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See detailLe positionnement multidimensionnel : principes et applications
Palm, Rodolphe ULg

in Notes de Statistique et d'Informatique (2003), (1), 1-32

This note describes some multidimensional scaling methods for two-way, one-mode tables and for three-way, two-mode tables. The methods are illustrated by an example processed by PROC MDS of SAS software.

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See detailComparaison empirique des estimateurs des taux d'erreur en analyse discriminante
Glele Kakai, R.; Piraux, F.; Fonton, N. H. et al

in Revue de Statistique Appliquée (2003), LI(3), 61-74

Monte Carlo experiments are performed to compare twenty estimators or error rates in discriminant analysis in the case of two populations and linear classification rule. Several distributions (normal, chi ... [more ▼]

Monte Carlo experiments are performed to compare twenty estimators or error rates in discriminant analysis in the case of two populations and linear classification rule. Several distributions (normal, chi-square and beta) have been considered. Estimators eOS (for actual and expected error rate) and eB (for optimal error rate) are the best, except for distributions very different from normal distributions. The e632 estimator is the best non parametric estimator. This estimator is better than parmetric estimators for distributions very different from normal distributions. [less ▲]

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See detailInterprétation géométrique de la régression
Iemma, A. F.; Palm, Rodolphe ULg

in Notes de Statistique et d'Informatique (2003), (2), 1-28

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See detailElevated atmospheric CO2 influences ammonia oxidiser community structure and net nitrification
Carnol, Monique ULg; Malchair, Sandrine ULg

in International Symposium: Structure and Function of Soil Microbiota, Philipps-University Marburg, Germany, September 18-20, 2003 (2003)

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See detailIdentités et valeurs politiques : quelle homogénéité pour l'Eurégio ?
Jacquemain, Marc ULg

in Fédéralisme - Régionalisme (2003)

Euregio Mosa-Rhine is a euregional structure that agregates Province of Liege and German-speaking belgian community (Belgium) Province of Limburg (Belgium), Province of South-Limburg (Netherlands) and ... [more ▼]

Euregio Mosa-Rhine is a euregional structure that agregates Province of Liege and German-speaking belgian community (Belgium) Province of Limburg (Belgium), Province of South-Limburg (Netherlands) and Regio Aachen (Germany). It is supposed to be an area with many commercial and cultural inter-relations. Throuth a survey led in 2002, the paper tries to assess cultural similitaries and differences between the five components at the level of social identity and political values. It shows a contrasted landscape where the two dutch-speaking parts being more individualist, the german part being more comunitarian and, at the heart, the province of Liege more materialist and egalitarian. [less ▲]

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See detailOptimizing treatment with thioguanine derivatives in inflammatory bowel disease.
Louis, Edouard ULg; Belaiche, Jacques ULg

in Bailliere's Best Practice & Research. Clinical Gastroenterology (2003), 17(1), 37-46

Thioguanine derivatives, azathioprine and 6-mercaptopurine, represent major drugs in the treatment of chronic active inflammatory bowel disease. They are effective in two-thirds of the patients and safe ... [more ▼]

Thioguanine derivatives, azathioprine and 6-mercaptopurine, represent major drugs in the treatment of chronic active inflammatory bowel disease. They are effective in two-thirds of the patients and safe over the long term in patients who can tolerate them (80-90%). Recent progress in understanding the metabolism of these drugs and its implication in clinical practice have brought up new tools and strategies that are proposed to optimize treatment. In particular, the measurement and characterization of key enzymes and metabolites may have clinical impact. Thus, thiopurine methyl transferase genotyping and activity measurement, as well as erythrocytes, 6-thioguanine nucleotides and 6-methyl mercaptopurine levels, may help in some situations of intolerance or inefficacy with these drugs. Indications for starting and stopping treatment with thioguanine derivatives are also discussed. [less ▲]

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See detailA défaut d'un groupe
Jacquemain, Marc ULg

in Collectif (Ed.) Par défaut : états d'un collectif sans parenté (2003)

Le texte s'appuie sur des entretiens avec huit artistes qui ont exposé ensemble sans constituer un groupe formel. A travers une analyse structurale des thèmes issus de l'ensemble des entretiens et de ... [more ▼]

Le texte s'appuie sur des entretiens avec huit artistes qui ont exposé ensemble sans constituer un groupe formel. A travers une analyse structurale des thèmes issus de l'ensemble des entretiens et de leurs interrelations, le texte essaye de définir l'identité du groupe autour d'un certain nombre d'antinomies. [less ▲]

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See detailThe impact of reimbursement criteria on the appropriateness of 'statin' prescribing.
Autier, Philippe; Creplet, Jean; Vansant, Greet et al

in European Journal of Cardiovascular Prevention & Rehabilitation (2003), 10(6), 456-62

BACKGROUND: In Belgium, regulations restrict the reimbursement of statins to patients with total serum cholesterol above 250 mg/dl (6.41 mmol/l) after a three-month lipid-lowering diet. We investigated ... [more ▼]

BACKGROUND: In Belgium, regulations restrict the reimbursement of statins to patients with total serum cholesterol above 250 mg/dl (6.41 mmol/l) after a three-month lipid-lowering diet. We investigated the possible impact of these regulations on characteristics of Belgian patients receiving a lipid-lowering drug. DESIGN: From 1998 to 2000, standard questionnaires on coronary risk factors and treatments with lipid-lowering drugs were completed by 301 GPs sampled at random in the 11 Belgian Provinces. Questionnaires had to be completed for 18 consecutive patients 35 years old or more attending GPs' practices, irrespective of the underlying motive for attendance. RESULTS: Of the 5511 patients included in the study, 1519 (28%) had established coronary disease or diabetes mellitus, or > or = 2 non-cholesterol coronary risk factors. Most (70%) of these patients were not treated with a lipid-lowering drug. Only 22% of patients with established coronary disease, 10% of patients with diabetes mellitus and 9% of patients with > or = 2 coronary risk factors were treated with a statin. Fifty-nine percent of fibrate users and 50% of statin users had a pre-treatment cholesterol level above 250 mg/dl, but had no or only one non-cholesterol coronary risk factor. CONCLUSIONS: In Belgium, the majority of patients at higher risk of coronary event do not benefit from lipid-lowering drugs, particularly the statins. In contrast, one of two statin users and three of five fibrate users should probably not receive the drug prescribed. Regulation based on blood cholesterol level encourages the overlooking of other risk factors relevant for selecting patients having the greatest chance to benefit from statin treatment. [less ▲]

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See detailLes partis et la politique de défense
Dumoulin, André ULg

in Courrier hebdomadaire du CRISP (2003), 1798

Le présent Courrier hebdomadaire a pour objet l’analyse de l’intégration des questions de défense nationale et européenne au sein des préoccupations des partis politiques belges. Cette analyse comprend ... [more ▼]

Le présent Courrier hebdomadaire a pour objet l’analyse de l’intégration des questions de défense nationale et européenne au sein des préoccupations des partis politiques belges. Cette analyse comprend deux volets. Le premier examine les activités parlementaires en rapport avec les affaires militaires belges et européennes. Nous procéderons, plus précisément, à l’analyse des travaux conduits par la commission de la Défense nationale de la Chambre au cours de la dernière législature. Le second repose sur un examen des propositions relatives à la défense belge et européenne (politique européenne de sécurité et de défense) au sein des programmes politiques des partis représentés au Parlement fédéral dans la perspective des élections législatives du 18 mai 2003. L’objet de cette étude est de déceler les lieux de convergences et de divergences entre les formations politiques du pays (mise à l’agenda politique des partis, définition des priorités, visions prospectives, etc.). Il s’est agi, plus exactement, de relever les principales thématiques abordées par les partis en matière de défense nationale et européenne. En effet, à l’instar d’un grand nombre de compétences régaliennes, le secteur de la défense constitue un lieu d’intersection de multiples problématiques de type économique, social, budgétaire, environnemental et politique au sens propre du terme. En outre, le concept même de défense peut être décliné en une variété de sous-thèmes qui lui sont constitutifs (structure de forces, choix des systèmes d’armes et des matériels, définition des tâches et missions, statut du personnel, intégration au sein des enceintes multilatérales, spécialisation,…). Il est, enfin, utile de préciser que cette étude ne prend en compte ni les divers documents internes (à diffusion publique ou restreinte), ni les notes de travail produites par les partis, ni les études spécialisées sur la place de la Belgique en matière de sécurité européenne. Ce choix a été opéré à dessein. Il s’agit, en effet, de s’intéresser aux seules dispositions programmatiques spécifiquement adressées à l’ensemble des concitoyens dans le cadre de travaux parlementaires et d’un choix électoral donné. Aussi, cette étude ne peut être assimilée à un bilan exhaustif des positions et conceptions des partis en la matière ; il est plutôt un indicateur des messages que les formations politiques entendent transmettre aux citoyens [less ▲]

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See detailOverexpression of the platelet P2X1 ion channel.in transgenic mice generates a novel prothrombotic phenotype.
Oury, Cécile ULg; Kuijpers, Marijke; Toth-Zsamboki, Emese et al

in Journal of Thrombosis and Haemostasis [=JTH] (2003)

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See detailP2X1-induced activation of Ca2+ calmodulin leads to myosin light chain and ERK2 phosphorylation in human platelets.
Toth-Zsamboki, Emese; Oury, Cécile ULg; De Vos, Rita et al

in Journal of Thrombosis and Haemostasis [=JTH] (2003)

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See detailGlycoprotein Ib and integrin alphaIIbbeta3 contribute to GPVI-dependent vWF-collagen induced thrombus formation under flow
Kuijpers, Marijke; Oury, Cécile ULg; Schulte, V. et al

in Journal of Thrombosis and Haemostasis [=JTH] (2003)

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See detailWhat's alternative about alternative food networks?
Whatmore, Sarah; Stassart, Pierre M ULg; Rentjes, Henk

in Environment & Planning A (2003), 35

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See detailNombres et jeux enfantins
Lempereur, Françoise ULg

in Enquêtes du Musée de la Vie Wallonne (2003), XX

Children learn to count at school and also by singing and playing traditional games. This paper goes through the traditional Walloon repertory and shows how it fits the childish rhythmics defined by ... [more ▼]

Children learn to count at school and also by singing and playing traditional games. This paper goes through the traditional Walloon repertory and shows how it fits the childish rhythmics defined by ethnomusicologist Constantin Brailoiu [less ▲]

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See detailRepresentation of the « watermanship » and self-perception of swimming level in elementary school children
Cloes, Marc ULg; Noël, Dominique; Michel, Vincent et al

in Sena Lino, L.; Trindade Ornelas, R.; Carreiro da Costa, F. (Eds.) et al Innovation and New Technologies in Physical Education, Sport, Research and/on Teacher and Coach Preparation (2003)

Swimming is one of the most common sports activities in Walloon region as in many countries (Bodson, 1997). According to Boullé (1999) swimming courses concern various sectors of practice: the awakening ... [more ▼]

Swimming is one of the most common sports activities in Walloon region as in many countries (Bodson, 1997). According to Boullé (1999) swimming courses concern various sectors of practice: the awakening (blooming of the person), the discovery (educational purposes), the improvement (to pass a test or to carry out a performance), the leisure and maintenance (relaxation or improvement of the form and health), the practice in natural environment. Additionally, swimming is a prerequisite to other sports and cultural activities. Considering its place in individual safety, education, health and leisure, its importance in child and youth development is unchallenged. [less ▲]

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See detailRegards sur les politiques d'insertion des CPAS de la Région wallonne
Jacquemain, Marc ULg; Lemaître, Sébastien

Report (2003)

Le rapport synthétise les chiffres les plus significatifs qui permettent de caractériser la politique d'insertion professionnelle des CPAS. Il met en regard les commentaires issus des entretiens ... [more ▼]

Le rapport synthétise les chiffres les plus significatifs qui permettent de caractériser la politique d'insertion professionnelle des CPAS. Il met en regard les commentaires issus des entretiens qualitatifs réalisés dans le cadre de la recherche [less ▲]

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See detailValidation of ENVISAT-1 Level-2 Products Related to Lower Atmosphere O3 and NOy Chemistry by a FTIR Quasi-global Network
De Mazière, Martine; Coosemans, Thierry; Barret, Brice et al

in Proceedings of Envisat Validation Workshop, Frascati, Italy, December 9-13, 2002, ESA SP-531, 2003 (2003)

A coordinated action involving eleven stations of the ground -based Network for Detection of Stratospheric Change (NDSC) equipped with Fourier transform infrared (FTIR) instruments was conducted to ... [more ▼]

A coordinated action involving eleven stations of the ground -based Network for Detection of Stratospheric Change (NDSC) equipped with Fourier transform infrared (FTIR) instruments was conducted to contribute to the validation of the three atmospheric chemistry instruments onboard ENVISAT, that are MIPAS, SCIAMACHY and GOMOS. The target products for validation are total columns of O3, CH4, CO and some important NOy species (NO2, HNO3, NO) and the source gas N2O. Together the eleven stations cover the latitudes between 79 °N and 78°S, including polar, mid-latitude and subtropical and tropical locations. The goal is to contribute to the assessment of the data quality of the aforementioned ENVISAT instruments, from a quasi -global perspective. The period of intensive ground-based data collection for the benefit of the ENVISAT Validation Commissioning Phase that is dealt with in the present paper is July 15 to December 1, 2002. The FTIR network involved collected a data set corresponding to an equivalent of approximately 400 days of measurements; about three quarter of the data have already been submitted to the ENVISAT Calval database and are included in the present work. Unfortunately, the distribution of ENVISAT data has been slow and limited. Only a limited number of coincidences has been found for making data inter -comparisons. Therefore, the conclusions drawn in this paper are very preliminary and cover only a limited set of data products from SCIAMACHY only. Our findings up to now concerning the above mentioned target products are the following: (1) SCIAMACHY near infrared operational products (CO, CH4, N 2O) have no scientific meaning yet, (2), the operational SCIAMACHY total vertical O3 column product derived in the ultraviolet window has undergone some improvements with changing versions of the processor(s) but it still underestimates the column by about 5 – 10 %, (3), the operational SCIAMACHY total vertical O3 column product derived in the visible window is unrealistically large, and (4), the operational NO2 total column product from SCIAMACHY seems to largely overestimate the real column, but very few coincidences and large dispersions of the data do inhibit any further conclusion at present. In a next phase, the same ground-based correlative data set will be exploited to further validate the ENVISAT data as soon as more and reprocessed data will be distributed. [less ▲]

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