Building on Springs

[university of Colorado at Colorado Springs,colorado Springs, Colorado]

Koopmans' springs to life.

The meaning of orbital energies (OOEs) in Kohn-Sham (KS) density functional theory (DFT) is subject to a longstanding controversy. In local, semilocal, and hybrid density functionals (DFs) a Koopmans' approach, where OOEs approximate negative ionization potentials (IPs), is unreliable. We discuss a methodology based on the Baer-Neuhauser-Livshits range-separated hybrid DFs for which Koopmans' a...

VWF springs into action

The Geneva group had earlier found factors linking transcription activation to the nuclear pore. They now use a nuclease fused to a nuclear pore protein, which clips any DNA that comes to the nuclear pore for a visit. The regions preferentially cleaved by the nuclease were just upstream of 40% of genes on chromosome VI. Constitutively expressed genes use different promoter elements and may not ...

The Springs of Creativity

it is at once evident that the author endeavours to answer the ancient questions: "What is Art? What is Man?" To achieve this goal he pursues innumerable fields of study and first directs his efforts to the Old and New Testament. He views these stories as epics written by poets. With the help of numerous quotations from the Bible and from elsewhere he convinces us that we are dominated by the O...

Surging in Coil Springs