Collective Modes of Anyons Localized in 2D Anisotropic Harmonic Potential

The goal of our research is to investigate the collective modes of the anyons localized in 2D parabolic well and get the right exact expression for their collective mode frequencies. A study of the collective motion of atomic gases, localized in the harmonic trap, belongs to class of actual and interesting problems of physics of ultra-cold atomic and molecular systems. A topology of  systems allows to exist the particles, whoes statistics may be orbitrary between bosons and fermions, therefore they call anyons. And these anyons are described with parameter and may be determined in the interval between ones for bosons and fermions. The one of intriguing problem of ultra-cold atomic gases is a study of the role of the anyon statistics to the system centre mass mode frequencies

Synthesis and characterization by experimental and theory research suitable on the CdS and CdO materials

In this paper, we have compared and analyzed experimental and theoretical research on A2B6 types semiconductor materials CdS and CdO. The XRD spectra of the samples were examined using an atomic force microscope and X-ray diffraction microscopy. During film deposition, the temperature of the crucible with a source (CdS) varied in the range Tsourse ≈ 800 ÷ 850°C, and the substrate temperature was maintained within the range Tp ≈ 250 ÷ 270°C. In this case, to ensure the reproducibility of the structures, a shutter was used, with the help of which the CdS deposition time was set, which ensured that the film thickness was the same from experiment to experiment

The charge transport mechanism in a new magnetic topological insulator MnBi0.5Sb1.5Te4

A new layered magnetic topological insulator with the composition MnBi0.5Sb1.5Te4 is obtained. The electrical conductivity in the plane of the layers and in the direction normal to the layers is studied in the range of temperatures of 1.4–300 K. It is found that a “metallic” character of the temperature dependence of the resistivity ρ(T) is observed in the range of temperatures of 50–300 K in both directions. Below T = 50 K, the value of ρ increases and demonstrates an uncommon temperature dependence with a characteristic feature in the region of the critical temperature Tc = 23 K. The increase in the resistance in the temperature range of 50–23 K is determined by the spin fluctuations and magnetic phase transition. Below Tc and down to 1.4 K, ρ(T) demonstrates a behavior characteristic for the weak localization effect, which is confirmed by the analysis of the data obtained when studying magnetoresistance.This work was financially supported by the Science Development Foundation under the President of the Republic of Azerbaijan (grants nos. EİF-BGM-4-RFTF-1/2017-21/04/1-M-02, EİF/MQM/Elm-Tehsil-1-2016-1(26)-71/16/1), Russian Foundation for Basic Research (grant no. 18-52-06009), St. Petersburg State University (grant no. 73028629) as well as the Spanish Ministerio de Ciencia e Innovación Foundation (grant no. PID2019-103910GB-I00).Peer reviewe

Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study

Background Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide.Methods A multimethods analysis was performed as part of the GlobalSurg 3 study-a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital.Findings Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3.85 [95% CI 2.58-5.75]; p<0.0001), with excess mortality predominantly explained by a limited capacity to rescue following the development of major complications (63.0% vs 82.7%; OR 0.35 [0.23-0.53]; p<0.0001). Across LMICs, improvements in hospital facilities would prevent one to three deaths for every 100 patients undergoing surgery for cancer.Interpretation Hospitals with higher levels of infrastructure and resources have better outcomes after cancer surgery, independent of country income. Without urgent strengthening of hospital infrastructure and resources, the reductions in cancer-associated mortality associated with improved access will not be realised

Ways to Improve the Profession of Physical Training and Sports Specialists

This article describes the ways to improve the skills of physical education and sports professionals in training highly qualified specialist

Synthesis and characterization by experimental and theory research suitable on the CdS and CdO materials

In this paper, we have compared and analyzed experimental and theoretical research on A2B6 types semiconductor materials CdS and CdO. The XRD spectra of the samples were examined using an atomic force microscope and X-ray diffraction microscopy. During film deposition, the temperature of the crucible with a source (CdS) varied in the range Tsourse ≈ 800 ÷ 850°C, and the substrate temperature was maintained within the range Tp ≈ 250 ÷ 270°C. In this case, to ensure the reproducibility of the structures, a shutter was used, with the help of which the CdS deposition time was set, which ensured that the film thickness was the same from experiment to experiment