A Good Turn

How bad metals turn good: spectroscopic signatures of resilient quasiparticles.

We investigate transport in strongly correlated metals. Within dynamical mean-field theory, we calculate the resistivity, thermopower, optical conductivity and thermodynamic properties of a hole-doped Mott insulator. Two well-separated temperature scales are identified: T(FL) below which Landau Fermi liquid behavior applies, and T(MIR) above which the resistivity exceeds the Mott-Ioffe-Regel va...

In prone ventilation, one good turn deserves another.

The management of the acute respiratory distress syndrome (ARDS) remains daunting as we approach a half century since its description.1 Both direct and indirect insults produce acute lung injury, diffuse alveolar damage, and increased vascular permeability, with more severe involvement classified as ARDS.2 Although this suggests homogeneous injury, computed tomography clearly shows heterogeneou...

A Turn-by-turn Vertical Profile Monitor

A turn-by-turn vertical beam profile monitor has been developed at the Cornell Electron Storage Ring (CESR). The instrument optically images the vertical beam distribution with an array of optical fibers that transport visible synchrotron radiation to an array of photo-multiplier tubes. Each PMT signal is recorded by a turn-by-turn data acquisition system. With this instrument, we compare profi...

To the Framingham data, turn, turn, turn.

Bacterial Pathogenesis: When a turn off is a turn on

Pathogenic bacteria express distinct sets of genes at different stages in their life cycles; inappropriate expression of normally repressed genes during host colonization can interfere with bacterial survival.