The Clay Mathematics Institute in Cambridge, MA, has named "P versus NP" as one of its "Millennium" problems, and offers $1 million to anyone who provides a verified proof.
The mechanism of remove process of NP includes both the adsorption and bio-degradation of active sludge, among which 79. 1% of the remove quantity was biodegraded and 20. 9% was by adsorption.
The result of a some 4.0KD specific protein band appearing in 12% SDS-PAGE electrophoresis demonstrated that rabbit NP-1 gene expressed successfully in E.