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   8352篇
  免费   108篇
  国内免费   226篇
教育   5034篇
科学研究   752篇
各国文化   128篇
体育   570篇
综合类   336篇
文化理论   4篇
信息传播   1862篇
  2023年   21篇
  2022年   88篇
  2021年   135篇
  2020年   192篇
  2019年   192篇
  2018年   180篇
  2017年   91篇
  2016年   94篇
  2015年   179篇
  2014年   613篇
  2013年   754篇
  2012年   832篇
  2011年   892篇
  2010年   571篇
  2009年   459篇
  2008年   567篇
  2007年   606篇
  2006年   517篇
  2005年   384篇
  2004年   305篇
  2003年   236篇
  2002年   183篇
  2001年   124篇
  2000年   55篇
  1999年   26篇
  1998年   16篇
  1997年   14篇
  1996年   4篇
  1995年   6篇
  1994年   3篇
  1993年   1篇
  1992年   2篇
  1988年   1篇
  1985年   51篇
  1984年   46篇
  1983年   41篇
  1982年   41篇
  1981年   33篇
  1980年   10篇
  1979年   20篇
  1978年   36篇
  1977年   32篇
  1976年   32篇
  1974年   1篇
排序方式: 共有8686条查询结果,搜索用时 31 毫秒
991.
Policy makers take initiatives to stimulate knowledge ecosystems in technology hotspots. It is implicitly assumed that these ecosystems will lead to value networks through which the participating companies can realize a competitive advantage. Value networks refer to business ecosystems where the value proposition is offered by a group of companies which are mutually complementary. The strategy literature suggests that business ecosystems lead to competitive advantages for each of the partners in the ecosystem. Based on a unique hand-collected database of 138 innovative start-ups in the region of Flanders, we analyze the knowledge and business ecosystem and the financial support network. We find that the knowledge ecosystem is well structured and concentrated around a number of central actors while the business ecosystem is almost non-existent at the local level. Further, we find that the financial support network is almost 100% publicly backed and fails to bridge the knowledge and business ecosystem. The implications for policy makers who tend to focus on the development of local ecosystems are discussed.  相似文献   
992.
This paper presents a model to analyse the different outcomes generated by the application of Task-Technology Fit (TTF) theory to economic and financial information management in university departments. This model extends that proposed by Goodhue (1995), in two ways: (i) a key role is played by the manager in designing the technology and in performing the task in question. Both of these aspects can be modified, depending on the evaluation made of a series of characteristics (or dimensions) inherent to the model. (ii) The free dissemination of the source code of the application not only allows the transfer of knowledge, but also creates virtual communities which, through collaborative work and the exchange of experiences, can achieve a better fit of the technology to the task at hand. This model has been introduced in several departments at the University of Granada (Spain), and evaluated in terms of the results obtained at both individual and group levels. This evaluation was conducted by means of in-depth interviews with departmental managers.  相似文献   
993.
肖恒  胡康林 《情报探索》2014,(9):128-131
以四川大学10个院系的资料室为对象,调查分析四川大学院系资料室概况。针对各院系资料室在管理、资源建设、服务和人才队伍等方面存在的问题,从发展思路、管理体制、资源建设、信息技术和人才队伍等方面,提出院系图书资料室的建设与发展对策。  相似文献   
994.
随着高校的不断扩招,伴随着高校的教育也不断的进行改革,尤其是课程改革更是不断的深入。高校体育课的改革也首当其冲,牵动着体育老师们的那根敏感的神经,我们都知道,体育课是一门公共基础必修课,是高校教育组成的一部分。体育课在高等教育教学中起着越来越大的作用,目前高校中开设的体育专选课在高校里也很普及。但是从整体来看,高校开设体育专选课还有很多令人不满意的地方,以广西财经学院为例,就体育专选课出现的诸多问题进行一下梳理,以此为体育专选课的进一步改革提供一些必要的依据和建议。  相似文献   
995.
This article examines public librarians' experiences with attempted censorship, including their dismay, anger, and disappointment with fellow librarians and their professional organizations, which those under attack found apathetic in safeguarding user rights and protecting their jobs as library professionals. Some of these librarians became the activists who campaigned for the creation of the American Library Association's (ALA) legal defense machinery, along with other primarily young progressive librarians, who pushed forward their own agenda. This study highlights these public librarians' struggles, which made the Freedom to Read Foundation (FTRF) and ALA leading professional organizations in championing intellectual freedom. The study focuses on cases that shaped ALA's policy that led to the establishment of a defense mechanism for librarians in the late 1960s and 1970s. It also examines the extent to which ALA upheld the organization's professional credo and its members' rights.  相似文献   
996.
Created by the staff of the Wyoming State Library, this online “flip list” of 101 items is an introductory checklist of fiscal and policy oversight responsibilities and communication efforts that all trustees of libraries ought to know and carry around in their heads as they function as governance spokespersons for their various systems.  相似文献   
997.
This study was based on a communication‐oriented perspective of corporal punishment of children. The perspective posits that physically aggressive influence tactics would be associated with aggressive communication and a set of communication outcomes. The perceptions of 74 father‐son dyads were solicited to test these relationships. Results indicated that when there was lower argumentativeness and higher verbal aggressiveness in father‐son communication there was more corporal punishment as an influence tactic and that fathers and sons perceived the relationship as less favorable in terms of influence success, communication competence, affirming style, and credibility.  相似文献   
998.
Issues central to the continuing debate about the future of the reference desk are explored here by two seasoned librarians. A point-counterpoint format allows the two debaters, “fresh” from their Columbia University Reference Symposium 2007 public debate, to continue to engage in argument and discussion. Readers are invited to consider the affirmative and negative sides of the various issues as advocated by the authors.  相似文献   
999.
To address the situation of its nearly full storage facility, the Purdue University Libraries developed guidelines for the deselection of very low–use serial titles and conducted a pilot project to identify material for withdrawal. The library school intern hired to conduct the pilot used WorldCat Collection Analysis to create subject lists of titles to be considered for withdrawal. These lists also contained value-added information about how many benchmark institutions owned and duplicated the local holdings of each title. Working with subject specialists, the intern developed criteria to guide a major serials deselection project. After the success of the internship in six subject areas, the libraries funded a longer-term position to complete the deselection project.  相似文献   
1000.
《资料收集管理》2013,38(1-2):45-53
No abstract available for this article.  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