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301.
We examine affective closeness, contact, and helping among adult siblings using data for over 1,500 respondents in 2‐child families from the National Survey of Families and Households. Using this subsample allows us to investigate differences by gender of respondent and of individual siblings using a nationally representative sample. We find that siblings are central to the lives of adults; most sibling relationships involve frequent contact and positive feelings. Sister pairs phone and exchange advice more often than do other sibling pairs. Women are more likely than men to report feeling close to or getting along with their sibling. We find no consistent differences in visiting. Giving and receiving help appear to reflect gendered forms of intimacy and of household labor. 相似文献
302.
Katherine E. von Stackelberg Dmitriy Burmistrov Donna J. Vorhees Todd S. Bridges Igor Linkov 《Risk analysis》2002,22(3):499-512
Biomagnification of organochlorine and other persistent organic contaminants by higher trophic level organisms represents one of the most significant sources of uncertainty and variability in evaluating potential risks associated with disposal of dredged materials. While it is important to distinguish between population variability (e.g., true population heterogeneity in fish weight, and lipid content) and uncertainty (e.g., measurement error), they can be operationally difficult to define separately in probabilistic estimates of human health and ecological risk. We propose a disaggregation of uncertain and variable parameters based on: (1) availability of supporting data; (2) the specific management and regulatory context (in this case, of the U.S. Army Corps of Engineers/U.S. Environmental Protection Agency tiered approach to dredged material management); and (3) professional judgment and experience in conducting probabilistic risk assessments. We describe and quantitatively evaluate several sources of uncertainty and variability in estimating risk to human health from trophic transfer of polychlorinated biphenyls (PCBs) using a case study of sediments obtained from the New York-New Jersey Harbor and being evaluated for disposal at an open water off-shore disposal site within the northeast region. The estimates of PCB concentrations in fish and dietary doses of PCBs to humans ingesting fish are expressed as distributions of values, of which the arithmetic mean or mode represents a particular fractile. The distribution of risk values is obtained using a food chain biomagnification model developed by Gobas by specifying distributions for input parameters disaggregated to represent either uncertainty or variability. Only those sources of uncertainty that could be quantified were included in the analysis. Results for several different two-dimensional Latin Hypercube analyses are provided to evaluate the influence of the uncertain versus variable disaggregation of model parameters. The analysis suggests that variability in human exposure parameters is greater than the uncertainty bounds on any particular fractile, given the described assumptions. 相似文献
303.
The dynamics of Young Men's career aspirations 总被引:1,自引:0,他引:1
Career aspirations have assumed a central place in our understanding of the process of social mobility, yet aspirations themselves have been subject to remarkably little scrutiny. We conduct an empirical analysis of the dynamics of aspirations in a cohort using data from the National Longitudinal Survey of Young Men. Our results indicate that (1) occupational aspirations decline with age; (2) the overwhelming majority of young men have high aspirations at some point; (3) occupational aspirations, highly unstable among teenagers, become more stable with age; and (4) differences by race and social origin grow with age, reflecting growing race and social class differences in educational attainment.An earlier draft of this paper was presented at the American Sociologial Association Annual Meeting, San Francisco, August 1989. 相似文献
304.
Michael J. Leiber Margaret Farnworth Katherine M. Jamieson Mahesh K. Nalla 《Sociological inquiry》1994,64(1):56-68
This study explores the empirical grounds for bridging the gender gap between liberation theories of female crime by integrating selected concepts from strain and liberation theses to explain female delinquency and gender differences in delinquency. Additive and interactive analyses were conducted with a sample of 1,613 adolescents. The findings provide little support for combining liberation and strain, primarily because of the inadequacy of liberated attitudes for strongly and consistently differentiating female delinquency. Strain, however, differed for males and females but was consistently and positively related to delinquency for both groups. 相似文献
305.
306.
Katherine Kersten 《Gender Issues》2002,20(2-3):57-60
On September 17, 2002, the Commission on Opportunity in Athletics held the second of four public meetings to hear testimony about Title IX and its current enforcement mechanisms. One of the panelists at the meeting, held in Chicago, was Katherine Kersten, senior fellow for cultural studies at Center of the American Experiment in Minneapolis, MN. According to Ms. Kersten, the “proportionality” test—currently used to determine compliance under Title IX—is a gender quota of the kind that the language of Title IX specifically rejects. In her view, the proportionality test needlessly limits male students' athletic opportunities. Ms. Kersten recommended that the Commission use statistical analysis to determine whether factors like campus demographics or differences in student interest—rather than discrimination—account for numerical disparities in men's and women's participation in college sports. On Junuary 31, 2003, the Commission released its report to Secretary of Education Rod Paige. Among other things, the report recommended that the Department of Education consider permitting colleges to use interest surveys as part of their planning for athletics. However, on February 28, 2003, Secretary Paige rejected this recommendation, along with all other recommendations that the commissioners did not approve, by unanimous vote. As a result, the Department will likely continue to use the proportionality test as a primary means of judging compliance under Title IX. Ms. Kersten's testimony—a critique of the proportionality test—is thus of continued relevance, and appears below. 相似文献
307.
Suicide rates are higher among those who own a handgun and among those who [corrected] live in a household with a hand gun. This article examines the association between [corrected] gun ownership and mental health, another risk factor for suicide. Data from the General Social Survey, a series of surveys of U.S. adults, are analyzed to compare general emotional and mental health, sadness and depression, functional mental health, and mental health help seeking among gun owners, persons who do not own but live in a household with a gun, and those who do not own a gun. After taking into account a few basic demographic characteristics associated with both variables, there appears to be no association between mental health and gun ownership. Nor is there any association between mental health and living in a household with a firearm. Findings suggest that the high risk of suicide among those who own or live in a household with a gun is not related to poor mental health. Implications for prevention are discussed. 相似文献
308.
309.
We investigated correlates of partner abuse in male same-sex relationships in a randomly selected community sample (N = 186). We included factors associated with abuse in heterosexual relationships, as well as factors of relevance to gay relationships. We assessed perpetration and receipt of partner abuse to examine whether variables were associated independently with abuse perpetration and/or receipt. Correlates of same-sex partner abuse were largely parallel to established correlates of heterosexual abuse. Income, education, and attachment orientation were associated with bidirectional partner abuse, and family violence and substance use were uniquely associated with victimization. Further, there were factors unique to same-sex partner abuse; HIV status and public outness were associated with bidirectional partner abuse, and internalized homophobia was uniquely associated with abuse perpetration. 相似文献
310.