全文获取类型
收费全文 | 29080篇 |
免费 | 554篇 |
专业分类
管理学 | 3733篇 |
民族学 | 203篇 |
人才学 | 6篇 |
人口学 | 4058篇 |
丛书文集 | 109篇 |
教育普及 | 2篇 |
理论方法论 | 2324篇 |
现状及发展 | 1篇 |
综合类 | 519篇 |
社会学 | 13882篇 |
统计学 | 4797篇 |
出版年
2023年 | 101篇 |
2022年 | 81篇 |
2021年 | 99篇 |
2020年 | 307篇 |
2019年 | 504篇 |
2018年 | 2053篇 |
2017年 | 2274篇 |
2016年 | 1500篇 |
2015年 | 421篇 |
2014年 | 494篇 |
2013年 | 3266篇 |
2012年 | 1006篇 |
2011年 | 1707篇 |
2010年 | 1468篇 |
2009年 | 1204篇 |
2008年 | 1303篇 |
2007年 | 1485篇 |
2006年 | 484篇 |
2005年 | 660篇 |
2004年 | 686篇 |
2003年 | 623篇 |
2002年 | 489篇 |
2001年 | 486篇 |
2000年 | 405篇 |
1999年 | 396篇 |
1998年 | 323篇 |
1997年 | 289篇 |
1996年 | 326篇 |
1995年 | 280篇 |
1994年 | 264篇 |
1993年 | 252篇 |
1992年 | 294篇 |
1991年 | 293篇 |
1990年 | 260篇 |
1989年 | 262篇 |
1988年 | 256篇 |
1987年 | 232篇 |
1986年 | 221篇 |
1985年 | 253篇 |
1984年 | 239篇 |
1983年 | 237篇 |
1982年 | 181篇 |
1981年 | 158篇 |
1980年 | 174篇 |
1979年 | 170篇 |
1978年 | 143篇 |
1977年 | 140篇 |
1976年 | 123篇 |
1975年 | 115篇 |
1974年 | 96篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
931.
Urban Ecosystems - Although amphibians use human-created habitats in urban landscapes, few studies have investigated the quality of these habitats. To assess habitat quality of stormwater... 相似文献
932.
Urban Ecosystems - Anthropogenic noise may mask effective vocal signal transmission by birds, particularly in notes occurring in lower frequencies. Previous studies have shown a correlation of... 相似文献
933.
Urban Ecosystems - Urban areas with residential yards (= domestic gardens) provide a diverse environmental mosaic characterized by high plant architectural and species diversity and variation in... 相似文献
934.
Urban Ecosystems - The urban landscape constitutes a key aspect of human - nature interactions, as more than 60% of the world’s population resides in cities and their suburbs. This study... 相似文献
935.
936.
In this article, we introduce tempered Mittag-Leffler Lévy processes (TMLLP). TMLLP is represented as tempered stable subordinator delayed by a gamma process. Its probability density function and Lévy density are obtained in terms of infinite series and Mittag-Leffler function, respectively. Asymptotic forms of the tails and moments are given. A step-by-step procedure of the parameters estimation and simulation of sample paths is given. We also provide main results available for Mittag-Leffler Lévy processes (MLLP) and some extensions which are not available in a collective way in a single article. Our results generalize and complement the results available on Mittag-Leffler distribution and MLLP in several directions. Further, the asymptotic forms of the moments of the first-exit times of the TMLLP are also discussed. 相似文献
937.
Community attachment is the feeling of being connected to community life. Within the community attachment literature, two classic approaches frame scholars’ understanding of this important dimension of community life: the linear development and systemic models. Our empirical models emphasize different factors for community attachment, including population size, density, and heterogeneity for the linear development model and age, length of residence, and social status for the systemic model. Surprisingly, heterogeneity has been omitted from analyses of the linear development model throughout the literature since its introduction, a shortcoming our study addresses. Though heterogeneity can be conceptualized in a number of ways, a large—and growing—body of literature focuses on the effects of race and ethnicity for communities. Here, we focus on a particular type of ethnic heterogeneity—European ancestry—and reincorporate this essential dimension of communities back into the linear development model of community attachment. Using data from the 2004 wave of the Iowa Community Survey and multilevel modeling techniques, we explore how white ethnic diversity matters for community life. We conclude with a discussion of the implications of our study, including potential avenues for future research focusing on other ethnicities that are often subsumed under broader racial and panethnic labels. 相似文献
938.
J. Maria Bermúdez Bertranna Muruthi Lisa M. Zak‐Hunter Morgan A. Stinson Desiree M. Seponski Joshua L. Boe Narumi Taniguchi 《Journal of marital and family therapy》2019,45(2):309-322
When working with clients in another language, having culturally relevant and properly translated clinic materials is vital to effective clinical practice. Not having them presents a barrier for bilingual therapists and their clients. This paper reviews common translation methods and introduces a multi‐level, community‐based approach for translating clinic materials for non‐English speaking clients. Informed by decolonizing practices, this five‐tier method includes members from the target community as cultural brokers to verify the accuracy and nuances of language for their cultural group, as well as a constant comparative method to ensure methodological rigor in the process of inclusion. We present community member's feedback and recommendations, as well as discuss advantages and challenges of using this collaborative culturally responsive translation method. 相似文献
939.
Qualitative Sociology - This article examines the influence of geographic location on trans men’s desire to pass in the southeastern United States. Through 51 in-depth interviews with trans... 相似文献
940.
Cameron C. Brown Zenova Williams Jared A. Durtschi 《Journal of marital and family therapy》2019,45(4):650-667
Minimal research has examined interracial couples’ relationship satisfaction and dissolution patterns over time. Using dyadic data across 8 years, we examined potential differences in relationship quality trajectories through latent growth curve modeling with 1,336 couples as well as differential risks for relationship dissolution through logistic regression between same‐race and interracial relationships using a different subset of 2,370 couples. Results indicated that women in interracial relationships were significantly lower in initial relationship quality than women in same‐race relationships. Further, interracial couples of Black‐Hispanic partnerings were twice as likely to separate across 8 years than same‐race couples. These results suggest that despite interracial relationships not substantively differing from same‐race couples in trajectories of relationship quality, specific Black‐Hispanic interracial couples are at a higher risk of eventual separation. 相似文献