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Peer Reviewed
See detailMICROSCOPIC RHEOLOGICAL MODELS AND EXTENDED IRREVERSIBLE THERMODYNAMICS
Dauby, Pierre ULg; Lebon, Georgy ULg

in Applied Mathematics Letters (1991), 4(6), 39-43

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Peer Reviewed
See detailMicroscopic spectral density in random matrix models for chiral and diquark condensation
Vanderheyden, Benoît ULg; Jackson, A. D.

in Physical Review D (2003), 67(8), 085016

We examine random matrix models of QCD which are capable of supporting both chiral and diquark condensation. A numerical study of the spectral densities near zero virtuality shows that the introduction of ... [more ▼]

We examine random matrix models of QCD which are capable of supporting both chiral and diquark condensation. A numerical study of the spectral densities near zero virtuality shows that the introduction of color in the interactions does not alter the one-body results imposed by chiral symmetry. A model with three colors has the spectral density predicted for the chiral ensemble with a Dyson index beta=2; a pseudoreal model with two colors exhibits the spectral density of the chiral ensemble with beta=1. [less ▲]

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Peer Reviewed
See detailA microscopic study of barium titanate
Ghosez, Philippe ULg; Gonze, X.; Michenaud, J. P.

in Ferroelectrics (1995), 164

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Peer Reviewed
See detailMicroscopic study of equine oocyte maturation within quaternary follicles
Ponthier, Jérôme ULg; Beckers, Jean-François ULg; Deleuze, Stefan ULg

in Comptes Rendus de l'Académie Bulgare des Sciences = Proceeding of the Bulgarian Academy of Sciences (2009), 62(4), 491-498

In various species a relationship between oocyte maturity and morphological characteristics of oocytes has been established. To our knowledge, little attention has been paid to the immature oocyte aspect ... [more ▼]

In various species a relationship between oocyte maturity and morphological characteristics of oocytes has been established. To our knowledge, little attention has been paid to the immature oocyte aspect under light microscopy in the equine. The aim of the study is to give a general description and analysis of the microscopic parameters of immature oocytes. Follicles from abattoir ovaries are punctured after measurement of their diameter and their cumulus-oocyte complexes are recovered. Different characters such as oocyte diameter, cumulus aspect, granulosity and polarity of ooplasm are observed under light microscopy. No correlation between the estral activity, follicle maturity, cumulus cells aspect, polarity and granulosity of ooplasm was observed. The thickness of zona pellucida differs between oocytes with polar or nonpolar ooplasm. No correlation was observed between the follicle and oocyte diameter and none of the other studied parameters showed an influence on the oocyte diameter. Results show that no character of the observed oocytes under light microscopy can be related to the follicular origin or to any other character. Further studies have to be done to compare these immature oocytes with mature ones and to find the ultrastructural origin of the characters observed under light microscopy. [less ▲]

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Peer Reviewed
See detailMicroscopic study of equine oocyte maturation within quaternary follicles.
Ponthier, Jérôme ULg; Beckers, Jean-François ULg; Deleuze, Stefan ULg

Conference (2009, February 19)

In various species a relationship between oocyte maturity and morphological characteristics of oocytes has been established. To our knowledge, immature oocyte aspect under light microscopy has been paid ... [more ▼]

In various species a relationship between oocyte maturity and morphological characteristics of oocytes has been established. To our knowledge, immature oocyte aspect under light microscopy has been paid little attention in the equine. The aim of the study is to give a general description and analyse microscopic parameters of immature oocytes. Follicles from abattoir ovaries are punctured after measurement of their diameter and their cumulus-oocyte complexes are recovered. Different characters such as oocyte diameter, cumulus aspect, granulosity and polarity of ooplasm are observed under light microscopy. No correlation between estral activity, follicle maturity, cumulus cells aspect, polarity and granulosity of ooplasm was observed. Thickness of zona pellucida differs between oocytes with polar or non polar ooplasm. No correlation was observed between follicle diameter and oocyte diameter and none of the other studied parameters showed an influence on oocyte diameter. Results show that no character of oocytes observed under light microscopy can be related to follicular origin or to any other character. Further studies have to be done to compare these immature oocytes with mature oocytes and to find the ultra-structural origin of characters observed under light microscopy. [less ▲]

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Peer Reviewed
See detailMicroscopic techniques to study the interaction of new polymers within live cells
Smisdom, N.; Sanen, K.; Van Den Akker, N. et al

Poster (2013, June 19)

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See detailMicroscopie virtuelle appliquée à l'anatomie du bois
Jourez, Benoît ULg; Hérin, Michel; Gheysen, Thibaut ULg et al

Poster (2008, May 27)

La microscopie virtuelle est une approche innovante, complémentaire à la microscopie optique classique. Elle permet le traitement et la transmission d'images de coupes anatomiques digitalisées à très ... [more ▼]

La microscopie virtuelle est une approche innovante, complémentaire à la microscopie optique classique. Elle permet le traitement et la transmission d'images de coupes anatomiques digitalisées à très haute résolution. Les images peuvent être observées à l'écran, sous différents grossissements, mais aussi annotées et organisées en bases de données. Ce nouvel outil ouvert au dialogue et à l’auto-apprentissage est destiné à servir de support didactique dans le cadre de formations sur l'anatomie du bois. Le logiciel prévoit la sélection d’une coupe identifiée par l’essence et un plan ligneux dans une base de données accessible par Internet et organise la prospection de cette coupe selon différents grossissements. Au stade de développement actuel, le logiciel permet de se familiariser à la reconnaissance des plans ligneux de différentes essences forestières et met à la disposition de l'utilisateur divers outils interactifs. Il permet également à l'enseignant de pointer des éléments caractéristiques visibles à différents grossissements et d'y adjoindre des explications ou, a contrario, à pointer des éléments qui devront être identifiés par les étudiants. [less ▲]

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See detailMicroscopy and Particle Characterization
Grandfils, Christian ULg

Conference (2003, November 18)

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See detailMicrosequencing of three pregnancy-associated glycoproteins isolated from sheep placenta
El Amiri, Bouchra; Remy, Benoit; Melo de Sousa, Noelita ULg et al

in Proceedings of the 6e Journée de Rencontre Bioforum (2001)

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See detailMicrosoft Corp. contre Commission T-167/08, 27 juin 2012
Petit, Nicolas ULg

Scientific conference (2012, November 29)

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See detailLes microsphères d'acide polylactique comme matériels d'embolisation
Flandroy, P; Grandfils, Christian ULg

Conference (1990, May 28)

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Peer Reviewed
See detailMicrospherophakia-Metaphyseal Dysplasia: A 'New' Dominantly Inherited Bone Dysplasia with Severe Eye Involvement
Verloes, Alain ULg; Van Maldergem, Lionel ULg; de Marneffe, Pierre et al

in Journal of Medical Genetics (1990), 27(7), 467-71

We report a father and son affected by a hitherto unpublished bone dysplasia with moderately severe dwarfism. On initial radiographs, thickening of the diaphyses of the long bones was striking. The small ... [more ▼]

We report a father and son affected by a hitherto unpublished bone dysplasia with moderately severe dwarfism. On initial radiographs, thickening of the diaphyses of the long bones was striking. The small bones of the extremities were almost unaffected. With age, the metaphyseal deformation became more prominent. The epiphyses became irregular and their growth was delayed (particularly the femoral heads). The femoral neck showed an unusual 'lip' on the inner edge. Later, the stubby appearance of the long bones faded and, in adulthood, only enlarged metaphyses and deformed femoral necks persisted. The vertebrae showed moderate deformation with irregular flattening, and narrowing of the spinal canal with a shortened interpedicular distance. The eye defects consisted of high grade myopia, microspherophakia, lens coloboma, lens luxation, and retinal detachment. The name 'microspherophakia-metaphyseal dysplasia' is suggested for this probably autosomal dominant bone dysplasia. [less ▲]

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See detailMicrosporidia parasites disrupt the responses to cadmium exposure in a gammarid
Gismondi, Eric ULg; Rigaud, Thierry; Beisel, Jean-Nicolas et al

in Environmental Pollution (2012), 160

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See detailMicrosporidia parasites in Gammarid: a confounding factor in the evaluation of cadmium toxicity
Gismondi, Eric ULg; Rigaud, Thierry; Beisel, Jean-Nicolas et al

Conference (2011)

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Peer Reviewed
See detailMicrosporum canis keratinolytic enzymes as virulence factors
Mignon, Bernard ULg

Conference (2000)

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Peer Reviewed
See detailMicrosporum canis virulence factors and immunogens: first purification and characterization of a 43.5 kDa keratinolytic metalloprotease
Mignon, Bernard ULg; Brouta, F.; Descamps, F. et al

in Veterinary Dermatology (2000), 11(suppl 1), 14-40

Detailed reference viewed: 46 (3 ULg)
See detailMICROSTRUCTURAL AND PHYSICOCHEMICAL CHARACTERIZATION OF PALYGORSKITE CLAYS FROM MARRAKECH HIGH ATLAS, MOROCCO
El Boudour El Idrissi, Hicham ULg; Knidiri, Abdelouahab; Daoudi, Lahcen et al

Poster (2013, May 09)

The studied palygorskite clay mineral has been collected from several localities of Marrakech High Atlas Tertiary series. These series consist of alternation of marl, dolomite, limestone, gypsum and ... [more ▼]

The studied palygorskite clay mineral has been collected from several localities of Marrakech High Atlas Tertiary series. These series consist of alternation of marl, dolomite, limestone, gypsum and phosphatic beds. Palygorskite currently constitutes more than 90% of the clay fraction of these facies. The aim of this study is to characterise the structure and the physicochemical properties of these fibrous clays. Several technics were performed to characterise these clay sediments: X-ray diffraction (XRD) patterns to study its crystal structure. XRF analysis was performed to study the chemical compositions. Differential thermogravimetric analyses (DTA) were used to study the weight loss due to dehydration and dehydroxylation. The microstructure of these fibrous clays is determined by transmission and scanning electron microscop (TEM/SEM). Physical properties were characterised using the plasticity index of Casagrande, the test for shear strength and the oedometer test. The parameter concerning the adsorption capacity of methylene blue is also determined. The palygorskite clays of the Marrakech High Atlas consist of a silty clay of uniform appearance, greyish in color, and very low organic plastic. The thickness of deposit varies from several meters to several hundred meters. SEM and TEM observations show that palygorskite clay minerals display bundle of long fibres wish occurs as interwoven fibrous mats forming the laminae and as coatings and pore-filling, and pore-bridging cements in dolomite. These fibres are characterized by Mg rich chemical compositions, high crystalline structure, high specific surface area and excellent sorptive capacity. XRD show reflections (110) at 10.5 A, associated with all harmonics. The ATD curves show three endothermic peaks (100-200, 250-300 and 400-500 °C) corresponding to different dehydration process. A fourth exotherm peak often preceded by an endothermic reaction (800-900 °C) reflet the crystallization of new mineral phases including mullite. Palygorskite rich samples exhibit a high plasticity index of about 70. The swelling index generally increases with increasing content of palygorskite. In addition, Palygorskite rich samples exhibit high cohesion and a low friction angle. However, the density of the samples decreases with the increase of the content of palygorskite. [less ▲]

Detailed reference viewed: 27 (3 ULg)