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19 results on '"Prajapati, Preeti"'

7. Molecular Structure, Hydrogen Bonding Interactions and Docking Simulations of Nicotinamide (Monomeric and Trimeric Models) by Using Spectroscopy and Theoretical Approach.

Author

Verma, Priya, Srivastava, Anubha, Prajapati, Preeti, Tandon, Poonam, and Shimpi, Manishkumar R.

Subjects
MOLECULAR structure, ATOMS in molecules theory, NATURAL orbitals, HYDROGEN bonding interactions, SPECTROMETRY, NICOTINAMIDE, ELECTRIC potential, VIBRATIONAL spectra
Abstract

The present work focuses on the structural properties, spectroscopic signatures, intermolecular hydrogen bonding interactions, chemical and biological activity of nicotinamide (NIC) based on its monomeric and trimeric models using density functional theory and vibrational spectroscopy. FT-IR and FT-Raman spectra were obtained using the double-side forward-backward acquisition mode under vacuum. UV-Vis absorption spectra were recorded in methanol and compared with the calculated values. Geometry optimization and vibrational wavenumbers were obtained with the aid of Gaussian 09 program packages. The structural analysis of NIC revealed that the trimeric model was in better agreement with the experimental values than the monomer due to the incorporation of nearest hydrogen bond interactions. Spectroscopic results showed that NH2 and C = O groups of NIC were involved in intermolecular interactions in the trimeric model. The natural bond orbital (NBO) and quantum theory of atoms in molecules (QTAIM) analyses determined the presence, strength as well as nature of the hydrogen bonds were partially covalent. The lesser value of the HOMO-LUMO energy gap for the trimeric model indicated higher reactivity than monomer. Moreover, chemical reactivity was calculated using molecular electrostatic potential surface (MESP) and reactivity descriptors. The docking studies for NIC with several targets explored its biological activity. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Design of Digital-to-Analog Converter Using Dual Pair Differential Amplifier in 180 nm CMOS Technology

Author

Prajapati, Preeti, Sasamal, Trailokya Nath, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Ruediger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Martin, Ferran, Series Editor, Speidel, Joachim, Series Editor, Bera, Rabindranath, editor, Sarkar, Subir Kumar, editor, Singh, Om Prakash, editor, and Saikia, Hemanta, editor

Published
2019
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19. Level of anxiety related to English language among general nursing and midwives students

Author

Patel Dhara, K Deepak, Prajapati Preeti, and Saini Kajal

Subjects
Nursing, education, medicine, Anxiety, English language, Descriptive research, medicine.symptom, Psychology, Simple random sample, Intermediate level
Abstract

The present study was conducted to assess the level of anxiety related to English language among General Nursing & Midwives Students. A descriptive research design was adopted to assess the level of anxiety related to English language among General Nursing & Midwives Students in selected nursing schools. 40 students were selected by Simple Random sampling technique. The study revealed that the most of the students had intermediate level of anxiety.

Published
2014

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