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Thirty human urines screened positive by the Syva enzyme multiple immunoassay technique (EMIT) d.a.u. urine cannabinoid assay were also positive for the major marijuana urinary metabolite 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid (THC-COOH) when assayed by gas chromatographic/mass spectrometric (GC/MS) and a noninstrumental qualitative bonded-phase adsorption/thin-layer chromatographic (BPA-TLC) technique. The noninstrumental BPA-TLC procedure was the simpler of the two techniques to perform and interpret. Assay of these same samples by the Roche Abuscreen radioimmunoassay (RIA) for cannabinoids (125I) revealed that reliance on the 100-ng/mL equivalent positive calibrator yielded a high incidence of false negative results (10 out of 30). The performance of these same 4 assays on 30 true negatives also was evaluated. All samples were negative for cannabinoids by EMIT and RIA, and for THC-COOH by BPA-TLC. GC/MS assay, however, detected spurious low levels of approximately 5-ng/mL THC-COOH in two instances. Because of this, a reliability level of 10 ng/mL was set for the routine quantitative confirmation of THC-COOH by the GC/MS method. 相似文献
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Bini C Ceccardi S Ferri G Pelotti S Alù M Roncaglia E Beduschi G Caenazzo L Ponzano E Tasinato P Turchi C Buscemi L Mazzanti M Tagliabracci A Toni C Spinetti I Domenici R Presciuttini S 《Forensic science international》2005,153(2-3):231-236
Many X-chromosome short tandem repeats (X-STRs) have been validated for forensic use even if further studies are needed on allele frequencies and mutation rates to evaluate the extent of polymorphism in different populations and to establish reference databases useful for forensic applications and for anthropological studies. A single multiplex reaction of seven X-STRs, which includes the DXS6789, HUMARA, DXS10011, DXS7423, HPRTB, DXS6807, DXS101 loci, is presented and their allele frequency distribution in a large population sample including 556 subjects (268 females and 288 males) analysed by five forensic laboratories of Central and Northern Italy is shown. Our results demonstrate the feasibility of a single amplification/detection reaction involving seven markers of the X chromosome, which can be fruitfully used in complex kinship analysis. 相似文献
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Syed Al Atahar 《Development in Practice》2014,24(2):258-271
In 1998 the Jamuna Multi-Purpose Bridge (JMB), the largest infrastructure development project in Bangladesh was completed. Huge numbers of households were affected by the project and many were displaced. Only a handful of displaced people were resettled by the project. The JMB was the first development project in Bangladesh that included resettlement activities as an integral part of the project and introduced a resettlement action plan. In principle, the Revised Resettlement Action Plan endorsed the primary principle of Operational Directives 4:30 of the World Bank. The resettlement project's core objective was to improve the living standards of project-affected persons above their previous level, or at least reinstate their pre-project standard. To meet the goals, various grants and supports were given as compensation. The project has earned international admiration as an example for other projects to follow. This study investigates the extent to which Jamuna Multi-Purpose Bridge's compensation-based resettlement succeeded in reconstructing displaced households, and identifies discrepancies between policy and practice. It concludes with major findings and comparative analysis on the compensation principle, and provides opinions based on information gathered from the field. 相似文献
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S Presciuttini A Caglià M Alù A Asmundo L Buscemi L Caenazzo E Carnevali E Carra Z De Battisti F De Stefano R Domenici A Piccinini N Resta U Ricci V L Pascali 《Forensic science international》2001,122(2-3):184-188
A sample of 1176 males from 10 Italian regions have been typed for DYS19, DYS389-I, DYS389-II, DYS390, DYS391, DYS392, DYS393, and DYS385. Individual haplotype data are available on line. A low degree of variation is present among regions. Use of this database is specifically recommended for forensic applications in Italy. 相似文献
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本运用社会学的方法,对华北一个村庄改革开放后近20年的农村人口流动状况进行调查研究,发现村中的人口流动并不单纯是向外流动,而是表现为有出有进的双向流动,通过了解村中外来农民工的工作生活状况,发现地区发展的差异,会导致不同地区农村之间在劳动力就业市场上也存在分层性-人们的就业愿望和选择能力是有层次性差异的。经济水平高的地区农民较之经济水平较低地区的农民就业要求高一些、选择就业的范围大一些。而由于血缘与地缘关系的存在以及其它一些因素,劳动力就业市场又是分割的。两种方向的人口流动互相影响,共同推动村落经济社会的发展。 相似文献