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See detailExercising Nuprl's Open-Endedness
Rahli, Vincent UL

in The 5th International Congress on Mathematical Software (2016)

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See detailExigence de cohérence et action extérieure de l’Union européenne
Neframi, Eleftheria UL

in Michel, Valérie (Ed.) Le droit, les institutions et les politiques de l’Union européenne face à l’impératif de cohérence (2009)

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See detailLes exigences de prix dans les contrats internationaux
Prüm, André UL

in Cahiers de Droit de l'Entreprise (1997), (5),

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See detailExiste-t-il eu Europe un droit des personnes détenues à une alimentation conforme à leur religion ?
Riassetto, Isabelle UL

in Riassetto, Isabelle; Heuschling, Luc; Ravarani, Georges (Eds.) Liber amicorum - Rusen ERGEC (2017)

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See detailExiste-t-il une identité monétaire européenne?
Clavert, Frédéric UL

in Raflik, Jenny; Boers, Marloes (Eds.) Cultures nationales et identités communautaires (2010)

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See detailExiste-t-il une nouvelle conception du contrat?
Ancel, Pascal UL

in PIGNARRE, Geneviève (Ed.) Le droit des obligations d'un siècle à l'autre, Dialogues autour de la réforme du Titre III du Livre III du Code civil (2016)

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See detailExistence and Indeterminacy of Markovian Equilibria in Dynamic Bargaining Games
Anesi, Vincent UL; Duggan, John

in Theoretical Economics (2018), 13

This paper studies stationary Markov perfect equilibria in multidimensional models of dynamic bargaining, in which the alternative chosen in one period determines the status quo for the next. We ... [more ▼]

This paper studies stationary Markov perfect equilibria in multidimensional models of dynamic bargaining, in which the alternative chosen in one period determines the status quo for the next. We generalize a sufficient condition for existence of equilibrium due to Anesi and Seidmann, 2015. We then use this existence result to show that if a weak gradient restriction holds at an alternative, then when players are sufficiently patient, there is a continuum of equilibria with absorbing sets arbitrarily close to that alternative. A sufficient condition for our gradient restriction is that the gradients of all players' utilities are linearly independent at that alternative. When the dimensionality of the set of alternatives is high, this linear independence condition holds at almost all alternatives, and equilibrium absorbing sets are dense in the set of alternatives. This implies that constructive techniques, which are common in the literature, fail to identify many plausible outcomes in dynamic bargaining games. [less ▲]

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See detailExistence and stability of limit cycles in a macroscopic neuronal population model
Rodrigues, Sandra UL; Goncalves, Jorge UL; Terry, J.

in Physica D: Nonlinear Phenomena (2007), 233(1), 39-65

We present rigorous results concerning the existence and stability of limit cycles in a macroscopic model of neuronal activity. The specific model we consider is developed from the Ki set methodology ... [more ▼]

We present rigorous results concerning the existence and stability of limit cycles in a macroscopic model of neuronal activity. The specific model we consider is developed from the Ki set methodology, popularized by Walter Freeman. In particular we focus on a specific reduction of the KII sets, denoted RKII sets. We analyse the unfolding of supercritical Hopf bifurcations via consideration of the normal forms and centre manifold reductions. Subsequently we analyse the global stability of limit cycles on a region of parameter space and this is achieved by applying a new methodology termed Global Analysis of Piecewise Linear Systems. The analysis presented may also be used to consider coupled systems of this type. A number of macroscopic mean-field approaches to modelling human EEG may be considered as coupled RKII networks. Hence developing a theoretical understanding of the onset of oscillations in models of this type has important implications in clinical neuroscience, as limit cycle oscillations have been demonstrated to be critical in the onset of certain types of epilepsy. [less ▲]

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See detailExistence of An Intrinsic Glass Transition In A Silicon Rubber: Hypersonic Versus Calorimetric Properties
Krüger, Jan-Kristian UL; Mesquida, P.; Baller, Jörg UL

in Physical Review. B, Condensed Matter and Materials Physics (1999), 60(14), 10037-10041

Time-domain temperature-modulated differential scanning calorimetry and high-performance Brillouin spectroscopy have been used as experimental techniques in order to investigate the effect of the thermal ... [more ▼]

Time-domain temperature-modulated differential scanning calorimetry and high-performance Brillouin spectroscopy have been used as experimental techniques in order to investigate the effect of the thermal glass transition on the specific heat as well as on the acoustic properties, quantities which are intimately related by thermodynamics, but measured at completely different frequencies. Using a siloxane as a model substance, we demonstrate the efficiency of hypersonic relaxations until thermal freezing of the material. Introducing the optoacoustic dispersion function as a sensitive measure for structural relaxations, we show that the high-frequency α relaxations are truncated by the thermal glass transition instead of dying out at much higher temperatures. Moreover, the extrapolated static compliance of the rubbery state goes to zero close to but below the thermal glass transition temperature Tg, indicating the existence of an acoustic instability which is reminiscent of the so-called Kauzmann paradox. [less ▲]

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See detailExistence of non-trivial harmonic functions on Cartan-Hadamard manifolds of unbounded curvature
Arnaudon, Marc; Thalmaier, Anton UL; Ulsamer, Stefanie

in Mathematische Zeitschrift (2009), 263(2), 369-409

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See detailExistence of nontrivial solutions of linear functional equations.
Kiss, Gergely UL; Varga, Adrienn

in Aequationes Mathematicae (2014), 88(1-2), 151162

We investigate the existence of a solution of linear functional equations.

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See detailExistence of Positive Steady States for Mass Conserving and Mass-Action Chemical Reaction Networks with a Single Terminal-Linkage Class
Fleming, Ronan MT UL; Akle, Santiago; Dalal, Onkar et al

in arXiv preprint arXiv:1105.2359 (2013)

We establish that mass conserving, single terminal-linkage networks of chemical reactions admit positive steady states regardless of network deficiency and the choice of reaction rate constants. This ... [more ▼]

We establish that mass conserving, single terminal-linkage networks of chemical reactions admit positive steady states regardless of network deficiency and the choice of reaction rate constants. This result holds for closed systems without material exchange across the boundary, as well as for open systems with material exchange at rates that satisfy a simple sufficient and necessary condition. Our proof uses a fixed point of a novel convex optimization formulation to find the steady state behavior of chemical reaction networks that satisfy the law of mass-action kinetics. A fixed point iteration can be used to compute these steady states, and we show that it converges for weakly reversible homogeneous systems. We report the results of our algorithm on numerical experiments. [less ▲]

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See detailDie Exklusion von Schüler/innen mit sonderpädagogischem Förderbedarf. Ein Beitrag zur Debatte um nationale Bildungsstandards und die Schule für alle
Pfahl, Lisa; Powell, Justin J W UL

in Gemeinsam Leben : Zeitschrift für Integrative Erziehung (2005), (10), 68-78

Aktuelle bildungspolitische Reformbemühungen zielen darauf, eine Erhöhung der schulischen Leistungen zu bewirken und messbare Kompetenzen weiter zu entwickeln. Dabei wird die Selektion von Schüler/innen ... [more ▼]

Aktuelle bildungspolitische Reformbemühungen zielen darauf, eine Erhöhung der schulischen Leistungen zu bewirken und messbare Kompetenzen weiter zu entwickeln. Dabei wird die Selektion von Schüler/innen mit sonderpädagogischem Förderbedarf durch die Institution Schule und die Frage nach der Chancengleichheit eines segregierenden Schulsystems eher selten thematisiert. Statt solcher "Strukturfragen" stehen die Forderungen nach nationalen Bildungsstandards, Ganztagsschulen und der Kultushoheit der Bundesländer im Mittelpunkt der Diskussion. Die Idee einer individuellen Förderung von Schüler/innen, evtl. sogar in einer Schule für alle, wird seit PISA 2003 zunehmend Gegenstand der gesellschaftlichen Diskussion. Jedoch bleiben sonderpädagogische Förderprogramme trotz deren Spezialisierung auf solche individualisierte Unterrichtsformen, unberücksichtigt. Anhand zweier unterschiedlicher Ansätze in der Bildungsforschung - biographische Analysen und gesellschaftshistorische Vergleiche - werden die Autoren aufzeigen, dass die weitgehende Nicht-Berücksichtigung des sonderpädagogischen Bereichs in der allgemeinen Bildungsforschung die Scheiternserfahrungen von Kindern und Jugendlichen mit sonderpädagogischem Förderungsbedarf ausblendet, und die (inter)nationalen Ergebnisse von PISA, sowie die ermittelten - oder zu ermittelnden - "nationalen Bildungsstandards" verzerrt. Gerade die Situation von Kindern und Jugendlichen mit sonderpädagogischem Förderbedarf an Sonderschulen unterstreicht die Wichtigkeit der aktuellen Diskussion um eine Schule für alle. Eine solche Schulform wäre ohne diese Schüler/innen lediglich eine weitere exkludierende Schulform, denn Schulen ohne behinderte Kinder ist keine normalen Schulen. [less ▲]

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See detailExogenous covert shift of attention without the ability to plan eye movements.
Masson, Nicolas UL; Andres, Michael; Pereira, Sarah Carneiro et al

in Current biology : CB (2020), 30(18), 1032-1033

The automatic allocation of attention to a salient stimulus in the visual periphery (e.g., a traffic light turning red) while maintaining fixation elsewhere (e.g., on the car ahead) is referred to as ... [more ▼]

The automatic allocation of attention to a salient stimulus in the visual periphery (e.g., a traffic light turning red) while maintaining fixation elsewhere (e.g., on the car ahead) is referred to as exogenous covert shift of attention (ECSA). An influential explanation is that ECSA results from the programming of a saccadic eye movement toward the stimulus of interest [1,2], although the actual movement may be withheld if needed. In this paper, however, we report evidence of ECSA in the paralyzed axis of three individuals with either horizontal or vertical congenital gaze paralysis, including for stimuli appearing at locations that cannot be foveated through head movements. This demonstrates that ECSA does not require programming either eye or head movements and calls for a re-examination of the oculomotor account. [less ▲]

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See detailExome-wide analysis of mutational burden in patients with typical and atypical Rolandic Epilepsy
Bobbili, Dheeraj Reddy UL; Lal, Dennis; May, Patrick UL et al

in European Journal of Human Genetics (2018)

Rolandic Epilepsy (RE) is the most common focal epilepsy in childhood. To date no hypothesis-free exome-wide mutational screen has been conducted for RE and Atypical RE (ARE). Here we report on whole ... [more ▼]

Rolandic Epilepsy (RE) is the most common focal epilepsy in childhood. To date no hypothesis-free exome-wide mutational screen has been conducted for RE and Atypical RE (ARE). Here we report on whole-exome sequencing of 194 unrelated patients with RE/ARE and 567 ethnically matched population controls. We identified an exome-wide significantly enriched burden for deleterious and loss-of-function variants only for the established RE/ARE gene GRIN2A. The statistical significance of the enrichment disappeared after removing ARE patients. For several disease-related gene-sets, an odds ratio > 1 was detected for loss-of-function variants. [less ▲]

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See detailExpanded coverage of non-targeted LC-HRMS using atmospheric pressure chemical ionization: a case study with ENTACT mixtures.
Singh, Randolph UL; Chao, Alex; Phillips, Katherine A. et al

in Analytical and Bioanalytical Chemistry (2020)

Non-targeted analysis (NTA) is a rapidly evolving analytical technique with numerous opportunities to improve and expand instrumental and data analysis methods. In this work, NTA was performed on eight ... [more ▼]

Non-targeted analysis (NTA) is a rapidly evolving analytical technique with numerous opportunities to improve and expand instrumental and data analysis methods. In this work, NTA was performed on eight synthetic mixtures containing 1264 unique chemical substances from the U.S. Environmental Protection Agency’s Non-Targeted Analysis Collaborative Trial (ENTACT). These mixtures were analyzed by atmospheric pressure chemical ionization (APCI) and electrospray ionization (ESI) using both positive and negative polarities for a total of four modes. Out of the 1264 ENTACT chemical substances, 1116 were detected in at least one ionization mode, 185 chemicals were detected using all four ionization modes, whereas 148 were not detected. Forty-four chemicals were detected only by APCI, and 181 were detected only by ESI. Molecular descriptors and physicochemical properties were used to assess which ionization type was preferred for a given compound. One ToxPrint substructure (naphthalene group) was found to be enriched in compounds only detected using APCI, and eight ToxPrints (e.g., several alcohol moieties) were enriched in compounds only detected using ESI. Examination of physicochemical parameters for ENTACT chemicals suggests that those with higher aqueous solubility preferentially ionized by ESI−. While ESI typically detects a larger number of compounds, APCI offers chromatograms with less background, fewer co-elutions, and additional chemical space coverage, suggesting both should be considered for broader coverage in future NTA research. [less ▲]

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See detailExpanded metabolic reconstruction of Helicobacter pylori (iIT341 GSM/GPR): an in silico genome-scale characterization of single- and double-deletion mutants.
Thiele, Ines UL; Vo, Thuy D.; Price, Nathan D. et al

in Journal of Bacteriology (2005), 187(16), 5818-30

Helicobacter pylori is a human gastric pathogen infecting almost half of the world population. Herein, we present an updated version of the metabolic reconstruction of H. pylori strain 26695 based on the ... [more ▼]

Helicobacter pylori is a human gastric pathogen infecting almost half of the world population. Herein, we present an updated version of the metabolic reconstruction of H. pylori strain 26695 based on the revised genome annotation and new experimental data. This reconstruction, iIT341 GSM/GPR, represents a detailed review of the current literature about H. pylori as it integrates biochemical and genomic data in a comprehensive framework. In total, it accounts for 341 metabolic genes, 476 intracellular reactions, 78 exchange reactions, and 485 metabolites. Novel features of iIT341 GSM/GPR include (i) gene-protein-reaction associations, (ii) elementally and charge-balanced reactions, (iii) more accurate descriptions of isoprenoid and lipopolysaccharide metabolism, and (iv) quantitative assessments of the supporting data for each reaction. This metabolic reconstruction was used to carry out in silico deletion studies to identify essential and conditionally essential genes in H. pylori. A total of 128 essential and 75 conditionally essential metabolic genes were identified. Predicted growth phenotypes of single knockouts were validated using published experimental data. In addition, in silico double-deletion studies identified a total of 47 synthetic lethal mutants involving 67 different metabolic genes in rich medium. [less ▲]

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See detailExpanding spaces of participation: insights from an infrastructural project in rural Nepal
Cima, Ottavia UL

in Geographica Helvetica (2015), 70(4), 353-361

The spread of participatory development worldwide has multiplied opportunities for local population to engage in paid and unpaid development activities. However, scholars have pointed out that ... [more ▼]

The spread of participatory development worldwide has multiplied opportunities for local population to engage in paid and unpaid development activities. However, scholars have pointed out that participatory approaches bear the risk of strengthening unequal social structures, despite their emphasis on democratisation and inclusion. This paper investigates the case of a Swiss-funded infrastructural project in rural Nepal, analysing the role of participatory spaces in the dynamics of development resource capture. The empirical material collected suggests that, although participatory development has created more opportunities for social mobility, these opportunities are not necessarily open to everyone. In the case studied, the transformational potential of participation is only partially fulfilled. [less ▲]

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