References of "Already available on another site"      in Complete repository Arts & humanities   Archaeology   Art & art history   Classical & oriental studies   History   Languages & linguistics   Literature   Performing arts   Philosophy & ethics   Religion & theology   Multidisciplinary, general & others Business & economic sciences   Accounting & auditing   Production, distribution & supply chain management   Finance   General management & organizational theory   Human resources management   Management information systems   Marketing   Strategy & innovation   Quantitative methods in economics & management   General economics & history of economic thought   International economics   Macroeconomics & monetary economics   Microeconomics   Economic systems & public economics   Social economics   Special economic topics (health, labor, transportation…)   Multidisciplinary, general & others Engineering, computing & technology   Aerospace & aeronautics engineering   Architecture   Chemical engineering   Civil engineering   Computer science   Electrical & electronics engineering   Energy   Geological, petroleum & mining engineering   Materials science & engineering   Mechanical engineering   Multidisciplinary, general & others Human health sciences   Alternative medicine   Anesthesia & intensive care   Cardiovascular & respiratory systems   Dentistry & oral medicine   Dermatology   Endocrinology, metabolism & nutrition   Forensic medicine   Gastroenterology & hepatology   General & internal medicine   Geriatrics   Hematology   Immunology & infectious disease   Laboratory medicine & medical technology   Neurology   Oncology   Ophthalmology   Orthopedics, rehabilitation & sports medicine   Otolaryngology   Pediatrics   Pharmacy, pharmacology & toxicology   Psychiatry   Public health, health care sciences & services   Radiology, nuclear medicine & imaging   Reproductive medicine (gynecology, andrology, obstetrics)   Rheumatology   Surgery   Urology & nephrology   Multidisciplinary, general & others Law, criminology & political science   Civil law   Criminal law & procedure   Criminology   Economic & commercial law   European & international law   Judicial law   Metalaw, Roman law, history of law & comparative law   Political science, public administration & international relations   Public law   Social law   Tax law   Multidisciplinary, general & others Life sciences   Agriculture & agronomy   Anatomy (cytology, histology, embryology...) & physiology   Animal production & animal husbandry   Aquatic sciences & oceanology   Biochemistry, biophysics & molecular biology   Biotechnology   Entomology & pest control   Environmental sciences & ecology   Food science   Genetics & genetic processes   Microbiology   Phytobiology (plant sciences, forestry, mycology...)   Veterinary medicine & animal health   Zoology   Multidisciplinary, general & others Physical, chemical, mathematical & earth Sciences   Chemistry   Earth sciences & physical geography   Mathematics   Physics   Space science, astronomy & astrophysics   Multidisciplinary, general & others Social & behavioral sciences, psychology   Animal psychology, ethology & psychobiology   Anthropology   Communication & mass media   Education & instruction   Human geography & demography   Library & information sciences   Neurosciences & behavior   Regional & inter-regional studies   Social work & social policy   Sociology & social sciences   Social, industrial & organizational psychology   Theoretical & cognitive psychology   Treatment & clinical psychology   Multidisciplinary, general & others     Showing results 1 to 100 of 546 1 2 3 4 5 6     L'environnement comme source d'inégalité? Pauvreté et désengagement citoyen dans la villeLejeune, Zoé E-print/Working paper (in press)Detailed reference viewed: 39 (18 ULg) Many-Body Spin EchoEngl, Thomas; Urbina, Juan Diego; Richter, Klaus et alE-print/Working paper (2016)We predict a universal echo phenomenon present in the time evolution of many-body states of interacting quantum systems described by Fermi-Hubbard models. It consists of the coherent revival of transition ... [more ▼]We predict a universal echo phenomenon present in the time evolution of many-body states of interacting quantum systems described by Fermi-Hubbard models. It consists of the coherent revival of transition probabilities echoing a sudden flip of the spins that, contrary to its single-particle (Hahn) version, is not dephased by interactions or spin-orbit coupling. The many-body spin echo signal has a universal shape independent of the interaction strength, and an amplitude and sign depending only on combinatorial relations between the number of particles and the number of applied spin flips. Our analytical predictions, based on semiclassical interfering amplitudes in Fock space associated with chaotic mean-field solutions, are tested against extensive numerical simulations confirming that the coherent origin of the echo lies in the existence of anti-unitary symmetries. [less ▲]Detailed reference viewed: 5 (1 ULg) Waveguides for walking dropletsFiloux, Boris ; Hubert, Maxime ; Schlagheck, Peter et alE-print/Working paper (2016)When gently placing a droplet onto a vertically vibrated bath, a drop can bounce without coalescing. Upon increasing the forcing acceleration, the droplet is propelled by the wave it generates and becomes ... [more ▼]When gently placing a droplet onto a vertically vibrated bath, a drop can bounce without coalescing. Upon increasing the forcing acceleration, the droplet is propelled by the wave it generates and becomes a walker with a well defined speed. We investigate the confinement of a walker in different rectangular cavities, used as waveguides for the Faraday waves emitted by successive droplet bounces. By studying the walker velocities, we discover that 1d confinement is optimal for narrow channels of width of D≃1.5λF. We also propose an analogy with waveguide models based on the observation of the Faraday instability within the channels. [less ▲]Detailed reference viewed: 7 (1 ULg) Lars Gustafsson, Strindberg et l'ordinateur [critique]Dupont, Bruno E-print/Working paper (2016)Detailed reference viewed: 21 (0 ULg) Stein's method, many interacting worlds and quantum mechanicsMcKeague, Ian; Peköz, Erol; Swan, Yvik E-print/Working paper (2016)Detailed reference viewed: 14 (0 ULg) Scattering theory of walking droplets in the presence of obstaclesDubertrand, Rémy ; Hubert, Maxime ; Schlagheck, Peter et alE-print/Working paper (2016)We aim to describe a droplet bouncing on a vibrating bath. Due to Faraday instability a surface wave is created at each bounce and serves as a pilot wave of the droplet. This leads to so called walking ... [more ▼]We aim to describe a droplet bouncing on a vibrating bath. Due to Faraday instability a surface wave is created at each bounce and serves as a pilot wave of the droplet. This leads to so called walking droplets or walkers. Since the seminal experiment by {\it Couder et al} [Phys. Rev. Lett. {\bf 97}, 154101 (2006)] there have been many attempts to accurately reproduce the experimental results. Here we present a simple and highly versatile model inspired from quantum mechanics. We propose to describe the trajectories of a walker using a Green function approach. The Green function is related to Helmholtz equation with Neumann boundary conditions on the obstacle(s) and outgoing conditions at infinity. For a single slit geometry our model is exactly solvable and reproduces some general features observed experimentally. It stands for a promising candidate to account for the presence of any boundaries in the walkers'dynamics. [less ▲]Detailed reference viewed: 12 (1 ULg) Distances between probability distributions via characteristic functions and biasingAzmoodeh, Ehsan; Arras, Benjamin; Poly, Guillaume et alE-print/Working paper (2016)Detailed reference viewed: 22 (0 ULg) Stein operators for product distributions, with applicationsMijoule, Guillaume; Gaunt, Robert; Swan, Yvik E-print/Working paper (2016)Detailed reference viewed: 14 (0 ULg) Stein's method on the second Wiener chaos : 2-Wasserstein distanceArras, Benjamin; Mijoule, Guillaume; Poly, Guillaume et alE-print/Working paper (2016)Detailed reference viewed: 14 (0 ULg) Public Education Expenditures, Growth and Income InequalityArtige, Lionel ; Cavenaile, LaurentE-print/Working paper (2016)Detailed reference viewed: 41 (2 ULg) Le législateur wallon sommé de revoir le découpage des circonscriptions électoralesBouhon, Frédéric E-print/Working paper (2016)Le caractère proportionnel de notre système électoral n’est pas un vain mot et ne peut être contourné. C’est ce que viennent de rappeler deux arrêts, le premier, prononcé par le Conseil d’État, datant du ... [more ▼]Le caractère proportionnel de notre système électoral n’est pas un vain mot et ne peut être contourné. C’est ce que viennent de rappeler deux arrêts, le premier, prononcé par le Conseil d’État, datant du 20 novembre 2014 (n° 229.252) , le second, rendu par la Cour constitutionnelle le 26 novembre 2015 (n° 169/2015) . Le Parlement wallon doit revoir la carte électorale en vue des prochaines élections. [less ▲]Detailed reference viewed: 18 (4 ULg) Core Content Classification in General Practice Family medicine (3CGP) The Q-Codes user guideJamoulle, Marc E-print/Working paper (2016)user guide and general explanation pages for the Q-codes, a classification of managerial issues in General Practice / Family MedicineDetailed reference viewed: 31 (1 ULg) L’aménagement forestier au Congo engendre-t-il plus de déforestation ?Karsenty, Alain; Cerutti, P.; Doucet, Jean-Louis et alE-print/Working paper (2016)Un article publié dans Land Use Policy début 2016 arrive à la conclusion a priori étonnante que la déforestation serait, au Congo, plus élevée dans les concessions forestières avec des plans d’aménagement ... [more ▼]Un article publié dans Land Use Policy début 2016 arrive à la conclusion a priori étonnante que la déforestation serait, au Congo, plus élevée dans les concessions forestières avec des plans d’aménagement que dans celles qui n’en ont pas. L’analyse d’évaluation d’impact qui a conduit ces chercheurs à un tel résultat se base sur un appariement de parcelles sélectionnées aléatoirement dans des concessions avec et sans plans d’aménagement. Ces chercheurs indiquent que le réseau de routes forestières plus développé dans les concessions aménagées serait un des facteurs explicatifs. L’autre facteur serait le développement local lié aux cahiers des charges des plans d’aménagement, lequel conduirait à une augmentation de la population dans ces concessions et à une déforestation accrue. Notre groupe d’une vingtaine de chercheurs connaissant bien la problématique de l’aménagement forestier en Afrique centrale s’est penché à son tour sur cette question et a analysé la déforestation au niveau des concessions sur le même intervalle de temps. Nos résultats montrent, cette fois, que la déforestation est moins importante dans les concessions avec un plan d’aménagement que dans les autres. Et si l’on compare à production égale la déforestation dans des concessions avec et sans plan d’aménagement, il apparaît que les UFA aménagées sont environ deux fois plus « efficaces », c’est-à-dire qu’on observe deux fois moins de perte de couvert forestier par mètre-cube produit. Nous en concluons qu’il est nécessaire d’analyser précisément la dynamique des différents facteurs de déforestation, et éviter d’imputer mécaniquement à l’aménagement forestier un rôle excessif dans l’évolution dans un sens ou dans l’autre du taux de déboisement. Enfin, toute évaluation doit rappeler que les effets de l’aménagement forestier doivent être mesurés sur le long terme : l’objectif de l’aménagement est de permettre une mise en valeur forestière durable, en conservant l’essentiel du capital productif pour éviter, autant que possible, la conversion à d’autres usages après les cycles de coupe initiaux. [less ▲]Detailed reference viewed: 67 (2 ULg) Five years on for Fukushima's IDPs: Life with radiological risk and without a community safety netHasegawa, Reiko E-print/Working paper (2016)On the fifth anniversary of the Fukushima nuclear accident, the article analyses what are at stake in the communities affected by the disaster, based on the result of the field interviews conducted in ... [more ▼]On the fifth anniversary of the Fukushima nuclear accident, the article analyses what are at stake in the communities affected by the disaster, based on the result of the field interviews conducted in Fukushima. [less ▲]Detailed reference viewed: 17 (0 ULg) Southern Blues Night , Heerlen (Hollande) 19 mars 2016Sacré, Robert E-print/Working paper (2016)Compte rendu de la Southern Blues Night annuelle de Heerlen aux Pays Bas, avec photosDetailed reference viewed: 17 (0 ULg) Note on the numerical solution of the scalar Helmholtz equation in a nanotorus with uniform Dirichlet boundary conditionsNguyen, Ngoc Duy ; Evrard, Roger ; Stroscio, MichaelE-print/Working paper (2016)This note describes the solution of the Helmholtz equation inside a nanotorus with uniform Dirichlet boundary conditions. The eigenfunction symmetry is discussed and the lower-order eigenvalues and ... [more ▼]This note describes the solution of the Helmholtz equation inside a nanotorus with uniform Dirichlet boundary conditions. The eigenfunction symmetry is discussed and the lower-order eigenvalues and eigenfunctions are shown. The similarity with the case of a long cylinder and with that of the vibrations of a circular elastic membrane is discussed. This similarity is used to propose a classification scheme of the eigenfunctions based on three indices. [less ▲]Detailed reference viewed: 33 (4 ULg) La diversité des expressions culturelles au tourbillon du numériqueVlassis, Antonios E-print/Working paper (2016)Detailed reference viewed: 29 (2 ULg) Without Rain or Land, Where Will Our People Go? Climate Change, Land Grabbing and Human Mobility. Insights from Senegal and CambodiaVigil Diaz Telenti, Sara E-print/Working paper (2016)Detailed reference viewed: 43 (10 ULg) Continuous Departure Time of Day Preferences for Continental U.S. Airline Markets Segmented by Distance, Direction of Travel, Number of Time Zones, Day of Week and Itinerary TypeLurkin, Virginie ; Garrow, Laurie; Higgins, Matthew et alE-print/Working paper (2016)Airlines use itinerary choice models to allocate the total number of passengers in a city pair to specific itineraries. In a related paper, we estimated a multinomial logit (MNL) itinerary choice model ... [more ▼]Airlines use itinerary choice models to allocate the total number of passengers in a city pair to specific itineraries. In a related paper, we estimated a multinomial logit (MNL) itinerary choice model using database of more than 3 million tickets for Continental U.S. markets provided by the Airlines Reporting Corporation that accounted for price endogeneity. The size and comprehensiveness of our database allowed us to estimate highly refined continuous departure time of day preference curves that account for distance, direction of travel, the number of time zones traversed, departure day of week and itinerary type (outbound, inbound or one-way). This paper and accompanying Excel spreadsheet located at http://garrowlab.ce.gatech.edu contain the results of all model coefficients (including the 1260 time of day parameters) and summarize results in a series of ten figures. These highly-refined time of day preference curves can be used by airlines, researchers, and government organizations in the evaluation of demand-management and other policies. [less ▲]Detailed reference viewed: 41 (4 ULg) Politique de la Ville : Dynamisation des coeurs de villeBastin, Florine ; Lacroix, Gilles; May, Xavier et alE-print/Working paper (2016)La régionalisation de la Politique Fédérale des Grandes Villes, suite à la sixième réforme de l’Etat, fut une opportunité de s’interroger sur les objectifs et l’organisation d’une Politique de la Ville en ... [more ▼]La régionalisation de la Politique Fédérale des Grandes Villes, suite à la sixième réforme de l’Etat, fut une opportunité de s’interroger sur les objectifs et l’organisation d’une Politique de la Ville en Wallonie. Dans ce cadre, la note de recherche CPDT n°63 « Politique de la ville. Dynamisation des cœurs de ville » répond à la volonté du Gouvernement wallon de se doter d’une vision territoriale stratégique sur le long terme et est un premier pas vers la mise en place d’une politique de la ville intégrée en Wallonie. Cette note fait le point sur, d’une part, les différentes politiques et outils relatifs à la restructuration et à la dynamisation des tissus urbains, au sens large, établis au niveau régional, fédéral et européen et, d’autre part, les propositions et recommandations relatives à l’évolution du cadre actuel. Cette réflexion s’adresse évidemment aux acteurs concernés par les enjeux de gouvernance urbaine : les décideurs politiques, les villes et les communes mais concerne aussi le citoyen. [less ▲]Detailed reference viewed: 61 (7 ULg) Fertility progression in Germany: An analysis using flexible nonparametric cure survival modelsBremhorst, Vincent; Kreyenfeld, Michaela; Lambert, Philippe E-print/Working paper (2016)- Objective - This paper uses data from the German Socio-Economic Panel (GSOEP) to study the transition to second and third births. In particular, we seek to distinguish the factors that determine the ... [more ▼]- Objective - This paper uses data from the German Socio-Economic Panel (GSOEP) to study the transition to second and third births. In particular, we seek to distinguish the factors that determine the timing of fertility from the factors that influence ultimate parity progression. - Methods - As a method, we employ cure survival models, a technique that is commonly used in epidemiological studies and in the statistical literature, but is only rarely applied to fertility research. - Results - We find that education has a different impact on the timing and the ultimate probability of having a second and a third birth. Furthermore, we show that the shape of the fertility schedule for the total population differs from that of “susceptible women” (i.e., those who have a second or a third child). - Conclusion - Standard event history models conflate timing and quantum effects. Our approach overcomes this shortcoming. It estimates separate parameters for the hazard rate of having a next child for the “susceptible population,” and the ultimate probability of having another child for the entire population at risk. - Contribution - We go beyond standard cure survival models (also known as split population models) used in fertility research by specifying a flexible non-parametric model (using Bayesian P-splines) for the latent distribution (related to the timing of an extra birth), instead of a parametric model. Our approach is (so far) limited to time-constant covariates, but can be extended to include time-varying covariates as well. [less ▲]Detailed reference viewed: 48 (4 ULg) Histoires de rayons verts : phénomène physique, critique de cinéma, spectateurs mélancoliquesBarbion, Sébastien E-print/Working paper (2016)En s’appuyant sur la physique, un roman de Jules Verne et un film de Rohmer, ce texte déplie les différents aspects théoriques et pratiques contenus dans le concept de rayon vert : un type de perception ... [more ▼]En s’appuyant sur la physique, un roman de Jules Verne et un film de Rohmer, ce texte déplie les différents aspects théoriques et pratiques contenus dans le concept de rayon vert : un type de perception, une manière de concevoir la critique de cinéma, une expérience de spectateur. [less ▲]Detailed reference viewed: 20 (2 ULg) Stein's method for comparison of univariate distributionsSwan, Yvik ; Reinert, Gesine; Ley, ChristopheE-print/Working paper (2016)Detailed reference viewed: 53 (1 ULg) Old‐Age Employment and Hours of Work Trends: Empirical Analysis for Four European CountriesJousten, Alain ; Perelman, Sergio ; Flawinne, Xavier et alE-print/Working paper (2016)For the last two decades, the increase of employment among cohorts of individuals aged 50+ has been a policy objective on the European employment agenda. The present paper takes stock of the situation as ... [more ▼]For the last two decades, the increase of employment among cohorts of individuals aged 50+ has been a policy objective on the European employment agenda. The present paper takes stock of the situation as observed in Belgium over the time period 1997-2011. First, we provide analysis on the evolution of older workers’ employment in Belgium and its neighboring countries Germany, France and the Netherlands using the EU Labour Force Survey. Second, we characterize the different employment and hours of work patterns for different age sub‐groups (50‐54, 55‐59, 60‐64) and provide evidence on their respective evolution. The results show that employment rates among older workers started to catch‐up with employment rates of younger cohorts as of 2001, and with more acuity after 2006. This effect dominates the observed negative effect on hours of work and hence leads to an increase in total hours of work of the cohort – net of any purely demographic effects. [less ▲]Detailed reference viewed: 23 (3 ULg) A stroll along the gammaArras, Benjamin ; Swan, Yvik E-print/Working paper (2016)Detailed reference viewed: 51 (10 ULg) Fundamentals for an International Typology of Social Enterprise ModelsDefourny, Jacques ; Nyssens, MartheE-print/Working paper (2016)Detailed reference viewed: 29 (2 ULg) Nonlinear dynamical tunneling of optical whispering gallery modes in the presence of a Kerr nonlinearityShim, Jeong -Bo ; Schlagheck, Peter ; Hentschel, Martina et alE-print/Working paper (2015)Detailed reference viewed: 7 (0 ULg) Identification of the concepts at stake during a consultation. Clinical exercisesJamoulle, Marc E-print/Working paper (2015)During a consultation between a patient and a doctor, symptoms, process and health problems are at stake and could be identified and retrieved through the use of ICPC.(refer to www.ph3c.org) Specific ... [more ▼]During a consultation between a patient and a doctor, symptoms, process and health problems are at stake and could be identified and retrieved through the use of ICPC.(refer to www.ph3c.org) Specific training and managerial competences of the doctor could be identified and explained through the Q-Codes Together ICPC and Q-Codes form 3CGP ; Core Content Classification in General Practice/ Family Medicine The concepts identified in ICPC and Q-Codes could be useful to understand and teach the content of consultation in family medicine. [less ▲]Detailed reference viewed: 34 (7 ULg) Festivals Acadiens et CreolesSacré, Robert E-print/Working paper (2015)Comptes-rendus avec photos et liens Internet : 1) Houston et Galveston ( TX) 2) Festivals Acadiens et Créoles à Lafayette ( LA) jours 1 , 2 et 3 3) Lafayette by nightDetailed reference viewed: 22 (0 ULg) From 'Risk Communication' to Participatory Radiation Risk AssessmentShirabe, Masashi; Fassert, Christine; Hasegawa, Reiko E-print/Working paper (2015)In the aftermath of the Fukushima nuclear accident, many of the post¿disaster responses undertaken by the Japanese government sparked vivid debates and criticisms from the civil society. The article ... [more ▼]In the aftermath of the Fukushima nuclear accident, many of the post¿disaster responses undertaken by the Japanese government sparked vivid debates and criticisms from the civil society. The article examines the post-accidental management of the authorities, with a special focus on their risk communication, and explores what went wrong in the process. It deals with the issues of risk assessment, expertise, counter-expertise, policy-makings, stakeholder participation, and trust in crisis and disaster situations. [less ▲]Detailed reference viewed: 38 (1 ULg) Qui ne risque rien n'a rien... Ou comment la Cour européenne des droits de l'homme incite le justiciable à éprouver la protection de ses droits fondamentaux devant son juge nationalRosoux, Géraldine E-print/Working paper (2015)L'article analyse la décision Gherghina c. Roumanie du 9 juillet 2015, qui rejette une requête pour défaut d'épuisement des voies de recours internes.Detailed reference viewed: 18 (0 ULg) Elmore D. L'intégrale Frémeaux et Ass.Sacré, Robert E-print/Working paper (2015)Compte rendu Coffret 5 CDs + livret . La Wallon et le Blues , un mariage réussiDetailed reference viewed: 14 (0 ULg) Mars nighttime auroraEuropean Space Agency, ESA/ATG medialab; Gérard, Jean-Claude ; Soret, Lauriane E-print/Working paper (2015)Press release by the European Space Agency (ESA) on the occasion of the publication in two journals of the peer-reviewed literatureDetailed reference viewed: 23 (1 ULg) Rebates and Article 102 TFEU: The European Commission's Duty to Apply the Guidance PaperPetit, Nicolas E-print/Working paper (2015)This paper shows that the European Union (EU) courts' case-law and general principles of EU law place the European Commission (“Commission”) under a duty to apply the Guidance Communication on Enforcement ... [more ▼]This paper shows that the European Union (EU) courts' case-law and general principles of EU law place the European Commission (“Commission”) under a duty to apply the Guidance Communication on Enforcement Priorities (“Guidance Paper”) in abuse of dominance cases started after its adoption. This duty includes the obligation to test Article 102 TFEU cases under the As Efficient Competitor (“AEC”) framework, as set out in the 2009 Guidance Paper. The judgments handed down by the Union courts in Intel v Commission and Post Danmark II do not alter in any way the Commission’s “self binding” duty to apply the Guidance Paper. If the Commission wishes to depart from the AEC framework, it must officially withdraw its Guidance Paper. [less ▲]Detailed reference viewed: 33 (2 ULg) Les Nouveaux Réactionnaires : mythe ou réalité ?Durand, Pascal ; Sindaco, Sarah ; Devecchio, AlexandreE-print/Working paper (2015)Detailed reference viewed: 55 (3 ULg) Pour analyser la qualité des médicamentsZiemons, Eric E-print/Working paper (2015)Technique permettant de décortiquer les caractéristiques chimiques et physiques des molécules, la spectroscopie vibrationnelle est précieuse dans le domaine pharmaceutique. Les chercheurs du laboratoire ... [more ▼]Technique permettant de décortiquer les caractéristiques chimiques et physiques des molécules, la spectroscopie vibrationnelle est précieuse dans le domaine pharmaceutique. Les chercheurs du laboratoire de Chimie Analytique de l’Université de Liège, spécialistes dans ce domaine de recherche, collaborent régulièrement avec des entreprises pharmaceutiques pour contrôler leurs matières premières, produits finis et procédés. [less ▲]Detailed reference viewed: 18 (1 ULg) Long-term activity and outburst of comet C/2013 A1 (Siding Spring) from narrow-band photometry and long-slit spectroscopyOpitom, Cyrielle ; Guilbert-Lepoutre, A.; Jehin, Emmanuel et alE-print/Working paper (2015)In this paper, we present a unique data set of more than one year's worth of regular observations of comet C/2013 A1(Siding Spring) with TRAPPIST in Chile, along with low-resolution spectra obtained with ... [more ▼]In this paper, we present a unique data set of more than one year's worth of regular observations of comet C/2013 A1(Siding Spring) with TRAPPIST in Chile, along with low-resolution spectra obtained with the ESO/VLT FORS 2 instrument. The comet made a close approach to Mars on October 19, 2014 and was then observed by many space and ground-based telescopes. We followed the evolution of the OH, NH, CN, $\mathrm{C_3}$, and $\mathrm{C_2}$ production rates as well as the $Af\rho$ parameter as a proxy for the dust production. We detected an outburst two weeks after perihelion, with gas and dust production rates being multiplied by a factor five within a few days. By modelling the shape of the CN and $\mathrm{C_2}$ radial profiles, we determined that the outburst happened around on November 10 around 15:30 UT ($\pm$ 5h) and measured a gas ejection velocity of $1.1\pm0.2$ km/s. We used a thermal evolution model to reproduce the activity pattern and outburst. Our results are consistent with the progressive formation of a dust mantle explaining the shallow dependence of gas production rates, which may be partially blown off during the outburst. We studied the evolution of gas composition, using various ratios such as CN/OH, $\mathrm{C_2}$/OH, or $\mathrm{C_3}$/OH, which showed little or no variation with heliocentric distance including at the time of the outburst. This indicates a relative level of homogeneity of the nucleus composition. [less ▲]Detailed reference viewed: 25 (6 ULg) New and updated convex shape models of asteroids based on optical data from a large collaboration networkHanuš, J.; Ďurech, J.; Oszkiewicz, D. A. et alE-print/Working paper (2015)Asteroid modeling efforts in the last decade resulted in a comprehensive dataset of almost 400 convex shape models and their rotation states. This amount already provided a deep insight into physical ... [more ▼]Asteroid modeling efforts in the last decade resulted in a comprehensive dataset of almost 400 convex shape models and their rotation states. This amount already provided a deep insight into physical properties of main-belt asteroids or large collisional families. We aim to increase the number of asteroid shape models and rotation states. Such results are an important input for various further studies such as analysis of asteroid physical properties in different populations, including smaller collisional families, thermophysical modeling, and scaling shape models by disk-resolved images, or stellar occultation data. This provides, in combination with known masses, bulk density estimates, but constrains also theoretical collisional and evolutional models of the Solar System. We use all available disk-integrated optical data (i.e., classical dense-in-time photometry obtained from public databases and through a large collaboration network as well as sparse-in-time individual measurements from a few sky surveys) as an input for the convex inversion method, and derive 3D shape models of asteroids, together with their rotation periods and orientations of rotation axes. The key ingredient is the support of more that one hundred observers who submit their optical data to publicly available databases. We present updated shape models for 36 asteroids, for which mass estimates are currently available in the literature or their masses will be most likely determined from their gravitational influence on smaller bodies, which orbital deflection will be observed by the ESA Gaia astrometric mission. This was achieved by using additional optical data from recent apparitions for the shape optimization. Moreover, we also present new shape model determinations for 250 asteroids, including 13 Hungarias and 3 near-Earth asteroids. [less ▲]Detailed reference viewed: 36 (9 ULg) Characterization of the K2-19 Multiple-Transiting Planetary System via High-Dispersion Spectroscopy, AO Imaging, and Transit Timing VariationsNarita, Norio; Hirano, Teruyuki; Fukui, Akihiko et alE-print/Working paper (2015)K2-19 (EPIC201505350) is an interesting planetary system in which two transiting planets with radii ~ 7 $R_{Earth}$ (inner planet b) and ~ 4 $R_{Earth}$ (outer planet c) have orbits that are nearly in a 3 ... [more ▼]K2-19 (EPIC201505350) is an interesting planetary system in which two transiting planets with radii ~ 7 $R_{Earth}$ (inner planet b) and ~ 4 $R_{Earth}$ (outer planet c) have orbits that are nearly in a 3:2 mean-motion resonance. Here, we present results of ground-based follow-up observations for the K2-19 planetary system. We have performed high-dispersion spectroscopy and high-contrast adaptive-optics imaging of the host star with the HDS and HiCIAO on the Subaru 8.2m telescope. We find that the host star is relatively old (>8 Gyr) late G-type star ($T_{eff}$ ~ 5350 K, $M_s$ ~ 0.9 $M_{Sun}$, and $R_{s}$ ~ 0.9 $R_{Sun}$). We do not find any contaminating faint objects near the host star which could be responsible for (or dilute) the transit signals. We have also conducted transit follow-up photometry for the inner planet with KeplerCam on the FLWO 1.2m telescope, TRAPPISTCAM on the TRAPPIST 0.6m telescope, and MuSCAT on the OAO 1.88m telescope. We confirm the presence of transit-timing variations, as previously reported by Armstrong and coworkers. We model the observed transit-timing variations of the inner planet using the synodic chopping formulae given by Deck & Agol (2015). We find two statistically indistinguishable solutions for which the period ratios ($P_{c}/P_{b}$) are located slightly above and below the exact 3:2 commensurability. Despite the degeneracy, we derive the orbital period of the inner planet $P_b$ ~ 7.921 days and the mass of the outer planet $M_c$ ~ 20 $M_{Earth}$. Additional transit photometry (especially for the outer planet) as well as precise radial-velocity measurements would be helpful to break the degeneracy and to determine the mass of the inner planet. [less ▲]Detailed reference viewed: 23 (2 ULg) The HARPS search for southern extra-solar planets. XXXVIII. Bayesian re-analysis of three systems. New super-Earths, unconfirmed signals, and magnetic cyclesDíaz, R. F.; Ségransan, D.; Udry, S. et alE-print/Working paper (2015)We present the analysis of the entire HARPS observations of three stars that host planetary systems: HD1461, HD40307, and HD204313. The data set spans eight years and contains more than 200 nightly ... [more ▼]We present the analysis of the entire HARPS observations of three stars that host planetary systems: HD1461, HD40307, and HD204313. The data set spans eight years and contains more than 200 nightly averaged velocity measurements for each star. This means that it is sensitive to both long-period and low-mass planets and also to the effects induced by stellar activity cycles. We modelled the data using Keplerian functions that correspond to planetary candidates and included the short- and long-term effects of magnetic activity. A Bayesian approach was taken both for the data modelling, which allowed us to include information from activity proxies such as $\log{(R'_{\rm HK})}$ in the velocity modelling, and for the model selection, which permitted determining the number of significant signals in the system. The Bayesian model comparison overcomes the limitations inherent to the traditional periodogram analysis. We report an additional super-Earth planet in the HD1461 system. Four out of the six planets previously reported for HD40307 are confirmed and characterised. We discuss the remaining two proposed signals. In particular, we show that when the systematic uncertainty associated with the techniques for estimating model probabilities are taken into account, the current data are not conclusive concerning the existence of the habitable-zone candidate HD40307 g. We also fully characterise the Neptune-mass planet that orbits HD204313 in 34.9 days. [less ▲]Detailed reference viewed: 20 (0 ULg) Re-Pricing Through Disruption in Oligopolies with Tacit Collusion: A Framework for Abuse of Collective DominancePetit, Nicolas E-print/Working paper (2015)Detailed reference viewed: 22 (1 ULg) Le syndrome coup de sangCourouce-Malblanc, Anne; Daix, Charlène; Ferry, Bénédicte et alE-print/Working paper (2015)Le coup de sang est un terme utilisé pour nommer une myopathie brutale consécutive à un exercice qui se manifeste cliniquement par des crampes douloureuses et une urine de couleur anormalement foncée du ... [more ▼]Le coup de sang est un terme utilisé pour nommer une myopathie brutale consécutive à un exercice qui se manifeste cliniquement par des crampes douloureuses et une urine de couleur anormalement foncée du fait de l’élimination de la myoglobine des cellules musculaires détruites (myoglobinurie). [less ▲]Detailed reference viewed: 7 (1 ULg) Institutional repositories: it’s a matter of sticks and carrotsRentier, Bernard E-print/Working paper (2015)Detailed reference viewed: 239 (10 ULg) Observing the emergence of chaos in a many-particle quantum systemTomkovic, Jiri; Muessel, Wolfgang; Strobel, Helmut et alE-print/Working paper (2015)Accessing the connection between classical chaos and quantum many-body systems has been a long-standing experimental challenge. Here, we investigate the onset of chaos in periodically driven two-component ... [more ▼]Accessing the connection between classical chaos and quantum many-body systems has been a long-standing experimental challenge. Here, we investigate the onset of chaos in periodically driven two-component Bose-Einstein condensates, whose small quantum uncertainties allow for exploring the phase space with high resolution. By analyzing the uncertainties of time-evolved many-body states, we find signatures of elliptic and hyperbolic periodic orbits generated according to the Poincar\'e-Birkhoff theorem, and the formation of a chaotic region at increasing driving strengths. The employed fluctuation analysis allows for probing the phase-space structure by use of only short-time quantum dynamics. [less ▲]Detailed reference viewed: 10 (0 ULg) Will Big Data Deliver its Promised Productivity Growth?Artige, Lionel E-print/Working paper (2015)Detailed reference viewed: 46 (0 ULg) WASP-120b, WASP-122b and WASP-123b: Three newly discovered planets from the WASP-South surveyTurner, O. D.; Anderson, D. R.; Collier Cameron, A. et alE-print/Working paper (2015)We present the discovery by the WASP-South survey of three planets transiting moderately bright stars (V ~ 11). WASP-120b is a massive (5.0MJup) planet in a 3.6-day orbit that we find likely to be ... [more ▼]We present the discovery by the WASP-South survey of three planets transiting moderately bright stars (V ~ 11). WASP-120b is a massive (5.0MJup) planet in a 3.6-day orbit that we find likely to be eccentric (e = 0.059+0.025-0.018) around an F5 star. WASP-122b is a hot-Jupiter (1.37MJup, 1.79RJup) in a 1.7-day orbit about a G4 star. Our predicted transit depth variation cause by the atmosphere of WASP-122b suggests it is well suited to characterisation. WASP-123b is a hot-Jupiter (0.92MJup, 1.33RJup) in a 3.0-day orbit around an old (~ 7 Gyr) G5 star. [less ▲]Detailed reference viewed: 11 (0 ULg) Le Gevarenwinkel Festival de HerseltSacré, Robert E-print/Working paper (2015)Compte rendu du Festival Gevarenwinkel à HERSELT les 28 et 29 août 2015 , avec photosDetailed reference viewed: 193 (3 ULg) Diversité des expressions et numérique: du constat à l'action?Vlassis, Antonios E-print/Working paper (2015)Antonios Vlassis nous livre un compte-rendu des débats de la dernière Conférence des Parties à la Convention sur la protection et la promotion de la diversité des expressions culturelles (CDEC) en ... [more ▼]Antonios Vlassis nous livre un compte-rendu des débats de la dernière Conférence des Parties à la Convention sur la protection et la promotion de la diversité des expressions culturelles (CDEC) en analysant précisément les enjeux liés au numérique et en décortiquant les prises de position exprimées par différents acteurs. [less ▲]Detailed reference viewed: 15 (3 ULg) Observing Jupiter’s polar stratospheric haze with HST/STIS. An HST White PaperGrodent, Denis ; Bonfond, Bertrand ; Nichols, Jonathan D.E-print/Working paper (2015)The purpose of this HST white paper is to demonstrate that it is possible to monitor Jupiter’s polar haze with HST/STIS without breaking the ground screening limit for bright objects. This demonstration ... [more ▼]The purpose of this HST white paper is to demonstrate that it is possible to monitor Jupiter’s polar haze with HST/STIS without breaking the ground screening limit for bright objects. This demonstration rests on a thorough simulation of STIS output from an existing image obtained with HST/WFPC2. It is shown that the STIS NUV-MAMA + F25CIII filter assembly provides a count rate per pixel ~11 times smaller than that obtained for one pixel of WFPC2 WF3 CCD + F218W corresponding filter. This ratio is sufficiently large to cope with the bright solar light scattered by Jupiter’s atmosphere, which was a lesser concern for WFPC2 CCD safety. These STIS images would provide unprecedented spatial and temporal resolution observations of small-scale stratospheric aerosol structures, possibly associated with Jupiter’s complex FUV aurora. [less ▲]Detailed reference viewed: 12 (0 ULg) Gouvy Jazz & Blues Festival Août 2015Sacré, Robert E-print/Working paper (2015)Compte rendu du festival BLUES avec photosDetailed reference viewed: 259 (0 ULg) Colère des agriculteurs, à qui la faute?Habran, Maxime E-print/Working paper (2015)Depuis le début de l’été, la colère gronde du côté des agriculteurs et pour cause, les prix du lait et de la viande ont atteint des seuils dangereusement bas. Que ce soit en France ou en Belgique, le ... [more ▼]Depuis le début de l’été, la colère gronde du côté des agriculteurs et pour cause, les prix du lait et de la viande ont atteint des seuils dangereusement bas. Que ce soit en France ou en Belgique, le combat est le même. Les agriculteurs veulent des prix plus élevés pour la viande et pour le lait car actuellement ceux-ci sont inférieurs aux coûts de production. Cette note a pour objectif de répondre à trois questions : d’où vient la crise, quelles sont les solutions et les mesures prises sont-elles suffisantes ? [less ▲]Detailed reference viewed: 188 (11 ULg) La gestation chez les petits camélidés d'Amérique du Sud : physiologie, constat et pathologieHanzen, Christian ; Cucho Dolmos, Hernan; Ampuero Casquino, Enrique et alE-print/Working paper (2015)Detailed reference viewed: 22 (2 ULg) The French language runs throughout the worldMorato, Nicola ; Gaunt, SimonE-print/Working paper (2015)Detailed reference viewed: 40 (3 ULg) From Constrained Delaunay Triangulations to Roadmap Graphs with Arbitrary ClearanceLens, Stéphane ; Boigelot, Bernard E-print/Working paper (2015)This work studies path planning in two-dimensional space, in the presence of polygonal obstacles. We specifically address the problem of building a roadmap graph, that is, an abstract representation of ... [more ▼]This work studies path planning in two-dimensional space, in the presence of polygonal obstacles. We specifically address the problem of building a roadmap graph, that is, an abstract representation of all the paths that can potentially be followed around a given set of obstacles. Our solution consists in an original refinement algorithm for constrained Delaunay triangulations, aimed at generating a roadmap graph suited for planning paths with arbitrary clearance. In other words, a minimum distance to the obstacles can be specified, and the graph does not have to be recomputed if this distance is modified. Compared to other solutions, our approach has the advantage of being simpler, as well as significantly more efficient. [less ▲]Detailed reference viewed: 9 (3 ULg) Les biotechnologies de la reproduction des petits camélidés sud-américainsHanzen, Christian ; Cucho Dolmo, Hernan; Ampuero Casquino, Enrique et alE-print/Working paper (2015)Detailed reference viewed: 25 (2 ULg) Implications of Competitive Neutrality for Competition Agencies: A Process PerspectivePetit, Nicolas E-print/Working paper (2015)Detailed reference viewed: 9 (1 ULg) Le cycle sexuel de la femelle des petits camélidés sud-américainsHanzen, Christian ; Cucho Dolmos, Hernan; Ampuero Casquino, Enrique et alE-print/Working paper (2015)Detailed reference viewed: 29 (0 ULg) Variability in the super-Earth 55 Cnc eDemory, Brice-Olivier; Gillon, Michaël ; Madhusudhan, Nikku et alE-print/Working paper (2015)Considerable progress has been made in recent years in observations of atmospheric signatures of giant exoplanets, but processes in rocky exoplanets remain largely unknown due to major challenges in ... [more ▼]Considerable progress has been made in recent years in observations of atmospheric signatures of giant exoplanets, but processes in rocky exoplanets remain largely unknown due to major challenges in observing small planets. Numerous efforts to observe spectra of super-Earths, exoplanets with masses of 1-10 Earth masses, have thus far revealed only featureless spectra. In this paper we report a 4-$\sigma$ detection of variability in the dayside thermal emission from the transiting super-Earth 55 Cancri e. Dedicated space-based monitoring of the planet in the mid-infrared over eight eclipses revealed the thermal emission from its dayside atmosphere varying by a factor 3.7 between 2012 and 2013. The amplitude and trend of the variability are not explained by potential influence of star spots or by local thermal or compositional changes in the atmosphere over the short span of the observations. The possibility of large scale surface activity due to strong tidal interactions possibly similar to Io, or the presence of circumstellar/circumplanetary material appear plausible and motivate future long-term monitoring of the planet. [less ▲]Detailed reference viewed: 22 (1 ULg) AuraDurand, Pascal E-print/Working paper (2015)Entrée du Lexique Socius sur le concept d'Aura chez Walter BenjaminDetailed reference viewed: 112 (11 ULg) L'Union européenne et les expressions culturelles à l'ère numérique : l'intégration négative par defaut?Vlassis, Antonios E-print/Working paper (2015)Detailed reference viewed: 49 (5 ULg) Anatomie de l'appareil génital femelle des petits camélidés sud-américainsHanzen, Christian ; Cucho Dolmos, Hernan; Amupero Casquino, Enrique et alE-print/Working paper (2015)Detailed reference viewed: 17 (0 ULg) Theories of Self-Preferencing Under Article 102 TFEU: A Reply to Bo VesterdorfPetit, Nicolas E-print/Working paper (2015)Detailed reference viewed: 15 (2 ULg) Passeport santé pour bananierMassart, Sébastien E-print/Working paper (2015)Detailed reference viewed: 23 (2 ULg) Les droits fondamentaux, une substance malléable pour le juge? Propos sur la "dématérialisation" des droits fondamentauxRosoux, Géraldine E-print/Working paper (2015)Ce texte contient un résumé de la thèse de doctorat de l'auteur; il est disponible en ligne: http://www.justice-en-ligne.be/article706.html.Detailed reference viewed: 41 (10 ULg) The crucial role of HST during the NASA Juno mission: a “Juno initiative”Grodent, Denis ; Bonfond, Bertrand ; Gérard, Jean-Claude et alE-print/Working paper (2015)In 2016, the NASA Juno spacecraft will initiate its one-year mission around Jupiter and become the first probe to explore the polar regions of Jupiter. The HST UV instruments (STIS and ACS) can greatly ... [more ▼]In 2016, the NASA Juno spacecraft will initiate its one-year mission around Jupiter and become the first probe to explore the polar regions of Jupiter. The HST UV instruments (STIS and ACS) can greatly contribute to the success of the Juno mission by providing key complementary views of Jupiter’s UV aurora from Earth orbit. Juno carries an ultraviolet Spectrograph (UVS) and an infrared spectral mapper (JIRAM) that will obtain high-resolution spectral images providing the auroral counterpart to Juno’s in situ particles and fields measurements with the plasma JADE and JEDI particle detectors. The Juno mission will be the first opportunity to measure simultaneously the energetic particles at high latitude and the auroral emissions they produce. Following programmatic and technical limitations, the amount of UVS data transmitted to Earth will be severely restricted. Therefore, it is of extreme importance that HST captures as much additional information as possible on Jupiter’s UV aurora during the one-year life of the Juno mission. This white paper is a plea for a “Juno initiative” that will ensure that a sufficient number of orbits is allocated to this unique solar system mission. [less ▲]Detailed reference viewed: 21 (1 ULg) Access to Electoral Rights BoliviaZegada, Maria Teresa; Lafleur, Jean-Michel E-print/Working paper (2015)The issue of passive and active electoral rights in Bolivia has gone through various phases that are examined in details in this article. Universal suffrage in Bolivia occurred around the same time as in ... [more ▼]The issue of passive and active electoral rights in Bolivia has gone through various phases that are examined in details in this article. Universal suffrage in Bolivia occurred around the same time as in most states in that region: in the middle of the 20th century. The next wave of reforms occurred during the 1980s when dictatorships were removed from power. At that time, processes of democratization intensified in Bolivia and other parts of Latin America, eventually leading to the progressive strengthening of democratic institutions. It is really during the 1990s and early 2000s that the most important democratic transformations occurred. Major institutional reforms were passed during this period in particular to increase the participation of women and indigenous peoples in public affairs. The inclusion of the principles of gender equality and interculturality in the new constitution of 2009 is one of the clearest sign of this new approach. Similarly, another sector of the Bolivian population that had been traditionally prevented from exercising political rights. that is, Bolivians residing abroad have been closely attended to by the Evo Morales government since 2006. After the first external voting experience in 2009, the system was once again reformed to enable greater participation from abroad in the 2014 presidential election. These elements confirm that the extension of political rights in Bolivia is a process that has gone trough major changes over the past two decades but remains a work in process. [less ▲]Detailed reference viewed: 30 (0 ULg) Efficient Path Interpolation and Speed Profile Computation for Nonholonomic Mobile RobotsLens, Stéphane ; Boigelot, Bernard E-print/Working paper (2015)This paper studies path synthesis for nonholonomic mobile robots moving in two-dimensional space. We first address the problem of interpolating paths expressed as sequences of straight line segments, such ... [more ▼]This paper studies path synthesis for nonholonomic mobile robots moving in two-dimensional space. We first address the problem of interpolating paths expressed as sequences of straight line segments, such as those produced by some planning algorithms, into smooth curves that can be followed without stopping. Our solution has the advantage of being simpler than other existing approaches, and has a low computational cost that allows a real-time implementation. It produces discretized paths on which curvature and variation of curvature are bounded at all points, and preserves obstacle clearance. Then, we consider the problem of computing a time-optimal speed profile for such paths. We introduce an algorithm that solves this problem in linear time, and that is able to take into account a broader class of physical constraints than other solutions. Our contributions have been implemented and evaluated in the framework of the Eurobot contest. [less ▲]Detailed reference viewed: 44 (16 ULg) La culture dans l'agenda post-2015: de la mobilisation internationale à l'inclusion modeste?Vlassis, Antonios E-print/Working paper (2015)Detailed reference viewed: 30 (1 ULg) Prélèvement, analyse et conservation du sperme du mâle des petits camélidés sud-américainsHanzen, Christian ; Cucho Dolmos, Hernan; Ampuero Casquino, Enrique et alE-print/Working paper (2015)Detailed reference viewed: 18 (0 ULg) Some misunderstood or unknown tricks (XIII) (LaTeX)Merciadri, Luca E-print/Working paper (2015)We will here again consider many tips and tricks. This time, they will mostly come from Glad Deschrijver, TeX Tricks, 2011. (http://users.ugent.be/~gdschrij/LaTeX/textricks.html.) Tricks: vertically ... [more ▼]We will here again consider many tips and tricks. This time, they will mostly come from Glad Deschrijver, TeX Tricks, 2011. (http://users.ugent.be/~gdschrij/LaTeX/textricks.html.) Tricks: vertically aligned itemize environments, allowing linebreaks after comma in math mode, writing under and over elements, and using stacks, footnotes with a new number at each section, footnotes in tabular, splitting algorithm environments on multiple pages, let " produce opening/closing quotation marks, indenting some text but not the first line, using diagonal dots positioned according to the opposite diagonal, using a centered verbatim environment, drawing a table with dashed lines, shaded cells and arrows pointing at a row and a column, correct spacing around square brackets (used for sets) in math mode. [less ▲]Detailed reference viewed: 12 (1 ULg) Some misunderstood or unknown LaTeX tricks (XIV) and LaTeX learning curveMerciadri, Luca E-print/Working paper (2015)We will here give three tricks: i. using a personalized \overline, ii. boxing every digit of an integer, iii. using \scalebox. I will then expose my point of view about the LaTeX learning curve, and give ... [more ▼]We will here give three tricks: i. using a personalized \overline, ii. boxing every digit of an integer, iii. using \scalebox. I will then expose my point of view about the LaTeX learning curve, and give some of the most common beginners’ mistakes. [less ▲]Detailed reference viewed: 3 (0 ULg) Some misunderstood or unknown LaTeX tricks (XV)Merciadri, Luca E-print/Working paper (2015)After having looked at about 150 StackExchange pages of 50 topics (that sums up to about 7500 topics’ names), I give you, in this article and in the next issue, the most interesting topics’ answers to my ... [more ▼]After having looked at about 150 StackExchange pages of 50 topics (that sums up to about 7500 topics’ names), I give you, in this article and in the next issue, the most interesting topics’ answers to my eyes. We will first begin by two additions in regard to 31(3), 32(1). [less ▲]Detailed reference viewed: 22 (2 ULg) Some misunderstood or unknown LaTeX tricks (XVI)Merciadri, Luca E-print/Working paper (2015)This is the second (and last) part of the tricks I found on StackExchange. First part began in the preceding issue. We will begin by a personal trick, and end by some inquiry about my LaTeX Tips & Tricks.Detailed reference viewed: 16 (3 ULg) Documents as a source of information; Tabular packages' purposes, conflicts; Same space in matrices; Logic inferencesMerciadri, Luca E-print/Working paper (2015)The various aspects of the title are considered.Detailed reference viewed: 42 (16 ULg) Some misunderstood or unknown tricks (X) (LaTeX)Merciadri, Luca E-print/Working paper (2015)This is the 10th edition of my Tips & Tricks.' This time, we shall first see how to write dancing text,' roman numerals, how to draw under and over braces on same elements, and how to display aligned ... [more ▼]This is the 10th edition of my Tips & Tricks.' This time, we shall first see how to write dancing text,' roman numerals, how to draw under and over braces on same elements, and how to display aligned (in)equations systems. We will then end by discussing on BibLaTeX and Biber, which constitute a promising alternative to BibTeX. [less ▲]Detailed reference viewed: 36 (2 ULg) Some misunderstood or unknown tricks (XI) (LaTeX) and encoding issues (II)Merciadri, Luca E-print/Working paper (2015)Three subjects will be detailed: 1. Using LaTeX syntax as an unambiguous way to communicate, 2. Writing a bold \ell, 3. Fonts' encodings.Detailed reference viewed: 5 (1 ULg) Transnational Health Insurance Schemes: A New Avenue for Congolese Immigrants in Belgium to Care for Their Relatives’ Health from Abroad?Lafleur, Jean-Michel ; Lizin, OlivierE-print/Working paper (2015)What can immigrants do for non-migrant relatives in their home country who need healthcare they cannot afford? To answer this question, we first examine four existing methods that can be found in the ... [more ▼]What can immigrants do for non-migrant relatives in their home country who need healthcare they cannot afford? To answer this question, we first examine four existing methods that can be found in the existing literature: mobility, remittances, workers’ health insurance and diasporic health insurance. In the second part of the paper, we discuss an innovative strategy called “transnational health insurance” (THI). These insurance schemes are set up by immigrants in cooperation with a multitude of actors including health insurance companies in destination countries and healthcare providers in countries origin. THIs offer health coverage to non-migrant relatives in the home country based on a premium paid directly by immigrants to the insurance company in their country of residence. Analyzing the creation and implementation of Belgian-Congolese THIs, we discuss the strengths and weaknesses of these schemes in responding to the needs of both immigrants and their non-migrant relatives. The article concludes with a discussion on the specificities of THIs as hybrid forms of remittances. [less ▲]Detailed reference viewed: 206 (41 ULg) open comment period for the position paper on strategy to enable the distribution of banana streak virus-infected germplasmMassart, Sébastien E-print/Working paper (2015)Detailed reference viewed: 16 (1 ULg) Policy dialogue: What it is and how it can contribute to evidence-informed decision-making.Rajan, D; El Husseiny, D; Porignon, Denis et alE-print/Working paper (2015)Detailed reference viewed: 28 (2 ULg) Does sector-specific experience matter? The case of European higher education ministersLefebvre, Mathieu ; Jacqmin, JulienE-print/Working paper (2015)This paper looks at the relationship between higher education ministers and the performance of the sector that they govern. Using an original panel dataset with the characteristics of European higher ... [more ▼]This paper looks at the relationship between higher education ministers and the performance of the sector that they govern. Using an original panel dataset with the characteristics of European higher education ministers, we find that having a past experience in the sector leads to a higher level of performance, as measured by ranking data. Making a parallel with the literature about the impact of education on the educated, we discuss potential explanations behind the impact of this on-the-job learning experience. As we find that this characteristic has no impact on the spendings of the sector, we argue that this academic experience makes them more prone to introduce adequate reforms. Furthermore, we find that this result is driven by ministers with both this sector-specific and an electoral experience, the latter measured by a succesful election at the regional or national level. This tends to show that political credibility should not be overshadowed by the importance of the sector-specific experience of ministers. [less ▲]Detailed reference viewed: 34 (3 ULg) PERFORMANCE ET INVENTION. LE LABORATOIRE DE L’EXPERIENCE ESTHETIQUEHagelstein, Maud E-print/Working paper (2015)Lorsqu’il cherche à qualifier l’époque de l’art dans laquelle nous baignons actuellement, le philosophe Jacques Rancière parle d’un régime pour lequel l’expérience esthétique serait déterminante ... [more ▼]Lorsqu’il cherche à qualifier l’époque de l’art dans laquelle nous baignons actuellement, le philosophe Jacques Rancière parle d’un régime pour lequel l’expérience esthétique serait déterminante : sensible (par définition) et prise dans un rapport paradoxal de continuité et d’exception avec l’expérience commune. Le régime esthétique de l’art – celui qui affecte les productions artistiques contemporaines – signerait notamment l’effacement des spécificités des arts (et l’abandon du régime très hiérarchisé des Beaux-Arts) au profit d’une expérience sensible commune à toutes les formes d’expression artistiques . Le propre de l’art serait donc de faire vivre à son spectateur une telle expérience, qui toucherait directement ses sens et son imagination. Une expérience dont la tonalité particulière serait directement reconnaissable. Une expérience en excès par rapport à ses habitudes et qui le ferait basculer progressivement dans le domaine si singulier de l’art. On voudrait ici défendre l’idée suivante : la performance artistique semble l’une des animatrices principales de ce régime contemporain en tant qu’elle vise à dégager – au-delà des particularismes des médias d’expression – un territoire très large (un laboratoire) d’expérimentation pour l’art. À travers leurs propositions, les artistes performeurs ne produisent pas des œuvres d’art (c’est-à-dire des produits finis), ils montrent le travail de la créativité à l’œuvre. [less ▲]Detailed reference viewed: 82 (3 ULg) La réception du livre italien dans les anciens Pays-Bas à la première Modernité. Bilan et perspectives de recherche (revised edition)Adam, Renaud E-print/Working paper (2015)Detailed reference viewed: 24 (3 ULg) Non-renewable and intermittent renewable energy sources: friends and foes?baranes, edmond; Jacqmin, Julien ; poudou, jean-christopheE-print/Working paper (2015)This paper studies the links between non-renewable and intermittent renewable energy sources in the production of electricity. We argue that the relationship between the price of natural gas and ... [more ▼]This paper studies the links between non-renewable and intermittent renewable energy sources in the production of electricity. We argue that the relationship between the price of natural gas and investments in solar and wind capacity is represented by a bell-shaped curve, as opposed to being linear. Hence, for relatively low natural gas prices, the two modes of production are substitutes. After a price threshold is reached, the two are complementary. A theoretical model explains this as the trade-off resulting from two forces: the input price differential of these two modes of production and the risks related to the unpredictable nature of renewable energy. Using U.S. state-level data from 1998 to 2012, we find that this relationship is robust to various empirical specifications. [less ▲]Detailed reference viewed: 40 (0 ULg) La locura como compromiso : Un Quijote actualFrancois, Jeromine E-print/Working paper (2015)Detailed reference viewed: 17 (0 ULg) Does sector-specific experience matter? The case of European higher education ministersJacqmin, Julien ; Lefebvre, Mathieu E-print/Working paper (2015)This paper looks at the relationship between higher education ministers and the performance of the sector that they govern. Using an original panel dataset with the characteristics of European higher ... [more ▼]This paper looks at the relationship between higher education ministers and the performance of the sector that they govern. Using an original panel dataset with the characteristics of European higher education ministers, we find that having a past experience in the sector leads to a higher level of performance, as measured by ranking data. Making a parallel with the literature about the impact of education on the educated, we discuss potential explanations behind the impact of this on-the-job learning experience. As we find that this characteristic has no impact on the spendings of the sector, we argue that this academic experience makes them more prone to introduce adequate reforms that makes the sector more attractive for top-researchers. Furthermore, we find that this result is driven by ministers with both this sector-specific and an electoral experience, the latter measured by a successful election at the regional or national level. This tends to show that political credibility should not be overshadowed by the importance of the sector-specific experience of ministers. [less ▲]Detailed reference viewed: 28 (1 ULg) Le Petit Bottin des Lettres et des Arts : discours et effets d’une topographie fin de siècleSaint-Amand, Denis E-print/Working paper (2015)Publication des actes de la journée d'étude de la SERD (2011), supervisée par J.-L. Diaz et J.-D. WagneurDetailed reference viewed: 22 (4 ULg) Work Capacity and Longer Working Lives in BelgiumJousten, Alain ; Lefebvre, Mathieu E-print/Working paper (2015)We explore the link between health indicators and employment rates of the population aged 55 or more. Our focus lies on work capacity as a key determinant of employment. Using cohort mortality information ... [more ▼]We explore the link between health indicators and employment rates of the population aged 55 or more. Our focus lies on work capacity as a key determinant of employment. Using cohort mortality information as a proxy for overall health outcomes, we establish a substantial untapped work capacity in the population 55+. Similar results are obtained when relying on individual-level objective and subjective health and socioeconomic parameters as predictors. [less ▲]Detailed reference viewed: 57 (0 ULg) 3-dimensional Continued Fraction Algorithms Cheat SheetsLabbé, Sébastien E-print/Working paper (2015)Detailed reference viewed: 13 (2 ULg) On some symmetric multidimensional continued fraction algorithmsLabbé, Sébastien ; Arnoux, PierreE-print/Working paper (2015)Detailed reference viewed: 11 (0 ULg) A Perron theorem for matrices with negative entries and applications to Coxeter groupsLabbé, Sébastien ; Labbé, Jean-PhilippeE-print/Working paper (2015)Detailed reference viewed: 9 (2 ULg) On a group theoretic generalization of the Morse-Hedlund theoremCharlier, Emilie ; Puzynina, Svetlana; Zamboni, LucaE-print/Working paper (2015)In their 1938 seminal paper on symbolic dynamics, Morse and Hedlund proved that every aperiodic infinite word contains at least n+ 1 distinct factors of each length n. They further showed that an infinite ... [more ▼]In their 1938 seminal paper on symbolic dynamics, Morse and Hedlund proved that every aperiodic infinite word contains at least n+ 1 distinct factors of each length n. They further showed that an infinite word has exactly n+ 1 distinct factors of each length n if and only if it is binary, aperiodic and balanced, i.e., it is a Sturmian word. In this paper we obtain a broad generalization of the Morse-Hedlund theorem via group actions. [less ▲]Detailed reference viewed: 12 (0 ULg) Notice de Barlaam et Josaphat : les versions anonymes françaises (Arlima)Lambert, Adelaïde E-print/Working paper (2015)Contribution au site internet ARLIMA — Archives de littérature du Moyen Âge. Notice des cinq versions françaises anonymes du XIIIe s. de Barlaam et Josaphat : la version champenoise en prose, l'abrégé en ... [more ▼]Contribution au site internet ARLIMA — Archives de littérature du Moyen Âge. Notice des cinq versions françaises anonymes du XIIIe s. de Barlaam et Josaphat : la version champenoise en prose, l'abrégé en prose de la version champenoise, la traduction française de la version grecque du Mont Athos, la version en vers octosyllabiques et la mise en prose de la version en vers octosyllabiques. Les fiches, composées d'une description des textes (datation, forme, témoins, etc.) assortie d'une bibliographie complète (éditions et études critiques), établissent un bilan de l'état de la recherche sur ces versions. [less ▲]Detailed reference viewed: 44 (8 ULg) ICSEM Working Paper Series: Comparing Social Enterprise Models WorldwideDefourny, Jacques ; Nyssens, MartheE-print/Working paper (2015)The International Comparative Social Enterprise Models (ICSEM) Project takes place within the Inter-University Attraction Pole on Social Enterprise (IAP-SOCENT) funded by the Belgian Science Policy and ... [more ▼]The International Comparative Social Enterprise Models (ICSEM) Project takes place within the Inter-University Attraction Pole on Social Enterprise (IAP-SOCENT) funded by the Belgian Science Policy and coordinated by the Centre for Social Economy, HEC Liege, University of Liege (2012-2017). It involves more than 200 researchers from 50 countries across the world. the ICSEM Working Paper Series is made of country contributions focusing on social enterprise models at the national level. [less ▲]Detailed reference viewed: 48 (2 ULg) HYBRID INVESTIGATION OF AIR TRANSPORT PROCESSES IN MODERATELY SLOPED STEPPED SPILLWAY FLOWSValero Huerta, Daniel ; Bung, Daniel B.E-print/Working paper (2015)In stepped spillway flows, a self-aerated flow region is often found where large quantities of air may be entrained into the water body. This air is then mixed with the water phase leading to an air-water ... [more ▼]In stepped spillway flows, a self-aerated flow region is often found where large quantities of air may be entrained into the water body. This air is then mixed with the water phase leading to an air-water mixture flow with different characteristics than the clear water flow. Thus, air entrainment is an important flow feature which needs to be considered for safe design of these hydraulic structures. Advances in the development of new air-water measurement techniques and numerical modeling capabilities allow addressing these complex problems. Computational Fluid Dynamics (CFD) modeling can be a powerful supplement for physical model tests. In the presented study, the self-aeration process and the subsequent air transport in the aerated flow region of a stepped spillway model is investigated by means of both, new experimental and numerical methods. The slope of the spillway model is 1:2 and different flow rates are considered involving a skimming flow regime. For the physical model tests, a double-tip conductivity probe and ultrasonic sensors are used to evaluate air-water flow properties and flow depths, respectively. Additionally, high-speed camera recordings help to qualitatively analyze the air-water transport. In the numerical model, the same stepped spillway is simulated with identical flow conditions. A RANS approach coupled with RNG k-ε turbulence modeling and a VOF technique for free surface tracking is used. The determination of the inception point and the entrained air quantities are estimated employing a subscale model. To verify the numerical model, results are compared to the laboratory air-water measurements. The comparison of results from both techniques helps to identify their capabilities and limitations. [less ▲]Detailed reference viewed: 13 (1 ULg) IMAGE PROCESSING FOR BUBBLE IMAGE VELOCIMETRY IN SELF-AERATED FLOWSBung, Daniel B.; Valero Huerta, Daniel E-print/Working paper (2015)In this study, different preprocessing techniques have been applied in order to test if the accuracy of Bubble Image Velocimetry (BIV) calculations in self-aerated flows can be improved. For this purpose ... [more ▼]In this study, different preprocessing techniques have been applied in order to test if the accuracy of Bubble Image Velocimetry (BIV) calculations in self-aerated flows can be improved. For this purpose, high-speed movies with a resolution of 1920 × 1200 px and a frame rate of 730 Hz are captured on a stepped spillway model with a Phantom M120 camera supplied by LaVision. BIV results are obtained by application of the open-source Matlab® toolbox PIVlab and compared to intrusive data from a double-tip conductivity probe. Averaging velocity fields from 249 frame pairs help to obtain robust results. Therefore, BIV is carried out in a loop with preceding variation of image processing techniques. Results show some potential improvement for the same cross correlation algorithm and post-processing options. However, BIV results tend to underestimate flow velocities when compared to the conductivity probe data. [less ▲]Detailed reference viewed: 13 (1 ULg) Anatomie et physiologie de la reproduction du male des petits camélidés sud-américainsHanzen, Christian ; Cucho Dolmos, Hernan; Ampuero Casquino, Enrique et alE-print/Working paper (2014)Detailed reference viewed: 21 (0 ULg) Discovery of WASP-85Ab: a hot Jupiter in a visual binary systemBrown, D. J. A.; Anderson, D. R.; Armstrong, D. J. et alE-print/Working paper (2014)We report the discovery of the transiting hot Jupiter exoplanet WASP-85Ab. Using a combined analysis of spectroscopic and photometric data, we determine that the planet orbits its host star every 2.66 ... [more ▼]We report the discovery of the transiting hot Jupiter exoplanet WASP-85Ab. Using a combined analysis of spectroscopic and photometric data, we determine that the planet orbits its host star every 2.66 days, and has a mass of 1.09+/-0.03 M_Jup and a radius of 1.44+/-0.02 R_Jup. The host star is of G5 spectral type, with magnitude V=11.2, and lies 125+/-80 pc distant. We find stellar parameters of T_eff=5685+/-65 K, super-solar metallicity ([Fe/H]=0.08+/-0.10), M_star=1.04+/-0.07 M_sun and R_star=0.96+/-0.13 R_sun. The system has a K-dwarf binary companion, WASP-85B, at a separation of approximately 1.5". The close proximity of this companion leads to contamination of our photometry, decreasing the apparent transit depth that we account for during our analysis. Without this correction, we find the depth to be 50 percent smaller, the stellar density to be 32 percent smaller, and the planet radius to be 18 percent smaller than the true value. Many of our radial velocity observations are also contaminated; these are disregarded when analysing the system in favour of the uncontaminated HARPS observations, as they have reduced semi-amplitudes that lead to underestimated planetary masses. We find a long-term trend in the binary position angle, indicating a misalignment between the binary and orbital planes. WASP observations of the system show variability with a period of 14.64 days, indicative of rotational modulation caused by stellar activity. Analysis of the Ca ii H+K lines shows strong emission that implies that both binary components are strongly active. We find that the system is likely to be less than a few Gyr old. WASP-85 lies in the field of view of K2 Campaign 1. Long cadence observations of the planet clearly show the planetary transits, along with the signature of stellar variability. Analysis of the K2 data, both long and short cadence, is ongoing. [less ▲]Detailed reference viewed: 41 (3 ULg) Aspects juridiques de la fiscalité du logement en WallonieBahi, Sacha; Bianchet, Bruno ; Farah, Jihad et alE-print/Working paper (2014)Ce numéro des « Notes de recherche » synthétise un des volets d’une étude dont l’objet est « la fiscalité relative au logement et l’aménagement du territoire ». Or, afin de bien appréhender les tenants et ... [more ▼]Ce numéro des « Notes de recherche » synthétise un des volets d’une étude dont l’objet est « la fiscalité relative au logement et l’aménagement du territoire ». Or, afin de bien appréhender les tenants et les aboutissants de cette causalité et, surtout, de formuler des recommandations et propositions relatives au système fiscal en regard d’objectifs territoriaux, une analyse approfondie du cadre juridique s’avère indispensable. Cet examen constitue, en soi, un tout cohérent auquel pourra se référer le praticien de la gestion territoriale. La présente réflexion vise ainsi à présenter les divers mécanismes juridiques qui constituent des impôts frappant les biens immobiliers affectés au logement en Wallonie. L’étude s’intéresse principalement au territoire géographique wallon et non pas au seul pouvoir taxateur : « Région wallonne ». La précision est d’importance, a fortiori depuis l’entrée en vigueur de la sixième Réforme de l’État qui élargit considérablement la compétence du législateur wallon en la matière. Sont donc traités dans ce cadre tant les impôts fédéraux que régionaux, sans oublier les diverses « taxes locales » propres à chacune des communes et provinces de Wallonie. Les impôts directs, comme les impôts indirects seront analysés. Partant de ce balayage législatif de lege lata, la réflexion s’efforce de faire ressortir les diverses nuances politiques qui se dégagent des impôts analysés. Le doigt est tantôt mis sur les lacunes légistiques des textes, tantôt sur les critiques jurisprudentielles adressées aux taxes, tantôt encore, sur les potentialités qu’offriraient la redéfinition ou le recalibrage d’un mécanisme existant. L’étude vise, lorsqu’une possibilité lui est laissée, à formuler des propositions de lege feranda afin d’affermir la légalité de certains mécanismes fiscaux et d’améliorer l’utilisation qui est faite de ceux-ci à l’heure actuelle. [less ▲]Detailed reference viewed: 138 (36 ULg) Premières mises en liberté avant jugement devant la Cour pénale internationaleDeprez, Christophe E-print/Working paper (2014)Ce billet évoque les premières libérations avant jugement intervenues devant la Cour pénale internationale (octobre 2014). Après avoir été soumis à un comité de lecture, il a été publié sur le 'blogue' de ... [more ▼]Ce billet évoque les premières libérations avant jugement intervenues devant la Cour pénale internationale (octobre 2014). Après avoir été soumis à un comité de lecture, il a été publié sur le 'blogue' de la Clinique de droit international pénal et humanitaire de l'Université de Laval. [less ▲]Detailed reference viewed: 40 (1 ULg) "Quarante acres". Traduction d'un poème de Derek Walcott en hommage à Barack Obama (2008)Bada, Valérie E-print/Working paper (2014)Poème écrit par Derek Walcott en 2008 en hommage au nouveau président Barack ObamaDetailed reference viewed: 18 (0 ULg)