Weighted inequalities and vector-valued Calderón-Zygmund operators on non-homogeneous spaces

Recently, F. Nazarov, S. Treil and A. Volberg (and independently X. Tolsa) have extended the classical theory of Calderón-Zygmund operators to the context of a "non-homogeneous" space (X, d, µ), where, in particular, the measure µ may be non-doubling. In the present work we study weighted inequalities for these operators. Specifically, for 1 < p < [infinity], we identify sufficient conditions for the weight on one side, which guarantee the existence of another weight in the other side, so that the weighted Lp inequality holds. We deal with this problem by developing a vector-valued theory for Calderón-Zygmund operators on non-homogeneous spaces which is interesting in its own right. For the case of the Cauchy integral operator, which is the most important example, we even prove that the conditions for the weights are also necessary

Inteligencia emocional y estilos de liderazgo en directivos de entidades financieras, Trujillo - 2023

Esta investigación ha considerado por objetivo determinar la relación de la inteligencia emocional y los estilos de liderazgo en directivos de entidades financieras, Trujillo – 2023 empleando un tipo de investigación básica, de diseño no experimental, correlacional en una muestra formada por 9 directivos de instituciones financieras: Compartamos financiera (2), Crediscotia (3), Confianza (1), Proempresa (1), Qapaq (1), Efectiva (1) a quienes se les aplicó el instrumento de Inteligencia Emocional y una muestra formada por 139 colaboradores de dichas instituciones; los principales resultados mostraron que existe relación positiva moderada entre la inteligencia emocional y el estilo de liderazgo transformacional y transaccional, con significancias de 0.000 pero no existe relación entre inteligencia emocional y estilo de liderazgo laizzez faire; asimismo se obtuvo un coeficiente de Spearman de 0.558 y una significancia de 0.000 < 0.05 indicando relación entre las variables, por lo cual se aceptó la hipótesis afirmativa rechazando la nula; se concluyó que existe relación moderada entre la inteligencia emocional y los estilos de liderazgo en los directivos de entidades financierasThis research has considered the objective of determining the relationship between emotional intelligence and leadership styles in managers of financial institutions, Trujillo - 2023 using a type of basic research, non-experimental, correlational design in a sample made up of 9 managers of financial institutions. : Compartamos financial (2), Crediscotia (3), Confianza (1), Proempresa (1), Qapaq (1), Efectiva (1) to whom the Emotional Intelligence instrument was applied and a sample made up of 139 collaborators of said institutions; The main results showed that there is a moderate positive relationship between emotional intelligence and the transformational and transactional leadership style, with significance of 0.000, but there is no relationship between emotional intelligence and the laizzes faire leadership style; Likewise, a Spearman coefficient of 0.558 and a significance of 0.000 < 0.05 was obtained, indicating a relationship between the variables, for which the affirmative hypothesis was accepted, rejecting the null; It was concluded that there is a moderate relationship between emotional intelligence and leadership styles in managers of financial entitiesTesi

Diseño Para El Mejoramiento De La Carretera Del Tramo Shiracorral – Shuyuc, Distrito De Sarín, Provincia De Sánchez Carrión, Departamento La Libertad

El presente trabajo de Investigación, denominado: “Diseño para el Mejoramiento de la Carretera del tramo Shiracorral – Shuyuc, Distrito de Sarín, Provincia de Sánchez Carrión, Departamento La Libertad”, se realiza por el deficiente servicio que presta; siendo las épocas de lluvia las más críticas, convirtiéndola en zona intransitable, debido a la ocurrencia de derrumbes, huaycos y erosión de la plataforma, todo esto por la inexistencia de sistema de drenaje. Se ha realizado los siguientes estudios: Levantamiento topográfico: se determinó que el terreno es accidentado tipo 3. Estudio de suelo: la carretera está compuesta por arcilla con arena y arcilla con grava. Estudio hidrológico: se diseñó cuentas triangulares de 1.00 m de ancho por 0.40m de alto, 16 alcantarillas de alivio de 24” y 01 badén. Diseño geométrico de la carretera: velocidad directriz es de 30 km/h, radio mínimo en curvas simples 25 m, curvas de volteo radio mínimo 30 m, pendiente máxima 10 %, ancho de carril 3.00m, berma de 0.50m, peralte máximo de 12%, peralte mínimo de 2.5 %. Diseño de pavimento: se determinó el número de repeticiones de EE=16,395.96, espesor de mejoramiento de subrasante=0.25 m, espesor de sub base=0.15m, espesor de base=0.25m y espesor de carpeta de rodadura=0.025m. Señalización: se ha implementado todas las señales necesarias para un tránsito seguro en toda la vía. Estudio de impacto ambiental: se terminó a través de la matriz de Leopold los impactos positivos y negativos que podría generar el presente proyecto. Análisis de costos unitarios y presupuestos: el costo total del proyecto es de S/ 6´621,245.16

Diseño Para El Mejoramiento De La Carretera Del Tramo Shiracorral – Shuyuc, Distrito De Sarín, Provincia De Sánchez Carrión, Departamento La Libertad

El presente trabajo de Investigación, denominado: “Diseño para el Mejoramiento de la Carretera del tramo Shiracorral – Shuyuc, Distrito de Sarín, Provincia de Sánchez Carrión, Departamento La Libertad”, se realiza por el deficiente servicio que presta; siendo las épocas de lluvia las más críticas, convirtiéndola en zona intransitable, debido a la ocurrencia de derrumbes, huaycos y erosión de la plataforma, todo esto por la inexistencia de sistema de drenaje. Se ha realizado los siguientes estudios: Levantamiento topográfico: se determinó que el terreno es accidentado tipo 3. Estudio de suelo: la carretera está compuesta por arcilla con arena y arcilla con grava. Estudio hidrológico: se diseñó cuentas triangulares de 1.00 m de ancho por 0.40m de alto, 16 alcantarillas de alivio de 24” y 01 badén. Diseño geométrico de la carretera: velocidad directriz es de 30 km/h, radio mínimo en curvas simples 25 m, curvas de volteo radio mínimo 30 m, pendiente máxima 10 %, ancho de carril 3.00m, berma de 0.50m, peralte máximo de 12%, peralte mínimo de 2.5 %. Diseño de pavimento: se determinó el número de repeticiones de EE=16,395.96, espesor de mejoramiento de subrasante=0.25 m, espesor de sub base=0.15m, espesor de base=0.25m y espesor de carpeta de rodadura=0.025m. Señalización: se ha implementado todas las señales necesarias para un tránsito seguro en toda la vía. Estudio de impacto ambiental: se terminó a través de la matriz de Leopold los impactos positivos y negativos que podría generar el presente proyecto. Análisis de costos unitarios y presupuestos: el costo total del proyecto es de S/ 6´621,245.16

Weighted norm inequalities, off-diagonal estimates and elliptic operators. Part I: General operator theory and weights

This is the first part of a series of four articles. In this work, we are interested in weighted norm estimates. We put the emphasis on two results of different nature: one is based on a good-$\lambda$ inequality with two-parameters and the other uses Calder\'on-Zygmund decomposition. These results apply well to singular 'non-integral' operators and their commutators with bounded mean oscillation functions. Singular means that they are of order 0, 'non-integral' that they do not have an integral representation by a kernel with size estimates, even rough, so that they may not be bounded on all $L^p$ spaces for $1 < p < \infty$. Pointwise estimates are then replaced by appropriate localized $L^p-L^q$ estimates. We obtain weighted $L^p$ estimates for a range of $p$ that is different from $(1,\infty)$ and isolate the right class of weights. In particular, we prove an extrapolation theorem ' \`a la Rubio de Francia' for such a class and thus vector-valued estimates.Comment: 43 pages. Series of 4 paper

De Klinberg a la educación superior actual, exigencias a la evaluación

Introduction: in the process of evaluation of learning, the need for a developing and integrating character has been implicit in both the international and national spheres.Objective: to establish methodological recommendations based on an integrative conception of the evaluation of learning from the discipline of General Pedagogical Formation.Development: in order to move towards excellence in the direction of the Aulic Pedagogical Process, it is necessary that creation be an incentive comprise all the factors that intervene in the educational system. Professors and students are direct protagonists of the evaluation process, other external evaluators are farther away from the process, and many times theory takes precedence over practice and vice versa. The idea is to fulfill this principle (theory-practical unit), and that the act of evaluating learning process constitutes an enhancer of the pedagogical processes of excellence, and its quality, which will contribute to the effective educational institutions and systemsConclusions: the bridging of evaluation of the teaching-learning process in the methodological work is a need for the evaluators and for those assessed, who must begin by resizing the functions of teaching to search for an integrative conception that leads to the fulfillment of the methodological recommendations from their dimensions and indicators, as well as making evident the unity of the affective-cognitive-value in the actions of those assessed.Introducción: en el proceso de evaluación de los aprendizajes, ha estado implícita la necesidad del carácter desarrollador e integrador tanto en el ámbito internacional como en el nacional.Objetivo: establecer recomendaciones metodológicas a partir de una concepción integradora de la evaluación de los aprendizajes desde la disciplina Formación Pedagógica General.Desarrollo: para ir hacia la excelencia en la dirección del Proceso Pedagógico Áulico, es necesario que creación sea un incentivo en todos los factores que intervienen en el sistema educacional. Los profesores y estudiantes son protagonistas directos del proceso de evaluación, otros evaluadores externos están más alejados del proceso y muchas veces la teoría prima sobre la práctica y viceversa, de lo que se trata es de cumplimentar este principio (unidad teoría práctica) y que el acto de evaluación del aprendizaje constituya un potenciador de procesos pedagógicos de excelencia, de calidad, lo que tributará a instituciones y sistemas educativos eficaces.Conclusiones: la imbricación de la evaluación de los aprendizajes en el trabajo metodológico, es una necesidad de evaluados y evaluadores, que debe partir de redimensionar las funciones de la enseñanza en pos de una concepción integradora que conduzca al cumplimiento de las recomendaciones metodológicas desde sus dimensiones e indicadores y que manifiesten la unidad de lo afectivo-cognitivo-valorativo en el accionar de los evaluados

Calibrations of Atmospheric Parameters Obtained from the First Year of SDSS-III APOGEE Observations

The SDSS-III Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a three year survey that is collecting 100,000 high-resolution spectra in the near-IR across multiple Galactic populations. To derive stellar parameters and chemical compositions from this massive data set, the APOGEE Stellar Parameters and Chemical Abundances Pipeline (ASPCAP) has been developed. Here, we describe empirical calibrations of stellar parameters presented in the first SDSS-III APOGEE data release (DR10). These calibrations were enabled by observations of 559 stars in 20 globular and open clusters. The cluster observations were supplemented by observations of stars in NASA's Kepler field that have well determined surface gravities from asteroseismic analysis. We discuss the accuracy and precision of the derived stellar parameters, considering especially effective temperature, surface gravity, and metallicity; we also briefly discuss the derived results for the abundances of the alpha-elements, carbon, and nitrogen. Overall, we find that ASPCAP achieves reasonably accurate results for temperature and metallicity, but suffers from systematic errors in surface gravity. We derive calibration relations that bring the raw ASPCAP results into better agreement with independently determined stellar parameters. The internal scatter of ASPCAP parameters within clusters suggests that, metallicities are measured with a precision better than 0.1 dex, effective temperatures better than 150 K, and surface gravities better than 0.2 dex. The understanding provided by the clusters and Kepler giants on the current accuracy and precision will be invaluable for future improvements of the pipeline.Comment: 40 pages, 15 figures, 4 tables, accepted to A

Denervación renal en el tratamiento de la hipertensión arterial. Posicionamiento conjunto de la SEH-LELHA y la ACI-SEC

Hypertension is the most prevalent cardiovascular risk factor. Despite pharmacological treatment, a high percentage of patients do not achieve an adequate blood pressure control. Renal sympathetic denervation is a minimally invasive intervention for the management of hypertension involving the interruption of the renal artery sympathetic nervous system using a catheter-based approach. The early studies showed promising results, but the controversial results coming from the SYMPLICITY HTN-3 trial sent this technique into oblivion. Over the last 3 years, new clinical trials have appeared including new devices used in different populations, which definitively proves the effectiveness of renal sympathetic denervation. This joint position statement from the Spanish Society of Hypertension-Spanish League for Combating High Blood Pressure (SEH-LELHA), and the Interventional Cardiology Association of the Spanish Society of Cardiology (ACI-SEC) reviews the evidence available on the efficacy and safety profile of renal sympathetic denervation for the management of hypertension. Based on the results of clinical trials, recommendations have been established on what patients may be eligible for renal sympathetic denervation and under what circumstances

Sharp weighted estimates for classical operators

We give a new proof of the sharp one weight $L^p$ inequality for any operator $T$ that can be approximated by Haar shift operators such as the Hilbert transform, any Riesz transform, the Beurling-Ahlfors operator. Our proof avoids the Bellman function technique and two weight norm inequalities. We use instead a recent result due to A. Lerner to estimate the oscillation of dyadic operators. Our method is flexible enough to prove the corresponding sharp one-weight norm inequalities for some operators of harmonic analysis: the maximal singular integrals associated to $T$, Dyadic square functions and paraproducts, and the vector-valued maximal operator of C. Fefferman-Stein. Also we can derive a very sharp two-weight bump type condition for $T$.Comment: We improve different parts of the first version, in particular we show the sharpness of our theorem for the vector-valued maximal functio

Posttreatment of olive mill wastewater by immobilized TiO2 photocatalysis

A photocatalytic reactor with UV/TiO2 was used for the post-treatment of olive mill wastewater after anaerobic digestion. A factorial experimental design was adopted to determine the statistical significance of each parameter tested, namely initial COD, pH, treatment time and recirculation flow, and possible interactions, in three response variables: phenols, colour, and COD removals. Removal efficiencies of 90.8 ± 2.7 %, 79.3 ± 1.9 %, and 50.3 ± 6.3 % were obtained for total phenols (TPh), colour, and COD, respectively. TPh and colour were almost completely removed after 24 h of treatment, while the COD removal was partial. Because increasing the treatment time is economically unfeasible a recirculation to the anaerobic reactor should be considered. Regarding the most significant variables, the TPh removal efficiency is dependent of the initial COD concentration; the colour removal efficiency decreased with increasing COD concentration and pH; and, the COD removal efficiency is directly linked with the treatment time. The interaction between the initial COD and treatment time affect negatively the response variables tested because of the inactivation of some active sites of the TiO2 paper.The Portuguese Science Foundation (FCT) and the European Social Fund (ESF, POPH-QREN) gave financial support through the Post-Doctoral grant attributed to Jose Carlos Costa (SFRH/BDP/48 962/2008) and through the project PTDC/ENR/69 755/2006. The authors thank Dr. M.N. Pons and Dr. O. Zahraa the offer of the reactor and Mr Ing. J. Dussaud from Alstrohm (Pont-Eveque, France) for the TiO2 paper