Given a particle in Euclidean space, a central force is a force that points toward or away from the origin and depends only on the particle’s distance from the origin. If the particle’s position at ...

Background: A quarter of all patients presenting to emergency departments are children. Although there are several large, well-conducted studies on adults enabling accurate selection of patients with ...

McDermott International Inc. urged a federal appeals court to affirm a ruling in its favor, saying investors are just trying to pass off derivative claims as direct, so a lower court was right to toss ...