bluuebunny/crossref_metadata_2025 huggingface dataset:
Automatic Mapping of 10 m Tropical Evergreen Forest Cover in Central African Republic with Sentinel-2 Dynamic World Dataset
Authors: Zhao Wenqiong , Zhong Xinyan , Li Xiaodong , Wang Xia , Du Yun , Zhang Yihang
Published: February 2025

Tropical evergreen forests represent the richest biodiversity in terrestrial ecosystems, and the fine spatial-temporal resolution mapping of these forests is essential for the study and conservation of this vital natural resource. The current methods for mapping tropical evergreen forests frequently exhibit coarse spatial resolution and lengthy production cycles. This can be attributed to the inherent challenges associated with monitoring diverse surface changes and the persistence of cloudy, rainy conditions in the tropics. We propose a novel approach to automatically map annual 10 m tropical evergreen forest covers from 2017 to 2023 with the Sentinel-2 Dynamic World dataset in the biodiversity-rich and conservation-sensitive Central African Republic (CAR). The Copernicus Global Land Cover Layers (CGLC) and Global Forest Change (GFC) products were used first to track stable evergreen forest samples. Then, initial evergreen forest cover maps were generated by determining the threshold of evergreen forest cover for each of the yearly median forest cover probability maps. From 2017 to 2023, the annual modified 10 m tropical evergreen forest cover maps were finally produced from the initial evergreen forest cover maps and NEFI (Non-Evergreen Forest Index) images with the estimated thresholds. The results produced by the proposed method achieved an overall accuracy of >94.10% and a Cohen’s Kappa of >87.63% across all years (F1-Score > 94.05%), which represents a significant improvement over the performance of previous methods, including the CGLC evergreen forest cover maps and yearly median forest cover probability maps based on Sentinel-2 Dynamic World. Our findings demonstrate that the proposed method provides detailed spatial characteristics of evergreen forests and time-series change in the Central African Republic, with substantial consistency across all years.
Comparative Analysis of Prior and Posterior Integrity Monitoring Techniques for Enhanced Global Navigation Satellite System Positioning Continuity and Accuracy
Authors: Gao Yuting , Liu Baoyu , Gao Yang , Huang Guanwen , Zhang Qin
Published: February 2025

GNSS integrity is an essential component for ensuring the reliability of safety-critical applications using Global Navigation Satellite Systems (GNSSs). These applications, such as use in aviation and autonomous vehicles, demand high precision and dependability. There are two major GNSS integrity monitoring techniques, namely prior and posterior integrity monitoring. The principles of the two approaches, however, differ significantly, each influencing the GNSS positioning system’s continuity and accuracy performance in unique ways. In this study, we conduct a thorough evaluation and comparison of these two approaches to integrity monitoring, focusing on their effects on continuity and accuracy performance. We assess the probability of false alarms and continuity risks associated with posterior integrity monitoring by defining specific geometric spheres, both inside and outside the contours of the parity set, where the integrity risk requirement is satisfied. By using these defined spheres, we determine the lower and upper bounds for the probability of false alarms and continuity risks in posterior integrity monitoring. These spheres provide a novel and effective framework for comparing the continuity performance between the Chi-squared residual-based prior and posterior integrity monitoring. Our analysis highlights that, under fault-free scenarios, posterior integrity monitoring offers superior accuracy compared with the Chi-squared residual-based prior integrity monitoring approach. This finding underscores the critical importance of selecting an appropriate integrity monitoring strategy to enhance GNSS positioning system performance, particularly in environments where safety and precision are paramount. The insights gained from this study contribute to the advancement of GNSS technologies, supporting their implementation in an increasingly wide range of safety-critical applications.
A Critical Analysis of Cooperative Caching in Ad Hoc Wireless Communication Technologies: Current Challenges and Future Directions
Authors: Naeem Muhammad Ali , Ullah Rehmat , Chudhary Sushank , Meng Yahui
Published: February 2025

The exponential growth of wireless traffic has imposed new technical challenges on the Internet and defined new approaches to dealing with its intensive use. Caching, especially cooperative caching, has become a revolutionary paradigm shift to advance environments based on wireless technologies to enable efficient data distribution and support the mobility, scalability, and manageability of wireless networks. Mobile ad hoc networks (MANETs), wireless mesh networks (WMNs), Wireless Sensor Networks (WSNs), and Vehicular ad hoc Networks (VANETs) have adopted caching practices to overcome these hurdles progressively. In this paper, we discuss the problems and issues in the current wireless ad hoc paradigms as well as spotlight versatile cooperative caching as the potential solution to the increasing complications in ad hoc networks. We classify and discuss multiple cooperative caching schemes in distinct wireless communication contexts and highlight the advantages of applicability. Moreover, we identify research directions to further study and enhance caching mechanisms concerning new challenges in wireless networks. This extensive review offers useful findings on the design of sound caching strategies in the pursuit of enhancing next-generation wireless networks.
Security Performance Analysis of Downlink Double Intelligent Reflecting Surface Non-Orthogonal Multiple Access Network for Edge Users
Authors: Anh Nguyen Thai , Viet Nguyen Hoang , Do Dinh-Thuan , Silva Adão
Published: February 2025

In this work, we study the security performance of a double intelligent reflecting surface non-orthogonal multiple access (DIRS-NOMA) wireless communication system supporting communication for a group of two NOMA users (UEs) at the edge, with the existence of an eavesdropping device (ED). We also assume that there is no direct connection between the BS and the UEs. From the proposed model, we compute closed-form expressions for the secrecy outage probability (SOP) and the average security rate (ASR) for each UE. After that, we discuss and analyze the system security performance according to the NOMA power allocation for each user and the number of IRS counter-emission elements. In addition, we analyze the SOP of both the considered DIRS-NOMA and conventional NOMA systems to demonstrate that DIRS-NOMA systems have much better security than conventional NOMA systems. Based on the analytical results, we develop an ASR optimization algorithm using the alternating optimization method, combining NOMA power allocation factor optimization and IRS passive beam optimization through the Lagrange double transform. The derived analytical expressions are validated through Monte Carlo simulations.
A Quantitative Analysis Study on the Effects of Moisture and Light Source on FTIR Fingerprint Image Quality
Authors: Shin Manjae , Lee Seungbong , Baek Seungbin , Lee Sunghoon , Kim Sungmin
Published: February 2025

The frustrated total internal reflection (FTIR) optical fingerprint scanning method is widely used due to its cost-effectiveness. However, fingerprint image quality is highly dependent on fingertip surface conditions, with moisture generally considered a degrading factor. Interestingly, a prior study reported that excessive moisture may improve image quality, though their findings were based on qualitative observations, necessitating further quantitative analysis. Additionally, since the FTIR method relies on optical principles, image quality is also influenced by the wavelength of the light source. In this study, we conducted a preliminary clinical experiment to quantitatively analyze the impact of moisture levels on fingertips (wet, dry, and control) and light wavelengths (red, green, and blue) on FTIR fingerprint image quality. A total of 20 male and female participants with no physical impairments were involved. The results suggest that FTIR fingerprint image quality may improve under wet conditions and when illuminated with green and blue light sources compared to dry conditions and red light. Statistical evidence supports this consistent trend. However, given the limited sample size, the statistical validity and generalizability of these findings should be interpreted with caution. These insights provide a basis for optimizing fingerprint imaging conditions, potentially enhancing the reliability and accuracy of automatic fingerprint identification systems (AFIS) by reducing variations in individual fingerprint quality.
The Digital Divide and the Elderly: How Urban and Rural Realities Shape Well-Being and Social Inclusion in the Sardinian Context
Authors: Diana Maria Grazia , Mascia Maria Lidia , Tomczyk Łukasz , Penna Maria Pietronilla
Published: February 2025

The Digital Grey Divide (DGD) is a phenomenon that refers to the digital inequality existing among the elderly in using digital tools. DGD could generate social exclusion and hinder elderly well-being because today many aspects of life are online. The objective of the research is to compare the urban and rural group to see if a digital divide is present and whether psychological and cognitive well-being can be predictors of usage. The research involved 100 elderly people (belonging to two different areas: one rural and one urban) aged 65 to 90 (M = 72.3; SD = 6.4) with intact cognitive functioning investigated by the MMSE test. A socio-anagraphic module to investigate digital use (DU), a questionnaire on cognitive reserve (CRIq), and a questionnaire investigating well-being (Ben-SSC) were administered. Results showed that the two groups differ in terms of access and use of digital tools (F = 28.34, p < 0.001), with the urban group reporting higher levels of access and use. Moreover, in the urban group, psychological well-being has an inverse relationship with digital, while in the rural group, the relationship between cognitive well-being and use is direct. Therefore, the study aims to highlight how even in developed countries there can be a digital divide (DD) given the risks of exclusion, particularly for the elderly population. For all these reasons, it is necessary to pursue interventions to achieve a higher level of digitalization and sustainable development among the population. Given the importance of this phenomenon, it is necessary to address the issue of DD in various spheres of life: political, social, economic and care.
Prediction of Ship CO2 Emissions and Fuel Consumption Using Voting-BRL Model
Authors: Lin Yinchen , Wang Chuanxu
Published: February 2025

The accurate prediction of ship carbon dioxide (CO2) emissions and fuel consumption is critical for enhancing environmental sustainability in the maritime industry. This study introduces a novel ensemble learning approach, the Voting-BRL model, which integrates Bayesian Ridge Regression and Lasso Regression to improve prediction accuracy and robustness. Utilizing four years of real-world data from the THETIS-MRV platform managed by the European Maritime Safety Agency (EMSA), the proposed model first employs Analysis of Variance (ANOVA) for feature selection, effectively reducing dimensionality and mitigating noise interference. The Voting-BRL model then combines the strengths of Bayesian Ridge Regression in handling uncertainty and feature correlations with Lasso Regression’s capability for automatic feature selection through a voting mechanism. Experimental results demonstrate that Voting-BRL achieves an R2 of 0.9981 and a Root Mean Square Error (RMSE) of 8.53, outperforming traditional machine learning models such as XGBRegressor, which attains an R2 of 0.97 and an RMSE of 45.03. Additionally, ablation studies confirm that the ensemble approach significantly enhances predictive performance by leveraging the complementary strengths of individual models. The Voting-BRL model not only provides superior accuracy but also exhibits enhanced generalization capabilities and stability, making it a reliable tool for predicting ship CO2 emissions and fuel consumption. This advancement contributes to more effective emission management and operational efficiency in the shipping sector, supporting global efforts to reduce greenhouse gas emissions.
Evaluation of the Endowment of Geothermal Resources and Its Impact on Regional Industrial Structure: A Case Study of Qinghai Province (China)
Authors: Zhao Zhen , Qin Guangxiong , Yan Baizhong , Han Chuanlong
Published: February 2025

Geothermal resources are considered a clean energy source, and their development plays a key role in achieving sustainable development. This energy contributes to environmental protection, energy security, and economic growth, while also helping to alleviate energy poverty. Qinghai Province, rich in geothermal resources, holds significant potential for development. First, this study evaluated the geothermal resources in the uplifted mountainous regions of Qinghai Province using the volumetric method and analyzed their spatial distribution. Next, the degree of geothermal resource endowment was measured, and the relationship between geothermal resources and industrial structure was analyzed. Finally, the Vector Autoregression (VAR) model and impulse response function were applied to assess the impact and duration of geothermal resources on changes in the industrial structure from 2000 to 2020. Geothermal resources in Qinghai Province exhibit significant regional variation, with the northern and western regions being particularly rich in geothermal resources, peaking at 3.58 × 1017 J in Banma County. Geothermal resources in Qinghai are predominantly utilized for power generation, averaging 42.20% of energy consumption. The interplay between geothermal resource use and industrial structure is intensifying, notably in secondary and tertiary sectors. Initially restrictive, the influence of industrial structure on geothermal resource use is projected to become facilitative as clean energy technologies advance. This study revealed the relationship between geothermal resources and the local industrial structure in Qinghai Province, providing a scientific basis for the sustainable and efficient development and utilization of these resources. It contributed to the long-term sustainability of geothermal resource exploitation.
Relação entre estresse e hábitos de saúde em estudantes de cursos da área da saúde: uma revisão da literatura
Authors: Silva Amanda Carvalho da , Soares Marina Mendes , Silva Leonardo Oliveira Leão e , Marcondes Glaucia dos Santos
Published: February 2025

O estresse entre universitários da área da saúde é uma condição recorrente, resultante de cargas acadêmicas intensas e do contato precoce com situações clínicas desafiadoras. Este estudo objetiva investigar a relação entre comportamentos relacionados à saúde e os níveis de estresse nesses estudantes, identificando os principais fatores que contribuem para o aumento do estresse e como esses influenciam a adoção de práticas saudáveis. Para tanto, foi realizada uma revisão da literatura, utilizando estudos publicados nos últimos dez anos em bases de dados como PubMed, Scielo e LILACS. Os resultados apontam que fatores como sobrecarga acadêmica, baixa renda, dificuldade de equilibrar estudo e trabalho e ausência de práticas de autocuidado, como atividade física e suporte social, estão associados ao aumento do estresse. Além disso, comportamentos não saudáveis, como sedentarismo, má alimentação e uso de substâncias psicoativas, são frequentemente adotados por estudantes em situações de maior estresse. Conclui-se que intervenções institucionais voltadas para o suporte psicológico e a promoção de práticas saudáveis são fundamentais para mitigar os efeitos negativos do estresse e contribuir para a qualidade de vida e a formação acadêmica desses futuros profissionais da saúde. Este estudo reforça a relevância de estratégias que integrem suporte emocional e incentivo à adoção de comportamentos saudáveis no ambiente universitário.
Câncer de colo de útero no Pará: perfil epidemiológico entre os anos de 2013 e 2024
Authors: Silva Mayara dos Santos , Dias Karen Cristina de Miranda , Silva Cecília Gomes da , Srur Vitória Ribeiro Sabaa , Anjos Ana Vitória Soares dos , Telles Lucas Gabriel Xavier , Nascimento João Antonio Lopes do , Lopes Iracema dos Santos Silva
Published: February 2025

O câncer do colo do útero (CCU) é o 3º câncer mais incidente em mulheres no Brasil, responsável por altos índices de morbimortalidade, mesmo sendo um dos principais temas de abordagem pela Atenção primária à saúde (APS). Analisar o perfil epidemiológico do CCU no Pará permite compreender a incidência, impacto e mortalidade desta patologia para identificar déficits no serviço de saúde e fomentar políticas eficazes de prevenção e destacar padrões específicos relacionados à população paraense, envolvendo determinantes que não são identificados em análises nacionais. Objetiva-se, assim, identificar o perfil epidemiológico do CCU no Pará entre  2013 e 2024. Para tanto, procede-se ao estudo de caráter epidemiológico, descritivo, quantitativo e retrospectivo dos casos de CCU no Pará, a partir de exames citopatológicos cérvico-vaginais de 2013 a 2024, com adequabilidade satisfatória, registrados no Sistema de Informação do Câncer - SISCAN, disponíveis no DATASUS. Observou-se no período pesquisado 2.013.337 exames citopatológicos cérvico-vaginais adequados no estado. Desses, 80.663 estavam alterados e 1.313 apresentaram malignidade, com predomínio do carcinoma epidermoide invasor. A faixa etária mais acometida foi de 40 a 44 anos e a distribuição geográfica variou entre municípios, destacando a necessidade de estratégias regionais. Houve subnotificação na escolaridade e disparidade racial, com maior incidência na raça "Amarela". Diante disso, é essencial fortalecer o rastreamento e políticas de prevenção, especialmente na Região Norte, onde a incidência do CCU é elevada.
El sistema de gestión económico y financiero para instituciones no lucrativas
Authors: Afana María de Jesús Esono , Ondó Pergentino Esangui , Pérez Miguel Ramón Torres
Published: February 2025

La gestión económico-financiera, es esencial para lograr los objetivos de las instituciones. Algunas instituciones públicas sólo ofrecen informaciones a niveles superiores, limitando la toma de decisiones propias. La interrogante científica, ¿qué fundamentos teóricos utilizar para presentar una propuesta de Sistema de Gestión Económico-financiero para instituciones públicas que ofrezca soluciones a las necesidades existentes en las mismas? La respuesta parte de la Teoría de los Sistemas. Los métodos utilizados responden al carácter cualitativo de la investigación, la hermenéutica para la revisión bibliográfica, el análisis y síntesis, la inducción y la deducción, entre otros. Se han encontrado puntos coincidentes que vinculan la teoría con la práctica que permitirá preparar una propuesta de Sistema de Gestión Económico y Financiero para instituciones públicas.
Catastro multipropósito y gestión territorial en Kimbiri, legado de buenas prácticas para municipios en desarrollo
Authors: Santiago Meddaly Sudey Amaya , Sánchez Anthony Ronald Martínez , Cavero Dina Rosmery Timoteo , Carvo Juan Andre Muñoz , Curasma Catherine Roxana Laura
Published: February 2025

El objetivo del presente artículo es describir las buenas prácticas adoptadas por la Municipalidad Distrital de Kimbiri, pionera en catastro multipropósito y gestión territorial en el Valle de los ríos Apurímac, Ene y Mantaro (VRAEM). Es importante destacar que las buenas prácticas se realizan a través de la implementación de herramientas, políticas y procesos adoptados para generar instrumentos de gestión con data gráfica y alfanumérica, que ha beneficiado a través de usos múltiples a la gestión local y sobre todo a la población de Kimbiri. Desde el 2021, se viene adoptando buenas prácticas, con énfasis en el fortalecimiento de capacidades en catastro, gestión territorial e implementación de un Sistema de Información Geográfica para la Gestión Catastro Municipal (GLGIS). Invirtiendo en la capacitación de funcionarios, generación de cartografía georreferenciada y actualizada mediante vuelo fotogramétrico, proporcionando base de datos integral que permite a las autoridades locales la toma decisiones informadas y eficientes en cuanto a la planificación urbana, uso de suelo, desarrollo económico, participación comunitaria y colaboración interinstitucional.
Este enfoque promueve la gobernanza participativa y tecnológica por medio del uso de herramientas e instrumentos que sirve como modelo para otros municipios en desarrollo, demostrando que la confluencia del catastro multipropósito y la gestión territorial implementado adecuadamente promueve un desarrollo territorial sostenido y eficiente mediante decisiones informadas.
Environmental Accounting-An Analytical Approach with special reference to India
Authors: Das Pradip Kumar
Published: February 2025

Proclivity apropos global warming and environmental devastation worldwide has been big issue. Environmental accounting has appeared as an intrinsic mechanism for adjudging the financial aftermath of environmental sustainability, principally in nascent economy like India. Rationale for this study rests in growing environmental challenges and crappy tie-in of ecological costs into corporate accounts. Howbeit statues, challenges outlive in successful execution of environmental accounting systems. The central premise of this study is to reconnoitre the theoretical underpinnings of environmental accounting in India, examining its challenges, opportunities and preventive measures. A cognitive strategy has been echoed, enveloping an in-depth literature study, legislation, and corporate green reports to decipher mainstream techniques. The study further delineates bottom issues frinstance unstandardized reporting guidelines, limited corporate fervor, and lacuna in compliance oversight. To accost these challenges, the paper insinuates robust regulatory passivity, reformed exposure tenets, and implementation of all-inclusive accepted accounting policies conducive to India's socio-economic environment. Thereby, with getting rampant of environmental accounting, its acceptance continues incoherent and tricky. Notwithstanding scientists and  politicians are sussing for environmental issues, corporate need receptive of that a resilient future postulates green accounting for them.  The analysis demonstrates that a methodical and oversight model, beyond corporate commitment and stakeholder rendezvous, is indispensable for harmonizing ecological themes into lamestream accounting approached in India.
Nilo Romero e a Fazenda Conquista
Authors: Romero Míriam
Published: February 2025

.
A hydrologic engineering analysis of a failed rangeland water control structure on the Buenos Aires national wildlife refuge
Authors: Dorsett Cameron K. , Slack Donald C. , Nichols Mary H. , Didan Kamel
Published: February 2025

This report summarizes a hydrologic engineering analysis of a failed concrete drop spillway (broad-crested weir) water control structure at the outlet or “pour point” on the Buenos Aires National Wildlife Refuge (BANWR) watershed southwest of Tucson, AZ. The main objective was to determine the maximum flow the structure could pass without failure (discharge capacity) as well as the rainfall recurrence interval and duration which would result in a flood of a magnitude which would exceed the capacity of the spillway and thus likely lead to failure of the structure. The layout, function, and characterization of the watershed was established using modern software programs and available imagery. The discharge capacity of the concrete drop spillway was found to be 21.1    [m3s-1]. After evaluating results obtained from the Rational Method and the Curve Number (CN) Method (with assumptions of closed upper-watershed gates and stock pond retention having no effect), the spillway capacity was adequate to withhold runoff volumes generated from 10-yr to 25-yr recurrence interval rainfalls of variable durations and intensities provided the spatial extent of rainfall was limited to one of the two small sub-watersheds (Sub-watersheds A and B). However, if rainfall occurred over the entire watershed or Sub-watershed C then the spillway capacity was exceeded by runoff volumes generated for 10-yr and 25-yr recurrence interval rainfalls of all durations as well as all generated design storms of greater magnitude and intensity.
Avaliação de métodos alternativos para substituição do formaldeído na conservação de peças anatômicas didáticas
Authors: Resende Guilherme Augusto , Ferreira Júnior Cássio Ricardo , Silva Lucas Gabriel Borges Luiz da , Cançado Vítor Ferreira , Lacerda João Pedro Ferreira
Published: February 2025

O presente experimento objetivou -se avaliar metodologia alternativas ao uso do formaldeído 10% na conservação de peças anatômicas considerando que a substância é comprovadamente danosa para saúde humana. O experimento consistiu em submeter peça anatômicas a três substâncias diferentes: Formalina 10% sendo o grupo controle, solução salina a 30% e álcool etílico a 70%.
A avaliação dos resultados foram realizados em períodos distintos e os parâmetros foram à coloração, odor, consistência, elasticidade e presença de contaminação microbiológica. Foram observados nos resultados que todos os três métodos são eficazes na conservação das peças, a solução salina possui boa eficácia em para manter a integridade dos tecidos e possuir maior seguridade toxicológica, apesar de enrijecer as peças em maior grau comparado aos outros métodos. O álcool 70% apresentou resultados satisfatórios se tratando da conservação, com coloração satisfatória e odor tolerável, porém possui efeito desidratante que causa comprometimento da flexibilidade das peças. O formaldeído 10% apresentou condições de limitação, com alterações de coloração, enrijecimento e risco a saúde humana. Pode se afirmar que a salina a 30% e o álcool etílico a 70% são substâncias viáveis para substituição do formaldeído nos laboratórios de estudos anatômicos, são menos tóxicos, e possuem aceitação melhor entre os manipuladores devido sua seguridade e aspectos de conservação.
Os efeitos da quimioterapia na qualidade de vida de cães e gatos na oncologia veterinária
Authors: Fagundes Daiane Paraguassú
Published: February 2025

Na medicina veterinária o uso da quimioterapia como tratamento nos cães e gatos vem crescendo cada vez mais, principalmente devido ao aumento da casuistica de doenças neoplásicas nos animais de companhia. Mas deve-se lembrar que o o uso desses fármacos antineoplásicos está frequentemente associado à ocorrência de efeitos adversos e as alterações da qualidade de vida dos pacientes oncológicos e em diversas vezes por falta de informação ou experiência motivo de desistência dos tutores no tratamento desses animais.
Implantar questionários detalhados pode e deve fazer parte da rotina do Médico Veterinário na vida desses pacientes e é fator determinante para a avaliação de efeitos colaterais dos quimioterápicos, contribuindo como parâmetro na avaliação da qualidade de vida dos pacientes.
Ao instituir a quimioterapia como tratamento no protocolo antitumoral de cães e gatos, o maior objetivo dessa terapia é a melhora ou manutenção da boa qualidade de vida do pacientes. É indispensável que alguns cuidados sejam tomados no momento da decisão pela quimioterapia, ter uma boa comunicação com o tutor, considerar a expectativa do tutor em relação ao tratamento, considerar o âmbito familiar levando em conta classe social, estado clinico geral do paciente, tipo histológico da neoplasia, estadiamento e expectativa de vida do animal. Deve-se também classificar o tipo de quimioterapia que será instituída, seja ela curativa, paliativa e dentro desses protocolos as suas modalidades como a quimioterapia com dose máxima tolerada, quimioterapia metronômica e etc.
Desain Alat Penggerak Fuse Carrier pada Fuse Cut Out untuk Jaringan Tegangan Menengah
Authors: Bahasa Indonesia Bahasa Indonesia , Suryono  , Wahjono Endro
Published: February 2025

Fuse Cut Out (FCO) merupakan alat pemisah pada jaringan tegangan menengah, pelepasan FCO dilakukan dengan memisahkan kontak atas dengan fuse carrier. Cara pelepasan fuse carrier pada umumnya masih menggunakan metode manual dengan peralatan khusus yaitu tongkat stick. Pada penelitian ini pelepasan fuse carrier dilakukan dengan proses mekanik yang telah dirancang dengan perintah dari remot kontrol dan untuk pengujian alat ini dilakukan pada tegangan 223 Volt AC. Rancangan remot kontrol mampu memberikan sinyal perintah dengan jarak maksimum 19 m pada kondisi realtime. Kontruksi mekanik disesuaikan dengan standar clearance distance pada jaringan tegangan menengah dan diperoleh hasil pembuatan mekanik terhadap kontak atas dengan jarak lepas fuse carrier sebesar 0,27 m serta kontak atas dengan aktuator pneumatik sebesar 0,20 m, rancangan sistem aktuator pneumatik menggunakan sistem udara dengan tekanan antara 4 hingga 7 bar. Konstruksi alat penggerak fuse carrier dalam penelitian ini digunakan pada pelepasan FCO sehingga pelepasan FCO tidak lagi tergantung dengan menggunakan tongkat stick.
Rancang Bangun Alat Monitoring Getaran Dan Suhu Mesin Nirkabel
Authors: Nugroho Oktavianus Ardhian , Setiady Wahyu , Susanto Joko , Adittya Evan , Hadiani Wijayanti Sylvia , Karimayanti Antonia
Published: February 2025

PT. Tata Metal Lestari (PT.TML) merupakan perusahaan yang memproduksi Baja Lapis Alumunium Seng dan Baja Lapis Seng yang digunakan untuk bahan baku baja ringan dan produk konstruksi lainnya. Mesin yang digunakan dalam proses produksinya PT. TML banyak menggunakan motor motor besar berjenis AC 3 Phase sebagai tenaga pegerak dari mesin-mesinnya. Oleh karena itu motor motor yang ada membutuhkan proses perawatan yang sangat ketat dengan melakukan pengukuran dan pencatatan getaran dan suhu motor penggerak setiap hari. Untuk mengatasi hal tersebut Politeknik Industri ATMI (Poin ATMI) bekerja sama dengan PT. TML bersama sama mengembangkan sebuah alat yang bertujuan mengkoleksi data kondisi motor secara cepat dan memberikan peringatan secara langsung kepada tim maintenance jika ada kondisi yang abnormal. Metode Analisis dan Desain yang dipakai dalam penelitian ini berhasil membuat alat system monitoring getaran dan suhu mesin nirkable yang dapat menditeksi getaran dan suhu pada motor mengunakan jaringan nirkable yang dapat ditampilkan kedalam sebuah layar sehingga dapat membantu tenaga maintenance PT. TML. Selain itu alat yang dibuat memiliki ukuran 70 x 70 x 40 mm yang membuat alat ini berukuran kecil dan dirancang untuk bisa dipasang di segala kondisi dan posisi sesuai dengan permintaan PT. TML.
Influencia de períodos secos y húmedos en el rendimiento de cultivos de invierno para la Región Sudoeste de Buenos Aires
Authors: Carmona Facundo , Diez Jorge Francisco , Orte Pablo Facundo , Laino Baldini Crtistian Ariel
Published: February 2025

En este trabajo se aborda el impacto de los períodos secos y húmedos en el rendimiento de cultivos de trigo y cebada, en el sudeste de la provincia de Buenos Aires. Para evaluar el grado de condición de sequía/humedad de cada período se utilizó el Índice Estandarizado de Precipitación y Evapotranspiración (SPEI). Por otro lado, se utilizaron datos de rendimiento de cultivo a nivel de partido de la Secretaría de Agricultura, Ganadería y Pesca de Argentina. Utilizando un modelo cuadrático, se analizó la relación SPEI-rendimiento para el período 2001-2023. A partir de un análisis multiescalar se determinó que el balance hídrico vertical entre la pre-siembra y el periodo crítico (mayo-octubre) es crucial para la productividad final de los cultivos de invierno en la zona de estudio. Se encontraron relaciones SPEI-rendimiento con coeficientes de correlación de 0.76 para trigo y de 0.68 para cebada con SPEI de dos meses antes de la cosecha. Finalmente, se observaron tanto para condiciones altas/extremas de sequía como de humedad impactos similares sobre el rendimiento de los cultivos analizados, con reducciones de entre 27% y 34%, con una mejor respuesta por parte de la cebada a condiciones extremas.
The Legacy of World War II Cryptologist Alva B. Lasswell
Authors: Nedved Gregory J.
Published: February 2025

The story of Alva B. Lasswell is becoming better known within the Marine Corps. The abridged version is that his cryptanalytic acumen greatly facilitated victory at Midway in June 1942 and the shootdown of Admiral Isoroku Yamamoto’s aircraft in April 1943. The unabridged version, revealed in this article, shows that his cryptologic contributions were far greater than this. In fact, his contributions continue to affect Marine cryptology to this day, a remarkable feat when one considers that he left the field for good even before World War II ended. Indeed, his Marine Corps legacy has not only grown, it has expanded in ways he never would have anticipated.
The Atomic Crucible: Forging Tactics in the Shadow of the Bomb
Authors: Billard Jr. Robert
Published: February 2025

The emergence of the atomic bomb prompted the U.S. Marine Corps to develop tactics and procedures to maneuver within a nuclear environment. This led to the establishment of Marine Corps Test Unit no. 1 (MCTU 1), which represented a unique chapter in the history of the Corps. Established in 1954, this experimental unit served as a testing ground for developing tactics and doctrines in the nascent age of nuclear warfare. This article explores the motivations behind the MCTU’s creation, analyzing what the Marine Corps hoped to achieve in this new strategic landscape. It explores the training conducted during Exercises Desert Rock IV (1952) and V (1953) with provisional atomic brigades, then examines the MCTU’s development and accomplishments, including its participation in Exercises Desert Rock VI (1955) and VII (1957) and its role in refining doctrine. Finally, the article delves into the long-term impacts of both MCTU 1 and atomic testing, assessing its influence on the evolution of Marine Corps force reconnaissance, heliborne tactics, and the enduring legacy of its research on nuclear combat scenarios.
Perspectives from the new president of the Korean Society of Occupational and Environmental Medicine: future strategies for occupational and environmental medicine
Authors: Ko Sang Baek
Published: February 2025

Modern Korean society is experiencing fundamental transformations in industrial structures and working environments driven by complex factors, including demographic shifts, the Fourth Industrial Revolution, the coronavirus disease 2019 pandemic, and digital transformation. The evolving dynamics between the manufacturing and service industries, the emergence of technology-driven sectors, and the proliferation of new occupational categories are reshaping traditional employment models. This has directed the labor market toward nonstandard employment forms, including temporary, contract-based, and platform labor. Consequently, issues such as employment instability and reduced accessibility to workplace health programs, including occupational safety training, health examinations, and workplace health management, have become increasingly prominent. Although occupational and environmental medicine has subsequently gained significance, the current occupational health and safety framework inadequately addresses the nuances of emerging labor forms. Legal gaps persist, leaving vulnerable groups such as nonregular workers, platform laborers, and older workers insufficiently protected under existing systems. Furthermore, systemic issues are evident in the inadequate follow-up care during occupational health examinations, lacking continued adherence to hazard-centric approaches, and insufficient attention to chronic diseases and mental health challenges. This study proposes strategies that occupational and environmental medicine can address these issues. First, legal and institutional reforms must encompass new labor forms, accompanied by modernized safety and health guidelines. Second, state-of-the-art technologies should be leveraged to enhance predictive disease management and personalized healthcare for workers. Third, a preventive approach integrating chronic disease management, mental healthcare, and psychosocial risk factors must be established. Fourth, fostering interdisciplinary research collaboration across medicine, engineering, and psychology is essential for developing practical solutions to emerging challenges. In conclusion, occupational and environmental medicine in Korea must adapt to effectively address the evolving labor landscape. Through systematic innovation, integrated health-management approaches, technological advancements, and interdisciplinary cooperation, the health and safety of all workers in the rapidly changing world can be ensured.
PENGARUH JUMLAH TENAGA KERJA DAN PENDAPATAN ASLI DAERAH (PAD) TERHADAP PERTUMBUHAN EKONOMI DI PROVINSI JAMBI (TAHUN 2018-2022)
Authors: Nur Aini Mariska , Ningsih Putri Apria , Fusfita Nurlia
Published: February 2025

This study aims to determine the effect of Jambi Province's economic growth on the number of workers and local revenue. This quantitative research uses secondary data from the Central Statistics Agency (BPS) and the Directorate General of Financial Balance (DJPK) for the 2018–2022 period. This data consists of time series and cross-sections. The Random Effect Model (REM) panel data regression method is used. The results of this research show that the t test influences the economic growth of Jambi Province positively and significantly, while the f test shows that the number of workers and local income influence the economic growth of Jambi Province simultaneously or simultaneously.
Keywords: Labor, Regional Original Income, Economic Growth
PERHITUNGAN HARGA POKOK PRODUKSI MENGGUNAKAN METODE VARIABLE COASTING SEBAGAI DASAR PENENTUAN HARGA JUAL (STUDI KASUS PADA PT. ARKHA JAYANTI PERSADA)
Authors: Putri Winata Elsa , Afif M. Nur , Triwidatin Yuppy
Published: February 2025

The purpose of this study was to determine the calculation of the cost of goods manufactured, the calculation of the cost of goods manufactured using the variable costing method, changes in the method of calculating the cost of goods manufactured and determining the new selling price at PT Arkha Jayanti Persada. The research method used qualitative method with a case study approach, and data analysis using descriptive analysis. The results showed that the calculation of the cost of goods produced as the basis for determining the selling price carried out by the company was still very simple, the company only calculated using cost estimates. Meanwhile, the calculation of the cost of production according to the company has a difference with the calculation of the cost of production using the variable costing method, namely in the calculation according to the company the cost of production for one unit of 35 m3 hino dumb truck is Rp172,438,738 and the cost of production based on the variable costing method is Rp174,792,318. In addition, the company's selling price calculation has a difference with the variable costing method, namely that the company sets it based on estimates so that there is no specific percentage set by the company to achieve the desired profit.
PENGARUH PROFITABILITAS DAN UKURAN PERUSAHAAN TERHADAP MANAJEMEN LABA DENGAN FINANCIAL DISTRESS SEBAGAI VARIABEL MODERASI (Studi Pada Perusahaan Perdagangan Ritel MakananYang Terdaftar di Bursa Efek Indonesia Periode 2019-2021)
Authors: Suciati Laras , Hambani Susy , Warizal Warizal
Published: February 2025

This study aiims to determine the effect of profitaibility aind compainy size to eairnings mainaigement with finainciail distress ais ai moderaiting vairiaible in food retaiil traiding compainies listed on the Indonesiai Stock Exchainge during the 2019-2021 period. This type of reseaiirch is descriptive reseaiirch with quaiintitaiitive aiipproaiich. The results showed thaiit profitaiibility aiiffects on eaiirnings maiinaiigement. The size of the compaiiny haiis no effect on eaiirnings maiinaiigement. Then the results of moderaiition regression testing showed thaiit finaiinciaiil distress aiis aii moderaiition vaiiriaiible in this study showed thaiit it could not moderaiite the effect of profitaiibility on eaiirnings maiinaiigement. Finaiinciaiil distress vaiiriaiibles thaiit moderaiite firm size with eaiirnings maiinaiigement show thaiit finaiinciaiil distress caiin aiict aiis aii moderaiitor thaiit strengthens the interaiiction between firm size aiind eaiirnings maiinaiigement.
ANALISIS PENERAPAN METODE PENYUSUTAN ASET TETAP (DEPRESIASI ASET TETAP ) ( Studi Kasus Di PT. Mutiara Global Industry )
Authors: Andira Ayu , Alfif Muhammad Nur , Triwidatin Yuppy
Published: February 2025

PT. Multialral Globall Indulstri which is al steel engineering alnd falbricaltion compalny, al compalny engalged in falbricaltion, of coulrse, this compalny hals valriouls types of fixed alssets. Some of the fixed alssets thalt alre very importalnt to sulpport the compalny's operaltionall alctivities alre bulildings, lalnd, construlction tools, vehicles alnd office inventory. However, the benefits provided by fixed alsset alre decrealsing over time becalulse of their continulouls ulse, calulsing shrinkalge (except for lalnd). Deprecialtion in fixed alssets will disculss the clalssificaltion of fixed alssets, the alcqulisition of fixed alsset, the method off deprecialtion of fixed alssets alnd the recording of deprecialtion expenses of fixed alssets. Thuls, seeing how importalnt the fixed alsset deprecialtion method alpplied by the compalny is, it is requlired to alpply al good alnd alpproprialte fixed alsset deprecialtion method als aln informaltion mediulm for the malnalgement to optimize the ulse of the compalny's fixed alssets, becalulse with the palssalge of time, the economic vallule of al fixed alsset mulst be chalrged alpproprialtely alnd one of the walys is too determine the deprecialtion methode. Differen deprecialtion ‘method will resullt in different alllocaltion of deprecialtion costs so thalt it will alffect the cost of goods sold alnd operalting expenses which alffect the almoulnts of profit thalt the compalny will ealrn. The daltal alnallysis techniqule ulsed is qulallitaltive descriptive. This resealrch is intended to investigalte the circulmstalnces, conditions or other things thalt occulr alt PT. Multialral Globall Indulstry regalrding the proper alpplicaltion of fixed alssets alnd the resullts caln be presented in the form of al resealrch report.The compalny implements al deprecialtion policy determined by the malnalgement of PT. Pealrl Globall Indulstry itself. There is al deprecialtion ralte thalt is allso determined by PT. Multialral Globall Indulstry, 25% for fixed alssets thalt halve al ulsefull life of 8-20 yealrs alnd 50% for fixed alssets thalt halve al ulsefull life of 4-7 yealrs. PT. Multialral Globall Indulstry ulses the stralight line method. The realson for PT. Multialral Globall Indulstry ulses this stralight line method becalulse this deprecialtion method is considered ealsy alnd simple in its implementaltion. The resullt of callcullalting deprecialtion expense in 2017 ulsing the stralight line method is Rp. 139,021,375 while when callcullalted ulsing the doulble declining ballalnce method is Rp. 118,886,927 alnd when callcullalted by the method of the nulmber of yealrs is Rp. 128,538,396. Allthoulgh the callcullaltion with the stralight-line method of deprecialtion bulrden in 2017 seems lalrge, this method is ealsy to implement alnd the almoulnt of deprecialtion ealch yealr is the salme.
ANALISIS EFEKTIFITAS DAN KONTRIBUSI BEA PEROLEHAN HAK ATAS TANAH DAN BANGUNAN PADA PENDAPATAN ASLI DAERAH DI KABUPATEN BOGOR (Tahun 2017-2019)
Authors: Sundari Anugrah , Mukmin Mas Nur , Hambani Susi
Published: February 2025

The pulrpose of this stuldy is to alnallyze the Effectiveness alnd Contribultion of Lalnd alnd Bulilding Rights Alcqulisition Dulty (BPHTB) on Regionall Originall Revenule (PAlD) in Bogor Regency in 2017 -2019.  Qulallitaltive descriptive resealrch design ulsing daltal testing in the form of Effectiveness Alnallysis alnd Contribultion Alnallysis.  Alnallysis of the Effectiveness of Lalnd alnd Bulilding Rights Alcqulisition Dulty (BPHTB) on Regionall Originall Revenule (PAlD) in Bogor Regency in 2017-2019 hals aln alveralge effectiveness ralte of 132.4%. This shows thalt the performalnce of the locall government of Bogor Regency in collecting Lalnd alnd Bulilding Rights Alcqulisition Dulty (BPHTB) talx on Regionall Originall Revenule (PAlD) is qulite good or inclulded in the very effective interpretaltion criterial als al percentalge of effectiveness of more thaln one hulndred percent. Alnallysis of the contribultion of Lalnd alnd Bulilding Rights Alcqulisition Dulty (BPHTB) to Regionall Originall Revenule (PAlD) in Bogor Regency in 2017-2019 hals aln alveralge contribultion ralte of 24.6%. This shows thalt the Alnallysis of the Contribultion of Lalnd alnd Bulilding Rights Alcqulisition Dulty (BPHTB) talx revenule to Regionall Originall Revenule (PAlD) in Bogor Regency in 2017-2019 is increalsing every yealr allthoulgh it is not too significalnt. This caln be caltegorized into the Mediulm criterion becalulse it is in the ralnge of 20.10% to 30%.
 
Keywords : Effectiveness, Contribultion, BPHTB, PAlD.
ANALISIS RASIO KEUANGAN DAN ALTMAN Z-SCORE UNTUK MENILAI KINERJA KEUANGAN SERTA MEMPREDIKSI KEBANGKRUTAN PADA PT. TANDES LAUTAN PERIODE 2016-2019
Authors: Yoga Dwi Yoga Imam Baskoro , Kusuma Indra Cahya , Setiawan Ade Budi
Published: February 2025

This study was conducted to analyze financial ratios and altman z-score to assess financial performance and predict bankruptcy at PT. Tandes Lautan in 2016-2019. This study uses a quantitative descriptive method by calculating and analyzing liquidity ratios, solvency ratios, profitability ratios and activity ratios as well as analyzing bankruptcy with the Altman z-score method. The results of the analysis show that (1) the liquidity ratio in 2016-2019 is assessed from the current ratio, quick ratio and cash ratio is not good (2) the solvency ratio in 2016-2019 is assessed from the debt to asset ratio, debt to equity ratio, long term debt to equity ratio is not good (3) the profitability ratio in 2016-2019 is assessed from the gross profit margin in good condition, assessed from the operating profit margin, net profit margin, return on assets, return on equity is not good (4) activity ratio in 2016 -2019 is judged from poor receivable turn over, inventory turn over, working capital turn over, fixed assets turn over in good condition, and total assets turn over not good (5) Z Score calculation from 2016-2019 the value is below 1, 1 which is called the bankruptcy value.
ANALISIS RASIO KEUANGAN SEBAGAI ALAT PENGAMBILAN KEPUTUSAN PADA BADAN USAHA MILIK DESA (BUMDES) BAROKAH TUGU UTARA PERIODE 2017 – 2021
Authors: Yunita Yuni , Lasmana Andy , Afif Muhamad Nur
Published: February 2025

Penelitian ini bertujuan untuk mengevaluasi penggunaan analisis rasio keuangan sebagai alat pengambilan keputusan pada Badan Usaha Milik Desa (BUMDes) Barokah Tugu Utara periode 2017-2021. Menggunakan pendekatan deskriptif analitis, studi ini menganalisis rasio likuiditas, solvabilitas, aktivitas, dan profitabilitas BUMDes. Hasil penelitian menunjukkan bahwa BUMDes memiliki likuiditas dan solvabilitas yang baik, namun masih perlu meningkatkan efisiensi operasional dan profitabilitasnya. Rasio likuiditas dan solvabilitas berada di atas atau sebanding dengan standar industri, sementara rasio aktivitas dan profitabilitas masih di bawah standar. Berdasarkan temuan ini, penelitian merekomendasikan beberapa strategi untuk meningkatkan kinerja keuangan BUMDes, termasuk optimalisasi penggunaan aktiva lancar, peningkatan efisiensi pengelolaan persediaan dan piutang, serta diversifikasi usaha. Penelitian ini menyimpulkan bahwa analisis rasio keuangan dapat menjadi alat yang efektif dalam pengambilan keputusan untuk meningkatkan kinerja BUMDes Barokah Tugu Utara.
Kata kunci: BUMDes, rasio keuangan, pengambilan keputusan