436 research outputs found

    Improving services for pupils with social, emotional and behavioural difficulties : responding to the challenges

    Get PDF
    This paper considers some of the major challenges facing key stakeholders, including teachers, professionals working in support services, parents and pupils, as they strive to improve services for children with social, emotional and behavioural difficulties (SEBD). For each of these challenges (working with families, low educational attainments, including pupils with SEBD in mainstream schools, transition from school to college or employment, early intervention and prevention) we review research evidence, mainly from the UK and USA, and discuss possible solutions. A key theme in the paper, discussed in the concluding section, is that governments, local authorities and schools, should use the research evidence to develop carefully planned and evidence based interventions that will lead to sustained improvements being made in the education of vulnerable young people.peer-reviewe

    High altitude Himalayan climate inferred from glacial ice flux

    Get PDF
    Glaciological processes are modeled to investigate precipitation patterns and the resulting mass flux of snow and ice across Himalayan topography. Our model tracks the accumulation and ablation of snow and ice and the transport of snow and ice across the topography by glacier motion. We investigate high elevation precipitation on the Annapurna Massif by comparing the existing ice cover with model-simulated glaciers produced by a suite of different precipitation scenarios. Our results suggest that precipitation reaches a maximum level well below the elevation of the highest peaks. Further, essentially no snow accumulates on the topography above an elevation of 6200–6300 m. Hence, the upper 1000+ m of the massif is a high elevation desert with little flux of snow and ice. Active glaciers are limited to a band of intermediate elevations where a maximum of about 60% of the landscape is covered by moving ice

    Combined diurnal variations of discharge and hydrochemistry of the Isunnguata Sermia outlet, Greenland Ice Sheet

    Get PDF
    In order to examine daily cycles in meltwater routing and storage in the Isunnguata Sermia outlet of the Greenland Ice Sheet, variations in outlet stream discharge and in major element hydrochemistry were assessed over a 6-day period in July 2013. Over 4 days, discharge was assessed from hourly photography of the outlet from multiple vantages, including where midstream naled ice provided a natural gauge. pH, electrical conductivity, suspended sediment, and major element and anion chemistry were measured in samples of stream water collected every 3 h. Photography and stream observations reveal that although river width and stage have only slight diurnal variation, there are large diurnal changes in discharge shown by the doubling in width of what we term the active channel, which is characterized by large standing waves and fast flow. The concentration of dissolved solutes follows a sinusoidal diurnal cycle, except for large and variable increases in dissolved solutes during the stream's waning flow. Solute concentrations vary by â€‰âˆŒâ€‰â€Ż30 % between diurnal minima and maxima. Discharge maxima and minima lag temperature and surface melt by 3–7 h; diurnal solute concentration minima and maxima lag discharge by 3–6 h. This phase shift between discharge and solute concentration suggests that during high flow, water is either encountering more rock material or is stored in longer contact with rock material. We suggest that expansion of a distributed subglacial hydrologic network into seldom accessed regions during high flow could account for these phenomena, and for a spike of partial silicate reaction products during waning flow, which itself suggests a pressure threshold-triggered release of stored water
    • 

    corecore