全文获取类型
收费全文 | 10262篇 |
免费 | 484篇 |
国内免费 | 2篇 |
出版年
2023年 | 89篇 |
2022年 | 74篇 |
2021年 | 115篇 |
2020年 | 218篇 |
2019年 | 255篇 |
2018年 | 356篇 |
2017年 | 354篇 |
2016年 | 353篇 |
2015年 | 271篇 |
2014年 | 300篇 |
2013年 | 981篇 |
2012年 | 487篇 |
2011年 | 499篇 |
2010年 | 303篇 |
2009年 | 315篇 |
2008年 | 385篇 |
2007年 | 407篇 |
2006年 | 332篇 |
2005年 | 278篇 |
2004年 | 272篇 |
2003年 | 250篇 |
2002年 | 218篇 |
2001年 | 209篇 |
2000年 | 153篇 |
1999年 | 138篇 |
1998年 | 103篇 |
1997年 | 99篇 |
1996年 | 106篇 |
1995年 | 74篇 |
1994年 | 92篇 |
1993年 | 87篇 |
1992年 | 104篇 |
1991年 | 115篇 |
1990年 | 107篇 |
1989年 | 83篇 |
1988年 | 95篇 |
1987年 | 93篇 |
1986年 | 77篇 |
1985年 | 107篇 |
1984年 | 102篇 |
1982年 | 100篇 |
1980年 | 75篇 |
1979年 | 97篇 |
1978年 | 100篇 |
1977年 | 96篇 |
1976年 | 85篇 |
1975年 | 98篇 |
1974年 | 86篇 |
1973年 | 86篇 |
1971年 | 73篇 |
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
1.
The problem of representing the spatial structure of images, which arises in visual object processing, is commonly described using terminology borrowed from propositional theories of cognition, notably, the concept of compositionality. The classical propositional stance mandates representations composed of symbols, which stand for atomic or composite entities and enter into arbitrarily nested relationships. We argue that the main desiderata of a representational system—productivity and systematicity—can (indeed, for a number of reasons, should) be achieved without recourse to the classical, proposition‐like compositionality. We show how this can be done, by describing a systematic and productive model of the representation of visual structure, which relies on static rather than dynamic binding and uses coarsely coded rather than atomic shape primitives. 相似文献
2.
W Rakowski C E Dube B H Marcus J O Prochaska W F Velicer D B Abrams 《Health psychology》1992,11(2):111-118
We investigated motivational and cognitive processes of behavior change with respect to mammography screening. One hundred forty-two women (ages 40 and older) recruited from three worksites answered a 41-item questionnaire consisting of statements based on constructs from the transtheoretical model of behavior change. Principal-components analysis identified two factors: a six-item component representing positive perceptions of mammography (Pros) and a six-item component representing avoidance of mammography (Cons). Analysis of variance showed that Pros, Cons, and a derived Decisional Balance measure (Pros minus Cons) were associated with stage of mammography adoption. Results are consistent with applications of the model to smoking cessation. The model is also discussed as it relates to other theories of behavior change and as a general strategy for analyzing perceptual data pertinent to health-related actions and intentions for behavioral change. 相似文献
3.
4.
5.
6.
7.
8.
Gavin N. Rackoff Daniel W. Lagoni Mia F. Shoshany Nasreen A. Moursi Laura Hennefield 《The British journal of developmental psychology》2022,40(1):170-186
By roughly 6 years of age, children acquire the stereotype that men are more competent than women in science, technology, engineering, and mathematics (STEM), potentially leading to greater trust in scientific information provided by men. This study tested whether 3- to 8-year-old children differentially endorsed conflicting information about science and toys presented by male and female informants depicted as a ‘man’ and ‘woman’ (Exp1) or ‘scientists’ (Exp2). Children were expected to endorse toy testimony from gender-matched informants; thus, the key question concerned endorsement of science testimony. In Exp1 (N = 149), boys and girls showed a same-gender informant preference for toy testimony; however, girls endorsed the male informant's testimony more for science than for toys – but only when tested by a male experimenter. In Exp2 (N = 264), boys and girls showed a same-gender preference, irrespective of content. Findings suggest that STEM-related gender stereotypes might lead girls to trust scientific information presented by men over women in certain contexts. 相似文献
9.
10.
Mark J. Landau Daniel Sullivan Laura A. King 《Social and Personality Psychology Compass》2010,4(10):906-917
Drawing on terror management theory (TMT), we discuss the psychological motivations that shape personality at two levels: the characteristically human personality common to us all and the individual differences that distinguish some people from others. TMT posits that the motivation to protect the self against deep-rooted fears about mortality drives people to maintain meaningful, reliable conceptions of reality and positive evaluations of themselves, two broad tendencies that form the foundation of every person’s personality. We review studies showing that mortality reminders increase efforts to bolster cultural sources of meaning and self-esteem in similar ways across individuals and cultures. TMT also posits that individual differences in personality partly reflect the different sources of meaning and self-esteem that people invest in to assuage mortality fears. We review evidence that individual differences predict the degree and direction of people’s defensive responses to mortality reminders. Directions for future research are discussed. 相似文献