This type of coma is usually reversible once the blood sugar is corrected. Oxygen deprivation: Oxygen is essential for brain function. Cardiac arrest causes a sudden cutoff of blood flow and oxygen to the brain, called hypoxia or anoxia.
The external power supply is the AC power adapter that converts household AC electricity voltages to the much lower DC voltages needed to charge a mobile phone's internal battery.
Tidal Power: Pros & Cons. Consistent Power-Tides move constantly throughout the day, which provides a consistent stream of electricity generation capacity.Pollution-Free-By taking advantage of only the tide, tidal power creates no greenhouse gas emissions or water pollutants.fficient-Tidal Power converts roughly 80% of the kinetic energy into electricity, as opposed to coal and oil which convert only 30% of the energy held within.