全文获取类型
收费全文 | 1603篇 |
免费 | 167篇 |
国内免费 | 215篇 |
出版年
2023年 | 30篇 |
2022年 | 23篇 |
2021年 | 64篇 |
2020年 | 109篇 |
2019年 | 79篇 |
2018年 | 72篇 |
2017年 | 97篇 |
2016年 | 82篇 |
2015年 | 65篇 |
2014年 | 80篇 |
2013年 | 269篇 |
2012年 | 46篇 |
2011年 | 52篇 |
2010年 | 54篇 |
2009年 | 74篇 |
2008年 | 72篇 |
2007年 | 78篇 |
2006年 | 80篇 |
2005年 | 67篇 |
2004年 | 56篇 |
2003年 | 42篇 |
2002年 | 42篇 |
2001年 | 31篇 |
2000年 | 27篇 |
1999年 | 23篇 |
1998年 | 21篇 |
1997年 | 26篇 |
1996年 | 18篇 |
1995年 | 15篇 |
1994年 | 7篇 |
1993年 | 5篇 |
1992年 | 6篇 |
1991年 | 5篇 |
1989年 | 7篇 |
1988年 | 5篇 |
1987年 | 6篇 |
1986年 | 4篇 |
1985年 | 16篇 |
1984年 | 12篇 |
1983年 | 7篇 |
1982年 | 9篇 |
1981年 | 11篇 |
1980年 | 16篇 |
1979年 | 9篇 |
1978年 | 13篇 |
1977年 | 14篇 |
1976年 | 10篇 |
1975年 | 11篇 |
1974年 | 5篇 |
1973年 | 8篇 |
排序方式: 共有1985条查询结果,搜索用时 31 毫秒
921.
Kevin M. Beaver Joseph A. Schwartz Joseph L. Nedelec Eric J. Connolly Brian B. Boutwell J.C. Barnes 《Intelligence》2013
Findings flowing from empirical research consistently indicate that IQ is associated with criminal involvement, with persons of relatively lower IQ being more likely to engage in various types of crime when compared with persons of relatively higher IQ. As with all research, however, there are a number of limitations with the existing literature that may bias the IQ–crime connection in unknown ways. Specifically, previous research has generally analyzed sub-samples drawn from non-nationally representative samples, has relied on a narrow range of criminal justice measures, has not fully examined whether the IQ–crime link is observed across demographic subgroups, and has not always ruled out the effects of potential confounds. The current study is designed to overcome the most serious of these limitations and offer new evidence of the link between IQ and criminal involvement. Analysis of data drawn from the National Longitudinal Study of Adolescent Health (Add Health) provides strong evidence indicating that IQ and crime are linked even after addressing various shortcomings of previous research. Limitations of the study are discussed and directions for future research are offered. 相似文献
922.
Peter Muris Lisanne van Zwol Jorg Huijding Birgit Mayer 《Behaviour research and therapy》2010,48(4):341-346
This study investigated whether fear beliefs can be installed in children after parents had received negatively tinted information about a novel stimulus. Parents of children aged 8-13 years (N = 88) were presented with negative, positive, or ambiguous information about an unknown animal and then given a number of open-ended vignettes describing confrontations with the animal with the instruction to tell their children what would happen in these situations. Results indicated that children's fear beliefs were influenced by the information that was provided to the parent. That is, parents who had received negative information provided more threatening narratives about the animal and hence installed higher levels of fear beliefs in their children than parents who had received positive information. In the case of ambiguous information, the transmission of fear was dependent on parents' trait anxiety levels. More precisely, high trait anxious parents told more negative stories about the unknown animal, which produced higher fear levels in children. 相似文献
923.
The present study examined whether information processing bias against emotional facial expressions is present among individuals with social anxiety. College students with high (high social anxiety group; n = 26) and low social anxiety (low social anxiety group; n = 26) performed three different types of working memory tasks: (a) ordering positive and negative facial expressions according to the intensity of emotion; (b) ordering pictures of faces according to age; and (c) ordering geometric shapes according to size. The high social anxiety group performed significantly more poorly than the low social anxiety group on the facial expression task, but not on the other two tasks with the nonemotional stimuli. These results suggest that high social anxiety interferes with processing of emotionally charged facial expressions. 相似文献
924.
This study reconsiders the well‐known link between gang membership and criminal involvement. Recently developed analytical techniques enabled the approximation of an experimental design to determine whether gang members, after being matched with similarly situated nongang members, exhibited greater involvement in nonviolent and violent delinquency. Findings indicated that while gang membership is a function of self‐selection, selection effects alone do not account for the greater involvement in delinquency exhibited by gang members. After propensity score matching was employed, gang members maintained a greater involvement in both nonviolent and violent delinquency when measured cross‐sectionally, but only violent delinquency when measured longitudinally. Additional analyses using inverse probability of treatment weights reaffirmed these conclusions. Aggr. Behav. 36:437–451, 2010. © 2010 Wiley‐Liss, Inc. 相似文献
925.
926.
肿瘤组织是人类直接探讨肿瘤发生、发展和转移机制的研究对象,建立肿瘤组织库(tumor tissue bank,TTB),使用一套规范化操作程序(standard operating procedures,SOPs)来收集高质量的组织标本,避免其浪费势在必行。规范化TTB的建设也将涉及TTB的信息化管理及通用数据元素(common data elements,CDEs)的开发。深入探讨这些方面将有助于我国科研机构建立起自己标准化的TTB。 相似文献
927.
This study examines the indirect role of psychological safety in shaping the four cognitions of psychological empowerment (i.e., meaning, competence, self-determination, impact) through three social mechanisms: authentic interactions, spiritual development, and perceived organizational voice. Data were collected from 229 congregation members of a nondenominational church. Preliminary analyses reveal psychological safety is: (a) linked to all four empowerment cognitions, (b) associated with the three proximal social mechanisms, and (c) indirectly predicts three of the four empowerment cognitions through heightened level of authentic interactions, spiritual development, and perceived organizational voice. Moreover, extraversion moderated the relationship of psychological safety with authentic interactions which, in turn, strengthened the size of the indirect effect for the meaning subcomponent of empowerment. Overall, this study suggests empowerment research can draw upon the potential, but frequently untapped, benefits of cultivating a secure space to facilitate member motivation through sincerity, personal development, and perceived voice. 相似文献
928.
We examined the links between unmitigated communion, interpersonal behavior, and well-being on a daily basis with 79 college students. After completing a baseline questionnaire, participants completed brief on-line questionnaires at the end of the day to assess support interactions, interpersonal behavior, and well-being for 10 consecutive days. We used multi-level modeling to examine whether unmitigated communion was connected to support and interpersonal behavior, whether support and interpersonal behavior were connected to well-being, and whether unmitigated communion moderated the latter relations. Unmitigated communion was related to increased support provision and a host of interpersonal difficulties. Daily support provision and being overly nurturant were positively related to well-being, but these relations were limited to individuals characterized by low unmitigated communion. 相似文献
929.
Modifiable behavioral risk factors such as cigarette smoking, physical inactivity, and obesity contribute to over 40 % of premature deaths in the USA. Advances in digital and information technology are creating unprecedented opportunities for behavior analysts to assess and modify these risk factors. Technological advances include mobile devices, wearable sensors, biomarker detectors, and real-time access to therapeutic support via information technology. Integrating these advances with behavioral technology in the form of conceptually systematic principles and procedures could usher in a new generation of effective and scalable behavioral interventions targeting health behavior. In this selective review of the literature, we discuss how technological tools can assess and modify a range of antecedents and consequences of healthy and unhealthy behavior. We also describe practical, methodological, and conceptual advantages for behavior analysts that stem from the use of technology to assess and treat health behavior. 相似文献
930.
Mid‐ and Long‐Term Effects of Family Constellation Seminars in a General Population Sample: 8‐ and 12‐Month Follow‐Up 下载免费PDF全文
Christina Hunger Jan Weinhold Annette Bornhäuser Leoni Link Jochen Schweitzer 《Family process》2015,54(2):344-358
In a previous randomized controlled trial (RCT), short‐term efficacy of family constellation seminars (FCSs) in a general population sample was demonstrated. In this article, we examined mid‐ and long‐term stability of these effects. Participants were 104 adults (M = 47 years; SD = 9; 84% female) who were part of the intervention group in the original RCT (3‐day FCS; 64 active participants and 40 observing participants). FCSs were carried out according to manuals. It was predicted that FCSs would improve psychological functioning (Outcome Questionnaire OQ‐45.2) at 8‐ and 12‐month follow‐up. Additionally, we assessed the effects of FCSs on psychological distress, motivational incongruence, individuals’ experience in their personal social systems, and overall goal attainment. Participants yielded significant improvement in psychological functioning (d = 0.41 at 8‐month follow‐up, p = .000; d = 0.40 at 12‐month follow‐up, p = .000). Results were confirmed for psychological distress, motivational incongruence, the participants’ experience in their personal social systems, and overall goal attainment. No adverse events were reported. This study provides first evidence for the mid‐ and long‐term efficacy of FCSs in a nonclinical population. The implications of the findings are discussed. 相似文献