Uzhhorod National University

About: Uzhhorod National University is a education organization based out in Uzhhorod, Ukraine. It is known for research contribution in the topics: Raman spectroscopy & Laser. The organization has 1089 authors who have published 1056 publications receiving 5187 citations. The organization is also known as: State Higher Education Establishment "Uzhhorod National University" & Uzhhorod State University.

Influence of intrinsic point defects and antimony impurity on the electronic structure and photoelectric properties of tin monosulfide

Abstract: The electronic structure calculations of defect-free tin monosulfide SnS as well as SnS with existing intrinsic point defects (vacancies in tin (VSn) and sulfur (VS) sublattices), substitutional impurity atoms SbSn and complexes of {VSn–SbSn} type were performed using ab initio density functional theory method in the supercell model. The temperature dependence of stationary photoconductivity and spectral distribution of photosensitivity of SnS crystals doped by antimony were measured in the temperature range of 100–400 K. The results of non-empirical calculations enabled us to analyze the influence of defect formation processes on the macroscopic properties of SnS crystals. It is shown that Sb impurity improves the photoelectric characteristics of SnS crystals.

Kallistatin level in patients with combination of chronic pancreatitis and aterosclerosis.

Abstract: Objective Introduction: The article is devoted to the optimization of complex diagnosis in patients with combination of chronic pancreatitis and atherosclerosis. The aim: To study the level of serum kallistatin in patients with combination of chronic pancreatitis and atherosclerosis. Patients and methods Materials and methods: 89 patients with chronic pancreatitis were examined. The serum kallistatin level was determined by immunoassay using the Human Serpin A4 ELISA Kit from RayBiotech according to the application method. To determine the excretory pancreatic insufficiency all patients underwent 13C-amylase and 13C-mixed triglyceride breathing tests. Results Results: Analysis of the study results showed that patients with less severe excretory pancreatic insufficiency and lipid profile disorders had higher kallistatin level than the control group (33.66±4.55 ng/ml). Instead, in patients with severe excretory pancreatic insufficiency and dyslipidemia, it was significantly lower - 14.69±9.21 ng/ml. Conclusion Conclusions: The interrelation between the severity of the chronic pancreatitis course with atherosclerosis and the serum kallistatin level was observed. It has been established that studies of serum kallistatin level can serve as a marker of the chronic pancreatitis` severity in combination with atherosclerosis.

Formation of argon fluoride molecules under interaction of an argon plasma flow with potassium fluoride and sulfur hexafluoride vapors

Abstract: The formation of argon fluoride molecules in plasma-dynamic jets of argon-potassium fluoride vapor and argon-sulfur hexafluoride vapor mixtures is investigated. The intensity of the ArF* luminescence band at 193 nm versus the argon and sulfur hexafluoride flow rates, pump power, and distance from the nozzle is studied.