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   1380篇
  免费   11篇
各国政治   86篇
工人农民   43篇
世界政治   66篇
外交国际关系   56篇
法律   912篇
中国政治   7篇
政治理论   217篇
综合类   4篇
  2023年   3篇
  2020年   4篇
  2019年   4篇
  2018年   12篇
  2017年   5篇
  2016年   17篇
  2015年   59篇
  2014年   52篇
  2013年   272篇
  2012年   70篇
  2011年   55篇
  2010年   81篇
  2009年   76篇
  2008年   63篇
  2007年   70篇
  2006年   73篇
  2005年   73篇
  2004年   51篇
  2003年   10篇
  2002年   29篇
  2001年   84篇
  2000年   13篇
  1999年   9篇
  1998年   6篇
  1997年   8篇
  1996年   7篇
  1995年   6篇
  1994年   9篇
  1993年   5篇
  1992年   11篇
  1991年   7篇
  1990年   3篇
  1989年   14篇
  1988年   8篇
  1987年   13篇
  1986年   18篇
  1985年   10篇
  1984年   11篇
  1983年   3篇
  1982年   13篇
  1981年   7篇
  1980年   9篇
  1979年   7篇
  1978年   7篇
  1977年   8篇
  1976年   2篇
  1975年   4篇
  1974年   2篇
  1967年   4篇
  1943年   2篇
排序方式: 共有1391条查询结果,搜索用时 15 毫秒
981.
Zusammenfassung  Im Hinblick auf das Erste Gesetz zur ?nderung des BNatSchG, die h?chstrichterliche Rechtsprechung sowie die N?te der Praxis sind artenschutzrechtliche Differenzierungen bzw. Pr?zisierungen geboten, die einerseits den strengen Anforderungen des Gemeinschaftsrechts, andererseits aber auch praktischen Erleichterungen, die der Bundesgesetzgeber anstrebt, Rechnung tragen. Der nachstehende Artikel will dazu einen Beitrag leisten.  相似文献   
982.
983.
984.
A model was outlined (i) to explain readiness to proenvironmental commitments and decisions in everyday life by six categories of predictor variables, including justice appraisals of pollution control, basic rights, appraisals of pollution, of pollution causation, of the efficacy of pollution control measures, and of ecological responsibility, and (ii) to generate hypotheses on the relationships between the predictor variables. Model variables were assessed by a questionnaire study (N=518) referring to the problem of air pollution. Proenvironmental commitments and decisions could be well predicted by morally relevant appraisals, especially by justice appraisals (e.g., approving proenvirommental laws, taxes, and subsidies, rejecting the justice of the current environmental policy and of mere appeals), whereas predictors representing self-protective motivations remained insignificant. Justice appraisals are in line with the “causation principle of justice”: Those who caused the pollution are made responsible for its reduction and should pay the costs for the pollution control. Results demonstrate that justice appraisals are essential determinants of people's ecologically relevant emotions, cognitions, and engagements. Moreover, they reveal that the responsibility for pollution control is not left with state and economy but is also regarded as a matter that concerns the citizens.  相似文献   
985.
986.
Case studies demonstrate how the Georgia Environmental Technology Consortium (GETC), a partnership between the research universities, the business community, and the state government, fosters economic development in Georgia. The technology managers, scientists, and engineers in the GETC provide environmentally sound, innovative solutions to complex industry problems improving economic development in the state. Gifts that people took for granted for centuries are clean air, water, and soil. These are now threatened. There are also dangers in the workplace. Employees are faced with workplaces which can be hazardous. In this paper we see the GETC dedicating substantial resources to natural and workplace environmental health issues. The cases cited demonstrate the technology transfer of university research into industry applications. The resulting environmentally responsible products and processes improve the general public health and the competitive position of Georgia firms, insuring more jobs and a better quality of life.  相似文献   
987.
A major criticism of research on technological innovation is the inconsistency of findings across studies. One explanation for this inconsistency may be the multiple conceptualizations of innovation used in the literature. In this study, four behaviors of innovativeness are reviewed. Factors affecting each behavior are then empirically examined indicating that the behaviors result from different factors. To ensure that future research does not simply create mini-theories of different aspects of innovation, a schema for integrating the different conceptualizations is proposed. Results of an illustrative analysis using this schema is then presented.  相似文献   
988.
989.
The applied technology transfer process is a communication process based on planning, marketing, and training. Planning is the single most important element, while pre-planning is also essential. The marketing part of applied technology transfer involves an in-depth knowledge of both consumers and products. A sound knowledge of media is also essential. The marketing step is the key delivery or transfer element. Applied technology transfer is a system that requires skills such as management and communication techniques which can be learned in traditional academic courses. However, other skills such as applied human relations are more easily learned under a supervised workshop approach. More complex technology transfer systems require additional training on a continuing education basis. The development of technology transfer learning centers can also be useful. Applied technology transfer is a research investment rather than a cost. It is the technology transfer process that insures the timely application of research effort. Research pay-off is derived from use of research products. Thus, applied technology transfer represents research delivery insurance.  相似文献   
990.
The Stevenson Technology Innovation Act of 1980 has passed Congress and has been signed by the President. The legislation accomplishes two main functions. The first part establishes an Office of Industrial Technology in the Department of Commerce which will oversee the establishment of a wide variety of university-affiliated centers. The Centers will: 1) Perform research supportive of technological and industrial innovation including cooperative industry-university basic and applied research; 2) provide assistance to individuals and small businesses in the generation, evaluation and development of technological ideas supportive of industrial innovation and new business ventures; 3) provide technical assistance and advisory services to industry, particularly small businesses; and 4) provide curriculum development, training, and instruction in invention, entrepreneurship, and industrial innovation. The second part of the Act is concerned with the utilization of Federal Technology. Some of the provisions are: 1) Each Federal Laboratory shall establish an Office of Research and Technology Applications; 2) each Federal laboratory having a total annual budget exceeding $20,000,000 shall provide at least one professional individual full-time as staff for its Office of Research and Technology Application; and 3) after September 30, 1981 each Federal agency shall make available not less than 0.5 percent of the agency's research and development budget to support the technology transfer function of the Office of Research and Technology Applications. The legislation also establishes a Center for the Utilization of Federal Technology in the Department of Commerce to serve as a central clearinghouse for the collection, dissemination, and transfer of information on Federally owned or originated technology having potential application to State and local government and to private industry.  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