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991.
OBJECTIVE: The authors aimed to develop a measure of college students' intoxicated behaviors and to validate the measure using scales assessing alcohol outcome expectancies, motives for drinking, and personality traits. PARTICIPANTS AND METHOD SUMMARY: The authors administered these measures and an inventory describing 50 intoxicated behaviors to 198 college students and conducted factor analysis on intoxicated behaviors. Logistic regression models examined relationships between intoxicated behavior dimensions and expectances, motives, and personality traits. RESULTS: Self-reported behaviors during intoxication episodes were reducible to 3 basic dimensions that formed reliable and valid scales: social, antisocial, and emotionally labile intoxication. CONCLUSIONS: Researchers can use the Intoxicated Behaviors Inventory to evaluate the effectiveness of interventions targeting drinking or to identify college students at risk for problematic consequences of alcohol use. In addition, results point to the need for community efforts to encourage more moderate drinking among college students. 相似文献
992.
Using data from a 2005 national survey of working adults in the United States, we examine the effects of the gender composition of the superordinate-subordinate role-set on mental and physical health measures. Subordinates' and superordinates' genders are important determinants. Men who work in gender-mixed superordinate contexts (i.e., with one male and one female superior) report lower levels of distress and physical symptoms than men who work with one male superior. Women who work with one male superior report less distress and fewer physical symptoms compared to women who work with one female superior or in gender-mixed superordinate contexts. With a few exceptions, these observations generally hold net of occupation, job sector, and an array of work-related conditions. We discuss the implications of these findings in light of predictions derived from the similarity-attraction and role congruity theories. We also outline ways that theoretical development in relational demography can be refined by a more specific focus on the demographic characteristics--especially gender--of the superordinate-subordinate role-set. 相似文献
993.
Julia E. Kelsall Scott L. Zeger & Jonathan M. Samet 《Journal of the Royal Statistical Society. Series C, Applied statistics》1999,48(3):331-344
Motivated by a study of the association between counts of daily mortality and air pollution, we present a frequency domain estimation approach for log-linear models that accounts for both overdispersion and autocorrelation. The methods also allow for the discounting or downweighting of information at particular frequencies at which, for example, confounding variables are likely to have greatest influence. This allows flexible sensitivity analyses to be carried out to assess the possible effect of confounders on the estimated effect. We apply the methods to estimate the association between counts of mortality and the concentration of airborne particles in Philadelphia, USA, for the years 1974–1988. We obtain an estimated effect of particulate air pollution on mortality that is significantly greater than zero but less than that obtained by a standard log-linear analysis. 相似文献
994.
Simplifying Regression Models Using Dimensional Analysis 总被引:1,自引:0,他引:1
Dimensional analysis can make a contribution to model formulation when some of the measurements in the problem are of physical factors. The analysis constructs a set of independent dimensionless factors that should be used as the variables of the regression in place of the original measurements. There are fewer of these than the originals and they often have a more appropriate interpretation. The technique is described briefly and its proposed role in regression discussed and illustrated with examples. We conclude that dimensional analysis can be effective in the preliminary stages of regression analysis whendeveloping formulations involving continuous variables with several dimensions. 相似文献
995.
Scott Sumner 《Economic inquiry》1999,37(3):527-540
This paper shows that many of the most distinctive features of Keynesian economics are best understood if one views the General Theory as essentially a gold standard model. A close examination of Keynes's statements on contemporaneous policy issues suggests that the gold standard had a profound impact on his views on monetary policy effectiveness. In particular, I show that the liquidity trap has been widely misunderstood. Finally, I argue that post–General Theory developments in Keynesian economics are best understood as a response to the inapplicability of Keynes's original message to a world of fiat money regimes. ( JEL B22, E12, N1) 相似文献
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998.
Much of the considerable confusion about the definition of social entrepreneurship in academic literature stems from a lack of empirical research on the subject. This article advances social entrepreneurship research beyond conceptualization discussions by developing and validating an instrument that quantifies the incidence of nonprofit entrepreneurial behavior. Information from 145 Kansas City Metropolitan Area nonprofit organizations was collected to validate the underlying constructs represented in the instrument. Behavior differences were depicted between entrepreneurial and nonentrepreneurial nonprofits. Using principal component factor analysis, the research illustrates social entrepreneurship as a unique nonprofit behavior that occurs at the intersection of innovation, proactiveness, and risk taking. 相似文献
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Scott M. Stanley Galena K. Rhoades Paul R. Amato Howard J. Markman Christine A. Johnson 《Journal of marriage and the family》2010,72(4):906-918
Using a multistate sample of marriages that took place in the 1990s, this study examined associations between premarital cohabitation history and marital quality in first (N = 437) and second marriages (N = 200) and marital instability in first marriages (intact N = 521, divorced N = 124). For first marriages, cohabiting with the spouse without first being engaged or married was associated with more negative interaction, higher self‐reported divorce proneness, and a greater probability of divorce compared to cohabiting after engagement or marriage (with patterns in the same direction for marital positivity). In contrast, there was a general risk associated with premarital cohabitation for second marriages on self‐reported indices of marital quality, with or without engagement when cohabitation began. 相似文献