Ergocalciferol is vitamin D2. Vitamin D is important for the absorption of calcium from the stomach and for the functioning of calcium in the body. Ergocalciferol is used to treat hypoparathyroidism (decreased functioning of the parathyroid glands).
LOT - Limit of Technology [Internet]; August 7, 2016 [cited 2016 AUG 7]. Available from: https://www.allacronyms.com/LOT/Limit_of_Technology.
An ICT system is a set-up consisting of hardware, software, data and the people who use them. It commonly includes communications technology, such as the Internet. ICT and computers are not the same thing. Computers are the hardware [hardware: the physical components of a computer ] that is often part of an ICT system. This is why your GCSE is not just about computers but about how, why and when people use them. It is the power of computers and communications that has allowed ICT systems to become so important.