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   1037篇
  免费   141篇
  国内免费   122篇
  1300篇
  2024年   3篇
  2023年   22篇
  2022年   17篇
  2021年   39篇
  2020年   57篇
  2019年   71篇
  2018年   57篇
  2017年   57篇
  2016年   68篇
  2015年   58篇
  2014年   56篇
  2013年   179篇
  2012年   57篇
  2011年   64篇
  2010年   33篇
  2009年   45篇
  2008年   64篇
  2007年   48篇
  2006年   54篇
  2005年   43篇
  2004年   43篇
  2003年   43篇
  2002年   18篇
  2001年   13篇
  2000年   21篇
  1999年   8篇
  1998年   11篇
  1997年   10篇
  1996年   5篇
  1995年   6篇
  1994年   2篇
  1993年   5篇
  1992年   2篇
  1991年   4篇
  1990年   1篇
  1989年   2篇
  1987年   1篇
  1985年   4篇
  1984年   1篇
  1982年   3篇
  1981年   1篇
  1980年   2篇
  1977年   2篇
排序方式: 共有1300条查询结果,搜索用时 8 毫秒
961.
A small, low-cost, integrated circuit device is described. This circuit reduces electrical noise, such as that produced from a poor electrode-skin interface and power-line interference (60 Hz). Advantages of this device, with regard to use in electrically noisy environments and with long cables, are discussed.  相似文献   
962.
This paper attempts to follow the changes in the concept state over the last two hundred years, by tracing changes in the aims of public education. Four major stages are identified. The first is characterized by the establishment of the nation-state, when a national and civic education are fused together. The second is marked by the erosion of the identity between state and nation, and by attempts to prevent this process through the development of contradictory educational strategies: neutral civic education and nation building through the mechanism of the melting pot. At the third stage, despite the above-mentioned efforts, the awakening of national minorities demanding special national education sharpens the distinction between civic and national education. This leads to the last stage, the politics of difference, when the nationally homogenous nation-state is replaced by a consciously heterogenous state. Such a state can grant all its members equal civil and national rights only if it endorses traditional liberal values. Hence, despite the fact they firmly criticize liberalism and attempt to revive particular national education supporters of the politics of difference cannot deny that liberal values and civic education offer the best protection for their own ends.  相似文献   
963.
The present study aims to examine culturally invariant and culture-specific patterns of mother-child interaction, and, more specifically, to explore the stability and change of such interactions in structurally different situations. Starting from a control theoretical framework (primary and secondary control), we expected that differences in stress induced by differently structured achievement demands would affect mother-child interactions in Japan and Germany differently. For Japanese as compared to German mothers, less primary control and more responsiveness was expected as a result of the cultural value of social orientation. The sample consisted of 20 mother-child dyads (5-year-old girls) in each culture. The experimental procedure confronted each mother-child dyad with three different situations varying with respect to induced stress (from no stress to high stress). The mother-child interactions were videotaped and analysed in regard to control behaviour and responsiveness. Cultural differences with respect to control behaviour were observed in the expected direction only for high-stress situations. Also, Japanese mothers were more responsive in all three situations. Mother's responsiveness was related to child's secondary control in both cultures. Furthermore, Japanese children showed more secondary control than German children.  相似文献   
964.
In this article I will do three things: I will argue that solidarity is not necessary for political legitimacy, that non-domination is a strong candidate for legitimacy criterion, and, finally, that non-domination can legitimate the egalitarian welfare state.  相似文献   
965.
We address contemporary concerns with fascism by critically assessing the classic law/gospel relation in Lutheran theology. Karl Holl, founder of the Luther Renaissance in the early twentieth century, develops Luther's experience of the self under the divine wrath in terms that have affinity to what Carl Schmitt calls the “state of exception.” We examine similar non‐dialectical ways of relating law/gospel that nourish fascist tendencies on the right or left in North America.  相似文献   
966.
Motives matter and may have implications for how people cognitively experience meaning through religion and spirituality. Specifically, intrinsically motivated people perceive religion and spirituality are more central to meaning in life, which should promote a tendency to adopt more coherent, expansive cognitive representations. In contrast, extrinsically motivated people may adopt narrower cognitive representations since their motivation is more proximally oriented. The present study tests these possibilities by examining how religious motivation relates to action identification (tendency to use coherent, higher‐level cognitive representations). Results from 630 participants revealed that among religious people, intrinsic and extrinsic‐personal religious motivations indirectly influence higher‐level action identification through strength of spiritual beliefs. These relationships were not evident among nonreligious people. Furthermore, extrinsic‐social religious motivation and religious service attendance did not relate to action identification. These findings demonstrate that religious motivation differences are consequential for the action identities people rely upon to form a sense of meaning.  相似文献   
967.
This study aims to examine the impact of affective states and affective shifts on ideation and evaluation of creativity. Affects were induced by a two‐stage imagination procedure of recalling autobiographical experiences. Three periods of divergent thinking were measured to represent the participants’ creative ideation at different times. Creative evaluation was measured by estimating the originality of each response provided by the participants. The results indicate that (a) during the initial period of ideation, groups with positive affect obtain better creative ideation than the groups with neutral or negative affect. (b) The ideation in positive affect groups gradually decreases over time, while the ideation in negative affect groups gradually increases over time. (c) During the evaluation of originality, groups with negative affect have a higher proportion of over‐estimates and a lower proportion of under‐estimates than groups with positive affect. The viewpoints of cognitive tuning theory, which posit that the affective state influences creativity, are supported.  相似文献   
968.
Prior work suggests that follower and leader risk orientation is positively associated with follower creativity. We suggest that this view is oversimplified and propose that follower creativity can be stimulated when leader and follower have diverging risk orientations. We, therefore, apply a configurational approach to creativity, evaluating varying combinations of leader and follower risk orientation on follower creativity. Across two field studies, we demonstrate that (a) follower creativity increases as leaders’ and followers’ risk orientations become more discrepant (i.e., incongruent); (b) follower creativity is higher when leader–follower dyads are congruent at moderate levels of risk orientation compared to congruence at the extremes (i.e., low and high levels); (c) follower‐experienced intellectual stimulation mediates the relationship between leader–follower risk orientation incongruence and congruence and follower creativity; and (d) that leader authority openness moderates the indirect effect of leader–follower risk orientation incongruence on creativity via follower‐experienced intellectual stimulation. Theoretical and practical implications specific to creativity and leader–follower relationships are discussed.  相似文献   
969.
Delay discounting is the loss in value of an outcome as a function of its delay. The present study focused on examining a trait-like characteristic of delay discounting in a preclinical animal model. Specifically, we were interested in whether there was a positive relation between discounting of 2 different outcomes in rats. That is, would rats that discount delayed food steeply also discount delayed water steeply? In addition, we examined how session-to-session variability in discounting could be attributed to differences between subjects (trait variability) and to differences within subjects (state variability). Finally, we measured discounting from early- to mid-adulthood, allowing us to examine changes in discounting as a function of age. Overall, we found a moderate, positive correlation between discounting of food and discounting of water in rats, providing further evidence that the relative consistency with which individuals discount different outcomes is a trait-like characteristic. In addition, we found a high degree of within-subject variability in discounting, indicating strong state-like differences from session to session. Finally, overall, discounting decreased as a function of age; however, individual-subject data showed variability in how discounting changed across time. Overall, our results show that differences in delay discounting between individuals reflect variability in both trait- and state-like characteristics.  相似文献   
970.
Driver state monitoring (DSM) systems aim to measure driver/occupant state, considering factors such as fatigue, workload, attentiveness, and wellbeing. They are influential for some vehicles on the road today, but as we move towards higher levels of automation their use is expected to become even more important. Uncertainty around public perception of these systems is a potentially limiting factor, with potential concerns for privacy, data storage, perceived utility, and reliability amongst other things posing potential threats. A survey was conducted based on the Universal Theory of Acceptance and Use of Technology (UTAUT) framework, which collected 311 individual responses to explore the acceptability of this technology in specific relation to conditionally and partially automated vehicles. This paper identified that the factors of effort expectancy, performance expectancy, social influence, and attitudes towards using new technology are all positively related to overall behavioural intention, whereas anxiety is negatively related. Other demographic influences are discussed, and recommendations made for future research and marketing/implementation of DSM systems to ensure acceptance by future users.  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