共查询到20条相似文献，搜索用时 62 毫秒
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采用问卷调查法,以企业中的264名农民工为研究对象,对其工作价值观与组织承诺之间的关系进行了实证研究,并分析了供给-期望匹配度在二者间的调节作用。结果表明,农民工的工作价值观对其组织承诺有显著的正向影响作用,而且,在其供给-期望匹配度高的情况下,两者间的关系更强,在供给-期望匹配度低的情况下,两者间的关系很弱。 相似文献
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在技术采纳与使用统一理论(UTAUT)和任务技术匹配理论(TTF)混合分析模型中加入信任感知变量,并运用该模型分析了老年用户持续使用社会网络服务的影响因素。结果表明:技术任务匹配度、行为期望、社会影响、促成因素以及感知信任对老年用户使用社会化网络服务的意图有显著影响,而绩效期望的影响不大。这进一步说明了老年人群对社会化网络服务采购和持续使用行为不仅取取决于对技术的认识度,还取决于任务与技术的匹配度,以及对网络服务的信任度。 相似文献
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本文从人力资本与产业结构匹配的角度分析了投资效率的影响因素。采用中国30个省份1997-2013年省际面板数据,估计了人力资本与产业结构匹配度对地区投资效率的影响,并且进行了稳健性检验。在度量人力资本与产业结构的匹配程度时,利用系统理论和耦合理论,构建了匹配度的测算模型,对人力资本与产业结构的匹配程度进行了测算和分析。研究表明：中国人力资本与产业结构的匹配度整体较高,随时间变化有上升的趋势,但各省间的差异较为明显;人力资本与产业结构匹配度的提升能够提高地区投资效率。各地区在制定产业结构政策时,应注重与其人力资本禀赋相适应,提高两者匹配程度,进而改善投资效率,从而提高经济增长质量。 相似文献
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人-组织匹配:三维模型的验证及其与个体结果变量的关系 总被引：1，自引：0，他引：1
针对国内有关人-组织匹配的实证研究相对较少的状况,研究通过对6家高科技企业157名员工开展的问卷调查,探讨了人-组织匹配的结构及其与工作投入、组织公民行为和组织承诺的关系。结果验证了人-组织匹配三维模型在中国管理情境下的适用性,并发现人-组织匹配程度对员工的工作投入、组织公民行为和组织承诺均有显著影响,其中一致性匹配对员工在工作和组织方面的态度和行为都有显著影响,要求-能力和需求-供给匹配对员工的工作相关表现有较强的预测力。 相似文献
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“千军易得,一将难求”,一位杰出的首席专家往往能够带动一项重大技术的突破创新。协同创新项目组织呈现鲜明的网络特征,若仅仅依赖首席专家的个人价值,而忽视组织网络的保障作用,则容易因过于"重人才、轻组织"而导致最终创新绩效水平的削弱。在对已有文献分析的基础上,提出了以组织网络特征为调节变量的首席专家项目匹配度与协同创新绩效之间作用关系的假设模型。通过对213份问卷数据进行层级回归分析发现,首席专家与项目的技术能力匹配、与项目的愿景目标匹配以及与项目的价值观匹配均对协同创新绩效有显著的正向影响;组织网络关系强度和组织网络密度等特征均在首席专家项目匹配度与协同创新绩效之间的关系中起着正向调节作用。 相似文献
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A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
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Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
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Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
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Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
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Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
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Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献