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1.
Rev. arg. morfol ; 1(3): 31-32, 2011.
Article in Spanish | LILACS | ID: lil-708284

ABSTRACT

La fotografía va mucho másallá de sus posibilidades documentales, artísticas y de copiado. Para la ciencia, la fotografía es una herramientade primer orden, no sólo para registrar aquello que el ojo percibe, sino también, detalles que resultan imposiblesde ver. Así, en distintas oportunidades los adelantos tecnológicos y descubrimientos científicos de los siglosXIX y XX han requerido del apoyo fotográfico o, en algunos casos, la propia fotografía ha sido la causante de un posterior descubrimiento (fluoresceinografía,colangiografía intraoperatoria, entre otras). En el campo de la investigación científica las placas y películas fotográficas, se encuentran entre los elementos más importantes para la fotografía. La importancia de la fotografía médica radica allíprecisamente, donde otras formas de representación se debilitan debido a su subjetividad. La fotografía, por suinstantaneidad y dinámica permite al fotógrafo romper límites y espacios de privacidad que revelan mundosrelegados a la mirada habitual que solo son percibidos desde la ciencia investigativa.


The photograph goes far beyond his documentaries , arts and copying capabilities. For science , photography is a toolfirst order , not only to record what the eye sees , but also details that are impossibleto see. Thus, at various times of technological advances and scientific discoveries of the centuryXIX and XX photographic have required support or , in some cases , the photograph itself has been the cause of a subsequent discovery ( fluoresceinografía ,intraoperative cholangiography , etc.) . In the field of scientific research photographic plates and films are among the most important elements for photography. The importance of medical photography lies thereprecisely where other forms of representation are weakened due to its subjectivity. Photography , by itsimmediacy and dynamics allows the photographer to break boundaries and private spaces that reveal worldsrelegated to the usual look that are perceived only from the investigative science.


Subject(s)
Humans , Male , Female , Photograph/education , Photograph/instrumentation , Photograph/trends , Photography
2.
Pesqui. vet. bras ; 29(1): 41-44, jan. 2009. ilus
Article in English | LILACS | ID: lil-509253

ABSTRACT

Twenty-five BVDV strains, detected in serum from persistently infected cattle from Peru (n=15) and Chile (n=10) were genetically characterized. The phylogenetic analysis based on the 5' UTR showed that all 25 strains belonged to genotype 1. Twenty-three of the strains could further be subdivided into subtype 1b, and two out of ten Chilean strains into subtype 1a. In conclusion, in total 23 out of 25 strains analyzed were of genotype 1, subtype 1b. This is the predominant BVDV subtype in many countries all over the world, including USA. The close homology with previously described strains reflects the influence of livestock trade on the diversity of BVDV circulating within and between countries and continents. Peru and Chile have imported large numbers of cattle from USA and Europe, mostly with insufficient or lacking health documentation.


Um total de 25 isolados do vírus da diarréia viral bovina (BVDV), sendo 15 originarias do Peru e 10 do Chile foram sujeitas a caracterização genética. A árvore filogenética baseada na análise da região proximal não-codificante (5'UTR) do genoma viral demonstrou que as 25 estirpes pertencem ao genótipo 1 do vírus BVD. Vinte e três destas estirpes puderam adicionalmente ser subdivididas no subtipo 1b, enquanto duas das 10 estirpes isolados provenientes do Chile foram identificadas como pertencentes ao subtipo 1a. Em conclusão, 23 de um total de 25 isolados analisados pertencem ao genótipo 1, subtipo 1b. Este é o subtipo de BVDV predominante em muitos países do mundo, incluindo os EUA. A elevada similaridade genética com isolados descritos anteriormente em outras regiões do mundo realça o papel do comércio internacional de gado no estabelecimento de diversidade genética do vírus BVD. Tanto o Peru como o Chile têm historia de importação de grandes quantidades de gado dos Estados Unidos e da Europa, no entanto sem suficiente documentação comprovativa do estado sanitário no que concerne a esta virose.


Subject(s)
Genetic Variation , Diarrhea Virus 1, Bovine Viral/isolation & purification , /isolation & purification
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