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See detailPhase Transformations and Crack Initiation in a High-Chromium Cast Steel Under Hot Compression Tests
Tchuindjang, Jérôme Tchoufack ULg; Neira Torres, Ingrid; Fores, Paulo et al

in Journal of Materials Engineering and Performance (2015), 24(5), 2025-2041

The mechanical behavior of the fully austenitic matrix of high-chromium cast steel (HCCS) alloy is determined by external compression stress applied at 300 and 700 C. The microstructure is roughly ... [more ▼]

The mechanical behavior of the fully austenitic matrix of high-chromium cast steel (HCCS) alloy is determined by external compression stress applied at 300 and 700 C. The microstructure is roughly characterized toward both optical and scanning electron microscopy analyses. Dilatometry is used during heating from room temperature up to austenitization to study the solid-state phase transformations, precipitation, and dissolution reactions. Two various strengthening phenomena (precipitation hardening and stress-induced bainite transformation) and one softening mechanism (dynamic recovery) are highlighted from compression tests. The influence of the temperature and the carbide type on the mechanical behavior of the HCCS material is also enhanced. Cracks observed on grain boundary primary carbides allow establishing a rough damage model. The crack initiation within the HCCS alloy is strongly dependent on the temperature, the externally applied stress, and the matrix strength and composition. [less ▲]

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See detailGenetic Control of Flowering Time in Arabidopsis: an Interactive Database
Bouché, Frédéric ULg; Lobet, Guillaume ULg; Tocquin, Pierre ULg et al

Poster (2015, March 12)

The transition to flowering is an essential step of the plant life cycle that is tightly controlled by both endogenous and environmental cues. Its regulation is extremely complex and involves hundreds of ... [more ▼]

The transition to flowering is an essential step of the plant life cycle that is tightly controlled by both endogenous and environmental cues. Its regulation is extremely complex and involves hundreds of genes that are part of highly interconnected pathways. Our knowledge of the molecular mechanisms governing the floral induction of Arabidopsis thaliana increases quickly and a significant number of reviews are published every year on this topic. However, most of them focus on a single pathway without highlighting the interconnections existing between them. Furthermore, those reviews become rapidly outdated, since our comprehension of the genetic control of flowering time evolves continuously. Hence, we believe that the current landscape of flowering time research in Arabidopsis misses an exhaustive repository of the genes involved in the control of flowering and their regulatory pathways. Here, we present a new interactive resource built around a curated database of the flowering time genes that brings together multiple pieces of information such as their function, the flowering time phenotype of mutants and overexpressing lines, the related key publications, etc. Our website thus gives access to a curated and exhaustive list of the genes involved in the regulation of flowering time in Arabidopsis as well as the regulatory pathways controlling their expression. Because of its flexibility, the database is highly dynamic and will be periodically updated with the future breakthroughs in this domain. [less ▲]

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See detailLara Croft. Avatar, femme et icône du jeu vidéo
Barnabé, Fanny ULg

Conference given outside the academic context (2015)

La séduisante archéologue Lara Croft, protagoniste de la série de jeux Tomb Raider, est aujourd'hui l'une des icônes les plus célèbres du jeu vidéo, si bien qu'elle a même dépassé les limites de ce médium ... [more ▼]

La séduisante archéologue Lara Croft, protagoniste de la série de jeux Tomb Raider, est aujourd'hui l'une des icônes les plus célèbres du jeu vidéo, si bien qu'elle a même dépassé les limites de ce médium pour se faire connaître à un public élargi (à travers des adaptations au cinéma, en comics ou encore à travers des publicités). Toutefois, ce personnage est aussi une figure complexe qui a été reçue de manières très diverses : tantôt envisagée comme un symbole féministe (Lara Croft est une héroïne forte et indépendante, loin de la demoiselle en détresse à laquelle se cantonnaient généralement les premiers jeux vidéo), elle a aussi pu être interprétée comme une représentation caricaturale et réifiante de la femme. C'est donc d'un personnage chargé de contradictions que cette conférence propose de faire le portrait. [less ▲]

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See detailCerebellar hemorrhage : a rare condition in the term infant
MERINDOL, Ninon; BROUX, Isabelle ULg; DECORTIS, Thierry et al

Poster (2015, March 12)

Cerebellar hemorrhage is a rare condition in full-term newborns. Early diagnosis based on the identification of risk factors, particular clinical signs and correct medical imaging is primordial to ... [more ▼]

Cerebellar hemorrhage is a rare condition in full-term newborns. Early diagnosis based on the identification of risk factors, particular clinical signs and correct medical imaging is primordial to optimize the immediate treatment and to assess the long term prognosis. [less ▲]

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See detailPrevención cuaternaria y Clasificación Internacional de Atención Primaria, segunda edición.
Jamoulle, Marc ULg

Conference (2015, March 12)

Présentation des concepts de prevention quatenaire et de classification en soins primaires à la demande des autorités de l'université Isalud de Buenos Aires

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See detailSNOMED GP/FP RefSet and ICPC mapping Project 2010 -2015. Codificación y clasificación de diagnósticos en atención primaria y prevención cuaternaria.
Jamoulle, Marc ULg

Conference (2015, March 11)

Présentation des travaux du groupe de travail du Comité International de Classification de la Wonca sur la constitution d'un mappage entre la terminologie SNOMED-CT et la Classification Internationale de ... [more ▼]

Présentation des travaux du groupe de travail du Comité International de Classification de la Wonca sur la constitution d'un mappage entre la terminologie SNOMED-CT et la Classification Internationale de Soins Primaire ICPC-2 [less ▲]

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See detailLe métier de chercheur : Des parcours singuliers à la carrière traditionnelle profilée
Remy, Céline ULg; Balon, Floriane

Conference (2015, March 11)

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See detailClimate change : Impacts of shoreline erosion in developing countries
Ozer, Pierre ULg; Lemena, Kidja Hermann

Conference (2015, March 11)

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See detailElastic and inelastic transmission in guided atom lasers: A truncated Wigner approach
Dujardin, Julien ULg; Argüelles, Arturo; Schlagheck, Peter ULg

in Physical Review A (2015), 91

We study the transport properties of a Bose-Einstein condensate formed by an ultracold gas of bosonic atoms that is coupled from a magnetic trap into a one-dimensional waveguide. Our theoretical approach ... [more ▼]

We study the transport properties of a Bose-Einstein condensate formed by an ultracold gas of bosonic atoms that is coupled from a magnetic trap into a one-dimensional waveguide. Our theoretical approach to tackling this problem is based on the truncated Wigner method for which we assume the system to consist of two semi-infinite noninteracting leads and a finite interacting scattering region with two constrictions modeling an atomic quantum dot. The transmission is computed in the steady-state regime and we find a good agreement between truncated Wigner and matrix-product state calculations. We also identify clear signatures of inelastic resonant scattering by analyzing the distribution of energy in the transmitted atomic-matter wave beam. [less ▲]

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See detailThe Role of Government in Path- Dependent Development of SME Sector in Ukraine
Shutyak, Yuliya; Van Caillie, Didier ULg

in Journal of East-West Business (2015), 21(1), 67-90

This article studies evolution of governmental support for SME development from the times of Perestroika until 2013. Guided by institutional theory, the article revises SME development in Ukraine and ... [more ▼]

This article studies evolution of governmental support for SME development from the times of Perestroika until 2013. Guided by institutional theory, the article revises SME development in Ukraine and explains government actions through the prism of path dependence. The analysis is conducted within a matrix logic resuming the data by several periods of time corresponding to changes in the Ukrainian government and being juxtaposed to the main stages of the path dependence analytical framework. The study reveals main trends in governmental support for small business and main challenges remaining nowadays. [less ▲]

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See detailLa dette wallonne: développements récents
Piron, Damien ULg; Bayenet, Benoît ULg

Conference (2015, March 11)

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See detailEtude Quatuor
Tostivint, Isabelle; Castiglione, Vincent ULg

Conference (2015, March 11)

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See detailGreen strategies applied to the synthesis of polymer particles for protein delivery
Alaimo, David ULg

Doctoral thesis (2015)

With the recent progresses in biotechnology that enable the production of various peptides and proteins, there is a growing interest for their use as therapeutic agents. Indeed, since the introduction of ... [more ▼]

With the recent progresses in biotechnology that enable the production of various peptides and proteins, there is a growing interest for their use as therapeutic agents. Indeed, since the introduction of the first recombinant therapeutic protein, human insulin, 30 years ago, the interest for pharmaceutical proteins have increased remarkably for various therapeutic purposes. Nevertheless, several challenges still remain such as the preservation of the quite fragile complex protein structure of these proteins to warrant their therapeutic activity after storage and administration into the body. Protecting them against chemical/enzymatic degradation from the environment is a prerequisite to efficiency. To reach this goal and prolong/trigger the release of therapeutic proteins in the body, different carriers were developed and investigated. Among them, polymer nanogels and microcpasules appear as quite promising systems. The thesis focuses on the preparation of novel carriers for protein delivery while using “green” strategies. More precisely, protein carriers are produced by two approaches. The first one investigates the preparation of hydrophilic nanogels by free radical dispersion polymerization of hydroxyethyl methacrylate (HEMA) in supercritical carbon dioxide. The development of dedicated stabilizers efficient in this green medium is thus first considered particularly focussing on the study of the influence of the stabilizer architecture. Then, the optimized candidate is used for the size- controlled nanogels preparation. A strategy allowing the removal of the hydrophobic component of the stabilizer is then investigated based on the synthesis of a photocleavable copolymer. The performances of these as-obtained novel nanogels to load and release proteins is then investigated. In a second approach, the synthesis of protein-loaded microcapsules offering a tunable permeability in response to the external glucose concentration is investigated. For that purpose, the layer-by-layer assembly of dedicated copolymer polyelectrolytes including glucose-sensitive diol/boronic acid bonds was performed on the surface of protein-loaded calcium carbonate particles. After dissolution of the calcium salt, microcapsules able to tune the release of the encapsulated protein in response to glucose concentration are obtained. [less ▲]

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See detailFamilles de tâches en langues modernes : pistes de réflexion et propositions d'outils
Simons, Germain ULg; Pagnoul, Pierre ULg

Conference (2015, March 10)

Cette communication aborde la notion de "familles de tâches" en langues modernes, qui est centrale à l'approche communicative et à l'approche actionnelle préconisée par le CECRL. Dans cette communication ... [more ▼]

Cette communication aborde la notion de "familles de tâches" en langues modernes, qui est centrale à l'approche communicative et à l'approche actionnelle préconisée par le CECRL. Dans cette communication, nous montrons en quoi le document "Familles de tâches en langues modernes" proposé en FWB est important et novateur, mais aussi perfectible. Après avoir présenté le document et une nouvelle modélisation de celui-ci, nous proposons deux dimensions supplémentaires susceptibles d'optimiser le regroupement de tâches complexes en "familles". Nous présentons ensuite des outils d'observation et d'évaluation d'une tâche complexe portant sur un débat de société régulé en anglais/langue étrangère. Des extraits vidéo d'une séquence didactique expérimentale sont présentés et analysés. [less ▲]

Detailed reference viewed: 38 (7 ULg)