2,769 research outputs found

    Valor taxonómico de la morfología de las semillas en las especies del género "Erica" presentes en el NO de España

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    Se estudia la morfología de las semillas en 1as 10 especies de1 género Erica que e forma espontánea se desarrollan en Galicia (N.O. de España). Para su observación, encaminada a comprobar el valor taxonómico de los caracteres morfológicos seminales, se han utiliado microscopio óptico y electrónico de barrido.El resultado de este estudio es el reconocimiento de diferencias dentro del género. e incluye además una clave para las especies estudiadas, basada en la morfología de las semillas.The seed morphology of 10 species of the genus Erica L. from Galicia (NW of Spain) gas studied, utilizing the optical microscope and scanning electron microscope, to determine the significance of seed coat features as taxonomic characters.The result of this study was the reconigtion of differences in seed morphology within the genus. A key to galician taxa of Erica based on seed morphology is included

    Evolución del sistema deltaico del Río Tordera (NE de la Península Ibérica): secuencias sedimentarias y correlación mar adentro

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    The Tordera River Delta is made up of coarse sand bodies which were formed during the last sea level rise. Marine and land seismic profiles and wells show three depositional Holocene sequences corresponding to a) the transgressive base level, b) the progradant intermediate unit and c) the progradant unit which onlaps the Plio-Pleistocene sequence seawards and the granitic basement on the present delta plain and northern coast. The morphology of the sedimentary bodies, isobath maps and marine geophysical data enabled us to gain fresh insights into the evolution of the delta and its prodelta and into the various relict sand bodies on the inner shelf. The evolution of the coastline can be followed during the prograding process of the lower units from the successive coastal and internal lagoons. These coastal lagoons were conditioned by river changes and basement morphology. Once the sea level maximum was attained, the prograding units covered these morphologies, resulting in the present delta configuration.El Delta del Río Tordera está formado por cuerpos de arena gruesa depositados durante el último ascenso del nivel del mar. Los perfiles sísmicos marinos y terrestres muestran tres secuencias deposicionales holocenas correspondientes a: a) el nivel de base transgresivo, b) la secuencia intermedia progradante y c) la secuencia que prograda hacia mar sobre el substrato plio-pleistoceno y el zócalo granítico en la llanura deltaica. La morfología de los cuerpos sedimentarios, la cartografía en isobatas y los datos geofísicos submarinos nos ofrecen nueva información sobre la evolución del delta, prodelta y de los diferentes cuerpos relictos de arena de la plataforma interna. La evolución de la línea de costa puede ser seguida a lo largo del proceso progradante de las secuencias anteriores a partir de la sucesión de lagunas costeras e internas. La presencia de estas lagunas estaba condicionada por los sucesivos cambios fluviales y la morfología del substrato. Una vez alcanzado el máximo eustático, las unidades superiores progradantes recubren estas morfologías dando lugar a la actual morfología deltaica

    Relationship between vegetative cells and cyst production during Alexandrium minutum bloom in Arenys de Mar harbour (NW Mediterranean)

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    A recurrent Alexandrium minutum bloom in the Arenys de Mar harbour (Catalan coast, North Western Mediterranean) was monitored in order to establish the relationship between vegetative cells and cyst production. The bloom lasted from January 21 to February 24, 2002 and reached cell concentrations of up to 47 x106 cell L-1. Two aspects related to the resting cysts deposition were studied: (i) production of resting cysts during the bloom period (by means of sediment traps) and (ii) distribution of resting cysts in the sediment after the bloom (May 2002). Cyst formation in Arenys clearly started in a period with high vegetative cell densities in the water column. Once production was initiated encystment fluxes remained constant for two weeks, and covering the periods of maintenance and decline of the bloom. High cyst fluxes (up to 6000 cysts cm-2 day-1) were quantified as a result of the high vegetative cell concentration. Moreover, encystment occurring in less than 1% of the total population indicates that most of the cells are not involved in resting cysts formation. A comparison of the resting cyst flux values obtained from the sediment traps and the resting cyst concentrations in surface sediment (628–3270 cysts cm-3) three months later, revealed that the number of cysts in the sediment decreased during that time. The studies of excystment showed a high germination percentage (91%) and germling viability (100%). These data, together with the resting cyst distribution in the sediment, are important in assessing the role of resting cysts in the bloom dynamics of A. minutum in confined waters.Postprin

    Triângulo Jota- uma série fora de série

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    No branco do sul as cores dos livros: encontro sobre literatura para crianças e jovens: atas, Beja (Portugal), organização da Escola Superior de Educação. Instituto Politécnico de Beja, 2005/06

    A obra narrativa de Luísa Ducla Soares

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    No branco do sul as cores dos livros: encontro sobre literatura para crianças e jovens: atas, Beja (Portugal), organização da Escola Superior de Educação. Instituto Politécnico de Beja, 2001/02

    Internal preference mapping of milk–fruit beverages: Influence of color and appearance on its acceptability

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    The individual preferences of 100 consumers between 20 and 30 years old for the color of 16 milk–fruit juice beverages (MFJB) were investigated by preference mapping technique. Consumers were asked to evaluate, just by looking at the samples, how much they liked them (from “Extremely dislike” to “Extremely like”). The color of the samples was analyzed by two different instrumental techniques. Results obtained from the instrumental color measurement showed the wide diversity in hues of the beverages available in the market, and correlations between techniques proved that both of them were appropriate to analyze color. Results showed that participants preferred samples with orangish appearance instead of those with a whiter look. Anyway, punctuations given by the consumers suggest that generally, color of these products is not highly evaluated by consumers, as the best mean punctuation was 6.6.Consejería de Innovación Ciencia y Empresa, Junta de Andalucía P11-AGR-778

    Geometric constraint graphs decomposition based on computing graph circuits

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    Geometric constraint solving is a growing field which plays a paramount role in industrial applications and that is deeply rooted in automated deduction in geometry. In this work we report on an algorithm to solve geometric constraint-based problems by decomposing biconnected graphs. The algorithm is based on recursively splitting the graph through sets with three vertices located on fundamental circuits of the graph. Preliminary practical experiments suggest that the algorithm runtime is at worst quadratic with the total number of vertices in the graph.Postprint (published version

    A fisioterapia no equilíbrio de crianças e adolescentes com paralisia cerebral espástica: revisão bibliográfica

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    Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciada em FisioterapiaObjetivo: Encontrar estudos que apurassem as diferentes técnicas de fisioterapia para melhoria do equilíbrio de crianças e adolescentes com Paralisia Cerebral Espástica (PCE). Metodologia: A pesquisa foi realizada nas bases de dados PubMed, PEDro e CINAHL Plus, incluindo artigos randomizados controlados, com limite temporal de 10 anos, realizados em humanos e em indivíduos com PCE, cuja amostra fosse composta por indivíduos com idades inferiores a 18 anos, artigos de livre acesso, com texto disponível na íntegra, e em que fossem usadas técnicas de fisioterapia para promover melhoria no equilíbrio de crianças e adolescentes com PCE. Resultados: 669 artigos foram encontrados, dos quais 6 foram incluídos na presente revisão. Conclusão: É possível verificar que, tanto a Realidade Virtual (RV), como a Whole Body- Vibration (WBV), Task-Oriented Activities based on Neurodevelopmental Therapy (TOANDT) e o treino de marcha para trás mostram ser boas técnicas de fisioterapia para melhoria do equilíbrio de crianças e adolescentes com PCE.Objective: To find studies that investigated the different physiotherapy techniques to improve the balance of children and adolescents with Spastic Cerebral Palsy (SCP). Metodology: The research was carried out in the databases PubMed, PEDro e CINAHL Plus, including randomized controlled articles, with a time limit of 10 years, carried out in humans and in individuals with SCP, whose sample was composed of individuals under the age of 18 years, free access articles, with full text available, and in which physiotherapy techniques were used to promote improvement in the balance of children and adolescents with SCP. Results: 669 articles were found, of which 6 were included in this review. Conclusion: It is possible to verify that both Virtual Reality (VR), as well as Whole Body-Vibration (WBV), Task-Oriented Activities based on Neurodevelopmental Therapy (TOA-NDT) and backward training show good physiotherapy techniques to improve the balance of children and adolescents with SCP.N/

    Prensa y salud : organización de un Boletín Escolar

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    La autora de este trabajo profundiza en el tratamiento de la prensa como nexo integrador del programa trimestral que ha desarrollado para el área de Educación Física desde la perspectiva del tema transversal de la Educación para la Salud. A partir de la experiencia realizada en un centro de Primaria, analiza la consideración de la prensa en este marco curricular para, a continuación, realizar una propuesta práctica sobre cómo confeccionar un Boletín Escolar a partir de la creación de un Taller y un Comité de Salud.The author of this paper deepens in the treatment of press as an integrating link of the quarterly basis program that she has developed for the area of Physical Education from the perspective of the transversal topic of Education for Health. Drawing from the experience carried out in a Primary Education centre, the author analyses the consideration of using press in this curricular framework to, then, lay out a practical proposal about how to compile a School Bulletin based on the creation of a Workshop and a Health Committee

    Estructura interna del Factor Structure of the Symptom Assessment-45 Questionnaire (SA-45)

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    We describe the internal structure of the Symptom Assessment-45 Questionnaire (SA-45; Davison et al., 1997) in a sample of non-clinical Spanish subjects. The scale was developed for treatment outcome assessment in psychiatric settings; however, many studies have examined its psychometric properties in non-clinical populations. The internal structure of these studies usually replicates the dimensionality proposed in the original study closely. In this work, the scale was administered to a sample of 823 participants. In order to analyse the dimensionality of the instrument in a non-clinical population, exploratory and confirmatory factor analyses using polychoric correlations were carried out. The results obtained, are similar to those obtained for the original model and replicated in later studies, but there are important nuances that should be taken into account in defining a measurement model for the sample used. These data confirm the need for further research in a non-clinical population. ResumenSe describe la estructura interna del Symptom Assess­ment-45 Questionnaire (SA-45; Davison et al., 1997) en una muestra española no clínica. La escala, fue desarro­llada para la evaluación de los tratamientos en entornos psiquiátricos. Sin embargo, muchos estudios han exami­nado sus propiedades psicométricas en población no clí­nica. La estructura interna en estos estudios, usualmente replica la dimensionalidad propuesta en el estudio origi­nal. En este trabajo, la escala fue administrada a una mues­tra de 823 participantes. Para analizar su dimensionalidad en población no clínica, se usó Análisis Factorial Explora­torio y Confirmatorio factorizando la matriz de correlacio­nes policóricas. Los resultados obtenidos, son similares a los del modelo original y replicados en algunos estudios, sin embargo, hay importantes matices que deben ser teni­dos en cuenta para definir el modelo en la muestra usada. Los resultados, confirman la necesidad de más investiga­ción en población no clínica.AbstractWe describe the internal structure of the Symptom Assessment-45 Questionnaire (SA-45; Davison et al., 1997) in a sample of non-clinical Spanish subjects. The scale was developed for treatment outcome assessment in psychiatric settings; however, many studies have examined its psychometric properties in non-clinical populations. The internal structure of these studies usually replicates the dimensionality proposed in the original study closely. In this work, the scale was administered to a sample of 823 participants. In order to analyse the dimensionality of the instrument in a non-clinical population, exploratory and confirmatory factor analyses using polychoric correlations were carried out. The results obtained, are similar to those obtained for the original model and replicated in later studies, but there are important nuances that should be taken into account in defining a measurement model for the sample used. These data confirm the need for further research in a non-clinical population.
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