bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of replacing the second gonadotropin releasing hormone of Ovsynch and Co-synch protocols with human chorionic gonadotropin on the reproductive performance of primiparous lactating cows during the cool months of the year
Authors: Fattahi M , Goli M.
Published: January 2025

The study objective was to evaluate the effect of replacing the second gonadotropin releasing hormone (GnRH2) of the Ovsynch and Co-Synch protocols with human chorionic gonadotropin (hCG) on ovulation, conception, pregnancy, and embryo loss rates in primiparous lactating dairy cows. Forty-nine primiparous Holstein cows 53 to 65 days in milk were allocated to the following groups: (1) OVS (Ovsynch; n=12): GnRH, 7 days, PGF2α, 56 hours, GnRH, 16-18 hours, timed artificial insemination (TAI); (2) COS (Co-Synch; n = 12): GnRH, 7 days, PGF2α, 72 hours, GnRH + TAI; (3) OVS-hCG (Ovsynch + hCG; n = 12): as OVS except that GnRH2 was replaced with 1500 IU hCG; (4) COS-hCG (Co-Synch + hCG; n = 13): as COS except that GnRH2 was replaced with 1500 IU hCG. Ovaries of all animals were scanned by transrectal ultrasonography to determine the incidence of ovulation on days 9, 10 and 11 at 24-hour intervals after the initiation of the treatments (day 0). Ovulation was defined as the disappearance from one scanning session to the next of a previously identified follicle ≥ 8 mm in diameter. Pregnancy diagnosis was performed by transrectal ultrasonography on days 30 ± 1 and 42 ± 1 post TAI to determine conception and pregnancy status, respectively. The results showed that the animals in OVS tended to have higher ovulation and conception rates (P=0.08). In addition, pregnancy rate was higher and embryo loss rate was lower for OVS than the other groups, but the differences were not significant (P>0.05). It was concluded that replacing GnRH2 with hCG in the Ovsynch and Co-Synch programmes has no beneficial effect on the reproductive performance of primiparous Holstein cows. However, conducting the experiment at a larger scale may provide more precise results.
The Social Capital of Religious Harmony: A Study of Desa Sadar Kerukunan in Ilir Kota, Sanggau Regency, West Kalimantan
Authors: Fitriyanto Andry , Kurniawan Syamsul , Fatimah Lisyati
Published: January 2025

This article investigates the relationships between two congregations, Muslims and Confucians, of two places of worship, that is, Al-Ikhlas Mosque and Tri Dharma Temple adjacent to each other in Desa Sadar Kerukunan, Ilir Kota, Sanggau Regency, West Kalimantan. These two places of worship together arguably form the icon of tolerance between religious communities. To ensure that a society characterized by religious and ethnic diversity is harmonious, social capital is necessary to bolster the cohesiveness of relationships between individuals and groups. This study is field research with a qualitative approach and a descriptive method. Employing Robert D. Putnam’s theory of social capital encompassing trust, norms, and networks, this study found that firstly, the deep trust of each religious community is well fostered, which is reflected in the practice of inter-religious communities helping each other. Secondly, there are social networks established and preserved by the elite of the two places of worship. Thirdly, social norms encourage all activities related to ethnicity and religious identity to be communicated clearly to all parties. Fourthly, harmony between religious communities around these two places of worship is driven by the same motive to preserve a common interest, that is, the economic aspect.
Hadhrami Networks and Colonial Legacies in Marriage Discourses of the Indies
Authors: Taufik Egi Tanadi , Bisri Hasan
Published: January 2025

This study draws the relationship between the European colonial legal administration and the discourse of Islamic law in Indonesia by focusing on specific historical contexts from the Dutch East Indies to modern-day Indonesia. Particularly, it tries to understand how colonial behavior of anti-miscegenation relates to the modern customary law of endogamy among Indonesian Bā ‘Alawi under kafā‘a doctrine. This study applies qualitative methods to highlight the legal history of Muslim endogamy focused on the Hadhrami-origin ‘Alawiyyīn in Indonesia. The initial section discusses the institution of marriage law in Islamic classical sources and the narrative of particular ethnical-national supremacy. It argues that the colonial regime passed the legislation of anti-miscegenation laws to support endogamic marriage, intensify inter-racial tensions among indigenous people, and dehumanize mixed-blooded children. That legislative enactment is based on certain colonial legal mechanisms passed to maintain order between different ethnicities and races which were then readopted among Hadhrami Muslims to popularize kafā‘a doctrine. Hence the constructed idea of “pernikahan sekufu” or kufū’-based marriage was later associated with the intra-ethnical marriage, especially among the sharīf/sharīfa which withheld the claim of their superior lineage as descendants of the Prophet.
The Ontological Meanings of Dhunnya: Principles of Socio-Religious Harmony in the Lives of Madurese Migrants in Malaysia
Authors: Hidayat Ainur Rahman , Buna’i Buna’i , Zulaekah Zulaekah , Harisah Harisah
Published: January 2025

This study explores the ontology of dhunnya in Madurese culture, encompassing its interpretations as treasure, the mortal world, and the worldly realm within the framework of intentionality-equilibrium. The concept of dhunnya is inherently directed towards achieving socio-religious balance, which serves as a fundamental guiding principle for the Madurese, both within their homeland and in diasporic contexts. This concept underpins the mindset, attitudes, and behaviors of the Madurese people, who place significant emphasis on spiritual and religious dimensions. This study adopts a hermeneutic-philosophical approach, concluding that the harmony and disharmony of dhunnya are reflected in the balance between rights to property, altruism, and transient worldly adornments. Moreover, this balance is oriented towards fostering ethnic solidarity and strengthening the kiai-santri relationship. The eclectic model of dhunnya ontology is reconstructed through an analysis of socio-religious practices, including koloman, haul, tahlilan, molodhen, funeral rites, and studio-based education. These practices are particularly relevant to the integration of spiritual-religious and spiritual-economic aspects among Madurese migrants in Malaysia. This finding underscores the critical role of socio-religious principles in maintaining the harmony of Madurese life in diaspora contexts.
Navigating Religious Moderation in Halal Tourism: Insights from Traditional Leaders in the Lake Toba Caldera, North Sumatra
Authors: Daulay Maraimbang , Sukardi Imam , Nasution Ismail Fahmi Arrauf , Miswari Miswari
Published: January 2025

This study uses the concept of religious moderation to analyze the perceptions of traditional community leaders in Lake Toba Caldera, North Sumatra on halal tourism. Toba, Samosir, Humbang Hasundutan, and Dairi are Christian-majority regions designated as priority tourist destinations by the government, with a focus on halal tourism. A qualitative method was used in this study, with interviews with traditional leaders as the primary source, supplemented by interviews with tourists and business actors, as well as observations and literature reviews. The findings, analyzed through the concept of religious moderation, revealed three perspectives on halal tourism: the first group saw it as a form of Islamization, the second had only a vague idea, and the third rejected the term itself due to its discriminatory connotations. Overall, the traditional leaders accepted halal tourism as a service for Muslim tourists but were not comfortable with the term ‘halal tourism’. This study highlights the importance of religious moderation values, with tolerance and national commitment emerging as the key indicators of religious moderation in the region.
Securing the Distributed Workforce: A Framework for Enterprise Cybersecurity in the Post-COVID Era
Authors:   Independent Researcher, Leading Financial Firm, Texas, USA, Lakshmikanthan Govindarajan , Sreekandan Sreejith ,   Independent Researcher, Leading Financial Firm, Texas, USA
Published: January 2025

COVID-19 is the new standard for forced changes in the workforce, forcing the adoption of remote and
hybrid work environments globally. It was in the period of this rapid adoption of distributed work environments that
new opportunities for flexibility and productivity were opened up, but fundamental weaknesses of conventional notions
of cybersecurity were unveiled. As employees connect to company networks from a plethora of different places and
different types of devices, situations were complex at the corporate level to ensure that security measures remained
adequately stringent. New threats came to the fore, such as endpoint devices that have added more risks since they were
unsecured home networks and the use of personal devices (BYOD). All these changes raised the concern of a new
security model for the enterprise whereby new, fresh methods of dealing with the issue emphasize strategies which
accommodate the change, and we affirm the need to put in place security architecture that will help protect the valuable
enterprise assets. This paper looks at the new challenges of defending the widely dispersed employee base and offers an
integrated solution for protecting the modern enterprise. To address risks inherent in the current working environments,
the framework seeks to address concerns of identity-centric security and zero-trust and apply emerging technologies in
threat intelligence. Using knowledge acquired by current cyber assaults and actual programs, the research provides
numerous substantial approaches to countering current and potential cyber threats. The research also identifies the main
recommendations for enterprises operating in this environment, including the need for active management of risks and
constant adaptation to threats.
Tracking Perception of the Discovery Learning Model and Motivation to Learn Biology: Impact on Students’ Achievement
Authors: Erwinsyah Erwinsyah , Ubaedillah Ibnu
Published: January 2025

This study examines the influence of student motivation and educational frameworks on high school biology achievement in Cirebon, Indonesia. It uses questionnaire statements and multivariate regression analysis to explore the relationship between students' perceptions of learning models, motivation, and grades. Effective learning improves student engagement and comprehension. The study's reliable instruments highlight the importance of structured learning and motivation for academic success.
Šešėlinis švietimas: koncepto analizė
Authors: Kačinskaitė-Urbonienė Ieva
Published: January 2025

Šiame straipsnyje pristatomas šešėlinio švietimo fenomenas. Tyrimo tikslas buvo išanalizuoti ir konceptualizuoti šešėlinio švietimo sąvoką, atskleisti pagrindines koncepto charakteristikas, prielaidas, pasekmes. Remiantis Walker ir Avant (2005) tyrimo strategija, atskleista, jog šešėlinis švietimas yra sudėtingas, tarpdiscipliniškas reiškinys, apimantis visas mokamas formalų ugdymą papildančias tiesiogines ir netiesiogines priemones bei veiklas, vykdomas už formalaus ugdymo ribų.
Fisher-Tropsch synthesis in the presence of bifunctional catalysts based on hierarchical zeolite MFI
Authors: Papeta Olga , Zubkov Ivan , Saliev Alexey , Kataria Yash , Ponomarev Danila , Yakovenko Roman
Published: January 2025

The effect of the hierarchical pore structure of ZSM-5 zeolites obtained by alkali modification on the composition of the synthesized products and the catalytic properties of bifunctional cobalt catalysts for the Fischer-Tropsch synthesis was studied. The bifunctional catalysts were prepared by mechanically mixing the Co-Al2O3/SiO2 catalyst, HZSM-5 zeolite and boehmite binder. The HZSM-5 zeolite was preliminarily subjected to alkali modification with different alkali concentrations (0.1, 0.25, 0.5, and 1.0 M) to create a hierarchical porous structure and change the acidic properties of the zeolite. The samples of ZSM-5 zeolites and the bifunctional catalysts prepared on their basis were characterized by SEM, low-temperature nitrogen adsorption-desorption, X-ray diffraction and H2 TPR. Catalytic tests were carried out in a tubular reactor with a fixed catalyst bed at a pressure of 2.0 MPa, a temperature of 250 °C and a gas space velocity of 1000 h–1. The tests were performed for 70–80 h of continuous operation. The fractional composition of the Fischer-Tropsch synthesis products was studied at a temperature of 250 °C. It was shown that preliminary treatment of zeolite ZSM-5 with a 0.5 M alkali solution contributed to an increase in the yield and productivity of branched hydrocarbons to 62% and 70.3 kg/(m3cat∙h) compared to a similar bifunctional catalyst based on the industrial microporous zeolite HZSM-5.
Modified bipolar membrane for electrodialysis processing of highly concentrated sodium nitrate and boric acid solution
Authors: Romanyuk Nazar , Loza Julia , Loza Sergey , Kovalchuk Nikita , Zabolotsky Victor
Published: January 2025

We studied the characteristics of two membranes: the industrial bipolar membrane MB-3, consisting of two layers, i.e., an anion exchanger with quaternary ammonium groups and a cation exchanger with phosphonate groups, and the membrane MB-3M, modified on the cation exchange side with a 100 μm thick layer of perfluorosulfonic acid. The analysis of the selectivity of the initial and modified membranes in a wide range of current densities (0.25–4 A/dm2) showed that the application of a perfluorosulfonic acid layer leads to a decrease in the transport of nitrate anions by 18–40 times, depending on the current density, compared to the initial industrial membrane MB-3. Experiments on electrodialysis processing of a mixed 0.5 M NaNO3 and 0.75 M H3BO3 solution showed that the use of a bipolar membrane modified with a perfluorosulfonic acid, at a sodium nitrate processing degree of 75%, allows obtaining a 1.01 M NaOH solution with a low impurity content (0.08 M sodium nitrate and 0.09 M boric acid) and 1.17 M HNO3 (sodium nitrate content 0.09 M, boric acid 0.09 M). When using the initial MB-3 membrane under the same conditions, 0.77 M NaOH with a high content of impurities (0.25 M sodium nitrate and 0.08 M boric acid) and 1.03 M HNO3 (containing 0.09 M sodium nitrate and 0.09 M boric acid) are obtained. The energy consumption for processing is comparable to that for the initial bipolar membrane MB-3 and amounts to 0.15 kW·h/mol.
Some aspects of the organization of self-educational activities of university students in the study of mathematics
Authors: Gumennikova Julia , Chernitsyna Ruzilya , Kamaldinova Zulfiya , Akhmadullin Fanis
Published: January 2025

The article presents the methodology developed by the authors for organizing
self-educational activities of university students in their study of mathematics, which is based on the model of multi-level cognitive activity. Analyzing the literature devoted to the issues of self-education, independent work and cognitive self-educational activities of students, the authors come to the need to increase the number of hours allocated for independent preparation of students, and, consequently, to the priority of the task of competent organization of such work.
The authors describe four stages of students' cognitive activity at the reproductive and productive levels. Specific examples of activity at each of them are given; it is noted that achieving the third level of cognitive activity by students is already a good result. The application of the developed model in the preparation of students of the construction specialty at the Volga State Transport University is shown.
As examples of tasks corresponding to the first three levels of cognitive activity, mathematical and applied problems from the sections «Analytical Geometry», «Mathematical Analysis» and «Mathematical Statistics» are given. The task of the fourth level is the work «Remarkable Curves and Their Practical Application». The article also presents the results of testing the developed model of cognitive activity. The effectiveness of the proposed methodology is proven by a comparison of the exam results when training in the first year was conducted traditionally, and in the second — using the presented model. In particular, the grades «excellent» and «good» in the second semester were 19,3 % and 26,1 % of the total, respectively, in the fourth semester, these indicators significantly improved and amounted to 28,9 % and 35,1 %.
Features of oculomotor activity in children with intellectual disabilities when reading text
Authors: Dunaevskaya Elvira
Published: January 2025

The article presents an analysis of oculomotor activity observed during visual perception, reading text in primary school children with intellectual disabilities. There is a need to expand knowledge on visual perception of text reading in this category of children, since the heterogeneity of intellectual disabilities is expanding. Previous studies show that such children have a slow speed of perception, difficulties in establishing associative links, a slow rate of comprehension, a low level of self-control, and a limited ability to predict. With increasing technological capabilities, there is a need to study oculomotor activity in children with intellectual disabilities in order to identify features such as where the gaze is directed, how long the gaze is held on a certain word, what is the trajectory of the gaze forward, backward, up, down. The eye tracking method, or eye movement registration, is considered one of the most promising approaches. It meets the requirements of the ecological validity of the experiment. It becomes relevant to study how a child sees, perceives and reads the text. The question is raised about studying such parameters as fixation time; time of the first fixation; number of returns; amplitude and number of all saccades. In order to record these parameters, the child was presented with a text that he should simply read out loud. The program records all indicators. As a result of data processing, it was revealed that children with intellectual disabilities have difficulties with the search task, as well as difficulties in deciphering the text and, in particular, the words that make up the text. The time of the first fixation is increased. The number of all fixations and the number of returns indicate that the reading process is a cognitive load for them due to the fact that the process of forecasting and self-control is not formed in them.
QUESTÕES DE RAÇA EM LIVROS DIDÁTICOS - DESAFIOS NO CAMPO DA DEMOCRATIZAÇÃO DA EDUCAÇÃO
Authors: Pereira Ana Valéria Dias , Fetzner Andréa Rosana , Torres Santomé Jurjo
Published: January 2025

Este trabalho está vinculado à tese de doutoramento concluída no Programa de Pós-Graduação em Educação, da Universidade Federal do Estado do Rio de Janeiro (PPEGEdu/UNIRIO. A pesquisa contou com financiamento da Capes na etapa do doutorado sanduíche, que aconteceu na Universidade da Coruña (UDC), em A Coruña/Galícia/Espanha, e com a FAPERJ, que contribuiu com o financiamento dos estudos realizados no Gabinete de Pesquisa em Desenvolvimento Curricular (que funciona no PPEGEdu/UNIRIO). O estudo foi realizado na rede pública de educação municipal de São Gonçalo e propôs a análise de livros didáticos em língua portuguesa, utilizados na maioria das escolas da rede supracitada. O objetivo principal foi identificar e compreender conflitos e convergências existentes entre a lógica das relações sociais representadas nos livros analisados e a realidade social do município. Do ponto de vista metodológico, foi um estudo qualitativo e documental que, por meio do materialismo histórico-dialético, procurou interpretar categorias como a de exclusão pela invisibilidade e pela deturpação da realidade. Das considerações que formulamos, destacamos a constatação de que as escolas, por meio de livros didáticos, podem reproduzir compreensões sociais que reforçam diferentes marcas que promovem a exclusão e, no caso do presente trabalho, na reprodução do racismo.
Intervención educativa sobre la sexualidad en adolescentes de la Secundaria Básica “Cosme Torres Izquierdo”
Authors: Espinosa Castro Liliana , Gutiérrez Favier Esther Bárbara , Pérez Marrero Alián
Published: January 2025

Introducción: La sexualidad es un tema que ha despertado el interés de hombres de todas las épocas. Objetivo: Implementar un programa educativo de intervención en estudiantes de la Secundaria Básica “Cosme Torres Izquierdo”. Métodos: Se realizó un estudio cuasi-experimental en el área de salud de Vázquez, desde 2019 hasta 2021. El universo lo constituyeron 74 adolescentes de 11 a 14 años y se seleccionó por método probabilístico de muestreo aleatorio una muestra n=52. Se estudiaron las variables: edad, sexo, escolaridad, estado civil y conocimiento sobre sexualidad en las dimensiones: métodos anticonceptivos, infecciones de transmisión sexual, embarazo, aborto, planificación familiar, características psicosexuales de la adolescencia, causas de cambio frecuente de pareja, opinión sobre el amor y relación de pareja, relaciones sexuales durante la adolescencia. El conocimiento se evaluó en mal, regular y bien, antes y después de la intervención, que se realizó en tres etapas: planificación, intervención y evaluación. La información se obtuvo por un cuestionario (pretest y postest), y se analizó a través del cálculo de porcentaje, media, desviación estándar, y para evaluar la efectividad los estadígrafos coeficiente de variación y Ji2. Resultados: Predominó el sexo masculino 61,5%. Después de la intervención se incrementó el conocimiento sobre los métodos anticonceptivos (CV= + 100%, X2= 11,3), se demostró la efectividad de la intervención realizada (CV= + 100%, X2= 7,4). Conclusiones: Los cambios del conocimiento más significativos fueron sobre: identificación de métodos anticonceptivos, relaciones sexuales durante la adolescencia e infecciones de transmisión sexual.
Application of low-temperature reduction by hydrogen for enhancing the magnetic characteristics of several iron ores
Authors: Konyukhov Yu. V. , Khanna R. , Maslennikov N. A. , Li K. , Liang Z. , Burmistrov I. N. , Karpenkov D. Yu. , Kashevskii S. V. , Kravchenko M. V.
Published: January 2025

The conversion of non-magnetic or weakly magnetic constituents of iron ores into the magnetic ‘magnetite’ phase was investigated using partial reduction by hydrogen at temperatures below 400 °C. The examined four commercial iron ores from Russian and Chinese deposits have significant differences in their compositions and morphologies. All ore samples were crushed using mechanical abrasion in a stamp and sieved with a mesh size of 1.5 mm. Reduction was carried out in a tube furnace under isothermal conditions at 375 and 400 °C for one hour. To study the kinetics of the reduction process, non-isothermal studies of selected ores were сonducted using a thermogravimetric analyzer with heating to 800 °C at a heating rate of 10 °C/min in hydrogen flow. The authors made a detailed characterization of the annealed products using X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy to determine the magnetic characteristics of initial and partially reduced ores. X-ray diffraction patterns showed hematite peaks in the initial samples; both magnetite and metallic iron peaks were detected in the samples reduced at 375 and 400 °C. Such behavior was observed for all four samples under investigation. The most important result of the study is the confirmation of an order of magnitude increase in saturation magnetization for hematite ores, in addition the reduced ore samples show soft magnetic properties with average coercive force values ​​of approximately 20 kA/m. Application of the low-temperature reduction by hydrogen to iron-containing ores is very promising for production of the materials that could later be subjected to enrichment using magnetic separation methods.
Sub-electrode gap and specific electrical resistance of a ferroalloy furnace bath
Authors: Shkirmontov A. P.
Published: January 2025

To increase the energy-technological efficiency of a ferroalloy furnace, the author studied the smelting of 45 % ferrosilicon by a carbon-thermal method. In some cases, methods for measuring and changing the specific electrical resistance of charge materials at temperatures up to 1900 K are used to study the technology of smelting ferroalloys for smelting manganese alloys from various ores, carbonaceous ferrochrome, ferrosilicon, ferrosilicon manganese and ferrosilicon aluminum. For a series of heats of 45 % ferrosilicon, measurements of the useful voltage, electrode current, and power factor were carried out. As smelting progressed, the bath resistance was calculated and for the reaction melting zone (melting crucible), the specific electrical resistance in the single-electrode version of the furnace was determined at various sub-electrode gaps. Smelting using technology with an increased sub-electrode gap was performed in a large-scale experimental electric furnace with a capacity of 130 ‒ 290 kV·A. As a result, it was found that an increase in the sub-electrode gap from (0.6 ÷ 0.9) to 6.0 of electrode diameters leads to the effect of a 2.5-fold increase in resistance, voltage and power in the bath (each indicator), but at the same time to a slight decrease in the specific electrical resistance of the melting zone of the furnace with a constant diameter (150 mm) of the electrode. The optimal sub-electrode gap (electrode – substrate distance) in the bath of a single-electrode furnace was determined by changing the specific electrical resistance. The optimal value is 3.33 of the electrode diameter. Assuming deviations of about ±5 % of this value, it is possible to efficiently smelt 45 % ferrosilicon in the range of 3.2 ‒ 3.5 electrode diameters for the sub-electrode gap during the ore recovery process with a closed arc.
Structural-phase composition and mechanical properties of stainless steel – low carbon steel metal composite
Authors: Danilov V. I. , Orlova D. V. , Shlyakhova G. V. , Mironov Yu. P. , Petrova E. D.
Published: January 2025

The subject of the study is a metal composite obtained by electric arc surfacing in argon of corrosion–resistant steel on low-carbon steel. Powdered chromium-nickel steel was deposited with an increased content of silicon and molybdenum relative to the traditional composition. In this work, we studied the elemental and structural-phase compositions, as well as the mechanical properties of both components of the material and the composite as a whole in the initial state and after annealing at 680 °C for 3 h. The main part of the corrosion-resistant component is a two-phase auste­nitic-ferritic mixture with a ratio of 65 % HCC phase and 30 % BCC phase. The material has high microhardness (more than 4000 MPa). The highest microhardness (4550 MPa) is observed in a narrow strip of deposited metal with a width of 25 μm, where the phase composition is represented by martensite (BCC), and austenite is absent. The transition across the boundary into carbon steel is accompanied by a decrease in microhardness to 1225 MPa. Here, a decarbonized zone with a width of 180 μm was formed near the fusion line. The resulting non-equilibrium stress-strain state of the composite led to low strength, low plasticity and brittle fracture of the deposited layer during tensile testing. After annealing, microstructure of the corrosion-resistant component became more uniform in size of both austenitic and ferritic structural elements. As a result of these transformations, internal stresses decreased and microhardness decreased to 3100 MPa. At the same time, the width of the decarbonized zone in the base metal increased. All these changes led to the fact that, although the tensile stress of the annealed material increased by 8 %, and the deformation to rupture – by 27 %, however, nature of the fracture remained brittle and rupture still occurs along the deposited layer. This is determined by the austenitic-ferritic phase composition of the stainless component, which, in turn, is determined by chemical composition of the deposited material.
Improving operation of a drawing mill
Authors: Nikitin A. G. , Fastykovskii A. R. , Gerasimov S. P.
Published: January 2025

The report considers the purpose of drawing mills and possible violations of the technological process associated with the design flaws of drawing mill drive. We analyzed the design of a planetary gearbox with a common carrier used in the drive of the stretching drum of a drawing mill. During the operation of such a transmission, there are disadvantages: due to the imbalance of links of the mechanism relative to the central axis, additional dynamic forces arise. This design transmits movement from the leading link to the carrier only through one satellite, the teeth of which perceive all the force transmitted by the torque, which reduces the reliability of the gearbox and the drive as a whole. The design of a three-satellite balanced self-aligning planetary gearbox, free from these disadvantages, is described.
Explorando nuevos horizontes: enfoques metodológicos en ciencias sociales
Authors: Fernández-Matos Dhayana Carolina
Published: January 2025

La educación, sin duda alguna, se vincula con todas las áreas del conocimiento. Sin embargo, su relación con las ciencias sociales es fundamental para buscar explicaciones de la realidad que nos circunda y, en ese camino, las investigaciones que se desarrollan en esta área contribuyen con una mejor comprensión de las transformaciones sociales
DESIGN OF A VARIABLE FREQUENCY DRIVE WITH A PROPORTIONAL-INTEGRAL-DIFFERENTIAL CONTROLLER FOR A MAIN PUMP UNIT
Authors:   Ufa State Petroleum Technological University, Siraev Fanis F. , Khazieva Regina T. ,   Ufa State Petroleum Technological University
Published: January 2025

Relevance Improving the service of industrial facilities, ensuring the efficiency and reliability of all enterprise structures, as well as saving energy are pressing problems of line operation dispatcher stations, which indicates the importance of modernizing obsolete production equipment. Aim of research In this paper the design of frequency-controlled electric drive with PID control of the main pump unit is carried out to increase its energy efficiency, as well as to reduce the frequency of unscheduled repairs. Research methods Design of variable frequency drive with PID-controller of synchronous motor is carried out in MATLAB/Simulink package. A characteristic feature of the computer model is the possibility of correct adjustment of the PID controller, which reduces the mismatch error associated with varying pressure in the main pump unit, resulting in more accurate control signals to the keys of the three-phase stand-alone inverter. Results The authors consider the possibility of implementing a frequencycontrolled electric drive with PID control. Mathematical and computer modeling of the electric drive of a pump unit driven by a synchronous electric motor, which has significant advantages, has been performed. As a result of the modeling, diagrams of the parameters of the system's constituent elements were obtained. Having analyzed the diagrams, one can judge the possibility of operating a frequency-controlled drive of a synchronous electric motor, since this method of controlling a synchronous electric motor is the most effective.
70TH ANNIVERSARY OF THE ELECTRICAL ENGINEERING AND ELECTRICAL EQUIPMENT OF ENTERPRISES DEPARTMENT OF USPTU
Authors:   Ufa State Petroleum Technological University, Shabanov Vitaliy A. , Khazieva Regina T. ,   Ufa State Petroleum Technological University, Khakimyanov Marat I. ,   Ufa State Petroleum Technological University
Published: January 2025

The article examines the history of Electrical Engineering and
Electrical Equipment of Enterprises Department of Ufa State Petroleum
Technological University from its foundation to the present day. The main
stages in the development of the department, achievements in educational
and scientific activities are listed.
The Electrical Engineering and Electrical Equipment of Enterprises
Department associates its future with young people who, after completing
their master's degree, carry out teaching work and are actively involved in
science in graduate school. While being still senior students, they begin
working at the department, win grants to finance their research, which
later becomes their dissertations.
Elemental Substitution and Compositional Evolution of Tourmaline and Dumortierite Formation in Muscovite-schist Rock of Sakoli Area in Bhandara District, Central India
Authors: Dandekar Sneha , Pande Kavita , Peshwe Dilip
Published: January 2025

Paleoproterozoic metapelitic schistose rocks are closely associated with the tourmaline deposit in the Girola area of the Sakoli Group of rocks of the Central India Tectonic Zone (CITZ). In this area, shear zones have effectively played a significant role in the formation and distribution of tourmaline along with hosts of minerals like garnet, sillimanite, dumortierite, etc. Local tourmaline concentrations can be found within quartz mylonites, granite mylonites, phyllonites, etc. wherein they are present as solitary crystal clusters, or discontinuous tourmaline bands or pockets. Mineralogical and chemical changes have been documented within these rocks in Girola Hill. The preliminary study had indicated the presence of tourmaline varieties, namely- schorl, dravite, foitite, elbite, liddicoatite, dumortierite, along with sillimanite, muscovite, sericite, rutile, topaz, and corundum. The presence of apatite, Sr-phosphate, and fluorite was also noticed. Within the assemblage zone, variations in boron metasomatism and potash leaching appear to be regulating variations in mineral assemblages and overall rock chemistry. Magmatic-metasomatic fluids have partially altered the original sedimentary patterns, according to the elemental analysis of the materials. The alteration could be due to interactions of schists with B-, F-carrying fluid. Tourmaline-rich assemblages develop when the fluid’s boron reacts with the nearby schistose rocks, leading to sheet silicate to cease functioning as a trap for Na, K, and Ba. Further metasomatic activity results in the formation of dumortierite from the tourmaline assemblages.
Analysis of Landfill Site Suitability for Solid Waste Disposal in the Ranchi District of Jharkhand, India Using Analytical Hierarchy Process and Geo-Spatial Techniques
Authors: Shubham  , Singh Ajai
Published: January 2025

The selection of an appropriate landfill site is a complex issue due to the involvement of numerous criteria and constraints. A non-engineered and unsuitable site can harm the environment, society and economy of an area. This paper focuses on the application of Geographic Information System (GIS) and Analytical Hierarchy Process (AHP), a multi-criteria decisionmaking technique, to determine suitable landfill sites. A total of nine parameters have been used namely; groundwater depth, slope, geology, existing landfill site, drainage density, road network, land use and land cover (LULC), railway lines and airport. The weights were calculated using AHP. A landfill site suitability map was generated with 5 classified areas namely; most unsuitable (0.07%), unsuitable (5.42%), less suitable (23.94%), moderately suitable (58.24%) and most suitable (12.38%). The areas identified in the study can be used by policymakers in both urban as well as rural developmental planning and waste management. Using the patches of land from the landfill suitability map, a decentralised community-based landfill model can also be adopted to minimize and possibly eliminate the need for large landfill sites.
Temporal Assessment of Recent Erosion and Accretion in the Ganga and Alaknanda Rivers in Parts of Garhwal Himalaya, India: Unveiling the Linkages with Anthropogenic and Climatic Events
Authors: Adhikari Varun , Shankar Ravi
Published: January 2025

Unravelling erosion and accretion patterns of rivers with the application of remote sensing and GIS tools leads us to understand the river morphology and its behaviour. In the recent past, the catchment areas of river Ganga and its major tributary Alaknanda River affirmed some unprecedented anthropogenic interventions such as infrastructure boom, and deforestation as well as catastrophic climatic events. Considering these factors, the present study evaluates the erosion and accretion pattern of these river sections in the Garhwal Himalaya, India. The shape files of river sections of duration between 2017 to 2022 were extracted from high-resolution Sentinel-2, Land Use Land Cover (LULC) imageries. To understand their exactitude effect on river dynamics, these patterns are further correlated with recognised anthropogenic activities and natural events.
Duration of the Occurrence of Mw ≥ 4.5 Aftershocks of the 2 April 2024 Mw 7.4 Hualin, Taiwan Earthquake
Authors: Rajesh Rekapalli , Gupta Harsh K.
Published: January 2025

Taiwan was shaken in the early morning of 2 April 2024 by an Mw 7.4 earthquake. Earthquakes of magnitude 7 and above are normally followed by damaging aftershocks. It is useful to have an estimate as to how long such aftershocks will continue. This knowledge helps in the recovery process. The duration of occurrence of the aftershocks of certain magnitudes can be estimated using Omori’s Law. Using the data of the aftershocks of the first 14 days after the Hualien earthquake, we estimated that the Mw ≥ 4.5 aftershocks shall continue for 80 days. Now, we are presenting analysis of recently available catalog up to 80 days to check and validate the prediction. Our analysis suggests that the rate of Mw ≥ 4.5 aftershocks in the region has gone down to the background seismicity rate after the estimated period of time.
EB buffer v1
Authors: Schmidt Anna , Patova Anya
Published: January 2025

EB buffer ('Elution buffer', 10 mM Tris-HCl, pH 8.0) is used in various steps of sample preparation by the Ancient DNA Core Unit of the MPI-EVA.
KAPP-Sen TMC: Kidney donor selection and wedge biopsy preparation v1
Authors: Alcoforado Diniz Juliana , Peña Alejandro , Robson Paul
Published: January 2025

This protocol outlines the procedure for obtaining and processing wedge biopsies from donor nephrectomies. After the kidney is removed from the donor, wedge biopsy is taken from the upper pole area in a controlled open approach. These biopsies are preferred over needle biopsies due to lower risk of complications. The samples are initially fixated in 10% neutral buffered formalin (NBF) at room temperature for 24 hours, then transferred to 70% cold ethanol and refrigerated for further paraffin embedding.
isolation of Salmonella and pathogenic E. coli in broiler farms in Uganda v1
Authors: Ssemakadde Thomas , Pauline Petra Nalumaga , Collins Busingye Jude , Bazira Joel , Taseera Kabanda
Published: January 2025

This study investigated the prevalence, antimicrobial resistance, and extended-spectrum β-lactamase (ESBL) production in Escherichia coli and Salmonella isolated from broiler farms in Wakiso district, Uganda. A cross-sectional design was employed between August and September 2021. A total of 216 farms were selected using simple random sampling, and pooled samples of fresh fecal droppings and cloacal swabs were collected. Microbiological isolation and identification were conducted using on selective media, followed by phenotypic and genotypic assays to determine antimicrobial resistance profiles. Antibiotic susceptibility testing was performed using the Kirby-Bauer disk diffusion method, and results were interpreted according to CLSI 2020 guidelines. Phenotypic ESBL production was screened using the double-disc synergy method. DNA extraction and conventional PCR were employed to confirm the presence of the blaTEM resistance gene. Sdata was analysed using Stata to identify significant associations between variables. The findings highlight a significant prevalence of antimicrobial resistance and the emergence of ESBL-producing Escherichia coli and Salmonella in broiler farms. This calls for antimicrobial stewardship in poultry production.
К идентификации ситуативных ролей сущностей в контексте задачи семантического информационного поиска
Authors: Гаврилкина Анастасия Сергеевна , Максимов Николай Вениаминович , Голицына Ольга Леонидовна
Published: January 2025

В статье рассматриваются подходы к идентификации семантических ролей сущностей в контексте задачи семантического информационного поиска. Проанализированы различные определения ролей. Предложен подход к назначению ролей в соответствии с классами онтологии отношений, построенной на основе расширенной функциональной модели. Проведён эксперимент по оценке качества автоматической идентификации ролей Причина, Основание, Условие.
Функционирование устойчивой модели X от слова Y в современном интернет-пространстве
Authors: Локалина Юлия Сергеевна
Published: January 2025

В работе рассматриваются особенности функционирования устойчивой модели X от слова Y, которая способствует появлению в языке таких конструкций, как от слова совсем, от слова вообще и под. Такие фразеологизированные выражения произошли от свободного сочетания от слова, которое обычно употребляется как отсылка к этимологии слова. Компоненты, выступающие в роли такой «отсылки» (совсем, вообще и др.), являются усилительными единицами, так называемыми интенсификаторами. Это достаточно новое в языке явление порождает омонимию в поисковых сервисах: появляется большое количество вариантов с ключевым сочетанием от слова: как
отсылка к этимологии, так и другие случаи (конструкции, свойственные разговорной речи). В результате проведённого исследования были выявлены пунктуационные, синтаксические и др. особенности употребления конструкции от слова совсем; проанализированы подобные конструкции, построенные по модели X от слова Y. Эта модель функционирует настолько свободно, что на месте X и Y могут стоять любые части речи, из-за чего поисковый запрос «от слова» «выдаёт» большое количество употреблений с чем-либо, однако не ищет случаи с использованием графики и кавычек. Кроме этого, на основе собранных данных была построена шкала интенсификации, которая собрала все возможные варианты использования конструкции в Интернете. Полученные результаты могут быть использованы в дальнейших исследованиях, связанных с интенсифицирующими конструкциями, языковыми корпусами и поисковыми сервисами.
Сравнение NLP-моделей на задаче суммаризации академических текстов на русском языке
Authors: Мельничук Дмитрий Вадимович , Носкина Анастасия Викторовна
Published: January 2025

В данном исследовании сравниваются основные NLP-модели, такие, как mBART, T5 и GPT-3, которые в своей основе имеют архитектуру трансформеров, т. е. механизм «внимания», кодирующий, декодирующий и нормализующий слои. Данные предобученные модели на задаче суммаризации русского текста были использованы для суммаризации научных статей на русском языке. Для выявления лучшей модели на данном классе задач в исследовании был использован набор данных, включающий в себя тексты научных статей и соответствующие им авторские аннотации на русском языке. Далее, стандартными для задачи суммаризации статистическими метриками, такими, как семейство метрик ROUGE (ROUGE-1, ROUGE-2 и ROUGE-L), а также BLEU и Perplexity, находилась наиболее эффективная модель в рамках поставленной задачи, т. е. сравнивались по отдельности сгенерированные варианты аннотаций с авторской. Полученные результаты имеют практическую ценность, так как суммаризация текста является важной задачей в области обработки естественного языка.
Сведения, информация и информационная коммуникация
Authors: Ходоровский Леонард Абрамович
Published: January 2025

Рассматривается соотношение понятий «сведения» и «информация», являющихся элементами процесса «информационная коммуникация». Дается определение понятия «сведения о свойствах сущности» как обозначение неоднородности реального или вымышленного мира и неравномерности протекания процессов в этом мире, характеризующих эту сущность. Информация о сущности определяется как сведения о ней, влияющие на то, каким образом должна выполняться в системе та деятельность, в которой участвует эта сущность. Информационная коммуникация рассматривается как многошаговый процесс, обеспечивающий преобразование сведений о сущности и передачу их системе, использующей эти сведения. Сведения рассматриваются не как простое отражение результатов преобразования на очередном шаге информационной коммуникации, но как структурированное сообщение о свойствах сущности.
Корпус текстов по корпусной лингвистике: состав и этапы формирования
Authors: Митрофанова Ольга Александровна , Адамова Мария Антоновна , Букреева Людмила Александровна , Зернова Алиса Кирилловна , Литвинова Анна Артемовна , Павликова Владислава Станиславовна , Сологуб Полина Сергеевна
Published: January 2025

Статья посвящена проблемам разработки корпуса статей по корпусной лингвистике, создаваемого на кафедре математической лингвистики СПбГУ. Корпус создан под руководством В. П. Захарова и включает в себя тексты докладов конференции «Корпусная лингвистика» с 2002 по 2021 гг., семинара «Компьютерная лингвистика и вычислительные онтологии» с 2011 по 2023 гг., а также некоторые другие материалы. В ходе работы над корпусным ресурсом была проведена унификация формата представления текстов, исследована структура статей. Осуществлены эксперименты по генерации ключевых слов и аннотаций в тех случаях, когда авторский текст не содержал данную информацию. Исследованы типы именованных сущностей, зафиксированных в корпусе, реализован алгоритм их разметки. Проведен анализ распределения докладов по тематическим блокам конференций в соответствии со схемой экспертной разметки.
Метаразметка и визуализация данных в корпусе текстов по корпусной лингвистике
Authors: Сухан Даниил Дмитриевич , Плюснина Елизавета Алексеевна
Published: January 2025

В статье представлены результаты проекта по представлению и визуализации метаданных для корпуса статей по корпусной лингвистике, разработанного на кафедре математической лингвистики СПбГУ. Корпус создан под руководством В. П. Захарова и включает в себя тексты докладов конференции «Корпусная лингвистика» с 2002 по 2021 гг., семинара «Компьютерная лингвистика и вычислительные онтологии» конференции IMS с 2011 по 2023 гг., а также некоторые другие материалы. В ходе работы над корпусным ресурсом был унифицирован формат разметки данных о статьях и их авторах и реализован алгоритм автоматизированного дополнения метаинформации. Осуществлены эксперименты по визуализации связей между элементами метаданных с использованием инструментов для построения графов Gephi, WebOWL, Protégé, библиотек PyGraphviz и NetworkX для языка программирования Python. Проведен анализ результатов визуализации, реализован поиск и навигация по построенным графам в формате веб-страницы.