Alfred Thayer Mahan: The Man and His Letters

Alfred Adler: the Man and His Work

Alfred Adler. The Man and His Work

Man and his spaceships

The resiliency and adaptive ability of microbial life in real time on Earth relies heavily upon horizontal gene transfer. Based on that knowledge, how likely is earth based microbial life to colonize extraterrestrial targets such as Mars? To address this question, we consider manned and unmanned space exploration, the resident microbiota that is likely to inhabit those vehicles, the adaptive po...

Alfred Klemm on his 100th Birthday

After completing my studies in physics at the university in Frankfurt (Diplom), I started my PhD work in the group of Professor Alfred Klemm at the MaxPlanck-Institut für Chemie in Mainz on November 1, 1958. In my thesis, I measured the difference in thermal conductivity between oand p-H2 at 20 K. Alfred Klemm’s main area of research was molten salts; this subject, however, resulted from his co...

Tryptophan Metabolism in Man * ALFRED

The amino acid tryptophan is unique because it contains the indole nucleus and because it is metabolized in man through several different biochemical pathways to a number of specific products. It is the precursor of serotonin and 5-hydroxyindoleacetic acid. In addition, after cleavage of the indole ring, it may be metabolized by way of the kynurenine pathway to 3-hydroxyanthranilic acid and ult...