Search results for "Brazil"
showing 10 items of 240 documents
Racial disparity and prognosis in patients with mouth and oropharynx cancer in Brazil.
2022
Oral and oropharyngeal cancer (OPC) is an important cause of morbidity and mortality worldwide. Populations in situations of social vulnerability tend to have higher incidences of cancer, a higher proportion of late diagnosis, greater difficulties in accessing health services, and, consequently, worse prognosis. The aim of this study was to evaluate the relationship between race/skin color and OPC prognosis in Brazil. This is a cross-sectional epidemiological study using OPC data from the National Cancer Institute between the years 2000 and 2019. The selected variables were: gender, race/skin color, age, education, smoking and alcohol consumption, stage of the disease and disease status at …
Transition from glass to digital slide microscopy in the teaching of oral pathology in a Brazilian dental school
2014
Objectives: Several medical and dental schools have described their experience in the transition from conventional to digital microscopy in the teaching of general pathology and histology disciplines; however, this transitional process has scarcely been reported in the teaching of oral pathology. Therefore, the objective of the current study is to report the transition from conventional glass slide to virtual microscopy in oral pathology teaching, a unique experience in Latin America. Study Design: An Aperio ScanScope® scanner was used to digitalize histological slides used in practical lectures of oral pathology. The challenges and benefits observed by the group of Professors from the Pira…
Un análisis bibliométrico en el área de la Medicina: colaboración científica entre Brasil y España (2002-2011)
2016
RESUMENEsta investigación tiene por objetivo analizar la evolución temporal de la producción científica en colaboración entre Brasil y España en el área de la Medicina, en el periodo 2002-2011, además de identificar las instituciones y países más productivos y representar y analizar las redes de colaboración institucional entre los países colaboradores. Como fuente de información se utilizó Scopus, por considerarla como la principal base de datos multidisciplinar y con mayor cobertura geográfica. Los documentos analizados se han limitado a los artículos originales. Se recuperaron 1 121 artículos científicos, con un total de 13 906 firmas. Se calculó, para cada año, la tasa de crecimiento an…
Contrasting stress fields on correlating margins of the South Atlantic
2015
Made available in DSpace on 2018-12-11T17:25:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01 The passiveness of passive continental margins across the globe is currently under debate since several studies have shown that these margins may experience a variety of stress states and undergo significant vertical movement post-breakup. Of special interest is the South Atlantic, because the bounding continents have very different recent geological histories, with Africa experiencing continental rifting whereas South America is influenced by subduction on the Pacific side. It is not clear to what extent the Atlantic continental margins are subject to the same stresses and vertical …
O Brasil na rota das migrações internacionais qualificadas espanholas no século XXI
2018
In order to understand recent migration, it is crucial to analyze the migratory modalities such as skilled international migration to Brazil, especially considering the ongoing transnational economic processes and their effects on the corresponding societies. Therefore, this article seeks to understand how the migratory dynamics of highly skilled Spanish professionals to the country are established taking into account the theoretical contribution of the circulation of brains and the category of knowledge workers. For this purpose, information from Brazilian?s Ministry of Labor is used on labor authorizations, financial contributions and insertion in the formal market in Spain; as well as da…
Inhibition of Saccharomyces cerevisiae Pdr5p by a natural compound extracted from Brazilian Red Propolis
2011
Multidrug resistance of cancer cells and pathogenic microorganisms leading to the treatment failure of some forms of cancer or life-threatening bacterial or fungal infections is often caused by the overexpression of multidrug efflux pumps belonging to the ATP-binding cassette transporters superfamily. The multidrug resistance of fungal cells often involves the overexpression of efflux pumps belonging to the pleiotropic drug resistance (PDR) family of ABC transporters. Possibly the best-studied fungal PDR transporter is the multidrug resistance transporter Pdr5p of Saccharomyces cerevisiae. Some research groups have been searching for new inhibitors of these efflux pumps in order to alleviat…
Clinical manifestations of head and neck cancer in pediatric patients, an analysis of 253 cases in a single Brazilian center
2021
Pediatric head and neck cancer (PHNC) is rare and its nonspecific clinical manifestations may often lead to delayed diagnosis. We aimed to describe the signs, symptoms, and clinicopathological characteristics of PHNC. Medical records were retrospectively reviewed for all PHNC cases diagnosed from 1986 to 2016 affecting patients aged 19-years and younger from a tertiary referral center in Brazil. Demographic variables, anatomical site of primary tumors, histopathological diagnoses, signs and symptoms, and patterns of misdiagnosis were collected and interpreted by statistical and descriptive analysis. A total of 253 PHNC cases were included. The mean age was 9.3 years and male patients were m…
Der Zerfall des Schriftdeutschen im Estado Novo?
2017
Zusammenfassung Der folgende Beitrag beschäftigt sich mit Sprechern des Hunsrückischen in Brasilien und deren Gebrauch des Schriftdeutschen im 20. Jahrhundert. Basis der Analyse ist ein Korpus von Privatbriefen, die während der ersten Diktatur geschrieben wurden. Der Fokus der Analyse ist die Frage nach einer uniformen Schriftnorm für diese Sprechergruppe, deren Muttersprache fast ausschließlich mündlich verwendet wurde. Es wird argumentiert, dass der Estado Novo nicht die einzige Ursache für den Dachsprachenwechsel vom Deutschen zum Portugiesischen war, jedoch entscheidend dazu beigetragen hat, dass die Etablierung einer brasilianischen Schriftnorm des Deutschen endgültig verhindert wurde.…
Anti-inflammatory activity of flavonoids from Cayaponia tayuya roots.
2008
Taiuiá or tayuya (Cayaponia tayuya, Cucurbitaceae) is a climbing, lignified plant with a large swollen root that has traditionally been used as an anti-inflammatory and anti-rheumatic agent in the folk medicine of Brazil, Peru, and Colombia.We have assayed the pharmacological properties of a flavonoid fraction obtained from the butanol extract of Cayaponia tayuya roots using two models of topical mouse ear oedema, paying special attention to its influence on the induction on pro-inflammatory enzymes and peptidic mediators.The in vivo experiments involved both the acute oedema induced by a single application of TPA and the subchronic inflammation brought on by repeated applications of TPA. T…
Prevalence of ulcerative stomatitis in arbovirus infections in a Brazilian Northeast population
2020
Background Although there are no population-based studies that support an association, there are reports in the literature of mucocutaneous, vesiculobullous and ulcerated lesions in the oral mucosa in cases of arbovirus infection. The aim of this study is to analyze the prevalence of ulcerative stomatitis in individuals affected by arboviruses in a population of the municipality of Arcoverde, Pernambuco, Brazil. Material and Methods 1,003 people living in an area assigned to a Primary Health Care Unit were interviewed. A structured questionnaire was used for data collection, with questions about sociodemographic variables, residence conditions, general health information, as well as informa…