ABSTRACT Nowadays, many biodegradable materials are offered for biomedical applications, but there only a few in vivo methods their detection and monitoring. In this work, implants based on polyester copolymers were labeled with indocyanine green (ICG) fluorescence imaging combination tissue optical clearing (TOC) magnetic resonance (MRI). The results include vitro degradation modeling followed by of copolymer samples that subcutaneously implanted BALB/c mice. TOC 70% glycerol has been...

Humic acid (HA) characteristics were studied in a natural revegetation chronosequence of 10-, 20-, 60-year-old and mature podzol soils under pine forest, along the spoil heaps sand quarry. The elemental composition HAs showed trend towards carbon increase hydrogen decrease with soil age. Essential differences atomic ratios between humic acids extracted from different may be due to intensity humification process as related Compared organic horizons, those mineral horizons lower C/N H/C...

Fusariotoxins (deoxynivalenol, nivalenol, T-2 toxin, diacetoxyscirpenol, zearalenone, moniliformin, fumonisins) are secondary metabolites of Fusarium species fungi that parasitize various plants or present on them as facultative pathogens. The aim this work was to evaluate the ability bacteria have antimicrobial activity against toxin-producing detoxify toxic fungal in order create additives improve quality and safety feed other agricultural products. A total 207 bacterial isolates belonging...

It’s urgent to develop benzocyclobutene (BCB)-based polymers with low curing temperatures for temperature-sensitive applications such as liquid crystal display (LCD) and flexible electronics. Herein, the effect of substituents on ring-opening behavior BCB derivatives was investigated. The activation energy barriers (ΔGA) one or two four-membered alkyl ring were systematically calculated using B3LYP function. Both mono- di-substituted BCBs adopted conrotatory process, obeying...

The report describes the shortwave propagation forecast service developed in Institute of Applied Geophysics. global network ionospheric stations is used as source input data. A software, based on model SIMP-2, assimilates data and calculates most important parameters vertical electron concentration profiles over any geographic point. In addition to this, there a possibility make short-term forecasts (up 24 hours) critical F2-layer frequency local ionospheric-station models, well long-term...

This paper presents research on the study of adsorption properties sorbents mineral and organic origin. From results, it was seen that maximum for zearalenone at room temperature 19-21 ° C pH 7 were shown by sorbents: bentonite Biklyansky deposits 34.7%, The biklyansky burned 25.3%, tarn-Varna 31.4% Mycosorb 65.7%, Phytosorb 57.5%, zeolite 27.3%, Zookarb 21.2% showed lowest sorption capacity zearalenone. In relation to T-2 toxin, a showed: 51.7%, 57.4%, 55.7%, Zoocarb 43.8%, 36.2%, fired...

Antiseptic properties of the obtained aqueous solution pine wood flame retardant with regard to 25 types micromycetes have been evaluated. In was shown that suppressed actively such species as Aspergillus terreus Thorn., Discula pinicola (Naumov) Petr., Leptographium fungi lundbergii Lagerb. & Melin, Penicillium purpurogenum Stoll., Paecilomyces variotii Bainier. The in concentration below than 3% showed average affected area for all tested groups 50.4%. Therefore, this attributed medium...

The linear accelerator Linac-200 at JINR is a new facility, constructed to provide electron test beams carry out particle detectors R&D, perform studies of advanced methods beam diagnostics, and for applied research. core the facility refurbished MEA from NIKHEF. key subsystems including controls, vacuum, precise temperature regulation were completely redesigned or deeply modernized. Two channels are available users: first one with energy in range 5–25 MeV maximum pulse current 60 mA; second...

Abstract The possibility of increasing the concentration hydrogen peroxide by using an electrolyte based on aqueous solutions sodium sulfate or potassium salts is substantiated and implemented. Limit values acidity electrochemical potential activated solution are established. obtained experimental confirmation use “Plasmolite” as a plant growth regulator.

Abstract The results of an experimental study the activation weak aqueous solutions a strong electrolyte with low-temperature glow discharge plasma are presented. A method for producing activated solution based on 0.9 % NaCl in at atmospheric pressure is main characteristics solution, including Raman spectrum wavelength λ = 514,53 nm, shown. experiments test objects give assessment effectiveness effect obtained various crops. In particular, confirmation possibility using this as plant growth...

Abstract During the works by calculation, there were grounded makeup of fuel briquettes, which are produced from oil wastes, coal and biomass - rice husk. Within changing considered makeups concentration, combustion heat values calculated, in future will allow to compare experimental characteristics briquettes with an assigned structural composition

Polychlorinated biphenyls (PCB) are persistent organic pollutants used worldwide up 1990s. Although their use has been heavily restricted, PCB can be found in contaminated soils and sediments. Conducted structural-chemical studies of the destruction polychlorinated biphenyl salts amino acids soil. The effect concentrated solutions sodium on soil particles investigated using FTIR spectroscopy as a means identifying PCBs soil, controlling interactions with acid salts. reaction products —C—...

Abstract Hydrocarbon soil pollution is widespread problem in many regions of the world, where oil extracted and transported. Pollution with crude has numerous adverse impacts on soil-microorganism-plant system. Although adding fertilizers been shown to be essential enhance remediation rate, excessive nutrients may exert toxicity for microorganisms plants. Field test was conducted area previously subjected several accidental spills central European Russia. The effects fresh pig manure and/or...

Abstract The environmental concerns related to oil extraction, transportation and refining include the pollution with heavy metals (HMs). Currently, there is a growing interest in study of an influence silicon-rich materials, including such natural minerals as diatomite, zeolite, others, on HM behavior environment regard their exploitation soil remediation strategy. In greenhouse pot experiment, effects zeolite biomass barley plants grown artificially cadmium (Cd)-contaminated Cd uptake...

Abstract The experience of studying the problem corrosive aggressiveness soils and grounds in terms improving reliability Gazprom’s pipeline systems operation is summarized presented. Soil factors causing surface corrosion gas pipelines soil conditions are studied. Based on obtained results, it was suggested to evaluate not only pipe lifetime, but also resistance metal environments. Special attention paid stress cracking formation mechanism.

Abstract Improvement of forage quality is one the essential issues to enhance livestock productivity. Bahiagrass a popular fodder plant used as pasture species and for hay production, but it lacks nutritional quality. In greenhouse experiment, effect silicon (Si) (calcium silicate amorphous dioxide) nitrogen (ammonium nitrate) supplementation on bahiagrass growth protein content was evaluated. Both types fertilizers significantly increased biomass crude in leaves bahiagrass. Higher obtained...

Abstract The paper summarizes the experience of studying effect modern warming on thawing depth sandy and loamy soils in permafrost zone. definition soil cryogenesis as a natural process facies end result is given. stress corrosion cracking gas pipes Gazprom system cold warm seasons has been studied. It was found that are interconnected by energy mass exchange. shown annual cycle, each formed basis for development pipelines.

ОЦЕНКА ТОКСИЧНОСТИ ОСАДКОВ СТОЧНЫХ ВОД БОЛЬШОГО И МАЛОГО НАСЕЛЕННЫХ ПУНКТОВ НА