全文获取类型
收费全文 | 5511篇 |
免费 | 74篇 |
国内免费 | 1篇 |
专业分类
5586篇 |
出版年
2024年 | 54篇 |
2023年 | 61篇 |
2022年 | 87篇 |
2021年 | 104篇 |
2020年 | 142篇 |
2019年 | 135篇 |
2018年 | 263篇 |
2017年 | 248篇 |
2016年 | 227篇 |
2015年 | 145篇 |
2014年 | 164篇 |
2013年 | 701篇 |
2012年 | 401篇 |
2011年 | 403篇 |
2010年 | 251篇 |
2009年 | 165篇 |
2008年 | 314篇 |
2007年 | 255篇 |
2006年 | 225篇 |
2005年 | 210篇 |
2004年 | 121篇 |
2003年 | 129篇 |
2002年 | 124篇 |
2001年 | 58篇 |
2000年 | 76篇 |
1999年 | 44篇 |
1998年 | 25篇 |
1997年 | 18篇 |
1996年 | 21篇 |
1995年 | 18篇 |
1994年 | 12篇 |
1993年 | 16篇 |
1992年 | 30篇 |
1991年 | 20篇 |
1990年 | 24篇 |
1989年 | 23篇 |
1988年 | 26篇 |
1987年 | 16篇 |
1985年 | 12篇 |
1984年 | 16篇 |
1983年 | 12篇 |
1979年 | 15篇 |
1978年 | 11篇 |
1976年 | 13篇 |
1974年 | 10篇 |
1971年 | 10篇 |
1970年 | 10篇 |
1968年 | 11篇 |
1966年 | 9篇 |
1965年 | 10篇 |
排序方式: 共有5586条查询结果,搜索用时 15 毫秒
971.
Rolland Benjamin D’Hondt Fabien Montègue Solène Brion Mélanie Peyron Eric D’Aviau de Ternay Julia de Timary Philippe Nourredine Mikaïl Maurage Pierre 《Neuropsychology review》2019,29(1):103-115
Neuropsychology Review - Substance use disorders (SUDs) are associated with impairments of cognitive functions, and cognitive training programs are thus rapidly developing in SUD treatment.... 相似文献
972.
Science and Engineering Ethics - The publication of scientific papers has become increasingly problematic in the last decades. Even if we agree that a renewed model is needed for peer-reviewed... 相似文献
973.
Frédéric Dieu 《Médecine & Droit》2019,2019(154):20-24
Constituted courts of ordinal authorities are not competent to judge facts committed by a university professor-hospital practitioner, which are related to his teaching activity. Only the court specific to hospital teachers, which is seized by the ministries of health and higher education, is competent to judge those facts. 相似文献
974.
Phenomenology and the Cognitive Sciences - 相似文献
975.
Christine Tagliaferri Rael Alan Sheinfil Karen Hampanda Alex Carballo-Diéguez Andrea Norcini Pala William BrownIII 《Sexuality & culture》2017,21(3):680-691
Haitians in the Dominican Republic (DR) are increasingly marginalized due to recent legislation that stripped Haitian-Dominicans of their citizenship and increased Haitian migrants’ deportation risk. Haitian female sex workers (FSWs) are particularly vulnerable, though little is known about them. This study will help public health efforts targeted at sex workers to better reach Haitian FSWs and address their needs by identifying a profile of characteristics unique to this group compared to Dominican FSWs. Data were collected in 2014 among Haitian and Dominican FSWs in Puerto Plata, DR. Surveys assessed respondents’ demographics, health consciousness, depression, and stigma. Adjusted logistic regressions showed that Haitian FSWs were disadvantaged: they had significantly lower rates of education, more children, and less permanent income. Furthermore, Haitian FSWs were more likely to work independently and for fewer hours. Interestingly, Haitian FSWs internalized less stigma than Dominicans. Though we can only speculate, this could be due to migration for sex work, or the lack of formal employment for Haitians. Initiatives to alleviate poverty, create formal jobs, and overturn discriminatory legislation may have the most impact for Haitian FSWs. 相似文献
976.
Elena Bárcena-Martín Alexandra Cortés-Aguilar Ana I. Moro-Egido 《Journal of Happiness Studies》2017,18(4):1121-1145
Using the German Socio-Economic Panel, we analyze the relevance of modeling social comparisons to determine their effect on subjective well-being. We find that it is important to model social comparisons in such a way that captures the sensitivity of individuals to proximity. The impact on subjective well-being differs depending on the manner in which proximity is modeled, revealing that the underlying processes in comparisons are not homogenous along the income distribution. Additionally, our results point out that social and cultural capital modify the effect of social comparisons and such modification depends on the sensitivity to proximity. 相似文献
977.
José Atilano Pena-López José Manuel Sánchez-Santos Matías Membiela-Pollán 《Journal of Happiness Studies》2017,18(3):881-901
In this paper we analyze the non-instrumental dimension of social capital and its effects on subjective well-being. In the first part, we define the characteristics of production and consumption of relational goods. The second section analyses the influence of the different expressions of relational goods and social capital on individual subjective well-being. In the third, we test the explanatory power of this variable on the Easterlin’s paradox using the results of a survey on individual social capital in Spain. The main findings from the empirical analysis for Spanish society allow us to strengthen the hypothesis. We found a weak explanatory capacity of income or educational level or instrumental dimensions of social capital (expert mobilization) while a strong link between expressions of relational goods (domestic mobilization, household stability, partnership, trust and security in the environment) was found. 相似文献
978.
Martin Debbané Deborah Badoud David Sander Stephan Eliez Patrick Luyten Pascal Vrtička 《Cognitive, affective & behavioral neuroscience》2017,17(3):554-576
One of teenagers’ key developmental tasks is to engage in new and meaningful relationships with peers and adults outside the family context. Attachment-derived expectations about the self and others in terms of internal attachment working models have the potential to shape such social reorientation processes critically and thereby influence adolescents’ social-emotional development and social integration. Because the neural underpinnings of this developmental task remain largely unknown, we sought to investigate them by functional magnetic resonance imaging. We asked n = 44 adolescents (ages 12.01–18.84 years) to evaluate positive and negative adjectives regarding either themselves or a close other during an adapted version of the well-established self-other trait-evaluation task. As measures of attachment, we obtained scores reflecting participants’ positive versus negative attachment-derived self- and other-models by means of the Relationship Questionnaire. We controlled for possible confounding factors by also obtaining scores reflecting internalizing/externalizing problems, schizotypy, and borderline symptomatology. Our results revealed that participants with a more negative attachment-derived self-model showed increased brain activity during positive and negative adjective evaluation regarding the self, but decreased brain activity during negative adjective evaluation regarding a close other, in bilateral amygdala/parahippocampus, bilateral anterior temporal pole/anterior superior temporal gyrus, and left dorsolateral prefrontal cortex. These findings suggest that a low positivity of the self-concept characteristic for the attachment anxiety dimension may influence neural information processing, but in opposite directions when it comes to self- versus (close) other-representations. We discuss our results in the framework of attachment theory and regarding their implications especially for adolescent social-emotional development and social integration. 相似文献
979.
Nicolas Claidière Julie Gullstrand Aurélien Latouche Joël Fagot 《Behavior research methods》2017,49(1):24-34
Social network analysis has become a prominent tool to study animal social life, and there is an increasing need to develop new systems to collect social information automatically, systematically, and reliably. Here we explore the use of a freely accessible Automated Learning Device for Monkeys (ALDM) to collect such social information on a group of 22 captive baboons (Papio papio). We compared the social network obtained from the co-presence of the baboons in ten ALDM testing booths to the social network obtained through standard behavioral observation techniques. The results show that the co-presence network accurately reflects the social organization of the group, and also indicate under which conditions the co-presence network is most informative. In particular, the best correlation between the two networks was obtained with a minimum of 40 days of computer records and for individuals with at least 500 records per day. We also show through random permutation tests that the observed correlations go beyond what would be observed by simple synchronous activity, to reflect a preferential choice of closely located testing booths. The use of automatized cognitive testing therefore presents a new way of obtaining a large and regular amount of social information that is necessary to develop social network analysis. It also opens the possibility of studying dynamic changes in network structure with time and in relation to the cognitive performance of individuals. 相似文献
980.
Laura?KaltwasserEmail authorView authors OrcID profile Kerry?Moore André?Weinreich Werner?Sommer 《Motivation and emotion》2017,41(4):532-544
Facial expressions of anger and fear have been seen to elicit avoidance behavior in the perceiver due to their negative valence. However, recent research uncovered discrepancies regarding these immediate motivational implications of fear and anger, suggesting that not all negative emotions trigger avoidance to a comparable extent. To clarify those discrepancies, we considered recent theoretical and methodological advances, and investigated the role of social preferences and processing focus on approach-avoidance tendencies (AAT) to negative facial expressions. We exposed participants to dynamic facial expressions of anger, disgust, fear, or sadness, while they processed either the emotional expression or the gender of the faces. AATs were assessed by reaction times of lever movements, and by posture changes via head-tracking. We found that—relative to angry faces-, fearful and sad faces triggered more approach, with a larger difference between fear and anger in prosocial compared to individualistic participants. Interestingly, these findings are in line with a recently developed concern hypothesis, suggesting that—relative to other negative expressions—expressions of distress may facilitate approach, especially in participants with prosocial preferences. 相似文献