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Search Results: 1 - 10 of 334677 matches for " S. Capucho Alexandre "
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Surto epidemiológico do vírus do mosaico amarelo do piment o em tomateiro na regi o serrana do Espírito Santo
Maciel-Zambolim Eunize,Costa Helcio,S. Capucho Alexandre,ávila Ant?nio C. de
Fitopatologia Brasileira , 2004,
Abstract: Este trabalho relata a ocorrência de um surto epidemiológico causado pelo vírus do mosaico amarelo do piment o (Pepper yellow mosaic virus - PepYMV) em tomateiro (Lycopersicon esculentum) 'Alambra' na regi o serrana do Estado do Espírito Santo. Os sintomas consistiam de mosaico, definhamento e redu o de produ o. Visando a caracteriza o do agente causal foram realizados estudos sorológicos por ELISA, observa es ao microscópio eletr nico e determina o da gama parcial de hospedeiros. Ao microscópio eletr nico de transmiss o foram observadas, em amostras de tomateiro, partículas alongadas e flexuosas e inclus es cilíndricas típicas de vírus do gênero Potivirus. O PepYMV foi confirmado como agente causal por ELISA indireto. Levantamentos realizados em campos de cultivo demonstraram que a dissemina o do vírus é muito rápida. Este é o primeiro relato da ocorrência do PepYMV na cultura do tomate no Brasil, causando sérios danos.
Surto epidemiológico do vírus do mosaico amarelo do piment?o em tomateiro na regi?o serrana do Espírito Santo
Maciel-Zambolim, Eunize;Costa, Helcio;S. Capucho, Alexandre;ávila, Ant?nio C. de;Inoue-Nagata, Alice K.;Kitajima, Elliot W.;
Fitopatologia Brasileira , 2004, DOI: 10.1590/S0100-41582004000300017
Abstract: an outbreak of pepper yellow mosaic virus (pepymv) was observed in commercial fields of tomato (lycopersicon esculentum) 'alambra' in the serrana region of espírito santo, brazil. symptoms consisted of intense yellow mosaic, weakening of the infected plants and reduction of the yield. the virus was identified by host range, electron microscopy and indirect elisa. field surveys indicated a rapid spread of the virus. this is the first report of natural infection of tomato by pepymv causing severe damage to this crop in brazil.
Farmacovigilancia no Brasil: a rela o entre polimorfi smo de fármacos, efetividade e seguran a dos medicamentos
H. C. CAPUCHO,P. C. MASTROIANNI,S. CUFFINI
Revista de Ciências Farmacêuticas Básica e Aplicada , 2009,
Abstract: Apesar da política nacional de medicamentos propor que os mesmos tenham qualidade, efi cácia e seguran a, os hospitais sentinelas têm recebido notifi ca es de queixa técnica, rea es adversas e suspeita de inefetividade terapêutica de medicamentos. Este estudo prop s identifi car os tipos de medicamentos notifi cados num hospital da Rede Sentinela, durante 18 meses, por suspeita de inefetividade terapêutica e verifi car a possibilidade de existência de polimorfos do fármaco, através de levantamento bibliográfi co. Foram identifi cadas 31 notifi ca es de suspeita de inefetividade terapêutica de medicamentos similares, provenientes de onze fármacos diferentes, dos quais cinco podem apresentar polimorfos. No entanto, n o signifi ca que os demais fármacos n o apresentem polimorfos, sendo necessários estudos mais prolongados sobre o polimorfi smo, priorizando os estudos de fármacos com histórico de notifi ca o de inefetividade terapêutica. Dados do presente estudo sugerem que testes de polimorfos sejam implantados na rotina do controle de qualidade da matéria-prima do fármaco, no desenvolvimento farmacotécnico do medicamento pela indústria farmacêutica e que o órg o sanitário federal exija os testes de polimorfi smo nos estudos de equivalência farmacêutica e estabilidade para o registro e pós-registro de medicamentos similares e genéricos, a fi m de assegurar a reprodutibilidade da qualidade, seguran a e efi cácia comprovadas nos estudos in vivo de bioequivalência e biodisponibilidade relativa. Palavras-chave: polimorfi smo; vigilancia sanitária; medicamento genérico; medicamento similar
Heran?a da resistência do Híbrido de Timor UFV 443-03 à ferrugem-do-cafeeiro
Capucho, Alexandre Sandri;Caixeta, Eveline Teixeira;Zambolim, Eunize Maciel;Zambolim, Laércio;
Pesquisa Agropecuária Brasileira , 2009, DOI: 10.1590/S0100-204X2009000300009
Abstract: the aim of this work was to characterize the resistance inheritance of the timor hybrid ufv 443-03 to coffee leaf rust (hemileia vastatrix). for this, the race ii and pathotype 001 of coffee leaf rust were inoculated in 246 f2 plants, 115 susceptible backcrossing (bcs) plants, and 87 resistant backcrossing (bcr) plants, derived from the crossing between the susceptible genotype 'catuaí amarelo' iac 64 and the resistance source timor hybrid ufv 443-03. for both inoculums, the 'catuaí amarelo' iac 64 was susceptible, while the timor hybrid, the plant representing f1 generation, and the bcr plants were resistant. the f2 plants inoculated with race ii presented two significant segregation ratios: 15:1 and 61:3. the resistance inheritance was verified by the inoculation of the bcs plants, which segregated at a 3:1 ratio, an expected pattern for the inheritance controlled by two genes, whereas the segregation hypothesis of 7:1 for three genes was rejected. two independent and dominant genes confer the genetic resistance of timor hybrid ufv 443-03 to race ii and pathotype 001 of h. vastatrix.
Developing an Advanced Prototype of the Acousto-Optical Radio-Wave Spectrometer for Studying Star Formation in the Milky Way  [PDF]
Alexandre S. Shcherbakov, Abraham Luna
International Journal of Astronomy and Astrophysics (IJAA) , 2014, DOI: 10.4236/ijaa.2014.41012
Abstract:

The designed practically prototype of an advanced acousto-optical radio-wave spectrometer is presented in a view of its application to investigating the Milky Way star formation problems. The potential areas for observations of the cold interstellar medium, wherein such a spectrometer can be exploited successfully at different approximations, are: 1) comparison of the Milky Way case with extragalactic ones at scale of the complete galactic disk; 2) global studies of the Galactic spiral arms; and 3) characterization of specific regions like molecular clouds or star clusters. These aspects allow us to suggest that similar instrument will be really useful. The developed prototype of spectrometer is able to realize multi-channel wideband parallel spectrum analysis of very-high-frequency radio-wave signals with an improved resolution power exceeding 103. It includes the 1D-acousto-optic wide-aperture cell as the input device for real-time scale data processing. Here, the current state of developing this acousto-optical spectrometer in frames of the astrophysical instrumentation is briefly discussed, and the data obtained experimentally with a tellurium dioxide crystalline acousto-optical cell are presented. Then, we describe a new technique for more precise spectrum analysis within an algorithm of the collinear wave heterodyning. It implies a two-stage integrated processing, namely, the wave heterodyning of a signal in an acoustically square-law nonlinear medium and then the optical processing in the same solid-state cell. Technical advantage of this approach lies in providing a direct multi-channel parallel processing of ultra-high-frequency radio-wave signals with the resolution power exceeding 104. This algorithm can be realized on a basis of exploiting a large-aperture effective acousto-optical cell, which operates in the Bragg regime and performs the ultra-high-frequency co-directional collinear acoustic wave heterodyning. The general concept and basic conclusions here are confirmed by proof-of-principle experiments with the specially designed cell of a new type based on a lead molybdate crystal.

Grau de desmineraliza??o em osso trabecular e cortical por meio de tomografia computadorizada quantitativa em c?es submetidos à terapia com prednisona
Costa, Lorena Ad?o Vescovi Séllos;Oliveira, Daniel Capucho de;Gianotti, Juliana Giorgio;Cardoso, Mauro Lahm;Costa, Fabiano Séllos;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010005000195
Abstract: glucocorticoids are widely used in veterinary medicine. however, beyond the beneficial effects, their use can trigger a series of unwanted effects. a clinical trial was conducted in eight healthy dogs in order to assess possible changes in bone mineral density after therapy with prednisone using helical computed tomography. all animals received oral prednisone at a daily dose of 2mg kg-1 of body weight for 30 days. bone mineral density was determined by the obtaining of radiodensity values from the cortical region and the trabecular region of the second lumbar vertebra immediately before and after the period of drug administration. the experimental protocol allowed the characterization of a significant (p<0.01) decrease of trabecular bone radiodensity on the second lumbar vertebra, but no significant demineralization was found in the cortical region. none of the dogs used in this experiment had pathological fracture at the end of the experimental protocol. this study showed that in dogs subjected to therapy with prednisone at a dose of 2mg kg-1 changes in bone metabolism occur early in trabecular bone, being recommended to monitor these patients for the prevention of pathologic fractures.
Métodos de lavra de rochas ornamentais
Reis, Renato Capucho;Sousa, Wilson Trigueiro de;
Rem: Revista Escola de Minas , 2003, DOI: 10.1590/S0370-44672003000300011
Abstract: in this study are reviewed the main dimensioned stones mining methods used at the quarries in brazil and overseas. although the stone cutting technology and the treatment are important points to be considered in the dimensioned stones production, the main objective of this study is only to describe the main mining methods. still nowadays there are not brazilian technical norms to classify the dimensioned stones mining methods used in the country. therefore it was used the methods given in the literature and those used by the industry.
Métodos de lavra de rochas ornamentais
Reis Renato Capucho,Sousa Wilson Trigueiro de
Rem: Revista Escola de Minas , 2003,
Abstract: Nesse trabalho s o apresentados os principais métodos de lavra de rochas ornamentais usados atualmente em muitas pedreiras do Brasil e do exterior. Embora a tecnologia de corte e o beneficiamento sejam aspectos importantes relacionados à produ o de rochas ornamentais, o objetivo desse trabalho é apenas descrever os métodos de lavra mais usados. Na ausência de normas técnicas brasileiras que estabele am uma classifica o apropriada, foi utilizada a classifica o mais usada na literatura e na indústria.
Química verde, os desafios da química do novo milênio
Prado, Alexandre G. S.;
Química Nova , 2003, DOI: 10.1590/S0100-40422003000500018
Abstract: the fundamental concepts of the green chemistry are highlighted in order to present the enormous number of challenges to develop a new chemistry in research, industry and education. the practice of an environmental friendly chemistry are presented to improve the economics of chemical manufacturing and to enhance the much-tarnished image of chemistry and to present the opportunities to discover and apply this new chemistry. the challenges and opportunities of green chemistry in the world and brazil are introduced and discussed in this report.
De la intensidad o los derechos del cuerpo: La afectividad como objeto y como método
Surrallés,Alexandre;
Runa , 2009,
Abstract: the episode of the legendary hercules who, in an attack of blind passion, destroyed what were considered the founding principles of the social tie, introduces the issue of treatment of affectivity in anthropology. the article notes that the interest in affectivity in the human sciences implies not only the emergence of a new analytic field about an important aspect of social activity, but also a reflection on the modalities of knowledge in these disciplines. in fact, to propose the affective dimension as an analytic object has consequences in terms of how to approach knowledge, because the very existence of an affective dimension obliges us to rethink the cognitive dimension inherent in the act of knowledge. in this paper i propose some methodological elements for reflection derived from these ideas.
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