Spin–charge separation. In condensed matter physics, spin–charge separation is an unusual behavior of electrons in some materials in which they 'split' into three independent particles, the spinon, the orbiton and the holon (or chargon). The electron can always be theoretically considered as a bound state of the three, with the spinon ...
The mission of the Division of STD Prevention (DSTDP) at the Centers for Disease Control and Prevention is to provide national leadership, research, policy development, and scientific information to help people live safer, healthier lives by the prevention of STDs and their complications. This mission is accomplished by assisting health ...