Réactivation du virus de la rhinotrachéite infectieuse bovine (Bovine herpesvirus 1; BHV 1) non accompagnée de réexcrétion de particules infectieuses, après injection de dexaméthasone, chez des bovins préalablement soumis au test d'hypersensibilité retardée au BHV 1Thiry, Etienne ; ; et alin Annales de Médecine Vétérinaire (1983), 127 Detailed reference viewed: 13 (5 ULg) Studies on the glomerular filtration barrier and on the urinary excretion of basement membrane glycoproteins during the accelerated model of nephrotoxic serum nephritis.; ; Foidart, Jean-Michel et alin Proceedings of the European Dialysis and Transplant Association. European Dialysis and Transplant Association (1983), 20 A proliferative glomerulonephritis was induced in rats preimmunised with rabbit IgG by injecting a sub-nephrotoxic dose of rabbit anti-rat GBM IgG. All the rats developed a severe proteinuria within 2-5 ... [more ▼] A proliferative glomerulonephritis was induced in rats preimmunised with rabbit IgG by injecting a sub-nephrotoxic dose of rabbit anti-rat GBM IgG. All the rats developed a severe proteinuria within 2-5 days after the injection of anti-GBM IgG. At the same time, many mononuclear phagocytes infiltrated the glomeruli, the colloidal iron staining of the glomerular filtration barrier was altered, and the urinary excretion of laminin and of neutral proteinase strongly increased. However, the pattern and intensity of staining of different collagenous and non-collagenous BM glycoproteins were not modified, as shown by indirect immunofluorescence microscopy. The existence of a direct significant correlation between the proteinuria and the laminin urinary excretion, and between the latter and the urinary neutral proteinase activity suggests that lysosomal proteinase of mononuclear phagocytes may be involved in the damage of the GBM during the course of this experimental glomerulonephritis. [less ▲] Detailed reference viewed: 8 (0 ULg) Dossier. Pour l'essor du mécénat en Belgique francophoneDuchesne, Jean-Patrick ; ; et alin Art&Fact (1983), 2 Detailed reference viewed: 16 (0 ULg) Comparaison des proteines sarcoplasmiques de deux poissons antarctiques, Channichthys rhinoceratus, dépourvu de pigments respiratoires, et Notothenia magellanica, de formule sanguine normaleFeller, Georges ![]() in Bulletin de la Société Royale des Sciences de Liège (1983), 52 Detailed reference viewed: 11 (1 ULg) Electrical and mechanical activity of the cervix in the ewe during pregnancy and parturition.; ; Hanzen, Christian et alin Journal of Reproduction and Fertility (1983), 68 Detailed reference viewed: 9 (1 ULg) A. VAUCHEZ, La sainteté en Occident aux derniers siècles du Moyen AgeGeorge, Philippe ![]() in Moyen Age (Le) (1983) Detailed reference viewed: 11 (0 ULg) Experimental hypertension: early changes in collagen metabolismFoidart, Jean-Michel ; Rorive, Georges ; et alin Revue Médicale de Liège (1983), 38(12), 537-49 Detailed reference viewed: 1 (0 ULg) Utero-placental vascularization in retardation of intra-uterine fetal growth; Foidart, Jean-Michel ; in Archives d'Anatomie et de Cytologie Pathologiques (1983), 31(2), 105-10 Detailed reference viewed: 4 (0 ULg) Différenciation de paramyxovirus aviairesVindevogel, Henri ; Pastoret, Paul-Pierre ; Thiry, Etienne et alin Annales de Médecine Vétérinaire (1983), 127 Detailed reference viewed: 9 (0 ULg) Les cellules Immobilisées. Techniques du Génie BiochimiqueThonart, Philippe ; Paquot, Michel ; et alin Annales de Gembloux (1983), 89 Detailed reference viewed: 13 (2 ULg) Rogier Potier, de l'écriture au styleDuchesne, Jean-Patrick ![]() in Art&Fact (1983), 2 Detailed reference viewed: 13 (0 ULg) La myopathie postanesthésique équine (MPAE); ; et al in Annales de Médecine Vétérinaire (1983), 127 Detailed reference viewed: 26 (4 ULg) Iconographies de saints mosans : Paris, B. Nat. Ms. 412George, Philippe ![]() in Bulletin de la Société Royale Le Vieux-Liège (1983), N° 221-222 Detailed reference viewed: 5 (0 ULg) Emploi du polymère WSR 301 dans les essais en bassin de carènesMarchal, Jean ![]() in Bulletin de l'ATMA (1983) Detailed reference viewed: 6 (0 ULg) Le syndrome d'immunodéficience acquise : espoirs et limites thérapeutiques; ; et al in Médecine et Hygiène (1983), 41 Le SIDA reste une affection mortelle survenant dans certains groupes humains à haut risque qui sont actuellement bien connus. L'agent responsable pourrait être un rétrovirus. L'évolution se caractérise ... [more ▼] Le SIDA reste une affection mortelle survenant dans certains groupes humains à haut risque qui sont actuellement bien connus. L'agent responsable pourrait être un rétrovirus. L'évolution se caractérise par des infections opportunistes graves (P. Carinii, T. Gondii, C. Neoformans) et/ou l'apparition d'un sarcome de Kaposi de haut degré de malignité. Au-del) du traitement des infections et du sarcome de Kaposi, la restauration de l'immunité cellulaire reste l'objectif prinicpal. Dans cette perspective, des essais sont actuellement en cours utilisant l'interféron, les hormones thymiques ou l'interleukine 2. [less ▲] Detailed reference viewed: 27 (1 ULg) Creatine kinase isoenzymes in severe head injury.Hans, Pol ; ; Chapelle, Jean-Paul et alin Journal of Neurosurgery (1983), 58(5), 689-92 Brain-type creatine kinase (CK) isoenzyme (CK-BB) was found in the ventricular cerebrospinal fluid (CSF) and the serum in a series of 35 patients within 13 hours following severe head injury. There was a ... [more ▼] Brain-type creatine kinase (CK) isoenzyme (CK-BB) was found in the ventricular cerebrospinal fluid (CSF) and the serum in a series of 35 patients within 13 hours following severe head injury. There was a good correlation between total CK and CK-BB activities in CSF only. The values found in the CSF appear to be a quantitative index of brain dysfunction at admission, and did not correlate with intracranial pressure activity. High levels of CK-BB in the CSF correlated with a poor outcome, and thus offer a reliable criterion for the assessment of the severity of head injury. [less ▲] Detailed reference viewed: 10 (1 ULg) Les animaux responsables de pollutions de l'environnementNicks, Baudouin ![]() in Bulletin d'information de l'association universitaire pour l'environnement (1983) Detailed reference viewed: 3 (0 ULg) La méthode de l'angle critique: une conception particulière de l'échantillonage appliqué aux inventaires forestiers.Rondeux, Jacques ![]() in Annales de Gembloux (1983), 89(3), 183-200 Detailed reference viewed: 4 (0 ULg) Une analyse hiérarchique de la coordination des déplacements chez des enfants préopératoires; Crahay, Marcel ![]() in Current Psychology of Cognition [=CPC] = Cahiers de Psychologie Cognitive [=CPC] (1983), 3(4), 419-440 Detailed reference viewed: 18 (2 ULg) Etude dendrométrique des ormes (Ulmus glabra HUDS. et Ulmus campestris L.); Palm, Rodolphe ![]() in Bulletin des Recherches Agronomiques de Gembloux (1983), 18(4), 241-256 Detailed reference viewed: 4 (1 ULg) Compte rendu de l'ouvrage de Harrauer Hermann und Pieter J. Sijpesteijn, Medizinische Rezepte und Verwandtes. Textband; - Tafelband. (Mitteilungen aus der Papyrussammlung der Österreichischen Nationalbibliothek [Papyrus Erzherzog Rainer]. Neue Serie. XIII. Folge.) [M.P.E.R., N.S. XIII), Wien, Hollinek, 1981Marganne, Marie-Hélène ![]() in Chronique d'Egypte : Bulletin Périodique de la Fondation Egyptologique Reine Elisabeth (1983), 58 Detailed reference viewed: 7 (2 ULg) Cocurrent downward gas-liquid flow in packed beds. Part 2 : Stochastic model of liquid flowCrine, Michel ; Marchot, Pierre ![]() in International Chemical Engineering (1983), 23 Detailed reference viewed: 5 (2 ULg) Etude dendrométrique du sapin de Douglas (Pseudotsuga menziesii FRANCO); Palm, Rodolphe ![]() in Bulletin des Recherches Agronomiques de Gembloux (1983), 18(1), 25-44 Detailed reference viewed: 4 (0 ULg) Perspectives nouvelles dans la polyarthrite rhumatoïde (P.R.)Van Cauwenberge, Henry ; Krzesinski, Jean-Marie ![]() in Revue Médicale Marseille (1983), 2(7), 135-139 Plus d'un siècle après la description approfondie qu'en a fait Charcot, la polyarthrite rhumatoïde (P.R.L maladie pourtant fr équente. garde une pathogénie obscure. Dès 1940, Waeler mettait en évidence le ... [more ▼] Plus d'un siècle après la description approfondie qu'en a fait Charcot, la polyarthrite rhumatoïde (P.R.L maladie pourtant fr équente. garde une pathogénie obscure. Dès 1940, Waeler mettait en évidence le facteur rhumatoïde, point de départ d'un échaffaudaqe d'hypothèses tentant d'expliquer les désordres immunitaires rencontrés dans cette affection.Par les réactions de Waeler-Rose. ou de latex. on met en évidence, chez beaucoup de patients atteints de P.R.~ un facteur rhumatoïde constitué d'une IgM anti IgG. Ce facteur caractérise, comme on le sait, les P.R. séropositives. Ce facteur garde en clinique une grande importance puisque sa présence en grande quantité assombrit le pronostic par l'apparition plus fréquente de manifestations générales. Par des techniques plus fines (immunofluorescence indirecte notamment). on a en effet constaté que la plupart, si pas toutes les P.R.~ possèdent un facteur rhumatoïde IgG ou IgA anti IgG . Mais comme lïgM anti IgG, l'IgG anti IgG peut aussi se mettre en évidence chez des sujets normaux, surtout âgés. L'interaction facteur rhumatoïde-lgG intervient grandement, avec d'autres complexes immuns circulants, dans le développement de lésions de vascularite. Les nouvelles techniques telles qu'irradiation lymphoïde et aphérèse, visent donc certains points de la pathogénie évoquée dans la P.R. : enlèvement de facteurs solubles contribuant au processus morbide ou/et ablation des cellules impliquées dans la réponse immunitaire anormale. Mais ces méthodes ne sont pas dépourvues de risques, elles sont en outre fort onéreuses. Elles restent néanmoins des armes très efficaces dans des situations graves, dépassées pour la thérapeutique habituelle. Petit à petit, elles nous dévoilent aussi certains volets encore cachés de la P.R., maladie multifactorielle où un trouble immunitaire occupe une place privilégiée mais dont la ou les causes nous échappent encore. [less ▲] Detailed reference viewed: 87 (2 ULg) Espace plastique et espace filmiqueHousen, Jean ![]() in Revue Belge du Cinéma (1983), 5(automne), Detailed reference viewed: 74 (1 ULg) Le régime alimentaire de la chouette effraie, Tyto alba, dans les Pyrénées Orientales. Etude des variations écogéographiquesLibois, Roland ; ; in Revue d'Ecologie (1983), 37 Correspondence analysis is used to study the variations of the diet of the Barn owl in the eastern part of the Pyrenees, and their relationships with the various vegetation zones of the area. Nineteen ... [more ▼] Correspondence analysis is used to study the variations of the diet of the Barn owl in the eastern part of the Pyrenees, and their relationships with the various vegetation zones of the area. Nineteen samples of owl pellets (18561 prey items) were collected, together with information on the altitude, climate, vegetation and land-use of the sites where pellets were gathered. Mus spretus is a typical eumediterranean species. Pitymys pyrenaicus, Microtus arvalis, Clethrionomys glareolus, Sorex "araneus" and S. minutus are conspicuously absent. Pitymys duodecimcostatus, Suncus etruscus and Crocidura suaveolens cannot be considered as "indicator species" of the mediterranean biome. These small mammals take advantage of some man-made environmental changes to enter areas well outsite the limits of the mediterranean bioclimate: e.g. cultivated fields with deep soils for Pitymys and dry-stone walls for Crocidurine shrews. The strong correslation existing between ecoclimatic factors and prey selection emphazises the opportunistic nature of barn owl's predatory behaviour. The use of fossil pellets as an indicator of past environmental cnditions of a given area is amply justified [less ▲] Detailed reference viewed: 80 (1 ULg) Evaluation of host defense mechanisms and improvement after traumaDamas, Pierre ![]() in Acta Anaesthesiologica Belgica (1983), 34(3), 151-153 Detailed reference viewed: 3 (0 ULg) Painful legs and moving toes: démembrement clinique et physiopathologique du syndromeSchoenen, Jean ; Gonce, Michel ; in Acta Neurologica Belgica (1983), 83 Detailed reference viewed: 15 (0 ULg) Endocrine patterns following trenbolone acetate-zeranol and trenbolone acetate-oestradiol implantation in beef cattle; Renaville, Robert ; et alin Journal of Animal Science (1983), 57(supll 1), 334-335 Detailed reference viewed: 16 (2 ULg) L'aide sociale en temps de criseBorn, Michel ![]() in Revue d'Action Sociale (1983), 8(1-2), 3-5 Detailed reference viewed: 5 (0 ULg) L’autofinancement des coopératives de travailleurs et la théorie économiqueDefourny, Jacques ![]() in Annals of Public and Cooperative Economics = Annales de l'Economie Publique, Sociale et Coopérative (1983) Detailed reference viewed: 49 (8 ULg) Solid phase enzypme immunoassay of urokinase using monoclonal antibodies.; Portetelle, Daniel ; et alin Bioscience Reports (1983), 3 Donnees nouvelles sur l'organisation morphologique de la moelle humaine.Schoenen, Jean ![]() in Revue d'Eléctroencephalographie et de Neurophysiologie Clinique (1983), 13(3), 317-9 Detailed reference viewed: 9 (0 ULg) Relative size and myocardial structure of the heart of an Antarctic fish devoid of haemoglobin and myoglobin, Channichthys rhinoceratusFeller, Georges ; ; Goessens, Guy et alin J Zool London (1983), 199 Detailed reference viewed: 7 (1 ULg) Conformational analysis of the calcium-antagonist gallopamil.Brasseur, Robert ; ; in Biochemical Pharmacology (1983), 32(3), 437-40 Conformational analysis of gallopamil was performed in order to gain insight into the molecular determinant of its calcium-antagonistic property. Whereas the neutral form of gallopamil was characterized ... [more ▼] Conformational analysis of gallopamil was performed in order to gain insight into the molecular determinant of its calcium-antagonistic property. Whereas the neutral form of gallopamil was characterized by a single, largely predominant configuration, the protonated form of the drugs yielded several conformers, some of which were characterized by a readily accessible ionized site. The capacity of gallopamil to inhibit ionophore-mediated calcium translocation in a two-phase bulk system was inversely related to the pH of the aqueous phase. These findings indicate that the capacity of gallopamil to interfere with the transport of cations is critically dependent on the availability of a protonated configuration of the drug. [less ▲] Detailed reference viewed: 5 (0 ULg) Intramolecular Dynamics of Molecular Ions.Lorquet, Jean-Claude ; Lorquet, Andrée ; Dehareng, Dominique et alin Bulletin de la Société Chimique Belge (1983), 92(6/7), 609-611 The Fourier transform of an electronic spectrum gives a direct dynamic information on the nuclear motion of a wavepacket on the potential energy surface of the final state reached in the electronic ... [more ▼] The Fourier transform of an electronic spectrum gives a direct dynamic information on the nuclear motion of a wavepacket on the potential energy surface of the final state reached in the electronic transition, at least during the first few molecular vibrations. The method is valid for both adiabatic and non-adiabatic situations. It has proved its usefulness in the study of molecular processes such as Duchinsky effect, fast predissociations and internal conversions. [less ▲] Detailed reference viewed: 28 (4 ULg) Alternatives possibles a la mise en decharge des boues de papeteries. Un exemple: Wiggins Teape.Paquot, Michel ; in Tribune du CEBEDEAU (1983), 36(473), Detailed reference viewed: 4 (1 ULg) The Dissociative Electroionization of Nitrous Oxide. The O+ Dissociation Channel.; Locht, Robert ; in International Journal of Mass Spectrometry and Ion Physics (1983), 46 By electroionization mass spectrometry and ion kinetic energy analysis, the O+ fragment ion formation from N2O has been analyzed. Different appearance energies are measured and interpreted. Between the ... [more ▼] By electroionization mass spectrometry and ion kinetic energy analysis, the O+ fragment ion formation from N2O has been analyzed. Different appearance energies are measured and interpreted. Between the onset at 15.27 eV and 22 eV only two dissociation limits are involved, i.e. O+(4S)+N2(X1Sigma+/g) at 15.29 eV and O+(2D)+N(X1Sigma+/g) at 18.61 eV. In both cases N2(X1Sigma+/g) is produced in its v=0 up to v=8 vibrational levels. Predissociation of ionic and Rydberg states of N2O are the dominant processes. [less ▲] Detailed reference viewed: 21 (0 ULg) ‘Stemmen roepen tegen elkaar in.’ J.M.A. Biesheuvel centripetaal en –fugaalSpinoy, Erik ![]() in R.I.P. Tijdschrift voor literatuur en stijl (1983), 4(1), 17-39 This article is a Bachtinian reading of the narrative prose by Dutch author J.M.A. Biesheuvel, focusing on the tension between centripetal and centrifugal tendencies. Detailed reference viewed: 7 (1 ULg) A method for isolation of intact, translationally active ribonucleic acid; ; et al in DNA (1983), 2(4), 329-35 A method for isolation of large, translationally active RNA species is presented. The procedure involves homogenization of cells or tissues in 5 M guanidine monothiocyanate followed by direct ... [more ▼] A method for isolation of large, translationally active RNA species is presented. The procedure involves homogenization of cells or tissues in 5 M guanidine monothiocyanate followed by direct precipitation of RNA from the guanidinium by 4 M LiCl. Modifications are described for use with tissue culture cells, yeast, tissues, or isolated nuclei. The advantages of the procedure include speed, simplicity, avoidance of an ultracentrifugation, and its applicability to large numbers of small samples. The procedure yields large mRNA precursors up to 10 kb and mRNA species which translate very well. However, small (less than 300 nucleotides) RNA species are recovered with a poor yield. [less ▲] Detailed reference viewed: 87 (0 ULg) LES ARCHIVES SONORES DE LA MEDIATHEQUE PROVINCIALE DE LIEGE - Des sons et des hommesSacré, Robert ![]() in Télé Moustique (1982), (2967), 40-52 Detailed reference viewed: 2 (0 ULg) Penicillin-binding proteins and carboxypeptidase/transpeptidase activities in Proteus vulgaris P18 and its penicillin-induced stable L-forms; Nguyen-Distèche, Martine ; et alin Journal of Bacteriology (1982), 152(3), 1042-1048 The originally penicillin-induced, wall-less stable L-forms of Proteus vulgaris P18, isolated by Tulasne in 1949 and since then cultured in he absence of penicillin, have kept the ability to synthesize ... [more ▼] The originally penicillin-induced, wall-less stable L-forms of Proteus vulgaris P18, isolated by Tulasne in 1949 and since then cultured in he absence of penicillin, have kept the ability to synthesize the seven penicillin-binding proteins and the various DD- and LD-peptidase activities found in the parental bacteria and known to be involved in wall peptidoglycan metabolism. The stable L-forms, however, secrete during growth both the highly penicillin-sensitive, DD-carboxy-peptidase-transpeptidase penicillin-binding protein PBP4 (which in normal bacteria is relatively loosely bound to the plasma membrane) and the penicillin-insensitive LD-carboxypeptidase (which in normal bacteria is located in the periplasmic region). [less ▲] Detailed reference viewed: 4 (0 ULg) The variability of RR Tel; Manfroid, Jean ![]() in The Messenger (1982), 30 Photometric measurements of RR Tel performed at ESO are discussed. RR Tel is a galactic nova which has been associated with a sole outburst, observed in 1944. The photometric observations were made in the ... [more ▼] Photometric measurements of RR Tel performed at ESO are discussed. RR Tel is a galactic nova which has been associated with a sole outburst, observed in 1944. The photometric observations were made in the ubvy system in August 1981, when a strong brightening was detected in V. IUE data subjected to a Fourier analysis indicate that the object has a period within 5 days of 395 days. Measurements of brightening of the J component also yield a period of 390 days. The presence of a Mira variable is considered, noting the supporting evidence from H2O and TiO spectral bands, but equally the lack of IR data until after 1960. It is suggested that data from before 1944 indicate that modulated bursts of mass transfer and accompanying accretion events preceeded the outburst of the underlying binary star, which could be a link between dwarf novae, classical novae, and symbiotic stars. [less ▲] Detailed reference viewed: 4 (0 ULg) Essai de diagnostic externe de processus de changements dans les Petites et Moyennes Entreprises, partie IIICorhay, Albert ; ; in Revue belge des Sciences Commerciales (1982) Detailed reference viewed: 8 (2 ULg) The far-UV spectrum of the low-excitation planetary nebula HD 138403Surdej, Jean ; in Astronomy and Astrophysics (1982), 116 Two high-resolution far-UV spectra of the low-excitation planetary nebula HD 138403 are analyzed which were obtained with the IUE satellite over the wavelength range from 1170 to 2070 A. It is shown that ... [more ▼] Two high-resolution far-UV spectra of the low-excitation planetary nebula HD 138403 are analyzed which were obtained with the IUE satellite over the wavelength range from 1170 to 2070 A. It is shown that the nebula's far-UV spectrum comprises a stellar continuum on which are superimposed a few emission lines, numerous interstellar absorption lines, and various types of P Cygni profiles. Evidence is examined for substantial mass loss from the central nucleus, with terminal velocities of the order of 800 km/s. The observed nebular emissions are used to derive the electron density in the main nebula. The results are taken as supporting the hypothesis that a bipolar structure is expanding around HD 138403 via a selective radiation process involving an edge- or line-locking mechanism or both. [less ▲] Detailed reference viewed: 13 (0 ULg) Rotation-Invariant Optical Processing; Verly, Jacques ; in Journal of the Optical Society of America (1982), 72(12), 1670-1676 Detailed reference viewed: 10 (1 ULg) Transport of aurorally produced N/2D/ by winds in the high latitude thermosphereGérard, Jean-Claude ; in Planetary and Space Science (1982), 30 A time-dependent, two-dimensional model is developed for describing the meridional circulation of thermospheric odd nitrogen species produced in the auroral zone. The model is based on a previous model by ... [more ▼] A time-dependent, two-dimensional model is developed for describing the meridional circulation of thermospheric odd nitrogen species produced in the auroral zone. The model is based on a previous model by Roble and Gary (1979) extended to upper altitude transport of the nitrogen species. Assumptions made include the existence of a steady neutral wind flowing from low to high latitudes, and an initial background due to scattered Lyman-beta and nightglow emissions. The aurora is also assumed as steady, along with a constant ion production. Predictions made using the model are compared with observations with the Atmosphere Explorer C spacecraft and rocket sounding measurements of the 5200 A distribution near the day-side polar cusp. The model requires thermospheric winds of 100-200 m/sec, flowing from day to nightside. Convective velocities near 1000 m/sec were detected by the Explorer spacecraft, as well as a day-to-nightside flow at the cusp. [less ▲] Detailed reference viewed: 8 (0 ULg) The thermospheric heating efficiency under electron precipitation conditions; Gérard, Jean-Claude ![]() in Planetary and Space Science (1982), 30 The results of a study of the altitude distribution of particle heating due to magnetospheric electron penetration into the atmosphere are presented. Updated chemical species data were used in the study ... [more ▼] The results of a study of the altitude distribution of particle heating due to magnetospheric electron penetration into the atmosphere are presented. Updated chemical species data were used in the study, and attention was given to day- and night-side precipitation energy fluxes. The data base on chemical species was obtained from the Atmosphere Explorer C spacecraft and lower altitude observations. A system of 16 continuity equations was employed to formulate a time-dependent auroral model covering reactions and rate coefficients of electrons and O, O2, N2, NNO, and N ions. The heating efficiency of direct dissociation of atmospheric molecules, exothermic chemical reactions involving ions, ground state and metastable neutral species, and cooling of the thermal electrons was calculated. The calculations indicate that over 60 percent of the energy input is transferred to the neutral gas. Particle heating can exceed 1 erg/sq cm per sec. [less ▲] Detailed reference viewed: 13 (0 ULg) Determination of mass-loss rates from the first order moment W1 of unsaturated Cygni line profilesSurdej, Jean ![]() in Astrophysics & Space Science (1982), 88 The relationship between the first order moment and the mass loss rate is investigated within the framework of the Sobolev approximation (1947, 1957, 1958) under various physical and geometrical ... [more ▼] The relationship between the first order moment and the mass loss rate is investigated within the framework of the Sobolev approximation (1947, 1957, 1958) under various physical and geometrical conditions. By assuming that the size of the expanding envelope from which the observed P Cygni profiles arise is large with respect to the central stellar core, a general expression for the n-th order moment is obtained for the case of a point-like source in terms of the usual parameters inherent to Sobolev-type theories. It is then shown how the first result is altered when considering separately the effects due to collisions and rotation, the presence of the underlying photospheric absorption line, the finite size of the central core, and the limb-darkening of the stellar core. It is concluded that the total uncertainty of the mass loss rate determination made with the approach proposed here should be less than 60 percent. [less ▲] Detailed reference viewed: 15 (1 ULg) Essai de diagnostic externe de processus de changements dans les Petites et Moyennes Entreprises, partie IICorhay, Albert ; ; in Revue Belge des Sciences Commerciales (1982) Detailed reference viewed: 3 (0 ULg) Penicillin target enzyme and the antibiotic binding site; ; et al in Science (1982), 218(4571), 479-481 The three-dimensional structure of a penicillin-sensitive D-alanyl-carboxypeptidase-transpeptidase has been determined by x-ray crystallography to a resolution of 2.8 angstroms. The site of binding of the ... [more ▼] The three-dimensional structure of a penicillin-sensitive D-alanyl-carboxypeptidase-transpeptidase has been determined by x-ray crystallography to a resolution of 2.8 angstroms. The site of binding of the beta-lactam antibiotics penicillin and cephalosporin has been located. These findings constitute direct observation of the interaction of beta-lactams with a transpeptidase enzyme and establish the feasibility of defining the molecular stereochemistry of this interaction for purposes of drug design. [less ▲] Detailed reference viewed: 13 (1 ULg) Isolation of the membrane-bound 26 000-Mr penicillin-binding protein of Streptomyces strain K15 in the form of a penicillin-sensitive D-alanyl-D-alanine-cleaving transpeptidaseNguyen-Distèche, Martine ; ; Ghuysen, Jean-Marie ![]() in Biochemical Journal (1982), 207(1), 109-115 The membrane-bound, 26 000-Mr penicillin-binding protein of Streptomyces K15 has been isolated in the form of an effective, penicillin-sensitive D-alanyl-D-alanine-cleaving peptidase exhibiting high ... [more ▼] The membrane-bound, 26 000-Mr penicillin-binding protein of Streptomyces K15 has been isolated in the form of an effective, penicillin-sensitive D-alanyl-D-alanine-cleaving peptidase exhibiting high transpeptidase activity (greater than 95%) and very low carboxy-peptidase activity (less than 5%). The penicillin-binding protein/transpeptidase can be extracted directly from the mycelium with N-cetyl-NNN-trimethylammonium bromide (Cetavlon) and subsequently obtained at 90% purity and with an 8000-fold specific enrichment (when compared with the activity of the isolated membranes) by a two-step procedure involving Sephadex filtration and affinity chromatography on ampicillin-linked CH Sepharose 4B in the presence of detergent. At saturating concentrations of the co-substrates diacetyl-L-Lys-D-Ala-D-Ala and Gly-Gly, the catalytic-centre activity is about 0.3 s-1. [less ▲] Detailed reference viewed: 3 (0 ULg) Collimator Effects in High Resolution X-ray Computed TomographyVerly, Jacques ![]() in IEEE Transactions on Medical Imaging (1982), MI-1(2), 122-136 Detailed reference viewed: 4 (1 ULg) Essai de diagnostic externe de processus de changements dans les Petites et Moyennes Entreprises, partie ICorhay, Albert ; ; in Revue Belge des Sciences Commerciales (1982) Detailed reference viewed: 5 (0 ULg) Is HD 90994 a "Reduction Variable"?; Manfroid, Jean ![]() in Information Bulletin on Variable Stars (1982), 2199 Not Available Detailed reference viewed: 13 (0 ULg) A Note on Two Be Stars; Manfroid, Jean ![]() in Information Bulletin on Variable Stars (1982), 2198 Not Available Detailed reference viewed: 4 (0 ULg) A statistical analysis of the theoretical results obtained for concerted 1,3-dipolar cycloaddition; ; Dive, Georges et alin Journal of Molecular Structure : Theochem (1982), 89(1-2), 147-163 Detailed reference viewed: 5 (1 ULg) Acide cyclohexyl-4 naphtalène-1-propionique; ; Dive, Georges et alin Acta Crystallographica. Section B-Structural Crystallography and Crystal Chemistry (1982), 38(9), 2409-2411 Detailed reference viewed: 11 (1 ULg) Cerebellar macroneurons in microexplant cell culture. Postsynaptic amino acid pharmacology.; Moonen, Gustave ; et alin Brain Research (1982), 281(1), 75-88 Detailed reference viewed: 5 (0 ULg) Calcul et choix du serrage d'une paire de roulements à contact obliqueDebongnie, Jean-François ![]() in Revue Mécanique - M (1982), 28(3), 171-183 The concern of this paper is the behaviour of a system consisting of two angular contact rolling element bearings. The author's aim is to develop rational rules for a proper choice of the preload, as a ... [more ▼] The concern of this paper is the behaviour of a system consisting of two angular contact rolling element bearings. The author's aim is to develop rational rules for a proper choice of the preload, as a function of the desired effect on the life or the stiffness of the bearing arrangement. [less ▲] Detailed reference viewed: 55 (3 ULg) Evaluation of the lipid-drug association constant in model membranes: A monolayer approach; Brasseur, Robert ; et alin Bioelectrochemistry and Bioenergetics (Lausanne, Switzerland) (1982), 9(4), 489-498 A general procedure of evaluation of the lipid-drug association constant in monolayer is presented. Lipids are spread at the air-water interface and the drugs injected into the aqueous subphase ... [more ▼] A general procedure of evaluation of the lipid-drug association constant in monolayer is presented. Lipids are spread at the air-water interface and the drugs injected into the aqueous subphase. Association constant potential and predictions from the Gouy-Chapman theory. Several procedures of calculation are described. [less ▲] Detailed reference viewed: 9 (7 ULg) Cerebellar macroneurons in microexplant cell culture. Methodology, basic electrophysiology, and morphology after horseradisch peroxidase injection.Moonen, Gustave ; ; et alin Brain Research (1982), 281(1), 59-73 Detailed reference viewed: 1 (0 ULg) August 1981 Crisis of V348 Sgr; Houziaux, Léo ; Manfroid, Jean ![]() in Information Bulletin on Variable Stars (1982), 2184 Not Available Detailed reference viewed: 2 (0 ULg) Comparaison between Numerical and Experimental Results in Study of Offshore Structure MovementsMarchal, Jean ; ; et alin Proceeding of the Int. Conf. Washington D.C. (1982) Detailed reference viewed: 8 (1 ULg) A model of energy deposition of energetic electrons and EUV emission in the Jovian and Saturnian atmospheres and implicationsGérard, Jean-Claude ; in Journal of Geophysical Research (1982), 87 A model of the interaction between incident electron precipitation and H2 atmospheres is described. The local degraded primary and secondary electron energy distributions are calculated by using the ... [more ▼] A model of the interaction between incident electron precipitation and H2 atmospheres is described. The local degraded primary and secondary electron energy distributions are calculated by using the continuous slowing down approximation. The altitude distribution of the ionization rate and various H and EUV H2 emissions are calculated for four different incident electron spectra. A total EUV H2 emission efficiency of 10.6 kR/incident erg/sq cm per sec is obtained for a pure H2 atmosphere. Comparison with the Voyager Jupiter observations indicates that an incident energy flux of about 8 ergs/sq cm per sec was present at the time of the encounter if the emission is located in an H2-dominated region. The local thermospheric heating rate was about 4 ergs/sq cm per sec for Jupiter and of the order of 0.1 erg/sq cm per sec for Saturn. A globally averaged atomic hydrogen production rate of about 1 x 10 to the 10th atoms/sq cm per sec is induced by the Jovian auroral electron precipitation, largely exceeding the solar EUV dissociation rate. [less ▲] Detailed reference viewed: 9 (0 ULg) Etude de la mobilité sagittale et frontale du tronc chez des recrues; ; Debouche, Charles et alin Acta Medicinalia Militaria Belgica (1982), 2 Detailed reference viewed: 47 (5 ULg) Effets de trois Alcaloides Extraits du Strychnos usambarensis sur des Cellules Cancereuses en CultureBassleer, Roger ; Gillet, Marie-Claire ; et alin Planta Medica (1982), 45(6), 123-6 The cellular effects of three alkaloids isolated from STRYCHNOS USAMBARENSIS (melinonine F, strychnofoline, 18-19-dihydro-usambarine) are analysed by cytological methods in experimental animal tumours ... [more ▼] The cellular effects of three alkaloids isolated from STRYCHNOS USAMBARENSIS (melinonine F, strychnofoline, 18-19-dihydro-usambarine) are analysed by cytological methods in experimental animal tumours cultivated IN VITRO (B 16 mouse melanoma cells, mouse Ehrlich tumour cells ELT, HW 165 rat hepatoma). Under some experimental conditions, a certain degree of antimitotic activity is demonstrated. [less ▲] Detailed reference viewed: 14 (4 ULg) AU TEMPS OU LA BELGIQUE JAZZAIT - Du " Jazz Pour Tous" à Comblain-la-TourSacré, Robert ![]() in Télé Moustique (1982), (2937), 51-73 Nicolas DOR et Jean Marie PETERKEN, animateurs de JAZZ POUR TOUS à la RTB depuis 1956, créent le Festival de jazz de Comblain-la-Tour en 1959 avec Joe Napoli : ils se souviennent... Detailed reference viewed: 6 (1 ULg) Structure de l'hydrogénonitrate de l'isopropyl-1 {[(pipéridyl-1 amino)-4 pyridyl-3]sulfonyl}-3 urée; ; et al in Acta Crystallographica. Section B-Structural Crystallography and Crystal Chemistry (1982), 38(5), 1495-1500 Detailed reference viewed: 12 (1 ULg) Zeta Potential of Yeast Cells : Application in cell immobilization.Thonart, Philippe ; ; Paquot, Michel ![]() in Enzyme & Microbial Technology (1982), 4 Detailed reference viewed: 15 (2 ULg) Kainic acid sensitivity of mammalian Purkinje cells in monolayer cultures.; ; Moonen, Gustave ![]() in Brain Research (1982), 256(1), 103-108 Detailed reference viewed: 6 (0 ULg) Delta 2- and delta 3-cephalosporins, penicillinate and 6-unsubstituted penems. Intrinsic reactivity and interaction with beta-lactamases and D-alanyl-D-alanine-cleaving serine peptidasesFrère, Jean-Marie ; ; et alin Biochemical Journal (1982), 203(1), 223-234 The intrinsic reactivity of delta 2- and delta 3-deacetoxy-7-phenylacetamidocephalosporanates, penicillanate, unsubstituted, 2-methyl- and 2-phenyl-penems and other beta-lactam antibiotics has been ... [more ▼] The intrinsic reactivity of delta 2- and delta 3-deacetoxy-7-phenylacetamidocephalosporanates, penicillanate, unsubstituted, 2-methyl- and 2-phenyl-penems and other beta-lactam antibiotics has been expressed in terms of the second-order rate constant (M-1.s-1(OH-)) for the hydrolysis of the beta-lactam amide bond by OH- at 37 degrees C. The values thus obtained have been compared with the second-order rate constants (M-1.s-1(enzyme) for the opening of the same beta-lactam amide bond during interaction with the beta-lactamases of Streptomyces albus G and Actinomadura R39 and the D-alanyl-D-alanine-cleaving serine peptidases of Streptomyces R61 and Actinomadura R39. Depending on the cases, the accelerating effect due to enzyme action and expressed by the ratio M-1.s-1(enzyme)/M-1.s-1(OH) varies from less than 2 to more than 1 x 10(6). The primary parameter that governs enzyme action is the goodness of fit of the beta-lactam molecule to the enzyme cavity rather than its intrinsic reactivity. With the D-alanyl-D-alanine-cleaving serine peptidases, the three penems studied form intermediate complexes characterized by very short half lives of 14-100 s, values significantly lower than those exhibited by most beta-lactam compounds. [less ▲] Detailed reference viewed: 7 (0 ULg) L'art de l'emballage de disque en BelgiqueDuchesne, Jean-Patrick ![]() in Cahiers du C.A.C.E.F. (1982) Detailed reference viewed: 10 (0 ULg) Pour une pédagogie du discoursDumortier, Jean-Louis ![]() in Revue de la Direction Générale de l’Organisation des Etudes (1982) Detailed reference viewed: 3 (0 ULg) Les signes prémonitoires des hémopathies malignes; Fillet, Georges ; et alin Revue Médicale de Liège (1982), 37 Detailed reference viewed: 24 (0 ULg) Comparaison du type et de la fréquence relative des principales arythmies cardiaques observées chez les chevaux en fonction de leurs performances en course : une étude radio-télémétriqueLekeux, Pierre ; Henroteaux, Marc ; in Annales de Médecine Vétérinaire (1982), 126 Detailed reference viewed: 14 (3 ULg) Topographical analysis by monoclonal antibodies of BLV-gp51 epitopes involved in viral functions.; Portetelle, Daniel ; et alin Virology (1982), 122 Detailed reference viewed: 13 (0 ULg) In vitro promotion of root formation by apple shoots through darkness effect on endogenous phenols and peroxidases.; Kevers, Claire ; et alin Zeitschrift fur Pflanzenphysiologie (1982), 108(5), Detailed reference viewed: 56 (9 ULg) Relations entre immunogénicité et différenciation des métastases d'un mélanome expérimental chez la souris.Heinen, Ernst ; Beckers, Josiane ; Desaive, Claude et alin Comptes Rendus des Séances de la Société de Biologie et de ses Filiales (1982), 176(2), 223-6 The graft into the footpad of Jackson mice of B16 melanoma cells which are only slightly pigmented, induces the simultaneous appearance of achromatic and well-pigmented metastatics. We have analysed ... [more ▼] The graft into the footpad of Jackson mice of B16 melanoma cells which are only slightly pigmented, induces the simultaneous appearance of achromatic and well-pigmented metastatics. We have analysed histologically both types of metastases from the 8th to the 20th day after the resection of the primary tumor. The percentages of mitoses are higher in the achromatic metastases than in the pigmented ones. Both are infiltrated by lymphocytes and by a small number of macrophages and polymorphonuclears. A statistical analysis demonstrates however that the percentage of lymphocytes is not related to the importance of the metastase pigmentation. The discussion is devoted to the relations between the infiltration by lymphocytes, the immunogenicity and the differentiation of the tumor. [less ▲] Detailed reference viewed: 10 (0 ULg) A New Light on V348 Sgr:; Manfroid, Jean ![]() in Bulletin de l'Association Francaise d'Observateurs d'Etoiles Variables (1982), 21 Not Available Detailed reference viewed: 5 (0 ULg) Homologous and hybrid calcium complexes of A23187 and hypoglycemic sulfonylureas: nuclear magnetic resonance and conformational analysis.; Brasseur, Robert ; et alin Journal of Inorganic Biochemistry (1982), 16(3), 215-25 Hypoglycemic sulfonylureas (e.g., gliclazide) are able to transport calcium across hydrophobic domains. Gliclazide and the ionophore A23187 act synergistically upon calcium transport. One calcium atom is ... [more ▼] Hypoglycemic sulfonylureas (e.g., gliclazide) are able to transport calcium across hydrophobic domains. Gliclazide and the ionophore A23187 act synergistically upon calcium transport. One calcium atom is complexed by either two molecules of sulfonylureas (or A23187) or one molecule each of sulfonylurea and A23187; the existence of such hybrid complexes has been documented by nuclear magnetic resonance. Conformation analysis of the calcium-gliclazide complex suggests close apposition of the toluyl groups in the gliclazide molecules. [less ▲] Detailed reference viewed: 3 (0 ULg) Electronic properties of simple metals, electronegativity scales and alloy formationMagain, Pierre ; in Physica B: Condensed Matter (1982), 112 Detailed reference viewed: 5 (1 ULg) Atlas provisoire des mammifères sauvages de Wallonie: distribution, ecologie, ethologie, conservationLibois, Roland ![]() in Cahiers d'Ethologie (1982), 2(suppl. 1-2), 1-207 Methods, status of the wild mammals, threatened species: hedghog, bagder, otter, pine marten, stone marten, beaver, common dormouse, edible dormouse, hamster, hare, wildboar, red deer, fallow deer ... [more ▼] Methods, status of the wild mammals, threatened species: hedghog, bagder, otter, pine marten, stone marten, beaver, common dormouse, edible dormouse, hamster, hare, wildboar, red deer, fallow deer. Problems: hunting, habitat alteration, pollution... Solutions: better legislation, habitat restoration, education... [less ▲] Detailed reference viewed: 44 (2 ULg) Application de la CAO à l'obtention rapide et précise de devis d'avant-projets de bateauxMarchal, Jean ; ; et alin Bulletin de l'ATMA (1982) Detailed reference viewed: 6 (0 ULg) Iconographies de saints mosans : Bruxelles, BR Ms. 10326George, Philippe ![]() in Bulletin de la Société Royale Le Vieux-Liège (1982), 216 Detailed reference viewed: 4 (0 ULg) Intérêt thérapeutique des techniques de plasmaphérèse; Malaise, Michel ; et alin Revue Médicale de Liège (1982), 37(8), 303-312 Detailed reference viewed: 21 (2 ULg) Lymphome centrocytique-centroblastique ou est-il bon, est-il méchant ?Fillet, Georges ; ; et alin Revue Médicale de Liège (1982) Detailed reference viewed: 91 (1 ULg) Adriamycin inactivates cytochrome c oxidase by exclusion of the enzyme from its cardiolipin essential environment.; Brasseur, Robert ; in Biochemical and Biophysical Research Communications (1982), 104(1), 314-20 Detailed reference viewed: 3 (0 ULg) Piaget et la pédagogie: Une confrontation difficile, mais prometteuseCrahay, Marcel ![]() in Education : tribune libre (1982), 188 Detailed reference viewed: 52 (1 ULg) Cerebellar macroneurons in microexplant cell culture: ultrastructural morphology.; Moonen, Gustave ; et alin Neuroscience (1982), 7(8), 1789-90 Detailed reference viewed: 2 (0 ULg) Single-nucleons potentials in the framework of a relativistic approach of nuclear matter,Jaminon, Martine ![]() in Physics Letters B (1982), 116 Detailed reference viewed: 2 (0 ULg) Foraminifères, Spores et Coraux du Famennien supérieur et du Dinantien du Massif de l'Omolon (Extrème-Orient soviétique).; ; et al in Annales de la Société Géologique de Belgique (1982), 105 Detailed reference viewed: 19 (0 ULg) Effet de l'ozone sur le virus de la rhinotrachéite infectieuse bovine (Bovid herpesvirus 1); Thiry, Etienne ; Pastoret, Paul-Pierre et alin Annales de Médecine Vétérinaire (1982), 126 Detailed reference viewed: 12 (0 ULg) Synthèse du problème de l'optimalisation du rendu des couleurs dans un localEmbrechts, Jean-Jacques ![]() in Lux (1982), 120 Detailed reference viewed: 12 (7 ULg) Effects of L-thiazolidine-4-carboxylic acid (thiaproline) on cancer cells in culture; Gillet, Marie-Claire ; et alin Annales Pharmaceutiques Françaises (1982), 40(4), 385-389 Three animal and experimental cancer cell lines are cultivated in vitro and treated with thiaproline. At relatively high concentrations, a significant inhibition of mitotic activity is noted, especially ... [more ▼] Three animal and experimental cancer cell lines are cultivated in vitro and treated with thiaproline. At relatively high concentrations, a significant inhibition of mitotic activity is noted, especially when cell population density is high (confluence, superposition). The sensitivity of these cell lines to thiaproline is not identical. No necrosis, no morphological alterations and no mitotic anomalies are noted. [less ▲] Detailed reference viewed: 8 (0 ULg) The dendritic organization of the human spinal cord: the motoneurons.Schoenen, Jean ![]() in Journal of Comparative Neurology (The) (1982), 211(3), 226-47 The dendritic organization of motoneurons was analyzed with the Golgi stain and a morphometric method in the immature and adult human spinal cord. Each motoneuronal column was found to be characterized by ... [more ▼] The dendritic organization of motoneurons was analyzed with the Golgi stain and a morphometric method in the immature and adult human spinal cord. Each motoneuronal column was found to be characterized by a specific orientation of dendritic trees and by a distinct pattern of dendritic bundling. Ventromedial motoneurons have a pyramidal dendritic tree with numerous, short longitudinal branches and elongated dorsal branches. The latter form thick bundles oriented toward the ventral gray commissure. Longitudinal dendrites form a narrow-meshed dendritic plexus, containing abundant microbundles. Motoneurons of the ventromedial column have fewer primary dendrites and a lower ramification index than other motoneurons. Central motoneurons are predominantly oriented longitudinally. The meshes of the rostrocaudal dendritic plexus are looser and the microbundles are finer. Most transverse dendrites run laterally and participate in dendritic bundles which penetrate into the ventrolateral funiculus. The rostrocaudal dendritic domain of ventrolateral motoneurons is the largest dendritic domain of all spinal neurons. The longitudinal dendritic network contains fine microbundles and appears wide-meshed. Transverse dendrites form lateral or medial dendritic bundles depending upon the position of their perikaryon. Dorsolateral motoneurons differ from other motoneurons by their multipolar organization with a slight preponderance of dorsoventral dendritic spread. Rudimentary lateral dendrite bundles are restricted to marginal neurons. The longitudinal plexuses of motoneuronal dendrites and the verticotransverse dendrite bundles of the ventromedial column are well developed in the 26-28-week-old fetus. In contrast, the horizontotransverse dendrite bundles of central and ventrolateral motoneurons can only be recognized from 36 weeks on. The possible specific functions of the various types of dendrites bundles are examined and a laminar dendroarchitectonic schema of the human cord is proposed. [less ▲] Detailed reference viewed: 11 (0 ULg) RMN C13 des alcaloïdes des Strychnos : les dérivés de l'usambarine, de la sarpagine et de la mavacurine; Tits, Monique ; Angenot, Luc ![]() in Journal de Pharmacie de Belgique (1982), 37(3), 189-194 13C NMR spectra of seven tertiary and quaternary indole alkaloids are recorded and the signals assigned. The data permit classification and identification of these alkaloids. Moreover the similarity of ... [more ▼] 13C NMR spectra of seven tertiary and quaternary indole alkaloids are recorded and the signals assigned. The data permit classification and identification of these alkaloids. Moreover the similarity of nigritanin and 18,19-dihydrousambarine have been confirmed by this study [less ▲] Detailed reference viewed: 36 (3 ULg) Quelques aspects d'un cycle annuel du zooplancton en baie de Calvi (Corse)Dauby, Patrick ![]() in Annales de la Société Royale Zoologique de Belgique (1982), 112 Detailed reference viewed: 6 (2 ULg) Gedinnian and Siegenian spores stratigraphy in BelgiumSteemans, Philippe ![]() in On Devonian Stratigraphy and Paleontology of the Ardenno-Rhenish Mountains and Related Devonian Matters. Courier Forschungsinstitut Senckenberg (1982), 55 Detailed reference viewed: 4 (1 ULg) |
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