Numerical and analytical inspection of magnetic field effects in the radical pair mechanism by a simplified rate equation model.

The radical pair mechanism is by now the most prominent candidate for a biologically relevant quantum effect of magnetic fields. Recently, N. Ikeya and J.

Giant photon bunching, superradiant pulse emission and excitation trapping in quantum-dot nanolasers.

Light is often characterized only by its classical properties, like intensity or coherence. When looking at its quantum properties, described by photon correlations, new information about the state of the matter generating the radiation can be revealed. In particular the difference between independent and entangled emitters, which is at the heart of quantum mechanics, can be made visible in the photon statistics of the emitted light.

'Person under train' incidents from the subway driver's point of view--a prospective 1-year follow-up study: the design, and medical and psychiatric data.

Unlabelled: From the subway driver's point of view, a 'person under train' (PUT) incident is a serious life event. This study focuses on the 1-yr consequences of such events. Follow-up was made 3 wk, 3 months and 1 yr after the event.

The effect of major railway accidents on the psychological health of train drivers--II. A longitudinal study of the one-year outcome after the accident.

The psychological impact on 101 train drivers of accidents causing major injuries or death to persons was studied by means of clinical interviews and questionnaires (Impact of Event Scale, General Health Questionnaire and a questionnaire addressing stress symptoms plus past and pre accident expectancies of being involved in accidents). The drivers were examined within hours to a few days after the accident and later at 1 month and 1 year. One month after the accident the symptoms of distress were significantly reduced and most so among the drivers with no preaccident risk experience according to self reports during the acute phase.

The effect of major railway accidents on the psychological health of train drivers--I. Acute psychological responses to accident.

The acute psychological reactions of 101 train drivers to on-the-track accidents were studied by means of clinical interviews and questionnaires (Impact of Event Scale, GHQ-20 and a questionnaire addressing stress symptoms, pre-accident expectancies and worries). More than half of the train drivers reported moderate to high intrusive distress (mean 11.3) within hours to days after the accident but only 1/3 reported symptoms of acute psychophysiological arousal.