1. Department
of Biophysics, Faculty of Science, P.J. Safarik University, Jesenna
5, Kosice 04 154, Slovakia
2. Instituto
de Estructura de la Materia, IEM-CSIC, Serrano 121, 28006 Madrid, Spain
3. Center
for Interdisciplinary Biosciences,
Faculty of Science, P.J. Safarik University, Jesenna 5, Kosice 04 154, Slovakia