∆-1-Piperideine-6-carboxylate dehydrogenase, a new enzyme that forms α-aminoadipate in Streptomyces clavuligerus and other cephamycin C-producing actinomycetes Juan L. de la FUENTE*, Angel RUMBERO†, Juan F. MARTI;N*‡ and Paloma LIRAS*‡ *Area of Microbiology, Faculty of Biology, University of Leo! n, 24071 Leo! n, Spain, †Department of Organic Chemistry, Autonomous University of Madrid, 28049 Ca...

User terminals for Communications-On-The-Move (COTM) systems and Low Earth Orbit (LEO) and Medium Earth Orbit (MEO) satellite ground terminals require antennas with high gain and steerable beams. LEO cubesats offer unprecedented opportunities for scientific discoveries as well as commercial space adventures. Internet is provided to aeroplanes, ships and defence and other vehicles by COTM system...

We present stellar metallicities in Leo I, Leo II, IC 1613, and Phoenix dwarf galaxies derived from medium (F390M) and broad (F555W, F814W) band photometry using the Wide Field Camera 3 instrument on board the Hubble Space Telescope. We measured metallicity distribution functions (MDFs) in two ways, (1) matching stars to isochrones in color–color diagrams and (2) solving for the best linear com...

We present new kinematic results for a sample of 387 stars located in and around the Milky Way satellite dwarf spheroidal galaxy Leo I. These spectra were obtained with the Hectochelle multi-object echelle spectrograph on the MMT, and cover the MgI/Mgb lines at about 5200Å. Based on 297 repeat measurements of 108 stars, we estimate the mean velocity error (1σ) of our sample to be 2.4 km/s, with...