Alexandre dos Santos Leal

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Detecção de doenças sexualmente transmissíveis em ambientes clínicos e não clínicos na Cidade de Salvador, Bahia, Brasil Screening of sexually transmitted diseases in clinical and non-clinical settings Abstract The objectives were to study: (1) acceptance of STD screening in non-clinical settings for asymptomatic individuals; (2) risk factors and STD(More)
BACKGROUND This work presents an initial proposed design of a Prompt Gamma Activation Analysis (PGAA) facility to be installed at the TRIGA IPR-R1, a 60 years old research reactor of the Centre of Development of Nuclear Technology (CDTN) in Brazil. The basic characteristics of the facility and the results of the neutron flux are presented and discussed. (More)
The media claims for the consumption of natural resource-based food have gradually increased in both developing and developed countries. The interest in the safety of these products is partially due to the possible presence of toxigenic fungi acting as mycotoxin producers, such as aflatoxins produced during the secondary metabolism of Aspergillus flavus, A.(More)
Multi-elemental analysis of samples containing uranium by Instrumental Neutron Activation Analysis (INAA) has been generally known as a problematic task due to the numerous radioisotopes produced from the uranium fission when the sample is irradiated with thermal neutrons. In k<inf>0</inf>-standardised NAA (k<inf>0</inf>-NAA)it is possible to correct for(More)
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