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Search Results: 1 - 10 of 185273 matches for " Clézio Thadeu de Souza Dutra "
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Barriers and Challenges to the Sustainability Requirements Implementation in Public Procurement of Engineering Works and Services  [PDF]
Clézio Thadeu de Souza Dutra, Ubiratan Rohan, Robson Rosa Branco, Christine Kowal Chinelli, Alexandre Jose Vianna Barbosa de Araujo, Carlos Alberto Pereira Soares
Open Journal of Civil Engineering (OJCE) , 2017, DOI: 10.4236/ojce.2017.71001
The environmental damage arising from the construction and engineering services was responsible for the appearance of several norms and resolutions regulating and directing the sector’s performance. In this article, we research how professionals with experience in public bids assess the difficulty degree of the implementation of those requirements and how they assess the environmental legislation regarding the protection and conservation of the environment, impact on costs, deadlines and the solution to environmental problems. The results show that industry professionals consider as “high” the level of difficulty to implement the addressed sustainability requirements, and that the Brazilian environmental legislation does not comply with its environmental protection role, increases the possibility of delays and costs of projects and services and hampers the emergence of solutions that could solve environmental problems.
A Fran a na encruzilhada das reformas
Meridiano 47 : Boletim de Análise de Conjuntura em Rela??es Internacionais , 2009,
Abstract: Esse artigo objetiva a reflex o sobre os protestos que a Fran a atravessa devido ao plano de reformas estruturais do governo.
Biometric features of the capybara′s body and small intestine Hydrochoerus hydrochaeris Linnaeus, 1766 (Mammalia, Rodentia, Hydrochaeridae)
Sirlene Souza Rodrigues,Cláudio César Fonseca,Tarcízio Ant?nio Rego de Paula,Juliano Vogas Peixoto
Biotemas , 2006,
Abstract: Biometric aspects of the body were analyzed, as well as some aspects of the small intestine of the capybara Hydrochoerus hydrochaeris wild species, particularly those that have been provoking economic interest in meat and leather production. Data such as age, corporal weight and length and thoracic perimeter and height were analyzed. Significant correlations were found between the age and the crown-rump (CR) and snout-rump (SR) corporal lengths, and between the corporal weight and the parameters of corporal length, thoracic perimeter and height, so that the age and the corporal weight could be obtained starting from more accessible biometric parameters, relative to corporal measurement. Most of the correlations were more significant in the male animals, especially the correlations between the corporal weight and the parameters CR length, thoracic perimeter and height, as well as the correlation among CR length and thoracic height and perimeter, suggesting the existence of possible sexual dimorphism. In relation to the small intestine, estimates were made of the length and volumetric capacity totals as well as those of its individual segments. The capybara possesses a small intestine that is relatively long, about five times longer than the corporal length, and with a volumetric capacity that is relatively high, representing 6.7% of the corporal weight.
Fatores prognósticos para o desfecho do tratamento da tuberculose pulmonar em Recife, Pernambuco, Brasil
Albuquerque,Maria de Fatima Milit?o de; Leit?o,Clézio Cordeiro de Sá; Campelo,Ant?nio Roberto Leite; Souza,Wayner Vieira de; Salustiano,Ana;
Revista Panamericana de Salud Pública , 2001, DOI: 10.1590/S1020-49892001000600003
Abstract: objective. the objective of this case-control study was to identify prognostic factors for the outcome of pulmonary tuberculosis among 297 patients who were treated between 1994 and 1999 at the federal university of pernambuco clinics hospital, in recife, pernambuco, brazil. methods. the cases were defined as individuals whose treatment ended in death, dropout, or failure. the controls were persons whose treatment ended in cure. the following independent variables were submitted to uni- and multivariate analyses: sex, age, schooling, being a smoker, consuming alcohol, previous treatment for tuberculosis, response to the tuberculin test, hiv serology, resistance to antimicrobial agents, results of direct investigation of alcohol- and acid-resistant bacilli, and treatment approach used. after that, the uni- and multivariate analyses were repeated, including as cases only deaths and individuals with treatment failure. results. four risk factors for tuberculosis treatment failure were found: excessive alcohol intake (odds ratio (or) = 2.58; p = 0.014), co-infection with hiv (or = 3.40; p = 0.028), previous tuberculosis treatment (or = 4.89; p < 0.001), and resistance to two or more antituberculosis drugs (or = 3.49; p = 0.017). in the second multivariate analysis, which excluded dropout cases, no association was found between treatment outcome and excessive alcohol consumption, but the other associations remained. this result suggests a close relationship between alcoholism and treatment dropout. conclusions. in the group that was studied the prognostic factors for failure of pulmonary tuberculosis treatment were interrelated and were of a biological, clinical, and social character. these factors should be identified at the beginning of treatment in order to allow implementation of specific follow-up procedures such as the strategy of directly observed treatment. this would strengthen tuberculosis control at the local level.
Fatores prognósticos para o desfecho do tratamento da tuberculose pulmonar em Recife, Pernambuco, Brasil
Albuquerque Maria de Fatima Milit?o de,Leit?o Clézio Cordeiro de,Campelo Ant?nio Roberto Leite,Souza Wayner Vieira de
Revista Panamericana de Salud Pública , 2001,
Abstract: Objetivos. O objetivo deste estudo caso-controle foi identificar fatores prognósticos para desfecho do tratamento da tuberculose pulmonar em 297 pacientes (Hospital das Clínicas, Universidade Federal de Pernambuco, Brasil) entre 1994 e 1999. Materiais e métodos. Foram considerados casos indivíduos com alta por óbito, abandono ou falência do tratamento. Os controles foram indivíduos com alta por cura. Foram realizadas análises uni e multivariada com as variáveis independentes sexo; idade; escolaridade; hábito de fumar; hábito de ingerir álcool; tratamento anterior para tuberculose; resposta ao teste tuberculínico; sorologia para HIV; grau de resistência aos antimicrobianos; resultado da pesquisa direta de bacilos álcool-ácido-resistentes; esquema terapêutico utilizado. Além disso, repetiram-se as análises uni e multivariada considerando como casos apenas os óbitos e os indivíduos com falência do tratamento. Resultados. A ingest o excessiva de álcool (OR = 2,58; P = 0,014), a co-infec o pelo HIV (OR = 3,40; P = 0,028), o a tratamento anterior para tuberculose (OR = 4,89; P < 0,001) e resistência a duas ou mais drogas antituberculose (OR = 3,49; P = 0,017) foram fatores de risco para o insucesso do tratamento. Na segunda análise multivariada, excluindo os casos de abandono, n o houve associa o entre a o ingest o excessiva de álcool e desfecho do tratamento, mantendo-se as demais associa es, o que sugere uma estreita rela o entre o abandono do tratamento e o etilismo. Conclus es. Os fatores prognósticos para insucesso do tratamento da tuberculose pulmonar entre os indivíduos estudados est o interrelacionados, sendo de natureza biológica, clínica e social. Devem ser identificados no início do tratamento para que sejam implementados procedimentos diferenciados de acompanhamento, tais como tratamento diretamente supervisionado, de forma a fortalecer o controle da tuberculose em nível local.
Validation of the determination of fatty acids in milk by gas chromatography
Simionato, Julliana Isabelle;Garcia, Juliana Carla;Santos, Geraldo Tadeu dos;Oliveira, Cláudio Celestino;Visentainer, Jesui Vergilio;Souza, Nilson Evelázio de;
Journal of the Brazilian Chemical Society , 2010, DOI: 10.1590/S0103-50532010000300018
Abstract: fatty acid methyl esters (fames) in commercial milk samples were analyzed by gas chromatography coupled with flame ionization detection. the saturated fatty acids (sfa) were the most abundant. the major sfa were palmitic acid (16:0), estearic acid (18:0), and myristic acid (14:0). significant differences (p < 0.500) were found between the amounts of palmitic acid (276 ± 17 mg g-1 and 248 ± 20 mg g-1) and myristic acid (95 ± 5 mg g-1 and 85 ± 7 mg g-1) in samples. however, no difference was observed for estearic acid (113 ± 6 mg g-1 and 114 ± 11 mg g-1). the conjugated linoleic acid (cla) isomer 18:2c9t11 was detected in the samples and quantified. however, the differences found between the samples analyzed were not significant (10.4 ± 0.7 mg g-1 and 9.9 ± 0.6 mg g-1). the analysis of a certified reference powder milk sample (rm-8435 nist) gave good recoveries (> 80%), indicating that the method can efficiently determine fatty acids in milk and dairy products.
Effects of chronic caloric restriction on kidney and heart redox status and antioxidant enzyme activities in Wistar rats
Marcio Ferreira Dutra*, Ivi Juliana Bristot, Cristiane Batassini, Nubia Broetto Cunha, Adriana Fernanda Kuckartz Vizuete, Daniela Fraga de Souza, Jose Cl
BMB Reports , 2012,
Abstract: Caloric restriction (CR) has been associated with healthbenefits and these effects have been attributed, in part, tomodulation of oxidative status by CR; however, data are stillcontroversial. Here, we investigate the effects of seventeenweeks of chronic CR on parameters of oxidative damage/modification of proteins and on antioxidant enzyme activitiesin cardiac and kidney tissues. Our results demonstrate that CRinduced an increase in protein carbonylation in the heartwithout changing the content of sulfhydryl groups or theactivities of superoxide dismutase and catalase (CAT).Moreover, CR caused an increase in CAT activity in kidney,without changing other parameters. Protein carbonylation hasbeen associated with oxidative damage and functionalimpairment; however, we cannot exclude the possibility that,under our conditions, this alteration indicates a differentfunctional meaning in the heart tissue. In addition, wereinforce the idea that CR can increase CAT activity in thekidney.
Quantum propagator for some classes of three-dimensional three-body systems
A. de Souza Dutra
Physics , 2007, DOI: 10.1016/j.aop.2005.09.007
Abstract: In this work we solve exactly a class of three-body propagators for the most general quadratic interactions in the coordinates, for arbitrary masses and couplings. This is done both for the constant as the time-dependent couplings and masses, by using the Feynman path integral formalism. Finally the energy spectrum and the eigenfunctions are recovered from the propagators.
Strong-Weak Coupling Duality in Quantum Mechanics
A. de Souza Dutra
Physics , 1996,
Abstract: We present a strong-weak coupling duality for quantum mechanical potentials. Similarly to what happens in quantum field theory, it relates two problems with inverse couplings, leading to a mapping of the strong coupling regime into the weak one, giving information from the nonperturbative region of the parameters space. It can be used to solve exactly power-type potentials and to extract deep information about the energy spectra of polynomial ones.
Mapping deformed hyperbolic potentials into nondeformed ones
A. de Souza Dutra
Physics , 2005, DOI: 10.1016/j.physleta.2005.02.075
Abstract: In this work we introduce a mapping between the so called deformed hyperbolic potentials, which are presenting a continuous interest in the last few years, and the corresponding nondeformed ones. As a consequence, we conclude that these deformed potentials do not pertain to a new class of exactly solvable potentials, but to the same one of the corresponding nondeformed ones. Notwithstanding, we can reinterpret this type of deformation as a kind of symmetry of the nondeformed potentials.
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