Dear Colleague, We would like to inform you that the 7-th edition of the International Workshop "Lie Theory and Its Applications in Physics" shall be held in Bulgaria (resort "Chaika", near Varna, on the Black Sea), 18 - 24 June 2007. ... The first three workshops were organised in Clausthal (1995,7,9), the 4th was part of the 2nd Symposium 'Quantum Theory and Symmetries' in Cracow (2001), the 5th was organised in Varna (2003) http://theo.inrne.bas.bg/~dobrev/LT-5/ . ...

... The distance scales of the objects are matched both by comparing the first derivatives of the angular velocity determined separately from radial velocities and proper motions and by the statistical-parallax method. ... Good agreement between the inferred 0 and our calculations based on space velocities suggests that the Lindblad relation holds throughout the entire sample volume. ... Brandt and Blitz (1993) published the distances and radial velocities for a total of 206 H II-regions. ... Astron. ...