首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   549篇
  免费   43篇
  国内免费   46篇
  2023年   14篇
  2022年   11篇
  2021年   9篇
  2020年   24篇
  2019年   34篇
  2018年   18篇
  2017年   28篇
  2016年   23篇
  2015年   17篇
  2014年   27篇
  2013年   49篇
  2012年   5篇
  2011年   13篇
  2010年   10篇
  2009年   10篇
  2008年   27篇
  2007年   35篇
  2006年   33篇
  2005年   44篇
  2004年   29篇
  2003年   29篇
  2002年   28篇
  2001年   12篇
  2000年   24篇
  1999年   14篇
  1998年   16篇
  1997年   5篇
  1996年   11篇
  1995年   16篇
  1994年   5篇
  1993年   3篇
  1992年   3篇
  1991年   5篇
  1990年   2篇
  1989年   2篇
  1988年   1篇
  1987年   2篇
排序方式: 共有638条查询结果,搜索用时 31 毫秒
171.
172.
Innovation is fundamental to the pharmaceutical industry and a key to improvements in healthcare. Its effectiveness depends on huge, constant investments in research. This innovative industry directly affects the course of studies in healthcare and medicine. Its efforts translate directly into the length and quality of our lives. For several years now, the progress underway in pharmaceutical industry has produced measurable benefits. Doctors have new pharmaceuticals at their disposal, including many types of antibiotics and anti-viral drugs, vaccines and a wide range of drugs which save lives or make them more comfortable. In the near future, ever more efficient cures for neoplastic, rheumatic, neurological, psychic, metabolic, circulatory or respiratory diseases can be expected. Innovation is necessary. The human population is ageing, and the task of an innovative pharmaceutical industry is to keep it in a good condition. The use of innovative drugs can translate directly into lowering the costs of illness. A continuous reduction in spending on healthcare has been observed. The costs of inventing an innovative drug are enormous though (US$ 800 million), and studies on a new drug last between 10 and 13 years. An essential element in recovering the incurred costs and ensuring funds needed for new research is protection by patent. Innovative pharmaceutical companies in Poland are committed to increasing the competitiveness and sustaining the development of not only the market, but also the entire pharmaceutical sector. It is a group of companies of crucial importance to the Polish healthcare system, as it influences improvement in the quality of medical services. Through their investments and spending on research and development, innovative companies accelerate economic growth. In Poland, the innovative pharmaceutical industry is represented by the Association of Pharmaceutical Companies Representatives in Poland (SPFFwP). An earlier version of this paper was presented at an international conference, “The Ethics of Intellectual Property Rights and Patents,” held in Warsaw, Poland on 23–24 April, 2004.  相似文献   
173.
174.
Philosophy should begin in the middle of things. I distinguish two ways in which I think that philosophy should begin in the middle of things, and then I describe the two dominant approaches to analytic philosophy today: scientific pragmatism and conceptual analysis (or, more broadly, "a priorism"). After giving reasons for dissatisfaction with both of these dominant approaches, I set out my own view – Practical Realism – and argue for the merits of its methodological and metaphysical components.  相似文献   
175.
We describe four major approaches to the study of science–historical accounts of scientific discoveries, psychological experiments with nonscientists working on tasks related to scientific discoveries, direct observation of ongoing scientific laboratories, and computational modeling of scientific discovery processes–by viewing them through the lens of the theory of human problem solving. We compare and contrast the different approaches, indicate their complementarities, and provide examples from each approach that converge on a set of principles of scientific discovery.  相似文献   
176.
Dee Carter 《Zygon》2001,36(2):357-372
Christianity's relationship with the environment is considered. From the seventeenth century, Christianity contributed to the legitimization of scientific developments that had injurious consequences for the environment. These developments were secularizing; hence the ecological crisis participates in the broader problems of secularization. Under secular hegemony, the normative model of the person as atomistic individual is integral to the problem itself as well as bereft of the spiritual resources to challenge abusive attitudes that profane God's creation. This paper proposes that responses to the ecological situation should be sought in a richer understanding of the human being: an anthropology that is not only part of the Christian legacy but also offered by contemporary sociobiology.  相似文献   
177.
对我院2001年~2005年中标的312项科研课题级别与数量,获经费资助情况,中标科研课题的学科(专业)分布,课题负责人的年龄结构进行系统地统计分析,表明我院承担科研课题的能力在逐年提高,取得了很好的科研成绩。中青年科研人员已成为我院科研发展的主力军,促进了学科的发展。  相似文献   
178.
中医科学性论析   总被引:1,自引:1,他引:0  
因为科学研究的对象是自然现象及其规律,而这一自然现象及其规律又是客观同一的,所以科学才是世界通约通用的。也正由于此,世界上可以有不同的文学、艺术、伦理、政治、哲学、宗教等等,就是不能有不同的科学。然而,中医确实带有鲜明的特殊性,至今也难以为世界所共同理解。那么中医是不是科学?又应怎样认识、理解和对待中医的科学性呢?  相似文献   
179.
The contribution of three different creativity training programmes to employees' workplace idea generation and implementation was evaluated. The research was conducted within a government organization, where 191 employees (a mixture of participants and non‐participants in creativity training) were surveyed. Analyses showed that creativity training participants in one type of course only were more likely to generate ideas back at work and that this relationship was mediated by their creative ability and motivation to innovate. However, in terms of later implementation of those ideas, the environmental factors of management support and divisional climate were much more strongly related than the creativity training.  相似文献   
180.
组织信任氛围对任务绩效的作用途径   总被引:5,自引:1,他引:4  
李宁  严进 《心理学报》2007,39(6):1111-1121
通过问卷调查与结构方程建模分析组织信任对于员工工作绩效的影响途径。203名被试和他们的上司参与了问卷调查。结果分析采用潜变量路径分析方法。我们构建多组模型与构思模型,通过两个阶段的检验,分析了组织信任的作用机制。结果表明:组织信任作用于心理安全感,而心理安全感通过两条独立途径影响工作绩效,分别是工作聚焦与工作改进。心理安全感能够促进员工针对工作的不断改进的行为和探索新工作方法的意愿,同时也有利于员工集中精力在工作上,从而提高个人工作业绩  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号