Dimethyl sulphate (DMS) is an innocuous appearing, widely used, and highly toxic chemical. It is used both as a methylating agent in industrial chemical synthesis and in medical laboratories for chemical cleavage of DNA. It is readily absorbed through the skin, mucous membranes, and gastrointestinal tract. Delayed toxicity allows potentially fatal exposures to occur prior to development of any ...

PURPOSE To examine the relative contribution of weapon carrying of peers, aggression, and victimization to weapon carrying of male and female adolescents over time. METHODS Data were derived from a population-based sample of male (N = 224) and female (N = 244) adolescents followed from grade 10 (M age = 15.5) to grade 11 (M age = 16.5). Peer networks were derived from best friend nominations....

The bio-defense technology described in this paper is based on a novel, very high intensity, pulsed Advanced UV Source (AUVS) that very rapidly and effectively destroys biological agents. The technology can be used to protect buildings against biological weapon (BW) attack and / or create safe zones within buildings. The technology can also be used to destroy some chemicals, and with additional...

root class Player extends Objectf bool brave; abstract bool wake() { } ; abstract Weapon kissed() {Player } ; g state class Frog extends Playerf Vocal pouch;bool wake() { } ; abstract Weapon kissed() {Player } ; g state class Frog extends Playerf Vocal pouch; bool wake() { } fpouch.blow() ; braveg Weapon kissed() {Player } fthis⇓Prince; sword:= new Weapong g state class Prince extends Playerf W...

te c h o p s D irected Energy Weapons (DEW) have been a recurring theme in science fiction literature and cinema ever since H.G. Wells published the ‘War of the Worlds’ in 1898. The idea of a ‘death ray’ that can instantly destroy or burn a target at a distance retains its allure to this very day. More than a century after Wells contrived his ‘heat ray’ the technology is maturing to the point o...