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   4676篇
  免费   55篇
  国内免费   95篇
教育   2600篇
科学研究   639篇
各国文化   143篇
体育   300篇
综合类   170篇
文化理论   12篇
信息传播   962篇
  2024年   1篇
  2023年   59篇
  2022年   60篇
  2021年   128篇
  2020年   207篇
  2019年   194篇
  2018年   180篇
  2017年   179篇
  2016年   162篇
  2015年   123篇
  2014年   310篇
  2013年   635篇
  2012年   349篇
  2011年   346篇
  2010年   250篇
  2009年   269篇
  2008年   271篇
  2007年   249篇
  2006年   215篇
  2005年   150篇
  2004年   118篇
  2003年   105篇
  2002年   74篇
  2001年   60篇
  2000年   42篇
  1999年   15篇
  1998年   10篇
  1997年   15篇
  1996年   9篇
  1995年   2篇
  1994年   2篇
  1993年   3篇
  1992年   6篇
  1991年   3篇
  1989年   4篇
  1985年   5篇
  1984年   3篇
  1983年   3篇
  1982年   6篇
  1981年   1篇
  1979年   1篇
  1978年   1篇
  1976年   1篇
排序方式: 共有4826条查询结果,搜索用时 15 毫秒
31.
Anonymous personalization in collaborative web search   总被引:2,自引:0,他引:2  
We present an innovative approach to Web search, called collaborative search, that seeks to cope with the type of vague queries that are commonplace in Web search. We do this by leveraging the search behaviour of previous searchers to personalize future result-lists according to the implied preferences of a community of like-minded individuals. This technique is implemented in the I-SPY meta-search engine and we present the results of a live-user trial which indicates that I-SPY can offer improved search performance when compared to a benchmark search engine, across a variety of performance metrics. In addition, I-SPY achieves its level of personalization while preserving the anonymity of individual users, and we argue that this offers unique privacy benefits compared to alternative approaches to personalization.  相似文献   
32.
不同的电子政务系统需要特定的决策支持系统,本文以大社保领域为例,介绍了电子政务系统引入决策支持技术的必要性,详细讨论了社会保障决策支持系统的内容和目标,同时还阐述了决策支持技术在大社保领域的应用研究中需要解决的关键性问题。本文从实际应用的角度出发,给出了一个较为完整的社会保障的决策支持系统的解决方案。  相似文献   
33.
对开展社会科学成果查新研究的探讨   总被引:4,自引:0,他引:4  
本文认为,国内现有的自然科学成果查新机构无法适应社会科学成果查新需要,建立全国性社科成果查新体系势在必行。为此,需要开展相关的社会科学成果查新研究。本文对开展社会科学成果查新研究的背景、意义、内容和方法进行了探讨。  相似文献   
34.
大学生心理问题阅读疗法研究   总被引:62,自引:0,他引:62  
阅读疗法是集预防、治疗和发展健康心理于一体的心理治疗方法,对解决大学生常有的心理困扰是有效的。参考文献6。  相似文献   
35.
This research analyzed a dataset of academic libraries' posts on Facebook. It applied a text and data analytics approach to a dataset collected from the Facebook posts of academic libraries at the top 100 English-speaking universities, as listed by the 2014 Shanghai World University Rankings. The dataset is from a two-year posting history of 18,333 unique posts, 113,621 likes, and 3401 comments. Less than a quarter of the libraries had more than 2000 post-related likes, and only seven received more than 100 comments on their postings. Content analysis identified the most prevalent single word (unigrams), bigrams (two-word sequences), and trigrams (three-word sequences) in high and low engagement content. Semantic analysis identified the semantic categories for posts with high and low engagement. The findings can assist academic libraries in their social media strategies for engagement, marketing, and visibility.  相似文献   
36.
This study is a social media analysis on the use of Twitter at Historically Black Colleges and University (HBCU) libraries. While information science researchers have begun examining how libraries use social media, the vast majority of these studies are situated at large flagship research-intensive universities. Additionally, there currently exist deficiencies in research on social media deployment at HBCU libraries. We leverage, the IBM Watson's analytic engine, to systemically examine over 23,000, tweets over an eighteen-month period, around a set of objective measures including propagation of retweets and sentiment to assess follower engagement. The analysis found little evidence of follower engagement with library generated content. However, we observed a substantial volume of library tweets coalesced around institutional boosterism, rather than library related phenomena. This non-library related content represented the vast majority of retweets, but paradoxically was propagated by non-followers. Additionally, tweets relating to institutional boosterism produced the most positive sentiment within the data.  相似文献   
37.
ABSTRACT

Social media is a powerful tool for building an online presence, but it asks a lot. While it affords plentiful opportunities for professional development and networking, building a professional brand in an online space is not without its drawbacks and risks. By working from a set of actionable principles and benchmarks, users can minimize frustrations and setbacks to build a useful professional presence, all while imbuing the web with the tenets of good information stewardship.  相似文献   
38.
This article explores how the library-student liaison program at Eastern Washington University (EWU) Libraries has evolved into an opportunity for students to develop leadership skills. Originally designed to foster better communication between the EWU Libraries and students enrolled at the university, we recognized that the process of achieving established goals for the program provided a vehicle for students' leadership-skill development. To facilitate the leadership process, librarians employed the Social Change Model. Designed specifically for college students, this model engages the student to develop individual capacities to strengthen group activities that foster positive changes in the community and society.  相似文献   
39.
Neurasthenia (shenjing shuairuo) and depressive disorder are medical issues that have given rise to disputes in China for more than 20 years. Since the 1980s, the once ubiquitous diagnosis of neurasthenia in China was rapidly substituted by depressive disorder in the clinical context. Globally, the metamorphosis from neurasthenia to depressive disorder heralded the triumph of scientific rationality, which identifies neurasthenia as a categorical fallacy. In China, however, neurasthenia retained social and cultural significance; thus, it has become a contestable discourse in relation to depressive disorder. By examining the health reporting of both discourses over a decade, this study explicated how neurasthenia and depressive disorder were represented in a popular health newspaper in China. The content analysis showed that neurasthenia is a more culturally and everyday embedded discourse closely associated with Chinese medicine and laymen’s discourse, while depressive disorder is more associated with Western medicine and the professional discourse. The differentiation of two sets of medical discourse evinces that despite the ostensibly prevailing scientific rationality in media health reporting, cultural rationality is deeply embedded in communicating mental health issues with the lay public. It further suggests the significance of investigating the social and cultural expression of mental illnesses in China.  相似文献   
40.
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