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Search Results: 1 - 10 of 327452 matches for " Joan Vallès "
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Dr. Oriol de Bolòs i Capdevila (1924-2007)
Vallès Xirau, Joan
Anales del Jardín Botánico de Madrid , 2007,
Abstract:
Obituari: Miguel de Garganta i Fàbrega (Olot, 1903-1988)
Vallès Xirau, Joan
Collectanea Botanica , 1989,
Abstract:
Dades sobre la biologia d'espècies ibèrico-baleàriques d'Artemisia L.
Vallès Xirau, Joan
Collectanea Botanica , 1989,
Abstract: Not available [ca] S'estudien diversos aspectes de la biologia de les espècies ib èrico-baleàriques d'Artemisia L., fonamentalment de les seccions Artemisia L. i Seriphidium Besser. La germinació de les cipseles, el tipus de cicle biològic, la biologia de la reproducció i la fenologia són els principals termes tractats. [fr] On étude des aspects divers de la biologie des espèces ibéro-baléariques du genre Artemisia L., notamment des sections Artemisia L. et Seriphidium Besser. La germination des cypseles, le type du cycle biologique, la biologie de la reproduction et la phénologie sont les principaux points traités.
Análisis estructural y criterios de dise o de depósitos cilíndricos de hormigón pretensado
Vilardell Vallés, Joan Miquel
Informes de la Construccion , 1995,
Abstract: The present work is based on the structural behaviour of circular prestressed concrete tanks. In this study, an analytical linear elastic model that considers the soil-tank interaction under axisymmetric loads, taking into account the movement capacity of the wall-to-base connection, is developed. Parametric studies are carried out in order to find the effects on the wall of all parameters governing the stiffness of the wall-to-base connection. Different methods to analyse the main forces of a circular prestressed concrete wall with free edge at the top and a generic wall-to-base connection are presented, which generalize some simplified methods conventionally adopted. A procedure for the determination of a circumferential prestressing function is suggested, in order to ensure a suitable residual compressive stress in the circumferential direction when the tank is full. Furthermore, some criteria about the design of the wall-to-base connection are proposed, taking into account both the tank geometry and the prestressing criteria. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos de la Universidad Politécnica de Catalunya El presente trabajo se centra en el estudio del comportamiento estructural de los depósitos cilíndricos de hormigón pretensado. Los objetivos perseguidos son, por una parte, el desarrollo de un modelo de análisis conjunto de la estructura (pared-solera-cimentación) capaz de caracterizar con rigor la rigidez de la unión entre la pared y la solera. Por otra parte, y en base a múltiples estudios paramétricos realizados con un programa desarrollado a partir del mencionado modelo, se presentan diferentes métodos de cálculo de los esfuerzos de la pared, para una unión genérica en la base, que generalizan otros métodos simplificados usuales en la literatura técnica; se proponen funciones de pretensado que definen la distribución y la fuerza de pretensado adecuadas para mantener comprimida circunferencialmente la pared cuando el depósito está solicitado por el empuje hidrostático, con una tensión mínima de compresión circunferencial exigida en proyecto; y, por último, se proponen criterios para definir el tipo de unión más conveniente en la base, en función de la geometría del depósito y de los criterios de dise o del pretensado.
Genome Size Study in the Valerianaceae: First Results and New Hypotheses
Oriane Hidalgo,Jo?l Mathez,Sònia Garcia,Teresa Garnatje,Jaume Pellicer,Joan Vallès
Journal of Botany , 2010, DOI: 10.1155/2010/797246
Abstract: The purpose of this study is to provide a new focus to contribute, from the perspective of genomic evolution, towards a better understanding of the Valerianaceae evolutionary history. Chromosome numbers were determined by Feulgen staining in 24 populations of 18 species (first count for Valerianella multidentata, –16), and DNA contents were assessed by flow cytometry in 74 populations of 35 species (first assessments in all taxa but Centranthus ruber). A molecular phylogeny based on the trnL-trnF and including 41 new sequences was established, with the first DNA sequence for Centranthus nevadensis, Valeriana rotundifolia, V. saxatilis, Valerianella multidentata, and V. turgida. This work is the first large genome size study devoted to the Valerianaceae, showing a range of DNA amounts from ?pg (Valerianella turgida) to ?pg (Valeriana officinalis). At the family level, changes in basic chromosome number and genome size coincide with or precede major shifts in the evolutionary history of the group, such as those concerning stamen number and floral symmetry. 1. Introduction The family Valerianaceae (currently considered within the Caprifoliaceae s.l.; [1]) comprises ca. 400 species of which approximately 200 are included in Valeriana L., the biggest genus of the order Dipsacales. The Valerianaceae are cosmopolitan in their natural distribution, with the exceptions of Australia and the Pacific islands, where they were introduced, and can be nowadays considered as naturalized. Several of their representatives have economic interest as medicinal (e.g., V. officinalis L.), edible (e.g., Valerianella Mill., corn salad or lamb’s lettuce), or ornamental plants (e.g., Centranthus DC.). The family always roused important scientific interest, and its study has broadly benefited from the new molecular techniques, especially the phylogenetic reconstructions. Recent phylogenies based on DNA sequencing [2–7] have considerably modified the traditional classification of the family [8–12]. Molecular results recognize only six genera: Centranthus, Fedia Gaertn., Nardostachys DC., Patrinia Juss., Valeriana (including Aretiastrum DC., Astrephia Dufr., Belonanthus Graebn., Phyllactis Pers., Porteria Hook., and Stangea Graebn.), and Valerianella. Plectritis (Lindl.) DC. is nested amongst South American Valeriana [5, 6]. Moreover, Bell [7] suggested a possible further taxonomic treatment of the family considering Fedia as a synonym of Valerianella. New genera may also be described for some of the Valeriana species that do not group with their congenerics in the phylogenetic
Plant Ethnoveterinary Practices in Two Pyrenean Territories of Catalonia (Iberian Peninsula) and in Two Areas of the Balearic Islands and Comparison with Ethnobotanical Uses in Human Medicine
Esperan a Carrió,Montse Rigat,Teresa Garnatje,Marina Mayans,Montse Parada,Joan Vallès
Evidence-Based Complementary and Alternative Medicine , 2012, DOI: 10.1155/2012/896295
Abstract: This paper presents the results of an ethnobotanical study centred in veterinarian uses in two Catalan Pyrenean regions (Alt Empordà -AE- and High River Ter Valley -AT-, Iberian peninsula) and two Balearic Islands areas (Formentera -FO- and northeastern Mallorca -MA-). In the areas studied, 97 plant species have been claimed to be useful for veterinary purposes. A total of 306 veterinary use reports have been gathered and analysed. The ten most reported plants are Tanacetum parthenium (24 use reports), Parietaria officinalis (15), Ranunculus parnassifolius (14), Meum athamanticum (13), Olea europaea (13), Quercus ilex (12), Ruta chalepensis (12), Sambucus nigra (10) and Thymus vulgaris (10). According to comprehensive reviews, a high number of novelties for plant ethnoveterinary are contributed: 34 species and one subspecies, 11 genera, and three families have not been reported in previous works in this field, and 21 species had only been mentioned once. Several ethnoveterinary uses are coincidental with those in human medicine. Although ethnoveterinary practices are less relevant than in the past in the territories considered, as in all industrialised countries, the knowledge on plant properties and applications is still rich and constitutes a large pool of evidence for phytotherapy, both in domestic animals and humans.
Safety of intramuscular influenza vaccine in patients receiving oral anticoagulation therapy: a single blinded multi-centre randomized controlled clinical trial
Josep Casajuana, Bego?a Iglesias, Mireia Fàbregas, Francesc Fina, Joan-Antoni Vallès, Rosa Aragonès, Mència Benítez, Edurne Zabaleta
BMC Blood Disorders , 2008, DOI: 10.1186/1471-2326-8-1
Abstract: Design: Randomised, controlled, single blinded, multi-centre clinical trial. Setting: 4 primary care practices in Barcelona, Spain. Participants: 229 patients on oral anticoagulation therapy eligible for influenza vaccine during the 2003–2004 season. Interventions: intramuscular administration of influenza vaccine in the experimental group (129 patients) compared to subcutaneous administration in the control group (100 patients). Primary outcome: change in the circumference of the arm at the site of injection at 24 hours. Secondary outcomes: appearance of local reactions and pain at 24 hours and at 10 days; change in INR (International Normalized Ratio) at 24 hours and at 10 days. Analysis was by intention to treat using the 95% confidence intervals of the proportions or mean differences.Baseline variables in the two groups were similar. No major side effects or major haemorrhage during the follow-up period were reported. No significant differences were observed in the primary outcome between the two groups. The appearance of local adverse reactions was more frequent in the subcutaneous administration group (37,4% vs. 17,4%, 95% confidence interval of the difference 8,2% to 31,8%).This study shows that the intramuscular administration route of influenza vaccine in patients on anticoagulant therapy does not have more side effects than the subcutaneous administration route.NCT00137579 at clinicaltrials.govInfluenza vaccines are recommended for administration by the intramuscular route [1]. These recommendations are based on similar immunogenicity but less reactogenity if administered intramuscularly than subcutaneously or intradermally [2,3].However, many physicians use the subcutaneous route for patients receiving an oral anticoagulant therapy because this route is thought to induce fewer hemorrhagic side effects, although no clinical trials support this recommendation. The number of people receiving oral anticoagulant therapy has increased over the past years as a r
Continuity and Rupture in the Growth of Cultures
Jaume Botey Vallès
Revista CIDOB d'Afers Internacionals , 1997,
Abstract: The first part of the article deals with the classical concepts of identity, diversity and pluralism in relation to present societies in conflict. The second part addresses specifically the case of the Andalusian immigration to Catalonia from 1955 to 1975 and the hardening relations and tensions between the two communities in present-day Catalonia. Finally, in the presence of economic globalization and the bolstered emergence of new identities, some of which have religious aspects as significant components, a proposition is put forth to find common ground in the new social movements and religious faith as two arenas of intercultural negotiation.
Representaciones y creencias en torno a la evaluación lingüística del adulto mayor con trastorno cognitivo leve
Beatriz Vallés
Revista de Investigación en Logopedia , 2011,
Abstract: Debido a los cambios demográficos que experimenta la población mundial cada día es más frecuente que los equipos de atención en el área de la logopedia deban atender adultos mayores con trastorno cognitivo leve (TCL), es decir, personas que presentan problemas en su memoria y otras funciones mentales, sin que los mismos interfieran con el desarrollo de sus actividades cotidianas (Speling et. al., 2011). Esta situación obliga a desarrollar acciones desde una nueva perspectiva epistemológica, ontológica y metodológica, especialmente en países en vías de desarrollo donde las personas mayores de 65 a os se pueden enfrentar al aislamiento y la falta de servicios de salud pública, producto de una serie de representaciones negativas en torno al envejecimiento que atentan sobre su calidad de vida y determinan que los programas de formación profesional del logopeda deban abordar temas relacionados con el envejecimiento como proceso complejo y multifactorial. El objetivo de este trabajo es analizar las representaciones sociales que deban ser consideradas a la hora de elaborar una propuesta de evaluación lingüística dirigida al adulto mayor con TCL desde una perspectiva discursiva que permita el estudio del componente pragmático. Se plantea como alternativa el uso del análisis de la conversación entre pacientes e interlocutores claves como herramienta diagnóstica y la incorporación a los programas de formación profesional en Logopedia de contenidos sobre Psiquiatría, Lingüística Clínica, Geriatría y Gerontología a fin de alcanzar una práctica ajustada a los complejos marcos sociales donde se desarrolla actualmente la práctica logopédica en países en desarrollo.
Rese a de "La frontera interior. El lugar de la nación en la teoría de la democracia y el federalismo" de R. Máiz
Josep M. Vallés
Araucaria , 2009,
Abstract:
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