Biomedical subjects

W G Yin

Publications and source records attributed to W G Yin.

2 recordsLinked to original sources

PubMed2001

Single hole motion in LaMnO3.

We study single hole motion in LaMnO3 using the classical approximation for Jahn-Teller lattice distortions, a modified Lang-Firsov approximation for dynamical breathing-mode phonons, and the self-consistent Born approximation (verified by exact diagonalization) for hole-orbital-excitation scattering. We show that in the realistic parameter space for LaMnO3, quantum effects of electron-phonon interaction are small. The quasiparticle bandwidth is about 2.2J in the purely orbital t-J model. It is strikingly broadened to be of order t by strong static Jahn-Teller lattice distortions even when the polaronic band narrowing is taken into account.

Journal Article↗

PubMed1991

The universality of two routines for reading: evidence from Chinese dyslexia.

A study of 11 Chinese neurological patients with reading disorders indicates that reading aloud a non-alphabetic script, like reading alphabetic scripts, can be accomplished using two distinct routines: one that associates a whole written word with its complete pronunciation, and one that utilizes parts of the written word. Each routine can be selectively impaired by brain damage, resulting in different patterns of reading disability. These data are consistent with the independent neural organization of each routine, and the generality of the two-routine model for reading alphabetic and non-alphabetic scripts.

Adult↗