3,665 research outputs found

    Sobre tres derm√©stidos de Les Planes de son i la mata de Val√®ncia (Pirineo de Lleida), nuevos para la fauna de Catalu√Īa (Coleoptera: Dermestidae)

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    Se citen per primera vegada per a Catalunya (nord-est de la pen√≠nsula Ib√®rica) tres esp√®cies de derm√®stids: Paranovelsis incognitus (H√°va, 2003), Megatoma (Megatoma) ruficornis Aub√©, 1866 i Trogoderma glabrum (Herbst, 1783). La citaci√≥ de M. (M.) ruficornis representa, a m√©s, la segona per a la pen√≠nsula Ib√®rica. Els exemplars foren recol¬∑lectats a les Planes de Son i la mata de Val√®ncia (Alt √Äneu, Pirineu de Lleida), en h√†bitat forestal, mitjan√ßant l'√ļs de trampes a√®ries amb atraient. S'aporten dades faun√≠stiques i ecol√≤giques de les tres esp√®cies i s'actualitza la llista de derm√®stids de l'√†rea d'estudi.Three dermestid species are recorded for the first time from Catalonia (northeastern Iberian Peninsula): Paranovelsis incognitus (H√°va, 2003), Megatoma (Megatoma) ruficornis Aub√©, 1866 and Trogoderma glabrum (Herbst, 1783). Record of M. (M.) ruficornis is, moreover, the second one from the Iberian Peninsula. Specimens were collected from Les Planes de Son i la mata de Val√®ncia (Alt √Äneu, Pyrenees of Lleida), in forest habitat, using aerial attractive traps. Faunistic and ecological data are provided, and the list of the Dermestidae of the zone is updated.Se citan por primera vez para Catalu√Īa (nordeste de la Pen√≠nsula Ib√©rica) tres especies de derm√©stidos: Paranovelsis incognitus (H√°va, 2003), Megatoma (Megatoma) ruficornis Aub√©, 1866 y Trogoderma glabrum (Herbst, 1783). La cita de M. (M.) ruficornis representa, adem√°s, la segunda para la Pen√≠nsula Ib√©rica. Los ejemplares fueron recolectados en Les Planes de Son i la mata de Val√®ncia (Alt √Äneu, Pirineo de Lleida), en h√°bitat forestal, mediante trampas a√©reas con atrayente. Se aportan datos faun√≠sticos y ecol√≥gicos de las tres especies y se actualiza la lista de derm√©stidos del √°rea de estudio

    Primers registres d'Attagenus (Attagenus) lobatus Rosenhauer, 1856 (Coleoptera: Dermestidae) per a Catalunya (nord-est de la península Ibèrica)

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    Se cita Attagenus (Attagenus) lobatus Rosenhauer, 1856 per primera vegada a Catalunya. Els espècimens van ser capturats mitjançant mostrejos efectuats en el marc del programa de conservació preventiva del Museu de Ciències Naturals de Barcelona, aplicat a la detecció d'insectes perjudicials per a les col·leccions zoològiques. S'aporten dades fenològiques i alguns comentaris sobre la presència de l'espècie en medi urbà. La seva distribució coneguda a la península Ibèrica s'amplia cap al nord-est.Attagenus (Attagenus) lobatus Rosenhauer, 1856 is recorded for the first time in Catalonia. Specimens were captured by sampling methods as part of the preventive conservation programme of the Museu de Ciències Naturals de Barcelona, intended to detect harmful insects for zoological collections. Phenologycal data and some remarks about the presence of the species in urban environment are provided. Its known distribution in the Iberian Peninsula is enlarged to the northeastern

    La Valoració del dany corporal a l'assegurança de l'automòbil: aplicacions i perspectives de futur

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    At√®s que els accidents de tr√†nsit s√≥n una de les principals causes de mortalitat entre la poblaci√≥ catalana i l'europea, la recerca en l'√†mbit de la valoraci√≥ del dany corporal √©s fonamental per a les companyies asseguradores d'autom√≤bils. √Čs per aix√≤ que l'autor centra l'obra en els dos principals problemes que es generen en les companyies asseguradores: el c√†lcul de reserves i la negociaci√≥ de les quanties.Given that traffic accidents are one of the main causes of mortality among the Catalan and European population, current research on physical injury is fundamental for insurance companies. This is why the author discusses the two main problems arising for insurance companies: calculating reserves and negotiating sums

    Security in online learning assessment towards an effective trustworthiness approach to support e-learning teams

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    (c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.This paper proposes a trustworthiness model for the design of secure learning assessment in on-line collaborative learning groups. Although computer supported collaborative learning has been widely adopted in many educational institutions over the last decade, there exist still drawbacks which limit their potential in collaborative learning activities. Among these limitations, we investigate information security requirements in on-line assessment, (e-assessment), which can be developed in collaborative learning contexts. Despite information security enhancements have been developed in recent years, to the best of our knowledge, integrated and holistic security models have not been completely carried out yet. Even when security advanced methodologies and technologies are deployed in Learning Management Systems, too many types of vulnerabilities still remain opened and unsolved. Therefore, new models such as trustworthiness approaches can overcome these lacks and support e-assessment requirements for e-Learning. To this end, a trustworthiness model is designed in order to conduct the guidelines of a holistic security model for on-line collaborative learning through effective trustworthiness approaches. In addition, since users' trustworthiness analysis involves large amounts of ill-structured data, a parallel processing paradigm is proposed to build relevant information modeling trustworthiness levels for e-Learning.Peer ReviewedPostprint (author's final draft

    Universal Indexes for Highly Repetitive Document Collections

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    Indexing highly repetitive collections has become a relevant problem with the emergence of large repositories of versioned documents, among other applications. These collections may reach huge sizes, but are formed mostly of documents that are near-copies of others. Traditional techniques for indexing these collections fail to properly exploit their regularities in order to reduce space. We introduce new techniques for compressing inverted indexes that exploit this near-copy regularity. They are based on run-length, Lempel-Ziv, or grammar compression of the differential inverted lists, instead of the usual practice of gap-encoding them. We show that, in this highly repetitive setting, our compression methods significantly reduce the space obtained with classical techniques, at the price of moderate slowdowns. Moreover, our best methods are universal, that is, they do not need to know the versioning structure of the collection, nor that a clear versioning structure even exists. We also introduce compressed self-indexes in the comparison. These are designed for general strings (not only natural language texts) and represent the text collection plus the index structure (not an inverted index) in integrated form. We show that these techniques can compress much further, using a small fraction of the space required by our new inverted indexes. Yet, they are orders of magnitude slower.Comment: This research has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie Actions H2020-MSCA-RISE-2015 BIRDS GA No. 69094

    RDF-TR: Exploiting structural redundancies to boost RDF compression

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    The number and volume of semantic data have grown impressively over the last decade, promoting compression as an essential tool for RDF preservation, sharing and management. In contrast to universal compressors, RDF compression techniques are able to detect and exploit specific forms of redundancy in RDF data. Thus, state-of-the-art RDF compressors excel at exploiting syntactic and semantic redundancies, i.e., repetitions in the serialization format and information that can be inferred implicitly. However, little attention has been paid to the existence of structural patterns within the RDF dataset; i.e. structural redundancy. In this paper, we analyze structural regularities in real-world datasets, and show three schema-based sources of redundancies that underpin the schema-relaxed nature of RDF. Then, we propose RDF-Tr (RDF Triples Reorganizer), a preprocessing technique that discovers and removes this kind of redundancy before the RDF dataset is effectively compressed. In particular, RDF-Tr groups subjects that are described by the same predicates, and locally re-codes the objects related to these predicates. Finally, we integrate RDF-Tr with two RDF compressors, HDT and k2-triples. Our experiments show that using RDF-Tr with these compressors improves by up to 2.3 times their original effectiveness, outperforming the most prominent state-of-the-art techniques

    Firsts records of Attagenus (Attagenus) lobatus Rosenhauer, 1856 (Coleoptera: Dermestidae) for Catalonia (northeastern Iberian Peninsula)

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    Se cita Attagenus (Attagenus) lobatus Rosenhauer, 1856 per primera vegada a Catalunya. Els espècimens van ser capturats mitjançant mostrejos efectuats en el marc del programa de conservació preventiva del Museu de Ciències Naturals de Barcelona, aplicat a la detecció d’insectes perjudicials per a les col·leccions zoològiques. S’aporten dades fenològiques i alguns comentaris sobre la presència de l’espècie en medi urbà. La seva distribució coneguda a la península Ibèrica s’amplia cap al nord-est.Attagenus (Attagenus) lobatus Rosenhauer, 1856 is recorded for the first time in Catalonia. Specimens were captured by sampling methods as part of the preventive conservation programme of the Museu de Ciències Naturals de Barcelona, intended to detect harmful insects for zoological collections. Phenologycal data and some remarks about the presence of the species in urban environment are provided. Its known distribution in the Iberian Peninsula is enlarged to the northeastern

    Interacciones entre fármacos de libre venta y de prescripción.

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    Tesis (Qu√≠mico Farmac√©utico)Los medicamentos son una de las herramientas terap√©uticas m√°s utilizadas en la pr√°ctica de la medicina, cuyo uso de manera apropiada permite la obtenci√≥n de importantes beneficios sanitarios representados por la prevenci√≥n, diagn√≥stico, curaci√≥n, atenuaci√≥n y tratamiento de las enfermedades y sus s√≠ntomas. No obstante, su utilizaci√≥n puede llevar a problemas importantes de morbilidad y de mortalidad. Las reacciones adversas son el resultado de una interacci√≥n entre el organismo el medicamento y una serie de factores extr√≠nsecos adicionales. Influyen, por tanto, los factores propios, los ambientales, los ligados al propio enfermo (procesos farmacocin√©ticos, edad, estado patol√≥gico) y las asociaciones entre medicamentos. Estas √ļltimas pueden dar lugar a i'11teracciones farmacol√≥gicas. Las cuales son necesarias conocer, para predecir las probables interacciones y as√≠ advertir a la poblaci√≥n y a los profesionales del √°rea de la salud, sobre los potenciales riesgos. Dado que no existen estudios en farmacia comunitaria sobre las interacciones farmacol√≥gicas potenciales. Se realiz√≥ un estudio observacional, transversal y descriptivo, mediante una encuesta aplicada a 731 clientes-pacientes que frecuentaban los locales de Farmacias Ahumada, de la Provincia de Santiago, con el objetivo de estudiar las posibles interacciones que pudiesen presentarse en la administraci√≥n conjunta de f√°rmacos de prescripci√≥n y de libre venta. De las encuestas realizadas se obtuvo que: el 76,34% de los clientes-pacientes se administra 3 o 4 medicamentos concomitantemente; el consumo promedio fue de 3,92 medicamentos; del total de f√°rmacos el 59,97% corresponde a analg√©sicos, cardiovasculares y antiinfecciosos; las interacciones de severidad mayor corresponden a f√°rmacos analg√©sicos + sistema nervioso central; las interacciones m√°s frecuentes corresponden a f√°rmacos analg√©sicos + cardiovasculares..

    Yabi - yet another business inteligence

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    Mestrado de dupla diploma√ß√£o com a UTFPR - Universidade Tecnol√≥gica Federal do Paran√°In the context of Polytechnical Institute of Bragan√ßa during student registration time, the information technology department is found to be frequently interrupted in order to attend inquiries regarding the information stored in their databases. To mitigate this, Yabi was developed. It is a Web application built with Angular Framework for the user interface and Java with Spring for the functionalities. In general it provides a portal in which the institution‚Äôs employees can access the information found in its databases without the need to have technical knowledge. The developed application is found to attend most of the elicited requirements to be considered useful and offers a foundation for future improvements.No contexto do Instituto Polit√©cnico de Bragan√ßa durante o per√≠odo de matr√≠culas, o departamento de servi√ßos inform√°ticos √© frequentemente interrompido em busca de questionamentos sobre as informa√ß√Ķes contidas nas bases de dados da institui√ß√£o. Para amenizar isso, o Yabi foi desenvolvido. Esta √© uma aplica√ß√£o Web construida com uma interface de usu√°rio feita no Framework Angular e uma aplica√ß√£o remota que implementa as funcionalidades necess√°rias e √© escrita em Java com o framework Spring. De maneira geral ela fornece um portal que possibilita os colaboradoes da institui√ß√£o a ter acesso as informa√ß√Ķes contidas nas bases de dados sem que seja necess√°rio o conhecimento t√©cnico. Por fim, considera-se que a aplica√ß√£o final atende aos requisitos de maneira suficiente para ser considerada √ļtil e ao mesmo tempo fornece uma plataforma para desenvolvimentos futuros
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