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See detailA single amino acid substitution toggles chloride dependence of the alpha-amylase paralog Amyrel in Drosophila melanogaster and virilis species
Claisse, G.; Feller, Georges ULg; Bonneau, M. et al

in Insect Biochemistry and Molecular Biology (in press)

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See detailThe Taste of the Eye and the Sight of the Tongue. The Relations Between Sight and Taste in Early Modern Europe
Von Hoffmann, Viktoria ULg

in Senses and Society (The) (in press), 11 (2016)(2),

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See detailCultural Marxism : A Survey
Jamin, Jérôme ULg

in Religion Compass (in press)

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See detailStructural insights into 5-HT1A/D4 selectivity of WAY-100635 analogues: molecular modeling, synthesis and in vitro binding
Dilly, Sébastien; Liégeois, Jean-François ULg

in Journal of Chemical Information & Modeling (in press)

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See detailEfficient ANOVA for directional data
Ley, Christophe; Swan, Yvik ULg; Verdebout, Thomas

in Annals of the Institute of Statistical Mathematics (in press)

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See detailQuantification of four Isoflavones in Forages with UPLC®-MS/MS, using the Box-Behnken Experimental Design to Optimize Sample Preparation
Daems, Frédéric ULg; Romnee, Jean-Michel; Rasse, Catherine et al

in Chromatographia (in press)

A performant method for the simultaneous quantification of daidzein, genistein, formononetin and biochanin A in forages using an UPLC®-MS/MS was developed and fully validated. The ultrasound-assisted ... [more ▼]

A performant method for the simultaneous quantification of daidzein, genistein, formononetin and biochanin A in forages using an UPLC®-MS/MS was developed and fully validated. The ultrasound-assisted extraction and enzymatic hydrolysis used in the sample preparation step were optimized using the Box-Behnken experimental design. The optimal extraction conditions used for a representative mix of forage plants were 80°C, 10 min and 55% methanol, and for hydrolysis they were 20°C, 18 h and pH=6. The chromatographic separation was achieved using an Acquity® UPLC® HSS T3 column, with a water/methanol linear gradient containing 0.01% of formic acid at a 0.55 mL min-1 flow rate. The four isoflavones were detected by ESI mass spectrometry in positive ion MRM mode. The method allows high throughput analyses of samples and showed an adequate linear regression model for all isoflavones over a range from 5 to 125 ng mL-1. There was good intra- and inter-day precision (≤ 8.2% and ≤ 7.6%) and accuracy (≤ 11.4% and ≤ 7.1%). The recovery rates were in an acceptable range of 70-120%, except for biochanin A, where the rate was about 50%. Good method repeatability was also observed, and there was no matrix effect or carry-over problem. The sample extracts were stable for at least 6 days of storage at -21°C and 6°C. The method proved to be sensitive, precise and accurate for discriminating a wide variety of forages likely to be grazed by ruminants according to their isoflavone content and to observe the impact storage process on isoflavone content in forages. [less ▲]

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See detailThe “Tuchlein” Colours in the Strasbourg Family Text: Recipes for Anthocyanin Pigments
Neven, Sylvie ULg; Sanyova, Jana

in Dyes in History and Archaeology (in press)

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See detailImplicit spoken words and motor sequences learning are impaired in children with Specific Language Impairment
Desmottes, Lise ULg; Meulemans, Thierry ULg; Maillart, Christelle ULg

in Journal of the International Neuropsychological Society (in press)

Objective. This study aims to compare verbal and motor implicit sequence learning abilities in children with and without Specific Language Impairment (SLI). Methods. Forty-eight children (24 control and ... [more ▼]

Objective. This study aims to compare verbal and motor implicit sequence learning abilities in children with and without Specific Language Impairment (SLI). Methods. Forty-eight children (24 control and 24 SLI) were administered the Serial Search Task (SST), which enables the simultaneous assessment of implicit spoken words and visuomotor sequences learning. Results. Results showed that control children implicitly learned both the spoken words as well as the motor sequences. In contrast, children with SLI showed deficits in both types of learning. Moreover, correlational analyses revealed that SST performance was linked with grammatical abilities in control children but with lexical abilities in children with SLI. Conclusion. Overall, this pattern of results supports the procedural deficit hypothesis and suggests that domain general implicit sequence learning is impaired in SLI. [less ▲]

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See detailTransnational Ageing and the ‘Zero Generation’: The Role of Moroccan Migrants’ Parents in Care Circulation
Zickgraf, Caroline ULg

in Journal of Ethnic and Migration Studies (in press)

This article emphasizes the impacts of international migration on ageing processes and norms within transnational families, and, specifically, analyses the roles of the zero generation, defined as the ... [more ▼]

This article emphasizes the impacts of international migration on ageing processes and norms within transnational families, and, specifically, analyses the roles of the zero generation, defined as the parents of first-generation migrants (Nedelcu 2009), both as non-migrant counterparts to their children abroad and as ageing migrants themselves. Transnational caregiving research has demonstrated that for many migrants and their families care arrangements must be negotiated across national borders, yet the agency of transnational older adults has been largely neglected. Based on qualitative fieldwork conducted from 2011 to 2013 in Liège, Belgium and Oujda, Morocco, the present article examines the circulation of care between Moroccan adult migrants and their ageing ascendants. This article exposes the duality of migrants’ ascendants as care givers and recipients, asserting firstly, that receiving care is not synonymous with passivity, and that, secondly, migrants’ ascendants are also the initiators of transnational practices. In both roles, this article underlines mobility as a strategy used by migrants’ parents to maintain family solidarity across national borders, but that this care mobility is limited by macro-level migration policies, here exemplified by the Belgian migration regime. [less ▲]

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See detailLa "République" de Platon : une leçon de pratique politique ?
Gavray, Marc-Antoine ULg

in Revue Philosophique de Louvain (in press), 115(1),

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See detailL’évaluation de la formation : comment la rendre utile pour les participants ? Constats et proposition de cinq stratégies d’évaluation partenariale
Faulx, Daniel ULg; Danse, Cédric ULg

in Evaluer : Journal International de Recherche en Education et Formation (in press)

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See detailQuadratic reformulations of nonlinear binary optimization problems
Anthony, Martin; Boros, Endre; Crama, Yves ULg et al

in Mathematical Programming (in press)

Very large nonlinear unconstrained binary optimization problems arise in a broad array of applications. Several exact or heuristic techniques have proved quite successful for solving many of these ... [more ▼]

Very large nonlinear unconstrained binary optimization problems arise in a broad array of applications. Several exact or heuristic techniques have proved quite successful for solving many of these problems when the objective function is a quadratic polynomial. However, no similarly efficient methods are available for the higher degree case. Since high degree objectives are becoming increasingly important in certain application areas, such as computer vision, various techniques have been recently developed to reduce the general case to the quadratic one, at the cost of increasing the number of variables. In this paper we initiate a systematic study of these quadratization approaches. We provide tight lower and upper bounds on the number of auxiliary variables needed in the worst-case for general objective functions, for bounded-degree functions, and for a restricted class of quadratizations. Our upper bounds are constructive, thus yielding new quadratization procedures. Finally, we completely characterize all ``minimal'' quadratizations of negative monomials. [less ▲]

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See detailEffect of Dietary Energy on Productive and Reproductive Performance of Algerian Local Rabbit Does and Their Litters
Saidj, Dahia; Ainbaziz, H.; Salhi, O. et al

in Animal Nutrition and Feed Technology (in press)

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See detailActivity-stability relationships revisited in blue oxidases catalyzing electron transfer at extreme temperatures
Roulling, F.; Godin, Amandine ULg; Cipolla, A. et al

in Extremophiles : Life Under Extreme Conditions (in press)

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See detailDynamic single-cell analysis of Saccharomyces cerevisiae under process perturbation: comparison of different methods for monitoring the intensity of population heterogeneity
Delvigne, Frank ULg; Baert, Jonathan ULg; Gofflot, Sébastien et al

in Journal of Chemical Technology & Biotechnology (in press)

BACKGROUND: Single cell biology has attracted a lot of attention these past few years and has led to numerous fundamental results pointing out the heterogeneity of clonal cell populations. In this context ... [more ▼]

BACKGROUND: Single cell biology has attracted a lot of attention these past few years and has led to numerous fundamental results pointing out the heterogeneity of clonal cell populations. In this context, microbial phenotypic heterogeneity under bioprocessing conditions needs to be further investigated. In this study, yeast based processes have been investigated by using on-line flow cytometry in combination with a fluorescent transcriptional reporter (GFP) and viability fluorescence tags (propidium iodide, PI). Methods aiming at expressing the dispersion of these fluorescence tags among the yeast populations have been investigated for different bioreactor operating conditions. RESULTS: Yeast viability was determined on the basis of PI uptake. Segregation between PI negative and positive subpopulations could be efficiently quantified on the basis of the mean-to-median ratio or the amplitude of the interquartile range. On the other hand, the same quantification could not be made for the segregation occurring at the level of GFP synthesis. Indeed, when cells were exposed to sub-lethal or mild stresses (such as in scale-down reactors) two GFP subpopulations could be visualized by real-time FC, but quantification by one of the above-mentioned methods was not possible. CONCLUSIONS: Yeast population heterogeneity was observed in representative bioreactor operating conditions. Difficulties for the determination of segregation at the level of GFP synthesis point out the fact that one needs to understand the segregation mechanisms for the applied fluorescent reporters, to judge whether simple mathematical tools may be applied or if more sophisticated computational tools are needed for the quantification of the microbial population segregation. [less ▲]

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See detailLes Trois Trois Petits Cochons et le Grand Méchant Loup. La rencontre de deux archétypes
Jousten, Lison ULg

in La revue des lettres modernes (in press)

Image de la menace par excellence, le Grand Méchant Loup est un adversaire dont on ne compte plus les apparitions, notamment dans les fictions destinées au jeune public. Dans Les Trois Petits Cochons, qui ... [more ▼]

Image de la menace par excellence, le Grand Méchant Loup est un adversaire dont on ne compte plus les apparitions, notamment dans les fictions destinées au jeune public. Dans Les Trois Petits Cochons, qui s’impose comme cas d’école parmi ces récits où surgit l’animal redouté, le loup devient l’ennemi du cochon, une créature traditionnellement associée à l’enfance. Ce tandem, qui repose sur un principe général d’opposition, brasse avec lui une série de représentations qui transparaissent en filigrane. Le détour opéré par l’histoire culturelle du cochon et quelques-uns de ses prolongements cinématographiques permet de dessiner progressivement les contours de la place occupée par le loup dans ce conte. [less ▲]

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See detailEnjeux politiques et critiques d'une philosophie des normes
Caeymaex, Florence ULg; Pieron, Julien ULg

in Dissensus (in press)

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See detailA framework to identify housing location patterns using profile Hidden Markov Models
Saadi, Ismaïl ULg; Liu, Feng; El Saeid Mustafa, Ahmed Mohamed ULg et al

in Advanced Science Letters (in press)

The determination of comprehensive activity-travel patterns is important in the context of agent-based micro-simulation modelling. This paper presents an improved method based on profile Hidden Markov ... [more ▼]

The determination of comprehensive activity-travel patterns is important in the context of agent-based micro-simulation modelling. This paper presents an improved method based on profile Hidden Markov Models (pHMMs) able to include information related to the agents’ residential locations. As proposed in the framework of Liu et al. (2015), pHMMs only characterize activity-travel patterns from the activity sequences perspective. In this context, information related to the primary activity locations (e.g. home, work) is not available and, as a result, it cannot be extracted from the pHMMs themselves. With respect to this limitation, we propose to apply the framework of Liu et al. (2015) with an extension to include characterization of residential locations. Following the established guidelines, the activity sequences and their related residential locations are extracted from the activity-travel diaries in order to estimate the regularity of the activities as well as their sequential order. Subsequently, within each residential activity, we include a categorization at an aggregate level (provinces). The methodology is powerful as it characterizes any length of sequence, allowing the generation of unlimited agent plans with information about residential location. Regarding data collection, the activity-travel diaries are provided by the Belgian Household Daily Travel Survey (2010). The results obtained after the simulations indicate a good match between the predicted and observed residential locations at both the national and provincial levels. [less ▲]

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See detailThe Added-value of Using Participatory Approaches to Assess the Acceptability of Surveillance Systems: The Case of Bovine Tuberculosis in Belgium
Calba, C; Goutard, FL; Vanholme, L et al

in PLoS ONE (in press)

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See detailNotice brève sur l'ouvrage de O. Dubreucq : L'instruction des laïcs de Jonas d'Orléans
Close, Florence ULg

in Revue d'Histoire Ecclésiastique (in press)

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See detailOrigine et histoire de la folie : un nouveau Foucault, un nouveau fou
Englebert, Jérôme ULg

in Evolution Psychiatrique (in press)

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See detailFrom mechanical to chemical impact of anchoring in seagrasses: the premises of anthropogenic patch generation in Posidonia oceanica meadows
Abadie, Arnaud ULg; Lejeune, Pierre; Pergent, Gérard et al

in Marine Pollution Bulletin (in press)

Intensive anchoring of leisure boats in seagrass meadows leads to mechanical damages. This anthropogenic impact creates bare mat patches that are not easily recolonized by the plant. Several tools are ... [more ▼]

Intensive anchoring of leisure boats in seagrass meadows leads to mechanical damages. This anthropogenic impact creates bare mat patches that are not easily recolonized by the plant. Several tools are used to study human impacts on the structure of seagrass meadows but they are not able to assess the indirect and long term implication of mechanical destruction. We chose to investigate the possible changes in the substrate chemistry given contrasted boat impacts. Our observations show that hydrogen sulfide concentrations remain high at 15 and 20 m depth (42.6 µM and 18.8 µM) several months after the highest period of anchoring during the summer. Moreover, our multidisciplinary study reveals that anchoring impacts of large boats at 15 and 20 m depth can potentially change the seascape structure. By taking into account both structural and chemical assessments, different managing strategies must be applied for coastal areas under anthropogenic pressures. [less ▲]

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See detailComparison of local outliers detection techniques in spatial multivariate data
Ernst, Marie ULg; Haesbroeck, Gentiane ULg

in Data Mining & Knowledge Discovery (in press)

Outlier detection techniques in spatial data should allow to identify two types of outliers: global and local ones. Local outliers typically have non-spatial attributes that strongly differ from those ... [more ▼]

Outlier detection techniques in spatial data should allow to identify two types of outliers: global and local ones. Local outliers typically have non-spatial attributes that strongly differ from those observed on their neighbors. Detecting local outliers requires to be able to work locally, on neighborhoods, in order to take into account the spatial dependence between the statistical units under consideration, even though the outlyingness is usually measured on the non-spatial variables. Many procedures have been outlined in the literature, but their number reduces when one wants to deal with multivariate non-spatial attributes. In this paper, focus is on the multivariate context. A review of existing procedures is done. A new approach, based on a two-step improvement of an existing one, is also designed and compared with the benchmarked methods by means of examples and simulations. [less ▲]

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See detailContribution à un lexique épigraphique: "deltographéma"
Famerie, Etienne ULg

in Zeitschrift für Papyrologie und Epigraphik (in press)

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See detailComputerized adaptive testing with R: Recent updates of the package catR
Magis, David ULg; Barrada, Juan Ramon

in Journal of Statistical Software (in press)

The purpose of this paper is to list the recent updates of the R package catR. This package allows for generating response patterns under a computerized adaptive testing (CAT) framework with underlying ... [more ▼]

The purpose of this paper is to list the recent updates of the R package catR. This package allows for generating response patterns under a computerized adaptive testing (CAT) framework with underlying item response theory (IRT) models. Among the most important updates, well-known polytomous IRT models are now supported by catR; several item selection rules have been added; and it is now possible to perform post-hoc simulations. Some functions were also rewritten or withdrawn to improve the usefulness and performances of the package. [less ▲]

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See detailRéduire l’altérité au travers des processus de traduction et de représentation
Leclercq, Bruno ULg; Smette, Bernard ULg

in Doctorales. Revue LLA-SHS de Montpellier (in press)

WVO Quine questions the « myth » of an ideal realm of shared meanings which every national language would express in its own way. Against the hope of transparent translations, he insists on the necessity ... [more ▼]

WVO Quine questions the « myth » of an ideal realm of shared meanings which every national language would express in its own way. Against the hope of transparent translations, he insists on the necessity for building equivalences from one language to another through a strategy of reducing the differences in rationality among nations as much as possible. According to Quine, otherness is not insuperable impediment to meeting/encounter and mutual understanding ; by throwing our conceptual schemes on the other communities’ uses/practices – which of course involves some symbolic violence – gaps can always been narrowed. Similarly E. Laclau questions the traditional conception of political representation, which is seen as the transparent process of transmitting someone’s will or interests on another level. For this ideal conception of representation, Laclau substitutes a pragmatic conception which takes in account the irreducible gap between the actors as well as the constitutive opacity of the process of representation : the subject’s will is constituted within the process of representation and through the representative’s productive role. In order to be transposed at the decision-making level, the subject’s interests must be translated by the representative as well as be negotiated with the other represented interests. This implies that the initial will undergoes some identity transformations. [less ▲]

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See detailAberrations chromatiques : de l’émulsion au pixel
Thonon, Jonathan ULg

in Cahiers Louis Lumière (in press)

Dans l’une de ses conversations avec Joachim Gasquet sur le sens de sa peinture (et de la peinture en général), Cézanne aborde de front la conception qu’il se fait de la couleur, dans son rapport à la ... [more ▼]

Dans l’une de ses conversations avec Joachim Gasquet sur le sens de sa peinture (et de la peinture en général), Cézanne aborde de front la conception qu’il se fait de la couleur, dans son rapport à la profondeur picturale et de son articulation à la surface : « La nature n'est pas en surface ; elle est en profondeur. Les couleurs sont l'expression, à cette surface, de cette profondeur. Elles montent des racines du monde ». Cet « organisme de couleurs » que constitue le monde est transcrit dans la peinture de Cézanne par une dynamique symbiotique de la couleur et du dessin, de la ligne et du pan. La couleur restitue, par sa masse, son surgissement, son homogénéité, presque sa viscosité, la véritable chaire perceptive du monde ; une vision qui tient à distance la perspective géométrique, photographique, cinématographique fondée sur la transparence et qui repose, comme le signale Merleau-Ponty, sur la « réversibilité des dimensions » (surface-profondeur) et l’entrelacement des choses. C’est cette épaisseur du visible rendu par la couleur que l’économie de l’image numérique nous permet de redécouvrir, moins dans le registre de la « tactilité » de l’image et la picturalité du pixel, que par l’intégration, entre le support et l’image (parfois indiscernables dans le régime optique), d’un « corps » algorithmique qui règle l’actualisation du visible. Certains défauts techniques du dispositif numérique, aujourd’hui élevés au rang de pratique artistique, permettent de révéler cette matrice qui utilise alors la couleur et la coulure comme mode de visibilité. C’est le cas du Datamoshing, technique de composition numérique qui revisite tout en la radicalisant la pratique de l’incrustation vidéo. Basée sur la perturbation volontaire d’éléments de la matrice, cette technique transforme les couleurs en une forme malléable et fluide révélant ainsi leur double nature spatiale : elles sont à la fois dans l’espace de l’image et l’espace de l’image lui-même. Ces expériences de défigurations d’images s’inscrivent dans le registre des « aberrations chromatiques » dont nous proposons ici une rapide généalogie avant d’interroger la couleur digitale dans ses spécificités. [less ▲]

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See detailSur Capitalisme, désir et servitude. Lettre à Frédéric Lordon
Pieron, Julien ULg

in Dissensus (in press), 6(printemps 2014),

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See detailPost-embryonic development of sheepshead minnow Cyprinodon variegatus: a staging tool based on externally visible anatomical traits
Schnitzler, Joseph ULg; Dussenne, Mélanie ULg; Frederich, Bruno ULg et al

in Ichthyological Research (in press)

The sheepshead minnow Cyprinodon variegatus has become a favoured model for laboratory studies because of their small size, rapid development, and tolerance of laboratory conditions. Here, we analyse ... [more ▼]

The sheepshead minnow Cyprinodon variegatus has become a favoured model for laboratory studies because of their small size, rapid development, and tolerance of laboratory conditions. Here, we analyse sheepshead minnow post-embryonic development with the goal of providing a generally useful method for staging fish after embryogenesis. Groups of three females and two males were placed in breeding chambers designed for this experiment. More than 100 eggs were collected and maintained in seawater. Embryos were selected under a dissection microscope and placed in incubation dishes (50 per dish) at 26 °C. On day six, embryos hatched and larvae were transferred to 1 L beakers. To define a simplified normalization table for sheepshead minnow development, we measured each fish for its standard length and examined the fish for four externally evident traits: pigmentation pattern, caudal fin morphology, anal fin morphology, and dorsal fin morphology. The four traits were chosen, because they are easily visualized with standard laboratory equipment such as the stereomicroscope and camera. We have provided criteria for staging sheepshead minnows in studies of post-embryonic development. Our data suggest that dorsal and anal fin morphology may serve as a useful phenotype for defining metamorphic climax stages throughout post-embryonic development in C. variegatus. The staging systems we propose should facilitate detailed anatomical and developmental analyses in relation to ecotoxicological studies on potential disruption of the thyroid axis by xenobiotics and endocrine-disrupting compounds. [less ▲]

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See detailHow can a steel structure survive to impact loading? Numerical and analytical investigations
Demonceau, Jean-François ULg; Comeliau, Ludivine; Hoang, Van Long ULg et al

in Open Civil Engineering Journal (The) (in press)

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under exceptional events. For more than 10 years, the ... [more ▼]

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under exceptional events. For more than 10 years, the University of Liege is strongly involved in researches investigating the response of structures further to such exceptional events ([1] and [2]). The present paper gives a global overview on recent or ongoing developments performed at the University of Liege in the field of robustness of steel building structures subjected to impact loading leading to the loss of a column. The conducted studies are founded on a combination of experimental, numerical and analytical approaches with the final aim to propose simplified procedures useful for practitioners and allowing ensuring an appropriate level of robustness to structures for the considered scenario [less ▲]

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See detailOn the finiteness of the weighted likelihood estimator of ability
Magis, David ULg; Verhelst, Norman

in Psychometrika (in press)

The purpose of this note is to focus on the finiteness of the weighted likelihood estimator (WLE) of ability in the context of dichotomous and polytomous item response theory (IRT) models. It is ... [more ▼]

The purpose of this note is to focus on the finiteness of the weighted likelihood estimator (WLE) of ability in the context of dichotomous and polytomous item response theory (IRT) models. It is established that the WLE always returns finite ability estimates. This general result is valid for dichotomous (one-, two-, three- and four-parameter logistic) IRT models, the class of polytomous difference models and divide-by-total models, independently of the number of items, the item parameters and the response patterns. Further implications of this result are outlined. [less ▲]

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See detailMeasurement of circulating 25-hydroxyvitamin D: A historical review
Delvin, Edgar; LE GOFF, Caroline ULg; CAVALIER, Etienne ULg et al

in Practical Laboratory Medicine (in press)

The constantly increasing requests for the measurement of serum 25-hydroxyvitamin D over the last years has led reagent manufacturers to market different automated and semi-automated methods, that being ... [more ▼]

The constantly increasing requests for the measurement of serum 25-hydroxyvitamin D over the last years has led reagent manufacturers to market different automated and semi-automated methods, that being unfortunately not fully harmonized, yield different results. Liquid chromatography coupled to tandem mass spectrometry (LC/MS2) has more recently been introduced. This approach allows the distinction between the two forms of 25-hydroxyvitamin D and to measure other metabolites. This approach also requires harmonization to curtail the differences between the different analytical methods. To meet this requirement, the American National Institutes of Health (NIH), the CDC (Centre for Disease Control and Prevention) in Atlanta, the NIST (National Institute of Standards and Technology) and the vitamin D Reference laboratory of Ghent University have pooled their expertise to develop a standardization program. This article reviews the main elements and the difficulties of the automated and semi-automated methods for 25-hydroxyvitamin D, from sample preparation to the analytical phase, as well as those related to mass spectrometry. It also addresses the issues related to the clinical decision thresholds and the possibility of measurements in different biological liquids. [less ▲]

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See detailOutplacement adequacy and benefits: The mediating role of overall justice.
Marzucco, Laurence ULg; Hansez, Isabelle ULg

in Journal of Employment Counseling (in press)

Despite a rapid growth and an ongoing need for outplacement services, little is yet known about the perceived adequacy and benefits of these services for redundant employees using them. We surveyed 360 ... [more ▼]

Despite a rapid growth and an ongoing need for outplacement services, little is yet known about the perceived adequacy and benefits of these services for redundant employees using them. We surveyed 360 Belgian redundant employees (i.e., clients) using outplacement services provided by a public employment agency. The results indicate that an outplacement experience perceived as adequate for clients fosters their overall impressions of justice towards the dismissing organization; this leads in turn to benefits for them: reduction of negative emotions, enhancement of their perceived well-being, future perspectives, and job-seeking activities - confirming the mediating role of overall justice. [less ▲]

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See detailA Quantitative Doignon-Bell-Scarf theorem
Aliev, Iskander; Bassett, Robert; De Loera, Jesus et al

in Combinatorica (in press)

The famous Doignon-Bell-Scarf theorem is a Helly-type result about the existence of integer solutions to systems of linear inequalities. The purpose of this paper is to present the following quantitative ... [more ▼]

The famous Doignon-Bell-Scarf theorem is a Helly-type result about the existence of integer solutions to systems of linear inequalities. The purpose of this paper is to present the following quantitative generalization: Given an integer k, we prove that there exists a constant c(n,k), depending only on the dimension n and on the number k, such that if a bounded polyhedron {x in R^n : Ax <= b} contains exactly k integer points, then there exists a subset of the rows, of cardinality no more than c(n,k), defining a polyhedron that contains exactly the same k integer points. In this case c(n,0)=2^n as in the original case of Doignon-Bell-Scarf for infeasible systems of inequalities. We work on both upper and lower bounds for the constant c(n,k) and discuss some consequences, including a Clarkson-style algorithm to find the l-th best solution of an integer program with respect to the ordering induced by the objective function. [less ▲]

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See detailDe l’usage de la photographie dans une enquête ethno-sociologique sur la mémoire de l’exil et de l’immigration espagnols en Belgique
Molina Marmol, Maïté ULg

in RELAIS Revue du laboratoire d'études et de recherches sur l'interculturel (in press)

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See detailRwanda. À travers nous l'humanité de Marie-France Collard : Du théâtre au documentaire
Jousten, Lison ULg

in En jeu. Histoire et mémoires vivantes (in press)

Rwanda. Through us, humanity (2005), a movie by Marie-France Collard, follows on from the play Rwanda 94, a project in which she tool part as a author and videographer. Showcased in 2000, the play arises ... [more ▼]

Rwanda. Through us, humanity (2005), a movie by Marie-France Collard, follows on from the play Rwanda 94, a project in which she tool part as a author and videographer. Showcased in 2000, the play arises questions about memory, representation, and commitment. The documentary was carried out during artist collective Groupov's tour in Kigaly on the occasion of the commemoration of the genocide's tenth anniversary. It brings those topics up again, gets back to the reception of the play by the Rwandan audience and, in a broader way, to a country in mourning. [less ▲]

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See detailThe need for predictive, prognostic, objective and complementary blood-based biomarkers in osteoarthritis (OA)
Bay-Jensen, Anne-Christine; Henrotin, Yves ULg; Karsdal, Morten et al

in Ebiomedicine (in press)

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See detailL'espace transitionnel winnicotien et l'_Urraum_ kantien
Seba, Jean-Renaud ULg

in Revista Natureza Humana (in press)

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See detailRelationship between thiamine and subacute ruminal acidosis induced by a high-gran diet in dairy cows
Pan, Xiaohua; Yang, L.; Xue, F.G. et al

in Journal of Dairy Science (in press)

Two experiments were conducted to reveal the effects of grain-induced subacute rumen acidosis (SARA) on thiamine status in blood and rumen fluid in dairy cows. In both experiments, 6 multiparous, rumen ... [more ▼]

Two experiments were conducted to reveal the effects of grain-induced subacute rumen acidosis (SARA) on thiamine status in blood and rumen fluid in dairy cows. In both experiments, 6 multiparous, rumen-fistulated Holstein dairy cows were used in a 2-treatment, 2-period crossover design. Each experimental period consisted of 21 d (total of 42 d). Experiment 1 was to investigate the effects of SARA on thiamine status in blood and rumen fluid. Treatments were either control (20% starch, dry matter basis) or SARA-inducing diet (SAID, 33.2% starch, dry matter basis). In experiment 2, the effects of dietary thiamine supplementation on attenuating SARA and ruminal fermentation characteristics in dairy cows were studied. All cows received the same SAID diet during the whole experimental period; treatments were with or without thiamine (180 mg of thiamine/kg of dry matter intake). In both experiments, rumen fluid samples were collected at 0, 3, 6, 9, and 12 h after morning feeding on d 21 and 42 of the experiments for measurement of pH, thiamine, volatile fatty acid, and lactate contents. Peripheral blood was also collected at 3 h after morning feeding on d 21 and 42 to measure thiamine, carbohydrate metabolites, and enzyme activities. In experiment 1, cows fed the SAID diet had lower ruminal and plasma thiamine concentrations and higher lactate than cows fed the control diet. The ruminal thiamine contents were positively related to pH and the concentrations of acetate in the rumen, and negatively correlated with the lactate contents. Experiment 2 demonstrated that ruminal pH and the concentrations of thiamine, acetate, and total volatile fatty acids in the rumen were increased, whereas ruminal lactate contents were reduced by thiamine supplementation. The concentrations of lactate and the activity of lactate dehydrogenase in blood were reduced in the thiamine supplemented group, and the opposite was true for the nonesterified fatty acids and α-ketoneglutarate dehydrogenase contents. In conclusion, the thiamine status was affected by SARA in dairy cows and ruminal infusion of thiamine could helpattenuate SARA by improving the proportions of ruminal volatile fatty acids and reducing lactate contents in rumen fluid and blood. [less ▲]

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See detailCompte-rendu de l'ouvrage de Boyd Taylor COOLMAN et Dale M. COULTER : Trinity and creation
Close, Florence ULg

in Cahiers de Civilisation Médiévale (in press)

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See detailLes associations des enfants et jeunes travailleurs du Burkina Faso comme espace d’expression de la capacité d’action des enfants ?
Wouango, Joséphine ULg

in Enfances Familles Générations (in press)

Les Associations des Enfants et Jeunes Travailleurs du Burkina Faso (AEJT/BF) sont une représentation nationale du Mouvement Africain des Enfants et Jeunes Travailleurs (MAEJT), créé à la fin des années ... [more ▼]

Les Associations des Enfants et Jeunes Travailleurs du Burkina Faso (AEJT/BF) sont une représentation nationale du Mouvement Africain des Enfants et Jeunes Travailleurs (MAEJT), créé à la fin des années 1980. Le mouvement est fondé sur deux grands principes : les douze droits prioritaires des enfants et jeunes travailleurs et le principe du « protagonisme » (l’enfant travailleur comme acteur capable) . Ce chapitre présente et analyse le fonctionnement de ce mouvement au Burkina Faso, les changements qu’il a contribué à apporter à la question sociale du travail des enfants et les résultats de la mise en application des principes annoncés. S’appuyant sur une enquête ethnographique menée en son sein, le texte offre des données inédites sur les réalités d’un acteur collectif qui, en utilisant à son avantage la rhétorique de la « participation » des enfants (art.12, Convention des droits de l’enfant), a réussi à s’insérer dans l’arène nationale de la protection de l’enfance. Toutefois, la question de la place et du rôle des enfants ainsi que celle du “vieillissement” des membres sont quelques-uns des défis auxquels la section burkinabè du mouvement doit faire face. [less ▲]

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See detailA Validation of the French Version of the Attitudes to Aging Questionnaire (AAQ): Factor Structure, Reliability and Validity
Marquet, Manon ULg; Missotten, Pierre ULg; Schroyen, Sarah ULg et al

in Psychologica Belgica (in press)

Introduction: The Attitudes to Aging Questionnaire (AAQ) was developed to measure attitudes toward the aging process as a personal experience from the perspective of older people. The present study aimed ... [more ▼]

Introduction: The Attitudes to Aging Questionnaire (AAQ) was developed to measure attitudes toward the aging process as a personal experience from the perspective of older people. The present study aimed to validate the French version of the AAQ. Participants and methods: This study examined factor structure, acceptability, reliability and validity of the AAQ’s French version in 238 Belgian adults aged 60 years or older. In addition, participants provided information on demographics, self-perception of their mental and physical health (single items), quality of life (WHOQOL-OLD) and social desirability (DS-36). Results: Exploratory Factor Analysis produced a three-factor solution accounting for 36.9% of the variance. No floor or ceiling effects were found. The internal consistency, measured by Cronbach’s alpha coefficients for the AAQ subscales were 0.62 (Physical Change), 0.74 (Psychological Growth), and 0.75 (Psychosocial Loss). A priori expected associations were found between AAQ subscales, self-reported health and quality of life, indicating good convergent validity. The scale also showed a good ability to discriminate between people with lower and higher education levels, supporting adequate known-groups validity. Finally, we confirmed the need to control for social desirability biases when assessing self-reported attitudes toward one’s own aging. Conclusion: The data support the usefulness of the French version of the AAQ for the assessment of attitudes toward their own aging in older people. [less ▲]

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See detailLa collaboration entre architectes et plasticiens à Liège dans les années 1930.
Charlier, Sébastien ULg

in In Situ, revue des patrimoines (in press), 26

En 1928, des étudiants de l’Académie des Beaux-Arts de Liège fondent la revue d’architecture et d’urbanisme L’Équerre. S’inscrivant bien que tardivement dans la continuité des avant-gardes internationales ... [more ▼]

En 1928, des étudiants de l’Académie des Beaux-Arts de Liège fondent la revue d’architecture et d’urbanisme L’Équerre. S’inscrivant bien que tardivement dans la continuité des avant-gardes internationales, le mensuel revendique une vision transversale de l’architecture où la réflexion plastique occupe une place centrale. Dès le départ, elle s’associe à Anthologie, revue imprégnée des théories futuristes et qui diffuse les artistes de l’avant-garde locale. D’abord par le biais de l’édition et des expositions, plasticiens et architectes travaillent ensuite ensemble dans le cadre de projets ambitieux financés par les pouvoirs publics. Cette contribution revient aux racines de cette collaboration en définissant les liens théoriques ou personnels unissant les deux revues. En se concentrant sur les infrastructures publiques, elle comment les artistes et les architectes ont répondu ensemble aux exigences concrètes de la commande en les replaçant dans le contexte social, politique et économique d’une ville belge de seconde importance à la veille de la Seconde Guerre mondiale. [less ▲]

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See detailCOPPER ADSORPTION FROM WASTEWATER USING BONE CHARCOAL
Ghrab, Sarah; Benzina, Mourad; Lambert, Stéphanie ULg

in American Journal of Applied Sciences (in press)

Bone charcoal (BC) is being developed as a treatment for decontaminating polluted water. In this study, bone charcoal was obtained by pyrolysis of cow bone. Further, for the wastewater depollution with ... [more ▼]

Bone charcoal (BC) is being developed as a treatment for decontaminating polluted water. In this study, bone charcoal was obtained by pyrolysis of cow bone. Further, for the wastewater depollution with these new materials, their performance in the elimination of copper from aqueous solutions has to be determined. The minimum time to reach the removal equilibrium by adsorption was 10 min with a maximum of copper removal equal to 9,615 mg/g. the kinetics models were applied to fit the our experimental data. Actually, they have show excellent correlations with the pseudo-second-order model wich has presented a linear correlation coefficient equal to 0.941. It was verified that the HCl desorption system has the highest efficiency. [less ▲]

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See detailParametric Stein operators and variance bounds
Ley, Christophe; Swan, Yvik ULg

in Brazilian Journal of Probability and Statistics (in press)

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See detailAutomatic learning of fine operating rules for online power system security control
Sun, Hongbin; Zhao, Feng; Wang, Huifang et al

in IEEE Transactions on Neural networks and learning systems (in press)

Fine operating rules for security control and an automatic system for their online discovery were developed to adapt to the development of smart grids. The automatic system uses the real-time system state ... [more ▼]

Fine operating rules for security control and an automatic system for their online discovery were developed to adapt to the development of smart grids. The automatic system uses the real-time system state to determine critical flowgates, and then a continuation power flow-based security analysis is used to compute the initial transfer capability of critical flowgates. Next, the system applies the Monte Carlo simulations to expected short-term operating condition changes, feature selection, and a linear least squares fitting of the fine operating rules. The proposed system was validated both on an academic test system and on a provincial power system in China. The results indicated that the derived rules provide accuracy and good interpretability and are suitable for real-time power system security control. The use of high-performance computing systems enables these fine operating rules to be refreshed online every 15 min. [less ▲]

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See detailRobbe-Grillet va plus loin avec l'Express... Le romancier face à l'entretien journalistique
Lorent, Fanny ULg

in Interférences Littéraires = Literaire Interferenties (in press)

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See detailOptimized approach to retrieve information on atmospheric carbonyl sulfide (OCS) above the Jungfraujoch station and change in its abundance since 1995
Lejeune, Bernard ULg; Mahieu, Emmanuel ULg; Vollmer, M. K. et al

in Journal of Quantitative Spectroscopy & Radiative Transfer (in press)

In this paper, we present an optimized retrieval strategy for carbonyl sulfide (OCS), using Fourier transform infrared (FTIR) solar observations made at the high-altitude Jungfraujoch station in the Swiss ... [more ▼]

In this paper, we present an optimized retrieval strategy for carbonyl sulfide (OCS), using Fourier transform infrared (FTIR) solar observations made at the high-altitude Jungfraujoch station in the Swiss Alps. More than 200 lines of the nu3 fundamental band of OCS have been systematically evaluated and we selected 4 microwindows on the basis of objective criteria minimizing the effect of interferences, mainly by solar features, carbon dioxide and water vapor absorption lines, while maximizing the information content. Implementation of this new retrieval strategy provided an extended time series of the OCS abundance spanning the 1995-2015 time period, for the study of the long-term trend and seasonal variation of OCS in the free troposphere and stratosphere. Three distinct periods characterize the evolution of the tropospheric partial columns: a first decreasing period (1995-2002), an intermediate increasing period (2002-2008), and the more recent period (2008-2015) which shows no significant trend. Our FTIR tropospheric and stratospheric time series are compared with new in situ gas chromatography mass spectrometry (GCMS) measurements performed by Empa (Laboratory for Air Pollution/Environmental Technology) at the Jungfraujoch since 2008, and with space-borne solar occultation observations by the ACE-FTS instrument on-board the SCISAT satellite, respectively, and they show good agreement. The OCS signal recorded above Jungfraujoch appears to be closely related to anthropogenic sulfur emissions. [less ▲]

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See detail1 Conjoint influence of mind-wandering and sleepiness on task performance
Stawarczyk, David ULg; D'Argembeau, Arnaud ULg

in Journal of Experimental Psychology. Human Perception & Performance (in press)

Recent research suggests that sleepiness and mind-wandering—the experience of thoughts that are both stimulus-independent and task-unrelated—frequently co-occur and are both associated with poorer ... [more ▼]

Recent research suggests that sleepiness and mind-wandering—the experience of thoughts that are both stimulus-independent and task-unrelated—frequently co-occur and are both associated with poorer cognitive functioning. Whether these two phenomena have distinguishable effects on task performance remains unknown, however. To investigate this question, we employed the online experience sampling of mind-wandering episodes and subjective sleepiness during a laboratory task (the Sustained Attention to Response Task; SART), and also assessed mind-wandering frequency and sleep-related disturbances in daily life using self-report questionnaires. The results revealed that the tendency to experience mind-wandering episodes during the SART and daily life was associated with higher levels of daytime sleepiness and sleep-related disturbances. Importantly, however, mind-wandering and sleepiness were independent predictors of SART performance at both the within- and between-individuals levels. These findings demonstrate that, although mind-wandering and sleepiness frequently co-occur, these two phenomena have distinguishable and additive effects on task performance. [less ▲]

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See detailNegatively Charged Lipids as a Potential Target for New Amphiphilic Aminoglycoside Antibiotics: A BIOPHYSICAL STUDY*
Sautrey, Guillaume; El Khoury, Micheline; Dos Giros, Andrea et al

in Journal of Biological Chemistry (in press)

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See detailFruit biomass availability along a forest cover gradiant
Pesso, Michaele; Rocca, Larissa; Talora, Daniela et al

in Biotropica (in press)

Habitat loss is the main driver of the current high rate of species extinction, particularly in tropical forests. Understanding the factors associated with biodiversity loss, such as the extinction of ... [more ▼]

Habitat loss is the main driver of the current high rate of species extinction, particularly in tropical forests. Understanding the factors associated with biodiversity loss, such as the extinction of species interactions and ecological functions, is an urgent priority. Here, our aim was to evaluate how landscape-scale forest cover influences fruit biomass comparing different tree functional groups. We sampled 20 forest fragments located within landscapes with forest cover ranging from 2 to 93 percent in the Atlantic Forest of southern Bahia, Brazil. In each fragment, we established five plots of 25 × 4 m and carried out phenological observations on fleshy fruit throughout one year on all trees ≥ 5 cm dbh. We estimated fruit availability by direct counting all fruits and derived fruit biomass from this count. We used spatial mixed linear models to evaluate the effects of forest cover on species richness, abundance, and fruit biomass. Our results indicated that forest cover was the main explanatory variable and negatively influenced the total richness and abundance of zoochoric and shade-tolerant but not shade-intolerant species. A linear model best explained variations in richness and abundance of total and shade-tolerant species. We also found that forest cover was positively correlated with the fruit biomass produced by all species and by the shade-tolerant assemblages, with linear models best explaining both relationships. The loss of shade-tolerant species and the lower fruit production in fragments with lower landscape-scale forest cover may have implications for the maintenance of frugivore, seed dispersal service, and plant recruitment. [less ▲]

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See detailEnergy conservation properties of Ritter solution for idealized dam break flow
Dewals, Benjamin ULg; Bruwier, Martin ULg; Erpicum, Sébastien ULg et al

in Journal of Hydraulic Research (in press)

We examine different aspects of energy conservation in the case of the analytical solution of Ritter for idealized dam break flow in a horizontal frictionless and dry channel. We detail the application of ... [more ▼]

We examine different aspects of energy conservation in the case of the analytical solution of Ritter for idealized dam break flow in a horizontal frictionless and dry channel. We detail the application of the unsteady Bernoulli equation in this case and highlight that the inertial effects cancel out when averaged over the whole flow region. We also show that the potential and kinetic contributions to the total mechanical energy in the flow region have a distinct and constant relative importance: potential energy accounts for 60 %, and kinetic energy for 40 % of the total mechanical energy. These properties of Ritter solution are rarely emphasized while they may be of practical relevance, particularly for the verification of numerical schemes with respect to their ability to ensure energy conservation. [less ▲]

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See detailLes différentes modalités d’évaluation en accompagnement collectif.
Bernard, Nicolas; Faulx, Daniel ULg

in Education Permanente (in press)

L’accompagnement collectif constitue un mode de développement des individus et des équipes qui bénéficie aujourd’hui d’une abondante littérature méthodologique et théorique. Bien que cette question soit ... [more ▼]

L’accompagnement collectif constitue un mode de développement des individus et des équipes qui bénéficie aujourd’hui d’une abondante littérature méthodologique et théorique. Bien que cette question soit moins documentée actuellement, l’accompagnement collectif met en jeu également des démarches d’évaluation qui viennent en appui du processus. Basé sur quatre études de cas, cet article propose une modélisation des différentes possibilités d’évaluations, triées en fonction de quatre critères (niveaux, temporalités, contenus, formes). Chaque modalité est illustrée à l’aide d’un cas fil rouge. Cela débouche sur une multiplicité de possibilités d’application de l’évaluation au service de l’accompagnement. Nous terminons par discuter comment cette pratique peut être théorisée en termes de posture épistémologique. [less ▲]

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See detailDPSC colonization of functionalized 3D textiles
Ortiz, Marine; Rosales-Ibáñez, R; Pozos-Guillén, A. et al

in Journal of Biomedical Materials Research, Part B : Applied Biomaterials (in press)

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See detailSpinoza contre Spinoza: l'antihumanisme de Lordon, un althussérisme?
Mancuso, Eva ULg

in Dissensus (in press), 6

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See detailTeletê peut-elle être déesse ? Note épigraphique (SEG 50, 168)
Pirenne-Delforge, Vinciane ULg

in Mètis : Revue d'Anthropologie du Monde Grec Ancien : Philologie, Histoire, Archéologie (in press)

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See detailGlioblastoma-derived extracellular vesicles induce tumor-supportive phenotypes in monocytic cells
de Vrij, Jeroen; Maas, Sybren; Kwappenberg, Kitty et al

in International Journal of Cancer = Journal International du Cancer (in press)

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See detailLe Mur et le masque. À propos de Banksy.
Saint-Amand, Denis ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (in press)

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See detailFavoriser la co-régulation et la co-construction d’une démarche efficace de résolution de problèmes mathématiques en fin d’enseignement primaire
Jaegers, Doriane ULg; Lafontaine, Dominique ULg; Fagnant, Annick ULg

in Schweizerische Zeitschrift fur Bildungswissenschaften = Rivista Svizzera di Scienze dell'Educazione = Revue Suisse des Sciences de l'Education (in press), 38(3),

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See detailCompte rendu de D. van Mal-Maeder, A. Burnier, L. Núñez (éds.): Jeux de voix. Énonciation, intertextualité et intentionnalité dans la littérature antique
Macedo, Gabriel ULg

in Antiquité Classique : Revue Interuniversitaire d'Etudes Classiques (in press)

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See detailEffects of 10Hz and 20Hz transcranial alternating current stimulation on automatic motor control
Cappon, Davide; D'Ostilio, Kevin ULg; Garraux, Gaëtan ULg et al

in Brain Stimulation (in press)

Background: Automatic motor inhibition is an important and adaptive process through which an activated motor plan is suppressed if the movement is not intended to be executed. Neuronal networks are ... [more ▼]

Background: Automatic motor inhibition is an important and adaptive process through which an activated motor plan is suppressed if the movement is not intended to be executed. Neuronal networks are characterized by oscillatory activity. In the brain, a large variety of rhythms have been described that differ in their frequency, origin and reactivity to changes in task demands. Recent studies have demonstrated that active cortical networks are susceptible to weak sinusoidal perturbations of exogenous electric fields. Objective/Hypothesis: The aim of this study was to investigate the frequency-specific effect of transcranial alternate current stimulation (tACS) over the automatic control of movement in healthy volunteers. We hypothesized that applying two different tACS frequencies during a visuo-motor task would result in different behavioural effects and in diverse modulation of cortical excitability. Methods: In this study we used tACS to interact non-invasively with the ongoing task-related oscillatory activity. Stimulation was delivered at alpha (10 Hz) and beta (20 Hz) frequency over the supplementary motor area and the primary motor cortex (SMA-M1) connections, which are part of the BG-cortical motor loop, during the execution of the subliminal masked prime task. We measured the effects on task performance and on motor cortex corticospinal excitability by means of motor evoked potentials (MEPs) evoked by transcranial magnetic stimulation (TMS). Results: Results indicate a specific effect of 10 and 20-Hz tACS on functional inhibition in the SMA-M1 circuit. Behaviorally there is an interference in task-related automatic inhibition: 10 Hz tACS reduced the automatic inhibition. In contrast 20 Hz tACS increased the automatic inhibition. At a neurophysiological level there is a modulation in excitability of M1: 20 Hz tACS reduced MEP amplitudes, whereas there was no change after 10 Hz tACS. Conclusion(s): The current study provides novel evidence that automatic mechanisms of motor behaviour can be modulated by imposing synchronized electrical oscillatory activity upon motor cortical regions. Our study has important implications for cognitive neuroscience studies suggesting that the use tACS might offer the possibility to demonstrate a causal link between endogenous brain oscillations, specific exogenous alternate current frequencies and specific cognitive processes. [less ▲]

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See detailUn type picard par-delà les frontières : le <nom jeté>
Baiwir, Esther ULg

in Dialectes de Wallonie (in press), 36

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See detailCo-simulation of Electromagnetic Transients and Phasor Models: a Relaxation Approach
Plumier, Frédéric ULg; Aristidou, Petros; Geuzaine, Christophe ULg et al

in IEEE Transactions on Power Delivery (in press)

Co-simulation opens new opportunities to combine mature ElectroMagnetic Transients (EMT) and Phasor-Mode (PM) solvers, and take advantage of their respective high accuracy and execution speed. In this ... [more ▼]

Co-simulation opens new opportunities to combine mature ElectroMagnetic Transients (EMT) and Phasor-Mode (PM) solvers, and take advantage of their respective high accuracy and execution speed. In this paper, a relaxation approach is presented, iterating between an EMT and a PM solver. This entails interpolating over time the phasors of the PM simulation, extracting phasors from the time evolutions of the EMT simulation, and representing each sub-system by a proper multiport equivalent when simulating the other sub-system. Various equivalents are reviewed and compared in terms of convergence of the PM-EMT iterations. The paper also considers the update with frequency of the Thévenin impedances involved in the EMT simulation, the possibility to compute the EMT solution only once per time step, and the acceleration of convergence through a prediction over time of the boundary variables. Results are presented on a 74-bus, 23-machine test system, split into one EMT and one PM sub-system with several interface buses. [less ▲]

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See detailA cross-sectional analysis of developmental trajectories of vocabulary comprehension among children and adolescents with Down syndrome or intellectual disability of undifferentiated aetiology
Facon, Bruno; Courbois, Yannick; Magis, David ULg

in Journal of Intellectual & Developmental Disability (in press)

Background: This work seeks to expand our knowledge of developmental trajectories of subcomponents of the language systems of individuals with intellectual disability (ID). It aims to explore how general ... [more ▼]

Background: This work seeks to expand our knowledge of developmental trajectories of subcomponents of the language systems of individuals with intellectual disability (ID). It aims to explore how general and relational vocabularies evolve as a function of cognitive level. Method: Developmental trajectories of general and relational vocabulary comprehension were compared among typically developing children (TYP) and children and adolescents with ID of undifferentiated aetiology (UND) or Down syndrome (DS). Results: Comparisons between TYP and UND participants showed no interaction between cognitive level and diagnostic status for general vocabulary, and only a very weak interaction for relational vocabulary. Comparisons between TYP and DS participants failed to reveal groupspecific trajectories. Performance in general vocabulary was higher than in relational vocabulary for both UND and DS participants. Conclusion: The developmental trajectories of vocabulary appear to be globally comparable for participants with or without ID. [less ▲]

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See detailCompte-rendu de l'ouvrage de O. Dubreucq : L'instruction des laïcs de Jonas d'Orléans
Close, Florence ULg

in Revue des Etudes Latines (in press)

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See detailLoop
Levaux, Christophe ULg

in Rock Music Studies (in press)

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See detailOne-pot synthesis of double poly(ionic liquid) block copolymers by cobalt-mediated radical polymerization-induced self assembly (CMR-PISA) in water
Cordella, Daniela ULg; Debuigne, Antoine ULg; Jérôme, Christine ULg et al

in Macromolecular Rapid Communications (in press)

Amphiphilic double poly(ionic liquid) (PIL) block copolymers are directly prepared by cobalt- mediated radical polymerization induced self-assembly (CMR-PISA) in water of N-vinyl imida- zolium monomers ... [more ▼]

Amphiphilic double poly(ionic liquid) (PIL) block copolymers are directly prepared by cobalt- mediated radical polymerization induced self-assembly (CMR-PISA) in water of N-vinyl imida- zolium monomers carrying distinct alkyl chains. The cobalt-mediated radical polymerization of N-vinyl-3-ethyl imidazolium bromide (VEtImBr) is first carried out until high conversion in water at 30 °C, using an alkyl bis(acetylacetonate)cobalt(III) adduct as initiator and con- trolling agent. The as-obtained hydrophilic poly(N-vinyl-3- ethyl imidazolium bromide) (PVEtImBr) is then used as a macroinitiator for the CMR-PISA of N-vinyl-3-octyl imidazo- lium bromide (VOcImBr). Self-assembly of the amphiphilic PVEtImBr-b-PVOcImBr block copolymer, i.e., of PIL-b-PIL-type, rapidly takes place in water, forming polymer nanoparticles consisting of a hydrophilic PVEtImBr corona and a hydro- phobic PVOcImBr core. Preliminary investigation into the effect of the size of the hydrophobic block on the dimension of the nanoparticles is also described. [less ▲]

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See detailBiochemical characterization of the oil of durum wheat germ (Tunisian variety)
Kammoun, Maroua; Rassâa, Neila; Mejri-Gaïda, Myriam et al

in Journal of New Sciences (in press)

The wheat germ oil may constitute an alternative to the misuse of this cereal grain resource. The Tunisian exploitation is limited, at present, in the human and animal feed in the grain form, straw or ... [more ▼]

The wheat germ oil may constitute an alternative to the misuse of this cereal grain resource. The Tunisian exploitation is limited, at present, in the human and animal feed in the grain form, straw or some transformed products. For the purpose of characterization, the wheat germ oil has been extracted by Soxhlet apparatus from a Tunisian variety of durum wheat (Maali) based on the hexane as a solvent. An analysis by gas chromatography (GC) was then performed to identify and quantify the fatty acids of the oil. Then, the oil has submitted to a second chromatography analysis in liquid phase (HPLC) to quantify the tocopherols. The most important fatty acids constituting have been the two polyunsaturated acids linoleic acid C18:2 (OMEGA 6) and the gamma acid- linoleic C18:3 : 58.24 % and 4.19 % respectively; and the acid monounsaturated oleic acid C18:1 ( 24.49 %) but also some saturated acid: palmitic acid C16:0 with ( 19.50 % ), and the stearic acid C18:0 (1.29%). For this variety of Tunisian durum wheat, the wheat germ oil contains, in addition, 80.27 mg / 100g of α- tocopherols (vitamin E). The wheat germ oil extracted from the Tunisian variety 'Maali' has proved rich in vitamin E and omega-6 ; a better valorisation on the nutritional or pharmaceutical plan is to this title recommended. [less ▲]

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See detailLate Pleistocene molecular dating of past population fragmentation and demographic changes in African rain forest tree species supports the forest refuge hypothesis
Duminil, Jérôme; Mona, Stefano; Mardulyn, Patrick et al

in Journal of Biogeography (in press)

Aim : Phylogeographical signatures of past population fragmentation and demographic change have been reported in several African rain forest trees. These signatures have usually been interpreted in the ... [more ▼]

Aim : Phylogeographical signatures of past population fragmentation and demographic change have been reported in several African rain forest trees. These signatures have usually been interpreted in the light of the Pleistocene forest refuge hypothesis, although dating these events has remained impracticable because of inadequate genetic markers. We assess the timing of interspecific and intraspecific genetic differentiation and demographic changes within two rain forest Erythrophleum tree species (Fabaceae: Caesalpinioideae). Location : Tropical forests of Upper Guinea (West Africa) and Lower Guinea (Atlantic Central Africa). Methods : Six single-copy nuclear genes were used to characterize the phylogeographical patterns of the parapatric sister species Erythrophleum suaveolens (characteristic of semi-deciduous or gallery forests) and Erythrophleum ivorense (characteristic of evergreen forests). The number of gene pools within each species was determined and the timings of their divergence and past demographic changes were estimated using Bayesian-based coalescent approaches. Results : Three geographically separated gene pools were identified within E. suaveolens, and a single gene pool was inferred in E. ivorense. All gene pools show signatures of demographic bottlenecks concomitant with the last glacial period (c. 120–12 ka). Species-tree inferences show that the two species diverged c. 600 ka, whereas the divergence between E. suaveolens gene pools was dated to the late Pleistocene (first divergence c. 120 ka, second c. 60 ka). Main conclusions : (1) Molecular dating of demographic changes of two African tropical forest tree species is consistent with the Pleistocene forest refuge hypothesis. (2) Tree species from Guinean evergreen tropical forests might have been less affected by past climate change than semi-deciduous species. (3) Our phylogeographical data support a recent date (Holocene) of the last opening of the Dahomey Gap. [less ▲]

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See detailInhibitory deterioration may contribute to hallucinations in Alzheimer’s disease
El Haj, Mohamad; Laroi, Frank ULg; Gély-Nargeot, Marie-Christine et al

in Cognitive Neuropsychiatry (in press)

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See detailThe color ratio-intensity relation in the Jovian aurora: Hubble observations of auroral components
Gérard, Jean-Claude ULg; Bonfond, Bertrand ULg; Grodent, Denis ULg et al

in Planetary and Space Science (in press), (1),

Spectral observations made with the long slit of the Space Telescope Imaging Spectrograph (STIS) on board Hubble have been used to construct spectral maps of the FUV Jovian aurora. They reveal that the ... [more ▼]

Spectral observations made with the long slit of the Space Telescope Imaging Spectrograph (STIS) on board Hubble have been used to construct spectral maps of the FUV Jovian aurora. They reveal that the amount of absorption by overlying methane shows significant spatial variations. In this report, we examine the relationship between the auroral brightness of the unabsorbed H2 emission that is proportional to the precipitated electron energy flux, and the ultraviolet color ratio, a proxy of the mean electron energy. We find that it varies significantly between the different components of the aurora and in the polar region. Although no global dependence can be found, we show that the two quantities are better organized in some auroral components such as regions of the main aurororal emission. By contrast, the dependence of the electron characteristic energy in high-latitude and diffuse aurora regions on the auroral energy input is generally more scattered. We conclude that the various auroral components are associated with different electron acceleration processes, some of which are not governed by a simple relation linking the value of a field-aligned acceleration potential with the parallel currents flowing from the ionosphere. [less ▲]

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See detailPlant evolution and terrestrialization during Palaeozoic times - the phylogenetic context
Gerrienne, Philippe ULg; Servais, Thomas; Vecoli, Marco

in Review of Palaeobotany and Palynology (in press)

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See detailHuman herpesvirus 8-encoded chemokine vCCL2/vMIP-II is an agonist of the atypical chemokine receptor ACKR3/CXCR7
Szpakowska, Martyna; Dupuis, Nadine ULg; Baragli, Alessandra et al

in Biochemical Pharmacology (in press)

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See detailMinor compounds and oxidative stability of mono-varietal virgin olive oils produced in eastern of Morocco
Mansouri, Farid; Benmoumen, Abdessamad; Richard, Gaetan ULg et al

in Food Chemistry (in press)

The aim of this study is to characterize monovarietal virgin olive oils (VOOs) of new high-density plantings system of three cultivars (Arbequina, Arbosana and Koroneiki) which have been recently ... [more ▼]

The aim of this study is to characterize monovarietal virgin olive oils (VOOs) of new high-density plantings system of three cultivars (Arbequina, Arbosana and Koroneiki) which have been recently introduced in the eastern mediterranean region of Morocco. In this study, we have also conducted comparison between those monovarietal VOOs and olive oil of the local olive cultivar Picholine marocaine. Monovarietal VOOs characterization has been carried out by analysing several parameters, including quality index and olive oil stability to oxidation. Significant differences between the analysed olive oils were highlighted. They depend on cultivars and technological conditions of processing. We have noticed that Koroneiki olive oil have higher content of phenols (459.48 mg kg-1) and have the best value of oxidative stability (93.16 h). On the other hand Arbrosana’s VOO has low content of total phenols (260.85 mg kg-1) but it was distinguished by its higher content of alpha-tocopherol (460.07 mg kg-1). In addition, ten phenolic compounds present in virgin olive oils, were identified and quantitatively assessed by HPLC. Hydroxytyrosol, tyrosol, luteoline, pinoresinol and apigenin were the main phenolic compounds in those analyzed monovarietal VOOS. [less ▲]

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See detailArrêts sur images – usages et pratiques du photogramme
Thonon, Jonathan ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (in press)

Le photogramme est, au cinéma, la plus petite unité de prise de vue. Image fixe, unité élémentaire du film, le photogramme forme la cellule figée d’un mouvement qui se reconstitue sous l’effet d’un ... [more ▼]

Le photogramme est, au cinéma, la plus petite unité de prise de vue. Image fixe, unité élémentaire du film, le photogramme forme la cellule figée d’un mouvement qui se reconstitue sous l’effet d’un défilement réglé (24 photogrammes/seconde) par le dispositif technique du cinéma. Image paradoxale en ce qu’elle reste invisible au spectateur malgré sa force iconique, le photogramme trouve cependant, dans le flux qui le conduit insensiblement à la disparition, certaines zones de visibilité qui en révèlent le caractère à la fois fragile et intensif. Nous allons donc envisager certaines pratiques ou certains usages du photogramme cinématographique, tout en essayant de dégager, au départ de ces pratiques, les éléments d’une théorie du photogramme, que Roland Barthes et Sylvie Pierre appelaient déjà de leurs vœux. Des protos-photogrammes et de leur usage scientifique chez Muybridge et Marey, aux usages artistiques contemporains, en passant par des pratiques publicitaires, promotionnelles ou analytiques, nous allons voir que le photogramme reste un objet singulier. [less ▲]

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See detailHigh Resolution postontrast time of flight MR angiography of intracranial perforators at 7.0 Tesla
Harteveld, A; de Cocker, L; Dieleman, N et al

in American Journal of Neuroradiology (in press)

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See detailIs the sword moss (Bryoxiphium) a preglacial Tertiary relict?
Patino, J.; Goffinet, B.; Sim-Sim, M.A. et al

in Molecular Phylogenetics & Evolution (in press)

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See detailLa consecratio du terrain de la domus palatine de Cicéron
Berthelet, Yann ULg

in Mélanges de l'École Française de Rome. Antiquité (in press), 128(2),

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See detailULTRASONOGRAPHIC FINDINGS IN 13 HORSES WITH LYMPHOMA
Janvier, Valentin; Evrard, Laurence ULg; Cerri, Simona ULg et al

in Veterinary Radiology & Ultrasound (in press)

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See detailSemantic Integration by Pattern Priming: Experiment and Cortical Network Model
Lavigne, Frédéric; Longrée, Dominique ULg; Mellet, Sylvie

in Cognitive Neurodynamics (in press)

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See detailCutaneous involvement in multiple myeloma: a multi-institutional retrospective study of 53 patients
Jurczyszyn, .; Olszewska-Szopa, M.; Hungria, V. et al

in Leukemia & Lymphoma (in press)

Skin infiltration in multiple myeloma (skin MM) is a rare clinical problem. Only a few cases of skin involvement have been reported, primarily in single case reports. We analyzed and present the clinical ... [more ▼]

Skin infiltration in multiple myeloma (skin MM) is a rare clinical problem. Only a few cases of skin involvement have been reported, primarily in single case reports. We analyzed and present the clinical outcomes, immunohistochemistry and cytogenetic features, and relevant laboratory data on 53 biopsy-proven skin MM cases. The median time from MM diagnosis to skin involvement was 2 years. There appears to be an overrepresentation of immunoglobulin class A (IgA) and light chain disease in skin MM. We found no correlation between CD56 negative MM and skin infiltration. We found that skin MM patients presented in all MM stages (i.e. ISS stages I to III), and there was no preferential cytogenetic abnormality. Patients with skin MM carry a very poor prognosis with a median overall survival (OS) of 8.5 months as time from skin involvement. Moreover, patients with IgA disease and plasmablastic morphology appear to have a worse OS. [less ▲]

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See detailMontage et résistance du réel chez S. Kracauer: Photographie, cinéma, texte.
Hagelstein, Maud ULg; Hamers, Jérémy ULg

in Bulletin d'Analyse Phénoménologique (in press)

Partant de quelques textes dans lesquels S. Kracauer traite du rapport entre montage et réel, cet article tente de préciser et de problématiser l’ambivalence de Kracauer à l’égard de l’outil « montage » ... [more ▼]

Partant de quelques textes dans lesquels S. Kracauer traite du rapport entre montage et réel, cet article tente de préciser et de problématiser l’ambivalence de Kracauer à l’égard de l’outil « montage », notamment dans le champ cinématographique, en ouvrant la réflexion par cette double question : comment définir un « mauvais usage » du montage et, à l’opposé, comment peuvent se mettre en place les conditions d’un « bon usage » du montage selon Kracauer ? Pour y répondre, les auteurs identifient d'abord, dans l’œuvre de Kracauer, les éléments explicites et implicites (montage textuel) qui permettent de saisir au plus près ce que serait, selon le philosophe et sociologue, le principe de réalité. Ensuite, une œuvre photographique, contemporaine des quelques textes évoqués, Menschen des 20. Jahrhunderts d’August Sander, permet de mieux circonscrire les possibles concrétisations de cette pensée en la mettant à l’épreuve d’une réalisation en images et en montage. [less ▲]

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See detailThe right dorsal premotor mosaic: organization, functions, and connectivity
Genon, Sarah ULg; Li, Hai; Fan, Lingzhong et al

in Cerebral Cortex (in press)

The right dorsal premotor cortex (PMd) of humans has been reported to be involved in a broad range of motor and cognitive functions. We explored the basis of this behavioral heterogeneity by performing a ... [more ▼]

The right dorsal premotor cortex (PMd) of humans has been reported to be involved in a broad range of motor and cognitive functions. We explored the basis of this behavioral heterogeneity by performing a connectivity-based parcellation using meta-analytic approach applied to PMd coactivations. We compared our CBP results to parcellations obtained through resting-state functional connectivity and probabilistic diffusion tractography,. Functional connectivity profiles and behavioral decoding of the resulting PMd subregions allowed characterizing their respective behavior profile. These procedures divided the right PMd into five distinct subregions that formed a cognitive-motor gradient along a rostro-caudal axis. In particular, we found (i) a rostral subregion functionally connected with prefrontal cortex, which likely supports high-level cognitive processes, such as working memory (ii) a central subregion showing a mixed behavioral profile and functional connectivity to parietal regions of the dorsal attention network, and (iii) a caudal subregion closely integrated with the motor system. Additionally, we found (iv) a dorsal subregion, preferentially related to hand movements and connected to both cognitive and motor regions, and (v) a ventral subregion, whose functional profile fits the concept of an eye-movement related field. In conclusion, right PMd may be considered as a functional mosaic formed by five subregions. [less ▲]

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