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11.
Alexandre Ariel da Fonseca de Souza B.Sc. Cássio Thyone Almeida de Rosa B.Sc. Luciano Chaves Arantes M.Sc. José Roberto Pujol-Luz Ph.D. 《Journal of forensic sciences》2020,65(3):1012-1015
Ants are one of the first insects to find an exposed cadaver and can be present during all stages of decomposition. Although these organisms are not commonly used in postmortem interval estimates, they are to be taken into account on criminal investigations involving human corpses, since they can leave bite marks that can be mistaken for antemortem or perimortem injuries, which could be misleading when ascertaining the occurrence of abuse or physical altercation during a crime. A few studies report the action of ants on human cadavers and even though leaf-cutting ants of the genus Atta are frequently encountered in succession studies that use animal carcasses, there are no records of these fungus-growing species on human corpses. Atta is a genus restricted to the New World, ranging from northern Argentina to southern United States and acts as one of the most conspicuous neotropical herbivores. In this study, we report three cases of violent death that illustrate the impact of ants, especially those of the genus Atta, in a forensic setting. We compare the patterns displayed by postmortem bite injuries caused by leaf-cutter ants and other common species with less robust mandibles. We also present the capability of Atta ants to create artifacts by cutting victim’s clothes in a crime scene, contributing to the knowledge of ant-mediated confounding factors in crime scene investigation. 相似文献
12.
Joanna Almeida Renee M. Johnson Heather L. Corliss Beth E. Molnar Deborah Azrael 《Journal of youth and adolescence》2009,38(7):1001-1014
The authors evaluated emotional distress among 9th–12th grade students, and examined whether the association between being
lesbian, gay, bisexual, and/or transgendered (i.e., “LGBT”) and emotional distress was mediated by perceptions of having been
treated badly or discriminated against because others thought they were gay or lesbian. Data come from a school-based survey
in Boston, Massachusetts (n = 1,032); 10% were LGBT, 58% were female, and ages ranged from 13 to 19 years. About 45% were Black, 31% were Hispanic, and
14% were White. LGBT youth scored significantly higher on the scale of depressive symptomatology. They were also more likely
than heterosexual, non-transgendered youth to report suicidal ideation (30% vs. 6%, p < 0.0001) and self-harm (21% vs. 6%, p < 0.0001). Mediation analyses showed that perceived discrimination accounted for increased depressive symptomatology among
LGBT males and females, and accounted for an elevated risk of self-harm and suicidal ideation among LGBT males. Perceived
discrimination is a likely contributor to emotional distress among LGBT youth. 相似文献
13.
Ferreira da Silva LA Pimentel BJ Almeida de Azevedo D Pereira da Silva EN Silva dos Santos S 《Forensic science international》2002,130(2-3):187-188
The polymorphism of nine STR loci has been studied in a sample of 598 individuals from the population of Alagoas, Northeastern Brazil. Determination of the allele frequencies as well as of several commonly used statistics in forensic and paternity testing were defined. The most polymorphic loci were TH01 and D7S317. The exact test demonstrated that the nine loci analyzed in the population have no deviation from Hardy-Weinberg equilibrium (P > 0.05). 相似文献
14.
Soares-Vieira JA Muñoz DR Iwamura ES de Almeida Cardoso L Billerbeck AE 《The American journal of forensic medicine and pathology》2001,22(3):308-312
As the first step, the locus D1S80 was amplified by the polymerase chain reaction technique from genomic DNA extracted from artificial bloodstains and crusts with different amount of blood (32 microl, 16 microl, 8 microl, 4 microl, 2 microl, and 1 microl). In all samples of bloodstains and crusts, identification by DNA analysis was possible. As the second step, the locus HLA-DQA1 was amplified from genomic DNA extracted from diluted blood samples (640, 320, 160, 80, 40, 20, 10, and 5 leukocytes). DNA amplification was possible in diluted blood samples with at least 10 leukocytes. Considering the conditions in which the present study was carried out, it was possible to conclude that 1 microl of bloodstains or crusts was enough for identification. It was also concluded that five leukocytes are not enough material to render consistent DNA identification. 相似文献
15.
Shells and Bones: A Forensic Medicine Study of the Association of Terrestrial Snail Allopeas micra with Buried Human Remains in Brazil 下载免费PDF全文
Malthus Fonseca Galvão Ph.D. M.D. José Roberto Pujol‐Luz Ph.D. Cristiane Vieira de Assis Pujol‐Luz Ph.D. Cássio Thyone Almeida de Rosa B.Sc. Luiz Ricardo L. Simone Ph.D. M.D. Sônia Nair Báo Ph.D. Karine Brenda Barros‐Cordeiro M.Sc. Larissa Pessoa M.Sc. Giovanna Bissacot D.M.D. 《Journal of forensic sciences》2015,60(5):1369-1372
Little is known regarding the scavenger fauna associated with buried human corpses, particularly in clandestine burials. We report the presence of 20 shells of the terrestrial snail Allopeas micra, within hollow bones of human remains buried for 5 years, during the process of collecting DNA material. The fact that a large number of shells of A. micra had been found in the corpse and in the crime scene supports the assumption that there was no attempt to remove the corpse from the area where the crime occurred. Despite this, our observations cannot be used to estimate the postmortem interval because there is no precise knowledge about the development of this species. This is the first record of a terrestrial snail associated with a human corpse and its role in this forensic medicine case. 相似文献
16.
Forensic Use of A Subtropical Blowfly: The First Case Indicating Minimum Postmortem Interval (mPMI) in Southern Brazil and First Record of Sarconesia Chlorogaster from a Human Corpse 下载免费PDF全文
Karine P. Vairo M.Sc. Rodrigo C. Corrêa M.Sc. Melise C. Lecheta M.Sc. Maria F. Caneparo M.Sc. Kleber M. Mise Ph.D. Daniel Preti BSc. Claudio J.B. de Carvalho Ph.D. Lucia M. Almeida Ph.D. Mauricio O. Moura Ph.D. 《Journal of forensic sciences》2015,60(Z1):S257-S260
Southern Brazil is unique due to its subtropical climate. Here, we report on the first forensic entomology case and the first record of Sarconesia chlorogaster (Wiedemann) in a human corpse in this region. Flies' samples were collected from a body indoors at 20°C. Four species were found, but only Chrysomya albiceps (Wiedemann) and S. chlorogaster were used to estimate the minimum postmortem interval (mPMI). The mPMI was calculated using accumulated degree hour (ADH) and developmental time. The S. chlorogaster puparium collected was light in color, so we used an experiment to establish a more accurate estimate for time since initiation of pupation where we found full tanning after 3 h. Development of C. albiceps at 20°C to the end of the third instar is 7.4 days. The mPMI based on S. chlorogaster (developmental time until the third instar with no more than 3 h of pupae development) was 7.6 days. 相似文献
17.
High‐Resolution Melting (HRM) of Hypervariable Mitochondrial DNA Regions for Forensic Science 下载免费PDF全文
Alípio dos Santos Rocha M.Sc. Isis Salviano Soares de Amorim M.Sc. Tatiana de Almeida Simão Ph.D. Adenilson de Souza da Fonseca Ph.D. Rodrigo Grazinoli Garrido Ph.D. Andre Luiz Mencalha Ph.D. 《Journal of forensic sciences》2018,63(2):536-540
Forensic strategies commonly are proceeding by analysis of short tandem repeats (STRs); however, new additional strategies have been proposed for forensic science. Thus, this article standardized the high‐resolution melting (HRM) of DNA for forensic analyzes. For HRM, mitochondrial DNA (mtDNA) from eight individuals were extracted from mucosa swabs by DNAzol reagent, samples were amplified by PCR and submitted to HRM analysis to identify differences in hypervariable (HV) regions I and II. To confirm HRM, all PCR products were DNA sequencing. The data suggest that is possible discriminate DNA from different samples by HRM curves. Also, uncommon dual‐dissociation was identified in a single PCR product, increasing HRM analyzes by evaluation of melting peaks. Thus, HRM is accurate and useful to screening small differences in HVI and HVII regions from mtDNA and increase the efficiency of laboratory routines based on forensic genetics. 相似文献
18.
Susana Almeida Lopes 《International Journal of the Legal Profession》2016,23(2):207-231
This paper elucidates findings in relation to bridging exclusive and inclusive approaches to talent management at law firms that could promote the revision of the up-or-out career model. We explore the competencies required for career success, and we describe high-performing lawyers and their peers’ profiles. We surveyed 358 lawyers and stakeholders of the lawyering role in 12 European and Latin American countries. The stakeholders noted that high performance in an array of competencies is necessary for a lawyer’s career success, but they still valued legal skills the most. Debunking the superhero myth, we argue that high performers have a narrow focus on legal skills as the driver for innovative solutions for clients, but lack strength in interpersonal competencies. In contrast, their peers have more adaptable mindsets and are more relational and focused on quality. Rather than challenging the up-or-out career model, which overvalues the role of high performers, we propose that the talent management exclusive approach is a good fit, and therefore promotes only a minimum of change. For talent management that ensures business sustainability, we support a more inclusive approach linked with strategic talent mapping and assessments that use several competency profiles and present several possible career paths. 相似文献
19.
The social problems of drug abuse are a matter of increasing global problem. Nowadays, international agencies need fresh methods to monitor trends of the use of illicit drugs. In this sense, small amounts of drugs are transferred to banknotes and they could be detected and quantified. An analytical procedure based upon extraction with organic solvent, liquid chromatography separation, and mass spectrometric detection allowed the identification of 21 drugs and metabolites in 120 used Euro banknotes collected in the Canary Islands (Spain). Most of the banknotes analyzed showed detectable drug residues (92.5%). Cocaine was the most frequently detected drug, present in approximately 90% of the samples. In addition, 75%, 35%, and 15% of the banknotes showed residues of amphetamine derivatives, opiates, and benzodiazepines, respectively. An average of three drug residues per banknote was detected. In summary, the presence of drug residues in banknotes could be useful as tracer for drugs prevalence. 相似文献
20.
Pupal survival of three blowfly species, Chrysomya albiceps, Chrysomya megacephala, and Chrysomya putoria (Diptera: Calliphoridae) and the parasitoid species Nasonia vitripennis (Hymenoptera: Pteromalidae) was studied after the pupae were experimentally submerged in water. Non-parasitized pupae at different developmental stages, 0, 24, 48, and 72 h, and parasitized pupae after 3, 8, 10, and 12 days of development were submerged for 6, 24, 48, or 72 h. Control groups for each pupal developmental stage (parasitized or not), which were not submerged, were also observed in order to compare the adult emergence rates. The survival of white pupae (0 h/age) decreased with time of submergence for all three blowfly species, showing the lowest rates compared with other experimental pupa groups. For the three blowfly species, non-parasitized pupae at 24 and 48 h of age showed survival rates above 60%. However, for pupae at 72 h of age, the survival rates decreased with increased underwater time, with less than 30% survival after 72 h in C. putoria and C. albiceps. The survival of parasitoids inside blowfly pupae that were submerged during their larval stage (3 days/age) decreased with the increase of submergence time. After the parasitoids reached the pre-pupal life stage, the survival was higher for all underwater periods. These observations can be useful in investigations of the decomposition of partially submerged bodies, or in cases of pupae found adhering to decaying flesh, hair, or clothes of corpses that were submerged after the larvae had developed and pupated. 相似文献