We investigate nucleosynthesis in the supernovae post-core bounce neutrino-driven wind environment in the presence of active-sterile neutrino transformation. We consider active-sterile neutrino oscillations for a range of mixing parameters: vacuum mass-squared differences of 0.1 eV ≤ δm ≤ 100 eV, and vacuum mixing angles of sin 2θv ≥ 10 . We find a consistent r-process pattern for a large range...

Dust plays crucial roles in galaxy formation and evolution. In the early epoch of galaxy evolution dust is only supplied by supernovae (SNe). With the aid of a new physical model of dust production by SNe, we constructed a model of dust emission from forming galaxies. We show the evolution of the spectral energy distribution (SED). Then we adopt this model to a local starbursting dwarf galaxy S...

There are some records of early attempts to maintain BF Trypanosoma brucei in vitro [1, 2], but short-term propagation, in the presence of feeder cells (L-cells), was not achieved until 1967 [3]. Continuous propagation was not reported until 1977, when the Lister 427 strain (clone 052 from GAMC) was successfully propagated in RPMI 1640 medium with 25 mM HEPES and 20% heatinactivated FBS, in the...

Population and labour force projections are made for 27 selected European countries for 2002-052, focussing on the impact of international migration on population and labour force dynamics. Starting from single scenarios for fertility, mortality and economic activity, three sets of assumptions are explored regarding migration flows, taking into account probable policy developments in Europe fol...

Geometrical optics is extended so as to provide a model for spinning light rays via the coadjoint orbits of the Euclidean group characterized by color and spin. This leads to a theory of “geometrical spinoptics” in refractive media. Symplectic scattering yields generalized Snell-Descartes laws that include the recently discovered optical Hall effect. MSC : 78A05; 37J15; 70H40 Preprint : CPT-200...

We wish to thank Professor Sir Hans A. Krebs, F.R.S., for his interest and encouragement and Mrs M. Jenkins for her skilled technical assistance. This work was supported by the Rockefeller Foundation and by the Office of Scientific Research of the Air Research and Development Command of the United States Air Force, through its European Office, under contract no. AF. 61(052)-180, and was done wh...