全文获取类型
收费全文 | 156篇 |
免费 | 4篇 |
专业分类
各国政治 | 11篇 |
工人农民 | 4篇 |
世界政治 | 24篇 |
外交国际关系 | 10篇 |
法律 | 46篇 |
中国政治 | 2篇 |
政治理论 | 61篇 |
综合类 | 2篇 |
出版年
2023年 | 3篇 |
2022年 | 1篇 |
2021年 | 4篇 |
2020年 | 4篇 |
2019年 | 4篇 |
2018年 | 4篇 |
2017年 | 3篇 |
2016年 | 5篇 |
2015年 | 3篇 |
2014年 | 3篇 |
2013年 | 17篇 |
2012年 | 5篇 |
2011年 | 3篇 |
2010年 | 3篇 |
2009年 | 6篇 |
2008年 | 4篇 |
2007年 | 6篇 |
2006年 | 2篇 |
2005年 | 6篇 |
2004年 | 6篇 |
2003年 | 6篇 |
2002年 | 6篇 |
2001年 | 1篇 |
2000年 | 7篇 |
1999年 | 3篇 |
1998年 | 2篇 |
1997年 | 1篇 |
1996年 | 3篇 |
1995年 | 2篇 |
1994年 | 5篇 |
1993年 | 1篇 |
1992年 | 4篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1989年 | 3篇 |
1988年 | 5篇 |
1987年 | 2篇 |
1986年 | 3篇 |
1985年 | 1篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1973年 | 1篇 |
1971年 | 1篇 |
1968年 | 1篇 |
1967年 | 1篇 |
排序方式: 共有160条查询结果,搜索用时 15 毫秒
141.
Teri A. Garstka Alice Lieberman Jacklyn Biggs Betsy Thompson Michelle Marie Levy 《Journal of public child welfare》2014,8(2):190-211
Cross-systems collaboration between child welfare, education, and the courts benefits when challenges and priorities are identified early. We measured perceptions of educational stability in foster youth with a statewide survey of 1,603 professionals in education, child welfare, and the courts. Results reveal commonalities among perceived challenges to collaboration across systems (e.g., multiple foster care placements; school changes) and differences in perceived importance or significance of a given issue by professional group. Results guided collaborative work in Kansas and may assist other states seeking strategies that inform cross-systems collaboration to improve educational well-being for youth in foster care. 相似文献
142.
143.
This paper reviews the rationales expressed by businessmen for corporate philanthropy as an alternative to both individual charity and government provision of some types of charitable services. Three hypotheses explaining the aggregate level of corporate giving are then tested. The paper concludes with a list of potential hypotheses to be tested about corporate philanthropy when the data become available. 相似文献
144.
Jenna Weissman Joselit Ron Christenson Marion J. Levy Randall Collins Stefan Collini 《Society》1995,33(1):65-80
the author of numberous works in U.S. Jewish history and culture. Her most recent book is The Wonders of America: Reinventing Jewish Culture, 1880–1950. 相似文献
145.
Susan J. Popkin George C. Galster Kenneth Temkin Carla Herbig Diane K. Levy Elise K. Richer 《Journal of policy analysis and management》2003,22(2):179-199
Between 1992 and 1996 the U.S. Department of Housing and Urban Development (HUD) settled a number of legal cases involving housing authorities and agreed to take remedial action as part of court‐enforced consent decrees entered into with plaintiffs. These housing authorities faced significant obstacles that impaired their ability to comply swiftly and fully with all of the elements in the desegregation consent decrees. The obstacles fell into two broad categories: contextual obstacles (racial composition of waiting lists and resident populations, lack of affordable rental housing, and inadequate public transportation), and capacity and coordination obstacles (conflict among implementing agencies and ineffective monitoring by HUD). Findings presented here highlight the sizable potential delay between the time a legal remedy is imposed and when plaintiffs in public housing segregation disputes realize any benefits. They also reinforce the argument that implementation problems will be legion when policies impose a significant scope of required changes on a large number of actors who must collaborate, yet are not uniformly capable or sympathetic to the goals being promoted. © 2003 by the Association for Public Policy Analysis and Management. 相似文献
146.
Negrusz A Moore CM Stockham TL Poiser KR Kern JL Palaparthy R Le NL Janicak PG Levy NA 《Journal of forensic sciences》2000,45(5):1031-1040
The hypnotic benzodiazepine flunitrazepam (Rohypnol) has been identified as the drug of choice for the purposes of "drugging" unsuspecting victims and raping them while they are under the influence of this substance. The objective of this paper was to study elimination of flunitrazepam and 7-aminoflunitrazepam in urine collected from ten healthy volunteers who received a single 2 mg oral dose of Rohypnol, to determine how long after drug administration 7-aminoflunitrazepam can be detected. A highly sensitive NCI-GC-MS method for the simultaneous quantitation of flunitrazepam (LOQ 100 pg/mL) and 7-aminoflunitrazepam (LOQ 10 pg/mL) in urine was developed. All samples were screened for benzodiazepines using optimized micro-plate enzyme immunoassay. The highest concentrations of 7-aminoflunitrazepam (70-518 ng/mL) and flunitrazepam (0.7-2.8 ng/mL) in urine were observed 6 h after drug administration in nine subjects and after 24 h in one subject. In six subjects 7-aminoflunitrazepam was detected up to 14 days after flunitrazepam administration, in one subject up to 21 days and in three subjects up to 28 days. In urine samples collected from six volunteers, flunitrazepam was detected three days after Rohypnol intake, in three subjects 24 h, and in one subject 5 days later. Benzodiazepine micro-plate enzyme immunoassay kit allowed the detection of flunitrazepam and metabolities 5 to 21 days after drug administration. 相似文献
147.
148.
149.
Improved method for the detection of TATP after explosion 总被引:3,自引:0,他引:3
Muller D Levy A Shelef R Abramovich-Bar S Sonenfeld D Tamiri T 《Journal of forensic sciences》2004,49(5):935-938
TATP in post explosion exhibits was reported earlier to be best recovered from vapor phase. A typical procedure includes its adsorption on Amberlite XAD-7, elution with acetonitrile and analysis by GC/MS. In this work, improved recovery of TATP from the vapor phase was achieved by SPME using PDMS/DVB fiber and immediate sampling to GC/MS. The recovery of TATP by SPME was compared with headspace and with adsorption on Amberlite XAD-7 by spiking onto filter paper put in a 100 mL beaker. The limit of detection of TATP was 6.4 ng in these conditions, few orders magnitude more than in the other tested methods. Recovery of TATP in the presence of various solvents was also studied. Acetone, water, and mixtures of water:alcohols (1:1) were found to reduce the recovery of TATP. Using SPME, TATP has been identified in dozens of post-explosion cases. 相似文献
150.
A heroin distribution chain was simulated by taking three different seizures and preparing four additional samples from each seizure by adding a paracetamol-caffeine mixture in varying amounts, resulting in three different batches each composed of five samples. All of the samples from the three batches were analyzed using HPLC with a UV-PDA detector at a wavelength of 230 nm. The area ratio of various opium alkaloids, acetylation products and components were compared. From the results of the UV area ratios, the fifteen samples could readily be separated into three batches of five samples, with each batch of five samples having a common origin. 相似文献