全文获取类型
收费全文 | 708篇 |
免费 | 14篇 |
专业分类
管理学 | 51篇 |
民族学 | 5篇 |
人口学 | 52篇 |
丛书文集 | 3篇 |
理论方法论 | 122篇 |
综合类 | 5篇 |
社会学 | 467篇 |
统计学 | 17篇 |
出版年
2023年 | 9篇 |
2022年 | 2篇 |
2021年 | 2篇 |
2020年 | 7篇 |
2019年 | 7篇 |
2018年 | 15篇 |
2017年 | 29篇 |
2016年 | 19篇 |
2015年 | 15篇 |
2014年 | 15篇 |
2013年 | 237篇 |
2012年 | 15篇 |
2011年 | 21篇 |
2010年 | 18篇 |
2009年 | 9篇 |
2008年 | 16篇 |
2007年 | 20篇 |
2006年 | 17篇 |
2005年 | 17篇 |
2004年 | 12篇 |
2003年 | 10篇 |
2002年 | 17篇 |
2001年 | 16篇 |
2000年 | 9篇 |
1999年 | 9篇 |
1998年 | 12篇 |
1997年 | 9篇 |
1996年 | 10篇 |
1995年 | 14篇 |
1994年 | 16篇 |
1993年 | 10篇 |
1992年 | 17篇 |
1991年 | 18篇 |
1990年 | 8篇 |
1989年 | 2篇 |
1988年 | 6篇 |
1987年 | 5篇 |
1986年 | 7篇 |
1985年 | 6篇 |
1984年 | 5篇 |
1983年 | 4篇 |
1980年 | 1篇 |
1979年 | 2篇 |
1978年 | 2篇 |
1977年 | 3篇 |
1975年 | 1篇 |
1971年 | 1篇 |
排序方式: 共有722条查询结果,搜索用时 15 毫秒
1.
Frontier spaces of vulnerability: Regional change,urbanization, drought and fire hazard in Santarém,Pará, Brazil 总被引:1,自引:1,他引:0
Fire hazard is a mounting concern in tropical rainforests of the Brazilian Amazon and has raised awareness within the science community of the links between agricultural fire use, drought and accidental fire. As a result, fire is being addressed as a crisis event with mitigation focused on those who light fires, particularly smallholder agriculturalists. Little attention is paid to the historical and ongoing ways in which Amazon landscapes and peoples have been made more susceptible to fire. Frontier regions of the Brazilian Amazon serve a variety of functions within the larger Brazilian society, including as extractive reserves for economic development, as social safety valves to reduce population pressures, and as areas to support urban regional integration. Each of these functions has impacted frontier environments in ways that create more flammable landscapes and/or shape the vulnerability of people to fire hazard. This paper uses a case study inthe Brazilian Lower Amazon to understand how vulnerability to fire hazard develops. It argues that if fire mitigation remains centered on fire as a crisis event, an understanding of what constitutes frontier spaces of vulnerability, both in landscape and in populations, will be limited. 相似文献
2.
The present article assesses the adversary systemper se and asks the question, Is there any place for courtroom antics and histrionics in cases involving children? Social workers are uncomfortable before the august body of thecourt, not because of any lack of education or knowledge on their part but because of the nature of the adversary process itself. 相似文献
3.
4.
Cynthia Tojeiro Francisco Louzada-Neto Heleno Bolfarine 《Journal of applied statistics》2004,31(6):685-691
In this paper, we present a Bayesian methodology for modelling accelerated lifetime tests under a stress response relationship with a threshold stress. Both Laplace and MCMC methods are considered. The methodology is described in detail for the case when an exponential distribution is assumed to express the behaviour of lifetimes, and a power law model with a threshold stress is assumed as the stress response relationship. We assume vague but proper priors for the parameters of interest. The methodology is illustrated by a accelerated failure test on an electrical insulation film. 相似文献
5.
6.
This paper offers a general overview of past, current, and developing issues and debates in the growing field of gender and feminist media studies. Its main aim is to provide for those who are new to the field, as well as advanced students and researchers, a broad sense of what is now significant and important area of academic research. It engages with the differences and similarities between gender and feminist media studies, gendered communication systems, gendered news production, feminist methodologies and methods in communication research (textual, audience, and production based), the media's role in constructing gender, and gendered and feminist research by specific media form including advertising, magazines, film, television, news, radio, and the Internet and new media. The outline of research presented is not exhaustive; however, it attempts to trace certain significant developments in the field historically, conceptually, methodologically politically and trans‐nationally. 相似文献
7.
In this article, we describe a straightforward method for solving the probability of at least one malignant cell by time t, and the associated hazard function, in the general (i.e., nonhomogeneous) two-stage Moolgavkar-Venzon-Knudson (MVK) model of cancer. The method consists of solving four coupled ordinary differential equations derived from the Kolmogorov backward equations for this process. The relationship of this method to previously proposed solutions is discussed. 相似文献
8.
9.
While the populations of the Central Asian successor states are extremely heterogeneous on many indicators, the issue of rural or urban residence is consistently important in terms of differentials in population growth, socio-economic status and public health. In this paper I focus on rural population trends in Kazakhstan, Kyrghyzstan, Turkmenistan, Uzbekistan and Tajikistan. I explore the relatively disadvantaged position of rural inhabitants as well as regional variations within the rural population. The differentials in fertility and mortality rates and the large projected population increases indicate that future policy interventions and data collection efforts should incorporate a specific focus on rural areas. 相似文献
10.
Leaving school prematurely is often claimed to be among the most negative consequences of early marriage and pregnancy for girls in less developed countries. However, an analysis of the relative frequency with which these events actually occur or are named as reasons for leaving school reveals that, at least in the case of francophone Africa, they explain no more than 20 per cent of dropouts. To the extent that demographic events trump school or family factors as determinants of school-leaving, our data indicate that it is union formation--defined by the DHS as first marriage or cohabitation--rather than childbirth that is more likely to have this effect. 'Schoolgirl pregnancy' typically accounts for only between 5 and 10 per cent of girls' departures from school. Furthermore, the risks of leaving school because of pregnancy or marriage have declined over time with the decline in rates of early marriage and childbearing. 相似文献