References of "2011"
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See detailComplément d'épidémiologie
Bruyère, Olivier ULg

Learning material (2011)

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See detailEssential Oil Composition of Ocimum basilicum L. and Ocimum gratissimum L. from Algeria
Brada, M.; Khelifa, L. H.; Achour, D. et al

in Journal of Essential Oil-Bearing Plants [=JEOBP] (2011), 14(6), 810-814

The constituents of essential oils isolated by hydrodistillation of the overground parts of Ocimum basilicum L. and Ocimum gratissimum L. from Algeria were examined by GC and GC-MS. A total of 46 and 43 ... [more ▼]

The constituents of essential oils isolated by hydrodistillation of the overground parts of Ocimum basilicum L. and Ocimum gratissimum L. from Algeria were examined by GC and GC-MS. A total of 46 and 43 components were identified accounting for 99.4 % and 97.7 % of O. basilicum and O. gratissimum oils, respectively. The oil of O. basilicum contained, as main components, linalool (44.7 %), linalyl acetate (14.0 %), 1,8-cineole (6.7 %), myrcene (5.6 %), α-terpineol (5.1 %), geranyl acetate (4.0 %), alloocimene (2.4 %), neryl acetate (2.4 %), elemol (2.1 %) and β-caryophyllene (1.3 %). Major compounds in the essential oil of O. gratissimum were eugenol (54.8 %), β-elemene (10.9 %), 1,8 cineole (4.1 %), α-humulene (3.8 %) linalool (2.1 %) and α-amorphene (2.1 %). [less ▲]

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See detailSuper-heated Steam Drying: an Innovation of Clean Coal Technology for Lignite-fired Power Plant
Li, Sheng; Jiang, Bing; Shi, Yongchun et al

Conference (2011)

A comprehensive overview of the status of lignite pre-drying technology is given in this study. The practical problems of high energy consumption, high investment and poor safety exist in the lignite ... [more ▼]

A comprehensive overview of the status of lignite pre-drying technology is given in this study. The practical problems of high energy consumption, high investment and poor safety exist in the lignite drying using the traditional thermal drying, for the reason that the super-heated steam drying technology for lignite is put forward. The mechanism experiment research and pilot-scale test research of the super-heated steam drying technology for lignite were carried out, and the results show that the drying efficiency of the super-heated steam is better than the hot air at given conditions, the lignite drying can be accomplished stably and continuously and the drying product can meet the requirement of the industrial application of the lignite fired power plant. A more innovative approach as a new lignite Super-heated steam low-rank Coal Upgrading (SCU) is proposed by Energy Conservation Research Center of Shandong Academy of Sciences. The technical advancement in terms of energy-saving and safety among the applied technogies are compared and analyzed, and the results show this techonogy has the advantages of low energy consumption, high safety and energy saving. To sum up, the exploitation of the super-heated steam drying technology for lignite fired power plant can promote the development of the energy and power industry, and the technology has wide application prospect. [less ▲]

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See detailLong-term denosuamab treatment in postmenopausal women with osteoporosis : results from the first two years of the FREEDOM trial extension
Bone, H.; Chapurlat, R.; Brandi, M. et al

in Osteoporosis International (2011), 22(S4), 527-528

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See detailRecent advances in the determination of atomic parameters for modeling K lines in cosmically abundant elements
Quinet, Pascal ULg; Palmeri, P; Mendoza, C et al

in Journal of Electron Spectroscopy & Related Phenomena (2011), 184

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See detailEffect of Chronic confinement stress on growth, survival, blood cortisol and glucose of perch (Perca fluviatilis)
Rougeot, Carole ULg; Tomson, Thomas; Vandecan, Michaël et al

Poster (2011)

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See detailThe clinical and economic burden of poor adherence with osteoporosis medications in Ireland
Hiligsmann, Mickaël ULg; McGowan, Bernie; Bennett, Kathleen et al

in Value in Health (2011), 14

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See detailVortex Dynamics in a Superconducting Film with a Kagome and a Honeycomb Pinning Landscape
Cuppens, J.; Ataklti, G. W.; Gillijns, W. et al

in Journal of Superconductivity & Novel Magnetism (2011), 24(1-2), 7-11

The vortex dynamics in a superconducting thin Al film with a periodic Honeycomb or Kagome array of antidots has been investigated by electrical transport measurements. The large values of the ... [more ▼]

The vortex dynamics in a superconducting thin Al film with a periodic Honeycomb or Kagome array of antidots has been investigated by electrical transport measurements. The large values of the superconducting coherence length and penetration depth of the Al films guarantee a maximum of one flux quantum trapped per pinning site. This allows us to directly compare the experimental results with previous theoretical investigations based on molecular dynamics simulations. For the Kagome lattice, two submatching features not anticipated theoretically at H/H (1)=1/3 and 2/3, where H (1) is the field at which the number of vortices coincides with the number of pinning sites, are observed. Possible corresponding stable vortex patterns are suggested. For the Honeycomb pinning landscape, the commensurability effects are in agreement with the theoretical expectations. A preliminary analysis of the vortex mobility in this lattice shows the presence of a weak vortex guidance. [less ▲]

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See detailNew approaches in light/laser therapies and photodynamic treatment of acne.
Pierard-Franchimont, Claudine; PAQUET, Philippe ULg; PIERARD, Gérald ULg

in Expert Opinion on Pharmacotherapy (2011), 12(4), 493-501

Acne is a domain in which the technology and understanding of light/laser therapeutic procedures have advanced considerably. The aim of the paper was to revisit adjunctive physical treatments of acne ... [more ▼]

Acne is a domain in which the technology and understanding of light/laser therapeutic procedures have advanced considerably. The aim of the paper was to revisit adjunctive physical treatments of acne, including light/laser treatments and photodynamic therapy. This review summarizes findings about such treatment modalities with particular emphasis on efficacy and safety. A number of laser/light-based modalities have been developed to meet the increasing demand for new acne treatments. The current devices correspond, on the one hand, to light-emitting diode therapy and, on the other hand, to the 532-nm potassium titanyl phosphate laser, the 585- and 595-nm pulsed dye laser, the 1450-nm diode laser, the 1320-nm Nd:YAG laser and intense pulsed light. Photodynamic therapy is also available. It is claimed that light/laser treatments might induce a faster response compared with the 1-3 months needed for response to traditional oral and topical treatments. In conclusion, pulsed dye laser shows efficacy in some patients with mild to moderate acne. The relative effectiveness compared with other treatments is unconfirmed; from the published information, evidence-based efficacy assessment of light/laser therapies in acne remains almost impossible. [less ▲]

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See detailCompétenes et transférabilité au sein d'une famille de situations
Chenu, Florent ULg

Scientific conference (2011)

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See detailLe cancer du sein en Belgique: pourquoi sommes-nous les premiers en Europe?
DESREUX, Joëlle ULg; Gaspard, Ulysse ULg; BLERET, Valerie ULg et al

in Revue Médicale de Liège (2011), 66(5-6), 231-7

Breast cancer incidence in Belgium is on the top of European countries, with 9.697 new cases in 2008 and 106/100.000 women/year. The explanation of this high incidence in our country is probably the ... [more ▼]

Breast cancer incidence in Belgium is on the top of European countries, with 9.697 new cases in 2008 and 106/100.000 women/year. The explanation of this high incidence in our country is probably the accumulation of risk factors (many of them are linked to lifestyle), and the impact of screening and registration of cases. The relative impact of each of theses factors is less clear because we don't have powerful statistical studies. Belgium is slightly above the European mean for breast cancer mortality, with 19,4/100.000 women/year and an all stages 15-year survival of 75%. Breast cancers are responsible for around 3% of all-cause mortality in Belgian women. This article discusses the causes of this high Belgian incidence and of current decrease of incidence in western countries, and reviews known and less known risk factors of breast cancers, with a special focus on menopause hormonal treatments. [less ▲]

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See detailUnpredictable photocatalytic ability of H2-reduced rutile-TiO2 xerogel in the degradation of dye-pollutants under UV and visible light irradiation
Páez Martínez, Carlos ULg; Lambert, Stéphanie ULg; Poelman, Dirk et al

Poster (2011)

Photocatalytic degradation of organic and inorganic pollutants on the TiO2 semiconductor has been extensively studied as a way to solve environmental problems relating to wastewater and polluted air ... [more ▼]

Photocatalytic degradation of organic and inorganic pollutants on the TiO2 semiconductor has been extensively studied as a way to solve environmental problems relating to wastewater and polluted air. Anatase and rutile are the most commonly used crystalline structures of TiO2, with anatase showing a higher photocatalytic activity attributed to its higher specific surface area and its favourable band gap energy (Eg). However, its high band gap (Eg = 3.2 eV) implies the use of UV light (lambda ≤ 380 nm) to inject electrons into the conduction band (TiO2(e-CB)) and to leave holes in the valence band (TiO2(h+VB)). Although the low band gap energy of rutile-TiO2 (Eg = 3.02 eV) allows rutile to potentially absorb more solar energy than anatase, the anatase-to-rutile phase transition leads to the collapse of the TiO2 specific surface area, which may result in a decrease in the photocatalytic activity of rutile. Low specific surface area and therefore poor absorption properties lead to strong limitations in exploring the photo-efficiency of rutile. Nevertheless, rutile has been proved to be comparable to anatase in its photoelectrochemical properties when used in dye-sensitized solar cells. In the present study, a new process for the reduction of rutile-TiO2 xerogel under hydrogen flow was developed to enhance the photocatalytic activity of TiO2 materials synthesized by the sol-gel process. So a series of H2-reduced TiO2 xerogels of low specific surface area was prepared by hydrolysis and condensation of tetraisopropoxy titanium(IV) in 2-methoxyethanol. The gels were dried under vacuum, calcined in air at different temperatures (400°C, 500°C and 700°C) and finally reduced in H2 at 400 °C. The materials were characterized by X-ray diffraction, transmission electron microscopy (TEM), FT-IR spectroscopy and UV/Visible diffuse reflectance spectroscopy. The texture was determined by nitrogen adsorption-desorption measurements. The effects of the calcination/reduction treatments on the adsorption of methylene blue (MB) in aqueous solution and on the photocatalytic degradation of MB and crystal violet (CV) under UV and visible light irradiation were also evaluated. Results showed predictable modifications in the physico-chemical properties caused by the annealing of TiO2 xerogel at high calcination temperature (700 °C), such as a total anatase-to-rutile phase transition and a considerable loss of specific surface area from 260 to 2 m2 g-1. However, the higher degree of reduction exhibited by the rutile-TiO2 lattice led to unpredictable photocatalytic activity for the dye conversion under UV and visible light irradiation: the loss of specific surface area of the rutile-TiO2 sample was compensated by the increase in the affinity of this sample for the dye. Under UV light irradiation, the rutile-TiO2 xerogel obtained after a calcination at 700 °C showed a similar level of photoactivity as the one obtained with anatase-TiO2 xerogels obtained by calcination at 400 °C and 500 °C. Under visible light, unlike anatase-TiO2 xerogels, the rutile-TiO2 xerogel showed a higher dye photoconversion rate per external surface area (40 times higher) than the commercial TiO2 Degussa P25. [less ▲]

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See detailIndustrial applications of extended output-only Blind Source Separation techniques
Rutten, Christophe ULg; Nguyen, Viet Ha; Golinval, Jean-Claude ULg

in Vibration Problems Icovp 2011: The 10th International Conference on Vibration Problems (2011)

In the field of structural health monitoring or machine condition moni-toring, most vibration based methods reported in the literature require to measure responses at several locations on the structure ... [more ▼]

In the field of structural health monitoring or machine condition moni-toring, most vibration based methods reported in the literature require to measure responses at several locations on the structure. In machine condition monitoring, the number of available vibration sensors is often small and it is not unusual that only one single sensor is used to monitor a machine. This paper presents industrial applications of two possible extensions of output-only Blind Source Separation (BSS) techniques, namely Principal Component Analysis (PCA) and Second Order Blind Identification (SOBI). Through the use of block Hankel matrices, these methods may be used when a reduced set of sensors or even one single sensor is available. The objective is to address the problem of fault detection in mechanical systems using subspace-based methods. The detection is achieved by comparing the subspace features between the reference and a current state using the concept of angular coherence between subspaces. [less ▲]

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See detailComprendre les femmes au foyer, des intermittentes du travail ? « Comprendre les femmes au foyer, des intermittentes du travail ? »
Dieu, Anne Marie; Cornet, Annie ULg; Delhaye, Christine

in Revue Internationale de Psychosociologie (2011), XVII(43), 261-281

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See detailManipulating tissue metabolism by amino acids
Tesseraud, S.; Everaert, Nadia ULg; Boussaid-Om Ezzine, S. et al

in World's Poultry Science Journal (2011), 67(2), 243-251

Protein metabolism is considered to be regulated by amino acids, with major consequences on tissue development. There is evidence that lysine greatly affects carcass composition and muscle growth. In ... [more ▼]

Protein metabolism is considered to be regulated by amino acids, with major consequences on tissue development. There is evidence that lysine greatly affects carcass composition and muscle growth. In particular, a drastic effect of dietary provision of lysine has been observed on breast muscle development in chickens. Other essential amino acids, such as threonine and valine, do not have as pronounced an effect as lysine on body composition. Increasing lysine can also improve chicken breast muscle quality by increasing its ultimate pH and water holding capacity, but the underlying mechanisms are still unknown. Studies conducted over the last ten years indicate that, in addition to being substrates for protein synthesis, amino acids act as modulators of signal transduction pathways that control metabolism and cell functions. For instance, certain amino acids can modulate the activity of the intracellular protein kinases involved in the control of mRNA translation. Interestingly, enhanced responses to amino acids have been reported during the neonatal period, suggesting that early protein nutrition impacts on the development of broiler chicks. Methionine and cysteine have a very significant place among amino acids because they have several additional roles: they are precursors of essential molecules, for example cysteine is used for the synthesis of the antioxidant glutathione, and thus participates in the control of oxidative status, methionine is a source of the methyl groups needed for all biological methylation reactions, including methylation of DNA and histones, etc. These findings together indicate the importance of optimizing amino acid nutrition and providing a rationale for nutritional advice. © Copyright World's Poultry Science Association 2011. [less ▲]

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See detailDiversité culturelle, affrontements communautaires et compromis politiques à l'épreuve de la mondialisation. Tentative d'explication du blocage belge de 2007 à 2010.
Verjans, Pierre ULg

in Communautés et Sociétés. Annales de sociologie et d'anthropologie. (2011), 21-22

Created in 1830, based on the Nation-State model, Belgium was managed till 1893 by a francophone elite, who did not listen the claims of cultural diversity acknowledgement. However, this cultural ... [more ▼]

Created in 1830, based on the Nation-State model, Belgium was managed till 1893 by a francophone elite, who did not listen the claims of cultural diversity acknowledgement. However, this cultural diversity had been endorsed for a millennium and a half. The rise of power of the Flemish movement since the 1960s illustrates the various faces of globalization : backlash of the decolonization, emergence of a post-industrial economy, Europeanization and Atlantization of public policies raise a requestionning the legitimacy of the unitarian Nation-State. The failure of community negotiations since 2007 and the resulting political deadlock illustrates the priority granted again to the question of cultural diversity in Belgium, after fifteen years of lull. [less ▲]

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