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851.
852.
Domestic dogs are increasingly involved, often as protagonists, in the forensic scene. Acknowledging this fact and benefiting from the accumulated experience on human mitochondrial DNA (mtDNA) analyses, we propose a standard for Canis familiaris mtDNA sequences as a prerequisite for the launching of the corresponding database.  相似文献   
853.
Sex assessment of skeletal remains plays an important role in forensic anthropology. The pelvic bones are the most studied part of the postcranial skeleton for the assessment of sex. It is evident that a population-specific approach improves rates of accuracy within the group. The present study proposes a discriminant function method for the sex assessment of skeletal remains from a contemporary Mexican population. A total of 146 adult human pelvic bones (61 females and 85 males) from the skeletal series pertaining to the National Autonomous University of Mexico were evaluated. Twenty-four direct metrical parameters of coxal and sacral bones were measured and subsequently, sides and sex differences were evaluated, applying a stepwise discriminant function analysis. Coxal and sacra functions achieved accuracies of 99% and 87%, respectively. These analyses follow a population-specific approach; nevertheless, we consider that our results are applicable to any other Hispanic samples for purposes of forensic human identification.  相似文献   
854.
    
The universality of human nature determines the universality of values andits particularity determines the diversity and plurality of values that is the fundamentaldeterminant of security problems among different value systems. In a narrow sense,value security refers to a situation in which value concepts of a state, region, or anation, social class are not under threat from the external adversaries, which is calledconceptual value security. In a broad sense, value security refers to the consistencybetween the system of realistic value security and that of conceptual value security.National value security encompasses both value security in a nation-state and securityof national values, in which the former is featured by the recognition and acceptance ofa prevailing value in a nation-state, and the latter is characterized by the sovereignty ofnational values. Due to the fact that the issue of value system is a meta-theoretical oneand the security of conceptual value system is part of cultural security, value securityholds a core position in cultural security and is an important component of overallnational security system. Additionally, value security embodies the security of valuepursuits and value criteria in different spheres of the overall national security systemand therefore, it is also an indispensable and flexible support to the overall nationalsecurity.  相似文献   
855.
The aim of this study was to analyze the differential profile of male batterers in prison with and without psychopathy. The sample consisted of 162 perpetrators sentenced for a serious offence against their intimate partner. The prevalence of psychopathy or psychopathic traits, established according to the Psychopathy Checklist-Revised, was about 12%. The psychopathic batterers were younger, more impulsive, more suspicious, and less empathetic and had lower self-esteem than nonpsychopathic batterers. However, the psychopathic batterers were not engaged in intimate femicide more often than were the nonpsychopathic batterers. The severity of the crime was similar in both groups, so it may be attributed to other variables (e.g., substance abuse, intoxication at the time of the offence, violence history, jealousy, etc.). Implications of these results for further research and clinical practice are discussed.  相似文献   
856.
We report on the mitochondrial DNA (mtDNA) analysis of the supposed remains of Francesco Petrarca exhumed in November 2003, from the S. Maria Assunta church, in Arquà Padua (Italy) where he died in 1374. The optimal preservation of the remains allowed the retrieval of sufficient mtDNA for genetic analysis. DNA was extracted from a rib and a tooth and mtDNA sequences were determined in multiple clones using the strictest criteria currently available for validation of ancient DNA sequences, including independent replication. MtDNA sequences from the tooth and rib were not identical, suggesting that they belonged to different individuals. Indeed, molecular gender determination showed that the postcranial remains belonged to a male while the skull belonged to a female. Historical records indicated that the remains were violated in 1630, possibly by thieves. These results are consistent with morphological investigations and confirm the importance of integrating molecular and morphological approaches in investigating historical remains.  相似文献   
857.
Although three-dimensional (3D) coordinates for human intra-skeletal landmarks are among the most important data that anthropologists have to record in the field, little is known about the reliability of various measuring techniques. We compared the reliability of three techniques used for 3D measurement of human remain in the field: grid technique (GT), total station (TS), and MicroScribe (MS). We measured 365 field osteometric points on 12 skeletal sequences excavated at the Late Medieval/Early Modern churchyard in V?eruby, Czech Republic. We compared intra-observer, inter-observer, and inter-technique variation using mean difference (MD), mean absolute difference (MAD), standard deviation of difference (SDD), and limits of agreement (LA). All three measuring techniques can be used when accepted error ranges can be measured in centimeters. When a range of accepted error measurable in millimeters is needed, MS offers the best solution. TS can achieve the same reliability as does MS, but only when the laser beam is accurately pointed into the center of the prism. When the prism is not accurately oriented, TS produces unreliable data. TS is more sensitive to initialization than is MS. GT measures human skeleton with acceptable reliability for general purposes but insufficiently when highly accurate skeletal data are needed. We observed high inter-technique variation, indicating that just one technique should be used when spatial data from one individual are recorded. Subadults are measured with slightly lower error than are adults. The effect of maximum excavated skeletal length has little practical significance in field recording. When MS is not available, we offer practical suggestions that can help to increase reliability when measuring human skeleton in the field.  相似文献   
858.
The online sale of psychoactive substances, including hallucinogens, is becoming a serious problem in many countries. This paper presents and discusses the mass spectrometric, infrared spectroscopic and nuclear magnetic resonance spectroscopic data of 2,5-dimethoxy-4-nitro-β-phenethylamine (2C-N), which was identified in a powder sample seized by the authorities in 2011 in Poland. The molecular mass of 2C-N (226.0954amu) was confirmed in the LC/ESI-QTOFMS experiment. The molecular ion was also observed in the GC-EI/MS spectrum. A characteristic set of ions for the parent substance was found using both chromatographic methods, and when derivatization with trifuluoroacetic anhydride (TFAA) was applied. Two broad dominant bands at 1520cm(-1) and 1342/1322cm(-1), observed in the FTIR spectrum of 2C-N, originated from the nitro group. NMR spectroscopy helped unequivocal elucidation of the structure. The applied identification procedure proved to be a powerful tool to determine the structure of a new designer drug.  相似文献   
859.
Because of the adverse effects that diagenesis exert on ancient skeletal remains, DNA from these samples is often compromised to the point where genetic typing can be challenging. Nevertheless, robust and reliable methods are currently available to allow successful genotyping of ancient specimens. Here we report nuclear DNA-based methods and typing strategies used to analyze 2 human skeletons from a medieval burial. Reliable DNA nuclear profiles were obtained from teeth, whereas mitochondrial DNA analyses in bones were inconclusive. A complete nuclear mini short tandem repeat profile was obtained from a well-preserved premolar, but only a partial one from the femur. Increasing the sensitivity of the polymerase chain reaction system allowed a full profile from the latter, but the presence of artifacts reinforced the idea that the interpretation of this kind of analysis must be performed with caution. The results presented here also indicate that DNA from dental pieces can be better preserved than from bones, even in the case of well-preserved long bones with thick cortical tissue such as the femurs, and have a better chance of successful genetic typing, probably because of the high degree of protection conferred to the DNA by the enamel.  相似文献   
860.
Despite women’s increasing participation in the labour market and attempts to transform the traditional gendered division of work, domestic and care work is still perceived as women’s terrain. This work continues to be invisible in terms of the organisation of production or productive value and domestic and care work continues to be unpaid or low paid. Taking domestic and care work as an expression of the feminisation of labour, this article will attempt to complicate this analysis by first exploring a queer critique of feminisation, and second, by situating feminisation within the context of the coloniality of power. Drawing on research conducted in Austria, Germany, Spain and the UK on the organisation of domestic work in private households, the article will conclude with some observations on the interconnectedness of feminisation, heteronormativity and the coloniality of power in the analysis of the expansion of precarity in the EU zone.  相似文献   
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