Artículos: Recent submissions
Now showing items 1621-1640 of 4223
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New insights on the influence of low frequency pulsed current on the characteristics of PEO coatings formed on AZ31B
In this work, anodic oxide layers on the surface of an AZ31 magnesium alloy were obtained by plasma electrolytic oxidation (PEO) process under low frequency pulsed current. For this, electrolytical solutions containing ... -
Investigation and evidence of context as elements of criminal policy for the prosecution of the organized crime [La investigación y la prueba de contexto como elementos de política criminal para la persecución del crimen organizado]
The problem addressed by the article is directly related to the reflection about what is the incidence of research and context evidence as elements of criminal policy to prosecute the organized crime. We drew as first ... -
Cross cultural management challenges in the internationalisation activities of Medellin's SMES [Desafios de gestão intercultural nas actividades de internacionalização de micro-empresas de Medellín] [Retos de gestión intercultural en las actividades de internacionalización de microempresas de Medellín]
This document analyses cross-cultural management challenges in the internationalisation activities of small to medium enterprises in Medellin, Colombia. Electronic questionnaires were used to collect information from five ... -
Application of real options in decision-making in power markets [Aplicación de las opciones reales en la toma de decisiones en los mercados de electricidad]
Strategic investment decisions in power markets are subject to high risk and uncertainty, therefore Real Options appear to be an appropriate tool to assess the decision-making processes in such markets. This paper presents ... -
International cooperation and the internationalization of small to medium-sized entreprises in Medellín: A case-comparison study [Cooperação internacional na internacionalização de pequenas e médias empresas de Medellín: Um estudo de caso comparado] [La cooperación internacional en la internacionalización de pequeñas y medianas empresas de Medellín: Un estudio de caso comparado]
The aim of this article is to describe the contribution of international cooperation programs in the internationalization of small and medium enterprises in Medellin. Qualitative methodology is developed through multiple ... -
Proposal of a multidimensional space for process management. A case study [Proposta de um espaço multidimensional para a gestão por processos. Um estudo de caso] [Propuesta de un espacio multidimensional para la gestión por procesos. Un estudio de caso]
This article proposes a multidimensional space to control manage processes by integrating different views of the organization. The methodology for the development of the proposal is based on a qualitative research design, ... -
Sulfur Dioxide Effects on Human Atrial Action Potential: In Silico Study
Exposure to air pollutants agents, like sulfur dioxide (SO2), has significant effects on the cardiovascular system. Studies have shown that SO2 blocks ICaL and increases the INa, IK1 and Ito currents, which implies action ... -
Influence of Lifestyle and Cultural Traits on the Willingness to Telework: A Case Study in the Aburrá Valley, Medellín, Colombia
Telework is a decentralized work arrangement. Although it is a widely studied topic, there still is no single definition of telework . The empirical verification of research in this area remains a pending subject. In this ... -
Osmotic energy, a little-known renewable energy source
When the rivers lead into the sea, it merges two water bodies with different salinity level, releasing a large amount of energy when the solutions equilibrate its concentrations; this phenomenon is known as osmosis. With ... -
International standards effect on corporate sustainability: A senior managers' perspective [Incidência das normas internacionais na sustentabilidade corporativa: Uma perspectiva da alta administração] [Incidencia de estándares internacionales en la sostenibilidad corporativa: Una perspectiva de la alta dirección]
International standards have an effect on corporate sustainability, contributing to the business performance and governance. The aim of this study is to analyse this effect from the senior manager's perception of a Colombian ... -
Trends in the use of information and communication technologies for international negotiation [Tendências no uso das tecnologias de informação e comunicação para a negociação internacional] [Tendencias en el uso de las tecnologías de información y comunicación para la negociación internacional]
This article identifies key information and communication technologies (ICT) used in the international negotiation process, classifying them by phases and functionality. A literature review was conducted in recognized and ... -
Fractional Diffusion Modulates Distribution of Action Potential Duration in Fibrotic Atrial Strands
Background: Fibroblast proliferation, as a component of the fibrotic process, plays a role in structural remodeling, but also can alter the electrophysiology of the cardiomyocytes. Aim: To study the action potential duration ... -
Representations on critical thinking development in teachers in training [Representaciones sobre el desarrollo del pensamiento crítico en maestros en formación]
This article presents the results of a quantitative investigation on social representations about the development of critical thinking of a group of teachers in training (n=41). The teaching of social sciences was taken ... -
Characterization of the political system in colombia. Instable structure, restrictive/stable process and poor political results [Caracterización del sistema político colombiano. Estructura inestable, proceso restrictivo/estable y resultados políticos bajos]
In this article, a characterization of the political system in Colombia is presented, based on three political dimensions (structure, process and political result), with the purpose of showing that the creation of the ... -
Atrial Rotor Modulation by Localized Dofetilide Application: An in Silico Study
The rotor ablation has gained favor in recent years to treat chronic atrial fibrillation (CAF). However, it may cause complications in patients and the results remain suboptimal. Besides, antiarrhythmic drugs for the ... -
Modeling of insolvency risk in health sector companies using logit models [Modelación del riesgo de insolvencia en empresas del sector salud empleando modelos logit]
This article shows the prediction of the level of insolvency in companies that are not listed on the stock exchange belonging to the health sector for one and two years in advance, using the multiple logistic regression ... -
Ict for the promotion of international business academic programs [TIC para la promoción de programas académicos de negocios internacionales]
This article aims to identify the level of use and the benefits offered by information and communication technologies (ICT) for the international business academic programs in the universities. For this purpose, a perception ... -
Two Novel Approaches Based on the Thompson Theory and Shape Analysis for Determination of Equilibrium Structures of Nanoclusters: Cu8, Ag8 and Ag18 as study cases
Two new efficient methods for finding stable atomic clusters are introduced in this work. A purely algebraic and geometrical approach based on shape analysis provides a consistent set for optimization of structures which ... -
Wood walls insulated with coconut fiber [Muro de madera aislado con fibra de coco]
Solid wood gives the shape to walls, while panels are the coating and they are nailed or screwed to the wood sections. In the cavities between the wood elements and the panels, a thermal and acoustic insulator must be ...