Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

The objective of the project is to analyze the effectiveness of the implementation of Power Pivot for monitoring academic performance. The data collection techniques applied were: direct observation, interviews and surveys; for the development of the business intelligence solution an interactive methodology called: Rapid Warehousing was used, which is composed of 5 phases: definition of objectives, definition of requirements, design and modeling, implementation and review. The first phase allowed us to determine where the data and technology needed to implement the business intelligence solution came from, in the second phase we identified the requirements and user profiles, in the third phase we carried out the design and modeling, in the fourth phase we defined the measures and dimensions with DAX functions (Data Analysis Expressions) and finally we programmed a review of the data mart for after nine months. The results showed dynamic reports of the academic performance, making comparisons between the different periods, all of them generated with Excel, together with its Power Pivot complement; verifying that the level of academic performance in a first moment, was much lower than desired, this allowed taking the necessary measures and the improvement in the educational process, through the use of adequate learning tools; in a second moment it was possible to verify that the academic performance of the students improved notably demonstrating the efficiency of the tool for the pursuit in the academic formation.

Child malnutrition in Ecuador reflects a complex context, where indicators of stunting and overweight are higher than the Latin American average. The objective of this document is to examine the evolution of child malnutrition in El Oro, its peculiarities, progress and challenges. The methodology used is quantitative, using data from the Living Conditions Surveys 1999-2006-2014, and makes estimates using regression analysis. The main results indicate that although the levels of stunting and overweight are quite similar in 17%, they present different social and personal determinants, which change over time.

At present, it is foreseen that the reasons why companies need to be certified with quality are to satisfy the client in its entirety with the desired level and be on par with competitiveness, therefore they focus on finding new ways of satisfaction with innovation. Certifications for tourist establishments promote safety and importance, much better now that ICTs are established for their monitoring and processing, taking into account ISOO 9001 quality and QUALITY regulations or, in turn, certifying stars between 2 to 5 mentions. Through this study, the factors that impede the normal functioning of tourist service were analyzed, the variables to be taken into account in the process and strategies for the eradication of traditional methods for the accreditation and certification of hotel tourism companies, and how turn this into a strategy for the process of a management model, in which the quality of hotel tourism in the city of Quevedo is ensured. At present, digital certification is still seen in an unconventional way, since it simulates insecurity on the part of tourist establishments; What is not visualized is that the online method contributes significantly to job growth by departments and improves customer service performance, for this reason it was implemented as a general objective to design a digital system to promote quality development, minimizing efforts in doing so.

For some years, environmental pollution, due to greenhouse gases, has been a matter of constant concern for society, which has been becoming aware of the risks that this issue entails for the life of living beings on the planet. The objective of this work was to determine the concentrations of carbon monoxide, nitrogen dioxide and sulfur dioxide in points of higher vehicular density in the city of Esmeraldas, Ecuador. For the measurement of gases, 3 points in the city were chosen: Ave. Cristóbal Colon “open air sector; Ave. Jaime Hurtado (CODESA sector) and Ave. Simón Bolívar (city center). Measurements were made with specific Drager colorimetric tubes for the measurement of each of these three gases of interest. As a result, it was obtained that the concentrations, of the gases determined, were in no case above the permissible limit, with carbon monoxide being the gas found in the highest concentrations in the 3 points evaluated. As a conclusion, we can say that the levels of environmental pollution were evaluated, in 3 points of the city of Esmeraldas, produced by carbon monoxide, nitrogen dioxide and sulfur dioxide gases mainly emanated by the circulation of vehicles.

Desde su descubrimiento Helicobacter pylori (H. Pylori) ha sido ampliamente estudiado y se ha encontrado asociado a niveles socioeconómicos bajos donde la prevalencia es mayor. Este microorganismo está involucrado en un amplio espectro de patología gástrica como: gastritis crónica, úlceras pépticas, adenocarcinoma y linfoma. En la actualidad se acepta el rol etiológico importante de H. pylori en el cáncer gástrico y sus lesiones precursoras, por lo que consideramos importante actualizar información sobre esta temática. Objetivo: Determinar el rol del Helicobacter pylori en el cáncer gástrico y sus lesiones precursoras, a través de la búsqueda bibliográfica en revistas científicas de los últimos 5 años. Métodos:  Es un estudio descriptivo, retrospectivo, basado en la obtención de información documental sistemática de investigaciones realizadas en diferentes partes del mundo. Se recurrió a las siguientes bases de datos ScIELO, Science Direct y Google Académico, se seleccionaron artículos en inglés y en español. Resultados:  Se seleccionaron 25 estudios publicados entre el 2015 y 2020 con los cuales se pudo dar cumplimiento al objetivo planteado. Conclusiones: H. pylori se encuentra involucrado en la génesis del cáncer gástrico y otras patologías gastrointestinales como la gastritis crónica, úlceras y linfoma MALT. Su prevalencia es mayor en países en vías de desarrollo que en países desarrollados. Emplea mecanismos patogénicos que le permiten colonizar la mucosa gástrica y producir una serie de alteraciones morfológicas que secuencialmente van desde la gastritis crónica, atrofia, metaplasia, displasia y adenocarcinoma.

Sexual taboos when conceived historically and culturally as something forbidden and sacred, appeals to the ignorance of people and society, even punished and in a certain way regularized by social norms, which establishes relatively between what is correct and incorrect. The church is a social inhibitor of freedom and sexual behavior, forgetting that the human being is a sexual being according to Freud. Sexual behaviors are typical of human biology as are desires, masturbation and virginity, however, when are made, biological, social, cultural, ethical and religious factors are involved by taboos, get disenchanted and lose their nature. Prevailing in postmodernity that man is the one with sexual freedom against women who would call it immoral. This research was based on the mixed approach, with reference to the social sciences, in which reference frames were used and the discussion with data related to facts approach through observation and statistics generated from direct sources. A comparative analysis of populations differentiated in cultural contexts was carried out, by establishing that virginity is a guarantee of purity and fidelity in marriage, but not in the other group, it does not establish it as a determining factor in the formation of a couple. Likewise, freedoms and sexual attachment respond to the human condition and with a certain restriction to religious beliefs and values. Keywords: Sexuality, taboos, society, religion, population of urban and rural areas.

The purpose of the present work was to evaluate the student's self-concept in psychology from a multidimensional perspective, by applying the AF-5 test (Self-concept Form 5) to a sample of 450 students from the careers of clinical psychology and psychopedagogy of the Technical University of Machala. A descriptive methodology of group difference was used, cross-sectional with a quantitative approach. The participants increased high levels of self-concept in the academic-work and physical dimensions, but not in the social and emotional dimensions. Some differences were found between the students of the lower and upper semesters, regarding the emotional dimension and only in the family dimension, significant differences related to sex and the career studied were revealed. In relation to age there were no significant differences in any of the dimensions evaluated.

The present research aims to determine the current state of the pedagogical control of sports de-training. Empirical methods and techniques were used. We worked with a sample of 29 ex-athlete, 17 coaches and 13 managers selected in a simple random way, exchanges, meetings and interviews with the sport managers were carried out, socializing with the scientific community through the PNRI participation technique and the TKJ technique and then delimit the internal and external factors according to the SWOT Matrix, the application of the instruments and the analysis carried out on the information and data collected, evidences a scarce knowledge of the theoretical-methodological procedures for the post-sport stage and the systematization of the ideas arising around to the pedagogical control of detraining, which hinder the realization of effective sports de-training actions that ensure a harmonious reincorporation of ex-athletes to society.