… Significant antitoxin titer rises were found in two of three patients with toxigenic isolates,
but none were found in the eight patients with nontoxigenic isolates (p = 0.055) (Fisher'S 2-tailed …

Study Objective: To describe the spectrum of illnesses associated with Escherichia coli 0157:H7
infections. Design: Described an outbreak that showed the broad spectrum of these …

… penicillin-susceptible pathogens (three of 27,11%) (P = .01, Fisher's exact test). Also, deaths
… Black RE, Craun GF, Blake PA. Epidemiology of commonsource outbreaks of shigellosis in …

Although graphite is known as one of the most chemically inert materials, we have found
that graphene, a single atomic plane of graphite, can react with atomic hydrogen, which …

Microfabrication of graphene devices used in many experimental studies currently relies on
the fact that graphene crystallites can be visualized using optical microscopy if prepared on …

There are few phenomena in condensed matter physics that are defined only by the
fundamental constants and do not depend on material parameters. Examples are the resistivity …

We investigated two outbreaks of an unusual gastrointestinal illness that affected at least 47
people in Oregon and Michigan in February through March and May through June 1982. …

The ultimate aim of any detection method is to achieve such a level of sensitivity that
individual quanta of a measured entity can be resolved. In the case of chemical sensors, the …

Graphene is only one atom thick, optically transparent, chemically inert, and an excellent
conductor. These properties seem to make this material an excellent candidate for applications …

Devices made from graphene encapsulated in hexagonal boron-nitride exhibit pronounced
negative bend resistance and an anomalous Hall effect, which are a direct consequence of …