Counselors’ Perceptions of HIV/AIDS Counseling in Botswana: Professional Identity,Practice, and Training Issues     

Rex Stockton  Tebatso Paul  Amanda Voils-Levenda  Melanie Robbins  Peiwei Li  Andrew Zaitsoff 《International journal for the advancement of counseling》2015,37(2):143-154

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Lighting design by the interflection method     

Parry Moon  Domina Eberle Spencer 《Journal of The Franklin Institute》1946,242(6):465-501

Proposed international terminology¹ used in the paper is as follows: pharos F = luminous flux (lumen), pharosage D - luminous flux density (lumen m^?2, helios H = generalized brightness (pharosage per unit solid angle, expressed in blondels).  相似文献   

Making formative assessment work     

Jo Parry 《British journal of educational technology : journal of the Council for Educational Technology》2005,36(2):350-351

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The Effect of Depth Jumps and Weight Training on Leg Strength and Vertical Jump     

David Clutch  Mike Wilton  Carl McGown  G. Rex Bryce 《Research quarterly for exercise and sport》2013,84(1):5-10

Abstract

In recent years, a method of plyometrics (exercises that cause a rapid lengthening of a muscle prior to contraction) called depth jumping has become a part of the training routine of many athletes. Two experiments are described in which the effectiveness of the exercises is examined. In Experiment 1, undergraduate students in beginning weight training classes trained with three different jumping programs: (1) maximum vertical jumps, (2) 0.3 m depth jumps, and (3) 0.75 m and 1.10 m depth jumps. In addition, all groups also lifted weights. In Experiment 2, a weight training class and the volleyball team at Brigham Young University-Hawaii were divided into two groups. One group lifted weights and performed 0.75 and 1.10 m depth jumps. The other group only lifted weights. In Experiment 1, the three training programs resulted in increases in one repetition maximum (1 RM) squat strength, isometric knee extension strength, and in vertical jump; however, there were no significant differences between treatments. In Experiment 2, all groups made significant increases in vertical jump, except the group of weight lifters, who did no jumping. It was concluded that depth jumps are effective but not more effective than a regular jumping routine.  相似文献   

Variability and Sampling Inspection in the NOCSAE Standards for Football Helmets     

G. Rex Bryce  Ruel M. Barker 《Research quarterly for exercise and sport》2013,84(2):103-108

Abstract

Because of increasing numbers of serious sports-related injuries at all levels of participation, the National Operating Committee on Standards for Athletic Equipment (NOCSAE) was formed. Among their activities aimed at improving the safety of sports participation was the development of standards for impact resistance in both new and refinished football helmets. These standards include not only recommendations as to safe levels of resistance to impact but recommendations as to the number of helmets to be tested from each group of helmets undergoing a refinishing process.

In this study the various sources of variability in the testing procedure are examined. These sources include helmet-to-helmet variability, testing variability, and basic measurement error. A careful examination of this variability in the context of the NOCSAE-recommended testing procedures for recertifying helmets reveals an inadequacy in the NOCSAE standard, in that the probability of returning unsafe helmets to the playing field is unacceptably high.  相似文献   

Microfluidic platform for the study of intercellular communication via soluble factor-cell and cell-cell paracrine signaling     

Matthew B. Byrne  Lisa Trump  Amit V. Desai  Lawrence B. Schook  H. Rex Gaskins  Paul J. A. Kenis 《Biomicrofluidics》2014,8(4)

Diffusion of autocrine and paracrine signaling molecules allows cells to communicate in the absence of physical contact. This chemical-based, long-range communication serves crucial roles in tissue function, activation of the immune system, and other physiological functions. Despite its importance, few in vitro methods to study cell-cell signaling through paracrine factors are available today. Here, we report the design and validation of a microfluidic platform that enables (i) soluble molecule-cell and/or (ii) cell-cell paracrine signaling. In the microfluidic platform, multiple cell populations can be introduced into parallel channels. The channels are separated by arrays of posts allowing diffusion of paracrine molecules between cell populations. A computational analysis was performed to aid design of the microfluidic platform. Specifically, it revealed that channel spacing affects both spatial and temporal distribution of signaling molecules, while the initial concentration of the signaling molecule mainly affects the concentration of the signaling molecules excreted by the cells. To validate the microfluidic platform, a model system composed of the signaling molecule lipopolysaccharide, mouse macrophages, and engineered human embryonic kidney cells was introduced into the platform. Upon diffusion from the first channel to the second channel, lipopolysaccharide activates the macrophages which begin to produce TNF-α. The TNF-α diffuses from the second channel to the third channel to stimulate the kidney cells, which express green fluorescent protein (GFP) in response. By increasing the initial lipopolysaccharide concentration an increase in fluorescent response was recorded, demonstrating the ability to quantify intercellular communication between 3D cellular constructs using the microfluidic platform reported here. Overall, these studies provide a detailed analysis on how concentration of the initial signaling molecules, spatiotemporal dynamics, and inter-channel spacing affect intercellular communication.  相似文献   

The Anatomy of Disruption: a preliminary consideration of interaction sequences within disruptive incidents     

William Ll. Parry‐Jones  Brenda M. Gay 《牛津教育评论》2013,39(3):213-220

Abstract

This paper deals with teacher training procedures in West Germany. It reports on observations carried out inSeminare and in schools, and provides an analysis of the principles underlying the construction of lesson plans, and of those informing teacher education in a more general sense.  相似文献   

Informationist Education     

Rex R. Robison 《Medical reference services quarterly》2013,32(3):339-347

ABSTRACT

The National Institutes of Health (NIH) funds biomedical research and conducts its own research. One way the NIH Library supports this work is by providing librarians with biomedical training and encouraging them to become embedded with researchers and administrators. Some of these “informationists” have degrees in scientific or health fields, and all engage in ongoing training, mostly through coursework at local institutions and at NIH itself. This article elaborates on the training of NIH informationists. Past research has indicated that patrons welcome librarians with biomedical training, which may in turn lead to greater communication between librarians and researchers.  相似文献   

Mass Higher Education and the English: Wherein the Colleges?     

Gareth Parry 《Higher Education Quarterly》2003,57(4):308-337

One of the distinctive features of the English encounter with mass higher education has been the uncertain and ambiguous role of further education colleges as providers of undergraduate education. Both before and during the major expansion that marked the shift to a mass scale of higher education in England, the higher education offered by colleges in the further education sector was commonly regarded as a residual or ancillary activity; its courses mostly at levels below the first degree and its growth in numbers among the slowest in higher education. In the period that followed, these same colleges were accorded a special mission in the delivery of short‐cycle undergraduate education and, through their involvement in foundation degrees, were expected to lead a large part of the expansion in future years. The elevation of this provision, from a zone of ‘low’ or no policy to one of ‘high’ policy, has coincided with a radical reform of the planning, funding and quality arrangements for post‐compulsory education. Under conditions less than favourable to the achievement of their higher education goals, colleges remain the responsibility of one administrative sector and higher education institutions the responsibility of another.  相似文献   

Analytic representation of experimental spectroradiometric curves     

Parry Moon  Domina Eberle Spencer 《Journal of The Franklin Institute》1947,244(6):441-464

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