Air Quality Index, Personality Traits and Their Impact on the Residential Satisfaction and Quality of Life: An Exploratory Path Analysis Model
Air quality index; personality traits; quality of life; residential satisfaction
The environment directly influences the behaviour, experiences, and also the well-being of people. It is not only the outside environment but the indoor environmental quality (IEQ) that also affects the well-being of its residents (Arif et al., 2016). The objective of the present study is to study the relationship between Air Quality Index (AQI), Personality traits, Residential Satisfaction, and quality of life among participants living in Bengaluru, Chennai, and Delhi NCR. A total of 685 residents aged 18-65, living in Bengaluru, Chennai, and Delhi NCR for over 2 years, who responded to the call for participation were selected for the study. Data was collected through online Google forms. Correlation and regression analysis were carried out to understand the strength and direction of the relationship between study variables. SPSS AMOS was used to estimate the measurement model and capture mediation paths. The results present an exploratory model which identifies air quality index and personality traits and their contribution towards the perceptions of residential satisfaction. The study also establishes a link between residential satisfaction and quality of life, the new ecological paradigm, and the dominant social paradigm. The present study highlights the necessity to adopt a pro-environmental approach to improve the quality of life. 2024 - IOS Press. All rights reserved.
Chukkali S.; Rastogi K.; Agrawal A.; Nayar S.; Raj P.
Asian Journal of Water, Environment and Pollution, Vol-21, No. 4, pp. 39-46.
https://doi.org/10.3233/AJW240044 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85199971229&doi=10.3233%2fAJW240044&partnerID=40&md5=cf3af017cbca8c745c716c6219f76738
Chukkali S., Department of Psychology, CHRIST (Deemed to be University), Delhi NCR, India; Rastogi K., Department of Psychology, CHRIST (Deemed to be University), Delhi NCR, India; Agrawal A., Department of Psychology, CHRIST (Deemed to be University), Delhi NCR, India; Nayar S., Department of Clinical Psychology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India; Raj P., Department of Psychology, Jyoti Nivas College Autonomous, Bengaluru, India
Unveiling the Necropolitics of Oil on Migrant Bodies in Deepak Unnikrishnans Birds
Energy Humanities; exploitation; Labour; Middle East; petro-capitalism
Oil played a significant role in fuelling the sociopolitical and economic development of Middle Eastern nations, attracting mass migration from South Asian nations. The article draws a nexus between the energy dynamics and labour exploitation within these petroleum-rich nations. It undertakes a close reading of the text Birds from Deepak Unnikrishnans novel Temporary People as it depicts the lives of migrant labourers who navigate an exploitative petro-capitalist system. The fictional text employs a narrative strategy juxtaposing elements of magic and realism, opening up a space for multilayered marginalised voices. The article engages with energy theories and interweaves Mbembes theory on necropolitics to grasp oils sovereign influence in delineating the boundaries between life and death in migrant lives. The surplus energy generated through fossil fuel extraction contributes to notions of boundless growth, coupled with technical and economic progress, which conceals the intensive manual labour underpinning these petrocultures. The magical property alluded to oil and the spectral absence of labour in the socio-cultural imagination co-constructs an exploitative and dehumanising labour regime for migrants. The migrant body is kept alive, and their existence is contingent upon the instrumental value of their labouring body, which constructs them as easily disposable and expendable as they are positioned outside the formal boundaries of citizenship. 2024 South Asian University.
Society and Culture in South Asia, Vol-10, No. 2, pp. 277-296.
Jose B., CHRIST (Deemed to Be University), Karnataka, Bangalore, India
Gas Kinematics and Dynamics of Carina Pillars: A Case Study of G287.76-0.87
We study the kinematics of a pillar, namely G287.76-0.87, using three rotational lines of 12CO(5-4), 12CO(8-7), 12CO(11-10), and a fine structure line of [O i] 63 ?m in southern Carina observed by SOFIA/GREAT. This pillar is irradiated by the associated massive star cluster Trumpler 16, which includes ? Carina. Our analysis shows that the relative velocity of the pillar with respect to this ionization source is small, ?1 km s?1, and the gas motion in the tail is more turbulent than in the head. We also performed analytical calculations to estimate the gas column density in local thermal equilibrium (LTE) conditions, which yields N CO as (?0.2-5) 1017 cm?2. We further constrain the gass physical properties in non-LTE conditions using RADEX. The non-LTE estimations result in n H 2 ? 10 5 cm ? 3 and N CO ? 1016 cm?2. We found that the thermal pressure within the G287.76-0.87 pillar is sufficiently high to make it stable for the surrounding hot gas and radiation feedback if the winds are not active. While they are active, stellar winds from the clustered stars sculpt the surrounding molecular cloud into pillars within the giant bubble around ? Carina. 2024. The Author(s). Published by the American Astronomical Society.
Tung N.-D.; Tram L.N.; Soam A.; Reach W.T.; Das E.; Chambers E.; Mathew B.; Richter H.
All Open Access; Gold Open Access; Green Open Access
https://doi.org/10.3847/1538-4357/ad3baa https://www.scopus.com/inward/record.uri?eid=2-s2.0-85198098012&doi=10.3847%2f1538-4357%2fad3baa&partnerID=40&md5=7e6d6ef22075324ec6b6f4f75373cd8b
Tung N.-D., University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Viet Nam, Universitde Strasbourg, CNRS, Observatoire astronomique de Strasbourg, UMR 7550, 11 rue de lUniversit Strasbourg, 67000, France, UniversitParis Cit UniversitParis-Saclay, CEA, CNRS, AIM, Gif-sur-Yvette, F-91191, France; Tram L.N., Max-Planck-Institut f Radioastronomie, Auf dem Hel 69, Bonn, 53-121, Germany; Soam A., Indian Institute of Astrophysics, II Block Koramangala, Bengaluru, 560034, India, SOFIA Science Center, Universities Space Research Association, NASA Ames Research Center, Moffett Field, 94035, CA, United States; Reach W.T., SOFIA Science Center, Universities Space Research Association, NASA Ames Research Center, Moffett Field, 94035, CA, United States, Space Science Institute, 4765 Walnut Street, STE B, Boulder, 80301, CO, United States; Das E., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bangalore, 560034, India; Chambers E., SOFIA Science Center, Universities Space Research Association, NASA Ames Research Center, Moffett Field, 94035, CA, United States, Space Science Institute, 4765 Walnut Street, STE B, Boulder, 80301, CO, United States; Mathew B., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bangalore, 560034, India; Richter H., German Aerospace Center (DLR), Institute of Optical Sensor Systems, Rutherfordstra 2, Berlin, 12489, Germany
Constraints on the Labour Market Trajectory of Youth and Growth of NEET in India
India; NEET population; unemployment; Youth
This paper explores the trends, composition, and determinants of the rising Not in Employment, Education and Training (NEET) population in India. Based on the national level employment-unemployment surveys and macro level panel data, and using instrumental variable (IV) Probit and system generalized method of moments (GMM) regression models, it is explored that a set of supply and demand side factors determining the growth of NEET population in India. At the micro level, the individuals level of general education, technical and vocational training, gender, occupation and gender of head of the family, religion, standard of living of the family, earnings of the spouse, and a set of complex socio-cultural factors determine the NEET status of educated and trained youth. On the other hand, the macro level factors, including the growth of mechanization in agriculture, stagnant real wages, sluggish non-farm sector output growth, infrastructural backwardness, and the existing social-cultural setup in which educated youth live together create a negative macro level environment that compels them to remain out of the workforce for a longer period even after completion of their education/training. Based on these results, it is argued that policies aiming at the development of infrastructure along with the promotion of industry and modern service sectors should be given the top priority for checking the upsurge in the NEET population in India. 2023 XLRI Jamshedpur, School of Business Management & Human Resources.
Management and Labour Studies, Vol-49, No. 3, pp. 477-503.
Parida J.K., School of Economics, University of Hyderabad, Hyderabad, Telangana, Gachibowli, India; Pattayat S.S., Department of Economics, Christ University (YPR), Nagasandra, Karnataka, Bangalore, India
Experimental investigation of a biomass-derived nanofluid with enhanced thermal conductivity as a green, sustainable heat-transfer medium and qualitative comparison via mathematical modelling
In this study, bio-based carbon nanospheres (CNSs) were synthesized from lignocellulosic-rich groundnut skin (Arachis hypogaea) and tested for their practical application in nanofluids (NFs) for enhanced heat transfer. The CNSs were characterized using various techniques, including FESEM, EDS, XRD, Raman spectroscopy, zeta potential analysis, and FTIR. Thermal conductivity (TC) and viscosity measurements were conducted using transient plane source (TPS) technique with a Hot Disk thermal analyser and discovery hybrid rheometer, respectively. The nanoparticles (NPs) were dispersed in two base fluids: ethylene glycol (EG) and a 60 : 40 mixture of deionized water (DI) and EG. Optimization studies were performed by varying the stirring and measurement times to improve TC values. The results showed that when a power source of 40 mW was applied at a high concentration of nanoparticles (i.e., 0.1 wt%), there was a 91.9% increment in thermal conductivity (TC) compared to the base fluid EG. DI-EG-based nanofluids (NFs) exhibited enhancements of up to 45% compared to the base fluid DI-EG (60 : 40), with a heating power of 80 mW and concentration of 0.1 wt%. These results demonstrated significant TC improvements with NP incorporation. Further experiments were performed by varying the temperature in the range of 30-80 C with readings taken for every 10 C increase, which showed a direct relation with the TC values. At 80 C, EG-based NFs showed increments of 77%, 111.49%, 139.67% and 175% at 0.01, 0.02, 0.05 and 0.1 wt% concentrations of NPs, respectively. It was also found that with the increase in the concentration of NPs, viscosity increased, whereas an increase in the temperature led to a decrease in viscosity. The CNS nanofluid exhibited a Newtonian behaviour with the nanoparticle concentration and temperature, resulting in an approximately 114% enhancement compared to the base fluid when the concentration of CNSs was 0.1 wt% at 30 C but decreased by up to 18% when the temperature was increased to 90 C. Using appropriate mathematical models for assessing thermophysical quantities, it was discovered that the model values and experimental values correspond reasonably well. Our method thus validates our experimental results and deepens the understanding of the mechanisms behind enhancing thermal conductivity in biomass-derived nanofluids. In summary, our work advances sustainable nanomaterial synthesis, providing a new solution for boosting thermal conductivity while maintaining environmental integrity, thereby inspiring further research and innovation in this field. 2024 RSC.
Bijapur K.; Mandal S.; Siddheshwar P.G.; Bose S.; Hegde G.
Nanoscale Advances, Vol-6, No. 19, pp. 4944-4955.
https://doi.org/10.1039/d4na00362d https://www.scopus.com/inward/record.uri?eid=2-s2.0-85201079006&doi=10.1039%2fd4na00362d&partnerID=40&md5=9e5622d93d0f1f82663060bc3da5970b
Bijapur K., Department of Chemistry, Christ University, Hosur Road, Bengaluru, 560029, India, Centre for Advanced Research and Development (CARD), Christ University, Hosur Road, Bengaluru, 560029, India; Mandal S., Department of Materials Engineering, Indian Institute of Science, Bengaluru, 560012, India; Siddheshwar P.G., Centre for Mathematical Needs, Department of Mathematics, Christ University, Hosur Road, Bengaluru, 560029, India; Bose S., Department of Materials Engineering, Indian Institute of Science, Bengaluru, 560012, India; Hegde G., Department of Chemistry, Christ University, Hosur Road, Bengaluru, 560029, India, Centre for Advanced Research and Development (CARD), Christ University, Hosur Road, Bengaluru, 560029, India
Idiosyncratic Deals: Understanding Effect of Intrinsic and Extrinsic Motivation I-Deals on Innovative Work Behaviour
Idiosyncratic Deals; India; Innovative Work Behaviour; Motivation; Women
I-deals or Idiosyncratic deals are specialised, adaptable work patterns by mutual agreement between employees and their managers to meet demands of a dynamic work place. Innovative work behaviour also known as IWB is referred to as the employee behaviour that intends to create and introduce novel and valuable products, processes, innovations and ways of working within a job-role or work-group of an organization. This research discovers the connection between various types of intrinsic and extrinsic motivational deals such as the work responsibility idiosyncratic deals, flexibility deals and financial ones and innovative behaviour, specially within the purview of the working women. It also provides an overview on the outcome of these deals on innovation at a workplace. Our study adopted descriptive research to assess the association of Idiosyncratic deals with IWB using a quantitative study across 352 female employees of Indian Corporate sector. It was found that there exists a direct and positive association amid intrinsically and extrinsically motivated Idiosyncratic deals and an innovative mind-set, in the context of Indian IT sector. This study establishes the influence of idiosyncratic deals and the motivational factors within them in driving an innovative mind set. Thus, the study helps to recognize the value that I-deals brings in establishing an effective innovative environment for employees playing a vital role in the growth of the organization. 2024, Iquz Galaxy Publisher. All rights reserved.
International Research Journal of Multidisciplinary Scope, Vol-5, No. 3, pp. 398-406.
https://doi.org/10.47857/irjms.2024.v05i03.0759 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85201820509&doi=10.47857%2firjms.2024.v05i03.0759&partnerID=40&md5=15ad73848d82c4019c630045a1238dbd
Menon V., School of Business and Management, Christ University, Bangalore, India; Chellasamy A., School of Business and Management, Christ University, Bangalore, India
Preparation and Electrochemical Investigation of NiO Hollow Sphere from Bio Waste (Sugarcane Bagasse) Extract for Energy Storage Applications
Carbon sphere; Electrochemical test; Hydrothermal method; NiO hollow sphere; Supercapacitor electrode
This work describes how to easily make NiO hollow sphere composites using waste sugarcane bagasse for use in supercapacitor applications. NiO hollow spheres (NOHSs) nanomaterialis effectively synthesized through the nano carbon sphere (CS) template. A core-shell structure was created on the carbon spheres surface by NiO nanoparticles that were several nanometers in size. The structural and morphological of the synthesized materials were investigated by X-ray diffraction (XRD) and Scanning electron microscope (SEM). The energy-dispersive X-ray spectroscopy (EDS) was used to confirm the presence of the elements in NOHS. The electrochemical behaviour of hierarchical CSs and NOHSs electrode was examined through cyclic voltammetry (CV), Galvanostatic charge/discharge (SC) and electrochemical impedance spectroscopy (EIS). In GCD analysis, NOHSs electrode showed a concentrated specific capacitance (Csp) of 913.79F/g at 5A/g current density. The porous conductive carbon with macro pores that speeds up the transit of electron and electrolyte ions causes noticeably better capacitive behavior. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.
Murugesan M.; Nagavenkatesh K.R.; Devendran P.; Nallamuthu N.; Kumar M.K.; Ramesh K.
Journal of Inorganic and Organometallic Polymers and Materials, Vol-34, No. 8, pp. 3707-3720.
Murugesan M., Department of Physics, Kalasalingam Academy of Research and Education, Tamilnadu, Krishnankoil, Virudhunagar, 626 126, India; Nagavenkatesh K.R., Department of Physics, Kalasalingam Academy of Research and Education, Tamilnadu, Krishnankoil, Virudhunagar, 626 126, India; Devendran P., Department of Physics, Kalasalingam Academy of Research and Education, Tamilnadu, Krishnankoil, Virudhunagar, 626 126, India; Nallamuthu N., Department of Physics, Dayananda Sagar Academy of Technology and Management, Karnataka, Udayapura, Bangalore, 560 082, India; Kumar M.K., Department of Physics, CHRIST (Deemed to be University), Bangalore, 560029, India; Ramesh K., Department of Physics, Indian Institute of Science, Bangalore, India
Enhancing the stability of DSSC by Co-activation of microwave synthesized TiO2 with biomass derived carbon dots
Carbon dots; Citrus medica; DSSC; Microwave synthesis; Natural dyes; Titanium dioxide
Dye-sensitized solar cells (DSSCs) that utilize natural dyes have garnered interest due to their low cost, eco-friendly manufacturing process, and competitive photovoltaic performance. However, their efficiency and stability issues have hindered their widespread implementation. To enhance their performance, this paper proposes a novel approach of modifying the photoanode with carbon dots (CDs) to align the band gap for easier carrier collection. The material properties were thoroughly characterized by examining their structural, morphological, optical, and electrical properties. In this study, titanium dioxide (TiO2) was synthesized using the microwave-assisted solvothermal method, while nitrogen-doped CDs derived from Citrus medica fruit juice were prepared using a simple hydrothermal treatment. Three sets of Natural Dye Sensitized Solar Cells (NDSSC) devices were created using co-activated photoanode (CD/TiO2) and unmodified photoanode (TiO2) with Platisol T/sp coated ITO serving as the counter electrode. Hibiscus (Hibiscus rosa-sinensis) and Onion (Allium cepa) peel extracts were utilized as sensitizers and Iodolyte HI-30 as the electrolyte. The most efficient device attained an efficiency of 3.5 % with Voc = 0.81 V and Jsc = 6.57 mA/cm2. This marks the highest efficiency reported using Hibiscus as a sensitizer with the current configuration, accompanied by prolonged device stability. This study showcases the potential of Citrus medica-derived nitrogen-doped CDs in achieving durable device stability. 2024 Elsevier B.V.
Ninan G.G.; Varghese M.; Balachandran M.
https://doi.org/10.1016/j.optmat.2024.115730 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85196788578&doi=10.1016%2fj.optmat.2024.115730&partnerID=40&md5=d465f59c00d1873db34095cb79befec4
Ninan G.G., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; Varghese M., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; Balachandran M., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India
Molecular Simulation Prediction on SO2 Gas Adsorption in Bipyridine Ligand-Based Square-Pillared MOFs
adsorption; DFT; flue gas; GCMC; SO2; square-pillared fluorinated MOFs, bipyridine ligand
Increasing concentrations of toxic gases caused by the burning of fossil fuels necessitates the development of efficient porous materials for gas capture. Metal-organic frameworks (MOFs) have attracted a lot of attention as potential porous materials due to their effectiveness in adsorption of toxic gases. In particular, square-pillared metal-organic frameworks stand out for their exceptional potential toward gas adsorption, attributed to their remarkable surface area, thermal and chemical stabilities, and tunable properties. In this context, molecular simulations have been executed to observe and analyze the adsorption process of toxic flue gases such as SO2 and CO2 on MOFs. The present work deals with two different stable fluorinated MOFs named [Ni(4,4?-bipyridine)2(AlF5)]n (ALFFIVE-Ni-bipy) and [Ni(4,4?-bipyridine)2(NbOF5)]n, (NBOFFIVE-Ni-bipy) featuring AlF52- and NbOF52- anion pillars, respectively, comprising 4,4?-bipyridine as organic ligand and nickel as the central metal. The significance of utilizing the 4,4?-bipyridine ligands in these fluorinated MOFs enhances the SO2 gas adsorption and selectivity in the framework. Density functional theory has been implemented for geometry optimization, and Grand Canonical Monte Carlo simulations have been performed to forecast the adsorption isotherms. Both ALFFIVE-Ni-bipy (11.4 mmol/g) and NBOFFIVE-Ni-bipy (8.7 mmol/g) showed high SO2 adsorption capacity at 1 bar pressure, but ALFFIVE-Ni-bipy showed very good adsorption than other square-pillared MOFs and also unveiled good selectivity of SO2 gas. The coadsorption of binary SO2/CO2 and ternary SO2/CO2/N2 gas mixtures at ambient conditions indicated that the cost-effective aluminum (Al)-based square-pillared ALFFIVE-Ni-bipy is particularly suitable for acid gas adsorption. 2024 American Chemical Society
Devaraj M.; Devi Kalathiparambil Rajendra Pai S.; Badawi M.; Pillai R.S.
ACS Applied Nano Materials, Vol-7, No. 14, pp. 16630-16638.
https://doi.org/10.1021/acsanm.4c02680 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85199181616&doi=10.1021%2facsanm.4c02680&partnerID=40&md5=05ac5bce989cafb76df2a89bb159c78f
Devaraj M., Department of Chemistry, Christ University, Karnataka, Bengaluru, 560029, India; Devi Kalathiparambil Rajendra Pai S., Department of Chemistry, Christ University, Karnataka, Bengaluru, 560029, India; Badawi M., Laboratoire Lorrain de Chimie Molulaire, UMR CNRS 7053, Universitde Lorraine, Nancy, 54000, France; Pillai R.S., Analytical and Spectroscopy Division, Vikram Sarabhai Space Center, Indian Space Research Organisation, Kerala, Thiruvananthapuram, 695022, India
Leadership Style and Work Engagement: A Comparison of Private and Public Sector Firms in India
India; Leadership Styles; Private Sector; Public Sector; Work Engagement
Post-privatization, public sector organizations were encouraged to borrow and learn from private sector firms. The popular belief was that the human resource practices followed by private sector organizations were far superior and more effective than those of the public sector organizations. However, this claim lacks empirical proof. This study adds to this body of knowledge by comparing the level of work engagement in private and public sector firms of India. Given that the leadership is crucial in setting the tone of an organization, the study also analyses the dominant leadership styles and their relationship to the levels of work engagement. The study is descriptive in nature and utilizes a structured questionnaire to collect data. Individuals currently employed in Indian public and private sector firms, in managerial roles, were invited to record their responses. The final sample consisted of 240 employees, with equal representation from both sectors. The collected data was then analysed using SPSS. The findings suggested that the dominant leadership styles were not significantly different in public and private sector organizations. Private sector employees were found to be more engaged and the leadership style appeared to be significantly related to the levels of engagement in public sector firms only. 2021 MDI.
Mathew J., School of Business and Management, CHRIST (Deemed to be University), Karnataka, Bangalore, India; Rajam K., School of Business and Management, CHRIST (Deemed to be University), Karnataka, Bangalore, India; Nair S., School of Business and Management, CHRIST (Deemed to be University), Karnataka, Bangalore, India
One-pot hydrothermal synthesis of MWCNTs/NiS/graphitic carbon nitride as next generation asymmetric supercapacitors
Cycling stability; Graphitic carbon nitride; Nickel sulfide; Supercapacitors; Sustainable energy
Fabricating new electrode materials with high capacitive properties is crucial in contemporary research. The construction of hybrid supercapacitors developed using transition metal-sulfides and carbonaceous materials provides significant surface area and distinctive charge storage characteristics. In the present work, NH2-multiwalled carbon nanotubes/NiS/g-C3N4 (MNG) hybrid was synthesized by a one-pot hydrothermal method, and pristine g-C3N4 using thermal method. The morphological studies of the hybrid materials show the presence of tube like MWCNTs, sphere-like NiS, and sheet like g-C3N4. The uniform distribution of all the components in the hybrid helps in exhibiting excellent electrochemical performances. The prepared electrode material shows a specific capacitance of 2432 F g?1 at a current density of 4 A g?1. Furthermore, following a series of 10,000 cycling tests, the hybrid ternary composite retains 98 % of its initial capacitance. An asymmetric coin cell of MNG//AC was fabricated with an exceptional energy density of 73.3 Wh kg?1 and a power density of 1599.2 W kg?1. This remarkable rate performance and cycle stability exhibited by the material indicate its potential as a highly efficient electrode material for supercapacitors. 2024 Elsevier B.V.
Baby A.; Vigneshwaran J.; Jose S.P.; P.B S.
Journal of Alloys and Compounds, Vol-992
https://doi.org/10.1016/j.jallcom.2024.174491 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85190861234&doi=10.1016%2fj.jallcom.2024.174491&partnerID=40&md5=63b6090ce1750993bbf8dddebfadf301
Baby A., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; Vigneshwaran J., Nano Laboratory, School of Physics, Madurai Kamaraj University, Madurai, 625021, India; Jose S.P., Nano Laboratory, School of Physics, Madurai Kamaraj University, Madurai, 625021, India; P.B S., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India
Psidium guajava-mediated green synthesis of Fe-doped ZnO and Co-doped ZnO nanoparticles: a comprehensive study on characterization and biological applications
Antibacterial activity; Anticancer activity; Green synthesis; Modified ZnO; Transition metal ions
The efficacy of nanoparticles (NPs) in healthcare applications hinges on their biocidal activity and biocompatibility. This research is dedicated to green-synthesized NPs with potent biocidal properties, aiming for high inhibition rates in bacterial infections and offering a multifunctional application, including potential use in anticancer therapy, in comparison to traditional antibiotics. The present study focuses on synthesis of zinc oxide (ZnO) nanoparticles (NPs), including iron-doped ZnO (GZF) and cobalt-doped ZnO (GZC), using the green co-precipitation method involving Psidium guajava (P. guajava) leaf extract. The physicochemical properties of the synthesized NPs were analyzed using various characterization techniques. The antibacterial and anticancer activity depends on the generation of reactive oxygen species (ROS), particle size, surface area, oxygen vacancy, Zn2+ release, and diffusion ability. The antibacterial activity of the synthesized NPs was tested against various Gram-positive (Streptococcus pneumoniae (S. pneumoniae), Bacillus subtilis (B. subtilis) and Gram-negative (Klebsiella pneumoniae (K. pneumoniae), and Pseudomonas aeruginosa (P. aeruginosa) bacterial strains. The zone of inhibition showed higher activity of GZC (1820mm) compared to GZF (1619mm) and GZO (1115mm) NPs. Moreover, anticancer studies against blood cancer cell line (MOLT-4) showed half-maximal inhibitory concentration of 11.3?g/mL for GZC compared to GZF and GZO NPs with 12.1?g/mL and 12.5?g/mL, respectively. Cytotoxicity assessments carried out on the fibroblast L929 cell line indicated that GZO, GZF, and GZC NPs demonstrated cell viabilities of 85.43%, 86.66%, and 88.14%, respectively. Thus, green-synthesized GZC NPs hold promise as multifunctional agents in the biomedical sector. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.
Boopathi T.S.; Suksom S.; Suriyaprakash J.; Hirad A.H.; Alarfaj A.A.; Thangavelu I.
Bioprocess and Biosystems Engineering, Vol-47, No. 8, pp. 1271-1291.
Springer Science and Business Media Deutschland GmbH
ISSN: 16157591; PubMed ID: 38573335; CODEN: BBEIB
Boopathi T.S., Department of Chemistry, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore, 641112, India, Functional Materials Laboratory, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, 641112, India; Suksom S., Department of Public Administration, Western University, Bangkok, Thailand; Suriyaprakash J., Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, China; Hirad A.H., Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia; Alarfaj A.A., Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia; Thangavelu I., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India
Pollution Haven Hypothesis and the Bilateral Trade Between India and China
bilateral trade; China; environmental policy stringency; India; pollution-intensive products; trade
The pollution haven hypothesis is studied from a bilateral trade perspective in this study, taking the reference of two Asian giants, namely, India and China. For this purpose, trade in pollution-intensive industries is analysed using data collected from the United Nations Comtrade dataset based on Standard Industrial Trade Classification codes for 19922019. The analysis helps us argue that between the two, China's demand is more pollution-intensive and India is the major supplier of pollution-intensive products. From an environmental perspective, this implies that China seems to be gaining from trade, and India is becoming a pollution haven in its trade with China. The Author(s) 2023.
Journal of Current Chinese Affairs, Vol-53, No. 2, pp. 277-302.
Bhat V., Christ Deemed to be University, Bangalore, India; Tantri M.L., CESP, ISEC, Bangalore, India
Enhancing Transparency and Trust in Agrifood Supply Chains through Novel Blockchain-based Architecture
Big data; Blockchain; Internet of Things; Monitoring; Security
At present, the world is witnessing a rapid change in all the fields of human civilization business interests and goals of all the sectors are changing very fast. Global changes are taking place quickly in all fields manufacturing, service, agriculture, and external sectors. There are plenty of hurdles in the emerging technologies in agriculture in the modern days. While adopting such technologies as transparency and trust issues among stakeholders, there arises a pressurized necessity on food suppliers because it has to create sustainable systems not only addressing demandsupply disparities but also ensuring food authenticity. Recent studies have attempted to explore the potential of technologies like blockchain and practices for smart and sustainable agriculture. Besides, this well-researched work investigates how a scientific cum technological blockchain architecture addresses supply chain challenges in Precision Agriculture to take up challenges related to transparency traceability, and security. A robust registration phase, efficient authentication mechanisms, and optimized data management strategies are the key components of the proposed architecture. Through secured key exchange mechanisms and encryption techniques, client's identities are verified with inevitable complexity. The confluence of IoT and blockchain technologies that set up modern farms amplify control within supply chain networks. The practical manifestation of the researchers' novel blockchain architecture that has been executed on the Hyperledger network, exposes a clear validation using corroboration of concept. Through exhaustive experimental analyses that encompass, transaction confirmation time and scalability metrics, the proposed architecture not only demonstrates efficiency but also underscores its usability to meet the demands of contemporary Precision Agriculture systems. However, the scholarly paper based upon a comprehensive overview resolves a solution as a fruitful and impactful contribution to blockchain applications in agriculture supply chains. Copyright 2024 KSII.
Sakthivel V.; Prakash P.; Lee J.-W.; Prabu P.
KSII Transactions on Internet and Information Systems, Vol-18, No. 7, pp. 1968-1985.
https://doi.org/10.3837/tiis.2024.07.013 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85200211134&doi=10.3837%2ftiis.2024.07.013&partnerID=40&md5=9723868808ce0a52a48db67170f79a21
Sakthivel V., School of Computer Science and Engineering, Vellore Institute of Technology, Chennai, India; Prakash P., School of Computer Science and Engineering, Vellore Institute of Technology, Chennai, India; Lee J.-W., Konkuk Aerospace Design-Airworthiness Institute, Konkuk University, Seoul, South Korea; Prabu P., Department of Computer Science, CHRIST (Deemed to be University), Bengaluru, India
Relationship between Digital Learning, Digital Literacy and Academic Performance of Higher Education Students: Moderated Mediation Role of Critical Thinking
Academic Performance; Critical Thinking; Digital Learning; Digital Literacy
In today's rapidly evolving educational landscape, digital technologies have become increasingly prevalent, transforming how students access and engage with information. This study explores the relationships among digital learning, digital literacy, and academic performance in higher education, focusing on the moderating and mediating role of critical thinking. The adoption of digital learning platforms, such as online courses and virtual classrooms, has expanded educational access and flexibility. However, concerns regarding their effectiveness persist. Digital literacy, encompassing the ability to navigate digital tools and critically evaluate information, is crucial in this context. This research investigates how students' digital literacy levels influence their academic achievement and examines the mediating role of critical thinking in this relationship. Critical thinking is hypothesized to mediate the effects of digital literacy on academic performance and the impact of digital learning on critical thinking skills. Additionally, the study assesses whether critical thinking moderates the prime relationship between digital learning and academic performance. This descriptive, cross-sectional study employs structured questionnaires to gather primary data from 384 students enrolled in undergraduate, postgraduate, professional, and research programs at private universities in Bangalore, India. The findings indicate that the academic program significantly influences students' perceptions of digital literacy, digital learning, critical thinking, and academic performance, while demographic factors do not. Digital learning alone has a slight negative effect on academic performance, but digital literacy acts as a positive mediator, mitigating this impact. However, critical thinking does not significantly moderate the relationship between digital learning and academic performance. 2024, Iquz Galaxy Publisher. All rights reserved.
Ravikumar T.; Raghunandan G.; John Benedict D.; Seshadri V.; Abhinandan N.
International Research Journal of Multidisciplinary Scope, Vol-5, No. 3, pp. 39-50.
https://doi.org/10.47857/irjms.2024.v05i03.01054 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85201710200&doi=10.47857%2firjms.2024.v05i03.01054&partnerID=40&md5=71f658e3ffe940247c5f03962e6cc33e
Ravikumar T., School of Business and Management, CHRIST (Deemed University), Karnataka, Bangalore, 560029, India; Raghunandan G., School of Commerce, Finance and Accountancy, CHRIST (Deemed University), CHRIST (Deemed University), Karnataka, Bangalore, 560029, India; John Benedict D., School of Commerce, Finance and Accountancy, CHRIST (Deemed University), CHRIST (Deemed University), Karnataka, Bangalore, 560029, India; Seshadri V., School of Business and Management, CHRIST (Deemed University), Karnataka, Bangalore, 560029, India; Abhinandan N., Maharani Lakshmi Ammani College for Women, Malleshwaram, Karnataka, India
Predicting nitrous oxide contaminants in Cauvery basin using region-based convolutional neural network
Cauvery river beds; Deep learning; Environmental management; Nitrous oxide; Region-based convolutional neural network (RCNN)
Nitrous oxide (N2O) in riverbeds affects hydrological processes by contributing to the greenhouse effect, indicating poor water quality, disrupting biogeochemical cycling, and linking to eutrophication. Elevated N2O levels signal environmental issues, impacting aquatic life and necessitating precise forecasting for effective environmental management and reduced greenhouse gas emissions. Precisely forecasting nitrous oxide (N2O) emissions from riverbeds is paramount for effective environmental management, given its significant potency as a greenhouse gas. This study focuses on the difficulties related to spatial feature extraction and modeling accuracy in predicting N2O in riverbeds in Tamil Nadu. To address the obstacles, the research suggests utilizing the Deep Learning Based Prediction of Nitrous Oxide Contaminants (DL-PNOC), which studies the N2O contaminants in water using Region-based Convolutional Neural Network (RCNN) for spatial feature extraction, to predict nitrous oxide contaminants. The study is centered on the Cauvery River Basin located in Tamil Nadu, where the emission of N2O is a matter of environment. The outcomes encompass the specialized N2O contaminant model for riverbeds and the implementation of RCNN achieves precise N2O forecasting. The DL-PNOC approach combines a contaminant model with RCNN deep learning techniques to capture spatial characteristics and predict N2O pollutants accurately. Furthermore, using the River Bed Dynamics Simulator reinforces the dependability of the findings. The DL-PNOC approach has exhibited encouraging results, as evidenced by the following metrics: a high IoU of 88.66%, precision of 88.96%, recall of 90.03%, F1 score of 89.22%, and low RMSE and MAE values of 9.14% and 7.59%, respectively. The findings highlight the efficacy of the DL-PNOC approach in precisely forecasting N2O pollutants in river sediments. 2024 Elsevier B.V.
Poluru R.K.; Sundararajan S.; S V.; Balakrishnan S.; V S.; Rajagopal M.
Groundwater for Sustainable Development, Vol-26
https://doi.org/10.1016/j.gsd.2024.101194 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85192501593&doi=10.1016%2fj.gsd.2024.101194&partnerID=40&md5=c44a3d358a2e75beaa4c0c8b3cd5eb50
Poluru R.K., Department of Information Technology, Institute of Aeronautical Engineering, Hyderabad, India; Sundararajan S., Business Management, Skyline University Nigeria, Kano State, Kano City, Nigeria; S V., Department of CSE, Rajalakshmi Engineering College, Chennai, India; Balakrishnan S., Department of Computer Science and Engineering, Aarupadai Veedu Institute of Technology, Vinayaka Mission's Research Foundation (Deemed to be University), Paiyanoor, Tamilnadu, Chennai, India; V S., Department of Computer Science, Periyar University, Salem, 11, India; Rajagopal M., Lean Operations and Systems, School of Business and Management, CHRIST (Deemed to be University), Bangalore, India
Efficient feature fusion model withmodified bidirectional LSTM for automatic Parkinson's disease classification
Enhanced sunflower optimisation; Gait recognition; GAIT-IT; GAIT-ITS; Improved convolutional neural network; Median filter; Modified bidirectional LSTM; Parkinsons disease
The majority of people affected by Parkinsons disease (PD) are middle-aged and older. The condition causes a variety of severe symptoms, including tremors, limited flexibility, and slow movements. As Parkinsons disease develops with changing symptoms and growing severity, the importance of computer-aided diagnosis based on algorithms cannot be highlighted. Gait recognition technology appears to be a potential path for Parkinson's disease identification since it captures unique properties of a persons walking pattern without requiring active participation, providing stability and non-intrusiveness. To begin,the median filter is used to remove noise from the input images received during data collection. This paper describes a new method for finding local and global features in gait images to assess the severity of Parkinsons disease.Local features are extracted using a stacked autoencoder, and global features are obtained using an Improved Convolutional Neural Network (ICNN). The Enhanced Sunflower Optimisation (ESO) technique is used to improve the CNN model's performance by optimizing hyperparameters such as batch size, learning rate, and number of convolutional layers. To classify PD severity, a modified bidirectional LSTM (MBi-LSTM) classifier receives input in the form of a combination of local and global features. The proposed model's performance is completely evaluated with the GAIT-IT and GAIT-IST datasets, which include key measures such as accuracy, precision, recall, and the F-measure. This study improves the diagnosis of Parkinsons disease by introducing a non-intrusive real-time monitoring system capable of early detection and prevention. Bharati Vidyapeeth's Institute of Computer Applications and Management 2024.
Reshma S.; Chennakesavulu M.; Patil S.S.; Lamani M.R.
International Journal of Information Technology (Singapore), Vol-16, No. 6, pp. 3963-3971.
Springer Science and Business Media B.V.
Reshma S., Dept of Artificial Intelligence and Machine Learning, Dayananda Sagar College of Engineering, Bangalore, India; Chennakesavulu M., Department of Electronics and Communication Engineering, Rajeev Gandhi Memorial College of Engineering and Technology (Autonomous), Andhra Pradesh, Nandyal, 518501, India; Patil S.S., Rajarambapu Institute of Technology, Rajaramnagar, Uran Islampur, India; Lamani M.R., CHRIST(Deemed to Be University), Kanmanike, Kumbalgudu, Mysore Road, Karnataka, Bangalore, 560074, India
Optimal design of controller for automatic voltage regulator performance enhancement: a survey
Automatic voltage regulator (AVR); Fraction order proportional integral derivative (FOPID) controller; Fuzzy logic controller; Intelligent controller; Nonlinear system; Optimization technique; Proportional integral derivative (PID) controller
For regulating the Synchronous Generator (SG) output voltage, the Automatic Voltage Regulator (AVR) system is a significant device. This work propounds a survey on Optimization Algorithms (OAs) utilized for tuning the controller parameters on the AVR system. A device wielded for adjusting the SGs Terminal Voltage (TV) is named AVR. A Controller is utilized for improving stability and getting a superior response by mitigating maximum Over Shoot (OS), reducing Rise Time (RT), reducing Settling Time (ST), and enhancing Steady State Error (SSE) since output voltage has a slower response and instability. The controllers utilized here are Proportional-Integral-Derivative (PID), Intelligent Controller (IC), along with Fraction Order PID (FOPID). Owing to the occurrence of time delays, nonlinear loads, variable operating points, and others, OAs are wielded for tuning the controller. (a) Particle Swarm Optimization (PSO), (b) Genetic Algorithm (GA), (c) Gray Wolf Optimizer (GWO), (d) Harmony Search Algorithm (HSA), (e) Artificial Bee Colony (ABC), (f) Teaching Learned Based Optimization (TLBO), et cetera are the various sorts of OA. For enhancing the TV response along with stability, various OAs were tried by researchers. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.
Electrical Engineering, Vol-106, No. 4, pp. 3705-3720.
Sivanandhan A., Department of Electronics and Communication Engineering, CHRIST [Deemed to be University], Bengaluru, India; Thriveni G., Department of Electronics and Communication Engineering, CHRIST [Deemed to be University], Bengaluru, India
Synthesis and Characterization of WO3 Nanostructures by the Solvothermal Method for Electrochromic Applications
annealing; electrochromism; FTO substrates; solvothermal process; WO3
In this study, a tungsten trioxide (WO3) thin film was deposited by direct current (DC) sputtering onto a fluorine-doped tin oxide (FTO) substrate as the seed layer at an oxygen partial pressure of 8 10?4mbar. A simple solvothermal method involving tungsten hexacarbonyl (W(CO)6), ethanol (C2H5OH), and hydrochloric acid (HCl) was used to synthesize vertically stacked nanoscale WO3 hierarchical structures on WO3 seed-layered FTO. After the deposition process, the FTO samples with nanostructures were subjected to annealing in air at 400C for 4 h. After annealing, the surface morphology, structural characteristics, and optical and electrochromic properties of the grown nanostructures were investigated using scanning electron microscopy (SEM), x-ray diffraction (XRD), Raman spectroscopy, UVvisible spectroscopy, and electrochemical analysis. From the XRD analysis, all the diffraction patterns were ascribed to a monoclinic phase. The SEM analysis showed that films grown with 5?L HCl had a nanoflower structure compared to the films grown with 0?L HCl and 20?L HCl. The nanoflower-structured films showed a higher cathodic peak current (?2.22mA), diffusion coefficient (5.43 10?9 cm2/s), and coloration efficiency (23.6 cm2/C). The increased electrochromic characteristics were attributed to the nanostructured films, which enhanced the diffusion of H+ ions by providing a large surface area during the charge transfer process. The Minerals, Metals & Materials Society 2024.
Kamath K.; Kumar K.N.; Reddy G.V.A.; Shaik H.; Prabhu S.G.; Jafri R.I.; Shetty H.D.; Manjunatha K.B.
Journal of Electronic Materials, Vol-53, No. 8, pp. 4564-4574.
Kamath K., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India, Department of Physics, Nitte Mahalinga Adyanthaya Memorial Institute of Technology, Nitte (Deemed to be University), Karkala, 574110, India; Kumar K.N., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India, Center for Nanomaterials and MEMS, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Reddy G.V.A., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Shaik H., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India, Center for Nanomaterials and MEMS, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Prabhu S.G., Department of Electronics and Communication Engineering, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Jafri R.I., Department of Physics and Electronics, Christ University, Hosur Road, Bengaluru, 560029, India; Shetty H.D., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Manjunatha K.B., Department of Physics, Nitte Mahalinga Adyanthaya Memorial Institute of Technology, Nitte (Deemed to be University), Karkala, 574110, India
Synthesis and electrochemical studies of 1,1-binaphthyl-2,2-diol for aqueous rechargeable lithium-ion battery applications
BINOL; CV; GCPL; Lithium-ion batteries; Organic electrode material; PEIS
The constant increase in the utilization of lithium-ion batteries (LIBs) in various field applications, including electrical vehicles and electronic devices, has led researchers to focus on their multiple path developments to obtain new electrode materials. The practical development of these electrode materials, based on organic and inorganic moieties, is challenging for various groups of LIB scientists. The concept of organic electrode materials is highly competitive with inorganic electrode materials because of the accessibility of more active sites with structural diversity, high energy and power density, environmental friendliness potential sustainability, and low cost. Herein, 1,1-binaphthyl-2,2-diol (BINOL) is investigated as an organic electrode material that contains two hydroxyl groups that act as active centers. The oxidative coupling process is employed to synthesize BINOL and so obtained product was characterized by using FT-IR, 1H-NMR and MASS techniques. The electrochemical investigations were carried out using sat. Li2SO4 electrolytic medium at three-electrode cell system. The Cyclic voltammetry (CV) has provided information on the anodic behavior of the material and its stability studied at different scan rates. The battery performance of the cell BINOL | Sat. Li2SO4 | LiMn2O4 by galvanostatic charge-discharge potential limit (GCPL) shows 197/171mAhg?1 specific capacity and 90% columbic efficiency. The electrochemical kinetic obtained by potentiostatic electrochemical impedance spectroscopy (PEIS) shows a semi-infinite diffusion process. 2024 Elsevier B.V.
C V M.; Shetty V.R.; Venkataramanappa Y.
https://doi.org/10.1016/j.synthmet.2024.117601 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85190608936&doi=10.1016%2fj.synthmet.2024.117601&partnerID=40&md5=e3244f6a15e67304acae0f4dfaeec16c
C V M., PG-Department of Chemistry and Research Centre, NMKRV College for Women, Jayanagar, Karnataka, Bangalore, 560011, India; Shetty V.R., Department of Chemistry, Christ University, Hosur Road, Karnataka, Bangalore, 560011, India; Venkataramanappa Y., PG-Department of Chemistry and Research Centre, NMKRV College for Women, Jayanagar, Karnataka, Bangalore, 560011, India