Causes of Parkinson's disease. Parkinson's disease is caused by a loss of nerve cells in part of the brain called the substantia nigra. This leads to a reduction in a chemical called dopamine in the brain. Dopamine plays a vital role in regulating the movement of the body.
Overnight indexed swap. An overnight indexed swap (OIS) is an interest rate swap where the periodic floating payment is generally based on a return calculated from a daily compound interest investment. The reference for a daily compounded rate is an overnight rate (or overnight index rate) and the exact averaging formula depends on the type of such rate.
From Wikipedia, the free encyclopedia. An executive information system (EIS), also known as an executive support system (ESS) , is a type of management information system that facilitates and supports senior executive information and decision-making needs.t provides easy access to internal and external information relevant to organizational goals. It is commonly considered a specialized form of decision support system (DSS). EIS emphasizes graphical displays and easy-to-use user interfaces.