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   5457篇
  免费   46篇
  国内免费   132篇
教育   3046篇
科学研究   1200篇
各国文化   49篇
体育   808篇
综合类   109篇
文化理论   19篇
信息传播   404篇
  2024年   31篇
  2023年   58篇
  2022年   73篇
  2020年   25篇
  2018年   29篇
  2017年   40篇
  2016年   48篇
  2015年   83篇
  2014年   363篇
  2013年   119篇
  2012年   169篇
  2011年   206篇
  2010年   133篇
  2009年   144篇
  2008年   221篇
  2007年   447篇
  2006年   298篇
  2005年   289篇
  2004年   262篇
  2003年   276篇
  2002年   261篇
  2001年   139篇
  2000年   125篇
  1999年   73篇
  1998年   33篇
  1997年   44篇
  1996年   46篇
  1995年   59篇
  1994年   44篇
  1993年   52篇
  1992年   61篇
  1991年   59篇
  1990年   76篇
  1989年   63篇
  1988年   87篇
  1987年   80篇
  1986年   94篇
  1985年   94篇
  1984年   86篇
  1983年   73篇
  1982年   73篇
  1981年   58篇
  1980年   35篇
  1960年   32篇
  1959年   45篇
  1958年   43篇
  1957年   32篇
  1956年   60篇
  1955年   64篇
  1953年   40篇
排序方式: 共有5635条查询结果,搜索用时 15 毫秒
141.
AIMS AND OBJECTIVES: The study evaluates the Community Outreach Library Service at Wirral Hospital National Health Service Trust (WHNT). It considers the information seeking behaviour and information needs of primary care staff, and service effectiveness in meeting those needs. METHODS: A literature review established the current context and areas of best practice. The investigative case study used postal questionnaires to 250 primary care staff and an interview with the Community Outreach Librarian. FINDINGS: Themes emerged from the literature regarding information seeking behaviour, information needs, and meeting user needs through effective service delivery. Outreach services have value in terms of improving information skills and providing services at point of need. Time is a major constraint for both users and service providers. CONCLUSIONS: Investment is needed from appropriate funding sources to support the provision and marketing of outreach library services. Librarians benefit from sharing best practice. The continued evaluation of outreach library services is recommended.  相似文献   
142.
Objectives: To explore how the library service expectations and perceptions of users might differ across health‐related libraries as against major research libraries not operating in a medical context; to determine whether users of medical libraries demand better library service quality, because the inability of users to access needed literature promptly may lead to a patient who cannot be properly diagnosed, or a diagnosis that cannot be properly treated. Methodology: We compared LibQUAL+® total and subscale scores across three groups of US, Canadian and British libraries for this purpose. Results: Anticipated differences in expectations for health as other library settings did not emerge. Conclusions: The expectations and perceptions are similar across different types of health science library settings, hospital and academic, and across other general research libraries.  相似文献   
143.
1调查结果概要 ·8%的美国人是参与性网络及移动设备的深度使用者。 ·另外23%的美国人是务实技术的接受者——他们使用高科技工具紧跟社会网络并有效率的工作。  相似文献   
144.
现代社会,很多人对"理财"趋之若鹜,却认识不到合理分配时间的重要性。君不见成天忙得焦头烂额者,比比皆是!我乃一名职业时间分配师。专门提供最佳的时间分配方案。谁聘请我,谁就将拥有活力充沛的身体、直线飙升的事业、游刃有余的生活!  相似文献   
145.
Fingerspelling is an integral part of American Sign Language (ASL) and it is also an important aspect of becoming bilingual in English and ASL. Even though fingerspelling is based on English orthography, the development of fingerspelling does not parallel the development of reading in hearing children. Research reveals that deaf children may initially treat fingerspelled words as lexical items rather than a series of letters that represent English orthography and only later begin to learn to link handshapes to English graphemes. The purpose of this study is to determine whether a training method that uses fingerspelling and phonological patterns that resemble those found in lexicalized fingerspelling to teach deaf students unknown English vocabulary would increase their ability to learn the fingerspelled and orthographic version of a word. There were 21 deaf students (aged 4-14 years) who participated. Results show that students were better able to recognize and write the printed English word as well as fingerspell the word, when training incorporated fingerspelling that is more lexicalized. The discussion focuses on the degree to which fingerspelling can serve as a visual phonological bridge as an aid to decode English print.  相似文献   
146.
A consumer advocate, two childbirth educators, and a certified nurse-midwife each provide commentary on the effectiveness of and potential uses for the Evidence Basis for the Ten Steps of Mother-Friendly Care.  相似文献   
147.
148.
A summer program was created for undergraduates and graduate students that teaches bioinformatics concepts, offers skills in professional development, and provides research opportunities in academic and industrial institutions. We estimate that 34 of 38 graduates (89%) are in a career trajectory that will use bioinformatics. Evidence from open-ended research mentor and student survey responses, student exit interview responses, and research mentor exit interview/survey responses identified skills and knowledge from the fields of computer science, biology, and mathematics that are critical for students considering bioinformatics research. Programming knowledge and general computer skills were essential to success on bioinformatics research projects. General mathematics skills obtained through current undergraduate natural sciences programs were adequate for the research projects, although knowledge of probability and statistics should be strengthened. Biology knowledge obtained through the didactic phase of the program and prior undergraduate education was adequate, but advanced or specific knowledge could help students progress on research projects. The curriculum and assessment instruments developed for this program are available for adoption by other bioinformatics programs at http://www.calstatela.edu/SoCalBSI.  相似文献   
149.
Theory-of-mind (ToM) abilities were studied in 176 deaf children aged 3 years 11 months to 8 years 3 months who use either American Sign Language (ASL) or oral English, with hearing parents or deaf parents. A battery of tasks tapping understanding of false belief and knowledge state and language skills, ASL or English, was given to each child. There was a significant delay on ToM tasks in deaf children of hearing parents, who typically demonstrate language delays, regardless of whether they used spoken English or ASL. In contrast, deaf children from deaf families performed identically to same-aged hearing controls (N=42). Both vocabulary and understanding syntactic complements were significant independent predictors of success on verbal and low-verbal ToM tasks.  相似文献   
150.
This article examines how 31 triads of 6- to 10-year-old children from 3 cultural backgrounds organized their interactions while folding Origami figures. Triads of children whose families had immigrated to the United States from indigenous heritage regions of México (and whose mothers averaged only 7 grades of schooling) coordinated more often as an ensemble, whereas triads of European heritage U.S. children whose mothers had extensive schooling more often engaged dyadically or individually. When the European heritage children did engage as an ensemble, this often involved chatting rather than nonverbal conversation regarding folding, which was more common among the Mexican heritage children. Mexican heritage U.S. triads whose mothers had extensive schooling showed an intermediate pattern or resembled the European heritage children.  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