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See detailSupervised detection of exoplanets in high-contrast imaging sequences
Gómez González, Carlos ULiege; Absil, Olivier ULiege; Van Droogenbroeck, Marc ULiege

in Astronomy and Astrophysics (in press)

Context. Post-processing algorithms play a key role in pushing the detection limits of high-contrast imaging (HCI) instruments. State-of-the-art image processing approaches for HCI enable the production ... [more ▼]

Context. Post-processing algorithms play a key role in pushing the detection limits of high-contrast imaging (HCI) instruments. State-of-the-art image processing approaches for HCI enable the production of science-ready images relying on unsupervised learning techniques, such as low-rank approximations, for generating a model point spread function (PSF) and subtracting the residual starlight and speckle noise. Aims. In order to maximize the detection rate of HCI instruments and survey campaigns, advanced algorithms with higher sensitivities to faint companions are needed, especially for the speckle-dominated innermost region of the images. Methods. We propose a reformulation of the exoplanet detection task (for ADI sequences) that builds on well-established machine learning techniques to take HCI post-processing from an unsupervised to a supervised learning context. In this new framework, we present algorithmic solutions using two different discriminative models: SODIRF (random forests) and SODINN (neural networks). We test these algorithms on real ADI datasets from VLT/NACO and VLT/SPHERE HCI instruments. We then assess their performances by injecting fake companions and using receiver operating characteristic analysis. This is done in comparison with state-of-the-art ADI algorithms, such as ADI principal component analysis (ADI-PCA). Results. This study shows the improved sensitivity versus specificity trade-off of the proposed supervised detection approach. At the diffraction limit, SODINN improves the true positive rate by a factor ranging from ∼2 to ∼10 (depending on the dataset and angular separation) with respect to ADI-PCA when working at the same false-positive level. Conclusions. The proposed supervised detection framework outperforms state-of-the-art techniques in the task of discriminating planet signal from speckles. In addition, it offers the possibility of re-processing existing HCI databases to maximize their scientific return and potentially improve the demographics of directly imaged exoplanets. [less ▲]

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See detailEquivalence des hypothèses et relativité du mouvement dans la Dynamica
Bouquiaux, Laurence ULiege

in Studia Leibnitiana (in press)

Leibniz’s conception of the relativity of motion has been discussed at length for a very long time. This paper doesn’t aim to give a full solution to this question, but to contribute to the debate by ... [more ▼]

Leibniz’s conception of the relativity of motion has been discussed at length for a very long time. This paper doesn’t aim to give a full solution to this question, but to contribute to the debate by clarifying how the principle of relativity is introduced, justified and used in the Dynamica. Four different principles are identified : one purely geometrical, and three (meta)physical principles, which express God’s wisdom : a principle of equivalence of hypotheses linked to the action/reaction principle, a galilean principle of relativity and a general principle which apply not only to rectilinear motions but also to circular ones. I argue that to appreciate the coherence of Leibniz’ approach, we should distinguish these principles more sharply than he himself did and pay more attention to their status : are they consequences of the definition of motion, consequences of the physical laws or necessary conditions for any physical theory ? [less ▲]

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See detailVoice use among music theory teachers: A voice dosimetry and self-assessment study
Schiller, Isabel ULiege; Morsomme, Dominique ULiege; Remacle, Angélique ULiege

in Journal of Voice (in press)

Objectives: (1) To investigate music theory teachers’ professional and extra-professional vocal loading and background noise exposure, (2) to determine the correlation between vocal loading and background ... [more ▼]

Objectives: (1) To investigate music theory teachers’ professional and extra-professional vocal loading and background noise exposure, (2) to determine the correlation between vocal loading and background noise, and (3) to determine the correlation between vocal loading and self-evaluation data. Methods: Using voice dosimetry, 13 music theory teachers were monitored for one workweek. Parameters analysed were voice SPL, F0, phonation time, vocal loading index (VLI) and noise SPL. Spearman’s correlation was used to correlate vocal loading parameters (voice SPL, F0 and phonation time) and noise SPL. Each day, subjects self-assessed their voice using visual analogue scales. VLI and self-evaluation data were correlated using Spearman’s correlation. Results: Vocal loading parameters and noise SPL were significantly higher in the professional than in the extra-professional environment. Voice SPL, phonation time and females’ F0 correlated positively with noise SPL. VLI correlated with self-assessed voice quality, vocal fatigue and amount of singing and speaking voice produced. Conclusions: Teaching music theory is a profession with high vocal demands. More background noise is associated with increased vocal loading and may indirectly increase the risk for voice disorders. Correlations between VLI and self-assessments suggest that these teachers are well-aware of their vocal demands and feel their effect on voice quality and vocal fatigue. Visual analogue scales seem to represent a useful tool for subjective vocal loading assessment and associated symptoms in these professional voice users. [less ▲]

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See detailRegional brain volumetry and brain function in severely brain-injured patients
Annen, Jitka ULiege; Frasso, Gianluca; Crone, Julia et al

in Annals of Neurology (in press)

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See detailB-MODE AND POWER DOPPLER ULTRASONOGRAPHY OF THE EQUINE SUSPENSORY LIGAMENT BRANCHES: A DESCRIPTIVE STUDY ON 13 HORSES
Rabba, Silvia ULiege; Grulke, Sigrid; Verwilghen, Denis et al

in Veterinary Radiology & Ultrasound (in press)

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See detailL'extension du recours en tierce opposition aux tiers lésés par une sentence arbitrale
Caprasse, Olivier ULiege; Malherbe, Maxime ULiege

in b-Arbitra (in press)

I. Judicial and arbitral decisions have identical effects with regard to third parties. Article 1122 of the Judicial Code, however, only provides for the possibility for third parties aggrieved by a court ... [more ▼]

I. Judicial and arbitral decisions have identical effects with regard to third parties. Article 1122 of the Judicial Code, however, only provides for the possibility for third parties aggrieved by a court decision to lodge third party opposition. This difference of treatment between third parties aggrieved by a judicial decision and those aggrieved by an arbitral award is incompatible with articles 10 and 11 of the Constitution. This lacuna is identified by the Court in terms sufficiently specific and complete to allow the application of the provision at stake ; it is up to the judge a quo to put an end to the violation of articles 10 and 11. II. Article 1717 of the Judicial Code does not violate articles 10 and 11 of the Constitution as it is interpreted by the Cour de cassation as limiting the right of third parties to request the annulment of an award to cases of fraud. [less ▲]

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See detailIntégrer le droit international au champ des relations internationales : les juristes belges à Versailles en 1919
Genin, Vincent ULiege

in Relations internationales (in press), (2),

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

in Zeitschrift für Papyrologie und Epigraphik (in press)

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See detailPsychopathologie et monde social : les limites de l'empathie et de la sympathie
Englebert, Jérôme ULiege

in Philosophie (in press)

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

in Revista Natureza Humana (in press)

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See detailFace à l'incertitude : la cristallisation des réseaux par les comédiens entrepreneurs
Pirard, Julie; Dufays, Frédéric; Xhauflair, Virginie ULiege

in Revue de l'Entrepreneuriat (in press)

A l’instar de l’action entrepreneuriale, la carrière de comédien est empreinte d’incertitude. Cet article examine comment les comédiens cristallisent leurs réseaux socio-professionnels pour réduire cette ... [more ▼]

A l’instar de l’action entrepreneuriale, la carrière de comédien est empreinte d’incertitude. Cet article examine comment les comédiens cristallisent leurs réseaux socio-professionnels pour réduire cette incertitude. L’analyse du parcours de quatre comédiens entrepreneurs révèle trois modulations de cristallisation – cristallisations et décristallisations successives, cristallisation d’un collectif ou d’une équipe, et cristallisation du réseau de partenaires – qui sont utilisées tantôt successivement, tantôt en combinaison. Ces cristallisations prennent forme autour d’une diversité d’éléments cristallisateurs, dépassant une vision exclusivement centrée sur un projet ou une personne. Ces résultats enrichissent le modèle réticulaire de création organisationnelle de Larson et Starr (1993), lui donnant un caractère plus systémique, et contribuent à la compréhension des processus d’insertion socio-professionnelle des artistes grâce au prisme de l’entrepreneuriat. [less ▲]

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See detailThe long-period massive binary HD 54662 revisited
Mossoux, Enmanuelle ULiege; Mahy, Laurent ULiege; Rauw, Grégor ULiege

in Astronomy and Astrophysics (in press)

Context. HD 54662 is an O-type binary star belonging to the CMa OB1 association. Because of its long-period orbit, this system is an interesting target to test the adiabatic wind shock model. Aims. The ... [more ▼]

Context. HD 54662 is an O-type binary star belonging to the CMa OB1 association. Because of its long-period orbit, this system is an interesting target to test the adiabatic wind shock model. Aims. The goal of this study is to improve our knowledge of the orbital and stellar parameters of HD 54662 and to analyze its X-ray emission to test the theoretical scaling of X-ray emission with orbital separation for adiabatic wind shocks. Methods. We applied a spectral disentangling code to a set of optical spectra to determine the radial velocities and the individual spectra of the primary and secondary stars. The orbital solution of the system was established and the reconstructed individual spectra were analyzed by means of the CMFGEN model atmosphere code. We fitted two X-ray spectra using a Markov Chain Monte Carlo algorithm and compared these spectra to the emission expected from adiabatic shocks. Results. We determine an orbital period of 2103.4 days, a surprisingly low orbital eccentricity of 0.11, and a mass ratio m2/m1 of 0.84. Combined with the orbital inclination inferred in a previous astrometric study, we obtain surprisingly low masses of 9.7 and 8.2 Msun. From the disentangled primary and secondary spectra, we infer O6.5 spectral types for both stars, of which the primary is about two times brighter than the secondary. The softness of the X-ray spectra for the two observations, the very small variation of best-fitting spectral parameters, and the comparison of the X-ray-to-bolometric luminosity ratio with the canonical value for O-type stars allow us to conclude that X-ray emission from the wind interaction region is quite low and that the observed emission is rather dominated by the intrinsic emission from the stars. We cannot confirm the runaway status previously attributed to HD 54662 by computing the peculiar radial and tangential velocities. We find no X-ray emission associated with the bow shock detected in the infrared. Conclusions. The lack of hard X-ray emission from the wind-shock region suggests that the mass-loss rates are lower than expected and/or that the pre-shock wind velocities are much lower than the terminal wind velocities. The bow shock associated with HD 54662 possibly corresponds to a wind-blown arc created by the interaction of the stellar winds with the ionized gas of the CMa OB1 association rather than by a large differential velocity between the binary and the surrounding interstellar medium. [less ▲]

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See detailStochastic multiscale model of MEMS stiction accounting for high order statistical moments of non-Gaussian contacting surfaces
Hoang Truong, Vinh ULiege; Wu, Ling ULiege; Golinval, Jean-Claude ULiege et al

in IEEE/ASME Journal of Microelectromechanical Systems (in press)

Stiction is a failure mode of microelectromechanical systems (MEMS) involving permanent adhesion of moving surfaces. Models of stiction typically describe the adhesion as a multiple asperity adhesive ... [more ▼]

Stiction is a failure mode of microelectromechanical systems (MEMS) involving permanent adhesion of moving surfaces. Models of stiction typically describe the adhesion as a multiple asperity adhesive contact between random rough surfaces, and they thus require a sufficiently accurate statistical representation of the surface, which may be non-Gaussian. If the stiction is caused primarily by multiple asperity adhesive contact in only a small portion of the apparent area of the contacting surfaces, the number of adhesive contacts between asperities may not be sufficiently statistically significant for a homogenized model to be representative. In [Hoang et al., A computational stochastic multiscale methodology for MEMS structures involving adhesive contact, Tribology International, 110:401-425, 2017], the authors have proposed a probabilistic multiscale model of multiple asperity adhesive contact that can capture the uncertainty in stiction behavior. Whereas the previous paper considered Gaussian random rough surfaces, the aim of the present paper is to extend this probabilistic multiscale model to non-Gaussian random rough surfaces whose probabilistic representation accounts for the high order statistical moments of the surface height. The probabilistic multiscale model thus obtained is validated by means of a comparison with experimental data of stiction tests of cantilever beams reported in the literature. [less ▲]

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See detailDo metaphors matter? The impact of a metaphor on citizens’ representations and preferences about federalism
Dodeigne, Jérémy ULiege; Perrez, Julien ULiege; Reuchamps

in Regional & Federal Studies (in press)

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See detailFib3-3 as a biomarker for osteoarthritis in a rat model with metabolic dysregulation
de Visser, Huub; Sanchez, Christelle ULiege; Mastbergen, Simon et al

in CARTILAGE (in press)

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See detailWorking memory treatment in aphasia: a theoretical and quantitative review.
Majerus, Steve ULiege

in Journal of Neurolinguistics (in press)

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

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 detailLes limites de la Psychopathy Checklist-Revised (PCL-R) dans une population médico-légale souffrant de schizophrénie
De Page, Louis; Matteucci, Marie; Englebert, Jérôme ULiege

in Annales Médico-Psychologiques (in press)

Aim: The Psychopathy Checklist-Revised (PCL-R) is the most studied and validated instrument to measure psychopathy. We aimed to explore its items content invariance to forensic schizophrenic subjects ... [more ▼]

Aim: The Psychopathy Checklist-Revised (PCL-R) is the most studied and validated instrument to measure psychopathy. We aimed to explore its items content invariance to forensic schizophrenic subjects. Method: We examined the PCL-R protocol of 15 male forensic schizophrenic subjects and attributed a score of sensitivity to psychotic symptomatology to each item score. Results: Results suggest that the applicability of the PCL-R items to a forensic schizophrenic sample is not to be blindly warranted. Some items more systematically positively influenced by psychotic symptoms (e.g. Shallow Affect, Lack of Remorse or Guilt), while others were negatively influenced (e.g. Promiscuous Sexual Behavior, Glib and Superficial Charm), or not influenced at all (e.g. Criminal Versatility). Conclusions: The current study suggest that the applicability of the PCL-R items to a forensic schizophrenic sample is not to be blindly warranted. We discuss both psychometric and conceptual implications for the measurement of psychopathy when a diagnosis of schizophrenia has been established. [less ▲]

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See detailImpact of high magnification sperm selection on neonatal outcomes: a retrospective study.
GASPARD, Olivier ULiege

in Journal of Assisted Reproduction & Genetics (in press)

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See detailCompte rendu : Marc Kiwitt, Les gloses françaises du glossaire biblique B.N. hébr. 301
Baiwir, Esther ULiege

in Moyen Age (Le) (in press)

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See detailAgroforestry for ruminants: a review of trees and shrubs as fodder in silvopastoral temperate and tropical production systems
Vandermeulen, Sophie; Ramirez Restrepo, Carlos; Beckers, Yves ULiege et al

in Animal production science (in press)

Among the oldest agroforestry systems, silvopastoralism uses shrubs and trees to feed ruminants. The practice is common in extensive livestock production systems, while the intensification of grass-based ... [more ▼]

Among the oldest agroforestry systems, silvopastoralism uses shrubs and trees to feed ruminants. The practice is common in extensive livestock production systems, while the intensification of grass-based systems in the past century has led to the removal of woody species from agricultural temperate landscapes. In Europe however, woody species are promoted again on grasslands through environment-friendly policies due to the ecosystem services they provide such as carbon sequestration, control of soil erosion, limitation of air-borne pollutants and biodiversity conservation. Positive effects of browse on rumen digestion and parasite control have also been documented across different plant species and regions. Under optimal conditions, feeding ruminants from woody fodder sustains animal production. Nonetheless, limitations can restrict the use of woody forage into animal diets, such as the presence of anti-nutritive and toxic compounds. The incorporation of this resource in ruminant feeding systems raises the question of the management of the interface between the plant and the animal. Various management systems are practiced. Temperate species such as Salix spp. and Populus spp. are fed to sheep and cattle in fodder blocks or by pruning trees in New Zealand, and Fraxinus spp. or Corylus avellana in hedgerows supply forage to livestock in Belgium, while Leucaena leucocepahala and Desmanthus spp. browsing is common in Australia. Nowadays, ensiling and pelleting techniques are being developed as a way to store browse forage. As the renewed interest in using shrubs and trees to feed ruminants is recent, especially in temperate regions, additional research about introducing optimally this resource within systems is needed. [less ▲]

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See detailVideo Games in France and Francophone Belgium. Discourses and cultural legitimation
Delbouille, Julie ULiege

in Contemporary French Civilization (in press)

Since its first appearance in the early 1960s, video game has become one of the most popular forms of entertainment in France and francophone Belgium. As for other cultural industries, the last decades ... [more ▼]

Since its first appearance in the early 1960s, video game has become one of the most popular forms of entertainment in France and francophone Belgium. As for other cultural industries, the last decades have seen the emergence of multiple discourses around video game, whether they come from the media, the public or the private sphere. From the themes of violence and addiction to the perception of video game as a cultural object, this paper aims to provide a comprehensive overview of game-related discourses and representations (and their recent evolution) in Francophone Europe. [less ▲]

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See detailL’activité éditoriale comme démarche de représentation de la connaissance: l’exemple de la ponctuation médiévale
Mazziotta, Nicolas ULiege

in Diachroniques: Revue de linguistique française diachronique (in press)

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See detailPlatelets contribute to the initiation of colitis-associated cancer by promoting immunosuppression
Servais, Laurence ULiege; Wéra, Odile ULiege; Dibato Epoh, John et al

in Journal of Thrombosis and Haemostasis (in press)

Background: Clinical and experimental evidence support a role for inflammation in the development of colorectal cancer, though the mechanisms are not fully understood. Beyond thrombosis and hemostasis ... [more ▼]

Background: Clinical and experimental evidence support a role for inflammation in the development of colorectal cancer, though the mechanisms are not fully understood. Beyond thrombosis and hemostasis, platelets are key actors of inflammation; they also have been involved in cancer. However, whether platelets participate in the link between inflammation and cancer is unknown. Objective: To investigate the contribution of platelets and platelet-derived proteins to inflammation-elicited colorectal tumor development. Methods: We used a clinically relevant mouse model of colitis-associated cancer. Platelet secretion and their reactivity to thrombin were assessed at each stage of carcinogenesis. We conducted an unbiased proteomic analysis of releasates of platelets isolated at pre-tumoral stage to identify soluble factors that might act on tumor development. Plasma levels of the identified proteins were measured during the course of carcinogenesis. We then treated the mice with clopidogrel to efficiently inhibit platelet release reaction. Results: At pre-tumoral stage, hyperactive platelets were a major source of circulating pro-tumoral serum amyloid A (SAA) proteins. Clopidogrel prevented the early elevation of plasma SAA, decreased colitis severity, and delayed the formation of dysplastic lesions and adenocarcinoma. Platelet inhibition hindered the expansion and function of immunosuppressive myeloid cells as well as their infiltration in tumors, while tissue CD8 T cells were augmented. Platelets or releasates of platelets from cancer mice both were able to polarize myeloid cells toward an immunosuppressive phenotype. Conclusions: Thus, platelets promote initiation of colitis-associated cancer by enhancing myeloid cell dependent immunosuppression. Antiplatelet agents may help prevent inflammation-elicited carcinogenesis by restoring antitumor immunity. [less ▲]

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See detailA new multifractional process with random exponent
Ayache, Antoine; Esser, Céline ULiege; Hamonier, Julien

in Risk and Decision Analysis (in press)

A first type of Multifractional Process with Random Exponent (MPRE) was constructed several years ago by replacing in a wavelet series representation of Fractional Brownian Motion (FBM) the Hurst ... [more ▼]

A first type of Multifractional Process with Random Exponent (MPRE) was constructed several years ago by replacing in a wavelet series representation of Fractional Brownian Motion (FBM) the Hurst parameter by a random variable depending on the time variable. In the present article, we propose another approach for constructing another type of MPRE. It consists in substituting to the Hurst parameter, in a stochastic integral representation of the high-frequency part of FBM, a random variable depending on the integration variable. The MPRE obtained in this way offers, among other things, the advantages to have a representation through classical Itô integral and to be less difficult to simulate than the first type of MPRE, previously introduced. Yet, the study of Hölder regularity of this new MPRE is a significantly more challenging problem than in the case of the previous one. Actually, it requires to develop a new methodology relying on an extensive use of the Haar basis. [less ▲]

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See detailPhysicochemical Properties of some Honeys Produced from Different Flora of Eastern Morocco
Abselami, A.; Tahani, A.; Sindic, Marianne ULiege et al

in Journal of Materials and Environmental Science (in press)

The principal aim of this study was to contribute more to the knowledge of the eastern Moroccan honey by means of the analysis of physicochemical characteristics with different flora of eastern Morocco ... [more ▼]

The principal aim of this study was to contribute more to the knowledge of the eastern Moroccan honey by means of the analysis of physicochemical characteristics with different flora of eastern Morocco. Thirty one honey samples were collected from beekeepers in different regions of eastern Morocco. In this study, pH, free acidity, electrical conductivity (EC), water content, diastase, hydroxymethylfurfural (HMF) and Protein content were all determined in different types of eight flora honey jujube, Multifloral, Citrus, Eucalyptus, thyme, carob, lavender and Rosemary. The moisture shows values of 15.39% and 19.37%, pH between 3.53 and 4.94, the free acidity ranges between 5.77 and 19.47 meq/kg, hydroxymethylfurfural (HMF) content shows values between 3.98 and 56.14mg/kg; diastase values were between 6.98 and 21.17 Gothe; electrical conductivity between 108 and 626 μs/cm and Saccharase content values range between 1.16-11.91 U.E/kg. A statistical analysis was carried out to classify eight types of honeys, and identified the most significant parameters, using analysis of variance, principal component analysis (PCA). PCA showed that the cumulative variance was 71.91%. The present study revealed that eastern Morocco honey is a good quality. [less ▲]

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See detailHeboidophrenia and pseudopsychopathic schizophrenia: Literature review and critical perspective
De Page, Louis; Englebert, Jérôme ULiege

in Psychopathology (in press)

In this article, based on extensive literature review, we present an integrated description of heboidophrenia and pseudo-psychopathic schizophrenia. Both diagnostic constructs describe latent psychotic ... [more ▼]

In this article, based on extensive literature review, we present an integrated description of heboidophrenia and pseudo-psychopathic schizophrenia. Both diagnostic constructs describe latent psychotic processes inextricably bound with psychopathic features. Although both syndromes have been described in different eras and research threads, they are that similar that we could not find divergent characteristics. We formulated operational criteria for clinical and research purpose. The recognition of this syndrome improves risk management, treatment and legal decisions. [less ▲]

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See detailLa tradition manuscrite de la « Post-Vulgate ». Histoire d’une diaspora textuelle
Morato, Nicola ULiege

in Revue de Linguistique Romane (in press)

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See detailIllness perceptions explain the variance in functional disability, but not habitual physical activity, in patients with chronic low back pain: A cross-sectional study
Leysen, Marijke; Nijs, Jo; Van Wilgen, Paul et al

in Pain Practice (in press)

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See detailSuivre ou guider son public ? Le rapport aux lecteurs dans le Journal historique et littéraire de l’antiphilosophe François-Xavier de Feller
Teicher, Elie ULiege

in Revue Belge de Philologie et d'Histoire (in press), 95

In the eighteenth century, literary journals have set a specific relationship with their readers. By publishing letters from the public and by answering to their demands (or not), the journalists have ... [more ▼]

In the eighteenth century, literary journals have set a specific relationship with their readers. By publishing letters from the public and by answering to their demands (or not), the journalists have established a readers’ community that share a common cultural universe. This article aims at analyzing the relationship between the antiphilosophe François-Xavier de Feller and the readership of his Journal historique et littéraire. The journalist, who wishes to fight against the philosophes and to spread his own radical ideas above all, has however taken his public’s capacity of reaction into account. This article will question the mechanisms of this relationship by considering the letters from the public to the editor but also Feller’s own addresses to his readership published in the journal. Even if he refuses the idea that every man is able to use his own critical reason, the journalist has been influenced by his readership but, more importantly, he has maintained in his public a new form of criticism, radically opposed to the ideas of Enlightenment. [less ▲]

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See detailIPCAPS: an R package for iterative pruning to capture population structure
Chaichoompu, Kridsadakorn ULiege; Abegaz Yazew, Fentaw; Tongsima, Sissades et al

in Bioinformatics : Application Notes (in press)

Resolving population genetic structure is challenging, especially when dealing with closely related populations. Although Principal Component Analysis (PCA)-based methods and genomic var- iation with ... [more ▼]

Resolving population genetic structure is challenging, especially when dealing with closely related populations. Although Principal Component Analysis (PCA)-based methods and genomic var- iation with single nucleotide polymorphisms (SNPs) are widely used to describe shared genetic an- cestry, improvements can be made targeting fine-level population structure. This work presents an R package called IPCAPS, which uses SNP information for resolving possibly fine-level population structure. The IPCAPS routines are built on the iterative pruning Principal Component Analysis (ipP- CA) framework to systematically assign individuals to genetically similar subgroups. Our tool is able to detect and eliminate outliers in each iteration to avoid misclassification. It can be extended to de- tect subtle subgrouping in patients as well. In addition, IPCAPS supports different measurement scales for variables used to identify substructure. Hence, panels of gene expression and methylation data can be accommodated. [less ▲]

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See detailTranslation, Adaptation, and Preliminary Validation of Dacakis and Davies' "Transsexual Voice Questionnaire (Male to Female)" in French.
Morsomme, Dominique ULiege; Revis, Joana; Thomas, Elisabeth

in Journal of Voice (in press)

Transgender MtF people (trans women) consult otorhinolaryngologists and vocologists with the aim of feminizing their voice and being consistently perceived as women. Treatment of these trans women always ... [more ▼]

Transgender MtF people (trans women) consult otorhinolaryngologists and vocologists with the aim of feminizing their voice and being consistently perceived as women. Treatment of these trans women always begins with a vocal assessment that is relatively unspecific as it was originally constructed for individuals with dysphonia. OBJECTIVES: This study examines the subjective portion of the assessment and specifically the self-assessment questionnaire. There is no French-language questionnaire designed to identify the issues facing people who want voice feminization and quantify the impact of their voice disorder on their daily lives. We present a translation and adaption into French of the questionnaire developed by Dacakis et al [6]. METHODS: This work follows the World Health Organization recommendations [12] regarding translation. Thirty-six Belgian and French trans women took part in this study. RESULTS: The results show excellent repeatability and reliability, while the construct validity measures show that the items correlate with six areas of concern for trans women identified by Davies and Johnson [7] in a previous study. The domains are the following: effect of voice on ease of social interaction, effect of voice on emotions, relationship between voice and gender identity, effort and concentration required to produce voice, physical aspects of voice production, and pitch. Concurrent validity could not be measured owing to lack of sufficiently detailed stories. CONCLUSION: The psychometric properties of the French version of the questionnaire are acceptable. The questionnaire can be used as is in daily clinical practice. [less ▲]

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See detailLevallois et Gravettien
Otte, Marcel ULiege; Noiret, Pierre ULiege

in Praehistoria (in press)

Par opposition à ceux de l’Aurignacien, les ensembles lithiques gravettiens procèdent selon une méthode rappelant le Levallois quant à la préparation des supports. Mais les variations observables au sein ... [more ▼]

Par opposition à ceux de l’Aurignacien, les ensembles lithiques gravettiens procèdent selon une méthode rappelant le Levallois quant à la préparation des supports. Mais les variations observables au sein du Gravettien touchent autant les processus de symbolisation dans l’art et les sépultures. Elles affectent différents substrats eurasiatiques, plutôt septentrionaux, comme mis en réserve dès les Néandertaliens. [less ▲]

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See detailReview of Kai Mikkonen's Narrative Paths: African Travel in Modern Fiction and Nonfiction
Tunca, Daria ULiege

in Literary Research / Recherche littéraire (in press)

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See detailIntermediaries, transport costs and interlinked transactions
Lefevre, Mélanie ULiege; Tharakan, Joseph ULiege

in Review of Development Economics (in press)

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See detailPD-L1 expression is regulated by both DNA methylation and NF-kB during EMT signaling in non-small cell lung carcinoma
Asgarova, Afag; Asgarov, Kamal; Godet, Yann et al

in Oncoimmunology (in press)

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See detailA.P.M.H. Lardinois, J.H Blok et M.G.M. Van der Poel, Sacred Words: Orality, Literacy and Religion, Leiden-Boston, Brill, 2011
Delli Pizzi, Aurian ULiege

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

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See detailBelgian and Swiss service providers faced with the challenge of jobseeker guidance. Predominance of stakeholder games or of the collaborative framework?
Remy, Céline ULiege

in International Review of Administrative Sciences (in press)

The public employment services have contracted out their jobseeker guidance role to service providers. The paper focuses on how the collaboration between the public services and private employment ... [more ▼]

The public employment services have contracted out their jobseeker guidance role to service providers. The paper focuses on how the collaboration between the public services and private employment operators is organised in Belgium and Switzerland. These partnerships have to contend with two challenges, which are the recruitment of candidates for training projects and the measurement of the results of the service. Our initial hypothesis supports the idea that stakeholder games are more effective in solving critical situations than the collaborative framework. The international comparison allows us to vary the partnership creation methods and to show a particular articulation between the stakeholder games and collaborative framework. [less ▲]

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See detailWho takes care of non-standard career paths? The role of labour market intermediaries
Lorquet, Nadège; Orianne, Jean-François ULiege; Pichault, François ULiege

in European Journal of Industrial Relations (in press)

As flexible career paths become more common in European labour markets, how to combine the flexibility required by non-standard work with new patterns of security is the focus of political debate. Some ... [more ▼]

As flexible career paths become more common in European labour markets, how to combine the flexibility required by non-standard work with new patterns of security is the focus of political debate. Some European Union (EU) countries have launched radical labour market reforms, while in others such reforms remain limited. This paves the way for bottom-up solutions developed by private and non-profit labour market intermediaries in order to support the job transitions of non-standard workers. We map these initiatives through a multidimensional grid and explore the extent to which they contribute to renewed regulation of modern labour markets. We outline two ideal-typical approaches. The first extends internal labour markets to triangular employment relationships by considering workers as ‘quasi-employees’. The second involves more disruptive solutions by treating non-standard workers as ‘quasi-self-employed’. [less ▲]

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See detailThe Distribution of Spanish Books in Brussels during the 16th century
Adam, Renaud ULiege

in Quaerendo: A Journal Devoted to Manuscripts and Printed Books (in press)

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See detailLe populisme aux Etats-Unis : le rejet de l’élite
Jamin, Jérôme ULiege

in Amnis : Revue de Civilisation Contemporaine Europes/Amériques (in press), 17

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See detailA recent history of science cases for interferometry
Defrere, Denis ULiege; Aerts, C.; Kishimoto, M. et al

in Experimental Astronomy: Astrophysical Instrumentation and Methods (in press), 1801

Optical long-baseline interferometry is a unique and powerful technique for astronomical research. Since 2004, optical interferometers have produced an increasing number of scientific papers covering ... [more ▼]

Optical long-baseline interferometry is a unique and powerful technique for astronomical research. Since 2004, optical interferometers have produced an increasing number of scientific papers covering various fields of astrophysics. As current interferometric facilities are reaching their maturity, we take the opportunity in this paper to summarize the conclusions of a few key meetings, workshops, and conferences dedicated to interferometry. We present the most persistent recommendations related to science cases and discuss some key technological developments required to address them. In the era of extremely large telescopes, optical long-baseline interferometers will remain crucial to probe the smallest spatial scales and make breakthrough discoveries. [less ▲]

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See detailPer una edizione integrale e analitica dell'incipit della Storia d'Italia di Francesco Guicciardini
Moreno, Paola ULiege

in Laboratoire Italien : Politique et Société (in press)

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See detailThe use of a β-lactamase – based conductimetric biosensor assay to detect biomolecular interactions
Vandevenne, Marylène ULiege; Dondelinger, Mathieu; Yunus, Sami et al

in Journal of visualized experiments (in press)

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See detailNote a Jacopino del Conte e approfondimenti sulla sua attività giovanile
Geremicca, Antonio ULiege

in Proporzioni. Annali della Fondazione Roberto Longhi (in press)

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See detailCultural, ethnic and political dimensions of the transformation of Mediterraneaness in Neapolitan contemporary music.
Mazzola, Alessandro ULiege

in Ethnic and Racial Studies (in press)

In the Italian public debate, the Mediterranean has represented a discursive formation employed to describe the South as the Other of the North. It has been associated with ‘soft’ representations of ... [more ▼]

In the Italian public debate, the Mediterranean has represented a discursive formation employed to describe the South as the Other of the North. It has been associated with ‘soft’ representations of cultural order and ‘hard’ discourses of civicness that identify the South along a specific set of sociocultural elements, moral norms and forms of civic organization. The Italian city of Naples holds much empirical evidence as an originator of such Mediterranean discursive formation. Since the early 1990s, singer-songwriters and musicians have attempted to transform this discursive formation and to popularize a positive idea of Mediterraneaness on a cultural, ethnic and political dimension. The aim of this article is to explore this process through musical and ethnographic sources. Neapolitan artists Eugenio Bennato, Almamegretta and 99 Posse provide the case studies. [less ▲]

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See detailPredicting Ion Mobility-Mass Spectrometry Trends of Polymers using the Concept of Apparent Densities
Haler, Jean ULiege; Morsa, Denis ULiege; Lecomte, Philippe ULiege et al

in Methods (in press)

Ion Mobility (IM) coupled to Mass Spectrometry (MS) has been used for several decades, bringing a fast separation dimension to the MS detection. IM-MS is a convenient tool for structural elucidation. The ... [more ▼]

Ion Mobility (IM) coupled to Mass Spectrometry (MS) has been used for several decades, bringing a fast separation dimension to the MS detection. IM-MS is a convenient tool for structural elucidation. The fold- ing of macromolecules is often assessed with the support of computational chemistry. However, this strat- egy is strongly dependent on computational initial guesses. Here, we propose the analysis of the Collision Cross-Section (CCS) trends of synthetic homopolymers based on a fitting method which does not rely on computational chemistry a prioris of the three-dimensional structures. The CCS trends were evaluated as a function of the polymer chain length and the charge state. This method is also applicable to mobility trends. It leads to two parameters containing all information available through IM(-MS) measurements. One parameter can be interpreted as an apparent density. The second parameter is related to the shape of the ions and leads us to introduce the concept of trends with constant apparent density. Based on the two fitting parameters, a method for IM trend predictions is elaborated. Experimental deviations from the predictions facilitate detect- ing structural rearrangements and three-dimensional structure differences of the cationized polymer ions. This leads for instance to an easy identification and prediction of the presence of different polymer topologies in complex polymer mixtures. The classification of predicted trends could as well allow for software-assisted data processing. Finally, we suggest the link between the CCS trends of homopolymers and those obtained from (monodisperse) biomolecules to interpret potential folding differences during IM-MS studies. [less ▲]

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See detailKings and Elites in an Intercultural Tradition: From Diodorus to the Egyptian Temples
Caneva, Stefano ULiege

in Greece and Rome (in press), 65

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See detailHow can new players establish themselves in highly institutionalized labour markets? A Belgian case study in the area of project-based work
Xhauflair, Virginie ULiege; Huybrechts, Benjamin ULiege; Pichault, François ULiege

in British Journal of Industrial Relations (in press)

How can new players seeking to serve nonstandard worker categories (such as project-based workers) establish themselves into labour markets that are highly institutionalized? This paper explores the case ... [more ▼]

How can new players seeking to serve nonstandard worker categories (such as project-based workers) establish themselves into labour markets that are highly institutionalized? This paper explores the case of SMart, a Belgian community-based labour market intermediary that successfully developed solutions to better represent the interests of project-based workers and secure their discontinuous careers. Using an organizational legitimacy approach, we find that labour market entry and growth involve different types of boundary-crossing when addressing the needs of workers that do not fit into established categories. However, to justify boundary-crossing, the new player must complement its pragmatic work on delivering new services and tools with conceptual (cognitive) and structural (moral) legitimation work. [less ▲]

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See detailTesting a Mixture Model of Single-Peaked Preferences
Smeulders, Bart ULiege

in Mathematical Social Sciences (in press)

Single-Peaked preferences play an important role in the social choice literature. In this paper, we look at necessary and sufficient conditions for aggregated choices to be consistent with a mixture model ... [more ▼]

Single-Peaked preferences play an important role in the social choice literature. In this paper, we look at necessary and sufficient conditions for aggregated choices to be consistent with a mixture model of single-peaked preferences for a given ordering of the alternatives. These conditions can be tested in time polynomial in the number of choice alternatives. In addition, algorithms are provided which identify the underlying ordering of choice alternatives if the ordering is unknown. These algorithms also run in polynomial time, providing an efficient test for the mixture model of single-peaked preferences. [less ▲]

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See detailA laboratory high-throughput glass chamber using dynamic headspace TDGC/ MS method for the analysis of whole Brassica napus L. plantlet volatiles under cadmium-related abiotic stress
Durenne, Bastien ULiege; Blondel, Alodie; Druart, Philippe et al

in Phytochemical Analysis (in press)

The dynamic headspace sampling technique using thermal desorption, gas chromatography and mass spectrometry (TD-GC/MS) is a powerful method for analysing plant emissions of volatile organic compounds ... [more ▼]

The dynamic headspace sampling technique using thermal desorption, gas chromatography and mass spectrometry (TD-GC/MS) is a powerful method for analysing plant emissions of volatile organic compounds (VOCs). The main purpose of this study was to set-up a laboratory high-throughput glass chamber for whole plant volatiles analysis. The trapping method produced reliable qualitative profiles of oilseed rape VOCs. Moreover, this inexpensive and non-invasive dynamic sampling technique has potential for wide application in sterile approach and replicated research. [less ▲]

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See detailPoly(N-methylvinylamine)-based copolymers for improved gene transfection
Dréan, Mathilde; Debuigne, Antoine ULiege; Jérôme, Christine ULiege et al

in Macromolecular Bioscience (in press)

Poly(N-methylvinylamines) with secondary amines can form complexes with plasmid DNA (pDNA) and provide transfection efficiency in HeLa cells in the same order as linear polyethyleneimine but with higher ... [more ▼]

Poly(N-methylvinylamines) with secondary amines can form complexes with plasmid DNA (pDNA) and provide transfection efficiency in HeLa cells in the same order as linear polyethyleneimine but with higher cell viability. Chemical modifications of poly(N-methylvinylamine) backbones are performed to further improve transfection efficiency while maintaining low degree of cytotoxicity. In a first type of polymer, primary amino groups are incorporated via a copolymerization strategy. In a second one, primary amino and imidazole groups are incorporated also via a copolymerization strategy. In a third one, secondary amino groups are substituted with methylguanidine functions through a postpolymerization reaction. Thus, novel polymers of various molecular masses are synthesized, characterized, and their interaction with pDNA studied. Then, their transfection efficiency and cytotoxicity are tested in HeLa cells. Two polymethylvinylamine-based copolymers, one containing 20% of imidazole moieties and another one composed of 12% of guanidinyl units allow remarkable transfection efficiency of HeLa, pulmonary (16HBE), skeletal muscle (C2C12), and dendritic (DC2.4) cells. Overall, this work thus identifies new promising DNA carriers and chemical modifications that improve the transfection efficiency while maintaining low degree of cytotoxicity. [less ▲]

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See detailLe phénotype d’Akhenaton ; revue critique entre canons artistiques et expression pathologique.
JEDIDI, Zayd ULiege; JEDIDI, Haroun ULiege; LAVEAUX, Elisabeth ULiege et al

in Revue Médicale de Liège (in press)

Of all the royal families of ancient or modern fame, few are as iconic as the eighteenth dynasty of pharaohs of the New Kingdom of Egypt, whose opulence and deeds we are still familiar to nearly 3,500 ... [more ▼]

Of all the royal families of ancient or modern fame, few are as iconic as the eighteenth dynasty of pharaohs of the New Kingdom of Egypt, whose opulence and deeds we are still familiar to nearly 3,500 years after their time. Tenth pharaoh of this dynasty and father of Tutankhamun, Akhenaten (Amenhotep/Amenhotep IV) still fascinates Egyptologists and history lovers through the many questions surrounding his atypical rule. One of the most striking aspects of the so-called Amarna period concerns the representations of the pharaoh himself, very confusing compared to the traditional iconography of the New Kingdom. These intriguing portraits of Pharaoh raised a whole lot of medical assumptions, more or less substantiated. We review here the main theories developed throughout history. [less ▲]

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See detailLe trouble bipolaire de l’adolescent : Comment favoriser un diagnostic et une prise en charge précoce ?
Simon, Michaël ULiege

in Acta Psychiatrica Belgica (in press)

In half the cases, bipolar disorder begins before adulthood. The usual long delay between its onset and the establishment of proper treatment has adverse effects on the developing brain. The prognosis of ... [more ▼]

In half the cases, bipolar disorder begins before adulthood. The usual long delay between its onset and the establishment of proper treatment has adverse effects on the developing brain. The prognosis of the disease could be improved by early diagnosis and treatment. From the case of a manic episode in a 16 year old teenager, we discuss the characteristics of manic prodromes, their diagnostic criteria and therapeutic means. We then criticize the concept of diagnosis in the stage of prodromal symptoms. We propose to dispense with the need for diagnosis and promote access to mental health care to any person with mental suffering. [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 ULiege

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

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See detailFamiliennamen zwischen Maas und Rhein
Möller, Robert ULiege

in Rheinische Vierteljahrsblätter (in press)

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See detailRôle et langue de Tchantchès dans les représentations en castelets des romans de chevalerie : le cas des Quatre fils Aymon
Baiwir, Esther ULiege; Impe, Anaëlle

in Enquêtes du Musée de la Vie Wallonne (in press)

Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du ... [more ▼]

Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du répertoire liégeois ? Quels sont ses moyens d'action, mais également ses modes d'expression ? Divers registres de langue apparaissent au fil des spectacles ; quels sont ceux prêtés à notre héros ? Et surtout, ce rôle et cette langue ont-ils évolué au fil du temps ? C’est à ces quelques questions que nous tentons de répondre, en observant les différentes interventions de Tchantchès dans les réécritures des aventures des quatre fils Aymon, l’une des œuvres les plus anciennes et les plus fréquemment jouées dans les théâtres liégeois dévolus aux comédiens de bois. [less ▲]

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See detailLa terminologie grecque et latine du plurilinguisme
Rochette, Bruno ULiege

in Lingue Antiche e Moderne (in press)

The aim of this article is to study the words and expressions in Greek and Latin relating to multilingualism, especially the compounds in –φωνος and in –γλωσσος in Greek and those in –lingua in Latin. I ... [more ▼]

The aim of this article is to study the words and expressions in Greek and Latin relating to multilingualism, especially the compounds in –φωνος and in –γλωσσος in Greek and those in –lingua in Latin. I start by examining some texts related to the awareness of the linguistic diversity and multilingualism in Greece, in Rome and in the Jewish-Christian thought, from Homer to Augustine. Next, after having studied the terminology in Greek and Latin, I consider some case studies of inter-linguistic communication and multilingualism in Greek and Latin authors. In the conclusion, I compare the ancient terminology of the multilingualism with some aspects of the modern terminology in French. [less ▲]

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See detailMilk-clotting properties of plant rennets and their enzymatic, rheological and sensory role in cheese making: a Review
Ben Amira, Amal; Besbes, Souhail; Attia, Hamadi et al

in International Journal of Food Properties (in press)

Plant rennets hold an important position amongst various coagulants used in cheese technology. The selection of a suitable plant coagulant is important due to the increasing global demands of cheese ... [more ▼]

Plant rennets hold an important position amongst various coagulants used in cheese technology. The selection of a suitable plant coagulant is important due to the increasing global demands of cheese alongside reduced supply of calf rennet. Thus, a literature synthesis is presented to investigate recent achievements on their functional properties and enzymatic role in cheese making. Efforts have also been done to compare certain rheological and sensory properties of final products, arising from some plant and animal based rennets. In fact, some coagulants such as actinidin or dubiumin produce cheeses with sensory qualities similar to those produced by animal rennet. Others, like ginger, cucumisin or hieronymain proteases contribute to develop very different textures and flavors, due to excessive proteolytic activity and production of bitter peptides. For milk-clotting enzymes with high non-specific action, several improvement strategies have been developed to produce cheeses with sensory properties close to those of animal rennet. For example, the mixture of coagulants (cardosins/chymosin), the selection of appropriate milk or its ultrafiltration, as well as the increase of salting time of cheese during ripening could be efficient ways to improve texture and reduce bitterness. Concerning cheeses with high yield loss, the whey could be used for a traditional production of whey cheese. To conclude, the selection of appropriate plant rennet with high MCA/PA ratio and the optimization of all coagulation parameters play a central role in manufacturing cheese with superior rheological and sensory properties. [less ▲]

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See detailThinking literature across continents
Gerday, Laura ULiege

in Journal of Postcolonial Writing (in press)

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See detailMacroelement for Complete Shear Behaviour of Continuous Deep Girders
Liu, Jian ULiege; Mihaylov, Boyan ULiege

in ACI Structural and Materials Journals (in press)

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See detailFluid and Electrolytes (Na, Cl and K) in Paediatric Parenteral Nutrition
Jochum, Franck; Moltu, Sissel; SENTERRE, Thibault ULiege et al

in Clinical Nutrition (in press)

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See detailSteady-State, Nonlinear Analysis of Large Arrays of Electrically Actuated Micromembranes Vibrating in a Fluid
Halbach, Alexandre ULiege; Geuzaine, Christophe ULiege

in Engineering with Computers (in press)

This paper describes a robust and efficient method to obtain the steady-state, nonlinear behaviour of large arrays of electrically actuated micromembranes vibrating in a fluid. The nonlinear ... [more ▼]

This paper describes a robust and efficient method to obtain the steady-state, nonlinear behaviour of large arrays of electrically actuated micromembranes vibrating in a fluid. The nonlinear electromechanical behavior and the multiple vibration harmonics it creates are fully taken into account thanks to a multiharmonic finite element formulation, generated automatically using symbolic calculation. A domain decomposition method allows to consider large arrays of micromembranes by efficiently distributing the computational cost on parallel computers. Two- and three- dimensional examples highlight the main properties of the proposed method. [less ▲]

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See detailTranscriptional effects of phospholipid fatty acid profile on rainbow trout liver cells exposed to methylmercury
Ferain, Aline; Bonnineau, Chloé; Neefs, Inneke et al

in Aquatic Toxicology (in press)

Lipids, and their constitutive fatty acids, are key nutrients for fish health as they provide energy, maintain cell structure, are precursors of signalling molecules and act as nuclear receptor ligands ... [more ▼]

Lipids, and their constitutive fatty acids, are key nutrients for fish health as they provide energy, maintain cell structure, are precursors of signalling molecules and act as nuclear receptor ligands. These specific roles may be of crucial importance in a context of exposure to pollutants. We recently showed that the fatty acid profile of rainbow trout liver cell phospholipids modulates sensitivity to an acute methylmercury challenge. In order to investigate mechanisms of effects, we herein tested whether specific polyunsaturated fatty acids may protect cells from methylmercury through decreasing intracellular mercury accumulation and/or enhancing cellular defences (e.g. via modulation of gene expression patterns). We also investigated the inverse relationship and assessed the impact of methylmercury on cellular fatty acid metabolism. To do so, the fatty acid composition of rainbow trout liver cell phospholipids was first modified by incubating them in a medium enriched in a specific polyunsaturated fatty acid (PUFA) from either the n-3 family (alpha-linolenic acid, ALA; eicosapentaenoic acid, EPA) or the n-6 family (linoleic acid, LA; arachidonic acid, AA). Cells were then exposed to methylmercury (0.15 or 0.50 μM) for 24 h and sampled thereafter for assessing phospholipid fatty acid profile, intracellular total mercury burden, and expression pattern of genes involved in fatty acid metabolism, synthesis of polyunsaturated fatty acid-derived signalling molecules and stress response. We observed that cells incorporated the given polyunsaturated fatty acid and some biotransformation products in their phospholipids. MeHg had few impacts on this cellular phospholipid composition. None of the PUFA enrichments affected the cellular mercury burden, suggesting that the previously observed cytoprotection conferred by ALA and EPA was not linked to a global decrease in cellular accumulation of mercury. Fatty acid enrichments and methylmercury exposure both modulated gene expression patterns. Genes involved in the synthesis of polyunsaturated fatty acid-derived signalling molecules, in stress response and the orphan cytochrome P450 20A1 were identified as possible sites of interaction between fatty acids and methylmercury in rainbow trout liver cells. [less ▲]

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See detailSensitive parameters in local agricultural life cycle assessments: the illustrative case of cereal production in Wallonia, Belgium
van Stappen, Florence; Mathot, Michael; Loriers, Astrid et al

in International Journal of Life Cycle Assessment (in press)

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See detailCompte rendu de G. TOUSSAINT, Kreuz und Knochen. Reliquien zur Zeit der Kreuzzüge, Berlin, 2011.
George, Philippe ULiege

in Cahiers de Civilisation Médiévale (in press)

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See detailA Markov-switching Generalized additive model for compound Poisson processes, with applications to operational losses models
Hambuckers, julien ULiege; Kneib, Thomas; Langrock, Roland et al

in Quantitative Finance (in press)

This paper is concerned with modeling the behavior of random sums over time. Such models are particularly useful to describe the dynamics of operational losses, and to correctly estimate tail-related risk ... [more ▼]

This paper is concerned with modeling the behavior of random sums over time. Such models are particularly useful to describe the dynamics of operational losses, and to correctly estimate tail-related risk indicators. However, time-varying dependence structures make it a difficult task. To tackle these issues, we formulate a new Markov-switching generalized additive compound process combining Poisson and generalized Pareto distributions. This flexible model takes into account two important features: on the one hand, we allow all parameters of the compound loss distribution to depend on economic covariates in a flexible way. On the other hand, we allow this dependence to vary over time, via a hidden state process. A simulation study indicates that, even in the case of a short time series, this model is easily and well estimated with a standard maximum likelihood procedure. Relying on this approach, we analyze a novel dataset of 819 losses resulting from frauds at the Italian bank UniCredit. We show that our model improves the estimation of the total loss distribution over time, compared to standard alternatives. In particular, this model provides estimations of the 99.9% quantile that are never exceeded by the historical total losses, a feature particularly desirable for banking regulators. [less ▲]

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See detailFlow field in shallow reservoir with varying inlet and outlet position
Ferrara, Velia; Erpicum, Sébastien ULiege; Archambeau, Pierre ULiege et al

in Journal of Hydraulic Research (in press)

Shallow reservoirs are used for multiple purposes, such as storm water retention and trapping of sediments. Reliable predictions of the flow fields are necessary to inform the design and operation of ... [more ▼]

Shallow reservoirs are used for multiple purposes, such as storm water retention and trapping of sediments. Reliable predictions of the flow fields are necessary to inform the design and operation of these structures. Using numerical simulations, we performed a systematic analysis of the influence of the location of the inlet and outlet on the flow fields developing in rectangular shallow reservoirs of various sizes. Depending on the relative location of the inlet and outlet with respect to the reservoir centreline, contrasting flow patterns are obtained, involving either no flow reattachment, or a jet reattached on either of the reservoir sidewalls. The results reveal also the occurrence of bi-stable flow configurations, i.e. different steady state flow fields are reached depending on the flow history. This is of high relevance for the design of shallow reservoirs as such configurations should certainly be avoided to achieve a robust hydraulic sizing of the reservoir. [less ▲]

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See detailLa question de l’éducation : aiguillon des philosophies politiques. Castoriadis/Rancière.
Wustefeld, Sophie ULiege

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

La démocratie reste un thème chéri par la philosophie politique contemporaine, pour l’écart entre ses théories et ses pratiques, pour la distance critique que ses théories offrent vis-à-vis des régimes ... [more ▼]

La démocratie reste un thème chéri par la philosophie politique contemporaine, pour l’écart entre ses théories et ses pratiques, pour la distance critique que ses théories offrent vis-à-vis des régimes démocratiques et de leur évolution, mais aussi parce qu’elle est un objet perpétuel de dissensus entre philosophes, au sujet duquel toute prétention à la véridiction est suspendue à sa réalisation pratique. À ce titre, la transmission de la volonté démocratique est un topos houleux de la philosophie politique contemporaine. Cette question catalyse les concepts pivots des philosophies politiques, la leur poser permet de mieux saisir les enjeux rivaux derrière une terminologie commune à plusieurs auteurs. C’est dans cette démarche que je vous propose d’examiner en miroir les philosophies de Cornélius Castoriadis et de Jacques Rancière. De plus en plus nombreux, des commentateurs rapprochent leurs pensées , qui peuvent s’appuyer sur plusieurs points communs : un attachement au concept de démocratie brandit contre les régimes parlementaires, une opposition contemporaine (quoique depuis des héritages différents) aux thèses défendues par Althusser, et une proximité de sources d’inspirations : la philosophie, le marxisme, et la psychanalyse. Partant de la manière dont cette proximité s’exprime dans la disjonction que chacun opère entre démocratie et science, je tenterai de discerner comment les inflexions qu’ils impriment aux concepts de volonté et d’égalité sous la guise des enjeux de la transmission dessinent des horizons politiques distincts, et dénotent des compréhensions antithétiques – mais indécidables dans la théorie – de ce que peut être la démocratie. [less ▲]

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See detailTunable artificial vortex ice in nanostructured superconductors with frustrated kagome lattice of paired antidots
Xue, Cun; Ge, J.-Y.; He, A. et al

in Physical Review B (in press)

Theoretical proposals for spin ice analogs based on nanostructured superconductors have suggested larger flexibility for probing the effects of fluctuations and disorder than in the magnetic systems. In ... [more ▼]

Theoretical proposals for spin ice analogs based on nanostructured superconductors have suggested larger flexibility for probing the effects of fluctuations and disorder than in the magnetic systems. In this work, we unveil the particularities of a vortex ice system by direct observation of the vortex distribution in a kagome lattice of paired antidots using scanning Hall probe microscopy. The theoretically suggested vortex ice distribution, lacking long range order, is observed at half matching field (H1/2). Moreover, the vortex ice state formed by the pinned vortices is still preserved at 2H1/3. This unexpected result is attributed to the introduction of interstitial vortices at these magnetic fi eld values. Although the interstitial vortices increase the number of possible vortex con figurations, it is clearly shown that the vortex ice state observed at 2H1/3 is less prone to defects than at H1/2. In addition, the non-monotonic variations of the vortex ice quality on the lattice spacing indicates that a highly ordered vortex ice state cannot be attained by simply reducing the lattice spacing. The optimal design to observe defect free vortex ice is discussed based on the experimental statistics. The direct observations of a tunable vortex ice state provides new opportunities to explore the order-disorder transition in arti ficial ice systems. [less ▲]

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

in Revue des Etudes Latines (in press)

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See detailUne conversion contestable de l’usufruit du conjoint survivant (note sous Gand (11e ch.), 19 novembre 2015)
Pottier, Alix ULiege

in Revue Générale de Droit Civil Belge (in press)

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See detailThe use of platelet-rich plasma (PRP) to treat chronic tendinopathies: a technical analysis
Kaux, Jean-François ULiege; Emonds-Alt, Thibault ULiege

in Platelets (in press)

Platelet-rich plasma (PRP) is blood plasma with a high concentration of autologous platelets which constitute an immense reservoir of growth factors. The clinical use of PRP is widespread in various ... [more ▼]

Platelet-rich plasma (PRP) is blood plasma with a high concentration of autologous platelets which constitute an immense reservoir of growth factors. The clinical use of PRP is widespread in various medical applications. Although highly popular with athletes, the use of PRP for the treatment of tendinopathies remains scientifically controversial, particularly due to the diversity of products that go by the name of “PRP.” To optimize its use, it is important to look at the various stages of obtaining PRP. In this literature review, we take a closer look at eight parameters which may influence the quality of PRP: 1) anticoagulants used to preserve the best platelet function, 2) the speed of centrifugation used to extract the platelets, 3) the platelet concentrations obtained, 4) the impact of the concentration of red and while blood cells on PRP actions, 5) platelet activators encouraging platelet degranulation and, hence, the release of growth factors, and 6) the use or nonuse of local anesthetics when carrying out infiltration. In addition to these parameters, it may be interesting to analyze other variables such as 7) the use of ultrasound guidance during the injection with a view to determining the influence they have on potential recovery. [less ▲]

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See detailSpace-based infrared interferometry to study exoplanetary atmospheres
Defrere, Denis ULiege; Léger, A.; Absil, Olivier ULiege et al

in Experimental Astronomy: Astrophysical Instrumentation and Methods (in press), 1801

The quest for other habitable worlds and the search for life among them are major goals of modern astronomy. One way to make progress towards these goals is to obtain high-quality spectra of a large ... [more ▼]

The quest for other habitable worlds and the search for life among them are major goals of modern astronomy. One way to make progress towards these goals is to obtain high-quality spectra of a large number of exoplanets over a broad range of wavelengths. While concepts currently investigated in the United States are focused on visible/NIR wavelengths, where the planets are probed in reflected light, a compelling alternative to characterize planetary atmospheres is the mid-infrared waveband (5-20um). Indeed, mid-infrared observations provide key information on the presence of an atmosphere, the surface conditions (e.g., temperature, pressure, habitability), and the atmospheric composition in important species such as H2O, CO2, O3, CH4, and N2O. This information is essential to investigate the potential habitability of exoplanets and to make progress towards the search for life in the universe. Obtaining high-quality mid-infrared spectra of exoplanets from the ground is however extremely challenging due to the overwhelming brightness and turbulence of Earth's atmosphere. In this paper, we present a concept of space-based mid-infrared interferometer that can tackle this observing challenge and discuss the main technological developments required to launch such a sophisticated instrument. [less ▲]

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See detailOrganisational aspects of paediatric parenteral nutrition
Puntis, J; Hojsak, I; Ksiazyk, J et al

in Clinical Nutrition (in press)

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See detailComparison of elemental composition in two wild and cultured marine fish and potential risks to human health
Marengo, Michel; Durieux, Eric Dominique Henry; Ternengo, Sonia et al

in Ecotoxicology & Environmental Safety (in press)

Among all available species, fish are a powerful model for risk-benefit assessments to study the effects of contaminants on human health. Gilthead seabream (Sparus aurata, Linnaeus 1758) and european ... [more ▼]

Among all available species, fish are a powerful model for risk-benefit assessments to study the effects of contaminants on human health. Gilthead seabream (Sparus aurata, Linnaeus 1758) and european seabass (Dicentrarchus labrax, Linnaeus 1758) are two species of great economic importance, representing very large production volumes in the Mediterranean. The objective of this study is (1) to analyze the concentrations of Trace Elements (TE) between wild and cultured seabream and seabass specimens, (2) to compare the determined concentrations with other studies, and (3) to increase the data about the potential risks to human health. Our results point to significant intra- and interspecies-specific differences between wild and cultured fish for severaltrace elements. Several strong and moderate inter-elemental correlations in fish muscle were observed through correlation analysis.In our study, the mean levels of trace elements were still below the standard safety values for fish intended for human consumption. The same results were reached for all the parameters analyzed (international legal limits, estimated weekly intake, provisional tolerable weekly intake, target hazard quotient, target cancer risk), with trace element levels in fish below those that could pose a risk to human health. Consequently, these fish can be considered safe for human consumption. A better understanding of the levels of trace elements in fish would also better inform consumers about the potential risks of exposure to contaminants. [less ▲]

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See detailLe lettere bipartite e i discorsi politici di Francesco Guicciardini nell’anno 1525
Miesse, Hélène ULiege

in Giornale Storico della Letteratura Italiana (in press)

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See detailTraduction de "Sense and Its Place in Meaning" de W.V.O. Quine
Moreau, Timothée ULiege

in Philosophie (in press)

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See detailDiscovery of a point-like source and a third spiral arm in the transition disk around the Herbig Ae star MWC 758
Reggiani, Maddalena ULiege; Christiaens, V.; Absil, Olivier ULiege et al

in Astronomy and Astrophysics (in press)

Transition disks offer the extraordinary opportunity to look for newly born planets and investigate the early stages of planet formation. In this context we observed the Herbig A5 star MWC 758 with the L ... [more ▼]

Transition disks offer the extraordinary opportunity to look for newly born planets and investigate the early stages of planet formation. In this context we observed the Herbig A5 star MWC 758 with the L band vector vortex coronagraph installed in the near-infrared camera and spectrograph NIRC2 at the Keck II telescope, with the aim of unveiling the nature of the spiral structure by constraining the presence of planetary companions in the system. Our high-contrast imaging observations show a bright (delta L=7.0+/-0.3 mag) point-like emission, south of MWC 758 at a deprojected separation of about 20 au (r=0.111+/- 0. 004 arcsec) from the central star. We also recover the two spiral arms (south-east and north-west), already imaged by previous studies in polarized light, and discover a third one to the south-west of the star. No additional companions were detected in the system down to 5 Jupiter masses beyond 0.6 arcsec from the star. We propose that the bright L band emission could be caused by the presence of an embedded and accreting protoplanet, although the possibility of it being an asymmetric disk feature cannot be excluded. The spiral structure is probably not related to the protoplanet candidate, unless on an inclined and eccentric orbit, and it could be due to one (or more) yet undetected planetary companions at the edge of or outside the spiral pattern. Future observations and additional simulations will be needed to shed light on the true nature of the point-like source and its link with the spiral arms. [less ▲]

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

in Dyes in History and Archaeology (in press)

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See detailWas there a Roman Linguistic Imperialism during the Republic and the early Principate
Rochette, Bruno ULiege

in Lingue e Linguaggio (in press)

One of the main consequences of the Roman conquest was the diffusion of the Latin language and of Roman culture throughout the conquered countries. According to many texts of the imperial period, Latin ... [more ▼]

One of the main consequences of the Roman conquest was the diffusion of the Latin language and of Roman culture throughout the conquered countries. According to many texts of the imperial period, Latin became a universal language during the Imperium Romanum. But what is the reality? Did Rome develop any linguistic policies? There is some evidence to show that Rome’s response regarding the sociolinguistic problems that arose under its rule was to be flexible and willing to adapt to the specific requirements of each situation. Under the Republic and the early Principate, there was, in fact, a great flexibility in language use by the Romans in their dealings with the Greek world. Even though Latin-Greek bilingualism was widespread among the Romans of the Republic and the early Principate, in the public context, Latin maintained a high-level role because it represented the language of Rome’s power. In spite of this flexible approach to language use, a natural competition developed between the language of the dominant and the language of the dominated. In the Occident, Latin became the only vehicle of communication, both oral and written, whereas in the Orient, one notes a paradoxical situation: the Hellenization of the Romans due to the high cultural position of the Greek language. However, this dichotomy did not produce a division of the Roman Empire into two impenetrable parts, closed to mutual linguistic and cultural influences, but rather, it generated a more complicated situation, especially in the Oriental part of the Empire. It is this situation that will be analyzed in the present paper. [less ▲]

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See detailXXL Survey XXI. The environment and clustering of X-ray AGN in the XXL-South field
Melnyk, O.; Elyiv, A.; Smolcic, V. et al

in Astronomy and Astrophysics (in press)

This work is part of a series of studies focusing on the environment and the properties of the X-ray selected active galactic nuclei (AGN) population from the XXL survey. The present survey, given its ... [more ▼]

This work is part of a series of studies focusing on the environment and the properties of the X-ray selected active galactic nuclei (AGN) population from the XXL survey. The present survey, given its large area, continuity, extensive multiwavelength coverage, and large-scale structure information, is ideal for this kind of study. Here, we focus on the XXL-South (XXL-S) field. Our main aim is to study the environment of the various types of X-ray selected AGN and investigate its possible role in AGN triggering and evolution. We studied the large-scale (>1 Mpc) environment up to redshift z=1 using the nearest neighbour distance method to compare various pairs of AGN types. We also investigated the small-scale environment (<0.4 Mpc) by calculating the local overdensities of optical galaxies. In addition, we built a catalogue of AGN concentrations with two or more members using the hierarchical clustering method and we correlated them with the X-ray galaxy clusters detected in the XXL survey. It is found that radio detected X-ray sources are more obscured than non-radio ones, though not all radio sources are obscured AGN. We did not find any significant differences in the large-scale clustering between luminous and faint X-ray AGN, or between obscured and unobscured ones, or between radio and non-radio sources. At local scales (<0.4 Mpc), AGN typically reside in overdense regions, compared to non-AGN; however, no differences were found between the various types of AGN. A majority of AGN concentrations with two or more members are found in the neighbourhood of X-ray galaxy clusters within <25-45 Mpc. Our results suggest that X-ray AGN are typically located in supercluster filaments, but they are also found in over- and underdense regions. [less ▲]

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See detailHow private are Europe’s private forests? A comparative property rights analysis
Nichiforel, L.; Keary, K.; Deuffic, P. et al

in Land Use Policy (in press)

Private forests are widespread in Europe providing a range of ecosystem services of significant value to society, and there are calls for novel policies to enhance their provision and to face the ... [more ▼]

Private forests are widespread in Europe providing a range of ecosystem services of significant value to society, and there are calls for novel policies to enhance their provision and to face the challenges of environmental changes. Such policies need to acknowledge the importance of private forests, and importantly they need to be based on a deep understanding of how property rights held by private forest owners vary across Europe. We collected and analysed data on the content of property rights based on formal legal requirements existing in 31 European jurisdictions. To allow a comparison across jurisdictions, we constructed an original Property Rights Index for Forestry encompassing five rights domains (access, withdrawal, management, exclusion and alienation). We documented substantial variation of the private forest owners’ rights, and notably to i) make decisions in operational management and the formulation of management goals, ii) withdraw timber resources from their forest, and iii) exclude others from the use of forest resources. We identified broad relations between the scope for decision making of private forest owners and jurisdictions’ former socio-political background and geographical distribution. The variation in the content of property rights has implications for the implementation of international environmental policies, and stresses the need for tailored policy instruments, when addressing European society’s rural development, the bioeconomy, climate change mitigation measures and nature protection strategies. [less ▲]

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See detailVenous Access for Paediatric Parenteral Nutrition
Kolacek, S; Puntis, J; Hojsak, I et al

in Clinical Nutrition (in press)

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See detailFirst passage time as an analysis tool in experimental wind engineering [under review]
Vanvinckenroye, Hélène ULiege; Andrianne, Thomas ULiege; Denoël, Vincent ULiege

in Journal of Wind Engineering & Industrial Aerodynamics (in press)

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See detailMusique et culture à Rome et dans l’Italie méridionale entre Renaissance et Baroque
Morales, Jorge ULiege

in Le jardin de musique (in press), X

Alfred Einstein soulignait en 1949 qu’« à Naples comme à Palerme, le baroque le plus extravagant fleurissait à l’église, à la cour et dans la musique ». En effet, la culture de la Méditerranée – ... [more ▼]

Alfred Einstein soulignait en 1949 qu’« à Naples comme à Palerme, le baroque le plus extravagant fleurissait à l’église, à la cour et dans la musique ». En effet, la culture de la Méditerranée – immémorial carrefour de nombreuses civilisations – a donné naissance à un monde musical riche et singulier dans la période qui court de la fin de la Renaissance au début du Baroque et sur lequel il reste beaucoup à découvrir. Il en est de même pour Rome : la richesse de l’activité musicale s’y présentait sous les formes les plus éclectiques. La Ville Eternelle était alors en effet la cour la plus importante de la Péninsule, foyer culturel majeur et porte de l’Italie méridionale. Nous pouvons constater un récent regain d’intérêt pour la recherche archivistique et historique qui a permis, à travers de nombreux travaux et colloques, de jeter un regard neuf sur le milieu musical et culturel romain et méditerranéen de cette époque (musique vocale profane et sacrée, musique instrumentale, théâtre, institutions musicales, etc.). Ces travaux jettent les fondements d’une recherche qui ne demande qu’à être approfondie. [less ▲]

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See detailPhytochemical studies, antioxidant activity and total phenolic content of Ferula communis L. organ extracts
Rahali, Fatma Zohra; Kefi, Sarra; Rebey, Iness Bettaieb et al

in Plant Biosystems (in press)

The present study aimed to assess antioxidant activities of three organs (flower, fruit and stem) extracts of Tunisian Ferula (F.). Various experimental models were used for the characterization of ... [more ▼]

The present study aimed to assess antioxidant activities of three organs (flower, fruit and stem) extracts of Tunisian Ferula (F.). Various experimental models were used for the characterization of antioxidant activities, in vitro and using dichlorofluorescein (DCF) induced fluorescence techniques from phorbol myristate acetate (PMA ) stimulated human myeloid cell line HL-60communis. Results showed that the antioxidant activities varied considerably with organs. Thus, flower exhibited higher DPPH• scavenging ability, reducing and chelating power than stem and fruit. Moreover antioxidant capacities using ORAC method and a cell based-assay showed that fruit and stem exhibited statistically similar antioxidant activities. Moreover, F. communis contains high amounts of flavonoids with various health benefits as antioxidant properties attributed to their antioxidant potential. Likewise, to obtain biologically relevant information, the antioxidant activities of the extracts were evaluated on cellular models implicating the antioxidant activities; this test generally showed that F. communis flower extracts have the highest antioxidant capacities correlated to the highest total phenolic content. The identification of phenolic compounds in F. communis extracts using RP-HPLC revealed that resorcinol, ferulic and syringic acids together with coumarin were the major molecules. [less ▲]

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See detailEducation and Outreach by the Antarctic Treaty Parties, Observers and Experts under the framework of the Antarctic Treaty Consultative meetings
Xavier, José C; Mateev, Dragomir; Capper, linda et al

in Polar Record (in press)

The development of formal discourse about education and outreach within the Antarctic Treaty Consultative Meetings (ATCM), and the influence of major international activities in this field, are described ... [more ▼]

The development of formal discourse about education and outreach within the Antarctic Treaty Consultative Meetings (ATCM), and the influence of major international activities in this field, are described. We reflect on the ATCM Parties’ approach to implementing the ambition of the Protocol on Environmental Protection to the Antarctic Treaty Article 6.1.a, to promote the educational value of Antarctica and its environment, and we examine the role of workshops and expert groups within the Scientific Committee on Antarctic Research (SCAR), the International Union for the Conservation of Nature (IUCN), and the Council of Managers of National Antarctic Programmes, that emerged in the 1990s, in stimulating discussion within the ATCM. These early initiatives were a prelude to the development and implementation of a large number of International Polar Year (IPY) education and outreach programmes. The establishment of an Antarctic Treaty System Intersessional Contact Group, and an on-line forum on education and outreach during the 2015 ATCM in Bulgaria, is a legacy of IPY and is the next step in fostering collaboration to engage people around the world in the importance and relevance of Antarctica to our daily lives. [less ▲]

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See detailTrade in Environmental Goods: Evidences from an Analysis Using Elasticities of Trade Costs
Sorgho, Zakaria ULiege; Tamini, Lota

in Environmental & Resource Economics (in press)

Negotiations on the liberalization of environmental goods (EGs) and services within the WTO Doha Round (mandated in November 2001) are facing specific challenges. Conflicting interests and differing ... [more ▼]

Negotiations on the liberalization of environmental goods (EGs) and services within the WTO Doha Round (mandated in November 2001) are facing specific challenges. Conflicting interests and differing perceptions of the benefits of increased trade in EGs were reflected in different approaches proposed for determining EGs. Using import data of 34 Organisation for Economic Co-operation and Development (OECD) member countries and from a sample of 167 countries, from 1995 to 2012, we discuss the trade effect of reducing barriers on EGs. We analyze the lists of EGs proposed by the Asia-Pacific Economic Cooperation and OECD using a Translog gravity model. We found that removing tariff barriers for EGs will have a modest impact because for the biggest importers and exporters, elasticities of trade costs are very low while for most trading relationships they are very high, making it difficult for exporters to maintain their markets. Overall, our results suggest that, because of their substantial effect on international trade, future negotiations on EGs should also address the issues of standards and nontariff barriers. [less ▲]

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