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   4152篇
  免费   24篇
财政金融   231篇
工业经济   174篇
计划管理   934篇
经济学   912篇
综合类   7篇
运输经济   7篇
旅游经济   19篇
贸易经济   863篇
农业经济   45篇
经济概况   815篇
邮电经济   169篇
  2015年   62篇
  2014年   191篇
  2013年   468篇
  2012年   158篇
  2011年   104篇
  2010年   100篇
  2009年   130篇
  2008年   78篇
  2007年   42篇
  2006年   163篇
  2005年   132篇
  2004年   59篇
  2003年   62篇
  2002年   49篇
  2001年   51篇
  1996年   39篇
  1993年   60篇
  1992年   57篇
  1991年   57篇
  1990年   55篇
  1989年   49篇
  1988年   37篇
  1987年   52篇
  1986年   53篇
  1985年   46篇
  1984年   66篇
  1983年   36篇
  1982年   52篇
  1981年   53篇
  1980年   51篇
  1979年   53篇
  1978年   56篇
  1977年   67篇
  1976年   79篇
  1975年   45篇
  1974年   46篇
  1973年   37篇
  1972年   67篇
  1971年   68篇
  1970年   58篇
  1969年   25篇
  1967年   32篇
  1965年   25篇
  1964年   27篇
  1963年   38篇
  1961年   25篇
  1960年   30篇
  1959年   27篇
  1958年   26篇
  1941年   25篇
排序方式: 共有4176条查询结果,搜索用时 0 毫秒
81.
Escapism is one of the oldest concepts for the explanation of media use but is still lacking theoretical differentiation. The dimensions reason, means and duration of escape are used to differentiate three modes of escapism: modification, postponement and repression. Repression should be of special interest for communication science because media use on the one hand and long phases of escapism on the other hand are of higher probability in this mode than in the others. Hypotheses are formulated and empirically tested for the existential issues of death and the meaning of life. Results show that television is the preferred mean of escaping from displeasing thoughts. On the other hand we do not find a connection between the amount of television use and thinking about existential issues. The hypothesis of a narcotic dysfunction is not confirmed. For the matter of existential issues television seems to offer escape and stimulation at the same time.  相似文献   
82.
A true democracy is based on political competition. Political parties set up programmes and suggest solutions which the electorate is then asked to choose between. Competition for tomorrow??s leadership positions can only be fair if today there are equal opportunities for all parties. The German legislative body passed several laws which are meant to guarantee equal opportunities in this contest. In times of an ever increasing importance of the mass media for political communication, this paper is meant to answer the question of whether??besides equal political opportunities??there is something like equal media opportunities, and if so, which indicators can be used to measure them. After a broad theoretical examination, an empirical analysis of the media coverage prior to the general elections in 1998, 2002 and 2009 follows. It reveals that??from a quantitative point of view??there certainly are equal media opportunities for the political parties sitting in the German Bundestag. The chances for media coverage are, especially for smaller parties, better than the gradation of equal chances by formal regulations.  相似文献   
83.
84.
85.
86.
87.
In the second half of 2009, the entire media agenda in Germany was dominated by the swine flu, next to the German Federal Parliament elections. Criticism was voiced in the media against the pharmaceutical industry for lobbying the nationwide swine flu vaccination, which was widely considered nothing but a product of the industry’s lobbying power. In order to avoid the usual interviews with lobbyists, we attempted to apply a new methodological framework approach in analysing lobbying processes and key stakeholders in the public sphere—and outside. Crucial to the diversified approach, which involves quantitative content analysis of media coverage and press releases, are interviews with journalists, lobbyists’ network analysis and internet research on biographies. Although a conspiracy could not be conclusively proven, the results do indicate associations that validate the criticism of the industry’s lobbying activities.  相似文献   
88.
In this paper we discuss how repetition of a single statement affects its perceived credibility. Using an experimental design, our results support previous psychological studies on the “truth-effect”, which have shown that repeated messages are considered more credible than non-repeated messages. In addition, our study sheds light on the unanswered question why the truth-effect vanishes or reverses if statements are repeated too often. Analysis strongly points to a parallel, indirect negative effect, caused by participants showing reactance as a consequence of repetition.  相似文献   
89.
Using the theory of cognitive dissonance, this study investigates whether users of an online magazine prefer contents that agrees to their attitudes to political issues. In contrast to earlier studies, dissonance is defined issue-specifically rather than by party identification. Moreover, personal relevance is also included. In a two-step data collection, attitudes and relevance assessments were measured first. Participants were asked in a second session to look at an online magazine. Background software recorded the selection of and the time spent with specific contents as participants looked at the magazine. Results show that users spent more time with attitude-consistent information. This was, however, mostly due to persons who had rated issue relevance high. Users with low or moderate rating for issue relevance spent significantly less time with attitude-consistent content and significantly more time with attitude-inconsistent information, as compared with users with high relevance ratings. The influence of issue relevance is discussed as an explanation of contradictory results on cognitive dissonance and media use.  相似文献   
90.
The importance of the internet has increased significantly in recent years. The easy access of this »new« medium sparked many hopes for a democratization of the public sphere and of public debate: Many authors argued that the internet will make actors and interpretations of topics visible to those parts of the broader public who are usually marginalized in »old« mass media. In an empirical analysis, we compared print media coverage and internet communication to assess these claims. For the case of human genome research — i.e. a bioscientific topic that reseived extensive media attention in Germany —, we analyzed which actors were given public standing and which frames came to the fore. In contrast to the claims mentioned above, our findings indicate that the debate in the internet does not differ to a significant extent from the offline debate in print media. We could not find a more egalitarian, democratic communication in the internet.  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