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.
How & When to Trim Flowering Crab Trees. Crabapples are cherished for their delicate blooms. Flowering crabapple trees, genus Malus, are favorites for landscaping because of their intriguing natural shapes, flower color and bloom time. During the spring, most species and cultivars explode into bloom and the trees are covered in pink, white or red flowers. As they are spring bloomers, prune crabapples directly after flowering to reduce the risk of cutting off the developing buds.