Critical phenomena of the Majority voter model in a three dimensional cubic lattice

In this work we investigate the critical behavior of the three dimensional simple-cubic Majority voter model. Using numerical simulations and a combination of two different cumulants we evaluated the critical point with a higher accuracy than the previous numerical result found by Yang et al. [J.- S. Yang, I.-M. Kim and W. Kwak, Phys. Rev. E 77, 051122 (2008)]. Using standard Finite Size Scaling theory and scaling corrections we find that the critical exponents {\nu}, {\gamma} and {\beta} are the same as those of the three dimensional Ising model.Comment: 5 pages, 5 figures. Accepted in PR

Mathematical modeling for facilitated transport of Ge(IV) through supported liquid membrane containing Alamine 336

A mathematical model was developed for the germanium facilitated transport from a medium containing tartaric acid using Alamine 336 as a carrier. Modeling was carried out based on the extraction constant (Kext) obtained from the liquid-liquid extraction (LLX) modeling. The LLX data was achieved from experiments with conditions being Alamine 336 concentrations of 0.1-10 %v/v from a solution containing about 1.378 mmol/L Ge (100 mg/L) and tartaric acid as an anionic complexant. The LLX model was attained using the equilibrium-based procedure and fitted to extraction experimental data for various carrier concentrations. This model presented an accurate extraction constant (Kext=0.02) used in the facilitated transport modeling. The flat sheet supported liquid membrane (FSSLM) experiments were conducted in the condition of 1.378 mmol/L Ge (100 mg/L), tartaric acid concertation of 2.760 mmol/L, 1 M HCl as a stripping phase and various Alamine 336 concentrations in the range of 0 to 35 %v/v. The FSSLM model was developed according to the Fick’s law, the diffusional transport, and equilibrium equations. According to the model, mass transfer and diffusion coefficients for various concentrations of the carrier were found. In addition, the calculated and experimental values had a good correlation with together showing the validity of the model. This model can be used in the further process simulation such as hollow fiber SLMs.Peer ReviewedPostprint (author's final draft

Role of the Wnt Pathway in Thyroid Cancer

Aberrant activation of Wnt signaling is involved in the development of several epithelial tumors. Wnt signaling includes two major types of pathways: (i) the canonical or Wnt/β-catenin pathway; and (ii) the non-canonical pathways, which do not involve β-catenin stabilization. Among these pathways, the Wnt/β-catenin pathway has received most attention during the past years for its critical role in cancer. A number of publications emphasize the role of the Wnt/β-catenin pathway in thyroid cancer. This pathway plays a crucial role in development and epithelial renewal, and components such as β-catenin and Axin are often mutated in thyroid cancer. Although it is accepted that altered Wnt signaling is a late event in thyroid cell transformation that affects anaplastic thyroid tumors, recent data suggest that it is also altered in papillary thyroid carcinoma (PTC) with RET/PTC mutations. Therefore, the purpose of this review is to summarize the main relevant data of Wnt signaling in thyroid cancer, with special emphasis on the Wnt/β-catenin pathway

The transition from university to publication: register and interactional metadiscourse features in immunology research written in Catalan and English

La habilidad para usar de forma adecuada el registro lingüístico y las convenciones retóricas del artículo de investigación es importante para lograr el éxito académico y el desarrollo profesional en la carrera de los investigadores. Numerosos estudios se han centrado en artículos de investigación a través de diferentes disciplinas e interculturalmente. Sin embargo, pocas investigaciones se han ocupado del análisis de la escritura del trabajo de investigación de estudiantes, desde una perspectiva de desarrollo y en un idioma diferente al inglés. Para llenar este vacío, se presenta un estudio longitudinal que tiene como objetivo caracterizar la transición del registro académico y la función interaccional desde la universidad a la publicación científica. El foco de la investigación es doble: (1) se examina el registro académico por medio de la diversidad léxica, la complejidad sintáctica y la densidad léxica, y (2) se examina y compara la distribución de los marcadores de postura (stance) y afiliación (engagement) a través de los niveles universitario y publicaciones. Los datos (N = 16) proceden de Trabajos Finales de Máster escritos en catalán (lengua románica) y artículos publicados en Inglés, en la disciplina de la inmunología, escritos por los mismos ocho sujetos. Las convenciones de escritura específicas para cada disciplina son un aspecto integral de la determinación de la competencia de escritura. Los resultados generales sugieren que los estudiantes aún no han adquirido el dominio de escritura, ni en el registro académico ni en las interacciones escritor-lector

Health education project: Handling urinary incontinence in women in menopause.

Trabajo fin de grado en EnfermeríaEste trabajo persigue el abordaje de la Incontinencia Urinaria (IU) en mujeres en etapa menopaúsica. Dicha afección se encuentra en aumento en esta población, que por parte de los profesionales sanitarios, no adquiere el valor que le concierne. La normalización del problema por los medios de comunicación y su estigmatización en la sociedad, da lugar a que las personas afectadas no se empeñen en tratar los síntomas que presentan. Aunque no supone un riesgo vital, puede ocasionar un alto impacto psicológico, social, físico, higiénico, mental y económico, que puede conllevar a una limitación de la autonomía y reducción de la autoestima. El soporte de este proyecto, parte de una búsqueda bibliográfica, respecto al descenso de la calidad de vida (CdV), prevalencia y etiología, protocolos, guías prácticas o Best-practice. Tras análisis de la información, se observa la necesidad de crear un proyecto de Educación para la Salud (EpS) con el fin de conseguir pacientes autosuficientes, mejorando sus conocimientos, promoviendo comportamientos saludables, y ofreciendo estrategias facilitadoras del proceso tanto física como emocionalmente. Se selecciona una población de mujeres, con edades comprendidas entre 50 y 60 años, padeciendo IU. El proyecto incluye 5 sesiones educativas mediante un método de enseñanza que pretende encauzar a la persona en un proceso de cambio de actitud y de conducta; será evaluado de manera continua y a los 6 meses, comprobándose los resultados obtenidos con la estrategia elegida.This work pursues the approach of urinary incontinence in women in the menopausal stage. The condition is increasing in this population, which by health professionals, not acquires the value that concern it. Normalization of the problem by the media and their stigmatization in society, gives rise to the affected people to not endeavor to treat symptoms that present. Although it is not life-threatening, it can cause a high impact psychological, social, physical, mental, hygienic and economic, which may lead to a limitation of autonomy and self-esteem reduction. The support of this project, starts with a literature search, respect to the decline in the quality of life, prevalence and etiology, protocols, practical guides, or Best-practice.After analysis of the information, there is the need to create a project of education for health in order to achieve self-reliant patients, improving their knowledge, promoting healthy behaviors, and offering strategies facilitators of the process both physically and emotionally. A population of women, aged between 50 and 60 years old, suffering from UI is selected. The project includes 5 educational sessions by a teaching method that aims to guide the person in a process of attitude and behavior change; it was evaluated continuously and at 6 months, verifying the results obtained with the chosen strategy

La Convención de la ONU y la Estrategia Europea: ¿Convergencia de objetivos?

La Convención Internacional de Naciones Unidas sobre los Derechos de las Personas con Discapacidad es un instrumento de derecho internacional para la promoción y defensa de los derechos humanos que establece un nuevo paradigma para el desarrollo de las políticas de atención a la discapacidad

Neodymium recovery by chitosan/iron(III) hydroxide [ChiFer(III)] sorbent material: Batch and column systems

A low cost composite material was synthesized for neodymium recovery from dilute aqueous solutions. The in-situ production of the composite containing chitosan and iron(III) hydroxide (ChiFer(III)) was improved and the results were compared with raw chitosan particles. The sorbent was characterized using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy-energy dispersive X-ray analyses (SEM-EDX). The equilibrium studies were performed using firstly a batch system, and secondly a continuous system. The sorption isotherms were fitted with the Langmuir, Freundlich, and Sips models; experimental data was better described with the Langmuir equation and the maximum sorption capacity was 13.8 mg g-1 at pH 4. The introduction of iron into the biopolymer matrix increases by four times the sorption uptake of the chitosan; the individual sorption capacity of iron (into the composite) was calculated as 30.9 mg Nd/g Fe. The experimental results of the columns were fitted adequately using the Thomas model. As an approach to Nd-Fe-B permanent magnets effluents, a synthetic dilute effluent was simulated at pH 4, in order to evaluate the selectivity of the sorbent material; the overshooting of boron in the column system confirmed the higher selectivity toward neodymium ions. The elution step was carried out using MilliQ-water with the pH set to 3.5 (dilute HCl solution).Peer ReviewedPostprint (published version

Sistemas de formación ocupacional a distancia

En el artículo se aportan algunas ideas sobre la aplicación de las nuevas tecnologías de la información en la formación ocupacional a distancia a partir de los tres niveles generales de actuación de un sistema de formación ocupacional a distancia: nivel de producción, nivel de distribución y nivel de ejecución