In honour of Professor Klaus Heinz

Editorial Board : Klaus Düllmann Frank Heid Heinz Herrmann Karl - Heinz Tödter Deutsche

We put forward a Merton-type multi-factor portfolio model for assessing banks’ contributions to systemic risk. This model accounts for the major drivers of banks’ systemic relevance: size, default risk and correlation of banks’ assets as a proxy for interconnectedness. We measure systemic risk in terms of the portfolio expected shortfall (ES). Banks’ (marginal) risk contributions are calculated...

Heinz Nixdorf Institute Heinz Nixdorf

Honour to Whom Honour Is Due

cal College who has received the title of Kui Bahadur from Government, and we are fully convinced that these gentlemen well deserve the distinctions conferred on them. Nevertheless, it strikes us as somewhat remarkable, that of all the professors attached to the College, only one (Dr. Fayrer) has received any mark of distinction from the Government. This remark applies not only to the medical o...

Theoretical and experimental biology in one—A symposium in honour of Professor Kuo-Chen Chou’s 50th anniversary and Professor Richard Giegé’s 40th anniversary of their scientific careers

It has been a dream that theoretical biology can be extensively applied in experimental biology to accelerate the understanding of the sophiscated movements in living organisms. A brave assay and an excellent example were represented by enzymology, in which the well-established physico-chemistry is used to describe, to fit, to predict and to improve enzyme reactions. Before the modern bioinform...

MELCHERS , KLAUS FEY , AnD KLAUS EICHMANN

The identification of T cell growth factors (TCGF) t (1-3) has brought major progress to the study of T lymphocytes, allowing long-term tissue culture of selected T cells. Such lines can be cloned in vitro and kept functionally active as killer (2, 4-7) or helper cells (7-10), or cells showing antigen-specific proliferation (1 I, 12). The major drawback of the use of long-term culture lines, ho...