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See detailPowerpoint "Les principaux groupes médiatiques belges privés" (9 pages)
Geuens, Geoffrey ULg

Learning material (2014)

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See detailThéories et analyse de l'information - Portefeuille de lectures (104 p)
Geuens, Geoffrey ULg

Learning material (2014)

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See detail¿Pudo el zapatista hablar?
Ceballos Viro, Alvaro ULg; Diestro Zorrilla, Alberto

in Vanden Berghe, Kristine (Ed.) La Revolución mexicana. Miradas desde Europa (2014)

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See detailCombined effects of climate, resource availability, and plant traits on biomass produced in a Mediterranean rangeland
Chollet, Simon; Rambal, Serge; Fayolle, Adeline ULg et al

in Ecology (2014), 95(3), 737-748

Biomass production in grasslands, a key component of food provision for domestic herbivores, is known to depend on climate, resource availability, and on the functional characteristics of communities ... [more ▼]

Biomass production in grasslands, a key component of food provision for domestic herbivores, is known to depend on climate, resource availability, and on the functional characteristics of communities. However, the combined effects of these different factors remain largely unknown. The aim of the present study was to unravel the causes of variations in the standing biomass of plant communities using a long-term experiment conducted in a Mediterranean rangeland of Southern France. Two management regimes, sheep grazing and grazing associated with mineral fertilization, were applied to different areas of the study site over the past 25 years. Abiotic (temperature, available water, nutrients) and biotic (components of the functional structure communities) factors were considered to explain interannual and spatial variations in standing biomass in these rangelands. Standing biomass was highly predictable, with the best model explaining ;80% of variations in the amount of biomass produced, but the variation explained by abiotic and biotic factors was dependent on the season and on the management regime. Abiotic factors were found to have comparable effects in both management regimes: The amount of biomass produced in the spring was limited by cold temperatures, while it was limited by water availability and high temperatures in the summer. In the fertilized community, the progressive change in the functional structure of the communities had significant effects on the amount of biomass produced: the dominance of few productive species which were functionally close led to higher peak standing biomass in spring. [less ▲]

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See detailExperimental Study of the Human Ability to Deliberately Excite a Flexible Floor
Schwartz, Cédric ULg; Berger, Alexis; Bruls, Olivier ULg et al

in Zingoni, Alphose (Ed.) Proceedings of the 5th International Conference on Structural Engineering, Mechanics and Computation (2014)

Human-structure interactions are not completely understood yet. This paper presents an experimental study focusing on the interaction between a human and a flexible support, with a major aim to better ... [more ▼]

Human-structure interactions are not completely understood yet. This paper presents an experimental study focusing on the interaction between a human and a flexible support, with a major aim to better understand how the behavior of a human subject, bouncing on a flexible structure, adapts to the support motion. Exploratory experiments are undertaken with a 7m-span timber footbridge tested in the Human Motion Analysis Laboratory of the University of Liege. The movements of the coupled system composed of the subject and the footbridge are recorded by Motion Capture technology; the subject\textquoteright{}s 3-D body motion is defined by three important angles: ankle, knee and hip. The interaction between the subject and the footbridge is also quantified by means of force platform measurements. The experiments indicate an influence of the support amplitude and natural frequency on the phase shift between the oscillatory floor motion and the three angles characterizing the motion. [less ▲]

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See detailVitamin D status and bone mineral density changes during alendronate treatment in postmenopausal osteoporosis.
Roux, Christian; Binkley, Neil; Boonen, Steven et al

in Calcified tissue international (2014), 94(2), 153-7

Vitamin D supplementation is recommended for women with osteoporosis. In the FOCUS-D trial comparing the combination tablet alendronate plus vitamin D3 5,600 IU (ALN/D) with standard care (SC) prescribed ... [more ▼]

Vitamin D supplementation is recommended for women with osteoporosis. In the FOCUS-D trial comparing the combination tablet alendronate plus vitamin D3 5,600 IU (ALN/D) with standard care (SC) prescribed by patients' personal physicians, ALN/D was more effective in improving serum 25(OH)D and bone turnover markers by 6 months and increasing spine and hip bone mineral density (BMD) after 1 year than SC. This post hoc analysis examined the relationship between BMD gain and 25(OH)D in women in SC receiving alendronate (SC/ALN, n = 134, 52% of the SC group) and in the ALN/D group (n = 257). At baseline, participants were of mean age 73 years and 72% were Caucasian, with a mean 25(OH)D of 14.9 ng/mL. In the SC/ALN group, most received vitamin D, although intake of vitamin D varied extensively (51% received <400 mug/day). In this group, end-of-study 25(OH)D correlated positively with mean percent increases from baseline in lumbar spine and femoral neck BMD [Pearson correlation coefficients (95% CI) = 0.23 (0.02-0.41) and 0.24 (0.03-0.41), respectively]. Baseline 25(OH)D correlated with increases in only lumbar spine BMD [Pearson correlation coefficient (95% CI) = 0.22 (0.01-0.40)]. No correlations between mean BMD change and 25(OH)D were seen with ALN/D. In conclusion, in postmenopausal women with osteoporosis and low 25(OH)D receiving alendronate and a wide range of vitamin D doses, the increase in lumbar spine and femoral neck BMD was positively correlated with serum 25(OH)D achieved by the end of the study and, to some extent, with 25(OH)D concentrations at baseline. The degree of success of alendronate therapy for osteoporosis may depend on the vitamin D status of patients. [less ▲]

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See detailThe self-report Version of the LSAS-CA: Psychometric Properties of the French Version in a non-clinical adolescent sample
Schmits, Emilie ULg; Heeren, Alexandre; Quertemont, Etienne ULg

in Psychologica Belgica (2014), 54(2),

The Liebowitz Social Anxiety Scale (LSAS) is one of the most popular measures of social anxiety in adults. The LSAS has been adapted for clinical assessment of children and adolescents (LSAS-CA). The ... [more ▼]

The Liebowitz Social Anxiety Scale (LSAS) is one of the most popular measures of social anxiety in adults. The LSAS has been adapted for clinical assessment of children and adolescents (LSAS-CA). The psychometric properties of the self-report version of the LSAS-CA (LSAS-CA-SR) have been investigated in a Spanish population. However, no study to date has adapted and validated this scale in French. The purpose of this study was to develop a French version of the LSAS-CA-SR and to assess its score reliability and structural validity in a French-speaking community sample. The sample was made up of 1,343 teenagers from secondary schools, aged between 14 and 18 years. Confirmatory factor analyses established the structural validity of the French version of the LSAS-CA-SR and good psychometric properties, including reliable internal consistency, were observed. [less ▲]

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See detailCannabis et anxiété sociale chez les adolescents : Effets recherchés et ressentis
Schmits, Emilie ULg

Book published by Editions Universitaires Européennes (2014)

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See detailThe mitochondrial respiratory chain of the secondary green alga Euglena gracilis shares many additional subunits with parasitic Trypanosomatidae.
Perez, Emilie ULg; Lapaille, Marie; Degand, Herve et al

in Mitochondrion (2014)

The mitochondrion is an essential organelle for the production of cellular ATP in most eukaryotic cells. It is extensively studied, including in parasitic organisms such as trypanosomes, as a potential ... [more ▼]

The mitochondrion is an essential organelle for the production of cellular ATP in most eukaryotic cells. It is extensively studied, including in parasitic organisms such as trypanosomes, as a potential therapeutic target. Recently, numerous additional subunits of the respiratory-chain complexes have been described in Trypanosoma brucei and Trypanosoma cruzi. Since these subunits had apparently no counterparts in other organisms, they were interpreted as potentially associated with the parasitic trypanosome lifestyle. Here we used two complementary approaches to characterise the subunit composition of respiratory complexes in Euglena gracilis, a non-parasitic secondary green alga related to trypanosomes. First, we developed a phylogenetic pipeline aimed at mining sequence databases for identifying homologs to known respiratory-complex subunits with high confidence. Second, we used MS/MS proteomics after two-dimensional separation of the respiratory complexes by Blue Native- and SDS-PAGE to both confirm in silico predictions and to identify further additional subunits. Altogether, we identified 41 subunits that are restricted to E. gracilis, T. brucei and T. cruzi, along with 48 classical subunits described in other eukaryotes (i.e. plants, mammals and fungi). This moreover demonstrates that at least half of the subunits recently reported in T. brucei and T. cruzi are actually not specific to Trypanosomatidae, but extend at least to other Euglenozoa, and that their origin and function are thus not specifically associated with the parasitic lifestyle. Furthermore, preliminary biochemical analyses suggest that some of these additional subunits underlie the peculiarities of the respiratory chain observed in Euglenozoa. [less ▲]

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See detailReaching the 1% accuracy level on stellar mass and radius determinations from asteroseismology
Van Grootel, Valérie ULg; Charpinet, Stephane; Fontaine, Gilles et al

in Proceedings of the International Astronomical Union (2014), 301

Asteroseismic modeling of subdwarf B (sdB) stars provides measurements of their fundamental parameters with a very good precision; in particular, the masses and radii deter- mined from asteroseismology ... [more ▼]

Asteroseismic modeling of subdwarf B (sdB) stars provides measurements of their fundamental parameters with a very good precision; in particular, the masses and radii deter- mined from asteroseismology are found to typically reach a precision of 1% containing various uncertainties associated with their inner structure and the underlying microphysics (composition and transition zones profiles, nuclear reaction rates, etc.). Therefore, the question of the accuracy of the stellar parameters derived by asteroseismology is legitimate. We present here the seismic modeling of the pulsating sdB star in the eclipsing binary PG 1336-018, for which the mass and the radius are independently and precisely known from the modeling of the reflection/irradiation effect and the eclipses observed in the light curve. This allows us to quantitatively evaluate the reliability of the seismic method and test the impact of uncertainties in our stellar models on the derived parameters. We conclude that the sdB star parameters inferred from asteroseismology are precise, accurate, and robust against model uncertainties. [less ▲]

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See detailSartre, les passions de la liberté. Phénoménologie, politique, savoirs critiques
Cormann, Grégory ULg

Book published by Peter Lang (2014)

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See detailBone forming agents for the management of osteoporosis
Reginster, Jean-Yves ULg; Neuprez, A.; Beaudart, Charlotte ULg et al

in Panminerva medica (2014)

Osteoporotic fractures are a major cause of morbidity in the population. Anti-resorptive agents have been, for more than 15 years, the mainstay of osteoporosis treatment worldwide. However, these ... [more ▼]

Osteoporotic fractures are a major cause of morbidity in the population. Anti-resorptive agents have been, for more than 15 years, the mainstay of osteoporosis treatment worldwide. However, these medications provide only limited fracture reduction and may be linked to skeletal and non-skeletal long-term safety concerns. Therefore, some patients are considered candidates for bone-forming agents because they remain severely osteoporotic or because they failed antiresorptive therapy. Over the last decade, a particular interest was shown in the developmentofmedicationsabletoincreaseosteoblastsnumber,lifespan or activity, hence stimulating bone formation Peptides from the parathyroid hormone family and strontium ranelate were shown to significantly reduce fracture rates but strontium ranelate is no longer an option for treating osteoporosis because of its safety profile. New therapeutic options, including monoclonal antibodies against sclerostin seem to be promising but their role in the armamentarium of osteoporosis will depend on the results of the current phase 3 studies, assessing antifracture efficacy and long-term safety. [less ▲]

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See detailPrevalence of sarcopenia according to different diagnostic tools
Beaudart, Charlotte ULg; Buckinx, Fanny ULg; Slomian, Justine ULg et al

in Journal of Frailty & Aging (2014), 3(1), 43

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See detailEvolution over two years of functional and motor abilities among nursing home residents
Buckinx, Fanny ULg; Beaudart, Charlotte ULg; Slomian, Justine ULg et al

in Journal of Frailty & Aging (2014), 3(1), 45

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See detailaktives Affix
Münzberg, Franziska ULg

in Schierholz, Stefan J.; Dürscheid, Christa (Eds.) Grammatik - Formenlehre (2014)

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See detailSaisir l’évaluation de l’université en actes : interprétations et appropriations des parties prenantes.
Charlier, Nathan ULg; Vangeebergen, Thomas ULg

in Fallon, Catherine; Leclercq, Bruno (Eds.) Leurres de la qualité dans l’enseignement supérieur. Variations internationales sur un thème ambigu (2014)

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See detailSustainable intensification in Benin: myth or realiy? Lessons from organic cotton and cotton made in Africa systems of production.
Assogba, Sonagnon Claude-Gervais ULg; Tossou, Cocou Rigobert; Lebailly, Philippe ULg

in International Journal of Agriculture Innovations and Research (2014), 2(5), 694-704

In agriculture, the concept of sustainable development emergence and its omnipresence in political discourses suggests that farming systems move toward systems considered as more environment-friendly and ... [more ▼]

In agriculture, the concept of sustainable development emergence and its omnipresence in political discourses suggests that farming systems move toward systems considered as more environment-friendly and human health-friendly. In Benin, cotton is one of the most sectors concerned by this transformation. Indeed, in spite of the importance of cotton in the economy of Benin, its sustainable production is nowadays threatened by conventional production approach. Various alternatives of production are developed and considered as more environment-friendly than the conventional production approach. This article analyses the sustainability of organic and cotton made in Africa (CmiA) production systems from the sustainable agricultural intensification theoretical perspective. Structured and non-structured interviews with individuals and focus groups were used to collect data from 90 organic cotton farmers of the municipality of Kandi, and 100 CmiA farmers of the municipality of Pehunco, one of the largest areas of cotton production in the North of Benin. Data were analyzed with methods of normative and relativist comparison, descriptive statistics and analysis of variance. Kolmogorov-Smirnov (K-S) test was used to verify the normality conditions and in some cases, logarithmic transformation was done to test the variance homogeneity. The comparison of means was done with the test of Least Significant Difference. It appears from the results that in the current condition of implementation, the alternatives system to conventional cotton production approach are not intensively sustainable. Soils fertility and pests’ management face enormous constraints and do not allow improvement of yields, economic performances, and environment protection. So, the sustainability of the alternative systems of cotton production is not guaranteed and can hardly become a reality if additional relevant conditions are not created [less ▲]

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