Assessing structural correlates to social capital in Facebook ego networks

Research in computer-mediated communication has consistently asserted that Facebook use is positively correlated with social capital. This research has drawn primarily on Williams’ (2006) bridging and bonding scales as well as behavioral attributes such as civic engagement. Yet, as social capital is inherently a structural construct, it is surprising that so little work has been done relating social capital to social structure as captured by social network site (SNS) Friendship networks. Facebook is particularly well-suited to support the examination of structure at the ego level since the networks articulated on Facebook tend to be large, dense, and indicative of many offline foci (e.g., coworkers, friends from high school). Assuming that each one of these foci only partially overlap, we initially present two hypotheses related to Facebook social networks and social capital: more foci are associated with perceptions of greater bridging social capital and more closure is associated with greater bonding social capital. Using a study of 235 employees at a Midwestern American university, we test these hypotheses alongside self-reported measures of activity on the site. Our results only partially confirm these hypotheses. In particular, using a widely used measure of closure (transitivity) we observe a strong and persistent negative relationship to bonding social capital. Although this finding is initially counter-intuitive it is easily explained by considering the topology of Facebook personal networks: networks with primarily closed triads tend to be networks with tightly bound foci (such as everyone from high school knowing each other) and few connections between foci. Networks with primarily open triads signify many crosscutting friendships across foci. Therefore, bonding social capital appears to be less tied to local clustering than to global cohesion.     

沙发检测装置应力及疲劳性能研究

为提高折叠沙发检测装置可靠性，满足技术机构开展检测工作的需求，提出采用有限元分析的方法，对装置的腿 部、座部和背部受力单元进行应力和疲劳性能研究。根据应力云图优化装置结构，利用疲劳分析模块Fatigue Tool模拟 装置耐久性能。模拟结果验证了装置耐久性设计的合理性。     

严格产品责任原则传统定义之内在瑕疵 ———以美国产品责任法为视角

传统的严格产品责任原则并未对产品缺陷的类型进行区分,而是一概地适用于产品责任纠纷领域,无论生产者有无过错或能否预见风险的发生,都会导致产品责任的承担,严格责任呈现绝对化的倾向。随着产品责任诉讼的发展以及开发风险抗辩的确立,生产者的严格责任在美国产品责任法中的适用范围渐趋缩小,由最初的产品责任领域的一概适用调整为仅仅在制造缺陷案件中发挥效用,而在设计缺陷和警示缺陷案件中,生产者承担过失责任。中国的产品责任法由于法律移植的偏差与滞后,并未适当地确定严格责任原则在产品责任法中的地位,亦未能妥善解决严格责任原则与开发风险抗辩的关系。     

GDSS的基本决策网络模型

为构建 GDSS决策网络引入一个分析模型——决策网络图来研究任务环境和组织设计之间的交互作用 ,提出 GDSS的基本决策网络结构为级联式和二层多分支树型结构 ,借助概率影响图对该决策网络的优化问题进行了形式描述 ,并给出协同工作方式的分类和任务环境的分析步骤 .     

LED显示屏专用插件机的优化设计

为了提高LED显示屏的插装生产效率，提出了优化设计LED显示屏插件机的方案，采用锥形孔来校正LED管 脚，利用LED外形定位的方法来进行精准插件，省略LED管脚的裁剪环节和传输环节，使结构变得简洁，有效地节省产 品成本，通过对关键部件进行仿真分析，表明初步实现了目标。     

小波变换在液氮制冷式露点自动检测中的应用

采用小波变换的Ｍａｌｌａｔ算法，求取智能露点仪温度曲线的拐点，这种算法的显著特点是可于背景噪音中很好地提取用用信号，在３－５次测量中，即可得到重复性极好的曲线拐点值，与传统的最小二乘拟合建模方法相比，不但可以减少测量次数，而且使露点温度值的自动检测达到了更高的准确性和稳定性。     

中国传统官僚制的弊端解析——以韦伯现代官僚制为比较对象

滥觞于先秦时期的中国传统官僚制，是家国同构、高度集权的家产官僚制，它不具备现代官僚制理性精神和法制原则，其浓重的人治传统对中国人的观念影响十分深刻。虽然西方新管理主义呼吁摈弃现代官僚制，但相对于中国传统官僚制而言，现代官僚制的优势是明显的。由于中国的市场经济基础、法治环境、非政府组织和公民社会的发展现状与现代官僚制的产生条件有一定距离，因此，中国政府当务之急不是模仿新公共管理模式，而是立足实际，坚决摈弃传统官僚制，学习和借鉴西方现代官僚制的合理成份，构建具有中国特色的行政管理体制。     

论消费者的知情权

消费者享有知悉其购买、使用的商品或接受的服务的真实情况的权利,商品的生产者和销售者应无条件、硬性地向消费者讲解.文中在论述我国消费者知情权法律保障不足的基础上,提出了完善我国消费者知情权法律保障的措施.