全文获取类型
收费全文 | 28819篇 |
免费 | 1036篇 |
国内免费 | 13篇 |
专业分类
29868篇 |
出版年
2020年 | 325篇 |
2019年 | 311篇 |
2018年 | 487篇 |
2017年 | 507篇 |
2016年 | 555篇 |
2015年 | 376篇 |
2014年 | 477篇 |
2013年 | 2271篇 |
2012年 | 908篇 |
2011年 | 969篇 |
2010年 | 608篇 |
2009年 | 574篇 |
2008年 | 830篇 |
2007年 | 823篇 |
2006年 | 735篇 |
2005年 | 702篇 |
2004年 | 662篇 |
2003年 | 617篇 |
2002年 | 674篇 |
2001年 | 833篇 |
2000年 | 813篇 |
1999年 | 661篇 |
1998年 | 350篇 |
1997年 | 305篇 |
1992年 | 530篇 |
1991年 | 480篇 |
1990年 | 502篇 |
1989年 | 458篇 |
1988年 | 440篇 |
1987年 | 451篇 |
1986年 | 457篇 |
1985年 | 487篇 |
1984年 | 389篇 |
1983年 | 358篇 |
1982年 | 289篇 |
1981年 | 282篇 |
1979年 | 442篇 |
1978年 | 344篇 |
1977年 | 322篇 |
1976年 | 284篇 |
1975年 | 391篇 |
1974年 | 425篇 |
1973年 | 385篇 |
1972年 | 351篇 |
1971年 | 318篇 |
1970年 | 284篇 |
1969年 | 345篇 |
1968年 | 394篇 |
1967年 | 344篇 |
1966年 | 363篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
Thomas A Wills Velma McBride Murry Gene H Brody Frederick X Gibbons Meg Gerrard Carmella Walker Michael G Ainette 《Health psychology》2007,26(1):50-59
OBJECTIVE: To test a theoretical model of how ethnic pride and self-control are related to risk and protective factors. DESIGN: A community sample of 670 African American youth (mean age = 11.2 years) were interviewed in households. MAIN OUTCOME MEASURES: Measures of cigarette smoking, alcohol use, and sexual behavior (lifetime to past month). RESULTS: Structural modeling analyses indicated parenting was related to self-control and self-esteem, and racial socialization was related to ethnic pride. Self-control and self-esteem variables were related to levels of deviance-prone attitudes and to perceptions of engagers in, or abstainers from, substance use and sexual behavior. The proximal factors (behavioral willingness, resistance efficacy, and peer behavior) had substantial relations to the criterion variables. Participant gender and parental education also had several paths in the model. Results were generally similar for the 2 outcome behaviors. CONCLUSIONS: In this population, self-esteem and self-control are related to parenting approaches and have pathways to attitudes and social perceptions that are significant factors for predisposing to, or protecting against, early involvement in substance use and sexual behavior. 相似文献
3.
4.
Subjects in five experiments read nine-digit memory lists from a cathode ray tube for immediate recall. Reading aloud always produced a localized and reliable advantage for the last item, compared to reading silently. Two experiments on whispered and mouthed lists, with or without simultaneous broadband noise, falsified expectations derived from the theory of precategorical acoustic storage. Three additional experiments showed no enhancement of recency in the silent conditions when the digits were drawn or spelled gradually on the screen, a result that is inconsistent with the changing-state hypothesis. The classic auditory-visual modality effect is large and reliable, but still poorly understood. 相似文献
5.
Henning Gibbons Thomas H. Rammsayer 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2004,57(1):61-86
A series of four spatial localization experiments is reported that examined the effects of display duration and presentation mode on positive and negative priming using an attended-repetition and an ignored-repetition paradigm, respectively. Experiment 1 showed larger positive priming with response-dependent than with 150 ms display durations while negative priming remained unaffected. Experiments 2-4 were performed to further elucidate the effects of prime-probe durations. Data suggest largely independent effects of prime and probe duration on priming effects. Manipulation of prime duration affected facilitation due to repetition of the prime distractor location as well as inhibitory effects associated with ignored repetition. Furthermore, anticipated probe duration modulated the effectiveness of inhibition of return. Findings are discussed within a framework proposing two major components of priming effects—a stimulus-driven or automatic component, and a strategic component related to the participant's expectations towards the probe. 相似文献
6.
Marcellus M Merritt Gary G Bennett Redford B Williams Christopher L Edwards John J Sollers 《Health psychology》2006,25(3):364-369
This study evaluated cardiovascular responses (CVR) to an active speech task with blatantly discriminatory (BRC) versus neutral (NRC) stimuli and an anger recall task in a sample of Black men (N = 73; age 18 to 47). Diastolic blood pressure scores were higher for NRC versus BRC stimuli during anger recall (p = .05). Moreover, persons in the NRC group who perceived high levels of racism (vs. no racism or BRC group) during active speech showed larger increases in blood pressure across postspeech rest, anger recall, and subsequent rest (p = .03). The notable elevation in CVR in response to an ambiguous event extends current models of racism suggesting that subtle racism is a psychosocial stressor that erodes health through chronically elevated CVR. 相似文献
7.
8.
9.
G. C. Preston 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1985,37(1):23-31
Rats' lever presses on a retractable lever earned brief presentations of discriminative stimuli signalling periods in which responding on an alternative lever was either non-reinforced (extinction) or reinforced on a random ratio schedule. The predictions of two theoretical accounts of this behaviour were tested by studying the effects of omitting either the stimulus signalling the reinforced or that signalling the non-reinforced schedule component. Under these conditions rats' behaviour is determined by the conditioned, affective properties of the stimuli rather than by their purely informational properties. 相似文献
10.
Thomas Teo 《Social and Personality Psychology Compass》2010,4(5):295-303
This article discusses the meaning of epistemological violence in the empirical social sciences. It is argued that the concept is closer to personal than to structural violence in that it has a subject, an object, and an action, even if the violence is indirect and nonphysical: the subject of violence is the researcher, the object is the Other, and the action is the interpretation of data that is presented as knowledge. Using a hypothetical example, the problem of interpretation in empirical research on the Other is discussed. Epistemological violence refers to the interpretation of social-scientific data on the Other and is produced when empirical data are interpreted as showing the inferiority of or problematizes the Other, even when data allow for equally viable alternative interpretations. Interpretations of inferiority or problematizations are understood as actions that have a negative impact on the Other. Because the interpretations of data emerge from an academic context and thus are presented as knowledge, they are defined as epistemologically violent actions. Problems, consequences, and practices surrounding this concept are discussed. 相似文献