全文获取类型
收费全文 | 43404篇 |
免费 | 814篇 |
国内免费 | 3篇 |
专业分类
管理学 | 5564篇 |
民族学 | 250篇 |
人才学 | 9篇 |
人口学 | 3967篇 |
丛书文集 | 231篇 |
教育普及 | 3篇 |
理论方法论 | 4108篇 |
现状及发展 | 1篇 |
综合类 | 590篇 |
社会学 | 21759篇 |
统计学 | 7739篇 |
出版年
2023年 | 223篇 |
2021年 | 251篇 |
2020年 | 669篇 |
2019年 | 1067篇 |
2018年 | 1152篇 |
2017年 | 1573篇 |
2016年 | 1163篇 |
2015年 | 859篇 |
2014年 | 1095篇 |
2013年 | 7414篇 |
2012年 | 1459篇 |
2011年 | 1423篇 |
2010年 | 1076篇 |
2009年 | 979篇 |
2008年 | 1155篇 |
2007年 | 1147篇 |
2006年 | 1111篇 |
2005年 | 966篇 |
2004年 | 958篇 |
2003年 | 818篇 |
2002年 | 878篇 |
2001年 | 1033篇 |
2000年 | 905篇 |
1999年 | 861篇 |
1998年 | 702篇 |
1997年 | 619篇 |
1996年 | 640篇 |
1995年 | 640篇 |
1994年 | 595篇 |
1993年 | 595篇 |
1992年 | 656篇 |
1991年 | 648篇 |
1990年 | 620篇 |
1989年 | 578篇 |
1988年 | 555篇 |
1987年 | 510篇 |
1986年 | 503篇 |
1985年 | 561篇 |
1984年 | 533篇 |
1983年 | 501篇 |
1982年 | 423篇 |
1981年 | 355篇 |
1980年 | 391篇 |
1979年 | 416篇 |
1978年 | 337篇 |
1977年 | 306篇 |
1976年 | 277篇 |
1975年 | 285篇 |
1974年 | 256篇 |
1973年 | 186篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
Community attachment is the feeling of being connected to community life. Within the community attachment literature, two classic approaches frame scholars’ understanding of this important dimension of community life: the linear development and systemic models. Our empirical models emphasize different factors for community attachment, including population size, density, and heterogeneity for the linear development model and age, length of residence, and social status for the systemic model. Surprisingly, heterogeneity has been omitted from analyses of the linear development model throughout the literature since its introduction, a shortcoming our study addresses. Though heterogeneity can be conceptualized in a number of ways, a large—and growing—body of literature focuses on the effects of race and ethnicity for communities. Here, we focus on a particular type of ethnic heterogeneity—European ancestry—and reincorporate this essential dimension of communities back into the linear development model of community attachment. Using data from the 2004 wave of the Iowa Community Survey and multilevel modeling techniques, we explore how white ethnic diversity matters for community life. We conclude with a discussion of the implications of our study, including potential avenues for future research focusing on other ethnicities that are often subsumed under broader racial and panethnic labels. 相似文献
993.
H. Jonathon Rendina Jonathan López-Matos Katie Wang John E. Pachankis 《Journal of sex research》2019,56(4-5):620-631
Researchers have theorized about the role of sexual shame as a mechanism through which sexual minority stress manifests into mental health difficulties, such as sexual compulsivity for gay and bisexual men (GBM), and about the resilience-promoting effects of sexual pride. However, no validated measures to date have directly tapped into these constructs rather than using proxies for them, such as internalized homonegativity. We developed the Sexual Shame and Pride Scale (SSPS) and conducted a psychometric evaluation of it using a sample of 260 highly sexually active GBM. The scale had the expected structure in factor analysis and showed evidence of internal consistency and test–retest reliability. Correlational analyses demonstrated the convergent validity of sexual shame and sexual pride with relevant constructs. Regression analyses demonstrated the predictive validity of sexual shame in relation to sexual compulsivity, accounting for unique variability even after adjusting for previously demonstrated etiological factors, and the predictive validity of both shame and pride, which interacted to consistently predict four sexual behavior outcomes. Findings suggest the SSPS is a psychometrically valid and reliable measure that may be useful in future empirical work and highlight preliminary evidence for the role of these constructs in the sexual health of GBM. 相似文献
994.
995.
We conduct an experiment that examines the relationship between girls only schooling and risk taking and competitive behavior. In it, we compare decisions made by students in an all‐girls' school to those made by students in a closely matched coeducational school. We further investigate the developmental nature of this behavior by comparing choices made by younger students (Grades 7 and 8) with those of older students (Grades 11 and 12). We focus on the differences between those who select into the all‐girls' school, and find that although girls educated in a single sex environment are the most risk averse, they are also among the most competitive. These results lend texture to the hypothesis that “nurture matters” in the gender differences debate. (JEL C93, J16, I21) 相似文献
996.
Torben M. Andersen 《Economic inquiry》2019,57(3):1441-1459
The role parents' education plays for the educational achievements of children is a source of unequal opportunities. Through this channel the number of educated affects the options of future cohorts, creating a social multiplier effect making improvements in education self‐reinforcing. Policies to compensate for inequalities of opportunities—public education or transfers—have very different implications. Transfers not only reduce inequality on impact but also reduce social mobility, while public education—even if a perfect substitute to private education—works in the opposite direction. Social impediments to education are similar to a market imperfection, and publicly provided education may lead to a Pareto improvement. (JEL D3, I2, H2, H4) 相似文献
997.
The relationship between the person with dementia with family caregivers is a key factor in maintaining a sense of self and personhood. Spousal caregiving in particular can create a world of shared meaning, and in the context of the presence of cognitive decline in one spouse, couple hood is essential to a full understanding of how spouses live with and respond to the impact of dementia. While much research has focused on the strengths of long-term married couples caring for a spouse with dementia, there is currently little research on how dementia impacts couples in late-life marriage. This qualitative case study focusses on two female caregivers in late-life marriages negotiating the challenges of caregiving for a spouse with dementia. Spouse 1 returned to live with her ex-husband in order to care for him through his dementia journey and they recently remarried. Spouse 2 married a close friend of the family prior to his dementia diagnosis. While participant shared perspectives include: (1) family dynamics, (2) isolation, (3) financial concerns, and (4) acceptance of their role in their spouse’s dementia journey, their long-term outlooks are divergent due to the complexity of their motives for entering in to late-life marriage. 相似文献
998.
Maria A. Monserud 《Marriage & Family Review》2019,55(2):99-125
Using seven waves of data from the Hispanic Established Population for the Epidemiologic Study of the Elderly (1993–2011), this study applies multiphase growth models to examine changes in limitations with activities of daily living (ADL) across widowhood experience among 385 older adults of Mexican descent. This study also investigates the implications of demographic characteristics, health, socioeconomic status, living arrangements, and social involvement. ADL limitations increased pre-widowhood, were at higher levels immediately before and especially during the transition to widowhood, and increased at a steeper rate post-widowhood. Age and partially depressive symptoms accounted for these trends in ADL limitations pre-widowhood and to a lesser extent during the transition to widowhood and post-widowhood. Older age, being female, chronic conditions, financial strain, lower educational attainment, coresidence with children and others, and less frequent church attendance were risk factors for higher levels of and greater increases in these functional limitations throughout widowhood experience. 相似文献
999.
Cameron C. Brown Zenova Williams Jared A. Durtschi 《Journal of marital and family therapy》2019,45(4):650-667
Minimal research has examined interracial couples’ relationship satisfaction and dissolution patterns over time. Using dyadic data across 8 years, we examined potential differences in relationship quality trajectories through latent growth curve modeling with 1,336 couples as well as differential risks for relationship dissolution through logistic regression between same‐race and interracial relationships using a different subset of 2,370 couples. Results indicated that women in interracial relationships were significantly lower in initial relationship quality than women in same‐race relationships. Further, interracial couples of Black‐Hispanic partnerings were twice as likely to separate across 8 years than same‐race couples. These results suggest that despite interracial relationships not substantively differing from same‐race couples in trajectories of relationship quality, specific Black‐Hispanic interracial couples are at a higher risk of eventual separation. 相似文献
1000.
Tim S. Welch E. Megan Lachmar Silvia G. Leija Trisha Easley Adrian J. Blow Andrea K. Wittenborn 《Journal of marital and family therapy》2019,45(4):621-634
Emotionally Focused Couple Therapy (EFT) is an effective approach to working with distressed couples. It is not only effective in reducing relationship distress, but also in successfully maintaining gains over time. In the current study, we sought to understand the therapy processes that result in the creation of safety during stage one of EFT. Safety is a key ingredient in stage one, setting the stage for deeper interpersonal and intrapsychic work in later stages of treatment. In order to achieve the study aim, we analyzed video recordings of the first six sessions of a single couple case from an EFT randomized controlled trial. Using a theory building case study approach, results reveal that all expected components related to the creation of safety were achieved. Additional findings from our analyses indicate that the therapist was highly active, especially in seizing key moments in the therapy provided by this particular case, which shifted the couple in the direction of safety and deescalated their interactional cycle. Implications of key findings are discussed. 相似文献