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See detailCompte rendu de Baetens (Jan), Pour en finir avec la poésie dite minimaliste
Demoulin, Laurent ULg

E-print/Working paper (2014)

Il s'agit d'un compte rendu de l'ouvrage de Jan Baetens intitulé "Pour en finir avec la poésie dite minimaliste" paru sur le site Contextes à la page http://contextes.revues.org/5982.

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See detailRetrouvailles à vélo avec Dick Annegarn
Demoulin, Laurent ULg

E-print/Working paper (2014)

Le nouveau CD de Dick Annegarn, Vélo va (2014), offre à son auditeur, à travers un bel échantillon de dix chansons, un aperçu des différentes facettes de l’art de l’auteur-compositeur-interprète.

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See detailSome misunderstood or unknown tricks (IX) (LaTeX)
Merciadri, Luca ULg

E-print/Working paper (2014)

We describe here how to display date & time in a standard format, write (draw) dash integrals, number rows in tables, use unhabitual punctuation marks: interrobang and percontation point, draw dependency ... [more ▼]

We describe here how to display date & time in a standard format, write (draw) dash integrals, number rows in tables, use unhabitual punctuation marks: interrobang and percontation point, draw dependency arrows, distinguish between ConTeXt, LuaTeX, teTeX and XeTeX. The last section gives a LaTeX-related crossword puzzle. [less ▲]

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See detailEn attendant Toussaint
Demoulin, Laurent ULg

E-print/Working paper (2014)

Présentation et analyse de deux courtes pièces, Rideau et Ni l'un ni l'autre, écrites par Jean-Philippe Toussaint en 1981, quand il était un jeune auteur inconnu influencé par Samuel Beckett.

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See detailWASP-104b and WASP-106b: two transiting hot Jupiters in 1.75-day and 9.3-day orbits
Smith, A. M. S.; Anderson, D. R.; Armstrong, D. J. et al

E-print/Working paper (2014)

We report the discovery from the WASP survey of two exoplanetary systems, each consisting of a Jupiter-sized planet transiting an 11th magnitude (V) main-sequence star. WASP-104b orbits its star in 1.75 d ... [more ▼]

We report the discovery from the WASP survey of two exoplanetary systems, each consisting of a Jupiter-sized planet transiting an 11th magnitude (V) main-sequence star. WASP-104b orbits its star in 1.75 d, whereas WASP-106b has the fourth-longest orbital period of any planet discovered by means of transits observed from the ground, orbiting every 9.29 d. Each planet is more massive than Jupiter (WASP-104b has a mass of 1.27±0.05 MJup, while WASP-106b has a mass of 1.93±0.08 MJup). Both planets are just slightly larger than Jupiter, with radii of 1.14±0.04 and 1.09±0.04 RJup for WASP-104 and WASP-106 respectively. No significant orbital eccentricity is detected in either system, and while this is not surprising in the case of the short-period WASP-104b, it is interesting in the case of WASP-106b, because many otherwise similar planets are known to have eccentric orbits. [less ▲]

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See detailNew Orleans Jazz & Heritage Festival 2014
Sacré, Robert ULg

E-print/Working paper (2014)

Compte rendu du NOLA Jazz & Heritage Festival avril-mai 2014 , avec photos

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See detailChina, 1978-2013: from one Plenum to another. Reflections on hopes and constraints for reform in the Xi Jingping era
Florence, Eric ULg

E-print/Working paper (2014)

Why is it so difficult to talk about China in a nuanced and contrasting manner without falling back on superlatives and generalisations? In about thirty years, China’s GDP per capita has multiplied by ... [more ▼]

Why is it so difficult to talk about China in a nuanced and contrasting manner without falling back on superlatives and generalisations? In about thirty years, China’s GDP per capita has multiplied by eight. From a marginal economic power during the Maoist period (1949-1978), China is now ranked tenth in terms of global economic weight. “Wealth and power” (fu qiang) is the expression that embodies China’s quest for modernity since the second half of the 19th century, when China was still under the yoke of the West. This ambition is still at the heart of the “Chinese dream of rejuvenation of the Chinese nation” dear to Xi Jinping, which he set out during the Third Plenum of the 18th Central Committee of the Chinese Communist Party. But focusing only on this vision of “wealth and power” takes us back to one of the most common ways of representing China: reducing the ongoing socio-economic changes and dynamics to a set of numeric values, ultimately reified and homogenised. The increased power and internationalisation of the Chinese economy has prompted a combination of worry and enthusiasm. What does this imply about the paradigm shift in the way we portray this country? Perhaps it is still hard to leave behind the image of a subordinate, poor and voiceless China and consider the Chinese people as, at least, our equals. [less ▲]

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See detailL’Université de Liège pendant la guerre 1914-1918
Bechet, Christophe ULg

E-print/Working paper (2014)

Histoire de l'Université de Liège pendant la Grande Guerre, axée principalement sur le drame de la place du 20 août et l'occupation des locaux par l'armée allemande.

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See detailFonck meurt premier comme devant
Bechet, Christophe ULg

E-print/Working paper (2014)

Cet article revient sur le mythe du cavalier Fonck, premier soldat belge tué le 4 août 1914, sur la route Thimister-Battice

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See detailThe binary near-Earth asteroid (175706) 1996 FG3 - An observational constraint on its orbital stability
Scheirich, P.; Pravec, P.; Jacobson, S. A. et al

E-print/Working paper (2014)

Using our photometric observations taken between April 1996 and January 2013 and other published data, we derive properties of the binary near-Earth asteroid (175706) 1996 FG3 including new measurements ... [more ▼]

Using our photometric observations taken between April 1996 and January 2013 and other published data, we derive properties of the binary near-Earth asteroid (175706) 1996 FG3 including new measurements constraining evolution of the mutual orbit with potential consequences for the entire binary asteroid population. We also refined previously determined values of parameters of both components, making 1996 FG3 one of the most well understood binary asteroid systems. We determined the orbital vector with a substantially greater accuracy than before and we also placed constraints on a stability of the orbit. Specifically, the ecliptic longitude and latitude of the orbital pole are 266{\deg} and -83{\deg}, respectively, with the mean radius of the uncertainty area of 4{\deg}, and the orbital period is 16.1508 +\- 0.0002 h (all uncertainties correspond to 3sigma). We looked for a quadratic drift of the mean anomaly of the satellite and obtained a value of 0.04 +\- 0.20 deg/yr^2, i.e., consistent with zero. The drift is substantially lower than predicted by the pure binary YORP (BYORP) theory of McMahon and Scheeres (McMahon, J., Scheeres, D. [2010]. Icarus 209, 494-509) and it is consistent with the theory of an equilibrium between BYORP and tidal torques for synchronous binary asteroids as proposed by Jacobson and Scheeres (Jacobson, S.A., Scheeres, D. [2011]. ApJ Letters, 736, L19). Based on the assumption of equilibrium, we derived a ratio of the quality factor and tidal Love number of Q/k = 2.4 x 10^5 uncertain by a factor of five. We also derived a product of the rigidity and quality factor of mu Q = 1.3 x 10^7 Pa using the theory that assumes an elastic response of the asteroid material to the tidal forces. This very low value indicates that the primary of 1996 FG3 is a 'rubble pile', and it also calls for a re-thinking of the tidal energy dissipation in close asteroid binary systems. [less ▲]

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See detailFederico García Lorca en Lieja
Francois, Jeromine ULg

E-print/Working paper (2014)

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See detailSome misunderstood or unknown tricks (VIII) and Turing-completeness (LaTeX)
Merciadri, Luca ULg

E-print/Working paper (2014)

We will begin by exposing new tricks, i.e. how to 1. write ‘closed’ square roots, 2. insert blank pages, 3. ask the reader to turn the page, 4. write bold words in an index, 5. divide a cell by a diagonal ... [more ▼]

We will begin by exposing new tricks, i.e. how to 1. write ‘closed’ square roots, 2. insert blank pages, 3. ask the reader to turn the page, 4. write bold words in an index, 5. divide a cell by a diagonal, 6. draw ‘product integrals,’ 7. understand what happens when \mathcal has a lower-case letter argument. We will then consider an uncommon example of what one can do with LaTeX, in link with its Turing completeness. [less ▲]

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See detailHexis
Durand, Pascal ULg

E-print/Working paper (2014)

Définition et discussion du concept d'« Hexis » dans la sociologie de Pierre Bourdieu.

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Peer Reviewed
See detailIllusio
Durand, Pascal ULg

E-print/Working paper (2014)

Définition et discussion du concept d'« Illusio » dans la sociologie de Pierre Bourdieu.

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See detailCapital symbolique
Durand, Pascal ULg

E-print/Working paper (2014)

Présentation et discussion du concept de « Capital symbolique » dans la sociologie de Pierre Bourdieu.

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See detailEstimation and approximation in nonlinear dynamic systems using quasilinearization
Frasso, Gianluca ULg; Jaeger, Jonathan ULg; Lambert, Philippe ULg

E-print/Working paper (2014)

Nonlinear (systems of) ordinary differential equations (ODEs) are common tools in the analysis of complex one-dimensional dynamic systems. In this paper we propose a smoothing approach regularized by a ... [more ▼]

Nonlinear (systems of) ordinary differential equations (ODEs) are common tools in the analysis of complex one-dimensional dynamic systems. In this paper we propose a smoothing approach regularized by a quasilinearized ODE-based penalty in order to approximate the state functions and estimate the parameters defining nonlinear differential systems from noisy data. Within the quasilinearized spline based framework, the estimation process reduces to a conditionally linear problem for the optimization of the spline coefficients. Furthermore, standard ODE compliance parameter(s) selection criteria are easily applicable and conditions on the state function(s) can be eventually imposed using soft or hard constraints. The approach is illustrated on real and simulated data. [less ▲]

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See detailClassifying pairs with trees for supervised biological network inference
Schrynemackers, Marie ULg; Wehenkel, Louis ULg; Madan Babu, Mohan et al

E-print/Working paper (2014)

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See detailLe Parti Socialiste en 2014: un programme électoral en rupture avec les précédents ?
Piet, Grégory ULg; Dandoy, Régis

E-print/Working paper (2014)

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See detailHubble Space Telescope Near-IR Transmission Spectroscopy of the Super-Earth HD 97658b
Knutson, Heather A.; Dragomir, Diana; Kreidberg, Laura et al

E-print/Working paper (2014)

Recent results from the Kepler mission indicate that super-Earths (planets with masses between 1-10 times that of the Earth) are the most common kind of planet around nearby Sun-like stars. These planets ... [more ▼]

Recent results from the Kepler mission indicate that super-Earths (planets with masses between 1-10 times that of the Earth) are the most common kind of planet around nearby Sun-like stars. These planets have no direct solar system analogue, and are currently one of the least well-understood classes of extrasolar planets. Many super-Earths have average densities that are consistent with a broad range of bulk compositions, including both water-dominated worlds and rocky planets covered by a thick hydrogen and helium atmosphere. Measurements of the transmission spectra of these planets offer the opportunity to resolve this degeneracy by directly constraining the scale heights and corresponding mean molecular weights of their atmospheres. We present Hubble Space Telescope near-infrared spectroscopy of two transits of the newly discovered transiting super-Earth HD 97658b. We use the Wide Field Camera 3's scanning mode to measure the wavelength-dependent transit depth in thirty individual bandpasses. Our averaged differential transmission spectrum has a median 1 sigma uncertainty of 19 ppm in individual bins, making this the most precise observation of an exoplanetary transmission spectrum obtained with WFC3 to date. Our data are inconsistent with a cloud-free solar metallicity atmosphere at the 17 sigma level. They are a good match for flat models corresponding to either a metal-rich atmosphere or a solar metallicity atmosphere with a cloud or haze layer located at pressures of a mbar or higher. [less ▲]

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See detailWASP-20b and WASP-28b: a hot Saturn and a hot Jupiter in near-aligned orbits around solar-type stars
Anderson, D. R.; Collier Cameron, A.; Hellier, C. et al

E-print/Working paper (2014)

We report the discovery of the planets WASP-20b and WASP-28b along with measurements of their sky-projected orbital obliquities. WASP-20b is an inflated, Saturn-mass planet (0.31 $M_{\rm Jup}$; 1.46 $R ... [more ▼]

We report the discovery of the planets WASP-20b and WASP-28b along with measurements of their sky-projected orbital obliquities. WASP-20b is an inflated, Saturn-mass planet (0.31 $M_{\rm Jup}$; 1.46 $R_{\rm Jup}$) in a 4.9-day, near-aligned ($\lambda = 8.1 \pm 3.6^\circ$) orbit around CD-24 102 ($V$=10.7; F9). WASP-28b is an inflated, Jupiter-mass planet (0.91 $M_{\rm Jup}$; 1.21 $R_{\rm Jup}$) in a 3.4-day, near-aligned ($\lambda = 8 \pm 18^\circ$) orbit around a $V$=12, F8 star. As intermediate-mass planets in short orbits around aged, cool stars ($7^{+2}_{-1}$ Gyr for WASP-20 and $5^{+3}_{-2}$ Gyr for WASP-28; both with $T_{\rm eff}$ < 6250 K), their orbital alignment is consistent with the hypothesis that close-in giant planets are scattered into eccentric orbits with random alignments, which are then circularised and aligned with their stars' spins via tidal dissipation. [less ▲]

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See detailEn el laboratorio de la ciencia ficción hispánica: una entrevista
Ceballos Viro, Alvaro ULg

E-print/Working paper (2014)

Detailed reference viewed: 19 (3 ULg)
Peer Reviewed
See detailHedwig Margrethe Elisabeth von Ranzau
Henneau, Marie-Elisabeth ULg

E-print/Working paper (2014)

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See detailVon Themara nach Belgrad und zurück: Burkhard Spinnens Roman "Nevena"
Dupont, Bruno ULg

E-print/Working paper (2014)

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See detailCerebral functional connectivity periodically (de)synchronizes with anatomical constraints
Liegeois, Raphaël ULg; Sepulchre, Rodolphe ULg; LAUREYS, Steven ULg

E-print/Working paper (2014)

This paper studies the link between resting-state functional connectivity (FC), measured by the correlations of the fMRI BOLD time courses, and structural connectivity (SC), estimated through fiber ... [more ▼]

This paper studies the link between resting-state functional connectivity (FC), measured by the correlations of the fMRI BOLD time courses, and structural connectivity (SC), estimated through fiber tractography. Instead of a static analysis based on the correlation between SC and the FC averaged over the entire fMRI time series, we propose a dynamic analysis, based on the time evolution of the correlation between SC and a suitably windowed FC. Assessing the statistical significance of the time series against random phase permutations, our data show a pronounced peak of significance for time window widths around 20-30 TR (40-60 sec). Using the appropriate window width, we show that FC patterns oscillate between phases of high modularity, primarily shaped by anatomy, and phases of low modularity, primarily shaped by inter-network connectivity. Building upon recent results in dynamic FC, this emphasizes the potential role of SC as a transitory architecture between different highly connected resting state FC patterns. Finally, we show that networks implied in consciousness-related processes, such as the default mode network (DMN), contribute more to these brain-level fluctuations compared to other networks, such as the motor or somatosensory networks. This suggests that the fluctuations between FC and SC are capturing mind-wandering effects. [less ▲]

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See detailInflated discrete Beta regression models for Likert and discrete rating scale outcomes
Taverne, Cédric; Lambert, Philippe ULg

E-print/Working paper (2014)

Discrete ordinal responses such as Likert scales are regularly proposed in questionnaires and used as dependent variable in modeling. The response distribution for such scales is always discrete, with ... [more ▼]

Discrete ordinal responses such as Likert scales are regularly proposed in questionnaires and used as dependent variable in modeling. The response distribution for such scales is always discrete, with bounded support and often skewed. In addition, one particular level of the scale is frequently inflated as it cumulates respondents who invari- ably choose that particular level (typically the middle or one extreme of the scale) without hesitation with those who chose that alternative but might have selected a neighboring one. The inflated discrete beta regression (IDBR) model addresses those four critical characteristics that have never been taken into account simultaneously by existing models. The mean and the dispersion of rates are jointly regressed on covariates using an underlying beta distribution. The probability that choosers of the inflated level invariably make that choice is also regressed on covariates. Simulation studies used to evaluate the statistical properties of the IDBR model suggest that it produces more precise predictions than competing models. The ability to jointly model the location and dispersion of (the distribution of) an ordinal response, as well as to characterize the profile of subject selecting an ”inflated” alternative are the most relevant features of the IDBR model. It is illustrated with the analysis of the political positioning on a ”left-right” scale of the Belgian respondents in the 2012 European Social Survey. [less ▲]

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See detailWhat roles for energy cooperatives in the diffusion of distributed generation technologies?
Bauwens, Thomas ULg

E-print/Working paper (2014)

Whereas a centralized model of electricity infrastructure is still dominant today, many scholars advocate the diffusion of distributed generation technologies, implying geographically dispersed and small ... [more ▼]

Whereas a centralized model of electricity infrastructure is still dominant today, many scholars advocate the diffusion of distributed generation technologies, implying geographically dispersed and small-scale generation units located close to consumers. However, there exist various barriers of different natures to a large-scale penetration of these technologies. In this article, we focus on the behavioral and psychological ones, emphasizing the roles that citizens have to play in this issue. More specifically, we explore a specific way of involving citizens in such diffusion, namely energy cooperatives. After presenting the driving forces of the emergence of cooperative firms in the energy sector, we examine the assets of the cooperative ownership structure from the perspectives of behavioral economics and social psychology. Our analysis enables us to build a model of how cooperatives may enhance consumer engagement in the diffusion of distributed generation technologies. This provides a basic theoretical framework for future empirical research. [less ▲]

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See detailIntegrating the weight of history into the alignment framework: the case of distributed generation technologies
Bauwens, Thomas ULg

E-print/Working paper (2014)

Whereas a centralized energy supply system is still dominant today, the energy sector is currently witnessing the development of small-scale and more geographically dispersed generation units, so-called ... [more ▼]

Whereas a centralized energy supply system is still dominant today, the energy sector is currently witnessing the development of small-scale and more geographically dispersed generation units, so-called distributed generation technologies. So-called "alignment framework" proposes a very useful approach to look at this evolution. Yet, we argue in this paper that this framework does not fully take into account the inertia associated with past technological and institutional choices that may hinder future changes. Relying on the concept of socio-technical lock-in, we illustrate this point with the case of the diffusion of distributed generation technologies. Based on this analysis, we propose an adaptation of the alignment framework to integrate these elements. [less ▲]

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See detailPhysician induced demand for C-sections: does the convenience incentive matter?
Lefevre, Mélanie ULg

E-print/Working paper (2014)

This paper investigates whether physicians induce demand for C-sections in the days preceding leisure periods. I reject that doctors are meaningfully increasing the number of primary cesareans to ... [more ▼]

This paper investigates whether physicians induce demand for C-sections in the days preceding leisure periods. I reject that doctors are meaningfully increasing the number of primary cesareans to accommodate their own preferences for control of deliveries around holiday Mondays. Using a sample of more than 1,300,000 deliveries, I can estimate that the induced demand due to convenience is close to zero. A small signi cant e ect is found for women having had a previous C-section. While I replicate previous results of lower C-section rates on leisure periods, I show that they are due to the way doctors schedule planned cesareans rather than to an induced demand for reason of physicians' convenience. If induced demand occurs, the decision takes place in the labor room and is not planned in advance. [less ▲]

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See detailDes royaumes aux nations ? L’Europe barbare aux Ve-VIe siècles
Fialon, Sabine ULg

E-print/Working paper (2014)

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See detailCerebral functional connectivity periodically (de)synchronizes with anatomical constraints
Liegeois, Raphaël ULg

E-print/Working paper (2014)

This paper studies the link between resting-state functional connectivity (FC), measured by the correlations of the fMRI BOLD time courses, and structural connectivity (SC), estimated through fiber ... [more ▼]

This paper studies the link between resting-state functional connectivity (FC), measured by the correlations of the fMRI BOLD time courses, and structural connectivity (SC), estimated through fiber tractography. Instead of a static analysis based on the correlation between SC and the FC averaged over the entire fMRI time series, we propose a dynamic analysis, based on the time evolution of the correlation between SC and a suitably windowed FC. Assessing the statistical significance of the time series against random phase permutations, our data show a pronounced peak of significance for time window widths around 20-30 TR (40-60 sec). Using the appropriate window width, we show that FC patterns oscillate between phases of high modularity, primarily shaped by anatomy, and phases of low modularity, primarily shaped by inter-network connectivity. Building upon recent results in dynamic FC, this emphasizes the potential role of SC as a transitory architecture between different highly connected resting state FC patterns. Finally, we show that networks implied in consciousness-related processes, such as the default mode network (DMN), contribute more to these brain-level fluctuations compared to other networks, such as the motor or somatosensory networks. This suggests that the fluctuations between FC and SC are capturing mind-wandering effects. [less ▲]

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See detailQue pouvons-nous attendre du sommet européen de décembre 2013 ?
Dumoulin, André ULg

E-print/Working paper (2013)

Hypothèses autour des décisions attendues du sommet UE spécial défense prévu en décembre 2013 avec les différentes écoles de pensée

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See detailWat kunnen wij verwachten van de Europese top van december 2013 ?
Dumoulin, André ULg

E-print/Working paper (2013)

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See detailWhat can we expect from the December 2013 European Summit ?
Dumoulin, André ULg

E-print/Working paper (2013)

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See detailSpline approximation to conditional Archimedean copula
Lambert, Philippe ULg

E-print/Working paper (2013)

We propose a flexible copula model to describe changes with a covari- ate in the dependence structure of (conditionally exchangeable) random variables. The starting point is a spline approximation to the ... [more ▼]

We propose a flexible copula model to describe changes with a covari- ate in the dependence structure of (conditionally exchangeable) random variables. The starting point is a spline approximation to the generator of an Archimedean copula. Changes in the dependence structure with a covariate x are modelled by flexible regression of the spline coefficients on x. The performances and properties of the spline estimate of the reference generator and the abilities of these conditional models to approximate conditional copulas are studied through simulations. Inference is made using Bayesian arguments with posterior distributions explored using im- portance sampling or adaptive MCMC algorithms. The modelling strategy is illustrated with two examples. [less ▲]

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Peer Reviewed
See detailUne épaule sur laquelle s'appuyer
Forthomme, Bénédicte ULg

E-print/Working paper (2013)

Detailed reference viewed: 33 (3 ULg)
See detailCos: A Typical Example of Hellenistic Religion?
Paul, Stéphanie ULg

E-print/Working paper (2013)

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See detailLe samedi 15 août 778
Rolland, Jean-Noël ULg

E-print/Working paper (2013)

Battle of Roncevaux Pass and his historical context. Roncesvalles is famous in History and legend for the defeat of Charlemagne and the death of Roland in 778, during the battle of Roncevaux Pass, when ... [more ▼]

Battle of Roncevaux Pass and his historical context. Roncesvalles is famous in History and legend for the defeat of Charlemagne and the death of Roland in 778, during the battle of Roncevaux Pass, when Charlemagne's rear guard was destroyed by Basque tribes. [less ▲]

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See detailDaniel Kehlmann: Ich und Kaminski
Hackbarth, Sabine ULg; Dupont, Bruno ULg

E-print/Working paper (2013)

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See detailThree sub-Jupiter-mass planets: WASP-69b & WASP-84b transit active K dwarfs and WASP-70Ab transits the evolved primary of a G4+K3 binary
Anderson, D. R.; Collier Cameron, A.; Delrez, Laetitia ULg et al

E-print/Working paper (2013)

We report the discovery of the transiting exoplanets WASP-69b, WASP-70Ab and WASP-84b, each of which orbits a bright star (V~10). WASP-69b is a bloated Saturn-mass planet (0.26 M$_{\rm Jup}$, 1.06 R$_{\rm ... [more ▼]

We report the discovery of the transiting exoplanets WASP-69b, WASP-70Ab and WASP-84b, each of which orbits a bright star (V~10). WASP-69b is a bloated Saturn-mass planet (0.26 M$_{\rm Jup}$, 1.06 R$_{\rm Jup}$) in a 3.868-d period around an active mid-K dwarf. We estimate a stellar age of 1 Gyr from both gyrochronological and age-activity relations, though an alternative gyrochronological relation suggests an age of 3 Gyr. ROSAT detected X-rays at a distance of 60$\pm$27 arcsec from WASP-69. If the star is the source then the planet could be undergoing mass-loss at a rate of ~10$^{12}$ g s$^{-1}$. This is 1-2 orders of magnitude higher than the evaporation rate estimated for HD 209458b and HD 189733b, both of which have exhibited anomalously-large Lyman-{\alpha} absorption during transit. WASP-70Ab is a sub-Jupiter-mass planet (0.59 M$_{\rm Jup}$, 1.16R$_{\rm Jup}$) in a 3.713-d orbit around the primary of a spatially-resolved G4+K3 binary, with a separation of 3.3 arcsec ($\geq$800 AU). We exploit the binary nature of the system to construct a H-R diagram, from which we estimate its age to be 9-10 Gyr. WASP-84b is a sub-Jupiter-mass planet (0.69 M$_{\rm Jup}$, 0.94 R$_{\rm Jup}$) in an 8.523-d orbit around an active early-K dwarf. Of the transiting planets discovered from the ground to date, WASP-84b has the third-longest period. From a combination of gyrochronological and age-activity relations we estimate the age of WASP-84 to be ~1 Gyr. For both the active stars WASP-69 and WASP-84 we find a modulation of the radial velocities with a period similar to the photometrically-determined stellar rotation period. We fit the residuals with a low-order harmonic series and subtract the best fit from the RVs prior to deriving the system parameters. In each case the solution is essentially unchanged, with much less than a 1-{\sigma} change to the planetary mass. We found... [less ▲]

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See detailThree irradiated and bloated hot Jupiters: WASP-76b, WASP-82b & WASP-90b
West, R. G.; Almenara, J.-M.; Anderson, D. R. et al

E-print/Working paper (2013)

We report three new transiting hot-Jupiter planets discovered from the WASP surveys combined with radial velocities from OHP/SOPHIE and Euler/CORALIE and photometry from Euler and TRAPPIST. All three ... [more ▼]

We report three new transiting hot-Jupiter planets discovered from the WASP surveys combined with radial velocities from OHP/SOPHIE and Euler/CORALIE and photometry from Euler and TRAPPIST. All three planets are inflated, with radii 1.7-1.8 Rjup. All orbit hot stars, F5-F7, and all three stars have evolved, post-MS radii (1.7-2.2 Rsun). Thus the three planets, with orbits of 1.8-3.9 d, are among the most irradiated planets known. This reinforces the correlation between inflated planets and stellar irradiation. [less ▲]

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See detailSearching for Terrestrial Planets Orbiting in the Habitable Zone of Ultra-Cool Stars and Brown Dwarfs
Demory, Brice-Olivier; Seager, Sara; Lissauer, Jack et al

E-print/Working paper (2013)

We propose to use Kepler in 2-wheel mode to conduct a detailed search for Earth-sized planets orbiting ultra-cool stars and brown dwarfs (spectral types from M7 to L3). This population of objects presents ... [more ▼]

We propose to use Kepler in 2-wheel mode to conduct a detailed search for Earth-sized planets orbiting ultra-cool stars and brown dwarfs (spectral types from M7 to L3). This population of objects presents several advantages for exoplanet surveys. First, ultra-cool stars and brown dwarfs are small and thus result in favorable planet-to-star area ratios. Second, because of their low effective temperature, the inner edge of their habitable zone is extremely close (2 to 3 days only). Third, our targets are bright at infrared wavelengths, which will enable detailed follow-up studies. Our program therefore represents a unique opportunity to find a transiting Earth-size exoplanet for which atmospheric features (including biosignatures) could be detected with near-to-come facilities such as JWST. Such exoplanet has not been discovered yet. Kepler in 2-wheel mode provides the required stability and photometric precision to make this survey successful. Our initial target sample includes 60 ultra-cool stars and brown dwarfs from which we expect to detect at least one transiting planet. We propose to monitor each source for 4 days, resulting in a total program duration of ~240 days. [less ▲]

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See detailPhysician Induced Demand for C-Sections: Does the Convenience Incentive Matter?
Lefevre, Mélanie ULg

E-print/Working paper (2013)

This paper investigates whether physicians induce demand for C-sections in the days preceding leisure periods. I reject that doctors are meaningfully increasing the number of cesareans to accommodate ... [more ▼]

This paper investigates whether physicians induce demand for C-sections in the days preceding leisure periods. I reject that doctors are meaningfully increasing the number of cesareans to accommodate their own preferences for control of deliveries around holiday Mondays. Using a sample of more than 1,300,000 deliveries, I can precisely estimate that the induced demand due to convenience is close to zero. While I replicate previous results of lower C-section rates on leisure periods, I show that they are due to the way doctors schedule planned cesareans rather than to an induced demand for reason of physicians' convenience. [less ▲]

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See detailLes Draps de lit
Demoulin, Laurent ULg

E-print/Working paper (2013)

Les Draps de lit est une pièce de théâtre inédite de Jean-Philippe Toussaint, antérieure à La Salle de bain. Elle est ici éditée avec un apparat critique: variantes et notes critiques.

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See detailChicago Gospel Festival June 2013
Sacré, Robert ULg

E-print/Working paper (2013)

Compte-rendu avec photos

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See detailLa gouvernance des coopératives en situation de conflit et de post-conflit
Niyungeko, Thadée ULg; Huybrechts, Benjamin ULg

E-print/Working paper (2013)

If governance has become, for many years, as a matter of paramount importance in traditional companies (Berle & Means, 1932), microfinance institutions have also not escaped this need (Rock et al. 1998 ... [more ▼]

If governance has become, for many years, as a matter of paramount importance in traditional companies (Berle & Means, 1932), microfinance institutions have also not escaped this need (Rock et al. 1998), there are about thirty years. Considered essential to address issues related to economic and social development (Wélé, 2009), governance is also emerging as an undeniable factor for to strengthen the financial performance and to increase awareness in microfinance institutions (Rock et al., 1998; Labie, 2001 Helms, 2006). Several authors have contributed to the understanding of corporate governance by using a variety of theoretical approaches (Jensen & Meckling (1976), Fama and Jensen (1983a) for Shareholders approach, Freeman (1984), Donaldson & Preston (1995) Hung (1998) for the stakeholder approach, Meyer and Rowan (1977), Mertens (2010), Muth & Donaldson (1998), Berle & Means (1932); Labie (2005a) for alternative approaches). Applied individually in cooperatives and organizations, these approaches have proved rather one-dimensional and illuminate one aspect of the Boards of Directors (Cornforth, 2004). Hence the need for an approach that integrates the insights of these perspectives has been felt. Thus, a perspective in terms of paradox (Cornforth, 2004) helped to highlight the dilemmas, paradoxes and tensions that boards of directors are facing. Several researchers have used this paradox perspective in different organizations (Demb & Neubauer, 1992 Wood, 1996; Sundaramurthy & Lewis, 2003), but it also did not take long. Criticized for focusing only on the board, this perspective paradox is also alleged to ignore the role of contextual factors. However, as argued by DiMaggio & Powell (1983), Meyer and Rowan (1977), environmental factors play an undeniable role in the way organizations make isomorphic. Rijpens & Adam (2011) also point out that the internal and external factors to the organization involved in the debate on the governance model adopted. Hudon and Seibel (2007) argue that conflicts and disasters seriously affect the socio-economic institutions, public governance, networks and social relations of citizens, including those related to the exchange or transfer of financial resources. This article examines the influence of armed conflict on the cooperatives’ governance. It is built around three fundamental questions. (1) What overlay the systems of cooperatives governance? (2) What is the theoretical model of governance adapted to cooperatives working in conflict situations? (3) How an armed conflict does it influence the cooperatives governance? To answer these questions, this article assumes, first, the confrontation of existing theoretical approaches in the literature on corporate governance in general and cooperatives in particular. It then develops a model of governance adapted to the conflict. Finally, that model will be tested after data collect from a qualitative field study based on the triangulation of information resources and interviews with key players in organizations under study in a country where microfinance institutions have evolved conflict situations. The results will be presented in another article. [less ▲]

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See detailLes facteurs de la relation d’agence en niveaux dans la longue chaîne Bailleurs de fonds étrangers - ONG internationales – ONG locales - associations endogènes - bénéficiaires : cas du Burundi
Manirambona, Célestin ULg

E-print/Working paper (2013)

Several studies on the sources of funding for local NGOs in Africa highlight their dependence on foreign donors, while in developed countries, these organizations have multiple resources. Investigations ... [more ▼]

Several studies on the sources of funding for local NGOs in Africa highlight their dependence on foreign donors, while in developed countries, these organizations have multiple resources. Investigations previously done show that the majority of resources of local NGOs come from foreign donors, and most of them are dead at inception due to lack of funding. Before reaching the beneficiaries, financing goes through several players who are related by an explicit contract: Foreign donors - International NGOs - Local NGOs - Endogenous groups - beneficiaries populations. The literature points to the existence of a contractual relationship between the one who runs the activities and the one that funds them. Yet despite this explicit contract, some actors in this chain of relationships are influenced by other factors and / or their interests and make decisions that have no direct links with the mission of the organization. This leads us to ask ourselves two questions: first, the question about the factors that characterize the relationship between actors and secondly whether at all levels, the actors involve other stakeholders. The present paper aims to provide a conceptual and theoretical framework to characterize the agency chain relationship between these different actors. Although there are studies on the application of the agency theory in the governance of Nonprofit organizations, there have been very few studies done on the agency chain relationship between these organizations. It is then necessary to make new theoretical developments on how local NGOs in Africa in general, and Burundi in particular, are funded and governed; and that, in the case where the actors in the chain relationship are in different contexts. To do this, we will first mobilize and apply the agence theory and others theories of governance at this agency chain relationship. We conclude by showing the peculiarity of Africa in general, and Burundi in particular with additional elements that enhance this agency relationship, making then the conceptual model complex. [less ▲]

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See detailDo consumers pay more for what they value more? The case of local milk-based dairy products in Senegal
Lefevre, Mélanie ULg

E-print/Working paper (2013)

Senegalese consumers seem to prefer local fresh milk-based dairy products rather than the ones produced with imported powder. However, market prices of both products do not appear to be different. This ... [more ▼]

Senegalese consumers seem to prefer local fresh milk-based dairy products rather than the ones produced with imported powder. However, market prices of both products do not appear to be different. This paper addresses this puzzle. First, I confirm the preference for local products. Using choice-based-conjoint data, I evaluate that Senegalese consumers are willing to pay a positive and significant premium for these products. Then, I identify the determinants of prices, based on a unique dataset of milk products characteristics. Evidence suggests that consumers' misinformation regarding the product composition prevents them from allocating a higher price to local milk-based products. [less ▲]

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See detailBlues on The Fox , Blues Festival Aurora June 2013
Sacré, Robert ULg

E-print/Working paper (2013)

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See detailInnovations in IT Organization Design: Is the Public Sector Really a Special Case?
Markus, M. Lynne; Jacobson, Dax D.; Lisein, Olivier ULg et al

E-print/Working paper (2013)

IT organization design, consisting of IT governance (decision rights) and IT organization structure, is believed to affect organizational performance. This paper describes the IT organization design ... [more ▼]

IT organization design, consisting of IT governance (decision rights) and IT organization structure, is believed to affect organizational performance. This paper describes the IT organization design choices of the 50 U.S. state governments. Significant movement toward greater centralization was observed (particularly for IT services). States appeared to have adopted IT organization design innovations previously pioneered in the private sector, contrary to conventional wisdom founded on well-documented differences between the two sectors. Two commonly used explanations of IT organization design choices were examined for their ability to account for the unexpected findings — contingency and institutional theories. Both explanations were partially successful in explaining the results, but further theoretical development is needed to integrate those theories and more empirical research is needed to advance the field’s knowledge of IT organization design. [less ▲]

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See detailL'élargissement vers la Croatie : un succès de la diplomatie européenne
Lika, Liridon ULg

E-print/Working paper (2013)

Ce 1er juillet 2013, après six années de négociations avec l’Union européenne (UE) et de réformes laborieuses, la Croatie deviendra le 28ème État membre à part entière de la famille européenne. Après la ... [more ▼]

Ce 1er juillet 2013, après six années de négociations avec l’Union européenne (UE) et de réformes laborieuses, la Croatie deviendra le 28ème État membre à part entière de la famille européenne. Après la Slovénie, membre depuis 2004, il s’agit du deuxième pays sortant de la dissolution violente de l’ex-Yougoslavie à rejoindre l’UE. Contrairement à son voisin slovène où les hostilités n’ont duré que quelques jours, la Croatie a connu plusieurs années de guerre et de destruction. Raison pour laquelle elle a été confrontée à une longue période de transition. Depuis son indépendance en 1991, tous les gouvernements croates ont engagé, un processus de consolidation de leur État. Ensuite ils ont consacré leur force à l’adhésion de leur pays à l’Organisation du traité de l’Atlantique Nord (OTAN), concrétisée en 2009, enfin ils ont travaillé à leur entrée dans l’UE. Mais quel intérêt l’Union a-t-elle à voir ces pays la rejoindre ? [less ▲]

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See detailThe HARPS search for southern extra-solar planets. XXXIV. A planetary system around the nearby M dwarf GJ163, with a super-Earth possibly in the habitable zone
Bonfils, X.; Lo Curto, G.; Correia, A. C. M. et al

E-print/Working paper (2013)

The meter-per-second precision achieved by today velocimeters enables the search for 1-10 M_Earth planets in the habitable zone of cool stars. This paper reports on the detection of 3 planets orbiting ... [more ▼]

The meter-per-second precision achieved by today velocimeters enables the search for 1-10 M_Earth planets in the habitable zone of cool stars. This paper reports on the detection of 3 planets orbiting GJ163 (HIP19394), a M3 dwarf monitored by our ESO/HARPS search for planets. We made use of the HARPS spectrograph to collect 150 radial velocities of GJ163 over a period of 8 years. We searched the RV time series for coherent signals and found 5 distinct periodic variabilities. We investigated the stellar activity and casted doubts on the planetary interpretation for 2 signals. Before more data can be acquired we concluded that at least 3 planets are orbiting GJ163. They have orbital periods of P_b=8.632+-0.002, P_c=25.63+-0.03 and P_d=604+-8 days and minimum masses msini = 10.6+-0.6, 6.8+-0.9, and 29+-3 M_Earth, respectively. We hold our interpretations for the 2 additional signals with periods P_(e)=19.4 and P_(f)=108 days. The inner pair presents an orbital period ratio of 2.97, but a dynamical analysis of the system shows that it lays outside the 3:1 mean motion resonance. GJ163c, in particular, is a super-Earth with an equilibrium temperature of T_eq = (302+-10) (1-A)^(1/4) K and may lie in the so called habitable zone for albedo values (A=0.34-0.89) moderately higher than that of Earth (A_Earth=0.2-0.3). [less ▲]

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See detailGabriel package: software for education and research
Olive, Gilles ULg

E-print/Working paper (2013)

Today, personal computers are part of our life either at home, at work or at school. Even if the computer power increases, the software are more and more complicated, asking more and more time for ... [more ▼]

Today, personal computers are part of our life either at home, at work or at school. Even if the computer power increases, the software are more and more complicated, asking more and more time for learning it or for obtaining a result. It becomes important to have in labs as well as at school small fast software using empirical equations. We report here about the use but more particularly the algorithms, the equations and the data sets of three software belonging to the Gabriel package. The first one, Gabriel Nathalie II, is a calculator with many functionality's. It is possible to calculate the pKa or to simulate the chemical shift in 31P NMR of amino-phosphonate. Moreover it is also able to dertimine the thermodynamics data of bisphosphonate binding to human bones. The second one, Gabriel Calculatrice Savon, is used to calculate the amount of alkali needed for making a soap according to the amount and the nature of fat but also the viscosity of some oils at a desired temperature. And at least Gabriel Data Analysis is a software devoted to data analysis. Today, software for research can be used for educational and educational software can be useful for research. [less ▲]

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See detailAlexander Kluge et Heiner Müller, ou quand l'interview devient un art
Dupont, Bruno ULg

E-print/Working paper (2013)

Les interviews entre Alexander Kluge et Heiner Müller dans les années nonante sont devenues légendaires, à tel point qu'on les considère comme une partie de l'œuvre du dramaturge de la RDA. Elles sont le ... [more ▼]

Les interviews entre Alexander Kluge et Heiner Müller dans les années nonante sont devenues légendaires, à tel point qu'on les considère comme une partie de l'œuvre du dramaturge de la RDA. Elles sont le témoin de l'irruption de Kluge dans l'audiovisuel allemand, ainsi que de la pensée et la parole de Müller. La publication de leur recueil en français permet de revivre ces dialogues, fruit de la rencontre de deux artistes hors-normes. Diffusés il y a vingt ans, ces échanges sont toujours actuels. Cet article explique pourquoi. [less ▲]

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See detailSOUTHERN BLUES NIGHT , Heerlen (NL) 17e ed. , 15 mars 2013
Sacré, Robert ULg

E-print/Working paper (2013)

C.R. de la 17e Southern Blues Night , le 15 mars 2013 à Heerlen ( Nl) + photos ; Khalif Wailin' Walter , Mud Morganfield, Heritage Blues Orchestra, James Harman, Enrico Crivellaro, Gene Taylor, ....

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See detailPage de Beckett et Beckett de Page
Demoulin, Laurent ULg

E-print/Working paper (2013)

Compte rendu du livre de Martin Page L'Apiculture selon Samuel Beckett.

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See detailCompte rendu de Claude Simon: Situations
Demoulin, Laurent ULg

E-print/Working paper (2013)

Compte rendu du passionnant ouvrage dirigé par Paul Dirkx et Pascal Mougin au sujet de Claude Simon. Esquisse de réflexion sur la clôture du texte.

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See detailGravitationall lensing evidence against extended dark matter halos
Magain, Pierre ULg; Chantry, Virginie ULg

E-print/Working paper (2013)

It is generally thought that galaxies are embedded in dark matter halos extending well beyond their luminous matter. The existence of these galactic halos is mainly derived from the larger than expected ... [more ▼]

It is generally thought that galaxies are embedded in dark matter halos extending well beyond their luminous matter. The existence of these galactic halos is mainly derived from the larger than expected velocities of stars and gas in the outskirts of spiral galaxies. Much less is known about dark matter around early-type (elliptical or lenticular) galaxies. We use gravitational lensing to derive the masses of early-type galaxies deflecting light of background quasars. This provides a robust measurement of the total mass within the Einstein ring, a circle whose diameter is comparable to the separation of the different quasar images. We find that the mass-to-light ratio of the lensing galaxies does not depend on radius, from inner galactic regions out to several half-light radii. Moreover, its value does not exceed the value predicted by stellar population models by more than a factor two, which may be explained by baryonic dark matter alone, without any need for exotic matter. Our results thus suggest that, if dark matter is present in early-type galaxies, its amount does not exceed the amount of luminous matter and its density follows that of luminous matter, in sharp contrast to what is found from rotation curves of spiral galaxies. [less ▲]

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See detailFAO Training in Crop Yield Forecasting. Crop Yield Forecasting Methodology Enhancement – Remote sensing. Erevan 21 - 25 January 2013.
Denis, Antoine ULg

E-print/Working paper (2013)

Power point presentation of the FAO training "Crop Yield Forecasting Methodology Enhancement – Remote sensing", held in Erevan, Armenia, 21 - 25 January 2013 at ARMSTATEHYDROMET. The main objective of ... [more ▼]

Power point presentation of the FAO training "Crop Yield Forecasting Methodology Enhancement – Remote sensing", held in Erevan, Armenia, 21 - 25 January 2013 at ARMSTATEHYDROMET. The main objective of this training was the improvement of the Crop Yield Forecasting System (CYFS) in Armenia by introducing a new approach for satellite data integration (use of TIMESAT software and METOP AVHRR NDVI images). This training was held in the framework of the "EC/FAO Programme on Information Systems to Improve Food Security Decision-Making in the European Neighbourhood Policy (ENP) East Area GCP/GLO/275/EC". [less ▲]

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See detailSome misunderstood or unknown tricks (VII) (LaTeX)
Merciadri, Luca ULg

E-print/Working paper (2013)

This time, as habitually, we shall see some tricks: 2. Putting two itemizations on the same line, 3. Using footnotes in boxes, 4. Dealing with PDF cut-and-past and search functionalities, even when you ... [more ▼]

This time, as habitually, we shall see some tricks: 2. Putting two itemizations on the same line, 3. Using footnotes in boxes, 4. Dealing with PDF cut-and-past and search functionalities, even when you are using accented characters, 5. Making a distinction with \overline for propositional logic formulae, 6. Referring to \labels by long names. We will then discuss some problems people often face when dealing with many figures, and, more generally, floats, in reports. Finally, we will deal with a Beamer scheme which aims at using a single file for both a presentation, and the related report. [less ▲]

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See detailLa réforme du Conseil d’Etat semble désormais sur les rails
Donnay, Luc ULg

E-print/Working paper (2013)

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See detailL’écriture au présent de Thierry Horguelin
Demoulin, Laurent ULg

E-print/Working paper (2013)

Les notations prises sur le vif par Thierry Horguelin portent un regard singulier sur notre quotidien.

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See detail« Pourquoi une nouvelle traduction du Hobbit ? »
Dor, Juliette ULg

E-print/Working paper (2013)

Après la traduction française de Francis Ledoux, qui datait de 1969, les éditions Bourgois viennent de publier une nouvelle traduction du Hobbit, par Daniel Lauzon, plus proche de l'œuvre de Tolkien, plus ... [more ▼]

Après la traduction française de Francis Ledoux, qui datait de 1969, les éditions Bourgois viennent de publier une nouvelle traduction du Hobbit, par Daniel Lauzon, plus proche de l'œuvre de Tolkien, plus contemporaine aussi. [less ▲]

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See detailConnecting IT Governance with Sourcing Theory: IT Centralization, Consolidation, and Outsourcing in US State Governments
Markus, M. Lynne; Jacobson, Dax D.; Bui, Quang Neo et al

E-print/Working paper (2013)

This paper focuses on an apparent disconnect between the literatures on 1) the governance of IT decisions and the organization of IT activities inside organizations and 2) IT outsourcing decisions and IT ... [more ▼]

This paper focuses on an apparent disconnect between the literatures on 1) the governance of IT decisions and the organization of IT activities inside organizations and 2) IT outsourcing decisions and IT outsourcing governance arrangements between client organizations and IT service providers. We hypothesize that centralization of IT activities within organizations is a necessary precondition for outcomes such as IT consolidation (leading to large cost efficiencies) and outsourcing deals and possibly also for successful consolidation and outsourcing. We investigate this hypothesis through an exploratory, mixed-method investigation of changes in IT governance arrangements and outcomes in a single, well-defined population of organizations — the executive branches of US State governments. [less ▲]

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See detailÈve de Saint-Martin
Henneau, Marie-Elisabeth ULg

E-print/Working paper (2013)

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See detailPregnancy-Associated Glycoprotein A-62 kDa [Fragment] from Dama dama placenta - Accession number C0HJC7
Bériot, Mathilde ULg; Tchimbou Njanjo, Aline Flora; Barbato, Olimpia et al

E-print/Working paper (2013)

N-terminal microsequence obtained after purification and characterization of placental proteins in Dama dama (fallow deer). Proteins were submitted to SwissProt databank.

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See detailPregnancy-Associated Glycoprotein B-56 kDa [Fragment] from Dama dama placenta - Accession number C0HJC8
Bériot, Mathilde ULg; Tchimbou Njanjo, Aline Flora; Barbato, Olimpia et al

E-print/Working paper (2013)

N-terminal microsequence obtained after purification and characterization of placental proteins in Dama dama (fallow deer). Proteins were submitted to SwissProt databank.

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See detailPregnancy-Associated Glycoprotein C-39 kDa [Fragment] from Dama dama placenta - Accession number C0HJC9
Bériot, Mathilde ULg; Tchimbou Njanjo, Aline Flora; Barbato, Olimpia et al

E-print/Working paper (2013)

N-terminal microsequence obtained after purification and characterization of placental proteins in Dama dama (fallow deer). Proteins were submitted to SwissProt databank.

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See detailPregnancy-Associated Glycoprotein D-56 kDa [Fragment] from Dama dama placenta - Accession number C0HJD0
Bériot, Mathilde ULg; Tchimbou Njanjo, Aline Flora; Barbato, Olimpia et al

E-print/Working paper (2013)

N-terminal microsequence obtained after purification and characterization of placental proteins in Dama dama (fallow deer). Proteins were submitted to SwissProt databank.

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See detailAlpha-2-HS-glycoprotein [Fragment] from Dama dama placenta - Accession number C0HJD1
Bériot, Mathilde ULg; Tchimbou Njanjo, Aline Flora; Barbato, Olimpia et al

E-print/Working paper (2013)

N-terminal microsequence obtained after purification and characterization of placental proteins in Dama dama (fallow deer). Proteins were submitted to SwissProt databank.

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See detailSerum albumin [Fragment] from Dama dama placenta - Accession number C0HJD2
Bériot, Mathilde ULg; Tchimbou Njanjo, Aline Flora; Barbato, Olimpia et al

E-print/Working paper (2013)

N-terminal microsequence obtained after purification and characterization of placental proteins in Dama dama (fallow deer). Proteins were submitted to SwissProt databank.

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See detailHealth Status, Disability and Retirement Incentives in Belgium
Jousten, Alain ULg; Perelman, Sergio ULg; Lefebvre, Mathieu ULg

E-print/Working paper (2013)

Many Belgian retire well before the statutory retirement age. Numerous exit routes from the labor force can be identified: old‐age pensions, conventional early retirement, disability insurance, and ... [more ▼]

Many Belgian retire well before the statutory retirement age. Numerous exit routes from the labor force can be identified: old‐age pensions, conventional early retirement, disability insurance, and unemployment insurance are the most prominent ones. We analyze the retirement decision of Belgian workers adopting an option value framework, and pay special attention to the role of health status. We estimate probit models of retirement using data from SHARE. The results show that health and incentives matter in the decision to exit from the labor market. Based on these results, we simulate the effect of potential reforms on retirement. [less ▲]

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See detailUnraveling electron acceleration mechanisms in Ganymede's space environment through N-S conjugate imagery of Jupiter's aurora
Grodent, Denis ULg; Bonfond, Bertrand ULg; Gérard, Jean-Claude ULg et al

E-print/Working paper (2013)

There is strong scientific interest in Ganymede (Jupiter's third Galilean moon) and its surrounding environment, which stems from the likely presence of a liquid water ocean underneath its icy crust and ... [more ▼]

There is strong scientific interest in Ganymede (Jupiter's third Galilean moon) and its surrounding environment, which stems from the likely presence of a liquid water ocean underneath its icy crust and from its internally driven magnetic field. The interaction of the latter with Jupiter's magnetospheric plasma and its magnetic field gives rise to a unique situation in our solar system implying a mini-magnetosphere embedded within a giant-magnetosphere. This interaction generates Ganymede's ultraviolet auroral footprint in Jupiter's atmosphere. We propose to investigate the strong auroral connection between Jupiter and Ganymede and the variable characteristics of Ganymede's magnetosphere with an innovative approach, taking advantage of the large scale north-south asymmetries of Jupiter's magnetic field. The results obtained for Ganymede will be compared with the case of small injected hot plasma bubbles observed by the Galileo spacecraft and whose size and location are similar to those of Ganymede's magnetosphere. HST is currently the sole instrument capable of obtaining this information which pins down the proposed mechanisms linking the source and sink regions of auroral particles in the giant planets' magnetospheres. [less ▲]

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See detailLepton Flavor Violation in the Scotogenic Model
Toma, Takashi; Vicente, Avelino ULg

E-print/Working paper (2013)

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See detailOn the decoupling of heavy sneutrinos in low-scale seesaw models
Krauss, Manuel E.; Porod, Werner; Staub, Florian et al

E-print/Working paper (2013)

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See detailSterile neutrinos in leptonic and semileptonic decays
Abada, A.; Teixeira, A. M.; Vicente, Avelino ULg et al

E-print/Working paper (2013)

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See detailVector-like leptons: Higgs decays and collider phenomenology
Falkowski, A.; Straub, D. M.; Vicente, Avelino ULg

E-print/Working paper (2013)

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See detailDénommer. Regards rhétoriques sur la terminologie linguistique
[ Lttr 13 ]; Badir, Sémir ULg; Polis, Stéphane ULg et al

E-print/Working paper (2013)

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See detailQuelle école pour tous ?
Crahay, Marcel ULg; Baye, Ariane ULg; Fagnant, Annick ULg et al

E-print/Working paper (2013)

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See detailJesuit Solemnities in the Southern Netherlands : Immersion and Experience
Delfosse, Annick ULg

E-print/Working paper (2013)

Detailed reference viewed: 11 (4 ULg)
See detailSome misunderstood or unknown LaTeX tricks (VI)
Merciadri, Luca ULg

E-print/Working paper (2012)

Customizing a document class is important in the LaTeX world. We will consider two examples of this using the lettre document class. Next, we will consider a small fraction of a bigger LaTeX problem: the ... [more ▼]

Customizing a document class is important in the LaTeX world. We will consider two examples of this using the lettre document class. Next, we will consider a small fraction of a bigger LaTeX problem: the details of character encoding. [less ▲]

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See detailDominique A trois fois
Demoulin, Laurent ULg

E-print/Working paper (2012)

Triple actualité pour Dominique A: un nouveau disque, une tournée de concerts, un livre dans lequel il réfléchit, de façon ouverte et nuancée, à la question de l'identité et des origines.

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See detailComoment Risk and Stock Returns
Lambert, Marie ULg; Hübner, Georges ULg

E-print/Working paper (2012)

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See detailNancy Huston, Urgence d'écrire
Dor, Juliette ULg

E-print/Working paper (2012)

CR de "Reflets dans un œil d'homme"

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See detailLes littératures selon Nicolas Ancion
Demoulin, Laurent ULg

E-print/Working paper (2012)

Compte rendu du roman de Nicolas Ancion "La Cravate de Simenon" paru dans une collection destinée à l'apprentissage du français.

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