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See detailL'intervention de l'assureur dans le procès pénal : la défense de ton assuré tu assumeras ?
Michiels, Olivier ULg

in Revue de la Faculté de Droit de l'Université de Liège (2017), 2017/1

L'article aborde l'intervention de la compagnie d'assurance dans le procès pénal. Il envisage le contenu de l'article 153 § 5 de la loi du 4 avril 2014 relative aux assurances, les possibilités de défense ... [more ▼]

L'article aborde l'intervention de la compagnie d'assurance dans le procès pénal. Il envisage le contenu de l'article 153 § 5 de la loi du 4 avril 2014 relative aux assurances, les possibilités de défense de l'assureur du prévenu face à la personne lésée et les incidences des moyens et prétentions de l'assureur sur la défense pénale de son assuré prévenu. [less ▲]

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See detailExercices d'analyse complexe
Dubussy, Christophe ULg

Learning material (2017)

Ce livre d'exercices est destiné aux étudiants de second bloc en sciences mathématiques. Il vise à compléter le cours théorique "Analyse II, 2e partie" et à servir de base pour les séances de travaux ... [more ▼]

Ce livre d'exercices est destiné aux étudiants de second bloc en sciences mathématiques. Il vise à compléter le cours théorique "Analyse II, 2e partie" et à servir de base pour les séances de travaux pratiques. Chaque pan du cours est structuré en chapitre et illustré par de nombreux exercices de difficulté variable. [less ▲]

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See detailGenomewide association of piglet responses to infection with one of two porcine reproductive and respiratory syndrome virus isolates.
Waide, E. H.; Tuggle, C. K.; Serao, N. V. L. et al

in Journal of Animal Science (2017), 95(1), 16-38

Porcine reproductive and respiratory syndrome (PRRS) is a devastating disease in the swine industry. Identification of host genetic factors that enable selection for improved performance during PRRS virus ... [more ▼]

Porcine reproductive and respiratory syndrome (PRRS) is a devastating disease in the swine industry. Identification of host genetic factors that enable selection for improved performance during PRRS virus (PRRSV) infection would reduce the impact of this disease on animal welfare and production efficiency. We conducted genomewide association study (GWAS) analyses of data from 13 trials of approximately 200 commercial crossbred nursery-age piglets that were experimentally infected with 1 of 2 type 2 isolates of PRRSV (NVSL 97-7985 [NVSL] and KS2006-72109 [KS06]). Phenotypes analyzed were viral load (VL) in blood during the first 21 d after infection (dpi) and weight gain (WG) from 0 to 42 dpi. We accounted for the previously identified QTL in the region on SSC4 in our models to increase power to identify additional regions. Many regions identified by single-SNP analyses were not identified using Bayes-B, but both analyses identified the same regions on SSC3 and SSC5 to be associated with VL in the KS06 trials and on SSC6 in the NVSL trials ( < 5 x 10); for WG, regions on SSC5 and SSC17 were associated in the NVSL trials ( < 3 x 10). No regions were identified with either method for WG in the KS06 trials. Except for the region on SSC4, which was associated with VL for both isolates (but only with WG for NVSL), identified regions did not overlap between the 2 PRRSV isolate data sets, despite high estimates of the genetic correlation between isolates for traits based on these data. We also identified genomic regions whose associations with VL or WG interacted with either PRRSV isolate or with genotype at the SSC4 QTL. Gene ontology (GO) annotation terms for genes located near moderately associated SNP ( < 0.003) were enriched for multiple immunologically (VL) and metabolism- (WG) related GO terms. The biological relevance of these regions suggests that, although it may increase the number of false positives, the use of single-SNP analyses and a relaxed threshold also increased the identification of true positives. In conclusion, although only the SSC4 QTL was associated with response to both PRRSV isolates, genes near associated SNP were enriched for the same GO terms across PRRSV isolates, suggesting that host responses to these 2 isolates are affected by the actions of many genes that function together in similar biological processes. [less ▲]

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See detailStudy Protocol: Effect of prenatal wheel-running exercise (before and during gestation) on cocaine psychomotor sensitization expressed in the offspring in periadolescent females and males C57BL/6J mice
Lespine, Louis-Ferdinand ULg; Plenevaux, Alain ULg; Tirelli, Ezio ULg

E-print/Working paper (2017)

The present study principally aims at determining to which extent prenatal exercise (before and during gestation) could affect the initiation (establishment) and the expression of psychomotor ... [more ▼]

The present study principally aims at determining to which extent prenatal exercise (before and during gestation) could affect the initiation (establishment) and the expression of psychomotor sensitization induced by a representative dose of cocaine in young female and male mice. More specifically, we will assess cocaine-induced acute psychomotor-activating effects, psychomotor sensitization developing over 9 daily sessions (daily peritoneal injections of cocaine or saline) and the long-term expression of the sensitized response (30 days after the last sensitizing injection) in C57BL/6J mice born from mothers housed with or without a running wheel before and during gestation. Based on literature and on our prior results, the mice born from exercised mothers are expected to show significantly reduced levels of cocaine responsiveness in comparison with the control mice (born from unexercised mothers). [less ▲]

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See detailPerformance-Based Financing in the heath sector in low- and middle-income countries: Is there anything whereof it may be said, See, this is new?
Paul, Elisabeth ULg; Renmans, Dimitri

in International Journal of Health Planning and Management (2017)

Whereas performance‐based financing (PBF) is nowdeveloping fast in the health sector in low‐ and middle‐income countries and is presented an innovative approach—concomitantly, subject to a separate ... [more ▼]

Whereas performance‐based financing (PBF) is nowdeveloping fast in the health sector in low‐ and middle‐income countries and is presented an innovative approach—concomitantly, subject to a separate research stream—it sharesmany features of the “managing for results” (MfR) and performance‐based budgeting (PBB) currents that have existed for decades. In this paper, we first argue that PBF as currently developed in the health sector in low‐ and middle‐income countries shares many features and thus can be viewed as an avatar of MfR andmore precisely PBB. Secondly,we drawlessons fromthe literature on MfR and PBB so as to (1) better apprehend PBF conceptually and (2) avoid pitfalls and better design PBF schemes in practice. We argue that the lessons from the theoretical and empirical literature on MfR and PBB offer interesting insights to feed into a “theory of change” of PBF, enabling to analyse critical aspects and better design PBF schemes. Moreover, it is hoped that just like MfR processes have been demonstrated as having the potential to boost individual performance not only through links with financial incentives but also through acting on other sources of motivation, one can demonstrate more accurately by which mechanisms the various elements of the PBF package can help improve health sector results. [less ▲]

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See detailExperimental validation of footprint models for eddy covariance CO2 flux measurements above grassland by means of natural and artificial tracers
Arriga, Nicola; Rannik, Üllar; Aubinet, Marc ULg et al

in Agricultural and Forest Meteorology (2017), 242

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See detailInterventions du support
Durand, Pascal ULg; Servais, Christine ULg

in Durand, Pascal; Servais, Christine (Eds.) L'intervention du support. Médiation esthétique et énonciation éditoriale (2017)

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See detailEffects of the soil pore network architecture on the soil’s physical functionnalities
Smet, Sarah ULg; Beckers, Eléonore ULg; Léonard, Angélique ULg et al

in Geophysical Research Abstracts (2017), 19

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See detailL'intervention du support. Médiation esthétique et énonciation éditoriale
Servais, Christine ULg; Durand, Pascal ULg

Book published by Presses de L'Université de Liège (2017)

SOMMAIRE DE L’OUVRAGE • Pascal Durand et Christine Servais, Interventions du support Première partie. Médiations esthétiques : les espaces de l’œuvre • Guy Lelong, Révolutions de support – de la poésie à ... [more ▼]

SOMMAIRE DE L’OUVRAGE • Pascal Durand et Christine Servais, Interventions du support Première partie. Médiations esthétiques : les espaces de l’œuvre • Guy Lelong, Révolutions de support – de la poésie à l’architecture. Mallarmé, Buren, Grisey, Rahm • Didier Plassard, Du théâtre de marionnettes au théâtre avec marionnettes : analyse d’un changement de paradigme • Christine Servais, Les Lumière de la ville : cinéma des premiers temps et espace urbain • Bernard Lamizet, Médiation esthétique, médiation urbaine, espace de la ville Deuxième partie. L’œuvre support : aspects de l’énonciation éditoriale • Marie-Ève Thérenty Les Œuvres complètes, testament éditorial de l’écrivain : Joseph Kessel ou le triomphe de l’œuvre-vie • Bertrand Legendre, Les supports du livre : luxe, calme et volupté ? • Tanguy Habrand, Du paratexte à l’image de marque : Hubert Nyssen, concepteur d’Actes Sud • Marc-Emmanuel Mélon, Le support et la commande : la « croisière » photographique d’Hubert Nyssen en Algérie • Nancy Delhalle, Le paradoxe de l’amateur de théâtre : du Théâtre de Plans aux Ruines de Rome d’Hubert Nyssen Troisième partie. Horizons numériques : le vidéo-ludique • Julie Delbouille, Esthétique des supports vidéoludiques • Pierre-Yves Hurel, Jeu vidéo amateur : des supports et des positionnements [less ▲]

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See detailWhen farmers learn through dialog with their practices: A proposal for a theory of action for agricultural trajectories
Brédart, David ULg; Stassart, Pierre M ULg

in Journal of Rural Studies (2017), 53(C), 1-13

Using pragmatic sociology, we studied feed autonomy in mixed livestock-crop farming in the western region of Belgium (Hainaut Province). In this paper we first describe feed autonomy as an innovation ... [more ▼]

Using pragmatic sociology, we studied feed autonomy in mixed livestock-crop farming in the western region of Belgium (Hainaut Province). In this paper we first describe feed autonomy as an innovation structured around the withdrawal of soybeans and corn from cattle rations. In so doing, we approach feed autonomy as an opportunity for farmers to change their relationships with the soil, plants, animals, and other human beings and reconnect harmful situations to their courses of action. We then show (1) how this withdrawal is accompanied by adaptation in breeding practices (through reconfigurations of cognitive processes and practices) and (2) how events that interrupt the farmer's normal course of action require the farmers to develop their attentiveness to, i.e., their abilities to heed various elements to allow for variability and guide their actions. We therefore propose a theory of action in which learning is the result of surprises, of what destabilizes the farmer and raises doubt in her/his mind about her/his practices. To do that, we take inspiration from John Dewey's work and his notion of experience. Our results question the conceptualization of the trajectory that represents the process of change as a series of sequences with the event as a trigger. Indeed, we understand change to be a constant process of adjusting goals and means that is punctuated by events that become events only when attention is given to them. So, the event itself is no longer the trigger, and understanding adaptation in a trajectory's direction hinges more on the attention that is paid to the event. [less ▲]

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See detailExploring the links between community-based governance and sustainable energy use: Quantitative evidence from Flanders
Bauwens, Thomas ULg; Eyre, Nick

in Ecological Economics (2017), 137

Community-based energy organizations have been said to influence their members' energy-related behavior by activating social norms and by providing trustworthy information about sustainable energy ... [more ▼]

Community-based energy organizations have been said to influence their members' energy-related behavior by activating social norms and by providing trustworthy information about sustainable energy investments and behaviors. However, little is known yet about members' actual energy use and how it differs from that of individuals who do not participate in such projects. In particular, selection effects are likely to arise, i.e. community-based energy projects may attract people that are different from the underlying population in terms of energy use. This article empirically addresses the question of the selection into community-based energy projects in terms of energy use, focusing on the case of renewable energy cooperatives. Based on quantitative data from an original survey conducted with one renewable energy cooperative in Flanders and using probit regression analyses, it contrasts a sample of cooperative members with an appropriate comparison group in terms of electricity usage. The results show that electricity consumption is positively related with cooperative membership, suggesting that high use consumers have greater incentives to join a community-based organization which provides assistance and advice on the adoption of green technologies and energy efficiency measures. These findings contribute to an understanding of the relationship between community-based governance and sustainable energy practices. [less ▲]

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See detailCrossing the dividing surface of transition state theory. IV. Dynamical regularity and dimensionality reduction as as key features of reactive trajectories
Lorquet, Jean-Claude ULg

in The Journal of Chemical Physics (2017), 146

The atom-diatom interaction is studied by classical mechanics using Jacobi coordinates (R, r, θ). Reactivity criteria that go beyond the simple requirement of transition state theory (i.e., PR* > 0) are ... [more ▼]

The atom-diatom interaction is studied by classical mechanics using Jacobi coordinates (R, r, θ). Reactivity criteria that go beyond the simple requirement of transition state theory (i.e., PR* > 0) are derived in terms of specific initial conditions. Trajectories that exactly fulfill these conditions cross the conventional dividing surface used in transition state theory (i.e., the plane in configuration space passing through a saddle point of the potential energy surface and perpendicular to the reaction coordinate) only once. Furthermore, they are observed to be strikingly similar and to form a tightly-packed bundle of perfectly collimated trajectories in the two-dimensional (R, r) configuration space, although their angular motion is highly specific for each one. Particular attention is paid to symmetrical transition states (i.e., either collinear or T-shaped with C2v symmetry) for which decoupling between angular and radial coordinates is observed, as a result of selection rules that reduce to zero Coriolis couplings between modes that belong to different irreducible representations. Liapunov exponents are equal to zero and Hamilton's characteristic function is planar in that part of configuration space that is visited by reactive trajectories. Detailed consideration is given to the concept of average reactive trajectory, which starts right from the saddle point and which is shown to be free of curvature-induced Coriolis coupling. The reaction path Hamiltonian model, together with a symmetry-based separation of the angular degree of freedom, provide an appropriate framework that leads to the formulation of an effective two-dimensional Hamiltonian. The success of the adiabatic approximation in this model is due to the symmetry of the transition state, not to a separation of time scales. Adjacent trajectories, i.e., those that do not exactly fulfill the reactivity conditions have similar characteristics, but the quality of the approximation is lower. At higher energies, these characteristics persist, but to a lesser degree. Recrossings of the dividing surface then become much more frequent and the phase space volume of initial conditions that generate recrossing-free trajectories decreases. Altogether, one ends up with an additional illustration of the concept of reactive cylinder (or conduit) in phase space that reactive trajectories must follow. Reactivity is associated with dynamical regularity and dimensionality reduction, whatever the shape of the potential energy surface, no matter how strong its anharmonicity, and whatever the curvature of its reaction path. Both simplifying features persist during the entire reactive process, up to complete separation of fragments. The ergodicity assumption commonly assumed in statistical theories is inappropriate for reactive trajectories. [less ▲]

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See detailPrevalence of coma-recovery scale-revised signs of consciousness in patients in minimally conscious state
Wannez, Sarah ULg; Gosseries, Olivia ULg; Azzolini, Deborah et al

in Neuropsychological Rehabilitation (2017)

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See detailA Probabilistic Finite State Logic Machine Realized Experimentally on a Single Dopant Atom
Fresch, Barbara; Bocquel, Juanita; Rogge, Sven et al

in Nano Letters (2017), 17

Exploiting the potential of nanoscale devices for logic processing requires the implementation of computing functionalities departing from the conventional switching paradigm. We report on the design and ... [more ▼]

Exploiting the potential of nanoscale devices for logic processing requires the implementation of computing functionalities departing from the conventional switching paradigm. We report on the design and the experimental realisation of a probabilistic finite state machine in a single phosphorus donor atom placed in a silicon matrix electrically addressed and probed by Scanning Tunneling Spectroscopy (STS). The single atom logic unit simulates the flow of visitors in a maze whose topology is determined by the dynamics of the electronic transport through the states of the dopant. By considering the simplest case of a unique charge state for which three electronic states can be resolved, we demonstrate an efficient solution of the following problem: in a maze of four connected rooms, what is the optimal combination of door opening rates in order to maximize the time that visitors spend in one specific chamber? The implementation takes advantage of the stochastic nature of electron tunneling while the output remains the macroscopic current whose reading can be realized with standard techniques and does not require single electron sensitivity. [less ▲]

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See detailVerrouillage et euristique des transitions agroécologiques
Stassart, Pierre M ULg

Scientific conference (2017)

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See detailSeasonal Transport in Mars’ Mesosphere revealed by Nitric Oxide Nightglow vertical profiles and global images from IUVS/MAVEN
Stiepen, Arnaud ULg; Stewart; Jain et al

Conference (2017)

We analyze the ultraviolet nightglow in the atmosphere of Mars through Nitric Oxide (NO) δ and γ bands emis- sions. On the dayside thermosphere of Mars, solar extreme ultraviolet radiation partly ... [more ▼]

We analyze the ultraviolet nightglow in the atmosphere of Mars through Nitric Oxide (NO) δ and γ bands emis- sions. On the dayside thermosphere of Mars, solar extreme ultraviolet radiation partly dissociates CO2 and N2 molecules. O(3P) and N(4S) atoms are carried by the day-to-night hemispheric transport. They preferentially descend in the nightside mesosphere in the winter hemisphere, where they can radiatively recombine to form NO(C2Π). The excited molecules promptly relax by emitting photons in the UV δ bands and in the γ bands through cascades via the A2Σ, v’ = 0 state. These emissions are thus indicators of the N and O atom fluxes transported from the dayside to Mars’ nightside and the winter descending circulation pattern from the nightside thermosphere to the mesosphere (e.g. Bertaux et al., 2005 ; Bougher et al., 1990 ; Cox et al., 2008 ; Gagné et al., 2013 ; Gérard et al., 2008 ; Stiepen et al., 2015). Observations of these emissions have been accumulated on a large dataset of nightside disk images and vertical profiles obtained at the limb by the Imaging Ultraviolet Spectrograph (IUVS, McClintock et al., 2015) instrument when the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft is at its apoapsis and its periapsis phases along its orbit, respectively. We present discussion on the variability in the brightness, altitude and topside scale height of the emission with season, geographical position and local time and possible interpretation for local and global changes in the meso- sphere dynamics. IUVS images and limb scans reveal unexpected complex structure of the emission. The brightest emission is observed close to the winter pole. The emission is also surprisingly more intense in some sectors located close to the equator : at 120 ̊ and 150 ̊ longitude. Observations also reveal spots and streaks, indicating irregularities in the wind circulation pattern and possible impact of waves and tides. The disk images and limb profiles are compared to the LMD-MGCM model (Gonzàlez-Galindo et al., 2009 ; Lopez-Valverde et al., 2011) to focus on the seasonal, local time and geographical influences on the NO Nightglow emission. We will also provide a statistical study of the regions of enhanced brightness (i.e. splotches and streaks) and discuss possible interpretation from the comparison to the GCM. [less ▲]

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See detailContinuous variables logic via coupled automata using a DNAzyme cascade with feedback
Lilienthal, Sivan; Orbach, Ron; Willner, Itamar et al

in Chemical Science (2017), 8

The concentration of molecules can be changed by chemical reactions and thereby offer a continuous readout. Yet computer architecture is cast in textbooks in terms of binary valued, Boolean variables. To ... [more ▼]

The concentration of molecules can be changed by chemical reactions and thereby offer a continuous readout. Yet computer architecture is cast in textbooks in terms of binary valued, Boolean variables. To enable reactive chemical systems to compute we show how, using the Cox interpretation of probability theory, one can transcribe the equations of chemical kinetics as a sequence of coupled logic gates operating on continuous variables. It is discussed how the distinct chemical identity of a molecule allows us to create a common language for chemical kinetics and Boolean logic. Specifically, the logic AND operation is shown to be equivalent to a bimolecular process. The logic XOR operation represents chemical processes that take place concurrently. The values of the rate constants enter the logic scheme as inputs. By designing a reaction scheme with a feedback we endow the logic gates with a built in memory because their output then depends on the input and also on the present state of the system. Technically such a logic machine is an automaton. We report an experimental realization of three such coupled automata using a DNAzyme multilayer signaling cascade. A simple model verifies analytically that our experimental scheme provides an integrator generating a power series that is third order in time. The model identifies two parameters that govern the kinetics and shows how the initial concentrations of the substrates are the coefficients in the power series. [less ▲]

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See detailConstraining model biases in a global general circulation model with ensemble data assimilation methods
Canter, Martin ULg

Doctoral thesis (2017)

A new method of bias correction using an ensemble transform Kalman filter as data assimilation scheme is developed. The objective is to create a stochastic forcing term which will partially remove the ... [more ▼]

A new method of bias correction using an ensemble transform Kalman filter as data assimilation scheme is developed. The objective is to create a stochastic forcing term which will partially remove the bias from numerical models. The forcing term is considered as a parameter to be estimated through state vector augmentation and the assimilation of observations. The theoretical formulation of this method is introduced in the general context of numerical modelling. A specially designed and modified Lorenz '96 model is studied, and provides a testing environment for this new bias correction method. Several different aspects are considered through both single and iterative assimilation in a twin experiment. The method is then implemented on the global general circulation model of the ocean NEMO-LIM2. The forcing term generation is detailed to respect particular physical constraints. Again, a twin experiment allows to assess the efficiency of the method on a realistic model. The assimilation of sea surface height observations is performed, with sea surface salinity and temperature as control variable. Subsequently, a multivariate assimilation shows further improvement of the bias correction. Finally, the method is confronted to real sea surface height observations from the CNES-CLS09 global mean dynamic topography. A thorough study of the NEMO-LIM2 model response to the bias correction forcing term is proposed, and specific results are highlighted. An iterative assimilation concludes the method investigation. Possible ideas and future developments are suggested. [less ▲]

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See detailPapillomaviruses and cervical neoplasia
Herfs, Michael ULg; Chang, Martin; Crum, Christopher

in Holland-Frei Cancer Medicine, ninth edition (2017)

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