Final answer:
The phrase 'Exposure factor is the expected percentage of loss that would occur from a particular attack' is true within the context of information security, not health sciences as outlined by the provided information.
Step-by-step explanation:
The statement "Exposure factor is the expected percentage of loss that would occur from a particular attack" refers to a concept in information security within the field of Computers and Technology. The exposure factor (EF) is indeed used to express the expected percentage of loss or damage that would result from a specific threat or attack. However, the given information touches upon a similar but different context, which is related to health and radiation exposure. In radiation protection and health studies, when the calculated value, in this case a factor, exceeds one, it indicates an increased risk of health events in the exposed population compared to the non-exposed one. Furthermore, specific factors related to types of radiation and tissue exposure are also mentioned, such as beta particles having a factor of 1 and alpha particles having a factor of 10 or 30 depending on the tissue type. The sievert (Sv) is a unit of measure used to convey the impact of different types of radiation exposure on the human body. In conclusion, while the use of exposure factors is relevant in both information security and health sciences, it's important not to confuse the distinct contexts in which they apply.