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In-Field Observation of Root Growth and Nitrogen Uptake Efficency of Winter Oilseed Rape
10 janvier 2020,
- HE Condorcet
- CARAH
,
- Article scientifique
Article scientifique
Field trials were conducted with two nitrogen applications (0 or 240 kg N ha−1) and three modern cultivars of winter oilseed rape (Brassica napus L.) previously selected from a root morphology screen at a young developmental stage. The purpose is to examine the relationship between root morphology and Nitrogen Uptake Efficiency (NUpE) and to test the predictiveness of some canopy optical indices for ...
Quel comportement de développement adoptent les rameaux de la vigne après une gelée printanière ?
29 avril 2021,
- HE Condorcet
- CARAH
,
- Article scientifique
Article scientifique
L'épisode gélif que nous avons connu en ce début avril nous rappelle combien la météo peut impacter les cultures, notamment fruitières et viticoles. Un tel phénomène s'est également produit l'année dernière, en mai, alors que les vignes se trouvaient à un stade particulièrement sensible de leur développement. À cette occasion, le Carah a observé et analysé comment les différents cépages de son ...
La dégradabilité des plastiques en culture de maïs : sous l'effet des micro-organismes et de la lumière, avec quels résultats et améliorations possibles ?
22 avril 2021,
- HE Condorcet
- CARAH
,
- Article scientifique
Article scientifique
[Disponible sur le site du sillon belge]La culture de maïs sous plastique soulève de nombreuses interrogations, notamment en matière d’environnement. Pour éclaircir cette problématique, le Carah a passé au crible différents types de plastique et a étudié plus précisément leur dégradabilité. Ces essais en laboratoire ont ensuite été complétés par une évaluation au champ, sous la houlette du Cipf. En ...
Cardiorespiratory responses during running and sport-specific exercises in handball players
mai 2009,
- HE Condorcet
,
- Article scientifique
Article scientifique
To determine whether a 4-a-side handball (HB) game is an appropriate aerobic stimulus to reach and potentially enhance maximal oxygen uptake (V˙O2max), and whether heart rate (HR) is a valid index of V˙O2 during a handball game. Nine skilled players (21.0 ± 2.9 yr) underwent a graded maximal aerobic test (GT) where V˙O2max and HR−V˙O2 relationship were determined. V˙O2, HR and blood lactate ([La]b) ...
Accuracy of Medical Oxygen Flowmeters: A Multicentric Field Study
août 2014,
- HE Condorcet
,
- Article scientifique
Article scientifique
The accuracy of 476 oxygen flowmeters was investigated using a thermal mass flowmeter in eight hospitals in France and Belgium. Different oxygen flow rates (2 to 15 l/min) were evaluated at the patient’s bed. When the sample was considered as a whole, the accuracy of delivered flow was acceptable but precision was poor. The variability of the delivered flow between devices was greater when a low ...
Effect of dietary nitrate supplementation on tolerance to supramaximal intensity intermittent exercise
29 mai 2015,
- HE Condorcet
,
- Article scientifique
Article scientifique
Dietary nitrate (NO3−) supplementation has been shown to increase exercise tolerance and improve oxidative efficiency during aerobic exercise in healthy subjects. We tested the hypothesis that a 3-day supplementation in beetroot juice (BJ) rich in NO3− would improve the tolerance to supramaximal intensity intermittent exercise consisting of 15-s exercise periods at 170% of the maximal aerobic power ...
Effect of dietary nitrate supplementation on metabolic rate during rest and exercise in human: A systematic review and a meta-analysis
16 janvier 2016,
- HE Condorcet
,
- Article scientifique
Article scientifique
Background
Recent randomized controlled trials have suggested that dietary nitrate (NO3-), found in beetroot and other vegetables, and inorganic NO3− salts decrease metabolic rate under resting and exercise conditions.
Objective
Our aim was therefore to determine from a systematic review and meta-analysis whether dietary NO3− supplementation significantly reduces metabolic rate, expressed as ...
Bilateral Strength Deficit Is Not Neural in Origin; Rather Due to Dynamometer Mechanical Configuration
18 décembre 2015,
- HE Condorcet
,
- Article scientifique
Article scientifique
During maximal contractions, the sum of forces exerted by homonymous muscles unilaterally is typically higher than the sum of forces exerted by the same muscles bilaterally. However, the underlying mechanism(s) of this phenomenon, which is known as the bilateral strength deficit, remain equivocal. One potential factor that has received minimal attention is the contribution of body adjustments to ...
EEG dynamics and neural generators of psychological flow during one tightrope performance
24 juillet 2020,
- HE Condorcet
,
- Article scientifique
Article scientifique
Psychological “flow” emerges from a goal requiring action, and a match between skills and challenge.
Using high-density electroencephalographic (EEG) recording, we quantified the neural generators characterizing psychological “flow” compared to a mindful “stress” state during a professional tightrope performance. Applying swLORETA based on self-reported mental states revealed the right superior ...
Neural generators involved in visual cue processing in children with attention-deficit/hyperactivity disorder (ADHD)
10 novembre 2020,
- HE Condorcet
,
- Article scientifique
Article scientifique
Event-related potentials (ERP) studies report alterations in the ongoing visuo-attentional processes in children with attention deficit/hyperactivity disorder (ADHD).
We hypothesized that the neural generators progressively recruited after a cue stimulus imply executive-related areas well before engagement in executive processing in children with ADHD compared to typically developed children (TDC)