Profile of Eric D. Siggia

Quantum phases of the Shraiman-Siggia model.

We examine phases of the Shraiman-Siggia model of lightly-doped, square lattice quantum antiferromagnets in a self-consistent, two-loop, interacting magnon analysis. We find magnetically-ordered and quantum-disordered phases both with and without incommensurate spin correlations. The quantum disordered phases have a pseudo-gap in the spin excitation spectrum. The quantum transition between the ...

Eric Allen , Wanda Snead and Alan D . Cherrington Catherine

[PDF] [Full Text] [Abstract] , February 1, 2008; 294 (2): E300-E306. Am J Physiol Endocrinol Metab Cherrington Z. An, C. A. DiCostanzo, M. C. Moore, D. S. Edgerton, D. P. Dardevet, D. W. Neal and A. D. Effects of the nitric oxide donor SIN-1 on net hepatic glucose uptake in the conscious dog [PDF] [Full Text] [Abstract] , April 1, 2008; 294 (4): R1197-R1204. Am J Physiol Regulatory Integrat...

Profile of Charles D. Gilbert.

Neuroscientists once thought that the brain’s wiring was fixed in early life, but the pioneering research of National Academy of Sciences member Charles Gilbert continues to show that the adult brain is remarkably dynamic. Evidence supporting that view is presented in Gilbert and colleagues’ studies of the neural mechanisms underlying visual perception, learning, and memory. Gilbert, the Arthur...

Profile of Alexander D. Johnson.

Discussing the yeast Candida albicans, biochemist Alexander Johnson describes a resident of the human gut that can turn into a fatal pathogen in the immunocompromised. Johnson, a professor of microbiology and immunology at the University of California, San Francisco, appreciates the genetic intricacies of this eukaryote that changed his views on transcriptional regulation and the evolution of m...

Eric Kandel