Effect of Neutron Irradiation on the Electronic and Optical Properties of AlGaAs/InGaAs-Based Quantum Well Structures.

The effect of neutron irradiation on the structural, optical, and electronic properties of doped strained heterostructures with AlGaAs/InGaAs/GaAs and AlGaAs/InGaAs/AlGaAs quantum wells was experimentally studied. Heterostructures with a two-dimensional electron gas of different layer constructions were subjected to neutron irradiation in the reactor channel with the fluence range of 2 × 10 cm ÷ 1.2 × 10 cm.

Modified Two-Stage Split Technique for Controlled Ridge Augmentation in Horizontally Atrophic Posterior Mandible: the First Stage of Research.

Unlabelled: Various bone grafting methods are applied to eliminate horizontal atrophy of the jaws. However, problem complexity brings about ongoing research and development of new ways to achieve the predicted stable and long-term results of implantological treatment. was to evaluate the results of the developed method for bone grafting, a modified two-stage split technique for controlled ridge augmentation in horizontally atrophic posterior mandible, using radiological analysis data.

Neuropoly: An Educational Board Game to Facilitate Neurology Learning.

: Neurology is arguably one of the most difficult subjects to teach and study in the medical curriculum. Educational games (EG) may be a valid option to enhance motivation in neurology residents. : We developed an educational board game (Neuropoly) to assist in teaching neurology.

[Validation of the Russian version of the Fugl-Meyer Assessment of Physical Performance for assessment of patients with post-stroke paresis].

Objective: To perform linguistic and cultural adaptation of the Fugl-Meyer Assessment of Physical Performance.

Materials And Methods: The study for assessment of psychometric properties included 53 post-stroke patients with neurological deficit presented by hemiparesis of different severity. The patients were assessed twice: at admission and after 14 days of treatment and rehabilitation procedures.

[Rehabilitation of patients with multiple sclerosis].

Multiple sclerosis is a common cause of disability among young and middle-aged people. Despite the modern possibilities of diagnostics and therapy, over time, the disease acquires a secondary progressive character. Rehabilitation of patients at all stages of the disease plays an important role in improving well-being, improving the quality of life, adapting the patient and restoring motor skills.

TheHe nuclear magnetic relaxation in nematically ordered AlOaerogels: effects ofHe and nitrogen pre-plating.

The results ofHe gas pulsed NMR spin-lattice relaxation study in high-porosity (84.9%-97.9%) nematically ordered AlOaerogels at 1.

Anisotropic reduced diffusion in dilute liquid He-He mixture in ordered aerogel.

We report on the first observation of He diffusion anisotropy in He-He liquid mixture confined in ordered aerogels at 1.5-4.2 K temperatures.

Preservation of Bone and Soft Tissue Components of the Alveolar Ridge during Immediate Implantation in the Aesthetic Zone of Jaws with Bone Deficiency.

Unlabelled: The use of immediate implantation (directly into the extracted tooth socket) in the aesthetic zone is a rather difficult task due to the specific structural features of the bone tissue of the alveolar processes and parts of the jaw. was to develop and evaluate the efficacy of the new method of immediate implantation during restoration of teeth in the anterior part of the jaw with bone deficiency, which allows obtaining a high aesthetic result.

Materials And Methods: The clinical study involved patients with partially edentulous anterior maxillae, chronic apical periodontitis and dental root fractures in the absence of possibility to restore these teeth with orthopedic structures.

Reply to 'Comment on "Angstrom-scale probing of paramagnetic centers location in nanodiamonds by He NMR at low temperatures"' by A. Shames, V. Osipov and A. Panich, Phys. Chem. Chem. Phys. 2018, 20, DOI.

Shames et al. made a comment on our article (DOI: 10.1039/C7CP05898E) stating that their experience in EPR studies of detonation nanodiamonds suggests the existence of two main types of paramagnetic center in detonation nanodiamonds which questions our results.

[Motor learning of the post-stroke patients presenting with upper limb paresis on the mechanotherapeutic system].

Background: the relevance of this study arises from the high prevalence of upper limb motor impairment and pathological synergy in the post-stroke patients; these conditions are very difficult to correct with the use of the traditional rehabilitation methods. A promising but insufficiently studied approaches are the virtual reality (VR) technology as well as its combination with other techniques.

Aim: The objective of the present study was to evaluate the influence of the training making use of the mechanotherapeutic system on the motor function of the paretic hand.

Angstrom-scale probing of paramagnetic centers location in nanodiamonds by He NMR at low temperatures.

In this article a method to assess the location of paramagnetic centers in nanodiamonds was proposed. The nuclear magnetic relaxation of adsorbed He used as a probe in this method was studied at temperatures of 1.5-4.

[CLINICAL CASE OF COMBINATION OF PRIMARY SCLEROSING CHOLANGITIS WITH NONSPECIFIC ULCERATIVE COLITIS IN TWINS MONOZYGOTIC].

The article presents discussion of basic hypotheses of pathogenesis of primary sclerosing cholangitis (PSC): genetically conditioned pathology, autoimmune pathology, result of inflammatory reaction in bile ducts, cholangiopathy. The authors presents a clinical case of monozygotic twins with association of PSC and nonspecific ulcerative colitis (NUC). The first twin had a severe course of PSC and mild course of NUC; he died due to bacterial complications of cholangitis.

[The influence of physical training with the use of a lokomat robotic system on the walking ability of the patients with post-stroke hemiparesis].

Aim: The objective of the present study was to estimate the influence of the driven gait orthosis Lokomat on the functional mobility in the post-stroke hemiparethic patients and to elucidate the mechanisms underlying the improvement of functional mobility after the treatment.

Materials And Methods: The study included 141patients presenting with post-stroke hemiparesis of the mean duration 12.00 [3.

[Immediate implantation after extraction of teeth with chronic apical periodontitis].

The authors introduced an original method of intraoperative ozone and postoperative millimeter wave therapy which the short-term and long-term results of clinical, radiological, microbiological and immunological studies proved to enhance efficiency of immediate implantation in preliminary infected areas.

High-Tc spin superfluidity in antiferromagnets.

We report the observation of the unusual behavior of induction decay signals in antiferromagnetic monocrystals with Suhl-Nakamura interactions. The signals show the formation of the Bose-Einstein condensation (BEC) of magnons and the existence of spin supercurrent, in complete analogy with the spin superfluidity in the superfluid (3)He and the atomic BEC of quantum gases. In the experiments described here, the temperature of the magnon BEC is a thousand times larger than in the superfluid (3)He.

Spatial structure of peptides determined by residual dipolar couplings analysis.

The gated decoupled (13)C NMR spectra of a dipeptide (Glu-Trp) and a tetrapeptide (NAc-Ser-Phe-Val-Gly-OMe) were recorded in D(2)O and in a lyotropic alignment medium (pentaethylene glycol monododecyl ether/n-hexanol). The residual dipolar couplings were extracted as the differences between the observed couplings for the magnetic nuclei dissolved in the latter and former media. Using a computational optimization, the spatial structures of the compounds were calculated starting from their respective low energy conformations obtained on a semiempirical basis.

[The role of the otoneurological method in early diagnosis of multiple sclerosis].

Complete vestibulometric, audiological and otoneurological examinations were made in 48 patients with multiple sclerosis (MS). Central cochlear-vestibular syndrome was diagnosed in all the examinees. The otoneurological examination and comparison of changes in the acoustic and vestibular functions revealed specific symptoms characteristic for demyelinating disease of the central parts of the cochleovestibular analyzer.

[Vestibular cochlear disturbances in multiple sclerosis].

To specify the character of vestibular cochlear disturbances in multiple sclerosis (MS) and mechanisms of their formation, the objective quantitative evaluation of experimental caloric nystagmus using the computer electronystagmographic method and a comparison of hearing impairment with asymmetry of vestibular reactions were conducted in 48 patients with MS. The peculiarities of vestibular disturbance found in the study suggest a predominance of central vestibular syndrome with both subtentorial and supratentorial traits. The influence of the heat stimulus of vestibular analyzer (hot water caloric test) in multiple sclerosis revealed during computer electronystagmography may have diagnostic value.

A novel liquid crystalline system for partial alignment of polar organic molecules.

A new system for partial alignment of polar organic molecules to measure residual dipolar couplings in NMR consists of a 1:1 or a 2:1 mixture of water and DMSO including 3-13% n-alkylpentaethylene glycol as the surfactant. Temperature and concentration dependence of the alignment system are investigated and, as examples, the 13C,1H residual dipolar couplings for the amino acid methionine 1 and for an alpha-methylene-gamma-butyrolactone 2 have been obtained and are compared with those obtained from the alignment media consisting of n-alkylpentaethylene glycol, n-alkyl alcohol and water.

Determination of the spatial structure of glutathione by residual dipolar coupling analysis.

The approach based on analysis of the residual 1H-13C dipolar couplings in molecules partially aligned in a lyotropic liquid crystalline medium was used in the NMR investigation of the reduced glutathione (Glu-Cys-Gly; GSH) structure in a lyotropic medium (cetylpyridinium chloride-n-hexanol). The spatial structure of GSH in solution was established on the basis of the experimental data for observed couplings only.

[General approach to designing a device for artificial blood circulation].

The systems approach to constructing extracorporeal circulation equipment enhances the university of this equipment by interchangeable choice of its structure, functional parameters and constructive implementation. The authors propose to use in the extracorporeal circulation equipment two (two- and four-pump) perfusion units with two types of constructively interchangeable perfusion pumps of various capacity.

[Etiological structure and resistance to antibacterial drugs of causative agents of cross infection in Donetsk].

Tests for hemocultures were performed in 51 patients with clinical diagnoses of sepsis treated in a reanimation unit. Microbial cultures were isolated from 30 patients (58.9 per cent).