WorldWideScience

Sample records for repeated chair rise

  1. Rising from a chair. Influence of age and chair design.

    Science.gov (United States)

    Wheeler, J; Woodward, C; Ucovich, R L; Perry, J; Walker, J M

    1985-01-01

    We studied the effect of age on the act of rising from a standard armchair in a younger (means = 24 years) and an older (means = 75 years) group of healthy adult women. Rising from a standard armchair and an armchair specially designed for comfort in sitting of the elderly was studied in the older group to determine the influence of the special chair. We used electrogoniometry, EMG, and videotape analysis to record the activity for both groups. The older group placed their feet farther back and showed greater vastus lateralis muscle activity than did the younger group to rise from the standard chair. These results suggest that rising from the standard chair was more difficult for the older than for the younger group. In the special chair, the older subjects showed even more vastus lateralis muscle activity, greater knee flexion, and greater trunk forward lean. Rising from the special chair, therefore, appeared to be more difficult than rising from a standard chair; this finding suggests that both comfort and function must be considered in chair selection for certain groups.

  2. Does physical exposure throughout working life influence chair-rise performance in midlife?

    DEFF Research Database (Denmark)

    Møller, Anne; Reventlow, Susanne; Hansen, Åse Marie

    2015-01-01

    OBJECTIVES: Our aim was to study associations between physical exposures throughout working life and physical function measured as chair-rise performance in midlife. METHODS: The Copenhagen Aging and Midlife Biobank (CAMB) provided data about employment and measures of physical function. Individual......-years and chair-rise performance (number of chair-rises in 30 s) were analysed in multivariate linear and non-linear regression models adjusted for covariates. RESULTS: Mean age among the 5095 participants was 59 years in both genders, and, on average, men achieved 21.58 (SD=5.60) and women 20.38 (SD=5.33) chair...... and confirmed the findings. CONCLUSIONS: Higher physical exposure throughout working life is associated with slightly poorer chair-rise performance. The associations between exposure and outcome were non-linear....

  3. Eldecalcitol improves chair-rising time in postmenopausal osteoporotic women treated with bisphosphonates

    Directory of Open Access Journals (Sweden)

    Iwamoto J

    2014-01-01

    Full Text Available Jun Iwamoto,1 Yoshihiro Sato21Institute for Integrated Sports Medicine, Keio University School of Medicine, Tokyo, Japan; 2Department of Neurology, Mitate Hospital, Fukuoka, JapanAbstract: An open-label randomized controlled trial was conducted to clarify the effect of eldecalcitol (ED on body balance and muscle power in postmenopausal osteoporotic women treated with bisphosphonates. A total of 106 postmenopausal women with osteoporosis (mean age 70.8 years were randomly divided into two groups (n=53 in each group: a bisphosphonate group (control group and a bisphosphonate plus ED group (ED group. Biochemical markers, unipedal standing time (body balance, and five-repetition chair-rising time (muscle power were evaluated. The duration of the study was 6 months. Ninety-six women who completed the trial were included in the subsequent analyses. At baseline, the age, body mass index, bone mass indices, bone turnover markers, unipedal standing time, and chair-rising time did not differ significantly between the two groups. During the 6-month treatment period, bone turnover markers decreased significantly from the baseline values similarly in the two groups. Although no significant improvement in the unipedal standing time was seen in the ED group, compared with the control group, the chair-rising time decreased significantly in the ED group compared with the control group. The present study showed that ED improved the chair-rising time in terms of muscle power in postmenopausal osteoporotic women treated with bisphosphonates.Keywords: osteoporosis, fall, vitamin D, muscle power, body balance

  4. Leg-extension strength and chair-rise performance in elderly women with Parkinson's disease.

    Science.gov (United States)

    Pääsuke, Mati; Ereline, Jaan; Gapeyeva, Helena; Joost, Kadri; Mõttus, Karin; Taba, Pille

    2004-10-01

    The lower extremity performance in elderly female patients with mild to moderate Parkinson's disease (PD; n = 12) and controls (n = 16) was compared. Isometric dynamometry and force-plate measurements were used. PD patients had lower (p leg-extension force (MF), BL isometric MF relative to body mass, and maximal rate of isometric force development than control participants. BL strength deficit was greater (p leg-extensor muscles. Reduced BL leg-extension strength might contribute to the difficulty of individuals with PD to rise from a chair.

  5. A simple semipaced 3-minute chair rise test for routine exercise tolerance testing in COPD

    Directory of Open Access Journals (Sweden)

    Aguilaniu B

    2014-09-01

    Full Text Available Bernard Aguilaniu,1,2 Hubert Roth,3 Jesus Gonzalez-Bermejo,4 Marie Jondot,5 Jocelyne Maitre,5 François Denis,6 Thomas Similowski4,7 1Medicine Faculty, Université Joseph Fourier, Grenoble, France; 2McGill University, Montreal, Canada; 3Centre de Recherche en Nutrition Humaine Rhône-Alpes, CHU Grenoble, France; 4Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, Respiratory and Intensive Care Medicine, Paris, France; 5Clinique Universitaire de Pneumologie, CHU Grenoble, France, Grenoble, France; 6Boehringer Ingelheim, 7Université Paris, Paris, France Abstract: The functional work capacity of chronic obstructive pulmonary disease (COPD patients is usually assessed with walk tests such as the 6-minute walk test (6MWT or the shuttle test. Because these exercise modalities require a controlled environment which limits their use by pulmonologists and severely restricts their use among general practitioners, different modalities of a short (1 minute or less sit-to-stand test were recently proposed. In this study, we evaluated a new modality of a semipaced 3-minute chair rise test (3CRT in 40 patients with COPD, and compared the reproducibility of physiological responses and symptoms during the 3CRT and their interchangeability with the 6MWT. The results demonstrate that physiological variables, heart rate, pulse oxygen saturation, work done, and symptoms (Borg dyspnea and fatigue scores, during the 3CRT were highly reproducible, and that the physiological responses and symptoms obtained during the 3CRT and the 6MWT were interchangeable for most patients. Moreover, these preliminary data suggest that patients able to perform more than 50 rises during 3 minutes had no significant disability. The simplicity and ease of execution of the 3CRT will facilitate the assessment of exercise symptoms and disability in COPD patients during routine consultations with pulmonologists and general practitioners, and will thus contribute

  6. How often should sitting and rising from a chair be evaluated in patients with Duchenne muscular dystrophy?

    Directory of Open Access Journals (Sweden)

    Michele Emy Hukuda

    Full Text Available ABSTRACT Objective To determine how often sitting/rising from a chair should be assessed in Duchenne muscular dystrophy (DMD patients to avoid redundant/missing data. Methods Sitting/rising from a chair was evaluated in 26 DMD children (5-12 yrs, in three-month intervals, over twelve months, with the Functional Evaluation Scale (domain sitting/rising from a chair. Scores were compared by effect sizes (ES and standardized response means (SRM (responsiveness analysis. Results Sit-to-stand showed low-to-moderate responsiveness in three-month intervals (ES:0.23-0.32; SRM:0.36-0.68, moderate-to-high responsiveness in six-month intervals (ES:0.52-0.65; SRM:0.76-1.28, high responsiveness at nine-month (ES:0.84-0.91; SRM:1.26-1.64 and twelve-month intervals (ES:1.27; SRM:1.48. Stand-to-sit showed low responsiveness in three-month intervals (ES:0.26-0.49; SRM:0.37-0.42, moderate responsiveness in six-month intervals (ES:0.50-0.78; SRM:0.56-0.71, high responsiveness in nine-month (ES:0.94-1.00; SRM:0.84-1.02 and twelve-month intervals (ES:1.13; SRM:1.52. Conclusion Six months or longer intervals for reassessment are indicated to evaluate sitting/standing from a chair in DMD patients.

  7. Self-reported chair-rise ability relates to stair-climbing readiness of total knee arthroplasty patients: a pilot study.

    Science.gov (United States)

    Nyland, John; Frost, Karen; Quesada, Peter; Angeli, Claudia; Swank, Ann; Topp, Robert; Malkani, Art L

    2007-01-01

    Following total knee arthroplasty (TKA), physical therapists must evaluate patient readiness to safely begin stair-climbing. Physical therapists might find self-reported chair-rise ability useful in determining stair-climbing readiness of patients. We grouped 31 subjects who were at approximately 3.6 weeks post-TKA by chair-rise ability (group 1 = "Because of my knee, I can only rise from a chair if I use my hands and arms to assist," group 2 = "I have pain when rising from the seated position, but it does not affect my ability to rise from the seated position," and group 3 = "My knee does not affect my ability to rise from a chair"). Next, we determined time of stair-climbing ascent and descent, number of chair rises in 30 seconds, isokinetic quadriceps femoris and hamstring muscle group strength, and self-reported knee function survey scores. Groups 3 and 2 descended stairs more quickly than group 1; group 3 displayed greater involved and noninvolved knee extensor torque per body weight than group 1 or 2 and had superior self-reported knee function scores than group 1. Patient perception of chair-rise ability at approximately 3.6 weeks post-TKA is useful in helping physical therapists determine patient readiness to safely begin stair-climbing.

  8. Coordination of strength exertion during the chair-rise movement in very old people

    NARCIS (Netherlands)

    Lindemann, Ulrich; Muche, Rainer; Stuber, Michael; Zijlstra, Wiebren; Hauer, Klaus; Becker, Clemens

    Background. Changes in performance of standing up from a chair have been related to measures of strength or power. However, the sit-to-stand (STS) transfer requires that the individual exerts forces with appropriate magnitude and timing. These coordinative aspects have received less attention. This

  9. The rise in carboxyhemoglobin from repeated pulmonary diffusing capacity tests.

    Science.gov (United States)

    Zavorsky, Gerald S

    2013-03-01

    The purpose of this study determined the rise in carboxyhemoglobin percentage (COHb) from repeated pulmonary diffusing capacity tests using 5 or 10s single breath-hold maneuvers. Five male and four female non-smokers [baseline COHb=1.2 (SD 0.5%)] performed repeated pulmonary diffusing capacity testing on two separate days. The days were randomized to either repeated 10s (0.28% CO), or 5s (0.28% CO, 55ppm NO) breath-hold maneuvers. Twenty-two 5s breath-hold maneuvers, each separated by 4min rest, raised COHb to 11.1 (1.4)% and minimally raised the methemoglobin percentage (METHb) by 0.3 (0.2)% to a value of 0.8 (0.2)%. After the 22nd test, pulmonary diffusing capacity for carbon monoxide (DLCO) was reduced by about 4mL/min/mmHg, equating to a 0.44% increase in COHb per 5s breath-hold maneuver and a concomitant 0.35mL/min/mmHg decrease in DLCO. Pulmonary diffusing capacity for nitric oxide (DLNO) was not altered after 22 tests. On another day, the 10s single breath-hold maneuver increased COHb by 0.64% per test, and reduced DLCO by 0.44mL/min/mmHg per test. In conclusion, 5s breath-hold maneuvers do not appreciably raise METHb or DLNO, and DLCO is only significantly reduced when COHb is at least 6%.

  10. Simple equations to predict concentric lower-body muscle power in older adults using the 30-second chair-rise test: a pilot study

    Directory of Open Access Journals (Sweden)

    Wesley N Smith

    2010-07-01

    Full Text Available Wesley N Smith1, Gianluca Del Rossi1, Jessica B Adams1, KZ Abderlarahman2, Shihab A Asfour2, Bernard A Roos1,3,4,5, Joseph F Signorile1,31Department of Exercise and Sport Sciences,2Department of Industrial Engineering, University of Miami, Coral Gables, FL, USA; 3Geriatric Research, Education, and Clinical Center, Bruce W Carter Department of Veterans Affairs Medical Center, Miami, FL, USA; 4Departments of Medicine and Neurology, University of Miami Miller School of Medicine, Miami, FL, USA; 5Stein Gerontological Institute, Miami Jewish Health Systems, Miami, FL, USAAbstract: Although muscle power is an important factor affecting independence in older adults, there is no inexpensive or convenient test to quantify power in this population. Therefore, this pilot study examined whether regression equations for evaluating muscle power in older adults could be derived from a simple chair-rise test. We collected data from a 30-second chair-rise test performed by fourteen older adults (76 ± 7.19 years. Average (AP and peak (PP power values were computed using data from force-platform and high-speed motion analyses. Using each participant’s body mass and the number of chair rises performed during the first 20 seconds of the 30-second trial, we developed multivariate linear regression equations to predict AP and PP. The values computed using these equations showed a significant linear correlation with the values derived from our force-platform and high-speed motion analyses (AP: R = 0.89; PP: R = 0.90; P < 0.01. Our results indicate that lower-body muscle power in fit older adults can be accurately evaluated using the data from the initial 20 seconds of a simple 30-second chair-rise test, which requires no special equipment, preparation, or setting.Keywords: instrumental activity of daily living, clinical test, elderly, chair-stand test, leg power

  11. Ambiguous chair

    DEFF Research Database (Denmark)

    Manelius, Anne-Mette

    2011-01-01

    Bidrag til gør-det-selv bog, hvor det beskrives i udførlige tegninger, hvordan man bygger sin egen 'Ambiguous Chair', en tekstilforskallet stol.......Bidrag til gør-det-selv bog, hvor det beskrives i udførlige tegninger, hvordan man bygger sin egen 'Ambiguous Chair', en tekstilforskallet stol....

  12. RISE

    DEFF Research Database (Denmark)

    Ortenzi, M.; Petrini, F.; Bontempi, F.

    2013-01-01

    This paper originates from a European research proposal entitled RISE (Resilient Infrastructures and Structures against Emergencies). In RISE the assessment of the resilience of an urban development is carried out within an effective theoretical framework in which the large scale urban built infr...

  13. RISE

    DEFF Research Database (Denmark)

    Ortenzi, M.; Petrini, F.; Bontempi, F.;

    2013-01-01

    This paper originates from a European research proposal entitled RISE (Resilient Infrastructures and Structures against Emergencies). In RISE the assessment of the resilience of an urban development is carried out within an effective theoretical framework in which the large scale urban built infr...

  14. CG Chair

    OpenAIRE

    Pedro, Catarina

    2013-01-01

    Neste relatório de estágio damos conta da nossa integração e actividades desenvolvidas e, mais especificamente, relativa ao projeto final da cadeira empilhavel denominada CG Chair. O estágio desenvolveu-se na empresa de mobiliário escolar e de escritório VS - Vereinigte Spezialmobelfabriken GmbH Co. KG, em Tauberbischöfsheim - Alemanha. É uma empresa que existe há 114 anos, domina o mercado mobiliário escolar na Europa e está a investir ainda no mobiliár...

  15. Chairing a Small Department.

    Science.gov (United States)

    Bowker, Lee H.; Lynch, David M.

    Ten management problems for chairs of small departments in small colleges are discussed, along with problem-solving strategies for these administrators. Serious disagreements within a small and intimate department may create a country club culture in which differences are smoothed over and the personal idiosyncrasies of individual members are…

  16. Resources Available to Department Chairs.

    Science.gov (United States)

    Lynch, David M.; Bowker, Lee H.

    Resources available to department chairs from the following sources are described: the department's discipline; the national higher education community; the local institution; and the chair's own skills, background, roles, and structural placement within the organization. The use of these resources to deal with common problems faced by chairs is…

  17. Primer for the Interim Chair

    Science.gov (United States)

    Soltys, Stephen M.

    2011-01-01

    Objective: Being successful in the role of an Interim Chair requires an approach to transitional leadership that is different from that of individuals filling the Chair role permanently. This article reviews pertinent literature on the topic. Method: The author reviewed the literature, cited pertinent articles, and supplemented with personal…

  18. Design: More than a cool chair

    DEFF Research Database (Denmark)

    Friis, Silje Alberthe Kamille; Austin, Robert; Sullivan, Erin

    2006-01-01

    Austin, R., Friis, K., Sullivan, E. 2006. Design: More than a cool chair. Boston: Harvard Business School Publishing.......Austin, R., Friis, K., Sullivan, E. 2006. Design: More than a cool chair. Boston: Harvard Business School Publishing....

  19. 21 CFR 890.3100 - Mechanical chair.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Mechanical chair. 890.3100 Section 890.3100 Food... DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices § 890.3100 Mechanical chair. (a) Identification. A mechanical chair is a manually operated device intended for medical purposes that is used...

  20. Robotic chair at steep and narrow stairways

    Science.gov (United States)

    Imazato, Masahiro; Yamaguchi, Masahiro; Moromugi, Shunji; Ishimatsu, Takakazu

    2007-12-01

    A robotic chair is developed to support mobility of elderly and disabled people living in the house where steep and narrow stairways are installed. In order to deal with such mobility problem the developed robotic chair has a compact original configuration. The robotic chair vertically moves by actuation of electric cylinders and horizontally moves by push-pull operation given by a care-giver. In order to navigate safely every action of the chair is checked by the operator. Up-and-down motions of the robotic chair on the stairway are executed through combinations of motor and cylinder actuations. Performance of the robotic chair was evaluated through two kinds of experiments. The excellent ability of the robotic chair could be confirmed through these experiments.

  1. Le parfum et la chair

    OpenAIRE

    Guérer, Annick Le

    2010-01-01

    De l’Antiquité jusqu’à l’orée du xixe siècle, le parfum reste profondément marqué par ses relations étroites avec la chair. Son histoire est celle d’une désincarnation qui a conduit à en faire un produit abstrait et un objet marketing. Cette désincarnation, au sens le plus propre du terme, touche le parfum lui-même lorsqu’il abandonne les produits animaux utilisés pour sa composition. Mais c’est aussi une désincarnation « fonctionnelle » dans la mesure où s’efface son rôle primordial dans la ...

  2. Performance Simulation of Solid Wood Chairs

    Directory of Open Access Journals (Sweden)

    Silviu NEMEŞ

    2014-03-01

    Full Text Available Chairs made of solid wood belong to a category which requires special attention due to its frequent structural stressing. This study proposes the identification through load simulation of those structural elements, which can potentially become vulnerable. In this way measures can be taken during the design process to avoid eventual drawbacks and appropriate solutions can be found. The chair types that were the subject of this analysis have a simple construction, being commonly used in various human activities, but also the sitting ergonomics were kept in mind. When determining their dimensions, standards, studies and existing research were followed. The chair types were chosen as follows: a chair without stretchers, one with lateral stretchers and a lounge chair. The wood species for which the study was made is Fraxinus excelsior – ash wood, which shows average mechanical performance when compared to other hardwoods preferred by chair manufacturers. Its properties were used for a further analysis. Identifying the areas of the chair structure which are stressed by the human body was necessary in order to simulate real-life conditions. The finite element method was used, with a dedicated software. The interpretation of results is able to prove the quality of the design process. The proposed methodology may be applicable also for more complex chair structures.

  3. Leading Learning: Science Departments and the Chair

    Science.gov (United States)

    Melville, Wayne; Campbell, Todd; Jones, Doug

    2016-01-01

    In this article, we have considered the role of the chair in leading the learning necessary for a department to become effective in the teaching and learning of science from a reformed perspective. We conceptualize the phrase "leading learning" to mean the chair's constitution of influence, power, and authority to intentionally impact…

  4. Axiology, the Subject and the Chair

    Science.gov (United States)

    Melville, Wayne; Campbell, Todd; Jones, Doug

    2017-08-01

    This article addresses two gaps in the literature related to science department chairs: the axiological relationship between the chair and science, the subject, and the perceptions of the chair with respect to teaching and learning within their departments. In this work, axiology is used to understand how the chair's values toward the subject influenced his own perceived capacity to lead learning within his department in a reformed discourse. A narrative inquiry methodology was used to consider the chair's experiences in the development of his identify over his life span in the form of two stories: (1) the relationship between the chair and science, the subject, and (2) the perceptions of the chair with regards to teacher learning within the department. The findings revealed that the work and career of the chair in this study were authored by strong elements of personal continuity and points of stability around the valuing of science, the subject, even as this valuing evolved from being more focused on epistemic values early in his career, to being more concerned with universal values connected to his legacy and his department later in his career.

  5. Leading Learning: Science Departments and the Chair

    Science.gov (United States)

    Melville, Wayne; Campbell, Todd; Jones, Doug

    2016-01-01

    In this article, we have considered the role of the chair in leading the learning necessary for a department to become effective in the teaching and learning of science from a reformed perspective. We conceptualize the phrase "leading learning" to mean the chair's constitution of influence, power, and authority to intentionally impact…

  6. Quantitative Assessment of a Novel Super-Resolution Restoration Technique Using HiRISE with Navcam Images: how much Resolution Enhancement is Possible from Repeat-Pass Observations

    Science.gov (United States)

    Tao, Y.; Muller, J.-P.

    2016-06-01

    Higher spatial resolution imaging data is always desirable to the international community of planetary scientists interested in improving understanding of surface formation processes. We have previously developed a novel Super-resolution restoration (SRR) technique (Tao & Muller, 2016) using Gotcha sub-pixel matching, orthorectification, and segmented 4th order PDE-TV, called GPT SRR, which is able to restore 5 cm-12.5 cm near rover scale images (equivalent to Navcam projected FoV at a range of ≥ 5 m) from multiple 25 cm resolution NASA MRO HiRISE images. The SRR technique has been successfully applied to the rover traverses for the MER and MSL missions within the EU FP-7 PRoViDE project. These SRR results have revealed new surface information including the imaging of individual rocks (diameter ≥ 25 cm) by comparison of the original HiRISE image and rover Navcam orthorectified image mosaics. In this work, we seek evidence from processing a very large number of stereo reconstruction results from all Navcam stereo images within PRoViDE, registration and comparison with the corresponding SRR image, in order to derive a quantitative assessment on key features including rocks (diameter < 150 cm) and rover track wheel spacing. We summarise statistics from SRR-Navcam measurements and demonstrate that our unique SRR datasets will greatly support the geological and morphological analysis and monitoring of Martian surface and can also be applied to landing site selection, in order to avoid unsuitable terrain, for any future lander/rover as well as help to define future rover paths.

  7. Scrap the NMC, says former trust chair.

    Science.gov (United States)

    2012-11-21

    The Nursing and Midwifery Council should be scrapped and the responsibility for dealing with problems handed to employers, a former NHS trust chair told delegates at the Royal College of Midwives conference.

  8. Chair Talk: Resources to Maximize Administrative Efforts

    Science.gov (United States)

    MacDonald, H.; Chan, M. A.; Bierly, E. W.; Manduca, C. A.; Ormand, C. J.

    2009-12-01

    Earth science department chairs are generally scientists who have little/no formal administrative training. The common rotation of faculty members in three-six year cycles distributes the heavy leadership responsibilities but involves little preparation beforehand to deal with budgets, fundraising, personnel issues, confrontations, and crises. The amount of information exchange and support upon exit and handoff to the next chair is variable. Resources for chairs include workshops, meetings (ranging from annual meetings of geoscience chairs to monthly meetings of small groups of chairs from various disciplines on a campus), discussions, and online resources. These resources, some of which we designed in the past several years, provide information and support for chairs, help them share best practices, and reduce time spent “reinventing the wheel”. Most of these resources involve groups of chairs in our discipline who meet together. The AGU Board of Heads and Chairs of Earth and Space Science Departments offers annual one-day workshops at the Fall AGU meeting. The specific topics vary from year to year; they have included goals and roles of heads and chairs, fundraising and Advisory Boards, student recruitment, interdisciplinarity, dual-career couples, and undergraduate research. The workshop provides ample opportunities for open discussion. Annual one-two day meetings of groups of geoscience department chairs (e.g., research universities in a particular region) provide an opportunity for chairs to share specific data about their departments (e.g., salaries, graduate student stipends, information about facilities) and discuss strategies. At the College of William and Mary, a small group of chairs meets monthly throughout the year; each session includes time for open discussion as well as a more structured discussion on a particular topic (e.g., merit review, development and fundraising, mentoring early career faculty and the tenure process, leadership styles

  9. 21 CFR 880.6140 - Medical chair and table.

    Science.gov (United States)

    2010-04-01

    ... Devices § 880.6140 Medical chair and table. (a) Identification. A medical chair or table is a device intended for medical purposes that consists of a chair or table without wheels and not electrically powered... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Medical chair and table. 880.6140 Section...

  10. Office chairs are often not adjusted by end-users

    NARCIS (Netherlands)

    Vink, P.; Porcar-Seder, R.; Pozo, Á.P. de; Krause, F.

    2007-01-01

    To find out how many office workers adjust their chairs, 350 office workers in Spain and the Netherlands are observed and questioned on whether they adjust their chairs. It appears that 24% of 236 Spanish office workers and 61% of 100 Dutch subjects never adjust their chair. If the chair is adjusted

  11. Pediatric dental chair vs. traditional dental chair: A pediatric dentist′s poll

    Directory of Open Access Journals (Sweden)

    Khushboo Barjatya

    2015-01-01

    Full Text Available Objective: Proper positioning of the child patient, can not only have positive ramifications for the operator′s posture, comfort, and career longevity - it can also lead to better treatment and increased productivity. The aim of the survey questionnaire was to assess the utilization, need, and attitude concerning dental chairs among pediatric dentist while working on and managing the child patient. Study Design: The questions were structured using adobe forms central online software, regarding the user-friendliness of pediatric dental chair vs. traditional adult dental chair available in the market. Results: Our result shows that out of 337 respondents, 79% worked on pediatric dental chair, whereas 21% had no experience of it. Of these 79% pediatric dentist, 48% preferred pediatric dental chair. But pediatric dental problem still has certain disadvantages like higher cost, leg space problem, lower availability, etc. Conclusion: During the research it was found that ergonomics and usability issues were the main problems. Thus, pediatric dental chair is not so popular in the current scenario. This study allowed for general ideas for the improvement of dental chairs and thus improved dental chair would fill the gap in the current scenario.

  12. Chair yoga: benefits for community-dwelling older adults with osteoarthritis.

    Science.gov (United States)

    Park, Juyoung; McCaffrey, Ruth

    2012-05-01

    The aim of this pilot study was to examine whether chair yoga was effective in reducing pain level and improving physical function and emotional well-being in a sample of community-dwelling older adults with osteoarthritis. One-way repeated measures analysis of variance was performed to examine the effectiveness of chair yoga at baseline, midpoint (4 weeks), and end of the intervention (8 weeks). Although chair yoga was effective in improving physical function and reducing stiffness in older adults with osteoarthritis, it was not effective in reducing pain level or improving depressive symptoms. Future research planned by this team will use rigorous study methods, including larger samples, randomized controlled trials, and follow up for monitoring home practice after the interventions.

  13. Repositioning chairs in benign paroxysmal positional vertigo

    DEFF Research Database (Denmark)

    West, Niels; Hansen, Søren; Møller, Martin Nue

    2016-01-01

    The objective was to evaluate the clinical value of repositioning chairs in management of refractory benign paroxysmal positional vertigo (BPPV) and to study how different BPPV subtypes respond to treatment. We performed a retrospective chart review of 150 consecutive cases with refractory vertigo...

  14. The future-oriented department chair.

    Science.gov (United States)

    Grigsby, R Kevin; Hefner, David S; Souba, Wiley W; Kirch, Darrell G

    2004-06-01

    The authors describe the current dilemma facing academic health centers (AHCs) as they recruit department chairs. In the past, leaders at AHCs predominantly were concerned with fulfilling the esteemed tripartite missions of patient care, research, and education. Today, their time and energy are occupied by a different set of tasks that have a distinct business orientation, including winning contracts, enhancing revenue, reducing costs, recruiting and managing a diverse workforce, and dealing with consumer satisfaction and marketing. New visions and strategies must be developed--requiring different dimensions of leadership. The authors offer concrete recommendations for recruiting, retaining, and sustaining department chairs, and argue that a deliberative, thoughtful process of engaging chair candidates should begin by focusing on the candidates' values as a first priority. Candidates who most clearly share organizational values should then be engaged in an iterative process of developing a shared vision, resulting in a letter of agreement that explicitly states the mutual expectations and commitments of both the organization and the candidate. Once department chairs are in place, ongoing development through leadership training, mentoring, and other investments help to retain and sustain them.

  15. Rising Star

    OpenAIRE

    Worley, Christiana

    2012-01-01

    Rising Star is a novel about appearances. Thailand Allen is a girl who thinks she understands what she sees. But when what she sees are cracks in her perfect world, maturation and new sight are not far off. Before growth can occur, Thailand must undergo a painful process of learning that carries with it embarrassment, sorrow, anger and confusion. Thailand lives with her mother in a small Texas town called Rising Star. Rising Star is like every other small town with its community gather...

  16. 7 CFR 1900.6 - Chair, Loan Resolution Task Force.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 12 2010-01-01 2010-01-01 false Chair, Loan Resolution Task Force. 1900.6 Section... AGRICULTURE PROGRAM REGULATIONS GENERAL Delegations of Authority § 1900.6 Chair, Loan Resolution Task Force. The Chair, Loan Resolution Task Force is delegated the following authorities, to be exercised...

  17. Samuel P. Massie Chair of Excellence Program

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, James H

    2014-12-15

    Abstract In 1994 the Department of Energy established the DOE Chair of Excellence Professorship in Environmental Disciplines Program. In 2004, the Massie Chair of Excellence Professor at Howard University transitioned from Dr. Edward Martin to Dr. James H. Johnson, Jr. At the time of his appointment Dr. Johnson served as professor of civil engineering and Dean of the College of Engineering, Architecture and Computer Sciences. Program activities under Dr. Johnson were in the following areas: • Increase the institution’s capacity to conduct scientific research and technical investigations at the cutting-edge. • Promote interactions, collaborations and partnerships between the private sector, Federal agencies, majority research institutes and other HBCUs. • Assist other HBCUs in reaching parity in engineering and related fields. • Mentor young investigators and be a role model for students.

  18. Samuel P. Massie Chair of Excellence Program

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, James H. [Howard Univ., Washington, DC (United States)

    2014-12-01

    Abstract In 1994 the Department of Energy established the DOE Chair of Excellence Professorship in Environmental Disciplines Program. In 2004, the Massie Chair of Excellence Professor at Howard University transitioned from Dr. Edward Martin to Dr. James H. Johnson, Jr. At the time of his appointment Dr. Johnson served as professor of civil engineering and Dean of the College of Engineering, Architecture and Computer Sciences. Program activities under Dr. Johnson were in the following areas: • Increase the institution’s capacity to conduct scientific research and technical investigations at the cutting-edge. • Promote interactions, collaborations and partnerships between the private sector, Federal agencies, majority research institutes and other HBCUs. • Assist other HBCUs in reaching parity in engineering and related fields. • Mentor young investigators and be a role model for students.

  19. Chaire Savoirs contre pauvreté

    OpenAIRE

    Duflo, Esther

    2010-01-01

    Esther Duflo a donné sa leçon inaugurale le 8 janvier 2009. Son cours intitulé « Pauvreté et développement dans le monde » a commencé le 12 janvier 2009.La chaire reçoit le soutien de l’Agence Française de Développement.

  20. ONR Chair in Arctic Marine Science

    Science.gov (United States)

    2016-06-07

    his measurements of ice thickness and heat/salt flux in Terra Nova Bay Polynya should pave the way for new parameterizations of ice growth/ melt in...SEP 1999 2. REPORT TYPE 3. DATES COVERED 00-00-1999 to 00-00-1999 4. TITLE AND SUBTITLE ONR Chair in Arctic Marine Science 5a. CONTRACT... Arctic Marine Science Robert H. Bourke Department of Oceanography Naval Postgraduate School 833 Dyer Road, Bldg. 232, Rm. 328 Monterey, CA 93943

  1. Space Grant Research Launches Rehabilitation Chair

    Science.gov (United States)

    2015-01-01

    Working with funding from the National Space Grant College and Fellowship Program-which was implemented by NASA Headquarters to fund research, education, and public service projects-a biomedical engineering student created a vibration-based system that could combat bone loss from prolonged trips to space. A rehabilitation chair incorporating the technology is now sold by Sheboygan, Wisconsin-based VibeTech Inc. and is helping people recover more quickly from injuries and surgery.

  2. Three-dimensional knee kinematics by conventional gait analysis for eleven motor tasks of daily living: typical patterns and repeatability.

    Science.gov (United States)

    Scheys, Lennart; Leardini, Alberto; Wong, Pius D; Van Camp, Laurent; Callewaert, Barbara; Bellemans, Johan; Desloovere, Kaat

    2013-04-01

    The availability of detailed knee kinematic data during various activities can facilitate clinical studies of this joint. To describe in detail normal knee joint rotations in all three anatomical planes, 25 healthy subjects (aged 22-49 years) performed eleven motor tasks, including walking, step ascent and descent, each with and without sidestep or crossover turns, chair rise, mild and deep squats, and forward lunge. Kinematic data were obtained with a conventional lower-body gait analysis protocol over three trials per task. To assess the repeatability with standard indices, a representative subset of 10 subjects underwent three repetitions of the entire motion capture session. Extracted parameters with good repeatability included maximum and minimum axial rotation during turning, local extremes of the flexion curves during gait tasks, and stride times. These specific repeatable parameters can be used for task selection or power analysis when planning future clinical studies.

  3. THE JEPARA CHAIRS BASED ON THEIR STYLE AND PERIOD

    Directory of Open Access Journals (Sweden)

    Octaviana Sylvia Caroline

    2016-09-01

    Full Text Available The purpose of this article was to identify the Jepara chairs based on its style and period. Qualitative research such as doing interviews with the Jepara chairs observer, observation to some centres and workshops of Jepara chairs, literature study from various books consisting the style and process of Jepara chairs production were conducted. The identification of Jepara chairs started with Islamic and Hinduism influence in the 16th to the 17th century when the missionary and sailor from Portuguese entered Java until the style of Jepara chair in the 20th century. The alteration that mirrors the changes in socio-cultural aspect was being analysed as the style foundation that was used periodically in the making of the Jepara chairs. The categories a chair to have a Jepara style is a chair made by the craftsman in Jepara that, includes local factors both technically and material based that is combined with foreign culture, religion, and designs that brought at the time the chairs have been made. This research finds that chairs with Jepara style are a combination of the international world with a glimpse of local wisdom, with a touch of the makers personality that makes it unique and a bit different with its origin style.

  4. The Jepara Chairs Based on Their Style and Period

    Directory of Open Access Journals (Sweden)

    Octaviana S.C. Rombe

    2016-04-01

    Full Text Available The purpose of this article was to identify the Jepara chairs based on its style and period. Qualitative research such as doing interviews with the Jepara chairs observer, observation to some centres and workshops of Jepara chairs, literature study from various books consisting the style and process of Jepara chairs production were conducted. The identification of Jepara chairs started with Islamic and Hinduism influence in the 16th to the 17th century when the missionary and sailor from Portuguese entered Java until the style of Jepara chair in the 20th century. The alteration that mirrors the changes in socio-cultural aspect was being analysed as the style foundation that was used periodically in the making of the Jepara chairs. The categories a chair to have a Jepara style is a chair made by the craftsman in Jepara that, includes local factors both technically and material based that is combined with foreign culture, religion, and designs that brought at the time the chairs have been made. This research finds that chairs with Jepara style are a combination of the international world with a glimpse of local wisdom, with a touch of the maker’s personality that makes it unique and a bit different with its origin style. 

  5. Evaluation of a prototype multi-posture office chair.

    Science.gov (United States)

    Legg, S J; Mackie, H W; Milicich, W

    2002-02-10

    Office chairs have often been designed to promote a single 'correct' rather rigid and upright posture, yet it is acknowledged that allowing changes in posture is good ergonomics practice. The present study investigated office worker's preferences for a standard shaped typist's chair (ST) and a prototype multi-posture (PMP) office chair designed to allow its users a variety of sitting positions. Forty-two (22 male and 20 female) telesales personnel (12), clerical staff (12) and researchers (18) used ST or PMP in their workplace for the first week of a 2-week study (with an even number in each work area). The PMP chair was introduced to participants with a brief lecture on how to use it and with an information booklet. Following this, each participant completed a chair comfort questionnaire. In the second week, participants swapped chairs and again completed the chair comfort questionnaire. At the end of the second week participants were also asked to complete a separate questionnaire about the usability of the information booklet that accompanied the PMP chair. Statistically significant differences in subject's rating of the two chairs were observed in 7 out of 19 questions. On a 100 mm scale, the ST chair was rated as having a greater mean overall acceptability, desirability and suitability for body build than the PMP chair. Participants also claimed to achieve better posture in the ST chair, that they tipped forward less and were more satisfied with its width. Although the participants generally preferred the ST chair, the PMP chair received more favourable ratings among the researchers who were quite mobile in their work, and in whom there was a trend for less neck, shoulder and upper back discomfort. More participants reported an overall preference for the PMP chair. The findings suggest that a more aesthetically acceptable PMP chair should be developed, peoples' reasons for preferring a more traditionally designed chair should be explored, and that the effect

  6. Chair of a department of medicine: now a different job.

    Science.gov (United States)

    Kastor, John A

    2013-07-01

    The job of chair of a department of medicine, once seen as the apex in the career of an academic internist, has lost much of its allure, in part because of increasing administrative and financial obligations that require more of the time and effort of chairs than formerly. This is the impression the author gathered from interviewing 44 current and former chairs, deans, division chiefs, and hospital directors.He was told that chairs have lost some of their independence as departments have become increasingly dependent on the support of the executives at their university hospitals who, as the source of funds and facilities, can even specify which clinical services the chairs may develop. Conflict over the assignment of resources between dean and hospital CEO, which one interviewee stated can produce "incredible tensions," can complicate efforts of chairs to build clinical and research strength within their departments according to their own preferences. The growing administrative and financial duties of the job have forced some chairs to decrease their dedication to the classic responsibilities of teaching medical students and house officers.Recruiting outstanding leaders for departments of medicine challenges search committees and deans more than in the past because many suitable candidates do not choose to be considered and prefer to lead institutes, centers, or specialty divisions. The author suggests, however, that schools-by providing chairs with adequate administrative support and authority-can structure the job to improve its attractiveness and allow chairs more time to engage in traditional academic pursuits.

  7. A Qualitative Study of Faculty Members' Views of Women Chairs

    Science.gov (United States)

    Isaac, Carol; Griffin, Lindsay

    2010-01-01

    Abstract Background Concurrent with the evolving role of the department chair in academic medicine is the entry of women physicians into chair positions. Because implicit biases that stereotypically masculine behaviors are required for effective leadership remain strong, examining faculty members' perceptions of their chair's leadership in medical school departments with women chairs can provide insight into the views of women leaders in academic medicine and the complex ways in which gender may impact these chairs' leadership style and actions. Methods We conducted semistructured interviews with 13 male and 15 female faculty members representing all faculty tracks in three clinical departments chaired by women. Inductive, qualitative analysis of the subsequent text allowed themes to emerge across interviews. Results Four themes emerged regarding departmental leadership. One dealt with the leadership of the previous chair. The other three described the current chair's characteristics (tough, direct, and transparent), her use of communal actions to help support and mentor her faculty, and her ability to build power through consensus. Because all three chairs were early in their tenure, a wait and see attitude was frequently expressed. Faculty generally viewed having a woman chair as an indication of positive change, with potential individual and institutional advantages. Conclusions This exploratory study suggests that the culture of academic medicine has moved beyond questioning women physicians' competence to lead once they are in top organizational leadership positions. The findings are also consonant with experimental research indicating that women leaders are most successful when they pair stereotypic male (agentic) behaviors with stereotypic female (communal) behaviors. All three chairs exhibited features of a transformational leadership style and characteristics deemed essential for effective leadership in academic medicine. PMID:20156081

  8. Secondary School Department Chairs Leading Successful Change

    Directory of Open Access Journals (Sweden)

    Julie Ann Gaubatz

    2015-12-01

    Full Text Available A foundational understanding within education leadership literature is that education leaders are expected to guide reform efforts within school. This expectation mirrors organizational development literature that describes leaders as individuals who constructively institute change within their organizations. Although leadership and change are portrayed as codependent, no scholarship has linked change models with leadership theories. This article describes a multiple case study that explored the relationship between leadership behaviors and the change process through secondary school department chair stories of change. From this analysis, a clearer picture emerged that illustrates how leaders with little control over decisions implement change. Findings included distinct connections between CREATER change process stages and the Leadership Grid. Suggestions as to how education leaders should approach change attempts within their schools are discussed.

  9. Type 2 diabetes sits in a chair

    DEFF Research Database (Denmark)

    Solomon, Thomas; Thyfault, J P

    2013-01-01

    The incidence of type 2 diabetes (T2D) continues to skyrocket across the industrialized world leading to soaring medical costs, reduced quality of life and increased mortality rates. Therefore, a more firm understanding of the development of the disease and effective, low cost therapies for preve......The incidence of type 2 diabetes (T2D) continues to skyrocket across the industrialized world leading to soaring medical costs, reduced quality of life and increased mortality rates. Therefore, a more firm understanding of the development of the disease and effective, low cost therapies....... In this review, we cover these topics and use current scientific evidence to support our belief that 'type 2 diabetes sits in a chair'. We also discuss a relatively new question that has yet to be examined: Would reducing sitting time be an effective treatment for T2D?...

  10. The Hot Seat: Profiling the Marketing Department Chair

    Science.gov (United States)

    Aggarwal, Praveen; Rochford, Linda; Vaidyanathan, Rajiv

    2009-01-01

    The chair of the marketing department serves a critical role in balancing the needs of the university with those of the faculty. Because most department chairs are drawn from the faculty in their departments, the administrative role they take on conflicts with their desire to maintain their academic roles as teacher and researcher. Although there…

  11. The Strategic Value of Succession Planning for Department Chairs.

    Science.gov (United States)

    Rayburn, William; Grigsby, Kevin; Brubaker, Linda

    2016-04-01

    Most faculty who aspire to be department chairs are unaware of succession processes at their institution. This Commentary highlights the importance of succession planning, emphasizing the general need for transparency. Succession planning provides institutional leaders the opportunity to optimize, renew, and revitalize their organization by ensuring successful leadership transitions. In contrast to leadership pathways in the military, corporate business, and hospital administration, planned succession of medical school department chairs has received little attention. Different approaches to succession planning are essential for emergency and planned transitions. Emergency succession plans should be in place at all times, regularly revisited, and modified as needed. Department chairs should begin considering their planned succession between one and five years after their initial appointment. The succession discussion between a chair and medical school dean requires cautious, thoughtful, and open discussions. Intradepartmental annual faculty performance evaluations permit the chair to mentor potential successors in acquiring future-oriented, institution-based leadership qualities necessary to be considered for a future department chair position. If health and time permit, the successful chair should remain in his or her current position until a successor is named or, preferably, is in place. Appointment of an interim chair as part of succession planning can be useful for on-the-job training of an internal candidate, yet awkwardness might ensue if there is more than one internal candidate.Succession development offers the great advantage of maintaining smooth organizational performance while optimizing talent management and exploring opportunities for transitioning individuals into leadership roles.

  12. Turnover of First-Time Chairs in Departments of Psychiatry

    Science.gov (United States)

    Buckley, Peter F.; Rayburn, William F.

    2011-01-01

    Objective: The authors examine the tenure of first-time Chairs in academic departments of psychiatry in order to stimulate discussion on extant workforce and leadership issues. Method: Data on tenure of Chairs in psychiatry and other nonsurgical specialties were derived from the longitudinal database of the Association of American Medical Colleges…

  13. Exploring the Tensions and Ambiguities of University Department Chairs

    Science.gov (United States)

    Armstrong, Denise E.; Woloshyn, Vera E.

    2017-01-01

    The department chair is a complex middle-management position located at the organizational fulcrum between faculty and senior administration. This qualitative study sought to develop a deeper understanding of chairs' experiences when enacting their dual roles as managers and scholars. Using a basic interpretative study design, we interviewed 10…

  14. Department Chairs' Perceptions of the Importance of Business Communication Skills.

    Science.gov (United States)

    Wardrope, William J.

    2002-01-01

    Determines business department chairs' ratings of topics typically covered in the business communication course. Indicates that department chairs perceive writing skills to be more important to business communication courses than other communication skills, such as speaking, technology-mediated communication, interpersonal communication,…

  15. FIRO B: Analyzing Community College Department Chairs' Effectiveness.

    Science.gov (United States)

    Coats, Linda T.; And Others

    A study was conducted to explore the relationship between the interpersonal behavior of community college department chairs and the assessment of their leadership effectiveness by department faculty. The study population consisted of 30 humanities and social science chairs at 15 Mississippi community colleges, as well as 171 faculty members at the…

  16. TABLE AND CHAIRS CRAFTSMAN IBM IN BULADU VILLAGE GORONTALO DISTRICT

    Directory of Open Access Journals (Sweden)

    Ayuddin Ayuddin

    2017-04-01

    Full Text Available The Gorontalo Community still rely on tables and chairs furniture made from rattan, but along with the time, tables and chairs from rattan is already becoming obsolete, one reason is growing furniture design that more convincing than other materials such as wood and aluminum. The society Devotion (IBM will provide re-design solutions for a table and chairs made from rattan by considering three main concepts, namely efficiency, aesthetic, and functional. With this concept can produce tables and chairs that are more innovative, powerful, and has a higher aesthetic so that it becomes a product of superior competition. Specific targets to be achieved is the increase: 1 knowledge and skills about designing tables and chairs from rattan using three concepts, namely efficiency, aesthetic, and functional, 2 increased revenue artisans from rattan tables and chairs. In addition to these targets, also the administrative improvement craftsmen and marketing management. The method used is the training and assistance directly to the artisans of the strategies and techniques in the manufacture of tables and chairs made of rattan. The results are expected to be an increase in the sale price so that the welfare of artisans tables and chairs to be better in the future.

  17. Department Chairs' Perceptions of the Importance of Business Communication Skills.

    Science.gov (United States)

    Wardrope, William J.

    2002-01-01

    Determines business department chairs' ratings of topics typically covered in the business communication course. Indicates that department chairs perceive writing skills to be more important to business communication courses than other communication skills, such as speaking, technology-mediated communication, interpersonal communication,…

  18. The Hot Seat: Profiling the Marketing Department Chair

    Science.gov (United States)

    Aggarwal, Praveen; Rochford, Linda; Vaidyanathan, Rajiv

    2009-01-01

    The chair of the marketing department serves a critical role in balancing the needs of the university with those of the faculty. Because most department chairs are drawn from the faculty in their departments, the administrative role they take on conflicts with their desire to maintain their academic roles as teacher and researcher. Although there…

  19. Après la chair

    Directory of Open Access Journals (Sweden)

    Claude Romano

    2013-12-01

    Full Text Available Il n’y a pas de question plus urgente, pour la phénoménologie, que la question du « corps propre », comme il est convenu de l’appeler depuis Husserl. Mais il n’y a pas non plus de question qui ait été davantage négligée par les phénoménologues contemporains. À première vue, cette affirmation se heurte à l’évidence d’une production littéraire quasi exponentielle autour de cette notion depuis plus d’une trentaine d’années, aussi bien en histoire de la philosophie que dans des travaux qui se sont efforcés de croiser la perspective phénoménologique avec les apports des sciences du cerveau et de la cognition. L’ennui est que cette ample littérature ne pose aucune des questions préjudicielles à l’adoption du concept de corps propre ou de chair (Leib en phénoménologie ; pour l’essentiel, elle fait comme si ce concept allait de soi et se borne à se demander de quelle manière il pourrait « féconder » des approches scientifiques plus positives. La légitimité du concept même de Leib et de ses prolongements à l’intérieur du courant phénoménologique n’y est jamais questionnée en tant que telle. Non seulement on ne se demande pas si les descriptions de cette « chair » au fil conducteur de l’expérience du toucher redoublé est tenable, mais on ne soulève même pas la question de savoir si l’adoption de ce concept chez Husserl et ses successeurs n’est pas conditionnée par des présupposés discutables et, en vérité, par tout un cadre théorique, de sorte que la mise en question de certains aspects centraux de ce cadre devrait conduire inévitablement à une révision en profondeur de ce concept. C’est cette question que nous voudrions aborder dans ces pages. Compte-tenu de l’ampleur du sujet, notre but sera uniquement d’indiquer un certain nombre de directions que pourrait – ou devrait – emprunter la réflexion.

  20. Sitting into the limelight: Lonely Chairs at CERN turns one

    CERN Multimedia

    Katarina Anthony

    2015-01-01

    A picture may be worth a thousand words - but a picture of a chair? It’s worth a story all by itself. Over the past year, the "Lonely Chairs at CERN" photography blog has let the chairs do the talking. Along the way, these chairs have inspired and enchanted people across the globe with their honest depiction of the Laboratory.   This lonely chair outside Building 32 was one of the first Rebeca photographed. When CMS physicist Rebeca Gonzalez Suarez created Lonely Chairs at CERN back in April 2014, she was not expecting the immediate reaction it garnered. Within days, the blog had picked up thousands of followers and was featured in Gizmodo and The Guardian. "The response inside CERN was very positive, but the response outside was overwhelming," says Rebeca. "I’ve got a lot of followers who are really into science and are very excited about CERN. They comment about wanting to work here - sometimes on the ugliest chair I&rsqu...

  1. Changing chairs: anticipating problems in prescribing wheelchairs.

    Science.gov (United States)

    Batavia, M; Batavia, A I; Friedman, R

    2001-08-15

    This article presents a framework for prescribing, ordering, and adapting a new wheelchair, focusing on individual, environmental and wheelchair factors that must be taken into consideration to ensure optimal function. A review and analysis was conducted of all factors relevant to the transition to a new wheelchair. Without appropriate planning and implementation, this transition can result in unnecessary expenses, duplication of effort, and possibly even injury to the user and abandonment of the wheelchair. Recommendations are provided to manufacturers, therapists, technicians, users, insurers and physicians, who must work together throughout this process. To the extent feasible, the authors suggest that major changes from the previous wheelchair should be avoided, particularly for people with substantial functional limitations. Therapists and technicians must measure the user accurately, and anticipate those factors that can impede a smooth transition. Insurers and other payors must recognize that changing wheelchairs will often require substantial professional assistance, including several fittings to adjust the new chair to the needs of the user. Additional research and case reporting on outcomes of adjusting to a new wheelchair appear warranted.

  2. Burnout in United States Academic Chairs of Radiation Oncology Programs

    Energy Technology Data Exchange (ETDEWEB)

    Kusano, Aaron S. [Department of Radiation Oncology, University of Washington School of Medicine, Seattle, Washington (United States); Thomas, Charles R., E-mail: thomasch@ohsu.edu [Department of Radiation Medicine, Knight Cancer Institute/Oregon Health and Science University, Portland, Oregon (United States); Bonner, James A. [Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, Alabama (United States); DeWeese, Theodore L. [Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Medical Institutions, Baltimore, Maryland (United States); Formenti, Silvia C. [Department of Radiation Oncology, New York University, New York, New York (United States); Hahn, Stephen M. [Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania (United States); Lawrence, Theodore S. [Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan (United States); Mittal, Bharat B. [Department of Radiation Oncology, Northwestern University, Chicago, Ilinois (United States)

    2014-02-01

    Purpose: The aims of this study were to determine the self-reported prevalence of burnout in chairs of academic radiation oncology departments, to identify factors contributing to burnout, and to compare the prevalence of burnout with that seen in other academic chair groups. Methods and Materials: An anonymous online survey was administered to the membership of the Society of Chairs of Academic Radiation Oncology Programs (SCAROP). Burnout was measured with the Maslach Burnout Inventory-Human Services Survey (MBI-HSS). Results: Questionnaires were returned from 66 of 87 chairs (76% response rate). Seventy-nine percent of respondents reported satisfaction with their current positions. Common major stressors were budget deficits and human resource issues. One-quarter of chairs reported that it was at least moderately likely that they would step down in the next 1 to 2 years; these individuals demonstrated significantly higher emotional exhaustion. Twenty-five percent of respondents met the MBI-HSS criteria for low burnout, 75% for moderate burnout, and none for high burnout. Group MBI-HSS subscale scores demonstrated a pattern of moderate emotional exhaustion, low depersonalization, and moderate personal accomplishment, comparing favorably with other specialties. Conclusions: This is the first study of burnout in radiation oncology chairs with a high response rate and using a validated psychometric tool. Radiation oncology chairs share similar major stressors to other chair groups, but they demonstrate relatively high job satisfaction and lower burnout. Emotional exhaustion may contribute to the anticipated turnover in coming years. Further efforts addressing individual and institutional factors associated with burnout may improve the relationship with work of chairs and other department members.

  3. Jaczko to resign as chair of Nuclear Regulatory Commission

    National Research Council Canada - National Science Library

    Showstack, Randy

    2012-01-01

    .... Jaczko formerly served as science advisor to Sen. Harry Reid (D‐Nev.). As NRC chair, Jaczko halted the commission's license application review for storing nuclear waste at Nevada's Yucca Mountain...

  4. Influence of Chair Vibrations on Indoor Sonic Boom Annoyance

    Science.gov (United States)

    Rathsam, Jonathan; Klos, Jacob; Loubeau, Alexandra

    2015-01-01

    One goal of NASA’s Commercial Supersonic Technology Project is to identify candidate noise metrics suitable for regulating quiet sonic boom aircraft. A suitable metric must consider the short duration and pronounced low frequency content of sonic booms. For indoor listeners, rattle and creaking sounds and floor and chair vibrations may also be important. The current study examined the effect of such vibrations on the annoyance of test subjects seated indoors. The study involved two chairs exposed to nearly identical acoustic levels: one placed directly on the floor, and the other isolated from floor vibrations by pneumatic elastomeric mounts. All subjects experienced both chairs, sitting in one chair for the first half of the experiment and the other chair for the remaining half. Each half of the experiment consisted of 80 impulsive noises played at the exterior of the sonic boom simulator. When all annoyance ratings were analyzed together there appeared to be no difference in mean annoyance with isolation condition. When the apparent effect of transfer bias was removed, a subtle but measurable effect of vibration on annoyance was identified.

  5. Thermal Comfort While Sitting on Office Chairs – Subjective Evaluations

    Directory of Open Access Journals (Sweden)

    Zoran Vlaović

    2012-12-01

    Full Text Available Thermal comfort is related to human physiological reactions. In order to maintain a constant internal temperature, the human body must dissipate heat in a warm climate, and prevent heat losses in a cold climate. The overall sensation of comfort accompanies the warmest part of the body in a warm environment and the coldest one in a cold environment. Chair design and clothing may affect the difference in sensitivity between certain parts of the body, that is, they may affect thermal comfort. This research focused on subjective sensation of warmth and moisture while sitting on offi ce chairs. The subjective method of evaluating thermal discomfort is based on ISO 7730:2005 standard, according to which a questionnaire was made for this research. Six subjects took part in the research. They were sitting on five different office chairs as they performed their usual jobs in controlled conditions. From the point of view of the evaluation of the sensation of warmth, all chairs were evaluated neutrally. The sensation under the buttocks and thighs was reported to be somewhat warmer, while the sensation on the back was reported to be somewhat colder, which was affected by the design of the back of the chair. No correlation has been proven between the actual temperature and moisture measurements and subjective evaluations of thermal comfort, in spite of a number of direct links. The use of the present method offers the possibility of further research into this subject, which would prove more thoroughly a correlation between design and construction solutions of office chairs and the comfort perceived by sitting persons.

  6. Strategies for establishing an endowed chair in a service setting.

    Science.gov (United States)

    Randhawa, Simmy; Robinson, Nellie C; Feetham, Suzanne; Church, Tracy; Hinds, Pamela S; Talley, Linda B; Williams, Catherine

    2014-01-01

    To advance care for patients and families requires that providers and administrators in clinical settings place a high priority on the scientific domain of nursing. New knowledge intended to benefit nursing care is most effectively and efficiently achieved when a vibrant and well-supported nursing research program is embedded within a health care system. An endowed chair in nursing research is an esteemed strategy acknowledging the contributions of nursing science, providing credibility to a researcher and research programs, and demonstrating commitment to the infrastructure for nursing research. Organizational readiness through leadership; systems thinking; relationship development; and knowledge of the dynamics, process, and expectations of philanthropy are essential to establishing an endowed chair. Philanthropic endeavors can be used to strategically develop a high-impact campaign that resonates across public and private sectors to secure funding to solidify and advance nursing research. By actively engaging stakeholders including system leaders, frontline nurses, and other care providers and development leaders, a successful campaign can establish and sustain an endowed chair in nursing research. This article describes the stakeholders, processes, structure, and outcomes for the first endowed chair in nursing research at Children's National Health System in Washington, DC.

  7. POSTWAR EUROPEAN CHAIR DESIGN. A COMEBACK OF THE STYLE CONNECTION

    Directory of Open Access Journals (Sweden)

    Marina CIONCA

    2015-12-01

    Full Text Available The paper presents the results of studies and research aimed at identifying significant concepts of the design process dynamics of two European designers, Gió Ponti (Italy and Hans Wegner (Denmark. Two of their major chair designs, the Wishbone Chair (Wegner, 1944-49 and the Superleggera Chair (Ponti, 1951-57 were chosen as study cases. Their historical concept sources were carefully investigated and documented, since in the postwar years a tendency towards disregarding the dogmatic functionality of the interwar avant-garde furniture design occurred, making place for a different kind of innovation that did not contradict the natural evolution of form and function, but introduced an inherent elegance of form, as well as exceptional craftsmanship seen as adding value to the industrial production. Formal, compositional, structural and ergonomic elements were analysed, measurements of dimensions and angles were made and compared, sitting positions were visualised, in an attempt to unveil crucial aspects of specific design insights. The good understanding of the style connections, of the significant construction details that confirm the innovative, functional and well-balanced appearance of these chairs, of the careful selection of materials that characterised postwar austerity, contributed to an already confirmed investigative approach, which may be seen as a useful instrument of knowledge not only for design education, but also for design historians, furniture designers, manufacturers and artisans.

  8. Archives, Collections and Curatorship. The Delft Chair Collection

    NARCIS (Netherlands)

    Van Wijk, C.

    2011-01-01

    Last year, in May, the building of the Faculty of Architecture at the Delft Technical University was destroyed almost entirely by fire. Fortunately, some parts of the building escaped the flames and, after a few days, the library collection of over 40,000 titles was saved, as was the chair collectio

  9. Development of Leadership Skills in Community College Department Chairs

    Science.gov (United States)

    Sirkis, Jocelyn Eager

    2011-01-01

    The role of a community college department chairperson is not well defined and the job is often perceived as more of a burden than an honor. Faculty come to the position frequently by "default" and without a ready set of management and leadership skills. The matter is of concern since chairs influence academic department strategy, culture, and…

  10. Bourdieu, Department Chairs and the Reform of Science Education

    Science.gov (United States)

    Melville, Wayne; Hardy, Ian; Bartley, Anthony

    2011-01-01

    Using the insights of the French sociologist, Pierre Bourdieu, this article considers the role of the science department chair in the reform of school science education. Using Bourdieu's "thinking tools" of "field", "habitus" and "capital", we case study the work of two teachers who both actively pursue the teaching and learning of science as…

  11. The analytic setting today: using the couch or the chair?

    Science.gov (United States)

    Wiener, Jan

    2015-09-01

    This paper re-visits Murray Jackson's 1961 paper in the Journal of Analytical Psychology, 'Chair, couch and countertransference', with the aim of exploring the role of the couch for Jungian analysts in clinical practice today. Within the Society of Analytical Psychology (SAP) and some other London-based societies, there has been an evolution of practice from face-to-face sessions with the patient in the chair, as was Jung's preference, to a mode of practice where patients use the couch with the analyst sitting to the side rather than behind, as has been the tradition in psychoanalysis. Fordham was the founding member of the SAP and it was because of his liaison with psychoanalysis and psychoanalysts that this cultural shift came about. Using clinical examples, the author explores the couch/chair question in terms of her own practice and the internal setting as a structure in her mind. With reference to Bleger's (2013) paper 'Psychoanalysis of the psychoanalytic setting', the author discusses how the analytic setting, including use of the couch or the chair, can act as a silent container for the most primitive aspects of the patient's psyche which will only emerge in analysis when the setting changes or is breached.

  12. New chair for the Particle Physics and Astronomy Research Council

    CERN Multimedia

    2001-01-01

    Peter Warry has been appointed as Chair of PPARC for the next 4 years. Chairman of Victrex plc, whose business is in speciality chemicals, he has been an Industrial Professor at the University of Warwick since 1993. PPARC pursues a programme of high quality basic research in particle physics, astronomy, cosmology and space science and its budget for 2002 is approximately 220 million GBP.

  13. Prof. Lu Yongxiang Elected IAC Co-Chair

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    @@ CAS President Lu Yongxiang was elected co-chair of the InterAcademy Council (IAC) at the Fifth Annual Meeting of the IAC Board held from January 31 to February 2 in Amsterdam, the Netherlands. President Lu is to succeed Prof. Goverdhan Mehta,former President of the Indian National Science Academy, to represent those from the developing world in the organization.

  14. Human Research Program 2010 Chair Standing Review Panel Meeting

    Science.gov (United States)

    Steinberg, Susan

    2011-01-01

    The 13 Human Research Program (HRP) Standing Review Panel (SRP) Chairs, and in some cases one or two additional panel members (see section XIV, roster) referred to as the Chair (+1) SRP throughout this document, met at the NASA Johnson Space Center (JSC) on December 7, 2010 to allow the HRP Elements and Projects to report on their progress over the past year, their current status, and their plans for the upcoming year based on NASA's current goals and objectives for human space exploration. A large focus of the meeting was also used to discuss integration across the HRP scientific disciplines based on a recommendation from the 2009 HRP SRP review. During the one-day meeting, each of the HRP Elements and Projects presented the changes they made to the HRP Integrated Research Plan (IRP Rev. B) over the last year, and what their top three areas of integration are between other HRP Elements/Projects. The Chair (+1) SRP spent sufficient time addressing the panel charge, either as a group or in a separate closed session, and the Chair (+1) SRP and the HRP presenters and observers, in most cases, had sufficient time to discuss during and after the presentations. The SRP made a final debriefing to the HRP Program Scientist, Dr. John B. Charles, prior to the close of the meeting on December 7, 2010. Overall, the Chair (+1) SRP concluded that most of the HRP Elements/Projects did a commendable job during the past year in addressing integration across the HRP scientific disciplines with the available resources. The Chair (+1) SRP agreed that the idea of integration between HRP Elements/Projects is noble, but believes all parties involved should have the same definition of integration, in order to be successful. The Chair (+1) SRP also believes that a key to successful integration is communication among the HRP Elements/Projects which may present a challenge. The Chair (+1) SRP recommends that the HRP have a workshop on program integration (with HRP Element

  15. Deployment Repeatability

    Science.gov (United States)

    2016-04-01

    controlled to great precision, but in a Cubesat , there may be no attitude determination at all. Such a Cubesat might treat sun angle and tumbling rates as...could be sensitive to small differences in motor controller timing. In these cases, the analyst might choose to model the entire deployment path, with...knowledge of the material damage model or motor controller timing precision. On the other hand, if many repeated and environmentally representative

  16. Autonomous Rolling Method of Intelligent Wheel Chair Using the Teaching and Q-learning

    Science.gov (United States)

    Abe, Hideki; Hamagami, Tomoki; Koakutsu, Seiichi; Hirata, Hironori

    In this paper, we propose an autonomous rolling method of intelligent wheel chair (IWC) using the teaching and Q-learning. In the proposed method, first, IWC learns a run path. Next, IWC corrects a position gap around the teaching point by using Q-learning. When detection of the teaching point goes wrong by the noise to motors, IWC cannot reach to the destination. The proposed method is applied to the task which runs a passage, and the simulation results show that IWC repeats a cutback and corrects a position gap. Furthermore, the simulation results show that IWC corrects a position gap more certainly by using the data learned in the environment with the noise to motors.

  17. Does a dynamic chair increase office workers' movements? - Results from a combined laboratory and field study.

    Science.gov (United States)

    Grooten, Wilhelmus J A; Äng, Björn O; Hagströmer, Maria; Conradsson, David; Nero, Håkan; Franzén, Erika

    2017-04-01

    Dynamic chairs have the potential to facilitate movements that could counteract health problems associated with sedentary office work. This study aimed to evaluate whether a dynamic chair can increase movements during desk-based office work. Fifteen healthy subjects performed desk-based office work using a dynamic office chair and compared to three other conditions in a movement laboratory. In a field study, the dynamic office chair was studied during three working days using accelerometry. Equivocal results showed that the dynamic chair increased upper body and chair movements as compared to the conventional chair, but lesser movements were found compared to standing. No differences were found between the conditions in the field study. A dynamic chair may facilitate movements in static desk-based office tasks, but the results were not consistent for all outcome measures. Validation of measuring protocols for assessing movements during desk-based office work is warranted. Copyright © 2016 Elsevier Ltd. All rights reserved.

  18. 76 FR 45845 - Notice of Issuance of Final Determination Concerning a Certain Patient Transport Chair

    Science.gov (United States)

    2011-08-01

    .... The significant materials which comprise the patient transport chair include: wheels, casters, arm... Patient Transport Chair AGENCY: U.S. Customs and Border Protection, Department of Homeland Security... certain patient transport chair. Based upon the facts presented, CBP has concluded in the...

  19. Effects of using dynamic office chairs on posture and EMG in standardized office tasks

    NARCIS (Netherlands)

    Ellegast, R.; Hamburger, R.; Keller, K.; Krause, F.; Groenesteijn, L.; Vink, P.; Berger, H.

    2007-01-01

    In the paper a measuring system for the comparative posture and EMG analysis of office chairs is presented. With the system four specific dynamic office chairs that promote dynamic sitting and therefore aim to prevent musculoskeletal disorders (MSD), were analyzed in comparison to a reference chair

  20. Decision-Making Styles of Department Chairs at Public Jordanian Universities: A High-Expectancy Workforce

    Science.gov (United States)

    Khasawneh, Samer; Alomari, Aiman; Abu-tineh, Abdullah

    2011-01-01

    The primary purpose of this study was to determine the decision-making styles of department chairs employed by three public institutions in Jordan. A total of 95 department chairs participated in the study by completing the General Decision-Making Styles survey. The results indicated that department chairs under study have the rational…

  1. Influence of different joints on quality of dining chairs

    Directory of Open Access Journals (Sweden)

    Skakić Dušan

    2008-01-01

    Full Text Available Products quality presents one of the main causes of every contemporary organized production, which includes it, in group of basic exit characteristics. According to national standard, quality mark is based on testing of its quality characteristics. A characteristic of quality has been divided into four groups of demands: functionality (functional dimensions and stability tests, rigidity, surface rigidity, quality of materials and work piece accuracy. Dining chair has been investigated by use of different wood joints, and some remarks on construction has been given. Two groups of investigated chairs has been mounted by use of metal fittings, and one group has been connected with wood dowels by use of PVA wood glue.

  2. UNESCO Chair of Museology and World Heritage 1994 – 2002

    Directory of Open Access Journals (Sweden)

    Jan Dolák

    2016-03-01

    Full Text Available The UNESCO Chair on Museology and World Heritage was established at the Masaryk University in Brno in 1994. It commenced its activities in full in 1996 and Vinos Sofka (1928-2016, appointed in March 1995, became the first chairholder. The Chair was focused on the UNESCO transition project that dealt with the documentation of the totalitarian and postcolonial past of many countries in the former Soviet bloc, Latin America and other parts of the world. It was supported by the General conference of UNESCO resolution on Heritage, museum and museology for social, cultural and environmental transition (Transition project in October 1995 and the Czech Ministry of Education. The institution obtained a good reputation abroad while it remained somewhat controversial at home and it was eventually joined with the UNESCO International Summer School of Museology. In 2002, Vinoš Sofka left Brno and Jan Dolák become the new chairholder.

  3. A kinematic and kinetic analysis of the sit-to-stand transfer using an ejector chair: implications for elderly rheumatoid arthritic patients.

    Science.gov (United States)

    Munro, B J; Steele, J R; Bashford, G M; Ryan, M; Britten, N

    1998-03-01

    Twelve elderly female rheumatoid arthritis patients (mean age = 65.5 +/- 8.6 yr) were assessed rising from an instrumented Eser Ejector chair under four conditions: high seat (540 mm), low seat (450 mm), with and without the ejector mechanism operating. Sagittal plane motion, ground reaction forces, and vertical chair arm rest forces were recorded during each trial with the signals synchronised at initial subject head movement. When rising from a high seat, subjects displayed significantly (p ejector mechanism, time to seat off and trunk and knee angle at seat off significantly increased, whereas trunk and knee angular displacement, and total net and normalised arm rest forces significantly decreased compared to rising unassisted. Regardless of seat height or ejector mechanism use, there were no significant differences in the peak, or time to peak horizontal velocity of the subjects' total body centre of mass, or net knee and ankle moments. It was concluded that increased seat height and use of the ejector mechanism facilitated sit-to-stand transfers performed by elderly female rheumatoid arthritic patients. However, using the ejector chair may be preferred by these patients compared to merely raising seat height because it does not necessitate the use of a footstool, a possible obstacle contributing to falls.

  4. Effect of air conditioning and chair cushion on scrotal temperature.

    Science.gov (United States)

    Song, Gook-Sup; Kim, Wonwoo; Seo, Ju Tae

    2008-08-01

    The hypothesis of this study is that the air conditioning temperature and thickness of the chair cushion affect a man's scrotal, and consequently testicular, temperature. Ten healthy male subjects volunteered for the study (age: 23.4 +/- 2.4 years; height: 173.8 +/- 5.09 cm; weight: 71.6 +/- 9.7 kg; body fat ratio: 18.6 +/- 4.1%). The air conditioning temperature was controlled at 18 degrees C to represent the heating season, and at 26 degrees C to represent the cooling season. The thickness of the chair cushions was varied from 0 to 8 cm at 2 cm intervals. The changes in the scrotal surface temperature (SST) and buttock skin temperature were measured for 120 min. At the ambient temperatures (t(a)) of 18 and 26 degrees C, the average SST were 33.76 +/- 1.28 and 35.02 +/- 0.54 degrees C for the chair cushion thickness (C(thk)) of 0 cm, 33.87 +/- 1.07 and 34.96 +/- 0.75 degrees C for C(thk) 2 cm, 33.91 +/- 0.84 and 35.03 +/- 0.85 degrees C for C(thk) 4 cm, 34.42 +/- 0.89 and 35.02 +/- 0.63 degrees C for C(thk) 6 cm, and 34.65 +/- 1.21 and 34.99 +/- 0.62 degrees C for C(thk) 8 cm respectively. SST was significantly affected by the air conditioning temperature (p < 0.001), but was not statistically correlated with the chair cushion thickness.

  5. The AGU Board of Heads and Chairs: Past and Future

    Science.gov (United States)

    Wuebbles, D. J.; Bierly, E. W.

    2005-12-01

    The primary objective of the AGU Board of Heads and Chairs is to be a conduit for interactions of AGU with the many universities and colleges involved in geosciences education and research. The Board also provides a forum for discussing key issues being faced by Earth and space science departments. From a historical perspective, the Board of Heads and Chairs has been a venue, through various meetings over the last two decades, for bringing together Heads and Chairs of such departments solutions; discuss and critically evaluate new instruments, facilities, tools, and methodologies; come together on important issues that transcend their own science such as the need for increased computing capacity; develop ways to increase women and minorities numbers in the field and deal with their issues in an equitable manner; discuss news ways to teach, introduction of new courses, establishment of new programs and degrees to fill the community's needs; and broaden their horizons, think in truly interdisciplinary ways and, return to their institutions with increased vigor and new ideas. We are looking to expand the role of the Board for the future, particularly towards being more proactive as a clearinghouse or "point of contact" for helping the represented universities and colleges. This presentation looks at what has been done and the direction of future activities of the Board.

  6. Cox’s Chair Revisited: Can Spinning Alter Mood States?

    Directory of Open Access Journals (Sweden)

    Lotta eWinter

    2013-10-01

    Full Text Available Although there is clinical and historical evidence for a vivid relation between the vestibular and emotional systems, the neuroscientific underpinnings are poorly understood. The spin doctors of the nineteenth century used spinning chairs (e.g. Cox’s chair to treat conditions of mania or elevated arousal. On the basis of a recent study on a hexapod motion simulator, in this prototypic investigation we explore the impact of yaw stimulation on a spinning chair on mood states.Using a controlled experimental stimulation paradigm on a unique 3-D-turntable at the University of Zurich we included 11 healthy subjects and assessed parameters of mood states and autonomic nervous system activity. The Multidimensional Mode State Questionnaire (MDMQ and Visual Analogue Rating Scales (VAS were used to assess changes of mood in response to a 100 sec yaw stimulation. In addition heart rate was continuously monitored during the experiment.Subjects indicated feeling less good, relaxed, comfortable, and calm and reported an increased alertness after vestibular stimulation. However, there were no objective adverse effects of the stimulation. Accordingly, heart rate did not significantly differ in response to the stimulation.This is the first study in a highly controlled setting using the historical approach of stimulating the vestibular system to impact mood states. It demonstrates a specific interaction between the vestibular system and mood states and thereby supports recent experimental findings with a different stimulation technique. These results may inspire future research on the clinical potential of this method.

  7. Bourdieu, Department Chairs and the Reform of Science Education

    Science.gov (United States)

    Melville, Wayne; Hardy, Ian; Bartley, Anthony

    2011-11-01

    Using the insights of the French sociologist, Pierre Bourdieu, this article considers the role of the science department chair in the reform of school science education. Using Bourdieu's 'thinking tools' of 'field', 'habitus' and 'capital', we case study the work of two teachers who both actively pursue the teaching and learning of science as inquiry. One teacher, Dan, has been a department chair since 2000, and has actively encouraged his department to embrace science as inquiry. The other teacher, Leslie, worked for one year in Dan's department before being transferred to another school where science teaching continues to be more traditional. Our work suggests that there are three crucial considerations for chairs seeking to lead the reform of science teaching within their department. The first of these is the development of a reform-minded habitus, as this appears to be foundational to the capital that can be expended in the leadership of reform. The second is an understanding of how to wield power and position in the promotion of reform. The third is the capacity to operate simultaneously and strategically within, and across, two fields; the departmental field and the larger science education field. This involves downplaying administrative logics, and foregrounding more inquiry-focused logics as a vehicle to challenge traditional science-teaching dispositions-the latter being typically dominated by concerns about curriculum 'coverage'.

  8. AACP Strategy for Addressing the Professional Development Needs of Department Chairs

    Science.gov (United States)

    Rodriguez, Tobias E.; Weinstein, George; Sorofman, Bernard A.; Bosso, John A.; Kerr, Robert A.; Haden, N. Karl

    2012-01-01

    Objectives. Characterize the skills and abilities required for department chairs, identify development needs, and then create AACP professional development programs for chairs. Methods. A 30-question electronic survey was sent to AACP member department chairs related to aspects of chairing an academic department. Results. The survey identified development needs in the leadership, management, and personal abilities required for effective performance as department chair. The information was used to prioritize topics for subsequent AACP development programs. Subsequent programs conducted at AACP Interim and Annual Meetings were well attended and generally received favorable reviews from participants. A list of development resources was placed on the AACP website. Conclusions. This ongoing initiative is part of an AACP strategy to identify and address the professional development needs of department chairs. Survey results may also inform faculty members and other academic leaders about the roles and responsibilities of department chairs. PMID:22919099

  9. 后现代椅子设计中的情感性语义表达%Affective Meaning of Post Modern Chair Design

    Institute of Scientific and Technical Information of China (English)

    罗珊; 李博

    2015-01-01

    To analyze the semantic meanings and connotations of extension of the chair form from two aspects of morphology and semantics. Expression of emotion semantic focus form.First, from the objective emotion. Meet the most people can accept the feelings of experience, For chair design personalized based on, Endowed chairs various affective meaning. Rise to the top, Emotion emotional social ethics in the most complex. Related to culture, History, Philosophy, Analysis focused on the chair design with cultural symbols.%以后现代风格为切入点,从形态语义学的两个层面来分析椅子形态的外延性语义和内涵性语义。侧重形态的情感性语义表达,以具体的设计实例分析后现代椅子设计中的情感性语义表达手法。分别从视觉,质感,色彩,历史符号,情绪等方面对其进行分析,从中找出规律,分析其优点与存在的不足,为以后的设计提供指引与借鉴。

  10. 76 FR 2883 - Folding Metal Tables and Chairs From the People's Republic of China: Final Results of 2007-2008...

    Science.gov (United States)

    2011-01-18

    ... individual legs that are affixed together by one or more cross-braces using welds or fastening hardware. In... metal (folding metal chairs). Folding metal chairs include chairs with one or more cross-braces... Staples' ``Complete Office-To-Go,'' a folding chair with a tubular steel frame and a seat and back...

  11. Product design and development for dinner chair of Kansei Engineering

    Directory of Open Access Journals (Sweden)

    Sirichai Yodwangjai

    2014-06-01

    Full Text Available This research investigated the customer’s perception and product properties. The semantic differential method was employed to examine the relationship between customer’s perception and product properties. Fifty-six dinner chairs are selected from website, magazine and publishing and 10 SD words. The product properties divided 8 groups and 34 sub-groups. The new model created base on Quantification Theory Type 1. The research results show 3 high perceptions: comfortable, soft and modern. The research is expected to help support the designer to design a new model that satisfied the customer’s perception.

  12. The Effect of Holding a Research Chair on Scientists’ Impact

    Energy Technology Data Exchange (ETDEWEB)

    Mirnezami, S.R.; Beaudry, C.

    2016-07-01

    This paper examines the effect of holding Canada Research Chair (CRC) on a scientist’s number of citations as a measure of research impact, based on an econometric analysis with combined data on Quebec scientists’ funding and journal publication. Using Generalized Least Square (GLS) method for regression analysis, the results show that holding either tier-1 or tier- 2 of CRC significantly and positively results in conducting research with higher impact. This finding, however, does not necessarily imply that the others are the lesser scientists. (Author)

  13. Benefits of home-based rocking-chair exercise for physical performance in community-dwelling elderly women: a randomized controlled trial.

    Science.gov (United States)

    Niemelä, Kristiina; Väänänen, Ilkka; Leinonen, Raija; Laukkanen, Pia

    2011-08-01

    Home-based exercise is a viable alternative for older adults with difficulties in exercise opportunities outside the home. The aim of this study was to investigate the benefits of home-based rocking-chair training, and its effects on the physical performance of elderly women. Community- dwelling women (n=51) aged 73-87 years were randomly assigned to the rocking-chair group (RCG, n=26) or control group (CG, n=25) by drawing lots. Baseline and outcome measurements were hand grip strength, maximal isometric knee extension, maximal walking speed over 10 meters, rising from a chair five times, and the Berg Balance Scale (BBS). The RCG carried out a six-week rocking-chair training program at home, involving ten sessions per week, twice a day for 15 minutes per session, and ten different movements. The CG continued their usual daily lives. After three months, the RCG responded to a mail questionnaire. After the intervention, the RCG improved and the CG declined. The data showed significant interactions of group by time in the BBS score (p=0.001), maximal knee extension strength (p=0.006) and maximal walking speed (p=0.046), which indicates that the change between groups during the follow-up period was significant. Adherence to the training protocol was high (96%). After three months, the exercise program had become a regular home exercise habit for 88.5% of the subjects. Results indicate that home-based elderly women benefit from this easily implemented rocking-chair exercise program. The subjects became motivated to participate in training and continued the exercises. This is a promising alternative exercise method for maintaining physical activity and leads to improvements in physical performance.

  14. Cardiovascular consequence of reclining vs. sitting beach-chair body position for induction of anesthesia

    DEFF Research Database (Denmark)

    Larsen, Soren L.; Lyngeraa, Tobias S.; Maschmann, Christian P.

    2014-01-01

    The sitting beach-chair position is regularly used for shoulder surgery and anesthesia may be induced in that position. We tested the hypothesis that the cardiovascular challenge induced by induction of anesthesia is attenuated if the patient is placed in a reclining beach-chair position....... Anesthesia was induced with propofol in the sitting beach-chair (n = 15) or with the beach-chair tilted backwards to a reclining beach-chair position (n = 15). The last group was stepwise tilted to the sitting beach-chair position prior to surgery. Hypotension was treated with ephedrine. Continuous...... ± 12 vs. 45 ± 15 % reduction from baseline, p = 0.04) and ScO2 (7 ± 6 vs. 1 ± 8% increase from baseline, p = 0.02) and received less ephedrine (mean: 4 vs. 13 mg, p = 0.048). The higher blood pressure and lower need of vasopressor following induction of anesthesia in the reclining compared...

  15. Cerebral oxygenation in patients undergoing shoulder surgery in beach chair position: comparing general to regional anesthesia and the impact on neurobehavioral outcome.

    Science.gov (United States)

    Aguirre, J; Borgeat, A; Trachsel, T; Cobo Del Prado, I; De Andrés, J; Bühler, P

    2014-02-01

    Ischemic brain damage has been reported in healthy patients after beach chair position for surgery due to cerebral hypoperfusion. Near-infrared spectroscopy has been described as a non-invasive, continuous method to monitor cerebral oxygen saturation. However, its impact on neurobehavioral outcome comparing different anesthesia regimens has been poorly described. In this prospective, assessor-blinded study, 90 patients undergoing shoulder surgery in beach chair position following general (G-group, n=45) or regional anesthesia (R-group; n=45) were enrolled to assess the prevalence of cerebral desaturation events comparing anesthesia regimens and their impact on neurobehavioral and neurological outcome. Anesthesiologists were blinded to regional cerebral oxygen saturation values. Baseline data assessed the day before surgery included neurological and neurobehavioral tests, which were repeated the day after surgery. The baseline data for regional cerebral oxygen saturation/bispectral index and invasive blood pressure both at heart and auditory meatus levels were taken prior to anesthesia, 5 min after induction of anesthesia, 5 min after beach chair positioning, after skin incision and thereafter all 20 min until discharge. Patients in the R-group showed significantly less cerebral desaturation events (p<0.001), drops in regional cerebral oxygen saturation values (p<0.001), significantly better neurobehavioral test results the day after surgery (p<0.001) and showed a greater hemodynamic stability in the beach chair position compared to patients in the G-group. The incidence of regional cerebral oxygen desaturations seems to influence the neurobehavioral outcome. Regional anesthesia offers more stable cardiovascular conditions for shoulder surgery in beach chair position influencing neurobehavioral test results at 24h. Copyright © 2013 Sociedad Española de Anestesiología, Reanimación y Terapéutica del Dolor. Published by Elsevier España. All rights reserved.

  16. Job satisfaction among chairs of surgery from Europe and North America.

    Science.gov (United States)

    Tschuor, Christoph; Raptis, Dimitri Aristotle; Morf, Manuela Christina; Staffelbach, Bruno; Manser, Tanja; Clavien, Pierre-Alain

    2014-11-01

    Strong evidence exists associating job satisfaction and risk of burnout with productivity, efficiency, and creativity in many organizations. However no data are available assessing chairs of surgery. This study assessed job satisfaction and risk for burnout of surgical chairs from Europe and North America and identified contributing factors. A survey among 650 chairs in surgery from 23 European and 2 North American countries was conducted in 2012. Satisfaction at work was analyzed using the validated Global Job Satisfaction (GJS) instrument and the abbreviated Maslach Burnout Inventory. Additional items targeting personal and environmental factors were included. The rate of chairs reached successfully was 86%, the overall response rate was 29% (188/650), with 1% female. Median age was 58 years. 11% of chairs were dissatisfied with work. Younger age and being fewer years in practice as a chair was associated with higher job satisfaction (P = .054 and P = .003). Surgical specialty with the greatest median GJS score was hepatopancreatobiliary, whereas vascular surgery scored lowest. Chairs desire to devote 20% more of their time on research. Clerical support as well as the ability to be innovative was suggested by 51% and 45%, respectively, to improve job satisfaction. Compared with Europeans, North American chairs were overall more satisfied and would recommend their job to their children. North American chairs seem to be more satisfied at work and at less risk for burnout than European chairs. The overall job satisfaction was greater among chairs compared with previously published reports of young, board-certified surgeons or residents (89% vs 87% and 66%, respectively). The superior satisfaction in chairs is strongest related to career achievements, innovation, and lifestyle. Copyright © 2014 Elsevier Inc. All rights reserved.

  17. Ergonomic chair intervention: Effect on chronic upper quadrant dysfunction, disability and productivity in female computer workers

    OpenAIRE

    Hoeben, C.; Q. Louw

    2014-01-01

    AIM: To compare the effect of two ergonomic chairs on upper quadrant musculoskeletal pain and tension, disability and productivity among female computer workers in the office workplace.METHODS: A series of two N=1 studies were conducted using the A-B-A-C-A design whereby an intervention ergonomic chair was compared to a less adjustable control ergonomic chair using visual analogue scales (VAS) for pain and muscle spasm, the Neck Disability Index and the Work Productivity and Activity Impairme...

  18. Chair Design Research (frst)%椅子设计研究(上)

    Institute of Scientific and Technical Information of China (English)

    彭亮

    2015-01-01

    本文对家具设计最重要的主题——椅子进行了较全面的系统研究,分别对椅子造型设计——抽象雕塑与微型建筑的艺术形式;椅子功能设计——人机工程学与舒适坐姿设计;椅子设计的多样性;建筑师与椅子设计;椅子与工业产品设计;椅子与先锋派设计;椅子与设计语义学的联系;椅子设计方法——传承与创新等方面进行了专门的专门的论述。%In this paper, one of the most important theme --- A more comprehensive system study on the chair.Respectively design modelling of the chair --- abstract sculpture and micro architecture form of art;The chair function design---ergonomics and comfortable sitting posture;The diversity of chair design;Architects and chair design;Chair and industrial product design;Chair and avant-garde design;The chair and the contact of design semantics;Chair design method, inheritance and innovation, and so on has carried on the special special paper.

  19. 椅子设计研究(下)%Chair Design Research (sequel)

    Institute of Scientific and Technical Information of China (English)

    彭亮

    2015-01-01

    本文对家具设计最重要的主题——椅子进行了较全面的系统研究,分别对椅子造型设计——抽象雕塑与微型建筑的艺术形式;椅子功能设计——人机工程学与舒适坐姿设计;椅子设计的多样性;建筑师与椅子设计;椅子与工业产品设计;椅子与先锋派设计;椅子与设计语义学的联系;椅子设计方法——传承与创新等方面进行了专门的专门的论述。%In this paper, one of the most important theme --- A more comprehensive system study on the chair.Respectively design modelling of the chair --- abstract sculpture and micro architecture form of art;The chair function design---ergonomics and comfortable sitting posture;The diversity of chair design;Architects and chair design;Chair and industrial product design;Chair and avant-garde design;The chair and the contact of design semantics;Chair design method, inheritance and innovation, and so on has carried on the special special paper.

  20. A competency-based approach to recruiting, developing, and giving feedback to department chairs.

    Science.gov (United States)

    Palmer, Megan; Hoffmann-Longtin, Krista; Walvoord, Emily; Bogdewic, Stephen P; Dankoski, Mary E

    2015-04-01

    Academic health centers (AHCs) are under unprecedented pressure, making strong leadership during these challenging times critical. Department chairs have tremendous influence in their AHCs, yet data indicate that--despite outstanding academic credentials--they are often underprepared to take on these important leadership roles. The authors sought to improve the approach to recruiting, developing, and giving feedback to department chairs at their institution, the Indiana University School of Medicine (IUSM), by reorganizing these processes around six key leadership competencies: leadership and team development, performance and talent management, vision and strategic planning, emotional intelligence, communication skills, and commitment to the tripartite mission. Over a two-year period (2009-2011), IUSM faculty and administrators developed standardized recruitment procedures to assess potential chairs based on the six leadership domains, and searches are now streamlined through centralized staff support in the dean's office. Additionally, IUSM offers a chair development series to support learning around these leadership competencies and to meet the stated professional development needs of the chairs. Finally, chairs receive structured feedback regarding their leadership (among other considerations) through two different assessment instruments, IUSM's Department Chair 360° Leadership Survey and IUSM's Faculty Vitality Survey--both of which the dean reviews annually. Strategically attending to the way that chairs are selected, developed, and given feedback has tremendous potential to increase the success of chairs and, in turn, to constructively shape the culture of AHCs.

  1. A Dangerous New Rise

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    The soaring price of coal used for power generation threatens to push electricity price higher,flaging further fears over inflation China is attempting to dig its way out of the trap of inflation.Standing in its way is the rising price of power- generating coal. In mid-December 2007,coal producers and power plants came to an agreement that the price of power-generating coal would rise 10 percent in 2008,adding 42 billion

  2. Online Dissemination Strategies of a Canada Research Chair: Overview and Lessons Learned

    Science.gov (United States)

    Hébert, Jessica; Robitaille, Hubert; Turcotte, Stéphane

    2017-01-01

    Background Little is known about the use of online dissemination strategies, such as websites and social media, to increase the visibility and uptake of research. Objective To describe two online dissemination strategies of the Canada Research Chair in Implementation of Shared Decision Making in Primary Care over an eight-year period. Methods Our two sources of online dissemination data were the website of the Canada Research Chair in Implementation of Shared Decision Making in Primary Care and the Chair’s Twitter account. We conducted a content analysis of the news section of the website. We extracted website usage statistics using Google Analytics and analyzed indicators such as total number of visits, new and returning visitors, page views per visit, time spent onsite per visit, visitors’ country of origin, and most popular pages. From the Chair’s Twitter account, we collected the number of tweets, followers, and follows. We consulted Google Scholar to chart the trend in citations of the Chair’s articles over the same period. Results From the website’s inception in January 2008 to December 2015, we recorded an average of 7906 visits per year (3809 in 2008; 8874 in 2015), 65.85% of which involved new visitors (5206/7906). The average number of pages viewed per visit was 3.2 and average bounce rate was 57.87% (4575/7906). Visitors spent an average of two minutes and 12 seconds per visit. We computed visits from 162 countries, with the majority from Canada (5910/7906, 74.75%). In order of frequency, the seven most visited pages were: (1) home page with news of publications and grants (24,787 visits), (2) profile of Chairholder (8041 visits), (3) profiles of research team members (6272 visits), (4) list of research team members (4593 visits), (5) inventory of shared decision making (SDM) programs (1856 visits), (6) interprofessional approaches to SDM (1689 visits), and (7) description of Chair activities (1350 visits). From the inception of the Twitter

  3. Specialization and generalization in the diversification of phytophagous insects: tests of the musical chairs and oscillation hypotheses

    Science.gov (United States)

    Hardy, Nate B.; Otto, Sarah P.

    2014-01-01

    Evolutionary biologists have often assumed that ecological generalism comes at the expense of less intense exploitation of specific resources and that this trade-off will promote the evolution of ecologically specialized daughter species. Using a phylogenetic comparative approach with butterflies as a model system, we test hypotheses that incorporate changes in niche breadth and location into explanations of the taxonomic diversification of insect herbivores. Specifically, we compare the oscillation hypothesis, where speciation is driven by host-plant generalists giving rise to specialist daughter species, to the musical chairs hypothesis, where speciation is driven by host-plant switching, without changes in niche breadth. Contrary to the predictions of the oscillation hypothesis, we recover a negative relationship between host-plant breadth and diversification rate and find that changes in host breadth are seldom coupled to speciation events. By contrast, we present evidence for a positive relationship between rates of host switching and butterfly diversification, consonant with the musical chairs hypothesis. These results suggest that the costs of trophic generalism in plant-feeding insects may have been overvalued and that transitions from generalists to ecological specialists may not be an important driver of speciation in general. PMID:25274368

  4. Human Vestibular Function, Rotating Litter Chair - Skylab Experiment M131

    Science.gov (United States)

    1970-01-01

    This 1970 photograph shows the Rotating Litter Chair, a major component of Skylab's Human Vestibular Function experiment (M131). The experiment was a set of medical studies designed to determine the effect of long-duration space missions on astronauts' coordination abilities. The M131 experiment tested the astronauts susceptibility to motion sickness in the Skylab environment, acquired data fundamental to an understanding of the functions of human gravity reception under prolonged absence of gravity, and tested for changes in the sensitivity of the semicircular canals. Data from this experiment was collected before, during, and after flight. The Marshall Space Flight Center had program management responsibility for the development of Skylab hardware and experiments.

  5. Airline chair-rest deconditioning: induction of immobilisation thromboemboli?

    Science.gov (United States)

    Greenleaf, John E.; Rehrer, Nancy J.; Mohler, Stanley R.; Quach, David T.; Evans, David G.

    2004-01-01

    Air passenger miles will likely double by year 2020. The altered and restrictive environment in an airliner cabin can influence haematological homeostasis in passengers and crew. Flight-related deep venous thromboemboli (DVT) have been associated with at least 577 deaths on 42 of 120 airlines from 1977 to 1984 (25 deaths/million departures), whereas many such cases go unreported. However, there are four major factors that could influence formation of possible flight-induced DVT: sleeping accommodations (via sitting immobilisation); travellers' medical history (via tissue injury); cabin environmental factors (via lower partial pressure of oxygen and lower relative humidity); and the more encompassing chair-rest deconditioning (C-RD) syndrome. There is ample evidence that recent injury and surgery (especially in deconditioned hospitalised patients) facilitate thrombophlebitis and formation of DVT that may be exacerbated by the immobilisation of prolonged air travel.In the healthy flying population, immobilisation factors associated with prolonged (>5 hours) C-RD such as total body dehydration, hypovolaemia and increased blood viscosity, and reduced venous blood flow (pooling) in the legs may facilitate formation of DVT. However, data from at least four case-controlled epidemiological studies did not confirm a direct causative relationship between air travel and DVT, but factors such as a history of vascular thromboemboli, venous insufficiency, chronic heart failure, obesity, immobile standing position, more than three pregnancies, infectious disease, long-distance travel, muscular trauma and violent physical effort were significantly more frequent in DVT patients than in controls. Thus, there is no clear, direct evidence yet that prolonged sitting in airliner seats, or prolonged experimental chair-rest or bed-rest deconditioning treatments cause DVT in healthy people.

  6. Airline Chair-rest Deconditioning: Induction of Immobilization Thromboemboli?

    Science.gov (United States)

    Greenleaf, J. E.; Rehrer, N. J.; Mohler, S. R.; Quach, D. T.; Evans, D. G.; Dalton, Bonnie P. (Technical Monitor)

    2002-01-01

    Air passenger miles will likely double by year 2020. The altered and restrictive environment in an airliner cabin can influence hematological homeostasis in passengers and crew. Flight-related deep various thromboemboli (DVT) have been associated with at least 577 deaths on 42 of 120 airlines from 1977 to 1984 (25 deaths/million departures), whereas many such cases go unreported. However, there are four major factors that could influence formation of possible flight-induced DVT: sleeping accomodations (via sitting immobilization), travelers' medical history (via tissue injury), cabin environmental factors (via lower partial pressure of oxygen and lower relative humidity), and the more encompassing chair-rest deconditioning (C-RD) syndrome. There is ample evidence that recent injury and surgery (especially in deconditioned hospitalized patients) facilitate thrombophlebitis and formation of DVT that may be exacerbated by the immobilization of prolonged air travel. In the healthy flying population immobilization factors associated with prolonged (> 5 hr) C-RID such as total body dehydration, hypovolemia and increased blood viscosity, and reduced various blood flow (pooling) in the legs may facilitate formation of DVT. However, data from at least four case-controlled epidemiological studies did not confirm a direct causative relationship between air travel and DART, but factors such as history of vascular thromboemboli, various insufficiency, chronic heart failure, obesity, immobile standing position, more than 3 pregnancies, infectious disease, long-distance travel, muscular trauma and violent physical effort were significantly more frequent in DVT patients than in controls. Thus, there is no clear, direct evidence yet that prolonged sitting in airliner seats, or prolonged experimental chair-rest- or bed- rest-deconditioning treatments cause deep various thromboemboli in healthy people.

  7. The Rise of China

    Institute of Scientific and Technical Information of China (English)

    Yang Shouming; Cheng Youzhong

    2007-01-01

    Shared ideas wield a decisive influence on a country's external behavior. How China's rise will impact the world is determined by ideas shared by the international community. The identity and role of an emerging China is shaped not merely by its own material factors and subjective efforts. It is also constructed through China's interaction with other countries. The idea of a harmonious culture may eliminate international concerns about China's rise at the root, but this culture needs to be constructed by all the countries in the world.

  8. The Chair and the New President: Getting the First Months Right

    Science.gov (United States)

    Riggs, Janet Morgan; Duelks, Robert

    2012-01-01

    Gettysburg College President Janet Morgan Riggs and Board Chair Robert N. Duelks are both members of the Gettysburg class of 1977, but did not know each other as students. As a member of the college's board of trustees, Duelks chaired the presidential search committee that selected Riggs as Gettysburg's 14th president in 2009. Then, one year after…

  9. The Body Language Behaviours of the Chairs of the Disputes According to the Disputants

    Science.gov (United States)

    Caliskan, Nihat

    2009-01-01

    The perception form of the body language behaviours of the session chairs by disputants affects the efficiency of the process. Therefore, it is important to determine the effects of the mimic, gesture, physical appearance and tonality and accent of the chairs on disputants. That research was conducted to clarify how the disputants perceive the…

  10. 21 CFR 878.4950 - Manual operating table and accessories and manual operating chair and accessories.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Manual operating table and accessories and manual... Surgical Devices § 878.4950 Manual operating table and accessories and manual operating chair and accessories. (a) Identification. A manual operating table and accessories and a manual operating chair...

  11. Musculoskeletal discomfort during VDU tasks; input for a smart office chair

    NARCIS (Netherlands)

    Commissaris, D.A.C.M.; Blok, M.; Bosch, T.; Konemann, R.; Bronkhorst, R.

    2008-01-01

    TNO and BMA Ergonomics are developing a so-called smart office chair. This chair is supposed to provide feedback on postures and movements during seated office work. The feedback should enable the user (i.e. the worker doing VDU tasks) to perform his or her work with less discomfort and in a more pr

  12. Joint or clinical chairs in nursing: from cup of plenty to poisoned chalice?

    Science.gov (United States)

    Darbyshire, Philip

    2010-11-01

    This paper presents a discussion of the current state of joint chair or clinical chair positions in nursing. Background.  Joint chair positions in nursing or midwifery have been popular approaches to developing clinical research and to bridging the 'theory-practice gap'. Recent personal observations and commentaries in the literature suggest that the service-academy consensus that underpinned such positions may be crumbling. This paper is based on 13 years' experience of holding a joint chair position, an extensive review of the professional literature (up to and including 2009 sources), and conversations and discussions with many professorial and joint chair colleagues. Despite its demonstrated success, the joint chair position may be under threat from competing and unrealistic demands from partner organizations and from changing understandings of the essential role and nature of a professor. The situation may be exacerbated by appointing inexperienced or unsuitable applicants to such key posts. The joint chair position was a powerful initiative in nursing and midwifery with real potential. In the current climate, this potential is unlikely to be realized and nursing will be the poorer. If joint chair positions are still valued and seen as key roles in developing clinical research and university-service partnerships, then serious consideration needs to be given to the current state of position. I argue for a return to trust and what Onora O'Neill calls 'intelligent accountability' rather than the micromanagement that is so prevalent in both the health and academic industries. © 2010 Blackwell Publishing Ltd.

  13. The Body Language Behaviours of the Chairs of the Disputes According to the Disputants

    Science.gov (United States)

    Caliskan, Nihat

    2009-01-01

    The perception form of the body language behaviours of the session chairs by disputants affects the efficiency of the process. Therefore, it is important to determine the effects of the mimic, gesture, physical appearance and tonality and accent of the chairs on disputants. That research was conducted to clarify how the disputants perceive the…

  14. Office task effects on comfort and body dynamics in five dynamic office chairs

    NARCIS (Netherlands)

    Groenesteijn, L.; Ellegast, R.P.; Keller, K.; Krause, F.; Berger, H.; Looze, M.P.de

    2012-01-01

    In the present study, we investigated the effect of office tasks on posture and movements in field settings, and the comfort rating for chair characteristics and correlation with type of task. The tasks studied were: computer work, telephoning, desk work and conversation. Postures, movements, chair

  15. Administrative Challenges and Response Strategies to the Job Performance of Marketing Department Chairs.

    Science.gov (United States)

    Dyer, Beverly G.; Miller, Michael T.

    This study reports on the job challenges and corresponding response strategies that department chairs at graduate and undergraduate colleges and universities encounter and rely upon. Literature and research related to marketing department chairs, marketing education, and marketing majors indicates that business schools have come under attack by…

  16. Ergonomic chair intervention: Effect on chronic upper quadrant dysfunction, disability and productivity in female computer workers

    Directory of Open Access Journals (Sweden)

    C. Hoeben

    2014-12-01

    Full Text Available AIM: To compare the effect of two ergonomic chairs on upper quadrant musculoskeletal pain and tension, disability and productivity among female computer workers in the office workplace.METHODS: A series of two N=1 studies were conducted using the A-B-A-C-A design whereby an intervention ergonomic chair was compared to a less adjustable control ergonomic chair using visual analogue scales (VAS for pain and muscle spasm, the Neck Disability Index and the Work Productivity and Activity Impairment questionnaire. The female participants were assessed over the four week phases as they performed high intensity visual display unit work. The results were compiled and tabulated.RESULTS: Both the control and intervention ergonomic chairs showed a reduction in both the mean and variance of pain and muscle spasm. The second participant also showed an increase in productivity with both chairs.CONCLUSION: The introduction of an ergonomic chair shows a reduction in VAS intensity and frequency for pain and muscle spasm, as well as a reduction in variance of the symptoms. Both chairs showed a similar reduction in symptoms, thus indicating almost equivalent benefit from the use of both ergonomic chairs.

  17. Office task effects on comfort and body dynamics in five dynamic office chairs

    NARCIS (Netherlands)

    Groenesteijn, L.; Ellegast, R.P.; Keller, K.; Krause, F.; Berger, H.; Looze, M.P.de

    2012-01-01

    In the present study, we investigated the effect of office tasks on posture and movements in field settings, and the comfort rating for chair characteristics and correlation with type of task. The tasks studied were: computer work, telephoning, desk work and conversation. Postures, movements, chair

  18. The East Pacific Rise

    NARCIS (Netherlands)

    NN,

    1961-01-01

    Evidence gathered by expeditions of the University of California’s Scripps Institution of Oceanography during the International Geophysical Year suggests that the East Pacific Rise is one of the largest physical structures on earth. It runs in a sickle-shaped curve from near New Zealand 8,000 miles

  19. Natural Gas Price Rises

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ As was projected in the third-quarter monetary policy implementation report published by the People's Bank of China on November 15th, 2006, the residents' consumption price index in China would reach 1.5% in 2006. Prices of consumer commodities such as water, power and natural gas would rise and the pressure of inflation would persist in the future.

  20. The East Pacific Rise

    NARCIS (Netherlands)

    NN,

    1961-01-01

    Evidence gathered by expeditions of the University of California’s Scripps Institution of Oceanography during the International Geophysical Year suggests that the East Pacific Rise is one of the largest physical structures on earth. It runs in a sickle-shaped curve from near New Zealand 8,000 miles

  1. Repeat-until-success quantum repeaters

    Science.gov (United States)

    Bruschi, David Edward; Barlow, Thomas M.; Razavi, Mohsen; Beige, Almut

    2014-09-01

    We propose a repeat-until-success protocol to improve the performance of probabilistic quantum repeaters. Conventionally, these rely on passive static linear-optics elements and photodetectors to perform Bell-state measurements (BSMs) with a maximum success rate of 50%. This is a strong impediment for entanglement swapping between distant quantum memories. Every time a BSM fails, entanglement needs to be redistributed between the corresponding memories in the repeater link. The key ingredients of our scheme are repeatable BSMs. Under ideal conditions, these turn probabilistic quantum repeaters into deterministic ones. Under realistic conditions, our protocol too might fail. However, using additional threshold detectors now allows us to improve the entanglement generation rate by almost orders of magnitude, at a nominal distance of 1000 km, compared to schemes that rely on conventional BSMs. This improvement is sufficient to make the performance of our scheme comparable to the expected performance of some deterministic quantum repeaters.

  2. DOE Chair of Excellence Professorship in Environmental Disciplines

    Energy Technology Data Exchange (ETDEWEB)

    Shoou-Yuh Chang

    2013-01-31

    The United States (US) nuclear weapons program during the Cold War left a legacy of radioactive, hazardous, chemical wastes and facilities that may seriously harm the environment and people even today. Widespread public concern about the environmental pollution has created an extraordinary demand for the treatment and disposal of wastes in a manner to protect the public health and safety. The pollution abatement and environmental protection require an understanding of technical, regulatory, economic, permitting, institutional, and public policy issues. Scientists and engineers have a major role in this national effort to clean our environment, especially in developing alternative solutions and evaluation criteria and designing the necessary facilities to implement the solutions. The objective of the DOE Chair of Excellence project is to develop a high quality educational and research program in environmental engineering at North Carolina A&T State University (A&T). This project aims to increase the number of graduate and undergraduate students trained in environmental areas while developing a faculty concentrated in environmental education and research. Although A&T had a well developed environmental program prior to the Massie Chair grant, A&T's goal is to become a model of excellence in environmental engineering through the program's support. The program will provide a catalyst to enhance collaboration of faculty and students among various engineering departments to work together in a focus research area. The collaboration will be expanded to other programs at A&T. The past research focus areas include: hazardous and radioactive waste treatment and disposal fate and transport of hazardous chemicals in the environment innovative technologies for hazardous waste site remediation pollution prevention Starting from 2005, the new research focus was in the improvement of accuracy for radioactive contaminant transport models by ensemble based data assimilation

  3. The Rise of Iran

    DEFF Research Database (Denmark)

    Rahigh-Aghsan, Ali

    Iran is viewed as a rising power that poses an increasing threat to regional and even global security. This view is wrong for three reasons. Iran's hard and soft power is exaggerated by most accounts; it is too limited to allow the Iranians to dominate the Persian Gulf let alone the Middle East......, and its brand of Shi‘ism  has very limited appeal outside of Iran. Second, growing internal political and economic instability will seriously limit Iran's bid for regional dominance. Third, the failure to stop the Iranian nuclear program has led analysts to underestimate the ability of the other regional...... powers and the West to balance Iran and contain its influence, even if it acquires nuclear weapons. If these limitations on Iranian power are taken into account the rise seems destined to be a short one....

  4. The Rise of Iran

    DEFF Research Database (Denmark)

    Jakobsen, Peter Viggo; Rahigh-Aghsan, Ali

    2010-01-01

    Iran is viewed by many as a rising power that poses an increasing threat to regional and even global security. This view is wrong for three reasons. Iran's hard and soft power is exaggerated by most accounts; it is too limited to allow the Iranians to dominate the Persian Gulf let alone the Middle...... East, and its brand of Shi‘ism has very limited appeal outside of Iran. Second, growing internal political and economic instability will seriously limit Iran's bid for regional dominance. Third, the failure to stop the Iranian nuclear program has led analysts to underestimate the ability of the other...... regional powers and the West to balance Iran and contain its influence, even if it acquires nuclear weapons. If these limitations on Iranian power are taken into account the rise seems destined to be a short one....

  5. The Rise of Iran

    DEFF Research Database (Denmark)

    Rahigh-Aghsan, Ali; Jakobsen, Peter Viggo

    2010-01-01

    Iran is viewed as a rising power that poses an increasing threat to regional and even global security. This view is wrong for three reasons. Iran's hard and soft power is exaggerated by most accounts; it is too limited to allow the Iranians to dominate the Persian Gulf let alone the Middle East......, and its brand of Shi‘ism has very limited appeal outside of Iran. Second, growing internal political and economic instability will seriously limit Iran's bid for regional dominance. Third, the failure to stop the Iranian nuclear program has led analysts to underestimate the ability of the other regional...... powers and the West to balance Iran and contain its influence, even if it acquires nuclear weapons. If these limitations on Iranian power are taken into account the rise seems destined to be a short one....

  6. A Rising Consumer Class

    OpenAIRE

    Manish Sonthalia

    2010-01-01

    India has had two stages of growth, both related to consumption since 1947. The first was based on developing economic self sufficiency; the second on rising disposable income. It is now entering its third period of consumption growth which sees it entering the world stage as one of the largest consumers in the world. This paper explains the factors that are driving this dramatic shift from the emerging middle classes to the patterns of consumption and investment in India today.

  7. Contemporary sea level rise.

    Science.gov (United States)

    Cazenave, Anny; Llovel, William

    2010-01-01

    Measuring sea level change and understanding its causes has considerably improved in the recent years, essentially because new in situ and remote sensing observations have become available. Here we report on most recent results on contemporary sea level rise. We first present sea level observations from tide gauges over the twentieth century and from satellite altimetry since the early 1990s. We next discuss the most recent progress made in quantifying the processes causing sea level change on timescales ranging from years to decades, i.e., thermal expansion of the oceans, land ice mass loss, and land water-storage change. We show that for the 1993-2007 time span, the sum of climate-related contributions (2.85 +/- 0.35 mm year(-1)) is only slightly less than altimetry-based sea level rise (3.3 +/- 0.4 mm year(-1)): approximately 30% of the observed rate of rise is due to ocean thermal expansion and approximately 55% results from land ice melt. Recent acceleration in glacier melting and ice mass loss from the ice sheets increases the latter contribution up to 80% for the past five years. We also review the main causes of regional variability in sea level trends: The dominant contribution results from nonuniform changes in ocean thermal expansion.

  8. Low Profile, High Impact: Four Case Studies of High School Department Chairs Whose Transactions "Transform" Teachers and Administrators.

    Science.gov (United States)

    Wettersten, Jill A.

    This paper explores the leadership strategies of four exemplary high school department chairs. It develops a model based on social-exchange theory to show how chairs, as middle managers, must satisfy the expectations of both teachers and administrators. Data were derived from a case study of department chairs identified as exemplary in four…

  9. Systemic discrimination and the Canada Research Chairs: diagnosis and treatment.

    Science.gov (United States)

    Neuman, Shirley

    2003-02-01

    If we are held more accountable for the appointment of women to the CRCs, if we take steps to ensure that nominations to the national CRCs committee are the result of a process that encourages applications directly from women candidates--and that includes a university-wide competition and peer review based on rigorous external assessment of candidates--and if we proactively and self-consciously seek to identify potential women candidates, we will have gone a long distance toward coupling equity and excellence in this program. If we add to these initiatives the training of search committees in successful strategies for identifying and recruiting women candidates, and the creation of employment conditions that acknowledge the reality of women's lives, including the reality of academic partners who need and merit academic positions, we will have gone an even greater distance toward success in appointing distinguished women to these prestigious Chairs. Moreover, we will have created practices that will serve us well in recruiting first-rate women to other academic appointments and that, in a virtuous circle, will improve the "pool" for future CRCs appointments.

  10. Design of the advanced commode-shower chair for spinal cord-injured individuals.

    Science.gov (United States)

    Malassigné, P; Nelson, A L; Cors, M W; Amerson, T L

    2000-01-01

    The purpose of this development project was to design a new commode-shower chair that can be safely used by individuals with spinal cord injuries (SCI) and their caregivers. The need for this new design was consumer-driven. Patients and caregivers identified the following fatal flaws in the commode-shower chairs used in Spinal Cord Injury (SCI) centers: 1) risk for patient falls during transfers, propelling, and while leaning over for showering; 2) risk for pressure ulcers due to inadequate padding and seat positioning for lengthy bowel care regimes; 3) inadequate caregiver access to the perianal area of the patient to perform bowel care procedures; and, 4) wheel-related inability to properly position the chair directly over the toilet. The new, self-propelled chair addresses each of these concerns. Lockable, swing-away, pivoting armrests and improved, lever-activated brakes were designed to facilitate safe transfers. An innovative foot-lift was invented to facilitate washing of feet. Larger handrims were designed to aid in propulsion in wet environments. To prevent pressure ulcers, a chair frame and padding combination was designed to facilitate a seating position that optimally distributes body weight to prevent the development of pressure ulcers in the sacral and ischial areas. To address the common risk of heel ulcers, footrests, featuring edgeless, rounded heel cups, were designed. A new tubular chair frame, a new seat and smaller wheels were designed to enhance caregiver access and ensure proper chair positioning over the toilet. Following its successful clinical evaluation at the Milwaukee and Tampa VA Medical SCI Centers, the Advanced commode-shower chair is being patented by the Department of Veterans Affairs (VA). The VA has partnered with Everest & Jennings, to make this chair available commercially.

  11. Does chair type influence outcome in the timed "Up and Go" test in older persons?

    Science.gov (United States)

    Kalula, S Z; Swingler, G H; Sayer, A A; Badri, M; Ferreira, M

    2010-04-01

    To test the effects of the use of a collapsible, portable chair (chair B), as opposed to a 'standard' chair (chair A), on the outcome of the timed "Up and Go" (TUG) test. Cross-sectional. Multipurpose senior centres. Mobile older persons (N=118, mean age 77 years (range 62-99 years)). Time to complete the timed "Up and Go" test using chair A and chair B, and inter-rater agreement in the time scores. Time taken to complete the TUG test did not differ by chair type [median (interquartile range, IQR) = 12.3 (9.53-15.9) and 12.6 (9.7-16.6)] seconds for Chair A and B respectively, p-value=0.87. In multiple regression analyses, factors that impacted on time difference in test performance for the two chairs were use of a walking aid during the test [Odds ratio (OR) = 3.7 95%CI 1.1-11.9, p=0.031], observed difficulty with mobility (OR= 27.7 95%CI 2.6-290, p=0.006), and a history of arthritis in the knees (OR= 2.9 95%CI 1.0-8.7, P=0.05). In an inter-rater agreement analysis, no significant difference was found between time scores recorded by the two raters; median (IQR) = 12.4 (10.9-15.9) and 12.3 (7.2-59.1) seconds for the occupation therapist and for the research assistant, respectively (Wilcoxon matched pairs test, p=0.124, Spearman correlation coefficient = 0.99, p test in field settings where field workers are reliant on public transport.

  12. SU-C-19A-05: Treatment Chairs for Modern Radiation Therapy Treatments

    Energy Technology Data Exchange (ETDEWEB)

    Court, L; Fullen, D; Tharp, K; Palmer, J; Ungchusri, G; Reyes, L; Tong, T; Nguyen, S; Phillips, T; Balter, P [UT MD Anderson Cancer Center, Houston, TX (United States)

    2014-06-15

    Purpose: Treating patients in a seated position has potential advantages including improved comfort, increased lung volume, and reduced respiratory motion. We compared chair designs for head and neck, thoracic and breast patients for use with either IGRT linacs or a proposed low-cost fixed horizontal beam-line machine. Methods: Three treatment chairs were designed and constructed. Two of the chairs are based on a massage-chair, with the patient angled slightly forwards and knee rests used to minimize intra-fraction slouch. The third chair design is more conventional; the patient is angled backwards, with indexed positioning devices and the ability to attach thermoplastic masks. Patient geometries, including PTV location and patient sizes, were extracted from 137 CTs of past patients were used to model the probability of collision between the patient and the linac for various seated positions. All chairs were designed around the weight limits for couches on our linacs. At the time of writing we have just received IRB approval for imaging studies to evaluate comfort, and intra- and interfraction reproducibility. Results: The geometric analysis showed that head and neck patients and thoracic patients could be treated without collision. However, there is very limited space between the patient and the treatment/imaging devices, so careful design of the chair is essential. The position of the treatment target and extended arm positioning means that this is a particular concern for thoracic and breast patients. This was demonstrated for one of the prototype chairs designed for breast treatment where the arm holders would collide with the kV detector. The extra clearance of a dedicated fixed-beam linac would overcome these difficulties. Intra- and inter-fraction reproducibility results will be presented at the meeting. Conclusion: To take advantage of the clinical advantages of seated treatments, appropriate treatment chairs are needed. A dedicate fixed-beam linac may

  13. Review - The Sun Rises

    Directory of Open Access Journals (Sweden)

    Mark Bender

    2012-12-01

    Full Text Available Review of: Blackburn, Stuart H. 2010. The Sun Rises: A Shaman's Chant, Ritual Exchange and Fertility in the Apatani Valley. Leiden: Brill. xvii+401. Color and black and white photographs, maps. ISBN: 9789-0041-7578-5 (hardcover, 97USD. The Sun Rises is a model study contextualizing an oral narrative tradition in the social and ritual fabric of a remote community in northeast India. In many ways a companion volume to Himalayan Tribal Tales (Blackburn 2008, the text presents the first substantial translation of a key ritual text of the Apantani Valley dwellers in Arunachal Pradesh, located on the contested border between China (Tibet and India. The Apatani speak a Tibeto-Burman language, practice intensive rice agriculture in carefully terraced fields, and number about 35,000. Their clans populate several centuries-old villages. Until recently, they were separated from the lowlands of Assam and surrounded only by peoples practicing various forms of shifting agriculture. The valley dwellers have increasingly encountered modernization over the last few decades, including Indian and global popular culture, and Christianity. The heart of this book is a chant of nineteen segments.

  14. Samuel P. Massie Chair of Excellence in Environmental Disciplines

    Energy Technology Data Exchange (ETDEWEB)

    Adeyiga, Adeyinka A.

    2014-12-17

    The establishment of the DOE-EM Dr. Samuel P. Massie Chair of Excellence provides an excellent opportunity for Hampton University to be involved in key environmental issues in the 21st Century. The main areas of focus are on: 1. Coal gasification with respect to pollution prevention and reduction. 2. Solid waste treatment through bioremediation technology and 3. Industrial wastewater treatment Synthesizing ion catalysts suitable for use in slurry bubble column reaction was carried out. Construction of an autoclave continuous stirred tank reactor has been completed. At the initial stage of the development of this program, work was conducted in the area of formic acid recovery from waste streams, which yielded useful results. We also succeeded in the removal of priority metal ions such as cadmium, chromium, copper, lead, mercury, nickel, silver, thallium, zinc, etc., from industrial and municipal wastewater by using natural wastes. The process uses tree leaves to adsorb the metal ions in the wastewater. The ultimate goal is to develop inexpensive, highly available, effective metal ion adsorbents from natural wastes as an alternative to existing commercial adsorbents, and also to explain the possible adsorption mechanism that is taking place. This technology uses natural wastes to eliminate other wastes. Obviously, there are several advantages: (1) the negative impact on environment is eliminated, (2) the complicated regeneration step is not needed, and (3) the procedure saves money and energy. Twelve different types of leaves have been tested with lead, zinc, and nickel. The study mechanism showed that the leaf tannin is an active ingredient in the adsorption of metal ions. The ion-exchange mechanism controlled the adsorption process.

  15. Chair Professors and Visiting Professors of "Chang Jiang Scholars Program"

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    In responding to the ongoing development needs of the university, we are seeking to recruit Chair Professors and Visiting Professors of "Chang Jiang Scholars Program" at home and abroad. School of Medicine, Tsinghua University

  16. The Trial: A Parable of a Department Chair before the Law of the Budget.

    Science.gov (United States)

    Beja, Morris

    1994-01-01

    Discusses the seemingly contradictory nature of chairing an English department by highlighting the opposing impulses faced, especially as related to funding. Presents the situation in the form of a parable similar to a work by Franz Kafka. (HB)

  17. The Trial: A Parable of a Department Chair before the Law of the Budget.

    Science.gov (United States)

    Beja, Morris

    1994-01-01

    Discusses the seemingly contradictory nature of chairing an English department by highlighting the opposing impulses faced, especially as related to funding. Presents the situation in the form of a parable similar to a work by Franz Kafka. (HB)

  18. Mahmood Khan honored with first Brahim's Chair at Universiti Putra Malaysia in Kuala Lumpur

    OpenAIRE

    Micale, Barbara L.

    2010-01-01

    Mahmood Khan, professor, Department of Hospitality and Tourism Management, Pamplin College of Business, National Capital Region, received the first Brahim's Chair in Foodservice and Hospitality Management from the Universiti Putra Malaysia, Kuala Lumpur, during a recent banquet and ceremony.

  19. Trapezius Muscle Activity in using Ordinary and Ergonomically Designed Dentistry Chairs

    Directory of Open Access Journals (Sweden)

    O Haddad

    2012-03-01

    Full Text Available Background: Most dentists complain of musculoskeletal disorders which can be caused by prolonged static posture, lack of suitable rest and other physical and psychological problems. Objective: We evaluated a chair with a new ergonomic design which incorporated forward leaning chest and arm supports. Methods: The chair was evaluated in the laboratory during task simulation and EMG analysis on 12 students and subjectively assessed by 30 professional dentists using an 18-item questionnaire. EMG activity of right and left trapezius muscles for 12 male students with no musculoskeletal disorders was measured while simulating common tasks like working on the teeth of the lower jaw. Results: Normalized EMG data showed significant reduction (p<0.05 in all EMG recordings of the trapezius muscle. Dentists also unanimously preferred the ergonomically designed chair. Conclusion: Such ergonomically designed chairs should be introduced as early as possible in student training before bad postural habits are acquired.

  20. Effect of chair types on work-related musculoskeletal discomfort during vaginal surgery.

    Science.gov (United States)

    Singh, Ruchira; Carranza Leon, Daniel A; Morrow, Melissa M; Vos-Draper, Tamara L; Mc Gree, Michaela E; Weaver, Amy L; Woolley, Sandra M; Hallbeck, Susan; Gebhart, John B

    2016-11-01

    Evidence supports that surgeons are at high risk for work-related musculoskeletal disorders. The objective of the study was to compare the effect of different chairs on work-related musculoskeletal discomfort for surgeons during vaginal operations. This crossover study randomly assigned 4 surgeons to 4 chair types using a 4 × 4 Latin square model: a conventional round stool, a round stool with a backrest, a saddle chair with a backrest, and a Capisco chair. Subjective assessments of surgeon discomfort were performed with a validated body discomfort survey, and workload was assessed with the surgical task load index. The objective postural load was quantified with inertial measurement units of the modified rapid upper limb assessment limits. Subjective and objective assessments of chair comfort were performed with an 11 point scale and seat interface pressure-mapped distributions, respectively. The primary outcome was the difference in body discomfort scores between pre- and postsurgery measurements. Secondary outcomes were the differences in chair comfort scores, postural load, and seating interface pressure-mapped distribution. For each outcome, comparisons among the chair types were based on fitting a linear mixed model that handled the surgeon as a random effect and the chair type as a fixed effect. Data were collected for 48 vaginal procedures performed for pelvic organ prolapse. Mean (SD) duration of surgery was 122.3 (25.1) minutes. Surgeons reported body discomfort during 31 procedures (67.4%). Subjective increase in discomfort from the preoperative state was noted most commonly in the lower back (n = 14, 30.4%), followed by right shoulder (n = 12, 26.1%), upper back (n = 8, 17.4%), hips and buttocks (n = 7, 15.2%), left shoulder (n = 6, 13.0%), right or left thigh (n = 6, 13.0%), and neck (n = 6, 13.0%). Pre- and postsurgery body discomfort scores did not differ with respect to chair type. Chair discomfort scores for the round stool and the saddle

  1. 75 FR 17701 - Environmental Management Site-Specific Advisory Board Chairs

    Science.gov (United States)

    2010-04-07

    ... 28, 2010 EM Program Update, Priorities, and American Recovery and Reinvestment Act Discussion EM SSAB Chairs' Round Robin: Top Three Site-Specific Issues, EM SSAB Accomplishments, and Major Board...

  2. Designing leadership chairs: Experiments with affirmative critique of leadership and environmentality

    Directory of Open Access Journals (Sweden)

    Malou Juelskjær

    2016-12-01

    Full Text Available Through a methodology of having students ‘design’ leadership chairs, we investigate how contemporary leadership and governing operate by orchestrating affects and strategically shaping the physical environment in order to transform and shape intensities, desires, atmospheres, and social relations. By presenting a pedagogical framing as ‘a posthuman sensorium’, with its design of leadership chairs and art of conversation, we invite engagement with dilemmas and problems of contemporary organizing processes as a careful affirmative critique.

  3. Managing osteoarthritis: comparisons of chair yoga, Reiki, and education (pilot study).

    Science.gov (United States)

    Park, Juyoung; McCaffrey, Ruth; Dunn, Dorothy; Goodman, Rhonda

    2011-01-01

    The aim of this pilot study was to determine whether chair yoga and Reiki affect pain, depressive mood, and physical function compared with an educational program for older adults with osteoarthritis. Findings showed significant relationships only between physical function and chair yoga. In focus group interviews, participants expressed feelings of improved health and well-being after the yoga intervention. The major limitation of this study was the small sample size.

  4. Severe cerebral desaturation during shoulder arthroscopy in the beach-chair position

    DEFF Research Database (Denmark)

    Dippmann, Christian; Winge, Søren; Nielsen, Henning Bay

    2010-01-01

    During shoulder arthroscopy in the beach-chair position, cerebral ischemia may be a serious complication because prolonged hypotension may affect regional cerebral oxygen supply. We present the cases of 2 patients in whom a reduction in mean arterial pressure after anesthesia provoked a decrease...... cerebral oxygenation. During surgery in the beach-chair position, hypotension must be avoided, and in all patients regional, cerebral oxygenation should be monitored and optimized....

  5. Effect of Furniture Weight on Carrying, Lifting, and Turning of Chairs and Desks among Elementary School Children.

    Directory of Open Access Journals (Sweden)

    Lu'lu' Purwaningrum

    Full Text Available Rearranging furniture in elementary school classrooms encourages classroom activities. In elementary schools in Indonesia and some other developing countries, usually only one style of furniture is used for all children, and the furniture is heavy and oversized for younger children. This affects their ability to carry it. The objective of this study is to investigate the effects of elementary school furniture weight and children's age on performance of three carrying tasks (carrying a chair, lifting and turning a chair on a desk, and carrying both a chair and a desk together, from the ergonomics point of view. A total of 42 schoolchildren (ages 6-9; 17 Indonesian, 25 Japanese participated in this study. Two types of Japanese chairs (Chair A and B, weight: 3.2 kg and 3.9 kg, one type of Indonesian chair (Chair C, weight: 5.0 kg, and two types of desks (height: 58 cm and 68 cm were used. Indonesian chairs took significantly longer time to carry than the two Japanese chairs, and there was a significant negative relationship between age and task time for Chairs B and C, but not Chair A. Success rates for lifting and turning the chair declined as age decreased and chair weight increased, but were not significantly influenced by desk height. Success rates for carrying a chair and desk together significantly decreased with heavier furniture. Children aged six showed an extremely low success rate in almost all conditions. In conclusion, children's ability to carry furniture is affected by their age and furniture characteristics, especially weight. In order to encourage classroom activities in elementary school, school furniture should be of appropriate weight. Supervision for younger children is required during classroom furniture arrangement.

  6. Effect of Furniture Weight on Carrying, Lifting, and Turning of Chairs and Desks among Elementary School Children.

    Science.gov (United States)

    Purwaningrum, Lu'lu'; Funatsu, Kyotaro; Xiong, Jinghong; Rosyidi, Cucuk Nur; Muraki, Satoshi

    2015-01-01

    Rearranging furniture in elementary school classrooms encourages classroom activities. In elementary schools in Indonesia and some other developing countries, usually only one style of furniture is used for all children, and the furniture is heavy and oversized for younger children. This affects their ability to carry it. The objective of this study is to investigate the effects of elementary school furniture weight and children's age on performance of three carrying tasks (carrying a chair, lifting and turning a chair on a desk, and carrying both a chair and a desk together), from the ergonomics point of view. A total of 42 schoolchildren (ages 6-9; 17 Indonesian, 25 Japanese) participated in this study. Two types of Japanese chairs (Chair A and B, weight: 3.2 kg and 3.9 kg), one type of Indonesian chair (Chair C, weight: 5.0 kg), and two types of desks (height: 58 cm and 68 cm) were used. Indonesian chairs took significantly longer time to carry than the two Japanese chairs, and there was a significant negative relationship between age and task time for Chairs B and C, but not Chair A. Success rates for lifting and turning the chair declined as age decreased and chair weight increased, but were not significantly influenced by desk height. Success rates for carrying a chair and desk together significantly decreased with heavier furniture. Children aged six showed an extremely low success rate in almost all conditions. In conclusion, children's ability to carry furniture is affected by their age and furniture characteristics, especially weight. In order to encourage classroom activities in elementary school, school furniture should be of appropriate weight. Supervision for younger children is required during classroom furniture arrangement.

  7. Annual Energy Savings and Thermal Comfort of Autonomously Heated and Cooled Office Chairs

    Energy Technology Data Exchange (ETDEWEB)

    Carmichael, Scott [National Renewable Energy Lab. (NREL), Golden, CO (United States); Booten, Chuck [National Renewable Energy Lab. (NREL), Golden, CO (United States); Robertson, Joseph [National Renewable Energy Lab. (NREL), Golden, CO (United States); Chin, Justin [National Renewable Energy Lab. (NREL), Golden, CO (United States); Christensen, Dane [National Renewable Energy Lab. (NREL), Golden, CO (United States); Pless, Jacquelyn [National Renewable Energy Lab. (NREL), Golden, CO (United States); Arent, Doug [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2016-07-01

    Energy use in offices buildings is largely driven by air conditioning demands. But the optimal temperature is not the same for all building occupants, leading to the infamous thermostat war. And many occupants have independently overcome building comfort weaknesses with their own space heaters or fans. NREL tested is a customized office chair that automatically heats and cools the occupant along the seat and chair back according to the occupants' personal preferences. This product is shown to deliver markedly better comfort at room temperatures well above typical office cooling setpoints. Experimental subjects reported satisfaction in these elevated air temperatures, partly because the chair's cooling effect was tuned to their own individual needs. Simulation of the chair in office buildings around the U.S. shows that energy can be saved everywhere, with impacts varying due to the climate. Total building HVAC energy savings exceeded 10% in hot-dry climate zones. Due to high product cost, simple payback for the chair we studied is beyond the expected chair life. We then understood the need to establish cost-performance targets for comfort delivery packages. NREL derived several hypothetical energy/cost/comfort targets for personal comfort product systems. In some climate regions around the U.S., these show the potential for office building HVAC energy savings in excess of 20%. This report documents this research, providing an overview of the research team's methods and results while also identifying areas for future research building upon the findings.

  8. The rise of Chrome

    Directory of Open Access Journals (Sweden)

    Jonathan Tamary

    2015-10-01

    Full Text Available Since Chrome’s initial release in 2008 it has grown in market share, and now controls roughly half of the desktop browsers market. In contrast with Internet Explorer, the previous dominant browser, this was not achieved by marketing practices such as bundling the browser with a pre-loaded operating system. This raises the question of how Chrome achieved this remarkable feat, while other browsers such as Firefox and Opera were left behind. We show that both the performance of Chrome and its conformance with relevant standards are typically better than those of the two main contending browsers, Internet Explorer and Firefox. In addition, based on a survey of the importance of 25 major features, Chrome product managers seem to have made somewhat better decisions in selecting where to put effort. Thus the rise of Chrome is consistent with technical superiority over the competition.

  9. Quality Improvement Practices in Academic Emergency Medicine: Perspectives from the Chairs

    Directory of Open Access Journals (Sweden)

    DelliFraine, Jami L

    2010-12-01

    Full Text Available Objective: To assess academic emergency medicine (EM chairs’ perceptions of quality improvement (QI training programs.Methods: A voluntary anonymous 20 item survey was distributed to a sample of academic chairs of EM through the Association of Academic Chairs of Emergency Medicine. Data was collected to assess the percentage of academic emergency physicians who had received QI training, the type of training they received, their perception of the impact of this training on behavior, practice and outcomes, and any perceived barriers to implementing QI programs in the emergency department.Results: The response rate to the survey was 69% (N = 59. 59.3% of respondents report that their hospital has a formal QI program for physicians. Chairs received training in a variety of QI programs. The type of QI program used by respondents was perceived as having no impact on goals achieved by QI (χ2 = 12.382; p = 0.260, but there was a statistically significant (χ2 = 14.383; p = 0.006 relationship between whether or not goals were achieved and academic EM chairs’ perceptions about return on investment for QI training. Only 22% of chairs responded that they have already made changes as a result of the QI training. 78.8% of EM chairs responded that quality programs could have a significant positive impact on their practice and the healthcare industry. Chairs perceived that QI programs had the most potential value in the areas of understanding and reducing medical errors and improving patient flow and throughput. Other areas of potential value of QI include improving specific clinical indicators and standardizing physician care.Conclusion: Academic EM chairs perceived that QI programs were an effective way to drive needed improvements. The results suggest that there is a high level of interest in QI but a low level of adoption of training and implementation.[West J Emerg Med. 2010; 11(5:479-485.

  10. Quantum repeated games revisited

    CERN Document Server

    Frackiewicz, Piotr

    2011-01-01

    We present a scheme for playing quantum repeated 2x2 games based on the Marinatto and Weber's approach to quantum games. As a potential application, we study twice repeated Prisoner's Dilemma game. We show that results not available in classical game can be obtained when the game is played in the quantum way. Before we present our idea, we comment on the previous scheme of playing quantum repeated games.

  11. Two-dimensional quantum repeaters

    Science.gov (United States)

    Wallnöfer, J.; Zwerger, M.; Muschik, C.; Sangouard, N.; Dür, W.

    2016-11-01

    The endeavor to develop quantum networks gave rise to a rapidly developing field with far-reaching applications such as secure communication and the realization of distributed computing tasks. This ultimately calls for the creation of flexible multiuser structures that allow for quantum communication between arbitrary pairs of parties in the network and facilitate also multiuser applications. To address this challenge, we propose a two-dimensional quantum repeater architecture to establish long-distance entanglement shared between multiple communication partners in the presence of channel noise and imperfect local control operations. The scheme is based on the creation of self-similar multiqubit entanglement structures at growing scale, where variants of entanglement swapping and multiparty entanglement purification are combined to create high-fidelity entangled states. We show how such networks can be implemented using trapped ions in cavities.

  12. 90 years anniversary of the Pathophysiology Chair with the Clinical Pathophysiology Course of the Omsk State Medical Academy

    Directory of Open Access Journals (Sweden)

    V. T. Dolgikh

    2012-01-01

    Full Text Available Chair of Pathologic Physiology with Clinical Pathophysiology Course of the OmskStateMedicalAcademyhas celebrated its 90th anniversary with the latest achievements in the pathogenesis of postresuscitation disease. Experimental resuscitation model exploited by the staff of the Chair is allowed to extend knowledge in respect to the nature of hemodynamic disorders, endogenous toxemias, functional and metabolic aspects of hypoxia and reoxygenation in terminal and critical states including other significant problems of the pathology. The Chair of Pathologic Physiology is going on with the scientific inquiries in close collaboration with the Clinical Chair of the Academy and Research Units of Russia.

  13. Development of a Power Assist System of a Walking Chair Based on Human Arm Characteristics

    Science.gov (United States)

    Wu, Yunfeng; Nakamura, Hitoshi; Takeda, Yukio; Higuchi, Masaru; Sugimoto, Koichi

    In this paper, design of control system and power combination mechanism of a power assist system of the walking chair was discussed based on kinetostatic characteristics of human arm. The walking chair is a welfare walking machine which is an alternative vehicle of the wheelchair, and expected to be driven by user's cranking operation with assisting actuator. To efficiently utilize user power as much as possible for long locomotion without giving much fatigue to the user while providing comfortable driving feeling to the user, the human arm characteristics were taken into consideration. Kinetostatic characteristics of the human arm were experimentally investigated for its modeling. This model was applied to the design of mechanism and control system of the power assist system of the walking chair, and design parameters were determined for achieving comfortable driving feeling and efficient utilization of user power.

  14. The founder and head of the Chair of Theoretical Physics of the Yerevan State University

    Science.gov (United States)

    Grigoryan, L. Sh

    2014-03-01

    The paper is dedicated to the Centenary of an Academician of NAS RA, Professor G S Sahakyan's birth, the Man that founded and headed the Chair of Theoretical Physics (CTP) of the Yerevan State University for almost half a century. The reference to school days of G S Sahakyan is made, information about his 7 years long service in the forces in the fields, about the establishment and administration by him of the Chair of Theoretical Physics in the Yerevan State University, about his collaboration with academician V A Ambartsumian, about the research associates of the G S Sahakyan's Chair, the students of CTP and the advancement of theoretical physics in Armenia is given. The personality characteristics of G S Sahakyan as a principal investigator and leader of CTP are analyzed.

  15. Merlin's 'invalid or gouty chair' and the origin of the self-propelled wheelchair.

    Science.gov (United States)

    Weiner, Marie-France; Silver, John R

    2016-08-01

    Wheelchairs are a major advance in enabling independence for people with walking difficulties. The first self-propelled wheelchair has been attributed to John Joseph Merlin, the 'ingenious mechanick', in the early 19th century and his 'gouty chair' is exhibited at Kenwood House. Research would suggest that comparable chairs existed in France as early as 1751 and the French Revolutionary, Georges Couthon, used one to get around Paris. A later design, also attributed to Merlin, the invalid wheelchair, features large wheels with outer hoops for the occupant to grasp and this is the true ancestor of the modern wheelchair. © The Author(s) 2016.

  16. A Profile of Academic Training Program Directors and Chairs in Radiation Oncology

    Energy Technology Data Exchange (ETDEWEB)

    Wilson, Lynn D., E-mail: Lynn.wilson@yale.edu [Department of Therapeutic Radiology, Yale University School of Medicine, Smilow Cancer Hospital, New Haven, Connecticut (United States); Haffty, Bruce G. [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Smith, Benjamin D. [Department of Radiation Oncology, UMDNJ-RWJMS, Cancer Institute of New Jersey, New Brunswick, New Jersey (United States)

    2013-04-01

    Purpose: To identify objective characteristics and benchmarks for program leadership in academic radiation oncology. Methods and Materials: A study of the 87 Accreditation Council for Graduate Medical Education radiation oncology training program directors (PD) and their chairs was performed. Variables included age, gender, original training department, highest degree, rank, endowed chair assignment, National Institutes of Health (NIH) funding, and Hirsch index (H-index). Data were gathered from online sources such as departmental websites, NIH RePORTER, and Scopus. Results: There were a total of 87 PD. The median age was 48, and 14 (16%) were MD/PhD. A total of 21 (24%) were female, and rank was relatively equally distributed above instructor. Of the 26 professors, at least 7 (27%) were female. At least 24 (28%) were working at the institution from which they had received their training. A total of 6 individuals held endowed chairs. Only 2 PD had active NIH funding in 2012. The median H-index was 12 (range, 0-51) but the index dropped to 9 (range, 0-38) when those who served as both PD and chair were removed from the group. A total of 76 chairs were identified at the time of the study. The median age was 55, and 9 (12%) were MD/PhD. A total of 7 (9%) of the chairs were female, and rank was professor for all with the exception of 1 who was listed as “Head” and was an associate professor. Of the 76 chairs, at least 10 (13%) were working at the institution from which they received their training. There were a total of 21 individuals with endowed chairs. A total of 13 (17%) had NIH funding in 2012. The median H-index was 29 (range, 3-60). Conclusions: These data provide benchmarks for individuals and departments evaluating leadership positions in the field of academic radiation oncology. Such data are useful for evaluating leadership trends over time and comparing academic radiation oncology with other specialties.

  17. Comparative investigation of durability of chairs made of beach and Paulownia tomentosa

    Directory of Open Access Journals (Sweden)

    Skakić Dušan

    2008-01-01

    Full Text Available The result of parallel investigation of chair durability, which has been made in two different wood species (beach and Paulwonia tomentosa has been presented in this paper. Static and dynamic loads has highest values in seating furniture, and that is the reason why chair has been chosen to bee representative for testing new species, which could be used in furniture production in Serbia. A shown results indicates on possibility that this species can be used only for production furniture which wont bee imposed with heavy loads during exploitation.

  18. Reconfigurable multiport EPON repeater

    Science.gov (United States)

    Oishi, Masayuki; Inohara, Ryo; Agata, Akira; Horiuchi, Yukio

    2009-11-01

    An extended reach EPON repeater is one of the solutions to effectively expand FTTH service areas. In this paper, we propose a reconfigurable multi-port EPON repeater for effective accommodation of multiple ODNs with a single OLT line card. The proposed repeater, which has multi-ports in both OLT and ODN sides, consists of TRs, BTRs with the CDR function and a reconfigurable electrical matrix switch, can accommodate multiple ODNs to a single OLT line card by controlling the connection of the matrix switch. Although conventional EPON repeaters require full OLT line cards to accommodate subscribers from the initial installation stage, the proposed repeater can dramatically reduce the number of required line cards especially when the number of subscribers is less than a half of the maximum registerable users per OLT. Numerical calculation results show that the extended reach EPON system with the proposed EPON repeater can save 17.5% of the initial installation cost compared with a conventional repeater, and can be less expensive than conventional systems up to the maximum subscribers especially when the percentage of ODNs in lightly-populated areas is higher.

  19. Revisiting the TALE repeat.

    Science.gov (United States)

    Deng, Dong; Yan, Chuangye; Wu, Jianping; Pan, Xiaojing; Yan, Nieng

    2014-04-01

    Transcription activator-like (TAL) effectors specifically bind to double stranded (ds) DNA through a central domain of tandem repeats. Each TAL effector (TALE) repeat comprises 33-35 amino acids and recognizes one specific DNA base through a highly variable residue at a fixed position in the repeat. Structural studies have revealed the molecular basis of DNA recognition by TALE repeats. Examination of the overall structure reveals that the basic building block of TALE protein, namely a helical hairpin, is one-helix shifted from the previously defined TALE motif. Here we wish to suggest a structure-based re-demarcation of the TALE repeat which starts with the residues that bind to the DNA backbone phosphate and concludes with the base-recognition hyper-variable residue. This new numbering system is consistent with the α-solenoid superfamily to which TALE belongs, and reflects the structural integrity of TAL effectors. In addition, it confers integral number of TALE repeats that matches the number of bound DNA bases. We then present fifteen crystal structures of engineered dHax3 variants in complex with target DNA molecules, which elucidate the structural basis for the recognition of bases adenine (A) and guanine (G) by reported or uncharacterized TALE codes. Finally, we analyzed the sequence-structure correlation of the amino acid residues within a TALE repeat. The structural analyses reported here may advance the mechanistic understanding of TALE proteins and facilitate the design of TALEN with improved affinity and specificity.

  20. On Murray Jackson's 1961 'Chair, couch and countertransference'.

    Science.gov (United States)

    Connolly, Angela

    2015-09-01

    One of the problems facing psychoanalysts of all schools is that theory has evolved at a much faster pace than practice. Whereas there has been an explosion of theory, practice has remained, at least officially, static and unchanging. It is in this sense that Murray Jackson's 1961 paper is still relevant today. Despite the rise of the new relational and intersubjective paradigms, most psychoanalysts, and not a few Jungian analysts, still seem to feel that the couch is an essential component of the analytical setting and process. If the use of the couch is usually justified by the argument that it favours regression, facilitates analytical reverie and protects the patient from the influence of the analyst, over time many important psychoanalysts have come to challenge this position. Increasingly these analysts suggest that the use of the couch may actually be incompatible with the newer theoretical models. This contention is strengthened by some of the findings coming from the neurosciences and infant research. This underlines the necessity of empirical research to verify the clinical effectiveness of these different positions, couch or face-to-face, but it is exactly this type of research that is lacking. © 2015, The Society of Analytical Psychology.

  1. Vertebrate sex-determining genes play musical chairs.

    Science.gov (United States)

    Pan, Qiaowei; Anderson, Jennifer; Bertho, Sylvain; Herpin, Amaury; Wilson, Catherine; Postlethwait, John H; Schartl, Manfred; Guiguen, Yann

    2016-01-01

    Sexual reproduction is one of the most highly conserved processes in evolution. However, the genetic and cellular mechanisms making the decision of whether the undifferentiated gonad of animal embryos develops either towards male or female are manifold and quite diverse. In vertebrates, sex-determining mechanisms range from environmental to simple or complex genetic mechanisms and different mechanisms have evolved repeatedly and independently. In species with simple genetic sex-determination, master sex-determining genes lying on sex chromosomes drive the gonadal differentiation process by switching on a developmental program, which ultimately leads to testicular or ovarian differentiation. So far, very few sex-determining genes have been identified in vertebrates and apart from mammals and birds, these genes are apparently not conserved over a larger number of related orders, families, genera, or even species. To fill this knowledge gap and to better explore genetic sex-determination, we propose a strategy (RAD-Sex) that makes use of next-generation sequencing technology to identify genetic markers that define sex-specific segments of the male or female genome. Copyright © 2016 Académie des sciences. All rights reserved.

  2. Two-dimensionally stacked heterometallic layers hosting a discrete chair dodecameric ring of water clusters: synthesis and structural study.

    Science.gov (United States)

    Kenfack Tsobnang, Patrice; Wenger, Emmanuel; Biache, Coralie; Lambi Ngolui, John; Ponou, Siméon; Dahaoui, Slimane; Lecomte, Claude

    2014-10-01

    The stacked two-dimensional supramolecular compound catena-{Co(amp)3Cr(ox)3·6H2O} (amp = 2-picolylamine, ox = oxalate) has been synthesized from the bimolecular approach using hydrogen bonds. It is built from layers in which both Co(amp)(3+) (D) and Cr(ox)(3-) (A) ions are bonded in a repeating DADADA… pattern along the a and c axes by multiple hydrogen bonds. These layers host a well resolved R12 dodecameric discrete ring of water clusters built by six independent molecules located around the 2c centrosymmetric Wyckoff positions of the P21/n space group in which the compound crystallizes. These clusters are ranged along the [001] direction, occupy 733.5 Å(3) (22.0%) of the unit cell and have a chair conformation via 12 hydrogen bonds. The water molecules of the cluster are linked with stronger hydrogen bonds than those between the cluster and its host, which explains the single continuous step of the dehydration process of the compound.

  3. Recursive quantum repeater networks

    CERN Document Server

    Van Meter, Rodney; Horsman, Clare

    2011-01-01

    Internet-scale quantum repeater networks will be heterogeneous in physical technology, repeater functionality, and management. The classical control necessary to use the network will therefore face similar issues as Internet data transmission. Many scalability and management problems that arose during the development of the Internet might have been solved in a more uniform fashion, improving flexibility and reducing redundant engineering effort. Quantum repeater network development is currently at the stage where we risk similar duplication when separate systems are combined. We propose a unifying framework that can be used with all existing repeater designs. We introduce the notion of a Quantum Recursive Network Architecture, developed from the emerging classical concept of 'recursive networks', extending recursive mechanisms from a focus on data forwarding to a more general distributed computing request framework. Recursion abstracts independent transit networks as single relay nodes, unifies software layer...

  4. An Investigation of the National School Board Association Key Work Standards for Public Policy Leadership and School Board Chair Performance

    Science.gov (United States)

    Quarles, Roger C.

    2011-01-01

    This multiple case qualitative study addressed the National School Board Association's (NSBA) Key Work standards for public policy leadership by local school boards, and how three elite school board chairs understood and implemented those standards. Elite board chair status was defined by experience, training, and peer recognition. The study…

  5. Moisture penetration in a chair seat as a response to daily RH variations in the indoor air

    DEFF Research Database (Denmark)

    Svennberg, Kaisa; Claesson, Johan; Hansen, Kurt Kielsgaard

    2005-01-01

    properties and calculation models describing the response to moisture variations in the ambient climate for these material combinations are limited. In this project the moisture properties for a chair seat with a wool fabric and plastic foam padding were determined. The moisture penetration in the chair seat...

  6. An Investigation of the National School Board Association Key Work Standards for Public Policy Leadership and School Board Chair Performance

    Science.gov (United States)

    Quarles, Roger C.

    2011-01-01

    This multiple case qualitative study addressed the National School Board Association's (NSBA) Key Work standards for public policy leadership by local school boards, and how three elite school board chairs understood and implemented those standards. Elite board chair status was defined by experience, training, and peer recognition. The study…

  7. Chair alarm for patient fall prevention based on gesture recognition and interactivity.

    Science.gov (United States)

    Knight, Heather; Lee, Jae-Kyu; Ma, Hongshen

    2008-01-01

    The Gesture Recognition Interactive Technology (GRiT) Chair Alarm aims to prevent patient falls from chairs and wheelchairs by recognizing the gesture of a patient attempting to stand. Patient falls are one of the greatest causes of injury in hospitals. Current chair and bed exit alarm systems are inadequate because of insufficient notification, high false-alarm rate, and long trigger delays. The GRiT chair alarm uses an array of capacitive proximity sensors and pressure sensors to create a map of the patient's sitting position, which is then processed using gesture recognition algorithms to determine when a patient is attempting to stand and to alarm the care providers. This system also uses a range of voice and light feedback to encourage the patient to remain seated and/or to make use of the system's integrated nurse-call function. This system can be seamlessly integrated into existing hospital WiFi networks to send notifications and approximate patient location through existing nurse call systems.

  8. Jacqueline Baxter Talks to Gill Howland, Newly Appointed Chair of BELMAS

    Science.gov (United States)

    Baxter, Jacqueline

    2017-01-01

    Gill is currently Chair of the British Educational Leadership, Management and Administration Society. Her personal experiences are central to her belief that education is the key to unlocking potential, both for individuals and for society as a whole. Throughout her career she has championed the right to good quality, inspirational education for…

  9. Reliability of Arm Curl and Chair Stand tests for assessing muscular endurance in older people

    Directory of Open Access Journals (Sweden)

    Boneth M

    2012-05-01

    Full Text Available Objective: to assess the test-retest reliability and level of agreement between measures of the 30 second (30-s Arm Curl and 30-s Chair Stand test in a sample of older adults from Bucaramanga. Materials and methods: a study of evaluation of diagnostic technology was done. Both tests were administered by the same evaluator to 111 adults older than 59 year-old (70,4 ± 7,3, on two occasions, with an interval of time between measures of 4 to 8 days. In the analysis, test-retest reliability was determined using the Intraclass Correlation Coefficient ICC= 2,1 with their confidence interval 95% (CI 95% respective. The agreement level was established by the Bland and Altman method. Results: the test-retest reproducibility of the 30-s Arm Curl test was very good ICC= 0,88 and to the Chair Stand test was good ICC= 0,78. The agreement was very good for both tests of muscle endurance. The CI 95% were between -3,8 and 3,2 stands to 30-s Chair Stand test and between -3,1 and 2,8 curls to 30-s Arm Curl test. Conclusion: the 30-s Arm Curl and 30-s Chair Stand test have good reliability and agreement to assess muscle endurance in older adults functionally independent.

  10. The Cockpit's Empty Chair: Education through Appropriating Alienation at a Chicago Technology Museum

    Science.gov (United States)

    Lormier, Anne

    2007-01-01

    Background/Context: In the United States, the percentage of schoolchildren planning to become high-status professionals is grossly disproportionate to the percentage of such jobs comprising our division of labor. As in a game of musical chairs, it is not structurally possible for everyone to remain a contender. Focus of Study: Various adults who…

  11. What Every Department Chair Should Know about the Dean: Findings from Four National Surveys.

    Science.gov (United States)

    Bowker, Lee H.; Lynch, David M.

    Information about deans that may be helpful to department chairs is presented, based on the findings of four national surveys of deans. The surveys of social science, graduate, continuing education, and arts and sciences deans covered the deans' role in resource allocation to departments, teaching and research support for faculty, tenure and…

  12. An office chair to influence the sitting behavior of office workers.

    Science.gov (United States)

    Goossens, R H M; Netten, M P; Van der Doelen, B

    2012-01-01

    Since the introduction of ergonomic guidelines in the design of office chairs, a lot of effort has been put in designing these office chairs accordingly. Because these features all have to be adjusted in different ways (mostly a knob underneath the seat surface), and because every office chair offers different solutions, often users do not use all of the adjustments, and thus do not use the office chair an the optimal ergonomic way. The aim of this paper is to study the influence of feedback on sitting habits of office workers in a field test during 4 weeks. 40 office workers were selected for this test (13 male, 27 female). They were divided in three groups. A control group, a group that received a sitting instruction and a group that received sitting instruction and feedback on their posture every hour that they sit. The results show that there is an effect in average increase in basic posture on both the group that received instruction and the group that received feedback. This effect decreases over time. There was no effect in the control group.

  13. 29 CFR 4002.3 - Board of Directors, Chair, and Representatives of Board Members.

    Science.gov (United States)

    2010-07-01

    ... and analysis, annual performance report, and reports of the independent auditor; (iii) Approval of the...) Review of reports from the Corporation's Inspector General that the Inspector General deems appropriate... CORPORATION GENERAL BYLAWS OF THE PENSION BENEFIT GUARANTY CORPORATION § 4002.3 Board of Directors, Chair, and...

  14. 21 CFR 868.5365 - Posture chair for cardiac or pulmonary treatment.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Posture chair for cardiac or pulmonary treatment. 868.5365 Section 868.5365 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5365 Posture...

  15. Design of Lesehan Chair by Using Kansei Engineering Method And Anthropometry Approach

    Science.gov (United States)

    Pambudi, A. T.; Suryoputro, M. R.; Sari, A. D.; Kurnia, R. D.

    2016-01-01

    Special Region of Yogyakarta (DIY) is known as city for academic. Many people come to get some education in college. They live in boarding house with some supporting facilities. The most common facilities is low table which lead students have to sit on the floor while studying on table which could cause higher risk of back pain and musculoskeletal disorder. To identify the solution to reduce back pain and musculoskeletal risk, it is needed to design a lesehan chair which also appropriate to customer needs. Kansei engineering method was used with a total of 30 respondents participated, 15 kansei words collected, and 12 kansei words selected by doing validation and reliability test. The result of this study showed that quality, aesthetics, and comfort level influence the design of lesehan chair. A design of lesehan chair was created by considering the suitable concept and merging it with the physical design and its anthropometry measurement. In this case, marginal homogeneity test is needed to identify the differences between each kansei words attribute and the design or product recommendation. The marginal homogeneity test results show that the design and product recommendation has fulfilled customer's desires and needs. For further research, it is needed to analyse and evaluate the posture of lesehan chair users in order to develop and improve its performance.

  16. Severe cerebral desaturation during shoulder arthroscopy in the beach-chair position

    DEFF Research Database (Denmark)

    Dippmann, Christian; Winge, Søren; Nielsen, Henning Bay

    2010-01-01

    During shoulder arthroscopy in the beach-chair position, cerebral ischemia may be a serious complication because prolonged hypotension may affect regional cerebral oxygen supply. We present the cases of 2 patients in whom a reduction in mean arterial pressure after anesthesia provoked a decrease...

  17. Relationships among Central Administrators, Chairs, and Faculty: Academic Change Agents in Theory and Practice.

    Science.gov (United States)

    Hickson, Mark, III

    2000-01-01

    Offers an empirically derived model (based on observations of administrative behavior at two institutions of higher education) describing relationships among central administrators, chairs, and faculty. Discusses change agents, the do-it-yourself approach, the rhetoric of change, the faculty retreat, hiring new and more administrators, creating…

  18. Defining and Activating the Role of Department Chair as Instructional Leader

    Science.gov (United States)

    Kelley, Carolyn; Salisbury, Jason

    2013-01-01

    With strong connection to schoolwide policy and vision and to the realities of the daily life of teachers and students, the department chair is uniquely positioned to play an important role in advancing instructional effectiveness (Printy, 2008; Weller, 2001). This article provides an in-depth look at the efforts of three urban comprehensive high…

  19. 77 FR 55813 - Environmental Management Site-Specific Advisory Board Chairs

    Science.gov (United States)

    2012-09-11

    ... Update EM Headquarters Waste Disposition Strategies EM SSAB Chairs' Round Robin: Cross-Complex Issues... Designated Federal Officer is empowered to conduct the meeting in a fashion that will facilitate the orderly conduct of business. Individuals wishing to make public comment will be provided a maximum of five...

  20. Tenure Standards in Political Science Departments: Results from a Survey of Department Chairs

    Science.gov (United States)

    Rothgeb, John M., Jr.; Burger, Betsy

    2009-01-01

    This article presents the results from a survey of political science department chairs regarding the tenure procedures and standards at their colleges or universities. The findings reveal that only a small fraction of the colleges and universities in the United States refuse to offer tenure or are attempting to limit tenure. We also find general…

  1. Jacqueline Baxter Talks to Gill Howland, Newly Appointed Chair of BELMAS

    Science.gov (United States)

    Baxter, Jacqueline

    2017-01-01

    Gill is currently Chair of the British Educational Leadership, Management and Administration Society. Her personal experiences are central to her belief that education is the key to unlocking potential, both for individuals and for society as a whole. Throughout her career she has championed the right to good quality, inspirational education for…

  2. UNESCO Chair in Copyright and Neighbouring Rights Set Up in China

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The ceremony marking the establishment ofUNESCO chair in copyright and neighbouringrights was held in the Renmin University ofChina(PUC).Mr.Koichiro Matsuura,DirectorGeneral of the United Nations Educational,Scientific and Cultural Organisation(UNESCO)attended the ceremony.At which,Mr.Matsuura

  3. Observation of Classroom Performance Using Therapy Balls as a Substitute for Chairs in Elementary School Children

    Science.gov (United States)

    Burgoyne, Molly E.; Ketcham, Caroline J.

    2015-01-01

    Many classrooms are beginning to substitute standard chairs with therapy balls, which help to improve students' focus and classroom performance, according to teacher and student reports. Researchers conducted an observational study in a classroom at a local elementary school that implemented therapy balls. For each hour-long observation, three…

  4. 77 FR 72883 - Folding Metal Tables and Chairs From China; Termination of Five-Year Review

    Science.gov (United States)

    2012-12-06

    ... From the Federal Register Online via the Government Publishing Office INTERNATIONAL TRADE COMMISSION Folding Metal Tables and Chairs From China; Termination of Five- Year Review AGENCY: United States International Trade Commission. ACTION: Notice. SUMMARY: The subject five-year review was initiated in October...

  5. Shifts in the focus of population policies: concluding remarks on the XXXV Chaire Quetelet Symposium

    NARCIS (Netherlands)

    van Nimwegen, N.

    2011-01-01

    The symposium, “Population Policies in Europe and in North America”, XXXV Chaire Quetelet, Louvain-la-Neuve, 18-20 October 2009, covered a wide range of studies treating major issues on the interface of population trends and policy implications. The studies reported ranged from migration to family i

  6. The effectiveness of a chair intervention in the workplace to reduce musculoskeletal symptoms. A systematic review

    Directory of Open Access Journals (Sweden)

    van Niekerk Sjan-Mari

    2012-08-01

    Full Text Available Abstract Background Prolonged sitting has been associated with musculoskeletal dysfunction. For desk workers, workstation modifications frequently address the work surface and chair. Chairs which can prevent abnormal strain of the neuromuscular system may aid in preventing musculo-skeletal pain and discomfort. Anecdotally, adjustability of the seat height and the seat pan depth to match the anthropometrics of the user is the most commonly recommended intervention. Within the constraints of the current economic climate, employers demand evidence for the benefits attributed to an investment in altering workstations, however this evidence-base is currently unclear both in terms of the strength of the evidence and the nature of the chair features. The purpose of this study was to evaluate the evidence for the effectiveness of chair interventions in reducing workplace musculoskeletal symptoms. Methods Pubmed, Cinahl, Pedro, ProQuest, SCOPUS and PhysioFocus were searched. ‘Ergonomic intervention’, ‘chair’, ‘musculoskeletal symptoms’, ‘ergonomics’, ‘seated work’ were used in all the databases. Articles were included if they investigated the influence of chair modifications as an intervention; participants were in predominantly seated occupations; employed a pre/post design (with or without control or randomising and if the outcome measure included neuro-musculoskeletal comfort and/or postural alignment. The risk of bias was assessed using a tool based on The Cochrane Handbook. Results Five studies were included in the review. The number of participants varied from 4 to 293 participants. Three of the five studies were Randomised Controlled Trials, one pre and post-test study was conducted and one single case, multiple baselines (ABAB study was done. Three studies were conducted in a garment factory, one in an office environment and one with university students. All five studies found a reduction in self-reported musculoskeletal pain

  7. Effect of a suspension seat support chair on the trunk flexion angle and gluteal pressure during computer work.

    Science.gov (United States)

    Yoo, Won-Gyu

    2015-09-01

    [Purpose] We assessed the effects of a suspension seat support chair on the trunk flexion angle and gluteal pressure during computer work. [Subjects] Ten males were recruited. [Methods] The suspension seat support was developed to prevent abnormal gluteal pressure and a slumped sitting posture during computer work. The gluteal pressure was measured with a TekScan system and the trunk flexion angle was measured with a video camera, to compare the differences between a general chair and the suspension seat support. [Results] The gluteal peak pressures were decreased significantly in the suspension seat support versus the general chair. The trunk flexion angle was also decreased significantly in the suspension seat support compared with the general chair. [Conclusions] This study suggests that the suspension seat support chair contributes to preventing abnormal gluteal pressure and a slumped sitting posture.

  8. Growing bubbles rising in line

    Directory of Open Access Journals (Sweden)

    John F. Harper

    2001-01-01

    Full Text Available Over many years the author and others have given theories for bubbles rising in line in a liquid. Theory has usually suggested that the bubbles will tend towards a stable distance apart, but experiments have often showed them pairing off and sometimes coalescing. However, existing theory seems not to deal adequately with the case of bubbles growing as they rise, which they do if the liquid is boiling, or is a supersaturated solution of a gas, or simply because the pressure decreases with height. That omission is now addressed, for spherical bubbles rising at high Reynolds numbers. As the flow is then nearly irrotational, Lagrange's equations can be used with Rayleigh's dissipation function. The theory also works for bubbles shrinking as they rise because they dissolve.

  9. Rising Expectations, Social Unrest & Development

    Directory of Open Access Journals (Sweden)

    Ashok Natarajan

    2011-10-01

    Full Text Available The relationship between peace and development holds the key to effective strategies for addressing the roots of social unrest. Rising expectations are the principal driving force for social development. However, the faster and higher aspirations rise, the greater the gap between expectations and reality. That gap promotes a sense of frustration, depravation and aggression leading to social unrest and violence. The opposite is also true: rising economic opportunity can mitigate or eliminate social unrest. The remarkable renunciation of armed struggle by the IRA in North Ireland in mid - 2005 appears inexplicable until the impact of rising incomes and expanding employment opportunities in the Republic of Ireland is also taken into account. A similar approach can be applied to address the problems of violence and social unrest in Kashmir and Palestine. Here too apparently intractable conflicts will lend themselves to be addressed economically. India's recent efforts to provide guaranteed employment to its rural poor are part of a strategy to stem the rising tide of social unrest in impoverished areas resulting from rising expectations among the poor.

  10. The Pentapeptide Repeat Proteins

    Energy Technology Data Exchange (ETDEWEB)

    Vetting,M.; Hegde, S.; Fajardo, J.; Fiser, A.; Roderick, S.; Takiff, H.; Blanchard, J.

    2006-01-01

    The Pentapeptide Repeat Protein (PRP) family has over 500 members in the prokaryotic and eukaryotic kingdoms. These proteins are composed of, or contain domains composed of, tandemly repeated amino acid sequences with a consensus sequence of [S, T,A, V][D, N][L, F]-[S, T,R][G]. The biochemical function of the vast majority of PRP family members is unknown. The three-dimensional structure of the first member of the PRP family was determined for the fluoroquinolone resistance protein (MfpA) from Mycobacterium tuberculosis. The structure revealed that the pentapeptide repeats encode the folding of a novel right-handed quadrilateral {beta}-helix. MfpA binds to DNA gyrase and inhibits its activity. The rod-shaped, dimeric protein exhibits remarkable size, shape and electrostatic similarity to DNA.

  11. Repeating the Past

    Science.gov (United States)

    Moore, John W.

    1998-05-01

    As part of the celebration of the Journal 's 75th year, we are scanning each Journal issue from 25, 50, and 74 years ago. Many of the ideas and practices described are so similar to present-day "innovations" that George Santayana's adage (1) "Those who cannot remember the past are condemned to repeat it" comes to mind. But perhaps "condemned" is too strong - sometimes it may be valuable to repeat something that was done long ago. One example comes from the earliest days of the Division of Chemical Education and of the Journal.

  12. All-optical repeater.

    Science.gov (United States)

    Silberberg, Y

    1986-06-01

    An all-optical device containing saturable gain, saturable loss, and unsaturable loss is shown to transform weak, distorted optical pulses into uniform standard-shape pulses. The proposed device performs thresholding, amplification, and pulse shaping as required from an optical repeater. It is shown that such a device could be realized by existing semiconductor technology.

  13. Bidirectional Manchester repeater

    Science.gov (United States)

    Ferguson, J.

    1980-01-01

    Bidirectional Manchester repeater is inserted at periodic intervals along single bidirectional twisted pair transmission line to detect, amplify, and transmit bidirectional Manchester 11 code signals. Requiring only 18 TTL 7400 series IC's, some line receivers and drivers, and handful of passive components, circuit is simple and relatively inexpensive to build.

  14. Bottlenecks aggravate rising construction costs

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-05-15

    Rising demand for power in developing countries combined with concerns about carbon emissions from coal-fired power plants in developed countries have created a bonanza for carbon-light technologies, including nuclear, renewables and natural gas plants. This, in turn, has put upward pressure on the price of natural gas in key markets while resulting in shortages in critical components for building renewables and nuclear reactors. Globalization of the power industry means that pressures in one segment or one region translate into shortages and rising prices everywhere else.

  15. Design and Fabrication of an Adjustable Sitting Inclinations Spinal Cord Rehabilitation Chair

    Science.gov (United States)

    Ajao, K. R.; Yahaya, T.; Ajimotokan, H. A.; Adeleke, A. A.; Bello, M.; Ojegbenro, O.

    2016-10-01

    The adjustable sitting inclination rehabilitation chair was fabricated with mild steel and soft upholstered fabric was used for the overlay on the seat, headrest and armrest. The components were coupled with a linear actuator at the upper frame for the reclining of the backrest about it axis. The wheels are located outboard of the seat of the chair to enhance stability while foot rest supports the posterior weight of the users. The narrow seat allows free movement of the leg when the user is seated. Sitting inclinations of 120 and 135° protect the spine disc from compression and proffer more comfort for the users than other angles experimented. The adjustable sitting inclination SCRC is simple and affordable for low-income people with Spinal cord injury, especially for those in developing countries in order to support other therapies for their recovery processes.

  16. Bond length and charge density variations within extended arm chair defects in graphene.

    Science.gov (United States)

    Warner, Jamie H; Lee, Gun-Do; He, Kuang; Robertson, Alex W; Yoon, Euijoon; Kirkland, Angus I

    2013-11-26

    Extended linear arm chair defects are intentionally fabricated in suspended monolayer graphene using controlled focused electron beam irradiation. The atomic structure is accurately determined using aberration-corrected transmission electron microscopy with monochromation of the electron source to achieve ∼80 pm spatial resolution at an accelerating voltage of 80 kV. We show that the introduction of atomic vacancies in graphene disrupts the uniformity of C-C bond lengths immediately surrounding linear arm chair defects in graphene. The measured changes in C-C bond lengths are related to density functional theory (DFT) calculations of charge density variation and corresponding DFT calculated structural models. We show good correlation between the DFT predicted localized charge depletion and structural models with HRTEM measured bond elongation within the carbon tetragon structure of graphene. Further evidence of bond elongation within graphene defects is obtained from imaging a pair of 5-8-5 divacancies.

  17. Key Tenets of Effective Surgery Leadership: Perspectives From the Society of Surgical Chairs Mentorship Sessions.

    Science.gov (United States)

    Rosengart, Todd K; Kent, K Craig; Bland, Kirby I; Britt, L D; Eberlein, Timothy J; Gewertz, Bruce Labe; Hunter, John G; Lillemoe, Keith D; Pellegrini, Carlos A; Schulick, Richard D; Stain, Steven Charles; Weigel, Ronald J

    2016-08-01

    This Special Communication summarizes the key points raised at the Society of Surgical Chairs mentorship panel sessions held at the 2014 and 2015 annual meetings of the society. Highlights of these expert panel discussions include senior chairs' insights into successfully dealing with increasingly complex academic medical organizations and horizontal department management expectations in the context of the arrival of the Millennial Generation into the work force. Three key tenets of effective surgery leadership that arose from these sessions deal with the importance of (1) collaboration and cooperativity, (2) humanized relationships and mentorship, and (3) operational efficiency. Overall, the panel consensus for the future of surgery leadership was optimistic while recognizing that the demands of chairmanship are considerable.

  18. Machining variability impacts on the strength of a 'chair-side' CAD-CAM ceramic.

    LENUS (Irish Health Repository)

    Addison, Owen

    2012-08-01

    To develop a novel methodology to generate specimens for bi-axial flexure strength (BFS) determination from a \\'chair-side\\' CAD-CAM feldspathic ceramic with surface defect integrals analogous to the clinical state. The hypotheses tested were: BFS and surface roughness (R(a)) are independent of machining variability introduced by the renewal or deterioration of form-grinding tools and that a post-machining annealing cycle would significantly modify BFS.

  19. INFLUENCE BILIARY DYSKINESIA ON RELIABLE CHAIR-TEST IN PATIENTS WITH CHRONIC NON-ATROPHIC GASTRITIS

    OpenAIRE

    Avramenko, A. A.; Korolenko, R N; Shuhtina, I. N.

    2017-01-01

    It was carried out a comprehensive survey of 45 patients with chronic non-atrophic gastritis with biliary dyskinesia, which included ultrasound diagnosis of abdominal organs, pH meters, esophagogastroduodenoscopy, double testing for H. pylori infection and histological examination of the gastric mucosa to 4 - m topographic zones, stool test and determine the level of antibodies to HP infection by ELISA. It was found that the presence of biliary dyskinesia reduces the reliability of the chair-...

  20. In Vivo Spinal Posture during Upright and Reclined Sitting in an Office Chair

    Directory of Open Access Journals (Sweden)

    Roland Zemp

    2013-01-01

    Full Text Available Increasing numbers of people spend the majority of their working lives seated in an office chair. Musculoskeletal disorders, in particular low back pain, resulting from prolonged static sitting are ubiquitous, but regularly changing sitting position throughout the day is thought to reduce back problems. Nearly all currently available office chairs offer the possibility to alter the backrest reclination angles, but the influence of changing seating positions on the spinal column remains unknown. In an attempt to better understand the potential to adjust or correct spine posture using adjustable seating, five healthy subjects were analysed in an upright and reclined sitting position conducted in an open, upright MRI scanner. The shape of the spine, as described using the vertebral bodies’ coordinates, wedge angles, and curvature angles, showed high inter-subject variability between the two seating positions. The mean lumbar, thoracic, and cervical curvature angles were 29±15°, -29±4°, and 13±8° for the upright and 33±12°, -31±7°, and 7±7° for the reclined sitting positions. Thus, a wide range of seating adaptation is possible through modification of chair posture, and dynamic seating options may therefore provide a key feature in reducing or even preventing back pain caused by prolonged static sitting.

  1. Effects of chair restraint on the strength of the tibia in rhesus monkeys

    Science.gov (United States)

    Hutchinson, T. M.; Bakulin, A. V.; Rakhmanov, A. S.; Martin, R. B.; Steele, C. R.; Arnaud, S. B.

    2001-01-01

    To determine the effects of the relative inactivity and unloading on the strength of the tibias of monkeys, Macaca mulatta, we used a non-invasive test to measure bending stiffness, or EI (Nm2), a mechanical property. The technique was validated by comparisons of in vivo measurements with standard measures of EI in the same bones post-mortem (r2 = 0.95, P monkeys, 3.0+/-0.7 years and 3.6+/-0.6 kg, revealed EI to be 16% higher in the right than left tibia (4.4+/-1.6 vs. 3.7+/-1.6 Nm2, P monkeys, restrained in chairs for 14 days, showed decreases in EI. There were no changes in EI in two chaired monkeys that lost weight during a 2-week space flight. The factors that account for both the decreases in bone mechanical properties after chair restraint at 1 g and lack of change after microgravity remain to be identified. Metabolic factors associated with body weight changes are suggested by our results.

  2. Solar wheel chair; Solar kurumaisu (iryokei no tachiba kara no kokoromi)

    Energy Technology Data Exchange (ETDEWEB)

    Okabe, K. [Gunma Prefectural College of Health Sciences, Gunma (Japan)

    1996-10-27

    Physically handicapped people due to accidents for example have been increasing yearly in number with the increase of the aged, spread of cars, and change in the living environment. Therefore, participation in society by such people as called the weak is indispensable. Under the circumstances, as a means of their participation, a wheel chair as a moving aid was examined from the viewpoint of medical treatment and classified into three categories as follows: (1) for the use of the aged who are healthy but leg muscles are weak, (2) for the use of the invalid incapable of moving a part of the body and (3) for the use in sports by people who are disabled in the lower half of the body but healthy otherwise. In other words, prototypes were made for three kinds of solar wheel chair, for the aged, for the invalid and for sport use by the disabled, with a field test performed for each prototype. The wheel chairs were exhibited in the school, used in welfare facilities and driven by a disabled person who participated in 100km marathon. The users` opinions were favorable stating they were able to drive by themselves the new vehicle utilizing the clean energy and to move around by their own free will. 6 refs., 5 figs.

  3. Rising Dance Star Wang Dongmei

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Wang Dongmei, a Harbin native and agraduate of the People’s Liberation Army ArtCollege, is a rising young dancer currently servingin the Dancing and Singing Ensemble of the PLA’sAir Force. She joined the army in February 1978,

  4. Temperature rise of installed FCC

    Science.gov (United States)

    Hankins, J. D.

    1976-01-01

    Report discusses temperature profiles of installed FCC for wood and tile surfaces. Three-conductor FCC was tested at twice nominal current-carrying capacity over bare floor and under carpet, with result indicating that temperature rise is not a linear function of current with FCC at this level.

  5. Finding Rising and Falling Words

    NARCIS (Netherlands)

    Tjong Kim Sang, E.

    2016-01-01

    We examine two different methods for finding rising words (among which neologisms) and falling words (among which archaisms) in decades of magazine texts (millions of words) and in years of tweets (billions of words): one based on correlation coefficients of relative frequencies and time, and one

  6. Duct Leakage Repeatability Testing

    Energy Technology Data Exchange (ETDEWEB)

    Walker, Iain [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Sherman, Max [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2014-01-01

    Duct leakage often needs to be measured to demonstrate compliance with requirements or to determine energy or Indoor Air Quality (IAQ) impacts. Testing is often done using standards such as ASTM E1554 (ASTM 2013) or California Title 24 (California Energy Commission 2013 & 2013b), but there are several choices of methods available within the accepted standards. Determining which method to use or not use requires an evaluation of those methods in the context of the particular needs. Three factors that are important considerations are the cost of the measurement, the accuracy of the measurement and the repeatability of the measurement. The purpose of this report is to evaluate the repeatability of the three most significant measurement techniques using data from the literature and recently obtained field data. We will also briefly discuss the first two factors. The main question to be answered by this study is to determine if differences in the repeatability of these tests methods is sufficient to indicate that any of these methods is so poor that it should be excluded from consideration as an allowed procedure in codes and standards.

  7. Rise, stagnation, and rise of Danish women's life expectancy

    DEFF Research Database (Denmark)

    Lindahl-Jacobsen, Rune; Rau, Roland; Jeune, Bernard

    2016-01-01

    favor forecasts that hinge on cohort differences. We use a combination of age decomposition and exchange of survival probabilities between countries to study the remarkable recent history of female life expectancy in Denmark, a saga of rising, stagnating, and now again rising lifespans. The gap between...... female life expectancy in Denmark vs. Sweden grew to 3.5 y in the period 1975-2000. When we assumed that Danish women born 1915-1945 had the same survival probabilities as Swedish women, the gap remained small and roughly constant. Hence, the lower Danish life expectancy is caused by these cohorts...... or later. Because it is difficult to disentangle period effects from cohort effects, demographers, epidemiologists, actuaries, and other population scientists often disagree about cohort effects' relative importance. In particular, some advocate forecasts of life expectancy based on period trends; others...

  8. Active Listening--Listen, Repeat, Do. Scans Plans Portfolio.

    Science.gov (United States)

    Sample, Barbara

    In this unit, students will use active listening, repeating, or paraphrasing what has been said to confirm understanding and introductory phrases and rising intonation to ask for clarification. They will also follow one, two, or multi-step instructions or give instructions to another person. (Adjunct ERIC Clearinghouse for ESL Literacy Education)…

  9. A radiolucent chair for sitting-posture radiographs in non-ambulatory children: use in biplanar digital slot-scanning

    Energy Technology Data Exchange (ETDEWEB)

    Bouloussa, Houssam; Dubory, Arnaud; Bachy, Manon [Universite Pierre et Marie Curie-Paris 6, Armand Trousseau Hospital, Department of Pediatric Orthopaedics, Paris Cedex 12 (France); Seiler, Catherine [Groupe Lagarrigue, Clichy (France); Morel, Baptiste [Universite Pierre et Marie Curie-Paris 6, Armand Trousseau Hospital, Department of Pediatric Imaging, Paris (France); Vialle, Raphael [Universite Pierre et Marie Curie-Paris 6, Armand Trousseau Hospital, Department of Pediatric Orthopaedics, Paris Cedex 12 (France); Armand Trousseau Hospital, The MAMUTH Hospital-University Department for Innovative Therapies in Musculoskeletal Diseases, Paris (France)

    2015-11-15

    EOS imaging (EOS System; EOS imaging, Paris, France) enables fast 2-D/3-D imaging of children in standing load-bearing position. Non-ambulatory children with neuromuscular scoliosis need evaluation of their spinal balance while in a normal daily position. We designed a customized chair fitting the EOS patient-area dimensions to obtain images in natural sitting postures. The chair is a 360 rotating orthopaedic chair made of fully radiolucent polyethylene and equipped with an adjustable headrest and three-point belts. Out of 41 consecutive patients, 36 (88%, 95% confidence interval 74-96%) had successful imaging. In most patients with severe neuromuscular trunk deformities, the EOS system combined with our chair was useful for assessing preoperative trunk collapse, pelvic obliquity and postoperative corrections in all planes. This specific device changed our daily practice for the assessment of spinal deformities in non-ambulatory patients. (orig.)

  10. Toward creating family-friendly work environments in pediatrics: baseline data from pediatric department chairs and pediatric program directors.

    Science.gov (United States)

    McPhillips, Heather A; Burke, Ann E; Sheppard, Kate; Pallant, Adam; Stapleton, F Bruder; Stanton, Bonita

    2007-03-01

    The objective was to determine baseline characteristics of pediatric residency training programs and academic departments in regard to family-friendly work environments as outlined in the Report of the Task Force on Women in Pediatrics. We conducted Web-based anonymous surveys of 147 pediatric department chairs and 203 pediatric program directors. The chair's questionnaire asked about child care, lactation facilities, family leave policies, work-life balance, and tenure and promotion policies. The program director's questionnaire asked about family leave, parenting, work-life balance, and perceptions of "family-friendliness." The response rate was 52% for program directors and 51% for chairs. Nearly 60% of chairs reported some access to child care or provided assistance locating child care; however, in half of these departments, demand almost always exceeded supply. Lactation facilities were available to breastfeeding faculty in 74% of departments, although only 57% provided access to breast pumps. A total of 78% of chairs and 90% of program directors reported written maternity leave policies with slightly fewer reporting paternity leave policies. The majority (83%) of chairs reported availability of part-time employment, whereas only 27% of program directors offered part-time residency options. Most departments offered some flexibility in promotion and tenure. Although progress has been made, change still is needed in many areas in pediatric departments and training programs, including better accessibility to quality child care; improved lactation facilities for breastfeeding mothers; clear, written parental leave policies; and flexible work schedules to accommodate changing demands of family life.

  11. Effectiveness of a Batteryless and Wireless Wearable Sensor System for Identifying Bed and Chair Exits in Healthy Older People.

    Science.gov (United States)

    Torres, Roberto Luis Shinmoto; Visvanathan, Renuka; Hoskins, Stephen; van den Hengel, Anton; Ranasinghe, Damith C

    2016-04-15

    Aging populations are increasing worldwide and strategies to minimize the impact of falls on older people need to be examined. Falls in hospitals are common and current hospital technological implementations use localized sensors on beds and chairs to alert caregivers of unsupervised patient ambulations; however, such systems have high false alarm rates. We investigate the recognition of bed and chair exits in real-time using a wireless wearable sensor worn by healthy older volunteers. Fourteen healthy older participants joined in supervised trials. They wore a batteryless, lightweight and wireless sensor over their attire and performed a set of broadly scripted activities. We developed a movement monitoring approach for the recognition of bed and chair exits based on a machine learning activity predictor. We investigated the effectiveness of our approach in generating bed and chair exit alerts in two possible clinical deployments (Room 1 and Room 2). The system obtained recall results above 93% (Room 2) and 94% (Room 1) for bed and chair exits, respectively. Precision was >78% and 67%, respectively, while F-score was >84% and 77% for bed and chair exits, respectively. This system has potential for real-time monitoring but further research in the final target population of older people is necessary.

  12. Effectiveness of a Batteryless and Wireless Wearable Sensor System for Identifying Bed and Chair Exits in Healthy Older People

    Directory of Open Access Journals (Sweden)

    Roberto Luis Shinmoto Torres

    2016-04-01

    Full Text Available Aging populations are increasing worldwide and strategies to minimize the impact of falls on older people need to be examined. Falls in hospitals are common and current hospital technological implementations use localized sensors on beds and chairs to alert caregivers of unsupervised patient ambulations; however, such systems have high false alarm rates. We investigate the recognition of bed and chair exits in real-time using a wireless wearable sensor worn by healthy older volunteers. Fourteen healthy older participants joined in supervised trials. They wore a batteryless, lightweight and wireless sensor over their attire and performed a set of broadly scripted activities. We developed a movement monitoring approach for the recognition of bed and chair exits based on a machine learning activity predictor. We investigated the effectiveness of our approach in generating bed and chair exit alerts in two possible clinical deployments (Room 1 and Room 2. The system obtained recall results above 93% (Room 2 and 94% (Room 1 for bed and chair exits, respectively. Precision was >78% and 67%, respectively, while F-score was >84% and 77% for bed and chair exits, respectively. This system has potential for real-time monitoring but further research in the final target population of older people is necessary.

  13. The rise of granular computing

    Institute of Scientific and Technical Information of China (English)

    YAO Yi-yu

    2008-01-01

    This paper has two purposes. One is to present a critical examination of the rise of granular computing and the other is to suggest a triarchic theory of granular computing. By examining the reasons, justifications, and motivations for the rise of granular computing, we may be able to fully appreciate its scope, goal and potential values. The results enable us to formulate a triarchic theory in the light of research results from many disciplines. The three components of the theory are labeled as the philosophy, the methodology, and the computation. The integration of the three offers a unified view of gran-ular computing as a way of structured thinking, a method of structured problem solving, and a paradigm of structured infor-mation processing, focusing on hierarchical granular structures. The triarchic theory is an important effort in synthesizing the various theories and models of granular computing.

  14. The Posture of India's Rise

    Institute of Scientific and Technical Information of China (English)

    Ma Jiali

    2006-01-01

    @@ India, a large developing country with a population of 1.1 billion,has experienced robust economic growth in recent years. As its economic power steadily builds, its military might, diplomatic the ac-tivities and even its cultural influence are expanding, resulting in its strategic rise. The international community universally believes that India has set foot on the path to become a major power.

  15. Repeatability of Cryogenic Multilayer Insulation

    Science.gov (United States)

    Johnson, W. L.; Vanderlaan, M.; Wood, J. J.; Rhys, N. O.; Guo, W.; Van Sciver, S.; Chato, D. J.

    2017-01-01

    Due to the variety of requirements across aerospace platforms, and one off projects, the repeatability of cryogenic multilayer insulation has never been fully established. The objective of this test program is to provide a more basic understanding of the thermal performance repeatability of MLI systems that are applicable to large scale tanks. There are several different types of repeatability that can be accounted for: these include repeatability between multiple identical blankets, repeatability of installation of the same blanket, and repeatability of a test apparatus. The focus of the work in this report is on the first two types of repeatability. Statistically, repeatability can mean many different things. In simplest form, it refers to the range of performance that a population exhibits and the average of the population. However, as more and more identical components are made (i.e. the population of concern grows), the simple range morphs into a standard deviation from an average performance. Initial repeatability testing on MLI blankets has been completed at Florida State University. Repeatability of five GRC provided coupons with 25 layers was shown to be +/- 8.4 whereas repeatability of repeatedly installing a single coupon was shown to be +/- 8.0. A second group of 10 coupons have been fabricated by Yetispace and tested by Florida State University, through the first 4 tests, the repeatability has been shown to be +/- 16. Based on detailed statistical analysis, the data has been shown to be statistically significant.

  16. Rise, stagnation, and rise of Danish women's life expectancy.

    Science.gov (United States)

    Lindahl-Jacobsen, Rune; Rau, Roland; Jeune, Bernard; Canudas-Romo, Vladimir; Lenart, Adam; Christensen, Kaare; Vaupel, James W

    2016-04-12

    Health conditions change from year to year, with a general tendency in many countries for improvement. These conditions also change from one birth cohort to another: some generations suffer more adverse events in childhood, smoke more heavily, eat poorer diets, etc., than generations born earlier or later. Because it is difficult to disentangle period effects from cohort effects, demographers, epidemiologists, actuaries, and other population scientists often disagree about cohort effects' relative importance. In particular, some advocate forecasts of life expectancy based on period trends; others favor forecasts that hinge on cohort differences. We use a combination of age decomposition and exchange of survival probabilities between countries to study the remarkable recent history of female life expectancy in Denmark, a saga of rising, stagnating, and now again rising lifespans. The gap between female life expectancy in Denmark vs. Sweden grew to 3.5 y in the period 1975-2000. When we assumed that Danish women born 1915-1945 had the same survival probabilities as Swedish women, the gap remained small and roughly constant. Hence, the lower Danish life expectancy is caused by these cohorts and is not attributable to period effects.

  17. A pilot investigation of emotion-focused two-chair dialogue intervention for self-criticism.

    Science.gov (United States)

    Shahar, Ben; Carlin, Erica R; Engle, David E; Hegde, Jayanta; Szepsenwol, Ohad; Arkowitz, Hal

    2012-01-01

    Self-criticism plays a key role in many psychological disorders and predicts poor outcome in psychotherapy. Yet, psychotherapy research directly targeting self-critical processes is limited. In this pilot study, we examined the efficacy of an emotion-focused intervention, the two-chair dialogue task, on self-criticism, self-compassion and the ability to self-reassure in times of stress, as well as on depressive and anxiety symptoms among nine self-critical clients. Results showed that the intervention was associated with significant increases in self-compassion and self-reassuring, and significant reductions in self-criticism, depressive symptoms and anxiety symptoms. Effect sizes were medium to large, with most clients exhibiting low and non-clinical levels of symptomatology at the end of therapy, and maintaining gains over a 6-month follow-up period. Although preliminary, these finding suggest that emotion-focused chair work might be a promising intervention addressing self-criticism. Self-criticism is an important process in a variety of clinical disorders and predicts poor outcome in brief therapy for depression. Yet, little is known about how self-criticism can be effectively addressed in psychological treatment. Practitioners can benefit from increasing their awareness of self-critical processes in their clinical work, and from directly working with emotions in addressing self-criticisim. Emotion-focused two-chair dialogue intervention can be effective in reducing self-criticism, increasing self-compassion, and decreasing depressive and anxiety symptoms, and these improvements are largely maintained six months after therapy. Copyright © 2011 John Wiley & Sons, Ltd.

  18. Analysis of CR1 Repeats in the Zebra Finch Genome

    Directory of Open Access Journals (Sweden)

    George E. Liu

    2013-06-01

    Full Text Available Most bird species have smaller genomes and fewer repeats than mammals. Chicken Repeat 1 (CR1 repeat is one of the most abundant families of repeats, ranging from ~133,000 to ~187,000 copies accounting for ~50 to ~80% of the interspersed repeats in the zebra finch and chicken genomes, respectively. CR1 repeats are believed to have arisen from the retrotransposition of a small number of master elements, which gave rise to multiple CR1 subfamilies in the chicken. In this study, we performed a global assessment of the divergence distributions, phylogenies, and consensus sequences of CR1 repeats in the zebra finch genome. We identified and validated 34 CR1 subfamilies and further analyzed the correlation between these subfamilies. We also discovered 4 novel lineage-specific CR1 subfamilies in the zebra finch when compared to the chicken genome. We built various evolutionary trees of these subfamilies and concluded that CR1 repeats may play an important role in reshaping the structure of bird genomes.

  19. Facing up to sea rise.

    Science.gov (United States)

    Pernetta, J

    1994-01-01

    A milder and less extreme climate, abundance of fish and mollusks, transport and communication, and fertile land at low altitudes have drawn humans to coastal areas and river valleys for centuries. More than 60% of the world's population occupy the 150 km closest to the coast. Millions of tourists come to coastlines and small tropical islands for recreation. About 80% of the global fish supply originates from the 19 km closest to the shore. Fish are the only protein source for the rapidly growing populations in many developing countries. Global climate change is increasing the sea level so much that by 2050, the mean increase will be about 38 cm (24-52 cm). The Intergovernmental Panel on Climate Change (IPCC) notes that the effects of sea level rise will differ from place to place. Direct effects are flooding of low-lying coastal areas and increased erosion rates. An indirect effect includes higher water tables and intrusion of saline water into aquifers, resulting in loss of fresh ground water resources. These effects may make coastal areas less suitable for settlement and agriculture. Coral sand settled on top of coral reefs makes up the unstable, small atoll islands of the Pacific and Indian Oceans. People on these islands depend almost entirely on the sea for their livelihood and on the small amount of fresh water with which they grow root crops and drink. Rising sea levels also threaten low lying countries, e.g., Bangladesh, and densely populated deltas, e.g., the Nile. Changes in the frequency and severity of flooding will increase Bangladesh's dependence on foreign aid. IPCC sees 3 possible responses to the rising sea level: defense, retreat, and accommodation. Accommodation is the only practical choice for many developing countries. A switch from rice cultivation to mariculture of prawns and fish is an example of accommodation. We need to more completely understand the natural processes in coastal environments to be better prepared for climate change.

  20. More than Rising Grain Prices

    Institute of Scientific and Technical Information of China (English)

    Hu Junhua

    2010-01-01

    @@ According to the bulletin of the National Bureau of Statistics,the summer harvest nationwide this year was 246.2billion jin,a decline of 0.3% compared to last year.The cold spell in late spring and high temperatures afterwards are considered as the main causes for this round of rising grain prices.However,"natural disasters"are dwarfed by another worrisome picture: young and strong farming hands flooding out of the rural areas and the elderly,the weak,females and children are made the mainstay of the tilling army.

  1. Alarming Rise In Birth Defects

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    A rapid rise in birth defects has prompted China to look for causes and solutionsEvery 60 seconds two children are born in China with a handicap.It’s an alarming fact,but one that young adults across the country who hope to have children face every day. At a conference on the prevention of birth defects in Chengdu of Sichuan Province in September,Vice Minister of the National Population and Family Planning Commission Jiang Fan revealed this inconvenient truth, supported by shocking statistics.

  2. THE 30-S CHAIR STAND TEST AND HABITUAL MOBILITY PREDICT REHABILITATION NEEDS AFTER ACUTE ADMISSION

    DEFF Research Database (Denmark)

    Hansen Bruun, Inge; Nørgaard, Birgitte; Maribo, Thomas

    2016-01-01

    as elderly might be confused or unrealistic about their physical abilities. The 30-s Chair Stand Test (30s-CST) has not been validated in ED, but is used at community level for this purpose. The De Morton Mobility Index (DEMMI) has been validated for acute patients. Our study evaluated if a 30s-CST-score ≤8...... patients were assessed on admission and one month after. Predictors for later functional decline were analysed in logistics regression models. Results: 117 patients were included. The baseline predictors were: Female gender: (OR 1.6); using assistive device (OR 4.6); reduced ability to climb a stairway (OR...... with habitual mobility....

  3. [90th anniversary of the Chair and Department of Forensic Medicine Poznan University of Medical Sciences].

    Science.gov (United States)

    Zaba, Czesław

    2011-01-01

    The paper outlines the history of the Chair and Department of Forensic Medicine Poznan University of Medical Sciences since it was established until today. Changes in the appearance and organization of the seat of the institution were discussed briefly. The profiles of all former heads of the Department, their contribution to the development and improvement of the institution and formation of the new scientific forensic medicine staff were presented. The specification and analysis of the scientific staff achievements was performed, especially taking into account their scientific publications and scope of the research that contributed to the efficient service activities for the prosecution and police, as well as society.

  4. Do Institutional Logics Predict Interpretation of Contract Rules at the Dental Chair-side?

    DEFF Research Database (Denmark)

    Harris, Rebecca; Brown, Stephen; Holt, Robin

    2014-01-01

    In quasi-markets, contracts find purchasers influencing health care providers, although problems exist where providers use personal bias and heuristics to respond to written agreements, tending towards the moral hazard of opportunism. Previous research on quasi-market contracts typically...... earlier qualitative work where we identified four institutional logics in English general dental practice, and six dental contract areas where there was scope for opportunism; in 2013 we surveyed 924 dentists to investigate these logics and whether they had predictive purchase over dentists' chair......-side behaviour. Factor analysis involving 300 responses identified four logics entwined in (often technical) behaviour: entrepreneurial commercialism, duty to staff and patients, managerialism, public good....

  5. Rise of the Ethical Machines

    Science.gov (United States)

    2012-06-01

    Roger Clarke, “Asimov’s Laws of Robotics: Implications for Information Technology – Part II,” IEEE Computer 27, no. 1 (Jan 1994), 57 – 66. Clarke’s...resolve loopholes.23 Roger Clarke provides an extended set of the Laws of Robotics. The Meta-Law: A robot may not act unless its actions are subject to...Winnie Mae. Two years later, he repeated the feat, this time flying solo. A Sperry A-2 automatic pilot was essential for Post to accomplish this

  6. Sea Level Rise Data Discovery

    Science.gov (United States)

    Quach, N.; Huang, T.; Boening, C.; Gill, K. M.

    2016-12-01

    Research related to sea level rise crosses multiple disciplines from sea ice to land hydrology. The NASA Sea Level Change Portal (SLCP) is a one-stop source for current sea level change information and data, including interactive tools for accessing and viewing regional data, a virtual dashboard of sea level indicators, and ongoing updates through a suite of editorial products that include content articles, graphics, videos, and animations. The architecture behind the SLCP makes it possible to integrate web content and data relevant to sea level change that are archived across various data centers as well as new data generated by sea level change principal investigators. The Extensible Data Gateway Environment (EDGE) is incorporated into the SLCP architecture to provide a unified platform for web content and science data discovery. EDGE is a data integration platform designed to facilitate high-performance geospatial data discovery and access with the ability to support multi-metadata standard specifications. EDGE has the capability to retrieve data from one or more sources and package the resulting sets into a single response to the requestor. With this unified endpoint, the Data Analysis Tool that is available on the SLCP can retrieve dataset and granule level metadata as well as perform geospatial search on the data. This talk focuses on the architecture that makes it possible to seamlessly integrate and enable discovery of disparate data relevant to sea level rise.

  7. The Fall and Rise Again of Plantations in Tropical Asia: History Repeated?

    Directory of Open Access Journals (Sweden)

    Derek Byerlee

    2014-06-01

    Full Text Available The type of agrarian structure employed to produce tropical commodities affects many dimensions of land use, such as ownership inequality, overlapping land rights and conflicts, and land use changes. I conduct a literature review of historical changes in agrarian structures of commodities grown on the upland frontier of mainland Southeast and South Asia, using a case study approach, of tea, rubber, oil palm and cassava. Although the production of all these commodities was initiated in the colonial period on large plantations, over the course of the 20th century, most transited to smallholder systems. Two groups of factors are posited to explain this evolution. First, economic fundamentals related to processing methods and pioneering costs and risks sometimes favored large-scale plantations. Second, policy biases and development paradigms often strongly favored plantations and discriminated against smallholders in the colonial states, especially provision of cheap land and labor. However, beginning after World War I and accelerating after independence, the factors that propped up plantations changed so that by the end of the 20th century, smallholders overwhelmingly dominated perennial crop exports, except possibly oil palm. Surprisingly, in the 21st century there has been a resurgence of investments in plantation agriculture in the frontier countries of Cambodia, Laos and Myanmar, driven by very similar factors to a century ago, especially access to cheap land combined with high commodity prices. As in the last century, this may be a temporary aberration from the long-run trend toward smallholders, but much depends on local political economy.

  8. The effect of overbooking on idle dental chair capacity in the Pretoria region of the Gauteng Oral Health Services.

    Science.gov (United States)

    Holtshousen, W S J; Coetzee, E

    2012-09-01

    An analysis of annual reports revealed that on average 20% of patient appointments with oral hygienists in the Department of Health in the Pretoria region were not utilised due to patient noncompliance (i.e. broken appointments). Many solutions have been considered to address the high rate of noncompliance and the resulting idle chair capacity. One solution selected to overcome some of the negative consequences of broken appointments was deliberate overbooking. The aim of our study was to determine the effect of overbooking on idle dental chair capacity by measuring the utilisation rate over a three month period (July to September) after 25% overbooking was introduced in the Pretoria region. A statistical analysis was conducted on our results to determine an overbooking rate that would ensure full utilisation of the available dental chair capacity. The available time units over the three month study period amounted to 1365, allocated to 1427 patients resulting in an overal overbooking rate of 4.54%. The overall utilisation rate was found to be 79.2%. The calculated regression line estimated that there would be full utilisation of dental chair capacity at an overbooking rate of 26.7%. Overbooking at the levels applied in this study had a minimal overall effect on idle dental chair capacity. Our results confirm the need for careful planning and management in addressing noncompliance. In a manner similar to the clinical situation, organisational development requires a correct diagnosis in order that an appropriate and effective intervention may be designed.

  9. Kinematic analysis of posterior-stabilized total knee arthroplasty during standing up from and sitting down on a chair.

    Science.gov (United States)

    Mine, Takatomo; Hoshi, Kenji; Gamada, Kazuyoshi; Ihara, Koichiro; Kawamura, Hiroyuki; Kuriyama, Ryutaro; Date, Ryo

    2016-11-17

    Total knee arthroplasty is effective to regain quality of life. Standing up from and sitting down on a chair and stair stepping motion are important in daily living. We previously reported in vivo kinematics of this implant during a stepping exercise. The purpose of this analysis was to assess in vivo knee motion during standing up from and sitting down on a chair and determine the motion pattern in patients with the unique knee prosthesis. A total of 15 patients implanted with Bi-Surface PS were assessed during standing up from and sitting down on a chair. The Bi-Surface PS knee is a posterior-cruciate substitute prosthesis with a unique ball-and-socket joint in the mid-posterior portion of the femoral and tibial components. Patients were examined during standing up from and sitting down on a chair using a two-dimensional to three-dimensional registration technique. During standing up from and sitting down on a chair from minimum to 30° knee flexion, anterior femoral translation was slight. From 30° knee flexion to maximum flexion, the kinematic pattern was a medial pivot and rollback. This study demonstrated that the knee motion kinematic patterns observed in this study were not similar to normal knee kinematics and derived from the unique design of the Bi-Surface PS.

  10. Design and experimental evaluation of yoked hand-clutching for a lever drive chair.

    Science.gov (United States)

    Sarigul-Klijn, Yasemin; Smith, Brendan W; Reinkensmeyer, David J

    2017-05-16

    Lever-drive wheelchairs lower physical strain but are less maneuverable than push-rim wheelchairs. Here, we study a possible solution in which the user simultaneously actuates clutches mounted between the levers and wheels each stroke via a clutch handle attached to one lever; this solution is of particular interest for user groups with only one functional hand. First, to demonstrate maneuverability, we show how this "yoked clutch" allows an experienced user to maneuver a constrained space. Then, we compared the difficulty of learning a yoked clutch chair to a conventional lever-drive transmission (i.e. a one-way bearing). Twenty-two unimpaired novice adults navigated a figure-eight track during six training sessions over two weeks. Participant mean speed improved roughly 60% for both chairs, with similar exponential improvement time constants (3 days) and final speeds. However, speed improvement mostly took place overnight rather than within the session for hand-clutching, and the physiological cost index was also about 40% higher. These results indicate that while hand-clutching is no more difficult to learn than a lever-drive, it is reliant on overnight improvement. Also, its increased maneuverability comes with decreased efficiency. We discuss how the yoked clutch may be particularly well suited for individuals with stroke during inpatient rehabilitation.

  11. Physiological Motion Axis for the Seat of a Dynamic Office Chair.

    Science.gov (United States)

    Kuster, Roman Peter; Bauer, Christoph Markus; Oetiker, Sarah; Kool, Jan

    2016-09-01

    The aim of this study was to determine and verify the optimal location of the motion axis (MA) for the seat of a dynamic office chair. A dynamic seat that supports pelvic motion may improve physical well-being and decrease the risk of sitting-associated disorders. However, office work requires an undisturbed view on the work task, which means a stable position of the upper trunk and head. Current dynamic office chairs do not fulfill this need. Consequently, a dynamic seat was adapted to the physiological kinematics of the human spine. Three-dimensional motion tracking in free sitting helped determine the physiological MA of the spine in the frontal plane. Three dynamic seats with physiological, lower, and higher MA were compared in stable upper body posture (thorax inclination) and seat support of pelvic motion (dynamic fitting accuracy). Spinal kinematics during sitting and walking were compared. The physiological MA was at the level of the 11th thoracic vertebra, causing minimal thorax inclination and high dynamic fitting accuracy. Spinal motion in active sitting and walking was similar. The physiological MA of the seat allows considerable lateral flexion of the spine similar to walking with a stable upper body posture and a high seat support of pelvic motion. The physiological MA enables lateral flexion of the spine, similar to walking, without affecting stable upper body posture, thus allowing active sitting while focusing on work. © 2016, Human Factors and Ergonomics Society.

  12. Different Brain Responses to Pain and Its Expectation in the Dental Chair.

    Science.gov (United States)

    Racek, A J; Hu, X; Nascimento, T D; Bender, M C; Khatib, L; Chiego, D; Holland, G R; Bauer, P; McDonald, N; Ellwood, R P; DaSilva, A F

    2015-07-01

    A dental appointment commonly prompts fear of a painful experience, yet we have never fully understood how our brains react to the expectation of imminent tooth pain once in a dental chair. In our study, 21 patients with hypersensitive teeth were tested using nonpainful and painful stimuli in a clinical setting. Subjects were tested in a dental chair using functional near-infrared spectroscopy to measure cortical activity during a stepwise cold stimulation of a hypersensitive tooth, as well as nonpainful control stimulation on the same tooth. Patients' sensory-discriminative and emotional-cognitive cortical regions were studied through the transition of a neutral to a painful stimulation. In the putative somatosensory cortex contralateral to the stimulus, 2 well-defined hemodynamic peaks were detected in the homuncular orofacial region: the first peak during the nonpainful phase and a second peak after the pain threshold was reached. Moreover, in the upper-left and lower-right prefrontal cortices, there was a significant active hemodynamic response in only the first phase, before the pain. Subsequently, the same prefrontal cortical areas deactivated after a painful experience had been reached. Our study indicates for the first time that pain perception and expectation elicit different hemodynamic cortical responses in a dental clinical setting.

  13. Correlated Random Systems Five Different Methods : CIRM Jean-Morlet Chair

    CERN Document Server

    Kistler, Nicola

    2015-01-01

    This volume presents five different methods recently developed to tackle the large scale behavior of highly correlated random systems, such as spin glasses, random polymers, local times and loop soups and random matrices. These methods, presented in a series of lectures delivered within the Jean-Morlet initiative (Spring 2013), play a fundamental role in the current development of probability theory and statistical mechanics. The lectures were: Random Polymers by E. Bolthausen, Spontaneous Replica Symmetry Breaking and Interpolation Methods by F. Guerra, Derrida's Random Energy Models by N. Kistler, Isomorphism Theorems by J. Rosen and Spectral Properties of Wigner Matrices by B. Schlein. This book is the first in a co-edition between the Jean-Morlet Chair at CIRM and the Springer Lecture Notes in Mathematics which aims to collect together courses and lectures on cutting-edge subjects given during the term of the Jean-Morlet Chair, as well as new material produced in its wake. It is targeted at researchers, i...

  14. A smart health monitoring chair for nonintrusive measurement of biological signals.

    Science.gov (United States)

    Baek, Hyun Jae; Chung, Gih Sung; Kim, Ko Keun; Park, Kwang Suk

    2012-01-01

    We developed nonintrusive methods for simultaneous electrocardiogram, photoplethysmogram, and ballistocardiogram measurements that do not require direct contact between instruments and bare skin. These methods were applied to the design of a diagnostic chair for unconstrained heart rate and blood pressure monitoring purposes. Our methods were operationalized through capacitively coupled electrodes installed in the chair back that include high-input impedance amplifiers, and conductive textiles installed in the seat for capacitive driven-right-leg circuit configuration that is capable of recording electrocardiogram information through clothing. Photoplethysmograms were measured through clothing using seat mounted sensors with specially designed amplifier circuits that vary in light intensity according to clothing type. Ballistocardiograms were recorded using a film type transducer material, polyvinylidenefluoride (PVDF), which was installed beneath the seat cover. By simultaneously measuring signals, beat-to-beat heart rates could be monitored even when electrocardiograms were not recorded due to movement artifacts. Beat-to-beat blood pressure was also monitored using unconstrained measurements of pulse arrival time and other physiological parameters, and our experimental results indicated that the estimated blood pressure tended to coincide with actual blood pressure measurements. This study demonstrates the feasibility of our method and device for biological signal monitoring through clothing for unconstrained long-term daily health monitoring that does not require user awareness and is not limited by physical activity.

  15. Simulation of a Congress at the Chair of Biology II in Bioengineering

    Science.gov (United States)

    Naranjo, A. V.; Reznichenco, V.; López, N.; Hernández, R.; Bajinay, S.

    2007-11-01

    This work has been developed in the Chair of Biology II, the curricular contents of which correspond to Human Anatomy. This subject is taught in the second semester of the second year of studies in Bioengineering. Our main objective is that the students attending the course may integrate the syllabus contents of Anatomy with those of other subjects in the career. Ever since 1998 we have organized a congress named Congreso Intracátedra de Biología II (Intra Chair Congress on Biology II). This is the last assignment in the semester and is compulsory for regular students of the subject. It consists in simulating a scientific congress with international characteristics. The guidelines for the congress are made known to the students at the beginning of the semester. In groups of up to three members, the students must undertake a work that relates aspects of Anatomy with Bioengineering. Students are expected to investigate on diagnostic and/or therapeutic technology in order to write a paper that must be accepted in advance of the event. The presentation of the work must be made through PowerPoint. The originality of the research work done and the wide range of topics selected are surprising. Problems are tackled from the standpoints both of the various medical fields and of bioengineering despite the fact that they are just students of the second year in Bioengineering.

  16. Rising Prices in the YRD

    Institute of Scientific and Technical Information of China (English)

    WANG PEI

    2006-01-01

    @@ As one of the big two economic engines of China, foreign investment in the Yangtze River Delta area is suffering more than most from higher costs "Although human resource costs are generally going up in China, the costs in the Yangtze River Delta (YRD) area have been rising even faster" says Liu Yuansen, a member of the Shanghai representative office of the Japan External Trade Organization. At present, Shanghai and its surrounding area is home to at least half of the roughly 20,000 Japanese-invested companies in China. But for the small and mediumsized Japanese-invested companies, this area is losing its low cost advantage, particularly in terms of human resources and land. Last year, Japanese investment in China increased but the growth rate declined. In Shanghai's neighboring province of Jiangsu, the number of Japanese manufacturing enterprises has reportedly started to decline.

  17. Estimation of Comfortable/Uncomfortable Feeling Based on EEG by Using NN and k-means Algorithm for Massage Chair

    Science.gov (United States)

    Teramae, Tatsuya; Kushida, Daisuke; Takemori, Fumiaki; Kitamura, Akira

    A present massage chair realizes the massage motion and force designed by a professional masseur. However, appropriate massage force to the user can not be provided by the massage chair in such a method. On the other hand, the professional masseur can realize an appropriate massage force to more than one patient, because, the masseur considers the physical condition of the patient. Our research proposed the intelligent massage system of applying masseur's procedure for the massage chair using estimated skin elasticity and DB to relate skin elasticity and massage force. However, proposed system has a problem that DB does not adjust to unknown user, because user's feeling by massage can not be estimated. Then, this paper proposed the estimation method of comfortable/uncomfortable feeling based on EEG using the neural network and k-means algorithm. The realizability of the proposed method is verified by the experimental works.

  18. Expansion of protein domain repeats.

    Directory of Open Access Journals (Sweden)

    Asa K Björklund

    2006-08-01

    Full Text Available Many proteins, especially in eukaryotes, contain tandem repeats of several domains from the same family. These repeats have a variety of binding properties and are involved in protein-protein interactions as well as binding to other ligands such as DNA and RNA. The rapid expansion of protein domain repeats is assumed to have evolved through internal tandem duplications. However, the exact mechanisms behind these tandem duplications are not well-understood. Here, we have studied the evolution, function, protein structure, gene structure, and phylogenetic distribution of domain repeats. For this purpose we have assigned Pfam-A domain families to 24 proteomes with more sensitive domain assignments in the repeat regions. These assignments confirmed previous findings that eukaryotes, and in particular vertebrates, contain a much higher fraction of proteins with repeats compared with prokaryotes. The internal sequence similarity in each protein revealed that the domain repeats are often expanded through duplications of several domains at a time, while the duplication of one domain is less common. Many of the repeats appear to have been duplicated in the middle of the repeat region. This is in strong contrast to the evolution of other proteins that mainly works through additions of single domains at either terminus. Further, we found that some domain families show distinct duplication patterns, e.g., nebulin domains have mainly been expanded with a unit of seven domains at a time, while duplications of other domain families involve varying numbers of domains. Finally, no common mechanism for the expansion of all repeats could be detected. We found that the duplication patterns show no dependence on the size of the domains. Further, repeat expansion in some families can possibly be explained by shuffling of exons. However, exon shuffling could not have created all repeats.

  19. Relationship between Features of Desks and Chairs and Prevalence of Skeletal Disorders in Primary School Students in Abadan

    Directory of Open Access Journals (Sweden)

    Yadollah Zakeri

    2016-11-01

    Full Text Available BackgroundSitting on inappropriate benches, as well as the poor posture (body position during the years of growth, can lead to spinal disorders, fatigue and discomfort in students. This study aimed to investigate the relationship between features of desks and chairs and prevalence of some musculoskeletal disorders in primary school students in Abadan.Materials and MethodsThis cross-sectional study was conducted in 2015 in the city of Abadan- South West of Iran; for which, 383 primary school students were selected and studied through cluster sampling method. Data were collected by the checkered board and researcher-made questionnaire. Features and dimensions of desks and chairs of students were recorded and evaluated based on their condition (being standard or not. Statistical analysis was conducted using SPSS, version 22; and then, descriptive statistics and Chi-square test were conducted.ResultsStudy results showed that about 56.1% of the desks and chairs in under study schools were non-standard. It found that drooping shoulder (85.4% and scoliosis (81.7% were the more prevalent disorders and back straight (1.6% was the least frequent disorder. There was a significant relationship between the variable of non-standard desks and chairs and prevalence of drooping shoulders (P=0.001, scoliosis (P= 0.04, kyphosis (P=0.007 and lordosis (P=0.002 disorders in students.ConclusionThe non-standard-sized desks and chairs increase the prevalence of skeletal disorders in schoolchildren. Therefore, it is essential to pay attention to design and build standard classroom desks and chairs, which are best, adjust to students’ physics.

  20. DWI Repeaters and Non-Repeaters: A Comparison.

    Science.gov (United States)

    Weeber, Stan

    1981-01-01

    Discussed how driving-while-intoxicated (DWI) repeaters differed signigicantly from nonrepeaters on 4 of 23 variables tested. Repeaters were more likely to have zero or two dependent children, attend church frequently, drink occasionally and have one or more arrests for public intoxication. (Author)

  1. To Repeat or Not to Repeat a Course

    Science.gov (United States)

    Armstrong, Michael J.; Biktimirov, Ernest N.

    2013-01-01

    The difficult transition from high school to university means that many students need to repeat (retake) 1 or more of their university courses. The authors examine the performance of students repeating first-year core courses in an undergraduate business program. They used data from university records for 116 students who took a total of 232…

  2. Nifty Nines and Repeating Decimals

    Science.gov (United States)

    Brown, Scott A.

    2016-01-01

    The traditional technique for converting repeating decimals to common fractions can be found in nearly every algebra textbook that has been published, as well as in many precalculus texts. However, students generally encounter repeating decimal numerals earlier than high school when they study rational numbers in prealgebra classes. Therefore, how…

  3. Nifty Nines and Repeating Decimals

    Science.gov (United States)

    Brown, Scott A.

    2016-01-01

    The traditional technique for converting repeating decimals to common fractions can be found in nearly every algebra textbook that has been published, as well as in many precalculus texts. However, students generally encounter repeating decimal numerals earlier than high school when they study rational numbers in prealgebra classes. Therefore, how…

  4. Do institutional logics predict interpretation of contract rules at the dental chair-side?

    Science.gov (United States)

    Harris, Rebecca; Brown, Stephen; Holt, Robin; Perkins, Elizabeth

    2014-01-01

    In quasi-markets, contracts find purchasers influencing health care providers, although problems exist where providers use personal bias and heuristics to respond to written agreements, tending towards the moral hazard of opportunism. Previous research on quasi-market contracts typically understands opportunism as fully rational, individual responses selecting maximally efficient outcomes from a set of possibilities. We take a more emotive and collective view of contracting, exploring the influence of institutional logics in relation to the opportunistic behaviour of dentists. Following earlier qualitative work where we identified four institutional logics in English general dental practice, and six dental contract areas where there was scope for opportunism; in 2013 we surveyed 924 dentists to investigate these logics and whether they had predictive purchase over dentists' chair-side behaviour. Factor analysis involving 300 responses identified four logics entwined in (often technical) behaviour: entrepreneurial commercialism, duty to staff and patients, managerialism, public good. PMID:25441320

  5. The gym ball as a chair for the back pain patient: a two case report.

    Science.gov (United States)

    Merritt, Larry G; Merritt, Celynne M

    2007-03-01

    The popularity of the gym ball has led to its increased use in programs designed for fitness, rehabilitation and prevention. Some people are using the gym ball to replace the office chair and others are sitting on it at home, which has created some controversy among therapists, researchers, ergonomics experts and the general public. The controversy is due in part to a lack of knowledge and experience with this application for the gym ball. Both patients in this report were suffering with low back pain, and both improved when they began consistently using the gym ball. There are two reasons for case presentations, to document a treatment of a condition and to promote discussion that may lead to research. This presentation will hopefully accomplish this.

  6. Common mode noise cancellation for electrically non-contact ECG measurement system on a chair.

    Science.gov (United States)

    Keun Kim, Ko; Kyu Lim, Yong; Suk Park, Kwang

    2005-01-01

    Electrically non-contact ECG measurement system on a chair can be applied to a number of various fields for continuous health monitoring in daily life. However, the body is floated electrically for this system due to the capacitive electrodes and the floated body is very sensitive to the external noises or motion artifacts which affect the measurement system as the common mode noise. In this paper, the Driven-Seat-Ground circuit similar to the Driven-Right-Leg circuit is proposed to reduce the common mode noise. The analysis of this equivalent circuit is performed and the output signal waveforms are compared between with Driven-Seat-Ground and with capacitive ground. As the results, the Driven-Seat-Ground circuit improves significantly the properties of the fully capacitive ECG measurement system as the negative feedback.

  7. Rocking-chair configuration in ultrathin lithium vanadate-graphene hybrid nanosheets for electrical modulation.

    Science.gov (United States)

    Zhu, Haiou; Qin, Xinming; Sun, Xu; Yan, Wensheng; Yang, Jinlong; Xie, Yi

    2013-01-01

    The ability to control electronic property of a material by externally applied voltage is greatly anticipated in modern electronics, and graphene provide potential application foreground for this issue on account of its exotic ambipolar transport property. In this study, we proposed that inorganic-graphene intercalated nanosheet is an effective solution to optimize the transport property of graphene. As an example, lithium vanadate-graphene (LiVO-graphene) alternately intercalated nanosheets were designed and successfully synthesized. Theoretical calculation implied that its rocking chair configuration may provide a new pathway to switch the carrier in graphene layer between p-type and n-type while the position of embedded Li ions is controlled by an external field. Thus, a demo transistor was fabricated with layer-by-layer overlapping of LiVO-graphene nanosheets which proved that this inorganic-graphene structure could be used for electrical modulation in electronic devices.

  8. How well does the 30-second Chair Stand Test predict rehabilitation needs?

    DEFF Research Database (Denmark)

    Hansen Bruun, Inge; Nørgaard, Birgitte; Backer Mogensen, Christian;

    prospective cohort study will include 156 elderly patients (65+) with medical complaints. Assessments will be undertaken at the time of hospitalization and 7-9 days later. The risk factors studied are: a) symptoms for hospitalization, b) number of prescribed drugs, c) number of falls, d) habitual functional......Background The assessment of acutely admitted elderly medical patients’ need for rehabilitation is statutory and important for their independence. However, in an emergency department the assessment can be difficult as it has to be performed within 48 hours, when functional performance may...... of functional decline. The 30-Second Chair Stand Test (30s-CST) is recommended by the Danish Health and Medicines Authority for screening of functional decline in elderly citizens living in their own home. However, its validity with hospitalized patients is undocumented, and it is unclear whether loss...

  9. All-photonic quantum repeaters

    Science.gov (United States)

    Azuma, Koji; Tamaki, Kiyoshi; Lo, Hoi-Kwong

    2015-01-01

    Quantum communication holds promise for unconditionally secure transmission of secret messages and faithful transfer of unknown quantum states. Photons appear to be the medium of choice for quantum communication. Owing to photon losses, robust quantum communication over long lossy channels requires quantum repeaters. It is widely believed that a necessary and highly demanding requirement for quantum repeaters is the existence of matter quantum memories. Here we show that such a requirement is, in fact, unnecessary by introducing the concept of all-photonic quantum repeaters based on flying qubits. In particular, we present a protocol based on photonic cluster-state machine guns and a loss-tolerant measurement equipped with local high-speed active feedforwards. We show that, with such all-photonic quantum repeaters, the communication efficiency scales polynomially with the channel distance. Our result paves a new route towards quantum repeaters with efficient single-photon sources rather than matter quantum memories. PMID:25873153

  10. 多功能便携式椅的研发%Development of multifunctional portable chair

    Institute of Scientific and Technical Information of China (English)

    章斌; 俞飞; 陈浩

    2015-01-01

    In this paper, a combined form through changing the connection of steel frame structure, realize the integration of tables with table, chair, bed, and other functions of conversion between multi-function chairs and tables, its structure is simple, low cost, light and convenient, easy to use, functional diversity. The product scope is wide, suitable for the general consumers in the home, hospitals, schools, enterprises, and many other places of use, also suitable for use by the army, police mission or primary and secondary school students used as integrated table and stool. There are not any similar function products on the market, it has good prospects for application.%文章介绍了一种通过改变钢架结构的连接组合形式,实现一体化桌凳、靠背椅、床上用桌等功能之间的转换的多功能桌椅,其结构简单,成本低廉,轻巧便捷,使用方便,功能多样.该产品适用范围广,适合于一般的消费者在家庭、医院、学校、企业等众多场所使用,也适合军队、警察执行任务时使用或中小学生作为一体化桌凳使用.当前市场上未见有类似功能产品,应用前景良好.

  11. Comparison of Resistance and Chair Yoga Training on Subjective Sleep Quality in MCI Women

    Directory of Open Access Journals (Sweden)

    Maria Karydaki

    2017-01-01

    Full Text Available Background: Self-rated sleep disorders are common in older adults, resulting in various health problems. Two types of exercise are suggested as an affordable and accessible non-pharmacological treatment and are being compared and discussed. Objectives: This randomized, controlled, 12-week trial investigates the effects of different types of exercise (resistance vs chair yoga training on subjective sleep quality, in women with Mild Cognitive Impairment (MCI. Methods: In order to measure cognitive function, the Mini-Mental State Examination (MMSE was used. Forty nine participants enrolled in the study were randomized to a resistance training program (n=16, or a chair yoga program (n=15, or a control group (n=18. All participants engaged in cognitive activities. Results: At baseline, PSQI scores for CYG, RTG and CG (8.2±5.1, 6.1±4.3, 7.4±4.1, respectively and MMSE (28.3±1.4, 27.8±1.2, 28.0±2.3, respectively did not differ statistically between the three groups (F2,46= 1.993, p= 0.143. After the intervention, a significant improvement in PSQI total score was noted in resistance training group (t=2.335, df15, p=0.03. Conclusions: There were no significant differences between groups before and after test for the PSQI subscale scores (sleep onset latency (h, time spent in bed before sleep (min, morning waking up (h and sleep duration (h. No significant difference was found in PSQI subscales scores within each group. This study proposes that resistance training is an effective treatment approach to improve sleep quality in women with mild cognitive impairment.

  12. DOE Chair of Excellence in Environmental Disciplines-Final Technical Report

    Energy Technology Data Exchange (ETDEWEB)

    Kurunganty, Sastry; Loran, Roberto; Roque-Malherbe, Rolando; Hijazi, Yazan; Nieto, Santander; Gomez, Will A.; Duconge, Jose; Cotto, María del C.; Muniz, Carlos; Diaz, Francisco J.; Neira, Carlos F.; Marquez, Francisco; Del Valle, W.; Thommes, M.

    2014-02-19

    The report Massie Chair of Excellence Program at Universidad del Turabo, contract DE-FG02-95EW12610, during the period of 9/29/1995 to 9/29/2011. The initial program aims included development of academic programs in the Environmental Sciences and Engineering, and Research and Development focused initially on environmentally friendly processes and later revised also include: renewable energy and international cooperation. From 1995 -2005, the Program at UT lead the establishment of the new undergraduate program in electrical engineering at the School of Engineering (SoE), worked on requirements to achieve ABET accreditation of the SoE B.S. Mechanical Engineering and B.S. Electrical Engineering programs, mentored junior faculty, taught undergraduate courses in electrical engineering, and revised the electrical engineering curriculum. Engineering undergraduate laboratories were designed and developed. The following research sub-project was developed: Research and development of new perovskite-alumina hydrogen permeable asymmetrical nanostructured membranes for hydrogen purification, and extremely high specific surface area silica materials for hydrogen storage in the form of ammonia, Dr. Rolando Roque-Malherbe Subproject PI, Dr. Santander Nieto and Mr. Will Gómez Research Assistants. In 2006, the Massie Chair of Excellence Program was transferred to the National Nuclear Security Agency, NNSA and DNN. DoE required a revised proposal aligned with the priorities of the Administration. The revised approved program aims included: (1) Research (2) Student Development: promote the development of minority undergraduate and graduate students through research teams, internships, conferences, new courses; and, (3) Support: (a) Research administration and (b) Dissemination through international conferences, the UT Distinguished Lecturer Series in STEM fields and at the annual Universidad del Turabo (UT) Researchers Conference. Research included: Sub-Project 1: Synthesis and

  13. 77 FR 6536 - Approval for Manufacturing Authority; Foreign-Trade Zone 177; Best Chair, Inc., d/b/a Best Home...

    Science.gov (United States)

    2012-02-08

    ... Foreign-Trade Zones Board Approval for Manufacturing Authority; Foreign-Trade Zone 177; Best Chair, Inc., d/b/a Best Home Furnishings, Inc. (Upholstered Furniture); Ferdinand, Cannelton, and Paoli, IN..., grantee of Foreign-Trade Zone 177, has requested manufacturing authority on behalf of Best Chair, Inc., d...

  14. «E-SCIENTROCHAIR»- ONLINE DATABASE FOR MANAGEMENT AND ASSESSMENT OF THE RESEARCH RESOURCES OF THE UNIVERSITY BASIS UNIT – THE CHAIR

    Directory of Open Access Journals (Sweden)

    MIHAI Florin

    2009-05-01

    Full Text Available The concept named e-ScientRoChair proposes searching for new informing and documentation opportunities, on fundamental structure in academic scientific research, meaning the chair or the research team, anabling the possibility to publish and as well as to

  15. 77 FR 59975 - Certain Folding Metal Tables and Chairs From China; Institution of a Five-Year Review Concerning...

    Science.gov (United States)

    2012-10-01

    ... existence and availability of substitute products; and the level of competition among the Domestic Like... is China. (3) The Domestic Like Product is the domestically produced product or products which are... Domestic Like Products consisting of certain folding metal chairs and certain folding metal tables, which...

  16. 76 FR 66036 - Folding Metal Tables and Chairs From the People's Republic of China: Final Results of Antidumping...

    Science.gov (United States)

    2011-10-25

    ... Antidumping Duty Order on Folding Metal Tables and Chairs from the People's Republic of China: Labor Cost... from the People's Republic of China: Labor Cost Conversion,'' dated July 15, 2011 (``Labor Cost... so that the calculated labor costs properly reflect the result of the reported direct labor, indirect...

  17. Bright lights: disclosures from the optical, spectroscopic and chromatographic characterization of a 19th century Portuguese sedan chair

    Directory of Open Access Journals (Sweden)

    Catarina Miguel

    2016-01-01

    Full Text Available The Fundação Ricardo Espírito Santo Silva (FRESS as the mission of defend, train, study, develop and implement Portuguese Fine Arts in Portugal. This paper reflects the process of Conservation-Restoration training, where students apply the most recent analytical techniques to the characterization of artwork towards enabling and supporting conservation intervention. In this study, the materials used to produce a 19th century sedan chair were characterised by optical microscopy, spectroscopic (SEM-EDS, -Raman and FTIR-imaging and chromatographic (HPLC-DAD/MS techniques. The use of natural and synthetic dyes was identified in textiles found inside the chair, including cochineal, brazilwood and fuchsine. Several paint layers with different colours and compounds, such as barite, calcium carbonate, lead white, hematite and Prussian blue, were identified in the external painted wood surface of the chair. The variety of identified materials, interspersed between layers of animal glue, reflects the different interventions that took place on the chair over time, supporting the intervention strategies reported/prescribed for the conservation-restoration procedure.

  18. Neuro-Analogical Gate Tuning of Trajectory Data Fusion for a Mecanum-Wheeled Special Needs Chair

    Science.gov (United States)

    ElSaharty, M. A.; zakzouk, Ezz Eldin

    2017-01-01

    Trajectory tracking of mobile wheeled chairs using internal shaft encoder and inertia measurement unit(IMU), exhibits several complications and accumulated errors in the tracking process due to wheel slippage, offset drift and integration approximations. These errors can be realized when comparing localization results from such sensors with a camera tracking system. In long trajectory tracking, such errors can accumulate and result in significant deviations which make data from these sensors unreliable for tracking. Meanwhile the utilization of an external camera tracking system is not always a feasible solution depending on the implementation environment. This paper presents a novel sensor fusion method that combines the measurements of internal sensors to accurately predict the location of the wheeled chair in an environment. The method introduces a new analogical OR gate structured with tuned parameters using multi-layer feedforward neural network denoted as “Neuro-Analogical Gate” (NAG). The resulting system minimize any deviation error caused by the sensors, thus accurately tracking the wheeled chair location without the requirement of an external camera tracking system. The fusion methodology has been tested with a prototype Mecanum wheel-based chair, and significant improvement over tracking response, error and performance has been observed. PMID:28045973

  19. Local Board Chair Perspectives on Reform in North Carolina: State Decentralization as a Challenge for District Leadership.

    Science.gov (United States)

    Keedy, John L.; Freeman, Eric

    2002-01-01

    Interviews 16 school board chairs in North Carolina to determine their attitudes toward state education reform legislation. Discusses two themes emerging from the interviews: Downsizing the state bureaucracy translates into autonomy and accountability at the local level, but paradoxically boards now lack the organizational buffering previously…

  20. RMB Interest Rates Will Continue to Rise

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    Lehman Brothers say that the recent 0.27 percentage point rise in RMB interest rates is just for starters, and that China will continue to higher RMB interest rates, They forecast a rise up to 6 percent on a oneyear loan by the end of 2005. Liang Hong,chief economist at the Goldman Sachs investment bank, says that although the rise in RMB interest rates may be minimal,

  1. Analysis of repeated measures data

    CERN Document Server

    Islam, M Ataharul

    2017-01-01

    This book presents a broad range of statistical techniques to address emerging needs in the field of repeated measures. It also provides a comprehensive overview of extensions of generalized linear models for the bivariate exponential family of distributions, which represent a new development in analysing repeated measures data. The demand for statistical models for correlated outcomes has grown rapidly recently, mainly due to presence of two types of underlying associations: associations between outcomes, and associations between explanatory variables and outcomes. The book systematically addresses key problems arising in the modelling of repeated measures data, bearing in mind those factors that play a major role in estimating the underlying relationships between covariates and outcome variables for correlated outcome data. In addition, it presents new approaches to addressing current challenges in the field of repeated measures and models based on conditional and joint probabilities. Markov models of first...

  2. Topology of a G-quadruplex DNA formed by C9orf72 hexanucleotide repeats associated with ALS and FTD.

    Science.gov (United States)

    Zhou, Bo; Liu, Changdong; Geng, Yanyan; Zhu, Guang

    2015-11-13

    Abnormal expansions of an intronic hexanucleotide GGGGCC (G4C2) repeat of the C9orf72 gene are the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Previous studies suggested that the C9orf72 hexanucleotide repeat expansion (HRE), either as DNA or the transcribed RNA, can fold into G-quadruplexes with distinct structures. These structural polymorphisms lead to abortive transcripts and contribute to the pathogenesis of ALS and FTD. Using circular dichroism (CD) and nuclear magnetic resonance (NMR) spectroscopy, we analyzed the structures of C9orf72 HRE DNA with various G4C2 repeats. They exhibited diverse G-quadruplex folds in potassium ions. Furthermore, we determined the topology of a G-quadruplex formed by d(G4C2)4. It favors a monomeric fold and forms a chair-type G-quadruplex with a four-layer antiparallel G-tetra core and three edgewise loops, which is distinct from known structures of chair-type G-quadruplexes. Our findings highlight the conformational heterogeneity of C9orf72 HRE DNA, and may lay the necessary structural basis for designing small molecules for the modulation of ALS/FTD pathogenesis.

  3. DOE Chair of Excellence in Environmental Disciplines-Final Technical Report

    Energy Technology Data Exchange (ETDEWEB)

    Kurunganty, Sastry; Loran, Roberto; Roque-Malherbe, Rolando; Hijazi, Yazan; Nieto, Santander; Gomez, Will A.; Duconge, Jose; Cotto, María del C.; Muniz, Carlos; Diaz, Francisco J.; Neira, Carlos F.; Marquez, Francisco; Del Valle, W.; Thommes, M.

    2014-02-19

    The report Massie Chair of Excellence Program at Universidad del Turabo, contract DE-FG02-95EW12610, during the period of 9/29/1995 to 9/29/2011. The initial program aims included development of academic programs in the Environmental Sciences and Engineering, and Research and Development focused initially on environmentally friendly processes and later revised also include: renewable energy and international cooperation. From 1995 -2005, the Program at UT lead the establishment of the new undergraduate program in electrical engineering at the School of Engineering (SoE), worked on requirements to achieve ABET accreditation of the SoE B.S. Mechanical Engineering and B.S. Electrical Engineering programs, mentored junior faculty, taught undergraduate courses in electrical engineering, and revised the electrical engineering curriculum. Engineering undergraduate laboratories were designed and developed. The following research sub-project was developed: Research and development of new perovskite-alumina hydrogen permeable asymmetrical nanostructured membranes for hydrogen purification, and extremely high specific surface area silica materials for hydrogen storage in the form of ammonia, Dr. Rolando Roque-Malherbe Subproject PI, Dr. Santander Nieto and Mr. Will Gómez Research Assistants. In 2006, the Massie Chair of Excellence Program was transferred to the National Nuclear Security Agency, NNSA and DNN. DoE required a revised proposal aligned with the priorities of the Administration. The revised approved program aims included: (1) Research (2) Student Development: promote the development of minority undergraduate and graduate students through research teams, internships, conferences, new courses; and, (3) Support: (a) Research administration and (b) Dissemination through international conferences, the UT Distinguished Lecturer Series in STEM fields and at the annual Universidad del Turabo (UT) Researchers Conference. Research included: Sub-Project 1: Synthesis and

  4. Astronomy from the chair - the application of the Internet in promoting of Astronomy

    Science.gov (United States)

    Tomic, Zoran

    2014-05-01

    Internet and modern communication technologies are an indispensable part of modern life. The use of the Internet makes it possible to enhance the education and expand opportunities for acquiring new knowledge. One example is Astronomy, where today thanks to the Internet, we can control telescopes that are distant from us and listen to lectures from Universities in other countries. "Astronomy from the chair" is the name for a concept where amateur astronomers can deal with astronomy from their homes using the Internet. The concept can be divided into four sections depending on the content being offered: Robotic Observatory, Virtual Observatory, Online astronomy broadcasting and Online courses. Robotic observatory is defined as an astronomical instrument and detection system that enables efficient observation without the need of a person's physical intervention. Virtual Observatory is defined as a collection of databases and software tools that use the Internet as a platform for scientific research. Online astronomy broadcasting is part of concept "Astronomy from the chair" which gives users the opportunity to get directly involved in astronomical observation organized by an amateur astronomer from somewhere in the world. Online courses are groups of sites and organizations that provide the opportunity to amateur astronomers to attend lectures, save and watch video materials from lectures, do homework, communicate with other seminar participants and in that way become familiar with the various areas of Astronomy. This paper discusses a new concept that describes how the Internet can be applied in modern education. In this paper will be described projects that allows a large number of astronomy lovers to do their own research without the need to own a large and expensive set of astronomical equipment (Virtual Telescope from Italy, Observatory "Night Hawk" from Serbia and project "Astronomy from an armchair" at Faculty of Sciences and Mathematics in Nis), to help

  5. Rising food prices and household food security

    African Journals Online (AJOL)

    of rising food prices and coping strategies of 60 female-headed households ... systematic review.8 The rise in food prices will most likely result in a reduction in ... risk of chronic diseases, which was in contrast to lower diet costs associated with ... approach requires diversification into many sources of food as well as building ...

  6. ENTRAINMENT AND EXPANSION CONTROLLED FIREBALL RISE

    Science.gov (United States)

    This paper reports on a detailed analysis of the buoyant rise of fireballs in the earth’s atmosphere. Formulae for the rise velocity and height, and...the density, mass, radius and expansion velocity of the fireball are given. The computation of fireball temperature is discussed in detail; no

  7. Faculty Hiring and Development at BYU: Perspectives of a Recent Hire and Department Chair

    Science.gov (United States)

    Turley, R. Steven

    2002-04-01

    I will present a personal perspective on the transition from an industrial to an academic physicist. For those planning on a similar transition, I will mention several things that were helpful in preparing myself, marketing myself, and adapting to an academic setting. For instance, a significant difference between academic and industrial physics is the responsibility of classroom teaching. Several things that proved particularly useful in improving my own teaching were mentoring teaching partnerships, student evaluations, help in the tenure and promotion process, and programs available from our Faculty Center. From my current perspective as a department chair, I will further discuss mentoring practices I have found helpful with other new faculty. These include such things as inviting mentors to participate with new faculty in development workshops and providing financial and other recognition for participation as a mentor. In addition to developing professional skills, I have found that good mentoring is particularly critical in encouraging new faculty to adapt to departmental culture. Finally, I will discuss ideas I have found helpful in successfully recruiting new faculty. This involves researching, identifying, and actively recruiting faculty we think will build our department. For us, it has not been sufficient to passively rely on responses from applicants to advertisements and word-of-mouth inquiries. Through careful hiring and effective mentoring, we have developed an excellent record of having our faculty being successful in the tenure process.

  8. THE 30-S CHAIR STAND TEST AND HABITUAL MOBILITY PREDICT REHABILITATION NEEDS AFTER ACUTE ADMISSION

    DEFF Research Database (Denmark)

    Hansen Bruun, Inge; Nørgaard, Birgitte; Backer Mogensen, Christian

    2016-01-01

    . The objectives were 1: What risk factors support the 30s-CST identifying elderly with rehabilitation needs? 2: Does the De Morton Mobility Index (DEMMI) add additional predictive value? Methods/Analysis In this prospective cohort study elderly (65+years) admitted to the ED at weekdays with medical complaints...... were included if oriented in time and place, able to sit on a chair and have a 30s-CST–score ≤ 8. Baseline data were collected within the first 48 hours of admission and the 30s-CST again one month after admission. All risk factors are identified in the literature. The 30s-CST is used at community...... were analyzed in logistics regression models. Results: A loss of 39 patients means that 117 were included in the analysis. The baseline predictors for rehabilitation needs were: Female gender: (OR 1.6); using assistive device (OR 4.6); reduced ability to climb a stairway (OR 2.8); no physical activity...

  9. State Space Composition Technique for Intelligent Wheel Chair Adapting to Environment.

    Science.gov (United States)

    Hamagami, Tomoki; Hirata, Hironori

    This paper describes a state space composition technique for the adaptation to environment in the autonomous behavior of intelligent wheel chair (IWC).In the product like IWC with actual sensors, composing state space is difficult problem since environmental information can not be observed sufficiently from restricted sensor inputs.A lot of states observed from same environment position raise the fail of the learning and adaptation with active learning approach.In order to compensate for the effects of the sensor configuration, that is sensor position, angle and precision, a normalization processing of position detector is introduced.In sensor normalization process, IWC scans present environment via range sensors with executing spot-turn, and prepare scan-patterns of each sensor.Then the normalization process adjusts the phase and dynamic range of each pattern to the reference sensor scan-pattern, analyzing phase differences and scale factors of each pattern against reference pattern.Using phase difference and scale factors, automated state space composition is possible.From the simulation experiment with both artificial and real-worlddraft, the automated state space construction is confirmed as a practical approach for pre-processing for environment learning and adaptation.

  10. Chair-Based Exercises for Frail Older People: A Systematic Review

    Directory of Open Access Journals (Sweden)

    Kevin Anthony

    2013-01-01

    Full Text Available Introduction. Frail older people are often unable to undertake high-intensity exercise programmes. Chair-based exercises (CBEs are used as an alternative, for which health benefits are uncertain. Objective. To examine the effects of CBE programmes for frail older people through a systematic review of existing literature. Method. A systematic search was performed for CBE-controlled trials in frail populations aged ≥65 years published between 1990 and February 2011 in electronic databases. Quality was assessed using the Jadad method. Results. The search identified 164 references: with 42 duplicates removed, 122 reviewed, 116 excluded, and 6 analysed. 26 outcome measures were reported measuring 3 domains: mobility and function, cardiorespiratory fitness, mental health. All studies were of low methodological quality (Jadad score ≤2; possible range 0–5. Two studies showed no benefit, and four reported some evidence of benefit in all three domains. No harmful effects were reported; compliance was generally good. Conclusion. The quality of the evidence base for CBEs is low with inconclusive findings to clearly inform practice. A consensus is required on the definition and purpose of CBEs. Large well-designed randomised controlled trials to test the effectiveness of CBE are justified.

  11. Do institutional logics predict interpretation of contract rules at the dental chair-side?

    Science.gov (United States)

    Harris, Rebecca; Brown, Stephen; Holt, Robin; Perkins, Elizabeth

    2014-12-01

    In quasi-markets, contracts find purchasers influencing health care providers, although problems exist where providers use personal bias and heuristics to respond to written agreements, tending towards the moral hazard of opportunism. Previous research on quasi-market contracts typically understands opportunism as fully rational, individual responses selecting maximally efficient outcomes from a set of possibilities. We take a more emotive and collective view of contracting, exploring the influence of institutional logics in relation to the opportunistic behaviour of dentists. Following earlier qualitative work where we identified four institutional logics in English general dental practice, and six dental contract areas where there was scope for opportunism; in 2013 we surveyed 924 dentists to investigate these logics and whether they had predictive purchase over dentists' chair-side behaviour. Factor analysis involving 300 responses identified four logics entwined in (often technical) behaviour: entrepreneurial commercialism, duty to staff and patients, managerialism, public good. Copyright © 2014 The Authors. Published by Elsevier Ltd.. All rights reserved.

  12. Energetic analyses of chair and boat conformations of maleimide substituted cyclohexane derivatives.

    Science.gov (United States)

    Remmert, Sarah; Parish, Carol

    2009-04-30

    An analysis of the conformational preferences of two maleimide substituted cyclohexane derivatives proposed as scaffolds for HIV-1 fusion inhibitors is presented. Hybrid Low Mode-Monte Carlo (1:1) conformational searches using seven different force fields were performed in combination with the GBSA(water) solvent model. Low energy structures identified in this way were subjected to geometry optimization on the B3LYP/6-31G** surface. Solvent effects were included in the quantum calculation using the self-consistent reaction field model for water. Quantum results indicate that the 1,3,5-maleimide functionalized 1,3,5-methyl cyclohexane is more stable in the boat conformation, whereas 1,3,5-maleimide functionalized cyclohexane adopts the expected chair conformation with equatorial arms. None of the force fields studied was able to predict the unexpected preference for the boat conformation of 1,3,5-maleimide functionalized 1,3,5-methyl cyclohexane. Comparison of low energy and experimental structures was also performed.

  13. [Digital smile design and anterior monolithic restorations chair side fabrication with Cerec Cad/Cam system].

    Science.gov (United States)

    Perez-Davidi, M

    2015-10-01

    Digital dentistry and digital smile design are both components of modern dentistry. The combination of the two enables the dentist to simulate the desired outcome, share the mock up with the patient and coordinate his or her expectations with the probable esthetic outcome. In this article a case is presented of anterior restorations performed to improve the smile and esthetics of the patient, combining the digital smile design (by Christian Coachman) and the Avatar Digital smile aide of the Cerec SW4 (sirona Germany) software for designing and the MCxI inlab milling unit for the fabrication. The patients picture was imported into the software and the model of the teeth was super imposed into the 3d picture of the face enabling positioning the incisal edge and midline in the desired place and sharing the virtual demo with the patient. All this procedure was performed after the patient had a mockup session in the mouth done according to the wax up procedure. The mockup can be scanned in the mouth and added as a protocol to the patient's digital models, to be used later in the biogeneric copy option. Using this option the software uses the outline of the mockup as guide lins for the final restoration computerized proposal. It is still an aide tool to be improved and simplified but definitely it is the present and future of chair side prosthodontics.

  14. Evaluating Abdominal and Lower-Back Muscle Activity While Performing Core Exercises on a Stability Ball and a Dynamic Office Chair.

    Science.gov (United States)

    Holmes, Michael W R; De Carvalho, Diana E; Karakolis, Thomas; Callaghan, Jack P

    2015-11-01

    The purpose of this study was to evaluate the ability of a dynamic office chair to activate the core muscles while participants performed exercises sitting on the chair compared to a stability ball. Prolonged sitting has become an accepted part of the modern office. However, epidemiological evidence suggests that sedentary postures are linked to many adverse effects on health. The concept of dynamic or active sitting is intended to promote movement while sitting to reduce the time spent in prolonged, static postures. Sixteen participants performed four pelvic rotation exercises (front-back, side-side, circular, and leg lift) on both a dynamic office chair and a stability ball. Muscle activity from 12 torso muscles were evaluated with surface electromyography. For all exercises, trunk muscle activity on the chair was comparable to that on a stability ball. The right external oblique was the only muscle to produce greater peak activity (p = .019) when using the ball compared to the chair (21.4 ± 14.0 percent maximal voluntary excitations (%MVE) and 14.7 ± 10.8 %MVE for the ball and chair, respectively). The left thoracic erector spinae produced greater average activity (p = .044) on the chair than on the ball. These findings suggest that this dynamic sitting approach could be an effective tool for core muscle activation while promoting movement and exercise while sitting at work. Muscle activations on the dynamic chair are comparable to those on a stability ball, and dynamic office chairs can promote movement and exercise while sitting at work. © 2015, Human Factors and Ergonomics Society.

  15. Limitations on quantum key repeaters.

    Science.gov (United States)

    Bäuml, Stefan; Christandl, Matthias; Horodecki, Karol; Winter, Andreas

    2015-04-23

    A major application of quantum communication is the distribution of entangled particles for use in quantum key distribution. Owing to noise in the communication line, quantum key distribution is, in practice, limited to a distance of a few hundred kilometres, and can only be extended to longer distances by use of a quantum repeater, a device that performs entanglement distillation and quantum teleportation. The existence of noisy entangled states that are undistillable but nevertheless useful for quantum key distribution raises the question of the feasibility of a quantum key repeater, which would work beyond the limits of entanglement distillation, hence possibly tolerating higher noise levels than existing protocols. Here we exhibit fundamental limits on such a device in the form of bounds on the rate at which it may extract secure key. As a consequence, we give examples of states suitable for quantum key distribution but unsuitable for the most general quantum key repeater protocol.

  16. Hysteresis of magnetostructural transitions: Repeatable and non-repeatable processes

    Energy Technology Data Exchange (ETDEWEB)

    Provenzano, Virgil [National Institute of Standards and Technology, Gaithersburg, MD 20899 (United States); Della Torre, Edward; Bennett, Lawrence H. [Department of Electrical and Computer Engineering, The George Washington University, Washington, DC 20052 (United States); ElBidweihy, Hatem, E-mail: Hatem@gwmail.gwu.edu [Department of Electrical and Computer Engineering, The George Washington University, Washington, DC 20052 (United States)

    2014-02-15

    The Gd{sub 5}Ge{sub 2}Si{sub 2} alloy and the off-stoichiometric Ni{sub 50}Mn{sub 35}In{sub 15} Heusler alloy belong to a special class of metallic materials that exhibit first-order magnetostructural transitions near room temperature. The magnetic properties of this class of materials have been extensively studied due to their interesting magnetic behavior and their potential for a number of technological applications such as refrigerants for near-room-temperature magnetic refrigeration. The thermally driven first-order transitions in these materials can be field-induced in the reverse order by applying a strong enough field. The field-induced transitions are typically accompanied by the presence of large magnetic hysteresis, the characteristics of which are a complicated function of temperature, field, and magneto-thermal history. In this study we show that the virgin curve, the major loop, and sequentially measured MH loops are the results of both repeatable and non-repeatable processes, in which the starting magnetostructural state, prior to the cycling of field, plays a major role. Using the Gd{sub 5}Ge{sub 2}Si{sub 2} and Ni{sub 50}Mn{sub 35}In{sub 15} alloys, as model materials, we show that a starting single phase state results in fully repeatable processes and large magnetic hysteresis, whereas a mixed phase starting state results in non-repeatable processes and smaller hysteresis.

  17. The effects of an office ergonomics training and chair intervention on worker knowledge, behavior and musculoskeletal risk.

    Science.gov (United States)

    Robertson, Michelle; Amick, Benjamin C; DeRango, Kelly; Rooney, Ted; Bazzani, Lianna; Harrist, Ron; Moore, Anne

    2009-01-01

    A large-scale field intervention study was undertaken to examine the effects of office ergonomics training coupled with a highly adjustable chair on office workers' knowledge and musculoskeletal risks. Office workers were assigned to one of three study groups: a group receiving the training and adjustable chair (n=96), a training-only group (n=63), and a control group (n=57). The office ergonomics training program was created using an instructional systems design model. A pre/post-training knowledge test was administered to all those who attended the training. Body postures and workstation set-ups were observed before and after the intervention. Perceived control over the physical work environment was higher for both intervention groups as compared to workers in the control group. A significant increase in overall ergonomic knowledge was observed for the intervention groups. Both intervention groups exhibited higher level behavioral translation and had lower musculoskeletal risk than the control group.

  18. Status of the RISING project at GSI

    Energy Technology Data Exchange (ETDEWEB)

    Becker, F.; Banu, A.; Beck, T.; Doornenbal, P.; Geissel, H.; Gerl, J.; Gorska, M.; Grawe, H.; Hellstroem, M.; Kojouharov, I.; Kurz, N.; Lozeva, R.; Mandal, S.; Muralithar, S.; Prokopowicz, W.; Saito, N.; Saito, T.R.; Schaffner, H.; Weick, H.; Wheldon, C.; Winkler, M.; Wollersheim, H.J. [Gesellschaft fuer Schwerionenforschung, Darmstadt (Germany); Bednarczyk, P.; Grebosz, J. [Gesellschaft fuer Schwerionenforschung, Darmstadt (Germany); Jolie, J.; Reiter, P.; Warr, N. [Universitaet zu Koeln, Institut fuer Kernphysik, Koeln (Germany); Buerger, A.; Huebel, H. [Helmholtz-Institut fuer Strahlen- und Kernphysik, Bonn (Germany); Simpson, J. [CCLRC Daresbury Laboratory, Daresbury Warrington (United Kingdom); Bentley, M.A.; Hammond, G. [Keele University, Department of Physics, Keele (United Kingdom); Benzoni, G.; Bracco, A.; Camera, F.; Million, B.; Wieland, O. [INFN, Milano (Italy); Kmiecik, M.; Maj, A.; Meczynski, W.; Styczen, J. [IFJ PAN, Krakow (Poland); Fahlander, C.; Rudolph, D. [IRES, Strasbourg (France)

    2005-09-01

    The FRS-RISING set-up at GSI uses secondary radioactive beams at relativistic energies for nuclear structure studies. At GSI the fragmentation or fission of stable primary beams up to {sup 238}U provide secondary beams with sufficient intensity to perform {gamma}-ray spectroscopy. The RISING set-up is described and results of the first RISING campaign are presented. New experimental methods at relativistic energies are being investigated. Future experiments focus on state-of-the art nuclear structure physics covering exotic nuclei all over the nuclear chart. (orig.)

  19. Arrested Bubble Rise in a Narrow Tube

    Science.gov (United States)

    Lamstaes, Catherine; Eggers, Jens

    2016-06-01

    If a long air bubble is placed inside a vertical tube closed at the top it can rise by displacing the fluid above it. However, Bretherton found that if the tube radius, R, is smaller than a critical value Rc=0.918 ℓ_c , where ℓ_c=√{γ /ρ g} is the capillary length, there is no solution corresponding to steady rise. Experimentally, the bubble rise appears to have stopped altogether. Here we explain this observation by studying the unsteady bubble motion for Rarrested motion.

  20. Speed and Vibration Performance as well as Obstacle Avoidance Performance of Electric Wheel Chair Controlled by Human Eyes Only

    Directory of Open Access Journals (Sweden)

    Kohei Arai

    2014-01-01

    Full Text Available Speed and vibration performance as well as obstacle avoidance performance of the previously proposed Electric Wheel Chair: EWC controlled by human eyes only is conducted. Experimental results show acceptable performances of speed vibration performance as well as obstacle avoidance performance for disabled persons. More importantly, disabled persons are satisfied with the proposed EWC because it works by their eyes only. Without hands and finger, they can control EWC freely.

  1. Putting patients first. A conversation with Benjamin Chu, M.D., the new chair-elect of the AHA.

    Science.gov (United States)

    Weinstock, Matthew

    2011-11-01

    The son of immigrants, Benjamin Chu, M.D., has followed an unusual life path from New York's Chinatown to Southern California, where he is now an executive with Kaiser Foundation Hospitals and Health Plan. Dismayed by the daunting challenges facing health care, the AHA chair-elect became a strong believer that the system can and must change, always keeping the focus firmly on the patient.

  2. Autonomous Control of Eye Based Electric Wheel Chair with Obstacle Avoidance and Shortest Path Findings Based on Dijkstra Algorithm

    Directory of Open Access Journals (Sweden)

    Kohei Arai

    2011-12-01

    Full Text Available Autonomous Eye Based Electric Wheel Chair: EBEWC control system which allows handicap person (user to control their EWC with their eyes only is proposed. Using EBEWC, user can move to anywhere they want on a same floor in a hospital autonomously with obstacle avoidance with visible camera and ultrasonic sensor. User also can control EBEWC by their eyes. The most appropriate route has to be determined with avoiding obstacles and then autonomous real time control has to be done. Such these processing time and autonomous obstacle avoidance together with the most appropriate route determination are important for the proposed EBEWC. All the required performances are evaluated and validated. Obstacles can be avoided using acquired images with forward looking camera. The proposed EBEWC system allows creation of floor layout map that contains obstacles locations in a real time basis. The created and updated maps can be share by the electric wheel chairs on a same floor of a hospital. Experimental data show that the system allows computer input (more than 80 keys almost perfectly and electric wheel chair can be controlled with human eyes-only safely.

  3. Vestibulo-Ocular Responses to Vertical Translation using a Hand-Operated Chair as a Field Measure of Otolith Function

    Science.gov (United States)

    Wood, S. J.; Campbell, D. J.; Reschke, M. F.; Prather, L.; Clement, G.

    2016-01-01

    The translational Vestibulo-Ocular Reflex (tVOR) is an important otolith-mediated response to stabilize gaze during natural locomotion. One goal of this study was to develop a measure of the tVOR using a simple hand-operated chair that provided passive vertical motion. Binocular eye movements were recorded with a tight-fitting video mask in ten healthy subjects. Vertical motion was provided by a modified spring-powered chair (swopper.com) at approximately 2 Hz (+/- 2 cm displacement) to approximate the head motion during walking. Linear acceleration was measured with wireless inertial sensors (Xsens) mounted on the head and torso. Eye movements were recorded while subjects viewed near (0.5m) and far (approximately 4m) targets, and then imagined these targets in darkness. Subjects also provided perceptual estimates of target distances. Consistent with the kinematic properties shown in previous studies, the tVOR gain was greater with near targets, and greater with vision than in darkness. We conclude that this portable chair system can provide a field measure of otolith-ocular function at frequencies sufficient to elicit a robust tVOR.

  4. EAMJ Dec. Repeatability.indd

    African Journals Online (AJOL)

    2008-12-12

    Dec 12, 2008 ... Results:Kappa values for four-week repeatability for the wheeze and asthma questions were 0.61 ... for logistic, cultural and ethical reasons, to use ... individual with baseline forced expiratory volume in .... period is likely to also include the effects of true ... data, the writing of the manuscript or the decision.

  5. Heart Risk Factors Rise Before Menopause

    Science.gov (United States)

    ... https://medlineplus.gov/news/fullstory_160227.html Heart Risk Factors Rise Before Menopause 'Danger zone' for women earlier ... WEDNESDAY, Aug. 3, 2016 (HealthDay News) -- Heart disease risk factors -- such as abnormal cholesterol levels and high blood ...

  6. What If CPI Continues to Rise?

    Institute of Scientific and Technical Information of China (English)

    Cheng Kai

    2011-01-01

    @@ What if the CPI continues to rise? We can wait a few months for new pig supplies which can bring down pork prices, but we have little influence on oil prices.What if oil prices hike to S150/barrel next year? It is worthy of celebration, as Chinese are becoming bankers who at least can accurately estimate the rises in interest rate, no matter which stage the market economy in China is in.

  7. Samuel P. Massie Chair of Excellence In Environmental Disciplines: Hampton University 1994-2010 Year Report

    Energy Technology Data Exchange (ETDEWEB)

    Adeyiga, Adeyinka A. [Hampton Univ., Hampton, VA (United States). School of Engineering and Technology

    2014-12-17

    The establishment of the DOE-EM Dr. Samuel P. Massie Chair of Excellence provides an excellent opportunity for Hampton University to be involved in key environmental issues in the 21st Century. The main areas of focus are on: 1. Coal gasification with respect to pollution prevention and reduction. 2. Solid waste treatment through bioremediation technology and 3. Industrial wastewater treatment Synthesizing ion catalysts suitable for use in slurry bubble column reaction was carried out. Construction of an autoclave continuous stirred tank reactor has been completed. At the initial stage of the development of this program, work was conducted in the area of formic acid recovery from waste streams, which yielded useful results. We also succeeded in the removal of priority metal ions such as cadmium, chromium, copper, lead, mercury, nickel, silver, thallium, zinc, etc., from industrial and municipal wastewater by using natural wastes. The process uses tree leaves to adsorb the metal ions in the wastewater. The ultimate goal is to develop inexpensive, highly available, effective metal ion adsorbents from natural wastes as an alternative to existing commercial adsorbents, and also to explain the possible adsorption mechanism that is taking place. This technology uses natural wastes to eliminate other wastes. Obviously, there are several advantages: (1) the negative impact on environment is eliminated, (2) the complicated regeneration step is not needed, and (3) the procedure saves money and energy. Twelve different types of leaves have been tested with lead, zinc, and nickel. The study mechanism showed that the leaf tannin is an active ingredient in the adsorption of metal ions. The ion-exchange mechanism controlled the adsorption process.

  8. Premier Wen Jiabao Chaired a State Council Executive Meeting to Review and Deploy the Program to Further Implement the Restructuring and Reinvigoration Plan for Key Industries

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    @@ Premier Wen Jiabao chaired a State Council executive meeting to review and deploy the program to further implement the restructuring and reinvigoration plan for key industries on February 24th,2010.

  9. HiRISE: The People's Camera

    Science.gov (United States)

    McEwen, A. S.; Eliason, E.; Gulick, V. C.; Spinoza, Y.; Beyer, R. A.; HiRISE Team

    2010-12-01

    The High Resolution Imaging Science Experiment (HiRISE) camera, orbiting Mars since 2006 on the Mars Reconnaissance Orbiter (MRO), has returned more than 17,000 large images with scales as small as 25 cm/pixel. From it’s beginning, the HiRISE team has followed “The People’s Camera” concept, with rapid release of useful images, explanations, and tools, and facilitating public image suggestions. The camera includes 14 CCDs, each read out into 2 data channels, so compressed images are returned from MRO as 28 long (up to 120,000 line) images that are 1024 pixels wide (or binned 2x2 to 512 pixels, etc.). This raw data is very difficult to use, especially for the public. At the HiRISE operations center the raw data are calibrated and processed into a series of B&W and color products, including browse images and JPEG2000-compressed images and tools to make it easy for everyone to explore these enormous images (see http://hirise.lpl.arizona.edu/). Automated pipelines do all of this processing, so we can keep up with the high data rate; images go directly to the format of the Planetary Data System (PDS). After students visually check each image product for errors, they are fully released just 1 month after receipt; captioned images (written by science team members) may be released sooner. These processed HiRISE images have been incorporated into tools such as Google Mars and World Wide Telescope for even greater accessibility. 51 Digital Terrain Models derived from HiRISE stereo pairs have been released, resulting in some spectacular flyover movies produced by members of the public and viewed up to 50,000 times according to YouTube. Public targeting began in 2007 via NASA Quest (http://marsoweb.nas.nasa.gov/HiRISE/quest/) and more than 200 images have been acquired, mostly by students and educators. At the beginning of 2010 we released HiWish (http://www.uahirise.org/hiwish/), opening HiRISE targeting to anyone in the world with Internet access, and already more

  10. Clinical evaluation of the ability of a proprietary scoliosis traction chair to de-rotate the spine: 6-month results of Cobb angle and rotational measurements

    Directory of Open Access Journals (Sweden)

    Clayton J. Stitzel

    2014-10-01

    Full Text Available The aim of this study was to investigate the immediate and 6-month effects of a scoliosis traction chair on scoliosis rotation and Cobb angle. The scoliosis traction chair has been used clinically for 10 years and has been part of previous studies, but has not been the focus of any previous study. Our goal was to test the scoliosis traction chair’s ability to de-rotate the spine to create scoliosis correction. Fifteen patient files were retrospectively selected for study. Patients were radiographically studied in a proprietary traction chair to evaluate impact on Cobb angle and apical vertebral rotation. Six-month follow-up results were recorded. Six-month results showed an average overall Cobb angle increase of about 7°. Patients with in-chair apical de-rotation showed 9° of Cobb angle improvement, while those with increased in-chair apical rotation showed an average 16° progression. Scoliotic curves whose apical rotation worsened on stress radiography showed deterioration of the curve at 6 months. Those with improved apical rotation showed Cobb angle corrections at 6 months. Since progression of scoliotic curvatures was observed in our cohort of patients after 6 months of home and clinical use, it is imperative that further studies attempt to qualify which patients and scoliosis curve patterns are best suited for the scoliosis traction chair.

  11. Directionality switchable gain stabilized linear repeater

    Science.gov (United States)

    Ota, Takayuki; Ohmachi, Tadashi; Aida, Kazuo

    2004-10-01

    We propose a new approach to realize a bidirectional linear repeater suitable for future optical internet networks and fault location in repeater chain with OTDR. The proposed approach is the linear repeater of simple configuration whose directionality is rearranged dynamically by electrical control signal. The repeater is composed of a magneto-optical switch, a circulator, a dynamically gain stabilized unidirectional EDFA, and control circuits. The repeater directionality is rearranged as fast as 0.1ms by an electrical control pulse. It is experimentally confirmed that OTDR with the directionality switchable repeater is feasible for repeater chain. The detailed design and performance of the repeater are also discussed, including the multi-pass interference (MPI) which may arise in the proposed repeater, the effect of the MPI on SNR degradation of the repeater chain and the feed-forward EDFA gain control circuit.

  12. Measurement-based quantum repeaters

    CERN Document Server

    Zwerger, M; Briegel, H J

    2012-01-01

    We introduce measurement-based quantum repeaters, where small-scale measurement-based quantum processors are used to perform entanglement purification and entanglement swapping in a long-range quantum communication protocol. In the scheme, pre-prepared entangled states stored at intermediate repeater stations are coupled with incoming photons by simple Bell-measurements, without the need of performing additional quantum gates or measurements. We show how to construct the required resource states, and how to minimize their size. We analyze the performance of the scheme under noise and imperfections, with focus on small-scale implementations involving entangled states of few qubits. We find measurement-based purification protocols with significantly improved noise thresholds. Furthermore we show that already resource states of small size suffice to significantly increase the maximal communication distance. We also discuss possible advantages of our scheme for different set-ups.

  13. A Repeating Fast Radio Burst

    CERN Document Server

    Spitler, L G; Hessels, J W T; Bogdanov, S; Brazier, A; Camilo, F; Chatterjee, S; Cordes, J M; Crawford, F; Deneva, J; Ferdman, R D; Freire, P C C; Kaspi, V M; Lazarus, P; Lynch, R; Madsen, E C; McLaughlin, M A; Patel, C; Ransom, S M; Seymour, A; Stairs, I H; Stappers, B W; van Leeuwen, J; Zhu, W W

    2016-01-01

    Fast Radio Bursts are millisecond-duration astronomical radio pulses of unknown physical origin that appear to come from extragalactic distances. Previous follow-up observations have failed to find additional bursts at the same dispersion measures (i.e. integrated column density of free electrons between source and telescope) and sky position as the original detections. The apparent non-repeating nature of the fast radio bursts has led several authors to hypothesise that they originate in cataclysmic astrophysical events. Here we report the detection of ten additional bursts from the direction of FRB121102, using the 305-m Arecibo telescope. These new bursts have dispersion measures and sky positions consistent with the original burst. This unambiguously identifies FRB121102 as repeating and demonstrates that its source survives the energetic events that cause the bursts. Additionally, the bursts from FRB121102 show a wide range of spectral shapes that appear to be predominantly intrinsic to the source and wh...

  14. Repeatability of Harris Corner Detector

    Institute of Scientific and Technical Information of China (English)

    HU Lili

    2003-01-01

    Interest point detectors are commonly employed to reduce the amount of data to be processed. The ideal interest point detector would robustly select those features which are most appropriate or salient for the application and data at hand. This paper shows that interest points are geometrically stable under different transformations.This property makes interest points very successful in the context of image matching. To measure this property quantatively, we introduce a evaluation criterion: repeatability rate.

  15. Determination of Temperature Rise and Temperature Differentials of CEMII/B-V Cement for 20MPa Mass Concrete using Adiabatic Temperature Rise Data

    Science.gov (United States)

    Chee Siang, GO

    2017-07-01

    Experimental test was carried out to determine the temperature rise characteristics of Portland-Fly-Ash Cement (CEM II/B-V, 42.5N) of Blaine fineness 418.6m2/kg and 444.6m2/kg respectively for 20MPa mass concrete under adiabatic condition. The estimation on adiabatic temperature rise by way of CIRIA C660 method (Construction Industry Research & Information Information) was adopted to verify and validate the hot-box test results by simulating the heat generation curve of the concrete under semi-adiabatic condition. Test result found that Portland fly-ash cement has exhibited decrease in the peak value of temperature rise and maximum temperature rise rate. The result showed that the temperature development and distribution profile, which is directly contributed from the heat of hydration of cement with time, is affected by the insulation, initial placing temperature, geometry and size of concrete mass. The mock up data showing the measured temperature differential is significantly lower than the technical specifications 20°C temperature differential requirement and the 27.7°C limiting temperature differential for granite aggregate concrete as stipulated in BS8110-2: 1985. The concrete strength test result revealed that the 28 days cubes compressive strength was above the stipulated 20MPa characteristic strength at 90 days. The test demonstrated that with proper concrete mix design, the use of Portland flyash cement, combination of chilled water and flake ice, and good insulation is effective in reducing peak temperature rise, temperature differential, and lower adiabatic temperature rise for mass concrete pours. As far as the determined adiabatic temperature rise result was concern, the established result could be inferred for in-situ thermal properties of 20MPa mass concrete application, as the result could be repeatable on account of similar type of constituent materials and concrete mix design adopted for permanent works at project site.

  16. Six decades of the chair of Internal Medicine at the Medical Faculty in Skopje.

    Science.gov (United States)

    Chakalaroski, K

    2013-01-01

    The chair of internal medicine in Republic of Macedonia was created in 1947. The Department of Internal Medicine (CIM) is the most numerous at Skopje's medical faculty (currently 56 members). According to the archive material from the first session of the Scientific Teaching Council of the Faculty of Medicine (17.03.1947), Mr Mario Krmpotic (Professor of Internal Medicine) was proposed as the first Director of the Internal Clinic (1947). For reasons unknown, Mr Krmpotic never came to Skopje to accept the post. As a consequence of this fact, the real founder of the CIM was the Russian Professor Alexandar Ignjatovski (1875-1955). Mr Ignjatovski was elected as the first Director of the Clinic for Internal Medicine in 1948 for a period of 4 years (1948-1952). At the same time, he was the first Chief of the CIM in Skopje (Macedonia). Dr D. Arsov was elected as the first Assistant Professor of Medicine in 1947, and second (and last) Director of the Clinic for Internal Medicine (1952-1974). For the same period (22 years) he was Head of the CIM. Dr D. Arsov sequentially and successively became first associated and then ordinary professor of medicine in the years 1951 and 1958. The regular activities of the CIM are as follows: 1) Undergraduate education for students (Clinical Investigation, Internal Medicine, Clinical Pharmacy) in general medicine, dentistry, geriatrics, urgent and family medicine (ECKTS); Undergraduate educationfor nurses, speech therapists, physiotherapists, radiologists (high /three year/ nurses School, ECKTS); 2) Postgraduate education (candidates for specialisation in internal medicine, infectology, anaesthesiology, neurology and surgery; 3) Continual medical education (a traditional morning scientific meeting on Thursdays, 08 h; weekly meetings of all internal medicine subspecialists); Scientific meetings, symposiums, congresses of former internal medicine associations (cardiology, pulmoallergology, gastroenterology, nephrology, haematology

  17. Beam Induced Pressure Rise at RHIC

    CERN Document Server

    Zhang, S Y; Bai, Mei; Blaskiewicz, Michael; Cameron, Peter; Drees, Angelika; Fischer, Wolfram; Gullotta, Justin; He, Ping; Hseuh Hsiao Chaun; Huang, Haixin; Iriso, Ubaldo; Lee, Roger C; Litvinenko, Vladimir N; MacKay, William W; Nicoletti, Tony; Oerter, Brian; Peggs, Steve; Pilat, Fulvia Caterina; Ptitsyn, Vadim; Roser, Thomas; Satogata, Todd; Smart, Loralie; Snydstrup, Louis; Thieberger, Peter; Trbojevic, Dejan; Wang, Lanfa; Wei, Jie; Zeno, Keith

    2005-01-01

    Beam induced pressure rise in RHIC warm sections is currently one of the machine intensity and luminosity limits. This pressure rise is mainly due to electron cloud effects. The RHIC warm section electron cloud is associated with longer bunch spacings compared with other machines, and is distributed non-uniformly around the ring. In addition to the countermeasures for normal electron cloud, such as the NEG coated pipe, solenoids, beam scrubbing, bunch gaps, and larger bunch spacing, other studies and beam tests toward the understanding and counteracting RHIC warm electron cloud are of interest. These include the ion desorption studies and the test of anti-grazing ridges. For high bunch intensities and the shortest bunch spacings, pressure rises at certain locations in the cryogenic region have been observed during the past two runs. Beam studies are planned for the current 2005 run and the results will be reported.

  18. Visualizing Sea Level Rise with Augmented Reality

    Science.gov (United States)

    Kintisch, E. S.

    2013-12-01

    Looking Glass is an application on the iPhone that visualizes in 3-D future scenarios of sea level rise, overlaid on live camera imagery in situ. Using a technology known as augmented reality, the app allows a layperson user to explore various scenarios of sea level rise using a visual interface. Then the user can see, in an immersive, dynamic way, how those scenarios would affect a real place. The first part of the experience activates users' cognitive, quantitative thinking process, teaching them how global sea level rise, tides and storm surge contribute to flooding; the second allows an emotional response to a striking visual depiction of possible future catastrophe. This project represents a partnership between a science journalist, MIT, and the Rhode Island School of Design, and the talk will touch on lessons this projects provides on structuring and executing such multidisciplinary efforts on future design projects.

  19. Rising optical afterglows seen by TAROT

    CERN Document Server

    Gendre, B; Stratta, G; Preger, B; Piro, L; Pelangeon, A; Galli, A; Cutini, S; Corsi, A; Boër, M; Atteia, J L

    2008-01-01

    We present the multi-wavelength study of those gamma-ray bursts observed by TAROT. These events are characterized by the presence at early time of a rising in their optical light curves lasting a few hundred of seconds. In one case (GRB 060904B), a flare occurs at similar time in the X-ray band, while in the other cases the X-ray light curves appear smooth during the optical rise. We investigate the possible nature of this behavior and conclude th at a multi-component emission is mandatory to explain the optical-to-X-ray afterglow.

  20. Rising incidence of Merkel cell carcinoma

    DEFF Research Database (Denmark)

    Lyhne, Dorte; Lock-Andersen, Jørgen; Dahlstrøm, Karin

    2011-01-01

    Abstract Merkel cell carcinoma (MCC) is a rare, aggressive, skin cancer of obscure histogenesis, the incidence of which is rising. There is no consensus on the optimal treatment. Our aim was to evaluate the staging, investigation, treatment, and follow-up of MCC in eastern Denmark, and to investi......Abstract Merkel cell carcinoma (MCC) is a rare, aggressive, skin cancer of obscure histogenesis, the incidence of which is rising. There is no consensus on the optimal treatment. Our aim was to evaluate the staging, investigation, treatment, and follow-up of MCC in eastern Denmark...

  1. Repeatability and consistency of individual behaviour in juvenile and adult Eurasian harvest mice

    Science.gov (United States)

    Schuster, Andrea C.; Carl, Teresa; Foerster, Katharina

    2017-04-01

    Knowledge on animal personality has provided new insights into evolutionary biology and animal ecology, as behavioural types have been shown to affect fitness. Animal personality is characterized by repeatable and consistent between-individual behavioural differences throughout time and across different situations. Behavioural repeatability within life history stages and consistency between life history stages should be checked for the independence of sex and age, as recent data have shown that males and females in some species may differ in the repeatability of behavioural traits, as well as in their consistency. We measured the repeatability and consistency of three behavioural and one cognitive traits in juvenile and adult Eurasian harvest mice ( Micromys minutus). We found that exploration, activity and boldness were repeatable in juveniles and adults. Spatial recognition measured in a Y Maze was only repeatable in adult mice. Exploration, activity and boldness were consistent before and after maturation, as well as before and after first sexual contact. Data on spatial recognition provided little evidence for consistency. Further, we found some evidence for a litter effect on behaviours by comparing different linear mixed models. We concluded that harvest mice express animal personality traits as behaviours were repeatable across sexes and consistent across life history stages. The tested cognitive trait showed low repeatability and was less consistent across life history stages. Given the rising interest in individual variation in cognitive performance, and in its relationship to animal personality, we suggest that it is important to gather more data on the repeatability and consistency of cognitive traits.

  2. Origin and fate of repeats in bacteria.

    Science.gov (United States)

    Achaz, G; Rocha, E P C; Netter, P; Coissac, E

    2002-07-01

    We investigated 53 complete bacterial chromosomes for intrachromosomal repeats. In previous studies on eukaryote chromosomes, we proposed a model for the dynamics of repeats based on the continuous genesis of tandem repeats, followed by an active process of high deletion rate, counteracted by rearrangement events that may prevent the repeats from being deleted. The present study of long repeats in the genomes of Bacteria and Archaea suggests that our model of interspersed repeats dynamics may apply to them. Thus the duplication process might be a consequence of very ancient mechanisms shared by all three domains. Moreover, we show that there is a strong negative correlation between nucleotide composition bias and the repeat density of genomes. We hypothesise that in highly biased genomes, non-duplicated small repeats arise more frequently by random effects and are used as primers for duplication mechanisms, leading to a higher density of large repeats.

  3. Changes in the quality of life in severely disabled people following provision of powered indoor/outdoor chairs

    OpenAIRE

    Davies, A; De Souza, LH; Frank, AO

    2003-01-01

    Purpose:To determine the benefits for patients who received an Electric Powered Indoor/outdoor Chair (EPIOC) and to quantify their perceived changes to their quality of life. Method: Community-based cohort study of all patients provided with an EPIOC over 4 months; and followed up about 3 months later in a community served by a regional wheelchair service in North West London (population about 3.1 million) using the EuroQol EQ-5D with visual analogue scales for each of the 5 dimensions o...

  4. Influence of trunk muscle co-contraction on spinal curvature during sitting reclining against the backrest of a chair.

    Science.gov (United States)

    Watanabe, S; Eguchi, A; Kobara, K; Ishida, H

    2008-01-01

    Today, many office workers frequently adopt a relaxed or slumped sitting posture for many hours, and often people tend to spend their leisure time reclining against the backrest of a chair while sitting for a long time, as when watching television. While sitting, the pelvis rotates backwardly, and lumbar lordosis is flattened. Simultaneously, the load on the intervertebral discs and spine increases. Sitting in a slumped position is known to increase disc pressure even more, and to aggravate chronic low back pain (CLBP). Therefore, it is very important to teach workers and often people about the correct sitting posture. In addition, it has been recognized that co-contraction of the deep spine-stabilizing muscles enhances lumbar segmental stability and the sacro-iliac joint. However, little is known about the influence of co-contraction of the trunk deep muscles on spinal curvature during sitting reclining against the backrest of a chair. The purpose of this study was to compare the EMG (electromyographic) activity of the trunk muscles during slump sitting with that during co-contraction and to investigate how this cocontraction influences spinal curvature. Ten healthy male volunteers (20.8 +/- 0.8 years old) without CLBP participated in the study. Bipolar surface electrodes were attached to the rectus abdominis, the obliquus externus abdominis, the obliquus internus abdominis, the lower back extensor muscles (L3) and the multifidus on the right side. The EMG signals were continuously recorded during slump sitting and co-contraction of the trunk muscles, reclining against the backrest of chair. They were amplified, band-pass filtered, digitized and stored by a data acquisition system. The average muscle activity values over the five-second sample for each sitting posture were normalized to maximal voluntary contractions (%MVC). While the subjects performed both sitting postures, the curvature of the spine was measured using a new skin-surface and hand-held device

  5. An update from the Chair of the students and new professionals Group of the International Society of Biometeorology

    Science.gov (United States)

    Vanos, Jennifer

    2017-09-01

    The Students and New Professionals Group of the International Society of Biometeorology is composed of approximately 68 members who are either within 5 years from completing graduate studies or under 35 years of age. The group is represented by 21 countries from around the world and a variety of disciplinary perspectives working within the area of biometeorology. Here, an update from the Chair of the Students and New Professionals Group of the International Society of Biometeorology is provided based on accomplishments and new progress from 2014 to 2017 in advance of the ISB's 60th Anniversary.

  6. Effets du rationnement alimentaire chez le coq de type chair. Interactions avec la duree quotidienne d'eclairement

    OpenAIRE

    De REVIERS, M.

    1990-01-01

    La tendance des coqs reproducteurs de type chair à prendre trop de poids à l’âge adulte doit être corrigée par le rationnement de l’aliment pour qu’ils puissent exprimer leur potentiel de reproduction et le faire dans des conditions économiques. Appliqué pendant la seule période adulte, ce rationnement ne permet que difficilement de corriger les effets d’un régime trop libéral pendant la croissance car il peut provoquer une diminution rapide et importante de la production des spermatozoïdes. ...

  7. A Pilot Randomized Controlled Trial of the Effects of Chair Yoga on Pain and Physical Function Among Community-Dwelling Older Adults With Lower Extremity Osteoarthritis.

    Science.gov (United States)

    Park, Juyoung; McCaffrey, Ruth; Newman, David; Liehr, Patricia; Ouslander, Joseph G

    2017-03-01

    To determine effects of Sit 'N' Fit Chair Yoga, compared to a Health Education program (HEP), on pain and physical function in older adults with lower extremity osteoarthritis (OA) who could not participate in standing exercise. Two-arm randomized controlled trial. One HUD senior housing facility and one day senior center in south Florida. Community-dwelling older adults (N = 131) were randomly assigned to chair yoga (n = 66) or HEP (n = 65). Thirteen dropped after assignment but prior to the intervention; six dropped during the intervention; 106 of 112 completed at least 12 of 16 sessions (95% retention rate). Participants attended either chair yoga or HEP. Both interventions consisted of twice-weekly 45-minute sessions for 8 weeks. Primary: pain, pain interference; secondary: balance, gait speed, fatigue, functional ability measured at baseline, after 4 weeks of intervention, at the end of the 8-week intervention, and post-intervention (1 and 3 months). The chair yoga group showed greater reduction in pain interference during the intervention (P = .01), sustained through 3 months (P = .022). WOMAC pain (P = .048), gait speed (P = .024), and fatigue (P = .037) were improved in the yoga group during the intervention (P = .048) but improvements were not sustained post intervention. Chair yoga had no effect on balance. An 8-week chair yoga program was associated with reduction in pain, pain interference, and fatigue, and improvement in gait speed, but only the effects on pain interference were sustained 3 months post intervention. Chair yoga should be further explored as a nonpharmacologic intervention for older people with OA in the lower extremities. ClinicalTrials.gov: NCT02113410. © 2016, Copyright the Authors Journal compilation © 2016, The American Geriatrics Society.

  8. Improving repeatability by improving quality

    Energy Technology Data Exchange (ETDEWEB)

    Ronen, Shuki; Ackers, Mark; Schlumberger, Geco-Prakla; Brink, Mundy

    1998-12-31

    Time lapse (4-D) seismic is a promising tool for reservoir characterization and monitoring. The method is apparently simple: to acquire data repeatedly over the same reservoir, process and interpret the data sets, then changes between the data sets indicate changes in the reservoir. A problem with time lapse seismic data is that reservoirs are a relatively small part of the earth and important reservoir changes may cause very small differences to the time lapse data. The challenge is to acquire and process economical time lapse data such that reservoir changes can be detected above the noise of varying acquisition and environment. 7 refs., 9 figs.

  9. Coordinated hybrid automatic repeat request

    KAUST Repository

    Makki, Behrooz

    2014-11-01

    We develop a coordinated hybrid automatic repeat request (HARQ) approach. With the proposed scheme, if a user message is correctly decoded in the first HARQ rounds, its spectrum is allocated to other users, to improve the network outage probability and the users\\' fairness. The results, which are obtained for single- and multiple-antenna setups, demonstrate the efficiency of the proposed approach in different conditions. For instance, with a maximum of M retransmissions and single transmit/receive antennas, the diversity gain of a user increases from M to (J+1)(M-1)+1 where J is the number of users helping that user.

  10. China's Rise vs. International Order Evolution

    Institute of Scientific and Technical Information of China (English)

    Cui Liru

    2008-01-01

    @@ A heated debate over the rise of China has been going on unabated in the international community for nearly two decades. However, with the elapse of time, the initial divergence of views in the mainstream opinion has gradually diminished and the gap in China policy among nations has likewise narrowed down. Instead, reason and a realistic approach have eventually taken center stage.

  11. The Rise of the Developing World

    Institute of Scientific and Technical Information of China (English)

    Su Jingxiang

    2007-01-01

    In the paper, the formation and causes of world economic system and order are deeply analyzed. Professor Su quotes some experts on international relations to prove his arguments. In the last part of his paper, Dr. Su spends a lot to expound the world economic system and the rise of the developing world in the new century.

  12. Diagnostics From Three Rising Submillimeter Bursts

    CERN Document Server

    Zhou, Ai-Hua; Wang, Xin-Dong

    2015-01-01

    In the paper we investigate three novel rising submillimeter (THz) bursts occurred sequentially in a super-Active Region NOAA 10486. The average rising rate of the flux density above 200 GHz is only 20 sfu/GHz (corresponding spectral index $\\alpha$ of 1.6) for the THz spectral components of 2003 October 28 and November 4 bursts, while it can attain values of 235 sfu/GHz ($\\alpha$=4.8) for 2003 November 2 burst. The steeply rising THz spectrum can be produced by a population of high relativistic electrons with a low-energy cutoff of 1 MeV , while it only requires a low-energy cutoff of 30 keV for the two slowly rising THz bursts, via gyrosynchrotron (GS) radiation based on our numerical simulations of burst spectra in the magnetic dipole field case. The electron density variation is much larger in the THz source than that in microwave (MW) one. It is interesting that the THz source radius decreased by 20--50$\\%$ during the decay phase for the three events, but the MW one increased by 28$\\%$ for the 2003 Novemb...

  13. Rising interest rates, bank loans, and deposits

    OpenAIRE

    Hesna Genay; Darrin Halcomb

    2004-01-01

    The authors show how the relationships between interest rate changes, deposit growth rates, and loan growth rates have changed in the last ten years, discuss some possible reasons, and assess the likely impact of rising interest rates on loans and deposits going forward.

  14. Agriculture waste and rising CO2

    Science.gov (United States)

    Currently, there are many uncertainties concerning agriculture’s role in global environmental change including the effects of rising atmospheric CO2 concentration. A viable and stable world food supply depends on productive agricultural systems, but environmental concerns within agriculture have to...

  15. Rising Tides: Faculty Expectations of Library Websites

    Science.gov (United States)

    Nicol, Erica Carlson; O'English, Mark

    2012-01-01

    Looking at 2003-2009 LibQUAL+ responses at research-oriented universities in the United States, faculty library users report a significant and consistent rise in desires and expectations for library-provided online tools and websites, even as student user groups show declining or leveling expectations. While faculty, like students, also report…

  16. Sea level rise: A literature survey

    NARCIS (Netherlands)

    Oude Essink, G.H.P.

    1992-01-01

    In order to assess the impact of sea level rise on Water Management, it is useful to understand the mechanisrns that determine the level of the sea. In this study, a literature survey is executed to analyze these mechanisms. Climate plays a centra! role in these mechanisms, Climate mainly changes du

  17. Relative Deprivation, Rising Expectations, and Black Militancy

    Science.gov (United States)

    Abeles, Ronald P.

    1976-01-01

    Investigates the role of relative deprivation (RD) and rising expectations (RE) as mediating variables between social structure and black militancy through secondary analyses of survey data of blacks living in Cleveland and Miami in the late 1960s. Alternative explanations and implications derived from the present data and the theories for the…

  18. The Rise of the Digital Public Library

    Science.gov (United States)

    McKendrick, Joseph

    2012-01-01

    There is a growing shift to digital offerings among public libraries. Libraries increasingly are fulfilling roles as technology hubs for their communities, with high demand for technology and career development training resources. Ebooks and other digital materials are on the rise, while print is being scaled back. More libraries are turning to…

  19. States' Budgets Reflect Rising Tax Collections

    Science.gov (United States)

    Hoff, David J.

    2005-01-01

    Many state budgets are reaping the benefits of tax revenues that are rising faster than at any time since the economic slowdown ended. Overall tax collections by states rose by 11.7 percent in the first quarter of 2005, giving the legislatures extra cash to shore up school aid, increase teacher pay, and finance new initiatives such as full-day…

  20. Calculation of Temperature Rise in Calorimetry.

    Science.gov (United States)

    Canagaratna, Sebastian G.; Witt, Jerry

    1988-01-01

    Gives a simple but fuller account of the basis for accurately calculating temperature rise in calorimetry. Points out some misconceptions regarding these calculations. Describes two basic methods, the extrapolation to zero time and the equal area method. Discusses the theoretical basis of each and their underlying assumptions. (CW)

  1. The Rise of the Digital Public Library

    Science.gov (United States)

    McKendrick, Joseph

    2012-01-01

    There is a growing shift to digital offerings among public libraries. Libraries increasingly are fulfilling roles as technology hubs for their communities, with high demand for technology and career development training resources. Ebooks and other digital materials are on the rise, while print is being scaled back. More libraries are turning to…

  2. Updating Maryland's sea-level rise projections

    Science.gov (United States)

    Boesch, Donald F.; Atkinson, Larry P.; Boicourt, William C.; Boon, John D.; Cahoon, Donald R.; Dalrymple, Robert A.; Ezer, Tal; Horton, Benjamin P.; Johnson, Zoe P.; Kopp, Robert E.; Li, Ming; Moss, Richard H.; Parris, Adam; Sommerfield, Christopher K.

    2013-01-01

    With its 3,100 miles of tidal shoreline and low-lying rural and urban lands, “The Free State” is one of the most vulnerable to sea-level rise. Historically, Marylanders have long had to contend with rising water levels along its Chesapeake Bay and Atlantic Ocean and coastal bay shores. Shorelines eroded and low-relief lands and islands, some previously inhabited, were inundated. Prior to the 20th century, this was largely due to the slow sinking of the land since Earth’s crust is still adjusting to the melting of large masses of ice following the last glacial period. Over the 20th century, however, the rate of rise of the average level of tidal waters with respect to land, or relative sea-level rise, has increased, at least partially as a result of global warming. Moreover, the scientific evidence is compelling that Earth’s climate will continue to warm and its oceans will rise even more rapidly. Recognizing the scientific consensus around global climate change, the contribution of human activities to it, and the vulnerability of Maryland’s people, property, public investments, and natural resources, Governor Martin O’Malley established the Maryland Commission on Climate Change on April 20, 2007. The Commission produced a Plan of Action that included a comprehensive climate change impact assessment, a greenhouse gas reduction strategy, and strategies for reducing Maryland’s vulnerability to climate change. The Plan has led to landmark legislation to reduce the state’s greenhouse gas emissions and a variety of state policies designed to reduce energy consumption and promote adaptation to climate change.

  3. Crowding by a repeating pattern.

    Science.gov (United States)

    Rosen, Sarah; Pelli, Denis G

    2015-01-01

    Theinability to recognize a peripheral target among flankers is called crowding. For a foveal target, crowding can be distinguished from overlap masking by its sparing of detection, linear scaling with eccentricity, and invariance with target size.Crowding depends on the proximity and similarity of the flankers to the target. Flankers that are far from or dissimilar to the target do not crowd it. On a gray page, text whose neighboring letters have different colors, alternately black and white, has enough dissimilarity that it might escape crowding. Since reading speed is normally limited by crowding, escape from crowding should allow faster reading. Yet reading speed is unchanged (Chung & Mansfield, 2009). Why? A recent vernier study found that using alternating-color flankers produces strong crowding (Manassi, Sayim, & Herzog, 2012). Might that effect occur with letters and reading? Critical spacing is the minimum center-to-center target-flanker spacing needed to correctly identify the target. We measure it for a target letter surrounded by several equidistant flanker letters of the same polarity, opposite polarity, or mixed polarity: alternately white and black. We find strong crowding in the alternating condition, even though each flanker letter is beyond its own critical spacing (as measured in a separate condition). Thus a periodic repeating pattern can produce crowding even when the individual elements do not. Further, in all conditions we find that, once a periodic pattern repeats (two cycles), further repetition does not affect critical spacing of the innermost flanker.

  4. Automatization and familiarity in repeated checking

    NARCIS (Netherlands)

    Dek, Eliane C P; van den Hout, Marcel A.; Giele, Catharina L.; Engelhard, Iris M.

    2014-01-01

    Repeated checking paradoxically increases memory uncertainty. This study investigated the underlying mechanism of this effect. We hypothesized that as a result of repeated checking, familiarity with stimuli increases, and automatization of the checking procedure occurs, which should result in decrea

  5. CDC Vital Signs: Preventing Repeat Teen Births

    Science.gov (United States)

    ... file Error processing SSI file Preventing Repeat Teen Births Recommend on Facebook Tweet Share Compartir On this ... Too many teens, ages 15–19, have repeat births. Nearly 1 in 5 births to teens, ages ...

  6. Expanded complexity of unstable repeat diseases

    OpenAIRE

    Polak, Urszula; McIvor, Elizabeth; Dent, Sharon Y.R.; Wells, Robert D.; Napierala, Marek.

    2012-01-01

    Unstable Repeat Diseases (URDs) share a common mutational phenomenon of changes in the copy number of short, tandemly repeated DNA sequences. More than 20 human neurological diseases are caused by instability, predominantly expansion, of microsatellite sequences. Changes in the repeat size initiate a cascade of pathological processes, frequently characteristic of a unique disease or a small subgroup of the URDs. Understanding of both the mechanism of repeat instability and molecular consequen...

  7. Effect of Dental Chair Light on Enamel Bonding of Orthodontic Brackets Using Light Cure Based Adhesive System: An In-Vitro Study

    Science.gov (United States)

    Tiwari, Anil; Shyagali, Tarulatha; Kohli, Sarvraj; Joshi, Rishi; Gupta, Abhishek; Tiwari, Rana

    2016-01-01

    Aim: The aim of this in vitro study was to evaluate the influence of the Dental chair light on the bond strength of light cured composite resin. Materials and Methods: Sixty therapeutically extracted human premolar teeth were randomly allocated to two groups of 30 specimens each. In both groups light cured composite resin (Transbond XT) and MBT premolar metal brackets (3M Unitek) was used to bond brackets. In group I and II light curing was done using Light-emitting diode light curing units without and with the dental chair light respectively. After bonding, all samples were stored in distilled water at room temperature for 24 hours and subsequently tested for shear bond strength and Adhesive Remnant Index (ARI) scores. Data was subjected to Mann Whitney U statistical test. Results: Results indicated that there was significantly higher shear bond strength (7.71 ± 1.90) for the Group II (composite cured with LED and dental chair light) compared with Group I (composite cured with LED LCU only) (5.74 ± 1.13).the obtained difference was statistically significant. There was no statistical significant difference between ARI scores in between the groups. Conclusions: light cure bonding with dental chair light switched on will produce greater bond strength than the conventional bonding. However, the ARI score were similar to both the groups. It is advised that the inexperienced orthodontist should always switch off the dental chair light while bonding for enough working time during the bracket placement. PMID:28077886

  8. 47 CFR 97.205 - Repeater station.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Repeater station. 97.205 Section 97.205... SERVICE Special Operations § 97.205 Repeater station. (a) Any amateur station licensed to a holder of a Technician, General, Advanced or Amateur Extra Class operator license may be a repeater. A holder of...

  9. 47 CFR 22.1015 - Repeater operation.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Repeater operation. 22.1015 Section 22.1015... Offshore Radiotelephone Service § 22.1015 Repeater operation. Offshore central stations may be used as repeater stations provided that the licensee is able to maintain control of the station, and in...

  10. Theory Analysis and Experiment Research of the Leg Mechanism for the Human-Carrying Walking Chair Robot

    Directory of Open Access Journals (Sweden)

    Lingfeng Sang

    2014-01-01

    Full Text Available For the high carrying capacity of the human-carrying walking chair robot, in this paper, 2-UPS+UP parallel mechanism is selected as the leg mechanism; then kinematics, workspace, control, and experiment of the leg mechanism are researched in detail. Firstly, design of the whole mechanism is described and degrees of freedom of the leg mechanism are analyzed. Second, the forward position, inverse position, and velocity of leg mechanism are studied. Third, based on the kinematics analysis and the structural constraints, the reachable workspace of 2-UPS+UP parallel mechanism is solved, and then the optimal motion workspace is searched in the reachable workspace by choosing the condition number as the evaluation index. Fourth, according to the theory analysis of the parallel leg mechanism, its control system is designed and the compound position control strategy is studied. Finally, in optimal motion workspace, the compound position control strategy is verified by using circular track with the radius 100 mm; the experiment results show that the leg mechanism moves smoothly and does not tremble obviously. Theory analysis and experiment research of the single leg mechanism provide a theoretical foundation for the control of the quadruped human-carrying walking chair robot.

  11. Situating the Embodied Mind in a Landscape of Standing Affordances for Living Without Chairs: Materializing a Philosophical Worldview.

    Science.gov (United States)

    Rietveld, Erik

    2016-07-01

    Sitting too much is unhealthy, but a widespread habit in many societies. Realizing behavioral change in this area is hard. Our societies promote being seated via the way its places are structured: they are filled with chairs for example. How can we make healthier environments that invite people to move around more? This article shows how philosophical research in the area of embodied/enactive cognitive science let to a built vision for the office of the future, of 2025. Multidisciplinary studio RAAAF [Rietveld Architecture-Art-Affordances] and visual artist Barbara Visser built this world without chairs, titled The End of Sitting. This large rock-like landscape integrates many affordances for standing. Affordances are the possibilities for action provided by the environment. This landscape of standing affordances allows people to work standing while being supported by the material structure of the environment. This unorthodox working landscape is both an enactive art installation and the materialization of a philosophical worldview that understands people as embodied minds situated in a landscape of affordances. It stimulates reflection on the way built environments can naturally invite more active and healthy behavior.

  12. A comparison of the lateral decubitus and beach-chair positions for shoulder surgery: advantages and complications.

    Science.gov (United States)

    Li, Xinning; Eichinger, Josef K; Hartshorn, Timothy; Zhou, Hanbing; Matzkin, Elizabeth G; Warner, Jon P

    2015-01-01

    Arthroscopic or open shoulder surgery can be performed using the lateral decubitus or beach-chair position. Advantages of the lateral decubitus position include better visualization and instrument access for certain procedures and decreased risk for cerebral hypoperfusion. Complications associated with this position include traction injuries, resulting in neurapraxia, thromboembolic events, difficulty with airway management, and the potential need to convert to an anterior open approach. One advantage of the beach-chair position is easier setup from a supine to upright position, which allows the surgeon the option to convert to an open procedure if necessary. Although rare, patients in this position may experience cerebral hypoperfusion and complications that range from cranial nerve injury to infarction. Other complications related to this position include cervical traction neurapraxia, blindness, and cardiac and embolic events. The surgeon must be cognizant of the complications associated with both positions and take extra care in the initial patient setup and coordination with the anesthesiologist to minimize the risk of complications and morbidity. Copyright 2014 by the American Academy of Orthopaedic Surgeons.

  13. ProtRepeatsDB: a database of amino acid repeats in genomes

    Directory of Open Access Journals (Sweden)

    Chauhan Virander S

    2006-07-01

    Full Text Available Abstract Background Genome wide and cross species comparisons of amino acid repeats is an intriguing problem in biology mainly due to the highly polymorphic nature and diverse functions of amino acid repeats. Innate protein repeats constitute vital functional and structural regions in proteins. Repeats are of great consequence in evolution of proteins, as evident from analysis of repeats in different organisms. In the post genomic era, availability of protein sequences encoded in different genomes provides a unique opportunity to perform large scale comparative studies of amino acid repeats. ProtRepeatsDB http://bioinfo.icgeb.res.in/repeats/ is a relational database of perfect and mismatch repeats, access to which is designed as a resource and collection of tools for detection and cross species comparisons of different types of amino acid repeats. Description ProtRepeatsDB (v1.2 consists of perfect as well as mismatch amino acid repeats in the protein sequences of 141 organisms, the genomes of which are now available. The web interface of ProtRepeatsDB consists of different tools to perform repeat s; based on protein IDs, organism name, repeat sequences, and keywords as in FASTA headers, size, frequency, gene ontology (GO annotation IDs and regular expressions (REGEXP describing repeats. These tools also allow formulation of a variety of simple, complex and logical queries to facilitate mining and large-scale cross-species comparisons of amino acid repeats. In addition to this, the database also contains sequence analysis tools to determine repeats in user input sequences. Conclusion ProtRepeatsDB is a multi-organism database of different types of amino acid repeats present in proteins. It integrates useful tools to perform genome wide queries for rapid screening and identification of amino acid repeats and facilitates comparative and evolutionary studies of the repeats. The database is useful for identification of species or organism specific

  14. Measurement of repeat effects in Chicago’s criminal social network

    Directory of Open Access Journals (Sweden)

    Paul Kump

    2016-07-01

    Full Text Available The “near-repeat” effect is a well-known criminological phenomenon in which the occurrence of a crime incident gives rise to a temporary elevation of crime risk within close physical proximity to an initial incident. Adopting a social network perspective, we instead define a near repeat in terms of geodesic distance within a criminal social network, rather than spatial distance. Specifically, we report a statistical analysis of repeat effects in arrest data for Chicago during the years 2003–2012. We divide the arrest data into two sets (violent crimes and other crimes and, for each set, we compare the distributions of time intervals between repeat incidents to theoretical distributions in which repeat incidents occur only by chance. We first consider the case of the same arrestee participating in repeat incidents (“exact repeats” and then extend the analysis to evaluate repeat risks of those arrestees near one another in the social network. We observe repeat effects that diminish as a function of geodesic distance and time interval, and we estimate typical time scales for repeat crimes in Chicago.

  15. Pentatricopeptide repeat proteins in plants.

    Science.gov (United States)

    Barkan, Alice; Small, Ian

    2014-01-01

    Pentatricopeptide repeat (PPR) proteins constitute one of the largest protein families in land plants, with more than 400 members in most species. Over the past decade, much has been learned about the molecular functions of these proteins, where they act in the cell, and what physiological roles they play during plant growth and development. A typical PPR protein is targeted to mitochondria or chloroplasts, binds one or several organellar transcripts, and influences their expression by altering RNA sequence, turnover, processing, or translation. Their combined action has profound effects on organelle biogenesis and function and, consequently, on photosynthesis, respiration, plant development, and environmental responses. Recent breakthroughs in understanding how PPR proteins recognize RNA sequences through modular base-specific contacts will help match proteins to potential binding sites and provide a pathway toward designing synthetic RNA-binding proteins aimed at desired targets.

  16. General benchmarks for quantum repeaters

    CERN Document Server

    Pirandola, Stefano

    2015-01-01

    Using a technique based on quantum teleportation, we simplify the most general adaptive protocols for key distribution, entanglement distillation and quantum communication over a wide class of quantum channels in arbitrary dimension. Thanks to this method, we bound the ultimate rates for secret key generation and quantum communication through single-mode Gaussian channels and several discrete-variable channels. In particular, we derive exact formulas for the two-way assisted capacities of the bosonic quantum-limited amplifier and the dephasing channel in arbitrary dimension, as well as the secret key capacity of the qubit erasure channel. Our results establish the limits of quantum communication with arbitrary systems and set the most general and precise benchmarks for testing quantum repeaters in both discrete- and continuous-variable settings.

  17. Hungarian repeat station survey, 2010

    Directory of Open Access Journals (Sweden)

    Péter Kovács

    2013-03-01

    Full Text Available The last Hungarian repeat station survey was completed between October 2010 and February 2011. Declination, inclination and the total field were observed using one-axial DMI fluxgate magnetometer mounted on Zeiss20A theodolite and GSM 19 Overhauser magnetometer. The magnetic elements of the sites were reduced to the epoch of 2010.5 on the basis of the continuous recordings of Tihany Geophysical Observatory. In stations located far from the reference observatory, the observations were carried out in the morning and afternoon in order to decrease the effect of the distant temporal correction. To further increase the accuracy, on-site dIdD variometer has also been installed near the Aggtelek station, in the Baradla cave, during the survey of the easternmost sites. The paper presents the technical details and the results of our last campaign. The improvement of the accuracy of the temporal reduction by the use of the local variometer is also reported.

  18. Coastal subsidence and relative sea level rise

    Science.gov (United States)

    Ingebritsen, Steven E.; Galloway, Devin L.

    2014-01-01

    Subsurface fluid-pressure declines caused by pumping of groundwater or hydrocarbons can lead to aquifer-system compaction and consequent land subsidence. This subsidence can be rapid, as much as 30 cm per year in some instances, and large, totaling more than 13 m in extreme examples. Thus anthropogenic subsidence may be the dominant contributor to relative sea-level rise in coastal environments where subsurface fluids are heavily exploited. Maximum observed rates of human-induced subsidence greatly exceed the rates of natural subsidence of unconsolidated sediments (~0.1–1 cm yr−1) and the estimated rates of ongoing global sea-level rise (~0.3 cm yr−1).

  19. Numerical and approximate solutions for plume rise

    Science.gov (United States)

    Krishnamurthy, Ramesh; Gordon Hall, J.

    Numerical and approximate analytical solutions are compared for turbulent plume rise in a crosswind. The numerical solutions were calculated using the plume rise model of Hoult, Fay and Forney (1969, J. Air Pollut. Control Ass.19, 585-590), over a wide range of pertinent parameters. Some wind shear and elevated inversion effects are included. The numerical solutions are seen to agree with the approximate solutions over a fairly wide range of the parameters. For the conditions considered in the study, wind shear effects are seen to be quite small. A limited study was made of the penetration of elevated inversions by plumes. The results indicate the adequacy of a simple criterion proposed by Briggs (1969, AEC Critical Review Series, USAEC Division of Technical Information extension, Oak Ridge, Tennesse).

  20. Capillary rise of water in hydrophilic nanopores

    CERN Document Server

    Gruener, Simon; Wallacher, Dirk; Kityk, Andriy V; Huber, Patrick; 10.1103/PhysRevE.79.067301

    2009-01-01

    We report on the capillary rise of water in three-dimensional networks of hydrophilic silica pores with 3.5nm and 5nm mean radii, respectively (porous Vycor monoliths). We find classical square root of time Lucas-Washburn laws for the imbibition dynamics over the entire capillary rise times of up to 16h investigated. Provided we assume two preadsorbed strongly bound layers of water molecules resting at the silica walls, which corresponds to a negative velocity slip length of -0.5nm for water flow in silica nanopores, we can describe the filling process by a retained fluidity and capillarity of water in the pore center. This anticipated partitioning in two dynamic components reflects the structural-thermodynamic partitioning in strongly silica bound water layers and capillary condensed water in the pore center which is documented by sorption isotherm measurements.

  1. Quality control during repeated fryings

    Directory of Open Access Journals (Sweden)

    Cuesta, C.

    1998-08-01

    Full Text Available Most of the debate ¡s about how the slow or frequent turnover of fresh fat affects the deterioration, of fat used in frying. Then, the modification of different oils used in repeated fryings of potatoes without or with turnover of fresh oil, under similar frying conditions, was evaluated by two criteria: by measuring the total polar component isolated by column chromatography and by the evaluation of the specific compounds related to thermoxidative and hydrolytic alteration by High Performance Size Exclusion Chromatography (HPSEC. The results indicate that with frequent turnover of fresh oil, the critical level of 25% of polar material is rarely reached, and there are fewer problems with fat deterioration because the frying tended to increase the level of polar material and thermoxidative compounds (polymers and dimers of triglycerides and oxidized triglycerides in the fryer oil during the first fryings, followed by minor changes and a tendency to reach a near-steady state in successive fryings. However, in repeated frying of potatoes using a null turnover the alteration rate was higher being linear the relationship found between polar material or the different thermoxidative compounds and the number of fryings. On the other hand chemical reactions produced during deep-fat frying can be minimized by using proper oils. In addition the increased level of consumers awareness toward fat composition and its impact on human health could had an impact on the selection of fats for snacks and for industry. In this way monoenic fats are the most adequate from a nutritional point of view and for its oxidative stability during frying.

  2. Sea level rise and its coastal impacts

    OpenAIRE

    Cazenave, Anny; Le Cozannet, Gonéri

    2014-01-01

    Link to the paper: http://onlinelibrary.wiley.com/doi/10.1002/2013EF000188/abstract; International audience; Global warming in response to accumulation of human-induced greenhouse gases inside the atmosphere has already caused several visible consequences, among them increase of the Earth's mean temperature and ocean heat content, melting of glaciers, and loss of ice from the Greenland and Antarctica ice sheets. Ocean warming and land ice melt in turn are causing sea level to rise. Sea level ...

  3. The Global NR Output Kept Rising

    Institute of Scientific and Technical Information of China (English)

    Bo Wen

    2011-01-01

    In early November, Association of Natural Rubber Producing Countries in- dicated that from 2005 to 2011, the pro- ducing area and output of the global NR both kept rising. As predicted, the pro- ducing area will be 72 million hectares, the output will be 10.02 million tons and the average output will be 1,392 kg/hectare by the end of2011.

  4. Asia's Peaceful Rise: A Multiple Interactive Process

    Institute of Scientific and Technical Information of China (English)

    Cui Liru

    2005-01-01

    @@ As the author sees it, "Asia's peaceful rise" seems to be a more appropriate expression to highlight the 21st century than the current buzzwords of "Asian century" or "the century of Asian resurgence" justifiably associated with the surging growth of regional economies and tighter ties among them since the end of the Cold War. It is of crucial significance to identify this as a process replete with complexities-an identification necessary for gauging its impact on the international community.

  5. Operational Art and the Rising Sun

    Science.gov (United States)

    1994-05-16

    shall run wild for the first six months or a year, but I have utterly no confidence for the second or third ’Potter, p. 46; Michael Slackman, Target...attack that no american carriers in 26Joseph K. Taussig , "A Tactical View of Pearl Harbor", Paul Stillwell, ed., Air Raid: Pearl Harbor! (Annapolis, MD...Weiner, 1991. Slackman, Michael . Target: Pearl Harbor. Honolulu: University of Hawaii Press, 1990. Stephan, John J. Hawaii Under the Rising Sun

  6. Chinas Rise: A Time for Choosing

    Science.gov (United States)

    2012-06-01

    industrialization and empowerment through technology, the productive balances will shift. As productive balances shift, all other forms of power...population has a liability function. China’s rapid rise and empowerment of individuals with higher education and standards of living have forced the...all of these decisions are fraught with risk and none are palatable. The United States has consciously chosen schizophrenia in relation to China’s

  7. Rise of the Middle Class in China

    OpenAIRE

    Khasyanova, Adelya

    2007-01-01

    With the fast expansion of Chinese economy, it is possible to observe more than the once obvious change. With regards to consumption, China is becoming a significant player on the world market economy. Some critics have argues that a result of the 1978 changes introduced by Deng Xiaoping has been the rise of the middle class in China, previously only barely existent and practically wiped in the 1960s during the Cultural Revolution. However, whilst China's middle class is still relatively smal...

  8. CAG repeat expansions in bipolar and unipolar disorders

    Energy Technology Data Exchange (ETDEWEB)

    Oruc, L.; Verheyen, G.R.; Raeymaekers, P.; Van Broeckhoven, C. [Univ. of Antwerp (Belgium)] [and others

    1997-03-01

    Family, twin, and adoption studies consistently have indicated that the familial aggregation of bipolar (BP) disorder and unipolar recurrent major depression (UPR) is accounted for largely by genetic factors. However, the mode of inheritance is complex. One of the possible explanations could be that a gene with variable penetrance and variable expression is involved. Recently there have been reports on a new class of genetic diseases caused by an abnormal trinucleotide-repeat expansion (TRE). In a number of genetic disorders, these dynamic mutations were proved to be the biological basis for the clinically observed phenomenon of anticipation. DNA consisting of repeated triplets of nucleotides becomes unstable and increases in size over generations within families, giving rise to an increased severity and/or an earlier onset of the disorder. It has been recognized for a long time that anticipation occurs in multiplex families transmitting mental illness. More recent studies also suggest that both BP disorder and UPR show features that are compatible with anticipation. Although the findings of anticipation in BP disorders and in UPR must be interpreted with caution because of the possible presence of numerous ascertainment biases, they support the hypothesis that pathological TREs are implicated in the transmission of these disorders. TRE combined with variable penetrance of expression could explain the complex transmission pattern observed in BP disorder. In view of this, the recent reports of an association between CAG-repeat length and BP disorder in a Belgian, Swedish, and British population are promising. 14 refs., 1 fig., 1 tab.

  9. Oral creatine supplementation augments the repeated bout effect.

    Science.gov (United States)

    Veggi K, F T; Machado, Marco; Koch, Alexander J; Santana, Sandro C; Oliveira, Sedison S; Stec, Michael J

    2013-08-01

    We examined the effects of creatine supplementation on the response to repeated bouts of resistance exercise. Young men (24.1 ± 5.2 yr) were divided into Creatine (CM, n = 9) and Placebo (PL, n = 9) groups. On day (D) 1 and D15, subjects performed four sets of bicep curls at 75% 1-RM to concentric failure. On D8-D13, subjects consumed either 20g/d creatine monohydrate or placebo. Muscle soreness and elbow joint range of motion (ROM) were assessed on D1-D5 and D15-D19. Serum creatine kinase activity (CK) was assessed on D1, D3, D5, D15, D17, and D19. The first exercise bout produced increases in muscle soreness and CK, and decreases in ROM in both groups (p Creatine supplementation provides an additive effect on blunting the rise of muscle damage markers following a repeated bout of resistance exercise. The mechanism by which creatine augments the repeated bout effect is unknown but is likely due to a combination of creatine's multifaceted functions.

  10. A universal shape function for rising jets

    CERN Document Server

    van Rijn, Cees J M; Boeker, Egbert

    2016-01-01

    A small drop that splashes into a deep liquid sometimes reappears as a small rising jet, for example when a water drop splashes into a pool or when coffee drips into a cup. Here we describe that the growing and rising jet continuously redistributes its fluid to maintain a universal shape originating from a surface tension based deceleration of the jet; the shape is universal in the sense that the shape of the rising jet is the same at all times; only the scaling depends on fluid parameters and deceleration. An inviscid equation of motion for the jet is proposed assuming a time dependent but uniform deceleration; the equation of motion is made dimensionless by using a generalized time-dependent capillary length ${\\lambda_c}$ and is solved numerically. As a solution a concave shape function is found that is fully determined by three measurable physical parameters: deceleration, mass density and surface tension; it is found that the surface tension based deceleration of the jet scales quadratic with the size of ...

  11. The effects of residual temperature rise on ultrasound heating.

    Science.gov (United States)

    Karagoz, Irfan; Kartal, M Kemal

    2005-12-01

    In recent theoretical studies, the temperature rise produced by diagnostic ultrasound was estimated by solving the Bioheat Transfer Equation (BHTE) but ignoring the initial temperature rise. The temperature rise was determined in our study by the BHTE including an initial temperature rise. We discuss how the initial temperature rise occurs during an ultrasound examination, and how the initial temperature rise affects subsequent ultrasound heating. We theoretically show that the temperature rise produced by the ultrasound examination (exposure time of 500 s) in a tissue sample having an initial temperature rise was higher than that in a tissue sample with no initial temperature rise that was exposed to ultrasound (exposure time of 1200 s). The theoretical results for these two cases were 5.64 degrees C and 3.58 degrees C, respectively. In our experimental study, the highest temperature rise was measured in the presence of an initial temperature rise as in the theoretical study under the same exposure conditions. Mean temperature rises for tissue without an initial temperature rise and for tissue with an initial temperature rise were 2.42 +/- 0.13 degrees C and 3.62 +/- 0.17 degrees C, respectively. Both theoretical and experimental studies show that unless the initial temperature rise produced by the first ultrasound examination decreases to 0 degrees C, the next ultrasound examination on the same tissue sample may cause the temperature rise to be higher than expected.

  12. [Achievements of the Cracow School of Forensic Medicine--on the 200 the anniversary of the Chair of Forensic Medicine--Part I].

    Science.gov (United States)

    Marek, Zdzisław

    2006-01-01

    The Chair of Forensic Medicine was established at the Jagiellonian University in 1804. Initially, the Cracow academic institution developed along the similar lines as other Chairs of those times. Considerable progress was made thanks to Professor W. Hechel, who headed the Chair since 1834 and initiated intensive research and didactic activities. His successors, mostly Professors Antoni Bryk and Stanisław Janikowski, extended the Chair, strengthening its importance at the University and in the judicial system. The golden age commenced in 1882, when Professor Leon Blumenstock became Head of the Chair. Other founders of the Cracow School of Forensic Medicine include Professors Leon Wachholz and Jan Olbrycht (1895-1962). It was these two eminent scientists that wrote important textbooks, discovered new methods and helped the Cracow institution to become a significant research center of forensic medicine. Their important achievements include the test for COHb determination in blood of victims of carbon monoxide poisoning (the Wachholz-Sieradzki test), the explanation of death mechanisms involved in violent death by drawning, the development of protocols for opinionating and event reconstruction in cases of violent death by poisoning and mechanical injuries, and the widely accepted theory and medicolegal assessment of medical errors. Other outstanding achievements focused on investigations of biological trace evidence, serohematology in determinations of fatherhood, and--what may be the most important--identification of responsibilities and role of an expert in legal proceedings, and many others. The work of several generations of Cracow forensic medicine specialist has culminated in training a cadre of specialists who became heads of the majority of Chairs of Forensic Medicine in Poland, writing numerous textbooks for students, monographs, hundreds of research papers and an enormous number of medico-legal opinions, the participation in almost all major court

  13. A web-based electronic patient record (ePR) system for data integration in movement analysis research on wheel-chair users to minimize shoulder pain

    Science.gov (United States)

    Deshpande, Ruchi R.; Requejo, Philip; Sutisna, Erry; Wang, Ximing; Liu, Margaret; McNitt-Gray, Sarah; Ruparel, Puja; Liu, Brent J.

    2012-02-01

    Patients confined to manual wheel-chairs are at an added risk of shoulder injury. There is a need for developing optimal bio-mechanical techniques for wheel-chair propulsion through movement analysis. Data collected is diverse and in need of normalization and integration. Current databases are ad-hoc and do not provide flexibility, extensibility and ease of access. The need for an efficient means to retrieve specific trial data, display it and compare data from multiple trials is unmet through lack of data association and synchronicity. We propose the development of a robust web-based ePR system that will enhance workflow and facilitate efficient data management.

  14. CNOOC Revenue Gains Dramatically on Rising Prices

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    CNOOC Ltd., the listed arm of China National Offshore Corporation (CNOOC), the largest offshore oil and gas producer in China, produced a total of 80.9 million barrels of oil equivalent in the third quarter in 2011, down 9.1 percent from the same period last year as it shut the country's largest offshore oil field after an oil spill off China's northern coast. However, the company posted a 23.7 percent gain in third-quarter revenue from a year earlier as it benefited from rising oil and gas prices,

  15. Sea-Level Rise by 2100

    Digital Repository Service at National Institute of Oceanography (India)

    Church, J.A; Clark, P.A; Cazenave, A; Gregory, J.M.; Jevrejeva, S.; Levermann, A; Merrifield, M.A; Milne, G.A.; Nerem, R.S.; Nunn, P.D.; Payne, A.J.; Pfeffer, W.T.; Stammer, D.; Unnikrishnan, A.S.

    VOL 342 20 DECEMBER 2013 1445 LETTERS edited by Jennifer Sills 1462 COMMENTARY LETTERS I BOOKS I POLICY FORUM I EDUCATION FORUM I PERSPECTIVES 1452 Defending the nest IBI Prize Essay C R E D IT : A N D R E W M A N D E M A K E R /W IK IM E... D IA C O M M O N S Sea-Level Rise by 2100 IN HIS NEWS AND ANALYSIS PIECE REPORTING ON THE NEWLY RELEASED FIFTH ASSESSMENT report (AR5) by Working Group I (WGI) of the Intergovernmental Panel on Climate Change (IPCC) (“A Stronger IPCC Report,” 4...

  16. Exploring the unprecedented rise in Danish burglary

    DEFF Research Database (Denmark)

    Sorensen, David W.M.

    2012-01-01

    burglary increased so dramatically. This paper explores four sets of possible explanations for the increase, namely: Changes in public reporting, police recording and insurance practices; changes in population age, drug use and economic recession; increasing crime tourism; and impediments policing caused...... by the National Police Reform of 2007. While some or all of these factors may have contributed to the overall rise, none of them come close to explaining it on their own. This absence of evidence is especially interesting in light of widespread assumptions in the media and among some police about foreign burglary...

  17. Rising Long-term Interest Rates

    DEFF Research Database (Denmark)

    Hallett, Andrew Hughes

    work, agree with that conclusion. Forecasts of long rates for the near future, and of short rates further out, both show a weak tendency to rise further. But they both remain small by historical standards. The recommendation for the ECB is therefore not to react by undertaking any major policy changes......: larger in some places, but offset by their absence elsewhere. That is a matter for domestic policy, not ECB policy (concerned as it is with average European outcomes, not with outcomes in a particular economy)....

  18. Consumerism and wellness: rising tide, falling cost.

    Science.gov (United States)

    Domaszewicz, Alexander

    2008-01-01

    Annual employer-sponsored health plan cost increases have been slowing incrementally due to slowing health care utilization--a phenomenon very likely tied to the proliferation of health management activities, wellness programs and other consumerism strategies. This article describes the sharp rise in recent years of consumer-directed health plans (CDHPs) and explains what developments must happen for genuine consumer-directed health care to realize its full potential. These developments include gathering transparent health care information, increasing consumer demand for that information and creating truly intuitive data solutions that allow consumers to easily access information in order to make better health care decisions.

  19. China's Industrial Economy Rises Amidst Diffculties

    Institute of Scientific and Technical Information of China (English)

    Richard zhu

    2011-01-01

    “China's Industrial production is on the steady rise,though confronted with the tightening external economic environment,” according to a recent report by the Ministry of Industry and Information Technology (MIIT).The industrial value-added output during the January-July period rose 14.3 percent year on year.Since the second half of last year,the industrial economy has been keeping a smooth growth.The industrial value-added output in the first and second quarter of this year climbed 14.4 and 14 percent respectively.Generally,there is no drastic fluctuation in the industrial economy.

  20. PRESIDENT MUSHARRAF: All Weather Friendship Keeps Rising

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Tangible Suggestions on Promoting All Weather Bilateral Trade I would first of all like to extend warm greetings from the people of Pakistan to the people of China on the 55th year of all weather friendship between our two countries and this all weather friendship will keep rising. Succeeding generations in both countries have ever since carefully nurtured this friendship which has blossomed into beautiful and all comprehensive partnership for peace and development. Pakistan China friendship is rooted in the ethos of our peoples.It evokes spontaneous love, respect, admiration and touches a receptive cord in every heart that resonates and energizes this unique relationship.

  1. Liquid jet pumped by rising gas bubbles

    Science.gov (United States)

    Hussain, N. A.; Siegel, R.

    1975-01-01

    A two-phase mathematical model is proposed for calculating the induced turbulent vertical liquid flow. Bubbles provide a large buoyancy force and the associated drag on the liquid moves the liquid upward. The liquid pumped upward consists of the bubble wakes and the liquid brought into the jet region by turbulent entrainment. The expansion of the gas bubbles as they rise through the liquid is taken into account. The continuity and momentum equations are solved numerically for an axisymmetric air jet submerged in water. Water pumping rates are obtained as a function of air flow rate and depth of submergence. Comparisons are made with limited experimental information in the literature.

  2. Automatic evaluation of the 30-s chair stand test using inertial/magnetic-based technology in an older prefrail population.

    Science.gov (United States)

    Millor, Nora; Lecumberri, Pablo; Gomez, Marisol; Martinez-Ramirez, Alicia; Rodriguez-Manas, Leocadio; Garcia-Garcia, Francisco José; Izquierdo, Mikel

    2013-07-01

    The aim of this study was to evaluate the inertial measures of the 30-s chair stand test using modern body-fixed motion sensors. Polynomial data fitting was used to correct the drift effect in the position estimation. Thereafter, the three most important test cycles phases ("impulse," "stand up," and "sit down") were characterized and automatically analyzed. Automated test control is provided, making it possible for researchers without engineering knowledge to run the test. A collection of meaningful data based on kinematic variables is selected for further research. The proposed methodology for data analysis is a feasible tool for use in clinical settings. This method may not only improve rehabilitation therapies but also identify people at risk for falls more accurately than simply evaluating the number of cycles.

  3. Practical infant multifunctional sedan chair%实用的多功能婴幼儿健身轿椅

    Institute of Scientific and Technical Information of China (English)

    刘国林; 刘淼

    2014-01-01

    Multifunctional infant fitness sedan chair, it is mainly composed of sedan chairs, power strap with a rope, made up of rings, vibrating springs and hooks, music player can be attached, plastic toys and other infant products, sedan chairs can be made whole. This device has multiple uses, you can switch to a different coefficient of stiffness of power springs or increase or decrease the power springs and the replacement of the number of different diameters of sedan chairs, suitable for infants and young children from 3 months to 3 years old. It can be used to make infant about swinging or rotating and bouncing up and down movement in the small, can contribute to infant body balance and exercise major peripheral receptors of vestibular system function; Can contribute to the vision and brain development in infants; Infants and young children can exercise the muscles and bones of the legs, buttocks and development; While infants and young children can exercise balls, promote healthy development of body and mind; Can also let the infant through space before and after independent excretion, and infants more than usual for a longer period for 8 months of daily life and the game.%多功能婴幼儿健身轿椅,它主要由轿椅、强力吊带与吊绳、吊环、振动弹簧与挂钩组成,另外可以附加音乐播放器、塑料玩具等婴幼儿用品,轿椅也可以做成整体。本设备有多种用途,可以通过更换不同倔强系数的强力弹簧或增减强力弹簧的个数以及更换不同直径的轿椅,适宜于3个月至3岁的婴幼儿使用。它可用来让婴幼儿荡秋千或左右小范围旋转和做上下弹跳运动,可以促进和锻炼婴幼儿的人体平衡系统的主要末梢感受器官前庭的功能发育;可以促进婴幼儿视觉及大脑的发育;可以锻炼婴幼儿的腿部、臀部的肌肉和骨骼的发育;同时可以锻炼婴幼儿的胆量,促进身心的健康发展;还可以让婴幼儿通过前

  4. Evaluation of a pilot peer observation of teaching scheme for chair-side tutors at Glasgow University Dental School.

    Science.gov (United States)

    Cairns, A M; Bissell, V; Bovill, C

    2013-06-01

    To introduce and examine a pilot peer observation of teaching (POT) scheme within the Department of Paediatric Dentistry at Glasgow Dental School and its associated outreach centres. All tutors teaching paediatric dentistry were invited to be involved in evaluation of the POT scheme. Participants were randomly paired with a peer, who then observed their teaching and provided constructive feedback. For those consenting to be involved in the evaluation of the scheme, semi-structured, one-to-one interviews were carried out by the principal investigator. POT was found by all participants to be a beneficial process, reassuring those of their teaching styles and giving them ideas to adapt their teaching. POT is an effective method for engaging chair-side tutors in the reflection and development of their teaching practice via observations and scholarly discussion.

  5. Strengthening concept learning by repeated testing.

    Science.gov (United States)

    Wiklund-Hörnqvist, Carola; Jonsson, Bert; Nyberg, Lars

    2014-02-01

    The aim of this study was to examine whether repeated testing with feedback benefits learning compared to rereading of introductory psychology key-concepts in an educational context. The testing effect was examined immediately after practice, after 18 days, and at a five-week delay in a sample of undergraduate students (n = 83). The results revealed that repeated testing with feedback significantly enhanced learning compared to rereading at all delays, demonstrating that repeated retrieval enhances retention compared to repeated encoding in the short- and the long-term. In addition, the effect of repeated testing was beneficial for students irrespectively of working memory capacity. It is argued that teaching methods involving repeated retrieval are important to consider by the educational system.

  6. Needs Assessment for Standardized Medical Student Imaging Education: Review of the Literature and a Survey of Deans and Chairs.

    Science.gov (United States)

    Webb, Emily M; Naeger, David M; McNulty, Nancy J; Straus, Christopher M

    2015-10-01

    Medical imaging education often has limited representation in formal medical student curricula. Although the need for greater inclusion of radiology material is generally agreed on, the exact skillset that should be taught is less clear. The purpose of our study was to perform a needs assessment for a national radiology curriculum for medical students. We analyzed data from previous unpublished portions of the American College of Radiology/Alliance of Medical Student Educators in Radiology survey of Deans and Radiology Chairs regarding prevalence of radiology curricular revisions, assessment tools, use of the American College of Radiology Appropriateness Criteria, and resources used in curriculum revision. We also performed a literature search through both PubMED and a general search engine (Google) to identify available resources for designing and implementing imaging curricula and curricular revisions. Medical school deans and chairs reported a need for more overall radiology content; one of every six programs (15%) reported they had no recognized imaging curriculum. Of schools currently with imaging curricula, 82% have undergone revision in the last 10 years using a variety of different resources, but there is no universally agreed on guide or standard curriculum. The PubMED and Google searches identified only 23 and eight resources, respectively, suggesting a sizable deficit in available guidance; however, a single published medical student radiology curriculum is available through the Alliance of Medical Student Educators in Radiology. There is a need, but few available resources, to guide educators in adding imaging content to medical school curricula. We postulate that a standardized national curriculum directed by a focused skillset may be useful to educators and could result in greater uniformity of imaging skills among graduating US medical students. A proposed skillset to guide a national curriculum in radiology is described. Copyright © 2015 AUR

  7. Effect of Pre-Procedural Chair-Side Finger Stretches on Pinch Strength amongst Dental Cohort- A Biomechanical Study

    Science.gov (United States)

    Padhye, Ashvini Mukul; Gupta, Himani Swatantrakumar

    2017-01-01

    Introduction Ergonomics is the essential principle behind the health and successful practice for a dentist and dental hygienist. During the procedure of dental Scaling and Root Planing (SRP), a high level of pinch force is exerted by the finger muscles resulting in early muscle fatigue. Aim This pilot study comparatively evaluated the Pinch Strength (PS) of the finger muscles, prior to and after SRP, amongst dental cohort performing chair-side hand and finger stretches to those not performing the same. Materials and Methods Forty dental professionals were recruited by purposive sampling for the study and allocated into a test and control group. PS was recorded for both groups following which the test group performed finger stretches comprising of rubber band stretch, tendon glide, finger flexion and extension, thumb flexion and finger webbing. The subjects of both the groups carried out SRP for 30 minutes after which PS was again recorded. Inter-group difference was analysed for variability at baseline and 30 minutes after SRP using independent samples/unpaired t-test. Within group comparison of PS measurement was done using paired t-test. Results The PS for the test group declined from 14.425±2.577 pounds (lbs) to 13.725±2.557 lbs, while for the control group, a decline in PS from 13.65±2.636 lbs to 10.675±2.478 lbs after SRP was noted. On comparing the difference of means of both groups, a statistically significant result was obtained. Conclusion Work-related musculoskeletal disorders can be reduced by performing a few simple chair-side stretches. These stretches can help prevent the finger muscle fatigue during SRP and thus, increase its efficacy. PMID:28571269

  8. Safety and feasibility of modified chair-yoga on functional outcome among elderly at risk for falls

    Directory of Open Access Journals (Sweden)

    Mary Lou Galantino

    2012-01-01

    Full Text Available Falls are among the most common problems affecting older adults. At least 50% of those over the age of 80 fall annually. The goal of this pilot study was to assess the safety and feasibility of structured yoga in an elderly population with fall risk. Seniors at risk for falls were identified and enrolled in a single arm pilot trial. A chair based yoga program was provided twice a week for 8 weeks. The program was designed from previously published pilot data. A battery of validated instruments was administered at baseline and week eight and was used to identify which instruments may be sensitive to change as a result of a yoga program. Among sixteen seniors (median age of 88 with a previous history of falls, 87% provided data for assessment at the end of the intervention. Two patients withdrew, one due to a fall outside the institution and the other due to lack of time and interest. There were no adverse events during the yoga sessions. Paired-t tests compared pre-post changes and gains were noted in Fear of Falling (5.27 to 2.60; P = 0.029 and SPPB sit to stand subscale (0.31 to 1.00; P =.022. Improved trends were noted in anxiety and the timed up and go assessments. We found the modified chair-yoga program is safe and recruitment is feasible. Our data suggests that yoga may be beneficial in improving mobility and reducing fear of falling which warrants additional research via randomized controlled trial.

  9. Prévalence de la contamination par Salmonella des élevages de poulet de chair au Maroc

    Directory of Open Access Journals (Sweden)

    Chaiba Abdellah

    2016-01-01

    Full Text Available L’objectif de la présente étude est d’évaluer l’impact des pratiques de gestion et de l’hygiène générale sur la contamination des élevages en bande de poulets de chair par Salmonella à Meknès (Maroc. L’étude a été menée de septembre 2005 à octobre 2007 sur un échantillon de 25 élevages de poulets de chair. Un questionnaire a été soumis aux éleveurs et des échantillons de fientes fraîches de poulets ont été collectés. Les résultats indiquent que 24 % des élevages sont infectés par Salmonella spp. Onze facteurs de risque sur 24 testés sont significativement associés à la contamination des lots d’élevage par Salmonella. Les facteurs de risque de l’infection sont spécifiquement liés au manque d’hygiène. La contamination de la bande précédente et des poussins d’un jour augmente le risque d’infection par Salmonella. Cependant, l’utilisation d’antibiotiques à la mise en place des poussins et l’usage de détergent pour le nettoyage diminuent ce risque.

  10. Segregation distortion of the CTG repeats at the myotonic dystrophy locus

    Energy Technology Data Exchange (ETDEWEB)

    Chakraborty, R.; Stivers, D.N. [Univ. of Texas Houston Health Science Center, Houston, TX (United States); Deka, R.; Yu, Ling M.; Shriver, M.D.; Ferrell, R.E. [Univ. of Pittsburgh Graduate School of Public Health, Pittsburgh, PA (United States)

    1996-07-01

    Myotonic dystrophy (DM), an autosomal dominant neuromuscular disease, is caused by a CTG-repeat expansion, with affected individuals having {ge}50 repeats of this trinucleotide, at the DMPK locus of human chromosome 19q13.3. Severely affected individuals die early in life; the milder form of this disease reduces reproductive ability. Alleles in the normal range of CTG repeats are not as unstable as the (CTG){sub {ge}50} alleles. In the DM families, anticipation and parental bias of allelic expansions have been noted. However, data on mechanism of maintenance of DM in populations are conflicting. We present a maximum-likelihood model for examining segregation distortion of CTG-repeat alleles in normal families. Analyzing 726 meiotic events in 95 nuclear families from the CEPH panel pedigrees, we find evidence of preferential transmission of larger alleles (of size {le}29 repeats) from females (the probability of transmission of larger alleles is .565 {plus_minus} 0.03, different from .5 at P {approx} .028). There is no evidence of segregation distortion during male meiosis. We propose a hypothesis that preferential transmission of larger CTG-repeat alleles during female meiosis can compensate for mutational contraction of repeats within the normal allelic size range, and reduced viability and fertility of affected individuals. Thus, the pool of premutant alleles at the DM locus can be maintained in populations, which can subsequently mutate to the full mutation status to give rise to DM. 31 refs., 1 fig., 5 tabs.

  11. Repeat concussions in the national football league.

    Science.gov (United States)

    Casson, Ira R; Viano, David C; Powell, John W; Pellman, Elliot J

    2011-01-01

    Repeat concussion is an important issue in the National Football League (NFL). An initial description of repeat injuries was published for 6 years (1996-2001). The characteristics and frequency of repeat concussion in the NFL have not changed in the subsequent 6 years (2002-2007). Case control. From 1996 to 2007, concussions were reported using a standardized form documenting signs and symptoms, loss of consciousness and medical action taken. Data on repeat concussions were analyzed for the 12 years and compared between the 2 periods. In 2002-2007, 152 players had repeat concussions (vs 160 in 1996-2001); 44 had 3+ head injuries (vs 52). The positions most often associated with repeat concussion in 2002-2007 were the defensive secondary, kick unit, running back, and linebacker. The odds for repeat concussion were elevated for wide receivers, tight ends, and linebackers but lower than in the earlier period. During 2002-2007, over half of players with repeat concussion were removed from play, and fewer immediately returned (vs 1996-2001). The average duration between concussions was 1.25 years for 2002-2007 and 1.65 years for the 12-year period. Over 12 years, 7.6% of all repeat concussions occurred within 2 weeks of the prior concussion. The defensive secondary, kick unit, running back, and linebacker have the highest incidence of repeat concussion. During 2002-2007, more than half of players with repeat concussion were removed from play, and only a fraction immediately returned. Although concussion was managed more conservatively by team physicians in the recent 6 years, repeat concussions occurred at similar rates during both periods.

  12. Automated quality checks on repeat prescribing.

    OpenAIRE

    Rogers, Jeremy E; Wroe, Christopher J; Roberts, Angus; Swallow, Angela; Stables, David; Cantrill, Judith A; Rector, Alan L.

    2003-01-01

    BACKGROUND: Good clinical practice in primary care includes periodic review of repeat prescriptions. Markers of prescriptions that may need review have been described, but manually checking all repeat prescriptions against the markers would be impractical. AIM: To investigate the feasibility of computerising the application of repeat prescribing quality checks to electronic patient records in United Kingdom (UK) primary care. DESIGN OF STUDY: Software performance test against benchmark manual...

  13. Short Tandem Repeat DNA Internet Database

    Science.gov (United States)

    SRD 130 Short Tandem Repeat DNA Internet Database (Web, free access)   Short Tandem Repeat DNA Internet Database is intended to benefit research and application of short tandem repeat DNA markers for human identity testing. Facts and sequence information on each STR system, population data, commonly used multiplex STR systems, PCR primers and conditions, and a review of various technologies for analysis of STR alleles have been included.

  14. Measuring temperature rise during orthopaedic surgical procedures.

    Science.gov (United States)

    Manoogian, Sarah; Lee, Adam K; Widmaier, James C

    2016-09-01

    A reliable means for measuring temperatures generated during surgical procedures is needed to recommend best practices for inserting fixation devices and minimizing the risk of osteonecrosis. Twenty four screw tests for three surgical procedures were conducted using the four thermocouples in the bone and one thermocouple in the screw. The maximum temperature rise recorded from the thermocouple in the screw (92.7±8.9°C, 158.7±20.9°C, 204.4±35.2°C) was consistently higher than the average temperature rise recorded in the bone (31.8±9.3°C, 44.9±12.4°C, 77.3±12.7°C). The same overall trend between the temperatures that resulted from three screw insertion procedures was recorded with significant statistical analyses using either the thermocouple in the screw or the average of several in-bone thermocouples. Placing a single thermocouple in the bone was determined to have limitations in accurately comparing temperatures from different external fixation screw insertion procedures. Using the preferred measurement techniques, a standard screw with a predrilled hole was found to have the lowest maximum temperatures for the shortest duration compared to the other two insertion procedures. Future studies evaluating bone temperature increase need to use reliable temperature measurements for recommending best practices to surgeons.

  15. Gas-rise velocities during kicks

    Energy Technology Data Exchange (ETDEWEB)

    White, D.B. (Sedco Forex (FR))

    1991-12-01

    This paper reports on experiments to examine gas migration rates in drilling muds that were performed in a 15-m-long, 200-mm-ID inclinable flow loop where air injection simulates gas entry during a kick. These tests were conducted using a xanthum gum (a common polymer used in drilling fluids) solution to simulate drilling muds as the liquid phase and air as the gas phase. This work represents a significant extension of existing correlations for gas/liquid flows in large pipe diameters with non- Newtonian fluids. Bubbles rise faster in drilling muds than in water despite the increased viscosity. This surprising result is caused by the change in the flow regime, with large slug-type bubbles forming at lower void fractions. The gas velocity is independent of void fraction, thus simplifying flow modeling. Results show that a gas influx will rise faster in a well than previously believed. This has major implications for kick simulation, with gas arriving at the surface earlier than would be expected and the gas outflow rate being higher than would have been predicted. A model of the two-phase gas flow in drilling mud, including the results of this work, has been incorporated into the joint Schlumberger Cambridge Research (SCR)/BP Intl. kick model.

  16. Colliding Epidemics and the Rise of Cryptococcosis

    Directory of Open Access Journals (Sweden)

    Christina C. Chang

    2015-12-01

    Full Text Available Discovered more than 100 years ago as a human pathogen, the Cryptococcus neoformans–Cryptococcus gattii (C. neoformans–C. gattii complex has seen a large global resurgence in its association with clinical disease in the last 30 years. First isolated in fermenting peach juice, and identified as a human pathogen in 1894 in a patient with bone lesions, this environmental pathogen has now found niches in soil, trees, birds, and domestic pets. Cryptococcosis is well recognized as an opportunistic infection and was first noted to be associated with reticuloendothelial cancers in the 1950s. Since then, advances in transplant immunology, medical science and surgical techniques have led to increasing numbers of solid organ transplantations (SOT and hematological stem cell transplantations being performed, and the use of biological immunotherapeutics in increasingly high-risk and older individuals, have contributed to the further rise in cryptococcosis. Globally, however, the major driver for revivification of cryptococcosis is undoubtedly the HIV epidemic, particularly in Sub-Saharan Africa where access to care and antiretroviral therapy remains limited and advanced immunodeficiency, poverty and malnutrition remains the norm. As a zoonotic disease, environmental outbreaks of both human and animal cryptococcosis have been reported, possibly driven by climate change. This is best exemplified by the resurgence of C. gattii infection in Vancouver Island, Canada, and the Pacific Northwest of the United States since 1999. Here we describe how the colliding epidemics of HIV, transplantation and immunologics, climate change and migration have contributed to the rise of cryptococcosis.

  17. University Council for Educational Administration (UCEA) Academic Department Chairs' Self-Perceived Utilization of Bolman and Deal's Four-Frame Theoretical Model

    Science.gov (United States)

    Clark, Sonya L.; Lindahl, Ronald A.

    2014-01-01

    This study examined the Bolman and Deal leadership orientation preferred by academic department chairs (ADCs) of Educational Leadership or Administration programs at member colleges and universities of the University Council for Educational Administration (UCEA). A secondary purpose of the study was to examine how the preferred frame of the chairs…

  18. Institute of place making: A project by the chair of Landscape Architecture at the TU Delft. Oerol 2013: Sense of place

    NARCIS (Netherlands)

    Pouderoijen, M.T.; Piccinini, D.

    2013-01-01

    This booklet shows the results of a project developed by TU Delft in a Master elective course offered by the chair of Landscape Architecture: Landscape Architecture ON site, being part of Oerol Festival 2013. The aim of the project was to express the landscape of Terschelling into a temporarily proj

  19. 解析同构在座椅设计中的应用%The Application of Isomorphism in Chair Design

    Institute of Scientific and Technical Information of China (English)

    钱宇; 蔡文明

    2012-01-01

    分析了同构原理的内涵,并结合实例论述了同构原理对座椅设计的指导价值。通过分析座椅形态、结构、色彩、质感和肌理设计中同构原理的运用,从功能性、审美性和整体性等方面阐述了运用同构原理进行座椅设计的基本原则。对同构表现手法和座椅设计结合点的深入研究和探讨,有助于寻找座椅形态设计的方法,进而为产品的开发和创新铺路。%It analyzed the connotation of isomorphism,combined with examples,it elaborated the guidance value of isomorphism to chair design.Starting from the application of isomorphism to forms,structures,colors and textures in chair design,it explicated the guiding principles from the perspective of aesthetics and integrity.A profound study of the combination of isomorphism and chair design helps to find out ways to design chair shapes.Isomorphic principles are also conducive to breakthroughs and innovation in production.

  20. University Council for Educational Administration (UCEA) Academic Department Chairs' Self-Perceived Utilization of Bolman and Deal's Four-Frame Theoretical Model

    Science.gov (United States)

    Clark, Sonya L.

    2013-01-01

    The purpose of this study was to examine the Bolman and Deal leadership orientation preferred by academic department chairs (ADCs) of Educational Leadership or Administration programs at member colleges and universities of the University Council for Educational Administration (UCEA). A secondary purpose of the study was to examine how the…

  1. Prof. Wang Jie Met with the Chair of Board of Trustees and the Director General of International Maize and Wheat Improvement Center

    Institute of Scientific and Technical Information of China (English)

    Zhang Yongtao

    2007-01-01

    @@ On April 10, 2007, Prof. Wang Jie, Vice President of NSFC, met with the delegation from International Maize and Wheat Improvement Center (CIMMYT), headed by its Chair of Board of Trustees Prof. Lene Lange and the Director General Prof. Masa Iwanaga.

  2. Absolute and Relative Reliability of the Timed 'Up & Go' Test and '30second Chair-Stand' Test in Hospitalised Patients with Stroke

    DEFF Research Database (Denmark)

    Lyders Johansen, Katrine; Derby Stistrup, Rikke; Skibdal Schjøtt, Camilla

    2016-01-01

    OBJECTIVE: The timed 'Up & Go' test and '30second Chair-Stand' test are simple clinical outcome measures widely used to assess functional performance. The reliability of both tests in hospitalised stroke patients is unknown. The purpose was to investigate the relative and absolute reliability of ...

  3. The chromatin remodeller ATRX: a repeat offender in human disease.

    Science.gov (United States)

    Clynes, David; Higgs, Douglas R; Gibbons, Richard J

    2013-09-01

    The regulation of chromatin structure is of paramount importance for a variety of fundamental nuclear processes, including gene expression, DNA repair, replication, and recombination. The ATP-dependent chromatin-remodelling factor ATRX (α thalassaemia/mental retardation X-linked) has emerged as a key player in each of these processes. Exciting recent developments suggest that ATRX plays a variety of key roles at tandem repeat sequences within the genome, including the deposition of a histone variant, prevention of replication fork stalling, and the suppression of a homologous recombination-based pathway of telomere maintenance. Here, we provide a mechanistic overview of the role of ATRX in each of these processes, and propose how they may be connected to give rise to seemingly disparate human diseases.

  4. FIRE EVACUATION FROM HIGH-RISE BUILDINGS

    Directory of Open Access Journals (Sweden)

    Korol'chenko Aleksandr Yakovlevich

    2012-10-01

    Full Text Available The authors argue that no collapse of structures is likely in the event of a fire emergency in multistoried buildings, rather, other fire-related factors may endanger the lives of people inside high-rise buildings exposed to the fire emergency, including open fire, sparks, high ambient temperature, smoke and toxic combustion products, reduced concentration of oxygen, and combined influence of various factors. In case of fire, the temperature inside buildings reaches 1100 °С. It exceeds the temperature of the ambient air acceptable for humans by far (70 °С. The experiments demonstrate that combustion products contain hundreds of toxic chemical compounds. The most hazardous of them include carbon oxide, carbon dioxide, chloride and cyanic hydrogen, aldehydes and acrolein. The author provides the pattern of their influence on the human body. The smoke consists of unburned particles of carbon and aerosols. The size of particles fluctuates within 0.05-50 MMK. Smoke produces a physiological and psychological impact on human beings. It has been proven that dangerous fire factors emerge within the first five to ten minutes of the emergency situation. Evacuation is the principal method of safety assurance. However, the velocity of propagation of smoke and heat is so high that even if the fire prevention system is in operation, people may be blocked both on the floors that are exposed to the fire and those that escape its propagation. New evacuation and rescue methods are recommended by the author. Various ways and methods of use of life-saving facilities are also provided. Safe evacuation is feasible from buildings where the number of stories does not exceed 10- 12. During evacuation, high density human streams are formed inside buildings, therefore, the period of stay in a burning building is increased. The calculations have proven that a two-minute delay of evacuation converts into a safe evacuation of only 13-15% of people. Low reliability of

  5. Repeat duplex ultrasound scanning in suspected Deep Vein Thrombosis (DVT): putting the onus back on the referring clinician.

    Science.gov (United States)

    Renton, Bryan; Thiru, S; Griffin, C P

    2016-01-01

    Duplex scanning is utilised by many departments in the investigation of suspected DVT. NICE Guideline CG144 recommended repeat scanning for patients in whom the initial Wells score was 'likely' in the presence of a raised D-Dimer, following a normal first scan. Following implementation of this recommendation in our department there was a dramatic rise in the number of repeat scans being undertaken, all of which were negative for DVT. Introduction of an electronic message to the report, placing the onus back on the referring clinician to arrange repeat scan if deemed appropriate resulted in a fall in the number of scans being undertaken without impacting on patient outcome.

  6. 基于人机工程学的电脑椅设计%A Computer Chair Design Research Based on Ergonomics

    Institute of Scientific and Technical Information of China (English)

    马广韬; 张晨光; 佟怡伶

    2012-01-01

    目的 研究人体坐姿的生理特点和生理尺度,使设计的电脑椅适合人的生理结构,使用舒适、安全,提高工作效率.方法 以“人的因素”为主线,运用人体测量学、人机工程学,通过对电脑椅设计存在的缺陷进行研究和分析,进而探讨电脑椅的人机系统设计,改良设计方法.结果 依据人机工程学原理设计的电脑椅,改善了人体对电脑椅的各种需求,增加了舒适度,降低了职业病的发生,使操作人员达到满意的工作状态.结论 运用人机工程学原理能够分析目前电脑椅人机工程设计方面的特征和不足,解决普通电脑椅存在的问题,为解决同类问题给出理论指导.%Based on the study of physiological characteristics of human body and physical scale, this paper aims to design a computer chair suitable for human physiological structure and is able to make people feel comfortable and safe and in good mental state which improves work efficiency when in use. Giving priority to "the human factor",using metrology and ergonomics, the researchers have explored the computer chair man-machine system design and improved the design method through the research and analysis of the computer chair design defects. Through research and analysis,the computer chair, which is designed under the principle of ergonomics, can greatly improve the human body needs towards computer chairs, increase comfortable sensation,reduce occupational disease,and meet the satisfaction of the operation staff. The systematic study and analysis of the computer chair ergonomic design features and shortcomings can be preceded by the application of man-machine engineering principle and method to discuss the related theory, solve the problem of the computer chair and provide theoretical guidance for solving similar problems.

  7. Repeated predictable stress causes resilience against colitis-induced behavioral changes in mice

    Science.gov (United States)

    Hassan, Ahmed M.; Jain, Piyush; Reichmann, Florian; Mayerhofer, Raphaela; Farzi, Aitak; Schuligoi, Rufina; Holzer, Peter

    2014-01-01

    Inflammatory bowel disease is associated with an increased risk of mental disorders and can be exacerbated by stress. In this study which was performed with male 10-week old C57Bl/6N mice, we used dextran sulfate sodium (DSS)-induced colitis to evaluate behavioral changes caused by intestinal inflammation, to assess the interaction between repeated psychological stress (water avoidance stress, WAS) and colitis in modifying behavior, and to analyze neurochemical correlates of this interaction. A 7-day treatment with DSS (2% in drinking water) decreased locomotion and enhanced anxiety-like behavior in the open field test and reduced social interaction. Repeated exposure to WAS for 7 days had little influence on behavior but prevented the DSS-induced behavioral disturbances in the open field and SI tests. In contrast, repeated WAS did not modify colon length, colonic myeloperoxidase content and circulating proinflammatory cytokines, parameters used to assess colitis severity. DSS-induced colitis was associated with an increase in circulating neuropeptide Y (NPY), a rise in the hypothalamic expression of cyclooxygenase-2 mRNA and a decrease in the hippocampal expression of NPY mRNA, brain-derived neurotrophic factor mRNA and mineralocorticoid receptor mRNA. Repeated WAS significantly decreased the relative expression of corticotropin-releasing factor mRNA in the hippocampus. The effect of repeated WAS to blunt the DSS-evoked behavioral disturbances was associated with a rise of circulating corticosterone and an increase in the expression of hypothalamic NPY mRNA. These results show that experimental colitis leads to a particular range of behavioral alterations which can be prevented by repeated WAS, a model of predictable chronic stress, while the severity of colitis remains unabated. We conclude that the mechanisms underlying the resilience effect of repeated WAS involves hypothalamic NPY and the hypothalamic-pituitary-adrenal axis. PMID:25414650

  8. Repeated Predictable Stress Causes Resilience against Colitis-Induced Behavioral Changes in Mice

    Directory of Open Access Journals (Sweden)

    Ahmed M Hassan

    2014-11-01

    Full Text Available Inflammatory bowel disease is associated with an increased risk of mental disorders and can be exacerbated by stress. In this study which was performed with male 10-week old C57Bl/6N mice, we used dextran sulfate sodium (DSS-induced colitis to evaluate behavioral changes caused by intestinal inflammation, to assess the interaction between repeated psychological stress (water avoidance stress, WAS and colitis in modifying behavior, and to analyze neurochemical correlates of this interaction. A 7-day treatment with DSS (2 % in drinking water decreased locomotion and enhanced anxiety-like behavior in the open field test and reduced social interaction. Repeated exposure to WAS for 7 days had little influence on behavior but prevented the DSS-induced behavioral disturbances in the open field and social interaction tests. In contrast, repeated WAS did not modify colon length, colonic myeloperoxidase content and circulating proinflammatory cytokines, parameters used to assess colitis severity. DSS-induced colitis was associated with an increase in circulating neuropeptide Y (NPY, a rise in the hypothalamic expression of cyclooxygenase-2 mRNA and a decrease in the hippocampal expression of NPY mRNA, brain-derived neurotrophic factor mRNA and mineralocorticoid receptor mRNA. Repeated WAS significantly decreased the relative expression of corticotropin-releasing factor mRNA in the hippocampus. The effect of repeated WAS to blunt the DSS-evoked behavioral disturbances was associated with a rise of circulating corticosterone and an increase in the expression of hypothalamic NPY mRNA. These results show that experimental colitis leads to a particular range of behavioral alterations which can be prevented by repeated WAS, a model of predictable chronic stress, while the severity of colitis remains unabated. We conclude that the mechanisms underlying the resilience effect of repeated WAS involves hypothalamic NPY and the hypothalamic-pituitary-adrenal axis.

  9. Field Monitoring of Column Shortenings in a High-Rise Building during Construction

    Directory of Open Access Journals (Sweden)

    Hyo Seon Park

    2013-10-01

    Full Text Available The automatic monitoring of shortenings of vertical members in high-rise buildings under construction is a challenging issue in the high-rise building construction field. In this study, a practical system for monitoring column shortening in a high-rise building under construction is presented. The proposed monitoring system comprises the following components: (1 a wireless sensing system and (2 the corresponding monitoring software. The wireless sensing system comprises the sensors and energy-efficient wireless sensing units (sensor nodes, master nodes, and repeater nodes, which automate the processes for measuring the strains of vertical members and transmitting the measured data to the remote server. The monitoring software enables construction administrators to monitor real-time data collected by the server via an Internet connection. The proposed monitoring system is applied to actual 66-floor and 72-floor high-rise buildings under construction. The system enables automatic and real-time measurements of the shortening of vertical members, which can result in more precise construction.

  10. Triggering Process of Electromagnetic Ion Cyclotron Rising Tone Emissions in the Inner Magnetosphere

    Science.gov (United States)

    Shoji, M.; Omura, Y.

    2013-12-01

    Spacecraft observations and simulations show generation of coherent electromagnetic ion cyclotron (EMIC) triggered emissions with rising-tone frequencies. In the inner magnetosphere, the spontaneously triggered EMIC waves are generated by the energetic protons with large temperature anisotropy. We reproduced EMIC triggered emissions in the Earth's magnetosphere by real scale hybrid simulations with cylindrical magnetic geometry. We obtained spontaneously triggered nonlinear EMIC waves with rising frequencies in the H+ band of the EMIC dispersion relation. The proton holes in the phase space are formed. We have also derived the theoretical optimum wave amplitude for triggering process of the EMIC nonlinear wave growth. The optimum wave amplitude and the nonlinear transition time show a good agreement with the present simulation result. The nonlinear wave growth over a limited time forms a sub-packet structure of a rising tone emission. The formation process of a sub-packet is repeated because of a new triggering wave generated by the phase-organized protons, which are released from the previous sub-packet. Then the EMIC triggered emission is formed as a train of sub-packets generated at different rising frequencies.

  11. Understanding the Rise of African Business

    DEFF Research Database (Denmark)

    Jorem, Kaja Tvedten; Jeppesen, Søren; Hansen, Michael W.

    In light of recent enthusiasm over the African private sector, this paper reviews the existing empirical literature on successful African enterprises and proposes an analytical framework for understanding African firm success. Overall, it is argued that we need to develop an understanding...... of African firm strategy and performance that takes into account the specificities of the African business environment and African firm capabilities. The paper starts by juxtaposing the widespread pessimistic view of African business with more recent, optimistic studies on African firms’ performance....... The latter suggests that profound improvements in African business performance are indeed under way: with the private sector playing a more important role as an engine of growth, with the rise of a capable African entrepreneurial class, and with the emergence of dynamic and competitive African enterprises...

  12. Bubbles Rising Through a Soft Granular Material

    Science.gov (United States)

    Le Mestre, Robin; MacMinn, Chris; Lee, Sungyon

    2016-11-01

    Bubble migration through a soft granular material involves a strong coupling between the bubble dynamics and the deformation of the material. This is relevant to a variety of natural processes such as gas venting from sediments and gas exsolution from magma. Here, we study this process experimentally by injecting air bubbles into a quasi-2D packing of soft hydrogel beads and measuring the size, speed, and morphology of the bubbles as they rise due to buoyancy. Whereas previous work has focused on deformation resisted by intergranular friction, we focus on the previously inaccessible regime of deformation resisted by elasticity. At low confining stress, the bubbles are irregular and rounded, migrating via local rearrangement. At high confining stress, the bubbles become unstable and branched, migrating via pathway opening. The authors thank The Royal Society for support (International Exchanges Ref IE150885).

  13. Recent Results From MRO/HiRISE

    Science.gov (United States)

    McEwen, A. S.; Team, H. S.

    2008-12-01

    The High Resolution Imaging Science Experiment (HiRISE) on Mars Reconnaissance Orbiter (MRO) has acquired more than 7.8 Terapixels of Mars imaging since October 2006, covering less than 0.8% of the surface. Images are 5-6 km wide with 3-color coverage over the central 20%, and their scales usually range from 25-60 cm/pixel. More than 800 stereo pairs have been acquired and ~20 digital terrain models (DTMs) completed; these data have led to some of the most significant science results. New methods to measure and correct distortions due to pointing jitter facilitate topographic and change-detection studies at sub-meter scales. There are recent results concerning Noachian bedrock stratigraphy and megabreccia, fluvially- deposited fans in craters and in or near Valles Marineris, groundwater flow in fractures and porous media, quasi-periodic layering in polar and non-polar deposits, tectonic history of west Candor Chasm, geometry of clay-rich deposits near and within Mawrth Vallis, dynamics of flood lavas in the Cerberus Palus region, new evidence for pyroclastic deposits, columnar jointing in rapidly-cooled lava flows, recent collapse pits, evidence for water in well-preserved impact craters, newly-discovered large rayed craters, and glacial and periglacial processes. We are particularly interested in ongoing processes such as those driven by the wind, impact cratering, dust avalanches, icy avalanches on north polar scarps, relatively bright deposits on steep gullied slopes, and the especially dynamic seasonal processes over polar regions in the spring and summer. For landing sites (past, present, and future) HiRISE has acquired hundreds of large images and contributed to scientific and engineering studies.

  14. Demographical Differences in Perceptions of Leadership Practices for Department Chairs and Job Satisfaction of Faculty Members at a Historically Black University

    Directory of Open Access Journals (Sweden)

    Edwin Quinn Jr.

    2012-09-01

    Full Text Available The purpose of this quantitative study was to determine the leadership practices (Kouzes and Posner, 2002 of the department chairs as perceived by the faculty and the job satisfaction (Spector, 2007 of faculty members at a historically black university located in the State of Mississippi. The role of the gender and ethnicity of faculty members’ perceived leadership practices of department chairs and job satisfaction is explored. A total of 100 faculty responded to the study. An ANOVA test found that there is a significant difference in leadership practices of department chairs by faculty members between ethnicity: modeling the way (F = 242.529, p = .001, inspiring a shared vision (F = 289.658, p = .001, challenging the process (F = 386.177, p = .001, enabling others to act (F = 272.504, p = .001, and encouraging the heart (F = 339.685, p = .001. There is a significant difference in subscales of job satisfaction for faculty members between ethnicity: promotion (F = 12.953, p = .00, supervision (F = 1.819, p = .00, contingent rewards (F = 25.379, p = .00, operating procedures (F = 34.334, p = .00, co-workers (F = 34.406, p = .00, nature of work (F = 3.020, p = .054, and communication (F = 46.118, p = .00. There was not a significant difference in Leadership Practices of department chairs and Job Satisfaction of faculty members based on gender. The implications of the study resulted in gender differences and ethnicity having a statistical impact on the perceptions of leadership practices of department chairs and job satisfaction of faculty member. Future studies might expand the study to include more historically black university to gain a broader perception.

  15. Repeatability & Workability Evaluation of SIGMOD 2009

    KAUST Repository

    Manegold, Stefan

    2010-12-15

    SIGMOD 2008 was the first database conference that offered to test submitters\\' programs against their data to verify the repeatability of the experiments published [1]. Given the positive feedback concerning the SIGMOD 2008 repeatability initiative, SIGMOD 2009 modified and expanded the initiative with a workability assessment.

  16. Reward modulation of contextual cueing: Repeated context overshadows repeated target location.

    Science.gov (United States)

    Sharifian, Fariba; Contier, Oliver; Preuschhof, Claudia; Pollmann, Stefan

    2017-08-07

    Contextual cueing can be enhanced by reward. However, there is a debate if reward is associated with the repeated target-distractor configurations or with the repeated target locations that occur in both repeated and new displays. Based on neuroimaging evidence, we hypothesized that reward becomes associated with the target location only in new displays, but not in repeated displays, where the repeated target location is overshadowed by the more salient repeated target-distractor configuration. To test this hypothesis, we varied the reward value associated with the same target location in repeated and new displays. The results confirmed the overshadowing hypothesis in that search facilitation in repeated target-distractor configurations was modulated by the variable value associated with the target location. This effect was observed mainly in early learning.

  17. Melanoma Rates Rise in Some States, Fall in Others

    Science.gov (United States)

    ... page: https://medlineplus.gov/news/fullstory_162797.html Melanoma Rates Rise in Some States, Fall in Others ... THURSDAY, Dec. 29, 2016 (HealthDay News) -- Rates of melanoma cases and deaths are either rising or falling, ...

  18. Childhood experiences and repeated suicidal behavior

    DEFF Research Database (Denmark)

    Krarup, Gertrud; Nielsen, Bent; Rask, P

    1991-01-01

    The aim of this study was to elucidate the influence of various events in childhood on suicidal behavior in adult age. For this purpose, 99 patients admitted to the Department of Psychiatry of Odense University Hospital after making a suicide attempt were followed for 5 years, to register repeated...... suicidal behavior. The results showed that three fourths of the patients attempted suicide more than once (62% nonfatal and 14% fatal outcome). The sex distribution was about the same among the first-evers as among the repeaters. Most repeaters were younger people in their twenties and thirties......, and the first-evers on average were past the age of 40. Somewhat unexpectedly, significantly more repeaters than first-evers had grown up with both their parents. However, the results also showed that significantly more repeaters than first-evers had had an unhappy childhood. This indicates...

  19. UK 2009-2010 repeat station report

    Directory of Open Access Journals (Sweden)

    Thomas J.G. Shanahan

    2013-03-01

    Full Text Available The British Geological Survey is responsible for conducting the UK geomagnetic repeat station programme. Measurements made at the UK repeat station sites are used in conjunction with the three UK magnetic observatories: Hartland, Eskdalemuir and Lerwick, to produce a regional model of the local field each year. The UK network of repeat stations comprises 41 stations which are occupied at approximately 3-4 year intervals. Practices for conducting repeat station measurements continue to evolve as advances are made in survey instrumentation and as the usage of the data continues to change. Here, a summary of the 2009 and 2010 UK repeat station surveys is presented, highlighting the measurement process and techniques, density of network, reduction process and recent results.

  20. Validation of a Manually Oscillating Chair for In-The-Field Assessment of Dynamic Visual Acuity on Crewmembers Within Hours of Returning From Long-Duration Spaceflight

    Science.gov (United States)

    Kreutzberg, G. A.; Rosenberg, M. J. F.; Peters, B. T.; Reschke,M. F.

    2017-01-01

    Long-duration spaceflight results in sensorimotor adaptations, which cause functional deficits during gravitational transitions, such as landing on a planetary surface after long-duration microgravity exposure. Both the vestibular system and the central nervous system are affected by gravitational transitions. These systems are responsible for coordinating head and eye movements via the vestibulo-ocular reflex (VOR) and go through an adaptation period upon exposure to microgravity. Consequently, they must also re-adapt to Earth's gravitational environment upon landing. This re-adaptation causes decrements in gaze control and dynamic visual acuity, with crewmembers reporting oscillopsia and blurred vision caused by retinal slip, or the inability to keep an image focused on their retina. This is thought to drive motion sickness symptoms experienced by most crewmembers following landing. Retinal slip can be estimated by dynamic visual acuity (DVA); visual acuity while in motion. Previously, DVA has been assessed in the laboratory where subjects walked at 6.4 km/hr on a motorized treadmill. Using this method, Peters et al. (2011) found that DVA is worsened in astronauts by an average of 0.75 eye-chart lines one day after landing. However, it is believed that re-adaptation occurs quickly and that DVA might be worse immediately upon re-exposure to a gravitational environment. Since many crewmembers are unable to walk safely upon landing, it was necessary to develop a method for replicating the vertical head movements associated with walking. In addition, the use of a chair to imitate the head displacement caused by walking isolates eye-head interactions without allowing for trunk and lower-body compensation, as seen with treadmill walking (Mulavara & Bloomberg 2003). Therefore, a modality for assessing DVA in the field within a few hours of landing was developed. In this study, we validated the ability of a manually operated oscillating chair to reproduce the oscillatory

  1. Serum cardiac troponin T after repeated endurance exercise events.

    Science.gov (United States)

    Bonetti, A; Tirelli, F; Albertini, R; Monica, C; Monica, M; Tredici, G

    1996-05-01

    Recently Dr. Rowe made a hypothesis according to which small areas of myocardial necrosis can be caused by microvascular spasm, related to high catecholamine concentrations and other mechanisms, following extraordinary unremitting endurance exercises or due to the cumulative effect of several endurance events. It was this last suggestion which prompted us to investigate 25 top cyclists, taking part in the 77th Giro d'Italia. Blood samples were obtained the day before the start of the competition and once a week thereafter until the end. We measured myoglobin, lactic dehydrogenase, total creatine kinase, creatine kinase isoenzyme MB and serum cardiac troponin T (Tn-T), a highly sensitive and specific method for the detection of myocardial injury. While at measuring time points which followed we found a significant increase in the serum indicators of muscle damage, compared with their values at the beginning of the race, creatine kinase isoenzyme MB did not rise significantly and cardiac Tn-T was found in the serum of only 5 athletes, repeatedly in some cases, but always below the cut off values considered as indicating myocardial ischemia. On the basis of the behaviour of creatine kinase isoenzyme MB and, above all, of cardiac Tn-T, we can conclude that heavy endurance exercises, repeated daily for 22 days, as was the case in our study, do not seem able to produce, in top athletes, permanent heart damage by means of acute myocardial injury.

  2. Sensitivity of air quality simulation to smoke plume rise

    Science.gov (United States)

    Yongqiang Liu; Gary Achtemeier; Scott Goodrick

    2008-01-01

    Plume rise is the height smoke plumes can reach. This information is needed by air quality models such as the Community Multiscale Air Quality (CMAQ) model to simulate physical and chemical processes of point-source fire emissions. This study seeks to understand the importance of plume rise to CMAQ air quality simulation of prescribed burning to plume rise. CMAQ...

  3. Scientific basis for the selection of absorbent underpads that remain securely attached to underlying bed or chair.

    Science.gov (United States)

    Edlich, Richard F; Winters, Kathryne L; Long, William B; Gubler, K Dean

    2006-01-01

    The occurrence of pressure ulcers in patients is very high in certain high-risk groups. These special high-risk groups include elderly patients, patients with spinal cord injuries, or any individual with an impaired ability to reposition. Prevention of pressure ulcers is by far the best treatment of this condition, warranting certain interventions and preventive measures. One major risk factor to be minimized is the exposure of skin to moisture. Underpads are often used to protect the skin of patients who are incontinent. These products effectively absorb moisture and present a quick-drying surface to the skin. The construction of an underpad should accomplish three goals. First, its backing should have a low coefficient of friction to prevent frictional skin injuries. Second, an inner absorbent core should rapidly contain moisture and disseminate it throughout the entire pad. Third, the core and coverstock should successfully work together to retain moisture and prevent wet-back or fluid return. The purpose of this study was to determine the performance of three commercially available underpads in reducing the development of pressure sores in patients at high risk. In this study we selected three underpads that could be securely attached to either the underlying bed or the chair. The three performance parameters examined were absorbent capacity, wetback prevention, and holding security of the underpads. Measurements of these performance parameters can be easily replicated in other laboratories. The results of these studies provide a scientific basis for selecting and purchasing an underpad to prevent pressure ulcers in patients. In this comprehensive evaluation, we assess an absorbent underpad with polyethylene flaps and two absorbent underpads with adhesive. The absorbent capacity results showed Tranquility SlimLine Peach Sheet to be the most absorbent. The wet-back results showed Tranquility SlimLine Peach Sheet to be the only underpad with no wet-back, with no

  4. Rising expectations: access to biomedical information.

    Science.gov (United States)

    Lindberg, D A B; Humphreys, B L

    2008-01-01

    To provide an overview of the expansion in public access to electronic biomedical information over the past two decades, with an emphasis on developments to which the U.S. National Library of Medicine contributed. Review of the increasingly broad spectrum of web-accessible genomic data, biomedical literature, consumer health information, clinical trials data, and images. The amount of publicly available electronic biomedical information has increased dramatically over the past twenty years. Rising expectations regarding access to biomedical information were stimulated by the spread of the Internet, the World Wide Web, advanced searching and linking techniques. These informatics advances simplified and improved access to electronic information and reduced costs, which enabled inter-organizational collaborations to build and maintain large international information resources and also aided outreach and education efforts The demonstrated benefits of free access to electronic biomedical information encouraged the development of public policies that further increase the amount of information available. Continuing rapid growth of publicly accessible electronic biomedical information presents tremendous opportunities and challenges, including the need to ensure uninterrupted access during disasters or emergencies and to manage digital resources so they remain available for future generations.

  5. China's rising hydropower demand challenges water sector.

    Science.gov (United States)

    Liu, Junguo; Zhao, Dandan; Gerbens-Leenes, P W; Guan, Dabo

    2015-07-09

    Demand for hydropower is increasing, yet the water footprints (WFs) of reservoirs and hydropower, and their contributions to water scarcity, are poorly understood. Here, we calculate reservoir WFs (freshwater that evaporates from reservoirs) and hydropower WFs (the WF of hydroelectricity) in China based on data from 875 representative reservoirs (209 with power plants). In 2010, the reservoir WF totaled 27.9 × 10(9) m(3) (Gm(3)), or 22% of China's total water consumption. Ignoring the reservoir WF seriously underestimates human water appropriation. The reservoir WF associated with industrial, domestic and agricultural WFs caused water scarcity in 6 of the 10 major Chinese river basins from 2 to 12 months annually. The hydropower WF was 6.6 Gm(3) yr(-1) or 3.6 m(3) of water to produce a GJ (10(9) J) of electricity. Hydropower is a water intensive energy carrier. As a response to global climate change, the Chinese government has promoted a further increase in hydropower energy by 70% by 2020 compared to 2012. This energy policy imposes pressure on available freshwater resources and increases water scarcity. The water-energy nexus requires strategic and coordinated implementations of hydropower development among geographical regions, as well as trade-off analysis between rising energy demand and water use sustainability.

  6. A new case of semicircular lipoatrophy associated with repeated external microtraumas and review of the literature.

    Science.gov (United States)

    Gómez-Espejo, C; Pérez-Bernal, A; Camacho-Martínez, F

    2005-07-01

    We present a new case of semicircular lipoatrophy whose lesions disappeared after 2 months of avoiding a repeated trauma in that area. It seems that this is the only associated aetiological factor, and this entity is perhaps a consequence of certain postural habits. The repeated microtraumas would damage the fatty tissue giving rise to the histopathological findings described, which are compatible with traumatic panniculitis. In conclusion, repeated microtraumas may be the aetiological factor in these cutaneous lesions. Other data in favour of this hypothesis are the disappearance of the lesions after avoiding the mechanical trauma, the fact that there were other affected people at work, and that this factor has also been identified in the majority of cases reported previously.

  7. The child accident repeater: a review.

    Science.gov (United States)

    Jones, J G

    1980-04-01

    The child accident repeater is defined as one who has at least three accidents that come to medical attention within a year. The accident situation has features in common with those of the child who has a single accident through simple "bad luck", but other factors predispose him to repeated injury. In the child who has a susceptible personality, a tendency for accident repetition may be due to a breakdown in adjustment to a stressful environment. Prevention of repeat accidents should involve the usual measures considered appropriate for all children as well as an attempt to provide treatment of significant maladjustment and modification of a stressful environment.

  8. Absolute and Relative Reliability of the Timed 'Up & Go' Test and '30second Chair-Stand' Test in Hospitalised Patients with Stroke.

    Science.gov (United States)

    Lyders Johansen, Katrine; Derby Stistrup, Rikke; Skibdal Schjøtt, Camilla; Madsen, Jacqueline; Vinther, Anders

    2016-01-01

    The timed 'Up & Go' test and '30second Chair-Stand' test are simple clinical outcome measures widely used to assess functional performance. The reliability of both tests in hospitalised stroke patients is unknown. The purpose was to investigate the relative and absolute reliability of both tests in patients admitted to an acute stroke unit. Sixty-two patients (men, n = 41) attended two test sessions separated by a one hours rest. Intraclass correlation coefficients (ICC2,1) were calculated to assess relative reliability. Absolute reliability was expressed as Standard Error of Measurement (with 95% certainty-SEM95) and Smallest Real Difference (SRD) and as percentage of their respective means if heteroscedasticity was observed in Bland Altman plots (SEM95% and SRD%). ICC values for interrater reliability were 0.97 and 0.99 for the timed 'Up & Go' test and 0.88 and 0.94 for '30second Chair-Stand' test, respectively. ICC values for intrarater reliability were 0.95 and 0.96 for the timed 'Up & Go' test and 0.87 and 0.91 for '30second Chair-Stand' test, respectively. Heteroscedasticity was observed in the timed 'Up & Go' test. Interrater SEM95% ranged from 9.8% to 14.2% with corresponding SRD% of 13.9-20.1%. Intrarater SEM95% ranged from 15.8% to 18.7% with corresponding SRD% of 22.3-26.5%. For '30second Chair-Stand' test interrater SEM95 ranged between 1.5 and 1.9 repetitions with corresponding SRD of 2 and 3 and intrarater SEM95 ranged between 1.8 and 2.0 repetitions with corresponding SRD values of 3. Excellent reliability was observed for the timed 'Up & Go' test and the '30second Chair-Stand' test in hospitalised stroke patients. The thresholds to detect a real change in performance were 18.7% for the timed 'Up & Go' test and 2.0 repetitions for the '30second Chair-Stand' in groups of patients and 26.5% and 3 repetitions in individual patients, respectively.

  9. Absolute and Relative Reliability of the Timed ‘Up & Go’ Test and ‘30second Chair-Stand’ Test in Hospitalised Patients with Stroke

    Science.gov (United States)

    Lyders Johansen, Katrine; Derby Stistrup, Rikke; Skibdal Schjøtt, Camilla; Madsen, Jacqueline; Vinther, Anders

    2016-01-01

    Objective The timed ‘Up & Go’ test and ‘30second Chair-Stand’ test are simple clinical outcome measures widely used to assess functional performance. The reliability of both tests in hospitalised stroke patients is unknown. The purpose was to investigate the relative and absolute reliability of both tests in patients admitted to an acute stroke unit. Methods Sixty-two patients (men, n = 41) attended two test sessions separated by a one hours rest. Intraclass correlation coefficients (ICC2,1) were calculated to assess relative reliability. Absolute reliability was expressed as Standard Error of Measurement (with 95% certainty—SEM95) and Smallest Real Difference (SRD) and as percentage of their respective means if heteroscedasticity was observed in Bland Altman plots (SEM95% and SRD%). Results ICC values for interrater reliability were 0.97 and 0.99 for the timed ‘Up & Go’ test and 0.88 and 0.94 for ‘30second Chair-Stand’ test, respectively. ICC values for intrarater reliability were 0.95 and 0.96 for the timed ‘Up & Go’ test and 0.87 and 0.91 for ‘30second Chair-Stand’ test, respectively. Heteroscedasticity was observed in the timed ‘Up & Go’ test. Interrater SEM95% ranged from 9.8% to 14.2% with corresponding SRD% of 13.9–20.1%. Intrarater SEM95% ranged from 15.8% to 18.7% with corresponding SRD% of 22.3–26.5%. For ‘30second Chair-Stand’ test interrater SEM95 ranged between 1.5 and 1.9 repetitions with corresponding SRD of 2 and 3 and intrarater SEM95 ranged between 1.8 and 2.0 repetitions with corresponding SRD values of 3. Conclusion Excellent reliability was observed for the timed ‘Up & Go’ test and the ‘30second Chair-Stand’ test in hospitalised stroke patients. The thresholds to detect a real change in performance were 18.7% for the timed ‘Up & Go’ test and 2.0 repetitions for the ‘30second Chair-Stand’ in groups of patients and 26.5% and 3 repetitions in individual patients, respectively. PMID:27798686

  10. Historical Perspective on the Rise and Fall and Rise of Antibiotics and Human Weight Gain.

    Science.gov (United States)

    Podolsky, Scott H

    2017-01-17

    In recent medical and popular literature, audiences have been asked to consider whether antibiotics have contributed to the rising obesity epidemic. Prominent magazines have stated that weight may be adversely affected by antibiotics that destroy existing microbiomes and replace them with less helpful ones. However, there is a long history of efforts to investigate the relationship between antibiotics and human weight gain. In the early 1950s, amid initial findings that low doses of antibiotics served as growth promoters in animal livestock, investigators explored the role of antibiotics as magic bullets for human malnutrition. Nevertheless, early enthusiasm was tempered by controlled studies showing that antibiotics did not serve as useful, nonspecific growth promoters for humans. In subsequent decades, against the backdrop of rising concern over antibiotic resistance, investigators studying the role of antibiotics in acute malnutrition have had to navigate a more complicated public health calculus. In a related historical stream, scientists since the 1910s have explored the role of the intestinal microflora in human health. By the 2000s, as increasing resources and more sophisticated tools were devoted to understanding the microbiome (a term coined in 2001), attention would turn to the role of antibiotics and the intestinal microflora in the rising obesity epidemic. Despite scientific and commercial enthusiasm, easy answers (whether about antibiotics or probiotics) have again given way to an appreciation for the complexity of human growth. History encourages caution about our hopes for simplistic answers for presumed "fat drugs" and slimming probiotics alike.

  11. Perspectives of patients with disabilities on the accessibility of medical equipment: examination tables, imaging equipment, medical chairs, and weight scales.

    Science.gov (United States)

    Story, Molly Follette; Schwier, Erin; Kailes, June Isaacson

    2009-10-01

    In a prior survey, patients with disabilities reported difficulty using many common types of medical equipment. The purpose of this study was to conduct focus groups to explore in greater detail the most common difficulties mentioned by survey participants in order to identify critical issues related to accessibility and usability and to inform subsequent research. Participants of eight focus groups discussed medical equipment accessibility and safety issues experienced when using or attempting to access four specific categories of medical devices: examination tables, imaging equipment, medical chairs, and weight scales. Content of the transcript of each focus group was categorized according to five major themes: safety issues, equipment issues, health care provider issues, patient issues, and environmental issues. The results were then aggregated. The focus group participants reported that characteristics of the equipment's contact surfaces could cause difficulty and discomfort. Participants commented on lack of physical support for patients with disabilities to transfer their bodies onto and off the equipment and lack of support to achieve and maintain body positions while on the equipment. Wheelchair scales were reported as rarely available, and scales without voice output were inaccessible to blind individuals. Health care provider issues and patient issues are discussed in relation to the accessibility and safety of the equipment. Some types of medical devices and technologies present substantial barriers for some medical patients with disabilities, which may negatively affect their access to health care. Recommendations for improved designs are provided to enhance medical equipment accessibility and safety.

  12. Proposal for a universal measurement system for school chairs and desks for children from 6 to 10 years old.

    Science.gov (United States)

    Carneiro, Vitor; Gomes, Ângela; Rangel, Bárbara

    2017-01-01

    In a primary education classroom of any country, children of the same age have very different statures, reaching variations of 200 mm (Gonçalves, 2012). However, the school furniture provided is not suitable or adaptable to these differences. Designing school furniture able to respond to these variations is, therefore, a challenge for ergonomics and design in a global market. It is clearly not viable for industries to adapt productions for each country. When competitiveness and limitation of resources are essential for the viability of any product it becomes essential to find a universal system adapted to the requisites of any country. Taking as prescription measure the popliteal height obtained from the data of different countries, a universal measurement system for the school chair and desk set is proposed, combining the ellipse methodology used by Molenbroek et al. (2003) and the (mis)match equations mentioned by Castellucci et al. (2014b). From the results obtained, it can be concluded that only 5 sizes are needed to implement this new measurement system of evolutionary school furniture for the primary education classroom. Copyright © 2016 Elsevier Ltd. All rights reserved.

  13. Targeting the gut to treat obesity and its metabolic comorbidities: focus on bariatric surgery - view from the chair.

    Science.gov (United States)

    Carpentier, A C

    2016-12-01

    Over the past decade, bariatric surgery emerged as the most effective treatment modality for obesity and its complications, especially type 2 diabetes. Initially introduced on the basis of their capacity to restrict food intake and/or induce dietary fat malabsorption, the current bariatric surgery procedures result in many more physiological changes that may also partly explain their potent and sustained anti-obesity and anti-diabetic effects. In the session 2 of the 17th International Symposium of the Université Laval Research Chair in Obesity, outstanding speakers have provided insight into novel clinical and pathophysiological aspects in bariatric surgery. Dr Blandine Laferrère discussed the growing body of evidence implicating incretin hormones in the anti-diabetic effects of bariatric surgery and Dr Hans-Rudolf Berthoud explored emerging evidence suggesting that bariatric surgery may reset the defended body mass set point. As data are rapidly accruing about the beneficial effects of bariatric surgery, these procedures not only take a greater place in clinical practice, but they also offer outstanding occasions to peek into the intricate and complex links between diet and gastrointestinal track, and obesity and its complications.

  14. Orthostatic Dysregulation during Postural Change on the Dental Chair and Intraoperative Monitoring by Heart Rate Variability Analysis

    Directory of Open Access Journals (Sweden)

    Yukihiro Momota

    2014-01-01

    Full Text Available This is the first case report of orthostatic dysregulation (OD manifested during postural change on the dental chair and intraoperatively monitored by heart rate variability (HRV analysis. OD-associated autonomic dysfunction is induced by postural changes and easily leads to disturbance in circulatory dynamics; however, most dental practices have not yet realized the importance of managing OD. We measured autonomic activity in a patient with OD during dental therapy and assessed the clinical significance of HRV analysis for OD. The patient was a 17-year-old Japanese female. She was diagnosed with impacted wisdom teeth and had no previous history of a distinct systemic disease. A surgical procedure to extract the teeth was safely performed under both local anesthesia and sedation with nitrous oxide and midazolam. After the surgery, her postural change to sitting induced orthostatic hypotension. HRV variables showed parasympathetic dominance due to the upright position. Subsequently, her posture was returned to supine, and atropine sulfate administration for the immediate treatment of OD returned her blood pressure to normal levels. HRV variables showed relative sympathetic dominance due to an atropine-derived parasympathetic blockade. HRV analysis revealed OD-associated autonomic dysfunction and should become a standard tool for safe and secure dental management of OD.

  15. The Moral Maturity of Repeater Delinquents.

    Science.gov (United States)

    Petronio, Richard J.

    1980-01-01

    Differences in moral development (as conceived by Kohlberg) were examined in a sample of delinquent teenagers. The repeater group was not found, as had been hypothesized, to be lower on moral maturity than those who engaged in less delinquency. (GC)

  16. Star repeaters for fiber optic links.

    Science.gov (United States)

    McMahon, D H; Gravel, R L

    1977-02-01

    A star repeater combines the functions of a passive star coupler and a signal regenerating amplifier. By more effectively utilizing the light power radiated by a light emitting diode, the star repeater can, when used with small diameter channels, couple as much power to all receivers of a multiterminal link as would be coupled to the single receiver of a simple point-to-point link.

  17. Mathematical modeling of the Phoenix Rising pathway.

    Directory of Open Access Journals (Sweden)

    Chad Liu

    2014-02-01

    Full Text Available Apoptosis is a tightly controlled process in mammalian cells. It is important for embryogenesis, tissue homoeostasis, and cancer treatment. Apoptosis not only induces cell death, but also leads to the release of signals that promote rapid proliferation of surrounding cells through the Phoenix Rising (PR pathway. To quantitatively understand the kinetics of interactions of different molecules in this pathway, we developed a mathematical model to simulate the effects of various changes in the PR pathway on the secretion of prostaglandin E2 (PGE2, a key factor for promoting cell proliferation. These changes include activation of caspase 3 (C3, caspase 7 (C7, and nuclear factor κB (NFκB. In addition, we simulated the effects of cyclooxygenase-2 (COX2 inhibition and C3 knockout on the level of secreted PGE2. The model predictions on PGE2 in MEF and 4T1 cells at 48 hours after 10-Gray radiation were quantitatively consistent with the experimental data in the literature. Compared to C7, the model predicted that C3 activation was more critical for PGE2 production. The model also predicted that PGE2 production could be significantly reduced when COX2 expression was blocked via either NFκB inactivation or treatment of cells with exogenous COX2 inhibitors, which led to a decrease in the rate of conversion from arachidonic acid to prostaglandin H2 in the PR pathway. In conclusion, the mathematical model developed in this study yielded new insights into the process of tissue regrowth stimulated by signals from apoptotic cells. In future studies, the model can be used for experimental data analysis and assisting development of novel strategies/drugs for improving cancer treatment or normal tissue regeneration.

  18. The rise and fall of gluten!

    Science.gov (United States)

    Aziz, Imran; Branchi, Federica; Sanders, David S

    2015-08-01

    Mankind has existed for 2·5 million years but only in the last 10,000 years have we been exposed to wheat. Wheat was first cultivated in the Fertile Crescent (South Western Asia) with a farming expansion that lasted from about 9000BC to 4000BC. Thus it could be considered that wheat (and gluten) is a novel introduction to man's diet! Prior to 1939 the rationing system had already been devised. This led to an imperative to try to increase agricultural production. Thus it was agreed in 1941 that there was a need to establish a Nutrition Society. The very roots of the society were geared towards necessarily increasing the production of wheat. This goal was achieved and by the end of the 20th century, global wheat output had expanded 5-fold. Perhaps as a result the epidemiology of coeliac disease (CD) or gluten sensitive enteropathy has changed. CD is a state of heightened immunological responsiveness to ingested gluten in genetically susceptible individuals. CD now affects 1 % or more of all adults, for which the treatment is a strict lifelong gluten-free diet. However, there is a growing body of evidence to show that a far greater proportion of individuals without coeliac disease are taking a gluten-free diet of their own volition. This clinical entity has been termed non-coeliac gluten sensitivity (NCGS), although the condition is fraught with complexities due to overlap with other gluten-based constituents that can also trigger similar clinical symptoms. This review will explore the relationship between gluten, the rising prevalence of modern coeliac disease, and the new entity of NCGS along with its associated uncertainties.

  19. Computational Fluid Dynamics of rising droplets

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Matthew [Lake Superior State University; Francois, Marianne M. [Los Alamos National Laboratory

    2012-09-05

    The main goal of this study is to perform simulations of droplet dynamics using Truchas, a LANL-developed computational fluid dynamics (CFD) software, and compare them to a computational study of Hysing et al.[IJNMF, 2009, 60:1259]. Understanding droplet dynamics is of fundamental importance in liquid-liquid extraction, a process used in the nuclear fuel cycle to separate various components. Simulations of a single droplet rising by buoyancy are conducted in two-dimensions. Multiple parametric studies are carried out to ensure the problem set-up is optimized. An Interface Smoothing Length (ISL) study and mesh resolution study are performed to verify convergence of the calculations. ISL is a parameter for the interface curvature calculation. Further, wall effects are investigated and checked against existing correlations. The ISL study found that the optimal ISL value is 2.5{Delta}x, with {Delta}x being the mesh cell spacing. The mesh resolution study found that the optimal mesh resolution is d/h=40, for d=drop diameter and h={Delta}x. In order for wall effects on terminal velocity to be insignificant, a conservative wall width of 9d or a nonconservative wall width of 7d can be used. The percentage difference between Hysing et al.[IJNMF, 2009, 60:1259] and Truchas for the velocity profiles vary from 7.9% to 9.9%. The computed droplet velocity and interface profiles are found in agreement with the study. The CFD calculations are performed on multiple cores, using LANL's Institutional High Performance Computing.

  20. Rising cost of anticancer drugs in Australia.

    Science.gov (United States)

    Karikios, D J; Schofield, D; Salkeld, G; Mann, K P; Trotman, J; Stockler, M R

    2014-05-01

    Anticancer drugs are often expensive and are contributing to the growing cost of cancer care. Concerns have been raised about the effect rising costs may have on availability of new anticancer drugs. This study aims to determine the recent changes in the costs of anticancer drugs in Australia. Publicly available expenditure and prices paid by the Australian Pharmaceutical Benefits Scheme (PBS) for anticancer drugs from 2000 to 2012 were reviewed. The measures used to determine changes in cost were total PBS expenditure and average price paid by the PBS per prescription for anticancer drugs and for all PBS listed drugs. An estimated monthly price paid for newly listed anticancer drugs was also calculated. Annual PBS expenditure on anticancer drugs rose from A$65 million in 1999-2000 to A$466 million in 2011-2012; an average increase of 19% per annum. The average price paid by the PBS per anticancer drug prescription, adjusted for inflation, increased 133% from A$337 to A$786. The real average annual increase in the price per anticancer drug prescription was more than double that for all other PBS drugs combined (7.6% vs 2.8%, difference 4.8%, 95% confidence interval -0.4% to 10.1%, P = 0.07). The median price for a month's treatment of the new anticancer drugs listed was A$4919 (range A$1003 to A$12 578, 2012 prices). PBS expenditure and the price of anticancer drugs in Australia rose substantially from 2000 to 2012. Dealing with these burgeoning costs will be a major challenge for our health system and for those affected by cancer. © 2014 The Authors; Internal Medicine Journal © 2014 Royal Australasian College of Physicians.

  1. Rising Food Insecurity: Dimensions in Farm Households

    Directory of Open Access Journals (Sweden)

    Okezie C. Austin

    2011-01-01

    Full Text Available Problem statement: Nigeria runs the risk of slowing further progress toward the achievement of MDG-1 to eradicate extreme hunger and poverty; the fourth goal, to reduce child mortality since over 30% of child deaths are attributable to malnutrition and the fifth goal relating to reduction in maternal mortality. This study evaluated the manifestation of food insecurity in households in Abia State, Nigeria. Approach: Systematic sampling was adopted in selecting households from the three geopolitical zones in the state. Primary and secondary data were used in the study. Data collection involved the use of structured questionnaires. Food intake, height and weight measures of children were taken Data analysis in involved the use of qualitative and quantitative methods. Results: Domestic food production is increasing but demand remained above production. The shortfall along with food import is on the increase. The composite consumer price index for food has continued to rise over the years. Logistic results show that income significantly reduced exposure to food insecurity while household size was an important determinant of food security. Children were more exposed to the incidence of growth retardation and stunting with increasing household size. Birth order increases the incidence of stunting. As more children come into the family there is increasing marginalization of the subsequent ones. Conclusion: Food insecurity is a developmental challenge in Nigeria. The country is characterized by high food imports and declining productivity of agriculture. Malnutrition is widespread especially among children in rural Nigeria. The study recommends family planning education to stern the over bloated population.

  2. Digital repeat analysis; setup and operation.

    Science.gov (United States)

    Nol, J; Isouard, G; Mirecki, J

    2006-06-01

    Since the emergence of digital imaging, there have been questions about the necessity of continuing reject analysis programs in imaging departments to evaluate performance and quality. As a marketing strategy, most suppliers of digital technology focus on the supremacy of the technology and its ability to reduce the number of repeats, resulting in less radiation doses given to patients and increased productivity in the department. On the other hand, quality assurance radiographers and radiologists believe that repeats are mainly related to positioning skills, and repeat analysis is the main tool to plan training needs to up-skill radiographers. A comparative study between conventional and digital imaging was undertaken to compare outcomes and evaluate the need for reject analysis. However, digital technology still being at its early development stages, setting a credible reject analysis program became the major task of the study. It took the department, with the help of the suppliers of the computed radiography reader and the picture archiving and communication system, over 2 years of software enhancement to build a reliable digital repeat analysis system. The results were supportive of both philosophies; the number of repeats as a result of exposure factors was reduced dramatically; however, the percentage of repeats as a result of positioning skills was slightly on the increase for the simple reason that some rejects in the conventional system qualifying for both exposure and positioning errors were classified as exposure error. The ability of digitally adjusting dark or light images reclassified some of those images as positioning errors.

  3. Quantum Key Distribution over Probabilistic Quantum Repeaters

    CERN Document Server

    Amirloo, Jeyran; Majedi, A Hamed

    2010-01-01

    A feasible route towards implementing long-distance quantum key distribution (QKD) systems relies on probabilistic schemes for entanglement distribution and swapping as proposed in the work of Duan, Lukin, Cirac, and Zoller (DLCZ) [Nature 414, 413 (2001)]. Here, we calculate the conditional throughput and fidelity of entanglement for DLCZ quantum repeaters, by accounting for the DLCZ self-purification property, in the presence of multiple excitations in the ensemble memories as well as loss and other sources of inefficiency in the channel and measurement modules. We then use our results to find the generation rate of secure key bits for QKD systems that rely on DLCZ quantum repeaters. We compare the key generation rate per logical memory employed in the two cases of with and without a repeater node. We find the cross-over distance beyond which the repeater system outperforms the non-repeater one. That provides us with the optimum inter-node distancing in quantum repeater systems. We also find the optimal exci...

  4. Remarkable selective constraints on exonic dinucleotide repeats.

    Science.gov (United States)

    Haasl, Ryan J; Payseur, Bret A

    2014-09-01

    Long dinucleotide repeats found in exons present a substantial mutational hazard: mutations at these loci occur often and generate frameshifts. Here, we provide clear and compelling evidence that exonic dinucleotides experience strong selective constraint. In humans, only 18 exonic dinucleotides have repeat lengths greater than six, which contrasts sharply with the genome-wide distribution of dinucleotides. We genotyped each of these dinucleotides in 200 humans from eight 1000 Genomes Project populations and found a near-absence of polymorphism. More remarkably, divergence data demonstrate that repeat lengths have been conserved across the primate phylogeny in spite of what is likely considerable mutational pressure. Coalescent simulations show that even a very low mutation rate at these loci fails to explain the anomalous patterns of polymorphism and divergence. Our data support two related selective constraints on the evolution of exonic dinucleotides: a short-term intolerance for any change to repeat length and a long-term prevention of increases to repeat length. In general, our results implicate purifying selection as the force that eliminates new, deleterious mutants at exonic dinucleotides. We briefly discuss the evolution of the longest exonic dinucleotide in the human genome--a 10 x CA repeat in fibroblast growth factor receptor-like 1 (FGFRL1)--that should possess a considerably greater mutation rate than any other exonic dinucleotide and therefore generate a large number of deleterious variants. © 2014 The Author(s). Evolution © 2014 The Society for the Study of Evolution.

  5. Dynamic combinatorial libraries of artificial repeat proteins.

    Science.gov (United States)

    Eisenberg, Margarita; Shumacher, Inbal; Cohen-Luria, Rivka; Ashkenasy, Gonen

    2013-06-15

    Repeat proteins are found in almost all cellular systems, where they are involved in diverse molecular recognition processes. Recent studies have suggested that de novo designed repeat proteins may serve as universal binders, and might potentially be used as practical alternative to antibodies. We describe here a novel chemical methodology for producing small libraries of repeat proteins, and screening in parallel the ligand binding of library members. The first stage of this research involved the total synthesis of a consensus-based three-repeat tetratricopeptide (TPR) protein (~14 kDa), via sequential attachment of the respective peptides. Despite the effectiveness of the synthesis and ligation steps, this method was found to be too demanding for the production of proteins containing variable number of repeats. Additionally, the analysis of binding of the individual proteins was time consuming. Therefore, we designed and prepared novel dynamic combinatorial libraries (DCLs), and show that their equilibration can facilitate the formation of TPR proteins containing up to eight repeating units. Interestingly, equilibration of the library building blocks in the presence of the biologically relevant ligands, Hsp90 and Hsp70, induced their oligomerization into forming more of the proteins with large recognition surfaces. We suggest that this work presents a novel simple and rapid tool for the simultaneous screening of protein mixtures with variable binding surfaces, and for identifying new binders for ligands of interest.

  6. Evolution of Research into the Management of Family Businesses that are Part of the Instituto de la Empresa Familiar Network of Chairs (1992-2016

    Directory of Open Access Journals (Sweden)

    José Casillas-Bueno

    2017-07-01

    Full Text Available The family business field of study has grown considerably in recent years in Spain. In fact, it is no exaggeration to say that twenty years ago there was barely any research in this field. In 1992, exactly 25 years ago, a group of family entrepreneurs founded the Instituto de la Empresa Familiar (IEF. IEF created the Chair in Family Business at Spanish universities to foster its inclusion in Business Administration syllabuses and promote its research by Spanish academics. This paper analyses the evolution of research into family businesses carried out by academics who are part of the IEF Network of Chairs, both at international and management level. To do this, the ISI Web of Knowledge database and Scopus were used as sources of information.

  7. R. A. FISHER, LANCELOT HOGBEN, AND THE 'COMPETITION' FOR THE CHAIR OF SOCIAL BIOLOGY AT THE LONDON SCHOOL OF ECONOMICS IN 1930: CORRECTING THE LEGEND.

    Science.gov (United States)

    Tabery, James; Sarkar, Sahotra

    2015-12-20

    From 1930 to 1937 Lancelot Hogben FRS occupied the Chair of Social Biology at the London School of Economics and Political Science. According to standard histories of this appointment, he and R. A. Fisher FRS both applied for the position, but Hogben was selected over Fisher. The episode has received attention in large part because of the later prominence of the two figures involved. The surviving archival records, however, tell a remarkably different story. Neither Fisher nor Hogben was ever an official candidate for the chair. Indeed, Fisher seems not to have applied for the position at all, and Hogben was approached only behind the scenes of the official search. The purpose of this paper is to correct and complete the history of this episode.

  8. A Clinical Experience of Dental Treatment under Ambulatory General Anesthesia for A Disabled Patient Who Accepts Only One Favorite Dental Chair

    OpenAIRE

    佐藤, 潤; 川合, 宏仁; 山崎, 信也; 相澤, 徳久; 島村, 和宏; 鈴木, 康生; サトウ, ジュン; カワイ, ヒロヨシ; ヤマザキ, シンヤ; アイザワ, ノリヒサ; シマムラ, カズヒロ; スズキ, ヤスオ; Jun, Sato; Hiroyoshi, KAWAAI; Shinya, YAMAZAKI

    2007-01-01

    In our hospital, we have many cases of ambulatory general anesthesia in the dental treatment of disabled patients. However, if the disability patients have strong refusal to enter the general anesthesia room due to strong phobia, we can not apply the general anesthesia induction. We experienced a dental treatment under ambulatory general anesthesia of a disabled patient who could not sit on any dental chair except for his favorite one. The patient was a 16-year-old boy. He was diagnosed Down ...

  9. Effects of trunk stability exercise using proprioceptive neuromuscular facilitation with changes in chair height on the gait of patients who had a stroke.

    Science.gov (United States)

    Park, Si-Eun; Moon, Sang-Hyun

    2016-07-01

    [Purpose] The purpose of this study was to identify the effects of trunk stability exercise using proprioceptive neuromuscular facilitation with changes in chair heights on the gait of stroke patients. [Subjects and Methods] The subjects of this study were 11 stroke patients. The intervention method was trunk stability exercise using proprioceptive neuromuscular facilitation with different chair heights (50, 60, and 70 cm). These exercises were performed 5 times per week for 6 weeks. Gait velocity, cadence, stride length, gait cycle, and stance phase duration were used to measure gait function. [Results] Significant changes in gait velocity, cadence, and stride length were observed on the affected side. However, no significant changes in gait cycle and stance phase were observed on the affected side. [Conclusion] These results indicate that trunk stability exercise using proprioceptive neuromuscular facilitation with change in chair heights were effective in improving gait velocity, cadence, and stride length on the affected side. However, in this study, no significant changes were observed in gait cycle and stance phase on the affected side. Therefore, various interventions for stroke patients should be investigated in further studies.

  10. Temporary implant-supported prosthesis for immediate loading according to a chair-side concept: technical note and results from 37 consecutive cases.

    Science.gov (United States)

    Ostman, Pär-Olov; Hellman, Mats; Sennerby, Lars; Wennerberg, Ann

    2008-05-01

    During the last years, focus has been paid to implant treatment using immediate function protocols, and different approaches to provide patients with temporary constructions have been presented. Most of these techniques involve dental technicians producing the temporary construction, for example, rebuilding existing dentures, acrylic bridges, etc. The purpose of this prospective clinical study was to evaluate the clinical outcome of a chair-side technique of a cost-effective temporary prosthesis. Fixture survival rate and risk of temporary bridge failure were analyzed. Thirty-seven partially or totally edentate patients (18 female and 19 male; mean age: 66.7 years) treated with chair-side manufactured temporary restorations (QuickBridge, BIOMET 3i, Palm Beach, Fl, USA) for immediate loading have been evaluated. The prostheses extended from two unit bridges supported by two implants to full-arch construction supported by six implants. The temporary prostheses were monitored from the day of surgery and delivery to the time of replacement with a permanent prosthetic construction 3 to 6 months later. No implants were lost during the observation time. One (3%) temporary prosthesis fractured and additional two (6%) loosened during the follow-up time. The study indicated that the tested chair-side concept for manufacturing of temporary prosthesis for immediate loading of dental implants is a viable approach.

  11. Automated genotyping of dinucleotide repeat markers

    Energy Technology Data Exchange (ETDEWEB)

    Perlin, M.W.; Hoffman, E.P. [Carnegie Mellon Univ., Pittsburgh, PA (United States)]|[Univ. of Pittsburgh, PA (United States)

    1994-09-01

    The dinucleotide repeats (i.e., microsatellites) such as CA-repeats are a highly polymorphic, highly abundant class of PCR-amplifiable markers that have greatly streamlined genetic mapping experimentation. It is expected that over 30,000 such markers (including tri- and tetranucleotide repeats) will be characterized for routine use in the next few years. Since only size determination, and not sequencing, is required to determine alleles, in principle, dinucleotide repeat genotyping is easily performed on electrophoretic gels, and can be automated using DNA sequencers. Unfortunately, PCR stuttering with these markers generates not one band for each allele, but a pattern of bands. Since closely spaced alleles must be disambiguated by human scoring, this poses a key obstacle to full automation. We have developed methods that overcome this obstacle. Our model is that the observed data is generated by arithmetic superposition (i.e., convolution) of multiple allele patterns. By quantitatively measuring the size of each component band, and exploiting the unique stutter pattern associated with each marker, closely spaced alleles can be deconvolved; this unambiguously reconstructs the {open_quotes}true{close_quotes} allele bands, with stutter artifact removed. We used this approach in a system for automated diagnosis of (X-linked) Duchenne muscular dystrophy; four multiplexed CA-repeats within the dystrophin gene were assayed on a DNA sequencer. Our method accurately detected small variations in gel migration that shifted the allele size estimate. In 167 nonmutated alleles, 89% (149/167) showed no size variation, 9% (15/167) showed 1 bp variation, and 2% (3/167) showed 2 bp variation. We are currently developing a library of dinucleotide repeat patterns; together with our deconvolution methods, this library will enable fully automated genotyping of dinucleotide repeats from sizing data.

  12. Storminess helps coastal marshes withstand sea level rise

    Science.gov (United States)

    Balcerak, Ernie

    2013-03-01

    Rising sea levels are predicted to threaten many coastal sea marshes around the world in the coming decades as the Earth's climate warms. In addition to accelerating sea level rise, global climate change is predicted to increase the frequency and severity of storms in many places around the world. However, few studies have taken into account how an increased storminess might affect the ability of coastal marshes to withstand sea level rise.

  13. The social values at risk from sea-level rise

    Energy Technology Data Exchange (ETDEWEB)

    Graham, Sonia, E-mail: sonia.graham@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia); Barnett, Jon, E-mail: jbarn@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia); Fincher, Ruth, E-mail: r.fincher@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia); Hurlimann, Anna, E-mail: anna.hurlimann@unimelb.edu.au [Faculty of Architecture, Building and Planning, The University of Melbourne, Architecture and Planning Building, Parkville, Victoria 3010 (Australia); Mortreux, Colette, E-mail: colettem@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia); Waters, Elissa, E-mail: elissa.waters@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia)

    2013-07-15

    Analysis of the risks of sea-level rise favours conventionally measured metrics such as the area of land that may be subsumed, the numbers of properties at risk, and the capital values of assets at risk. Despite this, it is clear that there exist many less material but no less important values at risk from sea-level rise. This paper re-theorises these multifarious social values at risk from sea-level rise, by explaining their diverse nature, and grounding them in the everyday practices of people living in coastal places. It is informed by a review and analysis of research on social values from within the fields of social impact assessment, human geography, psychology, decision analysis, and climate change adaptation. From this we propose that it is the ‘lived values’ of coastal places that are most at risk from sea-level rise. We then offer a framework that groups these lived values into five types: those that are physiological in nature, and those that relate to issues of security, belonging, esteem, and self-actualisation. This framework of lived values at risk from sea-level rise can guide empirical research investigating the social impacts of sea-level rise, as well as the impacts of actions to adapt to sea-level rise. It also offers a basis for identifying the distribution of related social outcomes across populations exposed to sea-level rise or sea-level rise policies.

  14. Development and evaluation of a saliva-based chair-side diagnostic for the detection of Porphyromonas gingivalis

    Directory of Open Access Journals (Sweden)

    Neil M. O'Brien-Simpson

    2015-09-01

    Full Text Available Porphyromonas gingivalis is a key pathogen in the polymicrobial biofilm that is associated with the oral disease chronic periodontitis. A number of studies have shown that in humans the level of P. gingivalis in the polymicrobial biofilm is positively correlated with disease progression. The aim of this study was to develop a P. gingivalis diagnostic that has high specificity and sensitivity for P. gingivalis using a range of laboratory and clinical isolates and then compare the efficacy of the diagnostic with RTPCR using samples from chronic periodontitis patients and age- and sex-matched healthy controls. Key parameters for the kit were to use saliva as the biological fluid as this is a most convenient medium for chair-side sampling and to give a positive reading for the reported threshold for detection of 5×105 P. gingivalis cells/mL that indicates disease progression. We initially screened a range of monoclonal antibodies for recognition of the P. gingivalis conserved virulence factor RgpA-Kgp complex and identified two mAbs that could be used in a capture and detection ELISA system. These mAbs were used to formulate and manufacture the GC P. gingivalis saliva diagnostic kit used in the study. To validate the saliva kit, saliva (P. gingivalis free was spiked with known concentrations of viable P. gingivalis whole cells of W50, 381, A7A1-28, and ATCC 33277; P. gingivalis clinical isolates; P. gingivalis vesicles; and the secreted form of the RgpA-Kgp complex. Laboratory findings indicated that the kit was able to detect all laboratory and clinical isolate strains of P. gingivalis at 5×104/mL to 5×105/mL. It was also able to detect the RgpA-Kgp complex and vesicles at 5×104 and 5×105 cell equivalent doses, respectively. Saliva and plaque were then collected from 50 subjects with moderate–severe chronic periodontitis and 50 age- and sex-matched subjects with healthy periodontium. Real-time PCR was utilised to analyse levels of P

  15. Development and evaluation of a saliva-based chair-side diagnostic for the detection of Porphyromonas gingivalis.

    Science.gov (United States)

    O'Brien-Simpson, Neil M; Burgess, Kate; Brammar, Gail C; Darby, Ivan B; Reynolds, Eric C

    2015-01-01

    Porphyromonas gingivalis is a key pathogen in the polymicrobial biofilm that is associated with the oral disease chronic periodontitis. A number of studies have shown that in humans the level of P. gingivalis in the polymicrobial biofilm is positively correlated with disease progression. The aim of this study was to develop a P. gingivalis diagnostic that has high specificity and sensitivity for P. gingivalis using a range of laboratory and clinical isolates and then compare the efficacy of the diagnostic with RTPCR using samples from chronic periodontitis patients and age- and sex-matched healthy controls. Key parameters for the kit were to use saliva as the biological fluid as this is a most convenient medium for chair-side sampling and to give a positive reading for the reported threshold for detection of 5×10(5) P. gingivalis cells/mL that indicates disease progression. We initially screened a range of monoclonal antibodies for recognition of the P. gingivalis conserved virulence factor RgpA-Kgp complex and identified two mAbs that could be used in a capture and detection ELISA system. These mAbs were used to formulate and manufacture the GC P. gingivalis saliva diagnostic kit used in the study. To validate the saliva kit, saliva (P. gingivalis free) was spiked with known concentrations of viable P. gingivalis whole cells of W50, 381, A7A1-28, and ATCC 33277; P. gingivalis clinical isolates; P. gingivalis vesicles; and the secreted form of the RgpA-Kgp complex. Laboratory findings indicated that the kit was able to detect all laboratory and clinical isolate strains of P. gingivalis at 5×10(4)/mL to 5×10(5)/mL. It was also able to detect the RgpA-Kgp complex and vesicles at 5×10(4) and 5×10(5) cell equivalent doses, respectively. Saliva and plaque were then collected from 50 subjects with moderate-severe chronic periodontitis and 50 age- and sex-matched subjects with healthy periodontium. Real-time PCR was utilised to analyse levels of P. gingivalis in both

  16. Prof. Manuel Trajtenberg, Chair of the Planning and Budget Committee, Council for Higher Education in Israel with CERN Director-General R. Heuer and in front of the ATLAS detector on Thursday 14th January.

    CERN Multimedia

    Maximilien Brice; Point 1

    2010-01-01

    Prof. Manuel Trajtenberg, Chair of the Planning and Budget Committee, Council for Higher Education in Israel with CERN Director-General R. Heuer and in front of the ATLAS detector on Thursday 14th January.

  17. [About the 350th anniversary of the foundation of the chair of anatomy of the faculty of medicine at Strasbourg (1652-2002)].

    Science.gov (United States)

    Le Minor, Jean-Marie; Sick, Henri

    2003-01-01

    Some historical and bibliographical elements are given at the occasion of the 350th anniversary of the foundation of the chair of anatomy at Strasbourg. Strasbourg played an important role in the dissemination of the anatomical knowledge in the end of the 15th and the first half of the 16th century. In 1517, the first official human dissection organized in Strasbourg was performed. In 1652, a specific chair of anatomy founded, and the first holder was J. A. Sebiz (1614-1685). In 1670, an anatomical lecture theatre was created. Strasbourg became a French town in 1681 with no modification of the university and of the chair of anatomy. In 1872, after the annexation of Alsace, a new German university was founded ; normal anatomy and pathology were separated and each chair attached to a particular institute. In 1919, when the Faculty of Medicine was reorganized after Alsace was restored to France, specific chairs and institutes were founded for histology and embryology. Among the famous morphologists and scientists who worked in Strasbourg were in anatomy : H. Brunschwig (?-1534), W. H. Ryff (c. 1505-1548), J. Winter von Andernach (1497-1574), T. Lauth (1758-1826), F. D. Reisseissen (1773-1828), J. F. Lobstein (1777-1835), E. A. Lauth (1803-1837), E. Koeberlé (1828-1915), E. Beaunis (1830-1921), H. D. Bouchard (1833-1899), J. G. Joessel (1838-1892), W. Waldeyer (1836-1921), G. Schwalbe (1844-1916), W. Pfitzner (1853-1903), F. Keibel (1861-1929), A. Forster (1878-1957), and P. Bellocq (1888-1962) ; in pathology : F. D. von Rechlinghausen (1833-1910), H. Chiari (1851-1916), J. G. Mönckeberg (1877-1925), P. Masson (1880-1959), and L. Géry (1883-1957) ; in histology : P. Bouin (1870-1962), M. Aron (1892-1974), R. Courrier (1895-1986), and M. Klein (1905-1975) ; in embryology : P. Ancel (1873-1961), P. Vintemberger (1891-1983), J. Benoit (1896-1982), E. Wolff (1904-1996), and J. Clavert (1912-1994).

  18. Avaliação ergonômica de cadeiras de madeira e derivados Ergonomic evaluation of chairs made of wood and its derivatives

    Directory of Open Access Journals (Sweden)

    Amaury Paulo de Souza

    2010-02-01

    Full Text Available Este trabalho teve como objetivo realizar a avaliação ergonômica de cadeiras de madeira e derivados fabricadas no Polo Moveleiro de Carmo do Cajuru, MG, visando à melhoria da qualidade ergonômica dos móveis, envolvendo aspectos de adaptação antropométrica, conforto e de segurança. A coleta de dados foi realizada em cadeiras fabricadas por indústrias associadas ao Sindicato das Indústrias do Mobiliário e de Artefatos de Madeira no Estado de Minas Gerais de Carmo do Cajuru - SINDIMOV, MG. Os critérios de conformidade foram definidos de acordo com os princípios de antropometria, ergonomia e os aspectos de segurança para o usuário. Os resultados das medições foram confrontados com recomendações e dados antropométricos existentes na literatura. Observou-se que os maiores problemas detectados nas cadeiras estavam relacionados às dimensões do assento. A altura dos assentos de todas as cadeiras foi superior aos valores recomendados na literatura. Os encostos não apresentaram problemas quanto à sua largura, porém necessitavam de adequação dos ângulos de inclinação em relação aos assentos. Outro problema encontrado foi a grande incidência de quinas e bordas retas que podem ocasionar injúrias aos usuários desses móveis.This study aimed to carry out an ergonomic assessment of chairs and wooden products manufactured in the furniture cluster of Carmo do Cajuru, MG, and improve the ergonomic quality of furniture, involving aspects of anthropometric adaptation, comfort and safety. Data were collected from chairs manufactured by industries associated with the Union of Furniture Industries and Wooden Artifacts located in Carmo do Cajuru in the State of Minas Gerais - SINDIMOV, MG. Compliance criteria were defined according to the anthropometric principles, aspects of ergonomics and safety for the user. Measurements were compared with anthropometric data and recommendations in the literature. The major problem identified in

  19. The Professorial Chair (kursī ‘ilmī or kursī li-l-wa‘ẓ wa-l-irshād in Morocco

    Directory of Open Access Journals (Sweden)

    Erzini, Nadia

    2013-06-01

    Full Text Available Moroccan congregational mosques are equipped with a minbar (pulpit which is used for the Friday sermon. Many mosques in Morocco are also equipped with one or more smaller chairs, which differ in their form and function from the minbar. These chairs are used by professors to give regular lectures to students of traditional education, and by scholars to give occasional lectures to the general public. This tradition of the professorial chair was probably introduced to Morocco from the Middle East in the thirteenth century. Most of the existing chairs in Morocco seem to date from the nineteenth and twentieth centuries, and they continue to be made and used today. The chairs always have two steps, a seat, a backrest and armrests. This form probably evokes the original minbar of the Prophet in Medina, which had two steps and a seat, and this is one of many aspects of the conservatism and se parate evolution of Moroccan Malikism.Las mezquitas congregacionales en Marruecos suelen tener un almimbar (p?lpito que se utiliza durante el sermón de los viernes. Muchas mezquitas de Marruecos cuentan también con una o más sillas, diferenciadas del almimbar en su forma y su función ya que son utilizadas por los profesores para ensenar a los estudiantes de la educación tradicional, y por eruditos que dan conferencias ocasionales al p?blico en general. Esta tradición de cátedras se introduce probablemente en Marruecos desde Próximo Oriente en el siglo XIII. La mayoría de las cátedras existentes parecen datar de los siglos XIX y XX, manteniéndose hasta nuestros días la fabricación y utilización de estas sillas. Las cátedras siempre tienen dos peldanos, un asiento, un respaldo y apoyabrazos. La forma de las sillas parece evocar el almimbar original del Profeta en Medina, tradición que se muestra como uno de los muchos aspectos del conservadurismo y de la evolución distinta del Malikismo marroquí.

  20. Mining of simple sequence repeats in the Genome of Gentianaceae

    Directory of Open Access Journals (Sweden)

    R Sathishkumar

    2011-01-01

    Full Text Available Simple sequence repeats (SSRs or short tandem repeats are short repeat motifs that show high level of length polymorphism due to insertion or deletion mutations of one or more repeat types. Here, we present the detection and abundance of microsatellites or SSRs in nucleotide sequences of Gentianaceae family. A total of 545 SSRs were mined in 4698 nucleotide sequences downloaded from the National Center for Biotechnology Information (NCBI. Among the SSR sequences, the frequency of repeat type was about 429 -mono repeats, 99 -di repeats, 15 -tri repeats, and 2 --hexa repeats. Mononucleotide repeats were found to be abundant repeat types, about 78%, followed by dinucleotide repeats (18.16% among the SSR sequences. An attempt was made to design primer pairs for 545 identified SSRs but these were found only for 169 sequences.

  1. PolyQ repeat expansions in ATXN2 associated with ALS are CAA interrupted repeats.

    Directory of Open Access Journals (Sweden)

    Zhenming Yu

    Full Text Available Amyotrophic lateral sclerosis (ALS is a devastating, rapidly progressive disease leading to paralysis and death. Recently, intermediate length polyglutamine (polyQ repeats of 27-33 in ATAXIN-2 (ATXN2, encoding the ATXN2 protein, were found to increase risk for ALS. In ATXN2, polyQ expansions of ≥ 34, which are pure CAG repeat expansions, cause spinocerebellar ataxia type 2. However, similar length expansions that are interrupted with other codons, can present atypically with parkinsonism, suggesting that configuration of the repeat sequence plays an important role in disease manifestation in ATXN2 polyQ expansion diseases. Here we determined whether the expansions in ATXN2 associated with ALS were pure or interrupted CAG repeats, and defined single nucleotide polymorphisms (SNPs rs695871 and rs695872 in exon 1 of the gene, to assess haplotype association. We found that the expanded repeat alleles of 40 ALS patients and 9 long-repeat length controls were all interrupted, bearing 1-3 CAA codons within the CAG repeat. 21/21 expanded ALS chromosomes with 3CAA interruptions arose from one haplotype (GT, while 18/19 expanded ALS chromosomes with <3CAA interruptions arose from a different haplotype (CC. Moreover, age of disease onset was significantly earlier in patients bearing 3 interruptions vs fewer, and was distinct between haplotypes. These results indicate that CAG repeat expansions in ATXN2 associated with ALS are uniformly interrupted repeats and that the nature of the repeat sequence and haplotype, as well as length of polyQ repeat, may play a role in the neurological effect conferred by expansions in ATXN2.

  2. Repeatability of peripheral aberrations in young emmetropes.

    Science.gov (United States)

    Baskaran, Karthikeyan; Theagarayan, Baskar; Carius, Staffan; Gustafsson, Jörgen

    2010-10-01

    The purpose of this study is to assess the intrasession repeatability of ocular aberration measurements in the peripheral visual field with a commercially available Shack-Hartmann aberrometer (complete ophthalmic analysis system-high definition-vision research). The higher-order off-axis aberrations data in young healthy emmetropic eyes are also reported. The aberrations of the right eye of 18 emmetropes were measured using an aberrometer with an open field of view that allows peripheral measurements. Five repeated measures of ocular aberrations were obtained and assessed in steps of 10° out to ±40° in the horizontal visual field (nasal + and temporal -) and -20° in the inferior visual field. The coefficient of repeatability, coefficient of variation, and the intraclass correlation coefficient were calculated as a measure of intrasession repeatability. In all eccentric angles, the repeatability of the third- and fourth-order aberrations was better than the fifth and sixth order aberrations. The coefficient of variation was coefficient was >0.90 for the third and fourth order but reduced gradually for higher orders. There was no statistical significant difference in variance of total higher-order root mean square between on- and off-axis measurements (p > 0.05). The aberration data in this group of young emmetropes showed that the horizontal coma (C(3)(1)) was most positive at 40° in the temporal field, decreasing linearly toward negative values with increasing off-axis angle into the nasal field, whereas all other higher-order aberrations showed little or no change. The complete ophthalmic analysis system-high definition-vision research provides fast, repeatable, and valid peripheral aberration measurements and can be used efficiently to measure off-axis aberrations in the peripheral visual field.

  3. Safety of Repeated Yttrium-90 Radioembolization

    Energy Technology Data Exchange (ETDEWEB)

    Lam, Marnix G. E. H.; Louie, John D. [Stanford University School of Medicine, Division of Interventional Radiology (United States); Iagaru, Andrei H.; Goris, Michael L. [Stanford University School of Medicine, Division of Nuclear Medicine (United States); Sze, Daniel Y., E-mail: dansze@stanford.edu [Stanford University School of Medicine, Division of Interventional Radiology (United States)

    2013-10-15

    Purpose: Repeated radioembolization (RE) treatments carry theoretically higher risk of radiation-induced hepatic injury because of the liver's cumulative memory of previous exposure. We performed a retrospective safety analysis on patients who underwent repeated RE. Methods: From 2004 to 2011, a total of 247 patients were treated by RE. Eight patients (5 men, 3 women, age range 51-71 years) underwent repeated treatment of a targeted territory, all with resin microspheres (SIR-Spheres; Sirtex, Lane Cove, Australia). Adverse events were graded during a standardized follow-up. In addition, the correlation between the occurrence of RE-induced liver disease (REILD) and multiple variables was investigated in univariate and multivariate analyses in all 247 patients who received RE. Results: Two patients died shortly after the second treatment (at 84 and 107 days) with signs and symptoms of REILD. Both patients underwent whole liver treatment twice (cumulative doses 3.08 and 2.66 GBq). The other 6 patients demonstrated only minor toxicities after receiving cumulative doses ranging from 2.41 to 3.88 GBq. All patients experienced objective tumor responses. In the whole population, multifactorial analysis identified three risk factors associated with REILD: repeated RE (p = 0.036), baseline serum total bilirubin (p = 0.048), and baseline serum aspartate aminotransferase (p = 0.043). Repeated RE proved to be the only independent risk factor for REILD in multivariate analysis (odds ratio 9.6; p = 0.002). Additionally, the administered activity per target volume (in GBq/L) was found to be an independent risk factor for REILD, but only in whole liver treatments (p = 0.033). Conclusion: The risk of REILD appears to be elevated for repeated RE. Objective tumor responses were observed, but establishment of safety limits will require improvement in dosimetric measurement and prediction.

  4. Repeat Gamma Knife Radiosurgery for Trigeminal Neuralgia

    Energy Technology Data Exchange (ETDEWEB)

    Aubuchon, Adam C., E-mail: acaubuchon@gmail.com [Department of Radiation Oncology, Wake Forest University School of Medicine, Winston-Salem, NC (United States); Chan, Michael D. [Department of Radiation Oncology, Wake Forest University School of Medicine, Winston-Salem, NC (United States); Lovato, James F. [Department of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, NC (United States); Balamucki, Christopher J. [Department of Radiation Oncology, University of Florida, Gainesville, FL (United States); Ellis, Thomas L.; Tatter, Stephen B. [Department of Neurosurgery, Wake Forest University School of Medicine, Winston-Salem, NC (United States); McMullen, Kevin P.; Munley, Michael T.; Deguzman, Allan F.; Ekstrand, Kenneth E.; Bourland, J. Daniel; Shaw, Edward G. [Department of Radiation Oncology, Wake Forest University School of Medicine, Winston-Salem, NC (United States)

    2011-11-15

    Purpose: Repeat gamma knife stereotactic radiosurgery (GKRS) for recurrent or persistent trigeminal neuralgia induces an additional response but at the expense of an increased incidence of facial numbness. The present series summarized the results of a repeat treatment series at Wake Forest University Baptist Medical Center, including a multivariate analysis of the data to identify the prognostic factors for treatment success and toxicity. Methods and Materials: Between January 1999 and December 2007, 37 patients underwent a second GKRS application because of treatment failure after a first GKRS treatment. The mean initial dose in the series was 87.3 Gy (range, 80-90). The mean retreatment dose was 84.4 Gy (range, 60-90). The dosimetric variables recorded included the dorsal root entry zone dose, pons surface dose, and dose to the distal nerve. Results: Of the 37 patients, 81% achieved a >50% pain relief response to repeat GKRS, and 57% experienced some form of trigeminal dysfunction after repeat GKRS. Two patients (5%) experienced clinically significant toxicity: one with bothersome numbness and one with corneal dryness requiring tarsorraphy. A dorsal root entry zone dose at repeat treatment of >26.6 Gy predicted for treatment success (61% vs. 32%, p = .0716). A cumulative dorsal root entry zone dose of >84.3 Gy (72% vs. 44%, p = .091) and a cumulative pons surface dose of >108.5 Gy (78% vs. 44%, p = .018) predicted for post-GKRS numbness. The presence of any post-GKRS numbness predicted for a >50% decrease in pain intensity (100% vs. 60%, p = .0015). Conclusion: Repeat GKRS is a viable treatment option for recurrent trigeminal neuralgia, although the patient assumes a greater risk of nerve dysfunction to achieve maximal pain relief.

  5. Copy number of tandem direct repeats within the inverted repeats of Marek's disease virus DNA.

    Science.gov (United States)

    Kanamori, A; Nakajima, K; Ikuta, K; Ueda, S; Kato, S; Hirai, K

    1986-12-01

    We previously reported that DNA of the oncogenic strain BC-1 of Marek's disease virus serotype 1 (MDV1) contains three units of tandem direct repeats with 132 base pair (bp) repeats within the inverted repeats of the long regions of the MDV1 genome, whereas the attenuated, nononcogenic viral DNA contains multiple units of tandem direct repeats (Maotani et al., 1986). In the present study, the difference in the copy numbers of 132 bp repeats of oncogenic and nononcogenic MDV1 DNAs in other strains of MDV1 was investigated by Southern blot hybridization. The main copy numbers in different oncogenic MDV1 strains differed: those of BC-1, JM and highly oncogenic Md5 were 3, 5 to 12 and 2, respectively. The viral DNA population with two units of repeats was small, but detectable, in cells infected with either the oncogenic BC-1 or JM strain. The MDV1 DNA in various MD cell lines contained either two units or both two and three units of repeats. The significance of the copy number of repeats in oncogenicity of MDV1 is discussed.

  6. Chair in Pediatric Surgery

    OpenAIRE

    Graña, Francisco; Facultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, Perú

    2014-01-01

    Inaugural lecture of the course of 1922, Department of Paediatric Surgery, by Dr. Francisco Grana, Professor of Pediatric Surgery and Orthopedics at the Faculty of Medicine of Lima, the National Academy of Medicine, of the Peruvian Society of Surgery. Lección inaugural del curso de 1922, Cátedra de Cirugía Infantil, por el Dr. Francisco Graña, Catedrático de Cirugía Infantil y Ortopedia en la Facultad de Medicina de Lima, de la Academia Nacional de Medicina, de la Sociedad Peruana de Cirug...

  7. ICMI 2012 chairs' welcome

    NARCIS (Netherlands)

    Cassell, Justine; Nijholt, Anton; Epps, Julien; Morency, Louis-Philippe; Bohus, Dan; Aghajan, Hamid; Morency, Louis-Philippe; Bohus, Dan; Aghajan, Hamid; Nijholt, Anton; Cassell, Justine; Epps, Julien

    2012-01-01

    Welcome to Santa Monica and to the 14th edition of the International Conference on Multimodal Interaction, ICMI 2012. ICMI is the premier international forum for multidisciplinary research on multimodal human-human and human-computer interaction, interfaces, and system development. We had a record n

  8. From the Chair

    Institute of Scientific and Technical Information of China (English)

    EduardoF.J.deMulder

    2004-01-01

    Disseminating scientific knowledge has always been a key topic in IUGS' activities. The Union has produced a range of publications (books, journals, maps, charts), both on its own and in cooperation with other organizations and publishers.Some of these works have been concerned with geological standards, while others have been overviews of current topics,

  9. Wise chair 2009

    Directory of Open Access Journals (Sweden)

    Domen Zupančič

    2012-01-01

    Full Text Available Paper furniture design is not a novelty; at our school, too, students have designed objects and even a dome made from paper. What is new is that our colleagues created useful elements and presented them to the most demanding users - children. Having seen the response and spirited understanding of the children, I was very happy about this collaboration between the university and the nursery.

  10. Arm chair perspective preferences

    NARCIS (Netherlands)

    Koenderink, Jan; van Doorn, A.J.; Pinna, Baingio; Pepperell, Robert

    2016-01-01

    Do generic observers in their free-style viewing of postcard-size pictures have a preference for specific modes of perspective rendering? This most likely depends upon the phrasing of the question. Here we consider the feeling of ‘presence’: does the observer experience a sense of being ‘immersed in

  11. Rises and Falls in Dutch and Mandarin Chinese

    NARCIS (Netherlands)

    Chen, Ao; Chen, Aoju; Kager, René; Wong, Patrick

    2014-01-01

    Despite of the different functions of pitch in tone and nontone languages, rises and falls are common pitch patterns across different languages. In the current study, we ask what is the language specific phonetic realization of rises and falls. Chinese and Dutch speakers participated in a production

  12. Estuaries May Face Increased Parasitism as Sea Levels Rise

    Science.gov (United States)

    Wendel, JoAnna

    2014-12-01

    Invertebrates in estuaries could be at a greater risk of parasitism as climate change causes sea levels to rise. A new paper published 8 December in Proceedings of the National Academy of Sciences of the United States of America (doi:10.1073/pnas.1416747111) describes how rapid sea level rise in the Holocene affected the population of parasitic flatworms called trematodes.

  13. Planning of Low-rise Urban Housing Areas

    DEFF Research Database (Denmark)

    Svensson, O.

    In many countries industrialization of house building has led to the building of large, monotonous housing areas with high-rise construction. In Denmark, however, smaller, varied housing areas with low-rise construction and urban features have become predominant. This report contains guidelines...... for the planning of such housing areas....

  14. Reliability and Validity of the Standing Heel-Rise Test

    Science.gov (United States)

    Yocum, Allison; McCoy, Sarah Westcott; Bjornson, Kristie F.; Mullens, Pamela; Burton, Gay Naganuma

    2010-01-01

    A standardized protocol for a pediatric heel-rise test was developed and reliability and validity are reported. Fifty-seven children developing typically (CDT) and 34 children with plantar flexion weakness performed three tests: unilateral heel rise, vertical jump, and force measurement using handheld dynamometry. Intraclass correlation…

  15. The New Woman in "The Sun Also Rises"

    Science.gov (United States)

    Yu, Xiaoping

    2010-01-01

    Hemingway is a famous American writer and a spokesman of the Lost Generation. His life attitude of the characters in the novels influenced the whole world. His first masterpiece "The Sun Also Rises" contributes a lot to the rise of feminism and make the world began to be familiar with a term: The New Woman through the portrayal of Brett.…

  16. The Rise of Conservatism since World War II.

    Science.gov (United States)

    Carter, Dan T.

    2003-01-01

    Discusses the rise of the conservatism movement in the United States since World War II. States that laissez-faire capitalism and the rise of communism contributed to the popularity of conservatism in the United States. Focuses on the role of U.S. Presidents, such as Richard Nixon and Ronald Reagan. (CMK)

  17. NMR-based conformation and dynamics of a tetrasaccharide-repeating sulfated fucan substituted by different counterions.

    Science.gov (United States)

    Soares, Paulo A G; Queiroz, Ismael N L; Santos, Gustavo R C; Mourão, Paulo A S; Pomin, Vitor H

    2016-11-01

    The sulfated fucan from the sea urchin Lytechinus variegatus is composed of the repetitive sequence [-3)-α-l-Fucp-4( OSO3-)-(1-3)-α-l-Fucp-2,4-di( OSO3-)-(1-3)-α-l-Fucp-2( OSO3-)-(1-3)-α-l-Fucp-2( OSO3-)-(1-]n . Conformation (of rings and chains) and dynamics of this tetrasaccharide-repeating sulfated fucan substituted by Na(+) , Ca(2+) , and Li(+) as counterions have been examined through experiments of liquid-state nuclear magnetic resonance spectroscopy. Scalar coupling and nuclear Overhauser effect (NOE)-based data have confirmed that all composing units occur as (1) C4 chair conformer regardless of the cation type, unit position within the repeating sequence, and sulfation type. Chain conformation determined by NOE signal pattern assisted by molecular modeling for a theoretical octasaccharide has shown a similar linear 3D structure for the three differently substituted forms. Data derived from spin-relaxation measurements have indicated a contribution of counterion type to dynamics. The calcium-based preparation has shown the highest mobility while the sodiated one showed the lowest mobility. The set of results from this work suggests that counterion type can affect the physicochemical properties of the structurally well-defined sulfated fucan. The counterion effect seems to impact more on the structural mobility than on average conformation of the studied sulfated glycan in solution.

  18. Barrier response to Holocene sea-level rise

    DEFF Research Database (Denmark)

    Pejrup, Morten; Andersen, Thorbjørn Joest; Johannessen, Peter N

    Normally it is believed that sea-level rise causes coastal barrier retreat. However, sea-level is only one of the parameters determining the long term coastal development of barrier coasts. Sediment supply is an equally important determinant and may overshadow the effects of sea-level rise...... show quite different responses to sea-level rise. The southernmost island Rømø has survived 17 m of sea-level rise at the same position illustrating the control from sediment supply; whereas the northernmost island Skallingen has shifted its position several times during the same period indicating...... a much stronger component of sea-level control. The distance between the islands is only 50 km, and therefore our study shows that prediction of barrier development during a period of rising sea level may be more complicated than formerly believed....

  19. Temperature rise and wear of sliding contact of alloy steels

    Science.gov (United States)

    Goswami, Arindam Roy; Sardar, Santanu; Karmakar, Santanu Kumar

    2016-07-01

    The tribo-failure of machine elements under relative sliding velocities is greatly affected by frictional heating and resultant contact temperature rise. Nevertheless, the tribo-failure of automotive components is a combined effect of mechanical, thermal and chemical phenomena. Over the decades, there have been developed a number of different mathematical models for predicting surface temperature rise at sliding contact under different geometries of asperity contacts and operating conditions. The experimental investigation is still relevant today to find out the surface temperature rise at sliding contact along with the outcomes of friction and wear under various operating conditions for real time applications. The present work aims at finding average surface temperature rise at different sliding velocities, normal loads with different surface roughness experimentally. It also involves to prepare two different rough surfaces of alloy steels and to study their influences in the process of generating contact temperature rise under a given operating conditions.

  20. Disposal of Kitchen Waste from High Rise Apartment

    Science.gov (United States)

    Ori, Kirki; Bharti, Ajay; Kumar, Sunil

    2017-07-01

    The high rise building has numbers of floor and rooms having variety of users or tenants for residential purposes. The huge quantities of heterogenous mixtures of domestic food waste are generated from every floor of the high rise residential buildings. Disposal of wet and biodegradable domestic kitchen waste from high rise buildings are more expensive in regards of collection and vertical transportation. This work is intended to address the technique to dispose of the wet organic food waste from the high rise buildings or multistory building at generation point with the advantage of gravity and vermicomposting technique. This innovative effort for collection and disposal of wet organic solid waste from high rise apartment is more economical and hygienic in comparison with present system of disposal.

  1. Sea level rise with warming above 2 degree

    Science.gov (United States)

    Jevrejeva, Svetlana; Jackson, Luke; Riva, Riccardo; Grinsted, Aslak; Moore, John

    2017-04-01

    Holding the increase in the global average temperature to below 2 °C above pre-industrial levels, and pursuing efforts to limit the temperature increase to 1.5 °C, has been agreed by the representatives of the 196 parties of United Nations, as an appropriate threshold beyond which climate change risks become unacceptably high. Sea level rise is one of the most damaging aspects of warming climate for the more than 600 million people living in low-elevation coastal areas less than 10 meters above sea level. Fragile coastal ecosystems and increasing concentrations of population and economic activity in coastal areas, are reasons why future sea level rise is one of the most damaging aspects of the warming climate. Furthermore, sea level is set to continue to rise for centuries after greenhouse gas emissions concentrations are stabilised due to system inertia and feedback time scales. Impact, risk, adaptation policies and long-term decision making in coastal areas depend on regional and local sea level rise projections and local projections can differ substantially from the global one. Here we provide probabilistic sea level rise projections for the global coastline with warming above the 2 degree goal. A warming of 2°C makes global ocean rise on average by 20 cm, but more than 90% of coastal areas will experience greater rises, 40 cm along the Atlantic coast of North America and Norway, due to ocean dynamics. If warming continues above 2°C, then by 2100 sea level will rise with speeds unprecedented throughout human civilization, reaching 0.9 m (median), and 80% of the global coastline will exceed the global ocean sea level rise upper 95% confidence limit of 1.8 m. Coastal communities of rapidly expanding cities in the developing world, small island states, and vulnerable tropical coastal ecosystems will have a very limited time after mid-century to adapt to sea level rises.

  2. Reference values for the bilateral heel-rise test.

    Science.gov (United States)

    Monteiro, Débora Pantuso; Britto, Raquel Rodrigues; Fregonezi, Guilherme Augusto de Freitas; Dias, Fernando Augusto Lavezzo; Silva, Marconi Gomes da; Pereira, Danielle Aparecida Gomes

    2017-07-03

    The bilateral heel-rise test is an instrument that evaluates the performance of the triceps surae. Normative parameters need to be established for the use of the heel-rise test in clinical practice. To determine the reference values for the bilateral heel-rise test. This cross-sectional study assessed healthy subjects using the bilateral heel-rise test. We analyzed the number of repetitions, time (in seconds), and repetition rate (repetitions/second) during execution of the heel-rise test, until the point of voluntary fatigue. The estimates were stratified by age and gender. Multiple linear regression was performed to define the reference equation for the bilateral heel-rise test. A total of 147 individuals were included. The median age was 37 years (IQR 28-46). It was observed that the number of repetitions decreases with age, with a higher number of repetitions in male participants compared to female participants. Gender, body mass index, and maximum activity scores predict 14% of the number of plantar flexions performed in the bilateral heel-rise test. Age and adjusted activity scores predict 18% of the repetition rate in the bilateral heel-rise test. The bilateral heel-rise test reference values for an adult population were defined as scores above the 25th percentile for number of repetitions, time, and repetition rate. The number of heel-rise test repetitions that corresponds to the 25th percentile, according to age and gender, is as follows: age 20-29, 65 repetitions for men and 45.5 for women; age 30-39, 62.75 men and 41.5 women; age 40-49, 67.25 men and 45 women; and age 50-59, 54 men and 39.25 women. Copyright © 2017 Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia. Publicado por Elsevier Editora Ltda. All rights reserved.

  3. Y Se Repite = And It Repeats Itself

    Science.gov (United States)

    Katzew, Adriana

    2010-01-01

    In this article, the author discusses Y Se Repite [And It Repeats Itself], a project she conceptualized due to the growing number of Latino/a Mexican migrant workers in dairy farms in the state of Vermont. In 2006, approximately 2,000 Latinos/as--most of them undocumented Mexican migrant workers--worked throughout the state's dairy farms, yet…

  4. Repeater For A Digital-Communication Bus

    Science.gov (United States)

    Torres-Guzman, Esteban; Olson, Stephen; Heaps, Tim

    1993-01-01

    Digital repeater circuit designed to extend range of communication on MIL-STD-1553 bus beyond original maximum allowable length of 300 ft. Circuit provides two-way communication, one way at time, and conforms to specifications of MIL-STD-1553. Crosstalk and instability eliminated.

  5. Episodes of repeated sudden deafness following pregnancies.

    Science.gov (United States)

    Pawlak-Osinska, Katarzyna; Burduk, Pawel K; Kopczynski, Andrzej

    2009-04-01

    Sex hormones influence and provoke changes in hearing levels. Sudden deafness is rarely observed in pregnant women. The effective treatment of sudden deafness in pregnant women is a challenging problem. We present a case of repeatable, completely regressed sudden deafness in a woman during her first and second pregnancies.

  6. Repeated sprint training in normobaric hypoxia.

    Science.gov (United States)

    Galvin, Harvey M; Cooke, Karl; Sumners, David P; Mileva, Katya N; Bowtell, Joanna L

    2013-12-01

    Repeated sprint ability (RSA) is a critical success factor for intermittent sport performance. Repeated sprint training has been shown to improve RSA, we hypothesised that hypoxia would augment these training adaptations. Thirty male well-trained academy rugby union and rugby league players (18.4 ± 1.5 years, 1.83 ± 0.07 m, 88.1 ± 8.9 kg) participated in this single-blind repeated sprint training study. Participants completed 12 sessions of repeated sprint training (10 × 6 s, 30 s recovery) over 4 weeks in either hypoxia (13% FiO₂) or normoxia (21% FiO₂). Pretraining and post-training, participants completed sports specific endurance and sprint field tests and a 10 × 6 s RSA test on a non-motorised treadmill while measuring speed, heart rate, capillary blood lactate, muscle and cerebral deoxygenation and respiratory measures. Yo-Yo Intermittent Recovery Level 1 test performance improved after RS training in both groups, but gains were significantly greater in the hypoxic (33 ± 12%) than the normoxic group (14 ± 10%, prepeated aerobic high intensity workout than an equivalent normoxic training. Performance gains are evident in the short term (4 weeks), a period similar to a preseason training block.

  7. Adaptation and complexity in repeated games

    DEFF Research Database (Denmark)

    Maenner, Eliot Alexander

    2008-01-01

    The paper presents a learning model for two-player infinitely repeated games. In an inference step players construct minimally complex inferences of strategies based on observed play, and in an adaptation step players choose minimally complex best responses to an inference. When players randomly ...

  8. A Structured Group Program for Repeat Dieters.

    Science.gov (United States)

    McNamara, Kathleen

    1989-01-01

    Describes a structured group program for women who repeatedly diet and may be at risk of developing more serious eating disorders. Discusses sessions focusing on eating behavior as well as internal factors that contribute to low body esteem and food and weight preoccupation. Evaluates effectiveness of program by self-reports of members of two…

  9. Why Do Students Repeat Admissions Tests?

    Science.gov (United States)

    Jones, Martha S.

    Attitudes and beliefs about the admissions process, especially the role of standardized testing in admissions, were examined for students who took a standardized admissions test more than once. Their attitudes were compared with those of students who did not repeat the test. About 200 preveterinary students who had taken the Veterinary Aptitude…

  10. The Effect of Repeaters on Equating

    Science.gov (United States)

    Kim, HeeKyoung; Kolen, Michael J.

    2010-01-01

    Test equating might be affected by including in the equating analyses examinees who have taken the test previously. This study evaluated the effect of including such repeaters on Medical College Admission Test (MCAT) equating using a population invariance approach. Three-parameter logistic (3-PL) item response theory (IRT) true score and…

  11. Triggering of repeating earthquakes in central California

    Science.gov (United States)

    Wu, Chunquan; Gomberg, Joan; Ben-Naim, Eli; Johnson, Paul

    2014-01-01

    Dynamic stresses carried by transient seismic waves have been found capable of triggering earthquakes instantly in various tectonic settings. Delayed triggering may be even more common, but the mechanisms are not well understood. Catalogs of repeating earthquakes, earthquakes that recur repeatedly at the same location, provide ideal data sets to test the effects of transient dynamic perturbations on the timing of earthquake occurrence. Here we employ a catalog of 165 families containing ~2500 total repeating earthquakes to test whether dynamic perturbations from local, regional, and teleseismic earthquakes change recurrence intervals. The distance to the earthquake generating the perturbing waves is a proxy for the relative potential contributions of static and dynamic deformations, because static deformations decay more rapidly with distance. Clear changes followed the nearby 2004 Mw6 Parkfield earthquake, so we study only repeaters prior to its origin time. We apply a Monte Carlo approach to compare the observed number of shortened recurrence intervals following dynamic perturbations with the distribution of this number estimated for randomized perturbation times. We examine the comparison for a series of dynamic stress peak amplitude and distance thresholds. The results suggest a weak correlation between dynamic perturbations in excess of ~20 kPa and shortened recurrence intervals, for both nearby and remote perturbations.

  12. A Repeater in the Language Laboratory

    Science.gov (United States)

    Griffiths, B. T.

    1969-01-01

    Discusses the feasilility of the use of repeater devices in the language laboratory in order to enable the student to "recapitulate effortlessly and and indefinitely any utterance of any length which is causing him difficulty or is of special interest. (FWB)

  13. The Differential Effects of Repeating Kindergarten

    Science.gov (United States)

    Burkam, David T.; LoGerfo, Laura; Ready, Doug; Lee, Valerie E.

    2007-01-01

    We use the Early Childhood Longitudinal Study to investigate national patterns addressing (a) who repeats kindergarten, and (b) the subsequent cognitive effects of this event. Using OLS regression techniques, we investigate 1st-time kindergartners who are promoted, 1st-time kindergartners who are retained, and children who are already repeating…

  14. Preventing Repeat Teen Births PSA (:60)

    Centers for Disease Control (CDC) Podcasts

    2013-04-02

    This 60 second public service announcement is based on the April 2013 CDC Vital Signs report, which discusses repeat teen births and ways teens, parents and guardians, health care providers, and communities can help prevent them.  Created: 4/2/2013 by Centers for Disease Control and Prevention (CDC).   Date Released: 4/2/2013.

  15. Epigenetics and triplet repeat neurological diseases

    Directory of Open Access Journals (Sweden)

    Sathiji eNageshwaran

    2015-12-01

    Full Text Available The term ‘junk DNA’ has been reconsidered following the delineation of the functional significance of repetitive DNA regions. Typically associated with centromeres and telomeres, DNA repeats are found in nearly all organisms throughout their genomes. Repetitive regions are frequently heterchromatinised resulting in silencing of intrinsic and nearby genes. However, this is not a uniform rule, with several genes known to require such an environment to permit transcription. Repetitive regions frequently exist as dinucleotide, trinucleotide and tetranucleotide repeats. The association between repetitive regions and disease was emphasised following the discovery of abnormal trinucleotide repeats underlying spinal and bulbar muscular atrophy (Kennedy’s disease and fragile X syndrome of mental retardation (FRAXA in 1991. In this review we provide a brief overview of epigenetic mechanisms and then focus on several diseases caused by DNA triplet-repeat expansions, which exhibit diverse epigenetic effects. It is clear that the emerging field of epigenetics is already generating novel potential therapeutic avenues for this group of largely incurable diseases.

  16. Costly renegotiation in repeated Bertand games

    DEFF Research Database (Denmark)

    Andersson, Ola; Wengström, Erik Roland

    2010-01-01

    This paper extends the concept of weak renegotiation-proof equilibrium (WRP) to allow for costly renegotiation and shows that even small renegotiation costs can have dramatic effects on the set of equilibria. More specifically, the paper analyzes the infinitely repeated Bertrand game. It is shown...

  17. EVOLUTION AND RECOMBINATION OF BOVINE DNA REPEATS

    NARCIS (Netherlands)

    JOBSE, C; BUNTJER, JB; HAAGSMA, N; BREUKELMAN, HJ; BEINTEMA, JJ; LENSTRA, JA

    The history of the abundant repeat elements in the bovine genome has been studied by comparative hybridization and PCR. The Bov-A and Bov-B SINE elements both emerged just after the divergence of the Camelidae and the true ruminants. A 31-bp subrepeat motif in satellites of the Bovidae species

  18. Building Fluency through the Repeated Reading Method

    Science.gov (United States)

    Cohen, Joshua

    2011-01-01

    For the last two years the author has used Repeated Reading (RR) to teach reading fluency in English as a Foreign Language classrooms in colleges and universities in Japan. RR is a method where the student reads and rereads a text silently or aloud from two to four times to reach a predetermined level of speed, accuracy, and comprehension. RR…

  19. History repeats itself: genomic divergence in copepods.

    Science.gov (United States)

    Renaut, Sébastien; Dion-Côté, Anne-Marie

    2016-04-01

    Press stop, erase everything from now till some arbitrary time in the past and start recording life as it evolves once again. Would you see the same tape of life playing itself over and over, or would a different story unfold every time? The late Steven Jay Gould called this experiment replaying the tape of life and argued that any replay of the tape would lead evolution down a pathway radically different from the road actually taken (Gould 1989). This thought experiment has puzzled evolutionary biologists for a long time: how repeatable are evolutionary events? And if history does indeed repeat itself, what are the factors that may help us predict the path taken? A powerful means to address these questions at a small evolutionary scale is to study closely related populations that have evolved independently, under similar environmental conditions. This is precisely what Pereira et al. (2016) set out to do using marine copepods Tigriopus californicus, and present their results in this issue of Molecular Ecology. They show that evolution can be repeatable and even partly predictable, at least at the molecular level. As expected from theory, patterns of divergence were shaped by natural selection. At the same time, strong genetic drift due to small population sizes also constrained evolution down a similar evolutionary road, and probably contributed to repeatable patterns of genomic divergence.

  20. Costly renegotiation in repeated Bertand games

    DEFF Research Database (Denmark)

    Andersson, Ola; Wengström, Erik Roland

    2010-01-01

    This paper extends the concept of weak renegotiation-proof equilibrium (WRP) to allow for costly renegotiation and shows that even small renegotiation costs can have dramatic effects on the set of equilibria. More specifically, the paper analyzes the infinitely repeated Bertrand game. It is shown...

  1. Photometric Repeatability of Scanned Imagery: UVIS

    Science.gov (United States)

    Shanahan, Clare E.; McCullough, Peter; Baggett, Sylvia

    2017-08-01

    We provide the preliminary results of a study on the photometric repeatability of spatial scans of bright, isolated white dwarf stars with the UVIS channel of the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST). We analyze straight-line scans from the first pair of identical orbits of HST program 14878 to assess if sub 0.1% repeatability can be attained with WFC3/UVIS. This study is motivated by the desire to achieve better signal-to-noise in the UVIS contamination and stability monitor, in which observations of standard stars in staring mode have been taken from the installation of WFC3 in 2009 to the present to assess temporal photometric stability. Higher signal to noise in this program would greatly benefit the sensitivity to detect contamination, and to better characterize the observed small throughput drifts over time. We find excellent repeatability between identical visits of program 14878, with sub 0.1% repeatability achieved in most filters. These! results support the initiative to transition the staring mode UVIS contamination and photometric stability monitor from staring mode images to spatial scans.

  2. Repeat surgery after failed midurethral slings

    DEFF Research Database (Denmark)

    Foss Hansen, Margrethe; Lose, Gunnar; Kesmodel, Ulrik Schiøler

    2016-01-01

    MUS from 1998 through 2007. The outcome was repeat surgery with any subsequent procedure code for urinary incontinence within a 5-year period of the first procedure. RESULTS: A total of 5,820 women (mean age 55.4 years, ± 12.1) were registered with a synthetic MUS, and 354 (6 %) underwent reoperation...

  3. EVOLUTION AND RECOMBINATION OF BOVINE DNA REPEATS

    NARCIS (Netherlands)

    JOBSE, C; BUNTJER, JB; HAAGSMA, N; BREUKELMAN, HJ; BEINTEMA, JJ; LENSTRA, JA

    1995-01-01

    The history of the abundant repeat elements in the bovine genome has been studied by comparative hybridization and PCR. The Bov-A and Bov-B SINE elements both emerged just after the divergence of the Camelidae and the true ruminants. A 31-bp subrepeat motif in satellites of the Bovidae species cattl

  4. Multivariate linear models and repeated measurements revisited

    DEFF Research Database (Denmark)

    Dalgaard, Peter

    2009-01-01

    Methods for generalized analysis of variance based on multivariate normal theory have been known for many years. In a repeated measurements context, it is most often of interest to consider transformed responses, typically within-subject contrasts or averages. Efficiency considerations leads...

  5. On balanced minimal repeated measurements designs

    Directory of Open Access Journals (Sweden)

    Shakeel Ahmad Mir

    2014-10-01

    Full Text Available Repeated Measurements designs are concerned with scientific experiments in which each experimental unit is assigned more than once to a treatment either different or identical. This class of designs has the property that the unbiased estimators for elementary contrasts among direct and residual effects are obtainable. Afsarinejad (1983 provided a method of constructing balanced Minimal Repeated Measurements designs p < t , when t is an odd or prime power, one or more than one treatment may occur more than once in some sequences and  designs so constructed no longer remain uniform in periods. In this paper an attempt has been made to provide a new method to overcome this drawback. Specifically, two cases have been considered                RM[t,n=t(t-t/(p-1,p], λ2=1 for balanced minimal repeated measurements designs and  RM[t,n=2t(t-t/(p-1,p], λ2=2 for balanced  repeated measurements designs. In addition , a method has been provided for constructing              extra-balanced minimal designs for special case RM[t,n=t2/(p-1,p], λ2=1.

  6. Metabolic rate variation over adult lifetime in the butterfly Vanessa cardui (Nymphalidae: Nymphalinae): aging, feeding, and repeatability.

    Science.gov (United States)

    Woods, William A; Wood, C A L; Ebersole, John; Stevenson, R D

    2010-01-01

    Questions about the adaptive importance of metabolic rate can be approached only when measurements of differences between individuals are repeatable. We made daily measurements of CO(2) production, body mass, and food uptake over the adult life span of unmated Vanessa cardui kept under constant environmental conditions in both fed and unfed treatments. Mass and CO(2) production generally declined with age in both treatments, though with much day-to-day variability in the fed treatment. For the full samples, metabolic rate was repeatable for the unfed treatment (repeatability r = 0.60) but not for the fed treatment (r = 0.03). Differences between fed and unfed individuals of the same age range were repeatable for the unfed treatment (r = 0.39) but not for the fed treatment (r = -0.20). Removing age effects on CO(2) production yielded still higher repeatability in the unfed treatment (r = 0.83), though not in fed butterflies of the same age range (r = -0.02). However, repeatability of CO(2) production of fed butterflies increased sharply with age, rising to 0.82 for butterflies age 8-10 d. Although food uptake mass was repeatable (r = 0.52), feeding history explained little variation in CO(2) production. We conclude that for V. cardui and possibly for other insects of similar feeding habit, variation in metabolic rate between individuals is best represented by measurements of unfed individuals of the same age or of older fed individuals.

  7. Sea-Level Rise Impacts on Hudson River Marshes

    Science.gov (United States)

    Hooks, A.; Nitsche, F. O.

    2015-12-01

    The response of tidal marshes to increasing sea-level rise is uncertain. Tidal marshes can adapt to rising sea levels through vertical accretion and inland migration. Yet tidal marshes are vulnerable to submergence if the rate of sea-level rise exceeds the rate of accretion and if inland migration is limited by natural features or development. We studied how Piermont and Iona Island Marsh, two tidal marshes on the Hudson River, New York, would be affected by sea-level rise of 0.5m, 1m, and 1.5m by 2100. This study was based on the 2011-2012 Coastal New York LiDAR survey. Using GIS we mapped sea-level rise projections accounting for accretion rates and calculated the submerged area of the marsh. Based on the Hudson River National Estuarine Research Reserve Vegetation 2005 dataset, we studied how elevation zones based on vegetation distributions would change. To evaluate the potential for inland migration, we assessed land cover around each marsh using the National Land Cover Database 2011 Land Cover dataset and examined the slope beyond the marsh boundaries. With an accretion rate of 0.29cm/year and 0.5m of sea-level rise by 2100, Piermont Marsh would be mostly unchanged. With 1.5m of sea-level rise, 86% of Piermont Marsh would be flooded. For Iona Island Marsh with an accretion rate of 0.78cm/year, sea-level rise of 0.5m by 2100 would result in a 4% expansion while 1.5m sea-level rise would cause inundation of 17% of the marsh. The results indicate that Piermont and Iona Island Marsh may be able to survive rates of sea-level rise such as 0.5m by 2100 through vertical accretion. At rates of sea-level rise like 1.5m by 2100, vertical accretion cannot match sea-level rise, submerging parts of the marshes. High elevations and steep slopes limit Piermont and Iona Island Marsh's ability to migrate inland. Understanding the impacts of sea-level rise on Piermont and Iona Island Marsh allows for long-term planning and could motivate marsh conservation programs.

  8. RepeatsDB 2.0: improved annotation, classification, search and visualization of repeat protein structures

    Science.gov (United States)

    Paladin, Lisanna; Hirsh, Layla; Piovesan, Damiano; Andrade-Navarro, Miguel A.; Kajava, Andrey V.; Tosatto, Silvio C.E.

    2017-01-01

    RepeatsDB 2.0 (URL: http://repeatsdb.bio.unipd.it/) is an update of the database of annotated tandem repeat protein structures. Repeat proteins are a widespread class of non-globular proteins carrying heterogeneous functions involved in several diseases. Here we provide a new version of RepeatsDB with an improved classification schema including high quality annotations for ∼5400 protein structures. RepeatsDB 2.0 features information on start and end positions for the repeat regions and units for all entries. The extensive growth of repeat unit characterization was possible by applying the novel ReUPred annotation method over the entire Protein Data Bank, with data quality is guaranteed by an extensive manual validation for >60% of the entries. The updated web interface includes a new search engine for complex queries and a fully re-designed entry page for a better overview of structural data. It is now possible to compare unit positions, together with secondary structure, fold information and Pfam domains. Moreover, a new classification level has been introduced on top of the existing scheme as an independent layer for sequence similarity relationships at 40%, 60% and 90% identity. PMID:27899671

  9. Capillary rise with velocity-dependent dynamic contact angle.

    Science.gov (United States)

    Popescu, M N; Ralston, J; Sedev, R

    2008-11-04

    The classic description of the rate of capillary rise given by the Washburn equation, which assumes that the contact angle preserves the equilibrium value at all times, has been recently questioned in the light of the known experimental dependence of the dynamic contact angle on the velocity of the contact line. For a number of such proposed functions of velocity for the dynamic contact angle, we analyze the resulting dependences of the contact angle and of the time of rise, respectively, on the height of the capillary rise. By applying our results to the particular cases of a high-viscosity silicone oil and water, respectively, in a glass capillary, we show that, in general, strong similarities arise between the various approaches and the classic theory in what concerns the time dependence of the capillary rise, which explains the lack of consistent experimental evidence for deviations in the rate of capillary rise from the Washburn equation. However, for a strong dependency of the contact angle on the velocity in the range of small velocities, as in the case of water on glass, one of the models predicts significant deviations even for the time dependence of the capillary rise. Moreover, our results show that the time or height dependence of the contact angle during the capillary rise can clearly discriminate between the various models.

  10. Potential impact of sea level rise on French islands worldwide

    Directory of Open Access Journals (Sweden)

    Celine Bellard

    2013-11-01

    Full Text Available Although sea level rise is one of the most certain consequences of global warming, yet it remains one of the least studied. Several studies strongly suggested that sea level rise will accelerate in the future with a potentially rise from 0.5 to 2 m at the end of the century. However, currently island conservation programs do not take into account the potential effects of sea level rise. Therefore, we investigated the potential consequences of sea level rise for 1,269 French islands worldwide, by assessing the total number of island that will be totally submerged for three different scenarios (1, 2 and 3 m. Under the worst scenario, up to 12% of all islands could be entirely submerged. Two regions displayed the most significant loss of island: New Caledonia and French Polynesia. Focusing on New Caledonia, we highlighted that endemic plant species that are already classified as critically endangered by the IUCN will be the most vulnerable to sea level rise. Losses of insular habitats will thus be important in the next decades for the French islands. Given that French islands covers all latitudes in the Pacific, Indian and Atlantic oceans and in the Mediterranean, our results suggested that the implications for the 180 000 islands around the world should be considerable. Therefore, decision makers are required to define island conservation priorities that will suffer of the future sea level rise.

  11. The Paris Agreement's imprint on 2300 sea level rise

    Science.gov (United States)

    Mengel, Matthias; Nauels, Alexander; Rogelj, Joeri; Schleussner, Carl-Friedrich

    2017-04-01

    The 2015 Paris Agreement aims at reducing climate-related risks by putting a limit to global mean temperature increase. Furthermore, global greenhouse gas emissions should peak as soon as possible and reach net-zero in the second half of the 21st century under the agreement. Sea level rise is one of the major impacts of climate change and will continue for long after emissions have ceased. Here we quantify the effect of near-term and long-term emissions constraints of the Paris Agreement on climate-driven sea level rise until 2300 using a contribution-based methodology that is consistent with the IPCC AR5 sea level estimates. We study median sea level rise for scenarios stabilizing global mean temperatures between 1.5° C and 2° C above pre-industrial levels and net-zero greenhouse gas emission scenarios that lead to declining temperatures. Once global mean temperatures pass 1.5 °C, sea level rise below one meter until 2300 is out of reach for temperature stabilization scenarios. Net-zero emissions can reduce sea level rise caused by temperature overshoot only within limits. By linking sea level rise to near-term mitigation action, we find that delayed near-term mitigation action leads to increased sea level rise far beyond 2100.

  12. Probing into the Theories on the Rise of Great Powers

    Institute of Scientific and Technical Information of China (English)

    Yang Wenjing

    2004-01-01

    @@ The existent international relations theory has not given a clear definition of "the rise of great powers," and "rising" is also not a fundamental concept in international relations or world politics. However, for whatever version of international relations history, it must be a recounting of the relations between countries that rise and fall; and for whatever international relations theory, it must admit the fact that the rise and fall of great powers is one of the natural laws characterized international relations development. As Paul Kennedy puts it, the "relative strengths of the leading nations in world affairs never remain constant, principally because of the uneven rate of growth among different societies and of the technological and organizational breakthroughs which bring a greater advantage to one society than to another."① Therefore, it can be said that theories related to "the rise of great powers" are so common, particularly concentrating on the possible influence of the rising power and its relations with war, the means and policies to deal with it as well as how to realize the peaceful transition of power. This article intends to explore and summarize all these theories and also make some comments based on the rise of China.

  13. The Designand Research ofthe Elderly Portable Outdoor Leisure Deck Chair%老年人可携式户外休闲躺椅的设计研究

    Institute of Scientific and Technical Information of China (English)

    李竞杰; 张荣强; 周敏

    2015-01-01

    Safe high quality sleep and convenient independence standing is the elderly expectation and is also necessary to a healthy life. By studying the market situation and development trend of the elderly outdoor leisure deck chairs, combined with the design theory, analysing the problems of existing outdoor leisure deck chairs and living needs of the elderly, individual auxiliary deck chair design strategies are put forward. By studying the "people - outdoor leisure chair- environment" system coordination key factor analysis, and comprehensive analysis of the characteristics of the elderly in the current environment and auxiliary products, research content involves the feasibility of the development, modeling structure, color materials and function, applying ergonomics research methods, design a new type of portable deck chair which meets the elderly physiological and psychological needs, to solve the problem of the elderly sleep and stand dififculties. This research of design concept provides a basis for the elderly outdoor leisure deck chair and has a promotional and practical value in the ifeld of industrial design.%安稳高质量的睡眠和方便独立性的站立是老年人期望也是健康生活所必须的。本文通过研究老年人户外休闲躺椅的市场现状和发展趋势,结合掌握的设计理论,对现有户外躺椅的存在问题以及老年人的生活需求进行了分析,提出了个体辅助躺椅的设计策略;通过研究“人—户外休闲躺椅—环境”系统相互协调的关键因素分析,综合分析老年人当前环境和辅助产品的特点,并运用人机工程学的研究方法,内容涉及开发可行性、造型结构、色彩材质和功能动力等方面的研究,设计了一款满足老年人生理和心理需求的新型可携式户外休闲躺椅,解决老年人睡眠和站立困难等问题。本文设计理念的研究为老年人户外休闲躺椅进一步提供了依据,在工业设计

  14. 47 CFR 80.1179 - On-board repeater limitations.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false On-board repeater limitations. 80.1179 Section... On-board repeater limitations. When an on-board repeater is used, the following limitations must be met: (a) The on-board repeater antenna must be located no higher than 3 meters (10 feet) above...

  15. Anthropogenic forcing dominates sea level rise since 1850

    DEFF Research Database (Denmark)

    Jevrejeva, Svetlana; Grinsted, Aslak; Moore, John

    2009-01-01

    The rate of sea level rise and its causes are topics of active debate. Here we use a delayed response statistical model to attribute the past 1000 years of sea level variability to various natural (volcanic and solar radiative) and anthropogenic (greenhouse gases and aerosols) forcings. We show...... that until 1800 the main drivers of sea level change are volcanic and solar radiative forcings. For the past 200 years sea level rise is mostly associated with anthropogenic factors. Only 4 ± 1.5 cm (25% of total sea level rise) during the 20th century is attributed to natural forcings, the remaining 14 ± 1...

  16. Geochemistry and age of Shatsky, Hess, and Ojin Rise seamounts: Implications for a connection between the Shatsky and Hess Rises

    Science.gov (United States)

    Tejada, Maria Luisa G.; Geldmacher, Jörg; Hauff, Folkmar; Heaton, Daniel; Koppers, Anthony A. P.; Garbe-Schönberg, Dieter; Hoernle, Kaj; Heydolph, Ken; Sager, William W.

    2016-07-01

    Shatsky Rise in the Northwest Pacific is the best example so far of an oceanic plateau with two potential hotspot tracks emanating from it: the linear Papanin volcanic ridge and the seamounts comprising Ojin Rise. Arguably, these hotspot tracks also project toward the direction of Hess Rise, located ∼1200 km away, leading to speculations that the two plateaus are connected. Dredging was conducted on the massifs and seamounts around Shatsky Rise in an effort to understand the relationship between these plateaus and associated seamounts. Here, we present new 40Ar/39Ar ages and trace element and Nd, Pb, and Hf isotopic data for the recovered dredged rocks and new trace elements and isotopic data for a few drill core samples from Hess Rise. Chemically, the samples can be subdivided into plateau basalt-like tholeiites and trachytic to alkalic ocean-island basalt compositions, indicating at least two types of volcanic activity. Tholeiites from the northern Hess Rise (DSDP Site 464) and the trachytes from Toronto Ridge on Shatsky's TAMU massif have isotopic compositions that overlap with those of the drilled Shatsky Rise plateau basalts, suggesting that both Rises formed from the same mantle source. In contrast, trachytes from the southern Hess Rise (DSDP Site 465A) have more radiogenic Pb isotopic ratios that are shifted toward a high time-integrated U/Pb (HIMU-type mantle) composition. The compositions of the dredged seamount samples show two trends relative to Shatsky Rise data: one toward lower 143Nd/144Nd but similar 206Pb/204Pb ratios, the other toward similar 143Nd/144Nd but more radiogenic 206Pb/204Pb ratios. These trends can be attributed to lower degrees of melting either from lower mantle material during hotspot-related transition to plume tail or from less refractory shallow mantle components tapped during intermittent deformation-related volcanism induced by local tectonic extension between and after the main volcanic-edifice building episodes on Shatsky

  17. Using maya chair during the expulsive phase of delivery and its relation to the lower incidence of episiotomy or perineal tears

    Directory of Open Access Journals (Sweden)

    Laura López Quirós

    2014-04-01

    Full Text Available The aims of this article is to present the results obtained from the development of a clinical question about using maya obstetric chair during the expulsive phase of delivery and its relation to the lower incidence of episiotomy and perineal tears. In traditional cultures, the women give birth naturally in vertical positions as kneeling, standing, among others. In Western societies, physicians have influenced women will deliver in the supine position, sometimes with legs raised using stirrups. For women of our country is difficult to adopt "alternative" positions that have traditionally been seen as 'normal'. The maya chair is used in the countries of South America, and it appears to be an effective way to prevent perineal tears and the lower incidence of episiotomy duringchildbirth. To carry out this secondary research methodology for clinical practice based on evidence that consists of five steps was used. A question was developed in PICO format (patient, intervention, comparison and observation, then an information search was performed in different databases like Ebsco Host, Google Scholar, PubMed, Medline plus, Embase. 30 articles were found, were analyzed according to the criteria set FCL version 2.0, of which only one was close to answering the clinical question. Information was socialized in a formalpresentation by CIEBE-CR. It is conclude that there is insufficient evidence that the use of maya chair during theexpulsive phase of delivery significantly reduces the risk of perianal tear and lower incidence of episiotomy.

  18. 基于模糊控制的智能按摩椅研究%Reseach of intelligent massage chair based on fuzzy control

    Institute of Scientific and Technical Information of China (English)

    林朝阳; 陈临强; 任彧; 唐斌

    2011-01-01

    Aiming at the uncertainty of model parameters in control system of the massage chair,a fuzzy control method was proposed, which used the deviation and deviation rate of the user's heart rate as the input of the fuzzy control system to achieve intelligentized massage.The general structure of the intelligent massage chair was analyzed,then the design and implementation of fuzzy controller were introduced. Finally,experimental results were tested and analyzed.The results show that the method provides a viable technical reference to improve the intelligence level of massage chair.%针对按摩椅中控制系统模型参数不确定的特性,提出了一种基于模糊控制的智能按摩椅实现方法,该方法将用户按摩时心率偏差与心率偏差的变化率作为模糊控制器的输入参数,实现了智能化的按摩.首先给出了智能按摩椅总体结构,然后介绍了模糊控制器的设计和实现方法,最后对实验结果进行了测试和分析.研究结果表明,该方法为迸一步提升按摩椅的智能化水平提供了可行的技术参考.

  19. In vivo evaluation of three-dimensional of volumetric changes using a CAD/CAM chair-side system: Technical procedure

    Science.gov (United States)

    Ferreiroa, Alberto; Pascual-Moscardó, Agustín; Fons-Font, Antonio; Solá-Ruíz, María-Fernanda

    2017-01-01

    An intraoral digital scanner in combination with specialized three-dimensional surface analysis software monitors volumetric changes to soft tissues or dental restorations. This technology can evaluate the success of a specific technique or medium- or long-term clinical outcomes in both clinical and research situations. This article describes how this technology was used to provide immediate chair-side data analysis without the help of specialized laboratory support. Key words:Intraoral scanner, CAD-CAM, best fit-method, surface tessellation language. PMID:28298996

  20. Research and Development Work Carried out by the Chair of Engineering Geodesy and Measurement and Control Systems, Faculty of Geodesy and Cartography WUT - Thematic Scope and Achievements

    Science.gov (United States)

    Nowak, Edward; Malarski, Ryszard; Prószyński, Witold; Sadowska, Alicja; Woźniak, Marek; Zaczek-Peplinska, Janina

    2016-06-01

    Geodetic engineering surveys are an important part of the works carried out by the Faculty of Geodesy and Cartography, Warsaw University of Technology. These works concern measurement techniques as well as advanced result analysis methods applied in precise industrial surveys and in processes controlling object's behaviour over time. The thematic scope of research realised by Chair of Engineering Geodesy and Control-Measuring Systems shows that article related to geodetic engineering measurements and geodetic monitoring is carried out with high intensity, resulting in technological advancement and implementation of new or improved measurement solutions and methods of measurement result development.