Simulación computacional de la función mecánica de andamiajes poliméricos en lesiones tendinosas.

El objetivo principal del TFG consiste en abordar la simulación computacional de la interacción mecánica de andamiajes poliméricos obtenidos por electro-hilado en la recuperación del daño en tejidos tendinosos. Para el desarrollo del trabajo se utilizará la aplicación de elementos finitos COMSOL Multiphysics para implementar la formulación que define el problema a abordar y la aplicación Matlab para gestionar los datos experimentales que permitan validar los modelos. Tras la puesta a punto del modelo de comportamiento de los andamiajes, éste se validará utilizando ensayos uniaxiales desarrollados previamente. Se analizará la respuesta mecánica global de tendones sanos y tendones dañados que incorporen los andamiajes como elemento de fijación.<br /

Terapia familiar sistémica en contextos de pobreza

Sin duda alguna, un par de páginas se han de quedar cortas a la hora de desglosar un poco sobre aquellos enfoques direccionados hacia el ser humano, desde lo individual, hasta su interacción en grupo y sociedad. Aun así, el presente artículo permite dar unamirada estructural y básica de lo que conlleva a la mención del concepto de Terapia Familiar Sistémica, en éste caso desarrollada en contextos de pobreza, básicamente en América Latina, y más específicamente en Colombia. A través de una contextualización estructurada de términos, ubicados en la raíz del tema principal, se pretende hacer un recorrido que vaya desde lo más sencillo, hasta lo más elaborado, para finalmente impregnar al lector, de una forma más clara y globalizada, de la ubicación y el universo que se constituye alrededor de la Terapia Familiar Sistémica, en los contextos de pobreza; su constitución, fundamento e importancia en nuestra sociedad

Role of age and comorbidities in mortality of patients with infective endocarditis

[Purpose]: The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality. [Methods]: Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015.Patients were stratified into three age groups:<65 years,65 to 80 years,and ≥ 80 years.The area under the receiver-operating characteristic (AUROC) curve was calculated to quantify the diagnostic accuracy of the CCI to predict mortality risk. [Results]: A total of 3120 patients with IE (1327 < 65 years;1291 65-80 years;502 ≥ 80 years) were enrolled.Fever and heart failure were the most common presentations of IE, with no differences among age groups.Patients ≥80 years who underwent surgery were significantly lower compared with other age groups (14.3%,65 years; 20.5%,65-79 years; 31.3%,≥80 years). In-hospital mortality was lower in the <65-year group (20.3%,<65 years;30.1%,65-79 years;34.7%,≥80 years;p < 0.001) as well as 1-year mortality (3.2%, <65 years; 5.5%, 65-80 years;7.6%,≥80 years; p = 0.003).Independent predictors of mortality were age ≥ 80 years (hazard ratio [HR]:2.78;95% confidence interval [CI]:2.32–3.34), CCI ≥ 3 (HR:1.62; 95% CI:1.39–1.88),and non-performed surgery (HR:1.64;95% CI:11.16–1.58).When the three age groups were compared,the AUROC curve for CCI was significantly larger for patients aged <65 years(p < 0.001) for both in-hospital and 1-year mortality. [Conclusion]: There were no differences in the clinical presentation of IE between the groups. Age ≥ 80 years, high comorbidity (measured by CCI),and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in the <65-year group

Tree growth periodicity in the ever-wet tropical forest of the Americas

The occurrence of annual growth rings in tropical trees—the result of the seasonal activity of vascular cambium—has been explained by seasonal water deficit or flooding periods. However, little is known about the drivers of annual tree-ring formation under tropical hyper-humid conditions without clear seasonal dry periods or flooding (ever-wet conditions). Shelford’s law states that the deficit or the excess of environmental resources limits plant growth. Accordingly, we hypothesize that excess soil moisture, a slight seasonal reduction of precipitation and a reduction in light availability determine rhythmic growth in ever-wet tropical forests.We first assessed the occurrence of rhythmic growth in 14 tree species from the Biogeographic Chocó Region (annual rainfall 7200 mm) using three methods: Radiocarbon (14C) dating (all studied species), tree-ring synchronization (4 species that have replicates) and automatic dendrometers (two species). Then, we assessed the effect of environmental drivers (rainfall, short-wave radiation, temperature and soil moisture) on tree growth based on tree ring and dendrometer observations.We present evidence of annual tree-ring formation in all 14 studied tree species. Depending on the tree species, we observed positive and negative correlations between growth, water availability and light availability. These relationships suggest that both excess or deficit of environmental resources may explain the seasonal pattern of tree growth. Although we cannot differentiate between excess soil water and low light availability by high cloudiness, we suggest that cloudiness frequency could affect tree growth in these forests.Synthesis. We reveal the annual formation of growth rings in the unexplored wetter-end tropical forests, where seasonal growth depends on either high soil moisture and hypoxia or light limitations by cloudiness and photosynthesis constraints.We reveal the annual formation of growth rings in the unexplored wetter-end tropical forests, where seasonal growth depends on either high soil moisture and hypoxia or light limitations by cloudiness and photosynthesis constraints.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/176291/1/jec14069_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/176291/2/jec14069.pd

Characterisation and diagnosis of heritage concrete: case studies at the Eduardo Torroja Institute, Madrid, Spain

That the preservation of twentieth concrete heritage is an area scantly explored can be attributed to a lack of appreciation for such a young material. In most cases conservation is broached from a technical perspective with little regard for heritage value. Ongoing assessment of the condition of structures is the primary strategy to minimise such misguided action. This study involved characterising the condition of the concrete in a number of singular elements forming part of the Eduardo Torroja Institute for Construction Science headquarters at Madrid, Spain, a modernist compound listed by the city of Madrid as a protected asset. The in situ findings using non-destructive and laboratory techniques revealed the core concrete to be in good condition. The surface material, however, exhibits signs of durability issues calling for conservation treatments and techniques compatible with the preservation of the integrity and authenticity of this young heritage material.This study was funded by the European Union’s Horizon H2020 Research and Innovation Pro-gramme under Grant Agreement No. 760858 (In-novaConcrete) and by the Regional Government of Madrid (TopHeritage-CM; S2018/NMT_4372). The professional support provided by the CSIC’s ‘Open Heritage: Research and Society (PTI-PAIS)’ Interdisciplinary Thematic Platform is gratefully ac-knowledged

Aprendizaje basado en problemas

El trabajo obtuvo un premio de la Modalidad B de los Premios Tomás García Verdejo a las buenas prácticas educativas en la Comunidad Autónoma de Extremadura para el curso 2011-2012Se describe una experiencia llevada a cabo en el IES Augustóbriga (Navalmoral de la Mata, Cáceres) en los Ciclos Formativos de Grado Superior de la Familia de Informática: Desarrollo de Aplicaciones Multiplataforma y Desarrollo de Aplicaciones Web, y en concreto en los módulos relacionados con programación de ordenadores en los que se aplicó la metodología del aprendizaje basado en problemas. La experiencia se cristalizó en dos actuaciones, por un lado se puso en marcha el aprendizaje basado en problemas directamente en el aula, y por otro, se realizó un concurso de programación en el que participó el resto de la comunidad educativa y otros institutosExtremaduraES

Uso de mallas moleculares en la descontaminación de desechos líquidos

IP 1115-13-236-94v.1. Informe Final / Carlos Saldarriaga Molina ... [et al.] --v.2. Remocion de cromo de la industria de curtiembres utilizando mallas moleculares / Edison Gil Pavas --v.3. Remocion de cromo (III) de aguas residuales de curtiembres / Monica Maria Moreno Casafus, ClaudiaPatriciaRamirez Ochoa y Claudia Yanet Tamayo Martinez -- v.4. Eliminacion de Cr3+ con zeolitas naturales colombianas /Auddy Alvarez Sanchez, Jhon Kirk Walter Villareal y Jorge Hernan Chica Betancur -- v.5. Remociondel cromo3+ de aguas residuales de curtiembres utilizando modernita / Beatriz Elena Caro y CesarAugusto Quintero -- v.6. Tratamiento de aguas residuales de curtiembres con bentonita activada / Ligia IbarraPulgarin yNorman A. Lopez Ramirez -- v.7. Recuperacion de cromo de aguas residuales de curtiembres por medio de mallas moleculares tipo alpo4-5 sustituida con cobalto / Luis Fernando Duque Osorio, MauricioAlexander Carmona Gomez y Carlos Mario Aristizabal Cardona -- v.8. Fabricacion de pastillas de mallasmolecularesutilizando como aglutinantes caolin y lignosulfonato de sodio / Farith Adilson Diaz Arriaga, BorisRonald Medina y Arley David Zapata Zapata -- v.9. Remocion de cromo (III) de aguas residuales de curtiembrespor intercambio ionico / Ana Maria Calderin Lopez, Juan Fernando Hernandez Ospina y Juan Miguel MarinSepulveda -- v.10. Sintesis de la ettringita y su aplicacion en la remocion de cromo de aguas de curtiembres/ Miguel Octavio Jaramillo G. y Bernardo A. Galeano