Astronomers studying the outer solar system say the unusual alignment of distant objects points to the influence of Planet 9. Mathematical models suggest the odds of this pattern occurring by chance ...

The prospect of a humiliating pile-up in the governor's race has put the state’s political class increasingly on edge. An illustration featuring Gavin Newsom surrounded by the eight major Democratic ...

Transposable elements are stretches of DNA that can move around the genome. Many of these DNA sequences originate from long ago, when viruses inserted their genetic material into our ancestors' ...

The Element DS is a modular design that uses a standard pyramid adaptor and requires only 6.5 in. (16.5 cm) of clearance. The Element DS has a titanium core pyramid that easily adapts to all lower ...

Abstract: This study aimed to investigate the movement of upper anterior teeth during clear aligner treatment using the finite element method, comparing two approaches: the interference fit method and ...