Because of the malleability of lead, these sheets can be shaped closely to awkward shapes, such as the junction of a sloping roof and a chimney, without the need for the sheet to be cut. Cuts in the sheet would create a potential leak site. Copper is also used for this purpose as it is also durable and malleable.
A number of factors increase the risk of developing grand mal seizures. Not all people with risk factors will get grand mal seizures. Risk factors for grand mal seizures include: 1  Family history of certain genetic conditions. 2  Family history of epilepsy. 3  Recent brain surgery. 4  Recent head injury. 5  Recent infection of the brain.
The patient experiencing a petit mal or absence seizure displays a sudden vacant look and usually stares straight ahead. This type of seizure often goes unnoticed by the patient or others. Dizziness and intense anxiety are not commonly associated with petit mal or absence seizures. Stiffening of the body is the tonic phase and is associated with a tonic-clonic seizure, not absence seizure.