This thesis examines the determinants of capital structure in the MENA coun- tries. The main interest is to investigate both financial firms specially banks and non-financial firms. This study test the main theories of capital structure, namely: trade off theory and pecking orde…
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Balance is critical for health and well-being, but the ageing process is a key risk factor for poor balance which may lead to falls, disability, and death in older adults. The benefits of physical activity (PA) are recognised in policy and guidelines for fall prevention, where m…
The Secondary Electron signal is traditionally used in Scanning Electron Microscopy to provide topographical information from the surface of a sample. The physics of Secondary Electron signal generation and emission is dependent on further mechanisms, beyond surface topography, …
It is proposed to continue operating the graphite moderated Advanced Gas-cooled Reactor (AGR) fleet past its design life. Nuclear graphite's properties change in reactor and our limited mechanistic understanding of the relationship between graphite structure, across different le…
Small water ice crystals are the main component of cold tropospheric clouds such as cirrus. Because these clouds cover large areas of our planet, their role in the radiation budget of incoming and outgoing radiation to the planet's surface is important. At present, the represent…
Atopic eczema is an incurable disorder of the skin. Sufferers are afflicted with hypersensitivity to environmental agents such as soaps (detergents), animal dander, pollen, specific foods and sometimes even water. Genetic mutations in atopic eczema compromise the development of …