We present observations and analyses of seven Galactic O stars of type O6 and earlier. The analyses are carried out using NLTE plane-parallel, hydrostatic models as well as NLTE spherical models with mass-loss. With detailed calculations for the former and simulations for the latter, it is shown that the flux blocking due to UV metal lines is

We study the bounds that can be obtained on four-fermion contact terms from the experimental data for e+p-->ν¯X obtained at DESY HERA and pp¯-->e+/- ν(-) measured at the Fermilab Tevatron. We compare these bounds with the ones available in the literature. Finally, we apply these results to study the compactification radius in theories with large

Far-IR Infrared Space Observatory (ISO) maps of four Seyfert galaxies are presented and compared with their optical counterpart images. The far-IR maps resemble the optical images of these galaxies when degraded to the ISO resolution. The spatial extension of the far-IR maps is also comparable to the optical extension of these objects, an

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