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See detailMicrofossils’ diversity from the Proterozoic Taoudeni Basin, Mauritania
Beghin, Jérémie ULg; Javaux, Emmanuelle ULg; Houzay, Jean-Pierre et al

in European Geosciences Union General Assembly 2014 Vienna, Austria, 27 April – 02 May 2014 (abstract book) (2014, April 27)

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See detailLe secret des géants
Beckers, Albert ULg

Scientific conference (2014, April 26)

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See detailPerception of melodic accuracy in occasional singers: role of pitch fluctuations?
Larrouy, Pauline ULg; Pfordresher, Peter Q

Conference (2014, April 26)

When listening to operatic singers performances, our perception of vocal pitch accuracy is influenced by several acoustical parameters such as the fluctuation of the fundamental frequency (i.e vibrato ... [more ▼]

When listening to operatic singers performances, our perception of vocal pitch accuracy is influenced by several acoustical parameters such as the fluctuation of the fundamental frequency (i.e vibrato). In the case of occasional singers, produced pitch is likewise not constant, but the fluctuations in such cases tend not to involve vibrato but to instead involve “scoops” at the beginning and ends of tone, as well as other forms of instability. However, little is known about the fluctuations that characterize occasional singers (including poor-pitch singers) and to what degree these fluctuations influence perception of pitch accuracy. We report results of ongoing research designed to address these issues. First, we describe a descriptive model used to identify perturbations of F0 in occasional singers that differ between accurate and poor-pitch singers. Next, we report results of recent experiments that explore the influence of the pitch fluctuations described by the model on the perception of pitch accuracy. [less ▲]

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See detailL’artillerie dans le discours politique aux confins des XVe–XVIe siècles : le cas français
Dumont, Jonathan ULg

Scientific conference (2014, April 26)

Detailed reference viewed: 11 (0 ULg)
See detailRaconter la guerre ou sa relation dans quelques « lettres de batailles » du XVe siècle
Marchandisse, Alain ULg

Scientific conference (2014, April 26)

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See detailDiagrams for ampliative reasonings
Leclercq, Bruno ULg

Conference (2014, April 26)

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See detailExemples de séquences didactiques axées sur différents genres : introduction
Simons, Germain ULg

Conference (2014, April 25)

Cette brève communication visait à introduire et à contextualiser cinq séquences didactiques articulées autour de la notion de genre. Ces séquences, conçues et mises en pratique par d'anciens étudiants de ... [more ▼]

Cette brève communication visait à introduire et à contextualiser cinq séquences didactiques articulées autour de la notion de genre. Ces séquences, conçues et mises en pratique par d'anciens étudiants de l'ULg dans le cadre de l'AESS/du Master à finalité didactique ou du CAPAES, portaient sur le débat régulé (anglais), le reader digest (anglais et néerlandais), l'entretien d'embauche (espagnol), la Kurzgeschichte (allemand), le Krimi (allemand/langue maternelle). Cette introduction a également permis de rappeler les grandes phases du canevas didactique par situation-problème. [less ▲]

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See detailLes genres en didactique des langues étrangères et en littérature pour la jeunesse. Introduction à la journée du 25 avril 2014.
Simons, Germain ULg; Delbrassine, Daniel ULg

Conference (2014, April 25)

Dans cette brève communication introductive, nous avons d'abord expliqué les objectifs de cette journée sur le genre dans le domaine de la didactique des langues étrangères et de la littérature pour la ... [more ▼]

Dans cette brève communication introductive, nous avons d'abord expliqué les objectifs de cette journée sur le genre dans le domaine de la didactique des langues étrangères et de la littérature pour la jeunesse. Nous avons ensuite dévoilé le programme de la journée. Enfin, nous avons brièvement présenté les deux orateurs extérieurs, Mme M. Jacquin (Université de Genève) et M. H.-H. Ewers (Université de Francfort). [less ▲]

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See detailIntroduction aux travaux de Luciano Del Pistoia : corps et psychose
Englebert, Jérôme ULg

Scientific conference (2014, April 25)

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See detailBrown rust disease control in winter wheat: II. Exploring the optimization of fungicide sprays through a decision support system
El Jarroudi, Moussa ULg; kOUADIO, Louis; Giraud, Frédéric et al

in Environmental Science & Pollution Research (2014), 21(4), 4809-4818

A decision support system (DSS) involving an approach for predicting wheat leaf rust (WLR) infection and progress based on night weather variables (i.e., air temperature, relative humidity, and rainfall ... [more ▼]

A decision support system (DSS) involving an approach for predicting wheat leaf rust (WLR) infection and progress based on night weather variables (i.e., air temperature, relative humidity, and rainfall) and a mechanistic model for leaf emergence and development simulation (i.e., PROCULTURE) was tested in order to schedule fungicide time spray for controlling leaf rust progress in wheat fields. Experiments including a single fungicide treatment based upon the DSS along with double and triple treatment were carried out over the 2007–2009 cropping seasons in four representative Luxembourgish wheat field locations. The study showed that the WLR occurrences and severities differed according to the site, cultivar, and year. We also found out that the single fungicide treatment based on the DSS allowed a good protection of the three upper leaves of susceptible cultivars in fields with predominant WLR occurrences. The harvested grain yield was not significantly different from that of the double and triple fungicide-treated plots (P < 0.05). Such results could serve as basis or be coupled to cost-effective and environmentally friendly crop management systems in operational context. [less ▲]

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See detailPoly(methyl methacrylate)/graphene oxide nanocomposites by a precipitation polymerization process and their dielectric and rheological characterization
Thomassin, Jean-Michel ULg; Trifkovic, Milana; Alkarmo, Walid et al

in Macromolecules (2014), 47(6), 2149-2155

We report a method for achieving controlled dispersion of graphene oxide (GO) in poly(methyl methacrylate) (PMMA) via the precipitation polymerization process in a water/ methanol mixture. GO acts as a ... [more ▼]

We report a method for achieving controlled dispersion of graphene oxide (GO) in poly(methyl methacrylate) (PMMA) via the precipitation polymerization process in a water/ methanol mixture. GO acts as a surfactant and adsorbs on the interface between polymerized PMMA particles and solvent mixture. Scanning electron and transmission electron microscopy confirmed that the precipitate consists of polymer particles (<1 μm) surrounded by the GO sheets. Compression molding of the precipitate yields a polymer nanocomposite with the GO organized into a regularly spaced 3D network which percolates at 0.2 wt % GO. Simple thermal reduction of the GO sheets dispersed in PMMA at relatively low temperature (210 °C) achieved electrical conductivity higher than 10−2 S/m at 0.4 wt % of GO. Parallel dielectric and rheological characterization demonstrated that the thermal reduction is a quite fast process without significant degradation of the polymer. The study should open up new opportunities in the design of GO-based polymer nanocomposites. [less ▲]

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See detail"Types de productions langagières" et canevas de séquences didactiques en langues modernes
Simons, Germain ULg; Pagnoul, Pierre ULg

Conference (2014, April 25)

Cette communication était structurée en quatre grands volets. Dans le premier, nous avons exploré la notion de "genre" et celle de "type de production langagière" ainsi que leur présence ou absence dans ... [more ▼]

Cette communication était structurée en quatre grands volets. Dans le premier, nous avons exploré la notion de "genre" et celle de "type de production langagière" ainsi que leur présence ou absence dans les prescrits légaux (référentiels, programmes, outils d'évaluation) en langues modernes en Fédération Wallonie-Bruxelles mais aussi dans le Cadre européen commun de référence pour les langues. Dans le deuxième volet, nous avons présenté et analysé le document "Familles de tâches en langues modernes" où apparaît, pour la première fois, la notion de "types de productions langagières à dominante... descriptive/informative, incitative/injonctive, narrative et argumentative", et avons tenté une clarification opérationnelle des notions de genre et de productions langagières en didactique des langues modernes. Dans le troisième volet, nous avons présenté deux canevas didactiques, un linéaire et l'autre par situation-problème, et avons montré en quoi ce dernier se prêtait particulièrement bien au travail sur le genre. Le concept de "noticing the gap" a été ici convoqué et nous avons fourni un exemple de DEBAT organisé avec la technique dite de "l'aquarium", procédé didactique destiné à mettre tous les élèves à la tâche. Enfin, dans le quatrième et dernier volet, nous avons évoqué les problèmes liés à ce champ de recherche sur le genre et avons proposé quelques pistes de solutions. Différentes références bibliographiques relatives aux quatre parties de l'exposé ont également été proposées au terme de la communication. [less ▲]

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See detailLa démarche RAI, historique, philosophie, outils
Delye, Samuel ULg; Maggi, Patrick ULg; Gosset, Christiane ULg

Conference (2014, April 25)

Detailed reference viewed: 14 (5 ULg)
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See detailAltered Desferrioxamine-mediated Iron Utilization is a Common Trait of bald Mutants of Streptomyces coelicolor
Lambert, Stéphany ULg; Traxler, Matthew F; Craig, Matthias et al

in Metallomics (2014)

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See detailTowards an Archaeological Information System: improving the core data model
Van Ruymbeke, Muriel ULg; Carré, Cyril ULg; Delfosse, Vincent ULg et al

Conference (2014, April 25)

Grounded on archaeological information modeling works undertaken at the Geomatics Unit of the University of Liege, this paper goes a step further in handling time and function imperfection, interpretative ... [more ▼]

Grounded on archaeological information modeling works undertaken at the Geomatics Unit of the University of Liege, this paper goes a step further in handling time and function imperfection, interpretative sequences and people interacting with historical objects. Designed in 2011, the initial model already gathered both geometrical and historical information. It was partially based on the urban data standard City GML mainly for interoperability purposes. Its specificity, the version concept, allowed multiple geometries experiments. That property enabled us to handle geometrical ambiguity and incompleteness. To validate this model, and in a showcase purpose, a first prototype has been realized. One year later this prototype’s model has been improved to manage in a better way all objects’ versions and possible representations. Until now, this model integrates and manages imperfect archaeological data but only partially: the version concept being only dedicated to express geometric ambiguity or imprecision. Henceforth, with the version notion widening, we propose to encompass function and time imperfection as well. It is an important progress because on an archaeological point of view, time and function are quite generally incomplete, uncertain, imprecise or contradictory. Another enhancement must be highlighted: the agent enlistment. Historical characters, on one hand, and contemporaneous people (like authors, archaeologists etc.) on another hand are key elements of archaeological game pieces. Finally, we will describe the way of structuring versions into interpretative sequences. With those improvements, we wish to carry on feeding the scientific debate as much as drafting Archaeological Information Systems. [less ▲]

Detailed reference viewed: 57 (25 ULg)
See detailHow to locate intermodal terminals for achieving economic and environmental competitiveness?
Mostert, Martine ULg; Limbourg, Sabine ULg

Conference (2014, April 25)

Europe has a strong commitment to the development of competitive and sustainable transportation. An intermediate objective cited in the “White Paper” is to shift 30% of 300 km and above road freight ... [more ▼]

Europe has a strong commitment to the development of competitive and sustainable transportation. An intermediate objective cited in the “White Paper” is to shift 30% of 300 km and above road freight transportation to more environmentally-friendly modes of transport such as rail and water by 2030. Improving and expanding the intermodal network is one way to achieve this goal. However, intermodal transport requires intermodal terminals where the transfer from one mode to another can occur. The location of those terminals is of strategic importance for the competitiveness of intermodal transport. The objective of this paper is therefore to develop a network design model which allows the optimal location of intermodal terminals to be determined, subject to both economic and environmental efficiency. Three possible combinations are considered: (i) Road-only, (ii) Intermodal transport using road (drayage) and rail (long-haul) and (iii) Intermodal transport using road (drayage) and inland waterways (long-haul). External costs are also included in the analysis, i.e. costs that are generated by an economic agent but supported by other agents of the society. This strategy is in line with the willingness of Europe to internalize external costs. The developed model can be used to test how modal split is influenced by the undertaken policies, such as internalizing external costs in the transportation costs. Tests are carried out on the case study of Belgium. [less ▲]

Detailed reference viewed: 20 (3 ULg)
See detailNanostructured catalysts by sol-gel process
Lambert, Stéphanie ULg; Heinrichs, Benoît ULg

Conference (2014, April 25)

Detailed reference viewed: 39 (8 ULg)
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See detailIntroduction aux deux journées d'études : "Questions de genres"
Letawe, Céline ULg; Simons, Germain ULg

Conference (2014, April 24)

Lors de cette brève introduction, nous avons a) rappelé les objectifs de l'Entité de recherche structurelle en Langues et littératures modernes de l'ULg ; b) fourni quelques éléments généraux sur l'objet ... [more ▼]

Lors de cette brève introduction, nous avons a) rappelé les objectifs de l'Entité de recherche structurelle en Langues et littératures modernes de l'ULg ; b) fourni quelques éléments généraux sur l'objet de recherche "genre" ; c) présenté le programme complet des deux journées dans les quatre grands domaines : littérature (en ce compris la littérature pour la jeunesse), linguistique, traduction, didactique, et d) remercié les différents partenaires qui ont contribué à la réalisation de ce symposium. [less ▲]

Detailed reference viewed: 24 (6 ULg)
Peer Reviewed
See detailPredicting Grain Protein Content of Winter Wheat
Mansouri, Majdi ULg; Dumont, Benjamin ULg; Destain, Marie-France ULg

in ESANN 2014 Proceedings (2014, April 24)

Detailed reference viewed: 22 (9 ULg)