bluuebunny/crossref_metadata_2025 huggingface dataset:
Квазиграммианные решения и кинковая динамика $M$-компонентной полудискретной интегрируемой системы
Authors: Inam Afifa , ul Hassan Mahmood
Published: September 2024

сследуется стандартное бинарное преобразование Дарбу для $M$-компонентной полудискретной интегрируемой системы. Для этого используются ассоциированные с парой Лакса частные собственные векторы, лежащие как в прямом пространстве, так и в сопряженном пространстве, с помощью которых строится матрица Дарбу. Как результат, получается матрица бинарного преобразования Дарбу. Путем последовательного применения стандартного бинарного преобразования Дарбу выведены квазиграммианные солитонные решения $M$-компонентной полудискретной интегрируемой системы. Также исследуется преобразование Дарбу матричных решений полудискретной интегрируемой системы; решения выражаются через квазидетерминанты. Кроме того, подробно обсуждается преобразование Дарбу скалярных решений системы; решения выражаются как отношения детерминантов. Исследовано стандартное бинарное преобразование Дарбу и его применение для получения квазиграммианных многокинковых и многосолитонных решений $M$-компонентной полудискретной интегрируемой системы. Показано, что квазиграммианные решения сводятся к элементарным решениям путем редукции спектральных параметров.
$3$-расщепленный оператор Казимира простых супералгебр Ли $sl(M|N)$ и $osp(M|N)$ в представлении $\operatorname{ad}^{\otimes 3}$ и параметризация Вожеля
Authors: Isaev Aleksei Petrovich , Provorov Alexander Alekseevich
Published: September 2024

Для супералгебр Ли $osp(M|N)$ и $sl(M|N)$ найдены универсальные характеристические тождества для $3$-расщепленного оператора Казимира в представлении $\operatorname{ad}^{\otimes 3}$. С помощью этих тождеств построены проекторы на инвариантные подпространства этих представлений и найдены универсальные формулы для их суперазмерностей. Все формулы находятся в соответствии с универсальным описанием подпредставлений представления $\operatorname{ad}^{\otimes 3}$ простых базовых супералгебр Ли в терминах параметров Вожеля.
Влияние глобального монополя на квантовые системы с экспоненциальным потенциалом
Authors: Ahmed Faizuddin , Bouzenada Abdelmalek
Published: September 2024

Изучается волновое уравнение Шредингера с экспоненциальным потенциалом в присутствии точечного глобального монополя. Экспоненциальный потенциал представляет собой суперпозицию обобщенного $q$-деформированного потенциала Хюльтена и потенциала типа Юкавы. С использованием аппроксимационной схемы Грина-Олдрича для анализа радиальной части уравнения получены приближенные решения задачи на собственные значения в терминах специальных функций. Показано, что присутствие топологического дефекта влияет на собственные значения рассматриваемой модели с экспоненциальным потенциалом, в частности, в отличие от результатов для плоского пространства, исчезает вырождение спектра. Полученные решения задачи на собственные значения использованы для анализа нескольких моделей с суперпозицией потенциалов.
О некоторых линейных уравнениях, связанных с бездисперсионными интегрируемыми системами
Authors: Bogdanov Leonid Vitalevich
Published: September 2024

Недавно предложенная схема матричного расширения бездисперсионных интегрируемых систем применяется для абелевого случая, в котором она приводит к линейным уравнениям, связанным с первоначальной бездисперсионной системой. В рассмотренных примерах эти уравнения могут быть интерпретированы в терминах абелевых калибровочных полей на геометрическом фоне, определяемом бездисперсионной системой. Они также связаны с линеаризацией начальных систем. Построены решения этих линейных уравнений в терминах волновых функций пары Лакса бездисперсионных систем, которая представляется в виде некоторых векторных полей.
The Effects of Functional Electrical Stimulation Cycling on Muscle Spasticity in Individuals With Spinal Cord Injury: A Systematic Review
Authors: Couper Stephanie K. , Smith Moira
Published: October 2024

Objectives:

To evaluate the effects of functional electrical stimulation (FES) cycling on muscle spasticity in individuals with spinal cord injury (SCI) and provide recommendations for optimal FES cycling parameters to treat muscle spasticity.

Method:

In this systematic review, database searches of CINAHL, MEDLINE (Ovid), PEDro, PubMed, and Scopus were conducted to identify relevant studies published up to June 2023. Studies were screened for eligibility. Those that included an FES cycling intervention, an outcome measure of spasticity, and were available in full-text English were included. Two independent reviewers extracted the data and appraised the literature via the Crowe Critical Appraisal Tool (CCAT).

Results:

Of the 1782 studies identified, 16 satisfied the criteria for this review. Two-hundred and three participants were included, aged 7 to 80 years old. Ten studies identified a reduction in spasticity following FES cycling via objective or subjective outcome measures. Methodological quality was variable, with CCAT scores ranging from 19/40 (48%) to 35/40 (88%). National Health and Medical Research Council hierarchy levels ranged from II to IV.

Conclusion:

Evidence for the effectiveness of FES cycling to reduce muscle spasticity remains inconclusive. Long-term effects on spasticity were evident in moderate- to high-quality studies where FES cycling was conducted for 60 minutes, three times per week for 16 weeks. Additional research with larger sample sizes is warranted to confirm these findings. Further clarification of the optimal parameters of FES frequency, amplitude, and pulse width to reduce spasticity is required.
Political Education for New Voters Insight into Democracy as an Intelligent Citizen
Authors: Kalfin  , Azahra Astrid Sulistya , Pirdaus Dede Irman
Published: September 2024

New voters consisting of students, college students or voters with an age range of 17 to 21 years are a unique segment, often giving rise to surprises and certainly promising in terms of quantity. This study aims to describe the importance of political education for new voters in general elections in order to become smart voters and understand the political dynamics that occur. The study method used is a library research approach. Data and information collection techniques are carried out by utilizing documents in the form of articles, manuscripts, books, and other relevant documents for analysis. Data and information analysis is carried out using a descriptive analysis method. The results of the study show that it is important for new voters to be given education so that they have the right political literacy. Education for new voters as a source of learning for civic education to increase the political participation of new voters participating in education. Active participation of new voters as citizens in political activities is part of the measure of the effectiveness of the democratization process. The contribution of the results of this study is expected so that every citizen, especially new voters, is able to play a role as an intelligent, democratic, and characterful and civilized citizen.
Legal Awareness Program in Cibungur Village, Warungponteng District, Tasikmalaya Regency, West Java, Indonesia
Authors: Ibrahim Riza Andrian , Azahra Astrid Sulistya , Lianingsih Nestia
Published: September 2024

The people of Cibungur Village, Warungponteng District, Tasikmalaya Regency, West Java, generally have a level of legal awareness that needs improvement, resulting in legal issues. To address the lack of understanding about the law, it is deemed necessary to implement the Keluarga Sadar Hukum (Kadarkum) or Legal Awareness Family Program in an effective and sustainable manner so that the community truly understands the importance of laws that must be followed. This study aims to identify and understand the factors that influence legal awareness, so that the community can comply with the law; and to foster legal awareness within society in accordance with the regulations governing social life in the community. Data and information were obtained through observation, outreach, and interviews. The method used for analyzing the data and information is the normative juridical research method, which integrates existing legal rules with social phenomena in the community by observing the activities of legal awareness families in Cibungur Village, Warungponteng District. The results of the analysis show that community awareness of the law is influenced by several factors, including knowledge, recognition, appreciation, and compliance with the law, which are fundamental aspects.
Language Evolution and Change Historical and Sociolinguistic Review
Authors: Ph.D Yasir Salih, , Prabowo Agung , Kalfin
Published: September 2024

Language changes and developments, both nationally and internationally, are inevitable due to cultural acculturation and interactions between speakers of different languages. These changes can be internal, affecting the grammar system, or external, influenced by contact with other languages. Internal changes, which occur gradually, involve alterations in phonological systems, phrase order, and case and gender functions. External changes, resulting from interactions driven by economic, political, educational, and technological interests, can occur rapidly, often starting with lexical enrichment and extending to other language elements. This study examines the historical development and changes in two languages from the same family, German and English, to illustrate internal changes. Additionally, it explores the impact of external changes in multilingual societies, emphasizing the role of sociolinguistics in understanding the relationship between language and society. The methodology involves a qualitative approach, literature review, participant observation, and interviews to gather and analyze data descriptively. The study finds that internal language changes are driven by speaker behavior and innovation within communities, while external changes result from language contact and social interactions. These interactions lead to the introduction of loanwords, new morphological elements, phonemes, and speech variations. Examples from Indonesian, German, and English demonstrate how languages evolve due to these influences, creating new dialects and hybrid languages. The research highlights the importance of sociolinguistics in describing social status, improving social mobility through language use, and investigating dialect phenomena. The findings emphasize that language is a dynamic entity, constantly adapting to social, cultural, and technological changes, reflecting the diverse and evolving nature of human communication.
Use of Communication and Information Media in the Implementation of National Development Programs in Indonesia
Authors: Suhaimi Nurnisaa Binti Abdullah , Lianingsih Nestia , Pirdaus Dede Irman
Published: September 2024

The role of communication media in national development is as an agent of renewal or to help introduce social change. The role of information technology in the field of communication is very large, because in the presence of supporting information, effective communication will be created, and with the progress of both fields, development will progress. This study aims to: (1) describe the characteristics of a digital era society that uses communication media, (2) describe the relationship between communication media and national development, and (3) describe the opportunities and challenges that arise in the digital era society, and (4) describe efforts that must be made in the digital era. This research method is descriptive research with a qualitative approach. The researcher was carried out by collecting data in accordance with existing events. Then the data was analyzed by collecting data, reducing data, presenting data and then drawing conclusions or verification. The results of the study showed that national development in Indonesia will be realized well if there is a communication and information media in the form of a social network that is used by the community correctly, ethically and can be accounted for its truth. Development information can reach the wider community through cooperation between the community and the local government, namely by holding counseling in all places where the community is evenly distributed.
Mineralization, geochemical signatures, and provenance of stream sediments on the Jos Plateau, Northcentral Nigeria
Authors: Odewumi Shola
Published: September 2024

This study aimed at determination of mineralization, geochemical signatures and provenance of stream sediments on the Jos Plateau, northcentral Nigeria. Ten (10) stream sediments samples collected were air-dried and subjected to X-Ray Fluorescence analysis. The SiO2 value of 49.79 to 77.03 wt%, Fe2O3 value of 1.30 to 28.84 wt%, Al2O3 value of 5.27 to 18.25 wt%, CaO value of 0.22 to 1.88 wt%, MgO value of 0.12 to 0.92 wt%, K2O value of 0.44 to 2.00 wt% and Na2O value of 0.02 to 0.65 wt%. The low values of CaO (0.22-1.88 wt %) and Na2O (0.02-0.65 wt %) could be associated with the destruction of plagioclase feldspar while low K2O composition (0.44-2.00 wt%) could be associated with the destruction of K-feldspar during weathering. The concentration of MnO (0.06-0.12 wt%) indicates manganite enrichment, the high TiO2 value (0.63-4.25 wt%) shows rutile enrichment while ZrO2 value (0.48-18.48 wt%) indicates zircon mineralization from the underlying lithologies. The high values of pathfinder elements (Y, Zn and Nb) could be attributed to the presence of Older and Younger Granites at the upstream of the study area. Samples 4, 5, 8 and 9 have Thorium (Th) concentrations >15 ppm threshold which point to areas favorable for Th mineralization. Enrichment Factor (EF) ranges from 3.03 to 42.42 indicating moderate, significant, very high enrichment and extremely high enrichment. The Contamination Factor (CF) of 1.27 to 201.03 indicates moderate and very high contamination possibly from geogenic sources. The provenance of stream sediments is associated with felsic and mafic sources
Performance Evaluation of Green Supply Chain Management in Canned Fish (Sardines) Production Unit: A Case of Indonesia
Authors: Suryaningrat Ida Bagus Bagus , Kuswardhani Nita , Darmaningrum Sindy Rosa , Purnomo Bambang Hery , Wibowo Yuli
Published: October 2024

Indonesia's fishing industry, especially in East Java Province, shows great potential but also harms the environment. CV. Pasific Harvest Surabaya (CV. PHB) is a fish canning industry in Banyuwangi Regency, which is currently facing problems such as the supply of raw materials, which continues to decline; the company has not measured and planned the total consumption of energy, fuel, water and the problem of workers who have not received environmental training. Although a waste processing system is in place, the production process still carries the risk of environmental pollution. The researchers collected data through observation, interviews, literature studies, and paired comparison questionnaires. The results of the research reveal that CV. PHB manages three supply chain flows with four supply chain actors. The final performance score is 81.77, with 24 verified KPIs. The KPIs that need performance improvement are packaging time until the product is picked up by the delivery service (D4), time for handling customer complaints (R3), and environmental training for workers (E1).
Diversity Of Physical Grain Quality Traits In Tropical Sorghum Genotypes
Authors: Maphosa Lindani , Maphosa Mcebisi , Ndlovu Elton
Published: October 2024

The current study envisioned to assess the physical traits of sorghum grain for selected sorghum genotypes. Seed for the genotypes was sourced from the Lupane State University Gene Bank and grown during the 2022/23 agricultural season at Lupane State University Farm experimental plots. At maturity, laboratory tests on kernel/grain hardness, 100 kernel weight, bulk density, kernel diameter, colour and determination of presence of tannins through qualitative tests were done for all the 24 sorghum genotypes. Results from analysis of variance demonstrated highly significant differences (P<0.001) on kernel weight, kernel diameter, kernel hardness and grain hardness showing a great diversity of physical traits among all the 22 genotypes and 2 commercial varieties of sorghum. Mean 100 kernel weight was 2.59g, kernel diameter was 3.49mm, bulk density was 1.23g/cm3 and kernel hardness was 28.9%. Visual assessment was done on grain colour and seed was classified under red, cream, white and brown sorghums, and mixed colours. A chi-square test found a significant relationship between grain colour and presence of tannins. Genotypes NPGRC3124, IS9405 showed moderate levels of tannins while IS13996, IS29925, NPGRC1699, NPGRC1156 and NPGRC1478 had high levels. A highly significant strong positive correlation was shown for sorghum genotype between kernel diameter and kernel weight (r=0.81 at p≤0.05). Highly significant positive correlation was also observed between bulk density and kernel weight (r=0.4173 at p≤0.001). Kernel hardness has a strong positive correlation with bulk density (r=0.6242). Quantification of tannins is recommended to prevent negative effects on human and livestock health.
Characterization of Robusta Coffee Powder with Addition of Palm Sugar and Vanilla Powder to Improve The Quality of Robusta Coffee (Coffea canephora Pierre)
Authors: Herliani Canserlita Puteri , Savitri Dyah Ayu , Suud Hasbi Mubarak , Rosyady Muhammad Ghufron
Published: October 2024

Bondowoso Robusta Coffee is a type of Robusta coffee that has a distinctive taste and high quality. The distinctive taste and high quality are obtained from the results of harvest management and post-harvest processing in accordance with Standard Operating Procedures (SOP). This research will be carried out by testing the characteristics of Robusta ground coffee with a mixture of palm sugar and vanilla flavoring to improve the quality of Robusta ground coffee. This was done by knowing the physicochemical and organoleptic properties of the mixed Robusta ground coffee. The aim of this research is to determine the interaction between roasting level and the composition of palm sugar and vanilla powder on the physiochemical and organoleptic properties of 3 in 1 Robusta Coffee. This research uses an experimental plan arranged factorially with the basic pattern of a Completely Randomized Design (CRD) with 4 replications. This design has two factors, the first factor is the roasting level and the second is the mixture composition. The results of this research show (1) The interaction of Roasting Level and Mixture (palm sugar and vanilla powder) has no significant effect on all observed variables such as water content, Brix content, pH value, and powder bulk density. (2) The effect of the main level of roasting has a very significant effect on the observed variables of rainfall density and an insignificant effect on the variables of air content, Brix content and pH value. (3) The effect of the main mixture has a very significant effect on the observed variables of air content, Brix content and powder bulk density and has no significant effect on the variable pH value.
Commentary: Respectful relations between science and Māori knowledge
Authors: Stewart Georgina
Published: September 2024

We are calling for discussions based on respectful relations or ‘mana ōrite’ between science and Māori knowledge. Greater understandings of the history and philosophy of both science and Māori education are necessary in order to understand the call for mana ōrite as ‘time up’ for the invalid denigration of Māori knowledge.
MRAČNITE HODNICI NA ADOLESCENCIJATA
Authors:   University Goce Delčev, Faculty of Philology, Štip, North Macedonia, Denkova Jovanka
Published: September 2024

This scientific article discusses a contemporary adolescent novel, When the Prince is Late (Кога доцни прин- цот) by the Macedonian author Velko Nedelkovski. The novel is significant because it was published in 1999, at a time when Macedonian literature for adolescents began to treat some previously taboo topics more freely and openly, such as prostitution among young people, vices, murders, etc. In the article, we analyse the adolescent period and all the phenomena related to it in Nedelkovski’s novel and how the protagonists face them. All of this can help young adolescents identify with the protagonists and find the solution to their problems in books like this one.
KONCEPT NAIVNE PESME – LICA MODERNOSTI DUŠANA RADOVIĆA I MILOVANA DANOJLIĆA
Authors:   College of Vocational Studies for Teacher Education in Kikinda, Serbia, Grujić Tamara
Published: September 2024

The aim of the paper is to trace the historical development of the perception of children and childhood, as a relevant age important for human development, in contemporary poetry for children, primarily illuminating the child-adult relationship. An overview of the different stages in the understanding of this relationship and the nature of children’s literature is given, and a special emphasis is placed on the forms of modernity in the poetic texts of Dušan Radović and Milovan Danojlić and their concept of a naive poem.
Influence of single- and multi-stage austempering treatments on microstructure and mechanical properties of AISI 4140 steel
Authors:   Faculty of Engineering, University of Lampung, Bandar Lampung, Indonesia, Badaruddin Mohammad , Diarko Purnomo ,   oliteknik Tunas Garuda, Panaragan Jaya, Indonesia, Asmi Dwi ,   aculty of Mathematics and Natural Sciences, University of Lampung, Bandar Lampung, Indonesia, Wardono Herry ,   Faculty of Engineering, University of Lampung, Bandar Lampung, Indonesia
Published: October 2024

The present study examined the impact of single- and multi-stage austempering treatments on microstructural changes and the mechanical properties of AISI 4140 steel. All specimens underwent an annealing treatment before undergoing austempering treatments. The single-stage austempering treatment employed three distinct temperatures: 312, 362 and 412 °C. The multi-austempering employed three steps of austempering treatment, commencing at 312 °C and progressing in increments of 50 °C for an hour each, up to a maximum temperature of 412 °C. The mechanical properties were determined using hardness, impact and tensile testing. Furthermore, the microstructure alterations and phases identified in heat-treated specimens were characterised using scanning electron microscopy (SEM), electron dispersive spectroscopy (EDS) and X-ray diffraction (XRD) patterns. The mechanical properties of AISI 4140 steel subjected to single-stage and multi-stage austempering treatments exhibited a considerable enhancement compared to the annealed steel. The microstructure of annealed steel is predominantly coarse ferrite and pearlite. The austempering treatment forms a bainitic structure, retained austenite structures and a small number of martensitic structures within the steel's microstructure. In other words, the mechanical properties of AISI 4140 steel concerning austempering treatments are correlated with the microstructural changes resulting from different austempering temperatures.
Pengaruh Kebijakan Dividen, Kepemilikan Manajerial, Kepemilikan Institusional terhadap Nilai Perusahaan Sektor Perbankan yang Terdaftar di Bursa Efek Indonesia
Authors: Kurniawati Puput , Kusumastuti Anggit Dyah , Mutiasari Annisa Indah
Published: October 2024

This study aims to determine the influence of dividend policies, managerial ownership, and institutional ownership, both partially and simultaneously, on the value of banking sector companies listed on the IDX for the period 2018-2022. Sampling in this study uses a purposive sampling technique. So that research data was obtained as many as 140 data samples. The type of research used is quantitative and analytical observational research design with a cross-sectional approach, which is a study with the aim of analyzing the dynamics of inter-effects and effects, by collecting time-lapse data at a certain time (point time approach). The analysis methods used are multiple linear regression analysis, F test, t test, and determination coefficient (R2). The results of the partial study show that dividend policy has a positive and significant effect on the value of companies in the banking sector in Indonesia, in 2018-2022. Meanwhile, management ownership and institutional ownership have no effect on the value of banking sector companies in Indonesia in 2018-2022. Simultaneously, dividend policies, institutional ownership, and management ownership have a significant effect on the value of companies in the banking sector in Indonesia in 2018-2022. The determination coefficient shows the magnitude of the variation in the dependent variable due to the variation of the independent variable of 11.3% The change in the variation in the company's value is due to the influence of dividend policy, institutional ownership, and management ownership. While the remaining 88.7% was influenced by other variables outside this study. Such as fiscal, monetary, or national political stability in its influence on the rise and fall of the company's value.
Thalamic Nuclei Morphometry and Handedness: Assessing Grey Matter Volume Differences in Left- and Right-Dominant Individuals
Authors:   Department of Anatomy, Faculty of Basic Medical Science, University of Port Harcourt, Port Harcourt, Nigeria, Wogu Eberechi , Filima Patrick ,   Department of Anatomy, Faculty of Basic Medical Science, University of Port Harcourt, Port Harcourt, Nigeria
Published: September 2024

The connection between thalamic structure and handedness has important implications for understanding the neural basis of lateralization, and this may shed light on the underlying mechanisms of motor control and cognitive processes. This study investigated the relationship between thalamic nuclei morphometry and handedness, aiming to elucidate the neuroanatomical basis of manual preference. Utilising neuroimaging data from a test-retest functional magnetic resonance imaging (MRI) dataset, T1-weighted volumes were acquired and processed using automated segmentation methods. Thalamic nuclei were parcellated into 25 regions, and grey matter volumes were analysed using the Freesurfer software tool. Statistical comparisons of the interhemispheric volume of the four thalamic nuclei between left- and right-dominant individuals were conducted using independent sample t-tests. This study identified interhemispheric differences in specific thalamic nuclei (the ventral anterior thalamic nucleus and the ventral posterolateral thalamic nuclei) in the left- and right-dominant individuals, suggesting structural variability within the thalamus associated with handedness. The findings underscore the importance of considering subcortical structures in understanding the neural basis of manual preference and highlight avenues for further research in thalamic morphology and its relationship with handedness.
Forecasting Indonesian Stock Index Using ARMA-GARCH Model
Authors: Susanti Dwi , Labitta Kirana Fara , Sukono Sukono
Published: September 2024

The stock market is an institution that provides a facility for buying and selling stocks. Covid-19 is an issue that has affected the stock markets of many countries, including Indonesia. Due to the pandemic, the condition of stocks before and during Covid-19 is certainly different. Stocks can be measured using stock indices. To predict future stock conditions, it is necessary to forecast the stock index. Therefore, this research aims to forecast the Indonesian stock index before and during Covid-19 using the ARMA-GARCH time series model. The results show that the best forecasting model for before Covid-19 data is ARMA(0,2)-GARCH(1,0), and for the data during Covid-19, it is ARMA(3,3)-GARCH(3,3). These findings can help investors make better investment decisions in the future.
Calculation of Motor Vehicle Insurance Premiums Through Evaluation of Claim Frequency and Amount Data
Authors: Bagariang Elizabeth Irene , Raharjanti Amalia
Published: September 2024

Insurance, as a risk control strategy by transferring the burden of risk from one party to another, consists of two main forms: life insurance, which covers financial losses from the risk of death of the policyholder, and general insurance, which involves the transfer of risk against property losses. Motor vehicle insurance has become a common product reflecting the high value and benefits of motor vehicles, which has resulted in an increase in vehicle ownership. Although the increase in the number of vehicles contributes to the increase in road accidents, many owners who suffer losses do not receive the compensation they deserve. In this context, the premium becomes a key factor, where the policyholder pays a certain amount of money to get protection. This research aims to apply risk premium calculation based on claim frequency and claim size data, as conducted by Ozgurel in 2005, especially for each vehicle category and region in XYZ insurance company. The main problem is to optimize the premium calculation to reflect the actual risk, providing a more accurate understanding of the influence of vehicle and regional characteristics in determining a fair and appropriate premium.
Prediction of Motor Vehicle Insurance Claims Using ARIMA-GARCH Models
Authors: Susanti Dwi , Maraya Nisrina Salsabila , Sukono Sukono , Saputra Jumadil
Published: September 2024

Motorized vehicles are one of the means of transportation used by Indonesian people. As of 2021, the Central Statistics Agency (CSA) recorded the growth of motorized vehicles in Indonesia reaching 141,992,573 vehicles. Lack of control over the number of motorized vehicles results in losses for various parties, such as accidents, damage and other unwanted losses. The size of insurance claims has the potential to fluctuate, because it is influenced by several factors, such as policy changes, market conditions and economic conditions. This research aims to predict the size of motor vehicle insurance claims using the ARIMA-GARCH model which is used to predict the size of vehicle insurance claims by dealing with non-stationarity and heteroscedasticity in time series data. Based on research, the best model obtained is the ARIMA (2,1,3) - GARCH (1,0) model which produces seven significant parameters. Meanwhile, based on the MAPE value, it shows that the ARIMA (2,1,3)-GARCH (1,0) model is quite accurate. The results of this research can be taken into consideration in predicting the size of insurance claims in the future.
Actuarial Calculation of Pension Funds Using Attained Age Normal (AAN) at PT Taspen Cirebon Branch Office: For Normal Pension
Authors: Amalia Hana Safrina , Subartini Betty , Sukono Sukono
Published: September 2024

The pension program for Civil Servants (PNS) in Indonesia is managed by PT Taspen (Persero), which is responsible for ensuring the welfare of employees after retirement. One of the important components in the management of this pension fund is the actuarial calculation, which serves to determine the amount of normal contributions that must be paid by participants and the actuarial obligations that are the company's dependents. This calculation uses the right actuarial method to maintain the financial stability of the company and ensure that pension benefits can be optimally provided to participants. This study focuses on the use of the Attained Age Normal (AAN) method in calculating pension funds for pension program participants at PT Taspen Cirebon Branch Office. In addition, this study also compares the results of the AAN method calculation with another method, namely Projected Unit Credit (PUC), to see the advantages and disadvantages of each method. The AAN method calculates liabilities based on the current age of the participant, thus providing more conservative results and tending to be stable in the long term. The results showed that the AAN method produced a higher total normal contribution compared to the PUC method. Normal contributions calculated by the AAN method for participants of the PT Taspen pension program at the Cirebon Branch Office showed an increase of 2,095,355.33 rupiah at the age of 32 years. On the other hand, the PUC method produces a lower normal contribution, which is 827,843.62 rupiah for the same age. In terms of actuarial obligations, the AAN method also shows a more significant increase than PUC. These results show that the AAN method is more stable in the calculation of actuarial liabilities, although it requires larger contributions. Thus, although the Attained Age Normal (AAN) method results in higher normal contributions, it provides better assurance in maintaining the company's financial balance in the long term. This study provides a recommendation that PT Taspen can consider the AAN method as a more conservative alternative in pension fund management.
FACTORS INFLUENCING THE STUDY OF GERMAN AS A SECOND FOREIGN LANGUAGE AT A TECHNICAL UNIVERSITY
Authors: GRIDNEVA E.A. , LOPATKINA I.A.
Published: September 2024

In the presented article, the author tried to most fully analyze and describe the main factors influencing the study of German as a second foreign language at a technical university. The research is based on more than twenty years of experience in the relevant field. An analysis of learning behavior and the learning process is carried out as a fundamental condition for optimal learning. By analyzing the factors influencing the learning process, it is possible to identify potential errors and adapt and optimize the learning process accordingly. The work briefly characterizes cognitive, social and affective factors. Particular attention is paid to the factor of motivation. The main approaches to increasing student motivation, especially during distance learning, are described. The author evaluates such concepts that are often found in the literature as “potential for language acquisition”, “effective learning strategies”, “learning style”, “support strategies”, “type of perception”. There are visual, auditory and motor or tactile learning styles that can be attributed to certain types of learners. Support strategies include strategies that influence willingness to exert effort, motivation, attention, and coping with failure. Within these strategies, a distinction can be made between external and internal resource management strategies.
GRAPHIC ORGANIZER AS AN ELEMENT OF THE FOREIGN LANGUAGE TEACHING PROCESS
Authors: KOPYLOVA E.V.
Published: September 2024

Methods of visual representation influence the perception and understanding of information. The article examines the role of visual representation in the transmission of information and the reflecting possibility of meta-subject connections in the process of a foreign language teaching. The study emphasizes the importance of an interdisciplinary approach as a main trend in the development of education, identifying opportunities for interaction between various fields of knowledge in the learning process. The interdisciplinarity is the integration of knowledge and methods from various disciplines to solve complex problems. The author analyzes the model of information transmission, where the transformation of received information is converted into a thoughtform and subsequently into knowledge. The acceptance of new knowledge becomes possible only if the goals of the source and receiver of information have one common characteristic. The article presents a brief description of a foreign language class for students of a non-linguistic university. The author’s technology of visual representation is described, creation of a visualized thoughtform in the context of an interdisciplinary approach.
THE PROBLEM OF FORMING THE MORAL DEVELOPMENT OF YOUNGER SCHOOLCHILDREN IN THE PROCESS OF MASTERING FOREIGN LANGUAGE DIALOGIC SPEECH
Authors: FILATOVA L.N.
Published: September 2024

This article reveals the problem of forming the moral development of younger schoolchildren in the process of mastering foreign-language dialogic speech. A foreign language has a unique pedagogical potential for the spiritual and moral education of the younger generation. The authors of the study analyze the modern educational process, the peculiarities of the formation of morality in children at primary school age and the relationship between moral development and mastery of foreign language speech. The importance of the axiological aspect of primary foreign language education is emphasized, since it includes a set of moral values, personal qualities, and also forms the moral culture of a younger student. The article also defines the importance and significance of the development of dialogical skills of younger schoolchildren in English lessons. This article may be useful for English teachers in elementary school.
The Role of Social Media in Promoting Sustainable Brands: Influencing Consumer Perceptions and Behavior Towards Sustainable Products
Authors: Sipos Dario
Published: September 2024

Sustainability has become a primary concern for consumers and businesses, and the need for brands to communicate their environmental initiatives effectively has significantly increased. Social media platforms have become powerful tools for shaping consumer perceptions and behaviors toward sustainable products. This study investigates how social media influences consumer trust, engagement, and purchase intentions related to sustainable brands. The study uses a mixed-method approach that includes qualitative meta-analysis, case studies, and a quantitative online survey. The study examines how transparency, influencer marketing, and consumer engagement on social media impact consumer attitudes and behaviors. Results indicate significant correlations between social media transparency and purchase intentions. According to the study results, influencer credibility is crucial in driving engagement with sustainable products. Case studies of brands such as Patagonia, IKEA, Unilever, and Tesla demonstrate how real-world companies use social media to promote sustainability, which further confirms the relevance of the study's findings.
Role of Climate Change in Altering Bird Migration Patterns in Vietnam
Authors: Thị Nguyen
Published: September 2024

Purpose: The aim of the study was to analyze the role of climate change in altering bird migration patterns in Vietnam.
Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries.
Findings: Climate change has significantly altered bird migration patterns in Vietnam, primarily due to shifting temperatures, altered precipitation patterns, and habitat loss. Warmer temperatures have caused many migratory birds to adjust their timing, either arriving earlier or delaying their departure, which often leads to mismatches with food availability and breeding conditions. Additionally, changes in rainfall patterns have impacted the availability of critical stopover sites, such as wetlands, which are essential for resting and refueling during migration. Habitat loss due to climate change and human activities has further compounded these challenges, threatening the survival of various bird species that rely on consistent migratory routes.
Unique Contribution to Theory, Practice and Policy: Ecological niche theory, phenological mismatch theory & climate envelope theory may be used to anchor future studies on role of climate change in altering bird migration patterns in Vietnam. Conservation practices should focus on adaptive habitat management that accounts for the changing migration patterns of birds due to climate change. Policymakers should prioritize the development of climate-responsive conservation policies that explicitly address the impacts of climate change on migratory bird species.
Оценка трансформации химической промышленности на основе институционального подхода и критериев устойчивого развития
Authors: Казакова Н.А. , Когденко В.Г.
Published: September 2024

Целью исследования является обоснование системы индикаторов для мониторинга и оценки процессов трансформации химической промышленности. При этом используется разработанный авторами институциональный подход к оценке трансформации на основе группировки компаний по критериям максимального вклада в прирост выручки и в чистые инвестиции, а также по типам бизнес-моделей поведения. Индикаторы трансформации ориентированы на достижение целей экономического роста и технологического суверенитета страны.
Эволюция стратегического целеполагания в 2008-2023 гг. и требования к макроэкономической политике в текущих условиях функционирования российской экономики
Authors: Гусев М.С. , Клепач А.Н. , Широв А.А.
Published: September 2024

В статье анализируется эволюция системы стратегического целеполагания в современной России. Дается анализ механизмов определения и достижения целей развития экономики и общества. Рассматриваются критерии успешности реализации долгосрочной стратегии развития. Констатируется, что, несмотря на череду шоков экономической и внеэкономической природы, при формировании целей долгосрочного развития сохраняется преемственность с идеями Концепции долгосрочного развития 2008 г. (КДР 2020). Анализируются достигнутые за последние 15 лет результаты экономического развития. Оцениваются изменения в механизмах и условиях формирования экономической динамики, произошедшие после 2022 г., и их влияние на инструменты достижения долгосрочных целей развития экономики. Подчеркивается необходимость долгосрочного целеполагания с точки зрения формирования эффективной экономической политики.
Развитие методологии прогнозирования воспроизводства запасов природных ресурсов с использованием межотраслевого подхода
Authors: Баранов А.О. , Слепенкова Ю.М.
Published: September 2024

Природные ресурсы являются одним из важных факторов экономического роста. При принятии экономических решений следует учитывать особенности их воспроизводства, полноценно включать данный фактор в экономические модели. Для этого необходимо проработать методологию оценки и прогнозирования воспроизводства запасов природных ресурсов. В статье проанализирован опыт построения различных макроэкономических, отраслевых эколого-экономических моделей, учитывающих природные ресурсы. Предложен подход к синтезу методов геолого-экономической оценки природных ресурсов, в частности углеводородов, с методологией динамического межотраслевого баланса. Такой подход позволяет прогнозировать развитие экономики России с учетом взаимосвязи воспроизводства запасов природных ресурсов в части углеводородного сырья с воспроизводством валового выпуска на макро- и межотраслевом уровнях.
Математическая экономика в эпоху социализма и переход к рынку (часть I)
Authors: Полтерович В.М.
Published: September 2024

Статья посвящена исследованию истории советской экономико-математической школы, ее борьбе с официальной идеологией и попыткам влияния на выбор стратегий социально-экономического развития. В период НЭПА в СССР работала плеяда блестящих экономистов, владевших передовыми статистическими и экономико-математическими методами и получивших ряд фундаментальных результатов, которые при благоприятном стечении обстоятельств могли бы стать основой для включения России в мировой поток экономических исследований. Однако лидеры формировавшегося направления выступали за рациональное сочетание плана и рынка, что противоречило решению власти свернуть НЭП. Власть требовала обоснования ее политики, независимые исследования рассматривались ею как враждебные, и школа была разгромлена. Ее возрождение началось в конце 50-х годов после разоблачения культа личности и происходило в ожесточенной борьбе с начетническим марксизмом. В работе показано, что в этой борьбе проявилось несовершенство мировой экономико-математической теории того времени, ориентированной на изучение рыночной конкуренции и не рассматривавшей характерные для плановой экономики механизмы рационирования, очередей и черного рынка.
On Energy of Prime Ideal Graph of a Commutative Ring Associated with Transmission-Based Matrices
Authors: Romdhini, M. U. , Nawawi, A. , Husain, S. K. S. , Al-Sharqi, F. , Purnamasari, N. A.
Published: October 2024

This research explores the energy of the prime ideal graph of a commutative ring. The study demonstrates the energy formula of the graph associated with transmission-based matrices. Through research, the findings highlight the distance, Wiener-Hosoya, and distance signless Laplacian matrices. It should be noted that the distance and Wiener-Hosoya energies are always twice their spectral radius, meanwhile, it does not hold for distance signless Laplacian energy.
Role of Higher-Order Scattering Coefficient and Residual Nonlinearities on Instability Criteria in Three-Body Bose-Einstein Condensates
Authors: Mohanraj P. , Sivakumar R. , Kaliyamurthy Jayaprakash , Kamalakar V. , Gajendiran J.
Published: September 2024

We examine the instability characteristics in a three-body condensate and the effect of higher-order nonlinear effects caused by shape-dependent imprisonment and higher-order scattering coefficients such as S-wave scattering length and effective range for collisions. Using the linear stability technique, we study the spreading relations and gain profile of the adapted Gross Pitaevski equation with higher-order scattering coefficients and enduring nonlinearity. The role of higher-order interactions S-wave scattering length, residual nonlinearity, and effective range for collisions over the modulational instability in immiscible and miscible three-body Bose-Einstein condensates has been discussed in detail. MI can be excited in miscible condensates and changed in immiscible condensates because of residual nonlinearity, without taking into account higher-order nonlinearity and three-body condensates. However, the results of this work demonstrate that the influence of higher-order residual nonlinearity can cause the MI to change in both immiscible and immiscible condensates. The discovered MI spectrum reveals a new soliton production regime in three-body condensates. The results exhibit that higher-order scattering coefficient and remaining nonlinearity interplay can successfully switch the instability gain profile in miscible and immiscible condensates. This makes it possible to regulate the dynamics by varying the MI in a ternary combination of Bose-Einstein condensates.
 
Received: 19 December 2023 | Revised: 13 June 2024 | Accepted: 23 September 2024
 
Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.
 
Data Availability Statement
Data are available from the corresponding author upon reasonable request.
 
Author Contribution Statement
P. Mohanraj: Conceptualization, Methodology, Software, Writing - original draft. R. Sivakumar: Validation, Formal analysis, Investigation, Supervision. Jayaprakash Kaliyamurthy: Writing - review & editing, Visualization. V. Kamalakar: Writing - review & editing, Visualization. J. Gajendiran: Writing - review & editing, Visualization.