高等院校运动队的管理及发展趋势

高校运动队是竞技体育中相当活跃的一支力量.由于高校有其它体育机构无法相比的师资优势、选材优势及设施优势,使其运动队的不断发展拥有了较好的软硬件基础.如果在管理的各个环节上能够协调配合,高校运动队必将在体育多元化、社会化的未来体坛上一展其运动水平与运动文化之风姿.     

Psychophysical conditions and hormonal secretion in nurses on a rapidly rotating shift schedule and exposed to bright light during night work

The psychophysical conditions of 15 young female nurses, working in a rapidly-rotating shift system (2-2-2-2), modified according to some psychophysiological criteria, and exposed to short period (4 × 20 min) of bright light (2350 Lux) during their night duty, were studied in order to evaluate their adaptation to night work and to test a possible positive effect on it of bright light. Subjective evaluations of work load and psychophysical conditions, performance measures, hormonal excretion (cortisol, 6-sulphatoxymelatonin and catecholamines), oral temperature and activity-sleep logs were taken during the shiftwork cycle, comprising one morning, one afternoon and two consecutive nights under normal and bright light. The results showed that this rapidly-rotating shift system had little effect upon the normal circadian rhythms of the body. Moreover, the lengthening of the night shift to 10 h can be considered to be acceptable, provided that work load is reduced and there are sufficient rest pauses available. On the other hand, the reduction to 7 h of the length of the day shifts and delayed start of the morning shift to 07:00 h appeared to be convenient both in relation to the work load and sleep duration. Some positive effects of bright light upon psychophysical conditions and performance efficiency were noted, while hormonal excretion and body temperature did not show any effect of bright light; in particular, melatonin excretion was not suppressed appreciably by the bright light used.     

普通高校体育教学内容改革构想

普通高校体育教学内容在以“健康第一”及“终身健身”思想的指导下,改造竞技体育运动项目,吸取我国民族、民间传统体育,安排足够时间的体育与健康理论知识的传授。面向全体学生,调动其学习积极性,提高大学生身心健康水平与终身健身的意识。     

Physical exercise,employee fitness and the management of health at work

Abstract

This paper presents some recent data on why organizations invest in exercise and physical fitness programmes for their stiff. These data suggest that, owing to a lack of evaluation studies, organizations act mainly on the basis of assumption and belief. However, from a subsequent review of the available literature on the personal and organizational effects of such programmes, it appears that these assumptions and beliefs are not altogether unfounded. The paper concludes by discussing the ways in which exercise and employee fitness programmes might help die individual and their organization in terms of the management of health at work.     

普通高校学生健身运动处方及效果的分析

通过12周的教学实验对比，跟踪研究与分析，探讨了健身运动处方对大学生体育锻炼效果的影响。结果表明：实验前后男（女）1000m（800m）、肺活量、台阶指数指标均有显著性差异，说明在高校体育课程改革中，实施健身运动处方是可行的、有效的，能够满足大学生体育锻炼的个性化的需求。     

四川省区域经济增长趋同与分异研究

根据1978--2005年四川省各市州的人均GDP数据，以新古典增长理论为基础，对四川区域经济增长进行研究。结果表明：在整个时段上，四川区域经济增长经历了趋同一分异一趋同的过程；在1978--1990年期间，区域经济增长存在显著趋同且趋同速度较快，但在1990--2005年期间，区域经济增长分异的趋势较强。趋同的趋势不甚明显；通过引入控制变量和地区虚拟变量分析，说明在社会主义市场经济体制建立的过程中。四川区域经济增长存在条件收敛，五大经济区有“俱乐部”趋同的倾向。     

Individual Differences in Women's Salivary Testosterone and Estradiol Following Sexual Activity in a Nonlaboratory Setting

Objectives: The current study evaluated women's salivary testosterone and estradiol levels before and after exposure to sexual stimuli in a U.S. sex club. Methods: Behavioral data and salivary samples were collected from 19 women during semistructured interviews. Results: Findings demonstrate substantial individual differences in the magnitude and direction of women's hormonal changes following sexual activity. Conclusions: In an age of individualized medicine, these findings highlight the need to better understand factors shaping variation in physiological responses to sexual activity. Findings contribute to a relatively small and contradictory literature on women's hormonal responses to sexual stimuli.     

中国农业现代化发展水平时空格局及趋同演变

采用熵权TOPSIS法对我国2001—2012年31省份的农业现代化发展水平进行综合评价,进而采用GIS技术对我国农业现代化发展水平进行空间格局分析,并运用Markov链方法对我国农业现代化水平的趋同演变进行了实证研究。研究发现：（1）整体上我国农业现代化水平从东部到中部再到西部梯度降低,且存在显著的空间自相关,发展水平相似的地区呈现集聚分布;（2）农业现代化水平还表现出一定的俱乐部趋同特征,随着时间积累,各俱乐部的趋同迹象有所缓解,但一直都存在着“高水平垄断”现象;（3）空间因素对地区农业现代化的发展具有积极影响,高水平的邻居更能带动本地区农业现代化水平的提高,研究还发现在考察期内这种带动作用需要3年的时间积累才能体现。     

分层次构建普通高校乒乓球教学俱乐部

分层次教学理论、体育教学俱乐部理论以及在体育教学俱乐部实施分层次教学的理论均表明,分层次构建普通高校乒乓球教学俱乐部在实现以人为本的现代教育理念过程中具有重要作用。     

基于改进遗传算法的单级多项目无能力约束生产批量问题研究

通过对单级多项目无能力约束生产批量问题(SMULP)模型进行分析，得出了一些重要的结论．分析了基本遗传算法的缺陷及其产生的原因．对该问题在遗传算法的编码、适应度函数、选择复制操作、交叉方法、交叉概率、变异概率和终止条件等各个环节进行了改进．采用VB6．0对SMULP改进遗传算法编程实现，能很好地与ERP软件集成．并对SMULP改进遗传算法进行了性能分析．