bluuebunny/crossref_metadata_2025 huggingface dataset:
Decay stages of wood and associated fungal communities characterise diversity–decomposition relationships
Authors: Fukasawa Yu , Matsukura Kimiyo
Published: April 2021

The biodiversity–ecosystem function relationship is a central topic in ecology. Fungi are the dominant decomposers of organic plant material in terrestrial ecosystems and display tremendous species diversity. However, little is known about the fungal diversity–decomposition relationship. We evaluated fungal community assemblies and substrate quality in different stages of wood decay to assess the relationships between fungal species richness and weight loss of wood substrate under laboratory conditions. Wood-inhabiting fungal communities in the early and late stages of pine log decomposition were used as a model. Colonisation with certain species prior to inoculation with other species resulted in four-fold differences in fungal species richness and up to tenfold differences in the rate of wood substrate decomposition in both early- and late-decaying fungal communities. Differences in wood substrate quality had a significant impact on species richness and weight loss of wood and the relationships between the two, which were negative or neutral. Late communities showed significantly negative species richness–decay relationships in wood at all decay stages, whereas negative relationships in early communities were significant only in the intermediate decay stage. Our results suggest that changes in fungal communities and wood quality during wood decomposition affect the fungal diversity–decomposition relationship.
Progeny fitness determines the performance of the parasitoid Therophilus javanus, a prospective biocontrol agent against the legume pod borer
Authors: Aboubakar Souna Djibril , Bokonon-Ganta Aimé Hippolyte , Ravallec Marc , Alizannon Mesmin , Srinivasan Ramasamy , Pittendrigh Barry Robert , Volkoff Anne-Nathalie , Tamò Manuele
Published: April 2021

Therophilus javanus (Bhat & Gupta) is an exotic larval endoparasitoid newly imported from Asia into Africa as a classical biological control agent against the pod borer Maruca vitrata (Fabricius). The parasitoid preference for the five larval instars of M. vitrata and their influence on progeny sex ratio were assessed together with the impact of larval host age at the time of oviposition on development time, mother longevity and offspring production. In a choice situation, female parasitoids preferred to oviposit in the first three larval instars. The development of immature stages of the parasitoid was observed inside three-day-old hosts, whereby the first two larval instars of T. javanus completed their development as endoparasites and the third larval instar as ectoparasite. The development time was faster when first larval instars (two- and three-day-old) of the host caterpillars were parasitized compared to second larval instar (four-day-old). The highest proportion of daughters (0.51) was observed when females were provided with four-day-old hosts. The lowest intrinsic rate of increase (r) (0.21 ± 0.01), the lowest rate of increase (λ) (1.23 ± 0.01), and the lowest net reproductive rate (Ro) (35.93 ± 6.51) were recorded on four-day-old hosts. These results are discussed in the light of optimizing mass rearing and release strategies.
In vivo micro computed tomography detection and decrease in amyloid load by using multifunctionalized gold nanorods: a neurotheranostic platform for Alzheimer's disease
Authors: Morales-Zavala Francisco , Jara-Guajardo Pedro , Chamorro David , Riveros Ana L. , Chandia-Cristi America , Salgado Nicole , Pismante Paola , Giralt Ernest , Sánchez-Navarro Macarena , Araya Eyleen , Vasquez Rodrigo , Acosta Gerardo , Albericio Fernando , Alvarez R Alejandra , Kogan Marcelo J.
Published: April 2021

The development and use of nanosystems is an emerging strategy for the diagnosis and treatment of a broad number of diseases, such as Alzheimer's disease (AD).
Impact of iodine loading and substitution position on intersystem crossing efficiency in a series of ten methylated-meso-phenyl-BODIPY dyes
Authors: Ly Jack T. , Presley Kayla F. , Cooper Thomas M. , Baldwin Luke A. , Dalton Matthew J. , Grusenmeyer Tod A.
Published: April 2021

Ten methylated-meso-phenyl-BODIPY dyes with varying iodine content were synthesized and studied using experimental and theoretical methods to examine how iodine substitution and loading influence the excited-state dynamics of the chromophores.
Amorphous solid dispersions in poly(ε-caprolactone)/xanthohumol bioactive blends: physicochemical and mechanical characterization
Authors: Sánchez-Aguinagalde Oroitz , Meaurio Emilio , Lejardi Ainhoa , Sarasua Jose-Ramon
Published: April 2021

This paper reports the obtention of amorphous solid dispersions (ASDs) of xanthohumol (XH) in PCL containing up to 50 wt% of the bioactive compound in the amorphous form thanks to the advantageous specific interactions established in this system.
Refining the band structure of BiOBr nanosheets through the synergetic effect of VO43− ions replacement and oxygen vacancies for promoted visible-light-driven photocatalysis
Authors: Wang Lulu , Zhao Changming , Xiang Zhengrong , Zhang Yi , Ma Nan , Shen Jie , Peng Xiahui , Zhang Shiying , Li Zhongfu , Wu Zhaohui
Published: April 2021

The band structure of BiOBr nanosheets is regulated by the oxygen vacancies and VO43− ions replacement. The BiOBr nanosheets possess defective states and a more negative conduction band potential, promoting visible-light photocatalytic activity.
Cobalt phosphide nanowires with adjustable iridium, realizing excellent bifunctional activity for acidic water splitting
Authors: Tong Yun , Chen Pengzuo
Published: April 2021

A dramatic improvement in the bifunctional performance of CoP material was realized utilizing a low amount of iridium as an effective dopant, presenting superior catalytic activity for overall water splitting in acidic medium.
Regeneration of LiFePO4 from spent lithium-ion batteries via a facile process featuring acid leaching and hydrothermal synthesis
Authors: Song Yifan , Xie Boyi , Song Shaole , Lei Shuya , Sun Wei , Xu Rui , Yang Yue
Published: April 2021

LiFePO4 has been regenerated from spent lithium-ion batteries via a facile process involving acid leaching and hydrothermal synthesis.
Third-order nonlinear optical properties of axially modified indium phthalocyanines with alkyl chains
Authors: Chen Lan , He Chunying , Liu Dongmei , Zheng Yi , Li Wanlu , Zu Yanli
Published: April 2021

Novel axially substituted indium phthalocyanine with strong NLO properties: effects of the length of the alkyl chain.
Prussian blue as a co-catalyst for enhanced Cr(vi) photocatalytic reduction promoted by titania-based nanoparticles and aerogels
Authors: Ferreira-Neto Elias Paiva , Ullah Sajjad , Perissinotto Amanda Pasquoto , de Vicente Fábio S. , Ribeiro Sidney José Lima , Worsley Marcus Andre , Rodrigues-Filho Ubirajara Pereira
Published: April 2021

A nanostructured Prussian blue layer deposited on titania-based materials acts as an efficient electron acceptor/mediator greatly enhancing Cr(vi) photocatalytic reduction.
Merging CF3SO2Na photocatalysis with palladium catalysis to enable decarboxylative cross-coupling for the synthesis of aromatic ketones at room temperature
Authors: Xie Pan , Xue Cheng , Wang Cancan , Du Dongdong , Shi SanShan
Published: April 2021

By merging CF3SO2Na-mediated photocatalysis with palladium catalysis, an efficient decarboxylative coupling strategy of α-keto acids and aryl boronic acids has been developed for the synthesis of aromatic ketones.
Palladium-catalyzed gaseous CO-free carbonylative C–C bond activation of cyclobutanones
Authors: Song Kun-Long , Wu Bin , Gan Wan-Er , Yang Wan-Chun , Chen Xiao-Bing , Cao Jian , Xu Li-Wen
Published: April 2021

A palladium-catalyzed carbonylative C–C bond activation reaction of cyclobutanones is reported, and it affords a variety of indanones bearing ester or amide groups using phenyl formate and benzene-1,3,5-triyl triformate as CO surrogates.
Release of methane from nanochannels through displacement using CO2
Authors: Cheng Xu , Li Zhigang , He Ya-Ling
Published: April 2021

The release of methane from nanochannels through displacement using CO2 is investigated through molecular dynamics simulations.
Detection of polymer compatibility by means of self-organization: poly(ethylene oxide) and poly(sodium 4-styrenesulfonate)
Authors: Bercea Maria , Wolf Bernhard A.
Published: April 2021

Manifestation of the counter ion mediated compatibility of poly(ethylene oxide) (PEO) and poly(sodium 4-styrenesulfonate) (PSS-Na): Na+ ions form bridges between the sulfonate groups of PSS-Na and the OH groups of PEO.
Comment on “Phase transitions, screening and dielectric response of CsPbBr3” by Š. Svirskas, S. Balčiūnas, M. Šimėnas, G. Usevičius, M. Kinka, M. Velička, D. Kubicki, M. E. Castillo, A. Karabanov, V. V. Shvartsman, M. R. Soares, V. Šablinskas, A. N. Salak, D. C. Lupascu and J. Banys, J. Mater. Chem. A, 2020, 8, 14015
Authors: Szafrański Marek
Published: April 2021

A recently published report on a new low-temperature phase transition in CsPbBr3 was verified. We provide strong evidence that the room-temperature orthorhombic phase of the crystal is stable at least up to 95 K.
Plasmon-induced charge separation based on a nanocomposite containing MoO2under visible light irradiation
Authors: Lee Seung Hyuk , Nishi Hiroyasu , Tatsuma Tetsu
Published: April 2021

Plasmon-induced charge separation (PICS) was achieved with compound nanomaterials containing MoO2, which has a plasmon resonance wavelength close to gold.
BODIPY-modified terpolymer donors for efficient fullerene- and nonfullerene-polymer solar cells
Authors: Gao Xuyu , Yu Ruitao , Song Xiaochen , Tao Xianwang , Wang Huabin , Zhu Mengyuan , Wu Yijing , He Yinming , Tao Youtian
Published: April 2021

For the first time, BODIPY was employed as a comonomer to develop efficient terpolymer donors resulting in synergetic PCE improvements in both fullerene and nonfullerene polymer solar cells.
Exploring the Acoustic Perceptual Relationship of Speech in Parkinson's Disease
Authors: Chiu Yi-Fang , Neel Amy , Loux Travis
Published: April 2021

Purpose

Auditory perceptual judgments are commonly used to diagnose dysarthria and assess treatment progress. The purpose of the study was to examine the acoustic underpinnings of perceptual speech abnormalities in individuals with Parkinson's disease (PD).

Method

Auditory perceptual judgments were obtained from sentences produced by 13 speakers with PD and five healthy older adults. Twenty young listeners rated overall ease of understanding, articulatory precision, voice quality, and prosodic adequacy on a visual analog scale. Acoustic measures associated with the speech subsystems of articulation, phonation, and prosody were obtained, including second formant transitions, articulation rate, cepstral and spectral measures of voice, and pitch variations. Regression analyses were performed to assess the relationships between perceptual judgments and acoustic variables.

Results

Perceptual impressions of Parkinsonian speech were related to combinations of several acoustic variables. Approximately 36%–49% of the variance in the perceptual ratings were explained by the acoustic measures indicating a modest acoustic perceptual relationship.

Conclusions

The relationships between perceptual ratings and acoustic signals in Parkinsonian speech are multifactorial and involve a variety of acoustic features simultaneously. The modest acoustic perceptual relationships, however, suggest that future work is needed to further examine the acoustic bases of perceptual judgments in dysarthria.
Analysis of Tear Fluid for Evaluation on the Concentration of the Generic Anti-Glaucoma Drug Betoptik using Multisensory Stripping Voltammetry and Multivariate Statistics
Authors: Kolesnichenko I. I. , Balashova L. M.
Published: April 2021

It is important to monitor the concentration of drugs after their instillation: this helps to find the right drug dosages. The proposed method is based on recognizing multidimensional images through the use of multidimensional statistics; the images are produced by multisensory electrochemical systems that provide reliable information about the tested objects. The measurements were carried out using a planar solid-state electrode. The test-system solution was a 0.05 М KCl solution, which contained the Zn2+, Cd2+, Рb2+, Cu2+ Со2+, and Hg2+ metal cations at the concentration of 5 10–5 M. A new electrochemical method for multisensory stripping voltammetry has been used to determine whether it is appropriate for determination of generic forms of the drug Betoptic, that is, Xonef, Betoftan, and Betalink EU in tear fluid. Measurements were carried out on a planar three-electrode interdigitated electrode. It has been shown that this method is effective for determination of the generics. The dynamics of changes in their concentrations over time were examined. After instillation of the generics in glaucoma patients, their concentrations in the Tear fluid remained unchanged within 12 h. The list of organic substances that can be determined by the method of multisensory stripping voltammetry has been extended.
Non-Euclidean Biosymmetries and Algebraic Harmony in Genomes of Higher and Lower Organisms
Authors: Petoukhov Sergey , Petukhova Elena , Svirin Vitaly
Published: April 2021

The article is devoted to the study of the relationship of non-Euclidean symmetries in inherited biostructures with algebraic features of information nucleotide sequences in DNA molecules in the genomes of eukaryotes and prokaryotes. These genomic sequences obey the universal hyperbolic rules of the oligomer cooperative organization, which are associated with the harmonic progression 1/1, 1/2, 1/3,.., 1/n. The progression has long been known and studied in various branches of mathematics and physics. Now it has manifested itself in genetic informatics. The performed analysis of the harmonic progression revealed its connection with the cross-ratio, which is the main invariant of projective geometry. This connection consists in the fact that the magnitude of the cross-ratio is the same and is equal to 4/3 for any four adjacent members of this progression. The long DNA nucleotide sequences have fractal-like structure with so called epi-chains, whose structures are also related to the harmonic progression and the projective-geometrical symmetries. The received results are related additionally to a consideration of DNA double helix as helical antenna. This fact of the connection of genetic informatics with the main invariant of projective geometry can be used to explain the implementation of some non-Euclidean symmetries in genetically inherited structures of living bodies.
A System for Measuring Water Levels in Open-Air Irrigation Canals
Authors: Carrera Fausto Freire , Sanchez Harry Saltos , Garcia-Orellana Yelitza , Chadrina Olga
Published: April 2021

The measurement of the water level in a canal allows us to know its flow. This information is essential for the correct administration of the water resource. Manual quantification can be replaced by micro controlled systems with an internet connection. Thus, the measurement and recording of water levels in open canals in real time is achieved. The chosen micro controlled system was based on ultrasonic instrumentation with GPRS communication. It had a wide cellular network to achieve an effective connectivity in rural areas, a power system combining solar energy with pollutant free batteries and the capacity to store data. The obtained percentage and average errors were lower than the permissible error specified in the requirements. Consequently, the evaluated measurement system is reliable for the evaluation of canals in a real-world setting.
Mathematical Models of the Geometry of Micro Milling Cutters
Authors: Isaev Alexander , Khamzin Ramil , Ershov Artem , Leonesio Marco
Published: April 2021

Micromachining is an up-to-date technology widely used in different advanced areas like electronics, aerospace and medical industries. For manufacturing components with highest precision and lowest surface roughness, small-sized end mills with working diameter of less than 1 mm are often used. In this paper, in order to determine the functional relationships between structural strength, cutting properties and geometry of small-sized cutting tools, the mathematical models of working part of micro milling cutters were derived.
Reliability Calculation for a Multilayered Coating Based on a Model with Independently (Sequentially) Degrading Layers
Authors: Osinnii Aleksei , Chigarev Anatoli , Bublikov Jury , Mosyanov Mikhail , Kekalo Anton
Published: April 2021

The paper proposes methods to predict the reliability of a multilayered coating based on a model with independently (sequentially) degrading layers. For the mathematical description of the process of crack penetration into the depth of a layered solid body from the free surface with certain roughness, the propagation of a crack tip into a layer adjacent to the free boundary of the coating is considered. This stochastic process is described through the specification of all multipoint probability distributions (densities), and it represents a Markov process. A mathematical model, described by equations of the parabolic type, is proposed to describe the above-mentioned process. Based on the above model, graphs are constructed to describe the change in the time of the crack propagation through a layer depending on the surface roughness and the ultimate strength (ductility) of the coating. The crack growth rate will be in the range from 10-6mm/s (when the surface roughness is low) to 10-4mm/s (when the surface roughness is high).
Simulation of Automated Machine Tool Systems
Authors: Dumler Elena , Vakhitova Roza , Saracheva Diana , Makarova Tatyana
Published: April 2021

A method of multi-nomenclature production in terms of technical and economic indicators was considered. An integrated design system that is able to assess the real relationship in the system “partmachine-transport device-device-tool” was proposed, and arelationship between the elements of an automated machine tool system was examined. The structure of an automated machine tool system, proposed in the form of a mixed graph, represented by sets described by nonlinear equations, was considered. The definitions of the sets of elements for an automated machine tool system that characterize the properties of technological objects were formulated. The main objects of design in the technological project of an automated machine system of multi-nomenclature production were determined and a graphical interpretation of the automated machine tool system was presented. It was revealed that technological equipment, the main technological machines, cutting and auxiliary tools and vehicles adequately describe manufacturing process for group of parts and are the main objects of designing technological projects for an automated machine system of multi-product manufacturing. The relationships between the elements indicated in the graph allow us to formalize and to establish the relationship between the individual components of an automated machine system, indicating in this way the need to develop a formal methodology for synthesizing the structure of an automated machine system.
Evaluation of installation procedures of volumetric water content and matric potential probes: fundamentals for obtaining field and laboratory accordance
Authors: Thiago de Souza Carnavale , Tácio Mauro Pereira de Campos , Haimon Diniz Alves Lopes
Published: April 2021

The current paper aims to analyze the influence of installation procedures when it comes to the accordance of the Soil Water Retention Curve and field monitoring data. The method comprises testing three different installation procedures: with driving the rod into the soil; with the application of mud inside the auger hole; and with a hardened steel gauge. Further, is evaluated the influence of the variation of Bulk density on volumetric water content values by using the Proctor and a double ring hydraulic equipment. To analyze the soil-rod coupling, a microtomography imaging routine was performed. The results point out that the probe’s data are connected to the Bulk density of the material, producing higher volumetric water content values with the increase of Bulk density. Comparing results of different installation methods with laboratory results, it is possible to conclude that driving the rod directly into the soil is the best way to install the equipment since the probe underestimates the volumetric water content data by 2,5%, while the mud application by 4%, and the gauge method by 5%.
Analysis of the resilience modulus of a subgrade soil front of humidity variations
Authors: Kern Camila , Gehling Wai Ying Yuk , Núñez Washington Peres
Published: April 2021

The influence of the variation of moisture content in the materials that make up the pavement has a negative impact on its performance. This variation in humidity is caused by inefficient drainage, oscillation of the water table, infiltrations, which affect the resistance and increase the deformability. The objective of this article is to evaluate the effect of moisture variation on the behavior of soils used in pavement subgrade from tests of resilience module. The subgrade of the highway BR-290/RS located in the state of Rio Grande do Sul/Brazil was evaluated. The repeated load triaxial equipment was used to perform tests of the Resilience Module (MR), varying the moisture content of the specimens by ± 2% in relation to the optimum humidity. There was a 70% decrease in MR comparing specimens above the optimum humidity with the ideal humidity conditions. A new MR equation was proposed that considers the variation in humidity, which showed high statistical significance. The results presented showed a great influence of the moisture content in soils, showing that the present article can contribute to a better understanding of the behavior of soils and a greater discussion about the effect of moisture variation in the dimensioning of pavements.
2D stability and flow analysis of a slope in Recife - PE with Barreiras Formation soil in unsaturated conditions
Authors: Fontoura Tahyara , Coutinho Roberto , Morais Bruno
Published: April 2021

Due to the increase in the number of mass movements on hillslopes during the rainy season in the city of Recife, the importance of analyzing and understanding the unsaturated behavior of the soil is verified. Therefore, this paper covers the stability analysis of an unsaturated soil belonging to the Barreiras Formation located at an important hillslope of Recife. This area has been affected by landslides in 2000, and about 100 families were left homeless after losing their homes. The slope is approximately 56 m high and 414 m long (lined up with Chagas Ferreira Avenue). The results of physical characterization and parameters from shear resistance of soil obtained in laboratory tests are presented. The modeling work was divided in two parts: (1) transient unsaturated seepage analysis; (2) stability analyses. To achieve this, computational solutions were implemented applying the SLOPE / W and SEEP / W programs, which analyzes the stability and flow of the slope. For analyzes, a rainfall of July / 2019 and pontual leaks was considered in the values of of 0.5, 1.0 and 1.5 m3/day. It was possible to observe that, as the intensity of the leaks increased, the pore water pressure values increased considerably at the deepest levels. The water table was also compatible with the increase in the intensity of water infiltration. In the slope stability analyzes conducted was observed that the increase in moisture content and the decrease in suction during intense precipitation periods combined with leak infiltration reflect in the decrease in the safety factor to values around 1.
Estimation of percolation of water balance cover using field scale unsaturated soil parameter
Authors: Alam Md Jobair Bin , Ahmed Asif , Hossain Md Sahadat , Rahman Naima
Published: April 2021

Water balance covers for landfill closure are used as a barrier which act with the natural processes to reduce percolation. The ideal performance of water balance cover is characterized by the minimal quantity of percolation. The rate of percolation of water balance cover largely depends on unsaturated soil behavior. In this study, percolation was evaluated through unsaturated soil parameters of six instrumented lysimeters. The field instrumentation included moisture sensors, tensiometers, rain gauge, dosing siphon, and pressure transducer. Soil water storage (SWS) capacity (SA) was quantified from the soil water characteristic curves (SWCC) which were developed based on laboratory experiments and field instrumentation data. Required SWS (SR) was also measured from the field monitoring results. Based on analysis, the relative storage ratio (SR/SA) was observed to be greater than unity (1) in most of the cases, indicating potential percolation. The SR/SA was also found competent to identify the lysimeter with higher quantity of percolations. The estimated percolation from the laboratory experimented and field generated SWCCs fairly resembled with the actual field measured percolation. The analyzed results also developed a framework to estimate the thickness of the cover storage layer required to manage percolation for the specific region of the study area.
Development of flume model of inclined capillary barrier (clay silt/CDW) in a subtropical climate scenario
Authors: Oliveira Thays C.F. , Dezen Bianca G.S. , Bizarreta-Ortega Julio C.
Published: April 2021

Interest in research on capillary barrier (CB) in regions with humid climates (tropical and subtropical) is increasing. One of the main advantages of such cover type is the greater flexibility regarding the materials that could compose it. A possibility is the use of construction and demolition wastes (CDW), which would contribute to the solution of CDW destination, a problem in urban centers. Thus, the present work aimed an experimental evaluation of CB cover with CDW in its composition. A CB cover system was reproduced in a physical model in acrylic box, with clay soil as capillary layer and CDW as capillary block, given its granulometric and hydraulic contrast. The layers were arranged with the usual landfill slope, of 1:3, and a very heavy rain, of 90 mm, was simulated. Three tests were performed on the flume model, in which initial CDW saturation degree (S0) was varied in 4,5%, 10,3% and 17,3%. Results indicate formation, indeed, of capillary barrier between the two used materials. The most efficient model was the one with lowest initial CDW S0, of 4,5%. As the CWD S0 increased, time of flow permanence at materials interface decreased, indicating a CWD S0 in which such capillary barriers no longer function effectively. Regarding percolation rate, the maximum for a 90 mm rainfall was 2,7%, which fits the landfill cover projects criteria consulted.
Study of mining tailings geotechnical parameters obtained from SCPTu tests carried on dry and saturated layers
Authors: Nierwinski Helena P. , Heidemann Marcelo , Lavalle Laura A. , Sell Bruna
Published: April 2021

The correct interpretation of in situ and laboratory test results is an important step in the design of mining tailing containment structures. This study aims to analyze the Seismic Cone Penetration Test (SCPTu) results obtained into a mining tailing reservoir composed of two material layers: a thick-dry and a tick-saturated. It is possible to observe that in a same tailing reservoir, the CPTu test interpretation can lead to a classification of each layer as a different soil with specific behavior and properties. This condition demonstrates that tailings with intermediate permeability (10-5 m/s < k < 10-8 m/s) may present partial drainage conditions during a standard cone penetration test (CPTu) (v=20 mm/s), if saturated conditions are verified. The effects of partial drainage can affect test results, and can induce to errors in the prediction of soil behavior and geotechnical parameters. To evaluate the possible effects of partial drainage, in situ test results were compared to laboratory tests results. It was possible to verify that estimated behavior of dry layers, obtained from in situ tests results, present more similarity to the results from laboratory tests. Probably, the partial drainage effects verified through the interpretation of dissipation tests, distorted the estimated behavior of the saturated layer material.
Paving the way for the optimization of water consumption in the steelmaking processes: barriers, analysis and KPIs definition
Authors: Branca Teresa Annunziata , Matino Ismael , Colla Valentina , Petrucciani Alice , Singh Amarjit Kuor Maria , Zaccara Antonella , Beone Teresa , De Cecco Luca , Hakala Ville , Lorito Davide , Moreira Santiago , Piras Elisa
Published: April 2021

The efficient use of water resources is one of the main challenges of the steel sector, according to the European Union water policy. On this subject, monitoring and optimization systems, linked to the innovative water treatments, represent important tools to improve water management and the related energy use. The present paper describes a part of the work developed in the early stage of the project entitled “Water and related energy Hub Advanced Management system in steelworks – WHAM”, which is co-funded by the Research Fund for Coal and Steel. The project aims at optimizing water consumption in the steelworks through a holistic combination of on-line monitoring and optimisation and innovative water treatment technologies. As different aspects affect water use in the steelmaking processes, in the first part of the paper, the main technical barriers and factors, that can impact on reuse and recirculation of wastewater and energy efficiency, are analysed. The main constraints on water management in the steel sector, such as fresh water availability, its quality and local legal requirements, were considered in order to maximise the water reuse and recycling. Furthermore, the main barriers, such as environmental issues and several costs, were investigated. In the second part of the paper, a set of Key Performance Indicators are listed. They aim at assessing and monitoring the water management sustainability in a holistic way, both in terms of environmental and economic performances, as well as of new water treatments efficiency and their economic viability. Key Performance Indicators will be used to monitor the efficiency of water management, aiming at achieving significant increase of performances. On the other hand, some of these indicators will be used as objective functions for problems optimization. The computation of the selected Key Performance Indicators will take into account both industrial data and results from simulations that will be carried out after the development of suitable tools in order to assess the feasibility of some relevant process modifications or the applications of new technologies.
(Im-)material flow analysis framework implementation on repair and reuse initiatives
Authors: Gobert Julie , Allais Romain
Published: April 2021

This research aims at understanding better the nature of stakeholders’ resistance to and interest in repair and reuse. In fact, the authors assume that in the future waste management could be less centralized using a network of territorialized initiatives based on repair and reuse activities with high social and environmental values. Such system innovation requires tools and methods to support analysis and facilitate decision-making in multi-stakeholders, multi-scales systems. The framework for spatiotemporal analysis of territorial projects considers a project’s stakeholder network and the way they mobilize resources. These resources may be tangible or intangible, brought by individuals, organizations or even the territory. This communication focuses on the implementation of such an analysis in the community of communes Coeur de Savoie, to understand how local initiatives emerge and on which interactions and resources they are based. This paper proposes feedback on the implementation of the spatio-temporal analysis in one case study (Coeur de Savoie), and provides insights to build new networks promoting reuse and repair.
The comparison of pricing methods in the carbon auction market via multi-agent Q-learning
Authors: Esmaeili Avval Akram , Dehghanian Farzad , Pirayesh Mohammadali
Published: April 2021

In this paper, the uniform price and discriminative price methods are compared in the carbon auction market using multi-agent Q-learning. The government and different firms are considered as agents. The government as auctioneer allocates initial permits in the carbon auction market, and the firms as bidders compete with each other to obtain a larger share of the auction. The carbon trading market, penalty, reserve price, and bidding volume limitation are considered. The simulation analysis demonstrates that bidders have different behavior in two pricing methods under different amounts of carbon permits. In the uniform price, the value of bidding volume, firms’ profit, and the trading volume for low permits and the value of the government revenue, clearing price, the trading price, and auction efficiency for high permits are greater than ones in the discriminative price method. Bidding prices have a higher dispersion in the uniform price than the discriminative price method for different amounts of carbon permits.
Pushkin’s allusions in the comedy of A. P. Chekhov "The Cherry Orchard"
Authors: Kopteva E. I.
Published: April 2021

The study of Pushkin's allusions in the works of Anton Chekhov has been carried out for several decades. The relevance and novelty of this topic is associated with new observations and searches for intertextual connections, the expansion of the context of analysis, including in connection with the appeal to the dramatic works of the writer. This work considers the allusions from the works of A. Pushkin "The Queen of Spades", "Boris Godunov" and others, their role in the artistic whole of the comedy of A. P. Chekhov "The Cherry Orchard". The effectiveness of the approach which was outlined in the studies of R.G. Nazirov in the 1990s, as well as S.A. Kibalnik, M.V. Litovchenko and other domestic scientists is confirmed. Literary allusions resonate in Chekhov's artistic world, cumulatively marking a transitional stage of cultural and historical life and its personal comprehension. The intertextuality of Chekhov's works allows us to create an integral image of Russian culture: the semantic relations of allusions and reminiscences are combined with the multilayered symbolism of sound, hearing, gesture, touch - in general, the experience of time and the multiple meanings of words. The semantic "expansion" of Chekhov's play text leads not only to comparisons with Russian classics, but also to an open finale - a future literary context, implementing the "principle of plot uncertainty" and removing the uniqueness/truthfulness of any interpretation.
Threats of increased spread of extremism in educational institutions of the Russian Federation in the context of the COVID-19 pandemic
Authors: Ishchenko Oksana
Published: April 2021

The COVID-19 pandemic, according to scientists and experts, was a major social upheaval that threatened to increase the spread of extremism among students. Analysis of open information sources shows that the growth of youth aggression in conditions of self-isolation and the increase in the amount of time spent on the Internet has contributed to the preservation of previous forms of extremist actions by children and adolescents, such as participation in destructive communities, causing harm to physical and mental health, preparing terrorist attacks in educational institutions. With the transition to distance learning, the mass disruption of classes was complemented, which can be considered in the context of preparation for extremist activity. All of this raises the question of the need for comprehensive research into the impact of the COVID-19 pandemic on youth extremism and the improvement of forms and methods of its prevention.
Poetic syntax as a form of representation of the author’s worldview (on the materials of poetic works by K.L. Khetagurov and B.M. Gurdzhibekov)
Authors: Dreeva Dzhanetta , Karsanova Elena , Kulchieva Madina , Tolparova Dzerassa
Published: April 2021

The paper attempts to analyse the structural and syntactic means of organising a poetic text in relation to psychological abilities and worldviews of the artists of the word on the materials of the poetic works of the Ossetian poets of the late 19th – early 20th centuries, Kosta Khetagurov and Blashka Gurdzhibekov. The subject of the research is ellipsis and syntactic parallelism, considered as the key elements of the poets’ individual styles that reflect the features of their worldviews and, accordingly, represent personal psychological characteristics of the poets. Based on the revealed tendency to use ellipsis together with the repeated syntactic constructions a conclusion has been drawn about the originality of the poets’ individual styles and the possibility to syntactically reflect the specificity of their worldviews, which are determined by their psychological types.
Political participation of Russian youth in the context of virtualization of modern processes: cognitive foundations and behavioral manifestations
Authors: Samuilova Irina , Bakuleva Karina
Published: April 2021

The article presents the results of an empirical study aimed at studying the features of virtual political participation of modern Russian youth. The author's technique for diagnosing virtual political participation, developed on the basis of a cognitive approach to political behaviour, is described. The relationship between the characteristics of media use, the socio-political participation of young people and their political beliefs are revealed. The assumption is tested that the peculiarities of interaction of young people with media resources are determined by the abilities and skills of working with information – respondents with a high level of media competence are more active in introducing themselves to the virtual political agenda and expressing their own position in the online space, while less media competent people deliberately distance themselves from expanding the information base related to politics and have specific political beliefs. It was found that the preference for certain types of virtual political participation is associated with subjective ideas about the nature of political processes, as well as the level of media competence.
Spanglish in contemporary music
Authors: Suprunov Semen E. , Deeney (Kuprieva) Irina A. , Drozdova Ekaterina Alexandrovna
Published: April 2021

Spanglish is a unique linguistic phenomenon that is widely used in many spheres of social life and culture, especially among the youth. The relevance of this work lies in the fact that a person who wants to understand the culture of Mexico and the United States of America, to understand the speakers of the Mexican version of the Spanish language and communicate with them successfully, needs to know about the principles of using Spanglish, its significance for speakers, and also its areas of application. The subject of the research is the features of the use of Spanglish in modern music. The purpose of this paper is to study the Spanglish phenomenon and consider examples of its use by contemporary songwriters. Among the tasks it can be noted: based on the experience in studying the history of the origin of Spanglish, consider its main features, give examples of the use of Spanglish in modern musical compositions and draw a conclusion about the frequency of occurrence of Spanglish in music.
Justification of the concept of development of modern organic agriculture on the basis of biointensive technologies
Authors: Kundius V.A.
Published: April 2021

The article presents the results of research on the project "Development of organic agriculture based on advanced methods and technologies", with its integrated system approach, models of market organisation, process control of biological function and development of rural areas. The article substantiates the need to develop the concept and programs of organic agriculture in the regions of the Russian Federation in relation to the Altai Territory on the basis of a cluster approach with the development of biointensive technologies, mechanisms and methods of its development.
Motivating students for distance learning in the context of the COVID-19 pandemic
Authors: Yekimov Sergey , Danylovych Oksana , Baidala Viktoriya , Vasylieva Larysa , Mikhailychenko Oleh
Published: April 2021

Distance learning based on the use of telecommunications technologies allows not only to communicate with the use of a foreign language, but also to gain an understanding of foreign culture and history, but also to gain skills in the use of a foreign language in order to solve professional problems. By participating in telecommunications projects, students become more interested in actively participating in the educational process. Team creative activity of students aimed at solving various communication tasks increases, in our opinion, the motivation to acquire new knowledge and skills. In connection with the COVID-19 pandemic, students of many educational institutions were transferred to distance learning. From this point on, students could study some academic disciplines through the use of interactive technologies. However, the transition of all subjects to distance learning was an unpleasant surprise for many students. Teachers of the course of foreign languages for students of non-linguistic specialties began to note a decrease in student performance as a result of the transition to distance learning of foreign languages. We attribute this decrease to a decrease in students ' motivation to participate in the educational process. We suggested using the project method to increase motivation for distance learning of a foreign language. At the end of the academic semester, teachers who teach foreign languages for students of non-linguistic specialties noted the progress of the students ' reading skills in technical literature corresponding to their chosen profession.
Conditions for the use of simulators that implement the features of artificial intelligence systems when studying at a transport university
Authors: Karelina M.V. , Vakulenko S.P.
Published: April 2021

The article presents the main conditions for the use of simulators, which are proposed to be used both for the simulators themselves, which implement the features of artificial intelligence systems, and for the organization of work with simulators in the educational process. Training of students with the use of simulators should form practical skills of the future specialty in accordance with the types of professional activity and qualification characteristics. The conditions for the use of simulators are proposed to include: the implementation of the activity approach; information security of software products; leveling of possible negative consequences for the health of the student, etc. Each of the presented conditions implies the need to ensure the formed parameters and the order of their evaluation. It is concluded that the above conditions for the use of simulators will allow for the development of new forms of professional training and appropriate scientific and methodological tools, and the need to actively introduce new high-tech simulators into the educational process of transport universities, including those that implement the capabilities of virtual/ augmented reality technologies.
Realization of social and spiritual needs of a person in the context of non-institutional practices of polyartistic education
Authors: Shkor Lidia
Published: April 2021

The paper reveals the importance of non-institutional practices of polyartistic education (NPPE) for the realization of social and spiritual needs of a person. The influence of a number of factors on the NPPE revitalization has been substantiated: pandemic, self-isolation, the development of digital technologies, increasing interest in artistic culture, joint creative activity in the online format. Historical parallels of modern NPPE as a pedagogical phenomenon associated with the organization of everyday activity experience of being a human based on art have been revealed.
Quality assessment of educational outcomes of university students in conditions of the modernization of higher education
Authors: Shirobokov S.N. , Lorents V.V.
Published: April 2021

The article discusses current problems and opportunities for competitiveness assessment of graduate in the context of the requirements of professional standards. The authors present the technology of competitiveness assessment of a future specialist taking into account the following criteria: professional knowledge in a psychological and pedagogical and subject area, the level of communicative culture in organizing interaction with the subjects of education, the level of student motivation in creating an individual educational route and forming long-term professional goals, reflexive skills of students in assessing the results of learning and cognitive activities and monitoring the dynamics of student progress in the educational space. The article material presents the results of empirical and comparative theoretical study of the level of development of educational outcomes and functional literacy of students of Russian and a number of foreign universities. The competitiveness assessment of future specialists was based on the study of the level of development of universal skills “soft skills” on the example of the implementation and design of individual educational routes of students. The authors have formulated conclusions that this process of assessment of scientific and educational achievements of students is associated with trends in humanization and internationalization of higher education, which determines the need to use in the educational process of a modern university open learning systems aimed at organizing the learning of students on individual educational routes, providing academic mobility of students.
Cognitive organization of cognitive activities of students on the basis of effective harmonization of logical and emotional aspects of acquiring of scientific knowledge
Authors: Kamaleeva A.R. , Mukhametzyanova L.Yu. , Nigmetzyanova V.M. , Nozdrina N.A. , Pokaninova E.B.
Published: April 2021

The relevance of the article is due to the fact that cognitive pedagogy has set the task of identifying the patterns of functioning and the formation of learning mechanisms for students in order to increase the effectiveness and quality of higher education in the era of digitalization. The purpose of the article is to reveal the integrative integrity of cognitive-logical and emotional-figurative mechanisms of cognition based on the relationship between the perceptions of the procedural deployment of educational material with the patterns in the presentation of a simultaneous image in the process of semantic disclosure of educational information. The cognitive paradigm is positioned as a methodological basis for the study, based on the appeal to methods, types and technologies of information processing by a person in order to create his own system of knowledge of the world with access to the generation of knowledge. The authors emphasize the importance of using the mechanisms of art in the process of emotionally figurative interpretation of scientific knowledge associated with the hermeneutic direction, according to which it is necessary to prepare students for perception, adjust them to experience and empathy, which contribute to the assimilation of scientific knowledge not reproductively, but constructively, creatively. In the process of experimental work, diagnostics of the dominant perceptual modality and imagination were used in order to identify their role in the organization of educational and cognitive activity in conditions of intensive generation of knowledge.