References of "2003"
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See detail2. “La Parure“ di Maupassant. Strategie conclusive ed echi flaubertiani
Benzoni, Pietro ULg

in Strumenti Critici (2003), 103(3), 417-438

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See detailSpace-Time Adaptive Processing (STAP): an Overview
Verly, Jacques ULg

Scientific conference (2003)

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See detailProstaglandin D2 affects the differentiation of human dendritic cells
Gosset, Philippe; Bureau, Fabrice ULg; Pichavant, Muriel et al

Poster (2003)

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See detailLes compétences de l’intervenant en organisation
Pichault, François ULg

in Guénette, Alain-Max; Rossi, M.; Sardas, Jean-Claude (Eds.) Compétences et connaissances dans les organisations (2003)

Study of the conditions under which action research may help the client system to evolve

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See detailLeclercq Suzanne.
Streel, Maurice ULg; Fairon-Demaret, M

in Académie Royale des sciences lettres et beaux arts de Belgique/ Nouvelle biographie nationale (2003), 7

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See detailInduce triploidy by heat shock in Eurasian perch, Perca fluviatilis
Rougeot, Carole ULg; Minet, Laurent; Prignon, Christian ULg et al

in Aquatic Living Resources (2003), 16(2, MAR-APR), 90-94

In Eurasian perch (Perca fluviatilis), females grow significantly faster than males. Moreover, gonadal development has a significant negative impact on somatic growth and fillet yield. In order to induce ... [more ▼]

In Eurasian perch (Perca fluviatilis), females grow significantly faster than males. Moreover, gonadal development has a significant negative impact on somatic growth and fillet yield. In order to induce sterility, triploidy induction was attempted by subjecting fertilised eggs to heat shocks. Different combinations of temperature (28, 30, 34, 35 and 36 degreesC), duration (2, 5, 10 and 25 min) and time of shock initiation (TI = 3, 5 and 7 min post-fertilisation) were tested. Flow cytometry analysis was used to assess ploidy level of control and heat-shocked larvae. Low intensity (28-30 degreesC) and long duration (10 and 25 min) shocks lead to significantly higher survival (44 +/- 26%) and triploidisation (71 +/- 26%) rates than high intensity (34-36 degreesC) and short duration (2 and 5 min) shocks (17 +/- 19% and 21 +/- 26%, respectively). The most effective conditions for efficient triploidy induction were low intensity shock of 30 degreesC, applied 5 min post-fertilisation for 25 min. This treatment led to the production of all-triploid populations (100%) with up to 43% survival rate. (C) 2003 Editions scientifiques et medicales Elsevier SAS and Ifremer/IRD/Inra/Cemagref. All rights reserved. [less ▲]

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See detailNew illumination technique for IR-video guided patch-clamp recording from neurons in slice cultures on biomembrane
Alix, Philippe ULg; Winterer, J; Muller, W

in Journal of Neuroscience Methods (2003), 128

Slice cultures on biomembrane are the method of choice for studying Ca2 -dependent plastic changes occurring over several days to weeks. Using IR-differential interference contrast, good visualization of ... [more ▼]

Slice cultures on biomembrane are the method of choice for studying Ca2 -dependent plastic changes occurring over several days to weeks. Using IR-differential interference contrast, good visualization of neurons in biomembrane slice cultures has been achieved despite a negative optical effect of the biomembrane, but epifluorescence imaging requires removal of a Wollaston prism and the analyzer. Here, we describe a novel illumination method to overcome this problem. Using optic fiber illumination at a shallow angle from the top of the slice culture, with or without additional illumination from the bottom, we obtained good cellular resolution of neurons in biomembrane slice cultures as well as in acute slices with an infrared-video camera. With this technique, we demonstrate visually guided whole-cell patch-clamp recording of Na - and K -currents as well as combination of whole-cell recording with fluorescence imaging of hippocampal and entorhinal cortex neurons in biomembrane slice cultures. Our inexpensive method should prove very useful for studying in vitro effects of long-term manipulations on membrane currents and intracellular Ca2 -signaling. # 2003 Elsevier B.V. All rights reserved. [less ▲]

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See detailAcetazolamide acts on neuromuscular transmission abnormalities found in some migraineurs.
Ambrosini, A.; Pierelli, F.; Schoenen, Jean ULg

in Cephalalgia : An International Journal of Headache (2003), 23(2), 75-8

Mild subclinical impairment of neuromuscular transmission can be detected with single-fibre electromyography (SFEMG) in subgroups of patients suffering from migraine and could be due to dysfunctioning Ca2 ... [more ▼]

Mild subclinical impairment of neuromuscular transmission can be detected with single-fibre electromyography (SFEMG) in subgroups of patients suffering from migraine and could be due to dysfunctioning Ca2+-channels on motor axons controlling stimulation-induced acetylcholine release. Acetazolamide, which is thought to ameliorate ion channel function, was shown effective in familial hemiplegic migraine and episodic ataxia type 2, both of which are associated with mutations of the neuronal Ca2+-channel gene CACNA1A, as well as in aura status. We treated therefore in an open pilot study five non-hemiplegic migraineurs showing mild SFEMG abnormalities with acetazolamide for several weeks. This was followed by a normalization of SFEMG recordings in all patients and by clinical improvement in four. These results support the assumption that the subclinical impairment of neuromuscular transmission found in certain migraineurs might be due to dysfunctioning Ca2+-channels. [less ▲]

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See detailIntoxications aiguës au méthanol et à l'éthylène glycol
Charlier, Corinne ULg

Conference (2003)

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See detailCalibration of ion effective temperatures achieved by resonant activation in a quadrupole ion trap
Gabelica, Valérie ULg; Karas, Michael; De Pauw, Edwin ULg

in Analytical Chemistry (2003), 75(19), 5152-5159

The present paper describes a calibration of the ion effective temperatures as a function of the resonant activation amplitude in a quadrupole ion trap mass spectrometer. MS/MS experiments are performed ... [more ▼]

The present paper describes a calibration of the ion effective temperatures as a function of the resonant activation amplitude in a quadrupole ion trap mass spectrometer. MS/MS experiments are performed on leucine enkephalin (M + H)(+), bradykinin (M + H)(+), (M + 2H)(2+), and (M + 3H)(3+), and ubiquitin (M + 11H)(11+). For each amplitude, the effective temperature is calculated as the temperature that would give the same dissociation rate constant as the one observed and is calculated using published Arrhenius parameters. The effective temperature is found to be linearly dependent on the activation amplitude on the range investigated. The dependence of the slope and of the intercept of the T-eff = f (amplitude) functions on the parent ion m/z is examined and an equation is derived to calibrate the ion effective temperature between 365 and 600 K Below 365 K, a deviation from linearity is expected. Above 600 1 the validity of the equation will depend on whether the rapid energy exchange limit is still reached. Calculating backward, the Arrhenius parameters from the measured dissociation rates using this calibration show excellent agreement with the published values. The calibration can therefore be used to determine Arrhenius activation parameters from dissociation kinetics under resonant activation in quadrupole ion trap mass spectrometers. [less ▲]

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See detailUtilisation de la technique ultrasonique pour prédire des paramètres caractérisant la carcasse et la viande de boeuf
Delobel, A.; Cabaraux, Jean-François ULg; Hornick, Jean-Luc ULg et al

in 10èmes Rencontres autour des Recherches sur les Ruminants (2003)

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See detailThe use of DORIS as a tool to study the Earth ionosphere
Warnant, René ULg; Morel, Laurent; Stankov, Stanimir et al

Conference (2003)

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See detailCes nombres que l'on dit "imaginaires".
Rosseel, H.; Schneider, Marguerite ULg

in Petit X (2003), 63

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See detailExtrême droite et fédéralisme
Matagne, Geoffroy ULg

in Fédéralisme - Régionalisme (2003), 2001-2002

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See detailCompte-rendu de l'ouvrage de Pascal Deloge: Une coopération difficile : Belgique et Grande-Bretagne en quête de sécurité à l’aube de la guerre froide
Lanneau, Catherine ULg

in Bulletin d'Information de l'Association Belge d'Histoire Contemporaine = Mededelingenblad van de Belgische Vereniging voor Nieuwste Geschiedenis (2003), XXV(1), 19-20

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See detailEu10Mn6Sb13: A new ternary rare-earth transition-metal
Holm, A. P.; Park, S. M.; Condron, C. L. et al

in Inorganic Chemistry (2003), 42(15), 4660-4667

A new transition-metal-containing Zintl compound, Eu10Mn6Sb13, was prepared by a high-temperature Sn-flux synthesis. The structure was determined by single-crystal X-ray diffraction. Eu10Mn6Sb13 ... [more ▼]

A new transition-metal-containing Zintl compound, Eu10Mn6Sb13, was prepared by a high-temperature Sn-flux synthesis. The structure was determined by single-crystal X-ray diffraction. Eu10Mn6Sb13 crystallizes in the monoclinic space group C2/m with a = 15.1791(6) Angstrom, b = 19.1919(7) Angstrom, c = 12.2679(4) Angstrom, beta = 108.078(1)degrees, Z = 4 (R1 = 0.0410, wR2 = 0.0920), and T = 90(2) K. The structure of Eu10Mn6Sb13 is composed of double layers of Mn-centered tetrahedra separated by Eu2+ cations. The double layers are composed of edge- and corner-sharing Mn-centered tetrahedra which form cavities occupied by Eu2+ cations and [Sb-2](4-) dumbbells. Linear [Sb-3](5-) trimers bridging two tetrahedra across the cavity are also present. Bulk susceptibility data indicate paramagnetic behavior with a ferromagnetic component present below 60 K. Temperature-dependent electrical resistivity measurements show semiconducting behavior above 60 K (E-a = 0.115(2) eV), a large and unusually sharp maximum in the resistivity at similar to40 K, and metallic behavior below 40 K. Eu-151 Mossbauer spectra confirm that the europium is divalent with an average isomer shift of -11.2(1) mm/s at 100 K; the spectra obtained below 40 K reveal magnetic ordering of six of the seven europium sublattices and, at 4.2 K, complete ordering of the seven europium sublattices. [less ▲]

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See detailThe 12C/13C and 14N/15N Isotopic Ratios in Comet C/2000 WM1 (LINEAR)
Jehin, Emmanuel ULg; Arpigny, Claude ULg; Manfroid, Jean ULg et al

in CNO in the Universe. Astronomical Society of the Pacific Conference Series 304 (2003)

Not Available

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See detailChanger de méthode d'étude suite aux feedbacks : l'opération RESSAC (Résultats d'Epreuves Standardisées au Service de l'Apprentissage en Candidature)
Leclercq, Dieudonné ULg; Gilles, Jean-Luc ULg; Dupont, Chantal ULg et al

in Leclercq, Dieudonné (Ed.) Diagnostic cognitif et métacognitif au seuil de l'université : le projet Mohican menée par les 9 universités de la Communauté française Wallonie-Bruxelles (2003)

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See detailMemory processing during human sleep as assessed by functional neuroimaging.
Maquet, Pierre ULg; Peigneux, Philippe ULg; Laureys, Steven ULg et al

in Revue Neurologique (2003), 159(11 Suppl), 627-9

Sleep is believed to participate in memory consolidation, possibly through off-line processing of recent memory traces. In this paper, we summarize functional neuroimaging data testing this hypothesis ... [more ▼]

Sleep is believed to participate in memory consolidation, possibly through off-line processing of recent memory traces. In this paper, we summarize functional neuroimaging data testing this hypothesis. First, sleep deprivation disrupts the processing of recent memory traces and hampers the changes in functional segregation and connectivity which underpin the gain in performance usually observed in subjects allowed to sleep on the first post-training night. Second, experience-dependent changes in regional brain activity occur during post-training sleep. These changes are shown to be related to the processing of high-level material and to be modulated by the amount of learning achieved during the training session. These changes do not involve isolated brain areas but entire macroscopic cerebral networks. These data suggest a role for sleep in the processing of recent memory traces. [less ▲]

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See detailProlactin Suppresses Glucocorticoid-Induced Thymocyte Apoptosis in Vivo
Krishnan, Nithya; Thellin, Olivier ULg; Buckley, Donna J. et al

in Endocrinology (2003), 144(5), 2102-2110

The hypothesis that prolactin (PRL) functions as an immunomodulator was based on studies showing lymphocyte PRL receptors, and its effects on growth, differentiation, and apoptosis in lymphoid cells ... [more ▼]

The hypothesis that prolactin (PRL) functions as an immunomodulator was based on studies showing lymphocyte PRL receptors, and its effects on growth, differentiation, and apoptosis in lymphoid cells. However, studies of PRL (PRL-/-) and PRL receptor knockout mice indicated that PRL was not required for immune system development or function under basal conditions. Because PRL maintains survival in glucocorticoid (GC)-treated Nb2-T lymphocytes in vitro, and PRL and GCs are elevated during stress, we investigated whether PRL protected T cells in vivo from GC-induced apoptosis. Adrenalectomized mice [PRL -/-, undetectable PRL; pituitary grafted PRL-/- (PRL-/-Graft), elevated PRL; and PRL+/-, normal PRL] were treated with dexamethasone (DEX) or PBS. Thymocytes and splenocytes were isolated and annexin V labeling of phosphatidylserine, DNA fragmentation, and caspase-3 activation were assessed as indices of apoptosis. Total thymocytes and CD4+ and CD8+ T cells obtained from DEX-treated PRL-/- mice exhibited significantly increased annexin V binding. In contrast, binding was not altered by DEX in PRL-/-Graft thymocytes. In addition, DEX induced classic DNA fragmentation in PRL-/- thymocytes. Elevated serum PRL reduced this effect. Thymocytes from DEX-treated PRL-/- mice exhibited increased caspase-3 activation, which was inhibited in cells from PRL-/-Graft mice. Finally, elevated expression of X-linked inhibitor of apoptosis, XIAP, was observed in thymi from DEX-treated PRL -/-Graft mice. This is the first demonstration that elevated PRL antagonizes apoptosis in thymocytes exposed to GCs in vivo. These observations suggest that, under conditions of increased GCs, such as during stress, elevated PRL functions physiologically to maintain survival and function of T-lymphocytes. [less ▲]

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