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See detailPregnancy-Associated Glycoprotein F-58 kDa [Fragment] from Bubalus bubalis placenta - Access number P86377
Barbato, O.; Melo de Sousa, Noelita ULg; Barile, V. L. et al

E-print/Working paper (2009)

N-terminal microsequence obtained after purification and characterization of placental proteins in Bubalus bubalis. Proteins were submitted to SwissProt databank.

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See detailKératoses actiniques sous la loupe.
PIERARD, Gérald ULg; BASSET-SEGUIN, N.; HENGGE, U. et al

Book published by Publ. Artoos (2009)

Actinic keratoses are common lesions caused by the cumulative action of the sun’s rays on the skin of predisposed individuals. They generally develop in seniors, but they may be earlier in those who have ... [more ▼]

Actinic keratoses are common lesions caused by the cumulative action of the sun’s rays on the skin of predisposed individuals. They generally develop in seniors, but they may be earlier in those who have an occupational activity outside or who spend a lot of spare time under the sun. The depletion of the ozone layer might also be involved. [less ▲]

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See detailEDLC electrodes from cellulose-based carbon aerogels : influence of the carbon's surface chemistry
Hildebrand, Claudia; Grzyb, Bartosz; Berthon-Fabry, Sandrine et al

in Proceedings of the International Carbon Conference 2009 (2009)

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See detailExperimental investigation of flow and deposit patterns in rectangular shallow reservoirs: preliminary analysis
Dufresne, Matthieu ULg; Dewals, Benjamin ULg; Erpicum, Sébastien ULg et al

in Proceedings International Workshop on Environmental Hydraulics: Theoretical, Experimental and Computational Solutions (2009)

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See detailMagnetic susceptibility evolution and sedimentary environments on carbonate platform sediments and atolls, comparison of the Frasnian from Belgium and Alberta, Canada
Da Silva, Anne-Christine ULg; Potma, Ken; Weissenberger, John A. W. et al

in Sedimentary Geology (2009), 214

Magnetic susceptibility (MS) measurements on carbonate rocks are considered as a proxy for impurities delivered to the carbonate environments. In the absence of strong climatic or tectonic variations ... [more ▼]

Magnetic susceptibility (MS) measurements on carbonate rocks are considered as a proxy for impurities delivered to the carbonate environments. In the absence of strong climatic or tectonic variations, bulk MS values have been linked to sea level variations, because sea-level fall increases clastic supply and therefore increases magnetic mineral deposition. In this paper we explore the relationship between the average magnitude of bulk MS, with shallowing-up sequences and facies evolution in different Devonian carbonate complexes. Similarities and differences between these parameters have been scrutinized in carbonate attached platform and detached platforms (mounds and/or atolls) from Belgium and Canada. In the carbonate attached platforms from Belgium and Canada, the MS patterns are directly related to depositional environment. Mean MS values increase from the most distal towards the most proximal facies and towards the top of the majority of fourth-order shallowing-up sequences. These trends are in agreement with theoretical background (MS increases with regression). In the Belgian detached platform, the average MS pattern generally shows an opposite behaviour of that observed in the attached carbonate platforms. Average MS decreases towards the most proximal facies and towards the top of a majority of the fourth-order shallowing-up sequences. This behaviour can be explained by the influence of sedimentary rate and water agitation during deposition. A high sedimentary rate will dilute the magnetic minerals in the atoll facies and the highwater agitation during deposition may be expected to have prevented the deposition of the magnetic grains. So, the combination of these two effects will result in the observed low values in the atoll crown and lagoonal facies. In the Canadian detached platform, MS is mainly negative. This means that the limestones are very pure. The technique does not appear to be appropriate in these rocks. The variations of average MS behaviour by platform type can imply difficulties in correlating carbonates from different settings. A comparison of time equivalent mound and platform deposits shows that after an important regressive surface, the MS values are increasing for the platform deposits and decreasing for the mound. So MS evolution can be in complete opposition (caused by highly different sedimentary rates) in different depositional settings. The MS signal preserved in carbonate rocks is probably mainly related to 1) varying clastic supplies; 2) varying carbonate accumulation rates (dilution of the magnetic minerals by high carbonate production) and 3) potentially diagenesis. [less ▲]

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See detailModelling at the biological/biomechanical interface: fracture healing case studies
Geris, Liesbet ULg

in Exploring the biological/biomechanics interface (2009)

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See detailShort-term post-dispersal fate of seeds defecated by two small primate species (Saguinus mystax and Saguinus fuscicollis) in the Amazonian forest of Peru
Culot, Laurence ULg; Huynen, Marie-Claude ULg; Gérard, Paul ULg et al

in Journal of Tropical Ecology (2009), 25

Post-dispersal fate of seeds dispersed by large primates is well studied but little is known about this process in small frugivores like tamarins. This study in the Amazonian forest of Peru aimed at ... [more ▼]

Post-dispersal fate of seeds dispersed by large primates is well studied but little is known about this process in small frugivores like tamarins. This study in the Amazonian forest of Peru aimed at investigating if characteristics related to the defecation patterns of tamarins (Saguinus mystax and Saguinus fuscicollis) affected short-term post-dispersal seed fate, through secondary seed dispersal by dung beetles and removal by seed predators. Data on dung beetle activity were based on direct observations of 49 defecations while seed fate was studied using semi-controlled experiments (N = 458 for secondary dispersal and N = 398 for predation). Tamarins produce small defecations with a low number of seeds. Thirty-five per cent of defecations were visited by an average of 1.5 dung beetles that usually transport the faeces as pellets. Twenty-four per cent of seeds were buried by beetles at a mean depth of 3.5 cm. With increasing quantities of faecal matter, the probability of secondary seed dispersal increased but not the depth of burial. Seed predation pressure was low (17.6%) after 4 d and higher in faeces of S. mystax than in faeces of S. fuscicollis. Despite their small size, tamarins could be considered as high-quality seed dispersers, with a potential role for forest regeneration. [less ▲]

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See detailAn Extra-trees-based Automatic Target Recognition Algorithm
Pisane, Jonathan ULg; Marée, Raphaël ULg; Ries, Philippe ULg et al

in To appear in Proc. International Radar Conference (2009)

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See detailBande dessinée : un média économiquement mutagène
Dejasse, Erwin ULg

in L’artiste et ses intermédiaires (2009)

Les fanzines, les structures alternatives et les "majors". trois manières de "faire" de la bande dessinée dont les réalités économiques sont bien différente. L'article s'attache à éclaircir cette ... [more ▼]

Les fanzines, les structures alternatives et les "majors". trois manières de "faire" de la bande dessinée dont les réalités économiques sont bien différente. L'article s'attache à éclaircir cette constation. [less ▲]

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See detailUne nouvelle macle de la pyrrhotite sur un échantillon de la mine El ,Potosi, Santa Eulalia, Chihuahua, Mexique
Philippo, Simon; Hatert, Frédéric ULg

in Le règne minéral (2009), 90

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See detailProbability Density Estimation by Perturbing and Combining Tree Structured Markov Networks
Ammar, Sourour; Leray, Philippe; Defourny, Boris ULg et al

in Proc. of ECSQARU '09: 10th European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (2009)

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See detailSex differences in the expression of sex steroid receptor mRNA in the quail brain.
Voigt, C.; Ball, G. F.; Balthazart, Jacques ULg

in Journal of Neuroendocrinology (2009)

Abstract In Japanese quail, males will readily exhibit the full sequence of male-typical sexual behaviors but females never show this response even after ovariectomy and treatment with male-typical ... [more ▼]

Abstract In Japanese quail, males will readily exhibit the full sequence of male-typical sexual behaviors but females never show this response even after ovariectomy and treatment with male-typical concentrations of exogenous testosterone. Testosterone aromatization plays a key-limiting role in the activation of this behavior but the higher aromatase activity in the brain of males compared to females is not sufficient to explain the behavioral sex difference. The cellular and molecular bases of this prominent sex difference in the functional consequences of testosterone have not been identified so far. We hypothesized that the differential expression of sex steroid receptors in specific brain areas could mediate this behavioral sex difference and therefore quantified by radioactive in situ hybridization histochemistry the expression of the mRNA coding for the androgen receptor (AR) and the estrogen receptors (ER) of the alpha and beta sub-types. All three receptors were expressed in an anatomically discrete manner in various nuclei of the hypothalamus and limbic system and, at usually lower densities, in a few other brain areas. In both sexes, the intensity of the hybridization signal for all steroid receptors was highest in the medial preoptic nucleus (POM), a major site of testosterone action related to the activation of male sexual behavior. Although no sex difference in the optical density of the AR hybridization signal could be found in POM, the area covered by AR mRNA was significantly larger in males than in females, indicating a higher overall degree of AR expression in this region in males. In contrast, females tended to have significantly higher levels of AR expression than males in the lateral septum. ERalpha was more densely expressed in females than males throughout the medial preoptic and hypothalamic areas (including the POM and the medio-basal hypothalamus [MBH)], an area implicated in the control of female receptivity) and in the mesencephalic nucleus intercollicularis. ERbeta was more densely expressed in the medio-basal hypothalamus of females but a difference in the reverse direction (males>females) was observed in the nucleus taeniae of the amygdala. These data suggest that a differential expression of steroid receptors in specific brain areas could mediate at least certain aspects of the sex differences in behavioral responses to testosterone but they do not appear to be sufficient to explain the complete lack of activation by testosterone of male-typical copulatory behavior in females. [less ▲]

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See detailImpact of bone marker feedback on adherence to once monthly ibandronate for osteoporosis among Asian postmenopausal women
Kung, Annie Wai-Chee; Rachman, A Ichramsjah; Adam, MF John et al

in International Journal of Rheumatic Diseases (2009), 12

Aim: This study assesses the impact of serum carboxy-terminal collagen crosslinks (CTX) bone marker feedback (BMF) on adherence to ibandronate treatment in Asian postmenopausal women with osteoporosis ... [more ▼]

Aim: This study assesses the impact of serum carboxy-terminal collagen crosslinks (CTX) bone marker feedback (BMF) on adherence to ibandronate treatment in Asian postmenopausal women with osteoporosis. Methods: This was a 12-month (6-monthly phased), randomized, prospective, open-label, multi-center study conducted in 596 (of 628 enrolled) postmenopausal women with osteoporosis (£ 85 years old) who were naı¨ve, lapsed, or current bisphosphonate users. Patients were randomized into two arms: serum CTX BMF at 3 months versus no-BMF. Once-monthly 150 mg ibandronate tablet was administered for 12 months and adherence to therapy was assessed at 6 and 12 months. In addition, patient satisfaction and safety of ibandronate treatment were also assessed. Results: Serum CTX BMF at 3 months showed no impact on adherence. The proportions of adherent patients were comparable in the BMF versus no-BMF arms (92.6% vs. 96.0%, P = 0.16); overall, serum CTX levels were similar for adherent and non-adherent patients. However, BMF patients felt more informed about their osteoporosis (P < 0.001) and more satisfied (P < 0.01) than no-BMF patients. Conclusions: The Asian postmenopausal osteoporosis patients in this study had a high adherence rate to once-monthly ibandronate therapy. Use of serum CTX BMF had no further impact on increasing adherence, but increased treatment satisfaction. [less ▲]

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See detailComplex modulation of singing behavior by testosterone in an open-ended learner, the European Starling.
Van Hout, Alain J*-M; Eens, Marcel; Balthazart, Jacques ULg et al

in Hormones & Behavior (2009), 56(5), 564-73

In many temperate zone songbird species males only produce song during the breeding season, when plasma testosterone (T) levels are high. Males of some species sing throughout the year, even when T levels ... [more ▼]

In many temperate zone songbird species males only produce song during the breeding season, when plasma testosterone (T) levels are high. Males of some species sing throughout the year, even when T levels are low, indicating a dissociation between high T levels and song rate. Given that few studies have taken advantage of these species, we compare here song traits expressed under high versus low T concentrations and we study the role of testosterone in adult song learning in the European Starling, an open-ended learner in which repertoire size dramatically increases with age. We performed a detailed comparison of song complexity and song rate between fall and spring in 6-year-old intact male European starlings. In parallel, we investigated whether potential seasonal changes were regulated by the gonadally induced increase in plasma T, by comparing seasonal changes in intact and castrated males of the same age (castrated as juveniles during their first fall) and by subsequently experimentally elevating T in half of the castrated males. While song rate and stereotypy did not differ between intacts and castrates or between fall and spring, both groups increased their average song bout length from fall to spring, but only intact males increased their repertoire size, indicating that effects of seasonal T changes differ between song traits. Intact males overall displayed a larger song repertoire and a longer bout length than the castrates, and implantation with T caused a turnover in repertoire composition in castrates. However, as the castrates had never experienced high T levels and yet displayed a markedly higher repertoire size than that of typical yearling males, this suggests that the progressive increase of song repertoire with age in male starlings is not dependent on gonadal T, although it may be T-enhanced. [less ▲]

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See detailMATISSE Science Cases
Wolf, S.; Lopez, B.; Jaffe, W. et al

in Moorwood, A. (Ed.) Science with the VLT in the ELT Era (2009)

MATISSE is foreseen as a mid-infrared spectro-interferometric instrument combining the beams of up to four UTs/ATs of the Very Large Telescope Interferometer (VLTI). MATISSE will measure closure phase ... [more ▼]

MATISSE is foreseen as a mid-infrared spectro-interferometric instrument combining the beams of up to four UTs/ATs of the Very Large Telescope Interferometer (VLTI). MATISSE will measure closure phase relations and thus offer an efficient capability for image reconstruction. In addition to this, MATISSE will open 2 new observing windows at the VLTI: the L and M band in addition to the N band. Furthermore, the instrument will offer the possibility to perform simultaneous observations in separate bands. MATISSE will also provide several spectroscopic modes. In summary, MATISSE can be seen as a successor of MIDI by providing imaging capabilities in the mid-infrared domain (for a more detailed description of MATISSE see Lopez et al., these proceedings). [less ▲]

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See detailDynamique paysagère en milieu de transition forêt-savane ivoirienne.
Barima, Y S S; Barbier, N; Bamba, I et al

in Bois et Forêts des Tropiques (2009), 299(1), 15-25

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See detailMagnetic and transport properties of HoMnO3 monocrystals
Radulov, Iliya; Lovchinov, Vassil; Dimitrov, Dimitar et al

in Journal of Optoelectronics and Advanced Materials [= JOAM] (2009), 11

This paper presents results from measurements of the magnetization, specific heat and dielectric constant, and their temperature and magnetic field dependence, for HoMnO3 single crystals. The results are ... [more ▼]

This paper presents results from measurements of the magnetization, specific heat and dielectric constant, and their temperature and magnetic field dependence, for HoMnO3 single crystals. The results are discussed in the framework of existing data on magnetic symmetries and the interactions between the Mn-spins, the rare earth moments, and the lattice. From the resulting data, the magnetic phase diagram of HoMnO3 was built. [less ▲]

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See detailDefective carbon nanotubes for single-molecule sensing
Zanolli, Zeila ULg; Charlier, Jean-Christophe

in Physical Review. B, Condensed Matter and Materials Physics (2009), 80(15),

The sensing ability of metallic carbon nanotubes toward various gas species (NO2, NH3, CO, H2O, and CO2) is investigated via ab initio calculations and Nonequilibrium Green’s Functions technique, focusing ... [more ▼]

The sensing ability of metallic carbon nanotubes toward various gas species (NO2, NH3, CO, H2O, and CO2) is investigated via ab initio calculations and Nonequilibrium Green’s Functions technique, focusing on the salient features of the interaction between molecules and oxygenated-defective tubes. As the adsorption/desorption of molecules induces modulations on the electrical conductivity of the tube, the computation of the electron quantum conductance can be used to predict gas detection. Indeed, the analysis of the conductance curve in a small energy range around the Fermi energy reveal that oxygenated-defective nanotubes are sensitive to NO2, NH3, CO, and H2O, but not to CO2. Molecular selectivity can also be provided by the nature of the charge transfer. [less ▲]

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See detailFrom paradigm dynamics towards landscape ecology ontogenesis
Bogaert, Jan ULg

in Farina, A. (Ed.) Ecology, Cognition and Landscape: Linking Natural and Social Systems. Landscape series 11. (2009)

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