Biological tissues exhibit two contradictory properties: they have a robust architecture that is required for their maintenance and resistance to stress, and they can be extensively remodelled during ...

A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...

Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disorder that is marked by fasciculation, spasticity and progressive weakness of muscles, and results in difficulty speaking, ...

Abstract: Window design in overmoded waveguides that achieves both broadband and high power is a challenge in the vacuum electronic devices. Here, a broadband overmoded meta-surface-assisted window ...

ALS makes your muscles weak over time, affecting your arms, legs, and the muscles you use to eat and breathe. Early signs of ALS include clumsiness, dropping things, and tripping due to weakness in ...