bluuebunny/crossref_metadata_2025 huggingface dataset:
AZ31 Magnesium Alloy in the Aerospace Industry: A Review on the Effect of Composition, Microstructure, and Mechanical Properties on Alloy Performance
Authors: Tur Erkan , Öztürk Fahrettin
Published: November 2024

This comprehensive review article overviews AZ31, a highly researched magnesium alloy known for its exceptional mechanical properties, lightweight nature, and corrosion resistance. It covers the alloy's composition, microstructure, mechanical properties, applications, and prospects. AZ31's microstructure is influenced by its aluminum (Al) and zinc (Zn) composition, resulting in significant magnesium-aluminum intermetallic phase formation, critical for tailoring the alloy's properties to meet specific application needs. AZ31 exhibits impressive specific strength, excellent castability, and favorable ductility influenced by alloying elements, microstructure, and processing methods. The article discusses manufacturing processes like casting, rolling, and extrusion, which impact the alloy's microstructure and mechanical properties. It also explores the corrosion behavior of AZ31, emphasizing factors affecting corrosion resistance and strategies for improvement. Due to its lightweight properties, high strength-to-weight ratio, and electromagnetic shielding capabilities, AZ31 is widely used in various industries, including automotive, aerospace, electronics, and biomedical. Ongoing research focuses on alloy modifications, surface treatments, and additive manufacturing to enhance AZ31's properties and address challenges like limited formability and corrosion resistance. This review article is a valuable resource for researchers, engineers, and professionals exploring AZ31's potential for lightweight materials and diverse applications in different industries.
Nanomechanical Behavior of Top and Bond Layer in TBC
Authors: Akdemir Müge , Canbolat Merve , Bayram Serra , Kılıç Yasemin , İnceyer Ahmet Arda , Aydin Huseyin , Çimenoğlu Hüseyin
Published: November 2024

Thermal barrier coatings (TBC) have been developed to reduce the surface temperature of hot components in gas turbine engines. To get superior oxidation and mechanical properties, “The Yttria Stabilized Zirconia (YSZ)” top coat and β-NiAl bond coat are deposited by Electron Beam Physical Vapor Deposition (EB-PVD) and Chemical Vapor Deposition (CVD) processes, respectively. In this study, after structural characterization of the TBC formed on the directionally solidified (DS) CM247LC superalloy, the nanomechanical properties of the top and bond coats were determined using the nanoindentation technique. The results showed no significant differences in their elastic modulus despite the more than two times higher hardness of the top coat than the bond coat (18.4 GPa and 7.2 GPa, respectively). Energy Dispersive Spectrometry (EDS) equipped with Scanning Electron Microscope examinations revealed that Al and N- and N-rich zones within the bond coat have an underlying diffusion zone. In addition, thermal-grown oxide (TGO) film was detected at the interface of the top and bond coat.
A Remaining Useful Life Approach using an Ensemble Regressor enhanced with Hilbert Transform and CNN-LSTM Model
Authors: Adebayo Azeez , Kaplan Kaplan , Ertunç Hüseyin Metin
Published: November 2024

In this study, we propose a hybrid approach that integrates signal-driven and knowledge-based techniques to estimate the Remaining Useful Life (RUL) of bearings. The experimental data for this research is sourced from the FEMTO-ST Institute. Firstly, the horizontal and vertical acceleration data is ordered chronologically by time, and a band-pass filter is used for early-stage preprocessing of the vibration signals below 20 kHz. Then, the overall behavior of the signal is characterized by Hilbert-Transform. For the feature extraction scheme, a model that integrates Convolutional Neural Networks (CNN) and Long Short-Term Memory (LSTM) networks is implemented. These features form historical data on health indexes describing fault stages and are as such used to fit a voting regressor yielding an extrapolated future. The voting regressor is based on support vector regression (SVR) and linear regressor methods and a fault threshold is determined as 0.8 based on prior experiments. Finally, the proposed methodology distinguishes itself by recording the smallest average percentage error on the FEMTO dataset. This method proves that early-stage predictions are possible with run-to-failure data provision ranging from 60% and above, averaging some 1400 seconds into the future implying its suitability and effectiveness for real industrial applications.
Kinematics-Based Motion and Balance Control of a Six-Legged Spider Robot
Authors: Vardar Enes , Işık Kenan , Ertunç Hüseyin Metin
Published: November 2024

In this study, the kinematics of a hexapod spider robot with 18 joints, consisting of 3 joints per leg, were modeled. The aim was to provide a theoretical framework for algorithms enabling the robot to walk, change direction, and control its body coordinate system. A novel and parametric approach was taken by creating a model instead of a table listing joint positions for various scenarios typically used in spider robot motion trajectories. Initially, the kinematic model of the hexapod robot was established using the D-H method. Subsequently, algorithms derived from kinematic equations were tested in a simulation environment to enable walking, rotation, and movement within the body's coordinate system. The simulation visualized movement trajectories without relying on mathematical libraries or specific programming languages, ensuring flexibility across different environments. Results from simulations and experimental tests demonstrated realistic movement capabilities. The software, validated in the simulation environment, was successfully implemented on a physical spider robot, leading to effective operation.
Investigating the Relationship between Socioeconomic Status and Traffic Behaviors of Pedestrians in Marand
Authors: Harzand-Jadidi Sepideh , Rahimi Bonab Abolfazl , Haghighi Morteza , Saadati Mohammad , Mousavi Saeid
Published: November 2024

Background. Considering the high number of pedestrian accidents in Marand and their subsequent physical, psychological, social, and economic damages on the individual, family, and society, the current study was conducted to investigate the relationship between the socioeconomic status and traffic behavior of pedestrians. Methods. This descriptive-analytical study was conducted in Marand, one of the major cities in East Azerbaijan province of Iran in 2018-2019. The statistical population of the research included all the pedestrians of Marand. The statistical sample consisted of 515 pedestrians who were chosen from individuals who walked to the health centers. Data was collected using the pedestrian behavior questionnaire and the socioeconomic status questionnaire. Data analysis was conducted using SPSS software (version 23), which included descriptive statistics, independent t-test, and one-way analysis of variance (ANOVA). Results. The mean (standard deviation) of the total score of pedestrian traffic behavior in this study was 82.07 (7.80). The results of the independent t-test showed that the average score of aggressive behavior had a significant relationship with gender. As such, men had better traffic behaviors than women pedestrians. Based on the results of one-way ANOVA, the mean score of positive behaviors was significantly different in various age groups. Married pedestrians had fewer distracted behaviors than single pedestrians. Also, in all dimensions of traffic behavior, with the improvement of the socioeconomic status, the average score of traffic behavior increased. However, this increase was significant only in the subscales of adherence to traffic rules, positive behaviors, and distraction. Conclusion. According to the results of this study, pedestrians who had a lower socioeconomic status showed more unsafe behaviors while crossing the road. Also, unsafe behaviors were more common among female pedestrians and young age groups. Therefore, measures such as implementing educational and environmental interventions considering pedestrians’ demographic characteristics should be adopted to improve their traffic knowledge and behavior.
Strategies and Determinants of Knowledge Management and Sharing in Healthcare Organizations: A Narrative Review
Authors: Banifatemeh Leila , Hariri Nadjla , Farahbakhsh Mostafa
Published: November 2024

Background. Effective and efficient sharing of knowledge in health care can lead to the clarification of health data and dissemination of up-to-date health information among employees, decision-makers, and other stakeholders, thereby improving the probability of occurrence of desirable health outcomes. The current study aimed to identify the determinants of effective knowledge management and sharing in healthcare. Methods. This study was conducted to identify the facilitators and barriers of knowledge sharing in healthcare and also identify successful strategies in this field using the approach of review studies in 2023. A thorough literature review was conducted using relevant keywords in PubMed, Scopus, and SID databases and the Google Scholar search engine. Data extraction was done by two researchers using the data extraction table. The content analysis method was used to analyze the data. Results. Reviewing 21 studies revealed 176 determinants of knowledge management and sharing in healthcare organizations. Among the determining factors, 96 were facilitators, and 80 were barriers to knowledge sharing. After removing duplicate factors and merging similar cases, 54 facilitators and 55 barriers were obtained uniquely. The determining factors were classified into four categories: organizational factors, infrastructure factors, individual factors, and factors related to the information system. Also, 35 effective strategies for knowledge management in healthcare organizations were identified, the most important of which was related to the empowerment of managers in information technology (IT). Conclusion. The success of knowledge sharing in healthcare requires a strong IT infrastructure, supportive leadership, an organizational culture that governs knowledge development, commitment and cooperation among healthcare team members, and effective knowledge management.
Determination of the General Structure of the Enterprises Producing Eggs in Organic System in Ordu Province
Authors: Güçcük Kardelen , Alkan Sezai
Published: November 2024

In this study, it was aimed to determine general structure of the enterprises engaged in organic system egg production in Ordu province. For this purpose, the data obtained from face-to-face surveys with 47 breeders who produce eggs in organic system in Ordu province were used in this study. In the study, 68.1% of organic system poultry breeders are older than 41 years and 46.8% of all breeders are farmers by occupation. It was determined that 83% of the egg production enterprises were established in the under-hazelnut land and 55.3% of them used sandwich panels in poultry house construction. 85.1% of the enterprises provided ventilation in the poultry house with a fan, 68.1% used individual nest boxes, 93.6% used nipple type drinkers and 83% preferred paddy husk as litter material. The number of hens was 750 or more in 68.1% of the enterprises and Lohman Brown breed hens were used in 97.9% of the enterprises. 51.1% of the enterprises had 6 or more hens per square meter (m2) in the roaming area and 48.9% had 4 hens per square meter (m²) in the indoor area. At the same time egg yield was higher than 81% in 70.2% of the enterprises.
Development and Validation of a Digital Patient Guide to Clinical Photography for Teleconsultation in Dermatology
Authors: dos Santos Bruno Simao , Monteiro Grisolia Alexandra Maria
Published: November 2024

Introduction: Dermatological teleconsultation requires patients to provide high-quality images of cutaneous lesions for accurate diagnosis and treatment. Patients assume a pivotal role in teledermatology by effectively documenting skin lesions using standardized photographs. This study aimed to develop and validate a digital guide to assist patients in adequately documenting cutaneous lesions for dermatological teleconsultations.
Methods: Applied developmental research methods were employed in this study. Bibliographic research was conducted to determine the requirements for high-quality photographic documentation for dermatology. These investigative findings were adapted into a digital guide for patients using simple and accessible language. Subsequently, the digital guide underwent validation by dermatologists and laypeople through questionnaires using a five-point Likert scale and statistical analysis to assess reliability and concordance regarding its content and purpose.
Edukasi mengenai hipertensi pada lansia
Authors: Munir Rindasari , Budi Chindy Setia , Amalia Dela , Lestari Eva Puji , Rasyidin Fadia
Published: November 2024

Latar Belakang : Menurut World Health Organization (WHO) bahwa urutan kedua dari penyakit terbanyak yang dialami lansia setelah artritis yaitu penyakit kardiovaskuler dan hipertensi. Angka kejadian tersebut mencapai 15,2% dari 1203 sampel. Tujuan pengabdian masyarakat ini untuk meningkatkan pengetahuan lansia mengenai pencegahan dan penanganan hipertensi.Metode : Metode kegiatan dilakukan melalui penyuluhan dengan memberikan materi secara langsung menggunakan media penunjang yaitu poster dan leaflet yang diberikan kepada lansia, dan ada evaluasi melalui pre dan post-test dengan 10 pertanyaan.Hasil : Didapatkan hasil dari 30 responden dengan menggunakan metode sampling jenuh, dapat diketahui dari pre-test berpengetahuan baik sejumlah 22 orang (73,3%) dan setelah dilakukan penyuluhan ada peningkatan hasil post-test berpengetahuan baik sebanyak 26 orang (86,7%), hal tersebut menandakan adanya peningkatan sebesar 18,28% . Selain itu, didapatkan hasil p value<0,000 menunjukkan bahwa adanya pengaruh setelah dilakukan edukasi tentang hipertensi pada lansia.Kesimpulan : Hasil pengabdian masyarakat ini yaitu menunjukkan bahwa adanya peningkatan pengetahuan lansia mengenai hipertensi sehingga dapat mengurangi angka kejadian hipertensi pada lansia.
FinTechs’ role in SDGs achievement - a systematic review of scientific research
Authors: Klimontowicz Monika , Valeva Milena , Shenoy Harikeshav Ramchandra
Published: November 2024

The paper aims to review FinTechs' landscape in the context of their impact on countries' sustainable development reflected by SDG goals. The systematic literature review (SLR) applied the PRISMA methodology. It proved the worldwide systematically increasing scientific interest in surveying FinTechs and their contribution to SDGs' achievement. This trend has not yet been observed in Europe. Only a few papers directly refer to the relationship between FinTechs' and SDGs' achievement in European countries. Most of the research is qualitative. The topics range from conceptual framework to specific accomplishments of FinTech projects undertaken mainly by governments. They mostly refer to poverty alleviation through financial inclusion. The results of the systematic review of scientific research have shed light on the existing academic literature embracing both FinTech and SDGs issues, explored emerging trends in current research, and identified the main areas for further investigation.
COMPLICACIONES DE LAS FRACTURAS DIAFISARIAS DE TIBIA DE BAJO RIESGO Y EL DESCONTROL DE HBA1C EN UN HOSPITAL DE SEGUNDO NIVEL.
Authors: Montaño Salvador Cesiah Areli , Pulido Cañedo Luis Ignacio , Hernández Miranda Erik , Duran Martínez Rodrigo Fernando , Fernández Oscos Carlos Eduardo , Dimas Jiménez Elías
Published: November 2024

Las fracturas de tibia son la más comunes de hueso largo, producidas por mecanismos de alta energía en accidentes de tráfico, atropellamientos o actividades deportivas; en México la mayor proporción corresponde a la población masculina de 20 a 49 años; por características propias de su anatomía la hace susceptible a presentar complicaciones como infección del sitio quirúrgico, dehiscencia de herida, infección de material de osteosíntesis, osteomielitis, retraso en la consolidación y pseudoartrosis; la hemoglobina glucosilada (HbA1c) ha demostrado determinar el grado de afectación a la microvasculatura lo que genera alteraciones a nivel óseo tanto en la formación como en la resorción ósea. Estudio observacional, analítico, prospectivo, longitudinal en el Hospital General Regional No.1 de Orizaba Veracruz. La recolección de la muestra fue de diciembre 2022 a Julio 2024 incluyendo a 32 pacientes que cumplieron con los criterios de inclusión, se les tomó una prueba de HbA1c durante su estancia hospitalaria y se dio seguimiento identificando complicaciones relacionadas a fracturas diafisaria de tibia. Se aplicó estadística descriptiva e inferencial, los datos fueron integrados en el formato Excel para ser graficados. El resultado de los 32 pacientes que se les tomó HbA1c con fracturas diafisarias de tibia; fueron fracturas no expuestas 26 (81.25%) y fracturas expuestas grado I 6 pacientes (18.75%), 15 pacientes (46.8%) tuvieron complicaciones durante su seguimiento, la complicación más frecuente con o sin elevación de HbA1c fue dehiscencia de herida con 8 casos (53.3%), 7 pacientes (21.8%) presentaron alteraciones en HbA1c, 3 (12.5%) evolucionaron sin complicaciones, 3 (12.5%) de los pacientes con complicaciones presentaron HbA1c >7 y 1 paciente (3.1%) HbA1c >6.0-6.4% estos presentaron dehiscencia de herida quirúrgica. Se concluye que las fracturas diafisarias de tibia de bajo riesgo que se les dio seguimiento por 28 semanas, presentaron complicaciones como consecuencia del descontrol de HbA1c en 4 casos (12.5%).
Cytogenetic profile of leukemia cases in northern region of Malaysia - A single centre retrospective study
Authors: Shamsuddin Nur Haida Natasha , Azhari Abdul Rahman , Azizan Muhamad Amir , Mohd Nazman Hanis Nabilah , Abeden Zainul , Ahid Fadly , Mohd Yusoff Narazah , Isa Asmida
Published: November 2024

Leukemia is a heterogeneous disease in terms of cytogenetics, with four primary subtypes: acute lymphoid leukemia (ALL), acute myeloid leukemia (AML), chronic myeloid leukemia (CML), and chronic lymphoid leukemia (CLL). As cytogenetic heterogeneity increases, the disease prognosis worsens, highlighting the significance of cytogenetic profile in disease diagnosis. In this study, we conducted cytogenetic profiling of 105 leukemia cases referred to the Clinical Diagnostic Laboratory (CDL) at the Advanced Medical and Dental Institute (AMDI) in northern Malaysia between 2006 and 2021. Of these cases, 50.47% were ALL, 37.14% were AML, and 12.38% were CML. Most of the patients, approximately 57.15%, were cytogenetically normal, while the rest, 42.85%, were cytogenetically abnormal. Overall, the most common cytogenetically abnormal karyotypes detected in patients were chromosomal translocation (20.95%), followed by complex karyotypes (13.33%), and chromosomal addition (4.76%). The majority of ALL patients were under 14 years old, whereas most AML and CML patients were older than 14. The correlation between the ages and the karyotype abnormalities in ALL, AML, and CML showed a negative moderate correlation (r=-0.501, p=0.312). In conclusion, cytogenetic profiling provides valuable insights into the disease's underlying mechanism, which may help strategize the treatment of leukemia patients.
Random amplified polymorphic DNA-based polymerase chain reaction is an effective tool to examine the genotoxic effects of some food colors
Authors: Qasim Doaa Adil , Lafta Inam Jasim
Published: November 2024

A large number of natural or synthetic dyes have been removed from both national and international lists of permitted food colors because of their mutagenic or carcinogenic activity. Therefore, this study aimed to use the Random Amplified Polymorphic DNA-Based Polymerase Chain Reaction (RAPD-PCR) assay as a feasible method to evaluate the ability of some food colors as genotoxin-induced DNA damage and mutations. Lactiplantibacillus plantarum was used as a bioindicator to determine the genotoxic effects by RAPD-PCR using M13 primer after treatment with some synthetic dyes currently used as food color additives, including Sunset Yellow, Carmoisine, and Tartrazine. Besides qualitative analysis, the bioinformatic GelJ software was used for cluster analysis to compare DNA fingerprints before and after treatment. The bacteria treated with the food colors showed the presence of polymorphism represented by DNA changes in the RAPD patterns, including variation in bands intensity, disappearance of normal bands, and appearance of new bands compared with the non-treated control. The GelJ program confirmed the presence of genetic variations between the bacteria treated with different concentrations of the food dyes and the bacteria without treatment. The RAPD approach can be applied for the detection of DNA damage and mutations induced by genotoxic compounds. Furthermore, L. plantarum and M13 are suitable as in vitro screening tools for detecting of potential genotoxicity of numerous compounds.
Rancang Bagun Sistem Informasi Penentuan Rute Terbaik Menggunakan Algoritma Ant Colony Optimization dan Fuzzy-AHP
Authors: Hidayat Erzi , Perdana Sari Rika , Dewi Meilany , Hakim Arif Rahman
Published: November 2024

Penentuan rute objek wisata di Pekanbaru tidak hanya bergantung pada penentuan rute terpendek, tetapi juga pada rute terbaik, mengingat adanya berbagai kendala di lapangan, seperti jalan berlubang, kemacetan, dan kurangnya penunjuk arah menuju destinasi wisata. Pemilihan rute terbaik menjadi sangat penting untuk meningkatkan kenyamanan dan efisiensi perjalanan wisatawan, mengurangi waktu tempuh, serta menghindari potensi risiko yang dapat mengganggu pengalaman wisata. Oleh karena itu, penelitian ini bertujuan untuk menentukan rute terbaik menuju objek wisata menggunakan metode Ant Colony Optimization (ACO) dan melakukan perangkingan rute wisata dengan metode Analytic Hierarchy Process (AHP). Penelitian ini memadukan dua pendekatan, yakni ACO, yang meniru perilaku koloni semut dalam mencari rute optimal, dan AHP, yang menghasilkan skor numerik untuk menentukan peringkat alternatif berdasarkan seberapa baik masing-masing alternatif memenuhi kriteria pembuat keputusan. Hasil penelitian ini diharapkan membantu wisatawan untuk menemukan fasilitas yang tersedia di objek wisata serta menyediakan rute alternatif yang dapat dijadikan acuan dalam menentukan rute terbaik menuju lokasi wisata, sehingga dapat meningkatkan kepuasan wisatawan dan kualitas pengalaman perjalanan.
Contribuições epistemológicas a partir de Paulo Freire e Papa Francisco, em prol de uma educação crítica e criativa
Authors: Lima Jean Alves , Camargo Vanessa Cristina
Published: November 2024

A presente pesquisa tem como objetivo analisar as implicações práticas e teóricas resultantes dos ideais promovidos pelo pedagogo Paulo Freire e pelo Papa Francisco. Apesar de terem vivido em épocas distintas, é evidente que, de modo geral, a educação sempre esteve associada à capacidade de desenvolvimento crítico, criativo e participativo. Isso é alcançado somente por aqueles indivíduos que despertaram sua consciência através de um processo educacional emancipador e humanizador, conforme será demonstrado a seguir.
 
Palavras-chave: Paulo Freire. Papa Francisco. Liberdade. Humanização. Pacto Global.
Planilha de interpretação de análise química de solo
Authors: Nogaroli Jéssica Alves , Cordeiro Thauane Rossa
Published: November 2024

A análise química do solo desempenha um papel fundamental na agricultura, fornecendo informações precisas sobre os níveis de nutrientes e elementos potencialmente tóxicos no solo. Interpretar esses resultados requer conhecimento técnico e o uso de manuais especializados, possibilitando a elaboração de recomendações precisas de calagem, gessagem e adubação para as culturas agrícolas. As planilhas eletrônicas são uma ferramenta valiosa para simplificar a interpretação dessas análises químicas, permitindo recomendações mais precisas e eficientes, além de otimizar os processos produtivos. Neste contexto, desenvolvemos uma planilha eletrônica utilizando o Microsoft Excel, com base no Manual de Adubação e Calagem para o estado do Paraná, para auxiliar técnicos, produtores e estudantes na interpretação das análises químicas do solo. O uso desta ferramenta possibilita a otimização de processos que anteriormente poderiam ser demorados e complexos.
Avaliação na Prática do Ensino Remoto em Escolas Municipais de São Luís – MA
Authors: Silva Fernando Ricardo Lopes
Published: November 2024

Realizou-se uma investigação com docentes do 5º ano do Ensino Fundamental sobre a implementação doensino remoto em escolas municipais de São Luís-Maranhão durante a pandemia de Covid-19, buscandocompreender como se deu a avaliação de aprendizagem no ensino remoto. A pesquisa contextualizou asescolas e perfis dos docentes, identificando desafios, limites e possibilidades avaliativas. A abordagemmetodológica foi qualitativa, descritiva, envolvendo coleta de dados bibliográficos, documentais eentrevistas com seis professores de três escolas. Os resultados indicam dificuldades tecnológicas eestruturais, além de questões econômicas e sociais, dentro do contexto de crise sanitária provocada pelapandemia de Covid-19.
A Construção de um imaginário social sobre as escolas cívico-militares
Authors: Schaly Marcia Salete Wisniewski , Cabral Lauriane Lourenço Leal
Published: November 2024

O artigo tem por objetivo compreender os discursos e o imaginário social criado em torno das escolas cívico-militares, que tiveram aumento expressivo, no governo de Jair Messias Bolsonaro, após a publicação de Decreto, nº10.004/2019 que instituiu o Programa Nacional das Escolas Cívico-Militares (PECIM), em 2019. Mesmo com a revogação desse decreto, em 2023, no governo de Luiz Inácio Lula da Silva, a ampliação continua via projetos de leis Estaduais. Buscamos debater, amparados pelo método bibliográfico, sobre as pretensões das forças políticas neoconservadoras, vinculadas à lógica neoliberal, ao incentivarem projetos como esses que buscam implantar parte do sistema militar, nas escolas públicas brasileiras. Para tal, contextualizamos aspectos das escolas cívico-militares, articulando com alguns conceitos de Foucault sobre a disciplina como instrumento de controle e domesticação de comportamentos. Dialogando com este e outros autores, analisamos como se amplia o pensamento militarizado na sociedade, como promessa ilusória de um ideal de educação, sob a lógica neoliberal.
EVALUASI PROFITABILITY INDEX MODEL OPERASIONAL TUG-BARGE BERBASIS CHARTER ATAU KEPEMILIKAN KAPAL DALAM PENGANGKUTAN BIJI NIKEL
Authors: Sitorus Chris Jeremy Verian
Published: November 2024

Abstrak
Sekitar 23% cadangan nikel dunia berada di  indonesia. Hilirasi nikel menjadi komitmen pemerintah republik indonesia untuk meningkat pertumbuhan ekonomi dan meningkatkan nilai tambah. Salah satu elemen penting untuk pendistribusian nikel(raw material) ke smelter adalah kapal Tug-barge. Model pengoperasian kapal Tug-barge ini ada yang pengoperasiannya dengan menyewa kapal dan kepemilikan kapal (investasi kapal baru dan investasi kapal bekas).Tujuan penelitian ini untuk mengetahui kelayakan investasi kapal dengan analisis Profitability Index(PI). Profitability Index(PI) Investasi Tug-barge baru adalh 0,803, Profitability Index(PI) Tug-barge bekas adalah 0,918, Profitability Index(PI)  Tug-barge Sewa adalah 0,246. Hasil profitability index pada setiap model investasi kapal semuanya lebih kecil dari 1 ini menunjukkan bahwa investasi ini tidak layak untuk dipilih. Ada beberapa aspek yang membuat nilai dari PI ini lebih kecil dari 1 yaitu : Tingkat suku bunga, biaya repair and maintanance yang perlu di tinjau ulang dan harga uang tambang (freight charter) yang perlu dinaikkan sehingga ketiga model investasi ini diterima dan layak untuk dijalankan.
Abstract
Approximately 23% of the world's nickel reserves are located in Indonesia. The downstream processing of nickel is a commitment of the Government of the Republic of Indonesia to enhance economic growth and increase added value. One important element for distributing nickel (raw material) to smelters is the Tug-barge vessel. There are operational models for Tug-barge vessels that include ship charter and ship owner (investing in new building and investing in secondhand ). This study assesses the feasibility of investing in vessels through a Profitability Index (PI) analysis. The Profitability Index (PI) for new Tug-barges is 0.803, for secondhand Tug-barges is 0.918, and for chartered Tug-barges it is 0.246. The profitability index results for each investment in all models are below 1, indicating that these investments are not feasible. Several aspects contribute to the PI being below 1, including interest rates, repair and maintenance costs that need reevaluation, and the need to increase freight charter rates, so that all three investment models can be accepted and deemed viable.
PERUBAHAN MESIN PENGGERAK UTAMA KAPAL TUGBOAT SJP 01 TERHADAP KECEPATAN KAPAL
Authors: Edy Haryanto
Published: November 2024

The tugboat SJP 01 is a ship owned by PT Sinar Haluan Samudera which functions to push barges loaded with coal. This ship originally used a Nissan diesel 8DC10 300hp x 2 engine and a B4-85 type propeller. Over time, this engine often broke down so it was replaced with a new engine, a Mitsubishi S6A3 MPTK 600hp x 2 type and a B4-70 propeller. Apart from reducing the level of damage, engine replacement is expected to increase the speed from the initial speed. During the sea trial, this engine change only achieved a speed of 12 knots or an increase of 20% from the initial speed. As for the calculation results of various speed schemes A, B, C and D which are appropriate and effective, namely scheme A which gets 12 knots from each propeller giving a speed of 6 knots
Early physical rehabilitation in intensive care unit and its impact on Post-COVID syndrome manifestations
Authors: Kovalenko V.
Published: November 2024

Background. The COVID-19 pandemic has caused a global health crisis, notably through long COVID, which significantly affects the quality of life of patients’ post-discharge from hospital care. Long COVID is characterized by prolonged symptoms such as fatigue, cognitive impairments, depression, and anxiety. Early physical rehabilitation is a crucial component of patient recovery; however, the optimal frequency and intensity of rehabilitation interventions remain unclear.

Aim. To evaluate the effects of various physical rehabilitation regimens on functional status, cognitive functions, psychosocial state, and manifestations of post-COVID syndrome in patients who underwent severe COVID-19.

Materials and Methods. 102 patients with confirmed COVID-19 requiring treatment in an Intensive Care Unit (ICU) were included in the study. They were divided into groups based on the number of rehabilitation sessions per day: Group I received one session, while Group II received two. Physical rehabilitation included changing the body position in bed, verticalization and breathing exercises. We assessed average values for physical functional status, cognitive functions, and psychosocial condition at discharge, along with post-COVID symptom severity 5–7 days after discharge.

Results. Increasing the number of rehabilitation sessions led to better psychosocial outcomes and reduced manifestations of post-COVID syndrome. However, in the short-term, increasing session frequency did not yield statistically significant improvements in cognitive functions or physical status.

Conclusions. Early physical rehabilitation in ICU is vital for reducing manifestations of post-COVID syndrome in severe COVID-19 patients. Enhanced physical activity not only improves mental health but also helps alleviate physical symptoms. Future research should focus on the long-term effects of rehabilitation and a holistic approach to supporting patient recovery.

Keywords: mobilization of patients, early activation of patient, COVID-19, ICU.
Social, Political, and Administrative Critique in the Poetry of Zayn al-Din Ibn al-Wardi (749 AH)
Authors: Abdel Raheem Raed
Published: November 2024

The poet Zayn al-Din Umar ibn al-Wardi (749 AH) was one of the poets during the early Mamluk era who extensively engaged in social, political, and administrative critique within their poetry. They expressed their personal experiences in these matters, as they were witnesses to the political and social conditions of their society. Objectives: This research aims to investigate and clarify the contents contained within them, the poet's methods of expression, and their artistic techniques. Methodology: The research follows an inductive, descriptive, and analytical approach, as it has included the poems. Recommendations: The research recommends the following: Study of Ibn al-Wardi’s poetry included in this research, a comprehensive and integrated artistic study. & Expanding the study of aspects of social, political and administrative criticism in the era of Ibn al-Wardi in general, which is the first Mamluk era.

الشاعر زين الدين عمر بن الورديّ (ت749هـ) من الشعراء في العصر المملوكيّ الأوّل الذين أكثروا من النّقد الاجتماعيّ، والسّياسيّ، والإداريّ في أشعارهم، وعبّروا عن تجربتهم الخاصّة في ذلك، إذ كان شاهداً على أوضاع مجتمعه السّياسية والاجتماعّيّة، وتولّى منصباً في القضاء، فاطّلع على ما فيه، وفي غيره من المناصب من مفاسد، وقدّم في شعره مظاهر مختلفة لذلك. هدف البحث: يأتي هذا البحث ليقف على مظاهر النقد الاجتماعي والسياسي والإداري في شعر ابن الوردي، ومضامينها المختلفة، وبعض طرق التعبير عنها، وأساليبه الفنيّة فيها. منهج البحث: اتّبع البحث المنهج الاستقرائيّ الوصفيّ التحليليّ، فأتى في منهجه على جميع أشعار ابن الوردي الموجودة في ديوانه، الخاصة بموضوع الدراسة، باستثناء مراثي ابن الوردي في الشيخ ابن تيمية التي تناولت جانباً من النقد الاجتماعي والسياسي لوجود تفصيل لها في دراسات سابقة. نتائج البحث: خلص البحث إلى أن ابن الورديّ كان من أكثر شعراء عصره نقداً لأوضاعه السياسية، والاجتماعية، والإدارية. وحفل ديوانه بالأشعار المعبرة عن ذلك، وتنوّعت اتجاهات هذا النقد، ومضامينه، وأساليبه الفنية، فقد نقد السّاسة، وأرباب الدولة في عصره، وبيّن سوء سلوكهم وظلمهم. ونَقَدَ مجتمعه: طوائفه المختلفة، وأخلاق أبنائه، وبيّن صفاتهم السلبية. وكشف عن الفساد الإداري يومذاك، وركّز على الرّشوة، وانتشارها في سبيل الوصول إلى الوظيفة والمنصب. ووظف في ذلك كلّه التناص القرآني، والفنون البديعية، وبخاصة الجناس والتورية، واستحضر التراث، واتّكأ على الصورة الفنية، وأسلوب السخرية. التّوصيات: يوصي البحث بالآتي: دراسة شعر ابن الوردي الذي تضمّنه هذا البحث دراسة فنيّة شاملة متكاملة. والتوسّع في دراسة مظاهر النقد الاجتماعي والسياسي والإداري في عصر ابن الوردي بعامة، وهو العصر المملوكي الأول.
Hubungan Kelekatan Antara Anak dan Orangtua dengan Kedisiplinan Anak Usia 5-6 Tahun
Authors: Kurniawati Asih Budi , Al Farozi Khoirunnisa , Syafrudin Ulwan
Published: November 2024

Penelitian ini bertujuan untuk mengetahui hubungan kelekatan antara anak dan orang tua dengan kedisiplinan anak usia 5-6 tahun. Metode yang digunakan dalam penelitian ini menggunakan jenis penelitian korelasional bersifat ex post facto. Populasi dalam penelitian ini adalah seluruh anak kelompok B di TK Aisyiyah Bustanul Athfal (ABA) Pardasuka berjumlah 47 anak yang berusia 5-6 tahun. Teknik pengambilan sampel menggunakan total sampling. Teknik pengumpulan data yang digunakan pada penelitian ini yaitu angket dan observasi. Teknik analisis data yang digunakan yaitu analisis korelasi product moment. Hasil penelitian menunjukkan bahwa ada hubungan hubungan yang signifikan positif antara kelekatan orang tua dengan kedisiplinan anak usia 5-6 tahun. Hal ini terbukti dari  0,944 >    0,288 dengan signifikansi 0,05 Ha diterima yang berarti terdapat hubungan yang signifikan positif antara kelekatan orang tua dengan kedisiplinan anak usia 5-6 tahun di TK Aisyiyah Bustanul Athfal (ABA) Pardasuka.
 
Kata Kunci: kelekatan, kedisiplinan, anak Usia Dini
PERAN GURU DAN ORANG TUA DALAM PERKEMBANGAN BAHASA ANAK USIA DINI : Literatur Review
Authors: Rachman Angraeny Unedia , Amilia Fitri , Endang Jatmikowati Tri
Published: November 2024

Perkembangan bahasa sangat penting bagi anak usia dini karena anak dapat berkomunikasi dengan baik dan menggunakan bahasa yang dimanfaatkan untuk berpikir dan belajar dengan baik. Penelitian ini bertujuan menganalisis peran guru dan orang tua dalam perkembangan bahasa anak usia dini. Metode penelitian yang digunakan adalah literature review, melalui enam tahapan yaitu: 1) Menentukan topik yang dipilih; 2) Menentukan rumusan masalah; 3) Melakukan pencarian literatur;  4) Memilih artikel yang sesuai; 5) Menganalisis artikel yang terpilih; 6) Menulis dan merangkum hasil review. Hasil klasifikasi artikel diperoleh sebanyak 87 artikel dari tahun 2017 sampai tahun 2022, selanjutnya dilakukan screening dan terdapat 25 artikel yang sesuai dengan kriteria. Hasil penelitian ini adalah peran guru dan orang tua sangat berpengaruh terhadap perkembangan bahasa anak usia dini dalam membentuk dan mempersiapkan anak sebagai generasi masa depan yang berkualitas. Kemajuan digital menjadi salah satu sarana untuk dapat meningkatkan kreativitas dan inovasi guru dalam merancang kegiatan bermain untuk anak yang menarik dan menyenangkan terhadap peningkatkan perkembangan bahasa anak. Orang tua juga harus lebih peduli terhadap anak dalam pengasuhan dirumah, dengan tidak membiarkan anak lebih dekat dengan gadget yang berdampak pada perkembangan bahasanya dikarenakan tidak tercipta proses komunikasi dan interaksi
Prevalencia de VIH, hepatitis B y C en un hospital público de México
Authors: Diego-Ponce Guillermo , Baldovinos-Leyva Irma
Published: November 2024

La donación de sangre en hospitales públicos, pueden presentar algunos riesgos sobre infecciones como Hepatitis B (VHB), C (VHC) y virus de la inmunodeficiencia humana (VIH), que son un problema de salud pública, en consecuencia, un dato crítico en la medicina transfusional. Se utilizo una metodología descriptiva en retrospectiva, con la finalidad de que toda persona que acude al Hospital del ISSSTE para su evaluación como donador, se descarte la posibilidad de prevalencia de VHB, VHC y VIH en ellos. Obteniendo resultados de 6,841 casos seleccionados, el 19.14% correspondió a mujeres y el 80.86% a hombres, en el que se encontró una prevalencia de 0.29 para VIH, 0.11 para VHB y 0.29 para VHC, concluyendo que probablemente se deba a que la población que se dirige a donar sangre es generalmente sana y que en la mayoría de los casos son familiares de pacientes que están próximos a presentar una cirugía diagnosticada en el mismo hospital.
Game Theory for Insider Threat Detection and Mitigation: A Review
Authors: Ogunbodede Olajide O. , Adewale Olumide S , Alese Boniface K. , Akinyokun Oluyomi K
Published: November 2024

: Malicious insiders pose serious threat
to organizations, institutions, and governments’
critical infrastructure because of their access to
confidential data, systems, and resources. This
threat, often referred to as the insider threat, is most
of the time regarded as a human factor problemoften driven by motivation, opportunity, and
capability. As long as the insider problem is treated
as a technology problem, the natural recourse for
detection and mitigation is to the use of technical
and procedural controls. Such an approach is not
advisable when confronting strategic human
adversaries, since it may fail to account for the
dynamic nature of the conflict between the
contending parties who happen to be self-interested
and intelligent agents. Game theory, with its rich
analytical and modelling techniques, offers
mathematical tools and procedures that capture the
dynamic interplay between the security apparatus of
an organization and the malicious insider. This
paper presents a literature review of previous works
on insider threat detection and mitigation using
game theoretic principles
A Study of Antidepressant and Anxiety Interviews Based on HDP Topic Modelling of Sichuan University MD and Deputy Chief Physician of Shandong Provincial Hospital (Finding)
Authors: Zhang Dr.Xiaoyin , Meng Dr.Wei , Du Dr.Licheng
Published: November 2024

While diving deep into 22 core themes on
depression and anxiety disorders, the HDP topic
modelling approach is extended in this chapter by
the Random Forest algorithm. We have focused on
emotional expression, family therapy, school
environment, and self-regulation-the real influential
factors to mental health. It first involves data
collection and preprocessing, where, based on a
number of metrics-such as model perplexity and
thematic coherence-we establish the stability and
explanatory power of the model. These metrics have
helped us to find out how many themes are
sufficient and thus provided sufficient ground for
further analysis. The second step included the
implementation of the Random Forest algorithm,
which is an integrated learning approach and hence
summed up the results of a number of modelling
sessions. In this way, we extracted descriptions and
keywords for every theme; hence, the relation
among themes of emotional expression and mental
health could be closely cross-linked to depression
and anxiety. A series of intuitive presentation
analyses were done in order to visualize the findings
intuitively: keyword frequency statistics charts,
keyword word cloud charts, and heat maps, which
vividly present the core findings of this study. From
these figures, we could visually get the correlation
of different keywords and their importance in the
whole study. In conclusion, emotional expression is
highlighted as the core mechanism in keeping
mental health. While family and school is an
important part of one's social support system, being
a non-negligible influence on regulating emotional
expression and mental health. Additionally, it is a
decent method of self-regulating one's life stresses
and reducing symptoms of anxiety and depression.
The study has not only enhanced our understanding
of the underlying complex psychological
mechanism of depression and anxiety but also
scientifically grounded the basis for some mental
health interventions in the future. These findings
help us in better supporting the sufferers of
psychological problems and finding ways of
restoring their mental health.
Capacity Building Programmes and Task Performance by Teachers in Public Secondary Schools in Delta State
Authors: Egenege Egenege , Unoma Faith , Dr. Anho Dr. Anho , E. J. Egwunyenga J.E. &Prof. (Mrs.).
Published: November 2024

The study examined the impact of capacity
building programmes and task performance by
teachers in public secondary schools in Delta State
with correctional study of ex-post-facto research
design. The study's population consisted of 452
principals from 452 public secondary schools in
Delta State This research study incorporates a
sample of 225 school principals. The sampling
method employed was stratified, with 80 principals
chosen from Delta North, 90 from Delta Central,
and 55 from Delta South. The "teachers' task
delivery questionnaire" (TTDQ) and the "capacity
building questionnaire" (CBQ) were the two
research instruments used in this study.
Respondents were free to agree or disagree with
any statement on the questionnaire on a continuum
in varying degrees ranging from; strongly agree (4
points) to strongly disagree (1 point). Through
experts screening, the face and content validity of
the instruments was ascertained. Cronbach Alpha
was used to assess the dependability of the study
instrument with ten principals and twenty teachers
from Delta State who were not part of the research
locations. This resulted in an alpha reliability value
of 0.87 for the Capacity Building Questionnaire
and 0.86 for the Teachers' Task Delivery
Questionnaire. The researcher individually visited
the 225 sampled secondary schools to administer
the instrument alongside instructed, five study
assistants. At the end of the administration, the
questionnaires were collected and 223 properly
filled, yielding a 99.69 percent return rate. The
acquired data was analyzed using mean, standard
deviation for research 1 and 2 while Pearson
Product Moment Correlation Statistics (PPMCS) of
determination for research questions 3, 4, and 5.
The 3 hypotheses were tested using Pearson
Product Moment Correlation Statistics (PPMCS)
and was analysed using the Statistical Package for
Social Sciences (SPSS) version 23 computer tool at
the 0.5 level of significance. The major findings
are; public secondary schools provide three types
of capacity building programs: orientation inservice, conference/seminar, and mentorship.
Teachers' task delivery elements include good
subject matter knowledge, quality lesson
preparation and delivery, punctuality to
school/class, effective use of questioning methods,
quality class management, quality record keeping
and retrieval, and good evaluation among others
and there was a substantial beneficial association
between capacity building programmes (orientation
in-service, conference/seminar, and mentorship)
and task delivery by teachers in Delta State's public
secondary schools. Based on the findings and
conclusions, the recommendation is educational
authorities should develop capacity-building programs
that are tailored to the specific requirements of
individual teachers, schools, and communities,
ensuring that they are relevant, engaging, and address
the unique issues that teachers confront among others
Real Time Smart Garbage Monitoring and Management System: A Review
Authors: Shelke Ms. Pratiksha , Patil Ms. Sakshi , Bankar Mr. Soham , Dr.B.H.Patil Dr.B.H.Patil
Published: November 2024

In urban areas, effective waste management is
crucial for maintaining cleanliness and public
health. Traditional methods of garbage collection
often result in inefficiencies, such as delayed
collection or overflows, contributing to
environmental pollution. This paper presents a realtime smart garbage monitoring and management
system using Raspberry Pi, aimed at optimizing
waste collection processes. The system utilizes
sensors to monitor the fill levels of waste bins and
communicates the data to a centralized platform
using wireless communication. The Raspberry Pi
acts as the control unit, processing sensor data and
sending alerts to waste management authorities
when bins reach a predefined threshold. This system
enables real-time tracking of bin status, leading to
timely waste collection, reduced operational costs,
and a more sustainable urban environment. The
proposed solution enhances the automation of waste
management, with a focus on scalability, costeffectiveness, and ease of deployment in smart
cities. Experimental results demonstrate the system's
reliability in real-world conditions, highlighting its
potential to revolutionize waste management
practices.
Assessing Natural Disaster and Sustainable Infrastructure development: A Case Study of Flood Resilience and Mitigation Strategies in Maiduguri Nigeria.
Authors: Micah Ifeanyi Uba
Published: November 2024

Natural disasters, such as floods, are
increasing in frequency and intensity due to climate
change, especially in regions like Maiduguri,
Nigeria. Maiduguri, located along the Ngadda
River, frequently experiences seasonal flooding
that severely impacts its infrastructure, economy,
and population. The city's low-lying geography and
inadequate drainage systems have left it
particularly vulnerable. Recent floods have caused
widespread damage, including the collapse of
bridges, isolating communities and hampering
rescue efforts. The economic losses are estimated
to exceed $100 million, emphasizing the urgent
need for improved flood resilience. This paper
explores the current flood risks and infrastructure
challenges in Maiduguri and proposes sustainable
flood resilience strategies, such as upgrading
drainage systems, enhancing early warning
systems, and implementing green infrastructure.
While progress has been made, particularly through
pilot green infrastructure projects, challenges
remain in funding, policy enforcement, and
coordination among government agencies.
Recommendations include a holistic approach
combining structural and non-structural measures,
public education, stricter land-use regulations, and
international partnerships to build long-term flood
resilience. These strategies offer valuable insights
into addressing the rising flood risks and ensuring
sustainable development in Maiduguri