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See detailEvaluation of chicory seeds maturity by chlorophyll fluorescence imaging
Ooms, David ULg; Destain, Marie-France ULg

in Biosystems Engineering (2011), 110

Chicory (Cichorium intybus L.) seed production includes sorting to remove foreign materials and non-viable seeds. A machine vision system was developed to monitor the fluorescence in order to detect the ... [more ▼]

Chicory (Cichorium intybus L.) seed production includes sorting to remove foreign materials and non-viable seeds. A machine vision system was developed to monitor the fluorescence in order to detect the immature chicory seeds. It comprised a monochromatic light source, a highpass filter and a monochromatic CCD camera sensitive to red and infrared. With this device, blue light reflected by the seeds was blocked whilst red fluorescence was measured by the camera. A segmentation algorithm was designed to estimate separately the fluorescence intensities of the pappus, a crown of scales, and the main body of the pericarp. Experiments were carried out on five clones of cross-pollinated chicory plants used for seed production. Two hundred flower heads were labelled at flowering and harvested at different times during the maturation process expressed in “days after flowering” (DAF). Germination tests were performed according to the recommendations of the International Seed Testing Association to measure the germination percentage (GP) and the germination rate (GR), an indicator of seed vigour. Seed chlorophyll content diminished during maturation following a different logistic trend for the pappus and the pericarp. The GP increased from 18 DAF to reach its maximum value at 21 DAF, but the GR remained low until 30 DAF and increased afterwards. The potential of chlorophyll fluorescence to be used as an indicator of chicory seed vigour was the greatest between 21 and 36 DAF. [less ▲]

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See detailImprovement of the Composition of Tunisian Myrtle Berries (Myrtus 2 communis L.) Alcohol Extracts
Snoussi, A.; Ben haj Koubaier, H.; Essaidi, Ismahen et al

in Journal of Agricultural and Food Chemistry (2011), 3b2(9),

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See detailMetathesis access to monocyclic iminocyclitol-based therapeutic agents
Dragutan, Ileana; Dragutan, Valerian; Mitan, Carmen et al

in Beilstein Journal Of Organic Chemistry (2011), 7

By focusing on recent developments on natural and non-natural azasugars (iminocyclitols), this review bolsters the case for the role of olefin metathesis reactions (RCM, CM) as key transformations in the ... [more ▼]

By focusing on recent developments on natural and non-natural azasugars (iminocyclitols), this review bolsters the case for the role of olefin metathesis reactions (RCM, CM) as key transformations in the multistep syntheses of pyrrolidine-, piperidine-and azepane-based iminocyclitols, as important therapeutic agents against a range of common diseases and as tools for studying metabolic disorders. Considerable improvements brought about by introduction of one or more metathesis steps are outlined, with emphasis on the exquisite steric control and atom-economical outcome of the overall process. The comparative performance of several established metathesis catalysts is also highlighted. [less ▲]

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See detailForeword
Deroo, Emeline ULg; Leclercq, Bruno ULg

in Logique et Analyse (2011), 54(214), 125-126

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See detailVictimes et justice pénale: les défis d'une cohabitation difficile.
Lauwaert, Katrien ULg

in Revue de la Faculté de Droit de l'Université de Liège (2011), (n°2), 291-295

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See detailInfluence of HIV-1 and placental malaria co-infection on newborn biometry and Apgar scores in Kinshasa Democratic Republic of Congo
Modia O'Yandjo, A.; Foidart, Jean-Michel ULg; RIGO, Jacques ULg

in Journal de Gynécologie, Obstétrique et Biologie de la Reproduction (2011), 40(5), 460-4

Objective The aim of this study was to assess the impact of HIV-1 and placental malaria co-infection on newborn biometry and Apgar scores. Methods 146 HIV-1 infected and 149 HIV-1 uninfected consent ... [more ▼]

Objective The aim of this study was to assess the impact of HIV-1 and placental malaria co-infection on newborn biometry and Apgar scores. Methods 146 HIV-1 infected and 149 HIV-1 uninfected consent mothers and their newborns were recruited. Placental biopsies examination confirmed the presence or absence of placental malaria. Birth weight (BW), placental weight, cranial circumference, brachial perimeter, height, Body Mass Index (BMI) and Apgar scores at 1’, 5’, 10’ were taken. The Chi2 test and t -Student test were used for data statistical analysis. Results The global placental malarial infection prevalence was 72% but was 91% in HIV-1 infected vs. 53.7% in HIV-1 uninfected mothers (p <0.0001). The mean BW of HIV-1 co-infected mother’s newborns was slightly inferior to that of HIV-1 uninfected mother’s babies (3,033±524g vs. 3,236±565g) but this difference was not statistically significant (p >0.05). No other significant biometric differences were noted (p >0.05). But, the co-infection influenced negatively Apgar scores at 5’ (p <0.05). Conclusion HIV-1 co-infected mothers were more frequently exposed to placental malaria infection. The co-infection reduced the Apgar scores taken at the fifth minute. [less ▲]

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See detailLe traité d'alliance romano-cnidien de 45 av. J.-C.
Famerie, Etienne ULg

in Cahiers du Centre Gustave Glotz (2011), 20 (2009, publ. 2011)

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See detailWell Shaped Mn(3)O(4) Nano-octahedra with Anomalous Magnetic Behavior and Enhanced Photodecomposition Properties
Li, Yu; Tan, Haiyan; Yang, Xiao-Yu et al

in Small : Nano Micro (2011), 7(4), 475-483

Very uniform and well shaped Mn(3)O(4) nano-octahedra are synthesized using a simple hydrothermal method under the help of polyethylene glycol (PEG200) as a reductant and shape-directing agent. The nano ... [more ▼]

Very uniform and well shaped Mn(3)O(4) nano-octahedra are synthesized using a simple hydrothermal method under the help of polyethylene glycol (PEG200) as a reductant and shape-directing agent. The nano-octahedra formation mechanism is monitored. The shape and crystal orientation of the nanoparticles is reconstructed by scanning electron microscopy and electron tomography, which reveals that the nano-octahedra only selectively expose {101} facets at the external surfaces. The magnetic testing demonstrates that the Mn(3)O(4) nano-octahedra exhibit anomalous magnetic properties: the Mn(3)O(4) nano-octahedra around 150 nm show a similar Curie temperature and blocking temperature to Mn(3)O(4) nanoparticles with 10 nm size because of the vertical axis of [001] plane and the exposed {101} facets. With these Mn(3)O(4) nano-octahedra as a catalyst, the photodecomposition of rhodamine B is evaluated and it is found that the photodecomposition activity of Mn(3)O(4) nano-octahedra is much superior to that of commercial Mn(3)O(4) powders. The anomalous magnetic properties and high superior photodecomposition activity of well shaped Mn(3)O(4) nano-octahedra should be related to the special shape of the nanoparticles and the abundantly exposed {101} facets at the external surfaces. Therefore, the shape preference can largely broaden the application of the Mn(3)O(4) nano-octahedra. [less ▲]

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See detailSea ice and snow cover characteristics during the winter-spring transition in the Bellingshausen Sea: an overview of SIMBA 2007
Lewis, M. J.; Tison, Jean-Louis; Weissling et al

in Deep-Sea Research Part II, Topical Studies in Oceanography (2011), 58(9-10), 10191038

The Sea Ice Mass Balance in the Antarctic (SIMBA) experiment was conducted from the RVIB N.B. Palmer in September and October 2007 in the Bellingshausen Sea in an area recently experiencing considerable ... [more ▼]

The Sea Ice Mass Balance in the Antarctic (SIMBA) experiment was conducted from the RVIB N.B. Palmer in September and October 2007 in the Bellingshausen Sea in an area recently experiencing considerable changes in both climate and sea ice cover. Snow and ice properties were observed at 3 short-term stations and a 27-day drift station (Ice Station Belgica, ISB) during the winter-spring transition. Repeat measurements were performed on sea ice and snow cover at 5 ISB sites, each having different physical characteristics, with mean ice (snow) thicknesses varying from 0.6m (0.1m) to 2.3m (0.7m). Ice cores retrieved every five days from 2 sites and measured for physical, biological, and chemical properties. Three ice mass-balance buoys (IMBs) provided continuous records of snow and ice thickness and temperature. Meteorological conditions changed from warm fronts with high winds and precipitation followed by cold and calm periods through four cycles during ISB. The snow cover regulated temperature flux and controlled the physical regime in which sea ice morphology changed. Level thin ice areas had little snow accumulation and experienced greater thermal fluctuations resulting in brine salinity and volume changes, and winter maximum thermodynamic growth of ~0.6m in this region. Flooding and snow-ice formation occurred during cold spells in ice and snow of intermediate instead nearly isothermal, highly permeable ice persisted. In spring, short-lived cold air episodes did not effectively penetrate the sea ice nor overcome the effect of ocean heat flux, thus favoring net ice thinning from bottom melt over ice thickening from snow-ice growth, in all cases. These warm ice conditions were consistent with regional remote sensing observations of earlier ice breakup and a shorter sea ice season, more recently observed in the Bellingshausen Sea. [less ▲]

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See detailEfficacy of monthly oral ibandronate is sustained over 5 years: the MOBILE long-term extension study.
Miller, P. D.; Recker, R. R.; Reginster, Jean-Yves ULg et al

in Osteoporosis International (2011)

The long-term efficacy and safety of once-monthly ibandronate were studied in this extension to the 2-year Monthly Oral Ibandronate in Ladies (MOBILE) trial. Over 5 years, lumbar spine bone mineral ... [more ▼]

The long-term efficacy and safety of once-monthly ibandronate were studied in this extension to the 2-year Monthly Oral Ibandronate in Ladies (MOBILE) trial. Over 5 years, lumbar spine bone mineral density (BMD) increased from baseline with monthly ibandronate 150 mg (8.4%). Long-term monthly ibandronate is effective and well tolerated for up to 5 years in women with postmenopausal osteoporosis. INTRODUCTION: Once-monthly therapy with ibandronate has been studied for up to 5 years in a long-term extension (LTE) to the 2 year MOBILE trial. METHODS: This multicenter, double-blind extension study of monthly ibandronate involved postmenopausal women who had completed 2 years of the MOBILE core study, with >/=75% adherence. Patients were reallocated, or were randomized from daily therapy, to ibandronate 100 mg monthly or 150 mg monthly for a further 3 years. RESULTS: A pooled intent-to-treat (ITT) analysis of 344 patients receiving monthly ibandronate from the core MOBILE baseline showed increases over 5 years in lumbar spine BMD (8.2% with 100 mg and 8.4% with 150 mg). Three-year data relative to MOBILE LTE baseline in the full ITT population of all 698 patients randomized or reallocated from MOBILE (including those previously on daily treatment) showed, on average, maintenance of proximal femur BMD gains achieved in the core 2-year study, with further small gains in lumbar spine BMD. In general, maintenance of efficacy was also indicated by markers of bone metabolism. CONCLUSIONS: There were no tolerability concerns or new safety signals. Monthly treatment with ibandronate 100 and 150 mg is effective and well tolerated for up to 5 years in women with postmenopausal osteoporosis. [less ▲]

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See detailPotential contribution of prenatal estrogens to the sexual differentiation of mate preferences in mice.
Brock, Olivier; Bakker, Julie ULg

in Hormones and Behavior (2011), 59(1), 83-9

The neural mechanisms controlling sexual behavior are sexually differentiated by perinatal actions of gonadal hormones. We recently observed using female mice deficient in alpha-fetoprotein (AFP-KO) and ... [more ▼]

The neural mechanisms controlling sexual behavior are sexually differentiated by perinatal actions of gonadal hormones. We recently observed using female mice deficient in alpha-fetoprotein (AFP-KO) and which lack the protective actions of AFP against maternal estrogens, that exposure to prenatal estrogens completely defeminized their potential to show lordosis behavior in adulthood. Therefore, we determined here whether mate preferences were also affected in female AFP-KO mice. We observed a robust preference for an estrous female over an intact male in female AFP-KO mice, which were ovariectomized in adulthood and subsequently treated with estradiol and progesterone, whereas similarly treated WT females preferred the intact male over the estrous female. Gonadally intact WT males preferred the estrous female over the male, but only when visual cues were blocked by placing stimulus animals behind opaque partitions. Furthermore, when given the choice between an intact male and a castrated male, WT females preferred the intact male, whereas AFP-KO females showed no preference. Finally when given the choice between an estrous female and an ovariectomized female, WT males preferred the estrous female whereas AFP-KO females preferred the ovariectomized female or showed no preference depending on whether they could see the stimulus animals or not. Taken together, when AFP-KO females are tested under estrous conditions, they do not show any male-directed preferences, indicating a reduced sexual motivation to seek out the male in these females. However, they do not completely resemble males in their mate preferences suggesting that the male-typical pattern of mate preferences is not solely organized by prenatal estrogens. [less ▲]

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See detailModeling the oxygen K absorption in the interstellar medium : an XMM-Newton view of Sco X-1
Garcia, J; Ramirez, J M; Kallman, T R et al

in Astrophysical Journal Letters (2011), 731

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See detailSartre (Jean-Paul)
Cormann, Grégory ULg

in Marzano, Michela (Ed.) Dictionnaire de la violence (2011)

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See detailSur le théorème de Mamikon
Bair, Jacques ULg; Henry, Valérie ULg

in Losanges (2011), 12

Cet article donne un aperçu de l'analyse mathématique visuelle, mise au point par Mnatsakanian et Apostol. Cette théorie permet notamment de calculer de manière élémentaire des aires de régions planes ... [more ▼]

Cet article donne un aperçu de l'analyse mathématique visuelle, mise au point par Mnatsakanian et Apostol. Cette théorie permet notamment de calculer de manière élémentaire des aires de régions planes sans faire appel aux techniques du calcul intégral. [less ▲]

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See detail"De l'incidence du contexte sur les choix orthographiques en FLE : étude de cas"
Defays, Jean-Marc ULg; Saenen, Frédéric ULg

in Travaux Neuchâtelois de Linguistique (2011), (54), 129-146

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See detailSquatting test: A posture to study and counteract cardiovascular abnormalities associated with autonomic dysfunction.
PHILIPS, Jean-Christophe ULg; SCHEEN, André ULg

in Autonomic neuroscience : basic & clinical (2011)

The squatting test is an active posture manoeuvre that imposes one of the most potent orthostatic stresses. In normal subjects, the changes in blood pressure and heart rate are transient because of ... [more ▼]

The squatting test is an active posture manoeuvre that imposes one of the most potent orthostatic stresses. In normal subjects, the changes in blood pressure and heart rate are transient because of appropriate baroreflex homeostasis and do not provoke symptoms. However, in various pathological conditions, both the increase in blood pressure during squatting and the decrease in blood pressure during standing may be more important and sustained, potentially leading to complaints and adverse events. Squatting has been used to evaluate patients with tetralogy of Fallot, heart transplant, dysautonomia, including diabetic cardiovascular autonomic neuropathy, and individuals prone to vasovagal syncope. Careful analysis of changes in blood pressure and heart rate during the transition from standing to squatting and from squatting to standing allows the early detection of altered vagal and/or sympathetic function. Of note squatting position has been proposed as a therapeutic means to counteract the fall in blood pressure in patients suffering from dizziness due to dysautonomia and orthostatic hypotension or presenting pre-syncope symptoms, such as soon after exercise. The aims of the present review are to analyse the haemodynamic pattern during a squatting test in various pathological situations and to describe what may be the negative and positive haemodynamic changes associated with this posture. We were especially interested in using the squatting test for the assessment of cardiovascular autonomic neuropathy associated with diabetes mellitus. [less ▲]

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See detailEfficacy and safety of strontium ranelate in the treatment of knee ostoarthritis : a randomized, double-blind, placebo-controlled international trial
Reginster, Jean-Yves ULg; Chapurlat, R.; Christiansen, C. et al

in Osteoporosis International (2011), 22(S5), 742-743

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See detailCompte rendu : Joseph BEAUJEAN, «Auteurs de dictionnaires et autres documents où l'on trouve les noms en wallon "liégeois" de plantes sauvages, utilitaires ou ornementales»
Baiwir, Esther ULg

in Wallonnes : Chronique de la Société de Langue et de Littérature Wallonnes (2011), 2

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See detailInfluence of bridge deck shape on extreme buffeting forces
Flamand, Olivier; Denoël, Vincent ULg

in Proceedigs of 13th International Conference on Wind Engineering (2011)

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