How can phenology contribute to ecological restoration?
; ; Le Stradic, Soizig et al
Conference (2015, August)Detailed reference viewed: 34 (0 ULg)
How can QbD be used and implemented to optimize method development and validation?
Lebrun, Pierre ; Boulanger, Bruno ; Hubert, Philippe
Conference (2010, November 04)
Through an example, the way to apply Design of Experiments and the Bayesian modeling to develop robust optimal ligand-binding assays (LBA) will be presented. The objectives of a LBA will be re-examined ... [more ▼]
Through an example, the way to apply Design of Experiments and the Bayesian modeling to develop robust optimal ligand-binding assays (LBA) will be presented. The objectives of a LBA will be re-examined and response of interest derived (precision profile). The concept of Design Space specific for LBA will be introduced in relation with validation, routine and transfer [less ▲]Detailed reference viewed: 84 (12 ULg)
How can we determine the role of radiotherapy in the treatment of localized aggressive non Hodgkin's lymphoma?
Bonnet, Christophe ; Fillet, Georges
in Journal of Clinical Oncology (2007), 25/n°19Detailed reference viewed: 24 (5 ULg)
How can we help implementing ESCEO algorithm in real life?
in Osteoporosis International (2015), 26(S1), 382Detailed reference viewed: 20 (7 ULg)
How can we predict difficulty in PISA reading items ? The process of describing item difficulty
; ; et al
Conference (2009, September)Detailed reference viewed: 28 (2 ULg)
How can we predict difficulty in PISA reading items ? The process of describing item difficulty
; ; et al
Conference (2009, November)Detailed reference viewed: 9 (0 ULg)
How Can ‘Images Drive out Images’ ? New Perspectives on the Use and Function of Devotional Imagery by Heinrich Seuse
Scientific conference (2012, January 21)Detailed reference viewed: 17 (0 ULg)
How CAPE tools can contribute to process sustainability
Kalitventzeff, Boris ; Heyen, Georges ; et al
in Journal of Cleaner Production (2004), 12(2), 117-124
The concern of the EFCE for sustainability. Four recent case studies to illustrate how CAPE tools contribute to process sustainability: (1) ultimate plant operation at Wacker-Chemie (DE), (2) development ... [more ▼]
The concern of the EFCE for sustainability. Four recent case studies to illustrate how CAPE tools contribute to process sustainability: (1) ultimate plant operation at Wacker-Chemie (DE), (2) development of a new sulphuric acid plant with Air Liquide (FR), (3) plant retrofit for CO2 abatement at Kemira (BE), (4) insertion of a new plant in an existing Solvay industrial site (Asia). (C) 2003 Published by Elsevier Ltd. [less ▲]Detailed reference viewed: 161 (11 ULg)
How Climate Change Could Affect The Hydrology In Walloon Region ?
Bauwens, Alexandra ; Sohier, Catherine ; Degre, Aurore
Poster (2010, April 22)
Research on climate change and its impacts on hydrology are increasingly important nowadays. AMICE project focuses on the adaptation of the Meuse to the impacts of climate change. On this study, we focus ... [more ▼]
Research on climate change and its impacts on hydrology are increasingly important nowadays. AMICE project focuses on the adaptation of the Meuse to the impacts of climate change. On this study, we focus on the Walloon tributaries of the Meuse river, and more specifically on the Vesdre and the Lesse sub-catchments. Climate change scenarios are outputs of the CCI-HYDR Perturbation Tool for time slice 2020-2050 and 2070-2100. This tool allows us to build climate change time series and to use it as input of our hydrological models. The most pessimistic and the most optimistic scenarios are selected. The hydrological model used is called EPICGrid and it is a physically based distributed model at catchment scale. EPICGrid used the perturbed meteorological data to provide hydrograms for the different scenarios and time slice for the Vesdre and the Lesse sub-catchments. It appears that for the Vesdre daily discharge with a return period of 100 years (Qd100) could varies between -3% and +27% when the mean annual 7-day Minimum flow with a return period of 50 years (MAM750) varies between -37% and +16% for 2070-2100. For the Lesse, Qd100 varies between -30% and +50% when MAM750 varies between -21% and +28% for 2070-2100. The broad range of discharge variations reflects the broad range of meteorological variation. These results will be used further in the AMICE project to build an adaptation strategy. [less ▲]Detailed reference viewed: 64 (16 ULg)
How climate extremes are affecting the movement of populations in the Asia Pacific region
Gemenne, François ; Blocher, Julia ; De Longueville, Florence et al
in Price, Susanna; Singer, Jane (Eds.) Global Implications of Development, Disasters and Climate Change: Responses to Displacement from Asia Pacific (2016)Detailed reference viewed: 105 (18 ULg)
How clinical nutrition helps pets suffering from acute and chronic diseases- practical examples and prospects
Diez, Marianne ;
in TSAVA (Ed.) 17th FECAVA Eurocongress 6th TSAVA Congress Modern Veterinary Practices Congress Book (2011, September)Detailed reference viewed: 28 (6 ULg)
How closely are Pericopsis elata (Fabaceae) patches linked to past human disturbances in South-Eastern Cameroon
Bourland, Nils ; ; Daïnou, Kasso et al
Conference (2013, June 26)
Studies conducted in the Congo Basin forests concluded that soil parameters and large disturbances induced by human activities since 3000–2000 BP could be the main driver for the persistence of long lived ... [more ▼]
Studies conducted in the Congo Basin forests concluded that soil parameters and large disturbances induced by human activities since 3000–2000 BP could be the main driver for the persistence of long lived light-demanding tall tree species. Today most of the timber species belong to this group, among them Pericopsis elata (Fabaceae). Like many other light-demanding trees, this species suffers from important regeneration problems. While the conditions for its establishment must have been met in the past, they obviously have become unfavourable. Because of ongoing logging activities and a natural decline of its populations, this species is recorded in both the IUCN Red List and the CITES Appendix II listings. Our goal was to investigate the roles of both pedological and anthropogenic factors in the persistence of forest patches characterized by this clustered species. Soil surveys, botanical inventories and anthracological excavations were conducted in three different forest sites located in south-eastern Cameroon. P. elata patches (3.3-14.7 ha) were studied and compared to their close surroundings. No statistical differences were observed between the results of botanical inventories conducted inside and outside the patches (Morisita-Horn indices from 0.69-0.77). Soils only differed in Fe content, but otherwise no significant differences could be observed. Charcoal is widespread and abundant in study sites, mostly inside the patches. Charcoal radiocarbon dating (2,150-195 BP) was consistent with decoration techniques of archaeological materials that we discovered. The average age of P. elata individuals coincides with fire events that occurred in a region where fires rarely occur naturally. We present evidence of past anthropogenic disturbances (human settlement, slash-and-burn cultivation) in the Congolese mixed moist semi-evergreen forest in south-eastern Cameroon. We discuss the potential influence of our findings on the management of light-demanding tall trees populations in a context of logging activities. [less ▲]Detailed reference viewed: 108 (25 ULg)
How compatible is perfect competition with transmission loss allocation methods?
; ; et al
in Proceedings of the 5th International Conference on the European Electricity Market (EEM-08) (2008)
This paper addresses the problem of transmission loss allocation in a power system where the generators, the demands and the system operator are independent. We suppose that the transmission losses are ... [more ▼]
This paper addresses the problem of transmission loss allocation in a power system where the generators, the demands and the system operator are independent. We suppose that the transmission losses are exclusively charged to the generators, which are willing to adopt a perfectly competitive behavior. In this context, their offers must reflect their production costs and their transmission loss costs, the latter being unknown beforehand and having to be predicted. We assume in this paper that the generators predict their loss costs from the past observations by using a weighted average of their past allocated costs. Under those assumptions, we simulate the market dynamics for different types of transmission loss allocation methods. The results show that the transmission loss allocation scheme can lead to a poorly efficient market in terms of social welfare. [less ▲]Detailed reference viewed: 91 (6 ULg)
How complex can be the Unimolecular Decomposition of a simple Molecule? The case of Acetylene. An Electron Impact and PIPECO Investigation.
Locht, Robert ; Servais, Christian
in Zeitschrift für Physikalische Chemie (1996), 195
The dissociative ionization of C2H2, C2D2 and C2HD is presented in this work. Excepting the H2+ formation, all dissociation channels are thoroughly investigated by electron impact. The translational ... [more ▼]
The dissociative ionization of C2H2, C2D2 and C2HD is presented in this work. Excepting the H2+ formation, all dissociation channels are thoroughly investigated by electron impact. The translational energy distribution as a function of the impinging electron energy and the appearance energy as a function of the translational energy are measured for all fragment ions. KE versus AE diagrams are obtained and the isotope effect is examined. All observed thresholds are analyzed in detail and dissociation mechanisms are proposed. For the C2H+ ion the PIPECO technique has also been used. From these discussions the H-C2H, HC-CH and H-C2 binding energy values are proposed, i.e. 5.33+/-0.23 eV, 9.83+/0.10 eV and 5.44+/-0.40 eV respectively. The fragmentation path leading to C+, CH2+ and C2+ are discussed in terms of dissociation mechanisms involving the transient vinylidene structure of the molecular ion as an intermediate. [less ▲]Detailed reference viewed: 73 (5 ULg)
How conditioning by one’s job leads to visual misrepresentation: Evidence from Rorschach test in nurse population
Englebert, Jérôme ; Blavier, Adelaïde
Poster (2011, May 27)
Exner (1974, 2003, 2005) has developed an empirical method for analyzing answers at Rorschach test. This analysis is not focused on the answer content but more on perception, information processing and ... [more ▼]
Exner (1974, 2003, 2005) has developed an empirical method for analyzing answers at Rorschach test. This analysis is not focused on the answer content but more on perception, information processing and quality of the answer. Thus, contrary to psychoanalysis, the content and its interpretation are not systematically studied in this empirical approach. In this perspective, our purpose was to empirically study how answers and performance at Rorschach test were conditioning by one’s job. We administrated Rorschach test to 38 nurses and 38 paired subjects (matched for gender and age). Our data showed nurses gave significantly more anatomical answers than control subjects, this first result confirmed a clinical assumption that was never objectified by previous studies: conditioning by one’s job influences the answer content at the Rorschach test (e.g., people from medical sector tend to see organs). The second main result is the formal qualities of anatomical answers given by nurses were significantly worse and more unusual than anatomical answers given by the control group. These findings suggest that conditioning by one’s job is so strong that it overrides the other choices of answers and can lead to a deformation of the visual perception. Furthermore, the content is the main answer element subjects can control in this test and thus, it could be a means of affirming his/her identity (e.g., nurse’s identity by anatomical content). Moreover, in regard to the bad formal quality of anatomical answers, it seems that nurse’s identity takes precedence over the reality and the actual form perception. [less ▲]Detailed reference viewed: 47 (11 ULg)
How convection and diffusion processes might affect biological imprints, a challenge for modelers
; Zhou, Jiayun ; et al
Conference (2012, April)Detailed reference viewed: 8 (2 ULg)
How could Mosan agriculture be impacted by climate change and future droughts?
Bauwens, Alexandra ; Sohier, Catherine ; Deraedt, Deborah 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 ▲]Detailed reference viewed: 50 (18 ULg)
How could the Io footprint disappear?
; Bonfond, Bertrand ;
in Planetary and Space Science (2013), 89
The interaction of Io with the Jovian magnetosphere is the best known – and the most intense – case of satellite-magnetosphere interaction. The interaction involves a power of more than a TeraWatt, a few ... [more ▼]
The interaction of Io with the Jovian magnetosphere is the best known – and the most intense – case of satellite-magnetosphere interaction. The interaction involves a power of more than a TeraWatt, a few percent of which are transferred to electrons. These electrons precipitate in the Jovian ionosphere where they light-up bright auroral emissions (several 100's kR to a few 1000's kR). The brightness of the Io-controlled UV auroras is known to vary, due to the Jovian magnetic field tilt, which induces longitudinal variations, and due to the Io torus ever changing parameters (possibly due to Io's volcanic activity), which induce a temporal variation. As Io-controlled UV auroras have been monitored for a long time, the variation of their brightness is well-documented, and the typical amplitude of these variations has been established. However, on June, 7th 2012 an unusual event occurred in the plasma torus surrounding Io, which triggered its own UV emissions on Jupiter in a region mapping to Io's orbit. When Io reached that region, Io's auroral footprint disappeared, its brightness dimming by at least a factor of three to be below the background aurora brightness. Both the auroral event at such a low latitude and the Io footprint disappearance are events that have never been observed before and should be quite rare. However, the question of how the bright Io footprint becomes that weak remains. From a theoretical point-of-view, the Io-Jupiter interaction has been widely studied. In the 80's, it was shown that Alfvén waves are radiated from Io, carrying currents to Jupiter. In the late-2000's, studies showed that dispersive Alfvén waves were likely to cause the acceleration of the electrons powering the auroral emissions, although Io-scale Alfvén waves should be non-dispersive. More recently, a model was built which permits one to compute the ratio between dispersive and non-dispersive waves in the auroral region for satellite-magnetosphere interactions, and thus the brightness of the related aurorae. We use this model to investigate which variation of the interaction parameters could lead to the Io footprint disappearance. [less ▲]Detailed reference viewed: 40 (3 ULg)
How Cristiano Ronaldo performs his knuckleball?
; Darbois-Texier, Baptiste ; et al
Conference (2012, November 19)
A soccer ball kicked at very low spin can exhibit a zigzag trajectory. Along its straight path, the ball deviates laterally from about 0.2 m, that is to say one ball diameter. One zig zag happens as the ... [more ▼]
A soccer ball kicked at very low spin can exhibit a zigzag trajectory. Along its straight path, the ball deviates laterally from about 0.2 m, that is to say one ball diameter. One zig zag happens as the ball travelled about 15 m. As the deviation direction seems unpredictable, this effect is highly annoying for goalkeepers. That why Cristiano Ronaldo and many soccer players are looking for this phenomenon. Those trajectories called knuckleballs are also observed on volleyball and baseball. We study experimentally indoor knuckleballs for different balls varying from soccer balls to smooth spheres. We show that knuckle effect doesn't derive from ball deformations at foot impact or ball seams. Actually, aerodynamic lift forces on a smooth sphere are fluctuating and are responsible for knuckleballs. From this study, we deduce side force intensity exerted on smooth spheres and sport balls for typical game Reynolds number (Re∼10^4−10^6). Finally we discuss required conditions to observe a knuckleball on the sport field. [less ▲]Detailed reference viewed: 104 (1 ULg)