Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
Peer Reviewed
See detailEngraftment kinetics and graft failure after single umbilical cord blood transplantation using a myeloablative conditioning regimen
RUGGERI, ANNALISA; LABOPIN, MYRIAM; SORMANI, MARIA PIA et al

in Haematologica (2014), 99

Detailed reference viewed: 12 (2 ULiège)
Full Text
See detailLes engrais enrichis en sélénium: une alternative pour améliorer le statut en sélénium du bovin
Cabaraux, Jean-François ULiege; Dotreppe, Olivier ULiege; Hornick, Jean-Luc ULiege et al

Article for general public (2006)

Le Sélénium (Se) est un oligo-élément indispensable au bon fonctionnement de l'organisme, notamment chez le bovin. Différents éléments plaident pour l’existence de déficits en Se dans le cheptel bovin et ... [more ▼]

Le Sélénium (Se) est un oligo-élément indispensable au bon fonctionnement de l'organisme, notamment chez le bovin. Différents éléments plaident pour l’existence de déficits en Se dans le cheptel bovin et particulièrement dans les troupeaux allaitants. Solutions injectables, bolus, supplémentation des rations… différentes méthodes permettent d’assurer un statut en Se correct chez l’animal. Une autre alternative consiste à enrichir les aliments produits au niveau de l’exploitation en utilisant des engrais enrichis en Se. Le Service de Nutrition de la Faculté de Médecine Vétérinaire a testé l’effet de ce type d’engrais sur la teneur en Se dans les aliments produits et sur le statut Se d’un troupeau de vaches allaitantes [less ▲]

Detailed reference viewed: 221 (9 ULiège)
See detailL'engraissement de la vache de réforme Blan-Bleu Belge
Cabaraux, Jean-François ULiege

Master of advanced studies dissertation (2001)

Detailed reference viewed: 68 (12 ULiège)
See detailEngraissement du taurillon Blanc Bleu Belge culard. Enseignements pratiques
Raskin, Pascale; Van Eenaeme, Christian ULiege; Minet, Vincent et al

Book published by Ministère des Classes Moyennes et de l'Agriculture - 1ère édition, mai 1997 (1997)

Detailed reference viewed: 119 (6 ULiège)
See detailEngraissement du taurillon Blanc-Bleu belge
Minet, Vincent; Van Eenaeme, Christian ULiege; Raskin, Pascale et al

in Agricontact (1997), 291

Detailed reference viewed: 110 (5 ULiège)
Full Text
Peer Reviewed
See detailEnhanced Activity of Meprin-a, a Pro-Migratory and Pro-Angiogenic Protease, in Colorectal Cancer
Lottaz, Daniel; Maurer, Christoph A; Noël, Agnès ULiege et al

in PLoS ONE (2011), 6(11), 26450

Meprin-α is a metalloprotease overexpressed in cancer cells, leading to the accumulation of this protease in a subset of colorectal tumors. The impact of increased meprin-α levels on tumor progression is ... [more ▼]

Meprin-α is a metalloprotease overexpressed in cancer cells, leading to the accumulation of this protease in a subset of colorectal tumors. The impact of increased meprin-α levels on tumor progression is not known. We investigated the effect of this protease on cell migration and angiogenesis in vitro and studied the expression of meprin-α mRNA, protein and proteolytic activity in primary tumors at progressive stages and in liver metastases of patients with colorectal cancer, as well as inhibitory activity towards meprin-α in sera of cancer patient as compared to healthy controls. We found that the hepatocyte growth factor (HGF)- induced migratory response of meprin-transfected epithelial cells was increased compared to wild-type cells in the presence of plasminogen, and that the angiogenic response in organ-cultured rat aortic explants was enhanced in the presence of exogenous human meprin-α. In patients, meprin-α mRNA was expressed in colonic adenomas, primary tumors UICC (International Union Against Cancer) stage I, II, III and IV, as well as in liver metastases. In contrast, the corresponding protein accumulated only in primary tumors and liver metastases, but not in adenomas. However, liver metastases lacked meprin-α activity despite increased expression of the corresponding protein, which correlated with inefficient zymogen activation. Sera from cancer patients exhibited reduced meprin-α inhibition compared to healthy controls. In conclusion, meprin-α activity is regulated differently in primary tumors and metastases, leading to high proteolytic activity in primary tumors and low activity in liver metastases. By virtue of its pro-migratory and pro-angiogenic activity, meprin-α may promote tumor progression in colorectal cancer. [less ▲]

Detailed reference viewed: 19 (3 ULiège)
Full Text
Peer Reviewed
See detailEnhanced ALE Data Transfer Strategy for Explicit and Implicit Thermomechanical Simulations of High-Speed Processes
Boman, Romain ULiege; Ponthot, Jean-Philippe ULiege

in International Journal of Impact Engineering (2013), 53

The Arbitrary Lagrangian Eulerian (ALE) formalism, which allows the computational grid to move regardless of thematerial deformation, is a convenient way to avoid distortedmeshes in finite element ... [more ▼]

The Arbitrary Lagrangian Eulerian (ALE) formalism, which allows the computational grid to move regardless of thematerial deformation, is a convenient way to avoid distortedmeshes in finite element simulations. One crucial step of the ALE algorithm is the data transfer between the Lagrangian and the Eulerian meshes. In this paper, an enhanced transfer method is presented. It can handle complex finite elements which are integrated with more than one Gauss point. This method can thus be used either with an explicit or with an implicit time integration scheme. Choosing the adequate order of accuracy and the most appropriate number of physical fields to be transferred is always a compromise between the speed and the precision of the model. For example, some variables may be sometimes ignored during the transfer in order to decrease the CPU time. Therefore, the most effective way to use such an algorithm is demonstrated in this work by revisiting a classical ALE benchmark, the Taylor impact. An implicit thermomechanical ALE simulation of a high-speed tensile test is also presented and is compared to experimental results from the literature. [less ▲]

Detailed reference viewed: 50 (12 ULiège)
Full Text
See detailEnhanced Approximation Schemes for Classical Optimization Algorithm
Bruyneel, Michaël ULiege; Vermaut, O.; Duysinx, Pierre ULiege et al

Report (1998)

The report assesses the capabilities of the algorithms CONLIN, MDQA, an GCM available in Boss Quattro to solve composite structure optimization. The algorithms are evaluated with respect to the ... [more ▼]

The report assesses the capabilities of the algorithms CONLIN, MDQA, an GCM available in Boss Quattro to solve composite structure optimization. The algorithms are evaluated with respect to the optimization of sandwich panel parameters (ply thickness and orientation, and foam core thicknesss). [less ▲]

Detailed reference viewed: 34 (3 ULiège)
Full Text
Peer Reviewed
See detailEnhanced basal lubrication and the contribution of the Greenland ice sheet to future sea-level rise
Shannon, S.; Payne, A.; Bartholomew, I. et al

in Proceedings of the National Academy of Sciences of the United States of America (2013), 110(49), 19719-19724

We assess the effect of enhanced basal sliding on the flow and mass budget of the Greenland ice sheet, using a newly developed parameterization of the relation between meltwater runoff and ice flow. A ... [more ▼]

We assess the effect of enhanced basal sliding on the flow and mass budget of the Greenland ice sheet, using a newly developed parameterization of the relation between meltwater runoff and ice flow. A wide range of observations suggest that water generated by melt at the surface of the ice sheet reaches its bed by both fracture and drainage through moulins. Once at the bed, this water is likely to affect lubrication, although current observations are insufficient to determine whether changes in subglacial hydraulics will limit the potential for the speedup of flow. An uncertainty analysis based on our best-fit parameterization admits both possibilities: continuously increasing or bounded lubrication. We apply the parameterization to four higher-order ice-sheet models in a series of experiments forced by changes in both lubrication and surface mass budget and determine the additional mass loss brought about by lubrication in comparison with experiments forced only by changes in surface mass balance. We use forcing from a regional climate model, itself forced by output from the European Centre Hamburg Model (ECHAM5) global climate model run under scenario A1B. Although changes in lubrication generate widespread effects on the flow and form of the ice sheet, they do not affect substantial net mass loss; increase in the ice sheet’s contribution to sea-level rise from basal lubrication is projected by all models to be no more than 5% of the contribution from surface mass budget forcing alone. [less ▲]

Detailed reference viewed: 21 (5 ULiège)
Full Text
Peer Reviewed
See detailEnhanced Biogas Production During Anaerobic Digestion of Steam-pretreated Lignocellulosic Biomass from Williams Cavendish Banana Plants
Kamdem, Irenée ULiege; Hiligsmann, S. ULiege; Vanderghem, M. et al

in Waste and Biomass Valorization (2016)

In the context of green energy valorisation, this study reports the chemical analysis and improvement of biogas production via anaerobic digestion of treated and untreated agricultural waste ... [more ▼]

In the context of green energy valorisation, this study reports the chemical analysis and improvement of biogas production via anaerobic digestion of treated and untreated agricultural waste lignocellulosic biomass from Williams Cavendish banana plants (WCLB). With a worldwide annual production of 26 million tons of dry matter (DM), large amounts of this waste are abandoned in plantations after fruit harvesting. Steam explosion (SE) and steam cracking (SC) pretreatments were investigated at severity factors of 3.16 and 4.29, respectively, to improve the biogas potential over 135 days under mesophilic conditions. The study revealed a carbon (C)/nitrogen (N) ratio of 27.3, indicating that WCLB has sufficient N content for successful fermentation. The proportions of liquid and solid fractions recovered after SC were 20% and 80%, respectively, whereas SE yielded 17% and 83% liquid and solids, respectively. The neutral sugar content of the studied fractions indicated that glucose and xylose constituted the highest hexose and pentose fractions, respectively, in WCLB. The highest and lowest total biogas potentials were obtained from LFSC (280 mL g-1 of DM) and untreated WCLB (240 mL g-1 of DM), respectively. The methane yield from untreated WCLB and combined solid and liquid fractions from SE and SC were 40, 42, and 51%, respectively, of the theoretical methane potential. The maximum biogas production rate (7.8 mL g-1 d-1) was obtained with SFSC. This study reveals that SC deconstructs WCLB efficiently and thereby greatly enhances methane production. [less ▲]

Detailed reference viewed: 159 (8 ULiège)
Peer Reviewed
See detailEnhanced biomass production of a novel Acetobacter strain isolated from Moroccan biotopes using response surface methodology approach
Mounir, Majid ULiege; Hamas, Khadija; Tamraoui, Khadija et al

Conference (2016, March 21)

The objective of this work was first the isolation of novel acetic acid bacteria strains from natural Moroccan habitats, and then, the evaluation of their ability to produce microbial starters for vinegar ... [more ▼]

The objective of this work was first the isolation of novel acetic acid bacteria strains from natural Moroccan habitats, and then, the evaluation of their ability to produce microbial starters for vinegar production in large-scale. The isolation was made from figs, dates, cactus, and traditional fruit vinegars. Four strains, selected from a total of 63 isolates were confirmed to be belonged to Acetobacter species according to biochemical tests and molecular study based on 16s rDNA sequence analysis. Acetic acid fermentation tests, performed on date and apple fermented juices by the selected Acetobacter strains, showed high capacity of acidification. The most efficient strain, isolated from cactus vinegar, yielded an acidity of about 42.5 g/L on apple juice. A cell growth optimization was carried out on the most efficient strain using the response surface methodology (RSM). The linear, quadratic and interaction effects of four factors; ethanol, acetic acid, glucose and pH were studied by the application of a central composite design. 30 experiments were designed to predict the maximum concentration of cell biomass. The optimal calculated values of ethanol, acetic acid, glucose and pH allowing the prediction of the maximum biomass production (2.2 g/L) were 28.18 g/L, 10.12 g/L, 15.15 g/L and 5.33, respectively. Subsequently, further batch fermentations were carried out in a 6 L lab-bioreactor using the optimased culture medium. The results were in line with the predict values. It was concluded that the studied strain is well suited to be used as parental strain to prepare a starter for vinegar fruit production. [less ▲]

Detailed reference viewed: 48 (1 ULiège)
Full Text
Peer Reviewed
See detailEnhanced Characterization of the Smell of Death by Comprehensive Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry (GCxGC-TOFMS)
Dekeirsschieter, Jessica ULiege; Stefanuto, Pierre-Hugues ULiege; Brasseur, Catherine ULiege et al

in PLoS ONE (2012), 7(6), 39005

Soon after death, the decay process of mammalian soft tissues begins and leads to the release of cadaveric volatile compounds in the surrounding environment. The study of postmortem decomposition products ... [more ▼]

Soon after death, the decay process of mammalian soft tissues begins and leads to the release of cadaveric volatile compounds in the surrounding environment. The study of postmortem decomposition products is an emerging field of study in forensic science. However, a better knowledge of the smell of death and its volatile constituents may have many applications in forensic sciences. Domestic pigs are the most widely used human body analogues in forensic experiments, mainly due to ethical restrictions. Indeed, decomposition trials on human corpses are restricted in many countries worldwide. This article reports on the use of comprehensive two-dimensional gas chromatography coupled with time-offlight mass spectrometry (GCxGC-TOFMS) for thanatochemistry applications. A total of 832 VOCs released by a decaying pig carcass in terrestrial ecosystem, i.e. a forest biotope, were identified by GCxGC-TOFMS. These postmortem compounds belong to many kinds of chemical class, mainly oxygen compounds (alcohols, acids, ketones, aldehydes, esters), sulfur and nitrogen compounds, aromatic compounds such as phenolic molecules and hydrocarbons. The use of GCxGC-TOFMS in study of postmortem volatile compounds instead of conventional GC-MS was successful. [less ▲]

Detailed reference viewed: 191 (31 ULiège)
Full Text
Peer Reviewed
See detailEnhanced Chemical Profiling of Human Decomposition in a Case Study
Dubois, Lena ULiege; Perrault, Katelynn ULiege; Stefanuto, Pierre-Hugues ULiege et al

in Forensic Science International (2017), 277

Detailed reference viewed: 26 (2 ULiège)
Full Text
Peer Reviewed
See detailEnhanced Debye level in nano Zn1+xSb, FeSb2, and NiSb: Nuclear inelastic spectroscopy on121 Sb
Claudio, T.; Bessas, D.; Birke, C. S. et al

in Physica Status Solidi B. Basic Research (2014), 251(5), 919-923

The121 Sb partial density of phonon states (DPS) in nanopowder antimonides were obtained with nuclear inelastic scattering on Zn1+xSb, FeSb2, and NiSb prepared by a wet chemistry route. The DPS is ... [more ▼]

The121 Sb partial density of phonon states (DPS) in nanopowder antimonides were obtained with nuclear inelastic scattering on Zn1+xSb, FeSb2, and NiSb prepared by a wet chemistry route. The DPS is compared with the bulk counterpart. An increase of the Debye level indicative of a decrease of the isothermal speed of sound is systematically observed. This observation reveals that the decrease in speed of sound observed in nanostructured thermoelectric materials is not restricted to sintered nanocomposites. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. [less ▲]

Detailed reference viewed: 24 (4 ULiège)
Full Text
Peer Reviewed
See detailEnhanced Efficiency Of A Targeted Fusogenic Peptide
Decout, A.; Labeur, C.; Goethals, M. et al

in Biochimica et Biophysica Acta-Biomembranes (1998), 1372(1), 102-16

Membrane targeting was investigated as a potential strategy to increase the fusogenic activity of an isolated fusion peptide. This was achieved by coupling the fusogenic carboxy-terminal part of the beta ... [more ▼]

Membrane targeting was investigated as a potential strategy to increase the fusogenic activity of an isolated fusion peptide. This was achieved by coupling the fusogenic carboxy-terminal part of the beta-amyloid peptide (Abeta, amino acids 29-40), involved in Alzheimer's disease, to a positively charged peptide (PIP2-binding peptide, PBP) interacting specifically with a naturally occurring negatively charged phospholipid, phosphatidylinositol 4, 5-bisphosphate (PIP2). Peptide-induced vesicle fusion was spectroscopically evidenced by: (i) mixing of membrane lipids, (ii) mixing of aqueous vesicular contents, and (iii) an irreversible increase in vesicle size, at concentrations five to six times lower than the Abeta(29-40) peptide. In contrast, at these concentrations the PBP-Abeta(29-40) peptide did not display any significant activity on neutral vesicles, indicating that negatively charged phospholipids included as targets in the membranes, are required to compensate for the lower hydrophobicity of this peptide. When the alpha-helical structure of the chimeric peptide was induced by dissolving it in trifluoroethanol, an increase of the fusogenic potential of the peptide was observed, supporting the hypothesis that the alpha-helical conformation of the peptide is crucial to trigger the lipid-peptide interaction. The specificity of the interaction between PIP2 and the PBP moiety, was shown by the less efficient targeting of the chimeric peptide to membranes charged with phosphatidylserine. These data thus demonstrate that the specific properties of both the Abeta(29-40) and the PBP peptide are conserved in the chimeric peptide, and that a synergetic effect is reached through chemical linkage of these two fragments. [less ▲]

Detailed reference viewed: 8 (0 ULiège)
Full Text
Peer Reviewed
See detailEnhanced exploratory activity in woodlice exposed to random visuo-tactile patterns
Anselme, Patrick ULiege

in Learning & Motivation (2015), 50

In birds and mammals, randomness is known to have excitatory effects on exploratory behavior, but this phenomenon has not extensively been studied in invertebrates. Four experiments examined the ... [more ▼]

In birds and mammals, randomness is known to have excitatory effects on exploratory behavior, but this phenomenon has not extensively been studied in invertebrates. Four experiments examined the propensity of woodlice (Porcellio scaber) to choose between the exploration of an environment composed of random visuo-tactile patterns and the exploration of an environment composed of regular visuo-tactile patterns. Rearing-up behavior and distance traveled were measured to determine (i) woodlice’s reactivity to a forced exposure to random or regular patterns, (ii) the effect of random and regular patterns on exploratory choice, (iii) the effect of random and regular patterns on exploratory choice in preexposed animals, and (iv) the effect of a shelter available in the less explored environment on exploratory choice. The results suggest that random visuo-tactile patterns have an excitatory effect on the exploratory behavior of woodlice and that this effect develops more rapidly if the woodlice were initially preexposed to those patterns. They also suggest that exploration is related to the search for better habitat conditions because the presence of a shelter abolishes that behavior. [less ▲]

Detailed reference viewed: 28 (0 ULiège)
Peer Reviewed
See detailEnhanced expression in seminoma of human zinc finger genes located on chromosome 19
Ogawa, Takehiko; Poncelet, Dominique A; Kinoshita, Yuzo et al

in Cancer Genetics & Cytogenetics (1998), 100(1), 36-42

Six Kruppel-type zinc finger (ZF) genes were cloned from a seminoma cDNA library. One, ZFS-1, showed high sequence homology to the ZNF91 KRAB (Kruppel-associated box) ZF gene family and also the same ... [more ▼]

Six Kruppel-type zinc finger (ZF) genes were cloned from a seminoma cDNA library. One, ZFS-1, showed high sequence homology to the ZNF91 KRAB (Kruppel-associated box) ZF gene family and also the same chromosomal assignment. Interestingly, Northern blot analyses using ZFS-1 and ZNF91 revealed that multiple ZF genes on chromosome 19 were predominantly expressed in seminomas. In addition, the testis and the seminoma showed specific expression of 2.3 kb transcript. Our results suggest that ZF genes on chromosome 19 may be implicated in the development and/or growth of seminomas. [less ▲]

Detailed reference viewed: 36 (0 ULiège)
Full Text
Peer Reviewed
See detailEnhanced FEM-based Modeling of Brain Shift Deformation in Image-Guided Neurosurgery
Vigneron, Lara M.; Boman, Romain ULiege; Ponthot, Jean-Philippe ULiege et al

in Journal of Computational & Applied Mathematics (2010), 234

We consider the problem of improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Current navigation systems do not accurately account for intraoperative brain ... [more ▼]

We consider the problem of improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Current navigation systems do not accurately account for intraoperative brain deformation. We focus on the brain shift deformation that occurs just after the opening of the skull and dura. The heart of our system is a nonrigid registration technique using a biomechanical model. We specifically work on two axes: the representation of the structures in the biomechanical model and the evaluation of the surface landmark displacement fields between intraoperative MR images. Using the modified Hausdorff distance as an image similarity measure, we demonstrate that our approach significantly improves the alignment of the intraoperative images. ' 2009 Elsevier B.V. All rights reserved. [less ▲]

Detailed reference viewed: 93 (22 ULiège)