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Biomedical subjects

E Fawcett

Publications and source records attributed to E Fawcett.

At least 19 recordsLinked to original sources

Strongly enhanced magnetic excitations near the quantum critical point of Cr1-xVx and why strong exchange enhancement need not imply heavy fermion behavior.

Inelastic neutron scattering reveals strong spin fluctuations with energies as high as 0.4 eV in the nearly antiferromagnetic metal Cr0. 95V0.05. The magnetic response is well described by a modified Millis-Monien-Pines function. From the low-energy response, we deduce a large exchange enhancement, more than an order of magnitude larger than the corresponding enhancement of the low-temperature electronic heat capacity gammaT. A scaling relationship between gamma and the inverse of the wave vector-averaged spin relaxation rate gammaave is demonstrated for a number of magnetically correlated metals.

Journal Article↗

Seven-month clinical outcome of anhedonic and normally hedonic depressed inpatients.

Using a measure of capacity for pleasurable experiences (the Pleasure Scale), the authors compared at admission and 7-month follow-up 74 psychiatric inpatients meeting DSM-III criteria for major depression. Pleasure scores were stable over 7 months despite the fact that two-thirds of the sample recovered from depression. The subgroup of subjects who were most anhedonic at admission were more likely than the remaining subjects to show clinical recovery but persisted in exhibiting a lower pleasure score (even when the comparison was limited to recovered subjects). Pleasure scores were much better predictors of clinical recovery than were neuroticism scores.

Adult↗