Ventilators are typically used by ALS patients having difficulty breathing. There are several kinds of non-invasive ventilators, such as small devices that fit over the nose and mouth. Patients may also opt for a tracheostomy, a surgical procedure in which a tube is placed into the throat.
3. Counters. A counter is a digital sequential logic device that will go through a certain predefined states (for example counting up or down) based on the application of the input pulses. They are utilized in almost all computers and digital electronics systems [1].
Concrete Vanity Top. A DIY concrete countertop adds sleek and modern appeal to any bathroom design. To make the vanity top, pour the concrete to the actual size of the piece of furniture being used, making sure to leave holes for the plumbing to go through.