657 research outputs found

    Understanding the experience of psychopathology after intimate partner violence: The role of personality

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    Objectives: To fully understand the dynamics of Intimate Partner Violence (IPV) it is necessary to understand the role of personality. The current understanding of which personality characteristics are associated with IPV victimization is, however, far from comprehensive. Given this gap in the literature, our objective was to examine the associations between the dimensions of the psychobiological model of personality and psychopathological symptoms in women who had experienced IPV. Methods: Using a case-control design, a group of women who had experienced IPV and who were living in shelters ( Results: Victims of IPV showed significantly higher levels of Harm Avoidance and Self-Transcendence, and lower levels of Reward Dependence and Self-Directedness, than the non-IPV control group. Victims of IPV also reported elevated levels of psychopathological symptoms. Personality dimensions showed a broadly consistent pattern of associations across different psychopathological symptoms. A regression analysis indicated that Novelty Seeking was negatively associated with psychopathological symptoms in victims of IPV, but not significantly associated in non-victims. Conclusions: The study highlights the important role of Harm Avoidance and Self-Directedness for understanding psychopathological symptoms. Novelty Seeking appears to play an important role in the expression of individuals\u27 experiences of IPV. These results have important implications for research and practice, particularly the development and implementation of interventions

    Calcifying odontogenic cyst : a 26-year retrospective clinicopathological analysis and immunohistochemical study

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    Background: To identify the prevalence and clinicopathological profile of calcifying odontogenic cysts (COC) stored at an oral pathology service, and to analyze the immunoexpression of cyclooxygenase 2 (COX-2) and cyclin D1 (CD1) in these cysts. Material and Methods: After a retrospective analysis (1990-2016) carried out to identify cases of COC, a sample of 12 cases was selected for immunohistochemical analysis of COX-2 and CD1 by the immunoperoxidase technique. Protein expression was evaluated semiquantitatively by attributing a score of 0 to 3 (0 = no staining; 1 = 1-25%; 2 = 26-50%, and 3 = >51% immunopositive cells). Results: Twenty cases of COC were diagnosed over the study period. These cysts were more common in the posterior mandible and in men (male-to-female ratio of 1.2:1), with a mean age of 29.9 years. Among the 12 cases analyzed, immunoexpression of COX-2 was observed only in the inflammatory infiltrate in 50% of the cysts (n = 6). Protein CD1 was detected (score 1) in 66.6% of cases (n = 8), and COX-2 was negative in 50% (n = 6). Conclusions: The prevalence of COC among all odontogenic cysts was 3.5%, representing an uncommon lesion. Immunohistochemical analysis suggested that COX-2 does not participate in lesion progression. The cell proliferation index of COC was low, as demonstrated by the expression of CD1, suggesting a proliferative profile compatible with more indolent lesion

    SUPORTES INVESTIGATIVOS E MINERAÇÃO DIGITAL: SISTEMATIZANDO RIQUEZAS QUE VÊM DOS DADOS

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    Este artículo tuvo como sujeto los abordajes paradigmáticos que involucran la investigación, en especial las investigaciones en Educación. Se justifica como un texto direccionado para los investigadores iniciales y docentes que impartan asignaturas relacionadas a la metodología de investigación. Tuvo como objetivo general discutir abordajes paradigmáticos referentes a las investigaciones en Educación. Y como objetivos específicos: articular conceptos relativos a los abordajes metodológicos y debatir especificidades paradigmáticas. Se partió de autores como Denzin y Lincoln (2010), Lincoln y Guba (2010), Kuhn (1998), Flick (2009), Estrela (1992), entre otros. Metodológicamente es una investigación teórica, exploratoria, basada en investigación bibliográfica ejecutada por fichas mezcladas. Se aportaron conceptos de variados autores sobre el abordaje cualitativo y cuantitativo, sus aspectos constitutivos (ontológicos, epistemológicos, axiológicos y metodológicos), además de los paradigmas que los basan. Así, el artículo trae contribuciones que pueden ayudar a pensar la aprehensión de la realidadThis article had as subject the paradigmatic approaches that involves the research, especially Educational researches. It´s justified as being a geared text toward the beginner researchers and professors who teach disciplines related to research methodology. It had as main objective to discuss paradigmatic approaches related to Educational researches. And as specific objectives: to articulate concepts related to methodologic approaches and to debate paradigmatic specificities. It started from authors as Denzin and Lincoln (2010), Lincoln and Guba (2010), Kuhn (1998), Flick (2009), Estrela (1992), etc. Methodologically it is a theoretic research, exploratory, based in bibliographical research made by mixed file. It contributed with concepts from many authors about quantitative and qualitative approaches, their constitutive aspects (ontological, epistemological, axiological, and methodologic), as well as its paradigmatic bases. So, this article brings contributions that may help to think about the reality’s apprehension.Este artigo tem como objetivo aportar o vislumbre de alguns suportes que permitem sistematizar riquezas investigativas oriundas de dados já produzidos e dispersos pela internet, além de apresentar a mineração digital. Para tanto, realizamos um estudo qualitativo, do tipo bricolagem, por meio do qual foi possível explorar teórica e metodologicamente, cinco perspectivas de suporte investigativo, a partir de um panorama atual sobre pesquisa, sendo: Diário de Pesquisa Digital; Fichamento Digital e Checklist Digital; e a Mineração Digital, apresentada como um tipo de pesquisa quanto aos procedimentos. Evidenciamos que neste processo de garimpar e lapidar os achados, foi possível apresentar aspectos contemporâneos sobre os modos de referências para os suportes investigativos diante do contexto de crescente uso das tecnologias digitais. Portanto, compreendemos que mudanças de paradigmas, de espaços, de características entre outros tendem a nos convocar para seguir por outros caminhos, e foi a partir desta provocação que chegamos até aqui, perspectivando potencialidades e limitações dos suportes investigativos

    Delayed epistaxis secondary to intracavernous pseudoaneurysm of internal carotid artery

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    Post-traumatic pseudoaneurysm of the internal carotid artery is a very rare but potentially fatal cause of epistaxis. Early diagnosis is essential for an adequate management of this entity. The authors present a case of pseudoaneurysm of the internal carotid artery that developed massive epistaxis six months after skull base trauma.Pseudoaneurisma traumático da artéria carótida interna é uma causa rara de epistaxe, porém potencialmente fatal. O diagnóstico precoce é essencial para um adequado manejo da patologia. Os autores relatam um caso de pseudoaneurisma da carótida interna que se apresentou como epistaxe maciça após seis meses de trauma craniano prévio.Hospital do Servidor Público do Estado de São Paulo Serviço de Otorrinolaringologia/Cabeça e PescoçoUniversidade Federal de São Paulo (UNIFESP) Escola Paulista de MedicinaUNIFESP, EPMSciEL

    Clinical and radiographic features of pycnodysostosis : a case report

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    Pycnodysostosis is a rare disorder that was first described in 1962; however, it was only in 1996 that the defective gene was discovered, which led to a better understanding of this disease. This study reports and discuss a case of pycnodysostosis. In addition, a search of articles published in PubMed-Medline was performed. The case was a 13-year-old girl who was referred to a private clinic for dental treatment. Clinical examination showed midface hypoplasia, prominent cheeks, a high nasal bridge, beaked nose, spoon-shaped fingers, frontal bossing, open fontanelles and dental alterations, findings compatible with pycnodysostosis. Patients with this disease also suffer from fractures because of bone hardness with almost no elasticity, a fact that requires special care particularly in the case of children and adolescents. The diagnosis of pycnodysostosis is made based on clinical and radiographic findings. Clinicians should be aware of this disorder to provide adequate dental treatment

    Reconhecimento de Dígitos em Imagens de Medidores de Energia no Contexto de um Aplicativo de Autoleitura / Digit Recognition in Energy Meter Images in the Context of a Self-Reading Application

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    Segundo a Agência Nacional de Energia Elétrica (ANEEL), perdas não-técnicas são aquelas relacionadas a furtos de energia e impedimento de acesso às unidades consumidoras. Uma alternativa viável e de menor custo para a redução dessas falhas seria a leitura realizada pelo próprio consumidor, denominada de autoleitura.  Esse processo engloba o uso de plataformas digitais, por meio das quais o consumidor registraria e enviaria as informações de consumo. Uma etapa primordial desse processo é o reconhecimento automático de dígitos em medidores por meio de imagens. Este trabalho propõe um método computacional para a realização dessa tarefa. São utilizados os descritores de característica Histogram of Oriented Gradients (HoG) e Local Self-similarity (LSS) de forma combinada e o classificador Máquina de Vetores de Suporte (SVM). O método alcança acurácia de 97,90% e 96,72%, respectivamente, para o reconhecimento de dígitos em medidores digitais e analógicos.

    Sr ISOTOPES BY LA-MC-ICP-MS PROCEDURES COUPLED WITH THE MACS3 REFERENCE MATERIAL IN A CORAL SAMPLE: A RECORD OF ENVIRONMENTAL CHANGES: Isótopos de Sr analisados por LA-MC-ICP-MS como material de referência MACS3 em uma amostra de coral: um registro de mudanças ambientais

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    The main aim of this work is to demonstrate that the Laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) is a powerful tool for the analysis of strontium (Sr) isotopes in corals. This work discusses certification strategies for Sr isotopes determination, using reference material (RM) analyses and the results treatment based on detailed data acquired in biological materials, a coral sample. To obtain reliable results, it is essential to properly adjust the mass spectrometer and laser ablation system. Adjusting the equipment to its maximum intensity does not always result in correct 87Sr/86Sr ratios. Therefore, the optimization of the mass spectrometer was performed using the reference material NIST SRM-987 (solution) and adjusting the correct Sr isotope ratio to the reference material (USGS MACS3 and NIST-612, solids) before each analytical session. The protocol applied the solid reference material USGS MACS3 with an isotopic ratio 87Sr/86Sr of 0.72000. The values obtained for this RM varied between 0.7012 and 0.7014, with a correction factor calculated between 0.990 and 0.988. In order to account for potential drifts in the mass spectrometer during an analytical session, the application of bracketing correction and the use of the most convenient reference material are suggested. The analytical uncertainty of Sr data obtained by LA-MC-ICP-MS is comparable to studies carried out on other carbonate materials. The results of ablation techniques are reproducible within the analytical error, which implies that this technique produces robust results when applied to coral carbonates. In addition, several comparative measurements of different reference materials (e.g. USGS MACS3 and NIST 612) and the comparison of the 87Sr/86Sr ratios highlight the robustness of the method. The results along the coral growth axes showed a decrease in the 87Sr/86Sr ratio from the inner to the outer layer of the coral (from 0.70920 to 0.70627), which indicate variations in the availability of particulate matter during the coral growth, probably related to local marine environmental changes.- O objetivo principal deste trabalho é demonstrar que a espectrometria de massa com plasma indutivamente acoplado e ablação a laser (LA-MC-ICP-MS) é uma ferramenta poderosa para a análise de isótopos de Sr em corais. Este trabalho discute estratégias de certificação para determinação de isótopos de Sr, usando análises de material de referência e o detalhamento do tratamento dos resultados adquiridos em materiais biológicos (coral). Para obter resultados confiáveis, é essencial ajustar adequadamente o espectrômetro de massas e o sistema de ablação a laser de forma a obter a intensidade máxima e em seguida promover as correções para obter as razões 87Sr / 86Sr corretas. Nestes termos, a otimização do espectrômetro de massa foi realizada usando o material de referência NIST SRM-987 (em solução) que em sequência foi migrado para a ablação a laser com ajuste da razão isotópica Sr correta para o material de referência (NIST-612, vidro), antes de cada sessão analítica. O protocolo incluiu a utilização material de referência sólido USGS MACS3 com razão isotópica 87Sr / 86Sr de 0,72000. Os valores obtidos para esta RM variaram entre 0,7012 e 0,7014, com fator de correção calculado entre 0,990 e 0,988. A fim de contabilizar possíveis desvios no espectrômetro de massa durante uma sessão analítica, sugere-se a aplicação de correção de bracketing e o uso do material de referência com a mesma matriz. Os resultados das técnicas de ablação são reproduzíveis dentro do erro analítico, o que indica que esta técnica produz resultados robustos quando aplicada a carbonatos de coral. Além disso, várias medições comparativas de diferentes materiais de referência (por exemplo, USGS MACS3 e NIST 612) e a comparação das suas respectivas razões 87Sr / 86Sr destacam a robustez do método. Os resultados ao longo dos eixos de crescimento do coral mostraram uma diminuição na razão 87Sr / 86Sr da camada interna para a externa do coral (de 0,70920 para 0,70627). Estes resultados sugerem variações na disponibilidade de material particulado durante o crescimento do coral, provavelmente relacionado a mudanças ambientais marinhas locais. Palavras-chave: Carbonato biológico. Isótopos de Sr. LA-MC-ICP-MS. Materiais de referência. Metodologia. Ambiente marinho. &nbsp
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