B. Oosterwijk, Reder in Rotterdam. Willem Ruys (1809-1889)

Metabolic Control Analysis: Rereading Reder

Metabolic control analysis is a biochemical formalism defined by Kacser and Burns in 1973, and given firm mathematical basis by Reder in 1988. The algorithm defined by Reder for calculating the control matrices is still used by software programs today, but is only valid for some biochemical models. We show that, with slight modification, the algorithm may be applied to all models.

Crj20086 1801..1809

Grass degradability declines as cell wall and lignin concentrations increase during maturation. The role of tissue development and lignification in decline of stem degradability was examined in maize (Zea mays L.) internodes sampled at 10 stages of growth from early elongation through plant physiological maturity. The fourth elongated internode above ground level was collected from three maize ...

Willem Blok and Modal Logic

We present our personal view on W.J. Blok’s contribution to modal logic.

EG J 1809 − 2328 Mallory

We report the discovery of a partial ∼ 2 diameter non-thermal radio shell coincident with Taz, the pulsar wind nebula (PWN) in the error box of the apparently variable γ-ray source 3EG J1809−2328. We propose that this radio shell is a newly identified supernova remnant (SNR G7.5−1.7) associated with the PWN. The SNR surrounds an amorphous region of thermal X-rays detected in archival ROSAT and ...

Willem A . de Graaf