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See detailImprovement and validation of milk fatty acid predictions using mid-infrared spectrometry
Soyeurt, Hélène ULg; McParland, Sinead; Berry, Donagh et al

in Proceedings of the Bristish Society of Animal Science and the Agricultural Research Forum (2010)

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See detailDosage par GC/QQQ de huit pesticides organochlorés dans le sérum
Dubois, Nathalie ULg; Elbaz, A.; Charlier, Corinne ULg

in Acta Clinica Belgica (2010), 65(1), 58-64

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See detailDiversity of mechanisms involved in aromatase regulation and estrogen action in the brain
Charlier, Thierry ULg; Cornil, Charlotte ULg; Ball, Gregory et al

in Biochimica et Biophysica Acta - General Subjects (2010)

Background In recent years, the mechanisms through which estrogens modulate neuronal physiology, brain morphology, and behavior have proven to be far more complex than previously thought. For example, a ... [more ▼]

Background In recent years, the mechanisms through which estrogens modulate neuronal physiology, brain morphology, and behavior have proven to be far more complex than previously thought. For example, a second nuclear estrogen receptor has been identified, a new family of coregulatory proteins regulating steroid-dependent gene transcriptions was discovered and, finally, it has become clear that estrogens have surprisingly rapid effects based on their actions on cell membranes, which in turn result in the modulation of intracellular signaling cascades. Scope of review This paper presents a selective review of new findings in this area related to work in our laboratories, focusing on the role of estrogens in the activation of male sexual behavior. Two separate topics are considered. We first discuss functions of the steroid receptor coactivator-1 (SRC-1) that has emerged as a key limiting factor for behavioral effects of estradiol. Knocking-down its expression by antisense oligonucleotides drastically inhibits male-typical sexual behaviors. Secondly, we describe rapid regulations of brain estradiol production by calcium-dependent phosphorylations of the aromatase enzyme, themselves under the control of neurotransmitter activity. These rapid changes in estrogen bioavailability have clear behavioral consequences. Increases or decreases in estradiol concentrations respectively obtained by an acute injection of estradiol itself or of an aromatase inhibitor lead within 15–30 min to parallel changes in sexual behavior frequencies. These new controls of estrogen action offer a vast array of possibilities for discrete local controls of estrogen action. They also represent a formidable challenge for neuroendocrinologists trying to obtain an integrated view of brain function in relation to behavior. [less ▲]

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See detailA grid for a precise analysis of daily activities
Wojtasik, Vinciane ULg; Olivier, Catherine ULg; Lekeu, Françoise ULg et al

in Neuropsychological Rehabilitation (2010), 20

Assessment of daily living activities is essential in patients with Alzheimer's disease. Most current tools quantitatively assess overall ability but provide little qualitative information on individual ... [more ▼]

Assessment of daily living activities is essential in patients with Alzheimer's disease. Most current tools quantitatively assess overall ability but provide little qualitative information on individual difficulties. Only a few tools allow therapists to evaluate stereotyped activities and record different types of errors. We capitalised on the Kitchen Activity Assessment to design a widely applicable analysis grid that provides both qualitative and quantitative data on activity performance. A cooking activity was videotaped in 15 patients with dementia and assessed according to the different steps in the execution of the task. The evaluations obtained with our grid showed good correlations between raters, between versions of the grid and between sessions. Moreover, the degree of independence obtained with our analysis of the task correlated with the Kitchen Activity Assessment score and with a global score of cognitive functioning. We conclude that assessment of a daily living activity with this analysis grid is reproducible and relatively independent of the therapist, and thus provides quantitative and qualitative information useful for both evaluating and caring for demented patients. [less ▲]

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See detailLe droit européen de la concurrence au banc des accusés
Petit, Nicolas ULg

in Revue de la Faculté de Droit de l'Université de Liège (2010), (2),

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See detailRecension: "DBFM: Meid van alle (PPS-)werk. DBFM: la bonne à tout faire en PPP?", par A. François, K. Leeus et A. Logghe
Kohl, Benoît ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2010)

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See detailChronique de jurisprudence. La vente d'immeubles
Kohl, Benoît ULg

in Leleu, Yves-Henri (Ed.) Chroniques Notariales (2010)

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See detail@u monde, citoyen !
Jadoulle, Jean-Louis ULg

Book published by Didier Hatier (2010)

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See detailSelective epitaxial growth of III-V semiconductor on large-area Si substrate for advanced logic CMOS technologies
Nguyen, Ngoc Duy ULg; Brammertz, Guy; Wang, Gang et al

Conference (2010)

The continued downscaling of the metal-oxide semiconductor (MOS) transistor for sub-22 nm logic circuits with boosted performance will require the introduction of new channel materials with carrier ... [more ▼]

The continued downscaling of the metal-oxide semiconductor (MOS) transistor for sub-22 nm logic circuits with boosted performance will require the introduction of new channel materials with carrier mobility higher than that of Si, such as Ge for pMOS. The use of III-V compounds for nMOS devices poses however additional challenges related to the hetero-epitaxial growth of a polar semiconductor on a non-polar surface. Furthermore, these high-mobility materials have to be fabricated on large-area Si substrates, in the perspective of application in a standard low-cost very-large-scale integration scheme. In this work, we report on the successful growth of GaAs on 200 mm Si wafers by means of metal-organic vapor deposition using a modified Crius Close-Coupled Showerhead system from AIXTRON AG. We used Si (100) wafers with off-axis orientation (6° miscut towards <111>) in order to avoid the formation of anti-phase domains which lead to Ga-Ga and As-As bonds at their boundaries that have strong detrimental effects on the electrical conduction. In our approach, based on Ge virtual substrates with low threading dislocation (TD) density, the lattice mismatch between Si and GaAs is accommodated and, thus, no additional TD is introduced in the deposited III-V film. Our results show that smooth GaAs layers can be epitaxially grown on large-area Si substrates with high wafer-scale thickness uniformity. The excellent quality of the deposited GaAs was confirmed by photoluminescence and electron microscopy. Our process also demonstrates very high selectivity on patterned wafers with SiO2 mask and enabled the fabrication of capacitor structures using an integration process flow very similar to standard high volume Si manufacturing lines. The capacitance-voltage characteristics were similar to the ones obtained on a bulk GaAs substrate, and showed extremely tight within-wafer and wafer-to-wafer distributions as is standard to Si manufacturing. [less ▲]

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See detailCombined pharmacokinetic and urodynamic study of the effects of oral administration of phenylpropanolamine in female Beagle dogs
Noël, Stéphanie; Cambier, Carole; Baert, Kris et al

in Veterinary Journal (2010)

This study investigated the differences in pharmacokinetic, urodynamic and haemodynamic parameters in female Beagle dogs in which blood sampling and urethral pressure profiles were performed over 24 h ... [more ▼]

This study investigated the differences in pharmacokinetic, urodynamic and haemodynamic parameters in female Beagle dogs in which blood sampling and urethral pressure profiles were performed over 24 h periods, after single or three times daily (T0-T6h-T12h) administration of phenylpropanolamine (PPA). Maximal concentration (Cmax) was reached 2 h after PPA administration (Tmax). The half-life lasted 4 h and, because of bioaccumulation, three times daily administration induced an increase in Cmax. Compared to the control group, a significant increase in urethral resistance was observed at Tmax after 1 week of once daily administrations. After one week of administering PPA every 6 h during the daytime, but not during the night, and despite higher plasma concentrations, the urethral resistance did not increase at any time, compared to the control group. The increase in mean arterial pressure values was compensated by a decreased heart rate. The clinical efficacy of the temporary increase in urethral resistance following single daily administration of PPA in dogs suffering from urethral sphincter mechanism incompetence (USMI) needs to be further investigated in a randomised clinical trial. [less ▲]

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See detailL'administration provisoire
Deguel, François ULg

in Leleu, Yves-Henri (Ed.) Chroniques notariales (2010)

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See detailAnticipatory Artificial Autopoiesis
Dubois, Daniel ULg; Holmberg, Stig C.

in Trappl, Robert (Ed.) CYBERNETICS AND SYSTEMS 2010 (2010)

In examining relationships between autopoiesis and anticipation in artificial life (Alife) systems it is demonstrated that anticipation may increase efficiency and viability in artificial autopoietic ... [more ▼]

In examining relationships between autopoiesis and anticipation in artificial life (Alife) systems it is demonstrated that anticipation may increase efficiency and viability in artificial autopoietic living systems. This paper, firstly, gives a review of the Varela et al [1974] automata algorithm of an autopoietic living cell. Some problems in this algorithm must be corrected. Secondly, a new and original anticipatory artificial autopoiesis algorithm for automata is presented. In our automata system, the asymmetric membrane of the self-creating living cell plays a central role. The simulation confirms the validity of our algorithm in showing its autopoietic properties. [less ▲]

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See detailOceanic CO2 sink: the contribution of the marine cryosphere
Delille, Bruno ULg; Vancoppenolle, M.; Tilbrook, B. et al

Conference (2010)

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See detailCassandre, un outil pour construire, confronter et expliciter les interprétations
Lejeune, Christophe ULg

in Beauvais, Martine; Clénet, Jean (Eds.) Actes du 2ème colloque international francophone sur les méthodes qualitatives (2010)

Cassandre est un logiciel libre d'analyse de textes, adossé à la plateforme collaborative Hypertopic. Fruit de la convergence épistémologique entre l'analyse qualitative (en sciences humaines) et le Web ... [more ▼]

Cassandre est un logiciel libre d'analyse de textes, adossé à la plateforme collaborative Hypertopic. Fruit de la convergence épistémologique entre l'analyse qualitative (en sciences humaines) et le Web socio-sémantique (en informatique), cet outil accompagne la construction semi-automatique du (des) cadre(s) d'analyse du (des) chercheur(s). Une série de comptes-rendus d'utilisation (tantôt collectifs tantôt isolés, plutôt inductifs ou hypothético-déductifs) attestent des apports de l'outil : génération d'un journal de bord, économie cognitive et temporelle, flexibilité, aide au travail en équipe et multiplication des entrées dans le matériau. Ces usages témoignent également des inévitables limites afférentes à l'usage d'un logiciel dans une approche qualitative. En définitive, on plaide donc pour un recours raisonné à Cassandre, comme à tout autre logiciel. [less ▲]

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See detailMontrer, calculer, explorer, analyser. Ce que l'informatique fait (faire) à l'analyse qualitative
Lejeune, Christophe ULg

in Recherches Qualitatives (2010), 9

Au delà de ses implications techniques, l'informatisation de l'analyse de texte soulève des questions de méthode. Après un recensement des motivations à recourir à des logiciels pour assister l'analyse de ... [more ▼]

Au delà de ses implications techniques, l'informatisation de l'analyse de texte soulève des questions de méthode. Après un recensement des motivations à recourir à des logiciels pour assister l'analyse de données textuelles, nous proposons une typologie distinguant cinq fonctionnalités proposées par ces outils : la lexicométrie, les concordances, les automates, les outils réflexifs et les dictionnaires. Chacune de ces fonctionnalités éclaire les textes d'une manière originale (et partielle). Rapportée à ses usages attestés, chacune de ces potentialités articule des présupposés épistémologiques spécifiques. En définitive, le choix d'un logiciel caractérise autant une démarche de recherche que l'inscription dans un paradigme. [less ▲]

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See detailAssociation between frontal EEG asymmetries and emotional intelligence among adults
Mikolajczak, Moïra; Bodarwé, Kerrin; Laloyaux, Olivier et al

in Personality & Individual Differences (2010), 48(2), 177-181

This study aimed at investigating the brain correlates of trait emotional intelligence. Trait emotional intelligence (trait EI) is a constellation of emotion-related traits, capturing the extent to which ... [more ▼]

This study aimed at investigating the brain correlates of trait emotional intelligence. Trait emotional intelligence (trait EI) is a constellation of emotion-related traits, capturing the extent to which people experience, attend to, identify, understand, regulate, and utilize their emotions and those of others. As previous studies have provided converging evidence that frontal asymmetries were one of the determinants of emotion dispositions and behaviors, and as observations on individuals with a high level of emotional intelligence parallel those on people with a left-sided frontal cortical asymmetry in nearly every respect, we hypothesized that the level of emotional intelligence might be associated with differential frontal activation. Results supported the hypothesis: the pattern of resting electroencephalographic (EEG) activation recorded in the frontal areas was significantly associated with emotional intelligence. Individuals with higher trait EI evidence greater resting left frontal activation. [less ▲]

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See detailValidation of a two-plate microbiological method for screening antibiotic residues in shrimp tissue
Pham Kim, Dang ULg; Degand, Guy ULg; Danyi, Sophie ULg et al

in Analytica Chimica Acta (2010), 672

Microbiological inhibition screening tests could play an important role to detect residues of antibiotics in the different animal food products, but very few are available for the aquaculture products in ... [more ▼]

Microbiological inhibition screening tests could play an important role to detect residues of antibiotics in the different animal food products, but very few are available for the aquaculture products in general, and for shrimps in particular. A two-plate microbiological method to screen shrimp for residues of the most commonly used antibiotics has been developed and validated according to criteria derived from the European Commission Decision 2002/657/CE. Bacillus subtilis was used as a sensitive strain to target antibiotics. Culture conditions on Petri plates (pH of medium) were selected to enhance the capacity of antibiotic detection. Antibiotic residues were extracted from shrimps using acetonitrile/acetone (70/30, v/v) before application on Petri plates seeded with B. subtilis. The method was validated using spiked blank tissues as well as antibiotic treated shrimps with enrofloxacin and tetracycline, two antibiotics often found to be used in shrimp production. For tetracyclines and (fluoro)quinolones, the detection capability was below the maximum residue limit (MRL), while it was around the MRL for sulfonamides. The specificity of the microbiological screening was 100% in all cases while the sensitivity and accuracy was 100% in almost all cases. The capacity of the method to detect contaminated samples was confirmed on antibiotic treated shrimps, analyzed in parallel with a confirmatory method (Liquid Chromatography coupled to mass spectrometry (LC–MS)). [less ▲]

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See detailDiscrete Harmonic Oscillator: A Short Compendium of Formulas
Antippa, Adel F.; Dubois, Daniel ULg

in Dubois, Daniel (Ed.) COMPUTING ANTICIPATORY SYSTEMS (2010)

Since 2002, we have, in seven papers, studied the problem of the discrete harmonic oscillator, analytically, numerically, and graphically, and made progress on a number of fronts. We identified the ... [more ▼]

Since 2002, we have, in seven papers, studied the problem of the discrete harmonic oscillator, analytically, numerically, and graphically, and made progress on a number of fronts. We identified the natural frequency of oscillation of the dual incursive oscillators, studied the system bifurcation generated by incursive discretization, and the frequency dependent correlation between the resulting incursive oscillators. We also studied the synchronization of the discretizing time interval with the frequency of oscillation. From this analysis there emerged a nonlinear (or more precisely bilinear) formalism that is perfectly stable at all time scales, and fully conserves the total energy of the system. The formalism is applicable to the discrete harmonic oscillator specifically, and to discrete Hamiltonian systems in general. In retrospect the important themes and crucial steps can more easily be identified, and this is the purpose of this short note. In it we give, in a unified notation, a short compendium of the key formulas. This summary can serve as a guide for navigating through the seven papers, as well as a practical concise manual for using the formalism. [less ▲]

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