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See detailDevelopment and validation of nursing resource weights for the Belgian Nursing Minimum Dataset in general hospitals: a Delphi questionnaire survey approach.
SERMEUS, Walter; GILLET, Pierre ULg; GILLAIN, Daniel ULg et al

in International Journal of Nursing Studies (2009), 46(2), 256-67

BACKGROUND: Internationally, nursing is not well represented in hospital financing systems. In Belgium a nursing weight system exists to adjust budget allocation for differences in nurse staffing ... [more ▼]

BACKGROUND: Internationally, nursing is not well represented in hospital financing systems. In Belgium a nursing weight system exists to adjust budget allocation for differences in nurse staffing requirements, but there is a need for revision. Arguments include the availability of a nursing minimum dataset and the adverse consequences of the current historically based nursing weight system. OBJECTIVES: The development and validation of nursing resource weights for the revised Belgium nursing minimum dataset (NMDS). DESIGN: Two independent cross sectional Delphi-surveys. SETTING AND PARTICIPANTS: A convenience sample of 222 head nurses from 69 Belgian hospitals participated in the cross sectional survey methods. To assess validity 112 patient case records from 61 nursing wards of 35 Belgian general hospitals representing general, surgical, pediatric, geriatric and intensive care were selected. METHODS: Nursing resource weights were constructed based on Delphi survey results by NMDSII intervention. The patient case Delphi survey results were used as the primary source for validation. A series of additional validation measures were calculated, based on the different patient classification systems. Finally, three validated nursing resource weighting systems were compared to the constructed NMDSII weighting system: the use of 'Closon', 'Ghent' and WIN weights. RESULTS: A coherent set of nursing resource weights was developed. The comparison of nurse resource weights, based on the survey per NMDS intervention versus the survey on patient cases, yielded high correlations: r=0.74 to r=0.97 (p<0.01) between three case rating questions, as an indication of reliability in terms of internal consistency, and r=0.90 (p<0.01) between summed intervention weights and patient case weights, as an indication of criterion validity in terms of concurrent validity. Other concurrent validity measures based on summed intervention weights versus patient classification dependency weights showed a correlation ranging from r=0.14 to r=0.74. The correlation of summed intervention weights with the Closon, Ghent and WIN weights ranged from r=0.93 to r=0.96 (p<0.01), as a third indication of concurrent validity. CONCLUSIONS: A system of valid nursing resource weights has been developed. The system should be further validated within an international context. [less ▲]

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See detailDevelopment and validation of situational judgment tests for evaluating Organizational Citizenship Behavior and Contextual Performance Behavior in a professional context : methodological issues.
Lothe, Benoit ULg; Hansez, Isabelle ULg

Conference (2011, June 22)

Strategic Human Resource Management typically raises appraisal issues (Analoui, 2007; Jackson, Schuler & Werner, 2009 ; Teo & Crawford, 2005) mostly related to the HRM relationship with organizational ... [more ▼]

Strategic Human Resource Management typically raises appraisal issues (Analoui, 2007; Jackson, Schuler & Werner, 2009 ; Teo & Crawford, 2005) mostly related to the HRM relationship with organizational performance (Bowen & Ostroff, 2004 ; Cascio, 1996 ; Wright, Gardner, Moynihan & Allen, 2005). Hence workforce assessment remains a key success factor for many organizations. Thus this paper takes place in the early beginning of a PhD Thesis which aims to the development and validation of an assessment test of Organizational Citizenship Behavior (OCB) and Contextual Performance (CP) in a professional selection context. The managerial concept of OCB refers to “individual behavior that is discretionary, not directly or explicitly recognized by the formal reward system, and in the aggregate promotes the efficient and effective functioning of the organization” (Organ, Podsakoff & MacKenzie, 2006, p. 3). CP is a closely related construct, distinct of task performance, that encompasses behaviors supporting the psychological and social context in which task activities are performed (Stone-Romero, Alvarez, & Thompson, 2009). If these two frameworks look much alike, they contrast on several points: conceptual dimensions, discretional characteristics of behavior, etc. Therefore, it seems interesting to apprehend both commonly. Situational Judgment Tests (SJTs) show a good validity concerning prediction of job performance in employment settings (Lievens, Peeters, Schollaert, 2008 ; Whetzel & McDaniel, 2009). Furthermore, they are a multidimentional measurement method suited to assess different construct like job knowlege and skills, applied social skills, and some basic personality tendencies (Christian, Edwards, & Bradley, 2010). Taking into account its characteristics, SJTs seem to be an appropriate method to enable OCB & CP evaluation. This communication pursues three goals. The first is a theoretical issue: we need a straightforward vision of OCB & CP concepts. Accordingly, after a consistent review on the vast amount of work that have been written on these two concepts, we have to specify what we seek to appraise and make the inventory of existing measurement tools related to these focus. We have already worked out a structured methodology to develop and validate SJTs in selection and career management context (Lothe, Hansez & Bertrand, Submitted). So the second issue is a methodological one. How to improve and/or to adapt this methodology in order to create a new SJT measuring OCB & CP ? Thirdly, some research related issues conclude this paper. Through this PhD project, we should be able to examine several main issues that will shape the thesis. Are SJTs being able to provide a valid assessment of OCB & CP in a personnel selection context ? Does the discretionary nature of one behavior impact the quality of its measurement ? What is the effect of response instructions on OCB/CP situational judgment test performance ? Each issue will be illustrated and discussed in connection with the development and validation opportunities and constraints. [less ▲]

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See detailDevelopment and validation of stable reference materials for food microbiology using Bacillus cereus and Clostridium perfringens spores
Abdelmassih, Marleen; Planchon, Viviane; Anceau, Christine ULg et al

in Journal of Applied Microbiology (2011)

To develop a new type of microbiological Reference Materials (RMs), displaying long-term stability at room temperature. The purpose was to produce and validate two batches of RMs for the enumeration of ... [more ▼]

To develop a new type of microbiological Reference Materials (RMs), displaying long-term stability at room temperature. The purpose was to produce and validate two batches of RMs for the enumeration of Bacillus cereus and Clostridium perfringens. Methods and Results: The RMs were based on spores of B. cereus and Cl. perfringens, adsorbed on calcium carbonate pellets. Two batches of 1000 units were manufactured and validated in compliance with ISO guide 35. After verification of their homogeneity, the stability of the ‘RM-B. cereus’ and ‘RMCl. perfringens’ batches was proven during at least 36 and 9 months, respectively, at room temperature. The validation study was completed by international collaborative trial involving 12 laboratories, allowing the validation of the assigned values. Conclusions: The methodology developed in this work enabled to produce easy-to-handle and cost-effective RMs, displaying an unprecedented stability at room temperature, a good homogeneity and a precise and validated assigned value. Significance and Impact of the Study: This study revealed new paths for the development of stable microbiological RMs. Overcoming the intrinsic instability of the living cells makes it possible to produce valuable tools for the quality assurance of microbiology laboratories. Jou [less ▲]

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See detailDevelopment and validation of the French version of a tool assessing patient's expectations in lower limb osteoarthritis
NEUPREZ, Audrey ULg; Delcour, JP; Fatemi, F et al

in Journal of Orthopaedics (in press)

Detailed reference viewed: 47 (27 ULg)
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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 ▲]

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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 ▲]

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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 (in press)

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 ▲]

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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 ▲]

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See detailDevelopment of Space Weather related services for real-time GPS applications
Warnant, René ULg; Bavier, Michaël; Lejeune, Sandrine et al

Conference (2005)

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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: 7 (1 ULg)
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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)

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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)

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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)

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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 ▲]

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See detailDevelopment of a biological control method against post-harvest diseases of Citrus fruits
Lahlali, R.; Serrhini, M. N.; Jijakli, Haissam ULg

Conference (2005)

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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: 21 (2 ULg)
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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

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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: 144 (24 ULg)