全文获取类型
收费全文 | 479篇 |
免费 | 29篇 |
专业分类
各国政治 | 15篇 |
工人农民 | 64篇 |
世界政治 | 93篇 |
外交国际关系 | 10篇 |
法律 | 221篇 |
中国政治 | 7篇 |
政治理论 | 92篇 |
综合类 | 6篇 |
出版年
2024年 | 1篇 |
2023年 | 6篇 |
2022年 | 3篇 |
2021年 | 7篇 |
2020年 | 15篇 |
2019年 | 16篇 |
2018年 | 26篇 |
2017年 | 27篇 |
2016年 | 14篇 |
2015年 | 20篇 |
2014年 | 14篇 |
2013年 | 47篇 |
2012年 | 28篇 |
2011年 | 15篇 |
2010年 | 12篇 |
2009年 | 10篇 |
2008年 | 34篇 |
2007年 | 37篇 |
2006年 | 22篇 |
2005年 | 29篇 |
2004年 | 17篇 |
2003年 | 16篇 |
2002年 | 15篇 |
2001年 | 7篇 |
2000年 | 3篇 |
1999年 | 2篇 |
1998年 | 5篇 |
1997年 | 2篇 |
1996年 | 3篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1993年 | 7篇 |
1992年 | 4篇 |
1991年 | 4篇 |
1990年 | 5篇 |
1989年 | 1篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 8篇 |
1984年 | 3篇 |
1982年 | 5篇 |
1981年 | 3篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有508条查询结果,搜索用时 343 毫秒
411.
Wildlife forensics has recently been recognized among the wide variety of forensic science disciplines. This review compares human and wildlife DNA forensics, which use the same genetic tools, but often for far different purposes. Human forensic genetics almost invariably attempts to identify individual perpetrators involved in a given crime. Wildlife forensics often determines whether a crime has occurred. In addition to techniques familiar in human laboratories, like individual matching with STRs, wildlife analysts may be asked to determine the taxonomic identity, geographic source, or sex of evidence items, or the familial relationships or minimum number of individuals among a group of samples. This review highlights the common questions, legal framework, databases, and similar validation requirements to foster understanding between disciplines. Based on this understanding, human and wildlife DNA practitioners may work together and learn from each other in order to elevate the discipline of forensic genetics. 相似文献
412.
In human social interactions, punishment is often directed at cheating individuals. Subjective reports and neuro-imaging studies indicate that the experience of interacting with a cheat produces negative emotions and that the act of punishing a cheat assuages these feelings. However, while negative emotions may elicit punishment, the precise source of these emotions remains obscure. Specifically, it is often very difficult to tease apart whether punishing individuals are inequity averse (upset because cheating partner receives more than they should) or, more simply, whether they might be loss averse (upset because their payoffs did not meet their expectations). We compare results on punishment and inequity aversion in humans with results from a non-human model system, the cleaning mutualism between bluestreak cleaner wrasse (Labroides dimidiatus) and its reef-fish ??clients??. Male cleaner fish are known to punish females that cheat during joint client inspections, but a recent study failed to demonstrate evidence for inequity aversion in this species. We suggest that punishment in cleaner fish may be motivated by loss aversion rather than inequity aversion. Punishment in humans might also often be motivated by loss aversion??and empirical studies that disentangle the two competing motives for punishment are a clear research priority. 相似文献
413.
This article presents the results of a pilot study on the effects of vulture modification to human remains. A donated body from the Willed Body Donation Program was placed at the Forensic Anthropology Research Facility (FARF), an outdoor human decomposition laboratory located at Texas State University-San Marcos. The effects of vulture scavenging on the timing and sequence, and the rate of skeletonization, disarticulation, and dispersal were observed via a motion sensing camera and direct observation. Using GIS (Geographic Information Systems) and GPS (Global Positioning System) technologies and spatial analytical methods, the transport of skeletal elements was mapped in order to analyze dispersal and terrain-influenced patterns of active vulture scavenging. Results showed that the initial scavenging took place 37 days after placement at FARF. This delay in scavenging differs from previous research. After the initial appearance of the vultures, the body was reduced from a fully-fleshed individual to a skeleton within only 5h. This underscores the potential for errors in postmortem interval estimations made at vulture scavenged scenes. Additionally, spatial analysis showed that skeletal elements were dispersed by vultures to lower elevations, and that the disarticulation and dispersal of the skeletal elements occurs early in the scavenging sequence. 相似文献
414.
415.
Schoeneman-Morris KA Scalora MJ Chang GH Zimmerman WJ Garner Y 《Journal of forensic sciences》2007,52(5):1142-1147
To better understand inappropriate correspondence sent to public officials, 301 letter cases and 99 email cases were randomly selected from the United States Capitol Police investigative case files and compared. Results indicate that letter writers were significantly more likely than emailers to exhibit indicators of serious mental illness (SMI), engage in target dispersion, use multiple methods of contact, and make a problematic approach toward their target. Emailers were significantly more likely than letter writers to focus on government concerns, use obscene language, and display disorganization in their writing. Also, letter writers tended to be significantly older, have more criminal history, and write longer communications. A multivariate model found that disorganization, SMI symptoms, problematic physical approach, and target dispersion significantly differentiated between the correspondence groups. The group differences illuminated by this study reveal that letter writers are engaging in behavior that is higher risk for problematic approach than are emailers. 相似文献
416.
417.
Katherine Smits 《Nationalism and Ethnic Politics》2014,20(1):43-62
The strong public support for displays of Maori culture since the mid-1980s in New Zealand under biculturalism appears paradoxical. Cultural values of respect for tradition, community, hierarchy, and attachment to place are promoted abroad and incorporated into public institutions at home at the same time as neoliberal economic policies emphasize individualism, self-reliance, rational behavior, and mobility. This article argues that Maori cultural practices supply the values of communal belonging and solidarity that were previously associated by the public with the New Zealand state. Thus, they support a postmodern conception of national identity and guarantee the legitimacy of the neoliberal state. 相似文献
418.
419.
Using the results of a recent survey of federal employees and focus groups of the same population, this article extends previous research on the existence of a glass ceiling in the federal bureaucracy. Even when controlling for differences between the sexes in human capital factors, work habits, work opportunities, and personal circumstances, women who have been in the federal bureaucracy from zero to 10 years and from 20 to 30 years have not advanced in their professions as successfully as have men. In contrast to and departing from previous research, there is little evidence that a glass ceiling has been experienced among women who have worked in the bureaucracy between 10 and 20 years. Additional findings consistent with past literature include the fact that among women who have faced gender-based barriers, those who chose to have children during their careers have been especially disadvantaged. We conclude that the glass ceiling on the federal level, where apparent, has been multidimensional and quite subtle. 相似文献
420.
Katherine R. Jolluck 《澳大利亚政治与历史杂志》2018,64(1):162-163
Crimes Unspoken: The Rape of German Women at the End of the Second World War . By Miriam Gebhardt. Translated by Nick Somers (Cambridge: Polity, 2017), pp.vii + 252. £18.17 (hb). 相似文献