355 research outputs found
Perspectiva cualitativa y cuantitativa del autoconcepto físico y la imagen corporal de los diferentes profesionales de la actividad física y del deporte
El objetivo del estudio fue analizar, desde un enfoque mixto cuantitativo-cualitativo, de qué manera el autoconcepto físico y la imagen corporal determinan el desarrollo de la identidad de los profesionales de la actividad física y el deporte: entrenadores personales, monitores, maestros y profesores de Educación Física. 481 personas cumplimentaron on-line un cuestionario de autoconcepto físico y 18 de ellas fueron entrevistadas en profundidad. Los resultados cuantitativos mostraron que existen diferencias significativas en la imagen corporal, la competencia deportiva, la condición física o la competencia física general entre estos grupos y la población general, aunque no entre ellos; a nivel global hubo diferencias significativas a favor de los varones en todas ellas. Los resultados cualitativos se analizaron en torno a tres temas: los rasgos físicos identitarios de la profesión, el vínculo entre la imagen corporal y la profesión y la relación entre la cultura del consumo, la imagen corporal y la profesión. Mostraron que hay diferencias entre los profesionales del fitness y los docentes, ya que para los primeros la imagen corporal es un rasgo identitario mucho más fuerte que depende de ellos, pero también de factores externos a ellos y que son muy dependientes de la cultura del consumo.The main goal of this study was to assess, from a mixed quantitative-qualitative perspective, how physical self-concept and body image determine the identity development of the sport and physical activity professionals: personal trainers, coaches, and physical education teachers (primary and secondary education). 481 individuals completed and on-line questionnaire on physical self-concept and 18 of them were interviewed. Quantitative results showed that there are significant differences regarding body image, sport competence, physical conditioning and global physical competence among these groups and general population, but not among them; globally, significant differences favoured males in all variables. Quantitative results were analyzed around three themes: identity traits of the profession, link between body image and the profession, and the connection between the consumer culture, body image and profession. They showed differences between fitness professionals and teachers; for the first ones, body image is a strong indentify trait that depends on them, but also on external factors to them, and they are very dependent of the consumer culture.O objetivo do estudo foi analisar, desde uma perspectiva mixta quantitativa e qualitativa, de que maneira o autoconceito físico e a imagem do corpo determinam o desenvolvimento da identidade dos profissionais da atividade física e desporto: instrutores pessoais, treinadores, professores de educação física. Questionários on-line de autoconceito físico foram preenchidos por 481 pessoas e com 18 delas foram realizadas entrevistas em profundidade. Os resultados quantitativos mostraram que existem diferenças significativas quanto à imagem corporal, à competência esportiva, aptidão física ou competência física geral entre estes grupos e a população em geral, porém não entre eles mesmos; globalmente houve diferenças significativas em favor dos homens em todas elas. Os resultados qualitativos foram analisados ao redor de três temas: as características físicas identitárias da profissão, o vínculo entre a imagem corporal e a profissão e a relação entre cultura de consumo, imagem corporal e a profissão. Eles mostraram que existem diferenças entre profissionais de fitness e professores, porque para os primeiros a imagem do corpo é um traço de identidade muito mais forte que depende de sí mesmos, mas também de fatores que lhe são externos e que são muito dependentes da cultura de consumo
Domed buildings in the twelfth century. The monastery of "Santa Maria de Moreruela"
The monastery of “Santa Maria de Moreruela”, whose origins according to many historians date from the twelfth century, is the first of the Cistercian enclaves built on the Iberian Peninsula. It is now in ruins and is considered one of the great examples of the cultural heritage of the province of Zamora. This paper aims to raise awareness of how the Cistercian churches were designed, the contribution of the Castilian quarries to their construction, and the development of the vaults over the time passed from their inception until the completion of the work, using this Monastery as an example. European culture came to Castile with the appearance of the Romanesque style from the hands of the French Benedictine monks; later, Cistercian monks introduced the Gothic style. Thus, the vaults have evolved from the Romanesque rounded vault to the Gothic ogive, the changes being attributed to structural elements and also to the design of thinner walls with more lights. In the case of the Monastery of Moreruela, this has a basilica church plan, which is typical of the twelfth century, with the same design as that built by the Cistercian order in the French Midi, who along the years of construction changed the design of their arches and vaults. The most significant vaults of the church of the Monastery of Moreruela, whose styles changed as they were built during several phase,, are classified and displayed in the order in their construction: Header.Transept. Central nave. Aisle
El ámbito subjetivo de la Libertad Sindical
El presente trabajo fin de grado trata de analizar de forma pormenorizada, el ámbito
subjetivo de la libertad sindical.
Su regulación se encuentra dispersa y matizada a lo largo de los años, por la
jurisprudencia.
Por tanto, el estudio de los colectivos incluidos y excluidos de su ámbito subjetivo, se
hace desde un doble enfoque, la legislación tanto pasada como vigente para analizar la
evolución de la misma, y desde el punto de vista de la jurisprudencia.Grado en Relaciones Laborales y Recursos Humano
Caracterización clínica de la púrpura de Schoenlein-Henoch
RESUMEN: Las vasculitis sistémicas son un grupo complejo de enfermedades que se caracterizan por la afectación inflamatoria de los vasos.
La Púrpura de Schoenlein-Henoch (PSH), aunque es más frecuente en niños no es excepcional en adultos y su pronóstico viene determinado por la afectación renal que fue más frecuente y grave en los adultos que en los niños.
Aunque en la PSH y la vasculitis de hipersensibilidad el hallazgo histológico fundamental es la vasculitis leucocitoclástica y presentan una afectación cutánea similar, son dos entidades clínicamente diferentes, con mayor afectación sistémica y un pronóstico menos favorable en la PSH.
La nefropatía de la PSH y la nefropatía IgA (NIgA), se han considerado dos estadios evolutivos de la misma enfermedad, sin embargo constituyen dos entidades clínicas diferentes, siendo la afectación renal más severa en la NIgA y las manifestaciones extra-renales más frecuentes en la PSH.ABSTRACT: Systemic vasculitis is a complex group of diseases characterized by inflammatory involvement of the blood vessels.
Henoch-Scönlein purpura (HSP) is more common in children,than in adults. The prognosis is determined by renal involvement, which is more frequent and severe in adults than in children.
Although the fundamental histologic finding in HSP and hypersensitivity is leukocytoclastic vasculitis and both have a similar skin involvement, they are two clinically different entities, with a greater systemic involvement and a less favourable prognosis in HSP.
HSP nephropathy and IgA nephropathy (IgAN) are considered two developmental stages of the same disease, however they are two different clinical entities, the most severe is the IgA with renal involvement and more frequent extra-renal manifestations in HSP
Effects of a Cooperative Learning Intervention Program on Cyberbullying in Secondary Education: A Case Study
The goal was to assess the effects of an intervention program, based on cooperative learning and involving the whole school community, on the emotional and social evolution of a student who had suffered cyberbullying. The student, her parents, the school administration, a teacher and the student\u27s classmates agreed to participate in the study. A qualitative research design was used, which included interviews, discussion groups and diaries. The information obtained was structured in three categories: cyberbullying detection and response, psychoeducational intervention program, and emotional and social evolution. Results showed that the program produced significant improvements in the cyberbullied adolescent\u27s emotional and social state. The teacher, the school administrators and the parents observed these positive changes in the adolescent and her classmates, since the class\u27 social climate had improved too. It seems important to establish protocols to detect cyberbullying behaviours, as well as intervention programs to deal with this problem that involve the whole school community
Comparing effects of a TPSR training program on prospective physical education teachers’ social goals, discipline and autonomy strategies in Spain, Chile and Costa Rica
Background: Conflict prevention, respect, tolerance and acceptance of others should be basic outcomes in any educational context. Physical Education (PE) has the potential to be one of the curricular subjects that could help students meet these goals. However, teachers need to use appropriate instructional approaches like Teaching for Personal and Social Responsibility (TPSR).
Purpose: The objectives of this study were two: (1) to compare the impact of TPSR training on social goals, discipline strategies and autonomy support of future PE teachers from Spain, Chile and Costa Rica; and (2) to assess participants’ perceptions of their country's social, cultural and curricular aspects that may influence TPSR implementation.
Participants and settings: 156 prospective PE teachers (48 from Spain, 54 from Chile and 54 from Costa Rica), with an average age of 21.41 ± 2.57 years, agreed to participate. 88 (54%) were males, while 75 (46%) were female. They were enrolled in teacher training programs in three different universities located in three different countries: (i) Faculty of Education of the University of Burgos (Spain); (ii) Nursery School of the University of Valparaiso (Chile) and (iii) School of Physical Education and Sports of San José (Costa Rica). All students experienced the same TPSR intervention program, conducted by the same university teacher.
Research design: This study followed a quasi-experimental, pre-test/post-test non-equivalent research design with mixed methods.
Data collection: Three validated questionnaires were used to obtain quantitative information from the participants before and after the training program. Qualitative information was obtained from three discussion groups conducted with the participating students (one from each country).
Data analysis: Statistical analysis of quantitative data was conducted with the statistical package SPSS (version 22.0), while content analysis and constant comparison were used to assess qualitative data.
Findings: The prospective PE teachers from the three countries held different views of the effects of the TPSR program on social goals, discipline strategies and autonomy support, and they were based on socio-cultural considerations of the subject (PE), the teachers’ academic training and their professional identity as teachers on each country. Spanish and Costa Rican PE teachers demonstrated a significant positive change in their perspectives on discipline strategies, and Chilean PE teachers demonstrated a significant positive change in their perception of social goals after experiencing a TPSR intervention.
Conclusion: If cultural context is considered, TPSR can be an effective teacher training approach related to discipline strategies, social goals and autonomy support in PE
Relapses in patients with Henoch-Schönlein purpura: Analysis of 417 patients from a single center
To further investigate into the relapses of Henoch?Schönlein purpura (HSP), we analyzed the frequency, clinical features, and predictors of relapses in series of 417 unselected patients from a single center. After a median follow-up of 12 (interquartile range [IQR]: 2?38) years, almost one-third of the 417 patients (n=133; 32%; 85men/48 women) had experienced at least 1 relapse. At the time of disease diagnosis, patients who later experienced relapses had less commonly infections than those who never suffered flares (30.8% vs 41.9%; P=0.03). In contrast, patients who experienced relapses had a longer duration of the first episode of palpable purpura than those without relapses (palpable purpura lasting >7 days; 80.0% vs 68.1%; P=0.04). Abdominal pain (72.3% vs 62.3%; P=0.03) and joint manifestations (27.8% vs 15.5%; P=0.005) were also more common in patients who later developed relapses. In contrast, patients who never suffered relapses had a slightly higher frequency of fever at the time of disease diagnosis (9.3% vs 3.8%; P=0.06). At the time of disease diagnosis, corticosteroids were more frequently given to patients who later had relapses of the disease (44% vs 32% in nonrelapsing patients; P=0.03). Relapses generally occurred soon after the first episode of vasculitis. The median time from the diagnosis of HSP to the first relapse was 1 (IQR: 1?2) month. The median number of relapses was 1 (IQR 1?3). The main clinical features at the time of the relapse were cutaneous (88.7%), gastrointestinal (27.1%), renal (24.8%), and joint (16.5%) manifestations. After a mean±standard deviation follow-up of 18.9±9.8 years, complete recovery was observed in 110 (82.7%) of the 133 patients who had relapses. Renal sequelae (persistent renal involvement) was found in 11 (8.3%) of the patients with relapses. The best predictive factors for relapse were joint and gastrointestinal manifestations at HSP diagnosis (odds ratio [OR]: 2.22; 95% confidence interval [CI]: 1.34?3.69, and OR: 1.60; 95% CI: 1.01?2.53, respectively). In contrast, a history of previous infection was a protective factor for relapses (OR: 0.60; 95% CI: 0.38?0.94). In conclusion, joint and gastrointestinal manifestations at the time of diagnosis of HSP are predictors of relapses
Intracellular virion traffic to the endosome driven by cell type specific sialic acid receptors determines parvovirus tropism
Parvoviruses are promising anticancer and gene therapy agents, but a deep knowledge of the entry process is crucial to exploit their therapeutic potential. We addressed this issue while attempting to retarget the oncolytic parvovirus minute virus of mice (MVMp) to the tumor vasculature. Residues at three functional domains of the icosahedral capsid were substituted by rational design with peptides competing with the vascular endothelial growth factor. Most substitutions impaired virus maturation, though some yielded infectious chimeric virions, and substitutions in a dimple at the twofold axis that allocates sialic acid (SIA) receptors altered viral tropism. One dimple-modified chimeric virion was efficiently attached as MVMp to α2-linked SIA moieties, but the infection was impaired by the binding to some inhibitory α2-3,-6,-8 SIA pseudoreceptors, which hampers intracellular virus traffic to the endosome in a cell type-dependent manner. Infectious from nonproductive traffic could be mechanistically discriminated by an endosomal drastic capsid structural transition comprising the cleavage of some VP2-Nt sequences and its associated VP1-Nt exposure. Correspondingly, neuraminidase removal of inhibitory SIA moieties enhanced the infection quantitatively, correlating to the restored virus traffic to the endosome and the extent of VP2-Nt cleavage/VP1-Nt exposure. This study illustrates (i) structural constraints to retarget parvoviruses with evolutionary adopted narrow grooves allocating small SIA receptors, (ii) the possibility to enhance parvovirus oncolysis by relaxing the glycan network on the cancer cell surface, and (iii) the major role played by the attachment to cell type-specific SIAs in the intracellular virus traffic to the endosome, which may determine parvovirus tropism and host rang
Line spread function formulation proposed by W. H. Steel: A revision
A revised formulation of the image Light distribution of an incoherent line source proposed by Steel [Rev. Opt. 31, 334-340 (1952)] is presented. Analytical and numerical results based on this new representation are given. We explicitly show that a major error in Steel's final expression generates singularities, thereby preventing convenient numerical computation
Effects of a Cooperative Learning Intervention Program on Cyberbullying in Secondary Education: A Case Study
[EN] The goal was to assess the effects of an intervention program, based on cooperative learning and involving the whole school community, on the emotional and social evolution of a student who had suffered cyberbullying. The student, her parents, the school administration, a teacher and the student's classmates agreed to participate in the study. A qualitative research design was used, which included interviews, discussion groups and diaries. The information obtained was structured in three categories: cyberbullying detection and response, psychoeducational intervention program, and emotional and social evolution. Results showed that the program produced significant improvements in the cyberbullied adolescent's emotional and social state. The teacher, the school administrators and the parents observed these positive changes in the adolescent and her classmates, since the class' social climate had improved too. It seems important to establish protocols to detect cyberbullying behaviours, as well as intervention programs to deal with this problem that involve the whole school community.S
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