全文获取类型
收费全文 | 3073篇 |
免费 | 81篇 |
专业分类
管理学 | 481篇 |
民族学 | 24篇 |
人才学 | 1篇 |
人口学 | 269篇 |
丛书文集 | 27篇 |
理论方法论 | 308篇 |
综合类 | 34篇 |
社会学 | 1596篇 |
统计学 | 414篇 |
出版年
2023年 | 24篇 |
2022年 | 18篇 |
2021年 | 30篇 |
2020年 | 72篇 |
2019年 | 77篇 |
2018年 | 91篇 |
2017年 | 129篇 |
2016年 | 116篇 |
2015年 | 84篇 |
2014年 | 93篇 |
2013年 | 460篇 |
2012年 | 126篇 |
2011年 | 112篇 |
2010年 | 75篇 |
2009年 | 96篇 |
2008年 | 90篇 |
2007年 | 77篇 |
2006年 | 83篇 |
2005年 | 98篇 |
2004年 | 97篇 |
2003年 | 86篇 |
2002年 | 86篇 |
2001年 | 85篇 |
2000年 | 70篇 |
1999年 | 51篇 |
1998年 | 38篇 |
1997年 | 33篇 |
1996年 | 47篇 |
1995年 | 36篇 |
1994年 | 34篇 |
1993年 | 52篇 |
1992年 | 39篇 |
1991年 | 35篇 |
1990年 | 26篇 |
1989年 | 22篇 |
1988年 | 24篇 |
1987年 | 24篇 |
1986年 | 23篇 |
1985年 | 22篇 |
1984年 | 32篇 |
1983年 | 24篇 |
1982年 | 28篇 |
1981年 | 20篇 |
1980年 | 20篇 |
1979年 | 21篇 |
1978年 | 13篇 |
1977年 | 22篇 |
1975年 | 21篇 |
1974年 | 19篇 |
1973年 | 10篇 |
排序方式: 共有3154条查询结果,搜索用时 0 毫秒
181.
182.
183.
Thomas A. Martens 《Nonprofit management & leadership》1996,7(2):181-192
This article reports on a study of the newsworthiness of information about nonprofit organizations and issues. The two-part study included content analysis of news stories in the 1991 editions of the San Francisco Chronicle and interview with editors and reporters at the paper. 相似文献
184.
Abstract In recent years, several agricultural cooperatives have undergone significant restructuring. Some have been taken through a conversion process and have been reorganized as “investor-oriented firms” (IOFs). This phenomenon has attracted the interest of agricultural economists, but it has not been analyzed by sociologists. This article examines the discourse with which agricultural economists have approached the conversion issue. Drawing upon Fraser's discussion of “needs talk,” and inspired by Kloppenburg's analysis of the agricultural scientific complex, an argument is made that a reprivatization discourse of neoclassical economics has effectively depoliticized discussion about the future of cooperative enterprise. It is further argued that a repoliticization of cooperation is necessary in order to assure the protection of extra-economic values and oppositional discourse that is embedded in the historical development of cooperative practices and institutions. We focus here on the role of expert discourse as it relates to the reinvention of cooperative institutions in the agricultural economy. It is argued that this discourse would be improved by greater attention to historical and sociological forces, rather than remaining narrowly focused on economism. 相似文献
185.
Frequency of Citations as Criterion for the Ranking of Departments, Journals, and Individuals 总被引:1,自引:0,他引:1
Interest in the structure and dynamics of sociology as a discipline has led to recurrent attempts to measure the prestige, productivity, and quality of education of the various sociology departments. While several previous papers have suggested the potential value of the Science Citation Index (SCI) as a measure of scientific standing, few attempts have been made to utilize a citation-based measure of scientific prestige. This paper considers the meaning of the citation in science and in stratification theory. Procedures are described whereby citations to individual sociologists and journals are employed to yield rankings of departments of sociology and journals. The differences between these rankings and other rankings are discussed. 相似文献
186.
187.
Thomas F. Johnson 《Journal of marital and family therapy》1977,3(4):33-38
The exhibiting of the genitals by males has previously been defined as symptomatic of narcissism and infantile sexuality. Viewed as a developmental anomaly of emotional life, treatment has been focused upon stimulating personal development by working out the problems which have inhibited maturation. Results have been discouraging. As an alternative, defining the problem as symptomatic of disturbances in basic relationships and treating the current central relationships as the focus offers a strong opportunity for inducing satisfactory changes. 相似文献
188.
189.
Thomas J. Santner 《Journal of statistical planning and inference》1981,5(1):45-55
This paper considers the problem of devising a single stage procedure for selecting the treatment combination associated with the largest interaction in a two-factor rfx× c experiment having independent normally distributed observations with common known variance. The intuitive procedure based on the best linear unbiased estimators of the population interactions is employed. Initially an indifference zone formulation is used; the problem of determining the least favorable configuration is reduced to a nonlinear programming problem with log concave objective function and a convex polytope as feasible region. A solution technique is introduced in the context of an illustrative example. The problem is also considered using a preferred population formulation; this approach requires a strengthened version of the indifference zone probability requirement. It is shown that the same sample size guarantees this requirement as does the earlier one. 相似文献
190.
Combining Food Frequency and Survey Data to Quantify Long-Term Dietary Exposure: A Methyl Mercury Case Study 总被引:2,自引:0,他引:2
Twenty-four-hour recall data from the Continuing Survey of Food Intake by Individuals (CSFII) are frequently used to estimate dietary exposure for risk assessment. Food frequency questionnaires are traditional instruments of epidemiological research; however, their application in dietary exposure and risk assessment has been limited. This article presents a probabilistic method of bridging the National Health and Nutrition Examination Survey (NHANES) food frequency and the CSFII data to estimate longitudinal (usual) intake, using a case study of seafood mercury exposures for two population subgroups (females 16 to 49 years and children 1 to 5 years). Two hundred forty-nine CSFII food codes were mapped into 28 NHANES fish/shellfish categories. FDA and state/local seafood mercury data were used. A uniform distribution with minimum and maximum blood-diet ratios of 0.66 to 1.07 was assumed. A probabilistic assessment was conducted to estimate distributions of individual 30-day average daily fish/shellfish intakes, methyl mercury exposure, and blood levels. The upper percentile estimates of fish and shellfish intakes based on the 30-day daily averages were lower than those based on two- and three-day daily averages. These results support previous findings that distributions of "usual" intakes based on a small number of consumption days provide overestimates in the upper percentiles. About 10% of the females (16 to 49 years) and children (1 to 5 years) may be exposed to mercury levels above the EPA's RfD. The predicted 75th and 90th percentile blood mercury levels for the females in the 16-to-49-year group were similar to those reported by NHANES. The predicted 90th percentile blood mercury levels for children in the 1-to-5-year subgroup was similar to NHANES and the 75th percentile estimates were slightly above the NHANES. 相似文献