R. D. Gillespie

A Critical Review: Narcosis Therapy.

Screening of Escherichia coli temperature-sensitive mutants by pretreatment with glucose starvation.

A system for screening Escherichia coli temperature-sensitive mutants is described. The system involves glucose starvation and minimizes ambiguities introduced by the interdependencies of macromolecular synthesis during balanced growth. The system permits the quick recognition of protein synthesis mutants and their classification into two general catagories. Complete protein synthesis mutants a...

Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity

Data gathered with the Dynamic Albedo of Neutron (DAN) instrument onboard rover Curiosity were analyzed for variations in subsurface neutron flux and tested for possible correlation with local geological context. A special DAN observation campaign was executed, in which 18 adjacent DAN active measurements were acquired every 0.75–1.0m to search for the variations of subsurface hydrogen content ...

Effect of obliteration on crater-count chronologies for Martian surfaces

[1] The density of impact craters calibrated against lunar data is currently the only quantitative measure of surface age for terrestrial planetary surfaces. Unlike the Moon, however, Mars has been weathered and eroded, obliterating some small (<10 km diameter) craters, a phenomenon addressed in the Mariner/Viking days of Mars exploration but commonly overlooked in recent studies. We present a ...

Comment on “ Nested stochastic simulation algorithm for chemical kinetic systems with disparate rates ” [ JCP 123 , 194107 ( 2005 ) ]

The slow-scale stochastic simulation algorithm (ssSSA) proposed in [J. Chem. Phys. 122, 014116 (2005)] and the nested stochastic simulation algorithm (nSSA) proposed in [J. Chem. Phys. 123,194107 (2005)] are closely related approximate simulation procedures aimed at speeding up the stochastic simulation of stiff chemical systems, i.e., systems that evolve through fast and slow dynamical modes w...