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   4796篇
  免费   60篇
  国内免费   39篇
教育   2159篇
科学研究   369篇
各国文化   3篇
体育   72篇
综合类   157篇
文化理论   8篇
信息传播   2127篇
  2023年   10篇
  2022年   24篇
  2021年   67篇
  2020年   96篇
  2019年   62篇
  2018年   47篇
  2017年   67篇
  2016年   54篇
  2015年   74篇
  2014年   333篇
  2013年   584篇
  2012年   376篇
  2011年   467篇
  2010年   285篇
  2009年   267篇
  2008年   279篇
  2007年   344篇
  2006年   340篇
  2005年   273篇
  2004年   241篇
  2003年   187篇
  2002年   144篇
  2001年   125篇
  2000年   83篇
  1999年   24篇
  1998年   12篇
  1997年   10篇
  1996年   4篇
  1995年   3篇
  1994年   3篇
  1993年   4篇
  1992年   2篇
  1991年   2篇
  1990年   1篇
  1957年   1篇
排序方式: 共有4895条查询结果,搜索用时 15 毫秒
1.
Abstract

Diversity literary awards and other sources were used to create a list of high-quality titles written by and about underrepresented groups. This list was used to assess the diversity and inclusiveness of the library collections of a land-grant university in the Pacific Northwest and compare it to peer institutions. Gaps in the collection and acquisition processes were identified and will be used to improve the processes to increase the number of diverse titles added to the library’s collections.  相似文献   
2.
ABSTRACT

This paper aims to analyse the initiatives undertaken by some immigrant communities residing in Latin America to record their mobilisation around the First World War. After the armistice, European communities in Argentina, Bolivia, Brazil, Chile, Mexico, Paraguay, Peru, Uruguay and other countries gathered detailed information about their activities during the conflict, published as profusely illustrated books of remembrance, offered to their governments as proof of their loyalty. The article intends to establish the peculiar nature of these publications as records of the war effort, and analyse the agents and processes of their elaboration, and their role as commemorative but also as archival documents.  相似文献   
3.
离岸集装箱码头因其岛屿面积限制,难以通过扩建码头内部堆场增加吞吐能力。为解决这个问题,提出一种离岸集装箱码头新装卸工艺模式。新装卸工艺模式是通过在离岸集装箱码头附近的陆域地带建设陆域集疏运堆场,与离岸集装箱码头进行协同装卸作业的模式。陆域集疏运堆场堆存空间分配的目标是满足离岸集装箱码头装卸作业预翻倒要求;单批次输送集装箱的量受到陆岛运输最大通行能力限制。根据上述目标与特点,构建新装卸工艺模式下陆域集疏运堆场堆存空间分配模型,并设计蒙特卡洛树搜索算法进行求解。通过算例分析验证模型的有效性。结果表明该方法能够满足陆域集疏运堆场堆存空间分配需求并提高离岸集装箱码头的吞吐能力。  相似文献   
4.
在浙江私家藏书史上,有关女性藏书的记载不多。但在男性藏书家一统天下的背后,却有不少优秀的女性。本文旨在对这些优秀的女性进行收集和梳理,并对她们在这段辉煌历史中所发挥的作用,进行较深入地分析与探讨。  相似文献   
5.
[目的/意义]面向“十四五”的高校图书馆文献信息资源建设既是整体规划的重要组成部分,又是图书馆的服务保障与基础条件。明确编制过程、调研重点、发展思路与实施措施,对于高校图书馆中长期的文献信息资源建设战略有重要的指导作用和现实意义。[方法/过程]结合文献调研与行业观察和分析,采取案例研究、政策文本解读、比较研究等方法,总结高校图书馆制订文献信息资源建设“十四五”规划的策略与发展思路。[结果/结论]文献信息资源建设的总体思路是赋能存量、做优增量和把握变量,针对新发展阶段高校图书馆的目标与任务,提出具体的实施策略。  相似文献   
6.
The emerging creative practices of digital collections are increasing in prominence thanks to the access to, and appeal of, data visualizations. Interactive data visualizations, such as a map, timeline, chart, graph, or artist’s rendering of data, enable users to pursue their own research interests within a collection and participate in new areas of research. Use of these data visualizations enhances the scope of the collection and enables a modern and diverse thematic collection to emerge. This article considers the question: Does the addition of data visualizations affect how users participate with a research collection? Impacts on collection development, application of user-centered design, and analysis of users’ exploratory strategies are discussed. Examples of data visualizations used in digital humanities projects and digital collections are presented as case studies.  相似文献   
7.
The implementation of digital contact tracing applications around the world to help reduce the spread of the COVID-19 pandemic represents one of the most ambitious uses of massive-scale citizen data ever attempted. There is major divergence among nations, however, between a “privacy-first” approach which protects citizens’ data at the cost of extremely limited access for public health authorities and researchers, and a “data-first” approach which stores large amounts of data which, while of immeasurable value to epidemiologists and other researchers, may significantly intrude upon citizens’ privacy. The lack of a consensus on privacy protection in the contact tracing process creates risks of non-compliance or deliberate obfuscation from citizens who fear revealing private aspects of their lives – a factor greatly exacerbated by recent major scandals over online privacy and the illicit use of citizens’ digital information, which have heightened public consciousness of these issues and created significant new challenges for any collection of large-scale public data. While digital contact tracing for COVID-19 remains in its infancy, the lack of consensus around best practices for its implementation and for reassuring citizens of the protection of their privacy may already have impeded its capacity to contribute to the pandemic response.  相似文献   
8.
This study investigated the effect of including explicit nature of science (NOS) content in read-alouds of elementary science trade books on the teaching and learning of NOS. We focused on three aspects of NOS: the creative, the empirical, and the inferential NOS. The trade books were read aloud by teachers in three hierarchical levels: Level I served as a control and consisted of a trade book that remained unmodified, Level II consisted of a trade book that had been modified to include explicit references to NOS, and Level III consisted of a modified trade book accompanied by educative curriculum materials that were aimed at improving the teachers' views of NOS as well as supporting teaching about NOS. We used the Views of Nature of Science Questionnaire-form CE (VNOS-CE) preintervention and postintervention to determine changes in teachers' views of NOS and interviews preintervention and postintervention to determine changes in students' views. Audio recordings of read-alouds were used to determine changes in teaching practice, including the frequency and the quality (i.e., naïve or informed) of the NOS references in the discussions. Interviews were used to determine teachers' perceptions of the modified trade books and educative curriculum materials. We found that both teachers and students developed more informed views of the targeted NOS aspects after the intervention and that teachers addressed NOS more often, and in a more informed manner, when they had trade books that explicitly supported NOS instruction and educative curriculum materials that supported their learning about NOS. Furthermore, they perceived the intervention materials favorably. Teachers' views and practices were able to change in tandem because of the intervention materials that supported explicit NOS instruction. We highlight the need for more widespread development of similar educative curriculum materials.  相似文献   
9.
Abstract

Academic library collections have been built and shaped by a focus on dominant voices and perspectives. In order for collections to reflect the value librarianship places on diversity as well as represent multiple perspectives and serve users of diverse backgrounds and identities, collections need to be assessed for coverage of content related to diversity. This article discusses the challenges inherent in engaging in such an assessment, discusses collection assessment methods, and describes an analysis performed on the Penn State University Libraries collections focused on lesbian, gay, bisexual, transgender, and queer content.  相似文献   
10.
中国漆艺历史悠久,源远流长,是世界漆艺的源头,对世界漆艺产生了深远的影响。她有着“气韵生动的线”、“精彩绝艳的色”,是“宇宙生命的象征”和“上古东方的现代派绘画”;有着极强的防水、防蛀、防腐和装饰的实用价值。她品类繁多、用途广泛,具有极高的收藏价值。  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