On the theory of electron scattering in gases     

Allan C.G. Mitchell 《Journal of The Franklin Institute》1929,207(6):753-763

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Velocity and acceleration of arrows. weight and efficiency of bows as affected by backing of bow     

C.N. Hickman 《Journal of The Franklin Institute》1929,208(4):521-537

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Teacher perceptions of a physical education statewide assessment program     

Rink J  Jones L  Kirby K  Mitchell M  Doutis P 《Research quarterly for exercise and sport》2007,78(3):204-215

A statewide program assessment was established to make positive change in physical education school programs in South Carolina. Reform efforts depend both on balancing accountability for change and teacher support for change (Odden &Anderson, 1986). The purpose of the study was to determine teacher perceptions of the South Carolina Physical Education Assessment Program and its effects across six related themes including: changes in teaching and learning, changes in curriculum and instruction, teacher awareness of the assessment program, teacher support for the program, work place conditions, and the advocacy role of the program. It was also the purpose of this study to determine if the survey responses were in any way related to teacher and school variables. The overall results of the study indicated positive change and support for the assessment program, supporting the viability of the standards, assessment, and accountability reform effort to positively impact physical education programs.  相似文献   

A vacuum technic for the chemist     

K. Hickman 《Journal of The Franklin Institute》1932,213(2):119-154

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Training technology: No big thing!     

Don Mitchell 《Performance Improvement》1989,28(10):30-31

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Relationships between Challenge Tour golfers’ clubhead velocity and force producing capabilities during a countermovement jump and isometric mid-thigh pull     

Jack E.T. Wells  Laura H. Charalambous  Andrew C.S. Mitchell  Daniel Coughlan  Simon L. Brearley  Roger A. Hawkes 《Journal of sports sciences》2019,37(12):1381-1386

A number of field-based investigations have evidenced practically significant relationships between clubhead velocity (CHV), vertical jump performance and maximum strength. Unfortunately, whilst these investigations provide a great deal of external validity, they are unable to ascertain vertical ground reaction force (vGRF) variables that may relate to golfers’ CHVs. This investigation aimed to assess if the variance in European Challenge Tour golfers’ CHVs could be predicted by countermovement jump (CMJ) positive impulse (PI), isometric mid-thigh pull (IMTP) peak force (PF) and rate of force development (RFD) from 0–50 ms, 0–100 ms, 0–150 ms and 0–200 ms. Thirty-one elite level European Challenge Tour golfers performed a CMJ and IMTP on dual force plates at a tournament venue, with CHV measured on a driving range. Hierarchical multiple regression results indicated that the variance in CHV was significantly predicted by all four models (model one R² = 0.379; model two R² = 0.392, model three R² = 0.422, model four R² = 0.480), with Akaike’s information criterion indicating that model one was the best fit. Individual standardised beta coefficients revealed that CMJ PI was the only significant variable, accounting for 37.9% of the variance in European Challenge Tour Golfers’ CHVs.  相似文献   

Attention getters     

Don Mitchell 《Performance Improvement》1985,24(1):28-28

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Attention getters     

Don Mitchell 《Performance Improvement》1985,24(10):C11-C12

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Just plain talk part 2: On can do,but won't/don't do performers     

Don Mitchell 《Performance Improvement》1993,32(2):39-40

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Just plain talk part 4: On using job performance aids in lieu of or as an adjunct to training     

Don Mitchell 《Performance Improvement》1993,32(5):32-33

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