WorldWideScience

Sample records for testing giss-mm5 physics

  1. GRE physics test

    CERN Document Server

    Fakhrudin, Hasan

    2010-01-01

    Designed for students and professionals looking to advance their careers, our test prep gives you everything you need to succeed. Focused chapter reviews cover all the information tested on the GRE Physics exam. Each review chapter contains examples to reinforce key concepts. The book includes four full-length practice tests based on the most recent GRE Physics exam. Each test contains every type of question that can be expected on the GRE so you can “practice for real” and boost your confidence before taking the exam.

  2. The Physics IQ Test

    Science.gov (United States)

    Berg, Richard

    2003-04-01

    The assembled throngs vote on the outcomes of "brain-teaser" type physics questions that involve elementary physics but may contain some counterintuitive or unexpected result. Following each vote, the students are allowed to discuss the question among each other and a second vote is taken. The question is then answered by performing a demonstration experiment. This procedure is used to encourage students to discuss how the laws of physics are applied to real physical situations and to learn from each other. Demonstrations of this type have been used successfully in a large range of classes at the University of Maryland, and have also been used to pique the interest of pre-college students in taking physics classes.

  3. Physical Penetration Testing: A Whole New Story in Penetration Testing

    NARCIS (Netherlands)

    Dimkov, T.; Pieters, Wolter

    2011-01-01

    Physical penetration testing plays an important role in assuring a company that the security policies are properly enforced and that the security awareness of the employees is on the appropriate level. In physical penetration tests the tester physically enters restricted locations and directly

  4. Magnetoelectrostatic thruster physical geometry tests

    Science.gov (United States)

    Ramsey, W. D.

    1981-01-01

    Inert gas tests are conducted with several magnetoelectrostatic containment discharge chamber geometries. The configurations tested include three discharge chamber lengths; three boundary magnet patterns; two different flux density magnet materials; hemispherical and conical shaped thrusters having different surface-to-volume ratios; and two and three grid ion optics. Argon mass utilizations of 60 to 79% are attained at 210 to 280 eV/ion in different test configurations. Short hemi thruster configurations are found to produce 70 to 92% xenon mass utilization at 185 to 220 eV/ion.

  5. Construct Validity of Physical Fitness Tests

    Science.gov (United States)

    2011-02-03

    Medicine and Science in Sports and Exercise , 21, 319-324. *Fleishman, E. A. (1964). The structure and measurement of physical fitness. Englewood Cliffs...sprint and distance runners. Medicine and Science in Sports and Exercise , 19, 56-61. Physical Fitness Test Validity 25 *Tornvall, G. (1963

  6. Effective Teaching Practices during Physical Fitness Testing

    Science.gov (United States)

    Stewart, Amanda; Elliot, Steven; Boyce, B. Ann; Block, Martin E.

    2005-01-01

    Participation in fitness tests is among the most common memories many adults hold of physical education class. If students have a negative attitude towards fitness testing, they may be less likely to assess their own progress once they graduate. These negative attitudes often promote lifestyle choices that support participation in at-risk…

  7. Production test-080, physics testing at D reactor deactivation

    Energy Technology Data Exchange (ETDEWEB)

    Bailey, G.F.

    1967-06-15

    The purpose of this test is to provide a set of experimental data to test a compute code frequently used in nuclear safety analyses and to explore certain experimental techniques which may prove extremely valuable in the future. In addition, some basic physics parameters which will be measured may be used in an assessment of the feasibility of using a deactivated Hanford reactor for space-dependent transient tests.

  8. Tests of the particle physics-physical cosmology interface

    International Nuclear Information System (INIS)

    Schramm, D.N.

    1993-01-01

    Three interrelated interfaces of particle physics and physical cosmology are discussed: (1) inflation and other phase transitions; (2) Big Bang Nucleosynthesis (and also the quark-hadron transition); and (3) structure formation (including dark matter). Recent observations that affect each of these topics are discussed. Topic number 1 is shown to be consistent with the COBE observations but not proven and it may be having problems with some age-expansion data. Topic number 2 has now been well-tested and is an established ''pillar'' of the Big Bang. Topic number 3 is the prime arena of current physical cosmological activity. Experiments to resolve the current exciting, but still ambiguous, situation following the COBE results are discussed

  9. Testing for Classicality of a Physical System

    Science.gov (United States)

    Dorninger, Dietmar; Länger, Helmut

    2013-04-01

    Often quantum logics are algebraically modelled by orthomodular posets. The physical system described by such a quantum logic is classical if and only if the corresponding orthomodular poset is a Boolean algebra. We provide an easy testing procedure for this case. Moreover, we characterize orthomodular posets which are lattices and consider orthomodular posets which admit a full set of states and hence represent so-called spaces of numerical events. This way further test procedures are obtained.

  10. Project Physics Tests 4, Light and Electromagnetism.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Test items relating to Project Physics Unit 4 are presented in this booklet. Included are 70 multiple-choice and 22 problem-and-essay questions. Concepts of light and electromagnetism are examined on charges, reflection, electrostatic forces, electric potential, speed of light, electromagnetic waves and radiations, Oersted's and Faraday's work,…

  11. Physical Readiness Testing of Surface Warfare Officers

    Science.gov (United States)

    1991-06-01

    NA% I PHISICAL READIiESS TEST (PRT QUEST1OthAIRE I. hE ARE CONDUCTI NG THESIS RESEAR H 0N HO- ELL THE PRT SUPPORT5 TNE R 0 T i E 0F St RF AC E ’ARAR...AD-A245 519 NAVAL POSTGRADUATE SCHOOL Monterey, California DTIC CTE.EC a% FEB071992 CI THESIS Physical Readiness Testing of Surface Warfare Officers...READINESS TESTING OF SURFACE WARFARE OFFICERS 12. PERSONAL AUTHOR(S) Hatch, William D. II and Swinney, Lori D. 13a. TYPE OF REPORT 13b. TIME COVERED 14

  12. Testing fundamental physics with gravitational waves

    CERN Multimedia

    CERN. Geneva

    2017-01-01

    The landmark detection of gravitational waves (GWs) has opened a new era in physics, giving access to the hitherto unexplored strong-gravity regime, where spacetime curvature is extreme and the relevant speed is close to the speed of light. In parallel to its countless astrophysical applications, this discovery can have also important implications for fundamental physics. In this context, I will discuss some outstanding, cross-cutting problems that can be finally investigated in the GW era: the nature of black holes and of spacetime singularities, the limits of classical gravity, the existence of extra light fields, and the effects of dark matter near compact objects. Future GW measurements will provide unparalleled tests of quantum-gravity effects at the horizon scale, exotic compact objects, ultralight dark matter, and of general relativity in the strong-field regime.

  13. 49 CFR 179.500-7 - Physical tests.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Physical tests. 179.500-7 Section 179.500-7...-7 Physical tests. (a) Physical tests shall be made on two test specimens 0.505 inch in diameter... tank. These test specimen ring sections or prolongations shall be heat treated, with the necked-down...

  14. Developing Effective Physical Fitness Testing Standards for Pre Service Physical Educators

    Science.gov (United States)

    Hill, Kory; Thornburg, Roland

    2016-01-01

    Physical educators are often held to a higher standard of physical fitness. The ability to effectively convey the importance of physical fitness may depend upon the ability to appear physically fit. The ability to perform at a minimal level of proficiency on fitness tests was deemed important by the faculty of one physical education teacher…

  15. Fitness Testing in Physical Education--A Misdirected Effort in Promoting Healthy Lifestyles and Physical Activity?

    Science.gov (United States)

    Cale, Lorraine; Harris, Jo

    2009-01-01

    Background: Physical fitness testing is commonplace within schools and the physical education (PE) curriculum, with advocates claiming one of the key purposes of testing to be the promotion of healthy lifestyles and physical activity. Despite this, much controversy has surrounded the fitness testing of young people. Purpose: This paper draws on…

  16. Teacher testing and implications for physical education

    OpenAIRE

    O'Sullivan, Mary; Tannehill, Deborah

    1990-01-01

    peer-reviewed There has been a dramatic increase in teacher testing in the last decade. State and national attention to this issue is evidenced by the amount of literature devoted to assessment in general and teacher testing in particular. An invitational conference was held last fall by the Educational Testing Service (ETS) to provide a forum for clarifying issues regarding uses of standardized tests in American education in general and teacher testing in particular. Flippo...

  17. Two methodologies for physical penetration testing using social engineering

    NARCIS (Netherlands)

    Dimkov, T.; van Cleeff, A.; Pieters, Wolter; Hartel, Pieter H.

    2010-01-01

    Penetration tests on IT systems are sometimes coupled with physical penetration tests and social engineering. In physical penetration tests where social engineering is allowed, the penetration tester directly interacts with the employees. These interactions are usually based on deception and if not

  18. Startup physics tests at Temelin NPP, Unit 1

    International Nuclear Information System (INIS)

    Sedlacek, M.; Minarcin, M.; Toth, L.; Elko, M.; Hascik, R.

    2002-01-01

    The objective, scope and proceedings of the physics tests of Temelin NPP, Unit 1 physical commissioning are given in this paper. Furthermore, some results of selected physics tests are presented: reactor initial criticality test, determination of reactor power range for physics testing, measurement of control rod cluster assembly group no. 10 reactivity worth in case of limitation system LS(a) actuation, control rod cluster assembly system reactivity worth measurement with single rod cluster assembly of greatest reactivity worth stuck in fully withdrawn position, measurement of differential reactivity worth of control rod cluster assembly group no. 9, boron 'endpoint' determination and measurement of power reactivity coefficient (Authors)

  19. ICHPER-SD Asia Youth Health Related Physical Fitness Test.

    Science.gov (United States)

    Journal of the International Council for Health, Physical Education, Recreation, Sport, and Dance, 1994

    1994-01-01

    Presents necessary information for administering the ICHPER-SD Asia Youth Health Related Physical Fitness Test, including descriptions of and scoring for each test item, needed equipment, notes, and suggested preparations for test leaders. The test includes the endurance run, situps in 60 seconds, pullups, sit and reach test, and skinfold…

  20. Effects of Vigorous Intensity Physical Activity on Mathematics Test Performance

    Science.gov (United States)

    Phillips, David S.; Hannon, James C.; Castelli, Darla M.

    2015-01-01

    The effect of an acute bout of physical activity on academic performance in school-based settings is under researched. The purpose of this study was to examine associations between a single, vigorous (70-85%) bout of physical activity completed during physical education on standardized mathematics test performance among 72, eighth grade students…

  1. ACL injury: How do the physical examination tests compare?

    Science.gov (United States)

    Koster, Christiaan H; Harmsen, Annelieke Mk; Lichtenberg, Miranda C; Bloemers, Frank W

    2018-03-01

    Three physical examination tests are most commonly used to evaluate cruciate ligament injury. The best known and most frequently used technique is the anterior drawer test. The other 2 tests, the Lachman test and the pivot shift test, are more difficult to perform and are used less often, especially by physicians untrained in their use. In addition, there is a relatively new diagnostic test: the lever sign test. The aim of our article is to provide a short, clinically relevant overview of the literature and to assess the diagnostic value of physical examination for the primary care physician.

  2. Mathematical Reasoning Requirements in Swedish National Physics Tests

    Science.gov (United States)

    Johansson, Helena

    2016-01-01

    This paper focuses on one aspect of mathematical competence, namely mathematical reasoning, and how this competency influences students' knowing of physics. This influence was studied by analysing the mathematical reasoning requirements upper secondary students meet when solving tasks in national physics tests. National tests are constructed to…

  3. Statewide Physical Fitness Testing: Perspectives from the Gym

    Science.gov (United States)

    Martin, Scott B.; Ede, Alison; Morrow, James R., Jr.; Jackson, Allen W.

    2010-01-01

    This paper provides observations of physical fitness testing in Texas schools and physical education teachers' insights about large-scale testing using the FITNESSGRAM[R] assessment (Cooper Institute, 2007) as mandated by Texas Senate Bill 530. In the first study, undergraduate and graduate students who were trained to observe and assess student…

  4. Antihydrogen for precision tests in physics

    CERN Document Server

    Charlton, M; Jørgensen, L V; Madsen, N; van der Werf, D P

    2008-01-01

    The creation of atoms of antihydrogen under controlled conditions has opened up a new era in physics with antimatter. We describe the experimental realisation of low energy antihydrogen, via the mixing of carefully prepared clouds of positrons and antiprotons, and some of the progress that has been made in the last few years in characterising properties of the nascent anti-atoms. Ongoing efforts aimed at trapping the anti-atoms in magnetic field minima are discussed. Some of the motivations for undertaking experiments with antihydrogen are presented.

  5. Atomic physics tests of quantum electrodynamics

    International Nuclear Information System (INIS)

    Mohr, P.J.

    1976-08-01

    The tests of quantum electrodynamics derived from bound systems and the free electron and muon magnetic moments are reviewed. The emphasis is on the areas in which recent developments in theory or experiment have taken place. Also determinations of the fine structure constant from the Josephson effect and the fine structure of helium are discussed

  6. Kansas Adapted/Special Physical Education Test Manual. Health Related Fitness and Psychomotor Testing.

    Science.gov (United States)

    Johnson, Robert E.; Lavay, Barry

    This manual was developed to address the need for health-related physical fitness testing of children with special needs. The first section defines the components of health-related physical fitness which consist of: (1)abdominal strength and endurance measured by a sit-up test; (2) flexibility, measured by a sit and reach test; (3) upper body…

  7. Physical Activity and Cervical Cancer Testing among American Indian Women

    Science.gov (United States)

    Muus, Kyle J.; Baker-Demaray, Twyla B.; Bogart, T. Andy; Duncan, Glen E.; Jacobsen, Clemma; Buchwald, Dedra S.; Henderson, Jeffrey A.

    2012-01-01

    Purpose: Studies have shown that women who engage in high levels of physical activity have higher rates of cancer screening, including Papanicalaou (Pap) tests. Because American Indian (AI) women are at high risk for cervical cancer morbidity and mortality, we examined Pap screening prevalence and assessed whether physical activity was associated…

  8. Reliability and Validity Testing of the Physical Resilience Measure

    Science.gov (United States)

    Resnick, Barbara; Galik, Elizabeth; Dorsey, Susan; Scheve, Ann; Gutkin, Susan

    2011-01-01

    Objective: The purpose of this study was to test reliability and validity of the Physical Resilience Scale. Methods: A single-group repeated measure design was used and 130 older adults from three different housing sites participated. Participants completed the Physical Resilience Scale, Hardy-Gill Resilience Scale, 14-item Resilience Scale,…

  9. Geophysical testing of rock and its relationships to physical properties

    Science.gov (United States)

    2011-02-01

    Testing techniques were designed to characterize spatial variability in geotechnical engineering physical parameters of : rock formations. Standard methods using seismic waves, which are routinely used for shallow subsurface : investigation, have lim...

  10. Maximum physical capacity testing in cancer patients undergoing chemotherapy

    DEFF Research Database (Denmark)

    Knutsen, L.; Quist, M; Midtgaard, J

    2006-01-01

    BACKGROUND: Over the past few years there has been a growing interest in the field of physical exercise in rehabilitation of cancer patients, leading to requirements for objective maximum physical capacity measurement (maximum oxygen uptake (VO(2max)) and one-repetition maximum (1RM)) to determine...... in performing maximum physical capacity tests as these motivated them through self-perceived competitiveness and set a standard that served to encourage peak performance. CONCLUSION: The positive attitudes in this sample towards maximum physical capacity open the possibility of introducing physical testing...... early in the treatment process. However, the patients were self-referred and thus highly motivated and as such are not necessarily representative of the whole population of cancer patients treated with chemotherapy....

  11. 300-FF-1 physical separations CERCLA treatability test plan

    International Nuclear Information System (INIS)

    1993-05-01

    This test plan describes specifications, responsibilities, and general procedures to be followed to conduct physical separations soil treatability tests in the north process pond of the 300-FF-1 Operable Unit at the Hanford Site. The overall objective of these tests is to evaluate the use of physical separations systems as a means of concentrating chemical and radioactive contaminants into fine soil fractions, and thereby minimizing waste volumes. If successful, the technology could be applied to clean up millions of cubic meters of contaminated soils at Hanford and other sites. In this document, physical separations refers to a simple and comparatively low cost technology to potentially achieve a significant reduction in the volume of contaminated soils without the use of chemical processes. Removal of metals and radioactive contaminants from the fine fraction of soils may require additional treatment such as chemical extraction, electromagnetic separation, or stabilization. Investigations/testing of these technologies are recommended to assess the economic and technical feasibility of additional treatment, but are not within the scope of this test. This plan provides guidance and specifications for two proposed treatability tests: one to be conducted by Westinghouse Hanford Company; and another proposed as competitive bid service contract. The main body of this test plan discusses the tests in general and items that are common to both tests. Attachment A discusses in detail the EPA system test and Attachment B discusses the vendor test

  12. Physical examination tests for hip dysfunction and injury.

    Science.gov (United States)

    Reiman, Michael P; Mather, Richard C; Cook, Chad E

    2015-03-01

    Physical examination tests for hip dysfunction and injury of the strongest diagnostic accuracy were identified in a recent systematic review with meta-analysis in BJSM. These tests are described in this article. A detailed description of the various different tests is given, with photographs for each test procedure. Diagnostic interpretation of each test requires careful consideration, with special attention to specific variables such as test performance and patient population. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  13. A simulated test of physical starting and reactor physics on zero power facility of PWR

    International Nuclear Information System (INIS)

    Yao Zewu; Ji Huaxiang; Chen Zhicheng; Yao Zhiquan; Chen Chen; Li Yuwen

    1995-01-01

    The core neutron economics has been verified through experiments conducted at a zero power reactor with baffles of various thickness. A simulated test of physical starting of Qinshan PWR has been introduced. The feasibility and safety of the programme are verified. The research provides a valuable foundation for developing physical starting programme

  14. Reliable and sensitive physical testing of elite trapeze sailors

    DEFF Research Database (Denmark)

    Bay, Jonathan; Bojsen-Møller, Jens; Nordsborg, Nikolai Baastrup

    2018-01-01

    It was investigated, if a newly developed discipline specific test for elite-level trapeze sailors is reli-able and sensitive. Furthermore, the physical demands of trapeze sailing were examined. In part 1, nine national team athletes were accustomed to a simulated sailing test, which subsequently...... as peak values were 83.5 ± 11.4% and 89.9 ± 1.7% of max, respectively. In conclusion, the present test is reliable and sensitive, thus providing a sailing specific alternative to traditional physical testing of elite trapeze sailors. Additionally, on-water rac-ing requires moderate aerobic energy...... was completed on four occasions to determine test reliability and sensitivity to manipulations in body-weight. Rope-pulling mean power output (MPO), oxygen consumption (VO2 ), heart rate (HR) and blood lactate values were acquired in all trials. In part 2, six sailors completed on-water racing with concurrent...

  15. Physical separations soil washing system cold test results

    Energy Technology Data Exchange (ETDEWEB)

    McGuire, J.P.

    1993-07-28

    This test summary describes the objectives, methodology, and results of a physical separations soil-washing system setup and shakedown test using uncontaminated soil. The test is being conducted in preparation for a treatability test to be conducted in the North Pond of the 300-FF-1 Operable Unit. It will be used to assess the feasibility of using a physical separations process to reduce the volume of contaminated soils in the 300-FF-1 Operable Unit. The test is described in DOE-RL (1993). The setup test was conducted at an uncontrolled area located approximately 3.2 km northwest of the 300-FF-1 Operable Unit. The material processed was free of contamination. The physical separation equipment to be used in the test was transferred to the US Department of Energy (DOE) by the US Environmental Protection Agency (EPA) Risk Reduction Engineering Laboratory. On May 13, 1993, soil-washing equipment was moved to the cold test location. Design assistance and recommendation for operation was provided by the EPA.

  16. A test harness for accelerating physics parameterization advancements into operations

    Science.gov (United States)

    Firl, G. J.; Bernardet, L.; Harrold, M.; Henderson, J.; Wolff, J.; Zhang, M.

    2017-12-01

    The process of transitioning advances in parameterization of sub-grid scale processes from initial idea to implementation is often much quicker than the transition from implementation to use in an operational setting. After all, considerable work must be undertaken by operational centers to fully test, evaluate, and implement new physics. The process is complicated by the scarcity of like-to-like comparisons, availability of HPC resources, and the ``tuning problem" whereby advances in physics schemes are difficult to properly evaluate without first undertaking the expensive and time-consuming process of tuning to other schemes within a suite. To address this process shortcoming, the Global Model TestBed (GMTB), supported by the NWS NGGPS project and undertaken by the Developmental Testbed Center, has developed a physics test harness. It implements the concept of hierarchical testing, where the same code can be tested in model configurations of varying complexity from single column models (SCM) to fully coupled, cycled global simulations. Developers and users may choose at which level of complexity to engage. Several components of the physics test harness have been implemented, including a SCM and an end-to-end workflow that expands upon the one used at NOAA/EMC to run the GFS operationally, although the testbed components will necessarily morph to coincide with changes to the operational configuration (FV3-GFS). A standard, relatively user-friendly interface known as the Interoperable Physics Driver (IPD) is available for physics developers to connect their codes. This prerequisite exercise allows access to the testbed tools and removes a technical hurdle for potential inclusion into the Common Community Physics Package (CCPP). The testbed offers users the opportunity to conduct like-to-like comparisons between the operational physics suite and new development as well as among multiple developments. GMTB staff have demonstrated use of the testbed through a

  17. Test-retest reliability of a questionnaire to assess physical environmental factors pertaining to physical activity

    Directory of Open Access Journals (Sweden)

    McGinn Aileen P

    2005-06-01

    Full Text Available Abstract Background Despite the documented benefits of physical activity, many adults do not obtain the recommended amounts. Barriers to physical activity occur at multiple levels, including at the individual, interpersonal, and environmental levels. Only until more recently has there been a concerted focus on how the physical environment might affect physical activity behavior. With this new area of study, self-report measures should be psychometrically tested before use in research studies. Therefore the objective of this study was to document the test-retest reliability of a questionnaire designed to assess physical environmental factors that might be associated with physical activity in a diverse adult population. Methods Test and retest surveys were conducted over the telephone with 106 African American and White women and men living in either Forsyth County, North Carolina or Jackson, Mississippi. Reliability of self-reported environmental factors across four domains (e.g., access to facilities and destinations, functionality and safety, aesthetics, natural environment was determined using intraclass correlation coefficients (ICC overall and separately by gender and race. Results Generally items displayed moderate and sometimes substantial reliability (ICC between 0.4 to 0.8, with a few differences by gender or race, across each of the domains. Conclusion This study provides some psychometric evidence for the use of many of these questions in studies examining the effect of self-reported physical environmental measures on physical activity behaviors, among African American and White women and men.

  18. Physiological capacity and physical testing in male elite team handball

    DEFF Research Database (Denmark)

    Michalsik, Lars Bojsen; Madsen, K.; Aagaard, P.

    2015-01-01

    and by subsequent physical testing. RESULTS: Mean heart rate and relative workload during match-play (N.=41) were 163 ± 5 beats·min⁻¹ (group means±SD) and 70.9 ± 6.0% of VO(2-max), respectively. Relative workload was lower (P... and high demands on the anaerobic energy systems during certain periods of the match. Indications of temporary fatigue and a subsequent decline in performance were observed, since the relative workload decreased both in the first and in the second half of the match. Physiological profiles and physical test......AIM: The aim of the present study was to examine the physical demands placed on male elite team handball players in relation to playing position. METHODS: Male elite team handball field players were evaluated during match-play over a six season time span using physiological measurements...

  19. Classroom Tests and Achievement in Problem Solving in Physical Geography

    Science.gov (United States)

    Monk, Janice J.; Stallings, William M.

    1975-01-01

    Two hundred students in an undergraduate physical geography course were assigned to a group which received either factually oriented quizzes or quizzes which stressed higher level behaviors such as application and analysis. Evaluation of the results indicated that the variation in testing procedures had no discernable effect on student scores in…

  20. Measuring damage in physical model tests of rubble mounds

    NARCIS (Netherlands)

    Hofland, B.; Rosa-Santos, Paulo; Taveira-Pinto, Francisco; Lemos, Rute; Mendonça, A.; Juana Fortes, C

    2017-01-01

    This paper studies novel ways to evaluate armour damage in physical models of coastal structures. High-resolution damage data for reference rubble mound breakwaters obtained under the HYDRALAB+ joint-research project are analysed and discussed. These tests are used to analyse the way to describe

  1. Two methodologies for physical penetration testing using social engineering

    NARCIS (Netherlands)

    Dimkov, T.; Pieters, Wolter; Hartel, Pieter H.

    2009-01-01

    During a penetration test on the physical security of an organization, if social engineering is used, the penetration tester directly interacts with the employees. These interactions are usually based on deception and if not done properly can upset the employees, violate their privacy or damage

  2. Benchmark and physics testing of LIFE-4C. Summary

    International Nuclear Information System (INIS)

    Liu, Y.Y.

    1984-06-01

    LIFE-4C is a steady-state/transient analysis code developed for performance evaluation of carbide [(U,Pu)C and UC] fuel elements in advanced LMFBRs. This paper summarizes selected results obtained during a crucial step in the development of LIFE-4C - benchmark and physics testing

  3. Principles of Technology Student Achievement in Advanced Physics Measured by a Normed Physics Test.

    Science.gov (United States)

    Nicholson, James Alan

    1991-02-01

    The Principles of Technology (PT) curriculum, now in approximately 1,200 schools, has produced a profound change in the delivery of applied physics. If high school PT programs and traditional physics courses deliver comparable student outcomes, as some research suggests, the PT curriculum may find wider acceptance in vocational programs and postsecondary schools may have rationale for accepting PT as physics. This study measured PT student performance on an advanced physics test, after they have had one year (7 units) of PT. The 1988R version of the National Association of Physics Teachers and National Science Teachers Association physics test, with more than 7500 copies sold, was selected as the research instrument. This test covers advanced aspects of traditional high school physics. A secondary enquiry included an attempt to link PT teacher preparation and credentialing and/or PT site demographics to variation in PT student scores on the 1988R test. The 10 PT sites in this study were self-selected from the 29 PT field study schools, the most mature PT sites. The researcher determined, that the 1988R physics test lacked content validity for the PT students tested. The PT students tested had a composite mean score of 17.67 questions correct out of 80, (below the second percentile), not statistically different than a chance score. No differences were found between site mean scores. Interpretation of the results regarding the effect of teachers, or demographics was not justified. The value of PT to the vocational-technical programs that it was designed for was not measured, nor was the awarding of general science credit for PT completion. One year of the PT curriculum, at the sampled schools, has not prepared students in the advanced scientific aspects of traditional physics found on the 1988R examination. The primary implication is that educators should not expect year one PT to prepare students for classes or curricula that include traditional physics as a

  4. Asymptotic formulae for likelihood-based tests of new physics

    Science.gov (United States)

    Cowan, Glen; Cranmer, Kyle; Gross, Eilam; Vitells, Ofer

    2011-02-01

    We describe likelihood-based statistical tests for use in high energy physics for the discovery of new phenomena and for construction of confidence intervals on model parameters. We focus on the properties of the test procedures that allow one to account for systematic uncertainties. Explicit formulae for the asymptotic distributions of test statistics are derived using results of Wilks and Wald. We motivate and justify the use of a representative data set, called the "Asimov data set", which provides a simple method to obtain the median experimental sensitivity of a search or measurement as well as fluctuations about this expectation.

  5. Asymptotic formulae for likelihood-based tests of new physics

    Energy Technology Data Exchange (ETDEWEB)

    Cowan, Glen [Royal Holloway, University of London, Physics Department, Egham (United Kingdom); Cranmer, Kyle [New York University, Physics Department, New York, NY (United States); Gross, Eilam; Vitells, Ofer [Weizmann Institute of Science, Rehovot (Israel)

    2011-02-15

    We describe likelihood-based statistical tests for use in high energy physics for the discovery of new phenomena and for construction of confidence intervals on model parameters. We focus on the properties of the test procedures that allow one to account for systematic uncertainties. Explicit formulae for the asymptotic distributions of test statistics are derived using results of Wilks and Wald. We motivate and justify the use of a representative data set, called the ''Asimov data set'', which provides a simple method to obtain the median experimental sensitivity of a search or measurement as well as fluctuations about this expectation. (orig.)

  6. Nuclear physics at PEP: First test and future plans

    International Nuclear Information System (INIS)

    Van Bibber, K.; Dietrich, F.S.; Melnikoff, S.O.

    1986-09-01

    A test run of internal target nuclear physics at the PEP storage ring is described. The Time Projection Chamber (TPC-2γ detector) was used to detect the inelastically scattered electron and complete hadronic final state in the interaction of 14.5 GeV electrons with D 2 , Ar and Xe gas targets. The data comprise mostly low-x low-Q 2 events, but some deep inelastic scattering as well. The future possibilities of a dedicated nuclear physics program at PEP are outlined. 15 refs., 25 figs

  7. Physiological capacity and physical testing in male elite team handball.

    Science.gov (United States)

    Michalsik, L B; Madsen, K; Aagaard, P

    2015-05-01

    The aim of the present study was to examine the physical demands placed on male elite team handball players in relation to playing position. Male elite team handball field players were evaluated during match-play over a six season time span using physiological measurements and by subsequent physical testing. Mean heart rate and relative workload during match-play (N.=41) were 163 ± 5 beats·min⁻¹ (group means±SD) and 70.9 ± 6.0% of VO(2-max), respectively. Relative workload was lower (Pjumping height in "Jump and Reach" testing was 0.71 ± 0.08 m (range: 0.61-0.86 m). Maximal ball throwing speed was observed using the set shot with 3-step run-up (92.8 ± 5.3 km·h⁻¹, range: 75.8-108.2 km·h⁻¹). Modern male elite team handball imposes moderate-to-high demands on the aerobic energy system and high demands on the anaerobic energy systems during certain periods of the match. Indications of temporary fatigue and a subsequent decline in performance were observed, since the relative workload decreased both in the first and in the second half of the match. Physiological profiles and physical test results differed between playing positions, with wing players covering a greater total distance in the Yo-Yo test and showing superior jumping performance and repeated sprint running capacity than backcourt players and pivots.

  8. Physiological capacity and physical testing in male elite team handball

    DEFF Research Database (Denmark)

    Michalsik, Lars Bojsen; Madsen, K; Aagaard, Per

    2015-01-01

    Aim: The aim of the present study was to examine the physical demands placed on male elite team handball (TH) players in relation to playing position. Methods: Male elite TH field players were evaluated during match-play over a six season time span using physiological measurements and by subseque...... physical testing. Results: Mean heart rate and relative workload during match-play (n=41) were 163±5 beats·min-1 (group means±SD) and 70.9±6.0 % of VO2-max, respectively. Relative workload was lower (p......Aim: The aim of the present study was to examine the physical demands placed on male elite team handball (TH) players in relation to playing position. Methods: Male elite TH field players were evaluated during match-play over a six season time span using physiological measurements and by subsequent...

  9. Enhanced Verification Test Suite for Physics Simulation Codes

    Energy Technology Data Exchange (ETDEWEB)

    Kamm, J R; Brock, J S; Brandon, S T; Cotrell, D L; Johnson, B; Knupp, P; Rider, W; Trucano, T; Weirs, V G

    2008-10-10

    This document discusses problems with which to augment, in quantity and in quality, the existing tri-laboratory suite of verification problems used by Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratories (SNL). The purpose of verification analysis is demonstrate whether the numerical results of the discretization algorithms in physics and engineering simulation codes provide correct solutions of the corresponding continuum equations. The key points of this document are: (1) Verification deals with mathematical correctness of the numerical algorithms in a code, while validation deals with physical correctness of a simulation in a regime of interest. This document is about verification. (2) The current seven-problem Tri-Laboratory Verification Test Suite, which has been used for approximately five years at the DOE WP laboratories, is limited. (3) Both the methodology for and technology used in verification analysis have evolved and been improved since the original test suite was proposed. (4) The proposed test problems are in three basic areas: (a) Hydrodynamics; (b) Transport processes; and (c) Dynamic strength-of-materials. (5) For several of the proposed problems we provide a 'strong sense verification benchmark', consisting of (i) a clear mathematical statement of the problem with sufficient information to run a computer simulation, (ii) an explanation of how the code result and benchmark solution are to be evaluated, and (iii) a description of the acceptance criterion for simulation code results. (6) It is proposed that the set of verification test problems with which any particular code be evaluated include some of the problems described in this document. Analysis of the proposed verification test problems constitutes part of a necessary--but not sufficient--step that builds confidence in physics and engineering simulation codes. More complicated test cases, including physics models of

  10. Blind Test of Physics-Based Prediction of Protein Structures

    Science.gov (United States)

    Shell, M. Scott; Ozkan, S. Banu; Voelz, Vincent; Wu, Guohong Albert; Dill, Ken A.

    2009-01-01

    We report here a multiprotein blind test of a computer method to predict native protein structures based solely on an all-atom physics-based force field. We use the AMBER 96 potential function with an implicit (GB/SA) model of solvation, combined with replica-exchange molecular-dynamics simulations. Coarse conformational sampling is performed using the zipping and assembly method (ZAM), an approach that is designed to mimic the putative physical routes of protein folding. ZAM was applied to the folding of six proteins, from 76 to 112 monomers in length, in CASP7, a community-wide blind test of protein structure prediction. Because these predictions have about the same level of accuracy as typical bioinformatics methods, and do not utilize information from databases of known native structures, this work opens up the possibility of predicting the structures of membrane proteins, synthetic peptides, or other foldable polymers, for which there is little prior knowledge of native structures. This approach may also be useful for predicting physical protein folding routes, non-native conformations, and other physical properties from amino acid sequences. PMID:19186130

  11. Differences in gender performance on competitive physics selection tests

    Directory of Open Access Journals (Sweden)

    Kate Wilson

    2016-08-01

    Full Text Available [This paper is part of the Focused Collection on Gender in Physics.] We have investigated gender differences in performance over the past eight years on the Australian Science Olympiad Exam (ASOE for physics, which is taken by nearly 1000 high school students each year. The ASOE, run by Australian Science Innovations (ASI, is the initial stage of the process of selection of teams to represent Australia at the Asian and International Physics Olympiads. Students taking the exam are generally in their penultimate year of school and selected by teachers as being high performing in physics. Together with the overall differences in facility, we have investigated how the content and presentation of multiple-choice questions (MCQs affects the particular answers selected by male and female students. Differences in the patterns of responses by male and female students indicate that males and females might be modeling situations in different ways. Some strong patterns were found in the gender gaps when the questions were categorized in five broad dimensions: content, process required, difficulty, presentation, and context. Almost all questions saw male students performing better, although gender differences were relatively small for questions with a more abstract context. Male students performed significantly better on most questions with a concrete context, although notable exceptions were found, including two such questions where female students performed better. Other categories that showed consistently large gaps favoring male students include questions with projectile motion and other two-dimensional motion or forces content, and processes involving interpreting diagrams. Our results have important implications, suggesting that we should be able to reduce the gender gaps in performance on MCQ tests by changing the way information is presented and setting questions in contexts that are less likely to favor males over females. This is important as MCQ

  12. Differences in gender performance on competitive physics selection tests

    Science.gov (United States)

    Wilson, Kate; Low, David; Verdon, Matthew; Verdon, Alix

    2016-12-01

    [This paper is part of the Focused Collection on Gender in Physics.] We have investigated gender differences in performance over the past eight years on the Australian Science Olympiad Exam (ASOE) for physics, which is taken by nearly 1000 high school students each year. The ASOE, run by Australian Science Innovations (ASI), is the initial stage of the process of selection of teams to represent Australia at the Asian and International Physics Olympiads. Students taking the exam are generally in their penultimate year of school and selected by teachers as being high performing in physics. Together with the overall differences in facility, we have investigated how the content and presentation of multiple-choice questions (MCQs) affects the particular answers selected by male and female students. Differences in the patterns of responses by male and female students indicate that males and females might be modeling situations in different ways. Some strong patterns were found in the gender gaps when the questions were categorized in five broad dimensions: content, process required, difficulty, presentation, and context. Almost all questions saw male students performing better, although gender differences were relatively small for questions with a more abstract context. Male students performed significantly better on most questions with a concrete context, although notable exceptions were found, including two such questions where female students performed better. Other categories that showed consistently large gaps favoring male students include questions with projectile motion and other two-dimensional motion or forces content, and processes involving interpreting diagrams. Our results have important implications, suggesting that we should be able to reduce the gender gaps in performance on MCQ tests by changing the way information is presented and setting questions in contexts that are less likely to favor males over females. This is important as MCQ tests are

  13. 40 CFR 230.61 - Chemical, biological, and physical evaluation and testing.

    Science.gov (United States)

    2010-07-01

    ... appropriate physical and chemical environmental characteristics. (d) Physical tests and evaluation. The effect... physical tests and evaluations as are justified and deemed necessary. Such tests may include sieve tests... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Chemical, biological, and physical...

  14. A regulator's perspective on physical testing for type B packages

    International Nuclear Information System (INIS)

    Brach, William E.

    2004-01-01

    The U.S. Nuclear Regulatory Commission has a great deal of experience certifying Type B transport packages as complying with the regulations in 10 CFR Part 71. With this experience base, supporting risk studies, and with an exceptional historical safety record for transport, we are very confident in both the current regulations and the methods we use to review and certify transportation packages. Nevertheless, we have a responsibility to remain vigilant and review our regulations and implementing practices with a view towards continuous improvement. NRC regulations permit certification through testing, analyses, comparison to similar approved designs, or combinations of these methods. Testing can be further broken into scale models, components, simple models, or full-scale models. NRC does not require full-scale testing for certification of any package; however, many applicants for package certification have conducted a physical testing program to demonstrate that the package design meets the hypothetical accident conditions. The plans for a repository at Yucca Mountain have raised significant interest in the United States of America in transportation of spent fuel, and created a broad stakeholder and public interest in transportation package testing. As an expected large increase in the number of spent fuel transports nears, this interest will likely grow. The technical and regulatory reasons for, or for not, performing tests need to be well understood and communicated to all stakeholders

  15. Stereotype threat? Effects of inquiring about test takers' gender on conceptual test performance in physics

    Science.gov (United States)

    Maries, Alexandru; Singh, Chandralekha

    2015-12-01

    It has been found that activation of a stereotype, for example by indicating one's gender before a test, typically alters performance in a way consistent with the stereotype, an effect called "stereotype threat." On a standardized conceptual physics assessment, we found that asking test takers to indicate their gender right before taking the test did not deteriorate performance compared to an equivalent group who did not provide gender information. Although a statistically significant gender gap was present on the standardized test whether or not students indicated their gender, no gender gap was observed on the multiple-choice final exam students took, which included both quantitative and conceptual questions on similar topics.

  16. Evaluating College Students' Conceptual Knowledge of Modern Physics: Test of Understanding on Concepts of Modern Physics (TUCO-MP)

    Science.gov (United States)

    Akarsu, Bayram

    2011-01-01

    In present paper, we propose a new diagnostic test to measure students' conceptual knowledge of principles of modern physics topics. Over few decades since born of physics education research (PER), many diagnostic instruments that measure students' conceptual understanding of various topics in physics, the earliest tests developed in PER are Force…

  17. Alpha Particle Physics Experiments in the Tokamak Fusion Test Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Budny, R.V.; Darrow, D.S.; Medley, S.S.; Nazikian, R.; Zweben, S.J.; et al.

    1998-12-14

    Alpha particle physics experiments were done on the Tokamak Fusion Test Reactor (TFTR) during its deuterium-tritium (DT) run from 1993-1997. These experiments utilized several new alpha particle diagnostics and hundreds of DT discharges to characterize the alpha particle confinement and wave-particle interactions. In general, the results from the alpha particle diagnostics agreed with the classical single-particle confinement model in magnetohydrodynamic (MHD) quiescent discharges. Also, the observed alpha particle interactions with sawteeth, toroidal Alfvén eigenmodes (TAE), and ion cyclotron resonant frequency (ICRF) waves were roughly consistent with theoretical modeling. This paper reviews what was learned and identifies what remains to be understood.

  18. Clinician-Friendly Physical Performance Tests for the Knee.

    Science.gov (United States)

    Harrison, Jerrod J; Yorgey, Marissa K; Csiernik, Alexander J; Vogler, Joseph H; Games, Kenneth E

    2017-11-01

    Reference:  Hegedus EJ, McDonough S, Bleakley C, Cook CE, Baxter GD. Clinician-friendly lower extremity physical performance measures in athletes: a systematic review of measurement properties and correlation with injury. Part 1: the tests for knee function including the hop tests. Br J Sports Med. 2015;49(10):642-648.   Do individual physical performance tests (PPTs) used as measures for lower extremity function have any relationship to injuries in athletes aged 12 years or older?   Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were used to locate articles. The authors searched PubMed, EMBASE, and SPORTDiscus, in addition to searching by hand. The search strategy combined the terms athlete, lower extremity, and synonyms of performance test with the names of performance tests.   Studies were included if they involved a test that met the operational definition for a PPT. The included studies assessed components of sport function (eg, speed, agility, and power), determined readiness for return to sport, or predicted injury to the lower extremity. All PPT measures could be performed on the field, courtside, or in a gym with affordable, portable, and readily available equipment. Studies were excluded if they made use of 3-dimensional motion capture, force platforms, timing gates, treadmills, stationary bikes, metabolic charts, or another nonportable, costly testing device. Athletes were categorized on the Tegner Scale at a minimum of level 5, which is the lowest level that still encompasses competitive athletes. Studies were included if 50% or more of the participants were rated above 5 on the Tegner Scale. Studies were excluded if the sole purpose was to judge movement quality or range of motion. Studies were selected if they identified the knee or a knee injury as a focal point of the paper.   The Consensus-Based Standards for the Selection of Health Measurement Instruments (COSMIN) was used to critique the

  19. Feasibility and Reliability of Physical Fitness Tests in Older Adults with Intellectual Disability: A Pilot Study

    Science.gov (United States)

    Hilgenkamp, Thessa I. M.; van Wijck, Ruud; Evenhuis, Heleen M.

    2012-01-01

    Background: Physical fitness is relevant for wellbeing and health, but knowledge on the feasibility and reliability of instruments to measure physical fitness for older adults with intellectual disability is lacking. Methods: Feasibility and test-retest reliability of a physical fitness test battery (Box and Block Test, Response Time Test, walking…

  20. Tests of the standard model and searches for new physics

    Energy Technology Data Exchange (ETDEWEB)

    Langacker, Paul [Pennsylvania Univ., PA (United States). Dept. of Physics

    1996-07-01

    Earlier chapters of this volume have detailed described the standard model and its renormalization, the various types of precision experiments, and their implications. This chapter is devoted to global analysis of the Z-pole, M{sub W}, and neutral current data, which contains more information that any one class of experiments. The subsequent sections will summarize some of the relevant data and theoretical formulas, the status of the standard model tests and parameter determinations, the possible classes of new physics, and the implications of the precision experiments. In particular, the model independent analysis of neutral current couplings, which establishes the standard model to first approximation; the implication of supersymmetry; supersymmetric grand unification; and a number if specific types of new physics, including heavy Z{sup '} bosons, new sources of SU{sub 2} breaking, new contributions to the gauge boson self-energies, Zb b-bar vertex corrections, certain types of new 4-Fermi operators and leptoquarks, and the exotic fermions are described.

  1. Medical Physics: Forming and testing solutions to clinical problems.

    Science.gov (United States)

    Tsapaki, Virginia; Bayford, Richard

    2015-11-01

    According to the European Federation of Organizations for Medical Physics (EFOMP) policy statement No. 13, "The rapid advance in the use of highly sophisticated equipment and procedures in the medical field increasingly depends on information and communication technology. In spite of the fact that the safety and quality of such technology is vigorously tested before it is placed on the market, it often turns out that the safety and quality is not sufficient when used under hospital working conditions. To improve safety and quality for patient and users, additional safeguards and related monitoring, as well as measures to enhance quality, are required. Furthermore a large number of accidents and incidents happen every year in hospitals and as a consequence a number of patients die or are injured. Medical Physicists are well positioned to contribute towards preventing these kinds of events". The newest developments related to this increasingly important medical speciality were presented during the 8th European Conference of Medical Physics 2014 which was held in Athens, 11-13 September 2014 and hosted by the Hellenic Association of Medical Physicists (HAMP) in collaboration with the EFOMP and are summarized in this issue. Copyright © 2015 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.

  2. Pre-flight physical simulation test of HIMES reentry test vehicle

    Science.gov (United States)

    Kawaguchi, Jun'ichiro; Inatani, Yoshifumi; Yonemoto, Koichi; Hosokawa, Shigeru

    ISAS is now developing a small reentry test vehicle, which is 2m long with a 1.5m wing span and weighs about 170 kg, for the purpose of exploring high angle-of-attack aerodynamic attitude control issue in supersonic and hypersonic speed. The flight test, employing 'Rockoon' launch system, is planned as a preliminary design verification for a fully reusable winged rocket named HIMES (Highly Maneuverable Experimental Space) vehicle. This paper describes the results of preflight ground test using a motion table system. This ground system test is called 'physical simulation' aimed at: (1) functional verification of side-jet system, aerodynamic surface actuators, battery and onboard avionics; and (2) guidance and control law evaluation, in total hardware-in-the-loop system. The pressure of side-jet nozzles was measured to provide exact thrust characteristics of reaction control. The dynamics of vehicle motion was calculated in real-time by the ground simulation computer.

  3. Physical Training Outcome Predictions With Biomechanics, Part I: Army Physical Fitness Test Modeling.

    Science.gov (United States)

    Sih, Bryant L; Negus, Charles H

    2016-05-01

    The U.S. Army Basic Combat Training (BCT) is the first step in preparing soldier trainees for the physical demands of the military. Unfortunately, a substantial number of trainees fail BCT due to failure on the final Army Physical Fitness Test (also known as the "end of cycle" APFT). Current epidemiological studies have used statistics to identify several risk factors for poor APFT performance, but these studies have had limited utility for guiding regimen design to maximize APFT outcome. This is because such studies focus on intrinsic risks to APFT failure and do not utilize detailed BCT activity data to build models which offer guidance for optimizing the training regimen to improve graduation rates. In this study, a phenomenological run performance model that accounts for physiological changes in fitness and fatigue due to training was applied to recruits undergoing U.S. Army BCT using high resolution (minute-by-minute) activity data. The phenomenological model was better at predicting both the final as well as intermediate APFTs (R(2) range = 0.55-0.59) compared to linear regression models (LRMs) that used the same intrinsic input variables (R(2) range = 0.36-0.50). Unlike a statistical approach, a phenomenological model accounts for physiological changes and, therefore, has the potential to not only identify trainees at risk of failing BCT on novel training regimens, but offer guidance to regimen planners on how to change the regimen for maximizing physical performance. This paper is Part I of a 2-part series on physical training outcome predictions. Reprint & Copyright © 2016 Association of Military Surgeons of the U.S.

  4. An empirical analysis of the physical aptitude exam as a predictor of performance on the Physical Readiness Test

    OpenAIRE

    Patrick, Robert W.

    2000-01-01

    The Physical Aptitude Exam, administered to candidates in the Naval Academy admissions process to measure physical aptitude, consists of pullups for men or the flexed arm hang for women, a 300-yard shuttle run, a standing longiump, and a kneeling basketball throw. The Physical Readiness Test, administered semi-annually to all naval personnel including midshipmen, consists of modified situps, pushups, and a 1.5-mile run. The purpose of this research is to determine if the Physical Aptitude Exa...

  5. Test on the reactor with the portable digital reactivity meter for physical experiment

    International Nuclear Information System (INIS)

    Huang Liyuan

    2010-01-01

    Test must be performed on the zero power reactor During the development of portable digital reactivity meter for physical experiment, in order to check its measurement function and accuracy. It describes the test facility, test core, test methods, test items and test results. The test results show that the instrument satisfy the requirements of technical specification, and satisfy the reactivity measurement in the physical experiments on reactors. (authors)

  6. Differences in gender performance on competitive physics selection tests

    OpenAIRE

    Kate Wilson; David Low; Matthew Verdon; Alix Verdon

    2016-01-01

    [This paper is part of the Focused Collection on Gender in Physics.] We have investigated gender differences in performance over the past eight years on the Australian Science Olympiad Exam (ASOE) for physics, which is taken by nearly 1000 high school students each year. The ASOE, run by Australian Science Innovations (ASI), is the initial stage of the process of selection of teams to represent Australia at the Asian and International Physics Olympiads. Students taking the exam are generally ...

  7. Apps for Physical Education: Teacher Tested, Kid Approved!

    Science.gov (United States)

    Phillips, Amber; Rodenbeck, Myshel; Clegg, Bethany

    2014-01-01

    Physical education teachers have been encouraged to use technology in their classes to enhance student motivation and learning. The purpose of this article is to share iOS applications (apps) that K-12 physical education teachers and students have found useful.

  8. Development and Testing of the Observational System for Recording Physical Activity in Children: Elementary School

    Science.gov (United States)

    McIver, Kerry L.; Brown, William H.; Pfeiffer, Karin A.; Dowda, Marsha; Pate, Russell R.

    2016-01-01

    Purpose: This study describes the development and pilot testing of the Observational System for Recording Physical Activity-Elementary School (OSRAC-E) Version. Method: This system was developed to observe and document the levels and types of physical activity and physical and social contexts of physical activity in elementary school students…

  9. Prevalence and Correlates of Physical Fitness Testing in U.S. Schools--2000

    Science.gov (United States)

    Morrow, James R., Jr.; Fulton, Janet E.; Brener, Nancy D.; Kohl, Harold W., III

    2008-01-01

    Because of the perceived lack of youth physical fitness and/or concerns for increased obesity, physical education teachers are interested in youth fitness and physical activity levels. Statewide mandates are being developed that require school-based teachers to complete physical fitness testing. Data from the nationally representative School…

  10. Statewide Physical Fitness Testing: A BIG Waist or a BIG Waste?

    Science.gov (United States)

    Morrow, James R., Jr.; Ede, Alison

    2009-01-01

    Statewide physical fitness testing is gaining popularity in the United States because of increased childhood obesity levels, the relations between physical fitness and academic performance, and the hypothesized relations between adult characteristics and childhood physical activity, physical fitness, and health behaviors. Large-scale physical…

  11. Feasibility and reliability of physical fitness tests in older adults with intellectual disability : A pilot study

    NARCIS (Netherlands)

    Hilgenkamp, Thessa I. M.; van Wijck, Ruud; Evenhuis, Heleen M.

    Background Physical fitness is relevant for wellbeing and health, but knowledge on the feasibility and reliability of instruments to measure physical fitness for older adults with intellectual disability is lacking. Methods Feasibility and test-retest reliability of a physical fitness test battery

  12. The analysis of modern approaches to physical fitness testing of military personnel

    Directory of Open Access Journals (Sweden)

    Glazunov Sergej Ivanovich

    2011-11-01

    Full Text Available The aim of research is to determine modern approaches to the physical fitness testing of service personnel. In the army with modern military experience, marked by a tendency to view the content of tests to determine the level of physical fitness of military personnel. Observed differentiation of unified systems tests to determine the general physical and military training military application. Summary of tests determined the nature of loads and motions of the structure inherent in the military during combat operations.

  13. PHYSICS

    CERN Multimedia

    P. Sphicas

    There have been three physics meetings since the last CMS week: “physics days” on March 27-29, the Physics/ Trigger week on April 23-27 and the most recent physics days on May 22-24. The main purpose of the March physics days was to finalize the list of “2007 analyses”, i.e. the few topics that the physics groups will concentrate on for the rest of this calendar year. The idea is to carry out a full physics exercise, with CMSSW, for select physics channels which test key features of the physics objects, or represent potential “day 1” physics topics that need to be addressed in advance. The list of these analyses was indeed completed and presented in the plenary meetings. As always, a significant amount of time was also spent in reviewing the status of the physics objects (reconstruction) as well as their usage in the High-Level Trigger (HLT). The major event of the past three months was the first “Physics/Trigger week” in Apri...

  14. The Physical Activity Scale for Individuals with Physical Disabilities : test-retest reliability and comparison with an accelerometer

    NARCIS (Netherlands)

    van der Ploeg, Hidde P; Streppel, Kitty R M; van der Beek, Allard J; van der Woude, Luc H V; Vollenbroek-Hutten, Miriam; van Mechelen, Willem; van der Woude, Lucas

    BACKGROUND: The objective was to determine the test-retest reliability and criterion validity of the Physical Activity Scale for Individuals with Physical Disabilities (PASIPD). METHODS: Forty-five non-wheelchair dependent subjects were recruited from three Dutch rehabilitation centers. Subjects'

  15. An Empirical Analysis of the Physical Aptitude Exam as a Predictor of Performance on the Physical Readiness Test

    National Research Council Canada - National Science Library

    Patrick, Robert

    2000-01-01

    ... shuttle run, a standing longiump, and a kneeling basketball throw. The Physical Readiness Test, administered semi-annually to all naval personnel including midshipmen, consists of modified situps, pushups, and a 1.5-mile run...

  16. Reliability of six physical performance tests in older people with dementia

    NARCIS (Netherlands)

    Blankevoort, C.G.; Heuvelen, M.J.; Scherder, E.J.A.

    2012-01-01

    Background. Physical performance tests are important for assessing the effect of physical activity interventions in older people with dementia, but their psychometric properties have not been systematically established within this specific population. Objective. The purpose of this study was to

  17. Reliability of Six Physical Performance Tests in Older People With Dementia

    NARCIS (Netherlands)

    Blankevoort, Christiaan G.; van Heuvelen, Marieke J. G.; Scherder, Erik J. A.

    Background. Physical performance tests are important for assessing the effect of physical activity interventions in older people with dementia, but their psychometric properties have not been systematically established within this specific population. Objective. The purpose of this study was to

  18. A simple field test for the assessment of physical fitness.

    Science.gov (United States)

    1963-04-01

    An essential factor in air safety is the physical and mental fitness of all personnel directly involved in operations of general, commercial, and military aviation. Standardization and classification of fitness, however, have not been established to ...

  19. U.S. Army Physical Demands Study: Development of the Occupational Physical Assessment Test for Combat Arms soldiers.

    Science.gov (United States)

    Foulis, Stephen A; Sharp, Marilyn A; Redmond, Jan E; Frykman, Peter N; Warr, Bradley J; Gebhardt, Deborah L; Baker, Todd A; Canino, Maria C; Zambraski, Edward J

    2017-11-01

    The United States Army sought to create a legally defensible, scientifically validated physical pre-employment screening test. The purpose of this study was to identify a single combination of predictor tests that would predict physical performance on all of the criterion measure task simulations relevant to the Combat Arms military occupational specialties. Concurrent validation. Data from 838 (608 males, 230 females) soldiers who completed both the criterion measure task simulations of a military occupational specialty and up to 14 predictor tests were used in the development of the test batteries. Stepwise regressions were used to identify test batteries that significantly predicted performance on the criterion measure task simulations of the military occupational specialties. Three test batteries were developed based on different subsets of the predictor tests: Test Battery 1 consisted of the medicine ball put, squat lift, beep test, standing long jump, and arm ergometer (adjusted R 2 =0.80-0.85, pTest Battery 2 consisted of the medicine ball put, squat lift, beep test, and standing long jump (adjusted R 2 =0.79-0.80, pTest Battery 3 consisted of the standing long jump, 1-minute push-ups, 1-minute sit-ups, 300m sprint, and Illinois agility test (adjusted R 2 =0.55-0.71, pTest Battery 2 was selected as the Army's Occupational Physical Assessment Test. It was highly predictive of performance of the Combat Arms military occupational specialties, required no complex equipment, and covered a range of physical fitness domains. Published by Elsevier Ltd.

  20. An Innovative Physical Model for Testing Bucket Foundations

    DEFF Research Database (Denmark)

    Foglia, Aligi; Ibsen, Lars Bo; Andersen, Lars Vabbersgaard

    2012-01-01

    Pa), 20 (kPa), and 30 (kPa) respectively. The comparison between the tests conducted at stress level of 0 (kPa), and the tests with stress level increased, shows remarkable differences. The relationship between scaled overturning moment and rotation is well represented by a power law. The exponent...... of the power law is consistent among all tests carried out with stress level increased. Besides, attention is given to the instantaneous centre of rotation distribution. To validate the mode, the tests are compared with a large scale test by means of a scaling moment. The validation of the model is only...

  1. Virtual Physical Therapy Clinician: Development, Validation and Testing

    Science.gov (United States)

    Huhn, Karen

    2011-01-01

    Introduction: Clinical reasoning skills develop through repeated practice in realistic patient scenarios. Time constraints, declining availability of clinical education sites and patient safety are some of the factors that limit physical therapy educators' ability to expose students to realistic patient scenarios. Computerized simulations may be…

  2. An entrepreneurial physics method and its experimental test

    Science.gov (United States)

    Brown, Robert

    2012-02-01

    As faculty in a master's program for entrepreneurial physics and in an applied physics PhD program, I have advised upwards of 40 master and doctoral theses in industrial physics. I have been closely involved with four robust start-up manufacturing companies focused on physics high-technology and I have spent 30 years collaborating with industrial physicists on research and development. Thus I am in a position to reflect on many articles and advice columns centered on entrepreneurship. What about the goals, strategies, resources, skills, and the 10,000 hours needed to be an entrepreneur? What about business plans, partners, financing, patents, networking, salesmanship and regulatory affairs? What about learning new technology, how to solve problems and, in fact, learning innovation itself? At this point, I have my own method to propose to physicists in academia for incorporating entrepreneurship into their research lives. With this method, we do not start with a major invention or discovery, or even with a search for one. The method is based on the training we have, and the teaching we do (even quantum electrodynamics!), as physicists. It is based on the networking we build by 1) providing courses of continuing education for people working in industry and 2) through our undergraduate as well as graduate students who have gone on to work in industry. In fact, if we were to be limited to two words to describe the method, they are ``former students.'' Data from local and international medical imaging manufacturing industry are presented.

  3. Physical and chemical test results of electrostatic safe flooring materials

    Science.gov (United States)

    Gompf, R. H.

    1988-01-01

    This test program was initiated because a need existed at the Kennedy Space Center (KSC) to have this information readily available to the engineer who must make the choice of which electrostatic safe floor to use in a specific application. The information, however, should be of value throughout both the government and private industry in the selection of a floor covering material. Included are the test results of 18 floor covering materials which by test evaluation at KSC are considered electrostatically safe. Tests were done and/or the data compiled in the following areas: electrostatics, flammability, hypergolic compatibility, outgassing, floor type, material thickness, and available colors. Each section contains the test method used to gather the data and the test results.

  4. Physical Test Validation for Job Selection. Chapter 5

    Science.gov (United States)

    2000-09-21

    ACSM . (1991). Guidelines for exercise testing and prescription. (3’ ed.). (Vol. 4). Philadelphia, PA: Lea and Febiger. 4. Altman, D. G., Bland, J. M...Commission (EEOC) guidelines (EEOC, 1978) as they relate to test validation. The sanctioned validation methods are content validity, criterion-related...1994). The Uniform Guidelines recognize three types of validity with respect to selection test development: content validity, criterion-related

  5. Simple test for physical stability of cryogenic tank insulation

    Science.gov (United States)

    Rossello, D.

    1968-01-01

    Qualitative test determines the ability of insulation liners used on liquid hydrogen tanks to withstand stresses produced by the thermal shocks imparted to the insulation during tank filling and drainage. Test specimens are bonded to metal plates with a low thermal expansion coefficient and are immersed in liquid hydrogen.

  6. Smoking versus Nonsmoking and the Army Physical Fitness Test

    Science.gov (United States)

    1990-06-07

    PF p 0 POP I r rr r r 0 ............ . . . . . . . . . . . 910 0 00 rrrow* vmr ;rrwooFrrwr*worrD: 00 4.4.0 "llri 0 C, 00 !2sq-t"",R ’Rot Big 0 pop loop...Shortness of Breath and Physical Fitness.’ Medical Science and SPorts 4 (Fall 1972): 138. Department of Defense, Department of Defense Report on Smoking

  7. Enhanced verification test suite for physics simulation codes

    Energy Technology Data Exchange (ETDEWEB)

    Kamm, James R.; Brock, Jerry S.; Brandon, Scott T.; Cotrell, David L.; Johnson, Bryan; Knupp, Patrick; Rider, William J.; Trucano, Timothy G.; Weirs, V. Gregory

    2008-09-01

    This document discusses problems with which to augment, in quantity and in quality, the existing tri-laboratory suite of verification problems used by Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratories (SNL). The purpose of verification analysis is demonstrate whether the numerical results of the discretization algorithms in physics and engineering simulation codes provide correct solutions of the corresponding continuum equations.

  8. Demonstration of load rating capabilities through physical load testing : Sioux County bridge case study.

    Science.gov (United States)

    2013-08-01

    The objective of this work, Pilot Project - Demonstration of Capabilities and Benefits of Bridge Load Rating through Physical Testing, was to demonstrate the capabilities for load testing and rating bridges in Iowa, study the economic benefit of perf...

  9. Demonstration of load rating capabilities through physical load testing : Johnson County bridge case study.

    Science.gov (United States)

    2013-08-01

    The objective of this work, Pilot Project - Demonstration of Capabilities and Benefits of Bridge Load Rating through Physical Testing, was to demonstrate the capabilities for load testing and rating bridges in Iowa, study the economic benefit of perf...

  10. Demonstration of load rating capabilities through physical load testing : Ida County bridge case study.

    Science.gov (United States)

    2013-08-01

    The objective of this work, Pilot Project - Demonstration of Capabilities and Benefits of Bridge Load Rating through Physical Testing, was to demonstrate the capabilities for load testing and rating bridges in Iowa, study the economic benefit of perf...

  11. Comments on Thermal Physical Properties Testing Methods of Phase Change Materials

    Directory of Open Access Journals (Sweden)

    Jingchao Xie

    2013-01-01

    Full Text Available There is no standard testing method of the thermal physical properties of phase change materials (PCM. This paper has shown advancements in this field. Developments and achievements in thermal physical properties testing methods of PCM were commented, including differential scanning calorimetry, T-history measurement, the water bath method, and differential thermal analysis. Testing principles, advantages and disadvantages, and important points for attention of each method were discussed. A foundation for standardized testing methods for PCM was made.

  12. Feasibility test on green energy harvesting from physical exercise devices

    Science.gov (United States)

    Mustafi, Nirendra N.; Mourshed, M.; Masud, M. H.; Hossain, M. S.; Kamal, M. R.

    2017-06-01

    The demand of power is increasing day by day due to the increase of world population as well as the industrialization and modernization. Depletion of the world's fossil fuel reserves and the adverse effects of their uses on the environment insist the researchers to find out some means of efficient and cost effective alternative energy sources from small to large scales. In a gymnasium the human metabolism power is used to drive the physical exercise devices. However there are a number of exercise device which can have the potential to generate electricity during physical exercise. By converting the available mechanical energy from these exercise devices into kinetic energy, electric power can be produced. In this work, energy was harvested from the most commonly used physical exercise devices used in the gymnasium - paddling and chin up. The paddle pulley and the chin up pulley were connected to the couple pulley which in turn coupled to an alternator by a V-belt to produce electrical energy and a rechargeable battery was used to store electrical energy. The power generation from the device depends upon the speed at which the alternator runs and the age limit. The electrical energy output was observed 83.6 watt at 1300 rpm and 62.5 watt at1150 rpm alternator speed for the paddling and chin up respectively recorded for an average adult. The device was designed for a constant 49N load on the alternator for both paddling and chin up operation. By running each of these devices for about 12 hours in a day, any gymnasium can avoid burning of almost 23.67 kg and 31.6 kg of diesel fuel per year for chin up and paddling respectively. Also it can cut off the CO2 emission to the environment which reveals itself a standalone green micro gym.

  13. Test-retest reliability of Eurofit Physical Fitness items for children with visual impairments

    NARCIS (Netherlands)

    Houwen, Suzanne; Visscher, Chris; Hartman, Esther; Lemmink, Koen A. P. M.

    The purpose of this study was to examine the test-retest reliability of physical fitness items from the European Test of Physical Fitness (Eurofit) for children with visual impairments. A sample of 21 children, ages 6-12 years, that were recruited from a special school for children with visual

  14. New possibilities for testing local realism in high energy physics

    International Nuclear Information System (INIS)

    Li Junli; Qiao Congfeng

    2009-01-01

    The three photons from the dominant ortho-positronium decay and two vector mesons from the η c exclusive decays are found to be in tripartite and high-dimensional entangled states, respectively. These two classes of entangled states possess the Hardy type nonlocality and allow a priori for quantum mechanics vs local realism test via Bell inequalities. The experimental realizations are shown to be feasible, and a concrete scheme to fulfill the test in experiment via two-vector-meson entangled state is proposed.

  15. High School Physical Education Teachers' Attitudes and Use of Fitness Tests

    Science.gov (United States)

    Mercier, Kevin; Phillips, Sharon; Silverman, Stephen

    2016-01-01

    Recommendations for using and implementing fitness tests have been extensively researched and teachers' attitudes toward fitness tests are beginning to be studied. Less understood is how high school teachers use fitness tests and the role their attitudes toward fitness tests affect students' attitudes toward physical activity. The purpose of this…

  16. Warped extra dimensions. Flavor, precision tests and Higgs physics

    Energy Technology Data Exchange (ETDEWEB)

    Goertz, Florian

    2011-07-01

    In this thesis, the phenomenology of the Randall-Sundrum setup is investigated. In this context models with and without an enlarged SU(2){sub L} x SU(2){sub R} x U(1){sub X} x P{sub LR} gauge symmetry, which removes corrections to the T parameter and to the Zb{sub L}b{sub L} coupling, are compared with each other. The Kaluza-Klein decomposition is formulated within the mass basis, which allows for a clear understanding of various model-specific features. A complete discussion of tree-level flavor-changing effects is presented. Exact expressions for five dimensional propagators are derived, including Yukawa interactions that mediate flavor-off-diagonal transitions. The symmetry that reduces the corrections to the left-handed Zbb coupling is analyzed in detail. In the literature, Randall-Sundrum models have been used to address the measured anomaly in the tt forward-backward asymmetry. However, it is shown that this is not possible within a natural approach to flavor. The rare decays t{yields}cZ and t{yields}ch are investigated, where in particular the latter could be observed at the LHC. A calculation of {gamma}{sup B}{sub s12} in the presence of new physics is presented. It is shown that the Randall-Sundrum setup allows for an improved agreement with measurements of A{sup s}{sub SL}, S{sub {psi}}{sub {phi}}, and {delta}{gamma}{sub s}. For the first time, a complete one-loop calculation of all relevant Higgs-boson production and decay channels in the custodial Randall-Sundrum setup is performed, revealing a sensitivity to large new-physics scales at the LHC.

  17. Warped extra dimensions. Flavor, precision tests and Higgs physics

    International Nuclear Information System (INIS)

    Goertz, Florian

    2011-01-01

    In this thesis, the phenomenology of the Randall-Sundrum setup is investigated. In this context models with and without an enlarged SU(2) L x SU(2) R x U(1) X x P LR gauge symmetry, which removes corrections to the T parameter and to the Zb L b L coupling, are compared with each other. The Kaluza-Klein decomposition is formulated within the mass basis, which allows for a clear understanding of various model-specific features. A complete discussion of tree-level flavor-changing effects is presented. Exact expressions for five dimensional propagators are derived, including Yukawa interactions that mediate flavor-off-diagonal transitions. The symmetry that reduces the corrections to the left-handed Zbb coupling is analyzed in detail. In the literature, Randall-Sundrum models have been used to address the measured anomaly in the tt forward-backward asymmetry. However, it is shown that this is not possible within a natural approach to flavor. The rare decays t→cZ and t→ch are investigated, where in particular the latter could be observed at the LHC. A calculation of Γ B s 12 in the presence of new physics is presented. It is shown that the Randall-Sundrum setup allows for an improved agreement with measurements of A s SL , S ψφ , and ΔΓ s . For the first time, a complete one-loop calculation of all relevant Higgs-boson production and decay channels in the custodial Randall-Sundrum setup is performed, revealing a sensitivity to large new-physics scales at the LHC.

  18. A test to evaluate the physical impact on technical performance in soccer

    DEFF Research Database (Denmark)

    Rostgaard, Thomas; Iaia, F. Marcello; Simonsen, Dennis S.

    2008-01-01

    The aim of the study was to develop and examine a test for evaluation of the physical and technical capacity of soccer players. Fourteen youth elite (YE) and seven sub-elite (SE) players performed a physical and technical test (PT-test) consisting of 10 long kicks interspersed with intense...... intermittent exercise. In addition, a control test (CON-test) without intense exercise was performed. In both cases, the test result was evaluated by the precision of the 10 kicks. The players also performed the Yo-Yo intermittent recovery test level 2 (Yo-Yo IR2). For the SE-players, blood samples were...... obtained and heart rate was measured before, during, and after the PT-test. A muscle biopsy was collected before and after the PT-test. Coefficient of variation for the PT- and CON-test was 11.7% and 16.0%, respectively. The YE-players performed better (P test (16...

  19. A Study of the Physical Fitness Test in Relation to Demographics, Academic Achievement, and Students' Physical Fitness Perceptions

    Science.gov (United States)

    Mobilia-Jones, Karen

    2010-01-01

    This study examines the overall results of the Physical Fitness Test (PFT) and the six fitness areas of the PFT, academic achievement, demographics and self perceptions and the potential impact on students' performance on the PFT. While academic expectations are increasing, the adolescent obesity rate is also increasing, producing a decline in the…

  20. Exercise Testing Reveals Everyday Physical Challenges of Bariatric Surgery Candidates.

    Science.gov (United States)

    Creel, David B; Schuh, Leslie M; Newton, Robert L; Stote, Joseph J; Cacucci, Brenda M

    2017-12-01

    Few studies have quantified cardiorespiratory fitness among individuals seeking bariatric surgery. Treadmill testing allows researchers to determine exercise capacity through metabolic equivalents. These findings can assist clinicians in understanding patients' capabilities to carry out various activities of daily living. The purpose of this study was to determine exercise tolerance and the variables associated with fitness, among individuals seeking bariatric surgery. Bariatric surgery candidates completed submaximal treadmill testing and provided ratings of perceived exertion. Each participant also completed questionnaires related to history of exercise, mood, and perceived barriers/benefits of exercise. Over half of participants reported that exercise was "hard to very hard" before reaching 70% of heart rate reserve, and one-third of participants reported that exercise was "moderately hard" at less than 3 metabolic equivalents (light activity). Body mass index and age accounted for the majority of the variance in exercise tolerance, but athletic history, employment status, and perceived health benefits also contributed. Perceived benefit scores were higher than barrier scores. Categories commonly used to describe moderate-intensity exercise (3-6 metabolic equivalents) do not coincide with perceptions of intensity among many bariatric surgery candidates, especially those with a body mass index of 50 or more.

  1. Validity of the German Version of the Continuous-Scale Physical Functional Performance 10 Test

    Directory of Open Access Journals (Sweden)

    Irene Härdi

    2017-01-01

    Full Text Available Background. The Continuous-Scale Physical Functional Performance 10 Test (CS-PFP 10 quantitatively assesses physical functional performance in older adults who have a broad range of physical functional ability. This study assessed the validity and reliability of the CS-PFP 10 German version. Methods. Forward-translations and backtranslations as well as cultural adaptions of the test were conducted. Participants were German-speaking Swiss community-dwelling adults aged 64 and older. Concurrent validity was assessed using Pearson correlation coefficients between CS-PFP 10 and gait velocity, Timed Up and Go Test, hand grip strength, SF-36 physical function domain, and Freiburger Physical Activity Questionnaire. Internal consistency was calculated by Cronbach’s alpha. Results. Backtranslation and cultural adaptions were accepted by the CS-PFP 10 developer. CS-PFP 10 total score and subscores (upper body strength, upper body flexibility, lower body strength, balance and coordination, and endurance correlated significantly with all measures of physical function tested. Internal consistency was high (Cronbach’s alpha 0.95–0.98. Conclusion. The CS-PFP 10 German version is valid and reliable for measuring physical functional performance in German-speaking Swiss community-dwelling older adults. Quantifying physical function is essential for clinical practice and research and provides meaningful insight into physical functional performance of older adults. This trial is registered with ClinicalTrials.gov NCT01539200.

  2. Physical Fitness Characteristics of High vs. Low Performers on an Occupationally Specific Physical Agility Test for Patrol Officers.

    Science.gov (United States)

    Dawes, J Jay; Lindsay, Keston; Bero, Jennifer; Elder, Craig; Kornhauser, Charlie; Holmes, Ryan

    2017-10-01

    Law enforcement agencies frequently use physical ability tests (PATs) as a method of evaluating occupational performance. These tests are designed to replicate essential occupational tasks frequently performed by officers in the field. The purpose of this study was to determine whether significant relationships exist between the selected physical fitness tests and PAT performance and to determine which of these tests best differentiates between high and low PAT performers. Full-time highway patrol officers (n = 495) submitted self-reported anthropometric data (mean age = 39.6 + 7.7 years) along with fitness assessments taken from their organization's yearly fitness tests. All subjects completed a series of field-based fitness tests, as well as an occupationally specific PAT. Results of the study indicated that the selected tests accounted for almost 69% of the total variance on PAT performance. Overall, the 20-m meter multistage fitness test, 1-minute sit-up performance, and vertical jump height best predicted PAT performance. Furthermore, it was revealed that high performers were significantly more fit in all measures of dynamic fitness when compared with lower performers. No significant differences were discovered in static strength between groups. Strength and conditioning specialists should focus on developing aerobic capacity, trunk muscular endurance, and whole-body anaerobic power to improve PAT and occupational performance.

  3. Study on Assessment of Physical Endurance in Older Persons : Availability of 400-m Walking Performance Test

    OpenAIRE

    芳賀, 脩光; 衣笠, 隆; 仲真, 迅; 十枝内, 厚次; 宮崎, 裕美; 岩下, 太郎; 伊藤, 稔; 渡部, 和彦; 佐藤, 祐造; 大野, 秀樹; Shukoh, HAGA; Takashi, KINUGASA; Hayashi, NAKAMA; Koji, TOSHINAI; Hiromi, MIYAZAKI

    1999-01-01

    Few studies have evaluated physical endurance as measured by a walking performance test. We investigated a 400-m walking test which indirectly assesses physical endurance in older people. In Study I, fifty-three healthy subjects aged 67.8±0.7 years performed and incremental treadmill walking test, and a 400-m walking test. The RPE 11(fairly light)level by the Borg scale was regarded as the exercise intensity during the 400-m walking test. Mean value of pred.VO_2max and VO_2@VT were 25.8ml/kg/...

  4. Physical Education Teacher Attitudes toward Fitness Tests Scale: Cross-Revalidation and Modification

    Science.gov (United States)

    Keating, Xiaofen D.; Guan, Jianmin; Ferguson, Robert H.; Chen, Li; Bridges, Dwan M.

    2008-01-01

    This study aimed to provide further evidence of validity and reliability for the Physical Education Teacher Attitudes toward Fitness Tests Scale (PETAFTS), which consisted of affective and cognitive domains. There were two subdomains in the affective domain (i.e., enjoyment of implementing fitness tests and enjoyment of using test results) and one…

  5. Association between physiological falls risk and physical performance tests among community-dwelling older adults.

    Science.gov (United States)

    Singh, Devinder K A; Pillai, Sharmila G K; Tan, Sin Thien; Tai, Chu Chiau; Shahar, Suzana

    2015-01-01

    Physical performance and balance declines with aging and may lead to increased risk of falls. Physical performance tests may be useful for initial fall-risk screening test among community-dwelling older adults. Physiological profile assessment (PPA), a composite falls risk assessment tool is reported to have 75% accuracy to screen for physiological falls risk. PPA correlates with Timed Up and Go (TUG) test. However, the association between many other commonly used physical performance tests and PPA is not known. The aim of the present study was to examine the association between physiological falls risk measured using PPA and a battery of physical performance tests. One hundred and forty older adults from a senior citizens club in Kuala Lumpur, Malaysia (94 females, 46 males), aged 60 years and above (65.77±4.61), participated in this cross-sectional study. Participants were screened for falls risk using PPA. A battery of physical performance tests that include ten-step test (TST), short physical performance battery (SPPB), functional reach test (FRT), static balance test (SBT), TUG, dominant hand-grip strength (DHGS), and gait speed test (GST) were also performed. Spearman's rank correlation and binomial logistic regression were performed to examine the significantly associated independent variables (physical performance tests) with falls risk (dependent variable). Approximately 13% older adults were at high risk of falls categorized using PPA. Significant differences (Page, TST, SPPB, FRT, SBT, TUG between high and low falls risk group. A significant (Pphysiological falls risk (Pfalls screening to categorize high and low physiological falls risk among community-dwelling older adults. A more comprehensive assessment of falls risk can be performed thereafter for more specific intervention of underlying impairments.

  6. Identify the Tests to Measure Physical Characteristics and Basic Skills for the Football Players in Iraq

    Directory of Open Access Journals (Sweden)

    Mothna Mohammed

    2016-07-01

    Full Text Available Background: Basic skills specification and physical characteristics are the most significant factors for Football players. Objective: This research aims to determine the most relevant tests to examine the basic skills and physical characteristics for the football coaches in Karbala. Methods: The participants of this study includes 92 Football player (body weight 68±16 kg (mean±SD, height 172.5±17.5 cm, age 21±3 year who were chosen from the 4 clubs in Karbala, Iraq. Methods: To choose the appropriate tests for basic skills and physical characteristics the opinion of the experts was used followed by 2 questionnaires, scored from 1 to 5. The tests were recommended for this study and the questionnaire consisted of seven items.  The researcher adapted the questionnaires from previous studies. Results: The findings of questionnaires revealed that vertical jump and dribbling 25 m, sit down and stand up, Nelson reaction, 30 m sprint, passing with wall and Shuttle test are chosen to test the Physical characteristics in football, whereas, accuracy test for shooting, heading the ball, competitor evasion, receiving ball, zigzag dribbling and passing accuracy are chosen to test basic skills in football. Conclusion: The tests which were chosen in this study can be adopted by coaches as a practical way in Karbala and other regions in Iraq and also in other countries. The experts can use the findings of these tests and compare professional athletes and other football players. Keywords: physical characteristics; anthropometric parameters; Basic skills; football

  7. The Swiss Army physical fitness test battery predicts risk of overuse injuries among recruits.

    Science.gov (United States)

    Wyss, T; Von Vigier, R O; Frey, F; Mäder, U

    2012-10-01

    The aim of this study was to quantify the discriminative power of physical performance tests to recognize conscripts with enhanced risk of acute and overuse injuries in specific, physically demanding occupational specialties of the Swiss Army. The five performance tests investigated represent the Swiss Army Physical Fitness Test Battery. Physical fitness performances were assessed during recruitment procedures prior to military service, and injury occurrences were assessed during 18 weeks of boot camp. Complete fitness and injury data of 459 volunteers from four military occupational specialties were collected. Discriminative power of volunteers' aerobic endurance capacity, trunk muscle fitness, muscle power of upper and lower extremities, and balance for predicting risk of acute injuries and for predicting risk of overuse injuries was calculated using receiver operating characteristic curve analysis. The presented fitness tests had no discriminative power for predicting the risk of acute injuries. However, the trunk muscle fitness test was discriminative in predicting overuse injuries in all four military occupational specialties, progressive endurance run in three, balance test in two, and standing long jump in one. Only the seated shot put had no significant power for predicting overuse injuries in all four study groups. However, for different occupational specialties, different fitness parameters were discriminative to predict overuse injuries. It is possible to conclude that the fitness tests used allow detection of conscripts with enhanced overuse injury risk in physically demanding occupational specialties and therefore provide an indicator to select suitable personnel for physically demanding jobs in a military organization.

  8. A physical function test for use in the intensive care unit: validity, responsiveness, and predictive utility of the physical function ICU test (scored).

    Science.gov (United States)

    Denehy, Linda; de Morton, Natalie A; Skinner, Elizabeth H; Edbrooke, Lara; Haines, Kimberley; Warrillow, Stephen; Berney, Sue

    2013-12-01

    Several tests have recently been developed to measure changes in patient strength and functional outcomes in the intensive care unit (ICU). The original Physical Function ICU Test (PFIT) demonstrates reliability and sensitivity. The aims of this study were to further develop the original PFIT, to derive an interval score (the PFIT-s), and to test the clinimetric properties of the PFIT-s. A nested cohort study was conducted. One hundred forty-four and 116 participants performed the PFIT at ICU admission and discharge, respectively. Original test components were modified using principal component analysis. Rasch analysis examined the unidimensionality of the PFIT, and an interval score was derived. Correlations tested validity, and multiple regression analyses investigated predictive ability. Responsiveness was assessed using the effect size index (ESI), and the minimal clinically important difference (MCID) was calculated. The shoulder lift component was removed. Unidimensionality of combined admission and discharge PFIT-s scores was confirmed. The PFIT-s displayed moderate convergent validity with the Timed "Up & Go" Test (r=-.60), the Six-Minute Walk Test (r=.41), and the Medical Research Council (MRC) sum score (rho=.49). The ESI of the PFIT-s was 0.82, and the MCID was 1.5 points (interval scale range=0-10). A higher admission PFIT-s score was predictive of: an MRC score of ≥48, increased likelihood of discharge home, reduced likelihood of discharge to inpatient rehabilitation, and reduced acute care hospital length of stay. Scoring of sit-to-stand assistance required is subjective, and cadence cutpoints used may not be generalizable. The PFIT-s is a safe and inexpensive test of physical function with high clinical utility. It is valid, responsive to change, and predictive of key outcomes. It is recommended that the PFIT-s be adopted to test physical function in the ICU.

  9. Physicists purchase materials testing machine in support of pioneering particle physics experiments

    CERN Multimedia

    Sharpe, Suzanne

    2007-01-01

    "The particle physics group at Liverpool University has purchased an LRXPlus singlecolumn materials testing machine from Lloyd Instruments, which will be used to help characterise the carbon-fibre support frames for detectors used for state-of-the-art particle physics experiments." (1 page)

  10. Value of physical tests in diagnosing cervical radiculopathy : a systematic review

    NARCIS (Netherlands)

    Thoomes, Erik J; van Geest, Sarita; van der Windt, Danielle A; Falla, Deborah; Verhagen, Arianne P; Koes, Bart W; Thoomes-de Graaf, Marloes; Kuijper, Barbara; Scholten-Peeters, Wendy Gm; Vleggeert-Lankamp, Carmen L

    Background context In clinical practice, the diagnosis of cervical radiculopathy is based on information from the patient history, physical examination and diagnostic imaging. Various physical tests may be performed, but their diagnostic accuracy is unknown. Purpose To summarize and update the

  11. Pilot-Testing CATCH Early Childhood: A Preschool-Based Healthy Nutrition and Physical Activity Program

    Science.gov (United States)

    Sharma, Shreela; Chuang, Ru-Jye; Hedberg, Ann Marie

    2011-01-01

    Background: The literature on theoretically-based programs targeting healthy nutrition and physical activity in preschools is scarce. Purpose: To pilot test CATCH Early Childhood (CEC), a preschool-based nutrition and physical activity program among children ages three to five in Head Start. Methods: The study was conducted in two Head Start…

  12. Precision tests of the standard model, the Higgs, and new physics

    Indian Academy of Sciences (India)

    journal of. February 2004 physics pp. 149-161. Precision tests of the standard model, the Higgs, and new physics. GUIDO ALTARELLI. Theory Division, CERN ... the Pascos-Wolfenstein ratio of neutral to charged current deep inelastic cross- .... with the direct limit on СА can be improved with respect to the sM, even in the.

  13. [Precautions of physical performance requirements and test methods during product standard drafting process of medical devices].

    Science.gov (United States)

    Song, Jin-Zi; Wan, Min; Xu, Hui; Yao, Xiu-Jun; Zhang, Bo; Wang, Jin-Hong

    2009-09-01

    The major idea of this article is to discuss standardization and normalization for the product standard of medical devices. Analyze the problem related to the physical performance requirements and test methods during product standard drafting process and make corresponding suggestions.

  14. Benchmark physics tests in the metallic-fuelled assembly ZPPR-15

    International Nuclear Information System (INIS)

    McFarlane, H.F.; Brumbach, S.B.; Carpenter, S.G.; Collins, P.J.

    1987-01-01

    In the last two years a shift in emphasis to inherent safety and economic competitiveness has led to a resurgence in US interest in metallic-alloy fuels for LMRs. Argonne National Laboratory initiated an extensive testing program for metallic-fuelled LMR technology that has included benchmark physics as one component. The tests done in the ZPPR-15 Program produced the first physics results in over 20 years for a metal-composition LMR core

  15. Physical examination tests for the diagnosis of femoroacetabular impingement. A systematic review.

    Science.gov (United States)

    Pacheco-Carrillo, Aitana; Medina-Porqueres, Ivan

    2016-09-01

    Numerous clinical tests have been proposed to diagnose FAI, but little is known about their diagnostic accuracy. To summarize and evaluate research on the accuracy of physical examination tests for diagnosis of FAI. A search of the PubMed, SPORTDiscus and CINAHL databases was performed. Studies were considered eligible if they compared the results of physical examination tests to those of a reference standard. Methodological quality and internal validity assessment was performed by two independent reviewers using the Quality Assessment of Diagnostic Accuracy Studies (QUADAS) tool. The systematic search strategy revealed 298 potential articles, five of which articles met the inclusion criteria. After assessment using the QUADAS score, four of the five articles were of high quality. Clinical tests included were Impingement sign, IROP test (Internal Rotation Over Pressure), FABER test (Flexion-Abduction-External Rotation), Stinchfield/RSRL (Resisted Straight Leg Raise) test, Scour test, Maximal squat test, and the Anterior Impingement test. IROP test, impingement sign, and FABER test showed the most sensitive values to identify FAI. The diagnostic accuracy of physical examination tests to assess FAI is limited due to its heterogenecity. There is a strong need for sound research of high methodological quality in this area. Copyright © 2016 Elsevier Ltd. All rights reserved.

  16. Summary of Technical Meeting To Compare US/French Approaches for Physical Protection Test Beds

    Energy Technology Data Exchange (ETDEWEB)

    Mack, Thomas Kimball [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Martinez, Ruben [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Thomas, Gerald [National Nuclear Security Administration (NNSA), Washington, DC (United States); Palut, Jean-Michel [French Alternative and Atomic Energy Commission (CEA), Fontenay Aux Roses (France)

    2016-01-01

    In September 2015, representatives of the US Department of Energy/National Nuclear Security Administration, including test bed professionals from Sandia National Laboratories, and representatives of the French Alternative Energies and Atomic Energy Commission participated in a one-week workshop to share best practices in design, organization, operations, utilization, improvement, and performance testing of physical protection test beds. The intended workshop outcomes were to (1) share methods of improving respective test bed methodologies and programs and (2) prepare recommendations for standards regarding creating and operating testing facilities for nations new to nuclear operations. At the workshop, the French and American subject matter experts compared best practices as developed at their respective test bed sites; discussed access delay test bed considerations; and presented the limitations/ constraints of physical protection test beds.

  17. Physical examination tests for screening and diagnosis of cervicogenic headache: A systematic review.

    Science.gov (United States)

    Rubio-Ochoa, J; Benítez-Martínez, J; Lluch, E; Santacruz-Zaragozá, S; Gómez-Contreras, P; Cook, C E

    2016-02-01

    It has been suggested that differential diagnosis of headaches should consist of a robust subjective examination and a detailed physical examination of the cervical spine. Cervicogenic headache (CGH) is a form of headache that involves referred pain from the neck. To our knowledge, no studies have summarized the reliability and diagnostic accuracy of physical examination tests for CGH. The aim of this study was to summarize the reliability and diagnostic accuracy of physical examination tests used to diagnose CGH. A systematic review following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines was performed in four electronic databases (MEDLINE, Web of Science, Embase and Scopus). Full text reports concerning physical tests for the diagnosis of CGH which reported the clinometric properties for assessment of CGH, were included and screened for methodological quality. Quality Appraisal for Reliability Studies (QAREL) and Quality Assessment of Studies of Diagnostic Accuracy (QUADAS-2) scores were completed to assess article quality. Eight articles were retrieved for quality assessment and data extraction. Studies investigating diagnostic reliability of physical examination tests for CGH scored poorer on methodological quality (higher risk of bias) than those of diagnostic accuracy. There is sufficient evidence showing high levels of reliability and diagnostic accuracy of the selected physical examination tests for the diagnosis of CGH. The cervical flexion-rotation test (CFRT) exhibited both the highest reliability and the strongest diagnostic accuracy for the diagnosis of CGH. Copyright © 2015 Elsevier Ltd. All rights reserved.

  18. Relationship of physical examination test of shoulder instability to arthroscopic findings in dogs.

    Science.gov (United States)

    Devitt, Chad M; Neely, Marlon R; Vanvechten, Brian J

    2007-10-01

    To determine the diagnostic validity of commonly used physical examination maneuvers for shoulder instability. Retrospective study. Dogs (n=24) referred for shoulder arthroscopy. Results of physical maneuvers and arthroscopic findings were recorded and sensitivity, specificity, positive likelihood ratios (LR+), and negative likelihood ratios (LR-) were calculated for each of 4 physical examination test findings for arthroscopic changes in the medial, lateral, cranial, or caudal compartments of the shoulder joint viewed in dorsal recumbency by lateral and craniomedial portals. Distribution of compartment changes was: medial (17 dogs), caudal (15), cranial (12), and lateral (5). The biceps test had a moderate effect (LR+=9) on post-test probability of cranial compartment changes and a small effect on post-test probability of lateral and caudal compartment changes (LR+=3 and 2.4, respectively). Hyperabduction had a minimal effect and mediolateral instability test had a small effect (LR+=1.64 and 2.68, respectively) on post-test probability of medial compartment changes. Craniocaudal instability test had little to no effect on post-test probability of changes in any compartment. Physical examination tests evaluated were limited in their ability to predict the type of arthroscopic pathology in this study population. Clinicians should understand that a diagnostic test performs inconsistently based on prevalence of a condition in a given patient population. The use of likelihood ratios can assist clinicians in determining the probability of intraarticular changes from a group with a differing prevalence than the patient population presented.

  19. Is the Physical Being Taken out of Physical Education? On the Possible Effects of High-Stakes Testing on an Embattled Profession's Curriculum Goals

    Science.gov (United States)

    Seymour, Clancy; Garrison, Mark

    2015-01-01

    Building on recent discussions regarding how current national standards for physical education promote cognitive outcomes over physical outcomes, the authors explore how a new era in high-stakes testing is also contributing to an emphasis on the cognitive, over the physical. While high-stakes testing has been linked to reducing the amount of…

  20. Soil washing physical separations test procedure - 300-FF-1 operable unit

    International Nuclear Information System (INIS)

    Belden, R.D.

    1993-01-01

    This procedure provides the operations approach, a field sampling plan, and laboratory procedures for a soil washing test to be conducted by Alternative Remedial Technologies, Inc. (ART) in the 300-FF-1 area at the Hanford site. The open-quotes Quality Assurance Project Plan for the Soil Washing Physical Separations Test, 300-FF-1 Operable Unit,close quotes Hanford, Washington, Alternative Remedial Technologies, Inc., February 1994 (QAPP) is provided in a separate document that presents the procedural and organizational guidelines for this test. This document describes specifications, responsibilities, and general procedures to be followed to conduct physical separation soil treatability tests in the North Process Pond of the 300-FF-1 Operable Unit (OU) at the Hanford Site. These procedures are based on the open-quotes 300-FF-1 Physical Separations CERCLA Treatability Test Plan, DOE/RL 92-2l,close quotes (DOE-RL 1993)

  1. Measurement of Function Post Hip Fracture: Testing a Comprehensive Measurement Model of Physical Function.

    Science.gov (United States)

    Resnick, Barbara; Gruber-Baldini, Ann L; Hicks, Gregory; Ostir, Glen; Klinedinst, N Jennifer; Orwig, Denise; Magaziner, Jay

    2016-07-01

    Measurement of physical function post hip fracture has been conceptualized using multiple different measures. This study tested a comprehensive measurement model of physical function. This was a descriptive secondary data analysis including 168 men and 171 women post hip fracture. Using structural equation modeling, a measurement model of physical function which included grip strength, activities of daily living, instrumental activities of daily living, and performance was tested for fit at 2 and 12 months post hip fracture, and among male and female participants. Validity of the measurement model of physical function was evaluated based on how well the model explained physical activity, exercise, and social activities post hip fracture. The measurement model of physical function fit the data. The amount of variance the model or individual factors of the model explained varied depending on the activity. Decisions about the ideal way in which to measure physical function should be based on outcomes considered and participants. The measurement model of physical function is a reliable and valid method to comprehensively measure physical function across the hip fracture recovery trajectory. © 2015 Association of Rehabilitation Nurses.

  2. Determinants of physical activity among people with spinal cord injury: a test of social cognitive theory.

    Science.gov (United States)

    Ginis, Kathleen A Martin; Latimer, Amy E; Arbour-Nicitopoulos, Kelly P; Bassett, Rebecca L; Wolfe, Dalton L; Hanna, Steven E

    2011-08-01

    Little theory-based research has focused on understanding and increasing physical activity among people with physical disabilities. Testing a social cognitive theory-based model of determinants is important for identifying variables to target in physical activity-enhancing interventions. The aim of this study is to examine Social Cognitive Theory variables as predictors of physical activity among people living with spinal cord injury. Structural equation modeling was used to test a model of Social Cognitive Theory predictors of physical activity (n=160). The model explained 39% of the variance in physical activity. Self-regulation was the only significant, direct predictor. Self-regulatory efficacy and outcome expectations had indirect effects, mediated by self-regulation. Social Cognitive Theory is useful for predicting physical activity in people with spinal cord injury. Self-regulation is the most potent Social Cognitive Theory predictor of physical activity in people with spinal cord injury. Self-regulation and its determinants should be targeted in physical activity-enhancing interventions.

  3. A Comparison of Objective Physical Performance Tests and Future Mortality in the Elderly People.

    Science.gov (United States)

    Veronese, Nicola; Stubbs, Brendon; Fontana, Luigi; Trevisan, Caterina; Bolzetta, Francesco; Rui, Marina De; Sartori, Leonardo; Musacchio, Estella; Zambon, Sabina; Maggi, Stefania; Perissinotto, Egle; Corti, Maria Chiara; Crepaldi, Gaetano; Manzato, Enzo; Sergi, Giuseppe

    2017-03-01

    Physical performance is an important predictor of mortality, but little is known on the comparative prognostic utility of different objective physical performance tests in community-dwelling older adults. We compared the prognostic usefulness of several objective physical performance tests on mortality, adjusting our analyses for potential confounders. Among 3,099 older community-dwelling participants included in the Progetto Veneto Anziani study, 2,096 were followed for a mean of 4.4 years. Physical performance tests measured were Short Physical Performance Battery (SPPB), 4-meter gait speed, chair stands time, leg extension and flexion, handgrip strength, and 6-Minute Walking Test (6MWT), treated as continuous variables and categorized in gender-specific quartiles. The main outcome was mortality assessed with death certificates. Participants who died during the follow-up (n = 327) scored significantly worse in all physical performance tests measured at baseline than those who survived (n = 1,769). Using a Harrell's C-index, the highest C-index was observed for 6MWT in men (C-index = 0.735; 95% confidence interval [CI]: 0.701-0.770, p elderly individuals who are at higher risk of death to improve clinical decision making. © The Author 2016. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  4. Training-test module in the system of pedagogical control of physical fitness in lower grades

    Directory of Open Access Journals (Sweden)

    I.N. Peleshenko

    2014-06-01

    Full Text Available Purpose : to substantiate model characteristics of physical fitness of elementary school students of secondary schools through the introduction of training and test module in the pedagogical control. Material : the study involved 320 boys and 278 girls in grades 1-4 schools in Kharkov number number 57, 112, 166. Results : the level of physical fitness of elementary school students with available motor tests and the results are compared between the experimental data and control classes. Found that the introduction of educational test module in the process of physical education in the experimental classes has enhanced the level of physical fitness. In the experimental classes compared to the control classes, there was an increase of indicators (boys 22.2%, girls 24.6%. Conclusions : the introduction of educational test module in the pedagogical control for primary school pupils, will improve the physical fitness of children in the experimental classes, compared with controls, as well as to determine the averages on basic motor tests that can be used as a model characteristics of physical fitness.

  5. Factors that encourage females to pursue physical science careers: Testing five common hypotheses

    Science.gov (United States)

    Hazari, Zahra; Potvin, Geoff; Lock, Robynne M.; Lung, Florin; Sadler, Philip M.; Sonnert, Gerhard

    2012-03-01

    There are many hypotheses regarding factors that may encourage female students to pursue careers in the physical sciences. Using Propensity Score Matching (PSM) on national data (n=7505) drawn from the Persistence Research in Science and Engineering (PRiSE) project, we test five commonly held beliefs including having a single-sex physics class, having a female physics teacher, having female scientist guest speakers in physics class, discussing the work of women scientists in physics class, and discussing the under-representation of women in physics class. The effect of these experiences is compared for female students who are matched on several factors, including parental education, prior science/math interests, and academic background, thereby controlling for the effect of many confounding variables.

  6. Physical aggression, compromised social support, and 10-year marital outcomes: Testing a relational spillover model.

    Science.gov (United States)

    Sullivan, Kieran T; Pasch, Lauri A; Lawrence, Erika; Bradbury, Thomas N

    2015-12-01

    The purpose of the present study was to test a relational spillover model of physical aggression whereby physical aggression affects marital outcomes due to its effects on how spouses ask for and provide support to one another. Newlywed couples (n = 172) reported levels of physical aggression over the past year and engaged in interactions designed to elicit social support; marital adjustment, and stability were assessed periodically over the first 10 years of marriage. Multilevel modeling revealed that negative support behavior mediated the relationship between physical aggression and 10-year marital adjustment levels whereas positive support behavior mediated the relationship between physical aggression and divorce status. These findings emphasize the need to look beyond conflict when explaining how aggression affects relationships and when working with couples with a history of physical aggression who are seeking to improve their relationships. (c) 2015 APA, all rights reserved).

  7. MO-AB-206-00: Nuclear Medicine Physics and Testing

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2016-06-15

    This education session will cover the physics and operation principles of gamma cameras and PET scanners. The first talk will focus on PET imaging. An overview of the principles of PET imaging will be provided, including positron decay physics, and the transition from 2D to 3D imaging. More recent advances in hardware and software will be discussed, such as time-of-flight imaging, and improvements in reconstruction algorithms that provide for options such as depth-of-interaction corrections. Quantitative applications of PET will be discussed, as well as the requirements for doing accurate quantitation. Relevant performance tests will also be described. Learning Objectives: Be able to describe basic physics principles of PET and operation of PET scanners. Learn about recent advances in PET scanner hardware technology. Be able to describe advances in reconstruction techniques and improvements Be able to list relevant performance tests. The second talk will focus on gamma cameras. The Nuclear Medicine subcommittee has charged a task group (TG177) to develop a report on the current state of physics testing of gamma cameras, SPECT, and SPECT/CT systems. The report makes recommendations for performance tests to be done for routine quality assurance, annual physics testing, and acceptance tests, and identifies those needed satisfy the ACR accreditation program and The Joint Commission imaging standards. The report is also intended to be used as a manual with detailed instructions on how to perform tests under widely varying conditions. Learning Objectives: At the end of the presentation members of the audience will: Be familiar with the tests recommended for routine quality assurance, annual physics testing, and acceptance tests of gamma cameras for planar imaging. Be familiar with the tests recommended for routine quality assurance, annual physics testing, and acceptance tests of SPECT systems. Be familiar with the tests of a SPECT/CT system that include the CT images

  8. An Experimental Test of Parenting Practices as a Mediator of Early Childhood Physical Aggression

    Science.gov (United States)

    Brotman, Laurie Miller; O'Neal, Colleen R.; Huang, Keng-Yen; Gouley, Kathleen Kiely; Rosenfelt, Amanda; Shrout, Patrick E.

    2009-01-01

    Background: Parenting practices predict early childhood physical aggression. Preventive interventions that alter parenting practices and aggression during early childhood provide the opportunity to test causal models of early childhood psychopathology. Although there have been several informative preventive intervention studies that test mediation…

  9. Self-Paced Physics, Documentation Report, Test Item Bank 5.3.

    Science.gov (United States)

    New York Inst. of Tech., Old Westbury.

    As a supplement to the principal reports, a compilation of criterion check items and diagnostic test items identified by terminal objectives is presented in this document relating to the U. S. Naval Academy Self-Paced Physics Course. Included are a progress check item bank, student terminal objective key sheets, quarterly diagnostic tests and…

  10. Destructive Physical Analysis of Flight- and Ground-Tested Sodium-Sulfur Cells

    Science.gov (United States)

    Wasz, Margot L.; Carter, Boyd J.; Donet, Charles M.; Baldwin, Richard S.

    1999-01-01

    Destructive physical analysis (DPA) was used to study the effects of microgravity on the sulfur electrode in sodium-sulfur cells. The cells examined in this work were provided by the Air Force Research Laboratory (AFRL) from their program on sodium-sulfur technology. The Naval Research Laboratory (NRL) provided electrical characterization of the flight-tested and ground-tested cells.

  11. Top 10 Research Questions Related to Musculoskeletal Physical Fitness Testing in Children and Adolescents

    Science.gov (United States)

    Plowman, Sharon Ann

    2014-01-01

    The purpose of this article is to bring attention to the 10 most pressing questions relevant to musculoskeletal physical fitness testing in children and adolescents. The goal is to stimulate research to answer these questions. The most pressing needs include establishing definitive links between valid, reliable, and feasible field test measures of…

  12. Association between physiological falls risk and physical performance tests among community-dwelling older adults

    Directory of Open Access Journals (Sweden)

    Singh DK

    2015-08-01

    Full Text Available Devinder KA Singh,1 Sharmila GK Pillai,1 Sin Thien Tan,1 Chu Chiau Tai,1 Suzana Shahar2 1Physiotherapy Programme, School of Rehabilitation Sciences, 2Nutrition and Dietetics Programme, School of Healthcare Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia Background: Physical performance and balance declines with aging and may lead to increased risk of falls. Physical performance tests may be useful for initial fall-risk screening test among community-dwelling older adults. Physiological profile assessment (PPA, a composite falls risk assessment tool is reported to have 75% accuracy to screen for physiological falls risk. PPA correlates with Timed Up and Go (TUG test. However, the association between many other commonly used physical performance tests and PPA is not known. The aim of the present study was to examine the association between physiological falls risk measured using PPA and a battery of physical performance tests.Methods: One hundred and forty older adults from a senior citizens club in Kuala Lumpur, Malaysia (94 females, 46 males, aged 60 years and above (65.77±4.61, participated in this cross-sectional study. Participants were screened for falls risk using PPA. A battery of physical performance tests that include ten-step test (TST, short physical performance battery (SPPB, functional reach test (FRT, static balance test (SBT, TUG, dominant hand-grip strength (DHGS, and gait speed test (GST were also performed. Spearman’s rank correlation and binomial logistic regression were performed to examine the significantly associated independent variables (physical performance tests with falls risk (dependent variable.Results: Approximately 13% older adults were at high risk of falls categorized using PPA. Significant differences (P<0.05 were demonstrated for age, TST, SPPB, FRT, SBT, TUG between high and low falls risk group. A significant (P<0.01 weak correlation

  13. Physical properties of VNTR data, and their impact on a test of allelic independence

    Energy Technology Data Exchange (ETDEWEB)

    Devlin, B.; Risch, N. (Yale Univ., New Haven, CT (United States))

    1993-08-01

    In this article the authors describe the physical properties of VNTR data, as well as their effects on the two-dimensional distribution of fragment pairs. Tests of independence of alleles at a locus may confound those physical properties with allele independence. A recently proposed test by Geisser and Johnson is an example. The authors show that alleles can be strictly independent, yet the proposed test suggests large violations of allele independence because it is sensitive to well-known electrophoretic phenomena. 7 refs., 4 tabs.

  14. Preliminary analyses for HTTR's start-up physics tests by Monte Carlo code MVP

    International Nuclear Information System (INIS)

    Nojiri, Naoki; Nakano, Masaaki; Ando, Hiroei; Fujimoto, Nozomu; Takeuchi, Mitsuo; Fujisaki, Shingo; Yamashita, Kiyonobu

    1998-08-01

    Analyses of start-up physics tests for High Temperature Engineering Test Reactor (HTTR) have been carried out by Monte Carlo code MVP based on continuous energy method. Heterogeneous core structures were modified precisely, such as the fuel compacts, fuel rods, coolant channels, burnable poisons, control rods, control rod insertion holes, reserved shutdown pellet insertion holes, gaps between graphite blocks, etc. Such precise modification of the core structures was difficult with diffusion calculation. From the analytical results, the followings were confirmed; The first criticality will be achieved around 16 fuel columns loaded. The reactivity at the first criticality can be controlled by only one control rod located at the center of the core with other fifteen control rods fully withdrawn. The excess reactivity, reactor shutdown margin and control rod criticality positions have been evaluated. These results were used for planning of the start-up physics tests. This report presents analyses of start-up physics tests for HTTR by MVP code. (author)

  15. Diagnostic accuracy of scapular physical examination tests for shoulder disorders: a systematic review.

    Science.gov (United States)

    Wright, Alexis A; Wassinger, Craig A; Frank, Mason; Michener, Lori A; Hegedus, Eric J

    2013-09-01

    To systematically review and critique the evidence regarding the diagnostic accuracy of physical examination tests for the scapula in patients with shoulder disorders. A systematic, computerised literature search of PubMED, EMBASE, CINAHL and the Cochrane Library databases (from database inception through January 2012) using keywords related to diagnostic accuracy of physical examination tests of the scapula. The Quality Assessment of Diagnostic Accuracy Studies tool was used to critique the quality of each paper. Eight articles met the inclusion criteria; three were considered to be of high quality. Of the three high-quality studies, two were in reference to a 'diagnosis' of shoulder pain. Only one high-quality article referenced specific shoulder pathology of acromioclavicular dislocation with reported sensitivity of 71% and 41% for the scapular dyskinesis and SICK scapula test, respectively. Overall, no physical examination test of the scapula was found to be useful in differentially diagnosing pathologies of the shoulder.

  16. Hip joint pathology: relationship between patient history, physical tests, and arthroscopy findings in clinical practice.

    Science.gov (United States)

    Tijssen, M; van Cingel, R E H; de Visser, E; Hölmich, P; Nijhuis-van der Sanden, M W G

    2017-03-01

    The purpose of this retrospective cohort study was to (a) describe the clinical presentation of femoroacetabular impingement (FAI) and hip labral pathology; (b) describe the accuracy of patient history and physical tests for FAI and labral pathology as confirmed by hip arthroscopy. Patients (18-65 years) were included if they were referred to a physical therapist to gather pre-operative data and were then diagnosed during arthroscopy. Results of pre-operative patient history and physical tests were collected and compared to arthroscopy. Data of 77 active patients (mean age: 37 years) were included. Groin as main location of pain, the Anterior Impingement test (AIT), Flexion-Abduction-External Rotation (FABER) test, and Fitzgerald test had a high sensitivity (range 0.72-0.91). Sensitivity increased when combining these tests (0.97) as either groin as main location of pain and a positive FABER test or a positive AIT and a positive FABER test were the shortest most sensitive combinations. The results of this study point out that in clinical practice absence of groin as main location of pain combined with a negative FABER test or the combination of a negative AIT and a negative FABER test are suggested to rule out the diagnosis of symptomatic FAI and/or labral pathology. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  17. Reliability of health-related physical fitness tests in adolescents: the MOVE Program.

    Science.gov (United States)

    Vanhelst, Jérémy; Béghin, Laurent; Fardy, Paul S; Ulmer, Zekya; Czaplicki, Grégory

    2016-03-01

    The aim was to examine the reliability of health-related physical fitness tests that were used in a French health promotion program 'Move…A priority for your health'. Participants were 174 French youth (88 children and 86 adolescents) aged 8·2-16·2 years. Aerobic fitness, muscular strength, speed and flexibility were tested using 20-m shuttle run test, ½ mile run test, basketball throw, standing long jump, shoulder stretch and 20/30/50-m sprint tests. Reliability was calculated for the basketball throw, standing long jump, shoulder stretch and sprint tests. The tests were performed two times, 1 week apart on the same day of the week. Reliability was examined with intraclass correlation coefficients (ICCs) and Bland-Altman analysis. With the exception of the ½ mile run test, which resulted in moderate agreement (0·66), all tests had high reliability. ICCs were 0·97, 0·93, 0·91 and 0·93 for the sprint test, basketball throw, shoulder stretch and the standing long jump, respectively. The differences obtained between the first and the second trial were non-significant. Results from this study indicate that the BOUGE health-related physical fitness battery, administrated by physical education teachers, was reliable for measuring health-related components of fitness in children and adolescents in a school setting. © 2014 Scandinavian Society of Clinical Physiology and Nuclear Medicine. Published by John Wiley & Sons Ltd.

  18. REVEALING STUDENTS' COGNITIVE STRUCTURE ABOUT PHYSICAL AND CHEMICAL CHANGE: USE OF A WORD ASSOCIATION TEST

    OpenAIRE

    Hasene Esra Yildirir; Hatice Demirkol

    2018-01-01

    The current study aimed at examining the utility of a word association test in revealing students’ cognitive structure in a specific chemistry topic through a word association test. The participants were 153 6th graders in a western Turkish city. The results revealed that the word association test serves a useful purpose in exploring the students’ cognitive structure with regard to physical and chemical change and identifying their misconceptions about this topic. Some students gave irrelevan...

  19. Factors that affect the physical science career interest of female students: Testing five common hypotheses

    Science.gov (United States)

    Hazari, Zahra; Potvin, Geoff; Lock, Robynne M.; Lung, Florin; Sonnert, Gerhard; Sadler, Philip M.

    2013-12-01

    There are many hypotheses regarding factors that may encourage female students to pursue careers in the physical sciences. Using multivariate matching methods on national data drawn from the Persistence Research in Science and Engineering (PRiSE) project (n=7505), we test the following five commonly held beliefs regarding what factors might impact females’ physical science career interest: (i) having a single-sex physics class, (ii) having a female physics teacher, (iii) having female scientist guest speakers in physics class, (iv) discussing the work of female scientists in physics class, and (v) discussing the underrepresentation of women in physics class. The effect of these experiences on physical science career interest is compared for female students who are matched on several factors, including prior science interests, prior mathematics interests, grades in science, grades in mathematics, and years of enrollment in high school physics. No significant effects are found for single-sex classes, female teachers, female scientist guest speakers, and discussing the work of female scientists. However, discussions about women’s underrepresentation have a significant positive effect.

  20. Physics of Colloids in Space--Plus (PCS+) Experiment Completed Flight Acceptance Testing

    Science.gov (United States)

    Doherty, Michael P.

    2004-01-01

    The Physics of Colloids in Space--Plus (PCS+) experiment successfully completed system-level flight acceptance testing in the fall of 2003. This testing included electromagnetic interference (EMI) testing, vibration testing, and thermal testing. PCS+, an Expedite the Process of Experiments to Space Station (EXPRESS) Rack payload will deploy a second set of colloid samples within the PCS flight hardware system that flew on the International Space Station (ISS) from April 2001 to June 2002. PCS+ is slated to return to the ISS in late 2004 or early 2005.

  1. Reliability of physical examination tests for the diagnosis of knee disorders: Evidence from a systematic review.

    Science.gov (United States)

    Décary, Simon; Ouellet, Philippe; Vendittoli, Pascal-André; Desmeules, François

    2016-12-01

    Clinicians often rely on physical examination tests to guide them in the diagnostic process of knee disorders. However, reliability of these tests is often overlooked and may influence the consistency of results and overall diagnostic validity. Therefore, the objective of this study was to systematically review evidence on the reliability of physical examination tests for the diagnosis of knee disorders. A structured literature search was conducted in databases up to January 2016. Included studies needed to report reliability measures of at least one physical test for any knee disorder. Methodological quality was evaluated using the QAREL checklist. A qualitative synthesis of the evidence was performed. Thirty-three studies were included with a mean QAREL score of 5.5 ± 0.5. Based on low to moderate quality evidence, the Thessaly test for meniscal injuries reached moderate inter-rater reliability (k = 0.54). Based on moderate to excellent quality evidence, the Lachman for anterior cruciate ligament injuries reached moderate to excellent inter-rater reliability (k = 0.42 to 0.81). Based on low to moderate quality evidence, the Tibiofemoral Crepitus, Joint Line and Patellofemoral Pain/Tenderness, Bony Enlargement and Joint Pain on Movement tests for knee osteoarthritis reached fair to excellent inter-rater reliability (k = 0.29 to 0.93). Based on low to moderate quality evidence, the Lateral Glide, Lateral Tilt, Lateral Pull and Quality of Movement tests for patellofemoral pain reached moderate to good inter-rater reliability (k = 0.49 to 0.73). Many physical tests appear to reach good inter-rater reliability, but this is based on low-quality and conflicting evidence. High-quality research is required to evaluate the reliability of knee physical examination tests. Copyright © 2016 Elsevier Ltd. All rights reserved.

  2. Cyber-Physical Energy Systems Modeling, Test Specification, and Co-Simulation Based Testing

    DEFF Research Database (Denmark)

    van der Meer, A. A.; Palensky, P.; Heussen, Kai

    2017-01-01

    The gradual deployment of intelligent and coordinated devices in the electrical power system needs careful investigation of the interactions between the various domains involved. Especially due to the coupling between ICT and power systems a holistic approach for testing and validating is required...

  3. Start up physics tests of units 5 and 6 (WWER 1000) at Kozloduy NPP by comparison with the calculated neutron physics characteristics

    International Nuclear Information System (INIS)

    Antov, A.; Stoyanova, I.

    2008-01-01

    In conjunction with each refuelling shutdown of the reactor core, nuclear design calculations are performed to ensure that the reactor physics characteristics of the new core will be consistent with the safety limits. Prior to return to normal operation, a physics test program is required to determine if the operating characteristics of the core are consistent with the design predictions and to ensure that the core can be operated as designed. Successful completion of the physics test program is demonstrated when the test results agree with the predicted results within predetermined test criteria. Successful completion of the physics test program and successful completion of other tests, which are performed after each refuelling provides assurance that the plant can be operated as designed. The calculated neutron-physics characteristics values of Kozloduy NPP Unit 5 and Unit 6 (WWER 1000) obtained by the computer code package KASKAD are compared with the obtained results during the start up physics tests. The core fuel loading consists of 163 fuel assemblies (FAs). The calculated values are given according to actual experimental conditions of the reactor core during start up physics tests. The report includes comparisons between calculation results by code package KASKAD (BIPR7A) and experimental data values of main neutron-physics characteristics during start up physics tests in selected recent cycles of Kozloduy NPP Unit 5 and Unit 6. (authors)

  4. Physical test report to drop test of a 9975 radioactive material shipping packaging

    International Nuclear Information System (INIS)

    Blanton, P.S.

    1997-01-01

    This report presents the drop test results for the 9975 radioactive material shipping package being dropped 30 feet onto a unyielding surface followed by a 40-inch puncture pin drop. The purpose of these drops was to show that the package lid would remain attached to the drum. The 30-foot drop was designed to weaken the lid closure lug while still maintaining maximum extension of the lugs from the drum surface. This was accomplished by angling the drum approximately 30 degrees from horizontal in an inverted position. In this position, the drum was rotated slightly so as not to embed the closure lugs into the drum as a result of the 30-foot drop. It was determined that this orientation would maximize deformation to the closure ring around the closure lug while still maintaining the extension of the lugs from the package surface. The second drop was from 40 inches above a 40-inch tall 6-inch diameter puncture pin. The package was angled 10 degrees from vertical and aligned over the puncture pin to solidly hit the drum lug(s) in an attempt to disengage the lid when dropped.Tests were performed in response to DOE EM-76 review Q5 inquires that questioned the capability of the 9975 drum lid to remain in place under this test sequence. Two packages were dropped utilizing this sequence, a 9974 and 9975. Test results for the 9974 package are reported in WSRC-RP-97-00945. A series of 40-inch puncture pin tests were also performed on undamaged 9975 and 9974 packages

  5. Measurement of talent in team handball: the questionable use of motor and physical tests.

    Science.gov (United States)

    Lidor, Ronnie; Falk, Bareket; Arnon, Michal; Cohen, Yoram; Segal, Gil; Lander, Yael

    2005-05-01

    Testing for selection is one of the most important fundamentals in any multistep sport program. In most ball games, coaches assess motor, physical, and technical skills on a regular basis in early stages of talent identification and development. However, selection processes are complex, are often unstructured, and lack clear-cut theory-based knowledge. For example, little is known about the relevance of the testing process to the final selection of the young prospects. The purpose of this study was to identify motor, physical, and skill variables that could provide coaches with relevant information in the selection process of young team handball players. In total, 405 players (12-13 years of age at the beginning of the testing period) were recommended by their coaches to undergo a battery of tests prior to selection to the Junior National Team. This number is the sum of all players participating in the different phases of the program. However, not all of them took part in each testing phase. The battery included physical measurements (height and weight), a 4 x 10-m running test, explosive power tests (medicine ball throw and standing long jump), speed tests (a 20-m sprint from a standing position and a 20-m sprint with a flying start), and a slalom dribbling test. Comparisons between those players eventually selected to the Junior National Team 2-3 years later with those not selected demonstrated that only the skill test served as a good indicator. In all other measurements, a wide overlap could be seen between the results of the selected and nonselected players. It is suggested that future studies investigate the usefulness of tests reflecting more specific physical ability and cognitive characteristics.

  6. Procedures and reasoning for skill proficiency testing in physical education teacher education programs

    Directory of Open Access Journals (Sweden)

    Timothy Baghurst

    2015-12-01

    Full Text Available This study sought to determine how the testing of skill proficiency is being conducted in physical education teacher education (PETE programs in the USA and how fitness or skill proficiencies, as attributes of a physical educator, are perceived. Participants were 312 college PETE program coordinators who completed an online survey about skill testing in their program. The eligible respondents yielded a 52.7% total response rate. Most participants believed that skill proficiency for PETE students was important, but only 46% of programs reported testing within their program. Many participants stated it was possible for their students to graduate without demonstrating proficiency in skill technique, yet were confident their students would pass an independent skill test. Only 46.2% of respondents indicated their students needed to demonstrate proper skill technique in order to graduate, and there was no consistent method of assessment. Responses were evenly split regarding the importance of a physical educator being able to demonstrate proper skill technique or be physically fit. The lack of skill testing in programs, combined with the variation in assessment, is concerning, and the development of a standardized skill-based test may provide more rigor to this important area of teacher credibility and effectiveness.

  7. An experimental test of parenting practices as a mediator of early childhood physical aggression.

    Science.gov (United States)

    Brotman, Laurie Miller; O'Neal, Colleen R; Huang, Keng-Yen; Gouley, Kathleen Kiely; Rosenfelt, Amanda; Shrout, Patrick E

    2009-03-01

    Parenting practices predict early childhood physical aggression. Preventive interventions that alter parenting practices and aggression during early childhood provide the opportunity to test causal models of early childhood psychopathology. Although there have been several informative preventive intervention studies that test mediation models in older children, no such studies have been conducted with younger children at high risk for psychopathology. Within the context of a randomized controlled trial, we examined whether changes in parenting practices mediate the effects of a family intervention on observed physical aggression among African American and Latino younger siblings of adjudicated youths. Improved parenting practices partially mediated the intervention effect on physical aggression. Improvements in harsh parenting, responsive parenting, and stimulating parenting explained a significant amount of the intervention effect on child physical aggression observed in the context of parent-child interactions. Parenting practices accounted for 38% of the intervention effect on physical aggression. There was support for the hypothesized model of the prevention of physical aggression during early childhood. Intervention benefits on parenting practices partially accounted for intervention effects on physical aggression in young high-risk children.

  8. Diagnostic Accuracy of 3 Physical Examination Tests in the Assessment of Hip Microinstability.

    Science.gov (United States)

    Hoppe, Daniel J; Truntzer, Jeremy N; Shapiro, Lauren M; Abrams, Geoffrey D; Safran, Marc R

    2017-11-01

    Hip microinstability is a diagnosis gaining increasing interest. Physical examination tests to identify microinstability have not been objectively investigated using intraoperative confirmation of instability as a reference standard. To determine the test characteristics and diagnostic accuracy of 3 physical examination maneuvers in the detection of hip microinstability. Cohort study (diagnosis); Level of evidence, 2. A review was conducted of 194 consecutive hip arthroscopic procedures performed by a sports medicine surgeon at a tertiary-care academic center. Physical examination findings of interest, including the abduction-hyperextension-external rotation (AB-HEER) test, the prone instability test, and the hyperextension-external rotation (HEER) test, were obtained from prospectively collected data. The reference standard was intraoperative identification of instability based on previously published objective criteria. Test characteristics, including sensitivity, specificity, positive and negative predictive values, and accuracy, were calculated for each test as well as for combinations of tests. A total of 109 patients were included in the analysis. The AB-HEER test was most accurate, with a sensitivity of 80.6% (95% CI, 70.8%-90.5%) and a specificity of 89.4% (95% CI, 80.5%-98.2%). The prone instability test had a low sensitivity (33.9%) but a very high specificity (97.9%). The HEER test performed second in both sensitivity (71.0%) and specificity (85.1%). The combination of multiple tests with positive findings did not yield significantly greater accuracy. All tests had high positive predictive values (range, 86.3%-95.5%) and moderate negative predictive values (range, 52.9%-77.8%). When all 3 tests had positive findings, there was a 95.0% (95% CI, 90.1%-99.9%) chance that the patient had microinstability. The AB-HEER test most accurately predicted hip instability, followed by the HEER test and the prone instability test. However, the high specificity of the

  9. The modified total body rotation test: a rapid, reliable assessment of physical function in older adults.

    Science.gov (United States)

    Stanziano, Damian C; Signorile, Joseph F; Mow, Sara; Davidson, Erin E; Ouslander, Joseph G; Roos, Bernard A

    2010-10-01

    To describe a quick, modified measure of total body rotation with performance rankings for elderly persons and to highlight the importance of total body rotational ability for overall physical performance. Scores were collected during the same testing session and were compared with other measures using a Pearson correlation. Community-based senior centers. One hundred forty-five participants aged 79.6±7.2 were recruited using flyers distributed at health fairs, senior centers, and lifelong learning programs. The modified total body rotation test (MTBR), the back-scratch test, the modified sit-and-reach test, the 30-second chair-stand test, the Short Physical Performance Battery, and the short version of the Continuous-Scale Physical Functional Performance Test. The MBTR significantly correlated to all standard measures of physical performance. Norms are reported for all participants, and reliability analyses were conducted using data from 18 participants. Data were divided into quintiles to create cutoffs for physical performance rankings that can be used when reporting results to the general public. Many evaluations measure isolated components of physical performance, but few examine whole body movements that allow all components necessary for independence and function to work in harmony as needed considering the task and the individual's movement strategy. The current study offers the MTBR as a quick, easy, and cost-effective evaluation method to quantify the degree of impairment or injury and the rate of improvement with treatment or training. © 2010, Copyright the Authors. Journal compilation © 2010, The American Geriatrics Society.

  10. Validity of Combining History Elements and Physical Examination Tests to Diagnose Patellofemoral Pain.

    Science.gov (United States)

    Décary, Simon; Frémont, Pierre; Pelletier, Bruno; Fallaha, Michel; Belzile, Sylvain; Martel-Pelletier, Johanne; Pelletier, Jean-Pierre; Feldman, Debbie; Sylvestre, Marie-Pierre; Vendittoli, Pascal-André; Desmeules, François

    2018-04-01

    To assess the validity of diagnostic clusters combining history elements and physical examination tests to diagnose or exclude patellofemoral pain (PFP). Prospective diagnostic study. Orthopedic outpatient clinics, family medicine clinics, and community-dwelling. Consecutive patients (N=279) consulting one of the participating orthopedic surgeons (n=3) or sport medicine physicians (n=2) for any knee complaint. Not applicable. History elements and physical examination tests were obtained by a trained physiotherapist blinded to the reference standard: a composite diagnosis including both physical examination tests and imaging results interpretation performed by an expert physician. Penalized logistic regression (least absolute shrinkage and selection operator) was used to identify history elements and physical examination tests associated with the diagnosis of PFP, and recursive partitioning was used to develop diagnostic clusters. Diagnostic accuracy measures including sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios with associated 95% confidence intervals (CIs) were calculated. Two hundred seventy-nine participants were evaluated, and 75 had a diagnosis of PFP (26.9%). Different combinations of history elements and physical examination tests including the age of participants, knee pain location, difficulty descending stairs, patellar facet palpation, and passive knee extension range of motion were associated with a diagnosis of PFP and used in clusters to accurately discriminate between individuals with PFP and individuals without PFP. Two diagnostic clusters developed to confirm the presence of PFP yielded a positive likelihood ratio of 8.7 (95% CI, 5.2-14.6) and 3 clusters to exclude PFP yielded a negative likelihood ratio of .12 (95% CI, .06-.27). Diagnostic clusters combining common history elements and physical examination tests that can accurately diagnose or exclude PFP compared to various knee

  11. Physical examination tests for the diagnosis of posterior cruciate ligament rupture: a systematic review.

    Science.gov (United States)

    Kopkow, Christian; Freiberg, Alice; Kirschner, Stephan; Seidler, Andreas; Schmitt, Jochen

    2013-11-01

    Systematic literature review. To summarize and evaluate research on the accuracy of physical examination tests for diagnosis of posterior cruciate ligament (PCL) tear. Rupture of the PCL is a severe knee injury that can lead to delayed rehabilitation, instability, or chronic knee pathologies. To our knowledge, there is currently no systematic review of studies on the diagnostic accuracy of clinical examination tests to evaluate the integrity of the PCL. A comprehensive systematic literature search was conducted in MEDLINE from 1946, Embase from 1974, and the Allied and Complementary Medicine Database from 1985 until April 30, 2012. Studies were considered eligible if they compared the results of physical examination tests performed in the context of a PCL physical examination to those of a reference standard (arthroscopy, arthrotomy, magnetic resonance imaging). Methodological quality assessment was performed by 2 independent reviewers using the revised version of the Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) tool. The search strategy revealed 1307 articles, of which 11 met the inclusion criteria for this review. In these studies, 11 different physical examination tests were identified. Due to differences in study types, different patient populations, and methodological quality, meta-analysis was not indicated. Presently, most physical examination tests have not been evaluated sufficiently enough to be confident in their ability to either confirm or rule out a PCL tear. The diagnostic accuracy of physical examination tests to assess the integrity of the PCL is largely unknown. There is a strong need for further research in this area. Level of Evidence Diagnosis, level 3a.

  12. Analysis for first startup physics test for Unit 1 of Ningde Nuclear Power Plant

    International Nuclear Information System (INIS)

    Bai Chengfei; Wang Lei; Fu Xuefeng; Zhang Hong; Wang Chuang; Zhang Songwen; Li Junde

    2014-01-01

    The gadolinium is used as the burnable poison for the first cycle of Unit l of Ningde Nuclear Power Plant, and it is the first time to apply it on a commercial PWR in the world. The results of the first startup physics test are very important for evaluating the core design. This paper describes the calculation methods, codes and comparisons between the calculation values and experimental results for the first reactor startup physics test. The results showed that the calculated theoretical values are consistent with the measured values. (authors)

  13. A new model test in high energy physics in frequentist and bayesian statistical formalisms

    International Nuclear Information System (INIS)

    Kamenshchikov, A.

    2017-01-01

    The problem of a new physical model test using observed experimental data is a typical one for modern experiments in high energy physics (HEP). A solution of the problem may be provided with two alternative statistical formalisms, namely frequentist and Bayesian, which are widely spread in contemporary HEP searches. A characteristic experimental situation is modeled from general considerations, and both the approaches are utilized in order to test a new model. The results are juxtaposed, which demonstrates their consistency in this work. An effect of a systematic uncertainty treatment in the statistical analysis is also considered.

  14. Physical Stress Echocardiography: Prediction of Mortality and Cardiac Events in Patients with Exercise Test showing Ischemia

    Directory of Open Access Journals (Sweden)

    Ana Carla Pereira de Araujo

    2014-11-01

    Full Text Available Background: Studies have demonstrated the diagnostic accuracy and prognostic value of physical stress echocardiography in coronary artery disease. However, the prediction of mortality and major cardiac events in patients with exercise test positive for myocardial ischemia is limited. Objective: To evaluate the effectiveness of physical stress echocardiography in the prediction of mortality and major cardiac events in patients with exercise test positive for myocardial ischemia. Methods: This is a retrospective cohort in which 866 consecutive patients with exercise test positive for myocardial ischemia, and who underwent physical stress echocardiography were studied. Patients were divided into two groups: with physical stress echocardiography negative (G1 or positive (G2 for myocardial ischemia. The endpoints analyzed were all-cause mortality and major cardiac events, defined as cardiac death and non-fatal acute myocardial infarction. Results: G2 comprised 205 patients (23.7%. During the mean 85.6 ± 15.0-month follow-up, there were 26 deaths, of which six were cardiac deaths, and 25 non-fatal myocardial infarction cases. The independent predictors of mortality were: age, diabetes mellitus, and positive physical stress echocardiography (hazard ratio: 2.69; 95% confidence interval: 1.20 - 6.01; p = 0.016. The independent predictors of major cardiac events were: age, previous coronary artery disease, positive physical stress echocardiography (hazard ratio: 2.75; 95% confidence interval: 1.15 - 6.53; p = 0.022 and absence of a 10% increase in ejection fraction. All-cause mortality and the incidence of major cardiac events were significantly higher in G2 (p < 0. 001 and p = 0.001, respectively. Conclusion: Physical stress echocardiography provides additional prognostic information in patients with exercise test positive for myocardial ischemia.

  15. The physical therapy profile questionnaire (PTPQ: development, validation and pilot testing

    Directory of Open Access Journals (Sweden)

    Grimmer-Somers Karen

    2011-09-01

    Full Text Available Abstract Background Country by country similarities and differences in physical therapy practice exists. Therefore, before updates in practice can be provided, such as trainings in evidence-based practice, it is necessary to identify the profile and nature of practice in a given country or setting. Following a search of the international literature, no appropriate tool was identified to collect and establish data to create the profile of physical therapy practice in the Philippines. We therefore developed, validated and pilot tested a survey instrument which would comprehensively describe the practice of physical therapy in the Philippines Findings We used a mixed methods design to answer our study aims. A focus group interview was conducted among a group of physical therapists to establish the content and contexts of items to be included in the survey instrument. Findings were amalgamated with the information from the literature on developing survey instruments/questionnaires. A survey instrument was drafted and named as the Physical Therapy Profile Questionnaire (PTPQ. The PTPQ was then validated and pilot tested to a different group of physical therapists. The final version consisted of five separate parts namely (A General information and demographics, (B Practice Profile, (C Treatment Preferences, (D Bases for clinical work and (E Bases for educational/research work. At present the PTPQ is relevant to the Philippines and could be used by any country which has a similar nature of practice with the Philippines. Conclusion The Physical Therapy Practice Questionnaire (PTPQ was shown to have good face and content validity among the Filipino physical therapists and their context of practice. It has also been found to be useful, easy to administer tool and in a format appealing to respondents. The PTPQ is expected to assist comprehensive data collection to create a profile of physical therapy practice in the Philippines.

  16. The physical therapy profile questionnaire (PTPQ): development, validation and pilot testing.

    Science.gov (United States)

    Dizon, Janine Margarita R; Grimmer-Somers, Karen; Kumar, Saravana

    2011-09-19

    Country by country similarities and differences in physical therapy practice exists. Therefore, before updates in practice can be provided, such as trainings in evidence-based practice, it is necessary to identify the profile and nature of practice in a given country or setting. Following a search of the international literature, no appropriate tool was identified to collect and establish data to create the profile of physical therapy practice in the Philippines. We therefore developed, validated and pilot tested a survey instrument which would comprehensively describe the practice of physical therapy in the Philippines We used a mixed methods design to answer our study aims. A focus group interview was conducted among a group of physical therapists to establish the content and contexts of items to be included in the survey instrument. Findings were amalgamated with the information from the literature on developing survey instruments/questionnaires. A survey instrument was drafted and named as the Physical Therapy Profile Questionnaire (PTPQ). The PTPQ was then validated and pilot tested to a different group of physical therapists.The final version consisted of five separate parts namely (A) General information and demographics, (B) Practice Profile, (C) Treatment Preferences, (D) Bases for clinical work and (E) Bases for educational/research work. At present the PTPQ is relevant to the Philippines and could be used by any country which has a similar nature of practice with the Philippines. The Physical Therapy Practice Questionnaire (PTPQ) was shown to have good face and content validity among the Filipino physical therapists and their context of practice. It has also been found to be useful, easy to administer tool and in a format appealing to respondents. The PTPQ is expected to assist comprehensive data collection to create a profile of physical therapy practice in the Philippines.

  17. Improving the exam experience: Testing test procedures in introductory physical science courses at a two-year college

    Science.gov (United States)

    Marton, F.; McCrary, M.

    2013-12-01

    Bergen Community College (BCC) is a two-year college in the New York City metropolitan area with a diverse student body and total enrollment of approximately 17,000. Most students have a gen-ed requirement of two lab science courses which employ numerous methods of assessment, including tests. Traditionally, students take tests individually and often, once they get back the graded tests, glance over the results and file the tests away. In addition to individual test-taking, we have begun using and comparing two types of procedures to see how their understanding of the material may improve in introductory-level geology and physics classes. The first procedure explored the benefit of group work to reinforce concepts, worth 20% of the overall test grade. Conceptual and algebra-based physics classes took short group tests, consisting of open-ended challenge questions, preceding their traditional, individual exam. We found the group testing significantly helped the physics students; in some cases, counting for more than 20% of their overall test grade. Because those problems were done at the beginning of the test, it helped many students reinforce their understanding of the physics concepts through intense group discussion, which allowed them to be more relaxed and confident when they did their individual problems. In geology, the students re-did the T/F, MC, and fill-in questions that they answered independently first. By consulting with their fellow students, they were able to talk over the concepts and correct their answers if they felt they were initially wrong. Overall, when the questions were re-done during the group testing, the median improvement in correct answers was 16-24%. Moreover, students generally felt either confident in their answers or, if they changed them, understood the concepts better. For the second type of test procedure, students in a geology class were able to make corrections to the T/F, MC, and fill-in questions that they got wrong. If they

  18. Testing Gravitational Physics with Space-based Gravitational-wave Observations

    Science.gov (United States)

    Baker, John G.

    2011-01-01

    Gravitational wave observations provide exceptional and unique opportunities for precision tests of gravitational physics, as predicted by general relativity (GR). Space-based gravitational wave measurements, with high signal-to-noise ratios and large numbers of observed events may provide the best-suited gravitational-wave observations for testing GR with unprecedented precision. These observations will be especially useful in testing the properties of gravitational waves and strong-field aspects of the theory which are less relevant in other observations. We review the proposed GR test based on observations of massive black hole mergers, extreme mass ratio inspirals, and galactic binary systems.

  19. Validation of the Physics Analysis used to Characterize the AGR-1 TRISO Fuel Irradiation Test

    Energy Technology Data Exchange (ETDEWEB)

    Sterbentz, James W.; Harp, Jason M.; Demkowicz, Paul A.; Hawkes, Grant L.; Chang, Gray S.

    2015-05-01

    The results of a detailed physics depletion calculation used to characterize the AGR-1 TRISO-coated particle fuel test irradiated in the Advanced Test Reactor (ATR) at the Idaho National Laboratory are compared to measured data for the purpose of validation. The particle fuel was irradiated for 13 ATR power cycles over three calendar years. The physics analysis predicts compact burnups ranging from 11.30-19.56% FIMA and cumulative neutron fast fluence from 2.21?4.39E+25 n/m2 under simulated high-temperature gas-cooled reactor conditions in the ATR. The physics depletion calculation can provide a full characterization of all 72 irradiated TRISO-coated particle compacts during and post-irradiation, so validation of this physics calculation was a top priority. The validation of the physics analysis was done through comparisons with available measured experimental data which included: 1) high-resolution gamma scans for compact activity and burnup, 2) mass spectrometry for compact burnup, 3) flux wires for cumulative fast fluence, and 4) mass spectrometry for individual actinide and fission product concentrations. The measured data are generally in very good agreement with the calculated results, and therefore provide an adequate validation of the physics analysis and the results used to characterize the irradiated AGR-1 TRISO fuel.

  20. Physical, mechanical and rheological properties of polymers: test facilities and experiences

    International Nuclear Information System (INIS)

    Zahid Abdullah

    2005-01-01

    The laboratories in polymer pilot plant of BTPS, MINT TECH-PARK well equipped with various polymer testing facilities. The determination of physical, mechanical and rheological properties of polymers are very important not only for research purpose but also for characterizations of polymer products from industries. This paper illustrates the polymer testing facilities available at polymer pilot plant of BTPS. The discussion includes the list of equipment, applications, customers, experience and problem faced during the daily operation. (Author)

  1. Development of a Physical Employment Testing Battery for Infantry Soldiers: 11B Infantryman and 11C Infantryman-Indirect Fire

    Science.gov (United States)

    2015-12-01

    the Army Physical Fitness Test (APFT). This test creates a score based on the number of push-ups performed in two minutes, the number of sit-ups...signed a consent form, and completed questionnaires about their demographics and most recent Army Physical Fitness Test (APFT). Height and weight in...studies will be conducted at Ft Stewart, GA to identify simple physical fitness tests that can be used to predict performance on the task simulations

  2. Electrophysiological predictors of sudden cardiac death on physical exercise test in young athletes

    Science.gov (United States)

    Balykova, L. A.; Kotlyarov, A. A.; Ivyanskiy, S. A.; Shirokova, A. A.; Miheeva, K. A.; Makarov, L. M.

    2017-01-01

    The problem of sudden death of young athletes continues to be actual. Among its reasons, primary electric myocardium diseases along with organic heart troubles (cardiomyopathies, cordites, anomalies of coronary arteries) take an important place. The most frequent variant of channelopathesis long QT syndrome (LQTS). Both inherited and acquired LQTS may be the reason of sudden cardiac death during physical activity and have to be revealed prior to sports admission. LQTS diagnostics in young athletes become problematic due to secondary exercise-related QT prolongation. Physical load test may reveal myocardium electric instability and enhance LQTS diagnostics accuracy without genetic testing. The aim was to study electrophysiological parameters of myocardium repolarization and reveal the signs of electrical instability as predictors of the life-threatening arrhythmias in young athletes during physical exercise test. In conclusion, electrophysiological myocardium parameters during physical exercise test noted to be markers of electrical myocardial instability and in combination with the other Schwartz criteria, was evidenced the inherited or acquired LQTS. QTc prolongation in athletes at the peak of exercise as well as in early recovery period were noted to be additional predictor life-threatening arrhythmias and sudden cardiac death in young athletes

  3. Physical and mechanical testing of essential oil-embedded cellulose ester films

    Science.gov (United States)

    Polymer films made from cellulose esters are useful for embedding plant essential oils, either for food packaging or air freshener applications. Studies and testing were done on the physical and mechanical properties of cellulose ester-based films incorporating essential oils (EO) from lemongrass (C...

  4. Density-dependent effects on physical condition and reproduction in North American elk: an experimental test.

    Science.gov (United States)

    Kelley M. Stewart; R. Terry Bowyer; Brian L. Dick; Bruce K. Johnson; John G. Kie

    2005-01-01

    Density dependence plays a key role in life-history characteristics and population ecology of large, herbivorous mammals. We designed a manipulative experiment to test hypotheses relating effects of density-dependent mechanisms on physical condition and fecundity of North American elk (Cervus elaphus) by creating populations at low and high density...

  5. Hip joint pathology: relationship between patient history, physical tests, and arthroscopy findings in clinical practice

    NARCIS (Netherlands)

    Tijssen, M.; Cingel, R.E. van; Visser, E de; Holmich, P.; Nijhuis-Van der Sanden, M.W.G.

    2017-01-01

    The purpose of this retrospective cohort study was to (a) describe the clinical presentation of femoroacetabular impingement (FAI) and hip labral pathology; (b) describe the accuracy of patient history and physical tests for FAI and labral pathology as confirmed by hip arthroscopy. Patients (18-65

  6. Physical Education Teacher Attitudes toward Fitness Test Scale: Development and Validation

    Science.gov (United States)

    Keating, Xiaofen Deng; Silverman, Stephen

    2004-01-01

    The Physical Education Teacher Attitudes Toward Fitness Test Scale (PETAFTS) produces reliable and valid scores. There were 4 stages and 4 sets of participants in the development of the PETAFTS. First, the domains of attitude were defined and cognitive and affective components were developed, organized, and validated. In the second stage, 134…

  7. Reliability of Health-Related Physical Fitness Tests among Colombian Children and Adolescents: The FUPRECOL Study.

    Directory of Open Access Journals (Sweden)

    Robinson Ramírez-Vélez

    Full Text Available Substantial evidence indicates that youth physical fitness levels are an important marker of lifestyle and cardio-metabolic health profiles and predict future risk of chronic diseases. The reliability physical fitness tests have not been explored in Latino-American youth population. This study's aim was to examine the reliability of health-related physical fitness tests that were used in the Colombian health promotion "Fuprecol study". Participants were 229 Colombian youth (boys n = 124 and girls n = 105 aged 9 to 17.9 years old. Five components of health-related physical fitness were measured: 1 morphological component: height, weight, body mass index (BMI, waist circumference, triceps skinfold, subscapular skinfold, and body fat (% via impedance; 2 musculoskeletal component: handgrip and standing long jump test; 3 motor component: speed/agility test (4x10 m shuttle run; 4 flexibility component (hamstring and lumbar extensibility, sit-and-reach test; 5 cardiorespiratory component: 20-meter shuttle-run test (SRT to estimate maximal oxygen consumption. The tests were performed two times, 1 week apart on the same day of the week, except for the SRT which was performed only once. Intra-observer technical errors of measurement (TEMs and inter-rater (reliability were assessed in the morphological component. Reliability for the Musculoskeletal, motor and cardiorespiratory fitness components was examined using Bland-Altman tests. For the morphological component, TEMs were small and reliability was greater than 95% of all cases. For the musculoskeletal, motor, flexibility and cardiorespiratory components, we found adequate reliability patterns in terms of systematic errors (bias and random error (95% limits of agreement. When the fitness assessments were performed twice, the systematic error was nearly 0 for all tests, except for the sit and reach (mean difference: -1.03% [95% CI = -4.35% to -2.28%]. The results from this study indicate that the

  8. Reliability of Health-Related Physical Fitness Tests among Colombian Children and Adolescents: The FUPRECOL Study.

    Science.gov (United States)

    Ramírez-Vélez, Robinson; Rodrigues-Bezerra, Diogo; Correa-Bautista, Jorge Enrique; Izquierdo, Mikel; Lobelo, Felipe

    2015-01-01

    Substantial evidence indicates that youth physical fitness levels are an important marker of lifestyle and cardio-metabolic health profiles and predict future risk of chronic diseases. The reliability physical fitness tests have not been explored in Latino-American youth population. This study's aim was to examine the reliability of health-related physical fitness tests that were used in the Colombian health promotion "Fuprecol study". Participants were 229 Colombian youth (boys n = 124 and girls n = 105) aged 9 to 17.9 years old. Five components of health-related physical fitness were measured: 1) morphological component: height, weight, body mass index (BMI), waist circumference, triceps skinfold, subscapular skinfold, and body fat (%) via impedance; 2) musculoskeletal component: handgrip and standing long jump test; 3) motor component: speed/agility test (4x10 m shuttle run); 4) flexibility component (hamstring and lumbar extensibility, sit-and-reach test); 5) cardiorespiratory component: 20-meter shuttle-run test (SRT) to estimate maximal oxygen consumption. The tests were performed two times, 1 week apart on the same day of the week, except for the SRT which was performed only once. Intra-observer technical errors of measurement (TEMs) and inter-rater (reliability) were assessed in the morphological component. Reliability for the Musculoskeletal, motor and cardiorespiratory fitness components was examined using Bland-Altman tests. For the morphological component, TEMs were small and reliability was greater than 95% of all cases. For the musculoskeletal, motor, flexibility and cardiorespiratory components, we found adequate reliability patterns in terms of systematic errors (bias) and random error (95% limits of agreement). When the fitness assessments were performed twice, the systematic error was nearly 0 for all tests, except for the sit and reach (mean difference: -1.03% [95% CI = -4.35% to -2.28%]. The results from this study indicate that the "Fuprecol

  9. Reliability of physical functioning tests in patients with low back pain: a systematic review.

    Science.gov (United States)

    Denteneer, Lenie; Van Daele, Ulrike; Truijen, Steven; De Hertogh, Willem; Meirte, Jill; Stassijns, Gaetane

    2018-01-01

    The aim of this study was to provide a comprehensive overview of physical functioning tests in patients with low back pain (LBP) and to investigate their reliability. A systematic computerized search was finalized in four different databases on June 24, 2017: PubMed, Web of Science, Embase, and MEDLINE. Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines were followed during all stages of this review. Clinical studies that investigate the reliability of physical functioning tests in patients with LBP were eligible. The methodological quality of the included studies was assessed with the use of the Consensus-based Standards for the selection of health Measurement Instruments (COSMIN) checklist. To come to final conclusions on the reliability of the identified clinical tests, the current review assessed three factors, namely, outcome assessment, methodological quality, and consistency of description. A total of 20 studies were found eligible and 38 clinical tests were identified. Good overall test-retest reliability was concluded for the extensor endurance test (intraclass correlation coefficient [ICC]=0.93-0.97), the flexor endurance test (ICC=0.90-0.97), the 5-minute walking test (ICC=0.89-0.99), the 50-ft walking test (ICC=0.76-0.96), the shuttle walk test (ICC=0.92-0.99), the sit-to-stand test (ICC=0.91-0.99), and the loaded forward reach test (ICC=0.74-0.98). For inter-rater reliability, only one test, namely, the Biering-Sörensen test (ICC=0.88-0.99), could be concluded to have an overall good inter-rater reliability. None of the identified clinical tests could be concluded to have a good intrarater reliability. Further investigation should focus on a better overall study methodology and the use of identical protocols for the description of clinical tests. The assessment of reliability is only a first step in the recommendation process for the use of clinical tests. In future research, the identified clinical tests in the

  10. AAPM Medical Physics Practice Guideline 8.a.: Linear accelerator performance tests.

    Science.gov (United States)

    Smith, Koren; Balter, Peter; Duhon, John; White, Gerald A; Vassy, David L; Miller, Robin A; Serago, Christopher F; Fairobent, Lynne A

    2017-07-01

    The purpose of this guideline is to provide a list of critical performance tests in order to assist the Qualified Medical Physicist (QMP) in establishing and maintaining a safe and effective quality assurance (QA) program. The performance tests on a linear accelerator (linac) should be selected to fit the clinical patterns of use of the accelerator and care should be given to perform tests which are relevant to detecting errors related to the specific use of the accelerator. A risk assessment was performed on tests from current task group reports on linac QA to highlight those tests that are most effective at maintaining safety and quality for the patient. Recommendations are made on the acquisition of reference or baseline data, the establishment of machine isocenter on a routine basis, basing performance tests on clinical use of the linac, working with vendors to establish QA tests and performing tests after maintenance. The recommended tests proposed in this guideline were chosen based on the results from the risk analysis and the consensus of the guideline's committee. The tests are grouped together by class of test (e.g., dosimetry, mechanical, etc.) and clinical parameter tested. Implementation notes are included for each test so that the QMP can understand the overall goal of each test. This guideline will assist the QMP in developing a comprehensive QA program for linacs in the external beam radiation therapy setting. The committee sought to prioritize tests by their implication on quality and patient safety. The QMP is ultimately responsible for implementing appropriate tests. In the spirit of the report from American Association of Physicists in Medicine Task Group 100, individual institutions are encouraged to analyze the risks involved in their own clinical practice and determine which performance tests are relevant in their own radiotherapy clinics. © 2017 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on

  11. Development and Application of Diagnostic Test to Identify Students' Misconceptions of Quantum Physics

    International Nuclear Information System (INIS)

    Halim, A.A.; Meerah, T.S.; Lilia Halim

    2009-01-01

    A study on students' misconceptions on quantum physics is rarely being done, because the target audience is quite small. It is important to understand quantum physics concepts correctly especially for science students. This study was under taken to help students identify their misconceptions at the early stage. The aim of this study is to develop a diagnostic test which can access the students' misconceptions, and use the findings for the benefits of quantum physics courses. A multiple-choice Quantum Physics Diagnostic Test (QPDT), that involves concepts of light, atomic model, particle-wave dualism, wave function, and potential energy, was administered to 200 university students. The results shows that many students use the classical concepts to describe the quantum phenomenon. For example students describe light only as a wave, an electron only as a particle, and that the atomic structure is parallel to the solar system. To overcome these problems, it is suggested that lecturers spend more time in explaining the basic definitions and using analogies in quantum physics teaching. (author)

  12. PHYSICS

    CERN Multimedia

    J. D'Hondt

    The Electroweak and Top Quark Workshop (16-17th of July) A Workshop on Electroweak and Top Quark Physics, dedicated on early measurements, took place on 16th-17th July. We had more than 40 presentations at the Workshop, which was an important milestone for 2007 physics analyses in the EWK and TOP areas. The Standard Model has been tested empirically by many previous experiments. Observables which are nowadays known with high precision will play a major role for data-based CMS calibrations. A typical example is the use of the Z to monitor electron and muon reconstruction in di-lepton inclusive samples. Another example is the use of the W mass as a constraint for di-jets in the kinematic fitting of top-quark events, providing information on the jet energy scale. The predictions of the Standard Model, for what concerns proton collisions at the LHC, are accurate to a level that the production of W/Z and top-quark events can be used as a powerful tool to commission our experiment. On the other hand the measure...

  13. Development and validation of a musculoskeletal physical examination decision-making test for medical students.

    Science.gov (United States)

    Bishop, Julie Y; Awan, Hisham M; Rowley, David M; Nagel, Rollin W

    2013-01-01

    Despite a renewed emphasis among educators, musculoskeletal education is still lacking in medical school and residency training programs. We created a musculoskeletal multiple-choice physical examination decision-making test to assess competency and physical examination knowledge of our trainees. We developed a 20-question test in musculoskeletal physical examination decision-making test with content that most medical students and orthopedic residents should know. All questions were reviewed by ratings of US orthopedic chairmen. It was administered to postgraduate year 2 to 5 orthopedic residents and 2 groups of medical students: 1 group immediately after their 3-week musculoskeletal course and the other 1 year after the musculoskeletal course completion. We hypothesized that residents would score highest, medical students 1 year post-musculoskeletal training lowest, and students immediately post-musculoskeletal training midrange. We administered an established cognitive knowledge test to compare student knowledge base as we expected the scores to correlate. Academic medical center in the Midwestern United States. Orthopedic residents, chairmen, and medical students. Fifty-four orthopedic chairmen (54 of 110 or 49%) responded to our survey, rating a mean overall question importance of 7.12 (0 = Not Important; 5 = Important; 10 = Very Important). Mean physical examination decision-making scores were 89% for residents, 77% for immediate post-musculoskeletal trained medical students, and 59% 1 year post-musculoskeletal trained medical students (F = 42.07, pphysical examination decision-making test was found to be internally consistent (Kuder-Richardson Formula 20 = 0.69). The musculoskeletal cognitive knowledge test was 78% for immediate post-musculoskeletal trained students and 71% for the 1 year post-musculoskeletal trained students. The student physical examination and cognitive knowledge scores were correlated (r = 0.54, pphysical examination decision-making test

  14. The influence of neutron and γ-radiation of physical fitness of rats in swimming test

    International Nuclear Information System (INIS)

    Shmajda, V.

    1991-01-01

    Three groups of adult male Wistar rats were exposed to neutrons (a single dose of 2 Gy) and γ-radiation (a continuous dose of 6 Gy delivered within 10.5 days) and a combination of both types of radiation. The physical fitness of irradiated and control rats was measured using a forced swimming test in the course and after the termination of the irradiation. A marked decrease in the physical fitness of all irradiated animals was followed by its normalization 3 weeks after irradiation

  15. Benchmark physics tests in the metallic-fuelled assembly ZPPR-15

    International Nuclear Information System (INIS)

    McFarlane, H.F.; Brumbach, S.B.; Carpenter, S.G.; Collins, P.J.

    1987-01-01

    Results of the first benchmark physics tests of a metallic-fueled, demonstration-size, liquid metal reactor are reported. A simple, two-zone, cylindrical conventional assembly was built with three distinctly different compositions to represent the stages of the Integral Fast Reactor fuel cycle. Experiments included criticality, control, power distribution, reaction rate ratios, reactivity coefficients, shielding, kinetics and spectrum. Analysis was done with 3-D nodal diffusion calculations and ENDFIB-V.2 cross sections. Predictions of the ZPPR-15 reactor physics parameters agreed sufficiently well with the measured values to justify confidence in design analyses for metallic-fueled LMRs

  16. The Physical and Cognitive Performance Test for Residents in Assisted Living Facilities.

    Science.gov (United States)

    Bowen, Mary Elizabeth; Rowe, Meredeth; Ersek, Mary; Ibrahim, Said; Shea, Judy A

    2017-07-01

    To develop and evaluate the psychometric properties of a new performance-based instrument (Physical and Cognitive Performance Test for Assisted Living Facilities (PCPT ALF)) designed to assess the physical and cognitive skills associated with performance of activities of daily living (ADLs) and instrumental activities of daily living (IADLs). There were three stages in this study: development of instrument items and validity testing, a feasibility pilot study, and a cross-sectional trial to establish construct and criterion validity and reliability. One 116-bed assisted living facility (ALF). After a pilot test with 10 residents, a cross-sectional trial was conducted with 55 additional residents. The Barthel Index and Functional Independence Measure were used to estimate criterion validity. Construct validity was examined using exploratory factor analyses (EFAs). Disattenuated correlations between the PCPT ALF and other tools were all greater than 0.72, supporting criterion validity. Internal consistency (physical ability, α = 0.95; cognitive support, α = 0.92) and 1-week test-retest reliability (PCPT ALF, P = .93) were high, as was interrater reliability (IRR) (physical ability, 0.99; cognitive support, 1.00). In two EFAs, a one-factor solution accounted for 64.1% of the variance for the physical ability subscale and 63.5% of the variance for the cognitive support subscale. The findings provide early evidence of the PCPT ALF's validity and reliability. If confirmed, this study's findings may be used in future work to assess the success of interventions to prevent or slow decline in the skills associated with ADL and IADL performance in ALFs. © 2017, Copyright the Authors Journal compilation © 2017, The American Geriatrics Society.

  17. Verifying Digital Components of Physical Systems: Experimental Evaluation of Test Quality

    Science.gov (United States)

    Laputenko, A. V.; López, J. E.; Yevtushenko, N. V.

    2018-03-01

    This paper continues the study of high quality test derivation for verifying digital components which are used in various physical systems; those are sensors, data transfer components, etc. We have used logic circuits b01-b010 of the package of ITC'99 benchmarks (Second Release) for experimental evaluation which as stated before, describe digital components of physical systems designed for various applications. Test sequences are derived for detecting the most known faults of the reference logic circuit using three different approaches to test derivation. Three widely used fault types such as stuck-at-faults, bridges, and faults which slightly modify the behavior of one gate are considered as possible faults of the reference behavior. The most interesting test sequences are short test sequences that can provide appropriate guarantees after testing, and thus, we experimentally study various approaches to the derivation of the so-called complete test suites which detect all fault types. In the first series of experiments, we compare two approaches for deriving complete test suites. In the first approach, a shortest test sequence is derived for testing each fault. In the second approach, a test sequence is pseudo-randomly generated by the use of an appropriate software for logic synthesis and verification (ABC system in our study) and thus, can be longer. However, after deleting sequences detecting the same set of faults, a test suite returned by the second approach is shorter. The latter underlines the fact that in many cases it is useless to spend `time and efforts' for deriving a shortest distinguishing sequence; it is better to use the test minimization afterwards. The performed experiments also show that the use of only randomly generated test sequences is not very efficient since such sequences do not detect all the faults of any type. After reaching the fault coverage around 70%, saturation is observed, and the fault coverage cannot be increased anymore. For

  18. Evaluation of spacer grid spring characteristics by means of physical tests and numerical simulation

    Energy Technology Data Exchange (ETDEWEB)

    Schettino, Carlos Frederico Mattos, E-mail: carlosschettino@inb.gov.br [Industrias Nucleares do Brasil (INB), Resende, RJ (Brazil)

    2017-11-01

    Among all fuel assemblies' components, the spacer grids play an important structural role during the energy generation process, mainly due for its primary functional requirement, that is, to provide fuel rod support. The present work aims to evaluate the spring characteristics of a specific spacer grid design used in a PWR fuel assembly type 16 x 16. These spring characteristics comprises the load versus deflection capability and its spring rate, which are very important, and also mandatory, to be correctly established in order to preclude spacer grid spring and fuel rod cladding fretting during operation, as well as prevent an excessive fuel rod buckling. This study includes physical tests and numerical simulation. The tests were performed on an adapted load cell mechanical device, using as a specimen a single strap of the spacer grid. Three numerical models were prepared using the Finite Element Method, with the support of the commercial code ANSYS. One model was built to validate the simulation according to the performed physical test, the others were built inserting a gradient of temperature (Beginning Of Life hot condition) and to evaluate the spacer grid spring characteristics in End Of Life condition. The obtained results from physical test and numerical model have shown a good agreement between them, therefore validating the simulation. The obtained results from numerical models make available information regarding the spacer grid design purpose, such as the behavior of the fuel rod cladding support during operation. Therewith, these evaluations could be useful to improve the spacer grid design. (author)

  19. Physical startup tests for VVER-1200 of Novovoronezh NPP. Advanced technique and some results

    Energy Technology Data Exchange (ETDEWEB)

    Afanasiev, Dmitry A.; Kraynov, Yury A.; Pinegin, Anatoly A.; Tsyganov, Sergey V. [National Research Centre, Moscow (Russian Federation). Kurchatov Inst.

    2017-09-15

    The intention of the startup physics tests was to confirm design characteristics of the core loading and their compliance with safety analysis preconditions. The program of startup tests for the leading unit is usually composed in such a way that is is possible to study as much neutron-physical characteristics as possible in the safest condition of zero power. State-of-the-art safety analysis is including computer codes that use three dimensional neutron kinetics and thermohydraulics models. For the substantiation of such models, for its validation and verification there is a need in reactor experiments that implementing spatially distributed transients. We based on such statements when composing hot zero power physical startup program for the new VVER-1200 unit of Novovoronezh NPP. Several tests unconventional for VVER were developed for that program. It includes measuring the worth for each of control rod groups and measuring of single rod worth from the inserted groups - test that models rod ejection event in some sense.

  20. Tests and standards for express-control of physical fitness and health of middle school age pupils

    Directory of Open Access Journals (Sweden)

    I.R. Bodnar

    2016-08-01

    Full Text Available Introduction: to day, physical fitness testing often causes negative emotions in pupils. It results in sharp loss of pupils’ wish to fulfill physical exercises in free time and worsens their health. Possibility to assess health level is an important motivation factor for pupils’ passing physical tests. Objective testing system will form positive motivation for physical exercises’ practicing and will facilitate increase of pupils’ motor functioning. It will also facilitate optimization of their physical condition, improvement of physical fitness and strengthening of health. Material: we tested physical fitness level and made diagnosis of pupils’ functional state (10-15 years’ age; n=85 with the help of tool methodic. We also used regressive analysis. Results: the system of tests and standards for express-control over physical fitness and health of middle school age pupils has been worked out and substantiated. The system of tests envisages fulfillment of 4 exercises: back pressing ups on bench during 20 seconds; throwing and catching of ball with two hands from wall during 30 seconds; side bending; torso rising from lying position into sitting during 30 seconds. Integral indicator of pupils’ physical fitness and health correlates with functional state of organism’s leading systems. We worked out 5 levels’ scale for express-control over physical fitness and health of middle school age pupils. The system stipulates calculation of integrative indicator with the help of regression equation by results of 4 test exercises and calculation of one index. Conclusions: The system of tests and standards permits the following: to divide pupils into relatively uniform groups even at the beginning of academic year for successful reasonable physical load. The system also permits to determine standard and find what shall be strived for by a pupil in order to achieve optimal physical fitness and somatic state; to motivate relatively weakly

  1. Coupling LMDZ physics in WRF model: Aqua-planet configuration tests

    Science.gov (United States)

    Fita, Lluís; Hourdin, Frédéric; Fairhead, Laurent; Drobinski, Phlippe

    2014-05-01

    Nowadays advances in climatological sciences, pose different challenges for the current global climate models (GCM). One of them is related to the resolution. In some exercises, GCMs are started to be used to that resolutions to which they were not designed for, or in advance of future uses, they have to be tested in order to know their limitations. With the mid term perspective in mind of future uses of the Laboratorie de Météorologie Dynamique Zoom (LMDZ) model, a framework has been designed in order to use the physical parameterizations of the LMDZ model coupled to the dynamical core of Weather Research and Forecasting (WRF) model. This framework will allow the analysis of different aspects such as: resolution thresholds of the LMDZ physics set, skill of LMDZ physics in comparison with cloud resolving simulations, impact of the primitive equations fully compressible dynamics from WRF in global runs among others. The design and implementation of the framework keeps almost all the original capabilities of both models. As a first step, results of an ensemble of 1-year low-resolution global aqua-planet runs performed with the original models using different physical configurations, and the new framework will be presented. These initial results show the correct performance of the new framework, and the sensitivity of the global circulation due to different dynamical atmospheric cores and physical parameterizations.

  2. Development of computerized adaptive testing (CAT) for the EORTC QLQ-C30 physical functioning dimension

    DEFF Research Database (Denmark)

    Petersen, Morten Aa; Groenvold, Mogens; Aaronson, Neil K

    2011-01-01

    Computerized adaptive test (CAT) methods, based on item response theory (IRT), enable a patient-reported outcome instrument to be adapted to the individual patient while maintaining direct comparability of scores. The EORTC Quality of Life Group is developing a CAT version of the widely used EORTC...... QLQ-C30. We present the development and psychometric validation of the item pool for the first of the scales, physical functioning (PF)....

  3. Synthetic aperture radar images of ocean waves, theories of imaging physics and experimental tests

    Science.gov (United States)

    Vesecky, J. F.; Durden, S. L.; Smith, M. P.; Napolitano, D. A.

    1984-01-01

    The physical mechanism for the synthetic Aperture Radar (SAR) imaging of ocean waves is investigated through the use of analytical models. The models are tested by comparison with data sets from the SEASAT mission and airborne SAR's. Dominant ocean wavelengths from SAR estimates are biased towards longer wavelengths. The quasispecular scattering mechanism agrees with experimental data. The Doppler shift for ship wakes is that of the mean sea surface.

  4. Physical examination tests of the shoulder: a systematic review and meta-analysis of diagnostic test performance.

    Science.gov (United States)

    Gismervik, Sigmund Ø; Drogset, Jon O; Granviken, Fredrik; Rø, Magne; Leivseth, Gunnar

    2017-01-25

    Physical examination tests of the shoulder (PETS) are clinical examination maneuvers designed to aid the assessment of shoulder complaints. Despite more than 180 PETS described in the literature, evidence of their validity and usefulness in diagnosing the shoulder is questioned. This meta-analysis aims to use diagnostic odds ratio (DOR) to evaluate how much PETS shift overall probability and to rank the test performance of single PETS in order to aid the clinician's choice of which tests to use. This study adheres to the principles outlined in the Cochrane guidelines and the PRISMA statement. A fixed effect model was used to assess the overall diagnostic validity of PETS by pooling DOR for different PETS with similar biomechanical rationale when possible. Single PETS were assessed and ranked by DOR. Clinical performance was assessed by sensitivity, specificity, accuracy and likelihood ratio. Six thousand nine-hundred abstracts and 202 full-text articles were assessed for eligibility; 20 articles were eligible and data from 11 articles could be included in the meta-analysis. All PETS for SLAP (superior labral anterior posterior) lesions pooled gave a DOR of 1.38 [1.13, 1.69]. The Supraspinatus test for any full thickness rotator cuff tear obtained the highest DOR of 9.24 (sensitivity was 0.74, specificity 0.77). Compression-Rotation test obtained the highest DOR (6.36) among single PETS for SLAP lesions (sensitivity 0.43, specificity 0.89) and Hawkins test obtained the highest DOR (2.86) for impingement syndrome (sensitivity 0.58, specificity 0.67). No single PETS showed superior clinical test performance. The clinical performance of single PETS is limited. However, when the different PETS for SLAP lesions were pooled, we found a statistical significant change in post-test probability indicating an overall statistical validity. We suggest that clinicians choose their PETS among those with the highest pooled DOR and to assess validity to their own specific clinical

  5. A standardization of the physical tests for external irradiation measuring detectors

    International Nuclear Information System (INIS)

    1977-05-01

    This report is the result of a standardization work, realized within the Radioprotection Services of the A.E.C., of the physical tests for dectors measuring external irradiations. Among the various tests mentionned, calibration and the establishment of the relative spectral response are treated in details. As far as calibration is concerned, the standardization refers to: the reference detector, the reference radiation source, the installation and calibration procedure. As for the relative spectral response the standardization refers to: the reference detector, the radiation sources to be used. High flux detectors and those for pulse electromagnetic radiations are also dealt with [fr

  6. An Empirical Analysis of the Physical Aptitude Exam as a Predictor of Performance on the Physical Readiness Test

    National Research Council Canada - National Science Library

    Patrick, Robert

    2000-01-01

    The Physical Aptitude Exam, administered to candidates in the Naval Academy admissions process to measure physical aptitude, consists of pullups for men or the flexed arm hang for women, a 300-yard...

  7. Validation of PROMIS ® Physical Function computerized adaptive tests for orthopaedic foot and ankle outcome research.

    Science.gov (United States)

    Hung, Man; Baumhauer, Judith F; Latt, L Daniel; Saltzman, Charles L; SooHoo, Nelson F; Hunt, Kenneth J

    2013-11-01

    In 2012, the American Orthopaedic Foot & Ankle Society(®) established a national network for collecting and sharing data on treatment outcomes and improving patient care. One of the network's initiatives is to explore the use of computerized adaptive tests (CATs) for patient-level outcome reporting. We determined whether the CAT from the NIH Patient Reported Outcome Measurement Information System(®) (PROMIS(®)) Physical Function (PF) item bank provides efficient, reliable, valid, precise, and adequately covered point estimates of patients' physical function. After informed consent, 288 patients with a mean age of 51 years (range, 18-81 years) undergoing surgery for common foot and ankle problems completed a web-based questionnaire. Efficiency was determined by time for test administration. Reliability was assessed with person and item reliability estimates. Validity evaluation included content validity from expert review and construct validity measured against the PROMIS(®) Pain CAT and patient responses based on tradeoff perceptions. Precision was assessed by standard error of measurement (SEM) across patients' physical function levels. Instrument coverage was based on a person-item map. Average time of test administration was 47 seconds. Reliability was 0.96 for person and 0.99 for item. Construct validity against the Pain CAT had an r value of -0.657 (p foot and ankle surgery. Further validation of the PROMIS(®) item banks may ultimately provide a valid and reliable tool for measuring patient-reported outcomes after injuries and treatment.

  8. OVERALL ASSESSMENT OF PHYSICAL FITNESS IN CHILDREN WITH MENTAL RETARDATION IN THE TEST "EUROFIT SPECIAL"

    Directory of Open Access Journals (Sweden)

    Bartosz Bolach

    2013-12-01

    Full Text Available Purpose. The aim of this research was to assess general extensive physical efficiency in children suffering from moderate mental disability with the use of “Eurofit Special” tests, and to compare general extensive physical efficiency and its components in the aspect of sexual dimorphism (Rohrer index. The research presents the problem of mental imparity (epidemiology, classification and the issue of extensive physical efficiency. Material, methods. The research included 52 pupils (25 girls and 27 boys, aged 10-14 from Wroclaw Centre of Education and Rehabilitation of the Disabled. Results. The results of the tests proved the existence of differences in somatic body constitution of boys and girls. However, statistically significant differences between the “Eurofit Special” test results were not observed with reference to children’s sex or the correlation between somatic constitution and achieved results. Conclusions. Somatic constitution of boys and girls aged between 10 and 14 was clearly different, and most visible in the average values of Rohrer’s index, with these values being higher among girls.

  9. Research, development, and preliminary testing of interactive engagements for teaching quantum mechanics to undergraduate physics majors

    Science.gov (United States)

    Axmann, Waldemar Jay

    The Advanced Visual Quantum Mechanics project was conceived to provide computer-centered, activities-based instructional materials to upper-level undergraduate physics majors. This study implements one curriculum development cycle of research, development, and classroom testing for a single unit, The Shape and Behavior of the Wave Function, of these materials. It is designed to be a proof of concept pilot study for the project. The cycle began with an extensive review of existing research drawing on results from the general fields of cognitive science and educational research as well as more specific research regarding the use of computers in instruction and the teaching and learning of quantum mechanics. It continued with the development of written materials, a computer program, and assessment instruments all extensively based on this research. It concluded with a field test garnering an outcome of positive student and instructor attitudes and perceptions of learning gains as well as actual gains similar or superior to traditional instruction---even in the face of usage that diverged widely from that intended. Based on these results, we recommend the continuation of the Advanced Visual Quantum Mechanics project. This work would include further testing and revision of these materials, similar development and classroom testing of further materials, and new research within the context of that testing. Consideration should also be given to similar projects that address other physics subject areas.

  10. Evaluation of a draft standard on performance specifications for health physics instrumentation: results for environmental tests

    International Nuclear Information System (INIS)

    Kenoyer, J.L.; Swinth, K.L.; Mashburn, K.R.; Selby, J.M.

    1984-06-01

    Draft ANSI Standard N42.17 on performance specifications for health physics instrumentation is currently being evaluated by the Pacific Northwest Laboratory. Evaluation is performed by testing a cross-section of currently available instruments with testing procedures based on specifications of the standard and then determining the degree of conformance to the various elements of the proposed standard. Data will be presented on the performance of a cross-section of beta-gamma survey instruments under various environmental tests. Test results that will be presented include temperature effects, humidity effects, radio frequency (r.f.) susceptibility, ambient pressure effects, vibration effects, and shock effects. Tests performed to date show that most instruments will meet the temperature, humidity, and ambient pressure tests. A large variability is noted among instruments from the same or different vendors. Preliminary r.f. susceptibility tests have shown large artificial responses at some frequencies for specific instruments. The presentation will also include a discussion of procedures used in the testing and weaknesses identified in the proposed standard

  11. A Physical Protection Systems Test Bed for International Counter-Trafficking System Development

    International Nuclear Information System (INIS)

    Stinson, Brad J.; Kuhn, Michael J.; Donaldson, Terrence L.; Richardson, Dave; Rowe, Nathan C.; Younkin, James R.; Pickett, Chris A.

    2011-01-01

    Physical protection systems have a widespread impact on the nuclear industry in areas such as nuclear safeguards, arms control, and trafficking of illicit goods (e.g., nuclear materials) across international borders around the world. Many challenges must be overcome in design and deployment of foreign border security systems such as lack of infrastructure, extreme environmental conditions, limited knowledge of terrain, insider threats, and occasional cultural resistance. Successful security systems, whether it be a system designed to secure a single facility or a whole border security system, rely on the entire integrated system composed of multiple subsystems. This test bed is composed of many unique sensors and subsystems, including wireless unattended ground sensors, a buried fiber-optic acoustic sensor, a lossy coaxial distributed sensor, wireless links, pan-tilt-zoom cameras, mobile power generation systems, unmanned aerial vehicles, and fiber-optic-fence intrusion detection systems. A Common Operating Picture software architecture is utilized to integrate a number of these subsystems. We are currently performance testing each system for border security and perimeter security applications by examining metrics such as probability of sense and a qualitative understanding of the sensors vulnerability of defeat. The testing process includes different soil conditions for buried sensors (e.g., dry, wet, and frozen) and an array of different tests including walking, running, stealth detection, and vehicle detection. Also, long term sustainability of systems is tested including performance differences due to seasonal variations (e.g. summer versus winter, while raining, in foggy conditions). The capabilities of the test bed are discussed. Performance testing results, both at the individual component level and integrated into a larger system for a specific deployment (in situ), help illustrate the usefulness and need for integrated testing facilities to carry out this

  12. How well do physical activity questions perform? A European cognitive testing study.

    Science.gov (United States)

    Finger, J D; Gisle, L; Mimilidis, H; Santos-Hoevener, C; Kruusmaa, E K; Matsi, A; Oja, L; Balarajan, M; Gray, M; Kratz, A L; Lange, C

    2015-01-01

    Only few studies have focused on the cognitive processes of the respondents that are involved when answering physical activity questionnaires (PAQs). This study aimed at examining whether two PAQs work as intended with different segments of the survey population in different cultural settings in Europe. The International Physical Activity Questionnaire - Short Form (IPAQ-SF) and the US National Health Interview Survey - Adult Core Physical Activity Questionnaire (NHIS-PAQ) were tested in Belgium, Estonia, Germany and the UK using a standardized cognitive interviewing procedure. IPAQ-SF measures total vigorous physical activity (PA), moderate PA, walking and sitting. NHIS-PAQ measures leisure-time vigorous PA, light and moderate PA and muscle-strengthening PA. In total 62 persons completed cognitive interviews, at least 15 interviews were conducted in each country. Both PAQs performed as intended with young and high-skilled persons and those having a regular exercise schedule. For the others, however, the testing revealed that problems occurred with both PAQs relating to understanding the concepts of '(light and) moderate' and 'vigorous' PA, classifying activities into the provided answer options of different PA intensities, recalling instances of 'normal' activities such as walking and sitting, and calculating the total duration of more than one activity or instance of an activity. The revealed problems with the questionnaires were quite similar in different countries; profound cultural differences were not observed. Both questionnaires were difficult to answer for many respondents and rather user-unfriendly. They are designed to measure an exactness of PA quantity (frequency and duration) and intensity which would be desirable to obtain from a scientific point of view; however, respondents can hardly provide this information for cognitive reasons. Studies investigating the respondents' perspective are useful for improving physical activity information based on

  13. The physical performance test predicts aerobic capacity sufficient for independence in early-stage Alzheimer disease.

    Science.gov (United States)

    Vidoni, Eric D; Billinger, Sandra A; Lee, Charesa; Hamilton, Jenna; Burns, Jeffrey M

    2012-01-01

    Early identification of physical impairment related to Alzheimer disease (AD) is increasingly identified as an important aspect of diagnosis and care. Clinically accessible tools for evaluating physical capacity and impairment in AD have been developed but require further characterization for their effective use. To assess the utility of the Physical Performance Test (PPT) for identifying functionally limiting aerobic capacity in older adults with AD and without dementia. Secondary analysis of a dataset of community dwelling older adults, 70 without dementia and 60 with early-stage AD. Participants were administered the PPT and performed a graded maximal exercise test. The clinical utility of 2 versions of the PPT was described by determining sensitivity and specificity to functionally limiting aerobic capacity. The 9-item PPT is predictive of diminished aerobic capacity in older adults with AD. A score of 28 or less indicates likelihood of functionally limiting aerobic capacity that would limit independent function with 67% sensitivity and 67% specificity. The 4-item mini-PPT demonstrates improved capability for identifying impaired functional aerobic capacity with 85% sensitivity and 62% specificity. The PPT was not useful for identifying impaired functional aerobic capacity in older adults without dementia. The PPT, which incorporates basic and instrumental activities of daily living as test items, and the mini-PPT which focuses on basic activities of daily living and simple physical functions, are both clinically useful tool for the evaluation for individuals in the earliest stages of AD and both provide important information about functional performance. The mini-PPT additionally inform the clinician as to whether or not individual with early-stage AD is likely to have insufficient aerobic capacity to perform instrumental daily functions.

  14. OARSI recommended performance-based tests to assess physical function in people diagnosed with hip or knee osteoarthritis

    DEFF Research Database (Denmark)

    Dobson, F; Hinman, R S; Roos, Ewa M.

    2013-01-01

    To recommend a consensus-derived set of performance-based tests of physical function for use in people diagnosed with hip or knee osteoarthritis (OA) or following joint replacement.......To recommend a consensus-derived set of performance-based tests of physical function for use in people diagnosed with hip or knee osteoarthritis (OA) or following joint replacement....

  15. Space Launch System Base Heating Test: Environments and Base Flow Physics

    Science.gov (United States)

    Mehta, Manish; Knox, Kyle S.; Seaford, C. Mark; Dufrene, Aaron T.

    2016-01-01

    The NASA Space Launch System (SLS) vehicle is composed of four RS-25 liquid oxygen- hydrogen rocket engines in the core-stage and two 5-segment solid rocket boosters and as a result six hot supersonic plumes interact within the aft section of the vehicle during ight. Due to the complex nature of rocket plume-induced ows within the launch vehicle base during ascent and a new vehicle con guration, sub-scale wind tunnel testing is required to reduce SLS base convective environment uncertainty and design risk levels. This hot- re test program was conducted at the CUBRC Large Energy National Shock (LENS) II short-duration test facility to simulate ight from altitudes of 50 kft to 210 kft. The test program is a challenging and innovative e ort that has not been attempted in 40+ years for a NASA vehicle. This presentation discusses the various trends of base convective heat ux and pressure as a function of altitude at various locations within the core-stage and booster base regions of the two-percent SLS wind tunnel model. In-depth understanding of the base ow physics is presented using the test data, infrared high-speed imaging and theory. The normalized test design environments are compared to various NASA semi- empirical numerical models to determine exceedance and conservatism of the ight scaled test-derived base design environments. Brief discussion of thermal impact to the launch vehicle base components is also presented.

  16. The physical interpretation of the parameters measured during the tensile testing of materials at elevated temperatures

    International Nuclear Information System (INIS)

    Burton, B.

    1984-01-01

    Hot tensile (or compression) testing, where the stress developed in a material is measured under an imposed strain rate, is often used as an alternative to conventional creep testing. The advantages of the hot tensile test are that its duration can be more closely controlled by the experimenter and also that the technique is more convenient, since high precision testing machines are available. The main disadvantage is that the interpretation of results is more complex. The present paper relates the parameters which are measured in hot tensile tests, to physical processes which occur in materials deforming by a variety of mechanisms. For cases where no significant structural changes occur, as in viscous or superplastic flow, analytical expressions are derived which relate the stresses measured in these tests to material constants. When deformation is controlled by recovery processes, account has to be taken of the structural changes which occur concurrently. A wide variety of behaviour may then be exhibited which depends on the initial dislocation density, the presence of second-phase particles and the relative values of the recovery rate parameters and the velocity imposed by the testing machine. Numerical examples are provided for simple recovery models. (author)

  17. Statistical homogeneity tests applied to large data sets from high energy physics experiments

    Science.gov (United States)

    Trusina, J.; Franc, J.; Kůs, V.

    2017-12-01

    Homogeneity tests are used in high energy physics for the verification of simulated Monte Carlo samples, it means if they have the same distribution as a measured data from particle detector. Kolmogorov-Smirnov, χ 2, and Anderson-Darling tests are the most used techniques to assess the samples’ homogeneity. Since MC generators produce plenty of entries from different models, each entry has to be re-weighted to obtain the same sample size as the measured data has. One way of the homogeneity testing is through the binning. If we do not want to lose any information, we can apply generalized tests based on weighted empirical distribution functions. In this paper, we propose such generalized weighted homogeneity tests and introduce some of their asymptotic properties. We present the results based on numerical analysis which focuses on estimations of the type-I error and power of the test. Finally, we present application of our homogeneity tests to data from the experiment DØ in Fermilab.

  18. Assessment of physical performance using the 6-minute walk test in children receiving treatment for cancer.

    Science.gov (United States)

    Hooke, Mary C; Garwick, Ann W; Neglia, Joseph P

    2013-01-01

    The study of physical performance in children with cancer is emerging as an important variable in symptom research. Studies have shown that children with cancer experience deficits in physical performance during treatment that may be present years after therapy. The aim of this study was to determine if distance on the 6-minute walk test (6MWT) changed in children during the first 3 cycles of cancer treatment and to compare the distances walked with healthy norms. This is a secondary data analysis of 19 boys and 10 girls, aged 6 to 17 years, who were newly diagnosed with cancer and were part of a larger study that measured changes in fatigue and physical performance during the first 3 cycles of chemotherapy. Participants performed the 6MWT between days 15 and 29 of the first and third cycles of chemotherapy. Pediatric cancer patients did not have a significant change in the distance walked at cycle 3 of chemotherapy compared with cycle 1. When compared with 2 different normative data sets for healthy children, most children with cancer performed significantly below their peers. Children had poor strength and endurance after 3 cycles of chemotherapy even when their disease was responding to treatment. Interventions are needed to promote rehabilitation and maintenance of physical performance, as both are important to quality of life and ongoing child development. Children receiving cancer treatment who are ambulatory may appear to be functioning normally but are in fact severely deconditioned compared with their healthy peers.

  19. The prognostic value of electrodiagnostic testing in patients with sciatica receiving physical therapy.

    Science.gov (United States)

    Savage, Nathan J; Fritz, Julie M; Kircher, John C; Thackeray, Anne

    2015-03-01

    To investigate the prognostic value of electrodiagnostic testing in patients with sciatica receiving physical therapy. Electrodiagnostic testing was performed on 38 patients with sciatica participating in a randomized trial comparing different physical therapy interventions. Patients were grouped and analyzed according to the presence or absence of radiculopathy based on electrodiagnostic testing. Longitudinal data analysis was conducted using multilevel growth modeling with ten waves of data collected from baseline through the treatment and post-treatment periods up to 6 months. The primary outcome measure was changes in low back pain-related disability assessed using the Roland and Morris disability questionnaire (RMDQ). Patients with radiculopathy (n = 19) had statistically significant and clinically meaningful improvements in RMDQ scores at every post-treatment follow-up occasion regardless of treatment received. The final multilevel growth model revealed improvements in RMDQ scores in patients with radiculopathy at the 6-week (-8.1, 95 % CI -12.6 to -2.6; P = 0.006) and 6-month (-4.1, 95 % CI -7.4 to -0.7; P = 0.020) follow-up occasions compared to patients without radiculopathy. Treatment group was not a significant predictive factor at any follow-up occasion. An interaction between electrodiagnostic status and time revealed faster weekly improvements in RMDQ scores in patients with radiculopathy at the 6-week (-0.72, 95 % CI -1.4 to -0.04; P = 0.040) through the 16-week (-0.30, 95 % CI, -0.57 to -0.04; P = 0.028) follow-up occasions compared to patients without radiculopathy. The presence of lumbosacral radiculopathy identified with electrodiagnostic testing is a favorable prognostic factor for recovery in low back pain-related disability regardless of physical therapy treatment received.

  20. A systematic review of the diagnostic performance of orthopedic physical examination tests of the hip

    Science.gov (United States)

    2013-01-01

    Background Previous reviews of the diagnostic performances of physical tests of the hip in orthopedics have drawn limited conclusions because of the low to moderate quality of primary studies published in the literature. This systematic review aims to build on these reviews by assessing a broad range of hip pathologies, and employing a more selective approach to the inclusion of studies in order to accurately gauge diagnostic performance for the purposes of making recommendations for clinical practice and future research. It specifically identifies tests which demonstrate strong and moderate diagnostic performance. Methods A systematic search of Medline, Embase, Embase Classic and CINAHL was conducted to identify studies of hip tests. Our selection criteria included an analysis of internal and external validity. We reported diagnostic performance in terms of sensitivity, specificity, predictive values and likelihood ratios. Likelihood ratios were used to identify tests with strong and moderate diagnostic utility. Results Only a small proportion of tests reported in the literature have been assessed in methodologically valid primary studies. 16 studies were included in our review, producing 56 independent test-pathology combinations. Two tests demonstrated strong clinical utility, the patellar-pubic percussion test for excluding radiologically occult hip fractures (negative LR 0.05, 95% Confidence Interval [CI] 0.03-0.08) and the hip abduction sign for diagnosing sarcoglycanopathies in patients with known muscular dystrophies (positive LR 34.29, 95% CI 10.97-122.30). Fifteen tests demonstrated moderate diagnostic utility for diagnosing and/or excluding hip fractures, symptomatic osteoarthritis and loosening of components post-total hip arthroplasty. Conclusions We have identified a number of tests demonstrating strong and moderate diagnostic performance. These findings must be viewed with caution as there are concerns over the methodological quality of the primary

  1. PHYSICS

    CERN Multimedia

    D. Acosta

    2010-01-01

    A remarkable amount of progress has been made in Physics since the last CMS Week in June given the exponential growth in the delivered LHC luminosity. The first major milestone was the delivery of a variety of results to the ICHEP international conference held in Paris this July. For this conference, CMS prepared 15 Physics Analysis Summaries on physics objects and 22 Summaries on new and interesting physics measurements that exploited the luminosity recorded by the CMS detector. The challenge was incorporating the largest batch of luminosity that was delivered only days before the conference (300 nb-1 total). The physics covered from this initial running period spanned hadron production measurements, jet production and properties, electroweak vector boson production, and even glimpses of the top quark. Since then, the accumulated integrated luminosity has increased by a factor of more than 100, and all groups have been working tremendously hard on analysing this dataset. The September Physics Week was held ...

  2. Qinshan CANDU project simulation of reactor physics tests at low power

    International Nuclear Information System (INIS)

    Banica, C.; Tin, E.S.Y.; Mingjun, C.; Shad, M.A.; Schwanke, P.; Jenkins, D.A.

    2003-01-01

    Two new CANDU 6 reactors located in Qinshan, China, have recently been added to AECL's CANDU family. As a result of a very successful project, the first unit entered commercial operation in December 2002. As with all CANDU reactors, a series of physics tests were performed after first criticality was achieved. These tests were presimulated with the RFSP code and the results were compared to the measured data. The Phase-B commissioning is described in this paper, with an emphasis on lessons learned and quality of the fit of the measurements to the presimulations. The measured device reactivity worths in terms of changes in zone controller fills compared well with the results of the presimulations. Good agreement was also obtained between precalculated fluxes at detector locations and measured detector readings for all rundown tests. These results give confidence that the shutdown systems and reactor regulating system are functioning as expected and also provide validation of the Qinshan RFSP model. (author)

  3. PHYSICS

    CERN Multimedia

    P. Sphicas

    The CPT project came to an end in December 2006 and its original scope is now shared among three new areas, namely Computing, Offline and Physics. In the physics area the basic change with respect to the previous system (where the PRS groups were charged with detector and physics object reconstruction and physics analysis) was the split of the detector PRS groups (the old ECAL-egamma, HCAL-jetMET, Tracker-btau and Muons) into two groups each: a Detector Performance Group (DPG) and a Physics Object Group. The DPGs are now led by the Commissioning and Run Coordinator deputy (Darin Acosta) and will appear in the correspond¬ing column in CMS bulletins. On the physics side, the physics object groups are charged with the reconstruction of physics objects, the tuning of the simulation (in collaboration with the DPGs) to reproduce the data, the provision of code for the High-Level Trigger, the optimization of the algorithms involved for the different physics analyses (in collaboration with the analysis gr...

  4. PHYSICS

    CERN Multimedia

    J. Incandela

    There have been numerous developments in the physics area since the September CMS week. The biggest single event was the Physics/Trigger week in the end of Octo¬ber, whereas in terms of ongoing activities the “2007 analyses” went into high gear. This was in parallel with participation in CSA07 by the physics groups. On the or¬ganizational side, the new conveners of the physics groups have been selected, and a new database for man¬aging physics analyses has been deployed. Physics/Trigger week The second Physics-Trigger week of 2007 took place during the week of October 22-26. The first half of the week was dedicated to working group meetings. The ple¬nary Joint Physics-Trigger meeting took place on Wednesday afternoon and focused on the activities of the new Trigger Studies Group (TSG) and trigger monitoring. Both the Physics and Trigger organizations are now focused on readiness for early data-taking. Thus, early trigger tables and preparations for calibr...

  5. International consensus on the most useful physical examination tests used by physiotherapists for patients with headache: A Delphi study.

    Science.gov (United States)

    Luedtke, K; Boissonnault, W; Caspersen, N; Castien, R; Chaibi, A; Falla, D; Fernández-de-Las-Peñas, C; Hall, T; Hirsvang, J R; Horre, T; Hurley, D; Jull, G; Krøll, L S; Madsen, B K; Mallwitz, J; Miller, C; Schäfer, B; Schöttker-Königer, T; Starke, W; von Piekartz, H; Watson, D; Westerhuis, P; May, A

    2016-06-01

    A wide range of physical tests have been published for use in the assessment of musculoskeletal dysfunction in patients with headache. Which tests are used depends on a physiotherapist's clinical and scientific background as there is little guidance on the most clinically useful tests. To identify which physical examination tests international experts in physiotherapy consider the most clinically useful for the assessment of patients with headache. Delphi survey with pre-specified procedures based on a systematic search of the literature for physical examination tests proposed for the assessment of musculoskeletal dysfunction in patients with headache. Seventeen experts completed all three rounds of the survey. Fifteen tests were included in round one with eleven additional tests suggested by the experts. Finally eleven physical examination tests were considered clinically useful: manual joint palpation, the cranio-cervical flexion test, the cervical flexion-rotation test, active range of cervical movement, head forward position, trigger point palpation, muscle tests of the shoulder girdle, passive physiological intervertebral movements, reproduction and resolution of headache symptoms, screening of the thoracic spine, and combined movement tests. Eleven tests are suggested as a minimum standard for the physical examination of musculoskeletal dysfunctions in patients with headache. Copyright © 2016 Elsevier Ltd. All rights reserved.

  6. The study features of test procedures of students' knowledge on the physical training lessons

    Directory of Open Access Journals (Sweden)

    Korobejnik V.A.

    2013-09-01

    Full Text Available The aim is to determine the significance of the relationship and special professional skills necessary to detect and correct errors and evaluating students in physical education classes. The surveys were a group of qualified teachers (n = 31 with different pedagogical experience. Each teacher was asked to arrange the professional quality of the places from 1 to 10. It was found that all investigated have a certain quality and a high level of relationship, but they are manifested in different periods of teaching. It is shown that the process of organizing and carrying out checks of expertise includes logically related mental operations which are the basis of test procedures of students' knowledge on the physical training lessons. Found that the most weighty qualities were related to skills: a rating, comment exposed estimate visually identify the error and determine its significance.

  7. Physical capacity and the motor tests relative for the health promotion in children and adolescents

    Directory of Open Access Journals (Sweden)

    Roberto Jerônimo dos Santos Silva

    2003-06-01

    Full Text Available This article discusses physical capacity and health-promotion-oriented motor tests in children and adolescents, in order to provide a foundation for future studies that intend to debate this topic. The idea of evaluating physical activity levels in a population is aimed to determine the level of physical fi tness, and to verify that this is in line with criteria for good health. From a functional point of view, .good health is defined by the following components: body composition (not considered in this article, strength, muscular endurance capacity and fl exibility. These components are measured by test batteries that are intended to measure the health of individuals and/or populations. The starting point for this debate is the published reference literature that classifi es motor tests as either norm-referenced or criterion-referenced standards. RESUMO Este artigo discute as capacidades físicas e os testes motores voltados à promoção da saúde em crianças e adolescentes, de forma a subsidiar trabalhos em que este tema esteja em voga. A idéia de avaliar a atividade física em uma população é baseada no desejo de determinar o estado de atividade atual da mesma, e verifi car se ela está de acordo com os critérios apropriados para uma boa saúde. Do ponto de vista morfofuncional, uma boa “saúde relatada” é defi nida a partir dos componentes: composição corporal (não abordado neste trabalho, força e resistência muscular e fl exibilidade, componentes estes que são verifi cados a partir da aplicação de testes ou baterias de testes que pretendem medir e verifi car os níveis individuais e/ou populacionais de saúde relatada. A literatura de referência, que classifi ca os testes motores como referenciados a partir de normas ou critérios é o ponto de partida para esse debate.

  8. Primacy effects induced by temporal or physical context shifts are attenuated by a preshift test trial

    Science.gov (United States)

    Wheeler, Daniel S.; Miller, Ralph R.

    2007-01-01

    When subjects are sequentially trained with a cue (A) paired separately with two outcomes (B and C) in different phases (i.e., A–B pairings followed by A–C pairings) testing in the training context after short retention intervals often reveals recency effects (i.e., stronger influence by A–C). In contrast, testing after long retention intervals or testing in a context different from that of training sometimes reveals primacy effects (A–B). Three experiments were conducted using rats in a Pavlovian conditioned bar-press suppression preparation to ascertain whether a nonreinforced test trial in the training context soon after training can attenuate this shift to primacy. Experiment 1 demonstrated that exposure to A shortly after both phases of training, but prior to a long retention interval, can attenuate shifts from recency to primacy otherwise observed with a long retention interval. Experiment 2 showed that exposure to A in the training context can also eliminate the shift from recency to primacy otherwise produced by shifting the physical context between training and test. Experiment 3 discredited a potential account of the results of Experiments 1 and 2. The effects observed in Experiment 1 and 2 are interpreted as early testing in the training context serving to initiate rehearsal of the A–C association due to the temporal proximity of A–C training. PMID:17389907

  9. Commissioning experience and beam physics measurements at the SwissFEL Injector Test Facility

    Directory of Open Access Journals (Sweden)

    T. Schietinger

    2016-10-01

    Full Text Available The SwissFEL Injector Test Facility operated at the Paul Scherrer Institute between 2010 and 2014, serving as a pilot plant and test bed for the development and realization of SwissFEL, the x-ray Free-Electron Laser facility under construction at the same institute. The test facility consisted of a laser-driven rf electron gun followed by an S-band booster linac, a magnetic bunch compression chicane and a diagnostic section including a transverse deflecting rf cavity. It delivered electron bunches of up to 200 pC charge and up to 250 MeV beam energy at a repetition rate of 10 Hz. The measurements performed at the test facility not only demonstrated the beam parameters required to drive the first stage of an FEL facility, but also led to significant advances in instrumentation technologies, beam characterization methods and the generation, transport and compression of ultralow-emittance beams. We give a comprehensive overview of the commissioning experience of the principal subsystems and the beam physics measurements performed during the operation of the test facility, including the results of the test of an in-vacuum undulator prototype generating radiation in the vacuum ultraviolet and optical range.

  10. Plant Outage Time Savings Provided by Subcritical Physics Testing at Vogtle Unit 2

    International Nuclear Information System (INIS)

    Cupp, Philip; Heibel, M.D.

    2006-01-01

    The most recent core reload design verification physics testing done at Southern Nuclear Company's (SNC) Vogtle Unit 2, performed prior to initial power operations in operating cycle 12, was successfully completed while the reactor was at least 1% ΔK/K subcritical. The testing program used was the first application of the Subcritical Physics Testing (SPT) program developed by the Westinghouse Electric Company LLC. The SPT program centers on the application of the Westinghouse Subcritical Rod Worth Measurement (SRWM) methodology that was developed in cooperation with the Vogtle Reactor Engineering staff. The SRWM methodology received U. S. Nuclear Regulatory Commission (NRC) approval in August of 2005. The first application of the SPT program occurred at Vogtle Unit 2 in October of 2005. The results of the core design verification measurements obtained during the SPT program demonstrated excellent agreement with prediction, demonstrating that the predicted core characteristics were in excellent agreement with the actual operating characteristics of the core. This paper presents an overview of the SPT Program used at Vogtle Unit 2 during operating cycle 12, and a discussion of the critical path outage time savings the SPT program is capable of providing. (authors)

  11. Detecting forest structure and biomass with C-band multipolarization radar - Physical model and field tests

    Science.gov (United States)

    Westman, Walter E.; Paris, Jack F.

    1987-01-01

    The ability of C-band radar (4.75 GHz) to discriminate features of forest structure, including biomass, is tested using a truck-mounted scatterometer for field tests on a 1.5-3.0 m pygmy forest of cypress (Cupressus pygmaea) and pine (Pinus contorta ssp, Bolanderi) near Mendocino, CA. In all, 31 structural variables of the forest are quantified at seven sites. Also measured was the backscatter from a life-sized physical model of the pygmy forest, composed of nine wooden trees with 'leafy branches' of sponge-wrapped dowels. This model enabled independent testing of the effects of stem, branch, and leafy branch biomass, branch angle, and moisture content on radar backscatter. Field results suggested that surface area of leaves played a greater role in leaf scattering properties than leaf biomass per se. Tree leaf area index was strongly correlated with vertically polarized power backscatter (r = 0.94; P less than 0.01). Field results suggested that the scattering role of leaf water is enhanced as leaf surface area per unit leaf mass increases; i.e., as the moist scattering surfaces become more dispersed. Fog condensate caused a measurable rise in forest backscatter, both from surface and internal rises in water content. Tree branch mass per unit area was highly correlated with cross-polarized backscatter in the field (r = 0.93; P less than 0.01), a result also seen in the physical model.

  12. PHYSICS

    CERN Document Server

    Submitted by

    Physics Week: plenary meeting on physics groups plans for startup (14–15 May 2008) The Physics Objects (POG) and Physics Analysis (PAG) Groups presented their latest developments at the plenary meeting during the Physics Week. In the presentations particular attention was given to startup plans and readiness for data-taking. Many results based on the recent cosmic run were shown. A special Workshop on SUSY, described in a separate section, took place the day before the plenary. At the meeting, we had also two special DPG presentations on “Tracker and Muon alignment with CRAFT” (Ernesto Migliore) and “Calorimeter studies with CRAFT” (Chiara Rovelli). We had also a report from Offline (Andrea Rizzi) and Computing (Markus Klute) on the San Diego Workshop, described elsewhere in this bulletin. Tracking group (Boris Mangano). The level of sophistication of the tracking software increased significantly over the last few months: V0 (K0 and Λ) reconstr...

  13. Correlation between the results of three physical fitness tests (endurance, strength, speed) and the output measured during a bicycle ergometer test in a cohort of military servicemen.

    Science.gov (United States)

    Sammito, Stefan; Gundlach, Nils; Böckelmann, Irina

    2016-01-01

    Physical fitness tests are widely used to assess endurance, sprint ability, coordination and/or strength. The objective of the present study was to analyze the degree to which the results of the Bundeswehr Basis Fitness Test (BFT)--a physical fitness test comprising a sprint test (11 × 10-m shuttle test), a flexed-arm hang test and a 1000-m run--are consistent with the output measured during a bicycle ergometer test. The number of false-positive and false-negative results with regard to the assessment of physical fitness were also examined. As part of a retrospective study, health assessments from 323 reenlistment examinations were evaluated regarding the output measured during a bicycle ergometer test and compared with the BFT results of the candidates. Overall, a good correlation was shown between the bicycle ergometer test results and the results achieved in the BFT disciplines. All three disciplines of the BFT showed a highly significant correlation with the relative output achieved during the bicycle ergometer test (P < 0.001), and also, the overall BFT score was highly significantly correlated (P < 0.001). The overall rate of false-positive and false-negative results was 4.0 %. The BFT results measured in the three physical fitness test items were highly correlated with the output measured during the bicycle ergometer tests. The rate of false-positive and false-negative results was low. The test items thus represent an appropriate measurement instrument because the test items require few equipment and less time. Additionally, a large number of subjects can be assessed. We suggest that it would be more useful to assess the physical fitness of this special group exclusively on the basis of the BFT instead of using the bicycle ergometer test.

  14. As-Run Physics Analysis for the UCSB-1 Experiment in the Advanced Test Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Nielsen, Joseph Wayne [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-09-01

    The University of California Santa Barbara (UCSB) -1 experiment was irradiated in the A-10 position of the ATR. The experiment was irradiated during cycles 145A, 145B, 146A, and 146B. Capsule 6A was removed from the test train following Cycle 145A and replaced with Capsule 6B. This report documents the as-run physics analysis in support of Post-Irradiation Examination (PIE) of the test. This report documents the as-run fluence and displacements per atom (DPA) for each capsule of the experiment based on as-run operating history of the ATR. Average as-run heating rates for each capsule are also presented in this report to support the thermal analysis.

  15. A Fitness Performance Test for School Children and its Correlation with Physical Working Capacity and Maximal Oxygen Uptake

    Science.gov (United States)

    Cumming, Gordon R.; Keynes, Rhoda

    1967-01-01

    The Canadian Association for Health, Physical Education and Recreation fitness test (CAHPER test) composed of six items was compared to two laboratory tests of endurance fitness, physical working capacity at a minute pulse rate of 170 (PWC170) and maximum oxygen uptake (Vo2 max.) in over 500 Winnipeg school children of both sexes aged 6 to 17 years. CAHPER test results were similar to the national average published by CAHPER in a test booklet. Correlation coefficients (r) of Vo2 max. for boys with the CAHPER tests were: sit-ups .42, broad jump .69, shuttle run .50, arm hang .43, 50-yard dash .60, 300-yard run .65; for girls the r values were about half the values for the boys. Much of the correlation between CAHPER tests and Vo2 max. or PWC170 depended on the association of each test with body size. When multiple correlations were obtained including surface area as the first variable, the only significant factor correlating with the endurance tests was the arm hang; none of the other tests showed a significant correlation. “Physical fitness” is task-specific, so that a subject's position in the scoring scale of a fitness test depends entirely upon the test. The CAHPER test for physical fitness shows little or no correlation with standard laboratory measures of endurance in average children. PMID:6022304

  16. Correlation of Chemical and Physical Test Data For the Environment Ageing of Coflon (PVDF). Revised

    Science.gov (United States)

    Morgan, G. J.; Campion, R. P.

    1997-01-01

    This report aims to identify correlations between mechanical property changes and chemical/morphological structure changes for Coflon. It is intended both to illustrate the overall methodology and to indicate the testing that needs to be undertaken in order to obtain correlations. Many fluid exposures have now been carried out on Coflon during the project and many data generated as a result. The report summarises the changes observed in mechanical and physical properties and relates these as well as possible to the chemistry thought to be occurring during ageing. For this purpose, data have been collated from already-issued MERL and TRI technical and progress reports. Most of the mechanical testing of aged testpieces has been performed soon after the completion of the exposure; however, there is of necessity a delay in obtaining chemical analysis of the same testpieces, so that more physical than chemical data are shown. Three fluids have so far caused measurable deterioration of Coflon, these being: methanol (Fluid A), a methanol and amine mixture (Fluid G), and a mixture of methane, carbon dioxide gas and hydrogen sulphide gas plus aqueous amine (Fluid F). Only the effects of these fluids will be dealt with in any detail in this report, although other fluids are assessed to give relevant background information. Relevant test data collated here include: tensile modulus and related properties, mode of sample failure at break, fracture toughness, fatigue crack growth rate and resistance, stress relaxation rate, permeation coefficients, % crystallinity and molecular weight distributions together with changes in fluorine levels, and other observations where appropriate. However, not all of these were obtained for every ageing condition. Because of the wide range of tests employed, and the different ways in which their results are obtained, the following section has been included to serve as a background for making comparisons.

  17. A Pilot Test of the Additive Benefits of Physical Exercise to CBT for OCD.

    Science.gov (United States)

    Rector, Neil A; Richter, Margaret A; Lerman, Bethany; Regev, Rotem

    2015-01-01

    The majority of "responders" to first-line cognitive-behavioural therapy (CBT) and pharmacological treatments for obsessive-compulsive disorder (OCD) are left with residual symptoms that are clinically relevant and disabling. Therefore, there is pressing need for widely accessible efficacious alternative and/or adjunctive treatments for OCD. Accumulating evidence suggests that physical exercise may be one such intervention in the mood and anxiety disorders broadly, although we are aware of only two positive small-scale pilot studies that have tested its clinical benefits in OCD. This pilot study aimed to test the feasibility and preliminary efficacy of adding a structured physical exercise programme to CBT for OCD. A standard CBT group was delivered concurrently with a 12-week customized exercise programme to 11 participants. The exercise regimen was individualized for each participant based on peak heart rate measured using an incremental maximal exercise test. Reports of exercise adherence across the 12-week regimen exceeded 80%. A paired-samples t-test indicated very large treatment effects in Yale-Brown Obsessive-Compulsive Scale scores from pre- to post-treatment in CBT group cohorts led by expert CBT OCD specialists (d = 2.55) and junior CBT clinician non-OCD specialists (d = 2.12). These treatment effects are very large and exceed effects typically observed with individual and group-based CBT for OCD based on leading meta-analytic reviews, as well as previously obtained treatment effects for CBT using the same recruitment protocol without exercise. As such, this pilot work demonstrates the feasibility and significant potential clinical utility of a 12-week aerobic exercise programme delivered in conjunction with CBT for OCD.

  18. The Entrance test of physics and Workbook in teaching of physics at secondary vocational school within long-term pedagogical research

    Science.gov (United States)

    Kerlínová, Věra

    2017-01-01

    Within the long-term pedagogical research ongoing since the school year 2008/2009 to 2015/2016 at the secondary vocational school in Bohumín was through of Entrance test of physics, which included curriculum of the sixth to ninth year of elementary school, regularly finding out, in which parts of Entrance test - Unit conversions, International System of Units, Properties of matter, Mechanics, Thermodynamics, Electricity and Magnetism, Optics, Atoms and Universe - pupils of the 1st years of secondary vocational school, technical and non-technical, reach a higher number of correct answers, in which dominates the wrong answers and which parts of the test pupils are better left out completely. It turned out that the results of these tests are very informative not only for theoretical and practical teaching, but also technical and other science subjects. The results of the Entrance tests are also a valuable source of information for continuous innovation Workbook of Physics - Mechanics for the 1st year of secondary vocational schools [1] - whose the first version began during the school year 2007/2008 and which was tested within pre-research in school years 2008/2009, 2009/2010 and within research in school year 2010/2011. On the basis of feedbacks getting from research the Workbook is regularly expanded, innovated and updated. The Workbook consists of parts dedicated to physical concepts, physical tasks, proposals to physical experiments, pupils comments from viewed video projection and documentary films, examples from the world of science and technology, examples from practice and real life, physical terminology in English, quizzes, competitions, interesting things and links related to discussed curriculum. The Workbook is divided into thematic sections, chapters and subchapters similar as physics textbooks for pupils of the 1st years of Secondary Schools in the Czech Republic. In the Workbook there are included tasks on fill in the words, polynomial tasks with

  19. Physical and Hydraulic Properties of Rock Specimens from Grimsel Test Site, Switzerland

    Science.gov (United States)

    Zhang, M.; Takeda, M.

    2007-12-01

    The Grimsel Test Site (GTS) is located at an altitude of 1730 meters in the granite rock of Aar Massif in central Switzerland. It lies at a depth of around 450 meters beneath the surface and was established over 20 years ago by the National Cooperative for the Disposal of Radioactive Waste (Nagra) as a center for underground Research and Development (R&D) supporting a wide range of related research projects. Among many of them, an international cooperative project defined as the Long Term Diffusion (LTD) has been performing to obtain quantitative information on matrix diffusion in rock strata under in-situ conditions. A set of laboratory experiments is also planed to determine the physical, hydraulic and diffusive transport properties of rock specimens taken from the same test site. In this poster, we present the preliminary results of both physical and hydraulic properties of the rock specimens being tested, including the bulk density, porosity, specific surface area and pore distribution, microstructure, P and S wave velocities, electrical resistivity, air and water permeabilities. The results obtained in this study indicate that: 1) The porosity and wave velocities of Grimsel granite are relatively low compared to the average values of igneous rocks indicating that micro-cracks can potentially exist within grain minerals. 2) The air and water permeabilities obtained from the air and water permeability tests are consistent that illustrates the accuracy of both experiments. 3) Permeability is not a simple function of effective confining pressure. It is very sensitive to confining pressure especially at low pressure levels. Besides, the permeability is hysteretic depending on confining pressure, pore pressure and stress history. 4) Similar to the hydraulic properties, diffusive transport properties of rock specimens can also be significantly affected by the confining pressure conditions. Laboratory diffusion tests considering the effects of stress conditions are

  20. PHYSICS

    CERN Multimedia

    D. Futyan

    A lot has transpired on the “Physics” front since the last CMS Bulletin. The summer was filled with preparations of new Monte Carlo samples based on CMSSW_3, the finalization of all the 10 TeV physics analyses [in total 50 analyses were approved] and the preparations for the Physics Week in Bologna. A couple weeks later, the “October Exercise” commenced and ran through an intense two-week period. The Physics Days in October were packed with a number of topics that are relevant to data taking, in a number of “mini-workshops”: the luminosity measurement, the determination of the beam spot and the measurement of the missing transverse energy (MET) were the three main topics.  Physics Week in Bologna The second physics week in 2009 took place in Bologna, Italy, on the week of Sep 7-11. The aim of the week was to review and establish how ready we are to do physics with the early collisions at the LHC. The agenda of the week was thus pac...

  1. PHYSICS

    CERN Multimedia

    D. Futyan

    A lot has transpired on the “Physics” front since the last CMS Bulletin. The summer was filled with preparations of new Monte Carlo samples based on CMSSW_3, the finalization of all the 10 TeV physics analyses [in total 50 analyses were approved] and the preparations for the Physics Week in Bologna. A couple weeks later, the “October Exercise” commenced and ran through an intense two-week period. The Physics Days in October were packed with a number of topics that are relevant to data taking, in a number of “mini-workshops”: the luminosity measurement, the determination of the beam spot and the measurement of the missing transverse energy (MET) were the three main topics.   Physics Week in Bologna The second physics week in 2009 took place in Bologna, Italy, on the week of Sep 7-11. The aim of the week was to review and establish (we hoped) the readiness of CMS to do physics with the early collisions at the LHC. The agenda of the...

  2. Correlations between the simulated military tasks performance and physical fitness tests at high altitude

    Directory of Open Access Journals (Sweden)

    Eduardo Borba Neves

    2017-11-01

    Full Text Available The aim of this study was to investigate the Correlations between the Simulated Military Tasks Performance and Physical Fitness Tests at high altitude. This research is part of a project to modernize the physical fitness test of the Colombian Army. Data collection was performed at the 13th Battalion of Instruction and Training, located 30km south of Bogota D.C., with a temperature range from 1ºC to 23ºC during the study period, and at 3100m above sea level. The sample was composed by 60 volunteers from three different platoons. The volunteers start the data collection protocol after 2 weeks of acclimation at this altitude. The main results were the identification of a high positive correlation between the 3 Assault wall in succession and the Simulated Military Tasks performance (r = 0.764, p<0.001, and a moderate negative correlation between pull-ups and the Simulated Military Tasks performance (r = -0.535, p<0.001. It can be recommended the use of the 20-consecutive overtaking of the 3 Assault wall in succession as a good way to estimate the performance in operational tasks which involve: assault walls, network of wires, military Climbing Nets, Tarzan jump among others, at high altitude.

  3. FIRE, A Test Bed for ARIES-RS/AT Advanced Physics and Plasma Technology

    International Nuclear Information System (INIS)

    Meade, Dale M.

    2004-01-01

    The overall vision for FIRE [Fusion Ignition Research Experiment] is to develop and test the fusion plasma physics and plasma technologies needed to realize capabilities of the ARIES-RS/AT power plant designs. The mission of FIRE is to attain, explore, understand and optimize a fusion dominated plasma which would be satisfied by producing D-T [deuterium-tritium] fusion plasmas with nominal fusion gains ∼10, self-driven currents of ∼80%, fusion power ∼150-300 MW, and pulse lengths up to 40 s. Achieving these goals will require the deployment of several key fusion technologies under conditions approaching those of ARIES-RS/AT. The FIRE plasma configuration with strong plasma shaping, a double null pumped divertor and all metal plasma-facing components is a 40% scale model of the ARIES-RS/AT plasma configuration. ''Steady-state'' advanced tokamak modes in FIRE with high beta, high bootstrap fraction, and 100% noninductive current drive are suitable for testing the physics of the ARIES-RS/A T operating modes. The development of techniques to handle power plant relevant exhaust power while maintaining low tritium inventory is a major objective for a burning plasma experiment. The FIRE high-confinement modes and AT-modes result in fusion power densities from 3-10 MWm -3 and neutron wall loading from 2-4 MWm -2 which are at the levels expected from the ARIES-RS/AT design studies

  4. Final report on physical test program of Spanish clays (Saponites and bentonites)

    Energy Technology Data Exchange (ETDEWEB)

    Pusch, R.; Karnland, O.; Sanden, T.

    1996-10-01

    Two Spanish candidate buffer clays were hydrothermally treated and then investigated with respect to the physical properties and chemical and mineralogical compositions. four temperatures were used: room temperature 70 degree centigree, 120 degree centigree and 170 degree centigree, and three periods of testing: 10 days, 60 days and 360 days. The hydrothermal treatment was made by use of pressurized vessels with different solutions rich in Na``+/Ca``2+, K``+ and Mg``2+, respectively. The testing comprised determination of physical properties, e.g. the hydraulic conductivity and the rheological behavior, as well as of chemical and mineralogical changes. The hydraulic conductivity was found to be significantly affected by the type of dominant cation. With time, the conductivity dropped due to microstructural homogenization but exposure to higher temperatures caused an increased conductivity. The mechanical strength was highest of the Saponites primarily due to colloid-chemical effects. The dominant chemical effect up to 120 degree centigree was cation exchange. At 170 degree centigree significant dissolution took place, releasing silica from the clay. Mineral changes were insignificant and no conversion of the smectite to illite could be identified in the montmorillonitic clay, while some slight alteration of saponite to illite took place to about the same extent at all temperatures, including room temperature.

  5. BENCHMARK EVALUATION OF THE INITIAL ISOTHERMAL PHYSICS MEASUREMENTS AT THE FAST FLUX TEST FACILITY

    Energy Technology Data Exchange (ETDEWEB)

    John Darrell Bess

    2010-05-01

    The benchmark evaluation of the initial isothermal physics tests performed at the Fast Flux Test Facility, in support of Fuel Cycle Research and Development and Generation-IV activities at the Idaho National Laboratory, has been completed. The evaluation was performed using MCNP5 with ENDF/B-VII.0 nuclear data libraries and according to guidelines provided for inclusion in the International Reactor Physics Experiment Evaluation Project Handbook. Results provided include evaluation of the initial fully-loaded core critical, two neutron spectra measurements near the axial core center, 32 reactivity effects measurements (21 control rod worths, two control rod bank worths, six differential control rod worths, two shutdown margins, and one excess reactivity), isothermal temperature coefficient, and low-energy electron and gamma spectra measurements at the core center. All measurements were performed at 400 ºF. There was good agreement between the calculated and benchmark values for the fully-loaded core critical eigenvalue, reactivity effects measurements, and isothermal temperature coefficient. General agreement between benchmark experiment measurements and calculated spectra for neutrons and low-energy gammas at the core midplane exists, but calculations of the neutron spectra below the core and the low-energy gamma spectra at core midplane did not agree well. Homogenization of core components may have had a significant impact upon computational assessment of these effects. Future work includes development of a fully-heterogeneous model for comprehensive evaluation. The reactor physics measurement data can be used in nuclear data adjustment and validation of computational methods for advanced fuel cycle and nuclear reactor systems using Liquid Metal Fast Reactor technology.

  6. Relationship between physical performance testing results and peak running intensity during professional rugby league match play.

    Science.gov (United States)

    Duthie, Grant M; Thornton, Heidi R; Delaney, Jace A; McMahon, James T; Benton, Dean T

    2017-10-07

    The purpose of this study was to examine the relationship between individual athletes' physical characteristics and both the peak running intensities and the decline in peak running intensities during competition. Twenty-two professional rugby league athletes (age; 24.1 ± 4.0 years, body mass; 101.4 ± 9.5 kg) underwent a series of physical testing procedures. Peak running intensity was determined using a moving average technique, applied to the speed (m·min), acceleration/deceleration (m·s) and metabolic power (W·kg) during competition, across 10 different durations. The power law relationship was then established, yielding an intercept and slope for the movement variables. Mixed linear models were then used to determine the relationship between physical characteristics and intercept and slope values. There were large, positive relationships between a player's maximal speed and both peak running speeds (ES = 0.56, 90% CI: 0.20 to 0.78) and metabolic power (0.57, 0.21 to 0.79) during competition. In contrast, there were large, negative associations between maximal speed and the rate of decline in running speed (-0.60, -0.81 to -0.27) and metabolic power (-0.65, -0.83 to -0.32) during competition. Similarly, there were negative associations between relative squat strength and the rate of decline in running speed (moderate: -0.41, -0.69 to -0.04) and metabolic power (large: -0.53, -0.77 to -0.17) during competition. The findings of this study demonstrate that a players running intensity during competition is underpinned by the individual athletes physiological qualities. Athletes demonstrating higher maximal speeds in testing were able to maintain higher running intensities over short durations, but had a greater decrease in running intensity as duration increased.

  7. Commissioning experience and beam physics measurements at the SwissFEL Injector test Facility

    CERN Document Server

    Schietinger, T.; Aiba, M.; Arsov, V.; Bettoni, S.; Beutner, B.; Calvi, M.; Craievich, P.; Dehler, M.; Frei, F.; Ganter, R.; Hauri, C. P.; Ischebeck, R.; Ivanisenko, Y.; Janousch, M.; Kaiser, M.; Keil, B.; Löhl, F.; Orlandi, G. L.; Ozkan Loch, C.; Peier, P.; Prat, E.; Raguin, J.-Y.; Reiche, S.; Schilcher, T.; Wiegand, P.; Zimoch, E.; Anicic, D.; Armstrong, D.; Baldinger, M.; Baldinger, R.; Bertrand, A.; Bitterli, K.; Bopp, M.; Brands, H.; Braun, H. H.; Brönnimann, M.; Brunnenkant, I.; Chevtsov, P.; Chrin, J.; Citterio, A.; Csatari Divall, M.; Dach, M.; Dax, A.; Ditter, R.; Divall, E.; Falone, A.; Fitze, H.; Geiselhart, C.; Guetg, M. W.; Hämmerli, F.; Hauff, A.; Heiniger, M.; Higgs, C.; Hugentobler, W.; Hunziker, S.; Janser, G.; Kalantari, B.; Kalt, R.; Kim, Y.; Koprek, W.; Korhonen, T.; Krempaska, R.; Laznovsky, M.; Lehner, S.; Le Pimpec, F.; Lippuner, T.; Lutz, H.; Mair, S.; Marcellini, F.; Marinkovic, G.; Menzel, R.; Milas, N.; Pal, T.; Pollet, P.; Portmann, W.; Rezaeizadeh, A.; Ritt, S.; Rohrer, M.; Schär, M.; Schebacher, L.; Scherrer, St.; Schlott, V.; Schmidt, T.; Schulz, L.; Smit, B.; Stadler, M.; Steffen, Bernd; Stingelin, L.; Sturzenegger, W.; Treyer, D. M.; Trisorio, A.; Tron, W.; Vicario, C.; Zennaro, R.; Zimoch, D.

    2016-10-26

    The SwissFEL Injector Test Facility operated at the Paul Scherrer Institute between 2010 and 2014, serving as a pilot plant and test bed for the development and realization of SwissFEL, the x-ray Free Electron Laser facility under construction at the same institute. The test facility consisted of a laser-driven rf electron gun followed by an S-band booster linac, a magnetic bunch compression chicane and a diagnostic section including atransverse deflecting rf cavity. It delivered electron bunchesof up to200 pC chargeand up to 250 MeV beam energy at a repetition rate of 10 Hz. The measurements performed at the test facility not only demonstrated the beam parameters required to drive the first stage of a FEL facility, but also led to significant advances in instrumentation technologies, beam characterization methods and the generation, transport and compression of ultralow-emittance beams. We give a comprehensive overview of the commissioning experience of the principal subsystems and the beam physics measureme...

  8. The Use of Numerical Modeling in the Planning of Physical Model Tests in a Multidirectional Wave Basin

    DEFF Research Database (Denmark)

    Carci, Enric; Rivero, Francisco J.; Burcharth, Hans Falk

    2003-01-01

    takes place on the breakwater, and it was finally suggested to complement the numerical analysis with physical model tests in a multidirectional wave basin. Due to the large dimensions of the prototype area, several numerical models were applied to optimize the physical model lay-out (model scale......, boundary conditions, location of wave gauges). All physical model test results were compared with results from a spectral wave propagation model GHOST simulations, showing good agreement on wave amplification in the focusing area behind the shoal. The combination of both numerical and physical modeling...... improved the knowledge on the problem studied. Read More: http://www.worldscientific.com/doi/abs/10.1142/9789812791306_0042?prevSearch=The+Use+of+Numerical+Modeling+in+the+Planning+of+Physical+Model+Tests+in+a+Multidirectional+Wave+Basin&searchHistoryKey=...

  9. PHYSICS

    CERN Multimedia

    J. Incandela

    The all-plenary format of the CMS week in Cyprus gave the opportunity to the conveners of the physics groups to present the plans of each physics analysis group for tackling early physics analyses. The presentations were complete, so all are encouraged to browse through them on the Web. There is a wealth of information on what is going on, by whom and on what basis and priority. The CMS week was followed by two CMS “physics events”, the ICHEP08 days and the physics days in July. These were two weeks dedicated to either the approval of all the results that would be presented at ICHEP08, or to the review of all the other Monte-Carlo based analyses that were carried out in the context of our preparations for analysis with the early LHC data (the so-called “2008 analyses”). All this was planned in the context of the beginning of a ramp down of these Monte Carlo efforts, in anticipation of data.  The ICHEP days are described below (agenda and talks at: http://indic...

  10. PHYSICS

    CERN Multimedia

    Joe Incandela

    There have been two plenary physics meetings since the December CMS week. The year started with two workshops, one on the measurements of the Standard Model necessary for “discovery physics” as well as one on the Physics Analysis Toolkit (PAT). Meanwhile the tail of the “2007 analyses” is going through the last steps of approval. It is expected that by the end of January all analyses will have converted to using the data from CSA07 – which include the effects of miscalibration and misalignment. January Physics Days The first Physics Days of 2008 took place on January 22-24. The first two days were devoted to comprehensive re¬ports from the Detector Performance Groups (DPG) and Physics Objects Groups (POG) on their planning and readiness for early data-taking followed by approvals of several recent studies. Highlights of POG presentations are included below while the activities of the DPGs are covered elsewhere in this bulletin. January 24th was devo...

  11. Washing Up with Hot and Cold Running Neutrons: Tests of Fundamental Physical Laws

    International Nuclear Information System (INIS)

    Lamoreaux, Steve K.

    2005-01-01

    The properties of the Neutron and its interactions with matter have been long applied to tests of fundamental physical principles. An example of such an application is a test of the stability of the fundamental constants of physics based on possible changes in low energy absorption resonances and the isotopic composition of a prehistoric natural reactor that operated two billion years ago in equatorial Africa. A recent re-analysis of this event indicates that some fundamental constants have changed. The focus of the presentation will be on the uses of cold and ultracold neutrons (UCNs), and in particular, the experimental search for the neutron electric dipole moment (EDM) which would be evidence for time reversal asymmetry in the microscopic interactions within the neutron. Ultracold neutrons are neutrons with kinetic energy sufficiently low that they can be reflected from material surfaces for all angles of incidence, allowing UCNs to be stored in material bottles for times approaching the beta decay lifetime of the neutron. Vagaries associated with the production, transport, and storage of UCNs will be described, and an overview progress on development of a new neutron EDM experiment to be operated at LANSCE will be presented. This new experiment has potential to improve the measurement sensitivity by a factor of 100. Although an EDM has not be observed for any elementary particle, experimental limits have been crucial for testing extensions to the so-called Standard Model of Electroweak Interactions. Our anticipated sensitivity will be sufficient to address questions regarding the observed matter-antimatter asymmetry in the Universe

  12. Physical activity and self-esteem: testing direct and indirect relationships associated with psychological and physical mechanisms

    Directory of Open Access Journals (Sweden)

    Zamani Sani SH

    2016-10-01

    Full Text Available Seyed Hojjat Zamani Sani,1 Zahra Fathirezaie,1 Serge Brand,2 Uwe Pühse,3 Edith Holsboer-Trachsler,2 Markus Gerber,3 Siavash Talepasand4 1Department of Motor Behavior, Faculty of Physical Education and Sport Science, University of Tabriz, Tabriz, Iran; 2Psychiatric Clinics of the University of Basel, Center for Affective, Stress and Sleep Disorders (ZASS, 3Department of Sport, Exercise and Health, Sport Science Section, University of Basel, Basel, Switzerland; 4Department of Psychology and Educational Sciences, Semnan University, Semnan, Iran Abstract: In the present study, we investigated the relationship between physical activity (PA and self-esteem (SE, while introducing body mass index (BMI, perceived physical fitness (PPF, and body image (BI in adults (N =264, M =38.10 years. The findings indicated that PA was directly and indirectly associated with SE. BMI predicted SE neither directly nor indirectly, but was directly associated with PPF and both directly and indirectly with BI. Furthermore, PPF was directly related to BI and SE, and a direct association was found between BI and SE. The pattern of results suggests that among a sample of adults, PA is directly and indirectly associated with SE, PPF, and BI, but not with BMI. PA, PPF, and BI appear to play an important role in SE. Accordingly, regular PA should be promoted, in particular, among adults reporting lower SE. Keywords: physical activity, self-esteem, physical fitness, body image, adults

  13. The relationship between history and physical examination findings and the outcome of electrodiagnostic testing in patients with sciatica referred to physical therapy.

    Science.gov (United States)

    Savage, Nathan J; Fritz, Julie M; Thackeray, Anne

    2014-07-01

    Cross-sectional diagnostic accuracy study. To investigate the relationship between history and physical examination findings and the outcome of electrodiagnostic testing in patients with sciatica referred to physical therapy. Electrodiagnostic testing is routinely used to evaluate patients with sciatica. Recent evidence suggests that the presence of radiculopathy identified with electrodiagnostic testing may predict better functional outcomes in these patients. While some patient history and physical examination findings have been shown to predict the presence of disc herniation or neurological insult, little is known about their relationship to the results of electrodiagnostic testing. Electrodiagnostic testing was performed on 38 patients with sciatica who participated in a randomized trial that compared different physical therapy interventions. The diagnostic gold standard was the presence or absence of radiculopathy, based on the results of the needle electromyographic examination. Diagnostic sensitivity and specificity values were calculated, along with corresponding likelihood ratios, for select patient history and physical examination variables. No significant relationship was found between select patient history and physical examination findings, analyzed individually or in combination, and the outcome of electrodiagnostic testing. Diagnostic sensitivity values ranged from 0.03 (95% confidence interval [CI]: 0.00, 0.24) to a high of 0.95 (95% CI: 0.72, 0.99), and specificity values ranged from 0.10 (95% CI: 0.02, 0.34) to a high of 0.95 (95% CI: 0.72, 0.99). Positive likelihood ratios ranged from 0.15 (95% CI: 0.01, 2.87) to a high of 2.33 (95% CI: 0.71, 7.70), and negative likelihood ratios ranged from 2.00 (95% CI: 0.35, 11.48) to a low of 0.50 (95% CI: 0.03, 8.10). In this investigation, the relationship between patient history and physical examination findings and the outcome of electrodiagnostic testing among patients with sciatica was not found to be

  14. Physics

    CERN Document Server

    Cullen, Katherine

    2005-01-01

    Defined as the scientific study of matter and energy, physics explains how all matter behaves. Separated into modern and classical physics, the study attracts both experimental and theoretical physicists. From the discovery of the process of nuclear fission to an explanation of the nature of light, from the theory of special relativity to advancements made in particle physics, this volume profiles 10 pioneers who overcame tremendous odds to make significant breakthroughs in this heavily studied branch of science. Each chapter contains relevant information on the scientist''s childhood, research, discoveries, and lasting contributions to the field and concludes with a chronology and a list of print and Internet references specific to that individual.

  15. Testing Social-Cognitive Theory to Explain Physical Activity Change in Adolescent Girls from Low-Income Communities

    Science.gov (United States)

    Dewar, Deborah L.; Plotnikoff, Ronald C.; Morgan, Philip J.; Okely, Anthony D.; Costigan, Sarah A.; Lubans, David R.

    2013-01-01

    Purpose: The aim of this study was to test the hypothesized structural paths in Bandura's social-cognitive theory (SCT) model on adolescent girls' physical activity following a 12-month physical activity and dietary intervention to prevent obesity. Method: We conducted a 12-month follow-up study of 235 adolescent girls ("M[subscript…

  16. Development and Testing of a Nutrition, Food Safety, and Physical Activity Checklist for EFNEP and FSNE Adult Programs

    Science.gov (United States)

    Bradford, Traliece; Serrano, Elena L.; Cox, Ruby H.; Lambur, Michael

    2010-01-01

    Objective: To develop and assess reliability and validity of the Nutrition, Food Safety, and Physical Activity Checklist to measure nutrition, food safety, and physical activity practices among adult Expanded Food and Nutrition Education Program (EFNEP) and Food Stamp Nutrition Education program (FSNE) participants. Methods: Test-retest…

  17. Physical Characteristics of Laboratory Tested Concrete as a Substituion of Gravel on Normal Concrete

    Science.gov (United States)

    Butar-butar, Ronald; Suhairiani; Wijaya, Kinanti; Sebayang, Nono

    2018-03-01

    Concrete technology is highly potential in the field of construction for structural and non-structural construction. The amount uses of this concrete material raise the problem of solid waste in the form of concrete remaining test results in the laboratory. This waste is usually just discarded and not economically valuable. In solving the problem, this experiment was made new materials by using recycle material in the form of recycled aggregate which aims to find out the strength characteristics of the used concrete as a gravel substitution material on the normal concrete and obtain the value of the substitution composition of gravel and used concrete that can achieve the strength of concrete according to the standard. Testing of concrete characteristic is one of the requirements before starting the concrete mixture. This test using SNI method (Indonesian National Standard) with variation of comparison (used concrete : gravel) were 15: 85%, 25: 75%, 35:65%, 50:50 %, 75: 25%. The results of physical tests obtained the mud content value of the mixture gravel and used concrete is 0.03 larger than the standard of SNI 03-4142-1996 that is equal to 1.03%. so the need watering or soaking before use. The water content test results show an increase in the water content value if the composition of the used concrete increases. While the specific gravity value for variation 15: 85% until 35: 65% fulfilled the requirements of SNI 03-1969-1990. the other variasion show the specifics gravity value included on the type of light materials.

  18. Initial Testing of the Microscopic Depletion Implementation in the MAMMOTH Reactor Physics Application

    Energy Technology Data Exchange (ETDEWEB)

    Ortensi, J. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Wang, Y. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Schunert, S. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Ganapol, B. D. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Gleicher, F. N. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Baker, B. [Idaho National Lab. (INL), Idaho Falls, ID (United States); DeHart, M. D. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-09-01

    Present and new nuclear fuels that will be tested at the Transient Reactor Test (TREAT) facility will be analyzed with the MAMMOTH reactor physics application, currently under development, at Idaho National Laboratory. MAMMOTH natively couples the BISON, RELAP-7, and Rattlesnake applications within the MOOSE framework. This system allows the irradiation of fuel from beginning of life in a nuclear reactor until it is placed in TREAT for fuel testing within the same analysis mesh and, thus, retaining a very high level of resolution and fidelity. The calculation of the isotopic distribution in fuel requires the solution to the decay and transmutation equations coupled to the neutron transport equation. The Chebyshev Rational Approximation Method (CRAM) is the current state-of-the-art in the field, as was chosen to be the solver for the decay and transmutation equations. This report shows that the implementation of the CRAM solver within MAMMOTH is correct with various analytic benchmarks for decay and transmutation of nuclides. The results indicate that the solutions with CRAM order 16 achieve the level of precision of the benchmark. The CRAM solutions show little sensitivity to the time step size and consistently produce a high level of accuracy for isotopic decay for time steps of 1x10^11 years. Comparisons to DRAGON5 with 297 isotopes yield comparable results, but some differences need to be further analyzed.

  19. World Year of Physics: A direct test of E=mc2

    Science.gov (United States)

    Rainville, Simon; Thompson, James K.; Myers, Edmund G.; Brown, John M.; Dewey, Maynard S.; Kessler, Ernest G.; Deslattes, Richard D.; Börner, Hans G.; Jentschel, Michael; Mutti, Paolo; Pritchard, David E.

    2005-12-01

    One of the most striking predictions of Einstein's special theory of relativity is also perhaps the best known formula in all of science: E=mc2. If this equation were found to be even slightly incorrect, the impact would be enormous - given the degree to which special relativity is woven into the theoretical fabric of modern physics and into everyday applications such as global positioning systems. Here we test this mass-energy relationship directly by combining very accurate measurements of atomic-mass difference, Δm, and of γ-ray wavelengths to determine E, the nuclear binding energy, for isotopes of silicon and sulphur. Einstein's relationship is separately confirmed in two tests, which yield a combined result of 1-Δmc2/E=(-1.4+/-4.4)×10-7, indicating that it holds to a level of at least 0.00004%. To our knowledge, this is the most precise direct test of the famous equation yet described.

  20. The pattern and technique in the clinical evaluation of the adult hip: the common physical examination tests of hip specialists.

    Science.gov (United States)

    Martin, Hal D; Kelly, Bryan T; Leunig, Michael; Philippon, Marc J; Clohisy, John C; Martin, RobRoy L; Sekiya, Jon K; Pietrobon, Ricardo; Mohtadi, Nicholas G; Sampson, Thomas G; Safran, Marc R

    2010-02-01

    The purpose of this study was to systematically evaluate the technique and tests used in the physical examination of the adult hip performed by multiple clinicians who regularly treat patients with hip problems and identify common physical examination patterns. The subjects included 5 men and 6 women with a mean age (+/-SD) of 29.8 +/- 9.4 years. They underwent physical examination of the hip by 6 hip specialists with a strong interest in hip-related problems. All examiners were blind to patient radiographs and diagnoses. Patient examinations were video recorded and reviewed. It was determined that 18 tests were most frequently performed (>or=40%) by the examiners, 3 standing, 11 supine, 3 lateral, and 1 prone. Of the most frequently performed tests, 10 were performed more than 50% of the time. The tests performed in the supine position were as follows: flexion range of motion (ROM) (percentage of use, 98%), flexion internal rotation ROM (98%), flexion external rotation ROM (86%), passive supine rotation test (76%), flexion/adduction/internal rotation test (70%), straight leg raise against resistance test (61%), and flexion/abduction/external rotation test (52%). The tests performed in the standing position were the gait test (86%) and the single-leg stance phase test (77%). The 1 test in the prone position was the femoral anteversion test (58%). There are variations in the testing that hip specialists perform to examine and evaluate their patients, but there is enough commonality to form the basis to recommend a battery of physical examination maneuvers that should be considered for use in evaluating the hip. Patients presenting with groin, abdominal, back, and/or hip pain need to have a basic examination to ensure that the hip is not overlooked. A comprehensive physical examination of the hip will benefit the patient and the physician and serve as the foundation for future multicenter clinical studies. (c) 2010 Arthroscopy Association of North America. Published

  1. Physical fitness and future cardiovascular risk in argentine children and adolescents: an introduction to the ALPHA test battery.

    Science.gov (United States)

    Secchi, Jeremías David; García, Gastón César; España-Romero, Vanesa; Castro-Piñero, José

    2014-04-01

    A high level of physical fitness is associated with cardiovascular health in children and adolescents. At present, there is no systematic implementation of a test battery to assess physical fitness at schools in Argentina. The main objective of this study was to implement the ALPHA test battery to determine the physical fitness of a sample made up of Argentine children and adolescents and to establish the proportion of subjects whose aerobic capacity is indicative of future cardiovascular risk. A sample of 1867 participants (967 girls) aged 6 to 19.5 years old assessed using the ALPHA test battery. Four components of physical fitness were measured: 1) morphological component: height, body weight, and waist circumference; 2) musculoskeletal component: standing long jump test; 3) motor component: speed/agility test (4x10 m shuttle run); 4) cardiorespiratory component: course-navette 20 m, shuttle run test and estimation of maximal oxygen consumption. The 5th, 25th, 50th, 75th, and 95th percentiles were estimated for the main tests. The mean body mass index was 20.8 kg/m2, and 7.8% of participants were classified as obese. In ddition, male participants had a better performance in all physical fitness tests when compared to girls (pphysical fitness. Such differences increase with age. Approximately one every three participants had an aerobic capacity indicative of future cardiovascular risk.

  2. PHYSICS

    CERN Multimedia

    Chris Hill

    2012-01-01

    The months that have passed since the last CMS Bulletin have been a very busy and exciting time for CMS physics. We have gone from observing the very first 8TeV collisions produced by the LHC to collecting a dataset of the collisions that already exceeds that recorded in all of 2011. All in just a few months! Meanwhile, the analysis of the 2011 dataset and publication of the subsequent results has continued. These results come from all the PAGs in CMS, including searches for the Higgs boson and other new phenomena, that have set the most stringent limits on an ever increasing number of models of physics beyond the Standard Model including dark matter, Supersymmetry, and TeV-scale gravity scenarios, top-quark physics where CMS has overtaken the Tevatron in the precision of some measurements, and bottom-quark physics where CMS made its first discovery of a new particle, the Ξ*0b baryon (candidate event pictured below). Image 2:  A Ξ*0b candidate event At the same time POGs and PAGs...

  3. PHYSICS

    CERN Document Server

    Guenther Dissertori

    The time period between the last CMS week and this June was one of intense activity with numerous get-together targeted at addressing specific issues on the road to data-taking. The two series of workshops, namely the “En route to discoveries” series and the “Vertical Integration” meetings continued.   The first meeting of the “En route to discoveries” sequence (end 2007) had covered the measurements of the Standard Model signals as necessary prerequisite to any claim of signals beyond the Standard Model. The second meeting took place during the Feb CMS week and concentrated on the commissioning of the Physics Objects, whereas the third occurred during the April Physics Week – and this time the theme was the strategy for key new physics signatures. Both of these workshops are summarized below. The vertical integration meetings also continued, with two DPG-physics get-togethers on jets and missing ET and on electrons and photons. ...

  4. PHYSICS

    CERN Multimedia

    D. Acosta

    2011-01-01

    Since the last CMS Week, all physics groups have been extremely active on analyses based on the full 2010 dataset, with most aiming for a preliminary measurement in time for the winter conferences. Nearly 50 analyses were approved in a “marathon” of approval meetings during the first two weeks of March, and the total number of approved analyses reached 90. The diversity of topics is very broad, including precision QCD, Top, and electroweak measurements, the first observation of single Top production at the LHC, the first limits on Higgs production at the LHC including the di-tau final state, and comprehensive searches for new physics in a wide range of topologies (so far all with null results unfortunately). Most of the results are based on the full 2010 pp data sample, which corresponds to 36 pb-1 at √s = 7 TeV. This report can only give a few of the highlights of a very rich physics program, which is listed below by physics group...

  5. Clinician-Friendly Physical Performance Tests for the Hip, Ankle, and Foot.

    Science.gov (United States)

    Vogler, Joseph H; Csiernik, Alexander J; Yorgey, Marissa K; Harrison, Jerrod J; Games, Kenneth E

    2017-09-01

    Reference:  Hegedus EJ, McDonough SM, Bleakley C, Baxter D, Cook CE. Clinician-friendly lower extremity physical performance tests in athletes: a systematic review of measurement properties and correlation with injury. Part 2: the tests for the hip, thigh, foot, and ankle including the Star Excursion Balance Test. Br J Sports Med. 2015;49(10):649-656.   Do individual physical performance tests (PPTs) for the lower extremity have any relation to injury in athletes 12 years of age and older?   The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed to locate articles. Three databases were searched from inception to January 13, 2014: PubMed, CINAHL, and SPORTDiscus. Search phrases were sport, athletics, athletes, and injuries combined with strength, power, endurance, agility, and function. Reference lists of all remaining articles and personal collections of the authors were then reviewed for any missing articles.   Studies were included according to the following criteria: (1) published in English, (2) presented as complete articles (ie, no abstracts or posters), and (3) involved human participants. Studies were excluded on the following criteria: (1) a combination of PPTs was examined, (2) the results were measured using equipment that was expensive or not readily available to the average clinician, (3) the PPTs examined impairment-level data, (4) the PPTs examined tasks not relevant to the lower extremity, or (5) the participants scored 4 or less on the Tegner Activity Scale. The final analysis involved 31 studies.   The name of the PPT and methods were extracted. Each PPT was then critiqued using the Consensus-Based Standards for the Selection of Health Measurement Instruments, a 4-point Likert scale. Data were also summarized using a score of unknown, strong, moderate, limited, or conflicting for the best evidence synthesis.   A total of 14 PPTs were examined; however, names and methods of the PPTs were

  6. Physical Stress Echocardiography: Prediction of Mortality and Cardiac Events in Patients with Exercise Test showing Ischemia.

    Science.gov (United States)

    Araujo, Ana Carla Pereira de; Santos, Bruno F de Oliveira; Calasans, Flavia Ricci; Pinto, Ibraim M Francisco; Oliveira, Daniel Pio de; Melo, Luiza Dantas; Andrade, Stephanie Macedo; Tavares, Irlaneide da Silva; Sousa, Antonio Carlos Sobral; Oliveira, Joselina Luzia Menezes

    2014-11-01

    Background: Studies have demonstrated the diagnostic accuracy and prognostic value of physical stress echocardiography in coronary artery disease. However, the prediction of mortality and major cardiac events in patients with exercise test positive for myocardial ischemia is limited. Objective: To evaluate the effectiveness of physical stress echocardiography in the prediction of mortality and major cardiac events in patients with exercise test positive for myocardial ischemia. Methods: This is a retrospective cohort in which 866 consecutive patients with exercise test positive for myocardial ischemia, and who underwent physical stress echocardiography were studied. Patients were divided into two groups: with physical stress echocardiography negative (G1) or positive (G2) for myocardial ischemia. The endpoints analyzed were all-cause mortality and major cardiac events, defined as cardiac death and non-fatal acute myocardial infarction. Results: G2 comprised 205 patients (23.7%). During the mean 85.6 ± 15.0-month follow-up, there were 26 deaths, of which six were cardiac deaths, and 25 non-fatal myocardial infarction cases. The independent predictors of mortality were: age, diabetes mellitus, and positive physical stress echocardiography (hazard ratio: 2.69; 95% confidence interval: 1.20 - 6.01; p = 0.016). The independent predictors of major cardiac events were: age, previous coronary artery disease, positive physical stress echocardiography (hazard ratio: 2.75; 95% confidence interval: 1.15 - 6.53; p = 0.022) and absence of a 10% increase in ejection fraction. All-cause mortality and the incidence of major cardiac events were significantly higher in G2 (p estresse físico na doença arterial coronária, mas a predição de mortalidade e de eventos cardíacos maiores, em pacientes com teste ergométrico positivo para isquemia miocárdica, é limitada. Objetivo: Avaliar a predição de mortalidade e de eventos cardíacos maiores pela ecocardiografia com estresse f

  7. Association between the Trail Making Test and physical performance in elderly Japanese.

    Science.gov (United States)

    Hirota, Chika; Watanabe, Misuzu; Sun, Wei; Tanimoto, Yoshimi; Kono, Rei; Takasaki, Kyosuke; Kono, Koichi

    2010-01-01

    The Trail Making Test (TMT) is used in Western countries as an indicator of executive function, but there is little information regarding its use in Japan. Our previous initial study showed that the TMT was significantly associated with mobility-related functions among elderly Japanese living in the community and in this study, we increased the number of participants to clarify that result. The TMT, comprised of two parts (part A and part B), was administered to 493 subjects aged 65 years or older (164 men, 329 women). Our assessment used the time difference (DeltaTMT) between parts B and A, and eight physical performance indicators: four of preventive care (usual walking speed, timed Up & Go [TUG], one-leg standing balance and handgrip strength) and four movement parameters (maximum walking speed, dual-task TUG, stair climbing and obstacle-negotiating gait). The median DeltaTMT score was 64.01 s for men and 65.56 s for women. The DeltaTMT score increased with age, and there was no difference between sexes. Multinomial logistic regression analysis showed that a poor DeltaTMT was related to low tertiles for all physical performances. It related to the intermediate tertile of TUG and maximum walking speed, dual-task TUG, stair climbing and obstacle-negotiating gait. The TMT reflects complex walking performance, so it can be a useful synthetic indicator for health programs promoting independence in elderly Japanese.

  8. Test, revision, and cross-validation of the Physical Activity Self-Definition Model.

    Science.gov (United States)

    Kendzierski, Deborah; Morganstein, Mara S

    2009-08-01

    Structural equation modeling was used to test an extended version of the Kendzierski, Furr, and Schiavoni (1998) Physical Activity Self-Definition Model. A revised model using data from 622 runners fit the data well. Cross-validation indices supported the revised model, and this model also provided a good fit to data from 397 cyclists. Partial invariance was found across activities. In both samples, perceived commitment and perceived ability had direct effects on self-definition, and perceived wanting, perceived trying, and enjoyment had indirect effects. The contribution of perceived ability to self-definition did not differ across activities. Implications concerning the original model, indirect effects, skill salience, and the role of context in self-definition are discussed.

  9. Conceptualising computerized adaptive testing for measurement of latent variables associated with physical objects

    Science.gov (United States)

    Camargo, F. R.; Henson, B.

    2015-02-01

    The notion of that more or less of a physical feature affects in different degrees the users' impression with regard to an underlying attribute of a product has frequently been applied in affective engineering. However, those attributes exist only as a premise that cannot directly be measured and, therefore, inferences based on their assessment are error-prone. To establish and improve measurement of latent attributes it is presented in this paper the concept of a stochastic framework using the Rasch model for a wide range of independent variables referred to as an item bank. Based on an item bank, computerized adaptive testing (CAT) can be developed. A CAT system can converge into a sequence of items bracketing to convey information at a user's particular endorsement level. It is through item banking and CAT that the financial benefits of using the Rasch model in affective engineering can be realised.

  10. Conceptualising computerized adaptive testing for measurement of latent variables associated with physical objects

    International Nuclear Information System (INIS)

    Camargo, F R; Henson, B

    2015-01-01

    The notion of that more or less of a physical feature affects in different degrees the users' impression with regard to an underlying attribute of a product has frequently been applied in affective engineering. However, those attributes exist only as a premise that cannot directly be measured and, therefore, inferences based on their assessment are error-prone. To establish and improve measurement of latent attributes it is presented in this paper the concept of a stochastic framework using the Rasch model for a wide range of independent variables referred to as an item bank. Based on an item bank, computerized adaptive testing (CAT) can be developed. A CAT system can converge into a sequence of items bracketing to convey information at a user's particular endorsement level. It is through item banking and CAT that the financial benefits of using the Rasch model in affective engineering can be realised

  11. Microfluidic very large scale integration (VLSI) modeling, simulation, testing, compilation and physical synthesis

    CERN Document Server

    Pop, Paul; Madsen, Jan

    2016-01-01

    This book presents the state-of-the-art techniques for the modeling, simulation, testing, compilation and physical synthesis of mVLSI biochips. The authors describe a top-down modeling and synthesis methodology for the mVLSI biochips, inspired by microelectronics VLSI methodologies. They introduce a modeling framework for the components and the biochip architecture, and a high-level microfluidic protocol language. Coverage includes a topology graph-based model for the biochip architecture, and a sequencing graph to model for biochemical application, showing how the application model can be obtained from the protocol language. The techniques described facilitate programmability and automation, enabling developers in the emerging, large biochip market. · Presents the current models used for the research on compilation and synthesis techniques of mVLSI biochips in a tutorial fashion; · Includes a set of "benchmarks", that are presented in great detail and includes the source code of several of the techniques p...

  12. Physical competition increases testosterone among Amazonian forager-horticulturalists: a test of the 'challenge hypothesis'.

    Science.gov (United States)

    Trumble, Benjamin C; Cummings, Daniel; von Rueden, Christopher; O'Connor, Kathleen A; Smith, Eric A; Gurven, Michael; Kaplan, Hillard

    2012-07-22

    The challenge hypothesis posits that acute increases in testosterone (T) during male-male competition enhance performance and survivability while limiting the physiological costs of consistently high T. Human challenge hypothesis research focuses on young men in industrial populations, who have higher baseline T levels than men in subsistence populations. We tested whether the Tsimane, pathogenically stressed forager-horticulturalists of the Bolivian Amazon, would express acute T increases in response to physical competition. Saliva was collected from 88 Tsimane men (aged 16-59 years) before and after a competitive soccer match. Tsimane men had significantly lower baseline levels of T (β = -0.41, p Tsimane males exhibit acute increases in T at the same relative magnitude reported by studies in industrialized settings, with larger increases in T for those who report better individual performance.

  13. Respirator Testing Using Virus Aerosol: Comparison between Viability Penetration and Physical Penetration.

    Science.gov (United States)

    Zuo, Zhili; Kuehn, Thomas H; Pui, David Y H

    2015-07-01

    Viability, fluorescence (particle volume), photometric, viral RNA, and particle number penetration of MS2 bacteriophage through filter media used in three different models of respirators were compared to better understand the correlation between viability and physical penetration. Although viability and viral RNA penetration were better represented by particle volume penetration than particle number penetration, they were several-fold lower than photometric penetration, which was partially due to the difference in virus survival between upstream and downstream aerosol samples. Results suggest that the current NIOSH photometer-based test method can be used as a quick means to roughly differentiate respirators with different performance against virus aerosols. © The Author 2015. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

  14. Usability testing of a monitoring and feedback tool to stimulate physical activity

    Directory of Open Access Journals (Sweden)

    van der Weegen S

    2014-03-01

    Full Text Available Sanne van der Weegen,1 Renée Verwey,1,2 Huibert J Tange,3 Marieke D Spreeuwenberg,1 Luc P de Witte1,2 1Department of Health Services Research, CAPHRI School for Public Health and Primary Care, Faculty of Health Medicine and Life Sciences, Maastricht University, the Netherlands; 2Research Centre Technology in Care, Zuyd University of Applied Sciences, Heerlen, the Netherlands; 3Department of General Practice, CAPHRI School for Public Health and Primary Care, Faculty of Health Medicine and Life Sciences, Maastricht University, the Netherlands Introduction: A monitoring and feedback tool to stimulate physical activity, consisting of an activity sensor, smartphone application (app, and website for patients and their practice nurses, has been developed: the 'It's LiFe!' tool. In this study the usability of the tool was evaluated by technology experts and end users (people with chronic obstructive pulmonary disease or type 2 diabetes, with ages from 40–70 years, to improve the user interfaces and content of the tool. Patients and methods: The study had four phases: 1 a heuristic evaluation with six technology experts; 2 a usability test in a laboratory by five patients; 3 a pilot in real life wherein 20 patients used the tool for 3 months; and 4 a final lab test by five patients. In both lab tests (phases 2 and 4 qualitative data were collected through a thinking-aloud procedure and video recordings, and quantitative data through questions about task complexity, text comprehensiveness, and readability. In addition, the post-study system usability questionnaire (PSSUQ was completed for the app and the website. In the pilot test (phase 3, all patients were interviewed three times and the Software Usability Measurement Inventory (SUMI was completed. Results: After each phase, improvements were made, mainly to the layout and text. The main improvement was a refresh button for active data synchronization between activity sensor, app, and server

  15. Diagnostic validity of physical examination tests for common knee disorders: An overview of systematic reviews and meta-analysis.

    Science.gov (United States)

    Décary, Simon; Ouellet, Philippe; Vendittoli, Pascal-André; Roy, Jean-Sébastien; Desmeules, François

    2017-01-01

    More evidence on diagnostic validity of physical examination tests for knee disorders is needed to lower frequently used and costly imaging tests. To conduct a systematic review of systematic reviews (SR) and meta-analyses (MA) evaluating the diagnostic validity of physical examination tests for knee disorders. A structured literature search was conducted in five databases until January 2016. Methodological quality was assessed using the AMSTAR. Seventeen reviews were included with mean AMSTAR score of 5.5 ± 2.3. Based on six SR, only the Lachman test for ACL injuries is diagnostically valid when individually performed (Likelihood ratio (LR+):10.2, LR-:0.2). Based on two SR, the Ottawa Knee Rule is a valid screening tool for knee fractures (LR-:0.05). Based on one SR, the EULAR criteria had a post-test probability of 99% for the diagnosis of knee osteoarthritis. Based on two SR, a complete physical examination performed by a trained health provider was found to be diagnostically valid for ACL, PCL and meniscal injuries as well as for cartilage lesions. When individually performed, common physical tests are rarely able to rule in or rule out a specific knee disorder, except the Lachman for ACL injuries. There is low-quality evidence concerning the validity of combining history elements and physical tests. Copyright © 2016 Elsevier Ltd. All rights reserved.

  16. Sf36 physical functioning scale and 2-minute walk test advocated as core qualifiers to evaluate physical functioning in patients with late-onset sequelae of poliomyelitis.

    NARCIS (Netherlands)

    Stolwijk-Swuste, J.M.; Beelen, J.A.J.M.; Lankhorst, G.J.; Nollet, F.

    2008-01-01

    Objective: To select a questionnaire and walking capacity test based on comparison of clinimetric properties and mutual association to be used as "core" qualifiers for physical functioning in patients with late-onset sequelae of poliomyelitis. Design: Repeated-measures at 3-week intervals. Subjects:

  17. SF36 physical functioning scale and 2-minute walk test advocated as core qualifiers to evaluate physical functioning in patients with late-onset sequelae of poliomyelitis

    NARCIS (Netherlands)

    Stolwijk-Swüste, Janneke M.; Beelen, Anita; Lankhorst, Gustaaf J.; Nollet, Frans; Stolwijk-Swüste, J. M.; Lankhorst, G. J.; Dekker, J.; van Dijk, G. M.; van den Ende, C. H. M.; Post, B.; de Haan, R. J.; Speelman, H.

    2008-01-01

    OBJECTIVE: To select a questionnaire and walking capacity test based on comparison of clinimetric properties and mutual association to be used as "core" qualifiers for physical functioning in patients with late-onset sequelae of poliomyelitis. DESIGN: Repeated-measures at 3-week intervals. SUBJECTS:

  18. PHYSICS

    CERN Multimedia

    the PAG conveners

    2011-01-01

    The delivered LHC integrated luminosity of more than 1 inverse femtobarn by summer and more than 5 by the end of 2011 has been a gold mine for the physics groups. With 2011 data, we have submitted or published 14 papers, 7 others are in collaboration-wide review, and 75 Physics Analysis Summaries have been approved already. They add to the 73 papers already published based on the 2010 and 2009 datasets. Highlights from each physics analysis group are described below. Heavy ions Many important results have been obtained from the first lead-ion collision run in 2010. The published measurements include the first ever indications of Υ excited state suppression (PRL synopsis), long-range correlation in PbPb, and track multiplicity over a wide η range. Preliminary results include the first ever measurement of isolated photons (showing no modification), J/ψ suppression including the separation of the non-prompt component, further study of jet fragmentation, nuclear modification factor...

  19. PHYSICS

    CERN Multimedia

    D. Acosta

    2010-01-01

    The Physics Groups are actively engaged on analyses of the first data from the LHC at 7 TeV, targeting many results for the ICHEP conference taking place in Paris this summer. The first large batch of physics approvals is scheduled for this CMS Week, to be followed by four more weeks of approvals and analysis updates leading to the start of the conference in July. Several high priority analysis areas were organized into task forces to ensure sufficient coverage from the relevant detector, object, and analysis groups in the preparation of these analyses. Already some results on charged particle correlations and multiplicities in 7 TeV minimum bias collisions have been approved. Only one small detail remains before ICHEP: further integrated luminosity delivered by the LHC! Beyond the Standard Model measurements that can be done with these data, the focus changes to the search for new physics at the TeV scale and for the Higgs boson in the period after ICHEP. Particle Flow The PFT group is focusing on the ...

  20. PHYSICS

    CERN Multimedia

    C. Hill

    2012-01-01

      The period since the last CMS Bulletin has been historic for CMS Physics. The pinnacle of our physics programme was an observation of a new particle – a strong candidate for a Higgs boson – which has captured worldwide interest and made a profound impact on the very field of particle physics. At the time of the discovery announcement on 4 July, 2012, prominent signals were observed in the high-resolution H→γγ and H→ZZ(4l) modes. Corroborating excess was observed in the H→W+W– mode as well. The fermionic channel analyses (H→bb, H→ττ), however, yielded less than the Standard Model (SM) expectation. Collectively, the five channels established the signal with a significance of five standard deviations. With the exception of the diphoton channel, these analyses have all been updated in the last months and several new channels have been added. With improved analyses and more than twice the i...

  1. PHYSICS

    CERN Document Server

    L. Demortier

    Physics-wise, the CMS week in December was dominated by discussions of the analyses that will be carried out in the “next six months”, i.e. while waiting for the first LHC collisions.  As presented in December, analysis approvals based on Monte Carlo simulation were re-opened, with the caveat that for this work to be helpful to the goals of CMS, it should be carried out using the new software (CMSSW_2_X) and associated samples.  By the end of the week, the goal for the physics groups was set to be the porting of our physics commissioning methods and plans, as well as the early analyses (based an integrated luminosity in the range 10-100pb-1) into this new software. Since December, the large data samples from CMSSW_2_1 were completed. A big effort by the production group gave a significant number of events over the end-of-year break – but also gave out the first samples with the fast simulation. Meanwhile, as mentioned in December, the arrival of 2_2 meant that ...

  2. PHYSICS

    CERN Multimedia

    Darin Acosta

    2010-01-01

    The collisions last year at 900 GeV and 2.36 TeV provided the long anticipated collider data to the CMS physics groups. Quite a lot has been accomplished in a very short time. Although the delivered luminosity was small, CMS was able to publish its first physics paper (with several more in preparation), and commence the commissioning of physics objects for future analyses. Many new performance results have been approved in advance of this CMS Week. One remarkable outcome has been the amazing agreement between out-of-the-box data with simulation at these low energies so early in the commissioning of the experiment. All of this is testament to the hard work and preparation conducted beforehand by many people in CMS. These analyses could not have happened without the dedicated work of the full collaboration on building and commissioning the detector, computing, and software systems combined with the tireless work of many to collect, calibrate and understand the data and our detector. To facilitate the efficien...

  3. PHYSICS

    CERN Multimedia

    C. Hill

    2012-01-01

      2012 has started off as a very busy year for the CMS Physics Groups. Planning for the upcoming higher luminosity/higher energy (8 TeV) operation of the LHC and relatively early Rencontres de Moriond are the high-priority activities for the group at the moment. To be ready for the coming 8-TeV data, CMS has made a concerted effort to perform and publish analyses on the 5 fb−1 dataset recorded in 2011. This has resulted in the submission of 16 papers already, including nine on the search for the Higgs boson. In addition, a number of preliminary results on the 2011 dataset have been released to the public. The Exotica and SUSY groups approved several searches for new physics in January, such as searches for W′ and exotic highly ionising particles. These were highlighted at a CERN seminar given on 24th  January. Many more analyses, from all the PAGs, including the newly formed SMP (Standard Model Physics) and FSQ (Forward and Small-x QCD), were approved in February. The ...

  4. Physical activity and self-esteem: testing direct and indirect relationships associated with psychological and physical mechanisms

    Science.gov (United States)

    Zamani Sani, Seyed Hojjat; Fathirezaie, Zahra; Brand, Serge; Pühse, Uwe; Holsboer-Trachsler, Edith; Gerber, Markus; Talepasand, Siavash

    2016-01-01

    In the present study, we investigated the relationship between physical activity (PA) and self-esteem (SE), while introducing body mass index (BMI), perceived physical fitness (PPF), and body image (BI) in adults (N =264, M =38.10 years). The findings indicated that PA was directly and indirectly associated with SE. BMI predicted SE neither directly nor indirectly, but was directly associated with PPF and both directly and indirectly with BI. Furthermore, PPF was directly related to BI and SE, and a direct association was found between BI and SE. The pattern of results suggests that among a sample of adults, PA is directly and indirectly associated with SE, PPF, and BI, but not with BMI. PA, PPF, and BI appear to play an important role in SE. Accordingly, regular PA should be promoted, in particular, among adults reporting lower SE. PMID:27789950

  5. Testing a self-determination theory model of children's physical activity motivation: a cross-sectional study.

    Science.gov (United States)

    Sebire, Simon J; Jago, Russell; Fox, Kenneth R; Edwards, Mark J; Thompson, Janice L

    2013-09-26

    Understanding children's physical activity motivation, its antecedents and associations with behavior is important and can be advanced by using self-determination theory. However, research among youth is largely restricted to adolescents and studies of motivation within certain contexts (e.g., physical education). There are no measures of self-determination theory constructs (physical activity motivation or psychological need satisfaction) for use among children and no previous studies have tested a self-determination theory-based model of children's physical activity motivation. The purpose of this study was to test the reliability and validity of scores derived from scales adapted to measure self-determination theory constructs among children and test a motivational model predicting accelerometer-derived physical activity. Cross-sectional data from 462 children aged 7 to 11 years from 20 primary schools in Bristol, UK were analysed. Confirmatory factor analysis was used to examine the construct validity of adapted behavioral regulation and psychological need satisfaction scales. Structural equation modelling was used to test cross-sectional associations between psychological need satisfaction, motivation types and physical activity assessed by accelerometer. The construct validity and reliability of the motivation and psychological need satisfaction measures were supported. Structural equation modelling provided evidence for a motivational model in which psychological need satisfaction was positively associated with intrinsic and identified motivation types and intrinsic motivation was positively associated with children's minutes in moderate-to-vigorous physical activity. The study provides evidence for the psychometric properties of measures of motivation aligned with self-determination theory among children. Children's motivation that is based on enjoyment and inherent satisfaction of physical activity is associated with their objectively-assessed physical

  6. Testing a self-determination theory model of children’s physical activity motivation: a cross-sectional study

    Science.gov (United States)

    2013-01-01

    Background Understanding children’s physical activity motivation, its antecedents and associations with behavior is important and can be advanced by using self-determination theory. However, research among youth is largely restricted to adolescents and studies of motivation within certain contexts (e.g., physical education). There are no measures of self-determination theory constructs (physical activity motivation or psychological need satisfaction) for use among children and no previous studies have tested a self-determination theory-based model of children’s physical activity motivation. The purpose of this study was to test the reliability and validity of scores derived from scales adapted to measure self-determination theory constructs among children and test a motivational model predicting accelerometer-derived physical activity. Methods Cross-sectional data from 462 children aged 7 to 11 years from 20 primary schools in Bristol, UK were analysed. Confirmatory factor analysis was used to examine the construct validity of adapted behavioral regulation and psychological need satisfaction scales. Structural equation modelling was used to test cross-sectional associations between psychological need satisfaction, motivation types and physical activity assessed by accelerometer. Results The construct validity and reliability of the motivation and psychological need satisfaction measures were supported. Structural equation modelling provided evidence for a motivational model in which psychological need satisfaction was positively associated with intrinsic and identified motivation types and intrinsic motivation was positively associated with children’s minutes in moderate-to-vigorous physical activity. Conclusions The study provides evidence for the psychometric properties of measures of motivation aligned with self-determination theory among children. Children’s motivation that is based on enjoyment and inherent satisfaction of physical activity is

  7. ANALYZE THE KNOWLEDGE INQUIRY SCIENCE PHYSICS TEACHER CANDIDATES WITH ESSENCE INQUIRY SCIENCE TEST INSTRUMENT OPTIKA GEOMETRY

    Directory of Open Access Journals (Sweden)

    Wawan Bunawan

    2013-06-01

    Full Text Available The objective in this research to explore the relationship between ability of the knowledge essential features inquiry science and their reasons underlying sense of scientific inquiry for physics teacher candidates on content geometrical optics. The essential features of inquiry science are components that should arise during the learning process subject matter of geometrical optics reflectance of light on a flat mirror, the reflection of light on curved mirrors and refraction of light at the lens. Five of essential features inquiry science adopted from assessment system developed by the National Research Council. Content geometrical optics developed from an analysis of a college syllabus material. Based on the study of the essential features of inquiry and content develop the multiple choice diagnostic test three tier. Data were taken from the students who are taking courses in optics and wave from one the LPTK in North Sumatra totaled 38 students. Instruments showed Cronbach alpha reliability of 0.67 to test the essential features of inquiry science and 0.61 to there as on geometrical optics science inquiry.

  8. Wind-US Code Physical Modeling Improvements to Complement Hypersonic Testing and Evaluation

    Science.gov (United States)

    Georgiadis, Nicholas J.; Yoder, Dennis A.; Towne, Charles S.; Engblom, William A.; Bhagwandin, Vishal A.; Power, Greg D.; Lankford, Dennis W.; Nelson, Christopher C.

    2009-01-01

    This report gives an overview of physical modeling enhancements to the Wind-US flow solver which were made to improve the capabilities for simulation of hypersonic flows and the reliability of computations to complement hypersonic testing. The improvements include advanced turbulence models, a bypass transition model, a conjugate (or closely coupled to vehicle structure) conduction-convection heat transfer capability, and an upgraded high-speed combustion solver. A Mach 5 shock-wave boundary layer interaction problem is used to investigate the benefits of k- s and k-w based explicit algebraic stress turbulence models relative to linear two-equation models. The bypass transition model is validated using data from experiments for incompressible boundary layers and a Mach 7.9 cone flow. The conjugate heat transfer method is validated for a test case involving reacting H2-O2 rocket exhaust over cooled calorimeter panels. A dual-mode scramjet configuration is investigated using both a simplified 1-step kinetics mechanism and an 8-step mechanism. Additionally, variations in the turbulent Prandtl and Schmidt numbers are considered for this scramjet configuration.

  9. Influence of relative humidity and physical load during storage on dustiness of inorganic nanomaterials: implications for testing and risk assessment

    DEFF Research Database (Denmark)

    Levin, Marcus; Rojas, Elena; Vanhala, Esa

    2015-01-01

    Dustiness testing using a down-scaled EN15051 rotating drum was used to investigate the effects of storage conditions such as relative humidity and physical loading on the dustiness of five inorganic metal oxide nanostructured powder materials. The tests consisted of measurements of gravimetrical...

  10. Physical performance, body weight and BMI of young adults in Germany 2000 - 2004: results of the physical-fitness-test study.

    Science.gov (United States)

    Leyk, D; Rohde, U; Gorges, W; Ridder, D; Wunderlich, M; Dinklage, C; Sievert, A; Rüther, T; Essfeld, D

    2006-08-01

    In westernized countries the sedentary lifestyle in conjunction with a hypercaloric diet has caused an increase in the number of obese adults. Moreover, recent studies suggest that the prevalence of overweight in children increased during the last decade. However, the literature has to be interpreted with some caution since the majority of epidemiological studies examining health, fitness, and obesity rely on self-reported data rather than measurements. A further limitation is that most studies examine either physical activity or nutrition, only few deal with both aspects simultaneously. In the present study we analyzed both aspects in more than 58,000 persons aged between 17 and 26 years. All of them were applicants for the German Bundeswehr, which accepts only volunteers with school leaving certificates and a body mass index (BMI) below 30 kg . m (-2). The admitted subjects performed a Physical-Fitness-Test (PFT) consisting of 5 simple sport tests (shuttle run, sit-ups, push-ups, standing jump, Cooper test). For 23 000 subjects additional measurements of body height and body weight as well as information about their education level were available. These data were combined with the PFT results. We found large deficits in the physical fitness of young adults: More than 37 % of the participants failed to pass the PFT, with failure rates of the male volunteers increasing significantly since 2001. While the female volunteers showed virtually constant body weight and BMI, the corresponding values of men increased monotonously between the age of 17 and 26 years. Physical fitness was positively, BMI negatively correlated with education level. The present findings suggest that body weight increases and fitness decreases in non-obese young adults in Germany. Despite the correlations between BMI and physical fitness the terms "overweight" and "physically unfit" should not be regarded as synonyms.

  11. PHYSICS

    CERN Document Server

    C. Hill

    2013-01-01

    The period since the last CMS bulletin has seen the end of proton collisions at a centre-of-mass energy 8 TeV, a successful proton-lead collision run at 5 TeV/nucleon, as well as a “reference” proton run at 2.76 TeV. With these final LHC Run 1 datasets in hand, CMS Physics Analysis Groups have been busy analysing these data in preparation for the winter conferences. Moreover, despite the fact that the pp run only concluded in mid-December (and there was consequently less time to complete data analyses), CMS again made a strong showing at the Rencontres de Moriond in La Thuile (EW and QCD) where nearly 40 new results were presented. The highlight of these preliminary results was the eagerly anticipated updated studies of the properties of the Higgs boson discovered in July of last year. Meanwhile, preparations for Run 2 and physics performance studies for Phase 1 and Phase 2 upgrade scenarios are ongoing. The Higgs analysis group produced updated analyses on the full Run 1 dataset (~25 f...

  12. PHYSICS

    CERN Multimedia

    C. Hill

    2013-01-01

    In the period since the last CMS Bulletin, the LHC – and CMS – have entered LS1. During this time, CMS Physics Analysis Groups have performed more than 40 new analyses, many of which are based on the complete 8 TeV dataset delivered by the LHC in 2012 (and in some cases on the full Run 1 dataset). These results were shown at, and well received by, several high-profile conferences in the spring of 2013, including the inaugural meeting of the Large Hadron Collider    Physics Conference (LHCP) in Barcelona, and the 26th International Symposium on Lepton Photon Interactions at High Energies (LP) in San Francisco. In parallel, there have been significant developments in preparations for Run 2 of the LHC and on “future physics” studies for both Phase 1 and Phase 2 upgrades of the CMS detector. The Higgs analysis group produced five new results for LHCP including a new H-to-bb search in VBF production (HIG-13-011), ttH with H to γ&ga...

  13. PHYSICS

    CERN Multimedia

    Christopher Hill

    2013-01-01

    Since the last CMS Bulletin, the CMS Physics Analysis Groups have completed more than 70 new analyses, many of which are based on the complete Run 1 dataset. In parallel the Snowmass whitepaper on projected discovery potential of CMS for HL-LHC has been completed, while the ECFA HL-LHC future physics studies has been summarised in a report and nine published benchmark analyses. Run 1 summary studies on b-tag and jet identification, quark-gluon discrimination and boosted topologies have been documented in BTV-13-001 and JME-13-002/005/006, respectively. The new tracking alignment and performance papers are being prepared for submission as well. The Higgs analysis group produced several new results including the search for ttH with H decaying to ZZ, WW, ττ+bb (HIG-13-019/020) where an excess of ~2.5σ is observed in the like-sign di-muon channel, and new searches for high-mass Higgs bosons (HIG-13-022). Search for invisible Higgs decays have also been performed both using the associ...

  14. Facilitating knowledge of mental health nurses to undertake physical health interventions: a pre-test/post-test evaluation.

    Science.gov (United States)

    Hemingway, Steve; Clifton, Andrew; Stephenson, John; Edward, Karen-Leigh

    2014-04-01

    The aim of this project was to develop and deliver an evidence-based educational package with a physical and mental health focus to clinicians and other health care workers in mental health settings. For individuals who experience mental disorders, pharmacotherapy is often considered as a first line of treatment. However, owing to adverse drug reactions and pre-existing physical conditions, outcomes for clients/service users may be compromised. Mortality and morbidity rates of people diagnosed with a serious mental illness caused by physical health conditions do not compare favourably with the general population. This paper reports on a physical skills project that was developed in collaboration between the University of Huddersfield and South West Yorkshire Partnership Foundation Trust. Pre-post study design: five workshops were conducted in the fields of intramuscular injections, diabetes, health improvement, oral health and wound care. A total of 180 pairs of questionnaires to assess practitioner and student skills and knowledge were administered to participants before and after workshops. All workshops resulted in a statistically significant improvement in subject skills and knowledge scores (P Mental health nurses are the largest group of registered practitioners working in the mental health setting and thus need to be harnessed to make a positive contribution to the improvement of the physical health status of service users with a serious mental illness. © 2014 John Wiley & Sons Ltd.

  15. Mechanics of Ballast Compaction. Volume 3 : Field Test Results for Ballast Physical State Measurement

    Science.gov (United States)

    1982-03-01

    The important mechanical processes which influence the ballast physical state in track are tamping, crib and shoulder compaction and train traffic. Three methods of assessing physical state were used at four railroad sites to obtain needed data on th...

  16. Reliability of specific physical examination tests for the diagnosis of shoulder pathologies: a systematic review and meta-analysis.

    Science.gov (United States)

    Lange, Toni; Matthijs, Omer; Jain, Nitin B; Schmitt, Jochen; Lützner, Jörg; Kopkow, Christian

    2017-03-01

    Shoulder pain in the general population is common and to identify the aetiology of shoulder pain, history, motion and muscle testing, and physical examination tests are usually performed. The aim of this systematic review was to summarise and evaluate intrarater and inter-rater reliability of physical examination tests in the diagnosis of shoulder pathologies. A comprehensive systematic literature search was conducted using MEDLINE, EMBASE, Allied and Complementary Medicine Database (AMED) and Physiotherapy Evidence Database (PEDro) through 20 March 2015. Methodological quality was assessed using the Quality Appraisal of Reliability Studies (QAREL) tool by 2 independent reviewers. The search strategy revealed 3259 articles, of which 18 finally met the inclusion criteria. These studies evaluated the reliability of 62 test and test variations used for the specific physical examination tests for the diagnosis of shoulder pathologies. Methodological quality ranged from 2 to 7 positive criteria of the 11 items of the QAREL tool. This review identified a lack of high-quality studies evaluating inter-rater as well as intrarater reliability of specific physical examination tests for the diagnosis of shoulder pathologies. In addition, reliability measures differed between included studies hindering proper cross-study comparisons. PROSPERO CRD42014009018. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  17. Clinical relevance of the modified physical performance test versus the short physical performance battery for detecting mobility impairments in older men with peripheral arterial disease.

    Science.gov (United States)

    Addison, Odessa; Kundi, Rishi; Ryan, Alice S; Goldberg, Andrew P; Patel, Richa; Lal, Brajesh K; Prior, Steven J

    2017-08-23

    The study is to compare the Modified Physical Performance Test (MPPT) and Short Physical Performance Battery (SPPB) as metrics of mobility and function in older men with peripheral arterial disease (PAD). A total of 51 men (55-87 years) with PAD underwent functional testing including the SPPB, MPPT, Walking Impairment Questionnaire (WIQ), stair ascent, and 6-min walk distance. Individuals were grouped according to SPPB and MPPT scores as not limited on either, limited only on the MPPT, or limited on both. The MPPT identified a higher proportion of patients as being functionally limited than the SPPB (p MPPT, and not the SPPB, were subsequently confirmed to have lower function on all measures compared to those not identified as limited by either the SPPB or the MPPT (p MPPT is an appropriate measure to identify early declines in men with PAD and may identify global disability better than SPPB. Implications for rehabilitation Individuals with peripheral arterial disease have low activity levels and are at risk for a loss of independence and global disability. Early detection of decline in mobility and global function would allow for interventions before large changes in ambulatory ability or a loss of functional independence occur. This study shows the Modified Physical Performance Test may be an appropriate test to identify early decline in function in men with peripheral arterial disease.

  18. The reliability of physical examination tests for the diagnosis of anterior cruciate ligament rupture--A systematic review.

    Science.gov (United States)

    Lange, Toni; Freiberg, Alice; Dröge, Patrik; Lützner, Jörg; Schmitt, Jochen; Kopkow, Christian

    2015-06-01

    Systematic literature review. Despite their frequent application in routine care, a systematic review on the reliability of clinical examination tests to evaluate the integrity of the ACL is missing. To summarize and evaluate intra- and interrater reliability research on physical examination tests used for the diagnosis of ACL tears. A comprehensive systematic literature search was conducted in MEDLINE, EMBASE and AMED until May 30th 2013. Studies were included if they assessed the intra- and/or interrater reliability of physical examination tests for the integrity of the ACL. Methodological quality was evaluated with the Quality Appraisal of Reliability Studies (QAREL) tool by two independent reviewers. 110 hits were achieved of which seven articles finally met the inclusion criteria. These studies examined the reliability of four physical examination tests. Intrarater reliability was assessed in three studies and ranged from fair to almost perfect (Cohen's k = 0.22-1.00). Interrater reliability was assessed in all included studies and ranged from slight to almost perfect (Cohen's k = 0.02-0.81). The Lachman test is the physical tests with the highest intrarater reliability (Cohen's k = 1.00), the Lachman test performed in prone position the test with the highest interrater reliability (Cohen's k = 0.81). Included studies were partly of low methodological quality. A meta-analysis could not be performed due to the heterogeneity in study populations, reliability measures and methodological quality of included studies. Systematic investigations on the reliability of physical examination tests to assess the integrity of the ACL are scarce and of varying methodological quality. Copyright © 2014 Elsevier Ltd. All rights reserved.

  19. [EXERCISE CAPACITY AND AEROBIC PHYSICAL FITNESS ASSESSMENT AMONG ADOLESCENTS AND ADULTS WITH CYSTIC FIBROSIS BY A QUESTIONNAIRE AND EXERCISE TESTS].

    Science.gov (United States)

    Eisenstadt, Iris; Nice, Shachar; Constantini, Naama; Kerem, Eitan; Calderon-Margalit, Ronit

    2016-06-01

    Physical exercise has been shown to improve lung condition or to slow deterioration in patients with cystic fibrosis (CF) and improves their quality of life. This study analyzes the physical exercise capacity and the level of aerobic fitness of adolescents and adults with CF who are patients at the CF Center at Hadassah Medical Center Mount Scopus in Jerusalem, Israel. To assess physical exercise capacity and aerobic capacity levels among CF patients by a physical activity questionnaire in comparison to assessment by exercise tests. The participants completed a physical activity questionnaire, performed the "6 minute walk test" and a cardio-pulmonary test on a treadmill. The study group included 36 patients, ages 12-43 years, who completed a physical activity questionnaire. Most patients (92%) reported engaging in physical exercise. Most of those who exercised (61%) did so at a low intensity, as described in CF research literature. The average weekly exercise time was 177 minutes; 35 patients completed a cardio-pulmonary exercise test and a "6 minute walk test". The cardio-pulmonary exercise tests showed that 34% of the participants had 'good to excellent' aerobic fitness, 26% had 'moderate' aerobic fitness and 40% had "poor to very poor" fitness. Males achieved significantly higher maximal oxygen uptake than females, even when there were no differences in the severity of disease. Similar to the differences in the general population, these differences showed that male patients had higher aerobic fitness and exercise capacities than female CF patients. A significant correlation was found between self-reported exercise time and exercise intensity in the questionnaire and maximal oxygen uptake in the cardio-pulmonary test (r = 0.5, P < 0.01). The physical activity questionnaire had 85% sensitivity for the identification of patients with low aerobic exercise capacity and specificity of only 50%. The physical activity questionnaire showed a good correlation with the

  20. Two-dimensional models as testing ground for principles and concepts of local quantum physics

    Science.gov (United States)

    Schroer, Bert

    2006-02-01

    In the past two-dimensional models of QFT have served as theoretical laboratories for testing new concepts under mathematically controllable condition. In more recent times low-dimensional models (e.g., chiral models, factorizing models) often have been treated by special recipes in a way which sometimes led to a loss of unity of QFT. In the present work, I try to counteract this apartheid tendency by reviewing past results within the setting of the general principles of QFT. To this I add two new ideas: (1) a modular interpretation of the chiral model Diff( S)-covariance with a close connection to the recently formulated local covariance principle for QFT in curved spacetime and (2) a derivation of the chiral model temperature duality from a suitable operator formulation of the angular Wick rotation (in analogy to the Nelson-Symanzik duality in the Ostertwalder-Schrader setting) for rational chiral theories. The SL (2, Z) modular Verlinde relation is a special case of this thermal duality and (within the family of rational models) the matrix S appearing in the thermal duality relation becomes identified with the statistics character matrix S. The relevant angular "Euclideanization" is done in the setting of the Tomita-Takesaki modular formalism of operator algebras. I find it appropriate to dedicate this work to the memory of J.A. Swieca with whom I shared the interest in two-dimensional models as a testing ground for QFT for more than one decade. This is a significantly extended version of an "Encyclopedia of Mathematical Physics" contribution hep-th/0502125.

  1. Two-dimensional models as testing ground for principles and concepts of local quantum physics

    International Nuclear Information System (INIS)

    Schroer, Bert

    2005-04-01

    In the past two-dimensional models of QFT have served as theoretical laboratories for testing new concepts under mathematically controllable condition. In more recent times low-dimensional models (e.g. chiral models, factoring models) often have been treated by special recipes in a way which sometimes led to a loss of unity of QFT. In the present work I try to counteract this apartheid tendency by reviewing past results within the setting of the general principles of QFT. To this I add two new ideas: (1) a modular interpretation of the chiral model Diff(S)-covariance with a close connection to the recently formulated local covariance principle for QFT in curved spacetime and (2) a derivation of the chiral model temperature duality from a suitable operator formulation of the angular Wick rotation (in analogy to the Nelson-Symanzik duality in the Ostertwalder-Schrader setting) for rational chiral theories. The SL(2,Z) modular Verlinde relation is a special case of this thermal duality and (within the family of rational models) the matrix S appearing in the thermal duality relation becomes identified with the statistics character matrix S. The relevant angular 'Euclideanization' is done in the setting of the Tomita-Takesaki modular formalism of operator algebras. I find it appropriate to dedicate this work to the memory of J. A. Swieca with whom I shared the interest in two-dimensional models as a testing ground for QFT for more than one decade. This is a significantly extended version of an 'Encyclopedia of Mathematical Physics' contribution hep-th/0502125. (author)

  2. The 110 GHz Gyrotron System on DIII-D: Gyrotron Tests and Physics Results

    International Nuclear Information System (INIS)

    Lohr, J.; Calahan, P.; Callis, R.W.

    1999-01-01

    The DIII-D tokamak has installed a system with three gyrotrons at the 1 MW level operating at 110 GHz. Physics experiments on electron cyclotron current drive, heating, and transport have been performed. Good efficiency has been achieved both for on-axis and off-axis current drive with relevance for control of the current density profile leading to advanced regimes of tokamak operation, although there is a difference between off-axis ECCD efficiency inside and outside the magnetic axis. Heating efficiency is excellent and electron temperatures up to 10 keV have been achieved. The gyrotron system is versatile, with poloidal scan and control of the polarization of the injected rf beam. Phase correcting mirrors form a Gaussian beam and focus it into the waveguide. Both perpendicular and oblique launch into the tokamak have been used. Three different gyrotron designs are installed and therefore unique problems specific to each have been encountered, including parasitic oscillations, mode hops during modulation and polarization control problems. Two of the gyrotrons suffered damage during operations, one due to filament failure and one due to a vacuum leak. The repairs and subsequent testing will be described. The transmission system uses evacuated, windowless waveguide and the three gyrotrons have output windows of three different materials. One gyrotron uses a diamond window and generates a Gaussian beam directly. The development of the system and specific tests and results from each of the gyrotrons will be presented. The DIII-D project has committed to an upgrade of the system, which will add three gyrotrons in the 1 MW class, all using diamond output windows, to permit operation at up to ten seconds per pulse at one megawatt output for each gyrotron

  3. Two-dimensional models as testing ground for principles and concepts of local quantum physics

    International Nuclear Information System (INIS)

    Schroer, Bert

    2006-01-01

    In the past two-dimensional models of QFT have served as theoretical laboratories for testing new concepts under mathematically controllable condition. In more recent times low-dimensional models (e.g., chiral models, factorizing models) often have been treated by special recipes in a way which sometimes led to a loss of unity of QFT. In the present work, I try to counteract this apartheid tendency by reviewing past results within the setting of the general principles of QFT. To this I add two new ideas: (1) a modular interpretation of the chiral model Diff(S)-covariance with a close connection to the recently formulated local covariance principle for QFT in curved spacetime and (2) a derivation of the chiral model temperature duality from a suitable operator formulation of the angular Wick rotation (in analogy to the Nelson-Symanzik duality in the Ostertwalder-Schrader setting) for rational chiral theories. The SL (2, Z) modular Verlinde relation is a special case of this thermal duality and (within the family of rational models) the matrix S appearing in the thermal duality relation becomes identified with the statistics character matrix S. The relevant angular 'Euclideanization' is done in the setting of the Tomita-Takesaki modular formalism of operator algebras. I find it appropriate to dedicate this work to the memory of J.A. Swieca with whom I shared the interest in two-dimensional models as a testing ground for QFT for more than one decade. This is a significantly extended version of an 'Encyclopedia of Mathematical Physics' contribution hep-th/0502125

  4. Two-dimensional models as testing ground for principles and concepts of local quantum physics

    Energy Technology Data Exchange (ETDEWEB)

    Schroer, Bert [FU Berlin (Germany). Institut fuer Theoretische Physik

    2005-04-15

    In the past two-dimensional models of QFT have served as theoretical laboratories for testing new concepts under mathematically controllable condition. In more recent times low-dimensional models (e.g. chiral models, factoring models) often have been treated by special recipes in a way which sometimes led to a loss of unity of QFT. In the present work I try to counteract this apartheid tendency by reviewing past results within the setting of the general principles of QFT. To this I add two new ideas: (1) a modular interpretation of the chiral model Diff(S)-covariance with a close connection to the recently formulated local covariance principle for QFT in curved spacetime and (2) a derivation of the chiral model temperature duality from a suitable operator formulation of the angular Wick rotation (in analogy to the Nelson-Symanzik duality in the Ostertwalder-Schrader setting) for rational chiral theories. The SL(2,Z) modular Verlinde relation is a special case of this thermal duality and (within the family of rational models) the matrix S appearing in the thermal duality relation becomes identified with the statistics character matrix S. The relevant angular 'Euclideanization' is done in the setting of the Tomita-Takesaki modular formalism of operator algebras. I find it appropriate to dedicate this work to the memory of J. A. Swieca with whom I shared the interest in two-dimensional models as a testing ground for QFT for more than one decade. This is a significantly extended version of an 'Encyclopedia of Mathematical Physics' contribution hep-th/0502125. (author)

  5. Prediction of VO[subscript 2]max in Children and Adolescents Using Exercise Testing and Physical Activity Questionnaire Data

    Science.gov (United States)

    Black, Nate E.; Vehrs, Pat R.; Fellingham, Gilbert W.; George, James D.; Hager, Ron

    2016-01-01

    Purpose: The purpose of this study was to evaluate the use of a treadmill walk-jog-run exercise test previously validated in adults and physical activity questionnaire data to estimate maximum oxygen consumption (VO[subscript 2]max) in boys (n = 62) and girls (n = 66) aged 12 to 17 years old. Methods: Data were collected from Physical Activity…

  6. Watts Bar Unit 1 Cycle Zero Power Physics Tests Analysis with VERA-CS

    Energy Technology Data Exchange (ETDEWEB)

    Gehin, Jess C [ORNL; Godfrey, Andrew T [ORNL; Evans, Thomas M [ORNL; Hamilton, Steven P [ORNL; Francheschini, F. [Westinghouse Electric Company, Cranberry Township

    2014-01-01

    The Consortium for Advanced Simulation of Light Water Reactors (CASL) is developing a collection of methods and software products known as VERA, the Virtual Environment for Reactor Applications, including a core simulation capability called VERA-CS. A key milestone for this endeavor is to validate VERA against measurements from operating nuclear power reactors. The first step in validation against plant data is to determine the ability of VERA to accurately simulate the initial startup physics tests for Watts Bar Nuclear Power Station, Unit 1 (WBN1) cycle 1. VERA-CS calculations were performed with the Insilico code developed at ORNL using cross section processing from the SCALE system and the transport capabilities within the Denovo transport code using the SPN method. The calculations were performed with ENDF/B-VII.0 cross sections in 252 groups (collapsed to 23 groups for the 3D transport solution). The key results of the comparison of calculations with measurements include initial criticality, control rod worth critical configurations, control rod worth, differential boron worth, and isothermal temperature reactivity coefficient (ITC). The VERA results for these parameters show good agreement with measurements, with the exception of the ITC, which requires additional investigation. Results are also compared to those obtained with Monte Carlo methods and a current industry core simulator.

  7. A Baseline Patient Model to Support Testing of Medical Cyber-Physical Systems.

    Science.gov (United States)

    Silva, Lenardo C; Perkusich, Mirko; Almeida, Hyggo O; Perkusich, Angelo; Lima, Mateus A M; Gorgônio, Kyller C

    2015-01-01

    Medical Cyber-Physical Systems (MCPS) are currently a trending topic of research. The main challenges are related to the integration and interoperability of connected medical devices, patient safety, physiologic closed-loop control, and the verification and validation of these systems. In this paper, we focus on patient safety and MCPS validation. We present a formal patient model to be used in health care systems validation without jeopardizing the patient's health. To determine the basic patient conditions, our model considers the four main vital signs: heart rate, respiratory rate, blood pressure and body temperature. To generate the vital signs we used regression models based on statistical analysis of a clinical database. Our solution should be used as a starting point for a behavioral patient model and adapted to specific clinical scenarios. We present the modeling process of the baseline patient model and show its evaluation. The conception process may be used to build different patient models. The results show the feasibility of the proposed model as an alternative to the immediate need for clinical trials to test these medical systems.

  8. Measuring physical function in children with airway support: a pilot study using computer adaptive testing.

    Science.gov (United States)

    Dumas, Helene M; Rosen, Elaine L; Haley, Stephen M; Fragala-Pinkham, Maria A; Ni, Pengsheng; O'Brien, Jane E

    2010-01-01

    To assess the responsiveness, examine the scoring range and determine the efficiency of a multidimensional computer adaptive testing version of the Pediatric Evaluation of Disability Inventory (PEDI-MCAT) for children admitted to inpatient pulmonary rehabilitation. The PEDI-MCAT was completed by clinician report for 30 infants and children. Mean self-care and mobility admission scores were compared with discharge scores for the total group and two diagnostic sub-groups (prematurity and congenital/neurological conditions). The scoring range of the mobility and self-care scales was examined to determine placement of the scores along the overall PEDI-MCAT scale. Efficiency was determined using an internal clock and average number of items required for score generation. Mean changes for the total group and both sub-groups were significant for both self-care and mobility, except for the prematurity group's mobility scores. Effect sizes were small-to-moderate. Scores for both groups were at the low end of the scoring ranges. Average time to complete the PEDI-MCAT was 1.57 minutes. Average number of items administered was nine for self-care and 11 for mobility. The PEDI-MCAT was responsive to change in physical function, although only low-ability items were needed. The PEDI-MCAT can potentially minimize clinician burden in inpatient settings.

  9. Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. First Update. (3rd edition)

    International Nuclear Information System (INIS)

    Friedman; Sellers.

    1988-01-01

    The proposed Update is for Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, SW-846, Third Edition. Attached to the report is a list of methods included in the proposed update indicating whether the method is a new method, a partially revised method, or a totally revised method. Do not discard or replace any of the current pages in the SW-846 manual until the proposed update I package is promulgated. Until promulgation of the update package, the methods in the update package are not officially part of the SW-846 manual and thus do not carry the status of EPA-approved methods. In addition to the proposed Update, six finalized methods are included for immediate inclusion into the Third Edition of SW-846. Four methods, originally proposed October 1, 1984, will be finalized in a soon to be released rulemaking. They are, however, being submitted to subscribers for the first time in the update. These methods are 7211, 7381, 7461, and 7951. Two other methods were finalized in the 2nd Edition of SW-846. They were inadvertantly omitted from the 3rd Edition and are not being proposed as new. These methods are 7081 and 7761

  10. Measurements of Physical Parameters of White Dwarfs: A Test of the Mass–Radius Relation

    Energy Technology Data Exchange (ETDEWEB)

    Bédard, A.; Bergeron, P.; Fontaine, G., E-mail: bedard@astro.umontreal.ca, E-mail: bergeron@astro.umontreal.ca, E-mail: fontaine@astro.umontreal.ca [Département de Physique, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec H3C 3J7 (Canada)

    2017-10-10

    We present a detailed spectroscopic and photometric analysis of 219 DA and DB white dwarfs for which trigonometric parallax measurements are available. Our aim is to compare the physical parameters derived from the spectroscopic and photometric techniques, and then to test the theoretical mass–radius relation for white dwarfs using these results. The agreement between spectroscopic and photometric parameters is found to be excellent, especially for effective temperatures, showing that our model atmospheres and fitting procedures provide an accurate, internally consistent analysis. The values of surface gravity and solid angle obtained, respectively, from spectroscopy and photometry, are combined with parallax measurements in various ways to study the validity of the mass–radius relation from an empirical point of view. After a thorough examination of our results, we find that 73% and 92% of the white dwarfs are consistent within 1 σ and 2 σ confidence levels, respectively, with the predictions of the mass–radius relation, thus providing strong support to the theory of stellar degeneracy. Our analysis also allows us to identify 15 stars that are better interpreted in terms of unresolved double degenerate binaries. Atmospheric parameters for both components in these binary systems are obtained using a novel approach. We further identify a few white dwarfs that are possibly composed of an iron core rather than a carbon/oxygen core, since they are consistent with Fe-core evolutionary models.

  11. The physical education predisposition scale: Preliminary tests of reliability and validity in Australian students.

    Science.gov (United States)

    Hilland, Toni A; Brown, Trent D; Fairclough, Stuart J

    2018-02-01

    The main aim of this study was to psychometrically test the Physical Education Predisposition Scale (PEPS) with a cohort of Australian students, to assess secondary school students' perceived PE ability and PE worth. Secondary aims were to explore how the two variables were related and to investigate age and gender differences. Altogether, 266 Year 7, 8, 9 and 10 students (aged 12-16 years), from four schools within the South Eastern region of Melbourne, completed the PEPS at both time points. Principal components analysis revealed the presence of a simple two-factor structure explaining 66.9% of the variance. Factor 1 (labelled perceived PE worth) reflected enjoyment and attitude (α = .91), and factor 2 (labelled perceived PE ability) represented perceptions of competence and self-efficacy (α = .92). Significant positive correlations were observed between the two factors (r = .50-.82, P PEPS as a concise measurement tool for use in the PE setting, for both teachers and researchers.

  12. Structural Stability Monitoring of a Physical Model Test on an Underground Cavern Group during Deep Excavations Using FBG Sensors

    Directory of Open Access Journals (Sweden)

    Yong Li

    2015-08-01

    Full Text Available Fiber Bragg Grating (FBG sensors are comprehensively recognized as a structural stability monitoring device for all kinds of geo-materials by either embedding into or bonding onto the structural entities. The physical model in geotechnical engineering, which could accurately simulate the construction processes and the effects on the stability of underground caverns on the basis of satisfying the similarity principles, is an actual physical entity. Using a physical model test of underground caverns in Shuangjiangkou Hydropower Station, FBG sensors were used to determine how to model the small displacements of some key monitoring points in the large-scale physical model during excavation. In the process of building the test specimen, it is most successful to embed FBG sensors in the physical model through making an opening and adding some quick-set silicon. The experimental results show that the FBG sensor has higher measuring accuracy than other conventional sensors like electrical resistance strain gages and extensometers. The experimental results are also in good agreement with the numerical simulation results. In conclusion, FBG sensors could effectively measure small displacements of monitoring points in the whole process of the physical model test. The experimental results reveal the deformation and failure characteristics of the surrounding rock mass and make some guidance for the in situ engineering construction.

  13. Measuring evidence-based practice in physical therapy: translation, adaptation, further development, validation, and reliability test of a questionnaire.

    Science.gov (United States)

    Bernhardsson, Susanne; Larsson, Maria E H

    2013-06-01

    Evidence-based practice (EBP) and evidence-based clinical practice guidelines are becoming increasingly important in physical therapy. For the purpose of meeting the goals of designing, implementing, and evaluating strategies to facilitate the development of more EBP in primary care physical therapy, a valid and reliable questionnaire for measuring attitudes, knowledge, behavior, prerequisites, and barriers related to EBP and guidelines is needed. The 3 objectives of this study were: (1) to translate and cross-culturally adapt a questionnaire to a Swedish primary care context for the purpose of measuring various aspects of EBP and guidelines in physical therapy, (2) to further develop the questionnaire to examine more aspects of guidelines, and (3) to test the validity and reliability of the adapted Swedish questionnaire. This was an instrument development study with validity and reliability testing. A previously used questionnaire about EBP was translated and cross-culturally adapted to a Swedish primary care physical therapy context. Additional items were constructed. A draft version was pilot tested for content validity (n=10), and a revised version was tested for test-retest reliability (n=42). The percentage of agreement between the 2 tests was analyzed. The development process resulted in a first questionnaire draft containing 48 items. The validation process resulted in a second draft with acceptable content validity and consisting of 38 items. The test-retest analysis showed that the median percentage of agreement was 67% (range=41%-81%). After removal or revision of items with poor agreement, the final questionnaire included 31 items. Only face validity and content validity were tested. The final translated and adapted questionnaire was determined to have good face and content validity and acceptable reliability for measuring self-reported attitudes, knowledge, behavior, prerequisites, and barriers related to EBP and guidelines among physical therapists in

  14. PHYSICS

    CERN Multimedia

    V.Ciulli

    2011-01-01

    The main programme of the Physics Week held between 16th and 20th May was a series of topology-oriented workshops on di-leptons, di-photons, inclusive W, and all-hadronic final states. The goal of these workshops was to reach a common understanding for the set of objects (ID, cleaning...), the handling of pile-up, calibration, efficiency and purity determination, as well as to revisit critical common issues such as the trigger. Di-lepton workshop Most analysis groups use a di-lepton trigger or a combination of single and di-lepton triggers in 2011. Some groups need to collect leptons with as low PT as possible with strong isolation and identification requirements as for Higgs into WW at low mass, others with intermediate PT values as in Drell-Yan studies, or high PT as in the Exotica group. Electron and muon reconstruction, identification and isolation, was extensively described in the workshop. For electrons, VBTF selection cuts for low PT and HEEP cuts for high PT were discussed, as well as more complex d...

  15. Mass extraction container closure integrity physical testing method development for parenteral container closure systems.

    Science.gov (United States)

    Yoon, Seung-Yil; Sagi, Hemi; Goldhammer, Craig; Li, Lei

    2012-01-01

    Container closure integrity (CCI) is a critical factor to ensure that product sterility is maintained over its entire shelf life. Assuring the CCI during container closure (C/C) system qualification, routine manufacturing and stability is important. FDA guidance also encourages industry to develop a CCI physical testing method in lieu of sterility testing in a stability program. A mass extraction system has been developed to check CCI for a variety of container closure systems such as vials, syringes, and cartridges. Various types of defects (e.g., glass micropipette, laser drill, wire) were created and used to demonstrate a detection limit. Leakage, detected as mass flow in this study, changes as a function of defect length and diameter. Therefore, the morphology of defects has been examined in detail with fluid theories. This study demonstrated that a mass extraction system was able to distinguish between intact samples and samples with 2 μm defects reliably when the defect was exposed to air, water, placebo, or drug product (3 mg/mL concentration) solution. Also, it has been verified that the method was robust, and capable of determining the acceptance limit using 3σ for syringes and 6σ for vials. Sterile products must maintain their sterility over their entire shelf life. Container closure systems such as those found in syringes and vials provide a seal between rubber and glass containers. This seal must be ensured to maintain product sterility. A mass extraction system has been developed to check container closure integrity for a variety of container closure systems such as vials, syringes, and cartridges. In order to demonstrate the method's capability, various types of defects (e.g., glass micropipette, laser drill, wire) were created in syringes and vials and were tested. This study demonstrated that a mass extraction system was able to distinguish between intact samples and samples with 2 μm defects reliably when the defect was exposed to air, water

  16. Construct validity of a revised Physical Activity Scale and testing by cognitive interviewing

    DEFF Research Database (Denmark)

    Andersen, Lise G; Groenvold, Mogens; Jørgensen, Torben

    2010-01-01

    AIM: To validate the construct validity of a new version of a Physical Activity Scale (PAS 2) for measuring average weekly physical activity of sleep, work, and leisure time to determine whether a further criterion validation is justified. METHODS: The validity of responses to the questionnaire...... was evaluated by cognitive interviewing in 16 Danish men and women aged 21-70 years. Construct validity was validated in 342 men and women aged 35-66 years by assessing agreement between 24-h MET-scores obtained from average weekly physical activity measured by PAS 2 and a 24-h Physical Activity Scale (PAS 1......), previously found to overestimate physical activity. RESULTS: Cognitive interviewing revealed few problems in the questions on physical activity in different domains. No problems regarding the structure of the questionnaire were identified. The agreement between PAS 1 and PAS 2 MET-scores was high among...

  17. TESTING THE LEVEL OF PHYSICAL HEALTH OF PRESCHOOL CHILDREN TO CORRECT THE SPORTS AND RECREATION ACTIVITIES

    Directory of Open Access Journals (Sweden)

    M.N. Kuznetsova

    2011-01-01

    Full Text Available The paper presents an assessment of the physical health of children 4–7 years old, brought up in Moscow children’s educational institutions. Statistically significant positive dynamics of indicators of physical development and functional training has been showed. Introduction of corrective exercises to the recreational and educational complex for children in low-and below-average levels of motor function helps improve the motor skills. Key words: preschool children, physical health, physical development, functional fitness. (Pediatric Pharmacology. — 2011; 8 (5: 66–69.

  18. Additional prognostic value of physical examination, exercise testing, and arterial ultrasonography for coronary risk assessment in primary prevention.

    Science.gov (United States)

    Cournot, Maxime; Taraszkiewicz, Dorota; Cambou, Jean-Pierre; Galinier, Michel; Boccalon, Henri; Hanaire-Broutin, Hélène; Chamontin, Bernard; Carrié, Didier; Ferrières, Jean

    2009-11-01

    The choice of noninvasive tests used in primary prevention of cardiovascular diseases must be based on medical evidence. The aim of this study was to assess the additional prognostic value, over conventional risk factors, of physical examination, exercise testing, and arterial ultrasonography, in predicting a first coronary event. A prospective cohort study was conducted between 1996 and 2004 (n = 2,709), with follow-up in 2006 (response rate 96.6%). Participants had no history or symptoms of cardiovascular disease and had a standardized physical examination, a cardiac exercise testing, and carotid and femoral ultrasonography at baseline. Incident cases of definite coronary events were recorded during follow-up. Over the Framingham risk score, femoral bruit, positive exercise test, intima-media thickness >0.63 mm, and a femoral plaque provided significant additional information to the prediction model. The addition of the exercise test to the traditional risk factors, then the intima-media thickness and lastly the presence of femoral plaques, produces incremental increases in the area under the receiver operating characteristic curve (0.73-0.78, P = .02) and about a 50% increase in the positive predictive value (15.8%-31.4%), with no effect on the negative predictive value (96.4%-96.9%). Physical examination, exercise testing, and arterial ultrasonography provide incremental information on the risk of coronary event in asymptomatic adults. Exercise testing and femoral ultrasonography also improve the accuracy of the risk stratification.

  19. Closest Gamma Ray Burst Providing Scientists With Crucial Test for Burst Physics

    Science.gov (United States)

    2003-05-01

    says that the radio emission comes from a rapidly-expanding shock wave. This model was first proposed by Peter Meszaros, Bohdan Paczynski and Sir Martin Rees, who won the American Astronomical Society's Bruno Rossi Prize in 2000 for their work. In this standard model, as the shock wave expands outward, the emission becomes fainter, but the center of the observed emission does not change position. The cannonball model, however, proposes that the emission arises from distinct concentrations of matter shot outward from the burst. As they move farther from the burst, their motion should be detected as a change in their position in the sky. On April 3, proponents of the cannonball model predicted a specific amount of motion for GRB 030329 and suggested that the VLBA's sharp radio "vision" could detect the motion and confirm their prediction. Instead, "our observations are consistent with no motion at all," Taylor said. "This is at odds with the cannonball model -- they made a specific prediction based on their model and the observations do not bear them out," he added. The scientists' direct measurement of the size of the GRB fireball also will provide new insights into the physics behind the burst. "By directly measuring the size and the expansion rate, we can start putting some real limits on the physics involved," Taylor said. First, he said, "We already can confirm that the fireball is expanding at nearly the speed of light, as the standard model predicts. Next, once our May observations are fully analyzed, we can put limits on the energy of the burst and provide a test of the standard model." Taylor and Frail observed GRB 030329 with the VLBA on April 1 and April 6. On April 22, they used the 100-meter radio telescope in Effelsberg, Germany in addition to the VLBA. On May 19, they used the VLBA, the Very Large Array (VLA) in New Mexico, the NSF's Robert C. Byrd Green Bank Telescope in West Virginia, and the Effelsberg telescope. In addition to gamma-ray and X

  20. Future gravitational physics tests from ranging to the BepiColombo Mercury planetary orbiter

    International Nuclear Information System (INIS)

    Ashby, Neil; Bender, Peter L.; Wahr, John M.

    2007-01-01

    Milani et al. recently have published careful and fundamental studies of the accuracy with which both gravitational physics information and the solar quadrupole moment can be obtained from Earth-Mercury distance data. To complement these results, a quite different analysis method is used in the present paper. We calculate the first-order corrections to the Keplerian motion of a single planet around the Sun due to the parameterized post-Newtonian theory parameters β, γ, α 1 , α 2 , and ξ, as well as corrections due to the solar quadrupole moment J 2 and a possible secular change in GM · . The Nordtvedt parameter η that is used in tests of the strong equivalence principle also is included in this analysis. The expected accuracies are given for 1 yr, 2 yr, and 8 yr mission durations, assuming that the planet-planet and asteroid-planet perturbations are accurately known. The ''modified worst-case'' error analysis method that we use is quite different from the usual covariance analysis method based on assumed uncorrelated random errors, plus a bias that is fixed or that changes in a prescribed way. We believe this is appropriate because systematic measurement errors are likely to be the main limitation on the accuracy of the results. Our final estimated uncertainties are one-third of the errors that would result if a 4.5-cm rms systematic error had the most damaging possible variation with time. We discuss the resulting uncertainties for several different subsets of orbital and relativity parameters

  1. Factors Predicting the Physical Activity Behavior of Female Adolescents: A Test of the Health Promotion Model

    Directory of Open Access Journals (Sweden)

    Hashem Mohamadian

    2014-01-01

    Full Text Available ObjectivesPhysical activity behavior begins to decline during adolescence and continues to decrease throughout young adulthood. This study aims to explain factors that influence physical activity behavior in a sample of female adolescents using a health promotion model framework.MethodsThis cross-sectional survey was used to explore physical activity behavior among a sample of female adolescents. Participants completed measures of physical activity, perceived self-efficacy, self-esteem, social support, perceived barriers, and perceived affect. Interactions among the variables were examined using path analysis within a covariance modeling framework.ResultsThe final model accounted for an R2 value of 0.52 for physical activity and offered a good model-data fit. The results indicated that physical activity was predicted by self-esteem (β=0.46, p<0.001, perceived self-efficacy (β=0.40, p<0.001, social support (β=0.24, p<0.001, perceived barriers (β=-0.19, p<0.001, and perceived affect (β=0.17, p<0.001.ConclusionsThe findings of this study showed that the health promotion model was useful to predict physical activity behavior among the Iranian female adolescents. Information related to the predictors of physical activity behavior will help researchers plan more tailored culturally relevant health promotion interventions for this population.

  2. Testing principle working mechanisms of the health action process approach for subjective physical age groups.

    Science.gov (United States)

    Wienert, Julian; Kuhlmann, Tim; Fink, Sebastian; Hambrecht, Rainer; Lippke, Sonia

    2016-01-01

    This study investigated differences in social-cognitive predictors and self-regulatory planning, as proposed by the health action process approach (HAPA), across three different subjective physical age groups for physical activity. With a cross-sectional design, 521 participants across the chronological age span from 25 to 86 years (M = 48.79; SD = 12.66) were separated into three groups: those who feel physically younger than they are in terms of chronological age, the same perceived and chronological age, and feeling physically older compared to their chronological age. Participants were assessed regarding their perceived vulnerability, outcome expectancies, general intentions, planning, self-efficacy, and stages of physical activity (non-intenders, intenders, and actors). Data were analysed via mean comparison and multigroup structural equation modelling. Mean differences for all but one construct were eminent in all groups, generally showing that those feeling physically younger also report better social-cognitive predictors of physical activity (e.g. lower perceived vulnerability) in comparison to those who feel the same age or older. The model showed that basic working mechanisms of the HAPA can be applied to all groups. With that, the results provide for the first time evidence that principle working mechanism of the HAPA can be applied to all subjective physical age groups. These may be used to tailor health promoting interventions according to participants' needs as a more suitable proxy than chronological age.

  3. Effects of Two Different Types of Physics Learning on the Results of CLASS Test

    Science.gov (United States)

    Marusic, Mirko; Slisko, Josip

    2012-01-01

    During a one-semester-long research project with high school students, we deployed and gauged efficiency of two different reform teaching methods: reading, presenting, and questioning (RPQ) and experimenting and discussion (ED). In this paper we report on changes in students' attitudes and beliefs about physics and learning physics. We used the…

  4. Social and environmental determinants of physical activity in urban parks: Testing a neighborhood disorder model.

    Science.gov (United States)

    Douglas, Jason A; Briones, Maya D; Bauer, Eliane Z; Trujillo, Melissa; Lopez, Melissa; Subica, Andrew M

    2018-01-31

    The current study examined the nexus of neighborhood disorder-in the form of physical disorder (e.g., broken glass and vandalism) and social disorder (e.g., public drinking and lewd conduct)-and physical activity (PA) in urban public parks to inform public policy addressing chronic disease in at-risk populations. Five hundred and twenty-two unique observations were conducted in 22 public parks from March to September 2016. The study utilized the System for Observing Play and Recreation in Communities (SOPARC) to document age, gender, ethnicity, and PA level of park users. The Physical Activity Resource Assessment (PARA) was used to document observed physical and social disorder incivilities in public parks included in the current study. Males, adults, and Latina/os accounted for the largest number of park users, respectively. Significant PA differences were observed across gender, age, and ethnicity. Multiple linear regression controlling for gender, age, and ethnicity found physical disorder, but not social disorder, generally predicted PA reductions. While it has been demonstrated that physical disorder predicts PA reductions in low-income communities of color, this is the first study to reveal that physical disorder may lead to decreased PA in urban public parks. Thus, remediation of public park incivilities characterized by physical disorder, paired with community outreach, may lead to increased PA in at-risk communities. Copyright © 2018 Elsevier Inc. All rights reserved.

  5. Comparison of Physical Fitness Parameters with EUROFIT Test Battery of Male Adolescent Soccer Players and Sedentary Counterparts

    Directory of Open Access Journals (Sweden)

    Özgür ERİKOĞLU

    2015-09-01

    Full Text Available The aim of this study was to compare physical fitness parameters of male adolescent soccer players and sedentary counterparts. A total of 26 male adolescents participated in this study voluntarily: Active soccer players (n: 3, age x : 13,00 ± 0,00 and sedentary counterparts (n: 13, age x :12,92 ± 0,75. The EUROFIT test battery was used to determine physical fitness. The test battery includes body height and weight measurements, touching the discs, flamingo balan ce, throwing health ball, vertical jumping, sit and reach, sit - up for 30 s, 20 meter sprint run, and 20 meter shuttle run tests. Data were analyzed by Mann Whitney U test. Significance was defined as p.05. In conclusion, children who do sports are more successful on most of the fitness parameters than sedentary children.

  6. International consensus on the most useful physical examination tests used by physiotherapists for patients with headache

    DEFF Research Database (Denmark)

    Luedtke, K; Boissonnault, W; Caspersen, Nina

    2016-01-01

    considered clinically useful: manual joint palpation, the cranio-cervical flexion test, the cervical flexion-rotation test, active range of cervical movement, head forward position, trigger point palpation, muscle tests of the shoulder girdle, passive physiological intervertebral movements, reproduction...

  7. Perceived Physical Availability of Alcohol at Work and Workplace Alcohol Use and Impairment: Testing a Structural Model

    Science.gov (United States)

    Frone, Michael R.; Trinidad, Jonathan R.

    2014-01-01

    This study develops and tests a new conceptual model of perceived physical availability of alcohol at work that provides unique insight into three dimensions of workplace physical availability of alcohol and their direct and indirect relations to workplace alcohol use and impairment. Data were obtained from a national probability sample of 2,727 U.S. workers. The results support the proposed conceptual model and provide empirical support for a positive relation of perceived physical availability of alcohol at work to workplace alcohol use and two dimensions of workplace impairment (workplace intoxication and workplace hangover). Ultimately, the findings suggest that perceived physical availability of alcohol at work is a risk factor for alcohol use and impairment during the workday, and that this relation is more complex than previously hypothesized. PMID:25243831

  8. Thinking on substitution of 20 meter shuttle running for 1000 meter running in school physical fitness testing project

    Directory of Open Access Journals (Sweden)

    ZHANG Xiaoxian

    2013-10-01

    Full Text Available Recently,the issue about "substitution of 20 meter shuttle running for 1000 meter running" has aroused great concern and intense discussion. It includes some critical voice and misreading of this event. Through combing and rational analysis of the relevant media reports,the author believes that 20 meter shuttle running and 1000 meter running have certain differences in the test objects,methods and indicators.This reference of "substitution" is not reasonable. There are both common value and significance on them,either as a physical fitness test method or as a means of physical exercises. Therefore,it is suggested that exploring the correspondence points between both of them and their application in physical education practice through theoretical and practical study.

  9. Testing a Longitudinal Integrated Self-Efficacy and Self-Determination Theory Model for Physical Activity Post-Cardiac Rehabilitation.

    Science.gov (United States)

    Sweet, Shane N; Fortier, Michelle S; Strachan, Shaelyn M; Blanchard, Chris M; Boulay, Pierre

    2014-01-13

    Self-determination theory and self-efficacy theory are prominent theories in the physical activity literature, and studies have begun integrating their concepts. Sweet, Fortier, Strachan and Blanchard (2012) have integrated these two theories in a cross-sectional study. Therefore, this study sought to test a longitudinal integrated model to predict physical activity at the end of a 4-month cardiac rehabilitation program based on theory, research and Sweet et al.'s cross-sectional model. Participants from two cardiac rehabilitation programs (N=109) answered validated self-report questionnaires at baseline, two and four months. Data were analyzed using Amos to assess the path analysis and model fit. Prior to integration, perceived competence and self-efficacy were combined, and labeled as confidence. After controlling for 2-month physical activity and cardiac rehabilitation site, no motivational variables significantly predicted residual change in 4-month physical activity. Although confidence at two months did not predict residual change in 4-month physical activity, it had a strong positive relationship with 2-month physical activity (β=0.30, Pmodel retained good fit indices. In conclusion, results diverged from theoretical predictions of physical activity, but self-determination and self-efficacy theory were still partially supported. Because the model had good fit, this study demonstrated that theoretical integration is feasible.

  10. The accuracy of physical diagnostic tests for assessing meniscal lesions of the knee: a meta-analysis.

    NARCIS (Netherlands)

    Scholten, R.J.P.M.; Devillé, W.L.J.M.; Opstelten, W.; Bijl, D.; Plas, C.G. van der; Bouter, L.M.

    2001-01-01

    OBJECTIVE. Our systematic review summarizes the evidence about the accuracy of physical diagnostic tests for assessing meniscal lesions of the knee. SEARCH STRATEGY. We performed a literature search of MEDLINE (1966-1999) and EMBASE 1988- 1999) with additional reference tracking. SELECTION

  11. Parent and Peer Predictors of Physical Dating Violence Perpetration in Early Adolescence: Tests of Moderation and Gender Differences

    Science.gov (United States)

    Miller, Shari; Gorman-Smith, Deborah; Sullivan, Terri; Orpinas, Pamela; Simon, Thomas R.

    2009-01-01

    This study examined parenting and peer predictors of physical dating violence perpetration during early adolescence and tested moderation among these predictors and gender. Participants were 2,824 ethnically diverse sixth-grade students with a recent boyfriend/girlfriend who was part of a multisite, longitudinal investigation of the development…

  12. Perceived Teaching Behaviors and Self-Determined Motivation in Physical Education: A Test of Self-Determination Theory

    Science.gov (United States)

    Koka, Andre; Hagger, Martin S.

    2010-01-01

    In the present study, we tested the effects of specific dimensions of perceived teaching behaviors on students' self-determined motivation in physical education. In accordance with the tenets of self-determination theory (Deci & Ryan, 1985, 2000), we expected the psychological needs for competence, autonomy, and relatedness would mediate these…

  13. Differences in physical-fitness test scores between actively and passively recruited older adults : Consequences for norm-based classification

    NARCIS (Netherlands)

    van Heuvelen, M.J.G.; Stevens, M.; Kempen, G.I.J.M.

    This study investigated differences in physical-fitness test scores between actively and passively recruited older adults and the consequences thereof for norm-based classification of individuals. Walking endurance, grip strength, hip flexibility, balance, manual dexterity, and reaction time were

  14. Physics-based modeling of live wildland fuel ignition experiments in the Forced Ignition and Flame Spread Test apparatus

    Science.gov (United States)

    C. Anand; B. Shotorban; S. Mahalingam; S. McAllister; D. R. Weise

    2017-01-01

    A computational study was performed to improve our understanding of the ignition of live fuel in the forced ignition and flame spread test apparatus, a setup where the impact of the heating mode is investigated by subjecting the fuel to forced convection and radiation. An improvement was first made in the physics-based model WFDS where the fuel is treated as fixed...

  15. The EORTC computer-adaptive tests measuring physical functioning and fatigue exhibited high levels of measurement precision and efficiency

    NARCIS (Netherlands)

    Petersen, M.A.; Aaronson, N.K.; Arraras, J.I.; Chie, W.C.; Conroy, T.; Costantini, A.; Giesinger, J.M.; Holzner, B.; King, M.T.; Singer, S.; Velikova, G.; de Leeuw, I.M.; Young, T.; Groenvold, M.

    2013-01-01

    Objectives: The European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Group is developing a computer-adaptive test (CAT) version of the EORTC Quality of Life Questionnaire (QLQ-C30). We evaluated the measurement properties of the CAT versions of physical functioning (PF)

  16. The EORTC computer-adaptive tests measuring physical functioning and fatigue exhibited high levels of measurement precision and efficiency

    DEFF Research Database (Denmark)

    Petersen, Morten Aa; Aaronson, Neil K; Arraras, Juan I

    2013-01-01

    The European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Group is developing a computer-adaptive test (CAT) version of the EORTC Quality of Life Questionnaire (QLQ-C30). We evaluated the measurement properties of the CAT versions of physical functioning (PF...

  17. The EORTC computer-adaptive tests measuring physical functioning and fatigue exhibited high levels of measurement precision and efficiency

    NARCIS (Netherlands)

    Petersen, M.A.; Aaronson, N.K.; Arraras, J.I.; Chie, W.C.; Conroy, T.; Constantini, A.; Giesinger, J.M.; Holzner, B.; King, M.T.; Singer, S.; Velikova, G.; Verdonck-de Leeuw, I.M.; Young, T.; Groenvold, M.

    2013-01-01

    Objectives The European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Group is developing a computer-adaptive test (CAT) version of the EORTC Quality of Life Questionnaire (QLQ-C30). We evaluated the measurement properties of the CAT versions of physical functioning (PF)

  18. The champagne toast position isolates the supraspinatus better than the Jobe test: an electromyographic study of shoulder physical examination tests.

    Science.gov (United States)

    Chalmers, Peter N; Cvetanovich, Gregory L; Kupfer, Noam; Wimmer, Markus A; Verma, Nikhil N; Cole, Brian J; Romeo, Anthony A; Nicholson, Gregory P

    2016-02-01

    While Jobe's test is widely used, it does not isolate supraspinatus activity. Our purpose was to examine the electromyographic (EMG) activity within the supraspinatus and deltoid with resisted abduction to determine the shoulder position that best isolates the activity of the supraspinatus. We performed EMG analysis of the supraspinatus, anterior head of the deltoid, and middle head of the deltoid in 10 normal volunteers. We measured EMG activity during resisted shoulder abduction in the scapular plane to both manual resistance and a standardized load in varying degrees of abduction and rotation. To determine which position best isolates supraspinatus activity, the ratio of supraspinatus to deltoid activity (S:D) was calculated for each position. Results were analyzed with a repeated-measures analysis of variance with Bonferroni correction. The posterior deltoid was excluded as it serves mostly to extend and externally rotate. Our study confirmed Jobe's findings of maximal supraspinatus activity at 90° of abduction. However, decreasing abduction significantly increased S:D for both resisted manual testing and testing against a standardized load (P = .002 and .001, respectively). The greatest S:D ratio (4.6 ± 3.4 for standardized load testing) was seen at the "champagne toast" position, i.e., 30° of abduction, mild external rotation, 30° of flexion, and 90° of elbow flexion. The smallest ratio (0.8 ± 0.6) was seen at Jobe's position. Testing of abduction strength in the champagne toast position, i.e., 30° of abduction, mild external rotation, and 30° of flexion, better isolates the activity of the supraspinatus from the deltoid than Jobe's "empty can" position. Copyright © 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.

  19. Which physical examination tests provide clinicians with the most value when examining the shoulder? Update of a systematic review with meta-analysis of individual tests.

    Science.gov (United States)

    Hegedus, Eric J; Goode, Adam P; Cook, Chad E; Michener, Lori; Myer, Cortney A; Myer, Daniel M; Wright, Alexis A

    2012-11-01

    To update our previously published systematic review and meta-analysis by subjecting the literature on shoulder physical examination (ShPE) to careful analysis in order to determine each tests clinical utility. This review is an update of previous work, therefore the terms in the Medline and CINAHL search strategies remained the same with the exception that the search was confined to the dates November, 2006 through to February, 2012. The previous study dates were 1966 - October, 2006. Further, the original search was expanded, without date restrictions, to include two new databases: EMBASE and the Cochrane Library. The Quality Assessment of Diagnostic Accuracy Studies, version 2 (QUADAS 2) tool was used to critique the quality of each new paper. Where appropriate, data from the prior review and this review were combined to perform meta-analysis using the updated hierarchical summary receiver operating characteristic and bivariate models. Since the publication of the 2008 review, 32 additional studies were identified and critiqued. For subacromial impingement, the meta-analysis revealed that the pooled sensitivity and specificity for the Neer test was 72% and 60%, respectively, for the Hawkins-Kennedy test was 79% and 59%, respectively, and for the painful arc was 53% and 76%, respectively. Also from the meta-analysis, regarding superior labral anterior to posterior (SLAP) tears, the test with the best sensitivity (52%) was the relocation test; the test with the best specificity (95%) was Yergason's test; and the test with the best positive likelihood ratio (2.81) was the compression-rotation test. Regarding new (to this series of reviews) ShPE tests, where meta-analysis was not possible because of lack of sufficient studies or heterogeneity between studies, there are some individual tests that warrant further investigation. A highly specific test (specificity >80%, LR+ ≥ 5.0) from a low bias study is the passive distraction test for a SLAP lesion. This test may

  20. Physical examination tests for assessing a torn meniscus in the knee: a systematic review with meta-analysis.

    Science.gov (United States)

    Hegedus, Eric J; Cook, Chad; Hasselblad, Victor; Goode, Adam; McCrory, Douglas C

    2007-09-01

    Systematic review and meta-analysis. To identify, analyze, and synthesize the literature to determine which physical examination tests, if any, accurately diagnose a torn tibial meniscus. Knee pain has a lifetime prevalence of up to 45%, and as many as 31% of individuals with knee pain will consult a general practitioner. Roughly 5% of these individuals will undergo a tibial meniscectomy and many more will undergo partial meniscectomy or meniscus repair. Determining which of these individuals is appropriate for surgical consult depends on clinical examination findings. We searched MEDLINE, CINAHL, and SPORTDiscus from1966 to August 2006 and extracted all English- and German-language studies that reported the diagnostic accuracy of individual physical examination tests for a torn meniscus. We retrieved data regarding true positives, false positives, true negatives, and false negatives to create 2-by-2 tables for each article and test. Like tests were then subjected to meta-analysis and subanalysis. Cochran Q test and the 12 statistic were used to examine for the presence of heterogeneity and the extent of the effect of heterogeneity, respectively. A qualitative analysis was also performed using the QUADAS tool. Eighteen studies qualified for the final analyses. Three physical examination tests (McMurray's, Apley's, and joint line tenderness) were examined in more than 7 studies and had enough data to consider meta-analysis. However, study results were heterogeneous. Pooled sensitivity and specificity were 70% and 71% for McMurray's, 60% and 70% for Apley's, and 63% and 77% for joint line tenderness. Large between-study differences could not be explained by prevalence, study quality, or how well an index test was described. No single physical examination test appears to accurately diagnose a torn tibial meniscus and the value of history plus physical examination is unknown. Differences between studies in diagnostic performance remain unexplained, presumably due to

  1. The physical therapy profile questionnaire (PTPQ): development, validation and pilot testing

    OpenAIRE

    Grimmer-Somers Karen; Dizon Janine Margarita R; Kumar Saravana

    2011-01-01

    Abstract Background Country by country similarities and differences in physical therapy practice exists. Therefore, before updates in practice can be provided, such as trainings in evidence-based practice, it is necessary to identify the profile and nature of practice in a given country or setting. Following a search of the international literature, no appropriate tool was identified to collect and establish data to create the profile of physical therapy practice in the Philippines. We theref...

  2. Special tests and destructive physical analyses as used by the Aerospace Corporation with nickel-hydrogen cells

    Science.gov (United States)

    Zimmerman, A. H.; Quinzio, M. V.; Thaller, L. H.

    1992-01-01

    The destructive physical analysis (DPA) of electrochemical devices is an important part of the overall test. Specific tests were developed to investigate the degradation mode or the failure mechanism that surfaces during the course of a cell being assembled, acceptance tested, and life-cycle tested. The tests that have been developed are peculiar to the cell chemistry under investigation. Tests are often developed by an individual or group of researchers as a result of their particular interest in an unresolved failure mechanism or degradation mode. A series of production, operational, and storage issues that were addressed by the Electrochemistry Group at The Aerospace Corporation are addressed. As a result of these investigations, as well as associated research studies carried out to develop a clearer understanding of the nickel oxyhydroxide electrode, a series of unique and useful specialized tests were developed. Some of these special tests were assembled to describe the methods that were found to be particularly useful in resolving a wide spectrum of manufacturing, operational, and storage issues related to nickel-hydrogen cells. The general methodology of these tests is given here with references listed to provide the reader with a more detailed understanding of the tests. The tests are classified according to the sequencing, starting with the impregnation of the nickel plaque material and culminating with the storage of completed cells. The details of the wet chemical procedures that were found to be useful because of their accuracy and reproducibility are given. The equations used to make the appropriate calculations are listed.

  3. Feasibility and Reliability of Tests Measuring Health-Related Physical Fitness in Children with Moderate to Severe Levels of Intellectual Disability

    Science.gov (United States)

    Wouters, Marieke; van der Zanden, Anna M.; Evenhuis, Heleen M.; Hilgenkamp, Thessa I. M.

    2017-01-01

    Physical fitness is an important marker for health. In this study we investigated the feasibility and reliability of health-related physical fitness tests in children with moderate to severe levels of intellectual disability. Thirty-nine children (2-18 yrs) performed tests for muscular strength and endurance, the modified 6-minute walk test (6mwt)…

  4. Testing a Longitudinal Integrated Self-Efficacy and Self-Determination Theory Model for Physical Activity Post-Cardiac Rehabilitation

    Science.gov (United States)

    Sweet, Shane N.; Fortier, Michelle S.; Strachan, Shaelyn M.; Blanchard, Chris M.; Boulay, Pierre

    2014-01-01

    Self-determination theory and self-efficacy theory are prominent theories in the physical activity literature, and studies have begun integrating their concepts. Sweet, Fortier, Strachan and Blanchard (2012) have integrated these two theories in a cross-sectional study. Therefore, this study sought to test a longitudinal integrated model to predict physical activity at the end of a 4-month cardiac rehabilitation program based on theory, research and Sweet et al.’s cross-sectional model. Participants from two cardiac rehabilitation programs (N=109) answered validated self-report questionnaires at baseline, two and four months. Data were analyzed using Amos to assess the path analysis and model fit. Prior to integration, perceived competence and self-efficacy were combined, and labeled as confidence. After controlling for 2-month physical activity and cardiac rehabilitation site, no motivational variables significantly predicted residual change in 4-month physical activity. Although confidence at two months did not predict residual change in 4-month physical activity, it had a strong positive relationship with 2-month physical activity (β=0.30, Pphysical activity, but self-determination and self-efficacy theory were still partially supported. Because the model had good fit, this study demonstrated that theoretical integration is feasible. PMID:26973926

  5. Does the six-minute walk test measure walking performance or physical fitness in persons with multiple sclerosis?

    Science.gov (United States)

    Sandroff, Brian M; Pilutti, Lara A; Motl, Robert W

    2015-01-01

    There is psychometric evidence that supports the six-minute walk (6MW) as a measure of walking performance, whereas other psychometric data support it as a submaximal measure of physical fitness in persons with MS. The current cross-sectional study compared measures of walking performance and physical fitness as head-to-head predictors of 6MW distance in a sample of persons with MS across the disability spectrum. All participants completed the 6MW test, as well as other measures of walking performance (i.e., timed-25 foot walk, gait velocity captured by a GaitRite electronic walkway) and physical fitness (i.e., peak aerobic capacity, lower limb muscular strength). 6MW distance was strongly associated with measures of walking performance and physical fitness, though the correlations were significantly stronger for measures of walking performance than physical fitness (z >  4.04, p   0.85), and measures of physical fitness explained minimal variance in 6MW distance over-and-above that of measures of walking performance (ΔR2 fitness in MS.

  6. Development of test stand for experimental investigation of chemical and physical phenomena in Liquid Rocket Engine

    Directory of Open Access Journals (Sweden)

    Emerson Andrade Santos

    2011-05-01

    Full Text Available The main objective of this work was to present the specification of an experimental firing test stand for liquid rocket engines (LRE and develop a program for control and acquisition of data. It provides conditions to test rocket engines with thrust from 50 to 100 kgf. A methodology for laboratory work implementation using information technology, which will allow the automatic and remote functioning of the test stand, permits users to input the necessary data to conduct tests safely, achieve accurate measurements and obtain reliable results. The control of propellant mass flow rates by pressure regulators and other system valves, as well as the test stand data acquisition, are carried out automatically through LabVIEW commercial software. The test stand program is a readable, scalable and maintainable code. The test stand design and its development represent the state of art of experimental apparatus in LRE testing.

  7. Development of test stand for experimental investigation of chemical and physical phenomena in Liquid Rocket Engine

    OpenAIRE

    Emerson Andrade Santos; Wilton Fernandes Alves; André Neves Almeida Prado; Cristiane Aparecida Martins

    2011-01-01

    Abstract The main objective of this work was to present the specification of an experimental firing test stand for liquid rocket engines (LRE) and develop a program for control and acquisition of data. It provides conditions to test rocket engines with thrust from 50 to 100 kgf. A methodology for laboratory work implementation using information technology, which will allow the automatic and remote functioning of the test stand, permits users to input the necessary data to conduct tests safely...

  8. Comparison of Physical Therapy Anatomy Performance and Anxiety Scores in Timed and Untimed Practical Tests

    Science.gov (United States)

    Schwartz, Sarah M.; Evans, Cathy; Agur, Anne M.R.

    2015-01-01

    Students in health care professional programs face many stressful tests that determine successful completion of their program. Test anxiety during these high stakes examinations can affect working memory and lead to poor outcomes. Methods of decreasing test anxiety include lengthening the time available to complete examinations or evaluating…

  9. Preservice Physical Education Teacher Attitudes toward Fitness Tests and the Factors Influencing Their Attitudes.

    Science.gov (United States)

    Keating, Xiaofen Deng; Silverman, Stephen; Kulinna, Pamela Hodges

    2002-01-01

    Examined preservice teachers' attitudes toward fitness tests in schools. Respondents had only slightly positive attitudes toward fitness tests and did not consider them very important or useful. These responses persisted as students' professional preparation increased. Previous experience with fitness tests influenced their attitudes, while age,…

  10. Testing a workplace physical activity intervention: a cluster randomized controlled trial.

    Science.gov (United States)

    McEachan, Rosemary R C; Lawton, Rebecca J; Jackson, Cath; Conner, Mark; Meads, David M; West, Robert M

    2011-04-11

    Increased physical activity levels benefit both an individuals' health and productivity at work. The purpose of the current study was to explore the impact and cost-effectiveness of a workplace physical activity intervention designed to increase physical activity levels. A total of 1260 participants from 44 UK worksites (based within 5 organizations) were recruited to a cluster randomized controlled trial with worksites randomly allocated to an intervention or control condition. Measurement of physical activity and other variables occurred at baseline, and at 0 months, 3 months and 9 months post-intervention. Health outcomes were measured during a 30 minute health check conducted in worksites at baseline and 9 months post intervention. The intervention consisted of a 3 month tool-kit of activities targeting components of the Theory of Planned Behavior, delivered in-house by nominated facilitators. Self-reported physical activity (measured using the IPAQ short-form) and health outcomes were assessed. Multilevel modelling found no significant effect of the intervention on MET minutes of activity (from the IPAQ) at any of the follow-up time points controlling for baseline activity. However, the intervention did significantly reduce systolic blood pressure (B=-1.79 mm/Hg) and resting heart rate (B=-2.08 beats) and significantly increased body mass index (B=.18 units) compared to control. The intervention was found not to be cost-effective, however the substantial variability round this estimate suggested that further research is warranted. The current study found mixed support for this worksite physical activity intervention. The paper discusses some of the tensions involved in conducting rigorous evaluations of large-scale randomized controlled trials in real-world settings. © 2011 McEachan et al; licensee BioMed Central Ltd.

  11. Diagnostic Validity of Combining History Elements and Physical Examination Tests for Traumatic and Degenerative Symptomatic Meniscal Tears.

    Science.gov (United States)

    Décary, Simon; Fallaha, Michel; Frémont, Pierre; Martel-Pelletier, Johanne; Pelletier, Jean-Pierre; Feldman, Debbie E; Sylvestre, Marie-Pierre; Vendittoli, Pascal-André; Desmeules, François

    2017-10-27

    The current approach to the clinical diagnosis of traumatic and degenerative symptomatic meniscal tears (SMTs) proposes combining history elements and physical examination tests without systematic prescription of imaging investigations, yet the evidence to support this diagnostic approach is scarce. To assess the validity of diagnostic clusters combining history elements and physical examination tests to diagnose or exclude traumatic and degenerative SMT compared with other knee disorders. Prospective diagnostic accuracy study. Patients were recruited from 2 orthopedic clinics, 2 family medicine clinics, and from a university community. A total of 279 consecutive patients who underwent consultation for a new knee complaint. Each patient was assessed independently by 2 evaluators. History elements and standardized physical examination tests performed by a physiotherapist were compared with the reference standard: an expert physicians' composite diagnosis including a clinical examination and confirmatory magnetic resonance imaging. Participating expert physicians were orthopedic surgeons (n = 3) or sport medicine physicians (n = 2). Penalized logistic regression (least absolute shrinkage and selection operator) was used to identify history elements and physical examination tests associated with the diagnosis of SMT and recursive partitioning was used to develop diagnostic clusters. Diagnostic accuracy measures were calculated including sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios (LR+/-) with associated 95% confidence intervals (CIs). Eighty patients had a diagnosis of SMT (28.7%), including 35 traumatic tears and 45 degenerative tears. The combination a history of trauma during a pivot, medial knee pain location, and a positive medial joint line tenderness test was able to diagnose (LR+ = 8.9; 95% CI 6.1-13.1) or exclude (LR- = 0.10; 95% CI 0.03-0.28) a traumatic SMT. Combining a history of

  12. A true 3D physical model test study on the stability of an underground cavern group in Shuangjiangkou Hydropower Station

    Science.gov (United States)

    Zhu, Weishen; Zhang, Lei; Li, Yong; Zhang, Qianbing

    2010-03-01

    Taking the underground caverns of Shuangjiangkou (SJK) Hydropower Station as an engineering background, a largescale true 3D physical model test is performed to study the stability of the enclosing rock masses, including the analogous material, the steel structure frame, fabrications of rock bolts and cables, development of the measuring techniques, fabrication of the physical model, excavations and the overload test. The developed steel structure can simulate the complicated circumstances just like high in-situ stress and high overburden depth. It also can apply the true 3D loading on six surfaces of the physical model. Many combinational ball sliding blocks are installed between model surface and the structural wall to reduce the friction between the contact surfaces. During the model construction, precast blocks are used and monitoring holes are predefined before the analogous material is piled up. A unique grouting technique and prestressed cables are adopted in the model test. A digital photogrammetric technique, displacement sensing bars based on Fiber Bragg Gratings (FBG) technology, and mini extensometers are developed and adopted for measuring the deformation in the process of excavations. The overload tests are accomplished under the conditions of different overburden depths. The results of this research will make certain guiding significance to the practical engineering.

  13. Specification of the Advanced Burner Test Reactor Multi-Physics Coupling Demonstration Problem

    Energy Technology Data Exchange (ETDEWEB)

    Shemon, E. R. [Argonne National Lab. (ANL), Argonne, IL (United States); Grudzinski, J. J. [Argonne National Lab. (ANL), Argonne, IL (United States); Lee, C. H. [Argonne National Lab. (ANL), Argonne, IL (United States); Thomas, J. W. [Argonne National Lab. (ANL), Argonne, IL (United States); Yu, Y. Q. [Argonne National Lab. (ANL), Argonne, IL (United States)

    2015-12-21

    This document specifies the multi-physics nuclear reactor demonstration problem using the SHARP software package developed by NEAMS. The SHARP toolset simulates the key coupled physics phenomena inside a nuclear reactor. The PROTEUS neutronics code models the neutron transport within the system, the Nek5000 computational fluid dynamics code models the fluid flow and heat transfer, and the DIABLO structural mechanics code models structural and mechanical deformation. The three codes are coupled to the MOAB mesh framework which allows feedback from neutronics, fluid mechanics, and mechanical deformation in a compatible format.

  14. B-supergiants in IC1613: testing low-Z massive star physics and evolution

    Science.gov (United States)

    Camacho, Inés; García, Miriam; Urbaneja, Miguel A.; Herrero, Artemio

    2017-11-01

    The physical processes taking place in massive stars during their life and death are highly dependent on the metallicity (Z) of their parent cloud. Observations of these stars in low-Z nearby galaxies are crucial to understand these processes. IC1613 is the nearest Local Group galaxy with ongoing star formation and O-abundance lower than the SMC, although UV spectroscopy suggests it is not so metal poor. We performed a spectral analysis of early B-type stars in the galaxy, obtaining physical parameters and abundances. Our results confirm the low O-abundance of IC1613.

  15. Adaptation, test-retest reliability, and construct validity of the Physical Activity Neighborhood Environment Scale in Nigeria (PANES-N).

    Science.gov (United States)

    Oyeyemi, Adewale L; Sallis, James F; Oyeyemi, Adetoyeje Y; Amin, Mariam M; De Bourdeaudhuij, Ilse; Deforche, Benedicte

    2013-11-01

    This study adapted the Physical Activity Neighborhood Environment Scale (PANES) to the Nigerian context and assessed the test-retest reliability and construct validity of the Nigerian version (PANESN). A multidisciplinary panel of experts adapted the original PANES to reflect the built and social environment of Nigeria. The adapted PANES was subjected to cognitive testing and test retest reliability in a diverse sample of Nigerian adults (N = 132) from different neighborhood types. Intraclass Correlation Coefficients (ICC) was used to assess test-retest reliability, and construct validity was investigated with Analysis of Covariance for differences in environmental attributes between neighborhoods. Four of the 17 items on the original PANES were significantly modified, 3 were removed and 2 new items were incorporated into the final version of adapted PANES-N. Test-retest reliability was substantial to almost perfect (ICC = 0.62-1.00) for all items on the PANES-N, and residents of neighborhoods in the inner city reported higher residential density, land use mix and safety, but lower pedestrian facilities and aesthetics than did residents of government reserved area/new layout neighborhoods. The PANES-N appears promising for assessing environmental perceptions related to physical activity in Nigeria, but further testing is required to assess its applicability across Africa.

  16. The Tokamak Fusion Test Reactor decontamination and decommissioning project and the Tokamak Physics Experiment at the Princeton Plasma Physics Laboratory. Environmental Assessment

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-05-27

    If the US is to meet the energy needs of the future, it is essential that new technologies emerge to compensate for dwindling supplies of fossil fuels and the eventual depletion of fissionable uranium used in present-day nuclear reactors. Fusion energy has the potential to become a major source of energy for the future. Power from fusion energy would provide a substantially reduced environmental impact as compared with other forms of energy generation. Since fusion utilizes no fossil fuels, there would be no release of chemical combustion products to the atmosphere. Additionally, there are no fission products formed to present handling and disposal problems, and runaway fuel reactions are impossible due to the small amounts of deuterium and tritium present. The purpose of the TPX Project is to support the development of the physics and technology to extend tokamak operation into the continuously operating (steady-state) regime, and to demonstrate advances in fundamental tokamak performance. The purpose of TFTR D&D is to ensure compliance with DOE Order 5820.2A ``Radioactive Waste Management`` and to remove environmental and health hazards posed by the TFTR in a non-operational mode. There are two proposed actions evaluated in this environmental assessment (EA). The actions are related because one must take place before the other can proceed. The proposed actions assessed in this EA are: the decontamination and decommissioning (D&D) of the Tokamak Fusion Test Reactor (TFTR); to be followed by the construction and operation of the Tokamak Physics Experiment (TPX). Both of these proposed actions would take place primarily within the TFTR Test Cell Complex at the Princeton Plasma Physics Laboratory (PPPL). The TFTR is located on ``D-site`` at the James Forrestal Campus of Princeton University in Plainsboro Township, Middlesex County, New Jersey, and is operated by PPPL under contract with the United States Department of Energy (DOE).

  17. Investigation of PVC physical ageing in field test specimens using ultrasonic and dielectric measurements

    NARCIS (Netherlands)

    Demcenko, A.; Ravanan, M.; Visser, Roy; Loendersloot, Richard; Akkerman, Remko

    2013-01-01

    Physical ageing in PVC is studied using two techniques: a) non-linear ultrasonic measurements based on the non-collinear wave interaction theory and b) dielectric measurements. The ultrasonic measurement results are compared with dielectric measurement results. The comparison shows that the used

  18. High School Class for Gifted Pupils in Physics and Sciences and Pupils' Skills Measured by Standard and Pisa Test

    Science.gov (United States)

    Djordjevic, G. S.; Pavlovic-Babic, D.

    2010-01-01

    The "High school class for students with special abilities in physics" was founded in Nis, Serbia (www.pmf.ni.ac.yu/f_odeljenje) in 2003. The basic aim of this project has been introducing a broadened curriculum of physics, mathematics, computer science, as well as chemistry and biology. Now, six years after establishing of this specialized class, and 3 years after the previous report, we present analyses of the pupils' skills in solving rather problem oriented test, as PISA test, and compare their results with the results of pupils who study under standard curricula. More precisely results are compared to the progress results of the pupils in a standard Grammar School and the corresponding classes of the Mathematical Gymnasiums in Nis. Analysis of achievement data should clarify what are benefits of introducing in school system track for gifted students. Additionally, item analysis helps in understanding and improvement of learning strategies' efficacy. We make some conclusions and remarks that may be useful for the future work that aims to increase pupils' intrinsic and instrumental motivation for physics and sciences, as well as to increase the efficacy of teaching physics and science.

  19. Measurement of physical performance by field tests in programs of cardiac rehabilitation: a systematic review and meta-analysis.

    Science.gov (United States)

    Travensolo, Cristiane; Goessler, Karla; Poton, Roberto; Pinto, Roberta Ramos; Polito, Marcos Doederlein

    2018-04-13

    The literature concerning the effects of cardiac rehabilitation (CR) on field tests results is inconsistent. To perform a systematic review with meta-analysis on field tests results after programs of CR. Studies published in PubMed and Web of Science databases until May 2016 were analyzed. The standard difference in means correct by bias (Hedges' g) was used as effect size (g) to measure que amount of modifications in performance of field tests after CR period. Potential differences between subgroups were analyzed by Q-test based on ANOVA. Fifteen studies published between 1996 e 2016 were included in the review, 932 patients and age ranged 54,4 - 75,3 years old. Fourteen studies used the six-minutes walking test to evaluate the exercise capacity and one study used the Shuttle Walk Test. The random Hedges's g was 0.617 (P<0.001), representing a drop of 20% in the performance of field test after CR. The meta-regression showed significantly association (P=0.01) to aerobic exercise duration, i.e., for each 1-min increase in aerobic exercise duration, there is a 0.02 increase in effect size for performance in the field test. Field tests can detect physical modification after CR, and the large duration of aerobic exercise during CR was associated with a better result. Copyright © 2018 Sociedade Portuguesa de Cardiologia. Publicado por Elsevier España, S.L.U. All rights reserved.

  20. Parental expectations, physical punishment, and violence among adolescents who score positive on a psychosocial screening test in primary care.

    Science.gov (United States)

    Ohene, Sally-Ann; Ireland, Marjorie; McNeely, Clea; Borowsky, Iris Wagman

    2006-02-01

    We sought to examine the relationship between perceived and stated parental expectations regarding adolescents' use of violence, parental use of physical punishment as discipline, and young adolescents' violence-related attitudes and involvement. Surveys were completed by 134 youth and their parents attending 8 pediatric practices. All youth were 10 to 15 years of age and had scored positive on a psychosocial screening test. Multivariate analyses revealed that perceived parental disapproval of the use of violence was associated with a more prosocial attitude toward interpersonal peer violence and a decreased likelihood of physical fighting by the youth. Parental report of whether they would advise their child to use violence in a conflict situation (stated parental expectations) was not associated with the adolescents' attitudes toward interpersonal peer violence, intentions to fight, physical fighting, bullying, or violence victimization. Parental use of corporal punishment as a disciplining method was inversely associated with a prosocial attitude toward interpersonal peer violence among the youth and positively correlated with youths' intentions to fight and fighting, bullying, and violence victimization. Perceived parental disapproval of the use of violence may be an important protective factor against youth involvement in violence, and parental use of physical punishment is associated with both violence perpetration and victimization among youth. Parents should be encouraged to clearly communicate to their children how to resolve conflicts without resorting to violence and to model these skills themselves by avoiding the use of physical punishment.

  1. Particle Physics and Astronomy Research Council (PPARC) members, United Kingdom, visiting the ATLAS semiconductor tracker (SCT) module tests.

    CERN Multimedia

    Patrice Loïez

    2002-01-01

    Photo 01: Mr Peter Warry, PPARC Chairman, Victrex Plc, United Kingdom visiting the ATLAS SCT module tests with Dr Joleen Pater, SCT (Manchester). Photo 02: PPARC Council Members, United Kingdom, visiting the ATLAS SCT module tests. L.t to r.: Mrs Judith Scott, Chief Executive, British Computer Society, Prof. George Efstathiou, Institute of Astronomy, University of Cambridge, Mr Peter Warry, PPARC Chairman, Victrex Plc, Prof. Martin Ward, Director X-Ray Astronomy, of Leicester, Prof. James Stirling, Director, Institute for Particle Physics Phenomenology, University of Durham and Prof. Brian Foster, University of Bristol.

  2. Tests of health physics detectors and dosimeters to 6 and 9 MeV gamma-radiation

    International Nuclear Information System (INIS)

    1982-04-01

    The CEA health physicists working group on standardization and testing of detectors for the measurements of external exposure has set up and calibrated a capture #betta# beam. 6 and 9 MeV energies were obtained by means of Ti and Ni targets. These beams made it possible to determine the response of a number of detectors and dosimeters used in health physics to these energy ranges. Most generally, these tests showed that at 6 or 9 MeV the responses of instruments calibrated with 60 Co #betta#-rays could vary as much as a factor 2 when compared to the maximun of the absorbed dose in a human body [fr

  3. Family history of hypertension is associated with exaggerated cardiovascular reactivity to mental, but not to physical test

    Directory of Open Access Journals (Sweden)

    Ikhlas M. Jenie

    2010-05-01

    Full Text Available Aim To investigate whether normotensive young adults with family history of hypertension demonstrate exaggerated cardiovascular responses to both mental and physical stimuli as compared to normotensive young adults withoutfamily history of hypertension.Methods Normotensive undergraduate students of normotensive parents (n = 40 and of hypertensive father/ mother/ both (n = 40, aged 20 – 30 years, performed serial subtraction test in a sitting position for three minutes. After taking a rest, subjects performed cold pressor test in ninety seconds. In each test, blood pressure and pulse rate were recorded in pre-test, during test, and post-test using an automated oscillometric device. Changes score rather than absolute scores were analyzed using independent t-test or Mann-Whitney.Results There were no significantly differences in age, body mass index, fasting blood sugar, and plasma creatinine between the two groups. Normotensives of hypertensive parents had significantly higher offi ce systolic blood pressure (108.33 ± 1.6 vs 103.00 ± 1.6 mmHg and delta change score of cardiovascular reactivity to serial subtraction test (MABP 19.13 ± 1.4 vs 15.5 ± 1.0 mmHg, P = 0.04, but not to cold pressor test (MABP 24.26 ± 1.7 vs 21.74 ± 1.7 mmHg than those of normotensive parents.Conclusion Normotensive young adults with family history of hypertension demonstrated exaggerated cardiovascular reactivity to mental test but not to physical test. As compared to normotensive young adults without family history of hypertension However, this familial difference in cardiovascular reactivity to mental test is confused with office blood pressure. (Med J Indones 2010; 19:118-23Keywords: cardiovascular reactivity, cold pressor test, mental arithmetic test, of hypertension

  4. Test-Retest Reliability of a Survey to Measure Transport-Related Physical Activity in Adults

    Science.gov (United States)

    Badland, Hannah; Schofield, Grant

    2006-01-01

    The present research details test-retest reliability of a newly developed, telephone-administered TPA survey for adults. This instrument examines barriers, perceptions, and current travel behaviors to place of work/study and local convenience shops. Demonstrated test-retest reliability of the Active Friendly Environments-Transport-Related Physical…

  5. Physics-based damage predictions for simulating testing and evaluation (T and E) experiments

    Energy Technology Data Exchange (ETDEWEB)

    Addessio, F.L.; Schraad, M.W.; Lewis, M.W.

    1999-03-01

    This is the final report of a two-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). This report addresses the need to develop computational techniques and physics-based material models for simulating damage to weapons systems resulting from ballistic threats. Modern weapons systems, such as fighter aircraft, are becoming more dependent upon composite materials to reduce weight, to increase strength and stiffness, and to resist adverse conditions resulting from high temperatures and corrosion. Unfortunately, damaged components can have severe and detrimental effects, as evidenced by statistics from Desert Storm indicating that 75% of aircraft losses were attributable to fuel system vulnerability with hydrodynamic ram being the primary kill mechanism. Therefore, this project addresses damage predictions for composite systems that are subjected to ballistic threats involving hydrodynamic ram. A computational technique for simulating fluid-solid interaction phenomena and physics-based material models have been developed for this purpose.

  6. An empirical test of sex differences in the emphasis on physical attractiveness in mate selection.

    Science.gov (United States)

    Colwell, John

    2007-08-01

    Within a context provided by social structural theory, social evolutionary theory, and physical attractiveness stereotyping, the importance of physical attractiveness in heterosexual mate selection was explored by presenting 50 male and 50 female psychology students (M age = 22.5 yr.) during a scheduled class with an opposite sex personals advertisement, wherein the advertiser was described as 'average' or 'good-looking'. Dependent variables consisted of a written paragraph and measures of evaluation (Semantic Differential), attraction, advertisement appeal, and success. An interaction for sex x looks on the qualitative measure showed no effect for men, but the good-looking female advertiser was evaluated more positively. However, for quantitative data, the advertisement was seen as more appealing and likely to be successful when the advertiser was good looking as opposed to average looking, irrespective of sex of advertiser. Findings are discussed in relation to theoretical perspectives.

  7. How good are your fits? Unbinned multivariate goodness-of-fit tests in high energy physics

    International Nuclear Information System (INIS)

    Williams, M

    2010-01-01

    Multivariate analyses play an important role in high energy physics. Such analyses often involve performing an unbinned maximum likelihood fit of a probability density function (p.d.f.) to the data. This paper explores a variety of unbinned methods for determining the goodness of fit of the p.d.f. to the data. The application and performance of each method is discussed in the context of a real-life high energy physics analysis (a Dalitz-plot analysis). Several of the methods presented in this paper can also be used for the non-parametric determination of whether two samples originate from the same parent p.d.f. This can be used, e.g., to determine the quality of a detector Monte Carlo simulation without the need for a parametric expression of the efficiency.

  8. Precision tests of the standard model, the Higgs, and new physics

    Indian Academy of Sciences (India)

    tan¬ = 10, С L = 1 TeV and С = 1 TeV. Our approach is to discard the measurement of. , which cannot be reproduced by conventional new physics effects, fix the Higgs mass above its present limit, and look for supersymmetric corrections that can fake a very light sM Higgs boson. As seen from figure 3, this can be achieved if ...

  9. High energy-density physics: From nuclear testing to the superlasers

    International Nuclear Information System (INIS)

    Teller, E.; Campbell, E.M.; Holmes, N.C.; Libby, S.B.; Remington, B.A.

    1995-01-01

    The authors describe the role for the next-generation ''superlasers'' in the study of matter under extremely high energy density conditions, in comparison to previous uses of nuclear explosives for this purpose. As examples, the authors focus on three important areas of physics that have unresolved issues which must be addressed by experiment: equations of state, turbulent hydrodynamics, and the transport of radiation. They describe the advantages the large lasers will have in a comprehensive experimental program

  10. High energy-density physics: From nuclear testing to the superlasers

    International Nuclear Information System (INIS)

    Campbell, E.M.; Holmes, N.C.; Libby, S.B.; Remington, B.A.; Teller, E.

    1995-01-01

    We describe the role for the next-generation ''superlasers'' in the study of matter under extremely high energy density conditions, in comparison to previous uses of nuclear explosives for this purpose. As examples, we focus on three important areas of physics that have unresolved issues which must be addressed by experiment: Equations of state, hydrodynamic mixing, and the transport of radiation. We will describe the advantages the large lasers will have in a comprehensive experimental program

  11. High energy-density physics: From nuclear testing to the superlasers

    Energy Technology Data Exchange (ETDEWEB)

    Campbell, E.M.; Holmes, N.C.; Libby, S.B.; Remington, B.A.; Teller, E.

    1995-10-20

    We describe the role for the next-generation ``superlasers`` in the study of matter under extremely high energy density conditions, in comparison to previous uses of nuclear explosives for this purpose. As examples, we focus on three important areas of physics that have unresolved issues which must be addressed by experiment: Equations of state, hydrodynamic mixing, and the transport of radiation. We will describe the advantages the large lasers will have in a comprehensive experimental program.

  12. High energy-density physics: From nuclear testing to the superlasers

    Energy Technology Data Exchange (ETDEWEB)

    Teller, E.; Campbell, E.M.; Holmes, N.C.; Libby, S.B.; Remington, B.A.

    1995-08-14

    The authors describe the role for the next-generation ``superlasers`` in the study of matter under extremely high energy density conditions, in comparison to previous uses of nuclear explosives for this purpose. As examples, the authors focus on three important areas of physics that have unresolved issues which must be addressed by experiment: equations of state, turbulent hydrodynamics, and the transport of radiation. They describe the advantages the large lasers will have in a comprehensive experimental program.

  13. Evaluation of the Start-Up Core Physics Tests at Japan's High Temperature Engineering Test Reactor (Annular Core Loadings)

    Energy Technology Data Exchange (ETDEWEB)

    John D. Bess; Nozomu Fujimoto; James W. Sterbentz; Luka Snoj; Atsushi Zukeran

    2010-03-01

    The High Temperature Engineering Test Reactor (HTTR) of the Japan Atomic Energy Agency (JAEA) is a 30 MWth, graphite-moderated, helium-cooled reactor that was constructed with the objectives to establish and upgrade the technological basis for advanced high-temperature gas-cooled reactors (HTGRs) as well as to conduct various irradiation tests for innovative high-temperature research. The core size of the HTTR represents about one-half of that of future HTGRs, and the high excess reactivity of the HTTR, necessary for compensation of temperature, xenon, and burnup effects during power operations, is similar to that of future HTGRs. During the start-up core physics tests of the HTTR, various annular cores were formed to provide experimental data for verification of design codes for future HTGRs. The Japanese government approved construction of the HTTR in the 1989 fiscal year budget; construction began at the Oarai Research and Development Center in March 1991 and was completed May 1996. Fuel loading began July 1, 1998, from the core periphery. The first criticality was attained with an annular core on November 10, 1998 at 14:18, followed by a series of start-up core physics tests until a fully-loaded core was developed on December 16, 1998. Criticality tests were carried out into January 1999. The first full power operation with an average core outlet temperature of 850ºC was completed on December 7, 2001, and operational licensing of the HTTR was approved on March 6, 2002. The HTTR attained high temperature operation at 950 ºC in April 19, 2004. After a series of safety demonstration tests, it will be used as the heat source in a hydrogen production system by 2015. Hot zero-power critical, rise-to-power, irradiation, and safety demonstration testing , have also been performed with the HTTR, representing additional means for computational validation efforts. Power tests were performed in steps from 0 to 30 MW, with various tests performed at each step to confirm

  14. [A new procedure for the estimation of physical fitness of patients during clinical rehabilitation using the 6-minutes walk test].

    Science.gov (United States)

    Marek, W; Marek, E; Friz, Y; Vogel, P; Mückenhoff, K; Kotschy-Lang, N

    2010-03-01

    AIMS OF THE INVESTIGATION: The repetition of the 6-minutes walk test (6 MWT) in older patients is frequently performed in order to document the maximal walking distance, although it is not recommended in any guidelines on exercise tests and although there is common consent to save clinical resources in terms of time and staff. Therefore, we have examined whether and to what extent the repetition of the walk tests helps patients to get more familiar with this kind of exercise test. Thus the acquired physiological data should reliably describe the physical fitness of the patients at the beginning and at the end of their clinical rehabilitation. 35 patients performed their walk tests before and after 3 - 4 weeks of clinical rehabilitation. Each test has been repeated after one hour of recovery. The patients were instructed to walk during 6 minutes as fast as possible. They were equipped with a mobile pulse oximeter for recording oxygen saturation and heart rate. The distance, S, and the heart rate, fc, were measured. Measurements were performed every 30 seconds and recorded. The efficiency, E (E = S/6/fc), was calculated as the ratio of distance per minute and the mean heart rate during the test. In the first test the patients walked 416 +/- 63 m at a heart rate of 104.7 +/- 15.7 beats/min, in the first repeated test 454 +/- 71 m at a heart of 106.3 +/- 17.4 beats/min. In the second test, after clinical therapy, they walked 438 +/- 58 m at a heart rate of 106.3 +/- 17.4 beats/min, in the second repeated test 473 +/- 56 m at 108.6 +/- 13.2/min. The difference of the walking distances of the tests at the entrance were found to be 38.4 +/- 26.2 m (+ 9.3 +/- 6.2%), at the end of clinical rehabilitation 35 +/- 26 m (+ 8.4 +/- 6.4%). Both differences are found to be independent from the distance of the first test. They are not significantly different. The efficiency was not significantly different in the initial and final test (0.673 +/- 0.129 and 0.689 +/- 0.085 m

  15. The Booster Break program: description and feasibility test of a worksite physical activity daily practice.

    Science.gov (United States)

    Taylor, Wendell C; Shegog, Ross; Chen, Vincent; Rempel, David M; Baun, MaryBeth Pappas; Bush, Cresendo L; Green, Tomas; Hare-Everline, Nicole

    2010-01-01

    Work breaks are underutilized opportunities to promote health. The Booster Break program is a co-worker led physical activity group session devoted exclusively to standard 15-minute work breaks. The purpose of this study was to report the fidelity, attendance, feasibility, and sustainability of the Booster Break program and to explore its potential impact. The study site was a small business that provides legal and court reporting services to lawyers. The company's services include legal videography, litigation, records retrieval, and videoconferencing to civil attorneys. Established in 1973, the organization has 14 employees (8 women and 6 men), from 32 to 66 years of age. For six months, this small business implemented the Booster Break program. Booster Break facilitators conducted the group sessions according to protocol, which included describing, cueing, and executing the physical activity sequence. During the six month period, 117 sessions were conducted. The average monthly attendance ranged from 76% to 86%. Participants significantly improved HDL cholesterol (p=0.04) and lost an average of 14 pounds. The Booster Break program is a feasible physical activity program for small business settings. The implications of the Booster Break program for future research in worksite settings are discussed.

  16. Preliminary reactor physics calculations for Exxon LWR fuel testing in the power burst facility

    International Nuclear Information System (INIS)

    Olson, W.O.; Nigg, D.W.

    1981-05-01

    The PFB reactor is being considered as an irradiation facility to test LWR fuel rods for Exxon Nuclear Company. Requested test conditions are 18 kW/ft axial peak steady state power in 2.5% initial enrichment, 20,000 MWd/Tu exposed rods. Multigroup transport theory calculations (S/sub n/ and Monte Carlo) showed that this was unattainable in the standard PBF test loop. Thus, a flux multiplier was developed in the form of a Zr-2-clad 0.15-inch thick cylindrical shell of 35% enriched, 88% T.D. UO 2 replacing the flow divider, surrounding the rod within the in-pile tube in PFB. With this flux multiplier installed and assuming an average water density of 0.86 g/cm 3 within the test loop, a Figure of Merit (FOM) for a single-rod test assembly of 0.86 kW/ft-MW +- 5% (at 95% confidence level) was calculated. This FOM is the axial peak linear test rod power per megawatt of reactor power. A reactor power of about 21 megawatts will therefore be required to supply the requested linear test rod axial peak heating rate of 18 kW/ft

  17. Functional reach and lateral reach tests adapted for aquatic physical therapy

    Directory of Open Access Journals (Sweden)

    Ana Angélica Ribeiro de Lima

    Full Text Available Abstract Introduction: Functional reach (FR and lateral reach (LR tests are widely used in scientific research and clinical practice. Assessment tools are useful in assessing subjects with greater accuracy and are usually adapted according to the limitations of each condition. Objective: To adapt FR and LR tests for use in an aquatic environment and assess the performance of healthy young adults. Methods: We collected anthropometric data and information on whether the participant exercised regularly or not. The FR and LR tests were adapted for use in an aquatic environment and administered to 47 healthy subjects aged 20-30 years. Each test was repeated three times. Results: Forty-one females and six males were assessed. The mean FR test score for men was 24.06 cm, whereas the mean value for right lateral reach (RLR was 10.94 cm and for left lateral reach (LLR was 9.78 cm. For females, the mean FR score was 17.57 cm, while the mean values for RLR was 8.84cm and for LLR was 7.76 cm. Men performed better in the FR (p < 0.001 and RLR tests than women (p = 0.037. Individuals who exercised regularly showed no differences in performance level when compared with their counterparts. Conclusion: The FR and LR tests were adapted for use in an aquatic environment. Males performed better on the FR and RLR tests, when compared to females. There was no correlation between the FR and LR tests and weight, height, Body Mass Index (BMI, foot length or length of the dominant upper limb.

  18. An Evaluation of Test and Physical Uncertainty of Measuring Vibration in Wooden Junctions

    DEFF Research Database (Denmark)

    Dickow, Kristoffer Ahrens; Kirkegaard, Poul Henning; Andersen, Lars Vabbersgaard

    2012-01-01

    In the present paper a study of test and material uncertainty in modal analysis of certain wooden junctions is presented. The main structure considered here is a T-junction made from a particleboard plate connected to a spruce beam of rectangular cross section. The size of the plate is 1.2 m by 0.......6 m. The T-junctions represent cut-outs of actual full size floor assemblies. The aim of the experiments is to investigate the underlying uncertainties of both the test method as well as variation in material and craftmanship. For this purpose, ten nominally identical junctions are tested and compared...... to each other in terms of modal parameters such as natural frequencies, modeshapes and damping. Considerations regarding the measurement procedure and test setup are discussed. The results indicate a large variation of the response at modes where the coupling of torsion in the beam to bending of the plate...

  19. Physical and chemical changes to rock near electrically heated boreholes at Spent Fuel Test-Climax

    International Nuclear Information System (INIS)

    Beiriger, J.M.; Durham, W.B.; Ryerson, F.J.

    1985-01-01

    Sections of Climax Stock quartz monzonite taken from the vicinity of two electrically heated boreholes at Spent Fuel Test-Climax (SFT-C) have been studied by scanning electron microscopy and optical microscopy for signs of changes in crack structure and in mineralogy resulting from operations at SFT-C. The crack structure, as measured by density of cracks and average crack lengths was found not to have changed as a result of heating, regardless of distance from the heater hole. However, rock near the heater borehole sampled in the north heater drift was found to be more cracked than rock near the borehole sampled in the south heater drift. Mineralogically, the post-test samples are identical to the pre-test samples. No new phases have been formed as a result of the test. 10 refs., 6 figs., 8 tabs

  20. An Idea of 20% test of the Initial Core Reactor Physics

    International Nuclear Information System (INIS)

    Roh, Kyung Ho; Yang, Sung Tae; Jung, Ji Eun

    2012-01-01

    Many tests have been performed on the OPR1000 and APR1400 before commercial operation. Some of these tests were performed at reactor power levels of 20% and 50%. The CPC (Core Protection Calculator) power distribution test is one of these tests. It is performed to assure the reliability of the Core Protection Calculator System (CPCS). Through this test, SAM1 is calculated using the snapshots2. The test takes about nine hours at a reactor power level of 20% and about thirty hours at a reactor power level of 50%. SAM used at each reactor power level is as follows: 1. Reactor power of 0% ∼ 20%: Designed SAM (DSAM) 2. Reactor power of 20% ∼ 50%: SAM calculated (C-SAM) at a reactor power of 20% 3. Reactor power 50% ∼ End of Cycle : SAM calculated at a reactor power of 50% As mentioned earlier, SAM is calculated and punched into CPC to assure the reliability of CPCS. Therefore, CPC is operated having penalties with D-SAM until3 reaching a reactor power of 20%. That is, the penalty of CPC will be removed when SAM is calculated and punched into the CPC at a reactor power of 20%. But these penalties are considered to be removed after a reactor power of 50% test in order to maintain the conservatism of the CPC. This is done because the final values calculated using C-SAM, in contrast to those calculated using SAM, a reactor power of 50%, are not correct. This paper began from an idea, 'If so, what would happen if we removed the CPC power distribution test at a reactor power of 20%?'

  1. A Mobile Application for Easy Design and Testing of Algorithms to Monitor Physical Activity in the Workplace

    Directory of Open Access Journals (Sweden)

    Susanna Spinsante

    2016-01-01

    Full Text Available This paper addresses approaches to Human Activity Recognition (HAR with the aim of monitoring the physical activity of people in the workplace, by means of a smartphone application exploiting the available on-board accelerometer sensor. In fact, HAR via a smartphone or wearable sensor can provide important information regarding the level of daily physical activity, especially in situations where a sedentary behavior usually occurs, like in modern workplace environments. Increased sitting time is significantly associated with severe health diseases, and the workplace is an appropriate intervention setting, due to the sedentary behavior typical of modern jobs. Within this paper, the state-of-the-art components of HAR are analyzed, in order to identify and select the most effective signal filtering and windowing solutions for physical activity monitoring. The classifier development process is based upon three phases; a feature extraction phase, a feature selection phase, and a training phase. In the training phase, a publicly available dataset is used to test among different classifier types and learning methods. A user-friendly Android-based smartphone application with low computational requirements has been developed to run field tests, which allows to easily change the classifier under test, and to collect new datasets ready for use with machine learning APIs. The newly created datasets may include additional information, like the smartphone position, its orientation, and the user’s physical characteristics. Using the mobile tool, a classifier based on a decision tree is finally set up and enriched with the introduction of some robustness improvements. The developed approach is capable of classifying six activities, and to distinguish between not active (sitting and active states, with an accuracy near to 99%. The mobile tool, which is going to be further extended and enriched, will allow for rapid and easy benchmarking of new algorithms based

  2. Falls and their association with physical tests, functional capacity, clinical and demographic factors in patients with rheumatoid arthritis

    Directory of Open Access Journals (Sweden)

    Mariana de Almeida Lourenço

    Full Text Available ABSTRACT Objective: To evaluate the occurrence of falls reported by rheumatoid arthritis patients and its relation to disease activity, functional capacity and physical fitness. Materials and methods: A cross-sectional study constituted by a sample of 97 rheumatoid arthritis patients from the city of Marília (SP from 2012 to 2013, were assessed for disease activity. Instruments validated for Brazilian population in order to evaluate physical and functional capacity were used. Data analysis was carried out with descriptive statistics, Spearman correlation and Chi-squared test, considering p < 0.05. Results: 88.7% were female subjects with a mean age of 56 (±11.7 years. The median duration of rheumatoid arthritis was 10 years (P25 = 6 and P75 = 17 and the mean of disease activity was 3.6 (±1.3, what was considered a moderate activity. In the last 12 months 37.1% of patients experienced at least one fall, with a total of 52 episodes, and fear of falling was reported by 74.2% of them, but this was not associated to the occurrence of a fall (χ 2 = 1.19, p = 0.27. Gender, number of medications, age, disease activity, duration of rheumatoid arthritis, functional capacity, and physical tests showed no associations with history of falls in the past year. Conclusion: It was observed that the occurrence of falls and the fear of falling are quite common in this population. The occurrence of falls in this sample of rheumatoid arthritis patients bears no relation to disease activity, functional capacity, or physical fitness tests.

  3. Falls and their association with physical tests, functional capacity, clinical and demographic factors in patients with rheumatoid arthritis.

    Science.gov (United States)

    Lourenço, Mariana de Almeida; Roma, Izabela; Assis, Marcos Renato de

    To evaluate the occurrence of falls reported by rheumatoid arthritis patients and its relation to disease activity, functional capacity and physical fitness. A cross-sectional study constituted by a sample of 97 rheumatoid arthritis patients from the city of Marília (SP) from 2012 to 2013, were assessed for disease activity. Instruments validated for Brazilian population in order to evaluate physical and functional capacity were used. Data analysis was carried out with descriptive statistics, Spearman correlation and Chi-squared test, considering p<0.05. 88.7% were female subjects with a mean age of 56 (±11.7) years. The median duration of rheumatoid arthritis was 10 years (P25=6 and P75=17) and the mean of disease activity was 3.6 (±1.3), what was considered a moderate activity. In the last 12 months 37.1% of patients experienced at least one fall, with a total of 52 episodes, and fear of falling was reported by 74.2% of them, but this was not associated to the occurrence of a fall (χ 2 =1.19, p=0.27). Gender, number of medications, age, disease activity, duration of rheumatoid arthritis, functional capacity, and physical tests showed no associations with history of falls in the past year. It was observed that the occurrence of falls and the fear of falling are quite common in this population. The occurrence of falls in this sample of rheumatoid arthritis patients bears no relation to disease activity, functional capacity, or physical fitness tests. Copyright © 2016 Elsevier Editora Ltda. All rights reserved.

  4. Pendulum Test: A Highly Accurate and Simple Physical Examination Maneuver to Identify Hip Pathology

    Directory of Open Access Journals (Sweden)

    Yasushi Oshima

    2015-10-01

    Full Text Available Background: Patients with hip pathology often complain of various symptoms, e.g. pain or discomfort of low back, lower extremity, hip, groin, thigh, buttock or knee. Physicians may be distracted by these complaints, and misdiagnose and mistreat hip pathology. To avoid this, the pendulum test, which is performed with a patient seated on the examination table and hips and knees are flexed at 90 degrees, while the examiner passively swings the patient's lower extremity in and out as a pendulum, has been employed for all patients with the complaint of low back, hip and knee. Objective: The efficacy and the accuracy of the pendulum test were evaluated. Patients and methods: Consecutive 40 patients, who had complained pain or discomfort of low back, lower extremity, hip, groin, thigh, buttock and knee were examined by the pendulum test. Results: Eighteen patients were positive for the pendulum test, and all of them correlated to the hip pathology. Conclusions: The pendulum test was confirmed to be easily performed and reliable in detecting the hip pathology. Therefore, this test is highly recommended for the differentiation of patients with low back, hip and knee complaints.

  5. High-energy cosmic rays and tests of basic principles of Physics

    Directory of Open Access Journals (Sweden)

    Gonzalez-Mestres L.

    2014-04-01

    Full Text Available With the present understanding of data, the observed flux suppression for ultra-high energy cosmic rays (UHECR at energies above 4.1019 eV can be a signature of the Greisen-Zatsepin-Kuzmin (GZK cutoff or be related to a similar mechanism. But it may also correspond, for instance, to the maximum energies available at the relevant sources. In both cases, violations of special relativity modifying cosmic-ray propagation or acceleration at very high energy can potentially play a role. Other violations of fundamental principles of standard particle physics (quantum mechanics, energy and momentum conservation, vacuum homogeneity and “static” properties, effective space dimensions, quark confinement… can also be relevant at these energies. In particular, UHECR data would in principle allow to set bounds on Lorentz symmetry violation (LSV in patterns incorporating a privileged local reference frame (the “vacuum rest frame”, VRF. But the precise analysis is far from trivial, and other effects can also be present. The effective parameters can be related to Planckscale physics, or even to physics beyond Planck scale, as well as to the dynamics and effective symmetries of LSV for nucleons, quarks, leptons and the photon. LSV can also be at the origin of GZK-like effects. In the presence of a VRF, and contrary to a “grand unification” view, LSV and other violations of standard principles can modify the internal structure of particles at very high energy and conventional symmetries may cease to be valid at energies close to the Planck scale. We present an updated discussion of these topics, including experimental prospects, new potentialities for high-energy cosmic ray phenomenology and the possible link with unconventional pre-Big Bang scenarios, superbradyon (superluminal preon patterns… The subject of a possible superluminal propagation of neutrinos at accelerator energies is also dealt with.

  6. Effects of a whole body vibration training program on strength, power, and functional tests in the physically active elderly

    Directory of Open Access Journals (Sweden)

    Renata Gonçalves da Silva

    2009-04-01

    Full Text Available The aim of this study was to investigate the effect of a whole body vibration training program on knee extensor isokinetic peak torque, average power, and functional tests in the physically active elderly. Forty-seven subjects, who participated in a training program for the elderly, were recruited. The subjects were divided into two groups: whole body vibration group (WBV (n=24, 70.7±5.8 years, 62.7±12.3 kg and 155.9±8.0 cm and control group (n=23. 70.0±5.7 years, 65.3±10.7 kg and 157.9±6.6 cm. The WBS group underwent whole body vibration exercise and their regular training program for 13 weeks, 2 times per week, whereas the control group performed the regular training program only. Whole body vibration training was not effective in increasing isokinetic peak torque, average power, or performance in the functional tests. On the other hand, the regular training program was effective in increasing elbow flexor strength endurance, distance covered in the 6-min walk test, and speed in the timed up and go test. The results suggest that vibration training is not effective in modifying functionality or muscle strength and power in the physically active elderly.

  7. Effects of a whole body vibration training program on strength, power, and functional tests in the physically active elderly

    Directory of Open Access Journals (Sweden)

    Renata Gonçalves da Silva

    2009-01-01

    Full Text Available http://dx.doi.org/10.5007/1980-0037.2009v11n2p166   The aim of this study was to investigate the effect of a whole body vibration training program on knee extensor isokinetic peak torque, average power, and functional tests in the physically active elderly. Forty-seven subjects, who participated in a training program for the elderly, were recruited. The subjects were divided into two groups: whole body vibration group (WBV (n=24, 70.7±5.8 years, 62.7±12.3 kg and 155.9±8.0 cm and control group (n=23. 70.0±5.7 years, 65.3±10.7 kg and 157.9±6.6 cm. The WBS group underwent whole body vibration exercise and their regular training program for 13 weeks, 2 times per week, whereas the control group performed the regular training program only. Whole body vibration training was not effective in increasing isokinetic peak torque, average power, or performance in the functional tests. On the other hand, the regular training program was effective in increasing elbow flexor strength endurance, distance covered in the 6-min walk test, and speed in the timed up and go test. The results suggest that vibration training is not effective in modifying functionality or muscle strength and power in the physically active elderly.

  8. Modernization of Physical Appearance and Solution Color Tests Using Quantitative Tristimulus Colorimetry: Advantages, Harmonization, and Validation Strategies.

    Science.gov (United States)

    Pack, Brian W; Montgomery, Laura L; Hetrick, Evan M

    2015-10-01

    Color measurements, including physical appearance, are important yet often misunderstood and underappreciated aspects of a control strategy for drug substances and drug products. From a patient safety perspective, color can be an important control point for detecting contamination, impurities, and degradation products, with human visual acuity often more sensitive for colored impurities than instrumental techniques such as HPLC. Physical appearance tests and solution color tests can also serve an important role in ensuring that appropriate steps are taken such that clinical trials do not become unblinded when the active material is compared with another product or a placebo. Despite the importance of color tests, compendial visual tests are not harmonized across the major pharmacopoeias, which results in ambiguous specifications of little value, difficult communication of true sample color, and significant extra work required for global registration. Some pharmacopoeias have not yet recognized or adopted technical advances in the instrumental measurement of color and appearance, whereas others begin to acknowledge the advantage of instrumental colorimetry, yet leave implementation of the technology ambiguous. This commentary will highlight the above-mentioned inconsistencies, provide an avenue toward harmonization and modernization, and outline a scientifically sound approach for implementing quantitative technologies for improved measurement, communication, and control of color and appearance for both solutions and solids. Importantly, this manuscript, for the first time, outlines a color method validation approach that is consistent with the International Conference on Harmonization's guidance on the topic of method validation. © 2015 Wiley Periodicals, Inc. and the American Pharmacists Association.

  9. Special physical examination tests for superior labrum anterior-posterior shoulder tears: an examination of clinical usefulness.

    Science.gov (United States)

    Sandrey, Michelle A

    2013-01-01

    Calvert E, Chambers GK, Regan W, Hawkins RH, Leith JM. Special physical examination tests for superior labrum anterior-posterior shoulder injuries are clinically limited and invalid: a diagnostic systematic review. J Clin Epidemiol. 2009;62(5):558-563. The systematic review focused on diagnostic accuracy studies to determine if evidence was sufficient to support the use of superior labrum anterior-posterior (SLAP) physical examination tests as valid and reliable. The primary question was whether there was sufficient evidence in the published literature to support the use of SLAP physical examination tests as valid and reliable diagnostic test procedures. Studies published in English were identified through database searches on MEDLINE, EMBASE, and the Cochrane database (1970-2004) using the search term SLAP lesions. The medical subject headings of arthroscopy, shoulder joint, and athletic injuries were combined with test or testing, physical examination, and sensitivity and specificity to locate additional sources. Other sources were identified by rereviewing the reference lists of included studies and review articles. Studies were eligible based on the following criteria: (1) published in English, (2) focused on the physical examination of SLAP lesions, and (3) presented original data. A study was excluded if the article was limited to a clinical description of 1 or more special tests without any research focus to provide clinical accuracy data or if it did not focus on the topic. The abstracts that were located through the search strategies were reviewed, and potentially relevant abstracts were selected. Strict epidemiologic methods were used to obtain and collate all relevant studies; the authors developed a study questionnaire to record study name, year of publication, study design, sample size, and statistics. Validity of the diagnostic test study was determined by applying the 5 criteria proposed by Calvert et al. If the study met the inclusion and validity

  10. TIG-dressing of high strength butt welded connection - Part 2: physical testing and modelling

    NARCIS (Netherlands)

    Es, S.H.J. van; Kolstein, M.H.; Pijpers, R.J.M.; Bijlaard, F.S.K.

    2013-01-01

    Weld improvement techniques are aimed at reducing the notch effects of welds and generally focus on two aspects: a change of geometry of the weld toe and a change of the weld residual stresses. In this paper, fatigue tests are discussed, performed on butt welded specimens in steel grades ranging

  11. Development of computerized adaptive testing (CAT) for the EORTC QLQ-C30 physical functioning dimension

    DEFF Research Database (Denmark)

    Petersen, Morten Aagaard; Grønvold, Mogens; Aaronson, Neil K.

    2011-01-01

    Computerized adaptive test (CAT) methods, based on item response theory (IRT), enable a patient-reported outcome instrument to be adapted to the individual patient while maintaining direct comparability of scores. The EORTC Quality of Life Group is developing a CAT version of the widely used EORT...

  12. Vessel grounding in entrance channels: case studies and physical model tests

    CSIR Research Space (South Africa)

    Tulsi, K

    2014-05-01

    Full Text Available off the channel slope and back into the entrance channel. The tests were conducted at the Coastal & Hydraulics Laboratory, of the CSIR in Stellenbosch, South Africa. Simulated vessel grounding was modelled in a hydraulic basin at a scale of 1:100. Over...

  13. Updates to the Generation of Physics Data Inputs for MAMMOTH Simulations of the Transient Reactor Test Facility - FY2016

    Energy Technology Data Exchange (ETDEWEB)

    Ortensi, Javier [Idaho National Lab. (INL), Idaho Falls, ID (United States); Baker, Benjamin Allen [Idaho National Lab. (INL), Idaho Falls, ID (United States); Schunert, Sebastian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Wang, Yaqi [Idaho National Lab. (INL), Idaho Falls, ID (United States); Gleicher, Frederick Nathan [Idaho National Lab. (INL), Idaho Falls, ID (United States); DeHart, Mark David [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-06-01

    The INL is currently evolving the modeling and simulation (M&S) capability that will enable improved core operation as well as design and analysis of TREAT experiments. This M&S capability primarily uses MAMMOTH, a reactor physics application being developed under Multi-physics Object Oriented Simulation Environment (MOOSE) framework. MAMMOTH allows the coupling of a number of other MOOSE-based applications. This second year of work has been devoted to the generation of a deterministic reference solution for the full core, the preparation of anisotropic diffusion coefficients, the testing of the SPH equivalence method, and the improvement of the control rod modeling. In addition, this report includes the progress made in the modeling of the M8 core configuration and experiment vehicle since January of this year.

  14. Systematic review and proposal of a field-based physical fitness-test battery in preschool children: the PREFIT battery.

    Science.gov (United States)

    Ortega, Francisco B; Cadenas-Sánchez, Cristina; Sánchez-Delgado, Guillermo; Mora-González, José; Martínez-Téllez, Borja; Artero, Enrique G; Castro-Piñero, Jose; Labayen, Idoia; Chillón, Palma; Löf, Marie; Ruiz, Jonatan R

    2015-04-01

    Physical fitness is a powerful health marker in childhood and adolescence, and it is reasonable to think that it might be just as important in younger children, i.e. preschoolers. At the moment, researchers, clinicians and sport practitioners do not have enough information about which fitness tests are more reliable, valid and informative from the health point of view to be implemented in preschool children. Our aim was to systematically review the studies conducted in preschool children using field-based fitness tests, and examine their (1) reliability, (2) validity, and (3) relationship with health outcomes. Our ultimate goal was to propose a field-based physical fitness-test battery to be used in preschool children. PubMed and Web of Science. Studies conducted in healthy preschool children that included field-based fitness tests. When using PubMed, we included Medical Subject Heading (MeSH) terms to enhance the power of the search. A set of fitness-related terms were combined with 'child, preschool' [MeSH]. The same strategy and terms were used for Web of Science (except for the MeSH option). Since no previous reviews with a similar aim were identified, we searched for all articles published up to 1 April 2014 (no starting date). A total of 2,109 articles were identified, of which 22 articles were finally selected for this review. Most studies focused on reliability of the fitness tests (n = 21, 96%), while very few focused on validity (0 criterion-related validity and 4 (18%) convergent validity) or relationship with health outcomes (0 longitudinal and 1 (5%) cross-sectional study). Motor fitness, particularly balance, was the most studied fitness component, while cardiorespiratory fitness was the least studied. After analyzing the information retrieved in the current systematic review about fitness testing in preschool children, we propose the PREFIT battery, field-based FITness testing in PREschool children. The PREFIT battery is composed of the following

  15. Physical-chemical and mechanical testing of membranes of chitosan with copper, zinc and magnesium

    International Nuclear Information System (INIS)

    Cardoso, M.J.B.; Barbosa, R.C.; Ries, A.; Fidelis, T.; Fook, M.V.L.

    2012-01-01

    The objective of this work was to evaluate the influence of copper, zinc and magnesium ions on the mechanical and physical chemical properties of chitosan membranes. The membranes were prepared by solvent evaporation method and characterized by Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy, X-ray diffraction, Superficial Tension and Mechanical Stress-Strain Analysis. From the results could be conclude that the incorporation of metals into chitosan membranes, did not modify the characteristic profile of the membranes. However, the metal containing membranes presented minor flexibility and greater fragility. This is associated to the chelation of metallic ions by chitosan, resulting in a linking between chitosan chains, thus reducing the structural flexibility of the membranes. (author)

  16. Evaluation of a draft standard on performance specifications for health physics instrumentation. Initial results for radiological tests

    International Nuclear Information System (INIS)

    Swinth, K.L.; Kenoyer, J.L.; Mileham, A.P.; Kathren, R.L.; Selby, J.M.

    1983-06-01

    The draft ANSI standard N42.17D2 on performance specifications for health physics instrumentation is currently being evaluated by the Pacific Northwest Laboratory. The primary objective of the project is the evaluation of the applicability and practicality of the proposed standard through testing of a cross-section of currently available commercial instruments to determine how well they conform to the standard. The standard is being tested against instruments such as ionization chambers, G.M. detectors, alpha survey meters, and neutron dose equivalent survey meters. This paper presents results of the preliminary radiological performance tests on ionization chambers and G.M. detectors. This includes both the data generated during the tests and a discussion of procedures developed to perform the testing. Results are reported for response time, accuracy, precision, radiation overloads, and angular dependence. In addition, results are reported for parameters that affect instrument performance including battery lifetime, geotropism and stability. Initial test indicates that some of the instruments will not meet the criteria specified in ANSI N42.17D2. Results cover approximately 40 instruments that have been obtained by direct purchase, by loan from instrument vendors or by loan from others including DOE licensees

  17. Influence of relative humidity and physical load during storage on dustiness of inorganic nanomaterials: implications for testing and risk assessment

    International Nuclear Information System (INIS)

    Levin, Marcus; Rojas, Elena; Vanhala, Esa; Vippola, Minnamari; Liguori, Biase; Kling, Kirsten I.; Koponen, Ismo K.; Mølhave, Kristian; Tuomi, Timo; Gregurec, Danijela; Moya, Sergio; Jensen, Keld A.

    2015-01-01

    Dustiness testing using a down-scaled EN15051 rotating drum was used to investigate the effects of storage conditions such as relative humidity and physical loading on the dustiness of five inorganic metal oxide nanostructured powder materials. The tests consisted of measurements of gravimetrical respirable dustiness index and particle size distributions. Water uptake of the powders during 7 days of incubation was investigated as an explanatory factor of the changes. Consequences of these varying storage conditions in exposure modelling were tested using the control banding and risk management tool NanoSafer. Drastic material-specific effects on powder respirable dustiness index were observed with the change in TiO 2 from 30 % RH (639 mg/kg) to 50 % RH (1.5 mg/kg). All five tested materials indicate a decreasing dustiness index with relative humidity increasing from 30 to 70 % RH. Test of powder water uptake showed an apparent link with the decreasing dustiness index. Effects of powder compaction appeared more material specific with both increasing and decreasing dustiness indices observed as an effect of compaction. Tests of control banding exposure models using the measured dustiness indices in three different exposure scenarios showed that in two of the tested materials, one 20 % change in RH changed the exposure banding from the lowest level to the highest. The study shows the importance of powder storage conditions prior to tests for classification of material dustiness indices. It also highlights the importance of correct storage information and relative humidity and expansion of the dustiness test conditions specifically, when using dustiness indices as a primary parameter for source strength in exposure assessment

  18. Clinician-friendly physical performance tests in athletes part 3: a systematic review of measurement properties and correlations to injury for tests in the upper extremity.

    Science.gov (United States)

    Tarara, Daniel T; Fogaca, Lucas K; Taylor, Jeffrey B; Hegedus, Eric J

    2016-05-01

    In parts 1 and 2 of this systematic review, the methodological quality as well as the quality of the measurement properties of physical performance tests (PPTs) of the lower extremity in athletes was assessed. In this study, part 3, PPTs of the upper extremity in athletes are examined. Database and hand searches were conducted to identify primary literature addressing the use of upper extremity PPTs in athletes. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed and the Consensus-based Standards for the selection of health Measurement Instruments (COSMIN) checklist was used to critique the methodological quality of each paper. The Terwee Scale was used to analyse the quality of the measurement properties of each test. 11 articles that examined 6 PPTs were identified. The 6 PPTs were: closed kinetic chain upper extremity stability test (CKCUEST), seated shot put (2 hands), unilateral seated shot put, medicine ball throw, modified push-up test and 1-arm hop test. Best evidence synthesis provided moderate positive evidence for the CKCUEST and unilateral seated shot put. Limited positive evidence was available for the medicine ball throw and 1-arm hop test. There are a limited number of upper extremity PPTs used as part of musculoskeletal screening examinations, or as outcome measures in athletic populations. The CKCUEST and unilateral seated shot put are 2 promising PPTs based on moderate evidence. However, the utility of the PPTs in injured populations is unsubstantiated in literature and warrants further investigation. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  19. Test-driven modeling and development of cloud-enabled cyber-physical smart systems

    DEFF Research Database (Denmark)

    Munck, Allan; Madsen, Jan

    2017-01-01

    . Using test-driven modeling (TDM) is likely to be the best way to design smart systems such that these qualities are ensured. However, the TDM methods that are applied to development of simpler systems do not scale to smart systems because the modeling technologies cannot handle the complexity and size...... of the systems. In this paper, we present a method for test-driven modeling that scales to very large and complex systems. The method uses a combination of formal verification of basic interactions, simulations of complex scenarios, and mathematical forecasting to predict system behavior and performance. We...... utilized the method to analyze, design and develop various scenarios for a cloud-enabled medical system. Our approach provides a versatile method that may be adapted and improved for future development of very large and complex smart systems in various domains....

  20. Precarious Rock Methodology for Seismic Hazard: Physical Testing, Numerical Modeling and Coherence Studies

    Energy Technology Data Exchange (ETDEWEB)

    Anooshehpoor, Rasool; Purvance, Matthew D.; Brune, James N.; Preston, Leiph A.; Anderson, John G.; Smith, Kenneth D.

    2006-09-29

    This report covers the following projects: Shake table tests of precarious rock methodology, field tests of precarious rocks at Yucca Mountain and comparison of the results with PSHA predictions, study of the coherence of the wave field in the ESF, and a limited survey of precarious rocks south of the proposed repository footprint. A series of shake table experiments have been carried out at the University of Nevada, Reno Large Scale Structures Laboratory. The bulk of the experiments involved scaling acceleration time histories (uniaxial forcing) from 0.1g to the point where the objects on the shake table overturned a specified number of times. The results of these experiments have been compared with numerical overturning predictions. Numerical predictions for toppling of large objects with simple contact conditions (e.g., I-beams with sharp basal edges) agree well with shake-table results. The numerical model slightly underpredicts the overturning of small rectangular blocks. It overpredicts the overturning PGA for asymmetric granite boulders with complex basal contact conditions. In general the results confirm the approximate predictions of previous studies. Field testing of several rocks at Yucca Mountain has approximately confirmed the preliminary results from previous studies, suggesting that he PSHA predictions are too high, possibly because the uncertainty in the mean of the attenuation relations. Study of the coherence of wavefields in the ESF has provided results which will be very important in design of the canisters distribution, in particular a preliminary estimate of the wavelengths at which the wavefields become incoherent. No evidence was found for extreme focusing by lens-like inhomogeneities. A limited survey for precarious rocks confirmed that they extend south of the repository, and one of these has been field tested.

  1. Towards Modernizing the Characterization of Shock and Detonation Physics Performance via Novel Diagnostics and Tests

    Science.gov (United States)

    Salyer, Terry

    2017-06-01

    For the bulk of detonation performance experiments, a fairly basic set of diagnostic techniques has evolved as the standard for acquiring the necessary measurements. Gold standard techniques such as pin switches and streak cameras still produce the high-quality data required, yet much room remains for improvement with regard to ease of use, cost of fielding, breadth of data, and diagnostic versatility. Over the past several years, an alternate set of diagnostics has been under development to replace many of these traditional techniques. Pulse Correlation Reflectometry (PCR) is a capable substitute for pin switches with the advantage of obtaining orders of magnitude more data at a small fraction of the cost and fielding time. Spectrally Encoded Imaging (SEI) can replace most applications of streak camera with the advantage of imaging surfaces through a single optical fiber that are otherwise optically inaccessible. Such diagnostics advance the measurement state of the art, but even further improvements may come through revamping the standardized tests themselves such as the copper cylinder expansion test. At the core of this modernization, the aforementioned diagnostics play a significant role in revamping and improving the standard test suite for the present era. This research was performed under the auspices of the United States Department of Energy.

  2. Physical Attributes and NFL Combine Performance Tests Between Italian National League and American Football Players: A Comparative Study.

    Science.gov (United States)

    Vitale, Jacopo A; Caumo, Andrea; Roveda, Eliana; Montaruli, Angela; La Torre, Antonio; Battaglini, Claudio L; Carandente, Franca

    2016-10-01

    Vitale, JA, Caumo, A, Roveda, E, Montaruli, A, La Torre, A, Battaglini, CL, and Carandente, F. Physical attributes and NFL Combine performance tests between Italian National League and American football players: a comparative study. J Strength Cond Res 30(10): 2802-2808, 2016-The purpose of this study was to examine anthropometric measurements and the results of a battery of performance tests administered during the National Football League (NFL) Combine between American football players who were declared eligible to participate in the NFL Combine and football players of a top Italian team (Rhinos Milan). Participants (N = 50) were categorized by position into 1 of 3 groups based on playing position: skill players (SP) included wide receivers, cornerbacks, free safeties, strong safeties, and running backs; big skill players (BSP) consisted of fullbacks, linebackers, tight ends, and defensive ends; lineman (LM) included centers, offensive guards, offensive tackles, and defensive tackles. A 1-way analysis of variance followed by the Tukey-Kramer post hoc test was used for comparisons between Italian players by playing position. Ninety-five percent CIs were used for comparisons between American and Italian football for the NFL Combine performance tests. Significant differences for all the variables between the 3 playing categories were observed among the Italian players; LM had higher anthropometric and body composition values than SP (p American football players presented significantly higher anthropometric values and test performance scores when compared with Italian players. Administrators of professional football teams in Italy need to improve the player's physical attributes, so the gap that currently exists between American and Italian players can be reduced, which could significantly improve the quality of American football in Italy.

  3. Mineral Analysis (Cu, Pb and Cd) and Bio-physical Chemistry Test Honey Origin District. Kindang Bulukumba

    OpenAIRE

    Adawiah, Rabiatul; Noor, Alfian; Gaffar, Maming

    2017-01-01

    Honey is a natural product produced by bees that contain nutrients that are very essential. Honey is not only a material sweeteners, flavoring or food, but is also used for drugs. This research aims to know the quality of honey Kindang Bulukumba Subdistrict origin. Mineral content in honey is one of the factors determining the quality of honey, for the analysis of minerals (copper, lead and cadmium) and test of bio-chemical physics with ICP-OES instruments. The concentration of minerals coppe...

  4. Particle Size Measurements From the First Fundamentals of Ice Crystal Icing Physics Test in the NASA Propulsion Systems Laboratory

    Science.gov (United States)

    King, Michael C.; Bachalo, William; Kurek, Andrzej

    2017-01-01

    This paper presents particle measurements by the Artium Technologies, Inc. Phase Doppler Interferometer and High Speed Imaging instruments from the first Fundamental Ice Crystal Icing Physics test conducted in the NASA Propulsion Systems Laboratory. The work focuses on humidity sweeps at a larger and a smaller median volumetric diameter. The particle size distribution, number density, and water content measured by the Phase Doppler Interferometer and High Speed Imaging instruments from the sweeps are presented and compared. The current capability for these two instruments to measure and discriminate ICI conditions is examined.

  5. BLISSatCNR-Pisa: a flexible laser for small scale test experiments on fusion oriented physics

    Science.gov (United States)

    Ciricosta, O.; Labate, L.; Atzeni, S.; Barbini, A.; Batani, D.; Benocci, R.; Cornolti, F.; Galimberti, M.; Gaudio, P.; Giulietti, D.; Gizzi, L. A.; Martellucci, S.; Richetta, M.; Schiavi, A.; Vaselli, M.; Giulietti, A.

    2010-02-01

    By the year 2010 a new laser will be operational at the CNR Campus in Pisa. The laser system will deliver two beams each one providing 1-ns 50-joule pulses of high optical quality and full control of phase. The major feature of the system is its spectral and time shape flexibility ranging from narrowband single mode operation to broadband operation with pulse tailoring. According to previous experiments and recent simulations, these features could critically determine the laser-pellet coupling in the different approaches to laser fusion. The physics involved in the different coupling processes is still not fully investigated experimentally. The BLISS laser, combined with the rest of the ILIL experimental facility, including ultrafast optical probing, time resolved optical X-ray diagnostics and particle detection could contribute to this investigation with ad hoc small scale experiments. The main features of the innovative BLISS laser front end for broadband operation are shown, together with the amplification chain and the main features of the experimental installation. Data from simulations providing a useful input for future experiments are also presented. BLISS is expected to contribute to the preparatory phase of the large scale European HiPER project.

  6. The Laconia, New Hampshire bottom ash paving project: Volume 3, Physical Performance Testing Report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Bottom ash is the principal waste stream from the combustion of municipal solid waste (MSW). It is comprised of grate ash (97%), the slag material discharged at the end of the grate system, and grate sifting (3%), the material that melts or falls through the grate structure. This project was conducted to demonstrate the feasibility of using municipal solid waste grate ash as an aggregate substitute in the construction of a pavement binder course for a portion of Rt. 3 in Laconia, New Hampshire. The research was conducted over a two year period during 1993 and 1994. This study is the culmination of an earlier two year characterization study between 1990 and 1992 that documented the physical and environmental characteristics of the bottom ash as it was produced at the Concord, N.H. waste-to-energy (@) facility and used in an asphaltic binder course. Together, these two studies provide a complete evaluation of the potential for using grate ash or bottom ash in asphalt binder course or as recycled asphalt pavement (RAP) in base courses in pavements.

  7. Detection of regional infrasound signals using array data: Testing, tuning, and physical interpretation.

    Science.gov (United States)

    Park, Junghyun; Stump, Brian W; Hayward, Chris; Arrowsmith, Stephen J; Che, Il-Young; Drob, Douglas P

    2016-07-01

    This work quantifies the physical characteristics of infrasound signal and noise, assesses their temporal variations, and determines the degree to which these effects can be predicted by time-varying atmospheric models to estimate array and network performance. An automated detector that accounts for both correlated and uncorrelated noise is applied to infrasound data from three seismo-acoustic arrays in South Korea (BRDAR, CHNAR, and KSGAR), cooperatively operated by Korea Institute of Geoscience and Mineral Resources (KIGAM) and Southern Methodist University (SMU). Arrays located on an island and near the coast have higher noise power, consistent with both higher wind speeds and seasonably variable ocean wave contributions. On the basis of the adaptive F-detector quantification of time variable environmental effects, the time-dependent scaling variable is shown to be dependent on both weather conditions and local site effects. Significant seasonal variations in infrasound detections including daily time of occurrence, detection numbers, and phase velocity/azimuth estimates are documented. These time-dependent effects are strongly correlated with atmospheric winds and temperatures and are predicted by available atmospheric specifications. This suggests that commonly available atmospheric specifications can be used to predict both station and network detection performance, and an appropriate forward model improves location capabilities as a function of time.

  8. Effects of Periodic Task-Specific Test Feedback on Physical Performance in Older Adults Undertaking Band-Based Resistance Exercise

    Directory of Open Access Journals (Sweden)

    Ryuichi Hasegawa

    2014-01-01

    Full Text Available The purpose of this study was to determine the effects of periodic task-specific test feedback on performance improvement in older adults undertaking community- and home-based resistance exercises (CHBRE. Fifty-two older adults (65–83 years were assigned to a muscular perfsormance feedback group (MPG, n=32 or a functional mobility feedback group (FMG, n=20. Both groups received exactly the same 9-week CHBRE program comprising one community-based and two home-based sessions per week. Muscle performance included arm curls and chair stands in 30 seconds, while functional mobility was determined by the timed up and go (TUG test. MPG received fortnightly test feedback only on muscle performance and FMG received feedback only on the TUG. Following training, there was a significant (P<0.05 interaction for all performance tests with MPG improving more for the arm curls (MPG 31.4%, FMG 15.9% and chair stands (MPG 33.7%, FMG 24.9% while FMG improved more for the TUG (MPG-3.5%, FMG-9.7%. Results from this nonrandomized study suggest that periodic test feedback during resistance training may enhance task-specific physical performance in older persons, thereby augmenting reserve capacity or potentially reducing the time required to recover functional abilities.

  9. Digit ratio (2D:4D) and physical fitness (Eurofit test battery) in school children.

    Science.gov (United States)

    Ranson, R; Stratton, G; Taylor, S R

    2015-05-01

    The relative lengths of the index finger to the ring finger (2D:4D) is sexually dimorphic and is thought to be a correlate of prenatal sex steroids (low 2D:4D=high prenatal testosterone and low prenatal oestrogen). In adults there have been reports that low 2D:4D is consistently associated with high sports performance. To investigate correlations between 2D:4D and fitness levels in children. Right 2D:4D and body size were measured, in addition to flexibility, speed, endurance and strength (Eurofit tests). 922 boys and 835 girls (mean ages (years): 10.8 ± 1.01 and 10.07 ± 1.00 respectively). height, mass, BMI, triceps and subscapular skinfolds, 20 m shuttle run, sit and reach, standing broad jump, hand grip strength, 10 × 5m sprint, and the sit and reach test. Boys significantly outperformed the girls in the 10 × 5m sprints, the 20 m shuttle run, standing broad jump, and hand grip strength. In boys but not girls, 2D:4D was significantly negatively correlated with scores in all these tests except the standing broad jump. In girls but not boys, 2D:4D was significantly positively correlated to stature, mass, BMI and waist circumference. It is suggested that high prenatal testosterone and low prenatal oestrogen (low 2D:4D) is implicated in high sprinting speed, endurance and hand grip strength in boys. In girls low prenatal testosterone and high prenatal oestrogen is associated with large body size. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  10. Mechanical-physical experimental tests on lime mortars and bricks reinforced with hemp

    Science.gov (United States)

    Formisano, Antonio; Dessı, Enzo; Landolfo, Raffaele

    2017-11-01

    Hemp is an agricultural product used for various applications. In the Civil Engineering field, only a limited use of this natural material, called the "green pig" since exploitation of all its constituent parts is allowed, has been done. For this reason, in the paper an experimental activity on lime mortars and bricks reinforced with hemp components has been performed. Compression and bending tests have been carried out on specimens manufactured with hemp shives and fibres, respectively. The achieved results have shown that hemp products change the failure modes from brittle to ductile, leaving basically unaltered the strength capacity of reinforced specimens with respect to unreinforced ones.

  11. Screening for physical inactivity among adults: the value of distance walked in the six-minute walk test. A cross-sectional diagnostic study

    Directory of Open Access Journals (Sweden)

    Evandro Fornias Sperandio

    Full Text Available ABSTRACT: CONTEXT AND OBJECTIVES: Accelerometry provides objective measurement of physical activity levels, but is unfeasible in clinical practice. Thus, we aimed to identify physical fitness tests capable of predicting physical inactivity among adults. DESIGN AND SETTING: Diagnostic test study developed at a university laboratory and a diagnostic clinic. METHODS: 188 asymptomatic subjects underwent assessment of physical activity levels through accelerometry, ergospirometry on treadmill, body composition from bioelectrical impedance, isokinetic muscle function, postural balance on a force platform and six-minute walk test. We conducted descriptive analysis and multiple logistic regression including age, sex, oxygen uptake, body fat, center of pressure, quadriceps peak torque, distance covered in six-minute walk test and steps/day in the model, as predictors of physical inactivity. We also determined sensitivity (S, specificity (Sp and area under the curve of the main predictors by means of receiver operating characteristic curves. RESULTS: The prevalence of physical inactivity was 14%. The mean number of steps/day (≤ 5357 was the best predictor of physical inactivity (S = 99%; Sp = 82%. The best physical fitness test was a distance in the six-minute walk test and ≤ 96% of predicted values (S = 70%; Sp = 80%. Body fat > 25% was also significant (S = 83%; Sp = 51%. After logistic regression, steps/day and distance in the six-minute walk test remained predictors of physical inactivity. CONCLUSION: The six-minute walk test should be included in epidemiological studies as a simple and cheap tool for screening for physical inactivity.

  12. Correlation of Chemical and Physical Test Data for the Environmental Ageing of Tefzel (ETFE). Revised

    Science.gov (United States)

    Morgan, G. J.; Campion, R. P.

    1997-01-01

    In a similar approach to that used for the previously issued correlation report for Coflon (CAPP/M.10), this report aims to identify any correlations between mechanical property changes and chemical/morphological changes for Tefzel, using information supplied in other MERL and TRI project reports. Differences identified with Coflon behaviour will be of scientific interest as well as appropriate to project applications, as Tefzel and Coflon are chemical isomers. Owing to the considerable chemical resistance of Tefzel, much of its testing so far has been based on mechanical properties. Where changes have occurred, chemical analysis can now be targeted more effectively. Relevant test data collated here include: tensile modulus and related properties, permeation coefficients, % crystallinity, some crack growth resistance measurements, and other observations where significant. Fluids based on methanol and amine (Fluid G), a mixture of methane, carbon dioxide and hydrogen sulphide gases plus an aqueous amine solution (Fluid F), and an aromatic oil mix of heptane, cyclohexane, toluene and 1-propanol (Fluid I) have affected Tefzel to varying degrees, and are discussed in some detail herein.

  13. Correlation of Chemical and Physical Test Data for the Environmental Ageing of Tefzel (ETFE)

    Science.gov (United States)

    Morgan, G. J.; Campion, R. P.

    1996-01-01

    In a similar approach to that used for the previously issued correlation report for Coflon (CAPP/M.10), this report aims to identify any correlations between mechanical property changes and chemical/morphological changes for Tefzel, using information supplied in other MERL and TRI project reports (plus latest data which will be included in final reports for Phase 1). Differences identified with Coflon behaviour will be of scientific interest as well as appropriate to project applications, as Tefzel and Coflon are chemical isomers. Owing to the considerable chemical resistance of Tefzel, much of its testing so far has been based on mechanical properties. Where changes have occurred, chemical analysis can now be targeted more effectively. Relevant test data collated here include: tensile modulus and related properties, permeation coefficients, % crystallinity, and other observations where significant. Fluids based on methanol and amine (Fluid G), a mixture of methane, carbon dioxide and hydrogen sulphide gases plus an aqueous amine solution (Fluid F), and an aromatic oil mix of heptane, cyclohexane, toluene and I-propanol (Fluid 1) have affected Tefzel to varying degrees, and are discussed in some detail herein.

  14. User-centered development and testing of a monitoring system that provides feedback regarding physical functioning to elderly people

    Directory of Open Access Journals (Sweden)

    Vermeulen J

    2013-08-01

    Full Text Available Joan Vermeulen,1 Jacques CL Neyens,1 Marieke D Spreeuwenberg,1 Erik van Rossum,1,2 Walther Sipers,3 Herbert Habets,3 David J Hewson,4 Luc P de Witte1,2 1School for Public Health and Primary Care (CAPHRI, Maastricht University, Maastricht, The Netherlands; 2Research Center for Technology in Care, Zuyd University of Applied Sciences, Heerlen, The Netherlands; 3Expertise Center for Elderly Care, Orbis Medical Center, Sittard, The Netherlands; 4Institute Charles Delaunay, Université de Technologie de Troyes, Troyes, France Purpose: To involve elderly people during the development of a mobile interface of a monitoring system that provides feedback to them regarding changes in physical functioning and to test the system in a pilot study. Methods and participants: The iterative user-centered development process consisted of the following phases: (1 selection of user representatives; (2 analysis of users and their context; (3 identification of user requirements; (4 development of the interface; and (5 evaluation of the interface in the lab. Subsequently, the monitoring and feedback system was tested in a pilot study by five patients who were recruited via a geriatric outpatient clinic. Participants used a bathroom scale to monitor weight and balance, and a mobile phone to monitor physical activity on a daily basis for six weeks. Personalized feedback was provided via the interface of the mobile phone. Usability was evaluated on a scale from 1 to 7 using a modified version of the Post-Study System Usability Questionnaire (PSSUQ; higher scores indicated better usability. Interviews were conducted to gain insight into the experiences of the participants with the system. Results: The developed interface uses colors, emoticons, and written and/or spoken text messages to provide daily feedback regarding (changes in weight, balance, and physical activity. The participants rated the usability of the monitoring and feedback system with a mean score of 5

  15. Inference of physical phenomena from FFTF [Fast Flux Test Facility] noise analysis

    International Nuclear Information System (INIS)

    Thie, J.A.; Damiano, B.; Campbell, L.R.

    1989-01-01

    The source of features observed in noise spectra collected by an automated data collection system operated by the Oak Ridge National Laboratory at the Fast Flux Test Facility (FFTF) can be identified using a methodology based on careful data observation and intuition. When a large collection of data is available, as in this case, automatic pattern recognition and parameter storage and retrieval using a data base can be used to extract useful information. However, results can be limited to empirical signature comparison monitoring unless an effort is made to determine the noise sources. This paper describes the identification of several FFTF noise data phenomena and suggests how this understanding may lead to new or enhanced monitoring. 13 refs., 4 figs

  16. Physical and chemical parameters acquisition in situ, in deep clay. Development of sampling and testing methods

    International Nuclear Information System (INIS)

    Lajudie, A.; Coulon, H.; Geneste, P.

    1991-01-01

    Knowledge of deep formation for radioactive waste disposal requires field-tests or bench-scale experiments on samples of the site material. In the case of clay massifs the taking of cores and the sampling of these are particularly difficult. The most suitable materials and techniques were selected from a study of clay colling and conservation methods. These were used for a series of core samples taken at Mol in Belgium. Subsequently permeability measurements were carried out in laboratory on samples from vertical drilling and compared with in situ measurements. The latter were made by horizontal drillings from the shaft excavation of the underground facility HADES at Mol. There is a good overall agreement between the results of the two types of measurements. 25 figs.; 4 tabs.; 12 refs.; 16 photos

  17. Sampling and physical and actinide characterization of colloids from the Grimsel test site

    International Nuclear Information System (INIS)

    Longworth, G.; Ivanovich, M.

    1990-01-01

    Samples of groundwater from a granite fracture at the Grimsel test site in Switzerland have been collected as part of a second intercomparison of groundwater colloid sampling and characterization techniques carried out by members of the Coco Club (colloids and complexes) sponsored by the CEC. This report describes the Harwell contribution to this exercise. The bulk of naturally occurring actinides were found to reside in solution with 10 particles/I (detection limit ∼50 nm) for samples determined by three laboratories. The colloids were shown to be negatively charged using microelectrophoresis and to be relatively stable. There was evidence of a reduction in the pH of the water after storage due to air contamination. This work has served to identify the problems associated with colloid sampling and characterization techniques

  18. Contribution of physical modelling to climate-driven landslide hazard mapping: an alpine test site

    Science.gov (United States)

    Vandromme, R.; Desramaut, N.; Baills, A.; Hohmann, A.; Grandjean, G.; Sedan, O.; Mallet, J. P.

    2012-04-01

    The aim of this work is to develop a methodology for integrating climate change scenarios into quantitative hazard assessment and especially their precipitation component. The effects of climate change will be different depending on both the location of the site and the type of landslide considered. Indeed, mass movements can be triggered by different factors. This paper describes a methodology to address this issue and shows an application on an alpine test site. Mechanical approaches represent a solution for quantitative landslide susceptibility and hazard modeling. However, as the quantity and the quality of data are generally very heterogeneous at a regional scale, it is necessary to take into account the uncertainty in the analysis. In this perspective, a new hazard modeling method is developed and integrated in a program named ALICE. This program integrates mechanical stability analysis through a GIS software taking into account data uncertainty. This method proposes a quantitative classification of landslide hazard and offers a useful tool to gain time and efficiency in hazard mapping. However, an expertise approach is still necessary to finalize the maps. Indeed it is the only way to take into account some influent factors in slope stability such as heterogeneity of the geological formations or effects of anthropic interventions. To go further, the alpine test site (Barcelonnette area, France) is being used to integrate climate change scenarios into ALICE program, and especially their precipitation component with the help of a hydrological model (GARDENIA) and the regional climate model REMO (Jacob, 2001). From a DEM, land-cover map, geology, geotechnical data and so forth the program classifies hazard zones depending on geotechnics and different hydrological contexts varying in time. This communication, realized within the framework of Safeland project, is supported by the European Commission under the 7th Framework Programme for Research and Technological

  19. Test-retest reliability and agreement of physical fall risk assessment tools in adults with intellectual disabilities.

    Science.gov (United States)

    Salb, Johannes; Finlayson, Janet; Almutaseb, Sanaa; Scharfenberg, Bertram; Becker, Clemens; Sieber, Cornel; Freiberger, Ellen

    2015-12-01

    Physical decline and high rates of inactivity lead to an increased risk of falling in the intellectual disability (ID) population. It is important therefore to develop interventions to prevent falls and to develop valid and reliable assessment tools, which are suitable for use with people with ID. Targeting the most important fall risk factors such as strength, balance and gait measurement is important, yet there is a paucity of previous research on testing the feasibility and reliability of strength, balance and gait assessments with people with ID. The aims of this study are (i) to describe the test-retest reliability and agreement [standard error of measurement (SEM)] of slightly adapted fall risk assessments and (ii) to describe the test-retest reliability and SEM of these tests in younger and older age groups and mild/moderate and severe/profound ID-level groups. Residents of a German residential facility for people with ID were asked to take part. The study has a test-retest design, whereby all participants were tested twice, with 7 days in-between the first (T1) and second (T2) testing days. The 'timed up and go', '30-second chair stand', 'handgrip' and 'Romberg balance test' were all performed. Intraclass correlation coefficient (ICC) (2,1) values and SEM were calculated for the full sample, two age groups (split at the age of 60 years) and mild/moderate and severe/profound ID-level groups. A total of 37 residents with a mean age of 59.3 years (standard deviation = 17.7) performed the tests on both testing days. Mainly moderate to excellent ICC values were found for all tests for the full sample and in all groups (0.59-0.97). Different SEM values were found for full sample and sub-groups. Strength, balance and gait assessment tools, which are easy to use and understand, were found to be reliable in adults with ID. The SEM is most important for interpreting the real effects of an intervention. Further analyses will be required to gain more information about

  20. A Test of Social Cognitive Theory to Explain Men's Physical Activity During a Gender-Tailored Weight Loss Program.

    Science.gov (United States)

    Young, Myles D; Plotnikoff, Ronald C; Collins, Clare E; Callister, Robin; Morgan, Philip J

    2016-11-01

    Physical inactivity is a leading contributor to the burden of disease in men. Social-cognitive theories may improve physical activity (PA) interventions by identifying which variables to target to maximize intervention impact. This study tested the utility of Bandura's social cognitive theory (SCT) to explain men's PA during a 3-month weight loss program. Participants were 204 overweight/obese men (M [SD] age = 46.6 [11.3] years; body mass index = 33.1 [3.5] kg/m 2 ). A longitudinal, latent variable structural equation model tested the associations between SCT constructs (i.e., self-efficacy, outcome expectations, intention, and social support) and self-reported moderate-to-vigorous PA (MVPA) and examined the total PA variance explained by SCT. After controlling for Time 1 cognitions and behavior, the model fit the data well (χ 2 = 73.9, degrees of freedom = 39, p social support. This study provides some evidence supporting the tenets of SCT when examining PA behavior in overweight and obese men. Future PA and weight loss interventions for men may benefit by targeting self-efficacy and intention, but the utility of targeting social support and outcome expectations requires further examination. © The Author(s) 2015.

  1. Start-up physics test predictions for Indian Point 3, cycle 7, utilized PHOENIX-P/ANC

    International Nuclear Information System (INIS)

    Powers, M.A.; Buechel, R.J.

    1989-01-01

    The Westinghouse Advanced In-Core Fuel Management System (PHOENIX-P/ANC) was utilized to predict start-up physics test parameters for Indian Point 3 (IP3) cycle 7. This core utilizes a low-leakage loading pattern implementing VANTAGE-5 fuel, which incorporates axial blankets and integral fuel burnable absorbers. Discrete part-length wet annular burnable absorbers (WABAs) are used in some feed assemblies as well. As a measure to reduce vessel fluence, certain peripheral twice-burned assemblies also contain fresh full-length WABAs. The New York Power Authority (NYPA) is using the Westinghouse code system since the methodology was licensed by the U.S. Nuclear Regulatory Commission and because of the user support supplied by Westinghouse. The IP3 cycle 7 PHOENIX-P/ANC model was developed as a joint effort by NYPA and Westinghouse as part of a technology transfer agreement. The PHOENIX-P/ANC model performed very well in start-up physics test predictions and is expected to agree well through cycle depletion. These results have given NYPA further incentive to use the Westinghouse methodology for core follow, loading pattern design determination, and in the safety analysis area

  2. Validation of High-Fidelity Reactor Physics Models for Support of the KJRR Experimental Campaign in the Advanced Test Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Nigg, David W. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Nielsen, Joseph W. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Norman, Daren R. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2017-07-01

    The Korea Atomic Energy Research Institute is currently in the process of qualifying a Low-Enriched Uranium fuel element design for the new Ki-Jang Research Reactor (KJRR). As part of this effort, a prototype KJRR fuel element was irradiated for several operating cycles in the Northeast Flux Trap of the Advanced Test Reactor (ATR) at the Idaho National Laboratory. The KJRR fuel element contained a very large quantity of fissile material (618g 235U) in comparison with historical ATR experiment standards (<1g 235U), and its presence in the ATR flux trap was expected to create a neutronic configuration that would be well outside of the approved validation envelope for the reactor physics analysis methods used to support ATR operations. Accordingly it was necessary, prior to high-power irradiation of the KJRR fuel element in the ATR, to conduct an extensive set of new low-power physics measurements with the KJRR fuel element installed in the ATR Critical Facility (ATRC), a companion facility to the ATR that is located in an immediately adjacent building, sharing the same fuel handling and storage canal. The new measurements had the objective of expanding the validation envelope for the computational reactor physics tools used to support ATR operations and safety analysis to include the planned KJRR irradiation in the ATR and similar experiments that are anticipated in the future. The computational and experimental results demonstrated that the neutronic behavior of the KJRR fuel element in the ATRC is well-understood, both in terms of its general effects on core excess reactivity and fission power distributions, its effects on the calibration of the core lobe power measurement system, as well as in terms of its own internal fission rate distribution and total fission power per unit ATRC core power. Taken as a whole, these results have significantly extended the ATR physics validation envelope, thereby enabling an entire new class of irradiation experiments.

  3. Summary of the geology and physical properties of the Climax Stock, Nevada Test Site

    Science.gov (United States)

    Maldonado, Florian

    1977-01-01

    The Climax stock is a composite stock of Cretaceous age, composed of quartz monzonite and granodiorite, which intrudes sedimentary rocks of Paleozoic and Precambrian age. Tertiary rocks consisting of tuff, welded tuff, and breccia overlie the stock and sedimentary rocks. Hydrothermal alteration of the granodiorite and quartz monzonite is found mainly along the joints and is extensive, but the intensity of alteration varies from place to place. The surrounding sedimentary rocks (carbonates) have been metasomatically altered to tactite and marble as much as 1,500 feet (457 m) from contact with stock; the degree of metamorphism decreasing away from the intrusive. The major faults found in the vicinity of the Climax stock are the Tippinip fault, the Boundary fault, and the Yucca fault. In the stock three prominent joint sets and their average attitudes are N. 32? W., 22? NE.; N 64? W., vertical; and N 35? E., vertical. Two major tunnel complexes have been driven into the Climax stock?the Tiny Tot tunnel complex and Pile Driver-Hard Hat tunnel complex. In the Pile Driver-Hard Hat complex two underground nuclear tests have been conducted.

  4. Validation of Material Models For Automotive Carbon Fiber Composite Structures Via Physical And Crash Testing (VMM Composites Project)

    Energy Technology Data Exchange (ETDEWEB)

    Coppola, Anthony [General Motors Company, Flint, MI (United States); Faruque, Omar [Ford Motor Company, Dearborn, MI (United States); Truskin, James F [FCA US LLC, Auburn Hills, MI (United States); Board, Derek [Ford Motor Company, Dearborn, MI (United States); Jones, Martin [Ford Motor Company, Dearborn, MI (United States); Tao, Jian [FCA US LLC, Auburn Hills, MI (United States); Chen, Yijung [Ford Motor Company, Dearborn, MI (United States); Mehta, Manish [M-Tech International LLC, Dubai (United Arab Emirates)

    2017-09-27

    As automotive fuel economy requirements increase, the push for reducing overall vehicle weight will likely include the consideration of materials that have not previously been part of mainstream vehicle design and manufacturing, including carbon fiber composites. Vehicle manufacturers currently rely on computer-aided engineering (CAE) methods as part of the design and development process, so going forward, the ability to accurately and predictably model carbon fiber composites will be necessary. If composites are to be used for structural components, this need applies to both, crash and quasi-static modeling. This final report covers the results of a five-year, $6.89M, 50% cost-shared research project between Department of Energy (DOE) and the US Advanced Materials Partnership (USAMP) under Cooperative Agreement DE-EE-0005661 known as “Validation of Material Models for Automotive Carbon Fiber Composite Structures Via Physical and Crash Testing (VMM).” The objective of the VMM Composites Project was to validate and assess the ability of physics-based material models to predict crash performance of automotive primary load-carrying carbon fiber composite structures. Simulation material models that were evaluated included micro-mechanics based meso-scale models developed by the University of Michigan (UM) and micro-plane models by Northwestern University (NWU) under previous collaborations with the DOE and Automotive Composites Consortium/USAMP, as well as five commercial crash codes: LS-DYNA, RADIOSS, VPS/PAM-CRASH, Abaqus, and GENOA-MCQ. CAE predictions obtained from seven organizations were compared with experimental results from quasi-static testing and dynamic crash testing of a thermoset carbon fiber composite front-bumper and crush-can (FBCC) system gathered under multiple loading conditions. This FBCC design was developed to demonstrate progressive crush, virtual simulation, tooling, fabrication, assembly, non-destructive evaluation and crash testing

  5. Physical test of a particle simulation model in a sheared granular system

    Energy Technology Data Exchange (ETDEWEB)

    Rycroft, Chris; Orpe, Ashish; Kudrolli, Arshad

    2009-01-15

    We report a detailed comparison of a slow gravity driven sheared granular flow with a computational model performed with the Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). To our knowledge, this is the first thorough test of the LAMMPS model with a laboratory granular flow. In the experiments, grains flow inside a silo with a rectangular cross-section, and are sheared by a rough boundary on one side and smooth boundaries on the other sides. Individual grain position and motion are measured using a particle index matching imaging technique where a fluorescent dye is added to the interstitial liquid which has the same refractive index as the glass beads. The boundary imposes a packing order, and the grains are observed to flow in layers which get progressively more disordered with distance from the walls. The computations use a Cundall--Strack contact model between the grains, using contact parameters that have been used in many other previous studies, and ignore the hydrodynamic effects of the interstitial liquid. Computations are performed to understand the effect of particle coefficient of friction, elasticity, contact model, and polydispersity on mean flow properties. After appropriate scaling, we find that the mean velocity of the grains and the number density as a function of flow cross-section observed in the experiments and the simulations are in excellent agreement. The mean flow profile is observed to be unchanged over a broad range of coefficient of friction, except near the smooth wall. We show that the flow profile is not sensitive to atleast 10\\percent polydispersity in particle size. Because the grain elasticity used is smaller in the computations as compared with glass grains, wave-like features can be noted over short time scales in the mean velocity and the velocity auto-correlations measured in the simulations. These wave features occur over an intermediate timescale larger than the particle interaction but smaller than the

  6. Evaluation of the Initial Isothermal Physics Measurements at the Fast Flux Test Facility, a Prototypic Liquid Metal Fast Breeder Reactor

    Energy Technology Data Exchange (ETDEWEB)

    John D. Bess

    2010-03-01

    The Fast Flux Test Facility (FFTF) was a 400-MWt, sodium-cooled, low-pressure, high-temperature, fast-neutron flux, nuclear fission reactor plant designed for the irradiation testing of nuclear reactor fuels and materials for the development of liquid metal fast breeder reactors (LMFBRs). The FFTF was fueled with plutonium-uranium mixed oxide (MOX) and reflected by Inconel-600. Westinghouse Hanford Company operated the FFTF as part of the Hanford Engineering Development Laboratory (HEDL) for the U.S. Department of Energy on the Hanford Site near Richland, Washington. Although the FFTF was a testing facility not specifically designed to breed fuel or produce electricity, it did provide valuable information for LMFBR projects and base technology programs in the areas of plant system and component design, component fabrication, prototype testing, and site construction. The major objectives of the FFTF were to provide a strong, disciplined engineering base for the LMFBR program, provide fast flux testing for other U.S. programs, and contribute to the development of a viable self-sustaining competitive U.S. LMFBR industry. During its ten years of operation, the FFTF acted as a national research facility to test advanced nuclear fuels, materials, components, systems, nuclear power plant operating and maintenance procedures, and active and passive reactor safety technologies; it also produced a large number of isotopes for medical and industrial users, generated tritium for the U.S. fusion research program, and participated in cooperative, international research work. Prior to the implementation of the reactor characterization program, a series of isothermal physics measurements were performed; this acceptance testing program consisted of a series of control rod worths, critical rod positions, subcriticality measurements, maximum reactivity addition rates, shutdown margins, excess reactivity, and isothermal temperature coefficient reactivity. The results of these

  7. A Pilot Study to Test the Efficacy of Psychologically Based Physical Therapy Training for Treating Deployed U.S. Sailors and Marines with Musculoskeletal Injuries

    Science.gov (United States)

    2017-10-01

    AWARD NUMBER: W81XWH-14-2-0146 TITLE: A Pilot Study to Test the Efficacy of Psychologically Based Physical Therapy Training for Treating...Test the Efficacy of Psychologically Based Physical Therapy Training for Treating Deployed U.S. Sailors and Marines with Musculoskeletal Injuries 5b...documenting psychological risk factors aboard two carriers. We have successfully completed the training of the control carrier. 15. SUBJECT TERMS Back pain

  8. Physical physics

    CERN Multimedia

    Schulman, Mark

    2006-01-01

    "Protons, electrons, positrons, quarks, gluons, muons, shmuons! I should have paid better attention to my high scholl physics teacher. If I had, maybe I could have understood even a fration of what Israeli particle physicist Giora Mikenberg was talking about when explaining his work on the world's largest science experiment." (2 pages)

  9. Physical activity in the pregnant woman and her relationship with the Apgar test in the newborn: a randomized clinical trial.

    Directory of Open Access Journals (Sweden)

    Raquel Rodriguez-Blanque

    2017-05-01

    Full Text Available Introduction: In 1952 Virginia Apgar devised a scoring system to provide birth attendants with a quick and convenient method for reporting newborn status and response to resuscitation. Objective: To evaluate the influence of the physical exercise during the pregnancy on the general state of the neonate through the puncture of Apgar to the 1 minute and to the 5 minutes of life. Material and methods: Randomized clinical trial with 140 healthy pregnant women, aged between 21 and 43 years and divided into two groups, Intervention (n = 70 and Control (n = 70. A Simple Random Sampling is followed, without replenishment. The women were attracted at 12 weeks of gestation in the first trimester ultrasound control in the different obstetrical services in Granada. They joined the programme at week 20 of gestation and ended at week 37. The general assessment of the newborn was performed with the Apgar Test, extracting their score from the medical history of the mother and the newborn. Results: The Apgar score of the Control Group at minute 1 is 9[8-9] and the score of the Intervention Group is 9 [9-9], where p=0.072. Regarding the variable Apgar at minute 5 we see that in the Control Group it is 9[9-10] and in the Intervention Group it is 10[10-10], p <0.001. Conclusion: Moderate intensity physical exercise performed during pregnancy does not present statistically significant differences according to Apgar in the first minute. In this case the APGAR of the fifth minute has a significant difference but does not reach clinical repercussions. That means that physical exercise in a moderate intensity aquatic environment has not influenced the general state of the neonate after childbirth.

  10. Normative Values of Physical Fitness Test in the Elderly: A Community Based Study in an Urban Population in Northeast India

    Directory of Open Access Journals (Sweden)

    Prasanta Kumar Bhattacharya

    2017-10-01

    Full Text Available Introduction: Physical inactivity exposes elderly people to higher risk of diseases. Assessing their functional fitness using fitness assessment tools like Senior Fitness Test (SFT is helpful in geriatric care. Determination of normative values of SFT increases its interpretability of interindividual and intergroup performances scores and usefulness. Aim: To determine normative values of SFT in geriatric population in an urban community setting. Materials and Methods: A community based prospective study in 400 elderly participants (284 men, 116 women, aged >=65 years, selected by multistage random sampling from 60 municipal wards of Guwahati city in Northeast India. Descriptive statistics, percentiles, univariate Analysis of Variance (ANOVA and Bonferroni correction methods were used. A p-value <0.05 was considered significant. Results: Mean ages in males and females were 69.80±3.82 and 67.25±2.57 years. Mean height, weight and BMI in males and females respectively were 165.61±5.36 cm and 161.03±7.93 cm; 63.63±5.99 kg and 55.54±6.74 kg; 23.2±2.03 kg/m2 and 21.5±3.42 kg/m2. Males aged 65-69 years had highest BMI (23.4±2.11 kg/m2 while those =80 had lowest (21.8±1.30 kg/m2. Females aged 70-74 years had highest BMI (23.3±3.50 kg/m2 while 65-69 years (21.3±3.39 kg/m2 had lowest. ‘Armcurl’ test showed maximum values in 70-79 year and 65-69 year age-groups in males and females respectively (11.4±3.89; 14.5±4.63. In ‘chair-stand’ test, maximum values were in 65-69 year for both sexes (males=15.2±4.64; females=13.6±4.26 respectively. In ‘back-scratch’ and ‘chair-sit and reach’ tests, maximum values were found in age-groups 70-74 and 65-69 in males and females respectively (10.5±9.11 and 13.4±8.91; 9.8±7.28 and -8.4±6.92. In ‘8-foot up-and-go’ test, maximum time to perform in males and females were in =80 and 75-79 year groups respectively (13.9±4.11; 20.3±0. In both sexes, maximum values of ‘2-minute step up

  11. A systematic review to determine reliability and usefulness of the field-based test batteries for the assessment of physical fitness in adolescents – The ASSO Project

    Directory of Open Access Journals (Sweden)

    Antonino Bianco

    2015-06-01

    Full Text Available The aim of the present review is to investigate the main field-based tests, used alone or included in sport or fitness batteries, for the assessment of health- and skill-related physical fitness components in adolescents. Different scientific databases were searched through using the selected key words related to physical fitness and its components for adolescence. The search focused on original articles and reviews/meta-analyses using valid, reproducible and feasible tests that fit within the school environment. A total of 100 scientific manuscripts were included in the qualitative synthesis. The present systematic review pointed out 5 fitness tests that well adapt to the evaluation of the components of physical fitness of adolescents within a school environment: the 20 m shuttle run test for cardio-respiratory endurance; the handgrip strength test for upper body maximal strength; the standing broad jump test for lower body maximal strength; the sit-up test to exhaustion for muscular endurance and the 4×10 m shuttle run test for speed, agility and coordination. These fitness tests have been finally selected and incorporated into the Adolescents and Surveillance System for the Obesity prevention – Fitness Test Battery (ASSO-FTB, and will be adopted within the ASSO Project for evaluation purposes. This instrument could be also provided to teachers and people working in schools in order to assess physical fitness of adolescents over time and prevent obesity and related diseases.

  12. Sophisticated Epistemologies of Physics versus High-Stakes Tests: How Do Elite High School Students Respond to Competing Influences about How to Learn Physics?

    Science.gov (United States)

    Yerdelen-Damar, Sevda; Elby, Andrew

    2016-01-01

    This study investigates how elite Turkish high school physics students claim to approach learning physics when they are simultaneously (i) engaged in a curriculum that led to significant gains in their epistemological sophistication and (ii) subject to a high-stakes college entrance exam. Students reported taking surface (rote) approaches to…

  13. Testing the effects of an expectancy-based intervention among adolescents: Can placebos be used to enhance physical health?

    Science.gov (United States)

    Beauchamp, Mark R; Rhodes, Ryan E; Hua, Silvia; Morton, Katie L; Kreutzer, Christiane; Liang, Jennifer A; Khou, Kevin Y K; Dominelli, Paolo B; Daoud, Deana M; Sherman, Megan F B; Dunlop, William L; Sheel, Andrew W

    2011-08-01

    It has been suggested that the well-known health benefits associated with exercise can be explained by a placebo effect, and that greater effort should be given to convince people that their current behaviors have desirable health consequences. The overall purpose of this study was to test the efficacy of this "mind-set matters" hypothesis through the use of an expectancy-based intervention with adolescents. The study involved a four week randomized controlled trial with 348 Grade 9 adolescents (M (age) = 14.07 yrs, SD = 0.30), from four high schools, taking part in either a placebo-intervention condition (n = 188) or a control condition (n = 160). Participants in the placebo-intervention condition were informed that what they are already doing in school physical education lessons fulfills current recommendations for an active lifestyle. Participants in the control condition were not given this information. Four weeks after the intervention, adolescents in the placebo-intervention condition did not demonstrate significant changes in physiological health-related measures (diet, weight, body mass index, percentage body fat, heart rate, mean arterial pressure). The findings question the external validity of the "mind-set matters" hypothesis with adolescents, and suggest that simply encouraging adolescents to believe that they are healthy may not enable them to respond with improved indicators of physical health.

  14. Final report of the Buffer Mass Test - Volume 3: Chemical and physical stability of the buffer materials

    International Nuclear Information System (INIS)

    Pusch, R.

    1985-11-01

    The Buffer Mass Test offered a possibility to investigate whether chemical changes took place in the smectite component at heating to 125 degrees C for about one year. The alterations that could possibly take place were a slight charge change in the crystal lattice with an associated precipitation of silica compounds, and a tendency of illite formation. The analysis showed that there were indications of both but to such a slight extent that the processes could not have affected the physical properties, which was also demonstrated by determining the swelling pressure and the hydraulic conductivity. The BMT also showed that the erodibility of bentonite-based buffer materials is less than or about equal to what can be expected on theoretical grounds. (author)

  15. Beam Test Studies of 3D Pixel Sensors Irradiated Non-Uniformly for the ATLAS Forward Physics Detector

    CERN Document Server

    Grinstein, S; Boscardin, M; Christophersen, M; Da Via, C; Betta, G -F Dalla; Darbo, G; Fadeyev, V; Fleta, C; Gemme, C; Grenier, P; Jimenez, A; Lopez, I; Micelli, A; Nelist, C; Parker, S; Pellegrini, G; Phlips, B; Pohl, D L; Sadrozinski, H F -W; Sicho, P; Tsiskaridze, S

    2013-01-01

    Pixel detectors with cylindrical electrodes that penetrate the silicon substrate (so called 3D detectors) offer advantages over standard planar sensors in terms of radiation hardness, since the electrode distance is decoupled from the bulk thickness. In recent years significant progress has been made in the development of 3D sensors, which culminated in the sensor production for the ATLAS Insertable B-Layer (IBL) upgrade carried out at CNM (Barcelona, Spain) and FBK (Trento, Italy). Based on this success, the ATLAS Forward Physics (AFP) experiment has selected the 3D pixel sensor technology for the tracking detector. The AFP project presents a new challenge due to the need for a reduced dead area with respect to IBL, and the in-homogeneous nature of the radiation dose distribution in the sensor. Electrical characterization of the first AFP prototypes and beam test studies of 3D pixel devices irradiated non-uniformly are presented in this paper.

  16. Department of Physics' Involvement of the Impact Testing Project of the High Speed Civil Transport Program (HSCT)

    Science.gov (United States)

    VonMeerwall, Ernst D.

    1994-01-01

    The project involved the impact testing of a kevlar-like woven polymer material, PBO. The purpose was to determine whether this material showed any promise as a lightweight replacement material for jet engine fan containment. The currently used metal fan containment designs carry a high drag penalty due to their weight. Projectiles were fired at samples of PBO by means of a 0.5 inch diameter Helium powered gun. The Initial plan was to encase the samples inside a purpose-built steel "hot box" for heating and ricochet containment. The research associate's responsibility was to develop the data acquisition programs and techniques necessary to determine accurately the impacting projectile's velocity. Beyond this, the Research Associate's duties include any physical computations, experimental design, and data analysis necessary.

  17. Physical competition increases testosterone among Amazonian forager-horticulturalists: a test of the ‘challenge hypothesis’

    Science.gov (United States)

    Trumble, Benjamin C.; Cummings, Daniel; von Rueden, Christopher; O'Connor, Kathleen A.; Smith, Eric A.; Gurven, Michael; Kaplan, Hillard

    2012-01-01

    The challenge hypothesis posits that acute increases in testosterone (T) during male–male competition enhance performance and survivability while limiting the physiological costs of consistently high T. Human challenge hypothesis research focuses on young men in industrial populations, who have higher baseline T levels than men in subsistence populations. We tested whether the Tsimane, pathogenically stressed forager-horticulturalists of the Bolivian Amazon, would express acute T increases in response to physical competition. Saliva was collected from 88 Tsimane men (aged 16–59 years) before and after a competitive soccer match. Tsimane men had significantly lower baseline levels of T (β = −0.41, p Tsimane males exhibit acute increases in T at the same relative magnitude reported by studies in industrialized settings, with larger increases in T for those who report better individual performance. PMID:22456888

  18. Development and reliability testing of the Nordic Housing Enabler – an instrument for accessibility assessment of the physical housing

    DEFF Research Database (Denmark)

    Helle, Tina

    2009-01-01

    Abstract. For decades, accessibility to the physical housing environment for people with functional limitations has been of interest politically, professionally and for the users. Guidelines and norms on accessible housing design have gradually been developed, however, the built environment shows...... serious deficits when it comes to accessibility. This study addresses development of a content valid cross-Nordic version of the Housing Enabler and investigation of inter-rater reliability, when used in occupational therapy practice. The instrument was translated from the original Swedish version...... and adapted according to accessibility norms and guidelines for housing design in Sweden, Denmark, Iceland and Finland. This iterative process involved occupational therapists, architects, building engineers and professional translators, resulting in the Nordic Housing Enabler. For reliability testing...

  19. A test of cognitive mediation in a 12-month physical activity workplace intervention: does it explain behaviour change in women?

    Directory of Open Access Journals (Sweden)

    Pickering Michael A

    2010-05-01

    Full Text Available Abstract Background Attempts to demonstrate the efficacy of interventions aimed at increasing physical activity (PA have been mixed. Further, studies are seldom designed in a manner that facilitates the understanding of how or why a treatment is effective or ineffective and PA intervention designs should be guided by a heavier reliance upon behavioral theory. The use of a mediating variable framework offers a systematic methodological approach to testing the role of theory, and could also identify the effectiveness of specific intervention components. The primary purpose of this paper was to test the mediating role that cognitive constructs may have played in regards to the positive effect that a workplace behavioral intervention had on leisure-time PA for women. A subsidiary purpose was to examine the cross-sectional relationships of these cognitive constructs with PA behavior. Methods The Physical Activity Workplace Study was a randomized controlled trial which compared the effects of stage-matched and standard print materials upon self-reported leisure-time PA, within a workplace sample at 6 and 12-months. In this secondary analysis we examined the mediation effects of 14 psychosocial constructs across 3 major social-cognitive theories which were operationalized for the intervention materials and measured at baseline, 6 and 12-months. We examined change in PA and change in the psychological constructs employing a mediation strategy proposed by Baron and Kenny for: (1 the first 6-months (i.e., initial change, (2 the second 6-months (i.e., delayed change, and (3 the entire 12-months (overall change of the study on 323 women (n = 213 control/standard materials group; n = 110 stage-matched materials group. Results Of the 14 constructs and 42 tests (including initial, delayed and overall change two positive results were identified (i.e., overall change in pros, initial change in experiential powerful intervention approaches processes, with very

  20. [The circulatory system in children with cutaneous forms of scleroderma. The results of routine as well as 24-hour ECG and physical performance test].

    Science.gov (United States)

    Rokicki, W; Rubisz-Brzezińska, J; Dukalska, M; Rzepecka, I; Gasior, Z; Gołba, E; Nowak, Z

    1995-06-01

    Thirty-four children suffering from so-called cutaneous forms of scleroderma were studied (physical examination, routine and 24-hour ECG, and physical performance test). Physical development was significantly impaired in 5 cases. Congenital heart malformations with left-to-right shunt were detected in 3 children. These children underwent surgery with good results. Heart murmur was found during physical examination in 14 cases. In 30 subjects routine ECG was described as abnormal or doubtful. Abnormal Holter monitoring results were found in 13 children. The authors were not able to detect inferior physical performance test results in the studied children as compared to the control group (when the children suffering from congenital heart malformations and resting tachycardia were excluded from the study). It is suggested that children suffering from so-called cutaneous forms of scleroderma should remain under constant cardiological care.

  1. Test

    DEFF Research Database (Denmark)

    Bendixen, Carsten

    2014-01-01

    Bidrag med en kortfattet, introducerende, perspektiverende og begrebsafklarende fremstilling af begrebet test i det pædagogiske univers.......Bidrag med en kortfattet, introducerende, perspektiverende og begrebsafklarende fremstilling af begrebet test i det pædagogiske univers....

  2. Testes físico-mecânicos e físico-químicos do couro da tilápia vermelha Physical-mechanical and physical-chemical tests of red tilapia leather

    Directory of Open Access Journals (Sweden)

    L.C. Godoy

    2010-04-01

    Full Text Available Realizaram-se testes físico-mecânicos e físico-químicos em couro de tilápia vermelha (Oreochromis spp. a fim de testar a sua resistência. As amostras foram distribuídas em delineamento inteiramente ao acaso com dois tratamentos: no T1, procedeu-se à retirada do corpo-de-prova no sentido longitudinal e, no T2, à retirada do corpo-de-prova no sentido transversal. Para os testes de determinação da resistência à tração, alongamento e rasgamento progressivo, foi utilizado o dinamômetro EMIC, com velocidade de afastamento entre as cargas de 100 ± 20mm/min, em ambiente climatizado (± 23ºC e UR do ar de 50%, por 24 horas. A espessura do couro variou de 0,61 a 0,75mm, mas não houve diferença entre os sentidos analisados. O couro apresentou maior resistência à tração no sentido transversal, 25,89N/mm², (PPhysical-mechanical and physical-chemical tests were carried out on red tilapia leather. They were distributed in a completely randomized design with two treatments: T1 = longitudinal body of proof; T2 = transversal body of proof. It was used the EMIC dynamometer for the tests of resistance to traction and elongation and the progressive tearing, with the speed of 100±20mm/min away between the charges, in an acclimatized room (±23°C and relative humidity of 50% during 24 hours. The thickness of the analyzed leathers ranged from 0.61 to 0.75mm, without differing between the analyzed ways. The leather demonstrated a higher resistance to traction in the transversal direction (25.89N/mm² (P<0.01, when compared to the longitudinal one (14.20N/mm². However, the elongation was significantly higher (P<0.05 in the longitudinal direction (80.8% when compared to the transversal (62.6%. There was no significant difference for the progressive tearing between the treatments (longitudinal = 18.56N/mm; transversal = 21.90N/mm. The leather demonstrated a content of 3.8% of chromium oxide, 15.1% of grease, and pH and difference value of 3

  3. Assessment of functioning in the acute hospital: operationalisation and reliability testing of ICF categories relevant for physical therapists interventions.

    Science.gov (United States)

    Grill, Eva; Gloor-Juzi, Thomas; Huber, Erika O; Stucki, Gerold

    2011-01-01

    To operationalize items based on categories of the International Classification of Functioning, Disability and Health (ICF) relevant to patient problems that are addressed by physiotherapeutic interventions in the acute hospital, and to test the reliability of these items when applied by physiotherapists. A selection of 124 ICF categories was operation-alized in a formal decision-making and consensus process. The reliability of the newly operationalized item list was tested with a cross-sectional study with repeated measurements. The item writing process resulted in 94 dichotomous and 30 polytomous items. Data were collected in a convenience sample of 28 patients with neurological, musculoske-letal, cardiopulmonary, or internal organ conditions, requiring physical therapy in an acute hospital. Fifty-six percent of the polytomous and 68% of the dichotomous items had a raw agreement of 0.7 or above, whereas 36% of all polytomous and 34% of all dichotomous items had a kappa coefficient of 0.7 and above. The study supports that the ICF is adaptable to professional and setting-specific needs of physiotherapists. Further research towards the development of reliable instruments for physiotherapists based on the ICF seems justified. :

  4. Geographic-didactical games as interactive tools to test and improve student's basic knowledge in Physical Geography

    Science.gov (United States)

    Winkler, S.; Tintrup Gen. Suntrup, A.

    2009-04-01

    Due to an increasing disproportion between experienced teaching staff and student numbers at German universities, the time available for teaching the fundamental basic knowledge in Physical Geography was condensed during the past decade. Unfortunately, this mainly has been achieved at the expense of practical lessons of testing student's knowledge. The recent introduction of the Bachelor/Master degree has not solved this problem, but rather accelerated that tend. The "losers" of this tendency are those students enrolled in trainee teacher studies in Geography. In conjunction with the recent modifications of the study programs putting more focus on applied or specialized fields of Geography and its methodology, the trainee teacher students often express their critics and urgently demand opportunities to improve and test their basic knowledge (because it is especially that knowledge, they need at school and for their traditional examination). As the study program is quite dense, there is no room for special courses or seminars. By contrast, one has to use some free time slots available e.g. in the evenings of the usually quite long German excursions or of weekend seminars. However, after a day in the field or in the classroom, the teacher has to find a method owing enough excitement and clearly visible benefit for the students to achieve sufficient motivation. Interactive geographic-didactical games have been developed exclusively for this purpose and applied at different occasions. Those games had the goal of testing student's basic knowledge in a rather unconventional and "casual" style in order to motivate active participation. Most of the games could be played in small groups of students with the teacher only occasionally being involved as referee. Of course, the games had the general aim of improving the basic knowledge - or at least give the students the possibility to discover their own strength (or weakness) just before it is too late (as it e.g. would be

  5. Development and Reliability Testing of a Health Action Process Approach Inventory for Physical Activity Participation among Individuals with Schizophrenia.

    Science.gov (United States)

    Arbour-Nicitopoulos, Kelly P; Duncan, Markus; Remington, Gary; Cairney, John; Faulkner, Guy E

    2014-01-01

    Individuals with schizophrenia tend to have high levels of cardiovascular disease and lower physical activity (PA) levels than the general population. Research is urgently required in developing evidence-based behavioral interventions for increasing PA in this population. One model that has been increasingly used to understand the mechanisms underlying PA is the health action process approach (HAPA). The purpose of this study was to adapt and pilot-test a HAPA-based inventory that reliably captures salient, modifiable PA determinants for individuals with schizophrenia. Initially, 12 outpatients with schizophrenia reviewed the inventory and provided verbal feedback regarding comprehension, item relevance, and potential new content. A content analysis framework was used to inform modifications to the inventory. The resultant inventory underwent a quantitative assessment of internal consistency and test-retest reliability. Twenty-five outpatients (M age = 41.5 ± 13.5 years; 64% male) completed the inventory on two separate occasions, 1 week apart. All but two scales showed good internal consistency (Cronbach's α = 0.62-0.98) and test-retest correlations (rs = 0.21-0.96). Preliminary assessment of criterion validity of the HAPA inventory showed significant, large-sized correlations between behavioral intentions and both affective outcome expectancies and task self-efficacy, and small to moderate correlations between self-reported minutes of moderate-to-vigorous PA and the volitional constructs of the HAPA model. These findings provide preliminary support for the reliability and validity of the first-ever inventory for examining theory-based predictors of moderate-to-vigorous PA intentions and behavior among individuals with schizophrenia. Further validation research with this inventory using an objective measure of PA behavior will provide additional support for its psychometric properties within the schizophrenia population.

  6. Testing Usability and Acceptability of a Web Application to Promote Physical Activity (iCanFit) Among Older Adults

    Science.gov (United States)

    Goldberg, Daniel; Dahlke, Deborah Vollmer; Ory, Marcia G; Cargill, Jessica S; Coughlin, Rachel; Hernandez, Edgar; Kellstedt, Debra K; Peres, S Camille

    2014-01-01

    Background Most older Americans do not exercise regularly and many have chronic conditions. Among an increasing number of fitness mobile and Web apps, few are designed for older adults with chronic conditions despite high ownership rates of mobile tools and Internet access in this population. We designed a mobile-enabled Web app, iCanFit, to promote physical activity in this population. Objective This study aimed to test the usability and acceptability of iCanFit among older adults in a community setting. Methods A total of 33 older adults (aged 60 to 82 years) were recruited from communities to test iCanFit. Of these 33, 10 participants completed the usability testing in a computer room of a senior community center. A research assistant timed each Web application task and observed user navigation behavior using usability metrics. The other 23 participants used the website on their own devices at home and provided feedback after 2-3 weeks by completing a user-experience survey assessing ease of use, helpfulness, and satisfaction with iCanFit. Results Participants completed all 15 tasks on the iCanFit site in an average of 31 (SD 6.9) minutes; some tasks required more time or needed assistance. Participants’ comments were addressed to improve the site’s senior friendliness and ease of use. In the user-experience survey, participants reported high levels of usefulness and satisfaction. More than 56% (13/23) of participants indicated they would continue using the program and recommend it to their families or friends. Conclusions Testing usability and acceptability is a very important step in developing age-appropriate and user-friendly Web apps, especially for older adults. Testing usability and acceptability in a community setting can help reveal users’ experiences and feedback in a real-life setting. Our study suggested that older adults had a high degree of acceptance of iCanFit and could use it easily. The efficacy trial of iCanFit is currently underway

  7. Engineering Development of Advanced Physical Fine Coal Cleaning for Premium Fuel Applications: Task 9 - Selective agglomeration Module Testing and Evaluation.

    Energy Technology Data Exchange (ETDEWEB)

    Moro, N.` Jha, M.C.

    1997-09-29

    The primary goal of this project was the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope included laboratory research and bench-scale testing of both processes on six coals to optimize the processes, followed by the design, construction, and operation of a 2 t/hr process development unit (PDU). The project began in October, 1992, and is scheduled for completion by September 1997. This report summarizes the findings of all the selective agglomeration (SA) test work performed with emphasis on the results of the PDU SA Module testing. Two light hydrocarbons, heptane and pentane, were tested as agglomerants in the laboratory research program which investigated two reactor design concepts: a conventional two-stage agglomeration circuit and a unitized reactor that combined the high- and low-shear operations in one vessel. The results were used to design and build a 25 lb/hr bench-scale unit with two-stage agglomeration. The unit also included a steam stripping and condensation circuit for recovery and recycle of heptane. It was tested on six coals to determine the optimum grind and other process conditions that resulted in the recovery of about 99% of the energy while producing low ash (1-2 lb/MBtu) products. The fineness of the grind was the most important variable with the D80 (80% passing size) varying in the 12 to 68 micron range. All the clean coals could be formulated into coal-water-slurry-fuels with acceptable properties. The bench-scale results were used for the conceptual and detailed design of the PDU SA Module which was integrated with the existing grinding and dewatering circuits. The PDU was operated for about 9 months. During the first three months, the shakedown testing was performed to fine tune the operation and control of various equipment. This was followed by parametric testing, optimization/confirmatory testing, and finally a

  8. Long-term impact of pre-operative physical rehabilitation protocol on the 6-min walk test of patients with adolescent idiopathic scoliosis: A randomized clinical trial

    Directory of Open Access Journals (Sweden)

    V.L. dos Santos Alves

    2015-05-01

    Full Text Available Background: Monitored physical activities in patients with adolescent idiopathic scoliosis (AIS have been shown to improve physical performance, endurance and cardiopulmonary function and may be assessed by the 6-min walk test (6MWT. We aimed to evaluate the long-term results of the 6MWT after a rehabilitation protocol employed before surgical correction for AIS. Methods: This prospective randomized clinical trial studied the impact of a 4-month pre-operative physical rehabilitation protocol on post-operative cardiopulmonary function and physical endurance, by using the 6MWT, in patients with AIS submitted to surgical correction, comparing them to matched controls without physical rehabilitation. Studied variables were heart and respiratory rate, systolic and diastolic blood pressure, peripheral blood oxygen saturation, Borg score, and distance walked. Patients were assessed at baseline, after 4 months of rehabilitation, and 3, 6 and 12 months post-operatively. Results: A total of 50 patients with AIS were included in the study and allocated blindly, by simple randomization, into either one of the two groups, with 25 patients each: study group (pre-operative physical rehabilitation and control group. The physical rehabilitation protocol promoted significant progressive improvement in heart and respiratory rate, peripheral blood oxygen saturation, distance walked, and level of effort assessed by the Borg scale after surgery. Conclusions: Post-surgical recovery, evaluated by 6MWT, was significantly better in patients who underwent a 4-month pre-operative physical rehabilitation protocol. Keywords: Scoliosis, Exercise, Exercise movement techniques, Exercise therapy, Exercise test

  9. Testing the effect of text messaging cues to promote physical activity habits: a worksite-based exploratory intervention.

    Science.gov (United States)

    Fournier, M; d'Arripe-Longueville, F; Radel, R

    2017-10-01

    This study aims to test the efficacy of text messaging cues (SMS) to promote physical activity (PA) habit formation in the workplace. Employees (N = 49; 28 females and 21 males, Mage = 47.5 ± 8.29 years) were randomized into two parallel groups: a PA group enrolled in a 28-week supervised PA program and a PA+SMS group enrolled in the same PA program with text messaging cues received before their PA sessions. The exercise habit was assessed every week from self-reports on an online application. PA maintenance and several physical fitness measures were also assessed prior to and after the intervention to evaluate its general impact. Mixed model analysis of the 603 observations indicated a small but significant effect of the SMS cues on the speed at which participants engaged in PA behaviors, as the significant interaction effect revealed that the slope of the exercise habit over time was slightly steeper in the PA+SMS group (B = 0.0462, P = 0.0001) than in the PA group (B = 0.0216, P = 0.01). SMS delivery had a marginal effect on the maintenance of PA behaviors 1 year after the intervention. The results suggest that text messaging can help to form PA habits at the workplace and might facilitate long-term maintenance of PA behaviors. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  10. Mobile internet service for self-management of physical activity in people with rheumatoid arthritis: evaluation of a test version.

    Science.gov (United States)

    Revenäs, Åsa; Opava, Christina H; Ahlén, Henrik; Brusewitz, Maria; Pettersson, Susanne; Åsenlöf, Pernilla

    2016-01-01

    Life-long adherence to health-enhancing physical activity (PA) is a major challenge for people with rheumatoid arthritis (RA). Our aim was to evaluate the utilisation of and experiences with a RA-specific, mobile internet PA support service, 'tRAppen', developed through a co-design process. 28 participants with RA formed 3 web communities and tested tRAppen for 6 weeks. A mixed-method design was used to combine different types of data. Log data and questionnaire data were analysed quantitatively, while data from telephone interviews were analysed with a directed content analysis. 25 of the 28 participants used tRAppen. Log data indicated that a majority of them registered their PA, sent likes and posted comments to peers, set personal goals and made exercise plans. tRAppen was rated as easy and fun to use, and fairly informative and supportive for PA, and was highly recommended for people with RA. The interview analysis resulted in the following 6 categories describing the utilisation of and experiences with tRAppen: (1) experiences in general, (2) feasibility of features, (3) value as support for PA, (4) enjoyment, (5) ideas for improvements and (6) additional factors. tRAppen is the first co-designed mobile internet service developed specifically for the self-management of PA in people with RA. The results are promising and indicate that tRAppen may be useful for supporting a physically active lifestyle in a subpopulation at certain risk of poor health. It will now be revised, launched and continuously updated in an iterative process involving its future users.

  11. DEVELOPMENT AND TESTING OF PROCEDURES FOR CARRYING OUT EMERGENCY PHYSICAL INVENTORY TAKING AFTER DETECTING ANOMALY EVENTS CONCERNING NM SECURITY

    International Nuclear Information System (INIS)

    VALENTE, J.; FISHBONE, L.

    2003-01-01

    In the State Scientific Center of Russian Federation - Institute of Physics and Power Engineering (SSC RF-IPPE, Obninsk), which is under Minatom jurisdiction, the procedures for carrying out emergency physical inventory taking (EPIT) were developed and tested in cooperation with the Brookhaven National Laboratory (USA). Here the emergency physical inventory taking means the PIT, which is carried out in case of symptoms indicating a possibility of NM loss (theft). Such PIT often requires a verification of attributes and quantitative characteristics for all the NM items located in a specific Material Balance Area (MBA). In order to carry out the exercise, an MBA was selected where many thousands of NM items containing highly enriched uranium are used. Three clients of the computerized material accounting system (CMAS) are installed in this MBA. Labels with unique (within IPPE site) identification numbers in the form of digit combinations and an appropriate bar code have been applied on the NM items, containers and authorized locations. All the data to be checked during the EPIT are stored in the CMAS database. Five variants of anomalies initiating EPIT and requiring different types of activities on EPIT organization are considered. Automatic working places (AWP) were created on the basis of the client computers in order to carry out a large number of measurements within a reasonable time. In addition to a CMAS client computer, the main components of an AWP include a bar-code reader, an electronic scale and an enrichment meter with NaI--detector--the lMCA Inspector (manufactured by the Canberra Company). All these devices work together with a client computer in the on-line mode. Special computer code (Emergency Inventory Software-EIS) was developed. All the algorithms of interaction between the operator and the system, as well as algorithms of data exchange during the measurements and data comparison, are implemented in this software. Registration of detected

  12. Development and Validation of Scientific Literacy Achievement Test to Assess Senior Secondary School Students' Literacy Acquisition in Physics

    Science.gov (United States)

    Adeleke, A. A.; Joshua, E. O.

    2015-01-01

    Physics literacy plays a crucial part in global technological development as several aspects of science and technology apply concepts and principles of physics in their operations. However, the acquisition of scientific literacy in physics in our society today is not encouraging enough to the desirable standard. Therefore, this study focuses on…

  13. Evaluation of the theory-based Quality Improvement in Physical Therapy (QUIP) programme: a one-group, pre-test post-test pilot study

    NARCIS (Netherlands)

    Rutten, Geert M.; Harting, Janneke; Bartholomew, L. Kay; Schlief, Angelique; Oostendorp, Rob Ab; de Vries, Nanne K.

    2013-01-01

    Guideline adherence in physical therapy is far from optimal, which has consequences for the effectiveness and efficiency of physical therapy care. Programmes to enhance guideline adherence have, so far, been relatively ineffective. We systematically developed a theory-based Quality Improvement in

  14. From concept to reality – A review to the primary test stand and its preliminary application in high energy density physics

    OpenAIRE

    Deng, Jianjun; Xie, Weiping; Feng, Shuping; Wang, Meng; Li, Hongtao; Song, Shengyi; Xia, Minghe; Ce, Ji; He, An; Tian, Qing; Gu, Yuanchao; Guan, Yongchao; Wei, Bin; Huang, Xianbin; Ren, Xiaodong

    2016-01-01

    Pulsed power technology, whereas the electrical energy stored in a relative long period is released in much shorter timescale, is an efficient method to create high energy density physics (HEDP) conditions in laboratory. Around the beginning of this century, China Academy of Engineering Physics (CAEP) began to build some experimental facilities for HEDP investigations, among which the Primary Test Stand (PTS), a multi-module pulsed power facility with a nominal current of 10 MA and a current ...

  15. Assessment of diet and physical activity of brazilian schoolchildren: usability testing of a web-based questionnaire.

    Science.gov (United States)

    da Costa, Filipe Ferreira; Schmoelz, Camilie Pacheco; Davies, Vanessa Fernandes; Di Pietro, Patrícia Faria; Kupek, Emil; de Assis, Maria Alice Altenburg

    2013-08-19

    Information and communication technology (ICT) has been used with increasing frequency for the assessment of diet and physical activity in health surveys. A number of Web-based questionnaires have been developed for children and adolescents. However, their usability characteristics have scarcely been reported, despite their potential importance for improving the feasibility and validity of ICT-based methods. The objective of this study was to describe the usability evaluation of the Consumo Alimentar e Atividade Física de Escolares (CAAFE) questionnaire (Food Consumption and Physical Activity Questionnaire for schoolchildren), a new Web-based survey tool for the self-assessment of diet and physical activity by schoolchildren. A total of 114 schoolchildren aged 6 to 12 years took part in questionnaire usability testing carried out in computer classrooms at five elementary schools in the city of Florianopolis, Brazil. Schoolchildren used a personal computer (PC) equipped with software for recording what is on the computer screen and the children's speech during usability testing. Quantitative and qualitative analyses took into account objective usability metrics such as error counts and time to complete a task. Data on the main difficulties in accomplishing the task and the level of satisfaction expressed by the children were assessed by the observers using a standardized form and interviews with the children. Descriptive statistics and content analysis were used to summarize both the quantitative and the qualitative aspects of the data obtained. The mean time for completing the questionnaire was 13.7 minutes (SD 3.68). Compared to the children in 2nd or 3rd grades, those in 4th or 5th grades spent less time completing the questionnaire (median 12.4 vs 13.3 minutes, P=.022), asked for help less frequently (median 0 vs 1.0 count, P=.005), had a lower error count (median 2.0 vs 8.0 count, P<.001), and obtained a higher overall performance score (median 73.0 vs 68.0, P

  16. The characterization, replication and testing of dermal denticles of Scyliorhinus canicula for physical mechanisms of biofouling prevention

    Energy Technology Data Exchange (ETDEWEB)

    Sullivan, Timothy; Regan, Fiona, E-mail: fiona.regan@dcu.ie [Marine and Environmental Sensing Technology Hub (MESTECH), National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9 (Ireland)

    2011-12-15

    There is a current need to develop novel non-toxic antifouling materials. The mechanisms utilized by marine organisms to prevent fouling of external surfaces are of interest in this regard. Biomimicry of these mechanisms and the ability to transfer the antifouling characteristics of these surfaces to artificial surfaces are a highly attractive prospect to those developing antifouling technologies. In order to achieve this, the mechanisms responsible for any antifouling ability must be elucidated from the study of the natural organism and the critical surface parameters responsible for fouling reduction. Dermal denticles of members of the shark family have been speculated to possess some natural, as yet unidentified antifouling mechanism related to the physical presence of denticles. In this study, the dermal denticles of one particular member of the slow-swimming sharks, Scyliorhinus canicula were characterized and it was found that a significant natural variation in denticle dimensions exists in this species. The degree of denticle surface contamination was quantified on denticles at various locations and it was determined that the degree of contamination of the dorsal surface of denticles varies with the position on the shark body. In addition, we successfully produced synthetic sharkskin samples using the real skin as a template. Testing of the produced synthetic skin in field conditions resulted in significant differences in material attachment on surfaces exhibiting denticles of different dimensions.

  17. Laboratory Tests of Substrate Physical Properties May Not Represent the Retention Capacity of Green Roof Substrates In Situ

    Directory of Open Access Journals (Sweden)

    Christopher Szota

    2017-11-01

    Full Text Available Green roofs can be used to reduce the volume of polluted stormwater that is generated by cities. Modelling rainfall retention is critical, but green roof water balance models often rely on the physical properties of substrates. In these models, substrate water holding capacity (WHC determines the depth of water which can be stored before runoff is generated; whereas, the permanent wilting point (PWP limits evapotranspiration. The WHC and PWP, as well as plant available water (PAW; where PAW = WHC − PWP, as determined from laboratory tests, may not truly reflect how substrates perform on green roofs. We therefore ran a simulated rainfall experiment on green roof modules to (i compare the rainfall retention of vegetated and non-vegetated substrates with different WHC and PAW, and (ii relate retention to substrate storage capacity, as calculated from laboratory measures of WHC and PAW. We found that the PAW of a substrate is a better indicator of evapotranspiration and retention when compared with WHC. However, we also found that substrates always retained less water than their calculated storage capacity would suggest, most likely being due to their high permeability. Our results indicate that using laboratory-derived measures of WHC and PAW in green roof models may be over-estimating both evapotranspiration and rainfall retention.

  18. The characterization, replication and testing of dermal denticles of Scyliorhinus canicula for physical mechanisms of biofouling prevention.

    Science.gov (United States)

    Sullivan, Timothy; Regan, Fiona

    2011-12-01

    There is a current need to develop novel non-toxic antifouling materials. The mechanisms utilized by marine organisms to prevent fouling of external surfaces are of interest in this regard. Biomimicry of these mechanisms and the ability to transfer the antifouling characteristics of these surfaces to artificial surfaces are a highly attractive prospect to those developing antifouling technologies. In order to achieve this, the mechanisms responsible for any antifouling ability must be elucidated from the study of the natural organism and the critical surface parameters responsible for fouling reduction. Dermal denticles of members of the shark family have been speculated to possess some natural, as yet unidentified antifouling mechanism related to the physical presence of denticles. In this study, the dermal denticles of one particular member of the slow-swimming sharks, Scyliorhinus canicula were characterized and it was found that a significant natural variation in denticle dimensions exists in this species. The degree of denticle surface contamination was quantified on denticles at various locations and it was determined that the degree of contamination of the dorsal surface of denticles varies with the position on the shark body. In addition, we successfully produced synthetic sharkskin samples using the real skin as a template. Testing of the produced synthetic skin in field conditions resulted in significant differences in material attachment on surfaces exhibiting denticles of different dimensions.

  19. The characterization, replication and testing of dermal denticles of Scyliorhinus canicula for physical mechanisms of biofouling prevention

    International Nuclear Information System (INIS)

    Sullivan, Timothy; Regan, Fiona

    2011-01-01

    There is a current need to develop novel non-toxic antifouling materials. The mechanisms utilized by marine organisms to prevent fouling of external surfaces are of interest in this regard. Biomimicry of these mechanisms and the ability to transfer the antifouling characteristics of these surfaces to artificial surfaces are a highly attractive prospect to those developing antifouling technologies. In order to achieve this, the mechanisms responsible for any antifouling ability must be elucidated from the study of the natural organism and the critical surface parameters responsible for fouling reduction. Dermal denticles of members of the shark family have been speculated to possess some natural, as yet unidentified antifouling mechanism related to the physical presence of denticles. In this study, the dermal denticles of one particular member of the slow-swimming sharks, Scyliorhinus canicula were characterized and it was found that a significant natural variation in denticle dimensions exists in this species. The degree of denticle surface contamination was quantified on denticles at various locations and it was determined that the degree of contamination of the dorsal surface of denticles varies with the position on the shark body. In addition, we successfully produced synthetic sharkskin samples using the real skin as a template. Testing of the produced synthetic skin in field conditions resulted in significant differences in material attachment on surfaces exhibiting denticles of different dimensions.

  20. The Physical Clogging of the Landfill Leachate Collection System in China: Based on Filtration Test and Numerical Modelling

    Directory of Open Access Journals (Sweden)

    Yili Liu

    2018-02-01

    Full Text Available Clogging of the leachate collection system (LCS has been a common operation problem in municipal solid waste (MSW landfills in China, which can result in high water levels that threaten the safety of landfill operations. To determine the cause of failure in an LCS, raw leachate from a municipal solid waste transfer station was collected and the high content of particulate matter was characterized. Based on the parameters obtained in a filtration test, a numerical simulation was performed to estimate the influence of particle deposition on drainage system clogging. The results showed that LCSs were confronted with the risk of clogging due to the deposition of particulate matter resulting from the higher concentration of total suspended solids (TSS level > 2200 mg L−1 and larger particle size (>30% TSS particles > 15 μm in the leachate. On one hand, the non-woven geotextile, as the upper layer of the LCS, retained most particulate matter of large diameters, reducing its hydraulic conductivity to approximately 10−8 to 10−9 m s−1 after 1–2 years of operation and perching significant leachate above it (0.6–0.7 m. On the other hand, the geotextile prevented the gravel layer from physically clogging and minimized the leachate head above the bottom liner. Therefore, the role of geotextile should be balanced to optimize the LCS in MSW landfills in China.

  1. Perceived teaching behaviors and self-determined motivation in physical education: a test of self-determination theory.

    Science.gov (United States)

    Koka, Andre; Hagger, Martin S

    2010-03-01

    In the present study, we tested the effects of specific dimensions of perceived teaching behaviors on students' self-determined motivation in physical education. In accordance with the tenets of self-determination theory (Deci & Ryan, 1985, 2000), we expected the psychological needs for competence, autonomy, and relatedness would mediate these effects. Secondary school students (N=498) ages 12-17 years completed measures of perceived teaching behaviors for seven dimensions: (a) democratic behavior, (b) autocratic behavior (c) teaching and instruction, (d) situation consideration, (e) positive general feedback, (f) positive nonverbal feedback, and (h) negative nonverbal feedback. They also completed measures of perceived satisfaction for competence, autonomy, relatedness, and self-determined motivation. A path-analytic model revealed a positive, indirect effect of perceived positive general feedback on self-determined motivation. The effects of perceived autocratic behavior and negative nonverbal feedback were direct and negative, whereas the effects of teaching and instruction and situation consideration were direct and positive. Results suggest that feedback, situation consideration, and teaching and instruction are essential antecedents to self-determined motivation.

  2. A pilot test of the Latin active hip hop intervention to increase physical activity among low-income Mexican-American adolescents.

    Science.gov (United States)

    Romero, Andrea J

    2012-01-01

    The primary purpose of the current study was to develop, implement, and evaluate a hip hop dance intervention, Latin Active, among low-income Mexican-American adolescents. Mexican-descent adolescents tend to have disproportionate rates of low physical activity, overweight status, and obesity. A 5-week intervention design with pretest and post-test self-report measures. Charter middle school (grades 6-9) health/science classes in a low-income neighborhood were the setting for the Latin Active intervention. Overall, 81 participants were recruited; 73 (n  =  41, female; n  =  32, male) provided active parental consent to complete pretest/post-test surveys. Intervention . The Latin Active program included 10 interactive 50-minute lessons that were delivered twice a week during science/health classes. The curriculum was created on the basis of Social Cognitive Theory, Critical Hip Hop Pedagogy, and feedback from key stakeholders. The lessons focused on increasing physical activity as well as neighborhood barriers. The self-report pretest (n  =  73) and post-test (n  =  56) surveys included measures for frequency of vigorous physical activity, self-efficacy, and neighborhood barriers. Analysis . Paired-sample t-test analyses were conducted to assess mean differences from pretest to post-test results for intervention outcomes by gender. The Latin Active program (with 77% retention at post-test) significantly increased vigorous physical activity and dance (p girls, and it decreased perception of neighborhood barriers (p girl's vigorous physical activity and boy's perception of neighborhood barriers to physical activity. Future research will need to use a randomized, controlled design and investigate the effect of the program on measures of body mass index.

  3. Testing and simulation of silicon photomultiplier readouts for scintillators in high-energy astronomy and solar physics

    Science.gov (United States)

    Bloser, P. F.; Legere, J. S.; Bancroft, C. M.; Jablonski, L. F.; Wurtz, J. R.; Ertley, C. D.; McConnell, M. L.; Ryan, J. M.

    2014-11-01

    Space-based gamma-ray detectors for high-energy astronomy and solar physics face severe constraints on mass, volume, and power, and must endure harsh launch conditions and operating environments. Historically, such instruments have usually been based on scintillator materials due to their relatively low cost, inherent ruggedness, high stopping power, and radiation hardness. New scintillator materials, such as LaBr3:Ce, feature improved energy and timing performance, making them attractive for future astronomy and solar physics space missions in an era of tightly constrained budgets. Despite this promise, the use of scintillators in space remains constrained by the volume, mass, power, and fragility of the associated light readout device, typically a vacuum photomultiplier tube (PMT). In recent years, silicon photomultipliers (SiPMs) have emerged as promising alternative light readout devices that offer gains and quantum efficiencies similar to those of PMTs, but with greatly reduced mass and volume, high ruggedness, low voltage requirements, and no sensitivity to magnetic fields. In order for SiPMs to replace PMTs in space-based instruments, however, it must be shown that they can provide comparable performance, and that their inherent temperature sensitivity can be corrected for. To this end, we have performed extensive testing and modeling of a small gamma-ray spectrometer composed of a 6 mm×6 mm SiPM coupled to a 6 mm×6 mm ×10 mm LaBr3:Ce crystal. A custom readout board monitors the temperature and adjusts the bias voltage to compensate for gain variations. We record an energy resolution of 5.7% (FWHM) at 662 keV at room temperature. We have also performed simulations of the scintillation process and optical light collection using Geant4, and of the SiPM response using the GosSiP package. The simulated energy resolution is in good agreement with the data from 22 keV to 662 keV. Above ~1 MeV, however, the measured energy resolution is systematically worse than

  4. Alcohol use and strenuous physical activity in college students: A longitudinal test of 2 explanatory models of health behavior.

    Science.gov (United States)

    Davis, Heather A; Riley, Elizabeth N; Smith, Gregory T; Milich, Richard; Burris, Jessica L

    2017-01-01

    To help clarify the effect of gender on the bidirectional relationship between alcohol use and strenuous physical activity in college students. Five hundred twenty-four (52% female) college students recruited in August 2008 and 2009 and followed up in April 2009 and April 2011, respectively. Participants reported their alcohol use and strenuous physical activity on 2 occasions (baseline and follow-up) spaced approximately 1 or 2 years apart. For females, alcohol use quantity at baseline was associated with increased strenuous physical activity at 1- and 2-year follow-ups, and alcohol use frequency at baseline was associated with decreased strenuous physical activity at 2-year follow-up. For males, alcohol use frequency at baseline predicted decreased strenuous physical activity at 1-year follow-up. Gender differences may be explained from an eating disorders perspective such that women use physical activity as a compensatory strategy to combat potential weight gain from calories consumed during alcohol use.

  5. Testing a self-determination theory model of children?s physical activity motivation: a cross-sectional study

    OpenAIRE

    Sebire, Simon J; Jago, Russell; Fox, Kenneth R; Edwards, Mark J; Thompson, Janice L

    2013-01-01

    Background Understanding children?s physical activity motivation, its antecedents and associations with behavior is important and can be advanced by using self-determination theory. However, research among youth is largely restricted to adolescents and studies of motivation within certain contexts (e.g., physical education). There are no measures of self-determination theory constructs (physical activity motivation or psychological need satisfaction) for use among children and no previous stu...

  6. Physical fitness testing of students did not specialized departments in the selection and admission to the department of military-sports-round

    Directory of Open Access Journals (Sweden)

    Buryanovaty A.N.

    2012-09-01

    Full Text Available Modern progress of military-sports-round trends are considered. Influence of informing tests is rotined on a selection and put in the separation of military-sports-round. 180 (n = 180 students of the not special faculties took part in research. On results testing 18 students which rotined the level of preparedness above average were selected. 72 students were yet selected with a low level, 54 - below the average and to 36 middle. The optimum distributing has testing and it is counted on two days. It is set that the selection of these tests helps to define the level of physical preparedness of students and take away physically geared-up for future fruitful work. Directions and examples of planning of educational training process are rotined for achievement of certain results.

  7. Surry Power Station, Units 1 and 2. Annual operating report for 1976, section 2: core performance and startup physics test reports

    International Nuclear Information System (INIS)

    1977-01-01

    The analyses of four core performance indicators including burnup distribution, reactivity depletion, power distribution, and primary coolant activity are discussed. Information is presented concerning fuel densification monitoring; start-up physics testing; and James River temperature, salinity, fish, biota, and plankton entrainment monitoring

  8. Diagnostics of femoroacetabular impingement and labral pathology of the hip: a systematic review of the accuracy and validity of physical tests

    NARCIS (Netherlands)

    Tijssen, M.P.W.; Cingel, R.E. van; Willemsen, L.; de Visser, E.

    2012-01-01

    PURPOSE: Femoroacetabular impingement (FAI) and labral pathology have been recognized as causative factors for hip pain. The clinical diagnosis is now based on MRI-A (magnetic resonance imaging-arthrogram) because the physical diagnostic tests available are diverse and information on diagnostic

  9. New physical examination tests for lumbar spondylolisthesis and instability: low midline sill sign and interspinous gap change during lumbar flexion-extension motion.

    Science.gov (United States)

    Ahn, Kang; Jhun, Hyung-Joon

    2015-04-22

    Lumbar spondylolisthesis (LS) and lumbar instability (LI) are common disorders in patients with low back or lumbar radicular pain. However, few physical examination tests for LS and LI have been reported. In the study described herein, new physical examination tests for LS and LI were devised and evaluated for their validity. The test for LS was designated "low midline sill sign", and that for LI was designated "interspinous gap change" during lumbar flexion-extension motion. The validity of the low midline sill sign was evaluated in 96 patients with low back or lumbar radicular pain. Validity of the interspinous gap change during lumbar flexion-extension motion was evaluated in 73 patients with low back or lumbar radicular pain. The sensitivity, specificity, and positive and negative predictive values of the two tests were also investigated. The sensitivity and specificity of the low midline sill sign for LS were 81.3% and 89.1%, respectively. Positive and negative predictive values of the test were 78.8% and 90.5%, respectively. The sensitivity and specificity of the interspinous gap change test for LI were 82.2% and 60.7%, respectively. Positive and negative predictive values of the test were 77.1% and 68.0%, respectively. The low midline sill sign and interspinous gap change tests are effective for the detection of LS and LI, and can be performed easily in an outpatient setting.

  10. The Perceived Relationship Among Personnel Readiness, Job Performance and Work Demands: A Case for Physical Ability Testing

    Science.gov (United States)

    2012-09-01

    testosterone and estrogen production in males and females respectively are another factor to consider. Testosterone , which produces anabolic steroids, promotes...characteristics (Powers & Howley, 2004) with females having lower testosterone levels than males (Lippa, 2005). Currently, the services are revisiting their...the risk of developing an illness or disease. Physical inactivity has been shown to lead to obesity and Type 2 diabetes. Maintaining a physical

  11. Nursing staff members' intentions to use physical restraints with older people: testing the theory of reasoned action.

    Science.gov (United States)

    Werner, P; Mendelsson, G

    2001-09-01

    To examine nursing staff members' attitudes, subjective norms, moral obligations and intentions to use physical restraints, using the Theory of Reasoned Action (TRA). During the last two decades an extensive body of research has examined nurses' attitudes as one of the main factors affecting the decision to use or not to use physical restraints with older persons. However, no studies have examined empirically the antecedents to nurses' intentions to use physical restraints within a theoretically based framework. A correlational design was used with 303 nursing staff members from an 800-bed elder care hospital in central Israel. Participants completed a questionnaire including questions based on the TRA as well as socio-demographic and professional characteristics. Regression analyses found attitudes, subjective norms and moral considerations to be significantly associated to intention to use physical restraints with older people. The TRA explained 48% of the variance in nurses' intentions. The TRA proved to be a useful framework for examining nurses' intentions to use physical restraints. Nurses' attitudes, beliefs and expectations of significant others should be examined before implementing educational programmes regarding the use of physical restraints.

  12. Maximal exercise test is a useful method for physical capacity and oxygen consumption determination in streptozotocin-diabetic rats

    Directory of Open Access Journals (Sweden)

    Irigoyen Maria-Cláudia

    2007-12-01

    Full Text Available Abstract Background The aim of the present study was to investigate the relationship between speed during maximum exercise test (ET and oxygen consumption (VO2 in control and STZ-diabetic rats, in order to provide a useful method to determine exercise capacity and prescription in researches involving STZ-diabetic rats. Methods Male Wistar rats were divided into two groups: control (CG, n = 10 and diabetic (DG, n = 8. The animals were submitted to ET on treadmill with simultaneous gas analysis through open respirometry system. ET and VO2 were assessed 60 days after diabetes induction (STZ, 50 mg/Kg. Results VO2 maximum was reduced in STZ-diabetic rats (72.5 ± 1 mL/Kg/min-1 compared to CG rats (81.1 ± 1 mL/Kg/min-1. There were positive correlations between ET speed and VO2 (r = 0.87 for CG and r = 0.8 for DG, as well as between ET speed and VO2 reserve (r = 0.77 for CG and r = 0.7 for DG. Positive correlations were also obtained between measured VO2 and VO2 predicted values (r = 0.81 for CG and r = 0.75 for DG by linear regression equations to CG (VO2 = 1.54 * ET speed + 52.34 and DG (VO2 = 1.16 * ET speed + 51.99. Moreover, we observed that 60% of ET speed corresponded to 72 and 75% of VO2 reserve for CG and DG, respectively. The maximum ET speed was also correlated with VO2 maximum for both groups (CG: r = 0.7 and DG: r = 0.7. Conclusion These results suggest that: a VO2 and VO2 reserve can be estimated using linear regression equations obtained from correlations with ET speed for each studied group; b exercise training can be prescribed based on ET in control and diabetic-STZ rats; c physical capacity can be determined by ET. Therefore, ET, which involves a relatively simple methodology and low cost, can be used as an indicator of cardio-respiratory capacity in future studies that investigate the physiological effect of acute or chronic exercise in control and STZ-diabetic male rats.

  13. Maximal exercise test is a useful method for physical capacity and oxygen consumption determination in streptozotocin-diabetic rats

    Science.gov (United States)

    Rodrigues, Bruno; Figueroa, Diego M; Mostarda, Cristiano T; Heeren, Marcelo V; Irigoyen, Maria-Cláudia; De Angelis, Kátia

    2007-01-01

    Background The aim of the present study was to investigate the relationship between speed during maximum exercise test (ET) and oxygen consumption (VO2) in control and STZ-diabetic rats, in order to provide a useful method to determine exercise capacity and prescription in researches involving STZ-diabetic rats. Methods Male Wistar rats were divided into two groups: control (CG, n = 10) and diabetic (DG, n = 8). The animals were submitted to ET on treadmill with simultaneous gas analysis through open respirometry system. ET and VO2 were assessed 60 days after diabetes induction (STZ, 50 mg/Kg). Results VO2 maximum was reduced in STZ-diabetic rats (72.5 ± 1 mL/Kg/min-1) compared to CG rats (81.1 ± 1 mL/Kg/min-1). There were positive correlations between ET speed and VO2 (r = 0.87 for CG and r = 0.8 for DG), as well as between ET speed and VO2 reserve (r = 0.77 for CG and r = 0.7 for DG). Positive correlations were also obtained between measured VO2 and VO2 predicted values (r = 0.81 for CG and r = 0.75 for DG) by linear regression equations to CG (VO2 = 1.54 * ET speed + 52.34) and DG (VO2 = 1.16 * ET speed + 51.99). Moreover, we observed that 60% of ET speed corresponded to 72 and 75% of VO2 reserve for CG and DG, respectively. The maximum ET speed was also correlated with VO2 maximum for both groups (CG: r = 0.7 and DG: r = 0.7). Conclusion These results suggest that: a) VO2 and VO2 reserve can be estimated using linear regression equations obtained from correlations with ET speed for each studied group; b) exercise training can be prescribed based on ET in control and diabetic-STZ rats; c) physical capacity can be determined by ET. Therefore, ET, which involves a relatively simple methodology and low cost, can be used as an indicator of cardio-respiratory capacity in future studies that investigate the physiological effect of acute or chronic exercise in control and STZ-diabetic male rats. PMID:18078520

  14. Promoting Physical Activity in Low-Active Adolescents via Facebook: A Pilot Randomized Controlled Trial to Test Feasibility.

    Science.gov (United States)

    Wójcicki, Thomas R; Grigsby-Toussaint, Diana; Hillman, Charles H; Huhman, Marian; McAuley, Edward

    2014-10-30

    The World Wide Web is an effective method for delivering health behavior programs, yet major limitations remain (eg, cost of development, time and resource requirements, limited interactivity). Social media, however, has the potential to deliver highly customizable and socially interactive behavioral interventions with fewer constraints. Thus, the evaluation of social media as a means to influence health behaviors is warranted. The objective of this trial was to examine and demonstrate the feasibility of using an established social networking platform (ie, Facebook) to deliver an 8 week physical activity intervention to a sample of low-active adolescents (N=21; estimated marginal mean age 13.48 years). Participants were randomized to either an experimental (ie, Behavioral) or attentional control (ie, Informational) condition. Both conditions received access to a restricted-access, study-specific Facebook group where the group's administrator made two daily wall posts containing youth-based physical activity information and resources. Primary outcomes included physical activity as assessed by accelerometry and self-report. Interactions and main effects were examined, as well as mean differences in effect sizes. Analyses revealed significant improvements over time on subjectively reported weekly leisure-time physical activity (F1,18=8.426, P=.009, η2 = .319). However, there was no interaction between time and condition (F1,18=0.002, P=.968, η2 = .000). There were no significant time or interaction effects among the objectively measured physical activity variables. Examination of effect sizes revealed moderate-to-large changes in physical activity outcomes. Results provide initial support for the feasibility of delivery of a physical activity intervention to low-active adolescents via social media. Whether by employing behavioral interventions via social media can result in statistically meaningful changes in health-related behaviors and outcomes remains to be

  15. Parent-child attitude congruence on type and intensity of physical activity: testing multiple mediators of sedentary behavior in older children.

    Science.gov (United States)

    Anderson, Cheryl B; Hughes, Sheryl O; Fuemmeler, Bernard F

    2009-07-01

    This study examined parent-child attitudes on value of specific types and intensities of physical activity, which may explain gender differences in child activity, and evaluated physical activity as a mechanism to reduce time spent in sedentary behaviors. A community sample of 681 parents and 433 children (mean age 9.9 years) reported attitudes on importance of vigorous and moderate intensity team and individually performed sports/activities, as well as household chores. Separate structural models (LISREL 8.7) for girls and boys tested whether parental attitudes were related to child TV and computer via child attitudes, sport team participation, and physical activity, controlling for demographic factors. Child 7-day physical activity, sport teams, weekly TV, computer. Parent-child attitude congruence was more prevalent among boys, and attitudes varied by ethnicity, parent education, and number of children. Positive parent-child attitudes for vigorous team sports were related to increased team participation and physical activity, as well as reduced TV and computer in boys and girls. Value of moderate intensity household chores, such as cleaning house and doing laundry, was related to decreased team participation and increased TV in boys. Only organized team sports, not general physical activity, was related to reduced TV and computer. Results support parents' role in socializing children's achievement task values, affecting child activity by transferring specific attitudes. Value of vigorous intensity sports provided the most benefits to activity and reduction of sedentary behavior, while valuing household chores had unexpected negative effects.

  16. Physical examination instead of laboratory tests for most infants born to mothers colonized with group B Streptococcus: support for the Centers for Disease Control and Prevention's 2010 recommendations.

    Science.gov (United States)

    Cantoni, Luigi; Ronfani, Luca; Da Riol, Rosalia; Demarini, Sergio

    2013-08-01

    To compare 2 approaches in the management of neonates at risk for group B Streptococcus early-onset sepsis: laboratory tests plus standardized physical examination and standardized physical examination alone. Prospective, sequential study over 2 consecutive 12-month periods, carried out in the maternity hospitals of the region Friuli-Venezia Giulia (north-eastern Italy). All term infants were included (7628 in the first period, 7611 in the second). In the first period, complete blood count and blood culture were required for all infants at risk, followed by a 48-hour period of observation with a standardized physical examination. In the second period, only standardized physical examination was performed. Study outcomes were: (1) number of neonates treated with antibiotics; and (2) time between onset of signs of possible sepsis and beginning of treatment. There was no difference between the 2 periods in the rate of maternal colonization (19.7% vs 19.8%, P = .8), or in other risk factors. The interval between onset of signs of sepsis and starting of antibiotics was not different in the 2 periods. Significantly fewer infants were treated with antibiotics in the second period (0.5% vs 1.2%, P physical examination seem to offer no advantage over standardized physical examination alone; the latter was associated with fewer antibiotic treatments. Our results are in agreement with the Center for Disease Control and Prevention's 2010 recommendations. Copyright © 2013 Mosby, Inc. All rights reserved.

  17. The Physical Understanding of the Use of Coatings to Mitigate Hypervelocity Gouging Considering Real Test Sled Dimensions

    National Research Council Canada - National Science Library

    Szmerekovsky, Andrew

    2004-01-01

    A dimensional analysis with accompanying numerical investigation is conducted. A simplified model of the real test sled is created that allows test sled dimensions to be converted to a numerical model for analysis...

  18. Utilization of Benchtop Next Generation Sequencing Platforms Ion Torrent PGM and MiSeq in Noninvasive Prenatal Testing for Chromosome 21 Trisomy and Testing of Impact of In Silico and Physical Size Selection on Its Analytical Performance.

    Science.gov (United States)

    Minarik, Gabriel; Repiska, Gabriela; Hyblova, Michaela; Nagyova, Emilia; Soltys, Katarina; Budis, Jaroslav; Duris, Frantisek; Sysak, Rastislav; Gerykova Bujalkova, Maria; Vlkova-Izrael, Barbora; Biro, Orsolya; Nagy, Balint; Szemes, Tomas

    2015-01-01

    The aims of this study were to test the utility of benchtop NGS platforms for NIPT for trisomy 21 using previously published z score calculation methods and to optimize the sample preparation and data analysis with use of in silico and physical size selection methods. Samples from 130 pregnant women were analyzed by whole genome sequencing on benchtop NGS systems Ion Torrent PGM and MiSeq. The targeted yield of 3 million raw reads on each platform was used for z score calculation. The impact of in silico and physical size selection on analytical performance of the test was studied. Using a z score value of 3 as the cut-off, 98.11%-100% (104-106/106) specificity and 100% (24/24) sensitivity and 99.06%-100% (105-106/106) specificity and 100% (24/24) sensitivity were observed for Ion Torrent PGM and MiSeq, respectively. After in silico based size selection both platforms reached 100% specificity and sensitivity. Following the physical size selection z scores of tested trisomic samples increased significantly--p = 0.0141 and p = 0.025 for Ion Torrent PGM and MiSeq, respectively. Noninvasive prenatal testing for chromosome 21 trisomy with the utilization of benchtop NGS systems led to results equivalent to previously published studies performed on high-to-ultrahigh throughput NGS systems. The in silico size selection led to higher specificity of the test. Physical size selection performed on isolated DNA led to significant increase in z scores. The observed results could represent a basis for increasing of cost effectiveness of the test and thus help with its penetration worldwide.

  19. Revealing Students' Cognitive Structure about Physical and Chemical Change: Use of a Word Association Test

    Science.gov (United States)

    Yildirir, Hasene Esra; Demirkol, Hatice

    2018-01-01

    The current study aimed at examining the utility of a word association test in revealing students' cognitive structure in a specific chemistry topic through a word association test. The participants were 153 6th graders in a western Turkish city. The results revealed that the word association test serves a useful purpose in exploring the students'…

  20. A systematic review protocol investigating tests for physical or physiological qualities and game-specific skills commonly used in rugby and related sports and their psychometric properties.

    Science.gov (United States)

    Chiwaridzo, Matthew; Ferguson, Gillian D; Smits-Engelsman, Bouwien C M

    2016-07-27

    Scientific focus on rugby has increased over the recent years, providing evidence of the physical or physiological characteristics and game-specific skills needed in the sport. Identification of tests commonly used to measure these characteristics is important for the development of test batteries, which in turn may be used for talent identification and injury prevention programmes. Although there are a number of tests available in the literature to measure physical or physiological variables and game-specific skills, there is limited information available on the psychometric properties of the tests. Therefore, the purpose of this study is to systematically review the literature for tests commonly used in rugby to measure physical or physiological characteristics and rugby-specific skills, documenting evidence of reliability and validity of the identified tests. A systematic review will be conducted. Electronic databases such as Scopus, MEDLINE via EBSCOhost and PubMed, Academic Search Premier, CINAHL and Africa-Wide Information via EBSCOhost will be searched for original research articles published in English from January 1, 1995, to December 31, 2015, using a pre-defined search strategy. The principal investigator will select potentially relevant articles from titles and abstracts. To minimise bias, full text of titles and abstracts deemed potentially relevant will be retrieved and reviewed by two independent reviewers based on the inclusion criteria. Data extraction will be conducted by the principal investigator and verified by two independent reviewers. The Consensus-based Standards for the Selection of Health Measurement Instruments (COSMIN) checklist will be used to assess the methodological quality of the selected studies. Choosing an appropriate test to be included in the screening test battery should be based on sound psychometric properties of the test available. This systematic review will provide an overview of the tests commonly used in rugby union

  1. Cognitive Style Predicts Entry into Physical Sciences and Humanities: Questionnaire and Performance Tests of Empathy and Systemizing

    Science.gov (United States)

    Billington, Jac; Baron-Cohen, Simon; Wheelwright, Sally

    2007-01-01

    It is often questioned as to why fewer women enter science. This study assesses whether a cognitive style characterized by systemizing being at a higher level than empathizing (S greater than E) is better than sex in predicating entry into the physical sciences compared to humanities. 415 students in both types of discipline (203 males, 212…

  2. Testing a path-analytic mediation model of how motivational enhancement physiotherapy improves physical functioning in pain patients.

    Science.gov (United States)

    Cheing, Gladys; Vong, Sinfia; Chan, Fong; Ditchman, Nicole; Brooks, Jessica; Chan, Chetwyn

    2014-12-01

    Pain is a complex phenomenon not easily discerned from psychological, social, and environmental characteristics and is an oft cited barrier to return to work for people experiencing low back pain (LBP). The purpose of this study was to evaluate a path-analytic mediation model to examine how motivational enhancement physiotherapy, which incorporates tenets of motivational interviewing, improves physical functioning of patients with chronic LBP. Seventy-six patients with chronic LBP were recruited from the outpatient physiotherapy department of a government hospital in Hong Kong. The re-specified path-analytic model fit the data very well, χ (2)(3, N = 76) = 3.86, p = .57; comparative fit index = 1.00; and the root mean square error of approximation = 0.00. Specifically, results indicated that (a) using motivational interviewing techniques in physiotherapy was associated with increased working alliance with patients, (b) working alliance increased patients' outcome expectancy and (c) greater outcome expectancy resulted in a reduction of subjective pain intensity and improvement in physical functioning. Change in pain intensity also directly influenced improvement in physical functioning. The effect of motivational enhancement therapy on physical functioning can be explained by social-cognitive factors such as motivation, outcome expectancy, and working alliance. The use of motivational interviewing techniques to increase outcome expectancy of patients and improve working alliance could further strengthen the impact of physiotherapy on rehabilitation outcomes of patients with chronic LBP.

  3. Experimental Longitudinal Test of the Influence of Autonomy-Supportive Teaching on Motivation for Participation in Elementary School Physical Education

    Science.gov (United States)

    Leptokaridou, Elisavet T.; Vlachopoulos, Symeon P.; Papaioannou, Athanasios G.

    2016-01-01

    The present study examined the efficacy of autonomy-supportive teaching during elementary school physical education (PE) in influencing pupils' enjoyment, fear of failure, boredom and effort. A sample of 54 pupils attending fifth and sixth grades comprised the control group (typical instruction; n = 27) and the experimental group…

  4. High School Females' Emotions, Self-Efficacy, and Attributions during Soccer and Fitness Testing in Physical Education

    Science.gov (United States)

    Lodewyk, Ken R.; Muir, Amber

    2017-01-01

    Female enthusiasm toward engaging in physical education decreases significantly with age. This has been linked to, among other things, the negative emotional experiences that sometimes occur when learning and participating in a variety of curricular content such as games or fitness activities. Little is yet known about how females' enjoyment,…

  5. Measuring Critical Thinking in Physics: Development and Validation of a Critical Thinking Test in Electricity and Magnetism

    Science.gov (United States)

    Tiruneh, Dawit Tibebu; De Cock, Mieke; Weldeslassie, Ataklti G.; Elen, Jan; Janssen, Rianne

    2017-01-01

    Although the development of critical thinking (CT) is a major goal of science education, adequate emphasis has not been given to the measurement of CT skills in specific science domains such as physics. Recognizing that adequately assessing CT implies the assessment of both domain-specific and domain-general CT skills, this study reports on the…

  6. Alcohol Use and Strenuous Physical Activity in College Students: A Longitudinal Test of 2 Explanatory Models of Health Behavior

    Science.gov (United States)

    Davis, Heather A.; Riley, Elizabeth N.; Smith, Gregory T.; Milich, Richard; Burris, Jessica L.

    2017-01-01

    Objective: To help clarify the effect of gender on the bidirectional relationship between alcohol use and strenuous physical activity in college students. Participants: Five hundred twenty-four (52% female) college students recruited in August 2008 and 2009 and followed up in April 2009 and April 2011, respectively. Methods: Participants reported…

  7. Developing and Evaluating a Paper-and-Pencil Test to Assess Components of Physics Teachers' Pedagogical Content Knowledge

    Science.gov (United States)

    Kirschner, Sophie; Borowski, Andreas; Fischer, Hans E.; Gess-Newsome, Julie; von Aufschnaiter, Claudia

    2016-01-01

    Teachers' professional knowledge is assumed to be a key variable for effective teaching. As teacher education has the goal to enhance professional knowledge of current and future teachers, this knowledge should be described and assessed. Nevertheless, only a limited number of studies quantitatively measures physics teachers' professional…

  8. Multivariate Associations Among Health-Related Fitness, Physical Activity, and TGMD-3 Test Items in Disadvantaged Children From Low-Income Families.

    Science.gov (United States)

    Burns, Ryan; Brusseau, Tim; Hannon, James

    2016-10-04

    Motor skills are needed for physical development and may be linked to health-related fitness and physical activity levels. No studies have examined the relationships among these constructs in large samples of disadvantaged children from low-income families using the Test for Gross Motor Development-3rd Edition (TGMD-3). The purpose of this study was to examine the multivariate associations among health-related fitness, physical activity, and motor skills assessed using the TGMD-3. Participants included 1460 school-aged children (730 boys, 730 girls; M age = 8.4 years, SD = 1.8 years) recruited from the K to sixth grades from three low-income schools. Health-related fitness was assessed using the FITNESSGRAM battery, physical activity was assessed using accelerometers and pedometers, and motor skills were assessed using the TGMD-3. Canonical correlations revealed statistically significant correlations between the Ball Skills and health-related fitness variates (R c  = 0.43, R c 2  = 17%, p health-related fitness variate included body mass index and the progressive aerobic cardiovascular endurance run (p health-related fitness or physical activity. Ball skills are related to health-related fitness in disadvantaged children from low-income families. © The Author(s) 2016.

  9. Nitrate supplementation improves physical performance specifically in non-athletes during prolonged open-ended tests: a systematic review and meta-analysis.

    Science.gov (United States)

    Campos, Helton O; Drummond, Lucas R; Rodrigues, Quezia T; Machado, Frederico S M; Pires, Washington; Wanner, Samuel P; Coimbra, Cândido C

    2018-03-01

    Nitrate (NO3 -) is an ergogenic nutritional supplement that is widely used to improve physical performance. However, the effectiveness of NO3 - supplementation has not been systematically investigated in individuals with different physical fitness levels. The present study analysed whether different fitness levels (non-athletes v. athletes or classification of performance levels), duration of the test used to measure performance (short v. long duration) and the test protocol (time trials v. open-ended tests v. graded-exercise tests) influence the effects of NO3 - supplementation on performance. This systematic review and meta-analysis was conducted and reported according to the guidelines outlined in the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement. A systematic search of electronic databases, including PubMed, Web of Science, SPORTDiscus and ProQuest, was performed in August 2017. On the basis of the search and inclusion criteria, fifty-four and fifty-three placebo-controlled studies evaluating the effects of NO3 - supplementation on performance in humans were included in the systematic review and meta-analysis, respectively. NO3 - supplementation was ergogenic in non-athletes (mean effect size (ES) 0·25; 95 % CI 0·11, 0·38), particularly in evaluations of performance using long-duration open-ended tests (ES 0·47; 95 % CI 0·23, 0·71). In contrast, NO3 - supplementation did not enhance the performance of athletes (ES 0·04; 95 % CI -0·05, 0·15). After objectively classifying the participants into different performance levels, the frequency of trials showing ergogenic effects in individuals classified at lower levels was higher than that in individuals classified at higher levels. Thus, the present study indicates that dietary NO3 - supplementation improves physical performance in non-athletes, particularly during long-duration open-ended tests.

  10. Development of Reasoning Test Instruments Based on TIMSS Framework for Measuring Reasoning Ability of Senior High School Student on the Physics Concept

    Science.gov (United States)

    Muslim; Suhandi, A.; Nugraha, M. G.

    2017-02-01

    The purposes of this study are to determine the quality of reasoning test instruments that follow the framework of Trends in International Mathematics and Science Study (TIMSS) as a development results and to analyse the profile of reasoning skill of senior high school students on physics materials. This research used research and development method (R&D), furthermore the subject were 104 students at three senior high schools in Bandung selected by random sampling technique. Reasoning test instruments are constructed following the TIMSS framework in multiple choice forms in 30 questions that cover five subject matters i.e. parabolic motion and circular motion, Newton’s law of gravity, work and energy, harmonic oscillation, as well as the momentum and impulse. The quality of reasoning tests were analysed using the Content Validity Ratio (CVR) and classic test analysis include the validity of item, level of difficulty, discriminating power, reliability and Ferguson’s delta. As for the students’ reasoning skills profiles were analysed by the average score of achievements on eight aspects of the reasoning TIMSS framework. The results showed that reasoning test have a good quality as instruments to measure reasoning skills of senior high school students on five matters physics which developed and able to explore the reasoning of students on all aspects of reasoning based on TIMSS framework.

  11. Development and Application of a Four-Tier Test to Assess Pre-Service Physics Teachers' Misconceptions about Geometrical Optics

    Science.gov (United States)

    Kaltakci-Gurel, Derya; Eryilmaz, Ali; McDermott, Lillian Christie

    2017-01-01

    Background: Correct identification of misconceptions is an important first step in order to gain an understanding of student learning. More recently, four-tier multiple choice tests have been found to be effective in assessing misconceptions. Purpose: The purposes of this study are (1) to develop and validate a four-tier misconception test to…

  12. Results of experimental testing of system of future physical culture teachers’ training for art pedagogic means’ application in pedagogic functioning

    Directory of Open Access Journals (Sweden)

    T.V. Nizhevska

    2015-10-01

    Full Text Available Purpose: the research is devoted to seeking of ways to rising of quality of future physical culture teachers. Material: in experiment 436 students and 29 teachers participated. Results: it was found that readiness of future physical culture teachers for application of art pedagogic means in professional functioning is achieved through realization of appropriate block system. Such system ensures mastering by students of the following: theoretical principles of art pedagogic; mastering of art pedagogic skills in teaching and quasi professional functioning; acquiring of practical experience of art means’ application in period of pedagogic practice at schools. It was also determined that training system of future teachers includes the following three blocks: conceptual-target, knowledge-procedural; control-correcting. Conclusions: it is recommended to use such criteria of students’ readiness for application of art means in pedagogic functioning: motivation-axiological, cognitive-active, personality’s-reflexive.

  13. Physical optics in the factory works - holographic quality and safety tests with a laser and a thermoplast

    Energy Technology Data Exchange (ETDEWEB)

    Lhotzky, A.

    1982-04-01

    Using holographic methods, the quality of bonds between various materials can be tested. The measuring method is explained using the aeroplane tyre test which is particularly important for practical use. The method can also be used for parts where faulty parts deform in a different way to fault-free parts. The deformations used for the test lie in the micron range. A second important field of use is the vibration analysis. Here the hologrammes show weak points in the construction and indicate to the designer the way to design optimization. Noise sources can also be detected with the holographic vibration analysis. The most important novelty in the holographic testing methods was made by the thermoplast film which makes possible the obtaining of instant hologrammes and thus automatic running of the test.

  14. Physical optics in the factory works - holographic quality and safety tests with a laser and a thermoplast

    International Nuclear Information System (INIS)

    Lhotzky, A.

    1982-01-01

    Using holographic methods, the quality of bonds between various materials can be tested. The measuring method is explained using the aeroplane tyre test which is particularly important for practical use. The method can also be used for parts where faulty parts deform in a different way to fault-free parts. The deformations used for the test lie in the micron range. A second important field of use is the vibration analysis. Here the hologrammes show weak points in the construction and indicate to the designer the way to design optimization. Noise sources can also be detected with the holographic vibration analysis. The most important novelty in the holographic testing methods was made by the thermoplast film which makes possible the obtaining of instant hologrammes and thus automatic running of the test. (orig.) [de

  15. Effects of light deprivation in physical performance and psychophysiological responses to a time-to-exhaustion exercise test.

    Science.gov (United States)

    Pinheiro, Fabiano A; Santos, Tony M; Ugrinowitsch, Carlos; Noakes, Timothy D; Pires, Flávio O

    2015-11-01

    Studies have shown that there is no effect of light deprivation in closed-loop exercise performance, however less is known about the open-loop exercise performance. Thus, we verified if light deprivation may affect performance and psychophysiological responses to a time-to-exhaustion (TE), constant intensity exercise test. Twelve men performed TE tests (at 80% WPEAK of maximal incremental test) in control and light-deprived condition. Gaseous exchange (VE and VO2), heart rate (HR) and vastus lateralis electromyography (EMG) were continuously assessed, ratings of perceived exertion (RPE) and associative thoughts to exercise (ATE) were obtained every 60s. Responses at absolute time of exercise matched by the shortest time to exhaustion, and responses at exhaustion were compared between conditions (PExhaustion was shortened (5.0 ± 1.6 min vs 6.4 ± 2.4 min) and RPE slope was elevated in light deprivation, when compared to control (Pexhaustion in light deprivation TE test than at the equivalent, paired time in control test. However, responses were similar at exhaustion of both TE tests; the exception was the lower EMG when the light was deprived. The light deprivation shortened the exhaustion and increased RPE in TE test, until the attainment of similar maximal psychophysiological responses. Copyright © 2015 Elsevier Inc. All rights reserved.

  16. Comparison of Fallers and Nonfallers on Four Physical Performance Tests: A Prospective Cohort Study of Community-Dwelling Older Indigenous Taiwanese Women

    Directory of Open Access Journals (Sweden)

    Jia-Ching Chen

    2018-03-01

    Full Text Available Background: In this study of older indigenous Taiwanese women, we sought to compare the scores of fallers and non-fallers on four tests of physical performance. Additionally, we aimed to establish cutoff scores that would be discriminate fallers from nonfallers. Methods: At baseline, study participants were evaluated using the Short Physical Performance Battery (SPPB, the Timed Up and Go (TUG test, gait speed, and the Elderly Mobility Scale (EMS. Their falls were recorded monthly for the next 1 year, and individuals who fell at least once were classified as fallers. For each of the four tests, we estimated the area under the curve (AUC, as well as cutoff points and odds ratios (ORs with confidence interval (CI for falls. Results: The study included 112 participants, with a mean (±standard deviation age of 75.5 ± 6.2 years. Thirty-six (32% of the participants were fallers. Except for the EMS, all tests had AUCs >0.8, as well as moderate sensitivities and specificities. The cutoff point for predicting being a faller were 10.5 for the SPPB (OR, 8.4; CI, 3.3–21.4, 13.9 s for the TUG test (OR, 19.4; CI, 6.9–55.1, 0.84 m/s for gait speed (OR, 8.9; CI, 3.6–22.0, and 19.5 for EMS (OR, 3.4; CI, 1.5–8.0. Conclusion: The SPPB, TUG, and gait speed might provide effective means of fall screening among older indigenous Taiwanese women. Keywords: accidental falls, aged, indigenous people, balance, physical function

  17. Comparison of Giant-Slalom Results, Selected Anthropometric Measurements and Physical Fitness Tests between Female and Male Competitors in Under 14 Category

    Directory of Open Access Journals (Sweden)

    Stojan Puhalj

    2016-04-01

    Full Text Available The purpose of the research was to determine whether there are any differences in selected anthropometric measurements, physical fitness tests and the average times achieved in three competitions in giant slalom between female and male alpine skiing competitors in category U14. The research was conducted on a sample of 40 categorized competitors, 20 boys M = 12.5; SD = 0.513 and 20 girls M = 12.55; SD = 0.510. Gender differences in selected anthropometric measurements (volume of the left knee, body mass index (BMI, and percentage of body fat, selected physical fitness tests (ten jumps on both legs, running eights, and test of stability, and ski result were assessed using t-test for independent samples. In order to assess ski result, average time from tree giant-slalom runs was used. Statistical significance was set at the α level of 0.05. The results showed that there were statistically significant differences (p <0.05 only in the percentage of body fat. We established that the levels of selected physical fitness tests in the female and male competitors aged under 14 years in the season 2013/14 are equal. It should also be noted that the groups do not differ in most of the selected anthropometric dimensions. It is therefore not surprising that the level of skiing skills, gained by female and male competitors in categoriesU14, is equal. The research results demonstrated the possibility of uniform and related training procedures and competitions in alpine skiing for boys and girls aged under 14 years.

  18. TURBHO - Higher order turbulence modeling for industrial appications. Design document: Module Test Phase (MTP). Software engineering module: Additional physical models; TURBHO. Turbulenzmodellierung hoeherer Ordnung fuer industrielle Anwendungen. Design document: Module Test Phase (MTP). Software engineering module: additional physical models

    Energy Technology Data Exchange (ETDEWEB)

    Grotjans, H.

    1998-04-01

    In the current Software Engineering Module (SEM2) three additional test cases have been investigated, as listed in Chapter 2. For all test cases it has been shown that the computed results are grid independent. This has been done by systematic grid refinement studies. The main objective of the current SEM2 was the verification and validation of the new wall function implementation for the k-{epsilon} mode and the SMC-model. Analytical relations and experimental data have been used for comparison of the computational results. The agreement of the results is good. Therefore, the correct implementation of the new wall function has been demonstrated. As the results in this report have shown, a consistent grid refinement can be done for any test case. This is an important improvement for industrial applications, as no model specific requirements must be considered during grid generation. (orig.)

  19. Preliminary geochemical and physical testing of materials for plugging of man-made accesses to a repository in basalt

    International Nuclear Information System (INIS)

    Taylor, C.L.; Anttonen, G.J.; O'Rourke, J.E.; Allirot, D.

    1980-04-01

    The available data on environmental conditions (both natural and man-made) at the Hanford Site are sufficient for preconceptual plug system design. Results of the geochemical testing program indicate that preferred candidate plug materials are chemically nonreactive during laboratory tests that simulated some of the expected environmental conditions. Agitated, crushed-basalt samples and mixtures containing basalt were found to be self-cementing under the hydrothermal conditions. Materials considered most suitable for consideration in future test programs and preconceptual plug design are mixtures of natural materials (basalt, clay, glaciofluvial sand, gravel, and zeolite) and processed natural materials

  20. Pilot project - demonstration of capabilities and benefits of bridge load rating through physical testing : tech transfer summary.

    Science.gov (United States)

    2013-08-01

    This project demonstrated the capabilities for load testing bridges in Iowa, developed and presented a webinar to local and state engineers, and produced a spreadsheet and benefit evaluation matrix that others can use to preliminarily assess where br...

  1. Usability testing and piloting of the Mums Step It Up program--a team-based social networking physical activity intervention for women with young children.

    Directory of Open Access Journals (Sweden)

    Jocelyn Kernot

    Full Text Available Women's physical activity levels decline during their transition to parenthood. Facebook is widely used by Australian mothers and provides the opportunity to target social networks in order to maintain and increase physical activity.This mixed method study aimed to pilot and assess the usability of the Mums Step It Up Facebook app, a new team-based physical activity intervention for mothers with young children. A purposive sample of five "Captain" women with young children, were recruited through personal contacts. These women used the app to recruit 3-7 Facebook friends (with children under 5 to join their respective teams (total n = 25. The app encourages women to take 10,000 steps a day measured by a pedometer. Women used the app for 28 days to log steps, interact with team mates and monitor progress. Physical activity was assessed at two time points (baseline and final week using the Active Australia Survey. Usability testing with the five "Captain" women took place over two one hour face-to-face sessions. A questionnaire seeking feedback on the app was completed at time point two.Participants' total physical activity increased by an average of 177 minutes per week (p = 0.01. The complexity of the team forming process and issues using the Facebook environment, where a variety of devices and software platforms are used, was highlighted.A team-based Facebook app shows considerable promise for the recruitment and retention of participants to a social network-based physical activity intervention. A randomised controlled trial to further evaluate the effectiveness of the intervention is warranted.

  2. [A new procedure for the estimation of physical fitness of patients during clinical rehabilitation using the 6-minute-walk-test].

    Science.gov (United States)

    Marek, W; Marek, E; Vogel, P; Mückenhoff, K; Kotschy-Lang, N

    2008-11-01

    AIMS OF THE INVESTIGATION: The 6-minute-walk-test (6-MW) is an effective tool for measuring physical fitness in elderly patients. The increased walking distance is taken as a parameter for improved physical conditions. Frequently an unaltered walking distance is found after clinical treatment, but heart rate is significantly lower in the second challenge, indicating an improved physical fitness. This positive effect is not recognised when only the walking distance is analysed. An analysis of the 6-MW test was performed on 263 patients before and after 3 - 4 weeks clinical rehabilitation. In a control group of 26 patients 6-MW was repeated after recovery at the beginning and the end of the clinical treatment. Instrumented by a mobile pulse oximeter for recording oxygen saturation and heart rate, patients were instructed to walk as fast as they can do during 6 minutes. Measurements were performed every 30 seconds and printed out. Two new parameters, efficiency (E = S/f (C)), the ratio of distance and mean heart rate, and the theoretical increase in walking distance (S (z) = Delta f (C1)/Delta f (C2) x S (2) - S (1)) were introduced and tested. S (z) = theoretical increase in distance, Delta f (C1) = difference in heart rate at rest and mean heart rate at steady state during the first walk test with distance, S1. Delta f (C2), and S2 are measured during the second walk. Thus, the increase in distance is calculated under the assumption that the second walk test would have been performed by the patient with the same difference in heart rate that he/she achieved in the first walk. The patient groups walked 353 +/- 80 m at 106 +/- 14.3 beats/min in the 1st. 6-MW and 368 +/- 76.9 m at a heart rate of 105 +/- 14.0 beats/min in the final test. The increase of the walking distance was most significant in patients with shorter distances in the 1st 6-MW. A significant increase in the walking distance and in efficiency was found in patients with shorter walking distances or

  3. Testing the validity of a stage assessment on health enhancing physical activity in a chinese university student sample

    Directory of Open Access Journals (Sweden)

    Yanping Duan

    2016-03-01

    Full Text Available Abstract Background The study examined the measurement quality of a stage algorithm measuring the Four steps from Inactivity to activity Theory (FIT Model. Methods In a cross-sectional study, stages were assessed in 1012 Chinese university students in terms of physical activity, social-cognitive variables and health outcomes. Main outcome measures were stages of change, self-reported physical activity, perceived barriers, intrinsic motivation, plans, fitness and health satisfaction. Misclassification, sensitivity, specificity, receiver operating characteristic (ROC curves, nonlinear trends, and planned comparison were computed. Results Compared to previous studies, sensitivity was at the average level (64 %-71 %, and specificity was comparably higher (76%-89%. When using higher PA intensity criteria (moderate and strenuous intensities, sensitivity was higher, whereas specificity was lower in comparison to the lower PA intensity criteria (also including mild activity. After running contrast and trend analyses, nonlinear trends for all indicative variables across the stages and a match of 77 % of predictions of stage differences were confirmed. Conclusion The measurement quality of the stage algorithm was supported in a young adult sample.

  4. Testing the Standard Model and Fundamental Symmetries in Nuclear Physics with Lattice QCD and Effective Field Theory

    Energy Technology Data Exchange (ETDEWEB)

    Walker-Loud, Andre [College of William and Mary, Williamsburg, VA (United States)

    2016-10-14

    The research supported by this grant is aimed at probing the limits of the Standard Model through precision low-energy nuclear physics. The work of the PI (AWL) and additional personnel is to provide theory input needed for a number of potentially high-impact experiments, notably, hadronic parity violation, Dark Matter direct detection and searches for permanent electric dipole moments (EDMs) in nucleons and nuclei. In all these examples, a quantitative understanding of low-energy nuclear physics from the fundamental theory of strong interactions, Quantum Chromo-Dynamics (QCD), is necessary to interpret the experimental results. The main theoretical tools used and developed in this work are the numerical solution to QCD known as lattice QCD (LQCD) and Effective Field Theory (EFT). This grant is supporting a new research program for the PI, and as such, needed to be developed from the ground up. Therefore, the first fiscal year of this grant, 08/01/2014-07/31/2015, has been spent predominantly establishing this new research effort. Very good progress has been made, although, at this time, there are not many publications to show for the effort. After one year, the PI accepted a job at Lawrence Berkeley National Laboratory, so this final report covers just a single year of five years of the grant.

  5. Examining age-related shared variance between face cognition, vision, and self-reported physical health: a test of the common cause hypothesis for social cognition

    Science.gov (United States)

    Olderbak, Sally; Hildebrandt, Andrea; Wilhelm, Oliver

    2015-01-01

    The shared decline in cognitive abilities, sensory functions (e.g., vision and hearing), and physical health with increasing age is well documented with some research attributing this shared age-related decline to a single common cause (e.g., aging brain). We evaluate the extent to which the common cause hypothesis predicts associations between vision and physical health with social cognition abilities specifically face perception and face memory. Based on a sample of 443 adults (17–88 years old), we test a series of structural equation models, including Multiple Indicator Multiple Cause (MIMIC) models, and estimate the extent to which vision and self-reported physical health are related to face perception and face memory through a common factor, before and after controlling for their fluid cognitive component and the linear effects of age. Results suggest significant shared variance amongst these constructs, with a common factor explaining some, but not all, of the shared age-related variance. Also, we found that the relations of face perception, but not face memory, with vision and physical health could be completely explained by fluid cognition. Overall, results suggest that a single common cause explains most, but not all age-related shared variance with domain specific aging mechanisms evident. PMID:26321998

  6. Examining Age-Related Shared Variance Between Face Cognition, Vision, and Self-Reported Physical Health: A Test of the Common Cause Hypothesis for Social Cognition

    Directory of Open Access Journals (Sweden)

    Sally eOlderbak

    2015-08-01

    Full Text Available The shared decline in cognitive abilities, sensory functions (e.g., vision and hearing, and physical health with increasing age is well documented with some research attributing this shared age-related decline to a single common cause (e.g., aging brain. We evaluate the extent to which the common cause hypothesis predicts associations between vision and physical health with social cognition abilities, specifically face perception and face memory. Based on a sample of 443 adults (17 to 88 years old, we test a series of structural equation models, including Multiple Indicator Multiple Cause (MIMIC models, and estimate the extent to which vision and self-reported physical health are related to face perception and face memory through a common factor, before and after controlling for their fluid cognitive component and the linear effects of age. Results suggest significant shared variance amongst these constructs, with a common factor explaining some, but not all, of the shared age-related variance. Also, we found that the relations of face perception, but not face memory, with vision and physical health could be completely explained by fluid cognition. Overall, results suggest that a single common cause explains most, but not all age-related shared variance with domain specific aging mechanisms evident.

  7. Assessment of Motivational Cognitions in Diabetes Self-Care: the Motivation Thought Frequency Scales for Glucose Testing, Physical Activity and Healthy Eating.

    Science.gov (United States)

    Parham, Sophie C; Kavanagh, David J; Gericke, Christian A; King, Neil; May, Jon; Andrade, Jackie

    2017-06-01

    There is a need for improved measurement of motivation for diabetes self-care. The Elaborated Intrusion Theory of Desire offers a coherent framework for understanding and identifying the cognitive-affective events that constitute the subjective experience of motivation and may therefore inform the development of such an instrument. Recent research has shown the resultant Motivation Thought Frequency scale (MTF) to have a stable factor structure (Intensity, Incentives Imagery, Self-Efficacy Imagery, Availability) when applied to physical activity, excessive snacking or alcohol use in the general population. The current study aimed to confirm the four-factor structure of the MTF for glucose testing, physical activity and healthy eating in people with type 2 diabetes. Associations with self-reports of concurrent diabetic self-care behaviours were also examined. Confirmatory factor analyses tested the internal structure, and multiple regressions assessed the scale's relationship with concurrent self-care behaviours. The MTF was completed by 340 adults with type 2 diabetes, and 237 from that sample also reported self-care behaviours. Separate MTFs assessed motivation for glucose testing, physical activity and healthy eating. Self-care was assessed using questions from the Summary of Diabetes Self-Care Activities. The MTF for each goal achieved an acceptable fit on all indices after selected errors within factors were allowed to intercorrelate. Intensity and Self-Efficacy Imagery provided the strongest and most consistent correlations with relevant self-care behaviours. Results provide preliminary support for the MTF in a diabetes sample. Testing of its sensitivity to change and its predictive utility over time is needed.

  8. Staged decrease of physical ability on the locomotive syndrome risk test is related to neuropathic pain, nociceptive pain, shoulder complaints, and quality of life in middle-aged and elderly people - The utility of the locomotive syndrome risk test.

    Science.gov (United States)

    Imagama, Shiro; Hasegawa, Yukiharu; Ando, Kei; Kobayashi, Kazuyoshi; Hida, Tetsuro; Ito, Kenyu; Tsushima, Mikito; Nishida, Yoshihiro; Ishiguro, Naoki

    2017-11-01

    A locomotive syndrome (LS) risk test for evaluation of physical ability is recently proposed. The objective of this study is to evaluate the utility of this test by examining physical ability, neuropathic pain, nociceptive pain, shoulder complaints, and quality of life (QOL). A prospective cohort study was conducted in 523 subjects (240 males, 283 females; mean age: 63.3 years) at a health checkup. Data collected using visual analog scales (VAS) for shoulder pain, low back pain, sciatica, and knee pain, neuropathic pain, shoulder complaint, body mass index (BMI), osteoporosis, and SF-36 were compared among three LS risk stages. Subjects in LS risk stage 1 (24%) had significantly more osteoporosis, slower gait speed, weaker muscle strength and higher VAS, with no difference in age and BMI compared to those with no LS risk (50%). Subjects in stage 2 (26%) had significantly poorer results for all items. Shoulder complaint, neuropathic pain and QOL differed significantly among all three groups and worsened with decline in mobility on the LS risk test. LS risk test is easy and useful screening tool for evaluation of mobility and for screening for pain and complaint associated with activity of daily living and QOL.

  9. Assessment of nutrition and physical activity environments in family child care homes: modification and psychometric testing of the Environment and Policy Assessment and Observation.

    Science.gov (United States)

    Vaughn, Amber E; Mazzucca, Stephanie; Burney, Regan; Østbye, Truls; Benjamin Neelon, Sara E; Tovar, Alison; Ward, Dianne S

    2017-08-29

    Early care and education (ECE) settings play an important role in shaping the nutrition and physical activity habits of young children. Increasing research attention is being directed toward family child care homes (FCCHs) specifically. However, existing measures of child care nutrition and physical activity environments are limited in that they have been created for use with center-based programs and require modification for studies involving FCCHs. This paper describes the modification of the Environment and Policy Assessment and Observation (EPAO) for use in FCCHs. The EPAO underwent a through modification process that incorporated an updated format for the data collection instrument, assessment of emerging best practices, tailoring to the FCCH environment, and creation of a new scoring rubric. The new instrument was implemented as part of a larger randomized control trial. To assess inter-rater reliability, observations on 61 different days were performed independently by two data collectors. To assess construct validity, associations between EPAO scores and measures of children's dietary intake (Healthy Eating Index (HEI) score) and physical activity (accelerometer-measured minutes per hour of moderate to vigorous physical activity, MVPA) were examined. The modified EPAO assesses 38 nutrition and 27 physical activity best practices, which can be summarized into 7 nutrition-related and 10 physical activity-related environmental sub- scores as well as overall nutrition and overall physical activity scores. There was generally good agreement between data collectors (ICC > 0.60). Reliability was slightly lower for feeding practices and physical activity education and professional development (ICC = 0.56 and 0.22, respectively). Child HEI was significantly correlated with the overall nutrition score (r = 0.23), foods provided (r = 0.28), beverages provided (r = 0.15), nutrition education and professional development (r = 0.21), and nutrition policy (r

  10. Assessment of nutrition and physical activity environments in family child care homes: modification and psychometric testing of the Environment and Policy Assessment and Observation

    Directory of Open Access Journals (Sweden)

    Amber E. Vaughn

    2017-08-01

    Full Text Available Abstract Background Early care and education (ECE settings play an important role in shaping the nutrition and physical activity habits of young children. Increasing research attention is being directed toward family child care homes (FCCHs specifically. However, existing measures of child care nutrition and physical activity environments are limited in that they have been created for use with center-based programs and require modification for studies involving FCCHs. This paper describes the modification of the Environment and Policy Assessment and Observation (EPAO for use in FCCHs. Methods The EPAO underwent a through modification process that incorporated an updated format for the data collection instrument, assessment of emerging best practices, tailoring to the FCCH environment, and creation of a new scoring rubric. The new instrument was implemented as part of a larger randomized control trial. To assess inter-rater reliability, observations on 61 different days were performed independently by two data collectors. To assess construct validity, associations between EPAO scores and measures of children’s dietary intake (Healthy Eating Index (HEI score and physical activity (accelerometer-measured minutes per hour of moderate to vigorous physical activity, MVPA were examined. Results The modified EPAO assesses 38 nutrition and 27 physical activity best practices, which can be summarized into 7 nutrition-related and 10 physical activity-related environmental sub- scores as well as overall nutrition and overall physical activity scores. There was generally good agreement between data collectors (ICC > 0.60. Reliability was slightly lower for feeding practices and physical activity education and professional development (ICC = 0.56 and 0.22, respectively. Child HEI was significantly correlated with the overall nutrition score (r = 0.23, foods provided (r = 0.28, beverages provided (r = 0.15, nutrition education and professional

  11. Testing the utility of three social-cognitive models for predicting objective and self-report physical activity in adults with type 2 diabetes.

    Science.gov (United States)

    Plotnikoff, Ronald C; Lubans, David R; Penfold, Chris M; Courneya, Kerry S

    2014-05-01

    Theory-based interventions to promote physical activity (PA) are more effective than atheoretical approaches; however, the comparative utility of theoretical models is rarely tested in longitudinal designs with multiple time points. Further, there is limited research that has simultaneously tested social-cognitive models with self-report and objective PA measures. The primary aim of this study was to test the predictive ability of three theoretical models (social cognitive theory, theory of planned behaviour, and protection motivation theory) in explaining PA behaviour. Participants were adults with type 2 diabetes (n = 287, 53.8% males, mean age = 61.6 ± 11.8 years). Theoretical constructs across the three theories were tested to prospectively predict PA behaviour (objective and self-report) across three 6-month time intervals (baseline-6, 6-12, 12-18 months) using structural equation modelling. PA outcomes were steps/3 days (objective) and minutes of MET-weighted PA/week (self-report). The mean proportion of variance in PA explained by these models was 6.5% for objective PA and 8.8% for self-report PA. Direct pathways to PA outcomes were stronger for self-report compared with objective PA. These theories explained a small proportion of the variance in longitudinal PA studies. Theory development to guide interventions for increasing and maintaining PA in adults with type 2 diabetes requires further research with objective measures. Theory integration across social-cognitive models and the inclusion of ecological levels are recommended to further explain PA behaviour change in this population. Statement of contribution What is already known on this subject? Social-cognitive theories are able to explain partial variance for physical activity (PA) behaviour. What does this study add? The testing of three theories in a longitudinal design over 3, 6-month time intervals. The parallel use and comparison of both objective and self-report PA measures in testing these

  12. Badminton Specific Testing and Development of Physical On-Court Exercise Capacity in Elite Youth Badminton Players

    DEFF Research Database (Denmark)

    Madsen, Christian Ole Møller

    specific on-court actions. It can distinguish between groups of players with different badminton skills, but similar sprint abilities The badminton-specific endurance test (B-ENDURANCE) is applicable for evaluation of badminton-specific endurance. Previous studies have tended to examine exercise capacity...

  13. Modelling of the physical behaviour of water saturated clay barriers. Laboratory tests, material models and finite element application

    International Nuclear Information System (INIS)

    Boergesson, L.; Johannesson, L.E.; Sanden, T.; Hernelind, J.

    1995-09-01

    This report deals with laboratory testing and modelling of the thermo-hydro-mechanical (THM) properties of water saturated bentonite based buffer materials. A number of different laboratory tests have been performed and the results are accounted for. These test results have lead to a tentative material model, consisting of several sub-models, which is described in the report. The tentative model has partly been adapted to the material models available in the finite element code ABAQUS and partly been implemented and incorporated in the code. The model that can be used for ABAQUS calculations agrees with the tentative model with a few exceptions. The model has been used in a number of verification calculations, simulating different laboratory tests, and the results have been compared with actual measurements. These calculations show that the model generally can be used for THM calculations of the behaviour of water saturated buffer materials, but also that there is still a lack of some understanding. It is concluded that the available model is relevant for the required predictions of the THM behaviour but that a further improvement of the model is desirable

  14. Assessing the Impact of Clothing and Individual Equipment (CIE) on Soldier Physical, Biomechanical, and Cognitive Performance Part 1: Test Methodology

    Science.gov (United States)

    2018-02-01

    March: Post-Dynamic Marksmanship End of Day Questionnaires Note: indicates cognitive tasks indicates biomechanical measures indicates physiological ...during ACSM’S resource manual for exercise testing and prescription Human Movement Science, 31(2), Proceedings of the 2016 American Biomechanics...Society Scandinavian Journal of Rehabilitation Medicine, 2, Human factors evaluation of a prototype load-carrying system Technical memorandum: CAN-LEAP

  15. Genetic testing of aetiology of intellectual disability in a dedicated physical healthcare outpatient clinic for adults with intellectual disability.

    Science.gov (United States)

    Wallace, R A

    2016-02-01

    No guidelines exist for assessment of aetiology of intellectual disability in adults with intellectual disability by adult physicians, although robust guidelines exist for paediatric populations. It was speculated that the paediatric guidelines would also be suitable for adults. In rural/regional setting with limited clinical genetics, to perform a quality assurance evaluation on genetics assessment of aetiology of developmental disability in adults attending a dedicated healthcare clinic for adults with intellectual disability, compared results with paediatric standards, speculates if these seem appropriate for adults and speculates on a role for clinical genetics services. Retrospective chart audit of eligible patients looking at genetic clinical assessment, tests selected (molecular karyotype, G banding, metabolics), and yields of positive results. The results were compared with the recommended paediatric guidelines. Of 117 eligible adult patients, ideal genetic history was incomplete for 40% of patients without Down syndrome because of physician cause and lack of information. The number of abnormal genetic results increased from 46% to 66%, mainly from the molecular karyotype, though not all may have been clinically relevant. The improved yield from this test was similar to that in paediatric studies. Use of G banding and metabolic testing could be refined. Improvement can be made in clinical genetic assessment, but results generally support use of molecular karyotyping as first tier testing of cause of unknown intellectual disability in adults, as in the case for paediatric populations. The study highlights a necessary complementary role for clinical geneticists to interpret abnormal results. © 2016 Royal Australasian College of Physicians.

  16. Accuracy of physical diagnostic tests for assessing ruptures of the anterior curciate ligament: a meta-analysis.

    NARCIS (Netherlands)

    Scholten, R.J.P.M.; Opstelten, W.; Plas, C.G. van der; Bijl, D.; Devillé, W.L.J.M.; Bouter, L.M.

    2003-01-01

    OBJECTIVE: This systematic review summarizes the evidence on the accuracy of tests for assessing ACL ruptures of the knee. SEARCH STRATEGY: A computerized search of MEDLINE (1966-2003) and EMBASE (1980-2003) with additional reference tracking. SELECTION CRITERIA: Articles included were written in

  17. Laboratory tests and identified diagnoses in patients with physical and chronic urticaria and angioedema: A systematic review

    NARCIS (Netherlands)

    Kozel, Martina M. A.; Bossuyt, Patrick M. M.; Mekkes, Jan R.; Bos, Jan D.

    2003-01-01

    Background : The value of laboratory tests in chronic urticaria is still controversial. Objective: Our aim was to assess this value in clinical studies, and to identify factors explaining the variation in the number of identified causes. Methods: A total of 4 electronic databases were searched, and

  18. Testing multi-theory model (MTM) in predicting initiation and sustenance of physical activity behavior among college students.

    Science.gov (United States)

    Nahar, Vinayak K; Sharma, Manoj; Catalano, Hannah Priest; Ickes, Melinda J; Johnson, Paul; Ford, M Allison

    2016-01-01

    Most college students do not adequately participate in enough physical activity (PA) to attain health benefits. A theory-based approach is critical in developing effective interventions to promote PA. The purpose of this study was to examine the utility of the newly proposed multi-theory model (MTM) of health behavior change in predicting initiation and sustenance of PA among college students. Using a cross-sectional design, a valid and reliable survey was administered in October 2015 electronically to students enrolled at a large Southern US University. The internal consistency Cronbach alphas of the subscales were acceptable (0.65-0.92). Only those who did not engage in more than 150 minutes of moderate to vigorous intensity aerobic PA during the past week were included in this study. Of the 495 respondents, 190 met the inclusion criteria of which 141 completed the survey. The majority of participants were females (72.3%) and Caucasians (70.9%). Findings of the confirmatory factor analysis (CFA) confirmed construct validity of subscales (initiation model: χ2 = 253.92 [df = 143], P model: χ2= 19.40 [df = 22], P < 0.001, CFI = 1.00, RMSEA = 0.00, SRMR = 0.03). Multivariate regression analysis showed that 26% of the variance in the PA initiation was explained by advantages outweighing disadvantages, behavioral confidence, work status, and changes in physical environment. Additionally, 29.7% of the variance in PA sustenance was explained by emotional transformation, practice for change, and changes in social environment. Based on this study's findings, MTM appears to be a robust theoretical framework for predicting PA behavior change. Future research directions and development of suitable intervention strategies are discussed.

  19. Fluorescent dye imaging of the volume sampled by single well forced-gradient tracer tests evaluated in a laboratory-scale aquifer physical model

    Science.gov (United States)

    Barns, Gareth L.; Wilson, Ryan D.; Thornton, Steven F.

    2012-02-01

    This study presents a new method to visualise forced-gradient tracer tests in 2-D using a laboratory-scale aquifer physical model. Experiments were designed to investigate the volume of aquifer sampled in vertical dipole flow tracer tests (DFTT) and push-pull tests (PPT), using a miniature monitoring well and straddle packer arrangement equipped with solute injection and recovery chambers. These tests have previously been used to estimate bulk aquifer hydraulic and transport properties for the evaluation of natural attenuation and other remediation approaches. Experiments were performed in a silica glass bead-filled box, using a fluorescent tracer (fluorescein) to deduce conservative solute transport paths. Digital images of fluorescein transport were captured under ultraviolet light and processed to analyse tracer plume geometry and obtain point-concentration breakthrough histories. Inorganic anion mixtures were also used to obtain conventional tracer breakthrough histories. Concentration data from the conservative tracer breakthrough curves was compared with the digital images and a well characterised numerical model. The results show that the peak tracer breakthrough response in dipole flow tracer tests samples a zone of aquifer close to the well screen, while the sampling volume of push-pull tests is limited by the length of the straddle packers used. The effective sampling volume of these single well forced-gradient tests in isotropic conditions can be estimated with simple equations. The experimental approach offers the opportunity to evaluate under controlled conditions the theoretical basis, design and performance of DFTTs and PPTs in porous media in relation to measured flow and transport properties. DFTT = Dipole Flow Tracer Test, PPT = Push Pull Tracer Test.

  20. Destructive physical analysis of hollow cathodes from the Deep Space 1 Flight spare ion engine 30,000 hr life test

    Science.gov (United States)

    Sengupta, Anita

    2005-01-01

    Destructive physical analysis of the discharge and neutralizer hollow cathode assemblies from the Deep Space 1 Flight Spare 30,000 Hr life test was performed to characterize physical and chemical evidence of operationally induced effects after 30,372 hours of operation with beam extraction. Post-test inspection of the discharge-cathode assembly was subdivided into detailed analyses at the subcomponent level. Detailed materials analysis and optical inspection of the insert, orifice plate, cathode tube, heater, keeper assembly, insulator, and low-voltage propellant isolator were performed. Energy dispersive X-ray (EDX) and scanning electron microscopy (SEW analyses were used to determine the extent and composition of regions of net deposition and erosion of both the discharge and neutralizer inserts. A comparative approach with an un-operated 4:1:1 insert was used to determine the extent of impregnate material depletion as a function of depth from the ID surface and axial position from the orifice plate. Analysis results are compared and contrasted with those obtained from similar analyses on components from shorter term tests, and provide insight regarding the prospect for successful longer-term operation consistent with SOA ion engine program life objectives at NASA.