Young Stellar Objects (YSO) Evolution.- Outflow, Infall, and Rotation in High-Mass Star Forming Regions.- MERLIN and Puschino Observations of H2O Masers in Outer Galactic SFR S128N.- Observing Magnetic Fields in Star-Forming Regions.- Evidence for Co-Propagation of 4765- and 1720-MHz OH Masers in Star-Forming Regions.- Magnetic Fields in Star-Forming Regions: Theoretical Aspects.- VLBI Water Maser Proper Motion Measurements in Star-Forming Regions.- High-Resolution Observations in B1-IRS: Ammonia, CCS and Water Masers.- The Kinematics, Physical Condition and Magnetic Field of the W3 IRS5 Region.- EVN Observations of H2O Masers Towards the High-Mass Young Stellar Object in AFGL 5142.- AGN/Starburst Evolution.- Gravitationally Induced Inflow in Starbursts and AGN.- Feeding Monsters - A Study of Active Galaxies.- The QSO Hosts I Zw 1 and 3C 48: Prototypes of a Merger-Driven Quasar Evolution?.- H20 Megamasers: Accretion Disks, Jet Interaction, Outflows or Massive Star Formation?.- Probing the Obscuring Medium Around Active Nuclei Using Masers: The Case of 3C 403.- Low-Luminosity Extra-Galactic H20 Masers.- Statistical Approach.- Monitoring Water Masers in Star-Forming Regions.- Dense Gas, Chemistry and Star Formation in Luminous Galaxies.- A Molecular Ring in the Liner NGC 5218.- Neutral Gas in Starbursts and Active Galactic Nuclei.- CO, 13CO, and [CI] in Galaxy Centers.- Diagnostics of YSO.- Chemical Evolution of Protostars.- Model of the W3(OH) Environment Based on Data for Both Maser and "Quasi-Thermal" Methanol Lines.- Long-Term Monitoring of 6.7- and 12.2-GHZ Methanol Masers.- Ultra-Compact H II Regions.- Maser Action in Methanol Transitions.- The Methanol Maser Emission in W51.- NGC7538 IRS1 N: Modeling a Circumstellar Maser Disk.- Diagnostics ofAGN/Starbursts.- Dense Molecular Gas Around Protostars and in Galactic Nuclei: PDRs and XDRs.- Molecular Absorption in Cen A on VLBI Scales.- High-Resolution Acta Observations of the Circumnuclear Molecular Clouds of NGC 4945.- Megamasers: Molecular Diagnostics of the Nuclear ISM.- Understanding Extragalactic Hydroxyl.- The Sub-PC Scale Accretion Disk of NGC 4258.- OH Megamasers: Circumnuclear Gas in Starbursts.- Continuum EVN and MERLIN Observations of Ultra Luminous Infrared Galaxies.- Molecular Gas in the Abell 262 Cluster Galaxy UGC 1347.- Dense Gas Diagnostics: Maser Excitation and Variability.- Spectral Line and Continuum Radiation Propagation in a Clumpy Medium.- A Thin Ring Model for the OH Megamaser in IIIZw35.