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 Pertaining to the study of memory, areas of interest include the hippocampus, the rhinal cortex, the pre-frontal cortex, and the frontal cortex. The neurotoxic lesion technique uses neurotoxins such as ibotenic acid to selectively disrupt or kill specific neural tracts in any of the areas described above. The animal is anaesthetized and immobilized so that stereotaxic instruments can be used to drill holes in specific locations of the skull. Scientists can then carefully administer microinjections of neurotoxins to damage only the neurons in specific brain areas. This technique allows for the selective lesioning of areas of interest and leaves surrounding