Integrated assessment of inflammatory process accompanying community-acquired pneumonia by means of radiometry

The purpose of the article is to analyze possibility of active SHF radiometry use for inflammation monitoring in lower departments of lungs. Materials and methods: Analysis of humoral immunity (cytokine, complement and immunoglobu-lin status), angiogenesis, and modifications of extracellular matrix has been made by immune-enzyme method. Serum concentration of IL-1(3, IL-1Ra, TGF-(31, C3 and C5a components of complement system and lg M, lg G, VEGF-A, ММП-13 and TIMMP-2 has been estimated in the research. Intensity of radiation of lungs has been studied. Results: Synchronism of radiation dynamics with molecular markers has been determined. The period of changes of specified mediators is about 2 days. Critical time points of pathological process (3, 6, 8, 11 and 16 days) have been found out. Conclusions: It has been proved that SHF radiation of lungs may be applied in treatment of pneumonia for pathology monitorin

Assessment of alveolar-capillary disturbances in development of severe hemodynamic pulmonary edema in rats and their correction with SHF radiation

The article presents the study on the effect of SHF radiation of 0.01-0.2-mcW/cml intensity on alveolar-capillary permeability state and rat survival with hemodynamic adrenaline pulmonary edema in vitro. Animals of different sex showed dissimilar sensitivity to edema adrenaline action and to super high frequency of SHF radiation. SHF radiation of 0,05 MW/cml is optimal from the viewpoint of its effect for the period of survival of both male and female rats, accompanied by prolongation of their life span to 59.2% and 95.5% respectively. The hypothesis of modulating action of low intensity SHF radiation on endothelial functional state has been considered. It results in rehabilitation of cardiovascular system reactivity and significant prolongation of life span

Wave kinetics of random fibre lasers

Traditional wave kinetics describes the slow evolution of systems with many degrees of freedom to equilibrium via numerous weak non-linear interactions and fails for very important class of dissipative (active) optical systems with cyclic gain and losses, such as lasers with non-linear intracavity dynamics. Here we introduce a conceptually new class of cyclic wave systems, characterized by non-uniform double-scale dynamics with strong periodic changes of the energy spectrum and slow evolution from cycle to cycle to a statistically steady state. Taking a practically important example—random fibre laser—we show that a model describing such a system is close to integrable non-linear Schrödinger equation and needs a new formalism of wave kinetics, developed here. We derive a non-linear kinetic theory of the laser spectrum, generalizing the seminal linear model of Schawlow and Townes. Experimental results agree with our theory. The work has implications for describing kinetics of cyclical systems beyond photonics

Point-contact Andreev reflection spectroscopy of a magnetic superconductor Dy₀.₆Y₀.₄Rh₃.₈₅Ru₀.₁₅B₄

The Andreev reflection spectra dI/dV(V) of the magnetic superconductor Dy₀.6Y₀.₄Rh₃.₈₅Ru₀.₁₅B₄ have been investigated. Pronounced stimulation of superconductivity by an external magnetic field has been observed for the first time. The effect showed up as enhancement of the gap structure (and hence the gap itself) in the spectra and its shift towards higher voltages with an increasing field. In the intermediate fields the structure also behaved strangely: instead of the usual smooth decrease with a grooving field, the gap features dropped abruptly near the critical point Hc₂. Of interest is also the abnormally high relative gap value 2∆/kBTc ≈ 4 (as compared to conventional singlet superconductors) which was found for some contacts from a comparison of experimental spectra and the modified Blonder–Tinkham–Klapwiyk theory. We attribute the features revealed in the point-contact spectroscopic investigations of Dy₀.6Y₀.₄Rh₃.₈₅Ru₀.₁₅B₄ in a magnetic field to the triplet-type Cooper pairing in the compound because only in this case one can expect the stimulation of superconductivity in the stationary magnetic fields up to ~ 0.7Hc₂.The Andreev reflection spectra dI/dV(V) of the magnetic superconductor Dy₀.₆Y₀.₄Rh₃.₈₅Ru₀.₁₅B₄ have been investigated. Pronounced stimulation of superconductivity by an external magnetic field has been observed for the first time. The effect showed up as enhancement of the gap structure (and hence the gap itself) in the spectra and its shift towards higher voltages with an increasing field. In the intermediate fields the structure also behaved strangely: instead of the usual smooth decrease with a grooving field, the gap features dropped abruptly near the critical point Hc₂. Of interest is also the abnormally high relative gap value 2∆/kBTc ≈ 4 (as compared to conventional singlet superconductors) which was found for some contacts from a comparison of experimental spectra and the modified Blonder–Tinkham–Klapwiyk theory. We attribute the features revealed in the point-contact spectroscopic investigations of Dy₀.₆Y₀.₄Rh₃.₈₅Ru₀.₁₅B₄ in a magnetic field to the triplet-type Cooper pairing in the compound because only in this case one can expect the stimulation of superconductivity in the stationary magnetic fields up to ~ 0.7Hc₂

. Characteristics Of Hydrogenous Body Media Self-Emission And Its Use For Identification And Monitoring Of Inflammatory Infiltrative Changes In Lower Respiratory Tract

The article based on scientific research gives the description of radio-wave investigation of infiltrative processes in the lungs. A new method of studies - trance-resonant functional topography - has been used. Some new diagnostical criteria for identification and specification of infiltrative disease of thorax have been presented and some problems of diagnostics of inflammatory infiltrative changes of lower respiratory tract (pneumonia, sarcoidosis and lung cancer) have been solve

Synthesis of oligomeric epoxycyclotriphosphazenes and their properties as reactive flame-retardants for epoxy resins

Hydroxyaryloxycyclophosphazenes containing 2–4 OH groups have been synthesized by the substitution of chlorine atoms of hexachlorocyclotriphosphazene via the reaction with sodium phenolates of halogenophenols followed by the interaction with sodium monophenolate of diphenylolpropane. Oligoepoxyphosphazenes (OEPs) with molecular masses up to 2000 and the contents of epoxy groups, phosphorus, and halogens atoms about 5–8, 5–8, and 5–11%, respectively, have been obtained via the interaction of the aforementioned phosphazenes with epichlorohydrin. The curing of the OEPs with amines or acid anhydrides gives rise to the formation of self-extinguishing composites. The incorporation of the OEPs (5–75 wt %) into commercial epoxy resins followed by their curing, results in the formation of composites with excellent nonflammability or capability of self-quenching, and good dielectric, heat resistant and mechanical properties. It has been established that mixtures of common epoxides with different amounts of the OEPs can be synthesized by a “single-reactor” method. © 2017 Taylor & Francis Group, LLC

Synthesis of oligomeric epoxycyclotriphosphazenes and their properties as reactive flame-retardants for epoxy resins

Hydroxyaryloxycyclophosphazenes containing 2–4 OH groups have been synthesized by the substitution of chlorine atoms of hexachlorocyclotriphosphazene via the reaction with sodium phenolates of halogenophenols followed by the interaction with sodium monophenolate of diphenylolpropane. Oligoepoxyphosphazenes (OEPs) with molecular masses up to 2000 and the contents of epoxy groups, phosphorus, and halogens atoms about 5–8, 5–8, and 5–11%, respectively, have been obtained via the interaction of the aforementioned phosphazenes with epichlorohydrin. The curing of the OEPs with amines or acid anhydrides gives rise to the formation of self-extinguishing composites. The incorporation of the OEPs (5–75 wt %) into commercial epoxy resins followed by their curing, results in the formation of composites with excellent nonflammability or capability of self-quenching, and good dielectric, heat resistant and mechanical properties. It has been established that mixtures of common epoxides with different amounts of the OEPs can be synthesized by a “single-reactor” method. © 2017 Taylor & Francis Group, LLC