I have a tibial stress fracture from running and was told to use crutches for three weeks. In general, is this really necessary once the pain has subsided (as it has, in my case). Feels silly to use crutches when nothing hurts.
An artificial neuron network (ANN) is a computational model based on the structure and functions of biological neural networks. Information that flows through the network affects the structure of the ANN because a neural network changes - or learns, in a sense - based on that input and output. ANNs are considered nonlinear statistical data modeling tools where the complex relationships between inputs and outputs are modeled or patterns are found.
An annuity is a contract in which an insurance company makes a series of income payments at regular intervals in return for a premium or premiums you have paid. Annuities are often bought for future retirement income. Only an annuity can pay an income that can be guaranteed to last as long as you live.