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   2698篇
  免费   40篇
  国内免费   4篇
教育   2033篇
科学研究   164篇
各国文化   36篇
体育   278篇
综合类   5篇
文化理论   58篇
信息传播   168篇
  2023年   28篇
  2022年   63篇
  2021年   74篇
  2020年   109篇
  2019年   164篇
  2018年   209篇
  2017年   193篇
  2016年   184篇
  2015年   127篇
  2014年   140篇
  2013年   576篇
  2012年   145篇
  2011年   98篇
  2010年   58篇
  2009年   69篇
  2008年   55篇
  2007年   56篇
  2006年   39篇
  2005年   39篇
  2004年   41篇
  2003年   34篇
  2002年   39篇
  2001年   20篇
  2000年   20篇
  1999年   6篇
  1998年   15篇
  1997年   9篇
  1996年   15篇
  1995年   13篇
  1994年   12篇
  1993年   5篇
  1992年   9篇
  1991年   5篇
  1990年   9篇
  1989年   11篇
  1988年   4篇
  1987年   2篇
  1986年   2篇
  1985年   5篇
  1983年   2篇
  1981年   3篇
  1980年   4篇
  1979年   4篇
  1978年   4篇
  1977年   4篇
  1976年   5篇
  1974年   2篇
  1970年   2篇
  1956年   1篇
  1948年   1篇
排序方式: 共有2742条查询结果,搜索用时 15 毫秒
1.
2.
3.
ABSTRACT

This paper aims to analyse the initiatives undertaken by some immigrant communities residing in Latin America to record their mobilisation around the First World War. After the armistice, European communities in Argentina, Bolivia, Brazil, Chile, Mexico, Paraguay, Peru, Uruguay and other countries gathered detailed information about their activities during the conflict, published as profusely illustrated books of remembrance, offered to their governments as proof of their loyalty. The article intends to establish the peculiar nature of these publications as records of the war effort, and analyse the agents and processes of their elaboration, and their role as commemorative but also as archival documents.  相似文献   
4.
5.
The article sets off with a brief summary of the history of appraisal and disposal of records as processed at the National Archives of Iceland (NAI) since its establishment in 1882 to present times. Rules on appraisal and disposal of records introduced in 1900, 1911, and 1916 were ignored and all records were kept. Status quo remained until 1985 when a new National Archives Act was passed. The appraisal and disposal process adopted then is described and explained. It included the publication of instructions on records management as well as forms relating to records management. The influence of acts of law on the appraisal and disposal process is explained. Finally the experience with the arrangement of organised appraisal in Iceland is described.  相似文献   
6.
采用日常生活活动功能指数、丧失率、L ogistic回归分析 ,对江西省上饶市老年人日常生活活动独立自理能力进行评价并对其影响因素进行研究。结果表明 ,江西省上饶市老年人日常生活活动功能的丧失率随年龄的增长而增大 ,男性高于女性 ,下肢高于上肢 ,丧失率随活动的复杂程度及难度的增大而上升。身体健康是影响老年人日常生活活动功能的最主要因素 ,其次是社会经济、心理、精神等因素。  相似文献   
7.
There is growing interest in the role of emotion when considering communication in the workplace. This work has most often considered workers in front-line service positions in investigations of emotional labor, and human service workers in investigations of empathy and emotional work. In this study, we consider processes of both emotional labor and emotional work in the financial planning profession. Financial planners occupy a role requiring ongoing relationships with clients, conversations about the often emotional topic of money, and a need to manage emotion in a variety of interaction contexts. Thus, from extant theory and literature regarding emotion and communication, we proposed research questions regarding the roles of emotional labor and emotional work in the financial planning profession. These questions were investigated in a web-based survey study of almost 300 professional financial planners and supporting interviews with 14 financial planners. Results indicate support for existing theory on emotional work, extensions to current research regarding emotional labor, and important implications for the role of emotion and communication in a range of professional service roles.  相似文献   
8.
This study examined whether persuasive health messages embedded in shooter games have broad or targeted effects on players’ willingness to engage in risk behaviors (N = 145). Participants presented with in-game health messages discouraging alcohol-impaired driving of motor vehicles showed reduced willingness to drink alcohol and to operate both motor and nonmotor vehicles, compared to those in a no-message gaming control condition. There were no spillover effects on willingness to smoke cigarettes or marijuana, thus implying targeted persuasive effects. In addition, players experiencing high instead of low cognitive load showed decreased postexperiment willingness to drink and operate nonmotor vehicles, thus suggesting that playing a game under high cognitive load can influence players’ attitudes. The findings replicate previous research and further expand on knowledge-activation and thought-disruption mechanisms underlying the persuasiveness of health messages.  相似文献   
9.
Automatic detection of source code plagiarism is an important research field for both the commercial software industry and within the research community. Existing methods of plagiarism detection primarily involve exhaustive pairwise document comparison, which does not scale well for large software collections. To achieve scalability, we approach the problem from an information retrieval (IR) perspective. We retrieve a ranked list of candidate documents in response to a pseudo-query representation constructed from each source code document in the collection. The challenge in source code document retrieval is that the standard bag-of-words (BoW) representation model for such documents is likely to result in many false positives being retrieved, because of the use of identical programming language specific constructs and keywords. To address this problem, we make use of an abstract syntax tree (AST) representation of the source code documents. While the IR approach is efficient, it is essentially unsupervised in nature. To further improve its effectiveness, we apply a supervised classifier (pre-trained with features extracted from sample plagiarized source code pairs) on the top ranked retrieved documents. We report experiments on the SOCO-2014 dataset comprising 12K Java source files with almost 1M lines of code. Our experiments confirm that the AST based approach produces significantly better retrieval effectiveness than a standard BoW representation, i.e., the AST based approach is able to identify a higher number of plagiarized source code documents at top ranks in response to a query source code document. The supervised classifier, trained on features extracted from sample plagiarized source code pairs, is shown to effectively filter and thus further improve the ranked list of retrieved candidate plagiarized documents.  相似文献   
10.
European Journal of Psychology of Education - Children’s motivation to master challenging tasks is an important predictor of school success, and yet, such motivation declines during...  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