Phospholipids form the basic structure of a cell membrane, called the lipid bilayer. Scattered in the lipid bilayer are cholesterol molecules, which help to keep the membrane fluid consistent. Membrane proteins are important for transporting substances across the cell membrane.
In other words, assistive technology is any object or system that increases or maintains the capabilities of people with disabilities, while adaptive technology is any object or system that is specifically designed for the purpose of increasing or maintaining the capabilities of people with disabilities..
Assistive Listening Devices. Assistive listening devices (ALDs) or assistive listening systems include a large variety of devices designed to help you hear sounds in everyday activities. ALDs are available in some public places such as auditoriums, movie theaters, houses of worship, and meeting rooms.