21世纪的主要技术──生物技术─—生物技术产品的回顾和展望

本文介绍了生物技术的定义及其技术体系，并从生物技术产品的角度综述了生物技术的过去、现在和未来．     

NH_2D斯塔克盒的研究

介绍了10.6μm 双光路稳频中使用的斯塔克盒,盒内含有由 ND_3-NH_3,混合形成的 NH_2D气体,当斯塔克调谐到 CO_2激光器 P(20)支线中心时,在133Pa 总气压下,吸收系数为0.012cm~(-1),击穿电压>600V.     

用TEMcell进行电磁兼容性测试的理论与实践

讨论了横电磁波小室（ＴＥＭｃｅｌｌ）在电磁兼容性测量中的应用，着重讨论应用ＴＥＭｃｅｌｌ测量受试设备的辐射干扰特性的理论基础和测量技术。就原理上而言，电磁泄漏源是电气小的，且可用三个等效的正交电偶极矩和三个等效的正交磁偶极矩来描述，通过测量确定这些组合偶极矩的振幅和相位。给出了实测结果。     

细胞膜渗透性实验的改进

对高等学校教材中"细胞膜的渗透性"这一实验作了进一步改进.把红细胞置于不同摩尔浓度的NaCl和同一摩尔浓度的醇中,检测红细胞内渗透压的大小,对细胞膜在不同物质的高渗、低渗和等渗溶液中的通透性进行了探究.增加了实验的推理性,把验证性实验转变为探究性实验.     

The Revitalization of Community Practice: Characteristics,Competencies, and Curricula for Community-Based Services

Abstract

A recent move toward community-based services on the part of direct service agencies presents a major opportunity for the revitalization of community practice. Driven by funding from major philanthropic foundations and also by recent changes in federal entitlement legislation, these efforts at system reform are designed to make services for vulnerable populations more effective, accessible, integrated, and comprehensive in the context of the local community. Although this service reorganization requires the type of methods typically found in community practice, direct service workers employed in these agencies usually have not been trained in community work. To begin to address this concern, this article uses a computerized word search to review the community practice and community organization literature. A working definition of “community-based” practice is developed. The extensive literature review yields six characteristics of community-based service delivery: (1) neighborhood-based and family-focused; (2) strengths- and empowerment-oriented; (3) cultural sensitivity and multi-cultural competency; (4) comprehensive services; (5) access to integrated services and supports; and (6) teamwork and leadership skills. The article reviews what scholars have recommended in each of these areas as a way of understanding the characteristics of community-based service delivery and the skills needed by direct practitioners working in community-based programs. The article summarizes innovative curricula and specific courses which demonstrate ways of teaching community skills to direct practice workers. Future work for community practice scholars and educators is recommended.     

Smartphones and Face‐to‐Face Interaction: Digital Cross‐Talk During Encounters in Everyday Life

Using data collected from focus groups and nonparticipant observations, this article explores how and why cross‐talk by way of smartphone affects face‐to‐face encounters. The findings show there are three types of digital cross‐talk: exclusive, semi‐exclusive, and collaborative. Furthermore, it was found that digital cross‐talk can either facilitate or disrupt the expressive order of an encounter. Semi‐exclusive and collaborative digital cross‐talk were found to facilitate encounters. Exclusive digital cross‐talk was found to disrupt or have little influence on encounters, depending on whether or not interlocutors successfully engaged in a corrective process, an avoidance process, or aggressive face‐work.     

手机文化与大学生思想政治教育

手机文化的精彩纷呈发展，不仅给人们带来了生活质量的提高、情感交流的方便和娱乐内容的丰富多彩，而且也正在悄然影响着人们的生活习惯和思想观念。大学生是手机文化的重要受众之一，手机文化的传播和影响是思想政治教育工作面临许多新问题，深入地分析研究并正确地对待手机文化，是做好新时期高校思想政治教育工作的重要前提和基础。     

几种贝类组织细胞培养的研究

贝类组织细胞培养研究始于上世纪六十年代。相对于建系技术已很成熟的哺乳动物和昆虫,贝类细胞培养的发展一直处于落后状态。现综述几种作为重要海产养殖品种的贝类组织细胞培养的研究,并总结目前在该领域面临的问题,以期为摸索贝类细胞培养条件、进一步建立起细胞系提供参考。     

单箱三室连续宽箱梁有效宽度分析

箱梁在受弯时，横桥向存在剪力滞效应，为了在计算中应用初等材料力学方法求解，采用了翼缘有效宽度方法。以某实桥为背景，通过对单箱三室连续宽箱梁空间实体模型进行了有限元分析，计算得出了箱梁顶板及底板的有效分布宽度系数ρs及ρf，并与规范值进行了比较，可为同类工程设计提供参考。     

太阳能电池专利分析方法研究

文章在专利文献数据的基础上,从总体层面和公司层面对太阳能电池领域进行研究。除了采用传统的统计、关联等分析方法外,还结合不同国家专利特点采用一些新型的分析方法,得出了太阳能电池领域的主要技术发展趋势和处于领导地位的公司在该领域的主要动态等有价值的结论,从而对企业制定战略决策提供支持。