Anna Gisela Johnen
Anna Gisela Johnen (born November 16, 1925 in Cologne ; † February 1, 2014 there ) was a German ornithologist and professor of zoology at the University of Cologne .
academic career
Anna Gisela Johnen studied botany and zoology at the University of Cologne from 1944 . In 1953 she did her doctorate at the chair of Professor Otto Kuhn on experimental investigations into the induction power of abnormal inductors in various forms and the importance of ribonucleic acid for the induction process .
On July 29, 1964, she completed her habilitation with the work Heteroplastic Explant Combinations in Ambystoma and Triturus for the Analysis of the Primary Steps in Neural Induction , supplemented by the work Experimental Investigations on the Importance of the Time Factor in the Process of Neural Induction , at the University of Cologne.
In 1970 she was appointed professor of zoology at the University of Cologne , where she worked until her retirement in 1990.
She bequeathed most of her fortune to the Cologne high school and foundation fund . The Prof. Dr. Anna Gisela Johnen is the largest of the individual foundations recently established under the umbrella of the Cologne Gymnasium and Foundation Fund. The purpose of the foundation is to support students of the natural sciences and especially the life sciences at German universities.
literature
- H. Engländer, A. Gisela Johnen, W. Vahs (1953): Investigations to clarify the performance specificity of various abnormal inducers in the embryonic development of Urodeles , Experientia Verlag, 15. III. 1953, Volume 9, Issue 3, pp. 100/101
- Hans Engländer, Anna Gisela Johnen, (1960): Investigations on Rhenish bat populations - Bonn zoological bulletin - earlier Bonn zoological contributions. 11_SH: 204-209.
- Anna Gisela Johnen (1961): Experimental studies on the importance of the time factor in the process of neural induction , Wilhelm Roux Archive for Development Mechanics of Organisms 1961, Volume 153, Issue 1, pp. 1-13
- Anna Gisela Johnen, (1964): Heteroplastic explant combinations in Ambystoma and Triturus for the analysis of the primary steps in neural induction , Springer Verlag .
- Brigitte Albers: Anna Gisela Johnen 1925–2014. A memory. ISBN 978-3-931596-88-0
Individual evidence
- ↑ a b Commemoration for Prof. Dr. Anna Gisela Johnen. (No longer available online.) Ub.uni-koeln.de, December 3, 2014, archived from the original on June 27, 2015 ; Retrieved June 28, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Cologne high school and foundation fund - donors. (No longer available online.) Stiftungsfonds.org, archived from the original on June 30, 2015 ; Retrieved June 28, 2015 .
| personal data | |
|---|---|
| SURNAME | Johnen, Anna Gisela |
| BRIEF DESCRIPTION | German ornithologist and professor of zoology at the University of Cologne |
| DATE OF BIRTH | November 16, 1925 |
| PLACE OF BIRTH | Cologne |
| DATE OF DEATH | 1st of February 2014 |
| Place of death | Cologne |