 0.693. Sensitivity, specificity, and correct classifications were high with both methods. Moreover, there was general agreement between methods, with Cohen's kappa values in the 'good' range. Given the considerable practical advantages of automatic quantification of REM atonia, automatic quantification may be a useful alternative to visual scoring methods in otherwise uncomplicated polysomnograms

  17. Size and placement of developing anterior teeth in immature Neanderthal mandibles from Dederiyeh Cave, Syria: implications for emergence of the modern human chin.

    PubMed

    Fukase, Hitoshi; Kondo, Osamu; Ishida, Hajime

    2015-03-01

    Evolutionary and functional significance of the human chin has long been explored from various perspectives including masticatory biomechanics, speech, and anterior tooth size. Recent ontogenetic studies have indicated that the spatial position of internally forming anterior teeth partially constrains adult mandibular symphyseal morphology. The present study therefore preliminarily examined the size and placement of developing anterior teeth in immature Neanderthal mandibles of Dederiyeh 1 and 2, compared with similarly-aged modern humans (N = 16) and chimpanzees (N = 7) whose incisors are comparatively small and large among extant hominids, respectively. The Dederiyeh 1 mandible is described as slightly presenting a mental trigone and attendant mental fossa, whereas Dederiyeh 2 completely lacks such chin-associated configurations. Results showed that, despite symphyseal size being within the modern human range, both Dederiyeh mandibles accommodated overall larger anterior dentition and displayed a remarkably wide bicanine space compared to those of modern humans. Dederiyeh 2 had comparatively thicker deciduous incisor roots and more enlarged permanent incisor crypts than Dederiyeh 1, but both Dederiyeh individuals exhibited a total dental size mostly intermediate between modern humans and chimpanzees. These findings potentially imply that the large deciduous/permanent incisors collectively distended the labial alveolar bone, obscuring an incipient mental trigone. It is therefore hypothesized that the appearance of chin-associated features, particularly of the mental trigone and fossa, can be accounted for partly by developmental relationships between the sizes of the available mandibular space and anterior teeth. This hypothesis must be, however, further addressed with more referential samples in future studies. © 2014 Wiley Periodicals, Inc.

  18. 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.

  19. 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

  20. A case of mimicking angioedema: chin silicone granulomatous reaction spreading all over the face after receiving liquid silicone injection forty years previously.

    PubMed

    Chen, Yu-Cheng; Chen, Mei-Ling; Chiu, Ying-Ming

    2011-06-01

    Liquid injectable silicone has been used for soft tissue augmentation for five decades. Many complications following liquid silicone injection have been reported. To diagnose and manage silicone granuloma remains difficult. Silicone granuloma must be diagnosed with the history of liquid silicone injection and the histology of tissue biopsy. We presented a case of granulomatous reaction after the injection of liquid silicone for chin augmentation forty years ago, causing total facial swelling, which mimicking angioedema initially. We administered methylprednisolone to the patient. Initial response to methylprednisolone was favorable.

  1. The Oswestry Disability Index, the Roland-Morris Disability Questionnaire, and the Quebec Back Pain Disability Scale: translation and validation studies of the Iranian versions.

    PubMed

    Mousavi, Sayed Javad; Parnianpour, Mohamad; Mehdian, Hossein; Montazeri, Ali; Mobini, Bahram

    2006-06-15

    Cross-cultural translation and psychometric testing were performed. To cross-culturally translate the Oswestry Disability Index (ODI), Roland-Morris Disability Questionnaire (RDQ), and Quebec Back Pain Disability Scale (QDS) into Persian, and then investigate the psychometric properties of the Persian versions produced. To the authors' knowledge, there is no validated instrument to measure functional status in Persian-speaking patients with low back pain (LBP) in Iran. To our knowledge, the widely used back-specific measures, the ODI, RDQ, and QDS, have not been translated and validated for Persian-speaking patients with LBP. The translation and cross-cultural adaptation of the original questionnaires were performed in accordance with published guidelines. A total of 100 patients with chronic LBP were asked to complete a questionnaire booklet (the Persian versions of the ODI, RDQ, QDS, Short Form Health Survey (SF-36), and visual analog scale measure of pain). There were 31 randomly select patients with chronic LBP asked to complete the second questionnaire booklet 24 hours later. The Cronbach-alpha for the ODI, RDQ, and QDS was 0.75, 0.83, and 0.92, respectively. The ODI, RDQ, and QDS showed excellent test-retest reliability (intraclass correlation coefficient = 0.91, 0.86, and 0.86, respectively) (P < 0.01). The correlation among the ODI, RDQ, QDS and physical functioning scales of the SF-36 was -0.66, -0.62, and -0.69, respectively (P < 0.001). The correlation among the ODI, RDQ, and QDS and visual analog scale was 0.54, 0.36, and 0.46, respectively (P < 0.001). The Persian versions of the ODI, RDQ, and QDS are reliable and valid instruments to measure functional status in Persian-speaking patients with LBP. They are simple and fast scales, and the use of them can be recommended in a clinical setting and future outcome studies in Iran.

  2. 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.

  3. Characterization and determination of lipophilic hydrocarbons in the Chao Phraya, Bang Pakong and Tha-Chin rivers and the Upper Gulf of Thailand.

    PubMed

    Onodera, S; Chatkittikunrong, W; Saito, K; Phongbetchara, R; Tabucanon, M

    1987-04-17

    Carbon tetrachloride extracts of water samples collected from the Chao Phraya, Bang Pakong and Tha-Chin rivers and the Upper Gulf of Thailand in the rainy season (1983) and dry season (1984) were studied in order to characterize and determine the lipophilic hydrocarbons. The major lipophilic organic compounds present were n-alkanes (C17-C33), dibutyl phthalate and di(2-ethylhexyl) phthalate. However, polyaromatic hydrocarbons were hardly detectable level (0.1 microgram/l by high-performance liquid chromatography). The concentrations of these lipophilic hydrocarbons were correlated with the effective rainfall content of the river. These data suggest a multiplicity of sources ranging from indigenous biological materials to petroleum activities.

  4. Multiparametric approach for assessing environmental quality variations in West African aquatic ecosystems using the black-chinned tilapia (Sarotherodon melanotheron) as a sentinel species.

    PubMed

    Ndiaye, Awa; Sanchez, Wilfried; Durand, Jean-Dominique; Budzinski, Hélène; Palluel, Olivier; Diouf, Khady; Ndiaye, Papa; Panfili, Jacques

    2012-11-01

    The study highlights the potential of the black-chinned tilapia to be used as a sentinel to assess environmental contaminants based on the use of a set of biomarkers. The usefulness of fish species as sentinels for assessing aquatic environment contamination was tested using a set of biomarkers in Senegalese environments characterized by multi-pollution sources. The black-chinned tilapia (Sarotherodon melanotheron) was selected as a sentinel because of its abundance, wide distribution in all coastal aquatic ecosystems and physiological properties. The potential influence of confounding factors such as salinity on biomarker in the tilapia has been examined. Individuals were sampled during two seasons (dry and wet) in eight sites characterized by various degrees of anthropogenic contamination and different salinities (from 0 to 102 psu). Biomarkers-including growth rate (GR), condition factor (CF), biotransformation enzymes such as 7-ethoxyresorufin-O-deethylase (EROD) and glutathione-S-transferase (GST), lipid peroxidation (TBARS) and acetylcholinesterase (AChE)-were measured. Chemical contaminant [polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs)] levels showed different sources of contamination with relatively high concentrations of PAHs in the Hann Bay and Foundiougne locations. The most sensitive biomarker present in different sites according to the principal component analysis is EROD. Few variations of the AChE activity and TBARS levels were found. No clear relationship was found between biomarker responses and salinity, but GR and CF were lower in hypersaline conditions. Tilapia is responsive to environmental contaminants such as PAHs, OCPs and PCBs. The S. melanotheron multiparametric approach showed a better discrimination of sites.

  5. Surgical treatment of "chin-on-pubis" deformity in a patient with ankylosing spondylitis: a case report of consecutive cervical, thoracic, and lumbar corrective osteotomies.

    PubMed

    Kim, Ki-Tack; Lee, Sang-Hun; Son, Eun-Seok; Kwack, Yoon-Ho; Chun, Young-Soo; Lee, Jae-Hoon

    2012-07-15

    A case report. To report the successful consecutive spinal osteotomies of multiple segments performed on a patient with extremely severe kyphotic deformity. There have been no reports on the experience and surgical strategy of spinal osteotomy on multiple segments for severe global spine deformity. A 48-year-old man, a patient with ankylosing spondylitis with "chin-on-pubis" deformity, underwent consecutive spinal osteotomies to correct the severe, fixed global kyphosis. The axial skeletons from the skull, all vertebrae, and both sacroiliac joints and hip joint were fused into a single bone. After both hip resectional arthroplasties for the first step, staged, sequential spinal osteotomies, including pedicle subtraction osteotomy (PSO) on C6, posterior vertebral column resection on T11-T12, and PSO on L3, were performed. Finally, both total hip arthoroplasties were performed. The chin-brow vertical angle improved from 140° to 15°. Correction angles of 45°, 70°, and 30° in the cervical, thoracic, and lumbar spines, respectively, were achieved without complication. At the last follow-up, excellent improvement in activities of daily living and horizontal gaze were achieved. This is the first report on C6 PSO and spinal osteotomies in whole spine segments. For patients with a severe global kyphotic deformity, it is important to place the patient in a stable prone position so that corrective surgery can be performed on the thoracolumbar spine. To accomplish this, initially correcting the deformities in the hip joints and the cervical spine can yield excellent clinical results.

  6. Nest-location and nest-survival of black-chinned hummingbirds in New Mexico: A comparison between rivers with differing levels of regulation and invasion of nonnative plants

    Treesearch

    D. Max Smith; Deborah M. Finch; Scott H. Stoleson

    2014-01-01

    We compared plants used as sites for nests and survival of nests of black-chinned hummingbirds (Archilochus alexandri) along two rivers in New Mexico. Along the free-flowing Gila River which was dominated by native plants, most nests were constructed in boxelder (Acer negundo). Along the flow-restricted Middle Rio Grande which was dominated by nonnative plants, most...

  7. 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

  8. 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. Copyright © 2013 Elsevier Ltd. All rights reserved.

  9. PAR-2, LGL-1 and the CDC-42 GAP CHIN-1 act in distinct pathways to maintain polarity in the C. elegans embryo.

    PubMed

    Beatty, Alexander; Morton, Diane G; Kemphues, Kenneth

    2013-05-01

    In the one-cell C. elegans embryo, polarity is maintained by mutual antagonism between the anterior cortical proteins PAR-3, PKC-3, PAR-6 and CDC-42, and the posterior cortical proteins PAR-2 and LGL-1 on the posterior cortex. The mechanisms by which these proteins interact to maintain polarity are incompletely understood. In this study, we investigate the interplay among PAR-2, LGL-1, myosin, the anterior PAR proteins and CDC-42. We find that PAR-2 and LGL-1 affect cortical myosin accumulation by different mechanisms. LGL-1 does not directly antagonize the accumulation of cortical myosin and instead plays a role in regulating PAR-6 levels. By contrast, PAR-2 likely has separate roles in regulating cortical myosin accumulation and preventing the expansion of the anterior cortical domain. We also provide evidence that asymmetry of active CDC-42 can be maintained independently of LGL-1 and PAR-2 by a redundant pathway that includes the CDC-42 GAP CHIN-1. Finally, we show that, in addition to its primary role in regulating the size of the anterior cortical domain via its binding to PAR-6, CDC-42 has a secondary role in regulating cortical myosin that is not dependent on PAR-6.

  10. Phylogeographic patterns in populations of the black-chinned tilapia complex (Teleostei, Cichlidae) from coastal areas in West Africa: support for the refuge zone theory.

    PubMed

    Falk, Thomas M; Teugels, Guy G; Abban, Eddie K; Villwock, Wolfgang; Renwrantz, Lothar

    2003-04-01

    Within the tilapiines, a major African cichlid lineage, quite limited genetic informations are available on phylogenetic interrelationships and phylogeographical patterns at both macro- and micro-evolutionary scales. The present study examines the genetic diversity of the black-chinned tilapia complex from coastal areas in West Africa (Senegal to Congo-Brazzaville) based on mtDNA control region sequences. Phylogenetic inferences provide support for the monophyly of both taxa involved. It is suggested that Sarotherodon melanotheron and Sarotherodon nigripinnis have diverged probably since the early Pleistocene. The occurrence of the main intraspecific lineages could be dated back to about 500,000-900,000 years. Our data suggest that West African Pleistocene refuge zones may have strongly influenced the degree and level of genetic differentiation among populations and thus the observed phylogeographic patterns. The spatial distribution of mtDNA lineages and the centres of intrapopulational genetic diversity clearly correspond to proposed lowland refuge zones and core areas of Central Africa. Moreover, this study genetically supports the existence of Sarotherodon melanotheron leonensis for the first time and further confirms the validity of the most recently introduced subspecies, e.g., Sarotherodon nigripinnis dolloi. Copyright 2002 Elsevier Science (USA)

  11. Plasticity of gene expression according to salinity in the testis of broodstock and F1 black-chinned tilapia, Sarotherodon melanotheron heudelotii

    PubMed Central

    Guinand, Bruno; Dugué, Rémi; Cosson, Jacky; Legendre, Marc; Panfili, Jacques; Durand, Jean-Dominique

    2014-01-01

    The black-chinned tilapia Sarotherodon melanotheron heudelotii Rüppell 1852 (Teleostei, Cichlidae) displays remarkable acclimation capacities. When exposed to drastic changes of salinity, which can be the case in its natural habitat, it develops quick physiological responses and keeps reproducing. The present study focused on the physiological impact of salinity on male reproductive capacities, using gene expression as a proxy of acclimation process. Two series of experimental fish were investigated: the first one was composed of fish maintained in freshwater for several generations and newly acclimated to salinities of 35 and 70, whereas the second one consisted of the descendants of the latter born and were raised under their native salinity. Expression patterns of 43 candidate genes previously identified from the testes of wild males was investigated in the three salinities and two generations. Twenty of them showed significant expression differences between salinities, and their predicted function revealed that most of them are involved in the osmotic tolerance of sperm cells and/or in the maintenance of sperm motility. A high level of expression variation was evidenced, especially for fish maintained in freshwater. In spite of this, gene expression patterns allowed the differentiation between fish raised in freshwater and those maintained in hypersaline water in both generations. Altogether, the results presented here suggest that this high variability of expression is likely to ensure the reproductive success of this species under varying salinities. PMID:25548735

  12. 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

  13. Impacts of nutrients and related environmental factors on distribution and size structure of Noctiluca scintillans populations of the eutrophic Tha Chin estuary, Thailand.

    PubMed

    Chuenniyom, Wansiri; Meksumpun, Charumas; Meksumpun, Shettapong

    2012-01-01

    This study aimed to analyze the impacts of nutrients and related aquatic factors on changes in the Noctiluca population of the Tha Chin estuary, a nutrient-rich estuary located in the inner Gulf of Thailand. Field surveys were carried out at 30 stations during November 2009 to August 2010. The results indicated high levels of dissolved inorganic nitrogen (DIN; 13.89-46.99 μmol/L) and PO(4)(3-)-P (0.20-3.05 μmol/L) where the Noctiluca red tide occurred, particularly during the high-loading period. Dense populations were usually found in the outer part of the estuary with comparatively high salinity (25-29 psu). The highest Noctiluca density was 72,333 cells L(-1) and the cell diameters ranged between 360 and 460 μm. Proportions of small-sized cells (P(s); less than 300 μm) varied over time. In this study, P(s) showed a positive correlation with levels of PO(4)(3-)-P, while the total population density was significantly affected by levels of NH(4)(+)-N and DIN (p < 0.05). Overall, PO(4)(3-)-P influenced the development of the Noctiluca red tide, with the limitation of PO(4)(3-)-P levels to below 1 μmol/L suggested for controlling Noctiluca red tide outbreaks at their origin. To support environmental conservation and maintain sustainable production in the estuary, the levels of PO(4)(3-)-P should be considered for the further effective development of water quality standards in estuarine zones.

  14. Vertical Ridge Augmentation of the Atrophic Posterior Mandible with Sandwich Technique: Bone Block from the Chin Area versus Corticocancellous Bone Block Allograft—Clinical and Histological Prospective Randomized Controlled Study

    PubMed Central

    Laino, Luigi; Piattelli, Adriano; Lo Muzio, Lorenzo

    2014-01-01

    The aim of the present study is to compare the histological aspects of bone formation in atrophic posterior mandibles augmented by autologous bone block from chin area with corticocancellous bone block allograft used as inlays with the sandwich technique. Materials and Methods. Sixteen patients with bilateral partial edentulism in the posterior mandible were selected. The residual bone height, preliminarily measured by computed tomography scans, ranged between 5 and 7 mm from the inferior alveolar nerve. All patients required regeneration procedure with autologous bone block from chin area (control group) versus bone block allograft Puros (Zimmer Dental, 1900 Aston Avenue, Carlsbad, CA, USA) (test group). Histological and histomorphometric samples were collected at the time of implant positioning in order to analyze the percentage of newly formed bone, the residual graft material, and marrow spaces/soft tissue. Results. No statistically significant differences between the two groups were found regarding the percentage of newly formed bone. The percentage of residual grafted material was significantly higher in the test group, whilst the percentage of marrow spaces was higher in control group. Conclusions. In conclusion, both procedures supported good results, although the use of bone blocks allograft was less invasive and preferable than harvesting bone from the mental symphysis. PMID:24877155

  15. Vertical ridge augmentation of the atrophic posterior mandible with sandwich technique: bone block from the chin area versus corticocancellous bone block allograft--clinical and histological prospective randomized controlled study.

    PubMed

    Laino, Luigi; Iezzi, Giovanna; Piattelli, Adriano; Lo Muzio, Lorenzo; Cicciù, Marco

    2014-01-01

    The aim of the present study is to compare the histological aspects of bone formation in atrophic posterior mandibles augmented by autologous bone block from chin area with corticocancellous bone block allograft used as inlays with the sandwich technique. Sixteen patients with bilateral partial edentulism in the posterior mandible were selected. The residual bone height, preliminarily measured by computed tomography scans, ranged between 5 and 7 mm from the inferior alveolar nerve. All patients required regeneration procedure with autologous bone block from chin area (control group) versus bone block allograft Puros (Zimmer Dental, 1900 Aston Avenue, Carlsbad, CA, USA) (test group). Histological and histomorphometric samples were collected at the time of implant positioning in order to analyze the percentage of newly formed bone, the residual graft material, and marrow spaces/soft tissue. No statistically significant differences between the two groups were found regarding the percentage of newly formed bone. The percentage of residual grafted material was significantly higher in the test group, whilst the percentage of marrow spaces was higher in control group. In conclusion, both procedures supported good results, although the use of bone blocks allograft was less invasive and preferable than harvesting bone from the mental symphysis.

  16. Item response theory analysis to evaluate reliability and minimal clinically important change of the Roland-Morris Disability Questionnaire in patients with severe disability due to back pain from vertebral compression fractures.

    PubMed

    Lee, Minji K; Yost, Kathleen J; McDonald, Jennifer S; Dougherty, Ryne W; Vine, Roanna L; Kallmes, David F

    2017-06-01

    The majority of validation done on the Roland-Morris Disability Questionnaire (RMDQ) has been in patients with mild or moderate disability. There is paucity of research focusing on the psychometric quality of the RMDQ in patients with severe disability. To evaluate the psychometric quality of the RMDQ in patients with severe disability. Observational clinical study. The sample consisted of 214 patients with painful vertebral compression fractures who underwent vertebroplasty or kyphoplasty. The 23-item version of the RMDQ was completed at two time points: baseline and 30-day postintervention follow-up. With the two-parameter logistic unidimensional item response theory (IRT) analyses, we derived the range of scores that produced reliable measurement and investigated the minimal clinically important difference (MCID). Scores for 214 (100%) patients at baseline and 108 (50%) patients at follow-up did not meet the reliability criterion of 0.90 or higher, with the majority of patients having disability due to back pain that was too severe to be reliably measured by the RMDQ. Depending on methodology, MCID estimates ranged from 2 to 8 points and the proportion of patients classified as having experienced meaningful improvement ranged from 26% to 68%. A greater change in score was needed at the extreme ends of the score scale to be classified as having achieved MCID using IRT methods. Replacing items measuring moderate disability with items measuring severe disability could yield a version of the RMDQ that better targets patients with severe disability due to back pain. Improved precision in measuring disability would be valuable to clinicians who treat patients with greater functional impairments. Caution is needed when choosing criteria for interpreting meaningful change using the RMDQ. Copyright © 2017 Elsevier Inc. All rights reserved.

  17. The Association of Each Disability Based on the Three Sub-Categories of the Roland-Morris Disability Questionnaire during Hospitalization with Itself at 1 Year Postoperatively in Patients with Degenerative Lumbar Spinal Stenosis

    PubMed Central

    Manabe, Nodoka; Ino, Masatake

    2014-01-01

    Study Design A prospective study in a hospital. Purpose To investigate whether each disability based on the three sub-categories of the Roland-Morris disability questionnaire (RDQ) during hospitalization is associated with itself at 1 year postoperatively in patients with degenerative lumbar spinal stenosis (LSS). Overview of Literature Although the total score of the RDQ represents whole pain-related disabilities or health-related quality of life, it is a shortcoming that multi-dimensional changes in disabilities are difficult to understand when only using the RDQ. Methods Fifty-seven patients with LSS (men, 28; women, 29; 63.0±12.1 years) were included. Disabilities, pain intensity and depressive feelings were assessed at preoperation, discharge and 1 year postoperatively. Results The range of "mental and physical activities (MPA)," "functional movements on/around a bed (FM)" and "walking function (WF)" scores were 0 to 13 (median, 8), 0 to 6 (median, 6) and 0 to 4 (median, 3) at preoperation; 0 to 12 (median, 0), 0 to 6 (median, 0), and 0 to 4 (median, 0) at discharge; and 0 to 8 (median, 0), 0 to 5 (median, 0), and 0 to 4 (median, 0) at 1 year postoperatively, respectively. The following significant multiple regression equations were obtained: MPA at 1 year postoperatively=0.56 (MPA at discharge)-0.10 (depression at discharge)+0.90 (adjusted r2=0.41), FM at 1 year postoperatively=0.35 (MPA at discharge)-0.06 (depression at discharge)+0.40 (adjusted r2=0.45) and WF at 1 year postoperatively=0.59 (WF at discharge)-0.08 (depression at discharge)+0.63 (adjusted r2=0.29). Conclusions In our LSS population, each disability based on MPA and WF at discharge is associated with itself in the future. Therefore, disabilities excluding functional movements are longitudinally independent. PMID:24596598

  18. Comparison of two treatment strategies for the early treatment of an anterior skeletal open bite : Posterior bite block-vertical pull chin cup (PBB-VPC) vs. posterior bite block-high pull headgear (PBB-HPH).

    PubMed

    Turkkahraman, Hakan; Cetin, Ebru

    2017-07-01

    Aim of the present study was to compare the effects of posterior bite block-vertical pull chin cup (PBB-VPC) and posterior bite block-high pull headgear (PBB-HPH) in the early treatment of anterior open bite. This retrospective study was carried out using pretreatment (T1) and posttreatment (T2) lateral cephalometric radiographs of 28 patients treated with either PBB-VPC or PBB-HPH and 14 age-matched control patients with anterior open bite. The treatment changes were evaluated with 20 measurements (7 angular and 13 linear). Intergroup comparisons of the cephalometric measurements were performed by ANOVA, and a post hoc Tukey test was used to perform multiple comparisons. There was no significant difference in the open bite correction between the two treatment groups, but both groups showed significantly greater increases in overbite than the controls (P < 0.01). The PBB-HPH group showed more upper incisor retraction than the control group (P < 0.01). The two treatment groups both showed significantly more lower incisor retraction than the controls, and more retraction in the PBB-HPH group was found (P < 0.001). Both PBB-VPC and PBB-HPH were effective in the early treatment of anterior open bite. Retrusion of the upper/lower incisors and a slight increase in the upper anterior dentoalveolar height were the most evident findings in the PBB-VPC group. In the PBB-HPH group, forward maxillary growth was significantly restricted, ANB and overjet were reduced, and the upper and lower incisors were significantly retruded.

  19. [The atypical developments of rolandic epilepsy are predictable complications].

    PubMed

    Pesántez-Ríos, Gabriela; Martínez-Bermejo, Antonio; Arcas, Joaquín; Merino-Andreu, Milagros; Ugalde-Canitrot, Arturo

    2015-08-01

    Introduccion. Las evoluciones atipicas de la epilepsia rolandica son parte de un espectro clinico de fenotipos variables, idiopaticos, dependientes de la edad y con una predisposicion geneticamente determinada. Objetivo. Estudiar las caracteristicas electroclinicas sugestivas de una evolucion atipica en la epilepsia rolandica. Pacientes y metodos. Se realizo una busqueda retrospectiva de 133 niños diagnosticados de epilepsia focal benigna atipica (EFBA), sindrome de Landau-Kleffner y epilepsia de punta-onda continua durante el sueño (POCS). Se seleccionaron nueve pacientes que, en el trascurso de su epilepsia rolandica, presentaron un cuadro clinico atipico y un patron electroencefalografico (EEG) de estado epileptico electrico durante el sueño (ESES). Resultados. El inicio de la epilepsia rolandica fue, en promedio, a los 5 años. Los pacientes presentaron un empeoramiento clinico y del EEG año y medio mas tarde en promedio. En tres pacientes se observaron caracteristicas de EFBA, y en seis, de POCS. No se encontraron casos de sindrome de Landau-Kleffner. El EEG en vigilia mostro una focalidad centrotemporal izquierda en seis pacientes, y derecha, en tres. Todos los pacientes presentaron un ESES en el EEG de sueño. En tres de ellos se observo un patron atipico de ESES regional. Ademas, se detectaron alteraciones cognitivas y conductuales por deficits en areas especificas del aprendizaje, como lenguaje, memoria, atencion e inquietud. Conclusiones. El inicio precoz de la epilepsia rolandica, la aparicion de nuevas crisis con un incremento en su frecuencia y una focalidad frontocentrotemporal en el EEG, que aumenta en frecuencia, tanto en vigilia como en sueño, son caracteristicas electroclinicas sugerentes de una evolucion atipica.

  20. 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.

  1. 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

  2. Purification and characterization of extracellular chin deacetylase from Colletotrichum lindemuthianum.

    PubMed

    Tokuyasu, K; Ohnishi-Kameyama, M; Hayashi, K

    1996-10-01

    Chitin deacetylase, active in the presence of acetate (96% of the enzymatic activity was retained in the presence of 100 mM sodium acetate), was purified to electrophoretic homogeneity from a culture filtrate of Colletotrichum lindemuthianum (944-fold with a recovery of 4.05%). The enzyme was induced in the medium after the eighth day of incubation simultaneously with the blackening of the medium. The molecular mass of the enzyme was 31.5 kDa and 33 kDa as judged by SDS-PAGE and gel filtration, respectively, suggesting that the enzyme is a single polypeptide. The optimum temperature was 60 degrees C and the optimum pH was 11.5-12.0 when glycol chitin was used as substrate. The enzyme was active toward glycol chitin, partially N-deacetylated water soluble chitin, and chitin oligomers the degrees of polymerization of which were more than four, but was less active with chitin trimer and dimer, and inactive with N-acetylglucosamine. The Km and kcat for glycol chitin were 2.55 mM and 27.1 s-1, respectively, and those for chitin pentamer were 414 microM and 83.2 s-1, respectively. The reaction rates of the enzyme toward glycol chitin and chitin oligomers seemed to follow the Michaelis-Menten kinetics.

  3. [Neuropsychological alterations are frequent in rolandic epilepsy and its atypical developments].

    PubMed

    Pesantez-Rios, G; Martinez-Bermejo, A; Pesantez-Cuesta, G

    2016-08-01

    Introduccion. La epilepsia rolandica o epilepsia benigna de la infancia con puntas centrotemporales se denomina benigna debido a lo favorables que suelen ser sus crisis y a la espontanea normalizacion del electroencefalograma al llegar a la pubertad, aunque se ha demostrado el impacto sobre el desarrollo cognitivo con la presencia de deficits cognitivos heterogeneos, relacionados especialmente con las descargas intercriticas persistentes durante el sueño no REM. El objetivo de este trabajo es estudiar las redes epileptogenas involucradas en los trastornos neuropsicologicos de esta patologia. Desarrollo. Las evoluciones atipicas tienen en comun una actividad epileptica persistente durante el sueño lento, que desempeña un papel importante en el desarrollo de los deficits neurocognitivos que se asocian a esta patologia. Factores como la edad de inicio de la epilepsia, el inicio de la evolucion atipica, la localizacion de las descargas interictales y la actividad epileptica continua durante el sueño que persista durante mas de dos años pueden provocar cambios en el funcionamiento de las redes neurocognitivas, con los consecuentes deficits en las funciones neuropsicologicas, que incluso pueden resultar irreversibles. Conclusiones. Es necesario un seguimiento cercano tanto clinico como electroencefalografico; ademas, deben realizarse estudios neuropsicologicos formales desde el inicio de la epilepsia benigna de la infancia con puntas centrotemporales y mas en los casos que es evidente una evolucion atipica para detectar y prevenir los deficits neuropsicologicos antes de que se instauren definitivamente.

  4. 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.

  5. The Plural Text/The Plural Self: Roland Barthes and William Coles.

    ERIC Educational Resources Information Center

    Harris, Joseph

    The role of the reader in how the meaning of a text is formed has been a nearly obsessive concern of recent critical thought. While theories of reader-response or deconstruction may seem to have had little effect on the practice of teaching literature, they do hold much in common with the way many teachers try to teach writing. The works of Roland…

  6. Roland Barthes, Reading, and Roleplay: Composition's Misguided Rejection of Fragmentary Texts.

    ERIC Educational Resources Information Center

    Seitz, James

    1991-01-01

    Asserts that the act of writing can create surprising, experimental, supple forms of written discourse. Argues for exploring more mobile, heteroglot, polyphonic forms of writing. Suggests that attempting roles that produce fragmentary texts might lead toward approaching the challenges of composing unified texts from a more enlivening perspective.…

  7. Roland Barthes, Reading, and Roleplay: Composition's Misguided Rejection of Fragmentary Texts.

    ERIC Educational Resources Information Center

    Seitz, James

    1991-01-01

    Asserts that the act of writing can create surprising, experimental, supple forms of written discourse. Argues for exploring more mobile, heteroglot, polyphonic forms of writing. Suggests that attempting roles that produce fragmentary texts might lead toward approaching the challenges of composing unified texts from a more enlivening perspective.…

  8. 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 nation’s 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.

    NASA Image and Video Library

    2004-02-04

    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 nation’s 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.

  9. Helmet retention system types as a risk factor to properly attach the chin strap.

    PubMed

    Freitas, C A; Furtado, A M; Petterle, R R; Pimentel, S K; Carvalho, F H

    2017-07-31

    This study aimed to determine the factors associated with the incorrect use of a helmet retention system (loose or open) and how often this happens. This was an observational transversal study conducted in Curitiba, Brazil. Trained observers positioned at traffic lights collected information about the helmet fixation mode, the helmet model (full-face, open-face, modular, half), and the helmet retention system model (micrometric, double-D, fast-release). Additional data including position on the motorcycle, gender, and function of the motorcycle (as a work vehicle) were collected. The observers, collection site, and periods were randomly selected by lots. From a total of 3,050 motorcyclists, 1,807 (59.2%) had their helmets fastened correctly, 907 (29.7%) had the retention system fastened loosely, and in 336 (11.0%), the retention system was completely open. Increased odds of incorrect use were observed for the fast-release and double-D buckles compared to the micrometrics buckles, with a fixed odds ratio (OR) of 4.62 (95% confidence interval [CI], 3.89-5.51) and 3.54 (95% CI, 2.46-5.09), respectively (P <.0001). Full-face helmets had a higher chance of incorrect use (P <.0001), and passengers had a higher incidence of incorrect use of the helmet than drivers (P <.0001). An important risk factor related to the incorrect use of the helmet was the type of retention system. The helmet model and being a passenger had a secondary influence on incorrect use of helmets.

  10. "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…

  11. Transcriptional responses of the black-chinned tilapia Sarotherodon melanotheron to salinity extremes.

    PubMed

    Tine, Mbaye; de Lorgeril, Julien; D'Cotta, Hélèna; Pepey, Elodie; Bonhomme, François; Baroiller, Jean François; Durand, Jean-Dominique

    2008-06-01

    Sarotherodon melanotheron is one of the most euryhaline teleosts able to withstand variations in environmental salinity ranging from freshwater (FW) to 130‰ hyper-saline waters (HSW). Although significant progress has been made in exploring the cellular and molecular changes that accompany salinity adaptation in teleosts, little is known about the effects of long-term acclimation to HSW. We sought to identify in this tilapia species the genes whose transcription is induced by long-term acclimation either to HSW or FW. Two subtractive cDNA libraries were made from gills of fish acclimated for 45 days to either condition, with 320 partial cDNA sequences encoding proteins potentially involved in the response to the two salinity extremes. The ESTs comparisons with genomic databases allowed putative functions to be attributed to 197 of these genes. The suppression subtractive hybridisation (SSH) results were validated by Real-time PCR for 13 candidate genes having presumably a role in osmoregulation, supplemented by Na(+), K(+)-ATPase α-subunit and carbonic anhydrase, two genes known to be implicated in this function. In fish acclimated to both salinity extremes, the functional category of cellular process was the predominant one, which may indicate high cellular turnover rates in FW and HSW-adapted fish. The acclimation to FW and HSW also appeared to trigger the expression of genes involved in transport activity, biological regulation and metabolic processes, at a higher level in fish acclimated to HSW, suggesting higher metabolic activity in this situation. These results are a first step towards the identification of key molecular processes involved in the fish acclimation to extreme salinities.

  12. VizieR Online Data Catalog: Interstellar S isotopes (Chin+, 1996)

    NASA Astrophysics Data System (ADS)

    Chin, Y.-N.; Henkel, C.; Whiteoak, J. B.; Langer, N.; Churchwell, E. B.

    1995-09-01

    A 12C32S, 13C32S, 12 has been made to study interstellar 32S/34S and 34S/33S ratios from the galactic disk. The four CS isotopomers were detected in 20 star forming regions with galactocentric distances between 3 and 9kpc. From a comparison of line velocities, the C33S J=2-1 rest frequency is ~250kHz below the value given in the Lovas (1992) catalog. Taking 12C/13C ratios from Wilson & Rood (1994) and assuming equal 12C32S and 13C32S excitation temperatures and beam filling factors, 12C32S opacities are in the range 3 to 15; average 32S/34S and 34S/33S isotope ratios are 24.4+/-5.0 and 6.27+/-1.01, respectively. While no systematic variation in the 34S/33S isotope ratio is found, the 32S/34S ratio increases with galactocentric distance when accounting for the 12C/13C gradient of the galactic disk. A fit to the unweighted data yields 32S/34S=3.3+/-0.5(DGC/kpc)+4.1+/-3.1 with a correlation coefficient of 0.84. Since the interstellar sulfur (S) isotopes are synthesized by oxygen burning in massive stars, consequences for nucleosynthesis and models of chemical evolution are briefly discussed. (1 data file).

  13. Chin Prompt Plus Re-Presentation as Treatment for Expulsion in Children with Feeding Disorders

    ERIC Educational Resources Information Center

    Wilkins, Jonathan W.; Piazza, Cathleen C.; Groff, Rebecca A.; Vaz, Petula C. M.

    2011-01-01

    Expulsion (spitting out food) is a problem behavior observed in many children with feeding disorders. In the current investigation, we identified 4 children diagnosed with a feeding disorder who exhibited high rates of expulsion. Treatment with re-presentation (placing expelled liquids or solids back into the child's mouth) was not effective in…

  14. "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…

  15. Cortical and subcortical motor mapping in rolandic and perirolandic glioma surgery: impact on postoperative morbidity and extent of resection.

    PubMed

    Carrabba, G; Fava, E; Giussani, C; Acerbi, F; Portaluri, F; Songa, V; Stocchetti, N; Branca, V; Gaini, S M; Bello, L

    2007-06-01

    Surgery for gliomas located inside or in proximity of motor cortex or tracts requires cortical and subcortical mapping to locate motor function; direct electrical stimulation of brain cortex or subcortical pathways allows identification and preservation of motor function. In this study we evaluated the effect which subcortical motor mapping had on postoperative morbidity and extent of resection in a series of patients with gliomas involving motor areas or pathways. One hundred and forty-six patients were included in the study. Intraoperative findings of primary motor cortex or subcortical tracts were reported, together with incidence of new postoperative deficits at short (1 week) and long term (1 month) examination. The relationship between intraoperative identification of subcortical motor tracts and extent of resection was reported. The motor strip was found in 133 patients (91%) and subcortical motor tracts in 91 patients (62.3%). New immediate postoperative motor deficits were documented in 59.3% of patients in whom a subcortical motor tract was identified intra-operatively and in 10.9% of those in whom subcortical tracts were not observed; permanent deficits were observed in 6.5% and 3.5%, respectively. A total resection was achieved in 94.4% of patients with high-grade gliomas and in 46.1% of those with low-grade gliomas.

  16. "La Chanson de Roland" in the Elementary School Classroom: A Case for Medieval Literature and Young Language Students.

    ERIC Educational Resources Information Center

    Petry, Karla L.

    1981-01-01

    Describes successful experiment in teaching of medieval literature to elementary French language classes in the Cincinnati public schools. Purpose was to strengthen linguistic awareness and expand social studies unit on medieval France. (BK)

  17. Significant motor improvement in an infant with congenital heart disease and a rolandic stroke: The impact of early intervention.

    PubMed

    Gallagher, Anne; Dagenais, Lynn; Doussau, Amélie; Décarie, Jean-Claude; Materassi, Manuela; Gagnon, Karine; Prud'homme, Joelle; Vobecky, Suzanne; Poirier, Nancy; Carmant, Lionel

    2017-04-01

    To report the impact of early motor intervention in an infant with congenital heart disease (CHD) and a stroke. A 35-week newborn with a complex CHD and a normal MRI presented with early motor developmental delay at 2 months. She began an intervention program, which included biweekly motor developmental therapy with a physiotherapist, parental education, and daily home exercises. At 4 months, she underwent cardiac surgery. Following surgery, she was diagnosed with a stroke involving the right sylvian artery territory. She continued her intensive intervention program. The 12-month assessment revealed an evident gain of motor function. Despite MRI evidence of a chronic infarct involving the primary motor cortex, the child had normal motor functions. This case report supports the positive impact of early intervention in infants with CHD and its potential effect on enhancing neuroplasticity, even in children with cerebro-vascular accidents involving areas of motor function.

  18. Esthetic and functional reconstruction for burn deformities of the lower lip and chin with free radial forearm flap.

    PubMed

    Lee, Jong-Wook; Jang, Young-Chul; Oh, Suk-Joon

    2006-04-01

    Burn injury often has produced deformity both of contours and cover in face and neck. Hypertrophic burn scar contracture of the lower face and neck is one of the most difficult subjects to solve because it produces problems with function and appearance. In planning the correction, the restoration of normal form and function is the best way in reconstruction. From January 1998 to January 2002, we had 7 patients who had scar contractures of the lower face and neck. We reconstructed their deformities with free radial forearm flap and skin graft. We could get restoration of the facial form to normal shape, position, and quality of the facial skin cover homogeneity. No remarkable complications have been found in all 7 patients. For better outcomes, there are some considerations. The lowest margin of the flap should be limited to at least 1 finger breadth above the hyoid bone because low setting of the flap may deteriorate the cervicomental angle. The skin graft is undertaken in the cervical region. Adhesion between the flap dermis and wound bed may be necessary for reconstruction of the labiomental sulcus. Burn deformities of the lower face and neck area were resurfaced with free radial forearm flap and skin graft. Flaps did not look completely normal, but those were compatible with the adjacent skin. We could have an adequate functional resurfacing and optimal esthetic outcomes while minimizing recurrent contractures.

  19. Effects of chin advancement surgery in hyoid bone and tongue positions and in the dimension of the oropharynx.

    PubMed

    Cabral, Milena Barreto de Arruda; de Freitas, André Carlos; de Araújo, Telma Martins; Pena, Nilson; Brandão Filho, Rivail Almeida

    2013-01-01

    Advancement genioplasty has been increasingly indicated for the correction of anterior mandibular deficiency as it balances the patient's profile and generates functional changes. Thus, the aim of this study was to assess the effects of advancement genioplasty in the oropharyngeal size and in the position of the hyoid bone and tongue. The sample comprised 22 lateral cephalometric radiographs of 11 individuals who had undergone advancement genioplasty alone. Eleven of these radiographs depicted the immediate preoperative period (T0) and the other 11 the postoperative period after at least four months (T1). The radiographs were scanned and exported to the Radiocef Studio 2.0® software (Radio Memory Ltda., Belo Horizonte, MG, Brazil). The landmarks were then identified and automatically measured by the program. The results showed statistically significant differences between the horizontal position of the hyoid bone and tongue and in the oropharyngeal size. The hyoid bone and tongue were repositioned anteriorly after surgery (p = 0.01), thereby increasing the dimension of the oropharyngeal airspace (p = 0.01). The oropharyngeal dimension increased as the tongue base and hyoid bone were repositioned more anteriorly.

  20. Long-standing chin-augmenting costochondral graft creating a diagnostic challenge: A case report and literature review

    PubMed Central

    Mintline, Mark; Ruprecht, Axel; Cohen, Donald; Blumberg, Barton R.; Nair, Madhu K.

    2016-01-01

    To our knowledge, the imaging features of costochondral grafts (CCGs) on cone-beam computed tomography (CBCT) have not been documented in the literature. We present the case of a CCG in the facial soft tissue to the anterior mandible, with changes mimicking a cartilaginous neoplasm. This is the first report to describe the CBCT imaging features of a long-standing graft in the anterior mandible. Implants or grafts may be incidental findings on radiographic images made for unrelated purposes. Although most are well-defined and radiographically homogeneous, being of relatively inert non-biological material, immune reactions to some grafts may stimulate alterations in the appearance of surrounding tissues. Biological implants may undergo growth and differentiation, causing their appearance to mimic neoplastic lesions. We present the case of a cosmetic autogenous CCG that posed a diagnostic challenge both radiographically and histopathologically. PMID:28035307

  1. 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

  2. Garnet-pyroxene-amphibole xenoliths from Chin Valley, Arizona, and implications for continental lithosphere below the Moho

    NASA Astrophysics Data System (ADS)

    Smith, Douglas; Arculus, Richard J.; Manchester, Janet E.; Tyner, G. Nell

    1994-01-01

    Garnet-pyroxene-amphibole xenoliths illustrate how P and T histories can be recorded in rocks from the crust-mantle transition and document the diversity of continental lithosphere below the Mohorovicic discontinuity. The xenoliths are from the Sullivan Buttes Latite in Chino Valley, Arizona, in the Transition Zone of the Colorado Plateau. The most definitive depth assignments depend upon garnet-pyroxene thermobarometry coupled with analysis of Ca and Al gradients in orthopyroxene. Websterites that record temperatures of 600-700C contain orthopyroxene zoned in Al but not Ca, and these rocks were carried up from depths of at least 43 km. Websterites that record temperatures of 800-900C contain more homogeneous orthopyroxene, and they were erupted from 70 to 80 km. Most eclogite and amphibole-rich xenoliths record temperatures in the range bracketed by websterites and so were probably erupted from similar depths. Element abundances and Sr, Nd, and Pb isotope ratios establish that protoliths of most xenoliths formed by crystal-melt fractionation from basaltic magmas. Diverse Sr and Nd isotopic compositions range from Nd-epsilon approximately equals +8 and Sr-87/Sr-86 approximately equals 0.7045 for two websterites to Nd-epsilon approximately equals -9 and Sr-87/Sr-86 approximately equals 0.7064 for both parts of a composite eclogite. Most xenoliths probably have Proterozoic protoliths, although many record more recent thermal and metasomatic events, and a few probably formed from Cenozoic magmas. Observations are consistent with a reconstruction of the lithosphere in which eclogite and amphibole-rich rock were volumetrically important to depths of at least 70-80 km at 25 Ma. Anhydrous peridotite may not dominate just below the Mohorovicic discountinuity beneath Chino Valley or beneath some other localities on the Colorado Plateau and elsewhere. No evidence was observed in the Chino Valley suite for replacement of continental lithosphere during Phanerozic tectonism or for significant underplating in Cenozoic time.

  3. 68Ga PSMA PET/CT in a Rare Case of Metastatic Adenocarcinoma Prostate Presenting as Numb Chin Syndrome.

    PubMed

    Sasikumar, Arun; Joy, Ajith; Pillai, M R A; Gopal, Renuka; Thomas, Boben

    2017-03-01

    A 68-year-old man presented with right-side facial numbness. MRI showed an extra-axial mass infiltrating the right temporal bone. It was debulked surgically, and histopathology revealed metastatic adenocarcinoma. Ga PSMA PET/CT done in view of increased PSA levels and clinically suspicious hard lesion in prostate showed primary lesion in left side of prostate with metastases to the right temporal bone. Primary carcinoma of the prostate and metastases to the right temporal bone were proven histopathologically. Our case highlights the usefulness of Ga PSMA PET/CT in identifying the primary site in suspected prostate cancer and mapping the metastatic sites.

  4. Opercular myoclonic-anarthric status epilepticus: A report of two cases

    PubMed Central

    Bhaskara Rao, Janapareddy Vijaya; Vengamma, Bhuma; Naveen, Thota; Rao, Marella Sudhakar

    2013-01-01

    Opercular myoclonic-anarthric status epilepticus (OMASE) is an uncommon disorder of diverse etiology. This condition is characterized by fluctuating cortical dysarthria associated with epileptic myoclonus involving glossopharyngeal musculature bilaterally. We report two cases of OMASE of vascular etiology in adults. In both patients, ictally clonic expression was consistent with epilepsia partialis continua and bilateral, symmetrical involvement of soft palate in one patient and tongue, lips, chin and inferior jaw in both patients due to bilateral projections of the inferior corticonuclear pathways. The inferior rolandic area of dominant and high frontal region in non-dominant hemispheres were involved by an epileptogenic lesion of vascular etiology, which was confirmed by magnetic resonance imaging of brain and single photon emission computerized tomography. Carotid Doppler study showed thrombosis of internal carotid artery in both patients, suggestive of an embolic origin. Early recognition of OMASE is important for early management of carotid occlusive disease. PMID:24339580

  5. Opercular myoclonic-anarthric status epilepticus: A report of two cases.

    PubMed

    Bhaskara Rao, Janapareddy Vijaya; Vengamma, Bhuma; Naveen, Thota; Rao, Marella Sudhakar

    2013-10-01

    Opercular myoclonic-anarthric status epilepticus (OMASE) is an uncommon disorder of diverse etiology. This condition is characterized by fluctuating cortical dysarthria associated with epileptic myoclonus involving glossopharyngeal musculature bilaterally. We report two cases of OMASE of vascular etiology in adults. In both patients, ictally clonic expression was consistent with epilepsia partialis continua and bilateral, symmetrical involvement of soft palate in one patient and tongue, lips, chin and inferior jaw in both patients due to bilateral projections of the inferior corticonuclear pathways. The inferior rolandic area of dominant and high frontal region in non-dominant hemispheres were involved by an epileptogenic lesion of vascular etiology, which was confirmed by magnetic resonance imaging of brain and single photon emission computerized tomography. Carotid Doppler study showed thrombosis of internal carotid artery in both patients, suggestive of an embolic origin. Early recognition of OMASE is important for early management of carotid occlusive disease.

  6. The impact of environmental degradation on reproduction of the black-chinned tilapia Sarotherodon melanotheron from various coastal marine, estuarine and freshwater habitats.

    PubMed

    Guèye, Moussa; Kantoussan, Justin; Tine, Mbaye

    2013-07-01

    There is growing evidence that climate change has greatly altered environmental conditions in many aquatic ecosystems over the last decades, leading to changes in fish distribution and life history traits. Recent works conducted in Senegalese and Gambian coastal marine, estuarine and freshwater ecosystems have shown important changes in the intensity, frequency and breeding timing of wild population of Sarotherodon melanotheron in response to changes in salinity regimes. In addition to salinity, this study investigates the potential influences of other environmental factors that have received less attention on the reproduction of S. melanotheron from three different aquatic ecosystems in Senegal. The results demonstrate that day-length and temperature affect sexual maturity in both males and females from Guiers Lake and Hann Bay, but no such effects were found in upstream of the Saloum Estuary, where the spawning activity seems to be under the synergetic control of rainfall and salinity that apparently predominate over all the other ambient factors. This study demonstrated for the first time that aside from photoperiod and temperature, rainfall also influences fish reproduction in Hann Bay probably through its effects on water quality. Furthermore, our results confirm previous findings that changes in salinity regimes resulting from seasonal variations in precipitation and evaporation are the ultimate causes of temporal changes in the reproductive activity of the species in this estuary.

  7. Identification of individual foothill yellow-legged frogs (Rana boylii) using chin pattern photographs: a non-invasive and effective method for small population studies

    Treesearch

    K.R. Marlow; K.D. Wiseman; Clara Wheeler; J.E.  Drennan; R.E.  Jackman

    2016-01-01

    The ability to identify individual animals is a valuable tool in the study of amphibian population dynamics, movement ecology, social behavior, and habitat use. Numerous methods of marking amphibians have been employed including the use of passive integrated transponder (PIT) tags, radio-transmitters, elastomers, branding, and mutilation techniques such as toe...

  8. Salinity-related variation in gene expression in wild populations of the black-chinned tilapia from various West African coastal marine, estuarine and freshwater habitats

    NASA Astrophysics Data System (ADS)

    Tine, Mbaye; McKenzie, David J.; Bonhomme, François; Durand, Jean-Dominique

    2011-01-01

    This study measured the relative expression of the genes coding for Na +, K +-ATPase 1α(NAKA), voltage-dependent anion channel (VDAC), cytochrome c oxidase-1 (COX), and NADH dehydrogenase (NDH), in gills of six wild populations of a West African tilapia species, acclimatised to a range of seasonal (rainy or dry) salinities in coastal, estuarine and freshwater sites. Previous laboratory experiments have demonstrated that these genes, involved in active ion transport, oxidative phosphorylation, and intra-cellular ATP transport, are relatively over-expressed in gill tissues of this species acclimated to high salinity. Positive correlations between relative expression and ambient salinity were found for all genes in the wild populations (Spearman rank correlation, p < 0.05), although for some genes these were only significant in either the rainy season or dry season. Most significantly, however, relative expression was positively correlated amongst the four genes, indicating that they are functionally interrelated in adaptation of Sarotherodon melanotheron to salinity variations in its natural environment. In the rainy season, when salinity was unstable and ranged between zero and 37 psu across the sites, overall mean expression of the genes was higher than in the dry season, which may have reflected more variable particularly sudden fluctuations in salinity and poorer overall water quality. In the dry season, when the salinity is more stable but ranged between zero and 100 psu across the sites, NAKA, NDH and VDAC expression revealed U-shaped relationships with lowest relative expression at salinities approaching seawater, between 25 and 45 psu. Although it is not simple to establish direct relationship between gene expression levels and energy requirement for osmoregulation, these results may indicate that costs of adaptation to salinity are lowest in seawater, the natural environment of this species. While S. melanotheron can colonise environments with extremely high salinities, up to 100 psu, this was related to high relative expression for all genes studied, indicating that this imposes increased energy demand for osmotic homeostasis in gill tissues. This study is the first to demonstrate, in fish and in wild populations, that expression of NAKA, VDAC, NDH and COX are interrelated in gill tissues, and are involved in long-term acclimatisation to a salinity range between 0 and 100 psu.

  9. International Assessment of Research and Development in Brain-Computer Interfaces. WTEC Panel Report

    DTIC Science & Technology

    2007-10-01

    World Technology Evaluation Center, Inc. 4800 Roland Avenue Baltimore, Maryland 21210 WTEC Panel Report on INTERNATIONAL ASSESSMENT OF...World Technology Evaluation Center Inc,4800 Roland Avenue,Balltimore,MD,21210 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING/MONITORING...x2820; Email: fromherz@biochem.mpg.de http://www.biochem.mpg.de/en/rd/fromherz/ Dr. Roland Thewes, guest from Infineon Email: roland.thewes

  10. Uwarunkowania rozwoju turystyki na przykładzie wybranych geoparków Chin / Legal possibilities of geodiversity determinants of tourism development on the basis of selected Chinese geoparks

    NASA Astrophysics Data System (ADS)

    Papińska, Elżbieta

    2012-12-01

    The area of China is characterized by remarkably complex geological structures and numerous types of landscape. China's landscapes vary from alpine to lowlands, from extremely arid (desert) to wetlands, from karst to volcanic. Spectacular landforms and numerous interesting geological sites became tourist attractions that influenced the development of domestic and foreign tourism. The Chinese quickly recognized the extraordinary natural assets of their territory and established an extensive network of protected areas. Geoparks are an important component of this network and there were a total of 342 geoparks in 2009. This number includes 183 of national and 159 provincial geoparks. Geodiversity of China is also reflected in UNESCO's World Network of Geoparks (GGN - Global Geoparks Network, 2009), where 24 of 77 parks come from the territory of China. This paper presents the conditions of the development of tourism in selected geoparks, including Jiuzhaigou, Huanglong (Sichuan province), Huangshan (Anhui Province), Shilin Karst Peak Forest (Stone Forest, Yunnan Province), Tianchi Tianshan (Xinjiang province). Some of them represent national parks and national Geoparks, and Huangshan and Stone Forest are part of UNESCO's World Network of Geoparks.

  11. 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 ...

  12. JPRS Report, East Europe.

    DTIC Science & Technology

    2007-11-02

    Minister of Foreign Affairs Ramiz Alia, who represents the chief executive, and Roland Dumas. Enver Hoxha’s widow, who with the old guard maintains...higher party agencies in the case of unsubstantiated advantage of my stay in Paris to try to meet with Roland political actions against them. Dumas...and others are following us. It is we who tested In a letter to the MTI press agency, Roland Antoniewicz, whether the Brezhnev doctrine holds

  13. Understanding and Communicating through Narratives

    DTIC Science & Technology

    2012-05-17

    to his environment. As a mode of communication, every human and socially constructed entity communicates utilizing narrative format.24 Roland Barthes ...2001. http://www.rand.org/pubs/monograph_reports/MR138 (accessed March 10, 2011). Barthes , Roland . “On Narrative and Narratives.” New Literary...25Roland Barthes , “On Narrative and Narratives,” New Literary History 6, no. 2 (Winter 1975): 238. 26Paul Hazel, “Narrative: An Introduction” blog, entry

  14. 38 CFR 4.118 - Schedule of ratings-skin.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... distortion or asymmetry of three or more features or paired sets of features (nose, chin, forehead, eyes... sets of features (nose, chin, forehead, eyes (including eyelids), ears (auricles), cheeks, lips), or... gross distortion or asymmetry of one feature or paired set of features (nose, chin, forehead, eyes...

  15. Applying Human Capital Management to Model Manpower Readiness: A Conceptual Framework

    DTIC Science & Technology

    2005-12-01

    CAPITAL MANAGEMENT TO MODEL MANPOWER READINESS: A CONCEPTUAL FRAMEWORK by Pert Chin Ngin December 2005 Associate Advisors: William R...Management to Model Manpower Readiness: A Conceptual Framework 6. AUTHOR(S) Pert Chin Ngin 5. FUNDING NUMBERS 7. PERFORMING ORGANIZATION NAME(S...distribution is unlimited. APPLYING HUMAN CAPITAL MANAGEMENT TO MODEL MANPOWER READINESS: A CONCEPTUAL FRAMEWORK Pert Chin Ngin MAJOR, Republic of

  16. Complete Genome Sequences of Six Chrysodeixis includens Nucleopolyhedrovirus Isolates from Brazil and Guatemala

    PubMed Central

    Craveiro, Saluana R.; Santos, Luis Arthur V. M.; Togawa, Roberto C.; Inglis, Peter W.; Grynberg, Priscila; Ribeiro, Zilda Maria A.; Ribeiro, Bergmann M.

    2016-01-01

    The baculovirus, Chrysodeixis (formerly Pseudoplusia) includens nucleopolyhedrovirus (ChinNPV), is a new Alphabaculovirus pathogenic to Chrysodeixis includens. Here, we report the complete genome sequences of six ChinNPV isolates. The availability of these genome sequences will provide information on ChinNPV molecular genetics, promoting understanding of its pathogenicity, diversity, and evolution. PMID:27932639

  17. Justice: A Problem for Military Ethics during Irregular War

    DTIC Science & Technology

    2008-05-22

    189 (to Boniface),” trans. Roland Teske , ed. Boniface Ramsey (Hyde Park, New York: New York City Press, 2004), 261. 9 society was not the primary...Marcus Dods. New York: The Modern Library, 1950. Augustine. The Works of Saint Augustine. Translated by Roland Teske . Edited by Boniface Ramsey. Hyde

  18. Perceptions of Army Health Care: A Blueprint for the Future

    DTIC Science & Technology

    1989-02-17

    positive perceptions. A strong, proactive public affairs program is needed to accomplish this task. 6 ENDNOTES 1. Neil Roland , "Problem Doctors," Army Times...2 November 1987, p. 3. 5. "From the Ferment, Profound Changes," Army, March 1986, p. 31. 6. Neil Roland , "Army Accepts Psychiatrist with Revoked...License," Army Times, 18 March 1985, p. 8. 7. Neil Roland , "Man found to be Bogus Doctor Allowed in Army," Army Times, 25 March 1985, p. 4. 8. Interview

  19. US Army Order of Battle 1919-1941. Volume 2. The Arms: Calvary, Field Artillery, and Coast Artillery, 1919-41

    DTIC Science & Technology

    2010-01-01

    21 May 1924–ao June 1924 Unknown ao January 1932–14 December 1937 Unknown ao June 1924–ao March 1931 Lt. Col. Roland E. Murphy 14 December 1937–19...a training regiment. Commanders, 322d Cavalry Regiment Capt. Harry Stimpel 11 March 1922–April 1922 Lt. Col. Roland E. Murphy ao February 1931–14...Army Reserve as HHC, 76th Regt. (CST). Commanders, 151st Field Artillery Brigade Maj. James W. Gilson November 1921–12 November 1924 Maj. Roland S

  20. Structuralism: Its Implications for the Performance of Prose Fiction

    ERIC Educational Resources Information Center

    Hopkins, Mary Francis

    1977-01-01

    Discusses the implications of structuralism by examining "Introduction to The Structural Analysis of Narrative", a contemporary writing by Roland Barthes. Explains Barthes' terms and concepts by using Virginia Woolf's Mrs. Dalloway character for an example. (MH)

  1. How Chronic Fatigue Syndrome Wears Patients Out

    MedlinePlus

    ... Roland Staud, a professor of rheumatology and clinical immunology at the University of Florida College of Medicine. " ... conditions associated with extreme exhaustion, such as lupus, cancer and depression. "It's unlikely the central nervous system ...

  2. 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.

  3. Structuralism: Its Implications for the Performance of Prose Fiction

    ERIC Educational Resources Information Center

    Hopkins, Mary Francis

    1977-01-01

    Discusses the implications of structuralism by examining "Introduction to The Structural Analysis of Narrative", a contemporary writing by Roland Barthes. Explains Barthes' terms and concepts by using Virginia Woolf's Mrs. Dalloway character for an example. (MH)

  4. In Vitro Studies of Neurotoxic Substances

    DTIC Science & Technology

    1985-12-31

    OF BIOLOGY CATHOLIC UNIVERSITY OF AMERICA t- WASHINGTON, D.C. 20064 4 Dr. Roland M. Nardone D 6 S-. distrib -:ý- Control .ig Office: USAF Office of...UNIVERSITY OF AMERICA occes___ FWASHINGTON, D.C. 20064 NTIS CRA&I SDTIC TAB [Uoarmnounced Dr. Roland M. Nardone .......................... .. By.... Dizd...cost, time, and control which often outweigh 𔃻 4 the limitations of the systems, provided they are used -. , judiciously ( Nardone , 1980). .-.. The

  5. Numerical Analysis of Plasma Transport in Tandem Volume Magnetic Multicusp Ion Sources

    DTIC Science & Technology

    1992-03-01

    oDTIC ELECTE 0 ~OF NUMERICAL ANALYSIS OF PLASMA TRANSPORT IN TANDEM VOLUME MAGNETIC MULTICUSP ION SOURCES THESIS Todd Roland Vitko Captain, USAF AFIT...TANDEM VOLUME MAGNETIC MULTICUSP ION SOURCES THESIS Todd Roland Vitko Captain, USAF AFIT/GEP/ENP/92M-01 Approved for public release; distribution...unlimited. AFIT/GEP/ENP/92M-01 NUMERICAL ANALYSIS OF PLASMA TRANSPORT IN TANDEM VOLUME MAGNETIC MULTICUSP ION SOURCES THESIS Presented to the Faculty of the

  6. POW/MIA Issues. Volume 2. World War II and the Early Cold War

    DTIC Science & Technology

    1994-01-01

    Valentine Bay (105 miles to the east of Vladivostok). 2 0The crew members lost in the B-29 incident of June 13, 1952, were: Major Samuel N. Busch A0733811...Heydekrug, POW Camp No. 6, Grave 3, East Prussia 17. Robinson, Roy A. SIc 611 0637 City Cemetery, Murmansk, in lots for foreigners, USSR 18. Roland ...Nathan Ernser, Roland R. Irving, Edward J. Lang, Frederick A. Lord, Orvil H. Each set of remains was recovered from the far eastern area of the

  7. Survey of Neural Net Paradigms for Specification of Discrete Networks.

    DTIC Science & Technology

    1988-01-31

    appendix. 23 References 1. Cambier, J.L., Barth , S., Reid, W.J., Barrett,S., "Advanced Pattern Recognition", F30602-80-C-0319. ADA 132 339 2. Elman, J.L...Nov. 1985. ., .U U - - A 1 Bibliography Berge, Claude, "Principles of Combinatorics", Academic Press, 1971 Fischer, Roland , "Deconstructing Reality... Roland W., "Cognitive Strategies in Stochastic Thinking", D. Reidel, 1982(?) Searle, John, "Expression and Meaning", Cambridge U. Press, 1979 Talmy

  8. Counterinsurgency in Afghanistan, Rand Counterinsurgency Study, Volume 4

    DTIC Science & Technology

    2008-01-01

    Fearon and Laitin, “Ethnicity, Insurgency, and Civil War,” pp. 75–90. On the importance of building institutions, see Roland Paris, At War’s End...Tanke Holm and Espen Barth Eide, eds., Peacebuilding and Police Reform (Portland, Oreg.: Frank Cass, 2000). Figure 7.1 Variation in Indigenous...Press, March 1, 2006. Pape, Robert. Dying to Win: The Strategic Logic of Suicide Terrorism. New York: Random House, 2005. Paris, Roland . At War’s End

  9. Gulf War Illness and the Health of Gulf War Veterans

    DTIC Science & Technology

    2008-11-01

    veterans: current status of research findings. Epidemiol Rev. 2002;24:218-227. 105. Barth S. Neurological and all-cause mortality among U.S. veterans...proton magnetic resonance spectroscopy and plasma homovanillic acid levels. Arch Neurol. 2000;57:1280-1285. 563. Haley RW, Hom J, Roland PS, et al...True Democracy. Spring 2000;2(2). 1304. Roland PS, Haley RW, Yellin W, Owens K, Shoup AG. Vestibular dysfunction in Gulf War syndrome. Otolaryngol

  10. Investigation on Novel Methods to Increase Specific Thrust in Pulse Detonation Engines via Imploding Detonations

    DTIC Science & Technology

    2009-12-01

    NOVEL METHODS TO INCREASE SPECIFIC THRUST IN PULSE DETONATION ENGINES VIA IMPLODING DETONATIONS by Ivan Chin Kian Ho December 2009 Thesis...Increase Specific Thrust in Pulse Detonation Engines via Imploding Detonations 6. AUTHOR(S) Ivan Chin Kian Ho 5. FUNDING NUMBERS 7. PERFORMING...long run distance for transition to detonation, thus, potentially affecting specific thrust . Novel methods via imploding detonations were

  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. 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,…

  13. Standardization of head and neck contouring using the acanthiomeatal line.

    PubMed

    Desai, Snehal; Teh, Bin S; Hinojosa, Jose; Bell, Bent C; Paulino, Arnold C; Butler, E Brian

    2009-01-01

    The purpose of this study was to determine the perceived and actual chin position(s) used for radiotherapy of head-and-neck cancers in a variety of clinical settings. Dosimetrists were asked to describe the external landmarks used to set the chin position. The lateral treatment planning radiographic figures in Ang's textbook, Radiotherapy for Head and Neck Cancers: Indications and Techniques, were analyzed for chin position by drawing a horizontal line from the tip of the chin to the cervical spine. The physicians at 7 departments were asked to rate the chin positions used in their departments for head-and-neck simulations. Choices included: (1) mildly flexed, (2) neutral, (3) mildly extended, and (4) hyperextended. In addition, each center was asked to select 2 representative cases to show routine chin position. The dosimetrists fixed the chin in neutral position by placing a virtual plane defined by 3 points (the base of the nasal septum [acanthus] and the external auditory canals) perpendicular to the table top. The type of head holder was irrelevant. Eighty-two percent (31/38) of the figures in Ang's text showed positioning in the neutral position (tip of the chin intersected the cervical spine between C2-3/C3-4). Most (71.4%) of the radiotherapists thought their patients were treated in the hyperextended neck position but, in fact, 85.7% (12/14) of the simulations showed a neural neck position. Reproducible chin positioning can be obtained by using the acanthiomeatal line. Consistent use of this technique will create a uniformly positioned set of axial co-images that have consistent appearance of avoidance and lymphatic areas. This will simplify contouring on axial computed tomography (CT) images of the neck. Standardizing the chin position is an important step to developing a standardized atlas and developing an information tool for automated contouring.

  14. Standardization of Head and Neck Contouring Using the Acanthiomeatal Line

    SciTech Connect

    Desai, Snehal; Teh, Bin S. Hinojosa, Jose; Bell, Bent C.; Paulino, Arnold C.; Butler, E. Brian

    2009-10-01

    The purpose of this study was to determine the perceived and actual chin position(s) used for radiotherapy of head-and-neck cancers in a variety of clinical settings. Dosimetrists were asked to describe the external landmarks used to set the chin position. The lateral treatment planning radiographic figures in Ang's textbook, Radiotherapy for Head and Neck Cancers: Indications and Techniques, were analyzed for chin position by drawing a horizontal line from the tip of the chin to the cervical spine. The physicians at 7 departments were asked to rate the chin positions used in their departments for head-and-neck simulations. Choices included: (1) mildly flexed, (2) neutral, (3) mildly extended, and (4) hyperextended. In addition, each center was asked to select 2 representative cases to show routine chin position. The dosimetrists fixed the chin in neutral position by placing a virtual plane defined by 3 points (the base of the nasal septum [acanthus] and the external auditory canals) perpendicular to the table top. The type of head holder was irrelevant. Eighty-two percent (31/38) of the figures in Ang's text showed positioning in the neutral position (tip of the chin intersected the cervical spine between C2-3/C3-4). Most (71.4%) of the radiotherapists thought their patients were treated in the hyperextended neck position but, in fact, 85.7% (12/14) of the simulations showed a neural neck position. Reproducible chin positioning can be obtained by using the acanthiomeatal line. Consistent use of this technique will create a uniformly positioned set of axial co-images that have consistent appearance of avoidance and lymphatic areas. This will simplify contouring on axial computed tomography (CT) images of the neck. Standardizing the chin position is an important step to developing a standardized atlas and developing an information tool for automated contouring.

  15. Commentary on "Surveillance guidelines based on recurrence patterns after radical cystectomy for bladder cancer: the Canadian Bladder Cancer Network experience." Yafi FA, Aprikian AG, Fradet Y, Chin JL, Izawa J, Rendon R, Estey E, Fairey A, Cagiannos I, Lacombe L, Lattouf JB, Bell D, Saad F, Drachenberg D, Kassouf W. Department of Surgery (Urology), McGill University, Quebec, Canada: BJU Int 2012;110(9):1317-23 [Epub 2012 Apr 13].

    PubMed

    Kamat, Ashish M

    2013-07-01

    Study Type-Prognosis (cohort) Level of Evidence 2a. What's known on the subject? and What does the study add? Radical cystectomy with pelvic lymph node dissection is recognized as the standard of care for carcinoma invading bladder muscle and for refractory non-muscle-invasive bladder cancer. Owing to high recurrence and progression rates, a two-pronged strict surveillance regimen, consisting of both functional and oncological follow-up, has been advocated. It is also well recognized that more aggressive tumours with extravesical disease and node-positive disease recur more frequently and have worse outcomes. This study adds to the scant body of literature available regarding surveillance strategies after radical cystectomy for bladder cancer. In the absence of any solid evidence supporting the role of strict surveillance regimens, this extensive examination of recurrence patterns in a large multi-institutional project lends further support to the continued use of risk-stratified follow-up and emphasizes the need for earlier strict surveillance in patients with extravesical and node-positive disease. To review our data on recurrence patterns after radical cystectomy (RC) for bladder cancer (BC). To establish appropriate surveillance protocols. We collected and pooled data from a database of 2287 patients who had undergone RC for BC between 1998 and 2008 in eight different Canadian academic centres. Of the 2287 patients, 1890 had complete recurrence information and form the basis of the present study. A total of 825 patients (43.6%) developed recurrence. According to location, 48.6% of recurrent tumours were distant, 25.2% pelvic, 14.5% retroperitoneal and 11.8% to multiple regions such as pelvic and retroperitoneal or pelvic and distant. The median (range) time to recurrence for the entire population was 10.1 (1-192) months with 90 and 97% of all recurrences within 2 and 5 years of RC, respectively. According to stage, pTxN+ tumours were more likely to recur than p ≥ T3N0 tumours and p ≤ T2N0 tumours (5-yr RFS 25% vs. 44% vs. 66% respectively, P < 0.001). Similarly, pTxN+ tumours had a shorter median time to recurrence (9 months, range 1-72 months) than p ≥ T3N0 tumours (10 months, range 1-70 months) or p ≤ T2N0 tumours (14 months, range 1-192 months, P < 0.001). Differences in recurrence patterns after RC suggest the need for varied follow-up protocols for each group. We propose a stage-based protocol for surveillance of patients with BC treated with RC that captures most recurrences while limiting over-investigation. Copyright © 2013. Published by Elsevier Inc.

  16. Relevance of ovarian signaling for the early behavioral transition from estrus to pregnancy in the female rabbit.

    PubMed

    Hoffman, K L; González-Mariscal, G

    2007-11-01

    During estrus, the female domestic rabbit (Oryctolagus cuniculus) displays scent marking behavior (chinning), which is immediately inhibited after mating, temporarily recovers, and then declines and remains inhibited across pregnancy. Chinning is inhibited by progesterone (P) and the activation of the progesterone receptor (PR), but it is unlikely that P participates in the "acute" (immediate) or "early" inhibition of chinning (24 to 96 h post-mating, before plasma P levels rise). Since PR is activated in a ligand-independent manner by a variety of signaling molecules, some of which (e.g., GnRH) are also associated with reflexive ovulation in this species, we hypothesized that neurochemical/neuroendocrine signals associated with mating activate PR, resulting in the inhibition of chinning. In Experiment 1, we tested whether the PR antagonist, RU486 (20 mg, injected s.c. at -1 h, or at -7 h and +3 h relative to mating) prevented the post-mating inhibition of chinning in intact females. RU486 did not prevent the post-mating decline in chinning, indicating that PR activation associated with mating is not necessary for this effect. In Experiment 2, we used ovariectomized (OVX), estradiol benzoate (EB)-treated females to test the hypothesis that ovarian signaling is necessary for the post-mating inhibition of chinning. The acute inhibition of chinning occurred in OVX females, but the early inhibition was absent. We conclude that ovarian signaling is necessary for the early, but not acute, post-mating inhibition of chinning. The PR seems not to participate in either of these phases.

  17. Integral inversion to Fraunhofer diffraction for particle sizing.

    PubMed

    Cao, Zhang; Xu, Lijun; Ding, Jie

    2009-09-01

    A new solution to the inversion of Fraunhofer diffraction for particle sizing was introduced. Compared with the well-known Chin-Shifrin inversion, it is an inversion of the form of integral transform and less sensitive to noise. Simulation results with noise-contaminated data were obtained and showed that the new inversion is better than the Chin-Shifrin inversion. Especially when the particle diameter was small, the new inversion still performed well, whereas the Chin-Shifrin inversion did not converge.

  18. Fracture, Longevity (Fatigue), Dynamics, and Aeroelasticity of Composite Structures.

    DTIC Science & Technology

    1983-06-01

    lengths of time) Karen Archard Ya-Pei Chang Carroll Dodson Keith Ashelin David Chin Chris Dunmire John Brewer John Chisholm Eric Fujii Jim Butler... David , and Chin, David A., "Nonlinear Stress-Strain Behavior in Graphite/Epoxy Laminates", TELAC Report 82-7, May, 1982. 14. Chang, Ya-Pei A., and...34, May, 1982. TELAC-82-7a Chin, David A., "Nonlinear Stress-Strain Behav- ior in Graphite/Epoxy Laminates", May, 1982. 137 TELAC-82-7b Trop, David

  19. BASIC CONCEPTS TO BE RECKONED IN A PROPER HISTORY OF ALCHEMY

    PubMed Central

    Mahdihassan, S.

    1986-01-01

    Use of simple synthetic drug called Chin – Yeh, Gold – plus – plant juice or red colloidal gold. Gold made body everlasting and the herbal principle, as soul, increased life-span. Dialectally it was called Kim – Iya. Arabicized as Al – Kimiya it finally appeared as Alchemy. Chin – Yeh as drug was only brick – red when mercury, and sulphur – with traces of gold were sublimated there resulted Chin – Tan, Gold – plus – cinnabar. It was blood – red and with redness as soul it became the ideal drug of longevity. PMID:22557523

  20. 21 CFR 878.3500 - Polytetrafluoroethylene with carbon fibers composite implant material.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., 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...

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

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ..., 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...

  3. Tonometry

    MedlinePlus

    ... records eye pressure. The last method is the noncontact method (air puff). In this method, your chin ... you should not have any pain. In the noncontact method, you may feel mild pressure on your ...

  4. 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 ...

  5. Potter syndrome

    MedlinePlus

    ... Widely separated eyes with epicanthal folds , broad nasal bridge , low set ears , and receding chin Absence of ... Names Potter phenotype Images Amniotic fluid Broad nasal bridge References Copelovitch L, Kaplan BS. Developmental abnormalities of ...

  6. 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

  7. 21 CFR 878.3500 - Polytetrafluoroethylene with carbon fibers composite implant material.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ..., 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 or...

  8. Genetics Home Reference: congenital contractural arachnodactyly

    MedlinePlus

    ... 1):39-48. Citation on PubMed Gupta PA, Wallis DD, Chin TO, Northrup H, Tran-Fadulu VT, ... PubMed Central Reviewed : July 2013 Published : October 10, 2017 The resources on this site should not be ...

  9. Genetics Home Reference: congenital generalized lipodystrophy

    MedlinePlus

    ... a large chin, prominent bones above the eyes ( orbital ridges ), large hands and feet, and a prominent ... E, Assan R, Baudic N, Bourut C, Czernichow P, Huet F, Grigorescu F, de Kerdanet M, Lacombe ...

  10. 21 CFR 878.3500 - Polytetrafluoroethylene with carbon fibers composite implant material.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ..., 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 or...

  11. Congenital Heart Information Network

    MedlinePlus

    ... Baemayr for The Congenital Heart Information Network Exempt organization under Section 501(c)3. Copyright ©1996 - 2016 C.H.I.N. All rights reserved TX4-390-685 Original site design and HTML by Panoptic Communications

  12. US Army Order of Battle 1919-1941. Volume 3. The Services: Air Service, Engineers, and Special Troops, 1919-41

    DTIC Science & Technology

    2010-01-01

    Weir 9 Sep 36-13 Oct 38 2nd Lt. Roland O. S. Akre 15 Mar 33-28 Mar 33 Lt. Col. Junius H. Houghton 10 Mar 36-18 Jul 36 2nd Lt. Neal E. Ausman 28...Myers 20 Aug 36-2 Aug 37 1st Lt. John C. Kennedy 20 Apr 26-27 Oct 26 Maj. Donald B. Phillips 2 Aug 37-Jun 40 1st Lt. Roland C. W. Blessley 27 Oct...Vernon L. Burge 27 Aug 30-12 Oct 32 Capt. Roland W. Wittman 18 Nov 22-1 Dec 22 Capt. John G. Whiteside 12 Oct 32-16 Mar 34 Capt. Frederick I. Eglin

  13. Interfacial and Thin Film Chemistry in Electron Device Fabrication

    DTIC Science & Technology

    1990-11-20

    264 (1990). M. T. Schmidt, Q. Y. Ma, L. S. Weinman, X. Wu, E. S. Yang, and Chin-An Chang, " Chesmistry and Resistance at Metal Contacts to YBa2Cu3O 7...Schmidt, Q. Y. Ma, L. S. Weinman, X. Wu, E. S. Yang, and Chin-An Chang, " Chesmistry and Resistance at Metal Contacts to YBa2Cu307 High Tc

  14. Scent marking by the male domestic rabbit (Oryctolagus cuniculus) is stimulated by an object's novelty and its specific visual or tactile characteristics.

    PubMed

    Hoffman, Kurt L; Hernández Decasa, D M; Beyer Ruiz, M E; González-Mariscal, Gabriela

    2010-03-05

    "Chinning" is a stereotyped scent marking behavior of domestic rabbits, in which the animal rubs the underside of its chin against objects in order to deposit scent gland secretions. Although the long-term maintenance of chinning requires circulating gonadal steroids, little is known about the acute regulation of this behavior. To define specific environmental stimuli that engage the chinning motor pattern, male rabbits were placed into an open field arena containing markable objects ("standard" bricks, "tall" bricks, or polished onyx spheres), observed for 30 min, returned to the home cage for 5 min, and then placed in the open field arena for another 30 min. During the 5 min interim: (1) the location of the open field or the spatial orientation of the objects within it were changed, (2) the olfactory or (3) visual characteristics of the objects were changed; or (4) no changes were made. Chinning and ambulation habituated to each type of object across the first 30 min, and bricks elicited more chinning than polished onyx spheres. In the second 30 min test, chinning was re-stimulated only when the original objects were replaced by visually different ones that had preferred characteristics. Ambulatory behavior was increased by changing the location of the open field arena, while modifying the olfactory characteristics of the objects had no effect on chinning or ambulation. These results indicate that scent marking is stimulated by object novelty and by the visual and/or tactile characteristics of the objects being marked. Copyright 2009 Elsevier B.V. All rights reserved.

  15. Mandible prognathism saved a life: a case report.

    PubMed

    Mahmood Hashemi, Hamid; Asgarian, Asadollah

    2010-10-01

    An unusual case of a suicidal firearm injury is presented, in which the victim placed the gun under his chin and fired. However, none of the vital structures of the head and face were injured because the victim's chin was considerably anterior to other facial structures as a result of a class III facial deformity. This resulted in the trajectory of the bullet being anterior to vital facial structures and not causing injury to those structures.

  16. Remarks on a model for outbursts in luminous blue variables

    NASA Astrophysics Data System (ADS)

    Glatzel, W.; Kiriakidis, M.

    1998-03-01

    The stability of massive stars is re-examined with respect to an adiabatic dynamical instability discovered by Stothers & Chin. An adiabatic stability analysis is performed, its validity for the objects being considered is discussed, and the relation between the mean adiabatic index and adiabatic stability is commented on. As the results of Stothers & Chin could not be confirmed, we suspect that luminous blue variable instability is due to nonadiabatic effects.

  17. 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. Copyright © 2015 Elsevier Inc. All rights reserved.

  18. Cloud Effects on Ocean Mixed Layer in the Northeast Pacific Ocean

    DTIC Science & Technology

    1991-06-01

    I’ao- Kuni Wu June 1991. Thesis Advisor: Pecheuig C111 Co-Advisor: Roland W..Garwooci Approved for public release; distribution is unlimited. 92-05682...POSTGRADUATE SCHOOL June 1991 Author: ( DL’ KoAJ Pao-Kun Wu Approved by: / c g Chu, Thesis Advisor Roland W. Garwood, Co-Advisor Curtis A . Collins...s0 but since they are typically either transient or oscillatory they do not contribute appreciably to advection on a longer time scale. 7 ... .. ’ J

  19. JPRS Report, East Europe

    DTIC Science & Technology

    1990-05-04

    j7,712 39.72 Barth , Dr. Janos MDF 16,753 34.78 Kosa, Andras FKgP 4,947 25.48 8 Kiskun- Horvath, Dr. Laszlo FKgP 8,649 58.52 halas Toth, Zoltan SZDSZ 6,129...its beginning stages; it requires the participation of In addition, the management/consulting firm Roland Western leasing firms or banks that...ingrad. Training courses for Soviet cadres * FRG * USSR -Business/administrative consulting of Soviet cadres _ Metal factory Leningrad - Roland Berger and

  20. The attractive lip: A photomorphometric analysis.

    PubMed

    Penna, V; Fricke, A; Iblher, N; Eisenhardt, S U; Stark, G B

    2015-07-01

    Throughout literature, there are different parameters defining the ideal shape of the lip and lower third of the face. This study was conducted to clarify what it is that makes lips attractive - and whether there are gender-related differences of an attractive lip and lower third of the face. Pictures of the lip and chin region of 176 patients were photographed in a standardised way and evaluated by 250 voluntary judges through an internet presentation by means of an analogue Likert scaling system. We found a significant higher ratio of upper vermillion height/mouth-nose distance in frontal-view images of attractive compared to unattractive female (p < 0.001) and male (p < 0.05) perioral regions. Furthermore, the ratio of upper vermillion height/chin-nose distance was significantly higher in attractive than in unattractive female (p < 0.005) and male (p < 0.05) lip and chin regions. The nasolabial angle was significantly sharper in attractive compared to unattractive female perioral regions (p < 0.001). Moreover, attractive female lip and chin regions showed a wider mentolabial angle compared to unattractive female lip and chin regions (p < 0.05). Comparing men and women, we found that attractive female perioral regions showed a higher ratio of lower vermillion height/chin-mouth distance (p < 0.05) and lower vermillion height/chin-nose distance than attractive male perioral regions (p < 0.05). We were able to define certain parameters of the lip and lower third of the face that seem to add to the attractivity of female and male individuals and prove that there are gender-related differences in form and shape of an attractive lower third of the face. Copyright © 2015 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.

  1. Effect of maintaining neck flexion on anti-saccade reaction time: an investigation using transcranial magnetic stimulation to the frontal oculomotor field.

    PubMed

    Kunita, Kenji; Fujiwara, Katsuo

    2013-11-13

    Reaction time for anti-saccade, in which the gaze is directed to the position opposite to an illuminated target, shortens during maintenance of neck flexion. The present study applied transcranial magnetic stimulation (TMS) to the frontal oculomotor field, and investigated the effect of maintaining neck flexion on information processing time in the anti-saccade neural pathway before the frontal oculomotor field. The reaction time was measured with the chin resting on a stand ('chin-on' condition) and with voluntary maintenance of neck flexion ('chin-off' condition) at 80% maximal neck flexion angle, with and without TMS. The TMS timing producing the longest prolongation of the reaction time was first roughly identified for 10 ms intervals from 0 to 180 ms after the target presentation. Thereafter, TMS timing was set finely at 2 ms intervals from -20 to +20 ms of the 10 ms step that produced the longest prolongation. The reaction time without TMS was significantly shorter (21.9 ms) for the chin-off (235.9 ± 14.9 ms) than for the chin-on (257.5 ± 17.1 ms) condition. Furthermore, TMS timing producing maximal prolongation of the reaction time was significantly earlier (18.6 ms) for the chin-off than the chin-on condition. The ratio of the forward shift in TMS timing relative to the reduction in reaction time was 87.8%. We confirmed that information processing time in the anti-saccade neural pathway before the frontal oculomotor field shortened while neck flexion was maintained, and that this reduction time accounted for approximately 88% of the shortening of reaction time.

  2. 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)

  3. 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…

  4. The United States Humanitarian Demining Program: Civil-Military Relations in Humanitarian Demining

    DTIC Science & Technology

    2015-05-23

    Roland Paris and Timothy D. Sisk, eds., The Dilemmas of Statebuilding: Confronting the Contradictions of Postwar Peace Operations ( Milton Park Abingdon...Timothy D. Sisk, eds. The Dilemmas of Statebuilding: Confronting the Contradictions of Postwar Peace Operations. Milton Park Abingdon Oxon

  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. 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…

  7. 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,…

  8. Musical Hunger: A Philosophical Testimonial of Miseducation

    ERIC Educational Resources Information Center

    Laird, Susan

    2009-01-01

    Reflecting upon Simone Weil's conception of beauty as food, this essay proposes musical hunger as a metaphoric way of understanding a particular species of "cultural miseducation" as conceived by Jane Roland Martin, that disadvantages children musically and perhaps therefore also spiritually. It examines such musical miseducation with regard to an…

  9. 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…

  10. 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)

  11. New Inosine and Guanosine Analogs as Inhibitors of Parasitic Infections.

    DTIC Science & Technology

    1985-11-30

    include Security Clasification ) New Enosine and Guanosine Analogs as Inhibitors of Parasitic Infections 12. PERSONAL AUTHOR(S) Roland K. Robins...a Cary Model 15 spectrophotometer. Elemental analyses were performed by Robertson Labs, Florham Park, NJ. Thin-layer chromatography (TLC) was run on

  12. 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…

  13. 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…

  14. 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.…

  15. 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…

  16. MX Systems Environmental Programs Scoping Summary.

    DTIC Science & Technology

    1980-04-14

    Phillips Roland Westergard, Director of Conservation and Nat. Res. Robert Hill, State Planning Coordinator James Wadhams, Director of Department of...Health Bureau, Children’s Serv. STATE TIDUSTRIAL ATIRNEY Bureau, Community Serv. Bureau, Consumer Protect. SECRETARY OF STATE Bureau, Dental Health...operations abide by environmental laws? C. What quantities will be required during construction of the following building materialls ? How and when

  17. 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)

  18. 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…

  19. Weapons Acquisition. Processes of Selected Foreign Government.

    DTIC Science & Technology

    1986-02-01

    period from 1977 to 1985: (1) 5.56mm calibre assault rifle. (2) Milan and Hot antitank weapon systems. (3) Roland ground-to-air weapon system. (4) AMX 30...and standardization edicts . Awards and penalties are laid on accordingly. (7/17, 13/20) The ministries stand apart from one another in the same way

  20. Impacts of the Fleet Response Plan on Surface Combatant Maintenance

    DTIC Science & Technology

    2006-01-01

    Plan on Surface Combatant Maintenance Roland J. Yardley, Raj Raman, Jessie Riposo, James Chiesa, John F. Schank Prepared for the United States Navy...Command; CDR Robert Johnson, Kevin Alexander, and LCDR Tony Glover of Commander, Naval Surface Forces Atlantic; and CAPT Larry Olsen and Steve Reynolds

  1. 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…

  2. An Old-Growth Longleaf Standing South Alabama: Study of an Endangered Ecosystem

    Treesearch

    John S. Kush; Ralph S. Meldahl

    1998-01-01

    Roland Harper, The State Geographer for Alabama in the first half of this century, wrote in his Economic Botany of Alabama (1928) "longleaf pine might have once been the most abundant tree in the United States and was certainly the most abundant tree in Alabama." He went on to say "longleaf had more uses than any other tree in North America, if not the...

  3. 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…

  4. Building Peace in Warlord Situations

    DTIC Science & Technology

    2002-06-01

    Allie and Roland Wright, “Sierra Leone,” in Comprehending and Mastering African Conflicts, ed. Adebayo Adedeji (New York: Zed Book Ltd, 1999), 185. 45...102 Abass Bundu, Democracy by Force? (United States: Universal Publishers, 2001) 63. 54 document reports of atrocities and

  5. Bullying among Students and Its Consequences on Health

    ERIC Educational Resources Information Center

    Houbre, Barbara; Tarquinio, Cyril; Thuillier, Isabelle; Hergott, Emmanuelle

    2006-01-01

    Violence among students at school is an ever-growing problem. Bullying can be defined as all forms of repeated physical or mental violence performed by an individual on another person who is not capable of defending him/herself (Roland & Idsoe, 2001). The three studies conducted here reveal some of the characteristics and implications of this type…

  6. 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…

  7. 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…

  8. Low Efficiency Control Measures for Jet Engine Test Cells

    DTIC Science & Technology

    1978-09-01

    replacement cost was based upon filter cost data ob- tained from Mr. Roland Langlois, Owens - Corning Fiberglas Inc., Technical Cen- ter, Granville, Ohio. 3...Torgeson’s theory was used to calculate the collection efficiency of three commercial glass fiber filter media samples obtained from Owens - Corning Fiberglas

  9. The use of prolotherapy in the sacroiliac joint.

    PubMed

    Cusi, M; Saunders, J; Hungerford, B; Wisbey-Roth, T; Lucas, P; Wilson, S

    2010-02-01

    In this study the effectiveness of prolotherapy in the treatment of deficient load transfer of the sacroiliac joint (SIJ) was determined. A prospective descriptive study. Authors' private practice. 25 patients who consented to treatment and attended for at least one follow-up visit and assessment. From April 2004 to July 2007. Three injections of hypertonic dextrose solution into the dorsal interosseous ligament of the affected SIJ, under CT control, 6 weeks apart. Quebec Back Pain Disability Scale, Roland-Morris 24, Roland-Morris 24 Multiform questionnaires and clinical examination by two authors independently. All patients included in this study attended at least one follow-up visit at 3, 12 or 24 months.. The number of patients at follow-up decreased at 12 and 24 months. Functional questionnaires demonstrated significant improvements for those followed-up at 3, 12 and 24 months (p<0.05). Clinical scores showed significant improvement from commencement to 3, 12 and 24 months (p<0.001). This descriptive study of prolotherapy in private practice has shown positive clinical outcomes for the 76% of patients who attended the 3-month follow-up visit (76% at 12 months and 32% at 24 months). Similar results were found in the questionnaires (Quebec Back Pain Disability Scale, Roland-Morris 24 and Roland-Morris 24 Multiform questionnaires) at 3, 12 and 24 months.

  10. Action-perception connection and the cortical mu rhythm.

    PubMed

    Hari, Riitta

    2006-01-01

    The rolandic mu rhythm consists of two main frequency components: one around 10 Hz and the other around 20 Hz. Reactivity of the mu rhythm, especially its motor cortex 20-Hz component, provides an illuminating window to the involvement of the human sensorimotor system in the loop that connects action and perception with the environment.

  11. Das Sprachlabor und der Audiovisuelle Unterricht (The Language Laboratory and Audiovisual Instruction).

    ERIC Educational Resources Information Center

    Freudenstein, Reinhold, Ed.

    Four articles, written in German, discuss such aspects of the language laboratory as: teaching pronunciation in the laboratory (Heinrich Schrand), the dummy-element in transformational grammar (Helmut Heuer), testing in the language laboratory (Kenneth S. Leigh), and language laboratory work in Finland (Roland Freihoff). Nine book reviews on…

  12. 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…

  13. Laser Cartridge Concept Development Study

    DTIC Science & Technology

    1976-04-01

    particular, the tech- nical guidance provided by Mr. Roland Wright, and the helpful suggestions from Dr. Rudolph Buser are acknowledged. 11 TABLE OF...Blossom Trail Orlando, FL 32804 Martin Marietta Aerospace Orlando Division P.O. Box 5837 Orlando, FL 32805 Bendix Research Labs ATTN: G. E. Busch

  14. An Analysis of the Distinction between Deep and Shallow Expert Systems

    DTIC Science & Technology

    1989-08-01

    DISTRIBUTION LIST [ILLINOIS/WILKINS] Dr. Hayir Hirsh Mr. Roland Jones Dr. Wendy Kellogg Dr. Gary Kies. Dept. of Computer Sci.nc. Mitre Corp., K-1I0 IBM...Department of Statiotics for the Mathematical Sciences Newark, D 19711 R-I28 Moore School Chapel Hill, NC 27114 Busch Campus Philadelphia, PA 19104

  15. 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…

  16. 1. Photocopy of photograph (original in the the possession of ...

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

    1. Photocopy of photograph (original in the the possession of Roland Champoux, Montpelier, Vermont) Photographer unknown, ca. 1876-1880 Note: Negative measures 8' x 5 1/4', but is printed on 8' x 10' paper GENERAL VIEW OF SOUTH (FRONT) AND WEST FACADE (LEFT) BEFORE THE ADDITION OF MANSARD ROOF - Pavilion Hotel, State Street, Montpelier, Washington County, VT

  17. Determination of the Conductivity and Permittivity of the Surface Material and Monitoring of the Outgassing Activity of the Cometary Nucleus

    NASA Astrophysics Data System (ADS)

    Grard, R.; Laakso, H.; Hamelin, M.; Goldstein, B.; Winterhalter, D.; Kochan, H.; Ulamec, S.

    1996-03-01

    The Permittivity Probe (PP) is one component of the Surface Electrical, Seismic and Acoustic Monitoring Experiments (SESAME). This suite of instruments is presently under consideration as a payload element of Roland, a cometary lander, which is part of the ESA corner stone mission, ROSETTA.

  18. 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…

  19. Numerical Investigation of Dynamic Freefall Penetrometers in Soft Cohesive Marine Sediments Using a Finite Difference Approach

    DTIC Science & Technology

    2010-06-01

    Murff, and others, “Collapse loads for a cylinder embedded in trench in cohesive soil,” International Journal of Geomechanics , vol. 5, 2005, p. 320...International Journal for Numerical and Analytical Methods in Geomechanics , vol. 6, 1982, pp. 47-76. [16] P. Mott, J. Dorgan, and C. Roland, “The

  20. The Role of the Buffalo Soldiers during the Spanish-American War

    DTIC Science & Technology

    1992-01-01

    Albert M. Jones Timothy Breen Berry F. Taylor Thomas P. Ledgwidge John Mulisn Harman H. Wynkoop James M. Dean Edward C. Waller G. Roland Fortescue... Leary 0. Hunt, LeRoy R. Houston, Robert C. James, Frank W. Johnson, Charles Johnson, Harry F. Johnson, Lewis L. Kehoe, Michael J. Keim, Amandus

  1. Antibodies to Squalene in US Navy Persian Gulf War Veterans with Chronic Multisymptom Illness

    DTIC Science & Technology

    2009-01-01

    of the Gulf war: cross sectional study. BMJ 2000;320(May (7246)):1363–7 [see comment]. [30] Taylor DN, Sanchez JL, Smoak BL, DeFraites R. Helicobacter ... pylori infection in Desert Storm troops. Clin Infect Dis 1997;25(November (5)):979–82. [31] Haley RW, Hom J, Roland PS, BryanWW, Van Ness PC, Bonte FJ

  2. Musical Hunger: A Philosophical Testimonial of Miseducation

    ERIC Educational Resources Information Center

    Laird, Susan

    2009-01-01

    Reflecting upon Simone Weil's conception of beauty as food, this essay proposes musical hunger as a metaphoric way of understanding a particular species of "cultural miseducation" as conceived by Jane Roland Martin, that disadvantages children musically and perhaps therefore also spiritually. It examines such musical miseducation with regard to an…

  3. 75 FR 9028 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-26

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  4. 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…

  5. The Body of Persuasion: A Theory of the Enthymeme.

    ERIC Educational Resources Information Center

    Walker, Jeffrey

    1994-01-01

    Examines the primary and not exclusively Aristotelian sources from which a more adequate concept of the enthymeme can be derived. Considers the relevance of that concept to the analysis of modern discourse. Analyzes works by Martin Luther King, Jr., and Roland Barthes as examples of enthymeming. (HB)

  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…

  7. 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…

  8. Revision Hope: Writing Disruption in Composition Studies.

    ERIC Educational Resources Information Center

    Jung, Julie

    1997-01-01

    Uses Roland Barthes's metaphor of the "punctum" to explore the transformative potential of disruptions. Argues that writing teachers have been trained to read disruption in texts and classrooms as "evidence of poor taste or failed pedagogy," but that disruptions delay closure and thereby create spaces wherein theories and…

  9. 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…

  10. 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.…

  11. Hermeneutic and Cultural Codes of S/Z: A Semiological Reading of James Joyce's "The Boarding House"

    ERIC Educational Resources Information Center

    Booryazadeh, Seyed Ali; Faghfori, Sohila; Shamsi, Habibe

    2014-01-01

    Roland Barthes as a fervent proponent of semiology believes that semiology is a branch of a comprehensive linguistics: it is the study of how language articulates the world. Semiotic codes, the paths of this articulation, accordingly underlie his attention. Barthes in a structural analysis of Balzac's "Sarrasine" in S/Z expounds five…

  12. A Semiotic Perspective on the Technical and Professional Writing Assignment.

    ERIC Educational Resources Information Center

    Westmoreland, Kay

    1995-01-01

    Uses central ideas from Roland Barthes's essays on connotative semiotics as a rationale for directing students in technical and professional writing classes to develop the critical reflex to analyze and then make judgments about the values implied by connotative systems. (SR)

  13. 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…

  14. Nouvelle Critique et dix-neuvieme siecle (New Criticism and the Nineteenth Century)

    ERIC Educational Resources Information Center

    Hytier, Jean

    1970-01-01

    Presents contrasting views of some French literary critics including Georges Poulet, Charles Mauron, Jean-Pierre Richard, Jean-Paul Weber, and Roland Barthes. Paper read at the Annual Meeting of the Modern Language Association of America (MLA) December 28, 1968 in New York, New York. (DS)

  15. "Fare from the Madding Crowd": The Lighter Side of Error in Student Writing.

    ERIC Educational Resources Information Center

    Vaughn, Gary; Wenner, Barbara

    1999-01-01

    Discusses two intriguing ways of explaining error in student writing--the work of Michel Foucault and the work of Roland Barthes. Describes in-class activities and essay assignments that use these perspectives to help students to reach improved understanding of error in writing. (SR)

  16. 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…

  17. 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…

  18. 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…

  19. 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…

  20. Flomaton Natural Area: A Living Museum for Longleaf Pine

    Treesearch

    John S. Kush

    1999-01-01

    Roland Harper, Alabama state geographer in the first half of this century, wrote in his Economic Botany of Alabama (1928). "Longleaf pine might have once been the most abundant tree in the United States and was certainly the most abundant tree in Alabama." He went on to say, "longleaf had more uses than any other tree in North America...

  1. 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,…

  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…

  3. A Semiotic Perspective on the Technical and Professional Writing Assignment.

    ERIC Educational Resources Information Center

    Westmoreland, Kay

    1995-01-01

    Uses central ideas from Roland Barthes's essays on connotative semiotics as a rationale for directing students in technical and professional writing classes to develop the critical reflex to analyze and then make judgments about the values implied by connotative systems. (SR)

  4. "Fare from the Madding Crowd": The Lighter Side of Error in Student Writing.

    ERIC Educational Resources Information Center

    Vaughn, Gary; Wenner, Barbara

    1999-01-01

    Discusses two intriguing ways of explaining error in student writing--the work of Michel Foucault and the work of Roland Barthes. Describes in-class activities and essay assignments that use these perspectives to help students to reach improved understanding of error in writing. (SR)

  5. 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…

  6. The Body of Persuasion: A Theory of the Enthymeme.

    ERIC Educational Resources Information Center

    Walker, Jeffrey

    1994-01-01

    Examines the primary and not exclusively Aristotelian sources from which a more adequate concept of the enthymeme can be derived. Considers the relevance of that concept to the analysis of modern discourse. Analyzes works by Martin Luther King, Jr., and Roland Barthes as examples of enthymeming. (HB)

  7. Nouvelle Critique et dix-neuvieme siecle (New Criticism and the Nineteenth Century)

    ERIC Educational Resources Information Center

    Hytier, Jean

    1970-01-01

    Presents contrasting views of some French literary critics including Georges Poulet, Charles Mauron, Jean-Pierre Richard, Jean-Paul Weber, and Roland Barthes. Paper read at the Annual Meeting of the Modern Language Association of America (MLA) December 28, 1968 in New York, New York. (DS)

  8. 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…

  9. Revision Hope: Writing Disruption in Composition Studies.

    ERIC Educational Resources Information Center

    Jung, Julie

    1997-01-01

    Uses Roland Barthes's metaphor of the "punctum" to explore the transformative potential of disruptions. Argues that writing teachers have been trained to read disruption in texts and classrooms as "evidence of poor taste or failed pedagogy," but that disruptions delay closure and thereby create spaces wherein theories and…

  10. 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…

  11. 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…

  12. Strategies of Organizational Survival: The Case of a National Program for Educational Reform

    ERIC Educational Resources Information Center

    Corwin, Ronald G.

    1972-01-01

    Describes a series of strategies that enabled a nationwide government program, the Teacher Corps, to survive, despite formidable external and internal constraints, and suggests some general patterns that may apply to other cases. Comments by Richard A. Graham and Roland L. Warren. (Author)

  13. Thymic emigration: conveyor belts or lucky dips?

    PubMed

    Scollay, R; Godfrey, D I

    1995-06-01

    The thymic medulla has always seemed a rather uncomplicated compartment, simply storing mature thymocytes until they are exported to the peripheral lymphoid organs. However, as discussed here by Roland Scollay and Dale Godfrey, a careful look at recent data suggests that events in the medulla may be more complex and protracted than previously thought.

  14. 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…

  15. Geomorphic Mapping Pool 7 - Upper Mississippi River Basin

    DTIC Science & Technology

    1987-10-05

    in the conversion of raw organic material to humus , the mixing of organic and inorganic material, the creation of channels, and the vertical...Mississippi River, Quaternary Research 20: 165-176. GALLAGHER, JAMES P., ROLAND RODELL, and KATHERINE STEVENSON , 1982, The 1980-1982 LaCrosse Area

  16. Simulation Development for Silo Test Program (STP). Volume 2. Detonation Characterization of NA/NP (Aqueous Nitric Acid/Nitropropane) and NPN (Nitropropane Nitrate).

    DTIC Science & Technology

    1984-03-31

    for advice and information on NPN; and Dr. Roland Franzen, Ford Laboratories, Inc., for discussions on NPN. Within SRI, we thank Mr. Darwin R. Henley...for constructing the targets, Mr. Daniel F. Walter for operating electronic instrumentation, Mssrs. Hugh E. Hanna, George S. Cartwright , and Kennard E

  17. PSynUTC - Evaluation of a High-Precision Time Synchronization Prototype System for Ethernet LANs

    DTIC Science & Technology

    2002-12-01

    now been taken over by our spin-off company Oregano Systems (http://www.oregano.at). Roland Höller, Nikolaus Kerö Department of Computer Technology... Oregano Systems, will demonstrate the feasibility of GPS time distribution and time synchronization in Ethernet- based LANs with a worst-case

  18. 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…

  19. 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…

  20. How We Teach Is What We Teach.

    ERIC Educational Resources Information Center

    Elmore, Richard F.

    1989-01-01

    C. Roland Christensen's 13 sessions on "Teaching and the Case Method" are discussed. This collection of cases and readings on teaching with the case method in graduate professional programs and in the liberal arts is a statement of the rationale, methods, and recurring problems of the case method. It has much to say, also, about teaching and…

  1. 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…

  2. 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…

  3. The need for mentoplasty following rhinoplasty.

    PubMed

    Ozkurt, F E; Akdag, M; Yorgancilar, E; Baylan, M Yildirim

    2014-01-01

    Rhinoplasty is the most common facial plastic surgery procedure. The appearance of the face must be considered as a whole to achieve the best results, but assessment of the chin is often overlooked. The aim of this paper was to determine the need for mentoplasty after rhinoplasty. Adobe Photoshop CS6 (Adobe Systems, San Jose, CA) was used to analyze 200 consecutive rhinoplasty patients, 170 of whom were included in this study. We used Silver and Agarwal's method for assessment of the chin. A total of 170 profile photographs were analyzed. Of these patients, 58.2% (n = 99) had normal chins, 40% (n = 68) had small chins (microgenia), and 1.8% (n = 3) had over-projection. There were no statistically significant differences between men and women. Chin projection is an important component of facial euphony. Approximately half of the rhinoplasty patients we assessed would also benefit from mentoplasty. Surgeons that perform rhinoplasty should discuss mentoplasty with their patients to achieve the best results.

  4. Scent marking, dominance and serum testosterone levels in male domestic rabbits.

    PubMed

    Arteaga, Lourdes; Bautista, Amando; Martínez-Gómez, Margarita; Nicolás, Leticia; Hudson, Robyn

    2008-06-09

    The European rabbit, both in its wild and domesticated forms, has been a pioneer species in the study of mammalian chemical communication, and illustrates well the difficulty of understanding the functional significance of these often complex signals. Here we investigate the performance of one of the rabbit's most conspicuous chemical signaling behaviors, chin marking (chinning), and the hypothesis that this expresses social dominance. In tests of 21 chinchilla-strain sexually mature males we predicted 1) that animals would show marked and stable individual differences in the frequency of chinning, 2) that these differences would correlate with behaviors associated with dominance such as intrasexual mounting, and 3) that individual differences in the frequency of chinning and dominance-related behaviors would correlate with individual differences in a commonly used physiological indicator of dominance, concentration of serum testosterone. Supporting these predictions and consistent with previous reports, animals showed large and stable individual differences in the frequency of chinning which correlated with the behavioral indicators of dominance and less strongly, with serum testosterone. As our animals had been kept in single cages and without direct contact with other males since weaning, these findings raise the question as to how and when during development such differences among individuals arise. We are currently investigating the possible relation between pups' intrauterine position, postnatal competition among littermates for milk and thermally advantageous positions in the litter huddle, and later differences in indicators of dominance such as those reported here.

  5. 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. Copyright © 2016 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  6. Study of Aerosol/Cloud/Radiation Interactions over the ARM SGP Site

    SciTech Connect

    Chuang, C; Chin, S

    2006-03-14

    While considerable advances in the understanding of atmospheric processes and feedbacks in the climate system have led to a better representation of these mechanisms in general circulation models (GCMs), the greatest uncertainty in predictability of future climate arises from clouds and their interactions with radiation. To explore this uncertainty, cloud resolving model has been evolved as one of the main tools for understanding and testing cloud feedback processes in climate models, whereas the indirect effects of aerosols are closely linked with cloud feedback processes. In this study we incorporated an existing parameterization of cloud drop concentration (Chuang et al., 2002a) together with aerosol prediction from a global chemistry/aerosol model (IMPACT) (Rotman et al., 2004; Chuang et al., 2002b; Chuang et al., 2005) into LLNL cloud resolving model (Chin, 1994; Chin et al., 1995; Chin and Wilhelmson, 1998) to investigate the effects of aerosols on cloud/precipitation properties and the resulting radiation fields over the Southern Great Plains.

  7. Factor structure of the multidimensional orientation toward dying and death inventory among Hong Kong college students: a preliminary study.

    PubMed

    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 structures of the MODDI-F/ chin. The results showed that, identical to the German version, the MODDI-F/chin consisted of a 5-factor Fear domain and a 3-factor Acceptance domain. The fear of another person's dying was the weakest of the four factors in the Hong Kong sample but represented the first and strongest factor in the German sample of the original study. Although preliminary and not representative of mainland China, our results show that the factor structure of attitudes toward dying and death that had been established empirically with German people can be replicated with Chinese students of Hong Kong.

  8. Bone remodeling to correct maxillary deficiency after growth cessation

    PubMed Central

    Showkatbakhsh, Rahman; Ghassemi, Alireza; Gerressen, Marcus; Ghassemi, Mehrangiz; Jamilian, Abdolreza; Mohammad, Shadab; Pal, Uma S.

    2012-01-01

    This case report presents a 22-year-old girl with class III malocclusion due to maxillary deficiency. The patient was referred for presurgical orthodontics; however, she rejected the surgery. This case was treated by means of Tongue appliance and slow palatal expansion, followed by lower fixed appliance, reverse chin cup, and upper fixed appliance. Tongue appliance and slow palatal expansion were used at the beginning of the treatment. After 6 months, reverse chin cup and lower fixed appliance were added. Six months later reverse chin cup was removed and upper fixed appliance was mounted. Positive overbite and over jet were achieved after 24 months of active treatment. Nasolabial angle also showed improvement. Nonsurgical treatment of adult class III patients is a difficult procedure; however, this patient was treated nonsurgically. PMID:23833499

  9. 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

  10. KSC-04PD-1423

    NASA Technical Reports Server (NTRS)

    2004-01-01

    KENNEDY SPACE CENTER, FLA. Workers in the Orbiter Processing Facility prepare the Reinforced Carbon-Carbon (RCC) chin panel to install on Discovery. The chin panel is the smile-shaped section of RCC directly below the nose cap that provides a thermal barrier during re-entry. The nose cap, with chin panel, was removed from the vehicle in the summer of 2003 and returned to the vendor, where it underwent numerous forms of Non-Destructive Evaluation. These tests included X-ray, ultrasound and eddy current to ensure its structural integrity prior to reinstallation. Discovery is designated as the Return to Flight vehicle for mission STS-114, no earlier than March 2005.

  11. KSC-04PD-1424

    NASA Technical Reports Server (NTRS)

    2004-01-01

    KENNEDY SPACE CENTER, FLA. Workers in the Orbiter Processing Facility lift the Reinforced Carbon-Carbon (RCC) chin panel to install on Discovery. The chin panel is the smile-shaped section of RCC directly below the nose cap that provides a thermal barrier during re-entry. The nose cap, with chin panel, was removed from the vehicle in the summer of 2003 and returned to the vendor, where it underwent numerous forms of Non-Destructive Evaluation. These tests included X-ray, ultrasound and eddy current to ensure its structural integrity prior to reinstallation. Discovery is designated as the Return to Flight vehicle for mission STS-114, no earlier than March 2005.

  12. KSC-04PD-1425

    NASA Technical Reports Server (NTRS)

    2004-01-01

    KENNEDY SPACE CENTER, FLA. Workers in the Orbiter Processing Facility lift the Reinforced Carbon-Carbon (RCC) chin panel into place on Discovery. The chin panel is the smile-shaped section of RCC directly below the nose cap that provides a thermal barrier during re-entry. The nose cap, with chin panel, was removed from the vehicle in the summer of 2003 and returned to the vendor, where it underwent numerous forms of Non-Destructive Evaluation. These tests included X-ray, ultrasound and eddy current to ensure its structural integrity prior to reinstallation. Discovery is designated as the Return to Flight vehicle for mission STS-114, no earlier than March 2005.

  13. KSC-04PD-1426

    NASA Technical Reports Server (NTRS)

    2004-01-01

    KENNEDY SPACE CENTER, FLA. Workers in the Orbiter Processing Facility check the placement of the Reinforced Carbon-Carbon (RCC) chin panel on Discovery. . The chin panel is the smile- shaped section of RCC directly below the nose cap that provides a thermal barrier during re-entry. The nose cap, with chin panel, was removed from the vehicle in the summer of 2003 and returned to the vendor, where it underwent numerous forms of Non- Destructive Evaluation. These tests included X-ray, ultrasound and eddy current to ensure its structural integrity prior to reinstallation. Discovery is designated as the Return to Flight vehicle for mission STS-114, no earlier than March 2005.

  14. KSC-04PD-1427

    NASA Technical Reports Server (NTRS)

    2004-01-01

    KENNEDY SPACE CENTER, FLA. Workers in the Orbiter Processing Facility check the placement of the Reinforced Carbon-Carbon chin panel on Discovery. The chin panel is the smile-shaped section of RCC directly below the nose cap that provides a thermal barrier during re-entry. The nose cap, with chin panel, was removed from the vehicle in the summer of 2003 and returned to the vendor, where it underwent numerous forms of Non-Destructive Evaluation. These tests included X-ray, ultrasound and eddy current to ensure its structural integrity prior to reinstallation. Discovery is designated as the Return to Flight vehicle for mission STS-114, no earlier than March 2005.

  15. [Removal of the sagging of the tissues in the submental area].

    PubMed

    Ezrokhin, V M

    1995-01-01

    Twenty out of 100 patients operated on to remove skin excess on the face and neck had slackening tissue under the chin. Based on published data and their findings, the authors developed operations to remove slackening tissue under the chin and carried out such operations in 64 patients. Isolated lipectomy failed to bring about good results in cases when there were indications for removal of skin excess on the face neck (10 patients). Simultaneous removal of skin excess on the face and lipectomy helped attain good results in 50 patients. The operation is possible in patients with a low position of the sublingual bone, although the results are not so good. Lipectomy in the area under the chin is recommended as a method supplementing operation for removal of skin excess on the face and neck.

  16. 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

  17. Regulation of the Prostate Cancer Tumor Microenvironment

    DTIC Science & Technology

    2015-04-01

    Science 317(5834), 124-127 (2007). 7. Naugler, W.E., Sakurai, T., Kim , S., Maeda, S., Kim , K., Elsharkawy, A.M., Karin, M. Gender disparity in liver...Elizabeth M. Peek ,1 Wang Song,2 Hanwei Zhang,3 Jiaoti Huang,4 and Arnold I. Chin1,3,5,6* 1Molecular Biology Institute, UCLA, Los Angeles, California...M. Peek and Wang Song made an equal contribution to this manuscript. The authors have nothing to disclose. Correspondence to: Arnold I. Chin, MD

  18. Uncovering the CH-53E Doppler Myth

    DTIC Science & Technology

    2008-01-01

    shift, of the transmitted energy as it returns to the receiver. Similar to the "radar guns " used by police officers to 9 r Figure 3. TRNS, PSN, HVR HNVS...aircraft is in an unwanted roll that can manifest in to dangerous lateral drifting. A visual scan through the lower " chin bubble" allows the pilots to...instrument and gages coupled with the copilot’s and aircrew’s verbal "calls" completes the teamwork needed to maneuver and land the aircraft safely. Chin

  19. Prolene mesh mentoplasty.

    PubMed

    Ilhan, A Emre; Kayabasoglu, Gurkan; Kazikdas, K Cagdas; Goksel, Abdulkadir

    2011-04-01

    Augmentation mentoplasty is a cosmetic surgical procedure to correct chin retrusion or microgenia which usually requires placement of an alloplastic material over the pogonion, and which results in increased chin projection and a more aesthetically balanced facial profile. Polypropylene mesh is easy to purchase, widely available in a general hospital and most commonly used by general surgeons. In this series of 192 patients, we wanted to demonstrate our simple mentoplasty technique using prolene mesh that can easily be combined with a rhinoplasty procedure, with possible causes of infection and the rationale for using prolene mesh in such procedures.

  20. 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.

  1. KSC-04PD-1428

    NASA Technical Reports Server (NTRS)

    2004-01-01

    KENNEDY SPACE CENTER, FLA. Workers in the Orbiter Processing Facility complete the installation of the Reinforced Carbon- Carbon panel on Discovery. The chin panel is the smile-shaped section of RCC directly below the nose cap that provides a thermal barrier during re-entry. The nose cap, with chin panel, was removed from the vehicle in the summer of 2003 and returned to the vendor, where it underwent numerous forms of Non- Destructive Evaluation. These tests included X-ray, ultrasound and eddy current to ensure its structural integrity prior to reinstallation. Discovery is designated as the Return to Flight vehicle for mission STS-114, no earlier than March 2005.

  2. Naval Biodynamics Laboratory 1993 Command History

    DTIC Science & Technology

    1993-01-01

    Institute for Perception, TNO Soesterberg, The Netherlands LCDR Jeff Blevins Navy Foreign Liaison Office, Washington, D.C. Mr. James Bost NAVSEA 05D7...Naval Sea Systems Command, Washington, D.C. Captain T. Jones Naval Health Research Center, San Diego, CA Dr. Jeff Keuhn University of Oklahoma, Norman, OK...National Defence Research Establishment firsoirden, Sweden Mr. Roland Palmer Coastal Systems Station, Panama City, FL Mr. Bill Patten University of Oklahoma

  3. Descriptive Summaries of the Research Development Test & Evaluation Army Appropriation FY 1983. Supporting Data FY 1983, Budget Estimate Submitted to Congress February 1982. Volume II.

    DTIC Science & Technology

    1982-02-01

    in such systems as the Medium Antitank Assault Wespon (DRAGON) night tracker (Program Element (PE 2.37.2t.A), the Night Observation Device Long Range...The increase In FY82 funding supports a classified pro- gram . The increase In funding for FY83 results from funding procurement of additional Forward...weather CHAVARRAL demr ,stration pro- gram to provide a hedge against ROLAND technical and funding problems. The program was successfully complet.d

  4. Metabolism, Mass Spectral Analysis and Mode of Action of Trichothecene Mycotoxins

    DTIC Science & Technology

    1988-10-12

    AD --------------- METABOLISM, MASS SPECTRAL ANALYSIS AND MODE OF ACTION OF TRICHOTHECENE MYCOTOXINS W ANNUAL REPORT 12 OCTOBER 1988 CHESTER J...Trichothecene Mycotoxins 12. PERSONAL AUTHOR(S) . Chester J. Mirocha, Robert J. Pawlosky, and Roland Gunther 13a. TYPE OF REPORT 13b. TIME COVERED 14...SUBJECT TERMS (Continue on reverse if necessary and identify by block number) FIELD GROUP SUB-GROUP RA 1, Mycotoxins , T-2 toxin, Mass spectra, metabolism 06

  5. Midwave Infrared Imaging Fourier Transform Spectrometry of Combustion Plumes

    DTIC Science & Technology

    2009-09-01

    an amplitude-splitting interferometer, its most common form being that of a Michel - son interferometer. A Michelson interferometer consists of a lens...with variations in source intensity, as opposed to interference modulation due to the Michel - 53 Figure 18. Rake of six k-type thermocouples to make...imaging sensor”. volume 6398, 63980T. SPIE, 2006. [23] Flores-Jardines, Edgar, Klaus Schäfer, Roland Harig, Peter Rusch, and Michel Grutter

  6. The International Legal Ramifications of United States Counter-Proliferation Strategy: Problems and Prospects

    DTIC Science & Technology

    1997-01-01

    following individuals for their support throughout this sometimes tortuous process: Lynne Wurzburg, Esq., Dr. William G.D. Frederick , Roland Young...Esq., Ms. Maria Kelly, and Sarah A. Wagman, Esq. I also must express my deepest gratitude to Mrs. Geralyn Frederick , whose strength throughout her...Presiden t F.W. De Klerk admitted that South Africa at one time possessed a small number of nuclear warheads; however, according to De Klerk , South

  7. 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

  8. TSA - a Two Scale Approximation for Wind-generated Ocean Surface Waves

    DTIC Science & Technology

    2013-01-01

    aquaculture , coastal transportation. Better forecasts, with longer lead-time, and better accuracy can help reduce potential risk to these economic...developments, due to ocean waves. Quality of Life Development of the coastal zone involves residences, recreation, fisheries, aquaculture , coastal...Babanin, J. F. Filipot, R. Magne, A. Roland, A. van der Westhuysen, P. Queffeulou, J. M. Lefevre, L . Aouf, and F. Collard (2010), Semiempirical

  9. Performance Analysis of Live-Virtual-Constructive and Distributed Virtual Simulations: Defining Requirements in Terms of Temporal Consistency

    DTIC Science & Technology

    2009-12-01

    owned and not proprietary. It is managed by the SIMAF facility located at WPAFB, OH. 115 Bibliography BCE+06. Dean Bowley, Paul Comeau, Roland Edwards... Paul J. Hiniker, Geoff Howes, Richard A. Kass, Paul Labbé, Chris Morris, Rick Nunes-Vaz, Jon Vaughan, Sophie Villeneuve, Mike Wahl, Kendall Wheaton...Narayanan. Design & Imple- mentation of Virtual and Constructive Simulations Using OpenEaagles. Linus Publications, 2009. 119 RJL+97. Maria Roussos

  10. 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

  11. The Independent European Force: Costs of Independence

    DTIC Science & Technology

    1993-01-01

    Western European Union (WEU). Advocates of this approach see the European effort as complementary to NATO and oriented toward coalitional activities...Board Spot) Seaport ofdebarkation USAF United States Air Force WEU Western European Union 1.Introduction Background Th amunceoMentAS I in May 1991...Europe-has sparked criticism within Europe. Speaking at a miseting of the Western European Union (WEU), French Foreign Minister Roland Dumnas argued that

  12. Functional magnetic resonance imaging before and after ventriculoperitoneal shunting for hydrocephalus--case report.

    PubMed

    Fukuhara, T; Luciano, M G; Liu, J Z; Yue, G H

    2001-12-01

    A 70-year-old man with hydrocephalus was examined with functional magnetic resonance (fMR) imaging before and after ventriculoperitoneal shunting. Preoperatively, activation by right hand exercise revealed only a slight signal increase in the peri-rolandic area. However, 3 months after ventriculoperitoneal shunting, a significant signal increase was observed. fMR imaging may detect activity-related improvement of cerebral blood flow responses in patients with hydrocephalus after surgical treatment.

  13. Tactile Sensing and Control in Humans and Robotic/Teleoperated Systems

    DTIC Science & Technology

    1992-08-04

    Applied Sciences, Harvard University Cambridge, MA 02138 in collaboration with: Prof. Roland Johansson Dr. Goran Westling Dr. Benoni Edin Dept. of...focused on sensor-based grasp force control. This work was initiated in February, 1991, during a visit by Edin, Westling and Howe at Stanford...Suggestions from Edin and Westling resulted in reformulations of the robotic skin and improved slip detection strategies. A modified version of the

  14. 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.

  15. 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.

  16. Cortical gamma-oscillations modulated by listening and overt repetition of phonemes

    PubMed Central

    Fukuda, Miho; Rothermel, Robert; Juhász, Csaba; Nishida, Masaaki; Sood, Sandeep; Asano, Eishi

    2009-01-01

    SUMMARY Both superior temporal gyrus and inferior Rolandic area have been reported to be involved in perception and production of speech in humans. Here, we determined how these cortical structures were activated by listening and subsequent overt articulation of syllables, by measuring event-related gamma-oscillations as quantitative measures of cortical activation. Fifteen subjects were presented an auditory syllable consisting of either ‘fee [fi:]’, ‘faa [fα:]’, ‘hee [hi:]’, or ‘haa [hα:]’, and were instructed to overtly repeat each given syllable. Gamma-oscillations in the superior temporal gyrus were highly augmented during syllable-presentation, least augmented at the onset of syllable-articulation, and again highly augmented following syllable-articulation. Gamma-oscillations were augmented in the inferior Rolandic area prior to and during syllable-articulation with the onset and peak occurring earlier in the left side. Subsets of the inferior Rolandic sites, more frequently on the left side, showed differential gamma-augmentation elicited by articulation of phoneme [f] more than [h] or phoneme [i:] more than [α:]. Our observations suggest that the superior temporal gyrus may be active when externally-presented or articulated auditory stimuli are present, and may be minimally active when articulation is about to be initiated. Our novel observation of phoneme-specific differential gamma-augmentation in the inferior Rolandic area may be partially attributed to the mouth position during phoneme-articulation. Our observations support the hypothesis that positioning of the mouth to articulate phonemes is predominantly driven and/or monitored by the primary sensorimotor area on the left side. PMID:19874898

  17. 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.

  18. 3D Printed Fluidic Hardware for DNA Assembly

    DTIC Science & Technology

    2015-04-10

    initiatives such as the FabLab Foundation10. Access to digital fabrication tools and open electronics, such as Arduino and Raspberry Pi, enables access to...mill (Roland DG Corporation, Hamamatsu, Japan) running Arduino firmware. A user interface (Supplementary Figure 9) enabled the user to control the...A3909 stepper motor driver, were soldered onto the milled circuit board (Supplementary Figure 8). Custom Arduino -based firmware was written to take

  19. Concurrent validity of questionnaire and performance-based disability measurements in patients with chronic nonspecific low back pain.

    PubMed

    Reneman, Michiel F; Jorritsma, Wim; Schellekens, Jan M H; Göeken, Ludwig N H

    2002-09-01

    This study aimed to investigate the concurrent validity of two approaches to disability measurement in patients with chronic nonspecific low back pain (CLBP). It was hypothesized that if both are measuring the same construct, the instruments would lead to similar disability results and would correlate strongly (r > 0.75). The study compared the results of self-reported and performance-based measures of disability in 64 consecutive patients with CLBP. Participants mean age was 38.0 years, the mean duration of the current episode of back pain 9.9 months, and 90% were off work due to CLBP. The self-report measures used were: the Roland Disability Questionnaire (Roland); the Oswestry Disability Questionnaire (Oswestry); and the Quebec Back Pain Disability Questionnaire (Quebec). Performance was measured using the Isernhagen Work Systems Functional Capacity Evaluation (FCE). The mean scores from the self-report measure are as follows: Roland 13.5 (scale 0-24), Oswestry 28.2 (scale 0-100), Quebec 37.8 (scale 0-100) consistent with moderate to severe disability. In contrast the results from the performance-based measures suggested that the subjects should be able to work at a physical intensity level of moderate to heavy. Little to moderate correlation was observed between the self-report and performance-based measures (Spearman rank correlations: Roland-FCE (-0.20), p > 0.05; Oswestry-FCE (-0.52), p < 0.01; Quebec-FCE (-0.50), p < 0.01). Results are interpreted to suggest that both performance-based and self-report measures of disability should be used in order to obtain a comprehensive picture of the disability in patients with CLBP.

  20. Aircraft Survivability. Spring 2009

    DTIC Science & Technology

    2009-01-01

    Surviving an Aircraft Crash with Airbag Restraintsby Thomas Barth Inflatable restraint solutions have improved the survivability of commercial...Surviving an Aircraft Crash with Airbag Restraints by Thomas Barth Transport Aircraft Interiors The AmSafe Aviation Airbag entered service on commercial...all night.” Keithley also noted that, in his early days at BRL, Walt teamed up with a group of like-minded innovators, including Jim Foulk, Roland

  1. Neuromagnetic Investigation of Workload and Attention.

    DTIC Science & Technology

    1986-06-24

    known to include large numbers of . . .¢ neurons in the posterior bank of the central sulcus (the Rolandic fissure), and they are likely to be...Subsequent surgery -- ERP researchers are generally convinced that revealed the presence of small tumors. Barth et P300 is related to certain kinds of...sensitive than the rf 16. Sutherling W. Barth DS. Beattv V Mlainetic fields of SQUID used in our earlier systems. SQUID son- epileptic spike foci

  2. The Future of American Power: Energy and National Security

    DTIC Science & Technology

    2010-02-17

    that 1.5 million electric cars could be on US highways by 2015, rising to over 10 million by 2020. 36 12 China and India recognize the impending...clean-fleet-articles/top- electric - cars -2010/. Andrews-Speed, Philip, Xuanli Lia, and and Roland Dannreuther. The Strategic Implications of...top- electric - cars -2010/. 37 Wong, Julian and Andrew Light, “China Begins Its Transition to a Clean-Energy Economy,” Washington, DC: Center for

  3. Cortical gamma-oscillations modulated by listening and overt repetition of phonemes.

    PubMed

    Fukuda, Miho; Rothermel, Robert; Juhász, Csaba; Nishida, Masaaki; Sood, Sandeep; Asano, Eishi

    2010-02-01

    Both superior temporal gyrus and inferior Rolandic area have been reported to be involved in perception and production of speech in humans. Here, we determined how these cortical structures were activated by listening and subsequent overt articulation of syllables, by measuring event-related gamma-oscillations as quantitative measures of cortical activation. Fifteen subjects were presented an auditory syllable consisting of either "fee [fi:]," "faa [falpha:]," "hee [hi:]," or "haa [halpha:]," and were instructed to overtly repeat each given syllable. Gamma-oscillations in the superior temporal gyrus were highly augmented during syllable-presentation, least augmented at the onset of syllable-articulation, and again highly augmented following syllable-articulation. Gamma-oscillations were augmented in the inferior Rolandic area prior to and during syllable-articulation with the onset and peak occurring earlier in the left side. Subsets of the inferior Rolandic sites, more frequently on the left side, showed differential gamma-augmentation elicited by articulation of phoneme [f] more than [h] or phoneme [i:] more than [alpha:]. Our observations suggest that the superior temporal gyrus may be active when externally presented or articulated auditory stimuli are present, and may be minimally active when articulation is about to be initiated. Our novel observation of phoneme-specific differential gamma-augmentation in the inferior Rolandic area may be partially attributed to the mouth position during phoneme-articulation. Our observations support the hypothesis that positioning of the mouth to articulate phonemes is predominantly driven and/or monitored by the primary sensorimotor area on the left side. Copyright (c) 2009 Elsevier Inc. All rights reserved.

  4. Al Qaeda’s Millenarian Doctrine: Implications for US Policy

    DTIC Science & Technology

    2010-03-15

    Alfred A. Knopf, 2006), 47. 15 Roland Jacquard, In the Name of Osama Bin Laden: Global Terrorism and the Bin Laden Brotherhood (Durham, Duke...C8591-988.xml. 24 Lawrence Wright, The Looming Tower: Al Qaeda and the Road to 9/11, (New York, Alfred A. Knopf, 2006), 37. 25 Mark R. Reiff...Barracks, PA: US Army War College, 2010), 362. 35 Paul Kennedy and William I. Hitchcock , From War to Peace: Altered Strategic Lascapes in the Twentieth

  5. The United States Air Force in Southeast Asia, 1961-1973

    DTIC Science & Technology

    1977-01-01

    William Greenhalgh J. C. Hopkins William B. Karstetter Robert R. Kritt Doris A. Krudener Kenneth L. Patchin Ralph A. Rowley Jacob Van Staaveren Bernard T...220 XIII. CONTROL OF STRIKE AND DEFENSE FORCES ................ 223 by Roland W. Doty, Jr. and Doris A. Krudener...power. Friendly casual- ties totaled seven wounded. A few days later Richard M. Nixon During the same period-between 8 defeated Hubert H. Humphrey in the

  6. Extending Depot Length and Intervals for DDG 51 Class Ships: Examining the 72 Month Operational Cycle

    DTIC Science & Technology

    2016-01-01

    Extending Depot Length and Intervals for DDG-51-Class Ships Examining the 72- Month Operational Cycle Roland J. Yardley, Daniel Tremblay, Brian...to a 36- month Optimized Fleet Response Plan operational cycle. However, with the constrained budget environment, the Navy is evaluating how best to...Class Ships: The 72- Month Cycle removal of the crew during the execution of maintenance to mitigate costs in this employment approach. This research

  7. 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…

  8. 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…

  9. 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…

  10. Cognitive Models for Learning to Control Dynamic Systems

    DTIC Science & Technology

    2008-09-26

    for Composite Hypotheses”, Technical Report 94.4, Institute for Applications of Mathematics and Informatics, Milan, 1994. [24] I.V. Pavlov , “Sequential...CHANG Yuan-Chin Ivan , Application of sequential interval estimation to adaptive mastery testing, 2005, vol. 70, no4, pp. 685-713. [30] A. Tartakovsky

  11. 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...

  12. 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)

  13. Differential Amplifier Circuits Based on Carbon Nanotube Field Effect Transistors (CNTFETs)

    DTIC Science & Technology

    2010-04-01

    Differential Amplifier Circuits Based on Carbon Nanotube Field Effect Transistors ( CNTFETs ) by Matthew Chin and Dr. Stephen Kilpatrick...20783-1197 ARL-TR-5151 April 2010 Differential Amplifier Circuits Based on Carbon Nanotube Field Effect Transistors ( CNTFETs ) Dr...AND SUBTITLE Differential Amplifier Circuits Based on Carbon Nanotube Field Effect Transistors ( CNTFETs ) 5a. CONTRACT NUMBER 5b. GRANT NUMBER

  14. 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...

  15. 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 ...

  16. Communication by olfactory signals in rabbits: its role in reproduction.

    PubMed

    Melo, Angel I; González-Mariscal, Gabriela

    2010-01-01

    Rabbits use a variety of olfactory signals to transmit information related with reproduction. Such cues are produced in skin glands (submandibular, anal, Harder's, lachrymal, preputial) and the mammary gland-nipple complex. Some signals are transmitted by active behaviors, for example, chin-marking, urination, and defecation, while others are transmitted passively (e.g., mammary pheromone (MP) and inguinal gland secretions). We show that sex steroids regulate: chinning frequency and the chin gland's size, weight and secretory activity in bucks and does by acting on specific brain regions or on the chin gland, respectively. The "mammary pheromone," identified in milk as 2-methyl-but-2-enal, is essential for guiding the pups to the nipples, but its origin (mammary gland, ventral skin, nipple) remains to be determined. Estradiol, progesterone, and prolactin regulate the emission of an olfactory cue that also triggers nipple-search behavior in the pups, but its chemical identity and relation with the MP are unclear. Copyright © 2010 Elsevier Inc. All rights reserved.

  17. 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,…

  18. 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. Three…

  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. STS-53 Pilot Cabana adjusts CCA during JSC launch emergency egress training

    NASA Technical Reports Server (NTRS)

    1992-01-01

    STS-53 Discovery, Orbiter Vehicle (OV) 103, Pilot Robert D. Cabana, wearing launch and entry suit (LES), adjusts communications carrier assembly (CCA) chin strap and microphones before donning his helmet. Cabana is preparing for launch emergency egress bailout procedures in JSC's Mockup and Integration Laboratory (MAIL) Bldg 9NE.

  1. The effect of bone displacement operations on facial soft tissues.

    PubMed

    Habib, Ali; Hisham, Ahmed

    2013-01-01

    A novel biomechanical model for face soft tissue (skin, mucosa, and muscles) is introduced to investigate the effect of mandible and chin bone displacement on the overall appearance of the patient's face. Nonlinear FE analysis is applied to the model and the results obtained are used to help surgeons to decide the amount of displacement required.

  2. Mass Atrocities Prevention: The Role and Performance of the United States Army

    DTIC Science & Technology

    2015-06-12

    atrocity prevention. Other activities that provide extraordinary educational opportunities for select cadets are a two-week staff ride activity across...Problem from Hell. New York: HarperCollins Publishers. Sewall, Sarah, Dwight Raymond, and Sally Chin. 2010. Mass Atrocity Response Operations (MARO

  3. Detection Of Malware Collusion With Static Dependence Analysis On Inter APP Communication

    DTIC Science & Technology

    2016-12-08

    Adrienne Porter Felt, Kate Greenwood, and David Wagner . “Analyzing inter-application communication in Android.”, 9th international conference on...Conference on Computer and Communications Security, pp. 735-746. ACM, 2016. [17]. Kantola, David, Erika Chin, Warren He, and David Wagner . “Reducing

  4. Geomorphic classification of rivers

    Treesearch

    J. M. Buffington; D. R. Montgomery

    2013-01-01

    Over the last several decades, environmental legislation and a growing awareness of historical human disturbance to rivers worldwide (Schumm, 1977; Collins et al., 2003; Surian and Rinaldi, 2003; Nilsson et al., 2005; Chin, 2006; Walter and Merritts, 2008) have fostered unprecedented collaboration among scientists, land managers, and stakeholders to better understand,...

  5. 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

  6. 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…

  7. Facial Feature Extraction Based on Wavelet Transform

    NASA Astrophysics Data System (ADS)

    Hung, Nguyen Viet

    Facial feature extraction is one of the most important processes in face recognition, expression recognition and face detection. The aims of facial feature extraction are eye location, shape of eyes, eye brow, mouth, head boundary, face boundary, chin and so on. The purpose of this paper is to develop an automatic facial feature extraction system, which is able to identify the eye location, the detailed shape of eyes and mouth, chin and inner boundary from facial images. This system not only extracts the location information of the eyes, but also estimates four important points in each eye, which helps us to rebuild the eye shape. To model mouth shape, mouth extraction gives us both mouth location and two corners of mouth, top and bottom lips. From inner boundary we obtain and chin, we have face boundary. Based on wavelet features, we can reduce the noise from the input image and detect edge information. In order to extract eyes, mouth, inner boundary, we combine wavelet features and facial character to design these algorithms for finding midpoint, eye's coordinates, four important eye's points, mouth's coordinates, four important mouth's points, chin coordinate and then inner boundary. The developed system is tested on Yale Faces and Pedagogy student's faces.

  8. 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)].

  9. Efficacy of Traditional Chinese Medicine in Treatment and Prophylaxis of Radiation-Induced Oral Mucositis in Patients Receiving Radiotherapy: A Randomized Controlled Trial.

    PubMed

    Wang, Cong; Wang, Peiguo; Ouyang, Huaqiang; Wang, Jing; Sun, Lining; Li, Yanwei; Liu, Dongying; Jiang, Zhansheng; Wang, Bin; Pan, Zhanyu

    2017-09-01

    To estimate the efficacy of traditional Chinese medicine (Chining decoction, CHIN) for radiation-induced oral mucositis in patients with head and neck cancer. From May 2014 to December 2015, 70 consecutive patients were randomly assigned to receive CHIN (treatment group) or recombinant human epidermal growth factor (rhEGF) spray (control group) at a 1:1 ratio. CHIN was administered to treatment group from the first day of radiotherapy until the completion of radiotherapy. Simultaneously, the rhEGF spray was administered to control group on the oral mucosa of irradiated area. The clinical benefit was determined by gradation of mucositis (Common Terminology Criteria for Adverse Events v4.0), oral pain, and xerostomia (visual analysis scale) for each week during radiotherapy. Body mass index was evaluated before and after radiotherapy. Patients in the treatment group had prominent remission of oral pain and grade of mucositis on each observing point compared with those in control group ( P < .01). Xerostomia was decreased notably in treatment group compared with control group ( P < .01). Body mass index in the treatment group exhibited advantage over control group after radiotherapy, but there was no statistical significance (19.8 ± 3.26 vs 18.8 ± 2.5 kg/m(2), P = .153, >.05). CHIN presented an obvious advantage in preventing radiation-induced oral mucositis compared with rhEGF spray.

  10. 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.

  11. 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,…

  12. 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.

  13. Biennial Guidance Test Symposium (15th) Held in Holloman Air Force Base, New Mexico on 24-26 September 1991. Volume 1

    DTIC Science & Technology

    1991-09-01

    1982. 2. G.H. Chin, A. Cordova and E. Goldner, "Extended Envi- ronmental Performance of Attitude and Heading Reference Grade Fiber Optic Rotation...Guidance and Controls’ LN--!00 System for the LH program and the Apache liicopter guid- The design and performance of Litton’s second gen- ance

  14. 78 FR 68151 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-13

    ... ADAMS LAWRENCE BRUCE AIERS RODGER CHARLES AL RAIS AHMED SALIM ALBRECHT-FENNER SOPHIE VIOLETTE ALEXANDER... RAVI CHILLAK ALEXANDER......... CONNELL CHIN SUNG SUP CHIU JENNIFER WENDY CHOE SUNG JAY CHOI HYUN JIN... AMALIA AMY HONEGGER HEINRICH DAVID HONG HEI-WEON HOOD JAMES ALEXANDER STUART TATE HOOGE...

  15. 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 ...

  16. 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…

  17. 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…

  18. Comparing Three Jet Rates with and without Hadronic Rindler Horizon

    NASA Astrophysics Data System (ADS)

    Ghaffary, Tooraj

    2017-03-01

    Recently, some researchers, (Sepehri and Shoorvazi Chin. Phys. Lett. 30(2), 021301, [2013]), have considered the effect of Rindler horizon on three jet rate. This paper confirms their results and by comparing usual models with this new model for different energies, shows that regarding Rindler horizon gives us the results which more close to experimental data respect to usual models.

  19. 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…

  20. 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...

  1. Quantum kung fu

    NASA Astrophysics Data System (ADS)

    Flicker, Felix

    2014-07-01

    If someone puts you in an armlock, what should you do? If you happen to be a martial artist well-practised in the art of joint manipulation, or chin na, you will know the answer already: there is one simple move that will allow you to turn the tables on your aggressor, leaving them on the wrong end of a throw.

  2. 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…

  3. 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)...

  4. 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,…

  5. Medical Surveillance Monthly Report (MSMR). Volume 8, Number 8, November/December 2002

    DTIC Science & Technology

    2002-12-01

    2002 Legionella pneumophila is a gram-negative bacterium that causes two clinically and epidemio- logically distinct illnesses. Legionnaires ’ disease is...17th edition. ed. Chin J. American Public Health Association. Washington, DC; 2000:281- 3. 2. Legionella pneumophila ( Legionnaires disease ...1998-July 2002.........................................................8 Legionnaires ’ disease in a laboratory worker at a medical treatment facility

  6. Designing an Educational Game, Simulation or Workshop: A Change Theory Perspective.

    ERIC Educational Resources Information Center

    Cryer, Patricia

    1986-01-01

    Presents theoretical perspectives of change of Benne, Chin, Lewin, and Rogers, and draws out strategies that designers of games, simulations, and workshops may find useful. Highlights include rational/empirical, normative/re-educative, and power/coercive strategies; Lewin's force-field model; and Rogers' stage model. (MBR)

  7. 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...

  8. Mitobolites: the elixir of life.

    PubMed

    Katewa, Subhash D; Khanna, Amit; Kapahi, Pankaj

    2014-07-01

    One of the biggest challenges in biology is to understand how mitochondria influence aging and age-related diseases. Chin et al. (2014) reveal how a mitochondrial metabolite (mitobolite) inhibits mitochondrial ATPase and extends lifespan by mimicking dietary restriction in worms. Copyright © 2014 Elsevier Inc. All rights reserved.

  9. Linear Lichen Planopilaris of the Face: Case Report and Review.

    PubMed

    Asz-Sigall, Daniel; González-de-Cossio-Hernández, Ana Cecilia; Rodríguez-Lobato, Erika; Ortega-Springall, María Fernanda; Vega-Memije, María Elisa; Arenas Guzmán, Roberto

    2016-09-01

    We describe the case of a 45-year-old man who presented with a 5-month history of unilateral pruritic linear erythematous papules and atrophy on the chin and mandibular area. Dermoscopy showed areas of cicatricial alopecia with absence of follicular openings, perifollicular erythema and pigment. Lichen planopilaris of the face is a rare variant with only 13 cases reported in the literature.

  10. 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.

  11. 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.

  12. 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…

  13. 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…

  14. China’s Pursuit of a Blue-Water Navy

    DTIC Science & Technology

    2009-01-01

    understood as comprising both a naval clement ;IS well as ;1 commercial element. 7 This is critical. in that as a nation’s mercantile power expands its naval...pmvcr. Furthermore, Chin~l possesses signiricant COLlSt lines, deep \\\\!~ller h;lrhors, ,\\! lei viahle ports that malch favorahly \\vilh Mahan’s

  15. [Pay attention to the fine management of the diagnosis and treatment of glaucoma].

    PubMed

    Wang, N L

    2016-06-11

    During the clinical practice of glaucoma, the fine management is needed in patient's eye history taking, clinical material organization, the standardization, normalization, advantage complement of clinical examination and compliance evaluation of anti-glaucoma medication. The fine management of the glaucoma diagnosis and treatment will enable the greatest extent of visual protection.(Chin J Ophthalmol, 2016, 52: 401-403).

  16. NEW BEDFORD, PUBLIC MEETING AGENDA AND ...

    EPA Pesticide Factsheets

    2012-06-28

    ... ii]ll iiiumiLi n raipo i: t:<:n:l ::i: chin .Uitniiil: [[iiiini ... r M«iL»«uri, lire™ HIM 'si Ksu: iragimHK-itt iUito gun, .... ... ll:iy tJtun ii^ratinciiniiEi I: or t:.l:i

  17. North Korea’s Nuclear Weapons Development and Diplomacy

    DTIC Science & Technology

    2010-01-05

    earlier than Bosworth; he testified that North Korean Foreign Ministry official, Lee Gun , stated that a peace agreement...September 24, 2008; and Yi Chong- chin , “DPRK official at energy aid talks comments on nuclear verification issue,” Yonhap News Agency, September 19...complete denuclearization. If these 51 Choe Sang- hun , “Tensions rise on Korean peninsula,” New

  18. 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)

  19. 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,…

  20. 76 FR 77012 - Notice of Inventory Completion: U.S. Department of the Interior, National Park Service, Organ...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-09

    ...; and Tohono O'odham Nation of Arizona. The Cocopah Tribe of Arizona; Colorado River Indian Tribes of the Colorado River Indian Reservation, Arizona and California; Fort Mojave Indian Tribe of Arizona... the Maricopa (Ak Chin) Indian Reservation, Arizona; Cocopah Tribe of Arizona; Colorado River...

  1. 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

    2014-08-21

    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. 

  2. 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.

  3. 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…

  4. 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...

  5. 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...

  6. 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…

  7. STS-105 Countdown Status Briefing

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Bruce Buckingham, NASA Public Affairs, introduces Steve Altemus, NASA Test Director, and Glenn Chin, STS-105 Mission Manager, in this STS-105 prelaunch press conference. An overview is given of the launch countdown, payload status, and weather forecast. The men then answer questions from the press.

  8. STS-105 Countdown Status Briefing

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Joel Wells, NASA Public Affairs, introduces Steve Altemus, NASA Test Director, Glenn Chin, STS-105 Mission Manager, and Ed Priselac, Shuttle Weather Officer, in this STS-105 prelaunch press conference. An overview is given of the launch countdown, payload status (Leonardo Multipurpose Logistics Module), and weather forecast. The men then answer questions from the press.

  9. United States Air Force Research Initiation Program. 1985 Technical Report. Volume 1

    DTIC Science & Technology

    1987-04-01

    Transfer 760-0M6-018 Dr. Barry N. Haack Dr. Je-chin Han 36 Detector Placement and Particle Size Interpretation for a Multiple Ratio Single...Jensen, A. R. (1982). Reaction time and psychometric g. In H. J. Eysenck (Ed.), ^4 model for intelligence. Heidelberg: Springer-Verlag Kanfer, R

  10. Supplement to the History of United States Army Engineer District Far East 1976 to 1977

    DTIC Science & Technology

    1979-03-01

    most items, and the attendant delays in construction. The following extract from a letter by the District Engineer, vividly illustrates the...Jr, FED District Engineer, to Noh, Chin Slk, ROK Chairman, Ministry of Commerce and Industry, 6 October 1976, and 11 Octoper 1976. -21- signed

  11. 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.

  12. Pulmonary veno-occlusive disease

    MedlinePlus

    ... disorder. Alternative Names Pulmonary vaso-occlusive disease Images Respiratory system References Chin K, Channick RN. Pulmonary hypertension. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine . 6th ed. Philadelphia, PA: Elsevier Saunders; 2016: ...

  13. Object-Oriented Parallel Processing with Mentat

    DTIC Science & Technology

    2001-01-01

    ogy, 1993. 10 R. Chin and S. Chanson , “Distributed Object-Based Programming Systems,” ACM Computing Surveys, pp. 91-127, vol. 23, no. 1, March., 1991...SCCS 42c, NPAC, Syracuse Uni- versity, Syracuse, NY. 15 A. S. Grimshaw, W. A. Wulf, J. C. French , A.C. Weaver, and Paul Reynolds Jr. “Legion: The Next

  14. [Reconstruction of the mandibular symphysis using a revascularized free flap of the scapula. Surgical technic].

    PubMed

    Mayot, D; Perrin, C; Lindas, P; Dron, K

    1993-01-01

    In cases of surgically removed mandibular symphysis malignancies, the bone and mouth floor were reconstructed using osteo-musculo-cutaneous flaps. In our experience, the latter provide the best results. Removed in dorsal decubitus, they allow floor replacement. During the dissection of the tumor site, we also preserve labial and chin structures, which favours a good restoration of phonation and swallowing.

  15. 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...

  16. Does Postural Rigidity Decrease during REM Sleep without Atonia in Parkinson Disease?

    PubMed

    Arnaldi, Dario; Latimier, Alice; Leu-Semenescu, Smaranda; De Carli, Fabrizio; Vidailhet, Marie; Arnulf, Isabelle

    2016-06-15

    Rigidity is a muscle hypertonia typical of Parkinson disease (PD), whereas rapid eye movement (REM) sleep behavior disorder (RBD) is characterized by abnormally increased muscle tone during REM sleep (REM sleep without atonia) and enacting dream behaviors. Because movements are not bradykinetic during RBD in patients with PD, we investigated whether the background, wake postural rigidity is attenuated during REM sleep without atonia, in absence of movement. The amplitude of levator menti (postural muscle) electromyographic activity during relaxed evening wakefulness (considered as reference) and sleep (N2, N3, atonic REM sleep, and quiet REM sleep without atonia) was measured in 20 patients with PD (with and without RBD), 10 patients with idiopathic RBD patients and 10 healthy subjects. The chin tone amplitude progressively decreased from wake to N2, N3, and atonic REM sleep in the four groups, but the highest amplitude was observed in PD patients with RBD during atonic REM sleep. Furthermore, chin muscle tone amplitude did not attenuate from wake to REM sleep without atonia in patients with both PD and RBD but dramatically attenuated (by 40% on average) in patients with idiopathic RBD. The high amplitude of chin muscle tone in PD with RBD (but not in idiopathic RBD) during REM sleep with and without atonia suggests that both PD-related hypertonia and RBD-related enhanced muscle tone coexist during REM sleep, together affecting chin muscle tone. Consequently, some rapid RBD movements likely start against a rigid postural tone. © 2016 American Academy of Sleep Medicine.

  17. Near Infrared Pulsed Light for Permanent Hair Reduction in Fitzpatrick Skin Types IV and V.

    PubMed

    Thacker, Pratik; Kumar, Pramod

    2016-01-01

    Excessive hair on the face is a significant cause for distress amongst women. Permanent hair reduction methods including lasers and pulsed light devices are increasingly being used. The aim of this study is to evaluate the efficacy and safety of near infrared pulsed light source for permanent hair reduction in women seeking treatment for excessive hair growth on the upper lip and chin. This was a prospective observational study done at a tertiary care hospital in South India. Women above 18 years of age were observed for six sittings of the treatment for excessive hair over the upper lip and chin using a near infrared intense pulsed light device. Efficacy was evaluated by measuring percentage hair reduction using digital photography. Further, efficacy amongst women with polycystic ovarian syndrome (PCOS) was compared with those without PCOS. Side effects were noted. Student's unpaired t-test using the software SPSS version 16. Percentage hair reduction at the end of 6 sittings in 24 women for the upper lip and chin was 52.87% and 73.81%, respectively. Out of the 24 women, 12 had PCOS and the difference in hair reduction in these women was statistically insignificant when compared to that observed in those without PCOS. Only two patients experienced side effects in the form of mild pain and discomfort. Intense pulsed light is a safe and efficacious tool for permanent hair reduction over the upper lip and chin, efficacy being similar in patients with or without PCOS.

  18. MICOM-Based Nowcast/Forecast for Coastal/Open Ocean Regions

    DTIC Science & Technology

    1999-09-30

    of Mi- ami is real-time forecasting of both Eulerian elds, such as temperature and ve- locity, and Lagrangian trajectories, data assimilation ... methods are being developed and evaluated (Chin et al., 1999). The ve primary components of this e ort are (i) MICOM/HYCOM, (ii) satellite-derived sea

  19. 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...

  20. The influence of resistance training experience on the between-day reliability of commonly used strength measures in male youth athletes.

    PubMed

    Weakley, Jonathon; Till, Kevin; Darrall-Jones, Joshua; Roe, Gregory; Phibbs, Padraic; Read, Dale; Jones, Ben

    2017-03-08

    The purpose of this study was to determine the between-day reliability of commonly used strength measures in male youth athletes, while considering resistance training experience. Data were collected on 25 male athletes over two testing sessions, with 72 hours rest between, for the 3RM front squat, chin up and bench press. Subjects were initially categorized by resistance training experience (inexperienced; 6-12 months, experienced; >2 years). The assessment of the between-day reliability (coefficient of variation [CV%]) showed the front squat (experienced: 2.90%; inexperienced: 1.90%), chin up (experienced: 1.70%; inexperienced: 1.90%), and bench press (experienced: 4.50%; inexperienced: 2.40%) were all reliable measures of strength in both groups. Comparison between groups for the error of measurement for each exercise showed trivial differences. When both groups were combined, the CV% for the front squat, bench press, and chin up were 2.50%, 1.80%, and 3.70%, respectively. This study provides scientists and practitioners with the between-day reliability reference data to determine real and practical changes for strength in male youth athletes with different resistance training experience. Furthermore, this study demonstrates that 3RM front squat, chin up and bench press are reliable exercises to quantify strength in male youth athletes.

  1. Sporotrichosis on the face of a 7-year-old boy following a bicycle accident.

    PubMed

    Williams, Blake A; Jennings, Thomas A; Rushing, Erica C; Wirges, Marla; Russell, Brian E

    2013-01-01

    A 7-year-old boy presented with an annular verrucous plaque on the chin of 5 weeks duration. The lesion occurred after a bicycle accident and was unresponsive to antibiotics. Fungal culture grew Sporothrix schenckii. Sporotrichosis should be considered and fungal culture obtained whenever a nodule or plaque fails to respond to initial treatment.

  2. Soft tissue response to mandibular advancement using 3D CBCT scanning.

    PubMed

    Almeida, R C; Cevidanes, L H S; Carvalho, F A R; Motta, A T; Almeida, M A O; Styner, M; Turvey, T; Proffit, W R; Phillips, C

    2011-04-01

    This prospective longitudinal study assessed the 3D soft tissue changes following mandibular advancement surgery. Cranial base registration was performed for superimposition of virtual models built from cone beam computed tomography (CBCT) volumes. Displacements at the soft and hard tissue chin (n = 20), lower incisors and lower lip (n = 21) were computed for presurgery to splint removal (4-6-week surgical outcome), presurgery to 1 year postsurgery (1-year surgical outcome), and splint removal to 1 year postsurgery (postsurgical adaptation). Qualitative evaluations of color maps illustrated the surgical changes and postsurgical adaptations, but only the lower lip showed statistically significant postsurgical adaptations. Soft and hard tissue chin changes were significantly correlated for each of the intervals evaluated: presurgery to splint removal (r = 0.92), presurgery to 1 year postsurgery (r = 0.86), and splint removal to 1 year postsurgery (r = 0.77). A statistically significant correlation between lower incisor and lower lip was found only between presurgery and 1 year postsurgery (r = 0.55). At 1 year after surgery, 31% of the lower lip changes were explained by changes in the lower incisor position while 73% of the soft tissue chin changes were explained by the hard chin. This study suggests that 3D soft tissue response to mandibular advancement surgery is markedly variable.

  3. 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. Three…

  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. 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…

  6. Dropped head syndrome induced by chemoradiotherapy for nasopharyngeal carcinoma: a case report.

    PubMed

    Hashimoto, Yaichiro; Maebayashi, Katsuya; Izumi, Sachiko; Motegi, Atsushi; Mitsuhashi, Norio

    2012-11-01

    'Dropped head syndrome' (DHS) is characterized by severe weakness of the muscles of the back of the neck, resulting in chin-on-chest deformity. Dropped head syndrome induced by radiotherapy is very rare. We report a case of DHS following chemoradiotherapy with a total of 64.8 Gy in 36 fractions for nasopharyngeal carcinoma.

  7. 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…

  8. EFFECTS OF METAL COMPONENTS IN CONCENTRATED AMBIENT AIR PARTICLES ON PULMONARY INJURY

    EPA Science Inventory

    EFFECTS OF METAL COMPONENTS IN CONCENTRATED AMBIENT AIR PARTICLES ON PULMONARY INJURY. Yuh-Chin Huang, Jackie Stonehuerner, Jackie Carter, Andrew J. Ghio, Robert B. Devlin. NHEERL, US EPA, RTP, NC.
    The mechanisms for cardiopulmonary morbidity associated with exposure to air po...

  9. 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."

  10. HOW to Identify and Control Sapsucker Injury on Trees

    Treesearch

    Michael E. Ostry; Thomas H. Nicholls

    1976-01-01

    The yellow-bellied sapsucker (Sphyrapicus varius), a member of the woodpecker family, is a migratory bird whose summer breeding range includes the Lakes States region. The identifying field markings of adult birds are a black crescent on the breast, pale yellow belly, white wing stripe, and a crimson crown. The male also has a crimson chin and throat, distinguishing...

  11. Controlled cervical extension osteotomy for ankylosing spondylitis utilizing the Jackson operating table: technical note.

    PubMed

    Chin, Kingsley R; Ahn, Jaimo

    2007-08-01

    Technical note. To demonstrate a controlled extension osteotomy technique of the cervical spine in a prone position and using the head elevator mechanism on the Jackson operating table to correct a chin-on-chest deformity in a patient with ankylosing spondylitis. Catastrophic cord injury causing quadriplegia and death has been associated with correction of chin-on-chest deformity in patients with ankylosing spondylitis. Manual control of spinal column motion during and after osteoclasis or osteotomy can be difficult, inexact, and anxiety inducing. A 45-year-old woman with ankylosing spondylitis and severe chin-on-chest deformity underwent a posterior C7 pedicle subtraction osteotomy, deformity correction, and instrumented fusion in a prone position on the Jackson operating table. By using the elevator mechanism attached to the head of the operating table and Mayfield tongs, the patient's cervicothoracic junction was placed into extension by over 30 degrees in controlled increments. We present a technique for controlled extension osteotomy correction of chin-on-chest deformity in a prone position. Use of the operating table mechanism in conjunction with a closing-wedge osteotomy diminishes the risk of translation, decreases risk of air embolus associated with a sitting position, and promotes greater opportunity for fusion through the osteotomy, and the stability allows for placement of modern instrumentation.

  12. EC89-0016-20

    NASA Image and Video Library

    1989-01-19

    This photo depicts the AFTI F-16 in the configuration used midway through the program. The sensor pods were added to the fuselage, but the chin canards remained in place. Painted in non-standard gray tones, it carried Sidewinder air-to-air missles on its wingtips.

  13. 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…

  14. [Forum on tissue expansion. Repair of sequelae of facial burns by cervical cutaneous expansion].

    PubMed

    Foyatier, J L; Comparin, J P; Latarjet, J; Delay, E; Spitalier, P; Masson, C L

    1993-02-01

    Burn scars of the lower part of the face are a difficult problem in plastic surgery. Full thickness skin graft or local flaps usually give poor cosmetic result. Over the last 5 years, we used 24 skin expanders in the neck area to cover burn scars of the chin and jaw. Discussion of the method and 4 cases are reported.

  15. Simulation of Geometric Effects on Double-Gate Field Emission Devices

    DTIC Science & Technology

    2000-07-01

    and Tsung-Yu Yang Department of Electronic Engineering I-Shou University Ta-Hsu Hsiang , Kaohsiung County, Taiwan, R.O.C. ABSTRACT We report a study...1997. 3. Chi-Chang Wang, Jiin- Chuan , Chin-Ming Huang, IVMC󈨤, pp. 557, 1996. 4. Xieqing Zhu and Eric Munro, J. Van. Sci. Technol. B, 7, no 6, pp. 1862

  16. 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…

  17. 42 CFR 84.1130 - Respirators; description.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 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) Air...

  18. 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) Air...

  19. 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) Air...

  20. 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) Air...