在万能工具显微镜上测量齿轮截面整体误差的研究

本文论述在万能工具显微镜上测量渐开圆柱齿轮截面整体误差的测量原理、测量方法和数据处理过程,并给出了测量实例。     

政府工程采购的发展情况及存在问题

政府采购机制是规范化我国政府投资建设项目管理的一个重要工作领域。文章针对我国政府采购和政府工程采购的基本发展情况进行了说明，并对政府工程采购发展过程中存在的主要问题进行了分析。     

浅谈房地产营销策划的几个问题

当前房地产业市场竞争十分激烈 ,房地产市场营销中不可避免地存在着一些问题 ,针对这些问题 ,探讨如何搞好房地产的营销策划 .     

澳大利亚的反田园诗

本文主要论述澳大利亚的反田园诗。它通过对一些原始而丑陋的自然物象的描写，揭示了宇宙的本质和人类的本质，进而反映了时空无限、存在与虚无以及美丑共存的哲学本质。     

论章黄学派的汉字系统观念

章黄学派从一开始就十分注重对汉字体系的系统性进行探索 ,从章太炎首创的“语根”说 ,到黄侃对“变易”和“孳乳”、“笔势”和“笔意”的深入阐释 ,从陆宗达的字源学研究 ,到王宁关于汉字构形学理论框架的建构 ,经过几代人的不断努力、不断完善 ,章黄学派的汉字系统观念已逐渐发展为一种科学系统的汉字理论 ,成为我国汉字学史上一条闪亮的红线     

水书文字“酉、鸡”字形书写特色初探

水族古文字是一种发展不成熟的文字,在从“酉、鸡”字形书写特色,探索水族古文字的一般规律以及与甲骨文的联系。     

论秘密拘留制度的改进

2012年3月14日,十一届全国人民代表大会第五次会议对刑事诉讼法的修订使秘密拘留浮出水面,由此引发了争议。由于我国的秘密拘留制度自身存在较多缺陷,目前受制于诸多因素,比较现实可行的方法是对秘密拘留制度加以改革与完善,主要思路是:秘密拘留的适用必须坚持相称性与必要性原则;建议将"不通知家属"的批准权移交人民检察院行使;严格限缩"不通知被秘密拘留人家属"的期间;拓展通知被秘密拘留人家属的内容;绝对禁止私设法外秘密拘留场所;改革错误秘密拘留赔偿制度;加强人民检察院对秘密拘留的控制和监督。     

交错的历史：1950年代的中国农村妇女——《村庄视野中的阶级、性别与家庭结构：以1950年代湘北塘村为中心的考察》

李斌《村庄视野中的阶级、性别与家庭结构：以1950年代湘北塘村为中心的考察》一书,以湘北塘村为个案,通过大量的口述资料和地方文献,质疑和深化了前人关于妇女解放和男女平等的经典论述。不同于以往革命史叙事下以国家为主体的论述,作者紧紧围绕性别、家庭和阶级三个维度,从女性视角出发,展现了农村妇女在解放前、土地改革时期、农业合作化时期和“大跃进”运动时期中切实的出境和生命体验,揭示了不同时期男女平等与不平等、妇女解放与未解放的复杂性,因而也刷新了我们对1950年代中国农村妇女的认识。     

Do resources of network members help in help seeking? Social capital and health information search

Does social capital as resources of network members affect health information search? Analyzing data from the 2004 General Social Survey in the United States, this study measures two social capital indicators (average education of network members and proportion of network members with a high school degree or higher) using the name generator. Most results are consistent using those two indicators. Both indicators are positively associated with frequency of health information seeking and seekers’ frequency of use of two sources (friends or relatives and the Internet). Also average education of network members is positively associated with seekers’ diversity of used sources and frequency of consultation with medical professionals. But neither indicator is associated with seekers’ frequency of use of other four sources (health-related magazines or newsletters, general magazines, daily newspapers, and radio or television programs). The findings demonstrate the theoretical utility of social capital in the social dynamics of medical help-seeking.     

Contents of heavy metals in arable soils and birth defect risks in Shanxi, China: a small area level geographic study

The burgeoning demands of China’s urbanization and industrial development put pressure on the resources of the entire country and have direct and indirect effects on the health of individuals, at times in areas far removed from cities themselves. Current evidence suggests that heavy metal pollution in soil, a common by-product of coal mining and other industrial activities, may be linked to risk of birth defects. We examine this hypothesis using small area level data including soil samples and detailed birth records from 2002 to 2004 from 97 villages in Shanxi province, a heavy coal-mining region. We find that soils containing arsenic, lead, and nickel are significantly correlated with the incidence of birth defects. In particular, we find a strong positive dose-dependent association of birth defects with lead, a moderate positive effect with arsenic, and a dose-dependent negative association with nickel. These results are consistent with the postulated link between arsenic and lead and human birth defects, but raise questions about the effects of nickel in this context. China’s rapid urbanization underscores the need for closer attention to the relationship between the health and the environment.