300 research outputs found
Parents’ perceptions of children’s psychosocial adaptation during the COVID-19 pandemic in Québec: Comparison with gifted and non-gifted children
Studies conducted in French Canadian schools following the COVID-19 lockdown report that children in a pandemic might have difficulties adapting. Gifted and twice-exceptional children—who might present special needs in this situation—could have different levels of psychosocial adaptation and mental-health needs than other children. This study assessed the psychosocial adaptation of gifted and twice-exceptional children and compared the adaptation levels of these individuals to those of non-identified gifted children. The results show that 62.5% of the gifted children had generally coped well with pandemic conditions, as did the non-identified gifted children (73.9%). Conversely, 59.5% of twice-exceptional children presented difficulties in adapting to the pandemic situation regardless of subscale (e.g., depression, anxiety, aggressiveness). Accordingly, they exhibited more internalized (p \u3c .001) and externalized (p \u3c .001) behaviors than the non-identified gifted children and more externalized behaviors than the gifted (p = .014). The children in the gifted sample exhibited age and gender differences, with the youngest showing more externalized difficulties than the older children and the boys showing more externalized behaviors than the girls. Taken together, these results suggest that giftedness is not an indication of a propensity for developing skills for adapting to pandemic conditions. It appears that having a neurodevelopmental condition associated with giftedness is more significant because the twice-exceptional children had more difficulty adapting than the non-identified gifted and, on some subscales, than the gifted
Denial of long-term issues with agriculture on tropical peatlands will have devastating consequences
Plastid genomes of two brown algae, Ectocarpus siliculosus and Fucus vesiculosus: further insights on the evolution of red-algal derived plastids
<p>Abstract</p> <p>Background</p> <p>Heterokont algae, together with cryptophytes, haptophytes and some alveolates, possess red-algal derived plastids. The chromalveolate hypothesis proposes that the red-algal derived plastids of all four groups have a monophyletic origin resulting from a single secondary endosymbiotic event. However, due to incongruence between nuclear and plastid phylogenies, this controversial hypothesis remains under debate. Large-scale genomic analyses have shown to be a powerful tool for phylogenetic reconstruction but insufficient sequence data have been available for red-algal derived plastid genomes.</p> <p>Results</p> <p>The chloroplast genomes of two brown algae, <it>Ectocarpus siliculosus </it>and <it>Fucus vesiculosus</it>, have been fully sequenced. These species represent two distinct orders of the Phaeophyceae, which is a major group within the heterokont lineage. The sizes of the circular plastid genomes are 139,954 and 124,986 base pairs, respectively, the size difference being due principally to the presence of longer inverted repeat and intergenic regions in <it>E. siliculosus</it>. Gene contents of the two plastids are similar with 139-148 protein-coding genes, 28-31 tRNA genes, and 3 ribosomal RNA genes. The two genomes also exhibit very similar rearrangements compared to other sequenced plastid genomes. The tRNA-Leu gene of <it>E. siliculosus </it>lacks an intron, in contrast to the <it>F. vesiculosus </it>and other heterokont plastid homologues, suggesting its recent loss in the Ectocarpales. Most of the brown algal plastid genes are shared with other red-algal derived plastid genomes, but a few are absent from raphidophyte or diatom plastid genomes. One of these regions is most similar to an apicomplexan nuclear sequence. The phylogenetic relationship between heterokonts, cryptophytes and haptophytes (collectively referred to as chromists) plastids was investigated using several datasets of concatenated proteins from two cyanobacterial genomes and 18 plastid genomes, including most of the available red algal and chromist plastid genomes.</p> <p>Conclusion</p> <p>The phylogenetic studies using concatenated plastid proteins still do not resolve the question of the monophyly of all chromist plastids. However, these results support both the monophyly of heterokont plastids and that of cryptophyte and haptophyte plastids, in agreement with nuclear phylogenies.</p
Designing and conducting a cluster-randomized trial of ICU admission for the elderly patients: the ICE-CUB 2 study
International audienceBackgroundThe benefit of ICU admission for elderly patients remains controversial. This report highlights the methodology, the feasibility of and the ethical and logistical constraints in designing and conducting a cluster-randomized trial of intensive care unit (ICU) admission for critically ill elderly patients.MethodsWe designed an interventional open-label cluster-randomized controlled trial in 24 centres in France. Clusters were healthcare centres with at least one emergency department (ED) and one ICU. Healthcare centres were randomly assigned either to recommend a systematic ICU admission (intervention group) or to follow standard practices regarding ICU admission (control group). Clusters were stratified by the number of ED annual visits (44,616 visits), the presence or absence of a geriatric ward and the geographical area (Paris area vs other regions in France). All elderly patients (≥75 years of age) who got to the ED were assessed for eligibility. Patients were included if they had one of the pre-established critical conditions, a preserved functional status as assessed by an ADL scale ≥4 (0 = very dependent, 6 = independent), a preserved nutritional status (subjectively assessed by physicians) and without active cancer. Exclusion criteria were an ED stay >24 h, a secondary referral to the ED and refusal to participate. The primary outcome was the mortality at 6 months calculated at the individual patient level. Secondary outcomes were ICU and hospital mortality, as well as ADL scale and quality of life (as assessed by the SF-12 Health Survey) at 6 months.ResultsBetween January 2012 and April 2015, 3036 patients were included in the trial, 1518 patients in 11 clusters allocated to intervention group and 1518 patients in 13 clusters allocated to standard care. There were 51 protocol violations.ConclusionsThe ICE-CUB 2 trial was deemed feasible and ethically acceptable. The ICE-CUB 2 trial will be the first cluster-randomized trial to assess the benefits of ICU admission for selected elderly patients on long-term mortality
Isoprostanoids quantitative profiling of marine red and brown macroalgae
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Glucocorticoid-related changes in body mass index among children and adolescents with rheumatic diseases
Objective To examine the temporal and dose-related effects of glucocorticoids (GCs) on body mass index (BMI) in children with rheumatic diseases. Methods Children initiating GCs for a rheumatic disease (n = 130) were assessed every 3 months for 18 months. BMI, weight, and height Z score trajectories were described according to GC starting dosage in prednisone equivalents: high (≥1.0 mg/kg/day), low (\u3c0.2 mg/kg/day to a maximum of 7.5 mg/day), and moderate (between high and low) dosage. The impact of GC dosing, underlying diagnosis, pubertal status, physical activity, and disease activity on BMI Z scores and on percent body fat was assessed with longitudinal mixed-effects growth curve models. Results The GC starting dose was high in 59% and moderate in 39% of patients. The peak BMI Z score was +1.29 at 4 months with high-dose GCs and +0.69 at 4.2 months with moderate-dose GCs (P \u3c 0.001). Overall, 50% (95% confidence interval 41-59%) of the children returned to within +0.25 SD of their baseline BMI Z score. Oral GC dose over the preceding 3 months was the most significant determinant of BMI Z score and percent body fat. The proportion of days in receipt of GCs, disease activity, and a diagnosis of systemic-onset juvenile idiopathic arthritis were also associated with BMI Z scores. The correlation between changes in BMI and changes in percent body fat was 0.09. Conclusion In children with rheumatic diseases starting moderate and high doses of GCs, BMI Z scores peaked at 4 months, and only half returned to within +0.25 SD of their baseline BMI Z score after 18 months. Copyright © 2013 by the American College of Rheumatology
Regards d’enseignants québécois sur les élèves doués : points de vue diversifiés
This study examines teachers’ perceptions of gifted students in their class, in a Quebec school service centre, and the influence of personal and contextual variables. The sample consists of 21 primary school teachers (18 women and 3 men). After the lexical analysis carried out with the Alceste software, four specific classes of statements emerge from the teachers’ discourse. In addition, age, teaching cycle, type of class, number of years of experience, involvement in an intervention plan and experience with giftedness predict the heterogeneity of the perceptions of teachers towards giftedness. The results suggest more traditional and stereotypical perceptions of giftedness by teachers.
Keywords: perceptions, representations, teachers, giftedness, characteristics, high potential, lexical analysisCette étude s’intéresse aux perceptions des enseignants concernant les élèves doués de leur classe, dans un centre de services scolaire québécois, et à l’influence de certaines variables personnelles et contextuelles sur ces perceptions. L’échantillon se compose de 21 enseignants du primaire (18 femmes et 3 hommes). À l’issue de l’analyse lexicale réalisée avec le logiciel Alceste, quatre classes d’énoncés spécifiques se dégagent du discours des enseignants. L’âge, le cycle d’enseignement, le type de classe, le nombre d’années d’expérience, l’implication dans un plan d’intervention et l’expérience envers la douance constituent des facteurs explicatifs de l’hétérogénéité des perceptions des enseignants envers la douance. Les résultats portent également à croire que des perceptions plus traditionnelles et stéréotypées de la douance persistent chez certains enseignants.
Mots-clés : perceptions, représentations, enseignants, douance, caractéristiques, haut potentiel, analyse lexical
Incident vertebral fractures among children with rheumatic disorders 12 months after glucocorticoid initiation: A national observational study
Objective. To determine the frequency of incident vertebral fractures (IVF) 12 months after glucocorticoid (GC) initiation in children with rheumatic diseases and to identify children at higher risk. Methods. Children with rheumatic diseases initiating GC were enrolled in a prospective observational study. Annual spine radiographs were evaluated using the Genant semiquantitative method. Spine areal bone mineral density (aBMD) was measured every 6 months. Clinical features, including cumulative GC dose, back pain, disease and physical activity, calcium and vitamin D intake, and spine aBMD Z scores, were analyzed for association with IVF. Results. Seven (6%) of 118 children (95% confidence interval 2.9-11.7%) had IVF. Their diagnoses were: juvenile dermatomyositis (n = 2), systemic lupus erythematosus (n = 3), systemic vasculitis (n = 1), and mixed connective tissue disease (n = 1). One child was omitted from the analyses after 4 months because of osteoporosis treatment for symptomatic IVF. Children with IVF received on average 50% more GC than those without (P = 0.030), had a greater increase in body mass index (BMI) at 6 months (P = 0.010), and had greater decrements in spine aBMD Z scores in the first 6 months (P = 0.048). Four (67%) of 6 children with IVF and data to 12 months had spine aBMD Z scores less than-2.0 at 12 months compared to 16% of children without IVF (P = 0.011). Conclusion. The incidence of VF 12 months following GC initiation was 6%; most children were asymptomatic. Children with IVF received more GC, had greater increases in BMI, and had greater declines in spine aBMD Z scores in the first 6 months. © 2012, American College of Rheumatology
Les mémoires de maîtrise en service social à l’Université d’Ottawa et à l’Université Laurentienne
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