基于不同动机的联盟控制方式选择及其对联盟绩效的影响——中国企业联盟的实证分析

企业为了不同的目标建立战略联盟,而有效的联盟控制是实现目标的重要保证.本文从战略联盟的动机出发,提出实现不同联盟目标所应采取的控制方式,并研究了不同的联盟控制方式对联盟绩效的影响.通过企业间联盟的数据对本文相关假说进行了实证检验.     

ICT投资、互联网普及和全要素生产率

本文使用DEA-Malmquist指数方法对2002-2012年我国分行业全要素生产率、技术效率与技术进步进行测算,并基于我国地区投入产出表构建了ICT资本投入强度。在此基础上,本文就ICT投资对生产率的影响进行了实证检验。研究发现,ICT投资对全要素生产率提升具有积极作用,并且主要通过ICT投资促进技术效率提升实现。面板门限回归模型的结果显示,只有达到一定互联网普及率时,ICT投资促进技术效率提升的作用才显现,并在高互联网普及率时进一步增强;但在高互联网普及率下,ICT 投资对技术进步存在抑制作用,在全要素生产率层面表现为ICT 投资的促进作用消失。因此,现实的ICT 投资应重视通过信息化管理提升行业资源的有效利用能力,以最大化技术效率对全要素生产率的贡献;应充分考虑不同行业和地区的互联网普及程度,以深度激发“连接经济”对于释放ICT效能的互补性作用;还应注意配套相应产业政策,以减轻互联网发展对技术进步的阻碍作用。     

一类新型的准光学功率合成系统

本文提出并发展一类新型的毫米波准光学功率合成系统,它分为多振荡器的合成结构与多器件振荡的合成结构.应用导波场论和有源微波电路的本征函数近似分别对两种结构的特性进行研究,导出合成条件、策动点阻抗,耦合输出性质等,所进行的实验工作取得了与理论预期的结果.     

转移支付与公共品均等化分析

 基于1995-2004年间省级面板数据的估计结果显示，税收返回对各地的城乡公共品差距扩大起了强化作用，财力性转移支付和专项转移支付对各地城乡公共品差距的缩小作用不大；转移支付规模的公共品因素考虑不合理；最后，提出了相关的政策建议。     

走向学术化的批评:苏雪林1930年代作家论研究

在中国现代作家论的发展进程中,苏雪林1930年代的作家论以其特有的史识意识、细致周详的理性评析和比较视野中的感性言说等个性化方式,完成了作家论批评体式的基本架构。正是凭借这种虽不完美却独具特色的走向学术化的作家批评实践,苏雪林奠定了她在中国现代作家论发展史上的一席之地。     

国内关于日本关东军要塞研究述评

国内关东军要塞研究历经几十年的发展,取得了一系列引人瞩目的成果.大致上,可以分为三个时期,即1992年以前的资料准备期,1992年至1999年的研究起步期,2000年至今的蓬勃发展期.通过对以往的研究回顾,建立一个以研究关东军要塞为主体,涉及中国强制劳工、化学战、细菌战、慰安妇等相关问题的"要塞学",是当务之急.     

Predicting Teen Motherhood and Teen Fatherhood: Individual Characteristics and Peer Affiliations

In a longitudinal investigation of the antecedents and pathways of teen parenthood, 475 participants (248 females and 227 males) were followed from Grade 7 through early adulthood. In the first year of the investigation, homogeneous subgroups were identified by clustering participants on five characteristics (i.e., aggression, popularity, academic competence, age, and socioeconomic status). At the same time, peer social networks were identified by the Social Cognitive Map procedure. For each participant, the configuration of peer characteristics was also identified. A high correspondence was found between the individual characteristics and the characteristics of closely affiliated peers. Both teen fatherhood and teen motherhood were predicted by individual configurations and peer configurations (e.g., a combination of high aggression, low academic competence, low popularity, and low family SES). Peer characteristics, race, and family socioeconomic status assumed unique roles in predicting teen motherhood. Growth curve analyses showed that teen-mothers differed from non-mothers in their starting points and developmental trajectories. This study demonstrated that a simultaneous examination of both the individual and his/her peer context yielded important information on teen parenthood.     

The Role of Emotions in Risk Communication

We present two experiments investigating the role of emotions concerning technological and natural hazards. In the first experiment, technological hazards aroused stronger emotions, and were considered to be riskier than natural hazards. No differences were found between the texts versus audio presentations. However, the presence of pictures aroused stronger emotions and increased the perceived risk. Emotions play a mediating role between hazard types and perceived risk, as well as between pictures and perceived risk. The second experiment adopted real‐world materials from webpages and TV. Emotions again play a mediating role between pictorial information and risk perception. Moreover, specific emotions were found to be associated with different types of action tendencies. For example, loss‐based emotions (e.g., fear, regret) tend to lead to prevention strategies, whereas ethical emotions (e.g., anger) lead to aggressive behavior. We also find that loss‐based emotions in the technical hazard scenario trigger more coping strategies (from prevention to retaliation) than in the natural hazard scenario.     

印制电路板自动测试系统的设计与应用研究

采用ＣＭＯＳ开关阵列对印制电路板测试系统的组成、测试原理与软件编程技术进行了自动测试的设计与应用研究。结果表明，该系统可有效提高印制电路板的测试水平。在保障产品质量的同时，大幅度提高了生产效率，实现了预期的系统性能与技术指标的要求。     

INGER观察圃稻种资源在泸州的观察与利用

对 1994～ 1998年通过“国际水稻遗传评价网”(INGER)引进的 351份“灌溉稻极早熟、早熟观察圃”(IIRON -VE/E)稻种资源进行了初步的观察研究 ,从中筛选出一批具有优异性状的基因型供育种利用