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See detailSynedrella nodiflora (L.) Gaertn : a review on its phytochemical screening and uses in animal husbandry and medicine
Adjibode, A.G.; Tougan, U.P.; Youssao, A.K.I. et al

in International Journal of Advanced Scientific and Technical Research (2015), 3

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See detailLes attitudes communautaires et le vote
Deschouwer, Kris; De Winter, Lieven; Reuchamps, Min et al

in Deschouwer, Kris; Delwit, Pascal; Hooghe, Marc (Eds.) et al Décrypter l’électeur: Le comportement électoral et les motivations de vote (2015)

Les électeurs en Belgique se sentent-ils Belges, Flamands ou Wallons ? C’est la question principale posée dans le neuvième chapitre écrit par Kris Deschouwer, Lieven de Winter, Min Reuchamps, Dave ... [more ▼]

Les électeurs en Belgique se sentent-ils Belges, Flamands ou Wallons ? C’est la question principale posée dans le neuvième chapitre écrit par Kris Deschouwer, Lieven de Winter, Min Reuchamps, Dave Sinardet et Jérémy Dodeigne. Dans leur conclusion, ils constatent que les identités flamandes et wallonnes sont moins affirmées que l’identité belge, même dans le cas d’une forte polarisation politique autour de la réforme de l’État. En mai 2014, l’enjeu de la réforme de l’État a été – comme par le passé – peu déterminant dans le comportement de vote, même si cela varie d’un électorat de parti à un autre. En Wallonie, cela n’a pas été aussi déterminant, alors qu’en Flandre trois groupes d’électeurs peuvent être discernés. Dans le premier groupe, les partisans d’une plus grande réforme de l’État et d’une plus grande autonomie se retrouvent dans l’électorat de la N-VA et du Vlaams Belang. Dans un groupe plus modéré se retrouvent les électeurs du CD&V, alors que le troisième groupe (le moins favorable à plus de réformes et plus d’autonomie) est constitué des électeurs de l’Open VLD, du sp.a, de Groen et du PvdA. [less ▲]

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See detailBRAIN TRAINS: Intermodal rail freight transport and hinterland connections A SWOT analysis to assess the Belgian rail practice
Troch, Frank; Vanelslander, Thierry; Belboom, Sandra ULg et al

Scientific conference (2015, May)

This paper focuses on transversal research of the role and influences of rail freight transport, as a part of intermodal transport in Belgium. A SWOT analysis of the current situation is conducted ... [more ▼]

This paper focuses on transversal research of the role and influences of rail freight transport, as a part of intermodal transport in Belgium. A SWOT analysis of the current situation is conducted, starting from the actual weak usage of this mode of transport. Five different fields have been identified, impacting the economy and society. Each field indicates critical internal strengths and weaknesses for intermodal rail transportation in Belgium, and identifies possible future developments and setbacks. A Delphi-like approach is used, including a heterogeneous panel of experts, discussing and validating the SWOT results. To prioritize the characteristics, a survey on the different SWOT elements is performed, asking the experts to rate each statement on its influence and likelihood of happening, indicating the level of uncertainty. [less ▲]

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See detailDamage analysis of composite structures: simulation supported by testing
Bruyneel, Michaël ULg

Conference (2015, May)

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See detailRadar remote sensing observations to monitor landslides and prepare inventories for hazard assessment
Schlögel, Romy; Havenith, Hans-Balder ULg; Malet, Jean-Philippe et al

Scientific conference (2015, May)

Abstract: The creation of a landslide inventory encompassing multi-temporal information needs high quality and high-resolution data source as well as a good knowledge of the field. Visual image ... [more ▼]

Abstract: The creation of a landslide inventory encompassing multi-temporal information needs high quality and high-resolution data source as well as a good knowledge of the field. Visual image interpretation and field surveys are the prevailing methods for landslide inventory mapping while remote sensing techniques have become a widely used source of information for measuring the topography and deformation of the Earth surface (e.g. Berardino et al., 2002). Semi-automatic image analysis methods based on remote sensing techniques are proposed but their quality lacks behind the expert mappings (Guzzetti et al., 2012). Advance processing of SAR images have proven their ability for: (1) landslide detection and mapping (Farina et al., 2006; Cascini et al., 2009; Guzzetti et al., 2012), (2) process monitoring (Hilley et al., 2004; Zhao et al., 2012), (3) hazard assessment (e.g. Nikolaeva et al., 2014) and (4) risk management (Bardi et al., 2014). ... [less ▲]

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See detailCerebral FDG uptake changes with supraorbital transcutaneous electrical stimulation for episodic migraine prevention
D'Ostilio, Kevin ULg; Thibaut, Aurore ULg; Laureys, Steven ULg et al

Conference (2015, May)

Background: A recent multicentre RCT has shown that supraorbital transcutaneous stimulation (STS) targeting branches of the ophtalmic nerve with the Cefaly® device is effective as a preventive therapy for ... [more ▼]

Background: A recent multicentre RCT has shown that supraorbital transcutaneous stimulation (STS) targeting branches of the ophtalmic nerve with the Cefaly® device is effective as a preventive therapy for migraine (Schoenen et al., Neurology 2013). However, the mechanisms of action in the central nervous system remain unknown. Here, we conducted voxel-based analyses of [18]FDG-PET to evaluate metabolic changes immediately after the first STS session and after 3 months of treatment in patients with migraine. Methods: Twenty-eight subjects participated in the experiment: 14 patients with episodic migraine (ICHD3 beta criteria) and 14 age-matched controls. Healthy volunteers underwent only one [18]FDG-PET scan whereas patients were scanned at baseline, directly after a first session of STS and after 3 months of daily treatment. Results: Compliant patients showed a significant decrease in the number of attacks (p = 0.03). When compared to controls, patients (n = 14) at baseline were hypometabolic in the fronto-temporal regions (p < 0.001), especially in the orbitofrontal (OFC) and perigenual anterior cingulate cortex. OFC hypometabolism was not correlated with medication intake. In compliant patients, daily STS for 3 months was followed by a normalization of the fronto-temporal hypometabolism (p< 0.001; OFC: pFWE<0.01). Conclusion: Our study suggests that the OFC is hypoactive in episodic migraine. STS with the Cefaly° device is able to normalize this hypoactivity. This indicates that STS exerts its beneficial effect via slow neuromodulatory mechanisms, as also previously shown for percutaneous occipital nerve stimulation in refractory cluster headache (Magis et al., BMC Neurology 2011). [less ▲]

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See detailLife cycle assessment of biobased chemical building blocks made from European waste streams
Groslambert, Sylvie ULg; Léonard, Angélique ULg

Poster (2015, May)

Many drivers exist to persuade EU businesses to embrace the opportunities of the circular economy. However, the challenges faced by companies, particularly among SME’s, in the drive for resource ... [more ▼]

Many drivers exist to persuade EU businesses to embrace the opportunities of the circular economy. However, the challenges faced by companies, particularly among SME’s, in the drive for resource efficiency include access to funding, knowledge and capability, and ability to implement cost-effective technological solutions. It was these factors that inspired the creation of the ReNEW network. ReNEW, ‘Resource innovation Network for European Waste’, is a €5 million project funded by the Interreg IVB North West Europe scheme aiming to increase cooperation between research and business endeavours to create value from waste by optimising novel technologies for extracting materials from waste and their reuse in the supply chain. ReNEW also aims to inform local, national and European policy makers, and to share transnational best practice and improve specific support to meet the innovation needs of the waste sector. Within the frame of this project, several technologies are investigated by partners to improve the valorisation of organic wastes in chemicals such as the production of furfural (C5H4O2 - CAS 98-01-1) by the chemical hydrolysis of contaminated/hazardous woody biomass. [less ▲]

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See detailLIFE CYCLE ASSESSMENT OF ANTHROPIC WATER
Groslambert, Sylvie ULg; Léonard, Angélique ULg

Poster (2015, May)

In its Regional Policy Statement for 2009-2014, the Walloon Government (Belgium) undertakes to make Wallonia a model of good governance. Applying this principle in the field of the environment needs to be ... [more ▼]

In its Regional Policy Statement for 2009-2014, the Walloon Government (Belgium) undertakes to make Wallonia a model of good governance. Applying this principle in the field of the environment needs to be based on a continuous, objective and strict evaluation of the evolution of the state of environmental components (air, water, soil, biodiversity, etc.), the pressures to which they are subjected, the resultant impacts and the measures taken to improve living conditions within our Region. Within this framework, the General Operational Direction of Agriculture, Natural Resources and Environment (DGARNE) realises reports on the state of the environment in Wallonia, in close collaboration with universities and research centres. A chapter is dedicated to the efficient use of water resources, including a life cycle assessment of anthropic water and rain water harvesting. [less ▲]

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See detailMatière organique et dynamique du phosphore dans les systèmes sol-plante
Renneson, Malorie ULg

Conference (2015, May)

Depuis plusieurs années, la problématique du phosphore revient sur le devant de la scène, notamment à cause du rôle qu’il joue sur l’eutrophisation des eaux de surface. C’est aussi et surtout un élément ... [more ▼]

Depuis plusieurs années, la problématique du phosphore revient sur le devant de la scène, notamment à cause du rôle qu’il joue sur l’eutrophisation des eaux de surface. C’est aussi et surtout un élément essentiel pour les cultures dont les ressources minérales sont limitées. Les matières organiques sont donc une ressource en phosphore précieuse qu’il est primordial de valoriser au mieux. Cependant, toutes les matières organiques ne sont pas égales face aux engrais minéraux, que ce soit vis-à-vis de la réponse immédiate ou à plus long terme. Certaines matières organiques présentent des vitesses de libération du phosphore comparables à celles des engrais organiques. Cependant, les effets doivent également être examinés sur la durée afin d’envisager la possibilité d’une augmentation de la fertilisation phosphatée de nos sols à l’aide des matières organiques, dont les effluents d’origine non agricoles. Il est également important de comprendre les formes sous lesquelles le phosphore va se fixer dans le sol. Le phosphore organique peut présenter des teneurs fortement variables en fonction des types de sol et de l’occupation. Il s’agit d’un compartiment à ne pas négliger dans la caractérisation d’un sol. Différentes recherches et expérimentations ont été réalisées au sein du Service sur la caractérisation et la dynamique du phosphore dans les sols, notamment dans l’objectif de mieux gérer les apports organiques dans les sols. Les questions relatives au phosphore sont en effet importantes dans un objectif de gestion durable des matières organiques et des sols. [less ▲]

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See detailStock de matières organiques dans les sols agricoles wallons: état des lieux et tendances
Renneson, Malorie ULg

Conference (2015, May)

Créée en 1994, la base de données de REQUASUD constitue une source d’information importante de l’état des sols en région wallonne. A ce jour, elle est constituée de plus de 420 000 échantillons répartis ... [more ▼]

Créée en 1994, la base de données de REQUASUD constitue une source d’information importante de l’état des sols en région wallonne. A ce jour, elle est constituée de plus de 420 000 échantillons répartis sur l’ensemble du territoire wallon. Ils sont issus des analyses de terre réalisées à la demande des agriculteurs et des particuliers par les laboratoires wallons d’analyse de terre du réseau REQUASUD. Trois synthèses de l’état des sols en région wallonne ont été réalisées à ce jour (périodes 1994-1997, 1998-2002 et 2003-2008). Ces synthèses permettent en premier lieu de réaliser des cartes des teneurs en carbone organique total (COT) par région agricole et par principaux types de sol. Les cartes du statut organique tendent à mettre en évidence des différences importantes entre les régions agricoles. Une relation entre la distribution des taux de COT dans les sols cultivés et le relief est perceptible. Cela permet de confirmer l’existence d’un lien entre les taux de carbone et le climat. Il ne faut cependant pas non plus négliger l’aspect lié à l’intensification des productions agricoles. En outre, des évolutions temporelles peuvent être mises en évidence. La comparaison des moyennes entre 1994 et 2008 a permis de détecter une diminution du COT dans 3 régions agricoles : les régions jurassique (-15,3%), herbagère (-12,9%) et limoneuse (-6,5%). C’est dans cette dernière région que la situation est la plus préoccupante car le taux de COT y est très faible. Une attention toute particulière doit être portée à cette évolution car si la tendance à la baisse continue, cela pourrait devenir problématique. [less ▲]

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See detailEpidemiological aspects and genotypic characterization of strains of Microsporum audouinii isolated in the context of a Belgian National survey on anthropophilic tinea
SACHELI, Rosalie ULg; Dekkers, Charlotte; DARFOUF, Rajae ULg et al

Poster (2015, May)

Objectives The last two years, clinical cases of tinea capitis caused by Microsporum audouinii (M. audouinii), have increased in Belgium. To better understand the emergence of this species in the ... [more ▼]

Objectives The last two years, clinical cases of tinea capitis caused by Microsporum audouinii (M. audouinii), have increased in Belgium. To better understand the emergence of this species in the population, the Belgian National Reference Center (NRC) for dermatophytes launched a national survey in 2013. Epidemiological aspects and genotypic characterization of the strains were included. Methods The study was conducted from March 2013 up to February 2014. All Belgian laboratories were asked to send M. audouinii strains isolated from hair to the NRC with a form to fill in including epidemiological informations. The fungal strains were identified by microscopy or ITS sequencing in case of doubt. The genotypic analysis was performed by the DiversiLab® system (bioMérieux) for DNA fingerprinting and analysis. Epidemiological informations were analyzed with the help of a biostatistician. Results Among the collected isolates, 117 strains have been currently confirmed as M. audouinii. Analysis of the epidemiological characteristics of the infected population shows that the main age category concerns 5-9 year-old children (64%, p< 0,0001) with a sex-ratio M/F of 1.97. Data concerning the geographic origin of the family have been obtained in only 33,6% of the cases. It reveals that strains have been mainly isolated from patients with a Belgian nationality (43,6%) suggesting bias in the data collection. The geographic origin of the remaining group includes several African countries such as Congo (20,61%), Guinea (12,8%) and Burundi (5,12%). The genotypic analysis led to the distinction of 6 genotypic variants of M. audouinii. One of these variants was exclusively recovered from South Belgium (11 strains). The major group was composed of 96 strains, well distributed in different Belgium locations. Two other groups of three strains each were close to the major group but the analysis of the spectral superposition showed some differences between these groups. The two last groups were clearly different from the major group but species identification was confirmed by ITS sequencing. Conclusion The results of the genomic analysis by Diversilab, show that several groups of M. audouinii isolates co-exist in Belgium providing evidence of genetic heterogeneity. However, no clear correlation could be established between the appartenance to a group and epidemiological factors, such as the age or ethnical origin. ________________________________________ [less ▲]

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See detailThe Kambarata 2 blast-fill dam, Kyrgyz Republic: blast event, geophysical monitoring and dam structure modelling
Havenith, Hans-Balder ULg; Torgoev, Isakbek; Torgoev, Almazbek ULg et al

in Geoenvironmental Disasters (2015), 2(1), 1-15

Abstract Background The blast-and earth-fill dam of the Kambarata 2 hydropower station is situated in the seismically active Central Tien Shan region of the Kyrgyz Republic. More than 70% of the dam ... [more ▼]

Abstract Background The blast-and earth-fill dam of the Kambarata 2 hydropower station is situated in the seismically active Central Tien Shan region of the Kyrgyz Republic. More than 70% of the dam volume was produced during a blast event on December 22, 2009. In 2010– 2011, dam construction was completed after earth filling on top of the blasted material and installing concrete and clay screens together with bentonite grouts. A geophysical survey had been completed in 2012–2013, mainly to monitor the resistivities inside the dam. ... [less ▲]

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See detailValid inequalities for the single arc design problem with set-ups
Agra, Agostinho; Doostmohammadi, Mahdi; Louveaux, Quentin ULg

in Discrete Optimization (2015), 16

We consider a mixed integer set which generalizes two well-known sets: the single node fixed- charge network set and the single arc design set. Such set arises as a relaxation of feasible sets of general ... [more ▼]

We consider a mixed integer set which generalizes two well-known sets: the single node fixed- charge network set and the single arc design set. Such set arises as a relaxation of feasible sets of general mixed integer problems such as lot-sizing and network design problems. We derive several families of valid inequalities that, in particular, generalize the arc resid- ual capacity inequalities and the flow cover inequalities. For the constant capacitated case we provide an extended compact formulation and give a partial description of the convex hull in the original space which is exact under a certain condition. By lifting some basic inequalities we provide some insight on the difficulty of obtaining such a full polyhedral description for the constant capacitated case. Preliminary computational results are presented. [less ▲]

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