Spin-dependent current in silicon p-n junction diodes

We have used electrically detected spin-dependent paramagnetic resonance to investigate the non-equilibrium conductivity in a silicon diode. In order to create paramagnetic centers, we used diode with a polished surface (that includes p-n junction). The dependence of relative changes in the amplitude of a signal under resonance conditions and the total value of current through the diode were investigated. We have found the presence of inversion channel on the surface of p-n junction and proposed the model of the influence of spin resonance on the channel conductivity. The upper value of the time constant inherent to the spin-dependent process was determined as approximately 10⁻⁶ s . The influence of the spin-dependent process on the charge state in inversion channel has been discussed

Experience of instantaneous transaction coronary bypass surgery with carotid endarterectomy

This article describes a case of successful revascularization under artificial circulation simultaneously with carotid endarterectomy. Based on experience (89 cases with zero lethality and no central nervous system complications), it is recommended to use this treatment approach in patients with atherosclerosis of coronary and brachiocephalic arteries. The method provides good outcomes, ensures rapid rehabilitation without neurological symptoms