2) Uncertainties in the nuclear wave functions. More recent Cabibbo-model predictions 9 of P y cc (1.08 MeV) are in qualitative agreement with, and somewhat larger than, the results of Ref. 8.(3) The "enhancement factor" to be expected from the neutral weak currents is difficult to calculate precisely; current estimates 10 for the Weinberg-Salam model point to a value of about 10. The 18 F system is one of the most favorable cases, both experimentally and theoretically, for studying AT= 1 PNC forces. With the Cabibbomodel prediction of Ref. 8, the present experiment yields an upper limit of 7.5 for the "enhancement factor" produced by neutral weak currents. 11
HighlightsWe performed an overview of published systematic reviews and a systematic review of primary studies evaluating the effectiveness of interventions to prevent scalds in childhood.There is little evidence that interventions are effective in reducing the incidence of scalds in children.There is no consistent evidence on the effectiveness of interventions on the safe handling of hot food or drinks nor improving kitchen safety practices.Education, home safety checks along with thermometers or thermostatic mixing valves is effective in reducing hot water temperature.
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