I have studied
Biology, Chemistry and Educational Sciences at the universities of
Regensburg and Bochum. In my
master thesis and my
doctoral thesis I was
engaged in hearing physiology of birds (Pigeons, Starlings and
Quails) using a modified form of
heart rate conditioning.
From 1988 to
1999 I have been a member of the Study Group Physiology of Excitable
Cells. Among others this group is investigating
More about our hypothesis of gravikinesis in ciliates.
During the last
years, ciliates have been used as model system to investigate the
perception of the gravity stimulus on cellular level. The capability
of orientation in their environment means a considerable benefit in
evolution: Active approach to food resources and, as well, avoidance
of bad areas becomes possible. Thus, even on the level of
unicellular organisms, reactions to diverse physical and chemical
stimuli can be found.
vector is the most reliable among these parameters, because it is
virtually invariant regarding its value and direction.
behaviour of the
has been examined under normal and
and also under
list of publications or
Forschungsbericht der Universität Bochum)
behaviour of 50 to 200 cells are video-recorded simultaneously.
After the experiment a sequence of video frames are superimposed
.by means of a
computer programme. Orientation and swimming rate of every single
cell are measured using computer-aided image analysis. Finally the
data are analysed statistically.
digitizing, image analysis and evaluation using
non parametric statistics
was developed by myself.
Since 1999 I am
engaged in the research project "Gravitationsbiologische
Untersuchungen an Ciliaten" together with my colleagues Ruth
Hemmersbach and Martin Krause at the
University of Bonn
and the German
Aerospace Centre at Cologne.
To study the
effects of long term weightlessness on ciliates e.g. in a space
station it is necessary to automate the maintenance of the specimen.
Development of such a computer operated culturing system (MICROPOND)
is part of our research project. The system is aimed at keep a
miniaturized ecosystem (ciliates and flagellates) in equilibrium for
about three months.
then use in student´s courses I have done some experiments in
in ciliates. (see
publications for details).
implementation and evaluation of behavioural experiments I am
involved in development of hard and software for specialized
experimental equipment and in external scientific campaigns:
examples of apparatus and some results of
research under microgravity conditions.
In summer 2002 I got an employment
at the German Aerospace Centre (DLR) and am now head of the
DLR_School_Lab Cologne. We invite middle-class and grammar school
students to visit our lab, which is located in the human centrifuge
hall of the DLR institute of Aerospace Medicine. In the authentic
environment we offer "hands on" experiments which are close to the
current research of the DLR institutes. Our aim is to promote the
interest in natural and engineering sciences and thus to encourage
young people to study sciences. More on the