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https://www.selleckchem.com/btk.html Based on a model of protein denaturation rate limited by an entropy-related barrier, we derive a simple formula for virus inactivation time as a function of temperature. Loss of protein structure is described by two reaction coordinates conformational disorder of the polymer and wetting by the solvent. These establish a competition between conformational entropy and hydrophobic interaction favoring random coil or globular states, respectively. Based on the Landau theory of phase transition, the resulting free energy barrier is found to decrease linearly with the temperature difference T - Tm, and the inactivation rate should scale as U to the power of T - Tm. This form recalls an accepted model of thermal damage to cells in hyperthermia. For SARS-CoV-2 the value of U in Celsius units is found to be 1.32. Although the fitting of the model to measured data is practically indistinguishable from Arrhenius law with an activation energy, the entropy barrier mechanism is more suitable and could explain the pronounced sensitivity of SARS-CoV-2 to thermal damage. Accordingly, we predict the efficacy of mild fever over a period of ∼24 h in inactivating the virus. Although continuous subcutaneous insulin infusion therapy (ie, insulin pump therapy) is associated with improved metabolic control compared with multiple daily insulin injections in children with type 1 diabetes, it is unclear when it is best to start it after diagnosis. In this study, we aimed to compare the outcomes between early and delayed start of insulin pump therapy in young patients with type 1 diabetes. We based the current study on data from the multicentre, prospective diabetes follow-up registry (ie, Diabetes-Patienten-Verlaufsdokumentation [DPV]). The DPV registry comprises 501 diabetes centres from Germany, Austria, Switzerland, and Luxembourg. We included patients diagnosed with type 1 diabetes between 2004 and 2014, who were aged between 6 months and 15 years at th

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