全文获取类型
收费全文 | 9406篇 |
免费 | 253篇 |
专业分类
管理学 | 1384篇 |
民族学 | 44篇 |
人才学 | 1篇 |
人口学 | 881篇 |
丛书文集 | 51篇 |
理论方法论 | 818篇 |
综合类 | 413篇 |
社会学 | 4063篇 |
统计学 | 2004篇 |
出版年
2023年 | 58篇 |
2022年 | 50篇 |
2021年 | 69篇 |
2020年 | 139篇 |
2019年 | 189篇 |
2018年 | 230篇 |
2017年 | 333篇 |
2016年 | 267篇 |
2015年 | 191篇 |
2014年 | 235篇 |
2013年 | 1532篇 |
2012年 | 482篇 |
2011年 | 281篇 |
2010年 | 220篇 |
2009年 | 205篇 |
2008年 | 230篇 |
2007年 | 224篇 |
2006年 | 170篇 |
2005年 | 238篇 |
2004年 | 262篇 |
2003年 | 301篇 |
2002年 | 299篇 |
2001年 | 258篇 |
2000年 | 221篇 |
1999年 | 194篇 |
1998年 | 148篇 |
1997年 | 117篇 |
1996年 | 137篇 |
1995年 | 111篇 |
1994年 | 103篇 |
1993年 | 110篇 |
1992年 | 137篇 |
1991年 | 123篇 |
1990年 | 119篇 |
1989年 | 109篇 |
1988年 | 115篇 |
1987年 | 119篇 |
1986年 | 104篇 |
1985年 | 124篇 |
1984年 | 102篇 |
1983年 | 110篇 |
1982年 | 79篇 |
1981年 | 80篇 |
1980年 | 74篇 |
1979年 | 76篇 |
1978年 | 82篇 |
1977年 | 55篇 |
1976年 | 46篇 |
1975年 | 61篇 |
1974年 | 50篇 |
排序方式: 共有9659条查询结果,搜索用时 15 毫秒
81.
THE SOLUTION-ORIENTED GENOGRAM: A COLLABORATIVE APPROACH 总被引:1,自引:0,他引:1
Bruce P. Kuehl 《Journal of marital and family therapy》1995,21(3):239-250
Developed primarily by Bowenian intergenerational therapists, genograms have evolved into largely atheoretical tools used by many therapists. Given that constructivist-based therapies have become the most popular genre of contemporary family therapies (Sprenkle & Piercy, 1992), the author examines how genograms can be used to augment a solution-oriented approach. Specific interventions, case examples, and potential problems associated with such an approach are discussed, along with potential implications for family-of-origin work. 相似文献
82.
V.P. Kultygin 《International Journal of Social Welfare》1993,2(3):142-149
The article describes the socioeconomic situation of the Russian population and its dynamics in 1992. The analysis is based on series of regional sociological surveys led by the All-Russian Living Standards Research Center and on official Russian statistical data. The basic unit of analysis is the family, and hence family typology approbated both in research and in practical social work is introduced. Besides describing and discussing the growing poverty tendencies in contemporary Russia, the article also contains methodological recommendations for social policy bodies and social workers on the strategy of work in social maintenance and social support of the least secure population strata. 相似文献
83.
84.
Abstract The objective of this study is to examine female labor force participation and its determinants in rural and urban China. The sociological literature has demonstrated that participation tends to increase in urban and industrialized places where women have higher levels of education and fewer children, where more workers are engaged in service pursuits, and where family structure is less traditional. With the use of data on counties and cities (N = 2,377) from the I-percent sample of the 1982 census of the People's Republic of China, it was found that female labor force participation is likely to rise in areas with increased agricultural employment, educational levels, proportion of female-headed households, and higher male-to-female sex ratios. Both the size of the service sector and the fertility rate had negligible effects on female labor force participation. Although, on average, rural places have slightly higher levels of female labor force participation, when other variables are controlled, urban places have a higher rate of female participation. In addition, the findings suggest that market factors (i.e., education) are more likely to determine the rate of female labor force participation in urban areas; whereas demographic and social factors (i.e., sex ratio and household structure) play a more important role in explaining the female labor force participation in rural counties. 相似文献
85.
86.
Bhaswati Ganguli John Staudenmayer M.P. Wand 《Australian & New Zealand Journal of Statistics》2005,47(2):193-202
This paper develops a likelihood‐based method for fitting additive models in the presence of measurement error. It formulates the additive model using the linear mixed model representation of penalized splines. In the presence of a structural measurement error model, the resulting likelihood involves intractable integrals, and a Monte Carlo expectation maximization strategy is developed for obtaining estimates. The method's performance is illustrated with a simulation study. 相似文献
87.
Abstract Rural women have difficulty finding good jobs. Ownership of small businesses offers an alternative but the sales and income of women-owned firms are significantly lower than those of men-owned firms. Compared with men, women owners are more likely to operate smaller and newer businesses; however, these differences do not completely account for the gap in gross sales between men- and women-owned businesses. The strongest influences on business success are firm size, corporate status, and industrial sector. Though significant, the owner's gender is less important than these organizational characteristics. The factors influencing success of small businesses generally are the same for men- and women-owned businesses. More research on business networks and the start-up phase of small businesses is necessary for a better understanding of the sources of gender differences in success. 相似文献
88.
Summary This paper solves some D-optimal design problems for certain Generalized Linear Models where the mean depends on two parameters
and two explanatory variables. In all of the cases considered the support point of the optimal designs are found to be independent
of the unknown parameters. While in some cases the optimal design measures are given by two points with equal weights, in
others the support is given by three point with weights depending on the unknown parameters, hence the designs are locally
optimal in general. Empirical results on the efficiency of the locally optimal designs are also given. Some of the designs
found can also be used for planning D-optimal experiments for the normal linear model, where the mean must be positive.
This research was carried out in part at University College, London as an M.Sc. project. Thanks are due to Prof. I. Ford (University
of Glasgow) and Prof. A. Giovagnoli (University of Perugia) for their valuable suggestions and critical observations. 相似文献
89.
袁嘉祖 《北京林业大学学报(社会科学版)》2002,(Z1)
该文从中国人口快速增长、经济建设加快、用水量逐年增大 ,加上气候变暖、少雨干旱将持续到 2 0 15年 ,我国北方水生态环境日趋恶化现状 ,说明在丰水区筑坝截流、调丰补歉势在必行 ,完全符合生态经济学发展原则和国际水法 相似文献
90.
Formulae are provided that define the ‘bend points’, the beginning and end of the essentially linear dose–response region, for the four‐parameter logistic model. The formulae are expressed in both response and dose units. The derivation of the formulae is shown in order to illustrate the general nature of the methodology. Examples are given that describe how the formulae may be used while planning and conducting bioassays. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献