全文获取类型
收费全文 | 2141篇 |
免费 | 16篇 |
国内免费 | 1篇 |
专业分类
教育 | 1522篇 |
科学研究 | 229篇 |
各国文化 | 30篇 |
体育 | 95篇 |
综合类 | 1篇 |
文化理论 | 22篇 |
信息传播 | 259篇 |
出版年
2022年 | 12篇 |
2021年 | 20篇 |
2020年 | 17篇 |
2019年 | 30篇 |
2018年 | 46篇 |
2017年 | 56篇 |
2016年 | 44篇 |
2015年 | 27篇 |
2014年 | 50篇 |
2013年 | 545篇 |
2012年 | 45篇 |
2011年 | 40篇 |
2010年 | 37篇 |
2009年 | 37篇 |
2008年 | 48篇 |
2007年 | 53篇 |
2006年 | 40篇 |
2005年 | 27篇 |
2004年 | 27篇 |
2003年 | 32篇 |
2002年 | 49篇 |
2001年 | 20篇 |
2000年 | 23篇 |
1999年 | 38篇 |
1998年 | 22篇 |
1997年 | 26篇 |
1996年 | 27篇 |
1995年 | 21篇 |
1994年 | 15篇 |
1993年 | 19篇 |
1992年 | 31篇 |
1991年 | 15篇 |
1990年 | 24篇 |
1989年 | 20篇 |
1988年 | 15篇 |
1987年 | 20篇 |
1986年 | 21篇 |
1985年 | 26篇 |
1983年 | 12篇 |
1982年 | 21篇 |
1981年 | 18篇 |
1980年 | 25篇 |
1979年 | 25篇 |
1978年 | 27篇 |
1976年 | 20篇 |
1975年 | 15篇 |
1974年 | 18篇 |
1973年 | 22篇 |
1971年 | 16篇 |
1970年 | 12篇 |
排序方式: 共有2158条查询结果,搜索用时 15 毫秒
961.
962.
963.
OBJECTIVE: To evaluate how well a group of recently trained pediatric chief residents could label anatomic structures on two different photographs of female prepubertal genitalia. Additionally, the study sought to explore aspects of pediatric training in sexual abuse and clinical practice issues surrounding the routine genital examination. METHOD: A 38-item questionnaire was mailed to pediatric chief residents at all of the officially listed pediatric residency-training programs in the continental US. Comparisons were made between this study and the responses to two previous surveys, which asked a more heterogeneous group of physicians to label one of the photographs used in the study. The second photograph was added because of its improved clarity of each anatomic structure when compared to the first photograph used in the previous studies. The study also asked about clinical practice issues surrounding the prepubertal genital examination. RESULTS: An overall response rate of 73% was achieved and analysis was done on 139 respondents. One-half of chief residents thought that their training during residency on sexual abuse was inadequate for practice. Sixty-four percent of chief residents correctly labeled the hymen on the photograph used in the previous studies, which was not significantly different from the 62% and 59% of physicians who correctly labeled the hymen in the previous surveys. In the second photograph, which more clearly displayed the various anatomic structures, 71% correctly labeled the hymen. CONCLUSION: Pediatric chief residents reported variable amounts of training on issues pertaining to child sexual abuse during residency, think that this time was inadequate, and, while doing slightly better than a more diverse group of previously studied physicians, did not achieve 100% accuracy in identifying basic genital structures correctly on two different photographs. 相似文献
964.
Erin Edwards Andy Walker Kathleen Bergeson John Louviere Kris Robinson Joseph Higgins Charles Harris 《TechTrends》2001,45(1):29-31
Conclusion The development of templates such as Genetics in Practice is feasible and presents the potential to be a powerful training
tool for online instruction. It is important to keep in mind, however, that use of the tool does not ensure quality case-study
development. 相似文献
965.
966.
Although a new institution, the University of Namibia is facing the same problems of curriculum, funding, and access which hinder academic effectiveness elsewhere. Research on the future prospects for the university was facilitated by the senior authors prior involvement in the effort to construct a modern Namibia in the post-colonial period. Such involvement included several advisory assignments relating to the emerging university. This shared experience provided unusual access for in-depth and confidential interviews with national and university decision-makers. Based on these discussions and previous research, the authors outline a process for facilitating the government and academic leadership so crucial to evolving a responsive university. They discern that success for higher education in the Namibian context will require merging the roles of the University and the Polytechnic and transcending imported models to develop an institution responsive to Namibian needs. 相似文献
967.
Supplemental articles and supplementary treaties were used as tools to modify American Indian treaties. In general, supplemental articles were adjustments to the parameters of a treaty, frequently made as quickly as the same – or the next – day of negotiations, whereas the task of a supplementary treaty was to affect the conditions created in a previous treaty(s).As the law of the land, these materials have been referenced in the opinions of the federal, state, and territorial court systems. This article identifies those 80 documents – a combination of 39 initial treaties and their 41 supplements – cited in the opinions of 101 cases between 1831 and 2000 that bind together these instruments, their modifications, and their application within these various venues. 相似文献
968.
Information policy research is a critical tool in the arsenal of library and information science researchers. As developments occur in information access, use, technology, and management, information policies require more attention and research. The article describes the nature of government information policy and policy research, characteristics of policy research, and examples of research methods and approaches that can be used. The differences between textbook-based policy research and how policy research might be implemented in action are also discussed, as are the inter-connectedness of information policies and ways to describe impacts of information policies. The article recommends that researchers and professionals give greater education, training, and professional association attention to using policy research on a day-to-day basis. 相似文献
969.
This article presents an overview of the methods, findings, and the general implications of the 2007 Public Libraries and the Internet study. This annual study has chronicled public libraries' provision of Internet access to patrons and a range of related issues since the early 1990s. The 2007 study focused on the provision and maintenance of Internet access and services, infrastructure issues, community impacts of the technology, training, library technology funding, and e-government roles of public libraries. This article details these findings, exploring how the 2007 data compare to previous studies. It also considers the implications of these comparisons in terms of the levels of service that libraries are able to provide, the challenges that libraries face in providing these services, and the ways in which communities and governments rely on public libraries to guarantee public Internet access. 相似文献
970.
Abstract Many activities from the infant class curriculum may be enhanced by realising them in the interactive context of a computer environment. This raises the question of whether young children can make choices among such activities that would reflect an awareness of their difficulty and a motivation to master them. In this research, infant class pupils were provided with software that offered unconstrained opportunities to select a range of related activities and the level of difficulty at which they would be tackled. Choices and response times were automatically recorded over a period of three weeks. These choices remained stable throughout that time and were biased towards the easiest options. There was some improvement in performance although little evidence of choice strategies that could be effective in driving such improvement. There was no evidence of sex differences in frequency of using the computer. 相似文献