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   942篇
  免费   63篇
  1005篇
  2023年   13篇
  2022年   11篇
  2021年   17篇
  2020年   38篇
  2019年   34篇
  2018年   53篇
  2017年   51篇
  2016年   56篇
  2015年   22篇
  2014年   42篇
  2013年   103篇
  2012年   49篇
  2011年   38篇
  2010年   32篇
  2009年   31篇
  2008年   43篇
  2007年   31篇
  2006年   30篇
  2005年   28篇
  2004年   23篇
  2003年   22篇
  2002年   32篇
  2001年   15篇
  2000年   9篇
  1999年   11篇
  1998年   13篇
  1997年   5篇
  1996年   9篇
  1995年   10篇
  1994年   10篇
  1993年   5篇
  1992年   10篇
  1991年   10篇
  1990年   9篇
  1989年   7篇
  1988年   4篇
  1987年   9篇
  1986年   5篇
  1985年   11篇
  1984年   3篇
  1978年   4篇
  1973年   3篇
  1970年   2篇
  1969年   2篇
  1968年   4篇
  1967年   3篇
  1966年   2篇
  1963年   3篇
  1939年   3篇
  1937年   4篇
排序方式: 共有1005条查询结果,搜索用时 46 毫秒
11.
Previously reported experiments demonstrated changes in the relation of visual direction to retinal locus for stimulation during voluntary saccades as compared to this relation before saccade initiation. The quantitative features of these results led to the prediction, confirmed in the present experiments, that there are shifts in visual direction for stimulation presented before the saccade itself. In the present report, monotonically increasing shifts were mapped with stimuli presented as early as 240 msec before the saccade up to the saccade itself. Such shifts cannot be accounted for readily by “inflowing” processes, and while “outflowing” processes seem to be implicated, their quantitative characteristics would need to be considerably different from those required by classical outflow theories.  相似文献   
12.
This research examines the extent to which meta-analysis of leadership research fulfills its promise to bring order into a body of literature characterized by inconsistent, equivocal findings. Manual and computer searches yielded 14 meta-analyses which clustered around the following leadership topics: (1) theories of leadership (n=7); (2) leadership in small groups (n=2); and gender differences in leadership (n=5). In all three categories, the results of the meta-analyses were as inconsistent as those of primary research. Differences in the types of meta-analystic techniques used, differences in judgment calls including decisions defining the research domain, establishing criteria for inclusion of studies, coding characteristics and selection of potential moderators are, at least in part, responsible for the differences observed. In addition, areas of leadership research which have produced sizable bodies of empirical studies such as the effects of power on leadership outcomes, leader effectiveness as well as the effects of leadership competencies and leadership contexts on leader-follower relations have not been subjected to statistical aggregation and summarization of results across studies. Recommendations for improving the quality of meta-analytic research on leadership are offered.  相似文献   
13.
The relationship of appraisal and coping to chronic illness adjustment   总被引:7,自引:0,他引:7  
There is evidence that adaptation to chronic illness may be affected by psychological factors, especially how patients appraise and cope with the stress of their illness. The purpose of the present study was to examine the relationship of stress appraisal and coping responses to multiple behavioral indices of illness adjustment among patients with diverse chronic medical conditions. One hundred and one patients admitted to a multidisciplinary medicine/psychiatry unit completed measures of functional impairment, depression, symptom severity, and the Ways of Coping Checklist--Revised. Hierarchical regression analyses indicated that emotion-focused coping was positively related to poor psychosocial adjustment and depression after controlling for physician rated disease severity. Appraising chronic illness as holding one back predicted greater emotion-focused coping responses and poorer adjustment to illness. The use of problem-focused coping strategies was generally unrelated to illness adjustment. These findings suggest the presence of an emotion-focused coping triad consisting of wishful thinking, self blame, and avoidance, all of which appear to be maladaptive strategies when coping with chronic medical conditions. Implications for coping skills training and the need for longitudinal research is discussed.  相似文献   
14.
A theory of right action is implicit in Hume's delineation of the virtues. It gives qualified priority to 'rules of justice' as Hume's remarks on 'that species of utility which attends this virtue' require. It is a useful actual-rule, not an ideal possible-rule, purely utilitarian theory that discounts rules of justice in 'extraordinary cases', has a problem when rules conflict, and invites the question 'Why not hark directly to the supreme law of utility in every case?'. It does not reflect contractarian considerations of mutuality of interests evident in Hume's texts, which while sometimes relevant to what is reasonable, are in his view never also relevant to what is moral.  相似文献   
15.
This article describes an extensive audit of the work of government agencies against business crime in Sweden, as an example of a performance evaluation by an auditing institution. Business crime was shown to be a major and growing social problem. Manifold measures are required, and these must be directed and coordinated by the Government and the Riksdag. The cooperation of the commercial sector is also needed. The investigation was made by the Parliamentary Auditors of Sweden, which is the smaller of the two auditing institutions in the country. The method used in the investigation can be described as an “interactive” one. The intention was to create a thorough understanding of the issue and a shared approach to the problem. This aim seems to have been achieved to a great extent. Karin Rudberg is one of the audit directors at the Office of the Parliamentary Auditors of Sweden. She is an eonomist with experience in investigations of many different fields, such as restructuring government agencies, evaluation of energy research policies, and analyses of the Swedish industrial structure and labor market.  相似文献   
16.
Attentional biases for threat stimuli were assessed in high and low trait anxious subjects (n = 66) using a probe detection task. To examine the effects of trait anxiety and situational stressors, each subject was tested three times: Under no stress, laboratory-induced stress, and examination-induced stress. To evaluate the role of awareness, half the word stimuli were presented very briefly (14 msec) and masked, and the other half were presented for 500 msec without a mask. Results showed that high trait anxious subjects under exam stress showed an attentional bias towards unmasked threat stimuli compared with low trait subjects. This effect was not found under lab-induced stress, suggesting that the attentional bias for unmasked threat in high trait subjects may be a function of a prolonged stressor, rather than a transient increase in state anxiety. The results from the masked exposure condition were not predicted; high trait anxious subjects shifted attention towards the spatial location of threat words despite lack of awareness of their lexical content, but this bias was only apparent in the no-stress condition. The results are discussed in relation to recent cognitive theories of anxiety.  相似文献   
17.
Musically trained and untrained subjects (N=30) were asked to synchronize their finger tapping with stimuli in auditory patterns. Each pattern comprised six successive tonal stimuli of the same duration, the first of which was accented by a different frequency. The duration of interstimulus onset intervals (ISIs) gradually increased or decreased in constant steps toward the end of the patterns. Four values of such steps were used in different trials: 20, 30, 45, and 60 msec. Various time-control mechanisms are hypothesized as being simultaneously responsible for subjects’ incorrect reproduction of the internal temporal ratios of the stimulus patterns. The mechanism of assimilation (of a central tendency) led subjects to enforce a regular (isochronous) structure on the patterns. The influence of other time-control mechanisms (distinction, subjective expression of an accent, sequential transfer) was expressed mainly in differences between intertap onset intervals (ITIs) and the corresponding ISIs at the beginning of the patterns. The duration of the first two ITIs was in the majority of the trials in an inverse ratio to the ratio of the respective ISIs. The distortions resulting from the timing mechanisms concerned were more pronounced in the performance of nonmusicians than in that of musicians.  相似文献   
18.
30 elderly subjects were matched with 30 young subjects and tested on a kinesthetic short-term memory task which required the replication of criterion moves after a variable retention interval under conditions of either rest, differing interpolated movement tasks, or mental activity. A visual control condition was used. Differing interference and temporal decrements were observed. Both old and young subjects differed significantly between sighted and blindfold conditions; however, there was no difference between the performance of the old and the young in the blindfold (kinesthetic) condition. These findings were discussed with respect to practical implications for the retraining of old subjects on certain motor tasks.  相似文献   
19.
20.
It is plausible that Newcomb problems in which causal maximizers and evidential maximizers would do different things would not be possible for ideal maximizers who are attentive to metatickles. An objection to Eells's first argument for this makes welcome a second. Against it I argue that even ideal evidential and causal maximizers would do different things in some non-dominance Newcomb problems; and that they would hope for different things in some third-person and non-action problems, which is relevant if a good theory of rational choices of acts should fit smoothly into a good theory of rational desires for facts.This paper elaborates on Section V of Sobel. forthcoming.  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