全文获取类型
收费全文 | 768篇 |
免费 | 21篇 |
专业分类
各国政治 | 39篇 |
工人农民 | 63篇 |
世界政治 | 116篇 |
外交国际关系 | 48篇 |
法律 | 355篇 |
中国政治 | 3篇 |
政治理论 | 161篇 |
综合类 | 4篇 |
出版年
2023年 | 3篇 |
2022年 | 3篇 |
2021年 | 8篇 |
2020年 | 13篇 |
2019年 | 26篇 |
2018年 | 31篇 |
2017年 | 41篇 |
2016年 | 36篇 |
2015年 | 23篇 |
2014年 | 19篇 |
2013年 | 135篇 |
2012年 | 26篇 |
2011年 | 29篇 |
2010年 | 20篇 |
2009年 | 19篇 |
2008年 | 25篇 |
2007年 | 27篇 |
2006年 | 30篇 |
2005年 | 27篇 |
2004年 | 15篇 |
2003年 | 21篇 |
2002年 | 22篇 |
2001年 | 14篇 |
2000年 | 13篇 |
1999年 | 9篇 |
1998年 | 17篇 |
1997年 | 13篇 |
1996年 | 6篇 |
1995年 | 8篇 |
1994年 | 8篇 |
1993年 | 10篇 |
1992年 | 10篇 |
1991年 | 4篇 |
1990年 | 4篇 |
1989年 | 6篇 |
1988年 | 2篇 |
1987年 | 4篇 |
1986年 | 5篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1983年 | 3篇 |
1982年 | 12篇 |
1981年 | 5篇 |
1980年 | 4篇 |
1979年 | 3篇 |
1978年 | 5篇 |
1977年 | 4篇 |
1976年 | 4篇 |
1967年 | 2篇 |
1964年 | 1篇 |
排序方式: 共有789条查询结果,搜索用时 15 毫秒
181.
Jan Douwe van der Ploeg Ye Jingzhong Sergio Schneider 《The Journal of peasant studies》2013,40(1):133-173
This article discusses and compares the rural development processes and practices currently occurring in China, Brazil and the European Union. Although these are strongly rooted in the specificities of time and space, they also share important commonalities. We argue that rural development can be viewed as an evolving set of responses to market failures. A key element of these responses is that they are unfolding through the construction of new markets: a seemingly contradictory phenomenon that has, as yet, hardly been scrutinized or theoretically elaborated. We describe these newly emerging markets as ‘nested markets’ and support our argument with a careful reconsideration of the dynamics of long-established nested markets. We then extend this analysis, firstly, by arguing that the construction of such new markets occurs through a process of social struggle and, secondly, by exploring the strength of these newly emerging constellations in relation to the hegemony exerted by food empires. Our analysis puts common-pool resources, which underlie these new, nested markets, centre stage. 相似文献
183.
Jan‐Werner Müller 《European Law Journal》2008,14(5):542-557
Abstract: Especially since the failure of the European Constitutional Treaty, the idea of a European constitutional patriotism has become subject to ever more intense criticism. This article argues that many of the criticisms of the idea of a European constitutional patriotism have been based on philosophical misunderstandings (both of the notion of constitutional patriotism as such, and of the role it could play in Europe) or rely on implausible empirical claims. Accordingly, the normative idea of constitutional patriotism is first clarified; second, the article discusses some of the most common normative and empirical traps when trying to 'transfer' constitutional patriotism from a domestic nation-state context to the supranational level, as well as the tendency to overburden constitutional patriotism with expectations of solidarity and deliberative democracy; third, an EU-specific post-sovereign, pluralist version of constitutional patriotism is defended against critics who see even such a vision as insufficiently sensitive to value pluralism and cultural diversity. 相似文献
184.
185.
Tsokos M Rothschild MA Madea B Rie M Sperhake JP 《The American journal of forensic medicine and pathology》2006,27(1):70-74
Wischnewsky spots in the gastric mucosa are considered an important finding for the diagnosis of hypothermia-related deaths. In the present prospective histological and immunohistochemical investigation, 14 cases of fatal hypothermia presenting Wischnewsky spots at autopsy were studied. Macromorphologically, the lesions, varying in diameter from 0.1 to 0.4 cm, had a blackish-brownish color and appeared partly lofty, especially on the apex of gastric folds. Histologically, no erosions or ulcers were observed in the gastric mucosa. In some cases, hemorrhages in conjunction with infarctions of the mucosa were observed in the mucosal glands. Those regions, however, did not represent the lesions visible as Wischnewsky spots at the macroscopical level. Immunohistochemical stains were done with a specific antibody against hemoglobin (Dako, Glostrup, Denmark). Wischnewsky spots expressed immunopositivity with antihemoglobin. Concerning the pathogenesis and underlying pathophysiologic mechanisms contributing to the development of Wischnewsky spots, we hypothesize that cooling of the body in the setting of cold ambient temperatures primarily leads to circumscribed hemorrhages of the gastric glands in vivo or in the agonal period, respectively. Subsequently, due to autolysis, erythrocytes are destroyed and hemoglobin is released. Following exposure to gastric acid, hemoglobin is hematinized, leading to the typical blackish-brownish appearance of Wischnewsky spots seen at gross examination. Wischnewsky spots are not equivalent to erosions in terms of histopathological diagnosis but rather represent epiphenomena generated in vivo or in the agonal period of fatal hypothermia. 相似文献
186.
A new method of age estimation based on the changes in human non-collagenous proteins from dentin 总被引:1,自引:0,他引:1
The new method exploits the characteristic of staphylococcal protease V8, which specifically splits peptide bonds where l-glutamic or l-aspartic acid participate. Those peptide bonds where d-aspartic acid is present remain unsplit because of the stereospecifity of enzymes. In accordance with expectations, fewer peptide bonds are split by this protease at more advanced ages and larger peptide fragments are thus formed due to the higher content of d-amino acid residues in the proteins of older people. The samples of acid-extracted non-collagenous proteins from dentin were separated using high performance liquid chromatography after enzymatic hydrolysis. A peak with a retention time of 45.3 min was chosen and his enlarging area showed a linear correlation with increasing age. Although the linear correlation with age was proved, the scattering of values decreases the usefulness of the proposed method for age estimation. 相似文献
187.
This article provides a brief review of a number of key developments within the area of sexual offending over the past two decades. In addition, several directions for future research are discussed. The review presents information concerning several well-validated risk assessment instruments that are available. As well, some of the accumulating evidence concerning the efficacy of contemporary approaches to treatment with sex offenders is mentioned, as are theoretical developments within the field. 相似文献
188.
Ballistic imaging databases allow law enforcement to link recovered cartridge cases to other crime scenes and to firearms. The success of these databases has led many to propose that all firearms in circulation be entered into a reference ballistic image database (RBID). To assess the performance of an RBID, we fired 4200 cartridge cases from 600 9mm Para Sig Sauer model P226 series pistols. Each pistol fired two Remington cartridges, one of which was imaged in the RBID, and five additional cartridges, consisting of Federal, Speer, Winchester, Wolf, and CCI brands. Randomly selected samples from the second series of Remington cartridge cases and from the five additional brands were then correlated against the RBID. Of the 32 cartridges of the same make correlated against the RBID, 72% ranked in the top 10 positions. Likewise, of the 160 cartridges of the five different brands correlated against the database, 21% ranked in the top 10 positions. Generally, the ranking position increased as the size of the RBID increased. We obtained similar results when we expanded the RBID to include firearms with the same class characteristics for breech face marks, firing pin impressions, and extractor marks. The results of our six queries against the RBID indicate that a reference ballistics image database of new guns is currently fraught with too many difficulties to be an effective and efficient law enforcement tool. 相似文献
189.
Jan Schnellenbach 《Public Choice》2006,129(3-4):301-313
Recent contributions to the economics of terrorism have given contradicting recommendations for campaigning against terrorism, from the proposal to deprive terrorists of their resources to the proposal of raising the opportunity costs of terrorism by increasing the wealth of the affected regions. Within a simple framework which differentiates between the decision to become an active terrorist and the decision to support terrorists and which allows for reciprocal reactions to anti-terrorism policies, it is argued here that undifferentiated deterrence may indeed backfire, but so may an increase of the opportunity costs of terrorism. A very targeted anti-terrorism policy aimed only at active terrorists would then be the most reasonable remaining approach. 相似文献
190.
公共政策问题建构过程中的公共性研究 总被引:6,自引:0,他引:6
公共政策具有公共性,亦即处理大多数民众的问题。政策具有问题性,也就是政策以民众问题为导向,大多数民众有相同问题,政府机关将问题纳入政府议程,提出解决策略。倘若忽视公共性,公共政策就有可能变为某些个人、团体、阶层谋取私立的工具。这就要求我们在公共政策的制定和实施的过程中,必须时时关注公共性,亦即要做到在政策问题取向上的公共性。故而,首先探究公共政策问题与其公共性之意涵;其次,析探问题建构中公共性之哲学基础;最后,藉由现今流行于公共政策学界,用以展现问题建构过程中公共性的审议式民主,以及审议式民主在台湾之应用-公民会议的召开,来加以进一步说明。 相似文献