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 detailDevelopment and validation of the ORACLE score to predict risk of osteoporosis
Richy, F.; Deceulaer, F.; Ethgen, Olivier ULg et al

in Mayo Clinic Proceedings (2004), 79(11), 1402-1408

OBJECTIVE: To develop and validate a composite index, the Osteoporosis Risk Assessment by Composite Linear Estimate (ORACLE), that includes risk factors and ultrasonometric outcomes to screen for ... [more ▼]

OBJECTIVE: To develop and validate a composite index, the Osteoporosis Risk Assessment by Composite Linear Estimate (ORACLE), that includes risk factors and ultrasonometric outcomes to screen for osteoporosis. SUBJECTS AND METHODS: Two cohorts of postmenopausal women aged 45 years and older, participated in the development (n = 407) and the validation (n = 202) of ORACLE. Their bone mineral density was determined by dual energy x-ray absorptiometry and quantitative ultrasonometry (QUS), and their historical and clinical risk factors were assessed (January to June 2003). Logistic regression analysis was used to select significant predictors of bone mineral density, whereas receiver operating characteristic (ROC) analysis was used to assess the discriminatory performance of ORACLE. RESULTS: The final logistic regression model retained 4 biometric or historical variables and 1 ultrasonometric outcome. The ROC areas under the curves (AUCs) for ORACLE were 84% for the prediction of osteoporosis and 78% for low bone mass. A sensitivity of 90% corresponded to a specificity of 50% for identification of women at risk of developing osteoporosis. The corresponding positive and negative predictive values were 86% and 54%, respectively, in the development cohort. In the validation cohort, the AUCs for identification of osteoporosis and low bone mass were 81% and 76% for ORACLE, 69% and 64% for QUS T score, 71% and 68% for QUS ultrasonometric bone profile index, and 76% and 75% for Osteoporosis Self-assessment Tool, respectively. ORACLE had the best discriminatory performance in identifying osteoporosis compared with the other approaches (P < .05). CONCLUSION: ORACLE exhibited the highest discriminatory properties compared with ultrasonography alone or other previously validated risk indices. It may be helpful to enhance the predictive value of QUS. [less ▲]

Detailed reference viewed: 30 (2 ULg)
Full Text
Peer Reviewed
See detailDevelopment and validation of the working memory self-assessment scale
Fresson, Megan ULg; DEMOULIN, Valentine ULg; HIERNAUX, Anne ULg et al

Poster (2013, July)

Aim. Because working memory is involved in many daily life activities, its ecological evaluation is a key dimension of the neuropsychological assessment of people with cognitive impairments. The aim of ... [more ▼]

Aim. Because working memory is involved in many daily life activities, its ecological evaluation is a key dimension of the neuropsychological assessment of people with cognitive impairments. The aim of this study was to develop and validate a 30-items self-assessment scale of working memory, the WMSS (Working Memory Self-Assessment Scale). Method. The WMSS and a comprehensive assessment battery of working memory and executive functions were administered to sixty French-speaking individuals (20 young, 20 old, 20 old-old). Results. The internal validity of the scale was strong as estimated by the Cronbach’s alpha coefficient (α = .93). Concerning the external validity, several correlations were obtained between the WMSS and the cognitive composite scores. Unlike old subjects, the lower cognitive results young and old-old subjects had, the more working memory complaints they expressed. Discussion. The WMSS shows a satisfactory internal as well as external validity since young and old-old subjects who reported more difficulties (WMSS) are those who obtained lower cognitive results. The somewhat surprising relationship between the WMSS and the cognitive tasks in the old group can be explained by an increased perception of cognitive changes and a more complex life style in old subjects with better cognitive abilities. [less ▲]

Detailed reference viewed: 102 (19 ULg)
Full Text
Peer Reviewed
See detailDevelopment by the sol–gel process of highly dispersed Ni–Cu/SiO2 xerogel catalysts for selective 1,2-dichloroethane hydrodechlorination into ethylene
Pirard, Sophie ULg; Mahy, Julien ULg; Pirard, Jean-Paul ULg et al

in Microporous and Mesoporous Materials (2015), 209

Ni–Cu/SiO2 xerogel catalysts have been synthesized by cogelation of industrial tetraethoxysilane (Dynasil) and chelates of Ni and Cu with industrial 3-(2-aminoethylamino)propyltrimethoxysilane (Dynasylan ... [more ▼]

Ni–Cu/SiO2 xerogel catalysts have been synthesized by cogelation of industrial tetraethoxysilane (Dynasil) and chelates of Ni and Cu with industrial 3-(2-aminoethylamino)propyltrimethoxysilane (Dynasylan DAMO) in industrial ethanol denatured with diethyl phthalate. Despite the use of industrial grade reagents, highly dispersed bimetallic Ni–Cu/SiO2 xerogel catalysts were obtained. These samples are composed of completely accessible Ni–Cu alloy crystallites with sizes of 1.6–3.4 nm located inside silica particles exhibiting a monodisperse microporous distribution. It appears that the bimetallic complex acts as a nucleation agent in the formation of silica particles. The combination of results obtained from the calculation of the metal ratio in catalysts, H2 chemisorption and transmission electron microscopy allowed calculating the surface composition of the nickel–copper particles in Ni–Cu/SiO2 cogelled xerogel catalysts. Values obtained indicate a very pronounced surface enrichment with copper. While 1,2-dichloroethane hydrodechlorination over pure nickel mainly produces ethane, increasing copper content in bimetallic catalysts results in an increase in ethylene selectivity. The specific consumption rate of 1,2-dichloroethane decreases when copper loading increases. The turnover frequency, that is, the number of catalytic cycle per active site (nickel atom and its surrounding copper atoms) and per second, seems to be independent of surface composition of alloy particles. [less ▲]

Detailed reference viewed: 393 (78 ULg)
Full Text
Peer Reviewed
See detailthe development care WEECARE reduces the stress in neonates
Battisti, Oreste ULg; NYAMUGABO MUNYERE NKANA, Kindja ULg; zigabe, serge et al

in Annales Africaine de Médecine (2015)

Detailed reference viewed: 41 (20 ULg)
Full Text
Peer Reviewed
See detailDevelopment Factors and Local Impacts of Agritourism: Comparison Between Slovenia and Walloon Region
Schmitz, Serge ULg; PotočnikSlavič, Irma

in Dubois, Charline (Ed.) Agritourism between embeddedness and internationalization (2012, June)

The bilateral research project between the Republic of Slovenia and Wallonie Bruxelles Internationale“Development Factors of Agritourism: Comparison Between Slovenia and Walloon Region” (L´agrotourisme ... [more ▼]

The bilateral research project between the Republic of Slovenia and Wallonie Bruxelles Internationale“Development Factors of Agritourism: Comparison Between Slovenia and Walloon Region” (L´agrotourisme, son fonctionnement et son rôle dans le développement local en Wallonie et Slovénie aujourd´hui et demain; Dejavnikirazvojaturizmanakmetiji: primerjava med Slovenijo in Valonijo; 2010-2012) was focused on agritourism in order to illustrate how sustainable development thinking can be applied when addressing the problems of the rural areas. It aimed as well to rethink agritourism development according to its embeddeness in order to enlighten the question which form of agritourism is suitable to which rural area and vice-versa. At the same time, agritourism is shaping and is being re-shaped by the internationalization of tourism market. [less ▲]

Detailed reference viewed: 83 (10 ULg)
Full Text
Peer Reviewed
See detailDevelopment in Red River Delta, Vietnam
Nguyen Thi Minh Khué, ULg; Nguyen Thi, Dien; White, Ben et al

Poster (2015)

Detailed reference viewed: 11 (1 ULg)
See detailDevelopment of Space Weather related services for real-time GPS applications
Warnant, René ULg; Bavier, Michaël; Lejeune, Sandrine et al

Conference (2005)

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detaildevelopment of 4H-1,2,4-benzothiadiazine 1,1-dioxides as putative tocolytic agents: pharmacological evaluation on diferent smooth muscle preparations
Boverie, S.; Becker, B.; Sebille, S. et al

in Fundamental & Clinical Pharmacology (2002)

Detailed reference viewed: 8 (1 ULg)
Peer Reviewed
See detailDevelopment of 4H-1,2,4-benzothiadiazine 1,1-dioxides as putative tocolytic agents: pharmacological evaluation on different smooth muscle preparations
Boverie, S.; Becker, B.; Sebille, S. et al

Poster (2002, March 02)

Detailed reference viewed: 3 (0 ULg)
Full Text
Peer Reviewed
See detailDevelopment of 4H-1,2,4-benzothiadiazine 1,1-dioxides as putative tocolytic agents: pharmacological evaluation on different smooth muscle preparations
Becker, B.; Sebille, S.; Antoine, M. H. et al

in Fundamental & Clinical Pharmacology (2002)

Detailed reference viewed: 12 (0 ULg)
Full Text
See detailDevelopment of a "pre-anthropogenic" peat standard for geochemical, paleo-environmental and archaeological investigations
Le Roux; De Vleeschouwer, F.; Cheburkin et al

Poster (2008)

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailDevelopment of a 1-step enzyme-linked immunosorbent assay for the rapid diagnosis of bovine respiratory syncytial virus in postmortem specimens.
Quinting, Birgit; Robert, Beatrice; Letellier, Carine et al

in Journal of Veterinary Diagnostic Investigation (2007), 19(3), 238-43

Bovine respiratory syncytial virus (BRSV) is associated with severe respiratory disease in cattle. BRSV infection frequently leads to the death of young infected animals. The presence of BRSV in ... [more ▼]

Bovine respiratory syncytial virus (BRSV) is associated with severe respiratory disease in cattle. BRSV infection frequently leads to the death of young infected animals. The presence of BRSV in postmortem specimens is routinely detected using indirect immunofluorescence (IIF). However, this technique requires special equipment and considerable expertise. The present paper describes the development of a 1-step ELISA for rapid (1.5 hours) detection of BRSV antigen in organ homogenates. The performance of the new 1-step ELISA was evaluated using bovine postmortem specimens (n = 108) in comparison with 3 other BRSV diagnostic techniques: indirect immunofluorescence, the Clearview respiratory syncytial virus (RSV) test, and real-time reverse transcriptase polymerase chain reaction (RT-PCR). The relative sensitivity, specificity, and the kappa coefficient of 1-step ELISA, the Clearview RSV electroimmunoassay (EIA), and IIF were calculated, using real-time RT-PCR as the reference test. The new 1-step ELISA was the most sensitive and specific of the 3 tests. Thus, the new 1-step ELISA is a reliable test for detecting BRSV antigen in organ homogenates. [less ▲]

Detailed reference viewed: 22 (2 ULg)
See detailDevelopment of a biological control method against post-harvest diseases of Citrus fruits
Lahlali, R.; Serrhini, M. N.; Jijakli, Haissam ULg

Conference (2005)

Detailed reference viewed: 18 (2 ULg)
Full Text
Peer Reviewed
See detailDevelopment of a biological control method against postharvest diseases of citrus fruits.
Lahlali, R.; Serrhini, M. N.; Jijakli, Haissam ULg

in Communications in agricultural and applied biological sciences (2005), 70(3), 47-58

Detailed reference viewed: 25 (2 ULg)
Full Text
Peer Reviewed
See detailDevelopment of a biological test to evaluate the bioavailability of iron in culture media
Leclère, V.; Beaufort, S.; Dessoy, S. et al

in Journal of Applied Microbiology (2009), (107), 1598-1605

Detailed reference viewed: 3 (0 ULg)
Full Text
Peer Reviewed
See detailDevelopment of a biomechanical model of deer antler cancellous bone based on X-ray microtomographic images
de Bien, Charlotte ULg; Mengoni, Marlène ULg; D'Otreppe, Vinciane ULg et al

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

Finite element models accurately compute the mechanical response of bone and bone-like materials when the models include their detailed microstructure. The aim of this paper is to develop and validate a ... [more ▼]

Finite element models accurately compute the mechanical response of bone and bone-like materials when the models include their detailed microstructure. The aim of this paper is to develop and validate a biomechanical model for deer antler cancellous bone tissue based on X-ray microtomographic images. In order to simulate the mechanical behavior under compressive load using a finite element model, images obtained by X-ray microtomography were exported into Metafor, which is an non-linear finite element software initially developed at University of Liège for metal forming processes. This software has recently found biomedical applications. The ultimate goal is to compare model predictions with the mechanical behavior observed experimentally using the Skyscan material testing stage under compression mode. The creation of the biomechanical model mesh from segmented μCT images, its integration into the software Metafor and the simulation of a compression test are described in this paper. [less ▲]

Detailed reference viewed: 156 (28 ULg)
Full Text
Peer Reviewed
See detailDevelopment of a biotransformation process of hydroperoxides into green leaf volatiles using sugar beet leaves
Gigot, C.; Ongena, Marc ULg; Fauconnier, Marie-Laure ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2010)

Natural green leaf volatiles (GLVs) are commonly sole AS aldehydic and alcoholic flavors; their synthesis is a great challenge for industry. Especially, the bioconversion step of fatty acid hydroperoxides ... [more ▼]

Natural green leaf volatiles (GLVs) are commonly sole AS aldehydic and alcoholic flavors; their synthesis is a great challenge for industry. Especially, the bioconversion step of fatty acid hydroperoxides into aldehydes by the hydroperoxide lyase (HL). This widely studied enzyme is present in cell membranes of green organs from superior plants. Extracted from its natural condition, HL is subject to a suicidal behavior, being irreversibly inhibited by its own substrate. Furthermore, GLVs produced are highly volatile and quickly degraded by other plant enzymes. Thence, high GLVs levels in industrial production are very difficult to obtain, but several biotechnological tools could be developed to enhance this natural synthesis level more than hundred times. This paper will describe a new method for GLVs production in bioreactor using sugar beet leaves as source of HL. One step reaction, including hydroperoxide metabolisation and GLVs extraction, is performed during a short time process. Downstream processing to dispose of natural and pure GLVs molecule will also be discussed. [less ▲]

Detailed reference viewed: 26 (2 ULg)