bluuebunny/crossref_metadata_2025 huggingface dataset:
Enhancing supply chain efficiency through blockchain technology: A centralized multidistributor and multi-retailer approach
Authors: Motla Ritu , Saxena Neha , Kumar Ashok , Sana Shib
Published: July 2024

Blockchain technology has emerged as a transformative solution for supply
chain management, offering a myriad of benefits to the industry. This paper
explores the potential benefits of incorporating blockchain technology into
supply chain management to enhance security and trustworthiness. We present
a centralized supply chain system comprising a single manufacturer, multiple
distributors, and multiple retailers. Geographical divisions have been
assumed among distributors, each catering to a specific area with its own
set of retailers. Mathematical expressions are developed to determine the
optimal replenishment policies for the manufacturer, distributors, and
retailers. Numerical examples are provided to illustrate the results, and
sensitivity analysis is conducted to assess the model's responsiveness to
parameter variations. Finally, managerial insights are discussed, shedding
light on the implications and advantages of the proposed blockchainbased
supply chain management system.
Lifetime medical spending attributed to incident type 2 diabetes in Medicare beneficiaries: a longitudinal study using 1999-2019 national Medicare claims.
Authors: Shao Yixue , Wang Yu , Bigman Elizabeth , Imperatore Giuseppina , Holliday Christopher , Zhang Ping
Published: July 2024

Objective:

To estimate lifetime incremental medical spending attributed to incident type 2 diabetes (T2D) among Medicare beneficiaries by age of diagnosis, sex, and race/ethnicity.

Research Design and Methods:

We used the 1999-2019 100% Medicare fee-for-service claims database to identify a cohort of beneficiaries with newly diagnosed T2D in 2001-2003 using International Classification of Diseases codes. We matched this cohort with a non-diabetes cohort using a propensity score method and then followed the two cohorts until death, disenrollment, or end of 2019. Lifetime medical spending for each cohort was the sum of expected annual spending, a product of actual annual spending multiplied by the annual survival rate, from the age of T2D diagnosis to death. Lifetime incremental medical spending was calculated as the difference in lifetime medical spending between the two cohorts. All spending was standardized to 2019 U.S. dollars.

Results:

Medicare beneficiaries with newly diagnosed T2D, despite having a shorter life expectancy, accumulated 36%-40% higher in lifetime medical spending compared to a comparable group without diabetes. Lifetime incremental medical spending ranged from $16,115 to $122,146 depending on diagnosis age, sex, and race/ethnicity, declining with age at diagnosis, and being highest for Asian/Pacific Islander and non-Hispanic Black beneficiaries.

Conclusions:

The large lifetime incremental medical spending associated with incident T2D underscores the need for preventing T2D among Medicare beneficiaries. Our results could be used to estimate the potential financial benefit of T2D prevention programs, both overall and among subgroups of beneficiaries.
In Silico Analysis of Single Nucleotide Polymorphisms Related to Susceptibility and Severity in COVID-19 Patients
Authors: Ariani Yulia , Muhiardi Indra , Shabihah Farah
Published: July 2024

Coronavirus disease 2019 (COVID-19) is a respiratory tract symptoms caused by the infection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which exhibits a wide range of symptoms, from mild to severe. Genetic factors play a significant role in determining severity of the symptoms. Specifically, certain variants within genes can predispose individuals to experience severe COVID-19 symptoms. Therefore, this study aims to analyze these variants, also known as single nucleotide polymorphisms (SNP) within the ABO, TMPRSS2, ACE2, PAI-1, and IFNAR2 genes. The in silico method was used based on internet sites and software to identify the level of SNP pathogenicity, stability, visualization of 3-dimensional protein structures, and figures of amino acid changes as well as to analyze the pathomechanism of variants that lead to susceptibility or severe symptoms of COVID-19 patients. The results showed that the presence of SNP influences changes in the structure or stability of proteins, and the 3-dimensional structure of all proteins affected by SNP was successfully visualized. Based on pathomechanism analysis and amino acid structure of F216I and P74S protein ABO residues, V160M protein TMPRSS2, I468V, and K26R protein ACE2 are associated with susceptibility of the patient to SARS-CoV-2 infection. In addition, the results of the in silico analysis showed that A15T residues of PAI-1 protein, F10V, and F8S IFNAR2 protein were included with pathomechanisms leading to severe symptoms of COVID-19.
Developing a Community of Practice through Social Media to Facilitate Continuing Education of Medical Practitioners in Medical Research
Authors: Fauzia Lathifa , Pramudita Arcita Hanjani , Adhyatma Galih Prakasa , Hartono Andyta Nalaresi , Eryani Ika Septiana , Isma Talita Zata
Published: July 2024

The emergence of COVID-19 has highlighted the significance of research in medical practice, particularly in low- and middle-income countries (LMICs) like Indonesia, where healthcare challenges are prominent. Therefore, this study introduces Arcandcoresearch, a non-institutional-based virtual Community of Practice (vCoP), aiming to address the research capacity gaps among medical practitioners. This study aimed to understand the possibility of using several social media platforms (Instagram, YouTube, and WhatsApp) in the vCoP for continuing medical education of general practitioners regarding medical research. Through Instagram, the project has gained substantial follower growth (1003 followers within 19 months); most were 25-34 years old (69%). Within six months, 124 medical practitioners participated in five sharing sessions via Zoom meetings. All participants who completed the feedback form were satisfied with the content delivery of the sessions. The recorded sharing sessions were then uploaded to the YouTube channel. It already had 150 subscribers until September 2023, with 397 viewers for the videos uploaded in 2022. We facilitated participants to discuss any concerns related to medical research in the WhatsApp group, which already had 24 participants. These preliminary results highlight the potential of Arcandcoresearch to impact medical research culture positively in LMICs. The next steps should be conducting thorough program evaluations and developing strategies for sustaining virtual engagement.
The Effect of Tuna Extract on Periarticular Tissue Catalase Activity and Malondialdehyde Levels in Animal Models of Adjuvant Arthritis
Authors: Handajani Fitri , Sukmana Judya
Published: July 2024

Tuna contains vitamins, minerals, amino acids, and fatty acids, which play a role in preventing oxidative stress. The pathophysiology of rheumatoid arthritis is often associated with oxidative stress due to increased ROS production. Adjuvant arthritis experimental animals are widely used for research on rheumatoid arthritis. This study aims to determine the effect of tuna fish extract on plasma malondialdehyde (MDA) levels and periarticular tissue catalase in adjuvant arthritis (AA) experimental animals with AA. The 24 experimental animals were divided into 3 groups, group 1, eight experimental animals without treatment; group 2, eight experimental animals AA-induced complete freund adjuvant (CFA); group 3, eight experimental animals AA treated with Tuna fish extract therapy, and at the end of the study the animals were sacrificed and examined for plasma MDA and periarticular tissue catalase levels. The results of the ANOVA statistical test showed a significant increase in periarticular tissue catalase activity (p=0.001) between the AA group and the treatment group. There was a considerable decrease in periarticular tissue MDA levels (p=0.001) between the adjuvant arthritis group and the treatment group with p value = 0.001. The Spearman correlation test between MDA levels and catalase activity shows -0.335, indicating an adequate and inverse correlation. The administration of tuna extract can prevent oxidative stress. It can be shown that increasing the antioxidant activity of catalase and reducing lipid peroxidation is measured by examining MDA levels.
Character Education TPACK Skills to Emergency Remote Learning During The Covid-19 Pandemic
Authors: Widyaningrum Agnes , Yovita Mumpuni Hartarini
Published: July 2024

The transition of education to an online environment due to the COVID-19 pandemic presents new challenges for teachers and students. On the other hand, there is only a little research on developing PCK related to character education. Pedagogical Content Knowledge (TPACK) technology solves today's online learning problems. This research aims to analyze Character Education TPACK skills for emergency distance learning during the COVID-19 pandemic. This research is a mixed methods research with a quantitative approach and is supported qualitatively. The population and sample are 200 teachers. The data collection method uses a questionnaire. The research instrument was a questionnaire consisting of 33 statements and 5 open questions, which were distributed. Data were examined numerically and subjectively using component analysis and teacher explanatory descriptions. Data analysis techniques use quantitative statistics. The research results show that the mastery of TPACK Character Education in online classes uses different learning media and instructional platforms. This research implies that in the future, teachers can increase the use of teaching materials, media, methods and learning models for appropriate subjects and follow TPACK integrated with character education to create an active, fun and meaningful learning atmosphere.
Media Pembelajaran Interaktif Berbasis Teknologi Bagi Mahasiswa PGSD Dalam Pembelajaran PPKN Sekolah Dasar
Authors: Elindasari Dhevi Ayu , Woro Sri Hastuti  , Setiawan Edi Wibowo  , Suyitno
Published: July 2024

Pengembangan media dilaksanakan karena kurangnya penggunaan sebuah media pembelajaran interaktif teknologi di dalam proses pembelajaran. Pengembangan yang dilakukan bertujuan untuk mengembangkan sebuah media pembelajaran yang interaktif dengan bantuan teknologi dalam pembelajaran Pendidikan Kewarganegaraan (PPKn), khususnya untuk mahasiswa Pendidikan Guru Sekolah Dasar yang berada di semester 4. Penelitian yang dilakukan menggunakan metode pengembangan ADDIE (Analysis, Design, Development, Implementation, Evaluation). Akan tetapi, dalam penelitian ini, peneliti hanya mencapai tahap pengembangan (Development) dikarenakan tujuan utamanya adalah menghasilkan sebuah media pembelajaran yang dinilai baik oleh validator ahli. Validitas media pembelajaran diukur menggunakan lembar penilaian dari para ahli. Teknik analisis menggunakan analisis kuantitatif dan kualitatif. Hasil penelitian menunjukkan bahwa produk ini telah divalidasi oleh ahli materi dan ahli media, dengan skor mencapai 88,5%. Skor ini termasuk dalam kategori sangat layak, mengingat bahwa presentase hasil validasi berada dalam rentang 81-100%. Dengan demikian, media pembelajaran interaktif berbasis teknologi ini dianggap valid dan sangat layak untuk digunakan dalam proses pembelajaran. Implikasi penelitian ini yaitu penggunaan media pembelajaran interaktif berbasis teknologi menjadi solusi yang efektif dalam mendukung pembelajaran mahasiswa.
Pemanfaatan Media Video pada Model Pembelajaran Problem Based Learning
Authors: Ardiansyah  , Meyko Panigoro  , Nurul Maulida Alwi
Published: July 2024

Kemampuan berpikir yang rendah dari siswa dalam menganalisa isu permasalahan serta kurangnya pemanfaatan media pembelajaran dalam proses pembelajaran menggunakan model pembelajaran berbasis masalah sehingga menyebabkan capaian pembelajaran kurang maksimal. Tujuan penelitian ini untuk menganalisis penerapan media video dalam model pembelajaran PBL terhadap pemecahan masalah. Pre-experimental design dengan menggunakan pretest-posttest design merupakan pendekatan yang digunakan dalam penelitian ini. Populasi dan sekaligus sampel penelitian ini adalah siswa kelas VII yang berjumlah 30 orang. Teknik pengumpulan data dalam penelitian ini menggunakan observasi langsung, dokumentasi dan alat instrumen tes. Analisis data menggunakan SPSS 26 untuk menganalisis skor mean sebelum dan sesudah pengujian, hasil uji normalitas, homogenitas serta hasil uji T sampel tunggal. Hasil uji-T one sampel, penggunaan video pembelajaran dalam model pembelajaran berbasis masalah kelas pra eksperimen berdampak pada kemampuan siswa dalam memecahkan masalah. Nilai signifikansi yang kurang dari 0,05 menunjukkan penggunaan video berdampak pada kemampuan siswa dalam memecahkan masalah. Implikasi penelitian ini bahwa penggunaan media video dalam pendekatan pembelajaran PBL dapat membantu dalam pemecahan masalah.
Teaching Materials for Reading in a Professional Context to Improve the Reading Skills of English Education Program Students
Authors: Sari Ambar Wulan , Amalia Nadra , Emelia Tengku Winona , Arifin Muhammad
Published: July 2024

Students expressed difficulty in dealing with unfamiliar vocabulary and complex sentence structures, which hindered their ability to identify important information and understand the message conveyed in the text. This research aims to develop a teaching tool called Reading for Professional Context that is appropriate to the cultural environment to improve the reading skills of students majoring in English education. This type of research is developed with a research design using the Graves model. The research subjects were two subject matter experts, two teaching materials experts, and two language experts. The trial subjects involved 22 students. Data collection methods use observation, interviews, and questionnaires. Data collection instruments with questionnaire sheets. Data analysis techniques use qualitative and quantitative analysis. The linear regression test is used to see the effect of teaching materials on reading skills. The results, namely the expert assessment, show that the product has excellent qualifications. The results of the linear regression test show that the use of "Reading for Professional Context" teaching materials significantly positively influences students' reading skills. It was concluded that the "Reading for Professional Context" teaching materials could improve students' reading skills. The findings from this research provide valuable insights for English language educators and curriculum developers in designing effective reading teaching materials to improve students' abilities in professional contexts.
Perforated Stone Objects in the Oceania Collection of the Museum of Ethnography in Budapest
Authors: Péntek Attila
Published: July 2024

The author of this paper studied 59 perforated stone objects in the Oceania collection of the Museum of Ethnography in Budapest. The items stem from the former British and German New Guinea colonies. For most objects, detailed information on the exact place of origin is not available. Therefore, the aim of the present review could be nothing more than a more or less complete description of the objects and an approximate assessment based on the abundant ethnographic literature available on the territory of Papua New Guinea. Since the studied objects are primarily club heads made of stone, it is, therefore, necessary to clarify the technological issues related to the manufacturing of these stones, their typological classification, and their morphometric measurements. Explanatory comments of any kind by the author and the free translation of quotations in the German language are enclosed in brackets. Each artefact in the text will be referred to by its inventory number (inv. no.). In Fig. 1, a sketch map of Papua New Guinea with some of the locations mentioned in the text can be seen.
Refletindo sobre a sociedade Amazônica no século XX em A caligrafia de Deus, de Marcio Souza e Aruanda-Banho de Cheiro, de Eneida de Moraes.
Authors: Da Silva Mirlene Paula , Castro Alves Lorena de Fátima , Martins de Souza César
Published: July 2024

Este estudo busca analisar e compreender aspectos sociais, culturais e históricos emergentes na região Amazônica, no século XX, por meio de um diálogo entre a literatura e a história para o conhecimento de elementos de temporalidades passadas, nas literaturas O velho curtume do bairro do livro A caligrafia de Deus (2007), de Marcio Souza e Aruanda -banho de Cheiro (1989), de Eneida de Moraes. Assim sendo, se desenvolve por meio de uma abordagem qualitativa com mapeamento de textos literários, científicos e teóricos, além de técnica de coleta e análise de conteúdo destes. Apresentando cenários de Manaus e Belém, a análise das obras em diálogo com o aporte teórico possibilitou-nos visualizar e refletir sobre os elementos culturais, sociais e históricos emergentes na região, os sujeitos amazônicos, e aspectos que impactam direta e indiretamente seus cotidianos sociais, como se organizavam e viviam. Como uma pesquisa que ainda se encontra em desenvolvimento, faz-se relevante o uso de outros instrumentos metodológicos e ferramentas de análise, e ainda, destaca-se a significância de pesquisas futuras sobre os assuntos aqui abordados e de outros correlacionados.
Grupo de Pesquisa Philos Sophias: devires matemáticos de corpos dançantes
Authors: Delfim Cruz Daniela , Da Silva Voss Dulce Mari , Gomes de Almeida Clarice
Published: July 2024

O Grupo de Pesquisa Philos Sophias alinhado às filosofias da diferença e ao projeto da decolonialidade pretende evidenciar que essa produção pode se realizar em constante atualização de pensamentos, ações e territórios. As filosofias de Deleuze e Guattari e Espinosa inspiram a criação e operacionalização de planos de composição em que se entrecruzam estudos e pesquisas do coletivo docente e se desdobram nas intervenções pedagógicas nas escolas de educação básica. Como o projeto desenvolvido na escola de Aceguá (RS) onde acontece a docência no ensino de matemática por meio de rodas de danças circulares. É assim que as experimentações coletivas produzem afecções e intensificam afetos. O que leva à compreensão das redes colaborativas como agenciamentos movidos em ritornelo sempre prontos a se desterritorializar em devires outros de uma arte de diferir de descolonizar que torna possível novas paisagens existenciais.
Educación emocional en la formación del profesorado de Chile
Authors: Lagos San Martín Nelly
Published: July 2024

Este trabajo se enfoca en la importancia de la incorporación de la educación emocional en la formación inicial de docentes en Chile, la cual puede realizarse mediante dos modalidades complementarias: una transversal y otra integrada en asignaturas del currículo. Para ello, se examinaron 18 modelos educativos y 14 mallas curriculares de universidades estatales que forman docentes de educación básica con el objetivo de identificar aquellas instituciones que incorporan la educación emocional como parte relevante de los futuros docentes. Los resultados muestran que dicho tema es mencionado explícitamente en todos los modelos educativos de las universidades analizadas y que, salvo una excepción, todas ellas incluyen al menos una asignatura relacionada con la educación emocional en sus mallas curriculares. Estas asignaturas se agrupan en tres categorías: 1) aquellas directamente vinculadas al desarrollo personal y la educación emocional, 2) asignaturas orientadas a la formación de habilidades y competencias sociales, y 3) asignaturas de orientación educacional, cuyos contenidos temáticos coinciden con los de la educación emocional. Estos resultados sugieren que existe una tendencia a incluir asignaturas que contribuyan a la formación integral del alumnado, aunque en muchas de ellas no se observa una progresión clara que garantice la continuidad, gradualidad y sistematicidad necesarias para una educación emocional efectiva. Por eso, se considera que aún queda un desafío pendiente para abordar esta deficiencia en la formación docente.
Comparative Analysis of the Hiwalah Fatwa between Indonesia and Malaysia
Authors: Risdayani Risdayani , Bachtiar Muhammad Harsya , Ahyarudin Ahyarudin
Published: July 2024

The objective of this study is to examine the differences and similarities in the application and interpretation of the fatwa on hawalah contracts between the Indonesian Ulema Council and the Malaysian Fatwa Committee. The research methodology employed in this study is qualitative research, employing a comparative approach. Following the collection of data from fatwas, books, and other literature, the data is subjected to inductive analysis in order to yield the results of this study. The analysis of similarities and differences, as well as compatibility with Islamic law, conducted between the DSN-MUI fatwa and the Regional Mufti of Biscotuan's fatwa on hawalah has led to the following conclusions: DSN Fatwa No. 12/DSN-MUI/IV/2000: The aforementioned fatwa is in accordance with Shariah principles as it fulfils the elements and conditions of hawalah without an increase in rent or profit. Fatwa No. 58/DSN-MUI/V/2007: The aforementioned instrument is not fully compliant with Shariah principles because it allows for the imposition of fees in the context of a pending hawalah transaction, which may potentially lead to riba. In contrast, the Mufti of Persekutuan Province has issued a fatwa that is compatible with Shariah principles. This fatwa ensures that hawala transactions are only between two parties with a debt-to-debt relationship and that no fees are charged. Consequently, the instrument avoids the imposition of usury. In this context, the fatwa of the Pijapat Persekutuan Mufti is more rigorous in maintaining compliance with Sharia principles, particularly in preventing usury. Although Islamic financial institutions recognise hawalah as a practical necessity, they must exercise caution to ensure that they do not contravene the fundamental Shariah principle of prohibiting usury.
Islamic-Nuanced Mathematics Teaching Material: An Alternative Tool to Improve Students' Understanding on Integers
Authors: Rauzah Rauzah , Vitoria Linda
Published: July 2024

The acquisition of mathematical proficiency among university students, particularly within the Department of Elementary Education at Universitas Syiah Kuala, Aceh – Indonesia, often presents challenges. Integrating religious undertones into mathematics pedagogy represents a constructive approach to engender student engagement and augment comprehension. Such integration affords students a familiar contextual backdrop, fostering a more meaningful learning milieu. This article delineates the development of an instructional resource imbued with Islamic motifs, specifically addressing concepts related to integers. The study cohort comprises 115 second-year students enrolled in the Department of Elementary Education at Universitas Syiah Kuala. Methodological stages encompassed preliminary inquiry, developmental endeavors, and evaluative assessments. Research instrumentation encompassed validation protocols for assessing integrity and observation metrics capturing students' instructional engagements. Additionally, assessments, accompanied by post-instructional questionnaires, were administered to gauge student perceptions. Qualitative data analyses were conducted, evaluating the product's viability across dimensions of validity, applicability, and efficacy. Iterative revisions were undertaken during the instructional resource's refinement process. Outcomes underscore the aptness of the Islamic-imbued mathematics instructional material for second-year students within the elementary education domain. The implications of these findings underscore the advantages conferred by familiar-contextualized learning materials in facilitating students' mathematical comprehension.
Banyuwangi Bamboo Puppets from an Ethnomathematics Perspective
Authors: Mukarromah Nur Azizah , Hariastuti Rachmaniah Mirza
Published: July 2024

Ethnomathematics denotes mathematical phenomena entrenched within cultural contexts. Bamboo puppetry emerges as an intriguing cultural enclave ripe for investigation, distinguished by unique material composition, crafting techniques, and character portrayal in contrast to conventional puppetry forms. An exploratory inquiry unfolded within the precincts of Gintangan village, Banyuwangi, facilitated by a selective triad of informants. Employing qualitative methodologies, data accrual entailed a blended approach integrating observational scrutiny and in-depth interviews. Insights gleaned from the investigation unveil that the craftsmanship of bamboo puppets entails a gamut of mathematical undertakings, encompassing enumeration, categorization, measurement, and strategic planning. Furthermore, the genesis of bamboo puppetry production intricately intertwines with ethnomathematical dimensions, elucidating the utilization of numerical operations, geometric principles, statistical analysis, and probability considerations. These findings portend the transformative potential to transmute into a bespoke educational resource for contextualized mathematics pedagogy, leveraging the craft of bamboo puppetry as a conduit for experiential learning.
Performa Chatbot AI Sebagai Asisten Digital dI PT TELKOM WITEL KARAWANG
Authors: Joko Pramono M.Fadhlul Rahman Prabowo
Published: July 2024

AbstrakDalam sebuah perusahaan, pekerjaan satu divisi akan mempengaruhi divisi yang lainnya. Maka, agar pekerjaan pada suatu perusahaan dapat berjalan dengan baik, semua divisi yang terlibat harus terintegrasi dengan baik juga. Salah satu faktor yang dapat mendukung koordinasi antara divisi dapat berjalan dengan baik adalah dengan menggunakan chatbot yang berbasis AI sebagai asisten digital. Penggunaan chatbot berbasis AI sebagai asisten digital dapat membuat komunikasi antara divisi yang ada di perusahaan menjadi lebih efisien. Karena chatbot yang digunakan dapat terintegrasi dengan database, chatbot juga dapat menjadi media distribusi data antar divisi di perusahaan.
Rancang Bangun Alat Pemilah Biji Kopi Berdasarkan Kualitas Buah Menggunakan Sensor TCS3200
Authors: Pratama Bayu rizki , Sembiring Jaka persada
Published: July 2024

Coffee fruit is a trade commodity that has been known for centuries. Coffee fruit can be processed into a delicious drink, but when coffee farmers harvest at the same time, farmers combine immature and ripe coffee fruit in one container, this results in a decrease in the quality of the taste. significant. In this research, the fuzzy Sugeno method was used to determine the classification of ripe, semi-ripe and ripe coffee fruit. This tool uses an Arduino Uno Atmega328 microcontroller to control the TCS3200 color sensor as a reader for the color of the coffee fruit and uses a servo to sort the coffee fruit according to quality. In testing the automatic control system for separating coffee beans based on color using the TCS3200 Color Sensor, it was successful in directing the coffee beans to a predetermined container.
Keywords— TCS3200 Sensor, Arduino ATmega328P,Coffee,Color,Quality,Fuzzy sugeno.
Pengendali Suhu Fermentasi Tempe Berbasis NodeMCU Dan Sensor DHT 22
Authors: Setiawan Arief , Apriani Yosi , Saleh Zulkifli , Ardianto Feby
Published: July 2024

Bagi pengusaha tempe, kontrol suhu sangat penting karena, secara historis, fermentasi kedelai menjadi tempe sering kali mengalami kegagalan, yang dapat menurunkan hasil produksi tempe karena cuaca dan suhu yang tidak mendukung. Perangkat yang memiliki setpoint suhu 33°C, 35°C, atau 37°C diperlukan untuk mengatur suhu dalam proses fermentasi tempe dalam upaya menjaga stabilitas suhu. Utilitas ini beroperasi sesuai dengan panduan Nodemcu ESP32. Lampu akan menyala jika suhu di bawah titik setel; jika di atas titik setel, lampu akan mati dan kipas akan menyala. Aplikasi Blynk memungkinkan untuk menampilkan data kontrol suhu, yang memfasilitasi pemahaman pengguna secara otomatis tentang proses fermentasi. Tujuan dari penelitian ini adalah untuk merancang alat pengatur suhu untuk proses fermentasi tempe yang dilengkapi dengan sensor DHT22 dan modul Nodemcu ESP 32. Penelitian ini menggunakan metodologi yang dimulai dengan tahap berikut yaitu perancangan dan pembuatan alat, dilanjutkan dengan pengujian alat,dan pengolahan hasil penelitian. Hasil percobaan kontrol suhu menunjukkan bahwa proses fermentasi tempe dapat berhasil dikontrol pada beberapa setpoint, termasuk 33 °C setelah 25 jam jamur bisa tumbuh,  dan konsumsi daya nyala lampu 19 jam yaitu 15976,6 Wh.
Rumah Pintar dengan Lampu Kontrol Suara Menggunakan Arduino Uno R3
Authors: Mamahit Calvin
Published: July 2024

Science and technological advancements have influenced human existence favorably, which has now reached the era of electric voice commands. An intelligent home management system enables humans to control their home's electrical devices, such as lights, using simple voice commands, reducing the need to move around to turn equipment on or off. When users of indoor lighting run the system or switch on the lights by using sound waves, the sound sensor delivers an input signal to the microcontroller, which is then processed with the microcontroller's output in the form of a voltage to turn on the load. The system will operate when the FC-04 sound sensor receives sound input (sound code). The FC-04 sound sensor can only generate a digital output signal in the form of a clap with a value of 1 and 0, which is then collected on Arduino with a value of more than 400 million by the software uploaded to be used as a 5-volt output to switch on or off the lights. This is because when turning on the lights from a specific distance, numerous things might affect them, including the sensitivity of the sound sensor and noise levels in the surrounding area.
 
Intisari — Kemajuan ilmu pengetahuan dan teknologi telah memberikan pengaruh positif terhadap keberadaan manusia, yang kini telah mencapai era perintah suara listrik. Sistem manajemen rumah yang cerdas memungkinkan manusia mengontrol perangkat listrik di rumah mereka, seperti lampu, menggunakan perintah suara sederhana, sehingga mengurangi kebutuhan untuk bergerak untuk menyalakan atau mematikan peralatan. Ketika pengguna penerangan dalam ruangan menjalankan sistem atau menyalakan lampu dengan menggunakan gelombang suara, maka sensor suara akan mengirimkan sinyal input ke mikrokontroler, yang kemudian diproses dengan output mikrokontroler berupa tegangan untuk menghidupkan beban. Sistem akan beroperasi ketika sensor suara FC-04 menerima input suara (kode suara). Sensor suara FC-04 hanya dapat menghasilkan sinyal keluaran digital berupa tepukan dengan nilai 1 dan 0, yang kemudian dikumpulkan di Arduino dengan nilai lebih dari 400 juta melalui software yang diunggah untuk digunakan sebagai Output 5 volt untuk menghidupkan atau mematikan lampu. Pasalnya, saat menyalakan lampu dari jarak tertentu, banyak hal yang mungkin mempengaruhinya, termasuk sensitivitas sensor suara dan tingkat kebisingan di sekitar.
Power Analysis of 3 Phase Induction Motor Drive Conveyor 06 at PT. Mitrabara Adiperdana
Authors: Abdul muis prasetia  , Linda Sartika  , Hironimus
Published: July 2024

Conveyor belt is a material handling tool that is widely used in minning industry. The tool consists of belts or tires made of various types of materials that are resistant to the transportation of solid objects or coal. In order to drive the conveyor, a 3-phase induction motor is needed. PT. Mitrabara Adiperdana used induction motors on each conveyor including conveyor 06. With consumer demand, motors continue to operate to drive conveyors in transporting coal on stockpiles filling barges. The number of berges filled makes the motor continue to operate to move the conveyor for up to one full day. Therefor, it is necessary to analyze the power of consumption and performance level of the motor on conveyor 06, because if there is demage to the motor, the production process on conveyor will be hampered. From the primary data obtained in the field by making direct measurements and obtained the calculation results, the power value is 35.058 Kw when the conveyor is not loaded and 81.80 kw when the conveyor is loaded. With the result of power used when loaded, the calculation of efficiency is 69,45%. Whith this value, the conveyor motor 06 operates less effectively. It is stated be effective when the efficiency value is between 80% and 100% of the effeciency value on motor rating rate.
Perancangan Sistem Deteksi Objek Pada Robot Transporter Menggunakan Metode Darknet YOLOv8
Authors: Yudha Yudha Febrian , Aditya Aditya Ari Yudha , Rasyid Rasyid Ammary Yahya , Indra Naufal Indra Ardhana , Melati Melati Wangi Windari
Published: July 2024

Perkembangan teknologi robotika, khususnya pada robot transporter dapat meningkatkankualitas maupun kuantitas produksi berbagai pabrik. Robot transporter merupakan salah satu jenisrobot yang bertujuan untuk mengambil benda dan memindahkannya ke tempat lain. Pada penelitianini, metode darknet YOLOv8 diterapkan pada robot transporter untuk memberikan kemudahan dalamproses pelatihan dan deteksi objek. Algoritma YOLO (You Only Look Once) merupakan salah satumetode dalam bidang deep learning yang saat ini sangat populer dalam pendeteksian objek, danmemungkinkan deteksi objek dengan tingkat keakuratan tinggi. Dalam penelitian ini, ESP32 CAMdigunakan sebagai kamera deteksi objek dan modul WiFi pada robot transporter. Tujuan utama dalampenelitian ini adalah mengatasi tantangan deteksi objek dalam situasi dinamis, seperti perubahan objekdi sekitar robot transporter. Dengan demikian, diharapkan robot dapat merespons dengan cepatterhadap perubahan lingkungan, dan meningkatkan efisiensi tugas transportasi.
L1-Minimization Sinyal Pergerakan Doppler Objek Untuk Pemulihan Sinyal Pada Radio Detection And Ranging Array
Authors: Puspa Kurniasari  , Iwan Pahendra Anto Saputra  , Melia Sari
Published: July 2024

Sinyal yang ditransmisikan dari suatu pemancar radio detection and ranging adalah berupa gelombang elektromagnetik yang diarahkan ke arah objek dan memiliki cakupan wilayah sebaran gelombang untuk mendeteksi objek melalui sinyal pantulan dari objek ke bagian penerima radio detection and ranging. Media wireless yang digunakan untuk transmisi sinyal ke objek dipengaruhi gangguan dari derau sehingga sinyal terima pantulan objek tidak maksimal dalam penerimaan di radio detection and ranging receiver. Pergerakan objek dan perpindahan posisi objek menghasilkan respon atau tanggapan dari radio detection and ranging. Pada penelitian ini, sinyal pergerakan doppler objek dioptimasi melalui pemulihan L1-minimization dan pemulihan sinyal terima dari perangkat radio detection and ranging array berhasil dilakukan. Pengujian perangkat array juga berhasil dilakukan terhadap objek di jarak satu meter, dua meter dan tiga meter dengan masing-masing pergerakan objek ke arah kanan dan ke kiri dari posisi awal objek terhadap perangkat array sejauh 50 cm dan 100 cm. Array pada perangkat transceiver radio detection and ranging diletakkan sejajar menghadap objek. Hasil pengukuran kinerja pemulihan sinyal menggunakan L1-minimization dan estimasi sinyal menghasilkan amplitudo tegangan sinyal hasil paling baik yaitu 359725.8655 V pada jarak 50 cm pergerakan objek ke arah kanan perangkat array sedangkan mean square error yang dihasilkan 1.653 % pada rasio signal to noise 226773.8723 dB serta 290737.6723 dB sebagai hasil dari rasio peak signal to noise.
Studi Pengaruh Pembangkit Listrik Tenaga Bayu Kecepatan Variabel Yang Berbasis SCIG Terhadap Tegangan Dan Rugi - Rugi Daya Sistem Distribusi
Authors: Muhammad Wisnu Satriyo Agni
Published: July 2024

Pembangkit listrik tenaga angin adalah salah satu jenis pembangkit listrik yang menggunakan energi angin sebagai sumber utama untuk menghasilkan energi listrik. Penelitian ini menganalisis pengaruh pembangkit listrik tenaga angin terhadap tegangan dan rugi – rugi daya pada kondisi beban ringan, beban puncak, dan beban rata – rata pada sistem distribusi. Data yang akan digunakan adalah data sistem distribusi 33 bus dan data jaringan sistem distribusi. Kemudian secara menyeluruh mengenai perhitungan dari besar tegangan dan rugi – rugi daya sistem distribusi menggunakan software MATLAB versi R2016A. Penelitian ini memperoleh hasil tegangan terendah pada sistem distribusi 33 bus terjadi pada bus 18, sehingga bus tersebut yang akan dihubungkan PLTB. Dengan meningkatnya daya mekanik turbin, profil tegangan sistem untuk berbagai kondisi beban semakin baik. Pada sistem distribusi sebelum terhubung PLTB profil tegangan terbaik pada beban ringan sebesar 0,9378 pu dan profil tegangan terburuk pada beban puncak sebesar 0,8671 pu. Setelah sistem terhubung PLTB pada beban ringan menjadi 0, 9466 pu, beban puncak menjadi 0,8771 pu, dan beban rata – rata menjadi 0,9131 pu. Dengan terhubungnya sistem dengan PLTB rugi – rugi daya pada beban ringan berkurang sampai dengan 184,8918 kW (Pm = 2,0200 pu), beban puncak berkurang sampai dengan 807,7297 kW (Pm = 3,6880 pu), dan beban rata – rata berkurang sampai dengan 437,8619 kW (Pm = 2,7709 pu).
Analisis Setting Over Current Relay Satu Fasa Ke Tanah Sistem 20 Kv Pada Recloser B 21 Penyulang Salju Gardu Induk Teluk Betung Berbasis Etap
Authors: SON JECKSON
Published: July 2024

Gangguan jaringan sistem 20 kV selalu berpotensi terjadi dan penyebab yang paling sering menyebabkan gangguan adalah gangguan hubung singkat 3 fasa, 2 fasa, 2 fasa ke tanah dan 1 fasa ketanah. Dalam mengamankan jaringan dari gangguan-gangguan tersebut maka dibutuhkan peralatan proteksi pada jaringan sistem 20 kV yang sensitif, selektif, cepat, andal dan sederhana. Relai yang paling sering bekerja pada recloser B 21 adalah Over Current Relay (OCR) satu fasa ke tanah. Perhitungan dan Analisa waktu kerja OCR satu fasa ke tanah pada recloser B 21 penyulang Salju dilakukan pada outgoing dan incoming serta waktu kerja recloser. Setelah data-data tersebut didapatkan, dilanjutkan dengan menganalisa koordinasi setting OCR satu fasa ketanah antara recloser B 21 dengan outgoing penyulang Salju mengguankan software Etap. Teknik pengambilan data dilakukan dengan metode studi pustaka, literatur, wawancara, dan pemodelan sistem. Hasil perhitungan arus gangguan hubung singkat satu fasa tanah pada 1% jaringan atau 1.88 km sebesar 288.396 A, sedangkan arus gangguan hubung singkat satu fasa ke tanah yang mempunyai nilai minimum terletak pada 100% jaringan atau 18.8 km sebesar 202.65 A. Hasil perhitungan pada OCR satu fasa ke tanah incoming tms = 0.26, t = 0.7 detik, outgoing tms = 0.1, t = 0.3 detik dan recloser tms = 0.062, t = 0.2 detik dan setting eksisting dari PLN adalah incoming tms = 0.37, t = 1 detik, outgoing tms = 0.047, t = 0.15 detik dan recloser tms = 0.03, t = 0.09 detik. Dari hasil pengamatan data yang diperoleh, direkomendasikan untuk mempertimbangkan resetting pada recloser B 21, outgoing penyulang Salju dan incoming agar menaikkan setting relai sehingga ketika merasakan arus pick up relai tidak langsung trip.
The effectiveness of Liliaceae phyllospheric Actinomycetes as biocontrol agent of purple blotch disease (Alternaria porri Ell. Cif) on shallot
Authors: Wati Cheppy , Nawangsih Abdjad Asih , Wahyudi Aris Tri , Wiyono Suryo , Munif Abdul
Published: July 2024

Purple blotch, caused by Alternaria porri, affects leaves and tubers, leading to reduced yields. Traditionally, synthetic chemical fungicides were heavily relied upon for control. As an alternative, biocontrol agents like actinomycetes have gained attention. Some actinomycetes can suppress plant pathogens by producing antifungal compounds. This research aimed to investigate the efficacy of phyllosphere actinomycetes from Liliaceae plants as biocontrol agents against purple blotch disease on shallots in the greenhouse. Conducted at the IPB University Plant Bacteriology and Mycology Laboratory and the greenhouse at Bogor Agricultural Development Polytechnic, West Java, the research involved several stages, including pathogen identification, preparation of actinomyces inoculum and A. porri, and application of actinomycetes biocontrol agents to shallots in the greenhouse. A. porri isolates were obtained from shallot production centers in the Brebes area, Central Java. The use of the actinomycetes from the phyllosphere effectively suppressed purple blotch disease, with the lowest area under the disease development curve (AUDPC) recorded at 635.9% for the CFS28 isolate. Lower AUDPC values indicated slower disease progression. Actinomycetes biocontrol agents showed promising efficacy, with the CFS28 isolate achieving the highest efficacy percentage of 78.37%. Additionally, plant growth was significantly enhanced by actinomycete application, with tuber sizes ranging from 1.44 to 2.06 g, fresh weights from 17.63 to 24.72 g, and dry weights of shallot bulbs from 5.43 to 17.96 g. The incubation period for A. porri could be extended by actinomycetes, ranging from 5.43 to 8.5 days for purple blotch symptoms to manifest on shallots. The use of Actinomyces phyllosphere biocontrol agents holds promise for disease control on other plants’ leaves, contributing to environmentally friendly and sustainable agricultural practices.
Hybrid Biopellets Characterization of Gamal Wood (Gliricidia sepium) and Robusta Coffee Husk at Various Compositions
Authors: Putri Mangifera Indica Dhaifullah Wangun , Murda Rio Ardiansyah , Maulana Sena , Octaviani Eti Artiningsih , Sari Nurika Arum , Hasibuan Mhd Muhajir , Aulia Fauzan , Hidayat Wahyu
Published: July 2024

Biopellets from gamal wood (Gliricidia sepium) as a biomass energy resource could be an alternative to replace fossil fuels due to having met standards based on moisture content, ash content, fixed carbon, calorific value, and density. Unfortunately, they still had high levels of volatile matter. Robusta coffee husk was a material with high nitrogen content, which is suspected of being able to bind aromatic substances in volatile organic compounds. This study aims to evaluate the quality of biopellets and determine the optimum composition of the biopellets from gamal wood and coffee husk. The blended composition of gamal wood and coffee husk biopellets studied were 100:0, 75:25, 50:50, 25:75, and 0:100. The biopellets were manufactured using the material size of 40-60 mesh with a pressure of 173.51 MPa. The best biopellet was produced in the composition of 75% gamal wood and 25% coffee husk, with a density of 0.85 g/cm3, moisture content of 8.03%, ash content of 3.92%, volatile substances of 78.01%, fixed carbon of 18.07%, and calorific value of 4,176 cal/g. The biopellet quality met the standards of SNI 8021:2014 and EN 14061-2, except for ash content. Adding coffee husk reduced gamal wood biopellet’s volatile matter, increasing the fixed carbon and density of gamal wood biopellets.
Keywords: alkali immersion, bamboo, bio-composite, oriented strand board, pre-treatment
Social Motives and Group Commitment on Volunteer Involvement in Five Social Communities in The City of Bandar Lampung
Authors: Fitriani Annisa , Rasyidin Yusafrida , Irawan Yoga , Zalmansyah Achril
Published: July 2024

AbstractVolunteers are people who decide to be involved in volunteering activities based on careful calculation. The activities by volunteers are voluntary and without expecting external rewards. The population in the study came from five social communities in Bandar Lampung: 1) Jendela Lampung Community, 2) Komunitas Peduli Generasi with Yayasan Rumah Singgah Peduli Lampung, 3) Komunitas Sedekah Lampung, 4) Komunitas Berbagi (Kombi), and 5) Itera Mengajar. From these five social communities, the researchers obtained a population of 202 volunteers. The researchers obtained a sample of 60 volunteers through purposive sampling techniques and screening. This study employed Likert scales data collection method, which includes a volunteer involvement scale, a social motive scale, and a group commitment scale. The data were analyzed using two predictor multiple regression analysis techniques assisted by the JASP 0.16.1.0 program for Windows. The results showed that the correlation value (r) was 0.337 with a significant p-value of 0.041 (p-value smaller than 0.05). The hypothesis is accepted; therefore, a significant relationship exists between social motives and group commitment on volunteer involvement. The R2 value of 0.155 states that the two independent variables effectively contribute 15.5%.Keywords: Volunteer Involvement, Social Motives, and Group Commitment
Exploring Family Strength: Vulnerability Factors and the Role of Spirituality in Family Resilience During COVID-19 Pandemic
Authors: Islamia Intan , Marliani Rosleny
Published: July 2024

This research explores the relationship between family vulnerability, spirituality, and resilience during the Covid-19 pandemic. With a quantitative approach and cross-sectional study design, samples were taken randomly using a random sampling method, involving 189 husbands/wives willing to participate. Data collection was carried out through interviews (both online and offline) using a modified questionnaire based on the Sunarti (2021) scale to measure family resilience and family vulnerability, as well as Underwood's (2003) DSES (Daily Spiritual Experience Scale) scale to measure spirituality. The research results show that there is a significant negative relationship between family vulnerability and family resilience, while spirituality has a significant positive correlation with family resilience. In addition, family vulnerability and spirituality together contributed 17.2% to the variation in family resilience. These findings contribute to understanding family resilience in the COVID-19 era and indicate the need for further discussion in future research.Keywords: Family resiliency, family vulnerability, spirituality, COVID-19
The Role of Self-Regulated Learning and Gender in Determining Student Academic Achievement: A Comparative Analysis
Authors: Sandayanti Vira , Supriyati Supriyati
Published: July 2024

AbstractAcademic achievement is the level of success in studying the learning material. It can be seen from the GPA, which is a number that describes the success of studies cumulatively (Saputro, 2022). Academic achievement factors (Arofah et al., 2020) include internal factors (physiology and psychology) and external factors (social and non-social environment). The study aimed to determine the differences in student academic achievement in terms of Self-Regulated Learning (SRL) and gender. The research sample was 160 students of the Faculty of General Medicine class of 2022 at Malahayati University, determined by random sampling technique. The data was collected using the MSLQ (Motivated Strategies for Learning Questionnaire) scale, 2021/2022 academic year GPA, and students’ gender. The correlation test results were 0.562 (p = 0.000), where the p-value was lower than 0.05. Therefore, the proposed research hypothesis proved differences in academic achievement in terms of SRL and gender in the Faculty of General Medicine students at Malahayati University. The SRL contributed to academic achievement by 32%.