Nutrition is Perceived as an Ecosystem Service of the Mangrove by Rural People in Ecuador

The mangrove ecosystem is considered as the source of livelihood, particularly for coastal areas. This study explores the perception of the inhabitants of Puerto El Morro and the island of Costa Rica (Ecuador) against the ecosystem services of the mangrove. Seven quantitative variables were used on the Likert scale by performing exploratory factor analysis. The results were based on a sample of 94 participants finding 2 factors, tourism (29.07% of variance) and nutritious food production (25.45% of variance remaining). The reliability of the questionnaire was acceptable according to Cronbach’s Alpha 0.654. A confirmatory factor analysis is necessary to revalidate the items of the factors. Keywords: coastal communities, eating, mangroves, livelihoods, nutrition. Resumen El ecosistema de manglar se considera fuente de medios de vida, en particular para zonas costeras. Este estudio explora la percepción de los habitantes de Puerto El Morro y la isla Costa Rica (Ecuador) frente a los servicios ecosistémicos del manglar. Se utilizaron 7 variables cuantitativas en escala de Likert realizando análisis factorial exploratorio. Los resultados parten de una muestra de 94 participantes, hallando 2 factores: turismo (29,07% de varianza) y producción alimentos nutritivos (25,45% de varianza restante). La confiabilidad del cuestionario fue aceptable según el Alfa de Cronbach 0.654. Es necesario un análisis factorial confirmatorio para revalidar los ítems de los factores. Palabras Clave: comunidades costeras; alimentación; manglares; medios de vida; nutrición

Methodology of Construction of an Algorithm for the Systemic Learning of First Semester Students of the TICs Subject

Algorithms have become the primary source to start programming. Particularly, making an algorithm from a given problem and converting it into a program is of great importance for analysts, technologists, and computer engineers, that is why this article aims to give a clear idea of how to develop an algorithm for any given problem. The objective of this work was to develop a methodology that is not so complex and that allows our students to perform the algorithm, pseudo-code, flow diagram and finally be able to carry out the program. The tests carried out show that the methodology used gives good results, achieving a significant improvement in the learning of students in the first semester of industrial engineering.   Keywords: algorithms, flow diagrams, program, programming, software engineerin

Determinants of muscle carnosine content

The main determinant of muscle carnosine (M-Carn) content is undoubtedly species, with, for example, aerobically trained female vegetarian athletes [with circa 13 mmol/kg dry muscle (dm)] having just 1/10th of that found in trained thoroughbred horses. Muscle fibre type is another key determinant, as type II fibres have a higher M-Carn or muscle histidine containing dipeptide (M-HCD) content than type I fibres. In vegetarians, M-Carn is limited by hepatic synthesis of β-alanine, whereas in omnivores this is augmented by the hydrolysis of dietary supplied HCD’s resulting in muscle levels two or more times higher. β-alanine supplementation will increase M-Carn. The same increase in M-Carn occurs with administration of an equal molar quantity of carnosine as an alternative source of β-alanine. Following the cessation of supplementation, M-Carn returns to pre-supplementation levels, with an estimated t1/2 of 5–9 weeks. Higher than normal M-Carn contents have been noted in some chronically weight-trained subjects, but it is unclear if this is due to the training per se, or secondary to changes in muscle fibre composition, an increase in β-alanine intake or even anabolic steroid use. There is no measureable loss of M-Carn with acute exercise, although exercise-induced muscle damage may result in raised plasma concentrations in equines. Animal studies indicate effects of gender and age, but human studies lack sufficient control of the effects of diet and changes in muscle fibre composition

4to. Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad. Memoria académica

Este volumen acoge la memoria académica de la Cuarta edición del Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad, CITIS 2017, desarrollado entre el 29 de noviembre y el 1 de diciembre de 2017 y organizado por la Universidad Politécnica Salesiana (UPS) en su sede de Guayaquil. El Congreso ofreció un espacio para la presentación, difusión e intercambio de importantes investigaciones nacionales e internacionales ante la comunidad universitaria que se dio cita en el encuentro. El uso de herramientas tecnológicas para la gestión de los trabajos de investigación como la plataforma Open Conference Systems y la web de presentación del Congreso http://citis.blog.ups.edu.ec/, hicieron de CITIS 2017 un verdadero referente entre los congresos que se desarrollaron en el país. La preocupación de nuestra Universidad, de presentar espacios que ayuden a generar nuevos y mejores cambios en la dimensión humana y social de nuestro entorno, hace que se persiga en cada edición del evento la presentación de trabajos con calidad creciente en cuanto a su producción científica. Quienes estuvimos al frente de la organización, dejamos plasmado en estas memorias académicas el intenso y prolífico trabajo de los días de realización del Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad al alcance de todos y todas

Nutrition is Perceived as an Ecosystem Service of the Mangrove by Rural People in Ecuador

Abstract The mangrove ecosystem is considered as the source of livelihood, particularly for coastal areas. This study explores the perception of the inhabitants of Puerto El Morro and the island of Costa Rica (Ecuador) against the ecosystem services of the mangrove. Seven quantitative variables were used on the Likert scale by performing exploratory factor analysis. The results were based on a sample of 94 participants finding 2 factors, tourism (29.07% of variance) and nutritious food production (25.45% of variance remaining). The reliability of the questionnaire was acceptable according to Cronbach's Alpha 0.654. A confirmatory factor analysis is necessary to revalidate the items of the factors

Eliminación de la materia orgánica e inorgánica presentes en el agua residual de una industria de pulpa de fruta empleando un catalizador enzimático

La presente investigación se desarrollará para mitigar los impactos ambientales que ocasiona el vertido de este efluente industrial sin tratamiento. Ante la necesidad de implementar un sistema de tratamiento de aguas residuales para los efluentes de la Industria extracto de fruta y poder descargarlos dentro de los límites permisibles según el Texto Unificado de la Legislación Ambiental Secundaria (TULSMA) aplicable

Methodology of Construction of an Algorithm for the Systemic Learning of First Semester Students of the TICs Subject

Algorithms have become the primary source to start programming. Particularly, making an algorithm from a given problem and converting it into a program is of great importance for analysts, technologists, and computer engineers, that is why this article aims to give a clear idea of how to develop an algorithm for any given problem. The objective of this work was to develop a methodology that is not so complex and that allows our students to perform the algorithm, pseudo-code, flow diagram and finally be able to carry out the program. The tests carried out show that the methodology used gives good results, achieving a significant improvement in the learning of students in the first semester of industrial engineering.   Keywords: algorithms, flow diagrams, program, programming, software engineerin