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See detailEvaluation of the relationship between IGF-I, IGF-BP3, BMD and age in men presenting at a multiple risk detection campaign
Hanssens, L.; Tancredi, Annalisa ULg; De Ceulaer, F. et al

in Osteoporosis International (2003, November), 14(Suppl. 7), 90-91

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See detailEvaluation of the relationships between characteristics of the vertebral column of different cetaceans and their ecology: A preliminary study.
Gillet, Amandine ULg; Ninane, Catherine ULg; Remy, François ULg et al

Poster (2014, April)

Ecomorphology is the study of the relationships between functional design and the environment. One of its aims is to understand how the environmental factors can constraint the performance of an organism ... [more ▼]

Ecomorphology is the study of the relationships between functional design and the environment. One of its aims is to understand how the environmental factors can constraint the performance of an organism or act on its phenotype. Different studies have already showed in different cetaceans that the number and shape of vertebrae can reflect the stiffness of the body and consequently can impact their swimming mode. The aim of this preliminary study is to establish relationships between characteristics of the vertebral column of different cetaceans and their ecology. To this purpose, we have studied meristic and morphometric data on the vertebrae (centrum length, height and width, neural and haemal spine height and the transverse process length) of different species of mysticetes and odontocetes coming from the Aquarium-Museum of Liège and Royal Institute of Natural Sciences of Bruxelles. Preliminary results showed the distinction of three morphotypes: firstly, the active, cruising, fast swimmers with rigid body, secondly, the maneuverers, slow swimmers with flexible body and thirdly, the steady swimmers. [less ▲]

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See detailEvaluation of the residual solvent content of counterfeit tablets and capsules
Deconinck, Eric; Canfyn, Michael; Sacre, Pierre-Yves ULg et al

in Journal of Pharmaceutical & Biomedical Analysis (2013), 81-82

A group of counterfeit samples of Viagra® and Cialis® were screened for their residual solvent content and compared to the content of the genuine products. It was observed that all counterfeit samples had ... [more ▼]

A group of counterfeit samples of Viagra® and Cialis® were screened for their residual solvent content and compared to the content of the genuine products. It was observed that all counterfeit samples had higher residual solvent contents compared to the genuine products. A more diverse range of residual solvents was found as well as higher concentrations. In general these concentrations did not exceed the international imposed maximum limits. Only in a few samples the limits were exceeded. A Projection Pursuit analysis revealed clusters of samples with similar residual solvent content, possibly enabling some future perspectives in forensic research. [less ▲]

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See detailEvaluation of the Response of Shear Critical Walls Using a Three-Parameter Kinematic Theory
Mihaylov, Boyan ULg; Hannewald, Pia; Beyer, Katrin

in The 4th International fib Congress 2014 Mumbai - Proceedings (2014, February)

This paper discusses a newly developed three-parameter kinematic theory (3PKT) for shear critical walls with the help of four wall tests. The 3PKT is used to predict the pre- and post- peak response of ... [more ▼]

This paper discusses a newly developed three-parameter kinematic theory (3PKT) for shear critical walls with the help of four wall tests. The 3PKT is used to predict the pre- and post- peak response of the test units. Comparisons are performed with finite element (FE) models and plastic hinge models in combination with a shear degradation model. It is found that the latter underestimate the displacement capacity of the walls while the former do not predict well the post-peak response. The 3PKT with only three degrees of freedom captures the complete response of the walls provided that the size of the critical loading zone (CLZ) of the wall is well predicted. [less ▲]

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See detailEvaluation of the sensitivity of the terminal deoxynucleotidyl transferase-immunogold technique on Balbani ring genes.
Thiry, Marc ULg; Daneholt, B.

in Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society (1998), 46(3), 345-51

Recently, we developed the terminal deoxynucleotidyl transferase (TdT)-immunogold technique for in situ detection of DNA molecules. In this study the potential value and the limitations of the method were ... [more ▼]

Recently, we developed the terminal deoxynucleotidyl transferase (TdT)-immunogold technique for in situ detection of DNA molecules. In this study the potential value and the limitations of the method were evaluated using the giant polytene chromosomes from Chironomus tentans salivary glands. Emphasis was put on the Balbiani rings (BRs), specialized chromosomal sites with exceptionally intense synthesis of large mRNA molecules. Immunolabeling was recorded not only over the bands and interbands of the polytene chromosomes but also over the BR structures. In the BRs, gold particles were present over segments of active transcription units, each with a central chromatin axis and a number of growing RNP products attached to the axis. One third of the transversely sectioned transcription units showed labeling in the central parts, i.e., where the unfolded chromatin axis is located, whereas the growing RNP fibers remained unlabeled. The absence of labeling of the RNP fibers is not likely to be due to lack of accessibility, because anti-RNA antibodies readily decorated the RNP fibers. The nuclear sap and cytoplasm displayed no significant label. These results clearly indicate that the TdT-immunogold technique is specific for DNA and detects not only DNA in compacted chromatin but also fully extended DNA. Its ability to efficiently label a single DNA molecule demonstrates the method's very high sensitivity. [less ▲]

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See detailEvaluation of the shedding potential of textile materials
De Wael, K.; Lepot, Laurent ULg; Lunstroot, K. et al

in Science & Justice : Journal of the Forensic Science Society (2010), 50(4), 192-194

A practical method is proposed to assess the shedding potential of textile materials. The evaluation of the sheddability is based on the use of adhesive tapes and on comparison, using three different ... [more ▼]

A practical method is proposed to assess the shedding potential of textile materials. The evaluation of the sheddability is based on the use of adhesive tapes and on comparison, using three different sheddability scales for cotton, wool and fine man-made fibres. (c) 2010 Forensic Science Society. Published by Elsevier Ireland Ltd. All rights reserved. [less ▲]

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See detailEvaluation of the Simple Calculated Osteoporosis Risk Estimation (Score) in a Sample of White Women from Belgium
Ben Sedrine, Wafa ULg; Devogelaer, J. P.; Kaufman, J. M. et al

in BONE (2001), 29(4), 374-80

Identifying patients at risk of developing an osteoporosis-related fracture will continue to be a challenge. The "gold standard" for osteoporosis diagnosis is bone densitometry. However, economic issues ... [more ▼]

Identifying patients at risk of developing an osteoporosis-related fracture will continue to be a challenge. The "gold standard" for osteoporosis diagnosis is bone densitometry. However, economic issues or availability of the technology may prevent its use under a mass screening scenario. A risk assessment instrument, the "simple calculated osteoporosis risk estimation" (SCORE), has been reported to appropriately identify women likely to have low (t score < or = -2 SD) bone mineral density (BMD) and who should be referred for bone densitometry. The aim of our study is to evaluate the discriminatory performance of SCORE in a random sample of postmenopausal white women from Belgium. For this purpose, we gathered medical data on 4035 consecutive patients aged > or = 45 years, either consulting spontaneously or referred for a BMD measurement to an outpatient osteoporosis center located at the University of Liege, Belgium. BMD measurements, using dual-energy X-ray absorptiometry (DXA) technology, were taken at the hip (total and neck) and lumbar spine (L2-4). At the recommended cutoff point of 6, SCORE had a sensitivity of 91.5% to detect low BMD at any of the measured sites, a specificity of 26.5%, a positive predictive value of 52.8%, and a negative predictive value of 77.7%. According to SCORE, 18% of the patients would not be recommended for densitometry. Among these, 10.9% were misclassified as they had osteoporosis (t score < or = -2.5 SD) at one or more of the sites investigated. The negative predictive errors of SCORE, when failing to detect osteoporosis, were only 1% for the total hip, 3.2% for the femoral neck, and 8.8% for the lumbar spine. We conclude that, notwithstanding the high values of sensitivity, SCORE specificity is too low to be useful as a diagnostic tool for screening patients at high risk to later develop osteoporosis. Nevertheless, from a resource allocation perspective, this instrument can be used with relative confidence to exclude patients who do not need a BMD measurement, and would therefore provide an opportunity to realize substantial cost savings in comparison to a mass screening strategy. [less ▲]

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See detailEvaluation of the simple calculated osteoporosis risk estimation in a sample of Caucasian women from Belgium
Ben Sedrine, Wafa ULg; Devogelaer, JP; Kaufman, JM et al

in Clinical Rheumatology (2001), 20

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See detailEvaluation of the social impact of HPAI surveillance network at the community level in Vietnam.
Antoine-Moussiaux, Nicolas ULg; Delabouglise, Alexis; Binot, Aurélie et al

Conference (2012, August)

The need to set up efficient and sustainable surveillance networks is a major concern which must be continually placed at the heart of the overall issue of development. In developing countries, the ... [more ▼]

The need to set up efficient and sustainable surveillance networks is a major concern which must be continually placed at the heart of the overall issue of development. In developing countries, the political priority to reduce poverty means that it is vital to include social aspects in public decision making on health management in general. This focus on social aspects can be considered all the more important regarding surveillance as it is deeply embedded in agents’ everyday life. The flow of information about animal health involves different non-monetary costs, ensuing from stigmatization or from social pressure to withhold or disclose information. Understanding, measuring and alleviating these social costs of information is required to ensure the effectiveness and viability of surveillance. The present study considers the case of highly pathogenic avian influenza surveillance in Vietnam. It aims at establishing a protocol allowing for understanding and quantifying social costs incurred by surveillance agents at the community level. In this prospect, tools and concepts from anthropology, participative epidemiology and experimental economics were combined. More particularly, social network analysis, participatory observation, companion modeling and stated preference surveys were applied for the thorough examination of constraints and costs of health information flows. The opportunity for the scaling-up of such methodologies and for the inclusion of the so-elicited quantitative values in socio-economic evaluation of surveillance systems are discussed. [less ▲]

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See detailEvaluation of the Solitary Pulmonary Nodule by Positron Emission Tomography Imaging
BURY, Thierry ULg; Dowlati, A.; Paulus, P. et al

in European Respiratory Journal (1996), 9(3), 410-4

Current noninvasive imaging methods are not sufficiently reliable for accurate detection of malignancy in most solitary pulmonary nodules (SPNs). Positron emission tomography (PET) using 18 ... [more ▼]

Current noninvasive imaging methods are not sufficiently reliable for accurate detection of malignancy in most solitary pulmonary nodules (SPNs). Positron emission tomography (PET) using 18-fluorodeoxyglucose (FDG), showing increased FDG uptake and retention in malignant cells, has proved useful to differentiate malignant from benign tissue and could, therefore, contribute to the evaluation of the SPN. We performed a prospective study of 50 patients referred to the Pneumology Department with unclear diagnoses of SPN after conventional radiological screening. PET study was performed on each subject before an invasive procedure was proposed. Thirty three patients had a malignant nodule and 17 had a benign nodule. The mean size of malignant nodule was 3 cm (range 1.5-4.5 cm). All showed a marked increase in 18-FDG uptake. The mean size of benign nodule was 1.8 cm (range 0.5-3.5 cm). PET imaging showed the absence of 18-FDG uptake and correctly identified 15 of 17 benign nodules. There was two false-positive cases with a moderate increase in 18-FDG uptake (1 postprimary tuberculosis; and 1 anthracosilicotic nodule with nonspecific inflammation). At present, the sensitivity and specificity of the method are 100 and 88%, respectively. The positive and negative predictive values of PET imaging for SPNs are 94 and 100%, respectively. Our preliminary results demonstrate that PET-FDG imaging is a noninvasive technique, which appears highly accurate in differentiating malignant SPN from benign SPN. [less ▲]

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See detailEvaluation of the specific immune response against a recombinant keratinase of Microsporum canis
Vermout, S.; Brouta, F.; Descamps, F. et al

Conference (2003)

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See detailEvaluation of the StrepB Select agar for the detection of group B streptococci from vaginal and recto-vaginal specimens
MELIN, Pierrette ULg; HUYNEN, Pascale ULg; MEEX, Cécile ULg et al

in ESCMID (Ed.) Program and Abstracts book of the 18th ECCMID (2008, April)

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See detailEvaluation of the Strepto B ID agar for the detection of group B streptococci from vaginal and recto-vaginal specimens
MELIN, Pierrette ULg; Bonafe, S.; HAYETTE, Marie-Pierre ULg et al

in ASM (Ed.) Program and Abstracts of the 106th General Meeting of the American Society for Microbiology (2006, May)

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See detailEvaluation of the suitability of the land surface model JULES for climate impact studies in Belgian ecosystem
Van Den Hoof, Catherine; Aubinet, Marc ULg; Heinesch, Bernard ULg et al

Conference (2009, October)

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See detailThe evaluation of the surface free energy of liquids and solids in concrete technology
Courard, Luc ULg; Michel, Frédéric ULg; Martin, Marie

in Construction & Building Materials (2011), 25

This paper presents initial results from an extensive study on the calculation of the surface free energy of mineral materials. The usefulness of such evaluation is demonstrated through the technological ... [more ▼]

This paper presents initial results from an extensive study on the calculation of the surface free energy of mineral materials. The usefulness of such evaluation is demonstrated through the technological operation of casting and moulding concrete. Surface interactions will firstly act on the dispersion of particles inside the concrete mix and the viscosity of the fresh material; the specific effect of superplasticizers and Modifying Viscosity Agent is presented through the determination of surface free energy properties. The second analysis is dealing with the interactions between mineral and vegetal oils applied on the wooden or steel formwork and fresh concrete. The evaluation of contact angle and interfacial forces help to efficiently select the most appropriate material. [less ▲]

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See detailEvaluation of the thermal part of the code SAFIR by comparison with the code TASEF
Pintea, Dan; Franssen, Jean-Marc ULg

in Ivan, Marin (Ed.) Proc. 8th Int. Conf. on Steel Structures, Vol. 2 (1997)

A thorough analysis has been performed to evaluate SAFIR release 1.3 through a set of examples presented by Wyckström in the paper "An evaluation scheme of computer codes for calculating temperature in ... [more ▼]

A thorough analysis has been performed to evaluate SAFIR release 1.3 through a set of examples presented by Wyckström in the paper "An evaluation scheme of computer codes for calculating temperature in fire exposed structures - two dimensional analysis". The results of SAFIR 1.3 have been compared with the results obtained by TASEF, or to analytical solution when available. The results of SAFIR 1.3 compare well with the analytical solutions and, with few exceptions, with those of TASEF. [less ▲]

Detailed reference viewed: 100 (2 ULg)