全文获取类型
收费全文 | 7092篇 |
免费 | 299篇 |
国内免费 | 2篇 |
出版年
2021年 | 87篇 |
2020年 | 129篇 |
2019年 | 110篇 |
2018年 | 174篇 |
2017年 | 164篇 |
2016年 | 209篇 |
2015年 | 156篇 |
2014年 | 192篇 |
2013年 | 671篇 |
2012年 | 334篇 |
2011年 | 341篇 |
2010年 | 219篇 |
2009年 | 201篇 |
2008年 | 294篇 |
2007年 | 304篇 |
2006年 | 252篇 |
2005年 | 268篇 |
2004年 | 257篇 |
2003年 | 237篇 |
2002年 | 245篇 |
2001年 | 123篇 |
2000年 | 87篇 |
1999年 | 119篇 |
1998年 | 105篇 |
1997年 | 105篇 |
1996年 | 87篇 |
1995年 | 81篇 |
1994年 | 76篇 |
1993年 | 80篇 |
1992年 | 89篇 |
1991年 | 81篇 |
1990年 | 69篇 |
1989年 | 51篇 |
1988年 | 50篇 |
1987年 | 60篇 |
1986年 | 64篇 |
1985年 | 77篇 |
1984年 | 69篇 |
1983年 | 77篇 |
1982年 | 63篇 |
1981年 | 76篇 |
1980年 | 69篇 |
1979年 | 62篇 |
1978年 | 69篇 |
1977年 | 71篇 |
1976年 | 64篇 |
1975年 | 54篇 |
1974年 | 61篇 |
1968年 | 40篇 |
1966年 | 41篇 |
排序方式: 共有7393条查询结果,搜索用时 31 毫秒
41.
Two groups of singers (n = 12,13) and a group of nonsingers (n = 12) each produced the national anthem by (1) speaking and (2) singing the words and by (3) humming the melody. Regional cerebral blood flow (rCBF) was measured at rest and during each phonation task from seven areas in each hemisphere by the 133Xe-inhalation method. Intrahemisphere, interhemisphere, and global rCBF were generally similar across phonation tasks and did not yield appreciable differences among the nonsingers and the singers. 相似文献
42.
Audrey Thomas McCluskey 《Sex roles》1989,21(1-2):113-126
Traditional definitions of feminism do not hold for some black women like Mary McLeod Bethune who had to overcome the dual burdens of race and sex in order to build a school for black girls in the racially tense South during the early part of the 20th century. Ever a pragmatist, Bethune seized the opportunity offered by the rhetoric of domesticity and certain stereotypical views of blacks in order to advance the higher cause of uplift and self-sufficiency for black women through education. 相似文献
43.
HyperCard (Atkinson, 1987) is a new development environment for the Macintosh that shows promise for use in psychological research and testing. In this paper, we discuss the development of HyperCard stackware with which a block-design task similar to that of the Wechsler Adult Intelligence Scale-Revised (WAIS-R) can be administered. The reliability and validity of the computerized block-design task was evaluated by administering both the computerized task and the WAIS-R subtest to college undergraduates. Results indicated that the computerized task’s reliability compared favorably with that of the WAIS-R subtest. Validity coefficients were equivocal; although an elapsed-time measure showed moderate correlation between the tasks, the numbers of designs correctly completed in each condition were not significantly correlated. 相似文献
44.
Jerry M. Lewis J. M. Rabbie Thomas Berg Michael Argyle Karin Aronsson Roger Ingham Neil Frude A. M. Munton Duncan Cramer John Shotter Ray Holland Nobleza Asuncion-Lande Ray Crozier Candida Peterson Chris Spencer Victor J. Callan Jack Martin N. L. Reinsch Anthony Ryle David Canter Jill Robson H. R. Beech Duncan Moss David Fontana Tom Richards 《Current psychology (New Brunswick, N.J.)》1989,8(1):49-87
45.
ABSTRACT Lamiell's (1981) “idiothetic” index has been praised for raising significant conceptual and methodological issues, but Paunonen and Jackson (1986a) indicated that it might not provide any unique information The current study demonstrates that the unique value of the idiothetic index relative to the ipsative, normative, and normative-ipsative indices is dependent in part upon what information is collected and how it is analyzed Subjects completed inventories on three occasions that assessed seven dispositional variables Interindividual analyses indicated a high correlation between the idiothetic method and two of the other models, whereas intra-individual analyses indicated a much lower degree of correlation Intra-individual analyses indicated that the idiothetic method produced higher temporal stability coefficients The idiothetic index provides information not contained in a normative index and it may be more useful to personality researchers for the assessment of temporal stability and for the assessment of traits with extreme base rates 相似文献
46.
Thomas T. Hewett 《Behavior research methods》1985,17(2):339-344
An electronic spreadsheet simulator can be used to enable students to conduct simulated microelectrode recording experiments. In addition, it can be used both to let students explore the operation of models of hypothetical neural networks and to let them design and develop their own neural models. 相似文献
47.
48.
49.
50.
Thomas R. Alley 《Synthese》1985,65(3):411-444
The concept of an ecological niche (econiche) has been used in a variety of ways, some of which are incompatible with a relational or functional interpretation of the term. This essay seeks to standardize usage by limiting the concept to functional relations between organisms and their surroundings, and to revise the concept to include epistemic relations. For most organisms, epistemics are a vital aspect of their functional relationships to their surroundings and, hence, a major determinant of their econiche. Rejecting the traditional dualism of organism and environment, an econiche is defined as the reciprocal (dual) of a functionally specified class of organisms (FSTU). From this perspective, an econiche necessarily implies a certain type of organism, and a class of functionally similar organisms implies a special econiche.The econiche concept is also discussed in relation to other ecological terms that reflect the distributional patterns of organisms, such as habitat, and the concept of an empty niche is criticized.Special thanks are due to Michael Turvery for his part in many stimulating discussions of some of the problems and concepts addressed in this paper. I am also grateful to him and to Claudia Carello, Tim Johnston, Bill Mace, Bernard Patten, Ed Reed, Robert E. Shaw, Bill Warren, and an anonymous reviewer for their comments on earlier drafts of this paper. 相似文献