The lack of significant change on measures of comorbidity (BDI, HAM-A, and Rosenberg Self-Esteem Inventory) in meta-cognitive therapy may have been due to floor effects on these measures, as scores at baseline were, on average, not in the clinically significant range.
The life-cycle of a mid-latitude cyclone can be divided into 6 stages: Ã° stationary front, with opposing shear across the front. Ã° cyclone formation (cyclogenesis) begins as a cyclonic wave develops and amplifies. Ã° distinct poleward moving warm and equatorward moving cold fronts develop forming low pressure at apex.
The cold front travels faster than the warm front. Near the end of the storm's life the cold front catches up to the warm front causing a condition known as occlusion. Mid-latitude cyclones are the result of the dynamic interaction of warm tropical and cold polar air masses at the polar front.