New Convertible Stethoscope

Western Electric Introduce New Electrical Stethoscope

Convertible limited (multi-) verifier signature: new constructions and applications

A convertible limited (multi-) verifier signature (CL(M)VS) provides controlled verifiability and preserves the privacy of the signer. Furthermore, limited verifier(s) can designate the signature to a third party or convert it into a publicly verifiable signature upon necessity. In this proposal, we first present a generic construction of convertible limited verifier signature (CLVS) into which...

Stethoscope Acoustics

IT is an anachronism that the stethoscope, introduced in 1819, remains an indispensable medical tool today although no standards have ever been set for its acoustical performance.' Neither has a standard test been established for evaluating the acoustics of the intact instrument. Furthermore, there is no information on the intimate acoustical interaction of the stethoscope with the doctors' ear...

A New Digital Stethoscope with Environmental Noise Cancellation

A medical instrument for acquisition and analysis of phono-cardiac signals is described in the paper. The proposed system is based on an electronic stethoscope with enhanced performances in environmental noise reduction, achieved by means of two microphones whose signals are combined by an adaptive algorithm. A software tool able to reproduce, visualize and analyze cardiac sounds completes the ...

The dermatologist’s stethoscope—traditional and new applications of dermoscopy

Dermoscopy is a non-invasive tool that is largely recognized and used in the diagnosis of pigmented and non-pigmented skin tumors. A steadily increasing number of publications on alternative applications of dermoscopy suggest, however, that dermoscopy aids also the recognition of skin manifestations in general dermatology. The increasing use of dermoscopy in general dermatology can be partially...