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Search Results: 1 - 10 of 27016 matches for " MARCO; TORRES "
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Os Significados da Homossexualidade no Discurso Moral-religioso da Igreja Católica em Condi es Históricas e Contextuais Específicas
Marco Ant?nio Torres
REVER : Revista de Estudos da Religi?o , 2006,
Abstract: O presente texto se apóia em uma disserta o de mestrado na qual o autor discutiu a constitui o de diferentes significados da homossexualidade no discurso oficial da Igreja Católica. Neste artigo ele estuda o desenvolvimento histórico que foi conduzindo o discurso moral-religioso da Igreja a posi es diferenciadas. O autor, neste texto, está primariamente interessado em entender como a fala hierárquica age como instancia mantenedora e articuladora da hegemonia doutrinal católica que se constituiu nos anos posteriores ao Concílio Vaticano II. Do ponto de vista teórico, a posi o do autor se apóia na análise do discurso proposta por Ernesto Laclau e Chantal Mouffe. Outra preocupa o sua é de compreender como os padres de tendência homossexual lidam com sua tendência, negociando de forma nova com o discurso e as normas oficiais da Igreja.
Antagonismos entre o magistério católico e as conquistas de mulheres católicas a partir da teoria do discurso
Marco Antonio Torres
Revista Mal-estar e Subjetividade , 2005,
Abstract: The present article is a theoretical study that intends to demonstrate the interaction between contemporary Catholic1 teaching and Catholic women, regarding to the understanding on the non permission of the priesthood to women. This work deals with the hypothesis that the discourse, of the teaching promotes the women′s discrimination and being Brazil a country with high number of Catholics, the cultural-societal sphere is constantly informed for the religious discourse. Starting from the feminist positions among Catholic, a certain antagonism appears to the official positions of the Church 2. However, the centralizing model of this institution has used of strategies that seek to maintain the hegemony of the Christianity′s male-domination. Starting from John Paul II letter, ORDINATIO SACERDOTALIS, on the exclusiveness men′s priesthood , and feminist′s positions of the Latin-American t theology, I intend to signal some articulations between the individual and the collective in the Catholic woman′s identity and some obstacles that they face for to enjoy your citizenship inside of the Catholicism.
Ca-alginate spheres behavior in presence of some solvents and water-solvent mixtures  [PDF]
Luis G. Torres, Angelica Velasquez, Marco A. Brito-Arias
Advances in Bioscience and Biotechnology (ABB) , 2011, DOI: 10.4236/abb.2011.21002
Abstract: Immobilization systems more frequently used are calcium alginate spheres. These biocatalysts have many potential applications in the immobilization of enzymes, prokaryotic cells, vegetal and animal cells, algae, organelles and mixtures of these living components. Other applications of immobilized cells imply the use of non aqueous systems. Some bioconversions are carried out in the presence of solvents such as hexane acetone or acetonitrile, or mixtures water-solvents. The aim of this work was to investigate the behaviour of Ca-alginate spheres when put in contact with different solvents (water, diesel, ethanol, methanol, acetone, n-hexane, isopropyl alcohol, THF, acetonitrile, and toluene), or solvent-water mixtures (i.e., ethanol-water), regarding the resistance of the alginate spheres after days of contact. Calcium alginate particles suffered different damages, depending on the solvent they were put in contact. Water did not damaged the Ca-alginate structure with or without Ca present. On the other hand different solvents lost a proportion of volume, i.e., n-hexane (16%), methanol (19%), ethanol (19.5%), toluene (22%), diesel (34%), acetone (765), isopropyl alcohol (80%), THF and acetonitrile (total loss, total destruction). Nor the dielectric constant nor the polarity indexes were capable of explaining the difference on the volume loss or total sphere destruction, except for water-ethanol mixtures.
Biodeterioro en rolletes de Pinus radiata preservados con sal CCA frente al ataque de hongos de pudrición parda
Torres,Marco; Figueroa,Víctor; Vives,Isabel;
Bosque (Valdivia) , 2011, DOI: 10.4067/S0717-92002011000300013
Abstract: in chile, pinus radiata wood has been classified as not durable according to chilean standards nch789. to increase its durability it is required to impregnate it with type cca (copper, chromium, arsenic) soluble salts. the aim of this study was to analyse the effectiveness of the impregnation of five p. radiata round wood treated with this salt. from each 260 cm long round wood a disc was removed from one end, which withdrew a central strip that provided the samples for determination of preservative retention by calcinations and bio-deterioration through accelerated laboratory tests using two brown rot fungi, gloeophylum trabeum and poria placenta. it was observed, in the five samples of round wood, that the penetration of the preservative was irregular and pond shaped; covering between 40 to 80 % of the total area, with little consistency in the retention and focusing on the periphery of discs. the preservative salt retention reached 4.3 to 10.5 kg m-3 on discs periphery, while in the inner zone, close to the pith, the retentions were 0.3 to 3.1 kg m-3. the specimens from the periphery of the round wood subjected to attack by xylophages fungi showed a mass loss of 1 %, classifying the impregnated cca wood of p. radiata as highly resistant and in the inner zone, close to the pith, mass loss reached 26 %, moderately resistant.
Análisis químico cuantitativo y condiciones de pulpaje kraft de colihue: Parte I
MARIANI A,SILVANA; TORRES U,MARCO;
Bosque (Valdivia) , 2004, DOI: 10.4067/S0717-92002004000100010
Abstract: the pulp mass capability of the chilean bamboo, colihue (chusquea culeou e. desv.), was analyzed. culms (3 m long), which were free from branches and had diameters between 13 and 36 mm, were collected in farms from southern chile (x region) for this purpose. chemical, pulp and black liquor analyses were carried out using technical association pulp and paper industry (tappi) rules. packs of culms were taken to industrial chippers that specialized in timber-yielding species. the chips were subjected to a kraft process, with a varied alkali charge and a permanence time at 170 °c. the rest of the pulp conditions were kept constant. a high content of total extractable chemicals, soluble in 1% soda and ash, had values that clearly exceeded those found in timber-yielding species. on the other hand, the content of holocellulose and lignin were similar to those of hardwood species. colihue chips produced by the industrial chipper showed granulometry according to that permitted by kraft pulp. the active alkali charge inside ranged from 12% to 16% o.d. wood and showed screened yields between 42.4% and 47.5% o.d. wood. rejections ranged from 1.7% and 8.9% o.d. wood, with kappa numbers between 8.8 and 18.8. the increment in the active alkali charges directly resulted in a decrease in rejection and an increase in delignification. colihue submitted to the kraft process exhibited very good pulp characteristics.
O conhecimento do consumidor sobre pre?os: um exame de produtos de oito categorias de bens duráveis
Silva, Marco Ant?nio;Urdan, André Torres;
RAM. Revista de Administra??o Mackenzie , 2008, DOI: 10.1590/S1678-69712008000200005
Abstract: this paper deals with subject that merits further academic investigation: the consumer price knowledge. the purposes of this study were to describe the consumer price knowledge variation amongst products of distinct categories and verify the relation between it and the determinants involvement with the product, advertising exposure and use of price-quality. based on a descriptive design, a survey with 200 hundreds consumers was conducted. qui-square test and multiple regression analysis were performed. at first, the consumer price knowledge in eight products categories revealed significant variations. this analysis also showed that only one third of the consumers provided products price estimates accurately, indicating limited knowledge. in addition, the results pointed that although the relation between consumer price knowledge and its potential determinants appeared for some products, it is tenuous. this paper brings interesting academic implications and marketing practices directions.
A aleatoriedade do passeio na Bovespa: testando a eficiência do mercado acionário brasileiro
Torres, Ricardo;Bonomo, Marco;Fernandes, Cristiano;
Revista Brasileira de Economia , 2002, DOI: 10.1590/S0034-71402002000200002
Abstract: this paper tests two versions of the random walk model for portfolios of brazilian stocks. it found evidence of persistency in daily and weekly returns, rejecting the random walk models. those evidences were weaker in recent periods. the paper also found a monday effect, and other seasonality effects for monthly returns. additionally there were asymmetric first-order cross-correlations on portfolios ranked by size, with large firm returns predicting small firm returns. nonlinearities in returns were also detected at several time horizons.
O conhecimento do consumidor sobre pre os: um exame de produtos de oito categorias de bens duráveis.
Marco Ant?nio Silva,André Torres Urdan
Revista de Administra??o Mackenzie , 2008,
Abstract: Este artigo trata de tema pouco abordado no ambito acadêmico estrangeiro e, mais ainda, no brasileiro: o conhecimento do consumidor sobre pre os. Os objetivos foram descrever o conhecimento do consumidor sobre pre os de produtos de distintas categorias de bens duráveis e avaliar os fatores envolvimento com o produto, exposi o à propaganda e o uso da rela o pre o-qualidade como seus potenciais determinantes. Num esquema descritivo, um levantamento com duzentos consumidores foi realizado. Aplicaram-se testes do qui-quadrado e análises de regress o múltipla. Os dados revelaram significativas varia es no conhecimento do consumidor sobre pre os de produtos de oito categorias. Apenas um ter o dos consumidores forneceu estimativas de pre o para os produtos com razoável precis o, demonstrando que tal conhecimento é limitado. Algumas das rela es entre o conhecimento do consumidor sobre pre os e seus potenciais determinantes se mostraram significantes, mas tênues no poder de explica o. A pesquisa traz interessantes implica es acadêmicas e direcionamentos para a prática de marketing.
A aleatoriedade do passeio na Bovespa: testando a eficiência do mercado acionário brasileiro
Torres Ricardo,Bonomo Marco,Fernandes Cristiano
Revista Brasileira de Economia , 2002,
Abstract: Este artigo testa duas vers es do modelo de passeio aleatório para os pre os de carteiras de a es no mercado brasileiro. Evidências contrárias a tal modelo foram observadas nos horizontes diário e semanal, caracterizados por persistência. As evidências foram mais fracas em períodos mais recentes. Foram também encontradas sazonalidades diárias, incluindo o efeito segunda-feira, e mensais. Adicionalmente, foi observado um padr o de assimetria de autocorrela es cruzadas de primeira ordem entre os retornos de carteiras de firmas agrupadas segundo seu tamanho, indicando, no caso de retornos diários e semanais, que retornos de firmas grandes ajudam a prever retornos de firmas pequenas. Evidências de n o-linearidades nos retornos foram observadas em diversos horizontes de tempo.
Biodeterioro en rolletes de Pinus radiata preservados con sal CCA frente al ataque de hongos de pudrición parda Bio-deterioration of Pinus radiata round wood preserved with CCA salt against brown rot fungi
Marco Torres,Víctor Figueroa,Isabel Vives
Bosque (Valdivia) , 2011,
Abstract: En Chile la madera de Pinus radiata ha sido clasificada como no durable según la norma chilena NCh789. Para aumentar su durabilidad se puede impregnar con sales hidrosolubles tipo CCA (cobre, cromo, arsénico). El objetivo del estudio fue analizar la efectividad de la impregnación de rolletes de P. radiata tratados con esta sal ante el biodeterioro. De cinco rolletes de 260 cm de largo se extrajo un trozo a 50 cm desde un extremo, del cual se retiró un listón central que proporcionó las probetas. Se determinó la retención del preservante mediante calcinación y el biodeterioro a través de ensayos acelerados de laboratorio, utilizando dos hongos de pudrición parda, Gloeophylum trabeum y Poria placenta. La penetración del preservante fue irregular y en forma de lagunas, cubriendo entre 40 y 80 % del área total, con poca uniformidad en la retención, concentrándose esta en la periferia de los rolletes. La retención de la sal preservante en la periferia alcanzó 4,3 a 10,5 kg m-3, mientras que en la zona interna, cercana a la médula, fue de 0,3 a 3,1 kg m-3. Las probetas de la periferia de los rolletes sometidas al ataque de los hongos xilófagos presentaron una pérdida de masa de 1 %, clasificando la madera impregnada de P. radiata con CCA como altamente resistente; en la zona interna, cercana a la médula, alcanzó una pérdida de masa de 26 %, clasificándose como moderadamente resistente. In Chile, Pinus radiata wood has been classified as not durable according to Chilean standards NCh789. To increase its durability it is required to impregnate it with type CCA (copper, chromium, arsenic) soluble salts. The aim of this study was to analyse the effectiveness of the impregnation of five P. radiata round wood treated with this salt. From each 260 cm long round wood a disc was removed from one end, which withdrew a central strip that provided the samples for determination of preservative retention by calcinations and bio-deterioration through accelerated laboratory tests using two brown rot fungi, Gloeophylum trabeum and Poria placenta. It was observed, in the five samples of round wood, that the penetration of the preservative was irregular and pond shaped; covering between 40 to 80 % of the total area, with little consistency in the retention and focusing on the periphery of discs. The preservative salt retention reached 4.3 to 10.5 kg m-3 on discs periphery, while in the inner zone, close to the pith, the retentions were 0.3 to 3.1 kg m-3. The specimens from the periphery of the round wood subjected to attack by xylophages fungi showed a mass loss of 1 %, classif
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