Caractéristiques des bateaux et des canaux adaptés à l'évolution de la navigation intérieure

in Bulletin de l'Association Technique Maritime et Française (1977)

Bilan des recherches théoriques et expérimentales relatives à la navigation intérieure

in Bulletin de l’Association Internationale Permanente des Congrès de Navigation [Bulletin de l'AIPCN] (1977), II(27), 31

Comportement des bateaux poussés lors du passage, du trématage ou du croisement dans un canal rectiligne

in Bulletin de l’Association Internationale Permanente des Congrès de Navigation [Bulletin de l'AIPCN] (1977)

Bovine follitropin: Isolation and characterization of the native hormone and its alpha and ß subunits

in Biochimie (1977), 59

1. A reproducible procedure was developed for the purification of bovine follitropin. 2. The methode involved ammonium sulfate precipitation, ion exchange and adsorption chromatography, concanavaline-A ... [more ▼]

1. A reproducible procedure was developed for the purification of bovine follitropin. 2. The methode involved ammonium sulfate precipitation, ion exchange and adsorption chromatography, concanavaline-A-Sepharose chromatography and gel filtration. 3. A specific radioligand receptor assay was used to monitor each chromatographical step. 4. The potency of highly purified bovine follitropin as measured by Steelman and Pohley bioassay was 62 times the NIH-FSH-B1 standard preparation. 5. Contaminations of bovine follitropin by other glycoprotein hormones such as thyrotropin and lutropin amounted to 3 and 0.45 per cent by weight respectively as measured by specific radioimmunoassays and radioligand receptor assays. 6. The subunits alpha and beta of bovine follitropin were obtained by incubation in acidic urea, the chains being then separated by anion exchange chromatography. The subunits were submitted to complete characterization. The amino terminal residue of the alpha subunit is phenylalanine while a half cystine residue was found at the amino-terminal end of the beta chain. 8. Cross-contamination of the alpha and beta subunit preparations was measured by specific radioimmunoassays and amounted to 0.02 and 0.1 per cent by weight respectively. [less ▲]

The translation kernel in the $n$-dimensional scattering problem

in Journal of Mathematical Physics (1977), 18(11), 2223--2231

Use of the Logic 03 for controlled ventilation in hyperbaric oxygen therapy.

in Acta Anaesthesiologica Belgica (1977), 28(4), 251-9

Nouvelle méthode de détermination de la structure glycéridique

in Revue Française des Corps Gras (1977), 4

Laméthocle tle calcul de la structure glycéridique décrite par DEROANNE esr améliorée en ajustant, par itérations successives, la distribution de VAN DER WAL, non seulement avec les coefficients obtenus ... [more ▼]

Laméthocle tle calcul de la structure glycéridique décrite par DEROANNE esr améliorée en ajustant, par itérations successives, la distribution de VAN DER WAL, non seulement avec les coefficients obtenus après dosage des triglycérides par chromatographie sur chouche mince imprëgnée de nitrate d'argent, mais également ovec les coe.fficients calculés après sëparation des tiglvcérides par chromatographie en phase gazeuse. Un programme en Fortran IV est mis au point. [less ▲]

Thyroid hormonelike actions of 3,3',5'-L-triiodothyronine nad 3,3'-diiodothyronine

in Journal of Clinical Investigation (1977), 60(6), 1230-9

l-Thyroxine is converted to 3,5,3'-l-triiodothyronine (T(3)) as well as to 3,3',5'-l-triiodothyronine (reverse T(3)). One product of further deiodination is 3,3'-diiodothyronine (3,3'T(2)). The serum ... [more ▼]

l-Thyroxine is converted to 3,5,3'-l-triiodothyronine (T(3)) as well as to 3,3',5'-l-triiodothyronine (reverse T(3)). One product of further deiodination is 3,3'-diiodothyronine (3,3'T(2)). The serum levels of reverse T(3) and 3,3'T(2) change considerably in various physiological and disease states. We previously found that reverse T(3) and 3,3'T(2) bind to the solubilized hepatic nuclear "receptors" for thyroid hormones. This led us to study binding and actions of these metabolites in cultured rat pituitary cells in which glucose consumption and growth hormone production are regulated by T(3) and l-thyroxine.Reverse T(3) and 3,3'T(2) stimulated growth hormone production and glucose consumption and inhibited nuclear binding of radioactive T(3). Either metabolite produced maximal effects that equaled those of T(3), and neither inhibited the T(3) response. Further, additive effects were observed when reverse T(3) was combined with submaximal concentrations of T(3).In serum-free and serum-containing media, concentrations of 3,3'T(2) 50- to 70- and 10- to 100-fold greater, respectively, than those of T(3) were required for equivalent stimulations and for inhibition of nuclear binding by T(3). The relative activity differences under the two conditions can be attributed to weaker serum protein binding of 3,3'T(2) than T(3). With cells in serum-free media, reverse T(3) was a less avid competitor than 3,3'T(2) for T(3) binding by the nuclear receptors, and was less potent than 3,3'T(2) (0.001 the potency of T(3)) in inducing growth hormone production or glucose oxidation. In incubations with serum-containing media, reverse T(3) was an ineffective competitor for T(3) binding, and had only 0.1 the inducing potency of 3,3'T(2) (0.001 the potency of T(3)). The weaker activity of reverse T(3) relative to 3,3'T(2) in serum-containing media could be explained by stronger serum binding of reverse T(3) than 3,3'T(2). In addition, after long-term incubation of cells with radioactive reverse T(3), much of the cell-associated radioactivity was recovered as 3,3'T(2).These studies suggest that reverse T(3) and 3,3'T(2) can stimulate thyroid hormone-regulated functions as weak agonists by acting via the same receptors that mediate T(3) actions. Moreover, some of the effects of reverse T(3) may be due to 3,3'T(2) produced by deiodination of reverse T(3). [less ▲]

Heterology and homology between the ribonucleic acid species of plant viruses as evaluated by molecular hybridizations.

in Biochemical Society Transactions (1977), 5(4), 946-947

Purification of bovine leukemia virus gp70 and bovine leukemia virus p24. Detection by radioimmunoassay of antibodies directed against these antigens.

in Burny, Arsène (Ed.) Bovine leukosis: various methods of molecular virology (1977)