首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1831篇
  免费   125篇
管理学   112篇
民族学   20篇
人口学   159篇
丛书文集   7篇
理论方法论   253篇
综合类   8篇
社会学   1275篇
统计学   122篇
  2024年   4篇
  2023年   33篇
  2022年   16篇
  2021年   19篇
  2020年   69篇
  2019年   89篇
  2018年   110篇
  2017年   129篇
  2016年   102篇
  2015年   83篇
  2014年   80篇
  2013年   328篇
  2012年   91篇
  2011年   86篇
  2010年   45篇
  2009年   53篇
  2008年   63篇
  2007年   68篇
  2006年   53篇
  2005年   45篇
  2004年   41篇
  2003年   35篇
  2002年   36篇
  2001年   33篇
  2000年   22篇
  1999年   24篇
  1998年   22篇
  1997年   13篇
  1996年   13篇
  1995年   10篇
  1994年   6篇
  1993年   13篇
  1992年   8篇
  1991年   7篇
  1990年   4篇
  1989年   8篇
  1988年   8篇
  1987年   6篇
  1986年   6篇
  1985年   8篇
  1984年   5篇
  1983年   5篇
  1982年   8篇
  1981年   6篇
  1980年   7篇
  1978年   7篇
  1975年   3篇
  1973年   4篇
  1969年   3篇
  1966年   3篇
排序方式: 共有1956条查询结果,搜索用时 15 毫秒
91.
Birth outcomes influence many aspects of later life health and wellbeing, making healthcare access during pregnancy a policy priority. Low-income mothers often depend on Medicaid, for which eligibility is determined by their income relative to state eligibility thresholds. The prevalence of adverse birth outcomes is known to exhibit cyclical variation, due in part to changes in the composition of women giving birth in response to changing economic conditions. However, cyclical variation in adverse birth outcomes also varies with respect to Medicaid eligibility thresholds. Our analysis uses birth-records data for 2000 through 2013, aggregated into 173,936 county-by-quarter observations and linked to county-level unemployment rates and state-level parental Medicaid thresholds. Using fixed-effects negative binomial models, we examine the role of Medicaid generosity in influencing birth outcomes across business cycles. We test for interactions between Medicaid and unemployment, hypothesizing that the negative effects of recessions are worse where Medicaid thresholds are more restrictive. We find that higher Medicaid generosity dampens the negative effects of recessions on birth outcomes. The extent to which Medicaid interacts with unemployment also varies according to the age and race composition of mothers; in particular, Black mothers are both most affected by unemployment and most responsive to Medicaid generosity. Given current concerns about racial gaps in both infant and maternal mortality, our findings suggest that Medicaid may be an important feature of a strategy to close gaps in the prevalence of adverse birth outcomes across racial groups, especially during bust years.  相似文献   
92.

Problem

Pacific Islanders are disproportionately burdened by poorer maternal health outcomes with higher rates of pre-term births, low birth weight babies, infant mortality, and inadequate or no prenatal care.

Purpose

The purpose of this study was twofold: (1) to explore maternal health care providers’ perceptions and experiences of barriers in providing care to Marshallese women, and (2) providers perceived barriers of access to care among Marshallese women. This is the first paper to explore perceived barriers to maternal health care among a Marshallese community from maternal health care providers’ perspectives in the United States.

Methods

A phenomenological, qualitative design, using a focus group and in-depth interviews with 20 maternal health care providers residing in northwest Arkansas was chosen.

Findings

Several perceived barriers were noted, including transportation, lack of health insurance, communication and language, and socio-cultural barriers that described an incongruence between traditional and Western medical models of care. There was an overall discord between the collectivist cultural identity of Marshallese families and the individualistic maternal health care system that merits further research.

Discussion

Solutions to these barriers, such as increased cultural competency training for maternal health care providers and the incorporation of community health workers are discussed.  相似文献   
93.
In this article we outline and demonstrate a design anthropological approach to investigating automated mobile futures as a processual opening up of possibilities, rather than as a process of technological innovation. To undertake this we investigate the example of how the car-smartphone relationship is configuring in the contingent circumstances of the mobile present and the implications of this for automated mobile futures. Our discussion is set in the context of the growing possibility that automonous driving (AD) features are increasingly part of everyday mobilities (even if unequally distributed globally) and in which personal mobile smart technologies and artificial intelligence (AI) will exist in some form and will interface with humans and be interoperable with other technologies. In developing this we draw on ethnographic understandings of how people live with the possibilities afforded by technologies in everyday life.  相似文献   
94.
We find a strong positive raw correlation between black exposure to whites in their school district and the prevalence of later mixed-race (black-white) births, consistent with the literature on residential segregation and endogamy. However, that relationship is significantly attenuated by the addition of a few control variables, suggesting that individuals with higher propensities to have mixed-race births are more likely to live in desegregated school districts. We exploit quasi-random variation from court-ordered school desegregation to estimate causal effects of school desegregation on mixed-race childbearing, finding small to moderate effects that are largely statistically insignificant. Because the upward trend across cohorts in mixed-race childbearing was substantial, separating the effects of desegregation plans from secular cohort trends is difficult; results are sensitive to how we specify the cohort trends and to the inclusion of Chicago/Cook County in the sample. The fact that the addition of a few control variables substantially weakens the cross-sectional relationship between lower levels of school segregation and higher rates of mixed-race childbearing suggests that a substantial portion of the observed correlation is likely due to who chooses to live in places with desegregated schools. Researchers should be cautious about interpreting raw correlations between segregation—whether residential or school—and other outcomes as causal. Our results also point to the need to carefully explore specification of cohort effects in quasi-experimental designs for treatments where cumulative exposure is important.  相似文献   
95.
Abstract

This article investigates how discourses of ageing femininity are constructed and negotiated amongst females in Hip Hop. Through the analysis of narratives and imageries constructed within the music and videos of rap veteran Missy “Misdemeanour” Elliott, press responses to Missy’s work and comparative accounts of other prominent female rappers’ performative strategies, this article explores some of the ways that female artists are responding to socially gendered notions of ageing in Hip Hop. I argue that Hip Hop females are in some cases using Hip Hop as a vehicle for subverting age narratives that are commonly associated with ageing femininity. Murray Forman’s concept of “age-representing” is brought into dialogue with representations of ageing Hip Hop females to support this analysis. The writings of Ros Jennings and Abigail Gardner are also drawn on to form a supportive framework by offering comparative accounts of female ageing in other popular music sub-fields. This article aims to contribute to the growing feminist critique of ageing and popular music culture.  相似文献   
96.
Funding decisions to support vulnerable children are tied to child labour statistics, hence the importance of an accurate measurement. The author analyses whether the type of respondent plays an important role in explaining variations in child labour statistics. Using data from two sites in Tanzania, the analysis shows that “whom we ask” matters considerably when estimating the prevalence of child labour. The results suggest that prevalence increases by approximately 35 to 65 per cent when using child self‐reports rather than proxy reports. This bias affects 14 to 31 per cent of the sample, depending on the indicator. Discrepancies decrease as the child ages and increase if proxy attitudes demonstrate opposition to child labour.  相似文献   
97.
Limited research on parental well‐being by child age suggests that parents are better off with very young children despite intense time demands of caring for them. This study uses the American Time Use Survey Well‐Being Module (N = 18,124) to assess how parents feel in activities with children of different ages. Results show that parents are worse off with adolescent children relative to young children. Parents report the lowest levels of happiness with adolescents relative to younger children, and mothers report more stress and less meaning with adolescents. Controlling for contextual features of parenting including activity type, solo parenting, and restorative time does not fully account for the adolescent disadvantage in fathers' happiness or mothers' stress. This study highlights adolescence as a particularly difficult stage for parental well‐being and shows that mothers shoulder stress that fathers do not, even after accounting for differences in the context of their parenting activities.  相似文献   
98.
The Family Adaptability and Cohesion Scale (FACES) IV does not provide instructions about which family members respondents should think about while answering questions. This study examined which family members respondents thought about while completing the FACES IV, and if this changed measurement invariance and population heterogeneity of the measure. Using a sample of n = 511 individuals, a latent class analysis showed three distinct classes: Nuclear Family, Family of Origin, and All of the Above. The FACES IV demonstrated measurement invariance across classes on the majority of subscales; however, population heterogeneity tests suggested that the means and variances of the subscales varied across classes. The findings suggest further examination of how the measure functions with unique family constellations is warranted.  相似文献   
99.
Abstract

This article draws on oral histories from my PhD research to explore how six teenagers, now adults, remember their arrivals in Australia as child refugees from Bosnia. It examines their relationships with other people from Bosnia and the former Yugoslavia, including community groups, and how these relationships have changed over time. In examining these narratives, issues of intergenerational differences are highlighted, with interviewees positioning their experiences in relation to both their parents and their second-generation peers. Finally, it explores how former refugees maintain their relationships with family and friends in Bosnia, suggesting that these transnational connections provide them with as much familiarity and comfort as they do feelings of alienation.  相似文献   
100.
La mesure du travail des enfants est une entreprise difficile et incertaine, mais cruciale puisque le ciblage de l'aide en dépend. Dans ce contexte, l'auteure montre à partir de données tanzaniennes, et en utilisant deux définitions du travail des enfants, que le choix du répondant influe considérablement sur les chiffres obtenus, supérieurs de 35 à 65 pour cent quand ce sont les déclarations des enfants qui sont prises en compte plutôt que celles des adultes. Le biais touche 14 à 31 pour cent de l'échantillon. L'écart diminue avec l'âge de l'enfant et se creuse lorsque le répondant adulte est hostile au travail des enfants.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号