Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2020 ( 2 )

2019 ( 223 )

2018 ( 411 )

2017 ( 412 )

Custom range...

Search Results: 1 - 10 of 256658 matches for " José Carlos de Melo;Coury "
All listed articles are free for downloading (OA Articles)
Page 1 /256658
Display every page Item
Sistema integrado para desenvolvimento e execu??o em tempo real de algoritmos de prote??o de sistemas elétricos
Monaro, Renato Machado;Silva, Raphael Philipe Mendes da;Vieira Júnior, José Carlos de Melo;Coury, Denis Vinicius;
Sba: Controle & Automa??o Sociedade Brasileira de Automatica , 2012, DOI: 10.1590/S0103-17592012000200007
Abstract: this article presents the development of an integrated system of hardware and software, whose objective is to serve as a platform for developing and executing new power system protection algorithms on a real-time environment. the proposed system aims to reduce development time of new protection functions, enabling real-time analysis in opposition of only computer simulations, as can be typically found in technical literature. in this work, generator protection functions were implemented and tested, and the results were compared with a commercial relay, showing the feasibility and dependability of the proposed system.
Envolvimento de auto-anticorpos na fisiopatologia da Doen?a de Chagas
Medei, Emiliano Horacio;Nascimento, José Hamilton Matheus;Pedrosa, Roberto Coury;Carvalho, Ant?nio Carlos Campos de;
Arquivos Brasileiros de Cardiologia , 2008, DOI: 10.1590/S0066-782X2008001600012
Abstract: chagas' disease is a serious health problem in latin america. between 25 to 30% of the infected patients develop the chronic form of the disease, with progressive myocardial damage and often, sudden death. adrenergic or cholinergic antibodies with g-protein coupled membrane receptor activity may be present in the sera of these patients. the present study discusses the etiology and the contribution of antibodies to the physiopathology of chagas' disease.
Enhancing Nutrient Use Efficiency Using Zeolites Minerals—A Review  [PDF]
Alberto Carlos de Campos Bernardi, José Carlos Polidoro, Marisa Bezerra de Melo Monte, Elaine Inácio Pereira, Cauê Ribeiro de Oliveira, Kulasekaran Ramesh
Advances in Chemical Engineering and Science (ACES) , 2016, DOI: 10.4236/aces.2016.64030
Abstract: On tropical soils, liming and balanced nutrient supply are essential to ensure high crop yield and quality. An adequate agronomic nutrient management should be a balanced nutrition and fertilizers are the key factor on supplying nutrients. Urea is the most commonly used fertilizer-N source, despite potential losses by NH3 volatilization. Thus, new fertilizers technologies are needed to support the increasing demand and avoid the low N use efficiency (NUE). The reduction of NH3-N volatilization can be achieved by the use of natural aluminosilicates with nitrogenous fertilizer materials. This review consolidates the current status on the subject and the experience with the application of aluminosilicates as a slow release plant-nutrient fertilizer. Volatilization losses of nitrogenous fertilizers on the soil surface could be reduced with addition of natural aluminosilicates. Clay minerals (zeolites) are widely used in many countries to reduce NH3 volatilization from amide N fertilizers, such as urea, besides several organic forms of nitrogenous sources. The reduction in ammonia losses by volatilization and the increased efficiency of N utilization and slow release nature of urea-zeolite mixtures when urea is used together with aluminosilicates was demonstrated in laboratory, greenhouse and field experiments with different crops and environments. These results indicate that aluminosilicates minerals used with urea mineral fertilizer can enhance the efficiency of this source by improving the nitrogen use through the control of retention of ammonium ion, contributing to increasd N uptake and crop yields.
Asymptomatic Intrahepatic Portosystemic Venous Shunt: Case Report and Review of Literature  [PDF]
Huylmer Lucena Chaves, Mayanna Pinho Batista, Germana Bastos Pontes, Lia Pontes de Melo, José Carlos Godeiro Junior
Open Journal of Radiology (OJRad) , 2019, DOI: 10.4236/ojrad.2019.91001
Abstract: A spontaneous portosystemic shunt is a rare malformation of the liver vessels. The etiology of these shunts is controversial. They can be divided into acquired (most commonly associated with liver cirrhosis) and congenital. Vascular shunts are asymptomatic in the majority of the patients, and when symptomatic were presented by severe complications. The specific way of management can be selected depended on whether the patient was symptomatic or not, and also on the size of the shunt, shunt ratio and whether it was associated with cancer. We will present a clinical case and discuss the importance of the radiological imaging in the screening, diagnosis and follow up of these anomalies.
Estudo in vivo de um sistema de libera??o de drogas constituído por hidroxiapatita e cisplatina
Sobral, Renata Afonso;Daleck, Carlos Roberto;Melo, Wanderley José de;
Acta Cirurgica Brasileira , 2001, DOI: 10.1590/S0102-86502001000300003
Abstract: the drug release system constituted by hydroxyapatite and cisplatin was tested in rats for local and systemic drug release. the side effects to treatment were: anorexia, diarrhea, epistaxe e cutaneous necrose in the implantation bed; 45% animals of test group died by treatment intoxication. serum, renal, hepatic and muscular tissues samples were collected for cisplatin analysis of all animals that received implants, showing system's kinetics.
Estudo in vivo de um sistema de libera o de drogas constituído por hidroxiapatita e cisplatina
Sobral Renata Afonso,Daleck Carlos Roberto,Melo Wanderley José de
Acta Cirurgica Brasileira , 2001,
Abstract: Um sistema de libera o constituído por hidroxiapatita e cisplatina foi testado em ratos para avalia o da libera o local e sistêmica do antineoplásico cisplatina. Os animais que receberam os implantes com a droga desenvolveram efeitos colaterais ao tratamento, sendo os mais comuns: anorexia, diarréia, epistaxe e necrose cutanea no sítio de implanta o; cerca de 45% deste animais morreram, indicando intoxica o. Amostras de sangue e dos tecidos hepático, renal e muscular de todos os animais pertencentes ao experimento foram submetidas à detec o das concentra es de cisplatina, revelando a cinética de libera o da droga pelo sistema proposto.
Kerion Celsi por Microsporum gypseum
Melo-Monteiro Coaraci,Martins Carlos José,Monteiro Cristina de Sousa,Paiva Maria Bandeira de Melo
Anais Brasileiros de Dermatologia , 2003,
Abstract: Os autores apresentam um caso de Kerion Celsi por Microsporum gypseum em crian a do sexo masculino,de 3 anos de idade, natural e procedente do Rio de Janeiro. Revisa-se a literatura, demonstrando a importancia do caso.
Synthesis and Characterization of LaNixCo1-xO3 Perovskites via Complex Precursor Methods  [PDF]
Grace Rafaela Oliveira Silva, José Carlos Santos, Danielle M. H. Martinelli, Anne Michelle Garrido Pedrosa, Marcelo José Barros de Souza, Dulce Maria Araujo Melo
Materials Sciences and Applications (MSA) , 2010, DOI: 10.4236/msa.2010.12008
Abstract: This work presents a study on the synthesis of LaNixCo1-xO3 perovskites via complex precursor methods. Perovskite oxides with the composition LaNixCo1-xO3 were synthesized by chelating precursor and polymeric precursor methods using nickel and/or cobalt nitrates, lanthanum nitrate, ethylene glycol, citric acid, and EDTA as starting source. The obtained perovskite were characterized by thermogravimetric analysis, infrared spectroscopy, X-ray diffraction and the morphology of the samples were investigated by N2 adsorption experiments and average medium particle size. TG curves and FTIR spectra were particularly useful in establishing of the optimal calcination temperature of the precursor powders. X-ray diffraction patterns revealed the formation of the perovskite structure in all samples prepared by both synthesis method and after calcinations at 700℃. The results showed that the preparation method resulted in oxides with the intended structure. The specific surface area values were influenced by preparation method.
An Application of the Taguchi Method (Robust Design) to Environmental Engineering: Evaluating Advanced Oxidative Processes in Polyester-Resin Wastewater Treatment  [PDF]
Messias Borges Silva, Livia Melo Carneiro, João Paulo Alves Silva, Ivy dos Santos Oliveira, Hélcio José Izário Filho, Carlos Roberto de Oliveira Almeida
American Journal of Analytical Chemistry (AJAC) , 2014, DOI: 10.4236/ajac.2014.513092
Abstract: This paper presents the Taguchi Method, a statistical design modelling for experiments applied in environmental engineering. This method was applied to optimize the treatment conditions of polyester-resin effluent by means of Advanced Oxidative Processes (AOPs) using chemical oxygen demand (COD) as response parameter. The influence of each independent parameter including respective interactions was evaluated by Taguchi Method, which allowed determining the most statistically significant variables and conditions to best fit the process. Results showed that Taguchi Method is a very useful tool for environmental engineering field and possible simplifications of analysis and calculations through commercially available software.
Clinical Assessment of the Use of Propinox Hydrochloride and Scopolamine Hydrochloride in the Treatment of Abdominal Colic: A Retrospective, Comparative Study  [PDF]
Helio Rzetelna, Carlos Frederico Porto Alegre Rosa, Mario Kirzner, Lucas Pereira Jorge de Medeiros, Camila Melo, Marcia Gon?alves Ribeiro, Lisa Oliveira, José Galv?o Alves, Mauro Geller
International Journal of Clinical Medicine (IJCM) , 2016, DOI: 10.4236/ijcm.2016.77052
Abstract: Objectives: The purpose of this study was to evaluate and compare the use of propinox hydrochloride and scopolamine hydrochloride in patients presenting abdominal colic (abdominal pain), in terms of treatment efficacy and tolerability. Material & Methods: This was an analytical, retrospective, comparative study based on hospital records of outpatients treated at Serviço de Clínica Médica do Hospital das Clínicas Costantino Otaviano (HCTCO) and at Santa Casa de Misericórdia do Rio de Janeiro, from 1988-1998. Subjects were divided into two groups: patients from Group 1 were treated with propinox hydrochloride, while patients from Group 2 were treated with scopolamine hydrochloride. Statistical analysis was performed using GraphPad Prism version 5.0. For comparison of categorical variables, we used the chi-squared or Fisher’s test, while continuous variables were analyzed using ANOVA or the Student’s T test. Results: A total of 1042 subjects were included, of which 525 were allocated to Group 1 and 517 to Group 2. Mean treatment duration was 9.166 days (±4.208) in Group 1 and 8.795 days (±5.052) in Group 2, with no statistically significant difference in treatment duration between the two groups (p = 0.198). All subjects in Group 1 were treated with propinox 10 mg (2 coated tablets, three times per day) while all subjects in Group 2 were treated with scopolamine hydrochloride 10 mg (2 coated tablets, three times per day). There were no statistically significant between-group differences in weight, BMI, heart rate, and respiratory rate at pre- and post-treatment; with the exception of higher post-treatment systolic blood pressure in Group 1, blood pressure measures also remained homogenous. Adverse events were reported among both treatment groups with no significant between-group difference in incidence (p = 0566). At pretreatment, pain intensity was more severe in Group 1 (p = 0.0257), while at post-treatment, there was no statistically significant difference between the two treatment groups (p = 0.895). There was a statistically significant improvement in pain intensity within both treatment groups (χ2 = 631.4; df = 3; p < 0.0001 for Group 1 and χ2 = 554.3; df = 3; p < 0.0001 for Group 2). Conclusion: The results obtained in this study indicate a therapeutic equivalence between propinox hydrochloride and scopolamine hydrochloride. Both treatments demonstrated good efficacy and tolerability in the treatment of abdominal colic pain, in the population evaluated.
Page 1 /256658
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.