Showing papers by "Université Nantes Angers Le Mans published in 2020"

Active exopolysaccharides based edible coatings enriched with red seaweed (Gracilaria gracilis) extract to improve shrimp preservation during refrigerated storage

Abstract: Active edible coatings from microalgal exopolysaccharides (EPS) enriched with different concentrations of red seaweed extract (RSE) (0.5, 1 and 1.5% (w/v)) were developed and their effects on shrimp quality with refrigerated storage (4 ± 1 °C) were studied over a period of 8 days. Untreated and treated shrimp were regularly evaluated bacteriologically (total viable bacteria, psychrotrophic bacteria and Enterobacteriaceae counts), chemically (pH, TVB-N, TMA-N, PV, TBARS), texturally and sensorially. The coating of a mixture of EPS and RSE, significantly reduced (p

A biofeedback-enhanced therapeutic exercise video game intervention for young people with cerebral palsy: A randomized single-case experimental design feasibility study

Abstract: Importance/BackgroundMovement-controlled video games have potential to promote home-based practice of therapy activities The success of therapy gaming interventions depends on the quality of the technology used and the presence of effective support structuresAimThis study assesses the feasibility of a novel intervention that combines a co-created gaming technology integrating evidence-based biofeedback and solution-focused coaching (SFC) strategies to support therapy engagement and efficacy at homeMethodsFollowing feasibility and single-case reporting standards (CONSORT and SCRIBE), this was a non-blind, randomized, multiple-baseline, AB, design Nineteen (19) young people with cerebral palsy (8–18 years old) completed the 4-week home-based intervention in France and CanadaParticipant motivations, personalized practice goals, and relevance of the intervention to daily activities were discussed in a Solution Focused Coaching-style conversation pre-, post-intervention and during weekly check-ins Participants controlled a video game by completing therapeutic gestures (wrist extension, pinching) detected via electromyography and inertial sensors on the forearm (Myo Armband and custom software)Process feasibility success criteria for recruitment response, completion and adherence rates, and frequency of technical issues were established a priori Scientific feasibility, effect size estimates and variance were determined for Body Function outcome measures: active wrist extension, grip strength and Box and Blocks Test; and for Activities and Participation measures: Assisting Hand Assessment (AHA), Canadian Occupational Performance Measure (COPM) and Self-Reported Experiences of Activity Settings (SEAS)ResultsRecruitment response (31%) and assessment completion (84%) rates were good and 74% of participants reached self-identified practice goals As 17% of technical issues required external support to resolve, the intervention was graded as feasible with modifications No adverse events were reportedModerate effects were observed in Body Function measures (active wrist extension: SMD = 182, 95%CI = 085–278; Grip Strength: SMD = 063, 95%CI = 065–191; Box and Blocks: Hedge’s g = 058, 95%CI = -011–127) and small-moderate effects in Activities and Participation measures (AHA: Hedge’s g = 029, 95%CI = -039–097, COPM: r = 060, 95%CI = 013–082, SEAS: r = 024, 95%CI = -025–061)ConclusionA definitive RCT to investigate the effectiveness of this novel intervention is warranted Combining SFC-style coaching with high-quality biofeedback may positively engage youth in home rehabilitation to complement traditional therapy

Structural and dynamic properties of aluminosilicate melts: a molecular dynamics study.

Abstract: In the present work, the structural and dynamic properties of aluminosilicates (Al2O3) x -(SiO2)1-x (AS) as a function of the Al2O3 concentration x are studied by means of molecular dynamics simulations. Firstly, the parametrization of the Born-Mayer-Huggins type potential developed recently for the more general CaO-Al2O3-SiO2 ternary system is assessed. Comparison of local structural properties, such as the x-ray structure factor, partial pair-correlation functions, distributions of coordination numbers and bond angles, as well as the dynamics through the viscosity and self-diffusion coefficients to experimental data and other molecular dynamics simulations found in the literature, shows that this potential is transferable to AS melts for all compositions and is more reliable than other empirical potentials used so far. The evolution of viscosity with temperature in stable liquid and undercooled regions is studied in the whole composition range and results show a progressive increase of the fragility with increasing Al2O3 content correlated to that of local structural entities like the triply bonded oxygen (TBO), AlO5 and AlO6.