The abacus was a great invention in ancient China and has been called by some Western writers the earliest calculating machine in the world. The abacus has a long history behind it. It was already mentioned in a book of the Eastern Han Dynasty, namely Supplementary Notes on the Art of Figures written by Xu Yue about the year 190 A. D.
Subordination and Non Disturbance Agreements, commonly referred to as âSNDAs,â are typically an agreement between a tenant, a landlord and the landlordâs lender.
NAMENDA (memantine hydrochloride) is an orally active NMDA receptor antagonist. The chemical name for memantine hydrochloride is 1-amino-3,5-dimethyladamantane hydrochloride with the following structural formula: The molecular formula is C12H21Nâ¢HCl and the molecular weight is 215.76. Memantine HCl occurs as a fine white to off-white powder and is soluble in water. NAMENDA oral solution contains memantine hydrochloride in a strength equivalent to 2 mg of memantine hydrochloride in each mL.