References of "2004"
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See detailRepères pour des pratiques de qualité (0-3 ans). A la rencontre des familles (partie 1)
Camus, Pascale; Dethier, Anne; Marchal, Laurence et al

Learning material (2004)

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See detailBiodiversité
Hambuckers, Alain ULg

in Marbaix, P.; van Ypersele, J.-P. (Eds.) Imapcts des changements climatiques en Belgique (2004)

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See detailIdentification of a magnetic anomaly at Jupiter from satellite footprints
Grodent, Denis ULg

E-print/Working paper (2004)

Repeated imaging of Jupiter's aurora has shown that the northern main oval has a distorted 'kidney bean' shape in the general range of 90-140? System III longitude, which appears unchanged since 1994 ... [more ▼]

Repeated imaging of Jupiter's aurora has shown that the northern main oval has a distorted 'kidney bean' shape in the general range of 90-140? System III longitude, which appears unchanged since 1994. While it is more difficult to observe the conjugate regions in the southern aurora, no corresponding distortion appears in the south. Recent improved accuracy in locating the satellite footprint auroral emissions has provided new information about the geometry of Jupiter's magnetic field in this and other areas. The study of the magnetic field provides us with insight into the state of matter and the dynamics deep down Jupiter. There is currently no other way to do this from orbit. The persistent pattern of the main oval implies a disturbance of the local magnetic field, and the increased latitudinal separation of the locus of satellite footprints from each other and from the main oval implies a locally weaker field strength. It is possible that these phenomena result from a magnetic anomaly in Jupiter's intrinsic magnetic field, as was proposed by A. Dessler in the 1970's. There is presently only limited evidence from the scarcity of auroral footprints observed in this longitude range. We propose to obtain HST UV images with specific observing geometries of Jupiter to determine the locations of the auroral footprints of Io, Europa, and Ganymede in cycle 13 to accurately determine the magnetic field geometry in the suggested anomaly region, and to either confirm or refute the suggestion of a local magnetic anomaly. [less ▲]

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See detailDéfis et mutations de la citoyenneté face aux recompositions de l’état
Martiniello, Marco ULg; Herman, Jacques; Marques-Pereira, Bérengère

in Paye, Olivier (Ed.) Que reste-t-il de l’état ? (2004)

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See detailStructural and electronic properties of Ag--Pd superlattices
Verstraete, Matthieu ULg; Sporken, R.; Johnson, R. L. et al

in Physical Review. B, Condensed Matter and Materials Physics (2004), 70

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See detailThe use of enzymes and microorganisms for the production of aroma compounds from lipids
Aguedo, Mario ULg; Ly, M. H.; Belo, I. et al

in Food Technology and Biotechnology (2004), 42(4), 327-336

Lipids are an important source of aroma compounds. In foods, lipids are degraded or modified by enzymatic activities that are originally present in the raw materials or that develop later due to the ... [more ▼]

Lipids are an important source of aroma compounds. In foods, lipids are degraded or modified by enzymatic activities that are originally present in the raw materials or that develop later due to the growth of microorganisms. Mimicking these natural pathways, some processes have been developed to produce aroma compounds in bioreactors. In this review we describe the production of aroma compounds from different families: lactones, green notes and ionones. We focus on points that are specific to these reactions in heterogeneous media: physicochemical forces involved in the interactions between the substrate, product and biocatalyst, transfers between the phases and, as the degradation of lipids often requires an oxidation step, on the problems of oxygenation of the reactors. [less ▲]

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See detailImpact of low frequency transcranial magnetic stimulation on event-related brain potentials.
Hansenne, Michel ULg; Laloyaux, Olivier ULg; Mardaga, Solange et al

in Biological Psychology (2004), 67(3), 331-41

Contradictory findings exist concerning the inhibitory function of low frequency repetitive transcranial magnetic stimulation (rTMS). Therefore, the study examines the impact of different duration of low ... [more ▼]

Contradictory findings exist concerning the inhibitory function of low frequency repetitive transcranial magnetic stimulation (rTMS). Therefore, the study examines the impact of different duration of low frequency rTMS on ERPs. In 17 subjects, auditory ERPs were measured before and after 1 Hz rTMS delivered over the left prefrontal cortex during 10 min (600 pulses) and 15 min (900 pulses). Results showed that 15 min of 1 Hz rTMS induced a significant increase of P300 latency. There was no effect for early ERP components (N100, P200 and N200). This study confirms and extends that 1 Hz rTMS produces a real inhibitory effect only when the duration of the stimulation is about 15 min. The data suggest that rTMS modifies the speed of cognitive processing rather than the energetical aspect of information processing, and that cortical inhibition induced by the magnetic stimulation affects principally the controlled cognitive processes and not the automatic ones. [less ▲]

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See detailDifférences liées au sexe : l'école en relation avec son environnement
Lafontaine, Dominique ULg; Blondin, Christiane ULg

in Actes du XVIe colloque international de l'Admée-Europe, Liège, 4-6 septembre 2003 (2004)

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See detailForest and garden: traces of wildness in a modernizing land, 1897-1949 (M.L. Simo).
Bogaert, Jan ULg

in Landscape Journal (2004), 23(2), 174-176

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See detailLes paramyxovirus des mammifères marins
Jauniaux, Thierry ULg

in proceeding of the conference (2004)

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See detailIdentification and subcellular distribution of endogenous Ins(1,4,5)P3 3-kinase B in mouse tissues
Hascakova-Bartova, Romana; Pouillon, Valérie; Dewaste, Valérie et al

in Biochemical and Biophysical Research Communications (2004), 323(3), 920-925

Inositol 1,4,5-trisphosphate 3-kinase (IP3-3K) catalyses the phosphorylation of inositol 1,4,5-trisphosphate to inositol 1,3,4,5-tetrakisphosphate. cDNAs encoding three mammalian isoforms have been ... [more ▼]

Inositol 1,4,5-trisphosphate 3-kinase (IP3-3K) catalyses the phosphorylation of inositol 1,4,5-trisphosphate to inositol 1,3,4,5-tetrakisphosphate. cDNAs encoding three mammalian isoforms have been reported and referred to as IP3-3KA, IP3-3KB, and IP3-3KC. IP3-3KB is particularly sensitive to proteolysis at the N-terminus, a mechanism known to generate active fragments of lower molecular mass. Endogenous IP3-3KB has therefore not been formally identified in tissues. We have probed a series of murine tissues with an antibody directed against the C-terminus of IP3-3KB and used IP3-3KB deficient mouse tissues as negative controls. IP3-3KB was shown to be particularly well expressed in brain, lung, and thymus with molecular masses of 110–120 kDa. The identification of the native IP3-3KB by Western blotting for the first time will facilitate further studies of regulation of its activity by specific proteases and/or phosphorylation [less ▲]

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See detailDéveloppement d'un système harmonisé de surveillance de la qualité des terres agricoles en Région wallonne anticipant la future directive européenne sur les sols
Warin, A.; Bernaerdt, R.; Delcarte, E. et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2004), 8(2), 69-83

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See detailComputed tomography and magnetic resonance of the normal canine carpus
Sofia, Morgan; Snaps, Frédéric ULg; Busoni, Valeria et al

Poster (2004)

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See detailDeutsche Literatur von der Frühen Neuzeit bis zum Sturm und Drang
Viehöver, Vera ULg

Learning material (2004)

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See detailFetometry and fetal heart rates between Day 35 and 108 in bovine pregnancies resulting from transfer of either MOET, IVP-co-culture or IVP-SOF embryos
Breukelman, S. P.; Reinders, J. M. C.; Jonker, F. H. et al

in Theriogenology (2004), 61(5), 867-882

The Large Offspring Syndrome has frequently been reported for in vitro produced calves. The objective of this study was to determine whether any differences in body dimensions (biparietal diameter of the ... [more ▼]

The Large Offspring Syndrome has frequently been reported for in vitro produced calves. The objective of this study was to determine whether any differences in body dimensions (biparietal diameter of the cranium (BPD), cross-section of the abdomen at the insertion of the umbilical cord (CAU)) and heart rate (FHR) can be detected during the first 108 days of gestation between bovine foetuses derived from different methods of embryo production. Three groups of pregnancies with calvings at term resulted from non-surgical transfers of three types of embryos: recipients carrying an embryo obtained by standard MOET procedures (n = 25); recipients carrying an embryo produced in vitro from OPU-derived oocytes, using co-culture-medium (n = 14) or SOF-medium (n = 22). Transrectal ultrasonographic examinations were performed weekly. Ultrasound images were recorded and during off-line analysis FHR, BPD and CAU were determined. For each foetus a curve was fitted and the estimates on fixed time intervals were used as dependent variables in an analysis of variance to detect differences between the three pregnancy groups. Neither gestation length nor birth weight differed significantly between the three pregnancy groups, nor could any differences with respect to BPD, CAU or FHR be detected between Days 35 and 108 of gestation. It is concluded that no differences exist between the early development of bovine foetuses, derived from MOET, IVP-co-culture or IVP-SOF embryos, and resulting in calves with normal birth weights. [less ▲]

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See detailIcon with the Virgin Hodegetria
George, Philippe ULg

in Catalogue de l'exposition Byzantium : Faith and Power (1261-1557), p. 252-253. (2004)

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See detailCombined implicit/explicit algorithms for crashworthiness analysis
Noels, Ludovic ULg; Stainier, Laurent ULg; Ponthot, Jean-Philippe ULg

in International Journal of Impact Engineering (2004), 30(8-9, SEP-OCT), 1161-1177

In order to simulate an industrial process, an explicit method, which is conditionally stable, is the most adapted while the non-linearities evolve rapidly (impact phase, stamping process, etc.). But when ... [more ▼]

In order to simulate an industrial process, an explicit method, which is conditionally stable, is the most adapted while the non-linearities evolve rapidly (impact phase, stamping process, etc.). But when the dynamics becomes quasi-linear (post-impact analysis, springback simulation, etc.), an implicit method, which is iterative, presents the advantage of unconditional stability. The optimal solution is then to have both implicit and explicit methods readily available in the same code and to be able to switch automatically from one to the other. Criteria that decide to switch from one method to another, depending on the current dynamics, have been developed. Implicit restarting conditions are also proposed that annihilate numerical oscillations resulting from an explicit calculation. (C) 2004 Elsevier Ltd. All rights reserved. [less ▲]

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