Reconstruction after a programmed disaster. The construction of a dam: Zuri and Cantalupo Ligure, Italy

In this essay we present two case studies of the research “The ‘Osso’ of Italy” of submerged settlements: restoration, reconstruction and translation of memories. The main objective is an in-depth and comprehensive study of submerged settlements as consequence of the construction of water reservoirs. These operations which took place mostly between the 1930s and the 1950s, common in Italy and Spain, triggered three phenomena: the disappearance of villages and their rediscovery for tourism purposes; the construction of new population centres with the related problem of the production of memories; and the translation of memories of buildings dismounted before their submersion into new buildings, or parts of them. These two cases are related because the first one, the submersion of the village of Zuri in Sardinia in the early 1920s seems to have become a model of reconstruction for other cases in Italy, while the second one, the Cantalupo Ligure (Alessandria) case, was finally not carried out. The “planned” disaster which represents the construction of a dam is a good opportunity to analyse the reconstruction plans which involved the population historically and which at present constitutes an opportunity to reflect on the needs of the population when their homes are about to disappear. It enables us also to reflect on the topic of “collective memory” in order to build new concepts through which to analyse and design very contemporary fields of study, themes and topics, such as those related to villages in areas with high seismic risk or hydro-geological instability

Effects of extreme temperature on the European equity market

The increasing frequency and severity of extreme temperatures are potential threats to financial stability. Indeed, physical risk related to these extreme phenomena can affect the whole financial system and, in particular, the equity market. In this study,we analyze the impact of extreme temperature exposure on firms' performance in Europe over the XXI century. We show that extreme temperatures can affect firms' profitability depending on their industry and the quarter of the year. Our results are of interest for both investors operating in the equity market and for regulators in charge of securing financial stability

Prevalence of symptomatic and silent stress-induced perfusion defects in diabetic patients with suspected coronary artery disease referred for myocardial perfusion scintigraphy

Purpose: Silent myocardial ischaemia—as evaluated by stress-induced perfusion defects on myocardial perfusion scintigraphy (MPS) in patients without a history of chest pain—is frequent in diabetes and is associated with increased rates of cardiovascular events. Its prevalence has been determined in asymptomatic diabetic patients, but remains largely unknown in diabetic patients with suspected coronary artery disease (CAD) in the clinical setting. In this study we therefore sought (a) to determine the prevalence of symptomatic and silent perfusion defects in diabetic patients with suspected CAD and (b) to characterise the eventual predictors of abnormal perfusion. Methods: The patient population comprised 133 consecutive diabetic patients with suspected CAD who had been referred for MPS. Studies were performed with exercise (41%) or pharmacological stress testing (1-day protocol, 99mTc-sestamibi, 201Tl or both). We used semi-quantitative analysis (20-segment polar maps) to derive the summed stress score (SSS) and the summed difference score (SDS). Results: Abnormal MPS (SSS≥4) was observed in 49 (37%) patients (SSS=4.9±8.4, SDS=2.4±4.7), reversible perfusion defects (SDS≥2) in 40 (30%) patients [SSS=13.3±10.9; SDS=8.0±5.6; 20% moderate to severe (SDS>4), 7% multivessel] and fixed defects in 21 (16%) patients. Results were comparable between patients with and patients without a history of chest pain. Of 75 patients without a history of chest pain, 23 (31%, 95% CI=21-42%) presented reversible defects (SSS=13.9±11.3; SDS=7.4±1.2), indicative of silent ischaemia. Reversible defects were associated with inducible ST segment depression during MPS stress [odds ratio (OR)=3.2, p<0.01). Fixed defects were associated with erectile dysfunction in males (OR=3.7, p=0.02) and lower aspirin use (OR=0.25, p=0.02). Conclusion: Silent stress-induced perfusion defects occurred in 31% of the patients, a rate similar to that in patients with a history of chest pain. MPS could identify these patients with a potentially increased risk of cardiovascular event

Aprendizaje significativo del pensamiento espacial y sistemas geométrico, integrando las TIC’s a través de actividades lúdicas en el primer ciclo de básica

El presente trabajo tiene como fin diseñar, desarrollar e implementar un EVA (entorno virtual de aprendizaje), para el primer ciclo de la básica primaria, como espacio propicio para que los estudiantes obtengan recursos informativos y medios didácticos, articulando las TIC al proceso educativo, como una herramienta que facilite el desarrollo del pensamiento espacial y sistema geométrico en el aula y fortalezca los procesos de enseñanza aprendizaje. Además de permitirle a los estudiantes interactuar de una manera virtual y lúdica y realizar actividades encaminadas al proceso de construcción del pensamiento ya mencionado, donde puedan formular, resolver, poner en juego, difundir, enriquecer y ampliar los conocimientos matemáticos, para mejorar los desempeños en las competencias de dicha área, teniendo en cuenta sus ritmos de aprendizaje. Este entorno fue diseñado con el propósito de obtener un ambiente dinámico, liviano, ágil y de fácil manejo para los usuarios que lo utilicen, ya sean estudiantes o docentes. En cuanto al proceso de enseñanza-aprendizaje, que permita mejorar los indicadores de desempeño en las competencias matemáticas, se concluye que efectivamente se logró materializar esta creación mediadas por las TIC y fundamentada metodológica y conceptualmente en el constructivismo.This work aims to design, develop and implement an EVA (Virtual Learning Environment) for the first cycle of elementary school, as a place suitable opportunities for students to obtain information resources and teaching aids, linking the TIC to the educational process, as a tool to facilitate the development of spatial thinking and geometric system in the classroom and strengthen teaching and learning processes. In addition to allow the students to interact in a virtual and playful ways and do activities aimed at building process mentioned thinking, where they can formulate, solve, put into play, disseminate, enrich and expand the mathematical knowledge, to improve performance in competence in that area, taking into account their learning rates. This environment was designed with the purpose of obtaining a dynamic environment, lightweight, flexible and easy to use for users who use it, whether students or teachers. Regarding the teaching-learning process that improves the performance indicators in math skills, it is concluded that effectively achieved materialize this creation mediated by TIC and methodologically and conceptually based on constructivism

Factores asociados al inicio de la actividad sexual en estudiantes de una institución educativa nivel secundaria, Chiclayo 2024

Introducción: La actividad sexual temprana en estudiantes de secundaria está influenciada por una interacción compleja de factores biopsicosociales. Factores familiares, como la estructura familiar y la comunicación parental, juegan un papel crucial, al igual que los contextos sociales y culturales (3). El acceso a la educación sexual integral y la influencia de los medios de comunicación también son determinantes importantes. Además, factores individuales como la autoestima, la búsqueda de identidad y la presión de grupo contribuyen significativamente (5). Objetivo: Determinar los factores asociados al inicio de la actividad sexual en estudiantes de una institución educativa en Chiclayo en 2024. Métodos: Esta investigación fue de tipo cuantitativa descriptiva de corte transversal, la muestra estuvo conformada por 195 estudiantes de la institución educativa los cuales respondieron una encuesta. Resultados: Los resultados permiten afirmar que los factores personales tienen un valor de 31,801 de chicuadrado, los factores sociales contaron con un valor de 9,438 de chi-cuadrado y los factores demográficos con un valor de 29,945 de chi-cuadrado. Conclusiones: Se logró concluir que si existe una asociación significativa entre los factores y el inicio de la actividad sexual en los estudiantes de la institución educativa de Chiclayo.TesisCalidad de vida, promoción de la salud del individuo y la comunidad para el desarrollo de la socieda

Preparation and characterisation of calcined Mg/Al hydrotalcites impregnated with alkaline nitrate and their activities in the combustion of particulate matter

The effect of incorporating alkaline nitrates in hydrotalcites for use in the combustion of particulate matter from diesel emissions has been studied. The catalysts were characterised by X-ray diffraction (XRD), N2 adsorption, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), elemental analysis (EA), atomic absorption spectrophotometry (AAS) temperature programmed reduction (TPR) and Fourier transform infrared spectroscopy (FTIR). Activity measurements were carried out using a thermobalance in air and using a fixed-bed reactor with a NO/O2 flow. The observed activities decreased in the following order: HTMgAlcCs > HTMgAlcK > HTMgAlcLi > HTMgAlc.Fil: Comelli, Nora Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Ruiz, Maria Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Merino, Nora Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Lick, Ileana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Rodríguez Castellón, E.. Universidad de Málaga. Facultad de Ciencias. Departamento de Química Inorgánica, Cristalografía y Mineralogía; EspañaFil: Jiménez López, A.. Universidad de Málaga. Facultad de Ciencias. Departamento de Química Inorgánica, Cristalografía y Mineralogía; EspañaFil: Ponzi, Marta Isabel

Enfermagem em cardiologia: estado da arte e fronteiras do conhecimento

Univ Fed Sao Paulo, Paulista Nursing Sch, Sao Paulo, BrazilUniv Fed Sao Paulo, Paulista Nursing Sch, Sao Paulo, BrazilWeb of Scienc

Propane and naphthalene oxidation over gold-promoted cobalt catalysts supported on Zirconia

Zirconia-supported gold-promoted cobalt catalysts were synthesized and tested for the complete oxidation of propane and naphthalene. The catalysts were characterized by BET surface area, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), powder X-ray diffraction (XRD), transmission electron microscopy (TEM), temperature-programmed reduction (TPR), and X-ray photoelectron spectroscopy (XPS). In both propane and naphthalene combustion reactions, the results obtained indicate that catalysts formulated with Co3O4 are more active than those containing only Au. Catalysts prepared using the deposit/precipitation (DP) method have better activity than those in which the traditional technique is used. Gold addition using the DP methods generates a promoting effect on the activity of cobalt-containing catalysts. The AuDpCoZt catalyst was found to be the most active for both propane and naphthalene combustion. The catalytic behavior of this sample is associated with a synergic effect between gold, cobalt, and the support, which is also evidenced by an increase in the reducibility of this catalytic system. The effect of the presence of NO in the feed was also analyzed for propane combustion.Fil: Leguizamón Aparicio, María Silvia del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Ruiz, Maria Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Ocsachoque, Marco Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Ponzi, Marta Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Rodríguez Castellón, Enrique. Universidad de Málaga. Facultad de Ciencias; EspañaFil: Lick, Ileana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentin

Zirconia-Supported Copper and KNO3 Catalysts for Diesel Soot Combustion. Deactivation by Hydrotreatment and SO2

In this study, the sulfur tolerance and hydrothermal stability of Cu-KNO3/ZrO2 catalysts in catalytic diesel soot oxidation were investigated. Supported alkaline nitrate catalysts have shown excellent activity for soot oxidation in the presence of O2 or NO/O2. High-temperature water vapor treatments do not affect the catalytic activity, suggesting a good hydrothermal stability of the catalysts. Treatments performed at high SO2 concentration lead to a partial deactivation of the catalysts for the combustion reaction in the presence of O2. The presence of copper improves the sulfur tolerance of the KNO3/ZrO2 catalyst for the combustion of soot in the presence of NOx. NO/O2 present in the feed flow of the reactor can regenerate in situ nitrate anions that provide the redox cycles required for the reaction.Fil: Mosconi, Sandra Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Ruiz, Maria Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Leguizamón Aparicio, María Silvia del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Ponzi, Marta Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Lick, Ileana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Ponzi, Esther Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentin