El análisis narrativo en la educación física y el deporte

Este artículo complementa otro anterior publicado en esta mis ma revista ( v. 17, n.1, 2011) en el que se reflexionaba sobre las cuestiones de qué es la investigación narrativa y qué puede ofrecer al estudio de la educación física y el deporte. Este trabajo se ocupa de la vertiente metodológica de la investigación narrativa, concretamente del análisis narrativo. En primer lugar se expone qué se entiende por análisis narrativo. En segundo lugar, se distingue entre dos grandes estrategias utilizadas para analizar narrativas: las que enfatizan la historia y las que enfatizan el análisis. La tipología se completa con una revisión de varios estudios que centran su foco de análisis en el Qué y/o el Cómo de los relatos. Finalizamos con una serie de consideraciones para animar y, a la vez, invitar a los investigadores a ser prudentesa la hora de analizar narrativa

Quaternary adaptive optics

We present a new Point Diffraction Interferometer (PDI). Binary adaptive optics (BAO) and Quaternary Adaptive Optics (QAO) can be performed with the help of this PDI as a wavefront sensor. The PDI interferogram, once binarized, is used in two consecutive steps to produce a quaternary mask with phase values 0, π/2, π and 3π/2. The addition of the quaternary mask compensates for the aberrated wavefront and allows us to reach a Strehl ratio of about 0.81. We have verified through computer simulations that the use of QAO depends on the number of actuators of the compensating device to achieve effective compensation. The technique was successfully validated through an experiment.Ministerio de Economía y Competitividad (MINECO) (AYA2016-78773-C2-1-P)

Influence of potential pulses amplitude sequence in a voltammetric electronic tongue (VET) applied to assess antioxidant capacity in aliso

[EN] Four signals configurations were studied, two of them built by small increases of potential and two with bigger increments. The highest current values were obtained when pulses with bigger change of potential were used although the best results were shown by the pulse sequence which included an intermediate pulse before the relevant pulse. A mathematical model based on trolox pattern was developed to predict antioxidant capacity of aliso, employing information obtained from all the electrodes, although model validation could be done only employing the information from gold electrode.Fuentes-Pérez, EM.; Alcañiz Fillol, M.; Contat-Rodrigo, L.; Baldeon-Chamorro, E.; Barat Baviera, JM.; Grau Meló, R. (2017). Influence of potential pulses amplitude sequence in a voltammetric electronic tongue (VET) applied to assess antioxidant capacity in aliso. Food Chemistry. 224:233-241. doi:10.1016/j.foodchem.2016.12.076S23324122

Novel dual single sided silicon strip detector chip for radiotherapy verification

A novel dual single sided silicon strip detector (SSSSD) chip was designed to meet clinical requirements in radiotherapy verification. An available design from Micron Semiconductor Ltd. (BB7, 500 µ m thick) was the base of a two-dimensional detector adapted into a special configuration with the aim of uniforming and minimizing foreing materials around the active area (64 × 64 mm2). With this purpose, two independent BB7 SSSSDs were mounted in a perpendicular configuration, separated by a 500 µ m kapton dielectric film with the same dimensions as the silicon wafers, thus minimizing air gaps in between. This new configuration, called the dual SSSSD chip design, was mounted on kapton printed circuit board (PCB). Both silicon wafers were divided into 32 strips, 2 mm width each. The aim of developing this detector was to allow 2D dose measurements, improve spatial resolution and perform radiotherapy treatment verification faster than with a previous prototype. Characteristics and performance of the novel detector are presented

Use of impedance spectroscopy for predicting freshness of sea bream (Sparus aurata)

In the present study, the use of a rapid portable system based on impedance spectroscopy to assess fish freshness has been tested. The evolution of different physical and chemical parameters (moisture, fat, pH and TVBN) and impedance measurements (modulus and phase at different frequencies) of six different batches of sea bream (Sparus aurata) were analysed. Impedance spectroscopy was able to classify raw matter into six groups according to composition differences, and also to classify those samples stored for a time of between 0 and 15 days into different groups according to degree of freshness. TVB-N is one of the most usual parameters to assess shelf life periods of fish samples; the coefficient of determination (R2) of 0.72 obtained in the Partial Least Squares regression for this parameter confirmed the potential application of the impedance spectroscopy for predicting sea bream freshnessThe authors gratefully acknowledge financial support from the Spanish Government (Project AGL2010-20539). E.P. is grateful to the Spanish Ministry of Science and Innovation for his grant (AP2008-00620).Pérez-Esteve, É.; Fuentes López, A.; Grau Meló, R.; Fernández Segovia, I.; Masot Peris, R.; Alcañiz Fillol, M.; Barat Baviera, JM. (2014). Use of impedance spectroscopy for predicting freshness of sea bream (Sparus aurata). Food Control. 35(1):360-365. https://doi.org/10.1016/j.foodcont.2013.07.025S36036535

Approach to identification and characterization of the new and emerging risks associated with Industrial Green Building

The subsector of industrial building has undergone changes in recent years. These have been: economic changes, as a result of the economic crisis experienced by the construction sector, structural changes because many companies specializing in industrial construction have disappeared, regulatory changes by the emergence of new requirements and functional changes because industrial establishments have been become an image of the brand or company. These changes have led to the emergence of new risks to the safety and health of workers or have increased existing risks, assuming an increased exposure or severity of the effects on workers. These risks are referred to as new and emerging risks. The aim of this communication is to carry out an approach to identification and characterization of new and emerging risks in the industrial green building subsector.This work was funded by the Ministry of Economy and Competitiveness of Spain, title: “Analysis and Assessment of technological requirements for the design of a New Emerging Risks standardized management System (A2NERSYS)” with reference DPI2016-79824-R

Proposed methodology for the study of the level of emerging risk from exposure to hand-arm vibrations in manufacturing environments

Occupational exposure to vibrations, regulated by Directive 2002/44/EC, is currently on the rise. This situation makes it necessary to increase knowledge of the exposure, considering amongst other factors, its nature as an emerging risk. To do so, a methodology has been developed for application in manufacturing environments. This has been designed by combining the principles of the DMRA Technique with a theoretical framework of new and emerging risks established from recent research. This methodology grades the Emerging Risk Level (ERL) on 9 levels, from ‘not at all significant’ (ERL=1) to “fully significant” (ERL=9). This methodology has been applied to hand-arm vibrations generated by using an electric disc grinder. Thirty-two entries from the National Institute of Safety and Health at Work (INSHT) ‘Vibra’ database have been considered for this. The main findings indicate that 55% and 36% of cases give rise to ‘moderately significant’ (ERL=7) and ‘very significant’ (ERL=8) emerging risk, respectively.This work was funded by the Ministry of Economy and Competitiveness of Spain, title: “Analysis and Assessment of technological requirements for the design of a New Emerging Risks standardized management SYStem (A2NERSYS)” with reference DPI2016-79824-R

Caracterización de un vidrio rojo medieval procedente de las vidrieras del Monasterio de las Huelgas de Burgos

En el año 2007 se culminó el proceso de restauración integral de las vidrieras que cierran los ventanales de la Sala Capitular del Claustro de S. Fernando del Real Monasterio de Santa María la Real de las Huelgas de Burgos. Un vidrio rojo, de características peculiares, extraído durante el proceso de conservación-restauración de una de las vidrieras, se ha caracterizado mediante las técnicas de Microscopía óptica de luz reflejada (MOLR), Microscopía electrónica de emisión de campo (MEEC), Fluorescencia de rayos X (FRX), Emisión de rayos X inducidos por partículas (PIXE) y Microscopía electrónica de transmisión (MET) para conocer su composición química y su estructura. Los análisis realizados por las técnicas de FRX y PIXE permiten comprobar la buena concordancia que existe entre los resultados. El vidrio analizado presenta una sección transversal muy original, formada por un vidrio soporte ligeramente verdoso y múltiples capas de color rojo, característico de los siglos XIII y XIV. El análisis mediante micro-PIXE en cámara de vacío ha permitido obtener información sobre la distribución en profundidad de los elementos que lo componen.In the year 2007 the process of conservation-restoration of the windows of the apostles that close the windows of the Chapter Hall of Cloister of S. Fernando del Real Monasterio de Santa María la Real de las Huelgas de Burgos was completed the process. A red glass obtained from the process of conservation and restoration has been characterized by Optical microscopy by light reflected (OMLR), Field emission scanning electron microscopy (FE-SEM), X ray fluorescence espectrpmetry (XRF), Particle induced X ray emission (PIXE), Transmission electron microscopy (TEM) to identify the chemical composition and structure. Chemical analys by XRF and PIXE are in the good agreement. The studied glass has a very original cross section, consisting of a lightly greenish glass holder and multilayers of red glass, characteristic of the thirteenth and fourteenth centuries. A elemental mapping of the cross-section showing the distribution of elements in the glass has been obtained by micro PIXE analysis in a vacuum chamber

Effect of angiotensin II and small GTPase Ras signaling pathway inhibition on early renal changes in a murine model of obstructive nephropathy

This is an open access article distributed under the Creative Commons Attribution License.Tubulointerstitial fibrosis is a major feature of chronic kidney disease. Unilateral ureteral obstruction (UUO) in rodents leads to the development of renal tubulointerstitial fibrosis consistent with histopathological changes observed in advanced chronic kidney disease in humans. The purpose of this study was to assess the effect of inhibiting angiotensin II receptors or Ras activation on early renal fibrotic changes induced by UUO. Animals either received angiotensin II or underwent UUO. UUO animals received either losartan, atorvastatin, and farnesyl transferase inhibitor (FTI) L-744,832, or chaetomellic acid A (ChA). Levels of activated Ras, phospho-ERK1/2, phospho-Akt, fibronectin, and α-smooth muscle actin were subsequently quantified in renal tissue by ELISA, Western blot, and/or immunohistochemistry. Our results demonstrate that administration of angiotensin II induces activation of the small GTPase Ras/Erk/Akt signaling system, suggesting an involvement of angiotensin II in the early obstruction-induced activation of renal Ras. Furthermore, upstream inhibition of Ras signalling by blocking either angiotensin AT1 type receptor or by inhibiting Ras prenylation (atorvastatin, FTI o ChA) reduced the activation of the Ras/Erk/Akt signaling system and decreased the early fibrotic response in the obstructed kidney. This study points out that pharmacological inhibition of Ras activation may hold promise as a future strategy in the prevention of renal fibrosis.This study was supported by grants from Ministerio de Economía y Competitividad (Grant SAF2010-15881 and Red de Investigacion Cooperativa en Enfermedades Renales REDINREN RD12/0021/0032), Junta de Castilla y León (Grant SA 001/C05 and Excellence Group GR100), and REDINREN which is an initiative of the Instituto de Salud Carlos III of Spain supported by FEDER funds. When performing the present study, Ana B. Rodríguez-Pena was a fellow of the Fundacion Renal “Iñigo Ávarez de Toledo” and Neil G. Docherty was a fellow ofThe Marie Curie Programme, EU.Peer Reviewe