Amelec Viloria ¹, German Avarez ²

Affiliations
1 Escuela de Negocios de la Fundacion Universitaria Konrad Lorenz., Bogot, CO
2 Instituto Tecnologico Metropolitano, Medellín, CO

Abstract

Objectives: The main purpose of this article, which develops from system dynamics, is to make recommendations to serve for the design of public policies on the occupation of physical space by informal sellers of goods for immediate consumption in Bogota. Methods/Statistical Analysis: The process was divided into four (4) phases Defining the problem and identification of the actors, their interests and decision rules, Construction of the causal diagram cycles and description of results. Findings: The most important results indicate that greater interaction among the various stakeholders would be useful in reducing the occupation and the Mayor of Bogota should pay special attention to the time of working life passing traders working in the public space, as this delay may end up condemning this population to work indefinitely in the streets and sidewalks of the city. Application/Improvements: The presence of street vendors of goods for immediate consumption in an area of public space has serious implications on the success of relocation programs, because it increases the likelihood that a passerby buy on the street, because his decision who to buy it is especially based on the proximity of the point of sale.

Keywords

Delays, Feedback Loops, Informal Sales, Public Space, System Dynamics.

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Amelec Viloria ¹, Jenny-Paola Lis-Gutiérrez ²

Affiliations
1 Universidad de la Costa, Barranquilla, CO
2 Escuela de Negocios de la Fundación Universitaria Konrad Lorenz, Bogotá, CO

Abstract

Objectives: To propose Focus for Interactive Systems Design through the Incorporation of User in the Development Process. Methods/Statistical Analysis: This work was within the designs of non-experimental field. Findings: Usability is becoming a key factor in the success of a software product, and it is necessary that the software industry begins to become aware of the need to take into account the usability from the early stages of system development by introducing a focused perspective the user. For this big reason that this research raises different proposals for the establishment of methods, techniques and tools in order to guide developers on activities to follow during the software development process to ensure a level of usability previously established. Presenting a study of the integration of usability in the development process of software engineering, analyzing proposals from both the field of Usability Engineering (UI) and the Software Engineering (IS). Application/Improvements: In a summary of some of the models proposed by the UI for the development of interactive systems and a new proposal Process Model User Centered integrating the IS processes is collected, Human Computer Interaction (IPO) and accessibility in the context of multidisciplinary development teams. The Process Model presented in the international standard ISO 13407: 1999 establishes a framework for regulatory reference guides to ensure usability in the development of interactive systems incorporating user - centered (DCU) during the life cycle development Design.

Keywords

Interactive Systems Design, Process Models, Software, User Incorporation Process Development, Usability.

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Amelec Viloria ¹, Myrna Campo Urbina ², Lucila Gómez Rodríguez ², Alexander Parody Muñoz ³

Affiliations
1 Universidad de la Costa, Barranquilla, CO
2 Universidad Metropolitana, Barranquilla, CO
3 Universidad Autónoma del Caribe, Barranquilla, CO

Abstract

Objectives: To determine the trend of bacterial resistance of Escherichia coli to Imipenem (IPM) and Meropenem (MEM), by means of a linear regression model, taking the information collected in the bulletins of bacterial resistance generated by the GREBO group of Bogotá between 2010 and 2014. Methods/Statistical Analysis: From the information published in newsletters GREBO group between 2010 and 2014, the behavior of E. coli bacterial resistance to antibiotics was analyzed. From this information simple linear regression models using the statistical software Statgraphics XVI were generated. Findings: The generated mathematical models to predict the evolution of antibiotic resistance as a function of time and that were significant are: Resistance IPM * Year = 0.00000208772 (p value 0.0020; adjusted R2 = 92.86%); Resistance MEM = 0.00000149115 * Year (p value 0.0026; adjusted R2 = 91.84%). Application/Improvements: There is a relationship between the values of resistance and over the years, with variable time sufficient to explain the behavior of the resistance of E. coli variable. In 2015 IPM resistance is estimated that this in 0.42% (CI 0.02% - 0.8%) and MEM 0.3% (CI 0.17% - 0.42%).

Keywords

Bacterial Drug Resistance, Escherichia Coli, Imipenem and Meropenem, Linear Regression Model.

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Amelec Viloria ¹, Paula Viviana Robayo ²

Affiliations
1 Universidad de la Costa, Barranquilla, CO
2 Escuela de Negocios de la Fundación Universitaria Konrad Lorenz, Bogotá, CO

Abstract

Objectives: The objective is to analyze the foundation the Virtual Network Level of Application Composed IP Networks Connected with Systems. Methods/Statistical Analysis: In this research using the methodological foundation logical analysis attempts to give an overview of the state of the art in terms P2P and especially networks in the field of computer systems distributed along with several contributions that allow build systems High Throughput Computing. Findings: The network is virtual is application level made up connected to IP networks, in a nutshell systems P2P systems are distributed systems in which there are no any central control or hierarchical structure and can therefore go beyond the services offered by traditional centralized type systems Client Server at the cost of greater technical and theoretical complexity. In P2P systems, nodes that make up the system are connected together using IP networks forming a kind of virtual network application layer, also called “Overlay”, which is used to route messages between nodes in order to find information. Application/Improvements: The recent emergence of applications that exploit the network concept Peer to-Peer or P2P in which all members have the same role has made consider its possible applications to the world of distributed computing. Although there are already similar in this field, such as those that follow the paradigm of grid computing, this new concept may be the source systems massive computer wide open to anyone with an Internet connection could use for the benefit or for solutions others, sharing their surpluses recourses.

Keywords

Massive Computing Systems, Sis Issues Connected to IP Networks, Technical Complexity, Virtual Application Level.

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Amelec Viloria ¹, Maria Wichez ², Norberto Acuna ²

Affiliations
1 Escuela de Negocios de la Fundación Universitaria Konrad Lorenz, Bogotá, Colombia, CO
2 Universidad Autonoma del Caribe, Barranquilla, CO

Abstract

Objectives: Design buyer-based design standards for a multinational production and distribution of products of mass consumption with presence in 44 countries Methods/Statistical Analysis: The process was divided into four (4) phases - Diagnosis of current process, key design EDBC Strategies, proposals EDBC e implementation. Findings: Among the results is made, all the sub-sections that describe strategies are: Assortment, shelf prices and promotional such as: The study of vertical blocks of brands on the shelves, the step diagram s purchase, shelf system according to the quality of products, etc. Application/Improvements: Finally standards are implemented in a sample of stores and checked analytically these increase sales volume by 20% above establishments do not accept the proposal.

Keywords

Pricing and Promotional Design, Standards-Based Buyer, Strategies Assortment, Shelving, Strategy Shelves.

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Amelec Viloria ¹, Norberto Acuna ², Heidy Mejia ², Marjorie Galofre ²

Affiliations
1 Escuela de Negocios de la Fundacion Universitaria Konrad Lorenz, Bogota, CO
2 Universidad Autónoma del Caribe, Barranquilla, CO

Abstract

Objectives: This research was conducted in order to determine the influence of thermal comfort, as measured by the index of temperature Wet bulb globe temperature (WBGT), the Global Attention and Perception Index (GIFS) of high school students from a school in Barranquilla, Colombia. Methods/Statistical Analysis: For this, an experimental design was performed, in which the variable peck response was the GIFS, the potential factor was the WBGT, whose levels were the records under different environmental conditions, and the disturbing factor controllable was “student”, this last it was blocked to minimize variability that this could introduce in response, thus obtaining a completely random model blocks. Subsequently, a group of tenth and eleventh grade other selected, subjected to different environmental conditions for 6 days, in which we applied the Toulouse-Pieron test, to measure attention and concentration; and a survey based on the McIntyre scale to evaluate thermal satisfaction, while thermal comfort was measured using a heat stress monitor. Findings: The collected data were processed statistically using analysis of variance, to see if there were differences between levels, and if the data came from a normal distribution, correlation analysis to determine the influence of WBGT factor in the response variable GIFS and descriptive techniques as bar charts, box and whisker plot, among others, which allowed characterizing the information and identify trends. Application/Improvements: The results showed values of WBGT index mostly within the TLV’s; an inverse strong correlation of 90% between the two variables for the sample taken from tenth grade and a moderately strong relationship of 64.9% for eleventh grade, showing greater influence of environmental conditions on the rate of attention and concentration and thermal student satisfaction in the first group compared to the second, who apparently are less sensitive to these.

Keywords

Thermal Comfort, Index of Attention and Concentration, McIntyre Scale.

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Amelec Viloria ¹, Maria Andreina Moros ²

Affiliations
1 Universidad de la Costa, Barranquilla, CO
2 Escuela de Negocios de la Fundacion Universitaria Konrad Lorenz, Bogota, CO

Abstract

Objectives: This study establishes aimed at recovering the brine flowing with sewage sludge to decrease the concentration of chlorides and reduce salt intake. Methods/Statistical Analysis: A piping system taking into account the characteristics of the sludge, which served as the basis for determining the loss of brine in the effluent, make the necessary calculations for the piping systems to develop and to transport the sludge from the point was raised unloading to the recovery site. considered the issue sis sizing based on the measurement of levels, distance the pipe section to place, make the hydraulic study and plans isometric system was developed. Findings: With the recovery of brine, it manages to reduce consumption of 7.11 tons of salt daily at the plant, leading to savings of 35,539.6 bolivars per year for salt intake. Application/Improvements: When recovering the drained brine the impact this causes for chlorine soda plant, the central plant effluent and receiving water body (Lake Maracaibo) is decreased.

Keywords

Brine, Chemical Treatment Tanks, Chlorides, Sludge.

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Amelec Viloria ¹, Alexander Parody ²

Affiliations
1 Universidad de la Costa, Barranquilla, CO
2 Universidad Autonoma del Caribe, Barranquilla, CO

Abstract

Objectives: This study presents the methodology for a model of multiple linear regression to assess the impact of the first partial grade and the percentage of non - attendance in the final grade students. Methods/Statistical Analysis: Descriptive Statistics and Inferential a program Industrial engineering a university in Colombia. Findings: After the generation and validation of the model was obtained that it explains 83.38% of the variability of the final grade students analyzed (134 students), and this significantly high percentage as a tool to determine the outcome of a student and generate recovery strategies those with a very low projection in its final note, it should be noted that the model was rigorously validated statistically. Application/Improvements: This methodology is proposed as a model for similar studies in other institutions.

Keywords

College Dropout, Multiple Linear Regression, Prediction.

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Amelec Viloria ¹, Paula Viviana Robayo ²

Affiliations
1 Universidad de la Costa, Colombia, Barranquilla, CO
2 Escuela de Negocios de la Fundación Universitaria Konrad Lorenz, Bogota, CO

Abstract

Objectives: This article aims to propose strategies to reduce inventories in the chain supplies multinational companies finished product. Methods/Statistical analysis: For this a methodology in which one of the largest companies flush commoditization of the world with presence in Europe, Middle East and Africa was studied it was established. Through analysis of reports, and business interviews diagnosed and identifies high inventory levels and inventory policies inadequate as key factors that improve the Supply Chain (SC) of the study sample. Findings: Also they formulated and implemented processes of redistribution and unproductive inventory forecast to combat deteriorations, as well as designing processes to be executed to deepen them. Application/Improvements: The end result is achieved reduce inventory in more than a means of Currency Units (CU) million and, in addition to identifying future risks that might jeopardize service levels of the company.

Keywords

Inventory Management, Non - Productive Inventory, Supply Chain Finished Product.

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Amelec Viloria ¹, Mercedes Gaitan-Angulo ²

Affiliations
1 Universidad de la Costa, Barranquilla, CO
2 Escuela de Negocios de la Fundación Universitaria Konrad Lorenz, Bogota, CO

Abstract

Objectives: An analysis of forecast system SAP-APO of a company producing food demand is made Methods/Statistical analysis: redefining the parameters of statistical models l module demand for SAP-APO, change the statistical model adaptive average seasonality and trend of historical data and categorize products according segmentation analysis to assign a different range of tolerance to each when comparing their demand forecasts with sales in recent months. Findings: After implementation the percentage improvement product to manually adjust decreased by 12.58%, compared to the previous level of attention. Application/Improvements: This decreased attention, resulting in an increase in the utility system more than 85%.

Keywords

Information Systems, Inventory Management, SAP Advanced Planner & Optimizer Module.

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Amelec Viloria ¹

Affiliations
1 Escuela de Negocios de la Fundación Universitaria Konrad Lorenz, Bogotá, CO

Abstract

Objectives: This Article aims to raise Strategies Commercial Provider Chains Pharmaceutical Abatement of their costs of logistics. Methods/Statistical analysis: The process was divided into four (4) phases Diagnosis, analyse, proposals e implementation. Findings: The first proposal is to increase the value of Minimum Order Value (MOV), which forces customers to pass orders greater value and volume generating more stock in their warehouses and therefore make fewer orders. This positively impacts the logistics department budget, given the savings generated in fixed administrative costs and transportation. The second option is a total restructuring of the business strategy, simplifying business conditions, normalizing discount rates, establishing new promotions, creating a bonus system that offers the customer different discount rates depending on the total order value, the influences the customer and brings it to place orders for larger volume, therefore less requested a year. Application/Improvements: This proposal seeks to simplify the logistics strategy and sales operations, reducing operating costs and incremental search business.

Keywords

Business Strategy Bid Order, Commercial Strategies, Supply Chain.

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