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.
Incredibly, the largest ships in the fleet â called baoshan, or treasure ships â were likely between 440 and 538 feet long by 210 feet wide. The 4-decked baoshan had an estimated displacement of 20-30,000 tons, roughly 1/3 to 1/2 the displacement of modern American aircraft carriers.