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Search Results: 1 - 10 of 677538 matches for " Carina C. de M.;Guimar?es "
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Distribui??o espa?o-temporal e sucesso reprodutivo de Eretmochelys imbricata nas praias do Ipojuca, Pernambuco, Brasil
Moura, Carina C. de M.;Guimares, Elisangela da S.;Moura, Geraldo J. B. de;Amaral, Getúlio J. A. do;Silva, Arley C. da;
Iheringia. Série Zoologia , 2012, DOI: 10.1590/S0073-47212012005000003
Abstract: this study aimed to verify the spatio-temporal distribution of eretmochelys imbricata (linnaeus, 1766) and aspects of its reproductive biology, such as incubation time, reproductive success, biometric measurements of females, number of nests and fecundity. data were collected during 2007 to 2010, on the beaches of muro alto, cupe, merepe, porto de galinhas, and maracaípe, all of them located in the city of ipojuca, state of pernambuco, brazil. parameters relating to reproductive biology and nesting areas of the species were comparatively analyzed. eretmochelys imbricata was recorded nesting between october and may, when 350 nests were monitored through three seasons. the spawning peak happened from january to march, also revealing a seasonal pattern. the number of nests differed significantly between seasons. the merepe beach presented an elevated occurrence of nests (46 nests/km) if compared to the other monitored beaches. on the aspects of reproductive biology, the reproductive success was 65,6% and the incubation time interval ranged from 54 to 56 days. biometric measurements were collected from 59 specimens, resulting in an average of 92,5 cm ± 4,5 for the curved carapace length, and of 83,4 cm ± 5 for the curved carapace width. the results can be used for subsidize conservation plans and demonstrate that the beaches recorded in this study are relevant as nesting areas for e. imbricata.
Distribui o espa o-temporal e sucesso reprodutivo de Eretmochelys imbricata nas praias do Ipojuca, Pernambuco, Brasil Spatio-temporal distribution and reproductive success of Eretmochelys imbricata on the beaches of Ipojuca, Pernambuco, Brazil
Carina C. de M. Moura,Elisangela da S. Guimares,Geraldo J. B. de Moura,Getúlio J. A. do Amaral
Iheringia. Série Zoologia , 2012,
Abstract: Este estudo objetivou verificar a distribui o temporal e espacial de Eretmochelys imbricata (Linnaeus, 1766) e aspectos de sua biologia reprodutiva, tais como tempo de incuba o, sucesso reprodutivo, biometria das fêmeas, número de ninhos e fecundidade. Os dados foram coletados de 2007 a 2010 nas praias de Muro Alto, Cupe, Merepe, Porto de Galinhas e Maracaípe, todas elas localizadas no município do Ipojuca, estado de Pernambuco, Brasil. Foram analisados comparativamente parametros relativos à biologia reprodutiva e áreas de nidifica o da espécie. Eretmochelys imbricata foi registrada nidificando entre os meses de outubro a maio, totalizando 350 ninhos monitorados em três temporadas. Os picos de desova ocorreram de janeiro a mar o, revelando um padr o sazonal das desovas. Houve diferen a significativa entre o número de ninhos nas temporadas. A praia de Merepe apresentou uma ocorrência elevada de ninhos (46 ninhos/km) em rela o às demais praias monitoradas. Quanto aos aspectos da biologia reprodutiva, o sucesso reprodutivo foi 65,6%, e o intervalo do tempo de incuba o de 54 a 56 dias. As medidas biométricas foram coletadas de 59 espécimes, e apresentaram média de 92,5 cm ± 4,5 para o comprimento curvilíneo da carapa a e de 83,4 cm ± 5 para a largura curvilínea da carapa a. Os resultados podem ser utilizados para subsidiar planos de conserva o e demonstram que as praias registradas neste estudo têm relevancia como áreas de nidifica o para E. imbricata. This study aimed to verify the spatio-temporal distribution of Eretmochelys imbricata (Linnaeus, 1766) and aspects of its reproductive biology, such as incubation time, reproductive success, biometric measurements of females, number of nests and fecundity. Data were collected during 2007 to 2010, on the beaches of Muro Alto, Cupe, Merepe, Porto de Galinhas, and Maracaípe, all of them located in the city of Ipojuca, state of Pernambuco, Brazil. Parameters relating to reproductive biology and nesting areas of the species were comparatively analyzed. Eretmochelys imbricata was recorded nesting between October and May, when 350 nests were monitored through three seasons. The spawning peak happened from January to March, also revealing a seasonal pattern. The number of nests differed significantly between seasons. The Merepe beach presented an elevated occurrence of nests (46 nests/km) if compared to the other monitored beaches. On the aspects of reproductive biology, the reproductive success was 65,6% and the incubation time interval ranged from 54 to 56 days. Biometric measurements were collected from 59
Endophytic Mycobiota Characterization of the Amazonian Mistletoe Cladocolea micrantha Hosted in Cashew Tree  [PDF]
Anderson C. Guimares, Antonio C. Siani, José L. Bezerra, Antonia Q. Lima de Souza, Maria Inez M. Sarquis
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.44113

Endophytic fungi were identified from different parts of the medicinal parasitic mistletoe Cladocolea micrantha and from its host Anacardium occidentale, suggesting a strict host-parasite relationship. Eight fungal endophytes were isolated and morphologically characterized. The ascomycete Guignardia mangiferae and strains of Mycelia sterilia were prevalent in the isolations. The unequivocal identification of Guignardia mangiferae at a probabilistic degree close to 100% was carried out by DNA extraction followed by PCR analyses of the ITS-1 and ITS-2 regions and comparison of the genetic sequence with the NCBI database.

Blindness and Fungi Kingdom: a New Approach for Teaching a Biological Theme for Students with Special Visual Needs  [PDF]
Renata de Souza, Cristina M. C. Delou, Myriam B. V. C?rtes, Isabelle Mazza-Guimares, Sidio Machado, Carlos R. Rodrigues, Helena C. Castro
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.35100
Abstract: Teaching students that have visual disabilities differ from others as they need other senses to unveil our extremely visual world. Therefore it is necessary to use specific didactical resources for properly teaching these students. In this work we described a tactical didactical material to teach the Fungi Kingdom topic, an important biological theme that involves diseases and biotechnological contents. The material was constructed with parchment paper and others simple materials that can be produced at school or even home. Its main advantage is the simple preparation and low cost, which allows the construction by anyone about any theme. To identify the effectiveness of this didactical material, we performed an evaluation with blind students, which confirmed its potentiality for using on teaching not only this complex topic but other regarding mycology or other biological themes.
An edge-based unstructured finite volume procedure for the numerical analysis of heat conduction applications
Lyra, P. R. M.;Lima, R. de C. F. de;Guimares, C. S. C.;Carvalho, D. K. E. de;
Journal of the Brazilian Society of Mechanical Sciences and Engineering , 2004, DOI: 10.1590/S1678-58782004000200007
Abstract: in recent years, there has been a significant level of research on the application of unstructured mesh methods to the simulation of a variety of engineering and scientific problems. great progress has been achieved in such area and one of the most successful methodologies consists on the use of the finite volume method (fvm). the unstructured fv formulation is very flexible to deal with any kind of control volume and therefore any kind of unstructured meshes, which are particularly important when complex geometries or automatic mesh adaptation are required. in this article, an unstructured finite volume vertex centered formulation, which was implemented using an edge-based data structure, is deduced and detailed for the solution of heat conduction problems. the numerical formulation is initially described considering a tri-dimensional model and latter particularized for bi-dimensional applications using triangular meshes. the presented procedure is very flexible and efficient to solve potential problems. it can also be extended to deal with a broader class of applications, such as models involving convection-diffusion-reaction terms, after considering the appropriate discretization of the convection-type term. in order to demonstrate the potentiality of the method, some model problems are investigated and the results are validated using analytical or other well-established numerical solutions.
Distribui??o da gordura corporal e perfis lipídico e glicêmico de pacientes infectados pelo HIV
Guimares, Milena Maria M.;Greco, Dirceu Bartolomeu;O. Júnior, Ant?nio Ribeiro de;Penido, Mariana Guimares;Machado, Lucas José de C.;
Arquivos Brasileiros de Endocrinologia & Metabologia , 2007, DOI: 10.1590/S0004-27302007000100008
Abstract: the aims of this study were to describe anthropometric data and glycemic and lipidic profiles of hiv-infected patients treated or not with antiretrovirals (arv) drugs, and to assess association between these drugs and body composition changes, lipid and glucose homeostasis disturbances. there were 176 patients included (133 arv-treated patients and 43 arv-na?ve). the patients were submitted to clinical evaluation, laboratorial analysis, ultrasonographic measurements, bioelectrical impedance analysis and skin folds thickness measurements. the arv-treated group showed higher waist-to-hip ratio (p= 0.0002), higher intra-abdominal fat thickness measured by ultrasonography (p= 0.003) and lower bicipital (p= 0.01) and tricipital (p= 0.0002) skin folds. this group also showed higher triglyceride (p= 0.0002), total cholesterol (p= 0.00007), hdl cholesterol (p= 0.009), glucose measurements one hour (p= 0.01) and two hours (p= 0.001) after dextrose load, higher levels of fasting insulin (p= 0.03) and higher homar index (p= 0.02). the antiretroviral drugs are associated with increased visceral fat and decreased peripheral fat pads. beside that, these drugs are associated with atherogenic lipid profile and insulin resistance, two independent risk predictors of cardiovascular disease.
Eficiência produtiva de cultivares de arroz com divergência fenotípica
Guimares, Cleber M.;Stone, Luís F.;Neves, Péricles de C. F.;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2008, DOI: 10.1590/S1415-43662008000500004
Abstract: the objective of this study was to phenotypically evaluate the traditional rice cultivars guarani and caiapó, and the modern rice cultivars cirad l-141, maravilha, br irga 409, and metica 1 through association among various yield components to establish a genetic selection base in plant population. the study was conducted during the rainy season of 2003-2004, at the embrapa rice & beans experimental station, in santo ant?nio de goiás, goiás, brazil. with supplementary irrigation, the upland rice cultivars cirad l-141, guarani, caiapó, and maravilha presented higher grain harvest indexes and lower spikelet sterility than the lowland cultivars br irga 409 and metica 1. it was concluded that the highest biomass yield of the lowland rice cultivars did not have an effect upon the grain yield. the upland cultivar cirad l-141, with high leaf area, panicles with high grain number and average performance of the agronomic components evaluated, such as harvest index, grain weight, tiller fertility, tillering, spikelet sterility and growth index, yielded 12.5% higher than guarani, the second best cultivar. the increase in grain harvest index and weight of grain and the reduction in spikelet sterility, due to their high correlation with grain yield, are considered high priority in the upland rice breeding programs for higher yields.
Behavioral effects of "vehicle" microinjected into the dorsal periaqueductal grey of rats tested in the elevated plus maze
Matheus M.G.,de-Lacerda J.C.,Guimares F.S.
Brazilian Journal of Medical and Biological Research , 1997,
Abstract: To investigate the behavioral effects of different vehicles microinjected into the dorsal periaqueductal grey (DPAG) of male Wistar rats, weighing 200-250 g, tested in the elevated plus maze, animals were implanted with cannulas aimed at this structure. One week after surgery the animals received microinjections into the DPAG of 0.9% (w/v) saline, 10% (v/v) dimethyl sulfoxide (DMSO), 2% (v/v) Tween-80, 10% (v/v) propylene glycol, or synthetic cerebrospinal fluid (CSF). Ten min after the injection (0.5 μl) the animals (N = 8-13/group) were submitted to the elevated plus maze test. DMSO significantly increased the number of entries into both the open and enclosed arms when compared to 0.9% saline (2.7 ± 0.8 and 8.7 ± 1.3 vs 0.8 ± 0.3 and 5.1 ± 0.9, respectively, Duncan test, P<0.05), and tended to increase enclosed arm entries as compared to 2% Tween-80 (8.7 ± 1.3 vs 5.7 ± 0.9, Duncan test, P<0.10). In a second experiment no difference in plus maze exploration was found between 0.9% saline- or sham-injected animals (N = 11-13/group). These results indicate that intra-DPAG injection of some commonly used vehicles such as DMSO, saline or Tween-80 affects the exploratory activity of rats exposed to the elevated plus maze in statistically different manners
Dilatonic, Chiral Cosmic Strings
V. C. Andrade,A. L. Naves de Oliveira,M. E. X. Guimares
Physics , 2004,
Abstract: In this work, we deal with the chiral string model for which the world-sheet current is null in the framework of a scalar-tensor gravity. Our main goal is to analyse the impact of such a current on the gravitational macroscopic effects. For the purpose of this analysis, we first study the gravitational properties of the spacetime generated by this string in the presence of a dilaton field. Then, we carry out an investigation of the mechanism of formation and evolution of wakes in this framework, showing the explicit contribution of the chirality to this effect.
The joint use of the tangential electric field and surface Laplacian in EEG classification
C. G. Carvalhaes,J. Acacio de Barros,M. Perreau-Guimares,P. Suppes
Physics , 2012, DOI: 10.1007/s10548-013-0305-y
Abstract: This paper discusses the use of the scalp electric field to decode EEG-recorded brain processes. Instead of using bipolar measurements, the scalp electric field is described as a 3-vector field whose orthogonal components are obtained from the data through spline differentiation. The method was tested in the context of brainwave recognition with experiments involving brain representation of spoken phonemes, visual images, and mental images. The practical effect of improvements in recognition rates was assessed by estimating effect sizes and confidence intervals, the results suggesting a good prospect for other applications.
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