Showing results 81 to 100 of 162
 Activity and Subcellular Distribution of Protein Kinase Dependent on Adenosine 3': 5'-Monophosphate in Liver from Normal and Adrenalectomized Rats; Martial, Joseph  ; in European Journal of Biochemistry (1976), 66(3), 499-506 We have examined whether glucocorticoids control the activity and (or) the subcellular distribution of protein kinase dependent on cyclic AMP (adenosine 3':5'-monophosphate), since they influence cyclic ... [more ▼] We have examined whether glucocorticoids control the activity and (or) the subcellular distribution of protein kinase dependent on cyclic AMP (adenosine 3':5'-monophosphate), since they influence cyclic-AMP-dependent responses to other hormones. Protein kinase activity was determined in rat liver homogenates and subcellular fractions, nuclear, large granular, microsomal and supernatant obtained by differential sedimentation in 0.25 M sucrose. 63% of the tissue protein kinase activity detected in absence of cyclic AMP reside in the particulate fractions. Upon addition of exogenous cyclic AMP, protein kinase activity is stimulated 1.8, 1.2, 1.2 and 4.5-fold in nuclear, large granular, microsomal and supernatant fractions, respectively. Under these conditions, 66% of tissue activity are found in the supernatant fraction. The activity sensitive to exogenous cyclic AMP resolves into a major (84%) cytosoluble and a minor (16%) nucleomicrosomal component. The latter activity resists elution with isotonic saline and is increased in the presence of Triton X-100. Three groups of rats were studied: control and adrenalectomized with or without cortisol treatment. In whole liver homogenates, both protein kinase activity detected in absence of exogenous cyclic AMP and sensitivity of the enzyme to cyclic AMP were comparable in all groups. Moreover, the distribution patterns of proteins kinase activity amoung the fractions were essentially the same in all groups of animals, whether or not particles had been treated with Triton X-100. Finally, in cell-free experiments, glucocorticoids alone or in combination with their intracellular receptor did not modify protein kinase activity of rat liver. Thus the results reported do not support the possibility that glucocorticoids influence cyclic AMP-dependent protein kinase in rat liver. Yet, this study provides data, not available before, on subcellular distribution of this enzyme in rat liver. [less ▲] Detailed reference viewed: 5 (0 ULg) The rotational Predissociation of HeH+: Energy and Lifetime measurements.Locht, Robert ; ; et alin Chemical Physics (1976), 15 Relative lifetimes and energies above the dissociation limit have been determined for the rotational predissociation of several quasibound levels of the X1Sigma+ state of 4HeH+. In particular the ... [more ▼] Relative lifetimes and energies above the dissociation limit have been determined for the rotational predissociation of several quasibound levels of the X1Sigma+ state of 4HeH+. In particular the lifetimes are very sensitive to the shape of the potential energy curve. These measurements are used to discriminate between two ab initio potential curves which differ by only 0.00004 a.u. (about 1 meV). Using the lifetime data, relative population factors were determined for the observed levels. [less ▲] Detailed reference viewed: 18 (2 ULg)Dissociative Ionization of Carbon Disulphide in the Gas Phase. Heat of Formation of the CS Radical.Hubin-Franskin, Marie-Jeanne ; Locht, Robert ; in Chemical Physics Letters (1976), 37(3), 488-493 Measurements of the appearance potentials and the kinetic energies of S+ and CS+ ions formed by electron impact on carbon disulphide in the gas phase lead us to propose a value as low as 34+/-6 kcal/mole ... [more ▼] Measurements of the appearance potentials and the kinetic energies of S+ and CS+ ions formed by electron impact on carbon disulphide in the gas phase lead us to propose a value as low as 34+/-6 kcal/mole for the heat of formation of the CS radical in its ground electronic state. It is also shown that the predissociation of the A2Piu or X2Pig and the B2Sigmau/+ molecular ion states by a repulsive 4Sigma- state giving rise to S+ ions, observed through metastastable ions study, occur at 13.45 eV and 14.55 eV respectively. [less ▲] Detailed reference viewed: 28 (1 ULg)A new test of Translational Spectroscopy: the Rotational Predissociation of the X1Sigma state of HeH+.; ; et al in Chemical Physics Letters (1976), 40(1), 170-173 We reported the experiment on the accurate measurement of the kinetic energy released during the predissociation of HeH+ ions into the fragments H+ and He. This experiment was carried out on two machines ... [more ▼] We reported the experiment on the accurate measurement of the kinetic energy released during the predissociation of HeH+ ions into the fragments H+ and He. This experiment was carried out on two machines specially designed for this purpose. The new results differ from those of the original experiment and agree now very well with the theoretical predictions. [less ▲] Detailed reference viewed: 16 (4 ULg)The Lion of ÇolaklıköyTunca, Önhan in Anatolian Studies 26 (1976) Detailed reference viewed: 20 (7 ULg)Etude théorique des sollicitations de pontons flottantsMarchal, Jean Book published by Editions LHCN Laboratoires des Constructions Hydrauliques et des Constructions Navales de l'Université de Liège (1976) Detailed reference viewed: 10 (0 ULg)Recherches sur la navigation en sections limitéesMarchal, Jean in Bulletin de l’Association Internationale Permanente des Congrès de Navigation [Bulletin de l'AIPCN] (1976), II(24), Detailed reference viewed: 7 (2 ULg)Utilisation des radiolanthanides dans la détermination du transit gastro-intestinal chez les petits ruminantsThewis, André ; ; Debouche, Charles et alin Annales de Zootechnie (1976), 25(3), 373-385 Les temps de rétention moyens des résidus alimentaires dans l'ensemble du tractus digestif du Mouton, dans le réticulo-rumen et dans le reste du tube digesif sont estimés soit à partir des courbes de ... [more ▼] Les temps de rétention moyens des résidus alimentaires dans l'ensemble du tractus digestif du Mouton, dans le réticulo-rumen et dans le reste du tube digesif sont estimés soit à partir des courbes de concentration fécale d'un radiotraceur non résorbé (144 Ce) soit à partir des courbes d'excrétion cumulée du même traceur. Deux régimes ont été utilisés: farines de manioc et de maïs et paille avec ou sans complément d'urée, d'une part, et foin haché, d'autre part. Les valeurs ainsi obtenues sont vérifiées par une autre technique sur quelques sujets sacrifiés à l'équilibre de marquage du contenu du tube digestif. On montre que les résultats fournis par l'une ou l'autre méthode sont très comparables pourvu que la concentration fécale en traceur soit constante et que le rythme d'excrétion de la matière sèche et du traceur soit régulier. [less ▲] Detailed reference viewed: 6 (1 ULg)Données récentes en gynécologie animale; Ectors, Francis ; Beckers, Jean-François in Annales de Médecine Vétérinaire (1976), 120 Detailed reference viewed: 48 (5 ULg) Pathologic features and mechanisms of hypoxemia in adult respiratory distress syndromeLamy, Maurice ; ; et alin American Review of Respiratory Disease (1976), 114 Detailed reference viewed: 19 (2 ULg)Linguistica belgica: Le souvenir du comte de FraulaDroixhe, Daniel in Historiographia linguistica (1976), 3(2), 261-265 Detailed reference viewed: 25 (9 ULg)Introduction des effets de précontraintes dans l'élément fini de coque de type 18 de SAMCEFDebongnie, Jean-François Report (1976) The eigenfrequencies of a shell containing a liquid are modified by the static pressure of the fluid. This implies the computation of the static stress, its transmission to the dynamic analysis where the ... [more ▼] The eigenfrequencies of a shell containing a liquid are modified by the static pressure of the fluid. This implies the computation of the static stress, its transmission to the dynamic analysis where the pre-stress has to be included in the analysis. A lot of tests have been performed in order to verify the correctness of the approach. [less ▲] Detailed reference viewed: 40 (2 ULg)Etude de la structure des triglycérides de l'huile de palme fractionnée. Evolution de la cristallisation des triglycérides lors du refroidissement de l'huile de palme en vue de son fractionnement par le procédé TirtiauxDeroanne, Claude ; Wathelet, Jean-Paul ; in Revue Française des Corps Gras (1976), 1 Detailed reference viewed: 34 (3 ULg)Caractérisation de l'intersolubilité des glycérides de l'huile de palmeDeroanne, Claude ; ; Wathelet, Jean-Paul in Lebensmittel-Wissenschaft & -Technologie = Food Science & Technology (1976), 9 After complete solidification of palm oil, the component glycerides form mixed cristals by intersolubility. The mixed cristals associated into two cristaline groups with different polymorphic forms. The a ... [more ▼] After complete solidification of palm oil, the component glycerides form mixed cristals by intersolubility. The mixed cristals associated into two cristaline groups with different polymorphic forms. The a and B' forms of palm bil yielded continuous solid solutions characterised by a double phased diagram. [less ▲] Detailed reference viewed: 51 (1 ULg)Exercices de théorie des structuresDebongnie, Jean-François Learning material (1976) Recueil d'exercices donnés aux étudiants suivant le cours de Théorie des Structures du prof. Sander Detailed reference viewed: 409 (7 ULg)The complex structure of the Ca II (H and K) lines in the spectrum of the A0ep star with infrared excess HD 190073. II. Interpretation: the selective effect of radiative forces.Surdej, Jean ; Swings, Jean-Pierre in Astronomy and Astrophysics (1976), 47 Abstract image available at: http://esoads.eso.org/abs/1976A&A....47..121S Detailed reference viewed: 13 (7 ULg)The complex structure of the Ca II (H and K) lines in the spectrum of the AOep star with infrared excess HD190073Surdej, Jean ; Swings, Jean-Pierre in Slettebak, A. (Ed.) IAUS 70: Be and Shell Stars (1976) Detailed reference viewed: 4 (1 ULg)Traitement des eaux usées par adsorption sur charbon actifCrine, Michel ; ; Pirard, Jean-Paul in Tribune du Cebedeau (1976), 29 Detailed reference viewed: 38 (3 ULg)Le calcul des adsorbeurs pour le traitement des eaux usées par les méthodes du génie des réacteurs chimiquesCrine, Michel ; ; Pirard, Jean-Paul in Tribune de l'Eau (La) (1976), 29 Detailed reference viewed: 21 (2 ULg)Apport de la resonance magnetique nucleaire du carbone 13 (RMN13C) a l'etude systematique des glucosides seco-iridoides: confirmation de structure du swertiamarosideCornélis, André ; Chapelle, Jean-Paul in Pharmaceutica Acta Helvetiae (1976), 51(6), 177-80 Detailed reference viewed: 9 (0 ULg) |
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