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See detailComparaison de trois approches pour l'estimation de l'incertitude.
Marini Djang'Eing'A, Roland ULg; Chiap, Patrice ULg; Boulanger, Bruno ULg et al

in Acta Clinica Belgica. Supplementum (2006), (1), 60-2

Three different approaches for the estimation of uncertainty measurements using the same analytical method were compared, namely validation, robustness and inter-laboratory studies. The uncertainty ... [more ▼]

Three different approaches for the estimation of uncertainty measurements using the same analytical method were compared, namely validation, robustness and inter-laboratory studies. The uncertainty obtained with the robustness study! predicted well the uncertainty of the inter-laboratory study. On the other hand, the uncertainty estimation obtained with the validation study is lower than those obtained with the two other approaches but is still acceptable as long as the analytical method will be used in a single laboratory. [less ▲]

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See detailPréambule
Delville, Michel ULg; Belloi, Livio ULg

in Belloi, Livio; Delville, Michel (Eds.) L'oeuvre en morceaux (2006)

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See detailQTL and candidate genes for fecundity in sows
Buske, Bernd ULg; Sternstein, Ina; Brockmann, Gudrun

in Animal Reproduction Science (2006), 95(3), 167-183

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See detailBart Schoofs
Meesters, Gert ULg

in De Brakke Hond (2006), (92), 107-108

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See detailConflits entre noms de domaines et marques (renommées)
Defossez, Alexandre ULg

in Revue Internationale de Droit Economique (2006)

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See detailEvolution of Bovine herpesvirus 4: recombination and transmission between African buffalo and cattle
Dewals, Benjamin G ULg; Thirion, Muriel ULg; Markine-Goriaynoff, N. et al

in Journal of General Virology (2006), 87(Pt 6), 1509-1519

Bovine herpesvirus 4 (BoHV-4) has been isolated from cattle throughout the world, but virological and serological studies have suggested that the African buffalo is also a natural host for this virus. It ... [more ▼]

Bovine herpesvirus 4 (BoHV-4) has been isolated from cattle throughout the world, but virological and serological studies have suggested that the African buffalo is also a natural host for this virus. It has previously been found that the Bo17 gene of BoHV-4 was acquired from an ancestor of the African buffalo, probably around 1.5 million years ago. Analysis of the variation of the Bo17 gene sequence among BoHV-4 strains suggested a relatively ancient transmission of BoHV-4 from the buffalo to the Bos primigenius lineage, followed by a host-dependent split between zebu and taurine BoHV-4 strains. In the present study, the evolutionary history of BoHV-4 was investigated by analysis of five gene sequences from each of nine strains representative of the viral species: three isolated from African buffalo in Kenya and six from cattle from Europe, North America and India. No two gene sequences had the same evolutionary tree, indicating that recombination has occurred between divergent lineages; six recombination events were delineated for these sequences. Nevertheless, exchange has been infrequent enough that a clonal evolutionary history of the strains could be discerned, upon which the recombination events were superimposed. The dates of divergence among BoHV-4 lineages were estimated from synonymous nucleotide-substitution rates. The inferred evolutionary history suggests that African buffalo were the original natural reservoir of BoHV-4 and that there have been at least three independent transmissions from buffalo to cattle, probably via intermediate hosts and - at least in the case of North American strains - within the last 500 years. [less ▲]

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See detailConrad Botes
Meesters, Gert ULg

in De Brakke Hond (2006), (92), 81-82

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See detailInterlaboratory study of a NACE method for the determination of R-timolol content in S-timolol maleate: assessment of uncertainty.
Marini Djang'Eing'A, Roland ULg; Groom, Carl; Doucet, Francois R et al

in Electrophoresis (2006), 27(12), 2386-99

Analyses of statistical variance were applied to evaluate the precision and practicality of a CD-based NACE assay for R-timolol after enantiomeric separation of R- and S-timolol. Data were collected in an ... [more ▼]

Analyses of statistical variance were applied to evaluate the precision and practicality of a CD-based NACE assay for R-timolol after enantiomeric separation of R- and S-timolol. Data were collected in an interlaboratory study by 11 participating laboratories located in Europe and North America. General qualitative method performance was examined using suitability descriptors (i.e. resolution, selectivity, migration times and S/N), while precision was determined by quantification of variances in the determination of R-timolol at four different impurity levels in S-timolol maleate samples. The interlaboratory trials were designed in accordance with the ISO guideline 5725-2. This allowed estimating for each sample, the different variances, i.e. between-laboratory (s2(Laboratories)), between-day (s2(Days)) and between-replicate (s2(Replicates)). The variances of repeatability (s2r) and reproducibility (s2R) were then calculated. The estimated uncertainty, derived from the precision estimates, seems to be concentration-dependent above a given threshold. This example of R-timolol illustrates how a laboratory can evaluate uncertainty in general. [less ▲]

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See detailCharacterisation of aqueous suspensions of fumed aluminium oxide in presence of two Dolapix dispersants
Gaydardzhiev, Stoyan ULg; Ay, Peter

in Journal of Materials Science (2006), 41

The stability of a fumed aluminium oxide nano powder suspended in water has been assessed through measurement of zeta potential and streaming current, using the fact that the particles exhibit maximum ... [more ▼]

The stability of a fumed aluminium oxide nano powder suspended in water has been assessed through measurement of zeta potential and streaming current, using the fact that the particles exhibit maximum repulsion at high magnitude of charge. Two commercial dispersants belonging to a Dolapix series have been tested. Dolapix CE 64 has shown a better deflocculating action than Dolapix A 88. The iso electric point of the powder suspension has been found close to pH 9. A notable shift in the pH of iso electric point when Dolapix CE 64 was present, indicating that the interaction between particles and dispersant has involved chemical sorption. It has been found out, that at the relative low solids loading studied and within the limits of the pH measurement accuracy, a dispersant supplied in dose levels from 12 to 24 mg/g, has confined the pHiep to a relatively narrow range. A capillary suction time technique has been tried for evaluation of suspension fluidity as function of dispersant concentration and pH. For the dispersant stabilised suspensions, a correlation between their CST and pHiep has been documented [less ▲]

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See detailUsing physiological signals for sound creation
Filatriau, J. J.; Lehembre, Remy ULg; Noirhomme, Quentin ULg et al

in Proceedings of the 11-th International Conference Speech and Computer, SPECOM'2006 (2006)

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See detailFacteurs influençant l'efficacité des repeuplements. In: Vers une nouvelle politique des rempoissonnements.
Rollin, X.; Poncin, Pascal ULg

in Vers une nouvelle politique de rempoissonnement (2006)

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See detailImplicit memory during isoflurane anesthesia - Reply
Iselin-Chaves, Irène A.; Willems, Sylvie ULg

in Anesthesiology (2006), 105(2), 430-430

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See detailLa "compétence discursive" en néerlandais langue étrangère: prosodie et syntaxe
Rasier, Laurent ULg

Scientific conference (2006)

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See detailGlaciaçoes Eocarboniferas nas bacias do Norte do Brazil.
Caputo, M.V.; Streel, Maurice ULg; Melo, H.G. et al

in Simposio da Amazonias (2006)

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See detailWaimes/Robertville: la Via Mansuerisca et la découverte d'un véhicule
Corbiau, Marie-Hélène; Hoffsummer, Patrick ULg

in Vie archéologique, chronique de l'archéologie wallonne (2006), 13

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See detailSome comments on the Parametric Fire Model of Eurocode 1
Reitgrüber, Stefan; Pérez-Jimenez, Christian; Di Blasi, Colomba et al

Conference (2006)

In this paper, the modifications that have been recently introduced in the parametric fire model of Eurocode 1 are presented. The reasons behind these modifications are given. Some Problems that have been ... [more ▼]

In this paper, the modifications that have been recently introduced in the parametric fire model of Eurocode 1 are presented. The reasons behind these modifications are given. Some Problems that have been discovered in the present formulation are highlighted, namely the fact that the model is not continuous and the fact that the heat release of wood that has been used for the calibration of the model is not consistent anymore with the value that is now recommended in the Eurocode. A proposal is made that makes the model continuous. A new calibration of this modified model has been made on the base of the now recommended value of the heat release of wood with comparison to the results of some 50 full scale experimental fire tests. [less ▲]

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See detailFlux closure during a substorm observed by Cluster, Double Star, IMAGE FUV, SuperDARN, and Greenland magnetometers
Milan, S. E.; Wild, J. A.; Hubert, Benoît ULg et al

in Annales Geophysicae (2006), 24(2), 751-767

We examine magnetic flux closure during an extended substorm interval on 29 August 2004 involving a two-stage onset and subsequent re-intensifications. Cluster and Double Star provide observations of ... [more ▼]

We examine magnetic flux closure during an extended substorm interval on 29 August 2004 involving a two-stage onset and subsequent re-intensifications. Cluster and Double Star provide observations of magnetotail dynamics, while the corresponding auroral evolution, convection response, and substorm current wedge development are monitored by IMAGE FUV, SuperDARN, and the Greenland magnetometer chain, respectively. The first stage of onset is associated with the reconnection of closed flux in the plasma sheet; this is accompanied by a short-lived auroral intensification, a modest substorm current wedge magnetic bay, but no significant ionospheric convection enhancement. The second stage follows the progression of reconnection to the open field lines of the lobes; accompanied by prolonged auroral bulge and westward-travelling surge development, enhanced magnetic bays and convection. We find that the tail dynamics are highly influenced by ongoing dayside creation of open flux, leading to flux pile-up in the near-tail and a step-wise down-tail motion of the tail reconnection site. In all, 5 dipolarizations are observed, each associated with the closure of similar to 0.1 GWb of flux. Very simple calculations indicate that the X-line should progress down-tail at a speed of 20 km s(-1) or 6 R-E between each dipolarization. [less ▲]

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