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Potential evapotranspiration estimates for northeast Brazil using GOES-8 data AGRIAMBI
Bastos,Eduardo J. de Brito; Souza,Jaidete M. de; Rao,Tantravahi V. Ramana.
In this study, an empirical method proposed by Caselles et al. (1992a) is utilized to determine the potential evapotranspiration (ETP) on a regional scale. This method uses the global solar radiation data retrieved by the global radiation model GL1.0, which in turn utilizes data from the visible channel of the GOES-8 satellite. This method is applied to the northeast region of Brazil, using daily and monthly climatological data as the ground truth information to estimate the ETP and the estimated daily ETP data for September, 1997. The methodology involved three steps: 1) to perform a spatial regionalization of the ETP using the method of Ward, which is available in the Statistical Package for the Social Sciences (SPSS); 2) to obtain the correlation...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Northeast-Brazil; Potential evapotranspiration; Meteorological satellite.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662000000300008
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Liver histological alterations in patients with chronic hepatitis C and normal ALT levels in the city of Salvador, Northeast-Brazil BJID
Santana,Nelma Pereira de; Freitas,Luiz A.R. de; Lyra,André Castro; Paraná,Raymundo; Santana,Genoile; Trepo,Christian; Lyra,Luiz G.C..
Patients with chronic hepatitis C can have variable clinical progression. Hepatic histological alterations appear to be milder in asymptomatic subjects who have persistently normal ALT levels. AIMS: To evaluate the severity of histological liver alterations in blood donors with normal and elevated ALT levels. METHODS: We evaluated volunteer blood donors from the main blood bank of the city of Salvador-Brazil. Those who were anti-HCV positive were invited to participate in the study. Serum ALT and AST levels were measured at two time points, two months apart. Donors were divided into two groups: group I, individuals with ALT > 1.5 times the upper limit of normal in at least one time point and group II, individuals with normal or near normal ALT, at both...
Tipo: Info:eu-repo/semantics/article Palavras-chave: ALT levels; Liver alterations; HCV; Northeast-Brazil.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000200003
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