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See detailEducation of instructors of a physical activity program for cancer patients and survivors: planning and evaluation of interactive adapted physical activity working groups
Rompen, Jérôme ULg; Korycki, Marta ULg; Ortmans, Sabine et al

Conference (2016, June)

Introduction Raviva is a Belgian adapted physical activity (APA) program for cancer patients and survivors, developed by the Belgian Foundation against Cancer (http://www.cancer.be/aide-aux-patients/la ... [more ▼]

Introduction Raviva is a Belgian adapted physical activity (APA) program for cancer patients and survivors, developed by the Belgian Foundation against Cancer (http://www.cancer.be/aide-aux-patients/la-fondation-votre-service/raviva-bouger-pour-se-sentir-mieux). Activities supported by this foundation are supervised by instructors with inconstant trainings and experiences. Indeed, in Belgium, APA instructors do not necessarily follow specific training programs such those proposed by the ACSM (Schmitz et al., 2010). As it is the case in sport coaches’ education (Erickson et al., 2008), interacting with colleagues and sharing knowledge could be an interesting way to improve APA instructors’ competencies. The aim of this study was to plan and analyse interactive APA working groups, as part of a training day intended for all Raviva instructors. Methods As part of this training, we proposed three practical physical activity working groups, each one concerning a specific activity: fitness, relaxation and aqua-aerobics. They were designed to generate some good practices in intervention with Raviva groups and had to be interactive: all participants had the opportunity to present their own practices and to discuss and comment the practices of the others. Three methods were used to analyse the activities: interviews of the organizers (n=4), a questionnaire for all trainees (n=35) and participant observation. Results Many examples of practical situations and good practices have been identified.79.4% of the trainees considered that the proposed method was interesting and 88.3% mentioned that they have been actively involved. The organizers were less convinced as they highlighted a lack of ideas sharing as well as low active participation and dynamism. Observations confirmed the organizers’ opinions. Conclusions Participants appeared to be globally satisfied with the practical activities. However, further research is needed to measure the impact of such methods on their future practices. [less ▲]

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See detailSpeech characteristic of French-speaking children with Dysarthria: Pilot study
MacLeod, andrea; Maillart, Christelle ULg; Ancelle, J. et al

Poster (2016, June)

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See detailHeat tracer test in an alluvial aquifer: field experiment and inverse modelling
Klepikova, Maria; Wildemeersch, Samuel; Hermans, Thomas ULg et al

in Journal of Hydrology (2016), 540

Using heat as an active tracer for aquifer characterization is a topic of increasing interest. In this study, we investigate the potential of using heat tracer tests for characterization of a shallow ... [more ▼]

Using heat as an active tracer for aquifer characterization is a topic of increasing interest. In this study, we investigate the potential of using heat tracer tests for characterization of a shallow alluvial aquifer. A thermal tracer test was conducted in the alluvial aquifer of the Meuse River, Belgium. The tracing experiment consisted in simultaneously injecting heated water and a dye tracer in an injection well and monitoring the evolution of groundwater temperature and tracer concentration in the pumping well and in measurement intervals. To get insights in the 3D characteristics of the heat transport mechanisms, temperature data from a large number of observation wells closely spaced along three transects were used. Temperature breakthrough curves in observation wells are contrasted with what would be expected in an ideal layered aquifer. They reveal strongly unequal lateral and vertical components of the transport mechanisms. The observed complex behavior of the heat plume is explained by the groundwater flow gradient on the site and heterogeneities in the hydraulic conductivity field. Moreover, due to high injection temperatures during the field experiment a temperature-induced fluid density effect on heat transport occurred. By using a flow and heat transport numerical model with variable density coupled with a pilot point approach for inversion of the hydraulic conductivity field, the main preferential flow paths were delineated. The successful application of a field heat tracer test at this site suggests that heat tracer tests is a promising approach to image hydraulic conductivity field. This methodology could be applied in aquifer thermal energy storage (ATES) projects for assessing future efficiency that is strongly linked to the hydraulic conductivity variability in the considered aquifer. [less ▲]

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See detailCharacterisation of Phosphate Accumulating Organisms and Techniques for Polyphosphate Detection: A Review
Tarayre, Cédric ULg; Nguyen, Huu-Thanh; Brognaux, Alison ULg et al

in Sensors (2016), 16(797), 1-14

Phosphate minerals have long been used for the production of phosphorus-based chemicals used in many economic sectors. However, these resources are not renewable and the natural phosphate stocks are ... [more ▼]

Phosphate minerals have long been used for the production of phosphorus-based chemicals used in many economic sectors. However, these resources are not renewable and the natural phosphate stocks are decreasing. In this context, the research of new phosphate sources has become necessary. Many types of wastes contain non-negligible phosphate concentrations, such as wastewater. In wastewater treatment plants, phosphorus is eliminated by physicochemical and/or biological techniques. In this latter case, a specific microbiota, phosphate accumulating organisms (PAOs), accumulates phosphate as polyphosphate. This molecule can be considered as an alternative phosphate source, and is directly extracted from wastewater generated by human activities. This review focuses on the techniques which can be applied to enrich and try to isolate these PAOs, and to detect the presence of polyphosphate in microbial cells. [less ▲]

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See detailModulation du stress oxydant : nouveaux concepts pour de nouvelles applications
PINCEMAIL, Joël ULg

Scientific conference (2016, May 31)

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See detailI Am Very Sorry Sir! Breaking Bad News to Customers
Delcourt, Cécile ULg; GREMLER, Dwayne; GREER, Dominique

Conference (2016, May 31)

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See detailStatics and dynamics of magnetocapillary bonds
Lagubeau, Guillaume; Grosjean, Galien ULg; Darras, Alexis ULg et al

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2016), 93

When ferromagnetic particles are suspended at an interface under magnetic fields, dipole-dipole interactions compete with capillary attraction. This combination of forces has recently given promising ... [more ▼]

When ferromagnetic particles are suspended at an interface under magnetic fields, dipole-dipole interactions compete with capillary attraction. This combination of forces has recently given promising results towards controllable self-assemblies as well as low-Reynolds-number swimming systems. The elementary unit of these assemblies is a pair of particles. Although equilibrium properties of this interaction are well described, the dynamics remain unclear. In this paper, the properties of magnetocapillary bonds are determined by probing them with magnetic perturbations. Two deformation modes are evidenced and discussed. These modes exhibit resonances whose frequencies can be detuned to generate nonreciprocal motion. A model is proposed that can become the basis for elaborate collective behaviors. [less ▲]

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See detailImpact of cord blood banking technologies on clinical outcome: a Eurocord/Cord Blood Committee (CTIWP), European Society for Blood and Marrow Transplantation and NetCord retrospective analysis
Saccardi, Riccardo; Tucunduva, Luciana; Ruggeri, Annalisa et al

in Transfusion (2016)

BACKGROUND Techniques for banking cord blood units (CBUs) as source for hematopoietic stem cell transplantation have been developed over the past 20 years, aimed to improve laboratory efficiency without ... [more ▼]

BACKGROUND Techniques for banking cord blood units (CBUs) as source for hematopoietic stem cell transplantation have been developed over the past 20 years, aimed to improve laboratory efficiency without altering the biologic properties of the graft. A large-scale, registry-based assessment of the impact of the banking variables on the clinical outcome is currently missing. STUDY DESIGN AND METHODS A total of 677 single cord blood transplants (CBTs) carried out for acute leukemia in complete remission in centers affiliated with the European Society for Blood and Marrow Transplantation were selected. An extensive set of data concerning CBU banking were collected and correlations with clinical outcome were assessed. Clinical endpoints were transplant-related mortality, engraftment, and graft-versus-host disease (GVHD). RESULTS The median time between collection and CBT was 4.1 years (range, 0.2-16.3 years). Volume reduction (VR) of CBUs before freezing was performed in 59.2% of available reports; in half of these the frozen volume was less than 30 mL. Cumulative incidences of neutrophil engraftment on Day 60, 100-day acute GVHD (II-IV), and 4-year chronic GVHD were 87, 29, and 21 ± 2%. The cumulative incidence of nonrelapse mortality (NRM) at 100 days and 4-year NRM were, respectively, 16 ± 2 and 30 ± 2%. Neither the variables related to banking procedures nor the interval between collection and CBT influenced the clinical outcome. CONCLUSION These findings indicate a satisfactory validation of the techniques associated with CBU VR across the banks. Cell viability assessment varied among the banks, suggesting that efforts to improve the standardization of CBU quality controls are needed. [less ▲]

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See detailDie Möglichkeiten und Herausforderungen für die Deutschsprachige Gemeinschaft bei der Gestaltung der ihr in der Sechsten Staatsreform übertragenen Zuständigkeiten
Behrendt, Christian ULg

Conference given outside the academic context (2016)

Conférence-débat organisé à Saint-Vith, centre culturel Triangel, 31 mai 2016

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See detailDraw Comics! A Very Brief Archeology of (Fake) Cartooning Ads
Crucifix, Benoît ULg

Article for general public (2016)

In this post, I try to retrace something of an archeology of ‘cartooning ads’ starting from the ACME Novelty Library and digging down to the ACME Drainage School.

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See detailIntegrated microfluidic device for gold nanoparticles synthesis
Emonds-Alt, Gauthier ULg; Malherbe, Cédric ULg; Monbaliu, Jean-Christophe ULg et al

Poster (2016, May 31)

In order to perform the analysis of organic pollutant in trace by Raman spectroscopy, it is necessary to develop SERS substrates, such as noble metal nanoparticles (NPs). The synthesis of gold or silver ... [more ▼]

In order to perform the analysis of organic pollutant in trace by Raman spectroscopy, it is necessary to develop SERS substrates, such as noble metal nanoparticles (NPs). The synthesis of gold or silver NPs is used for analytical applications. It is therefore important to precisely control the synthesis of these SERS substrates to achieve reproducible measurements. Microfluidics is a very attractive technology for the control of the synthesis parameters such as temperature, reaction time and mixing conditions which affect both the size and the morphology of NPs. The synthesis of gold or silver NPs in microreactor is a technique we are already developing in the laboratory. We develop a method for the continuous synthesis of gold and silver NPs in a segmented regime capillary microreactor. The residence time and temperature have a significant effect on the size of the NPs, enabling to prepare different sizes of NPs using the same microreactor and the same precursor solutions. [less ▲]

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See detailCapturing structure in IIBDGC samples
Chaichoompu, Kridsadakorn ULg

Scientific conference (2016, May 31)

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See detailStructural classification and characterization of heavy petroleum base oil hydrocarbons by GC×GC-HR-TOF/MS
Giri, Anupam ULg; Courtiade, Marion; Racaud, Amandine et al

Conference (2016, May 31)

Detailed reference viewed: 11 (1 ULg)