全文获取类型
收费全文 | 10056篇 |
免费 | 301篇 |
国内免费 | 1篇 |
专业分类
管理学 | 1522篇 |
民族学 | 53篇 |
人口学 | 904篇 |
丛书文集 | 32篇 |
理论方法论 | 848篇 |
综合类 | 152篇 |
社会学 | 4561篇 |
统计学 | 2286篇 |
出版年
2023年 | 85篇 |
2020年 | 156篇 |
2019年 | 246篇 |
2018年 | 287篇 |
2017年 | 408篇 |
2016年 | 301篇 |
2015年 | 239篇 |
2014年 | 282篇 |
2013年 | 1846篇 |
2012年 | 337篇 |
2011年 | 270篇 |
2010年 | 279篇 |
2009年 | 237篇 |
2008年 | 288篇 |
2007年 | 286篇 |
2006年 | 264篇 |
2005年 | 201篇 |
2004年 | 179篇 |
2003年 | 163篇 |
2002年 | 188篇 |
2001年 | 236篇 |
2000年 | 209篇 |
1999年 | 167篇 |
1998年 | 141篇 |
1997年 | 138篇 |
1996年 | 135篇 |
1995年 | 114篇 |
1994年 | 87篇 |
1993年 | 131篇 |
1992年 | 149篇 |
1991年 | 130篇 |
1990年 | 135篇 |
1989年 | 114篇 |
1988年 | 115篇 |
1987年 | 113篇 |
1986年 | 101篇 |
1985年 | 89篇 |
1984年 | 118篇 |
1983年 | 102篇 |
1982年 | 101篇 |
1981年 | 66篇 |
1980年 | 100篇 |
1979年 | 108篇 |
1978年 | 75篇 |
1977年 | 83篇 |
1976年 | 71篇 |
1975年 | 87篇 |
1974年 | 70篇 |
1973年 | 55篇 |
1972年 | 64篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
92.
93.
Yvonne Sjöblom Ph.D. 《Child and Adolescent Social Work Journal》2006,23(4):432-457
This paper presents a case study of a young woman’s narrative of leaving home and her transition to adulthood. The case study is part of a larger research project about young women with an experience of an early break-up from home, through running away or being thrown out. Empirical material underlying this paper consists of a qualitative study of 12 young women that have been interviewed. The aim of the study is to understand how events like running away/being thrown out of home influences their transition to adulthood. The particular narrative demonstrates how a young woman presents and accounts for such a dramatic event as running away or being thrown out from home, and how that is understood in relation to her adulthood. A further aim is to illustrate how social services efforts are reflected in her narrative. 相似文献
94.
In the design of experiments for estimating the slope of a response surface, slope-rotatability is a desirable property. In this paper, a measure is introduced that enables us to assess the degree of slope-rotatability for a given response surface design. The measure takes the value zero if and only if the design is slope-rotatable, and becomes larger as the design deviates from a slope-rotatable design. Examples of applying this measure to some response surface designs are also given. 相似文献
95.
Ross H. Taplin 《Australian & New Zealand Journal of Statistics》2002,44(3):295-310
This paper documents situations where the variance inflation model for outliers has undesirable properties. The model is commonly used to accommodate outliers in a Bayesian analysis of regression and time series models. The alternative approach provided here does not suffer from these undesirable properties but gives inferences similar to those of the variance inflation model when this is appropriate. It can be used with regression, time series, and regression with correlated errors in a unified way, and adheres to the scientific principle that inference should be based on the data after obvious outliers have been discarded. Only one parameter is required for outliers; it is interpretable as the a priori willingness to remove observations from the analysis. 相似文献
96.
97.
98.
In multiple linear regression analysis, each observation affects the fitted regression equation differently and has varying influences on the regression coefficients of the different variables. Chatterjee & Hadi (1988) have proposed some measures such as DSSEij (Impact on Residual Sum of Squares of simultaneously omitting the ith observation and the jth variable), Fj (Partial F-test for the jth variable) and Fj(i) (Partial F-test for the jth variable omitting the ith observation) to show the joint impact and the interrelationship that exists among a variable and an observation. In this paper we have proposed more extended form of those measures DSSEIJ, FJ and FJ(I) to deal with the interrelationships that exist among the multiple observations and a subset of variables by monitoring the effects of the simultaneous omission of multiple variables and multiple observations. 相似文献
99.
Pollard JH 《Mathematical Population Studies》1989,2(1):1-14
Mortality data are often gathered using 5-year age groups rather than individual years of life. Furthermore, it is common practice to use a large open-ended interval (such as 85 and over) for mortality data at the older ages. These limitations of the data pose problems for the actuary or demographer who wishes to compile a full and accurate life table using individual years of life. The author devises formulae which handle these problems. He also devises methods for handling mortality during the 1st year of life and for dealing with other technical problems which arise in the compilation of the full life table from grouped data. 相似文献
100.
Pekin H 《International migration (Geneva, Switzerland)》1989,27(2):281-293
This paper examines the situation and problems of migration on family structure, with emphasis on family reunification. The study is based on conditions and practices in Western Europe and Mediterranean countries relating to temporary labor migration. Most migrant workers have no intention of settling permanently and return to their country within a few years. The International Labour Office estimated in 1974 that at least 1/2 the migrant workers in Western Europe live without their families. Generally, migrants send for their families only when they are employed, earning adequate wages, and have adequate housing. Some reasons why migrants live apart from their families include 1) the receiving country discourages family immigration because it does not coincide with the economic necessities of migration policy and 2) some sending countries discourage it to ensure that the migrant worker returns to his own country. The main danger arising from family separation is that it frequently leads to the break up of the family. The leading European authorities recognize as a fundamental right the freedom of a migrant worker and his family to lead a normal family life in the receiving country. The author outlines the conditions for admission for residence and employment of migrant spouses and children for the Federal Republic of Germany, France, Belgium, Switzerland, the Netherlands, Sweden, Norway, Austria, Luxembourg, and the United Kingdom. All countries require that the head be in regular employment for some time and be able to provide his family with suitable housing. Other problems concerning the arrival of migrant spouses and children include 1) acquiring employment and social information and counseling, 2) education of children, 3) obtaining vocational training and adaptation and 4) achieving entitlement to social security benefits. The effects of migration in the family context in sending countries include 1) providing activities for migrants to maintain cultural links with their countries of origin and 2) acquiring the nationality of the receiving countries. Countries should facilitate the admission to employment of migrant spouses and children, by maintaining provisions for the reuniting of families and imposing no limits on admission to residence; and 2) by overcome obstacles to admission to employment, by observing existing recommendations. In conclusion, governments should give family cohesion 1st priority, regardless of regulations. 相似文献