References of "1993"
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See detailSome Principles and Applications of Adaptive Mathematical Morphology for Range Imagery
Verly, Jacques ULg; Delanoy, Richard L.

in Optical Engineering : The Journal of the Society of Photo-Optical Instrumentation Engineers (1993), 32(12), 3295-3306

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See detailState of stress at the Cape Mendocino triple Junction from inversion of focal mechanisms of the 1992 Petrolia, CA earthquake sequenc
Hubert, Aurelia ULg; Schwartz, SY

in EOS (American Geophysical Union abstract) (1993, December), 76(3), 637

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See detailIpriflavone: Pharmacological Properties and Usefulness in Postmenopausal Osteoporosis
Reginster, Jean-Yves ULg

in Bone and Mineral (1993), 23(3), 223-32

Ipriflavone (IP) is an isoflavone derivative available in several countries for investigational and/or therapeutic use. Inhibition of bone resorption was demonstrated in several models, both in vitro and ... [more ▼]

Ipriflavone (IP) is an isoflavone derivative available in several countries for investigational and/or therapeutic use. Inhibition of bone resorption was demonstrated in several models, both in vitro and in vivo for IP and its metabolites. Their mechanisms of action on bone are not yet fully elucidated but some of them are widely accepted. IP does not possess, per se, any estrogenic activity. It appears that IP-related inhibition of bone resorption might be mediated by an indirect effect on osteoclast and related to an inhibition of recruitment and/or differentiation of pre-osteoclast, maybe through a modulation of osteoblast response to PTH. Clinical studies in Paget's disease of bone or primary hyperparathyroidism have confirmed preferential inhibition of bone resorption suggesting a clinical interest in postmenopausal osteoporosis. Preliminary (1 year) results of double blind placebo controlled studies designed in postmenopausal and senile osteoporosis confirm a reduction in bone turnover rate in patients treated with 600 mg/day of IP, resulting in a significant bone-sparing effect both at lumbar and radial levels. All clinical and pharmacological trials confirm a very good tolerance of IP with a frequency of adverse reactions equal to that observed during administration of a placebo. Providing ongoing studies will confirm the actual promising preliminary results, IP seems a very interesting new non hormonal approach for prevention and treatment of postmenopausal and senile osteoporosis. [less ▲]

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See detailMediterranean small mammals and insular syndrome: biometrical study of the long tailes field mouse (Apodemus sylavticus) (Rodentia Muridae) of Corsica
Libois, Roland ULg; Fons, Roger; Bordenave, Dominique

in Bonner Zoologische Beiträge (1993), 44(3-4), 147-163

The presence in Corsica of a field mouse is well known. Several authors have noted some of its morphological peculiarities but it was only recently (1980) that the presence of A. sylvaticus was ... [more ▼]

The presence in Corsica of a field mouse is well known. Several authors have noted some of its morphological peculiarities but it was only recently (1980) that the presence of A. sylvaticus was establblished with certainty. However, this evidence is based on a check of a limited number of individuals originating from a single locality. In order to generalize these observations, we performed o biochemical test on six Corsican mice caught in three distinct localites and a morpho biometrical study of 491 skulls. The results show that A. sylvaticus is spread all over the island and that A. flavicollis is probably absent. No sexual dimorphism was found but strong spatial variations in the cranial measurements were ividenced. There are far less important between the various Corsican sub samples than between the insular and the continenecal mice. The evolutionary and adaptive significance of the increase in size of insular mice is discussed in relation to the theory of island biogeography and to the present knowledge on the history of the mammalian settlement of the island. [less ▲]

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See detailL'enrobage des semences de coton au Burundi à l'aide d'insecticides systémiques pour la maîtrise d'Aphis gossypii Glov.
Carême, C.; Perreaux, D.; Schiffers, Bruno ULg

in Proceedings ANPP - Troisième conférence internationale sur les ravageurs en agriculture (1993, December)

The influence of several cotton seeds dressing has been studied for the control of Aphis gossypii Glover and for the cotton damping-off mainly due to Rhizoctonia solani Kühn. Diverse seeds dressing ... [more ▼]

The influence of several cotton seeds dressing has been studied for the control of Aphis gossypii Glover and for the cotton damping-off mainly due to Rhizoctonia solani Kühn. Diverse seeds dressing techniqu"es showed the superiority of the pelletted delinted seeds compared to the dry dressing of non delinted seeds methodfor the control of those two pests. The experimental results show tnat , for the control of A. gossypii, imidachloprid has a superior residual action as well as a better efficacy than the other active ingredients. [less ▲]

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See detailThe identity card of Attaching/Effacing Escherichia coli (AEEC) from animals
Mainil, Jacques ULg

Scientific conference (1993, December)

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See detailComplement activation during cardiopulmonary bypass in infants and children: Relation to postoperative multiple system organ failure
Seghaye, Marie-Christine ULg; Duchateau, J.; Grabitz, R. G. et al

in Journal of Thoracic and Cardiovascular Surgery (1993), 106(6), 978-987

Twenty-nine children 3 months to 17 years of age undergoing operations for congenital heart disease were included in this prospective study. Complement activation, activation of the plasma contact system ... [more ▼]

Twenty-nine children 3 months to 17 years of age undergoing operations for congenital heart disease were included in this prospective study. Complement activation, activation of the plasma contact system, leukocytes, leukocyte elastase release, and C-reactive protein were studied during and after cardiopulmonary bypass for the first postoperative week and related to multiple system organ failure occurring in eight (27.5 %) of the 29 children. During cardiopulmonary bypass complement activation via the alternative pathway as indicated by significant conversion of C3 (expressed by C3d/C3) and abnormally high C5a values at the end of cardiopulmonary bypass without consumption of C4 was shown in all children. At the end of cardiopulmonary bypass, C3 conversion was significantly higher in the eight patients with multiple system organ failure than in the others (p < 0.05), whereas no difference in C5a level was shown. All children had a significant increase in leukocyte count directly after protamine administration (p < 0.0001) and elastase release during cardiopulmonary bypass that was significantly higher in patients with multiple system organ failure than in those without (p < 0.05). Consumption of prekallikrein as an indicator of activation of the Hageman system was not detectable during cardiopulmonary bypass in any child. After cardiopulmonary bypass, in patients without multiple system organ failure, C3d/C3 decreased and reached preoperative values within the first postoperative week, whereas, in patients with multiple system organ failure, C3d/C3 increased further, reaching a maximal value on the third postoperative day. In comparison with patients without multiple system organ failure, patients with multiple system organ failure showed a severe decrease of C4 (with minimal values on the third postoperative day), suggesting consumption by activation of the classic pathway of the complement system or a hepatic synthesis deficiency. Prekallikrein values were also significantly lower in patients with multiple system organ failure than in the others, with a maximal difference on the third postoperative day (p < 0.005). C-reactive protein was significantly lower in patients with multiple system organ failure than in the others for the first 2 postoperative days (p < 0.05), probably because of severe hepatic failure in patients with multiple system organ failure. This study demonstrates that, in children, cardiopulmonary bypass induces complement activation principally via the alternative pathway. It suggests a relationship between complement activation and multiple system organ failure observed in the postoperative period. Furthermore, it points out the role of multiple system organ failure itself on the C3 conversion and on the synthesis of the markers of the inflammatory response in children after heart operations. [less ▲]

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See detailCalcitonin for Prevention and Treatment of Osteoporosis
Reginster, Jean-Yves ULg

in American Journal of Medicine (1993), 95(5A), 44-47

There appears to be a consensus that 100 IU/day of nasally administered salmon calcitonin may prevent trabecular bone loss during the first year of the menopause. Strong evidence exists that half that ... [more ▼]

There appears to be a consensus that 100 IU/day of nasally administered salmon calcitonin may prevent trabecular bone loss during the first year of the menopause. Strong evidence exists that half that dose may also be sufficient to prevent trabecular bone loss and that higher doses (> or = 200 IU/day) induce a significant increase in spinal bone mineral content. Calcium supplements should be systemically administered when calcitonin is given, particularly at high doses. Rectal calcitonin seems also to be an efficient alternative in prevention of trabecular bone loss. Further studies are required to evaluate the effect of calcitonin in prevention of cortical bone loss. In established osteoporosis calcitonin may prevent further bone loss at trabecular and cortical sites. A similar benefit is obtained following parenteral or nasal administration of the drug. Long-term administration of nasal salmon calcitonin induces a significant dose-dependent gain of bone at the lumbar spine, whereas discontinuous therapy with a ratio of 1:2 or 2:3 between the treatment and nontreatment periods is the best regimen for cortical bone. Epidemiological, retrospective, and prospective studies provide a convergent network of evidence that calcitonin administration in osteoporosis contributes to reduce significantly the frequency of subsequent fractures, both in the spine and in the hip. Finally, in established osteoporosis, nasal calcitonin possesses a potent analgesic effect, reduces the duration of bed confinement, and decreases the number of concomitant analgesic medications. The well-demonstrated effects of nasal calcitonin permit it to be considered as a highly rational solution for the prevention and the treatment of postmenopausal osteoporosis. [less ▲]

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See detailMacromolecular engineering of polylactones and polylactides. 14. A 13C and 27Al NMR study of the effect of γ-butyrolactone on the structure of aluminum isopropoxide in toluene
Ropson, Nathalie; Dubois, Philippe; Jérôme, Robert ULg et al

in Macromolecules (1993), 26(24), 6378-6385

Solutions of Al isopropoxide in toluene have been investigated by C-13 and Al-27 NMR spectroscopy. Since Al(OiPr)3 is currently used as an initiator for the living polymerization of epsilon-caprolactone ... [more ▼]

Solutions of Al isopropoxide in toluene have been investigated by C-13 and Al-27 NMR spectroscopy. Since Al(OiPr)3 is currently used as an initiator for the living polymerization of epsilon-caprolactone, special attention has been paid to the effect of the monomer on the coordinative structure of Al(OiPr3) in toluene. Gamma-butyrolactone (BL) has been chosen as a nonpolymerizable model, representative of epsilon-caprolactone. The NMR spectra have been recorded at various concentrations of gamma-butyrolactone and temperatures. As a rule, Al(OiPr)3 is coordinatively aggregated in toluene in such a way that tetrameric and trimeric species are in equilibrium. Upon the addition of BL, this equilibrium is shifted toward the formation of an octahedric [Al(OiPr)3.3BL] mixed tetramer coexisting with [Al(OiPr)3]4 tetramers, the external tetrahedric Al atoms of which are coordinated with extra BL molecules. In the presence of a large excess of BL, only the mixed tetramer persists, which suggests that the single [Al(OiPr)3.3M] species would be the actual initiator for the ring-opening polymerization of cyclic monomers M, such as epsilon-caprolactone, lactides, glycolide, and cyclic anhydrides. [less ▲]

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See detailATMOS ATLAS-1 MEASUREMENTS OF SULFUR-HEXAFLUORIDE (SF6) IN THE LOWER STRATOSPHERE AND UPPER TROPOSPHERE
Rinsland, C. P.; Gunson, M. R.; Abrams, M. C. et al

in Journal of Geophysical Research (1993), 98(D11), 20491-20494

Vertical profiles of sulfur hexafluoride (SF6) in the lower stratosphere and upper troposphere have been retrieved from 0.01-cm-1 resolution infrared solar occultation spectra recorded by the Atmospheric ... [more ▼]

Vertical profiles of sulfur hexafluoride (SF6) in the lower stratosphere and upper troposphere have been retrieved from 0.01-cm-1 resolution infrared solar occultation spectra recorded by the Atmospheric Trace Molecule Spectroscopy (ATMOS) Fourier transform spectrometer during the ATLAS (Atmospheric Laboratory for Applications and Science) 1 shuttle mission of March 24 to April 2, 1992. Based on measurements of the unresolved absorption by the SF6 nu3 band Q branch at 947.9 cm-1, average SF6 volume mixing ratios and 1-sigma uncertainties of 3.20 +/- 0.54 parts per trillion by volume (pptv; 10(-12) ppv) at 200 mbar (approximately 11.8 km) declining to 2.86 +/- 0.29 pptv at 100 mbar (approximately 16.2 km) and 1.95 +/- 0.50 pptv at 30 mbar (approximately 23.9 km) have been retrieved. The profiles show no obvious dependence with latitude over the range of the measurements (eight occultations spanning 28-degrees-S to 54-degrees-S). Assuming an exponential growth model and applying a correction for the interhemispheric concentration difference, an average SF6 rate of increase of 8.7 +/- 2.2% per year, 2 sigma, between 12 and 18 km has been derived by fitting the present measurements, ATMOS measurements from the April-May 1985 Spacelab 3 mission, and balloon-borne IR measurements obtained in March 1981 and June 1988. [less ▲]

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See detailA new and potent activator of ATP-sensitive K+ channels
Antoine, M. H.; Pirotte, Bernard ULg; De Tullio, Pascal ULg et al

Poster (1993, November 20)

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See detailVie et oeuvre de Guillaume Lekeu
Pirenne, Christophe ULg

Conference given outside the academic context (1993)

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See detailBreast-specific expression of erbB2-LUC reporter genes.
Pasleau, Françoise ULg; Grooteclaes, Madeleine; Berzi, Paulette et al

Conference (1993, November 11)

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See detailSurface concentration of chain ends in polystyrene determined by static secondary ion mass spectroscopy
Affrossman, S.; Hartshorne, M.; Jérôme, Robert ULg et al

in Macromolecules (1993), 26(23), 6251-6254

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See detailL'avenir de la télévision: chaînes généralistes ou thématiques ?
Hermans, Michel ULg

Conference (1993, November 06)

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See detailCitizenship of the European Union-A critical view
Martiniello, Marco ULg

Scientific conference (1993, November 05)

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