Halon
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Improvement of Mycobacterium tuberculosis detection in sputum using DNA extracted by sonication
Abstract Tuberculosis (TB) is one of the infectious diseases with high mortality in the world. DNA amplification techniques have been used to overcome barriers to the diagnosis of this disease. However, the success of these methodologies is highly dependent on the DNA obtained from the sample. This study was carried out to verify whether the DNA extracted by
Braz J Infect Dis. Publicado em: 2020-10
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2. Prevalence of hepatitis C virus and human immunodeficiency virus in a group of patients newly diagnosed with active tuberculosis in Porto Alegre, Southern Brazil
BACKGROUND Porto Alegre is the Brazilian state capital with second highest incidence of tuberculosis (TB) and the highest proportion of people infected with human immunodeficiency virus (HIV) among patients with TB. Hepatitis C virus (HCV) infection increases the risk of anti-TB drug-induced hepatotoxicity, which may result in discontinuation of the therap
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-04
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3. HOT AEROSOL FIRE EXTINGUISHING AGENTS AND THE ASSOCIATED TECHNOLOGIES: A REVIEW
Abstract Since the phase out of Halon extinguishers in the 1980s, hot aerosol fire suppression technology has gained much attention. Unlike traditional inert gas, foam, water mist and Halon fire suppression agents, hot aerosol fire extinguishing agents do not need to be driven out by pressurized gases and can extinguish class A, B, C, D and K fires at 30 to
Braz. J. Chem. Eng.. Publicado em: 2015-09
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4. SimulaÃÃo numÃrica do sistema de supressÃo de fogo em compartimento de carga de aeronave.
Este trabalho simula numericamente o sistema de supressÃo de fogo em compartimento de carga de aeronaves; utilizando o halon 1301 (CBrF3) como agente extintor. Usando uma formulaÃÃo simples baseada no mÃtodo de parÃmetros concentrados, obtÃm-se um modelo matemÃtico para a evoluÃÃo temporal das concentraÃÃes volumÃtricas de ar e halon. A seguir, e
Publicado em: 2005
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5. Assessment of the reproductive toxicology of bromochlorodifluoromethane (BCF, halon 1211) in the rat.
The effect of bromochlorodifluoromethane (BCF) on reproduction in the rat has been investigated in two studies. Pregnant female rats were exposed by inhalation to 1000, 10,000, or 50,000 ppm BCF for six hours a day on days six to 15 of gestation (day of mating = day 0). Exposure to 50,000 ppm BCF caused a reduction in maternal weight gain over the exposure p