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See detailGrenzüberschreitung durch Aufbrechen erstarrter sprachlicher Konventionen: Neuinszenierungen von ‚Kultur’ und ‚Sprache’ in der Rhetorik postkolonialer Theoriebildung
Hu, Adelheid UL

in Duxa, A.; Hu, A.; Schmenk, B. (Eds.) Grenzen überschreiten. Menschen, Sprachen, Kulturen. (2005)

Detailed reference viewed: 107 (0 UL)
See detailGrenzüberschreitungen. Menschen, Sprachen, Kulturen. Festschrift zum 60. Geburtstag von Inge C. Schwerdtfeger
Hu, Adelheid UL; Duxa, Susanna; Schmenk, Barbara

Book published by Gunter Narr (2005)

Detailed reference viewed: 77 (0 UL)
See detailGrenzverschiebungen. Theoriekonzepte zum Begriff „Grenze“
Baltes-Löhr, Christel UL

in Geisen, Thomas; Karcher, Allen (Eds.) Grenze: Sozial – Politisch – Kulturell (2003)

Detailed reference viewed: 81 (4 UL)
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See detailDie Gretchenfrage
Weber, Jean-Marie UL

in Luxemburger Wort (2017)

Detailed reference viewed: 49 (2 UL)
See detailGRETI - Groupe de recherche transfrontalière interdisciplinaire Presentation of multilingual projects
Langinier, Hélène; Polzin-Haumann, Claudia; Ehrhart, Sabine UL et al

Conference given outside the academic context (2015)

Detailed reference viewed: 91 (6 UL)
Peer Reviewed
See detailLa grève générale de mars 1921 au Luxembourg: du conflit social au symbole national
Scuto, Denis UL

in Morelli, Anne; Zamora, Daniel (Eds.) Grève générale, rêve général. Espoir de transformation sociale (2016)

Detailed reference viewed: 108 (10 UL)
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See detailUne grève sous la menace des baïonnettes allemandes
Scuto, Denis UL

Article for general public (2017)

Detailed reference viewed: 68 (6 UL)
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See detailGRID-BASED CONFORMATIONAL SAMPLING
Parent, Benjamin; Tantar, Alexandru-Adrian UL; Melab, Nouredine et al

in STUDIA UNIVERSITATIS BABES-BOLYAI CHEMIA (2008), 53(2), 43-48

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. This paper presents a massively parallel GRID-based conformational sampling strategy, 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 using a hybrid GA. 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 of already visited geometries, located on the dispatcher machine, and which are 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 all-atom folding of mini-proteins typically used in benchmarks (the Trp cage 1L2Y and the Trp zipper 1LE1) has been observed, although the reproducibility of these highly stochastic simulations in huge problem spaces is still in need of improvement. [less ▲]

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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 detailA grid-based genetic algorithm combined with an adaptive simulated annealing for protein structure prediction
Tantar, Alexandru-Adrian UL; Melab, Nouredine; Talbi, El-Ghazali

in SOFT COMPUTING (2008), 12(12), 1185-1198

A hierarchical hybrid model of parallel metaheuristics is proposed, combining an evolutionary algorithm and an adaptive simulated annealing. The algorithms are executed inside a grid environment with ... [more ▼]

A hierarchical hybrid model of parallel metaheuristics is proposed, combining an evolutionary algorithm and an adaptive simulated annealing. The algorithms are executed inside a grid environment with different parallelization strategies: the synchronous multi-start model, parallel evaluation of different solutions and an insular model with asynchronous migrations. Furthermore, a conjugated gradient local search method is employed at different stages of the exploration process. The algorithms were evaluated using the protein structure prediction problem, having as benchmarks the tryptophan-cage protein (Brookhaven Protein Data Bank ID: 1L2Y), the tryptophan-zipper protein (PDB ID: 1LE1) and the alpha-Cyclodextrin complex. Experimentations were performed on a nation-wide grid infrastructure, over six distinct administrative domains and gathering nearly 1,000 CPUs. The complexity of the protein structure prediction problem remains prohibitive as far as large proteins are concerned, making the use of parallel computing on the computational grid essential for its efficient resolution. [less ▲]

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See detailA Grid-Based Hybrid Hierarchical Genetic Algorithm for Protein Structure Prediction
Tantar, Alexandru-Adrian UL; Melab, Nouredine; Talbi, El-Ghazali

in Vega, Franciscofernández; Cantú-Paz, Erick (Eds.) Parallel and Distributed Computational Intelligence (2010)

Detailed reference viewed: 127 (0 UL)
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See detailA Grid-enabled CPU scavenging architecture and a case study of its use in Greek School Network
Georgatos, Fotis UL; Gkamas, Vasileios; Ilias, Aristeidis et al

in Journal of Grid Computing (2010), 8(1), 61-75

In this paper we present a CPU scavenging architecture suitable for desktop resources, and we study its appropriateness in exploiting the PC Laboratory resources of the Greek School Network and their ... [more ▼]

In this paper we present a CPU scavenging architecture suitable for desktop resources, and we study its appropriateness in exploiting the PC Laboratory resources of the Greek School Network and their integration to the existing HellasGrid national infrastructure. School laboratories form an extensive network equipped with computational systems and fast Internet connections. As this infrastructure is utilized at most 8 h per day and 5 days per week, it could be made available during its remaining idle time for computational purposes through the use of Grid technology. The structure and organization of the school laboratories and backbone network enables the CPU scavenging service, as an independent and additional service, which will not violate the operational rules and policies of the school network, while it will add additional resources to the current HellasGrid infrastructure with low adaptation cost. [less ▲]

Detailed reference viewed: 76 (0 UL)
See detailGriechenland und die Euro-Stabilität,
Bekkour, Lamia UL; Rasmouki, Fanou UL

Diverse speeches and writings (2012)

Detailed reference viewed: 53 (1 UL)
See detailGrimm-Rezeption in Maurice Maeterlincks Drama Pelléas et Mélisande
Küpper, Achim UL

Presentation (2012)

Detailed reference viewed: 10 (0 UL)
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See detailDer Grossvater Pestalozzis als pietistisch-pädagogischer Vermittler? Einleitung
Tröhler, Daniel UL

in Neue Pestalozzi-Blätter : Zeitschrift für pädagogische Historiographie (1997), 3(1), 28-29

Detailed reference viewed: 23 (0 UL)
See detailGrotesque humour and undignified Life in Yu Hua’s novels
Kohns, Oliver UL

Scientific Conference (2017, July)

Yu Hua’s novels, especially "To Live" (活着) und "Brothers" (兄弟), are characterized by their preference for grotesque scenes in which protagonists face situations of humiliation and degradation. In ... [more ▼]

Yu Hua’s novels, especially "To Live" (活着) und "Brothers" (兄弟), are characterized by their preference for grotesque scenes in which protagonists face situations of humiliation and degradation. In "Brothers", the protagonist Song Gang has to undergo a surgery and becomes provided with female breasts, in order to promote an ointment for breast augmentation. According to Mikhail Bakhtin, the deformation of the human body is typical for grotesque humor (as can be shown in Rabelais). Bakthin's description of grotesque humor, however, reveals a certain affinity towards totalitarian politics, and this is certainly true also for Yu Hua. In his novels, grotesque Humor is associated with a political situation in which human dignity is constantly getting undermined. As Yan Lianke puts it, living in modern china is categorically "without dignity": This statement is confirmed in Yu Hua’s novels. The texts deal with the protagonists’ search for dignity, and at the same time they explore the possibility of critical writing under conditions of political control. [less ▲]

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See detailGrothendieck-Teichmueller and Batalin-Vilkovisky
Merkulov, Sergei UL; Willwacher, Thomas

in Letters in Mathematical Physics (2014), 104(5), 625-634

It is proven that, for any affine supermanifold M equipped with a constant odd symplectic structure, there is a universal action (up to homotopy) of the Grothendieck-Teichmueller Lie algebra grt on the ... [more ▼]

It is proven that, for any affine supermanifold M equipped with a constant odd symplectic structure, there is a universal action (up to homotopy) of the Grothendieck-Teichmueller Lie algebra grt on the set of quantum BV structures (i. e.\ solutions of the quantum master equation) on M. [less ▲]

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See detailGrothendieck-Teichmueller group and Poisson cohomologies
Alm, Johan; Merkulov, Sergei UL

in Journal of Noncommutative Geometry (2015), 9(1), 185-214

We study actions of the Grothendieck–Teichmüller group GRT on Poisson cohomologies of Poisson manifolds, and prove some “go” and “no-go” theorems associated with these actions.

Detailed reference viewed: 99 (13 UL)
See detailGrothendieck-Teichmueller group, operads and graph complexes: a survey
Merkulov, Sergei UL

E-print/Working paper (2019)

This paper attempts to provide a more or less self-contained introduction into theory of the Grothendieck-Teichmueller group and Drinfeld associators using the theory of operads and graph complexes.

Detailed reference viewed: 57 (0 UL)
See detailGroundwater Storage in a Karst Vadose Zone Evidenced Using Gravimetric and Surface-to-borehole ERT Monitoring Systems
Watlet, A.; Kaufmann, O.; Francis, Olivier UL et al

Poster (2015, September 06)

Detailed reference viewed: 152 (11 UL)