全文获取类型
收费全文 | 22901篇 |
免费 | 455篇 |
国内免费 | 1篇 |
专业分类
管理学 | 3077篇 |
民族学 | 140篇 |
人才学 | 1篇 |
人口学 | 2019篇 |
丛书文集 | 102篇 |
教育普及 | 1篇 |
理论方法论 | 2049篇 |
综合类 | 206篇 |
社会学 | 11549篇 |
统计学 | 4213篇 |
出版年
2023年 | 146篇 |
2022年 | 95篇 |
2021年 | 152篇 |
2020年 | 396篇 |
2019年 | 582篇 |
2018年 | 676篇 |
2017年 | 876篇 |
2016年 | 684篇 |
2015年 | 480篇 |
2014年 | 637篇 |
2013年 | 4112篇 |
2012年 | 811篇 |
2011年 | 778篇 |
2010年 | 571篇 |
2009年 | 470篇 |
2008年 | 632篇 |
2007年 | 581篇 |
2006年 | 582篇 |
2005年 | 483篇 |
2004年 | 493篇 |
2003年 | 425篇 |
2002年 | 468篇 |
2001年 | 543篇 |
2000年 | 488篇 |
1999年 | 456篇 |
1998年 | 361篇 |
1997年 | 312篇 |
1996年 | 317篇 |
1995年 | 335篇 |
1994年 | 292篇 |
1993年 | 295篇 |
1992年 | 341篇 |
1991年 | 338篇 |
1990年 | 324篇 |
1989年 | 288篇 |
1988年 | 293篇 |
1987年 | 253篇 |
1986年 | 252篇 |
1985年 | 284篇 |
1984年 | 257篇 |
1983年 | 243篇 |
1982年 | 187篇 |
1981年 | 162篇 |
1980年 | 181篇 |
1979年 | 199篇 |
1978年 | 168篇 |
1977年 | 142篇 |
1976年 | 118篇 |
1975年 | 117篇 |
1974年 | 109篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
Michael R. Welch Roberto E. N. Rivera Brian P. Conway Jennifer Yonkoski Paul M. Lupton Russell Giancola 《Sociological inquiry》2005,75(4):453-473
This article provides an overview of social trust, examining its various aspects and components. Trust is best understood in a sociological sense by focusing on its important relational characteristic. Following this lead, the article discusses briefly how social trust relates to social capital and examines factors that shape the development of social trust, along with outcomes related to variations in trust, classifying them by analytical level (i.e., individual, community, group, organizational, and societal). The article concludes by assessing the strengths and weaknesses of existing research and by identifying some important questions that have not yet been adequately addressed. 相似文献
62.
We employ vector autoregressive techniques to determine the current state of the labor queue. Unemployment rate differentials
have narrowed in recent years, potentially due to a change in the queue ordering, though a tight labor market and a stable
queue would yield similar results. We find no evidence that the queue ordering has changed, which brings into question the
resiliency of gains made by minority groups. We employ the same techniques to reveal the state of the queue across geographic
regions and find that substantial differences exist across regions, implying variation in the relative labor force status
of demographic groups. 相似文献
63.
Hunter LM 《Population research and policy review》2006,25(2):157-174
In many developing regions, women and young girls spend several hours daily in the collection of natural resources. Still the link between these household resource strategies and stakeholder perceptions of development priorities remains unexplored. This project examines this association with survey data representative of the adult population from Ghana’s Coastal Region. Although natural resource scarcity and the sustainability of resource use represent key development challenges, there are others (e.g., energy, sanitation, employment, and educational opportunities). As such, even in the face of natural resource scarcity, individuals may place greater importance on other dimensions of development, especially if household resource strategies are perceived as relatively efficient. The analytical focus here is on water and the results suggest that gender roles shape household water collection strategies, while also shaping these strategies’ perceived opportunity costs. Specifically, Ghanian adults more often see drinking water provision as their primary development need when water sources are distant and/or when male household members collect water (particularly male heads). In the end, I argue that social science inquiry benefits by contextualizing social dynamics within environmental context, particularly within cultural settings in which human subsistence is intimately tied to the state of the natural environment. 相似文献
64.
James P. Davis 《Journal of popular culture》2005,38(6):1011-1021
65.
66.
The authors review the trends in the use of computers in the delivery and support of career guidance and counseling identified at the symposium International Perspectives on Career Development. The papers presented emphasized that 20th‐century computer‐based systems continue to be used, mainly delivered via the World Wide Web. These systems are enhanced through audio, video, graphics, strategies to provide needs assessment, and support by cybercounselors or expert system design. The papers also revealed a new trend: the use of elegant Web sites to store and search immense libraries of resources needed by professionals and clients and to facilitate communication and collaboration among professionals in cyberspace. Concerns, issues, and resources related to many areas, including the readiness of clients to use computer‐based systems, were also raised; existing sources of guidelines are noted. 相似文献
67.
Generalized additive models for location, scale and shape 总被引:10,自引:0,他引:10
R. A. Rigby D. M. Stasinopoulos 《Journal of the Royal Statistical Society. Series C, Applied statistics》2005,54(3):507-554
Summary. A general class of statistical models for a univariate response variable is presented which we call the generalized additive model for location, scale and shape (GAMLSS). The model assumes independent observations of the response variable y given the parameters, the explanatory variables and the values of the random effects. The distribution for the response variable in the GAMLSS can be selected from a very general family of distributions including highly skew or kurtotic continuous and discrete distributions. The systematic part of the model is expanded to allow modelling not only of the mean (or location) but also of the other parameters of the distribution of y , as parametric and/or additive nonparametric (smooth) functions of explanatory variables and/or random-effects terms. Maximum (penalized) likelihood estimation is used to fit the (non)parametric models. A Newton–Raphson or Fisher scoring algorithm is used to maximize the (penalized) likelihood. The additive terms in the model are fitted by using a backfitting algorithm. Censored data are easily incorporated into the framework. Five data sets from different fields of application are analysed to emphasize the generality of the GAMLSS class of models. 相似文献
68.
69.
Christian P. Robert Xiao-Li Meng Jesper Møller Jeffrey S Rosenthal C Jennison M. A Hurn F Al-Awadhi Peter McCullagh Christophe Andrieu Arnaud Doucet Petros Dellaportas Ioulia Papageorgiou Ricardo S Ehlers Elena A Erosheva Stephen E Fienberg Jonathan J Forster Roger C Gill Nial Friel Peter Green David Hastie R King Hans R Künsch N. A. Lazar C Osinski 《Journal of the Royal Statistical Society. Series B, Statistical methodology》2003,65(1):39-55
70.
Josefina M. Contreras 《Journal of research on adolescence》2004,14(3):341-368
Relations between grandmother and partner involvement (coresidence, social support, child care) and Puerto Rican adolescent mothers' parenting behaviors were examined. Few associations between grandmother involvement and behavior emerged, and these were moderated by coresidence. In contrast, partner involvement showed a number of significant (positive) direct and moderated relations with behavior. For both providers, the direction of the relations between social support and behavior during teaching was the opposite depending on coresidence: Greater social support was related to the display of more positive behavior among coresiding mothers but to less competent behavior among non‐coresiding mothers. The relations between child care support and behavior differed across providers. For grandmothers, greater child care was related to less positive behavior during teaching among coresiding mothers but to more competent behavior among non‐coresiding mothers. For partners, greater child care was more strongly related to positive behavior during play among non‐coresiding than coresiding mothers. Results are discussed in light of Latino cultural values, developmental issues, and implications for intervention. 相似文献