Last 7 days
Bookmark and Share    
Full Text
Peer Reviewed
See detailThe role of parental anxiety sensitivity and learning experiences in children's anxiety sensitivity.
Stassart, Céline ULg; Dardenne, Benoît ULg; Etienne, Anne-Marie ULg

in British Journal of Developmental Psychology (2017)

This study evaluated the impact of the mother’s and father’s anxiety sensitivity (AS) andlearning experiences on children’s AS, and the influence of two moderators: the children’sfemininity orientation and ... [more ▼]

This study evaluated the impact of the mother’s and father’s anxiety sensitivity (AS) andlearning experiences on children’s AS, and the influence of two moderators: the children’sfemininity orientation and the children’s emotional intelligence (EI). The samplecomprised 200 non-clinical children, aged 9–13 years, and their parents (mothers andfathers). Results revealed that the effect of parental AS on children’s AS is moderated bythe children’s EI for maternal AS and by their femininity traits for paternal AS. Learningexperiences following somatic sensations influenced the children’s level of AS. Morespecifically, special attention by parents following a child’s somatic sensations (reinforce-ment and transmission of information) was associated with high AS in children. Parentalreactions of fear following a parent’s somatic sensations (modelling) seem to predicthigher scores for AS when the link is moderated by the child’s femininity orientation. Theimplications of these findings are discussed. [less ▲]

Detailed reference viewed: 19 (3 ULg)
Peer Reviewed
See detailHow does forest cover impact water flows and ecosystem services? Insights from real-life catchments in Wallonia (Belgium)
Brogna, Delphine; Vincke, Caroline; Brostaux, Yves ULg et al

in Ecological Indicators (2017), 72

While planet boundaries are being crossed and ecosystems degraded, the Ecosystem Service (ES) conceptrepresents a potential decision-making tool for improved natural resources management. The main aimof ... [more ▼]

While planet boundaries are being crossed and ecosystems degraded, the Ecosystem Service (ES) conceptrepresents a potential decision-making tool for improved natural resources management. The main aimof this paper is to assess the impact of forest cover on water related ES in Wallonia (Belgium) in termsof quantity and timing. We developed an approach based on easily accessible data, monitored in severalcountries and using straightforward statistical methods. This led us to study ES at “real-life” catchmentsscale: 22 catchments – from 30 to 250 km2– with mixed land covers were studied. We approached thewater supply and flood protection services through 5 indicators extracted from 10 hydrological years(2005–2014) discharge data series. These were computed annually and seasonally (vegetation periodfrom March to September and “non-vegetation” period the rest of the year). The water supply wasassessed through the specific volume Vs, the baseflow index BFI and the specific discharge exceeded95% of the time Q95s whereas the flood protection service was approached through the specific dis-charge exceeded 5% of the time Q05s and the flashiness index FI. Our study gives two main insights. First,statistical analyses show that forest cover negatively impact water supply when studying annual and“non-vegetation” period flows in general (Vs) but positively when studying low flows (Q95s). Regardingflood protection a slightly negative impact of forest cover on high flows (Q05s) was highlighted in the“non-vegetation” period. Results also show a negative impact of forests annually and in the vegetationperiod on the flashy behaviour of the catchment thus a positive impact on the flood protection ES. The“year” effect is overall highly significant testifying the importance of climatic factors. Rainfall is oftensignificant and can be considered as a main driver of these ES. Secondly, analyzing the quality of themodels produced and the results overall we assume that other variables characterizing the catchmentssuch as topography or soil types do play a significant role in the delivery of these ES. This questions theuse of land cover proxies in assessing and mapping of hydrological ES at a complex landscape scale. Wethus recommend further research to keep improving land cover proxies if they are used. [less ▲]

Detailed reference viewed: 59 (14 ULg)
Peer Reviewed
See detailGlobal disorders of consciousness.
Stender, Johan; Laureys, Steven ULg; Gosseries, Olivia ULg

in Velmans, Max; Schneider, Susan (Eds.) The Blackwell Companion to Consciousness (2017)

Detailed reference viewed: 56 (5 ULg)
Full Text
Peer Reviewed
See detailEcotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids
Gismondi, Eric ULg; Thomé, Jean-Pierre ULg; Urien, Nastassia et al

in Environmental Pollution (2017)

Very few ecotoxicological studies have been performed on long-term exposure under controlled conditions, hence limiting the assessment of the impact of chronic and diffuse chemical pressures on the health ... [more ▼]

Very few ecotoxicological studies have been performed on long-term exposure under controlled conditions, hence limiting the assessment of the impact of chronic and diffuse chemical pressures on the health of aquatic organisms. In this study, an ecotoxicoproteomic approach was used to assess the integrated response and possible acclimation mechanisms in Gammarus fossarum following chronic exposures to Cd, Cu or Pb, at environmentally realistic concentrations (i.e. 0.25, 1.5 and 5 µg/L respectively). After 10-week exposure, changes in protein expression were investigated in caeca of control and exposed males. Gel-free proteomic analyses allowed for the identification of 35 proteins involved in various biological functions, for which 23 were significantly deregulated by metal exposures. The protein deregulation profiles were specific to each metal, providing evidence for metal-specific action sites and responses of gammarids. Among the tested metals, Cu was the most toxic in terms of mortality, probably linked with persistent oxidative stress. Moulting and osmoregulation were the major biological functions affected by Cu in the long-term. In Pb-exposed gammarids, significant deregulations of proteins involved in immune response and cytoskeleton were observed. Reproduction appears to be strongly affected in gammarids chronically exposed to Cd or Pb. Besides, modified expressions of several proteins involved in energy transfer and metabolism highlighted important energetic reshuffling to cope with chronic metal exposures. These results support the fact that metallic pressures induce a functional and energetic cost for individuals of G. fossarum with potential repercussions on population dynamics. Furthermore, this ecotoxicoproteomic study offers promising lines of enquiry in the development of new biomarkers that could make evidence of long-term impacts of metals on the health of organisms. [less ▲]

Detailed reference viewed: 21 (7 ULg)
Full Text
Peer Reviewed
See detailMono- and bimetallic manganese-carbonyl complexes and clusters bearing imidazol(in)ium-2-dithiocarboxylate ligands
Beltran Alvarez, Tomás Francisco ULg; Zaragoza, Guillermo; Delaude, Lionel ULg

in Dalton Transactions (2017), 46

Five complexes with the generic formula fac-[MnBr(CO)3(S2C[middle dot]NHC)] were obtained by reacting [MnBr(CO)5] with a set of representative imidazol(in)ium-2-dithiocarboxylate zwitterions. These ... [more ▼]

Five complexes with the generic formula fac-[MnBr(CO)3(S2C[middle dot]NHC)] were obtained by reacting [MnBr(CO)5] with a set of representative imidazol(in)ium-2-dithiocarboxylate zwitterions. These ligands are the adducts of N-heterocyclic carbenes (NHCs) and carbon disulfide. The mononuclear Mn(i) derivatives were coupled with Na[Mn(CO)5] to afford bimetallic [Mn2(CO)6(S2C[middle dot]NHC)] clusters. Yet, the most convenient strategy to access these dinuclear Mn(0) products implied a direct carbonyl substitution from the [Mn2(CO)10] dimer. The molecular structures of three monometallic and four bimetallic compounds were elucidated by single crystal X-ray diffraction analysis. In the monometallic complexes, the NHC[middle dot]CS2 ligands exhibited a bidentate [small kappa]2-S,S[prime or minute] coordination mode with an S-C-S bite angle of about 116[degree]. In the dinuclear clusters, the CS2- unit acted as a chelate toward one manganese center and as a pseudoallylic ligand toward the other one. The S-C-S bite angle was reduced to ca. 104[degree]. Thus, the zwitterions displayed a remarkable flexibility, which also permitted a staggered arrangement of the carbonyl groups in the bimetallic systems. Examination of the [small nu, Greek, macron]CO absorption bands on IR spectroscopy helped identify the presence of fac-Mn(CO)3 or Mn2(CO)6 motifs, while the 13C NMR chemical shift of the CS2- moiety was a reliable indicator for monitoring its hapticity. Whereas the dinuclear clusters were air- and moisture-stable crystalline solids, mononuclear halido derivatives displayed only a limited stability under aerobic conditions. Both types of compounds underwent rather unselective, extensive fragmentations in the gas phase, in sharp contrast with the analogous rhenium derivatives that led to clean sequential decarbonylation processes upon collision-induced dissociation. [less ▲]

Detailed reference viewed: 34 (5 ULg)
Full Text
Peer Reviewed
See detailExploring sex differences in the adult zebra finch brain: in vivo diffusion tensor imaging and ex vivo super-resolution track density imaging
Hamaide, J.; De Groof, G.; Van Steenkiste, G. et al

in NeuroImage (2017)

Zebra finches are an excellent model to study the process of vocal learning, a complex socially-learned tool of communication that forms the basis of spoken human language. So far, structural ... [more ▼]

Zebra finches are an excellent model to study the process of vocal learning, a complex socially-learned tool of communication that forms the basis of spoken human language. So far, structural investigation of the zebra finch brain has been performed ex vivo using invasive methods such as histology. These methods are highly specific, however, they strongly interfere with performing whole-brain analyses and exclude longitudinal studies aimed at establishing causal correlations between neuroplastic events and specific behavioral performances. Therefore, the aim of the current study was to implement an in vivo Diffusion Tensor Imaging (DTI) protocol sensitive enough to detect structural sex differences in the adult zebra finch brain. Voxel-wise comparison of male and female DTI parameter maps shows clear differences in several components of the song control system (i.e. Area X surroundings, the high vocal center (HVC) and the lateral magnocellular nucleus of the anterior nidopallium (LMAN)), which corroborate previous findings and are in line with the clear behavioral difference as only males sing. Furthermore, to obtain additional insights into the 3-dimensional organization of the zebra finch brain and clarify findings obtained by the in vivo study, ex vivo DTI data of the male and female brain were acquired as well, using a recently established super-resolution reconstruction (SRR) imaging strategy. Interestingly, the SRR-DTI approach led to a marked reduction in acquisition time without interfering with the (spatial and angular) resolution and SNR which enabled to acquire a data set characterized by a 78μm isotropic resolution including 90 diffusion gradient directions within 44h of scanning time. Based on the reconstructed SRR-DTI maps, whole brain probabilistic Track Density Imaging (TDI) was performed for the purpose of super resolved track density imaging, further pushing the resolution up to 40μm isotropic. The DTI and TDI maps realized atlas-quality anatomical maps that enable a clear delineation of most components of the song control and auditory systems. In conclusion, this study paves the way for longitudinal in vivo and high-resolution ex vivo experiments aimed at disentangling [less ▲]

Detailed reference viewed: 16 (3 ULg)
Full Text
Peer Reviewed
See detailAeroservoelastic Simulations for Horizontal Axis Wind Turbines
Prasad, Chandra Shekhar ULg; Chen, Qiong Zhong; Bruls, Olivier ULg et al

in Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy (2017), 231(2), 103-117

This paper describes the development of a complete methodology for the aeroservoelastic modeling of horizontal axis wind turbines at the conceptual design stage. The methodology is based on the ... [more ▼]

This paper describes the development of a complete methodology for the aeroservoelastic modeling of horizontal axis wind turbines at the conceptual design stage. The methodology is based on the implementation of unsteady aerodynamic modeling, advanced description of the control system and nonlinear finite element calculations in the SWT wind turbine design package. The aerodynamic modeling is carried out by means of fast techniques, such as the Blade Element Method and the unsteady Vortex Lattice Method, including a free wake model. The complete model also includes a description of a doubly fed induction generator and its control system for variable speed operation. The SWT software features a non-linear finite element solver with multi-body dynamics capability. The full methodology is used to perform complete aeroservoelastic simulations of a realistic 2MW wind turbine model. The interaction between the three components of the approach is carefully analyzed and presented here. [less ▲]

Detailed reference viewed: 59 (18 ULg)
Full Text
Peer Reviewed
See detailThe role of mesenchymal stem cells in the treatment of ulcerative colitis and Crohn's disease
GREGOIRE, Céline ULg; Louis, Edouard ULg; BRIQUET, Alexandra ULg et al

in The Biology and Therapeutic Application of Mesenchymal Cells (2017)

Detailed reference viewed: 141 (69 ULg)
Full Text
Peer Reviewed
See detailAssessment of the entering stock, migration dynamics and fish pass fidelity of european eel in the belgian meuse river
Nzau Matondo, Billy ULg; Benitez, Jean-Philippe ULg; Dierckx, Arnaud ULg et al

in River Research & Applications (2017), 33

Migration dynamics of incoming eels in Belgium via Lixhe in the Meuse River were investigated using two fish passes with different configurations— net traps and automatic detection stations—as tools to ... [more ▼]

Migration dynamics of incoming eels in Belgium via Lixhe in the Meuse River were investigated using two fish passes with different configurations— net traps and automatic detection stations—as tools to distinguish resident and migrating eels. From April to September 2013, 435 eels (P50 length, 403 mm; range, 196–836 mm) were caught (daily maxima catch, 90 eels per day), 90% between 13 June and 1 August (50 days) and P50 on 19 July. Eels migrated mostly at 19–26 °C (P50, 24.4 °C), river discharge 65–314m3 s 1 (P50, 84m3 s 1), during the dark at 00:00–05:00 h and during both the waxing and waning phases of moonlight. From 396 eels tagged and released 0.3 km downstream of the Lixhe dam, 6.8% of them were recaptured, and 37.4% were detected. Migration flux was estimated at 7184 eels (0.863 t) using the markrecapture method and decreased to 1156 eels (0.139 t) using automatic transponder detection. Most eels probably migrated through a sluice located downstream of Lixhe to reach the upper Meuse via the Albert Canal. Eels moved almost independently to the configuration of the fish passes and their location, but most eels displayed fidelity to the fish pass where they were captured. Migrant eels showed a wide range of size and life stages, with a higher proportion of eels (80%) belonging to the yellow eel stage. A lower proportion of eels (6%) had a larger size and presented an advanced continental silvering process corresponding to the migrating stage before their transatlantic migration. Copyright © 2016 John Wiley & Sons, Ltd. [less ▲]

Detailed reference viewed: 52 (19 ULg)
Full Text
See detailExtracting oscillating components from nonstationary time series: A wavelet-induced method
Deliège, Adrien ULg

E-print/Working paper (2017)

This paper consists in the description and application of a new method named Wavelet-Induced Mode Extraction (WIME) in the context of time-frequency analysis. WIME aims to extract the oscillating ... [more ▼]

This paper consists in the description and application of a new method named Wavelet-Induced Mode Extraction (WIME) in the context of time-frequency analysis. WIME aims to extract the oscillating components that build amplitude modulated-frequency modulated signals. The essence of this technique relies on the successive extractions of the dominant ridges of wavelet-based timefrequency representations of the signal under consideration. Our tests on simulated examples indicate strong decomposition and reconstruction skills, trouble-free handling of crossing trajectories in the time-frequency plane, sharp performances in frequency detection in the case of mode-mixing problems and a natural tolerance to noise. These results are compared with those obtained with the Empirical Mode Decomposition. We also show that WIME still gives meaningful results with real-life data, namely the Oceanic Niño Index. [less ▲]

Detailed reference viewed: 36 (17 ULg)
Full Text
Peer Reviewed
See detailMeta-Analysis of Genome-Wide Association Studies for Abdominal Aortic Aneurysm Identifies Four New Disease-Specific Risk Loci
Jones, Gregory; Tromp, Gerard; Kuivaniemi, Helena et al

in Circulation Research (2017)

Detailed reference viewed: 20 (0 ULg)
Full Text
Peer Reviewed
See detailA novel SMAD3 mutation caused multiple aneurysms in a patient without osteoarthritis symptoms
Courtois, Audrey ULg; Coppieters, Wouter ULg; BOURS, Vincent ULg et al

in European Journal of Medical Genetics (2017)

Detailed reference viewed: 38 (4 ULg)
Full Text
Peer Reviewed
See detailExact algorithms for the Equitable Traveling Salesman Problem
Kinable, Joris; Smeulders, Bart ULg; Delcour, Eline et al

in European Journal of Operational Research (2017)

Given a weighted graph G = (V,E), the Equitable Traveling Salesman Problem (ETSP) asks for two perfect matchings in G such that (1) the two matchings together form a Hamiltonian cycle in G and (2) the ... [more ▼]

Given a weighted graph G = (V,E), the Equitable Traveling Salesman Problem (ETSP) asks for two perfect matchings in G such that (1) the two matchings together form a Hamiltonian cycle in G and (2) the absolute difference in costs between the two matchings is minimized. The problem is shown to be NP-Hard, even when the graph G is complete. We present two integer programming models to solve the ETSP problem and compare the strength of these formulations. One model is solved through branch-and-cut, whereas the other model is solved through a branch-and-price framework. A simple local search heuristic is also implemented. We conduct computational experiments on different types of instances, often derived from the TSPLib. It turns out that the behavior of the different approaches varies with the type of instances. For small and medium sized instances, branch-and-bound and branch-and-price produce comparable results. However, for larger instances branch-and- bound outperforms branch-and-price. [less ▲]

Detailed reference viewed: 11 (2 ULg)
Full Text
Peer Reviewed
See detailDéficits de la conscience autonoétique et de la mémoire autobiographique: résultats d'une intervention cognitive dans la schizophrénie.
Boulanger, Marie ULg; Neumann, Aurore; Blairy, Sylvie ULg

in Pratiques Psychologiques (2017)

The study evaluates the effects of a cognitive intervention called Self-Awareness Therapy (SAT) on abilities of mental time travel in deficit in schizophrenia. Among whole schizophrenia participants ... [more ▼]

The study evaluates the effects of a cognitive intervention called Self-Awareness Therapy (SAT) on abilities of mental time travel in deficit in schizophrenia. Among whole schizophrenia participants, seven participated in SAT, four took part in the Integrative Program Therapy (IPT) and six followed a treatment as usual. Before and after interventions, participants were asked to complete TEMPau for autonoetic awareness and autobiographical memory such as TeMA, for autobiographical memory and projection into future events. Intragroups and individual statistical analyses were conducted. The participants of SAT intervention reported more specific past TEMPau and future specific events on TeMA after therapy. Results support that, in schizophrenia, the retrieving of past specific memories and projection into future specific events could be improved under certain conditions only. [less ▲]

Detailed reference viewed: 40 (7 ULg)
Peer Reviewed
See detailL'affaire Jean-Claude Romand. Entre vérité et mensonge, réalité et fiction
Thirion, Nicolas ULg; Pasteger, David ULg; Flores-Lonjou, Magalie

in Miniato, Lionel; Jouve, Emeline (Eds.) Chronique judiciaire et fictionnalisation du procès. Discours, récits et représentations (2017)

Detailed reference viewed: 39 (3 ULg)
Full Text
Peer Reviewed
See detailMRI follow-up is unnecessary in patients with macroprolactinomas and long-term normal prolactin levels on dopamine agonist treatment.
Eroukhmanoff, J.; Tejedor, I.; Potorac, Iulia ULg et al

in European Journal of Endocrinology (2017), 176(3), 323-328

OBJECTIVE: Both antitumor and antisecretory efficacies of dopamine agonists (DA) make them the first-line treatment of macroprolactinomas. However, there is no guideline for MRI follow-up once prolactin ... [more ▼]

OBJECTIVE: Both antitumor and antisecretory efficacies of dopamine agonists (DA) make them the first-line treatment of macroprolactinomas. However, there is no guideline for MRI follow-up once prolactin is controlled. The aim of our study was to determine whether a regular MRI follow-up was necessary in patients with long-term normal prolactin levels under DA. PATIENTS AND METHODS: We conducted a retrospective multicenter study (Marseille, Paris La Pitie Salpetriere and Nancy, France; Liege, Belgium) including patients with macroprolactinomas (largest diameter: >10 mm and baseline prolactin level: >100 ng/mL) treated by dopamine agonists, and regularly followed (pituitary MRI and prolactin levels) during at least 48 months once normal prolactin level was obtained. RESULTS: In total, 115 patients were included (63 men and 52 women; mean age at diagnosis: 36.3 years). Mean baseline prolactin level was 2224 +/- 6839 ng/mL. No significant increase of tumor volume was observed during the follow-up. Of the 21 patients (18%) who presented asymptomatic hemorrhagic changes of the macroprolactinoma on MRI, 2 had a tumor increase (2 and 7 mm in the largest size). Both were treated by cabergoline (1 mg/week) with normal prolactin levels obtained for 6 and 24 months. For both patients, no further growth was observed on MRI during follow-up at the same dose of cabergoline. CONCLUSION: No significant increase of tumor size was observed in our patients with controlled prolactin levels on DA. MRI follow-up thus appears unnecessary in patients with biologically controlled macroprolactinomas. [less ▲]

Detailed reference viewed: 31 (2 ULg)
Full Text
Peer Reviewed
See detailL’indemnité de procédure, l’appel de la partie civile et l’acquittement du prévenu : la croix et la bannière ?
Michiels, Olivier ULg; Falque, Géraldine ULg

in Revue de Droit Pénal et de Criminologie (2017), 2017/1

En ce qu’il ne permet pas au juge répressif d’accorder au prévenu acquitté et au civilement responsable une indemnité de procédure d’appel à charge de la partie civile succombante qui, en l’absence de ... [more ▼]

En ce qu’il ne permet pas au juge répressif d’accorder au prévenu acquitté et au civilement responsable une indemnité de procédure d’appel à charge de la partie civile succombante qui, en l’absence de tout recours du ministère public, a interjeté appel d’un jugement d’acquittement statuant sur une action intentée par le ministère public, l’article 162bis, alinéa 2, du Code d’instruction criminelle viole les articles 10 et 11 de la Constitution. [less ▲]

Detailed reference viewed: 35 (4 ULg)
Full Text
Peer Reviewed
See detailQue peut la doctrine en droit des sociétés (et ailleurs)?
Thirion, Nicolas ULg

in Revue Pratique des Sociétés - Tijdschrift voor Rechtspersoon en Vennootschap (2017), 1

A quelle condition la doctrine peut-elle relever d'une démarche proprement scientifique? Telle est la question qu'abord cet éditorial.

Detailed reference viewed: 46 (7 ULg)