Tekhné

14

Authors: Penélope Benvenga

The objective of the research was to develop a method based on management ranges to evaluate the quality of service of insurance companies in Venezuela. To achieve this, we analyzed the quality of service and financial indicators and their management ranges that allow us to measure the quality of service of insurance companies. The quality indicators were defined for each of the processes related to the insured: contracting of policies, after-sales service and payment of indemnities. While the financial indicators analyzed were those established by the CARAMELS classification (asset adequacy, asset quality, reinsurance, actuarial matters, management capacity, profitability and profitability, liquidity and sensitivity to marketrisk). It has been shown that the satisfaction of the insured generates loyalty to the insurance company, which generates an increase in the profitability of the same, so, we analyzed the degree of association that exists between the quality of service performance and The financial. The type of research is descriptive with a correlational level, the statistical techniques used were the analysis of main components and linear correlation. The results obtained in this research indicate that there is an association between the level of service quality of insurance companies and their financial performance. The results of this study will support the Insurance Superintendence (SUDEASEG) to regulate insurance companies in these aspects, by improving the performance of insurance companies in both quality of service and financial performance.

16

Authors: Henry Alberto Molina Fonseca

The article summarizes aspects of the activities developed by the teachers of the Chair of physical General of the Universidad Catolica Andres beautiful in the development of the field work of the doctoral thesis entitled "approximation to a structure Didactics to activate and explore the previous experience in the teaching of physics as natural science". A research on the ideas, expectations and possibilities, having teachers of General Physics matter, within the framework of the teaching of science in schools of engineering, particularly in the dynamic content. Activities are presented in classroom and the mode in which are organized and run educational teaching strategies to activate and explore the experiences, beliefs, and previous ideas in the students, and the effect on teaching strategies have the alternative conceptions, the epistemological obstacles and the didactic transposition, in the context of the construction of educational knowledge, epistemology of science and curricular reconstruction. According to research, teaching and learning processes, it is essential to explore the student experience in relation to the phenomena that surround him. Particularly in the area of physics, mechanical teaching does not allow to achieve meaningful learning on the student. For this purpose this research develops an analysis of teaching strategies based on the theories of David Ausubel (Decade of the 70s of the 20th century) and from the perspective of learning significant critic of Marco Antonio Moreira (2005) proposal.

32

Authors: Johana E Delgado U, Luisa E Bermúdez P

The objective of the research was to improve the construction method based on expanded polystyrene panels, used to build housing solutions for low income people. This construction method uses the lean manufacturing concept. The construction at the site Complejo Residencial de “Tacarigua V”, located in Los Guayos, Carabobo state, Venezuela, was used to conduct the investigation, which uses the projective methodology with no experimental design. During which, the key construction procedures were characterized and analyzed. The investigation process also involved the non-participative direct observation as well as non-structured interviews to construction personnel including both, directives and plain workers. Such interviews covered all construction sectors and activities. The idea was to be able to establish the way the work is currently done and detect key problems and irregularities, which affect the quality and time, including execution and complete construction delivery. To solve the problems encountered several techniques were used such as Gantt diagrams, Cause effect 79 diagrams, Pareto diagrams, Work Value Chain and the software SIMIO which simulates procedures. The aim was to propose different solutions and select the best among them. Results indicate that any solution to the actual situation should include: increase of the work crew members, technical and practical formation of all crew members regarding the construction method, reduction of the overall average construction time, use of documentation tools to provide key information regarding the construction stages.

3

Authors: José Ochoa Iturbe

The present article pretends to give some guidelines and ideas on the role of engineers on the technological changes that are being done in the planet, and have taken place in the time elapsed in the XXI century and their responsibility towards society, and in particular, the role of the ucabista engineer upon those changes. Likewise, there is mention on the changes in teaching methods due to the development of omputer systems and telecommunications.

8

Authors: Marielena Mestas Pérez

The purpose of these pages is to communicate to the community ucabista and public in general as in the Faculty of engineering exist specific and sustained contributions whose objective is to achieve academic excellence and support the formation of each student, to fulfill the mission and vision that the institutional training project it describes. So is reached that the graduates of the faculty are professionals with excellent knowledge, ethical values and incorporate and offer effective solutions to the environment where to unfold. We will present a historical account that shows how in the last 20 years, up to the present date, the Faculty of engineering, according to the demands of the UCAB, evidence, through some chairs and services to the student, values such as inclusion, solidarity, service to the other, respect for differences and comprehensive training.

14

Authors: María López

A documentary review, regarding the academic performance of university students, was conducted based on the results of research work completed during the XXI century in different countries for several careers, including engineering. The authors of the consulted research work take the student’s academic performance as the student grades and allow identifying personal, social and institutional factors which can influence such grades. Moreover, in the present article, a systemic and complex vision of the student’s academic performance is proposed along with institutional guidelines as well as formation programs, for both students and professors, which may contribute to improve the performance of university students.

16

Authors: Daniel Saloni

The present work describes a management system for the Southern U.S. that predicts the durability of the materials in a crawlspace based on calculations from recorded measurements of temperature and relative humidity in that environment. The system was developed to control the temperature and humidity in the crawlspace, preventing the creation of mole that affect humans, and reduces the energy expenditure, resulting from the consumption of the equipment being used as a solution to the problem. This system is capable of managing the temperature and humidity data obtained from a measurement using sensors to monitor the levels that has the crawlspace at one time. According to the data, it performs the activation or deactivation of equipment that are used to assist in the process of leveling of the temperature and humidity, using a control device in order to maintain normal levels of the atmosphere, and thus avoid incubation of mole and excessive consumption of electricity in the houses of the southern United States. The methodological procedures followed are based on the evolutionary prototype that consists of the construction of a series of successive versions of a product. This model builds a system demo and then gets feedback based on testing and product enhancements, repeating this process indefinitely until a version that meets all requirements. For the development of this system was used the Java language, using Frameworks such as Hibernate, Spring, Quartz, also design patterns such as DAO, Singleton, Factory, we have obtained a modular, flexible and scalable that monitors and control of temperature and humidity in the sub-basement of the home.

27

Authors: Wilmer Pereira

At first, basic definitions are presented to understand the scope of Artificial Intelligence, highlighting their positions in order to, at least, simulate human reasoning in a computer. Specifically, we identify the efforts to define formal systems that can model mathematics and therefore human reasoning under the assumption that human intelligence works under a mechanistic paradigm. However, there are insurmountable limitations in all formal systems, so we must settle for strategies that converge to sub-optimal solutions. A stream of Artificial Intelligence establishes this search through techniques inspired by biology, which go beyond the intrinsic limits of deductive mathematical reasoning, since they have proven their efficacy. Consequently, we present the basic principles that govern evolution and genetics,and, the dynamics that underlie genetic algorithms in general. Finally, we will show some results that we have published, using in particular monobjective and multiobjective genetic algorithms, to solve problems on which, in principle, formal operations research techniques or formal systems in general can not be applied.

9

Authors: Rafael Muñiz

Microalgae are eukaryotic organisms found in nature with a wide variety of taxonomies growing in an autotrophic and heterotrophic form. They are very efficient in fixing CO2, the main agent responsible for the greenhouse effect, so their crops could contribute as a valuable resource to control the emissions of this gas on the planet. The use of microalgae as biofuel presents a number of advantages compared to those from other crops. Its oil produces cleaner combustion than that of fossil fuels and in the event of a spill, it generates less pollution in the environment as it degrades in a shorter time. Nevertheless, the cultivation of microalgae at the industrial level presents a series of difficulties due to the high cost of the process and the instability of the crops due to the variable conditions of the environment and the contamination of the nutrient medium with other microorganisms. This paper will discuss some aspects related to microalgae technology and the processing of extracts at the industrial level in order to produce biodiesel, establishing the scope and limitations of this technique as an alternative to the use of fossil fuels.

11

Authors: Luz M. Carrero-Gomez , Desireé Vázquez

Nowadays, Quality is a key aspect in Companies Management; therefore, it is important to maintain and assess the level of quality achieved. This research aims to "Propose a Quality Management System Model for private medical laboratories in Venezuela, according to the ISO 15189: 2012". It is important to note that an update of the standard 15189: 2013 for laboratories was published in September 2013. In Europe, it was requested to update practices according to this new update, in force since March 1, 2016. In order to fulfill this objective, a field research and projective research modality will be carried out , consisting of the following stages of development: To identify private medical laboratories certified under the ISO 9001: 2008 ; to determine the level of quality maturity in certified laboratories through Annex "A" according to the ISO 9004: 2009, to compare the management maturity of certified and non-certified private medical laboratories, and finally, to design the Quality Management Model for private medical laboratories. Data will be collected through questionnaire, structured interviews, and direct observation. The work is aimed at guiding medical laboratories to a Quality Management System which provides a guide for consistent and continuous improvement of the organization overall performance, with additional options to achieve certification or accreditation, thus increasing its impact over management of all the processes, and enhancing the level of satisfaction of customers and stakeholders’ expectations.

19

Authors: Juan Ignacio Ungredda, César Pérez

This work is an application of discrete event simulation in order to increase the utilization of production capacity in a cabinet factory. There were frequent delays due to incomplete inputs to the process and inadequate production programming methods which caused high levels of work in process and unmet delivery dates. Process improvement was achieved by reducing process variability. Possible improvements were generated with a mathematical programming model and its usefulness was verified by simulating the improved process. Results showed that mean capacity was increased 74% following new production scheduling rules; system variability was reduced, demand was met with no increase in capital investment or workforce.

18

Authors: Yusneyi Y. Carballo Barrera, Augusto Alberto Nichols

Una incubadora de empresas es un modelo de gestión donde se asiste a emprendedores y sus proyectos, ayudando a las nuevas empresas a sobrevivir y crecer durante las etapas vulnerables del arranque. Presenta necesidades específicas que requieren de una infraestructura de tecnología de información que soporte un conjunto de funcionalidades de apoyo, además de una metodología que oriente el desarrollo de las actividades del proceso. Contar con una aplicación de incubación de empresas automatizada, en línea y de acceso abierto, beneficiará a los actores facilitando el acceso a recursos, servicios de soporte, acompañamiento en línea, conectividad y el desarrollo de redes en el marco de un ecosistema emprendedor. Las organizaciones que desarrollan programas de apoyo a emprendedores también se benefician, al permitir la trazabilidad o seguimiento del avance de los proyectos en las distintas etapas del proceso de incubación y considerar la especificación de indicadores y recopilación de información asociada, que pueda luego ser analizada para mejorar procesos, servicios y productos. Considerando estos aspectos, el objetivo de este artículo es especificar un conjunto de requisitos funcionales y no funcionales para aplicaciones informáticas de apoyo al proceso de incubación de empresas aplicando la clasificación del modelo FURPS+[19]. El principal aporte es una identificación de requisitos relacionados con las funcionalidades o servicios del producto, la usabilidad, fiabilidad, rendimiento, aspectos de calidad, soporte, diseño e implementación, interfaces, empaquetamiento, licenciamiento, distribución, y posibles limitaciones asociadas al hardware; una especificación más completa, no solo de aspectos metodológicos o técnicos centrados en el desarrollo de herramientas que integrarán el software.

20

Authors: Josemy I. Duarte F., Gabriel E. Rodríguez G., Jesus Lares, José R. Sosa B

Twitter es una red social de microblogging que experimentó un aumento descomunal de popularidad en el 2009, convirtiéndola en una de las plataformas sociales más influyentes en la actualidad. Este fenómeno ocasionó que surgieran distintos tipos de cuentas que perjudican la interacción entre los usuarios esparciendo contenido spam, influyendo opiniones y realizando publicaciones con fines meramente publicitarios. Este tipo de usuarios son conocidos como bots, los cuales se caracterizan por tener un comportamiento automático y programado para cumplir sus funciones. Sin embargo, los bots no son el único tipo de usuarios que pueden tener un comportamiento automatizado; existen usuarios humanos que pueden asistir cuentas bot o utilizar herramientas para programar parte de su comportamiento. Este tipo de usuarios se conoce como ciborgs. En la presente investigación se estudian las características inherentes al contenido y el comportamiento de los usuarios venezolanos de la plataforma de Twitter con el fin de detectar patrones que permitan clasificar a los usuarios en tres categorías: humanos, ciborgs y bots. Se desarrolló un modelo de Machine Learning entrenado a partir de conjuntos de tweets spam y no spam, y conjuntos de usuarios humanos, ciborgs y bots. Finalmente se evaluó el modelo, obteniendo un 86% de exactitud.

13

Authors: Marcos Grillo, Wilmer Pereira, Yudith Cardinale

En un sistema distribuido se requieren múltiples mecanismos de seguridad como: verificación de la identidad de los servidores (autentificación), detección de alteraciones de los resultados (integridad) o aseguramiento de la privacidad de la información (confidencialidad). Para el caso de la composición de servicios web, en donde varios servicios web se articulan para cumplir el requerimiento de un usuario, un intruso puede alterar la información intercambiada entre los servidores. Esto se puede evitar, por una parte, cifrando las respuestas, mediante negociado de una clave de sesión, para que el cliente no reciba, por ejemplo, información fraudulenta o publicidad difamatoria. Por otra parte, valiendose de la infraestructura de claves públicas y privadas, es posible asegurar la autenticidad de los servidores Web mediante certificados y validar la autoría del mensaje para que se asuman los compromisos de la información transmitida usando firmas digitales. Asî en este trabajo se propone el uso de la infraestructura de certificación digital para ofrecer seguridad en el intercambio de información en sistemas distribuidos que realicen composición de servicios web, permitiendo: integridad, confidencialidad, autentificación mutua y evitar el rechazo de autoría por la información transmitida (no repudio).

21

Authors: Jair López, Dinarle Ortega, Elluz Uzcátegui, Elizabeth Sierralta

Las organizaciones gubernamentales están adoptando el uso de servicios para lograr la interoperabilidad de los sistemas de gobierno. En el contexto de gobierno electrónico, la interoperabilidad es la habilidad de los sistemas TI y de los procesos de negocios para intercambiar datos, información y conocimiento, con el fin de ofrecer servicios de mayor calidad a los ciudadanos y los negocios; reutilizando la información existente en diversas divisiones administrativas. La cantidad de actividades y actores involucrados en la apropiación de la interoperabilidad exige un modelo que asegure el establecimiento de objetivos, guíe las acciones hacia éstos y verifique el camino realizado. Un objetivo fundamental de la aplicación de la orientación a servicios es tornar a la interoperabilidad en una consecuencia natural, fomentada por los principios del diseño orientado a servicios. Abordar la interoperabilidad mediante SOA, permite heredar sus beneficios y prácticas de gobernanza que asegure su realización y sostenimiento; incluyendo su modelo de gobernanza, constituido por preceptos, procesos, roles y métricas. La disciplina necesaria para mantener el modelo de gobernanza garantiza que los servicios creados, ofrezcan el mayor valor para todos sus usuarios, promoviendo la plena realización de los beneficios y objetivos relacionados con la IO y el gobierno electrónico.

35

Authors: Roque García Ruiz

Los deslaves son procesos naturales que ha conformado el relieve topográfico para dar paso al desarrollo de las principales capitales y ciudades importantes en el mundo, cuyo producto de materiales deslizados y transportados por el agua son acumulados al pie de las montañas, conformando pendientes suaves. Constituyen problemas de estabilidad en zonas montañosas, debido a la saturación de las laderas, por efecto de lluvias continuas, donde la pérdida de resistencia de las rocas, afectadas por la meteorización, origina deslizamientos en forma de flujo, dejando anfiteatros topográficos de formas convexas. Los deslaves han ocultado ciudades antiguas que han sido objeto de investigaciones arqueológicas. La investigación objeto de este trabajo se basa en la experiencia de los efectos destructivo del deslaves sucedidos en Vargas, Venezuela en 1999, evento natural de gran magnitud ocurrido en un lapso de 72 horas con pérdidas de más de 7000 vidas humanas, cuya recuperación a los efectos visuales fue menor a los de diez años. Las evidencias geomorfológicas de los deslaves, a nivel mundial están a la vista, formas convexas en el relieve topográfico y la acumulación de materiales ladera abajo en forma de cono coluviales, sobre cuyos relieves después del evento se desarrollaron y ampliaron las civilizaciones. Observaciones de las condiciones indicadas pueden ser visualizados en las visitas turísticas en el valle de Urubamba en Perú, a lo largo de las ciudades de Pisac, Ollantaytambo y Machu Picchu, donde se relaciona el amplio desarrollo agrícola alcanzado por los Incas, mediante la construcción de terrazas para cultivos, en general implantados en los numerosos anfiteatros topográficos de forma convexa en las laderas. Las formas topográficas en anfiteatros constituyen el producto de deslaves en un pasado cercano el cual de acuerdo a los estudios de cambios climáticos, el último evento importante, se podría ubicar entre los siglos X y XII, seguido por el desarrollo del imperio Inca. Los cambios climáticos han sido los responsables del ocultamiento del imperio romano, lo cual permitió el resurgimiento de Europa a partir del siglo XI. Los deslaves han sucedido en el tiempo geológico debido al desgaste del relieve de la corteza terrestre, que en conjunto con los efectos de la erosión, transporte y la acumulación de grandes volúmenes de sedimentos ha dado origen a las rocas sedimentarias que controlan el 70% de la superficie terrestre. El tema de los deslaves se considera de gran interés en la evolución del hombre, altamente asociado a los cambios climáticos, que constituyen un efecto en la desaparición de civilizaciones y el resurgimiento de nuevas generaciones con mejores estándares de calidad en conformación de asentamientos humanos. La historia de la evolución humana en los últimos 5000 años, puede estar ligada a los deslaves principalmente en el ocultamiento de ciudades o monumentos, los cuales han sido objeto de excavaciones en investigaciones arqueológicas. En el proceso de ocultamiento es importante relacionar la procedencia de los sedimentos y el ambiente del ó de los eventos naturales involucrados. El estudio del cambio climático, tal de moda en la actualidad, aparenta un proceso natural como lo demuestran los resultados detallados de distintos investigadores en los últimos 1800 años. Aparentemente, los últimos eventos naturales que asocian la ocurrencia de grandes deslaves a escala global se ubican entre los siglos X y XI, coincidiendo con el ocultamiento del Imperio Romano y el comienzo del Imperio Inca.