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See detailLa défaillance des PME : processus et (auto)diagnostic
Crutzen, Nathalie ULg; Van Caillie, Didier ULg

Conference (2007, June 11)

This presentation provides both a large overview of the different processes leading to business failure in SMEs and a proposal of a structured tool organized as a self-diagnosis mechanism to prevent ... [more ▼]

This presentation provides both a large overview of the different processes leading to business failure in SMEs and a proposal of a structured tool organized as a self-diagnosis mechanism to prevent bankruptcy in a particular SME. [less ▲]

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See detailLa défaillance du consommateur
Renson, Florence ULg; Biquet, Christine ULg

in Biquet, Christine; Beguin, Etienne (Eds.) Le crédit hypothécaire au consommateur : Etat de la question. (2017)

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See detailLa défaillance du crédité
Renson, Florence ULg; Biquet, Christine ULg

in Biquet, Christine (Ed.) Crédit aux consommateurs et aux P.M.E (2016)

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See detailDéfaillance neurologique au cours de l'insuffisance hépatique aigüe
DETRY, Olivier ULg

Conference (2011, June 16)

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See detailDéfaire le discours d'autorité. Les 'Physiologies' à la limite de l'essai
Stienon, Valérie ULg

in Glaudes, Pierre; Lyon-Caen, Boris (Eds.) Essai et essayisme en France au XIXe siècle (2014)

Les Physiologies déferlent sous la Monarchie de juillet, alimentant les dépôts de pittoresques et prolongeant les caricatures en vitrine des passages parisiens. Si, presqu’un siècle plus tard, l’emprunt ... [more ▼]

Les Physiologies déferlent sous la Monarchie de juillet, alimentant les dépôts de pittoresques et prolongeant les caricatures en vitrine des passages parisiens. Si, presqu’un siècle plus tard, l’emprunt littéraire à la «physiologie» compose encore un effet de titre pour un essai théorique tel que la Physiologie de la critique d’Albert Thibaudet (1920), le petit genre du même nom, qui présente d’autres caractéristiques formelles et thématiques, n’est pas nettement défini par rapport à une conception et une pratique de l’essai. Au mieux peut-on lui trouver certaines parentés avec la chronique sous la forme de la notation des faits-Paris et avec une fiction d’actualité féconde en savoirs culturels et sociaux. Cette indétermination générique est particulièrement intéressante en raison de la diversité des paramètres poétiques et contextuels sur lesquels elle repose. Ce sont ces aspects qui font l’objet du présent parcours synthétique dans un corpus foisonnant, en préalable à une étude plus spécifiquement dédiée aux infinies nuances qui caractérisent ces textes. [less ▲]

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See detailDéfaire le discours d'autorité. Les Physiologies à la limite de l'essai
Stienon, Valérie ULg

Conference (2013, May 23)

Un siècle après l’essoufflement de la mode panoramique des années 1830-1840, l’emprunt littéraire à la « physiologie » constitue encore un effet de titre pour un essai théorique tel que Physiologie de la ... [more ▼]

Un siècle après l’essoufflement de la mode panoramique des années 1830-1840, l’emprunt littéraire à la « physiologie » constitue encore un effet de titre pour un essai théorique tel que Physiologie de la critique d’Albert Thibaudet. Pourtant, sous la Monarchie de Juillet, le petit genre du même nom, qui présente d’autres caractéristiques formelles et thématiques, n’est pas nettement défini par rapport à une conception et une pratique de l’essai. Au mieux peut-on lui découvrir des parentés significatives avec une certaine écriture journalistique. Les Physiologies se rapprochent en effet de la chronique sous la forme de la notation des faits-Paris et développent une fiction d’actualité féconde en savoir culturel et social. Leur engagement satirique contre le gouvernement en place et leur inscription dans un contexte de vulgarisation scientifique accrue sous l’influence londonienne de la « connaissance utile » ne suffisent pas à apparenter ces Physiologies à de la prose d’idées. Au contraire, elles contournent volontiers les conventions d’écriture du texte d’idées à travers des formes parodiques et déceptives. Il s’agit, de la sorte, d’empêcher le dogmatisme de prendre consistance en oeuvrant contre le discours d’autorité, en particulier scientifique, et contre l’assertivité qui lui est inhérente. Les informations traitées sont non seulement modelées par la distanciation humoristique et la saturation polyphonique, mais elles se trouvent également travaillées en profondeur par la contamination volontaire avec la rhétorique publicitaire dans un contexte de prolifération journalistique de la « réclame ». Le genre physiologique résiste de la sorte aux structures textuelles normatives et assertives d’exposition du savoir. Il ne se les approprie que pour mieux les disqualifier par l’humour et le raisonnement paralogique. Cette caractéristique se traduit par certaines postures discursives récurrentes, en particulier celle du faux spécialiste exhibé comme tel, posture qui consiste à feindre de se rendre ponctuellement expert d’une fraction réduite et caricaturalement recréée de la société, tout en opérant des décrochages réguliers par rapport à cette position énonciative investie d’une autorité. L’étude discursive et générique de tels modes d’expression biaisée du discours d’autorité doit permettre d’éclairer la dynamique d’écriture de l’essai dans les Physiologies parisiennes des années 1830-1840. Cet examen sera orienté par la question des redistributions qui sont ainsi rendues possibles à propos de la frontière entre l’essai-cognitif, caractérisé par une structuration théorique à vocation objectivante, et l’essai-méditation, centré sur une expressivité individualisante de l’instance énonciative. [less ▲]

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See detailDefault mode network activity and white matter integrity in healthy middle-aged ApoE4 carriers.
Patel, Krishna T.; Stevens, Michael C.; Pearlson, Godfrey D. et al

in Brain Imaging and Behavior (2013), 7(1), 60-7

Alzheimer's disease (AD) is most commonly detected during old age, but the underlying neuropathologic changes likely appear decades earlier, especially among patients possessing genetic risk factors, such ... [more ▼]

Alzheimer's disease (AD) is most commonly detected during old age, but the underlying neuropathologic changes likely appear decades earlier, especially among patients possessing genetic risk factors, such as the isoform E4 of the apolipoprotein E (ApoE4). In this study, we used magnetic resonance imaging (MRI) to assess default mode network (DMN) connectivity in 22 ApoE4 non-carriers and 14 matched ApoE4 carriers as well as white matter fractional anisotropy (FA) in 15 ApoE4 non-carriers and 11 demographically matched ApoE4 carriers. Cognitive tests were also administered. All of the participants were middle-aged adults. The analysis revealed no cognitive or white matter FA differences between carriers and non-carriers. However, in DMN regions previously implicated in AD, we did detect decreased functional connectivity. Our findings suggest that functional MRI abnormalities may be detectable well before cognitive decline or white matter changes among individuals at increased genetic risk for AD. [less ▲]

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See detailThe default mode network and EEG regional spectral power: a simultaneous fMRI-EEG study.
Neuner, Irene; Arrubla Martinez, Jorge Andres ULg; Werner, Cornelius J. et al

in PLoS ONE (2014), 9(2), 88214

Electroencephalography (EEG) frequencies have been linked to specific functions as an "electrophysiological signature" of a function. A combination of oscillatory rhythms has also been described for ... [more ▼]

Electroencephalography (EEG) frequencies have been linked to specific functions as an "electrophysiological signature" of a function. A combination of oscillatory rhythms has also been described for specific functions, with or without predominance of one specific frequency-band. In a simultaneous fMRI-EEG study at 3 T we studied the relationship between the default mode network (DMN) and the power of EEG frequency bands. As a methodological approach, we applied Multivariate Exploratory Linear Optimized Decomposition into Independent Components (MELODIC) and dual regression analysis for fMRI resting state data. EEG power for the alpha, beta, delta and theta-bands were extracted from the structures forming the DMN in a region-of-interest approach by applying Low Resolution Electromagnetic Tomography (LORETA). A strong link between the spontaneous BOLD response of the left parahippocampal gyrus and the delta-band extracted from the anterior cingulate cortex was found. A positive correlation between the beta-1 frequency power extracted from the posterior cingulate cortex (PCC) and the spontaneous BOLD response of the right supplementary motor cortex was also established. The beta-2 frequency power extracted from the PCC and the precuneus showed a positive correlation with the BOLD response of the right frontal cortex. Our results support the notion of beta-band activity governing the "status quo" in cognitive and motor setup. The highly significant correlation found between the delta power within the DMN and the parahippocampal gyrus is in line with the association of delta frequencies with memory processes. We assumed "ongoing activity" during "resting state" in bringing events from the past to the mind, in which the parahippocampal gyrus is a relevant structure. Our data demonstrate that spontaneous BOLD fluctuations within the DMN are associated with different EEG-bands and strengthen the conclusion that this network is characterized by a specific electrophysiological signature created by combination of different brain rhythms subserving different putative functions. [less ▲]

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See detailA default mode of brain function in altered states of consciousness.
Guldenmund, Justus Pieter; Vanhaudenhuyse, Audrey ULg; Boly, Mélanie ULg et al

in Archives Italiennes de Biologie (2012), 150(2-3), 107-21

Using modern brain imaging techniques, new discoveries are being made concerning the spontaneous activity of the brain when it is devoid of attention-demanding tasks. Spatially separated patches of ... [more ▼]

Using modern brain imaging techniques, new discoveries are being made concerning the spontaneous activity of the brain when it is devoid of attention-demanding tasks. Spatially separated patches of neuronal assemblies have been found to show synchronized oscillatory activity behavior and are said to be functionally connected. One of the most robust of these is the default mode network, which is associated with intrinsic processes like mind wandering and self-projection. Furthermore, activity in this network is anticorrelated with activity in a network that is linked to attention to external stimuli. The integrity of both networks is disturbed in altered states of consciousness, like sleep, general anesthesia and hypnosis. In coma and related disorders of consciousness, encompassing the vegetative state (unresponsive wakefulness syndrome) and minimally conscious state, default mode network integrity correlates with the level of remaining consciousness, offering the possibility of using this information for diagnostic and prognostic purposes. Functional brain imaging is currently being validated as a valuable addition to the standardized behavioral assessments that are already in use. [less ▲]

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See detailDefault network connectivity reflects the level of consciousness in non-communicative brain-damaged patients.
Vanhaudenhuyse, Audrey ULg; Noirhomme, Quentin ULg; Tshibanda, Luaba ULg et al

in Brain : A Journal of Neurology (2010), 133(Pt 1), 161-71

The 'default network' is defined as a set of areas, encompassing posterior-cingulate/precuneus, anterior cingulate/mesiofrontal cortex and temporo-parietal junctions, that show more activity at rest than ... [more ▼]

The 'default network' is defined as a set of areas, encompassing posterior-cingulate/precuneus, anterior cingulate/mesiofrontal cortex and temporo-parietal junctions, that show more activity at rest than during attention-demanding tasks. Recent studies have shown that it is possible to reliably identify this network in the absence of any task, by resting state functional magnetic resonance imaging connectivity analyses in healthy volunteers. However, the functional significance of these spontaneous brain activity fluctuations remains unclear. The aim of this study was to test if the integrity of this resting-state connectivity pattern in the default network would differ in different pathological alterations of consciousness. Fourteen non-communicative brain-damaged patients and 14 healthy controls participated in the study. Connectivity was investigated using probabilistic independent component analysis, and an automated template-matching component selection approach. Connectivity in all default network areas was found to be negatively correlated with the degree of clinical consciousness impairment, ranging from healthy controls and locked-in syndrome to minimally conscious, vegetative then coma patients. Furthermore, precuneus connectivity was found to be significantly stronger in minimally conscious patients as compared with unconscious patients. Locked-in syndrome patient's default network connectivity was not significantly different from controls. Our results show that default network connectivity is decreased in severely brain-damaged patients, in proportion to their degree of consciousness impairment. Future prospective studies in a larger patient population are needed in order to evaluate the prognostic value of the presented methodology. [less ▲]

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See detailDéfaut d'observance et inertie therapeutique en obstétrique.
Masson, Véronique ULg; Petit, Philippe ULg; Foidart, Jean-Michel ULg

in Revue Médicale de Liège (2010), 65(5-6), 395-8

Observance around pregnancy includes two parts: what can be done before conception and what must be done during pregnancy. Preconception care, if efficaciously performed, offerss real benefits for foetal ... [more ▼]

Observance around pregnancy includes two parts: what can be done before conception and what must be done during pregnancy. Preconception care, if efficaciously performed, offerss real benefits for foetal and child development. Its efficacy will depends on the involvement and motivation of physicians and particularly also on the patient's observance. In this article we summarize essential pieces of advice to be given to each patient before pregnancy. Therapeutic inertia in obstetrics presents two differents aspects: on the one hand, the delay to initiate a therapeutic strategy when a complication arises such as a postpartum hemorrhage; on the other hand, the continuation of obsolete practices, such as the therapy of uterine hypersystolia. [less ▲]

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See detailDéfauts d'orientation et de battement
Debongnie, Jean-François ULg

Report (2008)

The problem of orientation or runout errors being formulated, it is firt noted that these errors necessarily include the form errors of the measured part. The second problem is the correct asseement of a ... [more ▼]

The problem of orientation or runout errors being formulated, it is firt noted that these errors necessarily include the form errors of the measured part. The second problem is the correct asseement of a simulated reference when the reference surface is of imperfect form. The logical choice would be perfect form having the least maximal distance to the physical one. But this choice being a difficult one, the best approximation in the least square sense if often chosed. The effect of this reference perturbation is studied. [less ▲]

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See detailLes défauts des arbres
Jourez, Benoît ULg

Conference given outside the academic context (2010)

Passage en revue des défauts du bois sur les arbres sur pied et abattus

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See detailLes défauts héréditaires dans la race blanc bleu belge
Sartelet, Arnaud ULg

in Point Vétérinaire (2013), 339

Cette fiche présente les tableaux cliniques et les données épidémiologiques (fondateurs, fréquences de chaque mutation) et génétiques (cartographie, gènes et mutations causales) de chaque maladie.

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See detailDefect growth in model panel paintings by full field interferometry
Kouloumpi, E.; Moutsatsou, A.; Torres, L. et al

Conference (2008, November)

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See detailA defect of thymus-dependent self-tolerance to insulin-secreting ß cells in the pathogenesis of type 1 diabetes
Hansenne, Isabelle; Louis, Céline; Geenen, Vincent ULg

in Pontell, E. B. (Ed.) Immune Tolerance Research Developments (2008)

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See detailDefect segmentation on 'Jonagold' apples using colour vision and a Bayesian classification method
Leemans, Vincent ULg; Magein, Hugo ULg; Destain, Marie-France ULg

in Computers & Electronics in Agriculture (1999), 23(1), 43-53

This paper shows how the information enclosed in a colour image of a bi-colour apple can be used to segment defects. A method to segment pixels, based on a Bayesian classification process, is proposed ... [more ▼]

This paper shows how the information enclosed in a colour image of a bi-colour apple can be used to segment defects. A method to segment pixels, based on a Bayesian classification process, is proposed. The colour frequency distributions of the healthy tissue and of the defects were used to estimate the probability distribution of each class. The results showed that most defects, namely bitter pit, fungi attack, scar tissue, frost damages, bruises, insect attack and scab, are segmented. However, russet was sometimes confused with the transition area between ground and blush colour. (C) 1999 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailDefective carbon nanotubes for single-molecule sensing
Zanolli, Zeila ULg; Charlier, Jean-Christophe

in Physical Review. B, Condensed Matter and Materials Physics (2009), 80(15),

The sensing ability of metallic carbon nanotubes toward various gas species (NO2, NH3, CO, H2O, and CO2) is investigated via ab initio calculations and Nonequilibrium Green’s Functions technique, focusing ... [more ▼]

The sensing ability of metallic carbon nanotubes toward various gas species (NO2, NH3, CO, H2O, and CO2) is investigated via ab initio calculations and Nonequilibrium Green’s Functions technique, focusing on the salient features of the interaction between molecules and oxygenated-defective tubes. As the adsorption/desorption of molecules induces modulations on the electrical conductivity of the tube, the computation of the electron quantum conductance can be used to predict gas detection. Indeed, the analysis of the conductance curve in a small energy range around the Fermi energy reveal that oxygenated-defective nanotubes are sensitive to NO2, NH3, CO, and H2O, but not to CO2. Molecular selectivity can also be provided by the nature of the charge transfer. [less ▲]

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