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See detailHigh-resolution spectropolarimetric observations of hot subdwarfs
Petit, P.; Van Grootel, Valérie ULg; Bagnulo, S. et al

in Leaflet - Astronomical Society of the Pacific (2012, March 01), 452

We report on high-resolution spectropolarimetric observations of the hot subdwarf stars HD 76431 and Feige 66, using the ESPaDOnS echelle spectropolarimeter at CFHT. We compute cross-correlation Stokes I ... [more ▼]

We report on high-resolution spectropolarimetric observations of the hot subdwarf stars HD 76431 and Feige 66, using the ESPaDOnS echelle spectropolarimeter at CFHT. We compute cross-correlation Stokes I and V line profiles to enhance the signal-to-noise ratio. We then average all available cross-correlation profiles of each star to further decrease the noise level. Although both targets were previously reported to host kilo-gauss magnetic fields, we do not derive any evidence of large-scale photospheric fields from our sets of observations, in spite of tight error bars on the longitudinal field of the order of 60 gauss for HD 76431 and 200 gauss for Feige 66. A new analysis of FORS1 observations of HD 76431, which provided the basis for the original claim of field detection, confirms the absence of any detectable Zeeman signature, with an error bar of about 100 gauss on the longitudinal magnetic field. [less ▲]

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See detailAutomata-Based Symbolic Representations of Polyhedra
Boigelot, Bernard ULg; Brusten, Julien ULg; Degbomont, Jean-François ULg

in Lecture Notes in Computer Science (2012, March), 7183

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See detailStrontium ranelate reduces the number of radiological or radioclinical progressors in patients with primary knee osteoarthritis
Reginster, Jean-Yves ULg; Chapurlat, R; Christiansen, C et al

in Osteoporosis International (2012, March), 23(S2), 366-367

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See detailWhat are the most important medication attributes for patients with osteoporosis ? Results from a qualitative study
Hiligsmann, Mickaël ULg; Van Durme, C; Geusens, P et al

in Osteoporosis International (2012, March), 23(S2), 81-82

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See detailEfficacy of once-yearly zoledronic acid 5 mg in men with osteoporosis with different levels of serum total testosterone
Boonen, S; Reginster, Jean-Yves ULg; Kaufman, JM et al

in Osteoporosis International (2012, March), 23(S2), 79-80

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See detailDenosumab treatment of postmenopausal women with osteoporosis for 6 years : results from the first 3 years of the freedom extension
Papapoulos, S; Brown, JP; Chapurlat, R et al

in Osteoporosis International (2012, March), 23(S2), 76

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See detailAMP-activated protein kinase controls liposaccharide-induced hyperpermeability
Castanares-Zapatero, Diego; Overtus, M; Communi, Didier et al

in Critical Care (2012, March), 16(suppl 1), 17

Organ dysfunction determines the severity of sepsis and is correlated to mortality. Endothelial increased permeability contributes to the development of organ failure. AMP-activated protein kinase (AMPK ... [more ▼]

Organ dysfunction determines the severity of sepsis and is correlated to mortality. Endothelial increased permeability contributes to the development of organ failure. AMP-activated protein kinase (AMPK) has been shown to modulate cytoskeleton and could mediate endothelial permeability. Our hypothesis is that AMPK controls sepsis-induced hyperpermeability in the heart and is involved in septic cardiomyopathy. Sepsis was induced by intraperitoneal injection of liposaccharide, 10 mg/kg (LPS). Alpha-1 AMPK knockout mice (α1KO) were compared with wild-type. Vascular permeability was characterized by Evans blue extravasation. Inflammatory cytokine mRNA expression was determined by qPCR analysis. Left ventricular mass was assessed by echocardiography. In addition, to emphasize the beneficial role of AMPK on heart vascular permeability, AMPK activator (acadesine) was administered to C57Bl6 mice before LPS injection. The ANOVA test with Bonferroni's post hoc test and the log-rank test were used. P < 0.05 was considered as significant. Increased cardiac vascular permeability was observed in the LPS group in comparison to untreated animals (2.5% vs. 16%; P < 0.05). The α1KO mice exhibited an increase vascular permeability after LPS injection in comparison to wild-type mice (41.5% vs. 16%; P < 0.05). α1KO animals had a significant mortality increase after LPS injection (70% vs. 10%; P < 0.05). LPS markedly induced the production of proinflammatory cytokines (TNFα, IL-1β, IL-6) that were significantly higher in the α1KO animals. More importantly, LPS treatment leads to an increased left ventricular mass in the α1KO mice within 24 hours, suggesting the onset of edema. Finally LPS-induced vascular hyperpermeability was greatly reduced after AMPK activation by acadesine (13.2% vs. 40%; P < 0.05). AMPK importantly regulates cardiac vascular permeability and could control the sepsis-induced cardiomyopathy. AMPK could represent a new pharmacological target of sepsis. [less ▲]

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See detailEffect of collagen hydrolysate in articular pain: A 6-month randomized, double-blind, placebo controlled study
Bruyère, Olivier ULg; Zegels, Brigitte ULg; LEONORI, Lorenzo ULg et al

in Osteoporosis International (2012, March), 23(Suppl. 2), 362-363

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See detailPerception, knowledge and use by general practitioners of Belgium of the FRAX tool
Bruyère, Olivier ULg; Nicolet, Delphine ULg; Compère, Stéphanie et al

in Osteoporosis International (2012, March), 23(Suppl. 2), 363-364

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See detailLong-term (3 years) reproducibility for the radiological assessment of knee osteoarthritis
DEROISY, Rita ULg; Bruyère, Olivier ULg; Gensburger, Deborah et al

in Osteoporosis International (2012, March), 23(Suppl. 2), 219-220

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See detailIndirect comparison of bazedoxifene vs. oral bisphosphonates for the prevention of nonvertebral fractures in high-risk postmenopausal osteoporosis population
Ellis, A; Jansen, J; Luo, X et al

in Osteoporosis International (2012, March), 23(S2), 64-65

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See detailRadiological and clinical profil of osteoarthritic patients undergoing of total joint replacement
Neuprez, Audrey ULg; François, Garance ULg; Bruyère, Olivier ULg et al

in Osteoporosis International (2012, March), 23(Suppl. 2), 129-130

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See detailAssessment of joint space narrowing in knee osteoarthritis has good long-term intercentre reproducibility when read in pairs with a semi-automated device
Gensburger, Deborah; DEROISY, Rita ULg; Arlot, Monique et al

in Osteoporosis International (2012, March), 23(Suppl. 2), 247-248

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See detailCost-effectiveness of bazedoxifene compared with raloxifene in the treatment of postmenopausal osteoporotic women
Hiligsmann, Mickaël ULg; Ben Sedrine, Wafa ULg; Bruyère, Olivier ULg et al

in Osteoporosis International (2012, March), 23(Suppl. 2), 312-313

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See detailAn economic evaluation of strontium ranelate for the treatment of male osteoporosis
Hiligsmann, Mickaël ULg; Ben Sedrine, Wafa ULg; Bruyère, Olivier ULg et al

in Osteoporosis International (2012, March), 23(Suppl. 2), 305-306

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See detailSevere prevalent vertebral fractures predict subsequent vertebral and nonvertebral fractures: a 3-year prospective study
Bruyère, Olivier ULg; Roux, Christian; Nicolet, Delphine ULg et al

in Osteoporosis International (2012, March), 23(Suppl. 2), 361-362

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See detailSeverity of incident vertebral fracture and future fracture risk: a 3-year prospective study
Bruyère, Olivier ULg; Roux, Christian; Nicolet, Delphine ULg et al

in Osteoporosis International (2012, March), 23(Suppl. 2), 60-61

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See detailStructure modifying effects of strontium ranelate in knee osteoarthritis
Reginster, Jean-Yves ULg; Chapurlat, R; Christiaensen, C et al

in Osteoporosis International (2012, March), 23(S2), 58-59

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See detailDifference between total and intact assays for N-terminal propeptide of type I procollagen in renal impaired patients
CAVALIER, Etienne ULg; CARLISI, Ignazia ULg; ROUSSELLE, Olivier ULg et al

in Osteoporosis International (2012, March), 23(Supplement 2), 339

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See detailEstablishment of parathyroid hormone (PTH) reference on 10 different assay kits: impact of the recruitment of the population
CAVALIER, Etienne ULg; SOUBERBIELLE, Jean-Claude

in Osteoporosis International (2012, March), 23(Supplement 2), 360

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See detailStrontium ranelate uncouples bone formation from bone resorption in male osteoporotic patients
COLLETTE, Julien ULg; Reginster, Jean-Yves ULg

in Osteoporosis International (2012, March), 23(S2), 365-366

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See detailStrontium ranelate and risk of venous thromboembolism (VTE) : an update of a retrospective cohort study in the UK general practice research database (GPRD)
Cooper, C; Deltour, N; Speirs, C et al

in Osteoporosis International (2012, March), 23(S2), 364-365

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See detailEstimation of genetic parameters for methane indicator traits based on milk fatty acids in dual purpose Belgian blue cattle
Kandel, Purna Bhadra ULg; Soyeurt, Hélène ULg; Gengler, Nicolas ULg

in Communications in Agricultural and Applied Biological Sciences (2012, February 10), 77(1), 21-25

The genetic parameters of CH4 indicators were estimated by single trait test-day models from 16,825 records collected on Walloon Dual Purpose Belgium Blue cows in their first 3 lactations. Fatty acid ... [more ▼]

The genetic parameters of CH4 indicators were estimated by single trait test-day models from 16,825 records collected on Walloon Dual Purpose Belgium Blue cows in their first 3 lactations. Fatty acid based CH4 indicators published in the literature were predicted from milk mid-infrared spectra using 597 calibration samples. For the indicator showing the highest link (R2 =0.88) with SF6 CH4 data, the average daily heritability was 0.21, 0.20 and 0.10 for each lactation, respectively. The sire genetic variability was on average 2.82 kg2 of CH4 per lactation. The genetic difference between the sires having cows eructing higher and lower CH4 was 10 kg of CH4 averaged per lactation. In conclusion, CH4 indicators can be predicted by MIR and the genetic variability of these traits seems to exist. [less ▲]

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See detailApport des troponines T et I ultrasensibles dans le diabète
LE GOFF, Caroline ULg; LAURENT, Terry ULg; GARWEG, Christophe ULg et al

in Immuno-Analyse & Biologie Spécialisée [=IBS] (2012, February), 27(1), 40

Introduction : Le diabète atteint environ 3% de la population française. Or, cette maladie expose à l'apparition précoce de complications cardiovasculaires. Les troponines de nouvelles générations ... [more ▼]

Introduction : Le diabète atteint environ 3% de la population française. Or, cette maladie expose à l'apparition précoce de complications cardiovasculaires. Les troponines de nouvelles générations hautement sensibles pourraient être un bon outil diagnostic pour mettre en évidence des macroou micro-angiopathies non diagnostiquée chez ces patients. Le but de notre étude était de comparer la performance de la troponine T ultrasensible (hsTnT) (Roche Diagnostic) avec la troponine I ultrasensible (TnI II) (Abbott Diagnostic) chez le sujet diabétique. Matériel et méthodes : Vingt patients diabétiques (âge moyen : 52.6 ± 8.4 ans) ont été sélectionnés sur le critère d’un taux d’hémoglobine glyquée (HbA1c) élevé. Ces sujets ont été comparés à vingt sujets contrôles d’âge moyen : 60.05 ± 2.86 ans. Les patients atteints d’insuffisance rénale et d’affections cardiovasculaires ont été exclus. Les analyses ont été réalisées sur du plasma hépariné lithium. La hsTnT a été dosée par électrochemiluminescence sur le Modular E (Roche Diagnostic). Abbott utilise des microparticules chemiluminescentes pour le dosage de la TnI II sur l’ARCHITECT i. Résultats : Les sujets diabétiques ont un taux plasmatique de hsTnT représenté par les valeurs suivantes [médiane (1er quartile, 3ème quartile)] : 0,007 (0,03 ; 0,018) ng/mL ; alors que les sujets contrôles négatifs présentent les valeurs suivantes : 0,003 (0,003 ; 0,004) ng/mL. La différence de taux de hsTnT observée entre ces 2 populations est statistiquement significative (p = 0,000922). Pour la TnI II, on observe un taux plasmatique de: 0,004 (0,003 ; 0,075) ng/mL chez les sujets diabétiques et 0,002 (0,001 ; 0,005) ng/mL chez les sujets contrôles. La différence de taux de TnI II observée entre ces 2 populations n’est pas statistiquement significative (p > 0,005). Discussion-conclusion : Au décours d’un diabète, il apparait que les taux de hsTnT sont augmentés de façon significative par rapport au groupe des contrôles négatifs. Si les taux hsTnT augmentent chez le diabétique, il semblerait normal qu’il en soit de même pour la TnI II, vu que ces deux marqueurs sont intimement liés. Nous ne l’avons pas observé mais ceci peut être du à la plus faible performance analytique du dosage de la TnI II utilisé. Cette libération de hsTnT dans le sang peut être due aux micro- et macro-angiopathies au niveau des coronaires induites au cours d’un diabète. [less ▲]

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See detailA candidate cell of origin for cervical cancer
Herfs, Michael ULg; Yamamoto; Laury et al

in Modern Pathology : An Official Journal of the United States & Canadian Academy of Pathology, Inc (2012, February), 25(2), 4-552

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See detailDynamic Prediction of Energy Delivery Capacity of Power Networks : Unlocking the Value of Real-Time Measurements.
Schell, Peter; Jones, Lauren; Mack, Philippe et al

in Proceedings of the third IEEE PES Conference on Innovative Smart Grid Technologies (2012, January)

This paper describes recent advances in prediction software using advanced data-mining tools, and shows how this can significantly increase the operational value of the data gathered. These new tools ... [more ▼]

This paper describes recent advances in prediction software using advanced data-mining tools, and shows how this can significantly increase the operational value of the data gathered. These new tools allow for new operational procedures to be defined that increase the usages of the network without decreasing security of supply. We will use the example of dynamic line rating, i.e. determining the thermal rating of an overhead line based on real-time environmental parameters (temperature, wind speed & direction and solar radiation) to highlight how the use of numerical data-mining tools can help us reliably predict future behavior of power networks. [less ▲]

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See detailLa nécessité d'un inventaire du patrimoine culturel immatériel
Lempereur, Françoise ULg

in Géants d'ici et d'ailleurs (2012, January), (6-7), 24-30

Destinée essentiellement aux institutions et groupements qui ont en charge la sauvegarde du patrimoine culturel immatériel, cette présentation rapide justifie l'inventorisation de ce patrimoine, en ... [more ▼]

Destinée essentiellement aux institutions et groupements qui ont en charge la sauvegarde du patrimoine culturel immatériel, cette présentation rapide justifie l'inventorisation de ce patrimoine, en définit les responsabilités et propose une méthodologie de collectage et de mise à disposition publique des contenus [less ▲]

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See detailNodal staging of head and neck squamous cell carcinomas : impact of a dedicated PET/CT protocol.
MINON, AL.; CABAY, Jean-Evrard ULg; DEMEZ, Pierre ULg et al

in Journal of Nuclear Medicine (The) (2012), 53(SUPPL), 1354

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See detailNominal group technique to prioritize preferences for medication attributes from the patients’ perspective : the case of osteoporosis
Hiligsmann, Mickaël ULg; Van Durme, C; Geusens, P et al

in Annals of the Rheumatic Diseases (2012), 71(3), 597

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See detailPhase Change Memories challenges: A material and process perspective
Maitrejean, S.; Ghezzi, G.; Gourvest, E. et al

in IEEE International Interconnect Technology Conference (2012)

Among all the new memories concepts, Phase Change Memories (PCM) is one of the most promising. However, various challenges remain. This paper reviews the materials and processes required to face these ... [more ▼]

Among all the new memories concepts, Phase Change Memories (PCM) is one of the most promising. However, various challenges remain. This paper reviews the materials and processes required to face these challenges. As an example, attention will be made on the effect of Phase change material composition on stability of the amorphous phase i.e. on the retention of the information. Additionally, it is showed how specific processes such as CVD or ALD can be developed in order to minimize the current required to amorphize the phase change material i.e. to reset the device. Finally, with the perspectives of the advanced integration nodes, experimental results on the effect of scaling on phase transformation are presented and discussed. © 2012 IEEE. [less ▲]

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See detailExcited baryons in the 1/Nc expansion.
Matagne, Nicolas; Stancu, Floarea ULg

in AIP Conference Proceedings (2012), 1432

We briefly describe the 1/Nc expansion method for studying baryon masses. Two approaches of the large Nc excited baryons have been proposed so far. The first one, based on the Hartree picture, treats the ... [more ▼]

We briefly describe the 1/Nc expansion method for studying baryon masses. Two approaches of the large Nc excited baryons have been proposed so far. The first one, based on the Hartree picture, treats the baryon as a ground state core and an excited quark and the second one, suggested recently, considers the baryon globally, without decoupling the system. The masses of excited states of mixed orbital symmetry of nonstrange and strange baryons belonging to the lowest [70, −] multiplet are calculated in the 1/Nc expansion to order 1/Nc with the new method which allows to considerably reduce the number of linearly independent operators entering the mass formula. The status of the resonance Λ(1405) is discussed. [less ▲]

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See detailLANDSAFE: LANDING SITE RISK ANALYSIS SOFTWARE FRAMEWORK
Schmidt, Ralph; Bostelmann, Jonas; Cornet, Yves ULg et al

in International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (2012), XXXIX(B4), 505-510

The European Space Agency (ESA) is planning a Lunar Lander mission in the 2018 timeframe that will demonstrate precise soft landing at the polar regions of the Moon. To ensure a safe and successful ... [more ▼]

The European Space Agency (ESA) is planning a Lunar Lander mission in the 2018 timeframe that will demonstrate precise soft landing at the polar regions of the Moon. To ensure a safe and successful landing a careful risk analysis has to be carried out. This is comprised of identifying favorable target areas and evaluating the surface conditions in these areas. Features like craters, boulders, steep slopes, rough surfaces and shadow areas have to be identified in order to assess the risk associated to a landing site in terms of a successful touchdown and subsequent surface operation of the lander. In addition, global illumination conditions at the landing site have to be simulated and analyzed. The Landing Site Risk Analysis software framework (LandSAfe) is a system for the analysis, selection and certification of safe landing sites on the lunar surface. LandSAfe generates several data products including high resolution digital terrain models (DTMs), hazard maps, illumination maps, temperature maps and surface reflectance maps which assist the user in evaluating potential landing site candidates. This paper presents the LandSAfe system and describes the methods and products of the different modules. For one candidate landing site on the rim of Shackleton crater at the south pole of the Moon a high resolution DTM is showcased. * Corresponding [less ▲]

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See detailAppel au peuple/appel du public : décrire la réception comme une adresse
Servais, Christine ULg

in Questions de Communication (2012)

Par rapport à d'autres productions culturelles ou scientifiques, la particularité des médias de masse est qu'ils font quelque chose au peuple en faisant quelque chose du peuple, c'est-à-dire en le ... [more ▼]

Par rapport à d'autres productions culturelles ou scientifiques, la particularité des médias de masse est qu'ils font quelque chose au peuple en faisant quelque chose du peuple, c'est-à-dire en le représentant à lui-même. La construction mass-médiatique du "peuple" a donc une dimension pragmatique que les études de réception doivent intégrer. C'est à quoi s'attache cette communication, notamment à travers la notion d'adresse, issue du travail de J. Derrida, et celle de "partage du sensible" formalisée par Jacques Rancière. [less ▲]

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See detailComputer-based monitoring of global cardiovascular dynamics during acute pulmonary embolism and septic shock in swine
Revie, JA; Stevenson, D; Chase, JG et al

in Critical Care (2012), 16 (Suppl 1)

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See detailRelationship between changes in bone mineral density and incidence of fracture with 6 years of Denosumab treatment
Bolognese, MA; Miller, PD; Reginster, Jean-Yves ULg et al

in Arthritis and Rheumatism (2012), 64(S10), 847

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See detail139 DOES QUALITY OF RADIOTHERAPY PREDICT OUTCOMES OF MULTICENTRE CLINICAL TRIALS? THE EORTC RADIATION ONCOLOGY GROUP EXPERIENCE.
Fairchild, Alysa; Collette, Laurence; Hurkmans, Coen W. et al

in Radiotherapy & Oncology (2012), 102

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See detailAsphalt concrete with fly ashes of different sources as filler replacement
Stroeven, Piet; He, Huan ULg; Huu Hanh, Pham

in Key Engineering Materials [=KEM] (2012), 517

Paper presents and discusses data obtained in a testing program on the replacement of limestone powder in asphalt concretes by fly ashes. This would combine economic, environmental and technical benefits ... [more ▼]

Paper presents and discusses data obtained in a testing program on the replacement of limestone powder in asphalt concretes by fly ashes. This would combine economic, environmental and technical benefits. The finest fly ash of Vietnamese origin scored best. This is proposed due to the gap-graded design of the particulate mixture of coarse crushed rock fractions, fine fluvial sand and the mineral admixture. The test program encompassed Marshall tests, creep tests and splitting tensile tests. [less ▲]

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See detailEP-1420 ADAPTIVE CLINICAL COMMISSIONING OF MONACO VMAT: MAXIMIZING EFFICACY WITHOUT SACRIFICING SAFETY
GULYBAN, Akos ULg; Oltenau, A. M. L.; Vercauteren, T. et al

in Radiotherapy & Oncology (2012), 103

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See detailFrom Food Crisis to Analytical Strategies
Focant, Jean-François ULg

in Organohalogen Compounds (2012), 74

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See detailOC-0501 IRRADIATION OF THE LEFT VENTRICLE OF THE HEART IS CORRELATED WITH POST-TREATMENT DYSPNEA IN NSCLC PATIENTS
Nalbantov, G.; De Ruysscher, Dirk; Vandecasteele, K. et al

in Radiotherapy & Oncology (2012), 103

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See detailItem familiarity and controlled associative retrieval in Alzheimer’s disease: An fMRI study.
Genon, Sarah ULg; Collette, Fabienne ULg; Feyers, Dorothée ULg et al

in Frontiers in Human Neuroscience (2012)

Alzheimer’s disease (AD) is characterised by altered recollection function, with impaired controlled retrieval of associations. In contrast, familiarity-based memory for individual items may sometimes be ... [more ▼]

Alzheimer’s disease (AD) is characterised by altered recollection function, with impaired controlled retrieval of associations. In contrast, familiarity-based memory for individual items may sometimes be preserved in the early stages of the disease. This is the first study that directly examines whole brain regional activity during one core aspect of the recollection function: associative controlled episodic retrieval (CER), contrasted to item familiarity in AD patients. Cerebral activity related to associative CER and item familiarity in AD patients and healthy controls (HC) was measured with functional magnetic resonance imaging during a word-pair recognition task to which the process dissociation procedure was applied. Some patients had null CER estimates (AD–), whereas others did show some CER abilities (AD+), although significantly less than HC. In contrast, familiarity estimates were equivalent in the three groups. In AD+, as in controls, associative CER activated the inferior precuneus/posterior cingulate cortex (PCC). However, during associative CER, functional connection between this region and the hippocampus, the inferior parietal and dorsolateral prefrontal cortex (DLPFC) was significantly higher in HC than in AD+. In all three groups, item familiarity was related to activation along the intraparietal sulcus (IPS). In conclusion, whereas the preserved automatic detection of an old item (without retrieval of accurate word association) is related to parietal activation centred on the IPS, the inferior precuneus/PCC supports associative CER ability in AD patients, as in HC. However, AD patients have deficient functional connectivity during associative CER, suggesting that the residual recollection function in these patients might be impoverished by the lack of some recollection-related aspects such as autonoetic quality, episodic details and verification. [less ▲]

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See detail(18F)FPRGD2 PET/CT imaging of integrin αvβ3 in renal carcinomas : correlation with histopathology.
WITHOFS, Nadia ULg; SIGNOLLE, N.; NZARAMBA, EM. et al

in Journal of Nuclear Medicine (The) (2012), 53(SUPPL), 1647

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See detailThe elusiveness of multifragmentation footprints in 1-GeV proton-nucleus reactions
Mancusi, D; Boudard, A; Cugnon, Joseph ULg et al

in EPJ Web of Conferences (2012), 31

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See detailLes organisations d'aide et soins à domicile: des entreprises à haute valeur ajoutée
Defourny, Jacques ULg

in La Revue de l'Aide et des Soins à Domicile (2012), 131(mai-juillet), 24-27

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See detailEffects of environmental factors on yield and milking number in dairy cows milked by an automatic system located in pasture
Dufrasne, Isabelle ULg; Robaye, Vincent ULg; Knapp, Emilie ULg et al

in Grassland Science (2012), 17

A herd of 45 Holstein dairy cows was milked with an automatic milking system (AMS) located on a permanent pasture. The cows grazed from 22.06.2010 until 20.10.2010 on a rotational system. They were ... [more ▼]

A herd of 45 Holstein dairy cows was milked with an automatic milking system (AMS) located on a permanent pasture. The cows grazed from 22.06.2010 until 20.10.2010 on a rotational system. They were fetched twice a day to the AMS but they could also reach it freely. The sward height was measured at the entry and exit of each paddock. Data about daily milk yield and milking number were analysed according to a GLM including the effect of animal, days in paddock, distance between AMS and paddock, rotation cycle number and complementation. [less ▲]

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See detailOcytocine, hormone altruiste pleine de promesses ?
Scantamburlo, Gabrielle ULg

in Encéphale (L') (2012)

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See detailLa bone sialoproteine: un facteur clé dans la pathogénie de l'arthrose
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

in Revue du Rhumatisme (2012), 79(S), 106

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See detailDo root-emitted volatile organic compounds attract wireworms?
Barsics, Fanny ULg; Latine, Rémi ULg; Gfeller, Aurélie ULg et al

in Communications in Agricultural and Applied Biological Sciences (2012), 77(3), 561-567

Wireworms are the soil dwelling larvae of click beetles (Coleoptera: Elateridae). Their importance as crop pests increases since the efficient chemical means to control them cannot be considered anymore ... [more ▼]

Wireworms are the soil dwelling larvae of click beetles (Coleoptera: Elateridae). Their importance as crop pests increases since the efficient chemical means to control them cannot be considered anymore. Therefore, many integrated pest management strategies have been investigated in the past few years. Most of them rely on the understanding of the ecology of the click beetles during their whole life cycle. We focus our work on the chemical ecology of wireworms, more precisely on the root-emitted volatile organic compounds (VOCs) that might intervene in the food-searching process of the larvae by helping them to find a suitable host-plant or by acting as key factors in the belowground defence mechanism of the plant. Here, we present our first results of dual-choice orientation tests in olfactometric pipes. Wireworms (Agriotes sordidus Illiger) were submitted individually to a variety of olfactory baits ranging from entire barley roots (Hordeum vulgare L. var. Quench) to isolated VOCs identified as part of the emitting profile. The latter was described thanks to HS-SPME samplings and GC-MS analysis, for roots grown in the exact same conditions as for the olfactometric experimentations with entire roots. Most of the experimentations gave significant results. When confronted to volatiles emitted by entire roots, wireworms significantly orientated towards the bait (χ²-goodness-of-fit test, χ²=8, P-value=0.005). This result allowed us to follow up with the same device and to progressively vary the nature of the baits. Our protocol should be used for other plant-wireworm species combinations. Our results should be taken into account in varietal selection, in crop rotation, or in trapping systems aiming at the reduction of the populations of wireworms. [less ▲]

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See detailMemory impairments in dementia: Which memory and how does it fail?
Salmon, Eric ULg; Collette, Fabienne ULg; Genon, Sarah ULg et al

in Frontiers in Human Neuroscience (2012)

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See detailL'échec de la communication et les potentialités narratives
Servais, Christine ULg

in Traces (2012), 20

Cet article s'intéresse à la relation entre narration et communication. Il suggère que la frontière réel/fiction serait non pertinente relativement à une « efficacité » ou à une « réussite » de la ... [more ▼]

Cet article s'intéresse à la relation entre narration et communication. Il suggère que la frontière réel/fiction serait non pertinente relativement à une « efficacité » ou à une « réussite » de la communication. Plus précisément, il suppose que la non pertinence de l’opposition réel/fiction est au cœur de la réussite de la communication elle-même : telle est la seconde thèse. Encore faudra-t-il auparavant s’être entendu sur ce qu’est une communication « réussie », et pour ce faire reconsidérer cette question, en établissant une relation de dépendance réciproque entre ses « rites », qui cadrent et limitent l’interaction ainsi que l’a montré Goffman, et ses « risques » que sont la possibilité du dérapage, de la sortie du cadre, voire la difficulté à établir un cadre. C'est là la première thèse : pas de rites sans risques, et ce non pas parce l’échec ou l’accident pourraient toujours survenir, mais parce qu’ils sont constitutifs du rite lui-même. En définitive, cet article s'attache à montrer que l’échec de la communication est l’une des conditions de sa réussite, et qu’il est au cœur de la possibilité de la narration ainsi que de sa lecture. [less ▲]

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See detailL'injection intra-articulaire d'un biomatériau à base de chitosane prévient la progression de l'arthrose expérimentale induite par section du ligament croisé chez le lapin
Oprenyeszk, Frédéric ULg; Chausson, Mickael; Maquet, Véronique et al

in Revue du Rhumatisme (2012), 79(1), 108-109

Introduction La viscosupplémentation par injection intra-articulaire d’acide hyaluronique est recommandée dans le traitement de l’arthrose. Cependant, l’acide hyaluronique a une faible rémanence ... [more ▼]

Introduction La viscosupplémentation par injection intra-articulaire d’acide hyaluronique est recommandée dans le traitement de l’arthrose. Cependant, l’acide hyaluronique a une faible rémanence articulaire, ce qui limite son efficacité dans le temps. Dans ce travail, nous avons testé un nouveau biomatériau formé par le mélange de billes d’alginate-chitosane (AC) associées à un hydrogel visqueux synthétisé au départ de chitosane (H). Ce nouveau biomatériau breveté offre de nombreux avantages :1) biocompatible et non toxique, 2) composé exclusivement au départ de biopolymères d’origine non animale (chitosane et alginate), 3) les billes qui le composent sont élastiques, déformables et exercent un effet anti-inflammatoire et anti-catabolique sur les chondrocytes. Matériels et Méthodes L’arthrose a été induite chez le lapin HYLA albinos par la section du ligament croisé antérieur (LCA). Une semaine après l’intervention chirurgicale, les lapins ont été répartis dans trois groupes expérimentaux et ont bénéficié d’une injection intra-articulaire (900µl) des traitements suivants : billes AC associées à un hydrogel H (Groupe I ; n=7) ; hydrogel H seul (Groupe II ; n = 7) ; liquide physiologique (Groupe III ; n = 7). Des radiographies standards du genou en extension ont été réalisées avant l’intervention et pendant six semaines après l’intervention à raison d’une radiographie par semaine. Après 6 semaines de traitement, les animaux ont été euthanasiés et l’articulation prélevée. Une étude macroscopique du cartilage coloré à l’encre de Chine a été réalisée. Des coupes histologiques colorées à la Safranine-O/fast green provenant des zones portantes dans chaque compartiment ont été évaluées selon le score histologique de l’OARSI (Laverty et al., 2010). Résultats L’analyse des clichés radiologiques montrait une diminution significative (p<0,05) des signes radiologiques d’arthrose après 6 semaines dans le groupe I (billes AC + hydrogel H; 1,57 ± 0,2) en comparaison avec les groupe II (hydrogel H; 2,16 ± 0,47) et III (liquide physiologique ; 3,0 ± 0,43). La macroscopie révélait une tendance à l’amélioration de la taille et du grade des lésions dans le groupe I. La sévérité des lésions histologiques étaient significativement diminuée dans le groupe I (10,98 ± 0,72) par rapport au groupe II (14,43 ± 0,57 ; p<0,01) et au groupe III (14,79 ± 0,62 ; p<0,001). Cet effet était visible au niveau des condyles fémoraux et des plateaux tibiaux. Discussion L’injection intra-articulaire du mélange bille AC + hydrogel H est plus efficace que l’hydrogel H seul, ce qui suggère que les billes AC jouent un rôle dans l’efficacité de ce nouveau traitement. Cette nouvelle formulation pourrait être utilisée pour le traitement par viscosupplémentation de l’arthrose chez l’homme. Conclusion Le nouveau biomatériau formé par le mélange de billes AC et d’un hydrogel visqueux à base de chitosane prévient la progression de l’arthrose chez le lapin. [less ▲]

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See detailCO2 total column retrieval by mid-IR FT Spectroscopy
Buschmann, M; Dohe, S; Mahieu, Emmanuel ULg et al

in Geophysical Research Abstracts (2012), 14

Over the last decade ground-based remote sensing measurements of CO2 have been established as an important component in the global observing system for greenhouse gases. Since 2004 the Total Carbon Column ... [more ▼]

Over the last decade ground-based remote sensing measurements of CO2 have been established as an important component in the global observing system for greenhouse gases. Since 2004 the Total Carbon Column Observing Network (TCCON) sites have provided CO2 retrievals in the near-IR region. CO2 can also be retrieved in the mid-IR spectral region and it would be of great benefit to use these spectra to produce CO2-data of sufficient precision. With this, 20 years of additional observations obtained in the mid-IR at a suite of FT-IR sites of the Network Detection of Atmospheric Composition Change (NDACC) will be accessible. We investigated a series of different CO2 microwindows in the mid-IR spectral region and present results from the most promising candidates for a showcase FT-IR site (Ny Alesund). Limitations of the approach are outlined and the feasibility of a future Mid-IR CO2-product of sufficient precision is discussed. [less ▲]

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See detailOptimization of thermal material in a flux pump system with high temperature superconductor
Hsu, C. H.; Yan, Y; Hadeler, O. et al

in IEEE Transactions on Applied Superconductivity (2012), 22(3), 7800404

Superconductors are known for the ability to trap magnetic field. A thermally actuated magnetization (TAM) flux pump is a system that utilizes the thermal material to generate multiple small magnetic ... [more ▼]

Superconductors are known for the ability to trap magnetic field. A thermally actuated magnetization (TAM) flux pump is a system that utilizes the thermal material to generate multiple small magnetic pulses resulting in a high magnetization accumulated in the superconductor. Ferrites are a good thermal material candidate for the future TAM flux pumps because the relative permeability of ferrite changes significantly with temperature, particularly around the Curie temperature. Several soft ferrites have been specially synthesized to reduce the cost and improve the efficiency of the TAM flux pump. Various ferrite compositions have been tested under a temperature variation ranging from 77K to 300K. The experimental results of the synthesized soft ferrites-Cu0.3Zn0.7Ti0.04Fe1.96O4, including the Curie temperature, magnetic relative permeability and the volume magnetization (emu/cm3), are presented in this paper. The results are compared with original thermal material, gadolinium, used in the TAM flux pump system.-Cu0.3Zn0.7Ti0.04Fe1.96O4 holds superior characteristics and is believed to be a suitable material for next generation TAM flux pump. © 2011 IEEE. [less ▲]

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See detailIntegrated prism-free coupled surface plasmon resonance biochemical sensor
Lenaerts, Cedric ULg; Hastanin, Juriy ULg; Pinchemel, Bernard et al

in Proceedings of SPIE (2012), 8424

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See detailChemical control of Haplodiplosis marginata von Roser (Diptera : Cecidomyiidae)
Censier, Florence ULg; Chavalle, Sandrine; Wittouck, Daniel et al

in Communications in Agricultural and Applied Biological Sciences (2012), 78(4), 667-675

The saddle gall midge, Haplodiplosis marginata (von Roser), has been detected in Belgium since 2010, after several decades without any reporting. It had indeed caused serious damages between 1965 and 1970 ... [more ▼]

The saddle gall midge, Haplodiplosis marginata (von Roser), has been detected in Belgium since 2010, after several decades without any reporting. It had indeed caused serious damages between 1965 and 1970. This insect is a European cereal pest whose larvae feed on stems and engender saddle-shaped depressions, resulting in yield losses. Face with the resurgence of this pest, it was decided to study its spatial distribution and, because serious damages were observed in some regions, to develop effective curative control. To date, chemical protection seems to be the only immediate solution in case of heavy emergences. Experimentation was conducted in a highly infested field (Meetkerke, Belgian Polders), according to a randomized complete blocks arrangement with four replications. Foremost, a lambdacyhalothrin-based insecticide was used to evaluate efficiency of several protection schemes, ranging between one and four spray(s). The large spread of flights observed during the 2011 spring allowed to highlight the effect of treatment date on the attack intensity and also on the galls distribution along the stem, on the different internodes: the lower internodes were protected by the early sprayings, while last sprayings induced reduction of galls number on the upper internodes. Moreover, several insecticides already registrated in cereals against aphids were compared for their efficacy against saddle gall midge. Studied pyrethroids have shown a very good efficacy, ranging between 75 % and 87 %, when applied twice with a 2 weeks interval. To be efficient, insecticide applications must thus be synchronized with the flights and egg-laying periods. Monitoring the phenology of flights is thus essential as part of integrated pest management against saddle gall midge. [less ▲]

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See detailParticle packing density and limestone fillers for more sustainable cement
He, Huan ULg; Courard, Luc ULg; Pirard, Eric ULg

in Key Engineering Materials [=KEM] (2012), 517

Cement blending with mineral admixtures, especially with byproduct or waste product powder, can effectively reduce consumption of cement and promote the ecology. Recently, an innovative concept was ... [more ▼]

Cement blending with mineral admixtures, especially with byproduct or waste product powder, can effectively reduce consumption of cement and promote the ecology. Recently, an innovative concept was proposed to replace of “coarse” cement grains by the inert fillers for sustainable cement in the low w/c concrete cement. As a basic mechanism, particle packing plays an important role in such replacement or blending. In the first part of study, the paper discusses the particle packing aspect of cement grains, limestone filler (LF) and LF blended cement. The new developed wet packing method and a dry packing method are proposed for the evaluation purpose. The paper presents results of packing tests with the influences of PSD, cement type, vibration, mixing, blending proportions, etc. The advantages and limitations of two packing methods are also discussed in this paper. [less ▲]

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See detailSpurrite, tilleyite and associated minerals in the exoskarn zone from Cornet Hill (Metalliferi Massif, Apuseni Mountains, Romania).
Marincea, Stefan ULg; Dumitras, Delia; Calin, Nicolas et al

in Geophysical Research Abstracts (2012), 14

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See detailDo all negative images similarly retain attention? Time course of attentional disengagement from disgust- and fear-evoking stimuli.
Devue, Christel ULg; Van Hooff, Johanna; Vieweg, Paula et al

in Perception (2012), 41(ECVP abstract suppl.), 133

While disgust and fear are both negative emotions, they are characterized by different physiology and action tendencies, which might in turn lead to different attentional biases. However, the potential ... [more ▼]

While disgust and fear are both negative emotions, they are characterized by different physiology and action tendencies, which might in turn lead to different attentional biases. However, the potential disgusting aspect of threatening stimuli has somehow been neglected which might contribute to discrepancies in the literature. The goal of this study was to examine whether fear- and disgust-evoking images produce different attentional disengagement patterns. We pre-selected IAPS images according to their disgusting, frightening, or neutral character and presented them as central cues while participants had to identify a target letter briefly appearing around them. To investigate the time course of disengagement from those central images, we used 4 different cue-target intervals (200, 500, 800 and 1100 ms). Reaction times were significantly longer with the disgust-evoking images than with neutral- and fear-evoking images at the 200 ms interval only. This suggests that only disgust- and not fear-related images hold participants'attention for longer. This might be related to the need to perform a more comprehensive risk-assessment of disgust-evoking pictures. These results have important implications for future emotion-attention research as they indicate that a more careful selection of stimulus materials that goes beyond the dimensions of valence and arousal is needed. [less ▲]

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See detailCorrection of vitamin D insufficiency with the fixed daily combination strontium ranelate 2 g/vitamin D3 1000 IU over 12 months
Rizzoli, R; Dawson-Hughes, B; Kaufman, JM et al

in Arthritis and Rheumatism (2012), 64(S10), 835

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See detailBone sialoprotein: a key mediator of the angiogenic activity of hypertrophic osteoarthritic chondrocytes
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Baudouin, Caroline et al

in Osteoarthritis and Cartilage (2012), 20(S), 122-123

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See detailStudy of the factors involved in the aggregation of Harmonia axyridis Pallas (Coleoptera : Coccinellidae)
Durieux, Delphine ULg; Fischer, Christophe ULg; Deneubourg, Jean-Louis et al

in Communications in Agricultural and Applied Biological Sciences (2012), 77(1), 101-104

The aggregative behaviour of the multicoloured Asian ladybeetle, Harmonia axyridis Pallas, during winters, is still misunderstood. Our study was focused on the chemical and physical factors involved in ... [more ▼]

The aggregative behaviour of the multicoloured Asian ladybeetle, Harmonia axyridis Pallas, during winters, is still misunderstood. Our study was focused on the chemical and physical factors involved in the selection of its aggregation sites. Chemical and behavioural analyses highlighted that long-chain hydrocarbons lead congeners towards aggregations and ensure the cohesion of the cluster. On the other hand, we investigated the influence of (1) the density of individuals and (2) the quality of available shelters on H. axyridis decision to settle and aggregate under shelters. A binary choice experiment conducted in laboratory highlighted a permanent aggregative behaviour of H. axyridis, even during non-wintering conditions, and the existence of social interactions between individuals. [less ▲]

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See detailTi impact in C-doped phase-change memories compliant to Pb-free soldering reflow
Perniola, L.; Noe, Pascal ULg; Hubert, Q. et al

in Technical Digest - International Electron Devices Meeting, IEDM (2012)

In this paper, we present a thorough physical-chemical analysis of an engineered PCM stack, where the integration of C-doping and the use of a Ti top layer allow obtaining an Amorphous As-Deposited (A-AD ... [more ▼]

In this paper, we present a thorough physical-chemical analysis of an engineered PCM stack, where the integration of C-doping and the use of a Ti top layer allow obtaining an Amorphous As-Deposited (A-AD) phase stable against Back End-Of-Line (BEOL) thermal budget. This PCM stack is then integrated in devices, which are extensively tested in order to validate a novel pre-coding technique compliant to the Pb-free soldering reflow issue. Finally, an original design to optimize the distribution dispersion is presented. © 2012 IEEE. [less ▲]

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See detailPotentiality of using microbial biosensors for the detection of substrate heterogeneities and the assessment of microbial viability in industrial bioreactors: a complete set of experiments in chemostat and scale-down reactors, and elaboration of a mini scale-down platform
Brognaux, Alison ULg; Neubauer, Peter; Twizere, Jean-Claude ULg et al

in Communications in Agricultural and Applied Biological Sciences (2012), 77(1), 3-7

Substrate limitation responsive biosensors have been used in order to detect spatial substrate heterogeneities, , inside industrial bioreactors (whole-cell biosensor). Three green fluorescent protein (GFP ... [more ▼]

Substrate limitation responsive biosensors have been used in order to detect spatial substrate heterogeneities, , inside industrial bioreactors (whole-cell biosensor). Three green fluorescent protein (GFP) transcriptional reporters have been chosen in E.coli, i.e. uspA::gfp, csiE::gfp and yciG::gfp. The promoter uspA is induced in response to a variety of stresses whereas the two other promoters, csiE and yciG, are supposed to be more specific in front of a substrate limitation. The responsiveness of these biosensors has been assessed in chemostat reactor. Secondly, the same biosensors have been tested in well-mixed laboratory reactors and in scale-down reactors able to reproduce industrial conditions. Finally, a mini scale-down platform has been proposed as a high throughput tool to investigate rapidly the usefulness of a given microbial biosensor. Local heterogeneities in mini-bioreactor have caused a decrease of GFP expression, as in scale-down reactor. The presence of GFP in supernatants was noticed and this leakage seems to be correlated with the membrane permeability. [less ▲]

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See detailAcute exposure to blue-enriched light impacts on melatonin and sleep in humans
Chellappa, Sarah Laxhmi ULg; Steiner, Roland; Oelhafen, Peter et al

in Journal of Sleep Research (2012)

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See detailEffects of Strontium ranelate on knee osteoarthritis pain : a responder analysis
Reginster, Jean-Yves ULg; Chapurlat, R; Bellamy, N et al

in Arthritis and Rheumatism (2012), 64(S10), 110

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See detailLe rôle du concept de Tendenz dans l'analyse husserlienne de la fondation à l'époque des Recherches logiques
Gyemant, Maria ULg

in Bulletin d'Analyse Phénoménologique (2012), 8(N°1), 183-201

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See detailThe C2-hydrocarbon link in cometary comae
Weiler, M.; Bockelée-Morvan, D.; Hutsemekers, Damien ULg et al

in EPSC Abstract 2012 (2012)

Comet 8P/Tuttle was the target of an ESO multiwavelength observing campaign in 2008. Observations of the spatial distribution of C2 and C3 were obtained, as well as simultaneous direct detections of the ... [more ▼]

Comet 8P/Tuttle was the target of an ESO multiwavelength observing campaign in 2008. Observations of the spatial distribution of C2 and C3 were obtained, as well as simultaneous direct detections of the C2 parent species C2H2 and C2H6. We combine these observations to investigate the origin of cometary C2. The observed C2 column densities are inconsistent with a production of C2 from C2H2, C2H6, and C3. Based on a photochemical model, we quantitatively discuss the influence of further potential C2 parent species. The assumption of C4H2 as an additional C2 parent species in comet 8P/Tuttle provides the best explanation for the observed C2 column densities. [less ▲]

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See detailMicro and macroscopic investigation to quantify tillage impact on soil hydrodynamic behaviour
Beckers, Eléonore ULg; Roisin, Chrsitian; Plougonven, Erwan ULg et al

in Geophysical Research Abstracts (2012), 14

Nowadays, tillage simplification is an increasing practice. Many advantages are cited in the literature, such as energy saving, soil conservation etc. Agricultural management practices influence soil ... [more ▼]

Nowadays, tillage simplification is an increasing practice. Many advantages are cited in the literature, such as energy saving, soil conservation etc. Agricultural management practices influence soil structure, but consequent changes in soil hydrodynamic behaviour at the field scale are still not well understood. Many studies focus only on macroscopic measurements which do not provide mechanistic explanations. Moreover, research shows divergent conclusions over structure modification. The aim of this work is to fill this gap by quantifying soil structure modification depending on tillage intensity through both macroscopic and microscopic measurements, the latter improving our comprehension of the fundamental mechanisms involved. [less ▲]

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See detailChemical control of Haplodiplosis marginata (Diptera: Cecidomyiidae)
Censier, Florence ULg; Chavalle, Sandrine; Wittouck, Daniël et al

in Communications in Agricultural and Applied Biological Sciences (2012), 77(4), 667-675

The saddle gall midge, Haplodiplosis marginata (von Roser), has been detected in Belgium since 2010, after several decades without any reporting. It had indeed caused serious damages between 1965 and 1970 ... [more ▼]

The saddle gall midge, Haplodiplosis marginata (von Roser), has been detected in Belgium since 2010, after several decades without any reporting. It had indeed caused serious damages between 1965 and 1970. This insect is a European cereal pest whose larvae feed on stems and engender saddle-shaped depressions, resulting in yield losses. Face with the resurgence of this pest, it was decided to study its spatial distribution and, because serious damages were observed in some regions, to develop effective curative control. To date, chemical protection seems to be the only immediate solution in case of heavy emergences. Experimentation was conducted in a highly infested field (Meetkerke, Belgian Polders), according to a randomized complete blocks arrangement with four replications. Foremost, a lambdacyhalothrin-based insecticide was used to evaluate efficiency of several protection schemes, ranging between one and four spray(s). The large spread of flights observed during the 2011 spring allowed to highlight the effect of treatment date on the attack intensity and also on the galls distribution along the stem, on the different internodes: the lower internodes were protected by the early sprayings, while last sprayings induced reduction of galls number on the upper internodes. Moreover, several insecticides already registrated in cereals against aphids were compared for their efficacy against saddle gall midge. Studied pyrethroids have shown a very good efficacy, ranging between 75 % and 87 %, when applied twice with a 2 weeks interval. To be efficient, insecticide applications must thus be synchronized with the flights and egg-laying periods. Monitoring the phenology of flights is thus essential as part of integrated pest management against saddle gall midge. [less ▲]

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See detailCampagnes de sensibilisation au dépistage du diabète de type 2 dans les pharmacies. Comparaison de deux approches : glycémie capillaire et grille Findrisc
Böhme, P; Agrinier, N; Badia, M et al

in Diabètes & Métabolism (2012), 38(2), 7

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See detailLight impact on cognitive brain function depends on circadian phase, sleep pressure and PER3 polymorphism
Vandewalle, Gilles ULg

in Journal of Sleep Research (2012), 21(Suppl. 1),

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See detailA Search For 15NH2 Lines In Comet C/2002 T7 (LINEAR)
Rousselot, Philippe; Pirali, O.; Jehin, Emmanuel ULg et al

in Bulletin of the American Astronomical Society (2012), 44

The determination of isotopic ratios in comets is of primary importance for a good understanding of their origin and the formation of solar system. The [SUP]14[/SUP]N/[SUP]15[/SUP]N ratio is an ... [more ▼]

The determination of isotopic ratios in comets is of primary importance for a good understanding of their origin and the formation of solar system. The [SUP]14[/SUP]N/[SUP]15[/SUP]N ratio is an interesting tracer, because of its variability among various solar system bodies. So far it has only been measured in bright comets through optical observations of the CN radical (Arpigny et al., 2003; Manfroid et al., 2009) and millimeter observations of HCN (Bockelée-Morvan et al., 2005, 2008). The measurements give for both species the same non-terrestrial isotopic composition ([SUP]14[/SUP]N/[SUP]15[/SUP]N≈150 in comets versus 272 in the Earth atmosphere), but HCN and CN are minor species. In order to get a determination of this ratio in another molecule we have searched for [SUP]15[/SUP]NH[SUB]2[/SUB] lines in a high-resolution and high signal-to-noise ratio spectrum of comet C/2002 T7 (LINEAR) obtained with the UVES spectrometer at the VLT ESO 8-m telescope (Hutsemékers et al., 2008). This work is based on a new laboratory experiment conducted with the AILES beamline spectrometer at synchrotron SOLEIL to determine the [SUP]15[/SUP]NH[SUB]2[/SUB] wavelengths by Fourier transform spectroscopy. We will present the first results obtained from these data, which have allowed to search for the first time [SUP]15[/SUP]NH[SUB]2[/SUB] emission lines in a comet. References: Arpigny et al., 2003, Science, 301, 1522 Bockelée-Morvan et al.,2005, in Comets II, ed. M. C. Festou, H. U. Keller, & H. A. Weaver (Tucson: Univ. Arizona Press), 391 Bockelée-Morvan et al., 2008, ApJ, 679, L49 Hutsemékers et al., 2008, A&A 490, L31 Manfroid et al., 2009, A&A 503, 613 [less ▲]

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See detailRetrievals of ethane from ground-based high-resolution FTIR solar observations with updated line parameters: determination of the optimum strategy for the Jungfraujoch station.
Bader, Whitney ULg; Perrin, Agnès; Jacquemart, David et al

in Geophysical Research Abstracts (2012), 14(EGU2012-9126),

Ethane (C2H6) is the most abundant Non-Methane HydroCarbon (NMHC) in the Earth’s atmosphere, with a lifetime of approximately 2 months. C2H6 has both anthropogenic and natural emission sources such as ... [more ▼]

Ethane (C2H6) is the most abundant Non-Methane HydroCarbon (NMHC) in the Earth’s atmosphere, with a lifetime of approximately 2 months. C2H6 has both anthropogenic and natural emission sources such as biomass burning, natural gas loss and biofuel consumption. Oxidation by the hydroxyl radical is by far the major C2H6 sink as the seasonally changing OH concentration controls the strong modulation of the ethane abundance throughout the year. Ethane lowers Cl atom concentrations in the lower stratosphere and is a major source of peroxyacetyl nitrate (PAN) and carbon monoxide (by reaction with OH). Involved in the formation of tropospheric ozone and in the destruction of atmospheric methane through changes in OH, C2H6 is a non-direct greenhouse gas with a net-global warming potential (100-yr horizon) of 5.5. The retrieval of ethane from ground-based infrared (IR) spectra is challenging. Indeed, the fitting of the ethane features is complicated by numerous interferences by strong water vapor, ozone and methane absorptions. Moreover, ethane has a complicated spectrum with many interacting vibrational modes and the current state of ethane parameters in HITRAN (e.g. : Rothman et al., 2009, see http://www.hitran.com) was rather unsatisfactory in the 3 µm region. In fact, PQ branches outside the 2973–3001 cm-1 range are not included in HITRAN, and most P and R structures are missing. New ethane absorption cross sections recorded at the Molecular Spectroscopy Facility of the Rutherford Appleton Laboratory (Harrison et al., 2010) are used in our retrievals. They were calibrated in intensity by using reference low-resolution spectra from the Pacific Northwest National Laboratory (PNNL) IR database. Pseudoline parameters fitted to these ethane spectra have been combined with HITRAN 2004 line parameters (including all the 2006 updates) for all other species encompassed in the selected microwindows. Also, the improvement brought by the update of the line positions and intensities of methyl chloride (CH3Cl) in the 3.4 m region (Bray et al., 2011) will be quantified. The ethane a priori volume mixing ratio (VMR) profile and associated covariance are based on synthetic data from the chemical transport model (CTM) of the University of Oslo. In this contribution, we will present updated ethane total and tropospheric column retrievals, using the SFIT-2 algorithm (v3.91) and high-resolution Fourier Transform Infrared (FTIR) solar absorption observations recorded with a Bruker 120HR instrument, at the high altitude research station of the Jungfraujoch (46.5°N, 8°E, 3580 m asl), within the framework of the Network for the Detection of Atmospheric Composition Change (NDACC, visit http://www.ndacc.org). We will characterize three microwindows encompassing the strongest ethane features after careful selection of a priori VMR profiles, spectroscopic parameters, accounting at best for all interfering species. We will then present the retrieval strategy representative of the best combination of those three characterized micro-windows in order to minimize the fitting residuals while maximizing the information content, the precision and the reliability of the retrieved product. The long-term C2H6 column time series will be produced using the Jungfraujoch observational database. Comparisons with synthetic data produced by two chemical transport model (CHASER and the one of the University of Oslo) will also be presented and analyzed, aiming at the determination and interpretation of long-term trends and interannual variations of ethane at Northern mid-latitudes. [less ▲]

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See detailCompression test for metal characterization using digital image correlation and inverse modeling
Tuninetti Vásquez, Victor ULg; Gilles, Gaëtan ULg; Péron-Lührs, Vincent ULg et al

in Procedia IUTAM (2012)

In the case of sheet metal characterization, compression tests at normal direction of the sheet can be done by means of the layer compression test. Circular cylinder specimens are commonly used for ... [more ▼]

In the case of sheet metal characterization, compression tests at normal direction of the sheet can be done by means of the layer compression test. Circular cylinder specimens are commonly used for compression test but the complicated layer alignment is time consuming and may induce a wrong anisotropy characterization. This final goal explains the interest of working on elliptic shape. In this article, an elliptical cylinder specimen is proposed and tested for bulk Titanium alloy. Full-field optical technique (3D Digital Image Correlation) is used for displacement measurements by means of three camera systems (Limess), which allows out-of-plane displacement/strain fields on around 300° of the specimen. The use of this technique easily provides accurate barreling profile used to compute Coulomb friction coefficient by using inverse method. [less ▲]

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See detailHow could Mosan agriculture be impacted by climate change and future droughts?
Bauwens, Alexandra ULg; Sohier, Catherine ULg; Deraedt, Deborah ULg et al

in Geophysical Research Abstracts (2012), 14

Despite the great uncertainties regarding the future climatic context, lots of studies have focused on hydrological effects of climate change on the Meuse catchment. It appears that both winter high flows ... [more ▼]

Despite the great uncertainties regarding the future climatic context, lots of studies have focused on hydrological effects of climate change on the Meuse catchment. It appears that both winter high flows and summer low flows could be exacerbated. Climate change and its impacts on hydrology will thus affect various socio-economic sectors. High flows have been widely studied compared to low-flows. This poster will put the emphasis on a methodology developed in order to study impacts of droughts on agriculture. Agriculture is among the most impacted sectors due to climate change. The consequences could be both positive as negative in accordance with the range of predicted changes and the adaptation capacity of agricultural systems. Most of the existing studies related to climate change on agriculture focused on specific territory. Within the AMICE Interreg IVB project, a transnational approach has been developed to assess droughts impacts on agriculture through the Meuse basin. The project’s previous works gave us a common scenario of climate trends and of the evolution of the hydrology in the Meuse basin. The methodology is based on the use of a physically-based model able to simulate the water-soil-plant continuum (derived from EPIC model). In order to be transferable from one country to another, the methodology proposed used data available at the basin scale. The UE soil data base was complemented with local information on agricultural practices and statistics. Three crops have been studied: maize, wheat and barley. The basic cultural calendar is supposed to be the same for the different countries. The methodology developed permits to study the evolution of yields, leaf area index, crops stress due to excess or lack of water through time under different scenarios build up in the frame of the project. It appears that corn is negatively affected by climate change, and thus despite the CO2 fertilization effect. Wheat and barley have similar behavior and are positively affected by climate change and CO2 fertilization. Leaf Area Index study reveals that the different crops start earlier and reach earlier maturity. These first results will be completed with other economic sectors’analysis like drinkable water production, electricity production and navigation. Therefore, the project will progress towards a better understanding of economic effects of future droughts and low-flows. [less ▲]

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See detailA short introduction to spallation reactions
Cugnon, Joseph ULg

in Few-Body Systems (2012), 53(1-2), 142-152

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See detailModelling of agricultural diffuse pollution and mitigation measures effectiveness inWallonia (Belgium)
Sohier, Catherine ULg; Deraedt, Deborah ULg; Degré, Aurore ULg

in Geophysical Research Abstracts (2012), 14(EGU2012), 9672

Implementation of European directives in the environmental field and, specially, in the water management field, generates a request from policy-makers for news tools able to evaluate impact of management ... [more ▼]

Implementation of European directives in the environmental field and, specially, in the water management field, generates a request from policy-makers for news tools able to evaluate impact of management measures aiming at reducing pressures on ecosystems. In Wallonia (Southern Region of Belgium), the Nitrate Directive (EEC/676/91) was transposed into the “Walloon action plan for nitrogen sustainable management in agriculture” (PGDA1) in 2002. In 2007, a second plan was launched to reinforce some topics (PGDA2). Furthermore, the goal of “good quality” of surface waters and groundwater imposed by the Water Framework Directive poses new challenges in water management. In this context, a “soil and vadose” hydrological model is used in order to evaluate diffuse pollutions and efficiency of mitigation measures. This model, called EPICgrid, has been developed at catchment scale with an original modular concept on the basis of the field scale “water-soil-plant” EPIC model (Williams J.R., Jones C.A., Dyke P.T. (1984). A modelling approach to determining the relationship between erosion and soil productivity. Transactions of the ASAE. 27, 129-144). The model estimates, for each HRU identified into a 1km2 grid, water and nutrients flows into the plant-soil-vadose zone system (Sohier C., Degré A., Dautrebande S. (2009). From root zone modelling to regional forecasting of nitrate concentration in recharge flows – The case of the Walloon Region (Belgium). Journal of Hydrology, Volume 369, Issues 3-4, 15 May 2009, Pages 350-359). The model is used to make prospective simulations in order to evaluate the impact of measures currently performed to reduce the effect of diffuse pollution on water surface quality and groundwater quality, at regional scale. Response of the soil-vadose zone to agricultural practices modification is analyzed for the deadlines of the Water Framework Directive: 2015, 2021 and 2027, taking into account two climatic scenarios. Simulations results showed that actual measures are not sufficient in some areas and that new actions are necessary. The EPICgrid model was also used to evaluate effectiveness of further measures that could be implemented in order to reduce agricultural diffuse pollution. The increasing of catch crops in vulnerable zones has shown a limited impact in theWalloon context. The modifications of agricultural practices such as crop rotations or mineral fertilizing amounts have shown a more significant impact on water quality. Furthermore, the farmers’ practices are evaluated each year by a measuring campaign of the soil nitrogen residue after harvest. These data allow us to improve the representativeness of the EPICgrid model in areas in which agricultural practices largely differs from regional statistics. [less ▲]

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See detailEtude de l'imprégnation d'une population générale belge en bisphénol A, triclosan et 4-nonylphénol
PIRARD, Catherine ULg; SAGOT, Clémence ULg; DEVILLE, Marine ULg et al

in Annales de Toxicologie Analytique (2012), 24(4),

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See detailDark Matter in a SUSY Left-Right Model
Vicente, Avelino ULg

in Journal of Physics: Conference Series (2012), 375

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See detailLong-term series of tropospheric water vapour amounts and HDO/H2O ratio profiles above Jungfraujoch
Lejeune, Bernard ULg; Mahieu, Emmanuel ULg; Schneider, Matthias et al

in Geophysical Research Abstracts (2012), 14

Water vapour is a crucial climate variable involved in many processes which widely determine the energy budget of our planet. In particular, water vapour is the dominant greenhouse gas in the Earth’s ... [more ▼]

Water vapour is a crucial climate variable involved in many processes which widely determine the energy budget of our planet. In particular, water vapour is the dominant greenhouse gas in the Earth’s atmosphere and its radiative forcing is maximum in the middle and upper troposphere. Because of the extremely high variability of water vapour concentration in time and space, it is challenging for the available relevant measurement techniques to provide a consistent data set useful for trend analyses and climate studies. Schneider et al. (2006a) showed that ground-based Fourier Transform Infrared (FTIR) spectroscopy, performed from mountain observatories, allows for the detection of H2O variabilities up to the tropopause. Furthermore, the FTIR measurements allow the retrieval of HDO amounts and therefore the monitoring of HDO/H2O ratio profiles whose variations act as markers for the source and history of the atmospheric water vapour. In the framework of the MUSICA European project (Multi-platform remote Sensing of Isotopologues for investigating the Cycle of Atmospheric water, http://www.imk-asf.kit.edu/english/musica.php), a new approach has been developed and optimized by M. Schneider and F. Hase, using the PROFFIT algorithm, to consistently retrieve tropospheric water vapour profiles from high-resolution ground-based infrared solar spectra and so taking benefit from available long-term data sets of ground-based observations. The retrieval of the water isotopologues is performed on a logarithmic scale from 14 micro-windows located in the 2600-3100 cm-1 region. Other important features of this new retrieval strategy are: a speed dependant Voigt line shape model, a joint temperature profile retrieval and an interspecies constraint for the HDO/H2O profiles. In this contribution, we will combine the quality of the MUSICA strategy and of our observations, which are recorded on a regular basis with FTIR spectrometers, under clear-sky conditions, at the NDACC site (Network for the Detection of Atmospheric Composition Change, http://www.ndacc.org) of the Jungfraujoch International Scientific Station (Swiss Alps, 46.5°N, 8.0°E, 3580m asl). Information content analysis of the retrieved H2O products allows us to produce a long-term trend from 1996 to 2011 for different tropospheric levels. We will compare the annual cycle of tropospheric HDO/H2O ratio profiles with those already produced at other sites (Schneider et al., 2010). We will also focus on the diurnal variability of water vapour to determine a time limit in the inter-comparison of different water vapour measurement techniques. [less ▲]

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See detailThe neural correlates of recollection and familiarity during aging
Angel, Lucie; Bastin, Christine ULg; Genon, Sarah ULg et al

in Frontiers in Human Neuroscience (2012)

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See detailImproving physical education teachers’ action with overweight students
Cloes, Marc ULg

in Revista Motricidade (2012), 8(S1), 3-4

Nowadays, overweight is one of the most important plagues and many authors believe that the fast increase of this phenomenon during the last decades can be considered as a global epidemic. School has been ... [more ▼]

Nowadays, overweight is one of the most important plagues and many authors believe that the fast increase of this phenomenon during the last decades can be considered as a global epidemic. School has been identified as one of the pillars of the necessary multisectorial approach that must be implemented to fight against this ineworable trend. ... [less ▲]

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See detailEstimation of genetic parameters for birth weight, pre-weaning mortality and hot carcass weight in a crossbred population of pigs
Dufrasne, Marie ULg; Misztal, Ignacy; Tsuruta, Shogo et al

in Journal of Animal Science (2012), 90(E-Suppl.3), 721

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See detailMeasurement of PCB-153 and DDE in 20 μL dried-blood spots
L'Homme, Benjamin ULg; Focant, Jean-François ULg

in Organohalogen Compounds (2012), 74

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See detailIsoform 111 of vascular endothelial growth factor (VEGF111) improves angiogenesis of ovarian tissue xenotransplantation
Labied, Soraya ULg; Delforge, Yves ULg; Blacher, Silvia ULg et al

in Journal of Assisted Reproduction & Genetics (2012), 28(11), 1009

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See detailMagnetic properties of nanosized MgFe2O4 powders prepared by auto-combustion
Ghelev, Ch; Koutzarova, T.; Kolev, S. et al

in Journal of Physics: Conference Series (2012), 356(1), 012048

Targets were prepared to be used for magnetron sputtering and laser ablation and their microstructural and magnetic properties were investigated. The base material was nanosized MgFe2O4 powder produced by ... [more ▼]

Targets were prepared to be used for magnetron sputtering and laser ablation and their microstructural and magnetic properties were investigated. The base material was nanosized MgFe2O4 powder produced by citrate auto-combustion synthesis. The auto-combusted powders were annealed at temperatures in the range 600 - 1000°C in air to study the effect of temperature on thofe formation MgFe2O4. The saturation magnetization Ms was 24.30 emu/g at room temperature. © Published under licence by IOP Publishing Ltd. [less ▲]

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See detailWhat is the Contribution of Host-Derived CMV Immunity after Allogeneic Transplantation following Non-Myeloablative Conditioning?
MENTEN, Catherine ULg; Castermans, E.; Hannon, Muriel ULg et al

in Haematologica (2012), 97(Supplement 1), 720

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See detailDoes delay release the verbal overshadowing effect in child and adult eyewitnesses?
Vanootighem, Valentine ULg; Brédart, Serge ULg; Dehon, Hedwige ULg

in Perception (2012), 41(supplement), 194

The verbal overshadowing effect (VO) (eg, Schooler and Engstler-Schooler, 1990 Cognitive Psychology 22(1) 36–71) suggests that the fact of generating a verbal description of a previously seen face may ... [more ▼]

The verbal overshadowing effect (VO) (eg, Schooler and Engstler-Schooler, 1990 Cognitive Psychology 22(1) 36–71) suggests that the fact of generating a verbal description of a previously seen face may impair subsequent performance on a lineup identification task in adults. Previous research has examined whether descriptions also impaired children’s identification abilities but no evidence of VO was found (Memon and Rose, 2002 Psychology, Crime and Law 8(3), 229–242). However, the method might not have been appropriate to observe this effect as, for instance, a 24-hour delay between the description and the identification tasks (associated with a release of the VO effect in adults) was used. Hence, in this current experiment, groups of children (7–8, 10–11, 13–14 years old) and adults were presented with a short video and then assigned to a description or a no description condition before the identification task. Participants were also assigned either to a “no delay”, a “24-hour post encoding delay” or a “24-hour post description delay” condition to determine the influence of delay on the VO effect. Results indicated that, compared to the control condition, the description decreased correct identification performance in both children and adults and no release of VO was found with delay. [less ▲]

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See detailBayesian integration of external information into the single step approach for genomically enhanced prediction of breeding values
Vandenplas, Jérémie ULg; Misztal, Ignacy; Faux, Pierre ULg et al

in Journal of Dairy Science (2012), 95(Supplement 2),

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