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101.
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Effects of Risk and Time Preference and Expected Longevity on Demand for Medical Tests 总被引:1,自引:0,他引:1
Despite their conceptual importance, the effects of time preference, expected longevity, uncertainty, and risk aversion on behavior have not been analyzed empirically. We use data from the Health and Retirement Study (HRS) to assess the role of risk and time preference, expected longevity, and education on demand for three measures used for early detection of breast and cervical cancer—regular breast self-exams, mammograms, and Pap smears. We find that individuals with a higher life expectancy and lower time preference are more likely to undergo cancer screening. Less risk averse individuals tend to be more likely to undergo testing. 相似文献
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Previous studies on ethnic intermarriage have been done mainly in the United States and in other classical immigration countries. This article examines ethnic intermarriage among Surinamese, Dutch Antilleans, Turks, and Moroccans in the Netherlands. From a theoretical and empirical perspective, it is important to examine whether patterns observed earlier in traditional immigrant countries equally apply to the Dutch context. To obtain a sufficiently large sample, this study pools five nationally representative surveys, conducted in the period 1988–2002. In line with findings documented before, it observes that ethnic exogamy occurs more frequently among the second generation, and among those who arrived at a younger age, and who are higher educated. Equally corresponding to previous work, the study reports that ethnic intermarriage is more frequent when the group-specific sex ratio is more uneven and when the ethnic group is predominantly second generation. Contrary to findings observed elsewhere, results show that the black Surinamese and Dutch Antilleans have high intermarriage rates and that there is little evidence for status exchange in mixed marriages. 相似文献
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Frank Nestmann 《Gruppendynamik und Organisationsberatung》2005,36(4):443-469
Pets are not only family members. For a lot of people in all stages of life cycle, pets are important sources of support. They are able to contribute to our health as well as to buffer stress and illness in our lives. The may be seen as important agents of socialisation and development of children and as friendly companions of the elderly. The article reviews the state of knowledge in positive aspects of human animal bonds and develops a bio-psycho-social panorama of effects. 相似文献
108.
Brian Karl Finch Reanne Frank William A. Vega 《The International migration review》2004,38(1):236-262
Utilizing a cluster sampling design to maximize representativeness, we look at the health effects of acculturation and acculturation stressors among 1,001 adult migrant farmworkers in Fresno, California. Using self‐ratings of mental and physical health as well as the CES‐D depression scale, we find that the amount of time one spends in the United States, the level of English‐language usage, as well as the intensity of acculturation stresses that one reports, are all related to declines in health. In addition, acculturation stress has more deleterious effects on self‐rated health (both physical and mental) among the more highly acculturated. 相似文献
109.
Social scientists are rarely able to gather data from the full range of contexts to which they hope to generalize ( Shadish, Cook, and Campbell 2002 ). Here we suggest that debates about the generality of causal inferences in the social sciences can be informed by quantifying the conditions necessary to invalidate an inference. We begin by differentiating the target population into two subpopulations: a potentially observed subpopulation from which all of a sample is drawn and a potentially unobserved subpopulation from which no members of the sample are drawn but which is part of the population to which policymakers seek to generalize. We then quantify the robustness of an inference in terms of the conditions necessary to invalidate an inference if cases from the potentially unobserved subpopulation were included in the sample. We apply the indices to inferences regarding the positive effect of small classes on achievement from the Tennessee class size study and then consider the breadth of external validity. We use the statistical test for whether there is a difference in effects between two subpopulations as a baseline to evaluate robustness, and we consider a Bayesian motivation for the indices and compare the use of the indices with other procedures. In the discussion we emphasize the value of quantifying robustness, consider the value of different quantitative thresholds, and conclude by extending a metaphor linking statistical and causal inferences. 相似文献
110.
A Model of Choice for Public Policy 总被引:4,自引:0,他引:4
Punctuated equilibrium is supposed to be a viable alternativeto incrementalism, and, indeed, the authors of the model havesometimes made such claims. But punctuated equilibrium was developedto explain change in policy subsystems and does not serve asa complete model of policy choice in the same way that incrementalismhas served. This article develops a full-blown and viable modelof choice for public policy based on disproportionate informationprocessing. Its dynamics are based in the allocation of politicalattention to policy topics and the manner in which politicalsystems process information. The model leads directly to outcomesthat are consistent with punctuated equilibrium and are notgenerally consistent with incrementalism. Incrementalism, however,may be deduced from the model as a special case. The model isbest tested using stochastic process approaches. Incrementalismlogically must yield a normal distribution of outcomes, butdisproportionate information processing yields leptokurtic outcomes.Adding institutional constraints only makes the stochastic processimplications more severe. To support our arguments, we presentboth static and dynamic simulations of these processes. We alsoshow that these simulations are consistent with observationsof U.S. government budgets. 相似文献