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   1179篇
  免费   50篇
教育   942篇
科学研究   33篇
各国文化   17篇
体育   62篇
综合类   1篇
文化理论   8篇
信息传播   166篇
  2023年   12篇
  2022年   15篇
  2021年   34篇
  2020年   53篇
  2019年   70篇
  2018年   86篇
  2017年   86篇
  2016年   72篇
  2015年   38篇
  2014年   68篇
  2013年   257篇
  2012年   49篇
  2011年   43篇
  2010年   41篇
  2009年   33篇
  2008年   28篇
  2007年   35篇
  2006年   24篇
  2005年   26篇
  2004年   21篇
  2003年   3篇
  2002年   30篇
  2001年   10篇
  2000年   10篇
  1999年   6篇
  1998年   9篇
  1997年   10篇
  1996年   9篇
  1995年   7篇
  1994年   4篇
  1993年   3篇
  1992年   6篇
  1991年   2篇
  1990年   6篇
  1989年   3篇
  1988年   1篇
  1987年   3篇
  1986年   1篇
  1985年   2篇
  1984年   4篇
  1983年   1篇
  1982年   2篇
  1981年   1篇
  1980年   1篇
  1977年   2篇
  1976年   1篇
  1974年   1篇
排序方式: 共有1229条查询结果,搜索用时 15 毫秒
101.
This paper reports on findings derived as part of a two-year project funded by the European Union's Daphne III scheme, involving collaboration between seven partner organisations across six European countries. The project involved an evaluation, using questionnaires and focus groups, of domestic abuse prevention education programmes delivered in schools in the UK, France and Spain. This paper presents the findings from the UK focus group discussions, conducted with young people aged 10–11 years, and 13–14 years to explore their opinions about the intervention delivered in their school. The focus groups revealed the following challenges for service providers in this area: young people can misunderstand issues related to domestic abuse, especially the role of power and control within relationships; there is a tension between educators giving young people free expression to share their opinions and challenging sexism and other prejudices; and boys can become disengaged with gender-based interventions. These issues point towards three key considerations when implementing a domestic abuse prevention education intervention: programme content (the what); the teaching methods used (the how); and whether teachers or external organisations should deliver the programme (the who).  相似文献   
102.
Discrimination reversal learning has been used as a measure of species flexibility in dealing with changes in reinforcement contingency. In the simultaneous-discrimination, midsession-reversal task, one stimulus (S1) is correct for the first half of the session, and the other stimulus (S2) is correct for the second half. After training, pigeons show a curious pattern of choices: They begin to respond to S2 well before the reversal point (i.e., they make anticipatory errors), and they continue to respond to S1 well after the reversal (i.e., they make perseverative errors). That is, pigeons appear to be using the passage of time or the number of trials into the session as a cue to reverse, and are less sensitive to the feedback at the point of reversal. To determine whether the nature of the discrimination or a failure of memory for the stimulus chosen on the preceding trial contributed to the pigeons’ less-than-optimal performance, we manipulated the nature of the discrimination (spatial or visual) and the duration of the intertrial interval (5.0 or 1.5 s), in order to determine the conditions under which pigeons would show efficient reversal learning. The major finding was that only when the discrimination was spatial and the intertrial interval was short did the pigeons perform optimally.  相似文献   
103.
Despite the impact of genetics on daily life, biology undergraduates understand some key genetics concepts poorly. One concept requiring attention is dominance, which many students understand as a fixed property of an allele or trait and regularly conflate with frequency in a population or selective advantage. We present the Dominance Concept Inventory (DCI), an instrument to gather data on selected alternative conceptions about dominance. During development of the 16-item test, we used expert surveys (n = 12), student interviews (n = 42), and field tests (n = 1763) from introductory and advanced biology undergraduates at public and private, majority- and minority-serving, 2- and 4-yr institutions in the United States. In the final field test across all subject populations (n = 709), item difficulty ranged from 0.08 to 0.84 (0.51 ± 0.049 SEM), while item discrimination ranged from 0.11 to 0.82 (0.50 ± 0.048 SEM). Internal reliability (Cronbach''s alpha) was 0.77, while test–retest reliability values were 0.74 (product moment correlation) and 0.77 (intraclass correlation). The prevalence of alternative conceptions in the field tests shows that introductory and advanced students retain confusion about dominance after instruction. All measures support the DCI as a useful instrument for measuring undergraduate biology student understanding and alternative conceptions about dominance.  相似文献   
104.
105.
How do public libraries develop their collections of high-demand materials for the “I want it now” generation? Ten public libraries’ holdings of fiction and nonfiction bestseller titles were observed over a four-week period. The number of copies rose fairly consistently, with the five fiction titles having roughly about twice the number of copies as the five nonfiction titles. The ratio of holds to copies averaged 2.7:1 and ranged from 0.8:1 to 6.5:1. Demand for e-books was consistently higher than the number of copies available, averaging more than 4:1 across all libraries.  相似文献   
106.
107.
The Blackwell Companion and Blackwell Guide to the philosophy of education, edited respectively by Randall Curren and by Nigel Blake, Paul Smeyers, Richard Smith and Paul Standish, are potentially field-defining volumes. The present essay moves back and forth between the two books to assess the overall impression they provide of the 'state of the art'. Whilst both texts can be criticised for failing to engage sufficiently with non-philosophical work on education, these are otherwise estimable volumes, containing many fine essays that can be read with profit.  相似文献   
108.
The aims of the EVINCE research projectincluded examination of the impact of information on the clinical knowledge and practice ofnurses, midwives and health visitors. EVINCE (Establishing the Value of Information to NursingContinuing Education) was funded by the British Library R&D Department for 1 year, from 1November 1995 to 31 October 1996. The methods employed (based on those used in the Valueproject) included a critical incident type study to establish patterns of information need and useamong a random sample of nursing professionals. The nature of the impact of informationobtained on present and future competencies was assessed from a survey of the searches andrequests presented to library and information services. Nurses, midwives and health visitors didvalue the information (96% of respondents agreed that there was, or would be an effect onfuture practice through enhanced competence in one or more areas). The impact findings can beused to guide a more precise assessment of information needs.  相似文献   
109.
死亡网络     
"Pro-choice" suicide sites come under legal scrutiny(详细审查) After her grandmother died, 21-year-old Julie Veteto sank into a severe depressions. Still, her family was stunned the afternoon her husband, Roger, came home to find her body dangling(摇摆) from a dog leash in their bathroom doorway. The couple's computer was still connected to the Internet. On the screen: a Web site with detailed information on suicide by hanging.  相似文献   
110.
This paper reviews the historical development of the secondary principalship in the US and examines how the current role of the principal is a result of historical forces. The authors consider a preferred future for the principalship and present recommendations for change.  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