Task switching in overweight children: effects of acute exercise and age     

Tomporowski PD  Davis CL  Lambourne K  Gregoski M  Tkacz J 《运动与训练心理学杂志》2008,30(5):497-511

The short-term after effects of a bout of moderate aerobic exercise were hypothesized to facilitate children's executive functioning as measured by a visual task-switching test. Sixty-nine children (mean age=9.2 years) who were overweight and inactive performed a category-decision task before and immediately following a 23-min bout of treadmill walking and, on another session, before and following a nonexercise period. The acute bout of physical activity did not influence the children's global switch cost scores or error rates. Age-related differences in global switch cost scores, but not error scores, were obtained. These results, in concert with several studies conducted with adults, fail to confirm that single bouts of moderately intense physical activity influence mental processes involved in task switching.  相似文献   

Strategic Indicators of Mission Fulfillment at Assemblies of God Colleges: Reaching Consensus on Faith Integration and Spiritual Formation     

Charles Davis 《Christian Higher Education》2018,17(4):250-264

Strategic indicators provide timely information about the trends that reflect the current condition and trajectory of an institution in terms of its ability to pursue its mission. Although extensive research has produced a number of strategic indicators for colleges and universities, there is a dearth of research regarding strategic indicators relative to the mission of Christian higher education. In the present Delphi study, a panel of 26 academic leaders from five Assemblies of God colleges reached consensus on 28 strategic indicators relevant for use at their institutions after three rounds of questionnaires. Because the integration of faith and learning, as well as students’ spiritual formation, are distinctive to the mission of Christian higher education, there was a special emphasis on the development of these strategic indicators. The panel selected three indicators for the integration of faith and learning. According to feedback from the panel, many more indicators of integration could have been selected if panelists first agreed on a definition of the integration of faith and learning, as well as how it is to be applied across the disciplines. Two strategic indicators were selected by the panel for the spiritual formation of students, but according to panelists many more could be selected in future research if panelists shared a set of agreed-upon goals and measures of spiritual formation. These findings suggest that future research on the development of strategic indicators for institutions of Christian higher education should begin by clearly defining the concepts that are central to their mission, such as spiritual formation and integration of faith and learning, then identifying inputs, processes, and outcomes measures that are appropriate for those concepts.  相似文献   

The Effect of Whole-Body Vibration on Lower-Body Resistance Detraining in College-Age Women     

Keston G. Lindsay  David L. Nichols  Ronald W. Davis  David D. Marshall 《Research quarterly for exercise and sport》2018,89(1):57-65

Purpose: This study explored the effect of whole-body vibration (WBV) using accelerations of 2.56 g to 7.68 g on lower-body detraining. Methods: All participants (N = 20) were trained using a lower-body resistance-training program for 30 min twice per week from Week 0 to Week 6. At the end of the program, they were randomly assigned to a control group that performed no further training or a WBV group that performed a progressive static WBV program. Data for the 5-repetition-maximum (5RM) squat and extensors and flexors of the knee and ankle were collected at Weeks 0, 6, 8, 10, and 12 for all participants. Results: Two-way (condition vs. time) analysis of variance revealed that although the WBV group maintained strength in the 5RM from Week 6 through Week 8 and the control group had a lower 5RM in Week 8 from Week 6, no differences in the 5RM squat existed between the groups at Week 8. Two-way factorial multivariate analysis of variance revealed no differences between the groups at any of the time for torque of knee flexion, dorsiflexion, or plantar flexion. Conclusion: Static WBV of 2.56 g to 7.68 g did not attenuate detraining of the flexors and extensors of the knee and ankle.  相似文献   

Mormon Missionaries and the Emergence of Modern Argentine Sport, 1938–1943     

Ryan A. Davis 《国际体育史杂志》2018,35(1):61-86

Abstract

In 1938, Mormon missionaries from North America, under the leadership of Frederick Salem Williams, formed an athletic club, Club Atlético Los Mormones (‘The Mormons Athletic Club’, CALM), in Buenos Aires, Argentina. CALM would sponsor professional teams in baseball, softball, and basketball, all bearing the name Los Mormones (‘The Mormons’). Los Mormones won three league championships in the four years they played baseball and four championships in the five years they played softball. Two of their basketball players would become national all-stars, one of whom would represent Argentina at the South American Championship in 1940. Williams served as president of the softball league and vice president of the baseball league. Los Mormones’ story is outlined and situated in relation to the various discourses that, woven together, constitute the cultural context of modern Argentine sport: physical culture and modernity, United States-Argentine relations, amateurism versus professionalism, and the spread of North American sports to Latin America.  相似文献   

Structural optimization for heat detection of DNA thermosequencing platform using finite element analysis     

Hesaam Esfandyarpour  Bo Zheng  R. Fabian W. Pease    Ronald W. Davis 《Biomicrofluidics》2008,2(2)

For the past three decades, Sanger’s method has been the primary DNA sequencing technology; however, inherent limitations in cost and complexity have limited its usage in personalized medicine and ecological studies. A new technology called “thermosequencing” can potentially reduce both the cost and complexity of DNA sequencing by using a microfluidic platform [Esfandyarpour, Pease, and Davis, J. Vac. Sci. Technol. B26, 661 (2008)]. To optimize the efficiency of the technology, finite element analysis was used to model the thermosequencing system by simulating the DNA incorporation reaction series and the resulting product concentration and heat production. Different models of the thermosequencing platform were created to simulate the effects of the materials surrounding the system, to optimize the geometry of the system, and to concentrate reaction heat into specific regions for detection in the real system. The resulting concentrations of reaction products were used to calibrate the reaction speed and to design the heat sensors in the thermosequencing technology. We recommend a modified gated structure for the microfluidic detection platform by using control valves and show how this new platform could dramatically improve the detection efficiency.  相似文献   

Short Communications to the Editor     

Davis SA 《Bulletin of the Medical Library Association》1959,47(3):330-332

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Developmental disability resources on the Internet     

Davis KY 《Medical reference services quarterly》2002,21(3):75-83

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Enhancing science and mathematics teaching     

Kenneth Tobin  Nancy Davis  Kenneth Shaw  Elizabeth Jakubowski 《Journal of Science Teacher Education》1991,2(4):85-89

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Can the quality of scientific training and research in Africa be improved?     

Thomas O. Eisemon  Charles H. Davis 《Minerva》1991,29(1):1-26

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In praise of pedagogy: Silverman, RT-PE, and the illogical separation of teaching and learning.     

W E Davis  T Chandler  A W Burton 《Research quarterly for exercise and sport》1992,63(2):206; author reply 208-206; author reply 210

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