Manifestation of plasmonic response in the detection of sub-terahertz radiation by graphene-based devices.

We report on the sub-terahertz (THz) (129-450 GHz) photoresponse of devices based on single layer graphene and graphene nanoribbons with asymmetric source and drain (vanadium and gold) contacts. Vanadium forms a barrier at the graphene interface, while gold forms an Ohmic contact. We find that at low temperatures (77 K) the detector responsivity rises with the increasing frequency of the incident sub-THz radiation.

Nonlinear response of infrared photodetectors based on van der Waals heterostructures with graphene layers.

We report on the device model for the infrared photodetectors based on the van der Waals (vdW) heterostructures with the radiation absorbing graphene layers (GLs). These devices rely on the electron interband photoexcitation from the valence band of the GLs to the continuum states in the conduction band of the inter-GL barrier layers. We calculate the photocurrent and the GL infrared photodetector (GLIP) responsivity at weak and strong intensities of the incident radiation and conclude that the GLIPs can surpass or compete with the existing infrared and terahertz photodetectors.

[A case of respiratory distress syndrome complicated by the development of interstitial emphysema and pneumomediastinum].

A 15-year-old patient has been admitted to the intensive care unit for severe respiratory distress syndrome that developed as a result of pneumonia. Interstitial lung edema was confirmed by computer-aided tomography. It was successfully treated by positive pressure ventilation (PPV).

[Comparative experimental study of various methods of photomodification++ of the blood].

An experimental analysis of various methods of photomodification of blood has shown that their use in medical practice has principle possibility to obtain effects of various directions at the expense of variation of blood irradiation regimens. UV radiation brings about processes of lipid peroxidation in plasma membrane of lymphocytes, their intensity depends on the presence of oxygen in the surroundings.

[Photomodification of autologous blood and hemosorption in suppurative and septic diseases].

An investigation of the concentration of middle-molecule peptides in the blood, blood viscosity and esterase activity in patients with pyo-septic diseases who were treated by using photomodification of autoblood and hemosorption has substantiated expedience of the successive use of the methods of extracorporal hemocorrection for prophylactics of possible complications and to increase the detoxicating effect of hemosorption.