Outstanding Radiation Tolerance of Supported Graphene: Towards 2D Sensors for the Space Millimeter Radioastronomy.

We experimentally and theoretically investigated the effects of ionizing radiation on a stack of graphene sheets separated by polymethyl methacrylate (PMMA) slabs. The exceptional absorption ability of such a heterostructure in the THz range makes it promising for use in a graphene-based THz bolometer to be deployed in space. A hydrogen/carbon ion beam was used to simulate the action of protons and secondary ions on the device.

[Prospects for stimulation in early rehabilitation of patients and restoration of bowel function after proctological operations].

Relevance: The leveling of postoperative pain, early activation of patients are the leading components of the fast-track program, providing fast recovery with good quality of life, minimizing postoperative problems. In colorectal surgery, the most important factor determining the early recovery of patients is the normalization of bowel function, the restoration of defecation rhythm.

Aim: To assess the possibility of using dietary fiber (arabinogalactan) in combination with lactoferrin (the drug Fibraxin, Alfa Sigma) in the complex postoperative therapy of proctologic patients, as well as to determine the effectiveness of their influence on the dynamics of rehabilitation.

[Experience of using an individual approach in the anal fissures treatment].

Aim: To objectify the criteria for choosing the method of treatment of anal fissures, to determine the indications for surgery and sphincterotomy.

Material And Methods: The results of treatment of 206 patients with chronic and acute anal fissures between the ages of 17 to 75 years are analyzed. The posterior anal fissure was detected in 175 (84.

The ADRON-RM Instrument Onboard the ExoMars Rover.

This overview presents the physical principles, design, measurement capabilities, and summary of planned operations of the autonomous detector of radiation of neutrons onboard rover at Mars (ADRON-RM) on the surface of Mars. ADRON-RM is a Russian project selected for the joint European Space Agency-Roscosmos ExoMars 2020 landing mission. A compact passive neutron spectrometer, ADRON-RM, was designed to study the abundance and distribution of water and neutron absorption elements (such as Cl, Fe, and others) in the martian subsurface along the path of the ExoMars rover.

A comparative study of LaBr3(Ce(3+)) and CeBr3 based gamma-ray spectrometers for planetary remote sensing applications.

The recent availability of large volume cerium bromide crystals raises the possibility of substantially improving gamma-ray spectrometer limiting flux sensitivities over current systems based on the lanthanum tri-halides, e.g., lanthanum bromide and lanthanum chloride, especially for remote sensing, low-level counting applications or any type of measurement characterized by poor signal to noise ratios.