全文获取类型
收费全文 | 22863篇 |
免费 | 921篇 |
国内免费 | 252篇 |
专业分类
管理学 | 1967篇 |
劳动科学 | 5篇 |
民族学 | 143篇 |
人才学 | 9篇 |
人口学 | 439篇 |
丛书文集 | 1629篇 |
理论方法论 | 689篇 |
综合类 | 13724篇 |
社会学 | 1682篇 |
统计学 | 3749篇 |
出版年
2024年 | 40篇 |
2023年 | 191篇 |
2022年 | 169篇 |
2021年 | 257篇 |
2020年 | 408篇 |
2019年 | 467篇 |
2018年 | 549篇 |
2017年 | 682篇 |
2016年 | 574篇 |
2015年 | 694篇 |
2014年 | 1195篇 |
2013年 | 2434篇 |
2012年 | 1556篇 |
2011年 | 1585篇 |
2010年 | 1272篇 |
2009年 | 1270篇 |
2008年 | 1404篇 |
2007年 | 1545篇 |
2006年 | 1396篇 |
2005年 | 1271篇 |
2004年 | 1080篇 |
2003年 | 954篇 |
2002年 | 810篇 |
2001年 | 602篇 |
2000年 | 443篇 |
1999年 | 227篇 |
1998年 | 134篇 |
1997年 | 120篇 |
1996年 | 108篇 |
1995年 | 80篇 |
1994年 | 84篇 |
1993年 | 70篇 |
1992年 | 57篇 |
1991年 | 34篇 |
1990年 | 37篇 |
1989年 | 41篇 |
1988年 | 32篇 |
1987年 | 33篇 |
1986年 | 24篇 |
1985年 | 27篇 |
1984年 | 30篇 |
1983年 | 14篇 |
1982年 | 13篇 |
1981年 | 9篇 |
1980年 | 4篇 |
1979年 | 3篇 |
1978年 | 1篇 |
1977年 | 5篇 |
1975年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
Sofie De Veirman 《Disability & Society》2015,30(3):460-474
In this article, the employment characteristics of pre-industrial and industrial cohorts of deaf men and women are compared with each other, as well as with a cohort of non-disabled siblings. The aim is to determine the extent to which the employment patterns of deaf persons lined up with those of non-disabled people and to see how nineteenth-century industrialization processes influenced their employment opportunities. This article challenges the widely held assumption that the nineteenth century constituted a definitive break by arguing that the professional lives of deaf people were not necessarily better before industrialization. Moreover, I demonstrate that the development of deaf schools in the course of the nineteenth century opened a new range of career opportunities for deaf individuals. 相似文献
3.
Michael Greenberg Anthony Cox Vicki Bier Jim Lambert Karen Lowrie Warner North Michael Siegrist Felicia Wu 《Risk analysis》2020,40(Z1):2113-2127
As part of the celebration of the 40th anniversary of the Society for Risk Analysis and Risk Analysis: An International Journal, this essay reviews the 10 most important accomplishments of risk analysis from 1980 to 2010, outlines major accomplishments in three major categories from 2011 to 2019, discusses how editors circulate authors’ accomplishments, and proposes 10 major risk-related challenges for 2020–2030. Authors conclude that the next decade will severely test the field of risk analysis. 相似文献
4.
Klaus Schneeberger Matthias Huttenlau Benjamin Winter Thomas Steinberger Stefan Achleitner Johann Sttter 《Risk analysis》2019,39(1):125-139
This article presents a flood risk analysis model that considers the spatially heterogeneous nature of flood events. The basic concept of this approach is to generate a large sample of flood events that can be regarded as temporal extrapolation of flood events. These are combined with cumulative flood impact indicators, such as building damages, to finally derive time series of damages for risk estimation. Therefore, a multivariate modeling procedure that is able to take into account the spatial characteristics of flooding, the regionalization method top‐kriging, and three different impact indicators are combined in a model chain. Eventually, the expected annual flood impact (e.g., expected annual damages) and the flood impact associated with a low probability of occurrence are determined for a study area. The risk model has the potential to augment the understanding of flood risk in a region and thereby contribute to enhanced risk management of, for example, risk analysts and policymakers or insurance companies. The modeling framework was successfully applied in a proof‐of‐concept exercise in Vorarlberg (Austria). The results of the case study show that risk analysis has to be based on spatially heterogeneous flood events in order to estimate flood risk adequately. 相似文献
5.
The Coalition for a Healthier Community (CHC) initiative was implemented to improve the health and well-being of women and girls. Underpinning CHC is a gender-based focus that uses a network of community partners working collaboratively to generate relevant behavior change and improved health outcomes. Ten programs are trying to determine whether gender-focused system approaches are cost-effective ways to address health disparities in women and girls. Programs implemented through coalitions made up of academic institutions, public health departments, community-based organizations, and local, regional, and national organizations, are addressing health issues such as domestic violence, cardiovascular disease prevention, physical activity, and healthy eating. Although these programs are ongoing, they have made significant progress. Key factors contributing to their early success include a comprehensive needs assessment, robust coalitions, the diversity of populations targeted, programs based on findings of the needs assessments, evaluations taking into consideration the effect of gender, and strong academic–community partnerships. A noteworthy impact of these programs has been their ability to shape and impact public, social, and health policies at the state and local levels. However, there have been challenges associated with the implementation of such a complex program. Lessons learned are discussed in this paper. 相似文献
6.
Strong orthogonal arrays (SOAs) were recently introduced and studied as a class of space‐filling designs for computer experiments. An important problem that has not been addressed in the literature is that of design selection for such arrays. In this article, we conduct a systematic investigation into this problem, and we focus on the most useful SOA(n,m,4,2 + )s and SOA(n,m,4,2)s. This article first addresses the problem of design selection for SOAs of strength 2+ by examining their three‐dimensional projections. Both theoretical and computational results are presented. When SOAs of strength 2+ do not exist, we formulate a general framework for the selection of SOAs of strength 2 by looking at their two‐dimensional projections. The approach is fruitful, as it is applicable when SOAs of strength 2+ do not exist and it gives rise to them when they do. The Canadian Journal of Statistics 47: 302–314; 2019 © 2019 Statistical Society of Canada 相似文献
7.
Ye Weiping 《Social Sciences in China》2018,39(1):34-49
Modern analytical models for anti-monopoly laws are a core element of the application of those laws. Since the Anti-Monopoly Law of the People’s Republic of China was promulgated in 2008, law enforcement and judicial authorities have applied different analytical models, leading to divergent legal and regulatory outcomes as similar cases receive different verdicts. To select a suitable analytical model for China’s Anti-Monopoly Law, we need to consider the possible contribution of both economic analysis and legal formalism and to learn from the mature systems and experience of foreign countries. It is also necessary to take into account such binding constraints as the current composition of China’s anti-monopoly legal system, the ability of implementing agencies and the supply of economic analysis, in order to ensure complementarity between the analytical model chosen and the complexity of economic analysis and between the professionalism of implementing agencies and the cost of compliance for participants in economic activities. In terms of institutional design, the models should provide a considered explanation of the legislative aims of the law’s provisions. It is necessary, therefore, to establish a processing model of behavioral classification that is based on China’s national conditions, applies analytical models using normative comprehensive analysis, makes use of the distribution rule of burden of proof, improves supporting systems related to analytical models and enhances the ability of public authorities to implement the law. 相似文献
8.
9.
ABSTRACTBy using the probabilistic framework of production efficiency, the paper develops time-dependent conditional efficiency estimators performing a non-parametric frontier analysis. Specifically, by applying both full and quantile (robust) time-dependent conditional estimators, it models the dynamic effect of health expenditure on countries’ technological change and technological catch-up levels. The results from the application reveal that the effect of per capita health expenditure on countries’ technological change and technological catch-up is nonlinear and is subject to countries’ specific income levels. 相似文献
10.
龚京美 《淮海工学院学报(社会科学版)》2015,(2)
当前,小区的景观配置及绿化已经成为人们选择住宅的重要条件之一。小区景观设计的细节往往是小区景观的配套设计与绿化成功的关键。住宅小区景观的配套设计与绿化是自然与人的完美协调与交融,是人的精神通过加工寄托于景物的一个过程。 相似文献