bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of the flow characteristics and augmentation of heat performance in a horizontal tube with and without spring inserts
Authors: Saad Obied Esmaiel  , Dhamyaa Saad Khudhur
Published: January 2024

In this project, heat transfer and thermal performance factor characteristics in a tube fitted with coil wire and twisted tape inserts, using air as working fluid are investigated experimentally. Enhancement forced convection heat transfer characteristics is studying for air Reynolds number range from 10.328×103 to 11.769×103 and 10.927×103 to 12.029×103 in the tube without and with coil wire inserts. Effects of various hydrostatics parameters on the heat transfer are considered in this work with heat flux are constant conditions of 600 W/m² and 800 W/m² with using the coil wire and twisted tapes with three ratios (y/w = 3, 4 and 5). The test section is a horizontal annular passage with outer diameter 10 cm. The results indicated that the enhancement of heat transfer coefficient factors in tube with coil wire inserts provide local heat transfer coefficient percentages of (5.1% to 7.8%) for heat fluxes (600) W/m² and (800) W/m² respectively. While tube with swirl inserts provide local heat transfer coefficient percentages of (3.6% to 6.1%) for heat fluxes (600) W/m² and (800) W/m² respectively. The obtained results show that mean Nusselt number and heat transfer coefficient in the tube with twisted tape and coil wire increase with decreasing twisted ratio (y/w). It is also observed that the percentage of heat transfer coefficient for the coil wire when compared with that of swirl inserts tube were ranged between (10.6%) to (16.5%) and (11.5%) to (17.3%) for the heat flux (600) W/m².
The meaning of “Being Art”: Perception and reality
Authors: María Laura Vazquez  , Mayra Alejandra Castañeda Cataña  , Mercedes Diemanz Hartz  , María Josefina Carlucci
Published: January 2024

Art and Science try to explore what we consider true. It does not depend on how reality is really, but actually on how we perceive it as humans. So, we create our own reality as we go through space basically. Our body is a good indicator. Art by all means, is the ability of the Being to investigate and create an intimate relationship with itself. Every action in life is art if it leads us to contemplate life with renewed eyes, and to perceive its incessant intelligent flow that blooms from our inner beauty. How many colors are there in our emotions towards reality perception? While contemplating reality, what kind of thoughts are we generating? Do they affect our state of consciousness?
Case report: 82-year old patient with chronic subdural hematoma (SDH)
Authors: Evan Nugroho  , WhennyAphrilia Pramusinta  , Imron Wahyudi
Published: January 2024

Background: Chronic Subdural Hematoma (CSDH) is commonly found on elderly and appears to be increasing within the last decades. Not only associated with substantial morbidity and mortality, CSDH also increases financial burden, thus appropriate treatment is required for better outcomes. Case Presentation: 82-year-old patient is admitted with the chief complaint of decrease in consciousness since 12 hours before admission. The family also complained an untreated left hemiparesis since one week prior to the admission. Patient also complained pain when straightening the right leg before losing consciousness. Summary: CSDH is a common neurosurgical case amongst elderly. Burr-hole drainage is the preferred technique to treat the condition. Follow up after the treatment is recommended as recurrence is quite common.
A review of U.S. management accounting evolution: Investigating shifts in tools and methodologies in light of national business dynamics
Authors: Beryl Odonkor  , Simon Kaggwa  , Prisca Ugomma Uwaoma  , Azeez Olanipekun Hassan  , Oluwatoyin Ajoke Farayola
Published: January 2024

This study provides a comprehensive analysis of the evolution of management accounting in the United States, focusing on the shifts in tools, methodologies, and the influence of national business dynamics. The primary objective was to understand how management accounting practices have adapted to technological advancements, economic changes, and regulatory developments. Utilizing a systematic literature review process, the study involved identifying relevant literature through databases like Scopus, Web of Science, and Google Scholar, employing keywords related to management accounting evolution. The selection of sources was based on predefined inclusion and exclusion criteria, emphasizing relevance, quality, and methodological rigor. Content and thematic analysis was used to interpret findings from the qualitative data. Key findings revealed a significant evolution from traditional cost accounting methods to strategic, data-driven approaches, influenced by technological advancements and changing business environments. The study identified a shift towards integrated, predictive, and data-driven management accounting practices, with a growing focus on sustainability and digitalization. The impact of technological, economic, and regulatory factors was found to be profound, necessitating continuous adaptation in management accounting practices. The study concludes that management accounting in the U.S. is highly dynamic, responding effectively to technological and economic changes. Recommendations for future research and practice include embracing technological advancements, adapting to economic and regulatory changes, focusing on sustainability, enhancing education and training, and encouraging collaborative research. This study underscores the necessity for ongoing adaptation and innovation in management accounting to maintain relevance in a rapidly evolving business landscape.
Paradise lost: A classical epi
Authors: Hani Oudah Neamah  , Nooruldeen Sabah Hasan  , Ahmed samer Mohammed
Published: January 2024

John Milton's "Paradise Lost" stands as a monumental work in the canon of English literature, embodying the classical epic tradition with its grand scope, profound themes, and poetic mastery. This abstract delves into the quintessential characteristics that classify "Paradise Lost" as a classical epic. The narrative unfolds against the cosmic backdrop of Heaven, Hell, and Earth, exploring the consequences of Adam and Eve's disobedience and their subsequent expulsion from the idyllic Garden of Eden. Milton weaves a tapestry of theological inquiry, grappling with the complexities of free will, theodicy, and the nature of God. The poem introduces a heroic protagonist in Adam, whose choices shape the destiny of humanity. Divine intervention, epic battles, and supernatural elements contribute to the poem's grandeur, while Milton's elevated language and incorporation of classical and biblical allusions elevate it to the status of an enduring masterpiece. "Paradise Lost" serves not only as an epic retelling of the biblical Fall but also as a didactic exploration of moral and spiritual themes, making it a timeless work that continues to captivate readers and scholars alike.
Intellectual Capital Disclosure dan Kinerja Keuangan: Systematic Literature Review
Authors: Fadiyah Nur Laily , Sabillah Natasya , Islamiyah Maya Adillah , Fernanda Erfina , Hermawan Sigit
Published: January 2024

This research aims to find out the direction of development of Intellectual Capital Disclosure and Financial Performance research for 7 years (2015-2022) by mapping or classifying according to themes and according to keywords. By using a literature review system as the basis for research analysis, this research uses a descriptive qualitative approach to collect data. The articles reviewed were taken from Sinta indexed or accredited Sinta-2 journal sources. The research results show: (1) Mapping according to theme shows that the Sinta 2 Accredited Scientific Journal with the name "Accounting or Accounting" totals 10 journals; (2) Mapping according to keywords shows that the number of articles with the keywords Intellectual Capital Disclosure and Financial Performance is 16 articles. The researchers emphasized many limitations of this article. The author determined this limitation by only looking at articles published in the accredited journal Sinta 2 and focusing on the study of Intellectual Capital Disclosure and Financial Performance in Indonesia. Articles from other countries were not included in the review. As a result, there may be articles on certain subjects that are not covered in this review. Although the limitations of this article are the results of the review that the author described, it cannot be concluded that it can generally be applied in Indonesia due to the limited scope of much research
Legal Protection For Third Parties Who Are Provided As Individual Guarantees By Fintech Peer-To-Peer Lending
Authors: Manggala Ferdiansyah Putra
Published: January 2024

The emergence of fintech companies is increasingly receiving attention from the public and regulators, namely the financial services authority (OJK) and Bank Indonesia (BI). This is stated in Financial Services Authority Regulation Number 77/POJK.01/2016 concerning Information Technology-Based Money Lending and Borrowing Services. This regulation regulates information technology-based money lending and borrowing services or what is called peer to peer money lending. As of May 24 2021, the total number of fintech peer to peer lending or fintech lending providers registered and licensed with the OJK was 131 companies. In the case of a loan recipient applying for a loan on an online loan platform, the borrower will usually be asked to include an emergency contact as a condition for applying for a loan, but this is done without the permission of the third party who is used as an emergency contact. This resulted in losses for the emergency contact party due to terror from the lender as a result of the loan recipient experiencing late payments. LBH Jakarta received 1330 reports of loan victims from 25 provinces in Indonesia. One of them is Dian Siregar, who was a victim who was terrorized by an online loan where he received a short message from one of the KSP Rupiah Petir Pro loan applications after being made a guarantor by his friend without prior approval or confirmation.
Impulsivity: Features of Fоrmatiоn and Infl uence on Mental Pathоlоgy
Authors: Zinkevich A. S. , Оmelchenkо M. A.
Published: January 2024

Backgrоund: impulsivity, as оne оf the key prоblems оf yоuth psychiatry, is becоming mоre and mоre widespread, which is assоciated with the steadily increasing cоntributiоn оf pathоlоgy оf this circle tо the structure оf mental disоrders.

   Оbjective: analysis of publications on the place of impulsivity in the structure of mental disorders, its clinical manifestations, connection with psychopathological formations, prognostic significance in relation to the further course and outcomes of mental disordres.

   Material and methоds: accоrding tо the keywоrds: “impulsivity”, “aggressiоn”, “adоlescence”, “depressive disоrder”, “schizоphrenic spectrum disоrders”, a search was cоnducted fоr publicatiоns in Medline/PubMed, Scоpus, Web оf Science, RSCI and оther sоurces.

   Cоnclusiоn: impulsivity is a multidimensiоnal phenоmenоn that has nо nоsоlоgical specificity, hоwever, it has a high pоtential hоpathоlоgical symptоms. Impulsivity is clearly cоrrelated with a mоre severe clinical cоurse оf mental disоrders and with unfavоrable оutcоmes. The lack оf veriашed data оn the pathоgenesis оf impulsivity, its cоnnectiоn with оther syndrоmic fоrmatiоns: affective, pоsitive, negative, disоrganizatiоn, determines the need fоr additiоnal study оf the phenоmenоn оf impulsivity, as well as its cоnnectiоn with aggressiоn.
Oxidative Stress in Schizophrenia: Relation to Neurochemical Pathogenetic Hypotheses
Authors: Burbaeva G. Sh. , Prokhorova T. A. , Savushkina O. K. , Tereshkina E. B. , Vorobyeva E. A. , Boksha I. S.
Published: January 2024

Background: heterogeneity of schizophrenia is reflected in the variety of clinical manifestations and biological disorders, on the basis of which several neurochemical hypotheses are formulated for schizophrenia pathogenesis. Review of the current hypotheses of schizophrenia pathogenesis shows that oxidative stress is not the main cause of the disease development, but affects its course and contributes to the deterioration of the patient’s condition.

   Objective: analysis of the relationships between redox imbalance and oxidative stress and the development of pathological processes in schizophrenia within the framework of neurochemical hypotheses of the disease pathogenesis.

   Material and methods: a search was made for sources in the Medline/PubMed databases, Scopus and RSCI using keyword combinations “oxidative stress”, “oxidation-reduction imbalance”, “schizophrenia”, “hypotheses of schizophrenia pathogenesis”, “antioxidants”, “neurotransmitters”, “glutathione”, “neuroinflammation”.

   Conclusion: data from numerous studies of the brain of patients with schizophrenia, their blood plasma, serum, and blood cells as well as the study of animal models of schizophrenia indicate the presence of redox imbalance and oxidative stress in this disease. Taken together, these data indicate that genetic and environmental factors that affect the manifestation of various pathological mechanisms in schizophrenia (disturbances in neurotransmitter systems, hypofunction of N-methyl-D-aspartate receptors, neuroinflammation, impaired signaling protein phosphorylation pathways) lead to the oxidative stress, enhancing the initial pathological changes, as a result of which synchronization processes and intercellular communications in the brain become disrupted. Medicines with antioxidant and anti-inflammatory properties, compounds for correcting mitochondrial dysfunction, and NMDAR-mediated signaling modulators can be used as drugs to reduce the harmful effects of oxidative stress. The efficacy of these medicines may vary in different patients, so the development of biomarker systems aimed at identifying individuals who are more likely to respond to a particular drug is of great importance.
Aspek Hukum Hak Menguasai Negara DI Bidang Pertambangan Pasca Pembaruan Undang-Undang Mineral dan Batubara di Indonesia
Authors: Yanto Andri , Hikmah Faidatul
Published: January 2024

The concept of State Control Rights, as constitutionally attributed in Article 33 Paragraph (3) of the 1945 Constitution, constitutes a fundamental paradigm. The dialectics of mining policy formulation in Law No. 3 of 2020, which updated the regulation of minerals and coal, ushered in a series of transitions and consequences for the development of the concept of State Control in Indonesia, particularly concerning the substance of Article 4 Paragraph (2) of Law No. 3 of 2020, which introduced the policy of re-centralization. This research employs a juridical-normative method, utilizing a legislative approach and norm analysis pertaining to the concept of State Control Rights. The findings of this study indicate that, firstly, the formulation of state control in Law No. 3 of 2020 aligns intending to implement the concept of State Control as established by the Constitutional Court’s decision, emphasizing the permit system as a replacement for the contract system. Secondly, the centralization of authority over mineral and coal mining does not contradict the concept of State Control, as long as it can optimally generate an ideal and effective mining management system in advancing the prosperity of the people. The objective of this research is to provide a comprehensive overview of the application of State Control Rights in the revision of mining legislation, thereby offering policy insights for the development of substantive and just mining law in Indonesia.
Analisis Juridis terhadap Disparitas Putusan Hakim dalam Tindak Pidana Transaksi Elektronik dan Pencucian Uang (Studi Putusan Nomor :1240/Pid.Sus/2022/PN. Tng dan Putusan Nomor: 576/ Pid,Sus/2022/PN. Blb.)
Authors: Donald Henry Lbn Toruan , . Djamilus , Rini Nicken Sarwo , Fathony Ahmad
Published: January 2024

This article focuses on the crime of electronic transactions and money laundering. This focus was motivated by reports from victims of fraud by Indra Kenz and Doni Salman via videos circulating on social media regarding the investment business. This uses the Binomo and Quotex applications. During the examination at the Tangerang and Bale District Courts, Bandung, there was a disparity in the sentences imposed by the judges in decision Number: 1240/Pid.Sus/2022/PN.Tng and Decision Number: 576/Pid,Sus/2022/PN.Blb. Indra was sentenced to 6 years and Doni to 4 years. Based on this, this article wants to analyze the reasons that the judge considered in deciding the criminal case of electronic transactions and money laundering for the two perpetrators with different sentences for the two perpetrators. This is because the criminal acts committed by the two perpetrators have similarities. This research uses a normative juridical method with a case approach. Sources of legal research materials used consist of judge's decisions, cases to be analyzed, legislation, books (literature) and scientific journals related to writings and data from news articles. The data collection procedure was carried out by searching data on the internet related to the writing topic. All data collected will be compiled and analyzed using theory or expert opinion. Then, this theory is linked to the reasons or legal considerations (ratio decidendi) used by the judge in making his decision. This study concluded that the disparity in sentences imposed on the two perpetrators was due to the lack of clear regulations prohibiting binary option trading affiliates. Apart from that, there are differences in regulations regarding the spread of fake news that harm consumers in the ITE Law and the Consumer Protection Law.
Implementasi Pengaturan Standar Perhotelan dalam Mendukung Kepariwisataan Daerah: Studi Kasus pada Ommaya Hotel di Kabupaten Sukoharjo
Authors: Hettyning Hettyning , Khaerudin Ariy , Dewi Nourma
Published: January 2024

This study aims to determine the regulation of hospitality standards in supporting regional tourism and how the implementation of hospitality standards at Ommaya Hotel in supporting regional tourism in Sukoharjo Regency. The research is qualitative with a normative-empirical legal approach, using primary data and secondary data. The results of the study concluded that the regulation of hospitality standards that support tourism includes the regulation of the Tourism Business Registration Certificate (TDUP) in the field of business of providing hotel business type accommodation, the feasibility of building functions, water quality feasibility, hotel class management assessment, and tourism business certification. Ommaya Hotel has fulfilled several hotel standardizations in accordance with applicable regulations such as having a Tourism Business Registration Document (TDUP) in the field of business of providing hotel business type accommodation, water quality feasibility, hotel class classification assessment and Ommaya Hotel including two-star hotels. However, there are several hospitality standards that Ommaya Hotel does not yet have such as a certificate of the feasibility of building functions called the Certificate of Good Function (SLF), a certificate of good health, and a certificate of tourism business in the hotel sector.
Penyelesaian Wanprestasi Simpanan Deposito Akad Mudharabah yang Tidak Dikembalikan oleh Pihak KSU Syariah BMT Berlian
Authors: Zenita Putri Fiska , Wardani Susilo
Published: January 2024

Default is an act of violation of an agreement between two parties. When one party is unable to carry out its obligations in accordance with the existing agreement, then this action can be fully said to be a default. Mudharabah deposits are deposits of funds with a scheme where the owner of the funds (shahibul maal) entrusts his funds to be managed by the bank (mudharib) with the results obtained shared between the owner of the funds and the bank with the ratio agreed upon from the start. This research aims to analyze the factors that cause default of unreturned mudharabah contract deposits in Decision Number 37/Pdt.G/2018/PN Bau and to analyze the settlement of default of unreturned mudharabah contract deposits in Decision Number 37/Pdt.G/2018/PN Bau. The focus of this research covers the settlement of default of mudhrabah contract deposits that are not returned by the bank. This research uses a qualitative normative juridical method through a statutory approach using secondary legal data consisting of primary legal materials, secondary legal materials and tertiary legal materials. Based on the results of the research, it can be concluded that the factors causing default of mudharabah contract customer deposits that are not returned by KSU Syariah BMT Berlian, namely the first cause of default is the negligence of one of the parties. Second, the parties deliberately violated the contract agreement and violated Article 36 of the Compilation of Sharia Economic Law. The settlement of the default case of mudharabah contract deposits that were not returned by the KSU Syariah BMT Berlian was that the Panel of Judges had decided the case in accordance with statutory regulations, namely Article 1246 of the Civil Code and also contained in Article 38 of the Compilation of Sharia Economic Law.
CONSERVATION SCIENCE Trends: A Systematic Literature Review of Publications Between 2012-2022
Authors: Auliya rohmah Zaenab , Bella Yuyun Ayunda  , Raviah Azimatur
Published: January 2024

The purpose of the review article is to find out the research trends related to conservation science, which is very useful for developing teacher learning skills in line with the period of the Industrial Revolution 5.0, which uses a lot of technology integration in learning. In the Industrial Revolution 5.0, technology and humans will coexist to improve human life sustainably. This study is a systematic scientific literature review of the conservation of 500 Google Scholar-indexed journal articles published between 2012 and 2022, but only 17 journal articles that met the requirements were used. The findings show that the regions in Indonesia with the most scientific conservation research are Bandarlampung and North Lampung. Articles related to conservation-scientific research are primarily published in chemistry education and learning journals. Many science education research-based journals have published conservation science articles, but more chemistry coverage still needs to be provided. The most researched topics on the knowledge component in conservation science are colloids, salt hydrolysis, and mixture separation. The least studied are stoichiometry and thermochemistry, meaning these two topics have been of little interest to researchers in the last ten years. From some of the analyses in this literature review, we suggest sharing references and centers for conservation science in science education and formulating what topics need to be researched for further research.
Robotic Coding Perceptions of Middle School Students
Authors: GÖKÇE Hasan , GÖKÇE Zeliha , BEKTAS Oktay , SAYLAN KIRMIZIGÜL Aslı
Published: January 2024

This study aims to determine middle school students' perceptions of robotic coding. For this purpose, the case study design of the qualitative research method was used in the research. The research was carried out with 76 middle school students studying in a district of Kayseri province. A questionnaire consisting of nine open-ended questions was used as a data collection tool. The questions were asked to the participants in the online environment. The data were analyzed by content analysis, which is one of the qualitative data analysis types. In this direction, codes and categories related to the data were determined. The findings of the research are explained through direct quotations. The research concluded that the students associated the concept of the robot with technology, the students had never encountered a robot before, they wanted to design a robot, the concept of coding was expressed as giving commands, and they wanted to receive coding training. Based on these results, we recommended expanding robotic coding training.
Support in providing adequate nutrition for the length of treatment for patients after bone fracture surgery at the Meuraxa Hospital, Banda Aceh
Authors: Alamsyah T. , Marniati Marniati , Niswah Niswah , Nurhayati Nurhayati , Fajriansyah Fajriansyah , Ritawati Ritawati
Published: January 2024

One of the problems in fulfilling nutrition is the knowledge or belief that consuming excess protein will result in a longer wound-healing process. Meanwhile, nutritional status is essential in fulfilling nutrients for wound healing and length of stay in postoperative fracture clients. The study aims to determine the relationship between the fulfilment of nutritional needs in participants after lower extremity fracture surgery at Meuraxa Hospital, Banda Aceh City. This research design method is correlation analysis with a cross-sectional approach with a non-probability sample technique with a sample of 83 post-surgical bone fracture patients. The calculation method uses the formula for a 10% error rate from the total population of post-fracture inpatients 123 respondents. The research location is Meuraxa Hospital, Banda Aceh, and it was conducted in March 2021. Results, there is a relationship between knowledge about nutritional fulfilment (p= 0,005), eating habits (p= 0,002), and perceptions of dietary restrictions (p= 0,002) with the length of treatment days in patients after bone fracture surgery at Meuraxa Hospital Banda Aceh. In conclusion, nutrition support affects the length of treatment days, where knowledge, habits and abstinence can shorten treatment days.
A qualitative comparative study: Coping strategies among food secure and insecure pregnant mothers during the COVID-19 pandemic in Serang District
Authors: Seran Gloriana , Iswarawanti Dwi Nastiti , Sunardi Diana
Published: January 2024

The COVID-19 pandemic exacerbated the food security dimension, from the macro to micro level.  Households dealt with the crisis by implementing coping strategies led by mothers.  Consequently, these impacted their health and nutrition status, notably during pregnancy.  This unfavorable condition was due to their primary role in maintaining household food security.  This study aimed to explore the perceptions of pregnant mothers of food security and insecurity about their household coping strategies.  This study used phenomenology with purposive sampling, with 33 informants (21 pregnant mothers and 12 other informants) in Serang district from May to October 2022.  In-depth interviews (IDIs) were used during data collection, and the transcripts were verbatim.  Respectively, the data was analyzed using thematic coding with N-Vivo 12 Plus and Microsoft Excel.  Result, twenty-one pregnant mothers from food-secure (n=7) and insecure (n=14) households revealed adopting the food-focused coping strategies: rationing, scratching, seeking, and sharing.  Non-focused on food: sought new job and side hustle, sold assets, borrowed money.  Differentiation was the barter which the food insecure family solely adopted.  Conclusion, both food-secure and insecure households implemented 2 types of coping strategies, while the severe coping strategies were implemented by food insecure pregnant mothers.
A voz e a vez de Elaine Xavier Pereira, secretária do PPGE/Unimep
Authors: Pucci Bruno , Antunes-Souza Thiago
Published: January 2024

Entrevista com Elaine Xavier Pereira, que foi secretária do Programa de Pós-Graduação em Educação (PPGE–Unimep) por 26 anos (de 1996 a 2022). Elaine trabalhou com seriedade, dedicação, competência e comprometimento por todo esse período no PPGE, sendo uma das responsáveis pela reconhecida avaliação do Programa junto à CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior): nota 5 desde os anos 2000. Dada sua importância para a história do PPGE, nesse dossiê comemorativo do aniversário dos 50 anos, sua voz não poderia deixar de ser ouvida e nem seu testemunho esquecido, pois a história de Elaine é também parte significativa da história do PPGE e vice-versa. Nessa perspectiva, apresentamos a entrevista realizada com Elaine pelos docentes Bruno Pucci e Thiago Antunes-Souza, no dia 26 de agosto de 2022.
Growth kinetics and microstructure of iron boride layers on AISI 1050 steel
Authors: Айваз Сафие Ипек
Published: January 2024

Исследована кинетика диффузии бора в стали AISI 1050 (сталь 50). Проведено борирование стали в течение 2, 4 и 6 ч при 850, 900 и 950 °C с использованием порошка Экабор-II (Ekabor-II) методом пакетного борирования. На поверхности образцов получены боридные слои FeB/Fe2B толщиной 25,4 – 118,9 мкм. Сформированные боридные слои имеют типичную зубчатую морфологию и твердость 1071 – 1460 HV0,1. Рассчитанные по результатам диффузионно-кинетических исследований константы скорости роста боридного слоя для стали AISI 1050 при температурах борирования 850, 900 и 950 °C составляют 1,522 ' 10 – 12; 2,964 ' 10 – 13 и 6,354 ' 10 – 12 м2 ' с – 1 соответственно. Определена энергия активации диффузии бора в стали AISI 1050, равная 162,93 кДж ' моль – 1.
Исследование борированной низкоуглеродистой стали 16MnCr5 методом наноиндентирования
Authors: Джалик А. , Еныай Н. , Уджар Н.
Published: January 2024

Исследовано влияние температуры и длительности борирования на нанотвердость и модуль упругости стали 16MnCr5 (российский аналог — сталь 16ХГ). Проведено пакетное борирование в твердой среде при температурах 1123 – 1223 К в течение 2 – 6 ч с использованием реагента Экабор-2 (Экабор-II). Анализ результатов экспериментов показал эффективность метода наноиндентирования для оценки качества и свойств борированного слоя стали 16MnCr5. Установлено, что значения нанотвердости и модуля упругости стали находятся в пределах 587,5 – 3716,4 МПа и 63,3 – 159,7 ГПа соответственно.
Особенности применения диаграммы Шеффлера для прогнозирования структуры и механических свойств жаропрочных сталей с содержанием более 10 % (масс.) Cr
Authors: Беломытцев М. Ю.
Published: January 2024

Представлен обзор наиболее часто применяемых вариантов структурно-химической диаграммы Шеффлера, разработанных разными исследователями. Предложены новый вариант диаграммы Шеффлера и уравнения для расчета Cr- и Ni-эквивалентов, позволяющие корректно прогнозировать содержание d-феррита в структуре жаропрочных ферритно-мартенситных сталей группы ЭП450 – ЭП823 – ЭК181 – ЧС139, содержащих ³ 10 % (масс.) Cr, после горячей деформации и термической обработки. Факторный анализ связи физико-химических и структурных характеристик таких сталей с механическими свойствами позволил получить уравнения, в которых Cr- и Ni-эквиваленты учитываются как один из факторов, определяющих величину их предела текучести.
Мартенситное превращение в аустенитной стали 316L, полученной аддитивной технологией
Authors: Казанцева Наталия Васильевна , Коэмец Ю. Н. , Виноградова Н. И. , Давыдов Д. И. , Ежов И. В.
Published: January 2024

Исследована вероятность протекания мартенситного превращения в стабильной аустенитной стали 316L, полученной с помощью лазерного 3D принтера. Проведена деформация сжатием исследованных образцов при комнатной температуре с высокой скоростью (2 · 10 – 2 c – 1 ). Рассмотрены особенности мартенситного перехода и условия формирования промежуточной фазы эпсилон-мартенсита.
Efektivitas Penggunaan Model Pembelajaran Kooperatif Tipe Jigsaw Terhadap Tanggung Jawab dan Hasil Belajar Mahasiswa Universitas Flores
Authors: Seto Stefania Baptis , Wondo Maria Trisna Sero , Mei Maria Fatima , Meke Konstantinus Denny Pareira , Didin Mohammad
Published: January 2024

Tujuan dari penelitian ini adalah untuk mengetahui sejauh mana pengaruh penggunaan model pembelajaran kooperatif tipe jigsaw terhadap tanggungjawab dan hasil belajar mahasiswa matakuliah statistic dasar. Metode penelitian yang digunakan dalam penelitian ini adalah penelitian kuantitatif deskriptif dengan rancangan Pre-experiment, yaitu One Group Pretest-Posttest Design. Hasil penelitian yang diperoleh Dari data sikap tanggungjawab mahasiswa untuk uji-t diperoleh data  = 2,39 dengan nilai =2,03. Dapat dilihat bahwa nilai 2,03. Maka terima Ha dan tolak uji-t diperoleh data  = 2,39 dengan nilai =2,03. Dapat dilihat bahwa nilai 2,03. Maka terima Ha dan tolak Ho. Sedangkan Hasil uji-t untuk data hasil belajar diperoleh nilai 3,38 dengan nilai  2,03 sehingga diketahui bahwa nilai 2,03 yang artinya terima Ha dan tolak Ho. Sehingga dapat disimpulkan bahwa terdapat pengaruh model pembelajaran tipe jigsaw terhadap tanggungjawab dan hasil belajar mahasiswa pada matakuliah statistik dasar pada materi Distribusi Peluang.
Pengaruh Model Pembelajaran Problem Based Learning (PBL) Terhadap Kemampuan Pemecahan Masalah Matematis Siswa Kelas X SMA
Authors: Susino Selpia Anggraini , Destiniar Destiniar , Sari Eka Fitri Puspa
Published: January 2024

Untuk membantu siswa menciptakan informasi baru yang berguna bagi dirinya, model pembelajaran Problem Based Learning (PBL) menggunakan permasalahan dunia nyata sebagai tahap pertama dalam proses pembelajaran. Hal ini memungkinkan siswa memperoleh pengetahuan dan ide-ide kunci dari materi yang telah dipelajari sebelumnya. Dalam kehidupan nyata, siswa mengatasi kesulitan. Penelitian ini bertujuan untuk mengetahui apakah model pembelajaran Problem Based Learning (PBL) memberikan dampak terhadap kemampuan pemecahan masalah matematis siswa kelas X di SMA Negeri 1 Betung. Penelitian ini menggunakan pendekatan True Experiment Posttest-Only Control Design. Partisipan dalam penelitian ini adalah seluruh siswa kelas X SMA Negeri 1 Betung Semester Gasal. Kedua partisipan dalam penelitian ini berasal dari Kelas esai yang berfungsi sebagai alat ukur penggunaan paradigma pembelajaran PBL (Problem Based Learning) siswa dalam menyelesaikan masalah. Berdasarkan analisis data dapat disimpulkan bahwa model pembelajaran Problem Based Learning (PBL) mempunyai pengaruh terhadap kemampuan pemecahan masalah matematis siswa kelas X di SMA Negeri 1 Betung.
Pengembangan Media Interaktif Cyrcle Arction Materi Unsur Lingkaran Kelas VI SD Muhammadiyah 9 Malang
Authors: Mubarok Ikhtiromal , Mukhlishina Innany , Deviana Tyas
Published: January 2024

Media pembelajaran adalah sebuah alat komunikasi yang memungkinkan guru dan siswa berinteraksi untuk menyampaikan materi pembelajaran. Penelitian ini adalah penelitian jenis pengembangan dengan menggunakan model ADDIE yang terdiri dari lima tahapan. Tahapan dalam penelitian ini meliputi analyze, development, design, implementation, evaluation. Tujuan dari penelitian ini adalah menghasilkan media interaktif Cyrcle Arction yang layak digunakan dalam pembelajaran pada materi unsur lingkaran. Pada pengumupalan data peneliti menggunakan empat Teknik yang meliputi observasi ke sekolah, wawancara kepada guru, angket validasi dan respon pengguna, serta dokumentasi dokumen yang dibutuhkan. Selain itu penelitian ini menggunakan dua teknik analisis data yang meliputi analisis data kuantitatif dan kualitatif. Dalam penelitian ini media interaktif Cyrcle Arction melalui tahapan validasi oleh dua ahli yakni ahli media pembelajaran dan ahli materi. Hasil penelitian pengembangan ini menunjukkan bahwa media interaktif Cyrcle Arction sangat layak untuk digunakan di sekolah dasar. Hal tersebut dibuktikan oleh penilaian dari kedua validasi media pembelajaran dan validasi materi pembelajaran dengan rata-rata presentase 80,5% yang berarti media interaktif Cyrcle Arction sangat layak untuk diimplementasikan. Dengan rincian validasi media pembelajaran 83% dan validasi materi pembelajaran 78%. Sehingga dapat dikatakan bahwa media interaktif Cyrcle Arction sudah sangat layak untuk diimplementasikan di jenjang kelas VI sekolah dasar dan sebagai penunjang guru dalam menyampaikan materi kepada siswa.
Pengembangan Media Pembelajaran Sejarah Indonesia Berbasis Infografis Materi Kekuasaan Kongsi Dagang VOC di SMA Negeri 10 Medan
Authors: Nainggolan Mastrida , Syhaf Nasution Mhd. Ihsan
Published: January 2024

The use of learning media is increasingly being used day by day. History is one example of a subject that feels quite high benefits from the use of learning media. This research aims to develop infographic media in history learning at the high school level. To determine the quality of infographic media as a learning medium in terms of feasibility validation aspects, and to determine the effectiveness of infographic media in learning based on student learning outcomes. This research was carried out at SMA Negeri 10 Medan, with the research sample being class X IPS 1. This research used the R&D method. The data collection technique is in the form of a questionnaire or questionnaire, while the data analysis technique uses percentage calculations. The results of this research indicate that the media developed meets the requirements and is suitable for use as learning media. The validation results of material experts and media experts respectively obtained a score percentage of 98% and 96%. Meanwhile, the results of small group trials showed a score percentage of 84%. Then, the results of large group use trials and effectiveness tests respectively showed a score percentage of 84% and 93%. With these results, it can be concluded that this infographic media is very valid and therefore suitable and effective for use in learning.
Youtube Analytics Channel Visualization Results Using Google Data Studio and Klipfolio
Authors: Zatadini Tangang Qisthina Handayani , Wadjdi Achmad Farid , Wiryana I Made , Zataamani Cahya Maharani Badzlina
Published: January 2024

Demonstrate the power of Big Data Analytics using Google Analytics as a platform work flow. First open the YouTube channel, then start recording of the channel analytics is done here automatically by Google. This data is exported from YouTube Analytics to Google sheets and then is fed to Google Analytics. After analyzes the data, it is now integrated with Google Data Studio and Klipfolio. Google Data Studio makes use of AI (Artificial Intelligence) insights techniques that can generate artificial intelligence and prediction-based report graphs which can be analyzed by the end user. In the future, not only YouTube, but any Google products or Google service data can be fed to Google Analytics and integrated in Google Data Studio for artificial intelligence based on Big Data Analytics.
Peran Guru dalam Mengimplementasikan Kurikulum 2013 di Sekolah
Authors: Neliwati Neliwati , Lestari Inda , Pay Hasibuan M. Khalid , Hasibuan Syarifah Tussuriyani
Published: January 2024

The 2013 curriculum is a pedagogical framework that aims to improve the quality of education in Indonesia by emphasizing the development of students' character, skills and knowledge. The role of teachers in implementing the 2013 Curriculum in schools is crucial in ensuring the success of providing education in accordance with the objectives of the curriculum. This study aims to investigate the role of teachers in the process of implementing the 2013 Curriculum in schools. Qualitative research methods were used by conducting in-depth interviews with a number of teachers in various schools. The results of the analysis show that the teacher's role in implementing the 2013 Curriculum involves several main aspects. However, there are challenges faced by teachers in implementing the 2013 Curriculum, such as limited resources, uneven understanding of the new curriculum, and paradigm changes in learning approaches. Further efforts are needed to support teachers in carrying out their role effectively in implementing the 2013 Curriculum, including more intensive training, strong leadership support at the school level, as well as increasing available resources.
Validitas and Reliabilitas
Authors: Ramadhan Muhammad Fakhri , Siroj Rusydi A. , Afgani Muhammad Win
Published: January 2024

An instrument is a tool that is used as a tool to measure a measuring object or collect data from a variable. An instrument is said to be good if it is valid and reliable. Validity consists of content, construct, empirical validity. The internal validity of dichotomous item scores and polytomous item scores respectively used biserial correlation and product moment correlation. The criteria for an item to be valid or invalid are based on the r-table value. Reliability of combined item consistency for dichotomous item scores and polytomous item scores respectively used KR-20 and Alpha coefficient. The interpretation of the reliability coefficient is a relative interpretation in the sense that there is no absolute limit that indicates what the minimum coefficient number must be achieved so that a measurement can be called reliable. However, the observed test scores provide information on the true scores of individual groups.
Menggali Potensi Pengembangan Literasi Membaca di Sekolah Indonesia Bangkok (SIB)
Authors: Mulyaningsih Titik , Mariana Neni , Ika Puspita Ari Metalin
Published: January 2024

This research aims to explore the potential for developing reading literacy at Sekolah Indonesia Bangkok (SIB). Reading literacy is a critical aspect in the intellectual development of students and is a key factor for academic success. In the context of SIB, this research explores the challenges and opportunities faced by the school in enhancing reading literacy, as well as strategies that can be implemented to improve students' reading skills. The research methodology involves classroom observations, interviews with teachers and school staff, and analysis of documents related to literacy curriculum. The findings of this research identify several hindering factors to reading literacy at SIB, such as limited resources, lack of awareness of the importance of reading literacy, and language challenges for non-native students. Survey data indicates that the reading literacy of students at Sekolah Indonesia Bangkok is 82%, which is considered good, while the reading literacy of students at Sekolah Indonesia Bangkok is 92%, indicating it is very good. However, the research also reveals the potential for developing reading literacy through the implementation of innovative teaching methods, parental involvement, and collaboration with librarians or literacy specialists. Strategic recommendations are also proposed to support SIB's efforts in improving reading literacy, including the development of an integrated literacy curriculum and training for teachers. The results of this research are expected to provide a positive contribution to SIB and the education community in Thailand, as well as to serve as a guide for Indonesian schools abroad in optimizing their reading literacy programs.
Analisis Penggunaan Bahasa Indonesia dalam Jurnalistik pada Media Massa Online
Authors: Suprihatma Suprihatma
Published: January 2024

This writing aims to explain the use of Indonesian in journalism. Various news languages have their own characteristics which are called news language styles. Journalistic language is the language used by journalists (journalists) when writing news articles in the mass media. In practice, there are still some mass media that do not comply with linguistic rules in reporting. There are three possibilities that cause this: First, journalists lack knowledge and understanding of linguistic rules; secondly, journalists pay less attention to the use of good words. and appropriate language rules. Third, Indonesian and journalists do not comply with applicable language rules.This research uses a descriptive qualitative research approach with the data collection techniques used are documentation techniques and hermeneutic techniques. In this research, the validation technique The data source in this research is the main news published in the October 2023 edition. The data collected in this research is in the form of words or sentences so that the research results are aimed at revealing findings in the form of descriptions. The sample in this study was 10 (ten) detik.com news stories.The results of the research by taking ten examples of articles show that there are still errors such as the use of inappropriate words in the news, errors in writing verbs, there is a waste of words, there are inconsistencies in the use of language. However, there are also articles that are good and meet language rules. So it can be concluded that there are still some articles that still need to pay attention to language rules to avoid mistakes in writing news.
Implementasi Penanaman Nilai-Nilai Nasionalisme pada Siswa Sekolah Dasar melalui Pembelajaran IPS Materi Perkembangan Kemerdekaan Indonesia
Authors: Kartini Ayu , Septiani Isfi Aulia , Rustini Tin
Published: January 2024

This article discusses the implementation of instilling nationalist values ​​in elementary school students through social studies learning with a focus on material on the development of Indonesian independence. This research aims to evaluate the effectiveness of learning methods in increasing students' understanding of the development of Indonesian independence and measuring its impact on the development of nationalist values. The research method uses a qualitative approach. The results of the research show that the implementation of nationalist values ​​can be applied by teachers in daily life at school. Effective learning methods can increase students' understanding of the development of Indonesian independence and significantly strengthen their nationalist values. This research provides guidance for educators in designing curricula that promote understanding of national history and shape students' characters with a strong spirit of patriotism and nationalism. Thus, implementing social studies learning with a focus on material on the development of Indonesian independence can play an important role in educating the younger generation who love and respect national values.
Analisis Postur Kerja Karyawan Produksi Sepatu Olahraga Menggunakan Metode Novel Ergonomic Postural Assessment pada Karyawan Ruang Produksi UD. XYZ Gresik
Authors: Dharmaji Rizky , Dahda Said Salim
Published: January 2024

This research is discussed about the analysis of work posture in small-medium industries that produce sports shoes. UD XYZ Gresik is one of the companies in the athletic shoe industry that receives requests for shoes every day. Working hours for 9 hours with a break time of 1 hour. Production targets are sometimes not achieved, causing employees to work overtime. Along with the targets that must be achieved every day, employees in the shoe production room have to sit for a long time during working hours. Long working hours have an impact on musculoskeletal disorders, especially back pain. Working posture (sitting position) and length of work are factors that affect physical ability which continues to decline. Thus resulting in absenteeism and economic losses caused by a decrease in work capacity and a decrease in employee productivity. Novel Ergonomic Postural Assessment as an ergonomics method used as a tool to analyze the risk of ergonomics and working posture in the upper body to reduce the risk of musculoskeletal injuries in the production process. The results showed that the value of the first working posture was 6 (work posture needs further research and action is needed in the near future). For the second working posture, the final NERPA score was 7 (work posture needs to be checked further and action taken as soon as possible). Both of these scores require improvement due to the risk of severe musculoskeletal disorders.