URL of this page: //medlineplus.gov/ency/article/000713.htm. A subdural hematoma is a collection of blood between the covering of the brain (dura) and the surface of the brain. A subdural hematoma is usually the result of a serious head injury. When it occurs this way, it is called an acute subdural hematoma. Acute subdural hematomas are among the deadliest of all head injuries. The bleeding fills the brain area very rapidly, compressing brain tissue.
Mitering Inside Corners. 1  1. Measure the angle of the corner. 2  2. Set a compound miter saw with the correct angles. 3  3. Cut the right inside corner.  4. Set the miter saw angle 1  again. 5. Cut the left inside corner.  6. Fit the two pieces together before nailing them in place.
Place the molding upside down on the miter table, with the ceiling edge against the table of the saw and the wall edge against the fence of the saw. Set the fence stops to hold it firmly in place.Set the miter angle to half of the angle you measured with the protractor. If it's 90 degrees, set the miter at 45 degrees.ail the molding to the wall and ceiling joists. Locate the joists with a stud finder, marking them with a pencil if necessary. Angle the 10-penny nails slightly to avoid splitting the molding as you drive them in. Tap again with a nail set to drive the head of the nail slightly below the surface of the molding.