The ways to improve the energy conversion efficiency in erbium-doped Gd 2 O 3 nanoparticles

The basic requirements for the crystal lattice and defectiveness of Gd 2 O 3 matrix as well as for the concentration of Er 3+ dopants to achieve the enhanced parameters of energy conversion in Gd 2 O 3 :Er nanoparticles are summarized. The obtained data allow to optimize and improve the functional characteristics of Gd 2 O 3 :Er-based down-conversion layers applying in solar cells. © 2018 Institute of Physics Publishing. All rights reserved.The work has been funded by the Ministry of Education and Science of the Russian Federation (Government task №3.1485.2017/4.6)

Assessment of Seroprevalence to SARS-CoV-2 in Various Population Cohorts Using Logit Regression Models During Initial Period of Herd Immunity Formation

The aim of the study was to assess the dynamics of seroprevalence to SARS-CoV-2 in various population groups during the initial period of herd immunity formation based on multivariate analysis using logit regression models.Materials and methods. The study involved 1561 individuals divided into three population cohorts: people living with HIV/AIDS (PLHA), healthy blood donors, medical workers. The presence of antibodies to SARS-CoV-2 was determined in blood serum through ELISA using commercial reagent kits. Multivariate analysis of the dynamics of seroprevalence to SARS-CoV-2 was carried out using logistic regression models.Results and discussion. It has been revealed that probability of detecting IgG antibodies to SARS-CoV-2 significantly increased among the donors and medical workers in the spring-autumn 2020 series (p=0.005 и p<0.001, respectively), which corresponds to seroprevalence shift in the general population. Groups of donors and medical workers can be considered as indicator groups that characterize the herd immunity in reference to SARS-CoV-2, as well as the intensity of COVID-19 epidemic process. Seroprevalence to SARS-CoV-2 in PLHA group was at a consistently high level throughout the observation period. The generated logistic regression models made it possible to determine the trends in the development of the epidemic situation based on multifactorial analysis of the dynamics of seroprevalence to SARS-CoV-2

Prospects of implementing integrated information systems in the preferential drug provision of patients with copd on the territory of Sverdlovsk region

Analysis of prospects of implementation and functionality of information systems in preferential drug provision, a review of the regulatory framework in the system of preferential provision of medicines.Анализ перспективы внедрения и функциональных возможностей информационных систем в льготном лекарственном обеспечении, обзор нормативной базы в системе льготного лекарственного обеспечения

ВОЗМОЖНОСТИ КОМПЛЕКСНОГО УЛЬТРАЗВУКОВОГО ИССЛЕДОВАНИЯ В ДООПЕРАЦИОННОМ СТАДИРОВАНИИ ДИССЕМИНИРОВАННОГО РАКА ЯИЧНИКОВ

The aim of the study was to compare the efficacy of the optimized ultrasound technique with the use of additional methods (change in the patient’s body position, forced type of breath and abdominal scanning with high-frequency probes) for assessing the preoperative staging in 47 patients with primary epithelial ovarian cancer. It was shown that the optimized ultrasound technique, especially in cases with low-volume ascites, allowed improvement in preoperative staging of ovarian cancer, with sensitivity of 87%. Проведена сравнительная оценка эффективности разработанной оптимизированной методики УЗИ с применением дополнительных приёмов (с переменой положения тела пациентки, с форсированным типом дыхания и сканированием брюшной полости линейным датчиком высоких частот) в оценке дооперационного стадирования у 47 больных с первичным диагнозом эпителиального рака яичников. Показано, что оптимизированная методика УЗИ, особенно при минимальном количестве асцитической жидкости, позволяет с чувствительностью метода 87 % повысить эффективность дооперационного стадирования рака яичнико

OPTICAL PROPERTIES OF SOLID SOLUTIONS Gd2O3-Y2O3

In this paper, the role of the quantitative composition of solid solutions of Gd2O3-Y2O3 in the formation of the luminescent properties of Gd3+ ions was investigated by optical spec-troscopy. The main goal was to study the luminescence behavior of Gd2O3-Y2O3 under various types of excitation. Samples of Gd2O3-Y2O3 nanoparticles with different compositions were obtained by chemical precipitation from hydroalcoholic solutions

DIAGNOSTIC VALUE OF ULTRASOUND EXAMINATION IN PREOPERATIVE STAGING OF DISSEMINATED OVARIAN CANCER

The aim of the study was to compare the efficacy of the optimized ultrasound technique with the use of additional methods (change in the patient’s body position, forced type of breath and abdominal scanning with high-frequency probes) for assessing the preoperative staging in 47 patients with primary epithelial ovarian cancer. It was shown that the optimized ultrasound technique, especially in cases with low-volume ascites, allowed improvement in preoperative staging of ovarian cancer, with sensitivity of 87%

THE BASIC AGENTS OF PYOINFLAMMATORY COMPLICATIONS IN PATIENTS WITH KIDNEY DISEASE FROM THE DEPARTMENT OF RESUSCITATION AND INTENSIVE THERAPY REGIONAL CLINICAL HOSPITAL № 1

Is carried out the analysis of the frequency of the development of different agents of pyoinflammatory complications in patients with the nefrologicheskimi diseases from the department of anasteziologo – resuscitation of Regional Clinical Hospital № 1 within the period s 2013 on 2015 the yr. In the time of a study it was identified 902 the culture of the agents more than 30 species. Among them gram-negative bacteria composed 42,1 %, gram-positive – 38,8 % and 19,1 % from all agents there were yeasts of the genus Candida. More frequent than others were separated the enterococcuses: 171 strains of Enterococcus faecalis, 150 of strains E. faecium and 148 cultures Klebsiella pneumoniae