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See detailLes convergences culturelles dans les sociétés pluriethniques de K. Fall et al.
Martiniello, Marco ULg

in Recherches Sociologiques (1999), 2

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See detailAn Evolutive Software Environment for Teaching the Finite Element Method in Electromagnetism
Dular, Patrick ULg; Geuzaine, Christophe ULg; Genon, André ULg et al

in IEEE Transactions on Magnetics (1999), 35(3), 1682--1685

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See detailObzor verkhnego paleolita Moldavii
Otte, Marcel ULg; Noiret, Pierre ULg; López Bayón, Ignacio

in Stratum Plus (1999), 1

The existing in Moldova Aurignacian industries of the lamellar type are represented by the stone collections of two kinds: with leaf-shaped points and backed points with a concave edge. Together with this ... [more ▼]

The existing in Moldova Aurignacian industries of the lamellar type are represented by the stone collections of two kinds: with leaf-shaped points and backed points with a concave edge. Together with this the Corpach IV industry which includes backed points (segments) must have been related to Gravette. Other industries should not be considered separately and apparently can be grouped under the title "industries de type Paléolithique supérieur ancien à pointes foliacées". They are supposed to spring from the Middle Palaeolithic industries with leaf-shaped pieces (from Micoquian of Central Europe), that were further developed in the Aurignacian direction. If the Aurignacian of Moldova has evidently a foreign origin, then the Gravette traditions go back to some related centers. It is reflected in the compatibilty of backed pieces and leaf-shaped points in one and the same industry, dated back to the early stage of the Upper Palaeolithic. It is clearly seen in the collections of lower layers of Molodova V where homogeneousness of the complex is evident starting with the tenth layer. The appearance of some new types of tools (for instance, shouldered points) in the upper layers of this site does not fail the general stability and the cultural originality of the industry. [less ▲]

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See detailNear infrared spectroscopy in large animals: optical pathlengh and influence of hair covering and epidemal pigmentation
Pringle, J.; Roberts, C.; Kohl, M. et al

in Veterinary Journal (1999), 158

The effects of epidermal pigmentation and hair covering on the relative transparency of various animal tissues to near infrared (NIR) light were examined, and the pathlengths of NIR light through tissues ... [more ▼]

The effects of epidermal pigmentation and hair covering on the relative transparency of various animal tissues to near infrared (NIR) light were examined, and the pathlengths of NIR light through tissues at four wavelengths in the NIR range were subsequently determined. Black hair covering and black or dark-coloured hooves prevented NIR light from penetration sufficient for conduction of pathlength or NIR spectroscopy measurements. Non-pigmented hair covering of the head did not appear to be a barrier to successful NIR light transmission. Tissues sufficiently transparent to NIR light had the differential pathlength factor (DPF, i.e. the ratio of the observed light pathlength and the geometric light source-detector separation) of NIR light determined by intensity modulated spectroscopy at the wavelengths 744, 806, 834 and 860 nm. Horse gluteal muscles had DPFs of 6.2, 6.2, 6.0, and 5.6, whereas forelimb muscles had DPF of 4.7, 4.4, 4.5 and 3.9 at the respective wavelengths. Sheep heads had DPF of 7.2 +/- 0.3, 5.8 +/- 0.5, 5.5 +/- 0.4 and 4.4 +/- 0.6 (+/- SEM) for the above respective wavelengths, of which the pathlengths all differed significantly from the other, except for between 806 and 834 nm, and 834 and 860 nm. The DPF of horse hooves were 4.8 +/- 0.1, 4.8 +/- 0.1, 4.7 +/- 0.1 and 4.4 +/- 0.1 (SEM) for the above noted wavelengths, of which the pathlength at 744 and 806 nm differed from the pathlength at 860 nm (P>0.05). These results show that NIRS is possible through lighter pigmented hair and epidermal tissues, and provide DPFs of horse feet and muscle and the sheep head that enables quantitative NIRS in these species. [less ▲]

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See detailBreeding for "low-gossypol seed and high-gossypol plants" in upland cotton. Analysis of tri-species hybrids and backcross progenies using AFLPs and mapped RFLPs.
Vroh Bi, I.javascript:void(0); Maquet, A.; Baudoin, Jean-Pierre ULg et al

in Theoretical and Applied Genetics (1999), 99(7-8),

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See detailDeactivation mechanisms and regeneration of a bimetallic hydrodechlorination catalyst
Heinrichs, Benoît ULg; Noville, Francis ULg; Schoebrechts, Jean-Paul et al

in Studies in Surface Science and Catalysis (1999), 126

The temporal evolution of the activity and selectivity of a 1.9%Pd-3.7%Ag/SiO2 catalyst during selective hydrodechlorination of 1,2-dichloroethane into ethylene is examined. A comparison between the ... [more ▼]

The temporal evolution of the activity and selectivity of a 1.9%Pd-3.7%Ag/SiO2 catalyst during selective hydrodechlorination of 1,2-dichloroethane into ethylene is examined. A comparison between the physico-chemical properties of the fresh catalyst and of the deactivated one suggests a deactivation mechanism by poisoning or coking of Ag sites at the surface of the active Pd-Ag particles. A regeneration treatment is proposed which allows to restore the initial properties of the fresh catalyst. [less ▲]

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See detailPatterns of seasonal and interannual changes of surface chlorophyll concentration in the Black Sea revealed from the remote sensed data.
Nezlin, Nikolay Pavlovich; Kostianoy, Andrey G.; Grégoire, Marilaure ULg

in Remote Sensing of Environment (1999), 69

Several years of CZCS-measured surface pigment’s ecosystems (e.g., Shushkina et al., 1995; Vinogradov et concentrations in the Black Sea are analyzed to appraise al., 1995; 1996a,b; Nihoul et al., 1998 ... [more ▼]

Several years of CZCS-measured surface pigment’s ecosystems (e.g., Shushkina et al., 1995; Vinogradov et concentrations in the Black Sea are analyzed to appraise al., 1995; 1996a,b; Nihoul et al., 1998). The analysis of the seasonal and year-to-year fluctuations of phytoplank- the images of the ocean color collected with the help of ton biomass and understand the causes of these fluctua- remote sensing seems to be one of the most productive tions in terms of the Black Sea’s general dynamics. The methods of estimation the general patterns of temporal pattern of seasonal variations is typical for subtropical and spatial variations of plant pigment concentration in rather than temperate regions. The range of the absolute surface layer of sea water. value of plant pigment surface concentration measured The chlorophyll concentrations measured by remote by remote sensing does not differ greatly from the values sensing methods are known to be the subject of serious measured by direct methods. The pattern of year-to-year discrepancies as compared with in situ measurements variations seems to correlate with cyclic oscillations of (e.g., Chavez, 1995; Martin and Perry, 1994; Mitchell, winter air temperature. In western shallow regions it is 1992; Nihoul et al., 1998). However, these observations also correlated with the Danube discharge intensity. are rather regular and numerous; thus they are worth at- More intensive winter–spring blooms and a slightly lower tention for the analysis of the variations of the Black level of pigment concentration during warm season are Sea’s ecosystem. typical for years of with a mild winter. The causes of The Coastal Zone Color Scanner (CZCS) was develthese regularities seem to be the peculiarities of hydrolog- oped by NASA. It was launched on the Nimbus-7 satelical and meteorological regimes of the Black Sea. The in- lite in October 1978. During its 7.5 year lifetime (Octotensity of winter–spring bloom of phytoplankton appears ber 1978–June 1986), the CZCS acquired nearly 68,000 to depend on hydrological mechanism (i.e., the intensity images, each covering up to 2 million square kilometers of water mixing during winter period due to thermic con- of ocean surface. The Nimbus Project Office in collabovection and wind mixing) rather than the illumination in- ration with the National Aeronautics and Space Administensity. [less ▲]

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See detailQuantitative determination of haptoglobin (HAP) in human and bovine sera by capillary zone electrophoresis (CZE).
Pirlot, Alain ULg; Janssens, J.; Skinner, G. et al

in Veterinary research (1999), 30(5), 483-93

This study describes an original assay for serum haptoglobin determination by measuring the capacity of human haptoglobin (hHAP) and bovine haptoglobin (bHAP) to bind haemoglobin (Hb) as established by ... [more ▼]

This study describes an original assay for serum haptoglobin determination by measuring the capacity of human haptoglobin (hHAP) and bovine haptoglobin (bHAP) to bind haemoglobin (Hb) as established by capillary zone electrophoresis (CZE). This method involves the addition of Hb in excess to the serum and the separation of the HAP-Hb complexes from free haemoglobin by CZE. Protein migration was recorded at a wavelength of 415 nm which reveals Hb alone (free or bound), and the concentration of HAP was indirectly estimated by measuring bound Hb. Different CZE conditions and the peak migration time of Hb from various species (human, equine, bovine, canine) were investigated. The electrophoretic separation of free human Hb (hHb) in excess and the hHAP-hHb complex was fully achieved by CZE, allowing a quantitative determination of hHAP. However, bovine haemoglobin (bHb) bound to bHAP and free bHb were poorly separated under the same conditions. The best detachment between bHAP-Hb complexes and free Hb was only attained in the bovine sample by use of canine haemoglobin (cHb). CZE assays performed with cHb gave very close values to those of a classic photometric method which measured the peroxidase activity of the haptoglobin-cyanmethaemoglobin complexes (y = 1.0168x - 0.072; r2 = 0.97). CZE assay was fast (< 10 min), inexpensive, did not require the use of a specific antibody and was reproducible (coefficient of variation, CV 3.6%). [less ▲]

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See detailLes chemins d'exploitation, ces méconnus
Vanbrabant, Bernard ULg

in Actualités du Droit (1999)

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See detailLes mélanomes cutanés, un spectre de cancers émergents chez la femme en région wallonne
Pierard-Franchimont, Claudine ULg; Arrese Estrada, Jorge ULg; Cornil, F. et al

in Revue Médicale de Liège (1999), 54(5), 495-499

The Mosan Study Group of Pigmented Neoplasms was founded about 15 years ago. It has collected more than 20.000 cutaneous malignancies including melanoms and basal and squamous cell carcinomas. The ... [more ▼]

The Mosan Study Group of Pigmented Neoplasms was founded about 15 years ago. It has collected more than 20.000 cutaneous malignancies including melanoms and basal and squamous cell carcinomas. The incidence of these cancers in on the rise in Wallonia. In particular, malignant melanoms represent a spectrum of emerging cancers characterized by a proteiform biological outcome. They mostly affect young women. The major risk factor appears to be iterative and unwise ultraviolet exposures. The prevention of malenomas is basically founded on such a dogma and accordingly relies on sunscreens. However, controversies about their beneficial effects are rife and fueled by axiomas and contradictory sophisms. At the exception of surgery, the therapeutic options for the diverse types of melanomas do not yet fulfill the scope of evidence-based medicine. [less ▲]

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See detail89 rue de Rome. Le rituel des “Mardis” mallarméens
Durand, Pascal ULg

in Art&Fact (1999), 18

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See detailDu logement ouvrier au logement social
Frankignoulle, Pierre ULg

in Les Cahiers de l'Urbanisme (1999), 25-26

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See detailPyrométamorphisme induit par la gézéification souterraine de niveaux charbonneux du Westphalien dans le Bassin de Mons (Belgique)
Nzali, Timothée; Duchesne, Jean-Clair ULg; Jacquemin, Christiane et al

in Geologica Belgica (1999), 2(3-4), 221-234

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See detailHypo- et hypertension intracrâniennes bénignes
DELVAUX, Valérie ULg; DIOH, Alioune ULg; Schoenen, Jean ULg

in Ahead in neurology (1999), 3(1), 10-15

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See detailCardiorespiratory measurements and indices of oxidative stress in exercising COPD horses
Art, Tatiana ULg; Kirschvink, Nathalie; Smith, Nicola et al

in Equine Veterinary Journal. Supplement (1999), 30

The effect of a COPD crisis on arterial blood gases, heart rate, lactate and indices of oxidative stress were investigated before, during and 1 h after a 'run up to fatigue' in 6 COPD horses. They were ... [more ▼]

The effect of a COPD crisis on arterial blood gases, heart rate, lactate and indices of oxidative stress were investigated before, during and 1 h after a 'run up to fatigue' in 6 COPD horses. They were investigated twice, randomly: once in acute crisis (C) and once in clinical remission (R). Arterial and mixed venous blood samples were collected and analysed for partial pressures in O2 and CO2. The mixed venous blood was also analysed for plasma lactate (LA) and packed cell volume (PCV), as well as for indices of oxidative stress, i.e. reduced glutathione, glutathione disulphide, glutathione redox ratio (GRR) and lipid hydroperoxides (LPH). The exercise test was an effort of increasing intensity on a treadmill at 0% slope, which was stopped when the horses showed signs of exhaustion. Their performance was evaluated by the number of steps and the running time in the last step. Heart rate was monitored continuously during the test. Blood sampling was performed before, just after and 1 h after the end of the test. The COPD crisis significantly reduced the time to fatigue. However, despite the fact that the exercise intensity and length were lower, peak HR and peak LA were similar in C and R, while arterial hypoxaemia and hypercapnia, and PCV were significantly higher in C, indicating a higher physiological stress in this condition. By contrast, the oxidative stress seemed to be higher in R than in C as suggested by the fact that, 1 h after exercise, GRR and LPH were significantly increased with regards to their pre-exercise values in R and not in C. The fact that exercise did not induce an oxidative stress in C could be partly related to (1) the lower exercise intensity reached by the horses, and (2) to the more severe hypoxaemia experienced in this condition. In conclusion, COPD horses in acute crisis show a significant decrease in performance. The reasons for this exercise intolerance remain unclear, but do not appear to be related to any increase of the oxidative stress in C. [less ▲]

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See detailCyanobacterial sequences retrieved directly from the Great Sippewissett Salt Marsh, MA, USA
Dillon, Jesse; Wilmotte, Annick ULg

in Bulletin de l'Institut Océanographique. Numéro spécial (1999), 19

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See detailL'opposition à mariage doit être confinée dans des limites strictes. Note sous Civ. Bruxelles, 24 septembre 1997
Genicot, Gilles ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (1999)

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See detailEletriptan: a viewpoint
Schoenen, Jean ULg

in CNS Drugs (1999), 12(4), 334-335

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See detailLa démocratie et le lieu vide du pouvoir
Delruelle, Edouard ULg

in Réseaux : Revue Interdisciplinaire de Philosophie Morale et Politique (1999), 85-87

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See detailA Basis for Using Fire Modeling with 1-D Thermal Analyses of Partitions to Simulate 2-D and 3-D Structural Performance in Real Fires
Cooper, Len; Franssen, Jean-Marc ULg

in Fire Safety Journal (1999), 33

A basis is presented for identifying partition design for which: 1) the use of one-dimensional thermal analysis in the fire modeling part of the problem would lead to reliable simulations of the fire ... [more ▼]

A basis is presented for identifying partition design for which: 1) the use of one-dimensional thermal analysis in the fire modeling part of the problem would lead to reliable simulations of the fire environment, and 2) the resulting simulations can be used to provide the necessary boundary conditions input to solve the thermal/structural part of the problem, using two- or three-dimensional analyses, as required. [less ▲]

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See detailLe projet TEEODE
Denis, Brigitte ULg; Detroz, Pascal ULg

in Instruzione a distanza (1999), 11(15), 5-9

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See detailL'enseignement à distance : quelques exemples européens
Denis, Brigitte ULg; Detroz, Pascal ULg

in Instruzione a distanza (1999), 11(15), 10-45

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See detailTreatment of osteoporosis : where are we and where are we going to
Reginster, Jean-Yves ULg

in Morphologie : Bulletin de l'Association des Anatomistes (1999), 83(261), 41-5

In the past years, there has been a multiplication of drugs identified as candidates for use in the prevention or the treatment of osteoporosis. When treating established osteoporosis, the objective is to ... [more ▼]

In the past years, there has been a multiplication of drugs identified as candidates for use in the prevention or the treatment of osteoporosis. When treating established osteoporosis, the objective is to prevent further skeletal deterioration, improve bone mass and/or bone microarchitecture to provide a documented reduction of the risk of vertebral and/or peripheral fractures. Calcium and vitamin D have been shown to be particularly efficient in elderly patients, mainly to prevent non-vertebral fractures. By inhibiting osteoclastic activity, calcitonin improves bone mineral density at all sites. Preliminary results suggest that it might also decrease vertebral fracture rates. Bisphosphonates have been investigated for 20 years in the treatment of osteoporosis. Alendronate was shown to reduce spinal and extravertebral fractures. New formulations of fluoride, like monofluorophosphate appear to be particularly beneficial in women with mild to moderate osteoporosis. Several new compounds, including parathormone, strontium salts, ipriflavone or others are currently developed and subject to large investigational programs to demonstrate their ability to reduce fracture. [less ▲]

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See detailCompétences et savoirs terminaux en géographie. Réflexions et propositions.
Merenne-Schoumaker, Bernadette ULg

in Cahiers de Géographie du Quebec (1999), 43(120), 437-449

On the occasion of the research projects initiated by the French Community of Belgium (Communauté Française de Belgique) as an application of its decree «Missions» (24.7.1997), this article develops some ... [more ▼]

On the occasion of the research projects initiated by the French Community of Belgium (Communauté Française de Belgique) as an application of its decree «Missions» (24.7.1997), this article develops some reflections and propositions concerning the geography courses during the last four years of the general and technological education. They are based on the notion of competence as well as on the definition of the necessary final competences in geography, which permits a new focusing of the learning procedures and a better organisation, in view of the objectives to attain. Moreover, the article tries to identify the geographical knowledge that is considered as necessary for the application of these competences. In fact, this one has been classified in three groups, each one concerning respectively : spatial references, keys for the study of the territorial organisations and study of particular themes. [less ▲]

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See detailFermi motion and quark off-shellness in elastic vector- meson production
Royen, Isabelle; Cudell, Jean-René ULg

in Nuclear Physics B (1999), B545

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See detailIntérêt clinique de la tomographie à émission de positons dans la détection et le bilan d'extension des lymphomes non Hodgkiniens de malignité intermédiaire ou élevée
Najjar, Fadi; Jerusalem, Guy ULg; Paulus, Patrick et al

in Médecine Nucléaire : Imagerie Fonctionnelle et Métabolique (1999), 23

Accurate staging of non-Hodkin's lymphoma (NHL) is important for treatment management. We studied 53 patients (40 patients at initial diagnosis and 13 patients at disease recurrence) with ... [more ▼]

Accurate staging of non-Hodkin's lymphoma (NHL) is important for treatment management. We studied 53 patients (40 patients at initial diagnosis and 13 patients at disease recurrence) with histopathologically proven aggressive NHL to assess the value of whole-body FDG positron emission tomography (PET) as an imaging modality for staging and restaging NHL. All patients in this comparative analysis were submitted to clinical examination ; computed tomography (CT) and whole-body PET studies before starting the treatment. Results : whole-body FDG-PET seems to be more sensitive than clinical examination and CT imaging for detection of lymph node regions infiltrated by NHL : there were 98 abnormal peripheral lymph node regions senn by FDG-PET : 59 observed by clinical examination and 39 clinically undetected. The clinical examination showed 9 additional nodal lesions not seen by PET. Of 77 thoracic and abdominopelvic trated by CT. The CT studies showed 5 additional nodal lesions. Extranodal lymphomatous localisations in the liver (n=5), spleen (n=14), lungs (n=8), pleura (n=9), digestive tract (n=4), pelvis (n=2) and other sites (n=9) were identified by PET. Bone marrow infiltration demonstrated by PET was confirmed by biopsy in 6/10 patients, however known medullary invasion was not seen by PET imaging in 5 patients. Conclusion : whole-body FDG-PET without attenuation correction is an efficient, non-invasive method for staging and restaging aggressive NHL but marrow biopsy remains to be performed in addition to PET. [less ▲]

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See detailLa diabete de type 2: approaches diagnostiques, objectifs glycemiques et strategies therapeutiques.
Scheen, André ULg; Paquot, Nicolas ULg

in Revue Médicale de Liège (1999), 54(8), 659-66

Type 2 diabetes is a prevalent disease, with high morbidity and mortality rates, which is usually managed by general practitioners. We will discuss the new diagnostic approaches, the glycaemic goals and ... [more ▼]

Type 2 diabetes is a prevalent disease, with high morbidity and mortality rates, which is usually managed by general practitioners. We will discuss the new diagnostic approaches, the glycaemic goals and the therapeutic strategies which may contribute to improve both adequate management and prognosis of diabetic patients with type 2 diabetes. As far as possible, the management should be both individualized and integrated, not only focused on blood glucose control but also on the correction of other vascular risk factors frequently associated with diabetes (mainly arterial hypertension and dyslipidaemias). Obviously, the reduction of the incidence and severity of microangiopathy and macroangiopathy diabetic complications would require a tight collaboration between general practitioners and specialized physicians. [less ▲]

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See detailChanges in mediobasal hypothalamic gonadotropin-releasing hormone messenger ribonucleic acid levels induced by mating or ovariectomy in a reflex ovulator, the ferret.
Bakker, Julie ULg; Rubin, B. S.; Baum, M. J.

in Endocrinology (1999), 140(2), 595-602

The ferret is a reflex-ovulating species in which receipt of an intromission induces a prolonged (+/- 12 h) preovulatory LH surge in the estrous female. This LH surge is probably stimulated by a large ... [more ▼]

The ferret is a reflex-ovulating species in which receipt of an intromission induces a prolonged (+/- 12 h) preovulatory LH surge in the estrous female. This LH surge is probably stimulated by a large release of GnRH from the mediobasal hypothalamus (MBH). In Exp 1 we asked whether GnRH messenger RNA (mRNA) levels increase in response to mating so as to replenish the MBH GnRH stores needed to sustain the preovulatory LH surge. Estrous females were killed 0, 0.25, 0.5, 1, 3, 6, 14, or 24 h after the onset of a 10-min intromission from a male. Coronal brain sections ranging from the rostral preoptic area caudally to the posterior hypothalamus were processed for in situ hybridization using a 35S-labeled oligoprobe complementary to the human GnRH-coding region. We found no evidence of increased MBH GnRH mRNA levels during the ferret's mating-induced preovulatory LH surge. Instead, the number of GnRH mRNA-expressing cells dropped significantly in the arcuate region beginning 6 h after onset of intromission and remained low thereafter. Furthermore, cellular GnRH mRNA levels decreased in the arcuate region toward the end of the preovulatory LH surge. In Exp 2 we asked whether ovarian hormones regulate MBH GnRH mRNA levels in the female ferret. Ovariectomy of estrous females significantly reduced the number of GnRH mRNA-expressing cells in the arcuate region. This decrease was probably not due to the absence of circulating estradiol. Gonadally intact anestrous females had levels of MBH GnRH mRNA similar to those in estrous females even though plasma estradiol levels were equally low in anestrous females and ovariectomized females. Ovarian hormones other than estradiol may stimulate MBH GnRH mRNA levels in anestrous and estrous females. [less ▲]

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See detailL'etude clinique du mois. Prevention des accidents vasculaires cerebraux chez les patients avec fibrillation auriculaire.
Scheen, André ULg

in Revue Médicale de Liège (1999), 54(6), 561-3

A recent analysis of the literature, published in the 19 May issue of the JAMA, once again demonstrates the efficacy of warfarin, and its superiority on aspirin, in preventing stroke in patients with ... [more ▼]

A recent analysis of the literature, published in the 19 May issue of the JAMA, once again demonstrates the efficacy of warfarin, and its superiority on aspirin, in preventing stroke in patients with atrial fibrillation, at least in subjects at highest risk. However, a feasibility study, published in the 15 May issue of the British Medical Journal, points to the difficulties of implementing guidelines from evidence-based medicine in general practice, essentially because of the reluctance of the physician and/or the patient when the constraints, risks and even advantages of antithrombotic treatment are taken into account. [less ▲]

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See detailRole of the cholinergic pathway in mediating platelet-Activating factor-induced pulmonary dysfunctions in unsedated calves
Van de Weerdt, ML; Husson, Cécile; Lekeux, Pierre ULg

in Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine (1999), 46(2), 103-113

The purpose of this study was to investigate the possible role of the cholinergic pathway in mediating platelet-activating factor (PAF)-induced pulmonary dysfunctions in unsedated calves. In a placebo ... [more ▼]

The purpose of this study was to investigate the possible role of the cholinergic pathway in mediating platelet-activating factor (PAF)-induced pulmonary dysfunctions in unsedated calves. In a placebo group, PAF infusion challenge induced significant dysfunctions in the pattern of breathing [a significant increase in respiratory rate (RR) and a significant decrease in tidal volume (VT)], the mechanics of breathing [a significant increase in total lung resistance (RL) and a significant decrease in dynamic lung compliance (CLdyn)] and gas exchange, whereas in atropine pre-treated calves, PAF infusion challenge induced a significant increase in RR, VT and HR and a significant decrease in CLdyn. The RL increase was prevented by atropine pre-treatment. On the basis of our findings, we suggest that, in cattle, the PAF-induced pattern of breathing dysfunctions and the diffuse bronchoconstriction and microvascular leakage of small airways are not mediated through the cholinergic pathway. By contrast, our data suggest that PAF-induced bronchoconstriction of upper airways is at least partly mediated through muscarinic receptors. [less ▲]

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See detailL'observance therapeutique.
Scheen, André ULg

in Revue Médicale de Liège (1999), 54(11), 854-8

Compliance is defined as the extent to which a patient's behaviour coincides with medical or health advice. Medication compliance seems to be rather low as 30 to 60% of no or poor adherence to medical ... [more ▼]

Compliance is defined as the extent to which a patient's behaviour coincides with medical or health advice. Medication compliance seems to be rather low as 30 to 60% of no or poor adherence to medical recommendation have been reported. Numerous factors may influence medication compliance among which patient's characteristics, disease particularities, drug treatment modalities or physician's attitudes. The consequences of medication non-compliance may not only be dangerous for patient's health, but also dramatically increase the financial cost for public health services. Thus, all energies should be devoted to improve drug compliance, including treatment optimization and simplification, patient's information and education, use of practical means that facilitate adherence to medical recommendation, the patient being responsible for his/her treatment. [less ▲]

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See detailL'ostéoarthrose chez le chien - Pathophysiologie et diagnostic
Loneux, P.; Balligand, Marc ULg

in Annales de Médecine Vétérinaire (1999), (143), 153-160

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See detailLe diabete gestationnel: definition, depistage et traitement.
Geronooz, I.; Scheen, André ULg; Foidart, Jacqueline ULg

in Revue Médicale de Liège (1999), 54(5), 429-33

Defined as glucose intolerance with onset or first recognition during pregnancy, gestational diabetes mellitus represents in fact an heterogeneous clinical entity which may concern 1 to 4% of all pregnant ... [more ▼]

Defined as glucose intolerance with onset or first recognition during pregnancy, gestational diabetes mellitus represents in fact an heterogeneous clinical entity which may concern 1 to 4% of all pregnant women in our country. Its adverse effects on the mother and her child, the need for a universal screening and the mode of screening are still controversial. Screening may be made either by a first test with a 50 g oral glucose load (the so-called O'Sullivan test), confirmed if positive by a 100 g oral glucose tolerance test (OGTT), or at first glance by a 75 g OGTT performed between the 24th and 28th weeks of gestation. The treatment of gestational diabetes is based on diet. In case of diet failure to obtain good glucose control, insulin therapy should be proposed. [less ▲]

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See detailEarly development of the chondrocranium in Chrysichtys auratus (Pisces, Siluriformes, Claroteidae)
Vandewalle, Pierre ULg; Chikou, Antoine; Lalèyé, Philippe et al

in Journal of Fish Biology (1999), 55

The inception and development of the cartilaginous cephalis skeleton of Chrysichthys auratus is described from hatching to about 18 days post-hatching. At hatching, no skeletal structure is present. Not ... [more ▼]

The inception and development of the cartilaginous cephalis skeleton of Chrysichthys auratus is described from hatching to about 18 days post-hatching. At hatching, no skeletal structure is present. Not until day 3 do clearly delimited cranial primordia become apparent. As in many siluriforms, the neurocranium is platybasic from the start, the suspensorium constitutes, with Meckel’s cartilage and the hyoid bar, a single cartilaginous element, and the junction between the front and rear of the neurocranium is complete on day 4. By day 8 the quadratomandibular joint has formed and the tectum posterius has appeared. Cartilage reduction first affects the trabecular bars, then, markedly, the visceral arches. By day 18 the braincase floor has almost disappeared. [less ▲]

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See detailL'etude clinique du mois. L'etude LIPID: "long-term intervention withpravastatin in ischaemic disease".
Scheen, André ULg

in Revue Médicale de Liège (1999), 54(1), 2-3

The LIPID study is a placebo-controlled, double-bind, randomized trial, performed in 9014 patients with coronary heart disease and total cholesterol levels of 155 to 271 mg/dl. After a mean follow-up of 6 ... [more ▼]

The LIPID study is a placebo-controlled, double-bind, randomized trial, performed in 9014 patients with coronary heart disease and total cholesterol levels of 155 to 271 mg/dl. After a mean follow-up of 6.1 years, patients receiving pravastatin (40 mg/day) had significantly (p < 0.001) lower death rate from coronary heart disease (24%), lower overall mortality (22%) and lower incidence of all cardiovascular outcomes (20 to 29% depending on the event). Interestingly enough, the reduction in death from coronary heart disease or nonfatal myocardial infarction was observed whatever the initial cholesterol concentration, and already significant if total cholesterol was < 213 mg/dl and LDL cholesterol was < 135 mg/dl. Thus, in secondary prevention, the favourable effect of the statin on the coronary heart disease outcomes is observed even in case of initial cholesterol levels yet considered as "normal". [less ▲]

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See detail“La Destruction fut ma Béatrice”. Mallarmé ou l’implosion poétique
Durand, Pascal ULg

in Revue d'Histoire Littéraire de la France (1999), 3

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See detailL'etude clinique du mois. Etudes cliniques a long terme (1-2 ans) avec l'orlistat, nouveau medicament pour le traitement de l'obesite.
Scheen, André ULg

in Revue Médicale de Liège (1999), 54(8), 707-9

Orlistat (Xenical), whose original mechanism of action consists of the selective inhibition of gastrointestinal lipases, has been recently commercialized for the treatment of obesity. Despite its recent ... [more ▼]

Orlistat (Xenical), whose original mechanism of action consists of the selective inhibition of gastrointestinal lipases, has been recently commercialized for the treatment of obesity. Despite its recent launch and when compared to common anorectic agents, it has been much better evaluated in long-term trials carried out according to the rules of Good Clinical Practice. We will summarize the four recently published randomized, placebo-controlled, double-blind clinical trials lasting up to 1 to 2 years and evaluating the effects of orlistat 3 x 120 mg/day in obese patients (BMI > or = 28 kg/m2). [less ▲]

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See detailAuditory evoked potentials and multiple personality measures in migraine and post-traumatic headaches.
Wang, W.; Wang, Y.-H.; Fu, X. M. et al

in Pain (1999), 79(2-3), 235-42

Migraine sufferers have abnormal cerebral information processing and personality disorders, post-traumatic headache sufferers also have some personality changes. We therefore, studied intensity dependence ... [more ▼]

Migraine sufferers have abnormal cerebral information processing and personality disorders, post-traumatic headache sufferers also have some personality changes. We therefore, studied intensity dependence of auditory evoked potentials, Plutchik-van Praag's depression inventory, Zuckerman's sensation seeking scales and Zuckerman-Kuhlman's personality questionnaire in patients suffering from migraine without aura (n = 26) and chronic post-traumatic headaches (n = 26) as well as in healthy volunteers (n = 30). The migraine group showed significantly increased neuroticism-anxiety than controls, increased intensity dependence of N1-P2, and decreased thrill and adventure score compared with the controls and post-traumatic headaches. The post-traumatic headache had significantly increased depression compared with the controls, and increased disinhibition compared with the controls and migraines. This study demonstrates that the two headache types have different neurophysiological and personality traits. The pronounced intensity dependence of N1-P2 suggests a cortical potentiation response, together with a decreased thrill and adventure seeking, favor a lower serotonergic innervation in migraine. While the elevated disinhibition and depression, as consequences, may be linked with the wide cortical neuronal/axonal degeneration in post-traumatic headache. [less ▲]

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See detailLe risque cardio-vasculaire lie a l'hypercholesterolemie: d'un continuum a la notion de normalite, de seuil d'intervention et d'objectif therapeutique.
Scheen, André ULg

in Revue Médicale de Liège (1999), 54(1), 17-21

There appears to be a continuum between the cardiovascular risk and the level of blood cholesterol, which hinders the definition of normal values, intervention threshold and therapeutic goals. The more ... [more ▼]

There appears to be a continuum between the cardiovascular risk and the level of blood cholesterol, which hinders the definition of normal values, intervention threshold and therapeutic goals. The more and more convincing evidences provided by the "Evidence-Based Medicine" should be confronted to the pharmaco-economical constraints in order to first focus the essential of the efforts and resources on the target population with the highest risk. Unfortunately, the therapeutic strategy concerns a rather high percentage of the population of industrialized countries. [less ▲]

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See detailEffectiveness of an acute pain service inception in a general hospital
Bardiau, Françoise ULg; Braeckman, M.M.; SEIDEL, Laurence ULg et al

in Journal of Clinical Anesthesia (1999), 11(7), 583-589

STUDY OBJECTIVES: To assess the effects of an Acute Pain Service (APS) inception on postoperative pain management in a general teaching hospital using pain indicators as performance measures. DESIGN: Open ... [more ▼]

STUDY OBJECTIVES: To assess the effects of an Acute Pain Service (APS) inception on postoperative pain management in a general teaching hospital using pain indicators as performance measures. DESIGN: Open, prospective, nonrandomized, observational study. SETTING: Postanesthesia Care Unit, surgical wards of University Hospital Center of Charleroi. PATIENTS: 1304 patients in the pre-APS inception phase and 671 patients after its implemention who have undergone various types of surgery (orthopedics, gynecology, urology, neurosurgery, stomatology, ear, nose, and throat, ophthalmic, abdominal, vascular-thoracic, plastic, and maxillofacial). INTERVENTIONS: An APS, nurse-based, anesthesiologist-supervised model was devised, based on the concept that postoperative pain relief can be greatly improved by providing in-service training for surgical nursing staff and optimal use of systemic analgesics. MEASUREMENTS AND MAIN RESULTS: Postoperative pain was assessed using a visual analog scale (VAS) every 4 hours for 72 hours in the two phases. Analgesic consumption was registered at the same time. Time-related VAS scores were summarized using several pain indicators. There was an overall improvement in the pain scores after APS inception. The differences were most pronounced, around 50%, in patients undergoing vascular, maxillofacial, gynecologic, and urologic surgeries, and stomatology. Regular administration of paracetamol and nonsteroidal antiinflammatory drugs decreased morphine consumption in the second phase. CONCLUSION: This study validates the benefits of a formal APS, using continuous monitoring of rest pain intensity and analgesic consumption in the postoperative period. Results not only support previous research findings but also offer outcome-based tools to evaluate current practices as compared with desired outcomes. [less ▲]

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See detailLa sécheresse buccale en gériatrie
Hockers, Thierry ULg; Lamy, Marc ULg

in Revue Belge de Médecine Dentaire = Belgisch Tijdschrift voor Tandheelkunde (1999), 54(1), 41-50

Dry mouth is usual in geriatrics. It doesn't seem a age related change of salivary gland tissues, but as often as not, it results from the use of some drugs. Seventy percents of institutionalised elderly ... [more ▼]

Dry mouth is usual in geriatrics. It doesn't seem a age related change of salivary gland tissues, but as often as not, it results from the use of some drugs. Seventy percents of institutionalised elderly population consummate these medications with buccal significance. This publication tries to summarize the means of diagnosis and the possibilities to treat this pathology. [less ▲]

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See detailSPECT and PET imaging of brain tumors.
Hustinx, Roland ULg; Alavi, A.

in Neuroimaging Clinics of North America (1999), 9(4), 751-66

The unique capacity of measuring or visualizing intracellular biochemical processes allows nuclear medicine techniques to determine functional and metabolic activities of various disorders. This article ... [more ▼]

The unique capacity of measuring or visualizing intracellular biochemical processes allows nuclear medicine techniques to determine functional and metabolic activities of various disorders. This article describes the critical role of single-photon emission computed tomography (SPECT) and positron emission tomography (PET) imaging of brain tumors beyond what can be achieved by anatomic methods. [less ▲]

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See detailNC100100, a new echo contrast agent for the assessment of myocardial perfusion--safety and comparison with technetium-99m sestamibi single-photon emission computed tomography in a randomized multicenter study.
Binder, T.; Assayag, P.; Baer, F. et al

in Clinical cardiology (1999), 22(4), 273-82

BACKGROUND AND HYPOTHESIS: Myocardial contrast echocardiography using second-generation agents has been proposed to study myocardial perfusion. A placebo-controlled, multicenter trial was conducted to ... [more ▼]

BACKGROUND AND HYPOTHESIS: Myocardial contrast echocardiography using second-generation agents has been proposed to study myocardial perfusion. A placebo-controlled, multicenter trial was conducted to evaluate the safety, optimal dose, and imaging mode for NC100100, a novel intravenous second-generation echo contrast agent, and to compare this technique with technetium-99m sestamibi (MIBI) single-photon emission computed tomography (SPECT). METHODS: In a placebo-controlled, multicenter trial, 203 patients with myocardial infarction > 5 days and < 1 year previously underwent rest SPECT and MCE. Fundamental and harmonic imaging modes combined with continuous and electrocardiogram-- (ECG) triggered intermittent imaging were used. Six dose groups (0.030, 0.100, and 0.300 microliter particles/kg body weight for fundamental imaging; and 0.006, 0.030, and 0.150 microliter particles/kg body weight for harmonic imaging) were tested. A saline group was also included. Safety was followed for 72 h after contrast injection. Myocardial perfusion by MCE was compared with myocardial rest perfusion imaging using MIBI as a tracer. RESULTS: NC100100 was well tolerated. No serious adverse events or deaths occurred. No clinically relevant changes in vital signs, laboratory parameters, and ECG recordings were noted. There was no significant difference between adverse events in the NC100100 (25.7%) and in the placebo group (17.9%, p = 0.3). Intermittent harmonic imaging using the intermediate dose was superior to all other modalities, allowing the assessment of perfusion in 76% of all segments. Eighty segments (96%) with normal perfusion by SPECT imaging also showed myocardial perfusion with MCE. However, a substantial percentage of segments (61-80%) with perfusion defects by SPECT imaging also showed opacification by MCE. This resulted in an overall agreement of 66-81% and a high specificity (80-96%), but in low sensitivity (20-39%) of MCE for the detection of perfusion defects. CONCLUSION: NC100100 is safe in patients with myocardial infarction. Intermittent harmonic imaging with a dose of 0.03 microliter particles/kg body weight can be proposed as the best imaging protocol. Myocardial contrast echocardiography with NC 100100 provides perfusion information in approximately 76% of segments and results in myocardial opacification in the vast majority of segments with normal perfusion as assessed by SPECT. Although the discrepancies between MCE and SPECT with regard to the definition of perfusion defects requires further investigation, MCE with NC 100100 is a promising technique for the noninvasive assessment of myocardial perfusion. [less ▲]

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See detail• Compte-rendu de l'ouvrage de Jean Gaudemet: Droit privé romain
Gerkens, Jean-François ULg

in Actualités du Droit (1999), (3), 558-559

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See detailEtude des hypothèses de l'analyse de la variance à deux critères de classification : approche par l'exemple
Iemma, A. F.; Claustriaux, Jean-Jacques ULg

in Notes de Statistique et d'Informatique (1999), (3), 36

By examples and results from SAS and Minitab softwares (GLM), analysis of variance hypothesis built to analyse a two dimensional data table are introduced.

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See detailBovine leukemia virus as a model for human T-cell leukemia virus
Willems, Luc ULg; Burny, A.; Dangoisse, O. et al

in Current Topics in Virology (1999)

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See detailThe interannual change of atmospheric CO2: contribution of subtropical ecosystems?
Gérard, Jean-Claude ULg; Nemry, B.; François, Louis ULg et al

in Geophysical Research Letters (1999), 26(2), 243-246

The global terrestrial carbon cycle model CARAIB (CARbon Assimilation In the Biosphere) is used to study the response of the terrestrial ecosystems to the large scale climate variations over the period ... [more ▼]

The global terrestrial carbon cycle model CARAIB (CARbon Assimilation In the Biosphere) is used to study the response of the terrestrial ecosystems to the large scale climate variations over the period 1980-1993. The global net carbon exchange flux with the atmosphere is calculated and compared with the terrestrial contribution derived from the deconvolution of the atmospheric CO2 and delta(13)C measurements. A fairly large CO2 biospheric source is predicted during the strong El Nino events of 1982-83 and 1986-87 as a consequence of the induced global warming. The direct and indirect temperature controls of the primacy production and respiration dominate the CO2 anomaly. An analysis of the relative contribution by latitudinal bands and ecosystems shows that low-latitude vegetation dominates the variability at the El Nino time scale. In savannas, the model indicates that the interannual changes result, to a large extent, from the control of soil water content on gross primary production (GPP). In the tropical cain forests, both respiration and GPP contribute to the response of the net biospheric flux. [less ▲]

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See detailParticularités de la contraction électro-induite : implications rééducatives
Vanderthommen, Marc ULg; Zahlan, O.; BAUVIR, Philippe ULg et al

in Kine 2000 (1999), 10

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See detailLoi de protection des malades mentaux. La mise en observation psychiatrqiue
Boxho, Philippe ULg

in Observatoire : Revue d'Action Sociale & Médico-Sociale (1999), 21

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See detailEtude électrophysiologique des mécanismes responsables de la fatigue chronique dans la sclérose en plaques (SEP)
DELVAUX, Valérie ULg; ALAGONA, G.; GERARD, Pascale ULg et al

in Revue Neurologique (1999), 155(1S51, supp. 1),

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See detailGoverning biodiversity
Mougenot, Catherine ULg; Mormont, Marc ULg

in International Journal of Environment and Pollution (1999), 12(4), 78-99

he hypothesis of this paper is that the value conferred on nature designates both the ''objects of nature'' that are the subject of consideration, and the human beings for whom they are intended or who ... [more ▼]

he hypothesis of this paper is that the value conferred on nature designates both the ''objects of nature'' that are the subject of consideration, and the human beings for whom they are intended or who are responsible for them. These designation processes are dynamic and linked, but also interdependent. In order to examine these processes more closely, we make use of the concept of network, which integrates the action of different players in their specific world, as well as ''objects'' that can be as different as scientific nomenclatures, available sites, management plans, funds, etc. In other words, protection practices link up different universes, scientific models and practices, institutional practices, nature conservation practices and, finally, the evolution of species and natural sites that are not passive entities. The fact that we speak of ''socio-natural'' networks indicates that nature conservation is ''based'' on chains of equivalences that integrate these different players and universes. The processes are dynamic ones. The paper therefore examines how they can be stabilised or expanded, and also how they can be transformed in a much more radical manner. The study is applied to the Walloon Region (in Belgium). The paper first looks at what could be considered as the ''classical nature conservation network'', and then examines how it is called to evolve. The fact is that contemporary situations lead us to take account of different types of networks for conserving and maintaining nature. These are compared, and the paper examines how each of them attempts to take account of the increasingly complex and also increasingly open concept of biodiversity. This perspective of networking also leads us to conclude that none of these networks (scientific, economic, legislative, institutional, etc.) that go to make up nature conservation is capable on its own of giving value to nature. This is acquired - or not - only by building a hybrid chain that cuts across or integrates these different worlds. [less ▲]

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See detailRelationships between pain indicators derived from VAS measurements and analgesics consumption
Boogaerts, Jean; SEIDEL, Laurence ULg; Albert, Adelin ULg et al

in Anesthesiology (1999)

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See detailAdvective excess Ba transport as shown from sediment and trap geochemical signatures
Fagel, Nathalie ULg; André, Luc; Dehairs, Frank

in Geochimica et Cosmochimica Acta (1999), 63(16), 2353-2367

We report the results of a geochemical study of sediment and trap material. Major and trace elements (Zr, Ba, rare earth elements, and Th) were analyzed on bulk sedimentary material collected along the NE ... [more ▼]

We report the results of a geochemical study of sediment and trap material. Major and trace elements (Zr, Ba, rare earth elements, and Th) were analyzed on bulk sedimentary material collected along the NE Atlantic margin. Our aim is to test the widespread use of Ba-barite as a proxy for paleoproductivity in a continental margin area. This environment is of great interest because atmospheric-oceanic exchanges are important. In sediments, the geochemical signatures remain close to an upper crust reference, with flat shale-normalized rare earth elements patterns and constant elementary ratios. The calculated biogenic fraction of Ba or excess Pa (20-45%) remains lower than the excess Ba record in trap material (80-99%). The evolution of the geochemical signature along the margin reflects variable dilution of a detrital Post Archean Australian Shale-like component by a biogenic carbonaceous seawater-derived component. The trap material displays a wide range of variation in its trace element content (e.g., Ba similar to 150-3000 ppm, Zr similar to 2-100 ppm), except for the abyssal site, which is characterized by constant signature. In the two other sites, all of the trace element contents increase with water depth and present pronounced seasonal changes at each sampled water depth. The amount of excess Ba also increases in the deepest traps, and its evolution throughout the year mimics the change of the other analyzed trace elements. In contrast, its relationships with particulate organic carbon are not obvious. In term of fluxes, two periods of enhanced excess Ba fluxes are observed: (1) excess Pa flux increases with the detrital-like elements like Th especially during winter, and (2) excess Pa flux is enhanced without any change for the other trace elements during spring. To explain the first case, a supply through lateral advection is proposed. Such transient input of significant excess Ba flux will have a great impact on the yearly averaged estimation of the export production. Indeed, only the second case reflects a bloom in the biological productivity of the water column and must be taken into account in a mean calculation of the export production. Finally, a normalization of the excess Ba by detrital-like element like Th will help to discriminate between a real increase of the excess Ba due to local productivity change (high excess Ba and high excess Ba/Th ratio greater than or equal to 10,000) and any input due to advection process (high excess Ba but low excess Ba/Th ratio < 2000). Copyright (C) 1999 Elsevier Science Ltd. [less ▲]

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See detailVaux-et-Borset "La Chapelle Blanche" : campagne de fouille 1997
Hauzeur, Anne; Delye, Emmanuel ULg; Caspar, Jean-Paul

in Bulletin du Cercle archéologique Hesbaye-Condroz (1999), XXIV

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See detailWestward propagation of the North Anatolian fault into the northern Aegean: Timing and kinematics
Armijo, R.; Meyer, B.; Hubert, Aurelia ULg et al

in Geology (1999), 27

We present new evidence for the propagation processes of the North Anatolian fault. Fold- ing in the Dardanelles Straits region allows us to document the timing of the deformation pre- ceding, and the ... [more ▼]

We present new evidence for the propagation processes of the North Anatolian fault. Fold- ing in the Dardanelles Straits region allows us to document the timing of the deformation pre- ceding, and the finite displacement after, the passage of the propagating tip of the fault. The accuracy of the observations is due to interplay between deformation and the sea-level changes in the Mediterranean (the well-known Messinian regression followed by the Pliocene transgres- sion). The long-term kinematics around the Sea of Marmara pull-apart (total displacement of about 85 km over the past 5 m.y.) is similar to the present-day kinematics deduced from space geodesy. At a larger scale, westward propagation of the North Anatolian fault over nearly 2000 km in the past 10 m.y. appears to be associated with strain recovery, suggesting that the continental lithosphere retains long-term elasticity. [less ▲]

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See detailFamilial influences on cortical evoked potentials in migraine.
Sandor, P S; Afra, J; Proietti-Cecchini, A et al

in Neuroreport (1999), 10(6), 1235-8

Cortical information processing in migraine patients is impaired between attacks, showing deficient habituation of pattern-reversal visual evoked potentials (VEP), and strong intensity dependence of ... [more ▼]

Cortical information processing in migraine patients is impaired between attacks, showing deficient habituation of pattern-reversal visual evoked potentials (VEP), and strong intensity dependence of auditory cortical evoked potentials (IDAP). This could be a genetic trait as certain genetic patterns are known for evoked potentials in healthy subjects. We investigated VEP habituation and IDAP in 20 pairs of migraineurs made up of parents and their children. Using a Monte-Carlo statistical method, we selectively assessed vertical familial influences. VEP habituation and IDAP were abnormal in both parents and children. However, similarity was far more pronounced between related pairs than between unrelated pairs. Familial influences are highly significant in determinants of cortical information processing in migraineurs, hence supporting the important role of genetic factors. [less ▲]

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See detailHepatitis C virus transmission following invasive medical procedures
Delwaide, Jean ULg; Gerard, Christiane ULg; Vaira, Dolorès ULg et al

in Journal of Internal Medicine (1999), 245(1), 107-108

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See detailGosferia, a new name for Forgesia Gerrienne (Fossil).
Gerrienne, Philippe ULg

in Taxon (1999), 48

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See detailUne tâche pigmentée suspecte
Vanhooteghem, Olivier ULg; Richert, Bertrand ULg; de LA BRASSINNE, Michel ULg

in Revue de Médecine Générale [=RMG] (1999), 166

What is your diagnosis for this periungual coloured spot of the thumb ?

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See detailLa loi du 23 novembre 1998 et le nouveau régime des clauses pénales
Biquet, Christine ULg

in Journal des Tribunaux (1999)

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See detailSolid phase extraction : An alternative to the use of rotary evaporators for solvent removal in the rapid formulation of PET radiopharmaceuticals
Lemaire, Christian ULg; Plenevaux, Alain ULg; Aerts, Joël ULg et al

in Journal of Labelled Compounds & Radiopharmaceuticals (1999), 42(1), 63-75

Solid phase extraction (SPE) was used for the formulation of several radiopharmaceuticals. The method involves dilution of the previously purified HPLC compound with water, trapping of the activity on an ... [more ▼]

Solid phase extraction (SPE) was used for the formulation of several radiopharmaceuticals. The method involves dilution of the previously purified HPLC compound with water, trapping of the activity on an SPE bed, washing off the support, elution of the radiopharmaceutical with a small volume of ethanol (<1 mL) and dilution with sterile isotonic saline solution. Recovery of the radiopharmaceuticals was always higher than 97%. Two different methods of automation were developed for the formulation of [11C] and [18F]radiopharmaceuticals. In all cases, organic solvent levels in the injectable solution were below the recommended limits. This fast (3-6 min.) and easy to automate process can be considered as an alternative to the conventional methods (rotary evaporators). Copyright © 1999 John Wiley [less ▲]

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See detailIndices d'aptitude des procédés de production
Palm, Rodolphe ULg

in Notes de Statistique et d'Informatique (1999), (5), 26

This note describes the main process capability indices and presents some inferential porperties. A numerical example is analysed by Minitab and SAS softwares.

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See detailEvidence for vortex staircases in the whole angular range due to competing correlated pinning mechanisms
Silhanek, Alejandro ULg; Civale, L.; Candia, S. et al

in Physical Review. B : Condensed Matter (1999), 59(21), 13620-13623

We present measurements of the angular dependence of the irreversible magnetization of YBa2Cu3O7 single crystals with columnar defects inclined with respect to the c axis. At high fields a sharp maximum ... [more ▼]

We present measurements of the angular dependence of the irreversible magnetization of YBa2Cu3O7 single crystals with columnar defects inclined with respect to the c axis. At high fields a sharp maximum centered at the tracks direction is observed. At low fields we identify a lock-in phase characterized by an angle-independent pinning strength and observe an angular shift of the peak towards the c axis that originates in the misalignment between vortices and applied field in anisotropic materials. The interplay among columnar defects, twins, and intrinsic pinning by the ab planes generates a variety of staircase structures. We show that correlated pinning dominates for all orientations of the applied field. [S0163-1829(99)09417-5]. [less ▲]

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See detailA novel approach to the study of familial influences on evoked cortical responses in migraine.
Schoenen, Jean ULg; Sandor, P. S.

in Cephalalgia : An International Journal of Headache (1999), 19 Suppl 24

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See detailAutour du chat de Cheshire et de son sourire: Approche phylogénétique du rire et du sourire humains
Servais, Véronique ULg

in Homme (L') : Revue Française d'Anthropologie (1999), volume 39 N° 150(avril-juin), 157-176

The paper offers an original synthesis of the hypothesis of primatologists about the origins of human smile and laughter.

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See detailIdentification and characterization of mRNAs differentially expressed in thyroid cells stimulated by a mitogenic treatment
Pirson, I.; Behrens, J.; Savonet, V. et al

in Biochimie (1999), 81

he aim of our work is to identify new genes and proteins involved in the control of the proliferation of thyroid cells as putative protooncogenes and antioncogenes. Several strategies are discussed. A ... [more ▼]

he aim of our work is to identify new genes and proteins involved in the control of the proliferation of thyroid cells as putative protooncogenes and antioncogenes. Several strategies are discussed. A first study has allowed to identify three new genes. Further search will use the differential display and gene arrays methodology. The role of the identified proteins coded by the genes is studied in vitro by the search of partner proteins by the double hybrid method and in vivo by mice gene knockout technology [less ▲]

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See detailStructure of high-temperature fluid selenium
Raty, Jean-Yves ULg; Saul, A.; Gaspard, Jean-Pierre ULg et al

in Physical Review. B : Condensed Matter (1999), 60(4), 2441-24482448

A semiempirical tight-binding energy model is developed for selenium. It includes s and p electrons as well as an empirical description of the dispersion forces that proves necessary at the liquid ... [more ▼]

A semiempirical tight-binding energy model is developed for selenium. It includes s and p electrons as well as an empirical description of the dispersion forces that proves necessary at the liquid densities under study. The band-structure parameters are obtained by fitting abinitio calculations. The simulated liquid structures are in very good agreement with the most recent X-ray scattering and extended X-ray absorption fine-structure experiments in a broad temperature and density range. The Monte Carlo simulations performed show that the complex liquid structures observed result from the breaking and branching of the selenium chains. The total coordination number is shown to result from the balance between one-, two-, and threefold coordinated atoms. The role of these defects is discussed in relationship with the electrical conductivity of the liquid, i.e., the semiconductor-metal and metal-nonmetal transitions observed at high pressures [less ▲]

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See detailLa vaccination contre le virus respiratoire syncytial bovin
Thiry, Etienne ULg; Pastoret, Paul-Pierre ULg; Valarcher, J. F. et al

in Bulletin des Groupements Techniques Vétérinaires (1999), 5

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See detailUnimolecular reaction dynamics from kinetic energy release distributions. III. A comparative study of the halogenobenzene cations
Urbain, P.; Leyh, Bernard ULg; Remacle, Françoise ULg et al

in Journal of Chemical Physics (1999), 110(2-12), 2911-2921

The translational kinetic energy release distribution (KERD) in the halogen loss reaction of the chloro-, bromo-, and iodobenzene cations has been experimentally determined in the microsecond time scale ... [more ▼]

The translational kinetic energy release distribution (KERD) in the halogen loss reaction of the chloro-, bromo-, and iodobenzene cations has been experimentally determined in the microsecond time scale and theoretically analyzed by the maximum entropy method. The KERD is constrained by the square root of the translational energy, i.e., by the momentum gap law. This can be understood in terms of quantum-mechanical resonances controlled by a matrix element involving a localized bound state and a rapidly oscillating continuum wave function, as in the case of a vibrational predissociation process. The energy partitioning between the reaction coordinate and the set of the remaining coordinates is nearly statistical, but not quite: less translational energy is channeled into the reaction coordinate than the statistical estimate. The measured entropy deficiency leads to values of the order of 80% for the fraction of phase space sampled by the pair of fragments with respect to the statistical value. In the case of the dissociation of the chlorobenzene ion, it is necessary to take into account a second process which corresponds to the formation of the chlorine atom in the excited electronic state 2P 1/2 in addition to the ground state 2/ 1/2. The observations are compatible with the presence of a small barrier (of the order of 0.12 eV) along the reaction path connecting the D̃ 2A 1 state of C 6H 5Cl + to the Cl( 2P 1/2) + C 6H 5 +(X̃ 1A 1) asymptote. © 1999 American Institute of Physics. [less ▲]

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See detailAberglauben, Krankheit und das Böse. Exorzismus und Teufelsglaube im 18. und 19. Jahrhundert
Van den Bossche, Benoît ULg; Freytag, Niels

in Rheinisch-westfälische Zeitschrift für Volkskunde (1999), XLIV

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See detailL'effet dévolutif de l'appel et le sort en degré d’appel des déclinatoires de la compétence du juge siégeant en référé et comme en référé en matière commerciale
Boularbah, Hakim ULg

in Revue de Droit Commercial Belge [= RDC] = Tijdschrift voor Belgisch Handelsrecht [=TBH] (1999)

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See detailA nouveau des questions sur les droits du C.P.A.S. à l'égard des débiteurs alimentaires
Paris, Catherine ULg

in Revue Générale de Droit Civil Belge = Tijdschrift voor Belgisch Burgerlijk (1999)

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See detailcompte rendu de : H. Salevsky, Über die Sprache hinaus. Beiträge zur Tanslationswissenchaft
Rochette, Bruno ULg

in Babel : Revue Internationale de la Traduction = International Journal of Translation (1999), 45(4), 381-383

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See detailIdentification of coiled body-like structures in meristematic cells of Pisum sativum cotyledonary buds.
Jennane, A.; Thiry, Marc ULg; Goessens, Guy ULg

in Chromosoma (1999), 108(2), 132-42

This study focused on two types of nuclear bodies visible in plant cells that were previously thought to be similar to the coiled bodies (CBs) of animal cells: the nucleolus-associated body (NAB) and ... [more ▼]

This study focused on two types of nuclear bodies visible in plant cells that were previously thought to be similar to the coiled bodies (CBs) of animal cells: the nucleolus-associated body (NAB) and dense body (DB). We show that both NABs and DBs share common features with animal CBs: they consist of ribonucleoproteins, are silver-stainable, and lack DNA. Immunoelectron microscopy shows that only the NABs are rich in snRNAs and fibrillarin, two markers characteristic of animal CBs. This suggests that NABs rather than DBs are the plant counterparts of the CBs of animal cells. These structures appear most frequently in cells blocked in G0-1, their frequency gradually declining with resumption of the cell cycle and nucleolar activity. During this reactivation period, NABs are released from the nucleolus to the nucleoplasm, suggesting that they may act as nuclear transport or sorting structures. [less ▲]

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See detailGenetic control of isozymes in the primary gene pool Phaseolus lunatus L.
Bi, Irié Zoro; Maquet, Alain; Wathelet, Bernard ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (1999)

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See detailProbabilistic design of power-system special stability controls
Wehenkel, Louis ULg; Lebrevelec, Cyril; Trotignon, Marc et al

in Control Engineering Practice (1999), 7(2), 183-194

A probabilistic approach to the design of power-system special stability controls is presented here. Using Monte-Carlo simulations, it takes into account all the potential causes of blackouts, slow and ... [more ▼]

A probabilistic approach to the design of power-system special stability controls is presented here. Using Monte-Carlo simulations, it takes into account all the potential causes of blackouts, slow and fast dynamics, and modeling uncertainties. A large number of scenarios are simulated in parallel by time-domain numerical integration, and the relevant parameters of the resulting system trajectories are stored in a database. Data-mining tools are used to identify the most important system weaknesses and possible improvements. The approach is tested on a large-scale study on the SouthÐEastern part of the extra-high-voltage system of Electricité de France. [less ▲]

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See detailAdjuvant small field pelvic radiation for patients with high risk, stage IB lymph node negative cervix carcinoma after radical hysterectomy and pelvic lymph node dissection. A pilot study.
KRIDELKA, Frédéric ULg; Berg, D. O.; Neuman, M. et al

in Cancer (1999), 86(10), 2059-65

BACKGROUND: After radical hysterectomy and pelvic lymph node dissection, an identifiable subgroup of patients with International Federation of Gynecology and Obstetrics Stage IB lymph node negative cervix ... [more ▼]

BACKGROUND: After radical hysterectomy and pelvic lymph node dissection, an identifiable subgroup of patients with International Federation of Gynecology and Obstetrics Stage IB lymph node negative cervix carcinoma remains at high risk of pelvic recurrence. This study attempted to determine whether postoperative small field of pelvic radiation can improve the disease free survival (DFS) of this high risk group of patients without producing significant morbidity. METHODS: Between 1991 and 1995, after radical surgery, 25 patients with Stage IB lymph node negative cervix carcinoma were considered to be at high risk of pelvic recurrence on the basis of tumor dimension, depth of stromal invasion, and the presence of lymph-vascular space invasion. All had a score >/= 120 as determined by the Gynecologic Oncology Group (GOG) study. These patients received 50.4 gray of adjuvant radiation to a small central pelvic field and were followed prospectively. A Kaplan-Meier 5-year DFS curve was generated. A log rank analysis produced an estimated log rank P value (est P value) by comparing the 5-year DFS of the patients in the current study with the 5-year DFS of the corresponding high risk group of the GOG study (observation only). The morbidity of small field pelvic radiation was recorded. RESULTS: Among the 25 patients who received small field pelvic radiation, the mean GOG score was 166 (range, 120-263) and the mean follow-up was 32 months (range, 12-64 months). There was 1 recurrence (4%) recorded at 16 months. The log rank analysis demonstrated a significant improvement in the 5-year DFS for the group who received adjuvant small field pelvic radiation (est P value = 0.005) when compared with the DFS of the high risk GOG patients who were observed postoperatively. Four cases of minor morbidity were recorded: lymphedema (three cases) and mild rectal incontinence (one case). No major morbidity was reported. CONCLUSIONS: With low morbidity, adjuvant small field pelvic radiation appears to improve significantly the 5-year DFS of patients with high risk, lymph node negative Stage IB cervical carcinoma. However, this pilot study requires verification. [less ▲]

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See detailSimultaneous Reactivation of Herpes Simplex Virus and Varicella-Zoster Virus in a Patient with Idiopathic Thrombocytopenic Purpura
Nikkels, Arjen ULg; Frere, P.; Rakic, L. et al

in Dermatology : International Journal for Clinical & Investigative Dermatology (1999), 199(4), 361-364

Simultaneous reactivation of distinct Herpesviridae with development of clinical manifestations is exceptional. We report a 48-year-old woman suffering from idiopathic thrombocytopenic purpura. As the ... [more ▼]

Simultaneous reactivation of distinct Herpesviridae with development of clinical manifestations is exceptional. We report a 48-year-old woman suffering from idiopathic thrombocytopenic purpura. As the disease remained refractory to corticosteroids, immunoglobulins and splenectomy, a cure of vinblastine was administered. An atypical stomatitis developed few days later. Immunohistochemistry on a Tzanck smear and a biopsy evidenced a Herpes simplex virus type 1 (HSV-1) infection. The patient presented simultaneously a single necrotic lesion on the abdomen. Immunohistochemistry on a skin biopsy revealed the presence of the varicella-zoster virus (VZV) gE, gB and IE63 proteins. Intravenous aciclovir was initiated. The present case of simultaneous clinical infections by HSV-I and VZV underlines the importance of complementary viral identification testing in the event of unusual clinical presentations. [less ▲]

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See detailSpirometric Variables Recorded after Lobeline Administration in Healthy Friesian and Belgian White and Blue Calves: Normal Values and Effects of Somatic Growth
Bureau, Fabrice ULg; Uystepruyst, C. H.; Coghe, J. et al

in Veterinary Journal (1999), 157(3), 302-308

The purposes of the present study were: (1) to develop original equations to predict spirometric variables (SV) in healthy Friesian and Belgian White and Blue (BWB) calves < 1 year of age; and (2) to ... [more ▼]

The purposes of the present study were: (1) to develop original equations to predict spirometric variables (SV) in healthy Friesian and Belgian White and Blue (BWB) calves < 1 year of age; and (2) to determine the effects of somatic growth on SV. Sixty-seven Friesian and 500 BWB calves were investigated. For each calf, the following SV were calculated: (1) the average minute volume derived using all the ventilatory cycles recorded during the 15 s of maximal ventilatory changes induced by lobeline administration (0.25 mg/kg, i.v.) (15-s LMV); (2) the maximal tidal volume, the maximal peak expiratory flow and the maximal peak inspiratory flow recorded from single breaths after lobeline administration (MVTL, MPEFLand MPIFL, respectively); (3) the ventilatory reserve (VRL= 15-s LMV - VEr; VEr= minute volume at rest). Mass specific (s) values were also calculated. All SV changed linearly with somatic growth in both Friesian and BWB calves. Since the rise in SV was more related to body weight than the age of calves, equations for reference values of SV always had body weight as the only independent variable. In the youngest calves, s SV were lower in the BWB breed. In the oldest calves (i.e. 1 year of age), s MPEFLand s MPIFLremained small in BWB calves whereas s MVTL, s 15-s LMV and s VRLwere almost equal in both breeds. These results could be related to the lower resistance to respiratory disorders in BWB calves < 1 year of age than in Friesian calves < 1 year of age. [less ▲]

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See detailInvolvement of indole-3-acetic acid in the circadian growth of the first internode of Arabidopsis
Jouve, Laurent; Gaspar, Thomas ULg; Kevers, Claire ULg et al

in Planta (1999), 209(1), 136-142

The extension rate of the first inflorescence node of Arabidopsis was measured during light/dark or continuous light exposure and was found to exhibit oscillations which showed a circadian rhythmicity ... [more ▼]

The extension rate of the first inflorescence node of Arabidopsis was measured during light/dark or continuous light exposure and was found to exhibit oscillations which showed a circadian rhythmicity. Decapitation induced a strong inhibition of stem extension. Subsequent application of IAA restored growth and the associated extension-rate oscillations. In addition, IAA treatments, after decapitation, re-established the circadian rhythmicity visible in the intact plants during free run. This indicates that the upper zone of the inflorescence has a major influence on the extension rate of floral stems and implies a role for auxin. Application of N-(1-naphthyl)phthalamic acid, an IAA transport inhibitor, to an intact floral stem inhibited growth and the rhythmicity in the extension rate oscillations, indicating that IAA polar transport may play a role in the dynamics of stem elongation. Furthermore, IAA-aspartate application, after decapitation, did not restore growth and rhythmicity. Nevertheless, biochemical analysis of IAA and IAA-aspartate demonstrated circadian fluctuations of the endogenous levels of both compounds. These observations suggest that IAA metabolism is an essential factor in the regulation of the circadian growth rhythm of Arabidopsis floral stems. [less ▲]

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See detailLes mesures provisoires en droit commercial international : développements récents au regard des Conventions de Bruxelles et de Lugano
Boularbah, Hakim ULg

in Revue de Droit Commercial Belge [= RDC] = Tijdschrift voor Belgisch Handelsrecht [=TBH] (1999)

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See detailLa nouvelle procédure contentieuse en matière de taxes provinciales et communales
Orban, Lionel ULg

in Actualités du Droit (1999)

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See detailIncreased aortic compliance and energetic cost of cardiac ejection
Kolh, Philippe ULg; LAMBERMONT, Bernard ULg; GERARD, P et al

in Acta Cardiologica (1999), 53(6), 387

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See detailPlasma myeloperoxidase level and polymorphonuclear leukocyte activation in horses suffering from large intestinal obstruction requiring surgery: preliminary results.
Grulke, Sigrid ULg; Benbarek, H.; Caudron, I. et al

in Canadian Journal of Veterinary Research = Revue Canadienne de Recherche Vétérinaire (1999), 63(2), 142-7

Myeloperoxidase (MPO) is a specific enzyme of neutrophil azurophilic granules with a strong oxidative activity. Thanks to a radioimmunoassay of equine myeloperoxidase, the authors have observed a ... [more ▼]

Myeloperoxidase (MPO) is a specific enzyme of neutrophil azurophilic granules with a strong oxidative activity. Thanks to a radioimmunoassay of equine myeloperoxidase, the authors have observed a significantly higher plasma level of MPO in horses operated for strangulation obstruction of the large intestine (n = 6) than in horses suffering from a non-strangulating displacement of the large intestine (n = 9). For the 2 groups, 3 phases were distinguished: reception (P1), intensive care (P2) and terminal phase (P3). The mean peak values of MPO for these phases were 121.6 ng/mL (P1), 168.6 ng/mL (P2), and 107.0 ng/mL (P3) for the non-strangulating group, and 242.6 ng/mL (P1); 426.0 ng/mL (P2), and 379.5 ng/mL (P3) for the strangulation group. The variations of the mean peak values of plasma MPO were significantly different between the 2 groups and between the different phases. A significant increase of the least square means of MPO was observed between P1 and P2. A significant decrease of the least square means of the number of circulating leukocytes was observed between P1 and P3. Polymorphonuclear neutrophil activation could play a major role in the pathogenesis of acute abdominal disease and endotoxic shock. [less ▲]

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See detailFlora and vegetation of Turtell V, Turtell Islands group (Queensland, Australia).
De Sloover, Jacques; Dufrêne, Marc ULg

in Bulletin du Jardin Botanique National de Belgique = Bulletin van de Nationale Plantentuin van België (1999), 67

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See detailUse of multitrait evaluation procedures to improve reliability of early prediction of survival
Druet, Tom ULg; Solkner, J.; Gengler, Nicolas ULg

in Journal of Dairy Science (1999), 82(9), 20541-205416

Multitrait, across-country evaluation procedures were adapted to improve reliability of survival breeding values by combining direct information with yield and functional traits: milk persistency, somatic ... [more ▼]

Multitrait, across-country evaluation procedures were adapted to improve reliability of survival breeding values by combining direct information with yield and functional traits: milk persistency, somatic cell count, fertility (male and female), and calving ease (direct and maternal). A set of bulls was selected from the Austrian Simmental population based on mean original reliabilities of at least 0.50 for yield traits or of at least 0.20 for functional traits. Only breeding values above these limits were retained. The breeding values were deregressed, assuming that they were obtained by single-trait, sire-maternal grandsire models. An expectation maximization restricted maximum likelihood algorithm based on the multitrait, across-country evaluation equations was used to compute genetic correlations among all of these traits. These equations were solved, and the reliabilities of the solutions were also estimated. Mean rank correlation between direct and combined breeding values was 0.85 with values as low as 0.67 for the group of youngest bulls, Direct (original), indirect, and combined reliabilities were compared to appreciate the impact of our procedures on improvement of reliability of survival breeding values; This improvement, dependent on the level of reliability of direct and indirect information, could be up to 0.24 for animals with low direct reliability and high indirect reliability. For young bulls born in 1992 without reliable direct survival information but with already reliable information on yield and functional traits, mean reliability improvement was 0.13. For all bulls this value was still 0.06. [less ▲]

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See detailCanopy gap morphology determinants in an Amazonian rain forest.
Salvador-Van Eysenrode, D; Bogaert, Jan ULg; Impens, I

in Selbyana (1999), 20(2), 339-344

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See detailQuantum mechanical statistical theories for chemical reactivity. Overlapping resonances
Desouter, Michèle ULg; Chapuisat, Xavier

in Physical Chemistry Chemical Physics [=PCCP] (1999), 1

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See detailEffet de la paille de froment et de la sciure d’épicéa sur la dégradation de l’azote urinaire en présence d’uréase
Nimenya, H.; Delaunois, Annie; Bloden, Serge ULg et al

in Annales de Médecine Vétérinaire (1999), 143

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See detailPrise en charge thérapeutique de la maladie de Huntington
DELVAUX, Valérie ULg; Schoenen, Jean ULg

in Ahead in Neurology (1999), 3(2), 13-16

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See detailAu sujet des cratères lunaires et d'un astronome montois...
Biémont, Emile ULg; Frémat, Y.; Palmeri, P. et al

in Galactée (1999), 16

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See detailConnectionist symbol processing : dead or alive ?
Blank, D. S.; Coltheart, M.; Diederich, J. et al

in Neural Computing Surveys (1999), 2

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