Comparaison empirique des méthodes classiques de détection du fonctionnement différentiel d’items en psychométrie
Magis, David ; ;
in Raîche, Gilles; Paquette-Côté, Karine; Magis, David (Eds.) Des mécanismes pour assurer la validité de l’interprétation de la mesure en éducation. Tome 1 : la mesure. (2011)Detailed reference viewed: 21 (12 ULg)
Actors' benefit analysis on value chain of fresh dairy milk in Vietnam
; Bui, Thi Nga
in Journal of Economics & Development (2011), (169(II)), 32-38
Vietnam locates in the Asia-the most active region, where gains the highest economic growth rate and highest milk consumption in the world. Vietnam also ranks the second among the highest milk ... [more ▼]
Vietnam locates in the Asia-the most active region, where gains the highest economic growth rate and highest milk consumption in the world. Vietnam also ranks the second among the highest milk productivity in the Asia and milk consumption is increasing rapidly. However, the dairy industry in Vietnam is currently able to meet only 22% of domestic demand; the remaining amount has been imported (VOV/VNA, 2008). In addition, raw milk price is very low while retail price is too high. It leads to low effective in the production of the whole chain. This paper is based on the value chain approach within both quantitative and qualitative methods to evaluate a typical fresh value chain in the North of Vietnam in (Moc Chau platation) in 2008 - 2010. The findings show that the dairy plant is the most powerful actor in the chain and it drives the whole chain while power of dairymen is very weak. The value added of the chain is distributed unequally among its actors in whom more benefitable for non-dairy cow producers. In particular, the value added in dairy cow stage would be much lower. [less ▲]Detailed reference viewed: 87 (6 ULg)
Sedimentary and Diagenetic processes related to Mid-Paleocene exposure surface, effects on the carbonate reservoirs properties: southeastern Pyrenean carbonate platform, Spain.
; ; Da Silva, Anne-Christine et al
in IAS meeting Abstract book (2011)Detailed reference viewed: 15 (0 ULg)
Etude de l'activité antifongique des bactéries lactiques isolées de produits alimentaires fermentés et caractérisation de leurs métabolites inhibiteurs
Doctoral thesis (2011)
Summary: The aim of this present research was to study the antifungal properties of lactic acid bacteria (LAB) isolated from fermented Mill flour and fermented cassava in order to use them for ... [more ▼]
Summary: The aim of this present research was to study the antifungal properties of lactic acid bacteria (LAB) isolated from fermented Mill flour and fermented cassava in order to use them for biopreservation. Antifungal activity of these LAB were assessed in MRS solid medium against food spoilage moulds as Aspergillus niger MUCL 28699, Aspergillus niger CWBIF194, Aspergillus tubingensis MP1 and Penicillium crustosum MY1. Three strains, Lactobacillus plantarum VE56, Weissella cibaria FMF4B16 and Weissella paramesenteroides LC11 were selected among 116 for their strongest inhibitory activity and their broad inhibitory spectrum against food moulds. The 4-fold concentrated supernatant of L. plantarum VE56 and W. paramesenteroides LC11 had the strongest inhibitory activity to compare to W. cibaria FMF4B16. The antifungal activity of the cell-free supernatant was pH dependent and insensitive to proteolytic enzymes action suggesting that the inhibitory activity was due to other compounds than proteins. The identification of antifungal compounds by chromatographic studies highlighted the production of phenyllactic acid by the three strains. In addition, 2-hydroxy-3-methylpentanoic acid and 2-hydroxy-4-methylpentanoic acid were produced by L. plantarum VE56 and W. paramesenteroides LC11. However, the concentration assessed in the supernatant was lower than the minimal inhibitory concentration showing a synergic action of all these produced compounds. The effect of the antifungal supernatant of L. plantarum VE56 and W. paramesenteroides LC11 on Aspergillus flavus NRRL 3357 resulted to an inhibition of conidial development and aflatoxin B1 production which was reflected in decreased gene expression of brlA (conidiophore specific transcription factor) and laeA (global regulator of secondary metabolism). These two bacteria also delayed Penicillium expansum MUCL 14498 conidial development in bread. [less ▲]Detailed reference viewed: 178 (15 ULg)
Caractérisation hydrogéologique et support à la mise en oeuvre de la Directive Européenne 2000/60 sur les masses d’eau souterraine en Région Wallonne - Delivrable 6.3 - Travaux de valorisation complémentaire des modèles d'écoulement et de transport de solutés développés pour les masses d'eau souterraine RWM011, RWM012 et RWM021
Brouyère, Serge ; Orban, Philippe ; et al
Report (2011)Detailed reference viewed: 15 (1 ULg)
La main de Gilliatt-Sumner ou le syndrome de défilé cervicothoracique neurogène vrai. A propos de sept cas opérés.
DUBUISSON, Annie ; NGUYEN KHAC, Minh-Tuan ; SCHOLTES, Félix et al
in Neuro-Chirurgie (2011), 57(1), 9-14
BACKGROUND AND PURPOSE: The clinical picture of hand atrophy related to a cervical rib or elongated C7 transverse process was well described in the modern literature by Gilliatt and Sumner; in 1970, they ... [more ▼]
BACKGROUND AND PURPOSE: The clinical picture of hand atrophy related to a cervical rib or elongated C7 transverse process was well described in the modern literature by Gilliatt and Sumner; in 1970, they reported a series of nine patients whose motor status was stabilized following brachial plexus decompression. We report here seven patients suffering from thoracic outlet syndrome (TOS), who developed hand atrophy, sometimes because of diagnostic delay. METHODS: The patient's charts were analysed retrospectively. RESULTS: The seven patients were all female; the mean age was 43 years. The first complaints were arm pain and paresthesias lasting six months to 5 years. Three patients were treated with C56/C67 discectomy plus disc prosthesis (one patient), ulnar neurolysis at the elbow (the same patient), carpal tunnel release (one patient), and intravenous immunoglobulins (one patient) before TOS diagnosis. Hand atrophy, severe in five patients, was present at presentation. All patients underwent brachial plexus decompression by the anterior (four), posterior (two), or transaxillary (one) approach. This last approach was completed 18 months later by brachial plexus neurolysis via the anterior approach. Postoperatively, motor deficit was improved in two patients and stabilized in five patients. CONCLUSIONS: Physicians' unfamiliarity with TOS diagnosis or their reluctance to accept the diagnosis without electrical confirmation can lead to hand atrophy. Brachial plexus decompression at this stage usually stabilizes the deficit. [less ▲]Detailed reference viewed: 10 (1 ULg)
On Glocal Subjectivities and Perspectives in Shaun Tan’s 'The Arrival'
Conference (2011)Detailed reference viewed: 20 (2 ULg)
Electrophysiological correlates of behavioural changes in vigilance in vegetative state and minimally conscious state.
; Bruno, Marie-Aurélie ; Noirhomme, Quentin et al
in Brain : A Journal of Neurology (2011), 134(Pt 8), 2222-32
The existence of normal sleep in patients in a vegetative state is still a matter of debate. Previous electrophysiological sleep studies in patients with disorders of consciousness did not differentiate ... [more ▼]
The existence of normal sleep in patients in a vegetative state is still a matter of debate. Previous electrophysiological sleep studies in patients with disorders of consciousness did not differentiate patients in a vegetative state from patients in a minimally conscious state. Using high-density electroencephalographic sleep recordings, 11 patients with disorders of consciousness (six in a minimally conscious state, five in a vegetative state) were studied to correlate the electrophysiological changes associated with sleep to behavioural changes in vigilance (sustained eye closure and muscle inactivity). All minimally conscious patients showed clear electroencephalographic changes associated with decreases in behavioural vigilance. In the five minimally conscious patients showing sustained behavioural sleep periods, we identified several electrophysiological characteristics typical of normal sleep. In particular, all minimally conscious patients showed an alternating non-rapid eye movement/rapid eye movement sleep pattern and a homoeostatic decline of electroencephalographic slow wave activity through the night. In contrast, for most patients in a vegetative state, while preserved behavioural sleep was observed, the electroencephalographic patterns remained virtually unchanged during periods with the eyes closed compared to periods of behavioural wakefulness (eyes open and muscle activity). No slow wave sleep or rapid eye movement sleep stages could be identified and no homoeostatic regulation of sleep-related slow wave activity was observed over the night-time period. In conclusion, we observed behavioural, but no electrophysiological, sleep wake patterns in patients in a vegetative state, while there were near-to-normal patterns of sleep in patients in a minimally conscious state. These results shed light on the relationship between sleep electrophysiology and the level of consciousness in severely brain-damaged patients. We suggest that the study of sleep and homoeostatic regulation of slow wave activity may provide a complementary tool for the assessment of brain function in minimally conscious state and vegetative state patients. [less ▲]Detailed reference viewed: 24 (1 ULg)
L'esthétique phénoménologique de Husserl : une approche contrastée
Book published by Kimé (2011)Detailed reference viewed: 53 (1 ULg)
Compte rendu de C. Calame, Prométhée généticien, Paris, 2010
Delli Pizzi, Aurian
in Kernos : Revue Internationale et Pluridisciplinaire de Religion Grecque (2011), 24Detailed reference viewed: 6 (0 ULg)
Deforestation in Central and West Africa: landscape dynamics, anthropogenic effects and ecological consequences.
; ; et al
in Daniels, J A (Ed.) Advances in Environmental Research - Volume 7 (2011)Detailed reference viewed: 64 (13 ULg)
BRYOPHYTES DU PARC NATIONAL DU MERCANTOUR : METHODES ET RESULTATS DE LA CAMPAGNE D'INVENTAIRES 2010 ATBI+M
; ; et al
in Biocosme Mesogeen (2011), 28(2), 23-50
During the All Taxa Biodiversity Inventory + Monitoring programme (ATBI+M) in the Mercantour and Alpi Marittime National Parks, our inventories of bryophytes identified 234 taxa (mosses and liverworts ... [more ▼]
During the All Taxa Biodiversity Inventory + Monitoring programme (ATBI+M) in the Mercantour and Alpi Marittime National Parks, our inventories of bryophytes identified 234 taxa (mosses and liverworts). This work completes the previous field campaigns, notably those of Jean-Pierre Hebrard (I MEP, Marseille) since 1965, and the ATBI bryophyte inventories in 2007. This number is based on four days of inventories in the central and peripheric territory of both National Parks, in four days in July and August 2010, together with previous data the 565 taxa known from the area still underestimate the number of species actually present. Our observations in 2010 added several new species for this area, including several rare and remarkable species such as Haplomitrium hookeri or species listed under the Habitats Directive as Buxbaumia viridis and Orthotrichum rogeri. Given the rarity of their habitats species from snow beds, large block boulders and high altitude wetlands are most remarkable. [less ▲]Detailed reference viewed: 15 (4 ULg)
Tropical forest carbon stocks estimates. Is tree aboveground biomass variability at the landscape scale really non-significant in a REDD+ context?
Bastin, Jean-François ; Bogaert, Jan ;
in Research Priorities in Tropical Silviculture: Towards New Paradigms? (2011)Detailed reference viewed: 35 (13 ULg)
Surgical resection of a sphenoid wing meningioma in a patient with Glanzmann thrombasthenia.
WERTZ, Damien ; Boveroux, Pierre ; PETERS, Pierre et al
in Acta anaesthesiologica Belgica (2011), 62(2), 83-6
Glanzmann thrombasthenia (GT) is a rare autosomal recessive disorder characterized by a deficiency or functional defect of platelet glycoprotein (GP) IIb/IIIa. Physiologically, this platelet receptor ... [more ▼]
Glanzmann thrombasthenia (GT) is a rare autosomal recessive disorder characterized by a deficiency or functional defect of platelet glycoprotein (GP) IIb/IIIa. Physiologically, this platelet receptor mediates aggregation of activated platelets by binding the adhesive proteins, fibrinogen, von Willebrand factor (VWF) and fibronectin. This facilitates attachment and aggregation of platelets at sites of vascular injury. We reported the management of a pterional meningioma resection in a patient with Glanzmann thrombasthenia, with recombinant factor VIIa (rFVIIa - NovoSeven) as haemostatic agent. A 48-year-old woman suffering from Glanzmann thrombasthenia was scheduled for spheno-orbital meningioma en plaque surgery. Because of repeated platelet transfusions, this patient developed isoantibodies against missing GPIIbIIIa and alloantibodies against Human Leukocyte Antigen (HLA) leading to refractoriness to platelet transfusions. We observed that Novoseven offered sufficient haemostasis conditions. Therefore, we noticed a deep vein thrombosis. This imposed us to use low weight molecular heparin despite recent surgery. [less ▲]Detailed reference viewed: 39 (10 ULg)
TGFbeta-receptor-dependent angiostimulation through the hyperglycosylated isoform of human chorionic gonadotropin.
; ; et al
in Placenta (2011), 32(9), 44Detailed reference viewed: 4 (0 ULg)
On the spectral bands measurements for combustion monitoring
; ; et al
in Combustion and Flame (2011), 158
In this work, spatial–spectral experimental issues affecting the detection of radical emissions in a natural gas flame are discussed and studied by a radiometric analysis of the flame spectral emission ... [more ▼]
In this work, spatial–spectral experimental issues affecting the detection of radical emissions in a natural gas flame are discussed and studied by a radiometric analysis of the flame spectral emission. As results of this analysis, Local and Global Spectral Radiation Measurements (LSRM and GSRM respectively) techniques are proposed, and guidelines for selecting the radical emission bands and spatial location of photodetectors are given. Two types of experiments have been performed in order to demonstrate the reliability of the GSRM technique for combustion characterization. In the first experiment, the LSRM and the GSRM have been implemented by using a home made sensor array, based on silicon photodiodes, for sensing the excited CH* and C2 radicals in a natural gas flame. It has been experimentally that by using the GSRM, the signal’s dispersion can be reduced to about 86% for the CH* and 76% for the C2 with respect to the obtained values with LSRM methodology. In the second experiment, the GSRM technique has been applied for sensing the CH* and C2 radicals, where it has been found that the signals emissions ratio C2/CH* provides a good indicator of the thermal combustion efficiency and the CO pollutants emissions, with small dispersion. Thus, the GSRM technique has corroborated the usefulness of that ratio for combustion monitoring. [less ▲]Detailed reference viewed: 34 (3 ULg)
Digressions politiques autour de la technique du passe-muraille
in Libert, Cédric (Ed.) Espèces d’architecte. Wallonie-Bruxelles (2011)Detailed reference viewed: 11 (0 ULg)