permits unrestricted nonommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. The moral rights of the named author(s) have been asserted. Explaining aging in evolutionary terms is relatively simple: while a strong selection pressure for an indi-vidual's survival exists until the per-petuation of his progeny is secured, there cannot be selecti...

Deformable registration has been widely used in neuroscience studies for spatial normalization of brain images onto the standard space. Because of possible large anatomical differences across different individual brains, registration performance could be limited when trying to estimate a single directed deformation pathway, i.e., either from template to subject or from subject to template. Symm...

The purpose of this retrospective study was to evaluate the outcome of flexor tendon lengthening performed for hammer toes or curly toes in children, after a mean follow up of 31 months. Specific attention was given to postoperative active flexion of the toe. The deformity improved in all patients, but less in the fourth and fifth toe. Active flexion returned and strength was recovered in all p...

The determination of rock strength holds paramount importance in the field engineering geology. In this study, we conduct a comprehensive geostatistical evaluation unconfined compressive (UCS) within 100 km2 area situated northeast Jeddah, Saudi Arabia. UCS values were indirectly estimated using an empirical equation based on Schmidt hammer rebound method, resulting range strengths from 9.2 to ...