全文获取类型
收费全文 | 18198篇 |
免费 | 259篇 |
国内免费 | 15篇 |
专业分类
管理学 | 2284篇 |
民族学 | 104篇 |
人才学 | 1篇 |
人口学 | 1598篇 |
丛书文集 | 164篇 |
教育普及 | 1篇 |
理论方法论 | 1674篇 |
综合类 | 778篇 |
社会学 | 9143篇 |
统计学 | 2725篇 |
出版年
2023年 | 127篇 |
2022年 | 90篇 |
2021年 | 159篇 |
2020年 | 322篇 |
2019年 | 407篇 |
2018年 | 457篇 |
2017年 | 657篇 |
2016年 | 454篇 |
2015年 | 338篇 |
2014年 | 431篇 |
2013年 | 2781篇 |
2012年 | 624篇 |
2011年 | 597篇 |
2010年 | 501篇 |
2009年 | 434篇 |
2008年 | 526篇 |
2007年 | 528篇 |
2006年 | 552篇 |
2005年 | 453篇 |
2004年 | 387篇 |
2003年 | 322篇 |
2002年 | 357篇 |
2001年 | 458篇 |
2000年 | 380篇 |
1999年 | 393篇 |
1998年 | 293篇 |
1997年 | 246篇 |
1996年 | 243篇 |
1995年 | 234篇 |
1994年 | 214篇 |
1993年 | 241篇 |
1992年 | 265篇 |
1991年 | 275篇 |
1990年 | 250篇 |
1989年 | 232篇 |
1988年 | 223篇 |
1987年 | 249篇 |
1986年 | 205篇 |
1985年 | 224篇 |
1984年 | 232篇 |
1983年 | 213篇 |
1982年 | 190篇 |
1981年 | 161篇 |
1980年 | 143篇 |
1979年 | 166篇 |
1978年 | 131篇 |
1977年 | 110篇 |
1976年 | 124篇 |
1975年 | 138篇 |
1974年 | 122篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
Putman Breanna J. Gasca Maria Blumstein Daniel T. Pauly Gregory B. 《Urban Ecosystems》2019,22(6):1071-1081
Urban Ecosystems - Urbanization-induced habitat loss and alteration causes significant challenges for the survival of many species. Identifying how species respond to urbanization can yield... 相似文献
22.
本文承接马克斯·韦伯对于传统中国的观察,在李猛论文的启发下,尝试对近代中国理性化转轨的初生时刻进行个案研究,聚焦于康有为在戊戌变法前后推动的革命性的孔教运动。依托韦伯的若干理论概念,本文认为这一运动起于康氏对自身卡里斯马的自觉,进而对孔子、孔学做了宗教化的再阐释。康氏的普遍主义取向的宗教改革虽然夭折,但对同时期的庙产兴学运动和稍后的反迷信运动有重要的触发意义。一方面呈现为神秘化,另一方面却是在理性化西方的挑战下应运而生,这使得康氏变教的价值合理化努力难以成功。孔教革命虽然以激进的面目出现,但其意图却是保守性的,即试图在大变局中维持儒士阶层的整全性。理性化转轨的历史使命随后交到了“主义”政党的手中。 相似文献
23.
T. H. M. Abouelmagd A. A. E. Ahmed Enayat M. Abd Elrazik Mahmoud M. Mansour A-Hadi N. Ahmed 《统计学通讯:理论与方法》2019,48(12):2904-2916
In this paper, a comparison between the life distribution of a new unit with that of a used unit in the increasing convex order is made leading to a new class of life distributions which we call “new better than used in convex ordering of second order”. This class includes as subclasses the NBU and the NBUC and is a subclass of the NBUCA class. Preservation properties under convolution, random maxima, mixing and formation of coherent structures are established. Stochastic comparisons of the excess lifetime when the inter-arrival times belong to the NBUC(2) class are developed. Some applications of Poisson shock models and a test of exponentiality against NBUC(2) alternative are presented. 相似文献
24.
Brizzi Francesco Birrell Paul J. Plummer Martyn T. Kirwan Peter Brown Alison E. Delpech Valerie C. Gill O. Noel De Angelis Daniela 《Lifetime data analysis》2019,25(4):757-780
Lifetime Data Analysis - CD4-based multi-state back-calculation methods are key for monitoring the HIV epidemic, providing estimates of HIV incidence and diagnosis rates by disentangling their... 相似文献
25.
H. Jonathon Rendina Jonathan López-Matos Katie Wang John E. Pachankis 《Journal of sex research》2019,56(4-5):620-631
Researchers have theorized about the role of sexual shame as a mechanism through which sexual minority stress manifests into mental health difficulties, such as sexual compulsivity for gay and bisexual men (GBM), and about the resilience-promoting effects of sexual pride. However, no validated measures to date have directly tapped into these constructs rather than using proxies for them, such as internalized homonegativity. We developed the Sexual Shame and Pride Scale (SSPS) and conducted a psychometric evaluation of it using a sample of 260 highly sexually active GBM. The scale had the expected structure in factor analysis and showed evidence of internal consistency and test–retest reliability. Correlational analyses demonstrated the convergent validity of sexual shame and sexual pride with relevant constructs. Regression analyses demonstrated the predictive validity of sexual shame in relation to sexual compulsivity, accounting for unique variability even after adjusting for previously demonstrated etiological factors, and the predictive validity of both shame and pride, which interacted to consistently predict four sexual behavior outcomes. Findings suggest the SSPS is a psychometrically valid and reliable measure that may be useful in future empirical work and highlight preliminary evidence for the role of these constructs in the sexual health of GBM. 相似文献
26.
Alicia L. Nobles Brett A. Curtis Duc A. Ngo Emily Vardell 《Journal of American college health : J of ACH》2019,67(5):469-478
Objective: This study examines the health insurance literacy, or the ability to use health insurance effectively, of college students. Participants: A total of 455 students from a large, public university completed an online questionnaire in November 2016. Methods: A questionnaire examined students’ knowledge of commonly encountered health insurance terms and ability to apply that knowledge to determine cost-sharing in a clinical setting. Results: The majority of students were able to correctly identify the most commonly encountered terms, but could not identify terms related to plan types and options. Eighty-eight percent of students could not determine their cost-sharing for two presented scenarios. Approximately half of the students indicated they had been confused about their health insurance plan, with one-quarter of students stopping or delaying medical care due to confusion. Conclusions: Outreach and education for students should target specific deficits in knowledge such as those identified in this study. 相似文献
27.
Kranjac Ashley W. Denney Justin T. Kimbro Rachel T. Moffett Brady S. Lopez Keila N. 《Population research and policy review》2019,38(3):347-369
Population Research and Policy Review - The literature on neighborhoods and child obesity links contextual conditions to risk, assuming that if place matters, it matters in a similar way for... 相似文献
28.
Nicky J. Newton Preet K. Chauhan Shauna T. Spirling Abigail J. Stewart 《Journal of women & aging》2019,31(4):286-303
Retirement is a complex life transition. Women’s retirement, like their work lives, may be further complicated, for example, by family or financial obligations; they may feel forced to retire or to continue working or feel they have the choice to do so. This study examines the role of voluntary versus involuntary retirement or continued work participation among retirement-age women; specifically, the relationships between choice, work status, and well-being. Compared to women forced to retire, women who chose retirement or continuing to work had higher levels of life satisfaction. Findings highlight the importance of examining retirement within the life course context. 相似文献
29.
Shanna L. Burke Tianyan Hu Nicole M. Fava Tan Li Miriam J. Rodriguez Katie L. Schuldiner 《Journal of women & aging》2019,31(2):140-164
This study examined biological sex differences in the development of mild cognitive impairment (MCI) and probable Alzheimer’s disease (AD) development as predicted by changes in the hippocampus or white matter hyperintensities. A secondary data analysis of the National Alzheimer’s Coordinating Center Uniform Data Set was conducted. We selected samples of participants with normal cognition at baseline who progressed to MCI (n = 483) and those who progressed to probable AD (n = 211) to determine if hippocampal volume or white matter hyperintensities (WMH) at baseline predicted progression to probable AD or MCI and whether the rate of progression differed between men and women. The survival analyses indicated that changes in hippocampal volumes affected the progression to probable AD (HR = 0.535, 95% CI [0.300–0.953]) only among women. White men had an increased rate of progression to AD (HR = 4.396, CI [1.012–19.08]; HR = 4.665, 95% CI [1.072–20.29]) compared to men in other race and ethnic groups. Among women, increases in hippocampal volume ratio led to decreased rates of progressing to MCI (HR = 0.386, 95% CI [0.166–0.901]). Increased WMH among men led to faster progression to MCI (HR = 1.048. 95% CI [1.011–1.086]). Women and men who were older at baseline were more likely to progress to MCI. In addition, results from longitudinal analyses showed that women with a higher CDR global score, older age at baseline, or more disinhibition symptoms experienced higher odds of MCI development. Changes in hippocampal volumes affect the progression to or odds of probable AD (and MCI) more so among women than men, while changes in WMH affected the progression to MCI only among men. 相似文献
30.
Adrienne L. Massanari 《Feminist Media Studies》2019,19(1):19-37
/r/TrollXChromosomes is a women-focused humor subreddit on the community site Reddit.com. This essay presents the findings of a thematic content analysis of TrollX’s top-ranked postings. Several themes emerge: that TrollX is a space for networked affective content, that postings often concern women’s embodiment and sexuality, and that they suggest feminist perspectives. These themes are all linked by the image of the troll: a remixed version of the negative, antisocial identity that disrupts and often harasses communities. The TrollX troll invokes a spirit of self-deprecation to revel in the absurdities of life and collectively celebrate women’s everyday experiences. However, this research also argues that the TrollX version of the feminist troll is only partially realized, as it tends to express ambivalence in regards to systemic, intersectional oppression. 相似文献