Adaptación de las asignaturas de construcción del departamento de construcciones arquitectónicas II al nuevo concepto de los créditos europeos de educación superior y del campus virtual Atenea

La finalidad del presente trabajo es la adaptación a los nuevos criterios estándares (EEES) de valoración, de trabajo por parte del alumno y de guía por parte del profesor, de las asignaturas de Construcción del Departamento de Construcciones Arquitectónicas II (EPSEB); además, se prevé la incrustación de todos este trabajo en el Campus Virtual de ATENEA. Como otros objetivos colaterales de este trabajo se pueden destacar: el favorecer aun más el proceso de integración de la docencia, el facilitar la práctica dentro y fuera de las aulas, favorecer y mejora el rendimiento educativo de los propios alumnos, y por último, el aumentar la atención hacia los estudiantes por parte del cuerpo de profesores en general

Adaptación de las asignaturas de construcción del departamento de construcciones arquitectónicas II al nuevo concepto de los créditos europeos de educación superior y del campus virtual Atenea

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Adaptación de las asignaturas de construcción del departamento de construcciones arquitectónicas i al nuevo concepto de los créditos europeos de educación superior y del campus virtual atenea

Peer Reviewe

Pulsed light inactivation of mushroom polyphenol oxidase: a fluorometric and spectrophotometric study

Polyphenol oxidase (PPO) is one of the most important food enzymes, it is responsible for the browning of many foods. Pulsed light (PL) is a non-thermal method of food preservation that is able to inactivate PPO. The aim of this work was to gain insight into the mechanism of PPO inactivation by PL. To this, the kinetics of PPO inactivation by PL was measured, together with associated changes in tryptophan fluorescence, KI fluorescence quenching and turbidity; and results were analysed by parameter A and phase diagram methods. Enzyme inactivation followed the Weibull model. Tryptophan fluorescence decreased during PL treatment, as well as the parameter A, while Stern-Volmer constants increased and turbidity was constant. The phase diagram showed only two populated states. There was a high correlation between the loss of activity and parameter A. Results indicate that under the experimental conditions, the inactivation of PPO by PL is an all-or-none process where the enzyme progressively unfolds with no evidence of aggregation.Fundación Universitaria San Antonio de CartagenaCiencias de la Alimentació

Shrinkage of concrete with replacement of aggregate with recycled concrete aggregate

In this paper we present the experimental analysis of samples of concrete where portion of the natural aggregate were replaced with recycled aggregate originating from concrete (RCA). Experimental analysis to obtain the shrinkage properties (basic and dried) of the concrete containing recycled concrete aggregate (CRCA) was performed. The percentages of replacement of natural aggregate with RCA were 0%, 15%, 30%, 60% and 100% with test conditions of 50% RH and 20°C. The results of these trials are compared with reference concrete tests, at an age of 270 days. The results demonstrated an increase in the shrinkage of the CRCA that is proportional to the amount of RCA used as a replacement for the natural aggregate. When compared to the reference concrete, the drying shrinkage showing significant changes; however, their evolution over time is similar to standard concrete.Peer Reviewe

Relationship between gas adsorption and the shrinkage and creep of recycled aggregate concrete

This is a preprint of an article published in Gómez-Soberón,José M.V. Relationship between gas adsorption and the shrinkage and creep of recycled aggregate concrete. "Cement, concrete and aggregates". 2003,25(2), p. 42-48.In this work, it is described an experimental analysis of specimens of recycled concrete (RC) with replacement of natural aggregate with recycled aggregate originating from concrete (RCA). An experimental analysis to obtain the shrinkage and creep properties (basic and by drying) of RC was carried out. The replacement fraction of natural aggregate with RCA were 0%, 15%, 30%, 60% and 100% and the test conditions were 50% RH and 20 °C. The results of these trials were compared with mercury intrusion porosimetry tests (MIP) and gas adsorption (nitrogen), at 90 days. In the results, an increase in the shrinkage and creep properties of the RC with respect to conventional concrete was observed, while porosity values increased. However, the deformation evolution in the time is similar to conventional concrete

Creep of concrete with substitution of normal aggregate by recycled concrete aggregate

This study presents the experimental results on properties of concrete with replacement of natural aggregate by recycled concrete aggregate (RCA). Experimental data on the creep behavior of concrete mixtures (basic and drying creep) was obtained. The replacement factor of natural aggregate by RCA were 0%, 15%, 30%, 60% and 100%, and the test conditions were 50% RH and 20°C. The results of these trials were used to provide a comparison with results of tests on the reference concrete, for ages up to 270 days. The creep coefficient data (instantaneous, basic and drying) presented, along with the maximum strain and the specific creep data. The results reveal considerable increase in creep when is increase replacement of natural aggregate with recycled concrete aggregate. The drying creep, especially shower more significant increase when compared to the reference concrete. KeyPeer Reviewe

Intervención psicológica en dolor oncológico: un estudio de revisión

OBJETIVO: Realización de una revisión de la literatura sobre aspectos psicológicos relacionados con el dolor en pacientes oncológicos, así como de los diferentes modelos de intervención psicológica que han mostrado su efectividad en el tratamiento del dolor. MÉTODO: La revisión bibliográfica se realizó a través de las bases de datos Medline y PsycINFO. RESULTADOS Y CONCLUSIONES: Las variables psicológicas relacionadas con el dolor en pacientes oncológicos se encuentran asociadas tanto a factores de personalidad (neuroticismo, introversión-extraversion, locus de control), como psicosociales (distress psicológico, ansiedad, depresión, apoyo social, estrategias de afrontamiento), siendo la intervención que más apoyo científico ha conseguido por su eficacia respecto al alivio del dolor, la que parte desde una perspectiva cognitivo-conductual, aunque también puede resultar de utilidad la empleada desde modelos psico-educativos y la psicoterapia de apoyo. En cualquier caso, la intervención psicológica debe estar encuadrada en el contexto de un tratamiento multidisciplinar, y debe entenderse como una terapia complementaria que facilita y complementa el efecto positivo de otras terapias más centradas en los aspectos físicos de la enfermedad.OBJECTIVE: To realize a review of the existent literature about the psychological aspects related with cancer pain patients as well as the different psychological intervention models that have showed its efficacy in pain treatment. METHODS: Medline and PsycINFO databases were reviewed. RESULTS AND CONCLUSIONS: The psychological variables related with cancer pain are associated with personality factors (neuroticism, introversion, extraversion) as well as psychosocial factors (psychologicaldistress, anxiety, depression, social support, coping strategies), and the cognitive conductual intervention is the perspective that has obtained the most scientific support due to its efficacy in the pain control, although psychoeducation models and support psychotherapy can be useful too. In any case, the psychological intervention must be framed in the context of a multidisciplinary treatment, and must be understood as a complementary therapy that facility and complement the positive effect of other therapies more centred in physical aspects of the illness

Active learning and autonomous learning: an educational experience

The obtained experience in the active and the autonomous learning tasks execution in the teaching of the subject: Reinforced Concrete Structures and Devices Construction, of the career of Technical Architecture by the Universidad Politécnica de Cataluña (Politechnical University of Catalonia, UPC), is presented. This article gives continuity to the work performed in the scene of educational improvement developed in Barcelona, and framed inside the European Higher Education Area [1, 2, 3, 4, 5]. It intends, therefore, to contribute with the current descriptive tendency in the learning condition applied in this subject.Peer Reviewe