bluuebunny/crossref_metadata_2025 huggingface dataset:
Density functional theory for the prediction of interfacial properties of molecular fluids within the SAFT-γ coarse-grained approach
Authors: Algaba Jesús , Mendiboure Bruno , Gómez-Álvarez Paula , Blas Felipe J.
Published: June 2022

Comparison of the vapour–liquid surface tensions for substances studied in this work as obtained from SAFT-VR Mie DFT and experiments.
Recycling and applications of ammonium polyphosphate/polycarbonate/acrylonitrile butadiene styrene by laser-scribing technologies for supercapacitor electrode materials
Authors: Yang Weiwei , Yu Chao , Meng Fanxing
Published: June 2022

Fabricating a simple and valid high-property graphene-based supercapacitor employing engineered plastic waste as the original material has attracted tremendous interest.
Selective strontium adsorption using synthesized sodium titanate in aqueous solution
Authors: Kim Gyuhyeon , Lee Dae Sung , Eccles Harry , Kim Su Min , Cho Hyun Uk , Park Jong Moon
Published: June 2022

Amorphous sodium titanates were synthesized using a mid-temperature sol–gel method for evaluation as selective adsorbents of strontium in the presence of cesium or metal cations (Al3+, Mg2+, Ca2+, and Mn2+) from aqueous solution.
Ru(ii)arene(N^N bpy/phen)-based RAPTA complexes for in vitro anti-tumour activity in human glioblastoma cancer cell lines and in vivo toxicity studies in a zebrafish model
Authors: P. K. Anuja , Kar Binoy , Roy Nilmadhab , Paira Priyankar
Published: June 2022

A series of half-sandwich Ru(ii)arene(N^N bpy/phen)-based RAPTA complexes have been developed for brain cancer therapy.
Ultrasonic-assisted-synthesis of isoindolin-1-one derivatives
Authors: Mardjan Muhammad Idham Darussalam , Hariadi Muhamad Fadhly , Putri Indah Mutiara , Musyarrofah Nilna Amalia , Salimah Muflihah , Priatmoko  , Purwono Bambang , Commeiras Laurent
Published: June 2022

Functionalized isoindolin-1-ones have been prepared in short reaction time and excellent yields from 3-alkylidenephtalides and primary amines under ultrasonic irradiation.
Copper-catalyzed stereo- and regioselective hydrophosphorylation of terminal alkynes: scope and mechanistic study
Authors: Li Junchen , Gao Zhenhua , Guo Yongbiao , Liu Haibo , Zhao Peichao , Bi Xiaojing , Shi Enxue , Xiao Junhua
Published: June 2022

A highly selective hydrophosphorylation of terminal alkynes was developed for the preparation ofE-alkenylphosphorus compounds. Mechanistic investigations disclosed the deprotonation–protonation equilibrium of terminal alkynes and P(O)H compounds during this process.
A review of the catalytic conversion of glycerol to lactic acid in the presence of aqueous base
Authors: Akbulut Doğan , Özkar Saim
Published: June 2022

A critical review of the reports on the catalytic conversion of glycerol to lactic acid in an aqueous alkaline medium by considering the reaction conditions, catalytic activity for glycerol conversion and selectivity for lactic acid.
Understanding the effect of liquid crystal content on the phase behavior and mechanical properties of liquid crystal elastomers
Authors: Barnes Morgan , Cetinkaya Sueda , Ajnsztajn Alec , Verduzco Rafael
Published: June 2022

Liquid crystal elastomers are stimuli-responsive, shape-shifting materials.
Interlayer-expanded MWW-type zeolite catalysts with carbon filler in expanded micropores for efficient microwave heating
Authors: Okamoto Masaki , Sakatsume Takahiro , Tsubaki Shuntaro , Wada Yuji
Published: June 2022

Carbon-filled interlayer-expanded MWW catalysts was suitable for microwave (MW) heating, and the catalyst heated by MW radiation resulted in lowering the reaction temperature and the improvement of shape selectivity in toluene methylation.
Regulating zinc metal anodesvianovel electrolytes in rechargeable zinc-based batteries
Authors: Li ChenChen , Wu Qian , Ma Jian , Pan Hongge , Liu Yanxia , Lu Yingying
Published: June 2022

This review summarizes the latest strategies of advanced electrolyte engineering to construct a stable zinc metal anode in rechargeable zinc batteries.
Liquid-phase synthesis of the Li10GeP2S12-type phase in the Li–Si–P–S–Cl system
Authors: Ito Tomohiro , Hori Satoshi , Hirayama Masaaki , Kanno Ryoji
Published: June 2022

A new liquid-phase synthesis of the Li10GeP2S12-type phase in the Li–Si–P–S–Cl system, which shows the highest lithium ionic conductivity among the reported Li-ion conductors, was developed for large-scale production.
Defect engineering of electrode materials towards superior reaction kinetics for high-performance supercapacitors
Authors: Lu Wen , Yan Lei , Ye Wuquan , Ning Jiqiang , Zhong Yijun , Hu Yong
Published: June 2022

In this review, a comprehensive overview of recent progress and achievements in defect engineering of electrode materials towards superior reaction kinetics for supercapacitors are presented.
Interface engineering of calligraphic ink mediated conformal polymer fibers for advanced flexible supercapacitors
Authors: Wang Pengzhen , Liu Kai , Wang Xiaoxiao , Meng Zhaoting , Xin Zhefeng , Cui Chaochao , Quan Fengyu , Zhang Kewei , Xia Yanzhi
Published: June 2022

A novel and universal interface engineering strategy was developed for constructing conformal organic–inorganic–organic composite fiber electrodes from renewable marine polysaccharides to assemble high-performance symmetrical FESCs.
Cationic poly(amino acid) surface functionalized manganese nanoparticles for nitric oxide-based immunotherapy and magnetic resonance imaging
Authors: Lim Jong-Woo , Son Hye Young , Huh Yong-Min , Haam Seungjoo
Published: June 2022

Poly(l-arginine) and hyaluronic acid modified MnO2nanoparticles (hpMNPs) reprogrammed M2 macrophages to M1 secreting high level of pro-inflammatory cytokines and nitric oxide, leading to apoptosis of tumor cells.
Engineering BODIPY-based near-infrared nanoparticles with large Stokes shifts and aggregation-induced emission characteristics for organelle specific bioimaging
Authors: Guo Xing , Tang Bing , Wu Qinghua , Bu Weibin , Zhang Fan , Yu Changjiang , Jiao Lijuan , Hao Erhong
Published: June 2022

Two AIE active, self-assembled BODIPY nanoparticles showed different cellular localizations, and were used to monitor abnormal activities of LDs and lysosomes, as well as for real-time tracking of the lipophagy process in cells.
Aggressive strategies for regenerating intervertebral discs: stimulus-responsive composite hydrogels from single to multiscale delivery systems
Authors: Gao Xi-dan , Zhang Xiao-bo , Zhang Rui-hao , Yu De-chen , Chen Xiang-yi , Hu Yi-cun , Chen Lang , Zhou Hai-yu
Published: June 2022

Stimulus responsive composite hydrogels combines with ready-to-use particles to form multi-scale delivery system. After solidification in vivo, the biological agents slowly released induce stem cells to differentiate into IVD tissue.
Color controllable smart white lighting based on various device architectures of electrically driven quantum-dot light-emitting diodes
Authors: Shin Dong-Wook , Lee Sanghyo , Choi Hyung Woo , Bang Sang Yun , Han Soo Deok , Cho Yul Jae , Fan Xiang-Bing , Jo Jeong-Wan , Ni Limeng , Samarakoon Chatura , Arbab Adrees , Yang Jiajie , Kim Yoonwoo , Jung Sung-Min , Occhipinti Luigi G. , Amaratunga Gehan A. J. , Kim Jong Min
Published: June 2022

Device architectures of patterned-, stacked-, and mixed-type quantum-dot light-emitting diodes (QD-LEDs) for the next-generation smart white lighting have been analyzed and optimized by computational charge transport simulation and experiments.
A Modified Pediatric Ranked Order Speech Perception Score to Assess Speech Recognition Development in Children With Cochlear Implants
Authors: Arjmandi Meisam K. , Herrmann Barbara S. , Caswell-Midwinter Benjamin , Doney Elizabeth M. , Arenberg Julie G.
Published: June 2022

Purpose:

Characterizing and comparing speech recognition development in children with cochlear implants (CIs) is challenging because of variations in test type. This retrospective cohort study modified the Pediatric Ranked Order Speech Perception (PROSPER) scoring system to (a) longitudinally analyze the speech perception of children with CIs and (b) examine the role of age at CI activation, listening mode (i.e., unilateral or bilateral implantation), and interimplant interval.

Method:

Postimplantation speech recognition scores from 31 children with prelingual, severe-to-profound hearing loss who received CIs were analyzed (12 with unilateral CI [UniCI], 13 with sequential bilateral CIs [SEQ BiCIs], and six with simultaneous BiCIs). Data were extracted from the Massachusetts Eye and Ear Audiology database. A version of the PROSPER score was modified to integrate the varying test types by mapping raw scores from different tests into a single score. The PROSPER scores were used to construct speech recognition growth curves of the implanted ears, which were characterized by the slope of the growth phase, the time from activation to the plateau onset, and the score at the plateau.

Results:

While speech recognition improved considerably for children following implantation, the growth rates and scores at the plateau were highly variable. In first implanted ears, later implantation was associated with poorer scores at the plateau (β = −0.15,
p
= .01), but not growth rate. The first implanted ears of children with BiCIs had better scores at the plateau than those with UniCI (β = 0.59,
p
= .02). Shorter interimplant intervals in children with SEQ BiCIs promoted faster speech recognition growth of the first implanted ears.

Conclusion:

The modified PROSPER score could be used clinically to track speech recognition development in children with CIs, to assess influencing factors, and to assist in developing and evaluating patient-specific intervention strategies.

Supplemental Material:

https://doi.org/10.23641/asha.20113538
A hybrid deep and machine learning model for short‐term traffic volume forecasting of adjacent intersections
Authors: Mirzahossein Hamid , Gholampour Iman , Sajadi Sayed Reza , Zamani Amir Hossein
Published: June 2022

Despite complex fluctuations, missing data, and maintenance costs of detectors, traffic volume forecasting at intersections is still a challenge. Moreover, most existing forecasting methods consider an isolated intersection instead of multiple adjacent ones. By accurately forecasting the volume of short‐term traffic, a low‐cost method can be provided to solve the problems of congestion, delay, and breakdown of detectors in the road transport system. This paper outlines a novel hybrid method based on deep learning to estimate short‐term traffic volume at three adjacent intersections. The gated recurrent unit (GRU) and long short‐term memory (LSTM) bilayer network with wavelet transform (WL) noise reduction algorithm (WL+GRU‐LSTM) are used to analyze raw traffic volume data. The WL+GRU‐LSTM is constructed by comparing different machine learning and deep learning methods. A comparative study was used to choose the model’s network structure, training technique, and optimizer type. To prove the model’s accuracy and resilience, it was compared with the leading short‐term traffic forecasting approaches. Experimental results confirm that the WL+GRU‐LSTM model can forecast complex traffic volume fluctuations in different approaches of intersections with an accuracy of over 94%. It also shows better results compared to current methods. The proposed model could replace intermediate loop detectors.
Optimal day‐ahead scheduling in micro‐grid with renewable based DGs and smart charging station of EVs using an enhanced manta‐ray foraging optimisation
Authors: Bastawy Mostafa , Ebeed Mohamed , Ali Abdelfatah , Shaaban Mostafa F. , Khan Baseem , Kamel Salah
Published: June 2022

Micro‐grids (MGs) are small parts of the electrical power system that work along with the electric system or autonomously based on environmental or economic conditions. The renewable‐based distributed generators (RDGs) and electric vehicle charging stations (EVCSs) are wildly incorporated in MGs. Optimal day‐ahead scheduling of the MG is ahead corner of energy management for cost reduction. In addition, solving the economic load dispatch and day‐ahead scheduling of the MG is a complex optimisation problem, especially considering the RDGs, EVCS, and uncertainties in the electrical system. This paper aims to optimise the day‐ahead scheduling of the MG with and without a smart charging strategy for electric vehicles. An enhanced manta‐ray foraging optimisation (EMRFO) algorithm is proposed to solve this optimisation problem. EMRFO depends upon boosting population diversity and the searching ability of the standard MRFO using strategies. The proposed strategies are based on quasi‐oppositional‐based learning and local chaotic mutation. The studied MG consists of wind turbines, fuel cells, and diesel generators. The day‐ahead scheduling of the MG is solved with and without considering the uncertainties of the load demand and the wind speed. The proposed algorithm for day‐ahead scheduling of the MG is compared to well‐known algorithms such as anti lion optimisation, particle swarm optimisation, whale optimisation algorithm, sine cosine algorithm, and harmony search algorithm. The simulation results demonstrate that the proposed algorithm is superior to these algorithms for solving the optimisation problem. The results show that the generation cost is reduced considerably from 77,745.61 $ to 76,984.2 $ by applying the smart operation strategy.
Direct slip angle control for rotor side converter of standalone DFIG‐DC system
Authors: Fakhraee Hanif , Babaei Mojtaba , Alizadeh Mohsen , Tabrizian Mohammad
Published: June 2022

This paper presents a direct slip angle control (DSAC) for rotor side power converter of standalone doubly‐fed induction generator (DFIG) DC systems. The conventional direct torque control (DTC) for the rotor side converter (RSC) of the standalone DFIG‐DC system is also introduced to evaluate the proposed DSAC compared to the conventional DTC method. In this regard, the proposed DSAC method is mathematically analyzed. Then, three states including output DC voltage change, wind speed change, and load change are simulated and performed for both the proposed DSAC and conventional DTC methods. Various simulations and experiments substantiate that the electromagnetic torque ripple, current harmonics, and the output DC voltage dip, caused by the sudden load‐change, are reduced in the proposed DSAC method compared to the conventional DTC method. Besides, the parameter dependency is reduced in the proposed DSAC method since the stator voltage and current sensors are removed.
Identification of TNFAIP6 as a hub gene associated with the progression of glioblastoma by weighted gene co‐expression network analysis
Authors: Lin Dongdong , Li Wei , Zhang Nu , Cai Ming
Published: June 2022

This study aims to discover the genetic modules that distinguish glioblastoma multiforme (GBM) from low‐grade glioma (LGG) and identify hub genes. A co‐expression network is constructed using the expression profiles of 28 GBM and LGG patients from the Gene Expression Omnibus database. The authors performed gene ontology (GO) and Kyoto encyclopaedia of genes and genomes (KEGG) analysis on these genes. The maximal clique centrality method was used to identify hub genes. Online tools were employed to confirm the link between hub gene expression and overall patient survival rate. The top 5000 genes with major variance were classified into 18 co‐expression gene modules. GO analysis indicated that abnormal changes in ‘cell migration’ and ‘collagen metabolic process’ were involved in the development of GBM. KEGG analysis suggested that ‘focal adhesion’ and ‘p53 signalling pathway’ regulate the tumour progression. TNFAIP6 was identified as a hub gene, and the expression of TNFAIP6 was increased with the elevation of pathological grade. Survival analysis indicated that the higher the expression of TNFAIP6, the shorter the survival time of patients. The authors identified TNFAIP6 as the hub gene in the progression of GBM, and its high expression indicates the poor prognosis of the patients.
Disentangling emission from star-forming regions in the Magellanic Clouds: Linking [O iii]λ88 µm and 24 µm
Authors: Lambert-Huyghe A. , Madden S. C. , Lebouteiller V. , Galliano F. , Abel N. , Hu D. , Ramambason L. , Polles F. L.
Published: June 2022

Context. The [O iii]λ88 µm line is observed in many galaxies including our neighboring Magellanic Clouds and is a well-known tracer of H ii regions, while the 24 µm continuum emission has often been used to trace warm dust in the ionized phases of galaxies. The association of both the [O iii]λ88 µm line and 24 µm in galaxies to star formation motivates this study to determine their observational relation.

Aims. This study explores the link between the [O iii]λ88 µm and 24 µm continuum in star-forming regions in the Magellanic Clouds. We also explore the local conditions driving the relation between those tracers.

Methods. We compared observations with 1D Cloudy models consisting of an H ii region plus a photodissociation region (PDR) component, varying the stellar age, the initial density (at the illuminated edge of the cloud), and the ionization parameter. We introduced a new parameter, cPDR, to quantify the proportion of emission arising from PDRs and that with an origin in H ii regions along each line of sight. We used the ratio ([C ii]+[O i])/[O iii] as a proxy for the ratio of PDR versus H ii region emission, and compared it to the [O iii]/24 µm ratio. The use of [O iii]/24 µm and [O iii]/70 µm together allowed us to constrain the models most efficiently.

Results. We find a correlation over at least 3 orders of magnitude in [O iii]λ88 µm and 24 µm continuum. This correlation is seen for spatially resolved maps of the Magellanic Cloud regions as well as unresolved galaxy-wide low metallicity galaxies of the Dwarf Galaxy Survey. We also find that most of the regions have low proportions of PDRs along the lines of sight (<12%), while a limited area of some of the mapped regions can reach 30–50%. For most lines of sight within the star-forming regions we have studied in the Magellanic Clouds, H ii regions are the dominant phase.

Conclusions. We propose the use of the correlation between the [O iii]λ88 µm and 24 µm continuum as a new predictive tool to estimate, for example, the [O iii]λ88 µm when the 24 µm continuum is available or inversely. This can be especially useful to prepare for Atacama Large Milimeter Array (ALMA) observations of [O iii]λ88 µm in high-z galaxies. The simple and novel method we developed may also provides a way to disentangle different phases along the line of sight, when other 3D information is not available.
How cooling influences circumbinary discs
Authors: Sudarshan Prakruti , Penzlin Anna B. T. , Ziampras Alexandros , Kley Wilhelm , Nelson Richard P.
Published: June 2022

Circumbinary disc observations and simulations show large, eccentric inner cavities. Recent work has shown that the shape and size of these cavities depend on the aspect ratio and viscosity of the disc, as well as the binary eccentricity and mass ratio. It has been further shown that, for gaps created by planets, the cooling timescale significantly affects the shape and size of the gap. In this study, we consider the effect of different cooling models on the cavity shape in a circumbinary disc. We compare locally isothermal and radiatively cooled disc models to ones with a parametrised cooling timescale (β-cooling), implemented in 2D numerical simulations for varying binary eccentricities. While the shape of the cavity for radiative and locally isothermal models remains comparable, the inner disc structure changes slightly, leading to a change in the precession rate of the disc. Withβ-cooled models, the shape and size of the cavity changes dramatically towards values ofβ= 1. Based on our findings, we introduce a parametrisedβmodel that accounts for the shorter cooling timescale inside the cavity while adequately reproducing the results of the radiative model, and we highlight that accurate treatment of the thermodynamics inside the cavity has a significant impact in modelling circumbinary systems.
Nonthermal radiation from the central region of super-accreting active galactic nuclei
Authors: Sotomayor Pablo , Romero Gustavo E.
Published: June 2022

Context.The radio emission mechanism in active galactic nuclei (AGNs) with high accretion rates is unclear. It has been suggested that low-power jets may explain the observed radiation at subparsec scales. The mechanisms for jet formation at super-Eddington rates, however, are not well understood. On the same scale, clouds from the broad-line region (BLR) propagating with supersonic velocities in the wind launched by the accretion disk may lead to the production of nonthermal radiation.

Aims.We aim to characterize the nonthermal emission produced by the propagation of clouds through the wind of the accretion disk in super-accreting AGNs, and to estimate the relevance of such a contribution to the radio band of the electromagnetic spectrum.

Methods.We determined the conditions under which the BLR clouds are not destroyed by shocks or hydrodynamic instabilities when immersed in the powerful wind of the accretion disk. These clouds form bowshocks which are suitable sites for particle acceleration. We developed a semianalytical model to calculate the distribution of relativistic particles in these bowshocks and the associated spectral energy distribution (SED) of the emitted radiation.

Results.For typical parameters of super-accreting AGNs, we find that the cloud-wind interactions can produce nonthermal emission from radio up to a few tens of TeV, with slight absorption effects, if the processes occur outside the wind photosphere.

Conclusions.Radio emission in AGNs without jets can be explained if the accretion rate is super-Eddington and if there is a BLR at subparsec scales around the central black hole. The accretion rate must not be extremely high so most of the clouds orbit outside of the wind photosphere and the radiation can escape to the observer. Instabilities in the disk wind, which have previously been reported in numerical simulations, generate clumps that increase the filling factor of the overdensities in the BLR and enhance the emitted radiation.
Interrelation between physical activity and hamstring flexibility among university students
Authors: Moment Artem
Published: June 2022

In recent time, the specialists in the field of physical education and health protection have no consensus on the need to include stretching exercises as an obligatory type of physical activity for apparently healthy young people. The problem is that most university students tend to have sedentary lifestyle. According to some reports, this can negatively affect the flexibility of the hamstrings and, as a result, lead to a decrease in physical performance. To maintain and develop flexibility, special stretching techniques are traditionally used, which caused the point about the necessity to include them in weekly physical activity. The opposite position is that flexibility is perfectly developed and maintained through the performance of healthier types of physical activity. In this case, the flexibility of the hamstrings should be correlated with the amount of physical activity. The aim of the research was to study the relationship between the amount of physical activity of students and the flexibility of the hamstrings. To achieve this aim, a correlation study was conducted. The results of the study showed that there is a noticeable significant correlation between the total value of physical activity of students and the flexibility of the hamstrings. This, in turn, is an additional reinforcement of the position that there is no strict need to include stretching as an obligatory component of the physical activity of university students to maintain and develop the flexibility of the hamstrings.
Rhythmic gymnastics for amateurs: problems and development potential
Authors: Enchenko Irina , Lobastova Maria , Egorova Nina , Kruglova Tatiana
Published: June 2022

The authors studied theoretical foundations of amateur sport. The research was based on rhythmic gymnastics for adult amateurs. The key goal of the research was to analyse the current status of rhythmic gymnastics for amateurs, to reveal the conditions of its appearance and its development potential. The authors conducted the research in Graal rhythmic gymnastics sport club. As a result of the research the key peculiarities and problems of the development of rhythmic gymnastics for amateurs were defined. In the process of the research questionings of amateur athletes on the topic of motivation to amateur rhythmic gymnastics trainings, the problems they face in this sport, as well as their previous training and expectations from classes, were conducted. The results of this research allow to recommend these theoretical and practical materials for the specialists, who work in the sphere of physical culture and sports, and for organisations, who implement trainings for amateur athletes. It was defined that rhythmic gymnastics for amateurs is considered to be a perfect alternative to trainings in fitness clubs. Thanks to it, people have the opportunity to realise their needs both in physical activity and in achieving competitive results.
On the issue of continuity in the formation of universal competencies among school graduates and university students
Authors: Petrova Tatyana , Orlov Andrey , Talantseva Valentina , Shilenko Olga , Altynova Nadezhda , Peshkumov Oleg
Published: June 2022

In recent years, the issues of preserving the health of the population and prevention of certain diseases leading to a significant deterioration in the life quality and human activity have been keenly discussed all over the world. This circumstance has significantly activated the scientific research in development and testing of educational programs, which are based on the development of the need for systematic independent physical exercises that contribute to the formation of general cultural competencies among students of educational institutions. At the same time, the level of formation of this knowledge, skills and abilities should contribute to the further continuous process of formation of universal competencies in physical culture and sports of university students. This paper aims to analyze and experimentally substantiate the need for continuity in the formation of universal competencies among schoolchildren and university students in physical culture, as the basis for successful professionally applied physical training of future specialists in various fields of economics. The conducted research shows the need to improve the organizational and content provision of physical culture in general education institutions to increase the effectiveness of organized physical culture classes, and to improve the quality of the formation of general cultural competencies (knowledge, skills, abilities).
Evaluation of the antioxidant status and design of the diet for sports nutrition
Authors: Eliseeva Svetlana , Smolentceva Alla , Zhilinskaya Nadezhda , Barsukova Natalya , Kushcheva Natalia
Published: June 2022

The article considers the possibility of developing a diet that provides an athlete with an adequate level of biologically active substances with an antioxidant effect. The losses of the total content of antioxidants in the composition of food products of plant origin during heat treatment in a steam convection apparatus were determined and amounted to 16.9 in heat-treated beets; 14.8% in cabbage; 34.6% in potatoes and carrots; 20.5% in onion; 22.7% in root celery; 23.5% in tomato paste; 48.5% in oatmeal; 29.9% in buckwheat. The calculation of the total antioxidant content in culinary products from vegetables and cereals showed that serving a traditional dish can provide from 1.5% to 5.7% of the recommended daily requirements (1094 mg/day) in antioxidants. The combination of vegetables with prunes and blueberries made it possible to obtain products with a functionally significant content of antioxidants. A daily diet for athletes of cyclic sports in the recovery stage of training with a calorie content of 4000 kcal was developed. The diet provides 145% of the adequate intake of antioxidants for a healthy adult. The results obtained confirm the position of many sports nutritionists that a well-balanced diet, proper selection of food products, and innovative methods of heat treatment can provide an athlete with an adequate amount of antioxidants.
The role of eco-industrial parks in promoting circular economy technologies in the regions
Authors: Starodubova Anna , Iskhakova Dinara , Misbakhova Chulpan
Published: June 2022

The authors proposed a method for evaluating the relationship between eco-industrial parks with circular economy technologies. The novelty of the study was the introduction of a new term, the specialization index of circular economy technologies for eco-industrial parks. The authors proposed an algorithm for calculating this index. It is based on four types of technologies: waste treatment, industrial symbiosis, water resource efficiency, and renewable energy. The authors conducted a correlation analysis of 15 regions for 2021. Eco-industrial parks appeared due to the development of circular economy technologies. The balance of demand and supply formed only for waste treatment technologies as of 2021. The industrial symbiosis technology is at an average level in industrial parks. In 2021, markets for water efficiency and renewable energy technologies began to emerge. Ecoindustrial parks must implement the full range of circular economy technologies. This will make it possible to achieve the goals of sustainable development.
Beekeeping and honey production in Russia
Authors: Kostenko Olga
Published: June 2022

Honey occupies a special place in the diet due to its functional and medicinal properties. Honey consumption is significantly below the level recommended both in Russia and in the world. It is possible to significantly increase honey consumption both in the internal and foreign markets. The research aims to analyze and identify problems, obstacles and driving forces in the development of beekeeping in the case of Russia. Analysis showed that 18 Russian regions are focused on the export of honey to interregional and foreign markets. The beekeeping sector faces significant challenges in honey selling. The adulterated honey share is estimated at 30%. More than half of the honey on the Russian market is sold through direct short channels. Promoting products to metropolitan and foreign markets requires new approaches to building supply chains: data on apiaries and honey quality; optimizing supply chains and income distribution by chain links. The industry drivers can be a cluster approach; digital technologies to solve specific industry issues; new approaches in support of the industry by state.
Technologies of obtaining concentrated molasses from cereal grain raw material
Authors: Aksenov V.V. , Politov A.A
Published: June 2022

Results of the studies of processes involved in obtaining concentrated molasses from the grain raw material (wheat) are reported. One of the methods to enhance grain concentration for obtaining molasses is the introduction of the stage of additional treatment of grains. Grain irradiation by the infrared light was used as the preliminary treatment. It is established that IR irradiation of grains causes a decrease in strength-related characteristics, violation of the integrity of grain hulls, as well as partial destruction of starch granules in grains. These transformations simplify subsequent enzymatic hydrolysis of cereal starch, which makes it possible to increase the concentration of grain raw material during production of molasses. Concentrated molasses have a higher carbohydrate content, which enables to decrease the amount of molasses per animal for feeding, and reduce the feed expenditures. Concentrated molasses can be stored for a long time. All these measures enhance the profitability of molasses production from grains. Enzymatic conversion of grains was carried out in a mechanoenzymatic reactor of original design. A conclusion is made that it is reasonable to apply the results obtained in the development of the improved technology of manufacturing concentrated molasses from different kinds of cereal grain raw material subjected to preliminarily IR treatment.
Comparative study of micronutrient content in soft rice beverages based on green and black tea
Authors: Zhilinskaya Nadezhda , Atayev Mammet , Ivanchenko Olga , Kuznetsova Tatiana , Musta Nargul , Blandov Alexandr
Published: June 2022

Soft beverages based on rice (“rice milk”) are hypoallergenic, increase immunity, supply the body with energy, and normalize the nervous system. Earlier, we developed soft rice beverage recipes based on boiled rice filtrate, green (black) tea water concentrate, stevia extract as a natural sweetener. Physico-chemical analysis of the content of micronutrients in soft rice-tea beverages was carried out. Comparative analysis of content of vitamins E (alpha-tocopherol) and C (ascorbic acid) showed that vitamins are presented in both types of beverages during production, but in different amounts. The rice beverage combined with green tea concentrate contains 1.33 times more potassium ions and 1.13 times less magnesium ions than the beverage based on black tea. The rice beverage combined with black tea contains 3.81 times more sodium ions compared to the beverage based on green tea. There were no significant differences in the number of magnesium ions. Both samples contained traces of manganese and iron ions. The produced soft rice-tea beverages with stevia extract could be recommended as a functional food.
Analysis of the probiotic activity of Bacillus velezensis RT-26 strain isolated from reindeer rumen by whole-genome sequencing
Authors: Ilina L.A. , Filippova V.A. , Ponomareva E.S. , Brazhnik E.A. , Dunyashev T.P. , Laishev K.A.
Published: June 2022

The paper analyses the properties of Bacillus velezensis RT-26, a probiotic strain isolated from reindeer rumen, which has high activity towards fiber degradation, against bacterial and fungal pathogens. The analysis was performed using whole-genome sequencing of the strain using the Illumina platform. The study revealed that strain RT-26 possessed a complete set of metabolic pathways, including glycolysis, the tricarboxylic acid cycle, and the pentose phosphate pathway. 411 genes were involved in carbohydrate metabolism in the strain genome, 229 genes were related to vitamin and coenzyme metabolism, 149 genes were involved in fatty acid metabolism. The synthesis pathways of various amino acids, most B vitamins (thiamine, riboflavin, nicotiamide, vitamin B5) were identified in the genome. A complete pathway for synthesis of the dipeptide antibiotic bacilisin was detected in the strain. In addition, the strain is capable of synthesizing class A beta-lactamase. No genes responsible for the degradation of mycotoxins and xenobiotics were detected in the genome of the strain studied. A number of glycosyl hydrolase families were detected in the strain genome: GH 1, 3, 4, 5, 6, 11, 13, 16, 18, 20, 23, 26, 28, 30, 32, 43, 46, 51, 53, 68, 68, 73, 101, 109, 126. Carbohydrate-binding proteins were of the SVM 50 family. Glycosyltransferases were of GT 1, 2, 4, 8, 26, 28, 30, 51, 83 families. In the genome of Bacillus velezensis strain RT-26, cellulases related to families GH 5, 6, 26, 51, chitinases related to families GH 18 and 23, and xylanases related to families GH 1, 3, 4, 16, 30, 43 were found. Thus, strain B. velezensis RT-26 has several phenotypically and genotypically proven properties that can characterize it as a good probiotic microorganism.
Composition and functions of rumen and endometrial microorganisms associated with endometritis in dairy cows
Authors: Yildirim E. A. , Brazhnik E. A. , Ilina L. A. , Laptev G. Yu. , Filippova V. A. , Kalitkina K. A.
Published: June 2022

Despite the attention given in the recent years to the microbiological causes of endometritis and the potential sources of uterine microbiota infestation, more questions than answers remain in this research field. This paper describes an experiment carried out at the livestock farm of the Leningrad region on 6 dairy cows of the Holsteinized Russian Black Pied breed of the second lactation in the period after calving. The animals were divided into two groups (n = 3): Group 1 included clinically healthy animals, Group 2 included animals diagnosed with purulent-catarrhal post-calving endometritis. Metagenomic sequencing was performed using the MiSeq genomic sequencer (Illumina, Inc., USA) with the MiSeq Reagent Kit v3 (Illumina, Inc., USA). Based on the next-generation sequencing of microbiota of endometrial scrapings, 7 phyla of microorganisms were detected in clinically healthy cows and only 4 phyla of microorganisms in cows diagnosed with endometritis. The increase in the proportion of Fusobacteriota taxon bacteria permanently present in endometrial scrapings and the decrease in Bacteroidota phylum bacteria in the group of animals with endometritis could be related to the occurrence of this disease. Bacteria Alloprevotella, Campylobacter, Caviibacter, Falsiporphyromonas, Veillonella present only in the endometrial tissue of sick cows may be the etiological origin of endometritis. In the rumen of animals with endometritis, there was an increase in Bacteroidota phylum microorganisms (p≤0.05) against a decrease in Firmicutes phylum bacteria (p≤0.05) compared to the clinically healthy group. Using the PICRUSt2 software package (v.2.3.0), it was shown that the microbiome of cows diagnosed with endometritis showed inhibition (p≤0.05) of the potential of 9 metabolic pathways compared to healthy animals. This could have negative consequences for the body of animals and be a consequence of metabolic disorders.
Local materials, between regional diversity and energy performance to build efficient buildings in a transborder context (Morocco-Spain)
Authors: Kouzzi Salma , El Ganaoui Mohammed , Kheiri Abdelhamid , El Bouardi Abdelmajid
Published: June 2022

Located on the Southern shore of the Mediterranean, and at the same time at the gates of Europe and the North of the African continent, Morocco is distinguished by its richness in terms of climate and geography which constitute specific features providing a diversity of local materials required in the eco-construction and renovation. In this regard, the Kingdom of Morocco has launched a transition to a new development model that is more respectful of its human and natural resources through the strategy of energy and energy efficiency. This leads it to deploy an important part of research and development to choose innovative and pragmatic solutions adapted to different sectors. Including the building and thermal comfort. The innovative solutions are based on the choice of an energy mix associated with local materials. The objective of this communication is to realize the variety of materials potentially available in the northern region of Morocco and to evaluate their contribution in terms of thermal comfort and by listing the constraints of short circuit, environmental preservation and possible fields (concrete, wood, bricks...). Then comes the scientific contribution which consists in quantifying, characterizing, understanding and certifying between Universities and other organizations. Focusing on multi-physical characterization methods. The reflection closes with a study about the cost and the global socio-economic benefits of this approach and the implementation of a methodology for the selection of eco-materials in order to establish later a chain of eco-renovation and eco-construction operating on the trans-border area of northern Morocco.
Simple FCS-MPC Method for Reducing Common-Mode Voltage in a Three-Phase Two-Level Voltage Source Inverter
Authors: Abdelaziz Fatima , Azzouz Zin-Eddine , Omari Abdelhafid
Published: June 2022

Common mode voltage (CMV) causes various issues, including a negative impact on the performance of a hybrid electric vehicle’s power system (HEV). Many papers have published methods that mitigate CMV, almost all of which attempt to avoid zero vectors, but this increases total harmonic distortion (THD). This work describes a simple and efficient method for reducing CMV in a two-level three-phase voltage source inverter (VSI) with an RL load. This method uses only active vectors. It replace the zero vector with the two opposite vectors V2 and V5. for T1 and T2 respectively in a one sampling period Ts. A numerical simulation, using Matlab-Simulink. is achieved to assess the effectiveness of the proposed control technique. The obtained results show a reduction in THD value (17% improvement) and a decrease in the peak value of CMV from (${{ + {V_{dc}}} \over 2}$ and ${{ - {V_{dc}}} \over 6}$) to $\pm {{{V_{dc}}} \over 6}$. These results are compared to those obtained by using the traditional predictive control model MPC.
Current Status of Carbidic Austempered Ductile Iron
Authors: Yang Penghui , Wang Rong , Fu Hanguang , Absi Rafik , Bennacer Rachid , Darcherif A.-Moumen
Published: June 2022

Grinding balls in wet ball mill are important consumables in mine grinding equipment, which have poor wear resistance and large consumption. It is imperative to find excellent wear-resistant materials for the grinding balls. Carbidic Austempered Ductile Iron (referred to as CADI) was used as small and medium-sized wet ball mills. This grinding ball has the advantages of less wear, low crushing rate, power saving and low noise. However, the CADI grain boundaries are distributed with net-like eutectic carbides, which seriously damage the continuity of the matrix. In addition, the mechanism of corrosion wear and impact fatigue is lack of research due to complex phase composition and unclear mechanism of phase properties on improving performance. So CADI can’t be applied to the grinding balls in large wet ball mill. Based on the above problems, this paper first analyzed the heteronucleation mechanism and adsorption mechanism of M3C type carbides by using the first principle of microalloying elements, and then verified it by combining with experimental results. Then the thermodynamics and kinetics of austenite homogenization and isothermal transformation of ductile iron containing carbides were analyzed by means of modeling calculation and experiment. On this basis, a new type heat treatment process comprising super-high temperature pretreatment and austempering treatment (S&A treatment) was used to process CADI, which provides a new idea for further improving toughness of CADI. Finally, the CADI corrosion wear and impact fatigue failure mechanism were revealed by analyzing the change rule of the sample surface and cross section after corrosion wear and impact fatigue.
Toughness and fracture mechanism at low temperature of offshore engineering steel at different welding heat inputs
Authors: Liu Dekun , Yang Jian , Zhang Yinhui
Published: June 2022

The microstructure and low temperature toughness of offshore engineering steel which has a yield strength of 420 MPa were investigated at different welding heat inputs. As the heat input is increased from 50 kJ/cm to 200 kJ/cm, the impact energy in coarse-grained heat-affected zone (CGHAZ) is decreased from 196 to 147 J at –40 ℃. The fracture is changed from ductile to quasi-cleavage and cleavage. The prior austenite grain is increased. The size and area fraction of martensite-austenite (M-A) constituents is increased, while the number density is decreased. The capability on the crack resistance is in decreasing order for fined lath bainite (LB), interlocked LB, coarsen LB and granular bainite (GB), and it is increased by the larger misorientation angle and HAGBs. As the heat input is larger than 150 kJ/cm, the crack is induced by the M-A constituent and propagates along the weak link caused by the M-A constituents. The secondary crack is mostly deflected by the larger misorientation angle larger than 45°, and the cleavage plane prefers {001} plane. Larger welding heat input decreases the CGHAZ strength, thus leads to the increase in crack tip plastic zone (CTPZ). The existence of M-A constituent and coarsening microstructure give rise to the cleavage with the larger CTPZ.
Einflussfaktoren auf Ergebnisse der Sterblichkeitsmessung in der
Corona-Pandemie: Auswertungen zur Sterblichkeit in Deutschland im Jahr
2020
Authors: Kowall Bernd , Oesterling Florian , Pflaumer Peter , Jöckel K.H. , Stang Andreas
Published: June 2022

Einleitung (Über)sterblichkeit und verlorene Lebensjahre sind
wichtige Maße für gesundheitliche Risiken durch die
Corona-Pandemie. Das Ziel dieses Beitrags ist es, methodische Faktoren zu
benennen, die die Berechnung der Sterblichkeit beeinflussen, und auf
mögliche Fehlinterpretationen von verlorenen Lebensjahren
hinzuweisen.

Methodik Standardisierte Mortalitätsratios (SMRs) können
für den Vergleich von Sterblichkeiten verwendet werden (z. B.
bedeutet ein SMR von 1,015 eine Übersterblichkeit von 1,5%, ein
SMR von 0,990 eine Untersterblichkeit von 1,0%). In dieser Studie werden
SMRs als Assoziationsmaße für die Sterblichkeit in Deutschland
mit unterschiedlicher Methodik für das Jahr 2020 berechnet. Insbesondere
wird der Einfluss unterschiedlicher Datenquellen und Referenzperioden
untersucht. Ferner wird geprüft, welchen Einfluss es auf die berechnete
Sterblichkeit hat, die steigende Lebenserwartung zu berücksichtigen.
Darüber hinaus werden publizierte Ergebnisse zu verlorenen Lebensjahren
kritisch diskutiert.

Ergebnisse Die Nutzung aktueller Daten des Statistischen Bundesamts vom
Januar 2022, in denen die Sterblichkeit für 5-Jahres-Altersgruppen
berichtet wird, führt zu höheren SMR-Werten als die Nutzung
vorläufiger Daten vom Februar 2021 mit 20-Jahres-Altersklassen
(SMR=0,997, 95% Konfidenzintervall (KI): 0,995–0,999
versus SMR=0,976 (95% KI: 0,974–0,978)). Die Wahl des
Referenzzeitraums hat großen Einfluss auf die berechnete Sterblichkeit
(für Männer: SMR=1,024 (95% KI:
1,022–1,027) mit 2019 als Referenzjahr versus SMR=0,998
(95% KI: 0,996–1,001) mit 2016 bis 2019 als Referenzzeitraum).
Analysen, in denen bei der Berechnung erwarteter Sterbefälle die
sinkende Mortalität in den Jahren 2016 bis 2019 in das Jahr 2020
fortgeschrieben wird, führen zu deutlich höheren SMR-Werten
(für Männer SMR=1,024 (95% KI:
1,021–1,026) mit, und SMR=0,998 (95% KI:
0,996–1,001) ohne Fortschreibung der sinkenden Mortalität).
Zahlen zu pandemiebedingten verlorenen Lebensjahren pro an COVID-19 Verstorbenem
sind mit Vorsicht zu interpretieren: Eine Berechnung aus der in Sterbetafeln
angegebenen verbleibenden Lebenszeit führt zu irreführenden
Ergebnissen.

Schlussfolgerung Bei Berechnung zur Sterblichkeit und zu verlorenen
Lebensjahren während der Pandemie sind eine Reihe methodischer Annahmen
zu treffen, die erheblichen Einfluss auf die Ergebnisse haben und bei der
Interpretation der Ergebnisse beachtet werden müssen.