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The presence of cocaine in illicit drug samples is still being determined in some laboratories using spot tests and microcrystal tests. Seventeen chemical species were tested using three different spot tests (Wagner, Marquis, and cobalt thiocyanate followed by stannous chloride reactions) and two microcrystal tests (gold chloride and platinic chloride) to determine whether the results could be differentiated from the results of these tests on cocaine. The data obtained indicated that nine of the 17 compounds gave results similar to those from cocaine using the three spot tests, but that the results from microcrystal testing allowed for differentiation of all nine compounds from cocaine. 相似文献
14.
Megan H. Bair-Merritt William C. Holmes John H. Holmes Jamie Feinstein Chris Feudtner 《Journal of family violence》2008,23(5):325-332
We sought to determine whether intimate partner violence (IPV) risk factors differed depending upon the presence of children
in the home, and to estimate the annual prevalence of IPV first in the general population and then in homes with and without
children. We analyzed data from a cross-sectional random sample of 6,836 women in southeastern Pennsylvania interviewed by
telephone in 2004. The magnitude of association between IPV and risk factors varied between homes with and without children
for women’s alcohol problems (with children, odds ratio (OR) 7.7; 95% confidence interval (CI) 2.9, 20.9; without children,
OR 2.4; 95% CI 0.9, 6.0), and mental health problems (with children, OR 4.0; 95% CI 1.8, 8.9; without children, OR 3.0; 95%
CI 1.6, 5.7). Poverty was significantly associated with IPV only in homes without children (OR 3.6; 95% CI 1.9, 7.2). Annual
IPV prevalence was 1.2% overall, 1.4% in homes with children, and 1.1% in homes without children. One in 63 children lived
in a home with IPV. Differences in IPV risk factors in homes with and without children suggest distinct underlying IPV mechanisms
or consequences in these contexts. 相似文献
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Jamie Glister 《The Modern law review》2004,67(6):1032-1034
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Jamie K. Pringle Ph.D. John P. Cassella Ph.D. John R. Jervis Ph.D. Anna Williams Ph.D. Peter Cross M.Sc. Nigel J. Cassidy Ph.D. 《Journal of forensic sciences》2015,60(4):1052-1060
In homicide investigations, it is critically important that postmortem interval and postburial interval (PBI) of buried victims are determined accurately. However, clandestine graves can be difficult to locate; and the detection rates for a variety of search methods (ranging from simple ground probing through to remote imaging and near‐surface geophysics) can be very low. In this study, simulated graves of homicide victims were emplaced in three sites with contrasting soil types, bedrock, and depositional environments. The long‐term monthly in situ monitoring of grave soil water revealed rapid increases in conductivity up to 2 years after burial, with the longest study evidencing declining values to background levels after 4.25 years. Results were corrected for site temperatures and rainfall to produce generic models of fluid conductivity as a function of time. The research suggests soilwater conductivity can give reliable PBI estimates for clandestine burials and therefore be used as a grave detection method. 相似文献
17.
Lacan’s psychoanalytical theory is of interest to legal theorists for a number of reasons. In particular, the concept of the Name of the Father allows a sophisticated theorisation of law and legal institutions. However, the Name of the Father was not Lacan’s only theory of law. In his final Seminars, Lacan developed a second and fundamentally different theory of law: the sinthome. By drawing upon Roberto Harari’s commentary on Lacan’s concept of the sinthome, the sinthome can be investigated in terms of topology, chaos, and morphogenetic theories. This can allow a complex theory of the sinthome to be put forward as real, immanent, emergent ordering through the de-limiting of singularities. From this a concept of Sinthome Law can be developed as a novel concept of law, and as a potential way to understand some contemporary problematics in law. The example of the emerging law on electronic signatures is introduced to indicate this. 相似文献
18.
Jamie K. Pringle Ph.D. John R. Jervis Ph.D. James D. Hansen B.Sc. Glenda M. Jones Ph.D. Nigel J. Cassidy Ph.D. John P. Cassella Ph.D. 《Journal of forensic sciences》2012,57(6):1467-1486
Abstract: This study provides forensic search teams with systematic geophysical monitoring data over simulated clandestine graves for comparison to active cases. Simulated “wrapped” and “naked” burials were created. Multigeophysical surveys were collected over a 3‐year monitoring period. Bulk ground resistivity, electrical resistivity imaging, multifrequency ground‐penetrating radar (GPR), and grave and background “soil‐water” conductivity data were collected. Resistivity surveys revealed the naked burial had consistently low‐resistivity anomalies, whereas the wrapped burial had small, varying high‐resistivity anomalies. GPR 110‐ to 900‐MHz frequency surveys showed the wrapped burial could be detected throughout, with the “naked” burial mostly resolved. Two hundred and twenty‐five megahertz frequency GPR data were optimal. “Soil‐water” analyses showed rapidly increasing (year 1), slowly increasing (year 2), and decreasing (year 3) conductivity values. Results suggest resistivity and GPR surveys should be collected if target “wrapping” is unknown, with winter to spring surveys optimal. Resistivity surveys should be collected in clay‐rich soils. 相似文献
19.
A 2010 UK police search for a clandestine burial highlighted the need for more information and quantitative data to aid coastal beach searches. This study aimed to address this by establishing relevant forensic search methodologies to aid the search for clandestine coastal burial sites, using the North West English coastline as a search area. A set of parameters were established, including criteria such as tidal range, proximity to vehicular access points and distance from inhabited areas, which may inform forensic searches by prioritising likely locations of clandestine burials. Three prioritised coastal locations were subsequently identified: (1) coastal dunes at Formby, (2) coastal dunes and (3) beach foreshore at Southport, all sites part of the Liverpool City Region in the United Kingdom. At all locations, simulated clandestine graves were hand-dug by spades into which a naked adult-sized, metal-jointed fiberglass mannequin was buried at 0.5 m below ground level. Trial geophysical surveys were then undertaken with the aim of identifying the optimal geophysical instrumentation and technique to deploy in such environments. GPR data showed 450 MHz frequency antennae to be optimal, with significantly poor data obtained from the foreshore area due to saline seawater. Electrical resistivity and magnetic susceptibility surveys were successful in coastal environments in target detection (albeit not in non-vegetated sand dunes), with resistivity fixed-offset configurations deemed optimal. The latter survey successes may be due to the recent disturbed 'grave' rather than the target, which itself is of interest in terms of identifying the most recent clandestine burials. 相似文献
20.
Ryan C. Meldrum Jacob T. N. Young Carter Hay Jamie L. Flexon 《Journal of Quantitative Criminology》2012,28(4):673-699