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See detailInvestigating the tax treatment of owner-occupied housing
Xhignesse, Guillaume ULg

Scientific conference (2015, May 08)

Should I rent or buy? Where do I want to live? And how tax policy affects my choices.

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See detailSpray-drying synthesis of Na3V2(PO4)2F3 as cathode material for Li/Na ion batteries
Eshraghi, Nicolas ULg; Caes, Sébastien ULg; Cloots, Rudi ULg et al

Poster (2015, May 08)

In this communication, Na3V2(PO4)2F3 (NVPF) powder with a NASICON-type structure is synthesized for the first time by spray-drying method. The effects of molar ratio of precursors, inlet temperature and ... [more ▼]

In this communication, Na3V2(PO4)2F3 (NVPF) powder with a NASICON-type structure is synthesized for the first time by spray-drying method. The effects of molar ratio of precursors, inlet temperature and heat treatment temperature on the powder purity and particle morphology were investigated. Structural and microstructural characterizations were carried out by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Best electrochemical properties, from specific capacities of 94 mAh .g-1 at C/15 to 80 mAh.g-1 at 1C in li-ion batteries, were obtained for powders dried at 180°C and fired at 600°C. These preliminary results show that spray-drying technique is suitable for obtaining complex powders with a very good homogeneity leading to very good electrochemical properties. [less ▲]

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See detailWet method for the production of thin films (1)
Liquet, Dimitri ULg; Calberg, Cédric ULg; Eskenazi, David et al

Patent (2015)

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See detailWet method for the production of thin films (2)
Liquet, Dimitri ULg; Calberg, Cédric ULg; Eskenazi, David et al

Patent (2015)

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See detailLe confesseur du Prince dans les Pays-Bas espagnols (1598-1659): une fonction, des individus.
Pirlet, Pierre-François ULg

Doctoral thesis (2015)

Cette thèse envisage, à la cour de Bruxelles (1598-1659), les rapports entre les pouvoirs séculiers et religieux au travers de la figure nodale du confesseur du Prince.

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See detailCow-Side test: What is useful and cost-effective in cattle practice?
Guyot, Hugues ULg

in ANEMBE (Ed.) XX Congreso International ANEMBE de Medicina Bovina: 20 encuentros en la evolucion de la medicina bovina (2015, May 07)

On-farm ancillary exams have been considered as needless in cattle practice. For a long time most of these exams could only be performed by laboratories. Only few analyses could be done on the field, but ... [more ▼]

On-farm ancillary exams have been considered as needless in cattle practice. For a long time most of these exams could only be performed by laboratories. Only few analyses could be done on the field, but with inaccurate, slow or expensive results. Nowadays, new devices appeared on the market, with greater accuracy for lower prices. The goal of these tests is not only to provide a better diagnosis, but also to improve communication with the owner, and also to give a quick therapeutic answer or a prognosis. The ancillary exams have to be profitable for both the owner and the practitioner. It can be done at an individual or herd level to demonstrate the subclinical diseases. The benefits of field-tests are essentially saving time, and for some assays, saving money as well, with relatively accurate analyses. In order to adapt to the situation, it is advised to know the sensitivity and specificity of the tests before doing the analysis. In some cases it is necessary to have a better sensitivity or specificity to adapt to goals: avoiding false-positive or false-negative results. A good specificity of a test is required while looking for a diagnosis, as for a screening approach, a good sensitivity is preferred. Anyway, the use of field tests must be thought carefully and realised only after complete clinical examination of the patient. As it is previously mentioned, the ancillary exams are an important communication tool with the client, and a starting point to a dialogue to convince him to the implementation of appropriate corrective measures in the herd. Here are only presented the different field tests that can be done within 15 minutes, beside the animals, in the barn. Tests are explained in the well-known order (as a disease will act): inflammatory, metabolic, immunological response and the potential presence of the infectious agent. [less ▲]

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See detailLa construction du mouvement "Acteurs des temps présents"
Theunissen, Fanny ULg

Conference (2015, May 07)

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See detailArtificial Intelligence in Video Games: Towards a Unified Framework
Safadi, Firas ULg

Doctoral thesis (2015)

The work presented in this dissertation revolves around the problem of designing artificial intelligence (AI) for video games. This problem becomes increasingly challenging as video games grow in ... [more ▼]

The work presented in this dissertation revolves around the problem of designing artificial intelligence (AI) for video games. This problem becomes increasingly challenging as video games grow in complexity. With modern video games frequently featuring sophisticated and realistic environments, the need for smart and comprehensive agents that understand the various aspects of these environments is pressing. Although machine learning techniques are being successfully applied in a multitude of domains to solve AI problems, they are not yet ready to enable the creation of fully autonomous agent that can reliably learn to understand the environments found in complex video games. Since video game AI is often specifically designed for each game, video game AI tools currently focus on allowing video game developers to quickly and efficiently create specific AI. One issue with this approach is that it does not efficiently exploit the numerous similarities that exist between video games not only of the same genre, but of different genres too, resulting in a difficulty to handle the many aspects of a complex and realistic environment independently for each video game. These similarities, however, exist on a conceptual level. While video games do indeed share a variety of concepts, their interpretations vary from one game to another. Hence, these similarities can only be directly exploited at a conceptual level. Inspired by the human ability to detect analogies between games and apply similar behavior on a conceptual level, this thesis suggests an approach based on the use of a unified conceptual framework to enable the development of conceptual AI which relies on conceptual views and actions to define basic yet reasonable and robust behavior. Because conceptual AI is not tied to any game in particular, it benefits from a continuous development process as opposed to a development that is confined to the scope of a single game project. [less ▲]

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See detailArmée européenne : quelle phase transitoire ?
Dumoulin, André ULg

in Europe Diplomatie & Défense (2015), (792), 3

Page Idées sur la nécessité de créer les conditions d'une Union européenne de sécurité et de défense (UESD) à partir de quelques Etats membres de l'UE

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See detailFast Userspace Packet Processing
Barbette, Tom ULg; Soldani, Cyril ULg; Mathy, Laurent ULg

in Proceedings of ANCS 2015 (2015, May 07)

In recent years, we have witnessed the emergence of high speed packet I/O frameworks, bringing unprecedented network performance to userspace. Using the Click modular router, we first review and ... [more ▼]

In recent years, we have witnessed the emergence of high speed packet I/O frameworks, bringing unprecedented network performance to userspace. Using the Click modular router, we first review and quantitatively compare several such packet I/O frameworks, showing their superiority to kernel-based forwarding. We then reconsider the issue of software packet processing, in the context of modern commodity hardware with hardware multi-queues, multi-core processors and non-uniform memory access. Through a combination of existing techniques and improvements of our own, we derive modern general principles for the design of software packet processors. Our implementation of a fast packet processor framework, integrating a faster Click with both Netmap and DPDK, exhibits up-to about 2.3x speed-up compared to other software implementations, when used as an IP router. [less ▲]

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See detailFuture climate and surface mass balance of Svalbard glaciers in an RCP8.5 climate scenario: a study with the regional climate model MAR forced by MIROC5
Lang, Charlotte ULg; Fettweis, Xavier ULg; Erpicum, Michel ULg

in Cryosphere (The) (2015), 9

We simulated the 21st century Svalbard SMB with the regional model MAR (RCP8.5 scenario). Melt is projected to increase gently up to 2050 and then dramatically increase, with a larger increase in the ... [more ▼]

We simulated the 21st century Svalbard SMB with the regional model MAR (RCP8.5 scenario). Melt is projected to increase gently up to 2050 and then dramatically increase, with a larger increase in the south of the archipelago. This difference is due to larger ice albedo decrease in the south causing larger increase of absorbed solar radiation. The ablation area is projected to disappear over the entire Svalbard by 2085. The SMB decrease compared to present is projected to contribute 7mm to SLR. [less ▲]

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See detailChitosan-coated electrospun nanofibers with antibacterial activity
Croisier, Florence ULg; Sibret, Pierre ULg; Dupont-Gillain, Christine C. et al

in Journal of Materials Chemistry B (2015), 3(17), 3508-2517

Charged nanofibers were prepared by electrospinning (ESP) poly(ε-caprolactone) with a copolymer bearing carboxylic acid functions. The presence of these functions allowed exposing some negative charges on ... [more ▼]

Charged nanofibers were prepared by electrospinning (ESP) poly(ε-caprolactone) with a copolymer bearing carboxylic acid functions. The presence of these functions allowed exposing some negative charges on the fiber surface, by dipping the fibers in a phosphate buffer. A layer of chitosan, a polycation in acidic medium, was then deposited on the nanofiber surface, thanks to electrostatic attraction. Fibers were characterized at each step of the process and the influence of the copolymer architecture on chitosan deposition was discussed. The antibacterial activity of the resulting fibers was finally assessed. [less ▲]

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See detail"Bon sens" et restrictions budgétaires
Counet, Maxime ULg

Conference (2015, May 06)

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See detailApplication du séquençage pour l’identification des champignons
SACHELI, Rosalie ULg

Learning material (2015)

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See detailLatin as literary Language in Constantinople ca. 400-700
Rochette, Bruno ULg

Scientific conference (2015, May 06)

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See detailSelf-defining memories and self-concept clarity: A comparative study of depressed patients, bipolar patients and healthy subjects
Wagener, Aurélie ULg; Boulanger, Marie ULg; Blairy, Sylvie ULg

Poster (2015, May 06)

Depressed and bipolar patients suffer from autobiographical memory (AM) deficits. For instance, depressed patients present an overgeneralisation and a mood congruence biases. Indeed, these patients seem ... [more ▼]

Depressed and bipolar patients suffer from autobiographical memory (AM) deficits. For instance, depressed patients present an overgeneralisation and a mood congruence biases. Indeed, these patients seem to have difficulties to recall specific and positive memories. The present study focusses on a particular kind of memories: the self-defining memories (SDMs). SDMs are highly pertinent for self-building: they help to define in the most clearly way our perception of ourselves. Because SDMs have not been studied a lot since yet in these two disorders, our goal is to assess the impact of general AM biases on SDMs. Then, the present study pursues two main aims: 1) To assess SDM’s characteristics, 2) To assess the relationship between SDM and self-concept clarity. To reach our objective, depressed and bipolar patients are compared to healthy subjects. Participants are asked to complete SDMs exercises that are recalling six important events which happened in their life. These SDMs are assessed on four variables: specificity, impact, meaning making, contain. Self-concept clarity and mood are also assessed. Until now, 17 depressed patients, 16 bipolar patients and 18 healthy controls participate in this study. Preliminary results do not highlight difference between our groups on specificity. Marginal effects appear for meaning making with healthy subjects recalling more meaning making events. Results show that depressed patients present a mood congruence. The final results will be presented during the convention, as data-collection is on-going and will end in April. Experimental and clinical implications of our results will be discussed. [less ▲]

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See detailA fungal biofilm reactor based on metal structured packing improves the quality of a Gla::GFP fusion protein produced by Aspergillus oryzae
Zune, Quentin ULg; Delepierre, Anissa ULg; Gofflot, Sebastien et al

in Applied Microbiology and Biotechnology (2015)

Fungal biofilm is known to promote the excretion of secondary metabolites in accordance with solid-state related physiological mechanisms. This work is based on the comparative analysis of classical ... [more ▼]

Fungal biofilm is known to promote the excretion of secondary metabolites in accordance with solid-state related physiological mechanisms. This work is based on the comparative analysis of classical submerged fermentation with a fungal biofilm reactor for the production of a Gla::GFP fusion protein by Aspergillus oryzae. The biofilm reactor comprises a metal structured packing allowing the attachment of the fungal biomass. Since the production of the target protein is under the control of the promoter glaB, specifically induced in solid-state fermentation, the biofilm mode of culture is expected to enhance the global productivity. Although production of the target protein was enhanced by using the biofilm mode of culture, we also found that fusion protein production is also significant when the submerged mode of culture is used. This result is related to high shear stress leading to biomass autolysis and leakage of intracellular fusion protein into the extracellular medium. Moreover, 2D-gel electrophoresis highlights the preservation of fusion protein integrity produced in biofilm conditions. Two fungal biofilm reactor designs were then investigated further, i.e. with full immersion of the packing or with medium recirculation on the packing, and the scale-up potentialities were evaluated. In this context, it has been shown that full immersion of the metal packing in the liquid medium during cultivation allows for a uniform colonization of the packing by the fungal biomass and leads to a better quality of the fusion protein. [less ▲]

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