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See detailFatal Mural Endocarditis and Cutaneous Botryomycosis after Heart Transplantation
Defraigne, Jean-Olivier ULg; Demoulin, J. C.; Pierard, Gérald ULg et al

in American Journal of Dermatopathology (1997), 19(6), 602-5

Fatal mural endocarditis and botryomycosis occurred concurrently in a 62-year-old women 4 months after orthotopic heart transplantation. Subsequent to mild mitral regurgitation, infection developed on a ... [more ▼]

Fatal mural endocarditis and botryomycosis occurred concurrently in a 62-year-old women 4 months after orthotopic heart transplantation. Subsequent to mild mitral regurgitation, infection developed on a left atrial thrombus and was complicated by cerebral embolization. Simultaneously, skin nodules manifested on both forearms. Histologic examination revealed typical aspects of early evolving botryomycosis with massive infiltration of the dermis and hypodermis by necrotic granulomas framed by grains of Gram-positive coccoid forms. Bacteria were decorated by a nonspecific polyclonal antibody to Mycobacterium bovis. [less ▲]

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See detailAttitude des élèves face à l'école et au cours d'éducation physique, âge et retard scolaire
Piéron, Maurice; Delfosse, Catherine; Ledent, Maryse et al

in Revue de l'Education Physique (1997), 37(1), 31-41

Le terme motivation fait partie du langage habituel des psychologues, des enseignants, des sportifs,... Nous pourrions continuer cette liste sans parvenir à lui donner un caractère exhaustif. Parfois ... [more ▼]

Le terme motivation fait partie du langage habituel des psychologues, des enseignants, des sportifs,... Nous pourrions continuer cette liste sans parvenir à lui donner un caractère exhaustif. Parfois utilisé de manière abusive, ce concept présente néanmoins des aspects théoriques et pratiques fondamentaux. A la notion de motivation, on associe très fréquemment celle d'attitude. Toutes deux sont définies en référence à l'affect, c'est-à-dire à une impression d'attraction ou de répulsion vis-à-vis d'un objet déterminé. ... [less ▲]

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See detailInventaire forestier régional et applications cartographiques.
Rondeux, Jacques ULg; George, B.; Lecomte, Hugues

in Silva Belgica (1997), 104(3),

Il est pratiquement possible de représenter, par voie cartographique, tous les résultats issus d'un inventaire réalisé par échantillonnage, que ce soit en termes de variables quantitatives réparties en ... [more ▼]

Il est pratiquement possible de représenter, par voie cartographique, tous les résultats issus d'un inventaire réalisé par échantillonnage, que ce soit en termes de variables quantitatives réparties en classes d'amplitudes fixées ou de variables qualitatives codées sur une échelle de valeurs prédéfinie. A la condition d'être de type systématique [RONDEUX, 1993], cet échantillonnage assure une représentation cartographique homogène d'autant plus fine, lisible et fiable que la maille définissant l'emplacement des unités de sondage est dense et que la variabilité de l'élément ou de la variable à illustrer est faible. La localisation géographique de l'information, en particulier forestière, permet de donner une autre dimension aux résultats et offre d'évidentes perspectives de valorisation de ceux-ci, en particulier lorsqu'il s'agit de problèmes relevant de la gestion de l'espace et de stratégies touchant son organisation à une large échelle. Ces propos sont illustrés par la réalisation de cartes relatives à une situation photographiée par le premier inventaire forestier wallon mis en oeuvre [RONDEUX, 1988] entre 1980 et 1984. Elles concernent, à titre d'exemple et compte tenu des contraintes exposées au paragraphe 2, la répartition entre propriétés publiques et privées, les types de peuplement (feuillus ou résineux) et la structure de ceux-ci, les volumes à l'hectare de la totalité du matériel ligneux vivant et les niveaux de productivité des peuplements d'épicéa commun. Nous envisagerons sur un plan général le type de relations unissant un inventaire par échantillonnage à une représentation cartographique thématique (paragraphe 2), nous présenterons ensuite les documents proposés après avoir précisé la définition aussi stricte que possible des variables entrant en ligne de compte (paragraphe 3) avant de terminer par une brève conclusion (paragraphe 4). [less ▲]

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See detailQuality of life as outcome in the treatment of osteoporosis : The development of a questionnaire for quality of life by the European Foundation for Osteoporosis
Lips, P; Cooper, C; Agnusdei, D et al

in Osteoporosis International (1997), 7

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See detailUne grammaire de l'égyptien de la 18e dynastie
Winand, Jean ULg

in Orientalische Literaturzeitung (1997), 92

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See detailNationalism, Ethnicity and Cultural Identity in Europe - Keebet von Benda-Beckman & Maykel Verkuyten
Martiniello, Marco ULg

in Ethnic and Racial Studies (1997), 20(4), 854-855

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See detailMechanisms of cancer-related anemia and rationale for erythropoietin treatment
Beguin, Yves ULg

in Cancer Biotherapy (1997), 1

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See detailTerm analysis and Hyperfine Structure in Neutral Vanadium
Palmeri, P.; Biémont, Emile ULg; Quinet, P. et al

in Physica Scripta (1997), 55

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See detailElectrospray Mass Spectrometry Study of Selective Complexes of Polyammonium Macrotricyclic Ligands with Dicarboxylic Acids
Collette, Caroline ULg; Meunier, Cécile; De Pauw, Edwin ULg et al

in Rapid Communications in Mass Spectrometry : RCM (1997), 11

Macrocyclic and macropolycyclic polyammonium host molecules have been shown to complex a variety of inorganic and organic anions strongly and selectively. The selectivity of the complexation depends on ... [more ▼]

Macrocyclic and macropolycyclic polyammonium host molecules have been shown to complex a variety of inorganic and organic anions strongly and selectively. The selectivity of the complexation depends on the substrate lenght and on the size of the host cavity of the macrocycle. We describe in this article the analysis of the complexation of dicarboxylic acid substrates by a macrotricyclic host using electrospray mass spectrometry. [less ▲]

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See detailL’arsénopyrite du Massif de Stavelot, Belgique
Hatert, Frédéric ULg

in Bulletin de la Société Royale des Sciences de Liège (1997), 66

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See detailHepatocyte transplantation in anhepatic rats: effect on survival, blood chemistry and growth factor profile
Khalili, T.; Arkadopoulos, N.; Detry, Olivier ULg et al

in Surgical Forum (1997), 44

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See detailMotivation des jeunes à la pratique des activités physiques et sportives
Ledent, Maryse; Cloes, Marc ULg; Onofre, C. Jordan et al

in Sport (1997), 159/160

Nombreux sont ceux qui attribuent une importance capitale aux motivations à la participation des jeunes au sport. En effet, les modalités de pratique et la qualité des expériences vécues dans le domaine ... [more ▼]

Nombreux sont ceux qui attribuent une importance capitale aux motivations à la participation des jeunes au sport. En effet, les modalités de pratique et la qualité des expériences vécues dans le domaine des activités physiques et sportives exerceraient de profonds effets dans la perspective d'un style de vie actif et sain à l'âge adulte. Cette croyance, bien établie chez les éducateurs physiques et les partisans du sport, doit néanmoins être prise avec beaucoup de prudence lorsque l'on considère les résultats des études longitudinales. ... [less ▲]

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See detailPostoperative spirometry after laparoscopy for lower abdominal or upper abdominal surgical procedures.
Joris, Jean ULg; Kaba, Abdourahmane ULg; Lamy, Maurice ULg

in British Journal of Anaesthesia (1997), 79(4), 422-6

In this prospective study, we have compared women undergoing laparoscopic cholecystectomy, laparoscopic gynaecological surgery and laparoscopic minor gynaecological procedures (diagnostic, tubal, ligation ... [more ▼]

In this prospective study, we have compared women undergoing laparoscopic cholecystectomy, laparoscopic gynaecological surgery and laparoscopic minor gynaecological procedures (diagnostic, tubal, ligation) (n = 10 in each group) to determine if lower abdominal laparoscopy results in less postoperative pulmonary dysfunction than upper abdominal laparoscopy. Pulmonary testing was performed before operation, and 3 and 6 h after operation, on the first and second days after surgery. After operation, a significant reduction in forced vital capacity, forced expiratory volume in 1 s and peak expiratory flow rate occurred after laparoscopic cholecystectomy at each time. There were no significant changes after minor gynaecologic laparoscopy, whereas laparoscopic gynaecological surgery resulted in minor pulmonary dysfunction on the day of surgery only. We conclude that postoperative pulmonary function was less impaired after gynaecological laparoscopy than after laparoscopic cholecystectomy. This study suggests that the site of surgery is an important determinant of lung dysfunction after laparoscopy. [less ▲]

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See detailThe Civility of Relationships: Charles Tomlinson and the Conversion of American Modernism
Delville, Michel ULg

in Symbiosis: A Journal of Anglo-American Literary Relations (1997)

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See detailA modification of convex approximation methods for structural optimization
Zhang, Wei-Hong; Fleury, Claude ULg

in Computers & Structures (1997), 64(1-4), 89-95

The most popular convex approximation methods used today in structural optimization are discussed in this paper: the convex linearization method (CONLIN), the method of the moving asymptotes (MMA) and the ... [more ▼]

The most popular convex approximation methods used today in structural optimization are discussed in this paper: the convex linearization method (CONLIN), the method of the moving asymptotes (MMA) and the sequential quadratic programming method (SQP). Modifications are made to enhance the reliability of the CONLIN method. In addition, a generalized MMA (GMMA) is established. However, in view of practical difficulties of evaluating second-order derivatives, a fitting scheme is proposed in this work to adjust the convexity of the approximation based on the available function value at the preceding design iteration. Numerical results show that this simple scheme is efficient in our applications. [less ▲]

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See detailReflections on risk and resilience in adolescence
Born, Michel ULg; Jackson, Sandy; Jacob, Marie-Noël

in Journal of adolescence (1997), 20

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See detailSur les accents et les marques de quantité dans les papyrus latins
Rochette, Bruno ULg

in Zeitschrift für Papyrologie und Epigraphik (1997), 119

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See detailPlasma pregnancy-associated glycoprotein and progesterone concentrations in pregnant Assaff ewes carrying single and twin lambs
Ranilla, Marie-José; Sulon, Joseph ULg; Mantecón, A. R. et al

in Small Ruminant Research (1997), 24(2), 125-131

Ovine pregnancy-associated glycoprotein (oPAG) and progesterone (P4) concentrations were monitored weekly during the last three months of gestation and the first month postpartum in plasma of twelve Assaf ... [more ▼]

Ovine pregnancy-associated glycoprotein (oPAG) and progesterone (P4) concentrations were monitored weekly during the last three months of gestation and the first month postpartum in plasma of twelve Assaf ewes. The oPAG levels were determined with a heterologous RIA using bovine PAG as standard and tracer and rabbit antiserum against oPAG. The P4 levels were measured with a radioimmunological procedure with a sensitivity to less than 0.1 ng/ml. The oPAG profiles in ewes carrying a single lamb and in those carrying twins were very similar from week 9 of gestation to lambing. Ewes which had twins presented numerically higher oPAG concentrations from week 12 to lambing, but that difference was only significant (p<0.05) at week 21. Ewes carrying twins presented higher (P<0.05) P4 concentrations from weeks 12 to 20 of gestation than those carrying a single lamb, but afterwards there was no difference. No correlation was found between P4 and oPAG concentrations at each stage of gestation studied in any group. After lambing, P4 levels dropped rapidly in one week, whereas oPAG decreased in four weeks to basal values in both groups of ewes. No relationship (P>0.05) was found between oPAG concentrations and lamb birth-weight at any week of gestation considered in this study. However, the lamb birth-weight was positively correlated (P<0.10) with the P4 concentrations from weeks 9 to 19 of gestation. Results indicate that number of fetuses could influence the oPAG production in ewes during the last three months of gestation. [less ▲]

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See detailExperimental induction of prenucleolar bodies (PNBs) in interphase cells: interphase PNBs show similar characteristics as those typically observed at telophase of mitosis in untreated cells.
Zatsepina, O. V.; Dudnic, O. A.; Todorov, I. T. et al

in Chromosoma (1997), 105(7-8), 418-30

Recently, it was shown that a short exposure of living mammalian cells to low ionic strength buffers (hypotonic shock) caused partial or almost complete unraveling of interphase nucleoli. However, when ... [more ▼]

Recently, it was shown that a short exposure of living mammalian cells to low ionic strength buffers (hypotonic shock) caused partial or almost complete unraveling of interphase nucleoli. However, when the cells were released from the hypotonic shock and transferred to normal isotonic medium, functionally active and structurally integral nucleoli were reassembled at their initial positions within interphase nuclei. Here, we show further that this process is accompanied by the appearance of numerous discrete extranucleolar bodies, which have striking similarities to the prenucleolar bodies (PNBs) observed in untreated cells at telophase of mitosis. (1) Like PNBs at mitosis, hypotonically induced interphase PNBs are composed of RNA-positive granules and fibrils, contain the major nucleolar protein B23 and silver-binding proteins, but lack DNA and RNA polymerase I transcription factor UBF. (2) As for mitotic PNBs, disappearance of the interphase PNB counterparts coincides with the increase in size of reconstructed nucleoli. (3) Addition of actinomycin D does not prevent assembly of interphase PNBs, but does arrest their coalescence with the chromosomal nucleolus-organizing regions and blocks the complete reformation of nucleoli. It is concluded that the assembly of PNBs generally observed at telophase of mitosis can be induced experimentally in nuclei of interphase mammalian cells in vivo. At interphase, this process is probably initiated by changes in the intracellular ionic environment. [less ▲]

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See detailMéthodes chromatographiques de dosage dans les milieux biologiques : stratégie de validation - Rapport d'une commission SFSTP
Chapuzet, E.; Mercier, N.; Bervoas-Martin, S. et al

in STP Pharma Pratiques (1997), 7(3), 169-194

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See detailReassembly of functional nucleoli following in situ unraveling by low-ionic-strength treatment of cultured mammalian cells.
Zatsepina, O. V.; Dudnic, O. A.; Chentsov, Y. S. et al

in Experimental Cell Research (1997), 233(1), 155-68

In order to determine the most persistent components of the nucleolus that might serve as "core" nucleolar elements, we studied the reactivity of nucleoli in living mammalian cells subjected to hypotonic ... [more ▼]

In order to determine the most persistent components of the nucleolus that might serve as "core" nucleolar elements, we studied the reactivity of nucleoli in living mammalian cells subjected to hypotonic buffer saline followed by the incubation of the cells in an isotonic medium. To document as precisely as possible the fine structural changes which occurred, the cells were examined by video-enhanced optical microscopy, fluorescence confocal laser scanning microscopy, and electron microscopy combined with cytochemistry. Light microscopic autoradiography was used to demonstrate the transcriptional characteristics of the reassembled nucleoli. It was shown that all the major compartments of the intact nucleolus could be substantially affected by reduction of the osmolarity of the environmental media. The dynamic events of the nucleolar unraveling in low-salt buffers occurred in the following order: dispersion of the nucleolar pars granulosa, disassociation of the fibrillar complexes into discrete fibrillar centers (FCs) and the dense fibrillar component (DFC), and the almost complete unraveling of the DFC and FCs. At the terminal stages of nucleolar dispersion, the nuclear interior was mainly composed of a loose filamentous meshwork, and none of the typically discerned nucleolar constituents was recognized. Nevertheless, when hypotonically treated cells were returned to isotonic conditions, the nucleolar bodies rapidly began to reassemble. Within 1-2 h of cell incubation under isotonicity, the nucleoli not only became clearly visible, but also reconstituted to their initial size, shape, and position within the nucleus. The ultrastructure and functional activity of the reassembled nucleoli were also found to be fully comparable to those of the untreated controls. These data indicate that the architectural composition of the interphase nucleolus is strictly controlled by the cell. As far as could be determined, none of the usual substructures of the intact nucleolus that could be substituted by complete reassembly of the nucleolar bodies in normotonic conditions, including FCs and the DFC, remained clearly preserved in the terminal stage of nucleolar unraveling. We concluded that the integrity of the nucleolus was mainly preserved by the nuclear or nucleolar matrix system rather than by any other nucleolar structural domains. [less ▲]

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See detailAnti-PMSG in sheep subjected annualy to oestrus synchronisation
Bodin, L.; Drion, Pierre ULg; Remy, Benoit et al

in Reproduction Nutrition Development (1997), 37

Estimation of the long-term consequences on reproduction performance of the oestrus synchronisation treatments that are annually applied to ewes was carried out on nine officially controlled dairy flocks ... [more ▼]

Estimation of the long-term consequences on reproduction performance of the oestrus synchronisation treatments that are annually applied to ewes was carried out on nine officially controlled dairy flocks in the Roquefort region of France. A hormonal treatment combining the insertion of a vaginal fluoro-gestone acetate (FGA) sponge for 14 days and the injection of about 500 IU of pregnant mare serum gonadotropin (PMSG) at withdrawal was applied to the ewes in seven of the nine flocks. The ewes in the two other flocks were used as controls. Blood samples were taken from each female just before the treatment (to test for the presence of residual antibodies) and 20 days after the PMSG injection. Anti-PMSG antibody binding rates were calculated for each blood sample. The residual binding rate increased with age and induce negative effects on the following years reproduction performances, ie, they increased the probability that the ewes would not become pregnant. [less ▲]

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See detailZur Wortgeographie der Rheinlande. Über ein dialektologisches Projekt EDV-gestützter Wortkartenanalyse
Lausberg, Helmut; Möller, Robert ULg

in Berichte zur Deutschen Landeskunde (1997), 71

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See detailPit-1 gene HinfI RFLP and growth traits in double-muscled Belgian Blue cattle
Renaville, Robert ULg; Gengler, Nicolas ULg; Parmentier, Isabelle et al

in Journal of Animal Science (1997), 75(1), 146

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See detailClinical PET in oncology
Rigo, P.; Paulus, P.; Bury, Thierry ULg et al

in Radioactive Isotopes in Clinical Medicine Research XXII (1997)

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See detailTell Amarna 1997
Tunca, Önhan ULg

in Chronique archéologique en Syrie 2 (1997)

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See detailNumerical simulation of a quantum particle in a box
Hermann, Raphaël ULg

in Journal of Physics : A Mathematical & General (1997), 30(11), 3967-3975

It is shown how one can get numerical prediction of quantum mechanical particle behaviour without using the Schrodinger equation. The main steps of this development are the non-differentiability ... [more ▼]

It is shown how one can get numerical prediction of quantum mechanical particle behaviour without using the Schrodinger equation. The main steps of this development are the non-differentiability hypothesis, the equations of motion entailed by this hypothesis, and the numerical formulation of a simple one-dimensional problem: the particle in a box. [less ▲]

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See detailDe différences en disparités : les effets d'un système éducatif 'non compréhensif'
Lafontaine, Dominique ULg

in Scientia Paedagogica Experimentalis (1997), XXXIV(2), 267-281

Cet article examine, à travers le cas de la Communauté française de Belgique, les liens entre l'organisation du système éducatif au début du secondaire (présence de redoublements ou promotion automatique ... [more ▼]

Cet article examine, à travers le cas de la Communauté française de Belgique, les liens entre l'organisation du système éducatif au début du secondaire (présence de redoublements ou promotion automatique, organisation en tronc commun ou en filières, présence ou non d'une carte scolaire) et différents indices de performance ou d'équité : performances moyennes en lecture à un test international comparatif, degré d'hétérogénéité des performances entre élèves, disparités de rendement selon l'établissement ou la filière fréquenté(e). Les résultats montrent que le redoublement, largement pratiqué en Communauté française de Belgique, ne débouche ni sur des meilleures performances, ni sur une réduction sensible des disparités entre élèves. L'absence de tronc commun et de sectorisation engendre en outre de fortes disparités selon la filière et selon l'établissement fréquenté. Le premier degré du secondaire de la Communauté française, organisé en système 'non compréhensif', semble ainsi de nature à amplifier plutôt qu'à corriger les inégalités entre élèves issus du primaire. [less ▲]

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See detailTwo centuries of vaccination
Vanderplasschen, Alain ULg; Smith, G. L.

in Annales de Médecine Vétérinaire (1997), 141

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See detailRegolazione della crescité follicolare e luteinica. Ovulazione, corpo luteo e luteolisi
Drion, Pierre ULg; Ectors, Fabien; Hanzen, Christian ULg et al

in Riproduzione dei Ruminanti (1997), 14(9), 17-25

Most ovarian follicles (99.9%) will end up with follicular atresia. During antral stages atresia depends on a reduction of FSH levels secondary to estradiol and inhibin secretions by the dominant follicle ... [more ▼]

Most ovarian follicles (99.9%) will end up with follicular atresia. During antral stages atresia depends on a reduction of FSH levels secondary to estradiol and inhibin secretions by the dominant follicle. Plasma levels in estradiol higher than 12pg/ml for at least 12 hours in bovine will cause the reversal of the negative feed-back effect of estradiol on the hypothalamus inducing the preovulatory peak of LH. So that the ovulatory discharge does not occur prematurely, the dominant follicle also secretes GnSIF which desensitises the hypohtesis to the action of GnRH. After ovulation, the corupus luteum, a true endocrine gland, develops. [less ▲]

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See detailThe Photoabsorption Spectrum of Vinylchloride (C2H3Cl) in the 8-12 eV Range.
Locht, Robert ULg; Leyh, Bernard ULg; Hottmann, K. et al

in Chemical Physics (1997), 220

The photoabsorption spectrum of vinylchloride (C2H3Cl) has been measured using synchrotron radiation and has been analyzed in detail between 8-12 eV photon energy. Valence and virtual valence and Rydberg ... [more ▼]

The photoabsorption spectrum of vinylchloride (C2H3Cl) has been measured using synchrotron radiation and has been analyzed in detail between 8-12 eV photon energy. Valence and virtual valence and Rydberg transitions have been identified and classified. Tentative assignments were based on the ionization energies as measured by He(I)- and threshold photoelectron spectroscopy, as reported in the joined paper. Many features have been identified as being members of vibrational progressions belonging to the observed Rydberg series. [less ▲]

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See detailRecognition of the latency-associated immediate early protein IE63 of varicella-zoster virus by human memory T-lymphocytes
Sadzot-Delvaux, Catherine ULg; Kinchington, Paul R.; Debrus, Serge et al

in Journal of Immunology (1997), 159(6), 2802-2806

Varicella-zoster virus (VZV) is a human alpha herpesvirus that establishes latency in sensory ganglia. Latency is characterized by the abundant expression of the immediate early protein 63 (IE63), whereas ... [more ▼]

Varicella-zoster virus (VZV) is a human alpha herpesvirus that establishes latency in sensory ganglia. Latency is characterized by the abundant expression of the immediate early protein 63 (IE63), whereas other viral proteins have not yet been detected during the quiescent phase of VZV infection. The IE63 protein is a component of the virion and is expressed very early in the infectious cycle. The IE63 protein is also expressed in skin during episodes of varicella and herpes zoster. We have evaluated the cell-mediated immune response against IE63 in naturally immune adults with a history of chickenpox, by T lymphoproliferation and cytotoxicity assays. Among donors who had T cell proliferation to unfractionated VZV Ags from infected cell extract, 59% had T cell recognition of purified IE63. The CTL response to IE63 was equivalent to CTL recognition of IE62, the major tegument component of VZV whose immunogenicity has been previously described. IgG Abs against IE63 were detected in serum from healthy immune adults. These results indicate that IE63 is an important target of immunity to VZV. T cell recognition of IE63 is likely to be involved in controlling VZV reactivation from latency. [less ▲]

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See detailAerosol therapy in the equine species
Duvivier, Dominique Hannia; Votion, Dominique ULg; Vandenput, Sandrina ULg et al

in Veterinary Journal (1997), 154(3), 189-202

Inhalation therapy plays an increasing role in the management of equine respiratory disorders. This alternative to systematic treatment permits a high concentration of medication to act locally while ... [more ▼]

Inhalation therapy plays an increasing role in the management of equine respiratory disorders. This alternative to systematic treatment permits a high concentration of medication to act locally while minimizing side effects and residues. In human medicine, literature in this field is prolific and continuously renewed, whereas in veterinary medicine, applications of aerosol therapy are less extensive. This review considers the principles of action of the different types of devices used for inhalation, i.e., nebulization, metered-dose inhalation and dry powder inhalation, describes the technical and practical requirements for their use in the equine species and considers the advantages and disadvantages of each inhalation device. The pharmacological agents currently administered to horses by inhalation are also discussed. Perspectives of aerosol therapy in the equine species, including aerosols already used in human medicine and their potential applications for horses are described [less ▲]

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See detailImproved emulsifying and foaming of whey proteins after enzymic fat hydrolysis
Blecker, Christophe ULg; Paquot, Michel ULg; Lamberti, I. et al

in Journal of Food Science (1997), 62(1), 48-

In an effort to improve emulsifying and foaming of sweet whey and whey protein concentrate, we studied the hydrolysis of the residual fat in these preparations with a sn 1,3 specific lipase. This ... [more ▼]

In an effort to improve emulsifying and foaming of sweet whey and whey protein concentrate, we studied the hydrolysis of the residual fat in these preparations with a sn 1,3 specific lipase. This enzymatic lipolysis would convert almost all triglycerides into mono- and diglycerides which have strong surface-active properties. Therefore, the emulsifying and foaming capacities of such modified whey products should be increased in comparison with native products, as shown by results presented at both neutral pH and those similar to a salad dressing emulsion. It was also demonstrated that emulsions and foams formed with lipase-treated whey preparations were more shelf-stable. [less ▲]

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See detailExpression of insulin-related peptides in the human thymus
Geenen, Vincent ULg; Lefebvre, Pierre ULg

in International Diabetes Monitor (1997), 9

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See detailLes avatars de la conscience
Richelle, Marc ULg

in Bulletin de la Classe des Lettres et des Sciences Morales et Politiques (1997), 6e série, tome VIII(1-6), 13-47

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See detailHarm avoidance dimension of the Tridimensional Personality Questionnaire and serotonin-1A activity in depressed patients.
Hansenne, Michel ULg; Pitchot, William ULg; Moreno, A. G. et al

in Biological Psychiatry (1997), 42(10), 959-61

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See detailIsolation, identification and serotyping of Clostridium perfringens from goats.
Phukan, A.; Dutta, G. N.; Daube, Georges ULg et al

in Indian Journal of Animal Sciences (The) (1997), 67

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See detailElectron partitioning between the two branching quinol-oxidizing pathways in Acanthamoeba castellanii mitochondria during steady-state state 3 respiration.
Jarmuszkiewicz, W.; Sluse-Goffart, C.; Hryniewiecka, L. et al

in Journal of Biological Chemistry (1997), 273(17), 10174-10180

Amoeba mitochondria possess a respiratory chain with two quinol-oxidizing pathways: the cytochrome pathway and the cyanide-resistant alternative oxidase pathway. The ADP/O method, based on the non ... [more ▼]

Amoeba mitochondria possess a respiratory chain with two quinol-oxidizing pathways: the cytochrome pathway and the cyanide-resistant alternative oxidase pathway. The ADP/O method, based on the non-phosphorylating property of alternative oxidase, was used to determine contributions of both pathways in overall state 3 respiration in the presence of GMP (an activator of the alternative oxidase in amoeba) and succinate as oxidizable substrate. This method involves pair measurements of ADP/O ratios plus and minus benzohydroxamate (an inhibitor of the alternative oxidase). The requirements of the method are listed and verified. When overall state 3 respiration was decreased by increasing concentrations of n-butyl malonate (a non-penetrating inhibitor of succinate uptake), the quinone reduction level declined. At the same time, the alternative pathway contribution decreased sharply and became negligible when quinone redox state was lower than 50%, whereas the cytochrome pathway contribution first increased and then passed through a maximum at a quinone redox state of 58% and sharply decreased at a lower level of quinone reduction. This study is the first attempt to examine the steady-state kinetics of the two quinol-oxidizing pathways when both are active and to describe electron partitioning between them when the steady-state rate of the quinone-reducing pathway is varied. [less ▲]

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See detailMethodology for optimization of operation to reduce site-scale energy use in production plants
Heyen, Georges ULg; Kalitventzeff, Boris ULg

in Applied Thermal Engineering (1997), 17(8-10), 1005-1014

A methodology was developed to improve energy usage in the process industries by optimizing plant operation. The first step was to build fine tuned site-scale models of energy intensive production plants ... [more ▼]

A methodology was developed to improve energy usage in the process industries by optimizing plant operation. The first step was to build fine tuned site-scale models of energy intensive production plants and of combined heat and power utility distribution networks (heat, power, cooling), and later to optimize them using various numerical techniques. The methodology not only comprises these models, but also the selected optimization methods, their implementation in algorithms suited for the problems to be solved and the evaluation of the results in terms of their applicability ia real industrial problems. The detailed models were tuned on the basis of actual plant data. They were used to calculate accurate energy balances, and thus to identify sources of energy waste. Finally they allowed optimization of energy usage by adjusting operating conditions at a medium time scale (a few hours to a couple of days). Energy savings in the range 5%-10% could be obtained for energy intensive processes, where even a low percentage represents a considerable amount. (C) European Communities 1997. Published by Elsevier Science Ltd. [less ▲]

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See detailBovine preantral follicles and activin: immunohistochemistry for activin and activin receptor and the effect of bovine activin A in vitro
Hulshof, S. C. J.; Figueiredo, J. R.; Beckers, Jean-François ULg et al

in Theriogenology (1997), 48

Activin was originally isolated from follicular fluid as a factor stimulating FSH from the pituitary. Recent studies also suggest a local role for activin in the development of preantral and early antral ... [more ▼]

Activin was originally isolated from follicular fluid as a factor stimulating FSH from the pituitary. Recent studies also suggest a local role for activin in the development of preantral and early antral follicles. In the present study, activin and activin receptor immunoreactivity are shown in oocyte and granulosa cells of bovine preantal follicles. In addition, activin immunoreactivity was observed in the theca of secondary follicles. In addition, activin preantral follicles, activin increased follicular growth and granulosa cell proliferation in a dose-dependent manner. This increase was further stimulated by addition of FSH. In conclusion, activin and its receptor are present on bovine follicles, and additional activin stimulates development of those follicles. [less ▲]

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See detailOrientation des objectifs et participation à des activités sportives
Ledent, Maryse; Telama, Risto; Cloes, Marc ULg et al

in Sport (1997), 159/160

Il existe une multitude de facteurs d'influence qui rendent la prévision d'une participation à l'activité sportive particulièrement délicate: influences biologiques et démographiques, psychologiques ... [more ▼]

Il existe une multitude de facteurs d'influence qui rendent la prévision d'une participation à l'activité sportive particulièrement délicate: influences biologiques et démographiques, psychologiques, sociales et environnementales. ... [less ▲]

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See detailNo-carrier-added asymmetric synthesis of alpha-methyl-alpha-amino acids labelled with fluorine-18
Damhaut, Philippe; Lemaire, Christian ULg; Plenevaux, Alain ULg et al

in Tetrahedron (1997), 53(16), 5785-5796

Various [18F]fluoro aromatic α-methyl-L-amino acids 11 have been synthesized with high enantiomeric purity (ee > 97%). These new radiopharmaceuticals for Positron Emission Tomography (PET), potential ... [more ▼]

Various [18F]fluoro aromatic α-methyl-L-amino acids 11 have been synthesized with high enantiomeric purity (ee > 97%). These new radiopharmaceuticals for Positron Emission Tomography (PET), potential inhibitors of enzymatic functions, were regiospecifically labelled by nucleophilic substitution on trimethylammoniumbenzaldehyde triflate precursors 9. The [18F]fluoro aromatic aldehydes 12 obtained were easily converted to the corresponding [18F]fluorobenzyl halides [13 (X = 1)]. After alkylation of the lithium enolate of (2S,5S)-l-tert-Boc-2-tert-butyl-3,5-dimethyl-imidazolidin-4-one 2, the adducts were cleaved to give, after HPLC purification, various [18F]fluoro-α-methyl amino acid analogs with radiochemical yields of 10% (End of Bombardment, EOB) after a synthesis time of 120 min. The corresponding [19F]fluorinated amino acids 4 and [19F]fluoro intermediates were also prepared. [less ▲]

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See detailA Deletion in the Bovine Myostatin Gene Causes the Double-Muscled Phenotype in Cattle
Grobet, L.; Martin, L. J.; Poncelet, D. et al

in Nature Genetics (1997), 17(1), 71-74

An exceptional muscle development commonly referred to as 'double-muscled' (Fig. 1) has been seen in several cattle breeds and has attracted considerable attention from beef producers. Double-muscled ... [more ▼]

An exceptional muscle development commonly referred to as 'double-muscled' (Fig. 1) has been seen in several cattle breeds and has attracted considerable attention from beef producers. Double-muscled animals are characterized by an increase in muscle mass of about 20%, due to general skeletal-muscle hyperplasia-that is, an increase in the number of muscle fibers rather than in their individual diameter. Although the hereditary nature of the double-muscled condition was recognized early on, the precise mode of inheritance has remained controversial; monogenic (domainant and recessive), oligogenic and polygenic models have been proposed. In the Belgian Blue cattle breed (BBCB), segregation analysis performed both in experimental crosses and in the outbred population suggested an autosomal recessive inheritance. This was confirmed when the muscular hypertrophy (mh) locus was mapped 3.1 cM from microsatellite TGLA44 on the centromeric end of bovine chromosome 2 (ref. 5). We used a positional candidate approach to demonstrate that a mutation in bovine MSTN, which encodes myostatin, a member of the TGF beta superfamily, is responsible for the double-muscled phenotype. We report an 11-bp deletion in the coding sequence for the bioactive carboxy-terminal domain of the protein causing the muscular hypertrophy observed in Belgian Blue cattle. [less ▲]

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See detailPit-1 gene polymorphism, milk yield, and conformation traits for Italian Holstein-Friesian bulls
Renaville, Robert ULg; Gengler, Nicolas ULg; Vrech, E. et al

in Journal of Dairy Science (1997), 80(12), 34313438

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See detailCompte rendu de A. Krug, Heilkunst und Heilkult. Medizin in der Antike, 2e édition, München, 1993
Marganne, Marie-Hélène ULg

in Revue Belge de Philologie et d'Histoire (1997), 75(1), 213-214

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See detailAlteration of radiation response in vitro by simultaneous modulation of the de novo and salvage pathways to deoxynucleoside triphosphate pool by (E)-2′-Deoxy-(Fluoromethylene)cytidine and thymidine analogs
Coucke, Philippe ULg; Li, Ye-Xiong; Cottin, Eliane et al

in International Journal of Radiation, Oncology, Biology, Physics (1997), 39(2 (supp1)), 257

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See detailIn vivo study of enhancing factors for guided bone formation
Biewer, Bob; Van Heusden, Alain ULg; Rompen, Eric ULg

in Journal of Clinical Periodontology (1997), 11

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See detailCharacterization of non pigmented B16 melanoma cell-derived cytotoxic factors.
Siwek, B.; De Pauw, Marie-Claire ULg; Quetin-Leclercq, J. et al

in Chemico-Biological Interactions (1997), 103(1), 59-73

We analyzed and tried to characterize substance(s) responsible for cytotoxic activities detected in culture media conditioned by non pigmented B16 melanoma cells (NPB16). The different cytological tests ... [more ▼]

We analyzed and tried to characterize substance(s) responsible for cytotoxic activities detected in culture media conditioned by non pigmented B16 melanoma cells (NPB16). The different cytological tests used showed that ultrafiltrated conditioned media (CM U1 fraction) contained several cytotoxic factors with a Mw lower than 1000 Da. These factors seemed to act either directly or indirectly on cell membranes, mitochondria, on the cell cycle and on protein and DNA synthesis. A cytotoxic activity could be found even after high dilution of CM U1. These cytotoxic factors were rapidly released by B16 cells in culture, independently of cell confluence. Their activities in the treated cells were also very fast and the cytotoxic effects were irreversible after only a few hours of treatment. These factors were not intermediate products during melanogenesis, neither polyamines, nor proteases. At least one of them seemed to be a small acidic and basic stable peptide without disulfide bounds but not heat stable. The synthesis of at least one of these cytotoxic factors was inhibited by cycloheximide and the cytotoxic activity was partially destroyed by pronase and trypsin, but not by pepsin. The cytotoxicity was not modified by copper complexants or free radical inhibitors (bovine serum albumin (BSA), tyrosine, superoxyde dismutase (SOD), catalase, vitamin E). Furthermore the levels of glutathione peroxydase activity and reduced glutathione did not change after treatment by CM U1 as compared to controls. [less ▲]

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See detailExamen échographique de l'articulation métacarpo-phalangienne. Corrélation signes échographiques - lésions
Denoix, Jean-Marie; Thill, Emanuelle; Houliez, Didier et al

in Pratique Vétérinaire Equine (1997), 29

This paper is the result of an ex-vivo study on ultrasonography of the equine fetlock. Abnormal findings in equine isolated limbs have been compared to macroscopic findings after dissections and ... [more ▼]

This paper is the result of an ex-vivo study on ultrasonography of the equine fetlock. Abnormal findings in equine isolated limbs have been compared to macroscopic findings after dissections and sensitivity and specificity of the technique have been calculated. [less ▲]

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See detailLe dessaisissement du juge d'instruction
Jacobs, Ann ULg

in Revue de Droit Pénal et de Criminologie (1997)

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See detailHepatocyte transplantation prolongs survival and prevent development of brain edema in pigs with ischemic liver failure
Arkadopoulos, N.; Chen, S.; Khalili, T. et al

in Surgical Forum (1997), 44

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See detailUne route mérovingienne en Hautes-Fagnes (La Via Mansuerisca ?). Derniers résultats scientifiques.
Streel, Maurice ULg

in Bulletin de l"Académie Royale de Belgique, Classe Sciences 6e série (1997), VIII(7-12), 367-376

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See detailCompte rendu de L. Couloubaritsis, J.-J. Wunenburger, La couleur, Bruxelles, 1993 (Recueil, 4)
Marganne, Marie-Hélène ULg

in Archives Internationales d'Histoire des Sciences (1997), 47

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See detailChanging sensitivity to duration in human scalar timing: An experiment, a review, and some possible explanations
Ferrara, André ULg; Lejeune, Helga ULg; Wearden, J. H.

in Quarterly Journal of Experimental Psychology. B, Comparative & Physiological Psychology (1997), 50B

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See detailSympathetic modulation of hypoxic pulmonary vasoconstriction in intact dogs
Brimioulle, Serge; Vachiéry, Jean-Luc; Brichant, Jean-François ULg et al

in Cardiovascular Research (1997), 34

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See detailMoufang affine buildings have Moufang spherical buildings at infinity
Van Maldeghem, H.; Van Steen, Kristel ULg

in Glasgow Mathematical Journal (1997), 39(Part 3), 237-241

We show in a direct and elementary way that the spherical building at infinity of every rank 3 affine building which satisfies Tits' Moufang condition, is itself a Moufang building. This result is also ... [more ▼]

We show in a direct and elementary way that the spherical building at infinity of every rank 3 affine building which satisfies Tits' Moufang condition, is itself a Moufang building. This result is also true for higher rank affine buildings by Tits' classification [4]. [less ▲]

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See detailDarkness promotes flowering in the absolute long-day requiring plant, Lolium temulentum L. Ceres
Périlleux, Claire ULg; Bernier, Georges ULg; Kinet, Jean-Marie

in Journal of Experimental Botany (1997), 48(307), 349--351

Vegetative plants of the long-day grass Lolium temulentum L. Ceres were exposed to threshold long days or light breaks. Protracted darkness given just afterwards clearly promoted flowering and was weakly ... [more ▼]

Vegetative plants of the long-day grass Lolium temulentum L. Ceres were exposed to threshold long days or light breaks. Protracted darkness given just afterwards clearly promoted flowering and was weakly inductive on its own. The promotive effect of darkness was restricted to floral induction since further apical development was weak. [less ▲]

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See detailProprietes interfaciales des films de gluten de farines de qualites boulangeres differentes.
Balla, A.; Blecker, Christophe ULg; Razafindralambo, Hary ULg et al

in Sciences des Aliments (1997), 17(3), 271-278

Interfacial properties of gluten proteins are important in determining flour breadmaking quality especially the gas bubbles stability in dough, which influences the loaf volume and crumb texture. The ... [more ▼]

Interfacial properties of gluten proteins are important in determining flour breadmaking quality especially the gas bubbles stability in dough, which influences the loaf volume and crumb texture. The interfacial properties of gluten extracted from four commercial flours have been studied. The behaviour of gluten monolayer spread at the air-water interface is influenced by the gliadins/glutenins ratio. Films of gluten extracted from flours with high gliadins/glutenins ratio spread more quickly, present a higher stability (Pi c) and are more resistant under high compression. [less ▲]

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See detailEtablissement d'un plan volontaire de contrôle de la rhinotrachéite infectieuse bovine en région wallonne de Belgique
De Wergifosse, Bertrand; Lemaire, Mylène; Pastoret, Paul-Pierre ULg et al

in Annales de Médecine Vétérinaire (1997), 141

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See detailHuman TEF-5 is preferentially expressed in placenta and binds to multiple functional elements of the human chorionic somatomammotropin-B gene enhancer
Jacquemin, Patrick; Martial, Joseph ULg; Davidson, Irwin

in Journal of Biological Chemistry (1997), 272(20), 12928-37

We report the cloning of a cDNA encoding the human transcription factor hTEF-5, containing the TEA/ATTS DNA binding domain and related to the TEF family of transcription factors. hTEF-5 is expressed in ... [more ▼]

We report the cloning of a cDNA encoding the human transcription factor hTEF-5, containing the TEA/ATTS DNA binding domain and related to the TEF family of transcription factors. hTEF-5 is expressed in skeletal and cardiac muscle, but the strongest expression is observed in the placenta and in placenta-derived JEG-3 choriocarcinoma cells. In correlation with its placental expression, we show that hTEF-5 binds to several functional enhansons of the human chorionic somatomammotropin (hCS)-B gene enhancer. We define a novel functional element in this enhancer comprising tandemly repeated sites to which hTEF-5 binds cooperatively. In the corresponding region of the hCS-A enhancer, which is known to be inactive, this element is inactivated by a naturally occurring single base mutation that disrupts hTEF-5 binding. We further show that the binding of the previously described placental protein f/chorionic somatomammotropin enhancer factor-1 to TEF-binding sites is disrupted by monoclonal antibodies directed against the TEA domain and that this factor is a proteolytic degradation product of the TEF factors. These results strongly suggest that hTEF-5 regulates the activity of the hCS-B gene enhancer. [less ▲]

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See detailLe syndrome hépato-pulmonaire
Lamproye, Anne ULg; Weber, T.; Delwaide, Jean ULg et al

in Revue Médicale de Liège (1997), 52(10), 666-670

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See detailComment j'explore ... un patient avec hypotension orthostatique.
Scheen, André ULg; De Fooz, Geoffroy; Marchand, Monique ULg

in Revue Médicale de Liège (1997), 52(2), 116-9

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See detailDifferential expression of galectin 3 and galectin 1 in colorectal cancer progression.
Sanjuan, X.; Fernandez, P. L.; Castells, A. et al

in Gastroenterology (1997), 113(6), 1906-15

BACKGROUND & AIMS: Galectins are beta-galactoside-binding proteins possibly involved in tumor progression. The aim of this study was to determine the pattern of galectin 3 and galectin 1 expression and ... [more ▼]

BACKGROUND & AIMS: Galectins are beta-galactoside-binding proteins possibly involved in tumor progression. The aim of this study was to determine the pattern of galectin 3 and galectin 1 expression and involvement in colorectal cancer progression. METHODS: Galectin 3 expression was examined immunohistochemically in 39 samples of normal mucosae, 25 adenomas, 87 carcinomas, and 39 lymph node metastases. Galectin 1 was analyzed in 25 samples of mucosae, 15 adenomas, 25 carcinomas, and 11 metastases. Western blot analysis was also performed. RESULTS: All normal mucosae showed strong nuclear galectin 3 expression, which was down-regulated in the neoplastic progression, because only 60% of adenomas, 48% of carcinomas, and 44% of metastases were strongly positive (P < 0.0001). Cytoplasmic expression was down-regulated in adenomas (16%) but increased again in carcinomas (64%) (P < 0.0001). Galectin 1 expression was mainly detected in stromal cells and correlated with tumor progression from normal mucosae to adenomas and carcinomas (P < 0.0001). CONCLUSIONS: Galectin 3 expression is down-regulated in the initial stages of neoplastic progression, whereas a dissociated cytoplasmic expression increases in later phases of tumor progression. Galectin 1 in colorectal mucosa is predominantly a stromal product whose overexpression is associated with the neoplastic progression of colorectal cancer. [less ▲]

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See detailEvidence for enhanced inflammatory cell activity, ICAM-1 expression and eosinophil chemotactic activity in the sputum of asthmatics.
Louis, Renaud ULg; Shute, J.; Biaggi, S. et al

in American Journal of Respiratory & Critical Care Medicine (1997), 155(2), 466-472

We have applied the technique of sputum induction by hypertonic saline in asthmatics and nonatopic control subjects to study an array of indices of airway inflammation believed to be relevant to asthma ... [more ▼]

We have applied the technique of sputum induction by hypertonic saline in asthmatics and nonatopic control subjects to study an array of indices of airway inflammation believed to be relevant to asthma pathogenesis. Compatible with a central role for eosinophils and mast cells in asthma, sputum of asthmatic subjects contained increased numbers of eosinophils and levels of eosinophil cationic protein (ECP) and mast cell tryptase. Eosinophil numbers, and ECP and histamine levels correlated with the degree of methacholine airways responsiveness, and ECP, tryptase, and histamine correlated with raised concentrations of albumin. Using the micro-Boyden chamber technique eosinophil chemotactic activity was identified only in the sputum from asthmatics. The correlation between the raised levels of total IgA, IL- 8/IgA complexes, and tryptase and the degree of sputum eosinophilia and ECP levels, suggests possible mechanisms for eosinophil chemotaxis and activation in asthma. Row cytometric analysis of sputum lymphocytes showed an increase in CD4+ T cells and T cells expressing intercellular adhesion molecule-1 (ICAM-1) in asthma which, together with the finding of raised levels of soluble ICAM-1 in the sputum, indicates upregulation of this adhesion molecule. Finally, the proportion of CD16+ natural killer (NK) cells was reduced in the sputum of asthmatics. These observations highlight the importance of the airway inflammation in causing asthma and further confirm the usefulness of sputum induction as a tool in asthma research. [less ▲]

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See detailThe spectrum of 67-kD laminin receptor expression in breast carcinoma progression.
Viacava, P.; Naccarato, A. G.; Collecchi, P. et al

in Journal of Pathology (The) (1997), 182(1), 36-44

Laminin is a glycoprotein of the basement membrane (BM), involved in a variety of normal and pathological cellular events including tumour invasion and metastasis. Cells bind laminin through different ... [more ▼]

Laminin is a glycoprotein of the basement membrane (BM), involved in a variety of normal and pathological cellular events including tumour invasion and metastasis. Cells bind laminin through different types of receptor. The 67-kD laminin receptor (67LR) is a cell-surface protein which binds laminin with high affinity. 67LR expression has been shown to increase in neoplastic cells, compared with normal tissues, and 67LR seems to play an important role during the first steps of neoplastic progression. In this study, 67LR expression was analysed during the morphological phases of breast cancer progression from normal tissue to invasive carcinoma. A total of 506 formalin-fixed, paraffin-embedded normal breast structures and lesions were stained by immunohistochemistry usign the MLuC5 monoclonal antibody, which is specific for 67LR. The results show that in normal breast and in any kind of breast lesion, myoepithelial and endothelial cells express 67LR. While 67LR is not seen in the epithelium of normal breast, cysts, adenosis, and benign tumours, it is expressed in the epithelial cells of several hyperplasias and carcinomas in situ, both ductal and lobular, as well as in all invasive carcinomas. The 67LR-positive cell subpopulation expands from hyperplastic lesions to invasive carcinoma, suggesting that 67LR could be related to the induction and progression of breast cancer. [less ▲]

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See detailObesity and nutrition. The Belgian Luxembourg Child Study.
Guillaume, Michèle ULg; Lapidus, L.; Beckers, F. et al

in Obesity Research (1997)

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See detailColestasis asociada a ticlopidina
Diaz Fuenzalida, A.; VALDES SOCIN, Hernan Gonzalo ULg; Laudano, O. et al

in Gastroenterologia y Hepatologia (1997), 20(3), 128-30

The case of a 56-years-old male with cholestasis associated with ticlopidine is presented. Cholestasis is an infrequent adverse effect of this drug. The patient was admitted to hospital because of ... [more ▼]

The case of a 56-years-old male with cholestasis associated with ticlopidine is presented. Cholestasis is an infrequent adverse effect of this drug. The patient was admitted to hospital because of jaundice, choluria, and itching of one month of evolution. The patient had taken ticlopidine twice a day for 3 months up to one week prior to admission for peripheral arteriopathy. Biopsy was performed showing acinar cholestasis and portal inflammatory infiltrate compatible with cholestasis due to hypersensitivity. Ticlopidine was discontinued by the patient himself one week prior to admission. The drug was not readministered and the evolution of the clinical and biochemical parameters of cholestasis decreased. The patient was asymptomatic and laboratory data were normal 4 months later. [less ▲]

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See detailEtude morphométrique du sabot et du petit sésamoïde du cheval
Gabriel, Annick ULg; Detilleux, J.; Jolly, S. et al

in Annales de Médecine Vétérinaire (1997), 147

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See detailMemory kernels and effective Hamiltonians from time dependent methods. I. Predissociation with a curve crossing
Desouter, Michèle ULg; Liévin, Jacques

in Journal of Chemical Physics (1997), 107

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See detailSpinal ischaemia after surgery for abdominal infrarenal aortic aneurysm. Diagnosis with nuclear magnetic resonance.
Defraigne, Jean-Olivier ULg; OTTO, Bernard ULg; SakalihasanN, Natzi ULg et al

in Acta Chirurgica Belgica (1997), 97(5), 250-6

A 76-year-old man underwent surgery for an infrarenal aortic aneurysm reaching 6 cm in maximal transverse diameter. The aorta was crossclamped below the level of the renal arteries. A tube graft was ... [more ▼]

A 76-year-old man underwent surgery for an infrarenal aortic aneurysm reaching 6 cm in maximal transverse diameter. The aorta was crossclamped below the level of the renal arteries. A tube graft was interposed and tend between the infrarenal aorta and the aortic bifurcation. Due to leakage on the suture line two consecutive episodes of crossclamping for a total duration of 40 min. were required. No hypotension was noted during or after the procedure. After operation, the patient complained of difficulties to move both legs and neurologic examination demonstrated paraparesis, with mild sensory deficit. Faecal and urinary incontinences were also noted and urodynamic testing demonstrated sphincterovesical palsy. Nuclear magnetic resonance imaging detected an ischaemic zone in the spinal cord at the level of T11. Faecal incontinence and motor deficit partially resolved but no bladder function recovery was observed. Spinal ischaemia is a rare complication after abdominal aortic surgery. Several risk factors have been suggested which include level and duration of the aortic crossclamping, possible interruption of the spinal cord blood supply via the greater medullary artery (the so-called artery of Adamkiewicz), presence of intra- or postoperative episodes of hypotension, atheromatous embolization, underlying occlusive arteriosclerosis of spinal arteries, and respect or not of the hypogastric circulation. In our case, the duration of the crossclamping and interruption of the blood flow in lumbar arteries probably supplying the distal spinal cord were likely contributive factors. [less ▲]

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See detailUtilisation de l'habitat par la sérotine commune Eptesicus serotinus en Lorraine belge
Kervyn, Thierry; Brasseur, Jasmine; Libois, Roland ULg

in Bulletin de la Société Neuchâteloise des Sciences Naturelles (1997), 120(2), 35-41

The radiotracking of 10 serotine bats during a period of 73 nights shows that the animals hunt mainly at forest edges and above meadows. The mean distance between the main diurnal roost and hunting ... [more ▼]

The radiotracking of 10 serotine bats during a period of 73 nights shows that the animals hunt mainly at forest edges and above meadows. The mean distance between the main diurnal roost and hunting grounds is 2.1 +/- 1.2 km (n = 24). Secondary diurnal roosts are used within a radius of 250 m of the main diurnal quarters. Nocturnal resting places are situated in beech forests (Fagus sylvatica) near feeding areas. The activity area (minumum area method) of radiotracked serotine bats, all originating from the same colony, stretches to 15.8 km². [less ▲]

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See detailRésultats à une enquête internationale en mathématiques
Monseur, Christian ULg

in Mathématiques & pédagogie (1997), 114

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See detailField observations of the spawning behaviour of European grayling
Darchambeau, François ULg; Poncin, Pascal ULg

in Journal of Fish Biology (1997), 51(5), 1066-1068

During observations of the River Ourthe, Belgium, 70 spawning attempts were recorded during the reproductive period of the European grayling. Thirty-six per sent of the spawning attempts proceeded to ... [more ▼]

During observations of the River Ourthe, Belgium, 70 spawning attempts were recorded during the reproductive period of the European grayling. Thirty-six per sent of the spawning attempts proceeded to completion, while interference by another male may explain some of the incomplete acts. Sneaking behaviour was observed and one spawning act included two males and one female. (C) 1997 The Fisheries Society of the British Isles. [less ▲]

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See detailLuc et Jean-Pierre Dardenne. Vingt ans de travail en cinéma et vidéo (1976-1996)
Van Cauwenberge, Geneviève ULg; Bajomée, Danielle ULg; Delruelle, Edouard ULg et al

in Revue belge du cinéma (1997), 41(Hiver), 96

Historical and analytical overview of the Dardenne’s cinématographic and videographic work from 1976 to 1996, with an interview with Luc and Jean-Pierre Dardenne. A lot of issues about the survivor’s ... [more ▼]

Historical and analytical overview of the Dardenne’s cinématographic and videographic work from 1976 to 1996, with an interview with Luc and Jean-Pierre Dardenne. A lot of issues about the survivor’s memory, the history consciousness, the wounds of memory, the survivor’s speech ; the memory of the social struggle ; the derelction and the transformation of the society ; the résistance ; the videographic and filmic forms and patterns (landscape, face, water, reality) ; the theatrical space and the relations between theatre and cinéma. [less ▲]

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See detailTiming effect of combined radioimmunotherapy and radiotherapy on a human solid tumor in nude mice.
Coucke, Philippe ULg; Lin-Quan, Sun; Vogel, Charles-André et al

in Cancer Research (1997), 57

Timing effects of radioimmunotherapy (HIT) combined with external beam radiotherapy (RT) were assessed In human colon carcinoma xe nografts. Initially, dose effects offractlonated RT and RIT were ... [more ▼]

Timing effects of radioimmunotherapy (HIT) combined with external beam radiotherapy (RT) were assessed In human colon carcinoma xe nografts. Initially, dose effects offractlonated RT and RIT were evaluated separately. Then, 30 Gy RT (10 fractions over 12 days) were combined with three weekly Lv. injections of 200 g@Ci of 131I-labeled anti-carcino embryonic antigen monoclonal antibodies in four different treatment schedules. RIT was given either prior to, concurrently, Immediately after, or 2 weeks after RT administration. The longest regrowth delay (RD) of 105 days was observed in mice treated by concurrent administration of RT and lilT, whereas the RDs of RT and RIT alone were 34 and 20 days, respectively. The three sequential combination treatments produced sig nificantly shorter RDs ranging from 62 to 70 days. The tumor response represented by the minimal volume (MV) also showed that concurrent administration of RT and RIT gave the best result, with a mean MV of 4.5% as compared to MVs from 26 to 53% for the three sequential treatments. The results were confirmed In a second experiment, In which a RT of 40 Gy was combined with an identical lilT as above (three injections of 200 g&Ci of ‘31I-labeled monoclonal antibodies). At compa rable toxicity levels, the maximum tolerated RT or BIT alone gave shorter RDs and less tumor shrinkage compared to slinultaneous RT+RIT. These results may be useful for designing clinical protocols ofcombined RIT and RT. [less ▲]

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See detailEn mai élis qui te plaît
Durand, Pascal ULg

in Liège Université (1997), (été), 3

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See detailDensity-functional theory of polar insulators
Gonze, X.; Ghosez, Philippe ULg; Godby, R. W.

in Physical Review Letters (1997), 78(2), 294-297

We examine the density-functional theory of macroscopic insulators, obtained in the large-cluster limit or under periodic boundary conditions. For polar crystals, we find that the two procedures are not ... [more ▼]

We examine the density-functional theory of macroscopic insulators, obtained in the large-cluster limit or under periodic boundary conditions. For polar crystals, we find that the two procedures are not equivalent. In a large-cluster case, the exact exchange-correlation potential acquires a homogeneous ''electric field'' which is absent from the usual local approximations, and the Kohn-Sham electronic system becomes metallic. With periodic boundary conditions, such a field ist forbidden, and the polarization deduced from Kohn-Sham wave functions is incorrect even if the exact functional is used. [less ▲]

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See detailSoil oribatid mite communities (Acari: Oribatida) from high Shaba (Zaïre) in relation to vegetation
Noti, M.-I.; André, H. M.; Dufrêne, Marc ULg

in Applied Soil Ecology (1997), 5(1), 81-96

Soil oribatid mite communities from three vegetation types (forest, woodland and savanna) are described in Luiswishi (high Shaba, Zaïre) and 151 species were recorded. Oribatid communities are organized ... [more ▼]

Soil oribatid mite communities from three vegetation types (forest, woodland and savanna) are described in Luiswishi (high Shaba, Zaïre) and 151 species were recorded. Oribatid communities are organized along a successional gradient which parallels the regressive sere defined by phytosociologists and going from the dense forest ("muhulu"), the local climax, to the savanna, passing through the woodland ("miombo"). Within this gradient, oribatid communities may vary depending on the habitat (presence of grass, high termitaria). The impact of seasons (dry vs. rainy season) is weak in the forest but drastic in savanna. The various soil oribatid communities are related to man's activities since the regressive sere results from repeated burnings and associated agricultural practices. [less ▲]

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See detailThe early stages of photosystem II assembly monitored by measurements of fluorescence lifetime, fluorescence induction and isoelectric focusing of chlorophyll-proteins in barley etiochloroplasts
MysliwaKurdziel, B.; Barthelemy, X.; Strzalka, K. et al

in Plant & Cell Physiology (1997), 38(11), 1187-1196

The relationship between functional and structural aspects of PSII formation during greening of etiolated barley leaves has been investigated using fluorescence life-time measurements, fluorescence ... [more ▼]

The relationship between functional and structural aspects of PSII formation during greening of etiolated barley leaves has been investigated using fluorescence life-time measurements, fluorescence kinetics analysis and analysis of chlorophyll-protein complexes by IEF-PAGE, Two phases of different character could be distinguished in the course of the greening process in dark-grown plants, An early phase covering the first 3-4 h after the onset of illumination and a late phase covering the subsequent greening, During the first phase the formation of PSII reaction centers and their minor antenna components was observed as manifested by the IEF-PAGE polypeptide pattern, This was accompanied by shortening of the slow and middle components of the fluorescence lifetime, as well as by the rapid drop in the amplitude of the slow component, A room temperature emission band at 676 nm was associated with uncoupled chlorophyll and with the slow fluorescence lifetime component during the first hours of greening. During the late greening phase peripheral light-harvesting complexes of PSII were formed concomitantly to an increase in lifetime and amplitude of the fast component and to a further decrease in the lifetime of the middle component, The gradual increase in PSII complexity during both phases of greening was also manifested by changes in proportion and kinetic properties of PSIIalpha and PSIIbeta units. Similar changes in fluorescence lifetime components as in the late greening of dark-grown plants were also observed in intermittent-light plants during continuous greening associated with the development of PSII antenna. The relationships between fluorescence lifetime characteristics and development of PSII are discussed in terms of a stepwise mechanism invoving a first step of Chl integration into small size PSII units followed by progressive increase of antenna size. [less ▲]

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See detailMeedogenloze schoonheid. De laatste gedichten van Paul van Ostaijen en Hans Faverey
Spinoy, Erik ULg

in Spiegel der Letteren (1997), 39(2), 183-203

This article reads two poems by Paul van Ostaijen and Hans Faverey, and goes on to demonstrate that both can be considered to be the fruit of an aesthetics of the sublime.

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See detailPsychiatrie de liaison:regards sur une pratique de la psychologie médicale en hôpital général
Triffaux, Jean-Marc ULg

in Revue francaise de psychiatrie et de psychologie médicale (1997)

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See detailExpression of interstitial collagenase (matrix metalloproteinase-1) is related to the activity of human endometriotic lesions
Kokorine, Isabelle; NISOLLE, Michelle ULg; Donnez, Jacques et al

in Fertility and Sterility (1997), 68(2), 246-251

Objective: To determine whether interstitial collagenase (matrix metalloproteinase-1), known to play a pivotal role in the initiation of menstruation, contributes to the pathogenesis of endometriosis ... [more ▼]

Objective: To determine whether interstitial collagenase (matrix metalloproteinase-1), known to play a pivotal role in the initiation of menstruation, contributes to the pathogenesis of endometriosis. Design: Serial sections of peritoneal red and black endometriotic lesions, ovarian endometriotic cysts, and rectovaginal adenomyotic nodules were analyzed by in situ hybridization for the expression of matrix metalloproteinase-1 by silver staining for the integrity of the fibrillar extracellular matrix and by immunolabeling for the abundance of sex steroid receptors. Setting: Academic hospital and research laboratory. Patient(s): Premenopausal women undergoing laparoscopy for endometriosis. Intervention(s): Biopsy of endometriotic lesions, combined with endometrium whenever possible. Main Outcome Measure(s): Expression of matrix metalloproteinase-1 messenger RNA (mRNA). Result(s): Matrix metalloproteinase-1 mRNA was expressed focally in red peritoneal and ovarian endometriosis irrespective of the phase of the menstrual cycle but was not detectable in black peritoneal and rectovaginal lesions. Foci of matrix metalloproteinase-1 expression closely correlated with matrix breakdown and with the absence of P receptors in adjacent epithelial cells. Conclusion(s): Correlation of matrix metalloproteinase-1 expression with activity of endometriotic tissue suggests its involvement in tissue remodeling and bleeding, and possibly in the secondary shedding and reimplantation of endometriotic lesions. [less ▲]

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See detailIgneous charnockites and related rocks from the Bjerkreim-Sogndal layered intrusion (Southwest Norway): a jotunite (hypersthene monzodiorite)-derived A-type granitoid suite
Duchesne, Jean-Clair ULg; Wilmart, Edith

in Journal of Petrology (1997), 38(3), 337-369

The upper part of the Bjerkreim-Sokndal layered intrusion (BKSK) comprises a suite of charnockitic granitoids (mangerite, quartz mangerite and charnockite) with some jotunites. The petrology and ... [more ▼]

The upper part of the Bjerkreim-Sokndal layered intrusion (BKSK) comprises a suite of charnockitic granitoids (mangerite, quartz mangerite and charnockite) with some jotunites. The petrology and geochemistry (major and trace elements) of 8 main rock types (88 samples) are considered. The rocks form a suite of K2O-rich alkali-calcic granitoids of A-type, deriving from jotunitic magma. Two trends of inferred liquids are distinguished: the main liquid line of descent which passes from jotunites through 2-pyroxene quartz mangerites to amphibole charnockites, the second one which encompasses olivine-bearing quartz mangerites and charnockites and is rooted into mangeritic liquids. Comparison with the Tellnes rock series reveals that contamination by leucogranitic material has taken place simultaneously with fractional crystallization in both BKSK trends. Zr, Rb, Cs, and Th are particularly sensitive to assimilation and the higher water content in BKSK. Zircon and apatite have saturated at the liquidus of quartz mangerite around 900°C, close to the FMQ buffer. The two-pyroxene quartz mangerites cannot have been equilibrated with the mangerite cumulates on which they rest. A major influx of magma took place when mangeritic cumulates were being deposited. It mingled and partly mixed with the resident contaminated magma. [less ▲]

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See detailSurface Molecular Structure of Self-Assembled Alkanethiols Evidenced by UPS and Photoemission with Synchrotron Radiation
Duwez, Anne-Sophie ULg; Di Paolo, Stéphanie; Ghijsen, Jacques et al

in Journal of Physical Chemistry B (1997), 101

With the aim of investigating the configurational and conformational characteristics of monolayers of alkanethiols on gold by means of a photoemission experiment, we compare the valence data obtained from ... [more ▼]

With the aim of investigating the configurational and conformational characteristics of monolayers of alkanethiols on gold by means of a photoemission experiment, we compare the valence data obtained from these layers using synchrotron radiation and ultraviolet photoemission spectroscopy (UPS). The incident energy used for synchrotron radiation has been chosen very close to the Cooper minimum of the 5d levels of gold, in order to limit as much as possible interference from the substrate. The recorded spectra differ markedly from one sample to another, notwithstanding their closely related chemical nature. These variations are compared consistently with semiquantitative simulations on model clusters and found thereby to reflect specifically the influence of the connectivity and of specific interactions on the electronic structure of long hydrocarbon chains [less ▲]

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See detailPrévention de l’ostéoporose
Reginster, Jean-Yves ULg

in Medi-Sphere (1997), 6

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See detailIn vivo binding of [F-18]altanserin to rat brain 5HT(2) receptors: A film and electronic autoradiographic study
Biver, Françoise; Lotstra, Françoise; Monclus, M. et al

in Nuclear Medicine and Biology (1997), 24(4), 357-360

To further validate its use in positron emission tomography (PET), we studied the binding of [18F]altanserin, a specific 5HT2 radioligand, in the rat brain using in vivo autoradiography. Distribution of ... [more ▼]

To further validate its use in positron emission tomography (PET), we studied the binding of [18F]altanserin, a specific 5HT2 radioligand, in the rat brain using in vivo autoradiography. Distribution of [18F]altanserin binding was comparable to the in vitro mapping of 5HT2 receptors reported in the literature. Selective displacers were used to test the reversibility and the selectivity of this radioligand. Specific binding of [18F]altanserin in the rat frontal cortex was quantified by direct counting with an electronic imaging system and by quantification on digitalized autoradiograms. Close results of about 30 pmol/g were obtained with both methods. Our data confirmed that [18F]altanserin is a valid tracer for 5HT2 receptors binding studies. [less ▲]

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See detailA propos d'un cas de rupture myocardique dans un traumatisme thoracique ferme.
Demarche, M.; SakalihasanN, Natzi ULg; Limet, Raymond ULg

in Revue Médicale de Liège (1997), 52(2), 105-9

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See detailFin du Millénaire - fin de l'Agriculture
Schirmer, Jacek; Schmitz, Serge ULg

in Bulletin de la Société Géographique de Liège (1997), 33

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See detailDamping rates of hard momentum particles in a cold ultrarelativistic plasma
Vanderheyden, Benoît ULg; Ollitrault, J. Y.

in Physical Review. D : Particles and Fields (1997), 56(8), 5108-5122

We compute the damping rates of one-particle excitations in a cold ultrarelativistic plasma to leading order in the coupling constant e for three types of interaction: Yukawa coupling to a massless scalar ... [more ▼]

We compute the damping rates of one-particle excitations in a cold ultrarelativistic plasma to leading order in the coupling constant e for three types of interaction: Yukawa coupling to a massless scalar boson, QED, and QCD. Damping rates of charged particles in QED and QCD are of order e(3) mu, while the damping rates of other particles are of order e(4) mu or e(4) mu log(1/e). We find that the damping rate of an electron or of a quark is constant far from the Fermi surface, and decreases linearly with the excitation energy close to the Fermi surface. This unusual behavior is attributed to the long-range magnetic interactions. [less ▲]

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See detailGenetic Diversity In Lima Bean (Phaseolus Lunatus L) As Revealed By Rapd Markers
Fofana, B.; Vekemans, X.; Du Jardin, Patrick ULg et al

in Euphytica (1997), 95(2),

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