Results 21 to 30 of about 463,701 (213)

Herança da Resistência de Lolium multiflorum ao Iodosulfuron-Methyl Sodium [PDF]

open access: yesPlanta Daninha, 2015
Populações de azevém resistente aos inibidores da enzima ALS têm aumentado rapidamente nos campos cultivados. Para o manejo da resistência, são necessários estudos de herança da resistência, os quais permitem entender a evolução da resistência, a ...
F. Mariani   +5 more
doaj   +2 more sources

Dynamics of genetic variability in Anastrepha fraterculus (Diptera: Tephritidae) during adaptation to laboratory rearing conditions [PDF]

open access: yes, 2014
BACKGROUND: Anastrepha fraterculus is one of the most important fruit fly plagues in the American continent and only chemical control is applied in the field to diminish its population densities.
Cladera, Jorge Luis   +7 more
core   +3 more sources

Alterações genéticas no cancro do pulmão: Avaliação das limitações ao seu uso na rotina clínica

open access: yesRevista Portuguesa de Pneumologia, 2007
AbstractLung cancer is the most frequent cause of cancer mortality worldwide, responsible for approximately 1.1 million deaths per year. Median survival is short, both as most tumours are diagnosed at an advanced stage and because of the limited efficacy of available treatments.
Inês A.M. Barbosa   +6 more
openaire   +3 more sources

Experimentation with Animals: A Key Aspect of the 3Rs. The Genetic Quality [PDF]

open access: yes, 2019
The genetic quality of laboratory animals is essential for reproducibility of scientific research. Working with animals of certifiedgenetic quality is still a pending issue in Argentina due to the lack of routine genetic controls, of information on the ...
Castillo, Nadia Sabiela   +4 more
core   +1 more source

A REVOLUÇÃO DA BIOLOGIA MOLECULAR NA MEDICINA

open access: yesRevista de Ciências da Saúde Nova Esperança, 2006
A genética moderna busca desvendar a base molecular dos processos que geram uma doença genética, e melhorar os métodos de diagnóstico e tratamento.
Henrique Douglas M. Coutinho
doaj   +1 more source

Polimorfismos dos alelos m1 e m2 do gene CYP1A1: Susceptibilidade genética para o cancro do pulmão

open access: yesRevista Portuguesa de Pneumologia, 2010
AbstractLung cancer is considered an environment-related disease that develops as a consequence of exposure to mutagenic agents, namely those present in tobacco. The CYP1A1 gene codifies the phase I enzyme aryl hydrocarbon hydroxilase (AHH) belonging to the cytochrome P450 system that plays a major role in the bio-activation of tobacco procarcinogenes.
Henriqueta Coimbra   +5 more
openaire   +3 more sources

Discrete typing units of Trypanosoma cruzi identified in rural dogs and cats in the humid Argentinean Chaco [PDF]

open access: yes, 2012
The discrete typing units (DTUs) of Trypanosoma cruzi that infect domestic dogs and cats have rarely been studied. With this purpose we conducted a cross-sectional xenodiagnostic survey of dog and cat populations residing in 2 infested rural villages in ...
Cardinal, Marta Victoria   +5 more
core   +1 more source

Tuberculose multirresistente: Detecção directa em amostras respiratórias com o método de genética molecular MTBDRplus®

open access: yesRevista Portuguesa de Pneumologia, 2009
AbstractNowadays, the greatest concern of tuberculosis control programmes is the appearance of multidrug-resistant tuberculosis and extensively drug-resistant tuberculosis. Rapid determination of drug resistance in clinical samples, with Mycobacterium tuberculosis complex (MTC), is the prerequisite for initiating effective chemotherapy, ensuring ...
Macedo, Rita   +2 more
openaire   +4 more sources

Effect of environmental factors on the abundance variations of two native rodents in agricultural systems of Buenos Aires, Argentina [PDF]

open access: yes, 2019
Our aim was to assess the effect of environmental factors on short temporal abundance variations of the two most abundant native rodents of agricultural agroecosystems, Akodon azarae and Calomys laucha.
Busch, Maria   +3 more
core   +1 more source

El darwinismo y la cuestión del sentido

open access: yesAsclepio: Revista de Historia de la Medicina y de la Ciencia, 2009
El problema del sentido de la existencia se contempla en estas páginas desde una perspectiva darwiniana. Se argumenta como factores tales como la depresión existencial, la preocupación acerca del sentido del ‘sentido’, el problema del mal, la muerte como
Carlos Castrodeza
doaj   +1 more source

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