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See detailWorking memory for serial order and numerical cognition: What kind of association?
Majerus, Steve ULiege; Attout, Lucie ULiege

in Henik, Avishai; Fias, Wim (Eds.) Heterogeneity of Function in Numerical Cognition (in press)

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See detailHow flexible is the use of egocentric versus allocentric frame of reference in the Williams syndrome population?
Heiz, Julie; Majerus, Steve ULiege; Barisnikov, Koviljka

in Archives of Clinical Neuropsychology (in press)

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See detailFrom SEM images to elastic responses: a stochastic multiscale analysis of UD fiber reinforced composites
Wu, Ling ULiege; Chung, Chi Nghia; Major, Zoltan et al

in Composite Structures (in press)

In this work, the elastic response of unidirectional fiber (UD) reinforced composites is studied in a stochastic multiscale way. First, the micro-structure of UD carbon fiber reinforced composites is ... [more ▼]

In this work, the elastic response of unidirectional fiber (UD) reinforced composites is studied in a stochastic multiscale way. First, the micro-structure of UD carbon fiber reinforced composites is statistically studied based on SEM images of its cross-section and an algorithm to generate numerical micro-structures with an equivalent random distribution of fibers is developed. In particular, based on the images spatial analysis, the empirical statistical descriptors are considered as dependent variables and represented using the copula framework, allowing generating micro-structure realizations used as Stochastic Volume Elements (SVEs). Second, a stochastic scale transition is conducted through the homogenization of SVEs. With a view to the use of the resulting meso-scale random field in structural stochastic analyzes, the homogenization is performed in two steps in order to respect the statistical content from the micro-meter-long SVEs to the millimeter-long structural finite elements. To this end, the computational homogenization is applied in a hierarchy model: i) Micro-structure generator produces Small SVEs (SSVEs) which are homogenized; ii) Big SVEs (BSVEs) are constructed from the SSVEs. Finally, it is shown on simple illustrative examples that the scatter of the (homogenized) stress distribution in a composite ply can be simulated by means of the developed methodology. [less ▲]

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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 detailAn H-band Vector Vortex Coronagraph for the Subaru Coronagraphic Extreme-Adaptive Optics System
Kühn, Jonas; Serabyn, Eugene; Lozi, Julien et al

in Publications of the Astronomical Society of the Pacific (in press)

The vector vortex is a coronagraphic imaging mode of the recently commissioned Subaru Coronagraphic Extreme-Adaptive Optics (SCExAO) platform on the 8-m Subaru Telescope. This multi-purpose high-contrast ... [more ▼]

The vector vortex is a coronagraphic imaging mode of the recently commissioned Subaru Coronagraphic Extreme-Adaptive Optics (SCExAO) platform on the 8-m Subaru Telescope. This multi-purpose high-contrast visible and near-infrared (R- to K-band) instrument is not only intended to serve as a VLT-class "planet-imager" instrument in the Northern hemisphere, but also to operate as a technology demonstration testbed ahead of the ELTs-era, with a particular emphasis on small inner-working angle (IWA) coronagraphic capabilities. The given priority to small-IWA imaging led to the early design choice to incorporate focal-plane phase-mask coronagraphs. In this context, a test H-band vector vortex liquid crystal polymer waveplate was provided to SCExAO, to allow a one-to-one comparison of different small-IWA techniques on the same telescope instrument, before considering further steps. Here we present a detailed overview of the vector vortex coronagraph, from its installation and performances on the SCExAO optical bench, to the on-sky results in the extreme AO regime, as of late 2016/early 2017. To this purpose, we also provide a few recent on-sky imaging examples, notably high-contrast ADI detection of the planetary-mass companion \kappa Andromedae b, with a signal-to-noise ratio above 100 reached in less than 10 mn exposure time. [less ▲]

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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 detailA comparison of serial order short-term memory effects across verbal and musical domains
Gorin, Simon ULiege; Mengal, Pierre; Majerus, Steve ULiege

in Memory & Cognition (in press)

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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 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 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 detail« Modello, regola, ordine ». Parcours normatifs dans l’Italie du Cinquecento
Miesse, Hélène ULiege; Valenti, Gianluca ULiege

Book published by Presses universitaires de Rennes (in press)

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See detailTowards a global unified model of Europa's tenuous atmosphere
Plainaki; Cassidy; Shematovich et al

in Space science reviews (in press)

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See detailPhenotyping of Brassica napus L. plantlets affected during in vitro growth by the presence of epoxiconazole
Durenne, Bastien ULiege; Blondel, Alodie; Ducat, Nathalie et al

in Acta Horticulturae (in press)

Epoxiconazole like others triazole fungicides are known to be persistent in the soil. Several studies using foliar application experiments demonstrated the effect of its triazole metabolite as plant ... [more ▼]

Epoxiconazole like others triazole fungicides are known to be persistent in the soil. Several studies using foliar application experiments demonstrated the effect of its triazole metabolite as plant growth regulator through the anti-gibberellin activity. And notably, the reduction of Brassica napus L. growth can be attributed to the inhibition of gibberellin biosynthesis at the stage of conversion of ent-kaurene to ent-kaurenoic acid. We describe here an in vitro experiment studying the relationship between epoxiconazole in culture medium (0 mg L⁻¹, 0.120 mg L⁻¹ and 0.200 mg L⁻¹) and the phenotyping (root and shoot growth) of three varieties of winter rapeseeds (Brassica napus L. var. Catalina, var. ES Astrid and var. Toccata). Plantlets fungicide content was quantified using the QuEChERS extraction method following by an automated UHPLC-MS/MS analysis. Results showed that the shoots and roots growth of Brassica napus L. plantlets was significantly inhibited by epoxiconazole at 0.120 mg L⁻¹ independently of the variety. The concentration of 0.200 mg L⁻¹ leaded to necrosis and anthocyanosis symptoms and can be considered as lethal for in vitro growing explants. The huge epoxiconazole absorption by rapeseed plantlets clearly showed a dose-dependent relationship and was closely similar for the three varieties. [less ▲]

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See detailCyanobacteria inhabiting biological soil crusts of a polar desert: Sør Rondane Mountains, Antarctica
Pushkareva, Ekaterina; Pessi, Igor S; Namsaraev, Zorigto et al

in Systematic and Applied Microbiology (in press)

Molecular and morphological methods were applied to study cyanobacterial community composition in biological soil crusts (BSCs) from four areas (two nunataks and two ridges) in the Sør Rondane Mountains ... [more ▼]

Molecular and morphological methods were applied to study cyanobacterial community composition in biological soil crusts (BSCs) from four areas (two nunataks and two ridges) in the Sør Rondane Mountains, Antarctica. The sampling sites serve as control areas for open top chambers (OTCs) which were placed in 2010 at the time of sample collection and will be compared with BSC samples taken from the OTCs in future. Cyanobacterial cell biovolume was estimated using epifluorescence microscopy, which revealed the dominance of filamentous cyanobacteria in all studied sites except the Utsteinen ridge, where unicellular cyanobacteria were the most abundant. Cyanobacterial diversity was studied by a combination of molecular fingerprinting methods based on the 16S rRNA gene (denaturing gradient gel electrophoresis (DGGE) and 454 pyrosequencing) using cyanobacteria specific primers. The number of DGGE sequences obtained per site was variable and, therefore, a high-throughput method was later employed to improve the diversity coverage. Consistent with previous surveys in Antarctica, both methods showed that filamentous cyanobacteria such as Leptolyngbya sp., Phormidium sp. and Microcoleus sp. were dominant in the studied sites. In addition, the studied localities differed in substrate type, climatic conditions and soil parameters, which likely resulted in differences in cyanobacterial community composition. Furthermore, the BSC growing on gneiss pebbles had lower cyanobacterial abundances than BSCs associated to granitic substrates. [less ▲]

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See detailDel personaje transficcional al mito: crossover y coalescencia de Celestina en Terra Nostra
Francois, Jeromine ULiege

in Francois, Jeromine; Ceballos Viro, Alvaro (Eds.) El personaje transficcional en el mundo hispánico (in press)

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See detailLa Musique silencieuse de José Muñoz et Carlos Sampayo
Dejasse, Erwin ULiege

Book published by Presses universitaires François Rabelais (in press)

Cette étude met en lumière dans l'oeuvre de José Muñoz et Carlos Sampayo les mécanismes de déconstruction des normes issues de la bande dessinée de genre fondée sur le principe de l’illusion référentielle ... [more ▼]

Cette étude met en lumière dans l'oeuvre de José Muñoz et Carlos Sampayo les mécanismes de déconstruction des normes issues de la bande dessinée de genre fondée sur le principe de l’illusion référentielle. Cette entreprise de dislocation des standards graphiques et narratifs vise à substituer à la lecture traditionnelle fondée sur la consommation du récit, une lecture émotionnelle. [less ▲]

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See detailFrancesco Guicciardini, une vie de lettres
Miesse, Hélène ULiege

Book published by Classiques Garnier (in press)

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