bluuebunny/crossref_metadata_2025 huggingface dataset:
PENERAPAN METODE RANDOM FOREST DALAM MENDETEKSI BERITA HOAX
Authors:   Universitas Methodist Indonesia, Tambunan Tio , Yohanna Margaretha , Silalahi Arina Prima
Published: October 2023

Hoax is information that is not true. The Ministry of Communication and Informatics (Kominfo) found that there was 2,099 hoax news that was spread thousands of times via social media. This generally impacts the community so it can lead to a crisis of confidence in the government. This arises because many message recipients have different literacy levels, which will affect how people analyze the information conveyed. This research uses the Random Forest method, which is used to classify large amounts of data to detect hoax news. The research results show that the Random Forest method is proven to be able to classify hoax news based on data that has been weighted and entered into the system. From the results of the study using 200 data sets, which were divided by 80% in the form of training data and 20% of testing data, the classification results obtained from the testing data were in the form of 28 positive sentiments and 23 negative sentiments with an accuracy rate of 98%.
VISUAL ANALYSIS OF LOCAL EARTHQUAKE IN NORTH TAPANULI BASED ON DATA SCIENCE
Authors:   Badan Meteorologi, Klimatologi dan Geofisika, Sinambela Marzuki , Darnila Eva ,   Universitas Malikussaleh
Published: October 2023

Earthquakes are natural phenomena that occur when the Earth's tectonic plates move and release energy. Big Data's emergent epistemological and research paradigms, as well as data science, an increasingly integrated field of data research, are opening up new opportunities. Visualizing earthquake data is all about understanding earthquake characteristics such as size, location and depth. The result show that September was the quietest month in terms of earthquakes, and in this graph we can see the number of earthquakes for each month in 2022. The month of October is the one that has the highest number of earthquakes. We can see the average depth and magnitude of each year on the bubble chart. In addition, the size and color of the bubbles indicate the number of earthquakes that month. In general, most of the earthquakes occurred in the shallow earthquake range and the 1.8-3.85 magnitude range.
PERANCANGAN VIDEO ANIMASI PEMBELAJARAN LITERASI DI SD NEGERI 101944 DELI MUDA
Authors:   Universitas Methodist Indonesia, Saragih Yudha Darma , Harianja Eva Julia G. , Lumbantoruan Gortap
Published: October 2023

Animated Literacy Learning is an animation that provides learning about literacy, specifically focusing on reading materials in the form of original data messages to its users. The reading literacy material includes learning letter recognition, reading skills, and reading exercises. This research aims to develop an application that can be used to enhance students' skills, particularly in reading. Additionally, the learning process with this application is expected to be more enjoyable and can further motivate users to learn, as it incorporates images, sounds, and animations. The objective of this learning application is to train and enhance students' literacy skills, as it also includes exercises to assess the students' proficiency level in the given teaching materials. The research methodology employed in this study includes literature review, data collection, needs analysis, system design, implementation, and evaluation. The final outcome of this research is an animated literacy learning video specifically designed for students at SD Negeri 101944 Deli Muda. It is anticipated that this video will increase students' interest and literacy skills while providing an enjoyable and interactive learning experience.
PERANCANGAN SISTEM INFORMASI NILAI PADA SEKOLAH MENENGAH ATAS FREE METHODIST BERBASIS WEBSITE
Authors:   Universitas Methodist Indonesia, Hutasoit Anggi Deopri , Simamora Roni J. , Purba Eviyanti Novita
Published: October 2023

The Design and Information System of Report Card Grades at SMA Free Methodist is a research project aimed at developing an efficient and reliable information system for designing report card grades at SMA Free Methodist School. This information system is designed to automate the process of designing report card grades, which was previously done manually, thus saving time and effort for teachers in preparing and issuing report card grades, instead of using Microsoft Excel. The research methods employed in this study include literature review, data collection, needs analysis, system design, implementation, and evaluation. The research also involves the participation of teachers as respondents to evaluate the system's performance and provide feedback regarding desired features. The results of this research project yield a report card grade design information system that can assist teachers in efficiently and accurately preparing and issuing report card grades. The system incorporates features such as student data management, attendance tracking, extracurricular activities, class teacher notes, student self-descriptions, and report card printing. Additionally, the system is equipped with security features that ensure only authorized users (teachers) can access and modify the data.
FACILE SYNTHESIS OF FLUORESCENT CARBON NANODOTS FROM SOURSOP PEEL AS A CARBON SOURCE FOR FERRIC METAL ION SENSOR
Authors:   Physics Department, Faculty of Sciences and Engineering, University of Nusa Cendana,Jl. Adisucipto Penfui, Kupang, East Nusa Tenggara, Indonesia, Ngara Zakarias Seba , Elin Avelina ,   Physics Department, Faculty of Sciences and Engineering, University of Nusa Cendana,Jl. Adisucipto Penfui, Kupang, East Nusa Tenggara, Indonesia, Ngana Frederika Rambu ,   Physics Department, Faculty of Sciences and Engineering, University of Nusa Cendana,Jl. Adisucipto Penfui, Kupang, East Nusa Tenggara, Indonesia, Bukit Minsyharil ,   Physics Department, Faculty of Sciences and Engineering, University of Nusa Cendana,Jl. Adisucipto Penfui, Kupang, East Nusa Tenggara, Indonesia, Lerrick Reinner Ishaq ,   Department, Faculty of Sciences and Engineering, University of Nusa Cendana, Jl. Adisucipto Penfui, Kupang, East Nusa Tenggara, Indonesia
Published: October 2023

In this work, we present a simple fabrication process of carbon nanodots (C-dots) from soursop peel as a carbon source. The aims of this research are to analyze the optical properties of the C-dots and to synthesize the C-dots as sensors for detecttion of ferric (Fe 3+ ) ions. The optical properties of the prepared C-dots were characterized by spectrophotometry of UV−Vis, photoluminescence, and FTIR. Whereas the synthesis process was conducted by blending with FeCl3H2O. The prepared C-dots emitted blue emission color. They had an absorption peak at 278 nm corresponding to the characteristic of π →π* transition. When excited by an excitation wavelength of 340 nm, the PL peak at 430 nm corresponded to their blue emission color. Thus, the appearance of the O-H and C=O bonds in the FTIR spectrum demonstrated that the surface of C-dots was coated by hydroxyl and carbonyl groups, respectively. Interaction between C–dots and Fe 3+ ion, investigated over quenching of the PL intensity of the C-dots after each addition of Fe 3+ ion, demonstrated that the C-dots can be applied as a sensor for Fe 3+ ion detection. The value of the limit of detection and limit of quantification from Fe 3+ ion were determined to be 0.26 mM, These research results could, therefore, pave a large opportunity to explore C-dots from soursop peel for detection of Fe 3+ ion in biosensing, in vivo bioimaging, biomedicine, light-emitting diodes, and so on.
Work-Family Conflict among Police Personnel’s Job Satisfaction in Special Region of Yogyakarta with Gender as a Moderating Variable (Study in Police Administrative Unit at the County Level)
Authors:   University of National Development ", Surya Yeni Eka ,   Veteran",   Yogyakarta
Published: October 2023

Research has shown that both men and women experience work-family conflict, but the nature of the conflict differs based on gender. Women often face conflicting demands between their work and family roles, which can lead to role overload and stress. Men, on the other hand, may experience conflict when their work responsibilities interfere with their family responsibilities, but they may also experience pressure to prioritize work over family due to traditional gender norms and expectations. It is important to recognize and address these gender differences in work-family conflict in order to promote greater work-life balance and job satisfaction for all individuals. This study aims to examine and analyze the effect of work-family conflict among police personnel’s job satisfaction in Special Region of Yogyakarta, especially at police administrative unit at county level. Moreover, this study focuses on exploring the moderating effect of gender on relationship of work-family conflict with job satisfaction. This quantitative study designed to test the hypothesis. The data for the present study were primary cross-sectional data collected from total of 193 police personnel in Yogyakarta. The result of the study show that work family-conflict have a significant negative effect on job satisfaction. Moreover, gender has no impact significantly on the relationship between work-family conflict with job satisfaction.
Dakwah Communication Student in the Community of Lubuk Kepayang Village, West Merapi, Lahat District
Authors:   UIN Raden Fatah Palembang, Ningsih Chairunnisah Putri Ayu , Sopiyan Wawan ,   UIN Raden Fatah Palembang, Kamsi Nurlila ,   STAI Bumi Silampari Lubuklinggau
Published: October 2023

This research aims to explain the process of implementing da'wah communication by Raden Fatah Palembang State University (UIN) students to the people of Lubuk Kepayang village, West Merapi sub-district, Lahat regency. Research was carried out on Real Work Lecture (Kukerta/KKN) students who had previously been given in-depth training on the concept of da'wah communication in the Lubuk Kepayang village community. In this research, researchers used descriptive qualitative methods, namely creating narratives and describing phenomena that occurred during the research. Researchers found that the concept of da'wah communication can be applied in everyday life in society. Students can maximize their role as agents of social change by providing them with religious knowledge (da'wah material) before entering society. The results of the research show that the da'wah communication implemented by students in a disciplined manner received a positive response from the community. Da'wah messages can be happily received by people in various circles.
Discipline as a Tool for Children's Personality Formation
Authors:   Department of Islamic Religion Education, Univeritas Muhammadiyah Sumatera Utara, , Amiruddin
Published: October 2023

In the implementation of education, there are still educators (parents, teachers and society) who are less aware that discipline can influence the formation of a child's personality. Mistakes and inaccuracies in providing discipline to students can interfere with the formation of a good personality. Because the formation of personality during childhood determines a person's mental attitude and behavior after adulthood and is the basis for assessing their actions. It must be remembered that the child's soul at various stages of development is different from the soul of an adult. Growth and development are animated by nature or basic forces from within and influenced by factors from outside. From a psychopedagogical perspective, discipline is very important and even mandatory for a child's growth. Children's growth and development is not only physiological, but also mental and social. Complete and healthy self-development physically, intellectually, emotionally, socially and spiritually, is a reflection of the quality of discipline experienced and carried out by children from the time they are in the womb until they are born, grow and develop into adults. In designing discipline, it can take the form of prohibitions and orders. which leads to positive discipline. The role of parents, teachers and society is very influential in the formation of children's discipline so that they give birth to the individuals mandated by the GBHN.
Primary Grade Students' Experiences about Lithuanian Language Lessons on the "Minecraft" Platform
Authors:   Institute of Educational Sciences, Faculty of Philosophy, Vilnius University, Lithuania, Šimkienė Agnė , Mocartienė Jūratė ,   Institute of Educational Sciences, Faculty of Philosophy, Vilnius University, Lithuania, Raubaitė Gabija ,   Institute of Educational Sciences, Faculty of Philosophy, Vilnius University, Lithuania
Published: October 2023

Based on the experience of Lithuania and foreign researchers and practitioners, the article analyses theoretically the advantages of using Minecraft digital tool in the educational process and highlights the positive aspects of Minecraft lessons. The aim of the study: to determine the factors determining the withdrawal from studies and their relationship with the students' attitude towards studies. Research methods: a qualitative method (student reflections) was used to investigate students' attitudes towards Minecraft lithuanian language lessons. The content analysis method was used to identify students' experiences in terms of the development of general and subject competences in virtual Minecraft lithuanian language lessons. The results of the study will have practical significance in predicting the possibilities of applying Minecraft in the educational process.
Unpacking Teachers’ Roles in the implementation of New School Curriculum
Authors:   Directorate of Education, Arts and Culture: Omusati Region, Namibia, Katshuna Hilma Magano , Shikalepo Elock Emvula ,   The International University of Management, Namibia
Published: October 2023

Teachers play a vital role in the implementation of educational policies and inventions. Without a clear understanding of any programme that teachers have to implement, teachers may not deliver expected outcome. The purpose of this study was to examine the roles of teachers in the implementation of the school curriculum in Namibian schools. The study used a qualitative research methodology, which employed a case study design. Semi structured interview and open-ended questionnaire were used to obtain data from the participants and respondents. The sample was made up of teachers and schools principals who were purposively sampled because of their typicality to the subject of research. The collected data was analysed using thematic analysis method. Key findings reveal that teachers have key roles to play in facilitating the implementation of the new school curriculum. Teachers have a fundamental role to ensure quality implementation of the curriculum. Teachers play an important operational duty of implementing curriculum in the class, and without teachers’ concerted efforts, the quality of curriculum implementation will be compromised. Teachers should also serve as effective collaborators during curriculum implementations. Teachers alone in their own classrooms could hardly implement curriculum effectively, requiring them to collaborate with each other’s on how best they can implement the curriculum collectively. As teachers are key implementers, they should be actively involved in evaluating and assessing learning outcomes of the new curriculum, in order to inform continuous training for improved quality of learning outcomes. Teachers should be cognisant of the key roles that they have to play in ensuring an effective implementation of the new curriculum.
The Role of Influencers in Online Second-Hand Clothing Shopping: The Case of Dolap Application in Türkiye
Authors:   Faculty of Economics and Administrative Sciences, Department of Business Administration, Tekirdağ Namık Kemal University, Önem Şermin , Selim Selvi Murat ,   Faculty of Economics and Administrative Sciences, Department of Business Administration, Tekirdağ Namık Kemal University
Published: October 2023

The main purpose of this study was to explore the effects of influencers on consumers in the Dolap application in Türkiye, an online second-hand clothing shopping platform. In this context, a semi-structured interview form was used with 20 people who use the Dolap application. Interviews were conducted face-to-face and over the phone. It has been revealed that the influence of influencers on the purchase of second-hand clothing by consumers using the application is low, but the brands used by the influencer when making a purchase decision can affect the purchase decision. The most important basic criterion for purchasing clothing is economic benefit. The most common problem is payments. Buyers are happy to buy cheaper products in the market and sellers are happy to earn income and profit. In this study, the shipping process and the mismatch between the product's image and the product itself emerged as the main sources of concern. According to the results, influencers can have an impact on consumers in terms of purchasing branded products at affordable prices, following fashion, and partially creating environmental awareness. It can be stated that the second-hand clothing market, even in the online environment, paves the way for consumers to develop a purchasing behaviour pattern specific to their own identities and lifestyles, is preferred for reasons such as obtaining economic value (financial savings) due to the opportunity to find quality and branded products at a more affordable price, providing functional benefits arising from the use of the product.
Efeito do milho transgênico de gene duplo na capacidade reprodutiva de machos resistentes e suscetíveis de Spodoptera frugiperda (Lepidoptera: Noctuidae)
Authors:   , Cruz Ana Cristina Rodrigues da
Published: October 2023

Spodoptera frugiperda, lagarta do cartucho, é a principal praga que ataca a cultura do milho e a tecnologia Bt (Bacillus thuringiensis) é a principal ferramenta usada para controle desses insetos. Até então sabe-se que S. frugiperda resistentes à toxina Bt apresentam custos no desenvolvimento, na fertilidade e na fecundidade, porém não se sabe como esse custo afeta diretamente parâmetros reprodutivos de machos, como os testículos e espermatozoides. Os machos de Spodoptera frugiperda possuem os testículos fusionados e produzem dois tipos diferentes de espermatozoides, eupirenes (nucleados) e apirenes (anucleados). Portanto, nosso trabalho teve como objetivo avaliar as possíveis alterações que o custo de aptidão podem ocasionar a produção de espermatozoides eupirenes de S. frugiperda resistentes e suscetíveis, através de uma avaliação histofisiológica e aferição do tempo de cópula. Para avaliar a histofisiologia (espermatozoides eupirenes e apirenes), foram feitas lâminas histológicas do testículo de indivíduos suscetíveis e resistentes coradas com DAPI. As imagens obtidas dos feixes e a montagem total dos testículos foram analisadas através do software Adobe Photoshop 2022. Para avaliar o tempo de cópula, utilizamos um cronômetro. Nossos resultados mostraram que o número de feixes eupirenes foi maior no testículo dos machos suscetíveis comparado com os resistentes. Já o tempo de cópula foi maior em insetos resistentes. Nossos resultados podem fornecer informações adicionais sobre a histofisiologia testicular de S. frugiperda. E além disso, mostra que existe um possível custo de aptidão relacionado a produção de espermatozóides eupirenes em insetos resistentes, que deve ser investigado. Palavras-chave: Bacillus Eupirenes. Testículos. thuringiensis. Custo de aptidão. Espermatozóides.
Floristic diversity of the rocky habitats and plains of the coastal area of Abyan Governorate, Yemen
Authors: Al-Meisari Mahmood Ahmed , Hussein Mohammed Abdullah , Al–Gifri Abdul Nasser
Published: October 2023

The present study deals with the floristic analysis of the Plain and coastal area of Abyan governorate. The present study reveals the presence of 266 species belonging to 179 genera and 68 families of vascular plants have been recorded. Based on species contribution, Poaceae, Asteraceae, Mimosaceae, Fabaceae, Malvaceae, Solanaceae, Capparaceae, Euphorbiaceae, Caesalpinaceae, Amaranthaceae, and Asclepidiacea, were found as dominant families. Life-forms in order of importance were Hemicryptophytes (25.93%), Chamaephytes (24.81%), Therophytes (24.43%), and Phanerophytes (21.05%), while the least frequent life form class was Geophytes (3.38%), and Epiphytes (0.37%). The proportion of plant life forms in the study area is very close, indicating that the study area is predominantly desert in nature. The large spread of Acacia sp. shrubs indicates the desert climate in the study area
Decomposition of Curvatur tensor filed \(R_jkh^i \) recurrent spaces of first and second order
Authors: Al-Qashbari Adel Mohammed Ali , Saeed Abdullah Saeed Abdullah
Published: October 2023

Finsler geometry has many uses in relative physics and many of mathematicians contributed in this study and improved it. Takano [26] has studied the decomposition of curvature tensor in a recurrent space. Sinha and Singh [25] have studied and deﬁned the decomposition of recurrent curvature tensor ﬁeld in a Finsler space. Negi and Rawat [11] and [12] have studied decomposition of recurrent curvature tensor ﬁelds in K¨aehlerian space. Rawat and Silswal [19] studied and deﬁned the decomposition of recurrent curvature tensor ﬁelds in a Tachibana space. Rawat and Singh [21] studied the decomposition of curvature tensor ﬁeld in K¨aehlerian recurrent space of ﬁrst order. Further, Rawat and others [20],[22] and [23] studied the decomposition of curvature tensor ﬁeld in Einstein- K¨aehlerian recurrent space of ﬁrst order. Al-Qashbari [1], [2], [3] and [4] and Qasem and others [14], [15], [16], [17] and [18] studied the recurrent for different curvature tensors .In the present paper, we have studied the decomposition of curvature tensor ﬁelds \(R_jkh^i\) in recurrent space of First order and second order, and several theorems have been established and proved.
Perancangan Ui/Ux Aplikasi Sumatera Bus Berbasis Android Menggunakan Figma
Authors: Alda Muhamad , Daulay Nurul Arfisyah , Khoiriah Erni , Berutu Mira Pebriani
Published: October 2023

Sumatera Bus is an android application for ordering bus tickets online. In the process of ordering tickets manually, various obstacles often occur, including running out of bus tickets. The process of ordering manual tickets became the basis for making the Sumatera Bus android application. With the presence of Sumatera Bus, it is expected that the process of buying tickets will run smoothly for prospective passengers and a wider range of business for the management of Sumatera Bus. The methodology used for system design is the prototyping methodology. System design using figma and visual appearance with user interface and user experience. The results of this research are expected to be able to develop the Sumatera Bus business market and provide convenience for prospective passenger in ordering tickets so as to provide a good travel experience.

Keywords: Android, UI/UX, Prototype, Bus, Figma.
Hygienic justification for the classification of the danger of sources of emissions of substances having an olfactorial action
Authors: Budarina Ol’ga V. , Sabirova Zul’fiya F. , Andryushin Il’ya B. , Shipulina Zinaida V.
Published: October 2023

The purpose of the study is a comparative analysis and ranking of industries related to sources of olfactory exposure, depending on the odour’s “offensiveness” of their emissions.
Material and methods. Experimental olfacto-odourimetric studies were carried out using a dynamic olfactometer ECOMA TO-8 on the example of fifteen mixtures of substances (over 4200 measurements) representing or simulating emissions from the industries including particle boards, vegetable oil from soybean and rapeseed seeds, coffee, perfumery and cosmetic products, food flavourings, tobacco products, as well as livestock operations, gas odourizing, and fuel oil steam treatment. Statistical data processing was performed using the computer software Probit Analysis (v.4.0). Analytical study of mixtures of substances contained in emissions was carried out using a FOCUS GC-DSQ-II chromato-mass spectrometer.
Results. Based on the conducted olfacto-odourimetric studies of samples and models of emissions from the productions and technological processes related to sources of odour with the establishment of odour’s detection thresholds and the “offensiveness” thresholds of substances, a facilities’ hazard classification is proposed taking into account the odour’s “offensiveness” (“annoyance potential”) of emissions (extremely offensive, offensive, moderately offensive and slightly offensive), which makes it possible to update the current classification according to SanPiN 2.2.1./2.1.1.1200–03 (new edition) and the Decree of the Chief State Sanitary Doctor of the Russian Federation dated February 28, 2022 N 7.
Limitations. The study’s limitations associated with the use of a relatively new experimental method for the presentation of odour stimuli and their registration, which requires additional testing, as well as with the possible transformation of substances during the delivery of emission samples to the laboratory.
Conclusion. The methodology of the experimental odourimetric evaluation of multicomponent mixtures of odorous substances that are part of the emissions of various enterprises and municipal facilities makes it possible to quickly and rationally optimize the existing classification of industries according to the “offensiveness” criterion (or “annoyance potential”) of the odorous emissions.
The role of sociological methods in implementation of environmental hygienic health monitoring for territories
Authors: Makovetskaya Anna K. , Khripach Ludmila V. , Goshin Mikhail E. , Budarina Olga V. , Karmanov Aleksey V.
Published: October 2023

Introduction. The presence of an unwanted annoyance odour is the one of the important criteria for atmospheric air quality, affecting its assessment.
This study is aimed at using of sociological methods for identifying the sources of atmospheric air pollution with odorous substances and for assessing possible impact of their pollution on human health and life quality in a city with various industrial enterprises.
Materials and methods. The study of the perception of atmospheric air pollution with odorous substances by residents of Glazov (Udmurt Rebublic) was carried out based on the analysis of messages on social networks, a survey of inhabitants, as well as with the help of qualitative sociological research, including interviews and focus groups.
Results. The survey of residents have shown there to be a problem of annoying, intrusive odours in the city, the frequency of perception and intensity of which, as well as the degree of corresponding annoyance, are associated with the presence of various health complaints. As a result of the analysis of residents’ messages on social networks, conducted interviews and focus groups, the suspected sources of annoyance odours were identified. Among the city residents a tendency is shown to associate changes in habitual behaviour with the presence of annoyance odours in the atmospheric air.
Limitations. The limitations of this study are related to the sample size. Increasing the sample size will allow gettin a more accurate picture in the future.
Conclusion. The results of the analysis of statements made by city residents about the presence of annoyance odours can serve as a starting point for identifying potential sources of atmospheric air pollution with odorous substances, as well as an important and useful additional fragment to the data of the questionnaire survey of inhabitants for more complete assessment of the environmental situation in the studied locality and the development of management decisions to reduce atmospheric air pollution with odorous substances.
Comparison of Forecasting Accuracy Using the Short Moving Average (SMA) Method Using Boxplot Outlier Filtering and Not Using Outlier Filtering for Data that has a high level of variation
Authors: Akhmad Tajuddin Tholaby MS
Published: October 2023

The Short Moving Average (SMA) forecasting method is one of the most widely used forecasting methods, especially for processing data with a high level of variation and is not linear with time. However, opportunities to develop and improve forecasting performance using the SMA method are still wide open. The performance of a forecasting method can be seen from the distribution of errors. SMA does not see and does not sort the type of input data that will be processed into a forecast value, whether the input data has small or large variations, or has outlier data. If the input data has an outlier, then that outlier can make the forecasting performance not good. One of the efforts to improve SMA forecasting performance is by filtering outlier data. In this study, a comparison was made of the forecasting results for SMA using outlier filtering with the forecasting results for SMA not using outlier filtering. The next step is to compare the error values, namely those that produce the smallest Mean Squared Error (MSE) and Mean Absolute Percentage Error (MAPE) values. From the results of the study it can be seen that the performance of SMA using the Boxplot filtering method gives better forecasting results than those without using outlier filtering.
Zinc Electroplated Coating and Post Weld Heat Treatment on Micro Dissimilar Metal Inert Gas Welding
Authors: Mahrus Khoirul Umami  , Hakam Muzakki  , Zainal Arifin
Published: October 2023

The welding process could reduce the performance of the material both microstructure and mechanical strength. Therefore, handling the welding results was necessary. There are several ways to improve the performance of welded joints, namely heat treatment and coating using electroplating. The materials used were galvanized and stainless steel 201 with a size of 100 x 50 x 0.5 mm. Welding used the Metal Inert Gas (MIG) method, while the filler metal used was AWS ER70S-6. The results of the welding were coated by electroplating, while the post-weld heat treatment was carried out to determine the effect of electroplating and heat treatment on the hardness of the joints. There were three temperature variations namely 250 °C, 300 °C, and 350 °C, and three variations of holding time, namely 30 minutes, 60 minutes, and 90 minutes. The highest value of roughness (116.68 VHN) was obtained from a combination of a temperature of 300 °C and a holding time of 30 minutes. While the lowest hardness value (54.93 HVN) was obtained from a temperature of 300 °C with a holding time of 90 minutes.
Computational Fluid Dynamic Analysis in Spray Dryer Design By Distillation System Of Sea Water To Salt
Authors: Ibnu Irawan  , Rifky Yusron
Published: October 2023

Spray Dryer is the most widely used industrial process for drying. Continuous production can be carried out in powder or powder form from liquid raw materials. The feed to some desiccant may be a liquid in which the solid will float as light particles, or it may be in the form of a solution. Some drying products are resistant to rough handling and very hot environments, but some require careful handling at low or moderate temperatures. Computational Fluid Dynamics (CFD) in a spray dryer system design uses an atomization system to convert seawater into salt. The process of analyzing several needs, regarding the function of time from worker efficiency and the results of processing seawater into salt is the focus of researchers. The results of this research process are CFD analysis on spray dryer system design, analysis of mass flow rate and heat of drying air. The results from the analysis using CFD can be concluded, namely the spray dryer design specifications are __ = 1500 mm __ = 200 mm, diameter = 1100 mm. While the temperature of the hot air entering is 130oC and the pressure to the nozzle is 12.849 psi. The Spray Dryer as a result of the design planning is capable of producing 0.36 kg salt/hour with a seawater requirement of 10.25 kg. The results of the simulation of the inflow of hot air fluid and seawater spray on the nozzle, show the level of homogeneity of the mixture, this can cause seawater particles to separate, one of which is NaCl or salt. System efficiency is at 80% based on the mass of seawater processed to become salt.
Medical Information Retrieval with Weighting Critical Score for Acute Respiratory Infection (ARI) Desease Detection
Authors: Fika Hastarita Rachman  , Rike Ayu Arista  , Ika Oktavia Suzanti  , Yonathan Ferry Hendrawan  , Aryono Yerey Wibowo
Published: October 2023

Medical Information Retrieval (Med-IR )is part of computer science that discusses the search for a medical document. Medical Information Retrieval is needed by patients to know the initial prediction of the symptoms they are experiencing. ARI (Acute Respiratory Infection) is a disease that almost everyone has experienced which can cause death. This study uses a dataset of ARI sufferers and user queries that contain symptoms in text form. Furthermore, the query data is processed with the Med-IR application using Bi-Gram, TF-IDF as the feature extraction and Cosine Similarity as the similarity method, so that a return document is produced which is expected to be used as an early prediction of ARI in patients. The research also uses a critical disease wighting process, so that the results of the Med-IR are complemented by predictions of the severity level of the disease. From the results of research conducted at the Assyafi'u Sentosa Lengkong Clinic, Nganjuk, the best results were obtained for precision values ​​of 85.5% and 52.9% for recall values ​. The evaluation of disease severity with Mean Absolute Percentage Error (MAPE) getting a low score of 2,529%. Keyword : Medical Information Retrieval, ARI, Weighting critical disease, Bi-Gram, TF-IDF, Cosine Similarity.
The increasing demand for TOEFL tutoring among graduate students: Understanding the motivations behind it
Authors: Izzuddin Izzuddin  , Budyi Suswanto  , Imam Bahrudin
Published: October 2023

Private extra academic support, also referred to as shadow education has experienced growth, in Asian nations, such as Indonesia. However, despite its use this type of education often receives attention from the government compared to formal schooling. This research aims to explore the motivations that influence university students’ choices to seek academic support specifically for TOEFL preparation—a vital step towards achieving an internationally recognized English proficiency score. Involving 60 university students for the data collection using questionnaire, this study identified factors that drive the demand for private TOEFL tutoring among Indonesian graduate students. Despite concerns about the absence of standardization and potential student exhaustion resulting from tutoring it continues to provide personalized instruction and assistance. This study highlights the role that private supplementary tutoring plays in meeting the growing demand for success and its impact on students’ academic and career paths, in Indonesia.
The meaning of the local value of Sandeq Boat in the Banggae Community of Majene Regency
Authors: Mario  , Riri Amandaria  , Musrayani Usman
Published: October 2023

This study aims to find out, how passandeq and the community interpret the local values of sandeq boats today. To achieve this goal, this study uses data collection techniques through observation, interviews, and documentation. The data obtained by researchers from the results of the study were processed by methods used through purposive sampling where the key informant was a passandeq fisherman, then other informants comes from the Banggae community and culturalists. The results showed that the representation of passandeq fishermen and the community towards the local values of sandeq boat culture is still so poorly understood from the meaning of what is described by ancestors in Mandar on sandeq boat culture. The need for the important role of all elements of society to make efforts so that the famous culture in Indonesia from the Mandar tribe is preserved and its meanings Every value in it is able to be conveyed and understood to existing generations. The socio-cultural values of Sandeq boat culture consist of two: first is sibaliparriq which is a gender concept that is more specific in In the family consists of husband and wife. Second, mutual aid at this value is clearly depicted in the sandeq boat where the courtiers and mustard work together in sailing their respective sandeq boatsHave duties and roles when going to sea using Sandeq boats.
Comparison of Indonesian President Jokowi's Political Victory Strategy and Malaysia's Anwar Ibrahim
Authors: Agus Machfud Fauzi  , Refti Handini Listiyani  , Muhammad Arif Affandi  , Silkania Swarizona  , Anam Miftahul Huda  , Maya Mustika Sari
Published: October 2023

Joko Widodo Indonesia's Winning Strategy in the 2019 Presidential Election and Malaysia's Anwar Ibrahim in the 2022 Election are interesting strategies for scientific knowledge. The purpose of this study is to reveal how the winning strategy was carried out by Pak Jokowi who was attacked by Prabowo's political opponents, and Anwar Ibrahim who took 24 years to win. This study uses a qualitative method using the comparative theory of victory for the winning strategy between the two political actors. The results of the study show that Anwar Ibrahim and Jokowi both won the contest for the election of the prime minister in Malaysia and the president in Indonesia. The difference is that Anwar Ibrahim used the strategy of fighting the persecuted people until he got the power to win, while Jokowi won with the strategy of showing criticism of the first period's rulers, while in the second period, the winning strategy was by gathering all political forces with the hegemony of the incumbent.
Análisis de un taller sobre intervención policial en situaciones de emergencia: debate constructivo y dialógico sobre la violencia en las relaciones de pareja heterosexual
Authors:   Departamento de Psicología Evolutiva y Didáctica. Universidad de Alicante, Mañas Viejo Carmen , Mendoza Cortés Vanessa ,   Asociación Stop Violencies. Principado de Andorra
Published: October 2023

Presentamos a continuación el análisis de la experiencia llevada a cabo en el curso de experto universitario en “Prevención de Violencia de Género”, curso realizado por la Universidad de Alicante en coordinación con la Generalitat Valenciana y el Instituto Valenciano de Seguridad Pública y Emergencias (IVASPE). Dirigido a las fuerzas y cuerpos de seguridad (FFCCS). El objetivo es mejorar las habilidades y técnicas de comunicación en las intervenciones de emergencia por violencia en parejas heterosexuales. Nuestra experiencia se enmarca dentro de un diseño de taller de formación especializada de 10 horas de duración en el marco de la asignatura “Habilidades y técnicas de comunicación”, cuyo desarrollo se basa en la capacidad que la dialéctica constructiva tiene de afrontamiento y transformación social, así como en la concepción de la violencia contra las mujeres como un atentado contra los derechos humanos y la pertinencia de las habilidades y técnicas de comunicación efectiva en la intervención policial en este tipo de emergencias. Nuestros resultados muestran una buena estructuración de la intervención policial en tres fases (llegada, desarrollo y cierre) y la necesidad de profundizar en la intervención y protocolo a seguir con los agresores.
El sicariato: una mirada al fenómeno desde la perspectiva criminológica
Authors:   Policía Nacional de Colombia, Murillo Orrego Fernando , Bedoya Ramírez Jimmy Javier ,   Policía Nacional de Colombia, López Muñoz Liliana ,   Policía Nacional de Colombia
Published: October 2023

Antecedentes: el sicariato es un fenómeno de violencia que afecta a la sociedad contemporánea, en medio de valores relativos al respeto de la vida y la integridad humana. En Colombia, los datos y cifras de los homicidios evidencian que durante los años 2017-2020 se presentaron aproximadamente 26 161 casos en la modalidad sicariato; las motivaciones se asocian fundamentalmente al narcotráfico, economías ilegales, disputas territoriales y factores sociales. Objetivo: identificar la etimología de la palabra “sicario”, características, investigaciones y algunas tendencias generacionales sobre el sicariato. Método: este estudio se realizó desde un enfoque cualitativo, diseño documental mediante la revisión de algunas teorías sobre subculturas criminales (Cohen, 1955), el aprendizaje de la conducta delictiva (Sutherland, 1974), aprendizaje social (Bandura, 1987; Becker, 1974), crimen y castigo (Bourdieu, 1997), el entorno social que lo rodea y economía criminal, otros autores y revisión bases de datos: Mendeley, Proquest, Redalyc, base, BBC learning english, entre otros. Resultados: este trabajo permitió recoger conceptos, características, tendencias delictivas y análisis criminológicos del fenómeno; se establecen algunas tipologías, por modus operandi y capacidad del perpetrador del hecho punible, surgimiento del sicariato en Colombia y algunas características de los códigos de conducta de las dos últimas generaciones de sicarios. Finalmente, se plantean las conclusiones.
Tax rules on wealth imbalance and the investigation of money laundering in Peru
Authors:   Universidad de Lima, Llaque Sánchez Fredy Richard , Vásquez Tarazona Catya ,   Universidad Nacional Mayor de San Marcos, Ramón Ruffner Jeri ,   Universidad Nacional Mayor de San Marcos, Llaque Sánchez Alex Henry ,   Pontificia Universidad Católica del Perú
Published: October 2023

This study aims to evaluate the feasibility of using the tax methodology for determining unjustified increases in assets in money laundering cases heard in the courts. It also seeks to identify the errors made by the Tax Authority with the purpose of ascertaining whether these errors could hinder the successful application of the methodology in investigations of money laundering cases. In order to achieve these objectives, a mixed research methodology was conducted that included the analysis of rulings issued during the years 2020 and 2021 by the Peruvian Tax Court and sentences issued by the judiciary. This was complemented by semi-structured interviews with experts from the public sector, academia and accounting with relevant experience on the subject. The study found that there are some practical issues in the application of the methodology that can be overcome and that do not represent an insurmountable constraint. The study also found that the tax methodology allows for a more effective clarification of asset imbalances, and concludes that, once implementation errors have been overcome, the tax methodology can be feasibly employed to the benefit of money laundering investigations.
PROCESSING OF FINE WASTES FROM ALUMINUM PRODUCTION TO OBTAIN A FLUORITE-CONTAINING PRODUCT
Authors:   Siberian Federal University, Kulikov B.P. , Vasyunina N.V. , Dubova I.V. , Balanev R.O. , Sysoeva Y.S. , Ivanova I.K.
Published: October 2023

Fluorocarbon-containing wastes from aluminum production are a potentially promising raw material for use in ferrous metallurgy, cement and alumina industries. The paper evaluates a method for processing finely dispersed fluorocarbon-containing wastes and middlings of aluminum production by caustification with lime milk to obtain a product containing synthetic fluorite used as a mineralizer for the preparation of clinker cement.
PHYSICAL AND CHEMICAL REGULARITIES OF THE COMPLEX PROCESSING OF LIGNITE AND CARBON-CONTAINING WASTES FROM ALUMINUM PRODUCTION WITH THE EXTRACTION OF RARE ELEMENTS
Authors:   Siberian Federal University, Krasnoyarsk, Russia, Kazantsev Ya.V. , Shimanskii A.F. , Losev V.N. , Buyko O.V. , Eromasov R.G.
Published: October 2023

Rare elements, including rare earth metals (REM), germanium and gallium are widely used in various fields of science and technology. Germanium and gallium are used in the semiconductor industry, and rare-earth metals are used in structural materials for aviation and space, as well as in nuclear energy. The sufficiency with own raw materials is a strategic issue for producers of rare metal raw materials. Despite the vast reserves of rare metal deposits in Russia, they are far from developed infrastructures and are characterized by a complex enrichment technology.
Lithium extraction from spodumene concentrate by hydrothermal leaching
Authors:   Joint Stock Company «Chemical Metallurgical Plant», Krasnoyarsk, Russia, Korolkova I.V. , Zhilin K.P. , Kondrasenko A.A. ,   Joint Stock Company «Chemical Metallurgical Plant», Krasnoyarsk, Russia; Institute of Chemistry and Chemical Technology SB RAS, Krasnoyarsk, Russia
Published: October 2023

Since «green energy» trends become priority active development of lithium batteries is stimulated. This and other areas of lithium application justify its high demand in the world. Hardrock pegmatites (spodumene,lepidolite, petalite etc.), salar brines and underground waters are the main sources of lithium. Russian Federation holds one of the leading places having considerable lithium reserves. However, over 70 % of the reserves are associated with mineral resources. Among these resources spodumene LiAl[Si2O6] is the most abundant lithium mineral.
VARIABILITY OF ORE MINERALOGY AT THE OLIMPIADA DEPOSIT
Authors:   Polyus Krasnoyarsk JSC, Krasnoyarsk, Russia, Starodubtseva A.A. , Savushkina S.I. , Snezhko V.A. , Rukosuev A.V. , Ozerskiy M.A.
Published: October 2023

One of the main tasks of the current production is to improve the economic performance of the operations when processing the ores mined at deep levels. Primary ores of the Olimpiada deposit are characterized by the complexity of the material composition and the variability of the main criteria of technological properties. A high variability in mineral composition of primary ores affects the quality of raw materials and their technological properties. This requires operational control of mineral contents and their ratios. The mineral composition of ores of the Olimpiada deposit is studied by X-ray diffraction (XRD).
SYNTHETIC TENGERITE-(Y) SYNTHESIS WITH FURTHER STUDY OF ITS PROPERTIES BY PHYSICOCHEMICAL AND QUANTUM-CHEMICAL METHODS
Authors:   Institute of Chemistry and Chemical Technology SB RAS 2The Siberian Federal University, Kirshneva E.А. , Saikova S.V. ,   Institute of Chemistry and Chemical Technology SB RAS; The Siberian Federal University, Kuklin A.V. ,   Department of Physics and Astronomy, Uppsala University
Published: October 2023

Synthetic tengerite-Y with the formula Y2(CO3)3 ·2–3H2O is a representative of carbonates of rare earth elements. This material has an orthorhombic crystal lattice and belongs to the space group Bb21m. Yttrium atoms in ninefold coordination with carbonate groups form corrugated layers. The connection between the layers is also provided by carbonate groups. Due to the structural features tengerite-(Y) is a promising precursor for the synthesis of both bulk and two-dimensional luminescent materials by doping with rare earth elements.
INCREASING THE EXTRACTION OF GOLD FROM CARBONACEOUS RAW MATERIALS USING THE ROASTING OF AUTOCLAVE RESIDUES
Authors:   Nietz Technologies, St. Petersburg, Russian Federation, Khasanov A.V. , Fomenko I.V.
Published: October 2023

The most common reason for the persistence of gold-bearing ores and concentrates is the fine dispersion of gold in sulfides, usually in pyrite and arsenopyrite. Some types of such raw materials also contain natural organic carbonaceous matter (also referred to as carbonaceous matter (farther CM)), which has the ability to sorb gold in solution. This phenomenon is called preg-robbing (farther PR).