First observation of nonreciprocal X-Ray gyrotropy

We report the first observation of a nonreciprocal x-ray linear dichroism caused by the time-reversal odd, real part zeta of the complex gyrotropy tensor zeta(*) which is dominated by electric dipole-electric quadrupole E1E2 interference terms. A nonreciprocal transverse anisotropy was observed in the low temperature insulating phase of a Cr doped V2O3 Mott crystal when a single antiferromagnetic domain was grown by magnetoelectric annealing along the hexagonal c axis. This new element (edge) specific spectroscopy could nicely complement x-ray magnetic circular dichroism which is silent for antiferromagnetic materials.

Stress at Work: An Evaluation of Occupational Stressors as Reported by a Multicultural New Zealand Workforce.

Occupational stress is a cause of considerable morbidity, but research on work stressors has comparatively neglected the moderating effects of gender, age, ethnicity, and occupation. A workforce of 5,467 European, Maori, Pacific Islander, and Asian employees, 40 years old or older, working for 41 companies, completed a questionnaire giving details of total stressors and subcategories of stressors. Relative risks were estimated using numbers above and below median scores. There were significant associations between increased stressors and the following [with category showing highest relative risk, and corresponding relative risk (95% confidence interval)]: male gender [job scope, 1.50(1.37,1.63)]; young age [rapport with management, 1.34(11.23,1.46)]; administrative goup [job pressure, 1.85(1.69,2.03)]; and a negative association with Pacific Islander ethnicity [rapport with management, 0.59(0.52,0.66)]. These findings indicate areas in a workforce to which stress-reduction interventions can be directed.