The literature contains conflicting ideas about the effectiveness of diagrams, and their constituent symbolism as teaching and learning tools. In addition, only limited research has been specifically conducted on the ...

An extract of the tuber of Callilepis laureola is regarded as the source of a powerful therapeutic agent, known as Impila. Its use is associated with fatal hepatic and renal necrosis, the renal toxin being atractyloside ...

pH studies are used to gain insight into chemical mechanisms of enzyme catalysed reactions. However, perhaps the most important practical point that is often overlooked in pH studies is control of the ionic strength of ...

Lactic acid bacteria produce pediocin-like bacteriocins designated as Class Ha. These antimicrobial peptides are antagonistic against Listeria monocytogenes and other closely related Gram-positive bacteria Self-protection ...

Cancer is a disease that is caused by mutations in somatic cells. Metastasis is the major cause of death from cancer and often complicates treatment. Malignant tumours secrete degradative enzymes such as cathepsin L which ...

The mechanisms by which altered processing, distribution and secretion of proteolytic enzymes occur, facilitating degradation of the extracellular matrix in invasive and metastatic cells, are not fully understood. Studies ...

Kinases play a crucial role in regulating cellular signaling cascades, making them therapeutic targets for several human diseases. In human cancers, mis-regulation and mutations of kinases such as EGFR (epidermal growth ...

Apoptosis is a regulated "programme" by which cells are induced to die in a manner which does not result in pathological inflammatory reactions, and involves dismantling of the cell into membrane-bound fragments that are ...

As pollution becomes an ever-increasing threat to the global environment pressure is being placed upon industry to "clean-up" its act, both in terms of reducing the possibility of new pollution and cleaning up already ...

Infectious bursal disease virus (IBDV) causes an acute and highly contagious disease affecting young chickens, which is responsible for significant losses in the poultry industry world-wide. The virus specifically infects ...