Gerardus J. Sizoo Gerardus J. Sizoo Gerardus Johannes Sizoo (8 November 1900 – 4 January 1994) was the first professor of physics at the Vrije Universiteit. He is notable for the establishment and development of the applied physics laboratory in 1930 and the establishment of the Faculty of Mathematics and Physics at the Vrije Universiteit. His doctoral research explored the phenomenon of superconductivity at the University of Leiden, following the lead of Heike Kamerlingh Onnes and Wander Johannes de Haas. He completed his PhD in 1926, with a thesis entitled: "Onderzoekingen over den suprageleidenden toestand van metalen," under Wander Johannes de Haas. In
Heike Matthiesen at festivals and in guitar concert series and a juror in national and international competitions. Heike Matthiesen is especially passioned about the music of female composers. Heike Matthiesen represents a new generation of classical musician, communicative, open for new media and an avid ambassador for classical music on all relevant social media platforms. Solo: Heike Matthiesen Heike Matthiesen (born 27 June 1969) is one of Germany's leading classical guitarists whose virtuosity and spirited performance, coupled with a charismatic stage presence, are regularly highlighted by the press. Heike Matthiesen was born in Braunschweig, into a family of classical musicians. From early