Weather front areas of precipitation help determine the frontal type and location. There are two different meanings used within meteorology to describe weather around a frontal zone. The term "anafront" describes boundaries which show instability, meaning air rises rapidly along and over the boundary to cause significant weather changes. A "katafront" is weaker, bringing smaller changes in temperature and moisture, as well as limited rainfall. A cold front is located at the leading edge of the temperature drop off, which in an isotherm analysis shows up as the leading edge of the isotherm gradient, and it normally lies within a sharp surface
Methods used to study memory to have the participant learn a new set of associations with the cued items and study the amount of interference from prior association occurs. These experiments help to develop theories on how we learn associations and what conditions affect that learning. Free recall does not use item pairs. Instead participants study a list of items and then recall that list in the order that they retrieve the items from memory. In these experiments the data is drawn from the order in which items are recalled and the inter-response times. This data is used to develop models of memory storage and