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See detailPreliminary study on the ecomorphological signification of the sound-producing complex in Carapidae
Parmentier, Eric ULg; Chardon, Michel ULg; Vandewalle, Pierre ULg

in Van Damme, Raoul; Aerts, Pieter; D'Août, Kristiaan (Eds.) et al Topics in Functional and Ecological Vertebrate Morphology (2002)

Carapidae can be classified in four ecological groups : pelagic, dermersal, commensal and parasitic. Carapidae display otophysic structures associated with the anterior part of the swim bladder and highly ... [more ▼]

Carapidae can be classified in four ecological groups : pelagic, dermersal, commensal and parasitic. Carapidae display otophysic structures associated with the anterior part of the swim bladder and highly modified labyrinths, which suggest particular acoustic performances. The commensal and parasitic species have the best developed sound-producing features and also the thickest sagitta within the largest otic cavity, and surrounded by the thinnest cranial wall. However, these features do not necessarily imply a direct relation between the sound emission and reception in a given species but suggest a selective pressure lying in the habitat use of the species. The structures involved in sound-production and hearing are seemingly adapted to match the loss of energy of the sonic vibrations when travelling through the host tissues. [less ▲]

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See detailPreliminary survey of the palynological content of the Lower Devonian in the Oesling, Luxembourg
Steemans, Philippe ULg; Debbaut, Vincent ULg; Faber, A.

in Bulletin de la Société des Naturalistes Luxembourgeois (2000), 100

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See detailPreliminary survey on the impact of Schmallenberg virus on sheep flocks in south of Belgium
Saegerman, Claude ULg; Martinelle, Ludovic ULg; Dal Pozzo, Fabiana ULg et al

in Transboundary and Emerging Diseases (2014), 61(5), 469-472

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See detailA preliminary telemetry investigation on the obstacles to anadromous Salmonids migration in spawning streams of the Belgian Ardennes (river Meuse bassin)
Ovidio, Michaël ULg; Birtles, Cymon; Baras, Etienne et al

in Leclerc, Michel (Ed.) Proceedings of the Second IAHR Symposium on Habitat Hydraulics, Ecohydraulique 2000 (1996)

In the course of the 'Meuse Salmon 2000' programme aiming at the restoration of the Atlantic salmon Salmo salar and sea trout Salmo trutta in the River Meuse Basin, most large dams are progressively ... [more ▼]

In the course of the 'Meuse Salmon 2000' programme aiming at the restoration of the Atlantic salmon Salmo salar and sea trout Salmo trutta in the River Meuse Basin, most large dams are progressively equipped with fishways to restore the free circulation of spawners between the North Sea and the first major spawning streams, the River Ourthe and its tributaries. Spawners entering the River Ourthe would still be confronted to so-called minor obstacles, aiming at water regulation for tourism purposes but of which the actual impact on fish migration has never been investigated. In order to test for the actual free-circulation of salmonid spawners in the upper River Ourthe and to locate potential spawning grounds, a probe fish (489 mm FL male sea trout) was tagged with an intraperitoneally implanted radio-transmitter. From the 18th of ovember 1995 onwards, the trout was tracked in a part of the river (44 km upstream of the confluence) which was thought to be devoid of any major obstacle to fish migration. Three days after its release, the trout had migrated over 6 km up to a small weir (1.8 m high). During four consecutive days, the trout was consistently located downstream of the weir but no successful climbing was observed, reflecting the poor efficiency of the central fishpass under dry weather conditions during summer and autumn. The trout then settled in a deep run habitat, 150 m downstream of the weir and no upstream excursion was recorded until the first major rise of water level, four weeks later, even when the weir was opened for water regulation purposes. When the water level was maximum (24th of December), the trout moved upstream of the weir and migrated over 28 km during the next 72 hours up to a spot identified as a potential spawning redd from habitat features, and where it was consistently located till the 31st of December. These results, though most preliminary, clearly indicate that even minor obstacles may cause a substantial lag in trout migration of which the impact on spawning success remains to be determined. Since similar minor man-made obstacles are most frequent in the salmonid spawning streams of the Belgian Ardennes, it is thus uncertain that migratory trout having successfully climbed the major obstacles since the North Sea would find their way to the spawning redds. As a corollary, it is suggested that more detailed case studies should be undertaken, ideally via the use of telemetered probe-fish, in order to provide management policies that would represent a suitable compromise between users of water resources with apparently conflicting interests (water regulation, tourism, nature conservancy). [less ▲]

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See detailPreliminary work for the use of linkage disequilibrium in French MAS program
Druet, Tom ULg; Fritz, S.; Malafosse, A. et al

Conference (2004)

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See detailPreliminary work for the use of linkage disequilibrium in French MAS program
Druet, Tom ULg; Fritz, S.; Malafosse, A. et al

Conference (2004)

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See detailPRELIMINARY-RESULTS OF 3-D BAROCLINIC NUMERICAL-MODELS OF THE MESOSCALE AND MACROSCALE CIRCULATIONS ON THE NORTH-WESTERN EUROPEAN CONTINENTAL-SHELF
Delhez, Eric ULg; Martin, Géraldine ULg

in Journal of Marine Systems (1992), 3(4-5), 423-440

Two mathematical models for the study of mesoscale (tides, storm surges ...) and macroscale (general circulation ...) motions are described. Both models are derived from the GHER 3-D baroclinic turbulent ... [more ▼]

Two mathematical models for the study of mesoscale (tides, storm surges ...) and macroscale (general circulation ...) motions are described. Both models are derived from the GHER 3-D baroclinic turbulent closure primitive equation model and adapted to the specific spectral windows of, respectively, mesoscale and macroscale processes. Numerical methods are discussed: 3-D finite differences, mode-splitting, sigma-transform ... The mesoscale model is applied to the simulation of the M2 tide on the North-Western European Continental Shelf. The residual circulation model is based on time averaged primitive equations which explicitly include mesoscale Reynolds stresses that are computed by the mesoscale model. Preliminary results of the application of this model in typical summer conditions are presented. [less ▲]

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See detailPrélude à une étude de la réception de l’image égyptienne par les anciens Égyptiens
Den Doncker, Alexis ULg

in Warmenbol, Eugène, Angenot, Valérie (Ed.) Thèbes aux 101 portes. Mélanges à la mémoire de Roland Tefnin (2010)

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See detailPremade versus in situ formed compatibilizer at the PS/PMMA interface: contribution of the Raman confocal microscopy to the fracture analysis
Koulic, Christian; Yin, Zhihui; Pagnoulle, Christophe et al

in Polymer (2001), 42(7), 2947-2957

The interface of a two-layer assembly of polystyrene (PS) and poly(methyl methacrylate) (PMMA) was modified by an intermediate layer of either a premade poly(styrene-g-methyl methacrylate) copolymer (P(S ... [more ▼]

The interface of a two-layer assembly of polystyrene (PS) and poly(methyl methacrylate) (PMMA) was modified by an intermediate layer of either a premade poly(styrene-g-methyl methacrylate) copolymer (P(S-g-MMA)) or a preblend of mutually reactive PS and PMMA synthesized by atom transfer radical polymerization (ATRP). No significant difference was found in the interfacial fracture toughness measured by the double cantilever beam test, although the morphology of the interfacial region was not the same when observed by transmission electron microscopy. The premade copolymer formed a distinct interphase, in contrast to the sharp interface that was observed in the case of the reactive system. The analysis of the fracture surfaces by Raman confocal microscopy showed that the fracture occurred alternatively in the PS phase and either at the PS/copolymer interface for the non reactive system or at the PS/PMMA interface for the reactive one. [less ▲]

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See detailLe prématuré confronté aux troubles de l'attachement. Prévention et prise en charge.
Battisti, Oreste ULg; Adant-François, A.; Bertrand, J. M. et al

in Archives Françaises de Pédiatrie (1998), 5

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See detailThe premature ejaculation ‘disorder ’: Questioning the criterion of one minute of penetration
Kempeneers, Philippe ULg; Desseilles, Martin ULg

in Sexologies : Revue Européenne de Santé Sexuelle = European Journal of Sexual Health (2014), 23

The current trend is to reserve the diagnosis of premature ejaculation (PE) for cases where penetration lasts for about one minute or less. The rationale is that the aetiology is primarily bio ... [more ▼]

The current trend is to reserve the diagnosis of premature ejaculation (PE) for cases where penetration lasts for about one minute or less. The rationale is that the aetiology is primarily bio-constitutional, and that long-term pharmacological treatment is the only viable option. However, the literature contains little scientific evidence to support this argument. In fact, a good number of individuals who suffer from overly rapid ejaculation present with penetration duration exceeding one minute, and even severe forms of PE have responded favourably to psycho-sexological treatment. Moreover, although certain biological variables are known to influence ejaculation latency time, nothing indicates that they play an exclusive role of psychosocial etiological factors in severe PE. Therefore, it would be ‘premature’ to base a PE diagnosis on a maximum penetration duration of one minute, which should instead be considered a severity gradient. Given that desired criteria for penetration duration often exceed biological norms, it would be inappropriate to propose that only the most severe forms of PE have constitutional origins. In any case, the constitution is relatively flexible, and can respond to adaptive learning. An adaptive learning approach would undoubtedly be more difficult to apply in severe cases, but not impossible. The issue of whether to use pharmacological versus psycho-sexological treatment could be side-stepped by moving beyond the single criterion of ejaculation latency. [less ▲]

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See detailPremature opening of the pulmonary valve in right ventricular myocardial infarction.
Legrand, Victor ULg; Rigo, Pierre ULg

in Acta cardiologica (1981), 36(4), 289-93

An echocardiogram performed in a patient with a large right ventricular infarction reveals a premature opening of the posterior leaflet of the pulmonic valve. This opening appears initiated by the atrial ... [more ▼]

An echocardiogram performed in a patient with a large right ventricular infarction reveals a premature opening of the posterior leaflet of the pulmonic valve. This opening appears initiated by the atrial contraction and its clinical and pathophysiological significance is discussed. We conclude that perturbations of the pulmonary valvular motion can occur during right ventricular infarction and reflect a profound alteration in phasic right ventricular flow. [less ▲]

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See detailPrématurité : problème d’alimentation et devenir staturo-pondéral
Senterre, Thibault ULg

Conference (2007, May 24)

Detailed reference viewed: 27 (2 ULg)
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See detailPrématurité et émotions ( pulsations )
Battisti, Oreste ULg

Learning material (1997)

Detailed reference viewed: 31 (1 ULg)
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See detailPrematurity and Bone Health
SENTERRE, Thibault ULg

in 1st International Conference on Nutrition and Growth (2012, March)

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See detailPrematurity and bone health
PIELTAIN, Catherine ULg; de HALLEUX, Virginie ULg; SENTERRE, Thibault ULg et al

in World Review of Nutrition and Dietetics (2013), 106

Detailed reference viewed: 17 (2 ULg)