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See detailA dataset for hadron elastic scattering
Cudell, Jean-René ULg; Lenguel, Sasha; Martynov, E.

Textual, factual or bibliographical database (2007)

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See detailOptimal control simulation of the Deutsch-Josza algorithm in a two-dimensional double well coupled to an environment
Ndong, Mamadou; Lauvergnat, David; Chapuisat, Xavier et al

in Journal of Chemical Physics (2007), 126

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See detailAnalyse de l’évolution des plaines alluviales du massif ardennais grâce aux résidus de la sidérurgie ancienne
Houbrechts, Geoffrey ULg; Mols, Julien; Petit, François ULg

Poster (2007)

Dès la fin du XIVe siècle, des sidérurgistes installèrent leurs fourneaux et leurs affineries le long des cours d’eau du massif ardennais afin d’utiliser l’énergie hydraulique pour actionner les soufflets ... [more ▼]

Dès la fin du XIVe siècle, des sidérurgistes installèrent leurs fourneaux et leurs affineries le long des cours d’eau du massif ardennais afin d’utiliser l’énergie hydraulique pour actionner les soufflets et les marteaux des forges. De grandes quantités de scories, résidus de la sidérurgie ancienne, étaient produites lors de la transformation du minerai de fer en métal et étaient ensuite entassées à proximité des bâtiments, généralement sur les plaines alluviales. Ces éléments pouvaient donc être emportés par les crues débordantes ou par érosion des crassiers, se mélanger aux alluvions naturelles et se déposer en aval. Grâce aux études historiques, il est possible de dater de manière relativement précise les périodes de fonctionnement des différents sites sidérurgiques dans une vallée. Nous avons donc développé une méthode qui consiste à utiliser les concentrations en scories sidérurgiques comme traceur pour dater les dépôts fluviatiles, enfouis et conservés dans les plaines alluviales. Pour plusieurs rivières du massif ardennais, nous avons déterminé des taux de sédimentation moyens pour les derniers siècles et nous avons quantifié l’importance de la mobilité latérale des cours d’eau. Ces données sont particulièrement rares étant donné l’imprécision des cartes anciennes et des méthodes de datation pour cette période. [less ▲]

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See detailAttention to self-referential stimuli: Can I stop looking at myself?
Devue, Christel ULg; Jamaer, Nathalie; Brédart, Serge ULg

in Perception (2007), 36(Suppl. S),

Auto-referential materials (own name) have been described as particularly prone to capture attention. Some recent studies by Harris and Pashler (2004 Psychological Science 15 171 - 178) and Gronau et al ... [more ▼]

Auto-referential materials (own name) have been described as particularly prone to capture attention. Some recent studies by Harris and Pashler (2004 Psychological Science 15 171 - 178) and Gronau et al (2003 Journal of Experimental Psychology: General 132 512 - 529) have questioned this view and showed that these own-name effects are temporary and appear only in specific conditions: when enough resources are available or when the own name is a task-irrelevant stimulus presented in the focus of attention. In the present study, a stimulus that is unique to each individual was used: the self-face. In experiment 1, the self-face produced a temporary distraction when presented at fixation during a digit-parity task. However, this distraction was not different from that triggered by another highly familiar face. In experiment 2, familiar faces failed to produce interference when presented outside the focus of attention. Experiment 3, using a less demanding task, indicated that when few resources are required, the self-face may interfere even when presented peripherally. These results confirm recent findings showing that auto-referential materials are special only in specific conditions. [less ▲]

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See detailNeurobiological and genetic aspects of alcohol addiction: a special focus on acetaldehyde, the first metabolite of ethanol
Quertemont, Etienne ULg

Scientific conference (2007)

Although alcoholism is one of the most common forms of addiction, its neurobiological mechanisms still remain unclear. The reinforcing properties of ethanol are mediated by the interaction of multiple ... [more ▼]

Although alcoholism is one of the most common forms of addiction, its neurobiological mechanisms still remain unclear. The reinforcing properties of ethanol are mediated by the interaction of multiple neurotransmitter systems, including dopamine, serotonin, glutamate, GABA, endogenous opioids and endocannabinoids. Additionally, long term changes in these neurotransmitter systems are believed to promote the development of alcoholism, probably through specific alterations of brain regions involved in motivation. In humans, it has been clearly demonstrated that alcohol dependence is a genetically heritable disease, at least to some extent. Twin and adoptions studies indicate that 50-60% of the phenotypic variations in alcohol dependence are accounted for by a genetic component. Among the multiple genes that are possibly involved in the development of alcohol dependence and addiction, there is very strong evidence that genes related to the metabolism of ethanol play a major role. For example, genetic polymorphisms in alcohol and aldehyde dehydrogenase enzymes strongly affect alcoholism susceptibility in humans. In recent years, several studies have also provided evidence that acetaldehyde, the first metabolite of ethanol, contributes to alcohol abuse and alcoholism. In rodents such as rats and mice, low doses of brain acetaldehyde induce reinforcing and stimulant effects, although high concentrations of peripheral blood acetaldehyde produce adverse reactions. These results led to the controversial theory that acetaldehyde mediates or at least contributes to the reinforcing and addictive properties of ethanol. [less ▲]

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See detailAcute and chronic effects of acetaldehyde on learning and memory in mice
Quertemont, Etienne ULg; Tambour, Sophie ULg; Didone, Vincent ULg

in Alcohol & Alcoholism (2007), 42 Suppl. 1

Acetaldehyde has been postulated to mediate several of the behavioral effects of ethanol, including its reinforcing properties. At the highest doses, alcohol disrupts the acquisition and performance of ... [more ▼]

Acetaldehyde has been postulated to mediate several of the behavioral effects of ethanol, including its reinforcing properties. At the highest doses, alcohol disrupts the acquisition and performance of memory tasks, culminating with the blackout experience at high blood alcohol concentrations. However, it remains unknown whether acetaldehyde is involved in such memory impairments induced by acute ethanol. Additionally, chronic alcohol consumption in humans sometimes leads to persistent memory impairments partly due to serious brain damages. The Wernicke-Korsakoff syndrome, characterized by severe anterograde amnesia, is the most serious memory disorder induced by chronic alcohol. The aim of the present study was to show whether acute and chronic treatments with acetaldehyde, the first metabolite of ethanol, lead to similar memory impairments as ethanol in mice. Memory performances of Swiss and C57BL/6J mice were tested in both the passive avoidance task and the fear conditioning procedure. In the first part of the experiments mice were injected with acute acetaldehyde (50 to 300 mg/kg) immediately after the training phase. In the second part of the experiment, mice were tested for memory performance after 10 daily acetaldehyde injections. The first part of the experiments shows that acute acetaldehyde administrations produce a strong amnesic effect in both experimental paradigms. Additionally, the amnesic effects of acetaldehyde were more consistent than those observed after ethanol administration. In the second part of the studies, we show that 10 daily acetaldehyde injections to mice led to a severe and persistent anterograde amnesia in both the pavlovian and the operant learning tasks. In conclusion, acute acetaldehyde produces strong amnesic effects trough yet unknown pharmacological mechanisms. In addition, chronic acetaldehyde administration leads to persistent memory impairments. These results suggest that acetaldehyde might be involved in both the acute amnesic effects of high ethanol doses and the neurotoxic effects of chronic alcohol consumption. [less ▲]

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See detailInfluence de la variété de blé tendre sur les caractéristiques physico-chimiques et les propriétés techno-fonctionnelles de l'amidon
Massaux, Carine; Lenartz, Jonathan; Bodson, Bernard ULg et al

in Industries des Céréales (2007), 151

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See detailContinuous-state reinforcement learning with fuzzy approximation
Busoniu, Lucian; Ernst, Damien ULg; Babuska, Robert et al

in Proceedings of the 7th European Symposium on Adaptive Learning Agents and Multi-Agent Systems (ALAMAS-07) (2007)

Reinforcement learning (RL) is a widely used learning paradigm for adaptive agents. Well-understood RL algorithms with good convergence and consistency properties exist. In their original form, these ... [more ▼]

Reinforcement learning (RL) is a widely used learning paradigm for adaptive agents. Well-understood RL algorithms with good convergence and consistency properties exist. In their original form, these algorithms require that the environment states and agent actions take values in a relatively small discrete set. Fuzzy representations for approximate, model-free RL have been proposed in the literature for the more difficult case where the state-action space is continuous. In this work, we propose a fuzzy approximation structure similar to those previously used for Q-learning, but we combine it with the model-based Q-value iteration algorithm. We show that the resulting algorithm converges. We also give a modif ed, serial variant of the algorithm that converges at least as fast as the original version. An illustrative simulation example is provided. [less ▲]

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See detailCaractères et propriétés de l'amidon de blé
Massaux, Carine; Lenartz, Jonathan; Bodson, Bernard ULg et al

in Les nouvelles de l'agriculture (2007), (1er trimestre 2007), 24-25

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See detailUne histoire des Lumières au pays de Liège. Livre, idées, société
Droixhe, Daniel ULg

Book published by Éditions de l'Université de Liège (2007)

Voltaire n'a pas ménagé le pays de Liège. État clérical, berceau de la Fête-Dieu, la principauté était symbolisée par l'Almanach de Mathieu Laensbergh, dont les prédictions entretenaient un fatalisme ... [more ▼]

Voltaire n'a pas ménagé le pays de Liège. État clérical, berceau de la Fête-Dieu, la principauté était symbolisée par l'Almanach de Mathieu Laensbergh, dont les prédictions entretenaient un fatalisme obscurantiste. Le présent ouvrage montre une réalité plus contrastée, où s'entrecroisent industrie de la contrefaçon littéraire, séjours d'écrivains en cavale et grandes entreprises typographiques, pour former une toile de fond sur laquelle se détache une véritable révolution des mentalités. L'impulsion fut-elle donnée par la création en 1756 du Journal encyclopédique? L'imprimeur Bassompierre avait-il auparavant ouvert la voie en publiant Diderot, l'École de la volupté du matérialiste La Mettrie ou le Code de la nature, sorte de charte pré-socialiste? Le règne de Charles d'Oultremont installe-t-il une parenthèse pieuse avant qu'apparaisse en 1772 son successeur Velbruck, franc-maçon et modèle de «prince-évêque éclairé»? Telles sont quelques-unes des questions discutées ici. Figurant parmi les capitales européennes de la contrefaçon du livre, Liège et sa filiale maastrichtoise participeront aux premières tentatives d'édition des oeuvres complètes des philosophes : Voltaire (en trente-deux volumes!), Helvétius, Montesquieu, Beaumarchais, Raynal. L'imprimeur Clément Plomteux se spécialisera dans d'ambitieux projets de totalisation du savoir, dont une refonte de l'Encyclopédie. La poésie, réveillée par le long séjour qu'effectue à Liège l'écrivain Léonard, stimulera l'idéal d'une régénération de l'homme par le retour à la nature. La Société Libre d'Émulation (1779) fournira la caisse de résonance que réclamaient un puissant souci collectif de modernité et l'avènement d'une «société des talents». S'y joignirent des revendications de justice sociale qui se lisent dans la littérature des procès opposant nobles et communautés, ou dans l'Histoire des deux Indes de Raynal et Diderot. L'«embrasement inévitable» de 1789 n'était plus loin. [less ▲]

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See detailLa question de l’Être en Égypte ancienne
Winand, Jean ULg

in Denooz, Joseph; Dortu, Véronique; Steinmetz, Rudy (Eds.) Mosaïque. Hommages à Pierre Somville (2007)

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See detailCommentary Article 32-33 Brussels I Regulation
Wautelet, Patrick ULg

in Mankowksi, Peter (Ed.) Brussels I Regulation - a Commentary (2007)

This is a commentary of two provisions to be found in the Brussels I Regulation, i.e. Article 32 and Article 33. The purpose of the commentary is to provide a clear and concise statement of the law ... [more ▼]

This is a commentary of two provisions to be found in the Brussels I Regulation, i.e. Article 32 and Article 33. The purpose of the commentary is to provide a clear and concise statement of the law, including the case law of the European Court of Justice and of the most important courts of the Member States, in relation to these two provisions. This version has been published in the first edition of the commentary. A second edition is now available (www.sellier.de). [less ▲]

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See detailArticle 37 Brussels I Regulation - a Commentary
Wautelet, Patrick ULg

in Mankowski, Peter (Ed.) Brussels I Regulation - a Commentary (2007)

] This is a commentary of one provision to be found in the Brussels I Regulation, i.e. Article 37. The purpose of the commentary is to provide a clear and concise statement of the law, including the case ... [more ▼]

] This is a commentary of one provision to be found in the Brussels I Regulation, i.e. Article 37. The purpose of the commentary is to provide a clear and concise statement of the law, including the case law of the European Court of Justice and of the most important courts of the Member States, in relation to this provision. This version has been published in the first edition of the commentary. A second edition is now available (www.sellier.de). [less ▲]

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See detailInvestigating Effect of Holidays on Daily Traffic Counts: Time Series Approach
Cools, Mario ULg; Moons, Elke; Wets, Geert

in Transportation Research Record: Journal of the Transportation Research Board (2007), 2019

In this paper, different modeling philosophies are explored in order to explain and forecast daily traffic counts. The main objectives of this study are the analysis of the impact of holidays on daily ... [more ▼]

In this paper, different modeling philosophies are explored in order to explain and forecast daily traffic counts. The main objectives of this study are the analysis of the impact of holidays on daily traffic, and the forecasting of future traffic counts. Data coming from single inductive loop detectors, collected in 2003, 2004 and 2005, were used for the analysis. The different models that were investigated showed that the variation in daily traffic counts could be explained by weekly cycles. The Box-Tiao modeling approach was applied to quantify the effect of holidays on daily traffic. The results showed that traffic counts were significantly lower for holiday periods. When the different modeling techniques were compared with respect to forecasting with a large forecast horizon, Box-Tiao modeling clearly outperformed the other modeling strategies. Simultaneous modeling of both the underlying reasons of travel, and revealed traffic patterns, certainly is a challenge for further research. [less ▲]

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See detailNumerical modelling of storage racks subjected to earthquake
Degée, Hervé ULg; Denoël, Vincent ULg

in Proceedings of COMPDYN 07, Conference on Computational Dynamics (2007)

This paper presents some aspects of the non linear dynamic time-history analysis of storage racks made of thin-walled steel products commonly used in warehouses when they are subjected to an earthquake ... [more ▼]

This paper presents some aspects of the non linear dynamic time-history analysis of storage racks made of thin-walled steel products commonly used in warehouses when they are subjected to an earthquake action. It focuses essentially on the accounting for structural non-linearities (geometric second order behavior of the structure and non-linear material be-havior of the joints) and for the possible relative motion between the rack and the stored goods that occurs as soon as the inertial force exceeds the friction resistance. In particular, it presents the algorithm used of to couple these two problems, followed by some simple appli-cations and comparisons with test results. [less ▲]

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See detailObservations of the reduction of external gill filaments during larval development in Heterotis niloticus
Hermens, Michaël; Daffé, Mamina; Vandewalle, Pierre ULg

in Belgian Journal of Zoology (2007), 137(2), 247-249

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See detailExperimental investigation on the seismic behaviour of north European masonry houses
Degée, Hervé ULg; Denoël, Vincent ULg; Candeias, P. et al

in Proceedings of SISMICA 07, Sismic Congress (2007)

This paper presents the results of shaking table tests performed on two full-scale masonry houses typical from North-European countries. The main objective of the experimental study is to assess the ... [more ▼]

This paper presents the results of shaking table tests performed on two full-scale masonry houses typical from North-European countries. The main objective of the experimental study is to assess the seismic behaviour of such houses for situations of low to moderate seismicity and to investigate the actual effect of some reinforcing details. [less ▲]

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See detailPharmacologic treatment of obesity, food intake, and reversal of metabolic disorders.
SCHEEN, André ULg; PAQUOT, Nicolas ULg

in Current Research in Nutrition & Food intake (2007), 3

The present paper is reviewing the current place of weight-reducing drugs in the overall management of overweight/obese subjects, especially those with metabolic disorders and type 2 diabetes. Anti ... [more ▼]

The present paper is reviewing the current place of weight-reducing drugs in the overall management of overweight/obese subjects, especially those with metabolic disorders and type 2 diabetes. Anti-obesity agents should be carefully evaluated in long-term (1-2 years) randomized controlled trials. Recent systematic reviews and meta-analysis assessed both the safety and efficacy of the two drugs currently used in the treatment of obesity, i.e. orlistat, a gastric and pancreatic lipase inhibitor that reduces fat absorption from the gut, and sibutramine, a combined norepinephrine and serotonin reuptake inhibitor that regulates food intake. Rimonabant, a new compound acting as selective blocker of CB1 receptors of the endocannabinoid system, raises much interest as it promotes weight reduction by a central effect and also exerts peripheral effects targeting cardiometabolic risk. Special attention will be paid to beneficial metabolic effects resulting from (even moderate) weight loss and to possible additional effects beyond weight reduction. [less ▲]

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See detailSpontaneous coronary artery dissection in an antilles man with acute inferior myocardial infarction.
Pierre-Justin, Gilbert; Pierard, Luc ULg

in International journal of cardiology (2007), 118(2), 237-40

Spontaneous coronary artery dissection is a rare cause of myocardial infarction. It has been reported mainly in young women during or after pregnancy. The diagnosis is usually confirmed at autopsy. The ... [more ▼]

Spontaneous coronary artery dissection is a rare cause of myocardial infarction. It has been reported mainly in young women during or after pregnancy. The diagnosis is usually confirmed at autopsy. The management of these patients remains controversial. We report the case of a patient who presented spontaneous dissection and was with successfully treated by thrombolysis. Clinical outcome was good. [less ▲]

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