创投网络对科创企业创新绩效的影响——基于二阶社会资本的视角

创投网络由投资者及其共同投资的伙伴关系所构成,而投资者的社会资本（即二阶社会资本）对被投企业技术创新的影响机理尚不清晰。以2000—2016年间接受风险投资的1 852家生物医药企业及其所形成的2 386个创投网络为研究样本,实证分析了创投网络结构（网络闭合、网络集聚）和网络构成（投资者赛道多元度）对被投科创企业创新绩效的影响,以及投资者赛道多元度对该影响的调节作用。研究发现：创投网络闭合与企业创新绩效呈倒U形关系;创投网络集聚负向影响企业创新绩效;投资者赛道多元度的提高有助于被投企业提升创新绩效,却弱化了网络闭合与企业创新的倒U形关系。此外,投资者赛道多元度对网络集聚与企业创新关系的调节效应不显著。研究结论为创投网络与科创企业创新绩效之间的关系提供了新的见解,有助于投资者优化投资策略和管理者制订科创企业创新政策。     

对称群子集的正规闭包的生成算法及程序

根据正规闭包的意义及置换的运算特征,设计出对称群子集的正规闭包的生成算法,并且用C语言编写出相应的计算机程序.     

International student migration and social stratification in China

During the late 1990s China moved from a period of “wealth creation” that benefited the majority of the population to a period of “wealth concentration” that benefited a minority. This essay focuses on the role of international student migration from China to other countries in this process. In particular the authors delineate how different types of capital – the human, social, political and cultural (specifically foreign degrees) – transform into each other. In the process the analysis considers how the conversions among these different types of capital have intensified and have become concentrated in the top stratum of society. The essay links the international education to general patterns of social transformation currently occurring in China. Specifically the discussion brings in a transnational dimension to the examination of social stratification in contemporary China.     

期刊编辑反抄袭策略探析

编辑不仅要善于发现优秀的作品,还要善于发现抄袭等学术不端的行为,因此,编辑要掌握一些反抄袭的策略,具体包括：先鉴别电子稿中的特殊符号,再检索,然后核对参考文献,最后再利用学术不端文献系统检测。     

基于传递闭包的知识发现方法和Swanson知识发现方法的比较研究——以癌药物靶点为例

以探寻癌药物靶点间的潜在关联为例,对基于传递闭包的知识发现方法和Swanson的一阶知识发现方法进行了比较,结果得到,运用传递闭包的方法获得知识假设,可能发现更多有意义的新关联,且得到较高查全率的同时,并没有牺牲过多的查准率。     

谈基层亮点新闻的写作

时代赋予了地市级新闻工作者发掘基层新闻亮点的得天独厚的条件。地市级新闻工作者应该在提高职业素养、培养新闻悟性、背景材料采集上多下功夫。捕捉好基层新闻的亮点,写作亮点新闻,使基层新闻更好地宣传基层、服务基层。     

虚拟场景中路径搜索技术的研究

路径搜索系统一般是游戏或虚拟现实中常用的人工智能的一部分．分析讨论路径搜索系统中几种常用的路径搜索算法,对启发式路径搜索方法A^＊算法和IDA^＊算法进行了改进,在存储空间和运行时间上取得了较为平衡的效果．讨论搜索空间的几种划分方法,在导航网格的基础上实现了路径的搜索．     

大爆炸理论的新阐释与意识产生之谜——柯林·麦金的自然主义二元论探微

麦金认为,意识产生问题源于我们的空间概念未能反映空间的真正本质。真正的空间包含有大爆炸之前就存在的非空间结构,它是意识与空间之间的桥梁,但由于人类认知的局限性,这种结构是我们认识不到的。麦金的理论作为一种自然主义二元论,代表着当代心灵哲学中自然主义与二元论相融合的新走向,它对大爆炸理论所作的新颖解释也具有重要的本体论意义,但它并未消解意识产生之谜,而只是将意识之谜还原成了宇宙之谜,同时,它也未能摆脱心身二元论与心身交感论的矛盾。     

Disciplining the Future: A Critical Organizational Analysis of Internet Studies

This article provides a critical, cautionary stance toward the future structure of “Internet studies” as a field. A social constructionist reading of the process of organizing reveals the ways in which apparently obdurate structures are constructed and negotiated through everyday discursive practices. Subsequent structures and practices function ideologically to control organizational members in a concertive fashion by shaping and directing the conceptual frameworks for inquiry and action in a seemingly natural way. Definitions and metaphors construct conceptual boundaries of meaning for the field of inquiry, delimiting and protecting over time what counts as Internet and Internet studies. Over time, origins of knowledge are hidden within the structure of the organizations and a culture of unobtrusive control emerges. Unless radical measures are taken to reflexively interrogate everyday routines and habitual ways of talking in academic environments, the future field of Internet studies will not transcend the traditions of the academy but will be entrenched in and reproduce traditional structures and a traditional scholarly enterprise.     

国外对课堂教学中学生创造性问题提出能力的影响研究

创造性问题提出能力是创造力的重要组成部分,培养具有创新精神和实践能力的各级各类人才是当今教育的宗旨.本文从教师因素、同伴因素、学生自身因素三方面对课堂教学中学生问题提出能力的影响因素进行了综述.