Isolation,resilience, and faith: Experiences of Black Christian students in biology graduate programs

To increase participation of students of color in science graduate programs, research has focused on illuminating student experiences to inform ways to improve them. In biology, Black students are vastly underrepresented, and while religion has been shown to be a particularly important form of cultural wealth for Black students, Christianity is stigmatized in biology. Very few studies have explored the intersection of race/ethnicity and Christianity for Black students in biology where there is high documented tension between religion and science. Since graduate school is important for socialization and Black students are likely to experience stigmatization of their racial and religious identity, it is important to understand their experiences and how we might be able to improve them. Thus, we interviewed 13 Black Christian students enrolled in biology graduate programs and explored their experiences using the theoretical lens of stigmatized identities. Through thematic content analysis, we revealed that students negotiated experiences of cultural isolation, devaluation of intelligence, and acts of bias like other racially minoritized students in science. However, by examining these experiences at the intersection of race/ethnicity and religion, we shed light on interactions students have had with faculty and peers within the biology community that cultivated perceptions of mistrust, conflict, and stigma. Our study also revealed ways in which students' religious/spiritual capital has positively supported their navigation through biology graduate school. These results contribute to a deeper understanding of why Black Christian graduate students are more likely to leave or not pursue advanced degrees in biology with implications for research and practice that help facilitate their success.     

图书情报学合著网络研究：基于CSSCI基金论文的可视化分析

研究发现,图书情报领域的合著率处于人文社会科学的中等水平,且以2～3人的小规模合著为主导模式;同时发现基金论文有着较高的合著率,基金项目、科研团队、论文产出之间有深刻的内在联系,共同承担重大基金项目往往成为团队形成的内在机制.近年来,图书情报学已经形成“三主多辐”型庞大合著网络,跨省区、跨机构合著、区域学术融合仍亟待加强.     

基于PLC桥式起重机控制系统

本文把可编程序控制器和变频器应用于桥式起重机控制系统上,根据桥式起重机的运行特点,将桥式起重机控制系统采用变频调速系统,运用STEP7编程软件对桥式起重机控制系统进行设计,控制大车、小车的运行方向和加减速,以及吊钩的升、降方向和加减速。     

Does the Great Firewall Really Isolate the Chinese? Integrating Access Blockage With Cultural Factors to Explain Web User Behavior

The dominant understanding of Internet censorship posits that blocking access to foreign-based websites creates isolated communities of Internet users. We question this discourse for its assumption that if given access people would use all websites. We develop a conceptual framework that integrates access blockage with social structures to explain Web users’ choices, and argue that users visit websites they find culturally proximate and that access blockage matters only when such sites are blocked. We examine the case of China, where online blockage is notoriously comprehensive, and compare Chinese Web usage patterns with those elsewhere. Analyzing audience traffic among the 1000 most visited websites, we find that websites cluster according to language and geography. Chinese websites constitute one cluster, which resembles other such geolinguistic clusters in terms of both its composition and its degree of isolation. Our sociological investigation reveals a greater role of cultural proximity than access blockage in explaining online behaviors.     

众包竞赛模式下企业R&D创新水平策略博弈分析

企业RD创新需要有效利用内外部创新资源,基于众包竞赛模式的企业RD创新能够充分挖掘和激发大众的创新智慧,助力企业RD创新,已受到企业界的广泛重视。考虑RD创新模式溢出效应的不同情况下,针对企业创新模式及其投入策略选择,以及众包竞赛模式下企业间完全竞争和合作时的决策问题,建立了相应的博弈模型,分析了企业的决策对RD创新水平的影响。研究表明:较仅依靠内部资源的RD创新(A策略)收益,企业通过设置合理的奖金并结合内部创新和众包竞赛模式(B策略)是占优策略;B策略下,企业间处于完全竞争或合作的状态时,溢出效应的不同对众包竞赛模式创新能力的贡献度造成了影响;此外,企业收益、RD创新水平、消费者剩余及社会福利均与众包竞赛模式的贡献度正相关。最后以宝洁公司采用B策略对RD进行创新的案例验证了相关结论。     

大学生的阅读需求与馆藏建设

通过对上海电机学院图书馆2011年图书流通清单数据的挖掘和分析,提出了大学生阅读需求的主分量分析与提取方法.比较了常用的“使用效率”和新建议的“加权使用效率”提取大学生阅读需求主分量方法的结果,认为该方法是提取大学生阅读需求主分量的更好方法.根据本科生阅读需求,提出一种改善馆藏结构以适应该需求的方法.     

中国科学哲学元研究的演进路径——对《中国期刊全文数据库》论文的计量与可视化分析

根据《中国期刊全文数据库》收录的相关论文的分布情况,将1957-2012年期间我国科学哲学元研究划分为3个时期.利用CiteSpace软件对每个时期的研究文献的关键词进行计量和可视化分析,发现在3个时段中,我国科学哲学元研究的热点主题呈现渐次多元化的变化趋势.从传统科学哲学元研究到科学史视角下的科学哲学研究,再到"中国化"的科学哲学元研究.对近年来我国科学哲学元研究主题的分析,展现出社会科学哲学、多元化科学哲学及后现代科学哲学等研究是当前我国该领域的热点问题.     

基于关键成功因素的电子服务价值提升策略研究

本文在电子服务相关研究回顾的基础上,对2000-2012年SCI和SSCI数据库中电子服务相关文献进行检索,提取作者关键字5 562个,通过对排名前30位的作者关键字进行分类和汇总,识别出六大电子服务关键成功因素。最后以顾客满意度为中心,构建电子服务价值的顾客满意度模型,并从顾客信任、顾客预期、感知质量和感知价值角度探讨电子服务提升战略。     

熊彼特学术思想的影响路径探析

熊彼特以创新理论为核心的学术思想对管理学、经济学等领域都产生了重大的影响。通过文献计量与信息可视化的方法,结合文献共被引网络知识图谱和原始文献分析,梳理熊彼特学术思想的影响脉络。将其影响分为3个阶段,分别为：主要影响到重建、经济行为及工业制造业等领域;用以研究经济危机爆发带来的产业结构变革与制度变革等问题;应用于区域产业集群和技术创新网络的研究。熊彼特学术思想影响路径的每一个阶段都是一次实质性的理论跃迁,并且是下一阶段理论创生的必要条件。     

基于专利家族的核心技术演进分析*--以太阳能光伏电池技术为例

利用专利数据进行核心技术演进的分析是当前理论和实践性较强的研究热点问题。以太阳能光伏电池技术为例,基于专利家族的分析视角,从专利家族数量、地区分布、专利引证分析和专利共现网络等方面对核心技术演进路径进行分析。将太阳能光伏电池技术的发展分为新技术类别涌现期、技术完善期、技术调整期三个阶段。探测其核心技术的演进为l03-e05b(太阳能电池)→u12-a02a5(太阳能电池装配)→l04-c11c(半导体电极)。分析我国与美日欧在相关技术专利家族方面的差距,提出我国当前应把握技术调整期这一机遇,缩小与美日欧技术差距。