The accounting income follows the historical cost principle and the matching principle, which is conducive to the objective reflection of the business management responsibility of the enterprise management authorities. But, due to the historical cost principle inherent defects, especially according to the present value of revenue and expenses by historical cost line, makes the calculation of accounting earnings lack of inner logical unity, and the matching principle is difficult to carry out, so that the book value of assets can not reflect its real value, cost cannot be fully compensated. And the economic benefit is measured in the current value, which reflects the actual value of the asset, which is beneficial to the full compensation of the cost. Barring the 2 common disciplines of Engineering and Medical, you will find there's not enough institutions in this country for many other science subjects like Microbiology, Bioinformatics, Biotechnology, Biophysics, Biochemistry and such other streams which need high research based study. Students are afraid to buy the highly interesting world of Neurological sciences as it is there's almost no authentic institute that could offer them a complete practical course on these after which eventually sought their career scope. Apart from Reliance and Biocon there is little or no other name which not simply gives admissions to eligible candidates such streams but in addition give them professional training and ultimately recruit them as unexperienced employees. In 1937, American economist Robert coase (R. H. Coase's publication of the essence of the enterprise is considered to be the beginning of a discussion on this issue. The rise of new tokens and funds The general function of deacetylation with the lysine residues is carried out by HDAC enzymes. Apart from this pair of HDACs there exists another enzyme which performs a similar function. The name with this enzyme is SIRT1 also it removes the acetyl group by way of a very unique mechanism. The end product of this enzyme mediated reaction is nicotinamide. Removal of acetyl group by HDACs doesn't involve NAD+ hydrolysis. Inhibitors like trichostatin A, which show specific action against HDACs don't have any action against SIRT1. The level of productivity of society determines the organizational form of social basic economic units. Enterprise is the result of the development of social productive forces to a certain level, which is the product of commodity production and exchange of goods.