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Peer Reviewed
See detailEvaluation du système de financement des journées hospitalières en fonction des pathologies
Fecher-Bourgeois, Fabienne ULg; Gillet, Pierre ULg

in Bulletin des Résumés d'Informations Hospitalières / Ministère des affaires sociales, de la santé publique et de l'environnement (1999), 16(Janvier/février/mars 1999),

Detailed reference viewed: 22 (6 ULg)
See detailL’évaluation du système de formation L’évaluation de la formation professionnelle en Europe ; observations à partir de quelques pays européens
Husson, Jean-François ULg

in Pauliat, Hélène (Ed.) La formation en Europe : entre performance et concurrence ? (2010)

Detailed reference viewed: 15 (1 ULg)
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See detailL’évaluation du système de formation
Husson, Jean-François ULg

Conference (2007, November 16)

This contribution was an overview of various evaluation schemes regarding training in various European countires (mainly Britain, The Netherlands and Belgium).

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Peer Reviewed
See detailEvaluation du temps de mélange à partir de la distribution temporelle du libre parcours dans une salle
Billon, Alexis ULg; Dirix, Simon; Embrechts, Jean-Jacques ULg

in Actes du 10ème Congrès Français d'Acoustique (2010, April)

Dans un espace clos où se mélangent les nombreuses ondes réfléchies, diffusées et diffractées par les surfaces, la propagation de l’énergie sonore peut être décomposée en deux étapes: tout d’abord, un ... [more ▼]

Dans un espace clos où se mélangent les nombreuses ondes réfléchies, diffusées et diffractées par les surfaces, la propagation de l’énergie sonore peut être décomposée en deux étapes: tout d’abord, un processus déterministe pour lequel il est possible d’identifier individuellement chaque contribution, suivi d’un processus stochastique pour lequel les contributions doivent être globalisées et vues comme un processus quasi-aléatoire. Le seuil de transition entre les deux comportements est matérialisé dans l’échogramme par le temps de mélange. Dans cette étude, le temps de mélange est analysé en regard de la distribution temporelle du libre parcours. Celle-ci est obtenue numériquement à l’aide du programme de tir de rayons large bande Salrev. Dans un premier temps, le mélange est identifié au travers du caractère asymptotique de cette distribution. Le temps de mélange est alors défini comme la durée (mesurée à partir de l’instant d’émission au départ de la source) nécessaire pour atteindre ce comportement asymptotique. A partir de cette définition du temps de mélange sont étudiées les influences de divers paramètres géométriques et acoustiques. Ensuite, trois applications pour des salles de concert sont réalisées. Cette étude montre que les valeurs obtenues pour le temps de mélange convergent vers celles observées expérimentalement, à condition que les parois de la salle soient suffisamment diffusantes. [less ▲]

Detailed reference viewed: 62 (13 ULg)
See detailEvaluation du troisième Programme de Gestion Durable de l'Azote en agriculture. Recommandations en matière de règlementations et de recherches scientifiques
Vandenberghe, Christophe ULg; Destain, Jean-Pierre ULg; Beckers, Yves ULg et al

in Vandenberghe, Christophe; Colinet, Gilles; Destain, Jean-Pierre (Eds.) et al 2ème Atelier Nitrate - Eau. Evaluation du Programme de Gestion Durable de l'Azote (2013)

In accordance with the Nitrates Directive, the third “Durable Nitrogen Management Plan” (PGDA) will be soon reviewed in Wallonia (Belgium). The second “Nitrate – Water” workshop took place between 28th ... [more ▼]

In accordance with the Nitrates Directive, the third “Durable Nitrogen Management Plan” (PGDA) will be soon reviewed in Wallonia (Belgium). The second “Nitrate – Water” workshop took place between 28th May and 1st June 2012. The workshop was attended by both Belgian scientists (Université catholique de Louvain - UCL, Walloon Agricultural Research Center CRA-W, Université de Liège - ULg, Gembloux Agro-Bio Tech) and French scientists (National Institute for Agricultural Research - INRA). In the light of the results of experiments presented by scientists at this workshop, modifications to the PGDA are now recommended. These concern organic and mineral nitrogen fertilization for crops and meadows; catch crops; soil nitrate-nitrogen residue limitation in autumn, at the start of the nitrate leaching period; the management of meadow ploughing and a modification of the dairy cow standard for nitrogen production. [less ▲]

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See detailEvaluation échocardiographique de la fonction cardiaque chez le cheval en coliques
Borde, Laura ULg

Doctoral thesis (2013)

Endotoxemia is a common complication of colic in adult horses and its outcome is mainly related to cardiovascular status. Endotoxic shock, like septic shock, involves hypovolemic, cardiogenic and ... [more ▼]

Endotoxemia is a common complication of colic in adult horses and its outcome is mainly related to cardiovascular status. Endotoxic shock, like septic shock, involves hypovolemic, cardiogenic and distributive components leading to tissue hypoperfusion with a high risk for multiple organ failure and an elevated mortality rate in equine and human intensive care units. Via the release of pro-inflammatory mediators, endotoxins induce a fall in systemic vascular resistance (SVR) and a drop of cardiac output (CO) resulting both from reduction in venous return and myocardial depression. First, CO is preserved thanks to a compensatory vasoconstriction and an increase in heart rate (HR), myocardial contractility and venous return. However, a loss of vascular responsiveness to catecholamines and a myocardial depression finally result in a drop of CO and SVR with a progressive hypotension despite a persistent tachycardia. The time point during the course of septic shock when hemodynamic monitoring is used has been proven to influence outcome, allowing early goal-directed therapy in humans. Unfortunately, hemodynamic monitoring in conscious horses is often limited due to animal size, working conditions and lack of patient cooperation. Therefore, such as in human patients, echocardiography could provide useful non invasive information about stroke volume (SV) and CO, systolic and diastolic function as well as fluid status. In human septic shock patients, this technique has emphasised a myocardial depression with both diastolic and systolic dysfunction reversible in survivors. Previous studies in horses focused on quantitative evaluation of hemodynamic parameters after an experimental endotoxin challenge. However, LV function had not been reported in naturally-occurring endotoxemia in horses. The purpose of the first prospective study was to assess the impact of clinically-occuring endotoxic shock on echocardiographic indices of LV systolic function in horses. Fifty horses admitted in clinic on emergency for colic were submitted to an echocardiographic exam on admission. A shock score from 1 to 4 was established for each horse based on clinical evaluation, non invasive systolic blood pressure and blood tests measurements. LV echocardiographic parameters were compared between the 4 groups according to the shock score (SS) (SS1: no or discrete signs of shock, n=11; SS2 : mild, n=17; SS3: moderate, n=12; SS4: severe, n=10) using a multivariable analysis. Significance was set at p < 0.05. Stroke volume, stroke index (SI), ejection time (ET), ejection time index corrected for HR (ETI), aortic velocity time integral (AoVTI), aortic flow acceleration time (TTP) and deceleration time (DTAo) were significantly lower, whereas aortic flow acceleration rate (dv/dtAo) was significantly higher in shocked horses than in SS1. CO was not significantly different between groups. Even if those results were difficult to interpret because of the shock-induced changes in loading conditions of the heart, they suggested that alterations in some indicators of systolic function can be quantified by Doppler echocardiography in horses with colic-induced endotoxemic shock. The aim of the second study was to non invasively assess the impact of colic-related endotoxic shock on equine diastolic cardiac function. Sixty-eight horses admitted in clinic on emergency with colic were included in this study. A similar SS was established for each horse. LV echocardiographic parameters were compared between the 4 groups according to the SS (SS1 n=14; SS2 n=16; SS3 n=27; SS4 n=12) using a multivariable analysis. Significance was set at p < 0.05. Deceleration rate of peak early LV filling velocity, peak late LV filling velocity and E/Em (peak early LV filling velocity (E) to peak early myocardial velocity (Em) ratio) were significantly higher whereas time to Em onset was significantly lower in high shock score groups compared with horses with no or mild signs of shock. The results of this second study could suggest a diastolic dysfunction with a rise of LV filling pressure ocurring with endotoxic shock in horses. Since E/Em has shown to be a very reliable predictor of mortality in human with septic shock, the results of this second study warranted further investigations. To assess the prognostic value of echocardiographic parameters of LV function in horses with endotoxic shock, 41 horses admitted for colic with clinical evidence of systemic inflammatory response syndrome associated to hyperlactatemia or hypotension underwent echocardiographic examination on admission. LV echocardiographic parameters were compared between nonsurvivors (n=29) and horses that survived to discharge (n=12). With comparable heart rate and LV preload estimate, LV SV, AoVTI, DTAo, ET and ETI of aortic flow and Em were lower in the nonsurviving than in the surviving horses while pre-ejection period to ejection time ratio (PEP/ET) of Doppler aortic flow and E/Em ratio were higher (p<0.05). A cut-off value of 0.26 for PEP/ET predicted mortality with 100% sensitivity and 42% specificity (area under the receiver operating characteristic curve (AUC): 0.71), whereas a cut-off value of 2.67 for E/Em predicted mortality with 100% sensitivity and 83% specificity (AUC: 0.89). The results of this third study suggested that echocardiography may provide prognostic information in colic horses with clinical evidence of endotoxic shock. Especially, PEP/ET and E/Em could be useful markers of systolic and diastolic dysfunction, respectively, to detect horses with a high risk of death requiring more intensive cardiovascular monitoring as it has been reported in human patients with septic shock. Finally, to assess LV function after preload restoration in colic horses, 5 horses were followed echocardiographically from admission to at least 24 hours after colic surgery in a preliminary study. Systolic dysfunction was detected in 4/5 horses and diastolic dysfunction assumed in 2/5 horses and suspected in the 3 other horses during hospitalisation. Moreover, echocardiography provided useful diagnosis informations about hemodynamic and fluid status suggesting that ultrasonographic monitoring of cardiovascular function could be of interest in equine intensive care. 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Detailed reference viewed: 31 (6 ULg)
See detailL'évaluation écologique des démences
Meulemans, Thierry ULg

in Eustache, Francis (Ed.) Neuropsychologie clinique des démences: Evaluations et prises en charge (1995)

Detailed reference viewed: 55 (2 ULg)
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Peer Reviewed
See detailEvaluation économique de la campagne de dépistage de l'ostéoporose menée en Province de Liège avec le concours de Liège Province Santé
Hiligsmann, Mickaël ULg; Bruyère, Olivier ULg; Pire, Georges et al

in Revue Médicale de Liège (2008), 63(10), 588-94

The Province of Liege has conducted an osteoporosis screening strategy for women aged 50 to 69 years. The objective of this study is to investigate the economic characteristics of the screening strategy ... [more ▼]

The Province of Liege has conducted an osteoporosis screening strategy for women aged 50 to 69 years. The objective of this study is to investigate the economic characteristics of the screening strategy and to assess its cost-effectiveness, using a Markov microsimulation model. Our analyses suggest that the osteoporosis screening strategy is efficient if the medical community and the patients fulfill the recommendations of the Province of Liege health authorities and if persistence is optimized. Therefore, bone mineral density (BMD) measurement should be performed in all individuals with positive ultrasound screening; individuals having a positive BMD diagnosis should be treated and adherence to therapy should be increased. Furthermore, to improve the efficiency of the screening strategy, we suggest to target screening on women with one or more clinical risk factors, or on women aged 65 years and older. [less ▲]

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See detailEvaluation économique de la prise en charge de l'ostéoporose
Hiligsmann, Mickaël ULg

Doctoral thesis (2010)

Health economic evaluation is a method for evaluating the value for money of medical technologies by comparing alternative options in terms of their costs and consequences. This method is frequently used ... [more ▼]

Health economic evaluation is a method for evaluating the value for money of medical technologies by comparing alternative options in terms of their costs and consequences. This method is frequently used to inform decision makers about how to allocate scarce resources. Economic evaluation has become increasingly important nowadays, with the increasing health care expenditures, the rapid introduction of new medical technologies, and the extending role of economic evaluations in health care decision making. Osteoporosis becomes an increasingly major health problem around the world. It is a disease characterized by low bone mass with microarchitectural disruption and increased skeletal fragility, leading to increased fracture risk. Osteoporotic fractures result in significant morbidity and mortality, and impose a huge financial burden on health care systems. Financial resources are used to prevent, diagnose and treat osteoporosis. These resources must be allocated in an efficient manner. The general purpose of this thesis is therefore to contribute to the economic evaluation of osteoporosis management. More specifically, this thesis is divided into four parts. The first part is devoted to the development and the validation of a new Markov microsimulation model. This modelling approach accurately encompasses the complexity of osteoporosis, increasing the reliability of the results. The second part estimates the cost-effectiveness of osteoporosis screening strategies and provides recommendations for their implementation. The third part estimates the cost-effectiveness of new anti-osteoporotic therapies (strontium ranelate and denosumab). It is important to assess whether new drugs represent a good value for money compared to the relevant alternatives. Finally, the last part of the thesis investigates the clinical and economic implications of non-adherence to osteoporosis medications. This thesis provides new information on the cost-effectiveness of osteoporosis management, which may be useful to inform decisions makers about resources allocation for patients with osteoporosis. The results may also be used to raise awareness among public health authorities, the medical profession and the general population regarding the burden of osteoporosis, the importance of screening and adequate follow-up, as well as to the role of economic evaluation in health care decision making. [less ▲]

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Peer Reviewed
See detailL'évaluation en apprentissage à distance : quelle diversité et quelle valeur ajoutée... pour quelle régulation? Illustrations au travers de cours existants
Poumay, Marianne ULg; Georges, François ULg

in Evaluation: entre efficacité et équité (2003)

Le présent article illustre la valeur ajoutée de l'évaluation en ligne ou à distance, au travers d'exemples concrets, distinguant plusieurs méthodes d'évaluation des étudiants et soulignant certains de ... [more ▼]

Le présent article illustre la valeur ajoutée de l'évaluation en ligne ou à distance, au travers d'exemples concrets, distinguant plusieurs méthodes d'évaluation des étudiants et soulignant certains de leurs avantages. Il aborde ensuite le problème du suivi des traces permettant d'améliorer les cours existants : quelles traces conserver, quelle visibilité, notamment sur les résultats du testing en ligne... avec quelles précautions et pour quels usages? [less ▲]

Detailed reference viewed: 30 (6 ULg)
See detailL'évaluation en formation
De Landsheere, Gilbert ULg

in Français dans le Monde [=FDLM] : Revue Internationale et Francophone des Professeurs de Français (1975), mai-juin(113), 32-34

Progress in teacher education can be assured only by integrating instruction, practical experience and evaluation. The evaluation must be on the psychological level, on the level of competence, and on the ... [more ▼]

Progress in teacher education can be assured only by integrating instruction, practical experience and evaluation. The evaluation must be on the psychological level, on the level of competence, and on the pedagogical level. (Text is in French.) (AM) [less ▲]

Detailed reference viewed: 32 (1 ULg)
See detail"L'évaluation en langues : enjeux, principes, risques"
Defays, Jean-Marc ULg

Conference given outside the academic context (2009)

Detailed reference viewed: 45 (8 ULg)
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See detailEvaluation environnementale de l'agriculture
Debouche, Charles ULg

Scientific conference (2000, March 03)

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See detailEvaluation environnementale de l'agriculture
Debouche, Charles ULg

in Destatte, Philippe (Ed.) Evaluation, prospective et développement régional (2001)

Detailed reference viewed: 6 (1 ULg)