Publications by authors named "A H Ragazzon-Smith"
Article Synopsis
- - Rice is a key food source in Saudi Arabia, but there's limited information about its toxic element levels, particularly regarding inorganic arsenic (i-As), cadmium (Cd), lead (Pb), and mercury (Hg).
- - Analysis of both imported and locally grown Hassawi rice showed that i-As was present in concerning concentrations, with imported rice containing higher levels (73 µg/kg) compared to Hassawi rice (43 µg/kg).
- - The estimated daily exposure for adults consuming imported rice in one city was 0.3 µg/kg-bw/day, which is below the former WHO safety threshold but exceeds the European Food Safety Authority's (EFSA) lower limit for skin cancer risk.
It is a challenge to select the right target to treat conditions without affecting non-diseased cells. Cancer belongs to the top 10 causes of death in the world and it remains difficult to treat. Amongst cancer emerging targets, silent information regulator 1 (SIRT1) - a histone deacetylase - has shown many roles in cancer, ageing and metabolism.
View Article and Find Full Text PDFCathodic protection (CP) is being increasingly used on reinforced concrete structures to protect steel reinforcing bars from corrosion in aggressive conditions. Due to the complexity of environmental conditions, the design specifications in national and international standards are still open to discussion to achieve both sufficient and efficient protection for reinforced concrete structures in engineering practices. This paper reports an experimental research to investigate the influence of chloride content on concrete resistivity, rebar corrosion rate and the performance of CP operation using different current densities.
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