El derecho de consulta como contenido parcial del derecho a la participación de los trabajadores en la empresa

El derecho de consulta tiene una regulación demasiado dispersa. Situarlo en el concepto de participación es tarea de este Trabajo Fin de Grado

Sistemas de gerenciamento de bibliotecas: riscos decorrentes do processo de migração de dados

This work aims to analyze risks related to information technology (IT) in procedures related to data migration. This is done considering ALEPH, Integrated Libray System (ILS) that migrated data to the Library Module present in the software called Sistema Integrado de Gestão de Atividades Acadêmicas (SIGAA) at the Zila Mamede Central Library at the Federal University of Rio Grande do Norte (UFRN) in Natal/Brazil. The methodological procedure used was of a qualitative exploratory research with the realization of case study at the referred library in order to better understand this phenomenon. Data collection was able once there was use of a semi-structured interview that was applied with (11) subjects that are employed at the library as well as in the Technology Superintendence at UFRN. In order to examine data Content analysis as well as thematic review process was performed. After data migration the results of the interview were then linked to both analysis units and their system register with category correspondence. The main risks detected were: data destruction; data loss; data bank communication failure; user response delay; data inconsistency and duplicity. These elements point out implication and generate disorders that affect external and internal system users and lead to stress, work duplicity and hassles. Thus, some measures were taken related to risk management such as adequate planning, central management support, and pilot test simulations. For the advantages it has reduced of: risk, occurrence of problems and possible unforeseen costs, and allows achieving organizational objectives, among other. It is inferred therefore that the risks present in data bank conversion in libraries exist and some are predictable, however, it is seen that librarians do not know or ignore and are not very worried in the identification risks in data bank conversion, their acknowledge would minimize or even extinguish them. Another important aspect to consider is the existence of few empirical research that deal specifically with this subject and thus presenting the new of new approaches in order to promote better understanding of the matter in the corporate environment of the information units

El derecho al aborto en Colombia. II Parte: la despenalización parcial

La concepción originaria de la Corte Constitucional, respecto de si el nasciturus es poseedor o no del derecho absoluto a la vida, ha ido cambiando gradualmente a medida que han ido pasando las sentencias que han estudiado el tema. En un principio, se consideraba esta idea como absoluta, al punto de no permitir en ningún caso el atentado contra el nasciturus. Pero la idea ha ido cediendo, y hoy se considera que no se debería punir cuando una mujer se encuentre en extraordinarias circunstancias anormales de motivación y, además, desde el momento en que haya sido víctima de acceso carnal, inseminación o transferencia de óvulo no consentido y malformación grave del feto. Esta posición, llegó a despenalizar parcialmente el delito de aborto, aceptando que el derecho a la vida del nasciturus no es absoluto y por eso en ocasiones debe ceder frente a los derechos de la mujer. Por ello, para una mejor comprensión de la última decisión de la Corte Constitucional en materia de aborto, se analizara, en un primer capítulo, la penalización del aborto en Colombia, antes de evidenciar, en un segundo capítulo, las ventajas y los límites de la Jurisprudencia que despenaliza parcialmente el aborto en el país. Por último en un tercer capítulo, la tendencia mundial hacia la despenalización de la conducta del aborto.

Obtenção de óxidos a base de níquel e cobalto para reação de oxidação parcial do metano

Nickel-based catalysts supported on alumina have been widely used in various reactions to obtain synthesis gas or hydrogen. Usually, higher conversion levels are obtained by these catalysts, however, the deactivation by coke formation and sintering of metal particles are still problems to be solved. Several approaches have been employed in order to minimize these problems, among which stands out in recent years the use of additives such as oxides of alkali metals and rare earths. Similarly, the use of methodologies for the synthesis faster, easier, applicable on an industrial scale and to allow control of the microstructural characteristics of these catalysts, can together provide the solution to this problem. In this work, oxides with spinel type structure AB2O4, where A represents divalent cation and B represents trivalent cations are an important class of ceramic materials investigated worldwide in different fields of applications. The nickel cobaltite (NiCo2O4) was oxides of spinel type which has attracted considerable interest due to its applicability in several areas, such as chemical sensors, flat panel displays, optical limiters, electrode materials, pigments, electrocatalysis, electronic ceramics, among others. The catalyst precursor NiCo2O4 was prepared by a new chemical synthesis route using gelatine as directing agent. The polymer resin obtained was calcined at 350°C. The samples were calcined at different temperatures (550, 750 and 950°C) and characterized by X ray diffraction, measurements of specific surface area, temperature programmed reduction and scanning electron microscopy. The materials heat treated at 550 and 750°C were tested in the partial oxidation of methane. The set of techniques revealed, for solid preparations, the presence of the phase of spinel-type structure with the NiCo2O4 NixCo1-xO solid solution. This solid solution was identified by Rietveld refinement at all temperatures of heat treatment. The catalyst precursors calcined at 550 and 750°C showed conversion levels around 25 and 75%, respectively. The reason H2/CO was around 2 to the precursor treated at 750°C, proposed reason for the reaction of partial oxidation of methane, one can conclude that this material can be shown to produce synthesis gas suitable for use in the synthesis Fischer-Tropsch process

LA AUTONOMIA DE LA COMUNIDAD ES LA ENZIMA DEL DESARROLLO. LOS COSTOS DEL CLIENTELISMO. (AVANCE PARCIAL DE INVESTIGACIÓN)

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Sincronização do estro e coleta de embriões em suínos nacionais

Dissertação (mestrado)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, 2016.

LA DOLARIZACIÓN PARCIAL EN COSTA RICA

Este estudio examina la magnitud, la evolución y explora las causas de la creciente preferencia hacia activos financieros en moneda extranjera como depósito de valor (sustitución de activos) y en algún grado como medio de pago (sustitución monetaria) en una economía de inflación moderada, sin antecedentes cercanos de crisis ni experiencias de confiscación de depósitos como es Costa Rica.La magnitud de la sustitución por parte del dólar estadounidense de las funciones que desempeña tradicionalmente la moneda local se aproxima a través de varios indicadores basados en razones de depósitos en moneda extranjera con respecto a sus similares en moneda local con frecuencia mensual de 1990 al 2002. Además, se identifican los factores que explican la demanda relativa de los depósitos bancarios según su grado de liquidez y se buscan evidencias de irreversibilidad del proceso (histéresis) mediante variables de tipo “ratchet”.Como factores explicativos del fenómeno, se plantean la probable influencia de elementos institucionales y de los estímulos económicos derivados de la globalización de la economía y de los diferenciales de rendimientos financieros. Pero se sostiene también que las políticas monetaria y cambiaria han tenido efectos en el nivel de dolarización alcanzado por la economía costarricense; por una parte, la política deencajes llevada a cabo desde 1996 favoreció la constitución de depósitos en moneda extranjera (y la intermediación de esos fondos ha debido generar la expansión secundaria de esos recursos) y, por otra, el ajuste cambiario siempre alcista bajo el régimen de minidevaluaciones ha estimulado la sustitución de activos.Se concluye en general que la dolarización de depósitos bancarios ha alcanzado niveles muy elevados (50% del total) y la significancia de la variable “ratchet” da indicios de que el proceso es de difícil reversión por lo que es de esperar que se mantenga en el futuro la preferencia de los agentes económicos nacionales por activos financieros en esa denominación tanto con propósitos de medio de cambio comode reserva de valor. Los factores que la teoría y la literatura apuntan como determinantes del fenómeno muestran ser relevantes en el caso costarricense: la demanda relativa por depósitos en dólares responde positivamente ante la tasa de interés y el ajuste cambiario esperado y negativamente ante el rendimiento diferencial a favor de los activos en moneda local. La apertura externa, aproximada por la evolución de las reservas monetarias internacionales, muestra ser significativa sólo para los depósitos que rinden utilidad como medio de pago y existen evidencias de la influencia positiva de las medidas de política económica señaladas sobre la dolarización de los depósitos bancarios.

Síntese de catalisadores do tipo LaNixFe1-xO3 como precursores catalíticos para reação oxidação parcial do metano

Nickel-bases catalysts have been used in several reform reactions, such as in the partial oxidation of methane to obtain H2 or syngas (H2 + CO). High levels of conversion are usually obtained using this family of catalysts, however, their deactivation resulting from carbon deposition still remains a challenge. Different approaches have been tested aiming at minimizing this difficulty, including the production of perovskites and related structures using modern synthesis methods capable of producing low cost materials with controlled microstructural characteristics at industrial scale. To establish grounds for comparison, in the present study LaNixFe1-xO3 (x=0, 0.3 or 0.7) perovskites were prepared following the Pechini method and by microwave assisted self-combustion. All samples were sub sequently calcined at 900 °C to obtain the target phase. The resulting ceramic powders were characterized by thermogravimetric analysis, infrared spectroscopy, X ray diffraction, specific area and temperature programmed reduction tests. Calcined samples were also used in the partial oxidation reaction of methane to evaluate the level of conversion, selectivity and carbon deposition. The results showed that the calcined samples were crystalline and the target phase was formed regardless of the synthesis method. According to results obtained by Rietveld refinement, we observed the formation of 70.0% of LaNi0.3Fe0.7O3 and 30.0% of La2O3 for samples LN3F7-900- P, LN3F7-900-M and 41,6% of LaNi0.7Fe0.3O3, 30.7% of La2NiO4 and 27.7% of La2O3 for samples LN7F3-900-P and LN7F3-900-M.Temperature-programmed profiles of the LaNiO3 sample revealed the presence of a peak around 510 °C, whereas the LaFeO3 sample depicted a peak above 1000°C. The highest l evel of methane conversion was obtained for LaNiO3 synthesized by the Pechini method. Overall, catalysts prepared by the Pechini method depicted better conversion levels compared to those produced by microwave assisted self-combustion

Examen Parcial 1: Econometría 06216

Examen Parcial 1: Econometría 06216. Elaborado por el profesor Julio César Alonso Cifuentes de la Facultad de Ciencias Administrativas y Económicas – Universidad Icesi. Contiene preguntas y respuestas.

Examen Parcial 2: Econometría 06216

Examen Parcial 2: Econometría 06216. Elaborado por el profesor Julio César Alonso Cifuentes de la Facultad de Ciencias Administrativas y Económicas – Universidad Icesi. Contiene preguntas y respuestas.

Examen Parcial 1: Econometría 06216

Examen Parcial 1: Econometría 06216. Elaborado por el profesor Julio César Alonso Cifuentes de la Facultad de Ciencias Administrativas y Económicas – Universidad Icesi. Contiene preguntas y respuestas.

Examen Parcial 2: Econometría 06216

Examen Parcial 2: Econometría 06216. Elaborado por el profesor Julio César Alonso Cifuentes de la Facultad de Ciencias Administrativas y Económicas – Universidad Icesi. Contiene preguntas y respuestas.

Sustentabilidade do betão: Comportamento de betões com substituição parcial de cimento portland por adições quase inertes

Os betões atuais são materiais com custos extremamente competitivos devido ao baixo custo do cimento Portland. Contudo, os elevados níveis de emissões de C02 gerados na sua produção provocam o aumento do custo final do produto, tanto económico como ambiental. Devido a esta situação algumas adições têm sido estudadas como alternativas para substituir parcialmente os conteúdos de cimento no fabrico de betão. Uma vez que existem grandes quantidades de pó de mármore inutilizadas na região de Évora decidiu-se avaliar o seu comportamento. O pó de mármore foi adicionado em certas percentagens de forma a reduzir os conteúdos de cimento, permitindo avaliar se este iria manter e/ou melhorar as características de resistência à compressão e trabalhabilidade do betão. Além de avaliado o comportamento desta adição, o mesmo foi também comparado com a adição de filer calcário nas mesmas percentagens. Os resultados obtidos demonstraram a exequibilidade da utilização de ambas as adições. ABSTRACT: Concretes currently used in construction are materials with very competitive costs due to the low cost of Portland cement. However, high levels of C02 emissions generated in its production cause an increase of the final cost of the product, both economically and environmentally. Due to this situation, some additions have been studied as alternatives to replace partially cement contents in concrete production. Since there are large quantities of marble dust in the region of Évora, it was decided to evaluate his behavior. The marble dust was added in known percentages so the cement contents could be reduced, allowing evaluating if it will maintain and/or improve the characteristics of the compressive strength and workability of the concrete. ln addition to evaluating the behavior of marble dust, this addition was also compared with the addition of limestone filler in the same percentages. The results demonstrated the feasibility of using both additions.