Biomedical subjects

Andrew G Cohen

Publications and source records attributed to Andrew G Cohen.

2 recordsLinked to original sources

PubMed2006

Very special relativity.

By very special relativity (VSR) we mean descriptions of nature whose space-time symmetries are certain proper subgroups of the Poincaré group. These subgroups contain space-time translations together with at least a two-parameter subgroup of the Lorentz group isomorphic to that generated by K(x) + J(y) and K(y)- J(x). We find that VSR implies special relativity (SR) in the context of local quantum field theory or of conservation. Absent both of these added hypotheses, VSR provides a simulacrum of SR for which most of the consequences of Lorentz invariance remain wholly or essentially intact, and for which many sensitive searches for departures from Lorentz invariance must fail. Several feasible experiments are discussed for which Lorentz-violating effects in VSR may be detectable.

Journal Article↗

PubMedDate not supplied

A formal, standardized and evidence-based approach to Chest Pain Center development and process improvement: the Society of Chest Pain Centers and Providers accreditation process.

The notion of a Chest Pain Center has continued to develop over the past twenty years. The designation of "Chest Pain Center" now applies to the entire facility, much the same as that of "Trauma Center." The Chest Pain Center model incorporates both operational and clinical considerations required to develop proper Acute Coronary Syndrome (ACS) care in the context of a complex health-care system. The Society of Chest Pain Centers and Providers has launched a Chest Pain Center Accreditation initiative that provides an organizational road map for success in approaching the care for patients with ACS.

Accreditation↗