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See detailLocation of transcriptional regulatory sequences within the prolactin family genes.
Belayew, A.; Bellefroid, Eric J.; Berwaer, M. et al

in Neuroendocrine Perspectives. (1986)

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See detailLochkovian (earliest Devonian) miospores from the Solimoes Basin, northwestern Brazil
Rubinstein, C.; Melo, J. H. G.; Steemans, Philippe ULg

in Review of Palaeobotany and Palynology (2005), 133(1-2), 91-113

Eighteen core samples from PETROBRAS well 1-JD-1-AM (Jandiatuba area. Solimoes Basin. northwestern Brazil) have been studied for miospores. Fifty-three species are identified. This assemblage is ... [more ▼]

Eighteen core samples from PETROBRAS well 1-JD-1-AM (Jandiatuba area. Solimoes Basin. northwestern Brazil) have been studied for miospores. Fifty-three species are identified. This assemblage is tentatively correlated with the Z Phylozone of the BZ Oppel Zone (Steemans, P., 1989. Palynostratigraphie de l'Eodevonien dans l'ouest de l'Europe. Professional Paper. Memoires Explicatifs pour les Caries Geologiques and Mineralogiques de la Belgique, 27, pp. 453.), dated late Lochkovian, This is in accordance with previous age determinations based on chitinozoans and acritarchs. Numerous representatives of the miospore genus Dictyotriletes are observed. These enable recognition of the Dictyotriletes emsiensis morphon. an informal classification unit which includes Dictyotriletes granulatus, D. emsiensis, Dictyotriletes cf. subgranifer, specimens previously misassigned to D. subgranifer and some Dictyotriletes spp. provisionally left in open nomenclature. Since all intermediate forms from typical D. granulatus to typical D. emsiensis coexist. it is currently difficult to determine the base of "F" Interval Biozone in South America as originally defined in Western Europe. It is suggested. therefore. that the base of the "Ems" Biozone defined in Brazil cannot be correlated with the base of die "E" Biozone. Instead. it be included in an interval of uncertainty ranging from the European "Si" to "E" Biozones. Indeed. the underlying "NsZ" Biozone from South America, contains species not known below the "Si" Biozone. Here, the D. emsiensis morphon Assemblage Zone is erected, which may, be coeval with the "N" through "E" Biozones of Western Europe. The PISA palynoflora from the Parana Basin is also attributed to this new biozone. However, in the absence of species observed in the "BZ" Biozone (and also in the Solimoes Basin). the PISA assemblage could be somewhat older than that of well 1-JD-1-AM. (C) 2004 Elsevier B.V. All rights reserved. [less ▲]

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See detailLochkovian (Early Devonian) acritarchs and prasinophytes from the Solimões Basin, nortwestern Brazil
Rubinstein, C. V.; Le Hérissé, A.; Steemans, Philippe ULg

in Neues Jahrbuch für Geologie und Palaontologie. Abhandlungen (2008), 249(2), 167-184

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See detailLochkovian (early Lower Devonian) acritarchs and miospores from the Solimões Basin, northern Brazil
Rubinstein, C. V.; Le Hérissé, A.; Steemans, Philippe ULg

Conference (2000)

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See detailThe Lochkovian of the "Carrière Schauss" near Gdoumont (SE Stavelot Massif)
Steemans, Philippe ULg; Bless, M. J. M.; Poty, Edouard ULg

Conference (1990)

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See detailLocindus, le jeu de la localisation industrielle
Merenne-Schoumaker, Bernadette ULg; Bianchet, Bruno; Demeuse, Yves

in Bulletin de la Société Géographique de Liège (1992), (28), 41-56

Any location decision takes into account many variables and processes. In order to apprehend them, we propose a "simulation game". Indeed, this one presents the great merit of putting the student in a ... [more ▼]

Any location decision takes into account many variables and processes. In order to apprehend them, we propose a "simulation game". Indeed, this one presents the great merit of putting the student in a problematic situation and leads him to understand certain attitudes. However, a good finality information, and on the other hand, a fundamental learning. Theoretical knowledge so envisaged will permit a better understanding of the decision process and will improve its efficency. [less ▲]

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See detailLock Gates - Innovative concepts
Rigo, Philippe ULg; Herbillon, Vincent ULg; Thiry, Arnaud ULg

in PIANC Workshop 'INNOVATIONS IN NAVIGATION LOCK DESIGN' (2009, October)

This paper introduces some new innovative concepts identifies by the INCOM WG29 and reported in the PIANC report 106 “Innovations in Navigation Lock Design”, 2009.The paper focusses on innovation in LOCK ... [more ▼]

This paper introduces some new innovative concepts identifies by the INCOM WG29 and reported in the PIANC report 106 “Innovations in Navigation Lock Design”, 2009.The paper focusses on innovation in LOCK GATES [less ▲]

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See detailLock gates - Part B: Ship impact
Rigo, Philippe ULg; Gernay, Thomas ULg

in PIANC International Workshop, 15-16 October 2009, Edt. Ph Rigo, PIANC, Brussels (2009, October)

This paper presents an overview of the state of art of ship impact analysis on lock gates. First, the different kinds of analysis are presented, which are: empirical approach, analytical-rational approach ... [more ▼]

This paper presents an overview of the state of art of ship impact analysis on lock gates. First, the different kinds of analysis are presented, which are: empirical approach, analytical-rational approach, and finite element methods performed with quasi-static analysis or dynamic analysis. A discussion on the hypothesis and the calculus time required by each method is carried out with a view to clarify the state-of-practice for engineers. Then, a quasi-static analysis by finite elements modeling a ship impact is performed on the specific case of a new lock gate designed in Belgium for the “Seine-Escaut Est” project. The results suggest some design recommendations to provide a ductile behavior and so impact strength for the gate structure. [less ▲]

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See detailLock-in in agrifood chains and deliberative research
Stassart, Pierre M ULg

Scientific conference (2007)

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See detailLe Locked-In Syndrome : la conscience emmurée
Bruno, Marie-Aurélie ULg; Pellas, F.; Schnakers, Caroline ULg et al

in Revue Neurologique (2008), 164

The Locked-In syndrome(LIS) is defined by: (i) the presence of sustained eye opening (bilateral ptosis should be ruled out as a complicating factor);(ii) preserved awareness; (iii) aphonia or hypophonia ... [more ▼]

The Locked-In syndrome(LIS) is defined by: (i) the presence of sustained eye opening (bilateral ptosis should be ruled out as a complicating factor);(ii) preserved awareness; (iii) aphonia or hypophonia; (iv) quadriplegia or quadriparesis; and (v) a primary mode of communication that uses vertical or lateral eye movement or blinking. Acute ventral pontine lesions are its most common cause. Following such brainstem lesions patients may remain comatose for sometime and then gradually awaken, remaining paralyzed and voiceless, superficially resembling the vegetative state. Background. – It has been shown that more than half of the time physicians fail to recognize early signs of awareness in LIS. Given appropriate medical care,life expectancy may be several decades but the chances of good motor recovery remain small. Eye-controlled computer technology now allows LIS patients to communicate and control their environment. Recent studies show that most LIS patients self-report meaningful quality of life and the demand for euthanasia is infrequent. Conclusion. – Patients suffering from LIS should not be denied the right to die – and to die with dignity –but also they should not be denied the right to live–and to live with dignity and the best possible pain and symptom management and revalidation. [less ▲]

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See detailThe locked-in syndrome : what is it like to be conscious but paralyzed and voiceless?
Laureys, Steven ULg; Pellas, Frédéric; Van Eeckhout, Philippe et al

in Progress in Brain Research (2005), 150(Boundaries of Consciousness: Neurobiology and Neuropathology), 495-511

The locked-in syndrome (pseudocoma) describes patients who are awake and conscious but selectively deefferented, i.e., have no means of producing speech, limb or facial movements. Acute ventral pontine ... [more ▼]

The locked-in syndrome (pseudocoma) describes patients who are awake and conscious but selectively deefferented, i.e., have no means of producing speech, limb or facial movements. Acute ventral pontine lesions are its most common cause. People with such brainstem lesions often remain comatose for some days or weeks, needing artificial respiration and then gradually wake up, but remaining paralyzed and voiceless, superficially resembling patients in a vegetative state or akinetic mutism, In acute locked-in syndrome (LIS), eye-coded communication and evaluation of cognitive and emotional functioning is very limited because vigilance is fluctuating and eye movements may be inconsistent, very small, and easily exhausted. It has been shown that more than half of the time it is the family and not the physician who first realized that the patient was aware. Distressingly, recent studies reported that the diagnosis of LIS on average takes over 2.5 months. In some cases it took 4-6 years before aware and sensitive patients, locked in an immobile body, were recognized as being conscious. Once a LIS patient becomes medically stable, and given appropriate medical care, life expectancy increases to several decades. Even if the chances of good motor recovery are very limited, existing eye-controlled, computer-based communication technology currently allow the patient to control his environment, use a word processor coupled to a speech synthesizer, and access the worldwide net. Healthy individuals and medical professionals sometimes assume that the quality of life of an LIS patient is so poor that it is not worth living. On the contrary, chronic LIS patients typically self-report meaningful quality of life and their demand for euthanasia is surprisingly infrequent. Biased clinicians might provide less aggressive medical treatment and influence the family in inappropriate ways. It is important to stress that only the medically stabilized, informed LIS patient is competent to consent to or refuse life-sustaining treatment. Patients suffering from LIS should not be denied the right tot die - and to die with dignity - but also, and more importantly, and pain and symptom management. In our opinion, there is an urgent need for a renewed ethical and medicolegal framework for our care of locked-in patients. [less ▲]

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See detailLocked-in syndrome et états de conscience altérée: comment détecter la conscience?
Vanhaudenhuyse, Audrey ULg

in Pellas, Frederique; Kiefer; Weiss (Eds.) et al Entretiens de Médecine Physique et de Réadaptation (2007)

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See detailLocked-in syndrome et états de conscience altérée: comment détecter la conscience?
Vanhaudenhuyse, Audrey ULg; Bruno, Marie-Aurélie ULg; Schnakers, Caroline ULg et al

in Pellas, Frederique; Kiefer, C; Weiss, JJ (Eds.) et al Eveil de coma et états limites (2007)

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See detailLocked-in syndrome in children: report of five cases and review of the literature
Bruno, Marie-Aurélie ULg; Schnakers, C.; Damas, François ULg et al

in Pediatric Neurology (2009), 41

The locked-in syndrome is a rare neurologic disorder defined by (1) the presence of sustained eye opening; (2) preserved awareness; (3) aphonia or hypophonia; (4) quadriplegia or quadriparesis; and (5) a ... [more ▼]

The locked-in syndrome is a rare neurologic disorder defined by (1) the presence of sustained eye opening; (2) preserved awareness; (3) aphonia or hypophonia; (4) quadriplegia or quadriparesis; and (5) a primary mode of communication that uses vertical or lateral eye movement or blinking. Five cases are reported here, and previous literature is reviewed. According to the literature, the most common etiology of locked-in syndrome in children is ventral pontine stroke, most frequently caused by a vertebrobasilar artery thrombosis or occlusion. In terms of prognosis, 35% of pediatric locked-in syndrome patients experienced some motor recovery, 26% had good recovery, 23% died, and 16% remained quadriplegic and anarthric. These findings raise important ethical considerations in terms of quality of life and end-of-life decisions in such challenging cases. [less ▲]

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See detailLocked-in: don't judge a book by its cover.
Bruno, Marie-Aurélie ULg; Bernheim, J. L.; Schnakers, Caroline ULg et al

in Journal of Neurology, Neurosurgery & Psychiatry (2008), 79(1), 2

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See detailLe Locometrix : outil de dépistage des troubles de la marche chez la personne âgée ?
Gillain, Sophie ULg; Warzee, Emmanuelle ULg; Lekeu, Françoise ULg et al

in Abstract Book des 10èmes Journées d’Automne de la Société Belge de Gérontologie et de Gériatrie (2007, October)

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See detailLocomotion d'un robot mobile
Lens, Stéphane ULg

Master's dissertation (2008)

Dans le domaine de la robotique mobile, l’étude de la locomotion possède une place prépondérante. De nombreuses approches et solutions peuvent être envisagées et il convient d’apporter un soin particulier ... [more ▼]

Dans le domaine de la robotique mobile, l’étude de la locomotion possède une place prépondérante. De nombreuses approches et solutions peuvent être envisagées et il convient d’apporter un soin particulier quant à leur sélection afin de garantir les performances du système final. Ce travail de fin d’études a pour objectif la conception complète du système de locomotion d’un robot mobile participant à un concours de robotique. La réalisation des cartes électroniques de commande pour les moteurs, ainsi que la synthèse des lois de contrôle sont étudiées en détails. Ces lois seront principalement divisées en deux phases : d’une part, la génération d’une trajectoire réalisable, et d’autre part, une régulation sur cette trajectoire grâce, entre autres, à un contrôle local de la vitesse des roues motrices. Ce travail se termine, enfin, par une implémentation pratique du système étudié et par une évaluation de ses performances. [less ▲]

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See detailLocomotives à vapeur, communautés virtuelles et classification décimale universelle. Propos sur l'échantillonnage en recherche qualitative
Lejeune, Christophe ULg

Scientific conference (2013, November 26)

La logique de la découverte en recherche qualitative est souvent mal comprise, y compris par certains de ses praticiens. Les débats autour de l'échantillonnage, de la représentativité et des études de cas ... [more ▼]

La logique de la découverte en recherche qualitative est souvent mal comprise, y compris par certains de ses praticiens. Les débats autour de l'échantillonnage, de la représentativité et des études de cas, en particulier, entretiennent une profonde incompréhension entre les chercheurs. En partant de l'histoire de ses propres terrains, Christophe Lejeune illustre comment l'histoire et l'ethnographie se complètent pour relier la documentation, les logiciels libres et le tourisme ferroviaire. [less ▲]

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See detailLocomotor effects of ethanol and acetaldehyde after peripheral and intraventricular injections in Swiss and C57BL/6J mice
Tambour, Sophie ULg; Didone, Vincent ULg; Tirelli, Ezio ULg et al

in Behavioural Brain Research (2006), 172(1), 145-154

Several studies have suggested that acetaldehyde, the first product of ethanol metabolism, is involved in the locomotor stimulant effects of ethanol in mice, although it has never been formally tested ... [more ▼]

Several studies have suggested that acetaldehyde, the first product of ethanol metabolism, is involved in the locomotor stimulant effects of ethanol in mice, although it has never been formally tested whether acetaldehyde injected directly into the brain of mice has stimulant properties. Recently, it was also shown in rats that both ethanol and acetaldehyde can induce opposite locomotor effects according to the route of administration. Whereas peripheral administrations of ethanol and acetaldehyde induced locomotor depressant effects, their infusions directly into the brain produced locomotor stimulation. The aim of the present study was to characterize in mice the locomotor effects of ethanol and acetaldehyde injected either peripherally by the intraperitoneal route or centrally into the brain ventricles. Additionally, the effects of ethanol and acetaldehyde were compared in two strains of mice known for their differential sensitivity to the locomotor effects of ethanol, namely Swiss and C57BL/6J mice. Ethanol induced a biphasic effect on locomotor activity in Swiss mice, with stimulant effects at low to moderate doses and depressant effects at higher doses. Such a profile of effects was observed whatever the route of administration, peripheral or central. In C57BL/6J mice, ethanol only induced monophasic depressant effects. In this mouse strain, no evidence of the stimulant effects of ethanol was found after either an i.p. or an i.c.v. administration of ethanol. In contrast to ethanol, acetaldehyde yielded only depressant effects in both strains of mice after both peripheral and central administrations. These results indicate that the route of administration does not alter the locomotor effects of ethanol and acetaldehyde in mice. Additionally, the present study shows that the stimulant properties of acetaldehyde, even after direct infusion into the brain, are not as obvious as previously speculated. [less ▲]

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See detailThe locomotory system of pearlfish Carapus acus: What morphological features are characteristic for highly flexible fishes?
Schwartz, Catherine; Parmentier, Eric ULg; Whier, Stefan et al

in Journal of Morphology (2012), 273

The body curvature displayed by fishes differs remarkably between species. Some nonmuscular features (e.g., number of vertebrae) are known to influence axial flexibility, but we have poor knowledge of the ... [more ▼]

The body curvature displayed by fishes differs remarkably between species. Some nonmuscular features (e.g., number of vertebrae) are known to influence axial flexibility, but we have poor knowledge of the influence of the musculotendinous system (myosepta and muscles). Whereas this system has been described in stiffbodied fishes, we have little data on flexible fishes. In this study, we present new data on the musculotendinous system of a highly flexible fish and compare them to existing data on rigid fishes. We use microdissections with polarized light microscopy to study the three-dimensional anatomy of myoseptal tendons, histology and immunohistology to study the insertion of muscle fiber types into tendons, and l-CT scans to study skeletal anatomy. Results are compared with published data from stiff-bodied fishes. We identify four important morphological differences between stiff-bodied fishes and Carapus acus: (1) Carapus bears short tendons in the horizontal septum, whereas rigid fishes have elongated tendons. (2) Carapus bears short lateral tendons in its myosepta, whereas stiff-bodied fishes bear elongated tendons. Because of its short myoseptal tendons, Carapus retains high axial flexibility. In contrast, elongated tendons restrict axial flexibility in rigid fishes but are able to transmit anteriorly generated muscle forces through long tendons down to the tail. (3) Carapus bears distinct epineural and epipleural tendons in its myosepta, whereas these tendons are weak or absent in rigid fishes. As these tendons firmly connect vertebral axis and skin in Carapus, we consider them to constrain lateral displacement of the vertebral axis during extreme body flexures. (4) Ossifications of myoseptal tendons are only present in C. acus and other more flexible fishes but are absent in rigid fishes. The functional reasons for this remain unexplained. [less ▲]

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