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See detailCharacterisation of bacteriocins from lactic acid bacteria
Dortu, C.; Franz, C.; Kostinek, M. et al

Poster (2006, September)

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See detailCharacterisation of bio-insecticide proteins in industrial residues from pea seeds (Pisum sativum L.)
Cuertero Diaz, Gaetan; Colinet, Frederic; Portetelle, Daniel ULg et al

in Abstract book (2006)

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See detailCharacterisation of camel breeding practices in the Ansongo Region, Mali
Traoré, Bakary ULg; Moula, Nassim ULg; Touré, Abdoulaye ULg et al

in Tropical Animal Health and Production (2014), 46

Despite its importance in Mali’s economy, camel breeding in the country remains poorly documented, impeding effective policy-making in this regard. This study consisted in a 3-month survey and aimed at ... [more ▼]

Despite its importance in Mali’s economy, camel breeding in the country remains poorly documented, impeding effective policy-making in this regard. This study consisted in a 3-month survey and aimed at characterising camel breeding systems in Ansongo, in the region of Gao, Mali. It highlights the diversity of strategies adopted by breeders and their evolutions. Supplementary feeding and veterinary care were seldom practised. In zones close to the Niger River, cattle were substituted to camels. Transhumance routes also are modified but mobility keeps its vital role in the breeding system. Important differences within the study region in the classification of camel breeds have been reported that will influence the implementation of a collective action for animal genetic improvement. The improvement goals should take the actual management, including mobility and the mixed nature of the herds into account. [less ▲]

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See detailCharacterisation of cyclicity and relative sea-level fluctuations using magnetic susceptibility, Late Devonian (Frasnian) Hull platform, Canning Basin, Australia.
Da Silva, Anne-Christine ULg; George; Chow et al

in Whalen; Osadetz; Richards (Eds.) et al IGCP-580/596, Geophysical and Geochemical techniques : a window on the Paleozoic world, Abstract book (2013)

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See detailCharacterisation of different inulin samples by DSC - Influence of polymerisation degree on melting temperature
Blecker, Christophe ULg; Chevalier, J. P.; Fougnies, C. et al

in Journal of Thermal Analysis & Calorimetry (2003), 71(1), 215-224

Melting behaviour of powder inulin has been studied by differential scanning calorimetry. DSC curves show two endothermic peaks, relative to water elimination and to inulin melting, respectively. The ... [more ▼]

Melting behaviour of powder inulin has been studied by differential scanning calorimetry. DSC curves show two endothermic peaks, relative to water elimination and to inulin melting, respectively. The second peak is dependent on inulin type and a shift to a higher temperature is observed with increasing average polymerisation degree (DP) of the sample. For similar crystallinity index, linear relations have been underlined and so predicting inulin mean DP can be done by DSC analysis. The study shows that a relatively high heating rate (25degreesC min(-1)) can be used and brings a supplementary interest by an important reduction of analysis time. [less ▲]

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See detailCharacterisation of disks around YSOs with GENIE
Kaltenegger, Lisa; Absil, Olivier ULg; Eiroa, Carlos et al

in Fridlund, Malcolm; Henning, Thomas (Eds.) Towards Other Earths: DARWIN/TPF and the Search for Extrasolar Terrestrial Planets (2003, October 01)

Recent interferometric observations show that the interfered near-IR size of the circumstellar material around Young Stellar Object (YSO) are larger than those expected from accretion disk models. There ... [more ▼]

Recent interferometric observations show that the interfered near-IR size of the circumstellar material around Young Stellar Object (YSO) are larger than those expected from accretion disk models. There are currently different models that account for the excess IR emission of Young Stellar Objects (YSO). At the same time, the answers to many questions on the evolutionary status and the origin of the activity and variability depend critically on the relative importance of circumstellar distribution of material in disks or envelopes at different spatial scales. Operating at mid-infrared wavelengths, the Ground-based European Nulling Interferometer Experiment (GENIE) will be particularly sensitive to warm circumstellar dust and will thus provide the opportunity to characterize dust disks around YSOs. Observations with GENIE will enable us to investigate the properties of the circumstellar dust, which are responsible for the excess near-infrared fluxes. The nulling of the central star will bring out the disk in much more detail and hence put stronger constraints on these models. [less ▲]

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See detailCharacterisation of fengycin homologues produced by B. amyloliquefaciens (ET) strain isolated from a salt lake (Eastern Algeria)
Ait Kaki, Asma ULg; Noreddine, K.C.; Kara Ali, M. et al

Poster (2013, November 15)

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See detailCharacterisation of fissured aquifers in the semi-arid region of the mid-Atlas plateau (Oulmès, Morocco)
Orban, Philippe ULg; Ruthy, Ingrid ULg; Elbatloussi, D. et al

in GIRE3D: International Congress on Integrated Water Resources management and Challenges of the Sustainable Development (2006)

The Oulmès plateau (mid-Atlas in Morocco) is known for its groundwater resources in this semi-arid region. In the studied zone (approximately 80 km2), the mineral water of ‘Sidi Ali’ is exploited as well ... [more ▼]

The Oulmès plateau (mid-Atlas in Morocco) is known for its groundwater resources in this semi-arid region. In the studied zone (approximately 80 km2), the mineral water of ‘Sidi Ali’ is exploited as well as the naturally semi-sparkling ‘mineral water of Oulmès’ which are main mineral waters marketed in Morocco. Their sources are located at less than four kilometers from each other. In the same time, the drinking water supply to the local rural populations is far from being sufficient, and even in some places non-existent. In addition the plateau is also the place where many fruit-bearing cultures have been undertaken for a few years. Irrigation and the use of pesticide and herbicide compounds as well as fertilizers could constitute threats for the groundwater quantity and quality and unpleasant consequences are expected for all dependent groundwater end-users. Thus, in this semi-arid zone, an acute problem of sustainable development arises in terms of groundwater quantity and quality. An extended study has involved data collection, measurement campaigns (piezometric levels, sampling & analysis of groundwater), shallow geophysical prospecting, pumping tests, building of a data base, estimation of the recharge spatial distribution and hydrogeological mapping. On the basis of this study, a better understanding is possible about the state and the particular hydrodynamic behaviour of groundwater in the fissured hard-rocks of this plateau. Results are expressed in maps providing explicit and useful information allowing future decisions which can be taken for the welfare of everyone and particularly for the local populations. [less ▲]

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See detailCharacterisation of ionospheric small-scale structures over mid-latitudes in Europe
Warnant, René ULg; Lejeune, Sandrine

in Proceedings of the International Civil Aviation Organization Meeting (2006, October)

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See detailCharacterisation of KLUA-9, a beta-lactamase from extended-spectrum cephalosporin-susceptible Kluyvera ascorbata, and genetic organisation of bla(KLUA-9)
Rodriguez, M. M.; Power, Pablo ULg; Bauvois, C. et al

in International Journal of Antimicrobial Agents (2007), 29(3), 332-337

This study characterised the genetic environment of the chromosomally encoded blaKLUA-9 gene from a clinical Kluyvera ascorbata isolate and performed a kinetic characterisation of KLUA-9. Purified KLUA-9 ... [more ▼]

This study characterised the genetic environment of the chromosomally encoded blaKLUA-9 gene from a clinical Kluyvera ascorbata isolate and performed a kinetic characterisation of KLUA-9. Purified KLUA-9 showed the highest catalytic efficacies towards benzylpenicillin, ampicillin, piperacillin, first-generation cephalosporins, cefuroxime and cefoperazone; like other 'cefotaximases', it showed a much higher rate of hydrolysis of cefotaxime than ceftazidime, whilst dicloxacillin, cefoxitin and imipenem behaved as poor substrates. A 9 kb insert from K. ascorbata was cloned (Escherichia coli KK68C1) and sequenced. blaKLUA-9 and its 266 bp upstream flanking region (almost identical to the integron-associated bla(CTX-M-2)) are preceded by an aspat variant, a ypdABC-like operon and two open reading frames with unknown functions. Unlike IS CRI -associated bla(CTX-M-2) genes, we failed to detect the putative orf513 recombination sites. Instead, we were able to localise the 5 bp target sites for insertion of ISEcp1B, suggesting that this element could be responsible for future (or still undetected) mobilisation of blaKLUA-9 to more efficiently transferred elements. (c) 2006 Elsevier B.V and the International Society of Chemotherapy. All rights reserved. [less ▲]

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See detailCharacterisation of low, medium and high responders following FSH stimulation prior to ultrasound-guided transvaginal oocyte retrieval in cows
De Roover, R.; Bols, P. E. J.; Genicot, G. et al

in Theriogenology (2005), 63

In human IVF, the concept of 'low responders' is well known and generally defined as women with poor-response to gonadotrophin stimulation in a previous induction cycle. The objective of this ... [more ▼]

In human IVF, the concept of 'low responders' is well known and generally defined as women with poor-response to gonadotrophin stimulation in a previous induction cycle. The objective of this retrospective study is to describe and characterise the concepts of 'low-, medium-, and high-response' and 'low, medium, and high responders' in bovine-assisted reproduction by analysing the OPU-IVF results obtained following 665 gonadotrophin-stimulated sessions conducted in 112 animals, nearly all of which were previously unsuccessful in traditional multiple ovulation and embryo transfer (MOET) programs. They were submitted to OPU and IVP between 1999 and 2003. In reference to these 665 OPU sessions, categories of response were defined based on the overall mean+/-S.D. follicles aspirated and COC obtained i.e., for follicles 14.7+/-9.8 and for COCs 11.7+/-8.1. So arbitrary cut-off values to define the categories of sessions were for follicles 5 and 25, and for COC 4 and 20. The three categories for follicles punctured in one session were therefore follicle low-response (FLR)<or=5 follicles, follicle medium-response (FMR) 6-24 follicles or follicle high-response (FHR)>or=25 follicles and for COCs recovered in one session COC low-response (CLR)<or=4 COC, COC medium-response (CMR) 5-19 COC or COC high-response (CHR)>or=20 COC. In addition, four categories of animals were also defined: (1) a low responder animal (LRA) had at least one OPU session in which FLR and CLR were observed (genuine low-response, see Section ); these animals did not have any high-response sessions, (2) a medium responder animal (MeRA) had only medium-responses, (3) a high responder animal (HRA) had at least one OPU session in which FHR and CHR were observed; these animals did not have any low-response sessions, and (4) mixed responder animals (MiRA) had both low and high-responses. Finally, we distinguished biological (animals) and technical (recovery rate and ultrasound resolution) causes of response differences. In 'low, high, medium and mixed reponders,' different results were obtained (p<0.05): mean follicle numbers (8.8+/-4.8a, 22.4+/-10.5c, 13.2+/-5.2b,15.1+/-10.2d), COC numbers (6.3+/-3.9a, 18.5+/-8.2c, 10.4+/-4b, 12.0+/-8.3d), embryo numbers (1.8+/-2.1a, 5.6+/-4.9c, 2.5+/-2.7b, 3.5+/-3.8d) and also for recovery rate (72%a, 83%b,79%, 79%) and percentage embryo development (29%, 30%a, 24%b, 29%). In conclusion, the results of this study demonstrate that variability in OPU results has technical (ultrasound resolution and recovery rate) as well as biological (animal) aspects. Selection of animals with extreme (high or low) follicle and COC production results allows us to distinguish three populations: 'low, medium, and high responders' to FSH stimulation. [less ▲]

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See detailCharacterisation of macadamia nuts using X-ray microtomography
Plougonven, Erwan ULg; Srichamnong, Warangkana; Srzednicki, George et al

in Micro-CT User Meeting Abstract Book (2012, April 05)

Macadamia nuts are among the most nutritious and highest in monounsaturated oil content among edible nuts1. They are widely grown in Australia (46 % of total production), United States of America ... [more ▼]

Macadamia nuts are among the most nutritious and highest in monounsaturated oil content among edible nuts1. They are widely grown in Australia (46 % of total production), United States of America, especially in Hawaii, South Africa and Guatemala2. In practice, there are several steps involved in macadamia processing, including sorting and grading, drying, cracking, roasting, packaging and storage. Drying is a very crucial step as it needs to preserve macadamia quality as well as enhance storage stability through the reduction of water activity. It is obvious that physical properties of the nut contribute to its drying characteristics, and hence its storage stability. Accurate measures such as kernel volume ratio or shell density could help for improving drying efficiency. We present a methodology to investigate structural differences between varieties of macadamia nuts in order to understand the factors involved in storage stability. Fresh nuts-in-shell are scanned by X-ray microtomography, and the different parts of the nuts (shell, kernel, tracheids) are segmented by a set of classical 3D image operators. After image segmentation, volumes are determined, and additional weighing of the nuts allows density measurements. These quantities are plotted for several nuts from each variety. [less ▲]

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See detailCharacterisation of meso-and micro-scale morphological and mechanical properties of surface modified 3D Ti6Al4V open porous structures
Pyka, Grzegorz; Kerckhofs, Greet ULg; Van Bael, Simon et al

in Proceedings of MetFoam 2011 (2011)

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See detailCharacterisation of Phosphate Accumulating Organisms and Techniques for Polyphosphate Detection: A Review
Tarayre, Cédric ULg; Nguyen, Huu-Thanh; Brognaux, Alison ULg et al

in Sensors (2016), 16(797), 1-14

Phosphate minerals have long been used for the production of phosphorus-based chemicals used in many economic sectors. However, these resources are not renewable and the natural phosphate stocks are ... [more ▼]

Phosphate minerals have long been used for the production of phosphorus-based chemicals used in many economic sectors. However, these resources are not renewable and the natural phosphate stocks are decreasing. In this context, the research of new phosphate sources has become necessary. Many types of wastes contain non-negligible phosphate concentrations, such as wastewater. In wastewater treatment plants, phosphorus is eliminated by physicochemical and/or biological techniques. In this latter case, a specific microbiota, phosphate accumulating organisms (PAOs), accumulates phosphate as polyphosphate. This molecule can be considered as an alternative phosphate source, and is directly extracted from wastewater generated by human activities. This review focuses on the techniques which can be applied to enrich and try to isolate these PAOs, and to detect the presence of polyphosphate in microbial cells. [less ▲]

Detailed reference viewed: 35 (3 ULg)