Communication centers at colleges and universities: Transitioning from a course resource to an institutional resource     

Luke LeFebvre  Leah LeFebvre  Dale Anderson 《Communication Teacher》2019,33(2):179-188

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新奥运会周期男子体操竞争态势及发展趋向的研究   总被引：8，自引：0，他引：8  

韩华  李向东  王鲁克 《哈尔滨体育学院学报》2005,23(2)

依据第28届奥运会体操比赛实况录像和2005年国际男子体操评分规则的变化内容,采用调研访问法、录像统计法及文献资料法,系统分析了新奥运会周期世界男子体操竞争态势与发展趋向:中、俄两国“统治性”竞争格局分离,中、日、美等多国“无统性”纷争金牌的态势形成,团体和全能将在新的格局下进行全方位的“稳定性”竞争。而针对新规则各项技术变化趋向特点的训练,是单项发展的重点。  相似文献   

Metropolis redux: the unique importance of library skills in informatics.     

Samuel Bishop King  Kate MacDonald 《Journal of the Medical Library Association》2004,92(2):209-217

OBJECTIVES: The objective is to highlight the important role that librarians have in teaching within a successful medical informatics program. Librarians regularly utilize skills that, although not technology dependent, are essential to conducting computer-based research. The Metropolis analogy is used to introduce the part librarians play as informatics partners. Science fiction is a modern mythology that, beyond a technical exterior, has lasting value in its ability to reflect the human condition. The teaching of medical informatics, an intersection of technology and knowledge, is also most relevant when it transcends the operation of databases and systems. Librarians can teach students to understand, research, and utilize information beyond specific technologies. METHODS: A survey of twenty-six informatics programs was conducted during 2002, with specific emphasis on the role of the library service. RESULTS: The survey demonstrated that librarians currently do have a central role in informatics instruction, and that library-focused skills form a significant part of the curriculum in many of those programs. In addition, librarians have creative opportunities to enhance their involvement in informatics training. As a sample program in the study, the development of the informatics course at the Massachusetts College of Pharmacy and Health Sciences is included. CONCLUSIONS: Medical informatics training is a wonderful opportunity for librarians to collaborate with professionals from the sciences and other information disciplines. Librarians' unique combination of human research and technology skills provides a valuable contribution to any program.  相似文献   

Effects of heat acclimation on hand cooling efficacy following exercise in the heat     

Elizabeth L. Adams  Lesley W. Vandermark  J. Luke Pryor  Riana R. Pryor  Rachel M. VanScoy  Craig R. Denegar 《Journal of sports sciences》2017,35(9):828-834

This study examined the separate and combined effects of heat acclimation and hand cooling on post-exercise cooling rates following bouts of exercise in the heat. Seventeen non-heat acclimated (NHA) males (mean ± SE; age, 23 ± 1 y; mass, 75.30 ± 2.27 kg; maximal oxygen consumption [VO₂ max], 54.1 ± 1.3 ml·kg^?1·min^?1) completed 2 heat stress tests (HST) when NHA, then 10 days of heat acclimation, then 2 HST once heat acclimated (HA) in an environmental chamber (40°C; 40%RH). HSTs were 2 60-min bouts of treadmill exercise (45% VO₂ max; 2% grade) each followed by 10 min of hand cooling (C) or no cooling (NC). Heat acclimation sessions were 90–240 min of treadmill or stationary bike exercise (60–80% VO₂ max). Repeated measures ANOVA with Fishers LSD post hoc (α < 0.05) identified differences. When NHA, C (0.020 ± 0.003°C·min^?1) had a greater cooling rate than NC (0.013 ± 0.003°C·min^?1) (mean difference [95%CI]; 0.007°C [0.001,0.013], P = 0.035). Once HA, C (0.021 ± 0.002°C·min^?1) was similar to NC (0.025 ± 0.002°C·min^?1) (0.004°C [?0.003,0.011], P = 0.216). Hand cooling when HA (0.021 ± 0.002°C·min^?1) was similar to when NHA (0.020 ± 0.003°C·min^?1) (P = 0.77). In conclusion, when NHA, C provided greater cooling rates than NC. Once HA, C and NC provided similar cooling rates.  相似文献   

Changes in kinematics and arm–leg coordination during a 100-m breaststroke swim     

Samuel W. Oxford  Rob S. James  Michael J. Price  Carl J. Payton  Michael J. Duncan 《Journal of sports sciences》2017,35(16):1658-1665

The purpose of this study was to compare arm–leg coordination and kinematics during 100 m breaststroke in 26 (8 female; 18 male) specialist breaststroke swimmers. Laps were recorded using three 50-Hz underwater cameras. Heart rate and blood lactate were measured pre- and post-swim. Arm–leg coordination was defined using coordination phases describing continuity between recovery and propulsive phases of upper and lower limbs: coordination phase 1 (time between end of leg kick and start of the arm pull phases); and coordination phase 2 (time between end of arm pull and start of leg kick phases). Duration of stroke phases, coordination phases, swim velocity, stroke length (SL), stroke rate (SR) and stroke index (SI) were analysed during the last three strokes of each lap that were unaffected by turning or finishing. Significant changes in velocity, SI and SL (P < 0.05) were found between laps. Both sexes showed significant increase (P < 0.05) in heart rate and blood lactate pre- to post-swim. Males had significantly (P < 0.01) faster swim velocities resulting from longer SLs (P = 0.016) with no difference in SR (P = 0.064). Sex differences in kinematic parameters can be explained by anthropometric differences providing males with increased propelling efficiency.  相似文献   

A comparison of the impacts of continuous and interval cycle exercise on perceived exertion     

Marcus W. Kilpatrick  Samuel J. Greeley  John M. Ferron 《European Journal of Sport Science》2016,16(2):221-228

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University,Knowledge and Regional Development: Factors Affecting Knowledge Transfer in a Developing Region     

Neba Samuel Fongwa 《Africa Education Review》2016,13(3-4):191-210

The role of knowledge in the current knowledge economy cannot be overly emphasised. Successful regions are continuously being linked to excellence in the production, accumulation, and application of knowledge. Universities have increasingly been at the centre of such knowledge production, application and transfer. Yet, there is little research and evidence in this regard pertaining to less developed countries. The paper aims to fill this gap. The study uses the conceptual notion of knowledge transfer to interrogate the engagement level between the university and its region. Using a qualitative approach comprising the use of primary and secondary data, the authors capture some of the factors affecting knowledge transfer. Highlighting both supply-side and demand-side factors, the authors argue in favour of a nuanced and complex negotiation of the knowledge-development interface between universities as knowledge producers and regional stakeholders as knowledge users. Such negotiations should take cognisance of local realities.  相似文献   

Some correlates of the choice of educational streams in Israeli High Schools     

Avi Hofstein  Ruth Ben-Zvi  David Samuel  Richard F. Kempa 《科学教学研究杂志》1977,14(3):241-247

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Students with special educational needs within PISA     

Barbara W. LeRoy  Preethy Samuel  Marcella Deluca  Peter Evans 《Assessment in Education: Principles, Policy & Practice》2019,26(4):386-396

Abstract

Since 2003, the Programme for International Student Assessment (PISA) has included students with special educational needs (SEN), identified as those with functional disabilities, those with cognitive/behavioural/emotional disabilities and those with limited test language proficiency. While the number of countries and included students has increased with each test administration, the percentage of students with SEN remains extremely low. The inclusion of these students is not an intentional PISA design parameter but rather a response to the interaction between the need to maintain strict sampling criteria and country-level educational mandates to include SEN students in standardised testing. Based on the analysis of student participation and performance across four cycles of PISA (2003–2012), this paper examines the challenges that exist in current PISA procedures related to: student sampling, eligibility and identification; assessment methodology; and reporting results. PISA practices, their limitations for scientific inferences and recommendations for design improvements are given.  相似文献   

Bounding,An Accessible Method for Estimating Principal Causal Effects,Examined and Explained     

Luke Miratrix  Jane Furey  Avi Feller  Todd Grindal  Lindsay C. Page 《Journal of research on educational effectiveness》2018,11(1):133-162

Estimating treatment effects for subgroups defined by posttreatment behavior (i.e., estimating causal effects in a principal stratification framework) can be technically challenging and heavily reliant on strong assumptions. We investigate an alternative path: using bounds to identify ranges of possible effects that are consistent with the data. This simple approach relies on fewer assumptions and yet can result in policy-relevant findings. As we show, even moderately predictive covariates can be used to substantially tighten bounds in a straightforward manner. Via simulation, we demonstrate which types of covariates are maximally beneficial. We conclude with an analysis of a multisite experimental study of Early College High Schools. When examining the program's impact on students completing the ninth grade “on-track” for college, we find little impact for ECHS students who would otherwise attend a high-quality high school, but substantial effects for those who would not. This suggests a potential benefit in expanding these programs in areas primarily served by lower quality schools.  相似文献