References of "Paper published in a journal"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailÉVOLUTION DE LA TENEUR EN EAU LE LONG D’UNE TOPOSEQUENCE FORESTIERE ARGILO-LIMONEUSE
Deraedt, Deborah ULiege; Colinet, Gilles ULiege; Degré, Aurore ULiege

in Milieux Poreux et Transferts Hydriques (in press)

For the hydrological modeling of forested watersheds, the understanding of the forest hydrodynamic is essential. This study focusses on the hydrology of a Belgian forested plot with high stoniness and ... [more ▼]

For the hydrological modeling of forested watersheds, the understanding of the forest hydrodynamic is essential. This study focusses on the hydrology of a Belgian forested plot with high stoniness and steep slope. The soil water content is monitored at several positions on the toposequence and at different depth. During rain events, peak in soil water content are observed in different depth depending on the position along the toposequence. [less ▲]

Detailed reference viewed: 179 (67 ULiège)
Full Text
Peer Reviewed
See detailsynthéticité et intuition en mathématiques contemporaines : Kant au-delà de Kant
Mazurkiewicz, Stany ULiege

in Eikasia. Revista de Filosofia. (in press)

Ce texte entend réévaluer l'idée de "pure synthèse intellectuelle" que l'on trouve chez Kant. Celle-ci cadre avec la pratique mathématique et métamathématique postérieure à Kant. Elle permet de dépasser l ... [more ▼]

Ce texte entend réévaluer l'idée de "pure synthèse intellectuelle" que l'on trouve chez Kant. Celle-ci cadre avec la pratique mathématique et métamathématique postérieure à Kant. Elle permet de dépasser l'alternative entre l'intuitionnisme développé dans la Critique de la raison pure et la fondation de la mathématique sur une logique formelle analytique. Je montre que cette idée convient à Bolzano et à Dedekind, dont je soutiens que les projets sont irréductibles à du logicisme et qui sont dès lors bien plus "kantiens" qu'il n'y paraît. [less ▲]

Detailed reference viewed: 55 (16 ULiège)
Full Text
Peer Reviewed
See detailTwo-loop-induced neutrino masses: A model-independent perspective
Aristizabal Sierra, Diego ULiege

in PoS Proceedings of Science (in press)

We disucuss Majorana neutrino mass generation mechanisms at the two-loop order. After briefly reviewing the systematic classification of one-loop realizations, we then focus on a general two-loop ... [more ▼]

We disucuss Majorana neutrino mass generation mechanisms at the two-loop order. After briefly reviewing the systematic classification of one-loop realizations, we then focus on a general two-loop classification scheme which provides a model-independent catalog for neutrino mass models at the two-loop order [less ▲]

Detailed reference viewed: 22 (2 ULiège)
Full Text
Peer Reviewed
See detailPaper Formats of the Mamluk Period: The Contribution of Mamluk Chancery Paper
Bauden, Frédéric ULiege

in Journal of Islamic Manuscripts (in press)

Detailed reference viewed: 146 (7 ULiège)
Full Text
Peer Reviewed
See detailClinical and neuroimaging improvements after apomorphine treatment in a patient with chronic disorders of consciousness following brain hemorrhage
Sanz, Leandro ULiege; Lejeune, Nicolas; Blandiaux, Séverine ULiege et al

in Brain Injury (in press)

Background: There are few available therapeutic options to promote recovery among patients with disorders of consciousness (DOC). Among pharmacological treatments, apomorphine, a dopamine agonist, has ... [more ▼]

Background: There are few available therapeutic options to promote recovery among patients with disorders of consciousness (DOC). Among pharmacological treatments, apomorphine, a dopamine agonist, has exhibited promising behavioral effects in traumatic brain injury. Its efficacy among patients with non-traumatic brain injury has never been documented and its action on brain activity remains unknown. We report the case of a patient with DOC following intracranial hemorrhage, who was treated with apomorphine in a prospective open-label study. Methods/design: A 47-year-old woman with chronic DOC (minimally conscious state; MCS) following spontaneous rupture of a left carotidal aneurysm (132 days since onset), was treated with apomorphine for 30 days. The drug was administered via subcutaneous infusions 12 hours per day, with escalating doses up to 6 mg/h. The patient was monitored 30 days before initiation of therapy, during treatment and 30 days after withdrawal, using the Coma Recovery Scale – Revised (CRS-R). High-density electroencephalography (hdEEG) and fluorodeoxyglucose positron emission tomography (FDG-PET) were acquired before and after treatment. Outcome measures included CRS-R diagnosis, FDG-PET standardized uptake values, a multivariate classifier integrating 68 individual hdEEG markers and hdEEG functional connectivity using debiased weighted phase lag index. Results: Before treatment, CRS-R scores were compatible with a diagnosis of unresponsive wakefulness syndrome (UWS) in 8/9 evaluations, and with a MCS- only once. During treatment, the patient was diagnosed as UWS in 2/8 evaluations, MCS- in 5/8 evaluations and MCS+ once, characterized by the presence of reproducible response to command. After treatment withdrawal, she was diagnosed UWS once and MCS- in 4/5 evaluations. Compared to 54 healthy controls, FDG-PET whole brain metabolism revealed a 59% metabolic drop before treatment and 51% after treatment, with increases in right temporal, parietal and frontal cortical areas. The multivariate classifier using resting-state hdEEG data was in favor of a UWS before treatment, while it indicated a MCS after treatment. Most of the individual markers increased after treatment, including alpha and beta spectral power, spectral entropy, Kolmogorov complexity and permutation entropy. Functional connectivity analyses also indicated an increase in network centrality predominant in the alpha frequency band after treatment compared to before treatment. Discussion: After treatment with apomorphine, this patient showed improvements both at the clinical and neuroimaging levels. While signs of consciousness were only observed once at baseline, most of the assessments performed during and after treatment led to a diagnosis of MCS. Notably, a reproducible response to command was observed once during treatment, leading to a change of diagnosis. Brain activity measures all increased after treatment compared to before treatment. These multimodal improvements suggest that apomorphine may be efficient to promote the recovery of non-traumatic DOC patients, and that its action can be measured through different changes in brain imaging markers. Clinical trial identifiers: EudraCT 2018-003144-23; Clinicaltrials.gov NCT03623828 [less ▲]

Detailed reference viewed: 51 (14 ULiège)
Full Text
Peer Reviewed
See detailHow to give something as a present to the tomb owner in Old Kingdom daily-life scenes
Motte, Aurore ULiege

in Egyptian & Egyptological Documents, Archives, Libraries (in press), V

The aim of this paper is to describe the variety of ways by which the common workers speak to or offer something to the owner of a private tomb in the Old Kingdom daily-life scenes. Moreover, it retraces ... [more ▼]

The aim of this paper is to describe the variety of ways by which the common workers speak to or offer something to the owner of a private tomb in the Old Kingdom daily-life scenes. Moreover, it retraces the development of dedicatory formulas in Reden und Rufe from the 5th Dynasty to the end of the 6th Dynasty with a short overview of the subsequent speech captions. [less ▲]

Detailed reference viewed: 21 (5 ULiège)
Full Text
Peer Reviewed
See detailThe role of conservators: an international survey on conservation within contemporary art collections
D'Haenens, Manon ULiege

in CeROArt: Conservation, Exposition, Restauration d'Objets d'Art (in press)

Detailed reference viewed: 52 (6 ULiège)
Full Text
Peer Reviewed
See detailNeuro-functional correlates of the protective effects of exercise against cocaine sensitization and dopamine D2 receptors density: a [18F]Fallypride microPET study.
Becker, Guillaume ULiege; Lespine, Louis-Ferdinand ULiege; Serrano Navacerrada, Maria Elisa ULiege et al

in Molecular Imaging and Biology (in press)

Preclinical studies suggest that free access to a running wheel can attenuate behavioural effects of addictive drugs such as psychomotor sensitization to cocaine in rodents. This phenomenon has an ... [more ▼]

Preclinical studies suggest that free access to a running wheel can attenuate behavioural effects of addictive drugs such as psychomotor sensitization to cocaine in rodents. This phenomenon has an integral role in the process of drug addiction in craving and relapse (Steketee and Kalivas, 2011). Free wheel-running was recently shown to be efficacious at preventing the initiation or the long-term expression of psychomotor sensitization to cocaine in mice or rats (Diaz et al., 2013; Geuzaine and Tirelli, 2014). In the present study, we investigated the neuro-functional correlates of the protection against psychomotor sensitization to cocaine afforded by free wheel-running on dopaminergic neurotransmission, using microPET imaging with [18F]Fallypride, a Dopamine 2 receptor (D2R) antagonist. Sixty-four 28-day-old female C57BL/6J mice were randomly assigned to one of the two housing conditions, defined by the presence or the absence of a running wheel in the cage over a 6-week pre-testing period. Since mice from the two types of housing received either saline (controls) or cocaine (8 mg/kg, i.p.) during testing (9 once-daily sessions to establish sensitization plus 1 single session to test its expression), a basic 2x2 randomized blocks design was generated (2-way ANOVA and planned comparisons; n=10). Experimentation lasted 85 days, with a 42-day period of pre-testing and a 3-week interval preceding the test for long-term expression of sensitization (LTES). All mice underwent a microPET (Focus 120, Siemens) the day after the LTES. The microPET protocol consisted of a 60 min. dynamic acquisition after the injection of 10 MBq of [18F]Fallypride in the tail vein. Wheel-running strongly and significantly attenuated LTES (interaction) to cocaine (Cohen’s d=1.63; t(21)=3.75, p<.001) and cocaine-treated mice exhibited a clear-cut and significant increase (main effect) of the [18F]Fallypride BP (d=0.88, t(31)=2.45, p =.02). Wheel-running induced an overall moderate-sized decrease (main effect) of the [18F]Fallypride BP, but without achieving statistical significance (d=0.64, t(31)=1.79, p =.08). These findings suggest that LTES is associated with an increase of the [18F]Fallypride BP in the mouse striatum, probably reflecting an increase in postsynaptic D2R density in this region. Also, the protecting effect of free running on psychomotor sensitization goes together with a decrease in D2R density in the striatum of exercised mice. We intend to complement the present study with an identical experiment to reach a total number of 80 mice (n=20). This will confer to our study a sufficient power (80%) for the main effect of wheel-running exercise on [18F]Fallypride BP to be detected at an alpha-level of 5%. Finally, autoradiography studies, performed on the same mice with [18F]Fallypride, will strengthen our in vivo results. [less ▲]

Detailed reference viewed: 113 (61 ULiège)
Full Text
Peer Reviewed
See detailAge effect on the hierarchical structure of paranoia in the general population: the role of rumination and thought suppression.
Della Libera, Clara ULiege; Laroi, Frank ULiege; Raffard, Stéphan et al

in Schizophrenia Bulletin (in press)

Detailed reference viewed: 28 (7 ULiège)
Full Text
Peer Reviewed
See detailDisentangling false perceptions elicited by white noise in people with auditory hallucinations: The role of sound frequencies and expectations.
Laloyaux, Julien ULiege; Specht, K; Hugdahl, K et al

in Schizophrenia Bulletin (in press)

Detailed reference viewed: 15 (1 ULiège)
Full Text
Peer Reviewed
See detailARTHuS: Adaptive Real-Time Human Segmentation in Sports through Online Distillation
Cioppa, Anthony ULiege; Deliège, Adrien ULiege; Istasse, Maxime et al

in IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) Proceedings (in press)

Semantic segmentation can be regarded as a useful tool for global scene understanding in many areas, including sports, but has inherent difficulties, such as the need for pixel-wise annotated training ... [more ▼]

Semantic segmentation can be regarded as a useful tool for global scene understanding in many areas, including sports, but has inherent difficulties, such as the need for pixel-wise annotated training data and the absence of well-performing real-time universal algorithms. To alleviate these issues, we sacrifice universality by developing a general method, named ARTHuS, that produces adaptive real-time match-specific networks for human segmentation in sports videos, without requiring any manual annotation. This is done by an online knowledge distillation process, in which a fast student network is trained to mimic the output of an existing slow but effective universal teacher network, while being periodically updated to adjust to the latest play conditions. As a result, ARTHuS allows to build highly effective real-time human segmentation networks that evolve through the match and that sometimes outperform their teacher. The usefulness of producing adaptive match-specific networks and their excellent performances are demonstrated quantitatively and qualitatively for soccer and basketball matches. [less ▲]

Detailed reference viewed: 122 (40 ULiège)
Full Text
Peer Reviewed
See detailMid-Air: A multi-modal dataset for extremely low altitude drone flights
Fonder, Michaël ULiege; Van Droogenbroeck, Marc ULiege

in IEEE Conference on Computer Vision and Pattern Recognition Workshops Proceedings (2019, June)

Flying a drone in unstructured environments with varying conditions is challenging. To help producing better algorithms, we present Mid-Air, a multi-purpose synthetic dataset for low altitude drone ... [more ▼]

Flying a drone in unstructured environments with varying conditions is challenging. To help producing better algorithms, we present Mid-Air, a multi-purpose synthetic dataset for low altitude drone flights in unstructured environments. It contains synchronized data of multiple sensors for a total of 54 trajectories and more than 420k video frames simulated in various climate conditions. In this work, we motivate design choices, explain how the data was simulated, and present the content of the dataset. Finally, a benchmark for positioning and a benchmark for image generation tasks show how Mid-Air can be used to set up a standard evaluation method for assessing computer vision algorithms in terms of robustness and generalization. We illustrate this by providing a baseline for depth estimation and by comparing it with results obtained on an existing dataset. The Mid-Air is publicly downloadable, with additional details on the data format and organization, at http://midair.ulg.ac.be [less ▲]

Detailed reference viewed: 41 (15 ULiège)
Full Text
Peer Reviewed
See detailAssociation of SMA neonatal screening with other screening tests
BOEMER, François ULiege

in Neuromuscular Disorders (2019, May 11)

Detailed reference viewed: 13 (2 ULiège)
Full Text
Peer Reviewed
See detailIn-house techniques for SMA screening test: validation
BOEMER, François ULiege

in Neuromuscular Disorders (2019, May 10)

Detailed reference viewed: 15 (3 ULiège)
Full Text
Peer Reviewed
See detailPresentation : Blockchain: A novel approach for the consensus algorithm using Condorcet Voting procedure
Vangulick, David ULiege

in IEEE Catalog Number: CFP19S63-ART (2019, April)

Presentation support of the full paper submitted and accepted for the conference IEEE DAPPCON

Detailed reference viewed: 120 (6 ULiège)
Full Text
Peer Reviewed
See detailSyndecan-4 is increased in osteoarthritic knee, but nor ip or shoulder, articular hypertrophic chondrocytes
Sanchez, Christelle ULiege; Lambert, Cécile ULiege; Dubuc, Jean-Emile et al

in Osteoarthritis and Cartilage (2019, April), 27(Suppl 1), 159-160

Detailed reference viewed: 12 (2 ULiège)
Full Text
Peer Reviewed
See detailDiagnostic accuracy of a CRS-R modified score in patients with disorders of consciousness.
Annen, Jitka ULiege; Filippini, Maria Maddalena ULiege; Bonin, Estelle ULiege et al

in Brain Injury (2019, March 16)

Introduction The Coma Recovery Scale-Revised (CRS-R) is the gold standard diagnostic tool for assessing patients with disorders of consciousness (DOC) after severe acquired brain injury (Giacino, Kalmar ... [more ▼]

Introduction The Coma Recovery Scale-Revised (CRS-R) is the gold standard diagnostic tool for assessing patients with disorders of consciousness (DOC) after severe acquired brain injury (Giacino, Kalmar and Whyte, 2004; Seel et al., 2010). Differential diagnosis of DOC includes the unresponsive wakefulness syndrome (UWS;(Laureys et al., 2010)), characterized by the recovery of eye-opening but no behavioral evidence of self or environmental awareness, and the minimally conscious state (MCS; (Giacino et al., 2002)) defined by clearly discernible but inconsistent behavioral signs of conscious awareness. The CRS-R assesses reflexes and cognitively mediated behavior in six domains, namely auditory (4 items), visual (5 items), motor (6 items), oromotor (3 items), communication (2 items) and arousal (3 items). Items in every subscale are hierarchically ordered (i.e. reflexive to cognitively-mediated behaviors; higher level behaviors correspond to higher level of neurologic functioning and ability to demonstrate lower-level behaviors or disappearance of pathological behaviors as sign of recovery) and can be used to infer the patient’s level of consciousness (La Porta et al., 2013; Gerrard, Zafonte and Giacino, 2014). Several studies on DOC investigating markers of consciousness, recovery and treatment used the CRS-R total score (i.e. addition of the highest scores reached for each subscale) as regressor in neuroimaging analyses (Bruno et al., 2012; Thibaut et al., 2012; Margetis et al., 2014; Bagnato et al., 2015). However, ignoring the hierarchy of the subscales in the CRS-R total score reduces the sensitivity for the diagnosis of MCS patients (i.e., 100% specificity for UWS but false negative diagnostic error of 22%, with a cut-off CRS-R total score of 10 (Bodien et al., 2016)). In addition, the ordinal nature of the CRS-R total score make it limited to use with parametric statistical tests (e.g., requiring normal distribution). A solution to this problem has been proposed by Sattin and colleagues (2015) who computed a CRS-R modified score (CRS-R MS1), by considering reflexes and cognitively mediated behaviors separately, reliably distinguishing between UWS and MCS patients. These authors also argue that the interpretation of the total CRS-R scores is limited due to “the underlying assumption that if a patient is able to show higher-level behaviors, he/she is also able to show lower-level responses”. Sattin et al. (2015) propose to account for the number of presented responses in every subscale (i.e., every items in a subscale should be assessed and scored). One major drawback to this approach is that according to the CRS-R guidelines, the assessor should start assessing the highest item and move to the next subscale once an item is scored, in line with the hierarchical organization of the scale. This means that, if the CRS-R is performed according to the guidelines (for which the CRS-R has been validated), the CRS-R modified score cannot be calculated. Even if assessing all items might be valid, it is unlikely to be done in many clinical and research settings as it would increase assessment time and fatigue the patient. We here propose to adapt the CRS-R MS1 by considering only the highest score reached on every subscale, respecting the CRS-R guidelines. Methods One-hundred twenty-four patients admitted to the University Hospital of Liège were assessed multiple times with the CRS-R, at least once including the assessment of all items. Patients for whom the CRS-R assessment including all items provided the same diagnosis as the patient’s final diagnosis were selected. The study was approved by the ethics committee of the University Hospital of Liège and the legal guardians of patients gave written informed consent for participation in the study, in accordance with the Declaration of Helsinki. The CRS-R total score and two CRS-R MS were calculated for every patient. The CRS-R MS combines scores for reflexes and cognitive behaviors of every CRS-R subscale which can be used to obtain the CSR-R MS from a transposition matrix. The CRS-R MS1 was calculated as previously described (Sattin et al., 2015), and the CRS-R MS2 only used the highest score in every subscale (i.e., assuming that lower items were successful). Statistics were performed in R (R Core team, 2012). We assessed group differences in age (two sample t-test), time since injury (two sample t-test) and etiology (χ2 test). Receiver Operating Characteristic were calculated to obtain the sensitivity and specificity at several classification thresholds (package pROC (Robin et al., 2011)). We calculated the correlation between the CRSR MS1 and CRSR MS2 using Pearson correlation, and both scores with the CRS-R total score using Spearman correlation. Finally, we used a Kolmogorov-Smirnoff test to evaluate whether CRSR MS1 and CRSR MS2 come from different distributions (i.e., if one approach provides additional information over the other). Results Eighty-five MCS patients (26 females; mean age 40.4 (SD±17.4) years old; 43 traumatic; mean time since injury 2.7 (SD±4.0) years) and 39 UWS patients (14 females; mean age 50.6 (SD±16.5) years old; 29 traumatic; mean time since injury 1.2 (SD±1.8) years) were included in the study. MCS patients were older (t(77.6)-3.15, p<0.002 95%CI[-16.7, -3.7]), were in a more chronic stage (t(121.9)=2.9, p = 0.005, 95%CI[974,427]), and suffered more often from a traumatic brain injury (χ2=6.8, p = 0.01) than UWS patients. The ROC analysis for both MS showed an AUC of 1 (cut-off:8.315, 100% specificity and sensitivity). The ROC analysis for the CRS-R total score showed an AUC of 0.94 (cut-off:9, sensitivity = 100%, specificity = 67%). A correlation was found between the CRSR total score and both the CRSR MS1 (r = 0.94, p < 0.0001, figure 1A) and CRSR MS2 (r = 0.96, p < 0.0001, figure 1B). The two CRS-R MS correlated (r = 0.96, p = 0.0001, figure 1C). CRSR MS1 and CRSR MS2 were drawn from the same distribution (D(124)= 0.13, p = 0.25). Discussion CRSR MS2 correlated strongly with the CRSR MS1, and perfectly discriminated UWS from MCS patients. As for accurate diagnosis the CRS-R should be repeated (preferably five times (Wannez et al., 2018)) short assessments are preferred, and possibly also reduce effects of fatigue. Second, the CRSR MS2 can be calculated with CRS-R assessments performed according to the CRS-R guidelines, facilitating its use in clinical environments, and in research settings where CRSR MS2 can be used pro- and retrospectively for research protocols. Furthermore, the results indicate that the two modified scores share the same distribution. This suggests that assessing all CRS-R items as proposed previously does not significantly contribute to the stratification of patients. The CRSR MS2 code is available via: Github A remaining limitation of the proposed score is that it does not allow to distinguish MCS minus (i.e. showing language independent signs of awareness, like visual pursuit) from MCS plus (i.e. showing language dependent signs of awareness) patients, or emergence from MCS. However, a clear consensus about the diagnostic criteria is needed before an updated modified score can be provided. In conclusion, the current analyses show that the calculation of the CRS-R modified score using the highest item in every subscale is valid for clinical diagnosis, and provides perspective for its use for research. Figure Figure 1. Correlation between the CRS-R total score and the CRS-R MS1 (1A), CRSR MS2 (1B), and between the two modified CRS-R scores (1C). MCS plus patients are here characterized by command following, intelligible verbalization and/or intentional communication. Acknowledgements This project has received funding from the University and University Hospital of Liege, the Belgian National Funds for Scientific Research (FRS-FNRS), the European Union’s Horizon 2020 Framework Programme for Research and Innovation under the Specific Grant Agreement No. 785907 (Human Brain Project SGA2) the Luminous project (EU-H2020-fetopenga686764), the Center-TBI project (FP7-HEALTH- 602150), the Public Utility Foundation ‘Université Européenne du Travail’, “Fondazione Europea di Ricerca Biomedica”, the Bial Foundation, the Mind Science Foundation and the European Commission, the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 778234, European Space Agency (ESA) and the Belgian Federal Science Policy Office (BELSPO) for their support in the framework of the PRODEX Programme. CC is a post-doctoral Marie Sklodowska-Curie fellow (H2020-MSCA-IF-2016-ADOC-752686), and SL is research director at FRS-FNRS. We are highly grateful to the members of the Liège Coma Science Group for their assistance in clinical evaluations, and we thank all the patients and their families and the Neurology department of the University hospital of Liège. [less ▲]

Detailed reference viewed: 49 (11 ULiège)
Full Text
Peer Reviewed
See detailNew concepts in liver regeneration mechanisms in human severe alcoholic steatohepatitis.
Lejeune, A; Starkel, P; Louvet, A et al

in Acta Gastro-Enterologica Belgica (2019, March), 82(1), 12

Detailed reference viewed: 14 (1 ULiège)
Full Text
Peer Reviewed
See detailThe condition of orally fed patients in ICU: an observational study.
MATHY, Xavier ULiege; ROUGIER, Loïc ULiege; FADEUR, Marjorie ULiege et al

in Critical Care (2019, March), 23(Suppl 2), 267

Detailed reference viewed: 18 (2 ULiège)
Full Text
Peer Reviewed
See detailThrough patients and professionals representations on patient partnership of care: the exploration of an ambiguous consensus – Preliminary results
Voz, Bernard ULiege; Ortiz Halabi, Iness ULiege; Pétré, Benoît ULiege et al

in Archives of Public Health (2019, February 28)

Background: Patient engagement in health care system has been regarded as a lever for the general improvement of the health system. Many models illustrate and participate in this change. One of them ... [more ▼]

Background: Patient engagement in health care system has been regarded as a lever for the general improvement of the health system. Many models illustrate and participate in this change. One of them proposes a patient-partnership, challenging the whole health system, from direct care to policy making. In a context where the Belgian health system is put into question, the relevance of patient participation has to be challenged. This exploratory study is aimed at exploring the representations, experiences and expectations towards these models. Through this contribution, we will highlight the understanding of a partnership in health for patients and professionals. <br /> <br />Methods: As part of a larger Interreg research project, a qualitative approach has permitted an in-depth comprehension of patients and hospital professionals representation toward the partnership model. A purposive sample of thirty patients, suffering from cancer, diabetes, cardiovascular or pulmonary diseases, has been met in six focus groups. Thirty professionals, nurses and specialist physician in charge of chronic patients, have taken part in semi-structured interviews. Thematic analysis was used to organise the data. <br /> <br />Results: Patients and professionals share common basis for partnership, perceiving it as positive and, in some way, already happening. Both patients and professionals mention, among other things, the importance of common language, listening skills and team work. Beyond these discourses, some divergences appear when considering what partnership could mean in practice. As an example, information sharing is a key debate for the actors, who don’t agree about what should be shared, how or with whom. Furthermore, if patients and professionals easily identify what a partnership should be in direct care, they struggle to conceive one at other levels. <br /> <br />Conclusions: This analysis urges the health actors to face their divergence of opinions about interdisciplinarity, knowledge, and the sharing of information. These results constitute an initial trigger for the development of grounded interventions. [less ▲]

Detailed reference viewed: 31 (7 ULiège)
Full Text
Peer Reviewed
See detailSurgical Simulation in Temporal Bone Surgical Radio-Anatomy Learning
ROGISTER, Florence ULiege; SALMON, Caroline ULiege; GHUYSEN, Alexandre ULiege et al

in B-ENT (2019, February 23)

Introduction and Aim: We aimed to evaluate high-fidelity virtual reality simulation in learning of temporal bone radio-anatomy during ENT residency. Methods: Fifteen ENT residents completed a radiological ... [more ▼]

Introduction and Aim: We aimed to evaluate high-fidelity virtual reality simulation in learning of temporal bone radio-anatomy during ENT residency. Methods: Fifteen ENT residents completed a radiological temporal bone anatomical testing before and after five training sessions on the VOXEL-MAN Tempo® surgical simulator. Secondary investigation: residents also completed a personal subjective assessment after these training session and residents’ technical skills were assessed on cadaveric temporal bones. Results: Primary outcome: Residents significantly improved their performance on the temporal bone radiological anatomy test after completing virtual training on the simulator. Secondary outcomes: The personal assessment survey indicated that 100% of the residents would integrate this virtual tool within the learning methods. No significant correlation was found between virtual simulator performances and surgical performances on cadaveric model, but a significant correlation was shown between the anatomical testing result and the performances on cadaveric model. Conclusions: This study suggested that a high-fidelity virtual reality simulator, the VOXEL-MAN Tempo® device, improved teaching of temporal bone anatomy and specifically increased trainees’ practical knowledge regarding radiological anatomy of temporal bone. [less ▲]

Detailed reference viewed: 23 (3 ULiège)
Full Text
Peer Reviewed
See detailTraduction et analyse par des experts d'une brochure consacrée à l'auto-gestion après un « Whiplash »
Demoulin, Christophe ULiege; Taret, R; Otero, J et al

in Kinesitherapie, La Revue (2019, February), 19(206), 105-106

Detailed reference viewed: 19 (2 ULiège)
Full Text
Peer Reviewed
See detailTest de dissociation thoraco-lombaire pour les patients lombalgiques chroniques : une évaluation par analyse vidéo est-elle envisageable ?
Demoulin, Christophe ULiege; Matheve, T; MICHEL, Laurie ULiege et al

in Kinesitherapie, La Revue (2019, February), 19(206), 44-45

Detailed reference viewed: 26 (4 ULiège)
Full Text
Peer Reviewed
See detailDyskinésie scapulaire et kinésiotape : analyse électromyographique
Tooth, Camille ULiege; Schwartz, Cédric ULiege; Colman, David ULiege et al

in Kinesitherapie, La Revue (2019, February), 206

Detailed reference viewed: 52 (9 ULiège)
Full Text
Peer Reviewed
See detailTraduction en français et intérêt de la grille ECHOWS pour évaluer l'anamnèse en physiothérapie
Barde-Cabusson, Y; Demoulin, Christophe ULiege; Bornheim, Stephen ULiege et al

in Kinesitherapie, La Revue (2019, February), 19(206), 60-61

Detailed reference viewed: 21 (2 ULiège)
Full Text
Peer Reviewed
See detailUn outil d'apprentissage ludique pour améliorer le raisonnement clinique en kinésithérapie neuromusculo- squelettique : « Le jeu des 8 familles d'hypothèses »
Hage, Renaud; Fourré, Antoine; Demoulin, Christophe ULiege et al

in Kinesitherapie, La Revue (2019, February), 19(206), 45-46

Detailed reference viewed: 54 (1 ULiège)
Full Text
Peer Reviewed
See detailMarket analysis of recycled sands and aggregates in North-West Europe: drivers and barriers
Delvoie, Simon ULiege; Zhao, Zengfeng ULiege; Michel, Frédéric ULiege et al

in Conference Series Earth and Environmental Science (2019, February)

Construction and demolition wastes (C&DW) are estimated at one third of total wastes generated in the European Union (EU) and represent the main flux in volume. Inert materials (e.g. concrete, bricks ... [more ▼]

Construction and demolition wastes (C&DW) are estimated at one third of total wastes generated in the European Union (EU) and represent the main flux in volume. Inert materials (e.g. concrete, bricks, tiles and ceramics) constitute the largest fraction of construction and demolition wastes. These wastes can be recovered as secondary raw materials after a recycling process resulting in the production of recycled sands and aggregates. The market for recycled sands and aggregates is however complex and sensitive. It can be affected by many parameters and may be very variable from one region to another, even in the same country. A quantitative analysis of some market variables is carried out in five NW European countries: Belgium, France, Germany, Luxembourg and the Netherlands. For achieving this analysis, attention is paid to the following data/parameters: generation of inert construction and demolition wastes, production of recycled sands and aggregates and production of natural sands and aggregates. Since the market of recycled products is also governed by transportation costs (mainly transported by road), the study has also compiled data on the density of recycling plants for construction and demolition wastes, the density of pits and quarries extracting natural materials, the density of inert landfills and taxes applied for C&DW landfilling. National/regional legislation and requirements are also included in the analysis. Based on the compiled data and objective reasons, the market of recycled sands and aggregates is more developed and more suitable in the Netherlands and in Flanders (North of Belgium) than in the other investigated countries/regions. [less ▲]

Detailed reference viewed: 51 (17 ULiège)
Full Text
Peer Reviewed
See detailIntérêt des microcourants pour prévenir/limiter la survenue de DOMS après un effort excentrique
Demoulin, Christophe ULiege; Hoyaux, A; Bornheim, Stephen ULiege et al

in Kinesitherapie, La Revue (2019, February), 19(206), 75-76

Detailed reference viewed: 41 (5 ULiège)
Full Text
Peer Reviewed
See detailEvaluation de la mobilité lombaire: Schober or not Schober?
Jacquemin, Denis ULiege; Demoulin, Christophe ULiege; Botton, Anne-Sophie et al

in Kinesitherapie, La Revue (2019, February), 19(206), 82-83

The aim of this study was to verify the validity of the Modified Schober test by checking the real positioning of its benchmarks regarding the spinal skeleton. Study performed on a sample of 42 patients ... [more ▼]

The aim of this study was to verify the validity of the Modified Schober test by checking the real positioning of its benchmarks regarding the spinal skeleton. Study performed on a sample of 42 patients with low back pain via CT or MRI. In 64.3% of cases, the upper marker was below L1, at an average distance of 2.15 cm. Our study therefore questions the validity of the modified Schober test to identify the upper end of the lumbar spine. [less ▲]

Detailed reference viewed: 40 (3 ULiège)
Full Text
Peer Reviewed
See detailLa tDCS en phase aiguë d’un AVC : un outil rééducatif
Bornheim, Stephen ULiege; Croisier, Jean-Louis ULiege; Elkebir, Kamel Eddine ULiege et al

in Kinesitherapie, La Revue (2019, February), 19(206), 83

Detailed reference viewed: 31 (5 ULiège)
Full Text
Peer Reviewed
See detailEntraînement du contrôle moteur lombopelvien chez le joueur de tennis élite
Grosdent, Stéphanie ULiege; Demoulin, Christophe ULiege; Tomasella, Marco ULiege et al

in Kinesitherapie, La Revue (2019, February), 19(206), 43-44

Detailed reference viewed: 61 (5 ULiège)
Full Text
Peer Reviewed
See detailConceptual Design of a Variable Stiffness Mechanism in a Humanoid Ankle Using Parallel Redundant Actuation
Stoeffler, C.; Kumar, S.; Peters, H. et al

in IEEE-RAS International Conference on Humanoid Robots (2019, January), 2018-November

Future robots will rely more than today on high precision, better energy efficiency and safe handling (e.g. human-machine interaction). An inevitable step in the development of new robots is therefore the ... [more ▼]

Future robots will rely more than today on high precision, better energy efficiency and safe handling (e.g. human-machine interaction). An inevitable step in the development of new robots is therefore the improvement of existing mechanisms, since better sensors and algorithms do not satisfy the demands alone. During the last three decades, Parallel Redundant Mechanisms (PRM) came more into the focus of research, as they are advantageous in terms of singularity avoidance, fast movements and energy efficiency. Subsequently, yet another technology - the Variable Impedance Actuator (VIA) - emerged which proposes to change its inherent stiffness allowing an adaptation to its environment and to handle for example dynamic movements or shock absorptions. This work aims to create a new mechanism where a stiffness and position control for 2 degrees of freedom (DOF) is achieved by 3 actuators with flexible elements. It is thus a combination of the PRM and VIA, while taking advantage of both technologies but asking for a more sophisticated mathematical description. Practical implementation is intended for a humanoid ankle mechanism. Kinetostatic and stiffness models are derived and incorporated into the simulation of the mechanism. The simulations show that improvements in terms of singularity removal and dexterity are achieved. Furthermore, the adaptation of human like gait performances is presented. © 2018 IEEE. [less ▲]

Detailed reference viewed: 21 (2 ULiège)
Full Text
Peer Reviewed
See detailENT Surgical Training in 2018: National Cross-sectional Study
ROGISTER, Florence ULiege; CAMBY, Séverine ULiege; LEFEBVRE, Philippe ULiege et al

in B-ENT (2019)

Introduction and Aim: This study aimed to draw up an inventory of the current practical training from the surgical trainees’ point of view, identifying strengths and gaps of current training and potential ... [more ▼]

Introduction and Aim: This study aimed to draw up an inventory of the current practical training from the surgical trainees’ point of view, identifying strengths and gaps of current training and potential tools to be developed. Material and Methods: We conducted a broad national survey among Belgian population within the North-part and South-part universities of the country. The questions included self-assessment, training objectives, training quality and training tools. Results: 35.7% of trainees evaluated their level of overall surgical competence at 3/5 compared to an ideal mastery. More than a half (55%) of trainees did not know the training objectives and 73% did not know the basic surgical procedures that a qualified ENT surgeon should be able to perform. The main mode of learning (41%) was the observation of a senior and repetition under supervision (companionship). The results showed mainly logistical and economic drawbacks, on which it seems possible to act using learning methods based on the implementation of organized training sessions, associated with different learning tools such as surgical and procedural simulation. Some of these are already available in our country but remain difficult to access or to develop. Conclusion: This study revealed a real demand and motivation from trainees and could serve as a basis to sketch a teaching scheme improving skills and confidence of future surgeons. Additional studies are needed to identify the most effective ways for implementing this type of teaching within the constraints of the surgical curriculum and teaching hospitals resources. [less ▲]

Detailed reference viewed: 29 (4 ULiège)
Full Text
Peer Reviewed
See detailCurrent practice and variability in micronutrient monitoring and administration: results of the Vita-Trace survey
Vankrunkelsven, W; Gunst, J; Amrein, K et al

in Critical Care (2019), 23(Suppl 2), 275

Detailed reference viewed: 20 (2 ULiège)
Full Text
Peer Reviewed
See detailImpact of a Shift in Treatment Funding on a Multidisciplinary Sleep Clinic: a Cohort Study
VERMEIRE, Pierre ULiege; FANIELLE, Julien ULiege; BRUWIER, Annick ULiege et al

in B-ENT (2019)

Introduction and Aim: A shift in Obstructive Sleep Apnea (OSA) funding was implemented in Belgium on January 1, 2017. Funding was allowed for moderate to severe OSA and the rules shifted for treatments ... [more ▼]

Introduction and Aim: A shift in Obstructive Sleep Apnea (OSA) funding was implemented in Belgium on January 1, 2017. Funding was allowed for moderate to severe OSA and the rules shifted for treatments delivery and monitoring by authorised medical opinion. Multidisciplinary Sleep Clinics have long existed, bringing together sleep specialists, dentists, orthodontists and surgeons. We aimed to assess whether a shift in treatment funding was associated with a change in the multidisciplinary sleep practice. Material and Methods: Sample consisted of all patients discussed in the sleep multidisciplinary team meetings of the University Hospital of Liege from January 2016 to December 2018. Interrupted times series, Mann-Whitney U tests and descriptive statistics were produced. Results: There were no differences in patients age, male sex preponderance, body mass index, clinical presentation and level of obstruction. Baseline OSA severity was significantly lower (mean apnea-hypopnea index and mean oxygen desaturation index lowered respectively with p = 0.0189 and p = 0.0466) after the funding rules changed. Oral appliance and ENT surgery were more often offered after the shift in funding. Conclusion: Sleep multidisciplinary team meeting changed patient selection and management after the implementation of the new funding rules for OSA. The shift in funding often resulted in treatment options change, reaching more people and offering more options. [less ▲]

Detailed reference viewed: 32 (5 ULiège)
Full Text
Peer Reviewed
See detailEffects of Rapid Maxillary Expansion on Respiratory Events in Children: Are we doing no Harm?
REMACLE, Sarah ULiege; HENDRIX, Charlotte ULiege; BRUWIER, Annick ULiege et al

in B-ENT (2019)

Introduction and Aim: Rapid maxillary expansion devices are used in children with upper maxillary transverse deficit and cross-bite. They were consistently shown to improve obstructive apnoea syndrome in ... [more ▼]

Introduction and Aim: Rapid maxillary expansion devices are used in children with upper maxillary transverse deficit and cross-bite. They were consistently shown to improve obstructive apnoea syndrome in children. However, the impact of the device in place into the child’s mouth has never been studied. The aim of our study was to quantify the effect of the device on respiratory events while in place. Secondary endpoints were to evaluate its impact on quality of life and on respiratory events after treatment. Material and Methods: 12 consecutive children with maxillary cross-bite were prospectively included in this cohort study. Respiratory events were recorded before, during and after rapid maxillary expansion using a validated type 3 polygraphy including jaw movements. Subjective outcomes were evaluated using Obstructive Sleep Apnea (OSA)-18 quality-of-life questionnaire (OSA-18). Maxillary width and 16/26 distance were evaluated before and after rapid maxillary expansion on anterior radiography. Results: Estimated apnea hypopnea index increased from 2.67/h (±1.31/h) to 2.9/h (±2.4/h) with the device in place. Respiratory effort characterized by jaw motion > 0.4mm during the respiratory cycle increased from 7.58% (±10.01%) to 16.05% (±15.53%). Sleep-related breathing impairment was confirmed by parents’ questionnaires. Conclusion: While rapid maxillary expansion is an effective treatment for obstructive apnea syndrome in children, our study suggested a transient worsening of sleep breathing while the device is in place. It may be related to an incorrect tongue position and/or to the crowding of the device into the mouth. [less ▲]

Detailed reference viewed: 41 (6 ULiège)
Full Text
Peer Reviewed
See detailInvestigating the Impact of Urban Layout Geometry on Urban Flooding
Mustafa, Ahmed Mohamed El Saeid ULiege; Zhang, Xiao Wei; Aliaga, Daniel G. et al

in Proceedings of GEOProcessing 2019 (2019)

In this paper, we use a procedural generation system to design urban layouts that passively reduce water depth during urban floods. The tool enables designing cities that passively lower flood depth ... [more ▼]

In this paper, we use a procedural generation system to design urban layouts that passively reduce water depth during urban floods. The tool enables designing cities that passively lower flood depth everywhere or in chosen key areas. Our approach integrates a porosity-based hydraulic model and a parameterized urban generation system with an optimization engine so as to find the least cost modification to an initial urban layout. In order to investigate the relationship between urban layout design parameters and flood inundation depth, correlation coefficient method is used. This paper concludes that the most influential urban layout parameters are average road length and the mean parcel area. Keywords-inverse procedural modeling; urban layout design; porosity-based hydraulic model; Pearson correlation; urban flooding. [less ▲]

Detailed reference viewed: 21 (3 ULiège)
Full Text
Peer Reviewed
See detailAutomatic design of flood-resilient urban layouts
Dewals, Benjamin ULiege; Mustafa, Ahmed Mohamed El Saeid ULiege; Bruwier, Martin ULiege et al

in Geophysical Research Abstracts (2019)

Urban planning is central to flood risk prevention. Flood-sensitive urban planning pursues two goals: reducing flood exposure and vulnerability [1]; but also addressing the influence of urban ... [more ▼]

Urban planning is central to flood risk prevention. Flood-sensitive urban planning pursues two goals: reducing flood exposure and vulnerability [1]; but also addressing the influence of urban characteristics on flood flow severity (flow depths and velocities) [2]. Focusing on the latter, we present here a unique software which automatically optimizes the geometry of urban layouts to enhance flood resilience [3]. The optimized parameters describe the arrangement of the road network, the blocks, the parcels, and the buildings. The proposed approach is particularly innovative since, so far, such automatic urban design tools were developed only for totally different objectives (e.g. optimizing sun exposure or distance to parks); but not in the context of flood risk management. Our automatic urban design system consists of three components: (i) a procedural urban model, (ii) a surrogate for a hydraulic model and (iii) an optimization engine. • Starting from a set of input parameters pi (typical road length, width, curvature …) the procedural urban model generates urban layouts which mimic fairly realistically real-world urban patterns [3]. • To achieve interactive feedback (i.e. getting the results within a few seconds), the system uses a neural network (NN) to approximate the relationship between urban layout and flood flow characteristics. The NN was trained using a relatively fast 2D porosity-based hydraulic model [4], which in turn was calibrated against a detailed shallow-water model [2]. • A Markov Chain Monte Carlo optimization is used to adjust iteratively the procedural model parameters pi so as to yield the desired urban layout. The system was tested for optimizing the layout of an urban district of 1 km by 1 km subject to river flooding. The system runs about one minute to find the optimal urban layout. The system tends to improve the flow conveyance through the urban area by increasing the voids in-between the buildings (e.g., increase road width) and by promoting a more “fragmented” urban pattern (e.g., decrease road length). The optimization reduces the flood water depths in the district by up to 20 to 25%. Several real-world examples showcase the operationality of the system for improving flood resilience through flood-sensitive urban design [3]. In practice, such an interactive digital tool can valuably assist urban planners and architects to assess the implications of various design decisions on flooding and end up with improved flood-sensitive urban layouts. The approach should be further developed to accommodate more diverse flooding scenarios (e.g. pluvial floods, coastal floods, etc.). References [1] Mustafa, A. et al. (2018). Effects of spatial planning on future flood risks in urban environments. J. Environ. Manage. 225, 193–204. [2] Bruwier, M. et al. (2018). Influence of urban pattern on inundation flow in floodplains of lowland rivers. Sci. Total Environ. 622-623, 446–458. [3] Mustafa, A. et al. (2019). Procedural Generation of Flood-Sensitive Urban Layouts. Environ Plan B Urban Anal City Sci. In press. [4] Bruwier, M. et al. (2017). Shallow-water models with anisotropic porosity and merging for flood modelling on Cartesian grids. J. Hydrol. 554, C, 693–709. [less ▲]

Detailed reference viewed: 51 (8 ULiège)
Full Text
See detailFirst results from the KinAero MAXDOAS instrument
Pinardi, Gaia; Alexis, Merlaud; Martina, Friedrich et al

in Geophysical Research Abstracts (2019), Vol. 21(EGU2019-15792-1, 2019), 1

As part of an ongoing collaboration with the University of Kinshasa (RDC), we have recently developed a compact low-cost MAXDOAS instrument (KinAero) in view of deploying it at Kinshasa for long term ... [more ▼]

As part of an ongoing collaboration with the University of Kinshasa (RDC), we have recently developed a compact low-cost MAXDOAS instrument (KinAero) in view of deploying it at Kinshasa for long term monitoring of atmospheric pollutants such as NO2 and HCHO. We present the KinAero system, which consists in a compact grating spectrometer from the Avantes company coupled by optical fiber to an elevation scanning device operating in one fixed azimuthal direction. The spectral range covers the wavelengths from 290-550 nm with a resolution of 0.7 nm FWHM. We show characterization results of KinAero from the lab (detector linearity, signal-to-noise, pointing accuracy,...) and assess the overall quality of the NO2 and O4 slant column measurements based on comparisons with the BIRA-IASB NDACC-certified MAXDOAS instrument in Uccle. Between September and December 2018, KinAero was installed on the ICOS observation tower in Vielsalm (50.31◦N, 6◦E, 445 m.a.s.l), in a forest area. These measurements were performed as part of the BelAIR-Silva campaign, which provided a good opportunity to test the instrument in the field for a period of several months. The instrument was found to be stable during the full duration of the campaign. Using retrieval tools developed as part of the ESA FRM4DOAS project, we derived time-series of NO2 and HCHO column and profile measurements, which are applied to comparisons with the TROPOMI/S5P satellite instrument. [less ▲]

Detailed reference viewed: 16 (2 ULiège)
Full Text
Peer Reviewed
See detailRecurrence in multidimensional words
Charlier, Emilie ULiege; Puzynina, Svetlana; Vandomme, Elise ULiege

in Lecture Notes in Computer Science (2019), 11417

In this paper we study various modifications of the notion of uniform recurrence in multidimensional infinite words. A d-dimensional infinite word is said to be uniformly recurrent if for each prefix ... [more ▼]

In this paper we study various modifications of the notion of uniform recurrence in multidimensional infinite words. A d-dimensional infinite word is said to be uniformly recurrent if for each prefix, there exists a fixed size such that each block of this size contains the prefix. We introduce and study a new notion of uniform recurrence of multidimensional infinite words: for each rational slope, each rectangular prefix must occur along this slope with bounded gaps. Such words are called uniformly recurrent along all directions. We provide several constructions of multidimensional infinite words satisfying this condition, and more generally, a series of three conditions on recurrence. We study general properties of these new notions and in particular we study the strong uniform recurrence of fixed points of square morphisms. [less ▲]

Detailed reference viewed: 37 (10 ULiège)
Full Text
Peer Reviewed
See detailKinsbourne syndrome as complication of a Mycoplasma pneumoniae infection
ADOUANE, Linda ULiege; Hoyoux, Marie ULiege; FRERE, Julie ULiege et al

in Belgian Journal of Paediatrics (2019), 21

Few cases of Kinsbourne syndrome secondary to Mycoplasma pneumoniae infection are described in present literature. Here, we present the rare case of a young boy who spontaneously demonstrated a favorable ... [more ▼]

Few cases of Kinsbourne syndrome secondary to Mycoplasma pneumoniae infection are described in present literature. Here, we present the rare case of a young boy who spontaneously demonstrated a favorable evolution without immunomodulatory treatment. [less ▲]

Detailed reference viewed: 25 (7 ULiège)
Full Text
Peer Reviewed
See detailIntérêt des inhibiteurs SGLT-2 dans le diabète de type 1
PHILIPS, Jean-Christophe ULiege; PAQUOT, Nicolas ULiege; SCHEEN, André ULiege

in Diabetes and Metabolism (2019)

Detailed reference viewed: 15 (1 ULiège)
Full Text
Peer Reviewed
See detailIntérêt d'un traitement local dans la neuropathie diabétique douloureuse
PHILIPS, Jean-Christophe ULiege

in Diabetes and Metabolism Journal (2019)

NA

Detailed reference viewed: 22 (1 ULiège)
Full Text
Peer Reviewed
See detailRecherche de facteurs prédictifs de recourir à l’insulinothérapie dans le diabète gestationnel
PHILIPS, Jean-Christophe ULiege; RADERMECKER, Régis ULiege; Rodari, Arthur et al

in Diabetes and Metabolism (2019)

Detailed reference viewed: 22 (2 ULiège)
Full Text
Peer Reviewed
See detailMixture model in high-order statistics for peak factor estimation on low-rise building
Rigo, François ULiege; Andrianne, Thomas ULiege; Denoël, Vincent ULiege

in Proceedings of the XV Conference of the Italian Association for Wind Engineering (2018, December 10)

To design reliable structures, extreme pressures and peak factors are required. In many applications of Wind Engineering, their statistical analysis has to be performed taking into account the non ... [more ▼]

To design reliable structures, extreme pressures and peak factors are required. In many applications of Wind Engineering, their statistical analysis has to be performed taking into account the non-Gaussianity of the wind pressures. With the increasing precision and sampling frequency of pressure sensors, large short and local peak events are more usually captured. Their relevance is naturally questioned in the context of a structural design. Furthermore, the increasing computational power allows for accumulation and analysis of larger data sets revealing the detailed nature of wind flows around bluff bodies. In particular, in the shear layers and where local vortices form, it is commonly admitted that the Probability Density Function (PDF) of measured pressures might exhibit two or more significant components. These mixed flows can be modelled with mixture models [Cook (2016)]. Whenever several processes coexist, and when one of them is leading in the tail of the statistical distribution, as will be seen next in the context of corner vortices over a flat roof, it is natural to construct the extreme value model with this leading process and not with the mixed observed pressures. It is therefore important to separate the different processes that can be observed in the pressure histories. Once this is done, specific analytical formulations of non-Gaussian peak factors can be used to evaluate the statistics of extreme values [Kareem and Zhao (1994), Chen (2009)]. The separation of mixed processes is usually done by means of the PDF of the signals [Cook (2016)]. This information is of course essential to perform an accurate decomposition but it might be facilitated by considering higher rank information like auto-correlations and higher correlations like the triple or quadruple correlation. Indeed, the two phenomena that need to be separated and identified might be characterized by significantly different timescales, which are not reflected in the PDF. In this paper, the large negative pressures measured on a flat roof are analyzed and decomposed into two elementary processes, namely, the flapping corner vortex and the turbulent flow detaching from the sharp upstream edge. The full paper will finally show that an accurate decomposition of the recorded pressures into their underlying modes provides a more meaningful evaluation of the extreme pressures. [less ▲]

Detailed reference viewed: 95 (16 ULiège)
Full Text
Peer Reviewed
See detailL’analyse des acides gras érythrocytaires maternels en début de grossesse révèle un faible index oméga-3
Hoge, Axelle ULiege; Bernardy, Florence; Donneau, Anne-Françoise ULiege et al

in Nutrition Clinique et Metabolisme (2018, December), 32(4),

Detailed reference viewed: 62 (10 ULiège)
Full Text
Peer Reviewed
See detailLa gastronomie comme patrimoine culturel. Valorisation d'un terroir: l'Ogliastra (Italie) et le Pays de Herve (Belgique)
Aresu, Anna ULiege

in Revue Internationale d'Études en Langues Modernes Appliquées (2018, December), II

The cultural heritage of our food production is very important for our present and future time. Gastronomy is a key to discover places where we find the identity of people, their culture, their traditions ... [more ▼]

The cultural heritage of our food production is very important for our present and future time. Gastronomy is a key to discover places where we find the identity of people, their culture, their traditions, their history. We must pay attention to this heritage and try to defend it, to saveguard and promote it for current and next generations all over the world. The organisation of a cultural project related to gastronomy, which concerns small regions, in this case Ogliastra (Sardinia - Italy) and the Pays de Herve (Wallonia - Belgium) can be applied to a large territory and to other areas of our planet through the promotion and the valorisation of the agricultural produts. Even if these terroirs have two different realities of agri-food production, this heritage belongs to the economic and social reality of today's small producers, their survival in an increasingly globalized market, with a place in short food supply chain, as well as local and regional agriculture. [less ▲]

Detailed reference viewed: 19 (2 ULiège)
Full Text
Peer Reviewed
See detailThyroide dysfunction after Alemtuzumab treatment for multiple sclerosis : a report of four cases
Daniel, Sara ULiege; HANSEN, Isabelle ULiege; Dive, Dominique ULiege et al

in Acta Clinica Belgica (2018, December), 73(2),

Detailed reference viewed: 81 (7 ULiège)
Full Text
See detailEntre authenticité et extrapolation : l’interprétation des œuvres de Nicolas Schöffer
D'Haenens, Manon ULiege

in CeROArt: Conservation, Exposition, Restauration d'Objets d'Art (2018, December), HS

This paper presents a discussion about the interpretation of contemporary artworks, with case studies of Nicolas Schöffer. It is based on the definition of conservation as interpretation, a decision ... [more ▼]

This paper presents a discussion about the interpretation of contemporary artworks, with case studies of Nicolas Schöffer. It is based on the definition of conservation as interpretation, a decision process in order to transmit artworks. The concepts of authenticity, intentionality and extrapolation are confronted to characteristic case studies from contemporary artworks. [less ▲]

Detailed reference viewed: 27 (8 ULiège)
Full Text
Peer Reviewed
See detailGrowth hormone (GH) deficient mice with GHRH ablation are severely deficient in vaccine and immune responses against Streptococcus pneumoniae
Farhat, Khalil; Bodart, Gwennaëlle ULiege; Moutschen, Michel ULiege et al

in Acta Clinica Belgica (2018, December), 73(6 (Suppl.2)),

Detailed reference viewed: 28 (2 ULiège)
Full Text
Peer Reviewed
See detailInternet of Things: learning and practices. Application to Smart City
Debauche, Olivier ULiege; Mahmoudi, Saïd; Mahmoudi, Sidi Ahmed

in IEEE Explore (2018, November 28)

Internet of Things is becoming widely present in our daily life. In fact, more and more devices able to interact together have been recently designed and launched in the market. Learning Internet of ... [more ▼]

Internet of Things is becoming widely present in our daily life. In fact, more and more devices able to interact together have been recently designed and launched in the market. Learning Internet of Things technologies is becoming unavoidable in education. In this paper, we propose a practical approach allowing to progressively learn, by practice the essential concepts of Internet of Things applied to Smart Cities. From basic knowledge of python language and the use of microcontrollers Pycom such as LoPy, students can develop skills and also smart applications in the field of Internet of Things. [less ▲]

Detailed reference viewed: 86 (2 ULiège)
Full Text
Peer Reviewed
See detailMalaria risk assessment at local level using satellite imagery and BRT in the Peruvian Amazon
Solano-Villarreal, Elisa; Valdivia, Walter; Linard, Catherine ULiege et al

in Archives of Public Health (2018, November 13), 77 (suppl 1)(7),

Background: Malaria in Loreto department remains a public health problem, accounting for more than 90% of reported cases in Peru. This is the first study in the Peruvian Amazon aimed at assessing the risk ... [more ▼]

Background: Malaria in Loreto department remains a public health problem, accounting for more than 90% of reported cases in Peru. This is the first study in the Peruvian Amazon aimed at assessing the risk of malaria transmission using satellite imagery and Boosted Regression Trees (BRT). Methods: Villages with at least one malaria case between 2010 and 2015 from the routine surveillance data in Loreto were georeferenced and their cases aggregated by year and species. Social and environmental variables were derived from Landsat satellite imagery and other spatial data, then included as explanatory variables into a crossvalidated Poisson BRT model for malaria incidence at the local level. Time-dependent explanatory variables included forest coverage (FC, %), annual forest loss (FL,%), cumulative annual rainfall (CAR, mm), annual-mean land surface temperature (LST, oC), normalised difference vegetation index (NDVI), and normalised difference water index (NDWI). Other variables were Euclidean shortest distance to rivers (SDR, meters), time to major populated villages/towns (TPV, minutes), and night-time lights (NTL, mean value 2010-2013) as proxy of population density. BRT accounts for nonlinearities and interactions between factors with high predictive accuracy for disease risk mapping. Results: A total of 1524 villages were included in the analysis (70% of total Loreto’s villages). More than 90% of relative influence in the overall malaria incidence was explained by five variables: NTL (67.8%), TPV (8.1%), FC (6.5%), CAR (5%) and SDR (4.6%). The analysis by species showed a higher influence of environmental variables (CAR, LST, NDVI and NDWI) for P. falciparum (18.4%) than for P. vivax incidence (9.7%). Malaria risk maps were generated based on model predictions taking into account the relative influence of variables. Conclusions: Remotely sensed data analysed using BRT allowed for maps delimiting areas of high malaria risk in Loreto. These maps will help malaria stakeholders to prioritise areas for control interventions. [less ▲]

Detailed reference viewed: 27 (2 ULiège)
Full Text
Peer Reviewed
See detailThe use of Platelet-Rich Plasma (PRP) to treat chronic tendinopathies: a technical analysis
Kaux, Jean-François ULiege; Emonds-Alt, Thibault ULiege

in British Journal of Sports Medicine (2018, November), 52(Suppl 3), 1

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 white 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. In conclusion, there is a lack of standardization in PRP preparation technique for tendinopathies. However, it appears that the use of a platelet concentration lower than 5 times the baseline and avoidance of leukocytes should be preferred. [less ▲]

Detailed reference viewed: 21 (2 ULiège)
Full Text
See detailHet citizen-science project rond de Hobokense mammoet
Stein, Koen ULiege; Jentgen, Benjamin ULiege; Hellemond, Anthonie et al

in Belgische Vereniging voor Paleontologie & Werkgroep Pleistocene Zoogdieren (2018, November)

The Hoboken mammoth is a Belgian patrimonal piece of natural history that was mostly ignored since its discovery in 1865. The citizen-science program of the Flemish government was deemed ideal to study ... [more ▼]

The Hoboken mammoth is a Belgian patrimonal piece of natural history that was mostly ignored since its discovery in 1865. The citizen-science program of the Flemish government was deemed ideal to study the skeleton and provide a new reconstruction, find out its geological and individual age and get an insight into its state of preservation. Such a paleobiological study is crucial for a better understanding of the evolution of the Hoboken landscape and the Flemish Valley during the last 30.000 years. By actively involving citizen scientists (mostly volunteers, amateur paleontologists and schools) into the different steps of this multi-disciplinary investigation, the participants can obtain a thorough insight into the fundamental values of the STEM disciplines (science, technology, engineering and mathematics). The ultimate goal is to set-up a permanent exhibit in Hoboken with the reconstruction of the complete skeleton combined with the results of additional research on this unique Belgian mammoth. Unfortunately the project was not funded in the 2018 application round, but the authors continue searching for alternative funding. [less ▲]

Detailed reference viewed: 27 (4 ULiège)
Full Text
Peer Reviewed
See detailDéveloppement d’un questionnaire permettant d’identifier la présence de croyances délétères chez les patients lombalgiques
Demoulin, Christophe ULiege; SALAMUN, Irène ULiege; Bertrand, J. et al

in Revue du Rhumatisme (2018, November), 85(Supplément 1), 165-166

Detailed reference viewed: 23 (4 ULiège)
Full Text
Peer Reviewed
See detailComparaison de l’intérêt de différentes techniques d’entraînement sensoriel chez des patients douloureux chroniques (lombalgie, cervicalgie et fibromyalgie)
Demoulin, Christophe ULiege; Geoffroy, M.; Schneider, E. et al

in Revue du Rhumatisme (2018, November), 85(Supplément 1), 105-106

Detailed reference viewed: 36 (3 ULiège)
Full Text
Peer Reviewed
See detailLe peptide chimérique synthétique P7 réduit la douleur et protège le cartilage chez le rat souffrant d’arthrose après méniscectomie partielle et section du ligament croisé
Montjean, R; Escaich, S; Vêtu, C et al

in Revue du Rhumatisme (2018, November), 85S

Detailed reference viewed: 12 (1 ULiège)
Full Text
Peer Reviewed
See detailLe syndécan-4 est un marqueur de l’hypertrophie des chondrocytes du genou arthrosique
Sanchez, Christelle ULiege; Lambert, Cécile ULiege; Dubuc, JE et al

in Revue du Rhumatisme (2018, November), 85S

Detailed reference viewed: 8 (0 ULiège)
Full Text
Peer Reviewed
See detailNew concepts in liver regeneration mechanisms in human severe alcoholic steatohepatitis.
Lejeune, A; Starkel, P; Louvet, A et al

in Hepatology (2018, October 18), 68(S1), 1378

Detailed reference viewed: 20 (2 ULiège)
Full Text
Peer Reviewed
See detailSpatio-temporal reasoning in CIDOC CRM: an hybrid ontology with GeoSPARQL and OWL-Time
Nys, Gilles-Antoine ULiege; Van Ruymbeke, Muriel ULiege; Billen, Roland ULiege

in CEUR Workshop Proceedings (2018, October 13), 2230

Semantic description of cultural heritage information is already widely structured through CIDOC CRM and its different extensions. This shared understanding of cultural heritage information has already ... [more ▼]

Semantic description of cultural heritage information is already widely structured through CIDOC CRM and its different extensions. This shared understanding of cultural heritage information has already proved its usefulness. Until now, despite its spatial and temporal data management proposition, lack standardization limited the possibilities in terms of reasoning and workability. This paper proposes to increase the potentiality offered by the current scheme by including GeoSPARQL and OWL-Time in the framework. The result, as hybrid ontology, allows concurrent spatial and temporal handling. These are used to provide a near-full data management for complex spatio-temporal reasoning and querying through SPARQL queries. Example queries depicting the strength of the approach and allowing knowledge discovery in huge archaeological datasets illustrate its benefits [less ▲]

Detailed reference viewed: 46 (13 ULiège)
Full Text
See detailEffect of antimicrobial drug on lung microbiota in healthy dogs.
Fastrès, Aline ULiege; Vangrinsven, Emilie ULiege; Tutunaru, Alexandru-Cosmin ULiege et al

in Journal of Veterinary Internal Medicine (2018, October 12)

In human and dogs, baseline differences in lung microbiota (LM) have been associated with important clinical features in chronic lung diseases (CLD) and there is growing evidence that an altered LM ... [more ▼]

In human and dogs, baseline differences in lung microbiota (LM) have been associated with important clinical features in chronic lung diseases (CLD) and there is growing evidence that an altered LM contributes to disease pathogenesis. The common use of antibiotic drugs throughout the management of CLD likely represents a major confounding factor in the study of the LM. However, the effect of antibiotic treatment on the LM in healthy individuals has not been specifically investigated yet. The aim of the present study was to assess the short and medium-term effect of an oral treatment with a large spectrum antimicrobial drug on the LM in healthy dogs. Six healthy experimental beagle dogs were included. Amoxycillin/clavulanic acid (AC) was administered at a dose of 20 mg/kg twice daily for 10 days. In each dog, bronchoalveolar lavage fluid (BALF) was collected at 3 different timepoints: before administration of AC (J0) and immediately (J10) as well as 16 days (J26) after interruption of AC. In each BALF, total and differentiated cell counts were obtained and metagenetic analyses were performed on the V1-V3 hypervariable region of 16S rDNA after total bacterial DNA extraction and sequencing on a MiSeq Illumina sequencer. Taxonomical assignation and microbiota community analysis were done with MOTHUR V1.35 with an OTU clustering distance of 0.03. Statistical comparisons between events for microbiota community and BALF cell counts were made using Friedman test and post-hoc t-tests with Bonferroni correction. Statistical differences in bacterial population relative abundance between timepoints were assessed using a mixed linear model with FDR correction for multiple comparisons. Administration of AC did not induce significant changes in BALF cellular counts and had no effect on the richness, evenness and alpha diversity. Bacteroidetes and Proteobacteria abundance increased from J0 to J10 (mean: 12.0 to 24.1, and 12.3 to 26.2%, respectively; p<0.001) and decreased at J26 (13.1 and 9.3%; p<0.001). Firmicutes abundance decreased from J0 to J10 (45.6 to 18.3%; p<0.001) and increased at J26 (28.8%; p<0.001). Actinobacteria abundance increased at J26, compared with J0 and J10 (43.7 compared with 23.2 and 23.5% respectively; p<0.001). We failed to show significant differences between timepoints at the level of genera and species. In conclusion, in healthy dog, oral administration of a commonly used large spectrum antimicrobial drug induces significant changes in microbial population abundance at the phyla level. Most but not all of these changes normalize within 2 weeks after discontinuation of the drug. [less ▲]

Detailed reference viewed: 54 (15 ULiège)
Full Text
See detailComet 66P/du Toit: A Near Earth Main Belt Comet?
Yang, Bin; Opitom, Cyrielle; Jehin, Emmanuel ULiege et al

in Bulletin of the American Astronomical Society (2018, October 01), 50

We obtained medium-resolution and high-resolution spectra of the near-Earth Jupiter family comet (JFC) 66P/du Toit from 300 to 2500 nm with X-shooter/VLT and UVES/VLT on 2018 July 01, 07 and 13 ... [more ▼]

We obtained medium-resolution and high-resolution spectra of the near-Earth Jupiter family comet (JFC) 66P/du Toit from 300 to 2500 nm with X-shooter/VLT and UVES/VLT on 2018 July 01, 07 and 13, respectively. In addition, we obtained a series of narrow-band images of 66P between 2018 May and July with TRAPPIST-South. Comet 66P is one of the weakly active JFCs that were identified by Fernandez & Sosa (2015) as having the highest probability of coming from the Main Belt. Our main goal is to investigate the composition of this comet via measuring the gaseous species in the UV and visible and to study its dust properties via measuring the continuum over a broad wavelength range. Additionally, we aim to measure the ortho-to-para abundance ratio of NH2 to constrain the formation conditions of this comet. I will present our spectroscopic observations as well as the photometric observations of 66P. I will discuss whether this comet shows any clear difference in terms of its volatile profile or its dust profile compared to other typical JFCs. [less ▲]

Detailed reference viewed: 19 (2 ULiège)
Full Text
See detailA high resolution spetrum of comet C/2016 R2 (PanSTARRS) with the ESO VLT
Jehin, Emmanuel ULiege; Opitom, Cyrielle; Hutsemekers, Damien ULiege et al

in Bulletin of the American Astronomical Society (2018, October 01), 50

The returning long period comet C/2016 R2 (PanSTARRS) was discovered on September 7, 2016 at 6.3 au from the Sun. While it was already showing a 20" coma at this large distance (Weryk and Wainscoat 2016 ... [more ▼]

The returning long period comet C/2016 R2 (PanSTARRS) was discovered on September 7, 2016 at 6.3 au from the Sun. While it was already showing a 20" coma at this large distance (Weryk and Wainscoat 2016), it is only in December 2017 that it was found that this comet had a very unusual composition. From radio observations the comet appeared to be very rich in CO and very poor in HCN (Wierzchos and Womack 2018) and its optical spectrum was dominated by CO[SUP]+[/SUP] and more surprisingly N[SUB]2[/SUB][SUP]+[/SUP] emission bands (Cochran and McKay 2018), while most of the emission bands usually detected in the optical spectrum of comets were not detected. In order to investigate in detail its coma in the optical, we obtained a total of 6 hours of Director Discretionary Time on C/2016 R2 with UVES, the high resolution optical spectrograph of the ESO Very Large Telescope, between February 11 and 16, 2018. We used two different settings to optimally cover the whole optical spectrum (326-1060 nm) with a resolving power of 80.000. We report on those observations. We detect strong emissions of the ions CO[SUP]+[/SUP] and N[SUB]2[/SUB][SUP]+[/SUP], and also several CO[SUB]2[/SUB][SUP]+ [/SUP]bands, but no H[SUB]2[/SUB]O[SUP]+[/SUP] . We detect emission lines of the radicals CN, C[SUB]2[/SUB] and C[SUB]3[/SUB] but they are very weak. We computed from these spectra the N[SUB]2[/SUB][SUP]+[/SUP] / CO[SUP]+[/SUP] / CO[SUB]2[/SUB][SUP]+[/SUP] ratios in the coma of the comet which put some constraints on the comet formation models, and compared those values to other comets. The forbidden oxygen [OI] lines are detected, allowing to measure the ratio between the green line and the red doublet which provides a way to determine the abundance of CO and CO[SUB]2[/SUB] relative to H[SUB]2[/SUB]O. For the first time we report the detection of the nitrogen [NI] forbidden doublet at 5197.9 and 5200.2 Å in the coma of a comet, confirming the high abundance of nitrogen in this comet. Interestingly we also detect a line at 9850 Å which could be one of the carbon [CI] forbidden lines but we do not detect the other line of the doublet at 9823 Å. Because of the strong N[SUB]2[/SUB][SUP]+[/SUP] emissions, it was also a unique opportunity to measure the [SUP]14[/SUP]N/[SUP]15[/SUP]N isotopic ratio directly in N[SUB]2[/SUB], the main nitrogen reservoir in the solar nebula. [less ▲]

Detailed reference viewed: 21 (0 ULiège)
Full Text
Peer Reviewed
See detailA realistic mixture of Persistent Organic Pollutants (POPs) reveals possible synergism to inhibit the transactivation activities of the rat Aryl hydrocarbon Receptor (rAhR) in vitro
Doan Thi Que, ULiege; Muller, Marc ULiege; Berntsen, HF et al

in Toxicology Letters (2018, October 01)

While organisms are exposed to mixtures of persistent organic pollutants (POPs), scientific studies usually focus on the toxicity of a single compound at a time and few have addressed the mixture effect ... [more ▼]

While organisms are exposed to mixtures of persistent organic pollutants (POPs), scientific studies usually focus on the toxicity of a single compound at a time and few have addressed the mixture effect. This study aims to determine how a realistic mixture of POPs can affect transactivation of the rat Aryl hydrocarbon Receptor (rAhR) in vitro. Luciferase reporter Dioxin responsive rat hepatoma cell lines (DR-H4IIE) were used to screen both rAhR agonistic and antagonistic activities of 29 compounds: six perfluorinated (PFAA), seven brominated (Br), and 16 chlorinated (Cl) compounds (seven polychlorinated biphenyls (PCBs) and nine organochlorine pesticides) listed as POPs under the 2001 Stockholm Convention. Only 5 (2 Cl and 3 Br) out of the 29 compounds presented rAhR agonistic activities while 16 (13 Cl and 3 Br) were rAhR antagonists. No effect was observed for PFAAs. To test possible interactions between these compounds, a mixture of these 29 POPs and six sub-mixtures (PFAA, Br, Cl, Cl + Br, Cl + PFAA and Br + PFAA), prepared based on the respective concentrations found in Scandinavian human blood with a normal daily intake, were tested for the same activities. Not surprisingly, POP mixture also displayed a rAhR antagonistic activity (IC50 = 371 ± 52 times the blood level) with the lowest effective concentration found at 75-time blood level. This level could be plausibly reached in humans after a food contamination incident or in highly exposed sub-populations. Testing the sub-mixtures showed that the Cl mixture is responsible for the antagonism of the POP mixture, contributing to 80% of the POP response. When DR-H4IIE cells were exposed to the Cl + PFAA mixture, the antagonist level was the same as the response of the POP mixture. This indicates that PFAAs are probably non-specific rAhR antagonists as they did not induce any antagonist response when tested alone. The IC50 of the Cl mixture calculated from the measured IC50 of all 13 active chlorinated compounds, using an additive model, was about the same as the measured IC50, 1.9 M and 2.3 M, respectively. This suggests that these compounds act additively in the Cl mixture. In contrast, the calculated and measured IC50 for the total POP mixture were 22 M and 43.2 M, respectively, along with non-specific rAhR antagonism of PFAA mixture, indicating a possible synergistic effect. [less ▲]

Detailed reference viewed: 29 (2 ULiège)
Full Text
Peer Reviewed
See detailTechnology and aging : new opportunities for a better life
PETERMANS, Jean ULiege; Piccard, Sébastien ULiege; Boulanger, G

in European Geriatric Medicine (2018, October), 9(supp1),

Detailed reference viewed: 36 (4 ULiège)
Full Text
Peer Reviewed
See detailTreating severely brain-injured patients with apomorphine: study protocol for a double blind randomized placebo-controlled trial using behavioral and neuroimaging assessments
Sanz, Leandro ULiege; Lejeune, Nicolas; Thibaut, Aurore ULiege et al

in Frontiers in Neuroscience (2018, October)

Background: Patients who survive severe brain injury may develop chronic disorders of consciousness. Treating these patients to improve recovery is extremely challenging because of the absence of ... [more ▼]

Background: Patients who survive severe brain injury may develop chronic disorders of consciousness. Treating these patients to improve recovery is extremely challenging because of the absence of international guidelines and scarce therapeutic options (Schnakers and Monti, 2017). Among pharmacological treatments, apomorphine, a potent direct non-specific dopamine agonist with a high affinity for D2 receptors, has exhibited promising behavioral effects and safety of use in small-sample pilot studies (Fridman et al., 2009, 2010). However, despite the improvement compared to historical data, the lack of a control group could not eliminate the possibility that the effect was a result of spontaneous recovery, and the true efficacy of apomorphine for the recovery of consciousness remains unclear (Gosseries et al., 2014). In addition, the underlying neural mechanisms of this treatment are still unknown. An upregulation of central thalamic activity through a modulation of the anterior forebrain mesocircuit has been proposed as a possible explanation (Schiff, 2010a, 2010b) but the absence of neuroimaging and neurophysiological data prevent definitive confirmation. This clinical trial aims to 1) verify and quantify the efficacy of apomorphine subcutaneous infusion in patients with disorders of consciousness, 2) better identify the rate and the phenotype of responders to treatment, 3) evaluate tolerance and side effects occurrence in this specific patient population and 4) investigate the neural networks underlying its modulating action on consciousness using multimodal outcome measurements. Methods/design: This study is a prospective double-blind randomized placebo-controlled trial. Forty-eight patients diagnosed with disorders of consciousness (i.e., unresponsive wakefulness syndrome and minimally conscious state) will be randomized to receive a 30-day regimen of either apomorphine hydrochloride or placebo via daily 12-hour subcutaneous infusions. Patients will be monitored at baseline 30 days before initiation of therapy, during treatment and for 30 days after treatment washout, followed by a two-year remote follow-up. In an initial study phase, up to six patients will be treated in an open-label fashion. Behavioral outcome measures will include weekly assessments using standardized scales such as the Coma Recovery Scale – Revised (CRS-R) (Giacino et al., 2004) and the Nociception Coma Scale – Revised (NCS-R) (Chatelle et al., 2012) during the inpatient phase. Tolerance and safety of use will be monitored using a specifically designed Adverse Events Questionnaire filled weekly by the referent physician, from treatment initiation to the end of the inpatient phase. Long-term behavioral follow-up will be performed at 6, 12 and 24 months post-treatment by telephone interview using the Glasgow Outcome Scale – Extended (GOS-E) (Levin et al., 2001) as well as phone-adapted versions of the CRS-R and the Adverse Events Questionnaire. Neurophysiological and neuroimaging measures will complement clinical evaluations and provide data on brain activity. Resting-state high-density electroencephalography (EEG) will be acquired weekly during the whole inpatient phase. In addition, participants will be assessed before and after treatment with Magnetic Resonance Imaging (MRI), Positron Emission Tomography (PET), EEG during auditory paradigms and 24-hours EEG recordings. To measure changes in circadian rhythm, body core temperature (Matsumoto et al., 2013) and body movements (Cruse et al., 2013) will be recorded with non-invasive portable devices throughout the whole duration of the inpatient phase (Figure 1). Statistical analyses will be performed blindly to detect changes in behavioral status, circadian rhythmicity, brain metabolism and functional connectivity both at the individual level (comparing before and after treatment) and at the group level (comparing the apomorphine and the placebo arms). Behavioral response will be determined by changes of diagnosis using the CRS-R, and further analyses will also look at changes between the non-responding and the responding patient subgroups. Age, gender, etiology, time since injury and diagnosis will also be included as regressors. Hypotheses: Based on the mesocircuit hypothesis, we postulate a modulation in the activity of the network’s anterior forebrain structures following administration of apomorphine (Figure 2), which will translate into the following changes: 1) A behavioral improvement such that the CRS-R diagnosis and total score will improve in responding patients, while NCS-R scores may also increase, reflecting a higher perception of pain; along with long-term functional recovery measured by sustained higher GOS-E and CRS-R scores at follow-up compared to the placebo group; 2) A relative recovery of sleep-wake cycles measured by a normalization of circadian rhythmicity as well as an increase in total body movements; 3) A metabolic improvement with significant increase of whole-brain glucose uptake, with highest increase of values found in the striatum, thalamus and frontoparietal cortical areas measured with PET; 4) A modulation of dynamic connectivity in response to apomorphine measured by resting-state fMRI analyses (seed-based and whole-brain connectivity measures) and changes of resting-state EEG connectivity metrics (notably increased mean alpha spectral connectivity, participation coefficient and delta modularity). Additionally, we can expect improvements after treatment in less specific measures of recovery such as sleep cycle architecture on 24-hours EEG hypnograms and the probability of consciousness given by a machine learning multivariate classifier derived from EEG recordings during auditory paradigms (Engemann et al., 2015). While improvements can be expected as well in the placebo arm due to spontaneous recovery and placebo effect, we hypothesize that responding patients in the apomorphine arm will exhibit significantly higher increases in these different markers of recovery. Discussion: New multimodal approaches using neurophysiology and neuroimaging allow a more accurate diagnosis of patients with disorders of consciousness but the current available treatments remain inefficient. This study aims to verify the efficacy of apomorphine for the recovery of consciousness in the first randomized placebo-controlled double-blind trial using multimodal measurement methods. The results will contribute to define the role of dopamine agonists in the treatment of this challenging population of patients and help identify the neural underpinnings underlying the modulation of consciousness networks by apomorphine. Notably, this trial is designed to bring objective neuroimaging and neurophysiological evidence to further assess the validity of the mesocircuit hypothesis and its modulation by pharmacological agents, which may open new therapeutic perspectives. [less ▲]

Detailed reference viewed: 19 (3 ULiège)
Full Text
Peer Reviewed
See detailElderly and technologies: between myths and reality
Piccard, Sébastien ULiege; Pagacz, Pierre ULiege; Boulanger, Christelle et al

in European Geriatric Medicine (2018, October), 2018(9 (supp 1)),

Detailed reference viewed: 40 (13 ULiège)
Full Text
See detailThe use of PRISMA statement improves the reporting quality of meta-analyses published in the field of psychology
Leclercq, Victoria ULiege; Beaudart, Charlotte ULiege; Ajamieh, Sara ULiege et al

in Value in Health Regional Issues (2018, October), 21

Detailed reference viewed: 30 (12 ULiège)
Full Text
Peer Reviewed
See detailAge-related changes in circadian sleep-wake regulation: Impact on cognitive performance and cerebral correlates
Schmidt, Christina ULiege; Reichert, Carolin; Deantoni, Michele ULiege et al

in Journal of Sleep Research. Supplement (2018, September 26)

Detailed reference viewed: 36 (8 ULiège)
Full Text
Peer Reviewed
See detailTOWARDS AN ONTOLOGY FOR THE STRUCTURING OF REMOTE SENSING OPERATIONS SHARED BY DIFFERENT PROCESSING CHAINS
Nys, Gilles-Antoine ULiege; Kasprzyk, Jean-Paul ULiege; Hallot, Pierre ULiege et al

in International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (2018, September 19), XLII(4), 483-490

This paper proposes an ontology to structure and describe processing chains in the remote sensing field. These chains are made up of elementary elements (operations) organized in collections. The ... [more ▼]

This paper proposes an ontology to structure and describe processing chains in the remote sensing field. These chains are made up of elementary elements (operations) organized in collections. The collection notion, including information about order and repeatability of the elements, is widely defined by using the relations between their constituting items and relations to the whole data store. Applications of the ontology are illustrated with web services provided by a platform for users and providers of processing chains. A graphical interface facilitates data integration in a RDF triple store. Thanks to the management of metadata (ISO19115-3), relevant information can be requested by intelligent search engines. Graph analysis, errors management and consistency rules are computed in order to gather coherent information from the different sources. Results of these analyses are then used by machine learning algorithms for new knowledge discovery. [less ▲]

Detailed reference viewed: 83 (24 ULiège)
Full Text
Peer Reviewed
See detailInter- and intra-expert variability in sleep scoring: comparison between visual and automatic analysis
Muto, Vincenzo ULiege; Berthomier, Christian; Schmidt, Christina ULiege et al

in Journal of Sleep Research. Supplement (2018, September 11)

Detailed reference viewed: 20 (2 ULiège)
Full Text
Peer Reviewed
See detailEvaluation of the Effect of Micro-Topography of a Potato Field on ERT to Assess Soil Moisture Patterns in Sandy Soil
Manhaeghe, Thibault ULiege; Wagner, Florian; Dumont, Gaël ULiege et al

in Earthdoc (2018, September 09)

Electrical resistivity tomography is a method that provides a spatial-temporal characterization of the subsurface. In this project, the method is used to monitor a potato field, characterized by a ... [more ▼]

Electrical resistivity tomography is a method that provides a spatial-temporal characterization of the subsurface. In this project, the method is used to monitor a potato field, characterized by a microtopography composed of furrows and ridges. Nevertheless, changes of this micro-topography due to erosion during the growing season could lead to artefacts in the inverted resistivity distribution. To quantify this effect, we first used a hydraulic model with non-uniform infiltration patterns and converted the obtained soil moistures in bulk resistivities. We then conducted a forward modelling with a decrease of the ridge height in the mesh. Afterwards, we used the initial microtopography of the start of the growing season in the inversion and compared the retrieved resistivity distributions to the ones of the hydraulic model. We also compared different array configurations to assess which array is most suitable to retrieve the expected infiltration pattern. Gradient and Wenner configuration were performing best with a coefficient determination coefficient close to 0.9 and a RMS close to 1. The change of ridge height highly impacted the coefficient of determination once the decrease is above 6 cm. Nevertheless, pattern between furrows and ridges can still be retrieved qualitatively up until a decrease of 10 cm. [less ▲]

Detailed reference viewed: 21 (1 ULiège)
Full Text
Peer Reviewed
See detailNutrient digestibility in Algerian local young rabbits according to dietary energy
Saidj, Dahia; Moula, Nassim ULiege; Kadi et al

in Animal (2018, September 02)

Detailed reference viewed: 39 (7 ULiège)
Full Text
See detailHigh resolution spectroscopy of the unusual comet C/2016 R2 (PanSTARRS)
Opitom, Cyrielle; Hutsemekers, Damien ULiege; Rousselot, Philippe et al

in EPSC Abstracts (2018, September 01), 12

We report on high spectral resolution observations of the peculiar comet C/2016 R2 (Pan-STARRS). This comet was found to have a highly unusual composition, with a very high abundance of CO, and is only ... [more ▼]

We report on high spectral resolution observations of the peculiar comet C/2016 R2 (Pan-STARRS). This comet was found to have a highly unusual composition, with a very high abundance of CO, and is only the third comet in which the N2+ ion is clearly detected. Our observations allowed us to measure the N2+/CO+/CO2+ ratios. Among other things, we also put an upper limit to the 14N/15N isotopic ratio, measured for the first time directly from N2+, and detected the [NI] lines for the first time in a comet. [less ▲]

Detailed reference viewed: 22 (3 ULiège)
Full Text
See detailSearch for water outgassing of (1) Ceres near its perihelion
Rousselot, Philippe; Opitom, Cyrielle; Jehin, Emmanuel ULiege et al

in EPSC Abstracts (2018, September 01), 12

(1) Ceres is the largest body in the main asteroid belt and one of the most intriguing object since the discovery of water outgassing in the infrared by the Herschel space observatory in 2014. Ceres is ... [more ▼]

(1) Ceres is the largest body in the main asteroid belt and one of the most intriguing object since the discovery of water outgassing in the infrared by the Herschel space observatory in 2014. Ceres is the current target of NASA's Dawn spacecraft. Recently, the possible influence of the local flux of solar energetic particles (SEP) on the production of a cerean exosphere and water vapor has been suggested. On the other hand the Herschel, IUE and ground-based observations seem to show a correlation between water vapor emission and Ceres heliocentric distance. We used the opportunity of both the perihelion passage of (1) Ceres in 2018 and the presence of Dawn in its vicinity (for measuring the SEP flux in real time) to check the influence of heliocentric distance on water outgassing. We searched for OH emission lines from the limb of Ceres in the near- UV. Despite a sensitivity level similar to the Herschel observations we did not detect any water outgassing. [less ▲]

Detailed reference viewed: 15 (1 ULiège)
Full Text
Peer Reviewed
See detailShould we bank our sleep and clocks? How and why creating large multimodal databases
Vandewalle, Gilles ULiege

in Journal of Sleep Research (2018, September)

Detailed reference viewed: 19 (1 ULiège)
Full Text
Peer Reviewed
See detailAbaloparatide for risk reduction of nonvertebral and vertebral fractures in postmenopausal women with osteoporosis: a network meta-analysis
Reginster, Jean-Yves ULiege; Bianic, F.; Campbell, R et al

in Arthritis and Rheumatology (2018, September), 70(S9), 2308

Detailed reference viewed: 44 (5 ULiège)
Full Text
Peer Reviewed
See detailRelationship between cerebral amyloid burden and cerebral microstructure measured by quantitative MRI in healthy aging
Villar Gonzalez, Pamela ULiege; Chylinski, Daphné ULiege; Narbutas, Justinas ULiege et al

in Frontiers (2018, August 22)

The presence of Alzheimer’s disease (AD) biomarkers in the brain of healthy older individuals has been associated with decreased myelin and increased iron deposits in the brain (Bartzokis, 2011). Novel ... [more ▼]

The presence of Alzheimer’s disease (AD) biomarkers in the brain of healthy older individuals has been associated with decreased myelin and increased iron deposits in the brain (Bartzokis, 2011). Novel Magnetic Resonance Imaging (MRI) techniques, like quantitative multiparameter mapping (MPM), allow to gain insight in the microstructure of the brain and could help to address the link between myelin and iron in the brain (Callaghan et al., 2014) and AD biomarkers. Our aim was, therefore, to relate the amount of myelin and iron content to the cortical amyloid burden. We acquired MPM sequences in a 3T scanner and [18F]flutemetamol positron-emission tomography (PET) images in 55 cognitively healthy adults (35 women), aged 50-70 (mean: 59.5 ± 5.5). We used MPM to infer myelin content, based on magnetization transfer saturation (MT) and longitudinal relaxation rate (R1), and iron content, based on effective transverse relaxation rate (R2*). Cortical beta-amyloid burden was measured with [18F]flutemetamol PET. Multiparameter maps were created and normalised with the hMRI (Balteau et al., 2018) toolbox for MATLAB (The Mathworks Inc, Natick, MA, USA). Correlations between MPM maps and amyloid burden were conducted with SPM12 framework (Wellcome Trust Centre for Neuroimaging, London) p<.05 FWE corrected. As expected (Dean et al., 2017), we observed a link between increased amyloid burden and increased iron content in frontal areas mainly but also in parietal and occipital areas. However, there was an unexpected negative correlation between amyloid burden and white matter iron content in the left superior temporal area. Moreover, a positive association between amyloid burden and myelin content was found in the frontal and temporal lobes in both grey and white matter. Furthermore, R1 values, which depend on both iron and myelin storage, present positive correlations with amyloid burden in both grey and white matter of frontal, temporal and occipital areas. The finding that increased iron in frontoparietal and occipital areas are associated with increased amyloid burden fits with previous studies. However, current results also indicate that individuals with higher cortical amyloid burden have higher myelin water fraction in frontotemporal areas. This would suggest that, in cognitively healthy middle-aged individuals, the presence of amyloid in the brain, which represents a risk factor for AD, is accompanied by both cerebral microstructural decline in some areas and enhanced –possibly compensatory- microstructure properties in other areas. [less ▲]

Detailed reference viewed: 59 (3 ULiège)
Full Text
Peer Reviewed
See detailStates of knowledge: a basis for spatio-temporal model of cultural heritage information
Hallot, Pierre ULiege; Billen, Roland ULiege

in CEUR Workshop Proceedings (2018, August)

Modelling cultural heritage information is a common requirement when considering heritage documentation. The digital documentation is now considered as the first step to heritage conser15 vation. The ... [more ▼]

Modelling cultural heritage information is a common requirement when considering heritage documentation. The digital documentation is now considered as the first step to heritage conser15 vation. The replication of a geographical information model to cultural heritage information is not trivial. Most of proposed spatio-temporal information models do not encompass the diversity of some complex situations encountered in heritage documentation. This diversity remains both on the strong relation of heritage information with time and the necessity for researchers to record not only physical remains but also the planned projects that may never occurred or vir20 tually reconstructed objects for which geometric information is incomplete. In this paper we propose a spatio-temporal information model that considers heritage objects that existed in the past, continue to exist, were planned or planned and never realized. This diversity is of a high importance for heritage research where the relationships between actual space and past states of planned project is their main concern. The developed model is based on the distinction between the existence, the physical realization and the geometrical definition of modelled objects. The proposed model defines the concept of state knowledge which is a cumulative representation of the documented information related to build heritage. 2012 ACM Subject Classification Information systems [less ▲]

Detailed reference viewed: 37 (7 ULiège)
Full Text
Peer Reviewed
See detailIdentification method of an advanced constitutive law for nickel-based alloy Haynes 230 used in solar receivers
Morch, Hélène ULiege; Duchene, Laurent ULiege; Habraken, Anne ULiege

in Journal of Physics. Conference Series (2018, August), 1063

A model to study panels of thin tubes of Haynes 230 nickel alloy used in solar receivers has been developed. The thermo-mechanical behavior of these tubes is simulated using an advanced model capable of ... [more ▼]

A model to study panels of thin tubes of Haynes 230 nickel alloy used in solar receivers has been developed. The thermo-mechanical behavior of these tubes is simulated using an advanced model capable of representing specific characteristics such as viscosity, kinematic and cyclic hardening, static recovery, or dynamic recovery. The constitutive law implemented is a finite-element visco-plastic model based on the work of Chaboche. Due to its complexity, the model uses a significant number of parameters that need to be identified at several temperatures. The aim of this article is to define an efficient method for the identification of the parameters of this Chaboche model adapted to cyclic thermo-mechanical loading. [less ▲]

Detailed reference viewed: 33 (9 ULiège)
Full Text
See detailHi-5: A potential high-contrast thermal near-infrared imager for the VLTI
Defrere, Denis ULiege; Ireland, M.; Absil, Olivier ULiege et al

in Proceedings of SPIE: The International Society for Optical Engineering (2018, July 09), 10701

Hi-5 is a high-contrast (or high dynamic range) infrared imager project for the VLTI. Its main goal is to characterize young extra-solar planetary systems and exozodiacal dust around southern main ... [more ▼]

Hi-5 is a high-contrast (or high dynamic range) infrared imager project for the VLTI. Its main goal is to characterize young extra-solar planetary systems and exozodiacal dust around southern main-sequence stars. In this paper, we present an update of the project and key technology pathways to improve the contrast achieved by the VLTI. In particular, we discuss the possibility to use integrated optics, proven in the near-infrared, in the thermal near-infrared (L and M bands, 3-5 μm) and advanced fringe tracking strategies. We also address the strong exoplanet science case (young exoplanets, planet formation, and exozodiacal disks) offered by this wavelength regime as well as other possible science cases such as stellar physics (fundamental parameters and multiplicity) and extragalactic astrophysics (active galactic nuclei and fundamental constants). Synergies and scientific preparation for other potential future instruments such as the Planet Formation Imager are also briefly discussed. © 2018 SPIE. [less ▲]

Detailed reference viewed: 31 (7 ULiège)
Full Text
See detailCharacterizing the atmosphere of Proxima b with a space-based mid-infrared nulling interferometer
Defrere, Denis ULiege; Léger, A.; Absil, Olivier ULiege et al

in Proceedings of SPIE: The International Society for Optical Engineering (2018, July 09), 10701

Proxima b is our nearest potentially rocky exoplanet and represents a formidable opportunity for exoplanet science and possibly astrobiology. With an angular separation of only 35 mas (or 0.05 AU) from ... [more ▼]

Proxima b is our nearest potentially rocky exoplanet and represents a formidable opportunity for exoplanet science and possibly astrobiology. With an angular separation of only 35 mas (or 0.05 AU) from its host star, Proxima b is however hardly observable with current imaging telescopes and future space-based coronagraphs. One way to separate the photons of the planet from those of its host star is to use an interferometer that can easily resolve such spatial scales. In addition, its proximity to Earth and its favorable contrast ratio compared with its host M dwarf (approximately 10-5 at 10 microns) makes it an ideal target for a space-based nulling interferometer with relatively small apertures. In this paper, we present the motivation for observing this planet in the mid-infrared (5-20 microns) and the corresponding technological challenges. Then, we describe the concept of a space-based infrared interferometer with relatively small (<1m in diameter) apertures that can measure key details of Proxima b, such as its size, temperature, climate structure, as well as the presence of important atmospheric molecules such as H2O, CO2, O3, and CH4. Finally, we illustrate the concept by showing realistic observations using synthetic spectra of Proxima b computed with coupled climate chemistry models. © 2018 SPIE. [less ▲]

Detailed reference viewed: 34 (8 ULiège)
Full Text
Peer Reviewed
See detailDigital Holographic Interferometry in the Long-Wave Infrared Range for Measuring Large Deformations of Space Components under Thermal-Vacuum Testing
Vandenrijt, Jean-François ULiege; Thizy, Cédric ULiege; Languy, Fabian ULiege et al

in Proceedings (2018, July 09), 2018(2), 534

Holographic interferometry at around 10 µm wavelengths has many advantages. It offers the possibility of large deformation measurement, while being much less sensitive to external perturbations. We ... [more ▼]

Holographic interferometry at around 10 µm wavelengths has many advantages. It offers the possibility of large deformation measurement, while being much less sensitive to external perturbations. We present the state-of-the art of this technique applied to several industrial cases of the space industry. In particular, we demonstrate that the technique is well adapted to measurement of full-field deformation maps of space structures undergoing large temperature variations typical to what they experience in space conditions. [less ▲]

Detailed reference viewed: 38 (12 ULiège)
Full Text
See detailPlanet formation imager: Project update
Monnier, J. D.; Ireland, M.; Kraus, S. et al

in Proceedings of SPIE: The International Society for Optical Engineering (2018, July 01), 10701

The Planet Formation Imager (PFI) is a near- and mid-infrared interferometer project with the driving science goal of imaging directly the key stages of planet formation, including the young proto-planets ... [more ▼]

The Planet Formation Imager (PFI) is a near- and mid-infrared interferometer project with the driving science goal of imaging directly the key stages of planet formation, including the young proto-planets themselves. Here, we will present an update on the work of the Science Working Group (SWG), including new simulations of dust structures during the assembly phase of planet formation and quantitative detection efficiencies for accreting and non-accreting young exoplanets as a function of mass and age. We use these results to motivate two reference PFI designs consisting of a) twelve 3m telescopes with a maximum baseline of 1.2km focused on young exoplanet imaging and b) twelve 8m telescopes optimized for a wider range of young exoplanets and protoplanetary disk imaging out to the 150K H2O ice line. Armed with 4 x 8m telescopes, the ESO/VLTI can already detect young exoplanets in principle and projects such as MATISSE, Hi-5 and Heimdallr are important PFI pathfinders to make this possible. We also discuss the state of technology development needed to make PFI more affordable, including progress towards new designs for inexpensive, small field-of-view, large aperture telescopes and prospects for Cubesat-based space interferometry. © 2018 SPIE. [less ▲]

Detailed reference viewed: 30 (8 ULiège)
Full Text
Peer Reviewed
See detailA Novel Geometry for Shear Test Using Axial Tensile Setup
Yuan, Sibo ULiege; Duchene, Laurent ULiege; Milis, Olivier ULiege et al

in Proceedings (2018, July), 2

This paper studies a novel geometry for the in-plane shear test performed with an axial electromechanical testing machine. In order to investigate the influence of the triaxiality rate on the mechanical ... [more ▼]

This paper studies a novel geometry for the in-plane shear test performed with an axial electromechanical testing machine. In order to investigate the influence of the triaxiality rate on the mechanical behavior, different tests will be performed on the studied material: simple tensile tests, large tensile tests and shear tests. For the whole campaign, a common equipment should be employed to minimize the impact of the testing device. As a consequence, for the shear tests, the geometry of the specimen must be carefully designed in order to adapt the force value and make it comparable to the one obtained for the tensile tests. Like most of the existing shear-included tensile test specimens, the axial loading is converted to shear loading at a particular region through the effect of geometry. A symmetric shape is generally preferred, since it can restrict the in-plane rotation of the shear section, keep shear increasing in a more monotonic path and double the force level thanks to the two shear zones. Due to the specific experimental conditions, such as dimensions of the furnace and the clamping system, the position of the extensometer or the restriction of sheet thickness (related to the further studies of size effect at mesoscale and hot temperature), several geometries were brought up and evaluated in an iterative procedure via finite element simulations. Both the numerical and experimental results reveal that the final geometry ensures some advantages. For instance, a relatively low triaxiality in the shear zone, limited in-plane rotation and no necking are observed. Moreover, it also prevents any out-of-plane displacement of the specimen which seems to be highly sensitive to the geometry, and presents a very limited influence of the material and the thickness. [less ▲]

Detailed reference viewed: 51 (10 ULiège)
Full Text
Peer Reviewed
See detailExperimental performance of a field of parabolic trough collectors for small-scale power generation
Dickes, Rémi ULiege; Dumont, Olivier ULiege; Thiebaut, Jérémie et al

in Proceedins of ECOS 2018 (2018, June 23)

The present work investigates the solar field performance of a pilot system installed at the University of Liège in Belgium. The system includes eight parabolic trough collectors connected in series (66m² ... [more ▼]

The present work investigates the solar field performance of a pilot system installed at the University of Liège in Belgium. The system includes eight parabolic trough collectors connected in series (66m² in total) and is aimed for small-scale power generation (2kWe) at low-temperature operation (150°C max.). The paper describes the test facility and presents experimental data gathered under various operating conditions. After posttreatment, the measurements are used to calibrate a deterministic model of the solar collectors. This model is used to better estimate the various sources of losses during the solar energy conversion and to investigate potential means of performance improvements. While the collection efficiency recorded experimentally does not exceed 30%, it is shown that an improvement of the tracking could raise this value to 65% and thus meet the design expectations. [less ▲]

Detailed reference viewed: 66 (8 ULiège)
Full Text
Peer Reviewed
See detailLaser ultrasound flexible system for non-contact inspection of medium size and complex shaped composite structures made of carbon fiber reinforced polymer
Vandenrijt, Jean-François ULiege; Languy, Fabian ULiege; Thizy, Cédric ULiege et al

in Proceedings (2018, June 22), 2018(2), 455

We present the development of a contactless laser ultrasound system for nondestructive inspection of CFRP complex structures. Ultrasound are generated by a thermoelastic effect resulting from a green ... [more ▼]

We present the development of a contactless laser ultrasound system for nondestructive inspection of CFRP complex structures. Ultrasound are generated by a thermoelastic effect resulting from a green pulsed laser insulating a point of the inspected part. The resulting displacement of the surface point is probed by a two-wave mixing based interferometer working in the near infrared. The system is flexible and completely fiber-coupled. It is able to provide C-scans on complex shaped CFRP aeronautical structures. [less ▲]

Detailed reference viewed: 45 (19 ULiège)
Full Text
Peer Reviewed
See detailThermography and Shearography Inspection of Composite Hybrid Sandwich Structure Made of CFRP and GFRP Core and Titanium Skins
Georges, Marc ULiege; Srajbr, Christian; Menner, Philipp et al

in Proceedings (2018, June 22), 2018(2), 484

We have investigated several full-field contactless techniques, such as thermography and shearography, with several excitation methods for inspecting hybrid composite-metal sandwich structures. The latter ... [more ▼]

We have investigated several full-field contactless techniques, such as thermography and shearography, with several excitation methods for inspecting hybrid composite-metal sandwich structures. The latter are made of a core with epoxy reinforced by carbon and glass fibers and skins of titanium. Several calibrated defects are incorporated at different places in depth and are made of air gaps and inserts. [less ▲]

Detailed reference viewed: 57 (3 ULiège)
Full Text
Peer Reviewed
See detailA comparison of the P300 and PET in patients with disorders of consciousness in absence of response to command
Annen, Jitka ULiege; Wolff, Audrey ULiege; Blandiaux, Séverine ULiege et al

in European Journal of Neurology (2018, June), 25(S2),

Detection and interpretation of signs of "covert command following" in patients with disorders of consciousness (DOC) remains a challenge for clinicians. In this study, we used a tactile P3-based BCI in ... [more ▼]

Detection and interpretation of signs of "covert command following" in patients with disorders of consciousness (DOC) remains a challenge for clinicians. In this study, we used a tactile P3-based BCI in 12 patients without behavioral command following, attempting to establish "covert command following." These results were then confronted to cerebral metabolism preservation as measured with glucose PET (FDG-PET). One patient showed "covert command following" (i.e., above-threshold BCI performance) during the active tactile paradigm. This patient also showed a higher cerebral glucose metabolism within the language network (presumably required for command following) when compared with the other patients without "covert command-following" but having a cerebral glucose metabolism indicative of minimally conscious state. Our results suggest that the P3-based BCI might probe "covert command following" in patients without behavioral response to command and therefore could be a valuable addition in the clinical assessment of patients with DOC. [less ▲]

Detailed reference viewed: 60 (8 ULiège)
Full Text
Peer Reviewed
See detailHYALURONAN DERIVATIVE HYMOVIS® INCREASES CARTILAGE VOLUME AND TYPE II COLLAGEN TURNOVER IN OSTEOARHRITIC KNEE: DATA FROM MOKHA STUDY
Henrotin, Yves ULiege; Bannuru, R; Malaise, Michel ULiege et al

in Annals of the Rheumatic Diseases (2018, June), 77(supplement 2), 1614

Detailed reference viewed: 35 (3 ULiège)
Full Text
Peer Reviewed
See detailEFFICACY OF BIO-OPTIMISED CURCUMA EXTRACT (FLEXOFYTOL®) FOR PAINFUL KNEE OSTEOARTHRITIS: DATA FROM COPRA, A MULTICENTER RANDOMISED CONTROLLED STUDY
Henrotin, Yves ULiege; Malaise, Michel ULiege; Wittoek, R et al

in Annals of the Rheumatic Diseases (2018, June), 77(supplement 2), 790

Detailed reference viewed: 124 (10 ULiège)
Full Text
Peer Reviewed
See detailEx-vivo vasorelaxation induced by polyphenol-rich extracts from plant, fruits and berries on porcine coronary artery rings
Ebabe Elle, Etienne ULiege; Defraigne, Jean-Olivier ULiege; Schini-Kerth, Valérie et al

in Free Radical Biology and Medicine (2018, June), 120

Detailed reference viewed: 32 (9 ULiège)
Full Text
Peer Reviewed
See detailGLUCOSEPANE : A NEW BIOMARKER OF THE SEVERITY OF OSTEOARTHRITIS
Rabbani, N; Ahmed, U; Lambert, Cécile ULiege et al

in Annals of the Rheumatic Diseases (2018, June), 77(supplement 2), 181

Detailed reference viewed: 28 (1 ULiège)