Attention deficit hyperactivity disorder has three subtypes, which vary by the presentation of symptoms. With predominantly inattentive ADHD, the patient has six or more symptoms that fall into the inattentive category.n particular, ADHD patients have variations on the transporter genes for these neurotransmitters. For example, patients with predominantly inattentive ADHD had changes to their norepinephrine transporter gene, which affects norepinephrine levels in their brains.
The Zumwalt class warships are the largest destroyer ever built. Actually in terms of size, displacement and armament these are closer to cruisers rather than destroyers. The Zumwalt class ships are even larger than Ticonderoga class cruisers. These new vessels sport cutting-edge technology and are stealthy to radars.
The Battle of Leyte gulf is also considered as the largest naval battle in history in terms of tonnage of ships sunk. The Allied forces lost 1 light carrier (USS Princeton, the largest American ship sunk during the battle), 2 escort carriers, 2 destroyers and 1 destroyer escort â a total of 37,000 tons of shipping.