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   533篇
  免费   4篇
  国内免费   1篇
教育   194篇
科学研究   121篇
各国文化   3篇
体育   4篇
综合类   28篇
信息传播   188篇
  2023年   1篇
  2022年   2篇
  2020年   2篇
  2019年   3篇
  2018年   7篇
  2017年   12篇
  2016年   9篇
  2015年   3篇
  2014年   17篇
  2013年   63篇
  2012年   47篇
  2011年   145篇
  2010年   17篇
  2009年   21篇
  2008年   14篇
  2007年   15篇
  2006年   35篇
  2005年   6篇
  2004年   10篇
  2003年   3篇
  2002年   9篇
  2001年   6篇
  2000年   6篇
  1999年   34篇
  1998年   5篇
  1997年   3篇
  1996年   7篇
  1995年   3篇
  1994年   5篇
  1993年   3篇
  1992年   4篇
  1991年   4篇
  1990年   3篇
  1989年   3篇
  1988年   2篇
  1987年   2篇
  1986年   3篇
  1983年   1篇
  1981年   1篇
  1979年   1篇
  1978年   1篇
排序方式: 共有538条查询结果,搜索用时 15 毫秒
21.
为了满足多元化的公共教育需求,解决公共教育产品短缺和公共教育服务不到位等问题,有必要从治理的视角重新思考政府在公共教育产品与服务中的角色和作用,运用治理的理念和精神变革公共教育服务体制,实现公共教育服务供给主体的多元化、公共教育治理权力的多中心化和公共教育服务结构的多样化。  相似文献   
22.
23.
The purpose of this study was to investigate variables related to the professional identity and career path of school-based vs. non-school-based doctoral-level school psychologists. Two hundred seventy-three psychologists trained as school psychologists completed a questionnaire developed to investigate their training, experience, and perceptions. Respondents differed little by employment setting (school-based vs. non-school-based) in reports of their training or experiences. However, significant differences were found among groups in two areas: ratings of relative importance of characteristics of employment setting, and perceived identity as a school psychologist.  相似文献   
24.
25.
26.
In recent years, there has been rapid growth in the volume of research output on the topic of e-government. To understand this research better, we used content analysis of eighty-four papers in e-government-specific research outlets (two journals and one conference series). Our analytical focus took in five main aspects: perspectives on the impacts of e-government, research philosophy, use of theory, methodology and method, and practical recommendations. Normative evaluation identified some positive features, such as recognition of contextual factors beyond technology, and a diversity of referent domains and ideas. Alongside this, though, research draws mainly from a weak or confused positivism and is dominated by over-optimistic, a-theoretical work that has done little to accumulate either knowledge or practical guidance for e-government. Worse, there is a lack of clarity and lack of rigor about research methods alongside poor treatment of generalization. We suggest ways of strengthening e-government research but also draw out some deeper issues, such as the role of research philosophy and theory, and the institutional factors – particularly pressures of competition and time – that may constrain development of e-government as a research field.  相似文献   
27.
The role and continued relevance of state telecommunications regulators have been challenged by the development of competition, the introduction of new technologies, and the increasing dominance of federal authority. An important role that state utility commissions can play in the current telecommunications environment is to provide consumer education and information about consumer protection, competition, and universal service. Commissions can use their Web sites as effective tools in educating and informing consumers. This study analyzes the consumer-related telecommunications information included on the Web sites of the commissions in the 50 states and the District of Columbia to determine whether, and how well, state commissions are using their Web sites to educate and inform.  相似文献   
28.
29.
The Franklin Institute, Philadelphia, Pennsylvania, awarded the 2001 Benjamin Franklin Medal in Earth Science to Rob Van der Voo for his outstanding contributions to the field of paleomagnetism and his reconstruction of ancient continental positions that have lead to a better understanding of plate tectonic processes for the past billion years of Earth history.  相似文献   
30.
A transaction log analysis of the Nanyang Technological University (NTU) OPAC was conducted to identify query and search failure patterns with the goal of identifying areas of improvement for the system. One semester’s worth of OPAC transaction logs were obtained and from these, 641,991 queries were extracted and used for this work. Issues investigated included query length, frequency and type of search options and Boolean operators used as well as their relationships with search failure. Among other findings, results indicate that a majority of the queries were simple, with short query lengths and a low usage of Boolean operators. Failure analysis revealed that on average, users had an almost equal chance of obtaining no records or at least one record to a submitted query. We propose enhancements and suggest future areas of work to improve the users’ search experience with the NTU OPAC.  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