Svante August Arrhenius

Imagine: An Interview with Svante Pääbo

Svante Pääbo works on the edge of what’s possible. He ignites our imagination, unlocking tightly held secrets in ancient remains. By patiently and meticulously working out techniques to extract genetic information from skin, teeth, bones, and excrement, Pääbo has become the leader of the ancient DNA pack. Sloths, cave bears, moas, wooly mammoths, extinct bees, and Neanderthals— all have succumb...

Convex Arrhenius plots and their interpretation.

This paper draws attention to selected experiments on enzyme-catalyzed reactions that show convex Arrhenius plots, which are very rare, and points out that Tolman's interpretation of the activation energy places a fundamental model-independent constraint on any detailed explanation of these reactions. The analysis presented here shows that in such systems, the rate coefficient as a function of ...

Volatility Time and Properties of Option Prices by Svante Janson

We use a notion of stochastic time, here called volatility time, to show convexity of option prices in the underlying asset if the contract function is convex as well as continuity and monotonicity of the option price in the volatility. The volatility time is obtained as the almost surely unique stopping time solution to a random ordinary differential equation related to volatility. This enable...

Svante Pääbo: pushing ancient DNA to the limit

Archaeology drew Svante Pääbo to science when he was a boy growing up in Sweden. But the university archaeology courses he took while still in high school in Uppsala were “too slow,” he says. So he matriculated in medicine and finally landed in one of the most technically demanding areas of laboratory biology: immunology. But he still secretly dug mummies. While a graduate student at the Univer...

Ulf Svante von Euler: 7 February 1905-10 March 1983.