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In this work the transformation process of sunflower oil in order to obtain biodiesel by means of transesterification was studied. Taguchi's methodology was chosen for the optimisation of the most important variables (temperature conditions, reactants proportion and methods of purification), with the purpose of obtaining a high quality biodiesel that(More)
In 17 men, aged 27 to 54 years, with myocardial infarction 2 to 10 months before the current exercise study, we aimed to determine whether 3 months of exercise training, at a level designed to elevate high-density lipoprotein cholesterol (HDLC), would be associated with changes in endogenous sex steroid hormones and postheparin lipoprotein and hepatic(More)
OBJECTIVE To collect regional reference values of waist circumference (WC), and waist/hip ratio (WHR) in children and adolescents from Merida, Venezuela, and to compare them to international references. SUBJECTS AND METHODS A total of 919 students aged 9-17 years from public and private educational establishments were assessed. Weight, height, WC, and WHR(More)
OBJECTIVE To obtain local reference values for blood lipids and blood pressure (BP), and to determine the prevalence of metabolic syndrome (MS) in children and adolescents from Mérida, Venezuela, and to compare results using local and international cut-off values. MATERIALS AND METHODS The study enrolled 916 participants of both sexes aged 9-18 years of(More)
We have carefully read the comments in the letter to the editor on our recently published article. The study was indeed conducted in Municipio Libertador of the state of Mérida, as stated in the Materials and Methods section, and was part of a project called ‘‘Assessment of growth, development, and cardiometabolico risk factors in schoolchildren and(More)
1  Abstract In this paper, we describe our decade-long experience of building and operating one of the most active Institutional Repository in the world: www.saber.ula.ve <http://www.saber.ula.ve> (University of the Andes, Mérida-Venezuela). In order to share our experience with other institutions, we firstly explain the steps we followed to preserve and(More)
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