全文获取类型
收费全文 | 13475篇 |
免费 | 375篇 |
专业分类
管理学 | 1880篇 |
民族学 | 88篇 |
人才学 | 2篇 |
人口学 | 1461篇 |
丛书文集 | 62篇 |
教育普及 | 1篇 |
理论方法论 | 1158篇 |
现状及发展 | 1篇 |
综合类 | 182篇 |
社会学 | 6320篇 |
统计学 | 2695篇 |
出版年
2023年 | 121篇 |
2022年 | 89篇 |
2021年 | 115篇 |
2020年 | 272篇 |
2019年 | 362篇 |
2018年 | 448篇 |
2017年 | 545篇 |
2016年 | 446篇 |
2015年 | 274篇 |
2014年 | 377篇 |
2013年 | 2341篇 |
2012年 | 541篇 |
2011年 | 387篇 |
2010年 | 325篇 |
2009年 | 314篇 |
2008年 | 337篇 |
2007年 | 320篇 |
2006年 | 287篇 |
2005年 | 294篇 |
2004年 | 272篇 |
2003年 | 241篇 |
2002年 | 263篇 |
2001年 | 303篇 |
2000年 | 299篇 |
1999年 | 278篇 |
1998年 | 198篇 |
1997年 | 182篇 |
1996年 | 179篇 |
1995年 | 174篇 |
1994年 | 138篇 |
1993年 | 153篇 |
1992年 | 176篇 |
1991年 | 150篇 |
1990年 | 160篇 |
1989年 | 186篇 |
1988年 | 153篇 |
1987年 | 141篇 |
1986年 | 152篇 |
1985年 | 173篇 |
1984年 | 170篇 |
1983年 | 157篇 |
1982年 | 123篇 |
1981年 | 108篇 |
1980年 | 103篇 |
1979年 | 138篇 |
1978年 | 90篇 |
1977年 | 87篇 |
1976年 | 87篇 |
1975年 | 82篇 |
1974年 | 81篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
It is uncertain whether Latin America and Caribbean (LAC) countries are approaching a single mortality regime. Over the last three decades, LAC has experienced major public health interventions and the highest number of homicides in the world. However, these interventions and homicide rates are not evenly shared across countries. This study documents trends in life expectancy and lifespan variability for 20 LAC countries, 2000–14. By extending a previous method, we decompose differences in lifespan variability between LAC and a developed world benchmark into cause-specific effects. For both sexes, dispersion of amenable diseases through the age span makes the largest contribution to the gap between LAC and the benchmark. Additionally, for males, the concentration of homicides, accidents, and suicides in mid-life further impedes mortality convergence. Great disparity exists in the region: while some countries are rapidly approaching the developed regime, others remain far behind and suffer a clear disadvantage in population health. 相似文献
2.
3.
Has Opposition to Immigration Increased in the United States after the Economic Crisis? An Experimental Approach
下载免费PDF全文
![点击此处可从《The International migration review》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Mathew J. Creighton Amaney Jamal Natalia C. Malancu 《The International migration review》2015,49(3):727-756
We employ two population‐level experiments to accurately measure opposition to immigration before and after the economic crisis of 2008. Our design explicitly addresses social desirability bias, which is the tendency to give responses that are seen favorably by others and can lead to substantial underreporting of opposition to immigration. We find that overt opposition to immigration, expressed as support for a closed border, increases slightly after the crisis. However, once we account for social desirability bias, no significant increase remains. We conclude that the observed increase in anti‐immigration sentiment in the post‐crisis United States is attributable to greater expression of opposition rather than any underlying change in attitudes. 相似文献
4.
Sociolinguistic research has demonstrated that gossip is a co‐constructed phenomenon, which allows participants to establish solidarity and build alignments with each other, while evaluating an absent party. Gossip can also serve important social functions, such as helping to establish and reconfirm group norms and values. The present study provides a detailed analysis of an extended gossip episode that occurred within an institutional context: a study group interaction at a U.S. university. Our analysis shows how, in gossip, constructed dialogue both prompts and legitimizes pejorative evaluations towards an absent third party, and is actually the pivot around which group members negotiate values and norms in the process of arriving at a shared moral stance. Our analysis also demonstrates that alignment in gossip interactions is tenuous and must be continuously renewed. 相似文献
5.
Cancho Vicente G. Macera Márcia A. C. Suzuki Adriano K. Louzada Francisco Zavaleta Katherine E. C. 《Lifetime data analysis》2020,26(2):221-244
Lifetime Data Analysis - Frailty models are generally used to model heterogeneity between the individuals. The distribution of the frailty variable is often assumed to be continuous. However, there... 相似文献
6.
Oliveira Flávio G. Tapisso Joaquim T. von Merten Sophie Rychlik Leszek Fonseca Paulo J. Mathias Maria da Luz 《Urban Ecosystems》2021,24(5):851-862
Urban Ecosystems - The development of urban areas imposes challenges that wildlife must adapt to in order to persist in these new habitats. One of the greatest changes brought by urbanization has... 相似文献
7.
8.
We propose testing procedures for the hypothesis that a given set of discrete observations may be formulated as a particular time series of counts with a specific conditional law. The new test statistics incorporate the empirical probability-generating function computed from the observations. Special emphasis is given to the popular models of integer autoregression and Poisson autoregression. The asymptotic properties of the proposed test statistics are studied under the null hypothesis as well as under alternatives. A Monte Carlo power study on bootstrap versions of the new methods is included as well as real-data examples. 相似文献
9.
Sant’Anna Annibal Parracho de Freitas Siqueira Sadok Menna Barreto Márcia 《Social indicators research》2020,148(3):733-746
Social Indicators Research - This paper analyses the Human Development Index (HDI) time series from 2010 to 2017. An alternative index is studied, which combines the same components of the HDI by... 相似文献
10.
Aging in the Era of Regenerative Medicine: Analysis of Aging‐Related Representations among Canadian Researchers
下载免费PDF全文
![点击此处可从《The Sociological quarterly》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Céline Lafontaine 《The Sociological quarterly》2015,56(1):62-79
Explicitly aimed at understanding and controlling molecular and cellular processes at the root of senescence and biological aging, regenerative medicine aspires to artificially reproduce the biological processes that enable the body to regenerate itself. This no longer involves conserving the body's state of balance by combating disease, as in clinical medicine, but rather fighting degeneration itself. From stem cell research to gene therapy to the production of replacement tissues, regenerative medicine perfectly corresponds to the logic of biomedicalization specific to postmodern society. Based on a series of 18 interviews conducted with Canadian researchers and clinicians in the field of regenerative medicine, this article seeks to understand representations of the aging body among researchers in this field. Seen from a strictly negative angle, aging is assimilated by researchers to an inevitable catastrophe that nevertheless must be combated. More closely observing the theoretical model of regenerative biology and the types of treatments developed, it can be observed, however, that this medicine of the future does not target the elderly, but rather promises youth the ability to regenerate themselves to avoid aging. 相似文献