Book Review: A.J. Appasamy and his Reading of Rāmānuja: A Comparative Study in Divine Embodiment

Book review of A.J. Appasamy and his Reading of Rāmānuja: A Comparative Study in Divine Embodiment. By Brian Philip Dunn. Oxford: Oxford University Press, 2016, xi + 315 pages

Exoplanets - search methods, discoveries, and prospects for astrobiology

Whereas the Solar System has Mars and Europa as the best candidates for finding fossil/extant life as we know it - based on complex carbon compounds and liquid water - the 263 (non-pulsar) planetary systems around other stars as known at 15 September 2008 could between them possess many more planets where life might exist. Moreover, the number of these exoplanetary systems is growing steadily, and with this growth there is an increase in the number of planets that could bear carbon-liquid water life. In this brief review the main methods by which exoplanets are being discovered are outlined, and then the discoveries that have so far been made are presented. Habitability is then discussed, and an outline presented of how a planet could be studied from afar to determine whether it is habitable, and whether it is indeed inhabited. This review is aimed at the astrobiology community, which spans many disciplines, few of which involve exoplanets. It is therefore at a basic level and concentrates on the major topics.Comment: 37 pages, 12 Figure

Underlying Factors in International Labour Migration in Asia: Population, Employment and Productivity Trends

[Excerpt] In Asia, migration pressures are likely to remain strong for many years to come because of the diverging trajectories of growth of the working age population and the vast differences in earnings between the more developed and the poorer countries of the region. While trends in education and in employment structure are bound to modify the underlying pressures for international mobility, the conclusion that migration pressures will remain strong is no longer in doubt

Number fields unramified away from 2

We consider finite extensions of the rationals which are unramified except for at 2 and infinity. We show there are no such extensions of degrees 9 through 15

Book Review: Baby Krishna, Infant Christ, Kristin Johnston Largen

A review of Kristin Johnston Largen\u27s Baby Krishna, Infant Christ by Arun W. Jones

Toroidal equipment packaging

For optimal packaging of equipment in shallow-cone vehicle toroidal packaging sets center of gravity of equipment forward. Packages are supported on rings within probe structure to provide low center of gravity. System permits interchanging of units for balance control, so minimum of lateral ballast is required

Measurements at 13.9 GHz of the radar backscattering cross section of the North Sea covered with an artificial surface film

The reduction of the Ku‐band (13.9 GHz) normalized radar cross section (NRCS) by an artificial monomolecular surface film (oleyl alcohol) on the sea surface was measured in the North Sea during the 1975 Joint North Sea Wave Project, JONSWAP 75 experiment. The aim of the surface film experiment was to simulate natural surface films which often occur on the ocean surface and are produced by plankton or fish. NRCS measurements were obtained from an aircraft at incidence angles of 41° and 47° at vertical and horizontal polarizations. For winds between 3.5 and 4.4 m/sec the maximum measured reduction was 7.3 ± 3.5 dB relative to the mean. In‐situ measurements showed that the oleyl alcohol film reduced the surface tension from 74 to 43 dyne/cm. Similar reductions in surface tension have also been measured on the ocean due to natural surface films of biological origin. It is noted that variations of the NRCS due to natural surface film effects may significantly limit the techniques used currently to infer surface wind vector over biologically active ocean regions