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See detailPredominant effects of host plant species on Aphis gossypii aphid and Episyrphus balteatus hoverfly in a tritrophic approach
Poligui, René Noël ULg; Francis, Frédéric ULg; Haubruge, Eric ULg

Poster (2011, May 24)

The aphid Aphis gossypii Glover (Homoptera: Aphididae) is known as worldwide important pest. It causes serious injuries to crops, but is also able to feed on various cultivated and wild plants. Some ... [more ▼]

The aphid Aphis gossypii Glover (Homoptera: Aphididae) is known as worldwide important pest. It causes serious injuries to crops, but is also able to feed on various cultivated and wild plants. Some programs are developped to control this aphid. In many studies , hoverfy Episyrphus balteatus De Geer (Diptera : Syrphidae) is used as an efficient and aphid specific predator in biological control systems. In this work, we study cotton aphid choice plant discrimination, the effect of host plants on its developpment(fecondity and mortality), and the E.balteatus foraging and oviposition behavior according aphid host plants. Biologic parameters were observed using various plant combinations. E.balteatus behavioral observations were conducted using the Noldus Observer v.5.0. A.gossypii makes discriminant choice of his hosts, with better preference on Cucurbita pepo L. (Cucurbitaceae) and Capsicum annuum L. (Solanaceae). Dacryodes edulis (G. Don) H.J. Lam. (Burseraceae) and Vicia faba L. (Fabaceae) are the midle choice while Hibiscus sabdariffa L. (Malvaceae) is less chosen. A.gossypii develops easily on C.pepo, and weakly on C.anuum, H.sabdariffa,and V.faba. D. edulis induces very high mortality to A.gossypii. According to E. balteatus behavior, A. gossypii is more attractive when infesting C .pepo and V.faba, less on H. sabdariffa. While non infested , the hoverfly more attractive plant is V.faba. Our results highlited the importance of interactions between aphids and their host plants and the prey-host influence on a specific aphid predatory hoverfy. Suitable ways in correlation with this work are to investigated to complete this study and perform aphids biological control. [less ▲]

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See detailPredominant ventromedial frontopolar metabolic impairment in frontotemporal dementia
Salmon, Eric ULg; Garraux, Gaëtan ULg; Delbeuck, Xavier et al

in NeuroImage (2003), 20(1), 435-440

In a multicenter study, FDG-PET images in a population of 29 patients with frontotemporal dementia (FTD) were compared to controls with similar age from each center. A conjunction analysis led to ... [more ▼]

In a multicenter study, FDG-PET images in a population of 29 patients with frontotemporal dementia (FTD) were compared to controls with similar age from each center. A conjunction analysis led to identification of the ventromedial frontopolar cortex as the single region affected in each and every FTD patients. This precise regional metabolic impairment should be integrated with recent neuropsychological researches, such as those showing that the ventromedial frontal cortex is critically involved in decision-making processes based on personal experience, feelings of rightness or social knowledge, processes that are characteristically impaired in FTD. (C) 2003 Elsevier Inc. All rights reserved. [less ▲]

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See detailPredstavy a koncepty tretiho sektoru v Evrope
Defourny, Jacques ULg; Pestoff, Victor

in Dohnalova, Marie; Prusa, Ladislav (Eds.) Socialni ekonomika (2012)

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See detailPrééclampsie
Brichant, Jean-François ULg

Conference (2004, October 21)

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See detailLa prééclampsie - éclampsie
Brichant, Jean-François ULg

Conference (2008, September 08)

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See detailLa prééclampsie est la conséquence d'un déficit de placentation: de la biologie aux considérations cliniques
Maquoi, Erik ULg; Schaaps, Jean-Pierre ULg; Jacobs, J. L. et al

in Revue Médicale de Liège (1997), 52(7), 478-84

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See detailLa prééclampsie: de la physiopathologie et prise en charge
Brichant, Jean-François ULg

Conference (2007, March 22)

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See detailA preemption-aware on-line routing algorithm for MPLS networks
Blanchy, François; Mélon, Laurent; Leduc, Guy ULg

in Telecommunication Systems (2003), 24(2-4, OCT-DEC), 187-206

In the context of Multiprotocol Label Switching (MPLS), we look at the problem of organizing the mapping of Label Switched Paths (LSPs) in an optimal way throughout the network on the basis of a given ... [more ▼]

In the context of Multiprotocol Label Switching (MPLS), we look at the problem of organizing the mapping of Label Switched Paths (LSPs) in an optimal way throughout the network on the basis of a given objective function. This problem is highly combinatorial and makes dynamic and real-time features a difficult issue for any LSP routing scheme. For this reason, we propose a computationally efficient, though approximate, on-line scheme adapted to an incremental optimization of the network state. We also propose an integration of a computationally efficient preemption mechanism into this approximation. The efficiency of this algorithm is obtained through a very rigid but seemingly appropriate policy concerning which LSPs are appropriate for preemption. A feedback from preemption on the routing process is proposed, in order to regulate the rate of the reroutings and to tune the balance between stability and continuous reorganization in a network. [less ▲]

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See detailPreemptive cellular immunotherapy after T-cell-depleted allogeneic hematopoietic stem cell transplantation.
Baron, Frédéric ULg; Beguin, Yves ULg

in Biology of Blood & Marrow Transplantation (2002), 8(7), 351-9

GVHD is a life-threatening complication of allogeneic hematopoietic stem cell transplantation (HSCT). GVHD is due to donor lymphocytes that are cotransplanted with donor stem cells. These donor ... [more ▼]

GVHD is a life-threatening complication of allogeneic hematopoietic stem cell transplantation (HSCT). GVHD is due to donor lymphocytes that are cotransplanted with donor stem cells. These donor lymphocytes are primed by histocompatibility differences between donors and recipients and activated by a cytokine storm caused by the conditioning regimen. The most efficient method for prevention of GVHD consists of T-cell depletion (TCD) of the graft. However, TCD usually leads to an increased risk of leukemia relapse because of the loss of the graft-versus-leukemia (GVL) effect. Several groups have studied the feasibility of preemptive donor lymphocyte infusion (DLI) to lessen the impact of TCD on leukemia relapse. Preemptive DLI is given several weeks to months after the transplantation, ie, after the cytokine storm and after the patient has recovered from conditioning-regimen-related toxicities. After briefly discussing various techniques of TCD of the graft and the efficacy of DLI, this article reviews the first clinical studies evaluating a strategy of TCD of the graft followed by preemptive DLI. [less ▲]

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See detailPrefabricated composite beam-to-concrete filled tube or partially reinforced-concrete-encased column connections for severe seismic and fire loadings
Bursi, Oreste; Ferrario, Fabio; Haller, Mike et al

Report (2008)

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See detailPrefabricated Mobile Dams : with the use of Aluminum
Rigo, Philippe ULg; Dehousse, Nicolas ULg; Hadid, H. et al

in 28th International Navigation Congress (PIANC), Section I, subject 5 (1994, May)

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See detailPréface
Leclercq, Bruno ULg

in Badidike, Jean-Pierre (Ed.) Référence et rigidité des termes singuliers. Les indexicaux auto-désignatifs (2013)

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Bourgeois, Marc ULg

in Garroy, Sabine; Darte, Dominique (Eds.) L'impôt des personnes morales (2013)

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Marganne, Marie-Hélène ULg

in Ricciardetto, Antonio (Ed.) L’Anonyme de Londres (P.Lit.Lond. 165, Brit.Libr. inv. 137). Édition et traduction d’un papyrus médical grec du Ier siècle (2014)

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Folie, François ULg

in Clausius, Rudolf (Ed.) Théorie mécanique de la chaleur (1868)

François Folie wants to inform the reader about the essential principles of the mechanical theory of the heat and the new ideas which this one introduced into the science, and to familiarize him with the ... [more ▼]

François Folie wants to inform the reader about the essential principles of the mechanical theory of the heat and the new ideas which this one introduced into the science, and to familiarize him with the expressions often met in the book. [less ▲]

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Martiniello, Marco ULg

in Vahabi, Nader (Ed.) La quatrième socialisation de la diaspora iranienne. Les Iraniens de Belgique (2013)

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Denis, Benoît ULg

in Simenon, Georges (Ed.) Des phoques aux cocotiers et aux serpents à sonnette (2013)

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Defourny, Jacques ULg

in Kuan, Yu-Yuan; Chan, Kam-Tong; Lu, Wan-Pin (Eds.) et al Social Enterprises in Taiwan and Hong Kong: A Comparison (in Chinese) (2012)

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Noiret, Pierre ULg

in Nespoulet, Roland; Chiotti, Laurent; Henry-Gambier, Dominique (Eds.) Le Gravettien final de l'abri Pataud (Dordogne, France). Fouilles et études 2005-2009 (2013)

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Caprasse, Olivier ULg

in Bourgeois, Marc; Richelle, Isabelle (Eds.) En quête de fiscalité, et autres propos... Mélanges offerts à Jean-Pierre Bours (2011)

Detailed reference viewed: 6 (1 ULg)