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.

Traditional, nutraceutical and pharmacological approaches of Tamarindus indica (Imli)

Abstract: Plants have provided a source of inspiration of novel drug compounds, as plant derived medicines have made large contributions to human health and well-being. An estimate of 75-90% of rural population of the world still relies on herbs for their healthcare. Ayurveda, supposed to be the oldest medical system in the world, provides potential leads to find active and therapeutically useful compounds from plants. Epidemiological studies have consistently demonstrated that consumption of plant- derived foods rich in bioactive phytochemicals have a protective effect against different aliments related to human health. Tamarindus indica is having numerous reported activities like antidiabetic, hypolipidemic, hepatoprotective, anti-ulcer, anti-inflammatory, analgesic, antivenom, antimicrobial, antihelmintic and molluscicidal properties. In spite of these medicinal values this plant is also consumed by rural people as vegetable. It also use as flavoring agent to impart flavor to various dishes and beverage. The present comprehensive review is therefore an effort to give detailed information about botanical description, phytochemical, traditional, nutraceutical and pharmacological approaches of Tamarindus indica. DOI: http://dx.doi.org/10.5281/zenodo.3344888

Design of the NnH3n+1+ series of “non-metallic” superalkali cations

Abstract: Species with a lower ionization energy than alkali atoms are referred to as superalkalis. Typical superalkalis include a central electronegative core with excess metal ligands. We propose a new series of “non-metallic” NnH3n+1+ superalkali cations based on the results of the MP2/6-311++G(d,p) computations. These cations are designed by successive replacement of H-ligands of ammonium cations (NH4+) by ammonium (NH4) moieties. The resulting NnH3n+1+ cations, which can be expressed in the form of [NH4⋯(n − 1)NH3]+ complexes, possess a number of unusual N–H⋯N type of partially covalent H-bonds, with the interaction energy in the range of 7.8–24.3 kcal mol−1. These cations are stable against loss of a proton (NnH3n + H+) and loss of ammonia [(n − 1)NH3 + NH4+]. The vertical electron attachment energies (EAvs) of NnH3n+1+ decrease monotonically from 4.39 eV for n = 1 to 2.39 eV for n = 5, which suggests their superalkali nature. This can be explained on the basis of electron localization on the core (central) N-atom (Qc), as the EAv correlates linearly with Qc. We have also demonstrated that this series may be continued to obtain new superalkali cations with even lower EAv, by exemplifying N9H28+ with an EAv of 1.84 eV. N9H28+ is stabilized by four partially covalent H-bonds (8.5 kcal mol−1 each) and four electrostatic H-bonds (0.4 kcal mol−1 each). This led to an exponential relation between EAv and n, which may provide an approximate EAv for any value of n in the NnH3n+1+ series.

GRB 140102A: insight into prompt spectral evolution and early optical afterglow emission

Abstract: Full list of authors: Gupta, Rahul; Oates, S. R.; Pandey, S. B.; Castro-Tirado, A. J.; Joshi, Jagdish C.; Hu, Y. -D; Valeev, A. F.; Zhang, B. B.; Zhang, Z.; Kumar, Amit; Aryan, A.; Lien, A ; Kumar, B.; Cui, Ch; Wang, Ch; Dimple; Bhattacharya, D.; Sonbas, E.; Bai, J.; Tello, J. C.; Gorosabel, J.; Castro Ceron, J. M.; Porto, J. R. F.; Misra, K.; De Pasquale, M.; Caballero-Garcia, M. D.; Jelinek, M.; Kubanek, P.; Minaev, P.; Cunniffe, R.; Sanchez-Ramirez, R.; Guziy, S.; Jeong, S.; Tiwari, S. N.; Razzaque, S.; Bhalerao, V.; Pintado, V. C.; Sokolov, V. V.; Zhao, X.; Fan, Y.; Xin, Y.