References of "2012"
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See detailNon-conventional Political Participation as an outcome of Discrimination Feeling
Gavray, Claire ULiege; Born, Michel ULiege

Scientific conference (2012, April 17)

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See detailHistoire d'un ElDorado - Cinq siècles d'exploration du sous-sol sud-américain
Pirard, Eric ULiege

Scientific conference (2012, April 17)

Une présentation du rapport de l'Amérique Latine au richesses de son sous-sol, depuis la découverte de l'Amérique jusqu'à aujourd'hui.

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See detailRaman spectroscopy, a tool for biochemical applications
Malherbe, Cédric ULiege

Scientific conference (2012, April 17)

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See detailConstruire son langage, une nouvelle conception de l’acquisition langagière: données développementales et approche en pathologie langagière
Leroy, Sandrine ULiege; Maillart, Christelle ULiege

Scientific conference (2012, April 17)

Cette conférence traite des répercussions sur notre pratique logopédique d’une nouvelle conception du développement langagier. Celle-ci s’intéresse à la construction du langage oral chez l’enfant. Elle ... [more ▼]

Cette conférence traite des répercussions sur notre pratique logopédique d’une nouvelle conception du développement langagier. Celle-ci s’intéresse à la construction du langage oral chez l’enfant. Elle considère que l’enfant est l’acteur de son développement langagier ; il construit progressivement son langage à partir de ses propres productions antérieures. Cette nouvelle conception issue de la linguistique cognitivo-fonctionnelle s’oppose donc à la conception innéiste (ou générativiste) qui considère que l’enfant dispose de connaissances langagières innées. Cette approche constructiviste nous offre des perspectives théoriques et thérapeutiques très intéressantes pour étudier la pathologie langagière. Des données récentes récoltées auprès d’enfants tout-venant sont présentées. Par la suite, nous abordons plus spécifiquement la dysphasie. Nous tentons de comprendre comment ces théories permettent d'expliquer les difficultés langagières des enfants dysphasiques. Enfin, nous envisageons quels sont les éléments dont il faut tenir compte dans notre pratique logopédique, à la lumière de cette nouvelle conception développementale. [less ▲]

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See detail"Enjeux et défis de l'enseignement des langues dans le contexte de la mondialisation"
Defays, Jean-Marc ULiege; Maréchal, Marielle ULiege; Louis, Vincent

Scientific conference (2012, April 17)

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See detailDu diagnostic à l'intervention en entreprise: quelle réalité, quelles limites?
Hansez, Isabelle ULiege

Conference (2012, April 17)

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See detailCarrier and aberrations removal in interferometric fringe projection profilometry
Blain, Pascal ULiege; Michel, Fabrice; Renotte, Yvon ULiege et al

in Gorecki, Christophe; Asundi, Anand K.; Osten, Wolfgang (Eds.) Optical Micro- and Nanometrology IV (SPIE proceedings vol.8430) (2012, April 17)

A profilometer which takes advantage of polarization states splitting technique and monochromatic light projection method as a way to overcome ambient lighting for in-situ measurement is under development ... [more ▼]

A profilometer which takes advantage of polarization states splitting technique and monochromatic light projection method as a way to overcome ambient lighting for in-situ measurement is under development [1, 2]. Because of the Savart plate which refracts two out of axis beams, the device suffers from aberrations (mostly coma and astigmatism). These aberrations affect the quality of the sinusoidal fringe pattern. In fringe projection profilometry, the unwrapped phase distribution map contains the sum of the object’s shape-related phase and carrier-fringe-related phase. In order to extract the 3D shape of the object, the carrier phase has to be removed [3, 4]. An easy way to remove both the fringe carrier and the aberrations of the optical system is to measure the phases of the test object and to measure the phase of a reference plane with the same set up and to subtract both phase maps. This time consuming technique is suitable for laboratory but not for industry. We propose a method to numerically remove both the fringe carrier and the aberrations. A first reference phase of a calibration plane is evaluated knowing the position of the different elements in the set up and the orientation of the fringes. Then a fitting of the phase map by Zernike polynomials is computed [5]. As the triangulation parameters are known during the calibration, the computation of Zernike coefficients has only to be made once. The wavefront error can be adjusted by a scale factor which depends on the position of the test object. [less ▲]

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See detailTHE RESPONSE OF ACETOBACTER SENEGALENSIS TO STRESSORS: A STUDY TOWARDS IMPROVEMENT OF VINEGAR STARTER PRODUCTION
Shafiei, Rasoul ULiege; Thonart, Philippe ULiege

in THE RESPONSE OF ACETOBACTER SENEGALENSIS TO STRESSORS: A STUDY TOWARDS IMPROVEMENT OF VINEGAR STARTER PRODUCTION (2012, April 17)

Acetic acid bacteria encounter various harsh conditions during acetic acid fermentation. Ethanol as the main substrate and acetic acid as the major product at low pH can influence deeply on the cellular ... [more ▼]

Acetic acid bacteria encounter various harsh conditions during acetic acid fermentation. Ethanol as the main substrate and acetic acid as the major product at low pH can influence deeply on the cellular functions of acetic acid bacteria. In previous studies in CWBI, Acetobacter senegalensis was used for production of dried vinegar starters; however the impact of stressors (ethanol and acetic acid) on A. senegalensis remained unclear. In this study, different techniques such as flow cytometry, culturability on solid medium and 2-DiGE were used comparatively to investigate the effect of carbon sources of inoculum media on the tolerance of A. senegalensis to stressors. Analysis of respiration system by flow cytometric methods showed that the presence of 2% (v/v) acetic acid in inoculum medium, in one hand, causes 80% of cells to continue to do respiration after a sudden exposure to 1- 3% (v/v) acetic acid in stress media while 89.7% of cells grown in glucose appeared as dead cells after an abrupt exposure to 3%(v/v) of acetic acid. On the other hand, 59.2% and 49.33% of cells grown in the presence of 2% (v/v) of acetic acid could maintain their entire membrane integrity after exposure to 1% and 3% (v/v) of acetic acid, respectively. Inoculum medium contained 5% (v/v) of ethanol as a carbon source enabled about 90% of cells to keep their growing capacities after a sudden exposure to 3% acetic acid. In contrast, just 40% of cells grown in glucose as a carbon source maintained their culturability on solid medium after exposure to 1% acetic acid. A similar profile of culturability was observed for the cells grown in 5% (v/v) ethanol or 2% (v/v) of acetic acid. A proteomic approach (2-DiGE) was used to analyze proteins expressed in the presence of different carbon sources. Differentially expressed proteins were mainly associated with energy metabolism, carbohydrate metabolisms, folding, sorting and degradation processes. The relative abundance of proteins was extensively different for cell grown in glucose compared with protein contents of cells grown in ethanol or acetic acid. In conclusion, production of a cost effective vinegar starter needs a qualified biomass which tolerates ethanol and acetic acid. Tolerance of A. senegalensis to acetic acid depends to a great extent on the composition of the medium which cells grow in. In spite of low adaption to acetic acid for cell grown in glucose, using ethanol or acetic acid in inoculum media renders a physiological state in A. senegelensis which enables it to cope with higher concentration of acetic acid readily, this biomass has a potential to be used as a starter. [less ▲]

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See detailPerturbateurs endocriniens à effet réprotoxique
Charlier, Corinne ULiege

Scientific conference (2012, April 17)

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See detailMaterial Aspects of Bone Tissue Engineering
Ozhukil Kollath, Vinayaraj ULiege; Cloots, Rudi ULiege

Diverse speeche and writing (2012)

Bone tissue engineering is a highly studied topic in material science in the recent decades. Basic principles of chemistry and biology along with advanced material science techniques should be used in ... [more ▼]

Bone tissue engineering is a highly studied topic in material science in the recent decades. Basic principles of chemistry and biology along with advanced material science techniques should be used in order to elucidate the parameters which may influence the bone tissue growth on artificial implants. Progress has been made to an advanced level but still there is room for improvements. Especially in case of large bone defects, finding a ‘universal’ replacement implant is difficult. Patient specific data have to be taken in to account to get a good osteointegration. Metal and ceramic implants are commonly tested in case of large bone defects, but a good mimic of natural bone is hard due to various reasons. However fine tuning these materials and combination of these materials are finding good results. Addition of polymer materials in such implants is a recent effective attempt. Different combinations of these materials along with functionalisation using bioactive molecules make the bone tissue engineering nearly perfect. This presentation will discuss about the recent trends in the materials used in bone tissue engineering. [less ▲]

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See detailCassius Dio LXXIX,3,4, Caius Fabius Agrippinus und die urbane Parzelle der Schola del Traiano in Ostia
Morard, Thomas ULiege

Scientific conference (2012, April 17)

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See detailMethod for manufacturing a junction
Nguyen, Ngoc Duy ULiege; Loo, Roger; Caymax, Matty

Patent (2012)

The present invention relates to a semiconductor device comprising a homojunction or a heterojunction with a controlled dopant (concentration) profile and a method of making the same. Accordingly, one ... [more ▼]

The present invention relates to a semiconductor device comprising a homojunction or a heterojunction with a controlled dopant (concentration) profile and a method of making the same. Accordingly, one aspect of the invention is a method for manufacturing a junction comprising forming a first semiconductor material comprising a first dopant having a first concentration and thereupon forming a second semiconductor material comprising a second dopant, having a second concentration thereby forming a junction, and depositing by Atomic Layer Epitaxy or Vapor Phase Doping at least a fraction of a monolayer of a precursor suitable to form the second dopant on the first semiconductor material, prior to forming the second semiconductor material, thereby increasing the second concentration of the second dopant at the junction. [less ▲]

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See detailLa régulation des émotions
Desseilles, Martin ULiege

Scientific conference (2012, April 16)

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See detailTraffic Situation Assessment and Intervention Strategy of a Collision Avoidance System based on Galileo Satellite Positioning
Christen, Fréderic ULiege; Ewald, Christian; Eckstein, Lutz et al

E-print/Working paper (2012)

Nowadays, collision avoidance systems (CAS) are an intensive research topic since the majority of all traffic accidents are collisions that are caused due to inattention or unadjusted driving behavior of ... [more ▼]

Nowadays, collision avoidance systems (CAS) are an intensive research topic since the majority of all traffic accidents are collisions that are caused due to inattention or unadjusted driving behavior of the driver. Up to date prototypic CAS are based on on-board environmental sensors, such as camera or radar systems, that scan the vehicle's surrounding environment in order to assess the situation's hazardousness. The functionality of the used sensors under varying environmental conditions and the limited sensor covering area require an enormous effort to ensure a reliable detection of obstacles, and thus limit the application of the systems. In order to expand the operating field of such systems, a Galileo-based CAS will be developed within the project ‘Galileo above’ (application centre for ground based traffic). This advanced driver assistance system (ADAS) detects surrounding vehicles that are on collision course and reacts autonomously, if the driver does not intervene to avoid the crash. For this purpose the system initiates an emergency stop and/or an emergency steering maneuver. For the development of the CAS the Galileo test centre automotiveGATE in Aldenhoven, Germany will be used. On this test area pseudolites will be installed which provide Galileo-like navigation signals. Thus, the development respectively tuning of Galileo-based vehicle systems will be enabled, so as to have them available on the market when the Galileo satellite system reaches its full operational capability (FOC). The focus of this paper is on the traffic situation assessment and intervention strategy of the CAS. This includes the perception and analysis of the driving situation, the detection of potential collision situation, the definition of an adequate system reaction and the planning of an evasion trajectory. Furthermore, an outlook on the model predictive control for longitudinal and/or lateral control (braking and/or steering maneuver) will be presented. [less ▲]

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See detailInterview à RTL - Radio sur le thème "Les 50 ans de la PAC"
Burny, Philippe ULiege

Diverse speeche and writing (2012)

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See detailThe inseminating bull and plasma pregnancy-associated glycoprotein levels were related to peripheral leukocyte counts during the late pregnancy/early postpartum period in high-producing dairy cows.
Abdelfatah-Hassan, A.; Almeria, S.; Serrano, B. et al

in Theriogenology (2012), 77(7), 1390-1397

The interest in the immunology and endocrinology aspects of the peripartum in dairy cows has been increasing in the last years, since the animal status during the pre- and postpartum period determines the ... [more ▼]

The interest in the immunology and endocrinology aspects of the peripartum in dairy cows has been increasing in the last years, since the animal status during the pre- and postpartum period determines the subsequent productive and reproductive performance of the animal. At parturition, a drop in the immune functions of the peripheral blood polymorph-nuclear cells (PMN) was observed after a peak of Pregnancy-Associated Glycoproteins (PAGs) and recently, the inseminating bull was found to affect the plasma levels of bovine Pregnancy-Associated Glycoproteins (bovine PAGs) in the pregnant Holstein-Friesian dairy cows. The present work was aimed to determine whether changes in leukocyte counts during the peripartum, indicative of the animal immune status, could be related to the inseminating bull and to the levels of plasma pregnancy-associated glycoproteins (PAGs). Ninety six clinically healthy, single pregnant cows were selected in a commercial dairy herd. Six blood samples (four prepartum and two postpartum) were obtained every two weeks, and total and differential blood cell counts were analyzed. Based on procedures of General Linear Model analysis of variance for repeated measures, the inseminating bull affected counts of total leukocytes and lymphocytes (P<0.001; between-subject effects) throughout the peripartum period. In addition, cows with high plasma levels of PAGs (>900 ρg/µL) on Day 262-268 of gestation had higher numbers of total leukocytes and neutrophils throughout the peripartum period (P<0.001; between-subject effects). Young animals (≤ 1 lactation) had higher total leukocyte and lymphocytes counts than older cows (two or more lactations) throughout the study period. These results showed a clear relationship between the inseminating bull and plasma PAG levels and peripheral leukocyte counts during the peripartum period of dairy cows. [less ▲]

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