A contraction stress test is a test performed during pregnancy to verify whether or not the unborn babyâs heart is strong enough to withstand labor. It uses drugs or nipple stimulation to make the uterus temporarily contract in order to replicate labor contractions.
Graphical user interface. A graphical user interface (or GUI, often pronounced gooey), is a particular case of user interface for interacting with a computer which employs graphical images and widgets in addition to text to represent the information and actions available to the user.
See Graphical user interface. Graphical user interfaces are instead made of not only text, but also images. The first computer to do this was the Apple Lisa (1983). The following operating systems can use graphical user interfaces: Microsoft Windows.