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Gene Wunderlich 《Rural sociology》1993,58(4):547-559
“The land question” as posed by Henry George a century ago was answered with a call for land reform, a change in the ownership and control of land. In present-day, market-oriented America the land question is answered with widely available land information for market and policy decisions. Information generated by the Agricultural Economics and Land Ownership Survey (AELOS) of the Census of Agriculture is a footing for analyzing land ownership, land transfers, property taxes, and other issues of land policy. In this paper the issues of ownership distribution and the distributive effects of taxation are defined with AELOS data. The AELOS shows that the distribution of land ownership is concentrated and shows that large landowners pay real property tax rates at less than half the rate of small landowners. Changes in land ownership, transfer, and taxation argue for repeating the AELOS in 1998. A case is presented for replacing the Census of Agriculture with a Census of Land in 2003. 相似文献
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Rex Forehand Deborah J. Jones Gene H. Brody Lisa Armistead 《Journal of marriage and the family》2002,64(4):1012-1023
This study examined the unique and interactive roles of mother and teacher depressive symptoms in child adjustment in 277 African American single mother‐headed families, as well as whether the associations differed depending on the age and gender of the child. Findings revealed a significant association between maternal depressive symptoms and child depressive symptoms in girls, but not boys. Moreover, the combination of higher levels of both mother and teacher depressive symptoms was associated with the highest level of child depressive symptoms and, for younger children, externalizing symptoms. The importance of considering the multiple social contexts in which children interact is discussed. 相似文献
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An internal pilot with interim analysis (IPIA) design combines interim power analysis (an internal pilot) with interim data analysis (two-stage group sequential). We provide IPIA methods for single df hypotheses within the Gaussian general linear model, including one and two group t tests. The design allows early stopping for efficacy and futility while also re-estimating sample size based on an interim variance estimate. Study planning in small samples requires the exact and computable forms reported here. The formulation gives fast and accurate calculations of power, Type I error rate, and expected sample size. 相似文献
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Gene Fellner Mark Comesañas Laritza Duperoy Yaritza Duperoy 《Disability & Society》2017,32(3):323-343
In this article, two adolescent sisters discuss and reflect upon the impact that the special education classification of one of them has had on their lives. The sisters, co-authors of this text, participated in designing the study and analyzing the data we produced; their voices are the core of this article. Issues about inclusion, the harms and benefits of special education classification, stigma, the multi-edged meanings of what it means to be “special,” and the often complicit roles of educators in perpetuating exclusionary policies all arise in the sisters’ discussions with each other, with their co-authors, and with pre-service teachers. 相似文献
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In this article, we consider the significance and practices of names and naming in adoption to develop understanding of the issue amongst scholars, policymakers, adoption practitioners, and adoption communities. Research on the topic of names and adoption is scarce and focused mostly on international and domestic adoptions in the United States. We draw on the research literature to critically explore names and naming in adoption through two recurrent and related themes. The first is “birth heritage,” where names, forenames especially, are shown to be important in the approach taken by adopters to their child's birth family and cultural identity. The second theme is “family‐making,” where namesaking and homogeneity of surname emerge, amongst others, as strategies to create, sustain, and display “family.” In gathering together for the first time an otherwise scattered, disparate body of research, our article showcases names and naming as illuminating distillations of key contemporary challenges experienced by families formed through adoption. We conclude our article by considering emergent gaps in existing knowledge and understanding about names, naming, and adoption that might usefully be addressed, to inform professional advice and familial decisions about names, and enhance outcomes for adoptees and their families. 相似文献
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David R. Williams Betty S. Coffey Carlton C. Young 《Journal of Management and Governance》2018,22(2):315-337
This paper examines the determinants of base pay and total incentive compensation packages of CEOs of biopharmaceutical firms that have recently gone public, and whether human capital and agency factors affect the market’s response to the initial public offering. We find that in terms of net proceeds, the IPO market appears to reward the firms that have founder-CEOs and CEOs with higher incentive compensation. CEOs with prior venture capital experience are associated with receiving higher incentive compensation, while CEOs with a greater ownership interest in the firm receive lower incentive compensation but higher salaries. CEOs of firms with a greater percentage of insiders are associated with lower salaries. The results should add to our understanding related to human capital and agency theories, as well as help firms and investors better understand and structure CEO compensation. 相似文献
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This article investigates how accurately experts (underwriters) and lay persons (university students) judge the risks posed by life-threatening events Only one prior study (Slovic, Fischhoff, & Lichtenstein, 1985) has previously investigated the veracity of expert versus lay judgments of the magnitude of risk. In that study, a heterogeneous grouping of 15 experts was found to judge, using marginal estimations, a variety of risks as closer to the true annual frequencies of death than convenience samples of the lay population. In this study, we use a larger, homogenous sample of experts performing an ecologically valid task. We also ask our respondents to assess frequencies and relative frequencies directly, rather than ask for a "risk" estimate--a response mode subject to possible qualitative attributions-as was done in the Slovic et al. study. Although we find that the experts outperformed lay persons on a number of measures, the differences are small, and both groups showed similar global biases in terms of: (1) overestimating the likelihood of dying from a condition (marginal probability) and of dying from a condition given that it happens to you (conditional probability), and (2) underestimating the ratios of marginal and conditional likelihoods between pairs of potentially lethal events. In spite of these scaling problems, both groups showed quite good performance in ordering the lethal events in terms of marginal and conditional likelihoods. We discuss the nature of expertise using a framework developed by Bolger and Wright (1994), and consider whether the commonsense assumption of the superiority of expert risk assessors in making magnitude judgments of risk is, in fact, sensible. 相似文献
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This continuing education course for professionals involved in all areas of clinical trials integrates concepts related to the role of randomization in the scientific process. The course includes two interactive lecture and discussion sections and a workshop practicum. The first interactive lecture introduces basic clinical trial issues and statistical principles such as bias, blinding, randomization, control groups, and the importance of formulating clear and discriminating clinical and statistical hypotheses. It then focuses on the most commonly used clinical study designs and the corresponding patient randomization schemes. The second interactive lecture focuses on the implementation of randomization of patients and drug supply through allocation and component ID schedules. The workshop practicum, conducted in small groups, enables students to apply the lecture concepts to real clinical studies. Flexibility was built into the workshop practicum materials to allow the course content to be customized to specific audiences, and the interactive lecture sessions can be stretched to cover more advanced topics according to class interest and time availability. 相似文献