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161.
Cristiane Barbosa D'Oliveira Matielo M.S. Rafael Plá Matielo Lemos Ph.D. Deise Schröder Sarzi M.S. Lilian de Oliveira Machado Ph.D. Dalvan Carlos Beise Bac. Priscila Caroline Thiago Dobbler M.S. Renata Machado Castro Bac. Mauro Sander Fett Ph.D. Luiz Fernando Würdig Roesch Ph.D. Flávio Anastácio de Oliveira Camargo Ph.D. Valdir Marcos Stefenon Ph.D. 《Journal of forensic sciences》2020,65(1):259-265
DNA is one of the fastest growing tools in forensic sciences, increasing reliability in forensic reports and judgments. The use of DNA has increased in different areas of the forensic sciences, such as investigation of plant species, where plastid DNA has been used to elucidate and generate evidence in cases of traceability of genetically modified and controlled plants. Even with several advances and the practice of using DNA in forensic investigations, there are just few studies related to the identification of genetic tools for the characterization of drug and nondrug-types of Cannabis. Herein, the whole plastomes of two drug-type Cannabis are presented and have their structures compared with other Cannabis plastomes deposited in the GenBank, focusing in the forensic use of plastome sequences. The plastomes of Cannabis sativa “Brazuka” and of the hybrid Cannabis AK Royal Automatic presented general structure that does not differs from the reported for other C. sativa cultivars. A phylogenomic analyses grouped C. sativa “Brazuka” with the nondrug C. sativa cultivars, while the hybrid Cannabis AK Royal Automatic placed isolated, basal to this group. This suggests that the analysis of plastomes is useful toward genetic identification of hybrids in relation to C. sativa. 相似文献
162.
Mitchell Messner M.D. Sarah E. Meyers M.D. Walter L. Kemp M.D. Ph.D. 《Journal of forensic sciences》2020,65(2):487-491
Previous studies suggest cardiovascular pathologists are less accurate than noncardiovascular pathologists (e.g., clinical pathologists) in estimating the degree of coronary artery stenosis. To further investigate the effect of training on accurate estimation of coronary artery stenosis, we designed a study to compare the accuracy of estimates made by forensic pathologists versus medical students. Six forensic pathologists and twelve medical students each independently examined 24 images of coronary artery cross sections and gave an estimate of the degree of stenosis. When comparing all 24 images, the forensic pathologists had a median difference between the estimated percentage of stenosis and actual percentage of stenosis of −12.380 and the medical students had a median difference of −16.50 (p-value of 0.08542). In estimating the percentage of stenosis, training in forensic pathology does not guarantee significantly improved accuracy compared with medical students. Our study showed no consistent statistically significant difference between estimates given by forensic pathologists and by medical students. 相似文献
163.
Charlotte Murphy Ph.D. June Kenna M.Sc. Lorna Flanagan Ph.D. Marce Lee Gorman B.Sc. Clara Boland Ph.D. Jennifer Ryan Ph.D. 《Journal of forensic sciences》2020,65(2):399-405
This study is the first to examine the background level of male DNA on underpants worn by females in the absence of sexual contact. Here, we examined 103 samples from the inside front of underpants from 85 female volunteers. Samples were examined for the presence of male DNA using NGM SElect and PowerPlex Y23 kits. Only five samples gave a “complete” Y-STR profile, even though 83.5% of our volunteers cohabited with a male. In all cases where a partner reference sample was available, the Y-STR profile matched the cohabiting partner. We have demonstrated that a Y-STR profile is not expected on the inside front of underpants worn by females after social contact alone. The results of this study are informative for evaluating the significance of a Y-STR profile on underpants in cases of alleged sexual assault. 相似文献
164.
Alex J. Krotulski M.S.F.S. Susan Jansen Varnum Ph.D. Barry K. Logan Ph.D. 《Journal of forensic sciences》2020,65(2):550-562
Novel psychoactive substances (NPS) are synthetic drugs that pose serious public health and safety concerns. A multitude of NPS have been identified in the United States, often implicated in forensic investigations. The most common and effective manner for identifying NPS is by use of mass spectrometry and the true utility lies within nontargeted acquisition techniques. During this study, a liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) assay was developed, validated, and implemented for forensic toxicology testing. A SCIEX TripleTOF™ 5600 + with SWATH® acquisition was used. Resulting data were compared against an extensive library database containing more than 800 compounds. The LC-QTOF-MS assay was applied to the reanalysis of biological sample extracts to discover emergent NPS. More than 3,000 sample extracts were analyzed, and more than 20 emerging NPS were detected for the first time. Among these were isopropyl-U-47700, 3,4-methylenedioxy-U-47700, fluorofuranylfentanyl, N-methyl norfentanyl, 2F-deschloroketamine, 3,4-methylenedioxy-alpha-PHP, eutylone, and N-ethyl hexedrone. 相似文献
165.
文章为谁而写,是法学研究需要解决的基础性命题。从近二十年约2.5万篇法学核心期刊文章的大数据机器学习分类结果看,我国的法学研究成果呈多重目标格局,其中近三成服务于执法机关(包括行政机关和司法机关),同时也有为立法者、执政者建言献策的成果。经检验,目标受众类型的选择与论文的传播能力以及获得基金支持的机会之间有显著相关性。这一决定成果影响力大小的机制迟早会被个体习得并不断强化,成为研究者选择目标受众类型的重要因素。该机制良性运转的关键是处理好学者和实践受众的关系,保持学术研究必要的自主性,警惕学术研究在追逐发表、经济支持时被有关主体“认知俘获”。 相似文献
166.
This article aims to assess the role of important socio-economic factors in the family history of tuberculosis patients in Pakistan. Data were collected from 269 patients, and a logistic regression was used to determine the association between risk factors and the vicious circle of TB. Results of the logistic model show that significant risk factors associated with TB history in patients were education, household size, house structure, rooms in the home, room ventilation, monthly income, income food sufficiency, smoking, diabetes, and heart disease. The current TB control programme needs to formulate strategies to target specific risk factors and poverty reduction simultaneously to break the vicious circle of tuberculosis. 相似文献
167.
This article explores the potential of using children’s perceptions of distance to reflect a gendered understanding of remoteness. Data collected from 1,549 children in Tanzania concerning their perceptions of remoteness in relation to accessibility of school, health care, and water resources were analysed in reference to their impact on school attendance and performance. Gendered variability in perceived distances to services by children may indicate that remoteness is as much of a social issue as it is a geographic phenomenon, in that girls perceive distance and time between home and destination to be further than boys who travel approximately the same distance. 相似文献
168.
Access to reproductive health services and products in remote and rural communities is a critical area of concern for developing countries. This article considers a pilot intervention in three districts of Pakistan where “Business-in-a-Box” as a model of place-based social innovation is used to improve the socio-economic conditions of women in remote rural settings through socially responsible micro-franchising. It finds that such programmes help build a sense of community, ownership and grassroots capabilities and skills. The article also discusses the impacts of such actions on the individual and community life, and the need to upscale and sustain these initiatives. 相似文献
169.
Olamide Oguntoye Martin Geissdoerfer Henry Nuwarinda Steve Evans 《Development in Practice》2019,29(1):115-121
This viewpoint reflects on how to improve the process of introducing facilitated industrial symbiosis programmes (FISPs) to small and medium enterprises (SMEs) in developing countries. Although FISPs are a long-established industrial practice, their formal introduction to SMEs in developing countries has only recently begun, mostly through support from international development agencies. Based partly on anecdotal evidence from Gauteng, South Africa, we identify six key questions which need to be addressed to improve the process of facilitating FISPs. 相似文献
170.
This article is an analysis of the changing role of research on local governments in Central and Eastern Europe (CEE) within mainstream European studies. It refers to dependency theory (Wallerstein, Prebish) as applied to scientific research. It classifies CEE as being in the semi-periphery of academic research. The empirical analysis consists of two parts: (1) qualitative review of the most important of the comparative studies of European local governments. It includes a discussion on the role of local governments and researchers from CEE in these studies; (2) quantitative based on an analysis of articles published in international journals and citations for those articles in Scopus. The analysis covers 14 countries (all new member states who joined the EU from 2004 onwards, plus the Balkan countries: Albania, Macedonia, and Serbia). 相似文献