Abstract: An information system may include a server with a computer processor. Medical provider availability data, payment data, medical provider expertise data, patient clinical data, medical provider physical location data, patient data, and patient status data may be supplied by each of a plurality of medical providers to the server. A referral module may be accessible by a user to communicate with the plurality of medical providers and to provide from the server the medical provider availability data, payment data, medical provider expertise data, patient clinical data, medical provider physical location data, patient data, and/or patient status data to the user. A scheduling module in communication with the server may schedule any of the plurality of medical providers based upon the medical provider availability data, payment data, medical provider expertise data, patient clinical data, medical provider physical location data, patient data, and/or patient status data.

Abstract: Amorphous precipitated silica having a low proportion of small pores as evidenced by low Sears surface areas are useful as reinforcing pigments for various rubbers.

Abstract: A flux scanner head generates a unidirectional magnetic field external to the head adjacent a scanning surface thereof. Workpieces to be subjected to magnetic particle inspection may be successively passed through, held in, or otherwise associated with, the unidirectional field at different angles to achieve magnetization along multiple axes, without physical or electrical contact with the workpiece. The scanner head is usable with both residual and continuous methods of magnetic particle inspection, and as either a hand-held or fixed-mount system. The scanner head itself incorporates a coil having a plurality of turns with a ferromagnetic core separating such turns so as to intensify and direct outward and external to the surface of the scanner head the magnetic field generated by current flow through the coil.