全文获取类型
收费全文 | 38677篇 |
免费 | 834篇 |
国内免费 | 4篇 |
出版年
2020年 | 238篇 |
2019年 | 286篇 |
2018年 | 3766篇 |
2017年 | 3122篇 |
2016年 | 2612篇 |
2015年 | 516篇 |
2014年 | 466篇 |
2013年 | 1758篇 |
2012年 | 1177篇 |
2011年 | 2966篇 |
2010年 | 2870篇 |
2009年 | 1820篇 |
2008年 | 2240篇 |
2007年 | 2629篇 |
2006年 | 547篇 |
2005年 | 661篇 |
2004年 | 609篇 |
2003年 | 514篇 |
2002年 | 533篇 |
2001年 | 543篇 |
2000年 | 534篇 |
1999年 | 405篇 |
1998年 | 257篇 |
1997年 | 217篇 |
1996年 | 211篇 |
1995年 | 221篇 |
1994年 | 189篇 |
1993年 | 187篇 |
1992年 | 314篇 |
1991年 | 313篇 |
1990年 | 294篇 |
1989年 | 283篇 |
1988年 | 268篇 |
1987年 | 247篇 |
1986年 | 238篇 |
1985年 | 254篇 |
1984年 | 259篇 |
1983年 | 233篇 |
1982年 | 226篇 |
1981年 | 229篇 |
1980年 | 189篇 |
1979年 | 269篇 |
1978年 | 217篇 |
1977年 | 207篇 |
1976年 | 193篇 |
1975年 | 237篇 |
1974年 | 261篇 |
1973年 | 244篇 |
1972年 | 214篇 |
1968年 | 222篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
21.
22.
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
23.
24.
In this paper, we organize past and present theories and models of creativity by using a new conceptual framework—the creativity matrix—with the aim of highlighting the dimensions of creativity we know a lot about and those we tend to either ignore or find difficult to study. This matrix is formed by bringing together a developmental model of creativity (the 4 C's) and a structural one (the 5 A's). We start by briefly describing these two conceptual frameworks, and then, we proceed to exploring the matrix itself by describing how the 5 A's are dynamically organized at each “level” of the 4 C's. Importantly, our overview of the matrix is informed by existing models and concepts that address one of more of the C's and the A's. This gives us a unique opportunity to take stock of what has been studied so far and, toward the end, consider new avenues for the development of theory and research agendas within creativity studies. 相似文献
25.
26.
27.
Using both cross-sectional and longitudinal data spanning a decade, this article analyzes how dietary behavior of household children and adults (N = 576 households) was affected by the Stanford Five-City Project (FCP). Tests of a three-part, cumulative model of bidirectional influences within the family, which conceptualizes household members as sources of influence on each other and subject to influence by an external agent, were supported. Children and adults were influenced by both each other and the FCP campaign in changing and maintaining health behaviors. This article demonstrates that public health campaigns can be made more effective if they conceptualize both children and adults as potential sources of influence. The long-term effectiveness of such efforts can be enhanced by encouraging families, as opposed to individuals, to change health behaviors. 相似文献
28.
29.
30.