bluuebunny/crossref_metadata_2025 huggingface dataset:
Tax Planning, Corporate Governance and Financial Performance of Selected Quoted Non-Financial Companies in Nigeria (2007–2018)
Authors: Olayiwola John , Okoro Stephanie
Published: December 2021

This study examines the interactive effect of tax planning and corporate governance on the financial performance of 50 non-financial quoted companies in Nigeria between 2007 and 2018. The study sample that covers 9 sectors was selected purposively through stratified random sampling. Data used were collected from the audited annual reports and accounts of selected quoted companies in Nigeria and fact books published by the Nigeria Stock Exchange. A system GMM was employed to estimate the dynamic models, and results show that ownership structure (OS) and capital intensity (CI) exerted a significant and positive impact on the returns on assets. This implies that OS plays a significant role to ensure that CI triggers an increase in the return on assets of the quoted Nigerian companies. However, board diversity and thin capitalization wielded a significant and negative influence on return on assets. This study thus recommends that companies should put in place a strong corporate governance mechanism that will monitor, check and balance tax planning activities and strategies adopted by the management of quoted companies in Nigeria.
Linking the Robo-advisors Phenomenon and Behavioural Biases in Investment Management: An Interdisciplinary Literature Review and Research Agenda
Authors: Lisauskiene Nomeda , Darskuviene Valdone
Published: December 2021

Technological advancements bring continuous changes into the investment industry. The paper aims to provide insights on future research agenda based on a review of the current stance of research on the links between the Robo-advisors phenomenon and behavioural biases of individual investors. A qualitative investigation method has been applied for literature review on Robo-advisors and their impact on behavioural biases.
The key findings indicate that Robo-advisors can help users to make better informed and less biased decisions. However, Robo-advisors activate the investors’ automatic system processes. The resulting passive investment approach could lead to alienation of the investors from the stock market, decreasing their understanding of the investment process that could widen a gap between different clusters of investors.
The paper makes several contributions to the literature. First, it provides arguments on why a dual process theoretical framework in the relationship between financial advisory and investment behavioural biases is applicable. Second, it studies the Robo-advisor phenomenon and proposes a comprehensive definition of Robo-advisors. Third, the literature review suggests drivers of the Robo-advisors effect on the changes of behavioural biases as a future research direction.
Rationale for the use of humats in aquaculture (a review)
Authors:   National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine, Polischuk N. , Коvаlеnkо B. ,   National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine, Коvаlеnkо V. ,   National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
Published: December 2021

Purpose. To prepare a justification for the use of sodium and potassium salts of humic and fulvic acids (humates) as substances with biologically active properties in fish feeds based on the analysis of sources of scientific and technical information and own experimental materials, Findings. A complex general characteristic of humic substances was provided, the mechanism of biologically active action of humates on living organisms was described. Examples of the use of humates in crop production, medicine, animal husbandry and aquaculture were given. The results of our own studies on the use of humates as a feed additive for valuable objects of aquaculture were presented. Prospects for the inclusion of micro-additives of sodium and potassium humates in the composition of fish feed in order to increase fish survival and digestibility of feed were outlined. Originality. To date, the introduction of humates into fish feed as micronutrients was experimental. The analysis of scientific sources and materials of own studies gave the basis for the conclusion about the need of complex detailed studying of mechanisms of effects of humates on fish. In particular, it is of interest to study the protective properties of humates from the accumulation of heavy metals in the body of fish for the use of micronutrients of these substances in fish feeds. Practical value. The use of humate feed additives in aquaculture will help to solve such urgent problems as the prevention of excessive losses of biological material of cultivated objects, reduction of feed costs, improvement of consumer characteristics of food products. Humates, as substances of natural origin with protective and immunomodulatory action, can become substitutes for some synthetic therapeutic and prophylactic drugs. Key words: aquaculture, humates, compound feed, feed additive, growth rate, survival, feed assimilation.
Dyke Rocks of the Korsun-Novomyrhorod Anorthosite-Rapakivigranite Pluton
Authors:   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine, Kryvdik S.G. , Dubyna O.V. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine,   Taras Shevchenko National University of Kyiv, Institute of Geology, Belskyy V.M. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine
Published: December 2021

In spite of significant intensity and composition variability of dyke magmatism in the Ingul mega-block, in the Korsun- Novomyrhorod anorthosite-rapakivi granite pluton (KNP) dyke magmatism is restricted. To present day, dykes of basic composition have not been described in this pluton. Previously mentioned gabbro-diabases dykes or diabase porphyrites should be classified as medium rocks as well as they are enriched by SiO2, Na2O and K2O. The authors succeeded studied the dyke from the Nosachiv massif, which can be considered the only known dyke of basic composition in KNP. By chemical composition, this rock is similar to the Ti-enriched gabroids of KNP, but differs in the presence of high-Ti magnetite (not typical mineral in plutonic rocks of KNP), and in terms of SiO2 and Na2O + K2O it should be classified as subalkaline. Most of the dikes known in the KNP are mainly monzonites, monzosienites, less widespread syenites, granite dikes are quite rare too. As our studies have shown, in the previously described porphyry dykes diabase structure is not exihibited. Furthermore pyroxene content is the first percent, and a significant (or most) of them are probably xenogeneic. According to chemical composition such dykes should be classified as medium in composition, because the SiO2 content in them is in the range of 54-60 % and elevated content of K2O, often prevails over Na2O, by low MgO and higher TiO2 they are similar to gabroid of KNP. In these rocks, normative orthoclase and quartz are calculated in significant quantities. Therefore, we offer to consider these rocks as dyke analogues of monzonites (quartz-containing or quartz) and regard as monzonite porphyry. The significant distribution of monzonites and syenites and their dyke analogues denote clear pronounced monzonite-syenite trend of evolution in KNP.
Uranium-Lead Geochronology on Monacite of Granites of the Lypnyazka Massif and its Framing (Ingul Megablock of the Ukrainian Shield)
Authors:   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine, Stepanyuk L.M. , Kurylo S.I. ,   Earth Science Institute, Slovak Academy of Sciences, Syomka V.O. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine, Dovbush T.I. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine, Bondarenko S.M. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine, Kovtun O.V. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine,   Ukrainian State Geological Research Institute (UkrSGRI), Kotvitska I.M. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine
Published: December 2021

The Lipnyazka massif is located in the Dobrovelychkivsky district of the Kirovohrad region, v. Lipnyazka and further south. Structurally, it is located within the Bratskyy Synclinorium of the Ingul megablock and coincides with the Mikhailovsky anticline. The main petrotype of the massif rocks are porphyry-like granites, often with a gneiss-like texture, aplito-pegmatoid, pegmatoid granites and pegmatites. The latter most often form secant vein bodies. Uranium-lead isotopic dating of granitoids of the Lipnyazka granite massif has been performed, with which a number of deposits and ore occurrences of rare elements, primarily lithium, are spatially and probably genetically connected. The age of porphyry-like granites (2032 ± 6 million years), which is the main petrotype of rocks distributed in the area of the village of Limestone and pegmatoid granites (2027 ± 1 million years), which cut porphyry-like in the form of vein bodies. Aplithoid framed granites (2046 ± 8 million years old), common in the area of the mouth of the Sukhyi Tashlyk River (Dobryanka village), are somewhat older. Based on the results of determining the isotopic composition of strontium in the accessory apatite of granites, a conclusion was made about the upper crust source of granites of the Lipnyazka massif (87Sr/86Sr – 0.730-0.785).
Uranium-Lead by Monacite Geochronology of Granites Distributed in the Middle Current of ihe River Ros (Ros-Tikich Megablock Ukrainian Shield)
Authors:   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine, Dovbush Т.I. , Stepaniuk L.M. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine, Ziultsle О.V. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine, Yaskevych Т.B. ,   M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine
Published: December 2021

Granitoids play a leading role in the geological structure of the Ros-Tikich megablock. The rocks of the Ros-Tikich series, which form the supercrystalline base here, have survived among the granitoids only in the form of some remnants of different sizes. In the coastal outcrops of the middle course of the river Ros (east of Bila Tserkva) and in the quarries located near the river, the most common are two-feldspar granitoids, isolated as part of two complexes – Uman and Stavyshche. Plagiogranitoids and supercrustal rocks have survived among them in the form of separate fragments. Of the accessory uranium-containing minerals, zircon and titanite are present in two-field spar granites, and monazite was found in single samples of granites in which titanite was absent. The age of obscure porphyry-like granite discovered by the Ostrivsk quarry – 2063.5 ± 1.2 million years and uniformgrained granite, distributed in the quarry of the village of Bovkun – 2042.5 ± 8.6 million years. The obtained values of the isotopic age of these granites are in good agreement with the results of uranium-lead isotopic dating of zircons from twofeldspar granites of the Ros-Tikich megablock (1990-2080 million years). This allows us to propose to combine the granites of the Stavyshche and Uman complexes into one Paleoproterozoic complex.
Movilización político-electoral e identidades LGBT+ en Colombia. Las historias de vida como forma de construir y deconstruir la historia contemporánea del país
Authors: Monroy-Agámez Melissa
Published: December 2021

A través de las historias de vida de seis ex candidatos y ex candidatas LGBT+ se narra cómo estas personas se movilizan desde lo individual hasta lo colectivo con el fin de participar democráticamente en el país. Desde las historias de vida, un marco teórico feminista y decolonial y a través de cuatro categorías —experiencias, articulaciones, representaciones y políticas identitarias— se concluye que las personas sexo-género diversas no se movilizan únicamente por su identidad LGBT+, sino por la sumatoria de identidades y experiencias de vida que las conforman, con el objetivo de evitar que otros y otras pasen por las mismas experiencias adversas que vivenciaron en algunos momentos de su vida.
Familia, compadrazgo y alianzas políticas: las redes sociales de la elite regional, Minas Gerais-Brasil, 1782-1849
Authors: Andrade Mateus
Published: December 2021

El artículo examina la dinámica familiar y la trama de las disputas regionales en la provincia de Minas Gerais. Tiene como objetivo comprender la política local de la parroquia Piranga y las alianzas que forjaron interdependencias entre el centro y las periferias del Imperio de Brasil. El autor analiza las estrategias sociales y políticas de los electores y sus familias, y pone de relieve las complejas negociaciones políticas entre las parroquias, las asambleas provinciales y la Corte. Los métodos y procedimientos de la historia familiar y el análisis de redes sociales son utilizados en la investigación. Finalmente, se detectaron mecanismos de cooptación y exclusión, evidentes cuando se visualiza la aproximación social de las familias de elite en busca de asegurar su lugar de prestigio, afianzar las bases del poder local y su lugar directivo en esa sociedad en transformación, sedimentando las bases patrimoniales, apalancando el prestigio social y el capital político.
ACOFI, una entidad al servicio de la educación en ingeniería
Authors: Sánchez Bolívar Guillermo
Published: December 2021

La Asociación Colombiana de Facultades de Ingeniería, ACOFI fue constituida hace 16 años para que aglutinara y encausara los esfuerzos y los recursos de las facultades de ingeniería, con el objeto de propiciar el progreso permanente de la educación de ingenieros en el país. En este artículo se describen los antecedentes que condujeron a la creación de ACOFI, su organización administrativa, sus principales actividades y su plan de desarrollo. También se mencionan los orígenes, alcances y logros del Programa de Mejoramiento de la Calidad Educativa en Ingeniería y las perspectivas de la Asociación.
Almacenamiento aireado de maíz en los Llanos Orientales
Authors: Parra Coronado Alfonso
Published: December 2021

En este artículo se presenta una metodología de trabajo desarrollada en el Departamento de Ingeniería Agrícola de la Universidad Nacional de Colombia - Sede Santafé de Bogotá, D.C., con el fin de realizar estudios de almacenamiento de granos con aireación en regiones tropicales. La metodología se basa en la técnica de simulación matemática, mediante la cual es posible predecir simultáneamente, la variación meteorológica, el proceso de aireación y el proceso de deterioro de productos agrícolas y optimizar el dimensionamiento y operación de sistemas de almacenamiento con aireación. Se presentan los resultados obtenidos del estudio de almacenamiento con aireación de maíz desgranado en la región de los Llanos Orientales; se proporcionan recomendaciones específicas para la operación del sistema.
Algoritmos de antialiasing
Authors: Mañana Guichón Gabriel
Published: December 2021

Se presentan los algoritmos desarrollados para el trazado de líneas suaves y aplicación de texto sobre imágenes, como ejemplo del trabajo de investigación que se lleva a cabo en el campo del filtrado de imágenes o antialiasing.
Fundamentos de neurocomputación
Authors: Hernández Germán J. , Torres Luz Gloria , Niño Luis Fernando
Published: December 2021

En este documento se realiza una introducción histórica al desarrollo de la neurocomputación, se estudian los fundamentos teóricos que describen el funcionamiento de los dispositivos computacionales neuronales, llamados también Redes Neuronales Artificiales (RNA’s) y se menciona una gama de aplicaciones que tienen tales dispositivos en la solución de problemas en Ciencias e Ingeniería.
Síntesis y ensayo de un ionómero como catalizador de epoxidación de olefinas
Authors: Boyacá Mendivelso Alejandro , Tempesti Ezio
Published: December 2021

El propósito del presente trabajo es la preparación de un ionómero con base en Molibdeno y evaluar su actividad como catalizador de epoxidación de olefinas como alternativa de síntesis de catalizadores del proceso Halcon. Se sintetiza un polímero con grupos funcionales disponibles para estabilizar el metal a partir de molibdato de sodio, la caracterización se hace por absorción atómica, espectroscopia I.R. y X.P.S. La caracterización indica que efectivamente se logra estabilizar el Mo en la matriz polimérica. La evaluación en reacción en fase liquida permite conversiones similares a las de un catalizador homogéneo.
La epoxidación selectiva de olefinas por alquil hidroperóxidos, ha adquirido gran importancia dentro de los procesos de obtención industrial de óxido de propileno debido a la reciente utilización del alcohol terbutílico (coproducido junto con el epóxido), como aditivo en gasolinas libres de plomo. En el ámbito de estos procesos, y en particular en el proceso Halcon, existen posibilidades de innovación tecnológica, en lo concerniente a la heterogenización de catalizadores convencionales, actualmente empleados en fase homogénea. El presente trabajo se suma a algunas tentativas que buscan generar alternativas de preparación de catalizadores para el proceso Halcon, sintetizando y probando la actividad de un ionómero como catalizador de epoxidación, el cual intenta reproducir la estructura química de los complejos organo-metálicos pero suprimir las etapas de separación y recuperación necesarias posibilitando su reutilización cíclica con eventuales repercusiones económicas en el proceso industrial. Se describe el procedimiento de síntesis del ionómero, la caracterización y la evaluación de la actividad en reacción en diversas condiciones.
De la caracterización efectuada se desprende que la heterogenización de catalizadores para epoxidación de olefinas, según el proceso Halcon, es posible mediante la preparación de polímeros modificados apropiadamente. Así mismo la evaluación en reacción ha tenido un resultado exitoso, alcanzando conversiones comparables a las de un catalizador homogéneo.
Expansión de los suelos arcillosos parcialmente saturados. Segunda Parte
Authors: Beltrán Moreno Lisandro
Published: December 2021

En esta segunda parte del artículo se hace una breve descripción de los factores que influyen sobre la expansividad de los suelos arcillosos parcialmente saturados, y se indican las soluciones, más adecuadas, para evitar los problemas causados por la expansión de los suelos arcillosos cuando sobre ellos se construyen estructuras livianas.
El artículo completo fue presentado en el Primer Encuentro Nacional de Ingenieros de Suelos y de Estructuras, evento que se realizó en Santafé de Bogotá entre el 4 y el 6 de Septiembre de 1991.
Simulación del crecimiento de Aerobacter Cloacae
Authors: Duarte Torres Alberto
Published: December 2021

El propósito de este artículo es presentar los resultados obtenidos mediante la simulación del crecimiento de Aerobacter cloacae, con el programa: C:\GWBASIC\HERBERT.BAS, y analizar algunos factores tales como caudal, tiempo de retención y productividad, relacionados con el diseño y operación de reactores donde ocurren transformaciones bioquímicas originadas por la acción de células vivas.
Conceptos de probabilidad y estadística en análisis de fallas de componentes mecánicos
Authors: Hernández Héctor
Published: December 2021

Cuando se presenta una falla en un componente mecánico, de alguna manera, la carga aplicada se hace igual o mayor a la carga de falla en el momento que ésta se produce. Teniendo en cuenta este principio y considerando fa variabilidad estadística tanto del esfuerzo aplicado como de la resistencia se llega al concepto de probabilidad de falla. Asumiendo que la distribución del esfuerzo aplicado y de la resistencia son normales se concluye que la probabilidad de una falla aumenta con: (a) la reducción de la diferencia entre el valor medio de la resistencia y el valor medio del esfuerzo aplicado, (b) el aumento de la varianza tanto del esfuerzo como de la resistencia. 
Para una determinada distribución de carga aplicada se puede presentar un aumento de probabilidad de falla por inducción de esfuerzos internos de fabricación o de ensamble, o por la generación de discontinuidades o defectos durante la fabricación, el mantenimiento y el servicio; debido a que se aumenta el traslapo entre la distribución del esfuerzo aplicado y la distribución de la resistencia. La incidencia de los defectos en la probabilidad de falla depende del modo de falla, la cual a la vez depende del tipo de carga, características mecánicas del material y de las condiciones ambientales de servicio. Cuando el modo de falla de un componente es por un crecimiento lento de grieta, la confiabilidad se puede mejorar mediante inspecciones periódicas empleando procedimientos de inspección no destructivos para detectar oportunamente grietas de tamaño subcrítico.
Soporte computacional para administración integrada de redes y servicios
Authors: Pérez Castillo José Nelson
Published: December 2021

Este artículo contextualiza la problemática actual de la administración de redes de comunicaciones considerando las profundas repercusiones, tanto de la internacionalización de la economía como del ritmo impetuoso del avance tecnológico sobre el sector teleinformática y la calidad en la prestación de los servicios de comunicaciones. Reseña someramente las actividades de los distintos frentes de estandarización; en particular a ISO, la ITU-T y la Internet. Se muestran, entonces, las características del soporte computacional para el desarrollo de aplicaciones, señalando los servicios de comunicaciones, interfaz gráfica y bases de datos teniendo en cuenta la naturaleza distribuida de la administración de redes. Finalmente, se muestran los atributos generales de las herramientas de desarrollo disponibles en la actualidad.
Eficacia antiparasitaria in vitro del extracto de quebracho (Schinopsis balansae) sobre larvas infectantes de Haemonchus contortus de ovinos
Authors: Vergara D. , Sagüés F. , Späth E. J. , Lloberas M. M. , Saumell C. A. , Moreno F. C.
Published: December 2021

El objetivo fue evaluar in vitro la eficacia del extracto de quebracho (Bioquina®), rico en taninos condensados, en el control de H. contortus de ovinos, dadas las evidencias de que los taninos condensados provenientes del extracto de quebracho (Schinopsis spp.) pueden reducir la excreción de huevos, la fecundidad de las hembras parásitas y la carga de parásitos nematodos gastrointestinales adultos en rumiantes. Se utilizó el test de inhibición de migración larval (IML) a 3 concentraciones diferentes (5 mg/ml, 15 mg/ml y 30 mg/ml) sobre larvas infectantes de H. contortus susceptibles a todos los grupos químicos. El efecto se analizó mediante un análisis de varianza y para la estimación de las diferencias entre grupos (a posteriori) se usó la prueba LSD Fisher.

El test in vitro demostró que el extracto de quebracho evaluado redujo aproximadamente entre un 74% y un 80% la migración larval a las concentraciones de entre 5 mg/ml y 30 mg/ml. Del análisis de varianza surgen diferencias significativas entre tratamientos (p = 0,0494). Al realizar la prueba de comparación de medias se evidenciaron diferencias significativas (p < 0,05) entre los promedios de migración a las diluciones de 5 mg/ml y 15 mg/ml y de 5 mg/ml y 30 mg/ml, mientras que no se detectaron diferencias significativas entre la dilución de 15 mg/ml y 30 mg/ml. Estos resultados señalaron que el extracto de quebracho, a las diluciones evaluadas, presentó actividad antihelmíntica sobre larvas L3 susceptibles de H. contortus; sin embargo, se requiere ampliar los estudios in vivo en ovinos.
Caracterización del nivel ético profesional de estudiantes y docentes de la carrera de medicina veterinaria de la Universidad Santo Tomás, sede Puerto Montt, Chile
Authors: Saldivia-Paredes M. , Neumann-Fuentealba E. , Frex-Godoy C.
Published: December 2021

El objetivo principal de este estudio fue caracterizar el nivel ético en estudiantes y docentes de la carrera de medicina veterinaria de la Universidad Santo Tomás, sede de Puerto Montt, Chile. Para esto, se aplicó una encuesta dilemática a 3 grupos de estudio conformados por estudiantes de primer y quinto año, además de docentes que imparten asignaturas de formación profesional de la sede Puerto Montt. La creación de la encuesta fue por medio de la contratación de especificaciones éticas de la carrera con los diles de juicio moral en Kohlberg. De los resultados obtenidos se pudo concluir que las especificaciones de la carrera de medicina veterinaria solo contemplan el 20% de 59 artículos estudiados del Código de Ética profesional. Además, es posible decir que los estudiantes de primero y quinto año, y los docentes no conocen a cabalidad los artículos del Código de Ética según la clasificación de la teoría de Kohlberg.
Knowledge, attitudes and practices surrounding sodium intake in Ecuador: a pilot study
Authors: Herrera Fontana Maria Elisa , Sisa Ivan , Mosquera Karen , Celi Maria Elisa , Teran Enrique
Published: December 2021

Objective To identify the main sources of sodium in the Ecuadorian diet and determine knowledge, attitudes and practices related to the use of salt/sodium.Materials and Methods A cross-sectional study was conducted by taking a convenience sample of 177 adults. Socio-demographic, anthropometric and clinical data were collected. Frequency of consumption of food items high in sodium and knowledge, attitudes and practices regarding salt intake were evaluated.Results Meat products, sugary drinks, sausages, canned fish and seasonings are the food items with the highest consumption and sodium content. Nearly 97% of participants had a misperception about their sodium intake. While 99% know that a diet high in salt causes health problems, only 38.4% take a systematic action to regulate their salt intake.Conclusions There were a common misperception about sodium consumption. Only a small number of people take an action to reduce their consumption, although these actions was ineffective.
Covid-19 en prisión. Una aproximación a la tendencia epidemiológica en Colombia
Authors: Piñeros Báez Victor Hugo
Published: December 2021

Objetivo Realizar una aproximación a la tendencia epidemiológica de la COVID-19 en las prisiones colombianas.Materiales y Métodos Se emplearon datos demográficos de morbilidad y mortalidad registrados entre abril y octubre de 2020 correspondientes a la población detenida en las prisiones nacionales. Para analizar la situación de la COVID-19 se consultaron los reportes de la Organización Panamericana de la Salud (OPS). Mediante el uso de MS-Excel y R, se realizó un análisis descriptivo y se calcularon indicadores epidemiológicos.Resultados Los datos revelan una progresión de la pandemia con un incremento de casos positivos, reclusos hospitalizados en unidades de cuidado intensivo (UCI) y muertes relacionadas. Entre abril y octubre de 2020 se reportaron 16 804 casos positivos de COVID-19, con 80 reclusos en UCI y 136 muertes relacionadas. De estas muertes, el 94,9% se reportaron en hombres y el 5,1%, en mujeres. Respecto a su distribución por edad, el 63,2% de las muertes se presentaron en población entre 60 y más años.Conclusiones La tendencia de la COVID-19 en prisión presenta un comportamiento similar a la registrada en Colombia. Es decir, una fase interpandémica con un aumento progresivo de casos, hospitalizados en UCI y muertes, un pico significativo en agosto y un decrecimiento en septiembre. Sin embargo, en octubre la tendencia se revierte y se presenta un aumento en la confirmación de casos. Los indicadores epidemiológicos muestran una situación desfavorable respecto a la población general. En agosto, la incidencia de casos fue 3,9 veces mayor. Mientras que, en octubre, la incidencia fue 1,5 veces mayor.
Transperiferismo, necropolítica y sufrimiento social. Etnografía experimental sobre las condiciones de vida de inmigrantes venezolanos en el Caribe colombiano
Authors: Alvarez Alvarez William Andres , Romero Tenorio José Manuel , Villadiego Álvarez Paulo
Published: December 2021

Objetivos En este trabajo exploramos la crueldad y el sufrimiento que experimentan inmigrantes venezolanos que habitan en un asentamiento irregular llamado Villa Caracas, en la periferia de Barranquilla. Nuestro objetivo principal se centró en analizar desde una perspectiva antropológica y filosófica la condición de lo humano, el dolor que toma forma a raíz de la extrema precariedad material manifiesta en el flujo transnacional migratorio entre Venezuela y Colombia.Método A través de una etnografía extendida por cerca de 6 meses, hecha mediante observación participante, entrevistas semiestructuradas y relatos de vida, describimos el sufrimiento social del inmigrante en su tránsito, asentamiento y supervivencia cotidiana.Resultados Los resultados preliminares de esta investigación nos llevaron a formular el concepto de transperiferismo como una categoría que engloba transversalmente el fenómeno migratorio con una perspectiva urbana.
Determinants of adherence to continuous positive airway pressure therapy in adults with obstructive sleep apnea
Authors: González Vélez Abel E. , De Castro Vergara José A. , Neva García Andrea P. , Castelblanco Diana I. , Isaza-Ruget Mario A.
Published: December 2021

Objectives Adherence to continuous positive airway pressure (CPAP) devices in patients with obstructive sleep apnea (OSA) determines the effectiveness of the treat- ment. Likewise, the assessment of the control of the disease must consider the infor- mation referred by the patient, among other value-based health measures related to the satisfaction of the intervention. The objectives of this study were a) Determine the factors related to adherence to CPAP devices in subjects with OSA affiliated to an insurance company of the healthcare system in Colombia. b) Assess symptom control associated to the disease from the individual ́s perspective and his/her satisfaction with the treatment received.
Materials and Methods 1,501 subjects with OSA were surveyed by telephone to explore: sociodemographic factors, habits and lifestyles, use of CPAP and its adverse events, control of the disease, comorbidities, access to care and therapy satisfaction. Using multilevel logistic regression techniques, the influence of the various factors on adherence to CPAP was analyzed, using Stata 13 software.
Results Adherence to CPAP therapy was of 58% and the control of symptoms was of 41.7%. The factors that determined the use of CPAP were knowledge on how the device operates, and the disturbances during sleep due to the mask or nasal pad. The- rapy satisfaction was predominantly very good or good.
Conclusion Even with moderate adherence values and a good experience with CPAP therapy, symptomatic control of the disease is poor. Many of the factors that affect the use of CPAP are modifiable with a proper approach by the devices ́ service provider.
Vulnerabilidade social e transtornos mentais
Authors: Zanardo Ana Beatriz Rizzo , Ventura Carla Aparecida Arena , Consule Rita de Cassia
Published: December 2021

A saúde mental representa parte essencial da vida das pessoas, podendo resultar no aumento da desigualdade de renda e de vulnerabilidade social. Assim, as relações entre saúde/doença mental e vulnerabilidade social incitam uma série de reflexões e de contextualizações para sua maior compreensão. Esta scoping review apresenta como objetivo mapear as produções científicas sobre as vulnerabilidades das pessoas com transtornos mentais em suas diferentes relações sociais. Divide-se em cinco etapas, com buscas nas bases de dados: MEDLINE via Pubmed; SCOPUS e Academic Search Premier, e busca nas referências dos artigos encontrados, a fim de responder à questão de pesquisa: “Como ocorre à vulnerabilidade das pessoas com transtorno mental em suas diferentes relações sociais?”. Foram encontrados 211 artigos e após as exclusões de estudos não pertinentes, foram incluídos 31 artigos. Os artigos foram organizados em 3 (três) categorias: 1 – a vulnerabilidade das pessoas com transtornos mentais e os serviços de saúde; 2 – a vulnerabilidade das pessoas com transtornos mentais e os determinantes sociais; e 3 – a vulnerabilidade das pessoas com transtornos mentais e a violência/vitimização. Dessa forma, sugere-se o desenvolvimento de mais estudos sobre a temática, assim como a reavaliação das políticas públicas voltadas às pessoas com transtornos mentais, no intuito de se tornarem mais eficazes, tanto na garantia dos direitos desse grupo como na manutenção de sua saúde mental.
O ensino de matemática no atendimento educacional especializado no contexto brasileiro
Authors: Schipanski Andressa Franciele Scambara , Borges Fábio Alexandre , Santos Talita Secorun dos
Published: December 2021

Com o presente artigo, discute-se o ensino e a aprendizagem em Matemática no ambiente Atendimento Educacional Especializado a partir de investigações voltadas para o contexto brasileiro. Para produção dos dados, de cunho bibliográfico, foram considerados periódicos científicos brasileiros online com foco em Educação Matemática divulgados no site da Sociedade Brasileira de Educação Matemática, e periódicos de Educação Especial qualificados no Qualis Capes (2013-2016) como A1, A2 e B1 na área de Ensino, o que resultou num total de 47 periódicos. A partir disso, a seleção dos artigos obedeceu aos seguintes critérios: a) referir-se a pesquisas brasileiras; b) conter no resumo uma das seguintes expressões: “Atendimento Educacional Especializado” (para os periódicos de Educação Matemática); e “Atendimento Educacional Especializado” e “Matemática” (para os periódicos de Educação Especial). Com isso, foram selecionados 13 textos, cuja análise foi encaminhada pela Análise Textual Discursiva, com a definição das seguintes unidades de análise: a) conhecimentos profissionais e acadêmicos do professor do AEE; b) o papel dos recursos pedagógicos no ensino de Matemática; c) os reflexos da colaboração entre professores da sala de aula comum e do AEE. Os resultados apontam que as discussões referentes a Educação Especial em uma perspectiva inclusiva precisam fazer parte dos cursos de formação inicial e continuada. Além disso, os estudantes apoiados pela Educação Especial têm melhores oportunidades de aprender quando suas diferenças são legitimadas, o que se manifesta particularmente a partir de diversificação de recursos didáticos, planejamento pautado nas potencialidades desses educandos e em colaboração entre os professores do AEE e da sala comum.
Printed text documents watermarking based on vertical word shift and word fragments brightness changing
Authors: Obydenkov Dmitry Olegovich , Frolov Alexander Evgenevich , Markin Yury Vitalievich , Fomin Stanislav Alexandrovich , Kondrat’ev Boris Vladimirovich
Published: December 2021

This paper describes the results of the development of methods for marking text documents represented as a raster image. An important feature of the algorithms is the possibility wipe current document mark and embed another one. The study refers to structural marking algorithms based on vertical word shifts and brightness changes of certain areas of the words. Segmentation tools are used to obtain document layout, BCH codes for error correction, a likelihood maximization method for label extraction, and a neural network for perturbed words recovery. Testing has proved the practical applicability of the algorithms with printing and scanning.
Developing an LLVM-based compiler for stack based TF16 processor architecture
Authors: Skvortsov Leonid Vladlenovich , Baev Roman Vyacheslavovich , Dolgorukova Ksenia Yurievna , Sharygin Eugene Yurievich
Published: December 2021

Development for stack-based architectures is usually done using legacy low level languages or assembly code, so there exists a problem of a high level programming language support for such architectures. In this paper we describe the development process of an LLVM/Clang-based C compiler for stack-based TF16 processor architecture. LLVM was used due to adaptation possibilities of its components for new architectures, such as disassembler, linker and debugger. Two compiler versions were developed. The first version generated code without using stack capabilities of TF16, treating it instead as a register-based architecture. This version was relatively easy to develop and it provided us a comparison point for the second one. In the second version we have implemented a platform independent stack scheduling algorithm that allowed us to generate code that makes use of the stack capabilities of the CPU. When comparing the two versions, a version that utilized stack capabilities generated code that was on average 35.7% faster and 50.8% smaller than the original version. The developed stack scheduling algorithm also allows to support other stack based architectures in LLVM toolchain.
AKSIOLOGI PENDIDIKAN KARAKTER BAGI KAUM MUDA REMAJA DI INDONESIA MENURUT PERSPEKTIF KI HAJAR DEWANTARA
Authors: Simbolon Clemen Jaya , Firmanto Antonius Denny
Published: December 2021

This study aims to deepen the value and benefits of character education for young people, especially among adolescents who are generally seventeen years old. And its relevance in the lives of teenagers today. The character education of young people is a major issue in Indonesia today. This arises through a phenomenon that often occurs among adolescents and is quite disturbing to society. Some of the phenomena that arise are children becoming unable to accept other people's opinions openly and kindly, lack of listening to parental advice, becoming thugs and drug addicts. This is triggered by the lack of character education that should be built from an early age. If a child grows up in a harmonious, harmonious and peaceful condition and situation, of course the child will have a good character, be able to listen to parental advice, and will have dreams in the future. This situation will be compared upside down when the child gets the opposite or less good educational process. The method I use in this research is to conduct a critical analysis by examining character development in adolescence. As material in this reflection, I use some theories sourced from several books as references to help explain the meaning and importance of character education for young people. Through this study I came to the conclusion that character education plays a very important role in understanding and finding solutions for the good and bad tendencies of young people, especially adolescents.
The Buddha's Path of Peace
Authors: Gombrich Richard
Published: December 2021

The Buddha’s Path of Peace sets out the basic instructions for the life-changing way of the Buddha (the so-called “Noble Eightfold Path”) wholly in the context of contemporary and everyday life, personal experience, human relationships, work, environmental concern and the human wish for peace. In this book, the core of the Buddha’s teaching is comprehensively cast in modern models of thought—borrowed from science and philosophy—and informed by contemporary concerns. The reader, who may be completely new to Buddhism, is accompanied along the Path with practical exercises that are fully explained. The Path begins with an introductory overview and then proceeds through Right Speech, Right Acting, Right Livelihood, Right Effort, Right Concentration, Right Mindfulness, Right Understanding and Right Resolve, and concludes with a short chapter on the relevance of the Path to the multiple crises facing the world today. The reader is mentored throughout by practical meditational and contemplative exercises, with tables, diagrams, analogies and stories. Gradually the reader who has followed this handbook with commitment will feel the benefits of growing peacefulness, wisdom and compassion.
Antoni Andreu y la filosofía escotista. Presentación
Authors: Cabré-Duran María , Mensa-i-Valls Jaume
Published: December 2021

Antoni Andreu fue un pensador clave en la formación y difusión del pensamiento escotista. El objetivo del presente número monográfico consiste en arrojar un poco de luz sobre estos dos aspectos fundamentales de la obra de Antoni Andreu: el pensamiento filosófico de Andreu y las diferencias que presenta respecto al de Escoto, y su influencia posterior, fundamentalmente en autores de la modernidad.
Un crítico de Antonio Andrés: Bartolomeo Spina y sus «Defensiones» de la metafísica de Tomás de Aquino
Authors: Mensa-i-Valls Jaume
Published: December 2021

Con su Expositio in XII libros Metaphysicae Aristotelis Antonio Andrés ofrece una alternativa escotista a la obra homónima de Tomás de Aquino y trata de superarla. En esta obra Andrés refuta algunas interpretaciones del Aquinate. El objetivo del presente artículo consiste en analizar la respuesta de Bartolomeo Spina a las críticas de Andrés. Las Defensiones de Spina fueron publicadas en 1517 y posteriormente se integraron en los Commentaria in XII libros Metaphysicorum Aristotelis del Aquinate que Spina editó diversas veces.
Survival Rates of Implants That Have Compromised the Adjacent Teeth and the Associated Complications: An Opg Retrospective Study
Authors: Küçükkurt Sercan , Moharamnejad Nima
Published: December 2021

This retrospective study evaluated survival rates of implants compromising adjacent teeth and associated complications. Medical records and orthopantomographic images of 1132 patients and 1478 implants were retrospectively analyzed. Finally, 96 patients (52 females, 44 males) with 111 malpositioned implants were included in the study. The mean follow-up of the study was 32 ± 14 months. The patients were divided into 2 core groups: (1) adjacent teeth and dental implants were considerably close but tangent to each other (TAN), and (2) dental implant cutting the roots of the adjacent tooth (CUT). In addition, the CUT group was divided into 2 subcategories considering the possible cause of malangulation as angled implant (AI) or angled adjacent tooth (AT). Damage to adjacent teeth, future treatment requirements, and the survival rates of the implants were recorded. Among the 111 implants, 4 (3.6%) implants failed, all of which belonged to the CUT category and the AI subgroup. Among the 88 preoperatively vital adjacent teeth, root canal treatment was performed in 18 (20.5%) teeth, whereas 2 (2.3%) teeth were extracted due to malpositioned implanting in follow-ups. The placement of implants too close to the adjacent teeth and even cutting direction did not have a statistically significant effect on the survival rates of implants. However, this could cause adjacent teeth to undergo unnecessary root canal treatment or extraction. Patients with malpositioned adjacent teeth or dilacerated root(s) adjacent to the edentulous area are at a higher risk for malpositioned implant complications. Most implant malposition complications are observed in the first premolar region (37% cases). Therefore, more attention should be given while placing implants in the first premolar region.
Tracking Tag Stabilization With a Small-Diameter Implant in an Edentulous Mandible to Assist Dynamically Navigated Surgery: A Case Report
Authors: Tran Dan , Deeb Janina Golob , Wojnarwsky Pandora K. L. , Deeb George R.
Published: December 2021

This report describes the use of a temporary dental implant to secure a radiographic fiducial marker and patient-tracking tag to an edentulous mandible for dynamically guided implant placement into a fibula microvascular free flap. A small-diameter dental implant was placed into the anterior mandible to secure a radiographic fiducial marker followed by a patient tag. The patient tag allowed for tracking of the patient's mandible during placement of endosseous dental implants. Four endosseous dental implants were successfully placed into the edentulous fibula free flap mandibular reconstruction. Dynamic navigation using a small-diameter implant to secure radiographic fiducial markers and patient tags provides a novel technique to place implants into an edentulous microvascular free flap with minimal incision and reflection of soft tissue.
IT SERVICE OF THE MODERNIZED GRAIN MOISTURIZING MACHINE
Authors: Gaponyuk O. , Aleksashin A. , Goncharuk G.
Published: December 2021

The purpose of this work is to increase the efficiency of the grain humidifier, which is part of the system for preparing grain for grinding, ensuring the reliability of machines, its productivity, reducing energy consumption and improving the quality of the finished product. products by introducing automation based on SMART technology, defined as self-monitoring and reporting technology.SMART technology is inextricably linked with a monitoring and data collection system designed to monitor and automatically manage a large number of remote, geographically dispersed sites. In addition, this system provides long-term archiving of the received data, which allows the dispatcher to monitor the operation of the relevant equipment, responding with an IT service program.A remote automated monitoring and control system for the production line on which the dampening machine is installed ensures optimum performance. Rotary machines for grain moistening are considered. At flour mills, as well as at other enterprises, such machines are used at the stage of main moistening and for additional moistening before feeding the grain to the grinding workshop. A1-BShU-2 machines are designed for basic grain moistening.Humidifiers are installed in front of the grain bins in the production lines of the preparatory departments of flour mills to remove excess moisture.At the same time, machines for washing grain and, accordingly, all equipment for treating wastewater and treated waste can be excluded from the technological schemes of enterprises, therefore, an urgent task is to increase productivity. Air humidifier A1-BShU-2 by improving the design of the working body and automation of the machine. generally.In this regard, it is necessary to intensify the process of moistening the grain due to the optimal location of the blades for moving the grain (races) and mixing (whips) on the shaft of the working body, apply a drive motor speed control system using a frequency converter.The article shows ways to improve the performance of a humidifier, as well as issues of control and management of the optimal mode of its operation. For example, Table 1 is presented in the form of a layout, which shows in what form the information can be provided to the operator and stored in the archive.
On tensor products of nuclear operators in Banach spaces
Authors: Reinov Oleg
Published: December 2021

The following result of G. Pisier contributed to the appearance of this paper: if a convolution operator ★f : M(G) → C(G), where $G$ is a compact Abelian group, can be factored through a Hilbert space, then f has the absolutely summable set of Fourier coefficients. We give some generalizations of the Pisier's result to the cases of factorizations of operators through the operators from the Lorentz-Schatten classes Sp,q in Hilbert spaces both in scalar and in vector-valued cases. Some applications are given.
On the geodesic mappings of pseudo-Riemannian spaces with special supplementary tensor
Authors: Кіосак Володимир Анатолійович , Пришляк Олександр Олегович , Лесечко Олександр Васильович
Published: December 2021

В роботі досліджуються два псевдоріманових простори, які мають спільні геодезичні лінії. Вимагається виконання умов алгебраїчного та диференціального характеру на тензор Рімана одного з них. А операція опускання індексів та обчислення коваріантної похідної здійснюється відносно метрики та об'єктів зв'язності іншого простору. Для досліджень використовується спеціальний допоміжний тензор. Доведено, що виконання додаткових умов приводить до просторів, що не допускають нетривіальних геодезичних відображень, або простори належать до еквідістантних просторів. Використовуються тензорні методи без обмежень на знак метрики.