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Some time earlier1 we treated our readers to an exoteric narrative of special relativity’s kinematics in which we shunned the use of mathematical formulas. However, the simple and concise account presented then has left quite a few questions open, and we now present the promised sequel to supply the requisite answers.  相似文献   
33.
外包制胜--华中农业大学图书馆编目业务外包的实践与思考   总被引:17,自引:0,他引:17  
本文以华中农业大学图书馆委托书商进行编目业务外包为实例,论述了图书馆在外包市场不太成熟的环境中如何运作,才能在业务外包活动中制胜的方方面面。并就编目业务外包的健康发展问题提出了自己的思考。  相似文献   
34.
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.  相似文献   
35.
太平军复克安庆后 ,积极开展根据地建设。安庆根据地成为太平天国统治时间最长 ,形势相对稳定的根据地之一。  相似文献   
36.
绿色化学作为一门全新的课程,是人类实现可持续发展的重要保证,化学作为一门以实验为基础的科学更应该贯彻绿色化学、绿色实验这一理念.针对国内目前关于中学化学实验绿色化设计从思想体系角度进行研究尚属空白的现状,本文分析了中学化学实验绿色化教育的现状并运用绿色化学理念对中学化学实验绿色化设计思想体系进行了较为详尽的阐述.  相似文献   
37.
Six preschoolers with Down's syndrome who attended a centre-based educational intervention program, for three mornings a week, were assessed on the Merrill-Palmer Scale and matched on chronological age (CA), mental age (MA), intelligence quotient (IQ) and the mother's educational level. Three of them also attended regular preschools, two days per week, but the rest did not. Children were reassessed on the Merrill-Palmer Scale one year late. At that time, parents were interviewed in order to determine their views on the educational intervention program. Results indicated that all children increased in terms of MA, but decreased in terms of IQ and that children in the Program Plus Preschool group, fared better than those in the Program Only group in terms of both MA and IQ. Responses to interview questions indicated that parents were very satisfied with the program; they felt that their children's therapy sessions and the training that they themselves received as part of the intervention, were the most beneficial aspects.  相似文献   
38.
在民法中请求权基础是处理事务的核心工作。本文通过对具体案例的分析,来论述请求权基础的方法在解决具体民事案例中的运用。  相似文献   
39.
Dietary restriction (DR) also called dietary control or calorie restriction is reported to have many advantages with regard to human health. It leads to suppression of obesity, mitigates free radicals and increases available antioxidants which are accounted for extending the life span of individuals. DR is also reported to induce synthesis of heat shock proteins in animals as a control mechanism against stress. Further, it is known to play a significant role in decreasing toxicity and lethality due to a variety of toxic chemicals and drugs by stimulating tissue repair damaged by the toxicants leading to restoration of intact organ and its functions. Moreover, extensive work done on animals indicate DR has an important role in suppressing certain types of cancer. In this review an effort is made to highlight the various advantages of DR from the point of human health perspective.  相似文献   
40.
本体论在公共部门知识管理体系中的应用探析   总被引:3,自引:0,他引:3  
提出了本体论对公共部门知识管理体系构建的必要性,并基于本体论探讨公共部门知识管理体系的构建,包括知识发现、知识录入、知识检索模块的建立,以及知识管理体系中智能代理服务的构建。  相似文献   
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