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.
board sheathing and a let-in corner brace. This type of construction was common In the past but for some years fell from popularity. However, the use of let-In corner bracing is again becoming more widespread where nonÂ­ structural insulation is being used for wall sheathing. Some building codes currently accept the let-In corner brace when nonstrucÂ­ tural sheathing is used in construction. But there have been few evaluations of wall panels with let-in corner bracing since the 1940âs when the performance standard was developed. There are no well-defined reÂ­ quirements for lumber quality or workmanship.