References of "2011"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailX-ray CT study of the influence of liquid viscosity on fluid phase distribution in modular catalytic packings
Aferka, Saïd ULg; Viva, Aurora; Brunazzi, Elisabetta et al

in Chemical Engineering Transactions (2011), 24

In the frame of the present study, the influence of liquid viscosity on liquid holdup distribution in a packed column equipped with the modular catalytic packing Katapak-SP 11 is measured. Water and an ... [more ▼]

In the frame of the present study, the influence of liquid viscosity on liquid holdup distribution in a packed column equipped with the modular catalytic packing Katapak-SP 11 is measured. Water and an aqueous solution of glycerine, the viscosity of which equals 10 cP, are used as feed liquids. The estimation of liquid holdup is of great interest due to its strong influence on pressure drop, on solid wetting and on heat and mass transfer coefficients. The experimental technique used is high energy X-ray tomography, which is a unique technique to visualize the local liquid distribution inside the complex structure of packings and to quantify the liquid holdup at different scales. [less ▲]

Detailed reference viewed: 54 (9 ULg)
Full Text
Peer Reviewed
See detailIntegrated backscatter for the in vivo quantification of supraphysiological vitamin D(3)-induced cardiovascular calcifications in rats.
Roosens, Bram; Droogmans, Steven; Hostens, Jeroen et al

in Cardiovascular Toxicology (2011), 11(3), 244-52

Cardiovascular calcifications are frequently found in the aging population and are independent predictors of future cardiovascular events. Integrated backscatter (IB) of ultrasound reflectivity can easily ... [more ▼]

Cardiovascular calcifications are frequently found in the aging population and are independent predictors of future cardiovascular events. Integrated backscatter (IB) of ultrasound reflectivity can easily quantify calcifications. For this purpose, 30 male Wistar rats received 25,000 IU/kg/day of vitamin D(3) (group 1, n = 8), 18,800 IU/kg/day (group 2, n = 8), or injections with the vehicle only (group 3, n = 14), for 10 weeks. Echocardiographic calibrated IB (cIB) was measured and calculated at baseline and after 10 weeks, followed by ex vivo micro-CT and histopathology of the aortic valve, ascending aorta, and myocardium. After 10 weeks, the mean cIB value of the aortic valve was significantly higher for vitamin D(3)-dosed animals compared to controls. The mean cIB value of the ascending aorta and the myocardium was also significantly higher in group 1 compared to group 3. In vivo IB results were confirmed by ex vivo micro-CT and histopathology. In conclusion, IB is a non-ionizing, feasible, and reproducible tool to quantify cardiovascular calcifications in an in vivo rat model. The integration of IB in the standard echocardiographic examination for the quantification of cardiovascular calcifications could be useful for serial evaluation of treatment efficacy and for prognosis assessment. [less ▲]

Detailed reference viewed: 20 (3 ULg)
Peer Reviewed
See detailSelf-DNA release mediates the adjuvant effects of aluminum salts
Marichal, Thomas ULg; Ohata, K; Bedoret, Denis et al

Poster (2011)

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailK-type geomagnetic index nowcast with data quality control
Stankov, Stanimir; Stegen, Koen; Warnant, René ULg

in Annals of Geophysics = Annali di Geofisica (2011), 54(3), 285-295

Detailed reference viewed: 40 (7 ULg)
Full Text
Peer Reviewed
See detailLa clause dite de la "mortuaire" plus vivante que jamais
Leleu, Yves-Henri ULg; Geelhand de Merxem, Nicolas

in Journal des Tribunaux (2011), (6423), 93-95

Detailed reference viewed: 42 (9 ULg)
See detailPhysical modelling of overbank flows with a groyne set on the floodplain
Peltier, Yann ULg

Doctoral thesis (2011)

Detailed reference viewed: 23 (5 ULg)
Peer Reviewed
See detailL'évolution du comble à la lecture des traités français d'architecture du XVIe au XVIIIe siècle
Gilles, Isabelle ULg

in Hoffsummer, Patrick (Ed.) Les charpentes du XIe au XIXe siècle: Grand Ouest de la France. (2011)

Detailed reference viewed: 4 (1 ULg)
Full Text
Peer Reviewed
See detailOptimizing early nutritional support based on recent recommendations in VLBW infants and postnatal growth restriction
SENTERRE, Thibault ULg; Rigo, Jacques ULg

in Journal of Pediatric Gastroenterology and Nutrition (2011), 53(5), 536-542

Detailed reference viewed: 20 (1 ULg)
Full Text
Peer Reviewed
See detailA new Barremian (Early Cretaceous) ichthyosaur from western Russia
Fischer, Valentin ULg; Masure, Edwige; Arkhangelsky, Maxim et al

in Journal of Vertebrate Paleontology (2011), 31(5), 1010-1025

A new ophthalmosaurid ichthyosaur, Sveltonectes insolitus gen. et sp. nov., is described from a sub-complete and three-dimensionally preserved specimen from the late Barremian of western Russia. This new ... [more ▼]

A new ophthalmosaurid ichthyosaur, Sveltonectes insolitus gen. et sp. nov., is described from a sub-complete and three-dimensionally preserved specimen from the late Barremian of western Russia. This new taxon is supported by 11 cranial, dental, and postcranial autapomorphies, and is also characterized by features previously considered as autapomorphic for some other Ophthalmosauridae, such as a processus narialis on the prefrontal and relatively long hindfins with pre- and postaxial accessory digits. We conducted a new phylogenetic analysis of Thunnosauria, which supports a ‘Stenopterygius-origin’ for Ophthalmosauridae. Sveltonectes is regarded as the sister taxon of Aegirosaurus, which shares a similar skull roof construction. Contrary to most other Cretaceous ichthyosaurs, Sveltonectes is characterized by delicate and sharply pointed teeth, confirming that the Ophthalmosauridae were ecologically highly diversified during the Early Cretaceous [less ▲]

Detailed reference viewed: 50 (9 ULg)
Full Text
Peer Reviewed
See detailSyphilis treatment in the human immunodeficiency virus-infected patient: follow the guidelines.
FRIPPIAT, Frédéric ULg; Moutschen, Michel ULg

in Clinical Infectious Diseases : An Official Publication of the Infectious Diseases Society of America (2011), 53(8), 845

Detailed reference viewed: 31 (3 ULg)
Full Text
Peer Reviewed
See detailReduction in incidence of vertebral fractures with once yearly zoledronic acid in men with osteoporosis
Boonen, S.; Kaufman, J. M.; Reginster, Jean-Yves ULg et al

in Journal of Bone and Mineral Research (2011), 26(S1), 23

Detailed reference viewed: 28 (1 ULg)
Full Text
Peer Reviewed
See detailSex differences in the rapid control of aromatase activity in the quail preoptic area.
Konkle, A. T. M.; Balthazart, Jacques ULg

in Journal of Neuroendocrinology (2011), 23(5), 424-34

Adult male quail show high levels of aromatase activity in the preoptic area-hypothalamus (POA-HYP), which parallels the high number of aromatase-immunoreactive cells and elevated mRNA concentrations ... [more ▼]

Adult male quail show high levels of aromatase activity in the preoptic area-hypothalamus (POA-HYP), which parallels the high number of aromatase-immunoreactive cells and elevated mRNA concentrations detected in this brain region by in situ hybridisation. Interestingly, females display considerably lower aromatase activity than males but have almost equal numbers of aromatase-immunoreactive cells and express similar levels of aromatase mRNA. Aromatase activity in the male POA-HYP can be rapidly regulated by calcium-dependent phosphorylations, in the absence of changes in enzyme concentration. In the present study, we investigated whether aromatase activity is differentially regulated by phosphorylations in males and females. A linear increase in accumulation of aromatisation products was observed in both sexes as a function of time but the rate of conversion was slower in females. Saturation analysis confirmed the lower maximum velocities (V(max) ) in females but indicated a similar affinity (K(m) ) in both sexes. Aromatase activity in females reacted differentially to manipulations of intracellular calcium. In particular, chelating calcium with ethylene glycol tetraacetic acid (EGTA) resulted in a larger increase of enzymatic activity in males than in females, especially in the presence of ATP. A differential reaction to kinase inhibitors was also observed between males and females (i.e. a larger increase in aromatase activity in females than in males after exposure to specific inhibitors). These findings suggest that the nature of aromatase is conserved between the sexes, although the control of its activity by calcium appears to be different. Additional characterizations of intracellular calcium in both sexes would therefore be appropriate to better understand aromatase regulation. [less ▲]

Detailed reference viewed: 87 (4 ULg)
Full Text
Peer Reviewed
See detailLack of efficacy of low-dose spironolactone as adjunct treatment to conventional congestive heart failure treatment in dogs
Schuller, S.; Van Israël, N.; Vanbelle, S. et al

in Journal of Veterinary Pharmacology & Therapeutics (2011)

Aldosterone plays an important role in the pathophysiology of heart failure. Aldosterone receptor blockade has been shown to reduce morbidity and mortality in human patients with advanced congestive left ... [more ▼]

Aldosterone plays an important role in the pathophysiology of heart failure. Aldosterone receptor blockade has been shown to reduce morbidity and mortality in human patients with advanced congestive left ventricular heart failure. This study was designed to assess the efficacy and tolerance of long-term low-dose spironolactone when added to conventional heart failure treatment in dogs with advanced heart failure. Eighteen client-owned dogs with advanced congestive heart failure due to either degenerative valve disease (n=11) or dilated cardiomyopathy (n=7) were included in this prospective, placebo-controlled, double-blinded, randomized clinical study. After initial stabilization including furosemide, angiotensin-converting enzyme inhibitors, pimobendan and digoxin, spironolactone at a median dose of 0.52 mg/kg (range 0.49-0.8 mg/kg) once daily (n=9) or placebo (n=9) was added to the treatment, and the dogs were reassessed 3 and 6 months later. Clinical scoring, echocardiography, electrocardiogram, systolic blood pressure measurement, thoracic radiography, sodium, potassium, urea, creatinine, alanine aminotransferase, aldosterone and aminoterminal atrial natriuretic propeptide were assessed at baseline, 3 and 6 months. Survival times were not significantly different between the two treatment groups. Spironolactone was well tolerated when combined with conventional heart failure treatment. [less ▲]

Detailed reference viewed: 22 (2 ULg)
Full Text
See detailRobustness of steel and composite building structures
Jaspart, Jean-Pierre ULg; Demonceau, Jean-François ULg; Coméliau, Ludivine ULg

in 7th National conference on steel structures (2011)

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under an exceptional event. According to the Eurocodes and ... [more ▼]

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under an exceptional event. According to the Eurocodes and some different other national design codes, the structural integrity of civil engineering structures should be ensured through appropriate measures but, in most cases, no precise practical guidelines on how to achieve this goal are provided. At Liège University, the robustness of building frames is investigated with the final objective to propose design requirements to mitigate the risk of progressive collapse considering the conventional scenario “loss of a column” further to an unspecified event. In particular, a complete analytical procedure has been developed for the verification of the robustness of steel or composite plane frames. For sake of simplicity, these first works have been based on the assumption that the dynamic effects linked to the column loss were limited and could therefore be neglected. More recently, complementary works have been carried out with the objective to address the dynamic effects. Besides, the extension of the static procedure to actual 3D frames is under investigation in Liège. The present paper gives a global overview of the ongoing researches in the field of robustness at Liège University and, in particular, the global strategy aiming at deriving design requirements is detailed. [less ▲]

Detailed reference viewed: 88 (8 ULg)
Peer Reviewed
See detailOptimal and robust event-related designs for fMRI
Maus, Bärbel ULg; van Breukelen, Gerard J P; Goebel, R et al

Conference (2011)

Detailed reference viewed: 9 (0 ULg)
Full Text
Peer Reviewed
See detailClosure to "Energy Dissipation and Turbulent Production in Weak Hydraulic Jumps" by E. Mignot and R. Cienfuegos
Mignot, E.; Peltier, Yann ULg; Cienfuegos, R.

in Journal of Hydraulic Engineering (2011), 137(8), 862-863

Detailed reference viewed: 14 (0 ULg)
Full Text
Peer Reviewed
See detailEpizootic rabbit enteropathy inoculum (TEC4) antibiograms and antibiotic fractionation
Huybens, Nathalie ULg; Houeix, Julien ULg; Licois, Dominique et al

in Veterinary Research Communications (2011), 35

Detailed reference viewed: 38 (13 ULg)
Full Text
Peer Reviewed
See detailA partial hybrid stress solid-shell element for the analysis of laminated composites
Rah, Kamran; Van Paepegem, Wim; Habraken, Anne ULg et al

in Computer Methods in Applied Mechanics and Engineerinrg (2011), 200(49-52), 35263539

In this paper a low order partial hybrid stress solid-shell element based on the composite energy functional for the analysis of laminated composite structures is presented. This solid-shell element has ... [more ▼]

In this paper a low order partial hybrid stress solid-shell element based on the composite energy functional for the analysis of laminated composite structures is presented. This solid-shell element has eight nodes with only displacement degrees of freedoms, and three-dimensional constitutive models can be directly employed in the present formulation without any additional treatment. The assumed interlaminar stress field provides very accurate interlaminar stress calculation through the element thickness. These elements can be stacked on top of each other to model multilayer structures, fulfilling the interlaminar stress continuity at the interlayer surfaces and zero traction conditions on the top and bottom surfaces of the laminate. The present solid-shell does not show the transverse shear, trapezoidal and thickness locking phenomenon. [less ▲]

Detailed reference viewed: 18 (1 ULg)
Full Text
Peer Reviewed
See detailAlterIAS: a LIFE+ project to curb the introduction of invasive ornamental plants in Belgium
Halford, Mathieu ULg; Etienne, Branquart; Sonia, Vanderhoeven et al

in Aliens: the invasive species bulletin (2011), 31

Detailed reference viewed: 38 (4 ULg)