68 research outputs found
Theorie der selbstorganisierten molekularen Strukturbildung auf metallischen Substraten
No full textStephan BlankenburgPaderborn, Univ., Diss., 200
Studying the Role of Human Parietal Cortex in Visuospatial Attention with Concurrent TMS-fMRI
No full textCombining transcranial magnetic stimulation (TMS) with concurrent functional magnetic resonance imaging (fMRI) allows study of how local brain stimulation may causally affect activity in remote brain regions. Here, we applied bursts of high- or low-intensity TMS over right posterior parietal cortex, during a task requiring sustained covert visuospatial attention to either the left or right hemifield, or in a neutral control condition, while recording blood oxygenation-level-dependent signal with a posterior MR surface coil. As expected, the active attention conditions activated components of the well-described "attention network," as compared with the neutral baseline. Also as expected, when comparing left minus right attention, or vice versa, contralateral occipital visual cortex was activated. The critical new finding was that the impact of high- minus low-intensity parietal TMS upon these visual regions depended on the currently attended side. High- minus low-intensity parietal TMS increased the difference between contralateral versus ipsilateral attention in right extrastriate visual cortex. A related albeit less pronounced pattern was found for left extrastriate visual cortex. Our results confirm that right human parietal cortex can exert attention-dependent influences on occipital visual cortex and provide a proof of concept for the use of concurrent TMS-fMRI in studying how remote influences can vary in a purely top-down manner with attentional demands
Blankenburgtunnel
No full textIn dit verslag is de aandacht vooral uitgegaan naar het noordelijke landhoofd van deze tunnel. De Blankenburg zal onder de Nieuwe Waterweg komen te liggen, nabij Maassluis (noordelijke oever) en Rozenburg (zuidelijke oever). Momenteel is het nog niet zeker of er een nieuwe ondergrondse oeververbinding onder de Nieuwe Waterweg gerealiseerd zal worden. Als deze er zal komen, dan is de keuze tussen deze tunnel en een tweede Beneluxtunnel. Het afstudeerwerk gaat enkel over het noordelijke gedeelte van de tunnel. Het zuidelijke gedeelte van deze tunnel is het afstudeeronderwerp van de heer G. Schotanus. Hoewel deze twee studies gelijktijdig liepen, is er vrijwel geen onderling overleg geweest.Hydraulic EngineeringCivil Engineering and Geoscience
Understanding Molecular Recognition and Self-Assembly from Large-Scale Numerical Simulations
No full text
Identität als Recht
No full text'Identitätsansprüche sind in der Mode. Sie sind als soziologischer Konstruktivismus noch unverbindlicher Diskurs, spätestens mit der Lobby der Menschenrechte werden sie zur politischen Organisation. Dabei erhalten die universellen Menschenrechtsforderungen merkwürdige Bettgenossen immer dann, wenn ethnische und kulturelle Identitätsansprüche Definitionsansprüche mit Herrschaftsmacht erreichten. Beispiele hierfür finden sich von der Vorgeschichte des Zionismus, bei ethnozentrischem Genozid bis zu feministischen Lobbygruppen. Der Autor prognostiziert einen sozial-darwinistischen Selektionsprozeß, demgemäß die Überproduktion von kulturellen Identitätsansprüchen auf universell akzeptable Normen reduziert wird.' (Autorenreferat)'Identity claims are 'in', ranging from uncommittal sociological constructivism to human rights lobbies. They are being used in the universal rights discourse as well as in organized lobbies of cultural identity claims. That makes for strange bedfellows when early zionists use the same figures of speech as do ethnocratic groups or feminist movements. The author predicts a social-Darwinistic selection process of the over-use of cultural identity claims reducing them to universally acceptable norms.' (author's abstract)
The current landscape of author guidelines in chemistry through the lens of research data sharing
No full textThis data package contains the results of a large-scale analysis of author guidelines from several publishers and journals active in chemistry research, showing how well the publishing landscape supports different criteria
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