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   197篇
  免费   30篇
  国内免费   77篇
  2024年   1篇
  2023年   4篇
  2022年   5篇
  2021年   7篇
  2020年   14篇
  2019年   17篇
  2018年   7篇
  2017年   9篇
  2016年   6篇
  2015年   7篇
  2014年   10篇
  2013年   23篇
  2012年   17篇
  2011年   20篇
  2010年   11篇
  2009年   14篇
  2008年   8篇
  2007年   25篇
  2006年   22篇
  2005年   17篇
  2004年   10篇
  2003年   10篇
  2002年   11篇
  2001年   2篇
  2000年   6篇
  1999年   2篇
  1997年   2篇
  1995年   2篇
  1994年   1篇
  1993年   1篇
  1990年   4篇
  1988年   2篇
  1986年   2篇
  1985年   1篇
  1984年   2篇
  1982年   1篇
  1981年   1篇
排序方式: 共有304条查询结果,搜索用时 15 毫秒
271.
物理学家作为一个社会的人,他可以信神,也可以不信。或者说他有信与不信任何一种宗教的自由。但作为一个科学家,无论他们是不是信奉宗教的,他们的科学研究工作实际上是与宗教教义相悖的。"尽管近代早期的一些科学家们从事科学研究的动机可以是来自于宗教,他们本人也可以是虔诚的宗教徒,可一日他们的科学发现与宗教教义相抵  相似文献   
272.
We investigated the use of nested contact relations in perceiving the relative distance of locations on discontinuous surfaces. Observers viewed computer-generated displays under monocular static conditions and adjusted a marker to match the perceived distance of a cube. The marker and cube were raised above the ground by two different platforms separated by a gap. The relative heights and distances of the platforms were varied. We found the following: (1) When spatially discontinuous surfaces are coplanar, locations of objects resting on these surfaces appear to be compared directly, bypassing relations with the underlying ground plane. (2) Spatial displacement between the platforms produces a bias, in the direction of the displacement, in the perceived relative locations of objects resting on the platforms. This suggests that local spatial relations between objects and their platforms are only partially integrated with more global spatial relations between the discontinuous surfaces of the platforms.  相似文献   
273.
In complex natural scenes, objects at different spatial locations can usually be related to each other through nested contact relations among adjoining surfaces. Our research asks how well human observers, under monocular static viewing conditions, are able to utilize this information in distance perception. We present computer-generated naturalistic scenes of a cube resting on a platform, which is in turn resting on the ground. Observers adjust the location of a marker on the ground to equal the perceived distance of the cube. We find that (1) perceived distance of the cube varies appropriately as the perceived location of contact between the platform and the ground varies; (2) variability increases systematically as the relating surfaces move apart; and (3) certain local edge alignments allow precise propagation of distance information. These results demonstrate considerable efficiency in the mediation of distance perception through nested contact relations among surfaces.  相似文献   
274.
In this paper we discuss an asymmetry in the Case system of German and its implications for human sentence processing: the asymmetry between nominative/accusative and dative case. Starting from the assumption that dative case has a distinct grammatical representation--dative DPs are embedded into an extra structural layer KP--the results of two experiments will be presented, which show that dative assignment during reanalysis is accompanied by additional processing operations that are not needed when accusative or nominative are assigned. In particular, we show that dative assignment during reanalysis triggers reaccess to the mental lexicon, giving rise to greater processing difficulty. We conclude with a discussion of empirical and theoretical consequences of our findings.  相似文献   
275.
Why do poorer and less educated Asians trust their institutions of governance more than their richer and well educated counterparts, despite their disadvantaged position within society? System justification theory (SJT) assumes that this trust is driven by a system-level motivation that operates independently from social identity needs. In two nationally representative surveys spanning several years (Ntotal = 221,297), we compared SJT's explanation with a newer social identity model of system attitudes (SIMSA): that system justification amongst disadvantaged Asians is driven by a group norm for harmony, especially amongst those who are strongly invested in their national ingroup. The results supported SIMSA more than SJT. Specifically, a strong sense of national identification boosted trust in systems of governance amongst poorer and less-educated Asians, both when societal norms for harmony (Study 1), and personal endorsement of this norm (Study 2) were strong. Hence, social identity needs help to explain stronger system justification among objectively disadvantaged Asians.  相似文献   
276.
Whereas many studies have shown that underemployed people experience lower objective career success and lower subjective career success while being underemployed, little research has been done on the lasting effects of underemployment. This study addresses the role of time in career success research by examining the impact of level underemployment, content underemployment and contingent employment on subsequent objective (i.e. salary) and subjective career success (i.e. job satisfaction). Our 10-year longitudinal dataset of 335 Dutch university graduates permits us to examine the impact of preceding underemployment as well as the specific timing of the underemployment in one's career. The multilevel analysis results illustrate that level and contingent underemployment have a negative impact on future pay, whereas content underemployment negatively affects job satisfaction five years later. In addition, for level underemployment also the timing turns out to matter, suggesting that the signal that it sends to employers may differ depending on when in one's career it happened. Taken together, these findings point to the importance of using a path-dependency perspective when trying to understand people's career success.  相似文献   
277.
278.

Work-life balance is essential for nurses who are in direct contact with patients in healthcare organizations. This study employs the measurement of nurses’ behaviors rather than the measurement of their perceptions to identify critical demographic variables influencing the work-life balance. A work-life balance dimension measured by a four-point frequency scale from the Chinese version of the Safety Attitudes Questionnaire is used to assess nurses’ behaviors in practice from a longitudinal viewpoint based on a regional teaching hospital in Taiwan. The results show that experience in organization, respondents reporting events in the past 12 months, and experience in position are three critical factors to impact nurses’ work-life balance. Moreover, “work all day without break,” “change the individual or family plan because of the work,” and “work overtime” are the most critical questions in the work-life balance that can be the targets for hospital management to enhance the balance of nurses’ work-life conditions in the hospital.

  相似文献   
279.
两汉皇帝自武帝起有 1 7人在诏书中征引经书 ,这从一个侧面反映了两汉经学发展的轨迹。这一现象展示了政治与经学互动的规律 :经学政治化与政治经学化。此后 ,引经据典成为中国古代文人为文的传统 ,历千年而不衰。其对中国社会发展的影响主导面是消极的  相似文献   
280.
目标定向、自我效能感与主观幸福感的关系   总被引:2,自引:0,他引:2       下载免费PDF全文
以207名企业员工为研究对象,探讨了目标定向、自我效能感与主观幸福感的关系及自我效能感在目标定向和主观幸福感之间的中介作用。结果表明:学习目标定向、工作自我效能感和社交自我效能感均对主观幸福感有着显著的正向影响;主观幸福感对任务绩效有着显著的正向影响;同时,工作自我效能感在学习目标定向和主观幸福感之间起着完全中介作用。  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