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Ibn Sina wrote at least one treatise on alchemy, but several others have been falsely attributed to him. His Logic, Metaphysics, Physics, and De Caelo, are treatises giving a synoptic view of Aristotelian doctrine, though Metaphysics demonstrates a significant departure from the brand of Neoplatonism known as Aristotelianism in Ibn Sina's world; Arabic philosophers[who?][year needed] have hinted at the idea that Ibn Sina was attempting to "re-Aristotelianise" Muslim philosophy in its entirety, unlike his predecessors, who accepted the conflation of Platonic, Aristotelian, Neo- and Middle-Platonic works transmitted into the Muslim world.

What doctrine is some of Avicenna's works based around?
Answer: Aristotelian doctrine
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Computer security, also known as cybersecurity or IT security, is the protection of information systems from theft or damage to the hardware, the software, and to the information on them, as well as from disruption or misdirection of the services they provide. It includes controlling physical access to the hardware, as well as protecting against harm that may come via network access, data and code injection, and due to malpractice by operators, whether intentional, accidental, or due to them being tricked into deviating from secure procedures.

What is the practice that includes controlling physical access to hardware?
Answer: Computer security
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In South Africa, charities issue a tax certificate when requested by donors which can be used as a tax deduction by the donor. Non Profit Organisations are registered under Companies and Intellectual Property Commission as Nonprofit Companies (NPCs) but may voluntarily register with The Nonprofit Companies Directorate. Trusts are registered by the Master of the High Court. Section 21 Companies are registered under the Company's Act. All are classified as Voluntary Organisations and all must be registered with the South Africa Revenue Services "SARS".[citation needed]

Who would a South Africian NPO register with if they were a voluntary organization?
Answer:
South Africa Revenue Services "SARS"