Kinetic of Sorption of Scandium and Impurities from Hydrolisis Sulfuric Acid by Cation-Exchanger Purolite S957

The kinetic of sorption of Sc, Zr, Al, Th, Ti and Fe from the hydrolysis sulfuric acid by using the cation-exchanger Purolite S957 was investigated. The limiting stage of sorption of all elements was diffusion inside resin grain

KINETIC OF SCANDIUM AND IMPURITIES SORPTION DURING RECOVERY FROM HYDROLISIS SULFURIC ACID AFTER TITANIUM DIOXIDE PRODUCTION

The kinetics of sorption of scandium, iron, thorium, titanium, zirconium, and aluminum by ion-exchanger Tulsion Ch 93 during recovery from hydrolysis sulfuric acid after titanium dioxide production was investigated. It was revealed that sorption of Sc, Al, Ti, Th, Zr took place in the internal diffusion mode, and iron sorption was carried out in the mixed-diffusion mode.Работа выполнена при финансовой поддержке Минобрнауки России, соглашение о предоставлении субсидии от 26.09.2017 г. № 14.575.21.0137 (уникальный идентификатор соглашения RFMEFI57517X0137), в рамках ФЦП “Исследования и разработки по приоритетным направлениям развития научно-технологического комплекса России на 2014–2020 годы”

НОВЫЕ ГОРИЗОНТЫ ФИЛОСОФИИ ОБРАЗОВАНИЯ В АНАЛИЗЕ ПРОБЛЕМ УПРАВЛЕНИЯ ОБРАЗОВАНИЕМ В УСЛОВИЯХ ГЛОБАЛИЗИРУЮЩЕГОСЯ МИРА

The article explores theory and methodology of certain achievements and possible prospects of national education philosophy de-velopment on the issues of education policy and education management at the national and global levels of public organiza-tion in the context of accelerating the processes of globalization in the 21st century. The basis of conceptual approach to problem solving is the ideas of the noosphere developed by V. I. Vernadsky, which allow defining the strategies of modern educational policy, as well as the specifics of social management of noospheric education at the state and international levels at the be-ginning of the XXI century.В статье осуществлен теоретико-методологический анализ определенных достижений и возможных перспектив развития отечественной философии образования по вопросам образовательной политики и управления образованием на государственном и глобальном уровнях общественной организации в условиях ускорения процессов глобализации в XXI в. Основу концептуального подхода к решению проблем составляют идеи ноосферы В. И. Вернадского, позволяющие определить стратегии современной образовательной политики, а также специфику социального управления ноосферным образованием на государственном и международном уровнях в начале XXI в

Cardiorespiratory Phase-Coupling Is Reduced in Patients with Obstructive Sleep Apnea

Cardiac and respiratory rhythms reveal transient phases of phase-locking which were proposed to be an important aspect of cardiorespiratory interaction. The aim of this study was to quantify cardio-respiratory phase-locking in obstructive sleep apnea (OSA). We investigated overnight polysomnography data of 248 subjects with suspected OSA. Cardiorespiratory phase-coupling was computed from the R-R intervals of body surface ECG and respiratory rate, calculated from abdominal and thoracic sensors, using Hilbert transform. A significant reduction in phase-coupling was observed in patients with severe OSA compared to patients with no or mild OSA. Cardiorespiratory phase-coupling was also associated with sleep stages and was significantly reduced during rapid-eye-movement (REM) sleep compared to slow-wave (SW) sleep. There was, however, no effect of age and BMI on phase coupling. Our study suggests that the assessment of cardiorespiratory phase coupling may be used as an ECG based screening tool for determining the severity of OSA

DEPOSITION OF URANIUM FROM PRODUCTIVE SOLUTIONS OBTAINED BY HYDROLIC ACID LEACHING OF URANIUM-CONTAINING SLUDGE

The precipitation process has carried out with ammonia by a semi-continuous method at pH 6.9-7.0, temperature 45-50 °C from a productive solution (278 mgL-1 U, 60 gL-1 HCl). The precipitate is an amorphous structure and represented by one phase - CaF2, the mass fraction of uranium was 0.73%

PHYSICAL AND CHEMICAL CHARACTERISTICS OF THE INSOLUBLE RESIDUE OF HYDRANIC ACID LEACHING OF URANIUM FROM SLUDGE

Leaching of sludge by solutions of 120-160 gL-1 HCl at 80 °C provides a decrease in the mass of insoluble residue in 2-3 times. The moisture content is 12-26% the average particle diameter is 60-100 μm. The insoluble residue consists of CaSO4*2H2O, CaF2, graphite and two modifications of SiO2

KINETIC OF SORPTION OF SCANDIUM AND IMPURITIES FROM HYDROLISIS SULFURIC ACID BY AMPHOLYTE PUROLIE S950

The kinetic of sorption of Sc, Zr, Al, Th, Ti and Fe from the hydrolysis sulfuric acid by using ampholyte Purolite S950 was investigated. The limiting stage of sorption of Sc and Zr was internal diffusion, and the sorption of Ti, Al, Fe and Th was carried out in a mixed-diffusion mode

Quantitative assessment of renal perfusion and oxygenation by invasive probes: basic concepts

Renal tissue hypoperfusion and hypoxia are early key elements in the pathophysiology of acute kidney injury of various origins, and may also promote progression from acute injury to chronic kidney disease. Here we describe basic principles of methodology to quantify renal hemodynamics and tissue oxygenation by means of invasive probes in experimental animals. Advantages and disadvantages of the various methods are discussed in the context of the heterogeneity of renal tissue perfusion and oxygenation.This chapter is based upon work from the COST Action PARENCHIMA, a community-driven network funded by the European Cooperation in Science and Technology (COST) program of the European Union, which aims to improve the reproducibility and standardization of renal MRI biomarkers. This introduction chapter is complemented by a separate chapter describing the experimental procedure and data analysis

Building a transdisciplinary expert consensus on the cognitive drivers of performance under pressure: An international multi-panel Delphi study

IntroductionThe ability to perform optimally under pressure is critical across many occupations, including the military, first responders, and competitive sport. Despite recognition that such performance depends on a range of cognitive factors, how common these factors are across performance domains remains unclear. The current study sought to integrate existing knowledge in the performance field in the form of a transdisciplinary expert consensus on the cognitive mechanisms that underlie performance under pressure.MethodsInternational experts were recruited from four performance domains [(i) Defense; (ii) Competitive Sport; (iii) Civilian High-stakes; and (iv) Performance Neuroscience]. Experts rated constructs from the Research Domain Criteria (RDoC) framework (and several expert-suggested constructs) across successive rounds, until all constructs reached consensus for inclusion or were eliminated. Finally, included constructs were ranked for their relative importance.ResultsSixty-eight experts completed the first Delphi round, with 94% of experts retained by the end of the Delphi process. The following 10 constructs reached consensus across all four panels (in order of overall ranking): (1) Attention; (2) Cognitive Control—Performance Monitoring; (3) Arousal and Regulatory Systems—Arousal; (4) Cognitive Control—Goal Selection, Updating, Representation, and Maintenance; (5) Cognitive Control—Response Selection and Inhibition/Suppression; (6) Working memory—Flexible Updating; (7) Working memory—Active Maintenance; (8) Perception and Understanding of Self—Self-knowledge; (9) Working memory—Interference Control, and (10) Expert-suggested—Shifting.DiscussionOur results identify a set of transdisciplinary neuroscience-informed constructs, validated through expert consensus. This expert consensus is critical to standardizing cognitive assessment and informing mechanism-targeted interventions in the broader field of human performance optimization

Ondansetron prevents changes in respiratory pattern provoked by LiCl: A new approach for studying pro-emetic states in rodents?

There are a limited number of biological indices for assessing pro-emetic states in laboratory rodents as they do not possess the vomiting response. In the present study we tested the hypothesis that in rats, pro-emetic intervention would affect the respiratory pattern. To this end, using whole-body plethysmography, in adult male Wistar rats we recorded respiration after i.p. administration of either the emetic agent LiCl or Ringer. Quantification of respiratory signals (from 5 to 35 min post-injection) revealed that post-LiCl, mean respiratory rate was significantly lower (126 ± 9 vs. 178 ± 10 cpm, p 200 cpm) from 25 ± 3% to 9 ± 2% (p = 0.004). Thus, reduction of the mean respiratory rate by LiCl was predominantly due to reduced contribution of high-frequency breathing that is normally associated with motor activity and/or arousal. Non-linear multifractal analysis of respiratory signals revealed that post-LiCl, respiration becomes less random and more orderly. 5-HT3 antagonist ondansetron prevented respiratory changes elicited by LiCl. We conclude that the observed changes likely reflect effects of LiCl on animals' motion, and that this effect is mediated via 5-HT3 receptors. Providing that the effects observed in our study were quite robust, we suggest that simple and non-invasive respiratory monitoring may be a promising approach for studying emesis in rodents.S. Ngampramuan, M. Baumert, B. Czippelova and E. Nalivaik