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41.
Journal of Population Research - A neoliberal immigration regime often takes an “economic” lens to frame and reframe immigration regulation based on a rational cost–benefit...  相似文献   
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Research into the health and wellbeing of rural lesbian, gay, bisexual, and transgender (LGBT) populations is limited. A community-based participatory research (CBPR) approach was used to develop an online survey for LGBT Nebraskans. The 770 participants replied to an array of questions on social determinants of health and basic health outcomes. Only significant differences in having health insurance were found between urban and rural participants. Social determinants of health were explored. Results of this study suggest that regional culture may be more salient to health for lesbian, gay, bisexual, and transgender persons living in the Midwest than rural or urban residence.  相似文献   
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A national sample of US teenagers combined with a complementary sample of US adults are used to examine the effects of teenage childbearing on health behaviors by comparing female siblings in both the teenage sample and a sample of adults. Additionally, miscarriage information available in the teenage sample is used to form comparison groups. Unlike previous estimates of the effects of teenage childbearing on health behaviors, the results using these US samples and research designs suggest that teenage childbearing has negligible effects on several measures of unhealthy behaviors for mothers and may be protective for drug use and binge drinking.  相似文献   
44.
Block clustering with collapsed latent block models   总被引:1,自引:0,他引:1  
We introduce a Bayesian extension of the latent block model for model-based block clustering of data matrices. Our approach considers a block model where block parameters may be integrated out. The result is a posterior defined over the number of clusters in rows and columns and cluster memberships. The number of row and column clusters need not be known in advance as these are sampled along with cluster memberhips using Markov chain Monte Carlo. This differs from existing work on latent block models, where the number of clusters is assumed known or is chosen using some information criteria. We analyze both simulated and real data to validate the technique.  相似文献   
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How peer groups contribute to educational outcomes has long interested researchers. However, the possibility that peer groups dominated by either low- or high-achieving youth can have substantively different effects on achievement has been largely ignored. In this paper, we show that while being embedded in a high-achieving network of friends is not associated with increased own achievement, being embedded in a low-achieving network is associated with decreased own achievement. In additional analyses, we present evidence that these associations are at least in part due to influence, as opposed to only selection effects or shared environment. We also examine whether the structure of the network in which a student is embedded might affect their educational achievement. We show that achieving at higher levels positively predicts how centrally located a student is in their network, but being more centrally located does not predict concurrent achievement. This finding suggests that the behavior of individuals is affecting the formation of network structure and not the reverse.  相似文献   
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ABSTRACT

African American adolescents continue to be disproportionately impacted by HIV, sexually transmitted infections (STIs), and unanticipated pregnancies. In-depth, face-to-face interviews among a convenience sample of 32 African American adolescents (16 male and 16 female) were used to explore the reasons why some adolescents decided to engage in sex while others chose to delay sexual debut. Data were analyzed using a thematic analysis. Among the overall sample, psychological motivations, external pressure, physical pleasure seeking, and relationship-related motivations were the major themes cited for engaging in sex by participants and their friends. External support, motivation to avoid negative consequences, not feeling ready or lacking interest in sex, and having negative views about sex were among the major reasons for delaying sex. Several of the emergent themes showed gender differences. Suggestions for future research include the need for sexual education, and STI/HIV prevention programs that are gender sensitive and flexible enough to accommodate multiple factors related to sexual debut.  相似文献   
49.
Correlates of heavy episodic alcohol and alcohol reduction intervention preferences were examined among lesbian, gay, bisexual, and queer (LGBQ) adults in romantic relationships. Anonymous data were collected online; analyses included logistic and multinomial regression models. One-fourth of participants reported recent heavy episodic alcohol use. Perceptions of partners' engaging in heavy alcohol use was associated with an increased odds of engaging in heavy alcohol use. Perceptions of partners' heavy alcohol use was associated with an increased odds of preferring a couples-based alcohol intervention compared to preferring no intervention. Findings highlight the need to consider partners in alcohol interventions for LGBQ couples.  相似文献   
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This article proposes a structural explanation for the occupational deviance dimension of white collar crime. The systemic model of social disorganization theory is used as a framework for understanding organizational conditions that produce high rates of occupational deviance. The model of workplace disorganization proposed here posits parallel mechanisms can be found in communities as well as organizations. Marginalized workplaces, employee turnover, and employee heterogeneity are antecedent factors that discourage employee network formation and collective action against deviance. By refocusing on organizational factors, we offer a broader understanding of occupational deviance, one that can predict and explain the workplace conditions under which counterproductive behaviors occur.  相似文献   
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