Corrección de deformidad postraumática del radio distal secundaria a puente óseo fisario

Distal radius fractures in the childhood are frequent and they are usually treated in a conservative fashion, although some cases need percutaneous pinning. A physeal bone bridge is an uncommon complication of K-wires insertion and it may provoke a severe deformity while growth potential remains. A 9-year-old boy with this complication is reported. He was successfully treated by physeal distraction, achieving a satisfactory correction of his deformity

InAs/InP single quantum wire formation and emission at 1.5 microns

Isolated InAs/InP self-assembled quantum wires have been grown using in situ accumulated stress measurements to adjust the optimal InAs thickness. Atomic force microscopy imaging shows highly asymmetric nanostructures with average length exceeding more than ten times their width. High resolution optical investigation of as-grown samples reveals strong photoluminescence from individual quantum wires at 1.5 microns. Additional sharp features are related to monolayer fluctuations of the two dimensional InAs layer present during the early stages of the quantum wire self-assembling process.Comment: 4 pages and 3 figures submitted to Applied Physics Letter

Patrones de aprendizaje en estudiantes universitarios del Máster en Educación Secundaria : variables personales y contextuales relacionadas

En este trabajo analizamos los patrones de aprendizaje (Vermunt, 1998; 2005) en una muestra de estudiantes universitarios del Máster en Formación del Profesorado de Educación Secundaria, y la relación que tienen con ciertas variables personales, contextuales y el rendimiento académico. Participan 101 estudiantes de Formación del Profesorado de una universidad española con una edad media de 27.57, de los cuales 71.30% son mujeres. Los resultados indican que no se reproducen, fielmente, los patrones propuestos por Vermunt, aunque si se aprecia una mayor semejanza con los resultados que otros trabajos han hallado empleando el ILS con muestras de estudiantes de Educación Secundaria. Igualmente, hallamos relaciones significativas entre el género femenino y mayores puntuaciones en creencias y orientaciones de aprendizaje y entre la edad con mayores puntuaciones en los indicadores del patrón reproductivo y la orientación a calificaciones y certificados. Además, hallamos que los estudiantes de orientación educativa tienen menor puntuación en el patrón reproductivo que los estudiantes de ciencias naturales. Estos resultados se discuten en el marco de la formación universitaria del profesorado de Educación Secundaria en una universidad española.In this study we analysis patterns of learning (Vermunt, 1998; 2005) in a sample of Master Teaching Education program, and its relationships with personal and contextual variables, and the academic performance. Participants were 101 teacher education students from a Spanish university with an average ages of 27.57, of which 71.30% were women. The results show that patterns of learning do not reproduce according to Vermunt, though these if it shows to be a certain similarity with the obtained ones in other studies with secondary students. Likewise, we found significance relationships between female and higher scores in beliefs and learning orientations, and between age with higher score in a reproductive pattern and certificate orientation. Moreover, we found that education counseling students have lower score in a reproduction pattern than natural sciences students. These results are discussed in the field of teacher education program in a Spanish university

Evaluation of a two-phase extraction system of carbohydrates and proteins from chlorella vulgaris utex 1803

Microalgae are a valuable source of high-value products and biofuels, however the high-energy cost required for the extraction of their metabolites has kept questioning on possible industrial upgrading. The aim of this study was to evaluate the effect of temperature, solvent/biomass, NaOH concentration and thermal pretreatment of the biomass in a 2-cycle carbohydrate and protein extraction system. Results shown that best conditions for carbohydrates extraction are achieved at a solvent concentration of 3.67 M, 55°C and a solvent/biomass ratio of 30mL/g. On the other side, the best conditions for protein were 3 M, 85°C and 45 mL/g. The efficiencies achieved under these conditions were 95% for carbohydrates and 98% for proteins. Using the best extraction conditions for each metabolite a thermal pre-treatment was performed at 25°C, 75°C and 105°C. Results indicate that highest efficiencies were achieved with dry biomass pretreated at 105°C, with values of 95% for carbohydrates and 98% for proteins

Virtual restitution of the parietal decoration in the Sala del Mosaico de los Amores, Cástulo Archaelogical site (Linares, Spain)

The use of photogrammetry in the field of archaeology is increasingly widespread. In the case of restoration, the use of 3D contributes to facilitating the complex process of an intervention and bringing the artwork closer to the general public. This paper describes the application of 3D modelling techniques in the specific case of the Roman wall paintings from the Sala del Mosaico de los Amores, in Castulo Archaeological Site (Linares, province of Jaén). These paintings were found in 2011, collapsed over the mosaic pavement, and they were moved to the University of Granada for their restoration. After the intervention, the photogrammetric surveys of the different fragments and of the room to which they belong were developed, and the virtual restitution was generated, therefore making it possible for the general public to reliably appreciate how the room would look like with the parietal decoration located in-situ.Ministry of Economy and CompetitivenessEuropean Regional Development Fund (MINECO/FEDER, UE) HAR2015-66139-PResearch project "Chromatic treatments in architecture of Islamic tradition. Techniques and Conservation" by the Andalusian Regional Government, Department of Economy, Innovation, Science and Employment P12 HUM 1941German Research Foundation (DFG

Methylene blue for surgical excision of digital myxoid cysts after sonography: Addressing the challenge of identifying the drainage tract

Digital mucous cysts are benign pseudocysts that frequently present as solitary lesions on the proximal nail folds, arising from the joint capsule and typically containing clear fluid. Although several therapeutic options exist for digital mucous cysts, the recurrence rate is high, and surgical excision remains the most effective choice1. Nevertheless, the use of ultrasound could assist in the identification of the drainage tract of the cyst within the join

Phase profile analysis of transparent objects through the use of a two windows interferometer based on a one beam splitter configuration

AbstractIn this research we implemented a two windows interferometer based on polarization phase shifting and grating interferometry techniques in order to retrieve the phase data profile of the object in a single capture. The optical configuration has two optical beams with circular polarization in opposite directions, and it is coupled with a 4-f system. An amplitude grid is used as a filter which is placed at the Fourier plane to obtain replicas of each beam which can properly interfere, depending on the separation between beams. The interferometer presents the capability of changing the beam separation in order to make different orders interfere properly. The interference patterns produced can be separately modulated through the operation of linear polarizer's placed on each interference replica. In order to present the capabilities of the system we will select four interferograms result of contiguous orders interference