EUS at 50

Direct evidence for significant spin-polarization of EuS in Co/EuS multilayers at room temperature

The new era of spintronics promises the development of nanodevices, where the electron spin will be used to store information and charge currents will be replaced by spin currents. For this, ferromagnetic semiconductors at room temperature are needed. We report on significant room-temperature spin polarization of EuS in Co/EuS multilayers recorded by x-ray magnetic circular dichroism (XMCD). Th...

Oxygen concentrators performance with nitrous oxide at 50:50 volume.

BACKGROUND AND OBJECTIVES Few investigations have addressed the safety of oxygen from concentrators for use in anesthesia in association with nitrous oxide. This study evaluated the percent of oxygen from a concentrator in association with nitrous oxide in a semi-closed rebreathing circuit. METHODS Adult patients undergoing low risk surgery were randomly allocated into two groups, receiving a...

Celebrating the ACIP at 50.

In this issue, Walton, Orenstein, and Pickering provide a useul summary of the 50-year history of the Advisory Committee n Immunization Practices (ACIP). When the ACIP was formed in 964, immunization recommendations for children were primarily eveloped by the American Academy of Pediatrics (AAP), with the merican Public Health Association and other professional organiations also providing recom...

Hematopoietic-cell transplantation at 50.

Medicare at 50--moving forward.

Synopsis The Medicare program must contend with serious challenges as it enters its 50th anniversary year, including rising expenditures, a fragmented, confusing benefit structure, and inadequate financial protections for some low-income beneficiaries and high users of services. In part 2 of their report, David Blumenthal, M.D., Karen Davis, and Stuart Guterman examine these challenges and disc...