SAPHO : A prototype expert system to help designing open-air high voltage substations layout.

in Proceedings of the CIRED 1991 conference (1991, May)

The paper describes how to build a big object-oriented software to help designing open-air high voltage substations layout.

Abundances of neutron capture elements in metal-poor dwarfs. I - Yttrium and zirconium

in Astronomy and Astrophysics (1991), 244

The yttrium and zirconium abundances are determined in a sample of 20 metal-poor stars on the basis of high resolution, high SNR spectra. Significant differences between the behaviors of these two ... [more ▼]

The yttrium and zirconium abundances are determined in a sample of 20 metal-poor stars on the basis of high resolution, high SNR spectra. Significant differences between the behaviors of these two neighboring elements are found, zirconium being less deficient than yttrium in Population II stars. Moreover, there is a genuine cosmic scatter in the abundances of these two elements relative to iron, of the order of 20 percent. The scatter is lower when these elements are compared to titanium, which might indicate that a significant fraction of the lighter neutron-capture elements are produced in massive stars. [less ▲]

La définition du produit, premier pas dans la mise en place d'un plan marketing réussi pour la petite et moyenne entreprise débutante

in La Vie au Bureau (1991), 1991(Avril), 47-53

This paper describes and discusses why it's important to elaborate a precise and detailed definition of a product when trying to elaborate a winning marketing plan in an emerging SME

WR 22 is an Eclipsing Binary Star

in Information Bulletin on Variable Stars (1991), 3571

Not Available

The most massive star of the largest H II region in the Small Magellanic Cloud

in Astronomy and Astrophysics (1991), 243

It is shown that the brightest star in the most important H II region of the Small Magellanic Cloud (SMC) is a multiple system. The zero-age main sequence mass of this star drops significantly from the ... [more ▼]

It is shown that the brightest star in the most important H II region of the Small Magellanic Cloud (SMC) is a multiple system. The zero-age main sequence mass of this star drops significantly from the previously estimated value of 130 or 110 solar masses to less than 85 solar masses, while its present mass falls from 113 to 58 solar masses, both due to multiplicity and extinction correction. This is another piece of evidence against the existence of stars more massive than about 100 solar masses in the SMC. It is also shown that the present mass of one of the two known O3 stars in the SMC is significantly smaller than presently believed. [less ▲]

Spraint analysis: is the method reliable for a quantitative study of the diet of the European otter (Lutra lutra) ?

Poster (1991, March)

Seasonal and regional variation of the diet of the roe deer (Capreolus capreolus) in southern Belgium

Poster (1991, March)

Le système immunitaire cutané et le photovieillissement

in Revue Médicale de Liège (1991), 46(3), 158-163

La connaissance du système immunitaire cutané a beaucoup progressé durant les dernières années. Considérée auparavant comme un organe passif de protection, on sait aujourd'hui que la peau est un organe ... [more ▼]

La connaissance du système immunitaire cutané a beaucoup progressé durant les dernières années. Considérée auparavant comme un organe passif de protection, on sait aujourd'hui que la peau est un organe immunocompétent. Le vieillissement cutané et l'exposition à la lumière ultraviolette ont une influence importante sur le système immunitaire cutané. Après une brève actualisation et description des cellules immunocompétentes de l'épiderme et du derme, nous considérerons la modulation du système immunitaire cutané liée au photovieillissement. [less ▲]

Rolling Experiments on a Floating Tidal Surge Barrier

in Annual Meeting of the DPRI, University of Kyoto (1991, February)

Thyrotropin-Secreting Pituitary Adenomas: Report of Seven Cases

in Journal of Clinical Endocrinology and Metabolism (1991), 72(2), 477-83

Seven patients with hyperthyroidism due to a TSH-secreting pituitary macroadenoma have been observed of a total of 800 patients with pituitary tumors over a period of 15 yr. Serum TSH levels varied ... [more ▼]

Seven patients with hyperthyroidism due to a TSH-secreting pituitary macroadenoma have been observed of a total of 800 patients with pituitary tumors over a period of 15 yr. Serum TSH levels varied between 1.1-36.3 mU/L. The serum alpha-subunit level was low in 1 case, while in 4 other cases the concentration was elevated and varied between 3.7-7.8 micrograms/L. Serum TSH beta levels were normal in the 4 cases in which it was determined. Serum GH or PRL levels were elevated in 5 cases. In 1 patient the cosecretion of TSH, GH, and PRL was confirmed by immunocytochemical examination. Serum TSH and alpha-subunit responses to TRH, GnRH, CRF, GRF, dexamethasone, methimazole, T3, and bromocriptine administration were variable when studied. Serum TSH and alpha-subunit circadian rhythms were absent in 1 case and inverted in another. A serum alpha-subunit pulsatility without TSH pulses was observed in 1 patient. Five patients underwent transsphenoidal adenomectomy. Three of 4 patients operated on in our center were cured, but a recurrence of the adenoma was found in 1 of them after 5 yr. The fifth patient was not cured. Treatment with octreotide in 3 patients resulted in normalization of serum TSH, GH, and thyroid hormones levels. Cosecretion of PRL in 1 case and alpha-subunit in 2 cases was also inhibited. Partial tachyphylaxis occurred in 1 patient. In summary, heterogeneity in clinical presentation, hormonal expression, and therapeutic response appears to characterize these TSH-secreting adenomas. [less ▲]