bluuebunny/crossref_metadata_2025 huggingface dataset:
Temporal Trend of Incidence and Prevalence of Eosinophilic Esophagitis in Asia: A Systematic Review and Meta-Analysis
Authors: Leung Ryan , Yeung Michelle Leong Ching , Li Yunhao , Muftah Mayssan , Chan Walter W. , Leung Wai K.
Published: September 2024

INTRODUCTION:

There are limited epidemiological studies on eosinophilic esophagitis (EoE) in Asia. We studied the temporal trend of EoE in Asia, the presenting symptoms, and association with atopic diseases.

METHODS:

Literature search on PubMed, Embase, MEDLINE, Scopus, and Web of Science was performed to retrieve studies published between 1980 and 2023 that reported the prevalence or incidence of EoE in Asia. We used a random-effects model to estimate the pooled incidence and prevalence. I
2 index and Cochran Q test were used to assess heterogeneity. Subgroup analyses were conducted for study types, different regions, years of examination, and age groups. The proportion of atopic diseases among patients with EoE was presented.

RESULTS:

Twenty-five studies from Asia were included. The pooled prevalence of EoE was 33.5 cases per 100,000 inhabitants in population-based studies and 11.0 cases per 1,000 patients/visitors in hospital-based studies. The incidence rate among children was 12.3 cases per 1,000 patients/visitors, whereas for adults, it was only 0.2 cases per 1,000 patients/visitors. Among population-based studies, there was an increase in prevalence from 19.8 per 100,000 individuals in 2005–2009 to 73.0 per 100,000 individuals in 2015–2019. A similar upward trend was observed in hospital-based studies conducted during the same period. Patients with EoE commonly presented with dysphagia (36.3%) and nausea and vomiting (34.6%). History of atopy was reported in 57.2% of patients with EoE in Asia.

DISCUSSION:

The prevalence and incidence of EoE in Asia have been rising over the past decades. Because of the limited number of Asian studies and variations in patient sources, caution should be exercised when interpreting these results.
Anti–Tumor Necrosis Factor Therapy and the Risk of Gestational Diabetes in Pregnant Women With Inflammatory Bowel Disease
Authors: Cho Yongtai , Choi Eun-Young , Choi Ahhyung , Han Jung Yeol , Ye Byong Duk , Kim Ju Hwan , Shin Ju-Young
Published: September 2024

INTRODUCTION:

Anti–tumor necrosis factor (anti-TNF) therapy may improve insulin sensitivity, and its impact during pregnancy remains unclear. We aimed to assess the risk of gestational diabetes mellitus (GDM) associated with anti-TNF treatment among pregnant women with inflammatory bowel disease (IBD).

METHODS:

This nationwide cohort study included patients with IBD in Korea from 2010 to 2021. Anti-TNF exposure was identified from the last menstrual period (LMP) to LMP + 140 days. The development of GDM was assessed from LMP + 141 days to delivery. We performed overlap weighting to balance the covariates and used a generalized linear mixed model to measure the risk ratio (RR) and 95% confidence intervals (CIs). The anti-TNF group was compared with the unexposed group, as well as with the immunosuppressant, 5-aminosalicylate, and untreated groups.

RESULTS:

A total of 3,695 pregnancies in women with IBD were identified, of which 338 (9.2%) were exposed to anti-TNFs. GDM was found in 7.1% of the pregnancies exposed to anti-TNFs as compared with 11.0% of those unexposed. The crude and weighted RRs for GDM risk were 0.64 (95% CI 0.43–0.96) and 0.68 (95% CI 0.55–0.84), respectively. The weighted RR when compared with the immunosuppressant, 5-aminosalicylate, and untreated groups was 0.70 (95% CI 0.41–1.18), 0.71 (95% CI 0.52–0.95), and 0.85 (95% CI 0.59–1.24), respectively.

DISCUSSION:

This nationwide cohort reported a decreased risk of GDM among patients who used anti-TNFs during early pregnancy compared with those unexposed. GDM risk may become a consideration in the decision-making process when choosing treatment options for pregnant women with a risk factor for GDM.
INVESTIGATION OF THE INFLUENCE OF SUPERPOSITION OF HIGH-FREQUENCY VIBRATIONS DURING THE CURING OF A METAL POLYMER ON ITS STRUCTURE
Authors: Chepchurov M. S. , Polshin A. A. , Lubimyi N. S. , Gerasimov M. S.
Published: September 2024

The article provides a description and results of an experimental study on the compaction of a metal-polymer material under the action of ultrasound, which is supposed to be used as a reinforcing component of various composite engineering systems. The scheme of the experiment and the used equipment and materials, measuring equipment are given. A brief mathematical analysis of the dynamics of a viscous fluid flow and the laws describing these processes is presented. A hypothesis has been formulated about an increase in the density of the metal polymer under the action of ultrasound, due to the introduction of additional vibration energy and its dissipation in the metal polymer, which should lead to a decrease in viscosity. The obtained metal-polymer samples were examined visually and using a durometer, the results are presented as images of samples sections and tabular data. Based on the data obtained, a histogram of the dependence of hardness and the number of gas pores on the time of ultrasonic exposure was constructed. In conclusion, an analysis of the obtained data is given, and conclusions are drawn about the effect of using ultrasound during pouring and curing of a viscous metal polymer. New directions for studying the effect of low-frequency vibrations on the viscosity of the metal-polymer composition are proposed in order to create technological equipment for the implementation of the technology for creating composite machine-building systems based on metal-polymer.
APPROBATION OF MULTI-ROW WORKING BODIES OF THE TRIPLE SCHEME OF PARALLEL STREAM FOR SHIP VANE PUMPS. DESIGN METHOD
Authors: Komolov M. B. , Lyapin V. Yu.
Published: September 2024

Presented the results of an extensive study of multi-row pumps with axial working bodies obtained at the production and testing base of JSC "NPO "Hydromash" for a deep modernization of the modern concept of ship blade pumps and further development of the theory of multi-row hydraulic machines. The paper considers a multi-row impeller of a triple parallel flow scheme, which was designed, manufactured and tested as part of an experimental pump sample. A design method for the developed impeller is presented, based on a combination of basic axial systems, studied in the framework of an extensive study of multi-row pumps through computational experiments in ANSYS CFD, and verified by bench tests. The results of laboratory tests of an experimental multi-row wheel of a triple scheme of parallel stream as part of a pump model are presented, confirming the efficiency of the design method used. The data obtained are planned to be used in the future to develop a modernized concept, form development directions and design methods for the latest ship-based vane pumps, in order to progress the level of their pressure-flow, weight, size, noise and other indicators. The absence of direct analogues of the considered multi-row impeller of the triple scheme is noted.
DESIGN AND STRUCTURAL ANALYSIS OF THE CHARACTERISTICS OF A FIRE UNMANNED AERIAL VEHICLE
Authors: Yakovenko T. A. , Burtsev A. V.
Published: September 2024

Wildfires are generally Class A fires that are very difficult to control due to difficult terrain and uncontrolled fire behavior. The purpose of this article is to propose the idea of using unmanned aerial vehicles such as a quadcopter to extinguish a forest fire. It is necessary to develop an unmanned aerial vehicle that can operate functionally at such elevated temperatures. These unmanned aerial vehicles, using a payload drop mechanism, can carry and drop fire extinguishing balls over the fire to extinguish it. Structural analysis is carried out to check the dynamic characteristics of these vehicles. Thermal insulation provided for sufficient thermal protection of electronics and circuits.
PLASTIC DEFORMATION WITH OPEN STITCHING. DETERMINATION OF PROCESS PARAMETERS
Authors: Vorontsov A. L.
Published: September 2024

Examples of determining the main parameters of the piercing process and comparing the calculated results with numerous experimental data are presented, confirming the high accuracy of the developed theory of piercing.
PLASTIC DEFORMATION WITH OPEN STITCHING. STITCHING ON BACKING RING AND HOLLOW STITCHING
Authors: Vorontsov A. L.
Published: September 2024

A theoretical analysis of the types of firmware on the backing ring and hollow stitching has been carried out. Formulas for practical calculations of these types of firmware are obtained.
ANALYSIS OF THE EFFECT OF RINGS STIFFNESS AND THEIR POSITION ALONG THE ROLLER AXIS ON THE UNEVEN LOAD DISTRIBUTION IN A NUT-FREE ROLLER DRIVE
Authors: Blinov D. S. , Tsvetkov D. I. , Morozov M. I.
Published: September 2024

The objects of study are promising nut-free roller drives (RD), which have high performance characteristics and were developed as part of the import substitution program. This paper is a continuation of a previously published article, which considers the peculiarity of loading the roller of a nut-free RD with axial forces that create an overturning moment. Its balancing leads to uneven distribution of the load between the running turns of the roller and uneven loading of the rings. The coefficient of uneven distribution of the load between the working turns of the roller Кн is introduced, the value of which depends on a number of design parameters of the details of the nut-free RD and the value of the working load. To reduce the coefficient Кн of uneven load distribution, in this paper and in a previously published article, the results of studies are presented that allow developing recommendations for choosing rational values of transmission design parameters. It has been established that the value of the coefficient Кн is influenced by the rigidity of the cross-section of the rings that keep the rollers from moving in the radial direction. Under load from the rollers, the rings stretch and bend, have a radial deflection. If the number of rollers in the transmission is seven or more, then the specified deflection of the ring from tension is ten or more times greater than the deflection from bending, that is, to reduce the coefficient Кн, it is advisable to increase the cross-sectional area of the ring. The position of the rings along the roller axis has a significant effect on the value of the coefficient of load unevenness Кн. With an increase in the distance between the center of gravity of the roller and rings, the value of the specified coefficient decreases. Taking into account the performed studies, a design technique for nut-free RD with rational parameters necessary to reduce the coefficient of uneven load distribution Кн between the working roller turns has been developed. In this technique, nut-free RDs with different roller designs are considered: rollers with necks at the ends and rollers with necks between their threaded sections.
KINEMATICS OF A MULTIMASS OSCILLATING SYSTEM WITH A NON-FIXED FREQUENCY OF FREE OSCILLATIONS
Authors: Popov I. P.
Published: September 2024

The work relates to the field of mechanical engineering, namely to oscillating mechanical systems. The relevance of the study is determined by the fact that vibrations of inertial masses occur everywhere. Target. Development of a mathematical model of a monoreactive multimass oscillator of non-fixed frequency. In the considered (idealized) case, the polygon, at the vertices of which oscillating weights are located, lies in the plane. In technical applications, weights should not interfere with each other’s movements; therefore, each weight should have its own plane, and all planes should be parallel (like a multipiston mechanism). The condition for the occurrence of free harmonic oscillations is the equality to zero of the total energy of the system, which in the case under consideration is exclusively kinetic, which determines the monoreactive nature of the oscillator. In the considered multidimensional flat monoreactive oscillator, free harmonic linear oscillations of weights can occur.
PUNCHING THIN DISCS. PART 2. INVESTIGATION OF THE INTRODUCTION OF THE CENTRAL PUNCH AT THE STAGE OF CONCAVITY FORMATION
Authors: Vorontsov A. L.
Published: September 2024

A mathematical description of the stage of formation of concavity during the initial introduction of the central punch in the course of plastic deformation of large thin disks or disks of hard-to-deform materials is obtained.
VIBRATION EXCITER WITH VARIABLE EXCITING POWER
Authors: Shishkin E. A.
Published: September 2024

The rollers of modern vibratory rollers are equipped with circular vibration exciters. Rapid change of roller vibration parameters depending on the changing characteristics of road-building material is the key to quality compaction of the latter. Therefore, the problem of increasing the speed of regulation of the exciting power of the vibrating mechanism of the roller is urgent. As a result of the analysis of existing technical solutions in the field of regulation of parameters of the vibrating exciter the design of the vibrating exciter with variable exciting power was developed. It is theoretically proved that the proposed design provides increase of speed and smoothness of regulation of the exciting power. This design allows to carry out regulation of parameters of the vibro-exciter without its stopping. The use of the developed vibrating exciter in vibratory rollers will allow to improve the quality of compaction of road-building materials by reducing the time for changing the magnitude of the exciting power.
METHOD OF ASSESSING THE THERMAL IMPACT ON ELEMENTS OF OIL REFINING EQUIPMENT
Authors: Trishkina I. A. , Fejtullaev A. J. , Storozheva E. I. , Platonov I. Yu. , Kurnin A. A.
Published: September 2024

Based on the study of the structure, phase composition and mechanical properties of the bimetal SA387GR11CL2+SA240TP321 (domestic analogue 12ХМ+08Х18Н10Т) and welded joints, a comprehensive method for assessing the thermal impact on various zones of oil refining industry apparatuses in determining the causes of damage and monitoring the current state is proposed. It is shown that it is advisable to determine the physical and mechanical properties of the metal not only on cuttings from the apparatus, but also on reference samples during comparison. To assess the thermal effect, it is proposed to use energy-dispersive analysis of metal in various zones, which makes it possible to conduct studies on small samples while reducing the labor intensity of work compared to classical carbide analysis. Simulation of overheating in laboratory conditions provides additional information about the thermal effects that could cause damage to the equipment.
THE INFLUENCE OF SURFACE EDDY CURRENT PROBE SIGNAL SMOOTHING ON ASSESSING STRESS-CORROSION CRACKS DEPTH IN MAIN GAS PIPELINE
Authors: Zagidulin R. V. , Bakiev A. T. , Lyapustin K. V.
Published: September 2024

The paper presents the results on the influence of signals smoothing of absolute and differential surface eddy current probes (ECP) above an individual crack and a group of stress-corrosion cracks on the accuracy of estimating the depths of stress-corrosion cracks during eddy current flaw detection of a main gas pipeline (MGP). Mathematical models demonstrate that the degree of signal smoothing of the surface ECP over an individual crack is higher than the degree of smoothing of the ECP signal over a group of stress-corrosion cracks in the MGP. Smoothing results in a decreased resolution of the surface ECP signal. The differential surface ECP is characterized by a higher resolution than the similar absolute surface ECP. The study demonstrates the reduction in amplitude difference between the actual signals of the absolute surface ECP over an individual crack and a group of stress-corrosion cracks, compared to the smoothed signal of the surface ECP. In the estimates of depths in the group of stress-corrosion cracks in MGP, obtained from the amplitude of the actual signal of the absolute surface ECP, where smoothing of the ECP signal is excluded, a significant reduction in the relative error is observed.
MULTILAYER MARKOV NETWORKS WITH ABNORMAL INFERENCE
Authors: Konovalov V. A.
Published: September 2024

The study is devoted to multilayer Markov networks are not direct output, introduced into scientific circulation in the theory of Markov algorithms. These networks are synthesized from the N-scheme of the Markov algorithm, developed to replace his wellknown γ-scheme. The provisions of the theory of Markov algorithms are developing in the direction of joint processing of words and morphisms. In the schemes of the Markov algorithm γ and N, theoretical differences are considered, which determine the differences in multilayer networks feed-forward with normal Markov output and are not direct output. The theory of Markov algorithms is adopted in conjunction with the theory of categories, which is used to specify words and their compositions, as well as the structure of a Markov network. A definition and a categorical formula for the introduced concept of zero-category are given. The mechanism of synthesis from zero-categories of zero-Markov networks is shown. In the theory of algorithms, the concept of a self-scaling subnet is introduced. For self-priming subnets, theoretical and practical differences from Markov networks are shown. To synthesize a Markov network by a self-scaling subnet, one must be trained in the rules of inference. Self-plating of such a subnet is carried out by the first word from the input data sample coming to its input. Interactions are studied in zero-categories and categories, examples of Markov networks for various compositions of morphisms are given. Possible approaches to weighting morphisms are considered from a theoretical point of view. The mechanism for choosing a layer of a Markov network for weighting morphisms is analyzed. Methods for the formation of compositions of possible inference rules in self-priming subnets are estimated theoretically. It is concluded that the moment of saturation of the Markov network with occurrences, at which it begins to have a stable structure, is of scientific and practical interest. It is expedient to study the self-scaling subnetwork and the nature of its influence on the Markov network precisely at the moment of stabilization of the structure of the latter.
DNA barcoding: An effective molecular tool for species identification, molecular authentication and phylogeny studies in plant science research
Authors: Nair V Divya , Aseema Pareeda , Saini Khem Chand
Published: September 2024

DNA barcoding is a technique for identifying specimens using brief, standardised DNA segments. In a variety of fields, including phylogeny, ecology, population genetics and biodiversity, DNA barcoding has become a successful method for precisely distinguishing species. The method is straightforward, efficient in both time and money and accurate. The key to successful DNA barcoding is choosing the right DNA marker. Since the idea of a quick approach for species identification was first put up in 2003, the scientific community has been keen to realise the potential of DNA barcodes. Cytochrome c oxidase, I (COI) region of the mitochondrial genome is mostly recognised as a standard barcoding region in animals. Later, rbcL + matK pairing, with a 70 % discriminating efficiency, was suggested by the Plant Working Group (PWG) of the Consortium for the Barcoding of Life (CBOL) as the standard barcode in plants. Three conditions must be met for a gene region to be an efficient DNA barcode: it must have sufficient species-level genetic divergence and variability, it must have conserved flanking regions for the widest taxonomic use and for generating universal PCR primers and it should be long enough to facilitate current capability for sequencing and extracting DNA. Different combinations of plastid coding, non-coding and nuclear markers are utilised as supplemental markers to boost the degree of plant species differentiation. The reliability of different barcodes in distinguishing species varies among different groups of plants. As DNA barcoding approaches its twentieth anniversary, technologies are still being developed that make use of this resource, which is constantly expanding in a variety of biological disciplines. Plant DNA barcoding, which became a scientific advance during the last ten years, is frequently employed as a taxonomical aid in identifying species. It is a way of choosing genetic loci that identifies and distinguishes an organism's membership from specific species, variations or even intervarieties. It varies from molecular phylogeny, which identifies an unknown sample from an existing classification rather than identifying patterns of association.
Relational Processes and Social Projections in Facebook Selfie-Quotation Juxtaposition: An Exploratory Study
Authors: Xiong Yuan , Munalim Leonardo O.
Published: September 2024

The juxtaposition between selfie and quotation is an emerging user-generated Facebook content. This exploratory study is the first to show how Facebook users self-represent themselves through Relational Processes, based on the intertextuality between these verbal and visual modes. Relational Processes refer to the process of characterizing, identifying or describing a person or entity. In this study, 132 Facebook quotations were categorized into three types of Relational Processes based on the users’ selfies. The clauses were restated into I-expressions to center the users’ multimodal experiential and egocentric positioning. The findings revealed that Attributive Relational Processes, such as “I am happy,” predominated in the self-quotation juxtaposition. These relational processes are then discussed based on the potential social projections within the Philippine cultural circuit, namely: the Filipino culture of “inggit” (envy); crab mentality; being social climbers; and the neoliberal and neocolonial status of the Philippines as channeled through the Western-driven quotations. Overall, we argue that the juxtaposition of these two semiotic modes can lead to the creation of a new persona of the Facebook users, enhancing their digital self-remodeling and self-representation.
Removal of methylene blue (MB) and vat dyes from wastewater using nanostructured PANI, PPy, and PTh: a comparative study
Authors: Ahmad Md. Faruak , Rokonujjaman Md. , Hossain Nayem , Das Satu , Rahman Khan Mohammad Mizanur , Jeong Jae-Ho
Published: September 2024

The removal capabilities of organic pollutants methylene blue (MB) and textile dyes, especially the vat dyes from wastewater were reported using polyaniline (PANI), polypyrrole (PPy) and polythiophene (PTh) under direct sunlight irradiation. The comparative removal competence of these polymers is reported in the present work. Among the three polymers, PANI demonstrated nanofiber morphology, PPy showed a spherical-shaped structure, and the agglomerated and irregular morphology for the PTh was appreciated, and investigated by field-emission scanning electron microscopy (FESEM). However, the diameter of the particles remains 20–200 nm for these three polymers. The experimental findings for the photocatalytic performances of all three polymers demonstrated that PANI showed 97 % removal of MB in 660 min whereas, PPy and PTh showed 96  and 94 % removal, respectively. The results for removing vat dyes are 41 % for PANI, 44 % for PPy, and 45 % for PTh. Thus, PANI, PPy, and PTh are able to remove both MB and vat dyes, however the % of vat dyes removal is lower compared to MB. These outcomes may provide a new perception of conducting polymers as photocatalysts for organic dye removal in water purifications.
Multiple translation and the translator’s visibility
Authors: Agnetta Marco
Published: September 2024

This essay proposes to show how translation plurality, i. e. the existence of several translations of the same original, ensures the translation’s and the translator’s visibility. The starting point is Venuti’s concepts of ‘fluent translation’ or the ‘transparency’ of translation, coined for English-language translation practice between 1700 and today, and his – centuries old – distinction between domestication and foreignization. On the basis of Melchiorre Cesarotti’s project of a double Italian translation of the Iliad and, in particular, his theoretical reflections on translation, it is argued that translation plurality is one way to overcome the notion of only one fluent and transparent leading translation that is criticized by Venuti. The essay concludes with some remarks on building awareness of multiple translations, and on elaborating a general discourse of translation plurality.
Wear behaviour of titanium diboride and zirconium carbide reinforced LM13 hybrid composite for automotive applications
Authors: Siddharthan Balakrishnan , Kumaravel Arumugam
Published: September 2024

This study investigates the wear behaviour of a hybrid composite material reinforced with titanium diboride and zirconium carbide in LM13. The ASTM standard is followed for conducting wear tests, utilizing a pin-on-disc setup to assess the wear rate. An empirical relationship is established to predict the wear rate using statistical tool analysis of variance, and the model’s adequacy is checked. Low wear is observed at a sliding distance of 110 mm, sliding speed of 2.5 m s−1, and sliding load of 12.5 N. The observed low wear is attributed to the optimal level of reinforcement provided by titanium diboride and zirconium carbide. From the analysis of variance, sliding speed is identified as the major contributing factor to wear rate, followed by sliding distance and load. The reinforcement materials enhance the wear resistance of the hybrid composite and their effectiveness is particularly evident under the specified sliding conditions.
Ca2Co5.66Zn11.34, Ca2Co4.62Zn12.38 and Ca2Co2.36Zn14.64 – First intermetallic compounds in the Ca–Co–Zn system
Authors: Block Theresa , Kösters Jutta , Reimann Maximilian Kai , Pröbsting Wilma , Chamard Valentin Antoine , Pöttgen Rainer
Published: September 2024

Single crystals of Ca2Co5.66Zn11.34, Ca2Co4.62Zn12.38 and Ca2Co2.36Zn14.64 were obtained from reactions of the elements in sealed tantalum ampoules. The crystal structures were refined from single-crystal X-ray diffractometer data: Th2Zn17 type, R

3
‾

$\overline{3}$

m, a = 879.93(7), c = 1282.81(11) pm, wR = 0.0394, 432 F
2 values, 25 variables for Ca2Co5.66Zn11.34, a = 886.0(4), c = 1293.1(6) pm, wR = 492 F
2 values, 25 variables for Ca2Co4.62Zn12.38 and a = 894.62(16), c = 1307.2(3) pm, wR = 0.0463, 460 F
2 values, 24 variables for Ca2Co2.36Zn14.64. The crystal chemistry of these phases is driven by different Co/Zn mixed occupied sites. The structures are explained as a rod packing of infinite strands that are built up from pairs of interpenetrating Ca@(Co/Zn)19 and Zn1@(Co/Zn)13Ca polyhedra.
Oued Beht, Morocco: a complex early farming society in north-west Africa and its implications for western Mediterranean interaction during later prehistory
Authors: Broodbank Cyprian , Lucarini Giulio , Bokbot Youssef , Benattia Hamza , Bigoulimen Aïcha , Farr Lucy , Garcia-Molsosa Arnau , Hachami Hassan , Laoutari Rafael , Lombardi Lorena , Marsilio Adelaide , Martin Louise , Morales Jacob , Radi Moad , Michele Rega Francesco , Wilkinson Toby
Published: September 2024

The Maghreb (north-west Africa) played an important role during the Palaeolithic and later in connecting the western Mediterranean from the Phoenician to Islamic periods. Yet, knowledge of its later prehistory is limited, particularly between c. 4000 and 1000 BC. Here, the authors present the first results of investigations at Oued Beht, Morocco, revealing a hitherto unknown farming society dated to c. 3400–2900 BC. This is currently the earliest and largest agricultural complex in Africa beyond the Nile corridor. Pottery and lithics, together with numerous pits, point to a community that brings the Maghreb into dialogue with contemporaneous wider western Mediterranean developments.
Fatigue Life and Stress Analysis of a Single Cylinder Four Stroke Crankshaft
Authors: Jayanthan Gunarajah , Abu Bakar S A , Mazali I I
Published: September 2024

This paper focuses on the optimization of a crankshaft using ANSYS software in terms of weight and strength. The initial designs of the crankshaft, piston, and connecting rod were created using SolidWorks. The force generated by the gas during the combustion process was calculated to be 12017 N. Next, the SolidWorks assembled system was imported into ADAMS View software for simulation, which revealed a time-variant force of the crankpin of 14049 N. The calculated value was verified with results obtained from analytical calculations, showing a deviation of 0.23%. Finite element analysis was done for the crankshaft using ANSYS transient structural after applying loadings and boundary conditions. The optimization process aimed to minimize the crankshaft's weight while maintaining its strength and durability. The results of the ANSYS simulations showed a weight reduction of 2.5% from the original 2.983 kg to 2.907 kg, while maintaining the required strength and durability. The optimized crankshaft was compared to its original design in terms of fatigue life, weights, and stresses. The maximum von Mises stress was reduced by 16%, shear stress by 3.5%, and deformation by 3.5%, which were validated through analytical calculations. The crankshaft analysis resulted in a significant increase in fatigue life, calculated to be infinite under the given conditions. To conclude, the objective to optimize the crankshaft for performance and efficiency was achieved, demonstrating a 2.5% weight reduction and substantial improvements in fatigue life and stress distribution, proving the effectiveness of ANSYS software for the design optimization process.
Zimowa Wielka Sobota – tłumaczenie i analiza kanonu wigilii Narodzenia Chrystusa
Authors:   Prawosławne Seminarium Duchowne, Warszawa, Polska, Karczewski Pantelejmon
Published: September 2024

The Feast of the Nativity of Christ in its liturgical celebrations resembles the most important of all feasts - the Resurrection of Christ. One similarity is the extended pre-Christmas period, the last days of which (20-24 December) resemble Holy Week. The apogee of spiritual preparation is the vigil, at which a canon is sung that paraphrases the canon of the Holy Saturday Matins. This article is a translation of the canon with commentary.
La formación docente: una oportunidad para la transformación desde la investigación científica
Authors: Caicedo Guevara Beatriz Lorena , Fernández Guayana Tany Giselle
Published: September 2024

The essay aims to analyze the contributions of scientific research in teacher training and its impact on the transformation of education. At the University and in training centers, the curriculum that guides teachers has the task of not only updating the contents under cutting-edge demands, but it also has the fundamental task of adapting to the contextual realities of their work scenarios. In higher education, scientific research is the resource that guarantees the transformation of education professionals, their own students, and their communities. Examples of this are the Political Constitution of 1991, Law 115 of 1994 and Decree 1330 of 2019 (Colombia), which explain the importance and management of providing teachers with professional or continuous training in accordance with scientific processes. From this perspective, new contributions are made to the topic, taking teacher training to the construction of democratic scenarios, to the transformation of territories, systems, educational practices, curricular action, experience, and to society from a critical stance that transcends the discussion of knowledge.
CHARACTERISTICS OF AEROSOL DISTRIBUTION AND COMPOSITION IN THE SOUTH-EAST OF CRIMEA IN SPRING 2020
Authors: АРТАМОНОВА М.С. , ЧХЕТИАНИ О.Г. , ИОРДАНСКИЙ М.А. , МАКСИМЕНКОВ Л.О. , ЛАПЧЕНКО В.А.
Published: September 2024

Представлены результаты исследования аэрозоля в приземном слое атмосферы в юго-восточной части Крымского полуострова на «Карадагской научной станции им. Т.И. Вяземского - природный заповедник РАН» филиала ФИЦ «Института биологии южных морей им. А.О. Ковалевского». Работы проводились с 21 марта по 17 июня 2020 г. Среднесуточная массовая концентрация аэрозоля за весь период измерений варьировалась от 3 до 35 мкг/м3 при среднем значении 13 мкг/м3. Исключение составили высокие концентрации частиц во время эпизода 25-27.03.2020 г. (48, 195 и 49 мкг/м3), когда был зарегистрирован мощный восточный перенос от источников в Казахстане (пыльная буря на Арале) через Калмыкию в Крым. С учетом этого эпизода среднее значение массовой концентрации аэрозоля - 16 мкг/м3. Из 89 дней наблюдений выделены дни с различными направлениями прихода воздушных масс, а также дни с наиболее высокими среднесуточными значениями массовой концентрации аэрозоля. Для этой выборки (31 проба) определено содержание 64 химических элементов в пробах. Проведена оценка аккумуляции химических элементов в почве и аэрозольных частицах, рассчитаны кларки концентрации химических элементов в почве, коэффициенты аэрозольной концентрации и обогащения химических элементов в аэрозолях. Рассмотрены вопросы зависимости массовой концентрации, дисперсного и элементного составов приземного аэрозоля от дальней аэрозольной миграции.

The results of experimental studies of aerosol in the surface air layer in the southeastern part of the Crimean Peninsula at the background environmental monitoring station of the Vyazemsky Karadag scientific station from March 21 to June 17, 2020, are presented. The daily average mass concentration over aerosol for the entire measurement period ranged from 3 to 35 mg/m3, with an average value of 13 mg/m3. The exception was high concentrations of particles during the episode of 25-27.03.2020 (48, 195, and 49 mg/m3), when a extreme eastward transfer from sources in Kazakhstan (a dust storm on the Aral Sea) through Kalmykia to the Crimea took place. Taking into account this episode, the daily average aerosol mass concentration was 16 mg/m3. Days with different directions of air masses arrival, as well as days with the highest daily mean values of aerosol mass concentration were identified out of 89 observation days. For this sample (31 samples), the content of 64 chemical elements was determined in the samples. Accumulation of chemical elements in soil and in aerosol particles was estimated; clarks of chemical element concentrations in soil, aerosol concentration coefficients, and enrichment coefficients of chemical elements in aerosols were calculated. The dependences of the mass concentration and disperse and elemental composition of the surface aerosol on further aerosol migration are considered.
ISOTOPIC COMPOSITION OF TROPOSPHERIC WATER VAPOR IN THE VICINITY OF ST. PETERSBURG
Authors: ВИРОЛАЙНЕН Я.А. , ШПАК К.А.
Published: September 2024

Водяной пар играет ключевую роль в целом ряде климатообразующих процессов на различных высотах земной атмосферы. Мониторинг изотопологов водяного пара позволяет получать информацию об атмосферном гидрологическом цикле и исследовать процессы, связанные с испарением и конденсацией, определяющие влажность в тропосфере и водный обмен между тропосферой и стратосферой. Впервые проанализированы временные вариации общего содержания изотопологов водяного пара (H2O и δD) за 2009-2020 гг. на основе результатов наземных измерений солнечного ИК-излучения Фурье-спектрометром Bruker IFS 125HR в Петергофе. Максимальные значения H2O и δD приходятся на летний период, минимальные - на зимний, при этом наибольшая изменчивость H2O наблюдается в летние, а δD в зимние месяцы, что обусловлено климатическими особенностями Санкт-Петербурга, т.е. происхождением и историей приходящих воздушных масс. Банк данных изотопического состава водяного пара в окрестностях Санкт-Петербурга может быть использован в моделях общей циркуляции атмосферы с целью повышения точности прогнозирования погоды и долгосрочных изменений регионального климата.

Water vapor plays a key role in different climate-forming processes at various altitudes in the Earth's atmosphere. Water vapor isotopologues monitoring provides information on the atmospheric hydrological cycle. It helps to study the processes associated with evaporation and condensation that control the humidity in the troposphere and water exchange between the troposphere and stratosphere. For the first time, temporal variability of water vapor isotopologues (H2O and δD) in Peterhof in 2009–2020 were analyzed using ground-based measurements of solar IR radiation by the Bruker IFS 125HR Fourier spectrometer. For both H2O and δD, the maxima occur in summer, the minima – in winter, while the largest variability of H2O is observed in summer, and δD, in winter months due to the climatic features of St. Petersburg, i.e., the origin and history of incoming air masses. The database of water vapor isotopic composition in the vicinity of St. Petersburg can be used in models of the general circulation of the atmosphere to improve the accuracy of weather forecasting and longterm changes in the regional climate.
CALCULATION OF THE COORDINATES OF A LIDAR SENSING OBJECT AND ITS MAPPING
Authors: ЧЖАН Ш. , КЛИМКИН А.В. , КОХАНЕНКО Г.П. , КУРАЕВА Т.Е. , ОСИПОВ К.Ю.
Published: September 2024

Лидар как важное средство исследования атмосферного аэрозоля широко используется при изучении распространения атмосферных аэрозольных загрязнений. При проведении экологического мониторинга и тем более при использовании для этой цели мобильного лидара важно иметь информацию не только о наличие загрязнений, но и о динамике их распространения, о пространственных координатах их источника. Предложен метод расчета координат объекта исследования исходя из координат лидара, направления зондирования и расстояния до объекта. Представлены программный модуль расчета координат и пример его применения при разработке вспомогательных лидарных систем.

Lidar is an important tool for studying atmospheric aerosol; it is widely used in studying the propagation of aerosol pollution in the atmosphere. During environmental monitoring, especially with a mobile lidar, it is important not only to detect a pollutant, but also to determine the spatial coordinates of its source and the propagation dynamics. In the work, we suggest a technique for calculating the coordinates of an object under study from the lidar coordinates, sensing direction, and the distance between the lidar and the object. The software implementation of the technique and an example of its application in the design of an auxiliary lidar system are described.
Creating Collaborative Cultures: The Effect of Rewards and Social Units on Knowledge Sharing in Culturally Diverse Academic Settings
Authors:   Department of Library and Information Science, Punjabi University, Patiala, Punjab – India, Singh Jaswinder Pal , Kaur Baljinder ,   Department of Library and Information Science, Punjabi University, Patiala, Punjab – India
Published: September 2024

Background: The present study explores knowledge sharing in multicultural academic settings, focusing on gender dynamics. The study emphasizes the impact of rewards, social units, and cultural diversity on knowledge sharing behaviors. A deeper qualitative exploration could further highlight specific dynamics not captured in quantitative analysis. Purpose: Taking higher education institutions (HEIs) in India as the research context, this paper aims to examine the knowledge sharing dynamics influenced by rewards, social units, and cultural diversity, focusing on gender-specific differences among faculty members. Additionally, the study provides recommendations for HEIs to foster inclusive knowledge sharing practices. Method: This cross-sectional, quantitative study employed a convenience sampling method. Data were collected via a structured questionnaire. In this survey, 680 questionnaires were distributed to an entire university faculty. All respondents are affiliated with Chitkara University and Punjabi University, India. The survey measured demographic details, familiarity with knowledge sharing, and variables such as knowledge sharing, rewards, social units, and cultural diversity. Result: The study reveals that gender-specific differences significantly impact knowledge sharing behaviors. Monetary rewards are more effective for male faculty members, while non-monetary rewards and institutional support for cultural diversity are more effective for female faculty members. Strong social units positively influence knowledge sharing for both genders, but more so for males. The combined effect of institutional support for cultural diversity and social units on knowledge sharing is perceived differently by male and female faculty members. Conclusion: Gender dynamics play a crucial role in shaping knowledge-sharing behaviors within multicultural academic settings. Addressing these gender-specific influences through tailored rewards and inclusive social networks can enhance knowledge sharing. The study underscores the need for higher education institutions to develop gender-sensitive policies and cultivate inclusive environments to promote effective knowledge sharing among faculty members.
PRELIMINARY MODEL OF POTENTIAL AREAS FOR RESTORATION FOR THE INTER-ANDEAN VALLEY OF CAUCA RIVER (COLOMBIA, SOUTH AMERICA) BASED ON HABITAT SUITABILITY MODELS
Authors: Alvarado-Solano Diana Patricia , Otero Joel Tupac , Šarapatka Bořivoj
Published: September 2024

Tropical dry forests (TDF) are highly susceptible to land degradation. The inter-Andean Valley of the Cauca River (IVCR) has the most fragmented Colombian dry forests, and their restoration is essential. Here, potential areas for restoration were identified using a habitat suitability modeling (HSM) approach. TDF vascular plants and bioclimatic predictors were used. Species were selected based on threatened status, endemism, and priority level for conservation. Two sets of predictors were chosen using Variance Inflation Factor (VIF) and Principal Component Analysis (PCA). Then, with a maximum entropy algorithm, PCA and VIF models were projected for the selected species. These models were evaluated via true skill statistics (TSS) and area under the curve (AUC) statistical metrics. Models with good performance (TSS, AUC, standard deviation, variance) were ensembled, and a preliminary model where areas with suitable bioclimatic conditions for the selected species were generated. Results show that nearly 45 % of the IVCR has suitable conditions for the selected species. Although potential conflicts may arise in areas under permanent or semipermanent crops which represent more than 80 % of the IVCR, cropland mosaics, and natural and seminatural land covers might provide alternative solutions to reduce the land-use conflict. The potential areas for restoration identified in this study may provide a comprehensive framework for environmental impact and regional risk assessments related to the current land use and land cover change dynamics. Also, they may provide relevant information for designing landscape restoration programs as an adaptive strategy toward climate change.
COLISIÓN DE AVES CON VENTANAS DE EDIFICIOS EN CIUDAD VICTORIA, TAMAULIPAS, MÉXICO
Authors: Gómez-Moreno Vannia del Carmen , González-Gaona Othón Javier , Niño-Maldonado Santiago
Published: September 2024

Las colisiones con ventanas causan millones de muertes de aves al año, estos eventos se deben a que estas son incapaces de reconocer el vidrio como una barrera física. En algunos estudios se menciona que existen familias y comportamientos que hacen que algunas especies sean más susceptibles a chocar. Los objetivos del presente estudio fueron determinar la composición de especies que colisionan contra las ventanas de los edificios, conocer la cristalería que genera mayor grado de mortalidad y analizar las características de las especies como hábitos migratorios, alimenticios y estados de conservación de las especies afectadas. El estudio se llevó a cabo en Ciudad Victoria, Tamaulipas, México. Donde fueron seleccionadas tres áreas con edificios que presentaran la mayor cantidad de cristalería y se estuvieron monitoreando tres veces de enero a diciembre de 2019. Se obtuvieron 270 cadáveres pertenecientes a 44 especies, de estas Zenaida asiática (Linnaeus,1758) fue la de mayor número de accidentes, la cristalería reflectante generó una elevada tasa de mortalidad y cada estación del año es distinta en cuanto a la composición de aves afectadas. Estas estructuras están generando un declive en especies con estatus de conservación (Passerina ciris Linnaeus, 1758) y endemismos de México (Corvus imparatus Peters, JL 1929 y Periporphyrus celaeno Deppe, W 1830). Los hallazgos evidencian un problema para la conservación de especies y, por esta razón, se debería continuar investigando los edificios para conocer el impacto real que se está ocasionando en las poblaciones de aves.
POTENTIAL EFFECT OF HIVE COLOR ON HONEY BEE COLONY PERFORMANCE
Authors: Erkan Cengiz , Öztürk Yesribe
Published: September 2024

In this study, the objective was to determine the potential effect of hive color on honey bee colony performance. Among the three hive groups, the hives, and their covers in the first group were painted in white; the hives and covers in the second group were painted in blue, and finally, the hives in the third group were painted in blue while their covers were painted in white. Data recorders were placed inside all hives, and temperatures were recorded every 59 minutes between June 27 and July 26 in the hives kept in the open field. In the study, examining the effect of three combinations of two different colors on the hive’s internal temperature, average temperature values were calculated for the first, second, and third groups as 22.36±7.23 °C, 24.26±8.27 °C, and 24.93±8.91 °C, respectively, for the entire day. The results of the one-way variance analysis showed that the difference among groups was statistically significant (p<0.001). Considering that ambient temperature might be more effective in-hive temperature at certain times of the day, the data recorded between 10:00 a.m. and 5:00 p.m. were discussed separately, and the analyses in question were repeated. As a result of the research, it was observed that the white color group had a lower average temperature for both the entire day and the hot hours of the day. Therefore, it was concluded that the white color of the hives significantly contributes to the honey bee colony’s performance.
A New Chinese Manichaean Painting: Auspicious Signs Heralding Mānī’s Birth
Authors: Zhang Peng , Kósa Gábor
Published: September 2024

This paper introduces and analyzes a new Chinese Manichaean painting entitled ‘Auspicious Signs Heralding Mānī’s Birth’. Zhang Peng 张鹏, a doctoral candidate at the Central Academy of Fine Arts (Zhongyang Meishu Xueyuan 中央美术学院), was the first to notice the Manichaean affiliation of this painting, which was auctioned by the Beijing Poly International Auction Co., Ltd (Beijing Baoli Guoji Paimai Youxian Gongsi 北京保利國際拍賣有限公司) in 2021. This study employs the methods of iconographic comparison and analysis of textual parallels to argue that the recently identified hagiographic painting shares striking stylistic similarities with at least three other previously known Manichaean paintings, and that it can be directly related to one of them.