首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   444篇
  免费   3篇
各国政治   25篇
工人农民   53篇
世界政治   31篇
外交国际关系   35篇
法律   222篇
中国政治   9篇
政治理论   64篇
综合类   8篇
  2024年   5篇
  2023年   4篇
  2022年   3篇
  2021年   7篇
  2020年   9篇
  2019年   25篇
  2018年   17篇
  2017年   23篇
  2016年   14篇
  2015年   20篇
  2014年   22篇
  2013年   52篇
  2012年   19篇
  2011年   18篇
  2010年   10篇
  2009年   23篇
  2008年   18篇
  2007年   20篇
  2006年   18篇
  2005年   19篇
  2004年   9篇
  2003年   6篇
  2002年   11篇
  2001年   7篇
  2000年   7篇
  1999年   6篇
  1998年   5篇
  1997年   7篇
  1996年   1篇
  1995年   3篇
  1994年   4篇
  1993年   4篇
  1992年   4篇
  1991年   2篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1987年   4篇
  1986年   4篇
  1984年   3篇
  1983年   5篇
  1982年   3篇
  1980年   1篇
  1976年   1篇
  1972年   1篇
排序方式: 共有447条查询结果,搜索用时 15 毫秒
11.
    
Abstract

This paper analyses work, childcare, and earnings of mothers in the slums of Guatemala City and Accra. Similar factors affect decisions to work and to use formal daycare, but the importance of childcare varies with the role of the formal labour sector. In Guatemala, where formal sector work is important, higher prices for informal care increase formal daycare use. However, daycare prices and proximity to daycare centers do not significantly affect earnings in Guatemala City and Accra, respectively. Providing formal daycare may be more important to mothers' decision to work in cities where formal sector work dominates.  相似文献   
12.
    
The relationship between intergovernmental grants and public expenditures is one of the most studied phenomena in the local public finance literature. However, little is known about whether the impact of unconditional grants is fundamentally different from that of other sources of municipal revenue. We study this question by means of a large-scale randomised survey experiment among Danish local politicians, which allows for a comparison of the impact of changes in various sources of municipal revenue. Our findings challenge the conventional conception in the public finance literature that money works differently depending on which sector they are generated in. Instead, ideology plays an important role in explaining how local politicians want to allocate resources when faced with changes in local government revenue.  相似文献   
13.
This note suggests that, viewed from a feminist perspective, the reforms contained in the Human Fertilisation and Embryology Act 2008 represent a missed opportunity to re-think the appropriate model of regulation to govern fertility treatment and embryology research in the UK. It argues that reform of the legislation was driven largely by the government’s desire to avoid re-igniting controversies over the legal status of the embryo and abortion and to maintain Britain’s position at the forefront of embryo research and related biotechnologies. It also highlights the importance of media debates, which were highly selective, to the reform process, and suggests that in order to inject feminist values into the process of legislative reform, feminists need to become more media savvy. In the short term, it suggests that there is little prospect of a radical re-thinking of the appropriate ethico-legal response to the wide variety of family forms that reproductive technologies potentially enable, much less of considering our ethical obligations to the new forms of embryos that are now permitted by the 2008 Act. In the meantime, however, it argues that these issues provide productive opportunities for feminist legal theorists to address questions that have been erased or obscured in the course of the 2008 reforms.  相似文献   
14.
ABSTRACT

Advice that is provided exclusively over the telephone has been promoted by government as more convenient and accessible than face-to-face appointments. The resulting push towards telephone-only provision, as implemented by the Legal Aid, Sentencing and Punishment of Offenders Act 2012, challenges the long history of association between social welfare law advice and local delivery within disadvantaged communities. This article reports on qualitative research comparing telephone and face-to-face advice which uncovers the continuing relevance of place in the dynamics and mechanics of social welfare law provision. Familiarity with the geographical location, knowledge of local policies and procedures, relationships with opponents and allies, and an understanding of the ‘local legal culture’ mean that face-to-face advisers are often able to conduct their legal casework more effectively. Conversely, local knowledge is unlikely to be available to Community Legal Advice telephone advisers. This research suggests that, in addition, telephone-only advisers may be developing a more narrow understanding of the essential qualities of casework. These findings are particularly significant in view of the likely future expansion of remote methods of delivery in legal aid work.  相似文献   
15.
    
Semaan et al. (J Forensic Res, 2020, 11, 453) discuss a mock case “where eight different individuals [P1 through P8] could not be excluded in a mixed DNA analysis. Even though … expert DNA mixture analysis software was used.” Two of these are the true donors. The LRs reported are incorrect due to the incorrect entry of propositions into LRmix Studio. This forced the software to account for most of the alleles as drop-in, resulting in LRs 60–70 orders of magnitude larger than expected. P1, P2, P4, P5, and P8 can be manually excluded using peak heights. This has relevance when using LRmix which does not use peak heights. We extend the work using the same two reference genotypes who were the true contributors as Semaan et al. (J Forensic Res, 2020, 11, 453). We simulate three two-donor mixtures with peak heights using these two genotypes and analyze using STRmix?. For the simulated 1:1 mixture, one of the non-donors’ LRs supported him being a contributor when no conditioning was used. When considered in combination with any other potential donors (i.e., with conditioning), this non-donor was correctly eliminated. For the 3:1 mixture, all results correctly supported that the non-donors were not contributors. The low-template 4:1 mixture LRs with no conditioning showed support for all eight profiles as donors. However, the results from pair-wise conditioning showed that only the two ground truth donors had LRs supporting that they were contributors to the mixture. We recommend the use of peak heights and conditioning profiles, as this allows better sensitivity and specificity even when the persons share many alleles.  相似文献   
16.
A DNA microarray system for forensic SNP analysis   总被引:3,自引:0,他引:3  
Forensic DNA analysis is routinely performed using polymorphic short tandem repeat (STR) markers. However, for degraded or minute DNA samples, analysis of autosomal single nucleotide polymorphisms (SNPs) in short fragments might be more successful. Furthermore, sequencing of mitochondrial DNA (mtDNA) is often performed on highly degraded or scarce samples due to the high copy number of mtDNA in each cell. Due to the increasing number of complete mtDNA genome sequences available, the limited discrimination power of an mtDNA analysis, may be increased by analysis of coding region polymorphisms in addition to the non-coding variation. Since sequence analysis of the coding region would require more material than generally present in forensic samples, an alternative SNP analysis approach is required. We have developed a one-colour microarray-based SNP detection system for limited forensic materials. The method is based on minisequencing in solution prior to hybridisation to universal tag-arrays. In a first outline of a forensic chip, a combination of 12 nuclear and 21 mitochondrial SNP markers are analysed simultaneously. The mitochondrial markers on the chip are polymorphisms within the hypervariable region as well as in the coding region. Even though the number of markers in the current system is limited, it can easily be extended to yield a greater power of discrimination. When fully developed, microarray analysis provides a promising system for efficient sensitive SNP analysis of forensic samples in the future.  相似文献   
17.
18.
19.
20.
The residential aged care industry in Australia will expand rapidly over the next 10 years leading to substantial increases in government expenditure. Recent and future reforms are likely leading to changes in the structure of the industry with a potential impact on quality of care. The purpose of this paper is to stimulate broader public debate, based on the available evidence, about the preferred structure of this important industry. It examines the literature on the impact structure has on the quality of services and compares this with a fresh analysis of current trends. The paper argues that future policy should be evidence based and explicit about the structure of the industry that will emerge from current policy reforms.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号