![]() ; Besseron, Xavier ![]() in PASCO '07 Proceedings of the 2007 international workshop on Parallel symbolic computation (2007, July) Detailed reference viewed: 77 (2 UL)![]() Ignatenko, Andrew ![]() in Optics and Spectroscopy (2007), 103(1), 121-128 Dynamics of the elementary photoelectric conversion upon interaction of a single-photon mode with a bound electron in a one-dimensional rectangular potential well is considered. The spatial and temporal ... [more ▼] Dynamics of the elementary photoelectric conversion upon interaction of a single-photon mode with a bound electron in a one-dimensional rectangular potential well is considered. The spatial and temporal dynamics of the wave packet corresponding to a free photoelectron is investigated. [less ▲] Detailed reference viewed: 118 (1 UL)![]() ![]() Pignault, Anne ![]() Scientific Conference (2007, July) Detailed reference viewed: 34 (0 UL)![]() ![]() Sagrillo, Damien ![]() Scientific Conference (2007, July) Detailed reference viewed: 91 (4 UL)![]() ; ; Di Luca, Samuel ![]() in Experimental Brain Research (2007), 180(3), 525-34 Motor actions can be simulated and generated through the perception of objects and their characteristics. Such functional characteristics of objects with given action capabilities are called affordances ... [more ▼] Motor actions can be simulated and generated through the perception of objects and their characteristics. Such functional characteristics of objects with given action capabilities are called affordances. Here we report an interaction between the perception of affordances and the processing of numerical magnitude, and we show that the numerical information calibrates the judgement of action even when no actual action is required. In Experiment 1, participants had to judge whether they would be able to grasp a rod lengthways between their thumb and index finger. The presentation of the rod was preceded by a number or a non-numerical symbol. When a small number preceded the rod, participants overestimated their grasp; conversely, when a large number preceded the rods, they underestimated their grasp. In Experiment 2, participants were requested to judge if two successive rods had the same length, a judgement that did not involve any grasping. The numerical primes had no effect on this judgement, showing that the magnitude/affordance interaction was not due to a simple perceptual effect. Finally, Experiment 3 showed that the interaction was not present with a non-numerical ordered sequence, thereby eliminating sequence order as a potentially confounding variable. [less ▲] Detailed reference viewed: 102 (0 UL)![]() ![]() ; Varrette, Sébastien ![]() in Proc. of the ACM Intl. Workshop on Parallel Symbolic Computation’07 (PASCO’07) (2007, July) Detailed reference viewed: 89 (0 UL)![]() ![]() Houssemand, Claude ![]() ![]() Scientific Conference (2007, July) Detailed reference viewed: 88 (0 UL)![]() ![]() Meyers, Raymond ![]() ![]() Scientific Conference (2007, July) Detailed reference viewed: 57 (0 UL)![]() Linster, Carole ![]() in Journal of Biological Chemistry (2007), 282(26), 18879-85 The first committed step in the biosynthesis of L-ascorbate from D-glucose in plants requires conversion of GDP-L-galactose to L-galactose 1-phosphate by a previously unidentified enzyme. Here we show ... [more ▼] The first committed step in the biosynthesis of L-ascorbate from D-glucose in plants requires conversion of GDP-L-galactose to L-galactose 1-phosphate by a previously unidentified enzyme. Here we show that the protein encoded by VTC2, a gene mutated in vitamin C-deficient Arabidopsis thaliana strains, is a member of the GalT/Apa1 branch of the histidine triad protein superfamily that catalyzes the conversion of GDP-L-galactose to L-galactose 1-phosphate in a reaction that consumes inorganic phosphate and produces GDP. In characterizing recombinant VTC2 from A. thaliana as a specific GDP-L-galactose/GDP-D-glucose phosphorylase, we conclude that enzymes catalyzing each of the ten steps of the Smirnoff-Wheeler pathway from glucose to ascorbate have been identified. Finally, we identify VTC2 homologs in plants, invertebrates, and vertebrates, suggesting that a similar reaction is used widely in nature. [less ▲] Detailed reference viewed: 140 (3 UL)![]() ![]() Reichert, Monique ![]() Scientific Conference (2007, June 29) Detailed reference viewed: 85 (1 UL)![]() ![]() ; ; et al in PLoS computational biology (2007), 3(6), 117 Residue interaction networks and loop motions are important for catalysis in dihydrofolate reductase (DHFR). Here, we investigate the effects of ligand binding and chain connectivity on network ... [more ▼] Residue interaction networks and loop motions are important for catalysis in dihydrofolate reductase (DHFR). Here, we investigate the effects of ligand binding and chain connectivity on network communication in DHFR. We carry out systematic network analysis and molecular dynamics simulations of the native DHFR and 19 of its circularly permuted variants by breaking the chain connections in ten folding element regions and in nine nonfolding element regions as observed by experiment. Our studies suggest that chain cleavage in folding element areas may deactivate DHFR due to large perturbations in the network properties near the active site. The protein active site is near or coincides with residues through which the shortest paths in the residue interaction network tend to go. Further, our network analysis reveals that ligand binding has "network-bridging effects" on the DHFR structure. Our results suggest that ligand binding leads to a modification, with most of the interaction networks now passing through the cofactor, shortening the average shortest path. Ligand binding at the active site has profound effects on the network centrality, especially the closeness. [less ▲] Detailed reference viewed: 101 (0 UL)![]() Deffert, Dietmar ![]() Doctoral thesis (2007) Detailed reference viewed: 62 (0 UL)![]() Ehrhart, Sabine ![]() Scientific Conference (2007, June 11) Detailed reference viewed: 60 (0 UL)![]() Cicotti, Claudio ![]() Presentation (2007, June 07) Detailed reference viewed: 58 (0 UL)![]() Schiltz, Jang ![]() Scientific Conference (2007, June 01) Detailed reference viewed: 15 (0 UL)![]() Bund, Andreas ![]() Scientific Conference (2007, June) Detailed reference viewed: 187 (1 UL)![]() Bund, Andreas ![]() in Beek, Peter; van de Langenberg, Rolf (Eds.) European Workshop on Movement Science - Book of Abstracts (2007, June) Detailed reference viewed: 69 (0 UL)![]() ; Van Baars, Stefan ![]() in Land+Water (2007) In de zomer van 2005 werd New Orleans zwaar getroffen door orkaan Katrina. Dat het waterkeringsysteem heeft gefaald is iedereen bekend, maar wat daar de redenen voor waren is veel minder bekend. De ... [more ▼] In de zomer van 2005 werd New Orleans zwaar getroffen door orkaan Katrina. Dat het waterkeringsysteem heeft gefaald is iedereen bekend, maar wat daar de redenen voor waren is veel minder bekend. De opgetreden waterstanden hadden immers volgens Nederlandse maatstaven gekeerd moeten kunnen worden. Nu blijkt echter dat er een groot aantal problemen waren met het waterkeringsysteem. De belangrijkste worden in dit artikel beschreven. [less ▲] Detailed reference viewed: 64 (2 UL)![]() Steffgen, Georges ![]() Presentation (2007, June) Detailed reference viewed: 198 (0 UL)![]() Bund, Andreas ![]() Poster (2007, June) Detailed reference viewed: 57 (0 UL) |
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