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See detailMétaplasie osseuse de l'endomètre: deux cas rapportés
Mutsers, Emilie ULg; Chantraine, Frédéric ULg; Delbecque, Katty ULg et al

in Gunaïkeia (2010), 15(4),

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See detailMetaplastic effect of apamin on LTP and paired-pulse facilitation
Ris, L.; Capron, B.; Sclavons, C. et al

in Learning & Memory (2007), 14(6), 390-399

In area CA1 of hippocampal slices, a single 1-sec train of 100-Hz stimulation generally triggers a short-lasting long-term potentiation (S-LTP) of 1-2 h. Here, we found that when such a train was applied ... [more ▼]

In area CA1 of hippocampal slices, a single 1-sec train of 100-Hz stimulation generally triggers a short-lasting long-term potentiation (S-LTP) of 1-2 h. Here, we found that when such a train was applied 45 min after application of the small conductance Ca2+-activated K+ (SK) channel blocker apamin, it induced a long-lasting LTP (L-LTP) of several hours, instead of an S-LTP. Apamin-induced SK channel blockage is known to resist washing. Nevertheless, the aforementioned effect is not a mere delayed effect; it is metaplastic. Indeed, when a single train was delivered to the Schaffer's collaterals during apamin application, it induced an S-LTP, like in the control situation. At the moment of this LTP induction (15th min of apamin application), the SK channel blockage was nevertheless complete. Indeed, at that time, under the influence of apamin, the amplitude of the series of field excitatory postsynaptic potentials (fEPSPs) triggered by a stimulation train was increased. We found that the metaplastic effect of apamin on LTP was crucially dependent on the NO-synthase pathway, whereas the efficacy of the NMDA receptors was not modified at the time of its occurrence. We also found that apamin produced an increase in paired-pulse facilitation not during, but after, the application of the drug. Finally, we found that the induction of each of these two metaplastic phenomena was mediated by NMDA receptors. A speculative unitary hypothesis to explain these phenomena is proposed. [less ▲]

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See detailMetapopulation dynamics of the bog fritillary butterfly: Modelling the effect of habitat fragmentation
Sawchik, J.; Dufrêne, Marc ULg; Lebrun, Philippe et al

in Acta Oecologica (2002), 23(5), 287-296

Population viability analysis (PVA) and metapopulation theory are valuable tools to model the dynamics of spatially structured populations. In this article we used a spatially realistic population dynamic ... [more ▼]

Population viability analysis (PVA) and metapopulation theory are valuable tools to model the dynamics of spatially structured populations. In this article we used a spatially realistic population dynamic model to simulate the trajectory of a Proclossiana eunomia metapopulation in a network of habitat patches located in the Belgian Ardenne. Sensitivity analysis was used to evaluate the relative influence of the different parameters on the model output. We simulated habitat loss by removing a percentage of the original habitat, proportionally in each habitat patch. Additionally, we evaluated isolation and fragmentation effects by removing and dividing habitat parches from the network, respectively. The model predicted a slow decline of the metapopulation size and occupancy. Extinction risks predicted by the model were highly sensitive to environmental stochasticity and carrying capacity. For a determined level of habitat destruction, the expected lifetime of the metapopulation was highly dependent on the spatial configuration of the landscape. Moreover, when the proportion of removed habitat is above 40% of the original habitat, the loss of whole patches invariably leads to the strongest reduction in metapopulation viability. © 2002 Éditions scientifiques et médicales Elsevier SAS. All rights reserved. [less ▲]

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See detailMétapsychologie de l'adolescence
Stassart, Martine ULg

in Cahiers du CEP (Centre d'Etudes Pathoanalytiques) (1995), 5(2), 71-104

Before 1960 there was very few psychoanalytical litterature about adolescence. Since 50 years, there is plenty of articles on that subject. The author comments the most important psychoanalytical writers ... [more ▼]

Before 1960 there was very few psychoanalytical litterature about adolescence. Since 50 years, there is plenty of articles on that subject. The author comments the most important psychoanalytical writers who brought a new and useful thought thereabout. [less ▲]

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See detailMetastability bounds on the two Higgs doublet model
Barroso, Augusto; Ferreira, Pedro; Ivanov, Igor ULg et al

in Journal of High Energy Physics [=JHEP] (2013), 1306

In the two Higgs doublet model, there is the possibility that the vacuum where the universe resides in is metastable. We present the tree-level bounds on the scalar potential parameters which have to be ... [more ▼]

In the two Higgs doublet model, there is the possibility that the vacuum where the universe resides in is metastable. We present the tree-level bounds on the scalar potential parameters which have to be obeyed to prevent that situation. Analytical expressions for those bounds are shown for the most used potential, that with a softly broken Z 2 symmetry. The impact of those bounds on the model’s phenomenology is discussed in detail, as well as the importance of the current LHC results in determining whether the vacuum we live in is or is not stable. We demonstrate how the vacuum stability bounds can be obtained for the most generic CP-conserving potential, and provide a simple method to implement them. [less ▲]

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See detailMetastable bouncing droplets
Terwagne, Denis ULg; Gilet, Tristan ULg; Vandewalle, Nicolas ULg et al

in Physics of Fluids (2009), 21

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See detailThe Metastable Décomposition of Methane.
Flamme, J. P.; Wankenne, H.; Locht, Robert ULg et al

in International Conference on the Physics of Electronic and Atomic Collisions: abstract of papers. Volume 1. (1977)

The metastable decomposition of CH(D)4+ into CH(D)3+ and H(D) is investigated in a tandem mass spectrometer. The results are interpreted in terms of rotational predissociation of CH(D)4+. A semi-classical ... [more ▼]

The metastable decomposition of CH(D)4+ into CH(D)3+ and H(D) is investigated in a tandem mass spectrometer. The results are interpreted in terms of rotational predissociation of CH(D)4+. A semi-classical model is developed. [less ▲]

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See detailMetastable N/2P/ atoms in the aurora
Gérard, Jean-Claude ULg; Harang, O. E.

in Journal of Geophysical Research (1980), 85

Auroral spectra have been obtained in the 3380- to 3560-A region to study the forbidden N I 4S-2P doublet at 3466 A. The forbidden N I 3466 A/N2 Vegard-Kaplan ratio is found to remain constant. This is in ... [more ▼]

Auroral spectra have been obtained in the 3380- to 3560-A region to study the forbidden N I 4S-2P doublet at 3466 A. The forbidden N I 3466 A/N2 Vegard-Kaplan ratio is found to remain constant. This is in agreement with the results of a model calculation showing that the dominant source of N(2P) atoms is dissociative excitation of N2 by fast electrons, and the major quenching agent is atomic oxygen. A value of about 5 x 10 to the 9th/cu cm sec is deduced for the ratio of the N(2P) quantum yield to the atomic oxygen deactivation coefficient. [less ▲]

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See detailMetastable oxygen ion distribution and related optical emission in the aurora.
Gérard, Jean-Claude ULg

in Annales de Géophysique (1970), 26

Not Available

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See detailMétastase septique dorsale secondaire d’un abcès rétropharyngé responsable d’une tétraparésie
Kaux, Jean-François ULg; LENELLE, Jacques ULg; FRIPPIAT, Frédéric ULg et al

in Revue Neurologique (2011), 167(8-9), 638-640

Introduction: Peri-tonsillar abscess remains one of the most frequent serous complications of oropharyngeal or dental infections. It can evolve to parapharyngeal and/or retropharyngeal spaces. It can be ... [more ▼]

Introduction: Peri-tonsillar abscess remains one of the most frequent serous complications of oropharyngeal or dental infections. It can evolve to parapharyngeal and/or retropharyngeal spaces. It can be life-threatning and, more rarely, neurological complications are described. Observations: We report the case of a 56 year old woman who developed within few days a progressive tetraparesia due to cervical medullary compression. This compression was consecutive to an epidurite which was a complication of a retropharyngeal abscess. The only surgical act was a cervicotomy to drain the abscess and identify the pathological germ. A targeted antibiotherapy was quickly begun. The recovery was obtained rather quickly and the neurological evolution was good. After one year, the cervical spine presents a post-infectious deformation without sign of root or spinal-cord compression. Conclusion: A cervical tetraparesia induced by spondylodiscitis and epiduritis following a retropharyngeal abscess with Staphylococcus aureus is a rare complication. Adequate diagnosis, as fast as possible, is mandatory in order to carry out an adapted antibiotherapy in the hopes of a complete recovery. The place of surgery on the spine remains to be specified. [less ▲]

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See detailMétastase synoviale d'un cancer colique se présentant comme une arthrite du genou. Caractérisation par tomographie à émission de positons au 18FDG
Beckers, C.; Foidart, J.; Thiry, Albert ULg et al

in Revue Médicale de Liège (2002), 57(5), 467-474

A case of carcinomatous monoarthritis involving the left knee due to colonic adenocarcinoma is described. Large recurrent synovial effusion, that will be later hematic, lytic lesion of the bones and ... [more ▼]

A case of carcinomatous monoarthritis involving the left knee due to colonic adenocarcinoma is described. Large recurrent synovial effusion, that will be later hematic, lytic lesion of the bones and chondrolysis were noted. Knee positron emitting tomography scan using FDG (FDG-PET) revealed a diffuse increased uptake in soft tissues assumed to be synovium, the hypertrophy of which was identified by ultrasonography. Whole body PET scan showed extensive lymph node, visceral and bone metastases, suggesting that the increase in the synovium could also be of metastatic origin. The final diagnosis of synovial carcinomatosis secondary to the known colonic adenocarcinoma was confirmed by histological analysis of biopsies obtained by arthroscopy. A review of the literature is realised. To our knowledge, this is the first synovial metastasis studied by FDG-PET. [less ▲]

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See detailMetastase unique cervicale d'un cancer du sein
Courtois, Anne-Catherine ULg; COLLIGNON, Joëlle ULg; Bruyère, Pierre-Julien et al

in Revue Médicale de Liège (2011), 66(5-6), 285-287

We report a rare case of single cervical metas- tasis of breast cancer. Bone metastases are the most frequent in breast cancer. early diagnosis combined with the new the- rapeutic advances have ... [more ▼]

We report a rare case of single cervical metas- tasis of breast cancer. Bone metastases are the most frequent in breast cancer. early diagnosis combined with the new the- rapeutic advances have considerably improved the quality of life and increased the survival. imaging plays a great role in the diagnosis, particularly scintigraphy and radiography, but sometimes also ct and Mri. the treatment is currently not standardized and it combines hormone therapy, chemotherapy, radiotherapy, and / or surgery. [less ▲]

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See detailMétastases ganglionnaires, hépatiques et osseuses d'un chemodectome carotidien. A propos d'un cas
DEFRAIGNE, Jean ULg; Limet, Raymond ULg

in Journal de Chirurgie (1997), 134(7-8), 336-9

A case of malignant carotid body tumor with nodal, hepatic and bone metastases is reported. Carotid body chemodectomas are slow-growing tumors which invade local structures. These tumors are usually ... [more ▼]

A case of malignant carotid body tumor with nodal, hepatic and bone metastases is reported. Carotid body chemodectomas are slow-growing tumors which invade local structures. These tumors are usually benign but can occasionally produce local and distant metastases. Development of metastatic localizations is the only formal proof of malignancy as histology cannot distinguish between benign and malignant chemodectomas. Bilateral carotid arteriography gives the diagnosis. Surgery is the basis of treatment and should be performed early in the course to limit operative complications. Radiotherapy can be given as adjuvant treatment. [less ▲]

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See detailLas metástasis del goce. Seis ensayos sobre la mujer y la causalidad
Žižek, Slavoj; Willson, Patricia ULg

Book published by Ediciones Paidós (2003)

Detailed reference viewed: 127 (22 ULg)
See detailMétathèse des oléfines et réactions radicalaires catalysées par des complexes ruthénium-carbène N-hétérocycliques
Demonceau, Albert ULg; Delfosse, Sébastien; Richel, Aurore ULg et al

Scientific conference (2005, November)

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See detailMetathesis
Delaude, Lionel ULg; Noels, Alfred ULg

in Seidel, A. (Ed.) Kirk-Othmer encyclopedia of chemical technology (2007)

A review. The scope of the reaction, theory and industrial application of alkene metathesis, including initiators and catalysts are described. Metathesis polymn. to polyolefins, alkyne metathesis, and ene ... [more ▼]

A review. The scope of the reaction, theory and industrial application of alkene metathesis, including initiators and catalysts are described. Metathesis polymn. to polyolefins, alkyne metathesis, and ene-yne metathesis are also considered. [less ▲]

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See detailMetathesis access to monocyclic iminocyclitol-based therapeutic agents
Dragutan, Ileana; Dragutan, Valerian; Mitan, Carmen et al

in Beilstein Journal Of Organic Chemistry (2011), 7

By focusing on recent developments on natural and non-natural azasugars (iminocyclitols), this review bolsters the case for the role of olefin metathesis reactions (RCM, CM) as key transformations in the ... [more ▼]

By focusing on recent developments on natural and non-natural azasugars (iminocyclitols), this review bolsters the case for the role of olefin metathesis reactions (RCM, CM) as key transformations in the multistep syntheses of pyrrolidine-, piperidine-and azepane-based iminocyclitols, as important therapeutic agents against a range of common diseases and as tools for studying metabolic disorders. Considerable improvements brought about by introduction of one or more metathesis steps are outlined, with emphasis on the exquisite steric control and atom-economical outcome of the overall process. The comparative performance of several established metathesis catalysts is also highlighted. [less ▲]

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See detailLes métaux en trace dans la tourbière du Misten. Historique de la pollution dans les Hautes Fagnes depuis le Moyen-Age
De Vleeschouwer, F.; Gérard, L.; Le Roux, G. et al

in Hautes Fagnes (2004), 256

Detailed reference viewed: 18 (2 ULg)