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See detailRobust Subspace Identification of a Nonlinear Satellite Using Model Reduction
Dossogne, Tilàn ULg; Noël, Jean-Philippe ULg; Kerschen, Gaëtan ULg

in Proceedings of the International Modal Analysis Conference (IMAC) XXXIV (2016, January)

The frequency-domain nonlinear subspace identification (FNSI) method has recently been successfully applied to large-scale nonlinear structures. One of the key features of FNSI is the nonlinear ... [more ▼]

The frequency-domain nonlinear subspace identification (FNSI) method has recently been successfully applied to large-scale nonlinear structures. One of the key features of FNSI is the nonlinear generalisation of the stabilisation diagram. However, as in linear system identification, the selection of the model order in the diagram is complicated by the presence of spurious poles, resulting from noise and modelling errors. Spurious poles have been shown to strongly perturb the estimation of the nonlinear coefficients. The present paper establishes a constructive procedure to discriminate between spurious and genuine poles. This procedure is derived in modal space and is based on a dominancy index and on model reduction techniques. It is demonstrated on a complete satellite structure possessing nonsmooth nonlinearities and high modal density. Spurious frequency variations in the nonlinear coefficients are proved to be effectively removed, significantly improving the quality of the overall identified model. [less ▲]

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See detailReduced span spray: Part 3: Design of a narrow span nozzle
De Cock, Nicolas ULg; Massinon, Mathieu ULg; Ouled Taleb Salah, Sofiene ULg et al

in Aspect of Applied Biology (2016, January)

Optimisation of the droplet spectra of the agricultural spray may increase the spray application efficiency. The optimal spray would contain only the most efficient droplets in term of speed and size ... [more ▼]

Optimisation of the droplet spectra of the agricultural spray may increase the spray application efficiency. The optimal spray would contain only the most efficient droplets in term of speed and size. Therefore, this paper is presenting the first steps of the design of a narrow span nozzle in order to produce an optimised spray. The starting geometry is a splash plate nozzle with a disk ending with structures (i.e. tooth, grooves, and needles) that would separate the liquid sheet into jets. These jets would be in the Rayleigh regime which has the advantage of producing narrower droplet spectra than liquid sheet break-up. The present project aims to design a hydraulic nozzle producing a spray with a narrow drop size distribution in order to increase the agricultural spray application efficiency. In the present paper the first project steps are presented. [less ▲]

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See detailObtaining nonlinear frequency responses from broadband testing
Gourc, Etienne ULg; Grappasonni, Chiara ULg; Noël, Jean-Philippe ULg et al

in Proceedings of the International Modal Analysis Conference (IMAC) XXXIV (2016, January)

The objective of the paper is to obtain the frequency response curves of nonlinear mechanical systems from broadband testing. The proposed approach consists in coupling an identification method with a ... [more ▼]

The objective of the paper is to obtain the frequency response curves of nonlinear mechanical systems from broadband testing. The proposed approach consists in coupling an identification method with a continuation method. Specifically, the frequency-domain nonlinear subspace identification (FNSI) method is first used to derive an experimental model of the structure in state space from broadband measurements. The harmonic balance method coupled with arclength continuation then utilizes this experimental model to compute the frequency response curves of the system. The method is demonstrated using a numerical example. [less ▲]

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See detailThe genetic causes of pituitary gigantism
Rostomyan, Liliya ULg; Lysy, P; Desfilles, C et al

in Abstract book - Symposium "Perspectives in Endocrinology" (2016, January)

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See detailUne forme compliquée d'hypercalcémie hypocalciurique familiale
Potorac, Iulia ULg; BETEA, Daniela ULg; MALAISE, Olivier ULg et al

in Abstract book - Symposium "Perspectives in Endocrinology" (2016, January)

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See detailDiscussion du symposium intitulé : "L’étude des pratiques d’évaluation sommative des enseignants : une urgence pour comprendre les compétences professionnelles en jeu ? "
Fagnant, Annick ULg

Conference (2016, January)

Symposium organisé par Lucie Mottier Lopez et Raphaël Pasquini.

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See detailReduced span spray – Part 1: Retention
Massinon, Mathieu ULg; De Cock, Nicolas ULg; Ouled Taleb Salah, Sofiene ULg et al

in Aspect of Applied Biology, International Advances in Pesticide Application (2016, January)

Maximising treatment efficiency for a given target lies mainly on depositing a maximum part of the spray volume within an optimal droplet size range, which has to be as narrow as possible to reduce ... [more ▼]

Maximising treatment efficiency for a given target lies mainly on depositing a maximum part of the spray volume within an optimal droplet size range, which has to be as narrow as possible to reduce retention variability and drift issues. The present work focuses on exploring the effect of span factor of the droplet size distribution on the final retention by a 3D target plant using a modelling approach with the final aim of guiding the development of a reduced span nozzle (Reduced span spray – Part 3: Design of narrow span nozzle). Five droplet size spans have been tested for three VMD and three wetting scenarios on the same 3D plant architecture. Performing a screening of the different parameters involved in spray retention with a modelling approach based on a deeper understanding of leaf/droplet interactions is a valuable approach for highlighting the optimal droplet size distribution maximising droplet retention for a given target/formulation combination. [less ▲]

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See detailNew insghts into nociception monitoring during general anesthesia
BONHOMME, Vincent ULg

Conference (2016)

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See detailAn integrated framework for forecasting travel behavior using Markov Chain Monte-Carlo simulation and profile Hidden Markov Models
Saadi, Ismaïl ULg; El Saeid Mustafa, Ahmed Mohamed ULg; Teller, Jacques ULg et al

in Proceedings of the 95th Annual Meeting of the Transportation Research Board (2016)

Recent advances in agent-based micro-simulation modelling have further underlined the importance of a thorough full synthetic population procedure to guarantee a correct characterization of the true ... [more ▼]

Recent advances in agent-based micro-simulation modelling have further underlined the importance of a thorough full synthetic population procedure to guarantee a correct characterization of the true population. We propose an integrated approach including Markov Chain Monte Carlo (MCMC) simulation and profiling based methods to catch the complexity and the diversity of agents of the true population through representative micro samples. The population synthesis method is capable of building the joint distribution of a given population with its corresponding marginal distributions (e.g. age, gender, socio-professional status etc.) using complete, partial conditional probabilities or both of them at the same time. Particularly, the estimation of socio-demographic variables and characterization of daily activity-travel patterns are included within the framework. Data stemming from the 2010 Belgian Household Daily Travel Survey (BELDAM) are used to calibrate the modelling framework. We illustrate that this framework catches in an efficient way the behavioral heterogeneity of travelers. Furthermore, we show that the proposed framework is adequately adapted to build large scale micro-simulation scenarios of transportation and urban systems. [less ▲]

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See detailBrain-derived neurotrophic factor (BDNF) in normal healthy and hemodialyzed populations
CAVALIER, Etienne ULg; Carlisi, A.S.; WATAR, Florence ULg et al

in Journal of Frailty & Aging (2016), 5(Supplement 1), 116

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See detailFaire de la musique : rythmes et rapports chez Mallarmé
Durand, Pascal ULg

in Bonnet, Antoine; Frangne, Pierre-Henry (Eds.) Mallarmé et la Musique, la Musique et Mallarmé (2016)

Inséparable du processus d'autonomisation du discours poétique et de la radicalisation que ce processus connaît chez lui, sur fond de propagande wagnérienne et de propagation du vers libre, le modèle ... [more ▼]

Inséparable du processus d'autonomisation du discours poétique et de la radicalisation que ce processus connaît chez lui, sur fond de propagande wagnérienne et de propagation du vers libre, le modèle musical prend, dans l'esthétique de Mallarmé, l'aspect d'un système de rapports généralisés à tous les paramètres de l'écrit. L'inhérence réciproque que le poète établit entre la "Musique" et les "Lettres", représentation imaginaire dont Un Coup de dés constitue la contrepartie réalisée, répond d'un côté à un matérialisme de la forme et de l'autre à un idéalisme fictif, voulant que les structures verbales et prosodiques s'offrent en miroir du système de rapports avec quoi se confond, en sa finitude sans extériorité, l’univers même. [less ▲]

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See detailDes chevaliers irréfléchis ? Panique et témérité dans les traités d’art militaire (c. 1330-c. 1530)
Masson, Christophe ULg

in Trévisi, Marion; Vissière, Laurent (Eds.) Le feu et la folie. L’irrationnel et la guerre (fin du Moyen Âge-1920) (2016)

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See detailSleep deprivation affects brain global cortical responsiveness
Gaggioni, Giulia ULg; Chellappa; Ly et al

Poster (2016)

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See detailAssessing the effect of traveler's nationality on daily travel time expenditure using Zero-Inflated Negative Binomial Regression models: results from the Belgian national household travel survey.
Eftekhar, Hamed ULg; Creemers, Lieve; Cools, Mario ULg

in Proceedings of the 95th Annual Meeting of the Transportation Research Board (2016)

In this paper, the effect of traveler's nationality on daily travel time expenditure is assessed using data stemming from the 2010 Belgian national household travel survey. In particular, different (zero ... [more ▼]

In this paper, the effect of traveler's nationality on daily travel time expenditure is assessed using data stemming from the 2010 Belgian national household travel survey. In particular, different (zero-inflated) negative binomial models were estimated to isolate the effect of nationality, after controlling for other contributing factors such as socio-demographics, residential characteristics, transport options and temporal characteristics. The results indicate that, even if one controls for a series of other influencing factors, nationality plays a significant role in differences in travel time expenditure. This finding is especially relevant in the development of policy packages that are targeted to tackle social inequalities. From a methodological perspective, different methodological options, i.e. two weighting schemes and two bootstrap solutions, were presented to provide sufficient support for the conclusions. In order to generalize the results in further studies, an oversampling of travelers with a different nationality is strongly recommended. Future research should focus more on the underlying psychological constructs of why ethnic and cultural differences persist, even if one accounts for other determinants. [less ▲]

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See detailRole of double-stranded DNA in allergic airway inflammation.
Marichal, Thomas ULg

Conference (2016)

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See detailDo the elderly feel older after exposure to negative aging stereotypes?
Marquet, Manon ULg; Missotten, Pierre ULg; Adam, Stéphane ULg

in International Psychogeriatrics (2016), 27(Supplement 1), 70-172

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See detailLes remèdes d'origine égyptienne utilisés dans la médecine vétérinaire antique
Marganne, Marie-Hélène ULg

in Gitton-Ripoll, Valérie (Ed.) La trousse du vétérinaire dans l'Antiquité et au Moyen Âge. Instruments et pratiques. Actes du IVe colloque international de médecine vétérinaire antique et médiévale (Lyon, 10-12 juin 2014) (2016)

Famous since the Odyssey (IV, 229-230) for its drugs, Egypt furnishes the Greek world with some medical substances already mentioned in the hippocratic treatises. Moreover, many Greek drug names have been ... [more ▼]

Famous since the Odyssey (IV, 229-230) for its drugs, Egypt furnishes the Greek world with some medical substances already mentioned in the hippocratic treatises. Moreover, many Greek drug names have been loaned from the Egyptian language, such as ἄμ(μ)ι for cumin, κίκι for castor-oil, κόμμι for gum, κῦφι for a complex preparation used for fumigation in cult practices, νίτρον for sodium carbonate, στίμμι for galena, σῶρυ for ferrous sulfate, and σάμψ(ο)υχον, for marjoram, whose name means “herb (sem) of Soukhos", another name for the crocodile god Sobek. The trade of drugs, spices and colourants, used in pharmacology, cosmetology, painting, cultual and magical practices, embalming rites and nutrition always flourished in Egypt and has intensified in Hellenistic and Roman times. As a continuation of the research on remedies of Egyptian origin in Greco-Roman pharmacopoeia, this article provides a list of Egyptian ingredients used in Greek and Latin veterinary prescriptions. The use of these substances is compared with recomandations from human medicine. Their availability and costs are also studied. [less ▲]

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See detailTechno-economic optimization of isolate micro-grids including PV and Li-Ion Batteries in the Bolivian context
Balderrama, Sergio; Canedo, Walter; Lemort, Vincent ULg et al

in Proceedings of ECOS 2016 - the 29th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (2016)

In Bolivia 44 % of the people living in rural areas do not have reliable access to electric energy. This is due to a combination of unfavourable geography and the lack of economic resources to achieve the ... [more ▼]

In Bolivia 44 % of the people living in rural areas do not have reliable access to electric energy. This is due to a combination of unfavourable geography and the lack of economic resources to achieve the necessary infrastructure. In this context, the main goal of this study is to evaluate the economic and technical feasibility of micro-grids including photovoltaic panels (PV), batteries systems and the possible inclusion of diesel generators for off-grid applications. To that aim, a linear optimization model was developed within the Pyomo framework in order to optimize both the installed capacities and dispatch of the PV, battery and diesel sub-systems. The defined objective function is the net present cost. The exogenous inputs of the optimization are the typical demand and solar irradiation of a region of Bolivia in order to achieve results close to real Bolivian systems. Results indicate that due to the high levels of subvention to hydrocarbons, the PV and Li-Ion technology are not yet competitive with a diesel generator for the electrification of rural areas. On the other hand a sensitivity analysis is performed and proves that if the government decide to stop part of the subvention or shared it between conventional and non-conventional sources, the PV becomes competitive and the Li-Ion batteries enter the market around 2020. [less ▲]

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See detailImpact of estetrol on breast cancer development, metastatic dissemination and angiogenesis
Gallez, Anne ULg; Gérard, Céline ULg; BLACHER, Silvia ULg et al

Poster (2016)

The increased risk of breast cancer and thromboembolism in women who take Hormone Replacement Therapy (HRT) currently is a major public health problem. The discovery of novel molecules with better safety ... [more ▼]

The increased risk of breast cancer and thromboembolism in women who take Hormone Replacement Therapy (HRT) currently is a major public health problem. The discovery of novel molecules with better safety profile would provide useful advances for patient care. Estretrol (E4) appears as a promising candidate for HRT. Indeed, in contrast to current treatment containing ethinyl estradiol or estradiol (E2), E4 has a minimal impact on liver cells activity supporting a decreased incidence on thromboembolic events. In preclinical studies, E4 has been effective against the main symptoms of menopause such as hot flushes, vaginal atrophy, and osteoporosis, from a starting dose of 0.3 mg/kg/day. The aim of this study was to define the impact of E4 on breast cancer development when it is used at concentrations effective for menopause symptom relief. Treatment of estrogen receptor (ER)-positive breast cancer-developing mice (MMTV-PyMT) with several concentrations of E4 has shown that 0.3 mg/kg/day E4 did not increase tumor development and metastasis dissemination. However, at 3mg/kg/day, E4 increased the growth of hormone-dependent tumors and their metastatic dissemination in ovariectomized and intact mice. This effect was similar to the one observed with E2 used at 0.08 mg/kg/day. In an in vivo model of ER-negative tumors, we observed that 3mg/kg/day E4 improved tumor growth by increasing angiogenesis, and subsequently decreasing necrosis and tumor hypoxia. In contrast, 0.3 mg/kg/day E4 did not induce any of these effects on ER-negative tumors and tumor microenvironment. In conclusion, we have shown that 0.3 mg/kg/day E4, already reported to prevent menopause symptoms, does not increase breast tumor growth, metastasis dissemination, and angiogenesis. However, similarly to E2, higher concentrations of E4 are pro-tumorous. These results support that E4, if it is used in strictly controlled clinical applications, could have no or only limited impact on breast cancer. [less ▲]

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See detailOptical characterization of Sol-Gel ZnO:Al thin films
Ivanova, T; Harizanova, A; Koutzarova, T et al

in Journal of Physics: Conference Series (2016), 700

This paper presents a sol-gel technological process for preparing thin films of ZnO and ZnO:Al. The effect of annealing treatments (500, 600, 700 and 800 oC) on their properties was studied. The ... [more ▼]

This paper presents a sol-gel technological process for preparing thin films of ZnO and ZnO:Al. The effect of annealing treatments (500, 600, 700 and 800 oC) on their properties was studied. The structural evolution with the temperature was investigated by using X-Ray diffraction (XRD). Fourier Transform Infrared (FTIR) and UV-VIS spectrophotometry were applied to characterizing the films’ vibrational and optical properties. The ZnO and ZnO:Al films possessed a polycrystalline structure. The films studied are highly transparent in the visible spectral range. The optical band gap values and the haze parameter were also determined. [less ▲]

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See detailNew challenges for the Vietnamese aquaculture sector
Nguyen Thi Khanh Hong, ULg; Tran Thi Nang Thu; Lebailly, Philippe ULg

in Nanhua University; Vietnam University of Commerce; Hue College of Economics (Eds.) International Conference "The economy of Vietnam in the integration period: opportunities and challenges: Proceedings (2016)

The supply chain of seafood in Vietnam has not been effectively designed and operated, and has not contributed to the sustainability of the sector. Problems include the protection of resources ... [more ▼]

The supply chain of seafood in Vietnam has not been effectively designed and operated, and has not contributed to the sustainability of the sector. Problems include the protection of resources, limitations in traceability, food safety issues and lack of branding/eco-certification. The objective of this article is first to characterize the recent development of this sector of economic activity. Particular attention will be linked to the importance of aquaculture in the trade balance of Vietnam. The authors also describe the issues that arise in the various constituent links in the aquaculture industry in Vietnam. [less ▲]

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See detailPerino del Vaga maestro di Marcello Venusti
Geremicca, Antonio ULg

in Agosti, Barbara; Leone, Giorgio (Eds.) Intorno a Marcello Venusti (2016)

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See detailThe syntax-semantics Interface in Earlier Egyptian: A Case study in Verbs of Cognition
Winand, Jean ULg

in Coping with Obscurity: The Brown Workshop on Earlier Egyptian Grammar (2016)

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See detailInvestigation of sol-gel yttrium doped ZnO thin films: structural and optical properties
Ivanova, T; Harizanova, A; Koutzarova, T et al

in Journal of Physics: Conference Series (2016)

Nanostructured metal oxide films are extensively studied due to their numerous applications such as optoelectronic devices, sensors. In this work, we report the Y–Zn–O nanostructured films prepared by sol ... [more ▼]

Nanostructured metal oxide films are extensively studied due to their numerous applications such as optoelectronic devices, sensors. In this work, we report the Y–Zn–O nanostructured films prepared by sol-gel technology from sols with different concentration of yttrium precursor, followed by post-annealing treatment. The Y doped ZnO thin films have been deposited on Si and quartz substrates by spin coating method, then treated at températures ranging from 300-800°C. XRD analysis reveals modification of the film structure and phases in the doped ZnO films. [less ▲]

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See detailProteomic landscapes of Pachycondila villosa ant venom by nano-scale chromatography and high resolution mass spectrometry
Cologna Takeno, Camila; Degueldre, Michel; Shibao, Priscilla et al

Poster (2016)

Introduction: It is estimated that the total number of molecules present in animal venoms is a collection of 40 million different compounds and, despite the efforts made, less than 0,01% of those ... [more ▼]

Introduction: It is estimated that the total number of molecules present in animal venoms is a collection of 40 million different compounds and, despite the efforts made, less than 0,01% of those compounds was identified and characterized to date. However, recent progresses in proteomic, in parallel with the advances of mass spectrometry have contributed to the study of those bio-libraries. The sensitivity improvement of these instruments allows the study of minimal amounts of sample still yielding a wealth of information. The present work aimed to perform a deep proteomic analysis of the venom from the ant Pachycondilyla villosa focusing on the de novo sequencing and the characterization of post translational modifications using high resolution mass spectrometers. Methods: The crude venom (0,5 ug) of P. villosa ants collected on Panga Natural Reserve (Uberlandia-Minas Gerais- Brazil) was diluted in 0,2% of formic acid and injected into a nanoACQUITY ULPC equipped with a monolithic PepSwift Capillary column 100µm x 25, hyphened to a Q Exactive Orbitrap mass spectrometer. The elution of the compounds was performed with a gradient of 3 to 50% of solution B in 80 minutes (A: H2O/FA 0.1%; B: ACN) at flow rate of 1 µL/min. All mass spectrometry analyses were performed in data dependent analysis (DDA) mode that automatically triggers the MS/MS experiments. The top 10 most intense peaks of each MS scan was fragmented by high-energy dissociation (HCD) and their corresponding MS/MS spectra were acquired. Preliminary data: Animal venoms are considered a rich source of biologically active compounds, which has been constantly selected and refined by the processes of natural evolution, in which each molecule is endowed with pharmacological properties highly valuable for scientific purposes. Despite the commitment, the exploration of these bio-libraries remains limited which might be related to the technological limitations that prevent full-scale investigation of these venoms. In addition, the conventional methods used to explore animal venoms are still time-consuming and require large amounts of samples, which restrict the studies for a few species. Unquestionably, the advances of proteomics and mass spectrometry instrumentations benefited a great deal the research on hymenoptera venom. Mostly due to their small size and therefore scarcely collected venom, this order has always been neglected and considered unfeasible to be studied through the known strategies. The present work represents the first report concerning the venom composition of P. villosa ant. The preliminary results already highlight the complexity of this venom, which showed to be composed by over 5000 different molecules. Most of those components fall into the 800- 4000 Da range, which is in agreement with other studies regarding ant´s venom composition. Most of the proteomics studies concerning ant venoms already revealed the presence of linear peptides below 5000 Da as major components. Those small peptides usually display antimicrobial activity and some of them hold additional insecticidal activity. Novel aspect: The results obtained already point out the biotechnological potential of P. villosa venom and highlight’s its complexity [less ▲]

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See detailIntegrating social aspects into sustainability assessment of biobased industries: Towards a systemic approach
Rafiaani, Parisa; Van Passel, Steven; Lebailly, Philippe ULg et al

in Benoit Norris, Catherine; Norris, Gregory (Eds.) 5th International Social LCA Conference Harvard, Cambridge, USA, June 13 - 15, 2016: book of abstracts (2016)

Considering its potential impacts on development, biobased industries require to be assessed according to the positive and negative effects they can bring to the society. Typically, the implications of ... [more ▼]

Considering its potential impacts on development, biobased industries require to be assessed according to the positive and negative effects they can bring to the society. Typically, the implications of biobased industries are considered in terms of economic, environmental and technical indices while social factors are usually neglected in the majority of impact assessments. This is mainly due to the fact that social issues are not easy to be quantitatively analyzed, measured and monitored. Indeed, the following issues need to be addressed: (i) how the social dimension is understood from different stakeholders’ perspective; (ii) how the social pillar can be properly integrated into sustainability evaluation methodologies which are mainly focused on environmental performance and (techno)-economic assessments of biobased industries. This review paper aims to answer these questions firstly through identifying the main social impacts and indicators of the biobased industries at local level in order to find an answer for the second question by analyzing and comparing the current methodologies for assessing social impacts in bioindustries. These methods mainly include Social Impact Assessment (SIA), Socio-economic Impacts Assessment (SEIA) and Social Life Cycle Analysis (SLCA). The latter, although is in its early steps of development, has been considered to have substantially promising methodological attributes for bioindustries’ social sustainability assessment. Although ongoing research tackles the incorporation of the environmental dimension into extended techno-economic assessments, no integration of the social pillar into such assessments has been made. Given that, this review focuses on the social dimension for integrated sustainability assessments of biobased industries to assess the main social impacts resulting from each operation or from the bioenergy sector. The current review focuses on the importance of social sustainability indicators and evaluation techniques. By discussing the methodologies for evaluating social impacts, a systemic methodology for assessing and integrating the social dimension into the sustainability assessments of bioindustries is developed, considering the four main iterative steps of an SLCA framework and three useful SLCA-based approaches including Product Social Impact Assessment; Prosuite and the UNEP SETAC Guidelines for SLCA of Products. It is concluded that the term systemic analysis implies that the whole approach needs the capacity to understand different subsystems and relations between them. Accordingly, the systemic assessment of biobased technologies should simultaneously include technological, economic, social and environmental dimensions. The result of this study identifies social impacts in the bioeconomy and particularly highlight the importance of considering social issues in biobased industries’ design and innovation. [less ▲]

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See detailPhage therapy against antimicrobial resistance, design of the first clinical study Phagoburn.
Jault, Patrick; Gabard, Jérôme; Leclerc, Thomas et al

in Critical Care (2016), 20(Suppl 2), 109

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See detailAgeism among nurses in oncology
Schroyen, Sarah ULg; Missotten, Pierre ULg; Jerusalem, Guy ULg et al

in International Psychogeriatrics (2016)

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See detailNouveautés sur le monitorage de la profondeur d’anesthésie
BONHOMME, Vincent ULg

Conference (2016)

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See detailstochastic stability of a rotational oscillator under gusty winds
Vanvinckenroye, Hélène ULg; Denoël, Vincent ULg

in Proceedings of the XIV Conference of the Italian Association for Wind Engineering (2016)

This work studies the rotational stability of an oscillator in a random wind velocity field. Its susceptibility to autorotation is assessed by the time necessary to reach a given energy barrier departing ... [more ▼]

This work studies the rotational stability of an oscillator in a random wind velocity field. Its susceptibility to autorotation is assessed by the time necessary to reach a given energy barrier departing from an initial energy level. This first passage time problem is solved by replacing the actual power spectral density of the loading by an equivalent δ-correlated noise. [less ▲]

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See detailInfluence of crossed fields in structures combining large grain, bulk (RE)BCO superconductors and soft ferromagnetic discs
Philippe, Matthieu ULg; Fagnard, Jean-François ULg; Wera, Laurent ULg et al

in Journal of Physics: Conference Series (2016), 695

Bulk (RE)BCO superconductors are able to trap record magnetic fields and can be used as powerful permanent magnets in various engineering applications such as rotating machines and magnetic bearings. When ... [more ▼]

Bulk (RE)BCO superconductors are able to trap record magnetic fields and can be used as powerful permanent magnets in various engineering applications such as rotating machines and magnetic bearings. When such superconducting (SC) “trapped field magnets” are combined to a ferromagnetic (FM) disc, the total magnetic moment is increased with respect to that of the superconductor alone. In the present work, we study experimentally the magnetic behaviour of such hybrid FM/SC structures when they are subjected to cycles of applied field that are orthogonal to their permanent magnetization, i.e. a “crossed-field” configuration. Experimental results show that the usual “crossed-field demagnetization” caused by the cycles of transverse field is strongly reduced in the presence of the ferromagnet. [less ▲]

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See detailCystatin C standardization decreases assay variation and improves assessment of GFR
Ebert, N; DELANAYE, Pierre ULg; Shlipak, M et al

Poster (2016)

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See detailPrevalence of concomitant bone and muscle wasting in patients from the SarcoPhAge Study
Locquet, Médéa ULg; Beaudart, Charlotte ULg; Reginster, Jean-Yves ULg et al

in Journal of Frailty & Aging (2016), 5(Supplement 1), 84

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See detailLinkages in the chicken chain of Vietnam: A case study in Kim Dong district, Hung Yen province
Bui Thi, Nga; Lebailly, Philippe ULg

in Global Business Research Journals (Ed.) Proceedings of the Fourth European Academic Research Conference on Global Business, Economics, Finance and Banking (EAR16Swiss Conference) (2016)

Chicken raising in Kim Dong district, Hung Yen province of Vietnam is currently still in the first stage of development with spontaneous, small-scale, and easily vulnerable. These things lead to the ... [more ▼]

Chicken raising in Kim Dong district, Hung Yen province of Vietnam is currently still in the first stage of development with spontaneous, small-scale, and easily vulnerable. These things lead to the inefficiency in the chain activities, and in the long run, all the chain actors will have less benefit. This study aims to analyze and assess the real situation of linkages in the chicken chain and proposed some recommendations to strengthen the linkages and improve the chicken chain in the Kim Dong district based on the questionaire survey data of chicken chain actors. The findings showed that the chicken chain in the study site was undeveloped. The chain actors included input suppliers, chicken raising farmers, traders, retailers and some restaurants and supermarkets. Farmers accounted for the most important role. The other actors in the chain play a role of a bridge between producers and consumers. Processing agent did not appear in the chain. The linkages in the chain were simple, informal and loose. The actors were discrete and lack of cooperation. To promote the linkage of the chicken chain, farmers should improve their linkages to improve their strength, their voice and their power. Farmers could establish cooperation groups or cooperatives to support each other. Cooperative among chain actors should be enhance to form a tight and official chain. Local authorities should support in finding markets, creating a bridge and an environment for chain actors. Extension and educational institutions should support farmers and other actors and stakeholders to improve knowledge of the chain, so they could understand the benefit and form effective chain. [less ▲]

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See detailTree light capture and spatial variability of understory light increase with species mixing and tree size heterogeneity
Ligot, Gauthier ULg; Ameztegui, Aitor; Courbaud, Benoît et al

Conference (2016)

Structurally heterogeneous forest ecosystems are generally considered to be more productive, resistant and resilient to future changes than simplified ones. The quantity of solar radiation available to ... [more ▼]

Structurally heterogeneous forest ecosystems are generally considered to be more productive, resistant and resilient to future changes than simplified ones. The quantity of solar radiation available to trees and the vegetation layer has been suggested to be a central driver among the possible mechanisms proposed to explain a greater productivity of heterogeneous stands. The idea that trees of different species and sizes can occupy complementary positions in space has led to the hypothesis that interception of radiation could increase in mixed and multi-layered forest stands, which should thus lead to an increase in production. In addition, the long-term sustainability of structurally heterogeneous forests with multiple coexisting species can only be ensured if the variability in light availability in the understory is sufficient for all species to be able to survive, grow and reproduce. However, better occupancy of canopy space should lead to reduced variability in understory light conditions. In this study, we investigate whether increasing overstory heterogeneity results in greater light capture by trees and greater variability in understory light. Greater light capture has been suggested as a possible explanation for the overyielding of complex stands and the greater variability in understory light as a mechanism for continuous recruitment of juvenile trees of various species. Based on allometric relationships developed in previous studies, we modeled the three-dimensional structure of forest stands (50 x 50 m) with 3 typical forest structures (single-layered, multi-layered and reverse j-shaped), 10 forest compositions combining beech, oak, fir and pine, 3 levels of basal area, and a fixed mean tree diameter (Figure 1). We predicted understory light conditions using the forest light interception model SAMSARALIGHT. The importance of each factor on understory light availability and variability was analyzed with three-way analyses of covariance. We found no evidence that increasing compositional or structural heterogeneity reduces understory light transmittance or increases tree light capture. Understory light transmittance in mixed stands was always intermediate between that is corresponding pure stands of the species involved in the mixture. Moreover, light transmittance slightly increased with increasing heterogeneity in forest structure. Stands composed of a single homogeneous tree layer transmitted less light than stands with two or more tree layers or stands composed of two or more species. Stand composition had the strongest influence on understory light in our simulations. Stand density was the second most important factor while heterogeneity in tree size had little effect. Compositional heterogeneity increased the variability in understory light conditions in some cases such as in fir-pine mixtures but adding beech to mixtures with oak generally limited variability in understory light, except in stands with very low basal area. Size inequality therefore increased understory light variability little and mainly in pure stands. The advantage of heterogeneous forest stands seems to lie in opportunities for the natural regeneration of various species to benefit from a diversity of light conditions in the understory rather than in opportunities to enhance light capture by the overstory although this effect depends on tree species composition. [less ▲]

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See detailTowards an “integrated conservation” : the contribution of R.M. Lemaire and Piero Gazzola during the first decade of ICOMOS (1965-1975)
Houbart, Claudine ULg

in Szmygin, Bogusław (Ed.) 'HERITAGE IN TRANSFORMATION. HERITAGE PROTECTION IN THE 21ST CENTURY - PROBLEMS, CHALLENGES, PREDICTIONS' (2016)

Respectively elected first President and first Secretary General during the first general assembly of ICOMOS in Cracow in 1965, Piero Gazzola and Raymond M. Lemaire have deeply contributed to the success ... [more ▼]

Respectively elected first President and first Secretary General during the first general assembly of ICOMOS in Cracow in 1965, Piero Gazzola and Raymond M. Lemaire have deeply contributed to the success of the newly born organisation. During the first years, they didn’t only provoke the creation of numerous national committees around the world, but they also positioned ICOMOS as a major actor of the international conservation scene, through the organisation of conferences and an active participation in the debates initiated by Unesco and the Council of Europe, for which ICOMOS acted as a consultant. The study of Raymond M. Lemaire’s archive, kept at the KU Leuven in Belgium, clearly shows that one of the major concerns of both Lemaire and Gazzola, who had been, in 1964, amongst the main authors of the Venice Charter, was to broaden the scope of the document in order to address the issue of pre-industrial city centres, threatened by late reconstruction or development projects mostly promoting functionalist approaches. Depending on the time available, this presentation will address one or various aspects of Lemaire’s and Gazzola’s contribution to the emergence of integrated conservation, consecrated by the European Charter and the Amsterdam Declaration of 1975, that is: the new ideas (social value of heritage for example) developed during the expert meetings organised by the Council of Europe in 1965-1968, where they both represented ICOMOS. These ideas are synthesised in the report “Saving the face of Europe” in 1973, the relation between these theoretical contributions and Lemaire and Gazzola’s contemporary field experience, the role of Eastern Europe experiences (D. Libal in Prague and M. Horler in Budapest) in the development of an appropriate methodology to address urban issues, the differences between the concept of “integral planning” proposed by Lemaire in 1973 and the “integrated conservation” that was promoted by the 1975 Council of Europe charters, an epilogue could mention the revision projects of the Venice Charter between 1975 and 1981. Based on my PhD about R.M. Lemaire, recently presented at the KU Leuven (Belgium), this presentation aims at clarifying and illustrating the shift from monument restoration towards city “reanimation” or “rehabilitation” during the late sixties and seventies, as well as paying tribute to the action of two of the most important figures of the beginnings of ICOMOS. [less ▲]

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See detailLes aspects financiers du contrat d'entreprise. Questions choisies
Kohl, Benoît ULg

in Kohl, Benoît (Ed.) Droit de la construction (2016)

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See detailChanges in the structure and the composition of microtubules within supporting cells of the organ of hearing during development.
Renauld, Justine ULg; Freeman, Stephen ULg; Thelen, Nicolas ULg et al

Poster (2016)

The auditory organ is a highly specialized structure composed by specific cellular types. The sensory cells are characterized by stereocilia at their apex and are necessary for the sound perception. These ... [more ▼]

The auditory organ is a highly specialized structure composed by specific cellular types. The sensory cells are characterized by stereocilia at their apex and are necessary for the sound perception. These cells are supported by supporting cells which contain up to 3000 microtubules and are formed by 15protofilaments (15pf) instead of the canonical 13, a unique fact among vertebrates. It was shown that a β-tubulin isoform can specify the microtubule architecture, such as the expression of the Moth β2 in the Drosophila testes imposed the 16pf structure on the corresponding subset of Drosophila microtubules, which normally contain 13pf. To determine the role of these tubulins in the auditory organ and their possible involvement in the formation of the unusual 15pf microtubules of supporting cells, we studied the spatiotemporal localization of five -tubulin isotypes (β1 to 5) as well as acetyl-α-tubulin within the hearing organ during development in rodents. By using confocal microscopy, we showed that with the exception of the β3-tubulin isoform that was specific to nerve fibres, all the different β-tubulin isoforms and acetyl-α-tubulin were mainly present in the supporting cells. Contrary to β1-4-tubulins, we also found that the β5-tubulin isoform appeared only at a key stage of the postnatal development. By using transmission electron microscopy, we examined the fine structure of microtubules at an early and a late postnatal stage. Our TEM study indicated that these cells are composed by 13pf microtubules at P2, but by 15pf microtubules at P25. We revealed further that this developmental stage coincide with the formation of two separate bundles of microtubules from a unique one in these supporting cells. In conclusion, the architecture and composition of microtubules present in the supporting cells change during development of the organ of Corti. Further experiments are now required to determine if these changes are related to the appearance of β5-tubulin. [less ▲]

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See detailThe effect of aging on associative memory for semantically-related word pairs
Folville, Adrien; Delhaye, Emma ULg; Bastin, Christine ULg

Poster (2016)

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See detailA Brief History of MPLS Usage in IPv6
Vanaubel, Yves ULg; Mérindol, Pascal; Pansiot, Jean-Jacques et al

in Lecture Notes in Computer Science (2016)

Recent researches have stated the fast deployment of IPv6. It has been demonstrated that IPv6 grows much faster, being so more and more adopted by both Internet service providers but also by servers and ... [more ▼]

Recent researches have stated the fast deployment of IPv6. It has been demonstrated that IPv6 grows much faster, being so more and more adopted by both Internet service providers but also by servers and end-hosts. In parallel, researches have been conducted to discover and assess the usage of MPLS tunnels. Indeed, recent developments in the ICMP protocol make certain categories of MPLS tunnels transparent to traceroute probing. However, these studies focus only on IPv4, where MPLS is strongly deployed. In this paper, we provide a first look at how MPLS is used under IPv6 networks using traceroute data collected by CAIDA. At first glance, we observe that the MPLS deployment and usage seem to greatly differ between IPv4 and IPv6, in particular in the way MPLS label stacks are used. While label stacks with at least two labels are marginal in IPv4 (and mostly correspond to a VPN usage), they are prevalent in IPv6. After a deeper analysis of the label stack typical content in IPv6, we show that such tunnels result from the use of 6PE. This is not really surprising since this mechanism was specifically designed to forward IPv6 traffic using MPLS tunnels through networks that are not fully IPv6 compliant. However, we show that it does not result from non dual-stack routers but rather from the absence of native IPv6 MPLS signaling protocols. Finally, we investigate a large Tier-1 network, Cogent, that stands out with an original set-up. [less ▲]

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See detailElp3 acetyl-transferase controls neuronal survival in the developing inner ear and is crucial to balance and hearing
Delacroix, Laurence ULg

Conference (2016)

Elp3 lysine acetyl-transferase, the catalytic subunit of the Elongator complex, has been assigned multiple roles in gene transcription, DNA methylation and protein translation efficiency. Given the ... [more ▼]

Elp3 lysine acetyl-transferase, the catalytic subunit of the Elongator complex, has been assigned multiple roles in gene transcription, DNA methylation and protein translation efficiency. Given the importance of acetylation homeostasis in controlling developmental processes together with recent reports implicating Elp3 in cortical neurogenesis, we investigated its role during inner ear formation. In the inner ear, we detected Elp3 transcript in the sensory epithelia of the entire otic vesicle at embryonic day E11.5. At later stages, Elp3 mRNA is strongly expressed in the vestibular and spiral ganglion neurons. To investigate the role of Elp3 in vivo, we used a conditional knock-out mice (Foxg1Cre) in which the expression of the acetyl-transferase is lost in early otocyst. These mice show obvious vestibular defects as indicated by a stereotyped circling ambulation, head bobbing, retropulsion and the absence of a reaching response in the tail-hanging test. Furthermore, we identified a severe hearing loss in Elp3cKO mice through Auditory Brainstem Responses. We show that Elp3 enzyme is crucial for neuronal survival in the spiral ganglion and in the vestibule and that it ensures a correct innervation pattern in the developing inner ear. In the absence of Elp3, a drastic increase in the number of apoptotic neurons was detected by active Caspase-3 and pH2AX immunostainings, particularly during the early stages of development (between E12.5 and E14.5). Postnatally, the neurons remaining in Elp3cKO cochleae seem to establish synaptic contacts with the sensory cells but show obvious signs of cell damage as evidenced by Transmission Electron Microscopy. Taken together, these data support a role for Elp3 in hearing and balance and point out an important role for acetylation homeostasis during inner ear formation. We are currently investigating the molecular mechanisms underlying Elp3 effect on neuronal survival and pathfinding. [less ▲]

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See detailintroduction et inter-duction; les règles du jeu.
Bodart, Céline ULg

in YOUNES, Chris; BONNAUD, Xavier; Bodart, Céline (Eds.) Encore l'architecture, encore la philosophie. (2016)

The international conference « encore l'architecture – encore la philosophie » is an initiative of the GERPHAU lab, research group for Philosophy, Architecture, Urban (Architecture School of Paris La ... [more ▼]

The international conference « encore l'architecture – encore la philosophie » is an initiative of the GERPHAU lab, research group for Philosophy, Architecture, Urban (Architecture School of Paris La Villette, UMR 7218 CNRS-Lavue), in partnership with Cité de l'architecture et du patrimoine, UMR-Lavue (Laboratoire Architecture, Ville, Urbanisme, Environnement) and philAU (a scientific thematic network : Philosophy, Architecture, Urban). This conference is the first ARENA conference (Architectural Research in Europe Network Association), a shared platform that aims to promote, support, develop and disseminate high-quality research in all fields of architecture in the widest sense. The network already includes researchers from leading European architecture schools. Synopsis. In Paris in 1987, a first event was held to celebrate the meeting of two disciplinary fields, entitled “Mesure pour mesure, architecture et philosophie”. Architects and philosophers were invited to discuss together how philosophy could capture better what determines architecture itself. Now, on the occasion of a new international conference, the GERPHAU Lab seeks to restate and refresh the question of the meeting of architecture and philosophy, by asking: what still remains today of our cross-over practices? ENCORE L'ARCHITECTURE, ENCORE LA PHILOSOPHIE. To build together these reflections about the future of our respective practices, why don't we hold to the hypothesis that our recent histories, in architecture as well as philosophy, could be written through the addition of a few prefixes? In linguistics, a prefix does not only serve the formation of a new word: it also regenerates the question of the meaning of the word. It is a discursive invention and its real strength lies in its ability to engage a new type of relationship with the world. Re-, alter-, eco-, co-, bio-, etc., these prefixes have clung to both our discourses as well as our disciplines. But in what way do they question the meaning of our practices? In archi-tecture as in philo-sophy, how do these successive re-definitions put the fundamentals into question, and how do they disturb their alleged unity inherited from Ancient Greece? And, moreover, how does the over-use of prefixes help us to understand what still makes sense in philosophy, or what still makes sense in architecture? The key issue of this conference, ‘Encore l'architecture, Encore la philosophie’, will be to trace backwards the stream of architectural and philosophical ideas through the thematic of the prefix as constituting a form of narrative. The conference will aim to trace the paths of their development, and other influencing factors, so as to return to those meetings between architecture and philosophy which already have oriented, re-oriented and sometimes dis-oriented our speech. It will be a meeting at which we invite participants to retell the story of our disciplines in order to grasp what it is still unique today about our practices. [less ▲]

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See detailA new index to measure the human well-being in Wallonia and its communes (South of Belgium)
Burny, Philippe ULg

in Petropoulos, D.; Kyriazopoulos, G. (Eds.) 1st International Conference of Development and Economy (ICODECON) 2-4 October 2015: The advantages and disadvantages of Economic Crises: Conference proceedings (2016)

In 2012, the Walloon Government ordered the Walloon Institute for Prospective, Evaluation and Statistics (IWEPS) to calculate five indexes in order to guide and evaluate the public actions, together with ... [more ▼]

In 2012, the Walloon Government ordered the Walloon Institute for Prospective, Evaluation and Statistics (IWEPS) to calculate five indexes in order to guide and evaluate the public actions, together with the GDP. The index for the conditions of human well-being (CWBI) is presently the first step in the elaboration of the wellbeing index. The methodology is the one used by the Council of Europe. Actually, the CWBI is calculated by using 60 basic indicators, gathered into 8 families. After normalisation, the CWBI is the arithmetic mean of the 60 basic indicators, each of them having the same weight. The CWBI was calculated for the 262 communes of Wallonia and varies from 0.428 to 0.674, with a regional mean of 0.572. An opposition between urban and rural communes clearly appears, the last ones having the best scores. Communes along the borders of Germany and Luxemburg have the highest indexes, while communes in the old industrial areas have the lowest scores. Employment, income, family relations and security are the factors which are the most narrowly linked to the CWBI. At the communal level, social and security expenses per capita have a significant and negative correlation coefficient with the CWBI. In the future, in order to elaborate a finer index, new data, up to now not directly available, will be collected at the communal level, about quantitative and qualitative aspects. [less ▲]

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See detailHabits des blogues, habits des blogueurs
Vintila, Elena-Georgiana ULg

in Parpală, Emilia (Ed.) Reprezentări ale identității în spațiul literar, lingvistic și cultural (2016)

More and more teachers of FLE choose to create a blog, to help their own students or by providing a database for other learners. The blog puts the teacher in a creative position - he must choose the ... [more ▼]

More and more teachers of FLE choose to create a blog, to help their own students or by providing a database for other learners. The blog puts the teacher in a creative position - he must choose the colors of each section, the size of the written form, the images that accompany the text, etc. Specific sections of the blog, - one usually titled Who am I? – leave to the professor / blogger the opportunity to present themselves and even to insert a picture of him. He becomes a graphic artist, a designer and organizer of the visual staging of the page. This grade is taken into account here - how teachers present themselves. They choose personal images or their preferences are moving towards the avatars? We chose 10 blogs of French teachers (5 men and 5 women) where bloggers use different forms of plural nature presentation to see how the clothes fit into the personal image of each one. [less ▲]

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See detailHow do small and medium architectural firms deal with architectural complexity? A look into digital practices
Stals, Adeline ULg; Jancart, Sylvie ULg; Elsen, Catherine ULg

in Hentila, Helka-Liisa; Herneoja, Aulikki; Pihlajaniemi, Henrika (Eds.) et al Proceedings of te 34th eCAADe annual conference: Complexity and Simplicity (2016)

Digital design tools are nowadays deeply rooted in most architectural design processes. Either used as a way to communicate a designed artifact, or rather as a medium to test innovative morphologies ... [more ▼]

Digital design tools are nowadays deeply rooted in most architectural design processes. Either used as a way to communicate a designed artifact, or rather as a medium to test innovative morphologies (lately referred to as non-standard architecture), these design tools profoundly shape the way architects envision complexity all along their day-to-day tasks. The large teams of "star-architects" were able to develop dedicated and specific strategies and digital tools to overcome some of the technological gaps they were faced to when using commercial packages. But how are small and medium firms dealing with the inherent complexities of such software? This contribution analyzes how those firms (and more specifically the Walloon ones) deal with the growing complexity of digital tools, both in terms of use and interdisciplinarity. [less ▲]

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See detailExergy analysis applied to performance of buildings in Europe
Sartor, Kevin ULg; Dewallef, Pierre ULg

in Proceedings (2016)

Energy performance of buildings generally assesses the energy consumption of buildings such as heating, domestic heat water, ventilation systems... However, this approach is based on the first law of ... [more ▼]

Energy performance of buildings generally assesses the energy consumption of buildings such as heating, domestic heat water, ventilation systems... However, this approach is based on the first law of thermodynamics and considers only the quantity of energy used without considering its “quality” and leads to a lack of information about the energy conversion processes. This is particularly true in the new low-energy buildings where sometimes high temperatures sources are used to meet low-temperature needs. The exergy analysis of a system, based on first and second thermodynamic laws, can be used to overcome this. In this work, it is proposed to compare the energy and the exergy consumption of several kinds of buildings to determine the best systems in terms of energy and exergy needs. The energy demand calculations are performed using the official software available in Belgium and some assumptions are implemented to consider the exergy approach. As exergy calculations require a reference state, some different climatic conditions are also investigated. Finally, some conclusions are discussed to rank the sources of energy and their related exergy losses. [less ▲]

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See detailAn approach for detection of glomeruli in multisite digital pathology
Marée, Raphaël ULg; Olivo-Marin, Jean-Christophe; Meas-Yedid, Vannary

in Proceedings International Symposium on Biomedical Imaging (2016)

We present a novel bioimage informatics workflow that combines Icy and Cytomine software and their algorithms to enable large-scale analysis of digital slides from multiple sites. In particular, we apply ... [more ▼]

We present a novel bioimage informatics workflow that combines Icy and Cytomine software and their algorithms to enable large-scale analysis of digital slides from multiple sites. In particular, we apply this workflow on renal biopsies and evaluate empirically our approach for the automatic detection of glomeruli in hundreds of tissue sections. [less ▲]

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See detailPermutations and shifts
Charlier, Emilie ULg

in Lecture Notes in Computer Science (2016), 9840

The entropy of a symbolic dynamical system is usually defined in terms of the growth rate of the number of distinct allowed factors of length $n$. Bandt, Keller and Pompe showed that, for piecewise ... [more ▼]

The entropy of a symbolic dynamical system is usually defined in terms of the growth rate of the number of distinct allowed factors of length $n$. Bandt, Keller and Pompe showed that, for piecewise monotone interval maps, the entropy is also given by the number of permutations defined by consecutive elements in the trajectory of a point. This result is the starting point of several works of Elizalde where he investigates permutations in shift systems, notably in full shifts and in beta-shifts. The goal of this talk is to survey Elizalde's results. I will end by mentioning the case of negative beta-shifts, which has been simultaneously studied by Elizalde and Moore on the one hand, and by Steiner and myself on the other hand. [less ▲]

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See detailTowards a more sustainable development model in Belgium: the role of organic farming
Burny, Philippe ULg

in Petropoulos, D.; Kyriazopoulos, G. (Eds.) 2nd International Conference of Development and Economy (ICODECON) 9-12 June 2016 : book of abstracts (2016)

During the last years, organic farming considerably developed in Belgium. In 2014, it represented 5% of the total agricultural area and 4.5% of the number of farms [1]. Organic farming is mainly developed ... [more ▼]

During the last years, organic farming considerably developed in Belgium. In 2014, it represented 5% of the total agricultural area and 4.5% of the number of farms [1]. Organic farming is mainly developed in Wallonia where its share of the agricultural area exceeded 10% in 2014. Pastures for bovine production (meat and milk) and general crops (mainly cereals) are the most common cultivated areas. Poultry, eggs and vegetables recorded the highest increases. This success is partly the result of a strategic plan for the development of organic farming in Wallonia towards 2020 [2] and of remarkable financial support for the farmers [3]. More than 8,400 food and non-food organic products are available for the consumers. The number of prepared and processed food products is increasing. The market share of food organic products is still low, but continuously increasing: 1.3% in 2008, 2.3% in 2014. Remarkably, the expenses for organic food products still increased by 50% in 2014, while the total expenses for common food products declined for the first time since many years. The most important expenses per capita concern dairy products (5.40€), vegetables (4.74€), fruits (3.71€) and bovine and pork meat (2.84€). The main locations where food organic products are bought are supermarkets (45%) and specialized shops (31%). Families with children and high income and retired people with high income count for more than 5% of the expenses for organic food, while single persons aged over 40 are the category which spend the highest share of its income (4.1%) for organic food. In such conditions, organic farming is an important topic of the strategic plan for sustainable development presently proposed for discussion to the Walloon citizens. [less ▲]

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See detailIndoor Joinery and Furniture Made for Eighteenth-Century Houses in Liège (Belgium)
Gilles, Isabelle ULg

in Sosnowska, Philippe; Charruadas, Paulo; Fraiture, Pascale (Eds.) et al From Carpentry to joinery : floors and ceilings, shutters and frames, doors and panelling in medieval and modern architecture (2016)

Though few eighteenth-century houses in Liège have conserved their original wooden furniture or fittings, archival research reveals that these elements constituted a key aspect of the domestic interior ... [more ▼]

Though few eighteenth-century houses in Liège have conserved their original wooden furniture or fittings, archival research reveals that these elements constituted a key aspect of the domestic interior. The present work draws largely on a series of public announcements known as Rendages proclamatoires which concerned property belonging to orphans sold by public auction, that exist. From 1697 to 1765, these sources provided descriptions of 257 houses situated within the city walls. The wooden furniture and fittings of eighteenth-century Liegerian houses can clearly be seen to be pertain to far more than the sole history of joinery: they also tell the story of Liege’s domestic living spaces in terms of social structure and cultural change. As such they eloquently illustrate the fact that it is only by taking into account the Old Regime’s conception of architecture as a total entity that we can today work towards establishing an increasingly just, coherent and complete understanding of ancient edifices. [less ▲]

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See detailExperimental validation of heat transport modeling in district heating networks
Sartor, Kevin ULg

in Proceedings of Conference (2016)

District heating networks (DHN) are generally considered as a convenient, economic and environmental-friendly way to supply heat to a large amount of buildings. Some modelling technics are required to ... [more ▼]

District heating networks (DHN) are generally considered as a convenient, economic and environmental-friendly way to supply heat to a large amount of buildings. Some modelling technics are required to consider the dynamic behaviour of district heating network to design them correctly, spare investment costs and limit the heat losses related to the use of a too high operating temperature. For the same reasons, the DHN control or retrofit of installations also requires the assessment of the DHN dynamic behaviour. To achieve this, the heat transport in DHN, which is one of the key issues in the behaviour of a whole centralized heating system, has to be correctly modelled. Previous work evidenced current limitations of one dimensional finite volume method to model heat transport in pipes and proposed an alternative method considering the thermal losses and the inertia of the pipes. The present contribution intends to experimentally validate this model on a test rig facility available in the Thermodynamics laboratory of the University of Liège (ULg, Belgium) and on an existing district heating network. For both experimental facilities, the current model shows good agreement between experimental data and simulation results for a large range of water velocities. Moreover, it is shown that the thermal inertia of the pipe has a significant influence on the outlet pipe temperature profile. [less ▲]

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See detailRandomized, Double-Blinded, Controlled Clinical Trial Evaluating the Efficacy of a Diet Supplemented with Curcuminoids Extract, Hydrolysed Collagen and Green Tea Extract in Dogs with Osteoarthritis
Barthélémy, Nicolas; Comblain, Fanny ULg; Lesponne, Isabelle et al

in Veterinary and Comparative Orthopaedics and Traumatology (2016)

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See detailPrevalence of frailty among nursing home, according to different operational definitions
Buckinx, Fanny ULg; Reginster, Jean-Yves ULg; GILLAIN, Sophie ULg et al

in Journal of Frailty & Aging (2016), 5(Supplement 1), 69

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See detailÉvaluation des impacts économiques indirects selon un scénario de risque d’inondation
Saadi, Ismaïl ULg; El Saeid Mustafa, Ahmed Mohamed ULg; Teller, Jacques ULg et al

in Recueil des articles des 34èmes Rencontres Universitaires de Génie Civil de l'AUGC (2016)

In this paper, we propose an integrated framework to estimate the indirect economic impact due to flood risk in Belgium. By taking into account the land-use change and different scenarios of climate ... [more ▼]

In this paper, we propose an integrated framework to estimate the indirect economic impact due to flood risk in Belgium. By taking into account the land-use change and different scenarios of climate change, the economic impact can be estimated at the micro-scale level using an Input-Output (I-O) approach. I-O is an econometric model that represents the structure of an economy in the form of a Production-Consumption (P-C) matrix. From a physical point of view, it corresponds to commodity flows between different sectors classified according to the NACE code. This approach is implemented to describe and to better understand the propagation of higher order damage through the entire economic structure. This tool can be used to take strategic decisions in the case of transport and land-use policies within vulnerable areas. [less ▲]

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See detailAntonymic co-presence: overview of the syntactic patterns model
Steffens, Marie ULg

in Studies van de BKL - Travaux du CBL - Papers of the LSB (2016), 10

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See detailImplementation of the green payment within the scheme of the new Common Agricultural Policy (2015-2020): first results for 2015 in Wallonia (South of Belgium)
Burny, Philippe ULg; Terrones Gavira, François ULg

in Quality-Access to Success (2016), (Supplement), 10-14

At the end of 2013, a new Common Agricultural Policy was defined at the European level, including the implementation of the so-called “green payment”, which obliges farmers to respect three new conditions ... [more ▼]

At the end of 2013, a new Common Agricultural Policy was defined at the European level, including the implementation of the so-called “green payment”, which obliges farmers to respect three new conditions in order to get financial support through direct payments. The year 2015 being the first implementation year, the consequences on Walloon agriculture are examined. It appears that 50% of Walloon farmers are not obliged to practice crop diversification, while 16% are obliged to have at least two crops on their arable land and 33% are obliged to have at least three crops on their arable land. Less than 1% does not respect the new diversification rules. Concerning the obligation to have at least 5% of ecological focus area on the arable land, it appears that 54% of Walloon farmers are in conditions not to be obliged to respect the measure. When they implement the measure, the percentage of ecological focus areas in arable land reaches 6.9% as a mean and 2.4% do not reach the requested 5%. Finally, it can be said that the green payment does not represent a big constraint for Walloon farmers, though eventual economic consequences are still to be precised, while environmental benefits are strengthened. [less ▲]

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See detailPharmacokinetic (PK) effects and safety of olaparib in combination with tamoxifen, anastrozole or letrozole : Phase I study
Plummer, R.; Verheul, H.M.; Langenberg, M. et al

in Journal of Clinical Oncology (2016), 34

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See detailMethodology to model the energy vulnerability of households in Europe based on the current mapping of fuel poverty and transport poverty and its likely evolution until 2040
Pierson, Charlotte; Reiter, Sigrid ULg

in Proceedings of the Urban Transition Global Summit 2016 (2016)

Fuel poverty refers to a situation in which an individual or household is not able to meet their basic energy needs. Fuel poverty is currently growing in the European Union. Research in this field is ... [more ▼]

Fuel poverty refers to a situation in which an individual or household is not able to meet their basic energy needs. Fuel poverty is currently growing in the European Union. Research in this field is often limited to the assessment of the current risk of fuel poverty based on energy consumptions due to housing. Urban sprawl generates a significant increase in energy consumption related to daily mobility, which generates energy poverty related to transportation needs. This article presents a methodology for modeling the current and future energy poverty of households in Europe on the basis of energy consumptions due to housing, to daily mobility and their combination. Indicators for fuel poverty and transport poverty will be based on Hills’ method, which is widely recognized internationally for fuel poverty assessment and which takes into account two thresholds: energy expenses of households and their available residual income. This article will outline the spatial modeling process of energy costs due to dwellings and mobility thanks to the coupling of a GIS tool, cadastral datasets, existing methods for the assessment of buildings and transport energy consumptions and updated databases (EPB certificates, detailed mobility surveys, data from smart meters, mobile phones and GPS). Different scenarios will be selected to predict the evolution of fuel and transport poverty until 2040 on the basis of national and European prospective studies or, alternatively, based on the historical evaluation of some key parameters and their extrapolation. The evolution of built-up areas will be model thanks to the multinomial logistic regression model (MLR) that enables to visualize the consequence of different urban densities expansion. The different parameters that will influence the evolution of fuel and transport poverty until 2040 will be highlighted (climate change, urban expansion, fuel prices, energy performance of buildings and vehicles, etc.). [less ▲]

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See detailConditional expected static wind loads
Blaise, Nicolas ULg; Andrianne, Thomas ULg; Denoël, Vincent ULg

in In Vento 2016 (2016)

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See detailSocial Life Cycle Assessment in Biobased Industries: Identifying Main Indicators and Impacts
Rafiaani, Parisa; Van Passel, Steven; Lebailly, Philippe ULg et al

in Benoit Norris, Catherine; Norris, Gregory (Eds.) 5th International Social LCA Conference Harvard, Cambridge, USA, June 13 - 15, 2016: book of abstracts (2016)

Assessing social impacts of various products, services and human activities has achieved an increasing interest worldwide. The nature of sustainability of biobased industries from a social point of view ... [more ▼]

Assessing social impacts of various products, services and human activities has achieved an increasing interest worldwide. The nature of sustainability of biobased industries from a social point of view is how and to what extent they are perceived by society, and how various societies take advantages from such activities. However, an important issue is that social factors are not usually easy to be quantitatively analyzed and although the social impacts might be very remarkable, especially at the local scale, they have been not possible to be investigated in the majority of impact evaluations in the past. Despite the existence of many different methodologies towards Social Life Cycle Assessment (SLCA) to address social impacts of various businesses and industries, most of them impartially address social performances of an industry. The aim of this paper is to highlight the main criteria that need to be taken into account in SLCA approaches for identifying the social indicators and impacts of biobased industries that is a timely topic worldwide toward climate change mitigation goals. Accordingly, considering the general approach of SLCA and particularly its inventory analysis phase for impact categories and indicator determinations, the paper provides an overview of the existing guidelines and frameworks for identifying social indicators and impact categories associated with bio-industries. In conclusion, main impact categories and indicators formulated in the existing frameworks applied to biobased industries are demonstrated as a basic set of applicable elements of social dimensions in evaluating bio-industries’ sustainability when conducting SLCAs. The state of the art for this study mainly includes leading journal articles, international reports and conference papers up to and including 2016 on SLCA in biobased industries. According to the reviewed frameworks in this study, quantitative, midpoint and site-specific data are the main elements taken into account when collecting the data for biobased product social impact assessment. This study also reveals that although SLCA is in its early steps of development and despite in numerous cases, conducting a comprehensive SLCA is not yet feasible, it has been considered to have substantially promising methodological attributes that can help policymakers and other stakeholders to quantify and assess sustainability of bio-industries from the social perspective. Recommendations for further research work concerning SLCA in bio-industries are also presented. [less ▲]

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See detailRecycled and bio-based materials for sustainable construction
Courard, Luc ULg

Conference (2016)

Recycling is not a luxury or a fashion but a necessity that comes from a very simple fact: we live in a limited world. Contrary to what we have believed for a long time, our human activity is not ... [more ▼]

Recycling is not a luxury or a fashion but a necessity that comes from a very simple fact: we live in a limited world. Contrary to what we have believed for a long time, our human activity is not infinitely expandable but limited in terms of energy, natural resources, space or simply adaptation capacity of nature. From this finding and that awareness must result a behavior that essentially is based on the respect we have for ourselves and therefore for nature (to take car and not to convert). Recycling, reuse, re-use, regeneration or recovery are behaviors that aim to minimize the energy used, to take maximum advantage of the material and to reduce the risk of pollution during the manufacture, use or disposal of these materials. In general, this means that it is desired to delay as much as possible when an object becomes waste. This requires a vision of the life of material or object (Life Cycle Assessment), in which a balance sheet is prepared at every stage of life - from raw material extraction, manufacturing, processing, recycling and elimination. Additionally to materials known as "natural" or “bio-based”, the construction industry increasingly incorporates these alternative materials, even if not without some psychological, normative and technical reservations. As a significant source of pollution (CO2, solid waste, ...), construction is a major reservoir for recovery of waste and industrial by-products: alongside the traditional production process of construction materials and the resurgence of bio-based materials, recycled materials also contribute to the development of materials for future. [less ▲]

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See detailAntiquité tardive et christianisme africains dans l'Africa romana : un bilan historiographique
Fialon, Sabine ULg

in Ruggeri, Paola (Ed.) L’Africa romana XX. Momenti di continuita e rottura : bilancio di 30 anni di convegni de l’Africa romana (2016)

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See detailHistoire et expérience fondatrice dans Sein und Zeit
Zincq, Aurélien ULg

in Bulletin d'Analyse Phénoménologique (2016)

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See detailPain assessment and treatment
Chatelle, Camille ULg

Conference (2016)

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See detailAssessment of Emerging Renewable Energy-based Cogeneration Systems for nZEB Residential Buildings
Carmo, Carolina; Dumont, Olivier ULg; Nielsen, Mads Pagh et al

Conference (2016)

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See detailThe Cybernetic Tower by Nicolas Schöffer: the conservator’s role between continuity and historicity of the production
D'Haenens, Manon ULg

in Hermens, E, Robertson, Fr. (Ed.) Authenticity in Transition, Changing practices in art making and conservation, Proceedings of the NeCCAR Conference, Glasgow december 2014 (2016)

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See detailStudy of cell growth on/in modified polymer matrices as scaffolds for tissue engineering
Markvicheva, E.; Drozdova, M.; Demina, T. et al

Poster (2016)

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See detailÉvaluation des réparations en béton et identification des principaux facteurs d’influence
Bissonnette, Benoît; Courard, Luc ULg; Garbacz, Andrzej et al

in Courard, Luc; Collin, Frédéric; Cerfontaine, Benjamin (Eds.) RUGC 2016 (2016)

La réparation et le renforcement des structures existantes en béton comptent parmi les plus importants défis auxquels les ingénieurs civils sont confrontés aujourd’hui et qu’ils devront relever dans les ... [more ▼]

La réparation et le renforcement des structures existantes en béton comptent parmi les plus importants défis auxquels les ingénieurs civils sont confrontés aujourd’hui et qu’ils devront relever dans les années à venir. Les préoccupations actuelles concernant le développement durable favorisent la réfection au détriment de la construction neuve et ne peuvent que renforcer cette tendance. Des efforts concertés de la part des scientifiques et ingénieurs sont encore nécessaires afin d’améliorer la conception des réparations en béton et d’en assurer la qualité et la fiabilité attendues. L’un des aspects essentiels de la durabilité des réparations en béton et des revêtements ou traitements de surface est la qualité de l’adhérence entre le matériau de réparation et le béton existant. Le présent article résume les principales conclusions de travaux réalisés en collaboration en vue d’identifier les facteurs influençant l’adhérence des réparations (la rugosité, le degré de saturation et la carbonatation du substrat) et l’évaluation de celle-ci en conditions in situ (type de chargement, alignement de l’appareil). Sur la base des résultats recueillis, des recommandations ont été émises dans un guide du USBR [less ▲]

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See detailDiscours et stratégies dans les déclarations criminelles élaborées devant les notaires liégeois aux XVIIe et XVIIIe siècles
Drécourt, Aurore ULg

in Dire, (d)écrire, représenter la violence, Colloque international du CRIHAM (2016)

Le présent projet de communication propose une étude sur la manière de représenter la violence ainsi que son instrumentalisation à des fins personnelles dans des actes relevant de la pratique notariale ... [more ▼]

Le présent projet de communication propose une étude sur la manière de représenter la violence ainsi que son instrumentalisation à des fins personnelles dans des actes relevant de la pratique notariale aux XVIIe et XVIIIe siècles à Liège. L’analyse de ces sources est novatrice pour une histoire de la criminalité. En effet, les historiens se sont avant tout centrés sur les archives des cours judiciaires. Il semble cependant que les populations d’Ancien Régime n’allaient pas systématiquement devant le juge pour régler leurs conflits. Ainsi des accords, qui ne seraient sans doute jamais parvenus à la connaissance de l’historien par la seule étude des archives criminelles, émergent dans les actes relevant de la pratique notariale. Outre ces accommodements clairement identifiés dans les minutes, les populations d’Ancien Régime se déplacent également devant notaires pour que ceux-ci retranscrivent, plus ou moins fidèlement, le récit subjectif d’un évènement vécu. Ces déclarations criminelles seront ensuite, selon le choix du comparant, enregistrées ou non au greffe. En effet, cette trace d’accusation ou de témoignage ne parvient pas systématiquement aux autorités. Tout dépend de l’évolution du conflit et parfois le simple déplacement chez le notaire pousse la partie adverse à s’accommoder avant le passage en justice. Ces déclarations criminelles constituent des sources particulièrement intéressantes pour observer la psychologie, les perceptions et les interprétations de la violence des victimes et des agresseurs. Nous proposons ici d’étudier les stratégies discursives mises en œuvre lors de la passation d’une déclaration devant le notaire et sur ce qu’elles révèlent de la société qui les produit. En effet, ces témoignages constituent une véritable mise en scène de la violence, qui est instrumentalisée afin d’obtenir gain de cause lors d’un conflit. Comment les comparants s’y prennent-ils ? Quels sont les topoï les plus souvent utilisés ? Observe-t-on une évolution de ces discours entre le XVIIe et le XVIIIe siècle ? Cette analyse permettra de mettre en lumière la manière dont la société attribuait différents seuils de gravité à des actes violents, leurs circonstances aggravantes et comment ces représentations de la société étaient sciemment utilisées par les intervenants pour déconstruire la gravité de leurs actes. Enfin, étudier la violence et les discours des personnes impliquées permet également une meilleure compréhension de phénomènes sociaux que nous proposons de souligner, comme l’importance de l’honneur et sa place essentielle dans la société d’Ancien Régime. [less ▲]

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See detailGalectin-1 is involved in osteoclast biology
Muller, Joséphine ULg; Binsfeld, Marilène; DUBOIS, Sophie ULg et al

Poster (2016)

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See detailImpact of the new Common Agricultural Policy (2015-2020) on the value of direct payments and on farmers’ income in Wallonia (South of Belgium)
Burny, Philippe ULg; Terrones Gavira, François ULg

in Kyriazopoulos, G.; Petropoulos, D. (Eds.) 1st International Conference of Development and Economy (ICODECON) 2-4 October 2015: The advantages and disadvantages of Economic Crises: Conference proceedings (2016)

A new Common Agricultural Policy was defined in 2013, with a new structure for direct payment. In Wallonia, the government implemented the following scheme: 30% for the green payment, 29.9% for the basic ... [more ▼]

A new Common Agricultural Policy was defined in 2013, with a new structure for direct payment. In Wallonia, the government implemented the following scheme: 30% for the green payment, 29.9% for the basic payment, 17% for the additional payment for the first 30 ha, 1.8% for young farmers and 21.3% for couple payments. Due to convergence, the mean support through direct payments will decline from 21,900 € in 2014 to 19,283 € in 2019. The number of losers will be equivalent to the number of gainers. Regions where cereals and sugar beet are produced will lose the most, where the region suitable for cattle raising will gain somewhat. There will be a better distribution of direct payments among farmers: the Gini index will decline from 0.55 to 0.49. The highest negative impact on income will occur for the specialties “green crops”, “crops and dairy cattle” and “crops and non-dairy cattle”: the least negative impact will be observed within the specialties “dairy cattle”, “meat cattle” and “dairy and meat cattle”. The reform will be more profitable for the farms from 30 to 50 ha and will mainly impact the largest farms. Finally, the CAP reform implemented in Wallonia guarantees a smooth evolution to 2020. [less ▲]

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See detailLes anaphores rhétoriques : des rafales de motifs ?
Longrée, Dominique ULg; Mayaffre, Damon; Mellet, Sylvie

in Mayaffre, Damon; Poudat, Céline; Vanni, Laurent (Eds.) et al Statistical Analysis of Textual Data, Proccedings of 13th International Conference on Statistical Analysis od Textual Data, 7-10 June 2016, Nice (2016)

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See detailEnvironmental Impact Assessment of Rail Freight Intermodality
Merchan Arribas, Angel ULg; Belboom, Sandra ULg; Léonard, Angélique ULg

in Pombo, Joao (Ed.) The Third International Conference on Railway Technology: Research, Development and Maintenance (2016)

The European Commission’s White Paper on transport seeks to achieve an efficient and sustainable balance between the various transport modes. In this context, BRAIN-TRAINS is a project supported by ... [more ▼]

The European Commission’s White Paper on transport seeks to achieve an efficient and sustainable balance between the various transport modes. In this context, BRAIN-TRAINS is a project supported by Belgian Federal Government that deals with rail freight intermodality, approaching the problem from an interdisciplinary perspective. BRAIN-TRAINS will be able to answer the transition involved in transportation in Belgium. To analyse the sustainability impact of rail freight intermodality in Belgium, the life cycle assessment methodology will be used. The rail freight system is divided in this paper into rail operation, rail equipment and rail infrastructure. This paper shows the methodology to calculate the transport emissions related with the energy consumption during the rail operation. [less ▲]

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See detailImpacts of wheel traffic on the physical properties of a Luvisol under reduced and conventional tillage
Saur, Marie-Laure ULg; Destain, Marie-France ULg; Roisin, Christian et al

Poster (2016)

Soil compaction is a complex mechanism which results in a decrease of soil porosity and an increase of soil strength. Such effects may reduce crop yield since they are harmful for root growth, germination ... [more ▼]

Soil compaction is a complex mechanism which results in a decrease of soil porosity and an increase of soil strength. Such effects may reduce crop yield since they are harmful for root growth, germination, mesofauna and bacterial life. Soil compaction may also reduce hydraulic conductivity which increases the risk of runoff, contamination of surface water, erosion and emission of greenhouse gases due to anaerobic processes. In the context of sustainable agriculture, it is crucial to characterise the impact of the agricultural techniques on the compaction state in the arable layer due to machine traffic. For this purpose, Soil samples were taken in a Luvisol at different depths, on plots under longterm reduced tillage (RT) and conventional tillage (CT). The impact of wheel traffic on the physical properties of the soils was also studied. The experimental approach consists in measuring traditional macroscopic soil properties such as bulk density and precompression stress, and combining them with pore size distribution obtained by mercury intrusion porosimetry. Automatic cone index measurements were initially performed to map the soil resistance and easily identify the sampling depths. The measurements revealed a plough pan at 30-cm depth under both CT and RT. Nevertheless, the subsoil under RT showed pieces of evidence of a natural regeneration process of the microporosity. The impact of wheel traffic was studied in RT and CT plots. It was shown that the passage of heavy machine such as beet harvester coupled to water content close to the optimum proctor is clearly unfavourable in terms of compaction. The measurements revealed large modifications of soil structure in the topsoil of CT, whereas the soil structure slightly changes through depth. However, the latter remains the more problematic case since the soil will not be loosened by tillage anymore, resulting in strongly compacted soil years after years. In addition to the experimental approach, numerical modelling was used in order to predict the soil compaction. A finite element method was used and the soil behaviour was modelled by an elastoplastic law (modified Cam-Clay model). The model parameters were calibrated from the experimental measurements. The simulations allowed to compare the porosity and the surface deformation after wheel traffic with the experiments. The variations of machine weight and tyre pressure were numerically studied and it was showed that the machine weight has an influence in the topsoil and the subsoil, whereas the tyre pressure affects only the topsoil. [less ▲]

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See detail: « Les aventures de Leo Frobenius au Congo » : l’histoire d’une expédition ethnographique et de ses suites judiciaires, à la lumière des archives coloniales
Braillon, Charlotte ULg

in Leo Frobenius : histoire croisée de la constitution et de l'approche d'un savoir ethnologique en France et en Allemagne. Actes du colloque des 19 -20 février 2014 à la Goethe-Universität (2016)

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