Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

3 ( 1 )

2019 ( 187 )

2018 ( 364 )

2017 ( 401 )

Custom range...

Search Results: 1 - 10 of 206464 matches for " Antonio Clarindo Barbosa de Souza "
All listed articles are free for downloading (OA Articles)
Page 1 /206464
Display every page Item
A Contribui o de Carlo Ginzburg para a Nova História Cultural
Antonio Clarindo Barbosa de Souza
S?culum : Revista de História , 1998,
Abstract: O artigo discute o conceito de História Cultural enfatizando a contribui o de Carlo Ginzburg e do seu enfoque historiográfico assentado na micro-história.
Numerical Simulation of the Shell-and-Tube Heat Exchanger: Influence of the Lower Flows and the Baffles on a Fluid Dynamics  [PDF]
Sebasti?o José dos Santos Filho, Josedite Saraiva de Souza, Antonio Gilson Barbosa de Lima
Advances in Chemical Engineering and Science (ACES) , 2017, DOI: 10.4236/aces.2017.74026
Abstract: This project proposes the numerical reproduction development of the water flow in a shell-and-tube heat exchanger 2:1 according to the CLASS C TEMA standard (for moderate operation conditions, with commercial application). With baffles in aluminum and copper tube for the cold fluid flow, the shell is in acrylic, and with thermal analysis efficiencies with regard to the presence or not of the baffles, that is to analyze the efficiency with only, the tubes and the shell and soon after the analysis with tubes and baffles. Heat exchangers are widely used equipment on an industrial and commercial scale, the application of these equipments on an industrial scale represents innovative processing solutions reflecting the processes efficiency, producing significant savings and lower cost, supporting the business success, and consequently offering opportunities, social responsibility, which are the pillars of sustainability. For the development of this work the methodology was used to calculate effectiveness, following the design parameters and contour conditions, it was analyzed the fluids behavior in the shell and the tube, through computational fluid dynamics (CFD) using the software ANSYS CFX 15.0. The results were compared with Excel generated worksheets calculated using the existing equations and correlations.
Numerical Study of Oil/Water Separation by Ceramic Membranes in the Presence of Turbulent Flow  [PDF]
Josedite Saraiva de Souza, Tássia Mota Vieira, Enivaldo Santos Barbosa, Acto de Lima Cunha, Antonio Gilson Barbosa de Lima, Severino Rodrigues de Farias Neto
Advances in Chemical Engineering and Science (ACES) , 2012, DOI: 10.4236/aces.2012.22030
Abstract: Disposal of produced water during petroleum extraction causes serious environmental damage, hence the need to complete the water treatment before being disposed to environment within the criteria set established by environmental agencies in the countries. Ceramics membranes have been highlighted as a good device for separating oil/water. These act as a barrier to oil in the aqueous stream, because their essential properties for filtration, such as chemical inertness, biological stability and resistance to high temperatures. The limitation of the separation process is the decay of permeate flux during operation, due to concentration polarization and fouling. In this sense, this paper aims to evaluate numerically the feasibility of the process of separating oil/water by means of ceramic membranes in the presence of a turbulent flow induced by a tangential inlet. The results of the velocity, pressure and volumetric fraction distributions for the simulations different by varying the mass flow rate inlet and different geometric characteristics of the membrane are presented and analyzed.
Pun o estromal anterior na descompensa o corneana secundária à iridosquise: relato de caso e revis o da literatura
Fontes Bruno Machado,Alvarenga Lênio Souza,Vieira Luís Antonio,Souza Luciene Barbosa de
Arquivos Brasileiros de Oftalmologia , 2003,
Abstract: Descrevemos o tratamento da descompensa o localizada do endotélio corneano secundária à iridosquise primária utilizando a pun o estromal anterior em uma paciente de 81 anos. O exame ocular revelou iridosquise inferior no olho direito, com edema corneano localizado no local de contato entra as fibras irianas e o endotélio corneano. Foi realizada a fotocoagula o com laser de arg nio das fibras irianas em contato com o endotélio, sem melhora do quadro clínico. Optou-se por realizar a pun o estromal anterior, com resolu o total da sintomatologia. Assim, sugerimos que a pun o estromal anterior deve ser considerada uma op o terapêutica no controle da sintomatologia da descompensa o corneana localizada secundária à iridosquise. Foi feita uma revis o da literatura sobre tratamentos paliativos para descompensa o endotelial.
Estudo anat?mico dos ganglios celíaco, celiacomesentérico e mesentérico cranial e de suas conex?es no gato doméstico (Felix domestica, Linnaeus, 1758)
RIBEIRO, Antonio Augusto Coppi Maciel;SOUZA, Romeu Rodrigues de;BARBOSA, José;FERNANDES FILHO, Antonio;
Brazilian Journal of Veterinary Research and Animal Science , 2000, DOI: 10.1590/S1413-95962000000400001
Abstract: the celiac ganglion plays a major role in the innervation of the stomach, intestines, liver and pancreas and also contributes to the innervation of the spleen and is therefore essential for the control of gastrointestinal motility. clinicians and surgeons should be familiar with the nervous supply to these organs, specially in regard to digestive atonies, hemorrhagic gastroenteritis, gastric torsion and intestinal invaginations. we studied the gross and microscopic anatomy of the celiac, celiacmesenteric and cranial mesenteric ganglia. we carried out 30 adults domestic cats, 10 males and 20 females. red neoprene latex was injected into the thoracic aorta. following this procedure, the animals were frozen for at least 48 hours. after unfreezing, fixation was concluded in 10% aqueous formaldehyde solution. light microscopic studies were conducted using hematoxylin-eosin, masson?s stain, the reticulin method and acid hematoxylin fosfotungstic. located in periarterial position we observed 7 celiac ganglions, 4 to the right and 3 to the left. most of them (23.3%) were elliptic. we also observed 24 celiac mesenteric ganglions. in two cases, the celiac mesenteric ganglion was composed of two portions: a right and a left portion, which join caudally to the cranial mesenteric artery. in 11 samples we noticed a right celiac mesenteric ganglion with a left cranial mesenteric portion surrounded the left face of the cranial mesenteric artery, thus contributing to its asymmetric semilunar form. these findings suggest that the fusion of the celiac and the mesenteric ganglions prevails. the result of this fusion is the celiac mesenteric ganglion that was formed of the neurons immersed in an abundant connective tissue matrix and are involved by a capsule which contains elastic, collagens and reticular fibers and continues at the ganglion?s fusion sites.
Propaga??o vegetativa por miniestacas de preciosa (Aniba canellila (H. B.K) MEZ)
Sampaio, Paulo de Tarso Barbosa;Siqueira, Jhansem Antonio Silva de;Costa, Suely;Bruno, Flavio Mauro Souza;
Acta Amazonica , 2010, DOI: 10.1590/S0044-59672010000400007
Abstract: this study aimed to the rooting of minicuttings of juvenile material of preciosa (aniba canelilla (h.b.k) mez), through the use of concentrations of 0, 300 ppm, 600 ppm, 1200 ppm and 2000 ppm of acid indole-3-butirico (iba) in liquid form. the cuttings were obtained from seedlings of natural regeneration with approximately one years of age and shaped with 5 cm long and 0.4 - 0.6 mm in diameter. the experiment was conducted in a greenhouse, with intermittent mist system governed by 20 seconds to mist at intervals of 20 minutes. as substrate was used sand washed. weekly applications were made from fertilizer and foliar fungicide. the design used was completely randomized with five treatments and twenty-five repetitions, totaling 125 minicuttings. after 180 days after planting, the minicuttings were taken from the substrate and evaluated the following parameters: percentage of rooting, percentage of survival, percentage of calluses, dry weight of the sprouts, number, size and dry weight of roots. the results indicate that the rooting of minicuttings of juvenile material of preciosa independent of the use of the iba. however, the use of auxin in the concentration of 2000 ppm stimulated rooting (79.04%), survival (89.43%) and sprouted (64%) of minicuttings.
Aumento no material fibrinoide perivilositário nas placentas de gesta??es com pré-eclampsia
Souza, Diego Agra de;Bezerra, Antonio Fernando de Sousa;Wanderley, David Campos;Souto, Claudia Maria Barbosa;
Jornal Brasileiro de Patologia e Medicina Laboratorial , 2011, DOI: 10.1590/S1676-24442011000100010
Abstract: introduction: preeclampsia is responsible for high maternal mortality in brazil and worldwide. its etiology has not been fully elucidated. placental changes in preeclampsia include: infarcts, increase in syncytial knots, villous hypotrophy, thickening of trophoblastic basement membrane and fibrin deposition. objective: to analyze quantitatively images of perivillous fibrinoid material present in placentas from pregnancies with and without preeclampsia. material and methods: a case-control study was carried out at the anatomical pathological service of professor alberto antunes university hospital. it was performed the histomorphometric analysis of 840 images comprising 14 placenta samples from pregnancies with preeclampsia (cases) and 14 placenta samples from pregnancies without preeclampsia (controls). results: in the preeclampsia group the mean area of fibrinoid material was 168.46 pixels and in the group without preeclampsia it was 89.63 pixels. the nuclei total area was smaller in preeclampsia (89.51 pixels) in comparison with the control group (113.34 pixels). conclusion: in placentas from preeclampsia pregnancies the fibrinoid material area is larger (1.8x) compared to normal pregnancies. nuclei and cytoplasm areas were larger in the control group. there was no statistical difference regarding the stromal area. there was also a reduction in villous space in preeclampsia, which is consistent with villous hypotrophy.
Efeito do controle químico da mosca-branca na incidência do vírus-do-mosaico-dourado e na produtividade do feijoeiro
Barbosa Flávia Rabelo,Siqueira Katia Maria Medeiros de,Souza Eduardo Alves de,Moreira Wellington Antonio
Pesquisa Agropecuária Brasileira , 2002,
Abstract: O objetivo deste trabalho foi avaliar o efeito de inseticidas no controle da mosca-branca (Bemisia argentifolii Bellows & Perring, 1994) na incidência do vírus-do-mosaico-dourado e na produtividade do feijoeiro. Utilizou-se de tratamento de sementes com imidacloprid ou thiamethoxam, e de pulveriza es de inseticidas, em intervalos semanais. O experimento foi realizado no campo, em área irrigada, em Petrolina, PE, em blocos ao acaso, com cinco tratamentos e quatro repeti es. Houve redu o significativa no número médio de ovos, de ninfas e de adultos da mosca-branca e na porcentagem de infec o pelo vírus-do-mosaico-dourado do feijoeiro. A produtividade nas parcelas tratadas variou de 1.930 a 2.405 kg/ha, enquanto na testemunha foi de 1.490 kg/ha. N o foi observada diferen a significativa entre os tratamentos, no número de vagens/planta e peso de 100 sementes.
Antonio Jorge de Souza Marques,Josete Barbosa Miranda,Laura Monteiro de Castro Moreira,Rubensmidt Ramos Riani
Revista PRETEXTO , 2012,
Abstract: Os programas de educa o permanente s o fundamentais na organiza o da aten o à saúde uma vez que permitem a forma o e suporte necessário para a atua o da equipe técnica. A melhoria dos servi os de saúde exige a capacita o desses profissionais e o desenvolvimento de ferramentas necessárias para este objetivo. Neste contexto, a Educa o à Distancia (EAD) é uma alternativa conciliadora capaz de permitir o acesso à educa o em diferentes níveis e a forma o permanente da equipe. Implantado pela Secretaria de Estado de Saúde de Minas Gerais (SES-MG), o Programa de Educa o Permanente à Distancia (PEDP) - destinado aos profissionais de saúde do SUS/MG - através do Canal Minas Saúde, possibilita a estratégia de uniformizar a informa o destinada às equipes de saúde. A partir de temas definidos, s o oferecidos programas de TV por meio do Canal Minas Saúde, especialmente elaborados para gestores e profissionais da aten o primária. A experiência de uma capacita o por meio de cinco programas sobre a Linha-guia de Aten o à Saúde da Crian a foi avaliada por seus participantes através da aplica o de um questionário, atendendo majoritariamente suas expectativas e necessidades. Destacam-se a capacidade e importancia do Ensino à Distancia de possibilitar um maior alcance da informa o, expandindo o conhecimento científico e fomentando a forma o do profissional de saúde, contribuindo para a melhoria da rede de servi os e, em especial, a aten o primária.
Pun??o estromal anterior na descompensa??o corneana secundária à iridosquise: relato de caso e revis?o da literatura
Fontes, Bruno Machado;Alvarenga, Lênio Souza;Vieira, Luís Antonio;Souza, Luciene Barbosa de;Freitas, Denise de;
Arquivos Brasileiros de Oftalmologia , 2003, DOI: 10.1590/S0004-27492003000500023
Abstract: to describe the treatment of localized bullous keratopathy secondary to iridoschisis with anterior stromal puncture in a 81-year-old female with iridoschisis and localized corneal edema, in whom anterior stromal puncture was performed. ocular examination showed inferior iridoschisis in the right eye, with localized edema in the area of contact between the fibers and the endothelium. photocoagulation of the fibers was performed but no biomicroscopic changes were observed. anterior stromal puncture was performed and a complete resolution of symptoms was observed. we suggest that anterior stromal puncture should be considered as an option to reduce the symptoms of patients with localized corneal edema secondary to iridoschisis. review of the literature about palliative treatments for bullous keratopathy was also performed.
Page 1 /206464
Display every page Item

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