Universidade Positivo

About: Universidade Positivo is a education organization based out in Curitiba, Brazil. It is known for research contribution in the topics: Population & Biodiversity. The organization has 1290 authors who have published 1237 publications receiving 9335 citations. The organization is also known as: Positive University.

Thermoanalytical study of native Cassava starch and treated with hydrogen peroxide

Abstract: Starch is one of the most important sources of reserve of carbohydrate in plants and the main source in the human diet due to its abundance in the nature. There no other food ingredient that can be compared with starch in terms of sheer versatility of application in the food industry. Unprocessed native starches are structurally too weak and functionally too restricted for application in today’s advanced food and industrial technologies. The main objective of this study was to compare the thermal behavior of native cassava starch and those treated with hydrogen peroxide, as well as those treated with hydrogen peroxide and ferrous sulfate. The cassava starch was extracted from cassava roots (Manihot esculenta, Crantz) and treated by standardized hydrogen peroxide (H2O2) solutions at 1, 2 and 3% (with or without FeSO4). Investigated by using they are thermoanalytical techniques: thermogravimetry - TG, differential thermal analysis – DTA and differential scanning calorimetry - DSC, as well as optical microscopy and X-ray powder diffractometry. The results showed the steps of thermal decomposition, changes in temperatures and in gelatinization enthalpy and small changes in crystallinity of the granules

Clinical Characteristics of Patients With Neuromyelitis Optica Spectrum Disorders With Early Onset.

Abstract: Neuromyelitis optica spectrum disorder is a severe and disabling disease that manifests with severe relapses of optic neuritis, longitudinally extensive myelitis, and/or brainstem syndromes. The disease is complex and, although onset typically occurs in middle age, children and adolescents may be affected. The present study adds to the literature through detailed clinical data from 36 Brazilian patients with neuromyelitis optica spectrum disorder starting before age 21. This was a retrospective assessment of medical records from 14 specialized units in Brazil. The results showed that the course of neuromyelitis optica spectrum disorder was worse in patients with disease onset before the age of 12 years. Gender and ethnic background did not influence disability accumulation. Over a median period of 8 years, 14% of the patients who presented the initial symptoms of neuromyelitis optica spectrum disorder before the age of 21 years died. In conclusion, the present study adds to the reports from other authors examining the severity of early-onset neuromyelitis optica spectrum disorder.

Terminalidad y testamento vital: el conocimiento de los estudiantes de Medicina

Abstract: Resumo Visando dar mais autonomia a pacientes terminais, foi criada pelo Conselho Federal de Medicina a Resolução 1.995/2012, que dispõe sobre o testamento vital. Para avaliar o conhecimento dos estudantes de medicina do primeiro ao sexto ano em relação a conceitos e condutas éticas diante de pacientes terminais, foi realizado este estudo transversal, mediante aplicação de questionário a 348 alunos. Destes, 251 (72,1%) identificaram corretamente questões relacionadas a condutas na terminalidade, mas apenas 23,5% demonstraram conhecer o conceito de testamento vital. Apesar do baixo índice, 80,1% afirmaram ter a intenção de respeitá-lo, no caso de pacientes terminais. Pesquisas sobre o assunto são importantes para alertar sobre lacunas nos currículos desses futuros médicos. Além disso, o caráter reflexivo desse tipo de estudo permite trabalhar questões éticas fundamentais para o atendimento humanizado.

Comparative behavior studies of cinnamic acid using isothermal and nonisothermal kinetic methods

Abstract: In this work, a thermal behavior study of cinnamic acid was made using isothermal and nonisothermal kinetics methods. Thermogravimetric curves were obtained to determine the kinetic parameters of its decomposition process. Cinnamic acid was melted at T Peak = 135.5°C and the decomposition started at 160°C. The obtained activation energy was 71.13 kJ/mol and 65.77 kJ/mol for isothermal and nonisothermal methods, respectively. The decomposition kinetics for both methods occurs at a constant rate, is of zero order, and is independent of the concentration of the reactants.

Avaliação da adesão de médicos ao protocolo de hipertensão arterial da secretaria municipal de saúde de Curitiba

Abstract: FUNDAMENTO: Em Curitiba, a hipertensao arterial sistemica (HAS) e a segunda causa de internamento hospitalar e a primeira causa de morte por doencas cardiovasculares. Os protocolos de atendimento aos hipertensos sistematizam a atencao ao paciente com o intuito de aprimorar a resolutividade e a qualidade dos servicos de saude. OBJETIVO: Avaliar a adesao dos profissionais medicos ao protocolo do programa de hipertensos da Secretaria Municipal de Saude (SMS) de Curitiba. METODOS: Este e um estudo transversal e observacional. A coleta de dados referentes ao trabalho foi realizada em quatro unidades de saude de Curitiba. A amostra foi constituida de 200 pacientes hipertensos cadastrados no programa de HAS. Os dados coletados eram referentes as duas primeiras consultas. A fonte de dados foi o prontuario eletronico das unidades de saude. O protocolo utilizado para analise comparativa foi o da SMS de Curitiba. RESULTADOS: A nao conformidade entre a pratica clinica e o protocolo na primeira consulta foi de 56,8% quanto a classificacao de grau, 63,8% quanto ao risco cardiovascular e de 54% quanto ao tratamento. Na segunda consulta, em 67% nao houve concordância com o protocolo quanto ao risco e em 51,3% quanto ao tratamento. CONCLUSAO: A nao conformidade entre a pratica clinica e a adesao ao protocolo da SMS de Curitiba mostrou-se evidente na classificacao de grau, risco cardiovascular e tratamento do paciente hipertenso. O nao seguimento do protocolo pode representar uma baixa resolutividade do servico de saude, o qual perde a oportunidade de reduzir a morbidade e mortalidade por doencas cardiovasculares na populacao.