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See detailObservations of asymmetric turbulent stirring in inner and marginal seas using satellite imagery
Karimova, Svetlana ULg

in International Journal of Remote Sensing (2017), 38(6), 1642-1664

For the open ocean, it was already reported on the cyclonic (anticyclonic) asymmetry of appearance of eddies of a certain spatial scale. In this article, we scrutinize the ratios of mostly mesoscale ... [more ▼]

For the open ocean, it was already reported on the cyclonic (anticyclonic) asymmetry of appearance of eddies of a certain spatial scale. In this article, we scrutinize the ratios of mostly mesoscale cyclonic and anticyclonic eddies in a number of inner and marginal marine basins, namely in the Baltic, Black, North, and Western Mediterranean Seas. As research material, over 9700 eddy manifestations in the thermal infrared, visible-range, and radar satellite imagery were used. The analysis performed showed that in all the seas the typical and average values of the diameter of anticyclonic eddies were greater than those of cyclonic eddies. The main factor that defines the ratio between anticyclonic and cyclonic eddies in the basins under consideration was discovered to be the intensity of their surface currents. Thus, in the presence of a strong jet flow at the scales of about 2–4 baroclinic Rossby radii the cyclonic eddy dominance typical for smaller eddies was replaced by the anticyclonic one. If strong jet streams were missing, as that typical of the Baltic Sea, cyclonic eddies were prevailing over the entire spectrum of eddy diameters. [less ▲]

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

in Journal of Statistical Software (2017), 76(1), 1-19

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

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

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See detailEntre impulsions nationales et influences transnationales : l’état belge et la promotion des « arts industriels » au xixe siècle.
Prina, Daniela Nicolosa ULg

in Jimeno-Martinez, Javier; Serulus, Katharina (Eds.) Panorama (2017)

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See detailCHAPTER 7 NHC-Iron, Ruthenium and Osmium Complexes in Catalysis
Delaude, Lionel ULg; Demonceau, Albert ULg

in Diez-Gonzalez, Silvia (Ed.) N-Heterocyclic Carbenes: From Laboratory Curiosities to Efficient Synthetic Tools, 2nd Edition (2017)

In this chapter, the catalytic applications of organometallic species - either pre-formed or generated in situ - based on Group 8 transition metals and N-heterocyclic carbene (NHC) ligands are surveyed ... [more ▼]

In this chapter, the catalytic applications of organometallic species - either pre-formed or generated in situ - based on Group 8 transition metals and N-heterocyclic carbene (NHC) ligands are surveyed. Although the coordination chemistry of iron with NHCs was first explored in the 1970s, the use of NHC-Fe complexes in catalysis did not start until the new millennium and is still in its infancy. Significant developments reported thus far concern mainly polymerisation, cyclisation, coupling, or reduction reactions. Other important transformations mediated by NHC-Fe species have been reported in organometallic synthesis and biocatalysis. Contrastingly, the chemistry of NHC-Ru complexes has reached an unprecedented level of maturity, thanks to the relentless research efforts thrown into the development of olefin metathesis catalysts. Other carbon skeletal transformations based on NHC-Ru promoters include cyclopropanation, allylation, or cycloisomerisation reactions. Some of them were carried out in tandem with olefin metathesis. Lastly, with only a handful of reports to date concerning olefin metathesis and hydrogen transfer reactions, NHC-Os-based catalysis can hardly be considered anything else than a curiosity. [less ▲]

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See detailTroubles du comportement alimentaire et régulation émotionnelle
Englebert, Jérôme ULg

in Psychosomatique Relationnelle (2017), 7

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See detailPreparing physically educated citizens in physical education. Expectations and practices
Cloes, Marc ULg

in Retos (2017), 31

Since physical education (PE) became a compulsory school subject, its objectives have often been related to the expectations of society. Since the turn of the new millennium, this has resulted in PE being ... [more ▼]

Since physical education (PE) became a compulsory school subject, its objectives have often been related to the expectations of society. Since the turn of the new millennium, this has resulted in PE being increasingly linked to the promotion of physically active lifestyles. In this paper, we try to determine whether practitioners have the capacity to reach recent objectives for the subject or should reconsider their work on this issue. Moreover, we propose to extend the current focus on physical literacy to encompass the concept of societal transfer, underlining the need for an authentic pedagogy of PE. [less ▲]

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See detailCoude - Poignet - Main
Kaux, Jean-François ULg

Learning material (2017)

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See detailDeciphering the factors defining the pH-dependence of a commercial glycoside hydrolase family 8 enzyme
Barroca, M.; Santos, G.; Johansson, B. et al

in Enzyme and Microbial Technology (2017), 96

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See detailEstrogen receptors and estetroldependent neuroprotective actions: a pilot study
Tskitishvili, Ekaterine ULg; Pequeux, Christel ULg; Munaut, Carine ULg et al

in Journal of Endocrinology (2017), 232(1), 85-95

Estetrol (E4) has strong antioxidative, neurogenic and angiogenic effects in neural system resulting in the attenuation of neonatal hypoxic-ischemic encephalopathy. We aimed to define the role of estrogen ... [more ▼]

Estetrol (E4) has strong antioxidative, neurogenic and angiogenic effects in neural system resulting in the attenuation of neonatal hypoxic-ischemic encephalopathy. We aimed to define the role of estrogen receptors in E4-dependent actions in neuronal cell cultures and prove the promyelinating effect of E4. In vitro the antioxidative and cell survival/proliferating effects of E4 on H2O2-induced oxidative stress in primary hippocampal cell cultures were studied using different combinations of specific inhibitors for ERalpha (MPP dihydrochloride), ERbeta (PHTTP), GPR30 (G15) and palmytoilation (2-BR). LDH activity and cell survival assays were performed. In vivo the promyelinating role of different concentrations of E4 (1 mg/kg/day, 5 mg/kg/day, 10 mg/kg/day, 50 mg/kg/day) was investigated using the hypoxic-ischemic brain damage model in the 7-day-old immature rats before/after the induction of hypoxic-ischemic insult. Myelin basic protein (MBP) immunostaining was performed on brain coronal sections. Our results show that LDH activity is significantly upregulated in cell cultures where the E4's effect was completely blocked by concomitant treatment either with ERalpha and ERbeta inhibitors (MPP and PHTPP, respectively), or ERalpha and ERbeta inhibitors combined with 2-BR. Cell survival is significantly downregulated in cell cultures where the effect of E4 was blocked by ERbeta inhibitor (PHTTP) alone. The blockage of GRP30 receptor did affect neither LDH activity nor cell survival. MBP immunostaining is significantly upregulated in E4-pretreated groups at a concentration of 5 mg/kg/day and 50 mg/kg/day E4, whereas the MBP-positive area OD ratio is significantly increased in all the E4-treated groups. E4's antioxidative actions mostly depend on ERalpha and ERbeta, whereas neurogenesis and possibly promyelinating activities might be realized through ERbeta. [less ▲]

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See detailFluctuations of Attentional Networks and Default Mode Network during the Resting State Reflect Variations in Cognitive States: Evidence from a Novel Resting-state
Van Calster, Laurens ULg; D'Argembeau, Arnaud ULg; SALMON, Eric ULg et al

in Journal of Cognitive Neuroscience (2017)

Neuroimaging studies have revealed the recruitment of a range of neural networks during the resting state, which might reflect a variety of cognitive experiences and processes occurring in an individual's ... [more ▼]

Neuroimaging studies have revealed the recruitment of a range of neural networks during the resting state, which might reflect a variety of cognitive experiences and processes occurring in an individual's mind. In this study, we focused on the default mode network (DMN) and attentional networks and investigated their association with distinct mental states when participants are not performing an explicit task. To investigate the range of possible cognitive experiences more directly, this study proposes a novel method of resting-state fMRI experience sampling, informed by a phenomenological investigation of the fluctuation of mental states during the resting state. We hypothesized that DMN activity would increase as a function of internal mentation and that the activity of dorsal and ventral networks would indicate states of top–down versus bottom–up attention at rest. Results showed that dorsal attention network activity fluctuated as a function of subjective reports of attentional control, providing evidence that activity of this network reflects the perceived recruitment of controlled attentional processes during spontaneous cognition. Activity of the DMN increased when participants reported to be in a subjective state of internal mentation, but not when they reported to be in a state of perception. This study provides direct evidence for a link between fluctuations of resting-state neural activity and fluctuations in specific cognitive processes. [less ▲]

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See detailIntersections on the "Map of Art": Metaphor in Ben Okri's Dangerous Love and Wilson Harris's The Mask of the Beggar
Tunca, Daria ULg

in Collier, Gordon; Davis, Geoffrey V.; Delrez, Marc (Eds.) et al The Cross-Cultural Legacy: Critical and Creative Writings in Memory of Hena Maes-Jelinek (2017)

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See detailCould Piano key weirs be subject to nappe oscillations?
Lodomez, Maurine ULg; Pirotton, Michel ULg; Dewals, Benjamin ULg et al

in 3rd International Workshop on Labyrinth and Piano Key Weirs - PKW 2017 (2017)

Nappe oscillation may affect a variety of free overflow hydraulic structures operating at low heads such as crest gates and various types of weirs. This phenomenon produces oscillations in the thin nappe ... [more ▼]

Nappe oscillation may affect a variety of free overflow hydraulic structures operating at low heads such as crest gates and various types of weirs. This phenomenon produces oscillations in the thin nappe cascading downstream of the control structure. These oscillations can result in a high noise levels that may affect people and structures located nearby. With long linear and thin overtopping walls, piano key weirs might be subject to strong nappe oscillation risks, as a few documented cases with labyrinth weirs. However, the specific geometric features of piano key weirs, such as the outlet ramps or the limited width of the inlet apex, could perhaps prevent the development of nappe oscillation. In this paper, a prototype-scale linear weir is operated to assess the risk of nappe oscillations on a piano key weir like configuration (sidewall). In particular, the effect of the weir width and inclined apron is analyzed. The experimental results show that nappe oscillation development should not occur on piano key weir, contrary to what might be observed on a labyrinth weir with the same crest. [less ▲]

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See detailFluvial archives, a valuable record of vertical crustal deformation
Demoulin, Alain ULg; Mather, Anne; Whittaker, Alexander

in Quaternary Science Reviews (2017)

The study of drainage network response to uplift is important not only for understanding river system dynamics and associated channel properties and fluvial landforms, but also for identifying the nature ... [more ▼]

The study of drainage network response to uplift is important not only for understanding river system dynamics and associated channel properties and fluvial landforms, but also for identifying the nature of crustal deformation and its history. In recent decades, geomorphic analysis of rivers has proved powerful in elucidating the tectonic evolution of actively uplifting and eroding orogens. Here, we review the main recent developments that have improved and expanded qualitative and quantitative information about vertical tectonic motions (the effects of horizontal deformation are not addressed). Channel long profiles have received considerable attention in the literature, and we briefly introduce basic aspects of the behaviour of bedrock rivers from field and numerical modelling perspectives, before describing the various metrics that have been proposed to identify the information on crustal deformation contained within their steady-state characteristics. Then, we review the literature dealing with the transient response of rivers to tectonic perturbation, through the production of knickpoints propagating through the drainage network. Inverse modelling of river profiles for uplift in time and space is also shown to be very effective in reconstructing regional tectonic histories. Finally, we present a synthetic morphometric approach for deducing the tectonic record of fluvial landscapes. As well as the erosional imprint of tectonic forcing, sedimentary deposits, such as fluvial terrace staircases, are also considered as a classical component of tectonic geomorphology. We show that these studies have recently benefited from rapid advances in dating techniques, allowing more reliable reconstruction of incision histories and estimation of incision rates. The combination of progress in the understanding of transient river profiles and larger, more rigorous data sets of terrace ages has led to improved understanding of river erosion and the implications for terrace profile correlation, i.e., extrapolation of local data to entire profiles. Finally, planform changes in fluvial systems are considered at the channel scale in alluvial rivers and regional level in terms of drainage reorganisation. Examples are given of how numerical modelling can efficiently combine with topographic data to shed new light on the (dis)equilibrium state of drainage systems across regional drainage divides. [less ▲]

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See detailFrançois Ier et les arts du Nord (1515-1547)
Fagnart, Laure ULg; Lecocq, Isabelle

Book published by Picard (2017)

Whereas the exchanges between Francis I and Italy have attracted much attention, the King’s relations with the old Southern Netherlands, as rich and complex, have not been carefully studied. The book ... [more ▼]

Whereas the exchanges between Francis I and Italy have attracted much attention, the King’s relations with the old Southern Netherlands, as rich and complex, have not been carefully studied. The book "Francis I and Artists of the North (1515-1547)" aims to fill this gap by considering the interest of the King of France - in artists and musicians from the old Southern Netherlands and their works. [less ▲]

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See detailFrançois Ier, 'second César' et l'appartement des bains du château de Fontainebleau
Fagnart, Laure ULg

in Petey-Girard, Bruno; Polizzi, Gilles; Tran, Trung (Eds.) François Ier imaginé (2017)

En 1527, alors que François Ier entame la rénovation architecturale et décorative du château de Fontainebleau, l’assimilation du prince avec Jules César est devenu un topos du discours royal ... [more ▼]

En 1527, alors que François Ier entame la rénovation architecturale et décorative du château de Fontainebleau, l’assimilation du prince avec Jules César est devenu un topos du discours royal. Inévitablement, un tel imaginaire imprègne l’aménagement du château de Fontainebleau. On le retrouve dans la galerie François Ier mais aussi dans l'appartement des bains, un ensemble que le roi et le cercle de lettrés et d’érudits qui l’entoure imaginèrent sur le modèle des thermes de la Rome impériale. Cette contribution propose une confrontation entre la suite bellifontaine et les infrastructures antiques, mais aussi quelques installations contemporaines, et ce dans le but de préciser l’originalité des bains de François Ier. [less ▲]

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See detailPostoperative care in endoscopic sinus surgery: a critical review.
Eloy, Philippe; Andrews, Peter; POIRRIER, Anne-Lise ULg

in Current Opinion in Otolaryngology & Head & Neck Surgery (2017), 25(1), 35-42

PURPOSE OF REVIEW: Chronic rhinosinusitis with and without nasal polyps is a common disease affecting people all over the world. Functional endoscopic sinus surgery (FESS) has become the gold standard ... [more ▼]

PURPOSE OF REVIEW: Chronic rhinosinusitis with and without nasal polyps is a common disease affecting people all over the world. Functional endoscopic sinus surgery (FESS) has become the gold standard treatment for medically refractive disease. Postoperative care is recommended by international leaders as an important part of the patient's management. This article is a critical review and discussion focusing on postoperative care, which is based on expert opinion, clinical studies, randomized controlled trials and meta-analysis studies. RECENT FINDINGS: Postoperative care including nasal rinsing, topical corticosteroids, antibiotics and avoidance of nasal packing are unanimously considered to be the cornerstone of best practice following FESS. However, the effectiveness of in-office nasal debridement is still under debate. SUMMARY: There is a lack of consensus regarding the necessity of performing in-office nasal debridement and the majority of clinicians carry out their postoperative care according to experience and their own preference. This is often determined by the extent of surgery performed, the severity of the postoperative inflammation, as well as being dependent on the patient's discomfort, the time constraints associated with postoperative care and the costs associated with additional appointments. Ideally, nasal debridement should be performed by the operating surgeon under endoscopic control both gently and atraumatically. [less ▲]

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See detailPsychopathologie de l'homme en situation - deuxième édition avec préface de l'auteur
Englebert, Jérôme ULg

Book published by Hermann - 2ème éd. (2017)

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See detailEdgar Allan Poe, Eureka
Delville, Michel ULg; Bertrand, Jean-Pierre ULg

Book published by Gallimard (2017)

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See detailInstitutional pedagogy for an autonomous society: Castoriadis & Lapassade
Wustefeld, Sophie ULg

in Educational Philosophy & Theory (2017)

Detailed reference viewed: 31 (2 ULg)