El Abandono Escolar Temprano es un problema que preocupa a los países de todo el mundo. Esto se debe a que afecta directamente tanto a la vida de los estudiantes que abandonan como a la sociedad en general. El objetivo del presente estudio es conocer la percepción que tienen los docentes de las etapas de Educación Primaria, Educación Secundaria Obligatoria y Bachillerato sobre las variables más influyentes en el Abandono Escolar Temprano. La investigación llevada a cabo sigue una metodología de encuesta, mediante la administración de un cuestionario con 85 variables identificadas en la literatura científica. Se obtuvieron 134 respuestas de docentes de toda España. Los resultados indican que las variables consideradas más relacionadas con el Abandono Escolar Temprano son las vinculadas a características individuales y familiares. En menor medida, se consideran relacionadas la actividad escolar del individuo como estudiante, la actitud del profesorado, el comportamiento de los compañeros de clase y las características del centro. Se concluye que estamos ante un fenómeno de causas complejas que no debe ser abordado exclusivamente desde una perspectiva académica sino multidisciplinar. Early School Leaving is a problem that worries countries around the world. This is because it directly affects both the lives of students who abandon and society in general. The objective of the present study is to know the perception that Primary Education, Compulsory Secondary Education and Upper Secondary Education teachers have on the most influential variables that affect Early School Leaving. The research carried out follows a survey methodology, by administering a questionnaire with 85 variables identified in the scientific literature. 134 responses were obtained from teachers throughout Spain. The results indicate that the variables considered more related to Early School Leaving are those related to individual and family characteristics. To a lesser extent, the school activity of the individual as a student, the attitude of the faculty, the behaviour of the classmates and the characteristics of the school are considered related. We conclude that we are facing a phenomenon of complex causes that should not be approached exclusively from an academic perspective but multidisciplinary.

Purpose. To systematically review and organise the available literature devoted to the topic of genetics and performance in football. Methods. A systematic search was conducted in accordance with the PRISMA guidelines in Web of Science, SPORTDiscus, and PubMed for original research published before October 2019. The following keywords were entered: 'Soccer' OR 'Football' AND 'Genetic' OR 'Epigenic' OR 'Powergene' OR 'Genomic' OR 'Genotype' OR 'Polymorphism' OR 'Genetic marker'. Articles were screened by using pre-defined selection criteria, and methodological quality was assessed independently by 2 authors. Results. The electronic searches yielded 872 articles, and after the screening process, a total of 38 studies met the eligibility criteria and were subsequently included for review. Conclusions. The reviewed studies identified the most frequently addressed topics in this area of research: (1) performancerelated genes; (2) injury-related genes; (3) body composition-related genes; and (4) cardiac adaptations. This area of research is still at an early stage, and there is a need for studies to develop knowledge of genetics and its link with physical, technical, and cognitive performance in football with a view to facilitating talent identification in young players.

Medical imaging has become an absolutely essential diagnostic tool for clinical practices; at present, pathologies can be detected with an earliness never before known. Its use has not only been relegated to the field of radiology but also, increasingly, to computer-based imaging processes prior to surgery. Motion analysis, in particular, plays an important role in analyzing activities or behaviors of live objects in medicine. This short paper presents several low-cost hardware implementation approaches for the new generation of tablets and/or smartphones for estimating motion compensation and segmentation in medical images. These systems have been optimized for breast cancer diagnosis using magnetic resonance imaging technology with several advantages over traditional X-ray mammography, for example, obtaining patient information during a short period. This paper also addresses the challenge of offering a medical tool that runs on widespread portable devices, both on tablets and/or smartphones to aid in patient diagnostics.

El siguiente artículo de Diego González incluye la descripción de los pasos de la tercera y última práctica de la asignatura Lenguajes y estándares web que consistió en el rediseño de una página web a través de varias estrategias utilizadas en la actualidad.

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