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See detailA 4-year study of the mycological aspects of Kashin-Beck disease in Tibet
Chasseur, Camille; Suetens, Carl; Michel, Valérie et al

in International Orthopaedics (2001), 25

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See detailGlutathione S-transferases of Aulacorthum solani and Acyrthosiphon pisum: partial purification and characterization.
Francis, Frédéric ULg; Haubruge, Eric ULg; Gaspar, Charles ULg et al

in Comparative Biochemistry & Physiology Part B (2001), 129(1), 165-71

Glutathione S-transferases (GST) play an important role in the detoxification of many substances including allelochemicals from plants. Brassicaceae plants contain glucosinolates and emit volatile ... [more ▼]

Glutathione S-transferases (GST) play an important role in the detoxification of many substances including allelochemicals from plants. Brassicaceae plants contain glucosinolates and emit volatile isothiocyanates which affect the GST system. A comparison of the GST of two aphid species, the generalist Aulacorthum solani found on Brassicaceae and the Fabaceae specialist Acyrthosiphon pisum, was made to try to explain their respective feeding behaviour. Differences of GST were determined among the two aphid species based on purification by affinity chromatography, SDS-PAGE and on kinetic studies. Purification yields using an epoxy-activated Sepharose 6B column were highly different for the two aphid species (18% and 34% for A. solani and A. pisum, respectively). These variations were confirmed by SDS-PAGE. While only a 27-kDa band was observed for A. pisum, two bands of approximately 25-kDa were visualized for the generalist aphid, A. solani. Considering the kinetic results, differences of Km and Vmax were observed following the aphid species when a range of substrates (CDNB and DCNB) and GSH concentrations were tested. Studies on the detoxification enzymes of generalist and specialist herbivores would be undertaken to determine accurately the effect of the host plant on the organisms eating them, particularly in terms of biochemical and ecological advantages. [less ▲]

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See detailPre-and post-harvest application of antagonistic yeasts for the control of gray and blue mold: efficacy and monitoring
De Clercq, D.; Dickburt, C.; Lepoivre, Philippe ULg et al

in Phytopathology (2001), 91(6), 21

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See detailCompte-rendu de Daniel Giovannangeli, Le retard de la conscience. Husserl, Sartre, Derrida
Leclercq, Bruno ULg

in Recherches Husserliennes (2001), 16

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See detailColomb interactions and the 17 August 1999 Izmit, Turkey earthquake
King, G. C. P.; Hubert, Aurelia ULg; Nalbant, S. S. et al

in Comptes Rendu de l’Académie des Sciences de Paris - Série 2. Sciences de la terre et des planètes (2001), 333(rie 2. Sciences de la terre et des planètes), 557-569

At 00:02 GMT (03:02 local time) on 17 August, 1999 a magnitude 7.4 (Ms) earthquake occurred 100 km east of Istanbul causing extensive destruction. The event was expected and several scientists have ... [more ▼]

At 00:02 GMT (03:02 local time) on 17 August, 1999 a magnitude 7.4 (Ms) earthquake occurred 100 km east of Istanbul causing extensive destruction. The event was expected and several scientists have published and attempted to publicize the danger. A paper on stress interactions for NW Turkey (J. Geophys. Res. 103 (1998) 24466–24469) concluded that “by combining the stress change map with the map of active faulting, likely locations for the occurrence of future earthquakes can be refined; faults in the Izmit Bay area, the western part of Biga Peninsula, the Saroz Gulf and a part of western Sea of Marmara must be regarded as posing a specific hazard”. An extension of that study is described here. It is shown that the Izmit (1999) earthquake loaded faults both to the east and west of the Izmit rupture. About three months after the Izmit event an M 7.2 earthquake occurred with an epicenter at Duzce extending the Izmit rupture to the east. In the Marmara Sea, west of Izmit, faults have been loaded by between 1 and 5 bar; 5 to 30 % of typical earthquake stress drops in the region suggesting the likelihood of a future event. The risk of a major event on a fault depends not just on stress increases associated with an individual earthquake, but also on the longer-term earthquake history and on tectonic loading. The roles of both are examined over two time periods from 1900 to 1999 and 1700 to 1999. Whatever interpretation we place on the data we conclude that one or two events as great or greater than the recent one is likely to occur within the next few decades near to the northern coast of the Marmara Sea [less ▲]

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See detailEthno-agricultural approach to the rural environment in the prevention of Kashin-Beck disease
Malaisse, François ULg; Haubruge, Eric ULg; Mathieu, Françoise et al

in International Orthopaedics (2001), 25

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See detailComparison of inulin with urea as dilutional markers of bronchoalveolar lavage in healthy and heaves-affected horses.
Kirschvink, Nathalie; Fievez, Laurence ULg; Dogne, S. et al

in Veterinary Research (2001), 32(2), 145-154

Solute analysis in bronchoalveolar lavage fluid involves the use of dilutional markers to correct for variable recovery of pulmonary epithelial lining fluid (PELF). Urea is the best characterised ... [more ▼]

Solute analysis in bronchoalveolar lavage fluid involves the use of dilutional markers to correct for variable recovery of pulmonary epithelial lining fluid (PELF). Urea is the best characterised endogenous marker, whereas inulin appears to meet the requirements of an exogenous marker. In horses, the use of inulin has never been investigated and the impact of lower airway diseases such as heaves, on PELF recovery is unknown. In this study, five healthy and five heaves-affected horses underwent airway endoscopy and bronchoalveolar lavage. PELF recovery from bronchoalveolar lavage was calculated by the inulin and the urea method. The inulin method was compared to the urea method and differences between healthy and heaves-affected horses were analysed. From a technical and analytical point of view, inulin fulfilled the requirements of a marker of dilution as well as urea. When both healthy and heaves-affected horses groups were pooled together, PELF recovery calculated by the inulin method was significantly higher than by the urea method (6.43+/-4.08% versus 0.789+/-0.299%, P < 0.005). No significant differences were observed between healthy and heaves-affected horses, neither by the inulin nor by the urea method. Inulin did not present major advantages over urea, but the combined use of both markers can improve the standardisation of studies comparing PELF compounds, by providing upper limits (inulin dilution) and lower limits (urea dilution) of PELF recovery. [less ▲]

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See detailLow TSH requirement and goiter in transgenic mice overexpressing IGF-1 and IGF-1R in the thyroid gland
Clément, S.; Refetoff, S.; Robaye, B. et al

in Endocrinology (2001), 142(12), 5131-5139

Through the cAMP signaling pathway, TSH stimulates thyroid follicular cell proliferation, differentiation, and function. Although the autocrine production of IGF-I in the thyroid gland suggests an ... [more ▼]

Through the cAMP signaling pathway, TSH stimulates thyroid follicular cell proliferation, differentiation, and function. Although the autocrine production of IGF-I in the thyroid gland suggests an important physiological function for this factor in these processes, the exact role of the IGF-I/IGF-I receptor system in vivo remains unclear. Although the mitogenic action of TSH requires the presence of IGF-I or insulin in primary culture of dog and human thyroid cells, IGF-I has an effect equal to and independent of the effect of TSH on cell proliferation in rat thyroid cell lines and may even be the main growth regulator in this case. To investigate the in vivo function of the IGF-I/IGF-I receptor system, transgenic mice overexpressing human IGF-I, IGF-I receptor, or both in the thyroid were generated. Adult transgenic mice did not present external signs of thyroid dysfunction, but mice overexpressing both transgenes had significantly increased gland weight and follicular lumen area. A decreased TSH level together with a slightly increased serum T4 concentration and increased thyroidal iodine uptake were also observed, suggesting that IGF-I and IGF-I receptor stimulate thyroid function to some extent in vivo [less ▲]

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See detailLa résilience hors la loi
Born, Michel ULg; Boët, Sylvie

in Cyrulnik, B. (Ed.) La résilience : le réalisme de l'espérance (2001)

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See detailMonitoring of erythropoiesis by the serum transferrin receptor and erythropoietin.
Fillet, Georges ULg; Beguin, Yves ULg

in Acta Clinica Belgica (2001), 56(3), 146-54

Virtually all cells have transferrin receptors (a transmembrane glycoprotein) on their surface but in a normal adult, 80% of them are in the erythroid marrow. Some of them are lost into the circulation ... [more ▼]

Virtually all cells have transferrin receptors (a transmembrane glycoprotein) on their surface but in a normal adult, 80% of them are in the erythroid marrow. Some of them are lost into the circulation where they can be measured by immuno-assays. A direct and highly significant correlation exists between serum transferrin receptor level and erythron transferrin uptake in humans. The measurement of serum transferrin receptor has wide clinical applications for the quantitation of erythropoiesis. It can be used to study erythropoiesis in situations in which ferrokinetics is not acceptable such as pregnancy. It is particularly useful for serial studies, e.i., for monitoring the recovery of erythropoiesis after stem cell transplantation or after treatment with erythropoietin. Combined with the determination of serum erythropoietin, both evaluated in relation to the degree of anemia, they provide a physiological approach to the diagnosis of anemia. Thus, the simultaneous determination of hematocrit, reticulocytes, serum transferrin receptor and serum erythropoietin has high discriminatory value in distinguishing between a defect in erythroid proliferation, maturation or red cell survival. It is also particularly useful for detecting the presence of multiple mechanisms of anemia in the same patient. [less ▲]

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See detailSpatialité et temporalité du vécu du bien-être
Manfredini, Tiber ULg; Gavray, Claire ULg; Born, Michel ULg

in Bawin, B. (Ed.) L'exclusion et l'insécurité d'existence en milieu urbain (2001)

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See detailDélinquance, désistance et résilience à l’adolescence
Born, Michel ULg; Boet, Sylvie

in Manciaux, M. (Ed.) La résilience : résister et se construire (2001)

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See detailSupport, training and regulation as key success factors in developing e-learning
Poumay, Marianne ULg; Dupont, Chantal ULg; Georges, François ULg et al

in 2nd WBLE Conference (2001)

This paper intends to identify some success factors in the issues of course development and management of change in ODL in Belgium. We will give an overview of the tools and methods for staff support at ... [more ▼]

This paper intends to identify some success factors in the issues of course development and management of change in ODL in Belgium. We will give an overview of the tools and methods for staff support at the University of Liège. Based on four years of experience, we will describe that support and highlight the type of training that appears to be efficient. We hope this clarification could help other universities or training organisations make their decisions in terms of staff support and training towards the development of ODL. [less ▲]

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See detailEvaluations internationales : Les enjeux du jour et de l'histoire
Baye, Ariane ULg

in Cahiers du Service de Pédagogie Expérimentale (SPE) (2001), (7-8), 11-23

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See detailLe projet préscolaire de l'IEA : Améliorer la connaissance pour accroître la qualité des expériences vécues par les enfants d'âge préscolaire
Hindryckx, Geneviève ULg

in Cahiers du Service de Pédagogie Expérimentale (SPE) (2001), (7-8), 65-69

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See detailÉtude de l'influence de l'hydrodynamique sur une bactérie filamenteuse par analyse d'images
Groslambert, Sylvie ULg; Blacher, Silvia ULg; Crine, Michel ULg

in Récents Progrès en Génie des Procédés (2001), 78(18), 153-158

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See detailEssais d’induction artificielle de la lactation chez des génisses âgées de 6 a 7 mois
Nchare, A.; Salaheddine, M.; Desbuleux, H. et al

in Annales de Médecine Vétérinaire (2001), 145(6, Suppl. S), 365-371

The rates of successful gene's manipulations are very low in domestic mammals. In addition the period between generations in cows is long. Artificial induction of lactation in young animals could improve ... [more ▼]

The rates of successful gene's manipulations are very low in domestic mammals. In addition the period between generations in cows is long. Artificial induction of lactation in young animals could improve manipulation yield for genes what are expressed in the udder, by anticipating the control of transgen expression in milk, a long time before the beginning of the milk production in normal condition. Using this method, the early selection of real transgenic animals would be possible. Between November 1999 and April 2000, lactation was induced in non-transgenic heifers aged from 6 to 7 months, in 2 trials based on short time hormonal treatment, with the goal of verifying the efficiency of the technique on immature heifers, and setting up a simple and reliable treatment scheme applicable on young animals. Interesting lactations (35 to 974 ml/day) were obtained, but the milk yield was low compared to adult performances. Results of the 2 trials were different, in relation with the galenical form of progesterone used and the frequency of drugs administration. So, these trials provide an efficient treatment scheme for induction of lactation in young heifers. [less ▲]

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See detailCaractéristiques de la reproduction dans l’espèce caprine
Zarrouk, A.; Souilem, O.; Drion, Pierre ULg et al

in Annales de Médecine Vétérinaire (2001), 145

This review pointed out the physiological basis of goat reproduction. So far assimilated to ewes, goats presented their own characteristics concerning the sexual activity and the endocrinology of ... [more ▼]

This review pointed out the physiological basis of goat reproduction. So far assimilated to ewes, goats presented their own characteristics concerning the sexual activity and the endocrinology of pregnancy. The well understanding of goat particularities is essential to control cyclic activities and reproduction applicationCe travail passe en revue les bases physiologiques de la reproduction dans l’espèce caprine. Longtemps assimilée à la brebis, la chèvre présente des spécificités propres, tant sur le plan du déroulement des cycles sexuels que sur le plan de l’endocrinologie de la gestation. Une bonne connaissance des particularités de la reproduction dans cette espèce permet une meilleure maîtrise du contrôle du cycle sexuel et des techniques de la reproduction [less ▲]

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