全文获取类型
收费全文 | 124351篇 |
免费 | 1618篇 |
国内免费 | 242篇 |
专业分类
教育 | 86199篇 |
科学研究 | 13460篇 |
各国文化 | 1983篇 |
体育 | 9560篇 |
综合类 | 188篇 |
文化理论 | 1065篇 |
信息传播 | 13756篇 |
出版年
2021年 | 953篇 |
2020年 | 1664篇 |
2019年 | 2548篇 |
2018年 | 3092篇 |
2017年 | 3349篇 |
2016年 | 3395篇 |
2015年 | 2306篇 |
2014年 | 3189篇 |
2013年 | 27256篇 |
2012年 | 2398篇 |
2011年 | 2769篇 |
2010年 | 2356篇 |
2009年 | 2624篇 |
2008年 | 2413篇 |
2007年 | 2144篇 |
2006年 | 2373篇 |
2005年 | 2361篇 |
2004年 | 3038篇 |
2003年 | 2366篇 |
2002年 | 2163篇 |
2001年 | 2079篇 |
2000年 | 1749篇 |
1999年 | 1622篇 |
1998年 | 1461篇 |
1997年 | 1521篇 |
1996年 | 1692篇 |
1995年 | 1464篇 |
1994年 | 1472篇 |
1993年 | 1465篇 |
1992年 | 1521篇 |
1991年 | 1459篇 |
1990年 | 1458篇 |
1989年 | 1368篇 |
1988年 | 1227篇 |
1987年 | 1161篇 |
1986年 | 1179篇 |
1985年 | 1464篇 |
1984年 | 1310篇 |
1983年 | 1301篇 |
1982年 | 1270篇 |
1981年 | 1188篇 |
1980年 | 1175篇 |
1979年 | 1301篇 |
1978年 | 1231篇 |
1977年 | 1134篇 |
1976年 | 1010篇 |
1975年 | 833篇 |
1974年 | 842篇 |
1973年 | 799篇 |
1971年 | 652篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
241.
Hafner AW 《Special libraries》1990,81(4):305-308
As a gatekeeper to medical literature and a critical link in the delivery of information to physicians, the librarian's role raises the issue of the librarian's professional liability. The paper suggests several ways in which liability may attach to the librarian or the librarian's employers. Although the librarian's personal risk is negligible, the physician's exposure due to ineffective library work is substantial since the courts have held that a physician must keep abreast of progress in his field. Librarians can also become associated with professional liability actions as part of a case against a physician or hospital through the legal doctrine of vicarious liability. The paper concludes by suggesting several proactive steps for health sciences librarians to pursue to insulate themselves from professional liability and to insulate physicians and institutions from vicarious liability. 相似文献
242.
The current societal and professional context presents a variety of ethical challenges to decision makers. The importance of educational preparation for ethical decision-making and ethical leadership has been addressed in the literature of library and information science (LIS), among other professions. However, it can be quite difficult to measure the impact of professional ethics education on students. This article is based on an evaluation of published original research related to ethics education in disciplines supported by professional education, including education, nursing, allied health, journalism, social work, public health, engineering, and LIS. The study considers data related to research design, methodologies used, populations studied, approaches to measuring impact, levels of impact, and publication in the journal literature. Results indicate more extensive research in education and nursing as compared with other fields, a lack of baseline data gathering for comparison, a reliance on a limited number of data-gathering techniques, and a tendency toward studying alumni over current students 相似文献
243.
244.
如何实现"简化IT"的战略,这是困扰很多企业,尤其是CIO的一个重要问题。本文以日本新生银行的例子来诠释如何彻底简化IT。中世纪哲人William of Ock- ham说过,理论应该尽可能的简单。同样的原则适用于企业IT系统:它们按照尽可能少的标准 相似文献
245.
246.
This study explores faculty deposits in institutional repositories (IR) within selected disciplines and identifies the diverse navigational paths to IR sites from library Web site homepages. The statistical relationship between the development of an IR and the presence of a Web site dedicated to the reform of traditional scholarly communication is also explored. The implications for the development of institutional repositories are highlighted. 相似文献
247.
248.
V. A. Frolova S. K. Khasenova T. Sh. Kubieva O. A. Rog 《Scientific and Technical Information Processing》2008,35(2):104-106
This paper discusses the evaluation of scientific activity with the help of some scientometric indices, in particular, a citation index. The information massif of the bibliographic database of citations to domestic publications of Kazakh authors is statistically described. 相似文献
249.
N. Yu. Berezkina O. N. Sikorskaya 《Scientific and Technical Information Processing》2008,35(6):256-259
The publication activity of Russian and Belarussian scientists, the degree of reflection of their papers in Scopus databases, and the data on the citation of Belarussian authors in the works of other researchers are discussed. 相似文献
250.
A. V. Suvorinov A. V. Anyutin V. S. Sokolovskaya V. I. Fedorov 《Scientific and Technical Information Processing》2008,35(2):63-67
We consider some issues of the development of the national information infrastructure in the field of innovation, including a national system of accounting for the results of scientific and technical activities (RSTA) and a national new-generation research computer network (NNGRCN). The current state of the national system of scientific and technical information and its resources for information support of innovation processes are analyzed. In the context of further development of the Commonwealth of Independent States (CIS), we propose a Conception of scientific and technical support for programs and projects of NIS member-states in the field of innovation, making it possible to incorporate the existing innovation-oriented information resources into a joint distributed integrated information system as well as to create new information resources and technologies. 相似文献