Vibrational spectroscopy of dynamic interactions and relaxation processes in ionic systems.

In recent years, there has been a boom in the publication of research results on ionic (electrolyte) systems used in the creation of electrochemical energy systems (batteries, supercapacitors, etc.). One of the alternative ways to obtain dynamic information in ionic systems is spectroscopic experiments, and the most valuable information on the behavior of condensed systems at picosecond and adjacent time intervals is provided by vibrational spectroscopy.

[Endoscopic vacuum therapy in minimally invasive treatment of esophageal perforations].

Objective: To compare the results of endoscopic vacuum therapy (EVT) and open surgery for esophageal perforations.

Material And Methods: The study included 60 patients with esophageal perforations between 2010 and 2022. The main group included 29 patients who underwent minimally invasive treatment with EVT, the control group - 31 patients after open surgical interventions.

Combination NIPS/TIPS Synthesis of α-FeO and α/γ-FeO Doped PVDF Composite for Efficient Piezocatalytic Degradation of Rhodamine B.

Highly porous membranes based on polyvinylidene fluoride (PVDF) with the addition of nanoscale particles of non-magnetic and magnetic iron oxides were synthesized using a combined method of non-solvent induced phase separation (NIPS) and thermo-induced phase separation (TIPS) based on the technique developed by Dr. Blade. The obtained membranes were characterized using SEM, EDS, XRD, IR, diffuse reflectance spectroscopy, and fluorescent microscopy.

[Post-intubation rupture of thoracic trachea in a patient with iatrogenic esophageal perforation and mediastinitis].

Iatrogenic injuries of the esophagus and trachea are rare. However, these are life-threatening events due to severe complications. The authors report iatrogenic perforation of cervical esophagus with a long false passage in posterior mediastinum in an 83-year-old patient undergoing endoscopic retrograde cholangiopancreatography for choledocholithiasis.

Lignin-Based Gel Polymer Electrolyte for Cationic Conductivity.

The article presents the results of the preparation and study of a gel-polymer electrolyte based on lignin obtained from . Sulfonation and subsequent chlorination of lignin make possible implementation of the principle of mono-ionic conductivity in a natural biopolymer matrix, which provides predominantly cationic conductivity of the electrolyte. Based on the results of the qualitative and quantitative analysis of the synthesized samples, the mechanisms of the chemical conversion of the biopolymer, the structure models of the converted fragments of macromolecules, as well as the quantum-chemical calculation of their electronic and geometric parameters are presented.

[Surgical treatment of spontaneous esophageal rupture: long-term experience of the Sklifosovsky Research Institute for Emergency Care].

Objective: To analyze the treatment outcomes in patients with spontaneous esophageal rupture (SER).

Material And Methods: The study included 106 patients with SER admitted to the Sklifosovsky Research Institute for the period from 1992 to 2015. The sample also included 91 patients who were referred from other hospitals.

Water-Soluble Copper Ink for the Inkjet Fabrication of Flexible Electronic Components.

The aim of this work is preparation and investigation of copper conductive paths by printing with a different type of functional ink. The solutions based on copper-containing complex compounds were used as inks instead of dispersions of metal nanoparticles. Thermal characteristics of synthesized precursors were studied by thermogravimetry in an argon atmosphere.

Research of the structure and dynamic interactions of particles in the LiKNO- R (R = α-AlO, γ-AlO, SiO) and (LiNO-LiClO) - γ-AlO composites in various temperature conditions and phase states.

The paper presents a comprehensive study of the LiKNO- R (R = α-AlO, γ-AlO, SiO) and (LiNO - LiClO4) - γ- AlO composite salt systems by vibrational spectroscopy, X-ray diffractometry, and differential scanning calorimetry. According to the results of Raman spectra and XRD analysis, it has been found that in the case of a sufficiently small filler (15 nm-γ-AlO and SiO), an amorphous phase appears, both for systems based on LiKNO and for the nanocomposite based on (LiNO)-(LiClO). In the case of nanocomposites based on the LiKNO system, this additionally leads to the formation of the metastable KNO (R3m) phase.

[Spontaneous rupture of the esophagus in a patient with chronic obstructive pulmonary disease].

A case report of successful surgical treatment of spontaneous rupture of the esophagus in a patient with chronic obstructive pulmonary disease, bronchial asthma and obesity is presented. Rupture of the esophagus occurred during a coughing without vomiting.

Publisher Correction: Ambipolar field role in formation of electron distribution function in gas discharge plasma.

A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.

Ambipolar field role in formation of electron distribution function in gas discharge plasma.

It is shown that the local approximation for electron distribution function (EDF) determination at plasma periphery, where the ambipolar field is dominant, is not applicable even at high pressures when the characteristic plasma size exceeds the energy relaxation length of the electrons R > λ . Therefore, consistent results can be obtained only when solving the complete kinetic equation in both energy and spatial variables (i.e.

Peroxy-Titanium Complex-based inks for low temperature compliant anatase thin films.

Stable highly crystalline titanium dioxide colloids are of paramount importance for the establishment of a solution-processable library of materials that could help in bringing the advantages of digital printing to the world of photocatalysis and solar energy conversion. Nano-sized titanium dioxide in the anatase phase was synthesized by means of hydrothermal methods and treated with hydrogen peroxide to form Peroxy-Titanium Complexes (PTCs). The influence of hydrogen peroxide on the structural, optical and rheological properties of titanium dioxide and its colloidal solutions were assessed and a practical demonstration of a low temperature compliant digitally printed anatase thin film given.

Self-association and picosecond dynamics in liquid dimethyl sulfoxide.

Dimethyl sulfoxide (DMSO) has been known for almost 150 years, but its properties as a solvent and reaction medium are far from being understood. In particular, association equilibriums in liquid DMSO have been characterized in just four papers, and the enthalpy of its self-association is unknown. The aims of this paper are to study self-association equilibriums in neat liquid DMSO at various temperatures by means of Raman spectroscopy, to find the enthalpy of self-association, and to solve the problem of hydrogen bonding in this liquid.

The peculiarities of spectral manifestations of high-voltage electric discharge in different phase states of ion systems.

The effects of high-voltage pulsed discharge (HVPD activation) on vibrational spectra of ion salt systems have been studied. The peculiarities of spectral display of HVPD in ion melts and aqueous solutions of electrolytes, in ion-conducting phases of crystalline and glassy salt systems have been investigated. After HVPD a salt system is in non-equilibrium activated state.

[The immune reactions by the esophagus injuries, complicated by mediastinitis].

The comparative analysis of 56 immunograms of patients with mediastinitis, caused by the esophagus trauma is represented. The mean values of 9 immunologic parameteres (the so called "norm of the pathology") were set for patients with noncomplicated mediastinitis. A novel method of the immune status evaluation for the patients with the acute surgical conditions and SIRS has been suggested.