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See detailCo-creating service recovery after service failure: The role of brand equity
Hazee, Simon ULg; Van Vaerenbergh, Yves; Armirotto, Vincent

Conference (2017, June)

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See detailImpact of an ultra-trail of 330 km on plasma levels
LE GOFF, Caroline ULg; Kaux, Jean-François ULg; Gergelé, Laurent et al

in Clinical Chemistry and laboratory medicine (2017, June)

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See detailROOF STACKING: Learned Lessons from Architects
Amer Mahmoud, Mohamed ULg; Attia, Shady ULg

Report (2017)

Roof Stacking represents an approach to accommodate increasing population in the major cities around Europe, new agendas for urban densification emerge in response of finding sustainable solutions to use ... [more ▼]

Roof Stacking represents an approach to accommodate increasing population in the major cities around Europe, new agendas for urban densification emerge in response of finding sustainable solutions to use existing urban infrastructure in the most efficient ways. Several methods for urban densification are being proposed and seen in real life. One of those methods is roof stacking, which is defined as the added structure over the rooftop of an existing building to create one or more stories of living spaces. This report represents the results of conducted investigation on roof stacking method as a sustainable approach for urban densification. The aim of this report is to present a guideline for roof stacking construction approaches and methods and present the learned lessons through interviewing notable architects from different European countries who applied roof stacking. This report identifies the challenges and opportunities when applying roof stacking in addition to proposing recommended solution for the different obstacles that are faced when adding extensions on the rooftops. [less ▲]

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See detailExperimental design helps to optimize spray drying processes
Dellicour, Aline ULg; Cloots, Rudi ULg; Boschini, Frédéric ULg

Poster (2017, June)

Experimental design is necessary to identify major experimental parameters linked to a process in order to optimize it and reduce costs. It also helps to reduce the number of experiments and analyze data ... [more ▼]

Experimental design is necessary to identify major experimental parameters linked to a process in order to optimize it and reduce costs. It also helps to reduce the number of experiments and analyze data statistically. This work aims to present some possibilities of how experimental design may be applied in the field of pharmaceutical powders production by spray drying. Depending on the application, powders need particular size, morphology, purity, crystallinity or polymorphism. All these characteristics may be influenced by process parameters and should be controlled to reach pharmaceutical requirements. [less ▲]

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See detailDroit, artification et domination : Bourdieu, Duchamp et Pinoncelli
De Brogniez, Maxime ULg

Scientific conference (2017, June)

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See detailThe question of the methane increase though the retrieval of its isotopologues from FTIR ground-based observations
Bader, Whitney ULg; Strong, Kimberley; Walker, Kaley et al

Conference (2017, June)

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See detailQuantification of serum androstanediol glucuronide
LE GOFF, Caroline ULg

in Clinical Chemistry and Laboratory Medicine (2017, June)

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See detailLa nature, une nécessité symbolique et vitale
Lombard, David ULg

Article for general public (2017)

L’environnement est une préoccupation majeure de notre société, pourtant nombreux sont encore les indécis et trop peu nombreux sont ceux qui sont prêts à agir et à changer leurs habitudes pour améliorer ... [more ▼]

L’environnement est une préoccupation majeure de notre société, pourtant nombreux sont encore les indécis et trop peu nombreux sont ceux qui sont prêts à agir et à changer leurs habitudes pour améliorer la situation critique actuelle. Dans le présent article, j’aborderai, en utilisant le modèle nord-américain comme principale référence, l’évolution d’une représentation de la nature. D’abord vue comme nécessaire car symbolisant à la fois un nouveau continent et une nouvelle identité ensuite vue comme consommable, artificielle et enfin vue comme facultative. Afin de pallier cette dernière conception, parfois inconsciente, de la nature comme « accessoire », dont on pourrait se passer, et favoriser un mode de vie et une consommation écologiquement responsables, je terminerai par donner une série de pistes d’action exerçables aux niveaux individuel, collectif et sur les pouvoirs publics. [less ▲]

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See detailGeant4 code for gamma spectrometry measurement: a toolkit for Nuclear, Medical, Astronomical and High Energy Physics
Guembou Shouop, Cébastien Joel ULg; Ndontchueng Moyo, Maurice; Nguelem Mekongtso, Eric J. et al

Scientific conference (2017, June)

In the Monte Carlo method, quantities of interest for the application are calculated through statistical sampling of interaction processes. Gamma spectroscopy is a widely used technique, well-illustrated ... [more ▼]

In the Monte Carlo method, quantities of interest for the application are calculated through statistical sampling of interaction processes. Gamma spectroscopy is a widely used technique, well-illustrated by the following list of examples: Environmental Radioactivity Monitoring, nuclear industry, geochemical investigation, and astrophysics. Most radioactive sources produce gamma rays, which are of various energies and intensities. Geant4 (for GEometry ANd Tracking) is a platform for the simulation of the passage of particles through matter, using Monte Carlo methods. The GEANT4 toolkit allows the simulation of the following physical processes: the photo-electrical effect, the Compton Effect, the electron-positron pairs generation and the Rayleigh diffusion. Our study shows the combination of gamma spectrometry, development of related Monte Carlo equation and the presentation of the Geant4 toolkit for gamma spectrometry simulation (simulation of the interaction of gamma photon through matter). It is clearly found, at the end of this study, that Monte-Carlo simulation is a useful, inexpensive alternative that also provides greater flexibility and gained time when determining the detector response and efficiency during an environmental monitoring. [less ▲]

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See detailVoltage Profile Correction in Distribution Grids Combining Single- and Two-level Controllers
Soleimani Bidgoli, Hamid ULg; Van Cutsem, Thierry ULg

in IEEE PES 2017 PowerTech conference proceedings (2017, June)

A real-time control scheme is proposed to correct undesired voltages in distribution networks by adjusting the reactive powers produced by Dispersed Generation Units (DGUs). This is performed at two ... [more ▼]

A real-time control scheme is proposed to correct undesired voltages in distribution networks by adjusting the reactive powers produced by Dispersed Generation Units (DGUs). This is performed at two levels: locally, in DGU controllers, and centrally by a supervisory controller acting on some of the DGUs only. The centralized, discrete controller solves a multi-time-step constrained optimization inspired of Model Predictive Control. Unacceptable voltage deviations are partially but rapidly corrected by the local controls. Further but slower corrections are applied by the upper level, taking advantage of the coordination between DGUs. This hybrid control is of practical interest where the deployment of the upper level control is not feasible or affordable over all DGUs. The proposed method effectiveness is demonstrated on a 75-bus test system. [less ▲]

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See detailGreen mamba peptide targets type-2 vasopressin receptor against polycystic kidney disease
Ciolek, Justyna; Reinfrank, Helen; Quinton, Loïc ULg et al

in Proceedings of the National Academy of Sciences of the United States of America (2017)

Polycystic kidney diseases (PKDs) are genetic disorders that can cause renal failure and death in children and adults. Lowering cAMP in cystic tissues through the inhibition of the type-2 vasopressin ... [more ▼]

Polycystic kidney diseases (PKDs) are genetic disorders that can cause renal failure and death in children and adults. Lowering cAMP in cystic tissues through the inhibition of the type-2 vasopressin receptor (V2R) constitutes a validated strategy to reduce disease progression. We identified a peptide from green mamba venom that exhibits nanomolar affinity for the V2R without any activity on 155 other G-protein–coupled receptors or on 15 ionic channels. Mambaquaretin-1 is a full antagonist of the V2R activation pathways studied: cAMP production, beta-arrestin interaction, and MAP kinase activity. This peptide adopts the Kunitz fold known to mostly act on potassium channels and serine proteases. Mambaquaretin-1 interacts selectively with the V2R through its first loop, in the same manner that aprotinin inhibits trypsin. Injected in mice, mambaquaretin-1 increases in a dose-dependent manner urine outflow with concomitant reduction of urine osmolality, indicating a purely aquaretic effect associated with the in vivo blockade of V2R. CD1-pcy/pcy mice, a juvenile model of PKD, daily treated with 13 μ𝝁g of mambaquaretin-1 for 99 d, developed less abundant (by 33%) and smaller (by 47%) cysts than control mice. Neither tachyphylaxis nor apparent toxicity has been noted. Mambaquaretin-1 represents a promising therapeutic agent against PKDs. [less ▲]

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See detailSartre, hériter de Heidegger ? Quelques remarques à propos du circuit de l'ipséité dans "L'Être et le Néant" [titre provisoire]
Recchia, Fabio ULg

in Revista Ética e Filosofia Política (2017), 1

Il n’est en philosophie d’héritage que gagné. Et en m’installant dans cette ambigüité propre au savoir philosophique, j’examine, dans ce texte, un développement peu étudié de la pensée sartrienne : sa ... [more ▼]

Il n’est en philosophie d’héritage que gagné. Et en m’installant dans cette ambigüité propre au savoir philosophique, j’examine, dans ce texte, un développement peu étudié de la pensée sartrienne : sa théorie du « circuit de l’ipséité » de la conscience. Quant à mon objectif, il s’agira de faire le point sur le processus de maturation intellectuelle à l’issue duquel Sartre conçut l’ipséité comme un circuit. Ainsi je mets en évidence que certaines des réflexions de Heidegger, Bergson et Mauss, sur la notion d’identité personnelle ont constitué les héritages philosophiques mobilisés et transformés par la théorie sartrienne de l’ipséité. [less ▲]

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See detailTawada Yoko, "Histoire de Knut": proposition de lecture d'été
Goto, Kanako ULg

Article for general public (2017)

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See detailBalanced sequences of complexity 2n+1
Cassaigne, Julien; Labbé, Sébastien; Leroy, Julien ULg

E-print/Working paper (2017)

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See detailMindfulness in Cyber-Security: The Case of a Government Agency
Tapanainen, Tommi ULg; Lisein, Olivier ULg

Conference (2017, June)

Cyber-security requires not only technical preparations but also organizational practices that reduce the likelihood and severity of damage to the organization. Although user compliance to security ... [more ▼]

Cyber-security requires not only technical preparations but also organizational practices that reduce the likelihood and severity of damage to the organization. Although user compliance to security policies has been examined in prior literature, user behaviour is only one facet of an organization’s cyber-security; the actions of the IT staff, crisis team, and the management are just as critical. Consequently, organizational practices in cyber-security are not understood very well. To address this gap, this research applied the concept of mindfulness, which has recently received attention also in the IT field. We collected data from a revelatory case – that of a government agency that was targeted by a large-scale cyber-attack – and applied the concept of mindfulness in analyzing the data. Our analysis uncovered a number of mindful practices related to cyber-security. These practices can serve as a building block to theorize on the activities to be taken by IT workers in promoting cyber-security. Our paper also suggests avenues for further research in the emerging topic, for instance, through the concept of cyber-security capability. [less ▲]

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See detailUntargeted serum metabolite profiling of colorectal cancer using GC-Orbitrap technology
Di Giovanni, Nicolas ULg; Cojocariu, C; Silcock, P et al

Poster (2017, June)

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See detailLocal Control of AC/DC Converters for Frequency Support Between Asynchronous AC Areas
Papangelis, Lampros ULg; Debry, Marie-Sophie; Panciatici, Patrick et al

in IEEE PES 2017 PowerTech conference proceedings (2017, June)

This paper proposes a novel control scheme for frequency support among asynchronous AC areas through HVDC grids. It is based on local controllers, each acting on a voltage source converter, using locally ... [more ▼]

This paper proposes a novel control scheme for frequency support among asynchronous AC areas through HVDC grids. It is based on local controllers, each acting on a voltage source converter, using locally available measurements only, and supporting frequency of the adjacent AC area after a significant disturbance. The controller is combined with the existing DC voltage droop technique and is inspired of Model Predictive Control, taking into account various constraints. The coordination of the proposed control scheme with the existing secondary frequency control of an AC area is also discussed. Examples obtained from a test system with a five-terminal DC network connecting two asynchronous areas demonstrate the effectiveness of the proposed control scheme. [less ▲]

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