Ternary and quaternary metal chelates of some biologically important bivalent transition metal ions viz. Co(II), Ni(II), Cu(II) and Zn(II) formed with biologically significant ligands, viz. Asparagine (A) and Uracil (B) have been investigated. The relevant stability constants and complexation equilibria of quaternary metal chelates in solution at 30±1 oC and at constant ionic strength (I=0.1M N...

In this paper, we proposed a new number system for ALU. In binary number system carry is a major problem in arithmetical operation. We have to suffer O(n) carry propagation delay in n-bit binary operation. To overcome this problem signed digit is required for carry free arithmetical operation. Carry look ahead helps to improve the propagation delay to O(log n), but is bounded to a small number ...

the article analyzes literature problems using as a parameter the quaternary prevention concept, introducing guidelines to have good shared decisions that avoid overdiagnosis and overtreatment and improve the quality of life. the author proposes a four-step approach: reliable evidence, awareness about populations profile, independent research analysis, and an understandable format by ordinary p...

-In binary number system carry is a major problem in arithmetical operation. We have to suffer O(n) carry propagation delay in n-bit binary operation. To overcome this problem signed digit is required for carry free arithmetical operation. Further, literature reviews suggest that multi-valued logic (MVL) would be a better choice to address the problem of developing faster chips for performing f...

Nitrosamine formation has been associated with wastewater-impacted waters, but specific precursors within wastewater effluents have not been identified. Experiments indicated that nitrosamines form in low yields from quaternary amines, and that the nitrosamines form from the quaternary amines themselves, not just lower order amine impurities. Polymeric and benzylated quaternary amines were more...

There has been much research on codes over Z4, sometimes called quaternary codes, for over a decade. Yet, no database is available for best known quaternary codes. This work introduces a new database for quaternary codes. It also presents a new search algorithm called genetic code search (GCS), as well as new quaternary codes obtained by existing and new search methods.