bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimization of the lubrication conditions for minimization of the operating temperature of the high-speed ball bearings
Authors: Kolarevic Nenad , Stankovic Milos , Dimic Aleksandar , Mihajlovic Dimitrije , Nauparac Dragan
Published: February 2025

Bearing lubrication for high speed application (above 20,000 rpm) has
significant influence on the bearing heat generation and consenquently
bearing operating temperature. For application in aerospace industry the
selection of lubricant type, its amount and lubrication method should be
carefuly conducted in order to achieve desired life and minimal weight. In
this paper, experimental research was carried out in order to check whether
and to what extent an open loop system can achieve similar bearing thermal
behaviour as in a closed loop system. Tests were conducted on high-speed
bearings of a turbo shaft engine. The experimental results showed that the
open loop system, with oil mist lubrication, can achieve similar bearing
operating temperature as the closed loop system, which operates with oil
circulation, with the advantage of having a significantly lower mass. Also,
a variation of lubrication conditions for open loop method, air pressure and
oil amount, was carried out in order to minimize the operating temperature
of high speed angular ball bearings. It has been shown that there is a
combination of these two parameters that gives the least heating of
high-speed bearings.
Numerical study of flow around two teardrop cylinders in tandem arrangement at low Reynolds number
Authors: Chen Yonghong , Lv Bangjun , Su Yongsheng , Song Qi , Lian Haibo
Published: February 2025

In this paper, the numerical method is used to investigate the flow around
two tandem teardrop cylinders for four different arrangements at low
Reynolds numbers. The influence of Reynolds number and spacing ratio on the
drag, lift coefficient and Strouhal number are calculated and analyzed. The
Reynolds number ranges from 50 to 200, while the spacing ratio ranges from 0
to 15. The results indicate that the Reynolds number has a more significant
effect than the spacing ratio on the two tandem teardrop cylinders.
Moreover, the influence of Reynolds number and spacing ratio on drag and
lift coefficients can be divided into three regions. The drag and lift
coefficients exhibit regular variations in the front and rear regions, and
irregularly in the intermediate region, which are 140~ 170,125 ~ 140,80 ~
125 and 125 ~ 140 at Reynolds number and concentrated in 2.4-2.8 ?S <6 in spacing ratio
for the four arrangements. A sudden increase present in both cylinders in
all arrangements, except for the drag coefficient of the upstream cylinder
which varies with Reynolds number. For a fixed spacing ratio or Reynolds
numbers, constant vortex shedding is observed in cylinders with the various
of Re or S. Arrangement A shows the latest onset of vortex shedding,
regardless variations in the Reynolds number or the the spacing
ratio. Additionally, intermittent vortex shedding is noted in Arrangements A
and C before transitioning to a constant state. Overall, compared to the
circular cylinders in tandem arrangement, the teardrop cylinders demonstrate
superior flow characteristics. The results will provide a certain theoretical
foundation for applications in engineering practice.
Experimental study on ignition characteristic and performance of a two-stroke engine fueled with aviation kerosene
Authors: Han Zhiqiang , Li Xuantao , Tian Wei , Fang Jia , Wu Xueshun , Zuo Zinong , Wu Yi , Yan Yan
Published: February 2025

Two-stroke spark ignition engines are widely used in Unmanned Aerial
Vehicles. Aviation kerosene offers advantages over aviation gasoline due to
its higher flash point and lower volatility, making it likely to be adopted
more widely in the future. However, the poor evaporation and atomization
characteristics of aviation kerosene result in suboptimal ignition
performance, especially in the engine start-up phase. To explore the fitting
mixture concentration and temperature conditions for achieving better
ignition performance of aviation kerosene, A series of experimental studies
are conducted on a two-stroke engine. The intrinsic factors affecting engine
performance are analyzed. The experimental results indicate that optimal
ignition characteristics, maximum power output, and a reduced misfire rate
can be achieved at mixture concentration of 0.6 and mixture temperature of
80?C. Furthermore, the misfire rate is most sensitive to the combustion
duration, while the cyclic variations show significant sensitivity to
ignition delay. The results provide guidance for optimizing ignition
performance during the start-up phase of two-stroke engines fueled with
aviation kerosene.
Study on finite element method coupled with genetic algorithm in optimization for temperature uniformity of hot plate welding
Authors: Wang Cheng , Chang Kaixiang , Liu Xiang , Shi Weixin , Wang Senhui
Published: February 2025

Aiming to improve the temperature uniformity used for hot plate welding, two
optimal design methods by coupling finite element method (FEM) with genetic
algorithm (GA) are put forward and implemented into FEM software through the
secondary development. Taking the positions of the heating holes and the
heat fluxes applying to the heating holes as the optimization variables, the
minimum temperature difference on the faying surface as the optimization
objective, taking advantage of the numerical calculation of steady-state
heat transfer, the parametric modeling of hot plate is carried out in
accordance with the developed FEM-GA coupling optimization framework. The
first optimal design method adopts a two-stage sequent optimization that the
optimal positions of heating holes and the heat fluxes applying to the
heating holes are sequentially obtained by using the two-step FEM-GA
coupling calculations. The second optimal design method optimizes these
variables simultaneously. The simultaneous optimal design method is further
utilized to optimize the hot plate model associated with the orthogonal
heating holes. In the case of the experience-based initialization of the
optimization parameters, the two-stage sequent optimal design method is
capable to achieve the better temperature uniformity on the faying surfaces
with the lower computation costs, as compared with the results of the
simultaneous optimal design method. The FEM-GA coupling optimal design
method for improving the temperature uniformity used for hot plate welding
would be of great significance for the industrial application of hot plate
welding.
Collaborative capacity building for strengthening rehabilitation services in Sabah, Malaysia: a partnership between university hospital and state health department
Authors: Ahmedy Fatimah , Yin Khin Nyein , Sybil Shah Syahiskandar , Darsin Singh Sukhbheer Kaur , Amat Nurul Afiqah Fattin , Francis Frisca Aziah , Ibrahim Yusof , Lasimbang Helen , Sarbatly Rosalam , Mansur Kasim , Goh Candace , Kabir Md. Feroz
Published: February 2025

Objective: This paper aims to outline the foundational framework for strengthening rehabilitation services in Sabah, Malaysia, through a collaborative capacity-building initiative between Hospital Universiti Malaysia Sabah (HUMS) and the Sabah State Health Department (JKNS). By focusing on academic, research, and service capacity-building, this partnership seeks to address the rehabilitation needs of the local population, particularly for individuals with functional limitations.
Methods: The collaboration integrates HUMS’s academic and clinical strengths with JKNS’s existing rehabilitation services. Key components include developing postgraduate training for rehabilitation medicine, expanding community-based rehabilitation outreach services, and establishing a referral network between hospitals and community healthcare providers.
Results: The partnership has resulted in the implementation of a comprehensive framework that enhances academic capacity, fosters research collaboration, and improves rehabilitation service delivery across Sabah. This approach is aligned with the WHO’s Rehabilitation 2030 initiative, advocating for stronger integration of rehabilitation into healthcare systems.
Conclusion: The collaborative efforts between HUMS and JKNS demonstrate the critical role of partnerships between academic institutions and public health departments in strengthening rehabilitation services. This model offers a replicable strategy for influencing policy development and ensuring resource allocation to meet the growing rehabilitation needs in underserved regions.
Effects of kinesio taping in patients undergoing knee or hip arthroplasty: a systematic review and meta-analysis of randomized controlled trials
Authors: Mei Ting , Shuai Yuli , Wu Dandong , Yu Heping
Published: February 2025

Objective: To assess the effects of kinesio taping on pain, oedema, range of motion, and joint function following knee or hip arthroplasty.
Methods: Eight databases were searched up to 9 January 2024. Patients undergoing rehabilitation after knee or hip arthroplasty were included. The intervention group received kinesio taping with postoperative rehabilitation, while the control group received postoperative rehabilitation alone. Outcomes for knee arthroplasty patients, included pain, oedema, range of motion, and the Hospital for Special Surgery knee score. For hip arthroplasty, the outcome focused on pain.
Results: Eleven randomized controlled trials involving 774 participants met the inclusion criteria. In knee arthroplasty patients, kinesio taping significantly reduced pain (standardized mean difference [SMD] = –0.53, 95% CI –0.91 to –0.14, p = 0.007), and relieved thigh (SMD = –0.38, 95% CI –0.65 to –0.12, p = 0.005) and ankle circumferences (SMD = –0.53, 95% CI –0.95 to –0.12, p = 0.01). It improved the total range of motion (SMD = 1.26, 95% CI 0.93 to 1.60, p < 0.00001) and Hospital for Special Surgery knee score (SMD = 2.17, 95% CI 1.70 to 2.65, p < 0.00001). No significant pain intensity reduction was observed in hip arthroplasty patients (p = 0.25).
Conclusion: Kinesio taping combined with postoperative rehabilitation effectively reduces oedema and pain, and improves joint function in knee arthroplasty patients, but does not alleviate pain in patients following hip arthroplasty.
Transurethral microwave thermotherapy with the CoreTherm®Concept in men with prostates larger than 100 grams – a consecutive case series
Authors: Winck-Flyvholm Lilli , Fode Mikkel , Marsh Anne , Krøyer Nielsen Kurt
Published: February 2025

Objective: Transurethral microwave thermotherapy (TUMT) is well described for lower urinary tract symptoms in men with prostates between 30 and 100 grams. We aimed to describe the results in men with prostates larger than 100 grams.
Material and methods: We retrospectively recorded age, prostate size, occurrence of urinary retention, and Danish Prostate Symptom Score (DAN-PSS) prior to treatment in men with prostates exceeding 100 grams. Following treatment, we assessed satisfaction, DAN-PSS, and the results of uroflowmetry and postvoid residual urine.
Results: We included 50 consecutive patients with prostates over 100 g. The median age was 78 years, and the median prostate size was 126 g (range 101–230). Forty-four men were treated due to urinary retention and 6 due to lower urinary tract symptoms. Treatments were performed under local anesthesia. The median duration was 15 minutes (range 8–32 minutes) and the median destruction was 25% of the prostatic volume (range 11–26%). Eight patients had destruction of <20%. No side effects were noted.
Forty-nine patients completed 6-month follow-up. The 41/49 (84%) men who had tissue destruction of ≥20% reported to be satisfied. The median DAN-PSS score was 3 (range 0–18), the median Qmax was 12 mL/s (range 5.1–23.1 mL/s) and the median postvoid residual volume was 89 mL (range 0–331 mL). Symptoms were unchanged in the 8/49 (16%) men who had <20% tissue destruction.
Conclusions: TUMT represents a useful alternative to surgery in men with infravesical obstruction and a prostate of more than 100 grams.
Enfermedades metabólicas prevalentes en el adulto mayor. Revisión Bibliográfica
Authors:   Universidad Técnica de Machala Ecuador, Valverde Guallo Karelia Vanessa
Published: February 2025

El artículo revisa la prevalencia y el impacto de las enfermedades metabólicas en adultos mayores, enfocándose en la diabetes mellitus (DM), el síndrome metabólico (SM) y la osteoporosis (OP). Estas condiciones, relacionadas con factores como la obesidad, el envejecimiento y el sedentarismo, representan un desafío creciente debido a su alta morbilidad y costos asociados. La DM afecta al 9.3% de mayores de 60 años en Ecuador, destacándose como un problema global con graves complicaciones cardiovasculares, renales y neurológicas. El SM, por su parte, combina factores de riesgo interrelacionados, como hipertensión y obesidad abdominal, aumentando el riesgo de enfermedades cardiovasculares severas. La OP, una enfermedad silenciosa, incrementa la fragilidad ósea y el riesgo de fracturas, siendo más prevalente en mujeres posmenopáusicas. El estudio empleó una metodología cualitativa y descriptiva, con análisis de diversas fuentes, identificando una alta prevalencia de estas patologías en la región. Se destaca la necesidad de estrategias preventivas y terapéuticas personalizadas, integrando factores médicos, sociales y emocionales para mejorar la calidad de vida en esta población vulnerable. El artículo concluye que abordar estas enfermedades requiere un enfoque integral, priorizando la prevención y el manejo temprano, así como la atención a las implicaciones psicológicas y sociales. Esto subraya la importancia de políticas públicas y recursos adaptados a los desafíos del envejecimiento poblacional.
Estrés y ansiedad en adultos mayores institucionalizados: factores asociados, impacto en la salud y estrategias de intervención en asilos
Authors:   Universidad Técnica de Machala Ecuador, Herrera Sanmartín Nicolle
Published: February 2025

El estrés y la ansiedad son problemas críticos en adultos mayores institucionalizados, derivados de factores emocionales, sociales y físicos. El traslado a asilos conlleva pérdida de autonomía, desconexión afectiva y adaptación a sistemas rígidos, lo que incrementa el riesgo de trastornos psicológicos. Estos factores activan el eje hipotalámico-hipofisario-adrenal, liberando cortisol de manera sostenida, lo que afecta el equilibrio emocional y físico. Además, la percepción de abandono, el duelo no resuelto y el aislamiento agravan el panorama, disminuyendo neurotransmisores como serotonina y dopamina. Estrategias integrales, incluyendo intervenciones psicológicas y actividades grupales, son esenciales para mejorar la calidad de vida y mitigar estos efectos negativos.
Efecto de la neuroplasticidad en la rehabilitación post-ECV. Mecanismos, intervenciones y resultados clínicos
Authors:   Universidad Técnica de Machala Ecuador, Herrera Sanmartín Nicolle
Published: February 2025

El artículo examina el impacto de la neuroplasticidad en la rehabilitación post-ECV, explorando los mecanismos subyacentes, las intervenciones terapéuticas y los resultados clínicos obtenidos. La neuroplasticidad, capacidad del cerebro para reorganizar sus conexiones neuronales, juega un papel crucial en la recuperación funcional tras un accidente cerebrovascular. Se abordan diversas estrategias terapéuticas que promueven la neuroplasticidad, como la terapia de restricción inducida, la rehabilitación cognitiva y la estimulación cerebral no invasiva, evidenciando sus efectos en la mejora de las funciones motoras, cognitivas y emocionales. Además, se analiza el impacto de las tecnologías emergentes, como la realidad virtual, la estimulación magnética transcraneal y las interfaces cerebro-computadora, en la optimización de la rehabilitación. Sin embargo, la efectividad de estas intervenciones varía según factores individuales, lo que subraya la importancia de personalizar los tratamientos. El artículo concluye que la integración de tecnologías avanzadas, combinada con enfoques tradicionales y un tratamiento individualizado, es esencial para mejorar los resultados clínicos en la rehabilitación post-ECV.
Optimasi Sampling Bersama Roulette-Wheel Sebagai Improve Metode Sample Random Sampling
Authors: Marta dinata Riadi
Published: February 2025

The Sample Random Sampling (SRS) method, which is commonly used in sampling, can improve theaccuracy of the results by carrying out leveling techniques based on probability values. Population data wasobtained from the 2019 Indonesian President & Vice Presidential Election Vote Count Results website forLampung Province. The research began with techniques for determining the number of respondents (voters), toa list of polling places (TPS) in which areas should be occupied by quick-count volunteers. The addition of"Roullet-Whell" computing to SRS (ImproveSRS) produces better accuracy values than regular SRS. Researchalso shows that the deviation value of improveSRS is 1.8% from actual data, which is more effective and efficientcompared to SRS without improvement.
Biogenez i funkcionirovanie mikroRNK: 30 let posle ih otkrytiya
Authors: Писклова М. В. , Баулина Н. М. , Матвеева Н. А. , Фаворова О. О.
Published: February 2025

Opisana rol' mikroRNK (malyh nekodiruyushchih RNK) v regulyacii ekspressii genov. Svyazyvayas' s mRNK-mishenyami, mikroRNK kontroliruyut ekspressiyu kodiruyushchih eti mRNK genov na posttranskripcionnom urovne, uchastvuya v fiziologicheskih i patologicheskih processah ot embriogeneza do opuholevyh zabolevanij. S momenta otkrytiya etih molekul v 1993 g. razlichnye nauchnye gruppy issleduyut funkcii i mekhanizmy dejstviya mikroRNK. V stat'e rassmotreny puti biogeneza mikroRNK, sposoby vzaimodejstviya mikroRNK s mRNK-mishenyami i mekhanizmy podavleniya translyacii i degradacii mRNK. Rezul'taty mnogochislennyh issledovanij pokazali, chto mikroRNK mozhno ispol'zovat' v medicine v kachestve biomarkerov v diagnosticheskih i prognosticheskih celyah. Razrabotki v oblasti terapii s ispol'zovaniem mikroRNK otkryvayut perspektivy dlya lecheniya zabolevanij, pri kotoryh narushenie regulyacii genov igraet klyuchevuyu rol'.
Trajectory of Terminal Lucidity Phenomenon: Systematic Review
Authors: Novitasari Yuni , Susanto Eko , Mudaim Mudaim
Published: February 2025

Terminal lucidity is a phenomenon characterized by the sudden reappearance of cognitive clarity in patients with severe cognitive impairment, such as dementia, near death. This systematic study aims to examine various aspects of the terminal lucidity phenomenon, from biological mechanisms, psychosocial impacts, to spiritual dimensions, especially through the lens of an Islamic perspective. The study was conducted using the Systematic Literature Review (SLR) approach according to the PRISMA guidelines, with an analysis of 82 open access articles from 2015 to 2024. The selection process included screening of titles, abstracts, and full texts, resulting in 40 articles that met the inclusion and exclusion criteria. The results of the analysis revealed that although biological mechanisms such as changes in neurotransmitters and brain electrical activity require further study, the terminal lucidity phenomenon has important implications for palliative care. This moment of clarity provides an opportunity for patients to communicate meaningfully and for families to say goodbye with hope. In addition to the medical aspect, terminal lucidity also reflects a significant spiritual dimension, where Islamic values interpret this phenomenon as divine intervention and a moment of final forgiveness. The findings of this study emphasize the need for a holistic approach that integrates emotional support, physical care, and spiritual guidance in end-of-life counseling. Further research is recommended to investigate the pharmacological mechanisms and the use of brain imaging technology to deepen the understanding of this phenomenon, so that the quality of patient care at the end of life can continue to be improved. This study makes an important contribution to expanding the multidisciplinary understanding of terminal lucidity and encourages the development of holistic palliative care guidelines, so that medical, psychosocial, and spiritual interventions can be optimized to accompany patients and their families to achieve a better quality of life.
German Inflation-Linked Bonds: Overpriced, Yet Undervalued
Authors:   Federal Reserve Bank of San Francisco, Christensen Jens H. E , Mouabbi Sarah ,   Banque de France, Paulson Caroline ,   Federal Reserve Bank of San Francisco
Published: February 2025

We document that German inflation-linked government bond yields contain a convenience or safety premium averaging 0.33 percent. Yet, the German Federal Finance Agency decided to cease all future issuance of these bonds in November 2023. We examine the market response to this announcement and find that neither the safety premia nor the trading conditions of these bonds have been negatively impacted. Hence, this bond market remains a rich source of information on real rates in the euro area in addition to offering investors a safe inflation-protected asset.
Exploring The Efficacy of Digital Art Therapy in Enhancing Social Communication for Autistic Individuals
Authors:   National Autism Society of Malaysia, College of Creative Arts, Universiti Teknologi Mara, Selangor, Malaysia, Ahmad Rizal Sarah , Zainol Amer Shakir ,   College of Creative Arts, Universiti Teknologi Mara, Selangor, Malaysia
Published: February 2025

This paper focuses on the developing area of digital art therapy for autistic persons in Malaysia, investigating both the bright prospects and the obstacles it encounters. Traditional art therapy has frequently been greeted with suspicion, partly owing to poor scientific data, which has prevented its wider acceptance in medical procedures. However, digital platforms are developing as a potent alternative, offering adaptable and interactive places intended to fulfill the special requirements of autistic individuals. This study attempts to examine how digital art therapy might promote communication and emotional expression in these individuals. By integrating both quantitative data and human experiences from interviews, it tries to convey the whole impact of this therapeutic technique. Early results imply that digital art therapy might offer a more individualized and effective alternative to help autistic persons express themselves. Still, the absence of considerable research remains a key impediment to completely incorporating it into the healthcare system. Closing the gap between traditional medicine and digital treatments is vital for delivering a greater choice of treatment options customized to the requirements of autistic individuals. Ultimately, this article argues for more extensive study to prove the advantages of digital art therapy and to guarantee it becomes a significant element of autism treatment in Malaysia, benefiting the lives of those who need it most.
Exploring Female Character Costumes and Representation in Cartoon Network's Adventure Time
Authors:   College of Creative Arts, Universiti Teknologi MARA, Selangor, Malaysia, Fadzili Lini Lis Aisya , Muharam Norhasheila ,   College of Creative Arts, Universiti Teknologi MARA, Selangor, Malaysia
Published: February 2025

Costumes in animated TV series play a crucial role in visual storytelling, reflecting the characters' personalities and the narrative's setting. scholar emphasizes that costume design is a delicate balance between narrative and visual elements, using color, texture, and silhouette to enhance authenticity. In Adventure Time, the varied costumes of Princess Bubblegum and Marceline showcase their evolving personalities while challenging traditional female character stereotypes. This research explores how these designs communicate distinct identities and narratives, with the goal of advancing costume design practices and character recognition in animation. Adventure Time stands out because its secondary female leads possess an extensive wardrobe of costume designs, a rarity in animated television. This study employs a qualitative approach to investigate the diverse costume designs in Adventure Time as visual communicators. By focusing on Princess Bubblegum and Marceline, it analyzes their different outfits to uncover the connection between costume design and narrative. The research includes episode analysis, such as Go with Me and What Was Missing, and the review of online stills and information from books, internet sources, and videos. A comparative analysis of these characters' costumes against stereotypical designs and gender representations will illuminate the influence of gender roles on costume design. This method will reveal how colors, shapes, and details contribute to storytelling. In animation, costume design conveys character personality, credibility, and the story's context. While traditional, consistent costumes help with character recognition, Adventure Time demonstrates that varied costumes can make characters memorable. This research examines the impact of these diverse costumes on storytelling, focusing on design elements and gender representation for characters like Princess Bubblegum and Marceline.
Semiotic in Narrative of Video Games: A Case Study of Detention (2017)
Authors:   College of Creative Arts, Universiti Teknologi MARA Selangor, Malaysia, Mazlan Johann Mikail , Mohd Roslan Nelysa Nurshafira ,   College of Creative Arts, Universiti Teknologi MARA Selangor, Malaysia
Published: February 2025

The research studies the semiotic elements of video game narratives, with a particular emphasis on the critically acclaimed game Detention (2017). The game is renowned for its ability to intricately weave its narrative through a sophisticated interplay of signs and symbols. Semiotics, the study of signs and their meanings, provides a robust framework for understanding the layers of interpretation that enrich the interactive storytelling experience within video games. The study draws from the theoretical foundations established by influential semioticians such as Ferdinand de Saussure and Charles Sanders Peirce. By focusing on Detention, the research not only explores the game’s narrative but also delves into its historical and cultural context within Taiwan, offering a detailed analysis of its semiotic landscape. The central research questions address the narrative elements, the semiotic analysis of the game's settings, and the role of symbolism in video games, with a particular emphasis on how these elements enhance the depth and richness of the narrative. Adopting a qualitative methodology, the study utilizes Peirce's triadic model of sign classification to analyze the game. The significance of this research lies in its contribution to the understanding of how narrative, semiotics, and symbolism are intricately fused in video game design. The research is well-defined in its objectives and scope, acknowledging its limitations, and aims to bridge the gap between semiotic theory and the immersive world of video games.
Exploring Exaggeration in Animation: A Case Study of One Piece (2023)
Authors:   College of Creative Arts, Universiti Teknologi MARA, Selangor, Malaysia, Iman Ariffin Dhiya Qayyum , Abd Rahman Siti Nur Ain ,   College of Creative Arts, Universiti Teknologi MARA, Selangor, Malaysia
Published: February 2025

This research paper delves into the realm of animation, specifically focusing on exaggeration as a pivotal artistic tool in conveying emotions, enhancing storytelling, and shaping character dynamics. Employing a case study approach, the investigation centres around the renowned anime series "One Piece"(2023), known for its unique art style and expressive character animations. Through a meticulous analysis of selected episodes and character interactions, the study aims to uncover how exaggeration is employed as a narrative device and artistic technique in the animation industry. The research methodology involves a qualitative content analysis and visual interpretation, utilising a framework that considers exaggerated animation's cultural, psychological, and storytelling implications. By examining key scenes, character designs, and the overall visual language of "One Piece," this paper seeks to illuminate the intricate balance between realism and exaggeration, showcasing how these elements contribute to creating a vibrant and emotionally resonant animated world.
POLICY PUBLIC IMPLEMENTATION: PROBLEM OF POLICY IMPLEMENTATION IN AFRICA (SUSTAINABLE DEVELOPMENT GOALS)
Authors: Seidi Dembael
Published: February 2025

The African continent is at a crossroads caused by economic recession, crime, corruption and incompetence of leaders leading to insecurity and poverty. This is the best time to join forces in finding solutions to the challenges facing sustainable development in Africa. This study seeks to assess difficulties in implementing policies and the Sustainable Development Goals (SDGs) with specific reference to Africa. This article is supported by a thorough literature review to ensure that the purpose of the review was clear. A typical literature review method includes several steps including searching, collecting, prioritizing and reading with the aim of identifying important issues and themes which are then presented and critically examined. Africa must fight procedural deviations to properly align the desired objectives. Benua Afrika berada di persimpangan jalan yang disebabkan oleh resesi ekonomi, kejahatan, korupsi dan ketidakmampuan para pemimpin yang menyebabkan ketidakamanan dan kemiskinan. Ini adalah waktu terbaik untuk bergabung dalam mencari solusi atas tantangan yang dihadapi pembangunan berkelanjutan di Afrika. Studi ini berupaya menilai kesulitan dalam mengimplementasikan kebijakan dan Tujuan Pembangunan Berkelanjutan (SDGs) dengan referensi khusus ke Afrika. Artikel ini didukung oleh tinjauan literatur menyeluruh untuk memastikan bahwa tujuan dari tinjauan itu jelas. Metode tinjauan pustaka yang khas mencakup beberapa langkah termasuk mencari, mengumpulkan, memprioritaskan, dan membaca dengan tujuan mengidentifikasi masalah dan tema penting yang kemudian disajikan dan diperiksa secara kritis. Afrika harus melawan penyimpangan prosedural untuk menyelaraskan tujuan yang diinginkan dengan benar.
STRATEGI PENGAMANAN LAUT INDONESIA TERHADAP ARUS PENGUNGSI ILEGAL
Authors: Abyasa Ken Prama , Sari Deasy Silvya , Konety Neneng
Published: February 2025

Indonesia, sebagai negara kepulauan terbesar di dunia, menghadapi tantangan besar dalam mengelola batas maritimnya yang luas, terutama terkait arus pengungsi ilegal. Studi ini menganalisis strategi pengamanan laut Indonesia secara komprehensif, dengan fokus pada modernisasi infrastruktur teknologi seperti sistem radar canggih, pemantauan berbasis satelit, dan drone untuk meningkatkan deteksi dan respons terhadap perlintasan ilegal. Selain itu, kerja sama regional melalui mekanisme ASEAN dan patroli gabungan dengan negara-negara tetangga memainkan peran penting dalam memperkuat pengawasan perbatasan. Studi ini juga menekankan pentingnya kebijakan terintegrasi untuk menangani pengungsi ilegal secara humanis tanpa mengorbankan kepentingan nasional. Dengan menggunakan metode Analytic Hierarchy Process (AHP), penelitian ini mengidentifikasi keamanan nasional sebagai prioritas utama, diikuti oleh penguatan infrastruktur dan kerja sama regional. Hasil penelitian menunjukkan bahwa pendekatan berbasis teknologi, kerja sama lintas negara, dan reformasi kebijakan yang kuat merupakan kunci untuk mengatasi arus pengungsi ilegal di wilayah maritim Indonesia. Indonesia, as the largest archipelagic country in the world, faces significant challenges in managing its vast maritime boundaries, particularly concerning the influx of illegal refugees. This study analyzes Indonesia's maritime security strategies comprehensively, focusing on modernizing technological infrastructure such as advanced radar systems, satellite-based monitoring, and drones to enhance detection and response to illegal crossings. Additionally, regional cooperation through ASEAN mechanisms and joint patrols with neighboring countries plays a crucial role in strengthening border surveillance. The study also emphasizes the importance of integrated policies to manage illegal refugees humanely without compromising national interests. Using the Analytic Hierarchy Process (AHP), the research identifies national security as the top priority, followed by infrastructure enhancement and regional collaboration. The findings indicate that technology-driven approaches, cross-border cooperation, and robust policy reforms are key to addressing the influx of illegal refugees in Indonesia's maritime domain.
PENGAMANAN ASET TETAP TANAH OLEH BADAN PENGELOLA KEUANGAN DAN ASET DAERAH (BPKAD) KOTA CIMAHI
Authors: Wardhani Asyiffa Kusumah , Candradewini Candradewini
Published: February 2025

This research discusses the Safeguarding of Land Fixed Assets by the Regional Financial and Asset Management Agency of Cimahi City. The purpose of this research is to describe the security of land fixed assets by the Regional Financial and Asset Management Agency of Cimahi City. This research is motivated by the records made by the Regional Government of Cimahi City are not in accordance with the actual conditions, signs and stakes are lost due to theft, and there are still many land assets that do not have certificates. This research uses qualitative research methods. The theory used is the theory of Dadang Suwanda which includes administrative security, physical security, and legal security. The method used to test the validity of this data is data source triangulation. The results of this study indicate that the security of land assets carried out by the Cimahi City Regional Financial and Asset Management Agency still does not meet the theory of Dadang Suwanda. In its implementation, Cimahi City Regional Financial and Asset Management Agency often encounters obstacles in each process of securing assets, which include implementing administrative security, physical security, and legal security. However, the management of BPKAD in Cimahi City is currently undergoing improvement and getting better. Evidenced by various control over illegal buildings and the establishment of better communication between BPN and BPKAD. Penelitian ini membahas Pengamanan Aset Tetap Tanah oleh Badan Pengelola Keuangan dan Aset Daerah Kota Cimahi. Tujuan dari penelitian ini adalah untuk mendeskripsikan pengamanan asset tetap tanah oleh Badan Pengelola Keuangan dan Aset Daerah Kota Cimahi. Penelitian ini dilatar belakangi oleh pencatatan yang dilakukan Pemerintah Daerah Kota Cimahi tidak sesuai dengan kondisi sebenarnya, plang dan patok yang hilang karena dicuri, dan masih banyaknya asset tanah yang belum memiliki sertifikat. Penelitian ini menggunakan metode penelitian kualitatif. Teori yang digunakan adalah teori dari Dadang Suwanda yang meliputi pengamanan administrasi, Pengamanan fisik, dan pengamanan hukum. Metode yang digunakan untuk menguji keabsahan data ini adalah triangulasi sumber data. Hasil dari penelitian ini menunjukkan pengamanan asset tanah yang dilakukan oleh Badan Pengelola Keuangan dan Aset Daerah Kota Cimahi masih belum memenuhi teori dari Dadang Suwanda. Dalam pelaksanaannya Badan Pengelolaan Keuangan dan Aset Daerah Kota Cimahi sering terjadi hambatan disetiap prosesnya pengamanan asset, dengan meliputi pelaksanaan pengamanan administrasi, pengamanan fisik, dan Pengamanan hukum. Namun pengurusan BPKAD Kota Cimahi saat ini terus mengalami perbaikan dan semakin membaik. Terbukti dengan berbagai penertiban bangunan – bangunan liar dan terjalinnya komunikasi yang lebih baik antara BPN dengan BPKAD.
PENGETAHUAN, SIKAP, DAN CARA PANDANG MAHASISWA DALAM MENCEGAH KEKERASAN SEKSUAL DI LINGKUNGAN KAMPUS
Authors: Abdullah Hanifiyatus Shamhah , Rinaldo Rinaldo , Apsari Nurliana Cipta
Published: February 2025

Terdapat berbagai macam permasalahan sosial di dalam kehidupan masyarakat yang sangat sulit untuk ditangani. Salah satunya adalah tindak pelecehan atau kekerasan seksual. Tindak pelecehan atau kekerasan seksual dapat dipacu oleh berbagai faktor dan salah satunya adalah faktor lingkungan. Kasus pelecehan atau kekerasan seksual juga dapat terjadi di mana saja termasuk di dalam lingkungan kampus. Oleh karena itu, tujuan penulisan artikel ini adalah untuk mengetahui bagaimana pengetahuan, sikap, serta cara pandang mahasiswa terhadap tindak pelecehan atau kekerasan seksual di lingkungan kampus. Metode penelitian yang digunakan menggunakan studi literatur dengan penggunaan serta penyebaran kuesioner terhadap mahasiswa. Hasil dari penelitian menyebutkan bahwa pemahaman mahasiswa mengenai kasus kekerasan atau pelecehan seksual sudah cukup baik. Mahasiswa juga sudah mengetahui bagaimana caranya bersikap serta memberikan pendapat terhadap kasus pelecehan atau kekerasan seksual. Various kinds of social problems in people's lives are very difficult to handle. One of them is sexual harassment or violence. Sexual harassment or violence can be triggered by various factors and one of them is environmental factors. Cases of sexual harassment or violence can also occur anywhere, including on campus. Therefore, the purpose of writing this article is to find out how the knowledge, attitudes, and perspectives of students towards acts of harassment or sexual violence in the campus environment. The research method used is a literature study with the use and distribution of questionnaires to students. The results of the study stated that students understanding of cases of violence or sexual harassment was quite good. Students also know how to act and give opinions on cases of sexual harassment or violence.
ANALISIS KALIMAT MAJEMUK SUBORDINATIF DENGAN SATU KLAUSA ATASAN DAN DUA ATAU LEBIH KLAUSA BAWAHAN DALAM BAHASA RUSIA
Authors: Purnama Dewi Anggraeni , Fauziyah Rohmah Siti Hasna , Rizal Iqbal Abdul
Published: February 2025

Penelitian ini berjudul Analisis Kalimat Majemuk Subordinatif dengan Satu Klausa Atasan dan Dua atau Lebih Klausa Bawahan dalam Bahasa Rusia. Tujuan dari penelitian ini adalah untuk mengidentifikasi kelas kata apa saja yang diacu oleh klausa bawahan pada klausa atasan, mengidentifikasi fungsi sintaksis yang diisi oleh klausa-klausa bawahan dalam kalimat majemuk subordinatif, serta makna apa saja yang dimiliki oleh klausa bawahan tersebut. Metode yang digunakan adalah metode analisis deskriptif, yang memperhatikan bentuk, susunan dan hubungan antara satuan lingual. Data penelitian diambil dari roman berbahasa Rusia karya A.N. Tolstoj yang berjudul “Voskresenie” terbitan Pravda, Moskwa tahun 1918. Hasil penelitian menunjukkan bahwa kelas kata yang dapat diacu oleh klausa bawahan pada klausa atasan dapat diisi oleh kelas kata nomina, ajektiva, pronomina, verba, dan adverbia. Fungsi sintaksis yang dimiliki klausa bawahan dapat berupa subjek, predikat, objek, dan keterangan. Makna yang dimiliki oleh klausa bawahan meliputi makna objektif, tujuan, temporal, atributif, lokatif, kausal, dan konsesif.
Casting of Aluminium Foam with Defined Porosity Using DoE
Authors: Kopanica Z. , Herman A. , Kříž A.
Published: February 2025

Closed cell aluminium foam offers an interesting combination of properties such as high energy absorption, stiffness, strength and low density. These properties give it great potential as an impact absorbing material which can be used in the automotive industry, military, civil engineering and others. To achieve these properties, the structure of the foam is important. The number, shape, regularity and distribution of pores are of great importance. A major disadvantage of aluminium foam is its low viscosity and consequently poor castability. Casting of aluminium metal foam is achieved by a thermally activated chemical reaction of the foaming agent calcium carbonate (CaCO3). Different amounts of foaming agent and reaction times have been used to achieve defined porosity. With regard to process stability and manufacturing cost, optimal parameters to achieve defined porosity were found using DoE (Design of Experiment) methodology. As a result, longer agitation times were found to produce more homogeneous foams as the calcium carbonate powder was better distributed, consequently more calcium carbonate powder needs to be added as it reacts and is consumed when in contact with the melt. Experiments were performed using gravity casting and simple shapes can be made this way. Efforts are currently being made to establish a manufacturing process that can be used to produce castings with defined geometry.
Depth-Averaged Modeling of Skimming Flow over a Bevel-Shaped Stepped Spillway
Authors: Zerihun Yebegaeshet T.
Published: February 2025

The air-water flow properties of skimming flow over a moderately sloping stepped spillway with beveled-face steps were investigated using a non-hydrostatic depth-averaged mixture flow model. The proposed model couples the Boussinesq-type equations with the depth-averaged air transport equations. Additionally, it incorporates a depth-averaged k − ε turbulence model to deal with the turbulent issue of the self-aerated flow. The numerical solutions of these higher-order equations were obtained by means of a hybrid finite-volume and finite-difference scheme and were validated with a set of data from large-scale experiments. For the flow condition considered, the simulation results closely correlated with the experimental data, thereby demonstrating the model’s capacity for capturing the effects of air entrainment on the dynamic characteristics of the flow. Furthermore, the energy dissipation performance of the stepped spillway was examined. The results attested that the total energy loss decreases as the drop number increases, highlighting the link between the loss of the flow’s kinetic energy and the variation of the spillway discharge. With the established acceptable accuracy, the proposed model is well suited to analyzing the mean flow characteristics of aerated flow in such a type of stepped chute.
Environmental Life Cycle Assessment of Healthcare Waste Valorisation Alternatives
Authors: Zlaugotne Beate , Zandberga Anda , Gusca Julija , Kalnins Silvija Nora
Published: February 2025

Infectious healthcare waste (iHCW), after microbial inactivation treatment, primarily ends up in landfills. Although the morphological composition of iHCW depends on the type of health facility, predominantly HCW consists of plastic and textile waste. Furthermore, after the treatment iHCW is cleaner from a microbiological contamination perspective than household waste, making it a highly valuable resource. Recycling iHCW has environmental and economic benefits and by valorising iHCW, it would be possible to reduce the amount of landfilled waste and use it as a resource. The aim of the research is to understand the environmental consequences and potential benefits of treated iHCW valorisation scenarios through the ‘gate-to-gate’ (from iHCW generation at medical facilities to end-of-life or recovery) life cycle assessment framework and to compare it with the existing practice – landfilling with functional unit 1 ton of treated iHCW and using ReCiPe 2016 (Midpoint, Hierarchist perspective) method. Valorisation scenarios (VS) analysed the use of treated HCW as a substitute of feedstock for reinforced asphalt, reinforced cement, RDF, syngas, acoustic panel and plastic components used for hydroponics. The results of the LCA demonstrate that from the environmental impact perspective, the best scenarios are syngas production (VS4) with cumulative result −11Pt and −237 kg CO2 eq for global warming impact category and RDF (VS3) with result −5Pt and −195 kg CO2 eq for global warming impact category, as the entire iHCW flow is recycled into energy. However, when recycling waste, the most valuable product must be created, and then the best results from plastic recycling are plastic components for hydroponics (VS6) with result 50Pt and 1181 kg CO2 eq for global warming impact category and reinforced asphalt (VS1) with result 53 Pt and 1246 kg CO2 eq for global warming impact category. From textile recycling acoustic panels (VS5) with result 55 Pt and 598 kg CO2 eq for global warming impact category and reinforced cement (VS2) with result 55 Pt and 603 kg CO2 eq for global warming impact category. Therefore, additional scenario was created where plastic, textile and residual iHCW streams are fully recycled and fully eliminating landfilling. The results show that BAU with result 75 Pt and 1509 kg CO2 eq for global warming impact category has the greatest environmental impact compared to any of the VS considered in this research. Of the total scenario impacts, the largest impact is caused by waste disposal, followed by transport, which has a similar impact in all scenarios due to assumptions about the distance to be transported, and iHCW treatment also has a similar impact in all scenarios, but the bigger difference is the environmental benefit from recycled waste. Based on the LCA results, recommendations for the stakeholders are developed.
Gender Bias in Succession in Family Companies: Theoretical Analysis With Application to a Portuguese Region
Authors: Tomé Eduardo , Campos José , Gromova Elizaveta
Published: February 2025

Objective: In this paper we analyse the problematic of succession in family businesses, and we specifically address the situation of women within that process. The problem is important because, in one hand. family business are among the most prevalent in the economy, and because, in the other hand laws, and rules define gender equality as a very important social rule.
 
Method: We first make a literature review on the topic using the SCOPUS database, and after we detail the results of study made in the Portuguese region of Madeira Island
 
Results:  We conclude that, rather surprisingly, women are discriminated in succession, and this reality has been described in theory and in same empirical studies, and is confirmed, sadly, in our study about Madeira Island.
 
Research Implications: The implications of these results should be great – it is of no use having all the laws published if they are not enforced and women are still harmed and discriminated in such an important social matter
he practical and theoretical implications of this research are discussed, providing insights into how the results can be applied or influence practices in the field of [insert field of study]. These implications could encompass [list impacted areas or sectors].
 
Originality/Value: The limitation of this study is that the sample we use in the study is small, but we would underline that the findings of our study are very much aligned with previous ideas. It seems that the old fashioned sexism so well described by Beauvoir in the middle of last century (Beauvoir, 1949) is still a fact. With those results we wonder if that sexism, culturally ignited and learnt as it, can be eliminated. Finally the paper is original because we first make a literature review and then present a case study that illustrates this theory.