219 research outputs found

    Ad excitandum devotionis affectum: kleine Triptychen in der altniederländischen Malerei

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    Die Triptychonform mittelalterlicher Bilder wird als 'Flügelaltar' gemeinhin mit der Funktion des Altarretabels identifiziert. In der vorliegenden Studie geht es jedoch um eine Gruppe von mehr als einhundertfünfzig niederländischen Triptychen aus dem 15. und frühen 16. Jahrhundert, deren geringe Größe eine Benutzung als ortsfestes Retabel eines Kirchenaltars ausschließt. Die Qualität reicht von Spitzenwerken Jan van Eycks, Rogier van der Weydens und Jan Gossaerts bis hin zu der für den Antwerpener Kunstmarkt gefertigten Serienware. Bildliche und schriftliche Zeugnisse geben Hinweise darauf, wie die kleinen Triptychen, in deren Zentrum fast immer Maria oder Christus stehen, im privaten Bereich ihrer gläubigen Besitzer benutzt wurden. Karl Schade deutet die Triptychonform in ihrer privaten Verwendung als ein Mittel zum Hervorrufen von Andacht, 'ad excitandum devotionis affectum', wie es Thomas von Aquin in seiner für das gesamte Spätmittelalter verbindlichen triplex ratio imaginorum, der dreifachen Begründung für die Verwendung von Bildern im Christentum, formuliert hatte

    Persona?based development of a new discovery system using MERESCO open?source components

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    Sophie and Rogier are students at Delft University of Technology. Sophie is a master student of Architecture. She searches for information mostly to get inspired. Sometimes she’s looking for a specific book and uses Amazon first, because she knows what the cover looks like, but can’t remember the author or title. Rogier is writing his master’s thesis at the faculty of Civil Engineering. He searches the library for relevant publications. He is very insecure about the search results he’s getting back from the library catalogue and various bibliographic databases. Did he get the key publications? TU Delft Library’s websites and databases are not supporting either Sophie or Rogier’s needs. Sophie and Rogier are fictional customers of TU Delft Library. They are personas constructed from a context mapping study. Six different personas give our customers voices and faces. They help us specify the services and systems that our customers expect now and in the future, such as Discover (http://discover.tudelft.nl) which will replace the traditional WebOPAC. With Discover, Sophie and Rogier can use Google-like queries and drilldown facets to find both books from the catalogue and full text articles (from Elsevier, DOAJ, Repositories and more). Records are enriched with cover images, abstracts, user ratings and LibraryThing tags. Discover is built with Meresco open source component library, which uses the Lucene search engine.Library TU DelftDelft University of Technolog

    Author Correction: Toddlers strategically adapt their information search

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    Correction to: Nature Communicationshttps://doi.org/10.1038/s41467-024-48855-4, published online 10 July 2024 In this article the affiliation ‘Max Planck Research Group iSearch, Max Planck Institute for Human Development, Berlin, Germany’ was incorrectly given for Rogier Mars but should have been removed. In addition, the affiliation ‘Wellcome Centre for Integrative Neuroimaging, Centre for Functional MRI of the Brain (FMRIB), Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK’ was incorrectly given for Azzurra Ruggeri but should have been ‘Max Planck Research Group iSearch, Max Planck Institute for Human Development, Berlin, Germany’. The original article has been corrected

    Le Peire Rogier de Peire d’Alvernhe revisité par l’auteur de Flamenca : Guillem de Nevers, le troubadour au psautier

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    S’il a été établi que les paroles constitutives du dialogue amoureux entre les personnages du roman, Guillem de Nevers et Flamenca, prenaient leur source dans les vers de Peire Rogier (Ges non puesc en bon vers fallir, sixième cobla) ou encore dans ceux, inspirés du précédent, de Guiraut de Borneil (̶ Ai las, com mor ! – Quez as, amis ?), le lien entre Guillem de Nevers et Peire Rogier apparaît davantage évident si l’on prend en compte la vida de ce dernier ainsi que la cobla que lui consacre Peire d’Alvernhe dans sa chanson satirique Cantarai d’aqestz trobadors. Dans cette chanson, une partie du conseil de Peire d’Alvernhe à Peire Rogier – à savoir qu’au lieu de chanter l’amour devant tous, il devrait tenir un psautier à l’église ̶ resserre d’autant plus les liens entre le troubadour et le personnage du roman. Il semble que l’auteur de Flamenca se soit amusé à fondre dans son personnage le troubadour Peire Rogier afin de lui faire suivre les conseils de Peire d’Alvernhe mais en redirigeant la satire – qui visait le troubadour dans la chanson  ̶ , vers la société religieuse et, en apparence, courtoise de son roman : il instaure un jeu particulièrement ingénieux autour de la symbolique du psautier et de celle de l’homme religieux. En effet, l’auteur s’amuse à faire de Guillem un clerc dont l’ordination n’a pas d’autre raison que l’amour qu’il éprouve pour Flamenca comme il s’amuse à faire du livre sacré le support où Guillem lit – par le biais de la bibliomancie – l’avenir de son amour avec Flamenca, le support par lequel les baisers de paix préfigurent les baisers amoureux, le support au-dessus duquel il échange les mots d’amour avec Flamenca. L’auteur s’ingénie ainsi à recouvrir les mots et les gestes sacrés par les mots et les gestes de la fin’amor afin de nous laisser entendre que le sacré est à trouver dans les valeurs de cette dernière qui elles-mêmes – puisque, dans cette société qui n’a de courtoise que le nom, elles ne peuvent s’accomplir que par la ruse et la dissimulation – n’ont peut-être pas d’autre avenir que dans les sphères de la fiction.Although it has been established that the words that make up the love dialogue between the novel’s characters, Guillem de Nevers and Flamenca, originated in Peire Rogier’s verses (Ges non puesc en bon vers fallir, sixth cobla) or in those, inspired by the former, by Guiraut de Borneil (– Ai las, com mor ! – Quez as, amis ?), the link between Guillem de Nevers and Peire Rogier becomes even more obvious if we take into account the latter’s vida and the cobla dedicated to him by Peire d’Alvernhe in his satirical song Cantarai d’aqestz trobadors. In this song, part of Peire d’Alvernhe’s advice to Peire Rogier – namely, that instead of singing about love in front of everyone, he should hold a psalter in church ̶ further tightens the ties between the troubadour and the character in the novel. It seems that the author of Flamenca had fun fusing the troubadour Peire Rogier into his character in order to have him follow Peire d’Alvernhe’s advice, but redirecting the satire – which was aimed at the troubadour in the song –, towards the religious and, seemingly, courteous society of his novel : he sets up a particularly ingenious game about the symbolism of the psalter and that of the religious man. Indeed, the author amuses himself by making Guillem a cleric whose ordination has no other reason than the love he feels for Flamenca and by making the holy book the medium in which Guillem is able to foresee ̶ through bibliomancy  ̶ his love for Flamenca ; the medium also by which peace kisses foreshadow love kisses, and over which he exchanges words of love with Flamenca. In this way, the author ingeniously covers the sacred words and gestures with the ones of the fin’amor in order to suggest to us that the sacred is to be found in the values of the latter, which themselves – since, in this society which is courteous in name only, they can only be accomplished by cunning and dissimulation – perhaps have no other future than in the spheres of fiction

    Adaptive deformable mirror dynamics and modular control

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    The refractive index of air varies a.o. with temperature, humidity, pressure and the CO2 concentration. Due to atmospheric turbulence this refractive index varies both in space and in time, leading to aberrations in images of light having passed though it. These aberrations limit the achievable resolution of optical telescopes such that the quality of their images is no longer diffraction limited. An adaptive optics (AO) system is a means to recover the diffraction limited quality of the images. This can be achieved a.o. by reflecting the incoming light on a deformable mirror (DM) that adapts its shape to the wavefront of this light such that some norm of the residual wavefront after reflection is minimal. In this thesis novel designs are considered for the DM and its control system. They are primarily aimed at the 8m class of telescopes in visible light, leading to a 200Hz controller bandwidth requirement and 6mm actuator spacing or 5000 actuators on a 500mm diameter DM.. To observe fainter celestial objects and/or increase the image resolution, optical telescopes are foreseen with primary mirrors of up to 40m in diameter. Therefore, the DM system design is aimed at extendibility to a larger number of Degrees Of Freedom (DOF), which is realized using a modular concept. Other drivers are low power consumption to prevent the need for active cooling systems and low production costs. The DM design is realized using electromagnetic reluctance type actuators that are connected to the DM's reflective membrane by a thin rod. Modules containing 61 hexagonally arranged actuators are manufactured using techniques suitable for mass-production. To generate the currents through the actuator coils, driver electronics are developed based on Pulse-Width Modulation (implemented in FPGAs) in combination with analog low-pass filters. Several prototype DMs are realized whose behavior is analyzed both statically and dynamically by comparing Wyko and laser vibrometer measurements with first principle models of the driver electronics, the actuators and the facesheet. To retain modularity of the system, a distributed control system architecture is foreseen in which each (group of) actuator(s) has its own controller that has a fixed computational power, communicates only to its neighbors and receives only a subset of the wavefront measurement data. The design of a distributed controller with good performance is complicated by the wavefront reconstruction step made necessary by the Shack-Hartmann wavefront sensor. Nevertheless, a distributed algorithm that combines wavefront reconstruction with adaptive prediction is shown in simulation to approximate the performance of a centralized finite impulse response (FIR) predictor/reconstructor and does not deteriorate as the number of DOFs increases.DCSCMechanical, Maritime and Materials Engineerin

    Cerebral autoregulation: from minutes to seconds

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    Bij patiënten met vaatschade door suikerziekte werken de regelmechanismen die de bloedtoevoer naar de hersenen zo constant mogelijk houden bij veranderingen in bloeddruk (cerebrale autoregulatie), direct na een beroerte en bij een extreem hoge bloeddruk veel minder goed. Bij deze patiënten is de bloedtoevoer naar de hersenen veel afhankelijker van de bloeddruk dan bij gezonde personen, concludeert Rogier Immink. De hersenen, die twee procent van het lichaamsgewicht uitmaken, verbruiken twintig procent van alle zuurstof die in een lichaam wordt opgenomen. Onderbreking van de bloedtoevoer resulteert binnen seconden in bewustzijnsverlies en binnen minuten tot schade

    Modeling mind and matter: reductionism and psychological measurement in cognitive neuroscience

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    The article presents the author's response to an article related to reductionism and psychological measurement in cognitive neuroscience by Rogier A. Kievit and Denny Borsboom, published in a previous issue of the periodical. The author says that the commentaries by the writers in the article suggests that the implementation of conceptually guided psychometric models is viable. He also focuses on the relation between people and reductionism mentioned by the writers in the article

    Cow's milk allergy in infancy and childhood: immunological and clinical aspects

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    Allergy is an important disease that affects a substantial proportion of the general population, and which has seen an increasing incidence during the past three decades. Cows milk allergy (CMA) is one of the major food-allergies during infancy and early childhood. This thesis focuses on patients with CMA and atopic dermatitis (AD), which is the major presentation of CMA in the majority of patients during childhood. The aim of this thesis is to investigate the role of antigen-specific T cells in the etiology of CMA and AD. In addition, the currently used methods to diagnose CMA, in vivo and in vitro, are evaluated

    Anleitung Zu der Frantzösischen Sprach/ Begreiffend was anfänglich/ diese Sprach zuerlernen/ am allernöhtigsten sey: Der Jugend Teutscher Nation: zu besten verfertiget

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    ANLEITUNG ZU DER FRANTZÖSISCHEN SPRACH/ BEGREIFFEND WAS ANFÄNGLICH/ DIESE SPRACH ZUERLERNEN/ AM ALLERNÖHTIGSTEN SEY: DER JUGEND TEUTSCHER NATION: ZU BESTEN VERFERTIGET Anleitung Zu der Frantzösischen Sprach/ Begreiffend was anfänglich/ diese Sprach zuerlernen/ am allernöhtigsten sey: Der Jugend Teutscher Nation: zu besten verfertiget Anleitung Zu der Frantzösischen Sprach/ Begreiffend was anfänglich/ diese Sprach zuerlernen/ am allernöhtigsten sey: Der Jugend Teutscher Nation: zu besten verfertiget (Theil 2) ([1]r) Anleitung Zu der Frantzösischen Sprach/ Begreiffend was anfänglich/ diese Sprach zuerlernen/ am allernöhtigsten sey: Der Jugend Teutscher Nation: zu besten verfertiget (Forts.) ([1]r

    Cerebral autoregulation: from minutes to seconds

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    Bij patiënten met vaatschade door suikerziekte werken de regelmechanismen die de bloedtoevoer naar de hersenen zo constant mogelijk houden bij veranderingen in bloeddruk (cerebrale autoregulatie), direct na een beroerte en bij een extreem hoge bloeddruk veel minder goed. Bij deze patiënten is de bloedtoevoer naar de hersenen veel afhankelijker van de bloeddruk dan bij gezonde personen, concludeert Rogier Immink. De hersenen, die twee procent van het lichaamsgewicht uitmaken, verbruiken twintig procent van alle zuurstof die in een lichaam wordt opgenomen. Onderbreking van de bloedtoevoer resulteert binnen seconden in bewustzijnsverlies en binnen minuten tot schade
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