• Scott Mahnken has been named director of marketing at Milestone Scientific (Livingston, New Jersey). Mahnken previously was director of partnership relations at ArcMesa Educators. Milestone is the developer of CompuFlo, a computer-controlled, pressure-sensitive infusion, perfusion, suffusion and aspiration technology, which provides real-time readouts of pressures, fluid densities and flow rates, enabling the delivery and removal of fluids.

• Naviscan PET Systems (San Diego) said it has appointed Paul Mirabella as chairman of the board, in addition to retaining his responsibilities as president/CEO. Naviscan develops compact, high-resolution PET scanners intended to provide organ-specific imaging and guide radiological and surgical procedures.

• Carl Dieffenbach, PhD, has been appointed director of the Division of AIDS of the National Institute of Allergy and Infectious Diseases (NIAID, Washington), a unit of the National Institutes of Health. NIAID supports basic and applied research to prevent, diagnose and treat infectious diseases such as HIV/AIDS and other sexually transmitted infections, influenza, tuberculosis, malaria and illness from potential agents of bioterrorism.

• Luis Mostacero has been promoted from VP of finance to CFO at Paradigm Medical Industries (Salt Lake City). Paradigm is a developer of ultrasound, glaucoma diagnostics and management devices.