Stem cells reside within fixed anatomical compartments — called niches — which provide a specialized environment to regulate the rate of stem cell proliferation, determine the fate of stem cell ...

Correspondence to Argyro Kotsifaki, Rehabilitation Department, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Ad Dawhah, Qatar; argyro.kotsifaki{at}aspetar.com Objectives Vertical jump ...

Background: A high level of strength is inherent in elite soccer play, but the relation between maximal strength and sprint and jumping performance has not been studied thoroughly. Objective: To ...

Abstract: A novel permutation rational function is proposed first, and the algebraic properties of permutation rational are discussed in detail. The application of this permutation rational function ...