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See detailLarval development of Myzostoma cirriferum (Myzostomida)
Eeckhaut, I.; Fievez, Laurence ULiege; Muller, M. C.

in Journal of Morphology (2003), 258

The larval development of Myzostoma cirriferum is described by means of SEM, TEM, and cLSM. It is similar to that of other myzostomids and includes three stages: the protrochophore, the trochophore, and ... [more ▼]

The larval development of Myzostoma cirriferum is described by means of SEM, TEM, and cLSM. It is similar to that of other myzostomids and includes three stages: the protrochophore, the trochophore, and the metatrochophore. The protrochophore is a ball-shaped larva present in culture from 18-48 h after egg laying. It has no internal organs and its body is made of three cell types: covering cells and ciliated cells that are external and surrounded by a cuticle, and resting cells that fill the blastocoel. The trochophore is a pear-shaped larva that develops 20-72 h after egg laying; the body includes the same three cell types as the previous stage. The metatrochophore is a pear-shaped larva that develops between 40 h and 14 days and is characterized by the presence of two bundles of four chaetae. When fully developed, the metatrochophore has a digestive system (made of a pharynx, an esophagus, and a blind digestive pouch), two pairs of protonephridia, and a nervous system composed of a supraesophageal ganglion, circumesophageal connectives, and dorsal and ventral nerves. Metamorphosis generally occurs 7 days after egg laying. At that time, the metatrochophore loses its chaetae and becomes pleated ventrally. This ultrastructural analysis suggests that chaetae and the five ventral longitudinal nerve cords of M. cirriferum metatrochophores are homologous structures to those observed in some polychaete trochophores. Coupled with recent phylogenetic analyses, where the Myzostomida are placed outside the Annelida, homologies between myzostomid and polychaete larvae support the view that a trochophore appeared early during the spiralian evolution [less ▲]

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See detailL’Histoire par allusion
Denis, Benoît ULiege

in Traces. Travaux du Centre d'Études Georges Simenon (2003), (14), 95-109

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See detailPetrogenesis of jotunitic and acidic members of an AMC suite (Rogaland anorthosite province, SW Norway): a Sr and Nd isotopic assessment
Bolle, Olivier ULiege; Demaiffe, Daniel; Duchesne, Jean-Clair ULiege

in Precambrian Research (2003), 124(2-4), 185-214

Sr and Nd isotopic data from the anorthosite-mangerite-charnockite (AMC) suite of the Late-Sveconorwegian (ca. 0.93 Ga) Rogaland anorthosite province of SW Norway are discussed. The study focuses on new ... [more ▼]

Sr and Nd isotopic data from the anorthosite-mangerite-charnockite (AMC) suite of the Late-Sveconorwegian (ca. 0.93 Ga) Rogaland anorthosite province of SW Norway are discussed. The study focuses on new data obtained from three distinct rock occurrences: (1) primitive (=MgO-rich and K2O-poor)jotunites that represent the parental magmas of leuconorite and mafic plutons (Sr-87/Sr-86(0.93Ga) = ca. 0.704-0.707, epsilon(Nd)(0.93 Ga) = +3.6 down to +1.2); (2) evolved jotunites that differentiated from the primitive jotunites and constitute the starting components of dyke-scale fractionation trends (Sr-87/Sr-86(0.93Ga) = ca. 0.705-0.713, epsilon(Nd)(0.93 Ga) = +0.4 down to -2.0); and (3) felsic plutons (Sr-87/Sr-86(0.93Ga) = ca. 0.707-0.723, epsilon(Nd)(0.93Ga) = +1.4 down to -1.7). A comparison of the Sr and Nd isotopic compositions with available geochemical data (major and trace elements) is also made. Fractionation of the primitive to the evolved jotunites, below the intrusion level of the anorthosite province, is shown to have involved crustal contamination. A case of fractional crystallization and simultaneous contamination/assimilation is substantiated in the felsic cap of a layered intrusion (the Bjerkreim-Sokndal intrusion). It is further proposed that the Sr and Nd isotopic compositions of the various felsic occurrences result from fractional crystallization of primitive jotunitic melts, with or without contamination/assimilation; this strengthens the possibility for large volumes of silica-rich magmas to have been produced by fractionation, through evolved jotunites, of primitive jotunites. The entire range in Sr and Nd isotopic compositions of the Rogaland anorthosite province is interpreted as reflecting a mixing of crustal contaminants, having variable Sr-87/Sr-86(0.93Ga) ratios and (negative) epsilon(Nd)(0.93 Ga) values, with a more isotopically primitive source. The crustal end members of that mixing array are represented by moderatey to strongly LILE-enriched high-grade gneisses from the Pre-Sveconorwegian basement of southernmost Norway, that have a crustal history extending back to 1.5-1.9 Ga in the surroundings of the anorthosite province. The primitive end member is either an unusual LREE-depleted and Rb-enriched component, possibly corresponding to an originally depleted source subsequently modified by metasomatic fluids, or a more classical depleted component; it corresponds to a gabbronoritic rock of the deep crust, as shown by recent experimental data, with a quite short crustal residence time (<0.4-0.2 Ga). If that mafic end member is the lower granulitic crust itself, this would imply the presence in the deep continental crust of southwesternmost Norway of a crustal material strongly different from the 1.7- to 1.9-Gyr-old, moderately LILE-enriched component that is supposed to constitute the largest volume of the present deep continental crust in southern Norway. (C) 2003 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailCompte rendu de Reliques et châsses de la collégiale de Soignies
George, Philippe ULiege

in Revue d'Histoire Ecclésiastique (2003)

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See detailPregnancy-Associated Glycoprotein 55h [Fragment] from Ovis aries placenta - Access number P83500
El Amiri, B.; Remy, B.; Melo de Sousa, Noelita ULiege et al

E-print/Working paper (2003)

N-terminal microsequence obtained after purification and characterization of placental proteins in ovine species. Proteins were submitted to SwissProt databank.

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See detailPurificazione delle proteine associate alla gestazione (PAG) nella bufala (Bubalus bubalis): risultati preliminari.
Barbato, O.; Melo de Sousa, Noelita ULiege; Malfatti, A. et al

in Atti 2o Congresso Nazionale sull’Allevamento del Bufalo (2003)

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See detailAnatomische, histologische en immunologische aspecten van de tonsille bij het schaap in het kader van de BSE problematiek
Cocquyt, G.; Gabriel, Annick ULiege; Van den Broeck, W.

in Vlaams Diergeneeskundig Tijdschrift (2003), 72

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See detailQuantification of Angiogenesis of Embryonic Implantation Site by Image Analysis
Le Maire, Sophie; Blacher, Silvia ULiege; Frankenne, F. et al

Conference (2003)

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See detailIl quarto musicista
Emmanuel, François; Ricciardi, Stefania ULiege

Book published by San Paolo (2003)

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See detailGAIA and the spectroscopic binaries: what to expect in terms of orbit determination?
Pourbaix, D.; Jancart, Sylvie ULiege

in GAIA Spectroscopy: Science and Technology (2003)

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See detailGeological map of the Rogaland anorthosite province – Scale 1:75000
Marker, Mogens; Schiellerup, Henrik; Meyer, Gürli B. et al

in Duchesne, Jean-Clair; Korneliussen, Are (Eds.) Ilmenite deposits and their geological environment. With special reference to the Rogaland Anorthosite Province (2003)

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See detailCrème & beurre.
Blecker, Christophe ULiege

in Cours laitiers pour ouvriers (2003)

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See detailOn the influence of aluminium and silicon contents on the kinetics of bainite transformation of intercritical austenite
Mertens, Anne ULiege; Jacques, Pascal J.; Zhao, Lie et al

in Journal de Physique IV (2003), 112

TRIP-assisted steels show enhanced mechanical properties thanks to the strain-induced transformation of retained austenite to martensite (TRIP effect). Stabilisation of austenite is made possible by the ... [more ▼]

TRIP-assisted steels show enhanced mechanical properties thanks to the strain-induced transformation of retained austenite to martensite (TRIP effect). Stabilisation of austenite is made possible by the combination of appropriate chemical composition (containing classically high levels of silicon, or, as developed more recently, aluminium) and of a two-steps heat treatment comprising an intercritical annealing followed by an isothermal holding in the bainite formation range. A detailed understanding of the effects of both elements on the bainite transformation kinetics is thus of primary importance for the optimisation of austenite retention. The present study aims at a better knowledge of the influence of aluminium levels on the kinetics of the bainite transformation of intercritical austenite, as compared to the effect of silicon. The bainite transformation kinetics was followed by dilatometry in a set of 6 steel grades with varying aluminium and silicon contents. These dilatometry experiments were coupled with a characterisation of the microstructures by X-ray diffraction, SEM and image analysis. It was shown that aluminium has a less pronounced effect than silicon in retarding the bainite transformation [less ▲]

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See detailAn X-ray Rietveld, infrared, and Mossbauer spectral study of the NaMn(Fe1-xInx)(2)(PO4)(3) alluaudite-type solid solution
Hatert, Frédéric ULiege; Hermann, Raphaël ULiege; Long, Gary J. et al

in American Mineralogist (2003), 88(1), 211-222

Several compounds of the NaMn(Fe1-xInx)(2)(PO4)(3) solid solution were synthesized by solid state reaction in air; pure alluaudite-like compounds were obtained for x = 0.00 to 1.00. X-ray Rietveld ... [more ▼]

Several compounds of the NaMn(Fe1-xInx)(2)(PO4)(3) solid solution were synthesized by solid state reaction in air; pure alluaudite-like compounds were obtained for x = 0.00 to 1.00. X-ray Rietveld refinements indicate the presence of Na+ at the A1 and A2' sites, Mn2+ at the M1 site, and Fe2+, Fe3+, and In3+ at the M2 site. The presence of small amounts of In3+ at the M I site, and Mn2+ at the M2 site, indicates a partially disordered distribution between these cations. A good correlation was also established between the M1-M2 bond distance and the beta angle of the alluaudite-like compounds. The disordered distribution of Fe2+, Fe3+, and In3+ at the M2 site is confirmed by the broadness of the infrared absorption bands. The Mossbauer spectra, measured between 90 and 295 K, were analyzed in terms of a model that takes into account the next-nearest neighbor interactions around the M2 crystallographic site. In all cases these spectra reveal the unexpected presence of small amounts of Fe2+ at the M2 site, an amount that decreases as the In3+ content increases. The Fe2+ and Fe3+ isomer shifts are typical of the alluaudite structure and vary with temperature, as expected from a second-order Doppler shift. The derived iron vibrating masses and Mossbauer lattice temperatures are within the expected range of values for iron cations in an octahedral environment. The Fe2+ and Fe3+ quadrupole splittings are also typical of the alluaudite structure and the temperature dependence of the Fe2+ quadrupole splitting was fit with the model of Ingalls (1964), which yielded a ground state orbital splitting of ca. 380 to 570 cm(-1) for the Fe2+ sites. [less ▲]

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See detailRevue de l'épidémiologie de la maladie de Crohn en Europe
Piront, Patricia ULiege; Belaiche, Jacques ULiege; Louis, Edouard ULiege

in Acta Endoscopica (2003), 33

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