The p-k-Wright Function

In this article we will presented a new denition of the function pW k;;(z). Some elementary properties of the new pW k;;(z) are presented and his Laplace transform is obtained. Also it has been shown that the fractional Riemann-Liouville integral transform such functions with powers multipliers into functions of the same form with a very interesting relation between indices

Estructura y composición del ensamblaje de aves asociadas a fragmentos de bosque altoandino en la reserva natural "La reserva" (Cundinamarca-Colombia)

Se describió la estructura y composición del ensamblaje de aves asociadas a fragmentos de bosques altoandino en la reserva natural "La Reserva" (Cundinamarca-Colombia), situada entre los 3.100 y 3.500 metros de altitud y alrededor de los 4° 34þ de latitud norte y 73° 49þde longitud oeste. La fase de campo se realizó durante 31 días en cuatro fragmentos de bosque, las metodologías utilizadas fueron detección visual en rutas con puntos de conteo y captura de individuos con redes de niebla. A los individuos capturados se les tomaron medidas morfométricas estándar, estado del plumaje, muda, entre otras; para las aves observadas se registró localidad, coordenadas, altitud, determinación taxonómica, hábitat, estrato arbóreo, estructura social, entre otras. En total se registraron 38 especies, 31 géneros y 17 familias asociadas a los fragmentos de bosque altoandino. Las familias dominantes tanto para detección visual como para la captura de aves con redes de niebla fueron Thraupidae (9 especies) y Trochilidae (8 especies). La especie dominante para la captura de aves mediante redes de niebla en los fragmentos de bosque fue el colibrí Eriocnemis cupreoventris (19.35%). Para la detección visual en rutas con puntos de conteo la especie más abundante fue el perico de páramo Pyrrhura calliptera (15.76%). Adicionalmente se establecieron los gremios tróficos por medio de observaciones del tipo de comportamiento de forrajeo y según los registro sobre dieta y hábitos alimenticios encontrada en la literatura. Estos resultados demuestran gran importancia de la reserva natural para la conservación de la diversidad de aves, en especial de las especies endémicas y de aquellas que se encuentran amenazadas. Por último se resalta el papel funcional de la ?La Reserva? como área amortiguadora del Parque Nacional Natural Chingaza.This investigation describes the structure and composition of the bird assemblaje associated to fragments of high-andine forest in the Natural Reserve “The Reserve” (Department of Cundinamarca, Colombia) located between 3.100 and 3.300 meters of altitude, and approximately 4º 34 ́ North Latitude and 73º 49 ́ West Latitude. The field phase took place in 31 days and in four fragments of high-andine forest. The implemented methodology was visual detection in routes with point counts, and capture of individuals with mist nets. Standard morphometric measurements were applied to the captured individuals. The status of plumage and molt was also taken into account. For every observed bird, thenext data was registered: locality, coordinates, altitude, taxonomic determination, habitat, arboreal stratification, social structure. 38 species, 31 genus and 17 families associated to fragments of high-andine forest were registered altogether. The dominant families in the visual detection, as well in the mist net capture were Traupidae (9 species) and Trochilidae (8 species). The dominant species in the mist net capture was the hummingbird Eriocnemis cupreoventris(19.35 %). In the methodology of visual detection in routes with point counts, the most abundant species was the “perico de paramo” Pyrrhura calliptera(15.76 %). In addition, trophic guilds were established through observation of the type of foraging behavior, according to the registers aboutdiet and eating habits found in related literature. These results show the great importance of the Natural Reserve in the conservation of bird diversity, particularly the conservation of endemic species and those which are endangered. Finally, the functional role of “La Reserva” is highlighted as an important area of the Chingaza National Natural Park.Biólogo (a)Pregrad

Remoção de matéria orgânica natural e precursores de trialometanos por filtração em margem na Lagoa do Peri, Santa Catarina , Brasil

Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Ambiental, Florianópolis, 2012A filtração em margem, FM, consiste em induzir o escoamento da água das fontes superficiais, localizadas em formações geológicas de tipo aluvião ou não consolidadas, até poços e galerias adjacentes. A fim de estudar e comparar a FM com a filtração direta (FD), foi realizado um estudo de FM no nível piloto, no manancial Lagoa do Peri em Santa Catarina. Para isso, foram construídos três sistemas diferentes: piezômetros, colunas preenchidas com sedimento do fundo da Lagoa e bio filtro de pedra pomes, test filter (TF). Nesses sistemas, foram estudadas as variações da qualidade da água, características redox, remoção de matéria orgânica natural (MON) e remoção dos precursores de trialometanos (TAM). Paralelamente, foi caracterizada a água, obtida por FD, no local. A hidrogeologia local é do tipo depósito litorâneo com textura arenosa, condutividade hidráulica média de 10-4 m/s e profundidade do aquífero (18 m), apropriados para a FM. A cor e turbidez foram removidos atingindo valores abaixo das exigidas pela norma, nos primeiros centímetros de infiltração (1 dia de percurso). Da mesma forma, a maioria da MON foi removida ao início da infiltração, acompanhada pela aparição de condições redutoras, que comprometeram a qualidade da água, pela presença de ferro, manganês e sulfeto de hidrogênio. A remoção de MON e precursores de TAM foi próxima de 45-35% de carbono orgânico dissolvido e total (COD e COT) e 70% de precursores, após 100 dias de percurso. Porém, a dessorção/dissolução de carbono orgânico sólido (COS), previamente depositado no subsolo, reduziu a remoção, especialmente durante os meses mais quentes. Houve uma redução preferencial dos precursores de TAMs, em relação à MON total. A remoção da MON e de precursores, sem o fenômeno de dessorção/dissolução, mostraram uma cinética de primeira ordem. O COD e os precursores de TAM, relacionados com uma fração de MON facilmente biodegradável, foi removido em menos de 2 dias de percurso; outra fração menor, moderadamente degradável, precisou de 100 dias. A MON e precursores residuais foram não degradáveis, em condições práticas de FM. Dessa forma, a maior capacidade da FM foi atingida após 100 dias de percurso. As condições redox da água tratada por FM se apresentaram como a principal desvantagem da mesma, frente à FD. No entanto, a infraestrutura do sistema de FD poderia ser utilizada como pós-tratamento da água provinda por FM, em condições anaeróbias.Abstract : Bank filtration, BF, consists into induced surface water, located on alluvial and non-consolidated geological formation, to flow to pumping wells and galleries installed on their banks. BF was studied and compare with direct filtration (DF) in pilot scale in Lagoa do Peri Lake, Santa Catarina. Three diferent systems were constructed: a piezometer on the banks, columns filled with sand from the lake bottom and a pumice stone bio-filter, test filter (TF). The systems permit to study water quality parameters, redox conditions and the remval of natural organic matter (NOM) and thrihalomethanes (THM) precursors. At the same time BF treated water from the same lake was monitored. Sandy littoral deposits form the local hydrology of the study site; with mean hydraulic conductivity of 10-4 m/s and 18 m aquifer depth, typical characteristics for BF application. Turbidity and apparent color were removed in the first centimeters of infiltration (1 day of nitration). In a similar way most of the NOM was also removed at the beginning of the infiltration. A shift to reductive conditions was also observed with the presence of iron, manganese and hydrogen sulphide in the filtrate water. NOM (as total and dissolved organic carbon) and THM precursor removal was about 45-35% and 70% respectively, after 100 days of infiltration. However, desorption/dissolution of organic carbon from the subsoil was observed principally during the warmer months. There was a preferential THM precursor removal in relation to the total NOM. The NOM and precursors removal showed a first order kinetics during the nom desorption/dissolution period. The dissolved organic carbon and the precursors corresponding with an easily degradable fraction were removed during the first 2 days of infiltration. A second, moderately degradable fraction was removed in 100 days. The residual NOM and precursors were considered nom degradable in practical conditions. Therefore, the highest BF capacity was at 100 days of travel time. Finally, comparing BF with DF, the reduced redox conditions seem to be the principal disadvantage of the former. However, the existing DF infrastructure could be used to treat the BF water

Cluster Analysis - Practice 3

Este documento analiza aspectos formales y aplicaciones de la técnica multivariada, relacionados con la agrupación y el aprendizaje no supervisado, análisis clúster.This document discusses formal aspects and applications of the multivariate technique, related to grouping and unsupervised learning, cluster analysis

Intermittent chaos for ergodic light trapping in a photonic fiber plate

Extracting the light trapped in a waveguide, or the opposite effect of trapping light in a thin region and guiding it perpendicular to its incident propagation direction, is essential for optimal energetic performance in illumination, display or light harvesting devices. Here we demonstrate that the paradoxical goal of letting as much light in or out while maintaining the wave effectively trapped can be achieved with a periodic array of interpenetrated fibers forming a photonic fiber plate. Photons entering perpendicular to that plate may be trapped in an intermittent chaotic trajectory, leading to an optically ergodic system. We fabricated such a photonic fiber plate and showed that for a solar cell incorporated on one of the plate surfaces, light absorption is greatly enhanced. Confirming this, we found the unexpected result that a more chaotic photon trajectory reduces the production of photon scattering entropy.Peer ReviewedPostprint (published version

Control estadístico para el monitoreo del proceso de corte de pastillas de jabón

This study aims to apply the methodology of statistical process control charts in the monitoring of the net weight of soap bars of a production line, with the objective of evaluating the evolution of this variable as a characteristic of product quality; the results of traditional charts are compared to EWMA memory charts. In manufacturing processes where the misalignments are minimal, Shewhart charts may be less sensitive to these mismatches, which may take a long time to be detected. In this study are applied EWMA control charts that are more appropriate than traditional ones to detect small mismatches more quickly. Having the CEP charts for the monitoring and subsequent analysis of the process variables will enable timely detection of changes in product quality, evaluation of quality aspects of the manufacturing process and continuous improvement in the processes.Este estudio tiene como propósito aplicar la metodología de las cartas de control estadístico de procesos en el monitoreo del peso neto de pastillas de jabones de una línea de producción, con el objetivo de evaluar la evolución de esta variable como característica de calidad del producto; se comparan los resultados de las cartas tradicionales respecto a cartas con memoria EWMA. En los procesos fabriles en donde los desajustes que se presentan son mínimos, los gráficos Shewhart pueden ser poco sensibles a estos desajustes que pueden tardar mucho tiempo en ser detectados. En este estudio se aplican cartas de control EWMA que son más apropiadas que las tradicionales para detectar pequeños desajustes con más rapidez. Disponer de las cartas CEP para el monitoreo y posterior análisis de las variables de proceso, permitirá detectar oportunamente los cambios en la calidad del producto, evaluar aspectos de la calidad del proceso de manufactura y ejercer mejoras continuas en los mismos.

Telemedicine in Elderly Hypertensive and Patients with Chronic Diseases during the COVID-19 Pandemic: A Systematic Review and Meta-Analysis

Background: One aspect of the distancing measures imposed in response to the COVID-19 pandemic is that telemedicine consultations have increased exponentially. Among these consultations, the assessment and follow-up of patients with chronic diseases in a non-presential setting has been strengthened considerably. Nevertheless, some controversy remains about the most suitable means of patient follow-up. Objective: To analyze the impact of the telemedicine measures implemented during the COVID-19 period on chronic patients. Material and Methods: A systematic review was carried out using the following databases: PubMed, Pro-Quest, and Scopus. The systematic review followed the guidelines outlined in the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The search equation utilized descriptors sourced from the Medical Subject Headings (MeSH) thesaurus. The search equation was: “hypertension AND older AND primary care AND (COVID-19 OR coronavirus)” and its Spanish equivalent. Results: The following data were obtained: 14 articles provided data on 6,109,628 patients and another 4 articles focused on a study population of 9684 physicians. Telemedicine was less likely to be used by elderly patients (OR 0.85; 95% C.I. 0.83–0.88; p = 0.05), those of Asian race (OR 0.69; 95% C.I. 0.66–0.73; p = 0.05), and those whose native language was not English (OR 0.89; 95% C.I. 0.78–0.9; p = 0.05). In primary care, lower use of telemedicine was associated with residents of rural areas (OR 0.81; p = 0.05), patients of African American race (OR 0.65, p = 0.05), and others (OR 0.64; p = 0.05). A high proportion (40%) of physicians had no prior training in telemedicine techniques. The highest quality in terms of telephone consultation was significantly associated with physicians who did not increase their prescription of antibiotherapy during the pandemic (OR = 0.30, p = 0.05) or prescribe more tests (OR 0.06 p = 0.05), i.e., who maintained their former clinical criteria despite COVID-19. Conclusions: Telemedicine is of proven value and has been especially useful in the COVID-19 pandemic. A mixed remote–presential model is most efficient. Appropriate training in this area for physicians and patients, together with correct provision, is essential to prevent errors in implementation and us

Potencial de aplicação da filtração em margem em Santa Catarina, Brasil

Artículo científicoA filtração em margem (FM) consiste na obtenção de água de um aquífero e de um manancial por meio de poços ou galerias nas margens de mananciais superficiais com conexão hidráulica entre ambos. Para determinar as áreas com potencial de aplicação da tecnologia, foi realizada uma pesquisa bibliográfica onde foram identificadas as premissas para sua aplicação: disponibilidade de fontes de água superficial e subterrânea em conexão hidráulica, hidrogeologia do aquífero, hidrologia do corpo de água, morfologia do rio, composição do fundo, e qualidade e temperatura da água superficial e subterrânea. Norteado nessas características e utilizando o Atlas Hidrogeológico do Brasil em ambiente SIG foi possível determinar, de forma ilustrativa, os locais com potencial para aplicação da FM no Estado de Santa Catarina. As principais regiões com potencial consistem em formações de tipo aluvial e depósitos litorâneos na zona litorânea do estado. As informações foram compiladas em um mapa temático e abrangeram 1,557 e 3,113km2 respectivamente. No estado de Santa Catariana, ~4,88% da área total apresenta potencial para obter água utilizando a FM. Salienta-se que o sucesso da FM depende do local e as premissas de implantação devem ser verificadas localmente. Foi exposto o caso da Lagoa do Peri, onde a FM foi aplicada com sucesso em escala piloto; a água apresentou redução significativa de turbidez, de cor aparente e principalmente de fitoplâncton incluindo cianobactérias. Porém a água apresentou condições anóxicas, e seria preciso o pós tratamento por aeração e filtração para remoção de ferro e manganês, indesejáveis para água de abastecimento