Liderazgo auténtico y compromiso organizacional en la municipalidad distrital de Huaura, 2021

Objetivo: Demostrar la relación entre el liderazgo auténtico con el compromiso organizacional en la Municipalidad Distrital de Huaura, 2021. Métodos: la población de estudio fueron 155 trabajadores de la entidad edil, seleccionados mediante una fórmula estadística para muestra. Considerándose como dimensiones el liderazgo auténtico y compromiso organizacional. Se usaron los instrumentos Authentic leadership questionnaire ALQ traducido al español, adaptado por María Elena Magallanes (2016) y el cuestionario para la percepción del compromiso organizacional de Meyer y Allen, adaptado por María Elena Magallanes (2016). Resultados: Los resultados muestran que el 66.0% de los trabajadores ediles reconocen el liderazgo del gerente municipal en sus dimensiones transparencia en las relaciones, moral interiorizada y el procesamiento balanceado, respecto al compromiso organizacional, los trabajadores señalan su compromiso afectivo (64.8%), de permanencia (60.8%) y el normativo (72.5%). Conclusión: Los resultados demuestran que existe relación positiva significativa entre el liderazgo auténtico y el compromiso organizaciona

Physical-chemical and mineralogical characterization of fine aggregates from construction and demolition waste recycling plants

Construction and demolition waste (CDW) represents around 31% of all waste produced in the European Union. It is today acknowledged that the consumption of raw materials in the construction industry is a non-sustainable activity. It is thus necessary to reduce this consumption, and the volume of CDW dumped, by using this waste as a source of raw materials for the production of recycled aggregates. One potential use of these aggregates is their incorporation in reinforced concrete as a replacement of natural aggregates. A concrete that incorporates these aggregates and still performs well requires them to be fully characterized so that their behaviour within the concrete can be predicted. Coarse recycled aggregates have been studied quite thoroughly, because they are simpler to reintroduce in the market as a by-product, and so has the performance of concrete made with them. This paper describes the main results of research designed to characterize the physical and chemical properties of fine recycled aggregates for concrete production and their relationship with mineralogical composition and preprocessing. The constraints of the incorporation of fine aggregates in reinforced concrete are discussed. It is shown that, unless a developed processing diagram is used, this application is not feasible. (C) 2013 Elsevier Ltd. All rights reserved

Tools for microwave radio communications system design

This paper describes a software package for the design, analysis, and simulation of microwave radio systems. This article is mainly directed to engineering education. The software can also be used to aid in the Hybrid Microwave Integrated Circuit Design needs in industry. Different Design procedures for various types of microwave circuit are used. Special emphasis is given in the progressive use of simulation techniques to stimulate learner activity and overcome some difficulties inherent to the experimental subject and theoretical results. The developed tool has been used in the Microwave Circuits discipline for the graduation course in electric engineering of the University of Brasilia, Brazil

Desarrollo de un sistema de sensado y monitoreo de pH para una planta de tratamiento de remoción de arsénico en agua

El arsénico (As) es uno de los elementos que, por su elevada toxicidad, ejerce una significativa limitación sobre la potabilidad del agua. Elevadas concentraciones (>10 μg/l, límite OMS) afectan a 140 millones de personas en 70 países a lo largo del mundo. La llanura Chaco-Pampeana es una región reconocida a nivel mundial por su alto contenido de As en agua subterránea, donde el área involucrada abarca 106 km2 de nuestro país, afectando a 4 millones de habitantes. En la Provincia de Buenos Aires un 87 % del territorio se ve afectado, y se han identificado zonas con niveles de As >100 μg/l, principalmente en las zonas sur y noroeste. La ingesta prolongada de agua con tenores elevados de As causa daños al organismo, dando lugar a una enfermedad conocida como Hidroarsenicismo crónico regional endémico (HACRE). Produce cáncer de riñón, hígado, pulmón, entre otros, además de otros efectos. Se acumula en huesos, músculos y piel. Se fija en pelos y uñas produciendo hipo/hiperpigmentación, queratosis y cáncer de piel. Desde nuestra Facultad y el CONICET, en el marco de diferentes proyectos de Investigación y de Extensión y previamente a este trabajo, fue desarrollada una planta modular para el tratamiento de aguas contaminadas con As, basada en la técnica de hierro cerovalente. Esta planta consta de varias etapas, algunas de las cuales requieren que el valor de pH se mantenga en un rango determinado para la adecuada y eficiente ocurrencia de los procesos fisicoquímicos involucrados. Para ello, inicialmente se emplearon instrumentos comerciales que miden y controlan automáticamente el nivel de pH, pero que resultan costosos y que no permiten el registro automático ni el almacenamiento digital de los valores detectados, para su posterior análisis. En este sentido, los valores de referencia para los instrumentos de control se vienen estableciendo con base en observaciones y mediciones presenciales y, consecuentemente, en tiempos discretos y espaciados, requiriendo de viajes de miembros del equipo hasta la planta instalada en la localidad de Pipinas (Bs. As.).Facultad de Ingenierí

A list of land plants of Parque Nacional do Caparaó, Brazil, highlights the presence of sampling gaps within this protected area

Brazilian protected areas are essential for plant conservation in the Atlantic Forest domain, one of the 36 global biodiversity hotspots. A major challenge for improving conservation actions is to know the plant richness, protected by these areas. Online databases offer an accessible way to build plant species lists and to provide relevant information about biodiversity. A list of land plants of “Parque Nacional do Caparaó” (PNC) was previously built using online databases and published on the website "Catálogo de Plantas das Unidades de Conservação do Brasil." Here, we provide and discuss additional information about plant species richness, endemism and conservation in the PNC that could not be included in the List. We documented 1,791 species of land plants as occurring in PNC, of which 63 are cited as threatened (CR, EN or VU) by the Brazilian National Red List, seven as data deficient (DD) and five as priorities for conservation. Fifity-one species were possible new ocurrences for ES and MG states

Health literacy and health outcomes in very old patients with heart failure

INTRODUCTION AND OBJECTIVES: Health literacy (HL) has been associated with lower mortality in heart failure (HF). However, the results of previous studies may not be generalizable because the research was conducted in relatively young and highly-educated patients in United States settings. This study assessed the association of HL with disease knowledge, self-care, and all-cause mortality among very old patients, with a very low educational level. METHODS: This prospective study was performed in 556 patients (mean age, 85 years), with high comorbidity, admitted for HF to the geriatric acute-care unit of 6 hospitals in Spain. About 74% of patients had less than primary education and 71% had preserved systolic function. Health literacy was assessed with the Short Assessment of Health Literacy for Spanish-speaking Adults questionnaire, knowledge of HF with the DeWalt questionnaire, and HF self-care with the European Heart Failure Self-Care Behaviour Scale. RESULTS: Disease knowledge progressively increased with HL; compared with being in the lowest (worse) tertile of HL, the multivariable beta coefficient (95%CI) of the HF knowledge score was 0.60 (0.01-1.19) in the second tertile and 0.87 (0.24-1.50) in the highest tertile, P-trend = .008. However, no association was found between HL and HF self-care. During the 12 months of follow-up, there were 189 deaths. Compared with being in the lowest tertile of HL, the multivariable HR (95%CI) of mortality was 0.84 (0.56-1.27) in the second tertile and 0.99 (0.65-1.51) in the highest tertile, P-trend = .969. CONCLUSIONS: No association was found between HL and 12-month mortality. This could be partly due to the lack of a link between HL and self-care

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

Deslizamento de anel tratado por dilatação endoscópica após derivação gástrica em Y de Roux com anel

Introdução: O tratamento cirúrgico da obesidade mórbida encontra bons resultados com a cirurgia de derivação gástrica em Y de Roux (DGYR). A adição de anel restritivo a esta técnica pode aumentar a eficácia, porém este anel pode sofrer um deslizamento distal, necessitando de reoperação para a sua remoção. Objetiva-se descrever a técnica e os resultados da dilatação endoscópica no tratamento do deslizamento de anel, analisando a sua eficácia e segurança. Pacientes e métodos: É um estudo retrospectivo que analisa os casos de deslizamento de anel tratados nos últimos cinco anos no Hospital das Clínicas da Universidade Federal de Pernambuco e em um serviço privado da cidade de Recife. A casuística contém 39 pacientes submetidos a DGYR com anel, o qual apresentou deslizamento que causou estenose da via de saída gástrica. Destes, 35 foram tratados por dilatação endoscópica com balão, cujos resultados foram avaliados para determinar a eficácia e a segurança do método. Resultados: O procedimento promoveu 100% de alívio sintomático nos pacientes estudados. Foram realizadas em média 1,8 sessões para alívio dos sintomas. O tempo médio de permanência hospitalar foi de 14,4 horas. Houve ruptura do fio que amarrava internamente o anel em 65,7% dos casos. Como complicação do método, um paciente apresentou sangramento auto-limitado e quatro evoluíram com migração intragástrica do anel. Conclusão: O tratamento do deslizamento de anel após cirurgia de DGYR com anel encontra na dilatação endoscópica uma alternativa segura e efica

Propuesta de un Sistema de Gestión Ambiental basado en la norma ISO 14001:2015 para la Empresa Sertraven Importaciones EIRL, Arequipa - 2022

Esta tesis denominada “Propuesta de un Sistema de Gestión Ambiental basado en la norma ISO 14001:2015 para la empresa SERTRAVEN IMPORTACIONES EIRL, Arequipa - 2022” tuvo por objetivo proponer un SGA fundamentado en la Normativa ISO 14001:2015 en la organización en estudio. El estudio fue abordado desde el punto de vista de un enfoque cuantitativo de tipología aplicada con un nivel descriptivo, con un diseño no experimental de corte transversal. Para realizar el diagnóstico de la situación se aplicó un Check List y se obtuvo un cumplimiento del 25% de los requerimientos, de igual manera con la Matriz de identificación de aspectos y evaluación de impactos ambientales en el diagnóstico, se observa que 55,56% de los aspectos identificados presentan una significancia alta, un 33,33% presentan significancia o riesgo y un 11,11% presentan un riesgo bajo para el ambiente. Se diseñó una propuesta de un Sistema de Gestión Ambiental, tomando como base los requerimientos de la normativa ISO 14001:2015, así como la formulación del presupuesto estimado, buscando minimizar los riesgos ambientales presentes en la empresa, planteando que debe cumplirse a cabalidad para manera evitar sanciones. En cuanto al presupuesto, la inversión a realizar la empresa es de S/ 93.700,19, obteniendo un B/C de 2,02, un TIR de 93% indicadores que avalan la viabilidad económica de la propuesta realizada