References of "Scientific journals"      in Complete repository Arts & humanities   Archaeology   Art & art history   Classical & oriental studies   History   Languages & linguistics   Literature   Performing arts   Philosophy & ethics   Religion & theology   Multidisciplinary, general & others Business & economic sciences   Accounting & auditing   Production, distribution & supply chain management   Finance   General management & organizational theory   Human resources management   Management information systems   Marketing   Strategy & innovation   Quantitative methods in economics & management   General economics & history of economic thought   International economics   Macroeconomics & monetary economics   Microeconomics   Economic systems & public economics   Social economics   Special economic topics (health, labor, transportation…)   Multidisciplinary, general & others Engineering, computing & technology   Aerospace & aeronautics engineering   Architecture   Chemical engineering   Civil engineering   Computer science   Electrical & electronics engineering   Energy   Geological, petroleum & mining engineering   Materials science & engineering   Mechanical engineering   Multidisciplinary, general & others Human health sciences   Alternative medicine   Anesthesia & intensive care   Cardiovascular & respiratory systems   Dentistry & oral medicine   Dermatology   Endocrinology, metabolism & nutrition   Forensic medicine   Gastroenterology & hepatology   General & internal medicine   Geriatrics   Hematology   Immunology & infectious disease   Laboratory medicine & medical technology   Neurology   Oncology   Ophthalmology   Orthopedics, rehabilitation & sports medicine   Otolaryngology   Pediatrics   Pharmacy, pharmacology & toxicology   Psychiatry   Public health, health care sciences & services   Radiology, nuclear medicine & imaging   Reproductive medicine (gynecology, andrology, obstetrics)   Rheumatology   Surgery   Urology & nephrology   Multidisciplinary, general & others Law, criminology & political science   Civil law   Criminal law & procedure   Criminology   Economic & commercial law   European & international law   Judicial law   Metalaw, Roman law, history of law & comparative law   Political science, public administration & international relations   Public law   Social law   Tax law   Multidisciplinary, general & others Life sciences   Agriculture & agronomy   Anatomy (cytology, histology, embryology...) & physiology   Animal production & animal husbandry   Aquatic sciences & oceanology   Biochemistry, biophysics & molecular biology   Biotechnology   Entomology & pest control   Environmental sciences & ecology   Food science   Genetics & genetic processes   Microbiology   Phytobiology (plant sciences, forestry, mycology...)   Veterinary medicine & animal health   Zoology   Multidisciplinary, general & others Physical, chemical, mathematical & earth Sciences   Chemistry   Earth sciences & physical geography   Mathematics   Physics   Space science, astronomy & astrophysics   Multidisciplinary, general & others Social & behavioral sciences, psychology   Animal psychology, ethology & psychobiology   Anthropology   Communication & mass media   Education & instruction   Human geography & demography   Library & information sciences   Neurosciences & behavior   Regional & inter-regional studies   Social work & social policy   Sociology & social sciences   Social, industrial & organizational psychology   Theoretical & cognitive psychology   Treatment & clinical psychology   Multidisciplinary, general & others     Showing results 101 to 200 of 43140     1 2 3 4 5 6 7     Les modifications du fonctionnement exécutif dans le vieillissement normalCollette, Fabienne ; Salmon, Eric in Psychologie Française (in press)Il est maintenu bien reconnu que le vieillissement cognitif est associé à une diminution des capacités exécutives. Toutefois, si des déficits sont effectivement observés au sein des différentes fonctions ... [more ▼]Il est maintenu bien reconnu que le vieillissement cognitif est associé à une diminution des capacités exécutives. Toutefois, si des déficits sont effectivement observés au sein des différentes fonctions, des dissociations entre performances préservées/altérées ont également été observées au sein de chacune. Dans cette revue de question, nous détaillerons les effets du vieillissement dans les fonctions de mise à jour, flexibilité, inhibition et coordination de tâches doubles, ainsi que les modifications au sein des réseaux cérébraux associés à ces processus. Nous discuterons également l'influence des capacités attentionnelles, des ressources en mémoire de travail et de certaines caractéristiques génétiques sur ces modifications. [less ▲]Detailed reference viewed: 69 (12 ULg) Child labour, Agency and Family dynamics: The Case of Mining in Katanga (DRC)Andre, Géraldine ; Godin, Mariein Childhood (in press)In the last three decades, the development of the artisanal and small-scale mining (ASM) sector has been increasing in the Democratic Republic of Congo (DRC), bringing more and more urban families into ... [more ▼]In the last three decades, the development of the artisanal and small-scale mining (ASM) sector has been increasing in the Democratic Republic of Congo (DRC), bringing more and more urban families into this flourishing business sector, and among them, children. At first glance, one could see children in the mining sector mainly as victims entangled in the flows of raw materials of unbridled capitalism. But this paper aims to look at the often unconceivable, and as a result neglected, social agency of children even when they are involved in stigmatized and prohibited types of child labour. To do so, it relies on the results of a socio-anthropological collective research project on children’s mining activities which was carried out in a small locality called La Ruashi in the city of Lubumbashi (Province of Katanga). The article aims to provide a more comprehensive understanding of what is often normatively only labelled as ‘child labour’ by looking at different spheres of social relations within which children are embedded. Examining the set of social interactions that children have with their families, the broader community and their ‘peers’, several ‘family portraits’ are offered, highlighting a heterogeneity of social interpretations regarding this ‘new’ form of child work. It will be shown that for families from middle-class background, this kind of work is often socially disruptive, at the forefront of inter-generational conflict. As for families from lower classes, social changes induced by children’s mining activities are often better incorporated into the family habitus. Common social changes encountered in all families irrespective of class belonging will also be portrayed, showing the transversal societal impact these ‘new’ forms of child economic activities can provoke at a micro level. [less ▲]Detailed reference viewed: 25 (7 ULg) Clinical pattern characterisation of cattle naturally infected by BTV-8 - Clinical characterisation of BTV-8 infected cattleZanella, G; Martinelle, Ludovic ; Guyot, Hugues et alin Transboundary and Emerging Diseases (in press)Detailed reference viewed: 32 (12 ULg) Chemical soil factors influencing plant assemblages along copper-cobalt gradients: implications for conservation and restorationSeleck, Maxime ; Bizoux, Jean-Philippe ; Colinet, Gilles et alin Plant and Soil (in press)Aims Define the chemical factors structuring plant communities of three copper-cobalt outcrops (Tenke-Fungurume, Katangan Copperbelt, D. R. Congo) presenting extreme gradients. Methods To discriminate ... [more ▼]Aims Define the chemical factors structuring plant communities of three copper-cobalt outcrops (Tenke-Fungurume, Katangan Copperbelt, D. R. Congo) presenting extreme gradients. Methods To discriminate plant communities, 172 vegetation records of all species percentage cover were classified based on NMDS and the Calinski criterion. Soil samples were analyzed for 13 chemical factors and means compared among communities with ANOVA. Partial canonical correspondence analysis (pCCA) was used to determine amount of variation explained individually by each factor and site effect. Results Seven communities were identified. Six of the studied communities were related to distinct sites. Site effect (6.0 % of global inertia) was identified as the most important factor related to plant communities’ variation followed by Cu (5.5 %), pH (3.6 %) and Co (3.5 %). Unique contribution of site effect (3.8 %) was higher than that of Cu (1.1 %) and Co (1.0 %). Conclusions In restoration, not only Cu and Co contents will be important to maintain vegetation diversity, attention should also be given to co-varying factors potentially limiting toxicity of metals: pH, organic matter, Ca and Mn. Physical parameters were also identified as important in the creation of adequate conditions for diverse communities. Further studies should focus on the effect of physical parameters and geology. [less ▲]Detailed reference viewed: 15 (5 ULg) Le rôle de la perception de soi comme lecteur dans le développement de la compétence en lectureSchillings, Patricia ; Dupont, Virginie; Neuberg, France et alin Mesure et Evaluation en Education [=MEE] (in press)Detailed reference viewed: 25 (9 ULg) The Childhood Executive Function Inventory (CHEXI): Confirmatory Factor Analyses and Cross-Cultural Clinical Validity in a Sample of 8- to 11-Year-Old ChildrenCatale, Corinne ; Meulemans, Thierry ; Thorell, Lisa B.in Journal of Attention Disorders (in press)The Childhood Executive Functioning Inventory (CHEXI) is a new rating instrument for executive functioning developed by Thorell and Nyberg (2008). Through exploratory factor analyses, this inventory has ... [more ▼]The Childhood Executive Functioning Inventory (CHEXI) is a new rating instrument for executive functioning developed by Thorell and Nyberg (2008). Through exploratory factor analyses, this inventory has been shown to tap into working memory and inhibition-related behaviors in young children. In this study, we present the psychometric characteristics of the French adaptation of the CHEXI in 8- to 11-year-old children. In addition, we explore the cross-cultural validity of the CHEXI in discriminating between children with ADHD and normally developing children in two culturally different samples (Belgian and Swedish). Confirmatory factor analyses replicated the two-factor solution, referred to as inhibition and working memory, that was identified in the original study with Swedish children. Supplementary analyses indicated that both subscales have good psychometric properties. From a clinical point of view, the CHEXI was found to discriminate, with high sensitivity and specificity, between children with ADHD and normally developing controls in both cultural samples. Cross-cultural clinical implications are discussed. [less ▲]Detailed reference viewed: 47 (9 ULg) Accuracy of asymptotic standard errors of the maximum and weighted likelihood estimators of proficiency levels with short testsMagis, David in Applied Psychological Measurement (in press)The maximum likelihood (ML) and the weighted likelihood (WL) estimators are commonly used to obtain proficiency level estimates with pre-calibrated item parameters. Both estimators have the same ... [more ▼]The maximum likelihood (ML) and the weighted likelihood (WL) estimators are commonly used to obtain proficiency level estimates with pre-calibrated item parameters. Both estimators have the same asymptotic standard error (ASE) that can be easily derived from the expected information function of the test. However, the accuracy of this asymptotic formula is uncertain with short tests when only a few items are administered. The purpose of this paper is to compare the ASE of these estimators to their exact values, evaluated at the proficiency level estimates. The exact SE is computed by generating the full exact sample distribution of the estimators, so its practical feasibility is limited to small tests (except under the Rasch model). A simulation study was conducted to compare the ASE and the exact SE of the ML and WL estimators, to the “true” SE (i.e., computed as the exact SE with the true proficiency levels). It is concluded that with small tests, the exact SEs are less biased and return smaller root mean squared error values than the asymptotic SEs, while as expected the two estimators return similar results with longer tests. [less ▲]Detailed reference viewed: 18 (4 ULg) MOA-2010-BLG-328Lb: a sub-Neptune orbiting very late M dwarf ?Furusawa, K.; Udalski, A.; Sumi, T. et alin Astrophysical Journal (in press)We analyze the planetary microlensing event MOA-2010-BLG-328. The best fit yields host and planetary masses of Mh = 0.11+/-0.01 M_{sun} and Mp = 9.2+/-2.2M_Earth, corresponding to a very late M dwarf and ... [more ▼]We analyze the planetary microlensing event MOA-2010-BLG-328. The best fit yields host and planetary masses of Mh = 0.11+/-0.01 M_{sun} and Mp = 9.2+/-2.2M_Earth, corresponding to a very late M dwarf and sub-Neptune-mass planet, respectively. The system lies at DL = 0.81 +/- 0.10 kpc with projected separation r = 0.92 +/- 0.16 AU. Because of the host's a-priori-unlikely close distance, as well as the unusual nature of the system, we consider the possibility that the microlens parallax signal, which determines the host mass and distance, is actually due to xallarap (source orbital motion) that is being misinterpreted as parallax. We show a result that favors the parallax solution, even given its close host distance. We show that future high-resolution astrometric measurements could decisively resolve the remaining ambiguity of these solutions. [less ▲]Detailed reference viewed: 15 (8 ULg) compte rendu de : Marja Vierros, Bilingual Notaries in Hellenistic Egypt. A Study of Greek as a Second Language, Brussel, Koninklĳke Vlaamse Academie van België voor Wetenschappen en Kunsten, 2012, 1 vol. 21 x 30 cm, 290 p. (COLLECTANEA HELLENISTICA, V). ISBN : 90-6569-103-3.Rochette, Bruno in Tyche : Beiträge zur Alten Geschichte Papyrologie und Epigraphik (in press)Detailed reference viewed: 8 (0 ULg) Contribution à un lexique épigraphique: "deltographéma"Famerie, Etienne in Zeitschrift für Papyrologie und Epigraphik (in press)Detailed reference viewed: 34 (10 ULg) Payment of a financial obligation from TebtynisMacedo, Gabriel in Bulletin of the American Society of Papyrologists (in press)Edition, translation and commentary of P. Tebt. 2. 523 descr., a second century Greek documentary papyrus.Detailed reference viewed: 12 (2 ULg) Subspace-based identification of a nonlinear spacecraft in the time and frequency domainsNoël, Jean-Philippe ; Marchesiello, Stefano; Kerschen, Gaëtan in Mechanical Systems & Signal Processing (in press)The objective of the present paper is to address the identification of a strongly nonlinear satellite structure. To this end, two nonlinear subspace identification methods formulated in the time and ... [more ▼]The objective of the present paper is to address the identification of a strongly nonlinear satellite structure. To this end, two nonlinear subspace identification methods formulated in the time and frequency domains are exploited, referred to as the TNSI and FNSI methods, respectively. The modal parameters of the underlying linear structure and the coefficients of the nonlinearities will be estimated by these two approaches based on periodic random measurements. Their respective merits will also be discussed in terms of both accuracy and computational efficiency and the use of stabilisation diagrams in nonlinear system identification will be introduced. The application of interest is the SmallSat spacecraft developed by EADS-Astrium, which possesses an impact-type nonlinear device consisting of eight mechanical stops limiting the motion of an inertia wheel mounted on an elastomeric interface. This application is challenging for several reasons including the non-smooth nature of the nonlinearities, high modal density and high non-proportional damping. [less ▲]Detailed reference viewed: 12 (3 ULg) A note on weighted likelihood and Jeffreys modal estimation of proficiency levels in polytomous item response modelsMagis, David in Psychometrika (in press)Warm (1989) established the equivalence between the so-called Jeffreys modal and the weighted likelihood estimators of proficiency level with some dichotomous item response models. The purpose of this ... [more ▼]Warm (1989) established the equivalence between the so-called Jeffreys modal and the weighted likelihood estimators of proficiency level with some dichotomous item response models. The purpose of this note is to extend this result to polytomous item response models. First, a general condition is derived to ensure the perfect equivalence between these two estimators. Second, it is shown that this condition is fulfilled by two broad classes of polytomous models including, among others, the partial credit, rating scale, graded response and nominal response models. [less ▲]Detailed reference viewed: 23 (4 ULg) The effect of melody and technique on the singing voice accuracy of trained singersLarrouy, Pauline ; Magis, David ; Morsomme, Dominique in Logopedics, Phoniatrics, Vocology (in press)A previous study highlighted the effect of vocal technique on the singing voice accuracy of trained singers (1). The intervals' precision between the notes of the tune was altered when the singers used ... [more ▼]A previous study highlighted the effect of vocal technique on the singing voice accuracy of trained singers (1). The intervals' precision between the notes of the tune was altered when the singers used Western operatic singing technique. In order to better understand these results, we have recorded two different melodies sung with two different vocal techniques. A large panel of trained singers (N = 50) participated in the study. The analytical method described in the reference paper (1) has been applied. The results confirm the effect of vocal technique on the vocal accuracy of trained singers. In addition, these results provide an answer about the melodic effect and guide future work on the perception process of operatic voices. [less ▲]Detailed reference viewed: 36 (11 ULg) Enzymatic characterization of recombinant alpha-amylase in the Drosophila melanogaster species subgroup: is there an effect of specialization on digestive enzyme?Commin, Céline; Aumont-Nicaise, Magali; Claisse, Gaëlle et alin Genes & Genetic Systems (in press)Detailed reference viewed: 9 (1 ULg) Magie et pharmacopée : l’utilisation des végétaux dans les papyrus iatromagiques grecsde Haro Sanchez, Magali in Mythos (in press)The iatromagical papyri, subgenus of the magical papyri, come from Egypt. From the 1st BC to AD the 7th, they appear in the form of formularies, spells copied from them, amulets and a private letter. For ... [more ▼]The iatromagical papyri, subgenus of the magical papyri, come from Egypt. From the 1st BC to AD the 7th, they appear in the form of formularies, spells copied from them, amulets and a private letter. For many years, the study of these texts has been part of a research program of the Centre de Documentation de Papyrologie Littéraire (CeDoPaL) of the University of Liège. We will present here the results from the analysis of the content of the prescriptions with plants attested in the Greek iatromagical formularies. [less ▲]Detailed reference viewed: 159 (24 ULg) The use of SWOT analysis to explore and prioritize conservation and development strategies for local cattle breedsMartin-Collado, D; Diaz, C; Mäki-Tanila, A et alin Animal (in press)SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis is a tool widely used to help in decision making in complex systems. It suits to exploring the issues and measures related to the ... [more ▼]SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis is a tool widely used to help in decision making in complex systems. It suits to exploring the issues and measures related to the conservation and development of local breeds, as it allows the integration of many driving factors influencing breed dynamics. We developed a quantified SWOT method as a ecisionmaking tool for identification and ranking of conservation and development strategies of local breeds, and applied it to a set of 13 cattle breeds of six European countries. The method has four steps: definition of the system, identification and grouping of the driving factors, quantification of the importance of driving factors and identification and prioritization of the strategies. The factors were determined following a multi-stakeholder approach and grouped with a three-level structure. Animal genetic resources expert groups ranked the factors, and a quantification process was implemented to identify and prioritize strategies. The proposed SWOT methodology allows analyzing the dynamics of local cattle breeds in a structured and systematic way. It is a flexible tool developed to assist different stakeholders in defining the strategies and actions. The quantification process allows the comparison of the driving factors and the prioritization of the strategies for the conservation and development of local cattle breeds. We identified 99 factors across the breeds. Although the situation is very heterogeneous, the future of these breeds may be promising. The most important strengths and weaknesses were related to production systems and farmers. The most important opportunities were found in marketing new products, whereas the most relevant threats were found in selling the current products. The across-breed strategies utility decreased as they gained specificity. Therefore, the strategies at European level should focus on general aspects and be flexible enough to be adapted to the country and breed specificities. [less ▲] Compte-rendu de l'ouvrage de I. Warntjes & D. O'Croinin : "Computus and its Cultural Contexte in the Latin West, AD 300-1200"Close, Florence in Scriptorium (in press), 2013(1), Detailed reference viewed: 19 (1 ULg) Chronique de jurisprudence communautaire - Les marchés publics dans les Etats membres,Durviaux, Ann-Lawrence in Revue Trimestrielle de Droit Européen (in press), 2012/2Detailed reference viewed: 72 (11 ULg) Compte-rendu de l'ouvrage de A. Charon, C. Lesage & É. Netchine (éds) : Le livre entre le commerce et l’histoire des idées. Les catalogues de libraires (XVe-XIXe siècles)Adam, Renaud in Livre et l'Estampe (Le) (in press)Detailed reference viewed: 31 (11 ULg) La langue qui goûte. Manger marocain(s) en Italie.Mescoli, Elsa in Cahiers européens de l’imaginaires (in press), 5Fatéma Hal, ethnologue et restauratrice marocaine, décrit la nourriture, ainsi que la parole, comme ultime possession dont on ne peut jamais se défaire. On est ce qu’on mange, où qu’on soit. Mais on peut ... [more ▼]Fatéma Hal, ethnologue et restauratrice marocaine, décrit la nourriture, ainsi que la parole, comme ultime possession dont on ne peut jamais se défaire. On est ce qu’on mange, où qu’on soit. Mais on peut pousser l’analyse au-delà de cela, en affirmant que c’est encore à travers le goût qu’on connait l’autre. Qu’il s’agisse d’ « exotisme culinaire » (Régnier 2004) ou de ce que l’on pourrait définir comme un « cannibalisme exogène », la dégustation des cuisines ainsi dites « ethniques » est une pratique à la mode. Manger l’Autre, pour le connaître ou pour le contrôler ; se faire manger par l’Autre, pour raconter de soi ou pour satisfaire les discours sur l’intégration, témoignent du rôle complexe de la nourriture dans les rapports humains à travers les cultures. L’étude ethnographique que je présente dans cet article vise à illustrer comment certaines femmes marocaines vivant en Italie construisent un savoir culinaire commun, fait de pratiques et de saveurs mobiles, et de quelle façon ce même savoir est acteur du domaine publique. [less ▲]Detailed reference viewed: 14 (4 ULg) Some misunderstood or unknown LaTeX tricks (XIV) and LaTeX learning curveMerciadri, Luca in TUGboat (in press)We will here give three tricks: i. using a personalized \overline, ii. boxing every digit of an integer, iii. using \scalebox. I will then expose my point of view about the LaTeX learning curve, and give ... [more ▼]We will here give three tricks: i. using a personalized \overline, ii. boxing every digit of an integer, iii. using \scalebox. I will then expose my point of view about the LaTeX learning curve, and give some of the most common beginners’ mistakes. [less ▲]Detailed reference viewed: 35 (13 ULg) Ce cavernome cérébral est-il la cause d'un syndrome parkinsonien ?Benmouna, Karim; DIVE, Dominique ; WANG, François-Charles et alin Revue Médicale de Liège (in press)We report the case of a patient presenting with an akineto-rigid syndrome of the left hemibody whose etiological exploration by magnetic resonance imaging showed the presence of a cavernoma located in the ... [more ▼]We report the case of a patient presenting with an akineto-rigid syndrome of the left hemibody whose etiological exploration by magnetic resonance imaging showed the presence of a cavernoma located in the right lenticular region. The interest of this situation lies in establishing whether pathophysiological link may exist between such symptoms and the lesion. [less ▲]Detailed reference viewed: 56 (4 ULg) Some misunderstood or unknown tricks (IX) (LaTeX)Merciadri, Luca in TUGboat (in press)We describe here how to display date & time in a standard format, write (draw) dash integrals, number rows in tables, use unhabitual punctuation marks: interrobang and percontation point, draw dependency ... [more ▼]We describe here how to display date & time in a standard format, write (draw) dash integrals, number rows in tables, use unhabitual punctuation marks: interrobang and percontation point, draw dependency arrows, distinguish between ConTeXt, LuaTeX, teTeX and XeTeX. The last section gives a LaTeX-related crossword puzzle. [less ▲]Detailed reference viewed: 32 (15 ULg) The effects of stress on singing voice accuracyLarrouy, Pauline ; Morsomme, Dominique in Journal of Voice (in press)Objective: The quality of a music performance can be lessened or enhanced if the performer experiences stressful conditions. In addition, the quality of a sung performance requires control of the ... [more ▼]Objective: The quality of a music performance can be lessened or enhanced if the performer experiences stressful conditions. In addition, the quality of a sung performance requires control of the fundamental frequency of the voice, which is particularly sensitive to stress. The present study aimed to clarify the effects of stress on singing voice accuracy. Methods: Thirty-one music students were recorded in a stressful condition (i.e., a music examination) and a non-stressful condition. Two groups were defined according to the challenge level of the music examination (first and second music levels). Measurements were made by self-reported state anxiety (CSAI-2R questionnaire) and by observing heart rate activity (electrocardiogram) during each performance. In addition, the vocal accuracy of the sung performances was objectively analyzed. Results: As expected, state anxiety and heart rate were significantly higher on the day of the music examination than in the non-stressful condition for all the music students. However, the effect of stress was positive for the first-year students but negative for the second-year students, for whom the music examination was particularly challenging. In addition, highly significant correlations were found between the intensity of cognitive symptoms and the vocal accuracy criteria. Discussion: This study highlights the contrasting effects of stress on singing voice accuracy but also the need to consider the challenge level and perception of the symptoms in experimental and pedagogical settings. [less ▲]Detailed reference viewed: 37 (9 ULg) A randomised, double-blinded, placebo-controlled, parallel study of vitamin D3 supplementation with different schemes based on multiples of 25,000 IU dosesCAVALIER, Etienne ; Faché, W; Souberbielle, Jean-Caudein International Journal of Endocrinology (in press)Vitamin D (VTD) treatment is recommended in patients presenting different causes of diseases. To treat these patients, physicians rely on the different available pharmaceutical forms present in their ... [more ▼]Vitamin D (VTD) treatment is recommended in patients presenting different causes of diseases. To treat these patients, physicians rely on the different available pharmaceutical forms present in their country. Unfortunately, even in a given country, there is no consensus on the best way to treat the patients. In Belgium, VTD is mostly prescribed as ampoules containing 25,000 IU of VTD. In this randomised controlled study, we evaluated whether four therapeutic schemes using multiples of 25,000 IU of VTD according to basal vitamin D concentration were able to increase or maintain the 25(OH)D serum level above 30 ng/mL. We randomized 175 subjects who received the drug () or placebo (). Total duration of the study was 12 weeks. Doses ranged from 4167 to 1667 IU/day. Blood sampling was performed at baseline and each 4 visits. In the treated (placebo) subjects, mean 25(OH)D serum concentration was 18.7 (19.1) ng/mL at baseline and 31.5 (20.7) ng/mL at w-12. At the end of the study, 57.1% of the subjects treated with VTD presented 25(OH)D serum concentration ≥30 ng/mL, whereas 94.3% were ≥20 ng/mL. In conclusion, the doses administered were safe and increased or maintained the 25(OH)D concentration ≥20 ng/mL. However, concentrations ≥30 ng/mL were only achieved in 57.1% of the subjects. [less ▲]Detailed reference viewed: 35 (5 ULg) La transposition didactique en français langue étrangère et secondeBento, Margaret; Defays, Jean-Marc ; Meunier, Deborah in Français dans le Monde [=FDLM] : Revue Internationale et Francophone des Professeurs de Français (in press)Detailed reference viewed: 20 (1 ULg) Robust estimation for ordinal regressionCroux, Christophe ; Haesbroeck, Gentiane ; Ruwet, Christel in Journal of Statistical Planning & Inference (in press)Ordinal regression is used for modelling an ordinal response variable as a function of some explanatory variables. The classical technique for estimating the unknown parameters of this model is Maximum ... [more ▼]Ordinal regression is used for modelling an ordinal response variable as a function of some explanatory variables. The classical technique for estimating the unknown parameters of this model is Maximum Likelihood (ML). The lack of robustness of this estimator is formally shown by deriving its breakdown point and its influence function. To robustify the procedure, a weighting step is added to the Maximum Likelihood estimator, yielding an estimator with bounded influence function. We also show that the loss in efficiency due to the weighting step remains limited. A diagnostic plot based on the Weighted Maximum Likelihood estimator allows to detect outliers of different types in a single plot. [less ▲]Detailed reference viewed: 18 (5 ULg) Pour une esthétique de la vérité - De Kant à Kant en passant par BachelardPieron, Julien in Philosophie (in press)Detailed reference viewed: 20 (6 ULg) Some misunderstood or unknown tricks (VIII) and Turing-completeness (LaTeX)Merciadri, Luca in TUGboat (in press)We will begin by exposing new tricks, i.e. how to 1. write ‘closed’ square roots, 2. insert blank pages, 3. ask the reader to turn the page, 4. write bold words in an index, 5. divide a cell by a diagonal ... [more ▼]We will begin by exposing new tricks, i.e. how to 1. write ‘closed’ square roots, 2. insert blank pages, 3. ask the reader to turn the page, 4. write bold words in an index, 5. divide a cell by a diagonal, 6. draw ‘product integrals,’ 7. understand what happens when \mathcal has a lower-case letter argument. We will then consider an uncommon example of what one can do with LaTeX, in link with its Turing completeness. [less ▲]Detailed reference viewed: 35 (9 ULg) Antioxidant potential of different plum cultivars during storageMIHALACHE ARION, Cristina; TABART, Jessica; Kevers, Claire et alin Food Chemistry (in press)Plums, the most commonly consumed fruits from Romania, are fruit rich in bioactive compounds like antioxidants. This research work was carried out to investigate the antioxidant potential of twelve plum ... [more ▼]Plums, the most commonly consumed fruits from Romania, are fruit rich in bioactive compounds like antioxidants. This research work was carried out to investigate the antioxidant potential of twelve plum cultivars, fresh and stored during 10 days at 4°C by using different methods (DPPH, ORAC and erythrocyte resistance to haemolysis). The contents of total phenolic compounds and total anthocyanins were also determined by specific spectrometric methods. Significant differences between fresh and stored plum cultivars (p < 0.05) were found. Storage at 4°C resulted in an increase in antioxidant potential and anthocyanins content of the autumn plum varieties. Autumn plum varieties showed also a higher antioxidant capacity than summer varieties, as assessed by the ORAC and the haemolysis resistance assays. Our results suggest that even after storage plums could be a good source of antioxidants, which may provides health-promoting effects for humans. [less ▲]Detailed reference viewed: 12 (1 ULg) Entre arrachement et déprise. Sartre, Foucault et la création du soiBolmain, Thomas in Etudes Sartriennes (in press), 16Cet article, qui décrit dans un premier temps la Stimmung philosophique propre à Sartre et propre à Foucault, tente surtout d’évaluer quels types de transformation éthique de soi réservent les pensées de ... [more ▼]Cet article, qui décrit dans un premier temps la Stimmung philosophique propre à Sartre et propre à Foucault, tente surtout d’évaluer quels types de transformation éthique de soi réservent les pensées de la finitude de chacun de ces auteurs. Revenant sur les points classiques du débat Sartre/Foucault, de la « querelle de l’humanisme » à leurs lectures de Baudelaire, il s’attache plus spécialement à décrire, à partir du thème sartrien de l’imaginaire, certaines accointances entre le jeune Sartre et le dernier Foucault. Il montre au final que, malgré des présupposés philosophiques divergents, l’un et l’autre tracent, entre arrachement et déprise, des voies parallèles lorsqu’il leur faut décrire le mouvement de création du soi : sur fond d’une passivité première, elle est ici et là cette expérience qui reste toujours à reprendre dans la forme d’une indéfinie pratique de la non-coïncidence de soi à soi. [less ▲]Detailed reference viewed: 73 (18 ULg) Proposed terms and concepts for describing and evaluating animal-health surveillance systemsHoinville, LJ; Alban, L; Drewe, JA et alin Preventive Veterinary Medicine (in press)Detailed reference viewed: 7 (4 ULg) Brains creating stories of selves: the neural basis of autobiographical reasoning.D'Argembeau, Arnaud ; Cassol, Helena; Phillips, Christophe et alin Social Cognitive and Affective Neuroscience (in press)Personal identity critically depends on the creation of stories about the self and one's life. The present study investigates the neural substrates of autobiographical reasoning, a process central to the ... [more ▼]Personal identity critically depends on the creation of stories about the self and one's life. The present study investigates the neural substrates of autobiographical reasoning, a process central to the construction of such narratives. During fMRI scanning, participants approached a set of personally significant memories in two different ways: on some trials, they remembered the concrete content of the events (autobiographical remembering), whereas on other trials they reflected on the broader meaning and implications of their memories (autobiographical reasoning). Relative to remembering, autobiographical reasoning recruited a left-lateralized network involved in conceptual processing (including the dorsal medial prefrontal cortex (MPFC), inferior frontal gyrus, middle temporal gyrus, and angular gyrus). The ventral MPFC-an area that may function to generate personal/affective meaning-was not consistently engaged during autobiographical reasoning across participants but, interestingly, the activity of this region was modulated by individual differences in interest and willingness to engage in self-reflection. These findings support the notion that autobiographical reasoning and the construction of personal narratives go beyond mere remembering in that they require deriving meaning and value from past experiences. [less ▲]Detailed reference viewed: 29 (3 ULg) Le motif : une unité phraséologique englobante ? Etendre le champ de la phraséologie de la langue au discoursLongrée, Dominique ; Mellet, Sylviein Langages (in press)Detailed reference viewed: 15 (2 ULg) Snijders’ correction of Infit and Outfit indexes with estimated ability level : an analysis with the Rasch modelMagis, David ; Béland, Sébastien; Raîche, Gillesin Journal of Applied Measurement (in press)The Infit mean square W and the Outfit mean square U are commonly used person fit indexes under Rasch measurement. However, they suffer from two major weaknesses. First, their asymptotic distribution is ... [more ▼]The Infit mean square W and the Outfit mean square U are commonly used person fit indexes under Rasch measurement. However, they suffer from two major weaknesses. First, their asymptotic distribution is usually derived by assuming that the true ability levels are known. Second, such distributions are even not clearly stated for indexes U and W. Both issues can seriously affect the selection of an appropriate cut-score for person fit identification. Snijders (2001) proposed a general approach to correct some person fit indexes when specific ability estimators are used. The purpose of this paper is to adapt this approach to U and W indexes. First, a brief sketch of the methodology and its application to U and W is proposed. Then, the corrected indexes are compared to their classical versions through a simulation study. The suggested correction yields controlled Type I errors against both conservatism and inflation, while the power to detect specific misfitting response patterns gets significantly increased. [less ▲]Detailed reference viewed: 18 (0 ULg) Open ux in Saturn's magnetosphereBadman, Sarah; Jackman, Caitriuna; Nichols, Jonathan et alin Icarus (in press)Detailed reference viewed: 4 (0 ULg) 65e Session de la SIHDACavalleri, Vanessa in Index – Quaderni camerti di studi romanistici (in press)Detailed reference viewed: 77 (10 ULg) Microbial, biochemical and sensorial quality assessment of Algerian farmed tilapia (Oreochromis niloticus) stored at 4 and 30°CDergal, Nadir; Abi-Ayad, S.M.E.-A.; Degand, Guy et alin African Journal of Food Science (in press)Detailed reference viewed: 21 (3 ULg) Une tablette scolaire copte de Lecce : TUL inv. C 1Carlig, Nathan ; Delattre, Alainin Studi di Egittologia e di Papirologia (in press)Detailed reference viewed: 24 (1 ULg) Virtual reality as a complementary therapy to sexual addiction treatmentCismaru Inescu, Adina; Andrianne, Robert ; Triffaux, Jean-Marc in International Journal of Advanced Computer Science (in press), 3(7), 1-5Detailed reference viewed: 58 (17 ULg) The Stadium of Olympia, from a dialogical architecture perspectiveKiuri, Miranda ; Teller, Jacques in Arquitectonics: Mind, Land and Society (in press), 26The article proposes a renewed interpretation of the relation of the antique stadium of Olympia with its environment. It is argued that the stadium, far from being isolated from the city as commonly ... [more ▼]The article proposes a renewed interpretation of the relation of the antique stadium of Olympia with its environment. It is argued that the stadium, far from being isolated from the city as commonly admitted, was connected to the Altis through a series of visual relations, adopting principles of dialogical architecture. This argument is illustrated through computer generated perspectives of the stadium. [less ▲]Detailed reference viewed: 97 (41 ULg) Compte rendu de l'ouvrage d'I. Mazzini, Letteratura e medicina nel mondo antico, Rome: Università La Sapienza, 2011Ricciardetto, Antonio in Latomus : Revue d'Etudes Latines (in press)Detailed reference viewed: 49 (11 ULg) Management of cases suffering from atypical myopathy:Interpretations of descriptive, epidemiological and pathophysiological findings. Part 2: Muscular, urinary, respiratory and hepatic care, and inflammatory/infectious statusVan Galen, Gaby ; Votion, Dominique in Equine Veterinary Education (in press)Atypical myopathy is highly fatal, but about a quarter of affected horses survive. This highlights the need for provision of supportive treatment for these patients. This review is a practical guideline ... [more ▼]Atypical myopathy is highly fatal, but about a quarter of affected horses survive. This highlights the need for provision of supportive treatment for these patients. This review is a practical guideline for equine practitioners and includes suggestions for close monitoring of involved organ systems and discusses options of supportive treatment based on current knowledge of the condition. Part 2 covers the muscular, urinary, respiratory and hepatic systems, and the general inflammatory/infectious status of the case. [less ▲]Detailed reference viewed: 163 (21 ULg) Compte rendu de l'ouvrage de F. Ravoire et A. Dietrich (dir.), La cuisine et la table dans la France de la fin du Moyen Âge. Contenus et contenants du XIVe au XVIe siècleVon Hoffmann, Viktoria in Moyen Age (Le) (in press)Detailed reference viewed: 21 (2 ULg) Interactions of lipases with milk fat globule membrane monolayers using a Langmuir film balanceDanthine, Sabine ; Blecker, Christophe in International Dairy Journal (in press)Detailed reference viewed: 14 (1 ULg) 3D Modeling of Thin Sheets in the Discontinuous Galerkin Method for Transient Scattering AnalysisBoubekeur, Mohamed; Kameni, Abelin; Bernard, Laurent et alin IEEE Transactions on Magnetics (in press)This paper presents a modeling of thin sheets. An interface condition based on analytical solution is used to avoid a fine mesh. This condition is integrated in a time domain Discontinuous Galerkin method ... [more ▼]This paper presents a modeling of thin sheets. An interface condition based on analytical solution is used to avoid a fine mesh. This condition is integrated in a time domain Discontinuous Galerkin method in order to evaluate the shielding effectiveness. This approach is validated by a comparison with analytical solution. 2D and 3D cavities are simulated to illustrate the efficiency of the condition. [less ▲]Detailed reference viewed: 11 (3 ULg) Unveiling the mystery of Combined Heat & Power (cogeneration)Verbruggen, Aviel; Dewallef, Pierre ; Quoilin, Sylvain et alin Energy (in press)The article unveils the mystery of cogeneration. Cogeneration is an add-on or embedded activity in thermal power plants, with as merit the use of part or whole of their point source heat exhausts. EU's ... [more ▼]The article unveils the mystery of cogeneration. Cogeneration is an add-on or embedded activity in thermal power plants, with as merit the use of part or whole of their point source heat exhausts. EU's talk of “high-efficiency cogeneration” is an unfounded transfer of responsibility from the hosting thermal power generation plant onto CHP (Combined Heat & Power) activity. The quality of a CHP activity is univocally defined by its design power-to-heat ratio σ, a tombstone parameter derived from the design characteristics of the power plant. A thermal power plant may house more than one cogeneration activity. Identifying σ requires positioning the bliss point in the electricity–heat production possibility set of the cogeneration activity. The bliss point is where after electric output is maximized, the sum of that output and the maximum recoverable quantity of heat occurs. Once CHP's mystery of virtual bliss points is unveiled, the proper σ are found. With known σ by CHP activity, the quantity of cogenerated electricity is reliably assessed as best indicator of cogeneration performance. Our analysis is applicable on all relevant thermal power cycles that host CHP activities, and illustrated with a numerical example. Our lean method is necessary and sufficient for proper CHP regulation. [less ▲]Detailed reference viewed: 25 (1 ULg) IDS iSYS automated intact procollagen-1-Nterminus pro-peptide assay: method evaluation and reference intervals in adults and childrenMorovat, Alireza; Catchpole, Anthony; MEURISSE, Angélique et alin Clinical Chemistry & Laboratory Medicine (in press)Background: We carried out a technical evaluation of the Immunodiagnostic Systems (IDS) automated intact procollagen- I N-terminus propeptide (PINP) assay on the iSYS platform, and established reference ... [more ▼]Background: We carried out a technical evaluation of the Immunodiagnostic Systems (IDS) automated intact procollagen- I N-terminus propeptide (PINP) assay on the iSYS platform, and established reference intervals for PINP in both adults and children. Methods: Assay imprecision, recovery and interference were studied. Serum and plasma values were compared, and PINP stability was assessed. Using 828 specimens, IDS iSYS intact PINP and Roche E170 total PINP values were compared. Specimens from 597 adults and 485 children and adolescents were used to establish reference intervals for intact PINP. Results: The method demonstrated good recovery and acceptable imprecision. The assay was unaffected by icterus and lipaemia, but haemolysis decreased measured PINP. Serum and plasma values were comparable. There was a non-linear relation between IDS intact and Roche total PINP values. Pre- and post-menopausal women had comparable PINP values, but there was a difference between women of different age groups. Serum PINP in men showed a decline in young age up to 45 years, but remained steady thereafter. Separate reference intervals were established for four age groups in women and for two age groups in men. Data for children were partitioned into four-year age groups, and these showed PINP to be high with no major gender differences until 12 years of age. Thereafter, values in females decreased in 13–16 years age groups and further in 17–20 years age groups, whereas PINP increased in boys of 13–16 years of age with a subsequent decline at 17–20 years. Conclusions: The IDS iSYS PINP intact assay appears to be reliable. We have established gender- and age-related reference intervals for children and adults based on a relatively large healthy North European population. [less ▲]Detailed reference viewed: 27 (5 ULg) Chronic fluoxetine treatment and maternal adversity differentially alter neurobiohavioral outcomes in rat damPawluski, Jodi ; Charlier, Thierry ; Fillet, Marianne et alin Behavioural Brain Research (in press)Detailed reference viewed: 42 (15 ULg) Multi-period vehicle loading with stochastic release datesArda, Yasemin ; Crama, Yves ; Kronus, David et alin EURO Journal on Transportation and Logistics (in press)This paper investigates a multi-period vehicle loading problem with stochastic information regarding the release dates of items to be transported. The deterministic version of the problem can be ... [more ▼]This paper investigates a multi-period vehicle loading problem with stochastic information regarding the release dates of items to be transported. The deterministic version of the problem can be formulated as a large-scale set covering problem. Several heuristic algorithms are proposed to generate decision policies for the stochastic optimization model over a long rolling horizon. The resulting policies have been extensively tested on instances which display the main characteristics of the industrial case-study that motivated the research. The tests demonstrate the benefits of the multi-period stochastic model over simple myopic strategies. A simple and efficient heuristic is shown to deliver good policies and to be robust against errors in the estimation of the probability distribution of the release dates. [less ▲]Detailed reference viewed: 50 (18 ULg) A computationally efficient hybrid leakage model for positive displacement compressors and expandersBell, Ian ; Groll, Eckhard; Braun, James E. et alin International Journal of Refrigeration (in press)An empirical frictional correction factor to the isentropic nozzle model has been developed for application to refrigerant leakage modeling in scroll, rotary and other similar compressors. This correction ... [more ▼]An empirical frictional correction factor to the isentropic nozzle model has been developed for application to refrigerant leakage modeling in scroll, rotary and other similar compressors. This correction factor is derived by calculating the leakage mass flow rate with a compressible, variable area, real gas properties model and referencing the results to an isentropic nozzle model. The ratio of flows is correlated to the Reynolds number, a characteristic length and the leakage gap width. A representative selection of fluids and geometries are employed. For all the correlations, at least 93% of the points are predicted within an absolute error band of 20%. [less ▲]Detailed reference viewed: 30 (7 ULg) Analysis of transient scattering problems using a discontinuous Galerkin method: application to the shielding effectiveness of enclosures with heterogeneous wallsBoubekeur, Mohamed; Kameni, Abelin; Pichon, Lionel et alin International Journal of Numerical Modelling: Electronic Networks, Devices and Fields (in press)In this paper, different formulations of Maxwell equations are combined for computing the shielding effectiveness of enclosures made from heterogeneous periodic materials. The validity of the homogenized ... [more ▼]In this paper, different formulations of Maxwell equations are combined for computing the shielding effectiveness of enclosures made from heterogeneous periodic materials. The validity of the homogenized parameters given by Maxwell-Garnett rules in the frequency domain are tested in the time domain using a nodal discontinuous Galerkin method, which uses an interface condition based on analytical solution in the frequency domain to replace a conductive sheet. This interface condition allows to avoid meshing the thin sheet, thus reducing the computational cost. Results of scattering by composite enclosures are presented in the frequency domain thanks to a Fast Fourier Transform. [less ▲]Detailed reference viewed: 9 (2 ULg) Changes in Structure and Symptoms in Knee Osteoarthritis and Prediction of Future Knee Replacement Over 8 Years.Bruyère, Olivier ; Cooper, Cyrus; Pavelka, Karel et alin Calcified Tissue International (in press)The objective of this study was to assess the association between changes in joint space width (JSW, i.e., structure) or Western Ontario and McMaster Universities (WOMAC) score (i.e., symptoms) over 3 ... [more ▼]The objective of this study was to assess the association between changes in joint space width (JSW, i.e., structure) or Western Ontario and McMaster Universities (WOMAC) score (i.e., symptoms) over 3 years in patients with knee osteoarthritis and the occurrence of knee replacement over 8 years. We followed 133 subjects with primary knee osteoarthritis prospectively for a mean of 8 years. JSW (standard radiography) and symptoms (total WOMAC score) were assessed every year for 3 years. The rate of knee replacement was recorded for the following 5 years. Logistic regressions were performed according to the intention-to-treat principle. After 8 years' follow-up, ten patients (7.5 %) had undergone a knee replacement. The changes in JSW or WOMAC score over 3 years were significantly associated with the occurrence of knee replacement during the following 5 years (p = 0.02 and p = 0.03, respectively). Each 0.1-mm narrowing of JSW over 3 years was associated with a 14 % (95 % CI 3-25 %) increased risk for knee replacement. For every 10 % increase in WOMAC score, the risk for joint replacement was increased by 16 % (95 % CI 1-33 %). When JSW and WOMAC score were included in the same statistical model, they were still significantly associated with risk for knee replacement (p = 0.02 and p = 0.03, respectively), but JSW change was the only variable that remained significant after adjusting for all potential confounders. Our results suggest that changes in symptoms and, more particularly, in structure over 3 years in patients with osteoarthritis reflect a clinically relevant progression of the disease. [less ▲]Detailed reference viewed: 15 (7 ULg) Why some species cannot colonize restored habitats? The effects of seed and microsite availabilityPiqueray, Julien ; Saad, Layla; Bizoux, Jean-Philippe et alin Journal for Nature Conservation (in press)Restoration of calcareous grasslands was promoted as a conservation strategy to reduce the risks imposed by habitat loss and fragmentation. Restoration already provided promising results for several taxa ... [more ▼]Restoration of calcareous grasslands was promoted as a conservation strategy to reduce the risks imposed by habitat loss and fragmentation. Restoration already provided promising results for several taxa, however some specialist species still fail at colonizing restored habitats. We aimed at explaining this lack of colonization success for three calcareous grasslands specialist species in Southern Belgium: Pulsatilla vulgaris, Trifolium montanum and Veronica prostrata. We studied: (i) Germination in control and outdoor conditions (cold, heat, smoke and litter effects); (ii) In-situ seedling emergence patterns (effects of seed addition and germination microsites availability). The three species were able to germinate in Petri dishes in the absence of treatment. Cold enhanced the germination of V. prostrata. Fire-related treatments (heat shock and smoke exposure) did not enhance germination and were deleterious to V. prostrata. Litter cover improved P. vulgaris emergence in outdoor containers, but had a negative effect on V. prostrata. In the field, V. prostrata did not emerge. T. montanum seedlings were observed in the reference grasslands when seeds were added, but not in the restored grasslands. P. vulgaris emerged in the reference grasslands, and to a lower degree in the restored grasslands. The combination of seed addition and microsites availability for seed germination resulted in enhanced seedling emergence for P. vulgaris. Our results suggest that seed and microsite availability can be limiting factors for site colonization, but the combination of both is likely much more limiting. Lower seedling emergence in restored than in reference grasslands suggests a lower habitat quality in restored grasslands. [less ▲] Déroche François, Sagaria Rossi Valentina (2012), I manoscritti in caratteri arabi - al-Maḫṭūṭāt bi-ʾl-ḥarf al-ʿarabī, Roma, Viella (Scritture e libri del Medioevo, 9), p. xviii-350. ISBN: 9788883346873Franssen, Elise in Quaderni di Studi Arabi (in press)Detailed reference viewed: 17 (0 ULg) Microbial heterogeneity affects bioprocess robustness: Dynamic single cell analysis contribute to understanding microbial populationsDelvigne, Frank ; Goffin, Philippein Biotechnology Journal (in press)Heterogeneity or segregation of microbial populations has been the subject of much research, but the real impact of this phenomenon on bioprocesses remains not well understood. The main reason behind this ... [more ▼]Heterogeneity or segregation of microbial populations has been the subject of much research, but the real impact of this phenomenon on bioprocesses remains not well understood. The main reason behind this lack of knowledge is the difficulty for monitoring microbial population heterogeneity in dynamic process conditions. The main concepts leading to microbial population heterogeneity in the context of bioprocesses have been summarized by two distinct hypotheses. The first one involves the individual history of microbial cells or “path” followed during their residence time inside process equipment. The second one involves a coordinated response of the microbial population as a bet-hedging strategy in order to cope with process-related stresses. The respective contribution of each hypothesis to microbial heterogeneity in bioprocesses is still unclear. This statement illustrates the fact that, although microbial phenotypic heterogeneity has been thoroughly investigated at the fundamental level, the implications of this phenomenon in the context of microbial bioprocesses are still subjected to debate. At this time, automated flow cytometry is the best technique for the investigation of microbial heterogeneity in process conditions. However, dedicated software and relevant biomarkers are needed for its proper integration as a bioprocess control tool. [less ▲]Detailed reference viewed: 25 (3 ULg) Some misunderstood or unknown tricks (X) (LaTeX)Merciadri, Luca in TUGboat (in press)This is the 10th edition of my TUGboat Tips & Tricks.' This time, we shall first see how to write dancing text,' roman numerals, how to draw under and over braces on same elements, and how to display ... [more ▼]This is the 10th edition of my TUGboat Tips & Tricks.' This time, we shall first see how to write dancing text,' roman numerals, how to draw under and over braces on same elements, and how to display aligned (in)equations systems. We will then end by discussing on BibLaTeX and Biber, which constitute a promising alternative to BibTeX. [less ▲]Detailed reference viewed: 41 (15 ULg) Case studies of incorporation of prior information in electrical resistivity tomography: comparison of different approachesCaterina, David ; Nguyen, Frédéric ; Hermans, Thomas in Near Surface Geophysics (in press)Many geophysical inverse problems are ill-posed and their solution non-unique. It is thus important to reduce the amount of mathematical solutions to more geologically plausible models by regularizing the ... [more ▼]Many geophysical inverse problems are ill-posed and their solution non-unique. It is thus important to reduce the amount of mathematical solutions to more geologically plausible models by regularizing the inverse problem and incorporating all available prior information in the inversion process. We compare three different ways to incorporate prior information for electrical resistivity tomography (ERT): using a simple reference model or adding structural constraints to Occam's inversion and using geostatistical constraints. We made the comparison on four real cases representing different field applications in terms of scales of investigation and level of heterogeneities. In those cases, when electromagnetic logging data are available in boreholes to control the solution, it appears that incorporating prior information clearly improves the correspondence with logging data compared to the standard smoothness constrain. However, the way to incorporate it may have a major impact on the solution. A reference model can often be used to constrain the inversion; however, it can lead to misinterpretation if its weight is too strong or the resistivity values inappropriate. When the computation of the vertical and/or horizontal correlation length is possible, the geostatistical inversion gives reliable results everywhere in the section. However, adding geostatistical constraints can be difficult when there is not enough data to compute correlation lengths. When a known limit between two layers exists, the use of structural constrain seems to be more indicated particularly when the limit is located in zones of low sensitivity for ERT. This work should help interpreters to include their prior information directly into the inversion process through an appropriate way. [less ▲]Detailed reference viewed: 13 (2 ULg) Spore assemblages from Upper Ordovician and lowermost Silurian sediments recovered from the Qusaiba-1 shallow core hole, Qasim region, central Saudi ArabiaWellman, Charles H.; Steemans, Philippe ; Miller, M.A.in GeoArabia (in press)Detailed reference viewed: 25 (2 ULg) Reproductive ecology of Coula edulis Baill.: source of a valuable non-timber forest productMoupela, Christian ; Doucet, Jean-Louis ; Daïnou, Kasso et alin Tropical Ecology (in press), 55Detailed reference viewed: 45 (26 ULg) CD36: linking lipids to the NLRP3 inflammasome, atherogenesis and atherothrombosisOury, Cécile in Cellular & Molecular Immunology (in press)Uptake of the atherogenic lipid mediator oxLDL by CD36 results in the formation of intracellular cholesterol crystals that caused lyso¬somal destabilization and NLRP3 activation. oxLDL not only primes ... [more ▼]Uptake of the atherogenic lipid mediator oxLDL by CD36 results in the formation of intracellular cholesterol crystals that caused lyso¬somal destabilization and NLRP3 activation. oxLDL not only primes, via a NF-κB-dependent pathway, but also activates NLRP3. CD36-mediated inflammasome activation provides an early pathogenic pathway that links cholesterol accumulation to the chronic inflammatory process of atherosclerosis. During atherogenesis, activated or injured endothelial cells, leucocytes and platelets release ATP that acts in a paracrine manner to transduce sterile inflammatory signals. Among these signals, P2X7 receptors mediate K+ efflux leading to NLRP3 activation. Since ATP assembles ASC complexes in oxLDL-treated macrophages, P2X7 receptors and CD36 may cooperate in vivo to activate NLRP3 inflammasome, contributing to plaque formation. Besides macrophages, CD36 is expressed on platelets where it mediates oxLDL-dependent platelet activation and potentially further IL-1β release. P2X7 receptors contributes to protein disulfide isomerase (PDI) tissue factor-dependent thrombosis. Consequently, both CD36 and P2X7 receptors may be involved in atherothrombosis upon plaque rupture. [less ▲]Detailed reference viewed: 18 (1 ULg) Mechanism of the medium-duration afterhyperpolarization in rat serotonergic neuronsAlix, Philippe ; Venkatesan, Kumar; Scuvée, Jacqueline et alin European Journal of Neuroscience (in press)Most serotonergic neurons display a prominent medium-duration afterhyperpolarization (mAHP), which is mediated by small conductance Ca2+-activated K+ (SK) channels. Recent ex vivo and in vivo experiments ... [more ▼]Most serotonergic neurons display a prominent medium-duration afterhyperpolarization (mAHP), which is mediated by small conductance Ca2+-activated K+ (SK) channels. Recent ex vivo and in vivo experiments have suggested that SK channel blockade increases the firing rate and/or bursting in these neurons. The purpose of this study was therefore to characterize the source of Ca2+ which activates the mAHP channels in serotonergic neurons. In voltage clamp experiments, an outward current was recorded at -60 mV after a depolarizing pulse to + 100 mV. A supra-maximal concentration of the SK channel blockers apamin or (-)- bicuculline methiodide blocked this outward current. This current was also sensitive to the broad Ca2+ channel blocker Co2+ and was partially blocked by both ω-conotoxin and mibefradil, which are blockers of N-type and T-type Ca2+ channels, respectively. Neither blockers of other voltage-gated Ca2+ channels nor DBHQ, an inhibitor of Ca2+-induced Ca2+ release, had any effect on the SK current. [less ▲]Detailed reference viewed: 17 (5 ULg) Éphémérides pour 2012Daubercies, Laurence in Cahiers Voltaire : Revue Annuelle de la Société Voltaire (in press)Detailed reference viewed: 16 (1 ULg) Host-habitat location by the parasitoid, Nasonia vitripennis Walker (Hymenoptera: Pteromalidae).Frederickx, Christine ; Dekeirsschieter, Jessica ; Verheggen, François et alin Journal of Forensic Sciences (in press)This study investigated the role of odorant cues used during host-habitat location by the generalist parasitoid, Nasonia vitripennis Walker. N vitripennis is a common parasitoid of Dipteran pupae found in ... [more ▼]This study investigated the role of odorant cues used during host-habitat location by the generalist parasitoid, Nasonia vitripennis Walker. N vitripennis is a common parasitoid of Dipteran pupae found in association with decaying carrion. Behavioral assays were used to investigate the host-habitat searching behavior under different scenarios. First, we demonstrated N. vitripennis to be significantly attracted toward odorant cues associated with decaying meat. The biological activity of nine of the volatile molecules constituting the odor of decaying meat were tested on the searching behavior of parasitoid females through two complementary chemoecological approaches: electronantennography (EAG) and olfactometry bioassays. Butanoic acid and butan-1-ol elicited high olfactory responses, but no attraction was induced by these two chemicals. Behavioral assays showed that, among the VOCs tested, methyldisulfanylmethane (DMDS) was the only volatile chemical to induce attraction in N. vitripennis. [less ▲]Detailed reference viewed: 40 (16 ULg) A longitudinal test of the Job Demands-Resources model using perveived stigma and social identityBarbier, Marie; Dardenne, Benoît ; Hansez, Isabelle in European Journal of Work and Organizational Psychology (in press)Detailed reference viewed: 45 (21 ULg) Preliminary description of the diet of Hippopotamus amphibius L. in Loango National Park (Gabon)Michez, Adrien ; Doucet, Jean-Louis ; Dendocker, Nicolas et alin Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (in press)Due to the paucity of suitable habitat, hippos are very rare in the Congo Bassin. Compared to East-African populations, Central African populations of hippos have been less studied. Information found in ... [more ▼]Due to the paucity of suitable habitat, hippos are very rare in the Congo Bassin. Compared to East-African populations, Central African populations of hippos have been less studied. Information found in the literature regarding the animal’s basic ecology is limited. This study focuses on the description of the diet of an isolated hippo population in Loango National Park (Gabon), comparing faecal analysis with a reference collection ofherbaceous species from the savannas. The effectiveness of using faecal analysis versus using the floristic description of hippos’ pastures was demonstrated. The most frequent herbaceous species identified in faeces samples were Paspalum vaginatum, Axonopus compressus, Stenotaphrum secundatum (Poaceae) and Desmodium triflorum (Fabaceae). The voluntary consumption of a dicotyledonous species (Desmodium triflorum) is novel for this species. [less ▲]Detailed reference viewed: 24 (6 ULg) Les nouveautés du droit des marchés publics en quelques mots clés (série) : les mécanismes de liste fermée de candidats sélectionnés et de pré-qualification pour les marchés nationaux (secteur classique)Durviaux, Ann-Lawrence in Marchés et Contrats Publics = Overheidsopdrachten en -Overeenkomsten (in press)Detailed reference viewed: 105 (6 ULg) The RIAD peptidomimetic inhibits HIV-1 replication in humanized NSG miceSingh, Maneesh; Singh, Pratibha; Vaira, Dolores et alin European Journal of Clinical Investigation (in press)Background Increased intracellular concentration of cyclic AMP (cAMP) in T cells is associated with various immunodeficiency conditions including human immunodeficiency virus (HIV) infection. Several ... [more ▼]Background Increased intracellular concentration of cyclic AMP (cAMP) in T cells is associated with various immunodeficiency conditions including human immunodeficiency virus (HIV) infection. Several reports indicate a critical role of activated protein kinase A (PKA) in the susceptibility of cells to HIV infection. We have used a cell permeable, stable peptidomimetic version (P3) of the RI-anchoring disruptor (RIAD), which prevents PKA interaction with A-kinase-anchoring proteins (AKAPs). It is known that RIAD peptide abrogates effects of localized cAMP signalling through anchored type I PKA in lymphocytes and prevents murine AIDS (MAIDS) infection when expressed as a transgene in mice. Methods and Results In vitro HIV-infected human peripheral blood mononuclear cells (PBMCs) show reduced levels of p24 and intracellular cAMP in T cells when treated with RIAD peptidomimetic (RIAD-P3). Humanized NOD/SCID/IL2cnull (NSG) mice infected with HIV-1 JRCSF and treated with RIAD-P3 (3􏰀5 mg) once every 2 weeks showed significantly reduced levels of viral load at +28, +42 and +56 days and increased CD4 numbers at +56 days after the start of treatment. RIAD-P3-treated humanized mice had lower levels of intracellular cAMP in T cells sorted from splenocytes. Conclusions Treatment with RIAD-P3 limits HIV-1 viral replication and stabilizes CD4 levels by mechanisms involving cAMP/PKA-I pathway in human PBMCs and humanized NSG mice. [less ▲]Detailed reference viewed: 5 (1 ULg) Social Coops: When Social Enterprises Meet the Cooperative TraditionDefourny, Jacques ; Nyssens, Marthein Journal of Entrepreneurial and Organizational Diversity (in press)Detailed reference viewed: 78 (9 ULg) An open-air site from the recent Middle Palaeolithic in the Paris Basin (France): Les Bossats at Ormesson (Seine-et-Marne).Bodu, Pierre; Salomon, Hélène ; Leroyer, Mathieu et alin Quaternary International (in press)In northern France, most of the sites attributed to the Middle Palaeolithic are open-air sites in which mainly lithic artefacts are found, due to taphonomic conditions often unfavourable to the ... [more ▼]In northern France, most of the sites attributed to the Middle Palaeolithic are open-air sites in which mainly lithic artefacts are found, due to taphonomic conditions often unfavourable to the preservation of fauna. The lithic assemblages found in most of those open-air sites suggest that the activities on the camp sites were diversified, although flint knapping was often intense due to the proximity of sources of raw siliceous materials. With the exception of very rare open-air sites, fauna is poorly preserved and spatial and economic analyses may often be based on the spatial distribution of lithic artefacts, in particular based on refits and their analysis. Therefore the palaeoethnological approach is difficult to implement in most open-air areas. In contrast, in the Paris Basin, the study of more recent sites from the Tardiglacial, such as the Magdalenian sites of Pincevent or Etiolles, falls within this approach. The recent discovery (2009) and excavation of the open-air site of Ormesson (Seine-et-Marne - France) was initially intended to document a Gravettian occupation floor dated around 26,000 years uncal BP and related to a preferential bison hunt. Whilst checking the thickness of the loess in which the Gravettian level was found, several other prehistoric settlements were discovered (Chatelperronian, Middle Solutrean) including two units attributed to the Middle Palaeolithic. One of them, level 4, seems to be particularly well-preserved. It occurs between one and three meters below the main Upper Palaeolithic occupation. The lithic industry from level 4 belongs to a technical tradition generally attributed to the Middle Palaeolithic: discoid technology. The freshness of the material and the presence of bone fragments attributed in part to horse support a general good state of preservation of this occupation. The Mousterian remains seem to cover at least 500 m2, as currently estimated. Even more exceptional is the close spatial relationship between the discoid industry, the bone pieces, remains of fireplaces and especially the numerous fragments and nodules of red colouring materials. These were brought to the site where they were utilised by the Mousterians. The used surfaces show indisputable scraping traces and facets. These recent discoveries will certainly contribute to the debate on the cognitive capacities of nearly the last representatives of the Middle Palaeolithic and this within a complex stratigraphy which will allow us to make comparisons between the different periods. [less ▲]Detailed reference viewed: 44 (4 ULg) A.P.M.H. Lardinois, J.H Blok et M.G.M. Van der Poel, Sacred Words: Orality, Literacy and Religion, Leiden-Boston, Brill, 2011Delli Pizzi, Aurian in Antiquité Classique : Revue Interuniversitaire d'Etudes Classiques (in press)Detailed reference viewed: 15 (3 ULg) Facultative paedomorphosis and the pattern of intra- and interspecific variation in cranial skeleton: lessons from European newts (Ichthyosaura alpestris and Lissotriton vulgaris)Ivanović, Ana; Cvijanović, Milena; Denoël, Mathieu et alin Zoomorphology (in press)Paedomorphosis, the presence of ancestral larval and juvenile traits that occur at the descendent adult stage, is an evolutionary phenomenon that shaped morphological evolution in many vertebrate lineages ... [more ▼]Paedomorphosis, the presence of ancestral larval and juvenile traits that occur at the descendent adult stage, is an evolutionary phenomenon that shaped morphological evolution in many vertebrate lineages, including tailed amphibians. Among salamandrid species, paedomorphic and metamorphic phenotypes can be observed within single populations (facultative paedomorphosis). Despite wide interest in facultative paedomorphosis and polymorphism produced by heterochronic changes (heterochronic polymorphism), the studies that investigate intraspecific morphological variation in facultative paedomorphic species are largely missing. By quantifying the cranium size and development (bone development and remodeling), we investigated the variation at multiple levels (i.e., between sexes, populations and species) of two facultatively paedomorphic European newt species: the alpine and the smooth newt. The pattern of variation between paedomorphs (individuals keeping larval traits at the adult stage) and metamorphs (metamorphosed adult individuals) varied between species and among populations within a single species. The patterns of variation in size and skull formation appear to be more uniform in the alpine than in the smooth newt, indicating that developmental constraints differed between species (more pronounced in alpine than in smooth newt). Our study shows that the cranial skeleton provides detailed insight in the pattern of variation and divergence in heterochronic polymorphism within and between species and open new questions related to heterochronic polymorphism and evolution of cranial skeleton. [less ▲]Detailed reference viewed: 44 (28 ULg) A generic approach for solving nonlinear-discrete security-constrained power flow problems in large-scale systemsPlatbrood, Ludovic; Capitanescu, Florin; Crisciu, Horia et alin IEEE Transactions on Power Systems (in press)This paper proves the practicality of an iterative algorithm for solving realistic large-scale SCOPF problems. This algorithm is based on the combination of a contingency filtering scheme, used to ... [more ▼]This paper proves the practicality of an iterative algorithm for solving realistic large-scale SCOPF problems. This algorithm is based on the combination of a contingency filtering scheme, used to identify the binding contingencies at the optimum, and a network compression method, used to reduce the complexity of the post-contingency models included in the SCOPF formulation. We show that by combining these two complementary ideas, it is possible to solve in a reasonable time SCOPF problems on large power system models with a large number of contingencies. Unlike most results reported for large-scale SCOPF problems, our algorithm uses a non-linear AC network model in both pre-contingency and post-contingency states, optimizes both active/reactive powers flows jointly, and treats the discrete variables. The proposed algorithm is implemented with state-of-the-art solvers and applied to two systems: a national grid with 2563 buses and 1297 contingencies, and a model of the European transmission network with 9241 buses and 12000 contingencies. [less ▲]Detailed reference viewed: 17 (2 ULg) Investigating word recognition in intercomprehension: methods and findingsMöller, Robert ; Zeevaert, Ludger in Linguistics (in press), 53(2), Detailed reference viewed: 51 (15 ULg) Compte rendu de l'ouvrage de A. Mastrocinque et C. Giuffré Scibona (éd.), "Demeter, Isis, Vesta, and Cybele"Veymiers, Richard in Revue Archéologique (in press)Detailed reference viewed: 21 (0 ULg) Discrimination of Isobaric Leu/Ile Residues by MALDI In-source Decay Mass SpectrometryAsakawa, Daiki; Smargiasso, Nicolas ; De Pauw, Edwin in Journal of the American Society for Mass Spectrometry (in press)MALDI in-source decay (ISD) has been used for the top-down sequencing of proteins. The use of 1,5-diaminonapthalene (1,5-DAN) gave strong intensity of w ions, which are informative fragments and can be ... [more ▼]MALDI in-source decay (ISD) has been used for the top-down sequencing of proteins. The use of 1,5-diaminonapthalene (1,5-DAN) gave strong intensity of w ions, which are informative fragments and can be helpful for the distinction of the isobaric amino acids, Leu and Ile. Our data suggests that the w fragments are formed from z* radical fragment by unimolecular dissociation and high abundance of w ions in MALDI-ISD with 1,5-DAN can be understood as resulting from the low collision rate in the MALDI plume. The MALDI-ISD with 1,5-DAN could be a useful method for the top-down sequencing of proteins including discrimination of Leu and Ile near the C-terminal end. [less ▲]Detailed reference viewed: 57 (9 ULg) La première interprétation heideggérienne de la MonadologiePieron, Julien in Philosophie (in press)Detailed reference viewed: 25 (5 ULg) Detection of Usutu virus in a bullfinch (Pyrrhula pyrrhula) and a great spotted woodpecker (Dendrocopos major) in north-west EuropeGarigliany, Mutien-Marie ; Marlier, Didier ; Tenner-Racz, Klara et alin Veterinary Journal (in press)In October 2012, a 3-year-old bullfinch (Pyrrhula pyrrhula) held in captivity for its entire lifespan and a wild adult great spotted woodpecker (Dendrocopos major), both with neurological signs, were ... [more ▼]In October 2012, a 3-year-old bullfinch (Pyrrhula pyrrhula) held in captivity for its entire lifespan and a wild adult great spotted woodpecker (Dendrocopos major), both with neurological signs, were found 4 km from each other and 5 days apart in the Meuse Valley, Belgium. Non-suppurative encephalitis and mild degeneration and necrosis were identified in the brain and cerebellum, and Usutu virus antigen and RNA were detected by immunohistochemistry and real-time reverse transcriptase PCR, respectively. The two cases reported here represent the most western distribution of clinical disease in birds due to Usutu virus. [less ▲]Detailed reference viewed: 34 (22 ULg) Mary Anning’s legacy to French vertebrate palaeontologyVincent, Peggy; Taquet, Philippe; Fischer, Valentin et alin Geological Magazine (in press)The real nature of marine reptile fossils found in England in between the 1700s to the beginning of the 1900s remained enigmatic, until Mary Anning's incredible fossil discoveries and their subsequent ... [more ▼]The real nature of marine reptile fossils found in England in between the 1700s to the beginning of the 1900s remained enigmatic, until Mary Anning's incredible fossil discoveries and their subsequent study by eminent English and French scientists. In 1820, Georges Cuvier acquired several ichthyosaur specimens found by Mary Anning, now kept or displayed in the Palaeontology Gallery of the MNHN in Paris. Four years later, Cuvier obtained a plesiosaur specimen from Mary Anning, only the second ever discovered. Cuvier was fascinated by these fossils and their study allowed him to apply his comparative anatomical method and to support his catastrophist theory. We re-examined these important specimens from an historical point of view and herein describe them taxonomically for the first time since Cuvier’s works. The Paris specimens belong to two different ichthyosaur genera (Ichthyosaurus and Leptonectes) and one plesiosaur genus (Plesiosaurus). [less ▲]Detailed reference viewed: 128 (2 ULg) Use of lipases for the kinetic resolution of lactic acid esters in heptane or in a solvent free systemRichard, Gaëtan; Nott, Katherine ; Nicks, François et alin Journal of Molecular Catalysis B : Enzymatic (in press), 97tKinetic resolution of d,l-ethyl lactate (d,l-LA-Et) and d,l-butyl lactate (d,l-LA-Bu) was accomplished inthe presence of lipases. Transesterification of the lactate esters with alcohols was shown to be ... [more ▼]tKinetic resolution of d,l-ethyl lactate (d,l-LA-Et) and d,l-butyl lactate (d,l-LA-Bu) was accomplished inthe presence of lipases. Transesterification of the lactate esters with alcohols was shown to be poorlyenantioselective, with a very low preference toward the l enantiomer. However, esterification of the freehydroxyl function of the lactate esters was much more enantioselective, with an opposite preferencetoward the d form. Among the 200 combinations screened (substrates and lipases), only two reactionsfulfilled the required criteria for an efficient resolution (fast reaction, enantioselectivity ratio higherthan 100). The best resolution was obtained by esterification of d,l-LA-Bu with butyric anhydride inthe presence of lipase B from Candida antarctica (CAL-B) in heptane (at 30◦C): LA-Bu was resolved in6 h with an initial esterification rate of d-LA-BU of 1.5 g L−1h−1g−1EZ, an enantioselectivity ratio higherthan 100, a l substrate consumption lower than 1%, and a final substrate enantiomeric excess superiorto 99%. After having demonstrated that neither LA-Bu nor BuAn were inhibitors of CAL-B, the reactionwas further improved by carrying it out in a solvent free system, at an elevated temperature (60◦C), andat a higher lipase concentration. LA-Bu was resolved in 6 h with an initial rate of 7.6 g L−1h−1g−1EZ, anenantioselectivity ratio higher than 100, and a final substrate enantiomeric excess of 95%. [less ▲]Detailed reference viewed: 16 (7 ULg) A Text Structure Indicator and two Topological Methods: New Ways for Studying Latin Historic NarrativesLongrée, Dominique ; Mellet, Sylviein International Journal of Corpus Linguistics (in press)Detailed reference viewed: 8 (1 ULg) BeAMS: a Beacon based Angle Measurement Sensor for mobile robot positioningPierlot, Vincent ; Van Droogenbroeck, Marc in IEEE Transactions on Robotics (in press)Positioning is a fundamental issue in mobile robot applications, and it can be achieved in multiple ways. Among these methods, triangulation based on angle measurements is widely used, robust, accurate ... [more ▼]Positioning is a fundamental issue in mobile robot applications, and it can be achieved in multiple ways. Among these methods, triangulation based on angle measurements is widely used, robust, accurate, and flexible. This paper presents BeAMS, a new active beacon-based angle measurement system used for mobile robot positioning. BeAMS introduces several major innovations. One innovation is the use of a unique unsynchronized channel with On-Off Keying modulated infrared signals to measure angles and to identify the beacons. We also introduce a new mechanism to measure angles: our system detects a beacon when it enters and leaves an angular window. We show that the estimator resulting from the center of this angular window provides an unbiased estimate of the beacon angle. A theoretical framework for a thorough performance analysis of BeAMS is provided. We establish the upper bound of the variance and validate this bound through experiments and simulations; the overall error measure of BeAMS is lower than 0.24 deg for an acquisition rate of 10 Hz. In conclusion, BeAMS is a low power, flexible, and robust solution for angle measurement, and a reliable component for robot positioning. [less ▲]Detailed reference viewed: 30 (5 ULg) Fernand De Visscher et la Société Internationale d'Histoire des Droits de l'AntiquitéGerkens, Jean-François in Revue Historique de Droit Français et Etranger [=RHD] (in press)Detailed reference viewed: 37 (5 ULg) Staging chronic kidney disease and estimating glomerular filtration rate: an opinion paper about the new international recommendationsDELANAYE, Pierre ; CAVALIER, Etienne in Clinical Chemistry & Laboratory Medicine (in press)Abstract: In January 2013, the international recommendations of the KDIGO (for “ Kidney Disease: Improving Global Outcomes ” ) to define chronic kidney disease (CKD) and classify patients in CKD stages ... [more ▼]Abstract: In January 2013, the international recommendations of the KDIGO (for “ Kidney Disease: Improving Global Outcomes ” ) to define chronic kidney disease (CKD) and classify patients in CKD stages have been published. In this opinion article, we will review and discuss the most important guidelines proposed about CKD staging and glomerular filtration rate (GFR) estimating. In particular, we question the choice of fixed knot values at 60 mL/min/1.73 m ² to define CKD. We also question the strategies proposed to measure and use cystatin C results. [less ▲]Detailed reference viewed: 34 (7 ULg) Development of a quantitative approach using surface-enhanced Raman chemical imaging: First step for the determination of an impurity in a pharmaceutical modelDe Bleye, Charlotte ; Sacre, Pierre-Yves ; Dumont, Elodie et alin Journal of Pharmaceutical & Biomedical Analysis (in press)This publication reports, for the first time, the development of a quantitative approach using surface-enhanced Raman chemical imaging (SER-CI). A pharmaceutical model presented as tablets based on ... [more ▼]This publication reports, for the first time, the development of a quantitative approach using surface-enhanced Raman chemical imaging (SER-CI). A pharmaceutical model presented as tablets based on paracetamol, which is the most sold drug around the world, was used to develop this approach. 4-Aminophenol is the main impurity of paracetamol and is actively researched in pharmaceutical formulations because of its toxicity. As its concentration is generally very low (<0.1%, w/w), conventional Raman chemical imaging cannot be used. In this context, a SER-CI method was developed to quantify 4-aminophenol assessing a limit of quantification below its limit of specification of 1000 ppm. Citrate-reduced silver nanoparticles were used as SERS substrate and these nanoparticles were functionalized using 1-butanethiol. Different ways to cover the tablets surface by butanethiol-functionalized silver nanoparticles were tested and a homogeneity study of the silver nanoparticles covering was realized. This homogeneity study was performed in order to choose the best way to cover the surface of tablets by silver colloid. Afterwards, the optimization of the SER-CI approach was necessary and different spectral intensity normalizations were tested. Finally, a quantitative approach using SER-CI was developed enabling to quantify 4-aminophenol from 0.025% to 0.2% in paracetamol tablets. This quantitative approach was tested on two different series of tablets using different batches of silver nanoparticles. [less ▲]Detailed reference viewed: 15 (9 ULg) Dalle sabbie all’apparato. Riflessioni su due recenti contributi alla Storia della Tradizione di Livio e SallustioScappaticcio, Maria Chiara in Athenaeum : Studii Periodici di Letteratura e Storia (in press)Detailed reference viewed: 7 (0 ULg) A New Three Object Triangulation Algorithm for Mobile Robot PositioningPierlot, Vincent ; Van Droogenbroeck, Marc in IEEE Transactions on Robotics (in press)Positioning is a fundamental issue in mobile robot applications. It can be achieved in multiple ways, among which triangulation based on angles measured with the help of beacons is a proven technique ... [more ▼]Positioning is a fundamental issue in mobile robot applications. It can be achieved in multiple ways, among which triangulation based on angles measured with the help of beacons is a proven technique. Most of the many triangulation algorithms proposed so far have major limitations. For example, some of them need a particular beacon ordering, have blind spots, or only work within the triangle defined by the three beacons. More reliable methods exist, but they have an increasing complexity or they require to handle certain spatial arrangements separately. In this paper, we present a simple and new three object triangulation algorithm, named ToTal, that natively works in the whole plane, and for any beacon ordering. We also provide a comprehensive comparison between many algorithms, and show that our algorithm is faster and simpler than comparable algorithms. In addition to its inherent efficiency, our algorithm provides a very useful and unique reliability measure, assessable anywhere in the plane, which can be used to identify pathological cases, or as a validation gate in Kalman filters. [less ▲]Detailed reference viewed: 41 (4 ULg) Des intentions aux actes : la volition en conseil d'orientationBroonen, Jean-Paul in L'Orientation Scolaire et Professionnelle (in press)A model limited to motivation construct to explain the way from setting a vocational goal to its achievement cannot claim to give an account of how to overcome regulatory problems during goal striving. A ... [more ▼]A model limited to motivation construct to explain the way from setting a vocational goal to its achievement cannot claim to give an account of how to overcome regulatory problems during goal striving. A model linking volition to motivation is needed. In particular, implementation intentions have been proved to be effective in helping the initiation of goal striving, shielding goal pursuit from unwelcome influences, and disengagement from not successful courses of action. It is proposed to extend the application of this volitional cognitive tool to career counselling. [less ▲]Detailed reference viewed: 59 (13 ULg) compte rendu de : Eleanor DICKEY, The Colloquia of the Hermeneumata Pseudodositheana. Volume I. Colloquia Monacensia-Einsidlensia, Leidense-Stephani, and Stephani, Cambridge, Cambridge University Press, 2012. 1 vol. 21,5 x 28,5, XI-276 p. (CAMBRIDGE CLASSICAL TEXTS AND COMMENTARIES, 49). ISBN : 978-1-107-02010-8.Rochette, Bruno in Gnomon : Kritische Zeitschrift für die Gesamte Klassische Altertumswissenschaft (in press)Detailed reference viewed: 22 (0 ULg) La performance de l'entreprise sociale : définitions et limites d'une évaluation monétaireMertens de Wilmars, Sybille ; Marée, Michel in Revue Internationale P.M.E. (in press)In a social enterprise, the notion of "performance" must be understood in a broader sense than the sole financial profitability. Because enterprises of this type pursue a social mission, whose completion ... [more ▼]In a social enterprise, the notion of "performance" must be understood in a broader sense than the sole financial profitability. Because enterprises of this type pursue a social mission, whose completion generates collective impacts, one has to go beyond what is made possible by the sole market-based indicators. This requires to revise not only the very notion of production, but also the way in which the value of what is produced by the enterprise is measured. This is the task that the authors of the present article tackle, through building a definition of performance understood as "enlarged production" – a notion which they nevertheless define with accuracy. Whenever the notion of production is enlarged so as to take into account the impacts of the latter, the question of whether this approach is also operational unavoidably arises. In particular, one must ask oneself whether the impacts that one wants to include in an enlarged conception of production are measurable. By nature, these impacts are not taken into account by the market and measuring them sends back to the classical question of the evaluation of non-market goods. The authors draw up an inventory of the various techniques of monetary evaluation of the value of non-market goods and indicate whether these techniques are likely to lead to values that are relevant to evaluate the performance of a social enterprise. They illustrate their analysis by applying this grid of analysis to the methodology of social return on investment (SROI). Because of the theoretical limits of monetary evaluation, the authors conclude that works on performance evaluation based on multi-criteria analyses must be further pursued. [less ▲]Detailed reference viewed: 167 (21 ULg) Rôle et langue de Tchantchès dans les représentations en castelets des romans de chevalerie : le cas des Quatre fils AymonBaiwir, Esther ; Impe, Anaëllein Enquêtes du Musée de la Vie Wallonne (in press)Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du ... [more ▼]Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du répertoire liégeois ? Quels sont ses moyens d'action, mais également ses modes d'expression ? Divers registres de langue apparaissent au fil des spectacles ; quels sont ceux prêtés à notre héros ? Et surtout, ce rôle et cette langue ont-ils évolué au fil du temps ? C’est à ces quelques questions que nous tentons de répondre, en observant les différentes interventions de Tchantchès dans les réécritures des aventures des quatre fils Aymon, l’une des œuvres les plus anciennes et les plus fréquemment jouées dans les théâtres liégeois dévolus aux comédiens de bois. [less ▲]Detailed reference viewed: 25 (7 ULg) A Super-Jupiter orbiting a late-type star: A refined analysis of microlensing event OGLE-2012-BLG-0406Tsapras, Y.; Choi, J.-Y.; Street, R. A. et alin Astrophysical Journal (in press)We present a detailed analysis of survey and follow-up observations of microlensing event OGLE-2012-BLG-0406 based on data obtained from 10 different observatories. Intensive coverage of the lightcurve ... [more ▼]We present a detailed analysis of survey and follow-up observations of microlensing event OGLE-2012-BLG-0406 based on data obtained from 10 different observatories. Intensive coverage of the lightcurve, especially the perturbation part, allowed us to accurately measure the parallax effect and lens orbital motion. Combining our measurement of the lens parallax with the angular Einstein radius determined from finite-source effects, we estimate the physical parameters of the lens system. We find that the event was caused by a $2.73\pm 0.43\ M_{\rm J}$ planet orbiting a $0.44\pm 0.07\ M_{\odot}$ early M-type star. The distance to the lens is $4.97\pm 0.29$\ kpc and the projected separation between the host star and its planet at the time of the event is $3.45\pm 0.26$ AU. We find that the additional coverage provided by follow-up observations, especially during the planetary perturbation, leads to a more accurate determination of the physical parameters of the lens. [less ▲]Detailed reference viewed: 13 (3 ULg) Conditions, limites et conséquences de l’intervention philosophique dans la conjoncture. Althusser à l’épreuve de RancièreMancuso, Eva in Cahiers du GRM (in press)Detailed reference viewed: 10 (7 ULg) Electromechanical FEM models and electrostatic forces near sharp cornersHannot, Stephan; Rixen, Daniel; Andreykiv, Andriy et alin International Journal for Numerical Methods in Engineering (in press)Accounting for multiphysical coupling in models of Micro Electro Mechanical Systems (MEMS) is essential for accurate simulations. One essential multiphysical effect in MEMS is the electromechanical ... [more ▼]Accounting for multiphysical coupling in models of Micro Electro Mechanical Systems (MEMS) is essential for accurate simulations. One essential multiphysical effect in MEMS is the electromechanical coupling since electrostatic forces are often used for actuation or sensing in those devices. Often MEMS are designed such that their shape exhibits many corners. In this paper two different numerical approaches are used to model this coupling using the Finite Element Method: the electrostatic forces are either derived from the variational approach or a local approach based on the Maxwell stress tensor such as implemented in commercial Finite Element codes. The evaluation of electrostatic forces near corners is investigated in detail and in this paper the two approaches are compared around corners. Although the issue of numerical models around singularities is not new, the question addressed here is related to the computation of electric forces in the vicinity of corners. Since those forces are quadratic functions of the electric field, namely the gradient of the electric potential, here the primal unknown, computing those forces accurately is a challenge in itself. Elements which use special shape functions are used to discretize the field near this corner singularity as well. In the work presented here, it is shown that a significant discrepancy appears in the electrostatic force computed around a corner depending on the discretization approach considered, and we conclude that the variational approach or equivalently the full Maxwell tensor should be used to properly evaluate electrostatic forces around corners. [less ▲]Detailed reference viewed: 65 (4 ULg) Reversibly crosslinked thermo- and redox-responsive nanogels for controlled drug releaseLiu, Ji ; Detrembleur, Christophe ; Hurtgen, Marie et alin Polymer Chemistry (in press)Reversibly crosslinked poly(vinyl alcohol)-b-poly(N-vinylcaprolactam) PVOH-b-PNVCL nanogels were prepared by using a redox-responsive crosslinking agent, 3,30-dithiodipropionic acid (DPA), to crosslink ... [more ▼]Reversibly crosslinked poly(vinyl alcohol)-b-poly(N-vinylcaprolactam) PVOH-b-PNVCL nanogels were prepared by using a redox-responsive crosslinking agent, 3,30-dithiodipropionic acid (DPA), to crosslink the PVOH corona, above the lower critical solution temperature (LCST) of the PNVCL block. The stability of the as-prepared nanogels against heating and diluting with water was studied by dynamic light scattering (DLS) to follow the evolution of the hydrodynamic diameter and size distribution. Stability under reductive conditions was also studied by DLS and transmission electron microscopy (TEM) after exposure to dithiothreitol (DTT) buffer solutions at different pH. The reversibility of the crosslinking was evaluated by treating the de-crosslinked nanogels with hydrogen peroxide (H2O2) above the LCST. As a hydrophobic drug model, Nile red (NR) was loaded into the nanogels, and triggered release behaviours were studied after exposure to the same DTT buffer solutions. Moreover, two PVOH-b-PNVCL copolymers with different compositions and LCST were used to evaluate the effect of the LCST on the release behaviours of the nanogels. The cytotoxicity of the nanogels against a mouse fibroblast-like L929 cell line was assessed via the MTS assay, and preliminary studies on cellular uptake of the nanogels within human melanoma MEL-5 cells were also carried out by fluorescence microscopy and fluorescence-activated cell sorting. [less ▲]Detailed reference viewed: 22 (8 ULg) Thiamine triphosphatase and the CYTH family of proteinsBettendorff, Lucien ; Wins, Pierrein FEBS Journal (in press)The CYTH superfamily of proteins was named after its two founding members, the CYaB adenylyl cyclase from Aeromonas hydrophila and the human 25 kDa THiamine triphosphatase (ThTPase). Members of this ... [more ▼]The CYTH superfamily of proteins was named after its two founding members, the CYaB adenylyl cyclase from Aeromonas hydrophila and the human 25 kDa THiamine triphosphatase (ThTPase). Members of this superfamily of proteins exist in all organisms including bacteria, archaea, fungi, plants and animals (except birds) and can be traced back to the Last Universal Common Ancestor. Their sequences include several charged residues involved in divalent cation and triphosphate binding. Indeed, all members of the CYTH family that have been characterized act on triphosphorylated substrates and require at least one divalent metal cation for catalysis. In most cases, the enzyme-substrate complex adopts a tunnel-like (ß-barrel) conformation. The Nitrosomonas europaea and E.coli CYTH proteins are specific inorganic triphosphatases. We propose that inorganic triphosphate, the simplest triphosphate compound, is the primitive substrate of CYTH proteins. Other enzyme activities such as adenylate cyclase (in A. hydrophila and Y. pestis), mRNA triphosphatase (in fungi and protozoans) and ThTPase (in metazoans) are secondary acquisitions. ThTPase activity is not limited to mammals, but sea anemone and zebrafish CYTH proteins are already specific ThTPases and the acquisition of this enzyme activity is linked to the presence of a Trp (W53 in mammalian ThTPases) residue involved in the binding of the thiazole heterocycle of the thiamine molecule. Furthermore, we propose a conserved catalytic mechanism between a bacterial inorganic triphosphatase and metazoan ThTPases, based on a catalytic dyad comprising a Lys and a Tyr residue, explaining the alkaline pH optimum of these enzymes. [less ▲]Detailed reference viewed: 8 (8 ULg) An astronomical survey conducted in BelgiumNazé, Yaël ; Fontaine, Sébastien in Physics Education (in press)This article presents the results of the first survey conducted in Belgium about the interest and knowledge in astronomy. Two samples were studied, the public at large (667 questionnaires) and students ... [more ▼]This article presents the results of the first survey conducted in Belgium about the interest and knowledge in astronomy. Two samples were studied, the public at large (667 questionnaires) and students (2589 questionnaires), but the results are generally similar in both samples. We evaluated people’s interest, main information source, and attitudes towards astronomy, as well as their supposed and actual knowledge of the subject. The main conclusion is that, despite a poor self-confidence, people do know the basic astronomical concepts. However, that knowledge is not deeply rooted, as reasoning questions show well-spread misconceptions and/or misunderstandings. [less ▲]Detailed reference viewed: 14 (5 ULg) An algorithm for the separation of two-row cutsLouveaux, Quentin ; Poirrier, Laurent in Mathematical Programming (in press)We consider the question of finding deep cuts from a model with two rows of the type PI = {(x,s) ∈ Z2 ×Rn+ : x = f +Rs}. To do that, we show how to reduce the complexity of setting up the polar of conv(PI ... [more ▼]We consider the question of finding deep cuts from a model with two rows of the type PI = {(x,s) ∈ Z2 ×Rn+ : x = f +Rs}. To do that, we show how to reduce the complexity of setting up the polar of conv(PI ) from a quadratic number of integer hull computations to a linear number of integer hull computations. Furthermore, we present an algorithm that avoids computing all integer hulls. A polynomial running time is not guaranteed but computational results show that the algorithm runs quickly in practice. [less ▲]Detailed reference viewed: 59 (14 ULg)