Análisis de las posibilidades de exportación de productos agropecuarios colombianos hacia la República de Corea

El comercio internacional es básico para el desarrollo económico de algunos países, en la actualidad los tratados de libre comercio son un recurso que se utiliza actualmente en muchos países para poder obtener beneficios económicos. Dado que se firmó en 2013 el tratado de libre comercio entre Colombia y la República de Corea surgió un interés por desarrollar un trabajo investigativo, debido a los pocos que se han realizado con respecto a este tema, que tratara las oportunidades que le surgen a la economía nacional con dicho tratado. Se determina con la investigación, de acuerdo a la oferta de la producción colombiana, cuales son las verdaderas oportunidades que debe aprovechar el país con respecto a su sector agropecuario.

Biological Basis and Clinical Application of Serum Tumor Markers

Cancer is the result of the accumulation of changes in molecules with important functions in processes such as cell proliferation, apoptosis, cell death and gene repair. Molecules, substances or altered pathways constitute tumor markers or biomarkers useful in clinical monitoring of cancer patients, because they have demonstrated to be suitable for the valuation of the patient’s treatment and it efficiency. Determination of tumor markers has not been very successful due to the low sensitivity and specificity of the techniques used and the requirement of large volumes of biological samples or the use of invasive methods for collecting them. The serum tumor markers arise, as a useful tool to obtain information about the disease progress and constitute as a scientific challenge to improve its applicability in early diagnosis, prognosis, monitoring of the disease and evaluation of therapeutic efficacy.

The pattern of fall of serum bilirubin after operative relief of obstructive jaundice. A preliminary report

This is the beginning of a prospective study on patients who have obstructive jaundice to see how the serum bilirubin falls after operative relief of the obstruction. Seven of such patients have been studied; four had carcinoma of the head of the pancreas while the other three had choledocholithiasis. The patients with carcinoma had relief of the jaundice through a biliary-enteric anastomosis and those with common bile duct stones had choledochotomy with stone extraction which was completed with insertion of a T-tube. Serial bilirubin estimations were then performed post-operatively to chart the pattern and rate of descent of this in each patient. Our observations suggest that the pattern of fall of serum bilirubin after successful decompression of the extra-hepatic biliary tree exhibit a distinct pattern regardless of the surgical procedure performed for the relief of the obstruction.