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 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)
Full Text
See detailEvaluation of the third Action Programme. Recommendations for regulatory and scientific research
Vandenberghe, Christophe ULg; Destain, Jean-Pierre ULg; Beckers, Yves ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(SPL1), 301-306

In accordance with the Nitrates Directive, the third "Durable Nitrogen Management Plan" (PGDA) will be soon reviewed in Wallonia (Belgium). The second "Nitrate - Water" workshop took place between 28th ... [more ▼]

In accordance with the Nitrates Directive, the third "Durable Nitrogen Management Plan" (PGDA) will be soon reviewed in Wallonia (Belgium). The second "Nitrate - Water" workshop took place between 28th May and 1st June 2012. The workshop was attended by both Belgian scientists (Université catholique de Louvain - UCL, Walloon Agricultural Research Center CRA-W, Université de Liège - ULg, Gembloux Agro-Bio Tech) and French scientists (National Institute for Agricultural Research - INRA). In the light of the results of experiments presented by scientists at this workshop, modifications to the PGDA are now recommended. These concern organic and mineral nitrogen fertilization for crops and meadows; catch crops; soil nitrate-nitrogen residue limitation in autumn, at the start of the nitrate leaching period; the management of meadow ploughing and a modification of the dairy cow standard for nitrogen production. [less ▲]

Detailed reference viewed: 17 (2 ULg)
Full Text
Peer Reviewed
See detailEvaluation of the third-generation to second-generation PTH ratio on the Liaison XL (DIASORIN) as a marker for parathyroïd carcinoma
Schleck, Marie-Louise; LAURENT, Terry ULg; GADISSEUR, Romy ULg et al

in Biochimica Clinica (2013, May), 37(SS), 161

Detailed reference viewed: 30 (13 ULg)
Full Text
See detailEvaluation of the treatment of septic arthritis by arthrotomy in calves
Sartelet, Arnaud ULg; Touati, Kamal ULg

Conference (2008, July 10)

Detailed reference viewed: 75 (28 ULg)
Full Text
Peer Reviewed
See detailEvaluation of the urodynamic and hemodynamic effects of orally administered phenylpropanolamine and ephedrine in female dogs.
Carofiglio, Francesca; Hamaide, Annick ULg; Farnir, Frédéric ULg et al

in American Journal of Veterinary Research (2006), 67(4), 723-730

Detailed reference viewed: 40 (2 ULg)
Full Text
Peer Reviewed
See detailEvaluation of the use of CALUX-results for dioxins and dioxin-like PCBs analysis for quantitative human exposure assessments
Vromman, Valérie; Baert, Katleen; Vanderperren, Huig et al

in Food Control (2012), 27(2), 314-321

Detailed reference viewed: 35 (8 ULg)
Full Text
Peer Reviewed
See detailEvaluation of the use of VEGF111 for the treatment of tendon lesions.
Janssen, Lauriane ULg; Kaux, Jean-François ULg; Drion, Pierre ULg et al

Poster (2011, May 20)

Alterations of tendons are common pathologies resulting from repetitive or abnormal mechanical sollicitations. Very frequently lesions become chronic and may even lead to rupture. As there is no current ... [more ▼]

Alterations of tendons are common pathologies resulting from repetitive or abnormal mechanical sollicitations. Very frequently lesions become chronic and may even lead to rupture. As there is no current efficient treatment for curing this type of diseases, new therapeutic approaches are being tested and developed. Injection of platelet-rich plasma (PRP) seems to be a promising treatment by local release of growth factors. Among these factors, VEGF-A is known to induce positive effects on vascular functions and angiogenesis, and could be implicated in the healing process of tendons. Several isoforms of VEGF-A have been described in literature, including VEGF165 and 121. VEGF111 is encoded by exons 1-4 and 8a. The lack of exon 5 enables VEGF111 to resist to proteolytic degradation and the absence of exons 6 and 7 reduces its affinity for several macromolecules present on the cell surface and in the extracellular matrix. In vivo, it has been shown to be highly proangiogenic and diffusible. A 5mm defect was surgically performed in the Achilles tendon of 60 rats. Two hours after closure of the fascia and the skin, an injection within the wound was performed with PBS alone (n=30) or with PBS containing 100 ng of VEGF111 (n=30). 10 rats of each group were sacrificed at days 5, 15 and 30. The operated tendon was then carefully removed and collected for either immunohistochemical analyses or mechanical testing. At each time point, the section and the overall appearance of the repairing tendons were similar for PBS and VEGF111-injected tendon. As compared to controls, injection of VEGF111 seemed to promote a faster angiogenesis, although the number of samples was at this stage too low for performing reliable statistical analysis. Mechanical resistance to rupture of the repairing tendons was also measured. No difference between the two groups was observed after 5 or 15 days. By contrast, increased tensile strength was clearly evidenced in the VEGF-treated group after 30 days. These preliminary data seem to indicate a positive effect of a single VEGF111 injection for restoring the mechanical properties of tendons after their section. Additional experiments are planned for confirmation purposes and for further characterizing the model. It includes a “dose- response” analysis, the use of VEGF165 as an additional control and a study evaluating the effect of several injections. [less ▲]

Detailed reference viewed: 47 (13 ULg)
Full Text
Peer Reviewed
See detailEvaluation of the usefulness of bird feathers as a non-destructive biomonitoring tool for organic pollutants: A comparative and meta-analytical approach
Jaspers, V. L. B.; Voorspoels, S.; Covaci, Adrian et al

in Environment International (2007), 33(3), 328-337

In this study, we investigated whether bird feathers can be used as a non-destructive biomonitor for organic pollutants. We analysed the outermost tail feathers of 8 terrestrial and aquatic bird species ... [more ▼]

In this study, we investigated whether bird feathers can be used as a non-destructive biomonitor for organic pollutants. We analysed the outermost tail feathers of 8 terrestrial and aquatic bird species from Belgium (8 species, n = 108) for polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and organochlorine pesticides (OCPs). Every compound class could be quantified in one single tail feather of the birds under study (sum PCBs ranging from 5.5 to 5 10 ng/g feather, sum PBDEs from 0.33 to 53 ng/g feather, sum DDTs from 1.5 to 730 ng/g feather), except for PBDEs in feathers of the common moorhen (Gallinula chloropus). Further, we calculated Pearson correlations between concentrations of organic pollutants in feathers and concentrations in corresponding muscle or liver tissue from the birds. Correlations were found significant in half of the cases of the terrestrial species, but were found not significant for the aquatic species, with the exception of a significant correlation of sum PCBs in the common moorhen. Only for the common buzzard (Buteo buteo) (n=43) all correlations were found significant (0.32 < r < 0.77). In order to cope for low statistical power, we performed a meta-analysis on all bird species together. This led to significant correlations between levels in feathers and corresponding levels in muscle or liver for all terrestrial birds (p < 0.05 in all cases, effect size 0.59 (p,p'-DDE) to 0.71 (Sigma PCB) for levels in feather and muscle). When correlations were recalculated excluding the birds that had died due to starvation, correlation coefficients for the terrestrial birds were found even higher (effect size up to 0.83 (Sigma PCB)). These results have important implications for non-destructive and retrospective biomonitoring. Although our results suggest that exact concentrations in the body cannot be predicted using feathers, bird feathers can give a good estimate of contamination levels in a population and as such are a potential non-destructive biomonitoring tool for organic pollutants. Outermost tail feathers and muscle tissue were also examined for nitrogen (delta N-15) and carbon (delta C-13) stable isotope content in the different bird species. However, delta N-15/delta C-13 signatures in feather or muscle were not significantly correlated with the corresponding levels of organic pollutants in these tissues. Various confounding factors (such as habitat, condition, age, sex) may have masked a relationship between delta N-15 values and organic pollutant levels in the birds under study. (c) 2006 Elsevier Ltd. All rights reserved. [less ▲]

Detailed reference viewed: 127 (9 ULg)
Full Text
Peer Reviewed
See detailEvaluation of the wrist cuff oscillometric blood pressure measurement in clinical practice
Saint-Remy, Annie ULg; Moonen, Martial; Krzesinski, Jean-Marie ULg et al

in Journal of Hypertension (Supplement) (2000), 18(suppl 2), 55

Detailed reference viewed: 12 (1 ULg)
Full Text
Peer Reviewed
See detailEvaluation of therapy for lymphoma.
Jerusalem, Guy ULg; Hustinx, Roland ULg; Beguin, Yves ULg et al

in Seminars in Nuclear Medicine (2005), 35(3), 186-96

Positron emission tomography (PET) using (18)F-fluorodeoxyglucose ((18)F-FDG) is the best noninvasive imaging technique for to assess response in patients suffering from lymphoma. Early response ... [more ▼]

Positron emission tomography (PET) using (18)F-fluorodeoxyglucose ((18)F-FDG) is the best noninvasive imaging technique for to assess response in patients suffering from lymphoma. Early response evaluation ("interim PET") after one, a few cycles, or at midtreatment can predict response, progression-free survival, and overall survival. We calculated from data of 7 studies an overall sensitivity to predict treatment failure of 79%, a specificity of 92%, a positive predictive value (PPV) of 90%, a negative predictive value (NPV) of 81%, and an accuracy of 85%. Although it is not yet indicated to change patient management based on residual (18)F-FDG uptake on interim scan in chemotherapy-sensitive patients, prospective studies evaluating the role of an interim PET in patient management clearly are warranted. (18)F-FDG PET also has an important prognostic role in relapsing patients after reinduction chemotherapy before high-dose chemotherapy (HCT) followed by autologous stem cell transplantation (ASCT). However, all chemotherapy-sensitive patients remain candidates for HCT followed by ASCT, even if (18)F-FDG PET showed residual (18)F-FDG uptake. We calculated from data of 3 studies an overestimated risk of relapse in 16% of all PET-positive patients. Some patients with residual (18)F-FDG uptake will have a good outcome after HCT followed by ASCT. (18)F-FDG PET is the imaging technique of choice for end-of-treatment evaluation. However, (18)F-FDG is not specific for tumoral tissue. Active inflammatory lesions and infectious processes can be falsely interpreted as malignant residual cells. However, a negative (18)F-FDG PET cannot exclude minimal residual disease. Consequently, it is always indicated to correlate PET findings with clinical data, other imaging modalities, and/or a biopsy. We calculated, from data of 17 studies in end-of-treatment evaluation, a sensitivity of 76%, a specificity of 94%, a PPV of 82%, a NPV 92%, and an accuracy of 89%. [less ▲]

Detailed reference viewed: 28 (6 ULg)
Full Text
Peer Reviewed
See detailEvaluation of thermodynamic properties of concrete substrates and cement slurries modified with admixtures
Courard, Luc ULg

in Materials and Structures (2002), 35(247), 149-155

The study of the creation and the stability of the interface between concrete substrates and repair systems needs the knowledge of the thermodynamic properties of materials. The measurement of the surface ... [more ▼]

The study of the creation and the stability of the interface between concrete substrates and repair systems needs the knowledge of the thermodynamic properties of materials. The measurement of the surface free energies of liquids is realised by means of Wilhelmy plate method on reference liquid and repair products. In order to determine polar and dispersive components, it is necessary to measure the contact angle of these liquids and products on reference solid surfaces and on concrete, mortars and aggregates. Centrifuged solutions of repair product systems elements were prepared in order to measure surface free energies on pure liquids without solid particles in suspension. Evolution of properties versus time were also taken into account and analysed in comparison with well-known liquids and products. [less ▲]

Detailed reference viewed: 25 (1 ULg)
Peer Reviewed
See detailEvaluation of three essential oils as potential source of botanical fungicide
Kouassi, Kouadio Hugues Sosthène ULg; Bajji, M.; Zhiri, A. et al

Conference (2010)

Detailed reference viewed: 311 (12 ULg)
Full Text
Peer Reviewed
See detailEvaluation of three immunoassays for serodiagnosis of human Mycoplasma pneumoniae infection
HUYNEN, Pascale ULg; TOUSSAINT, Françoise ULg; HAYETTE, Marie-Pierre ULg et al

in Clinical Microbiology & Infection (2012, April), 18(S3), 231

Detailed reference viewed: 13 (6 ULg)
Full Text
Peer Reviewed
See detailEvaluation of three immunoassays for serodiagnosis of human Mycoplasma pneumoniae infection
HUYNEN, Pascale ULg; TOUSSAINT, Françoise ULg; HAYETTE, Marie-Pierre ULg et al

Poster (2012, April)

The aim of this study was to evaluate three commercial automated immunoassays for the serological diagnosis of M. pneumoniae infection.

Detailed reference viewed: 10 (2 ULg)
Full Text
Peer Reviewed
See detailEvaluation of three serum i-ELISA's using monoclonal antibodies and protein G as peroxidase conjugate for the diagnosis of bovine brucellosis
Saegerman, Claude ULg; De Waele, L.; Gilson, D. et al

in Veterinary Microbiology (2004), 100

Three i-ELISAs using LPS, the immunodominant component of Brucella abortus, were developed with three different conjugates: monoclonal antibodies 1C8 (anti-bovine IgG(1)) and 3H3 (mainly specific for ... [more ▼]

Three i-ELISAs using LPS, the immunodominant component of Brucella abortus, were developed with three different conjugates: monoclonal antibodies 1C8 (anti-bovine IgG(1)) and 3H3 (mainly specific for bovine IgG(2) but also reacting with IgG(1)) and protein G (reacts with both bovine IgG subclasses). Using a cut-off value of 2.5U/ml, the i-ELISA with 3H3 as conjugate had a specificity (95% CI: 98.32-99.63%) that was significantly higher than the same assay with 1C8 (95% CI: 96.08-98.26%) or PG (95% CI: 95.83-98.09%). In areas where false positive serological reactions (FPSR) were common, the specificity of the i-ELISAs decreased significantly. The specificity of the i-ELISAs increased with the age of the animals tested, irrespective of the conjugate. The specificity of the i-ELISAs and traditional tests was also examined using sera from animals infected per os with bacteria bearing LPS similar to the Brucella LPS. It appeared that Yersinia enterocolitica O:9, Xanthomonas maltophilia and Salmonella urbana infections induced FPSR both in the i-ELISAs and in the traditional tests, but the 3H3 assay was significantly less prone to produce false positive reactions than the 1C8 and PG assays. The i-ELISAs were more sensitive, allowed earlier detection, and were more persistent than the traditional serological tests both in experimentally and naturally Brucella-infected animals. Weekly i-ELISA monitoring of experimentally infected pregnant heifers (previously vaccinated or not) allowed a prediction of abortion. Furthermore, the 1C8 assay showed significantly higher titres irrespective of day post-infection and vaccination status. The accuracy of the assay could be improved by making use of additional information (e.g. animal age or conjugate) and by selecting appropriate cut-off points on the basis of the prevailing epidemiological situation. The i-ELISAs appear an appropriate choice in order to maintain an official brucellosis-free status because of their sensitivity, early detection and long persistence and, for the same reasons, seem especially valuable for the detection of latent carriers (i.e. animals classified negative by classical serological tests) among imported [less ▲]

Detailed reference viewed: 28 (6 ULg)
Full Text
Peer Reviewed
See detailEvaluation of thyroid function in obese dogs and in dogs undergoing a weight loss protocol
Daminet, Sylvie; Jeusette, Isabelle; Duchateau, L. et al

in Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine (2003), 50(4), 213-218

Obesity and weight loss have been shown to alter thyroid hormone homeostasis in humans. In dogs, obesity is the most common nutritional problem encountered and weight loss is the cornerstone of its ... [more ▼]

Obesity and weight loss have been shown to alter thyroid hormone homeostasis in humans. In dogs, obesity is the most common nutritional problem encountered and weight loss is the cornerstone of its treatment. Therefore, it is important to clarify how obesity and weight loss can affect thyroid function test results in that species. The objectives of this study were to compare thyroid function in obese dogs and in lean dogs and to explore the effects of caloric restriction and weight loss on thyroid hormone serum concentrations in obese dogs. In the first experiment, 12 healthy lean beagles and 12 obese beagles were compared. Thyroid function was evaluated by measuring serum concentrations of total thyroxine (TT4), free thyroxine (FT4), total triiodothyronine (TT3), thyrotropin (TSH), and reverse triiodothyronine (rT3) as well as a TSH stimulation test using 75 mu g IV of recombinant human TSH. In the second experiment, eight obese beagles were fed an energy-restricted diet [average 63% maintenance energy requirement (MER)] until optimal weight was obtained. Blood samples for determination of TT4, FT4, TT3, TSH and rT3, were taken at the start and then weekly during weight loss. Only TT3 and TT4 serum concentrations were significantly higher in obese dogs as compared to lean dogs. In the second experiment, weight loss resulted in a significant decrease in TT3 and TSH serum concentrations. Thus obesity and energy restriction significantly alter thyroid homeostasis in dogs, but the observed changes are unlikely to affect interpretation of thyroid function test results in clinics. [less ▲]

Detailed reference viewed: 46 (4 ULg)