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Search Results: 1 - 10 of 208080 matches for " P. Teixeira; "
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Racionalidade e representa o: requisitos para a explora o dos limites do político
Pérez, Reginaldo Teixeira
Civitas , 2001,
Abstract: Examinam-se os conceitos de racionalidade e representa o na constitui o da ordem sócio-política. Busca-se identificar o conteúdo desses conceitos em alguns autores representativos do pensamento político moderno e contemporaneo, com ênfase no universo liberal. A partir de defini es provisórias dos conceitos de racionalidade e representa o, prop e-se o inter-relacionamento entre ambos, a partir dessa associa o, analisam-se suas resultantes sobre a ordem.
Higgs boson searches at LEP
P. Teixeira-Dias
Physics , 2008, DOI: 10.1088/1742-6596/110/4/042030
Abstract: In this paper we report on the legacy of Higgs boson searches at LEP. Specifically, the results of the statistical combination of the searches carried out by the ALEPH, DELPHI, L3 and OPAL experiments are presented. In the search for the Standard Model (SM) Higgs boson, a signal with mh<114.4 GeV/c^2 has been excluded at the 95% confidence level (CL) or higher. The LEP collaborations also carried out extensive searches for Higgs particles predicted by many scenarios beyond the Standard Model. Here we can only report on a very small fraction of these searches and refer the reader to the complete list of LEP-combined search results.
Feasibility Study for Power Generation during Peak Hours with a Hybrid System in a Recycled Paper Mill  [PDF]
Adriano Beluco, Clodomiro P. Colvara, Luis E. Teixeira, Alexandre Beluco
Computational Water, Energy, and Environmental Engineering (CWEEE) , 2013, DOI: 10.4236/cweee.2013.22005
Abstract:

The differential pricing for peak hours encourages industrial consumers to look for independent power supplies for the period from 19 to 22 hours. This paper presents a study to identify the optimal solution for a recycled paper mill that also intends to work in that period. The factory is located in Rio Grande do Sul, in southern Brazil, and considers the use of a diesel gen set, a micro hydro power plant and possibly PV modules. Two micro hydro power plants were considered in the study, an old plant to be renewed and another to be fully implemented. The software Homer was used as a tool to determine the most feasible combination of components considered in the study. The sale of surplus power to the energy system appears as a key to viability of alternatives that are not based solely on diesel generators. The optimal solution consists of a combination of diesel generators and micro hydro power plant, in one case, and only on hydroelectric power plant in another, with a significant penetration of PV modules if its cost is reduced to 12% of the current price, selling an amount of energy equal to that which is bought. The annual water availability in one of the sites requires diesel supplement, while the other, more abundant, this supplement is not necessary.

Localiza o e Relocaliza o Industrial - Regi o Metropolitana do Rio de Janeiro (Setor Oriental)
Marlene P.V. Teixeira
Anuário do Instituto de Geociências , 1982,
Abstract:
Autoantibodies to Apolipoprotein A-1 in Cardiovascular Diseases: Current Perspectives
P. C. Teixeira,P. Cutler,N. Vuilleumier
Clinical and Developmental Immunology , 2012, DOI: 10.1155/2012/868251
Abstract: Immune-mediated inflammation plays a major role in atherosclerosis and atherothrombosis, two essential features for cardiovascular disease (CVD) development, currently considered as the leading cause of death in the western world. There is accumulating evidence showing that humoral autoimmunity might play an important role in CVD and that some autoantibodies could represent emerging cardiovascular risk factors. Recent studies demonstrate that IgG autoantibodies against apolipoprotein A-1 (apoA-1) are raised in many diseases associated with a high cardiovascular risk, such as systemic lupus erythematosus, acute coronary syndrome, rheumatoid arthritis, severe carotid stenosis, and end-stage renal disease. In this work, we aimed at reviewing current data in the literature pointing to anti-apolipoprotein A-1 antibodies (anti-apoA-1 IgG) as a possible prognostic and diagnostic biomarker of cardiovascular risk and appraising their potential role as active mediators of atherogenesis.
Autoantibodies to Apolipoprotein A-1 in Cardiovascular Diseases: Current Perspectives
P. C. Teixeira,P. Cutler,N. Vuilleumier
Journal of Immunology Research , 2012, DOI: 10.1155/2012/868251
Abstract: Immune-mediated inflammation plays a major role in atherosclerosis and atherothrombosis, two essential features for cardiovascular disease (CVD) development, currently considered as the leading cause of death in the western world. There is accumulating evidence showing that humoral autoimmunity might play an important role in CVD and that some autoantibodies could represent emerging cardiovascular risk factors. Recent studies demonstrate that IgG autoantibodies against apolipoprotein A-1 (apoA-1) are raised in many diseases associated with a high cardiovascular risk, such as systemic lupus erythematosus, acute coronary syndrome, rheumatoid arthritis, severe carotid stenosis, and end-stage renal disease. In this work, we aimed at reviewing current data in the literature pointing to anti-apolipoprotein A-1 antibodies (anti-apoA-1 IgG) as a possible prognostic and diagnostic biomarker of cardiovascular risk and appraising their potential role as active mediators of atherogenesis.
CYP2C19 (+ or -)*2/(+ or -)*17 Diplotypes: Prognostic impactson patients with acute coronary syndrome  [PDF]
Rogério Teixeira, Manuela Grazina, Pedro Monteiro, Francisco Soares, Margarida Louren?o, Guilherme Pêgo
World Journal of Cardiovascular Diseases (WJCD) , 2012, DOI: 10.4236/wjcd.2012.24041
Abstract: Purpose: To investigate the prognostic impacts of a combined clopidogrel-metabolizing genotypes CYP 2C19 (+ or -)*2/(+ or -)*17 on patients with acute coronary syndrome (ACS). Population and methods: Prospective, longitudinal study of 95 patients admitted for ACS to a single coronary care unit. Patients less than 75 years of age, who survived hospitalization and to whom clopidogrel was prescribed, were included. CYP2C19 genotyping was performed at dis- charge. For analysis, the patients were grouped as follows: Group A ([+]*2/[+]*17) n = 8; Group B ([+]*2/[-]*17) n = 18; Group C ([-]*2/[+]*17) n = 27; and Group D ([-]*2/[-]*17) n = 42. Platelet function was assessed by an ADP platelet aggregation test using a commercially available kit. The primary end-point was a composite of mortality or readmission for ACS. The median time of follow-up was 136.0 (79.0 - 188.0) days. Results: The mean age of the study patients was 59.9 ± 10.7 years, and 83.2% were male. The allele frequencies of CYP2C19*2 and CYP2C19 *17 were 14.2% and 20%, respectively. Both allele frequencies were in Hardy Weinberg equilibrium. The patient groups were homogenous for demographic data, cardiovascular risk factors, GRACE and CRUSADE bleeding scores, left ventricular ejection fraction, and coronary anatomy. ADP platelet aggre-gation was similar for all groups (respective rates for groups A, B, C, D were 17.5 U (10.3 – 18.7) vs 20.0 U (17.3 – 26.8) vs 16 U (12 – 19) vs 12 U (8 – 22), p = 0.4). Event-free survival was significantly lower for group B (respective rates for Groups A, B, C, D were 87.5% vs 68.8% vs 96.3% vs 92.5%; p = 0.02). By multivariate Cox regression analysis, the CYP2C19 (+)*2/(-)*17 diplotype was an independent predictor of outcome, conferring a 5.2-fold higher adjusted risk for the composite endpoint than the others diplotypes. Conclusion: In our study, patients with the intermediate plus non-ultrarapid clopidogrel-metabolizing genotype ([+]*2/[-]*17) had a significantly poor medium-term prognosis for ischemic events, compared with the other diplotypes.
Cell adhesion molecules involved in the leukocyte recruitment induced by venom of the snake Bothrops jararaca
Stella R. Zamuner,Catarina F. P. Teixeira
Mediators of Inflammation , 2002, DOI: 10.1080/0962935021000051548
Abstract: It has been shown that Bothrops jararaca venom (BjV) induces a significant leukocyte accumulation, mainly neutrophils, at the local of tissue damage. Therefore, the role of the adhesion molecules intercellular adhesion molecule-1 (ICAM-1), LECAM-1, CD18, leukocyte function-associated antigen-1 (LFA-1) and platelet endothelial cell adhesion molecule-1 (PECAM-1) on the BjV-induced neutrophil accumulation and the correlation with release of LTB4, TXA2, tumor necrosis factor-α, interleukin (IL)-1 and IL-6 have been investigated. Anti-mouse LECAM-1, LFA-1, ICAM-1 and PECAM-1 monoclonal antibody injection resulted in a reduction of 42%, 80%, 66% and 67%, respectively, of neutrophil accumulation induced by BjV (250 μg/kg, intraperitoneal) injection in male mice compared with isotype-matched control injected animals. The anti-mouse CD18 monoclonal antibody had no significant effect on venom-induced neutrophil accumulation. Concentrations of LTB4, TXA2, IL-6 and TNF-α were significant increased in the peritoneal exudates of animals injected with venom, whereas no increment in IL-1 was detected. This results suggest that ICAM-1, LECAM-1, LFA-1 and PECAM-1, but not CD18, adhesion molecules are involved in the recruitment of neutrophils into the inflammatory site induced by BjV. This is the first in vivo evidence that snake venom is able to up-regulate the expression of adhesion molecules by both leukocytes and endothelial cells. This venom effect may be indirect, probably through the release of the inflammatory mediators evidenced in the present study.
Melhoramento da mamoneira(Ricinus communis L.) II: observa??es gerais sobre a variabilidade do gênero Ricinus
Krug, C. A.;Mendes, P. Teixeira;
Bragantia , 1942, DOI: 10.1590/S0006-87051942000500002
Abstract: ninety six varieties of ricinus communis, l. were studied as for their growth habit, height, length and number of internodes from the base of the plant to its first inflorescence, types of branching, color of branches and various characters of leaves, inflorescences, fruit clusters, fruits and seeds ; earliness ; yielding capacity and porcentage of oil in the seeds. the description of several of the quantitative characters is supplemented by numerical data, which are also presented graphically. the extreme variability of ricinus offers excellent opportunities not only for genetical studies but also for breeding new and better varieties for cultivation.
Melhoramento da mamoneira (Ricinus communis L.) I: plano geral dos trabalhos em execu??o nas sec??es de genética e plantas oleaginosas do instituto agron?mico do estado de S?o Paulo
Krug, C. A.;Mendes, P. Teixeira;
Bragantia , 1942, DOI: 10.1590/S0006-87051942000500001
Abstract: in the introduction to this article data are presented to show the growing economic importance of the cultivation of ricinus in brasil and particularly in the state of s?o paulo. following general statements regarding the botany, the origin and the geographic distribution of this genus, the investigations are outlined which are carried out by the divisions of genetics and oil plants of the instituto agron?mico of the state of s?o paulo, brasil, to improve this important crop plant. summarising, these investigations deal with the following subjects : a) organisation of a large collection of types ; b) investigations concerning the variability of the genus ricinus c) genetic analysis; d) regional variety trials ; e) improvement of the best varieties by individual selection and progeny trials ; f) regional strain tests ; g) breeding of improved varieties through hybridisation. in spite of the fact that these investigations have only been carried out for a few years, they are already furnishing results of economic importance, as seeds of superior varieties are already on sale to the farmers.
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