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See detailBacillus subtilis M4 decreases plant susceptibility towards fungal pathogens by increasing host resistance associated with differential gene expression
Ongena, MARC ULg; Duby, Franceline ULg; Jourdan, E. et al

in Applied Microbiology & Biotechnology (2005), 67(5), 692-698

Results presented in this paper describe the ability of Bacillus subtilis strain M4 to reduce disease incidence caused by Colletotrichum lagenarium and Pythium aphanidermatum on cucumber and tomato ... [more ▼]

Results presented in this paper describe the ability of Bacillus subtilis strain M4 to reduce disease incidence caused by Colletotrichum lagenarium and Pythium aphanidermatum on cucumber and tomato, respectively. Disease protection in both pathosystems was most probably due to induction of resistance in the host plant since experiments were designed in order to avoid any direct contact between the biocontrol agent and the pathogen. Pre-inoculation with strain M4 thus sensitised both plants to react more efficiently to subsequent pathogen infection. In cucumber, the use of endospores provided a disease control level similar to that obtained with vegetative cells. In contrast, a mixture of lipopeptides from the surfactin, iturin and fengycin families showed no resistance-inducing potential. Interestingly, treatment with strain M4 was also associated with significant changes in gene transcription in the host plant as revealed by cDNA-AFLP analyses. Several AFLP fragments corresponded to genes not expressed in control plants and specifically induced by the Bacillus treatment. In support to the macroscopic protective effect, this differential accumulation of mRNA also illustrates the plant reaction following perception of strain M4, and constitutes one of the very first examples of defence-associated modifications at the transcriptional level elicited by a non-pathogenic bacterium in a host plant. [less ▲]

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See detailBacillus subtilis sequencing report
Jacquemin, Sophie; Portetelle, Daniel ULg; Vandenbol, Micheline ULg

Poster (1997)

Detailed reference viewed: 8 (2 ULg)
See detailBacillus subtilis spore production in bioreactor : influence of culture method.
Meurisse, E.; Moukon, A.; Anong, J. B. et al

Poster (1994, July)

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See detailBacillus subtilis: biocontrol and growth promotion
Ongena, Marc ULg

Conference (2012)

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See detailBacillus-based biocontrol of Fusarium disease on tomato cultures in Burundi
Nihorimbere, Venant; Ongena, Marc ULg; Cawoy, Hélène ULg et al

Poster (2009, May 19)

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See detailBacillus-based biological control of plant diseases
Cawoy, Hélène ULg; Bettiol, Wagner; Fickers, Patrick et al

in Stoytcheva, Margarita (Ed.) Pesticides in the Modern World - Pesticides Use and Management (2011)

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See detailBack Analysis and optimisation method with Lagamine
Levasseur, Séverine ULg; Bouffioux, Chantal ULg

Speech (2013)

Comparison of Back Analysis and Optimization Methods to characterize materials with LAGAMINE

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See detailBack pain and renal failure
Delanaye, Pierre ULg; Bovy, Christophe ULg; de Leval, Laurence ULg et al

in Lancet (2004), 364(9449), 1992

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See detailBack to Earth - Ballads and (Bio)diversity
Peere, Isabelle ULg

in B.A.S.I.S Ballads and Songs International Studies (2004)

Introduction à une collection de 27 contributions

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See detailBack to Microsoft I and II: Tying and the Art of Secret Magic
Petit, Nicolas ULg; Neyrinck, Norman ULg

in Journal of European Competition Law & Practice (2011), 2(2), 117-121

This paper seeks to uncover an inconvenient truth. The Microsoft decisions are not tying cases. Rather, the two decisions taken by the EU Commission against Microsoft – i.e. the Windows Media Player ... [more ▼]

This paper seeks to uncover an inconvenient truth. The Microsoft decisions are not tying cases. Rather, the two decisions taken by the EU Commission against Microsoft – i.e. the Windows Media Player (“WMP”) case of 2004 and the Internet Explorer (“IE”) case of 2009 – mark departures from conventional tying analysis (I). First, they deviate from standard tying law in that in the Microsoft cases, a key component of abusive tying, namely coercion, is missing (II). Second, the Microsoft decisions share many analogies with “essential facility” cases. One may thus question to what extent the Commission has not pursued disguised refusal to supply cases (III). [less ▲]

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See detailBack to work
Stassart, Pierre M ULg; Mormont, Marc ULg; Louviaux, Mélanie

Conference (2006)

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See detailBackbone 1H, 13C, and 15N resonance assignments for lysozyme from bacteriophage lambda.
Di Paolo, Alexandre ULg; Duval, Valerie; Matagne, André ULg et al

in Biomolecular NMR assignments (2010), 4(1), 111-4

Lysozyme from lambda bacteriophage (lambda lysozyme) is an 18 kDa globular protein displaying some of the structural features common to all lysozymes; in particular, lambda lysozyme consists of two ... [more ▼]

Lysozyme from lambda bacteriophage (lambda lysozyme) is an 18 kDa globular protein displaying some of the structural features common to all lysozymes; in particular, lambda lysozyme consists of two structural domains connected by a helix, and has its catalytic residues located at the interface between these two domains. An interesting feature of lambda lysozyme, when compared to the well-characterised hen egg-white lysozyme, is its lack of disulfide bridges; this makes lambda lysozyme an interesting system for studies of protein folding. A comparison of the folding properties of lambda lysozyme and hen lysozyme will provide important insights into the role that disulfide bonds play in the refolding pathway of the latter protein. Here we report the (1)H, (13)C and (15)N backbone resonance assignments for lambda lysozyme by heteronuclear multidimensional NMR spectroscopy. These assignments provide the starting point for detailed investigation of the refolding pathway using pulse-labelling hydrogen/deuterium exchange experiments monitored by NMR. [less ▲]

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See detailBackground considerations on masonry structures for the preparation of the Belgian national annex to Eurocode 8
Degée, Hervé ULg; Plumier, André ULg

in Proceedings of the Conference "Seismic Risk - Earthquake in North-Western Europe" (2008)

This contribution summarizes considerations developed to allow a reasonable and consistent definition of the national parameters to be introduced in the Belgian national annex to chapter 9 of Eurocode 8 ... [more ▼]

This contribution summarizes considerations developed to allow a reasonable and consistent definition of the national parameters to be introduced in the Belgian national annex to chapter 9 of Eurocode 8 dealing with seismic design of masonry structures. The different aspects considered are material properties (resistance and ductility), detailing of wall-wall and wall-floor connections and rules for simple masonry buildings. The result is a set of rules consistent with the national practice and defining (i) what is allowed in Belgium for the different seismic zones, (ii) minimal requirements for simple non-engineered buildings and (iii) a procedure that can be followed to improve these rules for materials and structural systems exhibiting better properties than the minimal requirements of Eurocode 8. [less ▲]

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See detailBackground for studies on the treatment of male osteoporosis: state of the art.
Kaufman, J M; Johnell, O; Abadie, Eric ULg et al

in Annals of the Rheumatic Diseases (2000), 59(10), 765-72

Male osteoporosis represents an important, although long underestimated, public health problem. Both in men and in women aging is accompanied by continuous bone loss and by an exponential increase in the ... [more ▼]

Male osteoporosis represents an important, although long underestimated, public health problem. Both in men and in women aging is accompanied by continuous bone loss and by an exponential increase in the incidence of osteoporotic fracture, with a female to male incidence ratio of about 2 to 3 to 1 in the elderly for hip and vertebral fractures. Morbidity after osteoporotic fractures appears to be more serious and mortality more common in men than in women. To date, no single treatment has been proved to be effective and safe in published prospective studies. The present report, based on a systematic search of the literature on male osteoporosis, summarises the state of the art on the clinical consequences of male osteoporosis and its risk factors, in relation to the present state of knowledge about female osteoporosis. This constitutes the background for the design of rational clinical development strategies for therapeutic interventions in male osteoporosis. From this review of the literature it is apparent that notwithstanding the existing sex differences in pathophysiology of osteoporosis and the difference in age-specific incidence of osteoporotic fractures, there are also important similarities between osteoporosis in women and men. The higher incidence of fracture in women than in men results from quantitative differences in risk factors rather than from different risk factors. Even though there are sex differences in bone geometry, incidence of fracture seems to be similar in men and women for a same absolute areal bone mineral density. However, the lack of data on the changes in fracture rates in men resulting from pharmacological intervention, leading to changes in bone mineral density or bone turnover, remains the main limitation for extrapolation of established treatment outcomes from women to men. [less ▲]

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See detailBackground Subtraction: Experiments and Improvements for ViBe
Van Droogenbroeck, Marc ULg; Paquot, Olivier

in Change Detection Workshop (2012, June)

Motion detection plays an important role in most video based applications. One of the many possible ways to detect motion consists in background subtraction. This paper discusses experiments led for a ... [more ▼]

Motion detection plays an important role in most video based applications. One of the many possible ways to detect motion consists in background subtraction. This paper discusses experiments led for a particular background subtraction technique called ViBe. This technique models the background with a set of samples for each pixel and compares new frames, pixel by pixel, to determine if a pixel belongs to the background or to the foreground. In its original version, the scope of ViBe is limited to background modeling. In this paper, we introduce a series of modifications that alter the working of ViBe, like the inhibition of propagation around internal borders or the distinction between the updating and segmentation masks, or process the output, for example by some operations on the connected components. Experimental results obtained for video sequences provided on the workshop site validate the improvements of the proposed modifications. [less ▲]

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See detailBackground/BiResonant decomposition of the non Gaussian buffeting response
Denoël, Vincent ULg

in Proceedigs of 13th International Conference on Wind Engineering (2011)

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See detailBackward Euler method for single time step finite element simulation of the magnetization of high-temperature bulk superconductors with non linear conductivity
Lousberg, Grégory ULg

Conference (2008, May)

We consider a three dimensional (3D) finite element modeling of high temperature superconductors (HTS) submitted to a uniform magnetic field varying linearly with time. HTS are characterized by a non ... [more ▼]

We consider a three dimensional (3D) finite element modeling of high temperature superconductors (HTS) submitted to a uniform magnetic field varying linearly with time. HTS are characterized by a non linear conductivity described by a power law with the critical exponent, n. We implement an A- phi weak formulation into the opensource solver GetDP. Backward Euler method is used for the temporal resolution and is coupled to a non linear Picard iteration scheme for dealing with the non linear resistivity of HTS.We consider single- and multiple-time step methods and show that the single time step method produces an accurate result in a drastically reduced calculation time for HTS with large pinning strength (or similarly, with large values of n). The finite element formulation is validated by comparing the magnetization of a HTS tube calculated either with our finite element formulation or with other well-known techniques. The numerical method is then applied for comparing the magnetization of cylinders that are drilled by different periodic arrangements of columnar holes parallel to the cylinder axis. [less ▲]

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See detailBackyard poultry in Kabylie (Algeria): from an indigenous chicken to a local poultry breed?
Moula, Nassim ULg; Farnir, Frédéric ULg; Salhi, Abdellah et al

in Animal Genetic Resources (2012), 50

Backyard poultry is considered as a powerful tool for poverty alleviation. It is further promoted as a way of empowering women in communities where there is gender bias in poultry raising. The low-input ... [more ▼]

Backyard poultry is considered as a powerful tool for poverty alleviation. It is further promoted as a way of empowering women in communities where there is gender bias in poultry raising. The low-input systems involved are based on local breeds that are perfectly suited to their environment. However, socio-economic processes put local genetic resources under pressure, leading to the erosion of biodiversity. The present survey addresses this issue in the case of Kabylie, a mountainous coastal region of Algeria, through a survey conducted in 90 households raising poultry, a morpho-biometric description of 315 local chickens, and a performance evaluation of both growth and egg production in experimental semi-intensive conditions. The socio-economic profile of poultry smallholders in Kabylie reveals poor education and high diversification of agricultural assets and confirms gender bias in poultry keeping. The erosion of local genetic resources in chicken is found to be severe despite their cultural importance in Kabylie. From complementary surveys among experienced poultry keepers, the major original local type is postulated to consist of three varieties with black plumage (pure black, mottled and barred). The performance evaluation raised promising results, suggesting that some degree of improvement of low-input backyard systems could be pursued by exploiting the local breed. Finally, a strategy for a revival of the local breed through the support of the most involved smallholders is outlined in accordance with the information collected in the survey. [less ▲]

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See detailLes bacs à graisse : une solution aux problèmes des matières grasses pour les PME
Thonart, Philippe ULg; Destain, Jacqueline ULg; Zgoulli, S. et al

in Tribune de l'Eau (La) (1997), 586/2

Detailed reference viewed: 31 (13 ULg)