Mass Measurements of Neutron-Deficient Yb Isotopes and Nuclear Structure at the Extreme Proton-Rich Side of the N=82 Shell

International audienceHigh-accuracy mass measurements of neutron-deficient Yb isotopes have been performed at TRIUMF using TITAN’s multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS). For the first time, an MR-TOF-MS was used on line simultaneously as an isobar separator and as a mass spectrometer, extending the measurements to two isotopes further away from stability than otherwise possible. The ground state masses of Yb150,153 and the excitation energy of Ybm151 were measured for the first time. As a result, the persistence of the N=82 shell with almost unmodified shell gap energies is established up to the proton drip line. Furthermore, the puzzling systematics of the h11/2-excited isomeric states of the N=81 isotones are unraveled using state-of-the-art mean field calculation

Feminist Theory, Feminist Psychology: A Bibliography Of Epistemology, Critical Analysis, And Applications

A selection of recent (post-1980) works on feminist theory and method, this bibliography includes literature from psychology and other social sciences, feminist studies, and philosophy of science. The first of its four sections concerns epistemology and metatheory. The second lists works that offer reformulations or critical analyses of key concepts in gender studies; many of these are grounded in social constructionist and feminist standpoint epistemologies. The third section cites writings that illustrate the potential of new epistemological stances or exemplify new ways of working. The last section lists related bibliographies. (232 entries.