References of "2007"
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See detail”Det här är min sanning, berätta din.” Dekonstruktiv pragmatism som filosofi för utbildning
Biesta, Gert UL

in Boman, Y.; Ljunggren, C.; Von Wright, M. (Eds.) Erfarenheter av Pragmatism. (2007)

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See detailAménagements projetés, aménagements réalisés – Introduction
Schulz, Christian UL

in Frontières et Aménagement. Actes du Colloque (2007)

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See detailLearning Cultures and a Cultural Theory of Learning
Hodkinson, P.; Biesta, Gert UL; James, D.

in James, D.; Gert Biesta et al. (Eds.) Improving learning cultures in Further Education. (2007)

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See detailElastic uplift in southeast Greenland due to rapid ice mass lost
Khan, Shfaqat A.; Wahr, John; Stearns, Leigh A. et al

in Geophysical Research Letters (2007), 34(L21701), 1-6

The rapid unloading of ice from the southeastern sector of the Greenland ice sheet between 2001 and 2006 caused an elastic uplift of ~35 mm at a GPS site in Kulusuk. Most of the uplift results from ice ... [more ▼]

The rapid unloading of ice from the southeastern sector of the Greenland ice sheet between 2001 and 2006 caused an elastic uplift of ~35 mm at a GPS site in Kulusuk. Most of the uplift results from ice dynamic-induced volume losses on two nearby outlet glaciers. Volume loss from Helheim Glacier, calculated from sequential digital elevation models, contributes about ~16 mm of the observed uplift, with an additional ~5 mm from volume loss of Kangerdlugssuaq Glacier. The remaining uplift signal is attributed to significant melt-induced ice volume loss from the ice sheet margin along the southeast coast between 62°N and 66°N. [less ▲]

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See detailLuxemburger Schülerinnen und Schüler im internationalen Vergleich PISA 2006
Boehm, Bettina; Brunner, Martin UL; Ries, Edouard et al

in Nationaler Bericht Luxemburg (2007)

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See detailElektrodermale Aktivität
Vögele, Claus UL

in Gauggel, S.; Herrmann, M. (Eds.) Handbuch der Neuro- und Biopsychologie (2007)

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See detailGrid-based evolutionary strategies applied to the conformational sampling problem
Parent, Benjamin; Tantar, Alexandru-Adrian UL; Melab, Nouredine et al

in 2007 IEEE CONGRESS ON EVOLUTIONARY COMPUTATION, VOLS 1-10, PROCEEDINGS (2007)

Computational simulations of conformational sampling in general, and of macromolecular folding in particular represent one of the most important and yet one of the most challenging applications of ... [more ▼]

Computational simulations of conformational sampling in general, and of macromolecular folding in particular represent one of the most important and yet one of the most challenging applications of computer science in biology and medicinal chemistry. The advent of GRID computing may trigger some major progress in this field. This paper presents our first attempts to design GRID-based conformational sampling strategies, exploring the extremely rugged energy response surface in function of molecular geometry, in search of low energy zones through phase spaces of hundreds of degrees of freedom. We have generalized the classical island model deployment of Genetic Algorithms (GA) to a "planetary" model where each node of the grid is assimilated to a "planet" harboring quasi-independent multi-island simulations based on a hybrid GA-driven sampling approach. Although different "planets" do not communicate to each other - thus minimizing inter-CPU exchanges on the GRID - each new simulation will benefit from the preliminary knowledge extracted from the centralized pool of already visited geometries, located on the dispatcher machine, and which is disseminated to any new "planet". This "panspermic" strategy allows new simulations to be conducted such as to either be attracted towards an apparently promising phase space zone (biasing strategies, intensification procedures) or to avoid already in-depth sampled (tabu) areas. Successful folding of mini-proteins typically used in benchmarks for all-atoms protein simulations has been observed, although the reproducibility of these highly stochastic simulations in huge problem spaces is still in need of improvement. Work on two structured peptides (the "tryptophane cage" 1L2Y and the "tryptophane zipper" 1LE1) used as benchmarks for all-atom protein folding simulations has shown that the planetary model is able to reproducibly sample conformers from the neighborhood of the native geometries. However, within these neighborhoods (within ensembles of conformers similar to models published on hand of experimental geometry determinations), the energy landscapes are still extremely rugged. Therefore, simulations in general produce "correct" geometries (similar enough to experimental model for any practical purposes) which sometimes unfortunately correspond to relatively high energy levels and therefore are less stable than the most stable among misfolded conformers. The method thus reproducibly visits the native phase space zone, but fails to reproducibly hit the bottom of its rugged energy well. Intensifications of local sampling may in principle solve this problematic behavior, but is limited by computational ressources. The quest for the optimal time point at which a phase space zone should stop being intensively searched and declared tabu, a very difficult problem, is still awaiting for a practically useful solution. [less ▲]

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See detailEtude comparative sur la santé des étudiants.
Ionescu; Spitz, E.; Baumann, Michèle UL

in Caiete Sociologice (2007), 5

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See detailLes "lieux de mémoire" ou donner un sens à l'histoire
Margue, Michel UL; Kmec, Sonja UL

in Margue, Michel; Kmec, Sonja; Peporte, Pit (Eds.) et al Lieux de mémoire au Luxembourg. Usages du passé et construction nationale / Erinnerungsorte in Luxemburg. Umgang mit der Vergangenheit und Konstruktion der Nation (2007)

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See detailConstraining Dominant Shareholders' Self-Dealing: The Legal Framework in France, Germany, and Italy
Conac, Pierre-Henri UL; Enriques, Luca; Gelter, Martin

in European Company and Financial Law Review (2007), 4(4), 491

All jurisdictions supply corporations with legal tools to prevent or punish asset diversion by those, whether managers or dominant shareholders, who are in control. As previous research has shown, these ... [more ▼]

All jurisdictions supply corporations with legal tools to prevent or punish asset diversion by those, whether managers or dominant shareholders, who are in control. As previous research has shown, these rules, doctrines and remedies are far from uniform across jurisdictions, possibly leading to significant differences in the degree of investor protection they provide. Comparative research in this field is wrought with difficulty. It is tempting to compare corporate laws by taking one benchmark jurisdiction, typically the US, and to assess the quality of other corporate law systems depending on how much they replicate some prominent features. We take a different perspective and describe how three major continental European countries (France, Germany, and Italy) regulate dominant shareholders' self-dealing by looking at all the possible rules, doctrines and remedies available there. While the doctrines and remedies reviewed in this article are familiar enough to corporate lawyers and legal scholars from the respective countries, this is less true for many participants in the international discussion, which remains dominated by Anglophone legal scholars and economists. We suggest that some of these doctrines and remedies, namely the German prohibition against concealed distributions, the role of minority shareholders in the prosecution of abus de biens sociaux in France, and nullification suits in all three countries and especially in Germany and Italy, have not received the attention they deserve. [less ▲]

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See detailGesundheitsinformationen im Internet. Empirische Befunde zur gesundheitlichen Internetnutzung.
Lenz, Thomas UL; Zillien, Nicole

in Stegbauer, Christian; Jäckel, Michael (Eds.) Social Software: Formen der Kooperation in computerbasierten Netzwerken. (2007)

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See detailEfficient Optimal Sensor Placement for Model-Based FDI using an Incremental Algorithm
Rosich, Albert UL; Sarrate, Ramon; Puig, Vicenç et al

in Decision and Control, 2007 46th IEEE Conference on (2007)

The problem of optimal sensor placement for FDI consists in determining the set of sensors that minimizes a pre-defined cost function satisfying at the same time a pre-established set of FDI ... [more ▼]

The problem of optimal sensor placement for FDI consists in determining the set of sensors that minimizes a pre-defined cost function satisfying at the same time a pre-established set of FDI specifications for a given set of faults. Existing approaches are mainly based on formulating an optimization problem once the sets of all possible ARRs has been generated, considering all possible candidate sensors installed. However, the associated computational complexity is exponential with the number of possible sensors. The main goal of this paper is to propose an incremental algorithm for FDI sensor placement that tries to avoid the computational burden. To show the effectiveness of this approach, an application based on a fuel-cell system is proposed. [less ▲]

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See detailAccelerated variational dirichlet process mixtures
Kurihara, Kenichi; Welling, Max; Vlassis, Nikos UL

in Advances in Neural Information Processing Systems 19 (2007)

Dirichlet Process (DP) mixture models are promising candidates for clustering applications where the number of clusters is unknown a priori. Due to computational considerations these models are ... [more ▼]

Dirichlet Process (DP) mixture models are promising candidates for clustering applications where the number of clusters is unknown a priori. Due to computational considerations these models are unfortunately unsuitable for large scale data-mining applications. We propose a class of deterministic accelerated DP mixture models that can routinely handle millions of data-cases. The speedup is achieved by incorporating kd-trees into a variational Bayesian algorithm for DP mixtures in the stick-breaking representation, similar to that of Blei and Jordan (2005). Our algorithm differs in the use of kd-trees and in the way we handle truncation: we only assume that the variational distributions are fixed at their priors after a certain level. Experiments show that speedups relative to the standard variational algorithm can be significant. [less ▲]

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See detailA method for adjusting the centre of mass of a freely falling body in absolute gravimetry
Rothleitner, Christian UL; Svitlov, S.; Mérimèche, H. et al

in Metrologia (2007), 44(3), 234

In absolute gravimeters, rotation of the falling body causes a systematic error. This error can be minimized by coinciding the centre of mass (COM) of the body with its optical centre (OC). A method to ... [more ▼]

In absolute gravimeters, rotation of the falling body causes a systematic error. This error can be minimized by coinciding the centre of mass (COM) of the body with its optical centre (OC). A method to measure the distance between these centres in 3D space is described. The method is based on a mechanical balancing technique. Using this method, the COM of a hollow corner cube mirror assembly is adjusted to the OC to within (43 ± 16) µm. An uncertainty budget is given. [less ▲]

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See detailModeling and Analysis of UVB Influence on IL-1 induced NF-kappaB Signaling
Witt, Johannes; Husser, Sebastian; Kulms, Dagmar et al

in Proceedings of the FOSBE, September 9-12, Stuttgart, Germany (2007)

Enhancement of UVB-induced apoptosis has recently been reported upon co-stimulation of cells with IL-1. The phenomenon has been shown to be NF-kappaB dependent and coincides with a sustained absence of ... [more ▼]

Enhancement of UVB-induced apoptosis has recently been reported upon co-stimulation of cells with IL-1. The phenomenon has been shown to be NF-kappaB dependent and coincides with a sustained absence of the inhibitor of NF-kappaB, IkappaBalpha. The exact mechanisms are the subject of present research. In order to investigate the behavior of IkappaBalpha, a mathematical model for the IL-1 receptor is developed based on ordinary differential equations. It is coupled with an existing NF-kappaB signaling module and parameterized using experimental and literature data. The model provides a more realistic input for the NF-kappaB module and is suitable for fitting the experimental data of IkappaBalpha following IL-1 stimulation. It is used to test and reject the hypothesis that the sustained absence of IkappaBalpha upon IL-1+UVB stimulation is due to an altered internalization behavior of the IL-1 receptor. [less ▲]

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See detailDie Zürcher Schulsynode: Ein demokratisches Kuckucksei in der liberalen Ära Zürichs im 19. Jahrhundert
Tröhler, Daniel UL

in Crotti, Claudia; Gonon, Philipp; Herzog, Walter (Eds.) Pädagogik und Politik. Historische und aktuelle Perspektiven (2007)

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