Birth defects happen during fetal development, often in the first three months of pregnancy. They can be mild or severe, and they can affect appearance, organ function, or development. Causes include ...

An Air India pilot has reported a possible defect in the fuel control switch of a Boeing 787-8 Dreamliner, prompting the airline to ground the aircraft and inform the aviation regulator, the ...

THE problem of formulating a rigorous mathematical description of the molecular motion in .liquids has always been regarded as much more difficult than that of the kinetic theory of gases or of solids ...

Topological defects are quasiparticles whose topological nature provides some stability against perturbations. Skyrmions, domain walls, dislocations in crystals, vortices in superconductors and ...