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See detailL'Expérience, l'Enjeu de Demain
Delcourt, Cécile ULg

Article for general public (2016)

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See detailStudy of Meta-Analysis Strategies for Network Inference using Information-Theoretic Approaches
Pham, Cam Ngoc ULg; Haibe-Kains; Bellot, Pau et al

in IEEE Dexa workshops 2016 (2016, September)

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See detailCircadian dynamics in measures of cortical excitation and inhibition balance
Chellappa, Sarah; Gaggioni, Giulia ULg; LY, Julien ULg et al

in Scientific Reports (2016), 6:33661

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See detailDetermination of iohexol and iothalamate in serum and urine by capillary electrophoresis.
Van Houcke, Sofie K.; Seaux, Liesbeth; Cavalier, Etienne ULg et al

in Electrophoresis (2016)

Estimation of glomerular filtration rate (eGFR) is essential to assess kidney function. Iodine containing contrast agents detection by HPLC has been proposed as a safe alternative for inulin or ... [more ▼]

Estimation of glomerular filtration rate (eGFR) is essential to assess kidney function. Iodine containing contrast agents detection by HPLC has been proposed as a safe alternative for inulin or radioactive compounds. However, HPLC is a time-consuming and labour-intensive method. The aim of this study was to develop an assay for iohexol and iothalamate using capillary electrophoresis (CE). Iohexol and iothalamate were directly analysed by CE in serum and urine, using photometric detection (246 nm). Serum peak height was proportional to iohexol and iothalamate concentrations. Detection limits for iohexol and iothalamate were 10 mg/L and 5 mg/L. Limits of quantification were 13.0 mg/L and 15.0 mg/L. Within-run CVs were 4.9% and 6.5%; between-run CVs 3.1-9.9% and 3.8-13.7%. A good correlation was observed between CE and HPLC: y = 1.1703 x + 5.017 (iohexol) and y = 0.7807 x + 11.01 (iothalamate) [y = concentration obtained by CE (mg/L), x = concentration obtained by HPLC (mg/L)]. In addition, CE allowed to determine urinary iohexol concentration. Although the detection limit for CE was higher than for HPLC, CE can still be used for eGFR determination. Advantages of this high throughput method are the absence of sample pretreatment and a minimal sample volume requirement. This article is protected by copyright. All rights reserved. [less ▲]

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See detailUse of NIR hyperspectral imaging to detect and quantify nodules on root system of associated crops
Eylenbosch, Damien ULg; Pierreux, Jérome ULg; Fernández Pierna, Juan Antonio et al

Poster (2016, September)

Winter wheat and peas cultivated in association and harvested when grains are dry show promising results in temperate areas. This association reach a good land equivalent ratio, reduce the nitrogen ... [more ▼]

Winter wheat and peas cultivated in association and harvested when grains are dry show promising results in temperate areas. This association reach a good land equivalent ratio, reduce the nitrogen fertilizer needs and obtain high quality harvest. These results are probably explained by the transfer of nitrogen from peas nodules to wheat roots. To test this hypothesis, quantification of nodules is required. Visual counting of nodules is time consuming and discrimination between the two kinds of roots is almost impossible. A new method is therefore needed. Near infrared hyperspectral imaging (NIR-HIS) was tested as a rapid method to quantify the amount of nodules and roots of each species in soil samples. [less ▲]

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See detailThe Case : Acute renal failure and refractory hyponatremia
denis, Chloé; JADOT, Virginie ULg; BOUQUEGNEAU, Antoine ULg et al

in Kidney International (2016), 90

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See detailGuide du mémoire
Grandjean, Geoffrey ULg

Learning material (2016)

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See detailBiologie cellulaire: exercices et méthodes
Thiry, Marc ULg; Rigo, Pierre ULg; Racano, Sandra

Book published by Dunod - 2ème édition (2016)

Cet ouvrage propose aux étudiants des premières années d’études supérieures une méthode progressive et conviviale pour comprendre et appliquer les concepts fondamentaux de la biologie cellulaire. À la ... [more ▼]

Cet ouvrage propose aux étudiants des premières années d’études supérieures une méthode progressive et conviviale pour comprendre et appliquer les concepts fondamentaux de la biologie cellulaire. À la suite de rappels de cours, sous forme de fiches, chaque chapitre propose des exercices de difficulté croissante pour s’évaluer : QCM, questions Vrai/Faux et exercices de synthèse. Les corrigés détaillés mettent en évidence la méthodologie. Des ressources numériqes avec des exercices d’entraînement supplémentaires complètent l’ouvrage. Cette nouvelle édition, actualisée, s'enrichit de nouveaux QCM, Vrai/Faux et exercices. [less ▲]

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See detailUsing a structural root system model for an in-depth assessment of root image analysis pipeline
Lobet, Guillaume ULg; Koevoets, Iko; Tocquin, Pierre ULg et al

in bioRxiv (2016)

Root system analysis is a complex task, often performed using fully automated image analysis pipelines. However, these pipelines are usually evaluated with a limited number of ground-truth root images ... [more ▼]

Root system analysis is a complex task, often performed using fully automated image analysis pipelines. However, these pipelines are usually evaluated with a limited number of ground-truth root images, most likely of limited size and complexity. We have used a root model, ArchiSimple to create a large and diverse library of ground-truth root system images (10.000). This library was used to evaluate the accuracy and usefulness of several image descriptors classicaly used in root image analysis pipelines. Our analysis highlighted that the accuracy of the different metrics is strongly linked to the type of root system analyzed (e.g. dicot or monocot) as well as their size and complexity. Metrics that have been shown to be accurate for small dicot root systems might fail for large dicots root systems or small monocot root systems. Our study also demonstrated that the usefulness of the different metrics when trying to discriminate genotypes or experimental conditions may vary. Overall, our analysis is a call to caution when automatically analyzing root images. If a thorough calibration is not performed on the dataset of interest, unexpected errors might arise, especially for large and complex root images. To facilitate such calibration, both the image library and the different codes used in the study have been made available to the community. [less ▲]

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See detailPresentation of germplasm Health Unit-Gembloux
Massart, Sébastien ULg

Conference (2016, September)

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See detailIT formulae for gamma target: mutual information and relative entropy
Arras, Benjamin ULg; Swan, Yvik ULg

E-print/Working paper (2016)

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See detailNumérique et diversité culturelle
Vlassis, Antonios ULg

Speech/Talk (2016)

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See detailEpidemiology and Molecular Variability of little cherry virus in Belgium
Tahzima, Rachid; Peusens, Gertie; Belïen, Tim et al

Conference (2016, September)

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See detailThe cardiovascular impact of intense eccentric isokinetic exercise versus aerobic treadmill running
LE GOFF, Caroline ULg; Kaux, Jean-François ULg; LAURENT, Terry ULg et al

in Isokinetics & Exercise Science (2016), 24(3), 201-208

BACKGROUND: Regular physical activity is an important health factor, but intense physical stress can increase the risk of heart disease. OBJECTIVE: Our aim was to determine the potential cardiac ... [more ▼]

BACKGROUND: Regular physical activity is an important health factor, but intense physical stress can increase the risk of heart disease. OBJECTIVE: Our aim was to determine the potential cardiac repercussions of, and the oxidative stress resulting from a maximal eccentric isokinetic exercise and a 1-hour treadmill run at 75% ˙V O2 max (maximal exercise done 6 weeks before). METHODS: Twelve young sedentary healthy subjects randomly performed two tests separated by 6 weeks: 1) 3 sets of 30 maximal eccentric isokinetic contractions of the quadriceps; 2) a 1-hour running on treadmill at 75% ˙V O2 max. We drew blood samples just before each exercise (T1), and just after (T2), 3 hours after (T3), and 24 hours after (T4) the end of each exercise to measure cardiac and oxidative stress biomarkers. RESULTS: In the running group, we observed significant differences for myoglobin (T3: 145 ± 80 μg/L), creatinine kinase (T4: 593 ± 350 mg/L), oxidized glutathione (T2: 22 ± 15.6 μmol/L), and highly sensitive cardiac troponin T, (T3: 0.051 ± 0.038 ng/mL). In the isokinetic group, we observed significant differences for myoglobin (T3:1419 ± 2533 mg/L), creatine kinase (3303 ± 7159 mg/L), and oxidized glutathione (T4:24 ± 14 μmol/L). Between isokinetic exercise and running, we observed significant differences for uric acid (p < 0.05, running > eccentric), myoglobin (p < 0.05, ditto), NT-proBNP (p < 0.05, ditto), hsTnT (p < 0.01, ditto), and oxidized glutathione (p < 0.05). CONCLUSIONS: As cardiac biomarkers appear practically unmodified after the isokinetic exercise, despite the considerable oxidative stress, we suggest that the application of intense maximal eccentric isokinetic exercise, when indicated, should be safe for most patients including those whose cardiac status is unknown. On the other hand, the increase in cardiac biomarkers observed after running, could reflect leakage of these biomarkers from the cytosolic pool of cardiac cells, linked to membrane damage, rather than the result of a major injury and hence running is supposed to be a safe practice. However, since sudden death during running has been previously described, assesment of the cardiac biomarkers and a follow-up by a sport doctor is important especially if there is a cardiac family history. [less ▲]

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See detailApproche stratégique de formation du personnel local au sein des ONG internationales dans un contexte incertain : cas du Burundi
Hakizumukama, Alexis ULg

in Actes des Rencontres Internationales sur la Diversité (2016, September)

The human resources management issues is a major challenge for the current and future international organizations, especially those of the non merchant sector, as the environmental context in which they ... [more ▼]

The human resources management issues is a major challenge for the current and future international organizations, especially those of the non merchant sector, as the environmental context in which they operate is changing more and more quickly. Thus, beyond the mobilization and the gradual professionalization of volunteers to adapt their contribution to the missions of NGOs, these organizations are also experiencing a real need for personnel able to adapt without too much difficulty, the complexity of the local context whose evolution often proves unpredictable. But this labor, multiple and high skills, is often scarce on the local labor market. This finding essentially explains the presence of expatriates who work daily alongside local employees who may be employees and volunteers, and whose management requires a sufficiently coherent strategy with organizational goals and interests of these stakeholders. HRM strategy implementation within the subsidiaries shall submit their leaders to multiple challenges brought by a set of actors focused on different and even divergent interests. The model and HRM practices in any organization, reflect the dominant HRM strategy. During our research, we pay special attention to the evolution of HRM models (Pichault and Nizet, 2013) and strategy implemented in the training of local personnel by subsidiaries studied by relying on the theory of social regulation (Reynaud, 1997, 1999). The conclusions of our work indicate that the development of HRM strategy following a joint regulatory process appears best suited to international NGOs working in uncertain environment. [less ▲]

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See detailLa standardisation des dosages de cystatine C améliore l'estimation du DFG au stade 3: une étude multicentrique conduite par la société française de biologie clinique (SFBC)
Pieroni, L; Bargnoux, A.S.; DELANAYE, Pierre ULg et al

in Néphrologie & Thérapeutique (2016, September), 12(5), 335-336

Detailed reference viewed: 19 (1 ULg)