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   3288篇
  免费   157篇
  国内免费   2篇
  3447篇
  2024年   11篇
  2023年   39篇
  2022年   64篇
  2021年   92篇
  2020年   94篇
  2019年   126篇
  2018年   164篇
  2017年   167篇
  2016年   128篇
  2015年   99篇
  2014年   105篇
  2013年   398篇
  2012年   239篇
  2011年   230篇
  2010年   176篇
  2009年   91篇
  2008年   203篇
  2007年   157篇
  2006年   150篇
  2005年   103篇
  2004年   82篇
  2003年   64篇
  2002年   55篇
  2001年   36篇
  2000年   43篇
  1999年   33篇
  1998年   14篇
  1997年   13篇
  1996年   10篇
  1995年   13篇
  1994年   13篇
  1993年   11篇
  1992年   16篇
  1991年   12篇
  1990年   14篇
  1989年   14篇
  1988年   9篇
  1987年   12篇
  1986年   8篇
  1985年   8篇
  1982年   8篇
  1981年   9篇
  1974年   6篇
  1973年   10篇
  1972年   7篇
  1971年   11篇
  1969年   6篇
  1968年   11篇
  1965年   6篇
  1963年   7篇
排序方式: 共有3447条查询结果,搜索用时 15 毫秒
971.
Exposure to media images of the ‘body‐perfect’ ideal has been partly blamed for the pursuit of thinness among women and muscularity among men. Research has largely overlooked the materialistic messages frequently associated with these images. We present findings from two studies with Icelandic students aged 18–21, one focusing on young women (= 303) and one on young men (= 226), which test associations of materialistic and body‐perfect ideals with body dissatisfaction and excessive body shaping behaviors. In both studies, the internalization of materialistic values is strongly linked to the internalization of body‐perfect ideals: the thin‐ideal for young women, and the muscular‐ideal for young men. A materialist value orientation also predicted body dissatisfaction in both studies, and was linked to body shaping behaviors, albeit differently for young women and men. Thus, the research identifies materialism as a further correlate of both body dissatisfaction and excessive body‐shaping behaviors. The findings support Dittmar's ( 2008 ) Consumer Culture Impact Model, which proposes that the body‐perfect and ‘material good life’ ideals jointly impact well‐being.  相似文献   
972.
Dissent is thought to play a valuable role in science, so that scientific communities ought to create opportunities for receiving critical feedback and take dissenting views seriously. There is concern, however, that some dissent does more harm than good. Dissent on climate change and evolutionary theory, for example, has confused the public, created doubt about existing consensus, derailed public policy, and forced scientists to devote resources to respond. Are there limits to the extent to which scientific communities have obligations to seek and engage dissenting views? We consider the two main criteria that have been offered for what constitutes “normatively appropriate dissent” or the sort of dissent that ought to have the opportunity to be heard and taken seriously. Many have argued that dissenters must (1) engage in uptake of criticism against their own views and (2) share some standards for theory appraisal. We argue these criteria ultimately are unsuccessful.  相似文献   
973.
In this article the authors describe the program of the Hospital Real y General de Nuestra Señora de Gracia in Saragossa (Spain) and its importance in the history of occupational therapy. It is believed to be the first hospital in the world to use occupations as therapy for psychiatric patients. Pinel knew about this new trend through a report by Iberti and wrote about it in his book Medico-Philosophical Treatise on Mental Alienation.  相似文献   
974.
975.
This study examines women’s representation in Spanish national online newspapers. For this purpose, we developed an automatic content analysis method to analyze an extensive sample of 34,235 news articles gathered from March to May 2006. Our general objective was to investigate possible gender bias in Spanish online news. To do so we focused on three journalistic routines, one at the individual level of the reporter (gender) and two at the media routine level (sections, publication day, and article length). The results of the estimated multivariate models revealed that women are still linked to traditionally “female” sections, such as people, society, and culture. Analysis of article length and publication day showed that women appear more frequently in shorter news items and in the Sunday news, which we interpreted as indicators of male association with newsworthiness. We also found differences in gender reporting since female journalists tend to include more women in the news they report than their male peers. These results provide evidence that online newspapers continue to perpetuate underrepresentation, stereotyping, and discrimination of women in web news thereby reinforcing gender inequality.  相似文献   
976.
As Spain experienced rapid societal and gender equality changes after the end of the dictatorship in 1975, the development of gender equality in Spain has differed from other European countries and the United States. Therefore, the results of Spanish studies conducted on gender and leadership might differ from those conducted in countries with other historical backgrounds such as other European countries or the United States. We systematically reviewed the current theoretical and empirical literature on gender and leadership with a special emphasis on this comparison. Thereby, we focused on four essential aspects: (a) the underlying mechanism of gender inequality (e.g., traditional gender roles), (b) gender and leadership behavior, (c) the relation of female representation in top management and on boards with organizational performance, and d) female representation and non-performance-related organizational outcomes. Further, Spain is currently experiencing a severe economic crisis. On the one hand, such a crisis might provide a chance for gender equality development; on the other hand, it might trigger a regression toward traditional gender roles in society. Thus, in our discussion, we relate the results of our comparison to these two different but possible consequences of the crisis. To conclude, we outline directions for future research that we hope will provide answers to important questions in this area of research.  相似文献   
977.
978.
Previous studies have shown that a yellow filter (CPF450) can increase contrast, motion sensitivity, vergence, and accommodation. We investigated whether a yellow filter can reduce age-related visual deficits. We tested two groups of 60 observers (mean age 24 vs. 72) in an object categorization task. Grayscale photographs of natural objects and artifacts were displayed either centrally or peripherally (21°) at low (8%) or medium (30%) contrast. There were three filter conditions (no filter, placebo filter, and yellow filter). Both groups of observers performed similarly on central and medium-contrast pictures. The deleterious effects of reduced contrast and eccentricity were stronger in elderly individuals. Moreover, the yellow filter globally improved the speed of categorization for the elderly participants. The decrease in response time in the yellow filter condition was larger when the stimuli were displayed peripherally in both groups. A yellow filter should be considered as a potential means for visual improvement in normal aging.  相似文献   
979.
Aggressive interactions between animals often occur in the presence of third parties. By observing aggressive signalling interactions, bystanders may eavesdrop and gain relevant information about conspecifics without the costs of interacting. On the other hand, interactants may also adjust their behaviour when an audience is present. This study aimed to test how knowledge about fighting ability of an audience affects aggressive interactions in male Siamese fighting fish. Subjects were positioned between two dyads of non-interacting males and allowed to observe both dyads shortly before the view to one of the dyads was blocked, and the dyads were allowed to interact. Subjects were subsequently exposed to an unknown opponent in the presence of either the winner or the loser of the seen or unseen interaction. The results suggest a complex role of the characteristic of an audience in the agonistic behaviours of a subject engaged in an interaction. The presence of a seen audience elicited more aggressive displays towards the opponent if the audience was a loser. This response was different in the presence of an unseen audience. Subjects then directed a higher aggressiveness against their opponent if the audience was a winner. These results also suggest a potentially more complex and interesting process allowing individuals to gain information about the quality and threat level of an unknown audience while it is interacting with a third party. The importance of information acquisition for an individual to adapt its behaviour and the role of communication networks in shaping social interactions are discussed.  相似文献   
980.
Previous research on emotion in language has mainly concerned the impact of emotional information on several aspects of lexico-semantic analyses of single words. However, affective influences on morphosyntactic processing are less understood. In the present study, we focused on the impact of negative valence in the processing of gender agreement relations. Event-related potentials (ERPs) were recorded while participants read three-word phrases and performed a syntactic judgment task. Negative and neutral adjectives could agree or disagree in gender with the preceding noun. At an electrophysiological level, the amplitude of a left anterior negativity (LAN) to gender agreement mismatches decreased in negative words, relative to neutral words. The behavioral data suggested that LAN amplitudes might be indexing the processing costs associated with the detection of gender agreement errors, since the detection of gender mismatches resulted in faster and more accurate responses than did the detection of correct gender agreement relations. According to this view, it seems that negative content facilitated the processes implicated in the early detection of gender agreement mismatches. However, gender agreement violations in negative words triggered processes involved in the reanalysis and repair of the syntactic structure, as reflected in larger P600 amplitudes to incorrect than to correct phrases, irrespective of their emotional valence.  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