Brain disorders can also have an effect on the display of delta waves. Parkinson's disease, schizophrenia, and narcolepsy are all characterized by changes in delta wave activity. Some drugs and chemicals have been shown to impact the brain's delta waves.
Pruning advanced ornamental trees. Now's the time... Generally speaking an ornamental tree is one that is grown for its decorative looks and not for food. Winter is the perfect time to prune deciduous ornamental trees, as their structures are dormant. Inside the tree though, important processes are underway.
This Week's Best Sellers. Ornamental trees are usually described as trees that are less than 25 feet tall. They usually have a defining feature such as flowers, unique foliage, notable bark, or a form of branching that is eye catching. Many ornamental trees are flowering and the time of flowering, mainly early spring, will draw attention to the landscape. Some trees have unique features that are notable in several seasons.