bluuebunny/crossref_metadata_2025 huggingface dataset:
Geometrical and magnetic properties of small titanium and chromium clusters on monolayer hexagonal boron nitride
Authors: Hao Dong , Wang Yueyi , Tang Xiangqian , Zhao Xinjia , An Yang , Wang Wenyu , Li Jianmei , Shan Xinyan , Lu Xinghua
Published: January 2023

The Ti/Cr clusters, from dimers to pentamers, on a single-layer h-BN are investigated using first-principles calculations. The relatively weak interaction with the h-BN monolayer makes it possible to build versatile and interesting 3D nanostructures.
Palladium nanoparticles-confined pore-engineered urethane-linked thiol-functionalized covalent organic frameworks: a high-performance catalyst for the Suzuki Miyaura cross-coupling reaction
Authors: Shukla Falguni , Patel Miraj , Gulamnabi Qureshi , Thakore Sonal
Published: January 2023

Pore-engineered urethane-linked covalent organic framework decorated with palladium nanoparticles, acting as a highly efficient catalyst for Suzuki Miyaura Cross-Coupling reaction.
Maternal yogurt consumption during pregnancy and infantile eczema: a prospective cohort study
Authors: Tan Tianqi , Xiao Daxiang , Li Qian , Zhong Chunrong , Hu Wenqi , Guo Jinrong , Chen Xi , Zhang Huaqi , Lin Lixia , Yang Seng , Xiong Guoping , Yang Hongying , Yang Xuefeng , Hao Liping , Yang Nianhong
Published: January 2023

Key findings of the work:Maternal frequent intake of a sufficient amount (>3 times per week, or >50 g day−1) of yogurt in late pregnancy may benefit offspring by decreasing the risk of infantile eczema.
Ingestion of Lacticaseibacillus rhamnosus Fmb14 prevents depression-like behavior and brain neural activity via the microbiota–gut–brain axis in colitis mice
Authors: Zhao Hongyuan , Chen Xiaoyu , Zhang Li , Tang Chao , Meng Fanqiang , Zhou Libang , Zhu Ping , Lu Zhaoxin , Lu Yingjian
Published: January 2023

Prevention mechanism of L. rhamnosus Fmb14 on DSS-induced depression-like behaviors.
Construction of an FeNi-Mo2C@SiO2monolith electrocatalyst with an increased number of active sites and enhanced intrinsic activity toward water oxidation
Authors: Chen Huanyu , Bai Jia-Qi , Wei Yuxue , Chen Jingshuai , Sun Song , Mao Chang-Jie
Published: January 2023

A novel FeNi-Mo2C@SiO2monolith electrocatalyst was constructed to boost the OER due to the increased number of active sites and enhanced intrinsic activity.
N-Formamide as a carbonyl precursor in the catalytic synthesis of Passerini adducts under aqua and mechanochemical conditions
Authors: Salami Sodeeq Aderotimi , Smith Vincent J. , Krause Rui W. M.
Published: January 2023

N-Formamides as carbonyl precursors in the synthesis of Passerini adducts under mechanochemical conditions.
Structure and emission properties of dinuclear copper(i) complexes with pyridyltriazole
Authors: Gusev Alexey , Kiskin Mikhail , Braga Elena , Zamnius Ekaterina , Kryukova Mariya , Karaush-Karmazin Nataliya , Baryshnikov Glib , Minaev Boris , Linert Wolfgang
Published: January 2023

New highly emissive copper(i) complexes based on 3/4-pyridyltriazole have been synthesized and fully characterized. Photophysical properties and the mechanism of photo- and mechanochromic and excitation dependent luminescence are discussed.
A critical review of silicon nanowire electrodes and their energy storage capacities in Li-ion cells
Authors: Yang C. , Chandran K. S. Ravi
Published: January 2023

Si nanowire electrodes have great potential as high-capacity anodes for Li-ion batteries. This review provides a comprehensive evaluation of the Li-storage capacity of various Si nanowire electrodes based on both specific and areal capacity.
Temperature switch of electrochemical Seebeck coefficient of Fe2+/Fe3+via formation of [FeCl4]2−/[FeCl4]−
Authors: Nomura Yunika , Inoue Dai , Moritomo Yutaka
Published: January 2023

Temperature change switches the electrochemical Seebeck coefficient (α) of Fe2+/Fe3+via transformation of the electrochemically-active redox pair.
Unexpected polarization properties of sub-nanosized magnesium clusters
Authors: Ignatov Stanislav K. , Masunov Artëm E.
Published: January 2023

Isotropic electrostatic polarizability (IEP) of clusters Mgn has two properties: (1) IEP of the most favorable isomers is linearly dependent on n; (2) the most favorable clusters have nearly minimal IEP values among all other isomers of a given n.
Nickel boryl complexes and nickel-catalyzed alkyne borylation
Authors: Tendera Lukas , Fantuzzi Felipe , Marder Todd B. , Radius Udo
Published: January 2023

Nickel bis-boryl complexes cis-[Ni(NHC)2(Bcat)2], cis-[Ni(NHC)2(Bpin)2] and cis-[Ni(NHC)2(Beg)2] are presented and the nickel-catalyzed alkyne borylation is reported.
How to capture active Marangoni surfers
Authors: Tiwari Ishant , Parmananda P.
Published: January 2023

Active Marangoni surfers can be captured in the local region of the incidence of an air-draft from a micro air pump. The phenomena is observed across population size and two types of surfactant used as fuel.
Charge transfer in the Ag–polymer–fullerene system of organic solar cells (OSCs) observed by surface-enhanced Raman spectroscopy: donor/acceptor concentration-dependent
Authors: Zhang Daxin , Yang Shuo , Zhao Wenshi , Yang Lili , Wei Maobin , Chen Lei , Yang Jinghai
Published: January 2023

The charge transfer (CT) processes of the Ag–polymer–fullerene system of organic solar cells (OSCs) were monitored by surface-enhanced Raman spectroscopy technology, and the donor/acceptor concentrations selectively enhance the CT pathway.
Pseudo-multicomponent 1,3-dipolar cycloaddition involving metal-free generation of unactivated azomethine ylides
Authors: Belabbes Asmaa , Retamosa María Gracia , Foubelo Francisco , Sirvent Ana , Nájera Carmen , Yus Miguel , Sansano José M.
Published: January 2023

Thermal C–H activation of imines as a useful tool for the synthesis of potential bioactive drugs.
Detection of alkali and alkaline earth metal ions using birefringence of hyperswollen lamellar phase
Authors: Sasaki Koki , Matoba Shotaro , Uchida Yoshiaki , Nishiyama Norikazu
Published: January 2023

We propose a visual detection method using a hyperswollen lamellar phase without electric amplification. Amphiphiles with an oligo(ethylene glycol) chain can catch alkali and alkaline earth metal ions and amplify to macroscopic birefringence.
The long noncoding RNA Meg3 mediates TLR4-induced inflammation in experimental obstructive nephropathy
Authors: Yiu Wai Han , Lok Sarah W.Y. , Xue Rui , Chen Jiaoyi , Lai Kar Neng , Lan Hui Yao , Tang Sydney C.W.
Published: January 2023

Kidney inflammation contributes to the progression of chronic kidney disease (CKD). Modulation of Toll-like receptor 4 (TLR4) signaling is a potential therapeutic strategy for this pathology, but the regulatory mechanisms of TLR4 signaling in kidney tubular inflammation remains unclear. Here, we demonstrated that tubule-specific deletion of TLR4 in mice conferred protection against obstruction-induced kidney injury, with reduction in inflammatory cytokine production, macrophage infiltration and kidney fibrosis. Transcriptome analysis revealed a marked down-regulation of long noncoding RNA (lncRNA) Meg3 in the obstructed kidney from tubule-specific TLR4 knockout mice compared with wild-type control. Meg3 was also induced by lipopolysaccharide in tubular epithelial cells via a p53-dependent signaling pathway. Silencing of Meg3 suppressed LPS-induced cytokine production of CCL-2 and CXCL-2 and the activation of p38 MAPK pathway in vitro and ameliorated kidney fibrosis in mice with obstructive nephropathy. Together, these findings identify a proinflammatory role of lncRNA Meg3 in CKD and suggest a novel regulatory pathway in TLR4-driven inflammatory responses in tubular epithelial cells.
Lexical and Morphosyntactic Profiles of Autistic Youth With Minimal or Low Spoken Language Skills
Authors: Butler Lindsay K. , Shen Lue , Chenausky Karen V. , La Valle Chelsea , Schwartz Sophie , Tager-Flusberg Helen
Published: January 2023

Purpose:

Autistic youth who are minimally or low verbal are underrepresented in research leaving little to no evidence base for supporting them and their families. To date, few studies have examined the types of words and word combinations these individuals use. The purpose of this study was to take a strengths-based approach to outline descriptive profiles of autistic youth who use few words and elucidate the lexical and morphosyntactic features of their spoken language.

Method:

We analyzed language samples from 49 autistic youth ages 6–21 years who used fewer than 200 words. Systematic Analysis of Language Transcripts was used to investigate the relationship between number of different words (NDW) and proportion of nouns and verbs (vs. other word classes), mean length of utterance in morphemes (MLUm), and the frequency of early developing morphosyntactic structures. We used linear regression to quantify the relationship between NDW and lexical and morphosyntactic features.

Results:

Proportion of nouns and verbs produced did not increase significantly in those with higher NDW. Conversely, MLUm and the frequency of early developing morphosyntactic structures increased significantly in those with higher NDW.

Conclusions:

Youth with higher NDW did not produce more nouns and verbs, suggesting lexical profiles that are not aligned with spoken vocabulary level. Youth with higher NDW had higher MLUm and more early morphosyntactic forms, suggesting that morphosyntactic profiles align with spoken vocabulary level. We discuss the implications for improving clinical services related to spoken language.
MILP‐based security evaluation for AEGIS/Tiaoxin‐346/Rocca
Authors: Shiraya Takuro , Takeuchi Nobuyuki , Sakamoto Kosei , Isobe Takanori
Published: January 2023

In this paper, the security of Advanced Encryption Standard‐based authenticated encryption schemes, including AEGIS family, Tiaoxin‐346, and Rocca by mixed integer linear programming tools is examined. Specifically, for the initialisation phase of AEGIS, Tiaoxin‐346, and Rocca, the security against differential attacks and integral attacks is evaluated by estimating the lower bounds for the number of active S‐boxes and utilising division property, respectively. In addition to the estimations of initialisation phases, the security of the encryption phases of AEGIS, Tiaoxin‐346, and Rocca against distinguishing attacks on keystream is evaluated by exploiting integral properties. As a result, the authors show that the initialisation phases of AEGIS‐128/128L/256, Tiaoxin‐346, and Rocca are secure against differential attacks after 4/3/6, 5, and 6 rounds, respectively. Regarding integral attacks, the distinguisher is found on 6/6/7, 15, and 7 rounds in the initialisation phases of AEGIS‐128/128L/256, Tiaoxin‐346, and Rocca, respectively. Additionally, the integral distinguisher is presented on 2/2/4, 4, and 4 rounds in the encryption phases of AEGIS‐128/128L/256, Tiaoxin‐346, and Rocca, respectively. As far as it is known, this study’s results are the first distinguishing attacks on the keystream on AEGIS, Tiaoxin‐346, and Rocca without relying on weak keys.
Intersection capacity management: simulation model process diagrams
Authors: Chernova Vera , Laamarti Yuliya , Kolodochkin Alexey
Published: January 2023

The article describes the features of creating formal transport and pedestrian flows models for the simulation model of the road network section formed by the intersection of Aviatsionnaya and Pekhotnaya Streets in the Pokrovskoe-Streshnevo district of the North-West of Moscow (RU). The aim of the study is to create a comfortable and safe environment by building a simulation model for the implementation of different scenarios of street section transformation. Application of the structural analysis method allowed us to identify all objects and subjects, and the relations between them in the implementation of transport and pedestrian processes.
Mail client with data transfer protected with end-to-end encryption
Authors: Polozhiy Gleb , Boldyrikhin Nikolay
Published: January 2023

This article is devoted to the study of the issues of secure messaging and file exchange by e-mail at the enterprises of the agro-industrial complex. The purpose of this work is to develop an algorithmic support and software of mail client that supports the functionality of end-to-end data encryption. The following research methods are used in the article: comparison method, observation method, structural analysis method. The comparison method is used to identify differences between key distribution protocols. Methods of observation and analysis make it possible to understand the behavior of various protocols within systems that differ in technical and software properties. The article consists of four parts: Introduction, Materials and Methods, Results, Conclusions. The first part describes the relevance of the topic, discusses the features of various cryptographic protocols. The second part describes the developed algorithms that ensure the operation of the mail client and end-to-end data encryption. The third part discusses the results of software implementation of the developed algorithms. In the fourth part conclusions are made and summed up. The main results of the work are algorithmic implementation of software for local architecture based on the use of symmetric cryptography; a software tool designed according to a local scheme, including modules that allow you to develop a system on a client-server architecture.
Extra-urban territories as an adaptation resource in the context of a pandemic crisis
Authors: Khripkova Dianna , Gaidukova Galina , Khripkov Kirill
Published: January 2023

The article is devoted to the identification of the problem of reducing depopulation processes and improving demographic processes in rural areas in the context of a coronavirus pandemic. Cities have shown their vulnerability to the pandemic, and it has become a trigger for arousing interest in rural areas as promising from the point of view of residence security and development. According to the authors, it is rural territories that can act as an adaptation resource in the conditions of a pandemic crisis, but it is possible only if their infrastructure is actively developed and the state provides comprehensive support. The purpose of this article is to describe demographic and migration processes taking place in rural areas, as well as to substantiate the prospects for the development of rural areas as a resource for adaptation during the pandemic crisis. The diagnosis of the dispositions of the population regarding the problem of the development of the socio-demographic potential of rural areas was carried out on the basis of a sociological study conducted by the authors of the article in the Belgorod region in 2021, and included a mass questionnaire survey of the population (n = 1000), an expert interview (n = 37), and a series of focus group interviews. It is noted that the most important problems significantly affecting the demographic development of rural areas are the problems of underdevelopment of social infrastructure, unemployment, poor social security of the village. It is emphasized that the coronavirus and the crisis caused by it become an argument in favor of de-urbanisation and rural development. The necessity of taking a number of active measures to maintain the motives of citizens for de-urbanisation and rural development is justified.
The Russian electric car market: prospects, factors hindering industry development, specifics of component production
Authors: Smirnov Anton , Smolokurov Evgeniy , Mazhazhikhov Alim , Gareeva Lia
Published: January 2023

The article examines the general course of federal policy in the Russian Federation with regard to the development of the car market in the electric vehicle segment. Government policy should aim to reduce the percentage of vehicles with internal combustion engines (ICE). As of early 2022, projects for the production of electric cars and electric motors are being developed in the Russian Federation and are in the implementation stage. The raw material base in the Russian Federation makes it possible to produce electric vehicles and their components without exporting raw materials. The increase in mineral production is necessary to boost the rate of production of high-tech and innovative products for various industry segments. Trends in the global energy transition are reflected not only in the dynamics of the oil and gas market but also in the development of related industries. They influence the demand for different types of metals and minerals. It is well known that clean technologies require much more metals than their fossil fuel based counterparts. Rare earth metals have now become an integral part of green technology as they are widely used in wind turbine generators, engines for electric vehicles.
Correction of functional disorders of hepatobillary and gastrointestinal systems in dogs with the phenomena of malnutricia
Authors: Ushakova Tatyana , Babkina Tatyana , Fedorova Victoria , Derezina Tatyana
Published: January 2023

The correction of functional disorders of the hepatobiliar and gastrointestinal systems in dogs with the phenomena of malnutricin against the background of allergic enteropathy should be carried out comprehensively, taking into account the nature of trophological disorders and the degree of involvement in the pathological process of organs hepatobillary and gastrointestinal systems. Conducted additional nutritive support with the use of three-stage functional complex of biologically active additives based on prebiotic and probiotic components «GI-HB-3.1» as part of an integrated correction scheme in dogs contributed to the restoration of the nutritional status of sick animals, stabilization of the level of markers of malnutricia (RBC -7,030,18 1012/l; Hb - 148,033,01 g/l; HCT - 44,700,47 %; T-Pro – 68,04±0,57 g/l; ALB – 33,60±0,80 g/l; GLB – 34,440,91 g/l; A/G – 0,970,02; К - 3,980,15 mmol/l; Ca - 2,540,05 mmol/l), solution of inflammatory process in gastrointestinal tract (WBC - 11,100,74×109/l), optimization of hepatocyte redox-homeostasis (АLТ - 60,70±5,03 U/l; АSТ - 30,58±5,08 U/l; ALP - 87,038,69 U/l) and protein and energy exchange indicators (T-Pro – 68,04±0,57 g/l; GLB – 34,440,91 g/l; A/G - 0.970.02) against the background of the optimization of the immune response (Ig E - 5.760.30 U/ml), the disappearance of the manifestation of gastrointestinal and hepatocapular syndromes on the 15th day of complex correction.
Hotel business: customer loyalty management
Authors: Kuzubov Alexey , Maksimenko Aleksandr
Published: January 2023

The relevance of the chosen direction of the research is due to the need to develop modern marketing management technologies for the adaptation, survival and further development of hotel and restaurant industry, taking into account the fact that the current situation characterized by a socio-economic crisis, has been aggravated by the consequences of the COVID-19 coronavirus pandemic, which together led to new challenges in the hotel and restaurant industry. The hotel and restaurant product is presented as a combination of material product, services and atmosphere, which together form a unique selling proposition in the hotel and restaurant industry. With this in mind, it is reasonable that consumer loyalty to establishments of the hotel and restaurant industry is characterized by customer satisfaction, adherence, advocacy and impressions, which together reflect the perception of the establishment, attitude towards it and future intentions. The use of the proposed scientific and practical approach will make it possible to determine the level of customer loyalty in the hotel and restaurant industry as a whole and for each of its characteristics, to make justified management decisions in accordance with the stage of customer loyalty formation. In order to increase customer loyalty in the hotel and restaurant industry in today's changing situation and conditions of uncertainty, a number of practical recommendations are given to ensure the unique competitive advantages of the hotel product, the introduction of modern information technologies, and improvement of the service quality.
Discourse approach in teaching foreign language professional communication
Authors: Asten Tamara
Published: January 2023

This study presents the most important conceptual foundations of the organization of teaching a foreign language to university students regarding the improvement of the quality, efficacy of the content and the basic components of the system used for its implementation in order to form and develop the necessary level of competency. The purpose of the research is to develop and verify the educational system of organizing foreign language teaching for specific purposes of university students using a discourse approach that includes the use of features of professional, academic, official-business and pragmatic discourses. To achieve the aim, the following objectives were set up and solved: 1) to analyze the types of discourse and present a descriptive model of the discursive approach in teaching a foreign language to students of a technical university for specific purposes; 2) to conduct an aspect analysis of the educational discourse on a foreign language for specific purposes of students of a technical university; 3) to organize experimental work related to obtaining an evidence base regarding the effectiveness of the proposed comprehensive system of organizing foreign language teaching for special specific purposes of students of a technical university on the basis of a discourse approach. The methodology of the research covers the pedagogical foundations of the technological approach to the educational process and its organization; the concept of professional competence and intercultural communication; the provisions of discursive discourse linguistics; scientific works in the field of continuing education. The study presents didactic units for inclusion in the content of training, educational programs, teaching aids and textbooks on a foreign language for specific purposes. The results of theoretical research made it possible to develop and apply in the experimental part of the study the authors’ course, a training program and an educational and methodological manual for students.
How to ensure environmental security and functioning of unique environmental assets via examples of the Russian Federation and Rostov Region
Authors: Ovchinnikova Natalia , Vodolazskaya Tatyana
Published: January 2023

Since ancient times, humans have been the most powerful transformers of the natural environment of all living creatures. Since prehistoric times, human activity has changed the boundaries of natural areas and their entire complexes, fundamentally changing the appearance of natural ecosystems and landscapes. But the changes in nature have never been as fast as in the industrial era of the human civilization. Today, the natural environment is changing so rapidly under human impact that a large proportion of species and ecosystems do not have time to adapt to these changes in any way and, as a result, find themselves under threat of extinction. It is the fear of permanently losing natural ecosystems and landscapes that has led to the emergence of specially protected areas, where any economic activities that threaten the nature are banned or restricted. Anthropogenic impacts and human activities have had a negative impact on the environment not only in RF subjects, but also in Rostov region. The principles of environmental safety and functioning of specially protected natural areas are based on basic provisions of the Constitution of the Russian Federation as well as on the norms of environmental law. The situation in Rostov region forces us to pay close attention to the problem of conservation and restoration of biodiversity and wildlife resources. At the moment, the development of environmentally sensitive areas on the Don is one of the most effective ways of conserving and restoring the nature world of the Rostov region.
Conditions for the effective use of milking machines
Authors: Kokieva Galia , Kurochkin Boris , Ivanova Marfa , Fedorova Alexandra , Timofeeva Kyunne , Borisova Irina
Published: January 2023

On dairy farms with a small number of livestock, it is not always profitable to use expensive high-performance machines and equipment. Here, it is more rational to use easy-to-maintain means of small mechanization, which significantly facilitate the work of the farmer, requiring low operating costs. milk production, in turn, is closely related to the method of keeping livestock. This method is a non-binding box method, in which, as domestic and foreign experience shows, labor costs are reduced several times. A significant increase in labor productivity in dairy cattle breeding provides, first of all, the development and implementation of advanced technologies in practice. Machine milking facilitates the work of operators and increases productivity, allows you to get clean, high-quality milk at a low cost. During milking cows, the service personnel must constantly monitor the process, do not miss its completion, turn off and remove the milking machine in time. Overexposure of it on the udder nipples after the end of milk excretion causes pain in the cow, a decrease in milk output, increases the duration of milking, leads to injury to the nipples, initiates mastitis disease. Technologies of industrial milk production the equipment used does not fully meet the zootechnical requirements for productivity, energy and metal consumption, reliability. Serial equipment is structurally difficult, the complexity of maintenance of automation tools for machine milking processes is great. The study of the technological process of machine milking shows that labor productivity at all milking plants depends primarily on the duration of manual operations and the time of milking cows. The article describes the automation of the milking process.
Automated system for identifying fields during grain harvesting using satellite navigation and RFID to meet the new requirements of russian legislation on the traceability of grain batches and products of its processing
Authors: Elizarov Petr , Volkov Igor
Published: January 2023

With the entry into force of the Decree of the Government of the Russian Federation on the traceability of grain, agricultural producers are obliged to promptly enter data on the grain harvested from the fields and the place of its storage into the information system. For guaranteed data entry, it is proposed to implement, in parallel with the existing procedure, a grain receipt accounting system based on tracking the geolocation of the place of grain reloading from the combine into vehicles for transportation with related data. The system includes a software and hardware complex for collecting, storing, processing information during harvesting and transferring the received data to the information system. The hardware part of the system is a device for determining the location, data exchange and an information storage unit, which are installed on vehicles (combine harvesters, harvesters, trucks), weighing stations, grain storage places. The software part includes a database of all objects in the field, fields and grain storage areas, a data processing module according to the described algorithms and an interface for interacting with the information system.
Arachnoentomoses of domestic carnivores and effectiveness of insacar total in dogs otodectosis
Authors: Shadyeva Ludmila , Romanova Elena , Shlenkina Tatyana , Romanov Vasily
Published: January 2023

The research analyzes the epizootological features of arachnomyioses of domestic carnivores of different species on the territory of cities in the Middle Volga region. With varying degrees of extensive invasion, this group of diseases consisted of sarcoptic mange of dogs, ear mange of dogs and cats, demodecosis of dogs, notoedric mange of cats and aphanipterosis of animals. The authors studied the seasonal, age and breed dynamics of sarcoptic mange of dogs, notoedric mange of cats, demodectic mange of dogs and aphanipterosis of cats. The authors established the peaks of invasion in arachnomyioses of various species of domestic carnivores, identified the most vulnerable age groups of animals to diseases. The analysis of the breed predisposition of animals to this group of diseases and the distribution of sick animals by sex was carried out. It is established that arachnomyioses are characterized by regional epizootological features. A new drug Insakar Total C, developed by the staff of FGBNU FNC VIEV RAS (Moscow) for ear mange of dogs, was tested. The research was carried out on dogs of the shelter for homeless animals "Paw of Help" at the Ulyanovsk SAU. During the test, it was found that Insakar Total C shows 100% therapeutic effectiveness in ear mange of dogs of moderate severity. The use of the drug, according to the instructions and instructions, completely frees sick animals from ticks- ear mange. The research was carried out with the grant support of the Ministry of Agriculture of the Russian Federation.
Influence of the use of spore-forming bacteria with probiotic properties on the quality and safety of food
Authors: Proskurina Lyudmila , Rafikova Khabiba , Berseneva Svetlana , Belov Alexander , Repsh Natalia
Published: January 2023

The paper discusses the prospects for the use of probiotic drugs as an alternative to growth-stimulating antibiotics, which, according to current scientific research, have shown themselves as drugs that allow getting livestock and poultry products that are safe in all respects. The results of the conducted studies allow drawing conclusions about the biological safety of probiotics in terms of its residual amount in the tissues of slaughter animals, which excludes a negative effect on the consumer's body.
Development of a technology design model for a science-intensive product
Authors: Golovin Dmitry , Deniskin Yury , Sklyarov Kirill , Vasilyeva Olga
Published: January 2023

The paper deals with the issues of ensuring the required quality of products at various stages of the life cycle. It is shown that significant progress in solving this issue can be achieved through the implementation of the concept of CALS / FDI technologies, which is due to the use of an integrated information environment that allows you to organize information support in a new way in the technological design of complex and / or high-tech products. To implement the technological design model, such design levels as strategic (target) and detailed (operational, tactical) planning were considered, which made it possible to form a model for the formation of a set of technological solutions, which in turn made it possible to form a mathematical model of the information image of processes and objects for an idealized object. As a result, a model of multi-criteria evaluation and technological decision-making was developed based on the hierarchy analysis method.
Auditing the estimated cost of construction of transport infrastructure facilities
Authors: Bovsunovskaya Maria , Kurtina Daria
Published: January 2023

The paper is devoted to the study of the audit of the estimated cost of construction of transport infrastructure facilities. Since it is the study of the estimate documentation for the correctness and accuracy of the application of prices and scope of works that makes it possible to ensure the expediency of using funds, avoid financial losses and achieve high-quality project implementation. The authors justified the need for an audit, identified its stages and their content. An algorithm for checking local estimates during an audit of the estimated cost has been compiled. Specific examples of analyzing the positions of the estimate documentation during the audit of the estimated cost of construction of transport infrastructure facilities are given, deviations in the composition of local estimates are identified, recommendations are given based on the results of the audit.
Sediment from clarification facilities for wash water of stations using PolyDADMAX
Authors: Butko Denis , Shutskaya Еlena , Shishova Oksana
Published: January 2023

Natural water treatment plants at surface water sources generate significant amounts of precipitation. The physical properties of sediments of washing waters of fast filters, clarifying water using the PolyDADMAX flocculant, were determined. A change in the specific filtration resistance during the measurement process was established, as well as the possibility of determining the physical properties of the sediment not only directly, but also indirectly. Various levels of correlation of physical properties among themselves are established.
The Problem of Stability of Gas-Condensate Mixture at Pore-Scale: The Study by Density Functional Hydrodynamics
Authors: Dinariev Oleg , Evseev Nikolay , Klemin Denis
Published: January 2023

The method of the density functional hydrodynamics (DFH) is used to model compositional gas-condensate systems in natural cores at pore-scale. In previous publications, it has been demonstrated by the authors that DFH covers many diverse multiphase pore-scale phenomena, including fluid transport in RCA and SCAL measurements and complex EOR processes. The pore-scale modeling of multiphase flow scenarios is performed by means of the direct hydrodynamic (DHD) simulator, which is a numerical implementation of the DFH. In the present work, we consider the problem of pore-scale numerical modeling of three-phase system: residual water, hydrocarbon gas and hydrocarbon liquid with phase transitions between the two latter phases. Such situations happen in case of gas-condensate or volatile oil deposits, in oil deposits with gas caps or in EOR methods with gas injection. The corresponding field development modeling by the conventional reservoir simulators rely on phase permeabilities and capillary pressures, which are provided by laboratory core analysis experiments. But the problem with gas-liquid hydrocarbon mixtures is that in laboratory procedures it may be difficult or even impossible to achieve full thermodynamic equilibrium between phases as it must be under the reservoir conditions of the initial reservoir state. However, reaching the said equilibrium is quite possible in numerical simulation. In this work, the gas-liquid mixture, after being injected into core sample, would slowly undergo the rearrangement of the phases and chemical components in pores converging to the minimum of the Helmholtz energy functional. This process is adequately described by DFH with consequent impact on phase permeabilities and capillary pressure. We give pore-scale numerical examples of the described phenomena in a micro-CT porous rock model for a realistic gas-condensate mixture with quantitative characterization of phase transition kinetic effects.
In-situ characterization of capillary pressure during three-phase flow in porous media
Authors: Zankoor Ahmed , Khishvand Mahdi , McCaskill Bradley , Piri Mohammad
Published: January 2023

We characterize the pore-scale fluid distributions, phase connectivity, and local capillary pressures during three-phase flow in a water-wet Berea sandstone sample. In this investigation, we use a set of x-ray micro-tomography images acquired during three-phase core-flooding experiments conducted on a miniature core sample. We use several image analysis techniques to analyze the pore-scale fluid occupancy maps and use this information to develop several insights related to pore occupancy, oil and gas cluster distribution, and interfacial curvature during the gas injection process. The results of our investigation show that the large-, intermediate-, and small-sized pores are mostly occupied with gas, oil, and brine, respectively, which is consistent with the wetting order of the fluids (i.e., gas, oil, and brine are the nonwetting, intermediate wetting, and wetting phases, respectively). In addition, the connectivity analysis reveals that a significant amount of the gas phase was in the form of disconnected ganglia separated from the connected invading cluster. The presence of these trapped nonwetting phase clusters during the drainage process is presumably attributed to Roof snap-off and Haines jump events, as well as the anti-ripening phenomenon. Moreover, the average local oil-water capillary pressures are found to be greater than the gas-oil counterparts. This observation is then related to the relative location of the interfaces in the pore space and the threshold capillary pressures at which the various displacement events take place.
Monitoring fluid migration using in-situ nuclear magnetic resonance core flooding system integrated with fiber optic sensors: A proof of concept
Authors: da Silva Falcão Bruno , Esteban Lionel , Giwelli Ausama , Kovalyshen Yevhen , Banks Stephen , Al-Yaseri Ahmed , Keshavarz Alireza , Iglauer Stefan
Published: January 2023

In-situ nuclear magnetic resonance (NMR) core flooding system has enabled researchers to monitor several rock properties such as porosity, pore size distribution, and fluid saturation along the tested samples with high resolutions and under reservoir conditions. However, spatially resolved rock strength/mechanical property alteration coupled to fluid migration/substitution remains poorly characterized. To this end, Fiber Bragg Grating (FBG) multiplex sensors were integrated with NMR core flooding system to monitor rock strength changes, or generally speaking, to observe hydro-mechanical-chemical coupling mechanisms during core flooding tests. In this study, we present a novel approach on how to conduct core flooding experiments, while simultaneously monitoring NMR and FBG strain response of the tested limestone plug. The NMR cell was modified to integrate FBG technology without impeding the NMR signal and core flooding high pressure/temperature capacity. A high spatial resolution optical fiber was attached onto the sample radial surface. The results show the successful association of NMR and FBG sensors to track any change at each stage of brine injection. The FBG is capable of measuring the rock strain variations induced by rock-fluid interactions during brine injection, allowing it to capture the fluid front location along with the sample and at a faster rate than the NMR.
Rate-Controlled Mercury Injection Experiments to Characterize Pore Space Geometry of Berea Sandstone
Authors: Mahmud Walid Mohamed
Published: January 2023

Interpretation of the relationship between heterogeneity and the flow in porous media is very important in increasing the recovery factor for an oil or gas reservoir. Capillarity for instance, controls fluids static distribution in a reservoir prior to production and remaining hydrocarbons after production commences. Therefore, capillary pressure data are used by petroleum engineers, geologists, and petrophysicists to evaluate production characteristics of petroleum accumulations. Conventional pressure-controlled mercury porosimetry produces an overall capillary pressure curve and pore throat size distribution data that provide little information about the porous medium structure and pore geometry. The present study provides information on three capillary pressure curves obtained from rate-controlled mercury injection porosimetry; one describes the larger pore spaces or pore bodies of a rock, another describes the smaller pores or pore throats that connect the larger pores, and a final curve which corresponds to the overall capillary pressure curve obtained from the conventional pressure-controlled mercury injection. An experimental constant-rate mercury injection apparatus was constructed that consists of a piston displacement pump, a computer controlled stepper motor drive and a core sample cell designed to minimize dead volume. The apparatus was placed in a glass chamber and subjected to an air bath to maintain a constant temperature of 27o C throughout the experiments. Then constant rate mercury injection experiments were performed on three Berea Sandstone core plugs. Results show that volume-controlled or rate-controlled porosimetry provides considerably more detailed data and information on heterogeneity and the statistical nature of pore space structure than the conventional pressure-controlled porosimetry as pressure fluctuations with time reveal menisci locations in pore bodies and pore throats. Moreover, pore size distributions based on volume-accessed pores and pore radii were obtained from the pressure versus saturation relationship.
Field-aligned scale length of depleted structures associated with post-sunset equatorial plasma bubbles
Authors: Xiong Chao , Lühr Hermann
Published: January 2023

In this study we make use of the Swarm counter-rotation constellation for estimating the typical scale length of the post-sunset equatorial plasma bubbles (EPBs) along fluxtubes. The close approaches between Swarm spacecraft near the equator occurred in September and October 2021, covering the magnetic local time from 19:00 to 23:00, which is favorable for the occurrence of EPBs. It is the first time to show the quasi-simultaneously samplings by Swarm A/C and B of the same fluxtube but at different altitude. The observations frequently reveal plasma density depletions only at one spacecraft altitude, confirming that EPBs extend only over finite parts of the fluxtube. Based on a statistical analysis of double and single EPB detections on the same fluxtube, our results imply the typical field-aligned scale length of the depletion structures associated with EPBs of the order of 550 km. Our detections are from the lower part of the depleted fluxtubes, and they coincide well with the latitudes of the equatorial ionization anomaly. In the upper part of the fluxtube near the magnetic equator, our estimation technique does not work well because of too large field-aligned spacecraft separation of the Swarm satellites.
Konkremente des Tränenapparates
Authors: Stein Marlene , Bethmann Daniel , Viestenz Arne , Wickenhauser Claudia , Struck Hans-Gert , Heichel Jens
Published: January 2023

Konkremente des Tränenapparates, sog. Dakryolithen, können an unterschiedlichen Lokalisationen auftreten und führen zu verschiedenen klinischen Zeichen. Gemeinsam ist das Auftreten
chronischer Entzündungen, die akut exazerbieren können. Anhand einer Literaturrecherche sowie deskriptiver Vorstellung und Korrelation der Klinik mit histopathologischen Befunden sollen die
wichtigsten Informationen zur Epidemiologie, Ätiopathogenese, Zusammensetzung, Histologie und Therapie gegeben werden. Weiterhin werden die bekannten Einflussfaktoren zur Lithogenese im
Tränensack zusammengefasst. Konkremente der Tränendrüse zeigen eine Schwellung im Bereich des lateralen Kanthus. Die häufig nur mit leichten Schmerzen einhergehende Veränderung führt oft
auch zu einer umschriebenen konjunktivalen Hyperämie. Histologisch ist das Gewebe der Tränendrüse von einer akut-erosiven bis chronischen Entzündungsreaktion gekennzeichnet. Die Konkremente
bestehen aus amorphem Material. Das entzündliche Infiltrat ist von neutrophilen Granulozyten dominiert. Tränenröhrchensteine sind in hohem Maße mit dem klinischen Bild einer chronischen
Kanalikulitis assoziiert. Klinisch liegen zumeist eine Epiphora und ein purulenter Sekretausfluss im Bereich des betroffenen Tränenröhrchens vor. Die Konkremente der Tränenröhrchen weisen
typischerweise Actinomyces-Drusen auf. Das umgebende Gewebe reagiert mit einer plasmazellulären sowie granulozytären Infiltration. Dakryolithen (Konkremente des Tränensackes) manifestieren
sich im Rahmen einer Dakryozystitis, wobei hier sowohl akute als auch chronische Entzündungen vorkommen. Sie werden in bis zu 18% der Dakryozystorhinostomien gefunden und stellen eine große
diagnostische Herausforderung dar. Wiederkehrende episodenhafte Epiphora mit mukopurulenter Sekretion und akuter Dakryozystitis sind typisch. Zumeist besteht eine Spülbarkeit der ableitenden
Tränenwege. Histologisch imponiert ein lymphozytäres Infiltrat mit submuköser Fibrose. Unmittelbar angrenzend zu den Konkrementen finden sich Zeichen einer akuten Entzündungsreaktion. Das
therapeutische Mittel der Wahl ist die Extraktion der Konkremente und die Beseitigung der Tränenabflussstörung, da hierin ein wichtiger Faktor zur Entstehung gesehen wird.
Lower Eyelid Blepharoplasty: Minimizing Complications and Correction of Lower Eyelid Malposition
Authors: Sobti Manvi , Joshi Naresh
Published: January 2023

Lid retraction is a feared complication of lower blepharoplasty. Anatomical variations like negative orbital vector, horizontal lid laxity, and preexisting lid retraction are more prone to lid malpositions. Meticulous and precise execution of a series of surgical steps is key to preventing complications. This includes minimizing surgical trauma, meticulous hemostasis, preserving innervation to the medial lid and pretarsal orbicularis, safe method of fat excision, septal tightening while maintaining lid traction, and conservative and titrated skin excision. Canthal fixation addresses lid laxity and maintains the lid stretched vertically while postoperative healing and fibrosis are taking place. Post-blepharoplasty lid retraction may occur due to failure to address lid laxity and the occurrence of middle lamellar fibrosis. Excessive skin excision may also result in anterior lamellar deficiency. The “sag and drag” concept is useful to evaluate the post-blepharoplasty retracted lid. The treatment of the retracted lid includes lid massage, replacing the anterior lamella, or releasing the middle lamellar fibrosis or a combination of techniques. In conclusion, understanding the mechanisms of lid retraction, careful preoperative assessment, and surgical precision will help surgeons to prevent and manage this complication.
Exploring the impact of functional, symbolic, and experiential image on approach behaviors among state-park tourists from India, Korea, and the USA
Authors: Singh Nripendra , Yu Jongsik , Ariza-Montes Antonio , Han Heesup
Published: January 2023

This study provides insights into the influence of state park image, visitor emotions, and place identity on visitors’ revisit intentions by considering the moderating impact of national culture. A quantitative process with the data collected in India, Korea, and the US was used. Hierarchical regression analysis evidences the moderating role of national culture, which is hardly explored in the state park context. Results confirm that most hypotheses are fully or partially accepted, which suggests that brand image and national culture influence visitor intention. This study helps practitioners better understand the relevance of national culture in developing appropriate visitor attraction/retention strategies.
Numerical study of magnetic island coalescence using magnetohydrodynamics with adaptively embedded particle-in-cell model
Authors: Li Dion , Chen Yuxi , Dong Chuanfei , Wang Liang , Toth Gabor
Published: January 2023

Collisionless magnetic reconnection typically requires kinetic treatment that is, in general, computationally expensive compared to fluid-based models. In this study, we use the magnetohydrodynamics with an adaptively embedded particle-in-cell (MHD-AEPIC) model to study the interaction of two magnetic flux ropes. This innovative model embeds one or more adaptive PIC regions into a global MHD simulation domain such that the kinetic treatment is only applied in regions where the kinetic physics is prominent. We compare the simulation results among three cases: (1) MHD with adaptively embedded PIC regions, (2) MHD with statically (or fixed) embedded PIC regions, and (3) a full PIC simulation. The comparison yields good agreement when analyzing their reconnection rates and magnetic island separations as well as the ion pressure tensor elements and ion agyrotropy. In order to reach good agreement among the three cases, large adaptive PIC regions are needed within the MHD domain, which indicates that the magnetic island coalescence problem is highly kinetic in nature, where the coupling between the macro-scale MHD and micro-scale kinetic physics is important.