Atmospheric corrosion of carbon and galvanized steel under high rainfall conditions.

The corrosion rates of carbon steel and galvanized steel according to the ISO 9223 standard, the effect of pollutant contamination and atmospheric aggressiveness under high rainfall conditions in the Chocó department were studied. Carbon and galvanized steel samples, chloride, and sulfur collectors were exposed in three atmospheric stations in three strategic positions covering the Colombian Pacific: Quibdó, Andagoya and Bahía Solano, for different exposure periods (up to 18 months). The structural-micro characterization of corrosion products was evaluated via X-ray diffraction (XRD), Raman spectroscopy and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy SEM-EDS.

Physiologically based Pharmacokinetic/Pharmacodynamic Modeling (PBPK/PD) of Famotidine in Pregnancy.

Famotidine, a H-receptor antagonist, is commonly used to treat heartburn and gastroesophageal reflux disease during pregnancy. However, information on the pharmacokinetics (PK) of famotidine in pregnant patients is limited since pregnant patients are usually excluded from clinical trials. This study aimed to develop and evaluate a physiologically based pharmacokinetic (PBPK) model for famotidine in non-pregnant and pregnant populations, and to combine it with a pharmacodynamic (PD) model to predict the effect of famotidine on intragastric pH.

Evaluating the factor structure of the Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV) in adults with congenital heart disease.

: While it is generally assumed that common neurobehavioral assessments, such as the Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV), function similarly in clinical and non-clinical populations, this has not been validated in adults with congenital heart disease (CHD). In this study, we examined the latent factor structure of the WAIS-IV in adults with d-transposition of the great arteries (d-TGA) who participated in the Boston Circulatory Arrest Study. : The WAIS-IV was administered as part of a larger assessment battery.

Psychopathology of organic brain disorders.

The concept of mental symptom is constructed considering not only the biological signal that determines it, but the multilayered causative factors related to intersubjective experience. However, specific brain damage might produce a set of symptoms expressed in a recognizable gestalt that helps to differentiate organic of psychogenic causation. The legacy of the theory of mental symptoms developed by German Berrios and the seminal work of Hughlings Jackson and Kurt Goldstein can contribute to this difficult task.