全文获取类型
收费全文 | 1126篇 |
免费 | 26篇 |
专业分类
管理学 | 133篇 |
民族学 | 4篇 |
人才学 | 1篇 |
人口学 | 75篇 |
丛书文集 | 4篇 |
理论方法论 | 116篇 |
综合类 | 8篇 |
社会学 | 584篇 |
统计学 | 227篇 |
出版年
2023年 | 7篇 |
2022年 | 5篇 |
2021年 | 5篇 |
2020年 | 15篇 |
2019年 | 18篇 |
2018年 | 18篇 |
2017年 | 31篇 |
2016年 | 26篇 |
2015年 | 26篇 |
2014年 | 31篇 |
2013年 | 171篇 |
2012年 | 27篇 |
2011年 | 37篇 |
2010年 | 26篇 |
2009年 | 25篇 |
2008年 | 39篇 |
2007年 | 38篇 |
2006年 | 39篇 |
2005年 | 43篇 |
2004年 | 27篇 |
2003年 | 31篇 |
2002年 | 38篇 |
2001年 | 24篇 |
2000年 | 35篇 |
1999年 | 24篇 |
1998年 | 20篇 |
1997年 | 18篇 |
1996年 | 10篇 |
1995年 | 17篇 |
1994年 | 20篇 |
1993年 | 15篇 |
1992年 | 20篇 |
1991年 | 14篇 |
1990年 | 20篇 |
1989年 | 13篇 |
1988年 | 9篇 |
1987年 | 11篇 |
1986年 | 15篇 |
1985年 | 13篇 |
1984年 | 13篇 |
1983年 | 19篇 |
1982年 | 10篇 |
1981年 | 15篇 |
1980年 | 10篇 |
1979年 | 8篇 |
1978年 | 15篇 |
1977年 | 10篇 |
1976年 | 4篇 |
1974年 | 4篇 |
1973年 | 5篇 |
排序方式: 共有1152条查询结果,搜索用时 15 毫秒
21.
Business establishment microdata typically are required to satisfy agency-specified edit rules, such as balance equations and linear inequalities. Inevitably some establishments' reported data violate the edit rules. Statistical agencies correct faulty values using a process known as edit-imputation. Business establishment data also must be heavily redacted before being shared with the public; indeed, confidentiality concerns lead many agencies not to share establishment microdata as unrestricted access files. When microdata must be heavily redacted, one approach is to create synthetic data, as done in the U.S. Longitudinal Business Database and the German IAB Establishment Panel. This article presents the first implementation of a fully integrated approach to edit-imputation and data synthesis. We illustrate the approach on data from the U.S. Census of Manufactures and present a variety of evaluations of the utility of the synthetic data. The paper also presents assessments of disclosure risks for several intruder attacks. We find that the synthetic data preserve important distributional features from the post-editing confidential microdata, and have low risks for the various attacks. 相似文献
22.
Alan Prout 《Children & Society》2019,33(4):309-315
23.
Alan Fowler 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2012,23(1):5-25
International comparative research on civil society has subordinated Africa’s diversity and specificities to other geographies
and histories. Results are prejudiced global conceptualisations, questionable enumeration, problematic theory formulation
and ill-conceived approaches to development initiatives intended to make African civil society ‘stronger’ and states more
democratic. This article sets out a case for an endogenous approach to civil society enquiry as a political category sensitive
to the continent’s particularisms. In order to locate discussion about meanings, measures and measuring, a conceptual framework
for research is described which avoids conflation with other epistemologies. Such a contribution will assist in sharpening
thinking and discussion about the boundary characteristics of what is to be investigated. 相似文献
24.
25.
Alan T. Peacock 《Population studies》2013,67(3):298-305
The persistence of the population problem in many developing countries' especially in Asia, must mean that the relation between population trends and productivity has to be kept continually under review. In recent years the economists' interest in this relation has shifted away from the Keynesian stagnation analysis, with its emphasis on the influence of population trends on the level and composition of consumption and investment, to a reconsideration of their influence on production. It is a striking testimony to the influence of Malthus that his theory is still under active consideration and that it frequently serves as starting point, as it does for Professor Belshaw, for an analysis of the economics of population. Divorced from its particular context, in which value judgements particularly distasteful to many commentators abound, and reformulated in terms of modern production theory, it clarifies the main issues, by showing what facts are required and what logic demands in order to provide a useful answer to practical problems of policy. Readers of the first two chapters of Professor Buquet's book will find ample confirmation of the sterility of much of the debate regarding optimum populations which developed largely from differences of opinion about definitions of “good” and “bad” economic criteria for policy than from faults in logic. The debate continues and the posthumous career of Parson Malthus still occasions even personal abuse! It would be difficult, however, to accuse Professor Belshaw of taking sides in the Malthusian debate. He takes the Malthusian analysis for what it is worth, shows where it fits the facts and where it does not, provides convincing evidence of a Malthusian problem in Asia by a skilful round-up of well presented statistics, and then, instead of committing himself to a forecast of what is likely to happen in Asia, he illustrates through the modern theory of production what are the pre-conditions for a removal of the population problem. This is surely a sensible procedure and contrasts favourably with the sibylline utterances of a number of distinguished amateur social scientists. 相似文献
26.
Alan M. Schwitzer PhD Lee Ellen Rodriguez MS Celeste Thomas MS Lamieh Salimi PhD 《Journal of American college health : J of ACH》2013,61(4):157-166
Abstract The authors examined a proposed profile of eating-related behaviors, associated features, developmental issues, and help-seeking behavior among college women, using an eating disorder response program. The most common symptom scenario was a pattern of regular binge eating, together with daily exercise and occasional purging. The most common associated features were distressing or dysfunctional overconcern about body image and self-esteem, usually with day-to-day stress and intermittent depression. The women who fit this pattern also presented developmental issues of perfectionism, conflictual relationships with parents, and struggles for independence; and they tended to be ambivalent about seeking services. Implications for practice, including the need to develop a framework for eating disorder responses on campus that includes preventive programs and developmental interventions to target emerging and moderate concerns are discussed; limitations and the preliminary nature of the findings are explicated. 相似文献
27.
Public Organization Review - Facing the reflexive modernity, social wealth production is systematically correlated with the production of social and technical problems. Due to the complexity... 相似文献
28.
Exploring Parameter Relations for Multi‐Stage Models in Stage‐Wise Constant and Time Dependent Hazard Rates
下载免费PDF全文
![点击此处可从《Australian & New Zealand Journal of Statistics》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Single cohort stage‐frequency data are considered when assessing the stage reached by individuals through destructive sampling. For this type of data, when all hazard rates are assumed constant and equal, Laplace transform methods have been applied in the past to estimate the parameters in each stage‐duration distribution and the overall hazard rates. If hazard rates are not all equal, estimating stage‐duration parameters using Laplace transform methods becomes complex. In this paper, two new models are proposed to estimate stage‐dependent maturation parameters using Laplace transform methods where non‐trivial hazard rates apply. The first model encompasses hazard rates that are constant within each stage but vary between stages. The second model encompasses time‐dependent hazard rates within stages. Moreover, this paper introduces a method for estimating the hazard rate in each stage for the stage‐wise constant hazard rates model. This work presents methods that could be used in specific types of laboratory studies, but the main motivation is to explore the relationships between stage maturation parameters that, in future work, could be exploited in applying Bayesian approaches. The application of the methodology in each model is evaluated using simulated data in order to illustrate the structure of these models. 相似文献
29.
This article considers a nonparametric additive seemingly unrelated regression model with autoregressive errors, and develops estimation and inference procedures for this model. Our proposed method first estimates the unknown functions by combining polynomial spline series approximations with least squares, and then uses the fitted residuals together with the smoothly clipped absolute deviation (SCAD) penalty to identify the error structure and estimate the unknown autoregressive coefficients. Based on the polynomial spline series estimator and the fitted error structure, a two-stage local polynomial improved estimator for the unknown functions of the mean is further developed. Our procedure applies a prewhitening transformation of the dependent variable, and also takes into account the contemporaneous correlations across equations. We show that the resulting estimator possesses an oracle property, and is asymptotically more efficient than estimators that neglect the autocorrelation and/or contemporaneous correlations of errors. We investigate the small sample properties of the proposed procedure in a simulation study. 相似文献
30.
This paper examines some central themes about change in consumption behaviour through an empirical investigation of the practice of eating. It analyses patterns of food consumption in the UK using time diary data from 1975 and 2000. The practice of eating is decomposed into four component activities which are used to explore systematically the inter-relationships between social processes - such as commodification and temporal fragmentation - and ways of providing and consuming food. It charts the expansion of eating out, the degree to which it substitutes for other eating activities, and the implications of its development for social relations and the temporal organization of daily life. Analysis reveals that food consumption continues to be differentiated along established lines of social division, although the content of those divisions has changed and varies across components of the practice. Increasing commodification of the food chain is documented, but without appearing to have a corrosive impact on household organization or social relationships. While tendencies indicative of temporal fragmentation are revealed, counter-tendencies exist which suggest that the practice of eating is resilient to many forms of external pressure. Finally, the application of a practice-based analytical approach permits critical evaluation of theories of social transformation. 相似文献