Ambo University

The Relationship Between 3D Printing Technology and STEM Education Outcomes: The Moderating Role of Institutional Infrastructure in Ethiopian Secondary Schools

The integration of 3D printing technology (3DPT) into STEM education has transformed teaching and learning through experiential and design-based approaches. However, the effectiveness of this technology is largely shaped by the institutional environment in which it is implemented...

Intensifying compound drought–heatwave events weaken ecosystem water-use efficiency in the Nile River Basin

Climate warming has intensified compound drought–heatwave (CDHW) events worldwide, posing growing threats to ecosystem carbon–water dynamics. However, the impacts of CDHWs on ecosystem water-use efficiency (WUE), particularly event sequencing, drought memory, and climatic heterog...

Machine learning analysis for the thermophoretic particle deposition in casson nanofluid with porous medium and heat generation

The aim of this work is to evaluate the impacts of heat generation on the radiative flow of Casson nanofluid over a sheet under LTNE circumstances while microbes are present, utilizing machine learning techniques based on the Levenberg-Marquardt algorithm. A simple method for mov...

Phytofabrication and biological assessment of selenium nanoparticles using Crataegus songarica extract

In this study, selenium nanoparticles (SeNPs) were successfully synthesized using a green approach with Crataegus songarica K. Koch aqueous extract, which served as a natural reducing and stabilizing agent. The formation of SeNPs was confirmed by UV-Vis spectroscopy, which exhibi...

A novel hybrid multilayer hyper chaotic and nonlinear modular encryption algorithm for enhancing the security of multimedia information in IoT video codecs H.264 and H.265

Several multimedia encryption algorithms suffer from security and performance limitations, including low resistance to cyberattacks, high computational overhead, potential quality degradation, and codec format incompatibility. To address these challenges, we proposed an encryptio...

Adoption of complementary green production technologies among Ethiopian smallholder farmers

Abstract BACKGROUND Green production technologies (GPTs) are essential for improving the ecological sustainability and economic efficiency of agriculture. However, evidence on the joint adoption, intensity of use, and knowledge of multiple GPTs remains limited in Ethiopia. This s...

Duration-and frequency-dependent effects of khat chewing on lipid metabolism and kidney function: a comparative cross-sectional study

Abstract Chewing khat, ‘ Catha edulis’ is becoming more common in our society with increased harmful health repercussions, such as lipid metabolism issues and impaired renal function. There is a scarcity of data and contradictory findings on this topic. Therefore, this study aime...

Therapeutic potential of the genus Zehneria (Cucurbitaceae): a systematic review of ethnomedicinal uses, phytochemistry, and pharmacological activities, with a predominant focus on Zehneria scabra

Abstract Background The genus Zehneria (Cucurbitaceae) comprises medicinal plants widely used in traditional healthcare systems across Africa and Asia. Species such as Zehneria scabra are traditionally employed to treat infectious diseases, gastrointestinal disorders, inflammator...

Comparing bio based and ecosystem based approaches for climate change mitigation and disaster risk reduction

Climate change is increasing the frequency and severity of extreme weather events, threatening ecosystems, livelihoods, and economic systems worldwide, particularly in developing countries. Nature-based approaches, especially bio-based and ecosystem-based strategies, have gained...

Genotype × environment interaction and yield stability of food barley (Hordeum vulgare L.) varieties using AMMI and GGE biplot models

Abstract Background Barley is a crucial crop worldwide, but it faces significant production challenges due to limited adaptable varieties, poor management practices, and environmental factors. Food barley varieties often struggle in unfamiliar environments, leading to crop loss....

Urbanization induced LULC transformation, its effects on land surface temperature and spectral index responses in Adama city, Ethiopia

Urbanization has significantly transformed land use/land cover (LULC) patterns and urban environmental conditions. This study examined urbanization-induced LULC transformation, its effects on land surface temperature (LST) dynamics, and spectral index responses in Adama City. Spa...

AI-driven circular plastic recycling model based on q-Fractional fuzzy Z-information

This study focuses on creating an AI-based circular plastic recycling decision-making framework to enhance the sustainability and operational efficiency of plastic waste management systems in a decision-making environment with unknown decision conditions. The proposed recycling f...

Antimicrobial susceptibility pattern of selected diarrheagenic pathogens isolated from children under five years, Southwest Ethiopia, June - August, 2023

Diarrheal diseases are a common disease worldwide in children under five years of age, especially in developing countries. Enteric bacteria are the most common causative agents of diarrhea and have become increasingly challenging to prevent and treat due to the emergence of antim...

Imbalance-aware explainable machine learning for concurrent child undernutrition modeling

Abstract Child undernutrition remains a significant public-health issue in Ethiopia, shaped by socioeconomic, environmental, and health-related factors. This study develops a machine-learning (ML) classification model that accounts for concurrent nutritional outcomes in male and...

Distribution, major threats, and management methods of maple tree species in temperate forests: a systematic review and meta-analysis

Despite its contribution to multiple ecosystem goods and services, maple tree species distribution, survival, and growth are declining due to multiple interconnected threats. Therefore, inclusive understanding of distributions, threats, and silvicultural management is essential f...