Pedro Carrión

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Prior research has demonstrated the utility of the Multidimensional Scale of Perceived Social Support (MSPSS) and the Network Orientation Scale (NOS) as measures of perceived social support among nonpsychiatric samples. The primary objective of this study was to determine whether these two scales can be used reliably among psychiatric outpatients, in(More)
OBJECTIVE The purposes of the study were to determine rates of compliance with appointments among patients with schizophrenia who had been treated for more than four years in an outpatient clinic, to explore reasons for missed appointments, and to determine whether treatment modalities affected compliance rates. METHODS Chi square analysis was used to(More)
A method for the quantitative determination of acetaminophen by measuring the kinetics of its oxidation by the enzyme tyrosinase in the presence of the nucleophilic agent 3-methyl-2-benzothiazolone hydrazone (Besthorn's hydrazone) is described. The hydrazone traps the o-quinone product of the catalytic activity, 4-acetamido-o-benzoquinone, thus increasing(More)
In this paper we describe how to use a learning object repository in order to store large multimedia files that can been queried by students while they are at home preparing their digital electronic circuits and later at laboratory when they must mount and check them. The system is currently being tested under the pilot project carried out in Electronics(More)
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