行政性垄断与我国未来的反垄断立法

我国发展社会主义市场经济需要完善的反垄断立法。根据垄断的产生与行政权力的 关系,垄断分为经济性垄断和行政性垄断,由于我国市场经济发展的特殊性,行政性垄断构成了 对市场自由公平竞争秩序的主要危险,因此,未来我国的反垄断立法必须将反行政性垄断行为作 为其首要任务进行重点规制,即行政性垄断对未来我国的反垄断立法提出了一定的特殊要求。     

谈正确运用体态语言优化英语教学

改进英语课堂教学方法是实现教学目标、提高教学质量与效果的重要因素。正确运用体态语可简化英语教师课堂教学语言、优化教学效果     

中国农村环境关系失衡的博弈分析

环境关系是环境主体间的利益关系,环境侵权的发生是环境关系失衡的主要表现,中国农村环境污染态势加剧主要根源于中国农村环境关系失衡.环境污染的过程就是环境主体间的博弈过程,中国农村环境主体间的博弈具有很多特点,分析中国农村环境侵权发生的微观机理,可以比较准确地把握中国农村环境关系失衡的本质.要改善中国农村环境污染状况,就必须改善中国农村居民在博弈过程中的微弱地位,形成良性的环境关系制衡机制,从而使中国农村环境关系从失衡走向和谐.     

浅析体育教学中的教师主导作用与学生主体地位

在教学中，教师的主导作用发挥的越充分，越能调动学生的积极性和主动性，学生的主体作用发挥的越充分，就越能体现教师的主导作用。两者密切结合，相辅相成，不但有利于全面提高教学质量，而且有利于全面提高学生的健康水平和身体素质，更好地完成体育教学任务。     

The advertising performance of non-ideal female models as a function of viewers' body mass index: a moderated mediation analysis of two competing affective pathways

Advertisements often display ideal female bodies which create unattainable standards of beauty, generating body anxiety and disorders in female viewers. Accordingly, public health concerns would encourage the use of natural, unedited models in advertisements. However, the advertising performance of natural models remains contentious. We argue that previous inconsistent findings about this performance may result from a complex causal framework in which natural models impact performance through two affective mediators (body anxiety, and repulsion toward the model), while allowing moderation by the viewer's own body mass index (BMI). Data collected in a nationally representative sample of 400 young women largely (but not entirely) validate this causal framework. Natural models triggered repulsion in viewers with higher BMI, which hurt advertising performance. Body anxiety, however, was positively correlated with advertising performance, and did not mediate any effect of natural models.     

水锁作用对煤体瓦斯涌出影响的研究与发展

矿井工作面瓦斯超限严重影响着矿井安全生产和生产效率,现用解决该问题的方法存在局限性,不能广泛适用于所有矿井。针对该问题,采用水及含添加剂水阻碍和延缓煤体内瓦斯解吸速度,以达到降低工作面瓦斯涌出量的目的。本文通过对其抑制原理相关研究的介绍,为同类工作面瓦斯超限治理提供基础理论依据。     

退休老年人身体形态与力量素质相关关系的研究

近年来老年人的身体健康现状日益成为人们关注的焦点问题之一,为了对退休老年人的身体健康状况有进一步的了解,对58-68年龄段退休老年人进行身体形态和力量素质的测试。研究发现身高与握力（r=0.659）、体重和握力（r=0.655）均有显著相关性,且呈正相关趋势,身高与体重（r=-0.243）呈负相关。因此在适度原则下,应加强以力量素质为主的体育锻炼,其对于提高身体素质,增进健康有非常重要的意义。     

高校大学生体质健康状况分析研究

文章通过查阅资料法,对目前我国高校大学生体质健康状况分析,发现我国普通高校大学生体质健康水平总体有呈逐年下降趋势,大学生身体形态水平总体呈上升趋势,身体机能和身体素质水平总体有所下降,特别是力量素质下降最为明显。     

HXD2型电力机车轴箱体缺陷原因分析和工艺改进

本文对HXD2型电力机车轴箱体缺陷产生原因进行了分析,并提出了轴箱体的改进措施。     

Book reviews

Abstract

This article examines the cultural field of fitness as a network of producers, consumers, products and practices that has developed around the care of the body through physical exercise. Drawing on a thematic text analysis of US exercise manuals, the paper focuses on how the commercial fitness field naturalizes associations between physical exercise and leisure, and between leisure and self‐work. In particular, the analysis examines three themes and their relevance to our broader understanding of leisure in contemporary consumer society: the management of leisure time; the use of leisure for self‐investment strategies; and the promotion of consumption as the framework for leisure and an accompanying notion of pleasure. The fitness field casts light on how leisure more generally is constructed as a sphere of obligations to make productive use of one’s time, to improve one’s body and self, and to do so through the wares of the consumer marketplace. The cultural imaginary of leisure as a time of freedom from work and responsibility is thus recast, in an age of individualization, as a time of freedom to accomplish the work of self‐production.