全文获取类型
收费全文 | 1740篇 |
免费 | 54篇 |
专业分类
各国政治 | 118篇 |
工人农民 | 78篇 |
世界政治 | 170篇 |
外交国际关系 | 111篇 |
法律 | 754篇 |
中国政治 | 20篇 |
政治理论 | 528篇 |
综合类 | 15篇 |
出版年
2023年 | 10篇 |
2022年 | 7篇 |
2021年 | 11篇 |
2020年 | 23篇 |
2019年 | 55篇 |
2018年 | 51篇 |
2017年 | 54篇 |
2016年 | 59篇 |
2015年 | 38篇 |
2014年 | 42篇 |
2013年 | 348篇 |
2012年 | 46篇 |
2011年 | 36篇 |
2010年 | 41篇 |
2009年 | 40篇 |
2008年 | 61篇 |
2007年 | 45篇 |
2006年 | 59篇 |
2005年 | 47篇 |
2004年 | 47篇 |
2003年 | 53篇 |
2002年 | 43篇 |
2001年 | 43篇 |
2000年 | 30篇 |
1999年 | 37篇 |
1998年 | 29篇 |
1997年 | 23篇 |
1996年 | 21篇 |
1995年 | 27篇 |
1994年 | 25篇 |
1993年 | 27篇 |
1992年 | 22篇 |
1991年 | 25篇 |
1990年 | 17篇 |
1989年 | 25篇 |
1988年 | 21篇 |
1987年 | 17篇 |
1986年 | 24篇 |
1985年 | 17篇 |
1984年 | 27篇 |
1983年 | 14篇 |
1982年 | 14篇 |
1981年 | 11篇 |
1980年 | 8篇 |
1979年 | 12篇 |
1978年 | 12篇 |
1977年 | 6篇 |
1975年 | 5篇 |
1972年 | 5篇 |
1969年 | 5篇 |
排序方式: 共有1794条查询结果,搜索用时 31 毫秒
911.
The ethics of forensic professionalism is often couched in terms of competing individual and societal values. Indeed, the welfare of individuals is often secondary to the requirements of society, especially given the public nature of courts of law, forensic hospitals, jails, and prisons. We explore the weaknesses of this dichotomous approach to forensic ethics, offering an analysis of Psychology's historical narrative especially relevant to the national security and correctional settings. We contend that a richer, more robust ethical analysis is available if practitioners consider the multiple perspectives in the forensic encounter, and acknowledge the multiple influences of personal, professional, and social values. The setting, context, or role is not sufficient to determine the ethics of forensic practice. 相似文献
912.
913.
Philip Matthew Stinson Sr. John Liederbach L. Fleming Fallon Jr. Hans Schmalzried 《Criminal Justice Studies》2014,27(1):4-19
Sheriff’s offices are an integral component of the public health emergency preparedness and response system in the USA. During a public health emergency or disaster, sheriff’s offices need to communicate with people affected by the event. Sheriff’s office websites are logical sources for information about disaster preparedness and response efforts. No prior research evaluates emergency preparedness and response resources available through sheriff’s office websites. The current research is a national study of sheriff’s office websites to assess the availability of information relating to emergency preparedness and response. A content analysis of 2590 sheriff’s office website homepages was conducted to determine the presence or absence of nine communications elements important to people seeking information during an emergency or disaster. We found that 71.9% of sheriff’s office website homepages include links to agency services and programs, but only 6.5% provide links to emergency preparedness information. The findings of the study are useful to assess emergency preparedness and the amount of response information available, as well as to identify opportunities to improve sheriff’s office website homepages. 相似文献
914.
915.
916.
Reece Jones 《Space and Polity》2014,18(3):285-300
Partitions are based on two fundamental assumptions: identity groups exist that can be located, named and categorized, and these categories are attached to distinct territories. Drawing on the Partition of British India, this paper analyses how the differences between the categories “Hindu” and “Muslim” were developed through narratives and events such as the creation of maps and censuses, the emergence of religious revivalist movements, and the use of violence. The article argues that the perception of sharp boundaries between what are termed “territorial groups of meaning” is the result of these events and narratives, not the cause of them. 相似文献
917.
Vacuum metal deposition (VMD) is an established technique for the development of latent fingerprints on non-porous surfaces. VMD has advantages over cyanoacrylate fuming, especially in circumstances where prints are old, have been exposed to adverse environmental conditions, or are present on semi-porous surfaces. Under normal circumstances, VMD produces 'negative' prints as zinc deposits onto the background substrate and not the print ridges themselves. A phenomenon of 'reverse' development, when zinc deposits onto the print ridges and not the background, has been reported by many authors but its causes have not been conclusively identified.Four plastic substrates were used in this study and these could be easily divided into two groups based on the types of development observed as the amount of deposited gold was increased. On group I plastics, identified as low-density polyethylene (LDPE), normal development then reverse development and finally no development resulted with increasing gold. On group II plastics, identified as high-density polyethylene (HDPE), normal development then over-development and finally poor-quality normal development resulted with increasing gold. Our results suggest that the difference between these plastic types causes variations in the gold film structure which in turn dictates the nature of the zinc deposition.On group I plastics, the structure and thickness of the gold film has been identified as the critical factor in the occurrence of normal or reverse development. Thin gold films on plastic substrates form small 'clusters' (or agglomerates) rather than the atoms being uniformly spread over the surface. The size and shape of these clusters is critical. Once the clusters reach a certain morphology, they no longer act as nucleation sites for zinc, and hence, zinc will not deposit onto the substrate.On group II plastics, results suggest that the gold clusters are smaller and more densely packed. Hence, even though the same amount of gold has been deposited, the gold clusters in this case do not reach the critical morphology and so continue to act as nucleation sites for zinc.Typically, zinc will not deposit onto the fingerprint ridges as the gold nucleation sites are buried within the print residue. However, when more gold is deposited, gold emerges at the surface of the latent print allowing zinc deposition onto the ridges.The rate of gold evaporation was found not to affect the structure of the gold film, although a slower rate of evaporation resulted in more effective deposition. 相似文献
918.
919.
920.
David Seth Jones 《Asian Journal of Political Science》2013,21(2):70-93
The article examines the recent changes made to the elite corps of the Singapore Civil Service, the Administrative Service, in response to the challenges it faces as a result of the rapid economic and social transformation of the country over the last 30 years. One challenge is to overcome the shortfall of personnel in the Administrative Service resulting from the availability of more attractive and lucrative careers in the burgeoning private sector. A second challenge facing the Administrative Service is to remain attuned to the new needs and circumstances of the economy and the society at large. For this reason, Administrative Service officers are required to work in commercial or community‐based organisations for part of their careers. 相似文献