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All Journal Konfrontasi: Jurnal Kultural, Ekonomi dan Perubahan Sosial Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Britain International of Humanities and Social Sciences (BIoHS) Journal Britain International of Exact Sciences Journal (BIoEx Journal) Britain International for Linguistics, Arts and Education Journal (BIoLAE Journal)
Belay Sitotaw Goshu
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Religion Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Social Sciences Other

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Modeling the Recovery Dynamics of Coronal Dimming across Solar Activity Phases: A Theoretical Approach Belay Sitotaw Goshu
Britain International of Exact Sciences (BIoEx) Journal Vol 7 No 1 (2025): Britain International of Exact Sciences Journal, January
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v7i1.1216

Abstract

This study investigates the recovery of dynamics of coronal dimmings across solar activity phase. The impact of plasma density, magnetic field evolution, and temperature distributions on the formation of core and secondary dimming regions in solar and astrophysical plasma environments. Using advanced simulation techniques, we modeled the evolution of plasma density and temperature, revealing significant temperature gradients and distinct density profiles.. The results show a marked decrease in plasma density at the core regions, surrounded by secondary dimming zones, consistent with observed phenomena in solar flares and coronal mass ejections (CMEs). Thermal conduction plays a crucial role in maintaining high temperatures at the core, while radiative cooling is prominent in the outer plasma regions, contributing to the cooling and dimming effects. The study also highlights the importance of magnetic flux tubes in shaping these plasma structures, with the symmetry of the density and temperature profiles supporting the confinement of these structures. These findings contribute to a better understanding of the physical processes governing plasma behavior in astrophysical contexts such as solar flares, stellar atmospheres, and galaxy clusters. Additionally, our results emphasize the need for further multi-dimensional simulations and empirical observations to validate and expand upon these findings, ultimately providing insights into space weather phenomena and other plasma-related processes in the universe. The study's findings have potential implications for space weather forecasting, stellar physics, and plasma dynamics in various astrophysical systems.
Automated Detection of Blood Cancer Using Advanced Image Analysis Techniques Belay Sitotaw Goshu
Britain International of Exact Sciences (BIoEx) Journal Vol 7 No 1 (2025): Britain International of Exact Sciences Journal, January
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v7i1.1229

Abstract

This work investigates the use of sophisticated image analysis methods to differentiate between benign and cancerous blood cells directed on different phases of pro-B and pre-B lymphoblast growth. Binary image processing, segmentation, and masking techniques were used for 500 blood cell pictures. One hundred eighty (180) were determined to be benign and 320 to be malignant, with considerable morphological differences such as alterations in cytoplasmic ratios and aberrant nuclear structure. With 95% accuracy, these characteristics are made between benign and malignant cells to distinguish. Significant morphological variations, including anomalies in the atom form and changes in the cytoplasmic ratios, were detected, and they could extricate between malignant and benign cells with 95% accuracy. More features could be extracted from the images based on segmentation, especially when identifying cancerous cells early in their development. These results imply that automated techniques can be invaluable in helping pathologists identify hematopoietic malignancies such as acute lymphoblastic leukemia (ALL) at an early stage. Better therapy results could result from increased diagnostic speed and accuracy brought about by this automation. Further study is necessary to improve the generalizability of these systems across datasets.
Exploring the Role of Project-Based Learning in Fostering Critical Thinking Skills Belay Sitotaw Goshu; Muhammad Ridwan
Britain International of Linguistics Arts and Education (BIoLAE) Journal Vol 6 No 3 (2024): Britain International of Linguistics, Arts and Education - November
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/biolae.v6i3.1201

Abstract

This study explores the role of teacher support, collaboration, and group discussions in enhancing students' critical thinking skills during project-based learning (PBL). Through qualitative analysis, the study examines students' perceptions of the additional support provided by teachers, suggestions for improving PBL to foster critical thinking, and the challenges faced during the project. Results indicate that teachers' involvement as facilitators is crucial for guiding students through complex tasks and ensuring they remain on track. Students reported a perceived improvement in their critical thinking skills, attributing it to the inquiry-based nature of PBL that encouraged deep engagement with the subject matter. However, several challenges emerged, including time constraints, difficulties with resource access, and issues related to group dynamics, such as coordination and leadership. Suggestions for improvement emphasized the need for clearer project guidelines, more diverse resources, and a structured approach to problem-solving. The study also highlights the essential role of teachers not just as instructors but as mentors, guiding students' learning while encouraging collaboration and communication within groups. Overall, PBL was found to foster high levels of student engagement, motivation, and active participation, contributing to the development of critical thinking. However, overcoming logistical and interpersonal challenges is essential to fully realizing the benefits of PBL in enhancing students' cognitive and collaborative skills.
Issues related to the quality of secondary education: the Case of Dire Dawa, Ethiopia Belay Sitotaw Goshu; Melaku Masresha Woldeamanueal; Muhammad Ridwan
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 7, No 4 (2024): Budapest International Research and Critics Institute November
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v7i4.7977

Abstract

This study aimed to examine concerns regarding the quality of education in secondary schools in Dire Dawa City. It reflects the views of teachers and educational administrators on educational quality, issues, and recommendations for improving quality. A descriptive survey was conducted for this purpose. In this study, 235 city teachers were randomly selected. Despite access improvements, data shows slow progress in improving quality education in Ethiopia. Government officials, teachers, parents, teachers, students, and others expressed concern about the quality of education in general education schools in Dire Dawa City. The results revealed that schools should also provide an educational environment suitable for teaching and learning activities. In-service training or professional development is one of the key factors in quality education. However, the result revealed that 43% of the survey respondents had not attended in-service training in the past two years. Furthermore, 91.9 percent of the respondents believed cheating was a crucial problem for quality education. The local government should work with the university to address most of the issues raised in this study.
Space Debris and Its Impacts on Space Exploration and Mitigation Strategies Belay Sitotaw Goshu
Britain International of Exact Sciences (BIoEx) Journal Vol 7 No 1 (2025): Britain International of Exact Sciences Journal, January
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v7i1.1254

Abstract

The increasing proliferation of space debris from 1960 to 2021 poses significant environmental challenges for space operations. This study aims to analyze the historical trends in space debris creation, focusing on the rise of payloads and rocket debris, and assess their implications for space sustainability. Utilizing data from various space agencies and surveillance networks, we examined the growth patterns of different object types, including debris, payloads, rocket bodies, and others. The analysis revealed a sharp increase in payload deployment since 2000, driven by the rise of satellite-based technologies and the commercialization of space. Similarly, rocket debris has also seen an uptick, though at a slower rate. Debris objects, which account for the largest share, pose significant risks due to their potential to cause collisions and further fragmentation. These trends highlight the urgency of implementing effective debris mitigation strategies to prevent the Kessler Syndrome a cascade of collisions that could render certain orbits unusable. Key mitigation strategies discussed include Active Debris Removal (ADR), end-of-life disposal plans, improved space traffic management, and design-for-demise techniques. The study underscores the need for international cooperation and the adoption of innovative technologies to ensure the sustainable use of space. The findings provide valuable insights for policymakers and stakeholders in developing comprehensive frameworks for space environmental management.
Amplified Local Cooling Potential of Forestation in Eastern Ethiopia’s Arid Lowlands under Climate Change: Insights from Dire Dawa, Shinile, and Somali Regions Belay Sitotaw Goshu; Yonas Tadesse Alemu
Britain International of Exact Sciences (BIoEx) Journal Vol 8 No 1 (2026): Britain International of Exact Sciences Journal, January
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v8i1.1393

Abstract

This study investigates the biophysical cooling effects of forestation in eastern Ethiopia’s arid lowlands, Dire Dawa, Shinile, and Somali regions, amid climate warming, using satellite-derived data (MODIS, ERA5-Land) from 2003–2023 and CMIP6 projections to 2080 under SSP2-4.5 and SSP5-8.5 scenarios. Pairwise comparisons of land surface temperature (LST), evapotranspiration (ET), and albedo between forested and open lands (grassland, cropland, shrubland) revealed a mean cooling effect of 3.5–4.0 °C, driven primarily by enhanced ET (1,250–1,350 mm/year in dry seasons) offsetting albedo-induced warming (+18–24 W/m²). Seasonal dynamics showed amplification during dry periods (up to 4.5 °C), with Theil-Sen trends indicating a 0.14–0.18 °C/decade increase in cooling, linked to soil moisture declines (-0.004 m³/m³/decade). Structural equation modeling confirmed ET’s dominance (β=0.72 for ΔLST), though albedo’s role rises to 40% by 2080 under high emissions due to stomatal closure reducing ET by 15–20%. Projections forecast sustained amplification (4.2–4.7 °C) under moderate scenarios with 15% tree cover increase, but diminution (3.2–3.7 °C) under high emissions. Spatial analysis highlighted groundwater-dependent efficacy, strongest in Somali’s rangelands. Findings underscore forestation’s potential for heat mitigation, supporting initiatives like Ethiopia’s Green Legacy and Right Tree in the Right Place projects, while emphasizing adaptive strategies to balance water competition and albedo effects for climate-resilient land management.
Geomorphological, Electrical Resistivity and Magnetic Methods for Assessing Groundwater Potential in Adet Town, West Gojam, Ethiopia Kirubel Molla; Belay Sitotaw Goshu
Britain International of Exact Sciences (BIoEx) Journal Vol 8 No 1 (2026): Britain International of Exact Sciences Journal, January
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v8i1.1395

Abstract

Imagine the sun-scorched fields of Adet Town, West Gojam, and Ethiopia, where families rise each day with a flicker of hope, their hands calloused from carrying water across cracked earth. This study, "Geomorphological, Electrical Resistivity and Magnetic Methods for Assessing Groundwater Potential," breathes life into their dreams, weaving a heartfelt narrative through science to uncover hidden aquifers beneath volcanic plains. Guided by the Amhara National Regional State Water Irrigation and Energy Office Bureau (ANRSWIEOB), we walked the land, 50-meter traverses marking our steps, mapping magnetic fields that dance from 33,900 to 37,400 nT, resistivity layers hinting at low-conductivity zones, and geomorphic contours revealing a 644-meter eastward drop shaped by ancient floods. The findings are a beacon of resilience: magnetic anomalies, like those at PpW3 and Shena, signal fractured basalt where water might pool, with variability (σ up to 3,120 nT) reflecting tectonic gifts and challenges, dry wells a stark lesson from Tali Spring. Resistivity profiles illuminate perched aquifers, while Nile-like escarpments guide us to faulted recharge paths, echoing Adet’s rugged terrain. Statistically, slopes (-1.1 nT/m) and ranges (3,500 nT in BH BRIG) highlight deep structures, promising yields yet demanding care to avoid depletion, as seen in Lake Tana’s decline. Humanly, it’s a story of community, elders sharing spring lore, children dreaming of wells, scientists blending past wisdom with modern tools. The results reveal hope amid scarcity, urging sustainable stewardship. The land speaks, and we listen, turning geophysical whispers into flowing lifelines for Adet’s people, a testament to humanity’s enduring bond with the earth.
Mathematical Modeling and Optimization of the Anomalous Hall Angle in Magnetic Topological Semimetals Belay Sitotaw Goshu
Britain International of Exact Sciences (BIoEx) Journal Vol 8 No 1 (2026): Britain International of Exact Sciences Journal, January
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v8i1.1396

Abstract

Magnetic topological semimetals like Co3Sn2S2 exhibit a large anomalous Hall angle (θA), making them promising for magnetic sensors and spin-orbit torque (SOT) devices, but scalable synthesis and real-time control remain challenging. This study aimed to predict and optimize θA in Co3Sn2S2, focusing on scalable thin-film deposition and dynamic modulation for enhanced device applicability. A predictive model (θA = arctan(σxy/σxx)) was validated against experimental data (RMSE = 10.59°), followed by simulations of thin-film deposition (substrate temperature: 200–600°C, deposition rate: 0.1–2.0 Å/s) and dynamic modulation (strain: -2% to 2%, electric field: 0–0.5 V/nm). The model accurately predicted θA for Fe-doped Co3Sn2S2 (25.6° vs. 24.8° experimental) but overestimated TbPdBi (error: 10.8°). Thin-film deposition at 208°C and 0.1 Å/s yielded θA = 7.2° (σxy = 528 Ω⁻¹ cm⁻¹, ρxx = 239 μΩ cm), below experimental benchmarks (24.8°). Dynamic modulation at strain = 1.8% and electric field = 0.50 V/nm achieved θA = 7.6° (σxy = 1155 Ω⁻¹ cm⁻¹, ρxx = 115 μΩ cm), suitable for basic sensors but insufficient for SOT devices (θA > 20°). While the framework captures θA trends, current synthesis and modulation methods yield θA values below device requirements, necessitating improvements. Higher deposition temperatures (500°C–600°C), stronger modulation (strain > 3%, electric field > 1.0 V/nm), and advanced modeling (e.g., DFT-derived Berry curvature) are recommended to achieve θA > 15°, enabling practical AHE applications.
Spirals of Nature: Geometry, Growth, and the Dance of Entropy Belay Sitotaw Goshu
Britain International of Exact Sciences (BIoEx) Journal Vol 8 No 2 (2026): Britain International of Exact Sciences Journal, May
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v8i2.1411

Abstract

The concept of pasta serves as a unique lens to explore the interplay of physics and biology across scales, from everyday phenomena to cosmic events. This study integrates three phenomena spaghetti breaking, nuclear pasta in neutron stars, and spiral patterns in biological systems to illustrate fundamental principles like elasticity, wave propagation, extreme matter, and biological optimization. The purpose was to develop a unified computational framework to demonstrate how pasta bridges physics and biology, providing educational insights. Three simulations were conducted using Python. Spaghetti breaking was modeled as a 1D elastic rod, solving the wave equation to study stress wave propagation. Nuclear pasta was simulated via molecular dynamics, modeling 100 nucleons to identify gnocchi, spaghetti, and lasagna phases. Spiral patterns were generated using Vogel’s (1979) phyllotaxis model (r=c√n,θ=n∙〖137.5〗^o for 500 seeds, comparing their density to a circular arrangement. The spaghetti-breaking simulation showed stress waves causing multiple fractures, with 5.00 Joules of elastic energy released. Nuclear pasta exhibited a shear modulus of 1.23×1020 Pa, highlighting its role in gravitational wave production. The spiral simulation achieved a 15.22% density increase (bounding circle). Pasta effectively unifies physics and biology, offering a valuable educational tool despite density calculation discrepancies. Adjust parameters like c or the number of seeds in the spiral simulation and enhance models to 3D for accuracy.
Co-Authors Bikila Merga Deresa Kirubel Molla Melaku Masresha Woldeamanueal Melaku Masresha Woldemariam Muhammad Ridwan Muhammad Ridwan Syarifuddin Yonas Tadesse Alemu