全文获取类型
收费全文 | 19008篇 |
免费 | 1049篇 |
国内免费 | 15篇 |
专业分类
20072篇 |
出版年
2020年 | 318篇 |
2019年 | 278篇 |
2018年 | 389篇 |
2017年 | 446篇 |
2016年 | 466篇 |
2015年 | 362篇 |
2014年 | 400篇 |
2013年 | 1710篇 |
2012年 | 640篇 |
2011年 | 690篇 |
2010年 | 438篇 |
2009年 | 452篇 |
2008年 | 537篇 |
2007年 | 511篇 |
2006年 | 456篇 |
2005年 | 374篇 |
2004年 | 376篇 |
2003年 | 359篇 |
2002年 | 358篇 |
2001年 | 731篇 |
2000年 | 725篇 |
1999年 | 494篇 |
1998年 | 206篇 |
1997年 | 193篇 |
1996年 | 191篇 |
1995年 | 174篇 |
1994年 | 155篇 |
1993年 | 171篇 |
1992年 | 399篇 |
1991年 | 372篇 |
1990年 | 386篇 |
1989年 | 354篇 |
1988年 | 340篇 |
1987年 | 308篇 |
1986年 | 338篇 |
1985年 | 321篇 |
1984年 | 247篇 |
1983年 | 220篇 |
1979年 | 208篇 |
1978年 | 188篇 |
1975年 | 195篇 |
1974年 | 251篇 |
1973年 | 206篇 |
1972年 | 207篇 |
1971年 | 172篇 |
1970年 | 154篇 |
1969年 | 203篇 |
1968年 | 204篇 |
1967年 | 163篇 |
1966年 | 189篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
91.
92.
Exposed eye area (EEA) was measured in photographs of Indian adults who modeled six emotions--happiness, sadness, fear, anger, surprise, and disgust--as well as a neutral expression. The data were analyzed with a 2 x 6 (Eyes x Emotions) factorial analysis of covariance (ANCOVA). EEA for neutral expression was used as the covariate measure. The EEAs of the two eyes did not differ significantly during the expression of emotion. The EEAs for fear and surprise were significantly larger, and the EEA for disgust was significantly smaller than those for either other emotions or neutral expression. 相似文献
93.
Employers of human resource professionals described their hiring practices. This information is especially useful for counselors and for developing curricula for nonbusiness majors interested in human resource careers. 相似文献
94.
To integrate the 5-dimensional simple-structure and circumplex models of personality, the Abridged Big Five Dimensional Circumplex (AB5C) taxonomy of personality traits was developed, consisting of the 10 circumplexes that can be formed by pitting each of the Big Five factors against one another. The model maps facets of the Big Five dimensions as blends of 2 factors. An application to data consisting of 636 self-ratings and peer ratings on 540 personality trait adjectives yielded 34 well-defined facets out of a possible 45. The AB5C solution is compared with simple-structure and lower dimensional circumplex solutions, and its integrative and corrective potential are discussed, as well as its limitations. 相似文献
95.
R C Kessler K S Kendler A Heath M C Neale L J Eaves 《Journal of personality and social psychology》1992,62(2):257-272
A survey of 821 same-sex female twin pairs from a population-based registry assessed 8 dimensions of social support and social integration. Twin analyses documented significant common environmental influences on 5 of these 8 measures and significant genetic influences on 5 of the 8. A decomposition of the multiplicative association between support and a measure of stressful life experiences in predicting depressed mood--an association typically interpreted as providing evidence for a stress-buffering effect of social support--shows clearly that it is the environmental and genetic factors that cause support, rather than support itself, that buffer the effects of stress on mood in most cases. We discuss the implications of this result for future research on the relationship between social support and psychopathology. 相似文献
96.
The authors examined characteristics of Finnish mothers (N = 924) who use hostile child-rearing practices (i.e., they ignore the child, are punitive and irritable, and perceive the child as a burden), practices that have been shown (R?ikk?nen & Keltikangas-J?rvinen, 1992) to predispose children to Type A behavior. The results of this study indicate that two factors--Type A behavior in the mothers and the mothers' sociodemographic background (low occupational status, low educational level and young age)--increase the probability of the mothers' treating their children in a hostile manner. Also, the mothers of boys in this study reported more hostile child-rearing practices than the mothers of girls did. 相似文献
97.
Three experiments were conducted to discover factors mediating adults' perceptions of male and female infants. In the first experiment, college students were shown 30-s videotapes of four male and four female babies, each of whom was randomly labeled with a male or a female name. Infants labeled as male were perceived as significantly more masculine and stronger than those labeled as female. Discriminant analyses revealed that both rated masculinity and the combination of ratings on male stereotyped traits differentiated infants labeled as male or female. Analyses of real gender revealed that boys were rated as less sensitive and stronger than girls. Discriminant analyses suggested that the combination of less sensitive, more of a problem, more mature, and more playful best differentiated real males from real females. In Experiment 2, the findings of Experiment 1 were confirmed with a sample of mothers of young infants. In Experiment 3 college students' judgments of the sex of the eight babies were correctly predicted from the sensitivity ratings of these babies in Experiment 1. It appears that there is a complex of cues from which adults make judgments of infants' gender and inferences about their characteristics: Boys may appear stronger, more playful, and more of a problem, and girls seem to look more sensitive. Implications for further studies of gender labeling and for sex typing are discussed. 相似文献
98.
99.
In two experiments, key pecking of pigeons was maintained by a variable-interval 180-s schedule of food presentation. Conjointly, a second schedule delivered response-dependent electric shock. In the first experiment, shocks were presented according to either a variable-interval or a nondifferential interval-percentile schedule. The variable-interval shock schedule differentially delivered shocks following long interresponse times. Although the nondifferential shock schedules delivered shocks less differentially with respect to interresponse times, the two shock schedules equally reduced the relative frequency of long interresponse times. The second experiment differentially shocked long or short interresponse times in different conditions, with resulting decreases in the relative frequency of the targeted interresponse times. These experiments highlight the importance of selecting the appropriate level of analysis for the interaction of behavior and environment. Orderly relations present at one level of analysis (e.g., interresponse times) may not be revealed at other levels of analysis (e.g., overall response rate). 相似文献
100.
Alan D. Goldberg PhD 《Journal of religion and health》1992,31(2):107-111
Mental health practitioners continually struggle to find a simple framework for describing the characteristics of the psychologically healthy individual. Hillel's often quoted saying provides relevant insight into the healthy personality and a convenient framework against which to examine psychological health. 相似文献