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See detail« La antropología de la infancia y de los niños: Historia de un campo, cuestiones metodológicas y perspectivas »
Razy, Elodie ULg

in Alvarado, Neyra; Pérez, Salvador (Eds.) Por una Antropología de la Infancia (2015)

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See detailAfrican Migrations in Childhood: Historical Roots, Contemporary Perspectives
Rodet, Marie; Razy, Elodie ULg

Book published by James Currey (2015)

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See detailComparaison de deux programmes d'étirements des ischio-jambiers en terme de maintien des gains en mobilité au suivi à deux mois
Demoulin, Christophe ULg; Wolfs, Sébastien ULg; Chevalier, Madeline et al

in Kinesitherapie Revue (2015), 15(158), 57-58

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See detailAmorale, immoral, froide ou cynique? La violence dans 'Cartouche', de Nellie Campobello
Vanden Berghe, Kristine ULg

in Dumortier, Jean-Louis; Granata, Veronica; Raxhon, Philippe (Eds.) et al Devoir de mémoire et pouvoir des fictions (2015)

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See detailClimate Change and Tritrophic Interactions: Will Modifications to Greenhouse Gas Emissions Increase the Vulnerability of Herbivorous Insects to Natural Enemies?
Boullis, Antoine ULg; Francis, Frédéric ULg; Verheggen, François ULg

in Environmental Entomology (2015)

Insects are highly dependent on odor cues released into the environment to locate conspecifics or food sources. This mechanism is particularly important for insect predators that rely on kairomones ... [more ▼]

Insects are highly dependent on odor cues released into the environment to locate conspecifics or food sources. This mechanism is particularly important for insect predators that rely on kairomones released by their prey to detect them. In the context of climate change and, more specifically, modifications in the gas composition of the atmosphere, chemical communication-mediating interactions between phytophagous insect pests, their host plants, and their natural enemies is likely to be impacted. Several reports have indicated that modifications to plants caused by elevated carbon dioxide and ozone concentrations might indirectly affect insect herbivores, with community-level modifications to this group potentially having an indirect influence on higher trophic levels. The vulnerability of agricultural insect pests toward their natural enemies under elevated greenhouse gases concentrations has been frequently reported, but conflicting results have been obtained. This literature review shows that the higher levels of carbon dioxide, as predicted for the coming century, do not enhance the abundance or efficiency of natural enemies to locate hosts or prey in most published studies. Increased ozone levels lead to modifications in herbivore-induced volatile organic compounds (VOCs) released by damaged plants, which may impact the attractiveness of these herbivores to the third trophic level. Furthermore, other oxidative gases (such as SO2 and NO2) tend to reduce the abundance of natural enemies. The impact of changes in atmospheric gas emissions on plant–insect and insect–insect chemical communication has been under-documented, despite the significance of these mechanisms in tritrophic interactions. We conclude by suggesting some further prospects on this topic of research yet to be investigated. [less ▲]

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See detailEarly seed plants from Western Gondwana: Paleobiogeographical and ecological implications based on Tournaisian (Lower Carboniferous) records from Argentina
Prestianni, C.; Rustan, J.J.; Balseiro, D. et al

in Palaeogeography, Palaeoclimatology, Palaeoecology (2015), 417

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See detailLes récits pour la jeunesse: des choix d'écriture qui en font de nouveaux "lieux de mémoire"
Delbrassine, Daniel ULg

in Dumortier, Jean-Louis; Granata, Veronica; Raxhon, Philippe (Eds.) et al Devoir de mémoire et pouvoir des fictions (2015)

Analyse des choix narratifs en usage dans la littérature pour la jeunesse sur les deux guerres mondiales. Démonstration de sa fonction mémorielle à travers ces choix.

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See detailThorough characterization of a Self-Emulsifying Drug Delivery System with Raman hyperspectral imaging: A case study.
Sacre, Pierre-Yves ULg; Netchacovitch, Lauranne ULg; De Bleye, Charlotte ULg et al

in International Journal of Pharmaceutics (2015), 484

Newly developed drugs often have poor bioavailability due to their poor water solubility (BCS class 2 drugs). It is therefore necessary to develop new strategies to enhance their solubility and their ... [more ▼]

Newly developed drugs often have poor bioavailability due to their poor water solubility (BCS class 2 drugs). It is therefore necessary to develop new strategies to enhance their solubility and their activity, among which, Self-Emulsifying Drug Delivery System (SEDDS). The efficacy of the drugs contained in these preparations is mainly affected by the solid state and the particle size of the active pharmaceutical ingredient (API). However, it is quite complex, long and expensive to characterize these parameters with classical techniques such as X-Ray powder diffraction, differential scanning calorimetry or hot stage microscopy. The present article presents, through a case study, the advantages of the Raman hyperspectral imaging in the characterization of such formulations. Indeed, Raman chemical imaging may fully characterize SEDDS with single equipment and operator in a non-destructive way allowing the follow-up of the formulation during stability studies. Raman imaging is therefore a tool of choice in the PAT framework since it increases the knowledge of the formulation and the process. A quantitative multivariate method using Raman hyperspectral imaging to assay the API in the lipid based formulation has been developed and fully validated following the “total error” approach. [less ▲]

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See detailAvoiding 2-binomial squares and cubes
Rao, Michaël; Rigo, Michel ULg; Salimov, Pavel

in Theoretical Computer Science (2015), 572

Two finite words $u,v$ are $2$-binomially equivalent if, for all words $x$ of length at most $2$, the number of occurrences of $x$ as a (scattered) subword of $u$ is equal to the number of occurrences of ... [more ▼]

Two finite words $u,v$ are $2$-binomially equivalent if, for all words $x$ of length at most $2$, the number of occurrences of $x$ as a (scattered) subword of $u$ is equal to the number of occurrences of $x$ in $v$. This notion is a refinement of the usual abelian equivalence. A $2$-binomial square is a word $uv$ where $u$ and $v$ are $2$-binomially equivalent. In this paper, considering pure morphic words, we prove that $2$-binomial squares (resp. cubes) are avoidable over a $3$-letter (resp. $2$-letter) alphabet. The sizes of the alphabets are optimal. [less ▲]

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See detailQu'est-ce qu'un thème?
Badir, Sémir ULg

in Signata. Annales des Sémiotiques = Annals of Semiotics (2015), 5 (2014)

We approach the notion of theme as a problematic one. Particularly, one can observe that the functions of a theme, as they are assigned by the specialists, especially in linguistics and literary studies ... [more ▼]

We approach the notion of theme as a problematic one. Particularly, one can observe that the functions of a theme, as they are assigned by the specialists, especially in linguistics and literary studies, are multiple and mutually incompatible. It is from this variety reluctant to the disciplinarized modes of knowledge that we have in mind to establish the semiological nature of the theme. Its development is a knowledge that does not bend nor to analysis neither to synthesis. In this research, the lectures made by Roland Barthes at the Collège de France serve as a guide and as an example. [less ▲]

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See detail(In)sécurités linguistiques francophones en Belgique : du taux d’insécurité aux facteurs d’(in)sécurité
Dassargues, Alix ULg

in L'insécurité en question : défis, enjeux et perspectives (2015)

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See detailShort communication: Novel method to predict body weight of primiparous dairy cows throughout the lactation
Vanrobays, Marie-Laure ULg; Vandenplas, Jérémie ULg; Hammami, Hedi ULg et al

in Journal of Dairy Science (2015), 98

Body weight (BW) of dairy cows can be estimated using linear conformation traits (calculated BW; CBW), which are generally recorded only once during a lactation. However, predicted BW (PBW) throughout the ... [more ▼]

Body weight (BW) of dairy cows can be estimated using linear conformation traits (calculated BW; CBW), which are generally recorded only once during a lactation. However, predicted BW (PBW) throughout the lactation would be useful, e.g., at milk-recording dates allowing feed-intake prediction for advisory purposes. Therefore, a 2-step approach was developed to obtain PBW for each milk-recording date. In the first step, a random-regression test-day model was used with CBW as observations to predict PBW. The second step consisted in changing means and (co)variances of prior distributions for the additive genetic random effects of the test-day model by using priors derived from results of the first step to predict again PBW. A total of 25,061 CBW from 24,919 primiparous Holstein cows were computed using equations from literature. Using CBW as observations, PBW was then predicted over the whole lactation for 232,436 dates corresponding to 207,375 milk-recording dates and 25,061 classification dates. Results showed that using both steps (the 2-step approach) provided more accurate predictions than using only the first step (the one-step approach). Based on the results of this preliminary study, BW of dairy cows could be predicted throughout the lactation using this procedure. These predictions could be useful in milk-recording systems to compute traits of interest (e.g., feed-intake prediction). The developed novel method is also flexible because actual direct measurements of BW can also be used together with CBW, the prediction model being able to accommodate different levels of accuracies of used BW phenotypes. [less ▲]

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See detailExpulsion of a uterine myoma in a patient treated with ulipristal acetate
CHANTRAINE, Frédéric ULg; POISMANS, Gaëlle ULg; Nwachuku, Julia et al

in Clinical Case Reports (2015)

Description of a spontaneous expulsion of a submucosal myoma in a patient treated with ulipristal acetate.

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See detailSedimentology and magnetic susceptibility of recent sediments from New Caledonia
Jadot, Hélène ULg; Boulvain, Frédéric ULg

in Special Publication - Geological Society of London (2015), 414

The interpretation of the primary origin of the minerals carrying the magnetic susceptibility (MS) signal from ancient rocks suffers notably from the scarcity of studies on Recent sediments. To bring new ... [more ▼]

The interpretation of the primary origin of the minerals carrying the magnetic susceptibility (MS) signal from ancient rocks suffers notably from the scarcity of studies on Recent sediments. To bring new data, a study of tropical coastal sediments of New Caledonia was undertaken. This island is surrounded by a nearly uninterrupted reef barrier, isolating a wide lagoon from the open ocean. The erosion of extremely varied rocks (from mantle rocks to laterites) produces different types of detrital sediments, which are mixed with the indigenous precipitated carbonates. This generates different types of coastal sediments, detrital- or carbonate-dominated or mixed. More than 300 samples were analysed for grain size, nature of sediment, MS and geochemistry (major elements). The first results show that: (a) carbonate sands and carbonate silts are characterized by lower MS than detrital sediments; (b) the MS signal of mixed sediments is mostly influenced by the proportion of detrital sediments; (c) MS is directly correlated with Mn and Fe content; (d) beachrocks are characterized by lower MS than equivalent loose sediment; (e) the MS signal of carbonate sediments is locally positively correlated with granulometry; (f) there is no MS change between surface and 20 cm deep samples; and (g) when the subsurface sediment is reducing, the MS is higher than that from surface sediment. [less ▲]

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See detailOleuropein or rutin consumption decreases the spontaneous development of osteoarthritis in the Hartley guinea pig.
Horcajada, M.-N.; Sanchez, Christelle ULg; Membrez Scalfo et al

in Osteoarthritis and cartilage / OARS, Osteoarthritis Research Society (2015), 23(1), 94-102

OBJECTIVE: To assess the potential protective effects of three polyphenols oleuropein, rutin and curcumin, on joint ageing and osteoarthritis (OA) development. DESIGN: Sixty 4-week-old Dunkin-Hartley ... [more ▼]

OBJECTIVE: To assess the potential protective effects of three polyphenols oleuropein, rutin and curcumin, on joint ageing and osteoarthritis (OA) development. DESIGN: Sixty 4-week-old Dunkin-Hartley guinea pigs were randomized into four groups and received daily during 31 weeks either standard guinea pig diet (control group) or a standard guinea pig diet enriched with oleuropein (0.025%), rutin (0.5%) or rutin/curcumin (0.5%/0.25%) association. Biomarkers of OA (Coll2-1, Coll2-1NO2, Fib3-1, Fib3-2, ARGS), as well as inflammation (PGE2) were quantified in the serum. Histological assessments of knee cartilage and synovial membrane were performed at week 4 (five young reference guinea pigs) and week 35. RESULTS: At week 35, guinea pigs in the control group spontaneously developed significant cartilage lesions with mild synovial inflammation. The histological scores of cartilage lesions and synovitis were well correlated with the increased level of serum biomarkers. Histologically, all treatments significantly reduced the cartilage degradation score (P < 0.01), but only oleuropein significantly decreased the synovial histological score (P < 0.05) and serum PGE2 levels (P < 0.01) compared to the control group. Coll2-1 was decreased by rutin and the combination of rutin/curcumin, Fib3-1 and Fib3-2 were only decreased by the rutin/curcumin mixture, while Coll2-1NO2 was significantly decreased by all treatments (P < 0.05). CONCLUSION: Oleuropein and rutin +/- curcumin significantly slowed down the progression of spontaneous OA lesions in guinea pigs. While no additive effect was seen in the curcumin + rutin group, the differential effects of oleuropein and rutin on inflammatory and cartilage catabolic markers suggest an interesting combination for future studies in OA protection. [less ▲]

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See detailClinical inertia in general practice, a matter of debate: a qualitative study with 114 general practitioners in Belgium.
Aujoulat, Isabelle; Jacquemin, Patricia; Hermans, Michel et al

in BMC family practice (2015), 16(1), 13

BackgroundPrescribing that is not concordant with guidelines is increasingly referred to as clinical inertia (CI). However, CI may be only apparent, and the absence of decision may actually reflect ... [more ▼]

BackgroundPrescribing that is not concordant with guidelines is increasingly referred to as clinical inertia (CI). However, CI may be only apparent, and the absence of decision may actually reflect appropriate inaction as a result of good clinical reasoning. Our study aimed to: (i) elucidate GPs inverted question mark beliefs regarding CI and the risk of CI in their own practice, (ii) identify modifiable provider-related factors associated with CI.MethodsWe conducted 8 group interviews with 114 general practitioners (GP) in Belgium, and used an integrated approach of thematic analysis.ResultsOur results call for a redefinition of CI, in order to take into account the GPs inverted question mark extended health-promoting role, and acknowledge that inaction or delayed action follows a process of clinical reasoning that takes into account the patients inverted question mark preferences, and that is appropriate most of the time. However, the participants in our study did acknowledge that the risk of CI exists in practice. The main factor of such a risk is when GPs feel overwhelmed and disempowered, due to characteristics of either the patients or the health care system, including contradictions between guidelines and reimbursement policies.ConclusionsAlthough situations of clinical inertia exist in practice and need to be prevented or corrected, the term clinical inertia could potentially increase the already existing gap between general practice and specialised care, whereas sustained efforts toward more collaborative work and integrated care are called for. [less ▲]

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See detailEducation et formation en médecine gériatrique en Europe : challenge du futur?
ROLLER, REGINA ELISABETH; PETERMANS, Jean ULg

in Gériatrie et Psychologie Neuropsychiatrie du Vieillissement (2015)

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See detailMedical education and training in geriatrics in the 21st centrury. Where do we come from - where do we go ?
Roller, Regina Elisabeth; PETERMANS, Jean ULg

in European Geriatric Medicine (2015)

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See detailThe aerodynamic cost of head morphology in bats: maybe not as bad as it seems
Vanderelst, Dieter; Peremans, Herbert; Abdul Razak, Norizham et al

in PLoS ONE (2015), 10(3), 0118545

At first sight, echolocating bats face a difficult trade-off. As flying animals, they would benefit from a streamlined geometric shape to reduce aerodynamic drag and increase flight efficiency. However ... [more ▼]

At first sight, echolocating bats face a difficult trade-off. As flying animals, they would benefit from a streamlined geometric shape to reduce aerodynamic drag and increase flight efficiency. However, as echolocating animals, their pinnae generate the acoustic cues necessary for navigation and foraging. Moreover, species emitting sound through their nostrils often feature elaborate noseleaves that help in focussing the emitted echolocation pulses. Both pinnae and noseleaves reduce the streamlined character of a bat’s morphology. It is generally assumed that by compromising the streamlined charactered of the geometry, the head morphology generates substantial drag, thereby reducing flight efficiency. In contrast, it has also been suggested that the pinnae of bats generate lift forces counteracting the detrimental effect of the increased drag. However, very little data exist on the aerodynamic properties of bat pinnae and noseleaves. In this work, the aerodynamic forces generated by the heads of seven species of bats, including noseleaved bats, are measured by testing detailed 3D models in a wind tunnel. Models of Myotis daubentonii, Macrophyllum macrophyllum, Micronycteris microtis, Eptesicus fuscus, Rhinolophus formosae, Rhinolophus rouxi and Phyllostomus discolor are tested. The results confirm that non-streamlined facial morphologies yield considerable drag forces but also generate substantial lift. The net effect is a slight increase in the lift-to-drag ratio. Therefore, there is no evidence of high aerodynamic costs associated with the morphology of bat heads [less ▲]

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