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This study aims to obtain a lower bound on the eigenvalue of the smallest modulus in a general weighted regular Sturm-Liouville problem with mixed boundary conditions. The problem is expressed as -u′′(x) + q(x)u(x) = λr(x)u(x) over the interval [a,b] with u′(a) = u(b) = 0. In 1988 Mingarelli [31]...

Effective agricultural monitoring is essential for ensuring food security and efficient resource management. This study aimed to use Synthetic Aperture Radar (SAR) from Sentinel 1 and Optical imagery from Sentinel 2 multi spectral instrument (MSI) for mapping and monitoring Maize fields in the...

The optical investigation of tungsten diphosphide (WP2), a type-II Weyl semimetal, reveals its exceptional topological and anisotropic electronic properties. Through resistivity and Fourier-transform infrared spectroscopy measurements, WP2 exhibit high conductivity and anisotropic transport...

Special Economic Zones (SEZs) after their success in Asia specifically China have been replicated worldwide to achieve the benefits realised by countries that successfully implemented them. The benefits realised from these zones range from technology spillovers, employment and attraction of...

Climate change is altering hydrological patterns, leading to extreme weather events such as prolonged droughts, intense floods, and shifts in precipitation patterns threatening water supply systems in the Barotse Floodplain. This has adversely affected the rural communities in the Barotse...

Schistosomiasis is a neglected tropical disease and the second most fatal tropical disease. The 2024 World Health Organization (WHO) report indicates global mortality rates of 130,000 and 150,000 schistosomiasis deaths attributed to the causative agents Schistosoma mansoni and S. haematobium,...

Carbon trading has emerged as a leading solution to reduce greenhouse gas emissions, combat climate change, and deliver significant environmental, economic and social benefits for communities in developing countries. However, there are concerns about how it is being implemented and whether it is...

The Urban Heat Island (UHI) effect is about significant temperature increase in the Central business district (CBD) in comparison to the outskirts. It has the potential to amplify heat waves and hot seasons because of their intensity. UHI causes not only thermal discomfort, but also decreases in...

Human activities such as burning fossil fuels, cutting down forests and livestock farming have caused an increase in the earth’s surface temperature by 1.0 °C since the preindustrial levels. Warmer temperatures over time are altering global weather patterns. These alterations have been resulting...

As the global population continues to grow, ensuring food security remains a paramount challenge, especially in light of threats like devastating locust invasions. The agricultural sector in Zambia, particularly in the Sikaunzwe area of Kazungula district, Southern Province, faces unique...