Educar en el 2000 : revista de formación del profesorado

El artículo forma parte de un monográfico sobre matemáticasEl autor del artículo pone de manifiesto las fases que han de tenerse en cuenta a la hora de hacer uso de los materiales o recursos didácticos aplicables en los niveles de Primaria en el área de matemáticas. Atendiendo a estas fases se comentan tres materiales de gran utilidad y fácil desarrollo para la adquisición de conceptos numéricos, de medida y geométricos.MurciaES

Uncertainy’s indices assessment for calibrated energy models

Building Energy Models (BEMs) are a key element of the Energy Performance of Buildings Directive (EPBD), and they are at the basis of Energy Performance Certificates (EPCs). The main goal of BEMs is to provide information for building stakeholders; they can be a powerful market tool to increase demand for energy efficiency solutions in buildings without affecting the comfort of users, as well as providing other benefits. The next generation of BEMs should value buildings in a holistic and cost-effective manner across several complementary dimensions: envelope performances, system performances, and controlling the ability of buildings to offer flexible services to the grid by optimizing energy consumption, distributed generation, and storage. SABINA is a European project that aims to look for flexibility to the grid, targeting the most economic source possible: existing thermal inertia in buildings. In doing so, SABINA works with a new generation of BEMs that tend to mimic the thermal behavior of real buildings and therefore requires an accurate methodology to choose the model that complies with the requirements of the system. This paper details our novel extensive research on which statistical indices should be chosen in order to identify the best model offered by the calibration process developed by Fernandez et al. in a previous paper and therefore is a continuation of that work

Uncertainy’s Indices Assessment for Calibrated Energy Models

Building Energy Models (BEMs) are a key element of the Energy Performance of Buildings Directive (EPBD), and they are at the basis of Energy Performance Certificates (EPCs). The main goal of BEMs is to provide information for building stakeholders; they can be a powerful market tool to increase demand for energy efficiency solutions in buildings without affecting the comfort of users, as well as providing other benefits. The next generation of BEMs should value buildings in a holistic and cost-effective manner across several complementary dimensions: envelope performances, system performances, and controlling the ability of buildings to offer flexible services to the grid by optimizing energy consumption, distributed generation, and storage. SABINA is a European project that aims to look for flexibility to the grid, targeting the most economic source possible: existing thermal inertia in buildings. In doing so, SABINA works with a new generation of BEMs that tend to mimic the thermal behavior of real buildings and therefore requires an accurate methodology to choose the model that complies with the requirements of the system. This paper details our novel extensive research on which statistical indices should be chosen in order to identify the best model offered by the calibration process developed by Fernandez et al. in a previous paper and therefore is a continuation of that work

Sambori : Matemáticas. Tercer ciclo

Unidad didáctica destinada al alumnado de Matemáticas del tercer ciclo de Educación Primaria. Las actividades y experiencias propuestas giran en torno a los siguientes temas: taller de cálculo: calculadora; actividades de cálculo con fichas; fracciones, decimales y porcentajes; taller de construcción; taller de geometría: espejos, polígonos y mosaicos; encuestas; actividades de recuento y azar y probabilidad.ValenciaBiblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 planta; 28014 Madrid; Tel. +34917748000; [email protected]

Sambori : unitats de Matemàtiques per al segon cicle d'Educació Primària

Este trabajo se presenta estructurado en dos volúmenes: una guía didáctica, para el profesorado, y un cuaderno de trabajo, para el alumnadoLa presente unidad didáctica sobre cálculo y operaciones se organiza en cuatro bloques: 1.Estudio de modelos para comprender el valor del operador multiplicativo, como uno de los ejes principales del trabajo de numeración en la enseñanza primaria. 2.Profundización en el sistema de numeración decimal y su carácter aditivo-multiplicativo, a través de juegos numéricos. 3.Actividades encaminadas al estudio y comprensión de los algoritmos de las operaciones elementales (suma, resta, multiplicación y división). 4.Actividades que favorecen el cálculo mental. El objetivo básico que guía la realización de estas actividades es el de obtener un conocimiento más profundo del sistema de numeración decimal a partir de estrategias de manipulación numérica ligadas a la resolución de situaciones problemáticas usuales en la vida cotidiana.ValenciaBiblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 planta; 28014 Madrid; Tel. +34917748000; [email protected]

Uncertainy’s indices assessment for calibrated energy models

Building Energy Models (BEMs) are a key element of the Energy Performance of Buildings Directive (EPBD), and they are at the basis of Energy Performance Certificates (EPCs). The main goal of BEMs is to provide information for building stakeholders; they can be a powerful market tool to increase demand for energy efficiency solutions in buildings without affecting the comfort of users, as well as providing other benefits. The next generation of BEMs should value buildings in a holistic and cost-effective manner across several complementary dimensions: envelope performances, system performances, and controlling the ability of buildings to offer flexible services to the grid by optimizing energy consumption, distributed generation, and storage. SABINA is a European project that aims to look for flexibility to the grid, targeting the most economic source possible: existing thermal inertia in buildings. In doing so, SABINA works with a new generation of BEMs that tend to mimic the thermal behavior of real buildings and therefore requires an accurate methodology to choose the model that complies with the requirements of the system. This paper details our novel extensive research on which statistical indices should be chosen in order to identify the best model offered by the calibration process developed by Fernandez et al. in a previous paper and therefore is a continuation of that work

Innovación educativa en la universidad : mejora de la calidad de la educación y desarrollo profesional docente

Determinar y concretar los medios y recursos necesarios para que el profesorado universitario desarrolle procesos de mejora y perfeccionamiento en cuestiones docentes; comprender los procesos de innovación educativa, que permita un análisis de los elementos principales que favorecen la autoformación, interformación y,-o ecoformación del profesorado; delimitar y estudiar las competencias instruccionales que pueden favorecer los procesos de innovación; comprender y analizar la competencias de evaluación; reunir elementos que permitan una reflexión crítica sobre diversas cuestiones relativas a la profesionalidad. Planteamiento de hipótesis. Dos muestras. Por un lado, 112 profesores por muestreo aleatorio sistemático, de la Universidad de Málaga, 38 experiencias de innovación y 17 coordinadores de proyectos de innovación. Para el segundo diseño se seleccionaron 5 experiencias de innovación. Se planteó un diseño descriptivo (A) y un diseño multicaso de estudio de casos. Las variables implicadas en el diseño A fueron: competencias instruccionales, competencias de evaluación y profesionalidad. En el diseño B fueron: concepciones curriculares, condiciones que facilitan el cambio y aportaciones y exigencias que la innovación implica a cada profesor participante en una innovación. Las técnicas de recogida de datos en B fueron el diario de campo, la fotografía de escenarios relevantes, la aplicación de cuestionarios abiertos,etc. Para analizar los datos obtenidos en el diseño A, se realizaron análisis de frecuencias y porcentajes, tablas de contingencia. En el diseño B se aplicó un análisis cualitativo. Se presentan los resultados de los análisis estádístico y cualitativo. En cuanto al diseño A, las conclusiones indican que la Universidad de Málaga tiene un profesorado con poca experiencia, destacando un número elevado de diferencias de percepción entre los profesores que participan en experiencias o proyectos de innovación y los que no. Respecto al diseño B, las conclusiones se distinguen en dos niveles: uno metodológico y otro de contenido sustantivo. Finalmente, queda de manifiesto la figura del profesor innovador, quedando patente la conveniencia de que la innovación y la educación superior vayan siempre unidas.Ministerio Educación CIDEBiblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 Planta; 28014 Madrid; Tel. +34917748000; Fax +34917748026; [email protected]

The Metagenomic Composition and Effects of Fecal-Microbe-Derived Extracellular Vesicles on Intestinal Permeability Depend on the Patient's Disease.

peer reviewedThe composition and impact of fecal-microbe-derived extracellular vesicles (EVs) present in different diseases has not been analyzed. We determined the metagenomic profiling of feces and fecal-microbe-derived EVs from healthy subjects and patients with different diseases (diarrhea, morbid obesity and Crohn's disease (CD)) and the effect of these fecal EVs on the cellular permeability of Caco-2 cells. The control group presented higher proportions of Pseudomonas and Rikenellaceae_RC9_gut_group and lower proportions of Phascolarctobacterium, Veillonella and Veillonellaceae_ge in EVs when compared with the feces from which these EVs were isolated. In contrast, there were significant differences in 20 genera between the feces and EV compositions in the disease groups. Bacteroidales and Pseudomonas were increased, and Faecalibacterium, Ruminococcus, Clostridium and Subdoligranum were decreased in EVs from control patients compared with the other three groups of patients. Tyzzerella, Verrucomicrobiaceae, Candidatus_Paracaedibacter and Akkermansia were increased in EVs from the CD group compared with the morbid obesity and diarrhea groups. Fecal EVs from the morbid obesity, CD and, mainly, diarrhea induced a significant increase in the permeability of Caco-2 cells. In conclusion, the metagenomic composition of fecal-microbe-derived EVs changes depending on the disease of the patients. The modification of the permeability of Caco-2 cells produced by fecal EVs depends on the disease of the patients

Endozoochory by beetles: a novel seed dispersal mechanism

† Background and Aims Due in part to biophysical sized-related constraints, insects unlike vertebrates are seldom expected to act as primary seed dispersers via ingestion of fruits and seeds (endozoochory). The Mediterranean parasitic plant Cytinus hypocistis, however, possesses some characteristics that may facilitate endozoochory by beetles. By combining a long-term field study with experimental manipulation, we tested whether C. hypocistis seeds are endozoochorously dispersed by beetles. † Methods Field studies were carried out over 4 years on six populations in southern Spain. We recorded the rate of natural fruit consumption by beetles, the extent of beetle movement, beetle behaviour and the relative impor- tance of C. hypocistis fruits in beetle diet. † Key Results The tenebrionid beetle Pimelia costata was an important disperser of C. hypocistis seeds, consum- ing up to 17.5 % of fruits per population. Forty-six per cent of beetles captured in the field consumed C. hypocistis fruits, with up to 31 seeds found in individual beetle frass. An assessment of seeds following passage through the gut of beetles indicated that seeds remained intact and viable and that the proportion of viable seeds from beetle frass was not significantly different from that of seeds collected directly from fruits. † Conclusions A novel plant – animal interaction is revealed; endozoochory by beetles may facilitate the dispersal of viable seeds after passage through the gut away from the parent plant to potentially favourable underground sites offering a high probability of germination and establishment success. Such an ecological role has until now been attributed only to vertebrates. Future studies should consider more widely the putative role of fruit and seed ingestion by invertebrates as a dispersal mechanism, particularly for those plant species that possess small seeds.Peer reviewe