117 resultados para context processing


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Taking the Royal College of Barcelona (1760 -1843) as a case study this paper shows the development of modern surgery in Spain initiated by Bourbon Monarchy founding new kinds of institutions through their academic activities of spreading scientific knowledge. Antoni Gimbernat was the most famousinternationally recognised Spanish surgeon. He was trained as a surgeon at the Royal College of Surgery in Cadiz and was later appointed as professor of theAnatomy in the College of Barcelona. He then became Royal Surgeon of King Carlos IV and with that esteemed position in Madrid he worked resiliently to improve the quality of the Royal colleges in Spain. Learning human bodystructure by performing hands-on dissections in the anatomical theatre has become a fundamental element of modern medical education. Gimbernat favoured the study of natural sciences, the new chemistry of Lavoisier and experimental physics in the academic programs of surgery. According to the study of a very relevant set of documents preserved in the library, the so-called “juntas literarias”, among the main subjects debated in the clinical sessions was the concept of human beings and diseases in relation to the development of the new experimental sciences. These documents showed that chemistry andexperimental physics were considered crucial tools to understand the unexplained processes that occurred in the diseased and healthy human bodyand in a medico-surgical context. It is important to stress that through these manuscripts we can examine the role and the reception of the new sciences applied to healing arts.

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La carencia de unmodelo bien definido de representaciónde la informaciónen la web ha traído consigoproblemas de cara a diversosaspectos relacionados con suprocesamiento. Para intentarsolucionarlos, el W3C, organismoencargado de guiar la evoluciónde la web, ha propuestosu transformación hacia unanueva web denominada websemántica. En este trabajo sepresentan las posibilidades queofrece este nuevo escenario, asícomo las dificultades para suconsecución, prestando especialatención a las ontologías,herramientas de representacióndel conocimiento fundamentalespara la web semántica. Porúltimo, se analiza el papel delprofesional de la biblioteconomíay documentación en estenuevo entorno.

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The emergence of the Web 2.0 technologies in the last years havechanged the way people interact with knowledge. Services for cooperation andcollaboration have placed the user in the centre of a new knowledge buildingspace. The development of new second generation learning environments canbenefit from the potential of these Web 2.0 services when applied to aneducational context. We propose a methodology for designing learningenvironments that relates Web 2.0 services with the functional requirements ofthese environments. In particular, we concentrate on the design of the KRSMsystem to discuss the components of this methodology and its application.

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The increasing volume of data describing humandisease processes and the growing complexity of understanding, managing, and sharing such data presents a huge challenge for clinicians and medical researchers. This paper presents the@neurIST system, which provides an infrastructure for biomedical research while aiding clinical care, by bringing together heterogeneous data and complex processing and computing services. Although @neurIST targets the investigation and treatment of cerebral aneurysms, the system’s architecture is generic enough that it could be adapted to the treatment of other diseases.Innovations in @neurIST include confining the patient data pertaining to aneurysms inside a single environment that offers cliniciansthe tools to analyze and interpret patient data and make use of knowledge-based guidance in planning their treatment. Medicalresearchers gain access to a critical mass of aneurysm related data due to the system’s ability to federate distributed informationsources. A semantically mediated grid infrastructure ensures that both clinicians and researchers are able to seamlessly access andwork on data that is distributed across multiple sites in a secure way in addition to providing computing resources on demand forperforming computationally intensive simulations for treatment planning and research.

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En aquesta proposta didàctica s'ofereixen algunes estratègies de treball per abordar el tema de l'aprenentatge de terminologia especialitzada a l'últim cicle de l'educació primària. La idea de què es parteix per fer una proposta d'aquesta mena és que la terminologia té un paper fonamental en el procés de coneixement i definició del món que ens envolta; per això es proposen unes activitats sobre el reconeixement dels conceptes i les seves relacions com un mitjà per construir el coneixement. L'article s'estructura en uns continguts teòrics adreçats al professorat i en unes activitats per als estudiants, preparades amb l'objectiu de treballar la terminologia en context.

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L’Escola Superior Politècnica (ESUP) de la Universitat Pompeu Fabra, amb el suport del Consell Social va iniciar el curs 2009-2010 un Pla de Mentors (EnginyCat) adreçat als estudiants de primer curs dels Graus TIC. Aquesta és una iniciativa del Departament d’Innovació, Universitats i Empreses de la Generalitat de Catalunya i la seva missió és aproximar l’Enginyeria -el coneixement científic i tecnològic- als joves catalans. Els objectius de l’ESUP amb aquest programa són: donar suport motivacional als nouvinguts, orientar-los durant el desenvolupament de tasques acadèmic-formatives iatendre qüestions més quotidianes. Les avaluacions realitzades fins al moment reflecteixen un notable grau de satisfacció dels estudiants.

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The spectral efficiency achievable with joint processing of pilot and data symbol observations is compared with that achievable through the conventional (separate) approach of first estimating the channel on the basis of the pilot symbols alone, and subsequently detecting the datasymbols. Studied on the basis of a mutual information lower bound, joint processing is found to provide a non-negligible advantage relative to separate processing, particularly for fast fading. It is shown that, regardless of the fading rate, only a very small number of pilot symbols (at most one per transmit antenna and per channel coherence interval) shouldbe transmitted if joint processing is allowed.

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This paper presents several algorithms for joint estimation of the target number and state in a time-varying scenario. Building on the results presented in [1], which considers estimation of the target number only, we assume that not only the target number, but also their state evolution must be estimated. In this context, we extend to this new scenario the Rao-Blackwellization procedure of [1] to compute Bayes recursions, thus defining reduced-complexity solutions for the multi-target set estimator. A performance assessmentis finally given both in terms of Circular Position Error Probability - aimed at evaluating the accuracy of the estimated track - and in terms of Cardinality Error Probability, aimed at evaluating the reliability of the target number estimates.

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The current research compares the perception of over-education in four different European countries, resorting to European Household Panel Data. The results confirm that the type of educational system accounts for some of the cross-national differences in self-perceived over-education. In qualificational spaces, like Denmark, where vocational training receives more importance, self-perceived over-education is not associated as much with educational attainment as in the so-called’ organisational spaces’, like Spain, France and Italy. Yet, the results confirm that, controlling for the system of education, the traits and regulation of the labour market also have an effect on over-education. Thus, in Spain, where temporary employment has soared in recent decades, this type of contract is clearly associated with the perception of over-education, to a much higher extent than in Italy or France. Temporary contracts in Spain may not work as a steppig stone for attaining a job suitable to the training received by the individual, as they may in the case of France or Italy. In sum, not only institutions offering skills and human capital, but labour market regulation as well, have a clear impact on the incidence of over-education.

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Contact theory and threat group theory offer contradictory hypotheses regarding the effect of contact with immigrants. Despite recent efforts to test the validity of both approaches, we still lack a definitive conclusion. This article integrates both approaches and tests the effect of contact towards immigrants and how this changes when different contexts are considered. Mainly, we investigate the effect of the economic environment and the immigrant group size on modifying attitudes toward immigration. The hypotheses, which are tested in Catalonia, show that contact with immigrants reduce negative attitudes towards immigration, especially friendship and family contact. However, mixed results are reported regarding the effect of economic environment and immigrant group size. Whereas the former modifies positively the effect of workplace contact, the latter has no effect. Findings have implications for the impact of context when dealing with the impact of contact on attitudes towards immigration.

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Els pronoms clítics representen una de les idiosincràsies més singulars de la llengua catalana, tant pel seu polimorfisme com per les funcions sintàctiques i discursives que poden exercir en una oració. L’interès principal del nostre estudi és que, tot i les semblances dels sistemes pronominals inherents a les llengües romàniques, unes diferències fonamentals les separen tenint en compte els pronoms clítics: és el cas del català i del portuguès. Per aquest motiu, ens hem proposat d’observar l’adquisició dels pronoms clítics catalans per part d’alumnes que tenen com a primera llengua el portuguès i el català com a segona. Els pronoms objecte d’estudi han estat, d’una banda, els d’acusatiu i de datiu: tot i que són semblants en català i en portuguès pel que fa a la forma, ocupen posicions respecte del verb oposades. D’altra banda, els pronoms catalans en i hi no tenen equivalents en portuguès i, per tant, és rellevant observar-ne l’ús en lusoparlants, sobretot en contextos en què apareixen com a pronom de represa d’un element dislocat.

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"Traducció jurídicoeconòmica d'una fragment del Tractat pel qual s'estableix una Constitució per a Europa, amb el propòsit d'establir una sèrie de directrius sòlides per a la traducció al català en el context de la Unió Europea, tot seguint les indicacions dels organismes catalans competents."

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Finançament del Nou Hospital Universitari de Son Dureta: Col·laboració público-privadaes un treball de recerca que tracta sobre la financiació d’un hospital respecte a la sevaconstrucció i la posterior explotació.En aquest treball podem trobar dos parts ben diferenciades: la part teòrica i la part practica.En la primera part del treball analitzem com és un contracte de col·laboració públicoprivada(CPP), per després identificar els principals axiomes d’aquests tipus de contractesen el contracte de CPP que s’ha realitzat per la financiació del Nou Hospital de Son Dureta.En la segona part, analitzem la col·laboració publico- privada que s’ha realitzat en aquesthospital concret. S’ha analitzat des de un punt de vista econòmic, polític i social.També s’ha fet una comparació de la col·laboració público-privada envers la col·laboraciótradicional. Les conclusions de la comparació son des de el punt de vista de l’administració,el sector privat i dels usuaris.És realment més eficient, econòmicament parlant, la col·laboració público-privada que lacol·laboració tradicional?La CPP és un recurs que utilitza l’estat per tal de disminuir el deute i sanejar els seuscomptes?Realment es guanya amb qualitat per l’entrada del sector privat en temes d’administraciópública?Qui és el principal beneficiat per la realització d’aquest tipus de col·laboració (sectorpúblic, sector privat, usuaris)?Aquestes són algunes de les hipòtesi que hem intentat anar responent al llarg del treball.

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This paper studies the determinants of school choice, focusing on the role of information. Weconsider how parents' search efforts and their capacity to process information (i.e., tocorrectly assess schools) affect the quality of the schools they choose for their children. Usinga novel dataset, we are able to identify parents' awareness of schools in their neighborhoodand measure their capacity to rank the quality of the school with respect to the officialrankings. We find that parents education and wealth are important factors in determiningtheir level of school awareness and information gathering. Moreover, these search effortshave important consequences in terms of the quality of school choice.

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Intonation is a fundamental music concept that has a special relevance in Indian art music. It is characteristic of the rāga and intrinsic to the musical expression of the performer. Describing intonation is of importance to several information retrieval tasks like the development of rāga and artist similarity measures. In our previous work, we proposed a compact representation of intonation based on the parametrization of the pitch histogram of a performance and demonstrated the usefulness of this representation through an explorative rāga recognition task in which we classified 42 vocal performances belonging to 3 rāgas using parameters of a single svara. In this paper, we extend this representation to employ context-based svara distributions, which are obtained with a different approach to find the pitches belonging to each svara. We quantitatively compare this method to our previous one, discuss the advantages, and the necessary melodic analysis to be carried out in future.