References of "2002"
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See detailBMD and fracture effects of monofluorophosphate (MFP) combined with raloxifene (RLX) as compared to MFP alone in postmenopausal women with low bone mass
Reginster, Jean-Yves ULg; Felsenberg, D.; Gluer, C. C. et al

in Osteoporosis International (2002), 13(S1), 18-19

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See detailThe Dimensional Model : a framework to distinguish spatial relationships
Billen, Roland ULg; Zlatanova, Siyka; Mathonet, Pierre ULg et al

in Richardson, Dianne; Van oosterom, Peter (Eds.) Advances in Spatial Data Handling (2002)

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See detailStudy of the early abortion in reciprocal crosses between Phaseolus vulgaris L. and Phaseolus polyanthus Greenm
Geerts, P.; Toussaint, André ULg; Mergeai, Guy ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2002), 6(2), 109-119

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See detailSwaged bolts: modelling of the installation process and numerical analysis of the mechanical behaviour
Drean, M.; Habraken, Anne ULg; Bouchaïr, A. et al

in Computers & Structures (2002), 80

Swaged bolts are an alternative to high strength bolts in steel structures. To clarify the steps of the installation process, numerical modelling has been carried out. The relevant phenomena are described ... [more ▼]

Swaged bolts are an alternative to high strength bolts in steel structures. To clarify the steps of the installation process, numerical modelling has been carried out. The relevant phenomena are described and evaluated. This numerical calculation accounts for large displacements, large strains, mechanical plasticity and friction contact between the components of swaged bolts. The non-linear finite element code ‘‘Lagamine’’ designed for the simulation of metal forming processes has been used to provide the stress distributions in the components. [less ▲]

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See detailRisk factors for hepatitis C: past, present and future
Delwaide, Jean ULg; Bourgeois, N.; Colle, I. et al

in Acta Gastro-Enterologica Belgica (2002), 65(2), 87-89

Patients at risk for hepatitis C (HCV) are those exposed to a major risk factor (i.e. blood transfusion prior 1990, and intravenous drug abuse), and those exposed to a minor risk factor (sexual, mother-to ... [more ▼]

Patients at risk for hepatitis C (HCV) are those exposed to a major risk factor (i.e. blood transfusion prior 1990, and intravenous drug abuse), and those exposed to a minor risk factor (sexual, mother-to-infant transmission, household contact, nosocomial contamination). The present paper aims to review the current and past modes of transmission of the virus C. [less ▲]

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See detailPurification and characterization of a pregnancy-associated glycoprotein (ovPAG-6) from sheep placenta removed between 66 to 100 days of gestation.
El Amiri, B.; Remy, B.; Melo de Sousa, Noelita ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2002), 6(1), 12-13

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See detailAdult mullerian duct or utricle cyst: clinical significance and therapeutic management of 65 cases.
Coppens, Luc ULg; Bonnet, Pierre ULg; Andrianne, Robert ULg et al

in Journal of Urology (The) (2002), 167(4), 1740-4

PURPOSE: We define guidelines for the exploration and treatment of adult mullerian duct cysts. MATERIALS AND METHODS: From January 1988 through September 1999 a diagnosis of enlarged prostatic utricle was ... [more ▼]

PURPOSE: We define guidelines for the exploration and treatment of adult mullerian duct cysts. MATERIALS AND METHODS: From January 1988 through September 1999 a diagnosis of enlarged prostatic utricle was made in 65 adults based on transrectal ultrasound findings. Echographic criteria to define simple versus complicated cysts were detailed. We reviewed the clinical presentation, diagnostic modalities, indications for invasive procedures and postoperative outcome. RESULTS: The usual clinical presentations were hematospermia in 40% of cases, other ejaculatory disturbances in 20%, recurrent testicular or pelviperineal pain in 33%, lower urinary tract irritation symptoms in 25%, lower urinary tract infection in 18.5%, male infertility in 12% and incidental finding in 18.5%. Cyst dimensions did not influence the indication for invasive procedures, which were performed in only 27 of the 65 patients (41.5%) to treat disabling symptoms in 28% and obstructive infertility in 5%, and investigate complicated cysts on transrectal ultrasound in 6%. These procedures included transperineal or transrectal puncture in 9 patients, simple endoscopic section of the utricle meatus in 12 and large marsupialisation in 6. Complete and sustained cure was noted in half of the patients treated with cyst puncture only, although echographic relapse was the rule. Endoscopic procedures definitely improved or cured 82% of the patients at a mean followup of 51 months, during which neither early nor late complications were noted. CONCLUSIONS: Since almost 60% of adults diagnosed with a mullerian duct cyst did not experience any cyst related symptoms or ejaculatory-fertility impairment, we recommend that investigation and/or treatment should only be done in symptomatic or infertile patients. [less ▲]

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See detailDeviant trajectories at the turning point between adolescence and adulthood
Born, Michel ULg; Gavray, Claire ULg

in Brochu, S. (Ed.) Drugs and crime deviant pathways (2002)

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See detailPlacental GH, IGF-I, IGF-binding protein-1 and leptin during a glucose challenge test in pregnant women : relation with maternal body weight, glucose tolerance, and birth weight
Verhaeghe, J.; Pintiaux, Axelle ULg; Van Herck, E. et al

in Journal of Clinical Endocrinology and Metabolism (2002), 87(6), 2875-2882

The prediction of birth weight may be improved by the measurement of hormones or growth factors in the mother. We measured body weight (BW) and plasma levels of placental GH (PGH), IGF-I, IGF-binding ... [more ▼]

The prediction of birth weight may be improved by the measurement of hormones or growth factors in the mother. We measured body weight (BW) and plasma levels of placental GH (PGH), IGF-I, IGF-binding protein-1 (IGFBP-1), and leptin at the time of the glucose challenge test (GCT) in 289 women, who were pregnant with a single fetus, between 24 and 29 wk gestational age (GA). Delivery occurred 12 +/- 2 (mean +/- SD) wk later. First, we examined which variables regulate these hormonal factors. Multiple regression showed that PGH concentrations were determined by GA at sampling and were negatively related to BW. IGF-I levels were mainly determined by PGH, and also by insulin, BW, and (negatively) age. IGFBP-1 concentrations were negatively determined by BW, insulin, and IGF-I. BW was also a powerful determinant of leptin levels, with insulin as a less robust determinant. Second, we examined the relation to glucose levels. PGH, IGF-I, and IGFBP-1 concentrations were not correlated with post-GCT glucose levels and were comparable in women with a normal or disturbed GCT (glucose >/=7.8 mmol/liter; n = 72). Finally, we examined the relation with birth weight and placental weight. Birth weight, corrected for GA and stratified into percentile groups, and the ponderal index at birth were strongly related to maternal BW, but not to maternal PGH, IGF-I, or IGFBP-1 levels. Neither was maternal leptin related to birth weight, but leptin concentrations were slightly higher in women who delivered obese babies. Placental weight was not related to any of the hormonal factors. This prospective study indicates that the variation in circulating PGH, IGF-I, IGFBP-1, and leptin between 24 and 29 wk of pregnancy is strongly dependent on maternal BW, but is unrelated to glucose tolerance. In addition, the measurement of PGH, IGF-I, IGFBP-1, or leptin at the time of the GCT is not useful clinically to predict birth weight. [less ▲]

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See detailL'orientation du jeune : Quels constats ? Quels cadres ? Quelles interventions
Donnay, Jean; Biémar, Sandrine; Boucenna, S. et al

Learning material (2002)

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See detailDétermination automatique de la taille du pas de temps pour les schémas implicites en dynamique non-linéaire
Noels, Ludovic ULg; Stainier, Laurent ULg; Ponthot, Jean-Philippe ULg et al

in Mécanique & Industries (2002), 3(1), 63-77

Pour les problèmes caractérisés par de fortes non-linéarités, ainsi que des phénomènes d'impacts et de contacts, une stratégie d'intégration à pas de temps variables est particulièrement intéressante. Ces ... [more ▼]

Pour les problèmes caractérisés par de fortes non-linéarités, ainsi que des phénomènes d'impacts et de contacts, une stratégie d'intégration à pas de temps variables est particulièrement intéressante. Ces phénomènes sont par exemple rencontrés lors de l'étude dynamique d'une interaction aube-carter d'un moteur d'avion, le cas le plus critique étant la perte de l'aube. Une stratégie d'intégration implicite à pas de temps constant donne rarement satisfaction du fait qu'il est pratiquement impossible de déterminer une durée de pas qui ne conduise pas à la divergence ou à un coût de calcul prohibitif. Une gestion automatique du pas de temps, qui tient compte de l'histoire récente des accélérations dans le corps considéré, est proposée. En fait, l'algorithme est basé sur la mesure de l'erreur d'intégration des équations d'équilibre. Cela permet d'intégrer correctement les phénomènes transitoires avec un pas de temps très long (en régime) ou très petit (lors de la perte d'aube), en garantissant une bonne précision en un temps de calcul raisonnable. De plus, un algorithme qui décide automatiquement de recalculer ou non, la matrice hessienne est proposé. Cet algorithme permet d'éviter un nombre important de remises à jour de cette matrice, ce qui permet de réduire le coût de calcul tout en assurant la convergence. Enfin, un critère de divergence des itérations est proposé. Afin d'illustrer l'efficacité des algorithmes développés, des simulations numériques sont présentées. Il s'agit aussi bien de problèmes académiques que de problèmes industriels (contacts aubes carter). [less ▲]

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See detailDermo-epidermal stimulation elicited by a salicylic acid derivative: a comparison with salicylic acid and all trans-retinoic acid.
Pierard, Gérald ULg; Leveque, J.-L.; Rougier, A. et al

in European Journal of Dermatology (2002), 12(4), -

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See detailThe potential of the beta-Microprobe, an intracerebral radiosensitive probe, to monitor the [(18)F]MPPF binding in the rat dorsal raphe nucleus.
Zimmer, L.; Pain, F.; Mauger, G. et al

in European Journal of Nuclear Medicine and Molecular Imaging (2002), 29(9), 1237-47

The aim of this study was to demonstrate the ability of a recently developed beta(+)-range sensitive intracerebral probe (beta-Microprobe) to measure the binding kinetics of [(18)F]MPPF, a well-documented ... [more ▼]

The aim of this study was to demonstrate the ability of a recently developed beta(+)-range sensitive intracerebral probe (beta-Microprobe) to measure the binding kinetics of [(18)F]MPPF, a well-documented 5-HT(1A) serotoninergic receptor ligand, in the dorsal raphe nucleus (DRN) of the anaesthetised rat. This midbrain nucleus presents a high concentration of 5-HT(1A) receptors known to be implicated in the effects of antidepressants. The difficulty confronting this study lay in the fact that the dimensions of the DRN are smaller than the detection volume of the beta-Microprobe. In the first part of the study, we studied the feasibility of this measurement from a theoretical point of view by autoradiography and a Monte Carlo simulation. We determined the optimal beta-Microprobe location close to the DRN and verified that this configuration allowed accurate determination of [(18)F]MPPF specific binding in the nucleus. In the second part of our study, we measured the in vivo time-concentration curves of [(18)F]MPPF binding in the DRN in comparison with the cerebellum. The specificity of [(18)F]MPPF binding in the DRN was confirmed by its displacement after non-labelled 5-HT(1A)antagonist injection (MPPF or WAY-100635). Moreover, we verified the feasibility of using beta-Microprobe monitoring and simultaneous validation by microdialysis to study the effect of an increase in extracellular serotonin, induced by fenfluramine injection, on [(18)F]MPPF binding in the DRN. Our theoretical simulations, confirmed by our experimental results, demonstrate the ability of this new device to monitor in vivo the binding of [(18)F]MPPF in the DRN of anaesthetised rodents. [less ▲]

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See detailNumerical modeling of hydro-mechanical fracture behavior
Guiducci, Chiara; Pellegrino, Antonio; Radu, Jean-Pol ULg et al

in Pande, G. N.; Pietruszczak, S. (Eds.) Numerical models in Geomechanics (2002)

A numerical approach for modeling coupled hydro-mechanical fracture behavior is proposed. The movement of fluids through rock fractures is important in many engineering areas of practical interest such as ... [more ▼]

A numerical approach for modeling coupled hydro-mechanical fracture behavior is proposed. The movement of fluids through rock fractures is important in many engineering areas of practical interest such as those ones of petroleum and mining engineering. In that context, one of the most investigated and complex subjects is the effect on well productivity due to changes in hydraulic conductivity both on the matrix rock and on its main fractures. It is well known, that these flow characteristics are strongly controlled by fracture apertures. Recent investigations on the distribution of the apertures in natural fractures suggest that the cubic law can, better than the Darcy law, predict the fluid flux through rough walled fractures as long as the appropriate average fracture aperture is used. A finite element code is developed to predict the influence that the stresses variation in the soil has on the distributed hydraulic conductivity field. The proposed model combines the stochastic cubic law with a non-linear deformation function (hyperbolic) that is suggested to describe the stress-closure/opening curves of the joints and that allows to couple together the hydraulic and the mechanic fracture behavior. The relationships used and the validity of the present model are tested through comparison between experimental data and numerical predictions (Bart 2000) in various boundary and loading conditions. Comparison between the Darcy model governing fluid flow equation and linear stress-closure/opening relation has also been performed showing the differences and the better de-scription given by the proposed new model. [less ▲]

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See detailPulmonary function in the exercising horse
Art, Tatiana ULg; Bayly, W.; Lekeux, Pierre ULg

in Lekeux, Pierre (Ed.) Equine Respiratory Diseases, IVIS Ithaca NY (2002)

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See detailSociologie de la littérature. La question de l'illégitime
Bertrand, Jean-Pierre ULg; Denis, Benoît ULg

in Lieux Littéraires / La Revue (2002), (5),

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