John Vinarsky has been named VP of executive resources and office solutions for Amerinet (St. Louis). Vinarsky previously served as director of laboratory, diagnostic imaging and Amerinet Central’s director of clinical services. Amerinet is a national health care group purchasing organization.

Melodie Domurad, PhD, has been named VP of regulatory, medical affairs and quality systems for BioSphere Medical (Rockland, Massachusetts). Domurad joins BioSphere after ten years at Matritech. BioSphere is a medical device company that has pioneered the use of bioengineered microspheres to treat uterine fibroids, hypervascularized tumors, and vascular malformations by a minimally invasive, image-guided medical procedure called embolotherapy.

Zvika Slovin has been named VP of medical devices and life science for Elron Electronic Industries (Tel Aviv, Israel). Previously, Slovin was the founder of Israeli start-up company RDC communications.

James Mayer has been named COO of International Isotopes (Idaho Falls, Idaho). Mayer has more than 25 years of management experience in the U.S. Navy and civilian corporations. International Isotopes develops a range of nuclear medicine calibration and reference standards, high purity fluoride gases and a variety of cobalt-60 products, such as teletherapy sources.

The U.S. Securities and Exchange Commission (Washington) said that Mary Head has been named assistant director of policy in the office of investor education and advocacy. Prior to becoming counsel to the agency’s commissioner, Head served as counsel to former SEC commissioners and Acting Chairmen Laura Unger and Cynthia Glassman. OIEA has contact with thousands of individual American investors each year through its investor assistance and education programs.