bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of martensite ageing on the orientation dependence of the B2-phase yield stress and the shape memory effect in Ti-40Ni-10Cu alloy single crystals
Authors: Kireeva I. V.  , Chumlyakov Yu. I.  , Pobedennaya Z. V.  , Marchenko  E. S.
Published: July 2023

For the [001]- and [123]-oriented single crystals of the Ti-40Ni-10Cu alloy, it was shown for the first time that martensite ageing at 250 MPa leads to a strong orientation dependence of the B2-phase yield stress under tension, which is weakly manifested in the initial crystals. The maximum increase in the B2-phase yield stress by 350 MPa compared with the initial state was found in the [001]-oriented crystals. At external tensile stresses of 100 MPa, the shape memory effect in [001]-oriented crystals was 4.0± 0.2% in the initial state and increased to 5.0± 0.2% after martensite ageing, while in [123] orientation, on the contrary, it decreased from 8.7± 0.2% to 5.4± 0.2%. Keywords: Single crystals, Martensite ageing, B2-phase, Shape memory effect, Tension.
Ultra-wideband chaos generator with selected inertia in the microwave range
Authors: Savel’ev S. V.  , Morozova L. A.
Published: July 2023

An original scheme for constructing an ultra-wideband single-transistor generator of noise-like oscillations of the microwave range of wavelengths was proposed. The generator contains an inertial converter of the output signal of a nonlinear amplifier with positive feedback, the signal of which modulates the supply voltage of the active element (transistor). An experimental model of a chaotic signal generator based on a powerful domestic transistor 2T982A-2 operating in a small signal mode was created. The frequency band of generated noise oscillations with a power spectrum irregularity of 5 dB occupied the frequency range from 2.3 to 7.4 GHz with an integrated power of 5,mW with an average spectral density of noise oscillations of 10-6 W/MHz. The generator efficiency is 1%. Keywords: powerful bipolar transistor, ultra-wideband spectrum, dynamic chaos, generator with selected inertia.
Excitation of exchange spin waves in a two-layer ferrite-ferrite structure
Authors: Tikhonov V. V.  , Gubanov V. A.  , Filchenkov I. O.  , Sadovnikov A. V.
Published: July 2023

The possibility of intense radiation of short-wave exchange spin waves excited in a thin transition layer at the internal boundary of a bilayer ferrite-ferrite structure is shown. Modelling of radiation processes has been exemplified by a tangentially magnetized bilayer film of ferric-yttrium garnet. It was found that the radiation of exchange spin waves has one-way character. The waves were radiated into the layer with decreased magnetization. Their group velocities were an order of magnitude lower than sound velocity in iron-yttrium garnet. Obtained results may be useful for creation of miniature controllable delay line on exchange spin waves. Keywords: spin waves, ferrite, iron yttrium garnet, delay line.
Limiting factors for the growth rate of epitaxial III-V compound semiconductors
Authors: Dubrovskii V. G.
Published: July 2023

Limiting factors for the growth rate of epitaxial III-V compound semiconductors are investigated. A model based on the two connected diffusion equations for the group III and V adatoms applies for planar layers and different nanostructures including III-V nanowires. An expression for the step growth rate is obtained and a physical parameter is revealed which determines an element which actually limits the growth process. Keywords: III-V compound semiconductors, surface diffusion of adatoms, desorption, step growth rate.
AI Literacy for an Ageing Workforce: Leveraging the Experience of Older Workers
Authors: Chetty Krish
Published: July 2023

This study delves into the potential benefits of Artificial Intelligence (AI) literacy training for late-career-stage workers approaching retirement. These workers often possess extensive experience but may lack the necessary digital and AI skills. AI literacy training can empower them to leverage their experience and become proficient contributors to the digital economy. Furthermore, the article describes how these workers might benefit from AI training, particularly when employing practical applications of AI in their specific field or industry. The article argues that these workers’ knowledge, insights and experience are valuable assets that can be exploited to benefit the business. Their abilities allow them to calibrate the prompts used in Generative-AI systems, maximizing the quality of the AI-generated content. Prompt engineering is a new career path that has followed the rapid emergence of Generative AI content creation. Late-career-stage workers are well suited to act in this role, leveraging their business knowledge to produce quality outputs. The study argues that employers should integrate domain-specific knowledge into the training program's structure, allowing late-career-stage workers to understand the relevance of Generative AI systems and calibrate prompts based on their experience and knowledge. Developing their AI skills can ultimately lead to increased productivity and efficiency. Moreover, this article emphasizes the potential benefits for these workers and businesses in providing AI literacy training. It not only enables late-career-stage workers to enhance their skills, but it can also bring valuable insights and experience to the business, ultimately leading to the growth and success of the business. These opportunities empower such workers to access more strategic positions in their institutions and gain a sense of fulfillment in their roles. The methodology for this study will follow a scoping literature review of academic articles. This approach allows for examining existing research on AI literacy training for late-career-stage workers. Articles were sourced through a comprehensive search of academic databases such as ScienceDirect, EbscoHost and Scopus. Search terms included AI literacy, digital literacy, aging workforce and prompt engineering.
Human Neutrophil Peptide 1- 3 and Vitamin D levels in periodontitis
Authors: Zidan Mahawi Fatima , Hassan Al-Ghurabi Batool
Published: July 2023

Human neutrophil peptides 1-3 (HNP1-3) contribute to oral health by playing a role in innate response against oral diseases, owing to their antimicrobial, antiplaque and immunomodulatory activity. Vitamin D may reduce the risk of infection through multiple mechanisms and boosts innate immunity by modulating the production of antimicrobial peptides and cytokine response. This study was performed to evaluate the level of human HNP1-3 in periodontitis patients and controls and to study the effect of vitamin D on the levels of peptides in periodontitis. Eighty-five subjects were enrolled in this observational case-control study aged 20-59 years. The subjects were divided into fifty patients with periodontitis and 35 healthy controls. Periodontal parameters used in this study were plaque index, gingival index bleeding on probing, probing pocket depth and clinical attachment loss. Blood samples were collected from all subjects, and then ELISA was done to estimate the levels of HNP1-3 and vitamin D in patients and controls. The finding revealed a significant increase (P˂0.01) in the mean level of HNP1-3 among the patient's group compared to the control group.

Moreover, there is no significant correlation with all parameters except the gingival index, which has a considerable result (r=0.367, p=0.009). On the other hand, this study showed a significant decrease (P<0.01) in the mean level of vitamin D in patients compared to controls, and also that there was no significant decrease in the serum level of HNP1-3 among vitamin D insufficient group in comparison to vitamin D sufficient group. These results indicated that the increased levels of HNP1-3 and its correlation with GI provide evidence for the critical role of neutrophils in the inflammatory process in periodontitis and vitamin D, which plays a role in antimicrobial peptide production.

Keywords: periodontitis, antimicrobial peptides, human neutrophils peptides
Performance of ChatGPT on the Situational Judgement Test—A Professional Dilemmas–Based Examination for Doctors in the United Kingdom
Authors: Borchert Robin J , Hickman Charlotte R , Pepys Jack , Sadler Timothy J
Published: July 2023

Background

ChatGPT is a large language model that has performed well on professional examinations in the fields of medicine, law, and business. However, it is unclear how ChatGPT would perform on an examination assessing professionalism and situational judgement for doctors.

Objective

We evaluated the performance of ChatGPT on the Situational Judgement Test (SJT): a national examination taken by all final-year medical students in the United Kingdom. This examination is designed to assess attributes such as communication, teamwork, patient safety, prioritization skills, professionalism, and ethics.

Methods

All questions from the UK Foundation Programme Office’s (UKFPO’s) 2023 SJT practice examination were inputted into ChatGPT. For each question, ChatGPT’s answers and rationales were recorded and assessed on the basis of the official UK Foundation Programme Office scoring template. Questions were categorized into domains of Good Medical Practice on the basis of the domains referenced in the rationales provided in the scoring sheet. Questions without clear domain links were screened by reviewers and assigned one or multiple domains. ChatGPT's overall performance, as well as its performance across the domains of Good Medical Practice, was evaluated.

Results

Overall, ChatGPT performed well, scoring 76% on the SJT but scoring full marks on only a few questions (9%), which may reflect possible flaws in ChatGPT’s situational judgement or inconsistencies in the reasoning across questions (or both) in the examination itself. ChatGPT demonstrated consistent performance across the 4 outlined domains in Good Medical Practice for doctors.

Conclusions

Further research is needed to understand the potential applications of large language models, such as ChatGPT, in medical education for standardizing questions and providing consistent rationales for examinations assessing professionalism and ethics.
Effect of Technology and Digital Media Use on Adolescent Health and Development: Protocol for a Multimethod Longitudinal Study
Authors: Cascio Christopher N , Selkie Ellen , Moreno Megan A
Published: July 2023

Background

Technology and digital media (TDM) use is integral to modern adolescence; adolescents have been labeled as “digital natives,” since they have had exposure to digital technology for their entire lives. Previous evidence has illustrated TDM’s connections with adolescent risk behaviors such as increased alcohol use and social media exposure, as well as relationships with adolescent well-being such as improved socioemotional health and social media connections with peers. Although several recent review articles have described both the benefits and risks of technology use, most individual studies adopt a singular risk-centered approach. In addition, reviews suggest that little evidence exists on the potential mediating and moderating factors between TDM use and well-being and health outcomes, which limits our understanding of what influences the outcomes of interest. Therefore, there is an urgent need to fill these gaps.

Objective

This protocol addresses the need to understand how TDM exposure and use affect multiple developmental domains and health outcomes. We address the fragmented nature of previous research, the common focus on single behaviors or conditions, and the typical narrow lens on risks. Our approach further aligns with reviews that called for studies identifying and investigating the factors that moderate the relationships between social media and health behaviors and outcomes.

Methods

We will address our objective by longitudinally examining over a 2-year period a common set of adolescent participants (N=400, aged 13-15 years) across 3 studies that adopt a multimethodological approach. Study 1 will use TDM to understand the mechanisms behind adolescent health and risk behaviors. Study 2 will use functional magnetic resonance imaging to understand how positive and negative TDM experiences relate to mental and behavioral health in a subsample of 150 adolescents. Study 3 will use a mixed methods design to evaluate self- and other-generated TDM content as the predictors of socioemotional well-being in sexual and gender minority and non–sexual and gender minority adolescents.

Results

Recruitment is ongoing, and the initial results from the first wave of recruitment are expected in 2024.

Conclusions

This integrated approach to longitudinal data collection from a shared adolescent participant pool will lead to novel analyses and findings, allowing for the examination of the health and well-being risks and benefits associated with TDM use and factors that moderate these relationships. The findings from this study will advance conceptual models and inform new interventions to improve adolescent health.

International Registered Report Identifier (IRRID)

DERR1-10.2196/50984
The Mood, Mother and Child Study: Protocol for a Prospective Longitudinal Study and Randomized Controlled Trial
Authors: Mills-Koonce W Roger , Grewen Karen , O’Shea Nisha Gottredson , Pearson Brenda , Strange Chelsea Grace , Meltzer-Brody Samantha E , Guintivano Jerry Dolph , Stuebe Alison M
Published: July 2023

Background

Perinatal depression affects >400,000 mother-child dyads in the United States every year and is associated with numerous adverse maternal and child developmental outcomes. Previous research implicates the dysregulation of oxytocin and the hypothalamic-pituitary-adrenal (HPA) axis functioning in mothers and children as potential mechanisms mediating or moderating the transmission of risk associated with maternal depression.

Objective

The Mood, Mother and Child study will examine the psychobiological sources of risk and resilience within mother-child dyads affected by maternal depression. This manuscript describes (1) the study rationale and aims, (2) the research design and procedures and how they were altered in response to the COVID-19 pandemic, and (3) the data analysis plan to test the study hypotheses.

Methods

This is a prospective longitudinal study with an embedded randomized controlled trial that examines (1) correlations among postpartum depression and anxiety symptoms, maternal and child oxytocin and HPA axis functioning, and child developmental outcomes and (2) the causal relationship between exogenous oxytocin and HPA reactivity. This study is funded by the National Institute of Child Health and Human Development with institutional review board approval.

Results

Recruitment and data collection have commenced, and the expected results will be available in 2024. Analyses are presented for testing the proposed hypotheses.

Conclusions

The unique combination of a prospective longitudinal research design with an embedded randomized controlled trial will allow the Mood, Mother and Child study to apply a developmental lens to the study of maternal depression and anxiety symptoms from birth to middle childhood and the psychobiological mechanisms promoting risk and resiliency for both mother and child outcomes. This will be the first study that simultaneously evaluates (1) the role of oxytocin using multiple methodologies, (2) the causal relationships between exogenous oxytocin and HPA axis functioning among mothers with differing levels of depression and anxiety symptoms, and (3) the multiple mediating and moderating roles of parenting behaviors and maternal and child psychobiological characteristics. The goals of these aims are to provide insights into the psychobiological effects of oxytocin in women and inform future clinical trials to treat perinatal mood disorders.

Trial Registration

ClinicalTrials.gov NCT03593473; https://classic.clinicaltrials.gov/ct2/show/NCT03593473

International Registered Report Identifier (IRRID)

DERR1-10.2196/51132
Potential Schizophrenia Disease-Related Genes Prediction Using Metagraph Representations Based on a Protein-Protein Interaction Keyword Network: Framework Development and Validation (Preprint)
Authors: Yu Shirui , Wang Ziyang , Nan Jiale , Li Aihua , Yang Xuemei , Tang Xiaoli
Published: July 2023

BACKGROUND

Schizophrenia is a serious mental disease. With increased research funding for this disease, schizophrenia has become one of the key areas of focus in the medical field. Searching for associations between diseases and genes is an effective approach to study complex diseases, which may enhance research on schizophrenia pathology and lead to the identification of new treatment targets.

OBJECTIVE

The aim of this study was to identify potential schizophrenia risk genes by employing machine learning methods to extract topological characteristics of proteins and their functional roles in a protein-protein interaction (PPI)-keywords (PPIK) network and understand the complex disease–causing property. Consequently, a PPIK-based metagraph representation approach is proposed.

METHODS

To enrich the PPI network, we integrated keywords describing protein properties and constructed a PPIK network. We extracted features that describe the topology of this network through metagraphs. We further transformed these metagraphs into vectors and represented proteins with a series of vectors. We then trained and optimized our model using random forest (RF), extreme gradient boosting, light gradient boosting machine, and logistic regression models.

RESULTS

Comprehensive experiments demonstrated the good performance of our proposed method with an area under the receiver operating characteristic curve (AUC) value between 0.72 and 0.76. Our model also outperformed baseline methods for overall disease protein prediction, including the random walk with restart, average commute time, and Katz models. Compared with the PPI network constructed from the baseline models, complementation of keywords in the PPIK network improved the performance (AUC) by 0.08 on average, and the metagraph-based method improved the AUC by 0.30 on average compared with that of the baseline methods. According to the comprehensive performance of the four models, RF was selected as the best model for disease protein prediction, with precision, recall, F1-score, and AUC values of 0.76, 0.73, 0.72, and 0.76, respectively. We transformed these proteins to their encoding gene IDs and identified the top 20 genes as the most probable schizophrenia-risk genes, including the EYA3, CNTN4, HSPA8, LRRK2, and AFP genes. We further validated these outcomes against metagraph features and evidence from the literature, performed a features analysis, and exploited evidence from the literature to interpret the correlation between the predicted genes and diseases.

CONCLUSIONS

The metagraph representation based on the PPIK network framework was found to be effective for potential schizophrenia risk genes identification. The results are quite reliable as evidence can be found in the literature to support our prediction. Our approach can provide more biological insights into the pathogenesis of schizophrenia.
Inverse Kinematic Algorithm with Newton-Raphson Method iteration to Control Robot Position and Orientation based on R programming language
Authors: Siagian Ruben Cornelius
Published: July 2023

The homogeneous transform program is a function used to calculate the homogeneous transformation matrix at a specific position and orientation of a three-link manipulator. The homogeneous transformation matrix is a 4x4 matrix used to represent the position and orientation of an object in three-dimensional space. In the program, the rotation matrix R is calculated using the Euler formula and stored in a 4x4 matrix along with the position coordinates. The Jacobian matrix function calculates the Jacobian matrix at a specific position and orientation of a three-link manipulator using the homogeneous transformation matrix. The Euler formula used in the program is based on the rotation matrices for rotations around the x, y, and z-axes. The output of these functions can be useful for future research in developing advanced manipulators with improved accuracy and flexibility. Research gaps in exploring the limitations of these functions in real-world applications, particularly in scenarios involving complex manipulator configurations and environmental factors.
Applying Data Mining to Classify Customer Satisfaction using C4.5 Algorithm Decision Tree
Authors: Prayoga J. , Gustiana Zelvi , Rahmah Sabrina Aulia
Published: July 2023

Tight business competition demands business actors to make responsive, timely decisions to survive the uncertainty. Food business, especially cafes, has emerged as one of the most popular business types recently.  One cafe concept that draws most customers' interest is modern concepts, friendly service, and affordable prices. Finn Coffee is one of the cafes providing a range of foods and beverages, especially coffee-based beverages. Customer satisfaction defines one's feelings when comparing performance. It denotes customer's responses to their satisfied needs. The term satisfaction itself is described as one's happy expression after receiving a quality product with affordable price and satisfying quality. The present study aimed to analyze cafe customer satisfaction using the C4.5 algorithm with predetermined criteria. Customer satisfaction was classified using C4.5. The algorithm displays the level of customer satisfaction based on the customers' response to the Google form distributed by the cafe employees/owner.
La muerte en la educación para la salud vinculada a la mejora de la calidad de vida y la atención de las personas mayores
Authors: Martínez-Heredia Nazaret , Santaella Rodríguez Esther
Published: July 2023

El objetivo principal de este estudio es identificar la importancia de incorporar el tema de la muerte en la educación para la salud en personas mayores, como un elemento curricular en la formación de educadores sociales. Se trata de un estudio cualitativo, en el que se utilizó como instrumento principal la entrevista semiestructurada. La muestra utilizada fue el alumnado de tercero del grado de Educación Social de la Universidad de Granada (España). Entre los principales resultados se destaca que las personas entrevistadas reconocen que la muerte es un tema muy poco hablado, debido al miedo y la ansiedad que puede provocar. Además, exponen que la formación en educación para la muerte a lo largo de su proceso formativo es inexistente, aunque es considerado un tema relevante, especialmente para conocer las actitudes de afrontamiento de la muerte, lo que puede suponer una mejora en la calidad de vida de los mayores.
La percepción de investigadores ante la cooperación tecnocientífica entre instituciones de educación superior y sector productivo del noroeste de México
Authors: Pérez-Morán Juan Carlos , Morales Páez Marcela , Bernal-Baldenebro Brando
Published: July 2023

El propósito del estudio es explorar y caracterizar la percepción de profesores investigadores (p-i) ante la cooperación tecnocientífica entre instituciones de educación superior (IES) y el sector productivo (SP) del noroeste de México. Se analizaron las respuestas de 182 investigadores (132 hombres y 50 mujeres) ante los ítems de la escala para medir la percepción de la cooperación tecnocientífica entre las IES y el SP (EA-COOPTEC v0.1). Los resultados denotan que los p-i presentan una percepción positiva hacia la cooperación tecnocientífica. En conclusión, los p-i que presentan una actitud favorable ante la cooperación tecnocientífica, a partir de las variables de estudio, son: a) las mujeres; b) aquéllos con 35 años o menos; c) los candidatos al Sistema Nacional de Investigadores (SNI); d) los que pertenecen a las áreas de biotecnología y ciencias agropecuarias; y e) los que tienen de 10 a 14 años de experiencia en colaboración con el entorno.
Valoración diferenciada de la diversidad epistémica en una experiencia de formación técnico-productiva en los Andes peruanos
Authors: Escalante Solano Esteban
Published: July 2023

En este artículo se buscará poner en discusión, a través de un caso etnográfico, la pertinencia de la dicotomía modernidad/alteridad como eje de relevancia política del conocimiento subalterno en proyectos educativos desarrollistas. Se pregunta cómo es que, en la experiencia concreta de las y los sujetos-a-desarrollar, se construyen parámetros de valoración de saberes culturalmente distintos. Se analiza, etnográfica y cualitativamente, el caso de una institución formativa en los Andes peruanos donde jóvenes de origen campesino estudian la carrera técnica de Producción Agropecuaria. Es decir, donde son formados en una perspectiva experta de producción agropecuaria cuyos objetos de conocimiento coexisten e interactúan con los de tradiciones campesinas de conocimiento productivo. Se argumentará que, si bien se construye un cuadro de subordinación epistémica, esta subordinación será inestable y existen grietas desde las cuales valorar el conocimiento campesino. Éstas, sin embargo, no implicarán necesariamente una forma de resistencia frente a la modernidad.
Design and Analysis of Innovative Machine to make Bio Cups and Plates from Agricultural Waste
Authors: V Hariharan , Arulraj R.
Published: July 2023

Abstract: With the growing popularity of sustainability, many companies have begun using environmentally friendly materials. This is particularly significant for the disposable tableware market. one hundred billion single-use cups are sent to landfills annually in the our country. Their production, usage, and disposal cause deforestation, pollution, and human health problems. Attempts have been made to produce more environmentally friendly tableware, however, these options are frequently not economically or logistically viable. From This innovative design of machine , we can make a bio degradable cups and plates from different agricultural waste materials like banana stem, rice bran, rice husk, paddy straw, wheat bran, wheat grass, tender coconut shell, coir fiber and so on. Based on the raw materials available on their locations we can able to make a sustainable single use cups from the available agricultural waste materials. After utilization of this single use tea cups, Again by crushing and dissolved in water, we can provide these as a cattle feed. This project strived to develop a single-use cup that meets the market need while remaining biodegradable and sustainably sourced. The designing of the innovative machine is carried out by using the software PTC creo 8.0.And the analysis is carried out by solidworks simulation.
Adaptive surface code for quantum error correction in the presence of temporary or permanent defects
Authors: Siegel Adam , Strikis Armands , Flatters Thomas , Benjamin Simon
Published: July 2023

Whether it is at the fabrication stage or during the course of the quantum computation, e.g. because of high-energy events like cosmic rays, the qubits constituting an error correcting code may be rendered inoperable. Such defects may correspond to individual qubits or to clusters and could potentially disrupt the code sufficiently to generate logical errors. In this paper, we explore a novel adaptive approach for surface code quantum error correction on a defective lattice. We show that combining an appropriate defect detection algorithm and a quarantine of the identified zone allows one to preserve the advantage of quantum error correction at finite code sizes, at the cost of a qubit overhead that scales with the size of the defect. Our numerics indicate that the code's threshold need not be significantly affected; for example, for a certain scenario where small defects repeatedly arise in each logical qubit, the noise threshold is 2.7% (versus the defect-free case of 2.9%). These results pave the way to the experimental implementation of large-scale quantum computers where defects will be inevitable.
Upaya Penanganan Korban Human Trafficking di Indonesia
Authors: Rumlah Siti
Published: July 2023

Perlu diketahui bahwasanya perkembangan kasus trafficking (perdagangan orang) cenderung meningkat bahkan mengkhawatirkan terutama di Indonesia. Perdagangn orang ini menjadi suatu ancaman serius dalam hak asasi manusia. Untuk itu artikel bertujuan untuk memberikan suatu informasi terkait definisi Human Trafficking, permasalahan Human Trafficking di Indonesia, penyebab terjadinya Human Trafficking dan upaya pemerintah dalam penanganan korban Human Trifficking di Indonesia. Maka dari itu untuk menjawab semua rumusan masalah diatas, metode pengumpulan data menggunakan penelusuran literatur dari review jurnal yang relevan dengan tema penulisan, kemudian di analisis secara mendalam untuk mendapatkan jawaban dari tema yang telah disajikan. Secara garis besar, salah satu upaya yang dapat mencegah terjadinya Human Trafficking dengan selalu senantiasa memberikan sosialisasi ataupun seminar umum mengenai perdagangan orang kepada masyarakat yang ada di Indoensia agar menambah pengetahuan dasar yang harus diperhatikan dan dipedulikan. Selain itu, pemerintah juga di harapkan untuk mempertegas keadaan hukum di Indonesia yang mengatur tentang Human Trafficking.
BUDAYA OLAHRAGA DI MASYARAKAT SEBAGAI FENOMENA SOSIAL TERHADAP KESEHATAN JIWA DAN KEBUGARAN JASMANI LANSIA
Authors: Rumlah Siti
Published: July 2023

Olahraga merupakan usaha yang dilakukan guna menjaga dan meningkatkan kesehatan serta kebugaran lanjut usia (lansia). Penelitian ini dilakukan dengan tujuan unutk mengetahui mengenai manfaat olahraga fisik yang dilakukan oleh lansia terhadap kebugaran jasmani tubuh. Penelitian ini dilakukan dengan metode artikel reviewr yaitu mencari, mengumpulkan dan memilah artikel berdasarkan kata kunci pada penelitian ini. Olahraga untuk lansia jika dijadwalkan akan memiliki manfaat menjaga kesehatan, menjaga kondisi jantung, melancarkan peredaran darah pada tubuh, mengurangi lemat tidak sehat, menjaga kondisi tubuh, meminimalisir stres dan ketegangan mental serta unutk menjaga daya tahan tubuh. Jika olahraga yang dilakukan tidak sesuai,  akan berdampak buruk untuk kedepannya. Untuk mencegah timbulnya gangguan dan penurunan, terutama ukuran  dan kekuatan otot  dapat dilakukan dengan latihan kekuatan yang dilakukan teratur. Untuk latihan penguatan yang aman dan efektif harus dipersiapkan dengan sempurna dan dilakukan setelah sesi latihan dilaksanakan.
EKSISTENSI GERAKAN MAHASISWA TAHUN 1966 SEBAGAI UPAYA TUMBANGKAN KEPEMIMPINAN SOEKARNO
Authors: Damayanti Wiwik
Published: July 2023

Ketidakstabilan politik pada tahun 1966 dilandasi dari kurang tegasnya Presiden Soekarno dalam mengambil keputusan terkait permasalahan negara yang sedang berlangsung merupakan “boomerang” bagi dirinya. Lahirnya Surat Perintah Sebelas Maret yang ditujukkan oleh Soekarno kepada Soeharto sering dianggap sebagai titik awal munculnya orde baru. Penelitian ini menggunakan metode penelitian sejarah yang terdiri dari heuristik, verifikasi, interpretasi, dan historiografi. Teknik pengumpulan data dalam penelitian ini yaitu melalui studi pustaka. Kesimpulan yang diperoleh dari hasil penelitian ini yakni gerakan mahasiswa yang bersatu dalam KAMI tahun 1966 pada mulanya bertujuan untuk membubarkan PKI, melakukan reshuffle Kabinet Dwikora, dan menurunkan harga-harga sebagaimana yang tergambar dalam Tritura (Tri Tuntutan Rakyat). Namun dalam perkembangannya karena ketidaktegasan Presiden Soekarno dalam menangani masalah yang berlangsung membuat mahasiswa kehilangan kepercayaan terhadap Soekarno. Atas dasar tersebut gerakan yang orientasi utamanya adalah membubarkan PKI menjadi menjatuhkan kepemimpinan Presiden Soekarno.
SUMBER DANA PERANG REVOLUSI INDONESIA 1945-1949: PEPERANGAN DI JAWA DAN SUMATERA
Authors: Cahyono Rizki Aldi
Published: July 2023

Awal kemerdekaan Indonesia diwarnai dengan pemblokiran ekonomi oleh Belanda dan berbagai serangan Belanda untuk menguasi kembali Indonesia, hingga melahirkan suatu periode perang revolusi kemerdekaan 1945-1949. Kesulitan ekonomi membuat Indonesia terkendala dalam mendapatkan sumber dana yang digunakan guna perang mempertahankan kemerdekaan. Artikel ini bertujuan untuk membahas mengenai darimana pejuang revolusi kemerdekaan mendapatkan dana untuk berperang menghadapi Belanda. Terutama wilayah Jawa dan Sumatera yang memiliki berbagai gelaran perang revolusi lantaran keduanya adalah wilayah awal yang diakui Belanda dalam Perjanjian Linggarjati. Penelitian ini menggunakan metode sejarah: heuristik, kritik, interpretasi, dan historiografi dengan teknik pengumpulan data berupa studi kepustakaan. Hasil penelitian menyebutkan bahwa para pejuang yang tergabung dalam laskar perjuangan melakukan berbagai cara guna mendapatkan dukungan dana perang, mulai dari pertunjukkan amal yang mempertontonkan seni, pencegatan dan perampasan amunisi tentara Belanda, hingga penjualan candu dan penyeludupan barang ekspor ke Singapura. Dapur umum sebagai sumber utama asupan tenaga pejuang juga memiliki dampak signifikan dalam mendukung jalannya perang revolusi kemerdekaan.
The Management of Power System Reliability in the Offshore Oil and Gas Field
Authors: Reinhard Welly , Yulius Gustav , Sarasi Vita , Harsanto Budi , Azis Yudi , Yunani Akhmad
Published: July 2023

The reliability of electric power systems is needed in offshore oil and gas field operations because disruptions can have a direct impact on oil production, costs, and company profits.Objectives: to determine the evaluation of reliability performance and propose a model for managing the power system reliability of the PHE OSES offshore oil and gas field.Methodology: A case study with data collected through observation, interviews, and analysis of relevant documents.Finding: Reliability in 2015-2016 has not reached the target but from 2017-2021 has reached the target of 97.5%, as well as availability in 2015, 2018, 2019 & 2020 has not reached the target but in 2016, 2017 & 2021 has reached the target of 95%. This resulted in the highest production losses in 2015 at 266,965 and the lowest in 2021 at 21,388 barrels of oil. The model is proposed by combining elements in risk-based asset management method, RCM method, and redesign.Conclusion: In recent years, reliability has been on target but availability is volatile. The model is proposed to maintain reliability & availability on target so that production losses can be minimized.
PDCA Method Implementation to Reduce the Potential Product Defects in the Automotive Components Industry
Authors: Sumasto Fredy , Maharani Cantika Puspa , Purwojatmiko B. Handoko , Imansuri Febriza , Aisyah Siti
Published: July 2023

The research aim to reduce the potential for product defects in the automotive component industry by implementing Plan-Do-Check-Action (PDCA). The application of the PDCA method was carried out in an automotive component manufacturing company in Indonesia which produced SLJ 91 parts as a research object. The causes of the high number of product defects are known at the Plan stage from setting the theme of improvement to the root cause by using a fishbone diagram and 5W+1H analysis. In the Do stage, system improvements are implemented from the solutions generated by the 5W+1H analysis. The repair results are controlled to confirm the results of the repairs made. The corrective actions taken resulted in a reduction in product defects of 2.8% so that they were included in the maximum tolerance for the number of defects in the SLJ 91 part. Based on the results of data processing, analysis, and comparison between before and after implementation, it was found that the defect rate for SLJ 91 products was reduced from 10.8 % to 8%, a reduction in the percentage of 2.8% so that the product reaches the quality target it should be. The results of the repair had a direct impact on the type of dent defects, namely a decrease in the number of defects from 8.6% to 5.3%, so that there was a decrease of 3.3%. The results of the research are implemented and standardized in the action stage so that the improvements made can be maintained in the long term.
Relayout of Palm Coconut Factories in West Sumatera
Authors: Ramadian Demi , Sitorus Tosty Maylangi
Published: July 2023

One of the plantation companies and palm oil mills in West Sumatera is part of the group and makes a positive contribution. In one of the palm oil factories in West Sumatra, there is a problem with the flow of the work process, where there is an accumulation of products of different sizes in the factory area. This hinders the product transfer process. In addition, this situation will affect the use of the land area. Therefore, it is necessary to consider how to make or change the layout of facilities more effectively and efficiently. An activity Relationship Chart will be used as a method to make recommendations for the layout design of palm coconut factories. The flow of the crude palm oil production process from the proposed layout design weighs the car and bunches of fresh fruits before heading to isolation until the bunches of ripe fruits are stored in the storage tank before being transferred to the transport car. Based on the proposed layout redesign, the management of the oil palm mill can consider improving the placement of the area in the boiler station, as well as the placement of production not too far from the production process.
Analysis of Worker’s Age and Working Time on the Influence of Productivity with Multiple Linear Regression Methods (Case Study of Automotive Spare Parts Manufacturing Company)
Authors: Sarjono Sarjono , Gofur Muhamad , Apriani Ades Yulia , Saputra Dafid Mega
Published: July 2023

Improving the quality of products produced by industry is largely determined by labor productivity. Age and years of service are factors that can reduce or increase employee productivity. So labor productivity is very influential on company profits. This research was conducted at companies that produce automotive parts, aiming to determine the effect of age and years of service of employees on the level of productivity in the pruning process. In this study, we took a sample of 44 employees using the multiple linear regression method using Minitab software. In this study the independent or independent variables are age (X1) and years of service (X2), while to determine the variable is the level of employee productivity (Y). The results of the study, through data analysis, showed that the variables X1 (age) and X2 (years of service) did not affect Y (work productivity). The results of the classical assumption test obtained that the normality test results obtained a P-Value value of 0.010 < 0.05, the multicollinearity test obtained a VIF value of 23.38 > 10, and for the heteroscedasticity test it was found that the graph versus fit occurred in an orderly distribution. As for the results of the hypothesis test with the summary of the model that the factors X1 (age) and X2 (years of service) have little effect on Y (work productivity), which is only 4.3% and the remaining 95.7% is influenced by other factors that are not research variables.
Implementation of Measurement System Analysis to Reduce Measurement Process Failures on Part Reinf BK6
Authors: Sumasto Fredy , Nugroho Yesaya Abdi , Purwojatmiko B. Handoko , Wirandi Mohammad , Imansuri Febriza , Aisyah Siti
Published: July 2023

This study aims to reduce the failure of the measurement process on Part Reinf BK6 in the automotive industry which prioritizes accuracy and precision in the process to maintain product quality and customer satisfaction. This study used the measurement system analysis (MSA) method to analyze the Gage R&R on a measurement system, with 2 operators and 10 parts measured with 3 repetitions. The MSA results before improvement showed a Total Gage R&R of 67.80% with a repeatability value of 0.98% and a reproducibility value of 66.82%. The result indicated that the measurement system needs to be improved because the Gage R&R is still above 30%. After improving the measurement process by adding the Go No Go pin as an additional tool, the MSA results show the Total Gage R&R value after the improvement is made to 10.11% with repeatability and reproducibility values of 10.11% and 0% respectively. Based on the results of the study, it can be concluded that the improvements made have a significant effect on the measurement system on Part Reinf BK6. This will improve accuracy and precision in the measurement process, maintain product quality, and increase customer satisfaction. Therefore, improving the measurement system is very important in the automotive industry.
Foraging Bee Optimization Algorithm
Authors: Fasina Ebun Phillip , Sawyerr Babatunde Alade , Alkassim Shuaibu Babangida
Published: July 2023

Honey bee colonies depend on pollen and nectar from flowers for their feed. The act of searching for this flowers by the bees is called foraging. The foraging behaviour of bees depends on the profitability of nectar and pollen sources as well as the needs of the colony. This behaviour is modeled into an algorithm called Foraging Bee Optimization Algorithm (FBA). After initialization, the algorithm loops through three phases based on bees’ nature foraging behaviour called the 3W: Waggle, Work, and Withdraw. A large number of flowers are initialized randomly in the problem space. During the waggle phase, bees are recruited to patch with profitable nectar sources. In the work phase, new flowers are discovered and memorized by bees. In the withdraw phase bees eliminate unprofitable flowers and recalibrate for recruitment. The proposed FBA is tested on three unimodal and twelve multimodal benchmark. The result is compared with two state-of-the-art natured-inspired optimization algorithm.
The Determinants of Intellectual Capital Disclosure on Firm Value: The Evidence on the Financial Companies in Indonesia
Authors: Nasution Umar Hamdan , Iskandar Eddy , Rangkuti Sahnan , Idris Idris
Published: July 2023

Objectives: Firm value is the price of the firm that can be sold with a price agreement that will be paid by the buyer. A high stock price will increase the value of the company and increase the prosperity of the investors. Therefore, to attract the attention of buyers of company shares, companies must provide the best and most detailed financial information possible. As for information that can be disclosed in financial reports, namely intellectual capital. The presence of PSAK No. 19 concerning intangible assets marked the beginning of the phenomenon of intellectual capital in Indonesia. It turns out that although Intellectual Capital Disclosure has started to grow in Indonesia, the growth is still very small. Companies in Indonesia should be required to disclose their intellectual property, particularly in the financial industry. This is because the financial services sector which is highly dependent on information uses more intellectual capital in its operations than the industrial sector which relies more on tangible assets. As it is known, the disclosure of intellectual capital can provide an attraction for investors to increase the value of the company. This study aims to find out how factors such as firm age, leverage, profitability, and independent commissioners affect firm value through the disclosure of intellectual capital.Methodology: This study uses a sample of financial sector companies listed on the Indonesia Stock Exchange in 2020-2021 with a total population of 105 companies and a total sample of 83 companies. This research uses panel data.Finding: According to the findings of this study, business size, profitability, age, independent commissioners, and disclosure of intellectual capital have a beneficial impact on firm value of about 43%. However, leverage does not affect firm value. Furthermore, the mediation test results show that disclosure of intellectual capital is not able to mediate the relationship between the effect of firm size, leverage, profitability, and firm age on firm value. Only the influence of independent commissioners mediates firm value.Conclusion: For future researchers, it is expected to increase the research period and add other factors that influence the disclosure of intellectual capital.
Designing the Revisit Intention of the Tourism Model on Visiting the Borobudur Temple
Authors: Rahayu Sri , Kenamon Mardiah , Nazipawati Nazipawati , Yulitiawati Yulitiawati , Dona Eka Meiliya
Published: July 2023

Objectives: The purpose of this study was to determine and analyze how the perception of the destination and the visitor experience affected tourists' satisfaction when they visited Central Java Province (Borobudur Temple); how these factors also affected tourists' intention to return to Central Java Province; and how tourist satisfaction affected tourists' intention to return to Central Java Province (Borobudur Temple).Methodology: Data was collected from tourists who visited Indonesia's Borobudur temple as the survey's target population. In this study, surveys were conducted during a two-month period from June to August 2021 using the convenience sampling methodology. Through the use of an online survey and questionnaire, data was gathered. The SPSS for Windows 26 application was utilized for the linear regression analysis step in the data analysis process. Validity tests, reliability tests, and coefficient of determination tests were the analysis methods applied.Finding: The perception of a destination has a significant impact on visitor satisfaction, visitor perception also has a significant impact on visitor revisit intention, visitor experience also has a significant impact on visitor satisfaction, and visitor experience also has a significant impact on visitor revisit intention.Conclusion: More tourists will visit Borobudur Temple, the most beautiful temple in the world if the location has a positive and attractive image. Also, the experience of tourists has a big impact on how happy they are after seeing Borobudur Temple. If visitors to Borobudur Temple have an extraordinary experience, their satisfaction with their visit will increase. In addition, the experience of visitors has a huge impact on their plans to return; more and more people will visit Borobudur Temple if their happiness with the experience is fulfilled.
The Effect of Education, Recruitment and Work Facilities on Employee Performance and Job Satisfaction as Intervening Variables at PT GAG NIKEL
Authors: Sunatar Bambang
Published: July 2023

Objectives: The success of the company's institutions and organizations is inseparable from the support of its employees in seeking to improve their performance so that the ability and job satisfaction of its employees is very important to be given more attention to achieve the desired success or goals of the company. Therefore a company or organization must really pay attention to its employees by means of recruitment processes, education, and also work facilities that must support them. This is done in order to improve employee performance and job satisfaction.Methodology: The method used in this study is to use a quantitative descriptive method. This study uses the PLS SEM model analysis for data processing. The sample used uses a saturated sample, namely all employees of PT Gag Nikel, totaling 68 people.Conclusion: Recruitment and work facilities have a significant effect on job satisfaction. Recruitment and work facilities also have a significant influence on employee performance. While education has no significant effect on job satisfaction and education also has no effect on performance. Job satisfaction also has no significant effect on employee performance.