Loughborough University. ALL Search. FILE UNDER EMBARGO. Thermal activation Eyring energy approach to characterise dependence of nanoscale friction on surface roughness. Jamal Umer 2020-06-26T14:19:22Z What Is physical activity? A holistic definition for teachers, researchers and policy makers. Joe Piggin 2020-06-26T13:20:39Z FILE UNDER EMBARGO. Standing out and fitting in: The sport and.