Validation of the IOLF5C instrument for the efficacy of shooting on goal in football for the blind

El objetivo del estudio es diseñar y validar un instrumento de observación para conocer los Indicadores de Rendimiento Competitivo en Fútbol a 5 para personas ciegas a través de jueces expertos. La muestra se compuso por 12 entrenadores expertos en Fútbol a 5. Tras la realización de un estudio preliminar, el IOLF5C quedó estructurado en dos partes: acciones básicas durante el lanzamiento a portería en situaciones de juego, y durante el penalti. La validez de contenido se realizó a través de la V de Aiken y sus intervalos de confianza. Para comprobar la consistencia interna del instrumento se empleó α de Cronbach. Los resultados indicaron que el IOLF5C dispone de niveles óptimos de validez obteniendo valores superiores a 0,875 en todos los ítems durante el juego y 0,96 en penalti. La consistencia del instrumento fue de 0,894. Por tanto, el IOLF5C es un instrumento válido y fiableThe aim of this study was to design and validate an observational instrument to identify essential competitive performance indicators in Football 5-a-Side for blind and partially sighted players through the assistance of expert evaluators. The sample was comprised of twelve Football 5-a-Side expert coaches. After a preliminary study, the OLF5C instrument was structured to include two groups of actions: basic actions during shots on goal in game situations and shooting actions penalty situations. Aiken's V statistic and confidence interval values were used to assess the content validity and Cronbach' value was used to assess the internal consistency of the instrument. Results indicated that the IOLF5C has good validity indices with obtained values reaching .875 in all items during game situations and 0.96 on penalty shot actions. The overall level of instrument consistency was .894. The IOLF5C is considered to be a valid and reliable instrumen

Recovery and musealization of war trenches

[EN] At a time of incresing popularity of the war heritage of the province of Teruel, the coordination between different territorial administrations and the establishment of common guidelines is more necessary than ever to lead interventions in this type of sites. The work carried out in the positions of Santa Bárbara and Loma de Casares in Celadas (Teruel) are an example of how the authors understand that the conservation and enhancement of the vestiges of the Spanish Civil War should be approached, in which difficulties such as access to the position, great extension, poor workmanship and an advanced state of abandonment and deterioration converge. This work also illustrates the integral and interdisciplinary character recommended in this type of projects, which addresses the historical documentation, the interpretation of the position and the delimitation of the intervention areas, the work of archaeological excavation, the adequacy of accesses, and even signaling, promotion and tourist diffusion.[ES] En un momento en el que el patrimonio bélico de la provincia de Teruel goza de una popularidad creciente, se hace más necesario que nunca la coordinación entre las distintas administraciones territoriales y el establecimiento de unas directrices comunes que guíen las intervenciones en este tipo de enclaves. Los trabajos realizados en las posiciones de Santa Bárbara y Loma de Casares en Celadas (Teruel) son un ejemplo de cómo los autores entienden que deben abordarse la conservación y puesta en valor de los vestigios de la guerra civil española, en los que confluyen dificultades como el acceso al enclave, su gran extensión, una pobre factura y un avanzado estado de abandono y deterioro. En este trabajo también se ilustra el carácter integral e interdisciplinar que se recomienda en este tipo de proyectos, y que aborda desde la documentación histórica, la interpretación de la posición y la delimitación de las zonas de intervención, hasta las labores de excavación arqueológica, adecuación de accesos, señalización, promoción y difusión turística.García Enguita, A.; Ibáñez González, J.; Sáez Abad, R.; Villalba Alegre, I. (2023). Recuperación y musealización de trincheras de guerra. Loggia, Arquitectura & Restauración. (36):92-105. https://doi.org/10.4995/loggia.2023.19983921053

Tracer test modeling for characterizing heterogeneity and local-scale residence time distribution in an artificial recharge site

Artificial recharge of aquifers is a technique for improving water quality and increasing groundwater resources. Understanding the fate of a potential contaminant requires knowledge of the residence time distribution (RTD) of the recharged water in the aquifer beneath. A simple way to obtain the RTDs is to perform a tracer test. We performed a pulse injection tracer test in an artificial recharge system through an infiltration basin to obtain the breakthrough curves, which directly yield the RTDs. The RTDs turned out to be very broad and we used a numerical model to interpret them, to characterize heterogeneity, and to extend the model to other flow conditions. The model comprised nine layers at the site scaled to emulate the layering of aquifer deposits. Two types of hypotheses were considered: homogeneous (all flow and transport parameters identical for every layer) and heterogeneous (diverse parameters for each layer). The parameters were calibrated against the head and concentration data in both model types, which were validated quite satisfactorily against 1,1,2-Trichloroethane and electrical conductivity data collected over a long period of time with highly varying flow conditions. We found that the broad RTDs can be attributed to the complex flow structure generated under the basin due to three-dimensionality and time fluctuations (the homogeneous model produced broad RTDs) and the heterogeneity of the media (the heterogeneous model yielded much better fits). We conclude that heterogeneity must be acknowledged to properly assess mixing and broad RTDs, which are required to explain the water quality improvement of artificial recharge basins.Peer ReviewedPostprint (published version

Changes in bariatric patients’ physical activity levels and health-related quality of life following a postoperative motivational physical activity intervention

Purpose: Self-determination theory (SDT) has been widely used as a useful motivational framework for improving long-term adherence to physical activity (PA) and health-related quality of life (HRQoL). The aim of this study was to examine the effects of a 6-month motivational PA intervention (MPAI) on bariatric patients’ PA levels and HRQoL from pre-surgery to the end of the MPAI (7 months post-surgery). Additionally, a re-test was performed 13 months post-surgery. Methods: 40 participants undergoing sleeve gastrectomy were assigned to a 6-month MPAI or to a control group. The MPAI was based on techniques and messages from SDT. At baseline and post-intervention measures, both groups wore accelerometers for one week and completed the SF-36 questionnaire. Results: 32 participants (78.1% female) completed all measures and were included in the final analyses. PA levels did not significantly differ between groups as a consequence of the intervention. Clinically significant differences (d ≥ 0.5) favoring the MPAI group were found for SF-36 domains of bodily pain (at pre-surgery, increasing at 7- and 13-months post-surgery), general health and vitality (7 months post-surgery), and physical functioning and the physical component score (both 7- and 13-months post-surgery). Social functioning also showed clinically significant differences favoring the MPAI group at pre-surgery, increasing at 7 months post-surgery. These differences disappeared at 13 months post-surgery. Conclusions: SDT-based PA interventions could enhance several dimensions of bariatric patients’ HRQoL after surgery. Further research is needed to understand what motivational processes are key aspects to promote PA participation in these patients

Comparison of Raman-scattering and Shubnikov-de Haas measurements to determine charge density in doped semiconductors

We have verified the accuracy of free-charge determinations from Raman scattering in doped semiconductors by comparing the results obtained from phonon-plasmon coupled-mode line-shape fits with the charge-density values extracted from the analysis of the Shubnikov-de Haas oscillations. The experiments were carried out on n-InP layers, and conduction band nonparabolicity was included both in the Lindhard-Mermin model used to fit the Raman spectra and in the Shubnikov-de Haas analysis. We find a very good agreement between Raman and magnetotransport results, which confirms the reliability of the charge-density determination from Raman-scattering measurements when the line-shape analysis is carried out using the Lindhard-Mermin model

Current threats to soils and ecosystems in Spain

6 páginas y 1 figuraThe environmental problems which affect Spanish land result from the Mediterranean climate, from many centuries of exploitation of ecosystems that are very susceptible to erosión and desertification, and from more recent ecological risks which arise from a society based on industrial development and technology. Some of these aspects of environmental deterioration are common to all of the countries in the European Community, but some are particularly serious in southern Europe and others are limited to the Mediterranean environment. This paper focuses particularly on the latter two situations, as they are least well known in the central and northern countries of Europe.Peer reviewe

Anthropometric profiles in table tennis players: Analysis of sex, age, and ranking

Table tennis has recently evolved towards a more spectacular sport increasing match-play demands and the intensity and speed of actions by regulations and equipment modification. Since these changes can alter the body composition and performance, this study aimed to analyze the differences in anthropometric attributes of 495 table tennis players (288 men, 207 women) according to sex, age, and ranking. Players were classified according to sex, age categories (Senior, Under-18, Under-15, Under 13, and Under 11), and ranking position. Anthropometry measurements included eight skinfolds’ thicknesses (biceps brachii, triceps, subscapular, iliac crest, supraspinal, abdominal, thigh, and medial calf), four girths (biceps brachii relaxed and contracted, thigh, and calf), and three breadths (biepicondylar femur, biepicondylar humerus, and bistiloyd wrist) to determine fat mass, lean mass, bone, cross sectional area (CSA) for arm, leg, and thigh, and somatotype. Results revealed that table tennis players presented differences in body mass composition, anthropometry, and somatotype according to sex and age category and ranking. It seems confirmed that regular table tennis practice during the childhood is associated with a healthy body composition status, that appears to be maintained across older ages if keeping the practice. Senior table tennis players showed a fat mass <20% and lean mass ~45% in men and ~37% in women. A new contribution is that higher lean mass in the upper limbs was associated with higher ranking position (i.e., better performance), endomorphic somatotypes were negative related to performance, and ectomorphic profiles seems more effective, which suggest the potential influence of morphologic changes in table tennis competition performance

Rule reactivation and capture errors in goal directed behaviour

In everyday life people may act automatically, following "unwanted" lines of action which are triggered by contextual cues and may interfere with current goals. Such occurrences are known as "capture errors" in reference to errors that occur when a more salient behaviour takes place when a similar, but less salient, action was intended. Clinical neuropsychological studies suggest that reactivation of previous rules may play an important role in behavioural interference, but such reactivation has been little studied in normal subjects and simple experimental tasks. In the present study we develop this theme, presenting data on 4 subjects who spontaneously showed capture errors in verbal fluency tasks, and developing a new experimental paradigm specifically designed to elicit such interference in normal subjects. In the new paradigm, 101 normal subjects performed a simple series of working memory tasks, including occasional stimuli whose answer matched both the current and the previous rule. We found that normal controls indeed tend to commit more mistakes after the presentation of a stimulus whose answer is consistent with a current and preceding rule. In this case, however, the errors produced are not necessarily associated with a shift back to the old rule, suggesting that rule reactivation leads to a more general interference effect. We discuss the importance of our data from both theoretical and clinical perspectives

Extrusion of Ingot and Powder Metallurgy Aluminum Matrix Composites Profiles

Several profiles with the same extrusion ratio were extruded from three monolithic alloys and five aluminum matrix composites (AMCs) prepared by ingot and powder metallurgy (PM). Specifically, AA6061 and AA6063 were reinforced by 10 and 25 vol.% of Al2O3 and MoSi2 intermetallic particles. To study the wear of the dies, high temperature pin-on-disk tests were performed. The results show that the composite profiles present high surface and dimensional quality and that the die steel wears slightly more against the cast composite. Maximum extrusion pressure (Pmax) depends on profile shape and increases in the following order: bar, T, L and U, and tube. It also increases as volume fraction of reinforcement increases. In general, cast materials are easier to extrude than PM ones, and MoSi2 reinforced AMCs are easier to extrude than Al2O3 ones. AMCs processed by PM have significantly higher hardness than the cast AMC and the monolithic alloys. The PM composites do not need any heat treatment to acquire maximum hardness. By adding reinforcing particles to aluminum, a significant increase in tensile strength and stiffness occur. The high tensile strength and modulus of the present PM composites, without a decrease in specific properties, makes these AMCs interesting for structural applications.Spanish project TRACE2009_0251 from MICINN, Spain, and EXTRUGASA, Galicia, Spain, are gratefully acknowledged. Thanks are also due to Amalia San Román and Miguel Acedo for their help with the experimental work.Peer reviewe

Erosión costera y cambio ambiental en el humeral de Cabanes-Torreblanca (Castelló). Datos para una gestión sostenible

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