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牛顿是一名伟大的科学家,在许多领域均有过创造性的成就,对社会的发展和历史的进步曾经作出杰出的不可磨灭的功绩.然而,后人在对其广泛深入的研究中却发现了牛顿令人遗憾的另一面,本文从牛顿生平、功绩、留下的遗憾三个方面对牛顿进行了分析研究,深刻反思了牛顿性格两极化的根本原因,对牛顿的成败给出了自己的结论,可供今天的科研工作者参考. 相似文献
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2008年第29届奥林匹克运动会将在我国首都北京举行,这将会对我国的体育事业产生强大的推动力.我国教练员、运动员职业道德水平的高低将直接影响举办奥运会的质量.因此,我们要加强对教练员、运动员职业道德的培养,以奥运的目标管理他们,在奥运会的赛场上展现出我们最为优秀的一面. 相似文献
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发明与发现是社会进步的车轮。发明与发现是一个国家的骄傲与光荣,同时又是全人类共同的文化财富。没有发明与发现的民族,无疑是最悲哀和可怜的民族。没有发明与发现的国家,注定要承受羞愧受辱的命运。人类的历史是发明与发现的历史。古往今来,已有数不清的发明与发现问世,遗憾的是人们在享受这些智慧灵光所带来的进步与便捷的同时,却很少会回眸深望,仔细思考它们的重大意义。从本期开始,我们将陆续遴选出涉及18大类共100项古今中外最具代表性的发明与发现奉献给读者。这些发明发现至今影响着我们社会生活的方方面面,基本反映人类发明与发现的总体面貌。本期首先推出的是如今最让老百姓食之忧患,弃之不能的食品饮料篇。发明与发现的总 相似文献
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员工中最缺乏的是什么?99%的领导者的答案是缺乏创造性思维.那么,你的公司投入了足够的时间和资源培养员工的创新能力吗? 一个很有意思的问题是:你能想象出10个人类做不到的事情吗?在笔者做过的全球25个国家1400多场同样的测验中,得到的最普遍的答案是飞翔、时光倒流、长生不老、返老还童等等.这些答案虽然正确,但是每个人都知道,这是知识,并不是想象力. 相似文献
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随着我国经济的腾飞,我国大众传播媒体的飞速发展,广告已无孔不入地进入中国民众的生活中.广告对人们的影响日益广泛而深入.作为广东省相对经济落后的梅州地区,也与众多的城市地区一样,无时无刻不处于媒体广告信息的笼罩之下.媒体广告对梅州社会的影响已经不仅仅限于向受众提供商品信息,创造需求以刺激产品的销售量,还对梅州人消费行为、生活观念、生活方式等带来了较大的影响和变化. 相似文献
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中国古代的服饰中包含着各种各样的形制符号,其中以皇帝的服饰最为详尽繁复,每一种形制的出现都有特定的象征意义,不同的时代也赋予同样的形制符号以不同的象征含义.最典型的例子就是龙袍,在历史的演变过程中,逐渐成为皇权的象征. 相似文献
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基于技术引进、消化吸收的自主创新困境及消解对策 总被引：3，自引：3，他引：0
实现技术、经济的持续发展必须重视技术引进后的消化和吸收再创新.国家对于技术引进应有明确的战略目标,必须形成一套机制,有效地对国内企业实现激励、导向和制约的作用,促进企业技术引进后能够消化吸收进行自主创新.必须坚持制度创新,建立现代企业制度,使企业真正成为技术引进的主体、技术创新的主体.企业在引进技术时必须注重技术引进的先进性及本土化,技术引进后必须加大研发投入量并最终形成拥有自主知识产权的核心专利技术. 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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Benoît Godin 《Research Policy》2004,33(8):1217-1229
High technology is a concept much in vogue in OECD countries, for it is a symbol of an “advanced” economy. This paper looks at why and how the concept and its indicator acquired such fame. It explains that the reason has to do with the fact that the indicator emerged in the context of debates on the competitiveness of countries and their efforts to maintain or improve their positions in world trade. The first part looks at the early statistics behind the indicator (R&D/sales), statistics developed in official analyses of industrial R&D surveys before the 1950s. The second part traces the evolution of the R&D/sales ratio in the 1960s through its use as an indicator of research or technological intensity. The third part discusses the internationalization of the indicator via the OECD. 相似文献
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随着国内外政治、治安局势的不断变化,公安机关处置突发事件的能力必然要求进一步提升。现场动态实时图像是现场动态情况最真实客观的反应,实时了解和掌握现场动态情况是有效处置的关键,多层次、多模式、面向多业务的综合业务承载和应用平台,实现视频监控图像的动中通,为领导快速作出决策提供依据。发展移动无线图像传输系统是提升公安机关依法履职能力的重要手段,随着无线图传系统建设和应用的不断推进,必将会成为公安科技的新亮点。 相似文献
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This paper examines the category of "Woman" within the metastructure of a system of knowledge organization. We trace the subject scheme used to list books about women in a standard bibliographic guide over the first three-quarters of the twentieth century.Building on the feminist critique of subject representation, our analysis documents how the category was continually constructed over time, providing evidence of multiplication, isolation, and confusion in the process. The outcome is a framework that fails to capture the complex nature of knowledge about women and conceals relationships to the larger body of knowledge. The case of this legacy system exemplifies problems associated with representing the complexity and integration of knowledge and provides a basis for considering the potential residual impacts of current information organization and navigation systems. 相似文献
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孵化器与风险投资融合模式研究 总被引：1，自引：0，他引：1
近加年来,世界各国为了推动高新技术产业的发展,普遍采用孵化器与风险投资融合的模式.孵化器和风险投资在形成的背景、追求的价值、主要的服务功能、关注的空间和时间形态上有所不同,但在发展方向、运行模式、投资领域的专业化和退出方式上存在着很多的共同点,并且在项目源、管理、资金和政策上存在着很强的互补性,两者的融合将是"双赢"或者"三赢"的结果,融合非常必要,彼此都有融合的利益和风险.因此,二者的融合成为一种必然的趋势,也必定能促进风险投资和孵化器的共同发展,寻求它们之间的融合机制也变得越来越重要. 相似文献
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The effect of administration of N-acetylcysteine on ethanol and paracetamol induced hepatotoxicity was studied both biochemically
and histopathologically in experimental rats. The liver samples taken after twentyfour hours from the paracetamol administered
normal and alcoholic animals showed high degree of necrosis and related pathological changes. In the N-acetylcysteine treated
alcoholic rats and in the N-acetylcysteine pretreated paracetamol administered rats, the liver cells showed very little change
and appeared almost normal as evidenced by the histopathological studies. The activities of serum transaminases and phosphatases
were also high both in the alcohol treated and in the paracetamol administered animals. N-acetylcysteine treated animals partly
restored the serum transaminase and phosphatase activities, and the activities of the antiperoxidative enzymes. There was
also significant change in the serum and tissue lipid levels, and in the concentration of the tissue lipid peroxidation product-malondialdehyde
in both the alcohol treated and in the paracetamol administered groups. N-acetylcysteine treatment brought the serum and tissue
lipid levels, and the tissue malondialdehyde content towards normal. 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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维修打印机之前需要对打印机出现的问题有一些了解。打印机出现问题后，首先是利用打印机自检系统进行检测，通过打印机自带的指示灯或者是蜂鸣器的声音来加以判断：其次，可以进行线路观察，看部件是否正确工作，针对不同的故障情况锁定相关的部件，再确定存在问题的部件；再次，可以使用测试法，进行测试页打印或者局部测试打印机内部件，查寻故障原因。 相似文献
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Alistair Black 《The Information Society》2001,17(1):63-80
Contrary to the "retro" image often awarded them, and despite their continuing enthusiasm and responsibility for the organization of printed materials, librarians are upbeat about the prospects of an information society driven primarily by electronic technologies, but in which libraries can play an important part. Public librarians detect a natural correlation between the historic democratic mission of their institution and the increased accessibility made possible by digitalized sources. The library community's acceptance of the information society idea as a "given" social phenomenon supports discourses that play down historical continuities and herald the dawn of a new age. Such discourses ignore or reject historical evidence that points to the existence of past information societies, revolutions, and infrastructures defined, in part, by the operation of indirect surveillance, constituted by the bureaucratic information systems of modernity. Victorian Britain serves as a good example of an early information society, to which public libraries, themselves micro-information societies, contributed significantly. The role played by public librarians in the Victorian information society, illustrated in this article by evidence drawn from the contemporary library press, is seen in their preoccupation with the surveillance and ordering of knowledge; their adoption for library operations of the businesslike, bureaucratic procedures described recently by business historians; and their panoptic tracking of users and their activities. 相似文献