Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
Peer Reviewed
See detailEnrichment of anhydrous milk fat in polyunsaturated fatty acid residues from linseed and rapeseed oils through enzymatic interesterification
Aguedo, Mario ULg; Hanon, EMILIEN ULg; Danthine, Sabine ULg et al

in Journal of Agricultural and Food Chemistry (2008), 56(5), 1757-1765

Lipozyme TL IM was used in a solvent-free batch and microaqueous system for enzymatic interesterification of anhydrous milkfat (AMF) with linseed oil (LO) in binary blends and with rapeseed oil (RO) in ... [more ▼]

Lipozyme TL IM was used in a solvent-free batch and microaqueous system for enzymatic interesterification of anhydrous milkfat (AMF) with linseed oil (LO) in binary blends and with rapeseed oil (RO) in one ternary blend. The aim was to obtain and characterize physicochemically fats enriched with unsaturated C-18 fatty acids (oleic, linoleic, and, especially, linolenic acids) from natural vegetable oils. Binary blends of AMF/LO 100/0, 90/10, 80/20, 70/30, and 60/40 (w/w) were interesterified. The change in triacylglycerol (TAG) profiles showed that quasi-equilibrium conditions were reached after 4-6 h of reaction. Free fatty acid contents < 1%. The decrease in solid fat content and in dropping point temperature obtained with increasing content of LO and interesterification resulted in good plastic properties for the products originating from the blends 70/30 and 60/40. This was confirmed by textural measurements. Melting profiles determined by differential scanning calorimetry showed complete disappearance of low-melting TAGs from LO and the formation of intermediary species with a lower melting temperature. Oxidative stability of the interesterified products was diminished with increasing LO content, resulting in low oxidation induction times. A ternary blend composed of AMF/RO/LO 70/20/10 gave satisfactory rheological and oxidative properties, fulfilling the requirements for a marketable spread and, moreover, offering increased potential health benefits due to the enriched content in polyunsatured fatty acid residues. [less ▲]

Detailed reference viewed: 101 (27 ULg)
Full Text
Peer Reviewed
See detailEnrichment of Anhydrous Milk Fat in Polyunsatured Fatty Acid Residues
Aguedo, Mario ULg; Hanon, Emilien ULg; Danthine, Sabine ULg et al

Poster (2009)

Lipozyme TL IM was used in a solvent-free batch, microaqueous system for enzymatic interesterification of anhydrous milkfat (AMF) with linseed oil (LO) in binary blends and with rapeseed oil (RO) in one ... [more ▼]

Lipozyme TL IM was used in a solvent-free batch, microaqueous system for enzymatic interesterification of anhydrous milkfat (AMF) with linseed oil (LO) in binary blends and with rapeseed oil (RO) in one ternary blend. [less ▲]

Detailed reference viewed: 23 (10 ULg)
Full Text
See detailEnrichment of anhydrous milk fat in polyunsatured fatty acid residues from linseed and rapeseed oil through enzymatic interesterification
Aguedo, Mario ULg; Hanon, Emilien ULg; Danthine, Sabine ULg et al

Poster (2007)

The interesterification, or ester exchange, between two fats leads to the rearrangement of acyl moieties in both. The use of a sn-1,3-specific lipase confines the exchange of fatty acid residues to the sn ... [more ▼]

The interesterification, or ester exchange, between two fats leads to the rearrangement of acyl moieties in both. The use of a sn-1,3-specific lipase confines the exchange of fatty acid residues to the sn-1 and sn-3 positions of triacylglycerides (TAG), generating products with characteristics that cannot be obtained through a chemical process or a blending. Such reactions require mild conditions with no solvent needed and they yield no unhealthful trans fatty acids, justifying the stepped-up interest of enzymatic interesterification for the production of margarines and other food fats. The aim of this work was to use enzymatic interesterification to enrich anhydrous milk fat (AMF) with unsaturated fatty acid C18 residues from linseed oil (LO) and eventually from rapeseed oil (RO) through some binary blends and one ternary blend. For that, the 1,3-specific lipase from Thermomyces lanuginosa (Lipozyme TL IM) was used in solvent-free batch and micro-aqueous reactions and fat blends with different mass ratios were tested. The evolution of TAG profiles, of interesterification degre (ID) and of free fatty acids (FFA), was followed along the reactions. Determination of dropping points (DP) and solid fat contents (SFC) enabled a rheological characterization of the products. The end products were also characterized for their oxidative stability and their textural properties. [less ▲]

Detailed reference viewed: 61 (8 ULg)
Full Text
Peer Reviewed
See detailEnrichment of logging gaps with moabi (Baillonella toxisperma Pierre) in a Central African rain forest
Doucet, Jean-Louis ULg; Kouadio, Y. L.; Monticelli, D. et al

in Forest Ecology & Management (2009), 258(11), 2407-2415

Studies of regeneration in African rain forests suggest that without silvicultural treatments, natural succession in logging gaps may not result in the establishment of timber species. In this paper we ... [more ▼]

Studies of regeneration in African rain forests suggest that without silvicultural treatments, natural succession in logging gaps may not result in the establishment of timber species. In this paper we present the results of an experimental enrichment planting with moabi (Baillonella toxisperma Pierre), a valuable and important timber species harvested in Central Africa. Although forest gaps are generally considered as favourable for the regeneration of this species, a survey conducted in a forest concession in southeastern Cameroon provided an estimate of only 12.7 seedlings ha 1, suggesting that the species was, in fact, poorly represented in logging gaps within the study area. To further investigate the dynamics of the moabi in logging gaps, 795 seeds were sown in 15 logging gaps and 410 nursery-raised seedlings were planted in 15 other gaps. A biannual monitoring program over a 30-month period showed a lower survival rate for seedlings from sowing (75.9%) compared to that of nursery-raised seedlings (95.3%). Planted seedlings reached on average 229.3 cm whereas seedlings from sowing were 167.5 cmtall, with the observed difference roughly corresponding to the average height of the nursery-raised seedlings at the time they were introduced to the logging gaps. After 30 months, the diameters of planted seedlings (16.8 mm) were also greater than those of the directly sown individuals (12.5 mm). Forest gap characteristics significantly influenced the growth of the plants. Factors accounting for the differences were total solar radiation, the soil content of coarse sand, the topographic position of the gap, the vegetation cover and the density of Macaranga spp. Whilst total solar radiation had a positive influence on growth, the remaining factors had impacted growth negatively. A streamlined technique was tested by planting 7 seedlings in 250 gaps. Without additional site maintenance, 29.3% of the moabi seedlings emerged naturally from the competing vegetation after 24 months. With biannual maintenance some 89.4% of seedlings became successfully established. Clearance operations had no significant influence on the height of plants whilst plant diameter was greater in cleared gaps. The total cost of the enrichment technique was 5.5 EUR per gap without maintenance and 7.5 EUR per gap with a single maintenance measure. Whilst long-term monitoring is needed, this study suggests a high survival rate of moabi introduced in logging gaps, and a growth rate 10 times higher than previously reported under canopy cover. These findings, combined with the low costs of the enrichment technique, support the use of silvicultural measures in logging gaps to restore the forest. [less ▲]

Detailed reference viewed: 119 (43 ULg)
Peer Reviewed
See detailEnrico Mattioda, Teorie della tragedia nel settecento, Modena, Mucchi, 1994, 366
Curreri, Luciano ULg

in Franco-Italica (1996), 9

Detailed reference viewed: 20 (0 ULg)
Full Text
See detailL'enrobage des semences de coton au Burundi à l'aide d'insecticides systémiques pour la maîtrise d'Aphis gossypii Glov.
Carême, C.; Perreaux, D.; Schiffers, Bruno ULg

in Proceedings ANPP - Troisième conférence internationale sur les ravageurs en agriculture (1993, December)

The influence of several cotton seeds dressing has been studied for the control of Aphis gossypii Glover and for the cotton damping-off mainly due to Rhizoctonia solani Kühn. Diverse seeds dressing ... [more ▼]

The influence of several cotton seeds dressing has been studied for the control of Aphis gossypii Glover and for the cotton damping-off mainly due to Rhizoctonia solani Kühn. Diverse seeds dressing techniqu"es showed the superiority of the pelletted delinted seeds compared to the dry dressing of non delinted seeds methodfor the control of those two pests. The experimental results show tnat , for the control of A. gossypii, imidachloprid has a superior residual action as well as a better efficacy than the other active ingredients. [less ▲]

Detailed reference viewed: 13 (3 ULg)
Full Text
Peer Reviewed
See detailL'enrobage des semences en tant que vecteur phytosanitaire pour une protection a long terme.
Fraselle, J.; Schiffers, Bruno ULg

in Mededelingen van de Faculteit Landbouwwetenschappen, RijksuniversiteitGent (1982), 47(2), 665-673

Detailed reference viewed: 23 (5 ULg)
Full Text
Peer Reviewed
See detailL'enrobage des semences: perspectives actuelles et futures.
Schiffers, Bruno ULg; Fraselle, J.

in Annales de Gembloux (1982), 88(3),

Detailed reference viewed: 42 (4 ULg)
Full Text
Peer Reviewed
See detailLes « enrôlés de force » dans la Wehrmacht – un symbole du passé mouvementé des Belges germanophones au XXe siècle
Brüll, Christoph ULg

in Guerres Mondiales et Conflits Contemporains (2011), 241

Au XXe siècle, l’histoire des 75000 Belges germanophones est celle d’un passé mouvementé. Devenue belge à la suite du traité de Versailles, la population, prussienne depuis 1815, des deux Kreise d’Eupen ... [more ▼]

Au XXe siècle, l’histoire des 75000 Belges germanophones est celle d’un passé mouvementé. Devenue belge à la suite du traité de Versailles, la population, prussienne depuis 1815, des deux Kreise d’Eupen (germanophone) et de Malmedy (en partie wallonne ou francophone) a vécu des conflits de loyauté résultant du nationalisme exacerbé si typique de la première moitié du siècle dernier. Le symbole de ce passé, mais aussi de ces conflits d’allégeance, ce sont les 8700 jeunes hommes recrutés par la Wehrmacht à partir du mois de novembre 1941, soit deux mois après l’octroi de la nationalité allemande à la population d’un territoire annexé de facto au Reich par un Führererlass du 18 mai 1940. Entre 3200 et 3400 d’entre eux, soit 39 %, ne reviendront pas, ils mourant au « champ d’honneur » ou dans des camps de prisonniers soviétiques. La terminologie a fait de ces soldats des Zwangssoldaten – des « enrôlés de force ». Ce terme est d’abord créé par les autorités gouvernementales bruxelloises pour les distinguer de leurs compatriotes flamands et wallons qui s’étaient portés volontaires dans l’armée allemande. Il est ensuite repris par les intéressés et les représentants de leurs associations. À travers les décennies, ce sont une connotation de victimes et le potentiel de victimisation de cette terminologie qui ont forgé l’image de ces soldats, mais aussi, à travers eux, de toute la population germanophone. Ce terme ne prend cependant pas en compte les conflits entre pro-Belges et pro-Allemands qui ont régi la vie politique et sociale de tout l’entre-deux-guerres. Il ne permet pas non plus de poser la question du comportement de ces soldats sur le front. En ce sens, il s’intègre dans une conception de l’histoire qui est née à la fin de la Seconde Guerre mondiale au moment de l’ « épuration civique », et qui, en insistant sur le caractère « belge » du territoire et de sa population, a empêché toute approche nuancée de l’histoire, voire déformé grossièrement le passé le plus récent. À cet égard, le rapport à la figure du soldat reflète le rapport au passé marqué par les deux guerres mondiales. [less ▲]

Detailed reference viewed: 280 (22 ULg)
See detailEnron, Lernout & Hauspie and Parmalat: Comparative Case-Studies
Dantinne, Michaël ULg; Kellens, Georges ULg; Demonceau, Bertrand

in Pontell, Henry; Geis, Gilbert (Eds.) International Handbook on White-Collar Crime (2006)

Detailed reference viewed: 171 (11 ULg)
Full Text
Peer Reviewed
See detailLes ensauvagés. Enfants-loups, enfant-mouton, enfants-ours, enfants seuls...
Strivay, Lucienne ULg

in Communications (2004), 76

Founding myths, miscellaneous items in the press, along with a long series of detailed witnesses reveal figures of children who grew up on the edge of the human world, in the company of beasts, sometimes ... [more ▼]

Founding myths, miscellaneous items in the press, along with a long series of detailed witnesses reveal figures of children who grew up on the edge of the human world, in the company of beasts, sometimes, in solitude and réclusion. Following the stories of feral children amounts to considering in the long term every situation where hypotheses based on theories coming from various perspectives of thought could be evaluated by comparison with man in his "natural state". Feral children seem to be inseparable from the problem of the great Nature /Culture divide and from the way in which our relationships with the non-human world are established [less ▲]

Detailed reference viewed: 37 (9 ULg)
Full Text
See detailEnsayos de germinación y análisis de viabilidad y vigor en semillas
Rodriguez Quilón, Isabel; Adam, Gilles ULg; Durán, José María

Article for general public (2008)

Detailed reference viewed: 135 (13 ULg)
Full Text
See detailEnsayos de germinacion y analisis de viabilidad y vigor en semillas
Rodriguez, Isabel; Adam, Gilles ULg; Duran, Jose Maria

Article for general public (2008)

La eleccion de la semilla constituye una de las primeras decisiones que ha de adoptar et agricultor cada ano, a la hora de decidir qué variedad debe sembrar y la calidad de semilla a utilizar. En los ... [more ▼]

La eleccion de la semilla constituye una de las primeras decisiones que ha de adoptar et agricultor cada ano, a la hora de decidir qué variedad debe sembrar y la calidad de semilla a utilizar. En los ultimos cincuenta anos se han producido importantes avances en el mundo de las semillas que han contribuido a la evolucion hacia una agricultura cada vez mas tecnificada, con una reduccion sustancial de la mano de obra, unida a un empleo cada vez mas importante de maquinaria, abonos, fitosanitarios y nuevas variedades. [less ▲]

Detailed reference viewed: 406 (9 ULg)
Full Text
Peer Reviewed
See detailEnseignant de langues : de l’homme-orchestre au chef d’orchestre. Etat des lieux d’une discipline et d’une profession en questionnement
Defays, Jean-Marc ULg

in Maurer, Marie-Thérèse (Ed.) « L’enseignant au sein du dispositif d’enseignement/ apprentissage de la langue étrangère », Actes du Ve de l’Association des Directeurs de Centres Universitaires d’Etudes Françaises pour Etrangers (ADCUEFE), Université de Bourgogne, Dijon, 27-28 mai 2011 (2014)

Detailed reference viewed: 57 (9 ULg)
See detailEnseignant et enseignement assisté par ordinateur
de Landsheere, Gilbert ULg

in Cahiers de Clio (1984), 80

Detailed reference viewed: 11 (1 ULg)