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   11441篇
  免费   262篇
  国内免费   1篇
  11704篇
  2020年   140篇
  2019年   155篇
  2018年   262篇
  2017年   239篇
  2016年   242篇
  2015年   183篇
  2014年   205篇
  2013年   820篇
  2012年   345篇
  2011年   381篇
  2010年   230篇
  2009年   191篇
  2008年   299篇
  2007年   282篇
  2006年   266篇
  2005年   218篇
  2004年   209篇
  2003年   185篇
  2002年   197篇
  2001年   417篇
  2000年   392篇
  1999年   269篇
  1998年   107篇
  1996年   93篇
  1995年   98篇
  1992年   210篇
  1991年   216篇
  1990年   203篇
  1989年   203篇
  1988年   205篇
  1987年   185篇
  1986年   173篇
  1985年   173篇
  1984年   162篇
  1983年   117篇
  1982年   116篇
  1979年   151篇
  1978年   97篇
  1977年   95篇
  1976年   92篇
  1975年   140篇
  1974年   162篇
  1973年   181篇
  1972年   158篇
  1971年   141篇
  1970年   124篇
  1969年   134篇
  1968年   179篇
  1967年   133篇
  1966年   141篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
Psychologists play key roles in academic health centers. This article is an outgrowth of a presentation at the 2015 Conference of the Association of Psychologists in Academic Health Centers addressing various strategies by which psychologists can effectively adapt to and develop successful careers in medical schools, academic health centers, and teaching hospitals. The authors encourage early career and mid-career psychologists in academic health centers to be active, engaged members of their institutions and to participate in multiple aspects of the research, educational, and clinical missions.  相似文献   
982.
983.
Mark Schroeder has, rather famously, defended a powerful Humean Theory of Reasons. In doing so, he abandons what many take to be the default Humean view of weighting reasons—namely, proportionalism . On Schroeder’s view, the pressure that Humeans feel to adopt proportionalism is illusory, and proportionalism is unable to make sense of the fact that the weight of reasons is a normative matter. He thus offers his own ‘Recursive View’, which directly explains how it is that the weight of reasons is a normative matter. In this paper, I argue against Schroeder that a Humean ought to be a proportionalist. On my view, proportionalism is clearly an intuitive theory of weighting for a Humean, so we should resist it only if Schroeder can demonstrate either that there is a serious problem with the view, or that there is a better alternative. I then further argue that Schroeder fails to deliver on either condition. As a result, I conclude that there are good intuitive reasons for a Humean to be a proportionalist, and no good reason not to be.  相似文献   
984.
985.
Bimanual coordination dynamics in poststroke hemiparetics   总被引:3,自引:0,他引:3  
Poststroke hemiparetic individuals (n = 9) and a control group (n = 9) completed a frequency-scaled circle-drawing task in unimanual and bimanual conditions. Measures of intralimb spatial and temporal task accuracy and interlimb coordination parameters were analyzed. Significant reductions in task performance were seen in both limbs of the patients and controls with the introduction of bimanual movement. Spatial performance parameters suggested that the 2 groups focused on different hands during bimanual conditions. In the controls, interlimb coordination variables indicated predictable hand dominance effects, whereas in the patient group, dominance was influenced by the side of impairment and prior handedness of the individual. Therefore, in this particular bimanual task, performance improvements in the hemiplegic side could not be elicited. Intrinsic coupling asymmetries between the hands can be altered by unilateral motor deficits.  相似文献   
986.
A prototype analysis of forgiveness   总被引:3,自引:0,他引:3  
Many definitions of forgiveness currently exist in the literature. The current research adds to this discussion by utilizing a prototype approach to examine lay conceptions of forgiveness. A prototype approach involves categorizing objects or events in terms of their similarity to a good example, whereas a classical approach requires that there are essential elements that must be present. In Study 1, participants listed the features of forgiveness. Study 2 obtained centrality ratings for these features. In Studies 3 and 4, central features were found to be more salient in memory than peripheral features. Study 5 showed that feature centrality influenced participants' ratings of victims involved in hypothetical transgressions. Thus, the two criteria for demonstrating prototype structure (that participants find it meaningful to judge features in terms of their centrality and that centrality affects cognition) were met.  相似文献   
987.
Prior research on age and emotions has found that older adults may show better physiological regulation to stressful stimuli than do younger adults. However, the stress reactivity literature has shown that age is associated with higher cardiovascular reactivity to laboratory stress (J. R. Jennings et al., 1997). The authors investigated these conflicting findings further by examining daily ambulatory blood pressure in 428 middle-aged to older adults. Consistent with the age and reactivity literature, relatively old individuals showed significantly greater increases in ambulatory diastolic blood pressure compared with younger individuals when dealing with daily stressors. However, results also revealed that relatively old individuals reported less of an increase in negative affect during daily stress compared with their younger counterparts. The results of this study are consistent with the age-related increase in cardiovascular risk but highlight the complex links between stress and different facets of the aging process.  相似文献   
988.
In 7 experiments, the authors explored whether visual attention (the ability to select relevant visual information) and visual working memory (the ability to retain relevant visual information) share the same content representations. The presence of singleton distractors interfered more strongly with a visual search task when it was accompanied by an additional memory task. Singleton distractors interfered even more when they were identical or related to the object held in memory, but only when it was difficult to verbalize the memory content. Furthermore, this content-specific interaction occurred for features that were relevant to the memory task but not for irrelevant features of the same object or for once-remembered objects that could be forgotten. Finally, memory-related distractors attracted more eye movements but did not result in longer fixations. The results demonstrate memory-driven attentional capture on the basis of content-specific representations.  相似文献   
989.
Using a slot machine simulation, our laboratory has found that participants, given the opportunity not to gamble and to keep the money they have been staked, almost always choose to play the simulation. In this study, the authors investigated whether increasing the salience of the money for which participants played or increasing the response effort required to gamble the money would decrease gambling. In Experiment 1, participants in different groups were told about, were shown, or held the dollars 10 they were to be staked to play the simulation. Results showed that participants who held the money prior to gambling played fewer trials and bet less money than participants in other groups. In Experiment 2, participants in different groups were staked with dollars 5 in nickels, quarters, or their choice of nickels or quarters. Results showed that the participants staked with nickels ultimately gambled a similar amount of money as did participants staked with quarters. They did so by playing the simulation more times than the other participants. Participants staked with nickels did, however, end the session with the most money. Findings suggest ways that gambling and gambling losses can be lessened.  相似文献   
990.
A hyper-emotion theory of psychological illnesses is presented. It postulates that these illnesses have an onset in which a cognitive evaluation initiates a sequence of unconscious transitions yielding a basic emotion. This emotion is appropriate for the situation but inappropriate in its intensity. Whenever it recurs, it leads individuals to a focus on the precipitating situation and to characteristic patterns of inference that can bolster the illness. Individuals with a propensity to psychological illness accordingly reason better than more robust individuals, but only on topics relevant to their illness. The theory is assessed in the light of previous research, a small epidemiological study of patients, and 3 empirical studies.  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