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Search Results: 1 - 10 of 185131 matches for " Wilson Cabral de Sousa Junior "
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Air Quality Monitoring and Its Implication on the Environmental Licensing Process in Brazil  [PDF]
José Carlos de Moura Xavier, Wilson Cabral de Sousa Junior
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.51001
Abstract:

In the state of Sao Paulo, Brazil, public policies regarding the air quality aimed at the welfare of the population are strongly dependent on monitoring conducted by the Sao Paulo State Environmental Company (CETESB), which can be influenced by faulty monitors and equipment support and cuts in power supply, among others. A research conducted from 1998 to 2008 indicated that a significant portion of the air quality automatic stations in the state of Sao Paulo did not meet the criterion of representativeness of measurements of PM10, NO2, O3, CO and SO2 concentrations which resulted in the classification of some municipalities as the nonattainment area, a situation evidenced for PM10 and O3 parameters. The network unavailability for each parameter was estimated and compared with the monitoring networks operated in Canada and the UK. This paper discusses the implications of the lack of representativeness of measurements in the environmental licensing process of pollution sources from 2008, when by the effect of state law, municipalities have been qualified according to their air quality nonattainment level.

Custos do transporte de carga no Brasil: rodoviário versus ferroviário
Rogéria de Arantes Gomes Eller,Wilson Cabral de Sousa Junior,Marcos Lopes Can?ado Curi
Revista de Literatura dos Transportes , 2011,
Abstract:
Costs of freight transportation in Brazil: highway versus rail [paper in Portuguese]
Rogéria de Arantes Gomes Eller,Wilson Cabral de Sousa Junior,Marcos Lopes Can?ado Curi
Journal of Transport Literature , 2011,
Abstract: This study compares the costs of implementation, operation and maintenance of roadway and rail in freight transportation in Brazil considering the cost of each ton-km transported. It was also estimated the costs of environmental impacts generated by the implementation and operation of each mode. The results show that the railroad has high fixed costs, due to large investments in tracks, locomotives and wagons. Variable cost are higher in the highway mode. At the end of the study, it appears that the prioritization of investments in the railroad is more efficient when compared to road transportation, when considering the costs of medium and long term, mainly external costs such as environmental costs that presented significant values in the highway.
Uncertainties in the Amazon hydropower development: Risk scenarios and environmental issues around the Belo Monte dam
Wilson Cabral de Sousa Júnior,John Reid
Water Alternatives , 2010,
Abstract: The Amazon region is the final frontier and central focus of Brazilian hydro development, which raises a range of environmental concerns. The largest project in the Amazon is the planned Belo Monte Complex on the Xingu river. If constructed it will be the second biggest hydroelectric plant in Brazil, third largest on earth. In this study, we analyse the private and social costs, and benefits of the Belo Monte project. Furthermore, we present risk scenarios, considering fluctuations in the project’s feasibility that would result from variations in total costs and power. For our analysis, we create three scenarios. In the first scenario Belo Monte appears feasible, with a net present value (NPV) in the range of US$670 million and a rate of return in excess of the 12% discount rate used in this analysis. The second scenario, where we varied some of the project costs and assumptions based on other economic estimates, shows the project to be infeasible, with a negative NPV of about US$3 billion and external costs around US$330 million. We also conducted a risk analysis, allowing variation in several of the parameters most important to the project’s feasibility. The simulations brought together the risks of cost overruns, construction delays, lower-than-expected generation and rising social costs. The probability of a positive NPV in these circumstances was calculated to be just 28%, or there is a 72% chance that the costs of the Belo Monte dam will be greater than the benefits. Several WCD recommendations are not considered in the project, especially those related to transparency, social participation in the discussion, economic analysis and risk assessment, and licensing of the project. This study underscores the importance of forming a participatory consensus, based on clear, objective information, on whether or not to build the Belo Monte dam.
Extreme Events Assessment Methodology Coupling Debris Flow, Flooding and Tidal Levels in the Coastal Floodplain of the São Paulo North Coast (Brazil)  [PDF]
Rafael de Oliveira Sakai, Diego Louren?o Cartacho, Emilia Arasaki, Paolo Alfredini, Alessandro Pezzoli, Wilson Cabral de Sousa Júnior, Maurizio Rosso, Luca Magni
International Journal of Geosciences (IJG) , 2013, DOI: 10.4236/ijg.2013.45B006
Abstract:

The North Coastal Region of the State of S?o Paulo, which comprises the Municipalities of Caraguatatuba, S?o Sebasti?o, Ilhabela and Ubatuba, is one of the most prone to flooding and debris flow deposition Brazilian areas, owing to hydrological extreme rainfall events usually coupled with extreme tidal levels. This risk is also high due to human lives and material assets, with increasing population rates and the establishment of large companies such as the Oil industry, with reduced defense/prevention measures and works.The catastrophic scenario of the city of Caraguatatuba, in March 1967, resulting from one of the most serious natural disasters in Brazil, fosters discussions about probabilities of heavy rainfall-caused events and rise in the sea level in coastal areas. Hence, this research is a consequence of this reality. The research is founded on an innovative methodology based on the analysis of past data of rainfall and tidal stations, complemented with debris flow registers in the region of the north coastal zone of the State of S?o Paulo (Brazil). The anaysis developed involved the meteorological, hydraulic, geotechnical and statistical knowledge areas.Practical results are intended to be used for urban planning, designs of macro-drainage, fluvial, maritime projects and debris flow retention structures. These practical applications will then associate the probability of occurrence of certain types of heavy rainfall-caused events such as flooding or debris flow coupled with a corresponding increase in tidal levels.

Influência do ambiente natural sobre o ambiente construído: um estudo sobre o índice de chuva dirigida
Morelli, Fabiano;Lima, Maryangela Geimba de;Sousa Júnior, Wilson Cabral de;
Ambiente & Sociedade , 2012, DOI: 10.1590/S1414-753X2012000100004
Abstract: this work analyzes environmental factors (rain and winds) range and its influence under the buildings. the results for the analyzed period (2000-2010) showed a considerable variation among the maximum and minimum index to brazil and could support adaptation of technical standards for buildings in order to increase their lifetime, and consequently reduce the impact over the built environment.
Determina??o dos valores cefalométricos de Wits em jovens amazonenses, com oclus?o normal
Oliveira Junior, Wilson Maia de;Vigorito, Julio Wilson;Tuma, Carlos Eduardo da S. Nossa;Cabral, Lioney da Silva;Maia, Savana de Alencar;Maia, Dácia Sarina Parente;
Revista Dental Press de Ortodontia e Ortopedia Facial , 2007, DOI: 10.1590/S1415-54192007000100016
Abstract: aim: to determine the mean values of wits appraisal in a sample of amazons brazilian youths, with normal occlusion. methods: cephalometric tracings were used to determine the wits appraisal in a sample of 30 amazon brazilian youths (mean age: 21.6 years), 15 boys and 15 girls, with normal occlusion, that had not been submitted to orthodontic treatment. all individuals were children and grandchildren of amazons parents and grandparents. all of them had completed permanent dentition without third molars. wits appraisal was compared between gender with a student t test. results and conclusion: there was no difference between gender, and our results suggest the necessity of developing a specific cephalometric pattern for amazon brazilians.
Padroniza??o de modelo de cora??o isolado "working heart" com circula??o parabiótica
Silveira Filho, Lindemberg da Mota;Petrucci Junior, Orlando;Carmo, Marcio Roberto do;Oliveira, Pedro Paulo Martins de;Vilarinho, Karlos Alexandre de Sousa;Vieira, Reinaldo Wilson;Braile, Domingo Marcolino;
Revista Brasileira de Cirurgia Cardiovascular , 2008, DOI: 10.1590/S0102-76382008000100004
Abstract: objective: to develop an isolated working heart model with parabiotic circulaton in swines and verify its stability and possibility to allow effective measurements of hemodinamic and metabolic data. methods: this model was developed during study of association of agents to cardiolegia. there were performed 18 experiments, each with a support animal and a donor animal. donor animal heart was perfused as isolated working heart with parabiotic circulation from support animal. isolated heart underwent regional ischemia by interventricular artery clamping, followed by global ischemia. during reperfusion in working heart state mode at 30, 60 and 90 minutes, contractility indices such as elastance, preload recruitable stroke work index and metabolic data were acquired. results: support animals were kept stable throughout the procedures without use of blood transfusions or vasoactive drugs. ph, oxygen partial pressure and hematocrit were kept stable and within physiologic ranges. isolated heart was perfused adequately throughout the experiment. all hemodinamic and metabolic data proposed were adequately measured in working heart state mode. conclusion: this swine isolated "working heart" model was kept stable throughout the experiments with no administration of vasoactive drugs and it allowed adequate measurements of metabolic and hemodinamic data.
Sangramento espontaneo de artéria lombar em paciente com doen?a de Von Recklinghausen: tratamento endovascular
Nasser, Felipe;Affonso, Breno Boueri;Zurstrassen, Charles Edouard;Sousa Junior, Wilson de Oliveira;Leal Filho, Joaquim Mauricio da Motta;Yamada, Fabio;Petterle, Paulo Henrique;Carnevale, Francisco Cesar;
Jornal Vascular Brasileiro , 2008, DOI: 10.1590/S1677-54492008000400016
Abstract: retroperitoneal bleeding is mainly due to traumatic events with a high amount of kinetic energy, with few reported cases of spontaneous events in the literature. we report on a case of a pregnant woman with von recklinghausen"s disease and bulky retroperitoneal hematoma diagnosed during cesarean delivery secondary to spontaneous lumbar artery rupture. von recklinghausen"s disease has well-described vascular manifestations, mainly characterized by stenoses related to intramural tumors (schwann cell proliferation) and rarely asymptomatic aneurysmal dilatations. in this case, aortography was performed with successful selective catheterization and embolization of the bleeding artery.
Visualiza??o de refluxo em aspirador de sangue e reservatório de cardiotomia usados em circula??o extracorpórea
Vieira Junior, Francisco Ubaldo;Vieira, Reinaldo Wilson;Costa, Eduardo Tavares;Antunes, Nilson;Petrucci Junior, Orlando;Oliveira, Pedro Paulo Martins de;Silveira Filho, Lindemberg da Mota;Vilarinho, Karlos Alexandre de Sousa;Severino, Elaine Soraya Barbosa de Oliveira;
Revista Brasileira de Cirurgia Cardiovascular , 2009, DOI: 10.1590/S0102-76382009000500015
Abstract: objective: one of the major damage caused by occlusion in roller pumps is hemolysis. comparative studies between roller pump with adjustments non occlusive and centrifugal pumps have been made in recent decades in an attempt to develop new products and adjustments that cause fewer traumas to the figurative elements of blood. usually the roller pumps are adjusted by the static method due to concern variables flow that can occur with non-occlusive settings. excessive slack in the rollers provoke back flow and can provides errors in the calculation of flow by the rotation of the pump, according to the devices added to the circuit and the systemic resistance of the patient. the objective of this study is to evaluate the back flow caused by two types of roller pumps in blood aspirator and cardiotomy reservoir. method: back flow visualization was performed in blood aspirator and cardiotomy reservoir. it was tested two different models of roller pumps, adjusted by drop rate and dynamic calibration. the tests were conducted with silicone tubes of 3/8 x 1/16 e 1/2 x 3/32 inches in diameter in water and solution similar to blood. results: we recorded back flow visually in blood aspirator and in cardiotomy reservoir with their measure of values. the pumps had differences in refluxes measured adjusted by the dynamic calibration method. pump#2 presents back flow adjusted fully occluded. conclusion: the back flow measured in two models of pump present differences (p <0.008). the results indicate differences in its characteristics caused by the process of manufacturing, design or possible wear. non-occlusive adjustments may cause variations in flow with the increase of resistance added to the circuit, with difficulty to fix the flow by increasing the rotation.
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