Hurricanes also occur at least several degrees away from the equator. This is because the Coriolis force is too weak at the equator to generate spin for the hurricane to develop. North Atlantic Ocean Hurricane season: June 1 - November 30.ome hurricane formation basins are much more active than others. Some tropical cyclone basins also have conditions in which tropical cyclones may occur over longer periods during the year. Most tropical cyclones form from a disturbance in the monsoon trough.
ANUG is the acute presentation of necrotizing ulcerative gingivitis (NUG), which is the usual course the disease takes. If improperly treated or neglected, NUG may become chronic and/or recurrent.
A neg can be grainy and still be sharp, that is, in focus. Have a read of the section in Willi Beutler's Meine Dunklekammer Praxis on Sharpeness which in the first edition (~1960) starts on p.37. It is primarily image contrast that is responsible for good sharpness.