Using DHCP to Assign IP Addresses to Devices - Overview of DHCP. 1  Open DHCP server: Click Start, point to Settings, click Control Panel, double-click Administrative Tools, and then double-click DHCP. 2  In the console tree, click the applicable DHCP server. 3  On the Action menu, click Set Predefined Options.
Brain ischemia. Brain ischemia (a.k.a. cerebral ischemia, cerebrovascular ischemia) is a condition in which there is insufficient blood flow to the brain to meet metabolic demand. This leads to poor oxygen supply or cerebral hypoxia and thus to the death of brain tissue or cerebral infarction / ischemic stroke.
Blood flow to the brain may be reduced when the heart rate or rhythm is abnormal (too slow or too fast) or when the heart cannot pump blood adequately because blood flow is blocked, for example, by narrowing of a valve. It could also be due to a heart attack. Fainting or loss of consciousness is a potentially serious situation and medical attention should be called for immediately. Dizziness, especially when standing up too quickly, is an extremely common symptom for people with heart failure.