Nonlinear fluorescence through intermolecular energy transfer and resolution increase in fluorescence microscopy

¹High Resolution Optical Microscopy Group, Max-Planck-Institute for Biophysical Chemistry, D-37070 Göttingen, Germany
²Department of Medical Physics and Chemistry, University of Turku, FIN-20521 Turku, Finland
^*E-mail: shell(at)gwdg.de

Received 22 September 1998, accepted 22 October 1998 by U. Eckern

On measuring gravitomagnetism via spaceborne clocks: a gravitomagnetic clock effect

University of Missouri, Columbia / Universität Köln

Received 16 October 1998, accepted 30 October 1998 by F. W. Hehl

Density-matrix spectra for integrable models

Fachbereich Physik, FU Berlin / Research Institute for Solid State Physics, Budapest
^*E-mail: peschel(at)physik.fu-berlin.de

Received 14 October 1998, revised 11 November 1998, accepted 18 November 1998 by U. Eckern

Scattering of neutrons on a Bose condensate

Joint Institute for Nuclear Research, Dubna 141980, Russia
^*E-mail: yarunin(at)thsun1.jinr.ru

Received 17 June 1998, revised 20 August 1998, accepted 22 October 1998 by U. Eckern