全文获取类型
收费全文 | 201篇 |
免费 | 25篇 |
专业分类
各国政治 | 21篇 |
工人农民 | 4篇 |
世界政治 | 12篇 |
外交国际关系 | 14篇 |
法律 | 135篇 |
中国共产党 | 1篇 |
中国政治 | 1篇 |
政治理论 | 36篇 |
综合类 | 2篇 |
出版年
2023年 | 5篇 |
2022年 | 3篇 |
2021年 | 2篇 |
2020年 | 10篇 |
2019年 | 12篇 |
2018年 | 15篇 |
2017年 | 14篇 |
2016年 | 18篇 |
2015年 | 12篇 |
2014年 | 5篇 |
2013年 | 27篇 |
2012年 | 13篇 |
2011年 | 11篇 |
2010年 | 6篇 |
2009年 | 12篇 |
2008年 | 12篇 |
2007年 | 4篇 |
2006年 | 7篇 |
2005年 | 6篇 |
2004年 | 7篇 |
2003年 | 5篇 |
2002年 | 8篇 |
2001年 | 2篇 |
2000年 | 3篇 |
1998年 | 2篇 |
1995年 | 1篇 |
1993年 | 1篇 |
1988年 | 1篇 |
1973年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有226条查询结果,搜索用时 31 毫秒
31.
32.
33.
Evaluation of Lip Prints on Different Supports Using a Batch Image Processing Algorithm and Image Superimposition 下载免费PDF全文
Lara Maria Herrera M.Sc. Clemente Maia da Silva Fernandes Ph.D. Mônica da Costa Serra Ph.D. 《Journal of forensic sciences》2018,63(1):122-129
This study aimed to develop and to assess an algorithm to facilitate lip print visualization, and to digitally analyze lip prints on different supports, by superimposition. It also aimed to classify lip prints according to sex. A batch image processing algorithm was developed, which facilitated the identification and extraction of information about lip grooves. However, it performed better for lip print images with a uniform background. Paper and glass slab allowed more correct identifications than glass and the both sides of compact disks. There was no significant difference between the type of support and the amount of matching structures located in the middle area of the lower lip. There was no evidence of association between types of lip grooves and sex. Lip groove patterns of type III and type I were the most common for both sexes. The development of systems for lip print analysis is necessary, mainly concerning digital methods. 相似文献
34.
Luis V. Prandel Ph.D. Vander de F. Melo Ph.D. André M. Brinatti Ph.D. Sérgio da C. Saab Ph.D. Fábio A. S. Salvador Ph.D. 《Journal of forensic sciences》2018,63(1):251-257
Soil vestiges might provide information about a crime scene. The Rietveld method with X‐ray diffraction data (RM‐XRD) is a nondestructive technique that makes it possible to characterize minerals present in the soils. Soil clays from the metropolitan region of Curitiba (Brazil) were submitted to DCB treatment and analyzed using XRD with CuKα radiation in the step‐scan mode (0.02° 2θ/5 s). The GSAS+EXPGUI software was used for RM refinement. The RM‐XRD results, together with the principal component analysis (PCA) (52.6% total variance), showed the kaolinite predominance in most analyzed samples and the highest quartz contents in “site 1.” Higher anatase, and gibbsite and muscovite contents influenced discrimination, mainly in “site 3” and “site 1,” respectively. These results were enough to discriminate clays of four sites and two horizons using a reduced amount of sample showing that the technique can be applied to the investigation into soil vestiges. 相似文献
35.
“We Are the Visible Proof”: Legitimizing Abortion Regret Misinformation through Activists’ Experiential Knowledge 下载免费PDF全文
Since 2010, many abortion policies emerging at the state level have been designed around the idea of “abortion regret,” a scientifically discredited assertion that abortion causes long‐term health problems for women. Studies have examined the legal significance of regret claims in case law as well as the role scientific misinformation and uncertainty play in the policy process. However, scholars have given less attention to the intersection between abortion regret experiences and misinformation. We address this gap in the literature by examining how antiabortion activists' experiential knowledge continues to reinforce and legitimize misinformation contained in state policies. We explore the process of substantiating abortion regret misinformation by attaching it to activists' experiential expertise. Based on twenty‐three interviews with antiabortion activists, we argue that misinformation receives validation through the certainty of experiential knowledge, which activists mobilize around and use as a source of evidence in the policy process. 相似文献
36.
Cormac Ó Gráda 《The History of the Family》2013,18(4):350-359
The paper offers an analysis of the demography of the confessionally-divided and heavily industrialized northern Irish town of Lurgan in the early twentieth century. Its main source is the individual household forms of the Irish population census of 1911. This was the first Irish census to provide household-level data on the number of children born—and the number still surviving—to married couples co-resident at the time of the census. The paper begins by producing standard cross-tabulations of socio-economic status, as represented by literacy, numeracy, occupation, and the labour force participation of married women, by religion. It then presents econometric analyses of female labour force participation, marital fertility, and infant and child mortality. The greater poverty of Catholic households forced a higher proportion of mothers to work outside the home, mainly as unskilled workers in the town's linen mills. The analysis of the marital fertility suggests that confessional affiliation did not influence family size much at this juncture. The analysis of infant and child mortality suggests that religious affiliation was to a significant extent a cloak for living standards and socio-economic advantage. 相似文献
37.
Tony Simoes da Silva 《Canadian journal of African studies》2013,47(3):463-471
This review article offers a critical assessment of Ato Quayson's Cambridge History of Postcolonial Literature (2012), engaging in passing with a debate between postcolonial theorists that appeared also in 2012 in the New Literary History (43.1 & 2). It posits that the History presents postcolonial literature, and indeed postcolonial studies, as much too settled fields, a view clearly at odds both with their genesis and with that reflected in the essays in NLH. 相似文献
38.
Careful users of CMP party position data should take the uncertainty of position estimates into account. We compare and evaluate two current approaches that provide error estimates for party positions. Researchers of the CMP group identify measurement error in quantitative content analysis as the cause of uncertainty about position estimates, whereas a second approach by Benoit et al. (2009) attributes the uncertainty of position estimates to a stochastic generation of election programs. We illustrate the commonalities and differences of these approaches and provide two empirical applications, the identification of the left–right order of parties and of policy shifts by parties, using CMP data for 25 countries. Despite conceptual differences, results in these applications are surprisingly similar. 相似文献
39.
This article contrasts three dimensions of economic voting, namely valence, positional and patrimony voting. Whereas the first two dimensions have been frequently explored, the patrimony variable has scarcely been tested as an explanatory variable of voting behaviour. It measures the electors' assets (both risky and non-risky), and seeks to capture the elector's wealth at election time. Using the 2011 post-election survey carried out in Portugal following the June elections, the data show that comparing of the three dimensions, valence is the most important. It was found that patrimony variables, although not significant in a comprehensive vote model, are important explanatory factors of party identification, itself a key variable of vote choice in Portugal. 相似文献
40.
This article focuses on the apocalyptic zeitgeist of the Islamic State through the lens of what we call the New Tribalism. It finds that IS emerged from the Al Qaeda (AQ) milieu, but soon split with AQ as the messianic excitement surrounding Al-Baghdadi and his teachings grew. In common with previous millennial/messianic movements in all three “Peoples of the Book”—Judaism, Christianity, and Islam—IS soon evolved beyond the laws of the normative faith (antinomianism). We hold that for this reason, despite its claims of faith and fealty, IS has left the Islamic Umah behind, becoming a malign sectarian group of its own whose dynamism and successes are attracting a global audience and support from Muslims in almost every country. This helps to explain such abhorrent practices as forced conversion, sexual servitude, the destruction of historic artifacts, and mass executions. We find that the American invasion of Iraq was the vital first step in a series of events, which gave birth to IS. A thorough review of IS history and political culture traces these historic moments in time. 相似文献