Phylogenetic reconstruction based on algebra

In this work we have aimed to discuss the theoretical foundations of quartet reconstruction with algebraic techniques and then implement some new quartet inference measures and test their performance on a subset of the Huelsenbeck tree space

Análisis de los riesgos administrativos, técnicos y financieros en proyectos de construcción de Parques biosaludables. Estudio de caso: Proyecto de construcción, Parque biosaludables en el Municipio Espinal - Tolima

Trabajo de investigaciónEl análisis de los riesgos técnicos, administrativos y financieros, se solventan a través de una serie de investigaciones, asesorías y cátedra, que nos ayudan a la toma de decisiones acertadas en las etapas administrativas y constructivas de un proyecto, dichas etapas administrativas son las precontractuales, las contractuales y las de liquidación, las constructivas son las de diseño, las constructivas y al momento de la entrega formal, así obteniendo un plan de respuesta a los diferentes riesgos identificados y analizados, que al finalizar nos facilita la probabilidad de éxito en los proyectos, puntualmente en los de parques biosaludables.INTRODUCCIÓN 1. GENERALIDADES 2. MARCOS DE REFERENCIA 3. METODOLOGÍA 4. DESARROLLO DEL PROYECTO 5. DESCRIPCIÓN DE RESULTADOS ESPERADOS E IMPACTO 6. CONCLUSIONES BIBLIOGRAFÍA ANEXOSEspecializaciónEspecialista en Gerencia de Obras Civile

Una aplicación del enfoque de la función de producción en educación

The aim of this paper is to estimate an education production function using a survey collected in the public schools of Mendoza. Through the estimation of a translog technology that enables the evaluation of second order effects, the results of the best fitted model recall what is found in the main literature, although controversial about the validity of this approach and the applied methodologies: the input which contributes the most to explain academic achievement is the socioeconomic background of the student. The model also suggest significant room to descentralized policymaking, without specific references to input policies.education production function, translog function, Argentina

Professional Career of Women Graduates in Computing in Costa Rica: a Generational Study

The evolution in women´s professional career in computing has been studied very little. In a previous study (LAWWCC 2016) we reported results of an exploratory study that aimed to characterize the professional development model of people that studied Computer Sciences in Costa Rica, in terms of roles and industrial sectors with which they began their professional career and in which they report are currently working.. Surprisingly, no important gender differences were depicted amongst men and women. As a result, some valid concerns were raised regarding the question: do the results represent the behavior of women in all professional career stages? As a result, in this study, results are now grouped by generations. The aim of this study is to determine whether there are differences in these variables in the professional career evolution for different generations. Results are obtained from an online survey responded by 166 women professionals in Computer Sciences. Women are grouped in four generational categories: baby boomers, generation X, young and mature millennials. The main finding of this research is that the professional evolution of women, with respect to the role and sector in which they perform, revel different behaviors for women of different generations.Sociedad Argentina de Informática e Investigación Operativa (SADIO

The cuticular hydrocarbons of the Triatoma sordida species subcomplex (Hemiptera: Reduviidae)

The cuticular hydrocarbons of the Triatoma sordida subcomplex (Hemiptera: Reduviidae: Triatominae) were ana- lysed by gas chromatography and their structures identified by mass spectrometry. They comprised mostly n-alkanes and methyl-branched alkanes with one-four methyl substitutions. n-alkanes consisted of a homologous series from C21-C33 and represented 33-45% of the hydrocarbon fraction; n-C29 was the major component. Methyl-branched alkanes showed alkyl chains from C24-C43. High molecular weight dimethyl and trimethylalkanes (from C35-C39) represented most of the methyl-branched fraction. A few tetramethylalkanes were also detected, comprising mostly even-numbered chains. Several components such as odd-numbered 3-methylalkanes, dimethylalkanes and trimethylalkanes of C37 and C39 showed patterns of variation that allowed the differentiation of the species and populations studied. Triatoma guasayana and Triatoma patagonica showed the most distinct hydrocarbon patterns within the subcomplex. The T. sordida populations from Brazil and Argentina showed significantly different hydrocarbon profiles that posed concerns regarding the homogeneity of the species. Triatoma garciabesi had a more complex hydrocarbon pattern, but it shared some similarity with T. sordida. The quantitative and qualitative variations in the cuticular hydrocarbons may help to elucidate the relationships between species and populations of this insect group.Instituto de Investigaciones Bioquímicas de La Plat

Análisis de los proyectos de inversión directa del Fondo de Prestaciones Económicas Cesantías y Pensiones- FONCEP, en relación al cumplimiento de los objetivos estratégicos organizacionales y al plan de desarrollo distrital para el periodo 2012-2016 Bogotá Humana

El Fondo de Prestaciones Económicas y Pensiones FONCEP, dentro de la estructura organizacional del Distrito Capital, tiene, por una parte, el deber de cumplir con el logro de sus objetivos estratégicos, y por otra, la función de aportar en la consecución de los objetivos planteados por la Alcaldía Mayor como cabeza de la administración central, y los cuales se plasman en el Plan de Desarrollo Bogotá Humana para el periodo 2012 2016. Para ello es importante que se ejecuten proyectos de inversión que aporten al fortalecimiento de la infraestructura para la adecuada prestación de los servicios y la implementación de un Sistema Integrado de Gestión con el fin de hacer más eficiente y eficaz a la Administración de la ciudad de Bogotá

La modernización en Bogotá: Polisemias y representaciones

92 páginas incluye fotografíasA Bogotá, al sincronizarse con la modernización mundial del siglo veinte, se le presentaron diversos interrogantes en su calidad espacial. Este texto busca abordar las preguntas que se han formulado desde las experiencias artísticas, materializadas en obras plásticas, como también desde algunos ejercicios académicos, con el fin de esclarecer, recopilar y dar una nueva lectura sobre las construcciones sociales que se han levantado sobre el acontecimiento urbano.​

El análisis en los diseños de investigación social con énfasis en lo empírico o con acento en lo comprensivo

Por plantear solo uno de los antecedentes del paradigma, en el siglo XVIII En el Nuvum Organun, Francis Bacon procura encontrar las vías más seguras de acceso a la realidad y señala la importancia de la estadística para el progreso de las ciencias y la necesidad de la verificación empírica y rechaza todo aquello que no esté basado en la experiencia

Cytochrome P450 Genes of the CYP4 Clan and Pyrethroid Resistance in Chagas Disease Vectors

Triatomine insects are vectors of the protozoan Trypanosoma cruzi, the causative agent of Chagas disease. Although residual pyrethroid spraying has been a successful vector control strategy for many years, a growing number of pyrethroid-resistance foci is being documented, mainly in Triatoma infestans, that led to failures in vector elimination. Insecticide resistance is a multifactorial phenomenon that often implies a combination of three different mechanisms: increased insecticide detoxification, reduced affinity of the site of action, and reduced insecticide penetration through the cuticle. All three mechanisms were reported in pyrethroid-resistant T. infestans. Cytochrome P450s are enzymes involved in the metabolism of xenobiotics and endogenous chemicals. They are encoded by CYP genes and classified into different families and clans. In triatomines, the CYP4 clan is divided in two families, CYP3093 and CYP4, and both exhibit genome-wide, triatomine-specific gene expansions. Some members from each family have been reported to be involved in two of the mechanisms mentioned above, i.e., they participate in insecticide detoxification in different organs and tissues, and in the synthesis of cuticular hydrocarbons, which ultimately can contribute to a reduced insecticide penetration. The aim of this manuscript is to review the current state of knowledge of P450 genes belonging to the CYP4 clan in triatomines and to highlight their potential role in insecticide resistance.Fil: Dulbecco, Andrea Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner"; ArgentinaFil: Pedrini, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner"; ArgentinaFil: Calderón Fernández, Gustavo Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner"; Argentin