It is commonplace for organisations to collect personal information to be processed and stored on their systems. Until recently, there was no comprehensive legislation that addressed the ‘processing’ of personal information by organisations in South Africa. The Protection of Personal Information Bill (“POPI”) was signed into law in November 2013 and is expected to come into effect, later this y...

Chloride (Cl-) is an essential micronutrient for plant growth, but can be toxic at high concentrations resulting in reduced growth and yield. Although saline soils are generally dominated by both sodium (Na+) and Cl- ions, compared to Na+ toxicity, very little is known about physiological and genetic control mechanisms of tolerance to Cl- toxicity. In hydroponics and field studies, a bread whea...

smooth coefficients aα(x), L+ be a formally adjoint differential operation. Let L0, L0 be minimal operators (i.e., for example, D(L0) is the clozure of C∞ 0 (Ω) in the norm of the graph ‖u‖L = ‖u‖L2(Ω)+‖Lu‖L2(Ω)), and L, L+ be maximal expansions of L,L+ in the space L2(Ω) respectively (i.e. L = (L0 ) ∗, L+ = (L0)∗), L̃ = L|D(L̃) where D(L̃) is the clozure of C∞(Ω̄) in the norm of the graph ‖u‖L and...

The on-site Coulomb repulsion $U$ is the key ingredient for describing magnetic properties of Mott insulators, leading to a popular belief that many limitations density-functional theory based methods can be cured by artificially incorporating such interactions localized electrons in model form. layered antiferromagnet $\mathrm{Na}\mathrm{Mn}{\mathrm{Cl}}_{3}$ reveals quite different story: whi...