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See detailThe Optimisation Of The Helix/Helix Interaction Of A Transmembrane Dimer Is Improved By The Impala Restraint Field
Ducarme, P.; Thomas, Annick ULg; Brasseur, Robert ULg

in Biochimica et Biophysica Acta-Biomembranes (2000), 1509(1-2), 148-54

A continuous membrane model (IMPALA) was previously developed to predict how hydrophobic spans of proteins insert in membranes (Mol. Mod. 2 (1996) 27). Using that membrane model, we looked for the ... [more ▼]

A continuous membrane model (IMPALA) was previously developed to predict how hydrophobic spans of proteins insert in membranes (Mol. Mod. 2 (1996) 27). Using that membrane model, we looked for the interactions between several hydrophobic spans. We used the glycophorin A dimer as an archetype of polytopic protein to validate the approach. We find that the native complex do not dislocate when it is submitted to a 10(5) steps optimisation whereas separated spans converge back to a native-like complex in the same conditions. We also observe that IMPALA restraints are not strictly mandatory but do increase the efficiency of the procedure. [less ▲]

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See detailOptimisation of xanthan gum production by palm date (Phoenix dactylifera L.) juice by-products using response surface methodology
Ben Salah, Riadh; Chaari, Kacem; Besbes, Souhail et al

in Food Chemistry (2010), 121(2), 627-633

The present study was undertaken investigate and optimise the possibility of xanthan gum production by Xanthomonas campestris NRRL B-1459 in batch experiments on date palm juice by-products. Using an ... [more ▼]

The present study was undertaken investigate and optimise the possibility of xanthan gum production by Xanthomonas campestris NRRL B-1459 in batch experiments on date palm juice by-products. Using an experimental Response Surface Methodology complemented with a Central Composite Orthogonal Design, three major independent variables (date juice carbon source, nitrogen source and temperature) were evaluated for their individual and interactive effects on biomass and xanthan gum production. The optimal conditions selected were: 84.68 g/l for carbon source, 2.7 g/l for nitrogen source, and 30.1 degrees C for temperature. The experimental value obtained for xanthan production under these conditions was about 43.35 g/l, which was close to the 42.96 g/l value predicted by the model. Higher yields of biomass production could be obtained at 46.68 g/l for carbon source, 4.58 g/l for nitrogen source and 30 degrees C for temperature. The maximum value obtained for biomass production was 3.35 g/l, which was higher than the 2.98 g/l value predicted by the model. The xanthan formed was subjected to HPLC and TLC analyses and its molecular weight as well as pyruvate content were identified. The findings indicated that this polysaccharide contained glucose, glucoronic acid and mannose. Overall, the date palm juice by-products presented in the current study seem to exhibit promising properties that can open new pathways for the production of efficient and cost-effective xanthan gum. (C) 2010 Elsevier Ltd. All rights reserved. [less ▲]

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See detailOPTIMISATION TOPOLOGIQUE : DU MILIEU CONTINU A LA STRUCTURE ELASTIQUE
Duysinx, Pierre ULg

Doctoral thesis (1996)

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See detailOptimisation topologique de micropoutres en vue de maximiser la tension de pull-in
Lemaire, Etienne ULg

Master of advanced studies dissertation (2006)

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See detailL’Optimisation Topologique en Mécanique
Duysinx, Pierre ULg

Article for general public (1999)

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See detailOptimised contrast enhanced nanoCT for volumetric analyses of in vitro manufactured tissue-engineered bone constructs
Sonnaert, Maarten; Kerckhofs, Greet ULg; Papantoniou, Ioannis et al

Conference (2013)

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See detailOptimiser l'expression orale en travaillant sur les stratégies de communication (1re partie)
Dahmen, Manfred; Doppagne, Véronique ULg; Simons, Germain ULg

Conference given outside the academic context (2001)

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See detailOptimiser l'expression orale en travaillant sur les stratégies de communication (2nde partie).
Dahmen, Manfred; Doppagne, Véronique ULg; Simons, Germain ULg

Conference given outside the academic context (2002)

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See detailOptimiser l'usage des fourrages auto-produits et viser l'autonomie protéique
Beckers, Yves ULg

Conference given outside the academic context (2011)

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See detailOptimiser une prise de décision fondée sur la preuve scientifique
Vandeweerd, Jean-Michel ULg; Vandenput, Sandrina ULg

in Point Vétérinaire (2009), 40(298), 37-40

les deux premières étapes de la démarche de la médecine factuelle sont la formulation correcte de la question posée et l'élaboration précise de la requête dans les bases de données bibliographiques

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See detailOptimisez votre maison
Guillemeau, Jean-Marc ULg; Hauglustaine, Jean-Marie ULg; Wagelmans, Paul ULg

Book (2003)

A comfortable house, limited costs of heating and reduced CO2 emissions… Three opposite objectives? Nothing is less true! The thermal regulation in Walloon region indeed aims at reconciling them. The ... [more ▼]

A comfortable house, limited costs of heating and reduced CO2 emissions… Three opposite objectives? Nothing is less true! The thermal regulation in Walloon region indeed aims at reconciling them. The great principles in the middle of this regulation relate to the good orientation, the good insulation and the good ventilation of the dwelling as well as the choice of a system of adequate heating. This booklet explains these principles and invaluable councils into practice to put them at the moment design or restoration of your house gives you. [less ▲]

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See detailOptimising a cascade of hydroelectric power stations with the WOLF package
Erpicum, Sébastien ULg; Archambeau, Pierre ULg; Dewals, Benjamin ULg et al

in Brebbia, C. A. (Ed.) Water Ressources Management (2003)

Original free-surface flow solvers have been developed by the HACH during the last years. The resulting fully integrated WOLF package allows engineers to study a very wide range of free surface flows ... [more ▼]

Original free-surface flow solvers have been developed by the HACH during the last years. The resulting fully integrated WOLF package allows engineers to study a very wide range of free surface flows situations. Successful and accurate computations are performed for phenomena as various as hydrological run-offs and dam breaking in quasi 3 dimensions including solid transport effects, as well as rivers networks modelling with explicit exchanges between river paths. All the models, physically based, use efficient and original numerical methods to solve continuous or discontinuous free-surface flow equations. They handle structured or unstructured grids with both first and second order accurate explicit or implicit algorithms in time and space. WOLF also includes powerful user-friendly pre- and post-processing with 2D and 3D animated visualizations as well as a parameters optimization software interconnected with all the package components and based on the innovating method of genetic algorithms. In this paper, the production of the hydroelectric power plants installed on a 60 km long section of the rivers Amblève and Warche in Belgium is presented in details to illustrate the numerical calculation and optimization process. The river network is modeled using real natural topographic data. Hydrological balance is closed and roughness coefficients are calibrated from water level and discharge field measurements. Hydroelectric production is optimized by an automatic calibration of the parameters of the hydrogram injected in the network from the Robertville dam. This approach leads to a substantial gain in both hydroelectric production and financial benefits and deals with all management and security criteria. [less ▲]

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See detailOptimising monitoring in the management of Crohn's disease: a physician's perspective.
Papay, Pavol; Ignjatovic, Ana; Karmiris, Konstantinos et al

in Journal of Crohn's & colitis (2013), 7(8), 653-69

Management of Crohn's disease has traditionally placed high value on subjective symptom assessment; however, it is increasingly appreciated that patient symptoms and objective parameters of inflammation ... [more ▼]

Management of Crohn's disease has traditionally placed high value on subjective symptom assessment; however, it is increasingly appreciated that patient symptoms and objective parameters of inflammation can be disconnected. Therefore, strategies that objectively monitor inflammatory activity should be utilised throughout the disease course to optimise patient management. Initially, a thorough assessment of the severity, location and extent of disease is needed to ensure a correct diagnosis, identify any complications, help assess prognosis and select appropriate therapy. During follow-up, clinical decision-making should be driven by disease activity monitoring, with the aim of optimising treatment for tight disease control. However, few data exist to guide the choice of monitoring tools and the frequency of their use. Furthermore, adaption of monitoring strategies for symptomatic, asymptomatic and post-operative patients has not been well defined. The Annual excHangE on the ADvances in Inflammatory Bowel Disease (IBD Ahead) 2011 educational programme, which included approximately 600 gastroenterologists from 36 countries, has developed practice recommendations for the optimal monitoring of Crohn's disease based on evidence and/or expert opinion. These recommendations address the need to incorporate different modalities of disease assessment (symptom and endoscopic assessment, measurement of biomarkers of inflammatory activity and cross-sectional imaging) into robust monitoring. Furthermore, the importance of measuring and recording parameters in a standardised fashion to enable longitudinal evaluation of disease activity is highlighted. [less ▲]

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See detailOptimising strobilurine fungicide uses in a reasoned protection of winter wheat
Meeùs, Patrick; Bodson, Bernard ULg

in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (1998, May 05), 63(3b), 1023-1027

For three years, strobilurine fungicides are applied at different growth stages of a winter wheat crop in a single application and in a programme of treatments. The trial results show the interest of ... [more ▼]

For three years, strobilurine fungicides are applied at different growth stages of a winter wheat crop in a single application and in a programme of treatments. The trial results show the interest of these recent products for the protection of the upper organs: flag leaf and ear. [less ▲]

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See detailHet optimisme omarmen
Verjans, Pierre ULg

Article for general public (2011)

Onderhandelingen zijn in België een slopende wisselwerking tussen cynische keuzes en idealisme. Tijdens zo'n crisis gaan de zaken gewoon door in de gemeenschappen, de gewesten, de federale staat, de ... [more ▼]

Onderhandelingen zijn in België een slopende wisselwerking tussen cynische keuzes en idealisme. Tijdens zo'n crisis gaan de zaken gewoon door in de gemeenschappen, de gewesten, de federale staat, de gemeenten en provincies. [less ▲]

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See detailL'optimisme vigilant de Jean Englebert
Durand, Pascal ULg

Article for general public (1995)

Interview de l'architecte Jean Englebert.

Detailed reference viewed: 21 (2 ULg)