81 research outputs found

    Assessment of adolescent self-constructed material use in physical education

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    the goals of this research project were three: study how secondary education students value self-made materials, assess their effects while used to teach sport, and analyze how the students’ perspective on these materials change over age and gender. Students from a high school in the north part of Spain agreed to participate. They belonged to 1st, 2nd, and 4th year of secondary education. They were asked to build their own self-made cardboard ringo with recycled materials to use it during an ultimate learning unit. A hybrid instructional method (tactical games + sport education) was used along 8-10 sessions. After the intervention, subjects filled out a 15-item questionnaire (1-5 likert point scale). Overall results showed that subjects did not consider that building the ringo was hard. Finding the material was not difficult, either. They also thought that using the ringo was more fun than using the traditional Frisbee. Younger students valued the experience higher than older subjects. The usage of self-made materials was more attractive, motivating and useful for 1st year subjects. They also though that this type of material had helped them improve their throwing and catching skills. They even wanted to use it in extracurricular setting

    Estimation of the Flow Characteristics Between the Train Underbody and the Ballast Track

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    The purpose of this work is to estimate the equivalent roughness of the ground below the train, which consists of both ballast and sleepers. The motivation is that, in order to study the flow between the train and the ground utilizing a Reynolds Averaged Stress model, and to make a stationary analysis, the sleepers can not be treated individually and have to be considered as a part of the roughness of the ground. The flow under a train can be simplified in order to study the effect of the wall made up by sleepers and ballast. The easiest configuration to carry out this work is that corresponding to two-dimensional fully developed flow, in which periodic boundary conditions can be imposed at the entrance and exit. The Couette flow has been chosen, because it is the easiest one, and besides represents better the physics of the flow below the train. A k-coclosure model to simulate turbulence was used, and calculations were carried out with Fluent. The average velocity profile is estimated and this is fitted to a logarithmic profile, from which the average roughness is obtained. The influence of the configuration on the obtained values of the equivalent surface roughness is analyzed. The following parameters have been changed: height of the gap, Reynolds number, roughness of the upper wall. The equivalent roughness seemed to be insensitive, to variations of these parameters. The influence of the turbulence closure procedure on the results has been examined and different equivalent rough nesses are obtained, depending on whether the k-coor k-eclosure procedure is used. In order to estímate the validity of the whole profile across the gap, an analytic solution of the turbulent Couette flow (using the equivalent roughness for the lower wall) has been calculated. This analytic solution is obtained using either the k-coor k-e closure model; and it turns out to be the same, independently of which of the two models is used. The comparison between the analytic solution andthe average velocity profiles is good. This analytical solution can also be of interest to estimate the shear stress in the ground that is related to the raise of the ballast. Comparisons between the analytical results for smooth walls with experiments and classical models for turbulent Couette flows have been also included

    Análisis y valoración del proceso de incorporación de las Competencias Básicas en Educación Primaria

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    The goal of this research study is to assess the integration process of the Basic Competences (CCBB) in the daily work of Primary Education teachers of a Spanish autonomous community. 412 teachers (296 women and 116 men; Mean age = 43.9 years) answered a specially designed questionnaire of 12 items in a 6-point Likert scale. Results show that the majority of the teachers had incorporated the CCBB in their class programs. However, they declared that the real degree of development of the CCBB was very low. Gender, age, initial teacher training, level of specific instruction on CCBB, and age group instructed were distinctive variables on teachers’ perceptions of CCBB integration. Teachers with a specialist profile declared that they have integrated more the CCBB that teachers with a general profile. Regarding the relevance that they give to each competence, those competences closely related to instrumental areas are considered more important than the transversal ones. However, teachers with a specialist profile considered the transversal competences more valuable, while teachers with a general profile considered the instrumental ones more important.El objeto de este trabajo es evaluar el proceso de incorporación de las Competencias Básicas (CCBB) entre los docentes de Educación Primaria. 412 maestros (296 mujeres y 116 varones; M de edad = 43,9 años) contestaron a un cuestionario ad hoc de 12 ítems en una escala Likert de 6 puntos.  Sexo, edad, formación académica inicial, nivel de formación específica en base a CCBB, así como el ciclo en donde desarrollan la docencia se mostraron como variables diferenciales en la percepción de la implantación del marco competencial. Los maestros de perfil especialista afirman trabajar con mayor referencia a las CCBB que los tutores. Aquellas competencias vinculadas a áreas instrumentales se han mostrado más relevantes que aquellas de carácter más transversal. Sin embargo, los maestros especialistas consideraron más importante las competencias transversales  frente a los tutores que enfatizaron especialmente las instrumentales

    Análisis del desarrollo curricular de la Educación Física en la Enseñanza Secundaria Obligatoria: comparación de los currículos autonómicos : Analysis of curriculum development of Physical Education in Secondary Education: comparison of regional curricula

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    P. 82-87Tres fueron los objetivos de esta investigación: a) analizar el desarrollo curricular autonómico a partir del RD 1.105/2014 que establece el currículo básico de Educación Secundaria Obligatoria (ESO) en relación a la Educación Física (EF), b) comparar la carga horaria asignada a esta asignatura, y c) examinar las diferentes posibilidades que los currículos autonómicos han contemplado para incrementar la actividad física (AF) de los estudiantes en horario lectivo. Se realizó un análisis comparativo y cualitativo de las 15 normativas curriculares autonómicas disponibles. Los resultados muestran una elevada disparidad entre las autonomías en la manera de abordar los elementos curriculares. La catalogación de la EF como asignatura específica ha provocado serias divergencias, principalmente en los contenidos. Pese a las reiteradas reivindicaciones de los docentes y profesionales de la salud, la carga horaria se ha mantenido inmutable en relación a las leyes anteriores: dos horas semanales. Con todo, la consideración de propuestas en el marco de las asignaturas de libre configuración autonómica podría representar una vía eficaz para el incremento de la AF en los centros educativosS

    Advanced lipoprotein profle disturbances in type 1 diabetes mellitus: a focus on LDL particles

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    Background: Lipoprotein disturbances have been associated with increased cardiovascular disease (CVD) risk in type 1 diabetes mellitus (T1DM). We assessed the advanced lipoprotein profle in T1DM individuals, and analysed diferences with non-diabetic counterparts. Methods: This cross-sectional study involved 508 adults with T1DM and 347 controls, recruited from institutions in a Mediterranean region of Spain. Conventional and advanced (assessed by nuclear magnetic resonance [NMR] spectroscopy) lipoprotein profles were analysed. Crude and adjusted (by age, sex, statin use, body mass index and leukocyte count) comparisons were performed. Results: The median (interquartile range) age of the study participants was 45 (38–53) years, 48.2% were men. In the T1DM group, the median diabetes duration was 23 (16–31) years, and 8.1% and 40.2% of individuals had nephropathy and retinopathy, respectively. The proportion of participants with hypertension (29.5 vs. 9.2%), and statin use (45.7% vs. 8.1%) was higher in the T1DM vs. controls (p<0.001). The T1DM group had a better conventional (all parameters, p<0.001) and NMR-lipid profle than the control group. Thus, T1DM individuals showed lower concentrations of atherogenic lipoproteins (VLDL-particles and LDL-particles) and higher concentrations of anti-atherogenic lipoproteins (HDL-particles) vs. controls, even after adjusting for several confounders (p<0.001 for all). While non-diabetic women had a more favourable lipid profle than non-diabetic men, women with T1DM had a similar concentration of LDL-par‑ ticles compared to men with T1DM (1231 [1125–1383] vs. 1257 [1128–1383] nmol/L, p=0.849), and a similar concentration of small-LDL-particles to non-diabetic women (672.8 [614.2–733.9] vs. 671.2 [593.5–761.4] nmol/L, respectively; p=0.790). Finally, T1DM individuals showed higher discrepancies between NMR-LDL-particles and conventional LDLcholesterol than non-diabetic subjects (prevalence of LDL-cholesterol1000 nmol/L: 38 vs. 21.2%; p<0.001). All these diferences were largely unchanged in participants without lipid-lowering drugs (T1DM, n=275; controls, n=317).This research was supported by grants from the Carlos III National Institute of Health (PI12/0183 and PI15/0625). CIBER for Diabetes and Associated Metabolic Diseases (CIBERDEM) and CIBER on Pathophysiology of Obesity and Nutrition (CIBEROBN) are initiatives of ISCIII, Spain. AJA received a research grant from the Associació Catalana de Diabetis (ACD), “Ajut per a la recerca en diabetis modalitat clínica 2018”

    Blastic plasmacytoid dendritic cell neoplasm frequently shows occult central nervous system involvement at diagnosis and benefits from intrathecal therapy

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    Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare aggressive myeloid neoplasm which shows a high rate of central nervous system (CNS) recurrence and overall survival (OS) of <1 year. Despite this, screening for CNS involvement is not routinely performed at diagnosis and intrathecal (IT) prophylaxis is not regularly administered in BPDCN. Here, we prospectively evaluated 13 consecutive BPDCN patients for the presence of CNS involvement by flow cytometry. Despite none of the patients presented with neurological symptoms, occult CNS involvement was detected in 6/10 cases evaluated at diagnosis and 3/3 studied at relapse/progression. BPDCN patients evaluated at diagnosis received IT treatment -either CNS prophylaxis (n = 4) or active therapy (n = 6)- and all but one remain alive (median follow-up of 20 months). In contrast, all three patients assessed at relapse/progression died. The potential benefit of IT treatment administered early at diagnosis on OS and CNS recurrence-free survival of BPDCN was further confirmed in a retrospective cohort of another 23 BPDCN patients. Our results show that BPDCN patients studied at diagnosis frequently display occult CNS involvement; moreover, they also indicate that treatment of occult CNS disease might lead to a dramatically improved outcome of BPDCN

    Geometría 3d, Estructura y formación de la cuenca del Duero en el contexto geodinámico del orógeno pirenaico

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    The Duero foreland basin is characterized by a large synformal geometry formed by the lithospheric flexure and northward subduction of the Iberian crust underneath the Cantabrian-European crust. Basin structure is represented by high-angle faults that involve both basement and cover units, and that did not generate large amounts of horizontal displacement. The northern deformation front is represented by a series of S-directed faults that probably sole into middle-lower crustal levels. Growth strata within the basin interior indicate that basement faulting occurred during the uppermost Cretaceous to Paleocene, previous to the onset of the foreland stage, while the Orogen uplift and the northern deformation front activity took place mainly between the Eocene-Oligocene, locally protracting until Miocene times. The Duero Basin behaved as an orogenic scale buttress due to the lack of an inherited Late Jurassic-Early Cretaceous extensional architecture associated with the opening of the Bay of Biscay. Hence, most of the Alpine contraction had a major impact where Mesozoic extension was more important, like the North Iberian Margin and the system of Mesozoic extensional basins of the Pyrenean rif

    Estudio de los problemas de bioensuciamiento de membranas y espumas de origen biológico en sistemas MBR de tratamiento de lixiviados

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    Alonso Molina, JL.; Moreno Trigos, MY.; Zuriaga Agusti, E.; Moreno-Mesonero, L.; Amoros, I.; Fernández-Navarro, J.; Mendoza Roca, JA.... (2016). Estudio de los problemas de bioensuciamiento de membranas y espumas de origen biológico en sistemas MBR de tratamiento de lixiviados. Retema Medio Ambiente. 193:18-26. http://hdl.handle.net/10251/98045S182619
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