References of "2010"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailDéveloppement d'un modèle tertiaire pour la prédiction de la croissance de Listeria monocytogenes et Salmonella spp. dans la viande hachée de porc
Delhalle, Laurent ULg; Adolphe, Ysabelle ULg; Jasick, Adeline ULg et al

in Viandes et Produits Carnés (2010), Hors-série

Tertiary models are proposed in order to predict the growth of Listeria monocytogenes and Salmonella spp. in pork minced meat packaged under stretch film. The models have been calculated from challenge ... [more ▼]

Tertiary models are proposed in order to predict the growth of Listeria monocytogenes and Salmonella spp. in pork minced meat packaged under stretch film. The models have been calculated from challenge-tests at 8°C (L. monocytogenes) and 12°C (Salmonella), the meat being artificially contaminated at 2 log cfu pathogen/g. In a second step, they have been validated at 5, 8 and 10°C for L. monocytogenes (r² : 0.94, 0.98 and 0.95) and 8, 10 and 12°C for Salmonella (r³ : 0.80, 0.92 and 0.98). [less ▲]

Detailed reference viewed: 105 (12 ULg)
Full Text
Peer Reviewed
See detailMicrotomographic investigation of a yeast grain porous structure
Debaste, Frédéric; Léonard, Angélique ULg; Halloin, Véronique et al

in Journal of Food Engineering (2010), 97

Detailed reference viewed: 38 (7 ULg)
Full Text
See detailPrediction of Stiction in Microswitch Systems
Wu, Ling ULg; Rochus, Véronique ULg; Noels, Ludovic ULg et al

in EUROSIME 2010 (2010)

Stiction is a major failure mode of MEMS as microscopic structures tend to adhere to each other when their surfaces enter into contact. Although increasing the restoring forces of switch devices could ... [more ▼]

Stiction is a major failure mode of MEMS as microscopic structures tend to adhere to each other when their surfaces enter into contact. Although increasing the restoring forces of switch devices could overcome the stiction effect, this is not practical, as in turn, it also increases the actuation voltage. Therefore stiction prediction is important to be considered when designing micro- and nano- devices. In this paper, the numerical prediction of stiction for capacitive MEMS switches is considered. Toward this end, a micro-adhesive-contact law is derived from previous work and combined with a finite-element model. [less ▲]

Detailed reference viewed: 95 (32 ULg)
Full Text
Peer Reviewed
See detailMotivational mechanisms at the origin of control task violations : An analytical case study in the pharmaceutical industry
Nyssen, Anne-Sophie ULg; Cote, Virginie

in Ergonomics (2010), 53(9), 1076-1084

The introduction of rules and procedures to guide front-line operators’ behaviour and to decrease the frequency of errors is a growing safety strategy in complex, risk systems. It is thought to be a ... [more ▼]

The introduction of rules and procedures to guide front-line operators’ behaviour and to decrease the frequency of errors is a growing safety strategy in complex, risk systems. It is thought to be a useful way of controlling and standardising human practices and of increasing safety and quality. However, merely developing procedures does not ensure that they are followed. In this study, observation was used to collect information on procedural violations in a pharmaceutical company. Interviews were conducted with the operators and the prescriptors to better understand how and why these violations were occurring. Results showed that a small number of procedures were breached by the majority of operators and that the rules which were violated were the ones associated with a perception of minimum risk. Results suggest the rationality of operators is a response to cognitive and social influences which must be taken into account when designing procedures. [less ▲]

Detailed reference viewed: 43 (14 ULg)
See detailUne réforme pour un meilleur fonctionnement et une plus grande transparence
Lecocq, Pascale ULg

in Lecocq, Pascale; Durant, Isabelle; Mostin, Corinne (Eds.) La copropriété par appartements : la réforme de 2010 (2010)

Detailed reference viewed: 17 (2 ULg)
Full Text
Peer Reviewed
See detailCathodic electrografting of acrylics: From fundamentals to functional coatings
Gabriel, Sabine ULg; Jérôme, Robert ULg; Jérôme, Christine ULg

in Progress in Polymer Science (2010), 35

Promoting permanent adhesion between so dissimilar materials as polymers and metals is a very challenging target and a severe brake to the implementation of many potential applications. However, synthetic ... [more ▼]

Promoting permanent adhesion between so dissimilar materials as polymers and metals is a very challenging target and a severe brake to the implementation of many potential applications. However, synthetic polymers can now be chemisorbed onto a variety of conducting surfaces by cathodic electrografting of acrylic monomers. The first part of this review will focus on the fundamental aspects of this emerging technology, thus from the historical discovery to experimental and theoretical developments, with the purpose to better comprehend the electrografting phenomenon. Once firmly established, this concept has been exploited in order to make polymeric coatings with specific functionality chemisorbed onto more diversified substrates in more convenient liquid media. This remarkable progress that largely relies on advanced controlled polymerization processes will be the topic of the second part of the review, with a special emphasis on the more recent development of smart coatings, particularly stimuli responsive coatings very well-suited to nanotechnologies. [less ▲]

Detailed reference viewed: 80 (29 ULg)
Full Text
Peer Reviewed
See detailNumerical simulation of two-dimensional and three-dimensional axisymmetric advection-diffusion systems with complex geometries using finite-volume methods
Ashbourn, J. M. A.; Geris, Liesbet ULg; Gerisch, A. et al

in Proceedings : Mathematical, Physical & Engineering Sciences (2010), 466(2118), 1621-1643

A finite-volume method has been developed that can deal accurately with complicated, curved boundaries for both two-dimensional and three-dimensional axisymmetric advection-diffusion systems. The ... [more ▼]

A finite-volume method has been developed that can deal accurately with complicated, curved boundaries for both two-dimensional and three-dimensional axisymmetric advection-diffusion systems. The motivation behind this is threefold. Firstly, the ability to model the correct geometry of a situation yields more accurate results. Secondly, smooth geometries eliminate corner singularities in the calculation of, for example, mechanical variables and thirdly, different geometries can be tested for experimental applications. An example illustrating each of these is given: fluid carrying a dye and rotating in an annulus, bone fracture healing in mice, and using vessels of different geometry in an ultracentrifuge. [less ▲]

Detailed reference viewed: 24 (6 ULg)
Full Text
Peer Reviewed
See detailSeasonal and hormonal modulation of neurotransmitter systems in the song control circuit.
Ball, Gregory F; Balthazart, Jacques ULg

in Journal of Chemical Neuroanatomy (2010), 39(2), 82-95

In the years following the discovery of the song system, it was realized that this specialized circuit controlling learned vocalizations in songbirds (a) constitutes a specific target for sex steroid ... [more ▼]

In the years following the discovery of the song system, it was realized that this specialized circuit controlling learned vocalizations in songbirds (a) constitutes a specific target for sex steroid hormone action and expresses androgen and (for some nuclei) estrogen receptors, (b) exhibits a chemical neuroanatomical pattern consisting in a differential expression of various neuropeptides and neurotransmitters receptors as compared to surrounding structures and (c) shows pronounced seasonal variations in volume and physiology based, at least in the case of HVC, on a seasonal change in neuron recruitment and survival. During the past 30 years numerous studies have investigated how seasonal changes, transduced largely but not exclusively through changes in sex steroid concentrations, affect singing frequency and quality by modulating the structure and activity of the song control circuit. These studies showed that testosterone or its metabolite estradiol, control seasonal variation in singing quality by a direct action on song control nuclei. These studies also gave rise to the hypothesis that the probability of song production in response to a given stimulus (i.e. its motivation) is controlled through effects on the medial preoptic area and on catecholaminergic cell groups that project to song control nuclei. Selective pharmacological manipulations confirmed that the noradrenergic system indeed plays a role in the control of singing behavior. More experimental work is, however, needed to identify specific genes related to neurotransmission that are regulated by steroids in functionally defined brain areas to enhance different aspects of song behavior. [less ▲]

Detailed reference viewed: 22 (2 ULg)
Full Text
See detailLeadership et genre : regard croisé de la gestion et de la psychanalyse
Cornet, Annie ULg; Cadalen, Sophie

in Gazette Cournot (La) (2010), 47

Detailed reference viewed: 63 (17 ULg)
Full Text
Peer Reviewed
See detailSelf-heating of bulk high temperature superconductors of finite height subjected to a large alternating magnetic field
Laurent, Philippe; Fagnard, Jean-François ULg; Hari Babu, N. et al

in Superconductor Science and Technology (2010), 23

In this work we study, both experimentally and numerically, the self-heating of a bulk, large YBCO pellet of aspect ratio (thickness / diameter) ~ 0.4 subjected to a large AC magnetic field. To ensure ... [more ▼]

In this work we study, both experimentally and numerically, the self-heating of a bulk, large YBCO pellet of aspect ratio (thickness / diameter) ~ 0.4 subjected to a large AC magnetic field. To ensure accurate temperature measurements, the sample was placed in an experimental vacuum chamber to achieve a small and reproducible heat transfer coefficient between the superconductor and the cryogenic fluid. The temperature was measured at several locations on the sample surface during the self-heating process. The experimentally determined temperature gradients are found to be very small in this arrangement (< 0.2 K across the radius of the superconductor). The time-dependence of the average temperature T(t) is found to agree well with a theoretical prediction based on the one-dimensional (1-D) Bean model, assuming a uniform temperature in the sample. A 2-D magneto-thermal model was also used to determine the space and time-dependent temperature distribution T(r, z, t) during the application of the AC field. The losses in the bulk pellet were determined using an algorithm based on the numerical method of Brandt, which was combined with a heat diffusion algorithm implemented using a finite-difference method. The model is shown to be able to reproduce the main trends of the observed temperature evolution of the bulk sample during a self-heating process. Finally, the 2-D model is used to study the effect of a non-uniform distribution of critical current density Jc(r, z) on the losses within the bulk superconductor. [less ▲]

Detailed reference viewed: 68 (40 ULg)
Full Text
Peer Reviewed
See detailSpontaneous and granulocyte–colony-stimulating factor-enhanced marrow response and progenitor cell mobilization in mice after myocardial infarction.
Delgaudine, Marie ULg; Gothot, André ULg; Beguin, Yves ULg

in Cytotherapy (2010), 12(7), 909-18

BACKGROUND AIMS: Hematopoietic (HPC), mesenchymal (MPC) and/or endothelial (EPC) progenitor cells are being studied to repair the myocardium after acute or chronic ischemia. We examined marrow response to ... [more ▼]

BACKGROUND AIMS: Hematopoietic (HPC), mesenchymal (MPC) and/or endothelial (EPC) progenitor cells are being studied to repair the myocardium after acute or chronic ischemia. We examined marrow response to myocardial infarction (MI) and the ability of granulocyte-colony-stimulating factor (G-CSF) to enhance mobilization of HPC, MPC and EPC in peripheral blood (PB) and bone marrow (BM) of MI mice. METHODS: We induced MI in C57Bl/6 mice, while sham-operated (SO) animals were similarly operated on but without coronary artery ligation. Animals were treated with either saline or G-CSF, from day -5 to day +5 after MI or from day 0 to day +5. Progenitor cell numbers in PB and BM were evaluated by fluorescence-activated cell sorting (FACS) analysis and cell culture. RESULTS: White blood cells (WBC) decreased in BM and increased in PB after MI; G-CSF amplified this effect in BM but not in PB. HPC numbers decreased in BM after MI, while HPC and granulocyte-macrophage colony-forming units (GM-CFU) increased in PB only after G-CSF treatment, and more prominently so in MI than in SO mice. MPC and fibroblast-colony-forming units (F-CFU) as well as EPC were mobilized into the PB after MI and further after G-CSF treatment. Plasma troponin T concentrations decreased after G-CSF treatment. CONCLUSIONS: BM is globally affected by acute MI, but not simple body injury, with intense mobilization of marrow MPC and EPC into the PB but inhibition of HPC. Progenitor cell entry into the PB may be paralleled by depletion of their BM pools. G-CSF is required for HPC mobilization and enhances MPC and EPC entry into the PB. [less ▲]

Detailed reference viewed: 55 (19 ULg)
Full Text
Peer Reviewed
See detailreview of Luke Sunderland, Old French Narrative Cycles. Heroism between Ethics and Morality
Morato, Nicola ULg

in Medioevo Romanzo (2010), 34(2), 440-442

Detailed reference viewed: 7 (0 ULg)
Full Text
See detailIl ciclo di Guiron le Courtois. Strutture e testi nella tradizione manoscritta
Morato, Nicola ULg

Book published by SISMEL - Edizioni del Galluzzo (2010)

Detailed reference viewed: 29 (4 ULg)
Full Text
See detailLe Pavé de Charlemagne (Via Mansuerisca?)
Nekrassoff, Serge ULg; Streel, Maurice ULg

in Malmedy Art et Histoire (2010)

Detailed reference viewed: 6 (0 ULg)
Full Text
Peer Reviewed
See detailValidation of a new French-language triage algorithm : the ELISA scale.
Jobe, Jérôme ULg; Ghuysen, Alexandre ULg; GERARD, P. et al

in Critical Care (2010), 14(Suppl1), 277

Detailed reference viewed: 39 (14 ULg)