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See detailOntogenic variation and effect of collection procedure on leaf biomechanical properties of Mediterranean seagrass Posidonia oceanica (L.) Delile
de los santos, Carmen; Vicencio, Barbara; Lepoint, Gilles ULg et al

in Marine Ecology (2016)

Leaf mechanical traits are important to understand how aquatic plants fracture and deform when subjected to abiotic (currents or waves) or biotic (herbivory attack) mechanical forces. The likely ... [more ▼]

Leaf mechanical traits are important to understand how aquatic plants fracture and deform when subjected to abiotic (currents or waves) or biotic (herbivory attack) mechanical forces. The likely occurrence of variation during leaf onto- geny in these traits may thus have implications for hydrodynamic performance and vulnerability to herbivory damage, and may be associated with changes in morphologic and chemical traits. Seagrasses, marine flowering plants, consist of shoot bundles holding several leaves with different developmental stages, in which outer older leaves protect inner younger leaves. In this study we examined the long-lived seagrass Posidonia oceanica to determine ontogenic variation in mechanical traits across leaf position within a shoot, representing different devel- opmental stages. Moreover, we investigated whether or not the collection proce- dure (classical uprooted shoot versus non-destructive shoot method: cutting the shoot without a portion of rhizome) and time span after collection influence mechanical measurements. Neither collection procedure nor time elapsed within 48 h of collection affected measurements of leaf biomechanical traits when sea- grass shoots were kept moist in dark cool conditions. Ontogenic variation in mechanical traits in P. oceanica leaves over intermediate and adult developmen- tal stages was observed: leaves weakened and lost stiffness with aging, while mid- aged leaves (the longest and thickest ones) were able to withstand higher break- ing forces. In addition, younger leaves had higher nitrogen content and lower fiber content than older leaves. The observed patterns may explain fine-scale within-shoot ecological processes of leaves at different developmental stages, such as leaf shedding and herbivory consumption in P. oceanica. [less ▲]

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See detailEfficiency of delivery observed treatment in hemodialysis patients: the example of the native vitamin D therapy
DELANAYE, Pierre ULg; CAVALIER, Etienne ULg; Fafin, Coraline et al

in Journal of Nephrology (2016), 29(1), 99-103

Introduction Adherence to therapy is a relevant challenge in chronic hemodialysis patients. The directly observed therapy (DOT) could be an effective method to increase adherence for specific therapies ... [more ▼]

Introduction Adherence to therapy is a relevant challenge in chronic hemodialysis patients. The directly observed therapy (DOT) could be an effective method to increase adherence for specific therapies. We aimed to study the performance of DOT versus home medication. We follow the impact of providing native vitamin D directly by the nurse after a dialysis session on the 25-hydroxyvitamin [25(OH)D] concentrations. Methods In this observational study, we included 38 dialysis patients treated by stable dosage of cholecalciferol. DOT was implemented in December 2010. We considered the concentrations of 25-OH vitamin D three times before (T1 = June 2010, T2 = July 2010 and T3 = September 2010) and three times after the modification of prescription (T4 = February 2011, T5 = March 2011 and T6 = April 2011). Results Median age was 72 [62; 79] years and 48 % were diabetics. Mean body mass index was 26 ± 5 kg/m2 and median dialysis vintage was 20 [8; 46] months. The patients were compared to themselves. Before DOT, median concentrations of 25(OH)D were 27 (14–36), 23 (17–31), 31 (22–38) ng/mL at T1, T2 and T3, respectively. When DOT was effective, the concentrations significantly increased to 34 (28–44), 35 (29–41), 39 (32–47) ng/mL at T4, T5 and T6, respectively. Before DOT, 19 patients (50 %) reached the target of 30 ng/mL. After DOT, 29 patients (76 %) reached the target concentration of 30 ng/ mL. Conclusions In hemodialysis patients, DOT is both simple and effective to increase the therapeutic impact to native vitamin D. [less ▲]

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See detailDeprivation of citizenship for 'jihadists' Analysis of Belgian and French practice and policy in light of the principle of equal treatment
Wautelet, Patrick ULg

in Kruiniger, Pauline (Ed.) Jihad, Islam en Recht. Jihadisme en reacties vanuit het Nederlandse en Belgische recht (2016)

In the fight against terrorism States have resorted to a variety of weapons. Much attention has been devoted to criminal law as a possible answer to terrorism. Many States have also resorted to ... [more ▼]

In the fight against terrorism States have resorted to a variety of weapons. Much attention has been devoted to criminal law as a possible answer to terrorism. Many States have also resorted to nationality law, using deprivation as a means to punish those involved in terrorism. This paper will focus on Belgium and France. These two countries indeed present striking similarities. Both in France and Belgium the provisions on deprivation already made it possible to deprive a national of his citizenship in terrorist cases. Nevertheless, the legislation in these countries has been recently modified to offer yet a stronger answer to terrorism. The public debate in the two countries is modelled on similar lines. This is in particular true for the issue of equality arising in connection of deprivation of nationality. The paper will first offer an overview of the existing statutory provisions in the two countries, before critically reviewing the discussion on equality and non discrimination. [less ▲]

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See detailFaire de la musique : rythmes et rapports chez Mallarmé
Durand, Pascal ULg

in Bonnet, Antoine; Frangne, Pierre-Henry (Eds.) Mallarmé et la Musique, la Musique et Mallarmé (2016)

Inséparable du processus d'autonomisation du discours poétique et de la radicalisation que ce processus connaît chez lui, sur fond de propagande wagnérienne et de propagation du vers libre, le modèle ... [more ▼]

Inséparable du processus d'autonomisation du discours poétique et de la radicalisation que ce processus connaît chez lui, sur fond de propagande wagnérienne et de propagation du vers libre, le modèle musical prend, dans l'esthétique de Mallarmé, l'aspect d'un système de rapports généralisés à tous les paramètres de l'écrit. L'inhérence réciproque que le poète établit entre la "Musique" et les "Lettres", représentation imaginaire dont Un Coup de dés constitue la contrepartie réalisée, répond d'un côté à un matérialisme de la forme et de l'autre à un idéalisme fictif, voulant que les structures verbales et prosodiques s'offrent en miroir du système de rapports avec quoi se confond, en sa finitude sans extériorité, l’univers même. [less ▲]

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See detailImproving Farmers’ Profitability, Soil and Water Conservation through an Adapted Tillage Technique: Experiences from the Cultivation of Potatoes in Bamiléké’s Hills, Cameroon
Djoukeng, Henri Grisseur ULg; Brostaux, Yves ULg; Tankou, Christopher Mubeteneh et al

in International Journal of Agriculture Innovations and Research (2016), 4(4), 708-716

On farms situated on slopes, such as those in the Western Highlands of Cameroon, the implementation of soil and water conservation techniques remains a major concern. The land preparation methods commonly ... [more ▼]

On farms situated on slopes, such as those in the Western Highlands of Cameroon, the implementation of soil and water conservation techniques remains a major concern. The land preparation methods commonly practiced in the Western Highlands agro-ecological zone of Cameroon are ridging along the steepest slopes (RASS) and the flatbed (FB). Field observations showed FB and RASS promote erosion by runoff, thereby compromising some agriculture functions (environmental function, production function and even social function). In order to ensure soil stability and maintain good water quality for rivers, a new land preparation method, tied ridging (TR), was tested. Erosion by runoff tests were conducted with four blocks of three plots on each of the most commonly exploited slopes, namely 11% and 29% gradient. With the main crop in the area (potato, Solanum tuberosum L.), the performance of RASS, FB, and TR were compared during crop years 2013 and 2014. The water runoff and sediments were collected per plot and per block after every rainfall. The results showed a significant difference between the FB or RASS and TR in terms of soil loss (Fmin(2, 2) = 322.7, p = 0.003), yields (F(2, 2) = 287.7, p = 0.003), and runoff water (Fmin(2, 12) = 2.4x106, p < 0.001). The TR technique generated a 7% increase in seedlings density, a 41% increase in the workforce, and an 81% and 100% increase in yields compared to FB in 11% and 29% slopes, respectively. The TR increased farmer’s profitability by 686 US$.ha-1 and 1420 US$.ha-1 over RASS in 11% and 29% slopes, respectively. The TR showed undeniable advantages: for the producer, the stress of additional work was offset by the gain in yields while creating additional job opportunities and improving the conservation of soil and water. Although the technique has several advantages, the provision of financial means for its implementation could be a negative point. Twelve farmers were involved in the experiment. The test results convinced the participants and other curious farmers who adopted the technology during the second experiment. [less ▲]

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See detailElastin density: Link between histological and biomechanical properties of vaginal tissue in women with pelvic organ prolapse?
DE LANDSHEERE, Laurent ULg; Brieu, Mathias; Blacher, Silvia ULg et al

in International Urogynecology Journal & Pelvic Floor Dysfunction (2016)

INTRODUCTION AND HYPOTHESIS: The aim of the study was to correlate histological and biomechanical characteristics of the vaginal wall in women with pelvic organ prolapse (POP). METHODS: Tissue samples ... [more ▼]

INTRODUCTION AND HYPOTHESIS: The aim of the study was to correlate histological and biomechanical characteristics of the vaginal wall in women with pelvic organ prolapse (POP). METHODS: Tissue samples were collected from the anterior [point Ba; POP Questionnaire (POP-Q)] and/or posterior (point Bp; POP-Q) vaginal wall of 15 women who underwent vaginal surgery for POP. Both histological and biomechanical assessments were performed from the same tissue samples in 14 of 15 patients. For histological assessment, the density of collagen and elastin fibers was determined by combining high-resolution virtual imaging and computer-assisted digital image analysis. For biomechanical testing, uniaxial tension tests were performed to evaluate vaginal tissue stiffness at low (C0) and high (C1) deformation rates. RESULTS: Biomechanical testing highlights the hyperelastic behavior of the vaginal wall. At low strains (C0), vaginal tissue appeared stiffer when elastin density was low. We found a statistically significant inverse relationship between C0 and the elastin/collagen ratio (p = 0.048) in the lamina propria. However, at large strain levels (C1), no clear relationship was observed between elastin density or elastin/collagen ratio and stiffness, likely reflecting the large dispersion of the mechanical behavior of the tissue samples. CONCLUSION: Histological and biomechanical properties of the vaginal wall vary from patient to patient. This study suggests that elastin density deserves consideration as a relevant factor of vaginal stiffness in women with POP. [less ▲]

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See detailInvestigation of a suitable in vitro dissolution test for itraconazole-based solid dispersions
Thiry, Justine ULg; Broze, Guy ULg; Pestieau, Aude ULg et al

in European Journal of Pharmaceutical Sciences (2016)

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See detailThe Implications of Socio-Economic Background for Moroccan Transnational Family Practices
Zickgraf, Caroline ULg

in Vailati, Alex; Rial, Carmen (Eds.) Migration of Rich Immigrants: Gender, Ethnicity, and Class (2016)

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See detailClé d'identification des principales familles d'insectes d'Europe
Mignon, Jacques ULg; Haubruge, Eric ULg; Francis, Frédéric ULg

Book published by Presses agronomiques de Gembloux (2016)

Quelques insectes particuliers sont identifiables du premier coup d’œil ou par comparaison avec des illustrations de qualité. Malheureusement, il s’agit là d’exceptions et l’étude des insectes est souvent ... [more ▼]

Quelques insectes particuliers sont identifiables du premier coup d’œil ou par comparaison avec des illustrations de qualité. Malheureusement, il s’agit là d’exceptions et l’étude des insectes est souvent rendue complexe par la nécessité d’utiliser une loupe binoculaire et de maîtriser un vocabulaire spécifique difficilement accessible aux néophytes. Principalement destinée à l’enseignement de l’entomologie, la présente clé d’identification permet de donner un nom à quelque 180 familles ou super-familles d’insectes parmi les plus couramment rencontrées en Europe. Le vocabulaire utilisé est accessible à toute personne ayant des notions de base de la morphologie des insectes. Un glossaire et des figures permettent de combler certaines lacunes et de donner sens aux critères d’identification rencontrés. Reconnaître un insecte au niveau de la famille permet d’obtenir rapidement des précisions sur sa biologie et constitue une étape indispensable vers une connaissance approfondie des différentes espèces. [less ▲]

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See detailIs adult translocation a credible way to accelerate the recolonization process of Chondrostoma nasus in a rehabilitated river?
Ovidio, Michaël ULg; Hanzen, Céline; Gennotte, Vincent ULg et al

in Cybium (2016), 40(1), 43-49

The decline of the patrimonial rheophilic nase, Chondrostoma nasus (Linnaeus, 1758) populations was mainly caused by construction of dams and hydroelectric power-plants, together with the straightening ... [more ▼]

The decline of the patrimonial rheophilic nase, Chondrostoma nasus (Linnaeus, 1758) populations was mainly caused by construction of dams and hydroelectric power-plants, together with the straightening and artificialization of the river banks and water pollution. In this study, we tested the hypothesis whether the translocation of few adult nase individuals from a river stretch to another upstream may be a credible way to accelerate the recolonization process of the species in the Amblève River (Southern Belgium). In February and March 2011, just before their spawning period, eight adult nases (462-509 mm; 1546-2002 g; presumed males and females) were captured in the lower part of the River Amblève. Fin clip samples were stored in alcohol for further genetic analysis. They were equipped with a 14 g radio transmitter and translocated upstream in a 18 km river stretch, where the species had disappeared since decades due to river anthropization. They were manually located two to five times/week using mobile receivers until maximum June 2012 (n = 977 locations). River temperature and flow were hourly recorded during the entire tracking period. The tagged nase individuals displayed various mobility patterns, exploited different areas of the river stretch, occupied longitudinal home ranges from 3.4 to 36.1 km (one individual finally left the new river stretch) and travelled total distances from 12.2 to 186.6 km. The tagged individuals were most of the times apart from one to another, but most individuals grouped together in potential spawning areas in late March-early April 2011, suggesting an attempt to reproduce. In September 2011, electric fishing in two potential detected spawning sites allowed to capture 16 juvenile (0+) nases, demonstrating the existence of spawning activity in the newly occupied river stretch. Individual genetic characterization was performed in 2014 in order to reveal a possible direct lineage between juveniles and adults. Allelic distribution of 22 microsatellite markers unambiguously identified the 16 juveniles as full-sib progeny descending from two of the translocated adults. This demonstrated that the adult nases succeeded to find spawning areas and that progeny found raised-up from the translocated individuals. [less ▲]

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See detailEffet inflammatoire des extraits de Cupressus sempervirens planté dans l’Est de l’Algérie : du modèle murin à la stimulation des cellules BEAS-2B par l’allergène majeur Cup s 1
Bouguenoun, Imene; De Pauw-Gillet, Marie-Claire ULg; Bensakhri, Z et al

in Revue Française d'Allergologie (2016), 56

Cupressus sempervirens est l’une des espèces les plus répandues en Algérie ayant une capacité allergénique très élevée. Nous avons étudié,d’abord, comment l’instillation nasale des différentes fractions ... [more ▼]

Cupressus sempervirens est l’une des espèces les plus répandues en Algérie ayant une capacité allergénique très élevée. Nous avons étudié,d’abord, comment l’instillation nasale des différentes fractions de l’extrait pollinique de cette espèce peut moduler la réponse immunitaire chez les souris, et, ensuite, la stimulation des cellules épithéliales bronchiques humaines (BEAS-2B) par l’allergène majeur, identifié par spectrométrie de masse et purifié par chromatographie échangeuse d’ions. La sensibilisation des souris a révélé, d’une part, une diminution du nombre de neutrophiles et une augmentation des éosinophiles, et, d’autre part, une augmentation significative du total cellulaire dans le liquide du lavage bronchoalvéolaire.L’étude histologique des poumons a montré une présence d’infiltrat inflammatoire et d’oedème péri-bronchique. La spectrométrie de masse nous a permis de mettre en évidence la présence de l’allergène majeur Cup s 1 dans toutes les fractions avec une présence spécifique du Cup s 3 et Cupa 1 dans la fraction 4. Cet allergène avait le potentiel pour stimuler la libération de l’IL-8 et l’IL-6 par la ligné cellulaire, BEAS-2B, in vitro d’une manière dose-dépendante [less ▲]

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See detailEffects of Dairy Products Consumption on Health: Benefits and Beliefs-A Commentary from the Belgian Bone Club and the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases.
Rozenberg, Serge; Body, Jean-Jacques; Bruyère, Olivier ULg et al

in Calcified Tissue International (2016), 98(1), 1-17

Dairy products provide a package of essential nutrients that is difficult to obtain in low-dairy or dairy-free diets, and for many people it is not possible to achieve recommended daily calcium intakes ... [more ▼]

Dairy products provide a package of essential nutrients that is difficult to obtain in low-dairy or dairy-free diets, and for many people it is not possible to achieve recommended daily calcium intakes with a dairy-free diet. Despite the established benefits for bone health, some people avoid dairy in their diet due to beliefs that dairy may be detrimental to health, especially in those with weight management issues, lactose intolerance, osteoarthritis, rheumatoid arthritis, or trying to avoid cardiovascular disease. This review provides information for health professionals to enable them to help their patients make informed decisions about consuming dairy products as part of a balanced diet. There may be a weak association between dairy consumption and a possible small weight reduction, with decreases in fat mass and waist circumference and increases in lean body mass. Lactose intolerant individuals may not need to completely eliminate dairy products from their diet, as both yogurt and hard cheese are well tolerated. Among people with arthritis, there is no evidence for a benefit to avoid dairy consumption. Dairy products do not increase the risk of cardiovascular disease, particularly if low fat. Intake of up to three servings of dairy products per day appears to be safe and may confer a favourable benefit with regard to bone health. [less ▲]

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See detailFuel cell electrodes from organometallic platinum precursors: an easy atmospheric plasma approach
Merche, Delphine; Dufour., Thierry; Baneton, Joffrey et al

in Plasma Processes and Polymers (2016), 13

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See detailScientific Problems Addressed by the Spektr-UV Space Project (World Space Observatory—Ultraviolet)
Boyarchuk, A.A.; others; Gérard, Jean-Claude ULg et al

in Astronomy Reports (2016), 60(1), 1-42

The article presents a review of scientific problems and methods of ultraviolet astronomy, focusing on perspective scientific problems (directions) whose solution requires UV space observatories. These ... [more ▼]

The article presents a review of scientific problems and methods of ultraviolet astronomy, focusing on perspective scientific problems (directions) whose solution requires UV space observatories. These include reionization and the history of star formation in the Universe, searches for dark baryonic matter, physical and chemical processes in the interstellar medium and protoplanetary disks, the physics of accretion and outflows in astrophysical objects, from Active Galactic Nuclei to close binary stars, stellar activity (for both low-mass and high-mass stars), and processes occurring in the atmospheres of both planets in the solar system and exoplanets. Technological progress in UV astronomy achieved in recent years is also considered. The well advanced, international, Russian-led Spektr-UV (World Space Observatory—Ultraviolet) project is described in more detail. This project is directed at creating a major space observatory operational in the ultraviolet (115–310 nm). This observatory will provide an effective, and possibly the only, powerful means of observing in this spectral range over the next ten years, and will be an powerful tool for resolving many topical scientific problems. [less ▲]

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See detailStructured carbons as supports for hydrogenation hybrid catalysts prepared by the immobilization of a Rh diamine complex
Gheorghiu, Cristina; Garcia-Bordeje, Enrique; Job, Nathalie ULg et al

in Chemical Engineering Journal (2016), 291

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See detailComparative virucidal efficacy of seven disinfectants against murine norovirus and feline calicivirus, surrogates of human norovirus
Zonta, William ULg; Mauroy, Axel ULg; Farnir, Frédéric ULg et al

in Food and Environmental Virology (2016)

Human noroviruses (HuNoV) are the leading cause of acute nonbacterial gastroenteritis in humans and can be transmitted either by person-to-person contact or by consumption of contaminated food. Knowledge ... [more ▼]

Human noroviruses (HuNoV) are the leading cause of acute nonbacterial gastroenteritis in humans and can be transmitted either by person-to-person contact or by consumption of contaminated food. Knowledge of an efficient disinfection for both hands and food contact surfaces is helpful for the food sector and provides precious information for public health. The aim of this study was to evaluate the effect of seven disinfectants belonging to different groups of biocides (alcohol, halogen, oxidizing agents, quaternary ammonium compounds, aldehyde and biguanide) on infectious viral titre and on genomic copy number. Due to the absence of a cell culture system for HuNoV, two HuNoV surrogates such as murine norovirus (MNV) and feline calicivirus (FCV), were used and the tests were performed in suspension, on gloves and on stainless steel discs. When, as criteria of efficacy, a log reduction > 3 of the infectious viral titre on both surrogates and in the three tests is used, the most efficacious disinfectants in this study appear to be biocidal products B, C and D, representing the halogens, the oxidizing agents group and a mix of QAC, alcohol and aldehyde, respectively. In addition, these three disinfectants also elicited a significant effect on genomic copy number for both surrogate viruses and in all three tests. The results of this study demonstrate that a halogen compound, oxidizing agents and a mix of QAC, alcohol and aldehyde are advisable for HuNoV disinfection of either potentially contaminated surfaces or materials in contact with foodstuffs. [less ▲]

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See detailAssessment of partial coalescence in whippable oil-in-water food emulsions
Petrut, Raul Flaviu ULg; Danthine, Sabine ULg; Blecker, Christophe ULg

in Advances in Colloid and Interface Science (2016), (229), 25-33

Partial coalescence influences to a great extent the properties of final food products such as ice cream and whipped toppings. In return, the partial coalescence occurrence and development are conditioned ... [more ▼]

Partial coalescence influences to a great extent the properties of final food products such as ice cream and whipped toppings. In return, the partial coalescence occurrence and development are conditioned, in such systems, by the emulsion's intrinsic properties (e.g. solid fat content, fat crystal shape and size), formulation (e.g. protein content, surfactants presence) and extrinsic factors (e.g. cooling rate, shearing). A set of methods is available for partial coalescence investigation and quantification. These methods are critically reviewed in this paper, balancing the weaknesses of themethods in terms of structure alteration (for turbidity, dye dilution, etc.) and assumptions made for mathematical models (for particle size determination) with their advantages (good repeatability, high sensitivity, etc.).With the methods proposed in literature, the partial coalescence investigations can be conducted quantitatively and/or qualitatively. Good correlation were observed between some of the quantitative methods such as dye dilution, calorimetry, fat particle size;while a poor correlation was found in the case of solvent extraction method with other quantitativemethods. The most suitableway for partial coalescence quantification was implied to be the fat particle size method, which would give results with a high degree of confidence if used in combination with a microscopic technique for the confirmation of partial coalescence as the main destabilization mechanism. [less ▲]

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