References of "1991"
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See detailGrowth Factor Interactions in Cultures of Dissociated Adult Acoustic Ganglia: Neuronotrophic Effects
Lefebvre, P. P.; Van de Water, T. R.; Weber, T. et al

in Brain Research (1991), 567(2), 306-12

Auditory neurons cultured from adult rat acoustic ganglia require for survival either a substrate bound factor(s) present in astrocyte conditioned medium or substrate bound basic fibroblast growth factor ... [more ▼]

Auditory neurons cultured from adult rat acoustic ganglia require for survival either a substrate bound factor(s) present in astrocyte conditioned medium or substrate bound basic fibroblast growth factor (bFGF). Nerve growth factor (NGF) is not a survival factor for these neurons in vitro, but when used in combination with substrate bound bFGF, NGF does vigorously stimulate a neuritogenesis response by these neurons. Transforming growth factor beta (TGF beta 1) enhances the survival effect that bFGF has on these adult auditory neurons but does not by itself promote their survival in dissociated acoustic ganglion cultures. We propose that there may be complex interactions and synergy exerted by these growth factors (i.e. bFGF, NGF, TGF beta 1) during injury to the inner ear. [less ▲]

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See detailL'immigration : menace pour l'Etat-nation ou révélateur de son caractère obsolète ?
Martiniello, Marco ULg

Scientific conference (1991, December 11)

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See detailLa protection fongicide du triticale
Cors, François; Bodson, Bernard ULg; Meeus, Patrick

in Conférence internationale sur les maladies des plantes (1991, December 03)

When applied at the "ear" stage of growth of triticale, a fungicide is profitable on average for seven years experiments realised from 1985 to 1991 in Belgian loamy region. Nevertheless this profitability ... [more ▼]

When applied at the "ear" stage of growth of triticale, a fungicide is profitable on average for seven years experiments realised from 1985 to 1991 in Belgian loamy region. Nevertheless this profitability is not assured every year. In wet summer season a supplementary early treatment shows interest. In this case, the "flag leaf" stage must be prefered to the "1st - 2nd node" one. [less ▲]

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See detailImportance du stade dernière feuille dans les schémas de lutte fongicide contre les maladies du blé d'hiver en Belgique
Meeus, Patrick; Bodson, Bernard ULg; Maraite, Henry

in Conférence internationale sur les maladies des plantes (1991, December 03)

In Belgium, the control of winter wheat diseases is very effective when fungicides are applicated at the emergence (GS 59) when one treatment take place before, it is better to spray at stage flag leaf ... [more ▼]

In Belgium, the control of winter wheat diseases is very effective when fungicides are applicated at the emergence (GS 59) when one treatment take place before, it is better to spray at stage flag leaf (GS 39). At this stage, some efficacity can be yet observed against eyespot; so the protection of cereal foot is combined with this of the foriar diseases. [less ▲]

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See detailThe Enterococcus Hirae R40 Penicillin-Binding Protein 5 and the Methicillin-Resistant Staphylococcus Aureus Penicillin-Binding Protein 2' Are Similar
el Kharroubi, Aboubaker; Jacques, Philippe; Piras, Graziella et al

in Biochemical Journal (1991), 280(Pt 2), 463-469

The penicillin-resistant Enterococcus hirae R40 has a typical profile of membrane-bound penicillin-binding proteins (PBPs) except that the 71 kDa PBP5 of low penicillin affinity represents about 50% of ... [more ▼]

The penicillin-resistant Enterococcus hirae R40 has a typical profile of membrane-bound penicillin-binding proteins (PBPs) except that the 71 kDa PBP5 of low penicillin affinity represents about 50% of all the PBPs present. Water-soluble tryptic-digest peptides were selectively produced from PBP5, their N-terminal regions were sequenced and synthetic oligonucleotides were used as primers to generate a 476 bp DNA fragment by polymerase chain reaction. On the basis of these data, the PBP5-encoding gene was cloned in Escherichia coli by using pBR322 as vector. The gene, included in a 7.1 kb insert, had the information for a 678-amino acid-residue protein. PBP5 shows similarity, in the primary structure, with the high-molecular-mass PBPs of class B. In particular, amino acid alignment of the enterococcal PBP5 and the methicillin-resistant staphylococcal PBP2' generates scores that are 30, for the N-terminal domains, and 53, for the C-terminal domains, standard deviations above that expected for a run of 20 randomized pairs of proteins having the same amino acid compositions as the two proteins under consideration. [less ▲]

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See detailDiscovery of the first eclipsing binary barium star
Jorissen, A.; Manfroid, Jean ULg; Sterken, C.

in The Messenger (1991), 66

Photometric monitoring of barium stars is discussed with particular attention given to the first eclipsing binary barium star, HD 46407. The spectroscopic ephemeris of HD 46407 was used to predict the ... [more ▼]

Photometric monitoring of barium stars is discussed with particular attention given to the first eclipsing binary barium star, HD 46407. The spectroscopic ephemeris of HD 46407 was used to predict the times of a possible eclipse of the companion by the barium star. It is concluded that the light curve of HD 46407 derived from the photometric observations in the D50 system displays a sharp 'primary' eclipse (companion behind the barium star) and a possible shallow 'secondary' eclipse. The primary eclipse occurred in November 1988 and had a depth of about 0.02 mag. [less ▲]

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See detailJHKLM standard stars in the ESO system
Bouchet, P.; Schmider, F. X.; Manfroid, Jean ULg

in Astronomy and Astrophysics. Supplement Series (1991), 91

A list of 199 standard stars suitable for the ESO standard photometric system at JHKLM is given. Faint stars (although brighter than K = 7.7) to be used on larger telescopes are included. This list is ... [more ▼]

A list of 199 standard stars suitable for the ESO standard photometric system at JHKLM is given. Faint stars (although brighter than K = 7.7) to be used on larger telescopes are included. This list is based on an analysis of all infrared photometric observations carried out at La Silla from 1979 until 1989 inclusive. The accuracy of the data (about 0.02 mag. at J, H, K, L, and M) is similar to the one achieved at SAAO and CTIO. Comparisons with these systems, as well as with the AAO and MSSO systems, are made: it is shown that the ESO system is very close to the other ones, with the exception of CTIOs. [less ▲]

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See detailAnomalous Behaviour of a Protein During Sds/Page Corrected by Chemical Modification of Carboxylic Groups
Matagne, André ULg; Joris, Bernard ULg; Frère, Jean-Marie ULg

in Biochemical Journal (1991), 280((Pt 2)), 553-6

The 29,000-Mr Actinomadura R39 beta-lactamase exhibited a remarkably low electrophoretic mobility on SDS/PAGE, yielding an Mr value almost twice that computed from the corresponding gene sequence. We ... [more ▼]

The 29,000-Mr Actinomadura R39 beta-lactamase exhibited a remarkably low electrophoretic mobility on SDS/PAGE, yielding an Mr value almost twice that computed from the corresponding gene sequence. We showed that chemical modification of the carboxylic groups of glutamic acid and aspartic acid residues restored a normal electrophoretic mobility and that the anomalous behaviour of that protein on SDS/PAGE was due to its very large negative charge at neutral pH. We also compared the behaviour of the same enzyme on gel filtration in the presence of SDS with those of other class A beta-lactamases (Mr approx. 30,000). These experiments suggested that the very low electrophoretic mobility of the Actinomadura R39 beta-lactamase upon SDS/PAGE was more probably due to a low degree of SDS binding rather than to an unusual shape of the SDS-protein complex. [less ▲]

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See detailUnusual solar halos over La Silla
Hutsemekers, Damien ULg

in The Messenger (1991), 66

Not Available

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See detail“Le Sens Propre”. Figures de la défiguration chez Magritte et Camille Goemans
Durand, Pascal ULg

in Correspondance (1991), 2

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See detailRotational analysis of the a3Πr-X1Σ+ transition of 69Ga35Cl
Mahieu, Emmanuel ULg; DUBOIS, Iwan; BREDOHL, Harald

in Journal of Molecular Spectroscopy (1991), 150(2), 477-485

Six bands (0-0, 0-1, 0-2, 1-0, 2-0, 2-1) of 69Ga35Cl have been fully analyzed for the a-X transition, yielding equilibrium constants for the a3Π, state.

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See detailPolice et immigrés
Gailly, Philippe; Gavray, Claire ULg; Robert, Jocelyne ULg

Report (1991)

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See detailL'identité culturelle des jeunes francophones
Italiano, Patrick ULg

Report (1991)

Ce rapport décrit les résultats d'une enquête menée en Communauté Français en 1991 sur les sentiments d'appartenance, attitudes et opinions des jeunes de 12 à 26 ans

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See detailTestosterone Effects on Staining Density and Autoradiographic Investigations of the Alpha 2-Adrenergic Receptor in the Medial Preoptic Nucleus of the Japanese Quail: Relationship to the Activation of Reproductive Behavior
Balthazart, Jacques ULg; Sante, P.; Ball, G. F.

in Archives Internationales de Physiologie, de Biochimie et de Biophysique (1991), 99(6), 385-92

The effects of gonadectomy combined or not with testosterone (T) therapy on the sexual behavior, cloacal gland area, staining density and alpha 2-adrenergic receptors in the medial preoptic nucleus (POM ... [more ▼]

The effects of gonadectomy combined or not with testosterone (T) therapy on the sexual behavior, cloacal gland area, staining density and alpha 2-adrenergic receptors in the medial preoptic nucleus (POM) were studied in male and female Japanese quail. In castrated males, T increased the cloacal gland size and activated copulatory behavior. In agreement with previous reports, these effects were sexually differentiated: under the influence of T, cloacal gland growth was smaller and this treatment did not activate masculine sexual behavior in females. The optical density of the medial preoptic nucleus stained with thionein blue (Nissl stain) was decreased by castration and increased by T in both males and females. This suggests that T has a profound effect on the synthesis of proteins in the POM and, since POM is a critical site in the activation by T of masculine sexual behavior, these induced proteins are, in all probability, a part of the causal chain of biochemical events giving rise to copulatory behavior. The treatment with T had, by contrast, no clear effect on the number of binding sites and on the affinity of the alpha 2-adrenergic receptors in the POM. Therefore, if the noradrenergic transmission is involved in the induction by T of copulatory behavior, it is probably acting either through the alteration of another adrenergic receptor subtype or through the modulation of the baseline levels or turnover of the transmitter itself. [less ▲]

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See detailIndirect gateways to fermentation processes
Rikir, R.; Thonart, Philippe ULg

Conference (1991, December)

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See detailLe dépistage prénatal de la trisomie 21 sur sérum maternel. Mise au point
Koulischer, Lucien ULg; Schoos, Roland ULg; Verloes, Alain ULg et al

in Revue Médicale de Liège (1991), 46(12), 625-32

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See detailBéton armé de fibres de verres
Franssen, Jean-Marc ULg

Learning material (1991)

Quelques informations sur les propriétés mécaniques, une comparaison entre deux méthodes de mise en œuvre, effets de l'incorporation d'adjuvant acrylique, stud-frame cladding, bibliographie (5 références)

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See detailSHUGGIE OTIS
Sacré, Robert ULg

in Soul Bag (1991), (122), 12

Photo : SHUGGIE OTIS , Peer 1988

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