排序方式： 共有34条查询结果，搜索用时 31 毫秒
21.
Healy A Moran KA Dickson J Hurley C Smeaton AF O'Connor NE Kelly P Haahr M Chockalingam N 《Journal of sports sciences》2011,29(10):1079-1088
Most previous research on golf swing mechanics has focused on the driver club. The aim of this study was to identify the kinematic factors that contribute to greater hitting distance when using the 5 iron club. Three-dimensional marker coordinate data were collected (250 Hz) to calculate joint kinematics at eight key swing events, while a swing analyser measured club swing and ball launch characteristics. Thirty male participants were assigned to one of two groups, based on their ball launch speed (high: 52.9 ± 2.1 m · s(-1); low: 39.9 ± 5.2 m · s(-1)). Statistical analyses were used to identify variables that differed significantly between the two groups. Results showed significant differences were evident between the two groups for club face impact point and a number of joint angles and angular velocities, with greater shoulder flexion and less left shoulder internal rotation in the backswing, greater extension angular velocity in both shoulders at early downswing, greater left shoulder adduction angular velocity at ball contact, greater hip joint movement and X Factor angle during the downswing, and greater left elbow extension early in the downswing appearing to contribute to greater hitting distance with the 5 iron club. 相似文献
22.
Laurie McGarry Klose Jon Lasser Robert F. Reardon 《Educational Psychology in Practice》2012,28(4):411-424
This preliminary, exploratory study examines the impact of select social psychological phenomena on school-based ethical decision-making of school psychologists. Responses to vignettes and hypothetical statements reflecting several social psychological phenomena were collected from 106 practicing school psychologists. Participants were asked to respond by indicating the degree to which their actions in such a scenario would be influenced by the particular phenomenon being represented. Results indicate that some of these social psychological influences are present in the daily work of the school psychologist. 相似文献
23.
Jeremy Tunstall R. H. Coase Edward W. Barrett Paul C. Reardon Clifton Daniel Philip L. Geyelin 《Communication Booknotes Quarterly》2013,44(5):3-4
Les Brown, Television: The Business Behind the Box (New York: Harcourt, Brace, Javanovich, 1971—$8.95) Arnold Passman's The Deejays (New York: Macmillan, 1971— $7.95) Allan Jefferys and Bill Owen's DJ (New York: Ashley Books, 1971—$7.95) Harvey F. Swearer Commercial FCC License Handbook (Blue Ridge Summit, Pa.: Tab Books, 1971—$8.95/5.95) Dick Perry's Not Just a Sound: The Story of WLW (Englewood Cliffs, N.J.: Prentice-Hall, 1971—$6.95) 相似文献
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25.
James P. Sampson Jr. Robert C. Reardon Janet G. Lenz 《Journal of Career Development》1991,17(3):185-194
This paper presents and analyzes recommendations developed by system developers, policy makers, researchers/evaluators, and practitioners for improving the design and use of computer-assisted career guidance (CACG) systems. 相似文献
26.
Cillian Reardon Daniel P Tobin Peter Tierney Eamonn Delahunt 《Journal of sports sciences》2017,35(20):2028-2034
The aim of our study was to determine if there is a role for manipulation of g force thresholds acquired via micro-technology for accurately detecting collisions in rugby union. In total, 36 players were recruited from an elite Guinness Pro12 rugby union team. Player movement profiles and collisions were acquired via individual global positioning system (GPS) micro-technology units. Players were assigned to a sub-category of positions in order to determine positional collision demands. The coding of collisions by micro-technology at g force thresholds between 2 and 5.5 g (0.5 g increments) was compared with collision coding by an expert video analyst using Bland–Altman assessments. The most appropriate g force threshold (smallest mean difference compared with video analyst coding) was lower for all forwards positions (2.5 g) than for all backs positions (3.5 g). The Bland–Altman 95% limits of agreement indicated that there may be a substantial over- or underestimation of collisions coded via GPS micro-technology when using expert video analyst coding as the reference comparator. The manipulation of the g force thresholds applied to data acquired by GPS micro-technology units based on incremental thresholds of 0.5 g does not provide a reliable tool for the accurate coding of collisions in rugby union. Future research should aim to investigate smaller g force threshold increments and determine the events that cause coding of false positives. 相似文献
27.
Siobhan A. Reardon 《Public Library Quarterly》2016,35(4):276-281
The author of this article recognizes that massive and rapid change is a continuing feature in big libraries, and many of the changes are new: A social worker is a full-time staff member who helps other staff to sort out and deliver the best possible services to vulnerable populations, health care specialists who help plan health programs and provide direction to staff referrals to needed medical services, and librarians specially trained to help early childhood users prepare to be good learners in school. Working on this change agenda, library staff have learned that the library’s future work is not bound up by the limits of its “stuff” (i.e., owned or rented materials) or buildings but rather to the many communities of Philadelphia people whose economic, social, and cultural needs needed to be met. 相似文献
28.
Stacie H. Vernick Robert C. Reardon James P. Sampson Jr. 《Journal of Career Development》2004,30(3):201-213
A process evaluation of a three-credit, upper division career course at a southeastern university is described. Student responses to a standardized course rating instrument were analyzed. Anonymous course evaluations of 293 students enrolled in 11 sections of the career course were compared to student ratings of one section of the course 5 years earlier, and normative data taken from summary reports provided by the university. Results indicated that student perceptions of the course are consistent over time, and more positive in classes meeting multiple times per week. The course was rated higher in course demands, student-instructor involvement, and course organization than other courses. The career course was rated lower in student interest than other courses. Implications of the findings and directions for future research are discussed. Course designers and instructors might benefit from using the information gleaned from this study in structuring career courses and in planning course schedules. 相似文献
29.
School-based sexuality education remains a key response to the HIV epidemic. Drawing on findings from an ethnographic study, this study explores how young people engage with sexuality and HIV- and AIDS-related education as it is delivered through the Life Orientation (LO) learning area in South Africa, in order to understand the dynamics that support or hinder engagement. Focus group discussions were held with Grade 9 and 11 learners (aged 14–18 years) from 16 randomly selected public secondary schools across three provincial districts. Results show that enjoyment of LO education was related to perceived relevance and distinctiveness, informal lesson delivery, subjective assessment standards and seemingly minimal effort. However, the perception of reduced effort tarnished the status of LO and young people’s motivation to participate. Learner engagement is influenced by a variety of cognitive, affective and behavioural pathways including internalised discourse around HIV and AIDS, gender and sexuality; the quality of youth–educator relations and teaching competencies; peer pressures; and broader cultural dynamics. The cultivation of a learning environment in which young people share and debate their views promotes engagement and critical thinking. In-service and pre-service educator training, structured activity plans and monitoring are recommended to advance the content knowledge and pedagogy of educators. 相似文献
30.
James P. Sampson Jr. Michael Shahnasarian Robert C. Reardon 《Journal of Career Development》1988,15(2):75-86
James P. Sampson, Jr. is an Associate Professor in the Department of Human Services and Studies at The Florida State University. Michael Shahnasarian is President of Career Consultants of America. Robert C. Reardon is a Professor in the Department of Human Services and Studies and Director of the Curricular-Career Information Services at The Florida State University. The first and third authors also co-direct the Center for the Study of Technology in Counseling and Career Development. Support for this study was provided by a grant from the W. K. Kellogg Foundation through Project LEARN. The authors acknowledge the support and assistance of personnel at the American College Testing Program and the Educational Testing Service in completing this research. The authors also acknowledge the assistance of Terry Katz in the data analysis for this study. 相似文献