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Search Results: 1 - 10 of 69563 matches for " Eduardo Souza Santos "
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Metal Transport Parameters in Residual Soil with an Undisturbed and Remolded Structure Percolated by an Acid Solution  [PDF]
Eduardo Pavan Korf, Antonio Thomé, Nilo Cesar Consoli, Rafael de Souza Tímbola, Gláucia Carine dos Santos
Journal of Environmental Protection (JEP) , 2011, DOI: 10.4236/jep.2011.28124
Abstract: There is no enough information about metal transport parameters in residual soil. These soils are generally structured and still there is no answer to what happens with the contaminant transport parameters when an acid solution with metal percolates this material with different structure. The objective of this study was to determine the contaminant transport parameters for Cd, Ni, Cu and Zn metals in an acid multispecies solution to a residual soil from south Brazil with an undisturbed and remolded structure. Column tests were carried out to determine the kd, Rd, Dh transport parameters. It was possible conclude that the magnitude of the kd, Rd and Dh parameter did not vary significantly with the soil structure.
The Assessment of the Arising of Food Allergy among Antiacid Users Using Mathematical Model  [PDF]
Hyun Mo Yang, Ariana Campos Yang, Keity Souza Santos, Clovis Eduardo Galv?o, Fabio Fernandes Morato Castro
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.33045
Abstract: The first case of a new food allergy, an anaphylactic reaction to Manioc (Manihot esculenta or Manihot utilissima), also called cassava and tapioca, was described in 2001. Cassava is a tuber widely consumed in Brazil, which has been consumed by native Indians, i.e., more than 500 years ago, so why are the first cases just emerging now? We address this question by developing a mathematical model considering the fact that proton pump inhibitors (PPIs) for digestive disorders maintain the cassava allergen intact due to the elevation in pH of gastric juice, thereby facilitating its presentation to the immune system. The model assumed the mass action law including saturation to describe the recruitment of PPIs users, and Hill function to describe the sensitization of immune system by the allergens and the acquisition of full food allergy. Analytical results were obtained from the model, and numerical simulations were done. The estimated period of time elapsed since the introduction of antiacids before the diagnosis of food allergy was 15 years. The food allergy may become a public health problem, if PPIs are being used indiscriminately and irregularly. The results obtained from the analysis of the model suggest that the use of nonprescription antiacids, like PPIs, may be recommended or approved by the physician in order to avoid the rising of food allergy.
Landscape Structural Indicators as a Tool to Assess Land Use Changes in Planning for Sub-Basin Sustainability (Southeastern Brazil)  [PDF]
Angela Terumi Fushita, José Eduardo dos Santos, Imyra Maíra Martins de Souza, Eduarda Romanini, R?mulo Theodoro Costa
Journal of Water Resource and Protection (JWARP) , 2016, DOI: 10.4236/jwarp.2016.84041
Abstract: Land use is shaped by the interactions between nature and society, and these interactions can inhibit environmental sustainability and deplete the natural capital that provides the ecosystem services upon which humans depend. Urbanity Index and Landscape Vulnerability Indicator have been proposed to improve the impact interpretability of land use changes on sub-basin sustainability for local scenarios of biodiversity conservation. A time series of LandSat 5 Thematic Mapper remote sensing data from São Carlos municipality, Southeastern Brazil, for the years 1989, 2004 and 2014 revealed that land use changes in the sub-basins do not take place in a progressive and gradual way. Over the 25-year period, the main trends showed the loss and increase of forest cover so that it has remained quantitatively similar over time due to reduced agricultural land use. The aggregation of both indicators enabled the identification of greater naturalness and lower vulnerability, as well as lower naturalness and higher vulnerability under local sub-basin conditions, pointing the need for different strategies for sub-basin biodiversity conservation and sustainability. These preliminary scenarios provide a way to communicate problems of environmental sustainability at different landscape scales to the scientific community as well as to planners, policy makers and the broader public.
How Much Do Adjuvant and Nozzles Models Reduce the Spraying Drift? Drift in Agricultural Spraying  [PDF]
Fabiano Griesang, Ricardo Augusto Decaro, Cícero Ant?nio Mariano dos Santos, Eduardo Souza Santos, Nelson Henrique de Lima Roque, Marcelo da Costa Ferreira
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.811188
Abstract: The spraying of herbicides in crops has become the main form of weed control. Although it means unexpected effects on non-target plants resulted by spraying drift. Thus, improvements in application techniques, as the best selection of spray nozzles and adjuvant, are essential to avoid environmental contamination and economic losses. On this work, we evaluate how much adjuvant associated with nozzles can reduce the spray drift. The nozzles used at experiment were air induction flat tip, hollow cone and twinjet and the spray liquids, which were composed of herbicide glyphosate and phosphatidylcholine + propionic acid adjuvant. Measurements were made at wind tunnel and droplet sizer, at laser diffraction method. The models of nozzles influence in droplet size characteristics and in occurrence of spray drift. The use of adjuvants reduces the spray drift only combined with the twinjet nozzle, while for the other models the adjuvant did not reduce the global spray drift at significant levels. The adjuvant reduced the spray drift until 39%, while the nozzles model reduced until 74%. Both techniques when combined were able to reduce until 80%. The model of nozzle has the biggest result on drift mitigation and the use of adjuvants can increase the drift mitigation specially with nozzles that produces smallest droplets.
Determina??o de perigos e pontos críticos de controle para implanta??o de sistema de análise de perigos e pontos críticos de controle em lactário
SANTOS, Míriam Isabel Souza;TONDO, Eduardo César;
Revista de Nutri??o , 2000, DOI: 10.1590/S1415-52732000000300008
Abstract: lactaries are hospital facilities where feeding bottles and their substitutes are prepared and distributed for newborn intant and other pediatric patients. the preparation of such kind of food must be very carefully followed since it is destined to patients who are very susceptible to foodborne diseases. the present work aimed at investigating the microbiological quality and procedures for the preparation of feeding bottles in the lactary of the general clinics hospital of porto alegre, rs to implement hazard analysis and critical control point system. during a six month period, 75 samples of feeding bottle formulations and 18 samples of raw materials were analyzed for the quantity of total mesophiles total and fecal coliforms, staphylococcus aureus, staphylococcus epidermidis, bacillus cereus, streptococcus spp., clostridium perfringens, molds and yeasts, and the presence of salmonella sp. the temperature and the time for each step of the preparations were also evaluated. the microbiological analysis showed that 77,3% of the samples were not in satisfactory microbiological conditions compared to parameters established by experimental dietary division of general clinics hospital of university of s?o paulo. however, pathogens were not found in any of the analyzed samples. the evaluation of time and temperatures indicated the necessity of improvements of cooling, cold conservation and reheating. such steps as well as the reception of raw material and water and milk boiling and cooking were also considered critical control points. based on such results, good manufacturing practices improvements were established and complete implementation of hazard analysis and critical control point system was performed.
Determina o de perigos e pontos críticos de controle para implanta o de sistema de análise de perigos e pontos críticos de controle em lactário
SANTOS Míriam Isabel Souza,TONDO Eduardo César
Revista de Nutri??o , 2000,
Abstract: Lactários s o unidades hospitalares destinadas ao preparo, higieniza o e distribui o de mamadeiras e seus substitutos destinados a recém-nascidos e demais pacientes da pediatria. O cuidado durante o preparo deste tipo de alimenta o deve ser bastante rigoroso, pois a popula o-alvo, além de apresentar maior suscetibilidade a enfermidades transmitidas por alimentos, pode estar imunologicamente debilitada. O objetivo desse trabalho foi investigar a qualidade microbiológica e os procedimentos de prepara o das mamadeiras formuladas no lactário do Hospital de Clínicas de Porto Alegre e, a partir destas análises, elaborar fluxogramas e identificar perigos e pontos críticos de controle para implanta o do sistema de Análise de Perigos e Pontos Críticos de Controle neste setor. Em um período de 6 meses, foram analisadas 75 formula es e 18 matérias-primas quanto à quantidade de mesófilos totais, coliformes totais, coliformes fecais, Staphylococcus aureus, Staphylococcus epidermidis, Bacillus cereus, Streptococcus sp., Clostridium sulfito redutores, bolores e leveduras e presen a de Salmonella sp. As temperaturas, assim como o tempo de cada etapa das prepara es também foram avaliadas. As análises microbiológicas demonstraram que 77,3% das amostras estavam com qualidade microbiológica insatisfatória segundo os padr es estipulados pela Se o de Dietética Experimental do Hospital das Clínicas de S o Paulo. No entanto, nenhuma delas apresentou contamina o por microorganismos patogênicos. As medi es de tempo e temperatura demonstraram necessidades de melhorias nas etapas de resfriamento, conserva o fria e reaquecimento, enquanto a análise do fluxograma sugeriu como pontos críticos de controle, além dessas etapas citadas, a recep o e estocagem da matéria-prima, a fervura e a coc o. Com base nestes dados, foram implementadas melhorias em boas práticas de fabrica o e a implanta o completa do sistema de Análise de Perigos e Pontos Críticos de Controle.
Agriculture and Forest Transition: Understanding of Land Use Change in a Cultural Landscape  [PDF]
José Eduardo dos Santos, Angela Terumi Fushita, Imyra Maíra Martins de Souza, Lia Martucci Amorim, Valéria Aparecida David Andrade
Open Journal of Applied Sciences (OJAppS) , 2015, DOI: 10.4236/ojapps.2015.512076
Abstract: Land use trajectory analysis provides both the time and kind of land cover changes to monitor land use dynamics. Land cover change trajectories for three different dates (1965, 1989 and 2014) extracted from satellite images by vectorization of the thematic information were studied This study was carried out on a cultural landscape (S?o Carlos municipality, SP, Brazil) with three major land use-cover classes (forest, agriculture and other uses). The results showed the spatio temporal variability of landscape pattern and forest and agriculture change trajectories. Analysis based on these landscape trajectories demonstrates that agriculture and forest cover changes have been caused by human activities. The results reflect the conflicting interactions between environmental and human systems in the study area. A key question is that the pressure exerted on forest land use-cover depends on the incentives that move society from a conflicting relation with a municipal territory. A more sustainable landscape transition and trajectory for S?o Carlos municipality are extremely dependent on the regulatory role of the government through strategies related to the implementation of specific categories of legally protected areas (Legal Reserves and Areas of Permanent Preservation).
Implica??es farmacogenéticas de polimorfismos da eNOS para drogas de a??o cardiovascular
Silva, Pamela Souza;Lacchini, Riccardo;Gomes, Valéria de Aguiar;Tanus-Santos, José Eduardo;
Arquivos Brasileiros de Cardiologia , 2011, DOI: 10.1590/S0066-782X2011000200017
Abstract: the pharmacogenetics is one of the most promising fields of medicine. the conclusion of the genome project allowed this field to start discovering complex factors modulating the response to drugs, and new technologies are close a great expansion of the area. the cardiovascular diseases are currently among the major causes of hospitalizations and death, and have been the target of a large part of genetic studies of complex diseases. parallel to the susceptibility to disease markers identification, it is necessary to investigate how different genetic profiles can change the responses to the currently used drugs. the biological system that controls the endothelial production of the nitric oxide has been one of the greatest targets in the pharmacological responses to the drugs used in the cardiovascular diseases therapy. this review aims at approaching the current knowledge on interaction among the genetic variations of enos and the pharmacological responses to the drugs used in the cardiovascular system.
Monitoriza??o intraoperatória com ecocardiografia transesofágica em cirurgia cardíaca
Júnior, Carlos Galhardo;Botelho, Eduardo Souza Leal;Diego, Luis Antonio dos Santos;
Revista Brasileira de Anestesiologia , 2011, DOI: 10.1590/S0034-70942011000400012
Abstract: background and objective: since its clinical introduction in the 80s, intraoperative transesophageal echocardiography (tee) has represented one of the greatest advances in modern cardiac anesthesia. it is a semi-invasive technique that allows direct and fast visualization of structural anatomy of the heart and great vessels as well as contributes to hemodynamic and functional evaluation of the cardiovascular system. thus, it has become an important monitor in aiding the diagnosis of cardiac pathologies and anesthesia and surgical interventions. the objective of this report was to perform a comprehensive review on the use of intraoperative tee in cardiac surgery. contents: this article reviews some aspects of ultrasound physics, imaging techniques, echocardiographic cuts used more oftenly, indications, and main clinical applications in addition to contraindications and complications. conclusions: intraoperative tee is a safe method of cardiovascular monitoring, which is useful in the formulation of a surgical strategy, orientation of hemodynamic interventions, and immediate assessment of surgical outcomes. once qualified to use the method, the anesthesiologist expands its role in perioperative medicine, providing clinical information necessary to the anesthetic-surgical procedure in cardiac surgery.
Manifesta??es clínicas e laboratoriais de polimiosite em um caso de leptospirose
Müller, Carolina de Souza;Rachid Filho, Acir;Titton, David Cezar;Paiva, Eduardo Santos;
Revista Brasileira de Reumatologia , 2006, DOI: 10.1590/S0482-50042006000600012
Abstract: sometimes, it is not possible to establish an obvious distinction between the muscular manifestations due to infectious diseases and the idiopathic myositis. in fact, in some situations it is believed there is a causal relationship between those diseases. we describe the case of a patient with clinical and laboratorial features of polymyositis who had developed leptospirosis previously. the hypothesis of the infectious agent acting as a "trigger" to the muscular disease is discussed.
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