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   14656篇
  免费   153篇
  国内免费   14篇
教育   9698篇
科学研究   2424篇
各国文化   147篇
体育   983篇
综合类   6篇
文化理论   115篇
信息传播   1450篇
  2021年   122篇
  2020年   170篇
  2019年   264篇
  2018年   355篇
  2017年   325篇
  2016年   281篇
  2015年   195篇
  2014年   259篇
  2013年   2882篇
  2012年   271篇
  2011年   264篇
  2010年   228篇
  2009年   234篇
  2008年   225篇
  2007年   227篇
  2006年   202篇
  2005年   189篇
  2004年   186篇
  2003年   177篇
  2002年   170篇
  2001年   216篇
  2000年   235篇
  1999年   195篇
  1998年   134篇
  1997年   133篇
  1996年   157篇
  1995年   131篇
  1994年   150篇
  1993年   143篇
  1992年   193篇
  1991年   191篇
  1990年   182篇
  1989年   202篇
  1988年   165篇
  1987年   164篇
  1986年   198篇
  1985年   209篇
  1984年   169篇
  1983年   165篇
  1982年   163篇
  1981年   128篇
  1980年   150篇
  1979年   182篇
  1978年   147篇
  1977年   132篇
  1976年   136篇
  1975年   113篇
  1974年   134篇
  1973年   117篇
  1971年   125篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
61.
Field work and structured interviews with 139 foreign sojourners in India were analyzed to describe the socialization of aliens into their role. Attitude scales measuring favorability toward the host country and people were also examined in relation to the respondent's occupational status and elapsed time in India. The results from the field work and interviews suggest that the privileges and high status accorded many Western visitors may contribute to the visitors' derogation of their hosts, a process which is often subtle but unmistakable. The visitors appear to become socialized into the world of aliens rather than the world of their hosts. The higher the visitor's status and the longer the elapsed time in India, the more pronounced these patterns appear. While the correlational nature of the study makes it impossible to determine whether persons with initially unfavorable attitudes are selected into the high status positions or whether the positions themselves create such attitudes, it appears reasonable to conclude that there would be less derogation and alienation if the lures of status and money were removed; persons would be neither selected nor influenced by such factors.  相似文献   
62.
The purpose of this study is to evaluate the impact of a systematic step-by-step curricular-affective program of race relations training on the attitudes and behaviors of white people. Two attitude scales, the Attitude Exploration Survey and the Steckler Attitude Inventory, are used to assess changes in attitudes. A Behavioral Rating Scale is used by participants and their significant others to assess change in behavior in relations to their behavioral objective. The results indicate that both attitudes and behavior are changed as a result of the training program and that the change is retained eight weeks after completion of the program.  相似文献   
63.
64.
The present study examined three hypotheses regarding the consequences of early brain damage for academic achievement: First, early brain insults will have a negative impact on achievement, even in children with normal intelligence. Second, underachievement in these children will be at least partially independent of IQ (i.e., not fully accounted for by a lowering of IQ within the average range). Third, normally intelligent children with histories of brain insult will also manifest selective cognitive dysfunctions. To test these hypotheses, we compared two groups of children who had recovered from Haemophilus influenzae type b meningitis. The "complicated" group consisted of children who, as a consequence of having sustained neurologic complications during their illness, were more likely to have had brain insults. Children in the "uncomplicated" group did not have complications with their illness and were regarded as having escaped significant central nervous system (CNS) pathology. Only children with normal hearing and a prorated Full Scale IQ of at least 80 (WISC-R) were considered. Group differences on the Wide Range Achievement Test-Revised were consistent with the first two hypotheses. Although the two groups had similar Verbal IQs, the complicated group also had a lower mean Performance IQ and performed less well on perceptually demanding neuropsychological tasks. Findings suggest that learning disabilities may have selective, brain-related cognitive antecedents; but they challenge the practice of using IQ criteria for clinical diagnosis.  相似文献   
65.
66.
67.
68.
A brief commentary from the Museum Association of New York (MANY) on the unprecedented gap posed by baby-boomer retirement. Based, in part, on MANY's white paper, “Who's Next? Questioning the Future of Museum Leadership in New York State,” this essay deals with questions of succession, leadership and general differences in New York's museum community.  相似文献   
69.
In recent years, the landscape for wireless technology has changed substantially, with profound implications for the evolution of last-mile access infrastructure. This paper provides a high-level introduction to emerging trends in wireless technology, with a special focus on how these are impacting municipal broadband deployments. Also discussed are some of the key architectural and design choices for wireless networking systems and their implications for cost and system performance. In addition, examples are provided regarding how the new wireless technologies are being deployed by municipalities in a variety of contexts, with reference to wireless technologies currently available from vendors. The policy implications of these trends are discussed further in a companion paper in this issue.  相似文献   
70.
This study examined two levels of media agenda effects on aggregatepublic opinion from different news sources. The effects wereinvestigated immediately and cumulatively. Content analysisdata from the 2000 U.S. presidential election coverage by fournational news organizations were related to the Gallup pre-electionpoll standings of each candidate. Regression analyses foundthat both the salience of a candidate and the salience of theattributes of a candidate cumulatively, but not immediately,influenced his standing in the polls. An analysis of news sourcessupported the finding that the two levels of agenda-settingeffects seemed mostly cumulative rather than immediate. Newsfrom different sources, however, tended to have effects of differentdegrees and sometimes different directions on candidate pollstandings. Cumulative effects of candidate salience on aggregateopinion change were found for non-partisan and neutral newssources—reporters, poll reporting and public documents—whereasthe effects of candidate attribute salience mostly came frompartisan sources—the candidate himself and members ofthe competing political party. Possible political implicationsof these findings are discussed.  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