Deen Dayal Upadhyay Gorakhpur University

About: Deen Dayal Upadhyay Gorakhpur University is a education organization based out in Gorakhpur, Uttar Pradesh, India. It is known for research contribution in the topics: Thermal decomposition & Lymnaea acuminata. The organization has 1032 authors who have published 1591 publications receiving 21734 citations. The organization is also known as: Gorakhpur University.

Effect of plant extracts on the activity of three papaya viruses

Abstract: Crude leaf extract of Achyranthes aspera, Aloe barbadens, Capsicum frutescens and Carica papaya inhibit the activity of mild mosaic, distortion ringspot and ringspot viruses of papaya; Argemone mexicana and Carum copticum extracts inhibit the infectivity of DR and RS while Adenocalymna alliaceae is effective against MM only. Infectivity of all the three isolates was also inhibited by the seed extracts of Argemone mexicana, Datura fastuosa, Rhyncosia asnaris and Raphanus sativus. Seed extract of Rhyncosia asnaris which completely inhibited the infectivity of MM in vitro reduced its infectivity when sprayed on the leaves of host plants prior to inoculation or when applied as a soil drench. It was found to be stable against heat, dilution, ethyl alcohol and was partially dialysable. This seems to be of a complex nature having a protein and sugar as its components.

Computational Studies on Nitro Derivatives of 1-Hydroxy-1,2,4-triazole

Abstract: Thermodynamic properties and energetics of the nitro derivatives of 1-hydroxy-1,2,4-triazole, viz. 1-hydroxy-3-nitro-1,2,4-triazole (A), 1-hydroxy-5-nitro-1,2,4-triazole (B), and 1-hydroxy-3,5-dinitro-1,2,4-triazole (C), are considered for a detailed computational study during the present investigation using a density functional theory B3LYP/6-311G(d,p) method as implemented in the Gaussian 03 suite of programs. Heats of formation and other thermodynamic properties for all of the compounds considered were determined. Studies revealed that these compounds possess the requisite properties for use as high-density energetic materials. Detonation velocity (D) and detonation pressure (P) of the title compounds were evaluated using the Kamlet-Jacobs method based on the crystal densities calculated at the DFT(B3LYP)/6-311G(d,p) level incorporating the electrostatic interaction. Calculation showed that these compounds yielded a detonation pressure and detonation velocity in the range of 27–35 GPa and ∼8 km/s, resp...