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Search Results: 1 - 10 of 69152 matches for " Jorge Luis Ferreira "
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Considera??es históricas sobre a difus?o do pensamento Kleiniano no Brasil
Abr?o, Jorge Luis Ferreira;
Revista Latinoamericana de Psicopatologia Fundamental , 2008, DOI: 10.1590/S1415-47142008000300002
Abstract: this article describes the different moments that characterized the diffusion of kleinian thought in psychoanalytic societies in brazil. the article results from qualitative historical research based on interviews with thirteen psychoanalysts who participated in this process of diffusion. the first influences appeared in 1950, exercised by pioneers trained either in britain or in argentina. the areas in which the kleinians were pioneers -psychoanalysis of children and of psychotics - were the first aspects dealt with by this group in brazil. between 1950 and 1970 very dogmatic approaches were taken toward kleinian ideas. as of 1980, with the publication of new translations of melanie klein's work and with the introduction of contemporary kleinian thought, a more balanced use of this theoretical-technical model could been seen.
Emergence of fluoroquinolone-resistant Neisseria gonorrhoeae in S?o Paulo, Brazil
Belda Junior, Walter;Velho, Paulo Eduardo Neves Ferreira;Arnone, Marcelo;Fagundes, Luis Jorge;
Brazilian Journal of Microbiology , 2007, DOI: 10.1590/S1517-83822007000200020
Abstract: continued monitoring of antimicrobial resistance patterns is essential in order for sexually transmitted diseases (std) treatment to be effective. gonococci isolates from 65 patients in s?o paulo were submitted to susceptibility testing, and a decreased susceptibility or resistance to ciprofloxacin was observed in 8.7% of these patients, indicating that neisseria gonorrhoeae fluoroquinolone resistance is emerging in brazil.
Produ??o de painéis compensados estruturais com diferentes composi??es de laminas de Eucalyptus saligna e Pinus caribaea
Iwakiri, Setsuo;Matos, Jorge Luis Monteiro de;Ferreira, Erika da Silva;Prata, José Guilherme;Trianoski, Rosilani;
Revista árvore , 2012, DOI: 10.1590/S0100-67622012000300019
Abstract: the objective of this work was to evaluate the quality of structural plywood manufactured with veneers of eucalyptus saligna and pinus caribaea var. caribaea, var. hondurensis, var. bahamensis, using different board compositions. it was manufactured experimental panels measuring 50 x 50 cm composed by 5 veneers with 2.2 mm thickness, according to following compositions: (1) panels with all veneers of eucalytpus saligna and pinuscaribaea (t1 to t4); (2) panels with veneers of eucalyptus saligna mixed with pinus caribaea (t5 to t10). the panels completely manufactured with veneers of eucalyptus saligna showed higher values of glue line shear strength, parallel and perpendicular moe and mor. the panel compositions using the veneers of both species with alternate position in the layer did not effectively influence the properties of glue line shear strength, perpendicular moe and mor. the placing of eucalyptus saligna veneers on the face of plywood resulted in higher values of parallel moe and mor. the results of mechanical properties of plywood evaluated in this study were satisfactory in comparison to the control values of the literature and with those the minimum values required by technical standards, indicating the feasibility of production of "combi" type plywood using different veneer combination of hardwood and softwood species.
Ajustes de curvas de crescimento em bovinos Nelore da regi o Norte do Brasil Fitting of growth curves of Nellore cattle from Northern Brazil
Fernando Brito Lopes,Marcelo Correa da Silva,Ednira Gleida Marques,Jorge Luis Ferreira
Revista Brasileira de Saúde e Produ??o Animal , 2011,
Abstract: Objetivou-se determinar o modelo mais adequado para descrever o crescimento de bovinos Nelore. Quatro modelos n o-lineares (Brody, Von Bertalanffy, Gompertz e Logístico), foram ajustados pelo método de Gauss-Newton, mediante utiliza o do procedimento NLIN do SAS, a dados peso-idade do nascimento aos 750 dias de idade de bovinos nascidos entre 1987 e 2007 em rebanhos localizados no Norte do Brasil. A qualidade do ajuste dos modelos foi feita por meio do quadrado médio do resíduo, do coeficiente de determina o ajustado, do erro de predi o, do desvio médio absoluto dos resíduos, da interpreta o biológica dos parametros A e k, do gráfico de pesos observados e estimados, da taxa de crescimento instantanea e relativa, bem como da taxa de maturidade absoluta. Todos os modelos analisados convergiram. As estimativas médias para A e k foram 470,50kg e 0,002 dia-1; 357,80kg e 0,004 dia1; 337,60kg e 0,005dia1; e 309,60kg e 0,008 dia1, para os Modelo de Brody, Von Bertalanffy, Gompertz e Logístico respectivamente. Dentro do período analisado, o modelo Bertalanffy é o mais indicado para representar a curva de crescimento média e também para ser utilizado em estudos do crescimento de animais da ra a Nelore da regi o Norte do Brasil. This study was carried out to determined the best nonlinear model to describe Nelore cattle growth. The models used (Brody, Von Bertalanffy, Gompertz and Logistic models) were fitted by Gauss-Newton method to weight-age data of birth to 750 days old of Nellore cattle raised in Northern Brazil. The models adjustment quality was made by mean square error, adjusted determination coefficient, prediction error, absolute mean deviation residuals, A and k biological parameters, graphics of observed and estimated weights, of instantaneous and relative growth rate and absolute maturity. The convergence criteria were satisfied for all nonlinear models. Estimative mean for A and k was 470.50kg and 0.002 dia-1; 357.80kg and 0.004 dia-1; 337.60kg and 0.005 dia-1; and 309.60kg and 0,008 dia-1 for Brody, Von Bertalanffy, Gompertz and Logistic nonlinear models, respectively. The data adjustment for weight-age of the animal provides information describing the growth curve and the future prognostic for animals managed under the same environmental situation. The properties of four nonlinear models were discussed concerning its applications in the fitting of growth curves in Nellore cattle production. In the period analyzed, Von Bertalanffy nonlinear model was indicated to estimate the body weight of Nellore cattle from Northern Brazil.
EMBARAZO GEMELAR CON UN óBITO: RESCATE MEDIANTE TRANSFUSIóN INTRAVASCULAR INTRAUTERINA
Andrés Poblete L,Jorge Carvajal C,Fidel Ferreira N,Luis Kushner D
Revista Chilena de Obstetricia y Ginecología , 2004,
Abstract: Se presenta el caso de un embarazo gemelar monocorial con un gemelo muerto a las 24 semanas de embarazo, manejado en forma expectante luego de efectuada una transfusión intrauterina de rescate. La paciente evolucionó con análisis de coagulación dentro de límites normales y pruebas de bienestar fetal satisfactorias. A las 35 semanas de embarazo se asistió un parto vaginal eutócico; el recién nacido, tuvo un examen físico y una ultrasonografía cerebral sin hallazgos patológicos al tercer día de vida We report a monochorionic twin pregnancy with a single intrauterine demise at 24 weeks, who required a rescue intrauterine trasfusion. At 35 weeks of pregnancy occurs an spontaneus vaginal delivery, the baby was healthy with a normal cerebral ultrasound scan
Diagnóstico de distrofia muscular de Duchenne mediante análisis del ácido desoxinucleotico y su aplicación en la prevención
Mayra Rodríguez Hernández,Raúl Ferreira Capote,Luis A. Gayol Mecías,Jorge Quintana Aguilar
Revista Cubana de Pediatr?-a , 1996,
Abstract: Se define una estrategia para la prevención en Cuba de la distrofia muscular de Duchenne (DMD), una de las enfermedades hereditarias letales más frecuentes, y se evalúan la factibilidad de su aplicación y los problemas que pudieran dificultar su implantación al nivel nacional. La estrategia se basa fundamentalmente en la necesidad de detectar las familias afectadas, la definición de las mujeres portadoras o en riesgo de serlo y el estudio molecular de los miembros de interés con anterioridad al ofrecimiento de los servicios de diagnóstico prenatal mediante análisis directo -detección de deleciones en el gen DMD mediante reacción en cadena de la polimerasa (PCR) o análisis indirecto- empleo de los marcadores denominados polimorfismos en la longitud de los fragmentos de restricción (RFLPs) en análisis de ligamento. Se concluye en que la aplicación de esta estrategia es factible y conveniente, pues permite ofrecer el diagnóstico prenatal al 75 % de las mujeres portadoras. Su eficiencia en la prevención del nacimiento de nuevos enfermos DMD se demuestra en 2 diagnósticos prenatales realizados, uno de los cuales detectó un embarazo afectado que fue interrumpido por solicitud de los padres. A strategy is defined for the prevention in Cuba of the Duchenne's muscular dystrophy (DMD), one of the most frequent lethal hereditary diseases, and the feasibility of its application, and the troubles that might difficult its implantation at a national level, are evaluated. This strategy is mainly based on the need of detecting the affected families, the definition of the carrier women, or the women at risk of being carriers, and the molecular study of the members of interest with anteriority to the offering of prenatal diagnosis services by direct analysis -detection of DMD gen deletions by (PCR) polymerase chain reaction, or indirect analysis-, use of the markers called polymorphisms in the length of the restriction fragments (RFLPs) in ligament analysis. It is concluded that the application of this strategy is feasible and convenient, since it allows offtering a prenatal diagnosis to the 75 % of the carrier women. Its efficiency in the prevention of births of new DMD ill newborns is showed in two prenatal diagnosis, one of which detected an affected pregnancy, interrupted due to the parents'solicitude.
Similarity of tree species in relation to distance in a rain forest in the National Forest Saracá-Taquera, Pará
Leandro Valle Ferreira,Rafael de Paiva Salom?o,Darley Calderaro Leal Matos,Jorge Luis Gavina Pereira
Boletim do Museu Paraense Emílio Goeldi : Ciências Naturais , 2011,
Abstract: The distribution of species in tropical regions is very complex. Two principal models are commonly employed toexplain species distributions: the Neutral Theory, and the Niche Theory. The former predicts that species coexistenceis the result of a balance between immigration and extinction, while the Niche Theory predicts that natural resourcesare used differently among species. Studies carried out in tropical regions have demonstrated that species similaritydecreases with geographical distance. However, few studies have been done comparing changes in species similaritywith geographical distance on a local scale, where physical variables such as topography, altitude and soil type do notvary. The objective of this study is to test differences in species similarity with geographical distance from botanical plotson an Amazonian plateau in the Sacará-Taquera National Forest Reserve, in Pará, Brazil. 179 tree plots (10 x 250 m)were systematically distributed across the entire extent of the plateau, with a distance between plots varying between200 meters and 9 km. A total of 631 species of tree were identified across all plots. The species area curve showeda clear tendency to asymptote. The estimated species richness (using first and second order Jackknife estimators)suggested 720 and 733 species respectively. The majority of species were present in low frequencies in the sampledplots, a pattern typical for the Amazon region. From the total of 631 species, 442 (70%) occurred in less than 10%of all parcels. There was a negative correlation between species similarity and plot distances. The lowest S rensensimilarity measures (ranging from 13% to 16%) were obtained from plots over 6 km apart, while the highest levels ofsimilarity (ranging from 55% to 62%) were found comparing plots less than one kilometer apart. In conclusion, thisstudy partially corroborates the Neutral Theory, where the similarity of species decreases with increasing geographicaldistances. However, the medium strength correlation between similarity and distance (r = -0.44) indicates that otherfactors are also important, and showing that the similarity of species in the tropical rain forests may be partly explainedby other biotic and abiotic factors, as well as geographical distance.
TENDêNCIAS GENéTICAS PARA CARACTERíSTICAS DE CRESCIMENTO EM REBANHOS NELORE CRIADOS NA REGI O DO TRóPICO úMIDO DO BRASIL
Thaymisson Santos de Lira,Leonardo de Sousa Pereira,Fernando Brito Lopes,Jorge Luis Ferreira
Ciência Animal Brasileira , 2013,
Abstract: (Co)variances, heritability and genetics change were estimated for weight at 120 (W120), 210 (W210), 365 (W365), 450 (W450) and 550 (W550 ) days of age in Nellore cattle from the Humid Tropical region of Brazil. A total of 65,876 records of animals born between 1993 to 2010 and raised on pasture were used. The (co)variance components were estimated by restricted maximum likelihood, and breeding values were predicted using an individual animal model. The genetic trends were plotted by linear regression of breeding values in the animals’ birth year. The heritability coefficients due to direct genetic effect were 0.37±0.019; 0.39±0.019; 0.41±0.013; 0.41±0.015 and 0.41±0.021 The maternal heritability estimates for W120 and W210 were 0.05±0.011 and 0.06±0.011, respectively. The genetic gains were 1.326, 2.014, 2.670, 3.056 and 3.128 kg/year for W120, W210, W365, W450 and W550, respectively. The estimates of genetic parameters and trends indicate the existence of genetic progress in pre- and post-weight traits from herds of Brazil Tropic Humid region.
EFEITOS DA INCLUS O OU N O DA COVARI NCIA GENéTICA DIRETA-MATERNAL NO MODELO E DOS VALORES REAIS DAS (CO)VARI NCIAS SOBRE SUAS ESTIMATIVAS PARA PESO à DESMAMA EM BOVINOS DE CORTE
JORGE LUIS FERREIRA,ARCADIO DE LOS REYES BORJAS,ROBERTO CARVALHEIRO,RAYSILDO BARBOSA L?BO
Ciência Animal Brasileira , 2011,
Abstract: This study aimed to compare estimates of (co)variances considering the effect of direct maternal genetic correlation (-0,50; -0,25; +0,25; +0,50); the ratios between the direct and maternal genetic variances (75:75; 50:100; 100:50) and two models which included (M2) or not (M1) the direct maternal genetic covariance. Stochastic simulation of twenty replicates of a closed and randomly mated herd of cattle was carried out for twenty years of selection. The base population was not related, nonselected and randomly sampled. (Co)variance estimates were obtained under single trait animal model using MTDFREML application. The model was not significant on estimates of maternal permanent environmental variance. The genetic direct-maternal correlation influenced all (co)variance estimates significantly (P<0,05). The ratios of genetic direct and maternalvariances significantly affected (P<0,05) only estimates of genetic direct and maternal variances. Regarding negative direct-maternal genetic correlation, M1 underestimated direct and maternal variances while overestimated both when that correlation was positive. Reliable and accurate (co)variance estimates for weaning weight in beef cattledepend on the adequacy of the model as well as their actual values.
Residual effect of lambdacyhalothrin on Triatoma infestans
Ferro, Esteban A.;Rojas de Arias, Antonieta;Ferreira, M. Elena;Simancas, Luis C.;Rios, Luis S.;Rosner, Jorge M.;
Memórias do Instituto Oswaldo Cruz , 1995, DOI: 10.1590/S0074-02761995000300019
Abstract: insecticidal residual effect and triatomine infestation rates in houses of a community fumigated with lambdcyhalothrin (icon) are reported. no mortality was observed in 5th-instar triatoma infestans nymphs in 72-hr exposure test on three different surfaces, one month after fumigation for a dose of 31.5 mg am/m2. however, during post-exposure observation a mortality of 60% was recorded for those insect exposed on sprayed woodboard. the results observed with mud-containing treated walls, were markedly poorer (0% of mortality). twelve month after spraying 40% of mortality was observed on first-instar t. infestans nymphs in 72-hr exposure test on woodboard, but lower mortality rates were observed in mud-containing materials. when the effect of deltamethrin (109 mg ai/m2) and lambdcyhalothrin (94 mg ai/m2) was compared, the former did not appear to be superior at similar loads. both have showed a mortality rate of 30% on 5th-instar t. infestans nymphs three months post-fumigation. the dose utilized in the field fumigation was enough to get a significant (p < 0.0001) control of triatomine domestic infestation, since it was sufficient to keep 95% of the houses uninfested throughout 21 months following treatment, when compared with baseline situation. a remarkable knock-down effect on adult and nymphs forms of the insect and a high in situ mortality were observed as a result of its application, even at very low doses.
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