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Mostrando 1-12 de 4977 artigos, teses e dissertações.
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1. Transmission electron microscopy of pili annulati
Abstract Background: Little is known about the ultrastructure of pili annulati. Objectives: To examine with transmission electron microscopy affected hairs of a family, whose diagnosis had been confirmed in five individuals with scanning electron microscopy, which showed surface undulations with ‘‘curtain-like’’ folding of the hair cuticula and to
Anais Brasileiros de Dermatologia. Publicado em: 2022
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2. Impressions of the chronic 900-MHz electromagnetic field in the prenatal period on Purkinje cells in male rat pup cerebella: is it worth mentioning?
SUMMARY OBJECTIVE: The aim of this study was to examine the changes on the Purkinje cells in the cerebella of male rat pups born to pregnant dams that were exposed to an electromagnetic field in the prenatal period. METHODS: The first stage of the study involved 12 Sprague-Dawley rats, 6 male and 6 female, weighing between 180 and 250 g. The female rats in
Revista da Associação Médica Brasileira. Publicado em: 2022
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3. The reliability and validity of decreased sound tolerance scale-screening
Abstract Objectives: Decreased Sound Tolerance (DST) is a negative reaction to a sound that does not cause any reaction in an individual with normal hearing. DST’s subclasses include hyperacusis, phonophobia, and misophonia, which are distinct and have therapy variations. There is no diagnostic method or scale that distinguishes them in the literature. Th
Brazilian Journal of Otorhinolaryngology. Publicado em: 2022
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4. The dilemma of choosing obstetrics and anesthesia techniques in a patient with cerebral cavernomatosis: a case report
Abstract This report describes the case of a pregnant woman who arrived for preanesthetic assessment of External Cephalic Version (ECV) for fetus in breech presentation and cesarean section in case of ECV failure. Although the technique seems simple, attempts to rotate the fetus can result in elevated intracranial pressure, which might cause malformation ble
Brazilian Journal of Anesthesiology. Publicado em: 2022
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5. Uma análise sobre a estrutura de competição dos setores de acordo com a intensidade tecnológica
Resumo O objetivo deste estudo é enfatizar a importância das estruturas de competição nos diferentes setores de acordo com a intensidade tecnológica e com as importantes teorias de Melitz (2003) e Baldwin e Harrigan (2011). Utilizando dados dos 70 principais exportadores e importadores, estimamos a relação entre vantagem comparativa e a qualidade/pre�
Nova Economia. Publicado em: 2022
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6. Expression of endoglin, CD105, in conjunctival melanocytic nevi: Is it suspicious like in thyroidology? Oculi plus vident quam oculus?
SUMMARY Objective: The aim of this study was to evaluate the expression of endoglin and its correlation with histopathological and clinical findings in conjunctival nevi. Methods: The study included archival formalin-fixed, paraffin-embedded tissue sections of 44 patients with conjunctival nevi. Immunohistochemical staining for CD105 had been performed wit
Revista da Associação Médica Brasileira. Publicado em: 2022
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7. Morphological aspects and embryonic development after the dispersion of pirenes of Ilex paraguariensis A. St. Hil
ABSTRACT The objective of this work was to identify and describe the morphological aspects of the pyrene and the different stages of developing embryos of Ilex paraguariensis. The pyrenes were collected in the year 2016 and 2017, of ripe fruits. The pyrenes, a total of 400 per site and year of collection, remained for 24 h immersed in water for the section a
Revista Ceres. Publicado em: 2022
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8. Self-medication practices with conventional and herbal drugs among ear, nose, and throat patients
SUMMARY OBJECTIVE: This study evaluates the self-practices with conventional and herbal drug use among ear, nose, and throat outpatients. METHODS: A cross-sectional survey-based study was carried out among all ear, nose, and throat outpatients on their first visit to the otorhinolaryngology department at a tertiary care hospital. The survey comprised a tot
Revista da Associação Médica Brasileira. Publicado em: 2022
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9. Intraoperative assessment of surgical margins using ‟en face” frozen sections in the management of cutaneous carcinomas
Abstract Background: Basal cell and squamous cell carcinomas (BCC and SCC) are the most common types of cancer worldwide. Intraoperative assessment of surgical margins by frozen section has been widely used to ensure disease-free margins. The intraoperative ‟en face” freezing technique evaluates all peripheral and deep margins. Objective: To report the
Anais Brasileiros de Dermatologia. Publicado em: 2022
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10. Violence against health personnel before and during the COVID-19 pandemic
SUMMARY OBJECTIVE: Violence in the workplace has been an alarming phenomenon around the world. The aim of this study was to analyze the frequency of violence against health personnel in urgent and emergency departments, before and during the COVID-19 pandemic. METHODS: This is an exploratory cross-sectional study including a structured online survey with t
Revista da Associação Médica Brasileira. Publicado em: 2022
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11. Is the tumor-stroma ratio a prognostic factor in gallbladder cancer?
SUMMARY OBJECTIVE: This study aimed to examine the prognostic effect of the tumor-stroma ratio, which has been shown to have prognostic value in various cancers, in patients with gallbladder cancer who have undergone curative resection. METHODS: The records of gallbladder cancer patients who underwent surgical treatment in our clinic between December 2005
Revista da Associação Médica Brasileira. Publicado em: 2022
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12. Finite strip method computer application for buckling analysis of thin-walled structures with arbitrary cross-sections
Abstract The Direct Strength Method (DSM) is a well-known formulation presented in the Brazilian standard ABNT NBR 14762:2010, that estimates the strength capacity of cold-formed steel (CFS) members. However, this formulation requires the elastic critical buckling loads as point of departure, regarding local (L), distortional (D) and global (G) modes, which
REM, Int. Eng. J.. Publicado em: 2021-09