La arquitectura en Nuevo León : enseñanza y práctica profesional

Tesis (Maestría en Enseñanza Superior) UANLUANLhttp://www.uanl.mx

A Geometric Representation for the Proca Model

The Proca model is quantized in an open-path dependent representation that generalizes the Loop Representation of gauge theories. The starting point is a gauge invariant Lagrangian that reduces to the Proca Lagrangian when certain gauge is selected.Comment: 10 pages, Late

UM PANORAMA DA FORMAÇÃO CONTINUADA DE PROFESSORES DE BIOLOGIA E CIÊNCIAS ATRAVÉS DA EAD NO ESTADO DO RIO DE JANEIRO

O objetivo do artigo é apresentar o perfil dos professores que buscam por formação continuada a distância na área de Biologia da Fundação CECIERJ e a evolução dos níveis de participação deles durante o desenvolvimento dos cursos entre os anos de 2006 a 2009. Nesse período os ambientes virtuais de aprendizagem sofreram constantes inovações pedagógicas e a implementação de novas ferramentas de interação, o que refletiu positivamente na participação dos cursistas. A análise do perfil dos cursistas foi realizada a partir do mapeamento dos dados cadastrais dos inscritos nos cursos de formação continuada na área de Biologia em 2008 e 2009. Neste período, foram oferecidos oito cursos para 18 turmas, havendo um total de 6.993 pedidos de inscrição. As inscrições eram de licenciados na área Ciências da Vida em 73% dos pedidos. A maior parte dos professores que solicitaram inscrição (48%) declarou não lecionar, com 35% declarando trabalhar em escolas públicas de Ensino Fundamental e Médio. É importante assinalar que os licenciandos já ocupam 10% da demanda, provavelmente preocupados com a inserção no mercado de trabalho através de concursos públicos. Além desses, professores com formação na área de Humanas e os que ministram aulas em escolas particulares também têm buscado a formação continuada através da EAD. Para avaliação dos níveis de participação, foi usado o banco de dados do sistema acadêmico entre os anos de 2006 a 2009, sendo os cursistas separados em diferentes grupos: observadores, participantes, concluintes e aprovados. Houve aumento da procura por cursos de formação continuada em Biologia e Ciências, bem como maior índice de participação efetiva dos cursistas do ano de 2006 para 2009, como a maior evolução do ano de 2008 para 2009. Entre 2008 e 2009, houve aumento significativo dos alunos participantes, concluintes e aprovados, com queda de 14,1% da taxa de evasão. Conclui-se que as novas práticas pedagógicas e ferramentas tecnológicas utilizadas têm sido de grande ajuda para os professores-cursistas na construção de novos conhecimentos e o desenvolvimento de potencialidades de aprendizagem para a promoção do crescimento profissional da docência na área de Biologia e Ciências no estado do Rio de Janeiro

Perfil clínico y terapéutico en insuficiencia cardiaca aguda

Introducción: La insuficiencia cardiaca es un trastorno progresivo con una alta prevalencia, asociada a una morbilidad y mortalidad importantes. Objetivo: Caracterizar el perfil clínico y terapéutico de pacientes ingresados por insuficiencia cardiaca agudamente descompensada. Métodos: Se realizó un estudio descriptivo transversal cuyo universo de estudio estuvo constituido por los pacientes con diagnóstico de insuficiencia cardiaca aguda que ingresaron en el servicio de Cardiología del Hospital Universitario "General Calixto García" en el período comprendido entre enero de 2018 y el 31 de diciembre de 2019. Mediante la estadística descriptiva se realizó el análisis de los datos numéricos, a través del estudio de frecuencias relativas y porcentajes. Resultados: Mayor presentación de la enfermedad en adultos mayores, sexo femenino. Predominó la hipertensión arterial como factor de riesgo, omisión del tratamiento medicamentoso como primera causa de la descompensación. 45,6 % de la muestra se clasificó como insuficiencia cardiaca con la fracción de eyección del ventrículo izquierdo reducida, 30,4 % como insuficiencia cardiaca en rango intermedio y 23,1 % como insuficiencia cardiaca con la fracción de eyección del ventrículo izquierdo preservada o normal. La complicación más frecuente fue el choque cardiogénico (16,3 %) y 88 % de los pacientes emplearon diuréticos. Conclusiones: En el perfil clínico y terapéutico de los pacientes con ingreso hospitalario por insuficiencia cardiaca aguda existen factores como la edad avanzada, la hipertensión arterial y la enfermedad arterial coronaria que precisan mayor seguimiento con el fin de atender a los pacientes de forma adecuada a sus necesidades

Venous thromboembolism in heart transplant recipients: Incidence, recurrence and predisposing factors

[Abstract] Background. A high frequency of venous thromboembolism (VTE) has been observed after lung, kidney, and liver transplantation. However, data about the incidence of this complication among heart transplant (HT) recipients are lacking. Methods. We analyzed the incidence, recurrence, and predisposing factors of VTE in a single-center cohort of 635 patients who underwent HT from April 1991 to April 2013. Deep venous thrombosis (DVT) and pulmonary embolism (PE) were considered as VTE episodes. Results. During a median post-transplant follow-up of 8.4 years, 62 VTE episodes occurred in 54 patients (8.5%). Incidence rates of VTE, DVT, and PE were, respectively, 12.7 (95% confidence interval [CI], 9.7–16.3), 8.4 (95% CI, 6.0–11.4), and 7.0 (95% CI 4.8–9.7) episodes per 1,000 patient-years. Incidence rates of VTE during the first post-transplant year and beyond were, respectively, 45.1 (95% CI, 28.9–67.1) and 8.7 (95% CI 6.2–11.2) episodes per 1,000 patient-years. The incidence rate of VTE recurrence after a first VTE episode was 30.5 (95% CI, 13.2–60.2) episodes per 1,000 patient-years. By means of multivariable Cox regression, chronic renal dysfunction, older age, obesity, and the use of mammalian target of rapamycin inhibitors were identified as independent risk factors for VTE among HT recipients. Conclusions. VTE is a frequent complication after HT, mainly during the first post-operative year. In view of a high recurrence rate, long-term anti-coagulation should be considered in HT recipients who experience a first VTE episode

Mediastinite: complicação pós operatória em cirurgia torácica

A mediastinite é uma das mais graves complicações de cirurgias torácicas, podendo ocorrer até o 30° dia de pós-operatório e ocasionar grande morbimortalidade. Apesar da etiopatogenia ainda pouco compreendida, grande importância é atribuída à contaminação da ferida operatória durante o procedimento cirúrgico. O presente estudo tem como objetivo atenuar os fatores de risco relativos ao paciente, preparar adequadamente a pele, aplicar as técnicas antissépticas preconizadas e esclarecer a importância acerca das medidas profiláticas, além de fornecer prontamente o tratamento correto para os pacientes acometidos. Trata-se de uma revisão bibliográfica de caráter exploratório, tendo como base teórica o Google Acadêmico, Scielo e Medline

Phylogenetic classification of the world's tropical forests

Knowledge about the biogeographic affinities of the world’s tropical forests helps to better understand regional differences in forest structure, diversity, composition, and dynamics. Such understanding will enable anticipation of region-specific responses to global environmental change. Modern phylogenies, in combination with broad coverage of species inventory data, now allow for global biogeographic analyses that take species evolutionary distance into account. Here we present a classification of the world’s tropical forests based on their phylogenetic similarity. We identify five principal floristic regions and their floristic relationships: (i) Indo-Pacific, (ii) Subtropical, (iii) African, (iv) American, and (v) Dry forests. Our results do not support the traditional neo- versus paleotropical forest division but instead separate the combined American and African forests from their Indo-Pacific counterparts. We also find indications for the existence of a global dry forest region, with representatives in America, Africa, Madagascar, and India. Additionally, a northern-hemisphere Subtropical forest region was identified with representatives in Asia and America, providing support for a link between Asian and American northern-hemisphere forests.</p

Many Labs 2: Investigating Variation in Replicability Across Samples and Settings

We conducted preregistered replications of 28 classic and contemporary published findings, with protocols that were peer reviewed in advance, to examine variation in effect magnitudes across samples and settings. Each protocol was administered to approximately half of 125 samples that comprised 15,305 participants from 36 countries and territories. Using the conventional criterion of statistical significance (p < .05), we found that 15 (54%) of the replications provided evidence of a statistically significant effect in the same direction as the original finding. With a strict significance criterion (p < .0001), 14 (50%) of the replications still provided such evidence, a reflection of the extremely highpowered design. Seven (25%) of the replications yielded effect sizes larger than the original ones, and 21 (75%) yielded effect sizes smaller than the original ones. The median comparable Cohen’s ds were 0.60 for the original findings and 0.15 for the replications. The effect sizes were small (< 0.20) in 16 of the replications (57%), and 9 effects (32%) were in the direction opposite the direction of the original effect. Across settings, the Q statistic indicated significant heterogeneity in 11 (39%) of the replication effects, and most of those were among the findings with the largest overall effect sizes; only 1 effect that was near zero in the aggregate showed significant heterogeneity according to this measure. Only 1 effect had a tau value greater than .20, an indication of moderate heterogeneity. Eight others had tau values near or slightly above .10, an indication of slight heterogeneity. Moderation tests indicated that very little heterogeneity was attributable to the order in which the tasks were performed or whether the tasks were administered in lab versus online. Exploratory comparisons revealed little heterogeneity between Western, educated, industrialized, rich, and democratic (WEIRD) cultures and less WEIRD cultures (i.e., cultures with relatively high and low WEIRDness scores, respectively). Cumulatively, variability in the observed effect sizes was attributable more to the effect being studied than to the sample or setting in which it was studied.UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Sociales::Instituto de Investigaciones Psicológicas (IIP

COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study

Background: The ISARIC prospective multinational observational study is the largest cohort of hospitalized patients with COVID-19. We present relationships of age, sex, and nationality to presenting symptoms. Methods: International, prospective observational study of 60 109 hospitalized symptomatic patients with laboratory-confirmed COVID-19 recruited from 43 countries between 30 January and 3 August 2020. Logistic regression was performed to evaluate relationships of age and sex to published COVID-19 case definitions and the most commonly reported symptoms. Results: ‘Typical’ symptoms of fever (69%), cough (68%) and shortness of breath (66%) were the most commonly reported. 92% of patients experienced at least one of these. Prevalence of typical symptoms was greatest in 30- to 60-year-olds (respectively 80, 79, 69%; at least one 95%). They were reported less frequently in children (≤ 18 years: 69, 48, 23; 85%), older adults (≥ 70 years: 61, 62, 65; 90%), and women (66, 66, 64; 90%; vs. men 71, 70, 67; 93%, each P &lt; 0.001). The most common atypical presentations under 60 years of age were nausea and vomiting and abdominal pain, and over 60 years was confusion. Regression models showed significant differences in symptoms with sex, age and country. Interpretation: This international collaboration has allowed us to report reliable symptom data from the largest cohort of patients admitted to hospital with COVID-19. Adults over 60 and children admitted to hospital with COVID-19 are less likely to present with typical symptoms. Nausea and vomiting are common atypical presentations under 30 years. Confusion is a frequent atypical presentation of COVID-19 in adults over 60 years. Women are less likely to experience typical symptoms than men