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 between an individual and a financial institution like an insurance company where the individual provides a lump-sum payment to the insurer. In return, the insurer invests the money on a tax-deferred basis and gives it back to the policyholder in the form of regular guaranteed income.