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See detailVoice use among music theory teachers: A voice dosimetry and self-assessment study
Schiller, Isabel ULg; Morsomme, Dominique ULg; Remacle, Angélique ULg

in Journal of Voice (in press)

Objectives: (1) To investigate music theory teachers’ professional and extra-professional vocal loading and background noise exposure, (2) to determine the correlation between vocal loading and background ... [more ▼]

Objectives: (1) To investigate music theory teachers’ professional and extra-professional vocal loading and background noise exposure, (2) to determine the correlation between vocal loading and background noise, and (3) to determine the correlation between vocal loading and self-evaluation data. Methods: Using voice dosimetry, 13 music theory teachers were monitored for one workweek. Parameters analysed were voice SPL, F0, phonation time, vocal loading index (VLI) and noise SPL. Spearman’s correlation was used to correlate vocal loading parameters (voice SPL, F0 and phonation time) and noise SPL. Each day, subjects self-assessed their voice using visual analogue scales. VLI and self-evaluation data were correlated using Spearman’s correlation. Results: Vocal loading parameters and noise SPL were significantly higher in the professional than in the extra-professional environment. Voice SPL, phonation time and females’ F0 correlated positively with noise SPL. VLI correlated with self-assessed voice quality, vocal fatigue and amount of singing and speaking voice produced. Conclusions: Teaching music theory is a profession with high vocal demands. More background noise is associated with increased vocal loading and may indirectly increase the risk for voice disorders. Correlations between VLI and self-assessments suggest that these teachers are well-aware of their vocal demands and feel their effect on voice quality and vocal fatigue. Visual analogue scales seem to represent a useful tool for subjective vocal loading assessment and associated symptoms in these professional voice users. [less ▲]

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See detailCarte géologique de la wallonie à l'échelle 1:25 000. Notice explicative. Huy-Nandrin n°48/3-4
Mottequin, Bernard ULg; Marion, Jean-Marc ULg

Book published by SPW/ Editions - Révision et 2ème édition (in press)

New geological map of Wallonia published at the scale of 1/25.000 (field work at the scale of 1/10.000), based on a new field work and using previous scientific data produced, since the first edition ... [more ▼]

New geological map of Wallonia published at the scale of 1/25.000 (field work at the scale of 1/10.000), based on a new field work and using previous scientific data produced, since the first edition published in 1898 (G. Dewalque, H. Forir, M. Lohest, C. Malaise, Ch. de la Vallée Poussin & A. Renard ) at the scale of 1/40.000 by the "Commission Géologique de Belgique" and the second one, published in 1959 (Asselberghs & Geukens) at the scale of 1/40.000 by the Geological Survey of Belgium. [less ▲]

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See detailLouveigné-Spa n°49/3-4. Carte géologique de la Wallonie à l'échelle du 1:25.000. Notice explicative
Marion, Jean-Marc ULg; Geukens, Fernand; Lamberty, Pauline ULg et al

Book published by SPW/Editions, Cartes - Révision et 3ème édition complète (in press)

Manuscript submitted for reviewing (2017/03); leaflet of the new geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using previous scientific data produced since ... [more ▼]

Manuscript submitted for reviewing (2017/03); leaflet of the new geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using previous scientific data produced since the previous editions, in 1898 (at the scale of 1/40.000, by Gustave Dewalque) and the second one, in 1958 (at the scale of 1/25.000 by Paul Fourmarier). [less ▲]

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See detailCarte géologique de Wallonie. Louveigné-Spa n°49/3-4
Marion, Jean-Marc ULg; Geukens, Fernand; Lamberty, Pauline ULg et al

Cartographic material (in press)

New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using previous scientific data produced since the previous editions, in 1898 (at the scale of 1/40.000, by ... [more ▼]

New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using previous scientific data produced since the previous editions, in 1898 (at the scale of 1/40.000, by Gustave Dewalque) and the second one, in 1958 (at the scale of 1/25.000 by Paul Fourmarier). [less ▲]

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See detailHarzé - La Gleize. Carte géologique de la Wallonie. Cartes.
Lamberty, Pauline ULg; Mottequin, Bernard; Geukens, Fernand et al

Cartographic material (in press)

New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using previous scientific data produced, since the first edition published in 1899 (Gustave Dewalque) at ... [more ▼]

New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using previous scientific data produced, since the first edition published in 1899 (Gustave Dewalque) at the scale of 1/40.000 by the "Commission Géologique de Belgique" and the second one, published in 1959 (Asselberghs & Geukens) at the scale of 1/40.000 by the Geological Survey of Belgium. [less ▲]

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See detailMind-wandering and self-referential thought
D'Argembeau, Arnaud ULg

in The Oxford Handbook of Spontaneous Thought (in press)

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See detailStimmstörungen bei Lehrkräften im Vorbereitungsdienst
Schiller, Isabel ULg

in Hannken-Illjes, Kati (Ed.) Sprache und Sprechen (in press)

Lehrer weisen ein erhöhtes Risiko auf, Stimmstörungen zu entwickeln. Sogar Lehramtsstudierende sind bereits zu etwa 20% betroffen, obwohl die stimmlichen Anforderungen während des Studiums noch gering ... [more ▼]

Lehrer weisen ein erhöhtes Risiko auf, Stimmstörungen zu entwickeln. Sogar Lehramtsstudierende sind bereits zu etwa 20% betroffen, obwohl die stimmlichen Anforderungen während des Studiums noch gering ausfallen (vgl. Ettehad 2004). Nur unzureichend wurde bislang die Stimme von Lehrkräften im Vorbereitungsdienst (LiV) untersucht. Gleichwohl ist der Vorbereitungsdienst ein kritischer Zeitraum. LiV unterrichten etwa 12 Stunden pro Woche und stehen unter hohem Leistungsdruck. Dies kann sich potentiell negativ auf die Stimme auswirken. Ziel der Studie war es demnach, die Prävalenz und Art von Stimmstörungen bei Lehrkräften im Vorbereitungsdienst zu bestimmen. Weiterhin sollten Zusammenhänge zwischen subjektiven und objektiven stimmbezogenen Daten untersucht werden. 73 LiV nahmen an der Studie teil, die sich aus einem selbstkonzipierten Fragebogen und der Erhebung objektiver Daten zusammensetzt. Probanden, die im Fragebogen angaben, während des Vorbereitungsdienstes bereits zwei oder mehr Symptome einer Stimmstörung wahrgenommen zu haben, wurden als stimmgestört klassifiziert. Anhand objektiver Messungen wurden zudem die Variablen maximale Tonhaltedauer (THD), Jitter und Shimmer erhoben und mit den subjektiven Daten in Beziehung gesetzt. Bei 37% der Probanden ergaben sich Hinweise auf das Vorliegen einer Stimmstörung. Besonders häufig wurden die Symptome Rauigkeit, Räusperzwang oder Lautstärkeprobleme genannt. Es bestand kein signifikanter Zusammenhang zwischen den subjektiven und den objektiven Daten. Die Ergebnisse deuten darauf hin, dass angehende Lehrkräfte im Zeitraum des Vorbereitungsdienstes vermehrt zu Stimmproblemen neigen. Dies unterstreicht die Notwendigkeit von interventiven Maßnahmen, die bereits im Studium zum Tragen kommen sollten. [less ▲]

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See detailPotential demal exposure of florists to fungicide residues on flowers and risk assessment
Toumi; Joly, L.; Vleminckx, C. et al

in Communications in Agricultural and Applied Biological Sciences (in press)

Flowers are susceptible to many pests and diseases. Therefore, they can be sprayed several times during their growth considering that no MRL are set for flow-ers. High levels of pesticide residues ... [more ▼]

Flowers are susceptible to many pests and diseases. Therefore, they can be sprayed several times during their growth considering that no MRL are set for flow-ers. High levels of pesticide residues potentially expose daily the florists who han-dle cut flowers and possibly could endanger their health. A study was carried out to evaluate the risk for florists exposed to fungicide residues during normal profes-sional tasks. Cotton gloves were distributed to 20 florists (two pairs to each florist) and worn during two consecutive half days during normal professional tasks (from min 2 hours to max 3 hours/day) to measure their potential dermal exposure (PDE). Samples were analyzed with a multi-residue (QuEChERS) method validated by a laboratory accredited for pesticide residues and with a combination of gas and liquid chromatography tandem mass spectrometry. It appears from the results that a total of 54 fungicides with different toxicity classes were detected on cotton gloves. An average of 15.53 mg/kg fungicide residues per glove sample was meas-ured. Six of 54 are suspected of causing cancer after prolonged or repeated expo-sure. Boscalid was both the active substance for which the highest maximum and average concentrations (26.21 and 3.47 mg/kg, respectively). Famoxadone had the most critical PDE (156% AOEL for the maximum concentration). As a consequence, this study leads to conclude that Belgian florists, who worked for several years and handled a large number of flowers contaminated by high concentrations of pesti-cide residues, are exposed daily with a potential effect on their health. This sug-gests that safety standards should be set for residue levels on cut flowers. [less ▲]

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See detailRisk assessment for small farmers exposed to plant protection products in the Niger River valley
Massalatchi Illyassou, Karimoun; Adamou, R.; Schiffers, Bruno ULg

in Communications in Agricultural and Applied Biological Sciences (in press)

Plant protection products play a very important role in agriculture. However, their misuse can have serious negative impacts both on human health and environment. A study was carried out to identify the ... [more ▼]

Plant protection products play a very important role in agriculture. However, their misuse can have serious negative impacts both on human health and environment. A study was carried out to identify the plant protection products used in the Niger River valley and to observe the local pesticide management practices. Ten active substances were identified as the most used chemicals by farmers. Their toxicological properties were characterized and their respective Potential Dermal Exposures (PDE) was evaluated in order to assess the risk level for the local small growers. The UK Predictive Operator Exposure Model was used to quantify the PDE during mixing/loading and application according to the local practices. The survey shows that the most common active substances are organophosphate or pyrethroids insecticides. In addition, some other prohibited and counterfeit pesticides cocktails are also used. All active substances used in Niger River valley are highly toxic. When sprayed without personal protective equipment (PPE) they could induce significant harmful impacts on the human health after exposure. The predictive exposure levels vary from 0.0013 mg/kg bw/day to 0.4125 mg/kg bw/day, several times higher the Acceptable Operator Exposure Level (AOEL) for all actives substances. The survey also revealed that 76% of operators do not use any PPE during mixing/loading or spraying. Other bad practices observed in study area can increase the exposure of operators. Moreover, local consumers could also be exposed through intake of pesticide residues on harvested products. [less ▲]

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See detailAnti-Salmonella activity and probiotic trends of Kluyveromyces marxianus S-2-05 and Kluyveromyces lactis S-3-05 isolated from a French cheese named "Tomme d'Orchies"
Ceugniez, Alexandre; Coucheney, Françoise; Jacques, Philippe et al

in Research in Microbiology (in press)

Kluyveromyces marxianus S-2-05 and Kluyveromyces lactis S-3-05 were recently isolated from a traditional French cheese, Tomme d'Orchies, and characterized here for their advantages using a different ... [more ▼]

Kluyveromyces marxianus S-2-05 and Kluyveromyces lactis S-3-05 were recently isolated from a traditional French cheese, Tomme d'Orchies, and characterized here for their advantages using a different application perspective. First, we established their anti-Salmonella activity and downregulation of the virulence sopD gene of Salmonella enterica subsp. enterica serovar Typhimurium, mainly in the presence of K. marxianus S-2-05. In addition to their antagonism, these non-Saccharomyces yeasts were able to survive under conditions mimicking the gastrointestinal environment and to form biofilms on an abiotic device such as polystyrene. These strains also displayed highly hydrophilic cell wall surfaces properties and capacity for adhesion to intestinal Caco-2 cells, thus enhancing their potential as probiotic strains. [less ▲]

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See detailConstant 2-labellings and an application to (r,a,b)-covering codes
Vandomme, Elise ULg; Gravier, Sylvain

in Discussiones Mathematicae Graph Theory (in press)

We introduce the concept of constant 2-labelling of a vertex-weighted graph and show how it can be used to obtain perfect weighted coverings. Roughly speaking, a constant 2-labelling of a vertex-weighted ... [more ▼]

We introduce the concept of constant 2-labelling of a vertex-weighted graph and show how it can be used to obtain perfect weighted coverings. Roughly speaking, a constant 2-labelling of a vertex-weighted graph is a black and white colouring of its vertex set which preserves the sum of the weights of black vertices under some automorphisms. We study constant 2-labellings on four types of vertex-weighted cycles. Our results on cycles allow us to determine (r, a, b)-codes in Z^2 whenever |a−b|>4, r>1 and we give the precise values of a and b. This is a refinement of Axenovich’s theorem proved in 2003. [less ▲]

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See detailAutomated multimodal volume registration based on supervised 3D anatomical landmark detection
Vandaele, Rémy ULg; LALLEMAND, François ULg; MARTINIVE, Philippe ULg et al

in SCITEPRESS Digital Library (in press)

We propose a new method for automatic 3D multimodal registration based on anatomical landmark detection. Landmark detectors are learned independantly in the two imaging modalities using Extremely ... [more ▼]

We propose a new method for automatic 3D multimodal registration based on anatomical landmark detection. Landmark detectors are learned independantly in the two imaging modalities using Extremely Randomized Trees and multi-resolution voxel windows. A least-squares fitting algorithm is then used for rigid registration based on the landmark positions as predicted by these detectors in the two imaging modalities. Experiments are carried out with this method on a dataset of pelvis CT and CBCT scans related to 45 patients. On this dataset, our fully automatic approach yields results very competitive with respect to a manually assisted state-of-the-art rigid registration algorithm. [less ▲]

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See detailSTARECAPMED, des indices pour La Méditerranée
Leduc, Michèle; Abadie, Arnaud; Donnay, Annick et al

in Actes du colloque Carhamb'ar 2017 (in press)

Le projet STARECAPMED (STAtion of Reference and rEsearch on Change of local and global Anthropogenic Pressures on Mediterranean Ecosystems Drifts) a pour objectif (i) d’améliorer la compréhension du ... [more ▼]

Le projet STARECAPMED (STAtion of Reference and rEsearch on Change of local and global Anthropogenic Pressures on Mediterranean Ecosystems Drifts) a pour objectif (i) d’améliorer la compréhension du fonctionnement des différents écosystèmes marins côtiers présents en Méditerranée et (ii) de décrire l’influence des activités humaines sur les processus qui gouvernent ce fonctionnement. La baie de Calvi, par sa situation exceptionnelle, est un site de référence de la Directive Européenne Cadre sur l’Eau (DCE), du monitoring de l’eutrophisation et de la contamination par les éléments traces. La Station de recherches océanographiques STARESO, implantée dans la baie depuis près de 50 ans, possède un accès unique à la mer et de nombreuses facilités logistiques. Elle a développé au fil du temps une expertise scientifique reposant notamment sur l’acquisition de longues séries temporelles de données environnementales. Ensemble, Baie et Station s’intègrent en un site atelier dédié à l’évaluation de l’état de santé des écosystèmes marins côtiers de Méditerranée Nord-Occidentale. En particulier, différents indices et indicateurs y sont développés en collaboration avec de nombreux laboratoires partenaires. Ainsi, nous avons développé, d’une part, une version non destructive de l’indice PREI (Posidonia Rapid Easy Index) d’évaluation de la qualité des eaux côtières reposant sur le suivi des herbiers à Posidonia oceanica, et d’autre part, deux indices d’évaluation de l’impact des ancrages, puis testé   l’indice EBQI (Ecosystem Based Quality Index), une approche sur la diversité écologique. Les indices TEPI (Trace Element Pollution Index) et TESVI (Trace Element Spatial Variation Index) permettent d’évaluer la contamination par les éléments traces. Le BeMSI (BEnthic Methodology Simplification) est un nouvel indicateur de la qualité du milieu défini à partir de la composition des peuplements macrobenthiques des substrats meubles et plus généralement, l’indice LIMA traduit l’attrait paysager et la richesse patrimoniale du benthos méditerranéen entre 0 et –40 m. Quant à l’indice ICAR (Indice paysager CAulerpa Racemosa), il permet d’évaluer les niveaux de colonisation par l’algue invasive Caulerpa cylindracea. Enfin, une approche innovante reposant sur l’enregistrement des sons permet d’évaluer la qualité du milieu à partir d’un paysage acoustique sous-marin. En conclusion, le développement et l’application combinée de ces différents indices et indicateurs développés dans le cadre du programme pluridisciplinaire STARECAPMED fournissent une estimation globale des états du milieu côtier méditerranéen à différents niveaux d’organisation, depuis l’espèce jusqu’à l’écosystème. De plus, leur mise en œuvre dans ce même site atelier privilégié permet de les confronter, de les ajuster et de les intercalibrer pour à terme les proposer aux gestionnaires du milieu côtier. [less ▲]

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See detailÉVOLUTION DE LA TENEUR EN EAU LE LONG D’UNE TOPOSEQUENCE FORESTIERE ARGILO-LIMONEUSE
Deraedt, Deborah ULg; Colinet, Gilles ULg; Degré, Aurore ULg

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 ▲]

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See detailPrediction-focused approaches: an opportunity for hydrology
Hermans, Thomas ULg

in Groundwater (in press)

Our ability to predict the evolution of complex hydrological system is fundamental. For decades, such problems have been solved by calibrating a conceptual model of the subsurface to fit data ... [more ▼]

Our ability to predict the evolution of complex hydrological system is fundamental. For decades, such problems have been solved by calibrating a conceptual model of the subsurface to fit data. Unfortunately, model calibration does not allow a realistic uncertainty quantification, whereas stochastic inversion is often computationally prohibitive. In this contribution, prediction-focused approaches (PFAs) are introduced to overcome those main shortcomings. This new paradigm focused on generating predictions directly from the data instead of generating models. A group of prior models is used to generate the data and the prediction in order to derive a direct relationship between both types of variables. The advantages, limitations and research perspectives are discussed. [less ▲]

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See detailVocal change patterns during a teaching day: Inter- and intra-subject variability
Remacle, Angélique ULg; Garnier, Maëva; Gerber, Silvain et al

in Journal of Voice (in press)

Objectives: To describe the mean voice changes of 22 female teachers during a typical workday, examine the inter- and intra-subject variability, and establish a typology of different voice patterns during ... [more ▼]

Objectives: To describe the mean voice changes of 22 female teachers during a typical workday, examine the inter- and intra-subject variability, and establish a typology of different voice patterns during the workday. Methods: For each participant, fundamental frequency (F0), harmonics-to-noise ratio (HNR), jitter, and shimmer were measured on sustained vowels at the beginning and at the end of the workday, at three different times during the school year. Results: The group mean pattern showed significant increases in F0 and HNR during the workday and significant decreases in jitter and shimmer. However, considerable inter- and intra-subject variability was observed. Based on the variation in the acoustic parameters during the workday, three different voice patterns were identified. The first is characterized by a greater F0 increase during the day, interpreted as a common, appropriate adaptation to vocal load. The second is characterized by a greater increase in HNR during the day and greater decreases in jitter and shimmer, interpreted as hyperfunctional voice production. The third is characterized by greater decreases in F0 and HNR and greater increases in jitter and shimmer, suggesting acute inflammation or muscle fatigue following the workday. Conclusions: The observed variety of vocal patterns during the workday emphasizes the need to study this phenomenon individually and target different types of behaviors in order to develop tailored prevention and treatment methods. [less ▲]

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See detailCarte géologique de la Wallonie à l'échelle 1:25.000. Stavelot-Malmedy n°50/5-6. Notice explicative.
Lamberty, Pauline ULg; Geukens, Fernand; Marion, Jean-Marc ULg

Book published by SPW/ Editions, Cartes - Révision et 3ème édition (in press)

New geological map of Wallonia that will be published at the scale of 1/25.000, based on a new field work and using previous scientific data produced, since the first edition published in 1899 (Gustave ... [more ▼]

New geological map of Wallonia that will be published at the scale of 1/25.000, based on a new field work and using previous scientific data produced, since the first edition published in 1899 (Gustave Dewalque) at the scale of 1/40,000 by the "Commission Géologique de Belgique" and the second one, published in 1963 (Fernand Geukens) at the scale of 1/25,000 by the Geological Survey of Belgium. [less ▲]

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See detailEpistémologie de la théorie du complot
Jamin, Jérôme ULg

in Cahiers de l'Éducation Permanente (Les) (in press)

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See detailLe populisme aux Etats-Unis
Jamin, Jérôme ULg

in Revue de la Faculté de Droit de l'Université de Liège (in press)

Detailed reference viewed: 77 (14 ULg)