La protection fongicide du triticale

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 ▲]

The Enterococcus Hirae R40 Penicillin-Binding Protein 5 and the Methicillin-Resistant Staphylococcus Aureus Penicillin-Binding Protein 2' Are Similar

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 ▲]

JHKLM standard stars in the ESO system

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 ▲]

Unusual solar halos over La Silla

in The Messenger (1991), 66

Not Available

Rotational analysis of the a3Πr-X1Σ+ transition of 69Ga35Cl

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.

Paramétrisation et simulation des réservoirs souterrains, (Discrétisation du domaine, préparation statistique des données, couplages et non linéarité des paramètres)

Doctoral thesis (1991)

Testosterone 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

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 ▲]

Le dépistage prénatal de la trisomie 21 sur sérum maternel. Mise au point

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

Application de la vectocardiographie à l'étude comparative des vecteurs P, QRS et T au cours de la croissance chez des veaux de conformation standard et hyperviandeuse.

Scientific conference (1991, December)

Nicolas DOR , interview pt 5 - La vie dissolue de...Nicolas!

Article for general public (1991)