全文获取类型
收费全文 | 502篇 |
免费 | 19篇 |
专业分类
各国政治 | 45篇 |
工人农民 | 41篇 |
世界政治 | 40篇 |
外交国际关系 | 24篇 |
法律 | 214篇 |
中国政治 | 3篇 |
政治理论 | 149篇 |
综合类 | 5篇 |
出版年
2023年 | 3篇 |
2020年 | 3篇 |
2019年 | 11篇 |
2018年 | 12篇 |
2017年 | 10篇 |
2016年 | 14篇 |
2015年 | 17篇 |
2014年 | 18篇 |
2013年 | 70篇 |
2012年 | 12篇 |
2011年 | 15篇 |
2010年 | 13篇 |
2009年 | 21篇 |
2008年 | 20篇 |
2007年 | 13篇 |
2006年 | 15篇 |
2005年 | 20篇 |
2004年 | 23篇 |
2003年 | 10篇 |
2002年 | 12篇 |
2001年 | 15篇 |
2000年 | 12篇 |
1999年 | 12篇 |
1998年 | 5篇 |
1997年 | 8篇 |
1996年 | 10篇 |
1995年 | 4篇 |
1994年 | 8篇 |
1993年 | 11篇 |
1992年 | 6篇 |
1991年 | 8篇 |
1990年 | 9篇 |
1989年 | 7篇 |
1988年 | 13篇 |
1987年 | 3篇 |
1986年 | 5篇 |
1985年 | 8篇 |
1984年 | 6篇 |
1983年 | 3篇 |
1982年 | 2篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 4篇 |
1976年 | 3篇 |
1974年 | 3篇 |
1973年 | 3篇 |
1972年 | 2篇 |
1971年 | 2篇 |
1964年 | 3篇 |
1963年 | 1篇 |
排序方式: 共有521条查询结果,搜索用时 31 毫秒
471.
472.
473.
Speech technology has developed rapidly and has taken many different forms. One form of this technology, the internet, poses a difficult challenge for society because of the way that it provides children with easy access to various forms of 'indecent' material. US courts have struggled with the problem of how to reconcile the internet, and other more advanced technologies, with traditional First Amendment free speech doctrine. For many years, US courts distinguished between so-called 'traditional forms' of technology, and other forms of technology, in particular broadcast technology. While the courts have always provided strong protections for traditional forms of technology, they have provided less protection to broadcast technology. Importantly, the internet challenges the dichotomy between 'traditional' technology and broadcast technology, and has forced the US Supreme Court to reconsider its precedents relating to technology. This reconsideration has made it more difficult to regulate the internet for the 'health, welfare and morals' of society. This paper analyses the scope of government authority in light of recent precedent. 相似文献
474.
Most academic research on taxation relates to higher-level issues of fiscal policy. Much public debate takes place about the calculation and incidence of different taxes, but little academic research addresses the management problems that are specific to national taxation regimes. This paper identifies emerging issues and calls for joint practitioner/academic attention on an international basis to address these issues. 相似文献
475.
476.
Patronato de Nutrición introduced a range of 18 optional agricultural technologies in the indigenous community of Chalite, Panama. Three of the technologies were adopted by more than half of the farmers surveyed, while an additional eight technologies were adopted by between 20 per cent and 50 per cent of the farmers. Farmers were more likely to adopt technologies associated with familiar crops, previously promoted by other groups, or requiring limited labour or financial resources. The article shows how development groups can quickly reduce the number of technologies promoted in order to deliver services more effectively. 相似文献
477.
The Colonel Blotto game captures strategic situations in which players attempt to mismatch an opponent’s action. We extend Colonel Blotto to a class of General Blotto games that allow for more general payoffs and externalities between fronts. These extensions make Blotto applicable to a variety of real-world problems. We find that like Colonel Blotto, most General Blotto games do not have pure strategy equilibria. Using a replicator dynamics learning model, we show that General Blotto may have more predictable dynamics than the original Blotto game. Thus, adding realistic structure to Colonel Blotto may, paradoxically, make it less complex. 相似文献
478.
The global production of knowledge is grossly skewed to the northern Anglophone world (Hogg et al. in International Journal for Crime, Justice and Social Democracy, 6(1), 1–7, 2017; Connell 2007). It should be no surprise therefore that criminology’s origin stories are derivative of northern experiences, yet generalised as universal theories of crime causation. In this article, we argue that the origin stories of criminological theory translated the ‘darker’, ‘hairier’ and ‘muscular’ masculinities of the global south into prototypes of dangerousness. These prototypes were first articulated as scientific claims in the nineteenth century works of Lombroso, but have been refined and embedded in mainstream criminological discourses well into the present, mainly through the quantitative study of social disorganisation, ‘race’ and racialised masculinities as variables in crime causation. The paper concedes that while deeply troubling expressions of violent masculinity exist now and in the past in the global south, it is mistaken to conceive this violence simply as expressions of atavism or social disorganisation associated with a less civilised world. On the contrary, this paper argues that the violence of colonality itself has had, and continues to have, a criminogenic impact on the present. 相似文献
479.
The present study assessed the physical health of a population of girls sentenced to custody in a large US State via medical
examinations and clinical assessments in adolescence and young adulthood. Findings indicated that injuries, obesity, and sexually
transmitted diseases were the norm, with over 50% of the population meeting criteria for each of these health problems. A
dose–response relationship was documented between childhood victimization and injuries and injury risk in adolescence and
self-harm, HIV risk, physical health symptoms, and hospitalizations in young adulthood. The relationship between childhood
victimization and poor adult physical health was fully mediated by health-risk behaviors in adolescence. Clinical and policy
implications of the high mortality and morbidity risk among female juvenile offenders are discussed. 相似文献
480.
Hugh E. Berryman Ph.D. Alicja K. Kutyla M.S. J. Russell Davis II B.S. 《Journal of forensic sciences》2010,55(2):488-491
Abstract: Pork ribs with intact muscle tissue were used in an experimental attempt to identify bullet wipe on bone at distances from 1 to 6 feet with 0.45 caliber, full metal jacket ammunition. This resulted in the unexpected finding of primer‐derived gunshot residue (GSR) deep within the wound tract. Of significance is the fact that the GSR was deposited on the bone, under the periosteum, after the bullet passed through a Ziploc® bag and c. 1 inch of muscle tissue. It is also important to note that the GSR persisted on the bone after the periosteum was forcibly removed. The presence of primer‐derived GSR on bone provides the potential to differentiate gunshot trauma from blunt trauma when the bone presents an atypical gunshot wound. In this study, the presence of gunshot primer residue at a distance of 6 feet demonstrates the potential for establishing maximum gun‐to‐target distance for remote shootings. 相似文献