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101.
A Molecular Method to Detect Wound Cells in Bloodstains Resultant of Sharp Force Injuries for Crime Scene Reconstruction 下载免费PDF全文
Donald J. Johnson M.S. David E. Raymond Ph.D. Cynthia Chen M.S. Matthew Quon M.S. Julian Lis M.S. Mo Re Choi M.S. Christopher Lopez M.S. Aileen Han Ray D. de Leon Ph.D. Cynthia Bir Ph.D. 《Journal of forensic sciences》2018,63(3):842-848
Previous research by the authors on an animal model showed that bloodstains can contain additional information about their somatic origin in the form of wound cells. Bloodstains produced by a gunshot wound to the head were distinguished from bloodstains produced by a gunshot wound to the chest by testing the stains for a brain microRNA marker. In this study, the effectiveness of the technique was examined on blood drops shed externally from a stab wound to the liver of rat carcasses. Specifically, investigations were conducted on the liver microRNA marker, rno‐mir‐122‐3p, with the QIAGEN miScript System, and PCR analysis. Between the two stabbing methods used, 67% of the scalpel blades and 57% of the blood drops tested positive for rno‐mir‐122‐3p; however, other samples tested negative giving inconclusive results as to the wound‐of‐origin. The amount of the liver cells in the bloodstains appeared to be related to the extent of trauma. 相似文献
102.
Balbi T Fusco M Vasapollo D Boschetto R Cocco P Leon A Farruggio A 《Journal of forensic sciences》2005,50(3):630-632
The postmortem levels of biogenic amines in cerebrospinal fluid may represent a useful tool in defining some pathological conditions; no information is available concerning the occurrence of trace amines in postmortem cerebrospinal fluid. Thus, the occurrence of octopamine, synephrine and tyramine were evaluated by using a HPLC system in 20 postmortem samples of cerebrospinal fluid (obtained from 11 males and 9 females) and their levels were compared with those of 20 living subjects (obtained from 11 males and 9 females). The results show that trace amines dramatically increase in the postmortem cerebrospinal fluid (100, 20, and 4 fold increase for tyramine, octopamine, and synephrine respectively). To our knowledge, our data represent the first time trace amines have been identified in postmortem cerebrospinal fluid and the dramatic increase observed for tyramine has the potential of becoming a new tool in forensic science for better defining the time of death. 相似文献
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Gomez De Leon J 《Estudios demográficos y urbanos》1998,13(3):585-608, 695
"This is a mainly methodological work: a generalization of the so-called proportional risk models to cases of multiple and competing risks.... Proportional risk models are an extension of the methodology implied in calculating mortality tables, where the risk function is made to depend on some variables (covariables), as in a regression model.... Life-table methodology has been...an essential instrument in demographic calculus and analysis." The author uses the proposed methods to analyze the determinants of the legalization and dissolution of consensual unions in Mexico. (EXCERPT) 相似文献
106.
Leon G. Higley Ph.D. Tierney R. Brosius Ph.D. Karl J. Reinhard Ph.D. David Carter Ph.D. 《Journal of forensic sciences》2016,61(5):1356-1358
We tested procedures for removing adipocere from insect samples to allow identification. An acceptable procedure was determined: (i) Samples were sorted in petri dishes with 75% alcohol to remove any larvae, adult insects, or other soft‐bodied material. (ii) Samples of up to 24 puparia were placed in a vial with 15 mL of 95% acetone, capped, and vortexed for a total of 30–90 sec in 10‐ to 15‐sec bursts. This step removed large masses of adipocere or soil from specimen. (iii) Specimens were removed from acetone and placed in a vial of 15 mL of 2% potassium hydroxide (KOH) and vortexed in 10‐ to 15‐sec bursts until all puparia appeared clean (with our samples this required a total of 60–120 sec). (iv) Specimens were removed from the 2% KOH, placed in 75% ethanol, and examined microscopically. (v) Material was stored in 75% ethanol for identification and long‐term preservation. 相似文献
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Leon V. Sigal 《Political science quarterly》1999,114(2):349-350
109.
Sandra Leon 《Regional & Federal Studies》2017,27(5):645-665
ABSTRACTThis paper reviews the most important characteristics and of the Spanish Intergovernmental Councils (IGCs) and theorizes about the effect of the increasing fragmentation of the party system on the nature and dynamics of multilateral bargaining in IGCs. The essential argument is that party system fragmentation may have an impact on IGCs through its effect on the formation of minority and coalition governments. These types of governments may put an end to the two-bloc confrontation, bring to the system higher levels of party congruence between levels of government and lower the costs of compromise, three factors that may help to grease the bargaining process and, in turn, enhance the achievement of intergovernmental cooperation agreements. The positive effect will be conditional on several factors, namely the ideological coherence of inter-party alliances, the predominant type of government in the system (coalition or single-party minority) and the duration of governments. 相似文献
110.