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See detailThe impact of external market conditions on R&D valuation
Lambert, Marie ULiege; Platania, Federico; Moreno, Manuel

E-print/Working paper (2017)

Traditional real options models regard the idiosyncratic risk of a project as the main value driver. Beyond the specific risks embedded in the project, i.e., both its technical and idiosyncratic risk, our ... [more ▼]

Traditional real options models regard the idiosyncratic risk of a project as the main value driver. Beyond the specific risks embedded in the project, i.e., both its technical and idiosyncratic risk, our model captures the interactions among different market, economic and social forces and their impact on R&D project valuation. Using Fourier series, our model aggregates external forces that play relevant roles in the process that determines the cash flow structure. Consequently, the posited model provides managers and policy makers with a powerful yet flexible tool to stress test several economic scenarios under which the project could develop. In a practical case, we apply our novel model and methodology to the valuation of a pharmaceutical R&D project and examine the impact of external forces on the optimal time to launch the project. The real options approach also allows for the possibility of optimally abandoning a project before completion whenever the investment cost exceeds the expected net cash flow stream after considering the impact of market conditions. [less ▲]

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See detailVariable selection in proportional hazards cure model with time-varying covariates, application to US bank failures
Beretta, Alessandro ULiege; Heuchenne, Cédric ULiege

E-print/Working paper (2017)

From a survival analysis perspective, since defaults are rare events, bank failures data often exhibit heavy censoring rate. This empirical evidence can be explained by the existence of a subpopulation of ... [more ▼]

From a survival analysis perspective, since defaults are rare events, bank failures data often exhibit heavy censoring rate. This empirical evidence can be explained by the existence of a subpopulation of banks likely immune from bankruptcy. In this regard, we use a mixture cure model to separate the factors with an influence on the susceptibility to default from the ones affecting the survival time of susceptible banks. In this paper, we extend a semi-parametric proportional hazards cure model to time-varying covariates and we propose a variable selection technique based on its penalized likelihood. By means of a simulation study, we show how this technique per- forms reasonably well. Finally, we illustrate an application to commercial bank failures in the United States over the period 2006-2016. [less ▲]

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See detailBerge-acyclic multilinear 0-1 optimization problems
Buchheim, Christoph; Crama, Yves ULiege; Rodriguez Heck, Elisabeth ULiege

E-print/Working paper (2016)

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See detailVorzeitigkeit als Herausforderung beim Übersetzen narrativer Texte
Münzberg, Franziska ULiege

E-print/Working paper (2016)

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See detailSafety on intermodal hubs – The case of the Liège-Guillemins railway station
Hanocq, Philippe ULiege; Dufert, Guillaume

E-print/Working paper (2016)

The study focuses on insecurity problems posed by an extremely important intermodal hub at the scale of the city of Liege. It is based on a double analysis : - firstly on a statement of objective ... [more ▼]

The study focuses on insecurity problems posed by an extremely important intermodal hub at the scale of the city of Liege. It is based on a double analysis : - firstly on a statement of objective insecurity identified in the station and its surroundings by the police between 2007 and 2015 ; - secondly on a survey on the feeling of insecurity (subjective insecurity) conducted in 2015 by the operator of the station (SNCB – Belgian National Railway Company). [less ▲]

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See detailPotential, opportunities and benefits of electric vehicles as frequency regulation resources
Glavic, Mevludin ULiege; Alvarado, Fernando

E-print/Working paper (2016)

Any imbalance between electric power supply and demand results in power system frequency deviations from its nominal value. Frequency regulation is one of the most important services that regional system ... [more ▼]

Any imbalance between electric power supply and demand results in power system frequency deviations from its nominal value. Frequency regulation is one of the most important services that regional system operators perform to ensure reliable system operation. Traditional power supply sources such as generators are usually automatically modulated to help balance generation and demand by adjusting their output based in part on system frequency. As a result of the decreased inertia of the system caused by decommissioning of traditional power plants and the increase in the penetration of renewable energy sources, the increased use of demand side controls for the purpose of frequency regulation is receiving increased attention. Demand control can provide fast response to any imbalance. This opens up the possibility for Electric Vehicles (EVs) to be used as frequency regulation grid resources. This write-up discusses the potential, opportunities and benefit of doing so. [less ▲]

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See detailPREDetector 2.0: Online and Enhanced Version of the Prokaryotic Regulatory Elements Detector Tool
Tocquin, Pierre ULiege; Naomé, Aymeric ULiege; Jourdan, Samuel ULiege et al

E-print/Working paper (2016)

In the era that huge numbers of microbial genomes are being released in the databases, it becomes increasingly important to rapidly mine genes as well as predict the regulatory networks that control their ... [more ▼]

In the era that huge numbers of microbial genomes are being released in the databases, it becomes increasingly important to rapidly mine genes as well as predict the regulatory networks that control their expression. To this end, we have developed an improved and online version of the PREDetector software aimed at identifying putative transcription factor-binding sites (TFBS) in bacterial genomes. The original philosophy of PREDetector 1.0 is maintained, i.e. to allow users to freely fix the DNA-motif screening parameters, and to provide a statistical means to estimate the reliability of the prediction output. This new version offers an interactive table as well as graphics to dynamically alter the main screening parameters with automatic update of the list of identified putative TFBS. PREDetector 2.0 also has the following additional options: (i) access to genome sequences from different databases, (ii) access to weight matrices from public repositories, (iii) visualization of the predicted hits in their genomic context, (iv) grouping of hits identified in the same upstream region, (v) possibility to store the performed jobs, and (vi) automated export of the results in various formats. PREDetector 2.0 is available at http://predetector.fsc.ulg.ac.be/. [less ▲]

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See detailAlejandro Zambra, la mirada del hijo
Licata, Nicolas ULiege

E-print/Working paper (2016)

Presentación general, en lenguas española y francesa, del escritor chileno Alejandro Zambra (1975) en el marco de su participación en el coloquio "Escribir, leer, pensar la literatura hoy" (ULg).

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See detailStatus and Coordination in Organizations
Lam, Wing Man Wynne ULiege

E-print/Working paper (2016)

Detailed reference viewed: 59 (9 ULiège)
See detailAttirer les demandeurs d'emploi dans des formations qualifiantes: l'apport de nouveaux outils
Fonder, Muriel; Mosty, Mathieu; Voz, Bernard ULiege et al

E-print/Working paper (2016)

Detailed reference viewed: 16 (1 ULiège)
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See detailMerger incentives under yardstick competition: A theoretical model
Teusch, Jonas ULiege

E-print/Working paper (2016)

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See detailThe smallholder development by remittances of migrants
Yao Namé, Juste Michel ULiege; Lebailly, Philippe ULiege

E-print/Working paper (2016)

The following pages report the results of our survey conducted among (Malian, Senegalese and Mauritanian) Soninké migrants during the period of 14th to 4 December 2015, living in the social residences of ... [more ▼]

The following pages report the results of our survey conducted among (Malian, Senegalese and Mauritanian) Soninké migrants during the period of 14th to 4 December 2015, living in the social residences of the former home Pinel (first home of migrant workers in France). This survey had to aim to discuss the implementation and use of a new tool to transfer the money in order to reduce use of informal channels, to promote financial inclusion, to finance smallholding and to develop entrepreneurship in rural by granting of credits medium or long term via Microfinance Institutions (IMF). [less ▲]

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See detailLE COMPROMIS ENTRE CULTURE NON PUNITIVE ET CULTURE JUSTE : ANALYSE DES SOUS-CULTURES DE SÉCURITÉ DES PATIENTS DANS UN SERVICE DE RADIOTHÉRAPIE
Kamto Kenmogne, Marius ULiege; Van Caillie, Didier ULiege; BOGA, Deniz ULiege et al

E-print/Working paper (2016)

The recent publication of the report "Medical error-the third leading causes of death in the US" (Makary & Daniel, 2016) has led to a renewed attention to the issue of patient safety in many developed ... [more ▼]

The recent publication of the report "Medical error-the third leading causes of death in the US" (Makary & Daniel, 2016) has led to a renewed attention to the issue of patient safety in many developed countries. The main issue involved is the role played by medical staff work in the occurrence of deaths from the medical care. According to Makary & Daniel, communication failures, misdiagnosis, bad judgments and inadequate skills have caused an average of 251,454 deaths per year in the United States in 2013. This report has taken the opposite view of the proponents of "No shame no blame" approach characterizing a non-punitive culture in which people are led to blame the system even though human responsibility is obvious. While the no-blame culture has often been presented as the success factor of an efficient safety /quality policy in medical settings (Amalberti et al., 2005; Woynar et al, 2007), discordant voices now stand to underline the limits of this approach (see eg Dekker & Breakey, 2016; Levitt, 2014 or Shojania & Dixon-Woods, 2013). These authors argue that the no-blame culture is difficult to implement in practice and suggest the implementation of a just culture that places more emphasis on individuals' behavior and performance and on their responsibility at work. In this context, this study examines – based on an in-depth longitudinal case study of a radiotherapy department that has implemented a reporting system for adverse events - the extent to which non-punitive culture and just culture can live together in the same organizational unit. By combining in-depth interviews with members of the quality team and a questionnaire survey administered to all staff, we evaluate the current safety subcultures in the service. The content analysis of the interviews and the treatment of questionnaires following the methodology of the Agency for Healthcare Research and Quality allows to see the emergence of three subcultures in the radiotherapy department studied: a reporting subculture, a non-punitive subculture and, to some extent, a just subculture. The study shows that the development of the safety culture in this department is based primarily on the establishment of a non-punitive subculture used as a way to encourage spontaneous reporting of adverse events. The reporting culture is therefore the more controlled dimension of the safety culture of the department. Concerning responsibility of workers, the study shows that they have no fear of punishment and are not even familiar with the term in the workplace. On the contrary, instead of a retributive just culture, the department has focused its safety culture on learning from mistakes and substantial just culture based on a system of worker participation in the preparation of procedures that prescribe the right way to work. [less ▲]

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See detailLa Cour pénale internationale et les entorses aux droits essentiels des personnes privées de liberté
Deprez, Christophe ULiege

E-print/Working paper (2016)

Ce texte propose un bref aperçu des faiblesses de la pratique de la Cour pénale internationale en matière de privation de liberté.

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See detailIT formulae for gamma target: mutual information and relative entropy
Arras, Benjamin ULiege; Swan, Yvik ULiege

E-print/Working paper (2016)

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See detailLARCH: A package for estimating multinomial, nested, and cross-nested logit models that account for semi-aggregate data
Newman, Jeffrey; Lurkin, Virginie ULiege; Garrow, Laurie

E-print/Working paper (2016)

We present a summary of important computational issues and opportunities that arise from the use of semi-aggregate data (where the explanatory data for choice scenarios are not necessarily unique for each ... [more ▼]

We present a summary of important computational issues and opportunities that arise from the use of semi-aggregate data (where the explanatory data for choice scenarios are not necessarily unique for each decision-maker) in discrete choice models. This data feature is commonly encountered with large transactional databases that have limited consumer information, such as itinerary choice modeling. We developed a software package called Larch, written in Python and C++, to take advantage of this kind of data to greatly speed the estimation of discrete choice model parameters. Benchmarking experiments against Stata (a commonly used commercial package) and Biogeme (a commonly used freeware package) based on an industry dataset for airline itinerary choice modeling applications shows that the size of the input estimation files are 50 to 100 times larger in Stata and Biogeme, respectively. Estimation times are also much faster in Larch; e.g., for a small itinerary choice problem, a multinomial logit model estimated in Larch converged in less than one second whereas the same model took almost 15 seconds in Stata and more than three minutes in Biogeme. For more complex discrete choice models, such as the ordered generalized extreme value model, estimation times were two seconds in Larch and four to five days in Biogeme. [less ▲]

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See detailTHE BEAT GENERATION Beat Generation - L’Anthologie Musicale - Hep Cats, Hipsters & Beatniks 1936-1962 (FREMEAUX & ASSOCIES)
Sacré, Robert ULiege

E-print/Working paper (2016)

The Beat Generation - L’Anthologie Musicale - Compte rendu Hep Cats, Hipsters & Beatniks 1936-1962 FREMEAUX & ASSOCIES

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See detailBIG NOISE - Un orchestre belge- Un nouvel hommage, en live, au JAZZ style NEW ORLEANS
Sacré, Robert ULiege

E-print/Working paper (2016)

Compte Rendu du 3è opus du groupe BIG NOISE, un orchestre belge qui remet à l'honneur le jazz traditionnel style NEW ORLEANS ( album IGLOO RECORDS)

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See detailL'environnement comme source d'inégalité? Pauvreté et désengagement citoyen dans la ville
Lejeune, Zoé ULiege

E-print/Working paper (2016)

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See detailThe np- Control Charts with the Guaranteed In-Control Performance
Faraz, Alireza ULiege; Heuchenne, Cédric ULiege

E-print/Working paper (2016)

In this paper, we evaluate the in-control performance of np-control charts with estimated parameters. We then apply the bootstrap method to adjust the control charts’ limits to guarantee the desired in ... [more ▼]

In this paper, we evaluate the in-control performance of np-control charts with estimated parameters. We then apply the bootstrap method to adjust the control charts’ limits to guarantee the desired in-control average run length (ARL0) value in monitoring stage. The adjusted limits ensure that ARL0 would take a value greater than the desired value (say, B) with a certain specified probability, that is Pr⁡(ARL_0>B)=1-ρ. We finally provide users with tables which with practitioners do not need to do bootstrapping Phase I data set to obtain the control limit thresholds. [less ▲]

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See detailWASP-86b and WASP-102b: super-dense versus bloated planets
Faedi, F.; Gómez Maqueo Chew, Y.; Pollacco, D. et al

E-print/Working paper (2016)

We report the discovery of two transiting planetary systems: a super dense, sub-Jupiter mass planet WASP-86b (\mpl\ = 0.82 $\pm$ 0.06 \mj, \rpl\ = 0.63 $\pm$ 0.01 \rj), and a bloated, Saturn-like planet ... [more ▼]

We report the discovery of two transiting planetary systems: a super dense, sub-Jupiter mass planet WASP-86b (\mpl\ = 0.82 $\pm$ 0.06 \mj, \rpl\ = 0.63 $\pm$ 0.01 \rj), and a bloated, Saturn-like planet WASP-102b (\mpl\ = 0.62 $\pm$ 0.04 \mj, \rpl\=1.27 $\pm$ 0.03 \rj). They orbit their host star every $\sim$5.03, and $\sim$2.71 days, respectively. The planet hosting WASP-86 is a F7 star (\teff\ = 6330$\pm$110 K, \feh\ = $+$0.23 $\pm$ 0.14 dex, and age $\sim$0.8--1~Gyr), WASP-102 is a G0 star (\teff\ = 5940$\pm$140 K, \feh\ = $-$0.09$\pm$ 0.19 dex, and age $\sim$1~Gyr). These two systems highlight the diversity of planetary radii over similar masses for giant planets with masses between Saturn and Jupiter. WASP-102b shows a larger than model-predicted radius, indicating that the planet is receiving a strong incident flux which contributes to the inflation of its radius. On the other hand, with a density of $\rho_{pl}$ = 3.24$\pm$~0.3~$\rho_{jup}$, WASP-86b is the densest gas giant planet among planets with masses in the range 0.05 $<M$_{pl}$<$ 2.0 \mj. With a stellar mass of 1.34 M$_{\odot}$ and \feh = $+$0.23 dex, WASP-86 could host additional massive and dense planets given that its protoplanetary disc is expected to also have been enriched with heavy elements. In order to match WASP-86b's density, an extrapolation of theoretical models predicts a planet composition of more than 80\% in heavy elements (whether confined in a core or mixed in the envelope). This fraction corresponds to a core mass of approximately 210\me\ for WASP-86b's mass of \mpl$\sim$260\,\me. Only planets with masses larger than about 2\mj\ have larger densities than that of WASP-86b, making it exceptional in its mass range. [less ▲]

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See detailÉcrire, lire, penser la littérature aujourd'hui
Licata, Nicolas ULiege

E-print/Working paper (2016)

En décembre 2015 se tenait à l'Université de Liège le colloque international « Écrire, lire, penser la littérature aujourd’hui », organisé en collaboration avec l’Université Paris 8. Au terme de la ... [more ▼]

En décembre 2015 se tenait à l'Université de Liège le colloque international « Écrire, lire, penser la littérature aujourd’hui », organisé en collaboration avec l’Université Paris 8. Au terme de la première journée quatre écrivains sud-américains ont participé à une table ronde intitulée « Théorie, critique et réception : les écrivains face aux savoirs », présidée par les professeurs Kristine Vanden Berghe (ULg) et Diego Vecchio (Paris 8). Il s’agit d’Alejandro Zambra, Hernán Ronsino, Sergio Chejfec et David Toscana. L’objectif était de recueillir l’avis de ces différentes personnalités quant aux grandes questions de la littérature : d’une part, en leur demandant de réagir aux affirmations controversées du critique Rafael Lemus, qui dénonce « l’autisme » de la littérature mexicaine, Kristine Vanden Berghe a interrogé les invités sur la manière dont ils conçoivent la relation entre la littérature et la réalité ainsi que sur l’hétérogénéité de la scène littéraire hispano-américaine ; de l’autre, Diego Vecchio a abordé avec eux la place du lecteur et les recoupements de la littérature avec les autres disciplines étudiant la réalité humaine, telles que la philosophie, la sociologie ou la psychologie. [less ▲]

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See detailThe Economic Forces Behind Deindustrialization: An Empirical Investigation
Van Neuss, Leif ULiege

E-print/Working paper (2016)

The purpose of this paper is to provide an in-depth study of deindustrialization and to systematically analyze the reasons why the world’s most economically successful countries have experienced a sharp ... [more ▼]

The purpose of this paper is to provide an in-depth study of deindustrialization and to systematically analyze the reasons why the world’s most economically successful countries have experienced a sharp decline in relative manufacturing employment over the last decades. A large strand of empirical literature on deindustrialization aims at quantifying the relative importance of the economic forces behind deindustrialization, especially of the ‘internal’ and ‘external’ factors. While this study does not contradict the widespread belief that internal factors are quantitatively more important in explaining deindustrialization in advanced countries taken as a whole, our results, based on both static and dynamic techniques and panel data on 18 OECD countries from 1977 to 2007, however suggest that the role of globalization may be revised upwards when resorting to appropriate and well-defined indicators of trade in manufactures. [less ▲]

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See detailThey will need land! The current land tenure situation and future land allocation needs of smallholder farmers in Cambodia
Diepart, Jean-Christophe ULiege

E-print/Working paper (2016)

The objective of this background paper is to provide a succinct description of the land tenure situation in Cambodia and, on that basis, discuss the needs smallholder farmers have for land, projected up ... [more ▼]

The objective of this background paper is to provide a succinct description of the land tenure situation in Cambodia and, on that basis, discuss the needs smallholder farmers have for land, projected up to the year 2030. The main problem it examines lies at the intersection between, on one hand, the demographic increase in the rural smallholder population and its associated need for land in the future (the demand side) and, on the other hand, the possibility offered by the different land tenure regimes to meet this demand (the supply side); the central question focuses on how supply can meet demand.By looking first at how much land is available under different categories (the supply side), the paper succinctly presents and maps the different land tenure regimes with updated statistics and discusses their main outcomes and shortcomings. On that basis, we present a preliminary assessment of land distribution by main land tenure systems in Cambodia. The land under cultivation by smallholders represents 19 percent of the total area of the national territory and is itself sub-divided into agricultural land with land titles (systematic land registration, 6 percent and land covered by the Order 01, 6 percent), under Social Land Concession arrangements (1 percent) and untitled (6 percent). The forest cover includes forest concessions (10 percent), Community Forestry (2 percent), Protected Areas and Protection Forests (20 percent) and an unclassified forest cover area (14 percent). Economic Land Concessions under operation represent 12 percent while cancelled concessions represent 2 percent of the total territory. The actual tenure of a large non-forested area (14 percent) remains undetermined and further updates are needed to shed light on this issue. The paper suggests that the central problem of the current Cambodian land reform is its ineffectiveness in coordinating the processes of land rights security and formalization in lowland and upland areas, although both regions are closely linked through land-driven migration movements that have intensified over the past 20 years. This has been particularly contentious given the fact that in a parallel process, and driven by a strong, state-based political economy, large land deals have been concentrated in the uplands of the entire country along processes that are exclusionary in nature. The overlap of competing land claims has created a widespread conflict situation in all uplands region of the country. By looking at how much land is needed for family farmers in the future (the demand side), the paper anticipates the land requirements of smallholder farmers by 2030 based on the projected demographic increase in the economically active population in rural Cambodia and on two sets of scenarios i) the transfer of unskilled labour from the agricultural to the secondary and tertiary sectors (industries and services) and ii) the provision of land for smallholder farmers. The analysis suggests that by the year 2030, the transfer of unskilled labour from agriculture to the secondary and tertiary sectors will lag behind the demographic increase in the active rural population. With 2015 as a baseline, the scenarios suggests that by 2030 smallholder farmers will need an additional land area ranging from 320,600 ha (+10 percent in relation to the actual area at the present time) to 1,962,400 (+64 percent), with an average desirable scenario of 1,622.000 ha based on an allocation of 1ha per active labourer (in accordance with the present social concession policy) and on the continuation of the present transfer rate of unskilled manpower from agriculture to the secondary and tertiary sectors (i.e. the transfer of 40.000 workers per year). So the question that needs to be formulated does not revolve around whether or not the rural population will need land in the future, but rather around how this can occur. Along these lines, the paper discusses different options, which are not mutually exclusive, to allocate this land without further impact on the forest cover: i) by redistribution of land from cancelled Economic Land Concessions, ii) through a firmer recognition of swidden agriculture inside Protected Areas, iii) through a far more ambitious Social Land Concession programme and iv) through further reform of the forest concession system. The paper concludes by stressing the need for relevant ministries to engage in open and constructive research-based discussion so that these options can materialize into concrete actions. [less ▲]

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See detailThymectomy in myasthenia gravis: removal of the defective 'sick' organ?
Geenen, Vincent ULiege

E-print/Working paper (2016)

As evidenced by this randomized trial, thymectomy clearly improved clinical status of patients with nonthymomatous myasthenia gravis (MG) and this study ends a very long controversy about the interest of ... [more ▼]

As evidenced by this randomized trial, thymectomy clearly improved clinical status of patients with nonthymomatous myasthenia gravis (MG) and this study ends a very long controversy about the interest of this surgical procedure mainly based on previous empirical observations. Although they are not discussed in this important paper, a series of experimental arguments reviewed in joint references argue for the idea that the clinical benefit of thymectomy is primarily due to the removal of the organ primarily implicated in MG pathophysiology. The thymus plays a central role in programming central immunological self-tolerance [1,2], and a thymus dysfunction is a primary event in the development of organ-specific autoimmunity [3,4]. It is therefore not surprising that the surgical removal of the primary 'sick' organ contributes to improve clinical outcomes and to reduce immunosuppressive therapy in MG patients. References: 1. Kamradt T, Mitchison NA. N Engl J Med 2001; 344:655-64. 2. Kyewski B, Klein L. Annu Rev Immunol 2006; 24:571-606. 3. Giraud M, Taubert R, Vandiedonck C, et al. Nature 2007; 448:934-7. 4. Geenen V, Bodart G, Henry S, et al. Front Neurosc 2013; 7:art 187. [less ▲]

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See detailMany-Body Spin Echo
Engl, Thomas; Urbina, Juan Diego; Richter, Klaus et al

E-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 ▲]

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See detailRepenser l'insensé : une analyse des catégories d'espace et de temps dans cinq autofictions néofantastiques hispano-américaines
Licata, Nicolas ULiege

E-print/Working paper (2016)

Le présent travail d’investigation incline la perspective sur la modalité fantastique de l’autofiction telle qu’elle s’est présentée au cours des vingt dernières années dans différents pays hispano ... [more ▼]

Le présent travail d’investigation incline la perspective sur la modalité fantastique de l’autofiction telle qu’elle s’est présentée au cours des vingt dernières années dans différents pays hispano-américains. Sur base d’un corpus représentatif, composé de cinq romans hispano-américains récents, à savoir Cómo me hice monja de César Aira (1993), Wasabi d’Alan Pauls (1994), El gran vidrio de Mario Bellatín (2007), Los ingrávidos de Valeria Luiselli (2011) et Los topos de Félix Bruzzone (2014), nous nous proposons d’y examiner la représentation particulière dont font l’objet les catégories d’espace et de temps. La trame de ces romans, de fait, semble délibérément entretenir un mouvement permanent et multiplier les espaces narratifs étranges (cimetières), marginaux (prisons et maisons closes entre autres) ou situés en périphérie des villes. L’autofiction comme le fantastique supposent une difficulté voire une impossibilité d’accéder à la vérité, c’est une des raisons pour lesquelles le premier confond faits et fictions et que le second privilégie une approche irrationnelle de la réalité. L’hypothèse de départ est la suivante : le type d’hybridation effectué respectivement dans ces genre et ce mode littérairess radicaliserait le postulat selon lequel la réalité « véritable » nous échappe. Nous sommes convaincus que les invraisemblances spatiales et temporelles de ces autofictions ne sont en aucun cas une forme d’évasion de la réalité ; au contraire, elles seraient un moyen de l’appréhender différemment et d’en communiquer certains aspects de façon innovante, essentiellement intuitive, en provoquant chez le lecteur une rupture épistémologique radicale. Outre le fait que le mode fantastique pourrait, pour les écrivains concernés, constituer un moyen d’explorer la notion d’identité au-delà de toute détermination spatiale et temporelle, ces autofictions d’un nouveau genre pourraient également, de façon plus générale, être le miroir de la société d’aujourd’hui, leurs excès et autres invraisemblances reflétant quelques limites du système actuel : le capitalisme néolibéral et la « tyrannie du je » qu’il encourage suscitent un rapport toujours plus superficiel à la réalité, réalité qu’il serait par ailleurs aujourd’hui plus que jamais difficile de remettre en question (Alberca 2007). Et si, dans un monde globalisé où l’ailleurs n’existe plus, s’interner dans d’autres espaces, dans d’autres temps, était devenu le meilleur moyen d’en parler ? [less ▲]

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See detailLa myopathie atypique des équidés
Votion, Dominique ULiege

E-print/Working paper (2016)

La myopathie atypique est une maladie saisonnière désormais bien présente en France et en Europe. Elle se caractérise par une destruction des muscles posturaux, respiratoires et du myocarde. Des études ... [more ▼]

La myopathie atypique est une maladie saisonnière désormais bien présente en France et en Europe. Elle se caractérise par une destruction des muscles posturaux, respiratoires et du myocarde. Des études récentes ont montré que la cause est une toxine présente dans les graines de certains arbres du genre « Acer » (érable) dont l'Acer pseudoplatanus ou érable sycomore. [less ▲]

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See detailWaveguides for walking droplets
Filoux, Boris ULiege; Hubert, Maxime ULiege; Schlagheck, Peter ULiege et al

E-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 ▲]

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See detailNouvelles normes sylvicoles pour les peuplements purs équiennes d'épicéa et de douglas
Perin, Jérôme ULiege; Hebert, Jacques ULiege; Lejeune, Philippe ULiege et al

E-print/Working paper (2016)

Ces documents rassemblent les tables de production (version 2016) représentant les nouvelles normes sylvicoles recommandées pour les peuplements purs équiennes d'épicéa commun et de douglas. Un ensemble ... [more ▼]

Ces documents rassemblent les tables de production (version 2016) représentant les nouvelles normes sylvicoles recommandées pour les peuplements purs équiennes d'épicéa commun et de douglas. Un ensemble de 10 tables de production est présentée pour chaque essence, associant deux densités de plantation (2.5 x 2 m et 2 x 2 m) et 5 classes de productivité (0 à IV). [less ▲]

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See detailLars Gustafsson, Strindberg et l'ordinateur [critique]
Dupont, Bruno ULiege

E-print/Working paper (2016)

Detailed reference viewed: 22 (1 ULiège)
See detailLe marché de la transmission d'entreprise en Wallonie: Un éclairage statistique
Guyot, Jean-Luc; Voz, Bernard ULiege; Wiliquet, Muriel ULiege

E-print/Working paper (2016)

Detailed reference viewed: 15 (2 ULiège)
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See detailEarly Detection of University Students in Potential Difficulty
Hoffait, Anne-Sophie ULiege; Schyns, Michael ULiege

E-print/Working paper (2016)

Using data mining methods, this paper presents a new means of identifying freshmen's profiles likely to face major difficulties to complete their first academic year. Academic failure is a relevant issue ... [more ▼]

Using data mining methods, this paper presents a new means of identifying freshmen's profiles likely to face major difficulties to complete their first academic year. Academic failure is a relevant issue at a time when post-secondary education is ever more critical to economic success. We aim at early detection of potential failure using student data available at registration, i.e. school records and environmental factors, with a view to timely and efficient remediation and/or study reorientation. For the sake of accuracy, we adapt three data mining methods, namely random forest, logistic regression and artificial neural network algorithms. Real data pertaining to undergraduates at the University of Liège (Belgium), illustrates our methodology. [less ▲]

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See detailDistances between probability distributions via characteristic functions and biasing
Azmoodeh, Ehsan; Arras, Benjamin; Poly, Guillaume et al

E-print/Working paper (2016)

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See detailStein operators for product distributions, with applications
Mijoule, Guillaume; Gaunt, Robert; Swan, Yvik ULiege

E-print/Working paper (2016)

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See detailAppropriability and the European Commission’s Android Investigation
Auer, Dirk ULiege

E-print/Working paper (2016)

This paper seeks to ascertain whether Google’s Android licensing terms, which are currently under scrutiny from the European Commission, could be excused under an innovation defense framework. The paper ... [more ▼]

This paper seeks to ascertain whether Google’s Android licensing terms, which are currently under scrutiny from the European Commission, could be excused under an innovation defense framework. The paper starts by analyzing Google’s business model with regard to its Android OS. It then identifies the Commission’s main concerns. It argues that Google is simply pursuing a sensible appropriation strategy. Finally, it puts forward a framework which hinges on the concept of “appropriability”, and tentatively applies it to Google’s behavior. [less ▲]

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See detailStein's method on the second Wiener chaos : 2-Wasserstein distance
Arras, Benjamin; Mijoule, Guillaume; Poly, Guillaume et al

E-print/Working paper (2016)

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See detailPublic Education Expenditures, Growth and Income Inequality
Artige, Lionel ULiege; Cavenaile, Laurent

E-print/Working paper (2016)

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Peer Reviewed
See detailThe Impact of Vulnerability and Resilience to Environmental Changes on Mobility Patterns in West Africa
Zickgraf, Caroline ULiege; Vigil Diaz Telenti, Sara ULiege; de Longueville, Florence et al

E-print/Working paper (2016)

From the Sahel to the coast, West Africa is experiencing a variety of climate change impacts, including sea level rise, soil salinization, floods, drought, and desertification, while simultaneously ... [more ▼]

From the Sahel to the coast, West Africa is experiencing a variety of climate change impacts, including sea level rise, soil salinization, floods, drought, and desertification, while simultaneously suffering from other forms of environmental degradation. Together, these environmental changes are significantly influencing migration patterns in and out of West Africa. This paper seeks to analyze vulnerability and resilience to environmental changes as they affect and are affected by mobility patterns in the region. We assert that the impact of environmental changes cannot be isolated from other political, social, economic, and demographic pressures that together drive human mobility. In a region where natural resources form the foundation of livelihoods and food security (fishing and agriculture), the relationship between environmental changes and socioeconomic vulnerabilities is of particular concern. This paper therefore draws from four distinct case studies to grasp the variegated and cumulative vulnerability and resilience among local populations as they relate to internal and intraregional migration. [less ▲]

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Peer Reviewed
See detailSuccess SMB:Leadership And Multidimensional Management. An exploratory Study.
Robert, Jocelyne ULiege; Renerken, Alexandre

E-print/Working paper (2016)

Some small and medium-sized businesses achieve incredible success: their financial indicators increase and their employment rate rises for several years without failing. How are these businesses lead? How ... [more ▼]

Some small and medium-sized businesses achieve incredible success: their financial indicators increase and their employment rate rises for several years without failing. How are these businesses lead? How is their leadership perceived? On which values do they rely? How can their strategy be described? What is their human resources policy? These are among the many questions we will attempt to examine. Indeed, one can be intrigued by the success of such businesses, as keeping afloat is not always easy. The very competitive environment in which these enterprises evolve can cause them to lose everything they had gathered in just a single day. In our challenging socio-economical context, where financial success remains fragile and larger companies are forced to lay off parts of their workforce, small and mediumsized businesses are a significant source of employment. They are more and more involved in the economic revival. It is therefore not surprising that many studies have examined the questions of business growth, performances or efficiency (Lescure, 1991 ; St Pierre, Janssen, Julien, Therrien, 2005 ; Colot, 2008 ; Witmeur, 2008a). The success of a company rests on many factors. Among these, leadership seems fundamental but is actually far from alone; other elements play their part, such as strategic orientation and partnerships. In order to understand these exceptional cases, we must consider a whole series of factors. Nowadays, when mention is made of a situation of growth, one can be tempted to visualize a fierce race driven only by financial results. As we will observe, this theory needs to be reviewed. Among the companies that have been interviewed, the ones which have the most significant growth are those that grant much importance to the human and relational factors. They organize the various facets of business management according to their specific situation. Situations are complex and, to a certain extent, different from one another. Our purpose was precisely to understand this complexity. [less ▲]

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See detailLe législateur wallon sommé de revoir le découpage des circonscriptions électorales
Bouhon, Frédéric ULiege

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 ▲]

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See detailCore Content Classification in General Practice Family medicine (3CGP) The Q-Codes user guide
Jamoulle, Marc ULiege

E-print/Working paper (2016)

user guide and general explanation pages for the Q-codes, a classification of managerial issues in General Practice / Family Medicine

Detailed reference viewed: 46 (4 ULiège)
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See detailL’aménagement forestier au Congo engendre-t-il plus de déforestation ?
Karsenty, Alain; Cerutti, P.; Doucet, Jean-Louis ULiege et al

E-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: 92 (6 ULiège)
See detailFive years on for Fukushima's IDPs: Life with radiological risk and without a community safety net
Hasegawa, Reiko ULiege

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 ▲]

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See detailSouthern Blues Night , Heerlen (Hollande) 19 mars 2016
Sacré, Robert ULiege

E-print/Working paper (2016)

Compte rendu de la Southern Blues Night annuelle de Heerlen aux Pays Bas, avec photos

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See detailNote on the numerical solution of the scalar Helmholtz equation in a nanotorus with uniform Dirichlet boundary conditions
Nguyen, Ngoc Duy ULiege; Evrard, Roger ULiege; Stroscio, Michael

E-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 ▲]

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See detailThe Smallest Salable Patent-Practicing Unit ('SSPPU') Experiment, General Purpose Technologies and the Coase Theorem
Petit, Nicolas ULiege

E-print/Working paper (2016)

In the last years, some Standard-Setting Organizations (“SSOs”) active in wireless communications have experimented new pricing principles for standard essential patents (“SEPs”). One of those experiments ... [more ▼]

In the last years, some Standard-Setting Organizations (“SSOs”) active in wireless communications have experimented new pricing principles for standard essential patents (“SEPs”). One of those experiments is the “SSPPU” rule. Under SSPPU, the licensing rates paid to owners of SEPs for the use of their technology shall reflect the “value that the functionality of the claimed invention or inventive feature…contributes to the value of the relevant functionality of the smallest saleable Compliant Implementation that practices the Essential Patent Claim”. This paper reviews the SSPPU experiment through the lenses of the Coase theorem. It finds that SSPPU interferes with the efficient operation of the price system, and is likely to reduce investment in socially beneficial activities, including in General Purpose Technologies (“GPTs”) which are key drivers of economic growth. [less ▲]

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See detailLa diversité des expressions culturelles au tourbillon du numérique
Vlassis, Antonios ULiege

E-print/Working paper (2016)

Detailed reference viewed: 38 (3 ULiège)
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See detailSome characterizations about Generalized Hölder-Zygmund Spaces Λ_{σ,N}^{α}(R^d)
Kreit, Damien ULiege; Nicolay, Samuel ULiege

E-print/Working paper (2016)

Generalized Hölder-Zygmund spaces $\Lambda_{\sigma, N}^{\alpha}(\R^{d})$ were recently introduced and are based on a generalization of Besov spaces. Under some conditions, generalized Hölder-Zygmund and ... [more ▼]

Generalized Hölder-Zygmund spaces $\Lambda_{\sigma, N}^{\alpha}(\R^{d})$ were recently introduced and are based on a generalization of Besov spaces. Under some conditions, generalized Hölder-Zygmund and Besov spaces are equal. It has been proved that most properties of classical Hölder-Zygmund spaces are held for spaces $\Lambda^{\sigma,\alpha}(\R^{d})$, which constitute a particular case of spaces $\Lambda_{\sigma, N}^{\alpha}(\R^{d})$ with $N_{j}=2^{j}$. The goal of the present document is to prove that most of these properties are kept for $\Lambda_{\sigma, N}^{\alpha}(\R^{d})$ spaces. [less ▲]

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Peer Reviewed
See detailA Comparison of Departure Time of Day Formulations
Lurkin, Virginie ULiege; Garrow, Laurie; Higgins, Matthew et al

E-print/Working paper (2016)

Airline passengers’ itinerary choices are influenced by many factors including carriers, prices, the number of connections, and departure times. This paper compares three different methods that have been ... [more ▼]

Airline passengers’ itinerary choices are influenced by many factors including carriers, prices, the number of connections, and departure times. This paper compares three different methods that have been used to model departure time of day preferences. The first is a discrete formulation that uses indicator variables to represent the hour of departure. The next two methods are based on a continuous formulation that uses a series of sine and cosine functions. One assumes departure time preferences over a 24-hour cycle and the other uses shorter cycle lengths that account for fewer departures during certain hours of the day. We compare models using itineraries in the Continental U.S. that are separated by two time zones. Although the discrete formulation fits the data better, the two continuous time of day formulations are preferred as they provide more intuitive predictions and require fewer parameters. Results between the two continuous time of day formulations are similar but differ in how strongly they weight itineraries that depart very early or very late in the day. Based on empirical results, we recommend testing both 24-hour and less than 24-hour cycle lengths for a particular dataset. [less ▲]

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See detailContinuous 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 Type
Lurkin, Virginie ULiege; Garrow, Laurie; Higgins, Matthew et al

E-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 ▲]

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See detailPolitique de la Ville : Dynamisation des coeurs de ville
Bastin, Florine ULiege; Lacroix, Gilles; May, Xavier et al

E-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 ▲]

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See detailStructure et négativité dans la Préface de 1961 à L'Histoire de la folie
Oulc'hen, Hervé ULiege

E-print/Working paper (2016)

Detailed reference viewed: 18 (2 ULiège)
Peer Reviewed
See detailHistoires de rayons verts : phénomène physique, critique de cinéma, spectateurs mélancoliques
Barbion, Sébastien ULiege

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 ▲]

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See detailRésumé de la thèse: Rôle du climat et de la compétition interspécifique dans la limitation de l'aire d'invasion d'Ambrosia artemisiifolia L. en Europe de l'Ouest
Ortmans, William ULiege

E-print/Working paper (2016)

The invasion continuum is classically described from a temporal point of view, where a species overcomes a defined number of barriers linked to the environment. First, an exotic species has to get through ... [more ▼]

The invasion continuum is classically described from a temporal point of view, where a species overcomes a defined number of barriers linked to the environment. First, an exotic species has to get through the geographical barrier, in order to be introduced in the new area. When introduced, the species has to face the new environmental conditions and survive to start the naturalization phase. When the environmental barrier is overcome, i.e. when the species is able to reproduce and its populations are self-sufficient, it has to overcome the dispersal barrier to spread in the ecosystem and finally become invasive. Within a given continent, a species could have overcome a variable number of barriers depending on the considered area. One can observe depending on the geographical zone some non-naturalized populations that cannot survive without a human introduction of new propagules, some naturalized populations that are not invasive yet, and some invasive populations. This geographical variation may be the result of a variation of the environmental conditions at the continental scale. The common ragweed (Ambrosia artemisiifolia L.) invasion in Western Europe is a good opportunity to study this aspect of the invasion biology. The invasion history and the species distribution are well documented, and highlight a geographical variation of the invasion dynamic. This is particularly clear in Western Europe, where lies a contrast between the highly invaded zone of the South of France, and the areas that are farther north (e.g. the North of France, Belgium, and the Netherlands). In this work, the general objective was to determine if this situation will remain stable or not, by assessing if the local climate and the interspecific competition were liming the species expansion northward. In order to answer this general objective, four different questions were asked: 1) Is the climate and/or the interspecific competition causing a plant performance variation within the different areas of the introduced range in Western Europe?; 2) Is the local climate allowing the establishment and the reproduction of newly introduced populations north to the current invaded range, in an agricultural habitat?; 3) What is the role of the morphological variability of the seeds in the invasion of areas experiencing rigorous climatic conditions?; and 4) What is the role of the priority effect in the species establishment? The results showed that once introduced in an agricultural habitat outside the current invaded range, the species was able to establish self-sustaining populations. On average, each plant produced a number of offspring equal to 273 ± 18.4 (mean ± standard error). In ruderal habitats, populations already exist in Belgium and in the South of The Netherlands, and are able to produce a high quantity of seeds: on average, measured plants carried 222± 32.0 seeds. The measured plant performances were similar to those measured within the invaded area. No limit to the colonization of the area beyond the current invaded range was found in this study. The local climate and the interspecific competition did not appear to limit the naturalization of the species in the studied area, which is located north to the current invaded range, in agricultural or ruderal situations. This work highlighted the obsolescence of the species status in Belgium, and illustrated the dynamic aspect of the invasion. The results showed the importance of the temporality in the colonization of disturbed habitats. When the species started its development a few weeks before the rest of the community, its performance was decupled, and this increase was higher than the one other Asteraceae ruderals species showed in the same position: its above ground biomass was 30.5 ± 1.94 times higher, and the number of flower heads 570 ± 160 times more important.. The high variability of the species observed all along this work is probably playing an important role in the invasion success. The high variability of the seeds morphology can widen the range of environmental conditions of the habitats the species is able to colonize. In addition, the plasticity of the morphological traits of the plant in response to climate and competition appeared to allow the species to maintain a good performance, even in stressful conditions. The results of this work suggest an invasion potential north to the current invaded area in Western Europe. In this uncertain situation, it appears critical to implement structure allowing the early detection of the species. This early detection may allow the eradication of the species before that the invasion was as problematic as in France. Sensitization campaigns of the agricultural sector should be encouraged in Belgium in order to avoid new occurrence of the species in field to be overlooked. These measures could allow the dispersion to remain a limiting factor for the invasion process in Belgium. [less ▲]

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See detailHedge fund styles and macroeconomic uncertainty
Platania, Federico ULiege; Lambert, Marie ULiege

E-print/Working paper (2016)

This paper examines the dynamic trading strategies implemented by hedge fund managers using a Kalman filter of hedge fund betas across styles. We further investigate the risk drivers of dynamic trades ... [more ▼]

This paper examines the dynamic trading strategies implemented by hedge fund managers using a Kalman filter of hedge fund betas across styles. We further investigate the risk drivers of dynamic trades, examining which conditioning/macroeconomic variables strongly lead the time variation in fund trades. We report the significance of macroeconomic factors such as interest rates, dividend yield, GDP growth and US unemployment. We show that hedge fund managers do control the intensity of their exposures according to economic uncertainty and that differences between up- and down-market regimes can be observed. Commonly, Hedge funds tend to dislike high-dividend paying stocks. Besides, all hedge fund styles are shown to display pro-cyclical exposures towards directional equity factors as well as credit and liquidity risks. Small growth stocks, however, are revealed to be crisis investments whose allocation increases with unemployment, inflation or volatility. As volatility increases, the value of growth options embedded into growth stocks indeed increases. Growth stocks are shown to hedge market reversals and volatility. The outperformance of growth companies in recessions might also relate to their cost flexibility. Allocation to small stocks embed strong micro risks and might also constitute a hedge in economic slowdowns. This might explain why some funds with such a particular investment focus appear to be countercyclical. [less ▲]

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See detailSéminaire "Storytelling": note d'intention
Claisse, Frédéric ULiege; Huppe, Justine ULiege

E-print/Working paper (2016)

A l'origine, cette note constitue un document de travail à destination des étudiant-e-s de Masters en langues et lettres françaises romanes, à finalité approfondie, qui ont choisi le module « Storytelling ... [more ▼]

A l'origine, cette note constitue un document de travail à destination des étudiant-e-s de Masters en langues et lettres françaises romanes, à finalité approfondie, qui ont choisi le module « Storytelling » dans le cadre du séminaire de littérature (XIXe-XXIe) : Histoire, société, institutions, discours (2e quadrimestre, année 2015-2016). Elle reprend les hypothèses et grandes lignes du projet de recherche (FRS-FNRS) "Storyfic", qui vise à évaluer l'impact du storytelling sur l'écriture de fiction contemporaine. [less ▲]

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Peer Reviewed
See detailAnalyse comparative des résultats économiques de la production rizicole dans les pays de la CEPGL
Furaha Mirindi, Germaine ULiege; Mastaki, Jean-Luc; Lebailly, Philippe ULiege

E-print/Working paper (2016)

Cet article fait une analyse comparative des résultats économiques de la production rizicole durant la saison B 2014 dans les trois pays de la CEPGL qui sont la République Démocratique du Congo, le Rwanda ... [more ▼]

Cet article fait une analyse comparative des résultats économiques de la production rizicole durant la saison B 2014 dans les trois pays de la CEPGL qui sont la République Démocratique du Congo, le Rwanda et le Burundi. L’approche comparative permet de trouver les explications des différences des résultats en partie dans les politiques mises en oeuvre dans chaque pays. Les enquêtes ont été menées dans la plaine de la Ruzizi partagée entre les trois pays auprès de 240 producteurs du riz choisi à partir de la méthode des quotas sur la base d'une stratification des exploitations rizicoles. Dans le site congolais (où il est plus difficile d’accéder aux intrants et crédits), les coûts de production d’1kg de paddy sont les plus élevés avec une fonction de production y=0,034x+0,053z+0,422 et le rendement le plus bas (2698kgs). Par contre, dans les sites burundais et rwandais où l’Etat intervient dans l’approvisionnement en intrants et particulièrement dans le site rwandais, l’accès aux crédits, les fonctions de production sont respectivement de y=0,024x+0,031z+0,297 et y=0,017x+0,023z+0,269 avec des rendements de 3962kgs et 5339kgs dans le même ordre. Les coûts de production supportés sur un hectare rizicole ou encore pour la production d’une tonne de paddy varient selon le pays car ils dépendent de la valeur des intrants utilisés et des autres charges de structures. Ils varient ainsi de 1139,4USD à 1354,5USD/ ha et de 269 à 422USD/tonne. [less ▲]

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See detailNonparametric control charts: economic statistical design
Marcos Alvarez, Alejandro ULiege; Heuchenne, Cédric ULiege; Faraz, Alireza ULiege

E-print/Working paper (2016)

This paper studies economic statistical designs (ESD) for nonparametric control charts based on the sign and Wilcoxon tests. The main advantage of the procedures is that, except for the tested location ... [more ▼]

This paper studies economic statistical designs (ESD) for nonparametric control charts based on the sign and Wilcoxon tests. The main advantage of the procedures is that, except for the tested location parameter, they do not use either any parametric distribution for the quality characteristic or any information about the possible involved parameters, neither in the in-control nor in the out-of-control state. This is made possible by minimizing a cost function specified independently of these quantities. Unlike the ESD for the $\overline{x}$ chart, the resulting charts designs are robust to changes of the distributions of the observations (in control or out of control), provide reliable statistical guarantees when the $\overline{x}$ chart ESD does not and stay competitive even when the strong assumptions of the $\overline{x}$ chart ESD are fully satisfied. These new techniques can therefore be applied to a definitely wider class of problems and their designs may stay constant over time without losing performance. [less ▲]

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See detailOnline Learning for Strong Branching Approximation in Branch-and-Bound
Marcos Alvarez, Alejandro ULiege; Wehenkel, Louis ULiege; Louveaux, Quentin ULiege

E-print/Working paper (2016)

We present an online learning approach to variable branching in branch-and-bound for mixed-integer linear problems. Our approach consists in learning strong branching scores in an online fashion and in ... [more ▼]

We present an online learning approach to variable branching in branch-and-bound for mixed-integer linear problems. Our approach consists in learning strong branching scores in an online fashion and in using them to take branching decisions. More specifically, numerical scores are used to rank the branching candidates. If, for a given variable, the learned approximation is deemed reliable, then the score for that variable is computed thanks to the learned function. If the approximation is not reliable yet, the real strong branching score is used instead. The scores that are computed through the real strong branching procedure are fed to the online learning algorithm in order to improve the approximated function. The experiments show promising results. [less ▲]

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See detailOn the processing of red pigment by late mousterian Neanderthals in Ormesson, Seine-et-Marne, France, 47000 years ago
Salomon, Hélène ULiege; Bodu, Pierre; Geurten, Stéphanie et al

E-print/Working paper (2016)

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See detailBispecial factors in the Brun S-adic system
Labbé, Sébastien ULiege; Leroy, Julien ULiege

E-print/Working paper (2016)

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Peer Reviewed
See detailFundamentals for an International Typology of Social Enterprise Models
Defourny, Jacques ULiege; Nyssens, Marthe

E-print/Working paper (2016)

Detailed reference viewed: 95 (9 ULiège)
See detailRossano Rosi, "Hanska": un roman en "feuilleté"
Demoulin, Laurent ULiege

E-print/Working paper (2016)

Compte rendu du beau roman de Rossano Rosi "Hanska"

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See detailMarket efficiency and hedge fund trading strategies
Platania, Federico ULiege; Lambert, Marie ULiege; Papageorgiou, Nicolas

E-print/Working paper (2016)

Stock and option markets can at times reflect differing information. We identify three reasons for the presence of these periods of "disagreement" between the cash and derivatives markets: 1) high ... [more ▼]

Stock and option markets can at times reflect differing information. We identify three reasons for the presence of these periods of "disagreement" between the cash and derivatives markets: 1) high volatility and noise trading; 2) high level of risk aversion; 3) speculation versus hedging trades. This paper investigates the role that hedge funds, a proxy for sophisticated investors, play in the price discovery process between stock and option markets and the disagreement/agreement periods. We observe that a disparity in information between the two markets is often associated with deleveraging in directional exposures and reversal strategies. Posterior to the event, active tactical asset allocation in small and value factor investing takes place. We investigate four specific macro events which resulted in significant rebalancing by hedge fund manegers: the Thai Baht depreciation, the Dot-com bubble, the credit crunch and the Nasdaq correction. [less ▲]

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See detailHST-Juno synergistic approach of Jupiter's magnetosphere and ultraviolet auroras
Grodent, Denis ULiege; Bonfond, Bertrand ULiege; Gérard, Jean-Claude ULiege et al

E-print/Working paper (2016)

Jupiter's system is not only fundamental to our understanding of the solar system but also of planetary systems around other stars as well as more distant astrophysical bodies, not accessible to a ... [more ▼]

Jupiter's system is not only fundamental to our understanding of the solar system but also of planetary systems around other stars as well as more distant astrophysical bodies, not accessible to a detailed investigation. Fully exploiting any rare opportunity to explore the Jovian system through synergistic observations is thus critical, as it will impact significantly across wider astronomical studies. Such an exceptional opportunity will occur in Cycle 24, when the NASA Juno spacecraft will achieve its prime mission around Jupiter. Since Juno will literally fly through the auroral acceleration regions, the combination of HST auroral observations with Juno in situ measurements will allow us to finally unravel the origins and consequences of Jupiter's powerful and highly variable ultraviolet auroras. This occasion has never occurred before and is unlikely to ever repeat. Juno will address key scientific issues related to unexplored regions of the Jovian magnetosphere. The auroral signatures associated with these magnetospheric processes will be precisely observed with STIS and COS. This program responds to the UV initiative and is only possible during Cycle 24. Indeed, HST is the only observatory capable of making these high spatial and temporal resolution FUV observations during the Juno mission. This ambitious campaign will yield high-impact results and significantly augment the science return of the NASA Juno mission. [less ▲]

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See detailFisheries reforms and right-based fisheries: insights from community fisheries across Cambodia
Chap, Sreyphea; Touch, Panha; Diepart, Jean-Christophe ULiege

E-print/Working paper (2016)

The working paper uses a right-based approach to examine recent wave of reforms in the Cambodian fisheries sector and what these reforms mean for community fisheries management.

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See detailALPI project - Green Incentives : Belgian and European Aspects
Bourgeois, Marc ULiege; Vanrykel, Fanny ULiege; Defoy, Xavier ULiege

E-print/Working paper (2016)

Finance is one of the main critical issues for the development of a low-carbon society especially during times of economic recession. Closing this green investment gap will require policy intervention ... [more ▼]

Finance is one of the main critical issues for the development of a low-carbon society especially during times of economic recession. Closing this green investment gap will require policy intervention. The ALPI project will concentrate on promoting relevant ins truments to accelerate the transition towards a low-carbon society by demonstrating the performance and impact of policy instruments on economic, government budget and environmental aspects. [less ▲]

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See detailFeasibility-oriented Branching Strategies for Global Optimization
Gerard, Damien ULiege; Köppe, Matthias; Louveaux, Quentin ULiege

E-print/Working paper (2016)

We study the spatial Brand-and-Bound algorithm for the global optimization of nonlinear problems. In particular we are interested in a method to find quickly good feasible solutions. Most spatial Branch ... [more ▼]

We study the spatial Brand-and-Bound algorithm for the global optimization of nonlinear problems. In particular we are interested in a method to find quickly good feasible solutions. Most spatial Branch-and-Bound-based solvers use a non global solver at a few nodes to try to find better incumbents. We show that it is possible to improve the branching rules and the node priority by exploiting the solutions from the non global solver. We also propose several smart adaptive strategies to choose when to run the non global solver. We show that despite the time spent in solving many more NLP problems in the nodes, the new strategies enable the algorithm to find the first good incumbents faster and to prove the global optimality faster. Numerous easy, medium size as well as hard NLP instances from the Coconut library are benchmarked. All experiments are run using the open source solver Couenne. [less ▲]

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See detailChinese State Capitalism and Western Antitrust Policy
Petit, Nicolas ULiege

E-print/Working paper (2016)

Enthused by China’s conversion to the free market system in 1978 and its adoption of Western-style market institutions, the world has spent the last few decades turning a blind eye to China’s real ... [more ▼]

Enthused by China’s conversion to the free market system in 1978 and its adoption of Western-style market institutions, the world has spent the last few decades turning a blind eye to China’s real “governance” problem: that a shadow Party-State system permeates all branches of the economy. Whatever Washington-consensus style institutions are put in place, whatever State Owned Enterprise (“SOE”) reform is introduced, corporate and market governance occur under the rule of the Chinese Communist Party (“CCP”). And the CCP’s guidebook is the Leninist command that the whole of society shall be run as “single country-wide State syndicate”. This paper contends that China’s syndicated economic organization is akin to a “supertrust”, and that this creates conditions that are conducive to antitrust problems to which the Western world must awaken. In this context, this paper advances that the antitrust regulators of North America, Europe and elsewhere should take two simple, pragmatic steps under merger control and antitrust rules. In merger review, antitrust agencies should treat all SOEs and Privately Owned Enterprises (POEs) with a CCP cell as one unitary group and undertake a thorough competitive assessment of transactions on this basis. In addition, antitrust cases involving Chinese firms should be investigated on the default assumption that there is an underlying coordination scheme among them. [less ▲]

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See detailSize and Value Matter But Not the Way You Thought
Lambert, Marie ULiege; Fays, Boris ULiege; Hübner, Georges ULiege

E-print/Working paper (2016)

We propose a simple but fundamental methodological change to Fama and French (1993) factor construction procedure. Consistent with Lambert and Hübner (2013) sequential sorting procedure to classify stocks ... [more ▼]

We propose a simple but fundamental methodological change to Fama and French (1993) factor construction procedure. Consistent with Lambert and Hübner (2013) sequential sorting procedure to classify stocks, our methodology controls ex ante for pricing errors produced by multifactor models. Our size and value factors deliver less specification errors when used to price portfolios, especially regarding low size and high B/M stocks. Furthermore, this alternative framework generates much stronger “turn-of-the-year” size and “through-the-year” book-to-market effects than conventionally documented. The factors also display a slight competitive advantage on the taxonomy of low turnover market anomalies defined by Novy-Marx and Velikov (2015). [less ▲]

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Peer Reviewed
See detailIntensification of smallholder agriculture in Rwanda: scenarios and challenges towards a sustainable transformation
Musabanganji, Edouard ULiege; Karangwa, Antoine; Lebailly, Philippe ULiege

E-print/Working paper (2016)

This paper clarifies the path that Rwanda took in the quest for a modern, intensive, productive and market-oriented agriculture. The facts presented here have been collected by means of documentation that ... [more ▼]

This paper clarifies the path that Rwanda took in the quest for a modern, intensive, productive and market-oriented agriculture. The facts presented here have been collected by means of documentation that led to the review of different publications including published papers and government and development partners’ reports. The paper shows that an adequate policy and institutional environment has been created by various socio-economic, institutional and agriculture-led reforms launched since the early 2000s. The literature review reveals that impressive results have been recorded in regard to smallholder agriculture intensification. In addition, the theoretical model for progressive smallholder agriculture transformation helped to show that most of the smallholders grouped in cooperatives are at the 'semi-commercial smallholders' stage while only a few are at the 'commercial smallholders' and 'advanced farmers' stages. This study also examines various challenges that hamper the sustainable intensification of smallholder agriculture at both institutional, community and smallholder level. It suggests some policy actions to be put forward by the government and other agriculture sector development partners to address those challenges. [less ▲]

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See detailAlmost sure approximations in H older norms of a general stochastic process de ned by a Young integral
Ayache, Antoine; Esser, Céline ULiege; Qidi, Peng

E-print/Working paper (2016)

We focus on a stochastic process $\{Y(t)\}_{t\in [0,v]}$ defined by a pathwise Young integral of a general form. Thanks to the Haar basis, we connect the classical method of approximation of $\{Y(t)\}_{t ... [more ▼]

We focus on a stochastic process $\{Y(t)\}_{t\in [0,v]}$ defined by a pathwise Young integral of a general form. Thanks to the Haar basis, we connect the classical method of approximation of $\{Y(t)\}_{t\in [0,v]}$ through Euler scheme and Riemann-Stieltjes sums with a new approach consisting in the use of an appropriate series representation of $\{Y(t)\}_{t\in [0,v]}$. This representation is obtained through a general compactly supported orthonormal wavelet basis. An advantage offered by the new approach with respect to the classical one is that a better almost sure rate of convergence in H\"older norms can be derived, under a general Gaussian condition. Also, this improved rate turns out to be optimal in some situations; typically, when the integrator associated to $\{Y(t)\}_{t\in [0,v]}$ is a fractional Brownian motion of an arbitrary Hurst parameter, and the integrand is a deterministic nowhere vanishing function with an invariant H\"older regularity large enough. [less ▲]

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See detailTargeted Advertising and Consumer Information
Broos, Sébastien ULiege

E-print/Working paper (2016)

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See detailLong-term care social insurance. How to avoid big losses?
Klimaviciute, Justina ULiege; Pestieau, Pierre ULiege

E-print/Working paper (2016)

Long-term care (LTC) needs are expected to rapidly increase in the next decades and at the same time the main provider of LTC, namely the family is stalling. This calls for more involvement of the state ... [more ▼]

Long-term care (LTC) needs are expected to rapidly increase in the next decades and at the same time the main provider of LTC, namely the family is stalling. This calls for more involvement of the state that today covers less than 20% of these needs and most often in an inconsistent way. Besides the need to help the poor dependent, there is a mounting concern in the middlec lass that a number of dependent people are incurring costs that could force them to sell all their assets. In this paper we study the design of a social insurance that meets this concern. Following Arrow (1963), we suggest a policy that is characterized by complete insurance above a deductible amount. [less ▲]

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See detailMoral Hazard in VC Finance: More Expensive than You Thought
Lambert, Marie ULiege; Tennert, Julius; Burghof, Hans-Peter

E-print/Working paper (2016)

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See detailOlder men’s labor force participation in Belgium
Jousten, Alain ULiege; Lefebvre, Mathieu ULiege

E-print/Working paper (2016)

We provide an overview of the institutional framework in Belgium that is of relevance for labor market participation and retirement decision at older ages. We then describe key labor market indicators ... [more ▼]

We provide an overview of the institutional framework in Belgium that is of relevance for labor market participation and retirement decision at older ages. We then describe key labor market indicators using data from the Labour Force Survey (LFS) over the period 1983-2013 and also present trends in participation in (early-) retirement routes. Next, we explore how the types of jobs in the country have changed over time, both in terms of their “quality” and the “quantity” of work involved. [less ▲]

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See detailNonlinear dynamical tunneling of optical whispering gallery modes in the presence of a Kerr nonlinearity
Shim, Jeong -Bo ULiege; Schlagheck, Peter ULiege; Hentschel, Martina et al

E-print/Working paper (2015)

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See detailIdentification of the concepts at stake during a consultation. Clinical exercises
Jamoulle, Marc ULiege

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 ▲]

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See detailFestivals Acadiens et Creoles
Sacré, Robert ULiege

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 night

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See detailWhy Did the Industrial Revolution Start in Britain?
Van Neuss, Leif ULiege

E-print/Working paper (2015)

The main goal of this paper is to provide an integrated overview of the literature devoted to identifying the causes of the British industrial revolution. Why did the industrial revolution, a fascinating ... [more ▼]

The main goal of this paper is to provide an integrated overview of the literature devoted to identifying the causes of the British industrial revolution. Why did the industrial revolution, a fascinating and multifaceted event which brought about modern economic growth, occur in eighteenth-century Britain? This question has animated a lot of discussions among scholars and is still nowadays heatedly debated in the literature. This debate is reflected in the large spectrum of theories which aim at explaining the true origins of the British industrialization. The paper first sheds light on a rising debate concerning the evolution of British incomes per capita before the British industrial revolution and the “Great Divergence”. The paper then investigates the proposed causes of the British industrialization, aggregating them into seven broad categories, i.e. (1) geography and natural resources, (2) demography, (3) agricultural progress, (4) demand-side factors, (5) trade and empire, (6) institutional and political factors, (7) science, technology, and human capital. [less ▲]

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See detailFrom 'Risk Communication' to Participatory Radiation Risk Assessment
Shirabe, Masashi; Fassert, Christine; Hasegawa, Reiko ULiege

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 ▲]

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See detailLarge neighborhood search for multi-trip vehicle routing
François, Véronique ULiege; Arda, Yasemin ULiege; Crama, Yves ULiege et al

E-print/Working paper (2015)

We consider two large neighborhood search approaches for the multi-trip vehicle routing problem, where each vehicle can perform several routes during the working shift to serve a set of customers. The ... [more ▼]

We consider two large neighborhood search approaches for the multi-trip vehicle routing problem, where each vehicle can perform several routes during the working shift to serve a set of customers. The problem specifically arises when customers are close to each other and/or when the demands are large. A common approach in the literature consists in solving this problem by mixing vehicle routing heuristics with bin packing routines to assign routes to vehicles. We compare this approach with the use of specific operators designed to tackle the routing and the assignment aspects of the problem simultaneously. We provide several best known solutions for benchmark instances. At the end of the work, we give insights about the proposed algorithm configurations by analyzing the behavior of several method components. [less ▲]

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Peer Reviewed
See detailQui 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 national
Rosoux, Géraldine ULiege

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.

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See detail25 novembre 2015 : cent ans de Relativité
De Rop, Yves ULiege

E-print/Working paper (2015)

La théorie proposée par Einstein au début du XXe siècle porte bien mal son nom; car si, historiquement, l'accent fut mis d'abord sur la relativité de certaines notions (en particulier, la mesure de l ... [more ▼]

La théorie proposée par Einstein au début du XXe siècle porte bien mal son nom; car si, historiquement, l'accent fut mis d'abord sur la relativité de certaines notions (en particulier, la mesure de l'intervalle de temps écoulé entre deux événements donnés), on a compris par la suite qu'elle reposait plus fondamentalement sur l'existence de quantités absolues, c'est-à-dire, dont la mesure est identique pour tous les observateurs, quel que soit leur état de repos ou de mouvement. Ces quantités sont inconnues de la mécanique de Newton, laquelle ne reconnaît qu'un seul invariant : le temps. Ce texte cherche à retracer, avec un minimum de formalisme, comment s'est imposé un nouveau cadre géométrique pour la physique, dominé par cette exigence d'invariance des mesures spatio-temporelles et intégrant une description révolutionnaire de la gravitation. [less ▲]

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See detailElmore D. L'intégrale Frémeaux et Ass.
Sacré, Robert ULiege

E-print/Working paper (2015)

Compte rendu Coffret 5 CDs + livret . La Wallon et le Blues , un mariage réussi

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See detailMars nighttime aurora
European Space Agency, ESA/ATG medialab; Gérard, Jean-Claude ULiege; Soret, Lauriane ULiege

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 literature

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Peer Reviewed
See detailRebates and Article 102 TFEU: The European Commission's Duty to Apply the Guidance Paper
Petit, Nicolas ULiege

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 ▲]

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See detailLes Nouveaux Réactionnaires : mythe ou réalité ?
Durand, Pascal ULiege; Sindaco, Sarah ULiege; Devecchio, Alexandre

E-print/Working paper (2015)

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Peer Reviewed
See detailL’accompagnement de projets d’entrepreneuriat social dans leurs phases initiales
Dufays, Frédéric ULiege; Lovens, Caroline ULiege; Mertens de Wilmars, Sybille ULiege

E-print/Working paper (2015)

L’entrepreneuriat social connaît depuis quelques années un intérêt croissant. Mais pour les entrepreneurs sociaux, concilier les dimensions sociales et économiques demande de faire face à des défis bien ... [more ▼]

L’entrepreneuriat social connaît depuis quelques années un intérêt croissant. Mais pour les entrepreneurs sociaux, concilier les dimensions sociales et économiques demande de faire face à des défis bien spécifiques. Ne faut-il donc pas favoriser un accompagnement sur-mesure et modulable ? C’est le défi qu’a choisi de relever en Belgique francophone le programme ImpulCera en proposant aux entrepreneurs sociaux un soutien financier pour la réalisation d’une étude de faisabilité et pour le lancement de leur projet. Le présent article présente quelques résultats de l’évaluation de ce programme ainsi que les enseignements qui peuvent en être dégagés. [less ▲]

Detailed reference viewed: 256 (8 ULiège)
See detailPour analyser la qualité des médicaments
Ziemons, Eric ULiege

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 ▲]

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