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Electrochemical degradation of glyphosate formulations at DSA(A (R)) anodes in chloride medium: an AOX formation study

AQUINO NETO, S.; ANDRADE, A. R. De
Fonte: SPRINGER Publicador: SPRINGER
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
45.52%
The electrochemical degradation of different glyphosate herbicide formulations on RuO(2) and IrO(2) DSA(A (R)) electrodes is investigated. Parameters that could influence the formation of organochloride compounds during electrolysis are studied. The effects of chloride concentration, electrodic composition, current density, and electrolysis time are reported. The influence of the oxide composition on herbicide degradation seems to be almost insignificant; however, there is a straight relationship between anode composition and organic halides formation. Commercial herbicide formulations have lower degradation rates and lead to the formation of a larger quantities of organochloride compounds. In high chloride concentrations, there is a significant increase in organic mineralization, and the relationship between chloride concentration and organic halides formation is direct. Only in low chloride medium investigated the organochloride concentration obtained was below the limit values allowed in Brazil. The determination of organic halides absorbable (AOX) during electrolysis increases significantly with the applied current. Even during long-term electrolysis, a large amount of organochloride compounds is formed.; FAPESP; CNPq; MS-CAPES fellowship

Impaired phagocytosis by alveolar macrophages from diabetic rats is related to the deficient coupling of LTs to the Fe gamma R signaling cascade

FERRACINI, Matheus; MARTINS, Joilson O.; CAMPOS, Marina R. M.; ANGER, Denise B. C.; JANCAR, Sonia
Fonte: PERGAMON-ELSEVIER SCIENCE LTD Publicador: PERGAMON-ELSEVIER SCIENCE LTD
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
45.54%
Diabetic individuals are more susceptible to infections and this seems to be related to impaired phagocyte function. Alveolar macrophages (AMs) are the first barrier to prevent respiratory infections Leukotrienes (LTs) increase AM phagocytic activity via Fc gamma R. In this study, we compared AMs from diabetic and nondiabetic rats for phagocytosis via Fc gamma R and the roles of LTs and insulin Diabetes was induced in male Wistar rats by alloxan (42 mg/kg, i.v); macrophages were obtained by bronchoalveolar lavage and IgG-opsonised sheep red blood cells (IgG-SRBC) were used as targets. LTs were added to the AMs 5 min before the addition of IgG-SRBC. AMs were treated with a LT synthesis inhibitor (zileuton, 10 mu M), or antagonists of the LTB(4) receptor (CP105 696, 10 mu M) cys-LT receptor (MK571, 10 mu M), 30 or 20 min before the addition of IgG-SRBC, respectively. We found that the phagocytosis of IgG-SRBC by AMs from diabetic rats is impaired compared with non-diabetic rats. Treatment with the LT inhibitor/antagonists significantly reduced AM phagocytosis in non-diabetic but not diabetic rats. During the phagocytosis of IgG-SRBC LTB(4) and LTC(4) were produced by AMs from both groups. The addition of exogenous LTB(4) or LTD(4) potentiated phagocytosis similarly in both groups Phagocytosis was followed by the phosphorylation of PKC-delta. ERK and Akt This was reduced by zileuton treatment in AMs from non-diabetic but not diabetic rats The addition of insulin to AMs further increased the phagocytosis by increasing PKC-delta phosphorylation These results suggest that the impaired phagocytosis found in AMs from diabetic rats is related to a deficient coupling of LTs to the Fc gamma R signaling cascade and that insulin has a key role in this coupling An essential role for insulin in Innate immunity is suggested (C) 2010 Elsevier Ltd. All rights reserved.; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); FAPESP; CNPq; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

ELECTROCHEMICAL OXIDATION OF THE HERBICIDE TEBUTHIURON USING DSA (R)-TYPE ELECTRODE

Alves, Suellen A.; Ferreira, Tanare C. R.; Lanza, Marcos Roberto de Vasconcelos
Fonte: SOC BRASILEIRA QUIMICA; SAO PAULO Publicador: SOC BRASILEIRA QUIMICA; SAO PAULO
Tipo: Artigo de Revista Científica
POR
Relevância na Pesquisa
45.52%
ELECTROCHEMICAL OXIDATION OF THE HERBICIDE TEBUTHIURON USING DSA (R)-TYPE ELECTRODE. Tebuthiuron (TBH) is a herbicide widely used in different cultures and known for its toxic effects. Electrochemical methods are promising for removing pollutants such as pesticides. This study showed the degradation of TBH using a DSA (R) anode operated at current densities of 50 to 200 mA cm(-2). Removal presented pseudo-first order kinetics while high-pressure liquid chromatography (UV detection) showed two peaks, ascribed to degradation intermediates. The maximum percentage of total organic carbon removed was 12.9%. Ion chromatography revealed that higher concentrations of nitrate and nitrite ions formed with increasing current density.

Immunotherapy with the saponin enriched-Leishmune (R) vaccine versus immunochemotherapy in dogs with natural canine visceral leishmaniasis

Borja-Cabrera, G. P.; Santos, F. N.; Santos, F. B.; Trivellato, Fernando Antonio de A.; Kawasaki, Jarbas Kiyoshi A.; Costa, Andreia Cerqueira; Castro, Tatiana; Nogueira, F. S.; Moreira, M. A. B.; Luvizotto, M. C. R.; Palatnik, M.; Palatnik-de-Sousa, C. B.
Fonte: Elsevier B.V. Publicador: Elsevier B.V.
Tipo: Artigo de Revista Científica Formato: 597-603
ENG
Relevância na Pesquisa
45.56%
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Leishmune (R), the first licensed vaccine for prophylaxis against canine visceral leishmaniasis (CVL) and is also immunotherapeutic when used with double saponin adjuvant concentration. The Leishmune (R) therapeutic vaccine was assessed for immunotherapy (IT) in 31 infected dogs and for iminunochemotherapy (ICT) in combination with allopurinol or amphotericinB/allopurinol, in 35 dogs Compared to infected untreated control dogs, at month 3. both treatments increased the proportion of dogs showing intradermal response to Leishmania antigen to a similar extent (from 8 to 67%, in the IT and to 76%, in the ICT groups), and conversely reduced from 100 to 38% (IT) and to 18% (ICT) the proportion of symptomatic cases, from 54 to 12% (IT) and to 15% (ICT) the proportion of parasite evidence in lymph nodes and from 48 to 19% (IT) and 12% (ICT) the proportion of deaths, indicating that the immunotherapy with enriched-Leishmune (R) vaccine promotes the control of the clinical and parasitological signs of CVL rendering most dogs asymptomatic although PCR positive. By month 8, negative lymph node PCR results were obtained in 80% of the ICT-treated dogs, but only in 33% of the IT group (p = 0.0253)...

Particle creation in a f(R) theory with cosmological constraints

Pereira, S. H.; Holanda, R. F. L.
Fonte: Springer Publicador: Springer
Tipo: Artigo de Revista Científica Formato: 8
ENG
Relevância na Pesquisa
45.55%
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); In this paper we study the creation of super-massive real scalar particles in the framework of a f (R) = R - beta/R-n modified gravity theory, with parameters constrained by observational data. The analysis is restrict to a homogeneous and isotropic flat and radiation dominated universe. We compare the results to the standard Einstein gravity with cosmological constant (Lambda CDM model), and we show that the total number density of created particles in the f (R) model is very close to the standard case. Another interesting result is that the spectrum of created particles is beta independent at early times.

Comparative evaluation of the DPP (R) CVL rapid test for canine serodiagnosis in area of visceral leishmaniasis

Laurenti, M. D.; Santana Leandro, M. V. de; Tomokane, T. Y.; De Lucca, H. R. L.; Aschar, M.; Souza, C. S. F.; Silva, R. M.; Marcondes, Mary; Matta, V. L. R. da
Fonte: Elsevier B.V. Publicador: Elsevier B.V.
Tipo: Artigo de Revista Científica Formato: 444-450
ENG
Relevância na Pesquisa
45.6%
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Processo FAPESP: 04/07965-2; Processo FAPESP: 09/54533-4; We investigated the performance of the DPP (R) canine visceral leishmaniasis (CVL) rapid test, a novel immunochromatographic assay launched by BioManguinhos (Brazil), which was recently included in the new Brazilian protocol for screening CVL in serological surveys. The present study compared the DPP (R) with the ELISA and IFA produced by BioManguinhos (Brazil) both with L. major-like antigens and with in-house tests using Leishmania infantum chagasi (in-house ELISA and in-house IFA). We analyzed the sera from clinically symptomatic (n = 47) and asymptomatic (n = 38) infected dogs from an endemic area of CVL, as well as from healthy (n = 18) dogs, in addition to the sera of dogs (n = 81) infected with other pathogens. The DPP (R) and the in-house ELISA showed a sensitivity of 90.6% and 94.1%, respectively, and specificity of 95.1% and 97.5%, respectively, and both presented cross-reactivity only with the sera of dogs with babesiosis, 44% for the DPP (R) and 22% for the in-house ELISA. The clinical groups were detected equally by the two assays. The ELISA BioManguinhos, IFA BioManguinhos, and in house-IFA showed a good sensitivity...

Decolourisation of Remazol Brilliant Blue R via a novel Bjerkandera sp. strain

Moreira, Patrícia R.; Almeida-Vara, E.; Sena-Martins, G.; Polónia, I.; Malcata, F. Xavier; Duarte, J. Cardoso
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica
Publicado em //2001 ENG
Relevância na Pesquisa
45.52%
A novel strain of Bjerkandera sp. (B33/3), with particularly high decolourisation activities upon Poly R-478 and Remazol Brilliant Blue R (RBBR) dyes, was isolated. The role of the ligninolytic extracellular enzymes produced by this strain on decolourisation of RBBR was studied in some depth. The basis of decolourisation is an enzyme-mediated process, in which the main enzyme responsible is a recently described peroxidase with capacity for oxidation of manganese, as well as veratryl alcohol and 2,6-dimethoxyphenol in a manganese-independent reaction.

Relationships between the perceived quality of life and the personality styles measured with the The Millon Index of Personality Styles Revised (MIPS-R)

Pires, Rute; Silva, Danilo R.; Ferreira, Ana Sousa; Fagulha, Teresa
Fonte: Universidade de Lisboa Publicador: Universidade de Lisboa
Tipo: Conferência ou Objeto de Conferência
Publicado em /07/2008 ENG
Relevância na Pesquisa
45.54%
This exploratory study aims to determine whether the personality styles measured with the Portuguese adaptation of Millon Index of Personality Styles Revised, MIPS-R affect the perceived quality of life. The MIPS-R is a theory-based inventory that measures 24 personality styles in normally functioning adults. Life satisfaction was measured with the Portuguese version of the Quality of Life Inventory, QOLI (Fagulha, Duarte & Miranda, 2000). It refers to a person’s subjective evaluation of the degree to which his/her most important needs, goals and wishes have been fulfilled. This study was carried out with a sample of 43 college students, 36 females (age mean = 19,7; SD = 3,1) and 7 males (age mean = 27,4; SD = 11,4). Based on the participants’ overall life satisfaction score three groups were defined: (1) Low/Very Low quality of life, (2) Average quality of life, (3) High quality of life. Discriminant Factor Analysis (DFA) and the Kruskal-Wallis Test were used to identify the styles that most differentiate these groups and to compare each style in the groups. The Other-Nurturing style is the one that best differentiates the groups. DFA results will be further exploited. Considering the Kruskal-Wallis Test, differences are observed in the Pleasure-Enhancing (p=.006)...

Social network analysis applied to knowledge creation and transfer in the portuguese agricultural R&D field: an exploratory study

Neto, Miguel de Castro; Correia, Ana Maria R.; Pinto, Pedro; Aguiar, José
Fonte: Universidade Nova de Lisboa Publicador: Universidade Nova de Lisboa
Tipo: Conferência ou Objeto de Conferência
Publicado em //2008 ENG
Relevância na Pesquisa
45.52%
Paper presented at the 9th European Conference on Knowledge Management, Southampton Solent University, Southampton, UK, 4-5 Sep. 2008. URL: http://academic-conferences.org/eckm/eckm2008/eckm08-home.htm; There is growing interest in the nature and scale of scientific collaboration regarding the processes involved with knowledge creation and sharing. One of the possible approaches to developing metrics for this area of research is based on the idea that co-authorship creates a social network of researchers. We present an exploratory study using a social network approach to examine the structure and pattern of knowledge creation and sharing within a Portuguese research community, working in the agricultural field, over the last seven years. The members of this community are with the Instituto Nacional da Investigação Agrária (INIA) which recently became part of a newly created R&D State Laboratory, Instituto Nacional dos Recursos Biológicos (INRB), under the umbrella of the Portuguese Ministry of Agriculture Rural Development and Fisheries. The social network analysis used data from an information system containing the results from all the scientific activities developed in the last seven years by the research community working in INIA. The information system was the major result of AGRO 444 - Development of an Information System for Knowledge and Innovation Discovery and Diffusion in the Agro-Rural Sector...

A erosividade das chuvas em Fortaleza (CE): II - correlação com o coeficiente de chuva e atualização do fator R no período de 1962 a 2000

Silva,J. R. C.; Dias,A. S.
Fonte: Sociedade Brasileira de Ciência do Solo Publicador: Sociedade Brasileira de Ciência do Solo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/04/2003 PT
Relevância na Pesquisa
45.54%
A correlação entre o índice de erosividade EI30 e o coeficiente de chuva (Rc) no período de 1962 a 1981, em Fortaleza (CE), foi avaliada com o objetivo não só de analisar a viabilidade de utilização do Rc na atualização dos valores da erosividade no período de 1982 a 2000 nesse município, mas também de identificar uma equação que pudesse ser empregada para estimar a erosividade em outras localidades da zona litorânea do estado do Ceará onde não existem diagramas de pluviógrafos. Um alto coeficiente de correlação (r = 0,99**) foi encontrado entre os valores mensais do índice EI30 e o Rc. O melhor ajuste na regressão entre essas variáveis foi encontrado na equação EI30 = 73,989Rc0,7387. O emprego dessa equação permitiu atualizar o fator R em Fortaleza no período de 1962 a 2000, estendendo, dessa forma, a computação de dados de erosividade para uma série contínua de 39 anos. O fator R atualizado para essa série foi de 6.900 MJ mm (ha h ano)-1 , com 69,5 % desse valor anual distribuído nos meses de janeiro a abril. Este trabalho também forneceu informações úteis para planejar o controle da erosão e para estimar, com precisão razoável, a erosividade em outros locais do litoral cearense, desprovidos de diagramas de pluviógrafos.

A simple HPLC-fluorescence method for the measurement of R,S-sotalol in the plasma of patients with life-threatening cardiac arrhythmias

Santos,S.R.; Papini,O.; Omosako,C.E.; Pereira,M.D.; Quintavalle,T.B.G.; Riccio,M.F.; Kurata,A.; Pereira,V.A.; Di-Pietro,G.; Della-Paschoa,O.E.; Danhof,M.; Da-Luz,P.L.
Fonte: Associação Brasileira de Divulgação Científica Publicador: Associação Brasileira de Divulgação Científica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/02/2000 EN
Relevância na Pesquisa
45.55%
R,S-sotalol, a ß-blocker drug with class III antiarrhythmic properties, is prescribed to patients with ventricular, atrial and supraventricular arrhythmias. A simple and sensitive method based on HPLC-fluorescence is described for the quantification of R,S-sotalol racemate in 500 µl of plasma. R,S-sotalol and its internal standard (atenolol) were eluted after 5.9 and 8.5 min, respectively, from a 4-micron C18 reverse-phase column using a mobile phase consisting of 80 mM KH2PO4, pH 4.6, and acetonitrile (95:5, v/v) at a flow rate of 0.5 ml/min with detection at lex = 235 nm and lem = 310 nm, respectively. This method, validated on the basis of R,S-sotalol measurements in spiked blank plasma, presented 20 ng/ml sensitivity, 20-10,000 ng/ml linearity, and 2.9 and 4.8% intra- and interassay precision, respectively. Plasma sotalol concentrations were determined by applying this method to investigate five high-risk patients with atrial fibrillation admitted to the Emergency Service of the Medical School Hospital, who received sotalol, 160 mg po, as loading dose. Blood samples were collected from a peripheral vein at zero, 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0, 12.0 and 24.0 h after drug administration. A two-compartment open model was applied. Data obtained...

Utililização de resíduos de construção e de demolição reciclados (rcd-r) como condicionadores de solo.

LASSO, P. R. O.; GUANOR, J. R. do; CARDOSO, R. D.; BERNARDI, A. C. de C.; VAZ, C. M. P.; OLIVEIRA, C. R. de; BACCHI, O. O. S.
Fonte: In: WORKSHOP DA REDE AGRORECICLA CARACTERIZAÇÃO, APROVEITAMENTO E GERAÇÃO DE NOVOS PRODUTOS DE RESÍDUOS AGRÍCOLAS, AGROINDUSTRIAIS E URBANOS, 2010, São Carlos, SP. Anais... São Carlos; Embrapa Instrumentação Agropecuária, 2010. Publicador: In: WORKSHOP DA REDE AGRORECICLA CARACTERIZAÇÃO, APROVEITAMENTO E GERAÇÃO DE NOVOS PRODUTOS DE RESÍDUOS AGRÍCOLAS, AGROINDUSTRIAIS E URBANOS, 2010, São Carlos, SP. Anais... São Carlos; Embrapa Instrumentação Agropecuária, 2010.
Tipo: Artigo em anais de congresso (ALICE)
PT_BR
Relevância na Pesquisa
45.56%
Os resíduos de construção civil e demolição (RCD) são graves problemas ambientais, pois representam mais de 50% do resíduo sólido gerado nos médios e grandes centros urbanos. Por outro lado, solos arenosos são encontrados em quase todo o território nacional e apresentam baixa capacidade de retenção de água e grandes perdas de nutrientes por percolação que proporcionam baixas produtividades agrícolas. Este estudo teve o objetivo de avaliar a viabilidade da utilização do RCD-R classe A de origem cerâmica (chamote) como condicionador para melhoria da capacidade de retenção de água do solo. Os resultados obtidos sugerem que este RCD-R tem potencial para ser utilizado como condicionador de solos.; 2010

Utililização de resíduos de construção e de demolição reciclados (RCD-R) como corretivos da acidez do solo

LASSO, P. R. O.; GUANOR, J. R.; CARDOSO, R. D.; BERNARDI, A. C. de C.; VAZ, C. M. P.; OLIVEIRA, C. R. de; BACCHI, O. O. S.
Fonte: In: WORKSHOP DA REDE AGRORECICLA CARACTERIZAÇÃO, APROVEITAMENTO E GERAÇÃO DE NOVOS PRODUTOS DE RESÍDUOS AGRÍCOLAS, AGROINDUSTRIAIS E URBANOS, 2010, São Carlos, SP. Anais... São Carlos; Embrapa Instrumentação Agropecuária, 2010. Publicador: In: WORKSHOP DA REDE AGRORECICLA CARACTERIZAÇÃO, APROVEITAMENTO E GERAÇÃO DE NOVOS PRODUTOS DE RESÍDUOS AGRÍCOLAS, AGROINDUSTRIAIS E URBANOS, 2010, São Carlos, SP. Anais... São Carlos; Embrapa Instrumentação Agropecuária, 2010.
Tipo: Artigo em anais de congresso (ALICE)
PT_BR
Relevância na Pesquisa
45.56%
Os resíduos de construção civil e demolição (RCD) são graves problemas ambientais, pois representam mais de 50% do resíduo sólido gerado nos médios e grandes centros urbanos. Por outro lado, a acidez do solo é um dos principais fatores capazes de reduzir o potencial produtivo dos solos brasileiros, pois provoca a diminuição da disponibilidade de nutrientes para as plantas. Este estudo teve o objetivo de avaliar a viabilidade da utilização do RCD-R classe A, como corretivo de acidez do solo, tendo como indicador a produção de matéria seca da alfafa (Medicago sativa cv. Crioula). Os resultados obtidos sugerem que o RCD-R cinza (origem de concreto) tem potencial para ser utilizado como corretivo da acidez de solos.; 2010

R??dio ?? preven????o

Empresa Brasileira de Comunica????o (Radiobr??s). R??dio Nacional da Amaz??nia
Fonte: Escola Nacional de Administra????o P??blica (ENAP) Publicador: Escola Nacional de Administra????o P??blica (ENAP)
Tipo: Relato de Experi??ncia
IDIOMA::PORTUGU??S:PORTUGU??S:PT
Relevância na Pesquisa
45.55%
A popula????o da Amaz??nia, por causa do tamanho da regi??o, sofre por falta de atendimento m??dico e desinforma????o. Doen??as f??ceis de serem curadas tornam-se epidemias porque a popula????o n??o tem ou n??o sabe como trat??-las. Com a inten????o de diminuir esse problema a R??dio Nacional da Amaz??nia fez parceira com a Funda????o Nacional de Sa??de visando usar a informa????o, atrav??s do r??dio, como meio de preven????o. A parceria deu certo. Desde 1990, entrevistas e informa????es s??o passadas ?? popula????o amaz??nica com sucesso. Hoje as doen??as s??o mais conhecidas e a popula????o j?? sabe como se prevenir contra elas. As campanhas divulgadas atrav??s do r??dio s??o sempre um sucesso e pode-se dizer que esta parceria melhorou os servi??os da r??dio nacional da amaz??nia, facilitou o trabalho da funda????o nacional de sa??de e, especialmente, ajudou o povo da regi??o amaz??nica. Os problemas n??o acabaram, mas foram reduzidos consideravelmente; N??mero de p??ginas: 4 p.; Classifica????o::Administra????o P??blica. Teoria Geral da Administra????o::Desenvolvimento Gerencial::Inova????o; Iniciativa premiada no 3?? Concurso Inova????o na Gest??o P??blica Federal sob responsabilidade de Artemisa Azevedo; A????es premiadas no 3?? Concurso Inova????o na Gest??o P??blica Federal - Pr??mio H??lio Beltr??o ??? 1998; Empresa Brasil de Comunica????o S/A (EBC)...

Preparaci??n de comprimidos de desintegraci??n r??pida de clorhidrato de ondansetr??n mediante el m??todo de compresi??n directa

Sutariya, V.B.; Mashru, R.C.; Sankalia, M.G.; Sankalia, J.M.
Fonte: Universidad de Granada, Facultad de Farmacia Publicador: Universidad de Granada, Facultad de Farmacia
Tipo: Artigo de Revista Científica
ENG; SPA
Relevância na Pesquisa
45.54%
Para elaborar comprimidos de desintegraci??n r??pida con un contenido de 8 mg de clorhidrato de ondansetr??n, con sufi ciente integridad mec??nica y buen sabor, se prepar?? una formulaci??n de celulosa microcristalina (CM), lactosa anhidra, manitol y croscarmelosa. Los comprimidos se elaboraron mediante el m??todo de compresi??n directa. Se determinaron propiedades tales como la resistencia a la fractura, el tiempo de desintegraci??n, el tiempo de humidifi caci??n y la friabilidad. Para la preparaci??n de los primeros lotes se utiliz?? el dise??o experimental de compuesto de segundo orden esf??rico de dos factores, y para su optimizaci??n se emple?? la funci??n de deseabilidad. Para la preparaci??n de los comprimidos de desintegraci??n r??pida se utiliz?? un dise??o en ret??culos simple con restricciones en la proporci??n de los excipientes. En un dise??o posterior, se seleccionaron como variables independientes la resistencia a la fractura y la concentraci??n de celulosa microcristalina, de lactosa anhidra y de manitol. Para relacionar las variables independientes con la resistencia a la fractura y el tiempo de desintegraci??n, se utilizaron ecuaciones matem??ticas y representaciones gr??fi cas. Adem??s, para optimizar la formulaci??n...

Versões Alternativas do Subteste Memória Lógica da WMS-R: Análise de Desempenho de uma Amostra Saudável da Cidade de São Paulo

Martins,Marjorie R.; Bolognani,Silvia Adriana Prado; Pompéia,Sabine; Bueno,Orlando F. A.; Miranda,Mônica Carolina
Fonte: Curso de Pós-Graduação em Psicologia da Universidade Federal do Rio Grande do Sul Publicador: Curso de Pós-Graduação em Psicologia da Universidade Federal do Rio Grande do Sul
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2015 PT
Relevância na Pesquisa
45.54%
O teste Memória Lógica da Wechsler Memory Scale - Revised (WMS-R) é amplamente utilizado na prática clínica como instrumento de avaliação da memória verbal. O objetivo deste estudo foi analisar as propriedades psicométricas iniciais de versões alternativas das histórias traduzidas e livremente adaptadas da WMS-R empregadas no Brasil: três histórias equiparáveis à história Ana Soares e três à de Roberto Mota. A amostra foi constituída de 655 universitários, com idades entre 18 e 35 anos. Foi solicitada a recordação livre imediata e tardia (após 30 min) de cada história, original e alternativas. A análise de equivalência entre a recordação imediata e tardia das histórias alternativas e originais mostrou que cinco histórias foram memorizadas de forma equiparável às histórias originais se aplicadas individualmente. A recordação de três pares dessas histórias alternativas também foi equivalente à recordação do par original. Uma análise utilizando a Teoria de Resposta ao Item apontou os itens com melhor índice discriminativo. Assim...

Cross-cultural translation of the INSPIRIT-R for Brazil and its applicability among epilepsy patients

Veronez,I S; Bicalho,M A H; Claudino,L S; Walz,R; Lin,K
Fonte: Academia Brasileira de Neurologia - ABNEURO Publicador: Academia Brasileira de Neurologia - ABNEURO
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2011 EN
Relevância na Pesquisa
45.52%
OBJECTIVE: To describe the cross-cultural adaptation of the INSPIRIT-R instrument for evaluation of religious and spiritual experiences into a Brazilian Portuguese version and its applicability among epileptic patients. METHOD: After the translation and back-translation phases, a multidisciplinary committee compared the back-translation with the original text in order to evaluate its content, comprehensibility, conceptual equivalence, cultural and contextual adjustment for Brazilian population. Lastly, the final version was tested on 50 long-term followed-up outpatients with a confirmed diagnosis of epilepsy in Florianópolis, SC, Brazil. RESULTS: The patients' mean age was 33.7 years (18-55) and 26 (52%) were women. They had attended school for a mean of 8.0 years (3-17) years. Most of them (80%) were Catholics and 82% had a confirmed diagnosis of temporal lobe epilepsy. In the final Portuguese version, questions 3, 7C and 7E required slight modifications, along with the layout of question 7. CONCLUSION: The Brazilian Portuguese version of the INSPIRIT-R instrument was easily understood by most of the patients, after minimal modifications.

Training-related changes in the R-R interval at the onset of passive movements in humans

Vianna,L.C.; Ricardo,D.R.; Araújo,C.G.S.
Fonte: Associação Brasileira de Divulgação Científica Publicador: Associação Brasileira de Divulgação Científica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2008 EN
Relevância na Pesquisa
45.59%
The aim of the present study was to determine whether training-related alterations in muscle mechanoreflex activation affect cardiac vagal withdrawal at the onset of exercise. Eighteen male volunteers divided into 9 controls (26 ± 1.9 years) and 9 racket players (25 ± 1.9 years) performed 10 s of voluntary and passive movement characterized by the wrist flexion of their dominant and non-dominant limbs. The respiratory cycle was divided into four phases and the phase 4 R-R interval was measured before and immediately following the initiation of either voluntary or passive movement. At the onset of voluntary exercise, the decrease in R-R interval was similar between dominant and non-dominant forearms in both controls (166 ± 20 vs 180 ± 34 ms, respectively; P > 0.05) and racket players (202 ± 29 vs 201 ± 31 ms, respectively; P > 0.05). Following passive movement, the non-dominant forearm of racket players elicited greater changes than the dominant forearm (129 ± 30 vs 77 ± 17 ms; P < 0.05), as well as both the dominant (54 ± 20 ms; P < 0.05) and non-dominant (59 ± 14 ms; P < 0.05) forearms of control subjects. In contrast, changes in R-R interval elicited by the racket players' dominant forearm were similar to that observed in the control group...

The K-band intensity profile of R Leonis probed by VLTI/VINCI

Fedele, D; Wittkowski, M; Paresce, F; Scholz, M; Wood, Peter R; Ciroi, S
Fonte: Springer Publicador: Springer
Tipo: Artigo de Revista Científica
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We present near-infrared K-band interferometric measurements of the Mira star R Leonis obtained in April 2001 and January 2002 with the VLTI, the commissioning instrument VINCI, and the two test siderostats. These epochs correspond to near-maximum stellar variability phases ∼0.08 and ∼1.02 (one cycle later), respectively. The April 2001 data cover a range of spatial frequencies (31-35 cycles/arcsecond) within the first lobe of the visibility function. These measurements indicate a center-to-limb intensity variation (CLV) that is clearly different from a uniform disk (UD) intensity profile. We show that these measured visibility values are consistent with predictions from recent self-excited dynamic Mira model atmospheres that include molecular shells close to continuum-forming layers. We derive high-precision Rosseland diameters of 28.5 ± 0.4 mas and 26.2 ± 0.8 mas for the April 2001 and January 2002 data, respectively. Together with literature estimates of the distance and the bolometric flux, these values correspond to linear radii of 350-40+50 R⊙ and to effective temperatures of 2930 ± 270 K and 3080 ± 310 K, respectively.

Electrochemical Determination of Cibacron Red FN-R at Glassy Carbon Electrode

Radi,A.-E.; Mostafa,M.; Hegazy,T.; Elshafey,R.
Fonte: Sociedade Portuguesa de Electroquímica Publicador: Sociedade Portuguesa de Electroquímica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2010 EN
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The electrochemical oxidation of cibacron red FN-R (CB) has been studied by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) at a glassy carbon electrode (GCE) in phosphate buffer solutions of pH (2.54-11.79) used as supporting electrolytes. The voltammetric behaviour showed that the electro-oxidation process gave rise to a single peak at 0.692 V vs. Ag-AgCl using DPV in phosphate buffer solution at (pH 3.34). The oxidation process was shown to be irreversible and adsorption-controlled. An analytical method was developed for the determination of cibacron red FN-R in phosphate buffer solution at (pH 3.34) as supporting electrolyte. The anodic peak current varied linearly with cibacron red FN-R concentration in the range 2.0´10−6 mol L-1 to 1.0´10−5 mol L−1 of cibacron red FN-R with a limit of detection (LOD) of 4.49´10−7 mol L−1 and limit of quantification (LOQ) of 1.49´10-6 mol L−1. Validation parameters, such as accuracy, precision and recovery were evaluated. The proposed method was successfully applied to the determination of cibacron red FN-R in synthetic industrial effluents and the analytical results compared well with those obtained by the spectrophotometric method.