全文获取类型
收费全文 | 21860篇 |
免费 | 922篇 |
国内免费 | 14篇 |
专业分类
22796篇 |
出版年
2020年 | 253篇 |
2019年 | 251篇 |
2018年 | 422篇 |
2017年 | 369篇 |
2016年 | 390篇 |
2015年 | 249篇 |
2014年 | 370篇 |
2013年 | 1576篇 |
2012年 | 626篇 |
2011年 | 692篇 |
2010年 | 372篇 |
2009年 | 449篇 |
2008年 | 592篇 |
2007年 | 600篇 |
2006年 | 551篇 |
2005年 | 486篇 |
2004年 | 466篇 |
2003年 | 452篇 |
2002年 | 417篇 |
2001年 | 799篇 |
2000年 | 798篇 |
1999年 | 587篇 |
1998年 | 235篇 |
1997年 | 213篇 |
1992年 | 485篇 |
1991年 | 425篇 |
1990年 | 489篇 |
1989年 | 411篇 |
1988年 | 390篇 |
1987年 | 368篇 |
1986年 | 389篇 |
1985年 | 444篇 |
1984年 | 341篇 |
1983年 | 285篇 |
1982年 | 219篇 |
1981年 | 193篇 |
1979年 | 323篇 |
1978年 | 260篇 |
1977年 | 206篇 |
1976年 | 202篇 |
1975年 | 300篇 |
1974年 | 347篇 |
1973年 | 352篇 |
1972年 | 275篇 |
1971年 | 244篇 |
1970年 | 209篇 |
1969年 | 231篇 |
1968年 | 290篇 |
1967年 | 252篇 |
1966年 | 274篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
Two shapes of either the same or different color will seem to be in smooth apparent motion with like-colored mates, at proper conditions of flash timing and spacing. An experiment is reported in which the condition was tested for unlike-colored pairs, for example red-green alternated with green-red. The question of interest was how the visual system would resolve the disparity of color. An 'intelligent' solution would rotate the shapes in three dimensions. Like-colored and unlike-colored parts were found to move and transform similarly, however, the resolution being dependent more upon timing than upon color. The motion of intelligence as it might be applied to vision is discussed in light of these results. 相似文献
2.
3.
La littérature portant sur la culture des organisations souffre d'un manque manifeste d'enquêtes extensives débouchant sur des études comparatives. Afin de rendre plus comparables les cultures organisationnelles, nous proposons une définition et une série de dimensions. La culture organisationnelle renverrait aux perceptions communes des pratiques de travail dans le cadre des unités constitutives des organisations. A l'examen d'études empiriques, les cinq dimensions suivantes nous sont apparues: autonomie, orientation externe, coordination interdépartementale, orientation vers les ressources humaines et orientation vers le développement. L'utilisation de cette définition et de ces dimensions générales devrait faciliter la comparaison des cultures organisationnelles et l'accumulation de résultats.
Within the body of organisation culture literature, there is a conspicuous absence of large-scale studies reporting on comparative studies. In order to increase comparability of organisational cultures we propose a definition and a set of dimensions. Organisational culture is defined as shared perceptions of organisational work practices within organisational units. On the basis of empirical studies we discerned the following five dimensions: autonomy, external orientation, interdepartmental coordination, human resource orientation, and improvement orientation. Use of this definition and a set of such generic dimensions would facilitate the comparison of organisational cultures and the accumulation of research findings. 相似文献
Within the body of organisation culture literature, there is a conspicuous absence of large-scale studies reporting on comparative studies. In order to increase comparability of organisational cultures we propose a definition and a set of dimensions. Organisational culture is defined as shared perceptions of organisational work practices within organisational units. On the basis of empirical studies we discerned the following five dimensions: autonomy, external orientation, interdepartmental coordination, human resource orientation, and improvement orientation. Use of this definition and a set of such generic dimensions would facilitate the comparison of organisational cultures and the accumulation of research findings. 相似文献
4.
5.
M H Antoni J M Lehman K M Kilbourn A E Boyers J L Culver S M Alferi S E Yount B A McGregor P L Arena S D Harris A A Price C S Carver 《Health psychology》2001,20(1):20-32
The authors tested effects of a 10-week group cognitive-behavioral stress management intervention among 100 women newly treated for Stage 0-II breast cancer. The intervention reduced prevalence of moderate depression (which remained relatively stable in the control condition) but did not affect other measures of emotional distress. The intervention also increased participants' reports that having breast cancer had made positive contributions to their lives, and it increased generalized optimism. Both remained significantly elevated at a 3-month follow-up of the intervention. Further analysis revealed that the intervention had its greatest impact on these 2 variables among women who were lowest in optimism at baseline. Discussion centers on the importance of examining positive responses to traumatic events--growth, appreciation of life, shift in priorities, and positive affect-as well as negative responses. 相似文献
6.
7.
8.
9.
Simon P. Liversedge Kevin B. Paterson Emma L. Clayes 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2002,55(1):225-240
We report an eye movement experiment investigating the influence of the focus operator only on syntactic processing of "long" relative clause sentences. Paterson, Liversedge, and Underwood (1999) found that readers were garden pathed by "short" reduced relative clause sentences containing the focus operator only . They argued that due to thematic differences between "short" and "long" relative clause sentences, garden path effect might not occur when "long" reduced relative clause sentences are read. Eye-tracking data show that garden path effects found during initial processing of the disambiguating verb of "long" reduced sentences without only were absent or delayed in the case of counterparts with only . We discuss our results in terms of current theories of sentence processing. 相似文献
10.