A Profile of Pacific Islanders in Oakland, California

Pacific Islanders represent less than one percent of Oakland's population and as a result may be overlooked or categorized with other disparate communities. Although small in numbers, this community has its unique issues and concerns including the distinctly different groups that comprise the Pacific Islander community itself. At the same time it shares issues in common with other immigrant communities that should not be overlooked as Pacific Islanders develop a Pacific Islander American identity

Thermal pump-compressor for space use Patent

Thermal pump-compressor for converting solar energ

Unstable marginally outer trapped surfaces in static spherically symmetric spacetimes

We examine potential deformations of inner black hole and cosmological horizons in Reissner-Nordstr\"om de-Sitter spacetimes. While the rigidity of the outer black hole horizon is guaranteed by theorem, that theorem applies to neither the inner black hole nor past cosmological horizon. Further for pure deSitter spacetime it is clear that the cosmological horizon can be deformed (by translation). For specific parameter choices, it is shown that both inner black hole and cosmological horizons can be infinitesimally deformed. However these do not extend to finite deformations. The corresponding results for general spherically symmetric spacetimes are considered.Comment: 11 pages, 9 figures; V2: title changed to match published versio

Laser Doppler velocity instrument

Laser Doppler velocity instrument for measuring turbulence and mean velocity in subsonic and supersonic gas flow