全文获取类型
收费全文 | 369篇 |
免费 | 44篇 |
专业分类
各国政治 | 20篇 |
工人农民 | 16篇 |
世界政治 | 24篇 |
外交国际关系 | 20篇 |
法律 | 202篇 |
中国政治 | 3篇 |
政治理论 | 125篇 |
综合类 | 3篇 |
出版年
2023年 | 4篇 |
2022年 | 4篇 |
2021年 | 4篇 |
2020年 | 15篇 |
2019年 | 9篇 |
2018年 | 17篇 |
2017年 | 22篇 |
2016年 | 25篇 |
2015年 | 22篇 |
2014年 | 21篇 |
2013年 | 56篇 |
2012年 | 15篇 |
2011年 | 5篇 |
2010年 | 12篇 |
2009年 | 12篇 |
2008年 | 14篇 |
2007年 | 21篇 |
2006年 | 11篇 |
2005年 | 13篇 |
2004年 | 12篇 |
2003年 | 11篇 |
2002年 | 9篇 |
2001年 | 9篇 |
2000年 | 6篇 |
1999年 | 9篇 |
1998年 | 7篇 |
1997年 | 8篇 |
1996年 | 3篇 |
1995年 | 1篇 |
1994年 | 3篇 |
1993年 | 4篇 |
1992年 | 4篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1987年 | 2篇 |
1986年 | 5篇 |
1985年 | 1篇 |
1983年 | 5篇 |
1982年 | 3篇 |
1981年 | 2篇 |
1980年 | 1篇 |
1978年 | 1篇 |
1977年 | 2篇 |
排序方式: 共有413条查询结果,搜索用时 15 毫秒
181.
Cristina Cattaneo Stefanie Ritz-Timme Peter Gabriel Daniele Gibelli Elena Giudici Pasquale Poppa Doerte Nohrden Sabine Assmann Roland Schmitt Marco Grandi 《Forensic science international》2009,183(1-3):e21-e24
The issue of juvenile pornography has seen an increase in the past few years of the number of expert opinions requested to forensic pathologists, paediatricians and other various experts within the forensic and medical fields concerning the age of represented individuals. Regardless of the entity of the problem, no actual method exists which can allow us to give an objective and scientific answer, particularly in the postpubertal stage. Using parameters related to sexual maturation can be very dangerous. Nonetheless some experts still insist with similar types of “expertises”. This study aims at verifying the ability of different experts in assessing age of postpubertal individuals represented in pornographic material. Results underline the difficulties and major uncertainties of age evaluation by visual observation of photographic material particularly when the subjects have reached the sexual maturation stage – and therefore in verifying whether the individual is above or below 18 years of age (an important age limit for most European countries as far as this type of crime is concerned). Furthermore the study stresses the need both to search for an alternate approach and to apply extreme caution in judicial evaluation. 相似文献
182.
Social impact assessment of regional plans: a review of methods and issues and a recommended process
Social impact assessment (SIA) is defined and related to other policy analysis techniques. Conceptual problems in conducting SIA are reviewed. Various SIA methods are identified and evaluated for their probable effectiveness in assessing regional plans. Regional planning conditions are identified and constraints to, and demands on, SIA are examined. A strategy for SIA is proposed which uses public inputs during cyclical planning iterations for efficiently identifying and assessing the most important social impacts.This article is primarily based on earlier work funded by the Kellogg Grant to the University of California at Davis (Kellogg-SRAPC Project). An earlier version of this paper was published by the Sacramento Regional Area Planning Commission (Sacramento, CA) in 1977. 相似文献
183.
R. J. Johnston 《Political studies》1986,34(3):466-473
184.
185.
186.
187.
David Rossiter Ron Johnston Charles Pattie Danny Dorling Iain MacAllister & Helena Tunstall 《英国政治学与国际关系杂志》1999,1(2):133-164
The biased outcomes of recent British general elections, whereby the two main parties (Conservative and Labour) would have achieved different percentages of the seats in the House of Commons for the same percentages of the votes cast, are explored, using a method of bias decomposition developed by a New Zealand political scientist. Overall, the situation changed markedly between 1950 and 1997: the biases in the system strongly favoured the Conservatives in the 1950s and early 1960s, but Labour in 1992 and 1997. Examination of the seven components of the bias measure shows that most of these moved in Labour's favour over the 50-year period, with a major shift between 1992 and 1997 because of the greater geographical efficiency of the Labour party's vote at the latter date: reasons for this are suggested. 相似文献
188.
Pereira L Richards M Goios A Alonso A Albarrán C Garcia O Behar DM Gölge M Hatina J Al-Gazali L Bradley DG Macaulay V Amorim A 《Forensic science international》2006,159(1):43-50
The impact of phylogeographic information on mtDNA forensics has been limited to the quality control of published sequences and databases. In this work we use the information already available on Eurasian mtDNA phylogeography to guide the choice of coding-region SNPs for haplogroup H. This sub-typing is particularly important in forensics since, even when sequencing both HVRI and HVRII, the discriminating power is low in some Eurasian populations. We show that a small set (eight) of coding-region SNPs resolves a substantial proportion of the identical haplotypes, as defined by control-region variation alone. Moreover, this SNP set, while substantially increasing the discriminating efficiency in most Eurasian populations by roughly equal amounts, discloses population-specific profiles. 相似文献
189.
190.