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   2469篇
  免费   16篇
教育   1803篇
科学研究   147篇
各国文化   20篇
体育   287篇
综合类   1篇
文化理论   53篇
信息传播   174篇
  2024年   36篇
  2023年   26篇
  2022年   52篇
  2021年   72篇
  2020年   107篇
  2019年   197篇
  2018年   210篇
  2017年   201篇
  2016年   162篇
  2015年   116篇
  2014年   88篇
  2013年   528篇
  2012年   86篇
  2011年   67篇
  2010年   60篇
  2009年   35篇
  2008年   30篇
  2007年   36篇
  2006年   37篇
  2005年   30篇
  2004年   21篇
  2003年   24篇
  2002年   18篇
  2001年   16篇
  2000年   13篇
  1999年   15篇
  1998年   13篇
  1997年   8篇
  1996年   11篇
  1995年   11篇
  1994年   11篇
  1993年   15篇
  1992年   8篇
  1991年   10篇
  1990年   14篇
  1989年   6篇
  1988年   4篇
  1987年   8篇
  1986年   9篇
  1985年   6篇
  1984年   4篇
  1981年   9篇
  1980年   7篇
  1979年   8篇
  1978年   8篇
  1977年   5篇
  1976年   4篇
  1973年   3篇
  1970年   3篇
  1963年   3篇
排序方式: 共有2485条查询结果,搜索用时 15 毫秒
141.
The study investigates the effects of certain school characteristics on students’ mathematics performances in Turkey in the PISA 2006 while controlling for family background and demographic characteristics. Three models of Hierarchical Linear Modeling (HLM) are constructed. The results reveal that 55% of the variance is attributable to between-schools and the remaining 45% to individual student characteristics. About two-thirds of the 55% is explained by selectivity in admissions, time to study mathematics and students’ SES, gender and the geographical region. The findings are interpreted to explain why Turkish schools differed greatly in average student performance in PISA 2006 by using the conceptual efforts on school quality factors and family background characteristics.  相似文献   
142.
Humans prefer (conditioned) rewards that follow greater effort (Aronson & Mills, 1959). This phenomenon can be interpreted as evidence for cognitive dissonance (or as justification of effort) but may also result from (1) the contrast between the relatively greater effort and the signal for reinforcement or (2) the delay reduction signaled by the conditioned reinforcer. In the present study, we examined the effect of prior force and prior time to produce stimuli associated with equal reinforcement. As expected, pressing with greater force or for a longer time was less preferred than pressing with less force or for a shorter time. However, participants preferred the conditioned reinforcer that followed greater force and more time. Furthermore, participants preferred a long duration with no force requirement over a shorter duration with a high force requirement and, consistent with the contrast account but not with the delay reduction account, they preferred the conditioned stimulus that followed the less preferred, shorter duration, high-force event. Within-trial contrast provides a more parsimonious account than justification of effort, and a more complete account than delay reduction.  相似文献   
143.
This autoethnography posits that my presence as a working-class Chicana obtaining an education in the United States consequently created a Thirdspace environment I recognize as Nepantla. Thirdspace allowed me to navigate urban schooling and elite institutions of higher education. Two narratives demonstrate opposing forms of acquired dominant and nondominant forms of cultural capital to interrogate the value of Thirdspace when considering unique knowledge generated by an insider along the margins. This article articulates that strategic construction of bridges into Nepantla may assist Latino students to successfully navigate the schooling experience and offer the potential to reframe educational discourse.  相似文献   
144.
145.
146.
147.
Training in competences helps university students develop in a comprehensive way that is oriented towards working in their chosen profession. The profession focused on in this study is that of social educator. Degree programmes related to this profession are relatively new and their implementation is also open to variation. As a result of this, a review of the competency profile of the profession is considered necessary. The study presented here aims to validate the competences of this profession by means of expert judgement. The panel of experts assesses the relevance and clarity of each element, as well as giving their opinions on them. The contributions provided result in a set of qualitative and quantitative data whose analysis helps to redefine a profile comprising 23 competences distributed across two dimensions: basic competences (14) and professional competences (9).  相似文献   
148.
    
The objective of this study was to determine which chemical treatment used for disinfecting water in indoor swimming pools had the least impact on users' perceptions of health problems, and which generated the greatest satisfaction with the quality of the water. A survey on satisfaction and perceived health problems was given to 1001 users at 20 indoor swimming pools which used different water treatment methods [chlorine, bromine, ozone, ultraviolet lamps (UV) and salt electrolysis]. The findings suggest that there is a greater probability of perceived health problems, such as eye and skin irritation, respiratory problems and skin dryness, in swimming pools treated with chlorine than in swimming pools using other chemical treatment methods. Pools treated with bromine have similar, although slightly better, results. Other factors, such as age, gender, time of day of use (morning and afternoon) and type of user (competitive and recreational), can also affect the probability of suffering health problems. For all of the above, using combined treatment methods as ozone and UV, or salt electrolysis produces a lower probability of perceived health problems and greater satisfaction.  相似文献   
149.
150.
This study was conducted in an environment of widespread use of social media and mobile applications in the mass media. The general goal of the study was to analyze the use of WhatsApp in cybermedia, specifically in radio. A case study was proposed to examine the use of WhatsApp on the program Las mañanas de RNE, broadcast by Spanish National Radio. It was found that the public was very accepting of the program’s initiative to solicit WhatsApp voice messages, beginning in November 2015. The case study used audio files of a direct broadcast that included specific times for audience participation. The use of WhatsApp was accepted by the audience, in addition to the use of the conventional telephone, as a tool well-suited to listener participation in radio programming. Finally, the study highlights the importance of interactive, participatory spaces in broadcasts through the creation of synergies with new forms of online participation.  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