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   21497篇
  免费   351篇
  国内免费   139篇
教育   14975篇
科学研究   2280篇
各国文化   187篇
体育   1459篇
综合类   274篇
文化理论   100篇
信息传播   2712篇
  2022年   165篇
  2021年   337篇
  2020年   316篇
  2019年   404篇
  2018年   557篇
  2017年   587篇
  2016年   531篇
  2015年   482篇
  2014年   688篇
  2013年   3616篇
  2012年   794篇
  2011年   864篇
  2010年   740篇
  2009年   740篇
  2008年   728篇
  2007年   773篇
  2006年   779篇
  2005年   705篇
  2004年   407篇
  2003年   398篇
  2002年   339篇
  2001年   471篇
  2000年   377篇
  1999年   355篇
  1998年   205篇
  1997年   205篇
  1996年   209篇
  1995年   160篇
  1994年   174篇
  1993年   153篇
  1992年   231篇
  1991年   219篇
  1990年   248篇
  1989年   224篇
  1988年   175篇
  1987年   183篇
  1986年   187篇
  1985年   177篇
  1984年   183篇
  1983年   170篇
  1982年   134篇
  1981年   136篇
  1980年   132篇
  1979年   190篇
  1978年   160篇
  1977年   113篇
  1976年   119篇
  1975年   111篇
  1973年   104篇
  1971年   116篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
201.
This paper reveals the complex diversity that underpins ostensibly similar transnational education programmes (TNE), through a comparison of UK TNE in Malaysia and Hong Kong. It draws on data from two different yet cognate studies on the role of UK universities in delivering higher education in Asia. Some fine-grained and informative differences between the ways in which ‘value’ in TNE is constructed in different host contexts is revealed. The paper brings to light the ‘voices’ of TNE students and graduates, which are very seldom heard. The arguments adapt and extend the concepts of education as a positional good, and as cultural capital. For various instrumental, intrinsic and personal reasons the authors discuss in detail, UK TNE is more highly valued in Malaysia than in Hong Kong. The paper makes a wider contribution to knowledge on the changing landscape of international higher education and the impact on social and personal (dis)advantage.  相似文献   
202.
本文讨论了固支障碍问题的混合有限元逼近,证明了离散问题解的收敛性。  相似文献   
203.
204.
This study examined the direct association between parental educational expectations and adolescents’ academic self‐efficacy, as well as the moderating influence of parental academic socialization messages. Participants were 148 Latino parent–adolescent dyads with the majority of Mexican origin (80.4%). Most of the parent participants were mothers (85.8%). Adolescents were 13 (46%) or 14 (54%) years of age, and 53% identified as female. Adolescents reported their academic self‐efficacy and perceptions of their parents’ educational expectations; parents reported on their academic socialization messages of shame/pressure and effort regarding academics. The results suggest that, after accounting for parents’ level of education and immigrant status, parental educational expectations were positively associated with adolescent academic self‐efficacy. This association was stronger among adolescents whose parents reported transmitting fewer messages of shame/pressure and academic effort. These results point to the importance of nuances in the content and type of academic socialization messages within Latino families.  相似文献   
205.
邓小平统战策略有两手策略、民主策略、亲善策略、宽大策略和化解策略 ,共五个方面。邓小平提出这些统战观点所针对的时代背景及其精神实质 ,在当前具有重大的理论意义和实践功能。  相似文献   
206.
207.
Rats were trained in a three-alternative spatial delayed matching-to-sample task in a starburst maze. Samples consisted of rewarded forced choices of one arm, and retention was indicated by rats’ returning to that arm after a 90-sec delay. If a rat made an error on its first choice, it was returned to the start compartment and allowed a second choice. Unlike in previous experiments with this task, all three arms were available during the animals’ second choices. The rats tended to perseverate in their second choices by returning to the arm that they had erroneously visited on their first choice. In Experiment 1, the accuracy of second choices following first-choice errors was below chance during the first block of sessions, when a 90-sec delay intervened between the first choice and the second choice, and at chance during the second block of sessions, when a short (5–6 see) delay intervened between first and second choices. In Experiment 2, long-delay and short-delay sessions were randomly presented to naive subjects. Similar results were obtained. In both experiments, the tendency to repeat the erroneous first choice was greater when long delays separated the two choices than when short delays were used. The results suggest that rats make their first-choice errors because they erroneously encode or remember the location of the sample and that they base their second choices on the same erroneous-memory. The increase in perseveration at long delays implies some kind of rehearsal-like mechanism that slows forgetting of the memory controlling the first choice.  相似文献   
208.
OBJECTIVE: The purpose of this study is to examine processing of facial emotions in a sample of maltreated children showing high rates of post-traumatic stress disorder (PTSD). Maltreatment during childhood has been associated independently with both atypical processing of emotion and the development of PTSD. However, research has provided little evidence indicating how high rates of PTSD might relate to maltreated children's processing of emotions. METHOD: Participants' reaction time and labeling of emotions were measured using a morphed facial emotion identification task. Participants included a diverse sample of maltreated children with and without PTSD and controls ranging in age from 8 to 15 years. Maltreated children had been removed from their homes and placed in state custody following experiences of maltreatment. Diagnoses of PTSD and other disorders were determined through combination of parent, child, and teacher reports. RESULTS: Maltreated children displayed faster reaction times than controls when labeling emotional facial expressions, and this result was most pronounced for fearful faces. Relative to children who were not maltreated, maltreated children both with and without PTSD showed enhanced response times when identifying fearful faces. There was no group difference in labeling of emotions when identifying different facial emotions. CONCLUSIONS: Maltreated children show heightened ability to identify fearful faces, evidenced by faster reaction times relative to controls. This association between maltreatment and atypical processing of emotion is independent of PTSD diagnosis.  相似文献   
209.
余绍宋先生是我国书画专类目录学的奠基人 ,他的《书画书录解题》辑录了我国二千年来的书画著述 ,按现代科学分类法 ,予以分类归纳 ,并对每一种著作进行考辨与评价。本文主要介绍余先生在这方面的成就。  相似文献   
210.
The Communication module of the B.A. (Hons) Humanities modular degree at Bristol Polytechnic involves non‐Art & Design students in practical audio‐visual media work through ‘live’ projects undertaken for ‘clients’ in the community ‐‐ schoolteachers, social workers, charities, etc. ‐‐ the work being carried out in teams of between 2 and 5.

The theoretical base of the course is face‐to‐face interaction in real‐life situations such as the classroom and the television interview. The method of assessment here is to present examinees with selected communicative events on videotape and call for analysis and comparison, and evaluation of the theoretical approaches employed. This places a premium on students being able to apply theory directly to real‐life situations, rather than rehearse those theories in essay form.

The course is both intended by the staff and perceived by the students to be distinctly different from the other modules of an otherwise book‐based degree in providing for the essentially practical application of ideas and a basic introduction to alternative modes of communication. By means of the projects, drawn from a variety of sources far removed from the degree course and the institution, the analytical, research, and design skills of the students are applied in a realistic way to broaden their own perspectives and to be of lasting benefit within the community.  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