Showing papers by "Saurabh Srivastava published in 2015"

Jahn–Teller and coupled Jahn–Teller/Renner–Teller effects in the calculation of adiabatic-to-diabatic transformation angle for the lowest three 2A′ states of NH2 (NHH)

Abstract: We report here on the first study of topological effects for the NHH system, as carried out by treating simultaneously the two dominant effects of this system, namely, the Jahn–Teller (JT) effect and the Renner–Teller (RT) effect. Both the effects were treated rigorously as demanded by the Born–Oppenheimer approach. No approximations were made and in those cases where convergence was required, it was achieved by including the required number of states. The study concentrates on calculating the privileged adiabatic-to-diabatic transformation (ADT) angle γ12, along closed contours, which is the only needed angle to carry out the ADT in the case of relatively low energies. For this purpose, three coupled A′-states are usually considered and only in the last two extreme cases, where the area in configuration space becomes relatively large, namely 15–35 A2, we had also to include an A″ state (the second Δ-state), a situation that enforces the more elaborate (JT/RT) effect. In this paper, we also report on pote...

Method for biosynthesis of acetaminophen

Abstract: The present disclosure provides methods for biosynthesis of acetaminophen. The present disclosure provides host cells genetically modified to provide for production of acetaminophen. The present disclosure provides a recombinant host cell that is genetically modified with one or more heterologous nucleic acids comprising nucleotide sequences encoding 4-aminobenzoate hydroxylase (4ABH) and N-hydroxyarylamine O-acetyltransferase (NhoA). The present disclosure provides a recombinant prokaryotic host cell that is genetically modified with one or more heterologous nucleic acids comprising nucleotide sequences encoding 44ABH and NhoA.

An Architectural Roadmap Towards Building an Alarm Diffusion System

Abstract: Alarm Diffusion Systems(ADS) have complex, exacting and critical requirements. In this work we aim to provide a software architecture perspective towards ADS. We look at both functional and quality requirements for an ADS and also attempt to identify certain quality attributes specific to an ADS and attempted to provide a set of architectural tactics to realise them. We also propose a Reference Architecture for designing such systems. We have provided ample examples to support our inferences and take a deeper look at a case study of the Traffic Collision Avoidance System(TCAS) in aircrafts.