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See detailInfluence de l'ajout de co-solvant pour l'estérification du D-mannose et de l'acide D-glucuronique assistée par les lipases
Richard, Gaetan ULg; Brognaux, Alison ULg; Nott, Katherine ULg et al

Poster (2010, May)

En parallèle à la production de biocarburant, le second objectif du bioraffinage est la transformation des sucres issus de l’hydrolyse de la lignocellulose en produits d’intérêt, qui se substitueront aux ... [more ▼]

En parallèle à la production de biocarburant, le second objectif du bioraffinage est la transformation des sucres issus de l’hydrolyse de la lignocellulose en produits d’intérêt, qui se substitueront aux produits de la vie courante issus du pétrole. L’une des voies de valorisation envisageable est la synthèse de molécules amphiphiles par greffage de chaînes grasses sur le sucre. Ces composés trouveraient alors des applications dans de très nombreux domaines utilisant les tensioactifs (alimentaire, détergence, peinture,…) . Dans le cadre du programme d’excellence TECHNOSE et du projet d’Action de Recherche Concertées SUPERZYM, deux sucres ont été testés : un polyol, le D-mannose, et un sucre acide, l’acide D-glucuronique. Afin de conférer un caractère amphiphile à la molécule, les lipases ont été utilisées en tant qu’outils d’estérification. Ces triglycérides hydrolases sont en effet capables de catalyser ce type de réaction, et de nombreux exemples dans la littérature démontrent le fort potentiel industriel de ces enzymes , . L’estérification du D-mannose et de l’acide D-glucuronique a donc été mise en œuvre en présence de la lipase de Candida antarctica B (Novozyme 435). La réaction est effective, mais l’ajout de co-solvants tels que la pyridine ou le DMSO améliore les vitesses initiales et les rendements de la réaction. Ces améliorations seront discutées et comparées sur ce poster. [less ▲]

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See detailInfluence de l'alimentation des vaches laitières sur la fromageabilité du lait
Grelet, Clément ULg; Froidmont, Eric; Rondia, Pierre et al

Poster (2013)

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See detailInfluence de l'alimentation sur la qualité organoleptique de la viande Blanc Bleu Belge.
Willem, Georges; Nicolay, Laurence; Sindic, Marianne ULg et al

Poster (1996, November 28)

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See detailInfluence de l'alimentation sur la secretion de la soie, à la lumière de la connaissance de l'origine et du rôle des acides aminés de l'hémolymphe
Florkin, Marcel ULg; Jeuniaux, Charles ULg

Scientific conference (1960)

The quality and the quantity of the food taken by the silkworm during the periods of tissues-growth, the period of "facultative" alimentation, in the middle of the 5th stage, have an important indirect ... [more ▼]

The quality and the quantity of the food taken by the silkworm during the periods of tissues-growth, the period of "facultative" alimentation, in the middle of the 5th stage, have an important indirect repercussion on the quantity of the silk which will be spun. In the silkworm, the elaboration of fibroin by the silk glands is realiezd to the expense of some free amino acids of haemolymph. The amino acids that we used were essentially : glycine, aspartic and glutamic acids (either free or under the form of amids) sericin and threonine. These amino acids are from alimentary origin, some of them are lajd by in tissues when they are ingested before the time when the silk glands come into activity, that is to say till the middle of the alimentary-period of the 5th age. They are them released during histolysis which starts during the facultive alimentary period, and they are used for the silk synthesis at the same time when the amino acid component of blood is secured only by the progressive lysis of the tissues. The activity of the sericigenous glands is such that the quantity of used amino acids exceeds the quantity provided by histolysis. This disproportion induces an important decrease in the glycin concentration, in the aspartic and glutamic acids in the threonine and serine free in the blood. At the end of the spinning, the sericigenous glandular activity being ended, the amino acids content of blood gets back to the initial value. Among the other amino acids provided by the alimentation, histidlne does not have shere in the silk elaboration, neither directely nor indirectly. But the histidine content of blood is the object for a compensation which seems to stand against the decrease of the osmotic pression caused by the use of the other amino acids by the glands. Methionine which is synthetized from endogenous elements, as soon as the first defecation, seems to play the same part. [less ▲]

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See detailL'influence de l'annulation d'un permis de lotir sur la validité de la vente immobilière
Onclin, François ULg

in Revue Générale de Droit Civil Belge = Tijdschrift voor Belgisch Burgerlijk (2012), (4), 169-175

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See detailL’influence de l’anxiété sur l’excitation sexuelle : Vers une théorie cognitive
Kempeneers, Philippe ULg; Barbier, Valérie

in Sexologies (2008), 17(2), 66-75

For ages, anxiety has been pointed out as the main etiological factor for sexual dysfunction. Since Wolpe, Masters & Johnson and Kaplan, the understanding of the influence of stress on sexual reactions ... [more ▼]

For ages, anxiety has been pointed out as the main etiological factor for sexual dysfunction. Since Wolpe, Masters & Johnson and Kaplan, the understanding of the influence of stress on sexual reactions has greatly evolved. This article retraces the milestones of such an evolution. In two decades, the reciprocal inhibitory theory has been replaced by a theory describing more accurately the complex relationship between anxiety and excitation. The combined development of plethysmography and cognitive psychology has greatly contributed to clarify this relationship. Indeed, the relationship between anxiety and sexual arousal appears more complex than originally recognized. Plethysmography directly measures genital vasocongestion at presentation of erotic stimuli and thus permits an objective assessment of sexual arousal in varied circumstances (erotic, anxiety producing, neutral or distracting). In studies using this paradigm, anxiety appears to have a non linear influence on sexual arousal: sometimes it is inhibitory, other times it is facilitative. Articulating the results obtained using plethysmography with the latest development in cognitive sciences, the following hypothesis came to mind: erotophobia could be considered of factor of vulnerability towards cognitive interference. In a sexual situation, erotophobic subjects focus primarily upon danger related information. This could engender a massive irruption of non erotic cues (non relevant task information) in working memory. Therefore, cognitive function available for sexual arousal would be diminished and sexual activity would be impaired. This hypothesis brings light onto the inhibitory effect of anxiety on sexual arousal among dysfunctional subjects. When this cognitive interference is not present, anxiety rather reinforces sexual arousal: either by increasing the focus of attention towards sexual cues or by misinterpreting the physiological reactions induced by the stressful situation as being sexual in origin. [less ▲]

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See detailInfluence de l'apport de différentes sources lipidiques en fin de gestation sur les résultats techniques des truies allaitantes et de leurs porcelets
Boudry, Christelle ULg; Vanrobays, Marie-Laure ULg; Devos, Sven

in IFIP; INRA (Eds.) 44èmes journées de la Recherche Porcine (2012, February 08)

From day 103 in gestation until farrowing, 4 successive groups of 15 sows received 70 g per day of one of the 3 following oils: 1) coconut oil (CO); 2) fish oil (FO) and 3) shark liver oil (SO). At day ... [more ▼]

From day 103 in gestation until farrowing, 4 successive groups of 15 sows received 70 g per day of one of the 3 following oils: 1) coconut oil (CO); 2) fish oil (FO) and 3) shark liver oil (SO). At day 102 of gestation, at farrowing and at weaning, backfat thickness of the sows was determined. The total number of piglets, the number of piglets born alive, stillborn and dead during the suckling period and the duration of gestation were measured. At birth as well as 24 hours, 14 days and 28 days (weaning) later, the piglets were weighed individually. Colostrum samples were collected at farrowing and 24 hours later for the determination of IgG and IgA contents and the fatty acid profile. Neither performance parameters of the sows nor IgG and IgA concentrations in colostrum were affected by the different dietary treatments. This was probably due to the short duration of trial period in which the oil supplements were administered. However, the colostral fatty acid profiles reflected very well the profiles of the supplemented oils. Furthermore, the different treatments affected the growth performances of the piglets. At weaning, the piglets from the FO treatment were respectively 263 and 329 g heavier than the piglets from the SO and CO treatments (P < 0.05). This corresponded to 4.2 % and 5.8 % increase of the ADG in comparison to the SO and CO treatments, respectively. These results show the importance of the fatty acid composition in colostrum on the performances of piglets and consequently the importance of the feeding of sows at the end of gestation. [less ▲]

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See detailInfluence de l'apport énergétique et de l'hibernation sur la croissance des tortues terrestres
Diez, Marianne ULg; Justet, Delphine; Detilleux, Johann ULg et al

in 15th FECAVA Eurocongress - Proceedings (2009)

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See detailL'influence de l'article 6 de la Convention européenne des droits de l'homme sur la procédure pénale belge
Jacobs, Ann ULg; Berbuto, Sandra

in Revue de Droit International et de Droit Comparé (2000)

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See detailInfluence de l'association du nomegestrol acetate sur l'amélioration de la qualité de vie induite par une estrogenotherapie chez la femme ménopausée
Reginster, Jean-Yves ULg; Zartarian, M.; Colau, J. C.

in Contraception, Fertilite, Sexualité (1992) (1996), 24(11), 847-51

Estrogen replacement therapy in postmenopausal women is followed by several benefits including a prompt improvement of quality of life. Due to uterine proliferation induced by prolonged estrogen intake ... [more ▼]

Estrogen replacement therapy in postmenopausal women is followed by several benefits including a prompt improvement of quality of life. Due to uterine proliferation induced by prolonged estrogen intake, progestogens are usually associated, on a cyclical basis, in hormonal replacement therapy prescribed to non-hysterectomized women. Persistence of the beneficial effect of estrogen on quality of life, during progestogens intake, was never investigated. We evaluated, through a specific and previously validated questionnaire, the changes in quality of life observed in 351 women recently menopaused, after 6 months of hormonal replacement therapy associating 24 days of estrogens and 12 days of administration of a non androgenic progestogen: nomegestrol acetate. Patients were randomized within two therapeutic groups in which evaluation of quality of life was performed either during the administration of estrogen alone or during administration of estrogen and progestogen. In the two groups, hormonal replacement therapy was followed by a significant improvement (P < 0,001) in quality of life and no significant difference was observed between the changes observed during estrogen or estrogen-progestogen administration. Quality of life indices measured after 6 months of hormonal replacement therapy are within the same range than values previously described in eugonadal women. We conclude that improvement of quality of life induced by estrogen replacement therapy remains unchanged during cyclical administration of nomegestrol acetate. [less ▲]

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See detailL'influence de l'attitude des soignants dans la gestion de l'anxiété chez les patients/ L'influence des lieux et de l'architecture sur l'anxiété de la personne hospitalisée
Roosen, Marie ULg

in Bulletin d'Education du Patient (2007, February 27), 25(2),

Après un texte introductif inspiré de l'expérience de l'auteur comme patient et accompagnant, l'article décrit tous les facteurs qui influent sur l'anxiété des personnes hospitalisées. L'habillement, l ... [more ▼]

Après un texte introductif inspiré de l'expérience de l'auteur comme patient et accompagnant, l'article décrit tous les facteurs qui influent sur l'anxiété des personnes hospitalisées. L'habillement, l'attitude, le toucher, la gestion de l'espace et du temps, tous ces éléments ont leur importance dans l'interaction entre le professionnel et le patient et dans la gestion de l'anxiété de ce dernier. Une seconde partie est consacrée à l'influence des lieux et de l'architecture sur l'anxiété de la personne hospitalisée. [less ▲]

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See detailInfluence de l'écartement et de la fertilisation azotée sur le rendement et la qualité des semences de Brachiaria ruziziensis en climat tropical sub-humide
Adjolohoun, Sébastien; Bindelle, Jérôme ULg; Adandedjan, CLaude et al

in Fourrages (2013), 216

Influence of row spacing and nitrogen fertilizer on Brachiaria ruziziensis (Germain and Evrard) Crins seed production and quality in a tropical subhumid climate Row spacing and nitrogen fertilizer had ... [more ▼]

Influence of row spacing and nitrogen fertilizer on Brachiaria ruziziensis (Germain and Evrard) Crins seed production and quality in a tropical subhumid climate Row spacing and nitrogen fertilizer had influenced in various way seed yield and quality. A 3-year experiment was conducted on ferruginous soils of subhumid zone of West Africa to evaluate the influence of 3 row spacings (20, 40 and 80 cm) and 4 nitrogen levels (0, 50, 100 and 200 kg Nha-1) on Brachiaria ruziziensis (Germain and Evrard) Crins (commun type) seed production, quality and dry matter production. Rainfall recorded during experiment was between 1050 and 1210 mm/year. Plots were allocated in a completely randomised block design with 4 replications per treatment. The results show that seed yield, seed fertility, diaspore and caryopsis weight varied between 26 and 114 kgha-1, 45 and 93 %, 327 and 601 mg and 219 and 475 mg, respectively. Effects of row spacing and N levels were variable through years. During the first experiment year, 20 and 40 cm row width produced significantly (p < 0.01) more seed than 80 cm row spacing but there was no significant difference between 20 and 40 cm row spacings. In the two subsequent years, row spacing had not influence seed yield. For fertilizer, N level of 50 or 100 kgha-1 had produced significantly more seed than 0 or 200 kg Nha-1 during the first year but no significant difference had been observed between 50 and 100 kg Nha-1. In the second year, seed yield ranged in the order: F50 = F100 > F200 > F0 (p < 0.05). In the third year, the ranking was: F100 > F50 > F200 > F0 (p < 0.05). Row spacing had no influence on seed fertility and seed germination. N fertilizer had significantly influenced seed fertility, diaspore weight and germination but had no effect on caryopsis weight or germination rate. It can be concluded that spacing row of 40 cm would be recommended. N fertilizer input at the rate of 50 kgha-1 is necessary during the establishment year. In the second and third years, 50 and 100 kg of Nha-1 should be applied, respectively, for optimum seed yield and quality. [less ▲]

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See detailInfluence de l'effort physique sur le systeme immunitaire muqueux
Close, Patricia ULg; Thielen, V.; Bury, Thierry ULg

in Revue Médicale de Liège (2003), 58(9), 548-53

It is now generally accepted that strenuous exhausting exercise can increase susceptibility to viral infection during the following days or weeks. This review addresses the role of mucosal immunity in ... [more ▼]

It is now generally accepted that strenuous exhausting exercise can increase susceptibility to viral infection during the following days or weeks. This review addresses the role of mucosal immunity in respiratory illness and associations with the intensity, volume and duration of exercise. Indeed habitual exercise at an intense level can cause suppression of mucosal immune parameters. [less ▲]

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See detailInfluence de l’enclavement sur l’économie rurale en République Démocratique du Congo
Bolakonga Ilye, Antoine Bily ULg; Disonama, Michel; Michel, Baudouin et al

Conference (2012)

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