管理层风险特质、董事会治理与科技保险参保意愿

本文综合行为金融、公司治理和公司金融理论构建科技保险参保意愿影响因素的理论模型,并基于浙江省635家高新技术企业的问卷调查数据进行实证检验。结论表明:第一,管理层风险偏好和管理层风险认知对高新技术企业科技保险参保意愿具有显著影响:风险喜好型管理者更倾向于采取风险自担策略,抑制科技保险需求;而较高的风险认知则有助于提升企业购买科技保险的意愿。第二,良好的董事会治理有助于提升企业风险管理,独立董事占比越高,企业购买科技保险的意愿越强。第三,管理层风险认知在董事会独立性与企业参保意愿之间发挥部分中介作用,这意味着董事会治理可以通过影响管理层风险认知,间接作用于企业的风险管理决策。     

“互联网+”环境下大学生网络信息消费影响因素的实证研究

[目的/意义]为探究互联网+环境下大学生网络信息消费的影响因素,[方法/过程]通过对国内外研究现状以及互联网发展现状的了解,探讨分析了大学生网络信息消费的内涵、大学生网络信息消费的现状以及互联网+对大学生网络信息消费的影响,并采取实证研究的方式,运用SPSS软件对调查问卷所得数据进行信度分析、效度分析、相关性分析和主成分分析,[结果/结论]得出大学生网络信息消费的主要影响因素,并针对大学生网络信息消费当前存在的问题给出优化对策。     

自动分类在搜索引擎性能优化中的应用

本文论述了自动分类在搜索引擎中的作用,介绍了网页自动分类实现的方法,分析了网络自动分类系统的实例,最后展望了自动分类在搜索引擎中的应用前景.     

新产品概念开发研究:历史、现状和未来方向

新产品概念开发一般指生成新产品创意、产品概念评估和比选等一系列工作，许多研究表明产品概念开发是产品创新过程极为重要的一环。论通过献分析指出新产品概念开发是一个新出现的研究领域，二十世纪80年代新产品概念开发研究主要集中在概念生成方法上，到90年代则更多的关注概念选择评价问题。质量功能分解（QFD）方法是众多概念开发方法中较为重要的一种，论介绍了这一方法的产生，发展和使用中存在的问题。最后论分析了新产品概念开发研究的若干重要方向。     

Liquid–Liquid Extraction and Solid Phase Extraction for Urinary Organic Acids: A Comparative Study from a Resource Constraint Setting

Pre analytical process of extraction for accurate detection of organic acids is a crucial step in diagnosis of organic acidemias by GCMS analysis. This process is accomplished either by solid phase extraction (SPE) or by liquid–liquid extraction (LLE). Both extraction procedures are used in different metabolic laboratories all over the world. In this study we compared these two extraction procedures in respect of precision, accuracy, percent recovery of metabolites, number of metabolites isolated, time and cost in a resource constraint setup. We observed that the mean recovery from SPE was 84.1 % and by LLE it was 77.4 % (p value <0.05). Moreover, the average number of metabolites isolated by SPE and LLE was 161.8 ± 18.6 and 140.1 ± 20.4 respectively. The processing cost of LLE was economical. In a cost constraint setting using LLE may be the practical option if used for organic acid analysis.     

"十五"我国科技经费投入目标研究回顾与反思

本文回顾和总结了我国“十五”科技经费投入目标论证过程,提出了科技经费投入目标体系的概念,对GDP数据调整后2005年我国科技经费投入目标实现程度进行了分析;认为“十五”规划研究预期的5个科技经费投入目标有3个可以超额实现、1个基本达到,但“十五”规划公布的R＆D经费与GDP的比值达到1.5%的规划目标难以实现;文章对今后国家科技经费投入目标的选择提出了建议.     

Secondary immunization inhibits drug induced apoptosis<Emphasis Type="Italic">in vivo</Emphasis>

Immunization with a proper dose of an antigenic stimulus leads to cell proliferation and antibody response of circulating lymphocytes. We have previously observed that Secondary immunized spleenocytes resist ceramide-mediated apoptosisin vitro. Our present study is aimed at investigating thein vivo effect of immunization on apoptosis. Mice were subjected to either Primary or Secondary dose with Tetanus Toxoid. Unimmunized spleenocytes served as controls. Unimmunized, Primary and Secondary immunized mice were later exposed to chemotherapeutic drugs such as Etoposide/Methotrexate/Vincristine to induce apoptosis. Apoptosis was studied by using the Feulgen reaction on 5μ thin parafin sections of spleen. It was observed that Secondary immunized mice showed a lower percentage of apoptosis as compared to Primary or Unimmunized mice that was subjected to either of the chemotherapeutic drugs. It was thus concluded that Secondary immunization inhibits the process of chemotherapeutic drug induced apoptosis in vivo.     

中美图书情报学硕士研究生教育比较研究

文章通过对中美图书情报学硕士研究生课程设置对比，以及我国图书情报学发展趋势的分析，提出了对我国图书情报学硕士研究生教育的一些改进意见。     

Building parallel corpora by automatic title alignment using length-based and text-based approaches

Cross-lingual semantic interoperability has drawn significant attention in recent digital library and World Wide Web research as the information in languages other than English has grown exponentially. Cross-lingual information retrieval (CLIR) across different European languages, such as English, Spanish, and French, has been widely explored; however, CLIR across European languages and Oriental languages is still in the initial stage. To cross language boundary, corpus-based approach is promising to overcome the limitation of the knowledge-based and controlled vocabulary approaches but collecting parallel corpora between European language and Oriental language is not an easy task. Length-based and text-based approaches are two major approaches to align parallel documents. In this paper, we investigate several techniques using these approaches and compare their performances in aligning English and Chinese titles of parallel documents available on the Web.