Contents - Editorial

Ossietzky, Tucholsky and Theodor Lessing Gerhard Kranker, Ute Maack

The second generation of Turkish migrants Norbert Westring, Andrea Jansen, Ayca Polat, Walter Siebel

Flexible helpers in the micro and nano world Sergei Fatikov

Prospects for photovoltaics Jürgen Parisi, Vladimir Dyakonov, Carsten Deibel, Ingo Riedel

What touches children about time / Alternative models of the universe Simone Seitz, Shu-Chiu Liu

Focus News, academic appointments, university society, doctorates, habilitations