全文获取类型
收费全文 | 2875篇 |
免费 | 103篇 |
专业分类
管理学 | 436篇 |
民族学 | 29篇 |
人才学 | 1篇 |
人口学 | 243篇 |
丛书文集 | 19篇 |
理论方法论 | 365篇 |
综合类 | 28篇 |
社会学 | 1458篇 |
统计学 | 399篇 |
出版年
2023年 | 30篇 |
2022年 | 18篇 |
2021年 | 34篇 |
2020年 | 96篇 |
2019年 | 124篇 |
2018年 | 117篇 |
2017年 | 141篇 |
2016年 | 137篇 |
2015年 | 94篇 |
2014年 | 101篇 |
2013年 | 441篇 |
2012年 | 149篇 |
2011年 | 135篇 |
2010年 | 103篇 |
2009年 | 105篇 |
2008年 | 97篇 |
2007年 | 92篇 |
2006年 | 92篇 |
2005年 | 81篇 |
2004年 | 85篇 |
2003年 | 71篇 |
2002年 | 59篇 |
2001年 | 35篇 |
2000年 | 40篇 |
1999年 | 38篇 |
1998年 | 36篇 |
1997年 | 34篇 |
1996年 | 30篇 |
1995年 | 25篇 |
1994年 | 33篇 |
1993年 | 27篇 |
1992年 | 35篇 |
1991年 | 22篇 |
1990年 | 17篇 |
1989年 | 15篇 |
1988年 | 17篇 |
1987年 | 9篇 |
1986年 | 12篇 |
1985年 | 21篇 |
1984年 | 11篇 |
1983年 | 13篇 |
1982年 | 12篇 |
1981年 | 8篇 |
1980年 | 12篇 |
1979年 | 10篇 |
1978年 | 10篇 |
1977年 | 6篇 |
1976年 | 10篇 |
1975年 | 7篇 |
1971年 | 7篇 |
排序方式: 共有2978条查询结果,搜索用时 0 毫秒
21.
Emma Hartnett Amie Adkin Miles Seaman John Cooper Eamon Watson Helen Coburn Tracey England Christophen Marooney Anthony Cox Mavion Wooldridge 《Risk analysis》2007,27(1):187-202
Foot and mouth disease (FMD) is considered by many as the most important animal disease in the world. FMD is highly contagious and outbreaks incur significant costs as affected countries are severely limited in their ability to trade. A number of trade commodities may be contaminated with FMD virus (FMDV) including animal products, for example, meat. As a member of the European Union, Great Britain (GB) has put in place a number of regulations to prevent the importation of pathogens in imported meat products. However, the illegal importation of meat provides a route by which safety controls may be circumvented and meat from FMD affected areas may be imported. This study assesses the FMD infection risk posed to the livestock population of GB from the illegal importation of meat, and estimates the major contributors to this overall risk, through the development of a quantitative risk assessment model. From model results, the total amount of illegal meat entering GB each year is estimated on average to be 11,875 tonnes. with 90% certainty that this is between 4,398 and 28,626 tonnes per year; of which between 64.5 and 565 kg are contaminated with FMDV. This flow of illegal meat results in an estimate of a frequency of FMD infection in GB livestock of 0.015 cases of infected animals per year, with 90% certainty it is between 0.0017 and 0.053. Imports from the region Near and Middle East account for 47% of this risk, and 68% of the risk is attributed to bone-in and dried de-boned products. 相似文献
22.
Daniel Rigney 《Sociological inquiry》1991,61(4):434-451
Hofstadter's landmark analysis of anti-intellectualism in American life is interpreted within the framework of the sociology of knowledge. His analysis suggests three analytically distinct types of anti-intellectualism: religious anti-rationalism, populist anti-elitism, and unreflective instrumentalism. Each type arises from within its own distinctive institutional matrix. Although Hofstadter fails to anticipate the growing cultural impact of mass media institutions, he demonstrates convincingly that anti-intellectualism is not a unitary phenomenon. 相似文献
23.
Anthony E. Ladd 《Sociological inquiry》1991,61(3):299-313
Despite sociopolitical controversy surrounding the solid waste crisis, little sociological attention has focused on this crucial environmental issue. Drawing on research from the technological controversies, environmental concern, and solid waste literatures, this study examines the pre-implementation anxieties of a Louisiana community faced with a proposal to build an incinerator in its backyard. Utilizing survey data, a causal path model is developed in which the perceived advantages of the technology, general environmental concern, and support for recycling initiatives are identified as explanatory variables of incinerator opposition. Implications of these findings for the study of technical controversies and the larger solid waste crisis also are suggested. 相似文献
24.
Two earner family migration A search theoretic approach 总被引:1,自引:0,他引:1
Mont D 《Journal of population economics》1989,2(1):55-72
This paper represents the first attempt to model the two earner family decision to migrate using a joint search theoretic approach. In so doing, the paradox of a couple whose members would both migrate if single but decide not to migrate because they are married to each other is discovered and explained. Furthermore the impact of the rising number of working women and reentry of wives into the labor force on the extent and regional pattern of migration is discussed. Extensions to the model are addressed, as well as future avenues of research, both theoretical and empirical. It is suggested that the search theoretic approach, not previously applied to models of family migration, is the most appropriate. 相似文献
25.
Perez L 《The International migration review》1986,20(1):4-20
The economic adjustment of Cuban-origin persons in the US has been analyzed traditionally at 2 levels: the individual and the community (enclave). The analysis presented here represents a complementary approach at the household level. Data from the 1980 census show that the relatively successful economic adjustment of Cubans is largely a family, rather than an individual, phenomenon. The data also permit an identification of the structural features of the Cuban-origin family that facilitate economic adjustment. The results have special implications for the study of the labor-force experience of Cuban women and their role within the enclave economy (author's). 相似文献
26.
27.
Perez L 《The International migration review》1994,28(4):736-747
"Using data from the Children of Immigrants Survey, the antecedents of extended family arrangements among [U.S.] immigrant households with children are examined. The incidence and form of such arrangements, especially the presence of grandparents, are analyzed in relation to single parenthood, national origin, cultural assimilation, and socioeconomic variables. The findings serve to underscore the complexity of the correlates of extended family arrangements. While there is a relationship with single parenthood, more research is needed on the economic basis for the presence of relatives in the household. The analysis uncovered the need to also treat presence of grandparents as an independent variable, especially in the cultural assimilation of children of immigrants." 相似文献
28.
SupposeL(X) is the law of a positive random variableX, andZ is positive and independent ofX. Admissible solution pairs (L(X),L(Z)) are sought for the in-law equation $\hat X \cong X o Z$ °Z, where $L\left( {\hat X} \right)$ is a weighted law constructed fromL(X), and ° is a binary operation which in some sense is increasing. The class of weights includes length biasing of arbitrary order. When ° is addition and the weighting is ordinary length biasing, the class of admissibleL(X) comprises the positive infinitely divisible laws. Examples are given subsuming all known specific cases. Some extensions for general order of length-biasing are discussed. 相似文献
29.
30.
This article focuses on a Russian woman entrepreneur who established a very successful software firm under license from an American software company. The case illustrates a productive and successful partnership between a Western company and a new Russian entrepreneur. Recent developments in Russian entrepreneurship are reviewed, and the selection of Russian entrepreneurs as business partners is evaluated. The American company is described briefly, followed by an in-depth discussion of its Russian partner and founder, Olga Kirova. Conclusions and interpretations are offered on choosing the right Russian partners, assessing their personal values, objectives and leadership skills, being a good Western business partner, and considering Russian women as business associates. 相似文献