全文获取类型
收费全文 | 776篇 |
免费 | 34篇 |
专业分类
各国政治 | 51篇 |
工人农民 | 105篇 |
世界政治 | 63篇 |
外交国际关系 | 42篇 |
法律 | 390篇 |
中国政治 | 6篇 |
政治理论 | 151篇 |
综合类 | 2篇 |
出版年
2023年 | 3篇 |
2022年 | 3篇 |
2021年 | 4篇 |
2020年 | 8篇 |
2019年 | 23篇 |
2018年 | 26篇 |
2017年 | 34篇 |
2016年 | 31篇 |
2015年 | 23篇 |
2014年 | 25篇 |
2013年 | 133篇 |
2012年 | 31篇 |
2011年 | 38篇 |
2010年 | 24篇 |
2009年 | 18篇 |
2008年 | 36篇 |
2007年 | 32篇 |
2006年 | 21篇 |
2005年 | 29篇 |
2004年 | 23篇 |
2003年 | 22篇 |
2002年 | 11篇 |
2001年 | 11篇 |
2000年 | 15篇 |
1999年 | 13篇 |
1998年 | 7篇 |
1997年 | 12篇 |
1996年 | 8篇 |
1995年 | 19篇 |
1994年 | 11篇 |
1993年 | 10篇 |
1992年 | 8篇 |
1991年 | 2篇 |
1990年 | 5篇 |
1988年 | 11篇 |
1987年 | 4篇 |
1986年 | 6篇 |
1985年 | 7篇 |
1984年 | 5篇 |
1983年 | 9篇 |
1982年 | 13篇 |
1981年 | 8篇 |
1979年 | 5篇 |
1978年 | 6篇 |
1977年 | 2篇 |
1976年 | 4篇 |
1975年 | 4篇 |
1970年 | 1篇 |
1967年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有810条查询结果,搜索用时 15 毫秒
781.
782.
783.
784.
785.
786.
An archive of 5 years of cases involving the identification of human remains was curated, collecting information on: The sample type submitted, the number of STR loci yielding interpretable results, the kinship challenge posed, and the outcome for the case. A total of 129 cases of remains ID were investigated using manual DNA extraction and recovery methods with amplification of STR markers using the Power Plex 21 multiplex STR kit from Promega Corp. In 52 cases, blood spots collected by the ME were provided as sample and in 100% of those cases, probabilities of relatedness to the reference samples was ≥99%. In 77 cases, tissue other than blood was provided as a source of DNA. These other samples were grouped categorically into long bones (femur and tibia; 40 cases), skull bones/teeth (11 cases), other bones (16 cases), and tissue (normally adherent to bone) (10 cases). Reference samples provided for cases included alleged parents or child(ren) of the victim (86 cases), alleged full siblings of the victim (38 cases), or alleged second-order relatives (five cases). The overall success rate in confirming the identity of the source of the remains in these cases was 89.2%. Our results demonstrate that a laboratory can be often successful identifying human remains using methods easily implemented in any DNA typing laboratory. 相似文献
787.
Mélanie Loiseau MD Alice Matheux PharmD PhD Sandrine Sabini PharmD Stéphanie Cavard MD Anne-Sophie Advenier MD Agathe Pasquet Irène François-Purssell MD PhD Pascal Guerard MD PhD 《Journal of forensic sciences》2023,68(6):2200-2204
Nitrites are commonly used in the chemical, pharmaceutical, and food industries. Recently, they have been identified in cases of voluntary intoxication. We report the case of a 13-year-old girl who was found lifeless on her bed next to a glass containing a white powder and a bottle containing a white powder with a moistened appearance. External examination and autopsy revealed a nonspecific asphyxia syndrome, which was confirmed by the pathological analysis. Analysis of the samples revealed metoclopramide in the peripheral blood at a concentration of 0.402 mg/L (LC–HRMS). An analysis of the gastric contents was carried out after sodium nitrite was detected in the powders found near the body (Raman spectrometry). Nitrites were found in the gastric fluid at a concentration of 30.9 mg/L. Death occurred secondary to anoxia, following ingestion of nitrites; suicide kits are available on the web and nitrites are relatively easy to source and inexpensive. Nitrites are delivered in powder form to be dissolved in liquid, which may then be consumed with metoclopramide (or an alternative anti-emetic drug) to maximize absorption and reduce emesis. The toxic effect of nitrites lies in their oxidizing power, causing the transformation of hemoglobin into methemoglobin, which, when it accumulates, induces tissue anoxia resulting in death. There has been an alarming increase in the number of cases linked to suicide using nitrites or a nitrite suicide kit. The fact that nitrites are readily available online underscores the importance of establishing effective preventive measures such as limiting the access and use of this chemical. 相似文献
788.
The institutional landscape for public land management in the U.S. West underwent a seismic shift in the 1990s as the long‐dominant resource extraction paradigm was replaced by the ecosystem management paradigm. Here we analyze the efforts of community‐based organizations (CBOs), entities that emerged in some locations across the West to help their respective communities navigate the transition from resource extraction to environmental stewardship. Despite their formal status as civil society actors, in practice CBOs came to fill various institutional gaps by taking on roles traditionally assigned to both the state and the private sector. We use a case study approach to examine how the Hayfork, California–based Watershed Research and Training Center engages in institutional work within a setting that is at once both open and constrained, as the rural community within which it operates lacks strong state‐ or industry‐led development trajectories while remaining constrained by the legacies of past institutions. 相似文献
789.
Jane Gingrich 《管理》2015,28(1):41-60
Many scholars have argued that social programs are marked by a logic of “increasing returns” that makes change difficult. Yet over the past decades, reformers across industrialized countries have introduced substantial administrative reforms in these services, even as entitlement reform remains politically difficult. This paper explains these shifts by breaking apart the logic of “increasing returns” into three distinct “costs to change”: technical, political, and expectations. Decreases in a particular type of costs produce different logics of institutional change—back end, informal, and front end—that privilege the state, professionals or private, or political actors in distinct ways. I support these claims by reexamining three cases that were considered exemplars of stability but that ultimately had major entitlement reform: health care in the United Kingdom and United States and welfare programs in the United States. I show that even before radical reforms occurred, reformers introduced distinct logics of administrative change that underpinned later changes. 相似文献
790.
Ian Buchanan Geoffrey Danaher Anthea Fraser Gupta Jane Long John Marks Sanjay Srivastava 《社会征候学》2013,23(3):335-355
Gilles Deleuze and the Question of Philosophy PHILIP GOODCHILD London: Associated University Presses, 1996 Baudelaire and Schizoanalysis: The Sociopoetics of Modernism EUGENE HOLLAND Cambridge, Cambridge University Press, 1993 Australian Television and International Mediascapes STUART CUNNINGHAM & ELIZABETH JACKA Melbourne: Cambridge University Press, 1996 Sociolingwistics and Language History: Studies based on the Corpus of Early English Correspondence TERTTU NEVALAINEN & HELENA RAUMOLIN‐BRUNBERG (Eds) Language and Computers: Studies in Practical Linguistics No 15, Amsterdam/Atlanta., GA: Rodopi, 1996 Fear of the Dark. ‘Race’, Gender and Sexuality in the Cinema LOLA YOUNG London and New York: Routledge, 1996 Deleuze: A Critical Reader PAUL PATTON (Ed.) Oxford: Blackwell, 1996 A Guattari Reader GARY GENOSKO (Ed.) Oxford: Blackwell, 1996 Counterworks. Managing the Diversity of Knowledge R. FARDON (Ed.) London: Routledge, 1995 相似文献