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See detailHemicelluloses and Lignin in Biorefineries
wertz, Jean-Luc; Deleu, Magali ULiege; Coppée, Séverine et al

Book published by CRC Press (in press)

Hemicelluloses and Lignin in Biorefineries provides an understanding of lignocellulosic biomass, which is mainly composed of cellulose, hemicelluloses, and lignin. It promotes the valorization of these ... [more ▼]

Hemicelluloses and Lignin in Biorefineries provides an understanding of lignocellulosic biomass, which is mainly composed of cellulose, hemicelluloses, and lignin. It promotes the valorization of these molecules in the context of the bioeconomy and presents hemicelluloses and lignin, which are generated in lignocellulosic biorefineries, as the molecules of the future. The viability of these molecules lies in their renewability and potential. This book covers all aspects of hemicelluloses and lignin including structure, biosynthesis, extraction, biodegradation, and conversion. The book also looks ahead to the socioeconomic and environmental value of biobased industry and emphasizes an understanding of the potential of lignocellulosic biomass. [less ▲]

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See detailSemantic externalism(s) and cognitive transparency
Leclercq, Bruno ULiege; De Brabanter, Philippe

Conference (2017, September 22)

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See detailIdentification et analyse fonctionnelle de nouveaux variants d’épissage du CD46 des bovidés, le (co)-récepteur du virus BVD/MD
Alzamel, Nidal ULiege

Doctoral thesis (2017)

The pestivirus bovine viral diarrhea virus (BVDV) is known to bind to the CD46 molecule, which subsequently promotes entry of the virus. Mapping of the BVD-virion-binding site has shown that two peptides ... [more ▼]

The pestivirus bovine viral diarrhea virus (BVDV) is known to bind to the CD46 molecule, which subsequently promotes entry of the virus. Mapping of the BVD-virion-binding site has shown that two peptides, 66EQIV69 and 82GQVLAL87, located on antiparallel beta sheets in the most distal complement control protein module (CCP1), provide the attachment platform. In the present study, we reveal new CD46-encoding transcripts that are predicted to encode CCP1-containing soluble forms. Further, we show that the serum of most adult cattle contains soluble CD46 (sCD46) and that a recombinant soluble isoform neutralizes BVDV infectivity in an in vitro assay. We have then established an ELISA for determination of plasma sCD46 in a large cohort of animals. Overall, serum sCD46 amounts to 8 ± 18 ng/mL (mean ± SD, n = 543), with a IC [95-105] ranging from 6,4 to 9,8 ng/mL and extreme values between 0 and 178 ng/mL. We found that sCD46 is not detectable in fetal and neonatal sera and that its plasma concentration increases progressively up to adulthood. We also detected high- and low-sCD46 performers and show that this phenotype does not depend of environment. As modern rearing techniques make it possible to disseminate genetically-determined phenotypes very quickly in a population, a large-scale study examining whether high-sCD46 animals provide epidemiological protection against BVDV infection and transmission should be undertaken [less ▲]

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See detailA two-step methodology for human pose estimation increasing the accuracy and reducing the amount of learning samples dramatically
Azrour, Samir ULiege; Pierard, Sébastien ULiege; Geurts, Pierre ULiege et al

in Advanced Concepts for Intelligent Vision Systems (2017, September)

In this paper, we present a two-step methodology to improve existing human pose estimation methods from a single depth image. Instead of learning the direct mapping from the depth image to the 3D pose, we ... [more ▼]

In this paper, we present a two-step methodology to improve existing human pose estimation methods from a single depth image. Instead of learning the direct mapping from the depth image to the 3D pose, we first estimate the orientation of the standing person seen by the camera and then use this information to dynamically select a pose estimation model suited for this particular orientation. We evaluated our method on a public dataset of realistic depth images with precise ground truth joints location. Our experiments show that our method decreases the error of a state-of-the-art pose estimation method by 30%, or reduces the size of the needed learning set by a factor larger than 10. [less ▲]

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See detailPrevalence of sarcopenia in a population of nursing home residents according to their frailty status: results of the SENIOR cohort
Buckinx, Fanny ULiege; Reginster, Jean-Yves ULiege; BRUNOIS, Théo ULiege et al

in Journal of Musculoskeletal & Neuronal Interactions (2017), 17(3), 209-17

Objective: To investigate the relationship between frailty and sarcopenia, by evaluating the prevalence of sarcopenia among frail, pre-frail and robust elderly nursing home residents in Belgium. Methods ... [more ▼]

Objective: To investigate the relationship between frailty and sarcopenia, by evaluating the prevalence of sarcopenia among frail, pre-frail and robust elderly nursing home residents in Belgium. Methods: This is an analysis of baseline data collected from the SENIOR (Sample of Elderly Nursing home Individuals: an Observational Research) cohort. All subjects received a sarcopenia evaluation, based on the definition proposed by the European Working Group on Sarcopenia in Older People (EWGSOP). The frailty evaluation was primarily based on FRIED’s definition but also on 9 other operational definitions. Results: A total of 662 subjects (73.1% of women) were included in this analysis (mean age: 83.2±8.99 years). The prevalence of sarcopenia was 38.1% whereas the prevalence of frail and pre-frail persons was respectively 24.7% and 61.4%. Among frail, pre-frail and robust subjects, respectively 47%, 38.9% and 16.3% were diagnosed sarcopenic. The prevalence of sarcopenia according to ten different operational definitions of frailty ranged between 32.8 % (i.e. Frail scale Status and Frailty Index) and 47% (i.e. Fried definition). Conclusion: This research highlights that over a third of nursing home residents are sarcopenic and the percentage is almost 50% among frail subjects; those latter constitute about 1 in 4 of the population of nursing home residents studied here. [less ▲]

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See detailIMPACT OF DYNAMIC SEATING ON CHILD’S BEHAVIOR AND CONCENTRATION IN CLASSROOM
Fettweis, Tatiana ULiege; Nattier, Elodie; Vanderthommen, Marc ULiege

Poster (2017)

Introduction Ergonomics and dynamism in classroom seem to influence schoolchildren’s behavior and concentration [1-2]. This study aimed to evaluate the influence of dynamic school furniture associated ... [more ▼]

Introduction Ergonomics and dynamism in classroom seem to influence schoolchildren’s behavior and concentration [1-2]. This study aimed to evaluate the influence of dynamic school furniture associated with a postural education on schoolchildren’s behavior and concentration in classroom. Methods Seventy-seven primary school children were divided into an experimental group (EG) (n=46, age=6.4, height=119.3cm, weight=23.2kg, body mass=16.5) and a control group (CG) (n=31, age=6.5, height=119.6cm, weight=23.1kg, body mass=16.1) and took part in this 2-school-year-follow-up cluster randomized controlled study including 4 phases of evaluation (E1 to E4) consisting of assessing the children’s behavior (sit or not / on task or not) from videos and their attention capacities with 2 different tests. In the first year, the EG was assessed before any intervention (E1), after having provided a triangular and dynamic cushion and 3 months of postural education (E2) and after 6 months using the cushion. In the second year, outcomes were assessed after 2 years using the cushion (E4). The CG had identical evaluation design but without any intervention. Results Compared with the CG, the children of the EG significantly improved their behavior at each step of the study. So, children’s spent proportionately more time sitting when ergonomic and dynamic seating was combined with postural education (p≤0.04) and they had more “on task” behavior (p≤0.001). Furthermore, the intervention tends to optimize the children’s attention (p<0.05). Conclusions The children’s behavior and concentration in the classroom was improved using ergonomic and dynamic furniture combined with a postural intervention. Further studies are needed to confirm those results. This study suggests that early prevention seems efficient to optimized schoolchildren’s behavior. [less ▲]

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See detailElsschot en de onzegbaarheid
Steyaert, Kris ULiege

in Rymenants, Koen; de Strycker, Carl (Eds.) Willem Elsschot: Dichter. Alle gedichten verzameld en toegelicht (2017)

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See detailImpact of postural education on child’s sitting position in classroom and on back pain
Fettweis, Tatiana ULiege; Nattier, Elodie; Vanderthommen, Marc ULiege

Poster (2016, November)

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See detailThe Companion Mass Function across the Stellar and Substellar Regime
Reggiani, Maddalena ULiege

Doctoral thesis (2014)

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See detailIMPROVING CHILD’S SITTING POSITION, BACK COMFORT AND ATTENTION IN CLASSROOM WITH A POSTURAL EDUCATION
Fettweis, Tatiana ULiege; Henrist, Laura; Vanderthommen, Marc ULiege

Poster (2014)

Introduction Back pain concerns 30 to 50% of children and can appear as soon as primary school; mainly due to poor sitting position1. In addition it seems posture have an effect on school achievement² ... [more ▼]

Introduction Back pain concerns 30 to 50% of children and can appear as soon as primary school; mainly due to poor sitting position1. In addition it seems posture have an effect on school achievement². Purpose This study aimed to evaluate the influence of school furniture and postural education on schoolchildren’s sitting position, back complaints and attention in classroom. Methods Nine children aged 6-7 years constitute the experimental group (EG) and took part in this 2-school-year-follow-up study including 5 phases of evaluation (E1 to E5) consisting of assessing the children’s sitting position (SP) with a specific observation form. Nine other children (representative of the EG) constituted a control group (CG). In the first year, the children’s SP was assessed before (E1) and after having provided new school furniture fitted to the children’s size (E2) and after having provided a triangular cushion and postural education (E3). In the second year, the long term effect was evaluated (E4) and then, a tilted desk was installed and its influence was assessed after a second postural education period (E5). An oral questionnaire about spinal pains and adapted attention tasks of the Nepsy³ were submitted to children at the beginning and the end of each school-year. Student t-tests were used to compare children of both classroom and Friedman’s and Wilcoxon signed-rang tests to compare each evaluation with others. Results Compared with the CG and except from E3 to E4, the children’s of the EG significantly improved their SP at each step of the study (p<0.02). Furthermore, interventions tend to decrease back complaints and to improve attention. Conclusions The children’s SP was improved using appropriate furniture and specific tools (triangular cushion and tilted desk) combined with a postural intervention. This approach also tends to reduce back complaints and to improve attention. Further studies are needed to determine if this kind of programs is efficient to reduce the risk of LBP in adulthood and to really improve school achievement. [less ▲]

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