Revista Soluciones de Posgrado

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  • PublicaciónAcceso abierto
    Analyzing inflation: Measurement problems and trends
    (2014-05-15) Ardila-Restrepo, H. J. (Hermilson de Jesús); Lochmüller, C. (Christian); Peña-Palacio, J. A. (Juan Alejandro)
    As a consequence of the crisis of 2007/2008, which started in the United States of America within the financial sector and which then spread to the real sector, the governments of several countries had to bail out financial institutions and companies. Central banks, especially in the U.S. and Europe injected liquidity in large volumes into the markets in order to stabilize the financial sector, a process which might produce higher inflation. This article discusses how inflation is measured and found that the measurement does not include adequately the development of prices of financial assets. Furthermore, it discussed that money supply should include loans, as credit serves as money and has an impact on inflation. One of the main conclusions is that there is a real possibility that inflation rates will increase in the medium term future.
  • PublicaciónAcceso abierto
    Numerical analysis of internal recirculation into a radiant tube without internal ignition
    (2014-05-15) Suárez-Castañeda, J. L. (José Luis); Amell-Arrieta, A. A. (Andrés Adolfo); Cadavid-Sierra, F. J. (Francisco Javier)
    This paper presents a numerical analysis using the CFD Fluent (6.3.26 version) program to identify the effects that can be generated when using radiant tubes with internal recirculation of combustion products, but with a pre-combustion chamber. The numerical results are validated with an experimental assembly based on the outlet deviation of gases temperature. These deviations were less than 5 % and are attributed principality to isolation deficiency in the re-radiant surface. To independently find the recirculation effect in this tube, the same operational characteristic in the tube were maintained and an analysis using different windows recirculation widths as well as one without windows was done. Through this analysis, it was possible to observe the little importance of recirculation effects when combustion doesn’t occur internally in the tube on the uniformity surface temperature on the external tube and the emitted energy, but it decrease the system pressure drop slightly although its magnitude order is very small.
  • PublicaciónAcceso abierto
    Administración, ser humano y naturaleza: diálogos inconclusos
    (2014-05-15) Monsalve-Lozano, B. (Bernardo); Guerrero-Guetiérrez, J. (Jonathan)
    The article covers the brief history of management, in order to show the loss of its primitive nature and transformation to current date, for production consumption usage and accumulation in the face of an environmental crisis and consequent effects on the planet. It provokes a reflection on the role to be played by human beings and nature in management thinking, to conclude that teaching a trans-disciplinarian ethos can open the way for integrated management, as it allows not only a constructive debate of disciplines but also, the recognition of the importance of various skills to solve complex problems. This will ensure dialogue over debate; dialogue aims to find a solution whereas debate is the justification of power.
  • PublicaciónAcceso abierto
    Pago por Servicios Ecosistémicos y protección del borde del Cerro de las Tres Cruces: propuesta metodológica para una posible aplicación del método e Valoración Contingente
    (2014-05-15) Pérez-Muñoz, C. (Carolina)
    El artículo plantea, a partir de los modelos de valoración económica de la calidad ambiental, cómo la determinación de la Disposición a Pagar (DAP) de los individuos, puede ser un método complementario para la toma de decisiones de protección y conservación del Cerro de las Tres Cruces. Para ello, se propone la utilización del método de Valoración Contingente (VC) que permite, a través de la creación de un mercado hipotético para valorar la calidad ambiental, estimar la DAP al aplicar análisis estadísticos y econométricos a la información obtenida por medio de encuestas. Aunque el método VC no es aplicado, el estudio encuentra que la posible utilización de este método y de algunos instrumentos de gestión y financiación del suelo, permitirían involucrar a la comunidad en los procesos de mejoramiento del medio ambiente y la protección de los bordes de la ciudad, a través de la aplicación de un esquema de Pago por Servicios Ecosistémicos (PSE).
  • PublicaciónAcceso abierto
    Modelo estadístico de medición R & R en el pesaje de productos de la preparación de pedidos en un centro de distribución
    (2014-05-15) Gómez-Montoya, R. A. (Rodrigo Andrés) [1]
    The article aims to adapt a statistical model R & R to measure the accuracy of weighing system in agrobusiness products picking in Distribution Center (DC). As a result, you get the importance of using statistical models to assess and to establish valid and accurate measurement adequate weighing of products looking to increase the satisfaction of customer needs and efficiency in the DC. In addition, the adapted model can be considered as a contribution to the development of research agenda on the measurement issue of weighing systems in the CEDI, as it had been identified as a research opportunity in the state of the art.
  • PublicaciónAcceso abierto
    Caracterización y análisis del riesgo laboral en la pequeña y mediana industria metalmecánica en Cartagena-Colombia
    (2014-05-15) Morelos-Gómez, J. (José); Fontalvo-Herrera, T. (Tomás)
    This article aims to show the characterization research and evaluation of occupational risk factors to which workers are exposed in small and medium Cartagena metalworking industry. The methodology used in the study included a descriptive analysis of the data, through the application of the techniques and tools of descriptive and inferential statistics and application of in situ structured instrument for collecting information. To develop this study took the total number of companies (16) metalworking affiliates Colombian Association of Small and Medium Enterprises (ACOPI). As important results highlighted in Cartagena the metalworking industry group with 25% highlights being the International Standard Industrial Classification (CIUU)289, related to the manufacture of other fabricated metal products and service activities related to metalworking. It also has that 7 of 16 employers say that the main agent to which workers are exposed is the ergonomic following chemical with 33.7% and security agents 32.95%, which result in occupational diseases, and these, in turn, decreased production efficiency in the engineering sector.
  • PublicaciónAcceso abierto
    Soportes discursivos del paradigma de la productividad
    (2014-05-15) Calle-Arango, C. (Catalina)
    The job performance has depended throughout the history of discourses framed in an economic power, that today seem irrelevant and arbitrary. However the mechanisms that rely on language to work effectiveness, follow dominant and alienating ideas, that end up making paradigms modelers as regulatory activity of social life. Similarly, the work should also be considered from an angle collaborative, positive and empowering.
  • PublicaciónAcceso abierto
    Aplicación de la gestión de riesgos en los principales procesos de una pyme comercializadora
    (2014-05-15) Hernández-García, Y. M. (Yudy Marcela); Lochmüller, C. (Christian)
    This paper proposes for SME s in Medellín a scheme fora risk management that is based in process management. Through a survey the structures and processes that are typically applied in trading SME s to manage risks are identified and analyzed. The survey revealed that most SME s in Medellín currently do not manage their risks related to the business and also that these SME s still know very little about the subject of risk management. Based on the results of the survey and supported by the judgment of two experts and the support of both a small and a medium sized company, a risk management system will be proposed that takes the specific aspects of SME s trading in Medellín into account. Finally, a conclusion is that the SME s can improve their risk management by implementing the proposed scheme in order to avoid losses.
  • PublicaciónAcceso abierto
    Modelo de gestión por procesos en logística aplicado a empresas pequeñas de Medellín
    (2014-05-15) Giraldo-Palacio, C. (Carolina); Moreno-Patiño, L. M. (Liza María); Cortés-Pérez, H. D. (Hernán Darío)
    This article presents the results of an undergraduate thesis, which was carried out at the School of Engineering of Antioquia with the objective to propose a management model which determines the benefits that can be realized through the implementation of business process management in logistical processes within small companies in Medellin. In order to achieve this, a survey and a maturity matrix of the logistical processes, a result of the theoretical study and interaction with experts, was designed and implemented. The analysis of the obtained results indicates that the small companies which participated in the survey, have inaccuracies in their knowledge of process management. However, they perform activities that are related to the management of logistical processes in order to achieve excellent customer satisfaction and thus aim to obtain the necessary income that allows the survival in the market.
  • PublicaciónAcceso abierto
    Propuesta de un índice de capitalización bursátil para la bolsa de valores MILA
    (2014-05-15) González-Jiménez, J. C. (Juan Camilo); Lochmüller, C. (Christian); Yarce-Vélez, R. (Ricardo )
    Since the middle of 2010 meetings were held regarding the creation of a new market that involved and integrates three major Latin American economies with the objective to facilitate trading between these three countries and in order to generate opportunities to invest in a wider market and to stimulate investment in emerging economies. This development justifies the proposal of an index which reflects the movement of price of the most representative stocks that are traded in the new MILA (Mercado Integrado Latinoamericano) market. This article is a result of thesis which was developed during the second half of 2011 at the undergraduate level and that proposes the development of a stock market index called "MILCA P". The proposal is presented in three parts. The markets of the three countries that participate in MILA are analized, the concepts to build an undex are analized and some of the existing indexes, that serve as a reference described. The methodologies for the construction of the porposed index are outlined, as well as the parameters and variables that are used in its construction. the index is constructed by using historical data that start from the first of June 2006, from a baseline of a 1000 points, and that comprise a period of five years, taking into account each date for rebalancing and for the selection of the stock basket. Finally, the validation and the obtained results for the proposed index are presented.
  • PublicaciónAcceso abierto
    Proyecto de observatorio de turismo para Medellín y Antioquia
    (2014-05-15) López-Zapata, L. (Ledys); Márquez-Godoy, J. I. (Jose Ignacio)
    The sectorial work require to feed the economic and social forces with updated and reliable information to orient the focus and making of decisions. The observatories, which work like information management centers, are a proposal that keep the consolidation the efforts inside of organizations from the public-private order that guarantee the sector development. In the text are presented functions, organizational structure, reports, services and the way to do the things which have to take into account organizations like the observatory to satisfy the regional and local needs that can have in the tourism sector.
  • PublicaciónAcceso abierto
    Estimación de modelos lineales para el control predictivo de pequeñas centrales hidroeléctricas
    (2014-05-14) Estrada-Viana, I. D. (Iván Darío); Peña-Palacio, J. A. (Juan Alejandro); Guarnizo-Lemus, C. (Cristian)
    This paper presents the modeling of a Small Hydroelectric Plant (PCH), by obtaining linear prediction models. The mathematical model of the system, provides all your hydraulic system, which runs from the reservoir tank, through the tunnel for the transport of water resources, load lines, up to the generation units. Subsequently, the system proceeds to modeling, using a set of prediction models like ARX models, ARMA X, Box-Jenkins and Output Error (OE). The results obtained for each of the above models were evaluated versus nonlinear dynamic model that represents the dynamic behavior of the system. This evaluation was based on error analysis and according to the performance index of each model. Thus, the best results were obtained by the OE model as this shows a direct way as the error may affect the system output. Finally, the development of this model can be used in the implementation of predictive controllers for load distribution (power generation) in Small Hydroelectric Plant, based on the conditions of water availability in the reservoir tank.
  • PublicaciónAcceso abierto
    Gestión estratégica de la arborización urbana: beneficios ecológicos, ambientales y económicos a nivel local y global
    (2014-05-14) Molina-Prieto, L. F. (Luis Fernando); Vargas-Gómez, O. (Orlando)
    The article approaches the urban tree planting issue emphasizing on the variety of ecological, environmental and economic welfare it brings to the city, its inhabitants and the whole planet when managed strategically, such as, pollution and noise decrease, urban microclimate improvement, global warming mitigation, water levels regulation, soil fertilization and native bird populations conservation —both from endemic and migratory species—, among other global and local notable benefits. It also analyzes the negative impact that an incorrect tree planting management causes on urban infrastructure, as well as the high expenditure it represents to repair. It concludes, amid the aforementioned, that faulty planning of urban tree planting is harmful to city’s public resources and so to their sustainability, besides actually escalating global warming.
  • PublicaciónAcceso abierto
    La inversión colectiva en Colombia: caracterización y análisis
    (2014-05-14) Ramírez-Córdoba, G. L. (Gloria Lucia)
    The extraordinary worldwide growth of collective investment in recent decades deserves to be analysed in some depth. For this reason, this project aims to provide a brief overview of the importance of mutual funds for Colombian society. The history of Colombian mutual funds has been accompanied by the regulation development of these institutions. Therefore, this project differentiates two stages (beginning, and development – expansion), which are marked by the entry into force of the Decree 2175 of 2007. In each of these stages, the mutual fund market has had an extraordinary growth. These results are shown in the description of the main figures of the collective investment market in recent years. Finally, the comparative study of Colombian mutual fund market to other markets allows us to confirm the good performance of the Colombian market, because it had shown higher increases than other Latin American countries analyzed.
  • PublicaciónAcceso abierto
    Valoración por medio de opciones reales del proyecto Hidrosogamoso de la compañía ISAGEN
    (2014-05-14) Correa-Gutiérrez, R. I. (Rafael Ignacio); Martínez-Correa, F. S. (Felipe Santiago)
    Based on the theory of Real Options this paper evaluates the Isagen’s hydroelectric power station Project as it is configured as an investment, in theory, capable of being abandoned in one of five anual Project phases.
  • PublicaciónAcceso abierto
    El consumo del café en Medellín desde la perspectiva del comportamiento del consumidor
    (2014-05-14) Morales-Quijano, J. (Julián); López-Betancur, S. (Santiago)
    In the last years, the coffe market has passed throught great dymanic by offering and innovating with added value products that are revolutionizing the consumer trends worldwide and it has led to an increase of this product market trade. However, in spite of this great market dynamic, the consume volumen in Colombia has decreased.
  • PublicaciónAcceso abierto
    Una estructura eficiente de capital para la Empresa de Telecomunicaciones de Bogotá (ETB)
    (2014-05-14) Chica-Patiño, A. P. (Andrea Patricia); Vélez-Álvarez, J. A. (Jairo Andrés)
    Within the corporate management, financing decisión have special preponderance always focused on achieving the best value at less cost. For ETB, finding the capital strcutre is of vital importance in times when the constant and rapid technological advances and market entry of new and larger competitor make telecommunications a constant battlefield where become incresingly necessary the versatility and optimization of money by the company to ensure its permanence and leadsership.
  • PublicaciónAcceso abierto
    Prestación de servicios de alimentación masiva en obras de construcción
    (2014-05-14) Arcila-Posada, M. (Mariana); Restrepo-Serna, C. (Camilo)
    This article presents a description of the prefeasibility study of the project previding a massive food service to the construction sites in the Metropolitan Area of Medellin. It is instended to improve the current offer throught standardization, good manufacturing practices, agile service and competitive pricing.
  • PublicaciónAcceso abierto
    El turismo en Medellín desde la percepción del consumidor como una creciente oportunidad de negocio
    (2014-05-14) Fiallo, S. M. (Sandra Milena); Franco, J. C. (Juan Camilo ); Jaramillo, C. (Carolina); Mejía, S. (Santiago); Quintero, L. M. (Lina María); Rico, C. (Carolina); Márquez-Godoy, J. I. (Jose Ignacio)
    The determination of the characteristics of foreign patients to deifne some specific segments and their reasons for purchase, found it linked to the perception of quality, human resource, infrastructure, internacional positioning and recognition of health services, which are currently specifically provided in Colombia and Medellin.
  • PublicaciónAcceso abierto
    Factibilidad de una estructura eficiente de capital para Biomax Biocombustibles S. A.
    (2014-05-14) Palacio-Ojalvo, S. (Sebastián); Zapata-Villegas, J. C. (Juan Camilo)
    In this paper we exhibit the necessary elements to prove the existence of an efficient capital structure for Biocombustibles S. A., the reader is contextualized with a short description of the company and a brief description of financial theory on a capital structure. Then analuses the historical financial structure of the company and presents the valuation model, primarly throught the projection results.