首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   308篇
  免费   10篇
管理学   39篇
人口学   18篇
丛书文集   1篇
理论方法论   26篇
综合类   9篇
社会学   161篇
统计学   64篇
  2023年   5篇
  2022年   2篇
  2020年   3篇
  2019年   9篇
  2018年   6篇
  2017年   5篇
  2016年   13篇
  2015年   4篇
  2014年   10篇
  2013年   70篇
  2012年   9篇
  2011年   10篇
  2010年   7篇
  2009年   7篇
  2008年   5篇
  2007年   4篇
  2006年   9篇
  2005年   5篇
  2004年   7篇
  2003年   6篇
  2002年   6篇
  2001年   5篇
  2000年   2篇
  1999年   9篇
  1998年   8篇
  1997年   6篇
  1996年   5篇
  1995年   4篇
  1994年   4篇
  1993年   3篇
  1992年   4篇
  1991年   3篇
  1990年   7篇
  1989年   6篇
  1988年   2篇
  1987年   3篇
  1986年   2篇
  1984年   2篇
  1983年   5篇
  1981年   6篇
  1980年   6篇
  1979年   5篇
  1977年   2篇
  1976年   1篇
  1975年   4篇
  1974年   1篇
  1970年   2篇
  1969年   3篇
  1968年   3篇
  1967年   1篇
排序方式: 共有318条查询结果,搜索用时 15 毫秒
21.
There is a critical shortage of publication space available to sociologists, compared to scholars in other fields. This results in invidious publication comparisons to other professionals and damage to the careers of younger sociologists. Further, it results in a loss to the field itself in terms of a lesser likelihood of publication of replications, challenges, and controversial or unorthodox works. Several proposals are made for increasing the publication potential of sociologists. His teaching and research interests have been in social psychology (especially alienation), the family, and the sociology of religion.  相似文献   
22.
23.
Graham  John D.  Beaulieu  Nancy Dean  Sussman  Dana  Sadowitz  March  Li  Yi-Ching 《Risk analysis》1999,19(2):171-186
Facility-specific information on pollution was obtained for 36 coke plants and 46 oil refineries in the United States and matched with information on populations surrounding these 82 facilities. These data were analyzed to determine whether environmental inequities were present, whether they were more economic or racial in nature, and whether the racial composition of nearby communities has changed significantly since plants began operations.The Census tracts near coke plants have a disproportionate share of poor and nonwhite residents. Multivariate analyses suggest that existing inequities are primarily economic in nature. The findings for oil refineries are not strongly supportive of the environmental inequity hypothesis. Rank ordering of facilities by race, poverty, and pollution produces limited (although not consistent) evidence that the more risky facilities tend to be operating in communities with above-median proportions of nonwhite residents (near coke plants) and Hispanic residents (near oil refineries). Over time, the racial makeup of many communities near facilities has changed significantly, particularly in the case of coke plants sited in the early 1900s. Further risk-oriented studies of multiple manufacturing facilities in various industrial sectors of the economy are recommended.The authors are all affiliated with the Harvard Center for Risk Analysis  相似文献   
24.
Social life is filled with problems — situations that are perceived and defined as problems by individuals as they interact with each other. As such, these problems are often of more concern to those individuals than are other matters. The sociologist can gain insight into the structure of social relations by focusing the investigation on those problems rather than directly on the underlying structure. That is, the discussion of the problems that those being studied see in their situation or setting is revealing of the structured relations in those settings. This approach to doing social research is illustrated by two of the author's studies — one a study of an emergency department, and the second a study of how commercial art galleries affect the production and consumption of art.  相似文献   
25.
This paper proposes a Poisson‐based model that uses both error‐free data and error‐prone data subject to misclassification in the form of false‐negative and false‐positive counts. It derives maximum likelihood estimators (MLEs) for the Poisson rate parameter and the two misclassification parameters — the false‐negative parameter and the false‐positive parameter. It also derives expressions for the information matrix and the asymptotic variances of the MLE for the rate parameter, the MLE for the false‐positive parameter, and the MLE for the false‐negative parameter. Using these expressions the paper analyses the value of the fallible data. It studies characteristics of the new double‐sampling rate estimator via a simulation experiment and applies the new MLE estimators and confidence intervals to a real dataset.  相似文献   
26.
We formulate Bayesian approaches to the problems of determining the required sample size for Bayesian interval estimators of a predetermined length for a single Poisson rate, for the difference between two Poisson rates, and for the ratio of two Poisson rates. We demonstrate the efficacy of our Bayesian-based sample-size determination method with two real-data quality-control examples and compare the results to frequentist sample-size determination methods.  相似文献   
27.
Summary.  An authentic food is one that is what it purports to be. Food processors and consumers need to be assured that, when they pay for a specific product or ingredient, they are receiving exactly what they pay for. Classification methods are an important tool in food authenticity studies where they are used to assign food samples of unknown type to known types. A classification method is developed where the classification rule is estimated by using both the labelled and the unlabelled data, in contrast with many classical methods which use only the labelled data for estimation. This methodology models the data as arising from a Gaussian mixture model with parsimonious covariance structure, as is done in model-based clustering. A missing data formulation of the mixture model is used and the models are fitted by using the EM and classification EM algorithms. The methods are applied to the analysis of spectra of food-stuffs recorded over the visible and near infra-red wavelength range in food authenticity studies. A comparison of the performance of model-based discriminant analysis and the method of classification proposed is given. The classification method proposed is shown to yield very good misclassification rates. The correct classification rate was observed to be as much as 15% higher than the correct classification rate for model-based discriminant analysis.  相似文献   
28.
The analysis of Durkheim in The Structure of Social Action is integral to Parsons's discussion of the utilitarian-positivist tradition and the emergence of a voluntaristic theory of action from it. The four “stages” of theoretical argument in Durkheim can be related directly to the four defining elements of the “utilitarian dilemma,” namely empiricism, rationality, atomism, and the randomness of ends. The most questionable aspect of Parsons's argument is the alleged stubbornness of Durkheim's empiricism. On the other hand, much of the criticism of Parsons's argument, by Pope in particular, although also by Scott and Warner, Is either misdirected or itself questionable. The development and conclusions of Durkheim's moral sociology are as Parsons claims, and form a viable basis for a non-positivist theory of action.  相似文献   
29.
A principal components analysis performed by David M. Smith on 47 U.S. state level indicators of social well-being yielded several components. The first two of these are socio-economic well-being and social pathology. Structural hypotheses are offered to explain state differences in these components. The structural variables condensed by a principal components analysis of state political, economic and social structure measures are differentiation, flexibility-rigidity, and progressive industrialization. These, along with several population measures, determine a substantial part of the variance in the two measures of social well-being.  相似文献   
30.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号