全文获取类型
收费全文 | 7686篇 |
免费 | 123篇 |
国内免费 | 4篇 |
出版年
2021年 | 28篇 |
2020年 | 43篇 |
2019年 | 61篇 |
2018年 | 197篇 |
2017年 | 174篇 |
2016年 | 283篇 |
2015年 | 154篇 |
2014年 | 134篇 |
2013年 | 422篇 |
2012年 | 410篇 |
2011年 | 404篇 |
2010年 | 108篇 |
2009年 | 97篇 |
2008年 | 155篇 |
2007年 | 183篇 |
2006年 | 174篇 |
2005年 | 1444篇 |
2004年 | 772篇 |
2003年 | 564篇 |
2002年 | 245篇 |
2001年 | 76篇 |
2000年 | 57篇 |
1999年 | 68篇 |
1998年 | 67篇 |
1997年 | 61篇 |
1996年 | 38篇 |
1995年 | 28篇 |
1994年 | 56篇 |
1993年 | 42篇 |
1992年 | 62篇 |
1991年 | 68篇 |
1990年 | 80篇 |
1989年 | 74篇 |
1988年 | 62篇 |
1987年 | 66篇 |
1986年 | 55篇 |
1985年 | 54篇 |
1984年 | 65篇 |
1983年 | 61篇 |
1982年 | 43篇 |
1981年 | 28篇 |
1979年 | 58篇 |
1978年 | 49篇 |
1977年 | 25篇 |
1976年 | 42篇 |
1975年 | 49篇 |
1974年 | 55篇 |
1973年 | 50篇 |
1972年 | 31篇 |
1971年 | 29篇 |
排序方式: 共有7813条查询结果,搜索用时 31 毫秒
961.
Michaela?Potan?oková Sandra?Jurasszovich Anne?GoujonEmail author 《Journal of International Migration and Integration》2018,19(4):905-924
Scientific knowledge on a population’s religious composition is essential to understand the challenges faced by societies today. It arises in opposition to speculations about the actual size of religious groups that have been increasingly present in the public discourse in Europe for many years. This is particularly the case in Austria where the flows of refugees and migrants coming from the Middle East and Afghanistan have intensified since 2011 and culminated in 2015. These sparked a debate on the actual size of the Muslim population in Austria. This study fills the gap by presenting estimates of the religious composition for 2016 and projections until 2046 based on several scenarios related to the three major forces affecting the religious composition: migration (including asylum seekers), differential fertility and secularisation. The projections demonstrate that religious diversity is bound to increase, mostly through immigration and fertility. We further focus on the role and implications of international migration on the age and sex composition within the six religious groups: Roman Catholics, Protestants, Orthodox, Muslims, other religions and unaffiliated. We find that the volume and composition of international migrants can maintain youthful age compositions in minority religions—Muslims and Orthodox. Sustained immigration leads to slower ageing but does not stop or reverse the process. The disparity between older majority and younger minority religious groups will further increase the cultural generation gap. 相似文献
962.
Daniel?ChadbornView authors OrcID profile Stephen?ReysenEmail author 《Current psychology (New Brunswick, N.J.)》2018,37(3):625-631
Inspiration is a state, evoked from some source, which creates a form of approach motivation within an individual to work toward a goal, usually associated with a creative task or product. Previous research has explored inspiration as a trait which varies in the level of intensity and frequency that one is inspired by a given source. The present research views inspiration from a social identity perspective. In Study 1, we examined the associations between ingroup identification and both state and trait inspiration. In Study 2, we manipulated salient group identity and examined ingroup identification as a mediator of salient identity and felt inspiration. In Study 3, we manipulated outgroup comparisons to examine inspiration change. Combined, the present research offers insight into how one’s group influences how ingroup members are inspired. 相似文献
963.
Mariela?Pavalache-IlieEmail author Liliane?Rioux 《Current psychology (New Brunswick, N.J.)》2018,37(4):740-747
Students who are admitted to university have to get accustomed to and then assimilate the codes of their new life, progressively acquiring a new social status and a new identity. There is no tool in Romanian to measure students’ perceived stress. This article presents the results of a series of five studies to validate a scale of Everyday Hassles of Romanian Students. Seven hundred and seventy seven Romanian students enrolled in a university program either in Engineering or the Humanities participated in the studies. The results revealed that the questionnaire of Everyday Hassles of Romanian Students had a six-factor structure. It had acceptable reliability and validity values. With regard to reliability, its scales showed high levels of internal consistency and temporal stability over a time span of three weeks. The results seem equally encouraging in terms of validity. Further investigations, particularly studies of convergence and discrimination, are required to identify more precisely the construct validity of the tool. 相似文献
964.
JohnBosco?Chika?ChukwuorjiEmail author Ezichi?Anya?Ituma Lawrence?Ejike?Ugwu 《Current psychology (New Brunswick, N.J.)》2018,37(4):792-802
Earlier studies have shown that locus of control is related to academic processes and outcomes. However, the nature of the relationship between locus of control, religious commitment, and academic engagement is unclear. This study examined the mediating role of religious commitment in linking locus of control with academic engagement, as well as the engagement dimensions - vigour, dedication, and absorption. Four hundred and eight university students completed the Locus of Control Behaviour Scale, Religious Commitment Inventory and Utrecht Work Engagement Scale – Student version. Locus of control was found to be positively related to the outcome variables. Intrapersonal religious commitment was positively related to the outcome variables. Interpersonal religious commitment did not have a significant relationship with vigour and absorption but it was significantly related to dedication and the total scores of academic engagement. Structural equation modelling analyses indicated significant paths from locus of control to academic engagement through both intrapersonal religious commitment and interpersonal religious commitment. Locus of control and religious commitment are suggested to be relevant in programmes and interventions to enhance academic engagement. 相似文献
965.
Amanda?M.?Willis Sian?K.?Smith Bettina?Meiser Mandy?L.?Ballinger David?M.?Thomas Martin?Tattersall the International Sarcoma Kindred Study the Kathleen Cuningham National Consortium for Research into Familial Breast Cancer Mary-Anne?Young 《Journal of genetic counseling》2018,27(5):1055-1066
Germline genomic testing is increasingly used in research to identify genetic causes of disease, including cancer. However, there is evidence that individuals who are notified of clinically actionable research findings have difficulty making informed decisions regarding uptake of genetic counseling for these findings. This study aimed to produce and pilot test a decision aid to assist participants in genomic research studies who are notified of clinically actionable research findings to make informed choices regarding uptake of genetic counseling. Development was guided by published literature, the International Patient Decision Aid Standards, and the expertise of a steering committee of clinicians, researchers, and consumers. Decision aid acceptability was assessed by self-report questionnaire. All 19 participants stated that the decision aid was easy to read, clearly presented, increased their understanding of the implications of taking up research findings, and would be helpful in decision-making. While low to moderate levels of distress/worry were reported after reading the booklet, a majority of participants also reported feeling reassured. All participants would recommend the booklet to others considering uptake of clinically actionable research findings. Results indicate the decision aid is acceptable to the target audience, with potential as a useful decision support tool for genomic research participants. 相似文献
966.
Carlijn van Baak Brittany E. Hayes Joshua D. Freilich Steven M. Chermak 《Deviant behavior》2018,39(2):187-202
Honor crimes are violent acts that are experienced among different religions and ethnicities. This type of offense can be justified, either before or after the crime, by the offender’s perceived need to protect honor-based values. This study used Sykes and Matza’s neutralization theory to explain the offender’s justification of honor crimes. We used data from the United States Extremist Crime Database, which has incident, victim, and perpetrator level indicators for the population of honor crimes in the United States (N = 16). Using open source search files for the cases, neutralizations and justifications provided by the offenders are presented. 相似文献
967.
This study employs exploratory spatial data analysis and spatial count regression models to examine xenophobic and racially motivated crimes in Belgium between 2000 and 2012. Drawing upon recent work, we conceptualize and operationalize hate crime in multiple ways, reflecting “spaces of hate,” victimization risks, and risks adjusted for random interactions. The results reveal that hate crimes exhibit a distinct spatial imprint, which corresponds to Belgium’s geographic regions. The findings also reaffirm previous research, indicating that the choice of the offset in the computation of hate crime rates is highly consequential for assessing the impact of relative group size. 相似文献
968.
Briana L. Kennedy Daniel Pearson David J. Sutton Tom Beesley Steven B. Most 《Attention, perception & psychophysics》2018,80(2):426-438
People’s ability to perceive rapidly presented targets can be disrupted both by voluntary encoding of a preceding target and by spontaneous attention to salient distractors. Distinctions between these sources of interference can be found when people search for a target in multiple rapid streams instead of a single stream: voluntary encoding of a preceding target often elicits subsequent perceptual lapses across the visual field, whereas spontaneous attention to emotionally salient distractors appears to elicit a spatially localized lapse, giving rise to a theoretical account suggesting that emotional distractors and subsequent targets compete spatiotemporally during rapid serial visual processing. We used gaze-contingent eye-tracking to probe the roles of spatiotemporal competition and memory encoding on the spatial distribution of interference caused by emotional distractors, while also ruling out the role of eye-gaze in driving differences in spatial distribution. Spontaneous target perception impairments caused by emotional distractors were localized to the distractor location regardless of where participants fixated. But when emotional distractors were task-relevant, perceptual lapses occurred across both streams while remaining strongest at the distractor location. These results suggest that spatiotemporal competition and memory encoding reflect a dual-route impact of emotional stimuli on target perception during rapid visual processing. 相似文献
969.
From Fathers to Sons: The Intergenerational Transmission of Parenting Behavior among African American Young Men 下载免费PDF全文
This study examined the intergenerational transmission of fathering among young, African American fathers in rural communities. A sample of 132 African American young men living in the rural South reported on the quality of their relationship with their biological and social fathers in the family of origin, their own involvement with their young children, and relational schemas of close, intimate relationships. Results of path analyses supported the hypothesized mediational model, such that a better relationship with one's biological (but not social) father predicted increased father involvement in the next generation, and this association was partially mediated through positive relational schema after controlling for a range of covariates. Tests of moderated mediation indicated that the link between relational schema and father involvement was significantly stronger among fathers of girls than fathers of boys. Findings highlight the unique influence of close, nurturing father–child relationships for downstream father involvement, and the role of relational schemas as a mechanism for intergenerational transmission among young, rural, African American fathers of girls. 相似文献
970.
Bryan Klapes Steven Riley J. J McDowell 《Journal of the experimental analysis of behavior》2018,109(2):336-348
A direct‐suppression, or subtractive, model of punishment has been supported as the qualitatively and quantitatively superior matching law‐based punishment model (Critchfield, Paletz, MacAleese, & Newland, 2003; de Villiers, 1980; Farley, 1980). However, this conclusion was made without testing the model against its predecessors, including the original (Herrnstein, 1961) and generalized (Baum, 1974) matching laws, which have different numbers of parameters. To rectify this issue, we reanalyzed a set of data collected by Critchfield et al. (2003) using information theoretic model selection criteria. We found that the most advanced version of the direct‐suppression model (Critchfield et al., 2003) does not convincingly outperform the generalized matching law, an account that does not include punishment rates in its prediction of behavior allocation. We hypothesize that this failure to outperform the generalized matching law is due to significant theoretical shortcomings in model development. To address these shortcomings, we present a list of requirements that all punishment models should satisfy. The requirements include formal statements of flexibility, efficiency, and adherence to theory. We compare all past punishment models to the items on this list through algebraic arguments and model selection criteria. None of the models presented in the literature thus far meets all of the requirements. 相似文献