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See detailThe use of platelet-rich plasma (PRP) to treat chronic tendinopathies: a technical analysis
Kaux, Jean-François ULg; Emonds-Alt, Thibault ULg

in Platelets (in press)

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 while 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. [less ▲]

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See detailEmotional Phenomenology: Toward a Nonreductive Analysis
Dewalque, Arnaud ULg

in Midwest Studies in Philosophy (in press), 41

In this paper I want to create a presumption in favor of a nonreductive analysis of emotional phenomenology. The presumption relies on the claim that none of the nonemotional elements which are usually ... [more ▼]

In this paper I want to create a presumption in favor of a nonreductive analysis of emotional phenomenology. The presumption relies on the claim that none of the nonemotional elements which are usually regarded as constitutive of emotional phenomenology may reasonably be considered responsible for the evaluative character of the latter. In section 1 I suggest this is true of cognitive elements, arguing that so-called ‘evaluative’ judgments usually result from emotional, evaluative attitudes, and should not be conflated with them. In section 2 I argue the same holds true for conative attitudes (desires and acts of the will). And in section 3 I briefly mention some salient aspects of the version of nonreductive analysis I lean toward. [less ▲]

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See detailSystem-based approaches for structural optimization of flexible mechanisms
Tromme, Emmanuel; Held, Alexander; Duysinx, Pierre ULg et al

in Archives of Computational Methods in Engineering (in press)

This paper reviews the state-of-the-art methods to perform structural optimization of flexible mechanisms. These methods are based on a system-based approach, i.e. the formulation of the design problem ... [more ▼]

This paper reviews the state-of-the-art methods to perform structural optimization of flexible mechanisms. These methods are based on a system-based approach, i.e. the formulation of the design problem incorporates the time response of the mechanism that is obtained from a dynamic simulation of the flexible multibody system. The system-based approach aims at considering as precisely as possible the effects of nonlinear dynamic loading under various operating conditions. Also, the optimization process enhances most existing studies which are limited to (quasi-) static or frequency domain loading conditions. This paper briefly introduces flexible multibody system dynamics and structural optimization techniques. Afterwards, the two main methods, named the weakly and the fully coupled methods, that couple both disciplines are presented in details and the influence of the multibody system formalism is analyzed. The advantages and drawbacks of both methods are discussed and future possible research areas are mentioned. [less ▲]

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See detailOptimization of settling behavior for an efficient solvent-extraction process for bio-based components
Bednarz, Andreas; Scherübel, Peter; Spieß, Antje C. et al

in Chemical Engineering and Technology (in press)

Extraction is a downstream-process option in bio-based processes. Since the knowledge of phase-separation behavior is essential for designing efficient separation processes, this study investigates the ... [more ▼]

Extraction is a downstream-process option in bio-based processes. Since the knowledge of phase-separation behavior is essential for designing efficient separation processes, this study investigates the settling and coalescence behavior of bio-based extraction systems using a standard lab-scale settling cell. The influence of different buffer media as well as of E. coli cells on coalescence was determined for the reactive extraction of hexane-1.6-diamine with isostearic acid and D2EHPA using kerosene and oleyl alcohol as diluents. As a result, an increasing pH value of the buffer significantly increases settling time. The presence of E. coli cells hinders the phase separation of the investigated systems, in particular with dispersed organic phases. [less ▲]

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See detailA coupled electro-thermal Discontinuous Galerkin method
Homsi, Lina ULg; Geuzaine, Christophe ULg; Noels, Ludovic ULg

in Journal of Computational Physics (in press)

This paper presents a Discontinuous Galerkin scheme in order to solve the nonlinear elliptic partial differential equations of coupled electro-thermal problems. In this paper we discuss the fundamental ... [more ▼]

This paper presents a Discontinuous Galerkin scheme in order to solve the nonlinear elliptic partial differential equations of coupled electro-thermal problems. In this paper we discuss the fundamental equations for the transport of electricity and heat, in terms of macroscopic variables such as temperature and electric potential. A fully coupled nonlinear weak formulation for electro-thermal problems is developed based on continuum mechanics equations expressed in terms of energetically conjugated pair of fluxes and fields gradients. The weak form can thus be formulated as a Discontinuous Galerkin method. The existence and uniqueness of the weak form solution are proved. The numerical properties of the nonlinear elliptic problems i.e., consistency and stability, are demonstrated under specific conditions, i.e. use of high enough stabilization parameter and at least quadratic polynomial approximations. Moreover the prior error estimates in the H1-norm and in the L2-norm are shown to be optimal in the mesh size with the polynomial approximation degree. [less ▲]

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See detailThe miR-183/ItgA3 axis is a key regulator of prosensory area during early inner ear development
Van Den Ackerveken, Priscilla ULg; Mounier, Anaïs ULg; Huyghe, Aurélia et al

in Cell Death & Differentiation (in press)

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See detail"Lambertus pictor" in the Saint-Denis church accounts of 1533: new developments
Joly, Emmanuel ULg

in Flesh, Gold and Wood. The Saint Denis Altarpiece in Liège and the Question of Partial Paint Practises (in press)

The Saint-Denis altarpiece has been widely admired, commented and studied for a long time. Its conservation in the church, even after a new main altar in baroque style was placed in the choir, is an ... [more ▼]

The Saint-Denis altarpiece has been widely admired, commented and studied for a long time. Its conservation in the church, even after a new main altar in baroque style was placed in the choir, is an indication of the importance this work had acquired throughout time. Its painted wings were especially appreciated and were attributed to Lambert Lombard, Liège’s most renowned Renaissance painter, as early as the beginning of the 18th century. But this attribution has been discussed passionately, especially since the 1970’s. At the centre of these debate, we find a document dated 1533, discovered in 1958, naming a “Lambertum pictorem” working for Saint-Denis collegiate church. But this mention needs to be reconsidered and contextualised. This publication aims to present the content of this document and to dissect its meaning in the context of the making of the altarpiece, to which it has been related since its discovery. A new transcription will be provided and new archival material will be unveiled in order to shed a new light on this document as well as to give new paths to reconstruct the processes at work in the making of the altarpiece. [less ▲]

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See detailLa question de l’éducation : aiguillon des philosophies politiques. Castoriadis/Rancière.
Wustefeld, Sophie ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (in press)

La démocratie reste un thème chéri par la philosophie politique contemporaine, pour l’écart entre ses théories et ses pratiques, pour la distance critique que ses théories offrent vis-à-vis des régimes ... [more ▼]

La démocratie reste un thème chéri par la philosophie politique contemporaine, pour l’écart entre ses théories et ses pratiques, pour la distance critique que ses théories offrent vis-à-vis des régimes démocratiques et de leur évolution, mais aussi parce qu’elle est un objet perpétuel de dissensus entre philosophes, au sujet duquel toute prétention à la véridiction est suspendue à sa réalisation pratique. À ce titre, la transmission de la volonté démocratique est un topos houleux de la philosophie politique contemporaine. Cette question catalyse les concepts pivots des philosophies politiques, la leur poser permet de mieux saisir les enjeux rivaux derrière une terminologie commune à plusieurs auteurs. C’est dans cette démarche que je vous propose d’examiner en miroir les philosophies de Cornélius Castoriadis et de Jacques Rancière. De plus en plus nombreux, des commentateurs rapprochent leurs pensées , qui peuvent s’appuyer sur plusieurs points communs : un attachement au concept de démocratie brandit contre les régimes parlementaires, une opposition contemporaine (quoique depuis des héritages différents) aux thèses défendues par Althusser, et une proximité de sources d’inspirations : la philosophie, le marxisme, et la psychanalyse. Partant de la manière dont cette proximité s’exprime dans la disjonction que chacun opère entre démocratie et science, je tenterai de discerner comment les inflexions qu’ils impriment aux concepts de volonté et d’égalité sous la guise des enjeux de la transmission dessinent des horizons politiques distincts, et dénotent des compréhensions antithétiques – mais indécidables dans la théorie – de ce que peut être la démocratie. [less ▲]

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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 detailLes jubés dans les édifices religieux du Hainaut
Joly, Emmanuel ULg

in Hainaut. Terre musicale (XVIIe-XVIIIe siècles) (in press)

Définition du "jubé". Inventaire et typologie des jubés en Hainaut. Evolution de leur fonction avec une focalisation particulière sur leur fonction musicale.

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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 detailArticle 21(3) of the ICC Statute and 'Internationally Recognised Human Rights' as a Source of Mandatory Judicial Dialogue
Deprez, Christophe ULg

in Lobba, Paolo; Mariniello, Triestino (Eds.) Judicial Dialogue on Human Rights: The Practice of International Criminal Tribunals (in press)

It is a common view that a strict distinction should be maintained between human rights case law and human rights law proper. The authority of human rights norms would be general, while human rights ... [more ▼]

It is a common view that a strict distinction should be maintained between human rights case law and human rights law proper. The authority of human rights norms would be general, while human rights jurisprudence would only consist of the casuistic application of these norms to a specific case. This chapter seeks to nuance this view, with specific reference to the cross-fertilisation phenomenon before the International Criminal Court. It shows that, in its early practice, the permanent ICC has repeatedly relied on human rights case law, not because it was merely choosing to do so, but more particularly, because it considered the relevant findings to be binding as 'internationally recognised human rights' in the meaning of Article 21(3) of the Rome Statute. By focusing on these instances of mandatory reference to the practice of human rights bodies, this chapter also contributes to the existing literature on 'internationally recognised human rights', through an account of the ICC's own perspective on this crucial notion. [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 detailStudy of the chemical composition of essential oils and floral waters of Cymbopogon citratus (DC.) Stapf (Poaceae) from Senegal
Diop, Serigne Mbacké; Guèye, Momar Talla; Ndiaye, Ibrahima et al

in International Journal of Biological and Chemical Sciences (in press)

This work aimed to study the chemical composition of essential oils and floral waters of Cymbopogon citratus (DC.) Stapf (Poaceae) from Senegal. The plants were collected in two different localities ... [more ▼]

This work aimed to study the chemical composition of essential oils and floral waters of Cymbopogon citratus (DC.) Stapf (Poaceae) from Senegal. The plants were collected in two different localities, Dakar and Kaolack. The extracts were obtained by steam distillation from both fresh and dried plants and analyses carried out by GC/FID and GC/MS. Oils from Dakar were dominated by geranial which represented 46.0-43.9%, neral 31.8-31.0%, myrcene 10.8-11.7% and geraniol 2.7-4.2% in the fresh and dried plants, respectively. Their floral waters contained mainly 44.6-41.4% geranial, 39.7-35.6% neral and 8.8-13.2% geraniol. The oils from Kaolack were characterized by geranial which constituted 49.5-44.5%, neral 33.3-31.2%, myrcene 7.2-9.6% and geraniol 4.3-6.1% in the fresh and dried plants, respectively. In their floral waters, it is identified 42.8-33.6% geranial, 38.4-27.6% neral and 12.5-24.5% geraniol. This original study revealed that both oils and floral waters of C. citratus from Senegal are characterized by geranial and neral whose repellent properties against mosquitoes are known. [less ▲]

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See detail« Du définitif sur du provisoire… » : Psychopathologie et tatouage
Englebert, Jérôme ULg; Follet, Valérie

in Feneuil, Anthony; Krtolica, Igor (Eds.) L’expérience de l’éternité : Philosophie, clinique, mystique (in press)

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See detailThe Gravity of International Crimes as a Challenge to the (Full) Protection of Human Rights before International Criminal Tribunals? A Strasbourg Perspective
Deprez, Christophe ULg

in Nordic Journal of International Law (in press)

While it goes undisputed that international criminal tribunals (ICTs) are, in general terms, bound to respect human rights standards, there is no consensus on whether their obligations should be identical ... [more ▼]

While it goes undisputed that international criminal tribunals (ICTs) are, in general terms, bound to respect human rights standards, there is no consensus on whether their obligations should be identical in scope to those of national criminal tribunals. Most commentators seem to value the idea of equality in protection for international and domestic defendants alike. Yet, according to others, the human rights obligations of ICTs should be contextualised, that is, adapted to the specificities of international justice – and most critically to the gravity of international crimes. This article seeks to shed some light on this debate. It does so, in particular, by pointing out the intrinsic flexibility of human rights, and by drawing on the practice of the European Court of Human Rights with respect to gravity-based contextualism. [less ▲]

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See detailLa Cour pénale internationale à l'épreuve du droit à la liberté
Deprez, Christophe ULg

Book published by Anthemis (in press)

Cet ouvrage procède d’une prémisse bien connue : le droit pénal, s’il contribue au maintien des droits essentiels de chacun, implique en retour l’exercice d’un certain pouvoir de contrainte sur les ... [more ▼]

Cet ouvrage procède d’une prémisse bien connue : le droit pénal, s’il contribue au maintien des droits essentiels de chacun, implique en retour l’exercice d’un certain pouvoir de contrainte sur les individus, et constitue ainsi un danger à l’égard de ces mêmes droits et libertés. La justice pénale internationale n’est, pas plus que les tribunaux nationaux, épargnée par ce « paradoxe pénal ». C’est cette conviction qui a inspiré le présent ouvrage. Son ambition est de mettre l’action de la Cour pénale internationale à l’épreuve de l’exigence de liberté. Le droit et la pratique de la Cour pénale internationale y sont ainsi successivement confrontés à sept applications concrètes de cette garantie essentielle : le droit d’être informé des raisons de sa privation de liberté, le droit d’être présenté à un juge, le droit de contester le bien-fondé de sa privation de liberté, le droit à la liberté stricto sensu, le droit d’être libéré pour raisons humanitaires, le droit d’être jugé rapidement ou libéré au cours de la procédure et, enfin, le droit à une réparation appropriée. [less ▲]

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See detailRome Statute of the International Criminal Court
Deprez, Christophe ULg

in d'Aspremont, Jean; Scobbie, Ian (Eds.) Oxford Database on International Organizations (in press)

This note discusses the background, content and overall impact on the 'common law' of international organizations of the Rome Statute of the International Criminal Court.

Detailed reference viewed: 24 (1 ULg)