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354 results on '"Nilima"'

30. A Colorimetric Distinct Color Change Cu(II) 4-{[1-(2,5-dihydroxyphenyl)ethylidene]amino}-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one Chemosensor and its Application as a Paper Test Kit

Author

Nilima Patil, Rajesh Dhake, Raju Phalak, Umesh Fegade, Chennan Ramalingan, Vadivel Saravanan, null Inamuddin, and Tariq Altalhi

Subjects
Clinical Psychology, Sociology and Political Science, Clinical Biochemistry, Law, Biochemistry, Spectroscopy, Social Sciences (miscellaneous)
Abstract

A “4-{[1-(2,5-dihydroxyphenyl)ethylidene]amino}-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one” chemosensor (C1) synthesized by Condensation reaction using “4-amino-1,2-dihydro-1,5-dimethyl-2-phenylpyrazol-3-one” and “2,5-dihydroxy Actophenone”. It shows absorption peak at 326 nm due to the C=C bond (π-π* transition), while the absorption peak at 364 nm is caused by the C=O bond (n-π* transition). In the presence of copper C1 only demonstrated a change in absorption peak to higher wavelength (redshift) from 364 to 425 nm. The hue of both the C1+Cu(II) complex changed from bright yellow to dark brown colour with hypochromic shift appearance of a new peak at 425 nm. Even in the presence of other competing metal ions, the hypsochromic shift of the absorption band and the quenching of the fluorescence emission intensity were different for detecting Cu2+, in CH3OH-H2O (v/v = 6:4). Job's plot was used to compute the binding stoichiometry between C1 and Cu2+, and MASS and FTIR spectrophotometry were used to investigate the complexation process. The capacity of the C1 to bind Cu2+ was further proven using DFT simulations. The complex S1+Cu2+ has a HOMO-LUMO energy gap of 2.8002 eV, which is lesser than S1 (2.9991 eV). From these results, it can be seen that the specific binding of S1 to Cu2+ improves the stability of the S1+Cu2+ complex and effectively reduces the HOMO-LUMO energy gap. The C1 was successfully used in a real-world water sample analysis. Using the Benesi-Hildebrand and Scatchard plots, the Kb was calculated and found to be 47340M-1 and 48369M-1 respectively, showing the creation of stable complexation between Cu2+ and S1 with 1:1 Stoichiometry. The LOD of S1 for Cu2+ ion analysis was determined to be 649 nM. Strip sheets were also built and tested to detect varying amounts of Cu2+ aqueous solution, and their color change suggested that they might be used for on-site Cu2+ detection in polluted water.

Published
2022

32. Salt stress in plants and amelioration strategies: alleviation of agriculture and livelihood risks after the Covid-19 pandemic

Author

Neha, Batra, Nilima, Kumari, and Vinay, Sharma

Subjects
Plant Science
Abstract

Agriculture sustains the livelihoods of over 2.5 billion people worldwide. The growing nature of disasters, the systemic nature of risk, a more recent pandemic along with abiotic stress factors are endangering our entire food system. In these stressful environment, it is widely reprimanded that strategies should be encompassed to attain increased crop yield and economic returns which would alleviate food and nutritional scarcity in developing countries. To study the physiological responses to salt stress

Published
2022

42. The affective-discursive ‘pruning’ of neoliberal selves: introducing the notion of self-othering

Author

Nilima Chowdhury

Subjects
Social Psychology, Applied Psychology
Abstract

In this article, I develop the notion of self-othering defined as the affective orchestration of different voices-of-the-self as an important self-constitutive practice of neoliberal subjectivity. I posit that neoliberal subjectification relies on othering those facets—skills, attributes, bodily properties—that do not conform to idealised notions of the self. By applying this conceptual lens to empirical material drawn from a qualitative research project on women’s identity negotiations, my aim is to show that affect, notably what feels right/wrong, plays a crucial role in aligning the body with neoliberal culture. The affective-discursive approach to analysing the dialogical self I propose is based on a problematisation of neoliberal logic and thus draws attention to the normativity of affect. The analysis of practices of self-othering lays bare how certain voices and ways of being become unsayable. However, their presence in people’s self-constructions also suggests that they could be re-articulated to formulate a counter ideal.

Published
2022

43. Mangroves in Gulf of Khambhat, Gujarat: a case study

Author

Khushbu Maurya, Seema Mahajan, Arun Annamalai, Nilima Rani Chaube, Deepak Patrevu, and Arundhati Misra

Subjects
General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology
Published
2022

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