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See detailDescription of cropland CO2 exchange : a comparison of empirical and physiologically based estimates of Reco, GPP and NEE
Tenhunen, J.; Li, Y.-L.; Dinh, N. Q. et al

in CarboEurope-IP meeting 2008 (2008)

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See detailDescription of diffractive optical elements with self-Fourier transform functions
Stijns, Erik; Roose, Stéphane ULg

in Nowak, J.; Zajac, M. (Eds.) Proceedigs of International colloqium on non-conventional optical imaging elements NOIE'93 (1993)

In (synthetic) holography and diffractive optics, the optical field is often decomposed in a set of spherical or plane waves. This gives sometimes some problems in calculating the Fourier transform ... [more ▼]

In (synthetic) holography and diffractive optics, the optical field is often decomposed in a set of spherical or plane waves. This gives sometimes some problems in calculating the Fourier transform. Because Gaussian beams are their own Fourier transform, it seems to be more natural to use Gaussian beams as basis functions. However, because Gaussian functions are no complete set of basis functions, it is necessary to extend the idea and to use rather Gaussian-Hermite wave functions as an orthonormal basis set. Those ideas can also be applied to general Self-Fourier Transform functions. [less ▲]

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See detailDescription of Fish Mobility and Habitat Use in a Large Regulated Fast Flowing River (the Rhône River, France) Using Fine Scale Acoustic Tracking
Bergé, Julien; Capra, Hervé; Pella, Hervé et al

Conference (2011, September)

Understanding fine scale behavioral responses of fish to changes in abiotic characteristics of streams (in term of flow and water temperature) is an interesting innovative issue to improve river ... [more ▼]

Understanding fine scale behavioral responses of fish to changes in abiotic characteristics of streams (in term of flow and water temperature) is an interesting innovative issue to improve river management of highly disturbed large rivers. Acoustic telemetry system have become an essential technology for such studies involving continuous (per second) and accurate tracking of fish movements. In the Rhône River (France), important hydrology and thermal contrasts are mainly explicated by the succession of dams and nuclear power plant from the Leman Lake (Switzerland). In this context, it is likely that fish are compelled to adapt their behaviour and their habitat selection in this changing environment. In order to test this hypothesis, a fixed acoustic telemetry survey was performed in the Rhône River during summer 2009 in front of the Bugey nuclear power plant which released warmed water within the river. A study site of 1.8 km long and 140 m wide was monitored using 32 hydrophones developed by HTI® (Hydroacoustic Technology Inc.). Sixty two fish mainly belonging to three species barbel (Barbus barbus), chub (Leuciscus cephalus) and wels catfish (Silurus glanis) were marked with acoustic tags (307 KHz; pulse rate ~ 3 sec.) and followed continuously during 89 days. Fish positions were coupled with a 2D hydraulic model to obtain main physical characteristics encountered by fish such as flow velocity, water depth, water temperature and substrate. The accuracy of the telemetry system was checked and a positional error less than 4 m was found in the channel (detection efficiency of 50 %) and less than 8 meters along the banks (detection efficiency of 20 %). Behavioral responses of fish were investigated through the individual mobility and activity during selected phases of flow (increase, decrease and stability) and water temperature changes (imposed by both warm water plumes and the rapid transition of deep cold waters from the Leman Lake discharged within the river). Mobility and activity of fish were particularly studied to determine the amount of movement associated with a change of abiotic conditions. The separate effects of each environmental factors on behavioral responses of fish were studied and interactions between factors were analyzed to highlight potential synergistic or antagonistic effects. Finally, movement rules (i.e. individual movement decisions in a particular surrounding environment) were analyzed to determine the role of perception of the environment by fish (i.e. how the fish feel the changes in physical habitat) in the use of space. [less ▲]

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See detailDescription of hydrogeological conditions in the Geer sub-catchment and synthesis of available data for groundwater modelling
Orban, Philippe ULg; Batlle-Aguilar, Jordi; Goderniaux, Pascal ULg et al

Report (2006)

In the framework of Workpackage R3 Meuse, the Hydrogeology Group of the University of Liège (HGULg) will develop a groundwater flow and transport model for the Geer sub-catchment (tributary of the Meuse ... [more ▼]

In the framework of Workpackage R3 Meuse, the Hydrogeology Group of the University of Liège (HGULg) will develop a groundwater flow and transport model for the Geer sub-catchment (tributary of the Meuse). This model will be used for collaborations HYDRO H1 and TREND T2. The deliverable describes the hydrogeological conditions prevailing in the sub-catchment and provides a synthesis of available data for groundwater and transport modelling. [less ▲]

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See detailDescription of In116, the first blaCTX-M-2-containing complex class 1 integron found in Morganella morganii isolates from Buenos Aires, Argentina
Power, pablo; Galleni, Moreno ULg; Di Conza, José et al

in Journal of Antimicrobial Chemotherapy (2005), 55(4), 461-465

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See detailDescription of intra-diffusion in liquid mixtures
Merzliak, T; Bartusseck, I; Stapf, S et al

in Fluid Phase Equilibria (2006), 245(2), 158-167

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See detailA description of n-ary semigroups polynomial-derived from integral domains
Marichal, Jean-Luc; Mathonet, Pierre ULg

in Semigroup Forum (2011)

We provide a complete classification of the n-ary semigroup structures defined by polynomial functions over infinite commutative integral domains with identity, thus generalizing Glazek and Gleichgewicht ... [more ▼]

We provide a complete classification of the n-ary semigroup structures defined by polynomial functions over infinite commutative integral domains with identity, thus generalizing Glazek and Gleichgewicht's classification of ternary semigroups. [less ▲]

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See detailDescription of original endoscopic findings and respiratory functional assessment using barometric whole-body plethysmography in dogs suffering from brachycephalic airway obstruction syndrome.
Bernaerts, Frederique ULg; Talavera, Jesus; Leemans, Jérôme ULg et al

in Veterinary Journal (2010), 183(1), 95-102

The clinical features of brachycephalic airway obstructive disease in 11 brachycephalic dogs are described in this study. The respiratory strategy was assessed before (n=11) and after (n=6) surgery using ... [more ▼]

The clinical features of brachycephalic airway obstructive disease in 11 brachycephalic dogs are described in this study. The respiratory strategy was assessed before (n=11) and after (n=6) surgery using barometric whole-body plethysmography (BWBP), with the relationship between BWBP variables and the severity of the clinical signs assessed by the use of a respiratory score based on clinical, radiographic and endoscopic findings. Partial collapse of the left main bronchus was a common finding not previously described as part of the brachycephalic airway obstructive disease syndrome. Epiglottic cysts, laryngeal granulomas and nasopharyngeal turbinates in English Bulldogs were other previously unreported findings. No significant correlation between the respiratory score and any of the BWBP variables was detected. Compared to healthy dogs, brachycephalic dogs had a significantly lower Te/Ti ratio (expiratory time over inspiratory time), peak inspiratory flow (PIF) per kg bodyweight (BW), significantly higher peak expiratory flow (PEF) per kgBW, PEF/PIF, and enhanced pause. These variations are compatible with upper airway obstructions primarily in the extrathoracic airways. Following surgery, a significant decrease in PEF/PIF was detected. The study showed that BWBP could be used to characterise the respiratory strategy in brachycephalic dogs before and after surgery. [less ▲]

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See detailDescription of patients consulting the voice clinic regarding gender, age, occupational status and diagnosis
Remacle, Angélique ULg; Petitfils, Cloé; FINCK, Camille ULg et al

in European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) (in press)

Purpose. To describe the gender, age, occupational status and diagnosis of dysphonic patients. Method. We retrospectively analyzed the medical records of 1079 patients examined at the Voice clinic of the ... [more ▼]

Purpose. To describe the gender, age, occupational status and diagnosis of dysphonic patients. Method. We retrospectively analyzed the medical records of 1079 patients examined at the Voice clinic of the University hospital of Liège in French-speaking Belgium. Results. Overall, seven out of 10 patients who attended the voice clinic for dysphonia were females. The patients’ ages ranged from 4 to 93 (mean=43.5). Females predominantly consulted at the age of 54 and males at the age of 9. Regarding the occupational status, workers represented more than half of our patients (53%), while 11.2% were unemployed, 15.4% were students, and 19.9% were retired. Regarding the diagnoses of the 1079 patients, nodules were the most common pathologies (n=182, 16.9% of the patients), prevailing in females (n=142, 18.8% of the females), encountered in 16.8% of the workers and 42.8% of the students consulting the voice clinic. Following nodules, laryngeal mobility disorders were diagnosed in 16.4% of the patients (n=177), mainly females (n=115), and was the most frequent diagnosis in retirees (n=75, 34.9%). Conclusions. The majority of the patients consulting the voice clinic for dysphonia were adult females, in their workforce, diagnosed with vocal nodules. The identification of the patients’ characteristics and diagnoses is important to develop treatments and prevention of dysphonia, estimate their costs, and allow comparisons across referral centers. [less ▲]

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See detailDescription of Phaseolus vulgaris L. aborting embryos from ethyl methanesulfonate (EMS) mutagenized plants
Silué, Souleymane; Diarrasouba, Nafan; Fofana, Inza Jesus et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(4), 563-571

The aim of this study was to describe the embryos abortion process and the inheritance of the embryos abortion trait in Phaseolus vulgaris plants deficient in seed development. These plants were isolated ... [more ▼]

The aim of this study was to describe the embryos abortion process and the inheritance of the embryos abortion trait in Phaseolus vulgaris plants deficient in seed development. These plants were isolated within the second generation of an ethyl methanesulfonate (EMS) TILLING population of P. vulgaris cv. 'BAT93'. Mutant embryos show abnormalities mainly in suspensors, shoot apical meristem (SAM) and cotylédons from the globular to the cotyledon stages and abort before maturity compared to those observed in wild-types samples. Mutant embryos show also hyperhydricity and contain low amount of chlorophyll. Genetic analyses of F1, F2 and F3 populations from the crosses carried out between the mutagenized plants with aborting embryos and the wild-type plants indicated that the embryo abortion phenotype is maternally inherited and controlled by a single recessive gene. These Phaseolus mutant plants with aborting embryos constitute a valuable material for plant embryogenesis studies. [less ▲]

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See detailDescription of Saturn’s auroral morphology during Cassini’s approach of the magnetosphere
Grodent, Denis ULg; Gérard, Jean-Claude ULg; Cowley, S. W. et al

Conference (2005, April 24)

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See detailDescription of the behaviour of strongly non-ideal mixtures with GEQUAC
Pielen, G; Pfennig, Andreas ULg

Conference (2003)

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See detailDescription of the bone-remodeling pattern after socket preservation procedures in human: a methodological study
LAMBERT, France ULg; VINCENT, Kim ULg; VANHOUTTE, Vanessa ULg et al

Poster (2011)

Background: The bone remodeling after tooth extraction can result in the loss of as much as 50% of the buccal wall and a global crestal reduction in width of 3.87mm according to a recent systematic review ... [more ▼]

Background: The bone remodeling after tooth extraction can result in the loss of as much as 50% of the buccal wall and a global crestal reduction in width of 3.87mm according to a recent systematic review. Multiple surgical protocols using biomaterials are proposed in order to limit the typical postextraction bone resorption. However, because of the heterogeneity of the studies and, more specifically, of the assessment methods, it is difficult to assert the superiority of one technique over another. Aim: The objective of this study was to develop a new radiographic method to assess alveolar bone remodeling after socket preservation procedures. Methods: Sixteen extraction sites (in 14 patients) localized in the upper anterior maxilla were treated with bovine hydroxyapatite (0.25–1mm particles) and a saddled connective tissue graft. A radiographic 3-dimensional assessment of the hard tissues was performed at baseline and at 3 months after the procedure. Standardized horizontal measurements were taken at three corono apical levels ( 2, 5, and 9mm) and at three mesio-diatal level (Mesial, Center, and Distal) in the buccal and palatal aspects. Vertical measurements were also recorded in nine regions over the top of the alveolar crest. Results: Extraction socket-preservation technique assessed in the present study significantly reduced horizontal bone remodeling. The horizontal dimension of the crest decreased by 1.6mm (20%) in the cervical regions ( 2mm level), experienced a moderate decrease of 1mm (12%) at the 5mm level, and experienced a very low decrease of 0.5mm(6%) in the apical ( 8mm) level. The losses were always significantly higher in the buccal than in the palatal aspect. Buccally, the maximal bone remodeling at the cervical level remained below 1mm. Vertical bone resorption was homogeneous and was < 1mm in the nine measured regions. Conclusions and clinical implications: The radiographic measuring methodology proved to be accurate and reproducible. It can be applied in other clinical settings. Moreover, the surgical procedure evaluated in the present study, significantly limits the postextraction buccal bone remodeling compared with the data found in the literature for untreated extraction socket in the aesthetic area. However, a complete inhibition of the bone remodeling was not reached and the authors suggest a surgical technique using a ‘‘saddled’’ connective tissue graft to thicken buccal soft tissue biotype and consequently compensate for cervical bone loss. [less ▲]

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See detailDescription of the Earth system model of intermediate complexity LOVECLIM version 1.2
Goosse, H.; Brovkin, V.; Fichefet, T. et al

in Geoscientific Model Development (2010), 3(2), 603-633

The main characteristics of the new version 1.2 of the three-dimensional Earth system model of intermediate complexity LOVECLIM are briefly described. LOVECLIM 1.2 includes representations of the ... [more ▼]

The main characteristics of the new version 1.2 of the three-dimensional Earth system model of intermediate complexity LOVECLIM are briefly described. LOVECLIM 1.2 includes representations of the atmosphere, the ocean and sea ice, the land surface (including vegetation), the ice sheets, the icebergs and the carbon cycle. The atmospheric component is ECBilt2, a T21, 3-level quasi-geostrophic model. The ocean component is CLIO3, which consists of an ocean general circulation model coupled to a comprehensive thermodynamic-dynamic sea-ice model. Its horizontal resolution is of 3° by 3°, and there are 20 levels in the ocean. ECBilt-CLIO is coupled to VECODE, a vegetation model that simulates the dynamics of two main terrestrial plant functional types, trees and grasses, as well as desert. VECODE also simulates the evolution of the carbon cycle over land while the ocean carbon cycle is represented by LOCH, a comprehensive model that takes into account both the solubility and biological pumps. The ice sheet component AGISM is made up of a three-dimensional thermomechanical model of the ice sheet flow, a visco-elastic bedrock model and a model of the mass balance at the ice-atmosphere and ice-ocean interfaces. For both the Greenland and Antarctic ice sheets, calculations are made on a 10 km by 10 km resolution grid with 31 sigma levels. LOVECLIM1.2 reproduces well the major characteristics of the observed climate both for present-day conditions and for key past periods such as the last millennium, the mid-Holocene and the Last Glacial Maximum. However, despite some improvements compared to earlier versions, some biases are still present in the model. The most serious ones are mainly located at low latitudes with an overestimation of the temperature there, a too symmetric distribution of precipitation between the two hemispheres, and an overestimation of precipitation and vegetation cover in the subtropics. In addition, the atmospheric circulation is too weak. The model also tends to underestimate the surface temperature changes (mainly at low latitudes) and to overestimate the ocean heat uptake observed over the last decades. [less ▲]

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See detailDescription of the research project CIMEDE for the industrial construction of evolutionary, sustainable and economic houses
Duthoit, Fabienne ULg; Embrechts, Jean-Jacques ULg

in Proceedings of the Euronoise 2015 Congress (2015, June)

CIMEDE is a research project supported by the Region of Wallonia (Belgium). It stands for CIMEDE “Construction Industrielle de Maisons Evolutives, Durables et Economiques – industrial construction of ... [more ▼]

CIMEDE is a research project supported by the Region of Wallonia (Belgium). It stands for CIMEDE “Construction Industrielle de Maisons Evolutives, Durables et Economiques – industrial construction of evolutionary, sustainable and economic houses”. Since the materials envisaged for this project are timber and gypsum fibre board, it was necessary to design a constructive principle of lightweight timber frame constructions which meets the industrial, sustainable, evolutionary and economic requirements and also the requirements of the Belgian acoustic standard NBN S01-400-1. First of all, an inventory of constructive elements that are currently used in this type of construction (floors, walls and facades) is presented with their acoustic performances. Then, the laboratory measurements of some samples of floors, facades, interior walls and partition walls are described and discussed. On the basis of the measurement results, several solutions that best meet all criteria were retained and a mock-up was built with these constructive elements. Measurement results on this mock-up are also presented. The final solution for the floor, the partition wall, the interior wall and the facade which meets the acoustic requirements is finally described [less ▲]

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See detailDescription of the STEELQUAKE benchmark
Molina, F. J.; Pascual, R.; Golinval, Jean-Claude ULg

in Mechanical Systems & Signal Processing (2003), 17(1), 77-82

A large-size two-storey steel structure with reinforced-concrete slabs was used for a damage detection benchmark. The modal tests at the original and damaged states were performed by impact-hammer ... [more ▼]

A large-size two-storey steel structure with reinforced-concrete slabs was used for a damage detection benchmark. The modal tests at the original and damaged states were performed by impact-hammer excitation. The damage consisted of major cracks at some of the beam-to-column joints and was introduced by seismic testing up to large deformations by means of hydraulic jacks. (C) 2003 Elsevier Science Ltd. All rights reserved. [less ▲]

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See detailDescription of two Enterococcus strains isolated from traditional Peruvian artisanal-produced cheeses with a bacteriocin-like inhibitory activity
Aguilar Galvez, Ana Consuelo ULg; Dubois Dauphin, Robin ULg; Ghalfi, Hakim et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2009), 13(3), 349-356

The aim of this work was to isolate and to characterize strains of lactic acid bacteria (LAB) with bacteriocin-like inhibitory activity from 27 traditional cheeses artisanal-produced obtained from ... [more ▼]

The aim of this work was to isolate and to characterize strains of lactic acid bacteria (LAB) with bacteriocin-like inhibitory activity from 27 traditional cheeses artisanal-produced obtained from different Peruvian regions. Twenty Gram+ and catalasenegative strains among 2,277 isolates exhibited bacteriocin-like inhibitory activity against Listeria monocytogenes CWBIB2232 as target strain. No change in inhibitory activity was observed after organic acid neutralization and treatment with catalase of the cell-free supernatant (CFS). The proteinic nature of the antimicrobial activity was confirmed for the twenty LAB strains by proteolytic digestion of the CFS. Two strains, CWBI-B1431 and CWBI-B1430, with the best antimicrobial activity were selected for further researches. These strains were taxonomically identified by phenotypic and genotypic analyses as Enterococcus mundtii (CWBI-B1431) and Enterococcus faecium (CWBI-B1430). The two strains were sensitive to vancomycin (MIC < 2 μg.ml-1) and showed absence of haemolysis. [less ▲]

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See detailLa description phénoménologique
Dewalque, Arnaud ULg

Conference given outside the academic context (2008)

L'objectif de la conférence, destinée à un large public, est de présenter la notion de description qui constitue le coeur de la méthode phénoménologique fondée par Edmund Husserl (1859-1938). J'y discute ... [more ▼]

L'objectif de la conférence, destinée à un large public, est de présenter la notion de description qui constitue le coeur de la méthode phénoménologique fondée par Edmund Husserl (1859-1938). J'y discute les deux questions suivantes: (1) qu'appelle-t-on la description phénoménologique? Et (2) à quoi sert-elle? [less ▲]

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