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See detailClimatologie : analyse des nuages vus de l'espace
Erpicum, Michel ULg

in Wilmet, Jules (Ed.) Télédétection satellitaire (1987)

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See detailLa climatologie
Erpicum, Michel ULg; Alexandre, Jean ULg

in Bulletin de la Société Géographique de Liège (2003), 43(2003), 79-88

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See detailClimatology
Erpicum, Michel ULg

in Bulletin de la Société Belge d'Etudes Géographiques = Tijdschrift van de Belgische Vereniging voor Aardrijkskundige Studies (1996), 64 (2)

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See detailClimatology and circulation of the Azores-Canary region by Data-Interpolation Variational Analysis
Troupin, Charles ULg; Machín, Francisco; Ouberdous, Mohamed ULg et al

Poster (2008, June 02)

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See detailClimatology, Fluvial Hydrology and Tropical Geomorphology at the University of Liège
Alexandre, Jean ULg; Erpicum, Michel ULg; Petit, François ULg et al

in Bulletin de la Société Belge d'Etudes Géographiques = Tijdschrift van de Belgische Vereniging voor Aardrijkskundige Studies (1988), 57(1), 91-107

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See detailClimbing back up the nucleophilic reactivity scale. Use of cyclosila derivatives as reactivity boosters in anionic polymerization
Zundel, Thomas; Baran, Janusz; Mazurek, Mieczyslaw et al

in Macromolecules (1998), 31(9), 2724-2730

It has been well-known for a very long time that, for anionic homo-polymerization or sequential copolymerization to occur, it is mandatory that the relative nucleophilic reactivity of the initiating ... [more ▼]

It has been well-known for a very long time that, for anionic homo-polymerization or sequential copolymerization to occur, it is mandatory that the relative nucleophilic reactivity of the initiating species be equal to or larger than the one of the (co)monomer. However, the results described in this paper demonstrate that such a classic rule can be circumvented in some cases. Indeed, it is reported for the first time that potassium trimethylsilanolate, and “living” potassium poly(ethylene oxide), both of which are unable to initiate styrene or methyl methacrylate (MMA) polymerization, can be converted from oxyanionic active ends to silyl anionic ones by reacting with cyclic disila derivatives, so allowing the homopolymerization and sequential (co)polymerization of styrene or MMA to proceed in a controlled manner. [less ▲]

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See detailClimwat 2.0 & Cropwat 8.0
Debauche, Olivier ULg; Tadrist, Nassima ULg

Learning material (2012)

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See detailClinal differentiation during invasion: Senecio inaequidens (Asteraceae) along altitudinal gradients in Europe
Monty, Arnaud ULg; Mahy, Grégory ULg

in Oecologia (2009), 159(2), 305-315

The dynamics of plant population differentiation may be integral in predicting aspects of introduced species invasion. In the present study, we tested the hypothesis that European populations of Senecio ... [more ▼]

The dynamics of plant population differentiation may be integral in predicting aspects of introduced species invasion. In the present study, we tested the hypothesis that European populations of Senecio inaequidens (Asteraceae), an invasive species with South African origins, differentiated during migration from two independent introduction sites into divergent altitudinal and climatic zones. We carried out 2 years of common garden experiments with eight populations sampled from Belgian and ten populations from French altitudinal transects. The Belgian transect followed a temperature and precipitation gradient. A temperature and summer drought gradient characterized the French transect. We evaluated differentiation and clinal variation in plants germinated from field-collected seed using the following traits: days to germination, days to flowering, height at maturity, final plant height and aboveground biomass. Results showed that S. inaequidens populations differentiated in growth traits during invasion. During the 1st year of sampling, the results indicated clinal variation for growth traits along both the Belgium and French altitudinal transects. Data from the 2nd year of study demonstrated that with increasing altitude, a reduction in three growth traits, including plant height at maturity, final plant height and aboveground biomass, was detected along the French transect, but no longer along the Belgian one. Phenological traits did not exhibit a clear clinal variation along altitudinal transects. The possible evolutionary causes for the observed differentiation are discussed. [less ▲]

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See detailClinal differentiation during invasion: Senecio inaequidens (Asteraceae) along altitudinal gradients in Europe.
Monty, Arnaud ULg; Mahy, Grégory ULg

Poster (2009)

Plant population differentiation may play a role in decreasing the ability to predict whether, where, and when an introduced species will invade. However, few studies have addressed the level of genetic ... [more ▼]

Plant population differentiation may play a role in decreasing the ability to predict whether, where, and when an introduced species will invade. However, few studies have addressed the level of genetic change an alien species may undergo during range expansion, e.g. in response to climatic variation with altitude. In the present study, we tested the hypothesis that invasive populations of Senecio inaequidens (Asteraceae) differentiated during migration from two independent introduction sites into divergent altitudinal and climatic zones. We carried out two years of common garden experiments with eight populations from a Belgian altitudinal transect and ten populations from similar French transect. Climatic analysis revealed that the Belgian transect followed a temperature and precipitation gradient. A temperature and summer drought gradient characterized the French study site. We evaluated differentiation and clinal variation in the following characters: days to germination, days to flowering, height at maturity, final plant height and aboveground biomass. Results showed that S. inaequidens populations differentiated in growth traits during invasion. First year of experiment, regressing population growth trait means against source population altitude indicated the presence of clinal variation along both transects. Second year, similar results were found along the French transect, i.e. a reduction in height at maturity, plant height and aboveground biomass with increasing altitude. Including seed mass as a covariate did not change the outcome of the analysis. The possible evolutionary causes for the differentiation observed are discussed. [less ▲]

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See detailClinal differentiation during invasion: Senecio inaequidens (Asteraceae) along altitudinal gradients in Europe.
Monty, Arnaud ULg; Mahy, Grégory ULg

Poster (2008)

Plant population differentiation may play a role in decreasing the ability to predict whether, where, and when an introduced species will invade. However, few studies have addressed the level of genetic ... [more ▼]

Plant population differentiation may play a role in decreasing the ability to predict whether, where, and when an introduced species will invade. However, few studies have addressed the level of genetic change an alien species may undergo during range expansion, e.g. in response to climatic variation with altitude. In the present study, we tested the hypothesis that invasive populations of Senecio inaequidens (Asteraceae) differentiated during migration from two independent introduction sites into divergent altitudinal and climatic zones. We carried out two years of common garden experiments with eight populations from a Belgian altitudinal transect and ten populations from similar French transect. Climatic analysis revealed that the Belgian transect followed a temperature and precipitation gradient. A temperature and summer drought gradient characterized the French study site. We evaluated differentiation and clinal variation in the following characters: days to germination, days to flowering, height at maturity, final plant height and aboveground biomass. Results showed that S. inaequidens populations differentiated in growth traits during invasion. First year of experiment, regressing population growth trait means against source population altitude indicated the presence of clinal variation along both transects. Second year, similar results were found along the French transect, i.e. a reduction in height at maturity, plant height and aboveground biomass with increasing altitude. Including seed mass as a covariate did not change the outcome of the analysis. The possible evolutionary causes for the differentiation observed are discussed. [less ▲]

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See detailClinching joining system: validation of numerical models
Pietrapertosa, C.; Zhang, Lihong ULg; Habraken, Anne ULg et al

in Brucato, V. (Ed.) Proceedings of the 6th International ESAFORM Conference on Material Forming (2003)

The clinching process, also known as “press joining”, is a mechanical joining technique for sheet metal. Its basic principle is to clamp together several metal sheets by an impact extrusion between a ... [more ▼]

The clinching process, also known as “press joining”, is a mechanical joining technique for sheet metal. Its basic principle is to clamp together several metal sheets by an impact extrusion between a punch and a die. The joint is formed by a localized cold plastic deformation. Forming is used as a joining method. Within the context of this research, University of Liège is developing numerical models, with the FEM code LAGAMINE, that simulate the clinching process. On the other hand, shear tests on simple joints with one or two clinches were realized and their behaviour is reproduced numerically with LAGAMINE. This work opens the way to the analytical formulation of the behaviour of clinched joints. The article will focus on comparisons between experiments and numerical simulations. First, the identification of model parameters will be explained. Then, the predicted failure modes will be analysed by comparison with the xperiments. [less ▲]

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See detailThe clinic of anger : from psychopathology to the adequacy of punishment
Philippe, Paule ULg; Scholl, Jean-Marc ULg

Conference (2007, August 27)

Not every fit of anger is good. But some are not to be avoided either. And fits of anger have not all the same aetiology. The authors try to understand the various psychopathological and\or ... [more ▼]

Not every fit of anger is good. But some are not to be avoided either. And fits of anger have not all the same aetiology. The authors try to understand the various psychopathological and\or neuropsychological mechanisms that could explain anger whether in babies, children, teenagers or adults. Anger can arise from the feeling of being overwhelmed – coming by an overflow of the possibilities of management of the ego – (¬¬as a consequence of excessive intake of sensory or emotional information, of hypersensitivity…), from an unstable self-image (see-saw from a positive self-image to a negative one), from an overvalued self-image (narcissistic or megalomaniac personality) or from an undervalued self-image (depressive disorders), from a "Uneasiness in the Situation of Being Alone" (search for link), from great impulsiveness (15% of ADHD), from the incomprehension of the conversational partner (deficit of interpersonal perceptions); anger can also arise from projections (paranoid ones or others), from incomprehension (problems of intelligence, language, culture..) and\or from the refusal of the limits (well or inappropriately imposed, always the same ones or variable). Anger can sometimes be a warning sign of maltreatment disorder that has to be listened to. Considering these various mechanisms, it seems important to reflect on how to adapt punishments: corporal punishment? shaming? placing at a distance? restraining? isolation? task of repairing? … Their purpose must be to help the child to have better control of his/her behaviour and a better self-image. This reflection comes within the context of a psychotherapeutic approach with the parent’s cooperation and\or cooperation of the people in charge of the child. The added value of medication is also considered (methylphenidate, antidepressant, atypical antipsychotic drugs, mood stabilisers…). An appropriate treatment provides child as well as home environment with relief and so allows moving on to other problematic components of the situation in the psychotherapeutic approach. Toutes les colères ne sont pas bonnes. Mais toutes les colères ne sont pas non plus à éviter. Et toutes les colères n’ont pas les mêmes étiologies. Les auteurs cherchent à comprendre les différents mécanismes psychopathologiques et/ou neuropsychologiques qui pourraient sous-tendre les colères, que ce soit chez les bébés, les enfants, les adolescents ou les adultes. Les colères peuvent naître d’un débordement des possibilités de la gestion du moi (suite à un apport excessif d’informations sensorielles ou émotionnelles, d’une hypersensibilité,…), d’une image de soi instable (bascule d’une image positive vers une image négative de soi) ou sur-valorisée (trait de personnalité narcissique, trait mégalomaniaque), ou dévalorisée (image dépressive de soi), d’un "Mal-être en situation d’être seul" (recherche d’un lien), d’une grande impulsivité (15 % des ADHD…), d’une incompréhension de l’interlocuteur (déficit des perceptions intersubjectives), ou encore naître de projections (paranoïdes ou autres), de l’incompréhension (problème d’intelligence, de langue, de culture…) et/ou du refus des limites (bien ou mal posées, toujours les mêmes ou changeantes…). Et elles sont parfois un signal d’alarme de maltraitance qu’il faut aussi entendre. Face à ces différents mécanismes, il paraît important de réfléchir à comment ajuster les punitions: punition physique ? humiliation ? répression ? mise à distance? contention? isolement? tâche de réparation, de remise en lien ?… Elles chercheront à aider l’enfant à garder un meilleur contrôle de son comportement et une meilleure image de lui. Cette réflexion s’inscrit dans une approche psychothérapeutique avec la collaboration des parents et/ou des responsables de l’enfant. L’intérêt d’une médication ajoutée (méthylphénidate, antidépresseurs, antipsychotiques atypiques, régulateurs de l’humeur….) est également envisagé. Une prise en charge bien adaptée apporte alors un apaisement tant pour l’enfant que pour le milieu de vie et permet ensuite d’aborder en psychothérapie d’autres composantes problématiques de la situation. [less ▲]

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See detailClinical Activity and Benefit of Irinotecan (CPT-11) in Patients with Colorectal Cancer Truly Resistant to 5-Fluorouracil (5-FU)
Van Cutsem, Eric; Cunningham, D.; Ten Bokkel Huinink, W. W. et al

in European Journal of Cancer (1999), 35

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See detailClinical added-value of 18FDG PET in neuroendocrine-merkel cell carcinoma
Belhocine, Tarik; Pierard, Gérald ULg; Frühling, Janos et al

in Oncology Reports (2006), 16(2), 347-352

Merkel cell carcinoma (MCC) is a rare and highly malignant skin cancer with neuroendocrine differentiation. We studied the potential value of 18FDG PET in the management of MCC. Eleven patients with MCC ... [more ▼]

Merkel cell carcinoma (MCC) is a rare and highly malignant skin cancer with neuroendocrine differentiation. We studied the potential value of 18FDG PET in the management of MCC. Eleven patients with MCC were examined by 18FDG PET and PET-CT for staging purpose (n=4) or for detection of recurrence (n=7). Qualitative and quantitative interpretation of PET studies was performed routinely. 18FDG PET observations were compared to clinical and radiological findings. In 6 patients, PET findings were also compared to histology. In 7 patients, the 18FDG tumor uptake was compared to the MCC proliferative activity expressed by the Ki-67 index. 18FDG PET was contributive in 10/11 MCC patients. In 7 patients, 18FDG PET detected focal lesions or a disseminated stage of the disease including dermal, nodal and visceral metastases. In 3 patients, a normal 18FDG PET confirmed complete remission of disease. Most MCC patients exhibited highly 18FDG-avid sites suggestive of increased glucose metabolism. This imaging pattern was related to a high proliferative activity (Ki-67 index >50%). In 1 patient with a weakly proliferative nodal MCC (Ki-67<10%), a false negative result was yielded by metabolic imaging. In 4/11 patients, 18FDG PET revealed an unsuspected second neoplasm in addition to MCC. It is concluded that whole-body 18FDG PET may be useful in the management of MCC patients. However, a normal 18FDG PET aspect cannot rule out MCC with low proliferative activity. [less ▲]

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See detailClinical and angiographic analysis with a Cobalt Alloy Coronary Stent (Driver) in stable and unstable angina pectoris
LEGRAND, Victor ULg; Kelbaek, H.; Hauptmann, K. E. et al

in American Journal of Cardiology (2006), 97(3), 349-352

The Clinical and Angiographic analysis with a Cobalt Alloy Coronary Stent (Driver) (CLASS) study was a prospective, nonrandomized, multicenter study designed to assess the safety and efficacy of a cobalt ... [more ▼]

The Clinical and Angiographic analysis with a Cobalt Alloy Coronary Stent (Driver) (CLASS) study was a prospective, nonrandomized, multicenter study designed to assess the safety and efficacy of a cobalt-chromium alloy-based stent in patients with stable or unstable angina pectoris. A total of 203 lesions were treated in 202 enrolled patients. The percentage of major adverse cardiac event-free patients was 87.6% (177 of 202) at 6 months (primary safety end point; major adverse cardiac events were defined as death, myocardial infarction, emergency bypass surgery, or target lesion revascularization [percutaneous transluminal coronary angioplasty or coronary artery bypass grafting]). The angiographic success rate (primary efficacy end point) was 100%, and the procedural success rate was 98%. The binary in-stent restenosis rate at 6 months was 12.6%. Our results have demonstrated that the Driver cobalt-chromium alloy stent can be used with a low 6-month incidence of major adverse cardiac events, a low 6-month binary restenosis rate, and high angiographic and procedural success rates. [less ▲]

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See detailClinical and angiographic outcome of elective stent implantation in small coronary vessels: an analysis of the BENESTENT trial.
Keane, D.; Azar, A. J.; de Jaegere, P. et al

in Seminars in interventional cardiology : SIIC (1996), 1(4), 255-62

We examined the influence of vessel size using an intention-to-treat approach in 259 patients who underwent stent implantation and in 257 patients who underwent balloon angioplasty alone in the BENESTENT ... [more ▼]

We examined the influence of vessel size using an intention-to-treat approach in 259 patients who underwent stent implantation and in 257 patients who underwent balloon angioplasty alone in the BENESTENT trial. In the stented population, smaller vessel size was associated with a higher stent:vessel ratio, a greater relative gain and a greater subsequent loss index, and a higher risk of adverse cardiac events. In the balloon angioplasty population small vessel size conveyed an increased requirement for revascularization but did not increase the risk of procedural failure or myocardial infarction during follow-up. Logistic regression indicated that decreasing vessel size (as a continous variable) was associated with an increasing risk of a cardiac event for both the stent and balloon angioplasty populations. [less ▲]

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See detailThe clinical and economic burden of non-adherence with oral bisphosphonates in osteoporotic patients
Hiligsmann, Mickaël ULg; Rabenda, Véronique ULg; Bruyère, Olivier ULg et al

in Arthritis and Rheumatism (2009, October), 60(number 10 (suppl.)), 328

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See detailThe clinical and economic burden of non-adherence with oral bisphosphonates in osteoporotic patients.
Hiligsmann, Mickaël ULg; Rabenda, Véronique ULg; Bruyère, Olivier ULg et al

in Health Policy (2010), 96

OBJECTIVES: This study aims to estimate the clinical and economic burden of non-adherence with oral bisphosphonates in osteoporotic patients and the potential cost-effectiveness of adherence-enhancing ... [more ▼]

OBJECTIVES: This study aims to estimate the clinical and economic burden of non-adherence with oral bisphosphonates in osteoporotic patients and the potential cost-effectiveness of adherence-enhancing interventions. METHODS: A validated Markov microsimulation model estimated costs and outcomes (i.e. the number of fractures and the quality-adjusted life-year (QALY)) for three adherence scenarios: no treatment, real-world adherence and full adherence over 3 years. The real-world adherence scenario employed data from a published observational study. The incremental cost per QALY gained was estimated and compared across the three adherence scenarios. RESULTS: The number of fractures prevented and the QALY gain obtained at real-world adherence levels represented only 38.2% and 40.7% of those expected with full adherence, respectively. The cost per QALY gained of real-world adherence compared with no treatment was estimated at euro10279, and full adherence was found to be cost-saving compared with real-world adherence. CONCLUSIONS: This study suggests that more than half of the potential clinical benefits from oral bisphosphonates in patients with osteoporosis are lost due to poor adherence with treatment. Depending on their cost, interventions with improved adherence to therapy have the potential to be an attractive use of resources. [less ▲]

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See detailThe clinical and economic burden of nonadherence with oral bisphosphonates in osteoporotic patients
Hiligsmann, Mickaël ULg; Rabenda, Véronique ULg; Reginster, Jean-Yves ULg

in Annals of the Rheumatic Diseases (2009, June), 68(S3), 667

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See detailThe clinical and economic burden of nonadherence with osteoporosis medications
Hiligsmann, Mickaël ULg; Rabenda, Véronique ULg; Bruyère, Olivier ULg et al

in Value in Health (2009, October), 12(7), 444

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