How Does Perceived Risk and Trust Affect Mobile Banking Adoption? Empirical Evidence from India
subject: emerging technologies; mobile banking; perceived financial cost; perceived risk; perceived trust; technology adoption; UTAUT model
description: The emergence of high-speed internet (5G) services and the demonetization of the Indian currency by the Government of India in the year 2016 served as catalysts for the growth of banking services, such as internet/mobile banking. The main objective of the study was to investigate the role of perceived financial cost, perceived risk, and trust in the adoption of mobile banking services by users. The study extends the Unified Theory of Acceptance and Use of Technology (UTAUT) to explain the adoption of mobile banking services by young Indian customers. The data from 253 users of age between 1830 years were collected through a survey questionnaire and were analyzed using structural equation modeling with Amos 22.0. The results revealed that performance expectancy, effort expectancy, social influence, and perceived financial cost exhibited a significant positive influence on behavioral intentions. However, the facilitating conditions were found to exert no effect on actual use. In addition, the results demonstrate that both perceived risk and perceived trust moderate the relationship between behavioral intention and the actual use of mobile banking. The results of the study provide some novel insights into how perceived risk and perceived trust shape the interplay between behavioral intention and the actual use of mobile banking services. The inferences drawn from the study may enhance the understanding of the transformation of behavioral intention into the adoption and actual use of mobile banking services. 2023 by the authors.
creator: Kumar R.; Singh R.; Kumar K.; Khan S.; Corvello V.
source: Sustainability (Switzerland), Vol-15, No. 5
publisher: MDPI
date: 2023-01-01
rights: All Open Access; Gold Open Access
relation: ISSN: 20711050
format: Online
language: English
type: Article
coverage: Kumar R., School of Management Studies, Motilal Nehru National Institute of Technology, Prayagraj, 211004, India; Singh R., Institute of Business and Management, GLA University, Mathura, 281406, India; Kumar K., School of Business and Management, Christ University, Ghaziabad, 201003, India; Khan S., Institute of Business and Management, GLA University, Mathura, 281406, India; Corvello V., Department of Engineering, University of Messina, Contrada di Dio, Messina, 98122, Italy

Evaluation of potential larvicidal and pupicidal activity of Cassia fistula L. synthesized silver nanoparticles against Aedes aegypti
subject: Aedes aegypti; Cassia fistula; larvicidal; plant drugs; plant metabolites; pupicidal
description: Dengue Fever (DF) and Dengue Hemorrhagic Fever (DHF) are fatal and are spread primarily by Aedes aegypti. Control measures against vector causing disease have still not been well documented. The fatality of these diseases has alarmed a need for the development of promising methods to control A. aegypti. Nanotechnology offers the utilization of nanosized particles to target specific disease causing vectors such as mosquitoes. In the present study, an attempt was designed to synthesize silver nanoparticles from Cassia fistula leaf extract and to test its efficacy in vector control. The synthesized silver nanoparticles were sized in the range of 59-62 nm. The silver nanoparticles were tested for their capability in larvicidal and pupicidal activity against all the larval stages and pupal stages of A. aegypti. The LC50 values demonstrated the lethal effect of the nano material against all the stages of A. aegypti. The study draws attention towards the usage of plant parts in nano product synthesis that can act as a potential insecticide. 2023, Indian journals. All rights reserved.
creator: George J.A.; Rajendran R.; Anand A.; Paari K.A.
source: Medicinal Plants, Vol-15, No. 1, pp. 185-193.
publisher: Indian journals
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 9754261
format: Online
language: English
type: Article
coverage: George J.A., Department of Life Sciences, CHRIST University, Karnataka, Bangalore, 560029, India; Rajendran R., Department of Energy and Environmental Engineering, IICT, Hyderabad, 500007, India; Anand A., Department of Plant Science, Madurai Kamaraj University, Tamil Nadu, Madurai, 625021, India; Paari K.A., Department of Life Sciences, CHRIST University, Karnataka, Bangalore, 560029, India

Computational and experimental investigation on biological and photophysical properties of high yielded novel aryl-substituted pyrazolone analogue
subject: Antibacterial activity; Antioxidant study; In vitro antifungal activity; Photophysical studies; Pyrazolones
description: A series of new aryl-substituted pyrazolone derivatives 5(a-h) were synthesised via the Baylis-Hillman acetate reaction with pyrazolones and tested for antifungal, antibacterial, and antioxidant properties in vitro. Among the tested molecules 5d and 5e show good in vitro antifungal and antibacterial activities due to the presence of fluorine, which enhances the absorption rate by increasing lipid solubility and improves the pharmacological activity. It is also evident from the results obtained from structure-activity relationship (SAR) studies. Further, the photophysical properties of synthesized compounds were theoretically estimated using the ab-intio technique. The ground state optimization and HOMOLUMO energy levels are calculated using the DFT-B3LYP-6-311 basis set. Using the theoretically estimated HOMOLUMO value, global chemical reactivity descriptor parameters are estimated, and the result shows that compounds 5d and 5e have a higher electronegative and electrophilicity index than other molecules. Overall results suggest that, fluorine substituted pyrazolone derivatives show good photophysical, SAR, and biological properties. 2022 Elsevier B.V.
creator: Marrakkur V.; Sarojini B.K.; Madar M.; Dhanur S.-H.; Sridhara T.M.; Raj C.-G.-D.; Pavankumar H.; Savanur H.-M.; Shetty V.-R.; Naik L.
source: Journal of Molecular Structure, Vol-1276
publisher: Elsevier B.V.
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 222860; CODEN: JMOSB
format: Online
language: English
type: Article
coverage: Marrakkur V., Department of Chemistry, NMKRV College for Women, Bengaluru, 560063, India; Sarojini B.K., Department of Industrial Chemistry, Mangalore University, Mangalagangothri, Karnataka, 574199, India; Madar M., V.M.K.S.R. Vastrad Arts, Science and V.S. Bellihal Commerce College, Hungud, 587118, India; Dhanur S.-H., Department of physics, M S Ramaiah University of applied Science, Bangalore, 560054, India; Sridhara T.M., JSS Banashankari Arts and Commerce and S K Gubbi Science College, Karnataka, Vidyagiri, Dharwad, 580007, India; Raj C.-G.-D., Research Department of Chemistry, P.A College of Engineering, Nadupadavu, Karnataka, Mangalore, 574153, India; Pavankumar H., Department of Chemistry, P. C. Jabin Science College, Hubballi, 580004, India; Savanur H.-M., Department of Chemistry, P. C. Jabin Science College, Hubballi, 580004, India; Shetty V.-R., Department of Chemistry, NMKRV College for Women, Bengaluru, 560063, India; Naik L., Department of Physics and Electronics, CHRIST University, Bangalore, 560029, India

Rupturing Terracotta: Entangled Exchanges of the Hand and the Machine in South India
description: Through an examination of changing methods for making and using terracotta tile and brick this article explores the complex hybridity and productive tensions that emerged in the nineteenth century between indigenous and colonial systems of architecture and construction in South India. Outlining a general shift from handmade to mechanized processes, it further argues that a decolonial reading may provide a fruitful new approach to comprehending architectural history on the subcontinent. The article brings to the forefront how the indigenous-colonial encounter caused a rupture in the making of buildings that complicated the language and processes of architecture and construction in India forever. 2023, International Association for the Study of Traditional Environments (IASTE). All rights reserved.
creator: Joseph P.
source: Traditional Dwellings and Settlements Review, Vol-34, No. 2, pp. 23-37.
publisher: International Association for the Study of Traditional Environments (IASTE)
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 10502092
format: Online
language: English
type: Article
coverage: Joseph P., School of Architecture, Christ University, Bengaluru, India

Development and psychometric validation of the three dimensional grit scale
subject: Factor analysis; Grit; Reliability; Three dimensional grit scale; Validity
description: This manuscript reports the development and validation of the three-dimensional Grit Scale (3-D Grit Scale). The psychometric measure developed has three factors, Perseverance-Commitment (PC), Interest-Passion (IP), and Goal-directed Resilience (GR) through a series of five studies; study 1 (n = 409) for item analysis, study 2 (n = 334) for exploratory factor analysis, study 3 (n = 514) for confirmatory factor analysis and study 4 (n = 214) and 5 (n = 107) to assess the validity. The sample included students and working professionals aged between 18 and 25, residing in different parts of India. Exploratory and confirmatory factor analyses indicated that the scale excellently fits in the three-correlated factor model and the two-level hierarchical model indexing grit as a total of three first-order factors. The final 17-item 3-D Grit Scale showed adequate internal consistency (Cronbachs ? = 0.86), and split-half reliability (Spearman-brown = 0.80, Guttman = 0.80). Validation studies showed that the scores of the 3-D Grit Scale were moderately correlated with (a) 12 item grit scale (Duckworth et al., 2007) and the brief resilience scale (smith et al., 2008), indicating good concurrent and convergent validities (b) conscientiousness revealing that both the constructs are mutually exclusive. 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
creator: Kuruveettissery S.; Gupta S.; Rajan S.K.
source: Current Psychology, Vol-42, No. 7, pp. 5280-5289.
publisher: Springer
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 10461310
format: Online
language: English
type: Article
coverage: Kuruveettissery S., Department of Psychology, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Gupta S., Glasgow Caledonian University, Glasgow, United Kingdom; Rajan S.K., Department of Psychology, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India

Next-Generation Connectivity in A Heterogenous Railway World
description: Global System for Mobile communication - Railway (GSM-R) is widely used for operational communications between train and signaler. However, there is a need to define a successor that addresses: obsolescence, radio spectrum demand and the enabling of a range of emerging digital applications such as radio-based signaling and Automatic Train Control (ATC). Therefore, the International Union of Railways (UIC) started the initiative to develop the Future Railway Mobile Communication System (FRMCS). This article describes an Adaptable Communication System (ACS) that is being developed jointly by industry and railway operators as a possible successor covering all types of railways and all aspects of the FRMCS. A pragmatic approach is suggested that considers diverse railway settings and makes use of various radio access technologies. Countries, geographical regions and infrastructure managers differ concerning available radio technologies, but use of a suitable ACS could pave the way towards innovation in the railway sector. For this adaptive concept we discuss several network models and enhancements including satellite communications (SatCom), Software-Defined Networking (SDN) integration and antenna systems that support multiple bearers in one. For SatCom a software defined radio (SDR) prototype using random access is presented that is able to fulfill the requirements of ETCS. We found that SDN can be used for dynamically changing the access technology for critical and non-critical railway use cases. Furthermore, we present an antenna prototype that can be used for 5G, GSM, WLAN and LTE in parallel which saves limited mounting surface on the train. 1979-2012 IEEE.
creator: Allen B.; Barth B.; Grec M.; Erl S.; Geier U.; Keil K.; Kumar N.; Seetharamdoo D.; Zaballa E.O.
source: IEEE Communications Magazine, Vol-61, No. 4, pp. 34-40.
publisher: Institute of Electrical and Electronics Engineers Inc.
date: 2023-01-01
rights: All Open Access; Green Open Access
relation: ISSN: 1636804; CODEN: ICOMD
format: Online
language: English
type: Article
coverage: Allen B., Network Rail, United Kingdom, University of Surrey, United Kingdom; Barth B., German Aerospace Center (DLR), Germany; Grec M., German Aerospace Center (DLR), Germany; Erl S., German Aerospace Center (DLR), Germany; Geier U., Kontron, Austria; Keil K., Db Netz Ag and Neovendi GmbH, Germany; Kumar N., Railenium, France, Christ University, India; Seetharamdoo D., Railenium, France, University Gustave Eiffel, France; Zaballa E.O., Railenium, France, Technical University of Denmark, Denmark

Analytical study of BrinkmanBard convection in a bidisperse porous medium: Linear and weakly nonlinear study
subject: Bi-disperse porous medium; BrinkmanBard convection; LTNE; Mono-disperse porous medium; Rigidrigid boundaries
description: Linear and weakly nonlinear stability analyses of BrinkmanBard convection of a Newtonian fluid saturating a bidisperse porous medium (BDPM) are made. Local-thermal-non-equilibrium (LTNE) is assumed between the fluid and the porous spheres (micro-pores) that make up the macro porous medium. Two coupled linear momentum equations are considered one each for the macro- and micro-pores. Results of mono-disperse porous medium (MDPM) with solid spheres are recovered as a limiting case of the present study. Further, in the case of both types of porous media considered the results of DarcyBard and BrinkmanBard convection are extracted under suitable limiting procedures. To keep the work analytical, we reduce the intractable hexa-modal Lorenz model with four quadratic nonlinearities into the tractable mono-modal StuartLandau equation (SLE) with cubic and quintic nonlinearities. Subcritical instability is discounted in the study thereby suggesting that cubic SLE and cubicquintic SLE both expound similar results qualitatively. The concept of a BDPM is shown to be meaningful only when the pores are not large, and when they are very small, then the MDPM assumption applies. Similar observation can be made when the ratio of permeabilities is large. The presence of micro-pores does not alter the size of the convective cell significantly at the onset. The present study reiterates the findings of several earlier works. 2023 Elsevier Ltd
creator: Siddabasappa C.; Siddheshwar P.G.; Mallikarjunaiah S.M.
source: Thermal Science and Engineering Progress, Vol-39
publisher: Elsevier Ltd
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 24519049
format: Online
language: English
type: Article
coverage: Siddabasappa C., Department of Mathematics and Statistics, Texas A&M UniversityCorpus Christi, 6300 Ocean Drive, Corpus Christi, 78412, TX, United States, Department of Mathematics and Statistics, M. S. Ramaiah University of Applied Sciences, Bangalore, India; Siddheshwar P.G., Center for Mathematical Needs, Department of Mathematics, CHRIST (Deemed to be University), Bangalore, 560029, India; Mallikarjunaiah S.M., Department of Mathematics and Statistics, Texas A&M UniversityCorpus Christi, 6300 Ocean Drive, Corpus Christi, 78412, TX, United States

Gender gap in travel behaviour and public opinion on proposed policy measures: Evidence from India
description: Employing primary survey data collected from Jaipur city in India, this work attempts to evaluate inconsistencies in travel behaviour based on gender. It also intends to discuss the public opinion on a few proposed policy changes which can aid in bridging the established gender gap. Stratified random sampling approach is used to gather data on travel pattern measures and socioeconomic attributes. Descriptive statistics complemented with bivariate probit model and seemingly unrelated bivariate probit model is applied on the data acquired. The obtained results confirm the existence of a gender gap in all observed measures of travel behaviour. Compared to men, women travel shorter distances, use more of non-motorised modes of transport, have lower frequency of travelling, and travel majorly for purposes other than work. Results of the study also highlight how a majority of the respondents are in favour of policy changes aimed at narrowing the observed gender disparities. The analysis demands infrastructural development of non-motorised transportation and public transportation in the city in such a way which is both efficient and secured, so as to neither obstruct the objective of empowerment nor of sustainability. 2023 John Wiley & Sons Ltd.
creator: Saigal T.; Vaish A.K.; Rao N.V.M.
source: International Social Science Journal, Vol-73, No. 247, pp. 51-71.
publisher: John Wiley and Sons Inc
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 208701; CODEN: ISSJA
format: Online
language: English
type: Article
coverage: Saigal T., Christ University, Bannerghatta Road Campus, Bangalore, India; Vaish A.K., Department of Economics and Finance, Birla Institute of Technology and Science, Pilani Campus, Rajasthan, India; Rao N.V.M., Department of Economics and Finance, Birla Institute of Technology and Science, Pilani Campus, Rajasthan, India

Facile synthesis of Mn-Ni bimetal organic framework decorated with amine as an electrode for a high-performance supercapacitor
subject: Amine functionalization; Energy storage device; h2fipbb ligand; Metal organic framework; Supercapacitor
description: In the recent years, the whole world is looking for better energy storage devices. Supercapacitors are among the mostpromising high-capacity energy storage devices. Manganese-based material has gained more importance among transition metals due to its cost, easy fabrication, and wide potential applications. Here, we report the synthesis of a novel MOF using metal centers, dicarboxylate ligand, and aminoterephthalic acid as a co-ligand {Mn-Ni-NH2(h2fipbb)}MOF. The synthesized material has a unique hierarchical morphology consisting of manganese and nickel connected with NH2 through h2fipbb ligand linkage, which is highly efficient for the permeation of the electrolyte and electron transfer. The {Mn-Ni-NH2(h2fipbb)}MOF shows an excellent specific capacitance of 711.60 F g?1 using 2M KOH at a current density of 1 A g?1. The two electrode system material exhibitsa high-power and energy density of 743.99Wkg?1 and 20.49 Wh kg?1, respectively. From the above results, the synthesized {Mn-Ni-NH2(h2fipbb)}MOF can be considered a promising material for electrochemical energy storageapplications. 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
creator: Rajasekaran S.; Reghunath B.S.; K. R S.D.; Saravanakumar B.; JohnsonWilliam J.; Pinheiro D.; Arumugam M.K.
source: Journal of Solid State Electrochemistry, Vol-27, No. 4, pp. 911-925.
publisher: Springer Science and Business Media Deutschland GmbH
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 14328488
format: Online
language: English
type: Article
coverage: Rajasekaran S., Department of Chemistry, CHRIST (Deemed to Be University), Karnataka, Bengaluru, 560029, India; Reghunath B.S., Department of Chemistry, CHRIST (Deemed to Be University), Karnataka, Bengaluru, 560029, India; K. R S.D., Department of Chemistry, CHRIST (Deemed to Be University), Karnataka, Bengaluru, 560029, India; Saravanakumar B., Department of Physics, Dr. Mahalingam College of Engineering and Technology, Tamilnadu, Pollachi, 64200, India; JohnsonWilliam J., Department of Physics, Dr. Mahalingam College of Engineering and Technology, Tamilnadu, Pollachi, 64200, India; Pinheiro D., Department of Chemistry, CHRIST (Deemed to Be University), Karnataka, Bengaluru, 560029, India; Arumugam M.K., Cancer Biology Lab, Centre for Molecular and Nanomedical Sciences, Sathyabama Institute of Science and Technology, Tamil Nadu, Chennai, 600119, India

Supreme court dialogue classification using machine learning models
subject: Legal classification model; Logistic classifier; Machine learning; Natural language processing; Nae Bayes model
description: Legal classification models help lawyers identify the relevant documents required for a study. In this study, the focus is on sentence level classification. To be more precise, the work undertaken focuses on a conversation in the supreme court between the justice and other correspondents. In the study, both the nae Bayes classifier and logistic regression are used to classify conversations at the sentence level. The performance is measured with the help of the area under the curve score. The study found that the model that was trained on a specific case yielded better results than a model that was trained on a larger number of conversations. Case specificity is found to be more crucial in gaining better results from the classifier. 2023 Institute of Advanced Engineering and Science. All rights reserved.
creator: Joseph T.; Adiyillam V.
source: International Journal of Electrical and Computer Engineering, Vol-13, No. 2, pp. 2350-2355.
publisher: Institute of Advanced Engineering and Science
date: 2023-01-01
rights: All Open Access; Gold Open Access; Green Open Access
relation: ISSN: 20888708
format: Online
language: English
type: Article
coverage: Joseph T., Department of Computer Science, Christ (Deemed to be University), Bengaluru, India; Adiyillam V., Department of Computer Science, Christ (Deemed to be University), Bengaluru, India

Adsorptive removal of Cr (VI) using mesoporous iron-aluminum oxyhydroxide-polyvinyl alcohol self-supporting film: Kinetics, optimization studies and mechanism
subject: Bimetallic films; Cr (VI) removal; Heavy metal removal; Iron aluminum oxyhydroxide films
description: Over the past decades, the disposal of heavy metals like Cr(VI) from industries had an adverse effect on the environment, thus making it a topic of particular interest. In this context, mesoporous Aluminum oxyhydroxide-polyvinyl alcohol self-supporting films were synthesized, and different transition metals (V, Fe, Co, Ni and Cu) were incorporated by an eco-friendly route, and their adsorptive capacity towards Cr (VI) was studied. The composite mesoporous film with iron, aluminum oxyhydroxide and PVA was more efficient adsorbent than other transition metal incorporated aluminum oxyhydroxide films. The surface and chemical properties of the film were confirmed by pXRD, FTIR, Raman Spectra, BET-Surface area, BJH, SEM and Optical Profilometry. Furthermore, the effect of different parameters that impact the adsorption capacity towards Cr (VI) is discussed, including adsorbent load, contact time, solution pH, temperature, and initial concentration. A detailed investigation of the film before and after the adsorption of Cr (VI) using different characterization techniques is investigated in detail. The kinetic studies and adsorption isotherms are studied, and a suitable mechanism has been proposed for Cr (VI) removal. The synthesized films possess potential advantages like cost-effectiveness, eco-friendly nature, reusability, and higher removal efficiency towards the removal of Cr (VI) from an aqueous solution. 2023 Elsevier Ltd
creator: John B.C.; Viswambaram V.A.; Raj S.S.; Mankunipoyil S.A.
source: Materials Today Communications, Vol-34
publisher: Elsevier Ltd
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 23524928
format: Online
language: English
type: Article
coverage: John B.C., Department of Sciences and Humanities, CHRIST (Deemed to be University), Bangalore, 560074, India; Viswambaram V.A., Department of Sciences and Humanities, CHRIST (Deemed to be University), Bangalore, 560074, India; Raj S.S., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Mankunipoyil S.A., Department of Chemistry, RV College of Engineering, Bangalore, India

Gravity-modulated RayleighBard convection in a Newtonian liquid bounded by rigidfree boundaries: a comparative study with other boundary conditions
subject: Gravity modulation; Heat transport; RayleighBard convection; Rigidfree; StuartLaundau equation
description: Effect of different boundaries on the gravity-modulated RayleighBard convection has been investigated with an emphasis on rigidfree boundaries. Small-amplitude and large-amplitude modulations are studied using the linear stability analysis. The modified Venezian approach is used to study small-amplitude modulations using different modes of perturbations and the superposition principle. The existence of subharmonic motions for the case of large-amplitude modulations was explored using the Mathieu equation arising from the linear stability analysis. Floquet theory was used together with Hills infinite determinant method to compute the critical Rayleigh number for the case of large-amplitude modulations. Weakly non-linear analysis is performed leading to the cubic StuartLandau equation from the Lorenz system. Heat transport was quantified using the Nusselt number and the mean Nusselt numbers for different amplitudes and frequencies. It was found that gravity modulation has, in general, a stabilizing effect on the convection process in all three boundary types, and the heat transport was found to be an increasing function of amplitude. Another important outcome of the study is that the critical Rayleigh number for the onset of convection for rigidfree boundaries lies between those of the corresponding values of the freefree and rigidrigid boundaries in the case of both harmonic and subharmonic motions which could be exploited in controlling convection. 2023, The Author(s), under exclusive licence to Springer Nature B.V.
creator: Francis R.; Narayana M.; Siddheshwar P.G.
source: Journal of Engineering Mathematics, Vol-139, No. 1
publisher: Springer Science and Business Media B.V.
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 220833
format: Online
language: English
type: Article
coverage: Francis R., Department of Mathematics, The University of the West Indies, Mona Campus, Kingston 7, St. Andrew, State, Kingston, Jamaica; Narayana M., Department of Mathematics, The University of the West Indies, Mona Campus, Kingston 7, St. Andrew, State, Kingston, Jamaica; Siddheshwar P.G., Centre for Mathematical Needs, Department of Mathematics, CHRIST(Deemed to be University), Hosur Road, Karnataka, Bengaluru, 560029, India

A concise route to fused tetrazolo scaffolds through 10-camphor sulfonic acid auto-tandem homogeneous catalysis and mechanistic investigation
subject: 10-CSA; Aminotetrazole; Auto-tandem reactions; Bronsted acid; DFT; Tetrazolo pyrimidine; Tetrazolo quinazoline
description: 10-Camphor sulfonic acid (10-CSA) as an organo-catalyst has gained interest due to its versatile solubility and easiness of handling. This work reports a simple synthetic method through non-classical Biginelli for the construction of tetrazolo pyrimidine (4a-m) and quinazolines (4a?-o?). Azolopyrimidines and quinazolines are of great pharmaceutical importance. Numerous compounds are currently in use for the treatment of different diseases. Therefore their synthesis is industrially inevitable. Employing aldehydes, 1,3-dicarbonyls, and 5-Aminotetrazole, we report eco-friendly, cost-effective catalysis through a tandem reaction catalyzed by the 10-CSA that gave excellent yields, 7095 % for tetrazolo quinazoline and 4576 % tetrazolo pyrimidines respectively. The homonuclear NOESY analysis confirms the selective formation of one isomer. All the compounds are characterised by 1H NMR, 13C NMR, and MS. Investigation of the reaction mechanism by both experimental and theoretical studies provides evidence. Mechanism of the reaction was also explained utilizing the information from mass spectrometry monitoring. DFT calculation carried out at PBEPBE (Perdew-Burke-Ernzerhof) functional and 6-31G (d,p) basis set level of theory of the various intermediates observed supports the experimental evidence. 2023 Elsevier B.V.
creator: Devasia J.; Nizam A.; Muthukumar D.; Pillai R.S.; Joy F.
source: Journal of Molecular Liquids, Vol-376
publisher: Elsevier B.V.
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 1677322; CODEN: JMLID
format: Online
language: English
type: Article
coverage: Devasia J., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Nizam A., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Muthukumar D., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Pillai R.S., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Joy F., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India

A brief review of portfolio optimization techniques
subject: Deep learning; Evolutionary techniques; Machine learning; Portfolio optimization; Quantum computing; Reinforcement learning; Statistical measures
description: Portfolio optimization has always been a challenging proposition in finance and management. Portfolio optimization facilitates in selection of portfolios in a volatile market situation. In this paper, different classical, statistical and intelligent approaches employed for portfolio optimization and management are reviewed. A brief study is performed to understand why portfolio is important for any organization and how recent advances in machine learning and artificial intelligence can help portfolio managers to take right decisions regarding allotment of portfolios. A comparative study of different techniques, first of its kind, is presented in this paper. An effort is also made to compile classical, intelligent, and quantum-inspired techniques that can be employed in portfolio optimization. 2022, The Author(s), under exclusive licence to Springer Nature B.V.
creator: Gunjan A.; Bhattacharyya S.
source: Artificial Intelligence Review, Vol-56, No. 5, pp. 3847-3886.
publisher: Springer Nature
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 2692821; CODEN: AIRVE
format: Online
language: English
type: Article
coverage: Gunjan A., Christ Deemed to be University, Bangalore, India; Bhattacharyya S., Rajnagar Mahavidyalaya, Birbhum, India

The role of classroom engagement on academic grit, intolerance to uncertainty and well-being among school students during the second wave of the COVID-19 pandemic in India
subject: academic grit; India; intolerance to uncertainty; mediation; pandemic; student engagement; well-being
description: The forced changes and disruptions in educational systems and learning experiences due to the pandemic has impacted students' mental health and well-being. The present study aims to understand the effects of the determinants of well-being on students in India during the second wave (April to August 2021) of the COVID-19 pandemic. The determinants of well-being in this study areacademic grit, intolerance to uncertainty and students' engagement in an online learning environment. In this study, well-being is characterized as students' confidence and satisfaction in an online learning and pandemic environment. The data collected from 1174 students (1219 years) from various states, using standardized tools, were analyzed to find out about the mediating effect of students' engagement on the relationship between academic grit and well-being, and between intolerance to uncertainty and well-being. Further, the model fit analysis of the determinants of well-being is explored.The paper reports that students' classroom engagement does mediate in the path of academic grit and well-being, and in the path of intolerance to uncertainty and well-being. It also evidence the model fit of the influence of the determinants of well-being on that of school students during the second wave of the COVID-19 pandemic. The study also draws implications and suggestions for educators using the current model of students' well-being. 2022 Wiley Periodicals LLC.
creator: Kareem J.; Thomas S.; Kumar P. A.; Neelakantan M.
source: Psychology in the Schools, Vol-60, No. 5, pp. 1594-1608.
publisher: John Wiley and Sons Inc
date: 2023-01-01
rights: All Open Access; Bronze Open Access; Green Open Access
relation: ISSN: 333085
format: Online
language: English
type: Article
coverage: Kareem J., School of Education, Christ University, Bangalore, India; Thomas S., Department of Psychology, Christ University, Bangalore, India; Kumar P. A., Department of Psychology, Christ University, Bangalore, India; Neelakantan M., Department of Psychology, Christ University, Bangalore, India

Growth trajectories for executive and social cognitive abilities in an Indian population sample: Impact of demographic and psychosocial determinants
subject: Cognitive development; Emotion recognition; Executive functions; Growth trajectory; Quantile regression; Social cognition
description: Cognitive abilities are markers of brain development and psychopathology. Abilities, across executive, and social domains need better characterization over development, including factors that influence developmental change. This study is based on the cVEDA [Consortium on Vulnerability to Externalizing Disorders and Addictions] study, an Indian population based developmental cohort. Verbal working memory, visuo-spatial working memory, response inhibition, set-shifting, and social cognition (faux pas recognition and emotion recognition) were cross-sectionally assessed in > 8000 individuals over the ages 623 years. There was adequate representation across sex, urban-rural background, psychosocial risk (psychopathology, childhood adversity and wealth index, i.e. socio-economic status). Quantile regression was used to model developmental change. Age-based trajectories were generated, along with examination of the impact of determinants (sex, childhood adversity, and wealth index). Development in both executive and social cognitive abilities continued into adulthood. Maturation and stabilization occurred in increasing order of complexity, from working memory to inhibitory control to cognitive flexibility. Age related change was more pronounced for low quantiles in response inhibition (??4 versus =2 for higher quantiles), but for higher quantiles in set-shifting (? > ?1 versus ?0.25 for lower quantiles). Wealth index had the largest influence on developmental change across cognitive abilities. Sex differences were prominent in response inhibition, set-shifting and emotion recognition. Childhood adversity had a negative influence on cognitive development. These findings add to the limited literature on patterns and determinants of cognitive development. They have implications for understanding developmental vulnerabilities in young persons, and the need for providing conducive socio-economic environments. 2023 Elsevier B.V.
creator: Sharma E.; Ravi G.S.; Kumar K.; Thennarasu K.; Heron J.; Hickman M.; Vaidya N.; Holla B.; Rangaswamy M.; Mehta U.M.; Krishna M.; Chakrabarti A.; Basu D.; Nanjayya S.B.; Singh R.L.; Lourembam R.; Kumaran K.; Kuriyan R.; Kurpad S.S.; Kartik K.; Kalyanram K.; Desrivieres S.; Barker G.; Orfanos D.P.; Toledano M.; Purushottam M.; Bharath R.D.; Murthy P.; Jain S.; Schumann G.; Benegal V.
source: Asian Journal of Psychiatry, Vol-82
publisher: Elsevier B.V.
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 18762018; PubMed ID: 36736106
format: Online
language: English
type: Article
coverage: Sharma E., Department of Child and Adolescent Psychiatry, National Institute of Mental Health and Neurosciences, Bengaluru, India; Ravi G.S., Department of Health Data Science, University of Liverpool, United Kingdom; Kumar K., Department of Mental Health and Clinical Psychology, National Institute of Mental Health and Neurosciences, Bengaluru, India; Thennarasu K., Department of Biostatistics, National Institute of Mental Health and Neurosciences, Bengaluru, India; Heron J., Population Health Sciences, Bristol Medical School, University of Bristol, United Kingdom; Hickman M., Population Health Sciences, Bristol Medical School, University of Bristol, United Kingdom; Vaidya N., PONS Centre, CharitMental Health, Department of Psychiatry and Psychotherapy, CharitUniversitsmedizin Berlin, Germany; Holla B., Department of Integrative Medicine, National Institute of Mental Health and Neurosciences, Bengaluru, India; Rangaswamy M., Department of Psychology, CHRIST (Deemed to be University), Bengaluru, India; Mehta U.M., Department of Psychiatry, National Institute of Mental Health & Neurosciences, Bangalore, India; Krishna M., Foundation for Research and Advocacy in Mental Health, Mysuru, India; Chakrabarti A., ICMR-Centre on Non-Communicable Diseases, Kolkata, India; Basu D., Department of Psychiatry, Post Graduate Institute of Medical Education and Research, Chandigarh, India; Nanjayya S.B., Department of Psychiatry, Post Graduate Institute of Medical Education and Research, Chandigarh, India; Singh R.L., Department of Psychiatry, Regional Institute of Medical Sciences, Imphal, India; Lourembam R., Department of Psychology, Regional Institute of Medical Sciences, Imphal, India; Kumaran K., MRC Lifecourse Epidemiology Unit, University of Southampton, United Kingdom & Epidemiology Research Unit, CSI Holdsworth Memorial Hospital, Mysuru, India; Kuriyan R., Division of Nutrition, St John's Research Institute, Bengaluru, India; Kurpad S.S., Department of Psychiatry & Departme…

Heterojunction engineered MWCNT/Ag3PO4 via organic acid and its natural light-assisted photocatalytic efficiency
subject: Ag3PO4; Density functional theory; Heterojunction engineering; MWCNT; Photocatalysis
description: Compositing photoactive, but unstable semiconductors with low dimensional carbon-based materials and modulating the hetero junction between them can assure more efficient and stable systems for the remediation of severe pollutants. The current study has given emphasis to understand the role of sulfonic acid in making a compact heterojunction between AP and MWCNTs, considering the effective delocalization of carriers and the direct relationship with the photoactivity. The significant reduction in the band gap of AP from 2.320 to 2.0516ev after the introduction of MWCNTs unmistakably confirmed the compatibility between the composite moieties. The intensity of the photoluminescence peak observed at an emission wavelength of 350nm for pure AP was found to be minimized in the composite, which confirms the effective charge delocalization from AP to the conductive MWCNTs. The closest bond distance was observed in the range of 2.3 to 2.5between an O atom of Ag3PO4 and a C atom of CNT, which explains the tight contact between the species. The photoactivity studies unambiguously confirmed the potential of the organic acid at the composite interface as it could accomplish 99% dye degradation within a span of 8min, whilst the system without the organic acid exhibited complete degradation within a span of 60min. The p-XRD analysis of the catalyst recovered from the reaction mixture revealed its high stability. 2023 Elsevier B.V.
creator: Veigas L.M.; Chandran N.; Krishna B.M.; KR S.D.; Mohan M.K.
source: Nano-Structures and Nano-Objects, Vol-34
publisher: Elsevier B.V.
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 2352507X
format: Online
language: English
type: Article
coverage: Veigas L.M., Department of Sciences and Humanities, School of Engineering and Technology, CHRIST (Deemed to be University), Mysore Road, Karnataka, Bengaluru, 560074, India; Chandran N., Govt. Engineering College, Kerala, Idukki, India; Krishna B.M., Department of Chemistry, CMS College, Kerala, Kottayam, India, Khalifa University, Abu Dhabi, United Arab Emirates; KR S.D., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; Mohan M.K., Department of Sciences and Humanities, School of Engineering and Technology, CHRIST (Deemed to be University), Mysore Road, Karnataka, Bengaluru, 560074, India

Bioengineering of biowaste to recover bioproducts and bioenergy: A circular economy approach towards sustainable zero-waste environment
subject: Biowaste to energy nexus; Development of bioreactors; Microbial fuel cells; Potential microbes
description: The inevitable need for waste valorisation and management has revolutionized the way in which the waste is visualised as a potential biorefinery for various product development rather than offensive trash. Biowaste has emerged as a potential feedstock to produce several value-added products. Bioenergy generation is one of the potential applications originating from the valorisation of biowaste. Bioenergy production requires analysis and optimization of various parameters such as biowaste composition and conversion potential to develop innovative and sustainable technologies for most effective utilization of biowaste with enhanced bioenergy production. In this context, feedstocks, such as food, agriculture, beverage, and municipal solid waste act as promising resources to produce renewable energy. Similarly, the concept of microbial fuel cells employing biowaste has clearly gained research focus in the past few decades. Despite of these potential benefits, the area of bioenergy generation still is in infancy and requires more interdisciplinary research to be sustainable alternatives. This review is aimed at analysing the bioconversion potential of biowaste to renewable energy. The possibility of valorising underutilized biowaste substrates is elaborately presented. In addition, the application and efficiency of microbial fuel cells in utilizing biowaste are described in detail taking into consideration of its great scope. Furthermore, the review addresses the significance bioreactor development for energy production along with major challenges and future prospects in bioenergy production. Based on this review it can be concluded that bioenergy production utilizing biowaste can clearly open new avenues in the field of waste valorisation and energy research. Systematic and strategic developments considering the techno economic feasibilities of this excellent energy generation process will make them a true sustainable alternative for conventional energy sources. 2023 El…
creator: Kumar V.; Vangnai A.S.; Sharma N.; Kaur K.; Chakraborty P.; Umesh M.; Singhal B.; Utreja D.; Carrasco E.U.; Andler R.; Awasthi M.K.; Taherzadeh M.J.
source: Chemosphere, Vol-319
publisher: Elsevier Ltd
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 456535; PubMed ID: 36731660; CODEN: CMSHA
format: Online
language: English
type: Article
coverage: Kumar V., Ecotoxicity and Bioconversion Laboratory, Department of Community Medicine, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai, 602105, India; Vangnai A.S., Center of Excellence in Biocatalyst and Sustainable Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Sharma N., Metagenomics and Bioprocess Design Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India; Kaur K., Department of Chemistry, Punjab Agricultural University, Punjab, Ludhiana, 141004, India; Chakraborty P., School of Allied Healthcare and Sciences, Jain (Deemed to Be) University, Bangalore-66, Whitefield, India; Umesh M., Department of Life Sciences, CHRIST (Deemed to be University), Hosur Road, Karnataka, Bengaluru, 560029, India; Singhal B., School of Biotechnology, Gautam Buddha University, U.P, Greater Noida, India; Utreja D., Department of Chemistry, Punjab Agricultural University, Punjab, Ludhiana, 141004, India; Carrasco E.U., Departamento de Ingenier Quica, Universidad de La Frontera, Temuco, 4811230, Chile; Andler R., Escuela de Ingenier en Biotecnolog, Centro de Biotecnolog de Los Recursos Naturales (Cenbio), Universidad Catica Del Maule, Chile; Awasthi M.K., College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China; Taherzadeh M.J., Swedish Centre for Resource Recovery, University of Bor, Bor, 501 90, Sweden

Soft excess in AGN with relativistic X-ray reflection
subject: galaxies:active; galaxies:Seyfert; X-rays:galaxies
description: The soft X-ray excess, emission below (Formula presented.) 2keV over the X-ray power-law, is a marked spectral component in the X-ray spectra of many Seyfert1 galaxies. We investigate if the observed soft X-ray excess in a sample of Seyfert1s is in accordance with the prediction of the relativistic reflection model by analyzing the XMM-Newton and NuSTAR spectra. The fractional difference in the soft excess (SE) obtained from the blurred reflection emission predicted (from NuSTAR) and the observed (from XMM-Newton) luminosities show that the reflection model underestimates the SE emission in our sample. The results point to alternative models (for example, warm Comptonization) to explain the soft X-ray excess in AGN. 2023 Wiley-VCH GmbH.
creator: Ezhikode S.H.; Shyam Prakash V. P.; Dewangan G.C.; Mathew B.
source: Astronomische Nachrichten, Vol-344, No. 4
publisher: John Wiley and Sons Inc
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 46337
format: Online
language: English
type: Article
coverage: Ezhikode S.H., Department of Physics and Electronics, CHRIST (Deemed to be University), Bengaluru, 560029, India; Shyam Prakash V. P., Space Astronomy Group, ISRO Satellite Centre, ISITE Campus, Bengaluru, 560037, India; Dewangan G.C., Inter-University Centre for Astronomy and Astrophysics, Pune, 411007, India; Mathew B., Department of Physics and Electronics, CHRIST (Deemed to be University), Bengaluru, 560029, India

Mechanical Strength and Microstructure of GGBS-SCBA based Geopolymer Concrete
subject: Calcium aluminate silicate gel; Geopolymer concrete; Scanning electron microscope images; Ultrasonic pulse velocity; X-ray diffraction analysis
description: This paper deals with the attempt to develop and study the performance of ground granulated blast furnace slag (GGBS) and sugarcane bagasse ash (SCBA) based sustainable geopolymer concrete. NaOH (8M, 10M, and 12M) and Na2SiO3 were used as alkaline activators with a ratio of 2.5. SCBA mainly acted as amorphous silica and has been utilized as a substitute material for GGBS. The effect of SCBA contents (0%, 5%, 10%, 15% & 20% by the mass of binder) in terms of fresh, hardened, microstructural, and correlation properties of geopolymer concrete developed have been evaluated. Different tests such as the slump cone test, compression test, split tensile test, flexure test, and ultrasonic pulse velocity test were conducted. Scanning electron microscopy, Energy dispersive analysis, and X-ray diffraction analysis were investigated for understanding the microstructural properties. The research findings have shown that with an increase in molarity from 8M to 12M there is an increase in the strength properties of geopolymer concrete. The results in this current study show that 28 days compressive strength was found to increase by 415% when the NaOH molarity was increased from 8M to 10M and 821% when the NaOH molarity was increased from 8M to 12M. The geopolymer concrete developed with 20% SCBA and 80% GGBS with 8M NaOH solution and SS/SH ratio of 2.5 can be used for a target strength of 3035 MPa. Scanning electron microscope images show a packed and dense matrix, which clearly outlines the reason behind the attainment of higher strength in higher molarity of GGBS-SCBA based geopolymer concrete samples and the presence of CASH gel confirmed this in the geopolymer matrix. Furthermore, there is a strong correlation between the experimental findings and the model equations proposed. These presented models will be useful in improving the strength of geopolymer concrete incorporating agricultural and industrial wastes. 2023 The Authors
creator: H.M. T.; Unnikrishnan S.
source: Journal of Materials Research and Technology, Vol-24, pp. 7816-7831.
publisher: Elsevier Editora Ltda
date: 2023-01-01
rights: All Open Access; Gold Open Access
relation: ISSN: 22387854
format: Online
language: English
type: Article
coverage: H.M. T., Department of Civil Engineering, CHRIST (Deemed to be University), Bangalore, India, Department of Civil Engineering, Ballari Institute of Technology & Management, Ballari, India; Unnikrishnan S., Department of Civil Engineering, CHRIST (Deemed to be University), Bangalore, India