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See detailEvaluation of the acoustic comfort of air-treatment systems with a multi-task procedure
Minard, Antoine; Robin, Benjamin; Fournier, Francette et al

in E.A.A. (Ed.) Proceedings of the 2012 Euronoise Congress (2012, June)

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See detailEvaluation of the aging patient’s voice by means of the VHI correlated to the DS16 and the SF-36
Morsomme, Dominique ULg; Provin, Sarah; Verduyckt, Ingrid et al

Conference (2008, May 31)

Objective vocal changes linked to the age have been largely studied these last 20 years. However, few authors have showed an interest in the subjective evaluation of the aging voice. Our research aimed ... [more ▼]

Objective vocal changes linked to the age have been largely studied these last 20 years. However, few authors have showed an interest in the subjective evaluation of the aging voice. Our research aimed the study of the aging voice by means of the Voice Handicap Index (VHI) Jacobson et al., (1997) in 90 subjects divided into three groups: « 30 elderly subjects in a nursing home », « 30 elderly subjects living at home » and « 30 young subjects » as the control group. We compared the results from these three groups and controlled for several variables such as age, living place, personality, dependency and repetition, that can have an impact on the VHI score. The DS16 (Denollet, 1998) and the SF-36 (Ware et al, 1993) were used to test personality and dependency. Our results showed that the scores on the global and physical scales are higher for all groups at the retest (p=0,046; p=0,015). Although the VHI seems adapted to the aging subject, some improvements are suggested concerning the items addressing the professional life and social life (F8, F16, F22, E24 et E29). We also observe correlations between the three subscales (p<0,001). Concerning the DS16, the personality trait « negative affect » and « social inhibition » are correlated to the global score at the test and the retest (P=0,002 ; P =0,001 and P=0,048 ; P=0,015). Type-D personality raises the physical scores (P=0,018 ; P=0,006) and the global scores (P=0,014 ; P=0,003). Moreover, the VHI is correlated to 6 dimensions of general health related quality of life and with the global score of the SF-36 (P<0,001). The elderly subjects obtain higher functional (P=0,007 ; P=0,006), physical (P=0,009 ; P<0,001) and global (P=0,003 ; P<0,001) scores than the young subjects. Moreover, the subjects living in a nursery home obtain a higher emotional score on the univariate analysis (P=0,008 ; P=0,02) than those living at home. At the multivariate analysis, the variable « nursery home » has a significant impact on the functional score (P=0,02). Finally, a multivariate linear regression shows that the variable sex increases all the scores at the VHI (P=0,048 ; P=0,044 ; P=0,03 ; P=0,023) and the variable « dependency » (P<0,001) increases the emotional, physical and global score. Although vocal quality in the elderly might seem only slightly altered, age is a factor that increases functional, physical and global scores at the VHI. However, sex, dependency and personality type are also influencing vocal self-evaluation and can moderate the effect of age. [less ▲]

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See detailEvaluation of the allelopathic potential of water-soluble compounds of barley (Hordeum vulgare L. subsp. vulgare) and great brome (Bromus diandrus Roth.) using a modified bioassay
Bouhaouel, Imen ULg; Gfeller, Aurélie; Fauconnier, Marie-Laure ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment (2016), 20(4), 482-494

Description of the subject. The present study focuses on the description of the allelopathic interactions between wild and crop species that may occur in a given ecosystem. Objectives. The objective is ... [more ▼]

Description of the subject. The present study focuses on the description of the allelopathic interactions between wild and crop species that may occur in a given ecosystem. Objectives. The objective is the evaluation of the allo- and autoinhibition activity of root exudates of barley (Hordeum vulgare L. subsp. vulgare) and great brome (Bromus diandrus Roth.) seedlings by water-soluble allelochemicals. Method. The allelopathic activities of five Tunisian barley genotypes (modern varieties and landraces), one Saudi Arabian barley landrace and great brome were assessed using a modified laboratory bioassay named “seedling-after-seedling agar method”. Results. The barley or the great brome reduced, to a greater extent, the root growth compared to the shoot growth of receiver species. The response of the root system architecture of the great brome towards barley root exudates was studied in detail. All the measured root traits were highly sensitive to the presence of barley. In our conditions, the allelopathic activity of barley root exudates had no apparent relationship with the size of the root and a prominent action of genetic determinants in the allelopathic potential between genotypes is proposed. The alloinhibitory activity of barley or great brome root exudates deferred between the receiver species but was always higher than the autoinhibition potential. The autoinhibition in barley proved to depend on whether the genotypes used as donor and receiver are identical or different, suggesting a specific interaction of allelochemicals with the receiver plant. These molecules seem to be the main actors in the allelopathic barley potential as external factors such variations of pH have no evident relevance in the inhibition process. Conclusions. Barley and great brome exude molecules in their surroundings. This affects the growth of the receiver plants, suggesting that these compounds might contribute to the plant community dynamics. [less ▲]

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See detailEvaluation of the anesthetic-lipid association constant. A monolayer approach.
Guilmin, T.; Goormaghtigh, E.; Brasseur, Robert ULg et al

in Biochimica et Biophysica Acta (1982), 685(2), 169-76

A new approach is presented which allows to describe the binding of different local anesthetics to lipids. Lipids (DL- alpha-dipalmitoylphosphatidylcholine, phosphatidylserine, cardiolipin) are spread at ... [more ▼]

A new approach is presented which allows to describe the binding of different local anesthetics to lipids. Lipids (DL- alpha-dipalmitoylphosphatidylcholine, phosphatidylserine, cardiolipin) are spread at the air-water interface and the anesthetic (procaine, butacaine, tetracaine) injected into the aqueous subphase. The equilibrium constants associated to the interfacial reaction: D+ (subphase) +L- (monolayer) in equilibrium DL (monolayer) (where D+ denotes the anesthetics, L- the lipid anionic site and DL the complex) are calculated from an experimental evaluation of the surface potential of the lipid monolayer. This mode of determination is based essentially on the good correlation between the experimental values of the surface potential and the theoretical predictions from the Gouy-Chapman theory. Fluorescence measurements on liposomes are carried out in order to locate the position of the drug in the lipid layer. This method can be extended to any positively charged drug-anionic lipid interaction. [less ▲]

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See detailEvaluation of the antiproliferative effects of infusions and essential oil of Aloysia gratissima
Hister, CAL; Laughinghouse IV, Haywood ULg; Silva, CB et al

in Pakistan Journal of Biological Sciences (2009), 12(24), 1581-1584

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See detailEvaluation of the Antiproton Flux from the Antineutrino Electron Scattering
Alekseev, V. V.; Belotsky, K. M.; Bogomolov, Yu V. et al

in Journal of Physics: Conference Series (2016), 675(3), 032004

Recent experiments in high enegry cosmic ray physics, PAMELA and AMS-02, excite a new interest to the mechanisms of generation of galactic antiparticles. In spite of the fact that global picture coincides ... [more ▼]

Recent experiments in high enegry cosmic ray physics, PAMELA and AMS-02, excite a new interest to the mechanisms of generation of galactic antiparticles. In spite of the fact that global picture coincides with the predictions of the standard model, there are some black spots stimulating scientists to involve into research a particularly new physics like dark matter. In the present work, we make an attempt to estimate the impact of standard neutrino processes into the total flux of secondary antiprotons detected by contemporary experiments. [less ▲]

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See detailEvaluation of the antitrypanosomal activity of several plants traditionally used in Benin to treat sleeping sickness
Hoet, Sarah; Cottem, D; Opperdoes, F et al

Poster (2001)

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See detailEvaluation of the antitumor activity of 16K prolactin
Kinet, Virginie; Nguyen, Ngoc-Quynh-Nhu ULg; Sabatel, Céline et al

Poster (2009)

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See detailEvaluation of the antitumor activity of 16K prolactin
Kinet, Virginie; Nguyen, Ngoc-Quynh-Nhu ULg; Cornet, Anne ULg et al

Poster (2007)

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See detailEvaluation of the aphid and aphidophagous beneficials diversity in a pea and potato association
Bosquée, Emilie ULg; Chevalier Mendes Lopes, Thomas ULg; Serteyn, Laurent ULg et al

Poster (2014, May 20)

Crop associations can have beneficial effects on the control of insect pests. This study was conducted in the Shandong province (China) to assess the impact of potatoes and peas association on the ... [more ▼]

Crop associations can have beneficial effects on the control of insect pests. This study was conducted in the Shandong province (China) to assess the impact of potatoes and peas association on the populations of aphids and aphidophagous beneficials. Observations on potato plants and trapping were performed. During the season, the degree of infestation didn’t differ significantly between the association and the pure stand. However, the aphidophagous beneficials were more abundant in the association comparing to the pure stand. Trapping results give a more general idea about the richness and diversity of natural enemies present in the environment. Aphidius gifuensis (Ashmead) and Aphelinus abdominalis Dalman are the most abundant parasitoids. Among predators, Propylea japonica (Thunberg) and Harmonia axyridis (Pallas) are prevalent. Few hoverflies and lacewings were trapped. Results from the observations on plants do not support the resource concentration hypothesis. However, the enemy hypothesis was confirmed for the aphidophagous beneficials. Therefore, this association can have a beneficial effect on the control of aphid populations. [less ▲]

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See detailEVALUATION OF THE AUTOMATIC IMAGE REGISTRATION FEATURES OF A KV CONE-BEAM CT IMAGING SYSTEM
JANVARY, Zsolt Levente ULg; JANSEN, Nicolas ULg; MATHOT, Michel ULg et al

Poster (2010, September)

As a part of the clinical implementation of a kV cone-beam CT (CBCT) volumetric imaging system for new Elekta Synergy linear accelerators, the automatic image registration (IR) system of the XVI Software ... [more ▼]

As a part of the clinical implementation of a kV cone-beam CT (CBCT) volumetric imaging system for new Elekta Synergy linear accelerators, the automatic image registration (IR) system of the XVI Software was studied. We examined the effect of the variability of matching parameters of the software on the results of the patient position errors. [less ▲]

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See detailEVALUATION OF THE AUTOMATIC IMAGE REGISTRATION FEATURES OF A KV CONE-BEAM CT IMAGING SYSTEM
JANVARY, Zsolt Levente ULg; JANSEN, Nicolas ULg; MATHOT, Michel ULg et al

in Radiotherapy & Oncology (2010), 96(supp 1),

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See detailEvaluation of the automatic ionogram scaling for use in real-time ionospheric density profile specification: Dourbes DGS-256/ARTIST-4 performance.
Stankov, Stanimir; Jodogne, Jean-Claude; Kutiev, Ivan et al

in Annals of Geophysics = Annali di Geofisica (2012), 55(2), 283-291

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See detailEvaluation of the bacterial diversity and its evolution during storage of fresh beef from British and Belgian origins under different atmosphere and temperature conditions
Didimo Imazaki, Pedro Henrique ULg; Tahiri, Assia ULg; Taminiau, Bernard ULg et al

Conference (2013, December 10)

The purpose of this study was to evaluate the bacterial diversity and its evolution during storage of fresh beef, depending on its origin, packaging and storage temperature, by using a metagenomic ... [more ▼]

The purpose of this study was to evaluate the bacterial diversity and its evolution during storage of fresh beef, depending on its origin, packaging and storage temperature, by using a metagenomic approach. Metagenomic analyzes revealed that the origin, atmosphere and temperature conditions influenced the selection of the predominant flora. Vacuum-packaged British samples presented higher concentrations of Lactobacillus algidus at the begging of the experiment than Belgian samples. Furthermore, the development of Lactobacillus algidus was favored in British and Belgian samples preserved under vacuum at −1 °C, while a predominance of Lactococcus piscium was observed for samples stored at +4 °C. These microorganisms have already been isolated from beef, but taking into account that the knowledge about these two species is currently limited, it is still not possible to state if the conservability of the tested samples was influenced by the presence of these bacteria. Moreover, storage under modified atmosphere favored the development of Leuconostoc gasicomitatum in both British and Belgian samples. This specie is often associated with spoilage of cold-stored modified-atmosphere-packaged (MAP) nutrient-rich foods. This result can partially explain the short shelf-life of the samples once they are stored under this condition. Metagenomics showed to be a useful tool to study the microbial population of a complex matrix since some of the identified genera could not have grown or have grown slowly in culture media commonly used. In addition, it helped to clarify the evolution of the bacterial ecosystem associated to meat during its storage. [less ▲]

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See detailEvaluation of the biocompatibility of DPSCs into functionalized 3D polymeric textile
Ortiz Magdaleno, Marine ULg

in Dental Materials Journal (2013)

Detailed reference viewed: 29 (4 ULg)