K. M. Fonseca Romero, S. G. Mokarzel, and M. C. Nemes 1 Departamento de F́ısica, Universidad Nacional, Bogotá, Colombia Departamento de F́ısica–Matemática, Instituto de F́ısica, Universidade de São Paulo, CP 66318, 05315-970 São Paulo, S.P., Brazil 3 Departamento de F́ısica, Pontificia Universidade Católica de São Paulo, R. Marquês de Paranaguá, 111, São Paulo, S. P., Brazil 4 Departamento de F́ısic...

  Introduction: Several studies have discussed to the electron contamination caused by the air column between the head of linac and patient for photon beams. Since it is not possible to measure the electron contamination with practical dosimetry, the Monte Carlo technique is an appropriate and accurate choice to calculate particle flounce in radiation therapy. The purpose of t...

El presente artículo resume la investigación realizada para indagar sobre faceta del industrial alemán Leo Kopp como inversionista en finca raíz Bogotá, con el propósito de encontrar huella construida su aporte al desarrollo urbano y arquitectónico capital colombiana reconocer valor patrimonio ciudad, tanto por arquitectónico, histórico testimonial. Se trató una basada un estudio caso histórico...

An improved M.I.T. bag model with hyper central interaction is used to calculate the charge radius for proton containing u and d quarks. We present a theoretical approach to the internal structure of three-body hyper central interacting quarks in a proton, in which we take proton as a bag. We discuss a few of results obtained using a six-dimension potential, which is attractive for small separa...

This paper presents an ARENA®-based library for the development of Timed Colored Petri Net (TCPN) models. In this way, the strengths of Petri Nets and Discrete Event Simulation (DES) are combined in a powerful tool for modeling and analysis of systems. The use of the library is illustrated on a cosmetics manufacturing facility in Bogotá (Colombia). This facility was modeled via both TCPNs and a...

1 Gastrointestinal Surgeon and Digestive Endoscopist. Gastroenterology and Endoscopy Coordinator at the Hospital Cardiovascular del Niño de Cundinamarca in Soacha, Cundinamarca Colombia. 2 Gastrointestinal Surgeon and Digestive Endoscopist at the Hospital Cardiovascular del Niño de Cundinamarca in Soacha, Cundinamarca Colombia and at Saludcoop and at the League Against Cancer in Bogotá, Colombi...

1Department of Health Systems Financing, World Health Organization, Geneva, Switzerland; 2Department of Primary and Community Care, Radboud University, Netherlands; 3Department of Medical Technology Assessment, Ministry of Health, Jerusalem, Israel; 4Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA; 5School of Medicine, Universidad del Rosario, Bogotá, Col...

Alvarez, Diana, Manuel Ruiz-García, Mohamed Noor, and Victor M. Salceda. Unidad de Genética (Genética de Poblaciones-Biología Evolutiva). Laboratorio de Bioquímica, Biología y Genética Molecular de Poblaciones. Departamento de Biología. Facultad de Ciencias. Pontificia Universidad Javeriana. Cra 7a No 43-82. Bogotá DC., Colombia; Department of Biological Sciences. 138 Life Sciences Building. Lo...

Autophagy is an intracellular process in which a cell digests its own constituents via lysosomal degradative pathway. Though autophagy has been shown in several cardiac diseases like heart failure, hypertrophy and ischaemic cardiomyopathy, the role and the regulation of autophagy is still largely unknown. Bcl-2-associated athanogene (BAG-1) is a multifunctional pro-survival molecule that binds ...