We present an analysis of high resolution Chandra spectra of the contact binaries 44i Boo and VW Cep in order to examine the chemical composition of their coronae. The emerging pattern of coronal abundances in different stars is of a general trend in which low activity stars exhibit a solar-like FIP effect that is seen to gradually reverse itself

We have calculated a grid of empirically well tested evolutionary tracks with masses M between 0.5 and 50Msolar, spaced by approximately 0.1 in log M, and with metallicities Z=0.0001, 0.0003, 0.001, 0.004, 0.01, 0.02 and 0.03. We use a robust and fast evolution code with a self-adaptive non-Lagrangian mesh, which employs the mixing-length theory

In this review I will tour through the most recent findings on the internal kinematic properties of Local Group dwarf galaxies, as determined from extensive spectroscopic surveys of their stellar component.I will also discuss the current status on determinations of the dark matter content and distribution in these objects, with particular focus on

In this review I will discuss the current status on determinations of the dark matter content and distribution in Milky Way dwarf spheroidals, for which the available data-sets allow the application of sophisticated mass modeling techniques.

Table 1 Stellar parameters and respective errors derived for the volume limited sample. (1 data file).

Table 23 (tables 2 & 3 of the paper) contains the derived stellar parameters, metallicities, and masses, for stars not known to harbor any planetary-mass companion. Table 4 contains the derived stellar parameters, metallicities, and masses, for extra-solar planet-host stars. (2 data files).